]> git.ipfire.org Git - thirdparty/openssl.git/blob - CHANGES
Prepare for 1.0.1r-dev
[thirdparty/openssl.git] / CHANGES
1
2 OpenSSL CHANGES
3 _______________
4
5 Changes between 1.0.1q and 1.0.1r [xx XXX xxxx]
6
7 *)
8
9 Changes between 1.0.1p and 1.0.1q [3 Dec 2015]
10
11 *) Certificate verify crash with missing PSS parameter
12
13 The signature verification routines will crash with a NULL pointer
14 dereference if presented with an ASN.1 signature using the RSA PSS
15 algorithm and absent mask generation function parameter. Since these
16 routines are used to verify certificate signature algorithms this can be
17 used to crash any certificate verification operation and exploited in a
18 DoS attack. Any application which performs certificate verification is
19 vulnerable including OpenSSL clients and servers which enable client
20 authentication.
21
22 This issue was reported to OpenSSL by Loïc Jonas Etienne (Qnective AG).
23 (CVE-2015-3194)
24 [Stephen Henson]
25
26 *) X509_ATTRIBUTE memory leak
27
28 When presented with a malformed X509_ATTRIBUTE structure OpenSSL will leak
29 memory. This structure is used by the PKCS#7 and CMS routines so any
30 application which reads PKCS#7 or CMS data from untrusted sources is
31 affected. SSL/TLS is not affected.
32
33 This issue was reported to OpenSSL by Adam Langley (Google/BoringSSL) using
34 libFuzzer.
35 (CVE-2015-3195)
36 [Stephen Henson]
37
38 *) Rewrite EVP_DecodeUpdate (base64 decoding) to fix several bugs.
39 This changes the decoding behaviour for some invalid messages,
40 though the change is mostly in the more lenient direction, and
41 legacy behaviour is preserved as much as possible.
42 [Emilia Käsper]
43
44 *) In DSA_generate_parameters_ex, if the provided seed is too short,
45 return an error
46 [Rich Salz and Ismo Puustinen <ismo.puustinen@intel.com>]
47
48 Changes between 1.0.1o and 1.0.1p [9 Jul 2015]
49
50 *) Alternate chains certificate forgery
51
52 During certificate verfification, OpenSSL will attempt to find an
53 alternative certificate chain if the first attempt to build such a chain
54 fails. An error in the implementation of this logic can mean that an
55 attacker could cause certain checks on untrusted certificates to be
56 bypassed, such as the CA flag, enabling them to use a valid leaf
57 certificate to act as a CA and "issue" an invalid certificate.
58
59 This issue was reported to OpenSSL by Adam Langley/David Benjamin
60 (Google/BoringSSL).
61 (CVE-2015-1793)
62 [Matt Caswell]
63
64 *) Race condition handling PSK identify hint
65
66 If PSK identity hints are received by a multi-threaded client then
67 the values are wrongly updated in the parent SSL_CTX structure. This can
68 result in a race condition potentially leading to a double free of the
69 identify hint data.
70 (CVE-2015-3196)
71 [Stephen Henson]
72
73 Changes between 1.0.1n and 1.0.1o [12 Jun 2015]
74 *) Fix HMAC ABI incompatibility. The previous version introduced an ABI
75 incompatibility in the handling of HMAC. The previous ABI has now been
76 restored.
77
78 Changes between 1.0.1m and 1.0.1n [11 Jun 2015]
79
80 *) Malformed ECParameters causes infinite loop
81
82 When processing an ECParameters structure OpenSSL enters an infinite loop
83 if the curve specified is over a specially malformed binary polynomial
84 field.
85
86 This can be used to perform denial of service against any
87 system which processes public keys, certificate requests or
88 certificates. This includes TLS clients and TLS servers with
89 client authentication enabled.
90
91 This issue was reported to OpenSSL by Joseph Barr-Pixton.
92 (CVE-2015-1788)
93 [Andy Polyakov]
94
95 *) Exploitable out-of-bounds read in X509_cmp_time
96
97 X509_cmp_time does not properly check the length of the ASN1_TIME
98 string and can read a few bytes out of bounds. In addition,
99 X509_cmp_time accepts an arbitrary number of fractional seconds in the
100 time string.
101
102 An attacker can use this to craft malformed certificates and CRLs of
103 various sizes and potentially cause a segmentation fault, resulting in
104 a DoS on applications that verify certificates or CRLs. TLS clients
105 that verify CRLs are affected. TLS clients and servers with client
106 authentication enabled may be affected if they use custom verification
107 callbacks.
108
109 This issue was reported to OpenSSL by Robert Swiecki (Google), and
110 independently by Hanno Böck.
111 (CVE-2015-1789)
112 [Emilia Käsper]
113
114 *) PKCS7 crash with missing EnvelopedContent
115
116 The PKCS#7 parsing code does not handle missing inner EncryptedContent
117 correctly. An attacker can craft malformed ASN.1-encoded PKCS#7 blobs
118 with missing content and trigger a NULL pointer dereference on parsing.
119
120 Applications that decrypt PKCS#7 data or otherwise parse PKCS#7
121 structures from untrusted sources are affected. OpenSSL clients and
122 servers are not affected.
123
124 This issue was reported to OpenSSL by Michal Zalewski (Google).
125 (CVE-2015-1790)
126 [Emilia Käsper]
127
128 *) CMS verify infinite loop with unknown hash function
129
130 When verifying a signedData message the CMS code can enter an infinite loop
131 if presented with an unknown hash function OID. This can be used to perform
132 denial of service against any system which verifies signedData messages using
133 the CMS code.
134 This issue was reported to OpenSSL by Johannes Bauer.
135 (CVE-2015-1792)
136 [Stephen Henson]
137
138 *) Race condition handling NewSessionTicket
139
140 If a NewSessionTicket is received by a multi-threaded client when attempting to
141 reuse a previous ticket then a race condition can occur potentially leading to
142 a double free of the ticket data.
143 (CVE-2015-1791)
144 [Matt Caswell]
145
146 *) Reject DH handshakes with parameters shorter than 768 bits.
147 [Kurt Roeckx and Emilia Kasper]
148
149 *) dhparam: generate 2048-bit parameters by default.
150 [Kurt Roeckx and Emilia Kasper]
151
152 Changes between 1.0.1l and 1.0.1m [19 Mar 2015]
153
154 *) Segmentation fault in ASN1_TYPE_cmp fix
155
156 The function ASN1_TYPE_cmp will crash with an invalid read if an attempt is
157 made to compare ASN.1 boolean types. Since ASN1_TYPE_cmp is used to check
158 certificate signature algorithm consistency this can be used to crash any
159 certificate verification operation and exploited in a DoS attack. Any
160 application which performs certificate verification is vulnerable including
161 OpenSSL clients and servers which enable client authentication.
162 (CVE-2015-0286)
163 [Stephen Henson]
164
165 *) ASN.1 structure reuse memory corruption fix
166
167 Reusing a structure in ASN.1 parsing may allow an attacker to cause
168 memory corruption via an invalid write. Such reuse is and has been
169 strongly discouraged and is believed to be rare.
170
171 Applications that parse structures containing CHOICE or ANY DEFINED BY
172 components may be affected. Certificate parsing (d2i_X509 and related
173 functions) are however not affected. OpenSSL clients and servers are
174 not affected.
175 (CVE-2015-0287)
176 [Stephen Henson]
177
178 *) PKCS7 NULL pointer dereferences fix
179
180 The PKCS#7 parsing code does not handle missing outer ContentInfo
181 correctly. An attacker can craft malformed ASN.1-encoded PKCS#7 blobs with
182 missing content and trigger a NULL pointer dereference on parsing.
183
184 Applications that verify PKCS#7 signatures, decrypt PKCS#7 data or
185 otherwise parse PKCS#7 structures from untrusted sources are
186 affected. OpenSSL clients and servers are not affected.
187
188 This issue was reported to OpenSSL by Michal Zalewski (Google).
189 (CVE-2015-0289)
190 [Emilia Käsper]
191
192 *) DoS via reachable assert in SSLv2 servers fix
193
194 A malicious client can trigger an OPENSSL_assert (i.e., an abort) in
195 servers that both support SSLv2 and enable export cipher suites by sending
196 a specially crafted SSLv2 CLIENT-MASTER-KEY message.
197
198 This issue was discovered by Sean Burford (Google) and Emilia Käsper
199 (OpenSSL development team).
200 (CVE-2015-0293)
201 [Emilia Käsper]
202
203 *) Use After Free following d2i_ECPrivatekey error fix
204
205 A malformed EC private key file consumed via the d2i_ECPrivateKey function
206 could cause a use after free condition. This, in turn, could cause a double
207 free in several private key parsing functions (such as d2i_PrivateKey
208 or EVP_PKCS82PKEY) and could lead to a DoS attack or memory corruption
209 for applications that receive EC private keys from untrusted
210 sources. This scenario is considered rare.
211
212 This issue was discovered by the BoringSSL project and fixed in their
213 commit 517073cd4b.
214 (CVE-2015-0209)
215 [Matt Caswell]
216
217 *) X509_to_X509_REQ NULL pointer deref fix
218
219 The function X509_to_X509_REQ will crash with a NULL pointer dereference if
220 the certificate key is invalid. This function is rarely used in practice.
221
222 This issue was discovered by Brian Carpenter.
223 (CVE-2015-0288)
224 [Stephen Henson]
225
226 *) Removed the export ciphers from the DEFAULT ciphers
227 [Kurt Roeckx]
228
229 Changes between 1.0.1k and 1.0.1l [15 Jan 2015]
230
231 *) Build fixes for the Windows and OpenVMS platforms
232 [Matt Caswell and Richard Levitte]
233
234 Changes between 1.0.1j and 1.0.1k [8 Jan 2015]
235
236 *) Fix DTLS segmentation fault in dtls1_get_record. A carefully crafted DTLS
237 message can cause a segmentation fault in OpenSSL due to a NULL pointer
238 dereference. This could lead to a Denial Of Service attack. Thanks to
239 Markus Stenberg of Cisco Systems, Inc. for reporting this issue.
240 (CVE-2014-3571)
241 [Steve Henson]
242
243 *) Fix DTLS memory leak in dtls1_buffer_record. A memory leak can occur in the
244 dtls1_buffer_record function under certain conditions. In particular this
245 could occur if an attacker sent repeated DTLS records with the same
246 sequence number but for the next epoch. The memory leak could be exploited
247 by an attacker in a Denial of Service attack through memory exhaustion.
248 Thanks to Chris Mueller for reporting this issue.
249 (CVE-2015-0206)
250 [Matt Caswell]
251
252 *) Fix issue where no-ssl3 configuration sets method to NULL. When openssl is
253 built with the no-ssl3 option and a SSL v3 ClientHello is received the ssl
254 method would be set to NULL which could later result in a NULL pointer
255 dereference. Thanks to Frank Schmirler for reporting this issue.
256 (CVE-2014-3569)
257 [Kurt Roeckx]
258
259 *) Abort handshake if server key exchange message is omitted for ephemeral
260 ECDH ciphersuites.
261
262 Thanks to Karthikeyan Bhargavan of the PROSECCO team at INRIA for
263 reporting this issue.
264 (CVE-2014-3572)
265 [Steve Henson]
266
267 *) Remove non-export ephemeral RSA code on client and server. This code
268 violated the TLS standard by allowing the use of temporary RSA keys in
269 non-export ciphersuites and could be used by a server to effectively
270 downgrade the RSA key length used to a value smaller than the server
271 certificate. Thanks for Karthikeyan Bhargavan of the PROSECCO team at
272 INRIA or reporting this issue.
273 (CVE-2015-0204)
274 [Steve Henson]
275
276 *) Fixed issue where DH client certificates are accepted without verification.
277 An OpenSSL server will accept a DH certificate for client authentication
278 without the certificate verify message. This effectively allows a client to
279 authenticate without the use of a private key. This only affects servers
280 which trust a client certificate authority which issues certificates
281 containing DH keys: these are extremely rare and hardly ever encountered.
282 Thanks for Karthikeyan Bhargavan of the PROSECCO team at INRIA or reporting
283 this issue.
284 (CVE-2015-0205)
285 [Steve Henson]
286
287 *) Ensure that the session ID context of an SSL is updated when its
288 SSL_CTX is updated via SSL_set_SSL_CTX.
289
290 The session ID context is typically set from the parent SSL_CTX,
291 and can vary with the CTX.
292 [Adam Langley]
293
294 *) Fix various certificate fingerprint issues.
295
296 By using non-DER or invalid encodings outside the signed portion of a
297 certificate the fingerprint can be changed without breaking the signature.
298 Although no details of the signed portion of the certificate can be changed
299 this can cause problems with some applications: e.g. those using the
300 certificate fingerprint for blacklists.
301
302 1. Reject signatures with non zero unused bits.
303
304 If the BIT STRING containing the signature has non zero unused bits reject
305 the signature. All current signature algorithms require zero unused bits.
306
307 2. Check certificate algorithm consistency.
308
309 Check the AlgorithmIdentifier inside TBS matches the one in the
310 certificate signature. NB: this will result in signature failure
311 errors for some broken certificates.
312
313 Thanks to Konrad Kraszewski from Google for reporting this issue.
314
315 3. Check DSA/ECDSA signatures use DER.
316
317 Reencode DSA/ECDSA signatures and compare with the original received
318 signature. Return an error if there is a mismatch.
319
320 This will reject various cases including garbage after signature
321 (thanks to Antti Karjalainen and Tuomo Untinen from the Codenomicon CROSS
322 program for discovering this case) and use of BER or invalid ASN.1 INTEGERs
323 (negative or with leading zeroes).
324
325 Further analysis was conducted and fixes were developed by Stephen Henson
326 of the OpenSSL core team.
327
328 (CVE-2014-8275)
329 [Steve Henson]
330
331 *) Correct Bignum squaring. Bignum squaring (BN_sqr) may produce incorrect
332 results on some platforms, including x86_64. This bug occurs at random
333 with a very low probability, and is not known to be exploitable in any
334 way, though its exact impact is difficult to determine. Thanks to Pieter
335 Wuille (Blockstream) who reported this issue and also suggested an initial
336 fix. Further analysis was conducted by the OpenSSL development team and
337 Adam Langley of Google. The final fix was developed by Andy Polyakov of
338 the OpenSSL core team.
339 (CVE-2014-3570)
340 [Andy Polyakov]
341
342 *) Do not resume sessions on the server if the negotiated protocol
343 version does not match the session's version. Resuming with a different
344 version, while not strictly forbidden by the RFC, is of questionable
345 sanity and breaks all known clients.
346 [David Benjamin, Emilia Käsper]
347
348 *) Tighten handling of the ChangeCipherSpec (CCS) message: reject
349 early CCS messages during renegotiation. (Note that because
350 renegotiation is encrypted, this early CCS was not exploitable.)
351 [Emilia Käsper]
352
353 *) Tighten client-side session ticket handling during renegotiation:
354 ensure that the client only accepts a session ticket if the server sends
355 the extension anew in the ServerHello. Previously, a TLS client would
356 reuse the old extension state and thus accept a session ticket if one was
357 announced in the initial ServerHello.
358
359 Similarly, ensure that the client requires a session ticket if one
360 was advertised in the ServerHello. Previously, a TLS client would
361 ignore a missing NewSessionTicket message.
362 [Emilia Käsper]
363
364 Changes between 1.0.1i and 1.0.1j [15 Oct 2014]
365
366 *) SRTP Memory Leak.
367
368 A flaw in the DTLS SRTP extension parsing code allows an attacker, who
369 sends a carefully crafted handshake message, to cause OpenSSL to fail
370 to free up to 64k of memory causing a memory leak. This could be
371 exploited in a Denial Of Service attack. This issue affects OpenSSL
372 1.0.1 server implementations for both SSL/TLS and DTLS regardless of
373 whether SRTP is used or configured. Implementations of OpenSSL that
374 have been compiled with OPENSSL_NO_SRTP defined are not affected.
375
376 The fix was developed by the OpenSSL team.
377 (CVE-2014-3513)
378 [OpenSSL team]
379
380 *) Session Ticket Memory Leak.
381
382 When an OpenSSL SSL/TLS/DTLS server receives a session ticket the
383 integrity of that ticket is first verified. In the event of a session
384 ticket integrity check failing, OpenSSL will fail to free memory
385 causing a memory leak. By sending a large number of invalid session
386 tickets an attacker could exploit this issue in a Denial Of Service
387 attack.
388 (CVE-2014-3567)
389 [Steve Henson]
390
391 *) Build option no-ssl3 is incomplete.
392
393 When OpenSSL is configured with "no-ssl3" as a build option, servers
394 could accept and complete a SSL 3.0 handshake, and clients could be
395 configured to send them.
396 (CVE-2014-3568)
397 [Akamai and the OpenSSL team]
398
399 *) Add support for TLS_FALLBACK_SCSV.
400 Client applications doing fallback retries should call
401 SSL_set_mode(s, SSL_MODE_SEND_FALLBACK_SCSV).
402 (CVE-2014-3566)
403 [Adam Langley, Bodo Moeller]
404
405 *) Add additional DigestInfo checks.
406
407 Reencode DigestInto in DER and check against the original when
408 verifying RSA signature: this will reject any improperly encoded
409 DigestInfo structures.
410
411 Note: this is a precautionary measure and no attacks are currently known.
412
413 [Steve Henson]
414
415 Changes between 1.0.1h and 1.0.1i [6 Aug 2014]
416
417 *) Fix SRP buffer overrun vulnerability. Invalid parameters passed to the
418 SRP code can be overrun an internal buffer. Add sanity check that
419 g, A, B < N to SRP code.
420
421 Thanks to Sean Devlin and Watson Ladd of Cryptography Services, NCC
422 Group for discovering this issue.
423 (CVE-2014-3512)
424 [Steve Henson]
425
426 *) A flaw in the OpenSSL SSL/TLS server code causes the server to negotiate
427 TLS 1.0 instead of higher protocol versions when the ClientHello message
428 is badly fragmented. This allows a man-in-the-middle attacker to force a
429 downgrade to TLS 1.0 even if both the server and the client support a
430 higher protocol version, by modifying the client's TLS records.
431
432 Thanks to David Benjamin and Adam Langley (Google) for discovering and
433 researching this issue.
434 (CVE-2014-3511)
435 [David Benjamin]
436
437 *) OpenSSL DTLS clients enabling anonymous (EC)DH ciphersuites are subject
438 to a denial of service attack. A malicious server can crash the client
439 with a null pointer dereference (read) by specifying an anonymous (EC)DH
440 ciphersuite and sending carefully crafted handshake messages.
441
442 Thanks to Felix Gröbert (Google) for discovering and researching this
443 issue.
444 (CVE-2014-3510)
445 [Emilia Käsper]
446
447 *) By sending carefully crafted DTLS packets an attacker could cause openssl
448 to leak memory. This can be exploited through a Denial of Service attack.
449 Thanks to Adam Langley for discovering and researching this issue.
450 (CVE-2014-3507)
451 [Adam Langley]
452
453 *) An attacker can force openssl to consume large amounts of memory whilst
454 processing DTLS handshake messages. This can be exploited through a
455 Denial of Service attack.
456 Thanks to Adam Langley for discovering and researching this issue.
457 (CVE-2014-3506)
458 [Adam Langley]
459
460 *) An attacker can force an error condition which causes openssl to crash
461 whilst processing DTLS packets due to memory being freed twice. This
462 can be exploited through a Denial of Service attack.
463 Thanks to Adam Langley and Wan-Teh Chang for discovering and researching
464 this issue.
465 (CVE-2014-3505)
466 [Adam Langley]
467
468 *) If a multithreaded client connects to a malicious server using a resumed
469 session and the server sends an ec point format extension it could write
470 up to 255 bytes to freed memory.
471
472 Thanks to Gabor Tyukasz (LogMeIn Inc) for discovering and researching this
473 issue.
474 (CVE-2014-3509)
475 [Gabor Tyukasz]
476
477 *) A malicious server can crash an OpenSSL client with a null pointer
478 dereference (read) by specifying an SRP ciphersuite even though it was not
479 properly negotiated with the client. This can be exploited through a
480 Denial of Service attack.
481
482 Thanks to Joonas Kuorilehto and Riku Hietamäki (Codenomicon) for
483 discovering and researching this issue.
484 (CVE-2014-5139)
485 [Steve Henson]
486
487 *) A flaw in OBJ_obj2txt may cause pretty printing functions such as
488 X509_name_oneline, X509_name_print_ex et al. to leak some information
489 from the stack. Applications may be affected if they echo pretty printing
490 output to the attacker.
491
492 Thanks to Ivan Fratric (Google) for discovering this issue.
493 (CVE-2014-3508)
494 [Emilia Käsper, and Steve Henson]
495
496 *) Fix ec_GFp_simple_points_make_affine (thus, EC_POINTs_mul etc.)
497 for corner cases. (Certain input points at infinity could lead to
498 bogus results, with non-infinity inputs mapped to infinity too.)
499 [Bodo Moeller]
500
501 Changes between 1.0.1g and 1.0.1h [5 Jun 2014]
502
503 *) Fix for SSL/TLS MITM flaw. An attacker using a carefully crafted
504 handshake can force the use of weak keying material in OpenSSL
505 SSL/TLS clients and servers.
506
507 Thanks to KIKUCHI Masashi (Lepidum Co. Ltd.) for discovering and
508 researching this issue. (CVE-2014-0224)
509 [KIKUCHI Masashi, Steve Henson]
510
511 *) Fix DTLS recursion flaw. By sending an invalid DTLS handshake to an
512 OpenSSL DTLS client the code can be made to recurse eventually crashing
513 in a DoS attack.
514
515 Thanks to Imre Rad (Search-Lab Ltd.) for discovering this issue.
516 (CVE-2014-0221)
517 [Imre Rad, Steve Henson]
518
519 *) Fix DTLS invalid fragment vulnerability. A buffer overrun attack can
520 be triggered by sending invalid DTLS fragments to an OpenSSL DTLS
521 client or server. This is potentially exploitable to run arbitrary
522 code on a vulnerable client or server.
523
524 Thanks to Jüri Aedla for reporting this issue. (CVE-2014-0195)
525 [Jüri Aedla, Steve Henson]
526
527 *) Fix bug in TLS code where clients enable anonymous ECDH ciphersuites
528 are subject to a denial of service attack.
529
530 Thanks to Felix Gröbert and Ivan Fratric at Google for discovering
531 this issue. (CVE-2014-3470)
532 [Felix Gröbert, Ivan Fratric, Steve Henson]
533
534 *) Harmonize version and its documentation. -f flag is used to display
535 compilation flags.
536 [mancha <mancha1@zoho.com>]
537
538 *) Fix eckey_priv_encode so it immediately returns an error upon a failure
539 in i2d_ECPrivateKey.
540 [mancha <mancha1@zoho.com>]
541
542 *) Fix some double frees. These are not thought to be exploitable.
543 [mancha <mancha1@zoho.com>]
544
545 Changes between 1.0.1f and 1.0.1g [7 Apr 2014]
546
547 *) A missing bounds check in the handling of the TLS heartbeat extension
548 can be used to reveal up to 64k of memory to a connected client or
549 server.
550
551 Thanks for Neel Mehta of Google Security for discovering this bug and to
552 Adam Langley <agl@chromium.org> and Bodo Moeller <bmoeller@acm.org> for
553 preparing the fix (CVE-2014-0160)
554 [Adam Langley, Bodo Moeller]
555
556 *) Fix for the attack described in the paper "Recovering OpenSSL
557 ECDSA Nonces Using the FLUSH+RELOAD Cache Side-channel Attack"
558 by Yuval Yarom and Naomi Benger. Details can be obtained from:
559 http://eprint.iacr.org/2014/140
560
561 Thanks to Yuval Yarom and Naomi Benger for discovering this
562 flaw and to Yuval Yarom for supplying a fix (CVE-2014-0076)
563 [Yuval Yarom and Naomi Benger]
564
565 *) TLS pad extension: draft-agl-tls-padding-03
566
567 Workaround for the "TLS hang bug" (see FAQ and PR#2771): if the
568 TLS client Hello record length value would otherwise be > 255 and
569 less that 512 pad with a dummy extension containing zeroes so it
570 is at least 512 bytes long.
571
572 [Adam Langley, Steve Henson]
573
574 Changes between 1.0.1e and 1.0.1f [6 Jan 2014]
575
576 *) Fix for TLS record tampering bug. A carefully crafted invalid
577 handshake could crash OpenSSL with a NULL pointer exception.
578 Thanks to Anton Johansson for reporting this issues.
579 (CVE-2013-4353)
580
581 *) Keep original DTLS digest and encryption contexts in retransmission
582 structures so we can use the previous session parameters if they need
583 to be resent. (CVE-2013-6450)
584 [Steve Henson]
585
586 *) Add option SSL_OP_SAFARI_ECDHE_ECDSA_BUG (part of SSL_OP_ALL) which
587 avoids preferring ECDHE-ECDSA ciphers when the client appears to be
588 Safari on OS X. Safari on OS X 10.8..10.8.3 advertises support for
589 several ECDHE-ECDSA ciphers, but fails to negotiate them. The bug
590 is fixed in OS X 10.8.4, but Apple have ruled out both hot fixing
591 10.8..10.8.3 and forcing users to upgrade to 10.8.4 or newer.
592 [Rob Stradling, Adam Langley]
593
594 Changes between 1.0.1d and 1.0.1e [11 Feb 2013]
595
596 *) Correct fix for CVE-2013-0169. The original didn't work on AES-NI
597 supporting platforms or when small records were transferred.
598 [Andy Polyakov, Steve Henson]
599
600 Changes between 1.0.1c and 1.0.1d [5 Feb 2013]
601
602 *) Make the decoding of SSLv3, TLS and DTLS CBC records constant time.
603
604 This addresses the flaw in CBC record processing discovered by
605 Nadhem Alfardan and Kenny Paterson. Details of this attack can be found
606 at: http://www.isg.rhul.ac.uk/tls/
607
608 Thanks go to Nadhem Alfardan and Kenny Paterson of the Information
609 Security Group at Royal Holloway, University of London
610 (www.isg.rhul.ac.uk) for discovering this flaw and Adam Langley and
611 Emilia Käsper for the initial patch.
612 (CVE-2013-0169)
613 [Emilia Käsper, Adam Langley, Ben Laurie, Andy Polyakov, Steve Henson]
614
615 *) Fix flaw in AESNI handling of TLS 1.2 and 1.1 records for CBC mode
616 ciphersuites which can be exploited in a denial of service attack.
617 Thanks go to and to Adam Langley <agl@chromium.org> for discovering
618 and detecting this bug and to Wolfgang Ettlinger
619 <wolfgang.ettlinger@gmail.com> for independently discovering this issue.
620 (CVE-2012-2686)
621 [Adam Langley]
622
623 *) Return an error when checking OCSP signatures when key is NULL.
624 This fixes a DoS attack. (CVE-2013-0166)
625 [Steve Henson]
626
627 *) Make openssl verify return errors.
628 [Chris Palmer <palmer@google.com> and Ben Laurie]
629
630 *) Call OCSP Stapling callback after ciphersuite has been chosen, so
631 the right response is stapled. Also change SSL_get_certificate()
632 so it returns the certificate actually sent.
633 See http://rt.openssl.org/Ticket/Display.html?id=2836.
634 [Rob Stradling <rob.stradling@comodo.com>]
635
636 *) Fix possible deadlock when decoding public keys.
637 [Steve Henson]
638
639 *) Don't use TLS 1.0 record version number in initial client hello
640 if renegotiating.
641 [Steve Henson]
642
643 Changes between 1.0.1b and 1.0.1c [10 May 2012]
644
645 *) Sanity check record length before skipping explicit IV in TLS
646 1.2, 1.1 and DTLS to fix DoS attack.
647
648 Thanks to Codenomicon for discovering this issue using Fuzz-o-Matic
649 fuzzing as a service testing platform.
650 (CVE-2012-2333)
651 [Steve Henson]
652
653 *) Initialise tkeylen properly when encrypting CMS messages.
654 Thanks to Solar Designer of Openwall for reporting this issue.
655 [Steve Henson]
656
657 *) In FIPS mode don't try to use composite ciphers as they are not
658 approved.
659 [Steve Henson]
660
661 Changes between 1.0.1a and 1.0.1b [26 Apr 2012]
662
663 *) OpenSSL 1.0.0 sets SSL_OP_ALL to 0x80000FFFL and OpenSSL 1.0.1 and
664 1.0.1a set SSL_OP_NO_TLSv1_1 to 0x00000400L which would unfortunately
665 mean any application compiled against OpenSSL 1.0.0 headers setting
666 SSL_OP_ALL would also set SSL_OP_NO_TLSv1_1, unintentionally disablng
667 TLS 1.1 also. Fix this by changing the value of SSL_OP_NO_TLSv1_1 to
668 0x10000000L Any application which was previously compiled against
669 OpenSSL 1.0.1 or 1.0.1a headers and which cares about SSL_OP_NO_TLSv1_1
670 will need to be recompiled as a result. Letting be results in
671 inability to disable specifically TLS 1.1 and in client context,
672 in unlike event, limit maximum offered version to TLS 1.0 [see below].
673 [Steve Henson]
674
675 *) In order to ensure interoperabilty SSL_OP_NO_protocolX does not
676 disable just protocol X, but all protocols above X *if* there are
677 protocols *below* X still enabled. In more practical terms it means
678 that if application wants to disable TLS1.0 in favor of TLS1.1 and
679 above, it's not sufficient to pass SSL_OP_NO_TLSv1, one has to pass
680 SSL_OP_NO_TLSv1|SSL_OP_NO_SSLv3|SSL_OP_NO_SSLv2. This applies to
681 client side.
682 [Andy Polyakov]
683
684 Changes between 1.0.1 and 1.0.1a [19 Apr 2012]
685
686 *) Check for potentially exploitable overflows in asn1_d2i_read_bio
687 BUF_mem_grow and BUF_mem_grow_clean. Refuse attempts to shrink buffer
688 in CRYPTO_realloc_clean.
689
690 Thanks to Tavis Ormandy, Google Security Team, for discovering this
691 issue and to Adam Langley <agl@chromium.org> for fixing it.
692 (CVE-2012-2110)
693 [Adam Langley (Google), Tavis Ormandy, Google Security Team]
694
695 *) Don't allow TLS 1.2 SHA-256 ciphersuites in TLS 1.0, 1.1 connections.
696 [Adam Langley]
697
698 *) Workarounds for some broken servers that "hang" if a client hello
699 record length exceeds 255 bytes.
700
701 1. Do not use record version number > TLS 1.0 in initial client
702 hello: some (but not all) hanging servers will now work.
703 2. If we set OPENSSL_MAX_TLS1_2_CIPHER_LENGTH this will truncate
704 the number of ciphers sent in the client hello. This should be
705 set to an even number, such as 50, for example by passing:
706 -DOPENSSL_MAX_TLS1_2_CIPHER_LENGTH=50 to config or Configure.
707 Most broken servers should now work.
708 3. If all else fails setting OPENSSL_NO_TLS1_2_CLIENT will disable
709 TLS 1.2 client support entirely.
710 [Steve Henson]
711
712 *) Fix SEGV in Vector Permutation AES module observed in OpenSSH.
713 [Andy Polyakov]
714
715 Changes between 1.0.0h and 1.0.1 [14 Mar 2012]
716
717 *) Add compatibility with old MDC2 signatures which use an ASN1 OCTET
718 STRING form instead of a DigestInfo.
719 [Steve Henson]
720
721 *) The format used for MDC2 RSA signatures is inconsistent between EVP
722 and the RSA_sign/RSA_verify functions. This was made more apparent when
723 OpenSSL used RSA_sign/RSA_verify for some RSA signatures in particular
724 those which went through EVP_PKEY_METHOD in 1.0.0 and later. Detect
725 the correct format in RSA_verify so both forms transparently work.
726 [Steve Henson]
727
728 *) Some servers which support TLS 1.0 can choke if we initially indicate
729 support for TLS 1.2 and later renegotiate using TLS 1.0 in the RSA
730 encrypted premaster secret. As a workaround use the maximum pemitted
731 client version in client hello, this should keep such servers happy
732 and still work with previous versions of OpenSSL.
733 [Steve Henson]
734
735 *) Add support for TLS/DTLS heartbeats.
736 [Robin Seggelmann <seggelmann@fh-muenster.de>]
737
738 *) Add support for SCTP.
739 [Robin Seggelmann <seggelmann@fh-muenster.de>]
740
741 *) Improved PRNG seeding for VOS.
742 [Paul Green <Paul.Green@stratus.com>]
743
744 *) Extensive assembler packs updates, most notably:
745
746 - x86[_64]: AES-NI, PCLMULQDQ, RDRAND support;
747 - x86[_64]: SSSE3 support (SHA1, vector-permutation AES);
748 - x86_64: bit-sliced AES implementation;
749 - ARM: NEON support, contemporary platforms optimizations;
750 - s390x: z196 support;
751 - *: GHASH and GF(2^m) multiplication implementations;
752
753 [Andy Polyakov]
754
755 *) Make TLS-SRP code conformant with RFC 5054 API cleanup
756 (removal of unnecessary code)
757 [Peter Sylvester <peter.sylvester@edelweb.fr>]
758
759 *) Add TLS key material exporter from RFC 5705.
760 [Eric Rescorla]
761
762 *) Add DTLS-SRTP negotiation from RFC 5764.
763 [Eric Rescorla]
764
765 *) Add Next Protocol Negotiation,
766 http://tools.ietf.org/html/draft-agl-tls-nextprotoneg-00. Can be
767 disabled with a no-npn flag to config or Configure. Code donated
768 by Google.
769 [Adam Langley <agl@google.com> and Ben Laurie]
770
771 *) Add optional 64-bit optimized implementations of elliptic curves NIST-P224,
772 NIST-P256, NIST-P521, with constant-time single point multiplication on
773 typical inputs. Compiler support for the nonstandard type __uint128_t is
774 required to use this (present in gcc 4.4 and later, for 64-bit builds).
775 Code made available under Apache License version 2.0.
776
777 Specify "enable-ec_nistp_64_gcc_128" on the Configure (or config) command
778 line to include this in your build of OpenSSL, and run "make depend" (or
779 "make update"). This enables the following EC_METHODs:
780
781 EC_GFp_nistp224_method()
782 EC_GFp_nistp256_method()
783 EC_GFp_nistp521_method()
784
785 EC_GROUP_new_by_curve_name() will automatically use these (while
786 EC_GROUP_new_curve_GFp() currently prefers the more flexible
787 implementations).
788 [Emilia Käsper, Adam Langley, Bodo Moeller (Google)]
789
790 *) Use type ossl_ssize_t instad of ssize_t which isn't available on
791 all platforms. Move ssize_t definition from e_os.h to the public
792 header file e_os2.h as it now appears in public header file cms.h
793 [Steve Henson]
794
795 *) New -sigopt option to the ca, req and x509 utilities. Additional
796 signature parameters can be passed using this option and in
797 particular PSS.
798 [Steve Henson]
799
800 *) Add RSA PSS signing function. This will generate and set the
801 appropriate AlgorithmIdentifiers for PSS based on those in the
802 corresponding EVP_MD_CTX structure. No application support yet.
803 [Steve Henson]
804
805 *) Support for companion algorithm specific ASN1 signing routines.
806 New function ASN1_item_sign_ctx() signs a pre-initialised
807 EVP_MD_CTX structure and sets AlgorithmIdentifiers based on
808 the appropriate parameters.
809 [Steve Henson]
810
811 *) Add new algorithm specific ASN1 verification initialisation function
812 to EVP_PKEY_ASN1_METHOD: this is not in EVP_PKEY_METHOD since the ASN1
813 handling will be the same no matter what EVP_PKEY_METHOD is used.
814 Add a PSS handler to support verification of PSS signatures: checked
815 against a number of sample certificates.
816 [Steve Henson]
817
818 *) Add signature printing for PSS. Add PSS OIDs.
819 [Steve Henson, Martin Kaiser <lists@kaiser.cx>]
820
821 *) Add algorithm specific signature printing. An individual ASN1 method
822 can now print out signatures instead of the standard hex dump.
823
824 More complex signatures (e.g. PSS) can print out more meaningful
825 information. Include DSA version that prints out the signature
826 parameters r, s.
827 [Steve Henson]
828
829 *) Password based recipient info support for CMS library: implementing
830 RFC3211.
831 [Steve Henson]
832
833 *) Split password based encryption into PBES2 and PBKDF2 functions. This
834 neatly separates the code into cipher and PBE sections and is required
835 for some algorithms that split PBES2 into separate pieces (such as
836 password based CMS).
837 [Steve Henson]
838
839 *) Session-handling fixes:
840 - Fix handling of connections that are resuming with a session ID,
841 but also support Session Tickets.
842 - Fix a bug that suppressed issuing of a new ticket if the client
843 presented a ticket with an expired session.
844 - Try to set the ticket lifetime hint to something reasonable.
845 - Make tickets shorter by excluding irrelevant information.
846 - On the client side, don't ignore renewed tickets.
847 [Adam Langley, Bodo Moeller (Google)]
848
849 *) Fix PSK session representation.
850 [Bodo Moeller]
851
852 *) Add RC4-MD5 and AESNI-SHA1 "stitched" implementations.
853
854 This work was sponsored by Intel.
855 [Andy Polyakov]
856
857 *) Add GCM support to TLS library. Some custom code is needed to split
858 the IV between the fixed (from PRF) and explicit (from TLS record)
859 portions. This adds all GCM ciphersuites supported by RFC5288 and
860 RFC5289. Generalise some AES* cipherstrings to inlclude GCM and
861 add a special AESGCM string for GCM only.
862 [Steve Henson]
863
864 *) Expand range of ctrls for AES GCM. Permit setting invocation
865 field on decrypt and retrieval of invocation field only on encrypt.
866 [Steve Henson]
867
868 *) Add HMAC ECC ciphersuites from RFC5289. Include SHA384 PRF support.
869 As required by RFC5289 these ciphersuites cannot be used if for
870 versions of TLS earlier than 1.2.
871 [Steve Henson]
872
873 *) For FIPS capable OpenSSL interpret a NULL default public key method
874 as unset and return the appopriate default but do *not* set the default.
875 This means we can return the appopriate method in applications that
876 swicth between FIPS and non-FIPS modes.
877 [Steve Henson]
878
879 *) Redirect HMAC and CMAC operations to FIPS module in FIPS mode. If an
880 ENGINE is used then we cannot handle that in the FIPS module so we
881 keep original code iff non-FIPS operations are allowed.
882 [Steve Henson]
883
884 *) Add -attime option to openssl utilities.
885 [Peter Eckersley <pde@eff.org>, Ben Laurie and Steve Henson]
886
887 *) Redirect DSA and DH operations to FIPS module in FIPS mode.
888 [Steve Henson]
889
890 *) Redirect ECDSA and ECDH operations to FIPS module in FIPS mode. Also use
891 FIPS EC methods unconditionally for now.
892 [Steve Henson]
893
894 *) New build option no-ec2m to disable characteristic 2 code.
895 [Steve Henson]
896
897 *) Backport libcrypto audit of return value checking from 1.1.0-dev; not
898 all cases can be covered as some introduce binary incompatibilities.
899 [Steve Henson]
900
901 *) Redirect RSA operations to FIPS module including keygen,
902 encrypt, decrypt, sign and verify. Block use of non FIPS RSA methods.
903 [Steve Henson]
904
905 *) Add similar low level API blocking to ciphers.
906 [Steve Henson]
907
908 *) Low level digest APIs are not approved in FIPS mode: any attempt
909 to use these will cause a fatal error. Applications that *really* want
910 to use them can use the private_* version instead.
911 [Steve Henson]
912
913 *) Redirect cipher operations to FIPS module for FIPS builds.
914 [Steve Henson]
915
916 *) Redirect digest operations to FIPS module for FIPS builds.
917 [Steve Henson]
918
919 *) Update build system to add "fips" flag which will link in fipscanister.o
920 for static and shared library builds embedding a signature if needed.
921 [Steve Henson]
922
923 *) Output TLS supported curves in preference order instead of numerical
924 order. This is currently hardcoded for the highest order curves first.
925 This should be configurable so applications can judge speed vs strength.
926 [Steve Henson]
927
928 *) Add TLS v1.2 server support for client authentication.
929 [Steve Henson]
930
931 *) Add support for FIPS mode in ssl library: disable SSLv3, non-FIPS ciphers
932 and enable MD5.
933 [Steve Henson]
934
935 *) Functions FIPS_mode_set() and FIPS_mode() which call the underlying
936 FIPS modules versions.
937 [Steve Henson]
938
939 *) Add TLS v1.2 client side support for client authentication. Keep cache
940 of handshake records longer as we don't know the hash algorithm to use
941 until after the certificate request message is received.
942 [Steve Henson]
943
944 *) Initial TLS v1.2 client support. Add a default signature algorithms
945 extension including all the algorithms we support. Parse new signature
946 format in client key exchange. Relax some ECC signing restrictions for
947 TLS v1.2 as indicated in RFC5246.
948 [Steve Henson]
949
950 *) Add server support for TLS v1.2 signature algorithms extension. Switch
951 to new signature format when needed using client digest preference.
952 All server ciphersuites should now work correctly in TLS v1.2. No client
953 support yet and no support for client certificates.
954 [Steve Henson]
955
956 *) Initial TLS v1.2 support. Add new SHA256 digest to ssl code, switch
957 to SHA256 for PRF when using TLS v1.2 and later. Add new SHA256 based
958 ciphersuites. At present only RSA key exchange ciphersuites work with
959 TLS v1.2. Add new option for TLS v1.2 replacing the old and obsolete
960 SSL_OP_PKCS1_CHECK flags with SSL_OP_NO_TLSv1_2. New TLSv1.2 methods
961 and version checking.
962 [Steve Henson]
963
964 *) New option OPENSSL_NO_SSL_INTERN. If an application can be compiled
965 with this defined it will not be affected by any changes to ssl internal
966 structures. Add several utility functions to allow openssl application
967 to work with OPENSSL_NO_SSL_INTERN defined.
968 [Steve Henson]
969
970 *) Add SRP support.
971 [Tom Wu <tjw@cs.stanford.edu> and Ben Laurie]
972
973 *) Add functions to copy EVP_PKEY_METHOD and retrieve flags and id.
974 [Steve Henson]
975
976 *) Permit abbreviated handshakes when renegotiating using the function
977 SSL_renegotiate_abbreviated().
978 [Robin Seggelmann <seggelmann@fh-muenster.de>]
979
980 *) Add call to ENGINE_register_all_complete() to
981 ENGINE_load_builtin_engines(), so some implementations get used
982 automatically instead of needing explicit application support.
983 [Steve Henson]
984
985 *) Add support for TLS key exporter as described in RFC5705.
986 [Robin Seggelmann <seggelmann@fh-muenster.de>, Steve Henson]
987
988 *) Initial TLSv1.1 support. Since TLSv1.1 is very similar to TLS v1.0 only
989 a few changes are required:
990
991 Add SSL_OP_NO_TLSv1_1 flag.
992 Add TLSv1_1 methods.
993 Update version checking logic to handle version 1.1.
994 Add explicit IV handling (ported from DTLS code).
995 Add command line options to s_client/s_server.
996 [Steve Henson]
997
998 Changes between 1.0.0g and 1.0.0h [12 Mar 2012]
999
1000 *) Fix MMA (Bleichenbacher's attack on PKCS #1 v1.5 RSA padding) weakness
1001 in CMS and PKCS7 code. When RSA decryption fails use a random key for
1002 content decryption and always return the same error. Note: this attack
1003 needs on average 2^20 messages so it only affects automated senders. The
1004 old behaviour can be reenabled in the CMS code by setting the
1005 CMS_DEBUG_DECRYPT flag: this is useful for debugging and testing where
1006 an MMA defence is not necessary.
1007 Thanks to Ivan Nestlerode <inestlerode@us.ibm.com> for discovering
1008 this issue. (CVE-2012-0884)
1009 [Steve Henson]
1010
1011 *) Fix CVE-2011-4619: make sure we really are receiving a
1012 client hello before rejecting multiple SGC restarts. Thanks to
1013 Ivan Nestlerode <inestlerode@us.ibm.com> for discovering this bug.
1014 [Steve Henson]
1015
1016 Changes between 1.0.0f and 1.0.0g [18 Jan 2012]
1017
1018 *) Fix for DTLS DoS issue introduced by fix for CVE-2011-4109.
1019 Thanks to Antonio Martin, Enterprise Secure Access Research and
1020 Development, Cisco Systems, Inc. for discovering this bug and
1021 preparing a fix. (CVE-2012-0050)
1022 [Antonio Martin]
1023
1024 Changes between 1.0.0e and 1.0.0f [4 Jan 2012]
1025
1026 *) Nadhem Alfardan and Kenny Paterson have discovered an extension
1027 of the Vaudenay padding oracle attack on CBC mode encryption
1028 which enables an efficient plaintext recovery attack against
1029 the OpenSSL implementation of DTLS. Their attack exploits timing
1030 differences arising during decryption processing. A research
1031 paper describing this attack can be found at:
1032 http://www.isg.rhul.ac.uk/~kp/dtls.pdf
1033 Thanks go to Nadhem Alfardan and Kenny Paterson of the Information
1034 Security Group at Royal Holloway, University of London
1035 (www.isg.rhul.ac.uk) for discovering this flaw and to Robin Seggelmann
1036 <seggelmann@fh-muenster.de> and Michael Tuexen <tuexen@fh-muenster.de>
1037 for preparing the fix. (CVE-2011-4108)
1038 [Robin Seggelmann, Michael Tuexen]
1039
1040 *) Clear bytes used for block padding of SSL 3.0 records.
1041 (CVE-2011-4576)
1042 [Adam Langley (Google)]
1043
1044 *) Only allow one SGC handshake restart for SSL/TLS. Thanks to George
1045 Kadianakis <desnacked@gmail.com> for discovering this issue and
1046 Adam Langley for preparing the fix. (CVE-2011-4619)
1047 [Adam Langley (Google)]
1048
1049 *) Check parameters are not NULL in GOST ENGINE. (CVE-2012-0027)
1050 [Andrey Kulikov <amdeich@gmail.com>]
1051
1052 *) Prevent malformed RFC3779 data triggering an assertion failure.
1053 Thanks to Andrew Chi, BBN Technologies, for discovering the flaw
1054 and Rob Austein <sra@hactrn.net> for fixing it. (CVE-2011-4577)
1055 [Rob Austein <sra@hactrn.net>]
1056
1057 *) Improved PRNG seeding for VOS.
1058 [Paul Green <Paul.Green@stratus.com>]
1059
1060 *) Fix ssl_ciph.c set-up race.
1061 [Adam Langley (Google)]
1062
1063 *) Fix spurious failures in ecdsatest.c.
1064 [Emilia Käsper (Google)]
1065
1066 *) Fix the BIO_f_buffer() implementation (which was mixing different
1067 interpretations of the '..._len' fields).
1068 [Adam Langley (Google)]
1069
1070 *) Fix handling of BN_BLINDING: now BN_BLINDING_invert_ex (rather than
1071 BN_BLINDING_invert_ex) calls BN_BLINDING_update, ensuring that concurrent
1072 threads won't reuse the same blinding coefficients.
1073
1074 This also avoids the need to obtain the CRYPTO_LOCK_RSA_BLINDING
1075 lock to call BN_BLINDING_invert_ex, and avoids one use of
1076 BN_BLINDING_update for each BN_BLINDING structure (previously,
1077 the last update always remained unused).
1078 [Emilia Käsper (Google)]
1079
1080 *) In ssl3_clear, preserve s3->init_extra along with s3->rbuf.
1081 [Bob Buckholz (Google)]
1082
1083 Changes between 1.0.0d and 1.0.0e [6 Sep 2011]
1084
1085 *) Fix bug where CRLs with nextUpdate in the past are sometimes accepted
1086 by initialising X509_STORE_CTX properly. (CVE-2011-3207)
1087 [Kaspar Brand <ossl@velox.ch>]
1088
1089 *) Fix SSL memory handling for (EC)DH ciphersuites, in particular
1090 for multi-threaded use of ECDH. (CVE-2011-3210)
1091 [Adam Langley (Google)]
1092
1093 *) Fix x509_name_ex_d2i memory leak on bad inputs.
1094 [Bodo Moeller]
1095
1096 *) Remove hard coded ecdsaWithSHA1 signature tests in ssl code and check
1097 signature public key algorithm by using OID xref utilities instead.
1098 Before this you could only use some ECC ciphersuites with SHA1 only.
1099 [Steve Henson]
1100
1101 *) Add protection against ECDSA timing attacks as mentioned in the paper
1102 by Billy Bob Brumley and Nicola Tuveri, see:
1103
1104 http://eprint.iacr.org/2011/232.pdf
1105
1106 [Billy Bob Brumley and Nicola Tuveri]
1107
1108 Changes between 1.0.0c and 1.0.0d [8 Feb 2011]
1109
1110 *) Fix parsing of OCSP stapling ClientHello extension. CVE-2011-0014
1111 [Neel Mehta, Adam Langley, Bodo Moeller (Google)]
1112
1113 *) Fix bug in string printing code: if *any* escaping is enabled we must
1114 escape the escape character (backslash) or the resulting string is
1115 ambiguous.
1116 [Steve Henson]
1117
1118 Changes between 1.0.0b and 1.0.0c [2 Dec 2010]
1119
1120 *) Disable code workaround for ancient and obsolete Netscape browsers
1121 and servers: an attacker can use it in a ciphersuite downgrade attack.
1122 Thanks to Martin Rex for discovering this bug. CVE-2010-4180
1123 [Steve Henson]
1124
1125 *) Fixed J-PAKE implementation error, originally discovered by
1126 Sebastien Martini, further info and confirmation from Stefan
1127 Arentz and Feng Hao. Note that this fix is a security fix. CVE-2010-4252
1128 [Ben Laurie]
1129
1130 Changes between 1.0.0a and 1.0.0b [16 Nov 2010]
1131
1132 *) Fix extension code to avoid race conditions which can result in a buffer
1133 overrun vulnerability: resumed sessions must not be modified as they can
1134 be shared by multiple threads. CVE-2010-3864
1135 [Steve Henson]
1136
1137 *) Fix WIN32 build system to correctly link an ENGINE directory into
1138 a DLL.
1139 [Steve Henson]
1140
1141 Changes between 1.0.0 and 1.0.0a [01 Jun 2010]
1142
1143 *) Check return value of int_rsa_verify in pkey_rsa_verifyrecover
1144 (CVE-2010-1633)
1145 [Steve Henson, Peter-Michael Hager <hager@dortmund.net>]
1146
1147 Changes between 0.9.8n and 1.0.0 [29 Mar 2010]
1148
1149 *) Add "missing" function EVP_CIPHER_CTX_copy(). This copies a cipher
1150 context. The operation can be customised via the ctrl mechanism in
1151 case ENGINEs want to include additional functionality.
1152 [Steve Henson]
1153
1154 *) Tolerate yet another broken PKCS#8 key format: private key value negative.
1155 [Steve Henson]
1156
1157 *) Add new -subject_hash_old and -issuer_hash_old options to x509 utility to
1158 output hashes compatible with older versions of OpenSSL.
1159 [Willy Weisz <weisz@vcpc.univie.ac.at>]
1160
1161 *) Fix compression algorithm handling: if resuming a session use the
1162 compression algorithm of the resumed session instead of determining
1163 it from client hello again. Don't allow server to change algorithm.
1164 [Steve Henson]
1165
1166 *) Add load_crls() function to apps tidying load_certs() too. Add option
1167 to verify utility to allow additional CRLs to be included.
1168 [Steve Henson]
1169
1170 *) Update OCSP request code to permit adding custom headers to the request:
1171 some responders need this.
1172 [Steve Henson]
1173
1174 *) The function EVP_PKEY_sign() returns <=0 on error: check return code
1175 correctly.
1176 [Julia Lawall <julia@diku.dk>]
1177
1178 *) Update verify callback code in apps/s_cb.c and apps/verify.c, it
1179 needlessly dereferenced structures, used obsolete functions and
1180 didn't handle all updated verify codes correctly.
1181 [Steve Henson]
1182
1183 *) Disable MD2 in the default configuration.
1184 [Steve Henson]
1185
1186 *) In BIO_pop() and BIO_push() use the ctrl argument (which was NULL) to
1187 indicate the initial BIO being pushed or popped. This makes it possible
1188 to determine whether the BIO is the one explicitly called or as a result
1189 of the ctrl being passed down the chain. Fix BIO_pop() and SSL BIOs so
1190 it handles reference counts correctly and doesn't zero out the I/O bio
1191 when it is not being explicitly popped. WARNING: applications which
1192 included workarounds for the old buggy behaviour will need to be modified
1193 or they could free up already freed BIOs.
1194 [Steve Henson]
1195
1196 *) Extend the uni2asc/asc2uni => OPENSSL_uni2asc/OPENSSL_asc2uni
1197 renaming to all platforms (within the 0.9.8 branch, this was
1198 done conditionally on Netware platforms to avoid a name clash).
1199 [Guenter <lists@gknw.net>]
1200
1201 *) Add ECDHE and PSK support to DTLS.
1202 [Michael Tuexen <tuexen@fh-muenster.de>]
1203
1204 *) Add CHECKED_STACK_OF macro to safestack.h, otherwise safestack can't
1205 be used on C++.
1206 [Steve Henson]
1207
1208 *) Add "missing" function EVP_MD_flags() (without this the only way to
1209 retrieve a digest flags is by accessing the structure directly. Update
1210 EVP_MD_do_all*() and EVP_CIPHER_do_all*() to include the name a digest
1211 or cipher is registered as in the "from" argument. Print out all
1212 registered digests in the dgst usage message instead of manually
1213 attempting to work them out.
1214 [Steve Henson]
1215
1216 *) If no SSLv2 ciphers are used don't use an SSLv2 compatible client hello:
1217 this allows the use of compression and extensions. Change default cipher
1218 string to remove SSLv2 ciphersuites. This effectively avoids ancient SSLv2
1219 by default unless an application cipher string requests it.
1220 [Steve Henson]
1221
1222 *) Alter match criteria in PKCS12_parse(). It used to try to use local
1223 key ids to find matching certificates and keys but some PKCS#12 files
1224 don't follow the (somewhat unwritten) rules and this strategy fails.
1225 Now just gather all certificates together and the first private key
1226 then look for the first certificate that matches the key.
1227 [Steve Henson]
1228
1229 *) Support use of registered digest and cipher names for dgst and cipher
1230 commands instead of having to add each one as a special case. So now
1231 you can do:
1232
1233 openssl sha256 foo
1234
1235 as well as:
1236
1237 openssl dgst -sha256 foo
1238
1239 and this works for ENGINE based algorithms too.
1240
1241 [Steve Henson]
1242
1243 *) Update Gost ENGINE to support parameter files.
1244 [Victor B. Wagner <vitus@cryptocom.ru>]
1245
1246 *) Support GeneralizedTime in ca utility.
1247 [Oliver Martin <oliver@volatilevoid.net>, Steve Henson]
1248
1249 *) Enhance the hash format used for certificate directory links. The new
1250 form uses the canonical encoding (meaning equivalent names will work
1251 even if they aren't identical) and uses SHA1 instead of MD5. This form
1252 is incompatible with the older format and as a result c_rehash should
1253 be used to rebuild symbolic links.
1254 [Steve Henson]
1255
1256 *) Make PKCS#8 the default write format for private keys, replacing the
1257 traditional format. This form is standardised, more secure and doesn't
1258 include an implicit MD5 dependency.
1259 [Steve Henson]
1260
1261 *) Add a $gcc_devteam_warn option to Configure. The idea is that any code
1262 committed to OpenSSL should pass this lot as a minimum.
1263 [Steve Henson]
1264
1265 *) Add session ticket override functionality for use by EAP-FAST.
1266 [Jouni Malinen <j@w1.fi>]
1267
1268 *) Modify HMAC functions to return a value. Since these can be implemented
1269 in an ENGINE errors can occur.
1270 [Steve Henson]
1271
1272 *) Type-checked OBJ_bsearch_ex.
1273 [Ben Laurie]
1274
1275 *) Type-checked OBJ_bsearch. Also some constification necessitated
1276 by type-checking. Still to come: TXT_DB, bsearch(?),
1277 OBJ_bsearch_ex, qsort, CRYPTO_EX_DATA, ASN1_VALUE, ASN1_STRING,
1278 CONF_VALUE.
1279 [Ben Laurie]
1280
1281 *) New function OPENSSL_gmtime_adj() to add a specific number of days and
1282 seconds to a tm structure directly, instead of going through OS
1283 specific date routines. This avoids any issues with OS routines such
1284 as the year 2038 bug. New *_adj() functions for ASN1 time structures
1285 and X509_time_adj_ex() to cover the extended range. The existing
1286 X509_time_adj() is still usable and will no longer have any date issues.
1287 [Steve Henson]
1288
1289 *) Delta CRL support. New use deltas option which will attempt to locate
1290 and search any appropriate delta CRLs available.
1291
1292 This work was sponsored by Google.
1293 [Steve Henson]
1294
1295 *) Support for CRLs partitioned by reason code. Reorganise CRL processing
1296 code and add additional score elements. Validate alternate CRL paths
1297 as part of the CRL checking and indicate a new error "CRL path validation
1298 error" in this case. Applications wanting additional details can use
1299 the verify callback and check the new "parent" field. If this is not
1300 NULL CRL path validation is taking place. Existing applications wont
1301 see this because it requires extended CRL support which is off by
1302 default.
1303
1304 This work was sponsored by Google.
1305 [Steve Henson]
1306
1307 *) Support for freshest CRL extension.
1308
1309 This work was sponsored by Google.
1310 [Steve Henson]
1311
1312 *) Initial indirect CRL support. Currently only supported in the CRLs
1313 passed directly and not via lookup. Process certificate issuer
1314 CRL entry extension and lookup CRL entries by bother issuer name
1315 and serial number. Check and process CRL issuer entry in IDP extension.
1316
1317 This work was sponsored by Google.
1318 [Steve Henson]
1319
1320 *) Add support for distinct certificate and CRL paths. The CRL issuer
1321 certificate is validated separately in this case. Only enabled if
1322 an extended CRL support flag is set: this flag will enable additional
1323 CRL functionality in future.
1324
1325 This work was sponsored by Google.
1326 [Steve Henson]
1327
1328 *) Add support for policy mappings extension.
1329
1330 This work was sponsored by Google.
1331 [Steve Henson]
1332
1333 *) Fixes to pathlength constraint, self issued certificate handling,
1334 policy processing to align with RFC3280 and PKITS tests.
1335
1336 This work was sponsored by Google.
1337 [Steve Henson]
1338
1339 *) Support for name constraints certificate extension. DN, email, DNS
1340 and URI types are currently supported.
1341
1342 This work was sponsored by Google.
1343 [Steve Henson]
1344
1345 *) To cater for systems that provide a pointer-based thread ID rather
1346 than numeric, deprecate the current numeric thread ID mechanism and
1347 replace it with a structure and associated callback type. This
1348 mechanism allows a numeric "hash" to be extracted from a thread ID in
1349 either case, and on platforms where pointers are larger than 'long',
1350 mixing is done to help ensure the numeric 'hash' is usable even if it
1351 can't be guaranteed unique. The default mechanism is to use "&errno"
1352 as a pointer-based thread ID to distinguish between threads.
1353
1354 Applications that want to provide their own thread IDs should now use
1355 CRYPTO_THREADID_set_callback() to register a callback that will call
1356 either CRYPTO_THREADID_set_numeric() or CRYPTO_THREADID_set_pointer().
1357
1358 Note that ERR_remove_state() is now deprecated, because it is tied
1359 to the assumption that thread IDs are numeric. ERR_remove_state(0)
1360 to free the current thread's error state should be replaced by
1361 ERR_remove_thread_state(NULL).
1362
1363 (This new approach replaces the functions CRYPTO_set_idptr_callback(),
1364 CRYPTO_get_idptr_callback(), and CRYPTO_thread_idptr() that existed in
1365 OpenSSL 0.9.9-dev between June 2006 and August 2008. Also, if an
1366 application was previously providing a numeric thread callback that
1367 was inappropriate for distinguishing threads, then uniqueness might
1368 have been obtained with &errno that happened immediately in the
1369 intermediate development versions of OpenSSL; this is no longer the
1370 case, the numeric thread callback will now override the automatic use
1371 of &errno.)
1372 [Geoff Thorpe, with help from Bodo Moeller]
1373
1374 *) Initial support for different CRL issuing certificates. This covers a
1375 simple case where the self issued certificates in the chain exist and
1376 the real CRL issuer is higher in the existing chain.
1377
1378 This work was sponsored by Google.
1379 [Steve Henson]
1380
1381 *) Removed effectively defunct crypto/store from the build.
1382 [Ben Laurie]
1383
1384 *) Revamp of STACK to provide stronger type-checking. Still to come:
1385 TXT_DB, bsearch(?), OBJ_bsearch, qsort, CRYPTO_EX_DATA, ASN1_VALUE,
1386 ASN1_STRING, CONF_VALUE.
1387 [Ben Laurie]
1388
1389 *) Add a new SSL_MODE_RELEASE_BUFFERS mode flag to release unused buffer
1390 RAM on SSL connections. This option can save about 34k per idle SSL.
1391 [Nick Mathewson]
1392
1393 *) Revamp of LHASH to provide stronger type-checking. Still to come:
1394 STACK, TXT_DB, bsearch, qsort.
1395 [Ben Laurie]
1396
1397 *) Initial support for Cryptographic Message Syntax (aka CMS) based
1398 on RFC3850, RFC3851 and RFC3852. New cms directory and cms utility,
1399 support for data, signedData, compressedData, digestedData and
1400 encryptedData, envelopedData types included. Scripts to check against
1401 RFC4134 examples draft and interop and consistency checks of many
1402 content types and variants.
1403 [Steve Henson]
1404
1405 *) Add options to enc utility to support use of zlib compression BIO.
1406 [Steve Henson]
1407
1408 *) Extend mk1mf to support importing of options and assembly language
1409 files from Configure script, currently only included in VC-WIN32.
1410 The assembly language rules can now optionally generate the source
1411 files from the associated perl scripts.
1412 [Steve Henson]
1413
1414 *) Implement remaining functionality needed to support GOST ciphersuites.
1415 Interop testing has been performed using CryptoPro implementations.
1416 [Victor B. Wagner <vitus@cryptocom.ru>]
1417
1418 *) s390x assembler pack.
1419 [Andy Polyakov]
1420
1421 *) ARMv4 assembler pack. ARMv4 refers to v4 and later ISA, not CPU
1422 "family."
1423 [Andy Polyakov]
1424
1425 *) Implement Opaque PRF Input TLS extension as specified in
1426 draft-rescorla-tls-opaque-prf-input-00.txt. Since this is not an
1427 official specification yet and no extension type assignment by
1428 IANA exists, this extension (for now) will have to be explicitly
1429 enabled when building OpenSSL by providing the extension number
1430 to use. For example, specify an option
1431
1432 -DTLSEXT_TYPE_opaque_prf_input=0x9527
1433
1434 to the "config" or "Configure" script to enable the extension,
1435 assuming extension number 0x9527 (which is a completely arbitrary
1436 and unofficial assignment based on the MD5 hash of the Internet
1437 Draft). Note that by doing so, you potentially lose
1438 interoperability with other TLS implementations since these might
1439 be using the same extension number for other purposes.
1440
1441 SSL_set_tlsext_opaque_prf_input(ssl, src, len) is used to set the
1442 opaque PRF input value to use in the handshake. This will create
1443 an interal copy of the length-'len' string at 'src', and will
1444 return non-zero for success.
1445
1446 To get more control and flexibility, provide a callback function
1447 by using
1448
1449 SSL_CTX_set_tlsext_opaque_prf_input_callback(ctx, cb)
1450 SSL_CTX_set_tlsext_opaque_prf_input_callback_arg(ctx, arg)
1451
1452 where
1453
1454 int (*cb)(SSL *, void *peerinput, size_t len, void *arg);
1455 void *arg;
1456
1457 Callback function 'cb' will be called in handshakes, and is
1458 expected to use SSL_set_tlsext_opaque_prf_input() as appropriate.
1459 Argument 'arg' is for application purposes (the value as given to
1460 SSL_CTX_set_tlsext_opaque_prf_input_callback_arg() will directly
1461 be provided to the callback function). The callback function
1462 has to return non-zero to report success: usually 1 to use opaque
1463 PRF input just if possible, or 2 to enforce use of the opaque PRF
1464 input. In the latter case, the library will abort the handshake
1465 if opaque PRF input is not successfully negotiated.
1466
1467 Arguments 'peerinput' and 'len' given to the callback function
1468 will always be NULL and 0 in the case of a client. A server will
1469 see the client's opaque PRF input through these variables if
1470 available (NULL and 0 otherwise). Note that if the server
1471 provides an opaque PRF input, the length must be the same as the
1472 length of the client's opaque PRF input.
1473
1474 Note that the callback function will only be called when creating
1475 a new session (session resumption can resume whatever was
1476 previously negotiated), and will not be called in SSL 2.0
1477 handshakes; thus, SSL_CTX_set_options(ctx, SSL_OP_NO_SSLv2) or
1478 SSL_set_options(ssl, SSL_OP_NO_SSLv2) is especially recommended
1479 for applications that need to enforce opaque PRF input.
1480
1481 [Bodo Moeller]
1482
1483 *) Update ssl code to support digests other than SHA1+MD5 for handshake
1484 MAC.
1485
1486 [Victor B. Wagner <vitus@cryptocom.ru>]
1487
1488 *) Add RFC4507 support to OpenSSL. This includes the corrections in
1489 RFC4507bis. The encrypted ticket format is an encrypted encoded
1490 SSL_SESSION structure, that way new session features are automatically
1491 supported.
1492
1493 If a client application caches session in an SSL_SESSION structure
1494 support is transparent because tickets are now stored in the encoded
1495 SSL_SESSION.
1496
1497 The SSL_CTX structure automatically generates keys for ticket
1498 protection in servers so again support should be possible
1499 with no application modification.
1500
1501 If a client or server wishes to disable RFC4507 support then the option
1502 SSL_OP_NO_TICKET can be set.
1503
1504 Add a TLS extension debugging callback to allow the contents of any client
1505 or server extensions to be examined.
1506
1507 This work was sponsored by Google.
1508 [Steve Henson]
1509
1510 *) Final changes to avoid use of pointer pointer casts in OpenSSL.
1511 OpenSSL should now compile cleanly on gcc 4.2
1512 [Peter Hartley <pdh@utter.chaos.org.uk>, Steve Henson]
1513
1514 *) Update SSL library to use new EVP_PKEY MAC API. Include generic MAC
1515 support including streaming MAC support: this is required for GOST
1516 ciphersuite support.
1517 [Victor B. Wagner <vitus@cryptocom.ru>, Steve Henson]
1518
1519 *) Add option -stream to use PKCS#7 streaming in smime utility. New
1520 function i2d_PKCS7_bio_stream() and PEM_write_PKCS7_bio_stream()
1521 to output in BER and PEM format.
1522 [Steve Henson]
1523
1524 *) Experimental support for use of HMAC via EVP_PKEY interface. This
1525 allows HMAC to be handled via the EVP_DigestSign*() interface. The
1526 EVP_PKEY "key" in this case is the HMAC key, potentially allowing
1527 ENGINE support for HMAC keys which are unextractable. New -mac and
1528 -macopt options to dgst utility.
1529 [Steve Henson]
1530
1531 *) New option -sigopt to dgst utility. Update dgst to use
1532 EVP_Digest{Sign,Verify}*. These two changes make it possible to use
1533 alternative signing paramaters such as X9.31 or PSS in the dgst
1534 utility.
1535 [Steve Henson]
1536
1537 *) Change ssl_cipher_apply_rule(), the internal function that does
1538 the work each time a ciphersuite string requests enabling
1539 ("foo+bar"), moving ("+foo+bar"), disabling ("-foo+bar", or
1540 removing ("!foo+bar") a class of ciphersuites: Now it maintains
1541 the order of disabled ciphersuites such that those ciphersuites
1542 that most recently went from enabled to disabled not only stay
1543 in order with respect to each other, but also have higher priority
1544 than other disabled ciphersuites the next time ciphersuites are
1545 enabled again.
1546
1547 This means that you can now say, e.g., "PSK:-PSK:HIGH" to enable
1548 the same ciphersuites as with "HIGH" alone, but in a specific
1549 order where the PSK ciphersuites come first (since they are the
1550 most recently disabled ciphersuites when "HIGH" is parsed).
1551
1552 Also, change ssl_create_cipher_list() (using this new
1553 funcionality) such that between otherwise identical
1554 cihpersuites, ephemeral ECDH is preferred over ephemeral DH in
1555 the default order.
1556 [Bodo Moeller]
1557
1558 *) Change ssl_create_cipher_list() so that it automatically
1559 arranges the ciphersuites in reasonable order before starting
1560 to process the rule string. Thus, the definition for "DEFAULT"
1561 (SSL_DEFAULT_CIPHER_LIST) now is just "ALL:!aNULL:!eNULL", but
1562 remains equivalent to "AES:ALL:!aNULL:!eNULL:+aECDH:+kRSA:+RC4:@STRENGTH".
1563 This makes it much easier to arrive at a reasonable default order
1564 in applications for which anonymous ciphers are OK (meaning
1565 that you can't actually use DEFAULT).
1566 [Bodo Moeller; suggested by Victor Duchovni]
1567
1568 *) Split the SSL/TLS algorithm mask (as used for ciphersuite string
1569 processing) into multiple integers instead of setting
1570 "SSL_MKEY_MASK" bits, "SSL_AUTH_MASK" bits, "SSL_ENC_MASK",
1571 "SSL_MAC_MASK", and "SSL_SSL_MASK" bits all in a single integer.
1572 (These masks as well as the individual bit definitions are hidden
1573 away into the non-exported interface ssl/ssl_locl.h, so this
1574 change to the definition of the SSL_CIPHER structure shouldn't
1575 affect applications.) This give us more bits for each of these
1576 categories, so there is no longer a need to coagulate AES128 and
1577 AES256 into a single algorithm bit, and to coagulate Camellia128
1578 and Camellia256 into a single algorithm bit, which has led to all
1579 kinds of kludges.
1580
1581 Thus, among other things, the kludge introduced in 0.9.7m and
1582 0.9.8e for masking out AES256 independently of AES128 or masking
1583 out Camellia256 independently of AES256 is not needed here in 0.9.9.
1584
1585 With the change, we also introduce new ciphersuite aliases that
1586 so far were missing: "AES128", "AES256", "CAMELLIA128", and
1587 "CAMELLIA256".
1588 [Bodo Moeller]
1589
1590 *) Add support for dsa-with-SHA224 and dsa-with-SHA256.
1591 Use the leftmost N bytes of the signature input if the input is
1592 larger than the prime q (with N being the size in bytes of q).
1593 [Nils Larsch]
1594
1595 *) Very *very* experimental PKCS#7 streaming encoder support. Nothing uses
1596 it yet and it is largely untested.
1597 [Steve Henson]
1598
1599 *) Add support for the ecdsa-with-SHA224/256/384/512 signature types.
1600 [Nils Larsch]
1601
1602 *) Initial incomplete changes to avoid need for function casts in OpenSSL
1603 some compilers (gcc 4.2 and later) reject their use. Safestack is
1604 reimplemented. Update ASN1 to avoid use of legacy functions.
1605 [Steve Henson]
1606
1607 *) Win32/64 targets are linked with Winsock2.
1608 [Andy Polyakov]
1609
1610 *) Add an X509_CRL_METHOD structure to allow CRL processing to be redirected
1611 to external functions. This can be used to increase CRL handling
1612 efficiency especially when CRLs are very large by (for example) storing
1613 the CRL revoked certificates in a database.
1614 [Steve Henson]
1615
1616 *) Overhaul of by_dir code. Add support for dynamic loading of CRLs so
1617 new CRLs added to a directory can be used. New command line option
1618 -verify_return_error to s_client and s_server. This causes real errors
1619 to be returned by the verify callback instead of carrying on no matter
1620 what. This reflects the way a "real world" verify callback would behave.
1621 [Steve Henson]
1622
1623 *) GOST engine, supporting several GOST algorithms and public key formats.
1624 Kindly donated by Cryptocom.
1625 [Cryptocom]
1626
1627 *) Partial support for Issuing Distribution Point CRL extension. CRLs
1628 partitioned by DP are handled but no indirect CRL or reason partitioning
1629 (yet). Complete overhaul of CRL handling: now the most suitable CRL is
1630 selected via a scoring technique which handles IDP and AKID in CRLs.
1631 [Steve Henson]
1632
1633 *) New X509_STORE_CTX callbacks lookup_crls() and lookup_certs() which
1634 will ultimately be used for all verify operations: this will remove the
1635 X509_STORE dependency on certificate verification and allow alternative
1636 lookup methods. X509_STORE based implementations of these two callbacks.
1637 [Steve Henson]
1638
1639 *) Allow multiple CRLs to exist in an X509_STORE with matching issuer names.
1640 Modify get_crl() to find a valid (unexpired) CRL if possible.
1641 [Steve Henson]
1642
1643 *) New function X509_CRL_match() to check if two CRLs are identical. Normally
1644 this would be called X509_CRL_cmp() but that name is already used by
1645 a function that just compares CRL issuer names. Cache several CRL
1646 extensions in X509_CRL structure and cache CRLDP in X509.
1647 [Steve Henson]
1648
1649 *) Store a "canonical" representation of X509_NAME structure (ASN1 Name)
1650 this maps equivalent X509_NAME structures into a consistent structure.
1651 Name comparison can then be performed rapidly using memcmp().
1652 [Steve Henson]
1653
1654 *) Non-blocking OCSP request processing. Add -timeout option to ocsp
1655 utility.
1656 [Steve Henson]
1657
1658 *) Allow digests to supply their own micalg string for S/MIME type using
1659 the ctrl EVP_MD_CTRL_MICALG.
1660 [Steve Henson]
1661
1662 *) During PKCS7 signing pass the PKCS7 SignerInfo structure to the
1663 EVP_PKEY_METHOD before and after signing via the EVP_PKEY_CTRL_PKCS7_SIGN
1664 ctrl. It can then customise the structure before and/or after signing
1665 if necessary.
1666 [Steve Henson]
1667
1668 *) New function OBJ_add_sigid() to allow application defined signature OIDs
1669 to be added to OpenSSLs internal tables. New function OBJ_sigid_free()
1670 to free up any added signature OIDs.
1671 [Steve Henson]
1672
1673 *) New functions EVP_CIPHER_do_all(), EVP_CIPHER_do_all_sorted(),
1674 EVP_MD_do_all() and EVP_MD_do_all_sorted() to enumerate internal
1675 digest and cipher tables. New options added to openssl utility:
1676 list-message-digest-algorithms and list-cipher-algorithms.
1677 [Steve Henson]
1678
1679 *) Change the array representation of binary polynomials: the list
1680 of degrees of non-zero coefficients is now terminated with -1.
1681 Previously it was terminated with 0, which was also part of the
1682 value; thus, the array representation was not applicable to
1683 polynomials where t^0 has coefficient zero. This change makes
1684 the array representation useful in a more general context.
1685 [Douglas Stebila]
1686
1687 *) Various modifications and fixes to SSL/TLS cipher string
1688 handling. For ECC, the code now distinguishes between fixed ECDH
1689 with RSA certificates on the one hand and with ECDSA certificates
1690 on the other hand, since these are separate ciphersuites. The
1691 unused code for Fortezza ciphersuites has been removed.
1692
1693 For consistency with EDH, ephemeral ECDH is now called "EECDH"
1694 (not "ECDHE"). For consistency with the code for DH
1695 certificates, use of ECDH certificates is now considered ECDH
1696 authentication, not RSA or ECDSA authentication (the latter is
1697 merely the CA's signing algorithm and not actively used in the
1698 protocol).
1699
1700 The temporary ciphersuite alias "ECCdraft" is no longer
1701 available, and ECC ciphersuites are no longer excluded from "ALL"
1702 and "DEFAULT". The following aliases now exist for RFC 4492
1703 ciphersuites, most of these by analogy with the DH case:
1704
1705 kECDHr - ECDH cert, signed with RSA
1706 kECDHe - ECDH cert, signed with ECDSA
1707 kECDH - ECDH cert (signed with either RSA or ECDSA)
1708 kEECDH - ephemeral ECDH
1709 ECDH - ECDH cert or ephemeral ECDH
1710
1711 aECDH - ECDH cert
1712 aECDSA - ECDSA cert
1713 ECDSA - ECDSA cert
1714
1715 AECDH - anonymous ECDH
1716 EECDH - non-anonymous ephemeral ECDH (equivalent to "kEECDH:-AECDH")
1717
1718 [Bodo Moeller]
1719
1720 *) Add additional S/MIME capabilities for AES and GOST ciphers if supported.
1721 Use correct micalg parameters depending on digest(s) in signed message.
1722 [Steve Henson]
1723
1724 *) Add engine support for EVP_PKEY_ASN1_METHOD. Add functions to process
1725 an ENGINE asn1 method. Support ENGINE lookups in the ASN1 code.
1726 [Steve Henson]
1727
1728 *) Initial engine support for EVP_PKEY_METHOD. New functions to permit
1729 an engine to register a method. Add ENGINE lookups for methods and
1730 functional reference processing.
1731 [Steve Henson]
1732
1733 *) New functions EVP_Digest{Sign,Verify)*. These are enchance versions of
1734 EVP_{Sign,Verify}* which allow an application to customise the signature
1735 process.
1736 [Steve Henson]
1737
1738 *) New -resign option to smime utility. This adds one or more signers
1739 to an existing PKCS#7 signedData structure. Also -md option to use an
1740 alternative message digest algorithm for signing.
1741 [Steve Henson]
1742
1743 *) Tidy up PKCS#7 routines and add new functions to make it easier to
1744 create PKCS7 structures containing multiple signers. Update smime
1745 application to support multiple signers.
1746 [Steve Henson]
1747
1748 *) New -macalg option to pkcs12 utility to allow setting of an alternative
1749 digest MAC.
1750 [Steve Henson]
1751
1752 *) Initial support for PKCS#5 v2.0 PRFs other than default SHA1 HMAC.
1753 Reorganize PBE internals to lookup from a static table using NIDs,
1754 add support for HMAC PBE OID translation. Add a EVP_CIPHER ctrl:
1755 EVP_CTRL_PBE_PRF_NID this allows a cipher to specify an alternative
1756 PRF which will be automatically used with PBES2.
1757 [Steve Henson]
1758
1759 *) Replace the algorithm specific calls to generate keys in "req" with the
1760 new API.
1761 [Steve Henson]
1762
1763 *) Update PKCS#7 enveloped data routines to use new API. This is now
1764 supported by any public key method supporting the encrypt operation. A
1765 ctrl is added to allow the public key algorithm to examine or modify
1766 the PKCS#7 RecipientInfo structure if it needs to: for RSA this is
1767 a no op.
1768 [Steve Henson]
1769
1770 *) Add a ctrl to asn1 method to allow a public key algorithm to express
1771 a default digest type to use. In most cases this will be SHA1 but some
1772 algorithms (such as GOST) need to specify an alternative digest. The
1773 return value indicates how strong the prefernce is 1 means optional and
1774 2 is mandatory (that is it is the only supported type). Modify
1775 ASN1_item_sign() to accept a NULL digest argument to indicate it should
1776 use the default md. Update openssl utilities to use the default digest
1777 type for signing if it is not explicitly indicated.
1778 [Steve Henson]
1779
1780 *) Use OID cross reference table in ASN1_sign() and ASN1_verify(). New
1781 EVP_MD flag EVP_MD_FLAG_PKEY_METHOD_SIGNATURE. This uses the relevant
1782 signing method from the key type. This effectively removes the link
1783 between digests and public key types.
1784 [Steve Henson]
1785
1786 *) Add an OID cross reference table and utility functions. Its purpose is to
1787 translate between signature OIDs such as SHA1WithrsaEncryption and SHA1,
1788 rsaEncryption. This will allow some of the algorithm specific hackery
1789 needed to use the correct OID to be removed.
1790 [Steve Henson]
1791
1792 *) Remove algorithm specific dependencies when setting PKCS7_SIGNER_INFO
1793 structures for PKCS7_sign(). They are now set up by the relevant public
1794 key ASN1 method.
1795 [Steve Henson]
1796
1797 *) Add provisional EC pkey method with support for ECDSA and ECDH.
1798 [Steve Henson]
1799
1800 *) Add support for key derivation (agreement) in the API, DH method and
1801 pkeyutl.
1802 [Steve Henson]
1803
1804 *) Add DSA pkey method and DH pkey methods, extend DH ASN1 method to support
1805 public and private key formats. As a side effect these add additional
1806 command line functionality not previously available: DSA signatures can be
1807 generated and verified using pkeyutl and DH key support and generation in
1808 pkey, genpkey.
1809 [Steve Henson]
1810
1811 *) BeOS support.
1812 [Oliver Tappe <zooey@hirschkaefer.de>]
1813
1814 *) New make target "install_html_docs" installs HTML renditions of the
1815 manual pages.
1816 [Oliver Tappe <zooey@hirschkaefer.de>]
1817
1818 *) New utility "genpkey" this is analagous to "genrsa" etc except it can
1819 generate keys for any algorithm. Extend and update EVP_PKEY_METHOD to
1820 support key and parameter generation and add initial key generation
1821 functionality for RSA.
1822 [Steve Henson]
1823
1824 *) Add functions for main EVP_PKEY_method operations. The undocumented
1825 functions EVP_PKEY_{encrypt,decrypt} have been renamed to
1826 EVP_PKEY_{encrypt,decrypt}_old.
1827 [Steve Henson]
1828
1829 *) Initial definitions for EVP_PKEY_METHOD. This will be a high level public
1830 key API, doesn't do much yet.
1831 [Steve Henson]
1832
1833 *) New function EVP_PKEY_asn1_get0_info() to retrieve information about
1834 public key algorithms. New option to openssl utility:
1835 "list-public-key-algorithms" to print out info.
1836 [Steve Henson]
1837
1838 *) Implement the Supported Elliptic Curves Extension for
1839 ECC ciphersuites from draft-ietf-tls-ecc-12.txt.
1840 [Douglas Stebila]
1841
1842 *) Don't free up OIDs in OBJ_cleanup() if they are in use by EVP_MD or
1843 EVP_CIPHER structures to avoid later problems in EVP_cleanup().
1844 [Steve Henson]
1845
1846 *) New utilities pkey and pkeyparam. These are similar to algorithm specific
1847 utilities such as rsa, dsa, dsaparam etc except they process any key
1848 type.
1849 [Steve Henson]
1850
1851 *) Transfer public key printing routines to EVP_PKEY_ASN1_METHOD. New
1852 functions EVP_PKEY_print_public(), EVP_PKEY_print_private(),
1853 EVP_PKEY_print_param() to print public key data from an EVP_PKEY
1854 structure.
1855 [Steve Henson]
1856
1857 *) Initial support for pluggable public key ASN1.
1858 De-spaghettify the public key ASN1 handling. Move public and private
1859 key ASN1 handling to a new EVP_PKEY_ASN1_METHOD structure. Relocate
1860 algorithm specific handling to a single module within the relevant
1861 algorithm directory. Add functions to allow (near) opaque processing
1862 of public and private key structures.
1863 [Steve Henson]
1864
1865 *) Implement the Supported Point Formats Extension for
1866 ECC ciphersuites from draft-ietf-tls-ecc-12.txt.
1867 [Douglas Stebila]
1868
1869 *) Add initial support for RFC 4279 PSK TLS ciphersuites. Add members
1870 for the psk identity [hint] and the psk callback functions to the
1871 SSL_SESSION, SSL and SSL_CTX structure.
1872
1873 New ciphersuites:
1874 PSK-RC4-SHA, PSK-3DES-EDE-CBC-SHA, PSK-AES128-CBC-SHA,
1875 PSK-AES256-CBC-SHA
1876
1877 New functions:
1878 SSL_CTX_use_psk_identity_hint
1879 SSL_get_psk_identity_hint
1880 SSL_get_psk_identity
1881 SSL_use_psk_identity_hint
1882
1883 [Mika Kousa and Pasi Eronen of Nokia Corporation]
1884
1885 *) Add RFC 3161 compliant time stamp request creation, response generation
1886 and response verification functionality.
1887 [Zoltán Glózik <zglozik@opentsa.org>, The OpenTSA Project]
1888
1889 *) Add initial support for TLS extensions, specifically for the server_name
1890 extension so far. The SSL_SESSION, SSL_CTX, and SSL data structures now
1891 have new members for a host name. The SSL data structure has an
1892 additional member SSL_CTX *initial_ctx so that new sessions can be
1893 stored in that context to allow for session resumption, even after the
1894 SSL has been switched to a new SSL_CTX in reaction to a client's
1895 server_name extension.
1896
1897 New functions (subject to change):
1898
1899 SSL_get_servername()
1900 SSL_get_servername_type()
1901 SSL_set_SSL_CTX()
1902
1903 New CTRL codes and macros (subject to change):
1904
1905 SSL_CTRL_SET_TLSEXT_SERVERNAME_CB
1906 - SSL_CTX_set_tlsext_servername_callback()
1907 SSL_CTRL_SET_TLSEXT_SERVERNAME_ARG
1908 - SSL_CTX_set_tlsext_servername_arg()
1909 SSL_CTRL_SET_TLSEXT_HOSTNAME - SSL_set_tlsext_host_name()
1910
1911 openssl s_client has a new '-servername ...' option.
1912
1913 openssl s_server has new options '-servername_host ...', '-cert2 ...',
1914 '-key2 ...', '-servername_fatal' (subject to change). This allows
1915 testing the HostName extension for a specific single host name ('-cert'
1916 and '-key' remain fallbacks for handshakes without HostName
1917 negotiation). If the unrecogninzed_name alert has to be sent, this by
1918 default is a warning; it becomes fatal with the '-servername_fatal'
1919 option.
1920
1921 [Peter Sylvester, Remy Allais, Christophe Renou]
1922
1923 *) Whirlpool hash implementation is added.
1924 [Andy Polyakov]
1925
1926 *) BIGNUM code on 64-bit SPARCv9 targets is switched from bn(64,64) to
1927 bn(64,32). Because of instruction set limitations it doesn't have
1928 any negative impact on performance. This was done mostly in order
1929 to make it possible to share assembler modules, such as bn_mul_mont
1930 implementations, between 32- and 64-bit builds without hassle.
1931 [Andy Polyakov]
1932
1933 *) Move code previously exiled into file crypto/ec/ec2_smpt.c
1934 to ec2_smpl.c, and no longer require the OPENSSL_EC_BIN_PT_COMP
1935 macro.
1936 [Bodo Moeller]
1937
1938 *) New candidate for BIGNUM assembler implementation, bn_mul_mont,
1939 dedicated Montgomery multiplication procedure, is introduced.
1940 BN_MONT_CTX is modified to allow bn_mul_mont to reach for higher
1941 "64-bit" performance on certain 32-bit targets.
1942 [Andy Polyakov]
1943
1944 *) New option SSL_OP_NO_COMP to disable use of compression selectively
1945 in SSL structures. New SSL ctrl to set maximum send fragment size.
1946 Save memory by seeting the I/O buffer sizes dynamically instead of
1947 using the maximum available value.
1948 [Steve Henson]
1949
1950 *) New option -V for 'openssl ciphers'. This prints the ciphersuite code
1951 in addition to the text details.
1952 [Bodo Moeller]
1953
1954 *) Very, very preliminary EXPERIMENTAL support for printing of general
1955 ASN1 structures. This currently produces rather ugly output and doesn't
1956 handle several customised structures at all.
1957 [Steve Henson]
1958
1959 *) Integrated support for PVK file format and some related formats such
1960 as MS PUBLICKEYBLOB and PRIVATEKEYBLOB. Command line switches to support
1961 these in the 'rsa' and 'dsa' utilities.
1962 [Steve Henson]
1963
1964 *) Support for PKCS#1 RSAPublicKey format on rsa utility command line.
1965 [Steve Henson]
1966
1967 *) Remove the ancient ASN1_METHOD code. This was only ever used in one
1968 place for the (very old) "NETSCAPE" format certificates which are now
1969 handled using new ASN1 code equivalents.
1970 [Steve Henson]
1971
1972 *) Let the TLSv1_method() etc. functions return a 'const' SSL_METHOD
1973 pointer and make the SSL_METHOD parameter in SSL_CTX_new,
1974 SSL_CTX_set_ssl_version and SSL_set_ssl_method 'const'.
1975 [Nils Larsch]
1976
1977 *) Modify CRL distribution points extension code to print out previously
1978 unsupported fields. Enhance extension setting code to allow setting of
1979 all fields.
1980 [Steve Henson]
1981
1982 *) Add print and set support for Issuing Distribution Point CRL extension.
1983 [Steve Henson]
1984
1985 *) Change 'Configure' script to enable Camellia by default.
1986 [NTT]
1987
1988 Changes between 0.9.8m and 0.9.8n [24 Mar 2010]
1989
1990 *) When rejecting SSL/TLS records due to an incorrect version number, never
1991 update s->server with a new major version number. As of
1992 - OpenSSL 0.9.8m if 'short' is a 16-bit type,
1993 - OpenSSL 0.9.8f if 'short' is longer than 16 bits,
1994 the previous behavior could result in a read attempt at NULL when
1995 receiving specific incorrect SSL/TLS records once record payload
1996 protection is active. (CVE-2010-0740)
1997 [Bodo Moeller, Adam Langley <agl@chromium.org>]
1998
1999 *) Fix for CVE-2010-0433 where some kerberos enabled versions of OpenSSL
2000 could be crashed if the relevant tables were not present (e.g. chrooted).
2001 [Tomas Hoger <thoger@redhat.com>]
2002
2003 Changes between 0.9.8l and 0.9.8m [25 Feb 2010]
2004
2005 *) Always check bn_wexpend() return values for failure. (CVE-2009-3245)
2006 [Martin Olsson, Neel Mehta]
2007
2008 *) Fix X509_STORE locking: Every 'objs' access requires a lock (to
2009 accommodate for stack sorting, always a write lock!).
2010 [Bodo Moeller]
2011
2012 *) On some versions of WIN32 Heap32Next is very slow. This can cause
2013 excessive delays in the RAND_poll(): over a minute. As a workaround
2014 include a time check in the inner Heap32Next loop too.
2015 [Steve Henson]
2016
2017 *) The code that handled flushing of data in SSL/TLS originally used the
2018 BIO_CTRL_INFO ctrl to see if any data was pending first. This caused
2019 the problem outlined in PR#1949. The fix suggested there however can
2020 trigger problems with buggy BIO_CTRL_WPENDING (e.g. some versions
2021 of Apache). So instead simplify the code to flush unconditionally.
2022 This should be fine since flushing with no data to flush is a no op.
2023 [Steve Henson]
2024
2025 *) Handle TLS versions 2.0 and later properly and correctly use the
2026 highest version of TLS/SSL supported. Although TLS >= 2.0 is some way
2027 off ancient servers have a habit of sticking around for a while...
2028 [Steve Henson]
2029
2030 *) Modify compression code so it frees up structures without using the
2031 ex_data callbacks. This works around a problem where some applications
2032 call CRYPTO_cleanup_all_ex_data() before application exit (e.g. when
2033 restarting) then use compression (e.g. SSL with compression) later.
2034 This results in significant per-connection memory leaks and
2035 has caused some security issues including CVE-2008-1678 and
2036 CVE-2009-4355.
2037 [Steve Henson]
2038
2039 *) Constify crypto/cast (i.e., <openssl/cast.h>): a CAST_KEY doesn't
2040 change when encrypting or decrypting.
2041 [Bodo Moeller]
2042
2043 *) Add option SSL_OP_LEGACY_SERVER_CONNECT which will allow clients to
2044 connect and renegotiate with servers which do not support RI.
2045 Until RI is more widely deployed this option is enabled by default.
2046 [Steve Henson]
2047
2048 *) Add "missing" ssl ctrls to clear options and mode.
2049 [Steve Henson]
2050
2051 *) If client attempts to renegotiate and doesn't support RI respond with
2052 a no_renegotiation alert as required by RFC5746. Some renegotiating
2053 TLS clients will continue a connection gracefully when they receive
2054 the alert. Unfortunately OpenSSL mishandled this alert and would hang
2055 waiting for a server hello which it will never receive. Now we treat a
2056 received no_renegotiation alert as a fatal error. This is because
2057 applications requesting a renegotiation might well expect it to succeed
2058 and would have no code in place to handle the server denying it so the
2059 only safe thing to do is to terminate the connection.
2060 [Steve Henson]
2061
2062 *) Add ctrl macro SSL_get_secure_renegotiation_support() which returns 1 if
2063 peer supports secure renegotiation and 0 otherwise. Print out peer
2064 renegotiation support in s_client/s_server.
2065 [Steve Henson]
2066
2067 *) Replace the highly broken and deprecated SPKAC certification method with
2068 the updated NID creation version. This should correctly handle UTF8.
2069 [Steve Henson]
2070
2071 *) Implement RFC5746. Re-enable renegotiation but require the extension
2072 as needed. Unfortunately, SSL3_FLAGS_ALLOW_UNSAFE_LEGACY_RENEGOTIATION
2073 turns out to be a bad idea. It has been replaced by
2074 SSL_OP_ALLOW_UNSAFE_LEGACY_RENEGOTIATION which can be set with
2075 SSL_CTX_set_options(). This is really not recommended unless you
2076 know what you are doing.
2077 [Eric Rescorla <ekr@networkresonance.com>, Ben Laurie, Steve Henson]
2078
2079 *) Fixes to stateless session resumption handling. Use initial_ctx when
2080 issuing and attempting to decrypt tickets in case it has changed during
2081 servername handling. Use a non-zero length session ID when attempting
2082 stateless session resumption: this makes it possible to determine if
2083 a resumption has occurred immediately after receiving server hello
2084 (several places in OpenSSL subtly assume this) instead of later in
2085 the handshake.
2086 [Steve Henson]
2087
2088 *) The functions ENGINE_ctrl(), OPENSSL_isservice(),
2089 CMS_get1_RecipientRequest() and RAND_bytes() can return <=0 on error
2090 fixes for a few places where the return code is not checked
2091 correctly.
2092 [Julia Lawall <julia@diku.dk>]
2093
2094 *) Add --strict-warnings option to Configure script to include devteam
2095 warnings in other configurations.
2096 [Steve Henson]
2097
2098 *) Add support for --libdir option and LIBDIR variable in makefiles. This
2099 makes it possible to install openssl libraries in locations which
2100 have names other than "lib", for example "/usr/lib64" which some
2101 systems need.
2102 [Steve Henson, based on patch from Jeremy Utley]
2103
2104 *) Don't allow the use of leading 0x80 in OIDs. This is a violation of
2105 X690 8.9.12 and can produce some misleading textual output of OIDs.
2106 [Steve Henson, reported by Dan Kaminsky]
2107
2108 *) Delete MD2 from algorithm tables. This follows the recommendation in
2109 several standards that it is not used in new applications due to
2110 several cryptographic weaknesses. For binary compatibility reasons
2111 the MD2 API is still compiled in by default.
2112 [Steve Henson]
2113
2114 *) Add compression id to {d2i,i2d}_SSL_SESSION so it is correctly saved
2115 and restored.
2116 [Steve Henson]
2117
2118 *) Rename uni2asc and asc2uni functions to OPENSSL_uni2asc and
2119 OPENSSL_asc2uni conditionally on Netware platforms to avoid a name
2120 clash.
2121 [Guenter <lists@gknw.net>]
2122
2123 *) Fix the server certificate chain building code to use X509_verify_cert(),
2124 it used to have an ad-hoc builder which was unable to cope with anything
2125 other than a simple chain.
2126 [David Woodhouse <dwmw2@infradead.org>, Steve Henson]
2127
2128 *) Don't check self signed certificate signatures in X509_verify_cert()
2129 by default (a flag can override this): it just wastes time without
2130 adding any security. As a useful side effect self signed root CAs
2131 with non-FIPS digests are now usable in FIPS mode.
2132 [Steve Henson]
2133
2134 *) In dtls1_process_out_of_seq_message() the check if the current message
2135 is already buffered was missing. For every new message was memory
2136 allocated, allowing an attacker to perform an denial of service attack
2137 with sending out of seq handshake messages until there is no memory
2138 left. Additionally every future messege was buffered, even if the
2139 sequence number made no sense and would be part of another handshake.
2140 So only messages with sequence numbers less than 10 in advance will be
2141 buffered. (CVE-2009-1378)
2142 [Robin Seggelmann, discovered by Daniel Mentz]
2143
2144 *) Records are buffered if they arrive with a future epoch to be
2145 processed after finishing the corresponding handshake. There is
2146 currently no limitation to this buffer allowing an attacker to perform
2147 a DOS attack with sending records with future epochs until there is no
2148 memory left. This patch adds the pqueue_size() function to detemine
2149 the size of a buffer and limits the record buffer to 100 entries.
2150 (CVE-2009-1377)
2151 [Robin Seggelmann, discovered by Daniel Mentz]
2152
2153 *) Keep a copy of frag->msg_header.frag_len so it can be used after the
2154 parent structure is freed. (CVE-2009-1379)
2155 [Daniel Mentz]
2156
2157 *) Handle non-blocking I/O properly in SSL_shutdown() call.
2158 [Darryl Miles <darryl-mailinglists@netbauds.net>]
2159
2160 *) Add 2.5.4.* OIDs
2161 [Ilya O. <vrghost@gmail.com>]
2162
2163 Changes between 0.9.8k and 0.9.8l [5 Nov 2009]
2164
2165 *) Disable renegotiation completely - this fixes a severe security
2166 problem (CVE-2009-3555) at the cost of breaking all
2167 renegotiation. Renegotiation can be re-enabled by setting
2168 SSL3_FLAGS_ALLOW_UNSAFE_LEGACY_RENEGOTIATION in s3->flags at
2169 run-time. This is really not recommended unless you know what
2170 you're doing.
2171 [Ben Laurie]
2172
2173 Changes between 0.9.8j and 0.9.8k [25 Mar 2009]
2174
2175 *) Don't set val to NULL when freeing up structures, it is freed up by
2176 underlying code. If sizeof(void *) > sizeof(long) this can result in
2177 zeroing past the valid field. (CVE-2009-0789)
2178 [Paolo Ganci <Paolo.Ganci@AdNovum.CH>]
2179
2180 *) Fix bug where return value of CMS_SignerInfo_verify_content() was not
2181 checked correctly. This would allow some invalid signed attributes to
2182 appear to verify correctly. (CVE-2009-0591)
2183 [Ivan Nestlerode <inestlerode@us.ibm.com>]
2184
2185 *) Reject UniversalString and BMPString types with invalid lengths. This
2186 prevents a crash in ASN1_STRING_print_ex() which assumes the strings have
2187 a legal length. (CVE-2009-0590)
2188 [Steve Henson]
2189
2190 *) Set S/MIME signing as the default purpose rather than setting it
2191 unconditionally. This allows applications to override it at the store
2192 level.
2193 [Steve Henson]
2194
2195 *) Permit restricted recursion of ASN1 strings. This is needed in practice
2196 to handle some structures.
2197 [Steve Henson]
2198
2199 *) Improve efficiency of mem_gets: don't search whole buffer each time
2200 for a '\n'
2201 [Jeremy Shapiro <jnshapir@us.ibm.com>]
2202
2203 *) New -hex option for openssl rand.
2204 [Matthieu Herrb]
2205
2206 *) Print out UTF8String and NumericString when parsing ASN1.
2207 [Steve Henson]
2208
2209 *) Support NumericString type for name components.
2210 [Steve Henson]
2211
2212 *) Allow CC in the environment to override the automatically chosen
2213 compiler. Note that nothing is done to ensure flags work with the
2214 chosen compiler.
2215 [Ben Laurie]
2216
2217 Changes between 0.9.8i and 0.9.8j [07 Jan 2009]
2218
2219 *) Properly check EVP_VerifyFinal() and similar return values
2220 (CVE-2008-5077).
2221 [Ben Laurie, Bodo Moeller, Google Security Team]
2222
2223 *) Enable TLS extensions by default.
2224 [Ben Laurie]
2225
2226 *) Allow the CHIL engine to be loaded, whether the application is
2227 multithreaded or not. (This does not release the developer from the
2228 obligation to set up the dynamic locking callbacks.)
2229 [Sander Temme <sander@temme.net>]
2230
2231 *) Use correct exit code if there is an error in dgst command.
2232 [Steve Henson; problem pointed out by Roland Dirlewanger]
2233
2234 *) Tweak Configure so that you need to say "experimental-jpake" to enable
2235 JPAKE, and need to use -DOPENSSL_EXPERIMENTAL_JPAKE in applications.
2236 [Bodo Moeller]
2237
2238 *) Add experimental JPAKE support, including demo authentication in
2239 s_client and s_server.
2240 [Ben Laurie]
2241
2242 *) Set the comparison function in v3_addr_canonize().
2243 [Rob Austein <sra@hactrn.net>]
2244
2245 *) Add support for XMPP STARTTLS in s_client.
2246 [Philip Paeps <philip@freebsd.org>]
2247
2248 *) Change the server-side SSL_OP_NETSCAPE_REUSE_CIPHER_CHANGE_BUG behavior
2249 to ensure that even with this option, only ciphersuites in the
2250 server's preference list will be accepted. (Note that the option
2251 applies only when resuming a session, so the earlier behavior was
2252 just about the algorithm choice for symmetric cryptography.)
2253 [Bodo Moeller]
2254
2255 Changes between 0.9.8h and 0.9.8i [15 Sep 2008]
2256
2257 *) Fix NULL pointer dereference if a DTLS server received
2258 ChangeCipherSpec as first record (CVE-2009-1386).
2259 [PR #1679]
2260
2261 *) Fix a state transitition in s3_srvr.c and d1_srvr.c
2262 (was using SSL3_ST_CW_CLNT_HELLO_B, should be ..._ST_SW_SRVR_...).
2263 [Nagendra Modadugu]
2264
2265 *) The fix in 0.9.8c that supposedly got rid of unsafe
2266 double-checked locking was incomplete for RSA blinding,
2267 addressing just one layer of what turns out to have been
2268 doubly unsafe triple-checked locking.
2269
2270 So now fix this for real by retiring the MONT_HELPER macro
2271 in crypto/rsa/rsa_eay.c.
2272
2273 [Bodo Moeller; problem pointed out by Marius Schilder]
2274
2275 *) Various precautionary measures:
2276
2277 - Avoid size_t integer overflow in HASH_UPDATE (md32_common.h).
2278
2279 - Avoid a buffer overflow in d2i_SSL_SESSION() (ssl_asn1.c).
2280 (NB: This would require knowledge of the secret session ticket key
2281 to exploit, in which case you'd be SOL either way.)
2282
2283 - Change bn_nist.c so that it will properly handle input BIGNUMs
2284 outside the expected range.
2285
2286 - Enforce the 'num' check in BN_div() (bn_div.c) for non-BN_DEBUG
2287 builds.
2288
2289 [Neel Mehta, Bodo Moeller]
2290
2291 *) Allow engines to be "soft loaded" - i.e. optionally don't die if
2292 the load fails. Useful for distros.
2293 [Ben Laurie and the FreeBSD team]
2294
2295 *) Add support for Local Machine Keyset attribute in PKCS#12 files.
2296 [Steve Henson]
2297
2298 *) Fix BN_GF2m_mod_arr() top-bit cleanup code.
2299 [Huang Ying]
2300
2301 *) Expand ENGINE to support engine supplied SSL client certificate functions.
2302
2303 This work was sponsored by Logica.
2304 [Steve Henson]
2305
2306 *) Add CryptoAPI ENGINE to support use of RSA and DSA keys held in Windows
2307 keystores. Support for SSL/TLS client authentication too.
2308 Not compiled unless enable-capieng specified to Configure.
2309
2310 This work was sponsored by Logica.
2311 [Steve Henson]
2312
2313 *) Fix bug in X509_ATTRIBUTE creation: dont set attribute using
2314 ASN1_TYPE_set1 if MBSTRING flag set. This bug would crash certain
2315 attribute creation routines such as certifcate requests and PKCS#12
2316 files.
2317 [Steve Henson]
2318
2319 Changes between 0.9.8g and 0.9.8h [28 May 2008]
2320
2321 *) Fix flaw if 'Server Key exchange message' is omitted from a TLS
2322 handshake which could lead to a cilent crash as found using the
2323 Codenomicon TLS test suite (CVE-2008-1672)
2324 [Steve Henson, Mark Cox]
2325
2326 *) Fix double free in TLS server name extensions which could lead to
2327 a remote crash found by Codenomicon TLS test suite (CVE-2008-0891)
2328 [Joe Orton]
2329
2330 *) Clear error queue in SSL_CTX_use_certificate_chain_file()
2331
2332 Clear the error queue to ensure that error entries left from
2333 older function calls do not interfere with the correct operation.
2334 [Lutz Jaenicke, Erik de Castro Lopo]
2335
2336 *) Remove root CA certificates of commercial CAs:
2337
2338 The OpenSSL project does not recommend any specific CA and does not
2339 have any policy with respect to including or excluding any CA.
2340 Therefore it does not make any sense to ship an arbitrary selection
2341 of root CA certificates with the OpenSSL software.
2342 [Lutz Jaenicke]
2343
2344 *) RSA OAEP patches to fix two separate invalid memory reads.
2345 The first one involves inputs when 'lzero' is greater than
2346 'SHA_DIGEST_LENGTH' (it would read about SHA_DIGEST_LENGTH bytes
2347 before the beginning of from). The second one involves inputs where
2348 the 'db' section contains nothing but zeroes (there is a one-byte
2349 invalid read after the end of 'db').
2350 [Ivan Nestlerode <inestlerode@us.ibm.com>]
2351
2352 *) Partial backport from 0.9.9-dev:
2353
2354 Introduce bn_mul_mont (dedicated Montgomery multiplication
2355 procedure) as a candidate for BIGNUM assembler implementation.
2356 While 0.9.9-dev uses assembler for various architectures, only
2357 x86_64 is available by default here in the 0.9.8 branch, and
2358 32-bit x86 is available through a compile-time setting.
2359
2360 To try the 32-bit x86 assembler implementation, use Configure
2361 option "enable-montasm" (which exists only for this backport).
2362
2363 As "enable-montasm" for 32-bit x86 disclaims code stability
2364 anyway, in this constellation we activate additional code
2365 backported from 0.9.9-dev for further performance improvements,
2366 namely BN_from_montgomery_word. (To enable this otherwise,
2367 e.g. x86_64, try "-DMONT_FROM_WORD___NON_DEFAULT_0_9_8_BUILD".)
2368
2369 [Andy Polyakov (backport partially by Bodo Moeller)]
2370
2371 *) Add TLS session ticket callback. This allows an application to set
2372 TLS ticket cipher and HMAC keys rather than relying on hardcoded fixed
2373 values. This is useful for key rollover for example where several key
2374 sets may exist with different names.
2375 [Steve Henson]
2376
2377 *) Reverse ENGINE-internal logic for caching default ENGINE handles.
2378 This was broken until now in 0.9.8 releases, such that the only way
2379 a registered ENGINE could be used (assuming it initialises
2380 successfully on the host) was to explicitly set it as the default
2381 for the relevant algorithms. This is in contradiction with 0.9.7
2382 behaviour and the documentation. With this fix, when an ENGINE is
2383 registered into a given algorithm's table of implementations, the
2384 'uptodate' flag is reset so that auto-discovery will be used next
2385 time a new context for that algorithm attempts to select an
2386 implementation.
2387 [Ian Lister (tweaked by Geoff Thorpe)]
2388
2389 *) Backport of CMS code to OpenSSL 0.9.8. This differs from the 0.9.9
2390 implemention in the following ways:
2391
2392 Lack of EVP_PKEY_ASN1_METHOD means algorithm parameters have to be
2393 hard coded.
2394
2395 Lack of BER streaming support means one pass streaming processing is
2396 only supported if data is detached: setting the streaming flag is
2397 ignored for embedded content.
2398
2399 CMS support is disabled by default and must be explicitly enabled
2400 with the enable-cms configuration option.
2401 [Steve Henson]
2402
2403 *) Update the GMP engine glue to do direct copies between BIGNUM and
2404 mpz_t when openssl and GMP use the same limb size. Otherwise the
2405 existing "conversion via a text string export" trick is still used.
2406 [Paul Sheer <paulsheer@gmail.com>]
2407
2408 *) Zlib compression BIO. This is a filter BIO which compressed and
2409 uncompresses any data passed through it.
2410 [Steve Henson]
2411
2412 *) Add AES_wrap_key() and AES_unwrap_key() functions to implement
2413 RFC3394 compatible AES key wrapping.
2414 [Steve Henson]
2415
2416 *) Add utility functions to handle ASN1 structures. ASN1_STRING_set0():
2417 sets string data without copying. X509_ALGOR_set0() and
2418 X509_ALGOR_get0(): set and retrieve X509_ALGOR (AlgorithmIdentifier)
2419 data. Attribute function X509at_get0_data_by_OBJ(): retrieves data
2420 from an X509_ATTRIBUTE structure optionally checking it occurs only
2421 once. ASN1_TYPE_set1(): set and ASN1_TYPE structure copying supplied
2422 data.
2423 [Steve Henson]
2424
2425 *) Fix BN flag handling in RSA_eay_mod_exp() and BN_MONT_CTX_set()
2426 to get the expected BN_FLG_CONSTTIME behavior.
2427 [Bodo Moeller (Google)]
2428
2429 *) Netware support:
2430
2431 - fixed wrong usage of ioctlsocket() when build for LIBC BSD sockets
2432 - fixed do_tests.pl to run the test suite with CLIB builds too (CLIB_OPT)
2433 - added some more tests to do_tests.pl
2434 - fixed RunningProcess usage so that it works with newer LIBC NDKs too
2435 - removed usage of BN_LLONG for CLIB builds to avoid runtime dependency
2436 - added new Configure targets netware-clib-bsdsock, netware-clib-gcc,
2437 netware-clib-bsdsock-gcc, netware-libc-bsdsock-gcc
2438 - various changes to netware.pl to enable gcc-cross builds on Win32
2439 platform
2440 - changed crypto/bio/b_sock.c to work with macro functions (CLIB BSD)
2441 - various changes to fix missing prototype warnings
2442 - fixed x86nasm.pl to create correct asm files for NASM COFF output
2443 - added AES, WHIRLPOOL and CPUID assembler code to build files
2444 - added missing AES assembler make rules to mk1mf.pl
2445 - fixed order of includes in apps/ocsp.c so that e_os.h settings apply
2446 [Guenter Knauf <eflash@gmx.net>]
2447
2448 *) Implement certificate status request TLS extension defined in RFC3546.
2449 A client can set the appropriate parameters and receive the encoded
2450 OCSP response via a callback. A server can query the supplied parameters
2451 and set the encoded OCSP response in the callback. Add simplified examples
2452 to s_client and s_server.
2453 [Steve Henson]
2454
2455 Changes between 0.9.8f and 0.9.8g [19 Oct 2007]
2456
2457 *) Fix various bugs:
2458 + Binary incompatibility of ssl_ctx_st structure
2459 + DTLS interoperation with non-compliant servers
2460 + Don't call get_session_cb() without proposed session
2461 + Fix ia64 assembler code
2462 [Andy Polyakov, Steve Henson]
2463
2464 Changes between 0.9.8e and 0.9.8f [11 Oct 2007]
2465
2466 *) DTLS Handshake overhaul. There were longstanding issues with
2467 OpenSSL DTLS implementation, which were making it impossible for
2468 RFC 4347 compliant client to communicate with OpenSSL server.
2469 Unfortunately just fixing these incompatibilities would "cut off"
2470 pre-0.9.8f clients. To allow for hassle free upgrade post-0.9.8e
2471 server keeps tolerating non RFC compliant syntax. The opposite is
2472 not true, 0.9.8f client can not communicate with earlier server.
2473 This update even addresses CVE-2007-4995.
2474 [Andy Polyakov]
2475
2476 *) Changes to avoid need for function casts in OpenSSL: some compilers
2477 (gcc 4.2 and later) reject their use.
2478 [Kurt Roeckx <kurt@roeckx.be>, Peter Hartley <pdh@utter.chaos.org.uk>,
2479 Steve Henson]
2480
2481 *) Add RFC4507 support to OpenSSL. This includes the corrections in
2482 RFC4507bis. The encrypted ticket format is an encrypted encoded
2483 SSL_SESSION structure, that way new session features are automatically
2484 supported.
2485
2486 If a client application caches session in an SSL_SESSION structure
2487 support is transparent because tickets are now stored in the encoded
2488 SSL_SESSION.
2489
2490 The SSL_CTX structure automatically generates keys for ticket
2491 protection in servers so again support should be possible
2492 with no application modification.
2493
2494 If a client or server wishes to disable RFC4507 support then the option
2495 SSL_OP_NO_TICKET can be set.
2496
2497 Add a TLS extension debugging callback to allow the contents of any client
2498 or server extensions to be examined.
2499
2500 This work was sponsored by Google.
2501 [Steve Henson]
2502
2503 *) Add initial support for TLS extensions, specifically for the server_name
2504 extension so far. The SSL_SESSION, SSL_CTX, and SSL data structures now
2505 have new members for a host name. The SSL data structure has an
2506 additional member SSL_CTX *initial_ctx so that new sessions can be
2507 stored in that context to allow for session resumption, even after the
2508 SSL has been switched to a new SSL_CTX in reaction to a client's
2509 server_name extension.
2510
2511 New functions (subject to change):
2512
2513 SSL_get_servername()
2514 SSL_get_servername_type()
2515 SSL_set_SSL_CTX()
2516
2517 New CTRL codes and macros (subject to change):
2518
2519 SSL_CTRL_SET_TLSEXT_SERVERNAME_CB
2520 - SSL_CTX_set_tlsext_servername_callback()
2521 SSL_CTRL_SET_TLSEXT_SERVERNAME_ARG
2522 - SSL_CTX_set_tlsext_servername_arg()
2523 SSL_CTRL_SET_TLSEXT_HOSTNAME - SSL_set_tlsext_host_name()
2524
2525 openssl s_client has a new '-servername ...' option.
2526
2527 openssl s_server has new options '-servername_host ...', '-cert2 ...',
2528 '-key2 ...', '-servername_fatal' (subject to change). This allows
2529 testing the HostName extension for a specific single host name ('-cert'
2530 and '-key' remain fallbacks for handshakes without HostName
2531 negotiation). If the unrecogninzed_name alert has to be sent, this by
2532 default is a warning; it becomes fatal with the '-servername_fatal'
2533 option.
2534
2535 [Peter Sylvester, Remy Allais, Christophe Renou, Steve Henson]
2536
2537 *) Add AES and SSE2 assembly language support to VC++ build.
2538 [Steve Henson]
2539
2540 *) Mitigate attack on final subtraction in Montgomery reduction.
2541 [Andy Polyakov]
2542
2543 *) Fix crypto/ec/ec_mult.c to work properly with scalars of value 0
2544 (which previously caused an internal error).
2545 [Bodo Moeller]
2546
2547 *) Squeeze another 10% out of IGE mode when in != out.
2548 [Ben Laurie]
2549
2550 *) AES IGE mode speedup.
2551 [Dean Gaudet (Google)]
2552
2553 *) Add the Korean symmetric 128-bit cipher SEED (see
2554 http://www.kisa.or.kr/kisa/seed/jsp/seed_eng.jsp) and
2555 add SEED ciphersuites from RFC 4162:
2556
2557 TLS_RSA_WITH_SEED_CBC_SHA = "SEED-SHA"
2558 TLS_DHE_DSS_WITH_SEED_CBC_SHA = "DHE-DSS-SEED-SHA"
2559 TLS_DHE_RSA_WITH_SEED_CBC_SHA = "DHE-RSA-SEED-SHA"
2560 TLS_DH_anon_WITH_SEED_CBC_SHA = "ADH-SEED-SHA"
2561
2562 To minimize changes between patchlevels in the OpenSSL 0.9.8
2563 series, SEED remains excluded from compilation unless OpenSSL
2564 is configured with 'enable-seed'.
2565 [KISA, Bodo Moeller]
2566
2567 *) Mitigate branch prediction attacks, which can be practical if a
2568 single processor is shared, allowing a spy process to extract
2569 information. For detailed background information, see
2570 http://eprint.iacr.org/2007/039 (O. Aciicmez, S. Gueron,
2571 J.-P. Seifert, "New Branch Prediction Vulnerabilities in OpenSSL
2572 and Necessary Software Countermeasures"). The core of the change
2573 are new versions BN_div_no_branch() and
2574 BN_mod_inverse_no_branch() of BN_div() and BN_mod_inverse(),
2575 respectively, which are slower, but avoid the security-relevant
2576 conditional branches. These are automatically called by BN_div()
2577 and BN_mod_inverse() if the flag BN_FLG_CONSTTIME is set for one
2578 of the input BIGNUMs. Also, BN_is_bit_set() has been changed to
2579 remove a conditional branch.
2580
2581 BN_FLG_CONSTTIME is the new name for the previous
2582 BN_FLG_EXP_CONSTTIME flag, since it now affects more than just
2583 modular exponentiation. (Since OpenSSL 0.9.7h, setting this flag
2584 in the exponent causes BN_mod_exp_mont() to use the alternative
2585 implementation in BN_mod_exp_mont_consttime().) The old name
2586 remains as a deprecated alias.
2587
2588 Similary, RSA_FLAG_NO_EXP_CONSTTIME is replaced by a more general
2589 RSA_FLAG_NO_CONSTTIME flag since the RSA implementation now uses
2590 constant-time implementations for more than just exponentiation.
2591 Here too the old name is kept as a deprecated alias.
2592
2593 BN_BLINDING_new() will now use BN_dup() for the modulus so that
2594 the BN_BLINDING structure gets an independent copy of the
2595 modulus. This means that the previous "BIGNUM *m" argument to
2596 BN_BLINDING_new() and to BN_BLINDING_create_param() now
2597 essentially becomes "const BIGNUM *m", although we can't actually
2598 change this in the header file before 0.9.9. It allows
2599 RSA_setup_blinding() to use BN_with_flags() on the modulus to
2600 enable BN_FLG_CONSTTIME.
2601
2602 [Matthew D Wood (Intel Corp)]
2603
2604 *) In the SSL/TLS server implementation, be strict about session ID
2605 context matching (which matters if an application uses a single
2606 external cache for different purposes). Previously,
2607 out-of-context reuse was forbidden only if SSL_VERIFY_PEER was
2608 set. This did ensure strict client verification, but meant that,
2609 with applications using a single external cache for quite
2610 different requirements, clients could circumvent ciphersuite
2611 restrictions for a given session ID context by starting a session
2612 in a different context.
2613 [Bodo Moeller]
2614
2615 *) Include "!eNULL" in SSL_DEFAULT_CIPHER_LIST to make sure that
2616 a ciphersuite string such as "DEFAULT:RSA" cannot enable
2617 authentication-only ciphersuites.
2618 [Bodo Moeller]
2619
2620 *) Update the SSL_get_shared_ciphers() fix CVE-2006-3738 which was
2621 not complete and could lead to a possible single byte overflow
2622 (CVE-2007-5135) [Ben Laurie]
2623
2624 Changes between 0.9.8d and 0.9.8e [23 Feb 2007]
2625
2626 *) Since AES128 and AES256 (and similarly Camellia128 and
2627 Camellia256) share a single mask bit in the logic of
2628 ssl/ssl_ciph.c, the code for masking out disabled ciphers needs a
2629 kludge to work properly if AES128 is available and AES256 isn't
2630 (or if Camellia128 is available and Camellia256 isn't).
2631 [Victor Duchovni]
2632
2633 *) Fix the BIT STRING encoding generated by crypto/ec/ec_asn1.c
2634 (within i2d_ECPrivateKey, i2d_ECPKParameters, i2d_ECParameters):
2635 When a point or a seed is encoded in a BIT STRING, we need to
2636 prevent the removal of trailing zero bits to get the proper DER
2637 encoding. (By default, crypto/asn1/a_bitstr.c assumes the case
2638 of a NamedBitList, for which trailing 0 bits need to be removed.)
2639 [Bodo Moeller]
2640
2641 *) Have SSL/TLS server implementation tolerate "mismatched" record
2642 protocol version while receiving ClientHello even if the
2643 ClientHello is fragmented. (The server can't insist on the
2644 particular protocol version it has chosen before the ServerHello
2645 message has informed the client about his choice.)
2646 [Bodo Moeller]
2647
2648 *) Add RFC 3779 support.
2649 [Rob Austein for ARIN, Ben Laurie]
2650
2651 *) Load error codes if they are not already present instead of using a
2652 static variable. This allows them to be cleanly unloaded and reloaded.
2653 Improve header file function name parsing.
2654 [Steve Henson]
2655
2656 *) extend SMTP and IMAP protocol emulation in s_client to use EHLO
2657 or CAPABILITY handshake as required by RFCs.
2658 [Goetz Babin-Ebell]
2659
2660 Changes between 0.9.8c and 0.9.8d [28 Sep 2006]
2661
2662 *) Introduce limits to prevent malicious keys being able to
2663 cause a denial of service. (CVE-2006-2940)
2664 [Steve Henson, Bodo Moeller]
2665
2666 *) Fix ASN.1 parsing of certain invalid structures that can result
2667 in a denial of service. (CVE-2006-2937) [Steve Henson]
2668
2669 *) Fix buffer overflow in SSL_get_shared_ciphers() function.
2670 (CVE-2006-3738) [Tavis Ormandy and Will Drewry, Google Security Team]
2671
2672 *) Fix SSL client code which could crash if connecting to a
2673 malicious SSLv2 server. (CVE-2006-4343)
2674 [Tavis Ormandy and Will Drewry, Google Security Team]
2675
2676 *) Since 0.9.8b, ciphersuite strings naming explicit ciphersuites
2677 match only those. Before that, "AES256-SHA" would be interpreted
2678 as a pattern and match "AES128-SHA" too (since AES128-SHA got
2679 the same strength classification in 0.9.7h) as we currently only
2680 have a single AES bit in the ciphersuite description bitmap.
2681 That change, however, also applied to ciphersuite strings such as
2682 "RC4-MD5" that intentionally matched multiple ciphersuites --
2683 namely, SSL 2.0 ciphersuites in addition to the more common ones
2684 from SSL 3.0/TLS 1.0.
2685
2686 So we change the selection algorithm again: Naming an explicit
2687 ciphersuite selects this one ciphersuite, and any other similar
2688 ciphersuite (same bitmap) from *other* protocol versions.
2689 Thus, "RC4-MD5" again will properly select both the SSL 2.0
2690 ciphersuite and the SSL 3.0/TLS 1.0 ciphersuite.
2691
2692 Since SSL 2.0 does not have any ciphersuites for which the
2693 128/256 bit distinction would be relevant, this works for now.
2694 The proper fix will be to use different bits for AES128 and
2695 AES256, which would have avoided the problems from the beginning;
2696 however, bits are scarce, so we can only do this in a new release
2697 (not just a patchlevel) when we can change the SSL_CIPHER
2698 definition to split the single 'unsigned long mask' bitmap into
2699 multiple values to extend the available space.
2700
2701 [Bodo Moeller]
2702
2703 Changes between 0.9.8b and 0.9.8c [05 Sep 2006]
2704
2705 *) Avoid PKCS #1 v1.5 signature attack discovered by Daniel Bleichenbacher
2706 (CVE-2006-4339) [Ben Laurie and Google Security Team]
2707
2708 *) Add AES IGE and biIGE modes.
2709 [Ben Laurie]
2710
2711 *) Change the Unix randomness entropy gathering to use poll() when
2712 possible instead of select(), since the latter has some
2713 undesirable limitations.
2714 [Darryl Miles via Richard Levitte and Bodo Moeller]
2715
2716 *) Disable "ECCdraft" ciphersuites more thoroughly. Now special
2717 treatment in ssl/ssl_ciph.s makes sure that these ciphersuites
2718 cannot be implicitly activated as part of, e.g., the "AES" alias.
2719 However, please upgrade to OpenSSL 0.9.9[-dev] for
2720 non-experimental use of the ECC ciphersuites to get TLS extension
2721 support, which is required for curve and point format negotiation
2722 to avoid potential handshake problems.
2723 [Bodo Moeller]
2724
2725 *) Disable rogue ciphersuites:
2726
2727 - SSLv2 0x08 0x00 0x80 ("RC4-64-MD5")
2728 - SSLv3/TLSv1 0x00 0x61 ("EXP1024-RC2-CBC-MD5")
2729 - SSLv3/TLSv1 0x00 0x60 ("EXP1024-RC4-MD5")
2730
2731 The latter two were purportedly from
2732 draft-ietf-tls-56-bit-ciphersuites-0[01].txt, but do not really
2733 appear there.
2734
2735 Also deactivate the remaining ciphersuites from
2736 draft-ietf-tls-56-bit-ciphersuites-01.txt. These are just as
2737 unofficial, and the ID has long expired.
2738 [Bodo Moeller]
2739
2740 *) Fix RSA blinding Heisenbug (problems sometimes occured on
2741 dual-core machines) and other potential thread-safety issues.
2742 [Bodo Moeller]
2743
2744 *) Add the symmetric cipher Camellia (128-bit, 192-bit, 256-bit key
2745 versions), which is now available for royalty-free use
2746 (see http://info.isl.ntt.co.jp/crypt/eng/info/chiteki.html).
2747 Also, add Camellia TLS ciphersuites from RFC 4132.
2748
2749 To minimize changes between patchlevels in the OpenSSL 0.9.8
2750 series, Camellia remains excluded from compilation unless OpenSSL
2751 is configured with 'enable-camellia'.
2752 [NTT]
2753
2754 *) Disable the padding bug check when compression is in use. The padding
2755 bug check assumes the first packet is of even length, this is not
2756 necessarily true if compresssion is enabled and can result in false
2757 positives causing handshake failure. The actual bug test is ancient
2758 code so it is hoped that implementations will either have fixed it by
2759 now or any which still have the bug do not support compression.
2760 [Steve Henson]
2761
2762 Changes between 0.9.8a and 0.9.8b [04 May 2006]
2763
2764 *) When applying a cipher rule check to see if string match is an explicit
2765 cipher suite and only match that one cipher suite if it is.
2766 [Steve Henson]
2767
2768 *) Link in manifests for VC++ if needed.
2769 [Austin Ziegler <halostatue@gmail.com>]
2770
2771 *) Update support for ECC-based TLS ciphersuites according to
2772 draft-ietf-tls-ecc-12.txt with proposed changes (but without
2773 TLS extensions, which are supported starting with the 0.9.9
2774 branch, not in the OpenSSL 0.9.8 branch).
2775 [Douglas Stebila]
2776
2777 *) New functions EVP_CIPHER_CTX_new() and EVP_CIPHER_CTX_free() to support
2778 opaque EVP_CIPHER_CTX handling.
2779 [Steve Henson]
2780
2781 *) Fixes and enhancements to zlib compression code. We now only use
2782 "zlib1.dll" and use the default __cdecl calling convention on Win32
2783 to conform with the standards mentioned here:
2784 http://www.zlib.net/DLL_FAQ.txt
2785 Static zlib linking now works on Windows and the new --with-zlib-include
2786 --with-zlib-lib options to Configure can be used to supply the location
2787 of the headers and library. Gracefully handle case where zlib library
2788 can't be loaded.
2789 [Steve Henson]
2790
2791 *) Several fixes and enhancements to the OID generation code. The old code
2792 sometimes allowed invalid OIDs (1.X for X >= 40 for example), couldn't
2793 handle numbers larger than ULONG_MAX, truncated printing and had a
2794 non standard OBJ_obj2txt() behaviour.
2795 [Steve Henson]
2796
2797 *) Add support for building of engines under engine/ as shared libraries
2798 under VC++ build system.
2799 [Steve Henson]
2800
2801 *) Corrected the numerous bugs in the Win32 path splitter in DSO.
2802 Hopefully, we will not see any false combination of paths any more.
2803 [Richard Levitte]
2804
2805 Changes between 0.9.8 and 0.9.8a [11 Oct 2005]
2806
2807 *) Remove the functionality of SSL_OP_MSIE_SSLV2_RSA_PADDING
2808 (part of SSL_OP_ALL). This option used to disable the
2809 countermeasure against man-in-the-middle protocol-version
2810 rollback in the SSL 2.0 server implementation, which is a bad
2811 idea. (CVE-2005-2969)
2812
2813 [Bodo Moeller; problem pointed out by Yutaka Oiwa (Research Center
2814 for Information Security, National Institute of Advanced Industrial
2815 Science and Technology [AIST], Japan)]
2816
2817 *) Add two function to clear and return the verify parameter flags.
2818 [Steve Henson]
2819
2820 *) Keep cipherlists sorted in the source instead of sorting them at
2821 runtime, thus removing the need for a lock.
2822 [Nils Larsch]
2823
2824 *) Avoid some small subgroup attacks in Diffie-Hellman.
2825 [Nick Mathewson and Ben Laurie]
2826
2827 *) Add functions for well-known primes.
2828 [Nick Mathewson]
2829
2830 *) Extended Windows CE support.
2831 [Satoshi Nakamura and Andy Polyakov]
2832
2833 *) Initialize SSL_METHOD structures at compile time instead of during
2834 runtime, thus removing the need for a lock.
2835 [Steve Henson]
2836
2837 *) Make PKCS7_decrypt() work even if no certificate is supplied by
2838 attempting to decrypt each encrypted key in turn. Add support to
2839 smime utility.
2840 [Steve Henson]
2841
2842 Changes between 0.9.7h and 0.9.8 [05 Jul 2005]
2843
2844 [NB: OpenSSL 0.9.7i and later 0.9.7 patch levels were released after
2845 OpenSSL 0.9.8.]
2846
2847 *) Add libcrypto.pc and libssl.pc for those who feel they need them.
2848 [Richard Levitte]
2849
2850 *) Change CA.sh and CA.pl so they don't bundle the CSR and the private
2851 key into the same file any more.
2852 [Richard Levitte]
2853
2854 *) Add initial support for Win64, both IA64 and AMD64/x64 flavors.
2855 [Andy Polyakov]
2856
2857 *) Add -utf8 command line and config file option to 'ca'.
2858 [Stefan <stf@udoma.org]
2859
2860 *) Removed the macro des_crypt(), as it seems to conflict with some
2861 libraries. Use DES_crypt().
2862 [Richard Levitte]
2863
2864 *) Correct naming of the 'chil' and '4758cca' ENGINEs. This
2865 involves renaming the source and generated shared-libs for
2866 both. The engines will accept the corrected or legacy ids
2867 ('ncipher' and '4758_cca' respectively) when binding. NB,
2868 this only applies when building 'shared'.
2869 [Corinna Vinschen <vinschen@redhat.com> and Geoff Thorpe]
2870
2871 *) Add attribute functions to EVP_PKEY structure. Modify
2872 PKCS12_create() to recognize a CSP name attribute and
2873 use it. Make -CSP option work again in pkcs12 utility.
2874 [Steve Henson]
2875
2876 *) Add new functionality to the bn blinding code:
2877 - automatic re-creation of the BN_BLINDING parameters after
2878 a fixed number of uses (currently 32)
2879 - add new function for parameter creation
2880 - introduce flags to control the update behaviour of the
2881 BN_BLINDING parameters
2882 - hide BN_BLINDING structure
2883 Add a second BN_BLINDING slot to the RSA structure to improve
2884 performance when a single RSA object is shared among several
2885 threads.
2886 [Nils Larsch]
2887
2888 *) Add support for DTLS.
2889 [Nagendra Modadugu <nagendra@cs.stanford.edu> and Ben Laurie]
2890
2891 *) Add support for DER encoded private keys (SSL_FILETYPE_ASN1)
2892 to SSL_CTX_use_PrivateKey_file() and SSL_use_PrivateKey_file()
2893 [Walter Goulet]
2894
2895 *) Remove buggy and incompletet DH cert support from
2896 ssl/ssl_rsa.c and ssl/s3_both.c
2897 [Nils Larsch]
2898
2899 *) Use SHA-1 instead of MD5 as the default digest algorithm for
2900 the apps/openssl applications.
2901 [Nils Larsch]
2902
2903 *) Compile clean with "-Wall -Wmissing-prototypes
2904 -Wstrict-prototypes -Wmissing-declarations -Werror". Currently
2905 DEBUG_SAFESTACK must also be set.
2906 [Ben Laurie]
2907
2908 *) Change ./Configure so that certain algorithms can be disabled by default.
2909 The new counterpiece to "no-xxx" is "enable-xxx".
2910
2911 The patented RC5 and MDC2 algorithms will now be disabled unless
2912 "enable-rc5" and "enable-mdc2", respectively, are specified.
2913
2914 (IDEA remains enabled despite being patented. This is because IDEA
2915 is frequently required for interoperability, and there is no license
2916 fee for non-commercial use. As before, "no-idea" can be used to
2917 avoid this algorithm.)
2918
2919 [Bodo Moeller]
2920
2921 *) Add processing of proxy certificates (see RFC 3820). This work was
2922 sponsored by KTH (The Royal Institute of Technology in Stockholm) and
2923 EGEE (Enabling Grids for E-science in Europe).
2924 [Richard Levitte]
2925
2926 *) RC4 performance overhaul on modern architectures/implementations, such
2927 as Intel P4, IA-64 and AMD64.
2928 [Andy Polyakov]
2929
2930 *) New utility extract-section.pl. This can be used specify an alternative
2931 section number in a pod file instead of having to treat each file as
2932 a separate case in Makefile. This can be done by adding two lines to the
2933 pod file:
2934
2935 =for comment openssl_section:XXX
2936
2937 The blank line is mandatory.
2938
2939 [Steve Henson]
2940
2941 *) New arguments -certform, -keyform and -pass for s_client and s_server
2942 to allow alternative format key and certificate files and passphrase
2943 sources.
2944 [Steve Henson]
2945
2946 *) New structure X509_VERIFY_PARAM which combines current verify parameters,
2947 update associated structures and add various utility functions.
2948
2949 Add new policy related verify parameters, include policy checking in
2950 standard verify code. Enhance 'smime' application with extra parameters
2951 to support policy checking and print out.
2952 [Steve Henson]
2953
2954 *) Add a new engine to support VIA PadLock ACE extensions in the VIA C3
2955 Nehemiah processors. These extensions support AES encryption in hardware
2956 as well as RNG (though RNG support is currently disabled).
2957 [Michal Ludvig <michal@logix.cz>, with help from Andy Polyakov]
2958
2959 *) Deprecate BN_[get|set]_params() functions (they were ignored internally).
2960 [Geoff Thorpe]
2961
2962 *) New FIPS 180-2 algorithms, SHA-224/-256/-384/-512 are implemented.
2963 [Andy Polyakov and a number of other people]
2964
2965 *) Improved PowerPC platform support. Most notably BIGNUM assembler
2966 implementation contributed by IBM.
2967 [Suresh Chari, Peter Waltenberg, Andy Polyakov]
2968
2969 *) The new 'RSA_generate_key_ex' function now takes a BIGNUM for the public
2970 exponent rather than 'unsigned long'. There is a corresponding change to
2971 the new 'rsa_keygen' element of the RSA_METHOD structure.
2972 [Jelte Jansen, Geoff Thorpe]
2973
2974 *) Functionality for creating the initial serial number file is now
2975 moved from CA.pl to the 'ca' utility with a new option -create_serial.
2976
2977 (Before OpenSSL 0.9.7e, CA.pl used to initialize the serial
2978 number file to 1, which is bound to cause problems. To avoid
2979 the problems while respecting compatibility between different 0.9.7
2980 patchlevels, 0.9.7e employed 'openssl x509 -next_serial' in
2981 CA.pl for serial number initialization. With the new release 0.9.8,
2982 we can fix the problem directly in the 'ca' utility.)
2983 [Steve Henson]
2984
2985 *) Reduced header interdepencies by declaring more opaque objects in
2986 ossl_typ.h. As a consequence, including some headers (eg. engine.h) will
2987 give fewer recursive includes, which could break lazy source code - so
2988 this change is covered by the OPENSSL_NO_DEPRECATED symbol. As always,
2989 developers should define this symbol when building and using openssl to
2990 ensure they track the recommended behaviour, interfaces, [etc], but
2991 backwards-compatible behaviour prevails when this isn't defined.
2992 [Geoff Thorpe]
2993
2994 *) New function X509_POLICY_NODE_print() which prints out policy nodes.
2995 [Steve Henson]
2996
2997 *) Add new EVP function EVP_CIPHER_CTX_rand_key and associated functionality.
2998 This will generate a random key of the appropriate length based on the
2999 cipher context. The EVP_CIPHER can provide its own random key generation
3000 routine to support keys of a specific form. This is used in the des and
3001 3des routines to generate a key of the correct parity. Update S/MIME
3002 code to use new functions and hence generate correct parity DES keys.
3003 Add EVP_CHECK_DES_KEY #define to return an error if the key is not
3004 valid (weak or incorrect parity).
3005 [Steve Henson]
3006
3007 *) Add a local set of CRLs that can be used by X509_verify_cert() as well
3008 as looking them up. This is useful when the verified structure may contain
3009 CRLs, for example PKCS#7 signedData. Modify PKCS7_verify() to use any CRLs
3010 present unless the new PKCS7_NO_CRL flag is asserted.
3011 [Steve Henson]
3012
3013 *) Extend ASN1 oid configuration module. It now additionally accepts the
3014 syntax:
3015
3016 shortName = some long name, 1.2.3.4
3017 [Steve Henson]
3018
3019 *) Reimplemented the BN_CTX implementation. There is now no more static
3020 limitation on the number of variables it can handle nor the depth of the
3021 "stack" handling for BN_CTX_start()/BN_CTX_end() pairs. The stack
3022 information can now expand as required, and rather than having a single
3023 static array of bignums, BN_CTX now uses a linked-list of such arrays
3024 allowing it to expand on demand whilst maintaining the usefulness of
3025 BN_CTX's "bundling".
3026 [Geoff Thorpe]
3027
3028 *) Add a missing BN_CTX parameter to the 'rsa_mod_exp' callback in RSA_METHOD
3029 to allow all RSA operations to function using a single BN_CTX.
3030 [Geoff Thorpe]
3031
3032 *) Preliminary support for certificate policy evaluation and checking. This
3033 is initially intended to pass the tests outlined in "Conformance Testing
3034 of Relying Party Client Certificate Path Processing Logic" v1.07.
3035 [Steve Henson]
3036
3037 *) bn_dup_expand() has been deprecated, it was introduced in 0.9.7 and
3038 remained unused and not that useful. A variety of other little bignum
3039 tweaks and fixes have also been made continuing on from the audit (see
3040 below).
3041 [Geoff Thorpe]
3042
3043 *) Constify all or almost all d2i, c2i, s2i and r2i functions, along with
3044 associated ASN1, EVP and SSL functions and old ASN1 macros.
3045 [Richard Levitte]
3046
3047 *) BN_zero() only needs to set 'top' and 'neg' to zero for correct results,
3048 and this should never fail. So the return value from the use of
3049 BN_set_word() (which can fail due to needless expansion) is now deprecated;
3050 if OPENSSL_NO_DEPRECATED is defined, BN_zero() is a void macro.
3051 [Geoff Thorpe]
3052
3053 *) BN_CTX_get() should return zero-valued bignums, providing the same
3054 initialised value as BN_new().
3055 [Geoff Thorpe, suggested by Ulf Möller]
3056
3057 *) Support for inhibitAnyPolicy certificate extension.
3058 [Steve Henson]
3059
3060 *) An audit of the BIGNUM code is underway, for which debugging code is
3061 enabled when BN_DEBUG is defined. This makes stricter enforcements on what
3062 is considered valid when processing BIGNUMs, and causes execution to
3063 assert() when a problem is discovered. If BN_DEBUG_RAND is defined,
3064 further steps are taken to deliberately pollute unused data in BIGNUM
3065 structures to try and expose faulty code further on. For now, openssl will
3066 (in its default mode of operation) continue to tolerate the inconsistent
3067 forms that it has tolerated in the past, but authors and packagers should
3068 consider trying openssl and their own applications when compiled with
3069 these debugging symbols defined. It will help highlight potential bugs in
3070 their own code, and will improve the test coverage for OpenSSL itself. At
3071 some point, these tighter rules will become openssl's default to improve
3072 maintainability, though the assert()s and other overheads will remain only
3073 in debugging configurations. See bn.h for more details.
3074 [Geoff Thorpe, Nils Larsch, Ulf Möller]
3075
3076 *) BN_CTX_init() has been deprecated, as BN_CTX is an opaque structure
3077 that can only be obtained through BN_CTX_new() (which implicitly
3078 initialises it). The presence of this function only made it possible
3079 to overwrite an existing structure (and cause memory leaks).
3080 [Geoff Thorpe]
3081
3082 *) Because of the callback-based approach for implementing LHASH as a
3083 template type, lh_insert() adds opaque objects to hash-tables and
3084 lh_doall() or lh_doall_arg() are typically used with a destructor callback
3085 to clean up those corresponding objects before destroying the hash table
3086 (and losing the object pointers). So some over-zealous constifications in
3087 LHASH have been relaxed so that lh_insert() does not take (nor store) the
3088 objects as "const" and the lh_doall[_arg] callback wrappers are not
3089 prototyped to have "const" restrictions on the object pointers they are
3090 given (and so aren't required to cast them away any more).
3091 [Geoff Thorpe]
3092
3093 *) The tmdiff.h API was so ugly and minimal that our own timing utility
3094 (speed) prefers to use its own implementation. The two implementations
3095 haven't been consolidated as yet (volunteers?) but the tmdiff API has had
3096 its object type properly exposed (MS_TM) instead of casting to/from "char
3097 *". This may still change yet if someone realises MS_TM and "ms_time_***"
3098 aren't necessarily the greatest nomenclatures - but this is what was used
3099 internally to the implementation so I've used that for now.
3100 [Geoff Thorpe]
3101
3102 *) Ensure that deprecated functions do not get compiled when
3103 OPENSSL_NO_DEPRECATED is defined. Some "openssl" subcommands and a few of
3104 the self-tests were still using deprecated key-generation functions so
3105 these have been updated also.
3106 [Geoff Thorpe]
3107
3108 *) Reorganise PKCS#7 code to separate the digest location functionality
3109 into PKCS7_find_digest(), digest addtion into PKCS7_bio_add_digest().
3110 New function PKCS7_set_digest() to set the digest type for PKCS#7
3111 digestedData type. Add additional code to correctly generate the
3112 digestedData type and add support for this type in PKCS7 initialization
3113 functions.
3114 [Steve Henson]
3115
3116 *) New function PKCS7_set0_type_other() this initializes a PKCS7
3117 structure of type "other".
3118 [Steve Henson]
3119
3120 *) Fix prime generation loop in crypto/bn/bn_prime.pl by making
3121 sure the loop does correctly stop and breaking ("division by zero")
3122 modulus operations are not performed. The (pre-generated) prime
3123 table crypto/bn/bn_prime.h was already correct, but it could not be
3124 re-generated on some platforms because of the "division by zero"
3125 situation in the script.
3126 [Ralf S. Engelschall]
3127
3128 *) Update support for ECC-based TLS ciphersuites according to
3129 draft-ietf-tls-ecc-03.txt: the KDF1 key derivation function with
3130 SHA-1 now is only used for "small" curves (where the
3131 representation of a field element takes up to 24 bytes); for
3132 larger curves, the field element resulting from ECDH is directly
3133 used as premaster secret.
3134 [Douglas Stebila (Sun Microsystems Laboratories)]
3135
3136 *) Add code for kP+lQ timings to crypto/ec/ectest.c, and add SEC2
3137 curve secp160r1 to the tests.
3138 [Douglas Stebila (Sun Microsystems Laboratories)]
3139
3140 *) Add the possibility to load symbols globally with DSO.
3141 [Götz Babin-Ebell <babin-ebell@trustcenter.de> via Richard Levitte]
3142
3143 *) Add the functions ERR_set_mark() and ERR_pop_to_mark() for better
3144 control of the error stack.
3145 [Richard Levitte]
3146
3147 *) Add support for STORE in ENGINE.
3148 [Richard Levitte]
3149
3150 *) Add the STORE type. The intention is to provide a common interface
3151 to certificate and key stores, be they simple file-based stores, or
3152 HSM-type store, or LDAP stores, or...
3153 NOTE: The code is currently UNTESTED and isn't really used anywhere.
3154 [Richard Levitte]
3155
3156 *) Add a generic structure called OPENSSL_ITEM. This can be used to
3157 pass a list of arguments to any function as well as provide a way
3158 for a function to pass data back to the caller.
3159 [Richard Levitte]
3160
3161 *) Add the functions BUF_strndup() and BUF_memdup(). BUF_strndup()
3162 works like BUF_strdup() but can be used to duplicate a portion of
3163 a string. The copy gets NUL-terminated. BUF_memdup() duplicates
3164 a memory area.
3165 [Richard Levitte]
3166
3167 *) Add the function sk_find_ex() which works like sk_find(), but will
3168 return an index to an element even if an exact match couldn't be
3169 found. The index is guaranteed to point at the element where the
3170 searched-for key would be inserted to preserve sorting order.
3171 [Richard Levitte]
3172
3173 *) Add the function OBJ_bsearch_ex() which works like OBJ_bsearch() but
3174 takes an extra flags argument for optional functionality. Currently,
3175 the following flags are defined:
3176
3177 OBJ_BSEARCH_VALUE_ON_NOMATCH
3178 This one gets OBJ_bsearch_ex() to return a pointer to the first
3179 element where the comparing function returns a negative or zero
3180 number.
3181
3182 OBJ_BSEARCH_FIRST_VALUE_ON_MATCH
3183 This one gets OBJ_bsearch_ex() to return a pointer to the first
3184 element where the comparing function returns zero. This is useful
3185 if there are more than one element where the comparing function
3186 returns zero.
3187 [Richard Levitte]
3188
3189 *) Make it possible to create self-signed certificates with 'openssl ca'
3190 in such a way that the self-signed certificate becomes part of the
3191 CA database and uses the same mechanisms for serial number generation
3192 as all other certificate signing. The new flag '-selfsign' enables
3193 this functionality. Adapt CA.sh and CA.pl.in.
3194 [Richard Levitte]
3195
3196 *) Add functionality to check the public key of a certificate request
3197 against a given private. This is useful to check that a certificate
3198 request can be signed by that key (self-signing).
3199 [Richard Levitte]
3200
3201 *) Make it possible to have multiple active certificates with the same
3202 subject in the CA index file. This is done only if the keyword
3203 'unique_subject' is set to 'no' in the main CA section (default
3204 if 'CA_default') of the configuration file. The value is saved
3205 with the database itself in a separate index attribute file,
3206 named like the index file with '.attr' appended to the name.
3207 [Richard Levitte]
3208
3209 *) Generate muti valued AVAs using '+' notation in config files for
3210 req and dirName.
3211 [Steve Henson]
3212
3213 *) Support for nameConstraints certificate extension.
3214 [Steve Henson]
3215
3216 *) Support for policyConstraints certificate extension.
3217 [Steve Henson]
3218
3219 *) Support for policyMappings certificate extension.
3220 [Steve Henson]
3221
3222 *) Make sure the default DSA_METHOD implementation only uses its
3223 dsa_mod_exp() and/or bn_mod_exp() handlers if they are non-NULL,
3224 and change its own handlers to be NULL so as to remove unnecessary
3225 indirection. This lets alternative implementations fallback to the
3226 default implementation more easily.
3227 [Geoff Thorpe]
3228
3229 *) Support for directoryName in GeneralName related extensions
3230 in config files.
3231 [Steve Henson]
3232
3233 *) Make it possible to link applications using Makefile.shared.
3234 Make that possible even when linking against static libraries!
3235 [Richard Levitte]
3236
3237 *) Support for single pass processing for S/MIME signing. This now
3238 means that S/MIME signing can be done from a pipe, in addition
3239 cleartext signing (multipart/signed type) is effectively streaming
3240 and the signed data does not need to be all held in memory.
3241
3242 This is done with a new flag PKCS7_STREAM. When this flag is set
3243 PKCS7_sign() only initializes the PKCS7 structure and the actual signing
3244 is done after the data is output (and digests calculated) in
3245 SMIME_write_PKCS7().
3246 [Steve Henson]
3247
3248 *) Add full support for -rpath/-R, both in shared libraries and
3249 applications, at least on the platforms where it's known how
3250 to do it.
3251 [Richard Levitte]
3252
3253 *) In crypto/ec/ec_mult.c, implement fast point multiplication with
3254 precomputation, based on wNAF splitting: EC_GROUP_precompute_mult()
3255 will now compute a table of multiples of the generator that
3256 makes subsequent invocations of EC_POINTs_mul() or EC_POINT_mul()
3257 faster (notably in the case of a single point multiplication,
3258 scalar * generator).
3259 [Nils Larsch, Bodo Moeller]
3260
3261 *) IPv6 support for certificate extensions. The various extensions
3262 which use the IP:a.b.c.d can now take IPv6 addresses using the
3263 formats of RFC1884 2.2 . IPv6 addresses are now also displayed
3264 correctly.
3265 [Steve Henson]
3266
3267 *) Added an ENGINE that implements RSA by performing private key
3268 exponentiations with the GMP library. The conversions to and from
3269 GMP's mpz_t format aren't optimised nor are any montgomery forms
3270 cached, and on x86 it appears OpenSSL's own performance has caught up.
3271 However there are likely to be other architectures where GMP could
3272 provide a boost. This ENGINE is not built in by default, but it can be
3273 specified at Configure time and should be accompanied by the necessary
3274 linker additions, eg;
3275 ./config -DOPENSSL_USE_GMP -lgmp
3276 [Geoff Thorpe]
3277
3278 *) "openssl engine" will not display ENGINE/DSO load failure errors when
3279 testing availability of engines with "-t" - the old behaviour is
3280 produced by increasing the feature's verbosity with "-tt".
3281 [Geoff Thorpe]
3282
3283 *) ECDSA routines: under certain error conditions uninitialized BN objects
3284 could be freed. Solution: make sure initialization is performed early
3285 enough. (Reported and fix supplied by Nils Larsch <nla@trustcenter.de>
3286 via PR#459)
3287 [Lutz Jaenicke]
3288
3289 *) Key-generation can now be implemented in RSA_METHOD, DSA_METHOD
3290 and DH_METHOD (eg. by ENGINE implementations) to override the normal
3291 software implementations. For DSA and DH, parameter generation can
3292 also be overriden by providing the appropriate method callbacks.
3293 [Geoff Thorpe]
3294
3295 *) Change the "progress" mechanism used in key-generation and
3296 primality testing to functions that take a new BN_GENCB pointer in
3297 place of callback/argument pairs. The new API functions have "_ex"
3298 postfixes and the older functions are reimplemented as wrappers for
3299 the new ones. The OPENSSL_NO_DEPRECATED symbol can be used to hide
3300 declarations of the old functions to help (graceful) attempts to
3301 migrate to the new functions. Also, the new key-generation API
3302 functions operate on a caller-supplied key-structure and return
3303 success/failure rather than returning a key or NULL - this is to
3304 help make "keygen" another member function of RSA_METHOD etc.
3305
3306 Example for using the new callback interface:
3307
3308 int (*my_callback)(int a, int b, BN_GENCB *cb) = ...;
3309 void *my_arg = ...;
3310 BN_GENCB my_cb;
3311
3312 BN_GENCB_set(&my_cb, my_callback, my_arg);
3313
3314 return BN_is_prime_ex(some_bignum, BN_prime_checks, NULL, &cb);
3315 /* For the meaning of a, b in calls to my_callback(), see the
3316 * documentation of the function that calls the callback.
3317 * cb will point to my_cb; my_arg can be retrieved as cb->arg.
3318 * my_callback should return 1 if it wants BN_is_prime_ex()
3319 * to continue, or 0 to stop.
3320 */
3321
3322 [Geoff Thorpe]
3323
3324 *) Change the ZLIB compression method to be stateful, and make it
3325 available to TLS with the number defined in
3326 draft-ietf-tls-compression-04.txt.
3327 [Richard Levitte]
3328
3329 *) Add the ASN.1 structures and functions for CertificatePair, which
3330 is defined as follows (according to X.509_4thEditionDraftV6.pdf):
3331
3332 CertificatePair ::= SEQUENCE {
3333 forward [0] Certificate OPTIONAL,
3334 reverse [1] Certificate OPTIONAL,
3335 -- at least one of the pair shall be present -- }
3336
3337 Also implement the PEM functions to read and write certificate
3338 pairs, and defined the PEM tag as "CERTIFICATE PAIR".
3339
3340 This needed to be defined, mostly for the sake of the LDAP
3341 attribute crossCertificatePair, but may prove useful elsewhere as
3342 well.
3343 [Richard Levitte]
3344
3345 *) Make it possible to inhibit symlinking of shared libraries in
3346 Makefile.shared, for Cygwin's sake.
3347 [Richard Levitte]
3348
3349 *) Extend the BIGNUM API by creating a function
3350 void BN_set_negative(BIGNUM *a, int neg);
3351 and a macro that behave like
3352 int BN_is_negative(const BIGNUM *a);
3353
3354 to avoid the need to access 'a->neg' directly in applications.
3355 [Nils Larsch]
3356
3357 *) Implement fast modular reduction for pseudo-Mersenne primes
3358 used in NIST curves (crypto/bn/bn_nist.c, crypto/ec/ecp_nist.c).
3359 EC_GROUP_new_curve_GFp() will now automatically use this
3360 if applicable.
3361 [Nils Larsch <nla@trustcenter.de>]
3362
3363 *) Add new lock type (CRYPTO_LOCK_BN).
3364 [Bodo Moeller]
3365
3366 *) Change the ENGINE framework to automatically load engines
3367 dynamically from specific directories unless they could be
3368 found to already be built in or loaded. Move all the
3369 current engines except for the cryptodev one to a new
3370 directory engines/.
3371 The engines in engines/ are built as shared libraries if
3372 the "shared" options was given to ./Configure or ./config.
3373 Otherwise, they are inserted in libcrypto.a.
3374 /usr/local/ssl/engines is the default directory for dynamic
3375 engines, but that can be overriden at configure time through
3376 the usual use of --prefix and/or --openssldir, and at run
3377 time with the environment variable OPENSSL_ENGINES.
3378 [Geoff Thorpe and Richard Levitte]
3379
3380 *) Add Makefile.shared, a helper makefile to build shared
3381 libraries. Addapt Makefile.org.
3382 [Richard Levitte]
3383
3384 *) Add version info to Win32 DLLs.
3385 [Peter 'Luna' Runestig" <peter@runestig.com>]
3386
3387 *) Add new 'medium level' PKCS#12 API. Certificates and keys
3388 can be added using this API to created arbitrary PKCS#12
3389 files while avoiding the low level API.
3390
3391 New options to PKCS12_create(), key or cert can be NULL and
3392 will then be omitted from the output file. The encryption
3393 algorithm NIDs can be set to -1 for no encryption, the mac
3394 iteration count can be set to 0 to omit the mac.
3395
3396 Enhance pkcs12 utility by making the -nokeys and -nocerts
3397 options work when creating a PKCS#12 file. New option -nomac
3398 to omit the mac, NONE can be set for an encryption algorithm.
3399 New code is modified to use the enhanced PKCS12_create()
3400 instead of the low level API.
3401 [Steve Henson]
3402
3403 *) Extend ASN1 encoder to support indefinite length constructed
3404 encoding. This can output sequences tags and octet strings in
3405 this form. Modify pk7_asn1.c to support indefinite length
3406 encoding. This is experimental and needs additional code to
3407 be useful, such as an ASN1 bio and some enhanced streaming
3408 PKCS#7 code.
3409
3410 Extend template encode functionality so that tagging is passed
3411 down to the template encoder.
3412 [Steve Henson]
3413
3414 *) Let 'openssl req' fail if an argument to '-newkey' is not
3415 recognized instead of using RSA as a default.
3416 [Bodo Moeller]
3417
3418 *) Add support for ECC-based ciphersuites from draft-ietf-tls-ecc-01.txt.
3419 As these are not official, they are not included in "ALL";
3420 the "ECCdraft" ciphersuite group alias can be used to select them.
3421 [Vipul Gupta and Sumit Gupta (Sun Microsystems Laboratories)]
3422
3423 *) Add ECDH engine support.
3424 [Nils Gura and Douglas Stebila (Sun Microsystems Laboratories)]
3425
3426 *) Add ECDH in new directory crypto/ecdh/.
3427 [Douglas Stebila (Sun Microsystems Laboratories)]
3428
3429 *) Let BN_rand_range() abort with an error after 100 iterations
3430 without success (which indicates a broken PRNG).
3431 [Bodo Moeller]
3432
3433 *) Change BN_mod_sqrt() so that it verifies that the input value
3434 is really the square of the return value. (Previously,
3435 BN_mod_sqrt would show GIGO behaviour.)
3436 [Bodo Moeller]
3437
3438 *) Add named elliptic curves over binary fields from X9.62, SECG,
3439 and WAP/WTLS; add OIDs that were still missing.
3440
3441 [Sheueling Chang Shantz and Douglas Stebila
3442 (Sun Microsystems Laboratories)]
3443
3444 *) Extend the EC library for elliptic curves over binary fields
3445 (new files ec2_smpl.c, ec2_smpt.c, ec2_mult.c in crypto/ec/).
3446 New EC_METHOD:
3447
3448 EC_GF2m_simple_method
3449
3450 New API functions:
3451
3452 EC_GROUP_new_curve_GF2m
3453 EC_GROUP_set_curve_GF2m
3454 EC_GROUP_get_curve_GF2m
3455 EC_POINT_set_affine_coordinates_GF2m
3456 EC_POINT_get_affine_coordinates_GF2m
3457 EC_POINT_set_compressed_coordinates_GF2m
3458
3459 Point compression for binary fields is disabled by default for
3460 patent reasons (compile with OPENSSL_EC_BIN_PT_COMP defined to
3461 enable it).
3462
3463 As binary polynomials are represented as BIGNUMs, various members
3464 of the EC_GROUP and EC_POINT data structures can be shared
3465 between the implementations for prime fields and binary fields;
3466 the above ..._GF2m functions (except for EX_GROUP_new_curve_GF2m)
3467 are essentially identical to their ..._GFp counterparts.
3468 (For simplicity, the '..._GFp' prefix has been dropped from
3469 various internal method names.)
3470
3471 An internal 'field_div' method (similar to 'field_mul' and
3472 'field_sqr') has been added; this is used only for binary fields.
3473
3474 [Sheueling Chang Shantz and Douglas Stebila
3475 (Sun Microsystems Laboratories)]
3476
3477 *) Optionally dispatch EC_POINT_mul(), EC_POINT_precompute_mult()
3478 through methods ('mul', 'precompute_mult').
3479
3480 The generic implementations (now internally called 'ec_wNAF_mul'
3481 and 'ec_wNAF_precomputed_mult') remain the default if these
3482 methods are undefined.
3483
3484 [Sheueling Chang Shantz and Douglas Stebila
3485 (Sun Microsystems Laboratories)]
3486
3487 *) New function EC_GROUP_get_degree, which is defined through
3488 EC_METHOD. For curves over prime fields, this returns the bit
3489 length of the modulus.
3490
3491 [Sheueling Chang Shantz and Douglas Stebila
3492 (Sun Microsystems Laboratories)]
3493
3494 *) New functions EC_GROUP_dup, EC_POINT_dup.
3495 (These simply call ..._new and ..._copy).
3496
3497 [Sheueling Chang Shantz and Douglas Stebila
3498 (Sun Microsystems Laboratories)]
3499
3500 *) Add binary polynomial arithmetic software in crypto/bn/bn_gf2m.c.
3501 Polynomials are represented as BIGNUMs (where the sign bit is not
3502 used) in the following functions [macros]:
3503
3504 BN_GF2m_add
3505 BN_GF2m_sub [= BN_GF2m_add]
3506 BN_GF2m_mod [wrapper for BN_GF2m_mod_arr]
3507 BN_GF2m_mod_mul [wrapper for BN_GF2m_mod_mul_arr]
3508 BN_GF2m_mod_sqr [wrapper for BN_GF2m_mod_sqr_arr]
3509 BN_GF2m_mod_inv
3510 BN_GF2m_mod_exp [wrapper for BN_GF2m_mod_exp_arr]
3511 BN_GF2m_mod_sqrt [wrapper for BN_GF2m_mod_sqrt_arr]
3512 BN_GF2m_mod_solve_quad [wrapper for BN_GF2m_mod_solve_quad_arr]
3513 BN_GF2m_cmp [= BN_ucmp]
3514
3515 (Note that only the 'mod' functions are actually for fields GF(2^m).
3516 BN_GF2m_add() is misnomer, but this is for the sake of consistency.)
3517
3518 For some functions, an the irreducible polynomial defining a
3519 field can be given as an 'unsigned int[]' with strictly
3520 decreasing elements giving the indices of those bits that are set;
3521 i.e., p[] represents the polynomial
3522 f(t) = t^p[0] + t^p[1] + ... + t^p[k]
3523 where
3524 p[0] > p[1] > ... > p[k] = 0.
3525 This applies to the following functions:
3526
3527 BN_GF2m_mod_arr
3528 BN_GF2m_mod_mul_arr
3529 BN_GF2m_mod_sqr_arr
3530 BN_GF2m_mod_inv_arr [wrapper for BN_GF2m_mod_inv]
3531 BN_GF2m_mod_div_arr [wrapper for BN_GF2m_mod_div]
3532 BN_GF2m_mod_exp_arr
3533 BN_GF2m_mod_sqrt_arr
3534 BN_GF2m_mod_solve_quad_arr
3535 BN_GF2m_poly2arr
3536 BN_GF2m_arr2poly
3537
3538 Conversion can be performed by the following functions:
3539
3540 BN_GF2m_poly2arr
3541 BN_GF2m_arr2poly
3542
3543 bntest.c has additional tests for binary polynomial arithmetic.
3544
3545 Two implementations for BN_GF2m_mod_div() are available.
3546 The default algorithm simply uses BN_GF2m_mod_inv() and
3547 BN_GF2m_mod_mul(). The alternative algorithm is compiled in only
3548 if OPENSSL_SUN_GF2M_DIV is defined (patent pending; read the
3549 copyright notice in crypto/bn/bn_gf2m.c before enabling it).
3550
3551 [Sheueling Chang Shantz and Douglas Stebila
3552 (Sun Microsystems Laboratories)]
3553
3554 *) Add new error code 'ERR_R_DISABLED' that can be used when some
3555 functionality is disabled at compile-time.
3556 [Douglas Stebila <douglas.stebila@sun.com>]
3557
3558 *) Change default behaviour of 'openssl asn1parse' so that more
3559 information is visible when viewing, e.g., a certificate:
3560
3561 Modify asn1_parse2 (crypto/asn1/asn1_par.c) so that in non-'dump'
3562 mode the content of non-printable OCTET STRINGs is output in a
3563 style similar to INTEGERs, but with '[HEX DUMP]' prepended to
3564 avoid the appearance of a printable string.
3565 [Nils Larsch <nla@trustcenter.de>]
3566
3567 *) Add 'asn1_flag' and 'asn1_form' member to EC_GROUP with access
3568 functions
3569 EC_GROUP_set_asn1_flag()
3570 EC_GROUP_get_asn1_flag()
3571 EC_GROUP_set_point_conversion_form()
3572 EC_GROUP_get_point_conversion_form()
3573 These control ASN1 encoding details:
3574 - Curves (i.e., groups) are encoded explicitly unless asn1_flag
3575 has been set to OPENSSL_EC_NAMED_CURVE.
3576 - Points are encoded in uncompressed form by default; options for
3577 asn1_for are as for point2oct, namely
3578 POINT_CONVERSION_COMPRESSED
3579 POINT_CONVERSION_UNCOMPRESSED
3580 POINT_CONVERSION_HYBRID
3581
3582 Also add 'seed' and 'seed_len' members to EC_GROUP with access
3583 functions
3584 EC_GROUP_set_seed()
3585 EC_GROUP_get0_seed()
3586 EC_GROUP_get_seed_len()
3587 This is used only for ASN1 purposes (so far).
3588 [Nils Larsch <nla@trustcenter.de>]
3589
3590 *) Add 'field_type' member to EC_METHOD, which holds the NID
3591 of the appropriate field type OID. The new function
3592 EC_METHOD_get_field_type() returns this value.
3593 [Nils Larsch <nla@trustcenter.de>]
3594
3595 *) Add functions
3596 EC_POINT_point2bn()
3597 EC_POINT_bn2point()
3598 EC_POINT_point2hex()
3599 EC_POINT_hex2point()
3600 providing useful interfaces to EC_POINT_point2oct() and
3601 EC_POINT_oct2point().
3602 [Nils Larsch <nla@trustcenter.de>]
3603
3604 *) Change internals of the EC library so that the functions
3605 EC_GROUP_set_generator()
3606 EC_GROUP_get_generator()
3607 EC_GROUP_get_order()
3608 EC_GROUP_get_cofactor()
3609 are implemented directly in crypto/ec/ec_lib.c and not dispatched
3610 to methods, which would lead to unnecessary code duplication when
3611 adding different types of curves.
3612 [Nils Larsch <nla@trustcenter.de> with input by Bodo Moeller]
3613
3614 *) Implement compute_wNAF (crypto/ec/ec_mult.c) without BIGNUM
3615 arithmetic, and such that modified wNAFs are generated
3616 (which avoid length expansion in many cases).
3617 [Bodo Moeller]
3618
3619 *) Add a function EC_GROUP_check_discriminant() (defined via
3620 EC_METHOD) that verifies that the curve discriminant is non-zero.
3621
3622 Add a function EC_GROUP_check() that makes some sanity tests
3623 on a EC_GROUP, its generator and order. This includes
3624 EC_GROUP_check_discriminant().
3625 [Nils Larsch <nla@trustcenter.de>]
3626
3627 *) Add ECDSA in new directory crypto/ecdsa/.
3628
3629 Add applications 'openssl ecparam' and 'openssl ecdsa'
3630 (these are based on 'openssl dsaparam' and 'openssl dsa').
3631
3632 ECDSA support is also included in various other files across the
3633 library. Most notably,
3634 - 'openssl req' now has a '-newkey ecdsa:file' option;
3635 - EVP_PKCS82PKEY (crypto/evp/evp_pkey.c) now can handle ECDSA;
3636 - X509_PUBKEY_get (crypto/asn1/x_pubkey.c) and
3637 d2i_PublicKey (crypto/asn1/d2i_pu.c) have been modified to make
3638 them suitable for ECDSA where domain parameters must be
3639 extracted before the specific public key;
3640 - ECDSA engine support has been added.
3641 [Nils Larsch <nla@trustcenter.de>]
3642
3643 *) Include some named elliptic curves, and add OIDs from X9.62,
3644 SECG, and WAP/WTLS. Each curve can be obtained from the new
3645 function
3646 EC_GROUP_new_by_curve_name(),
3647 and the list of available named curves can be obtained with
3648 EC_get_builtin_curves().
3649 Also add a 'curve_name' member to EC_GROUP objects, which can be
3650 accessed via
3651 EC_GROUP_set_curve_name()
3652 EC_GROUP_get_curve_name()
3653 [Nils Larsch <larsch@trustcenter.de, Bodo Moeller]
3654
3655 *) Remove a few calls to bn_wexpand() in BN_sqr() (the one in there
3656 was actually never needed) and in BN_mul(). The removal in BN_mul()
3657 required a small change in bn_mul_part_recursive() and the addition
3658 of the functions bn_cmp_part_words(), bn_sub_part_words() and
3659 bn_add_part_words(), which do the same thing as bn_cmp_words(),
3660 bn_sub_words() and bn_add_words() except they take arrays with
3661 differing sizes.
3662 [Richard Levitte]
3663
3664 Changes between 0.9.7l and 0.9.7m [23 Feb 2007]
3665
3666 *) Cleanse PEM buffers before freeing them since they may contain
3667 sensitive data.
3668 [Benjamin Bennett <ben@psc.edu>]
3669
3670 *) Include "!eNULL" in SSL_DEFAULT_CIPHER_LIST to make sure that
3671 a ciphersuite string such as "DEFAULT:RSA" cannot enable
3672 authentication-only ciphersuites.
3673 [Bodo Moeller]
3674
3675 *) Since AES128 and AES256 share a single mask bit in the logic of
3676 ssl/ssl_ciph.c, the code for masking out disabled ciphers needs a
3677 kludge to work properly if AES128 is available and AES256 isn't.
3678 [Victor Duchovni]
3679
3680 *) Expand security boundary to match 1.1.1 module.
3681 [Steve Henson]
3682
3683 *) Remove redundant features: hash file source, editing of test vectors
3684 modify fipsld to use external fips_premain.c signature.
3685 [Steve Henson]
3686
3687 *) New perl script mkfipsscr.pl to create shell scripts or batch files to
3688 run algorithm test programs.
3689 [Steve Henson]
3690
3691 *) Make algorithm test programs more tolerant of whitespace.
3692 [Steve Henson]
3693
3694 *) Have SSL/TLS server implementation tolerate "mismatched" record
3695 protocol version while receiving ClientHello even if the
3696 ClientHello is fragmented. (The server can't insist on the
3697 particular protocol version it has chosen before the ServerHello
3698 message has informed the client about his choice.)
3699 [Bodo Moeller]
3700
3701 *) Load error codes if they are not already present instead of using a
3702 static variable. This allows them to be cleanly unloaded and reloaded.
3703 [Steve Henson]
3704
3705 Changes between 0.9.7k and 0.9.7l [28 Sep 2006]
3706
3707 *) Introduce limits to prevent malicious keys being able to
3708 cause a denial of service. (CVE-2006-2940)
3709 [Steve Henson, Bodo Moeller]
3710
3711 *) Fix ASN.1 parsing of certain invalid structures that can result
3712 in a denial of service. (CVE-2006-2937) [Steve Henson]
3713
3714 *) Fix buffer overflow in SSL_get_shared_ciphers() function.
3715 (CVE-2006-3738) [Tavis Ormandy and Will Drewry, Google Security Team]
3716
3717 *) Fix SSL client code which could crash if connecting to a
3718 malicious SSLv2 server. (CVE-2006-4343)
3719 [Tavis Ormandy and Will Drewry, Google Security Team]
3720
3721 *) Change ciphersuite string processing so that an explicit
3722 ciphersuite selects this one ciphersuite (so that "AES256-SHA"
3723 will no longer include "AES128-SHA"), and any other similar
3724 ciphersuite (same bitmap) from *other* protocol versions (so that
3725 "RC4-MD5" will still include both the SSL 2.0 ciphersuite and the
3726 SSL 3.0/TLS 1.0 ciphersuite). This is a backport combining
3727 changes from 0.9.8b and 0.9.8d.
3728 [Bodo Moeller]
3729
3730 Changes between 0.9.7j and 0.9.7k [05 Sep 2006]
3731
3732 *) Avoid PKCS #1 v1.5 signature attack discovered by Daniel Bleichenbacher
3733 (CVE-2006-4339) [Ben Laurie and Google Security Team]
3734
3735 *) Change the Unix randomness entropy gathering to use poll() when
3736 possible instead of select(), since the latter has some
3737 undesirable limitations.
3738 [Darryl Miles via Richard Levitte and Bodo Moeller]
3739
3740 *) Disable rogue ciphersuites:
3741
3742 - SSLv2 0x08 0x00 0x80 ("RC4-64-MD5")
3743 - SSLv3/TLSv1 0x00 0x61 ("EXP1024-RC2-CBC-MD5")
3744 - SSLv3/TLSv1 0x00 0x60 ("EXP1024-RC4-MD5")
3745
3746 The latter two were purportedly from
3747 draft-ietf-tls-56-bit-ciphersuites-0[01].txt, but do not really
3748 appear there.
3749
3750 Also deactive the remaining ciphersuites from
3751 draft-ietf-tls-56-bit-ciphersuites-01.txt. These are just as
3752 unofficial, and the ID has long expired.
3753 [Bodo Moeller]
3754
3755 *) Fix RSA blinding Heisenbug (problems sometimes occured on
3756 dual-core machines) and other potential thread-safety issues.
3757 [Bodo Moeller]
3758
3759 Changes between 0.9.7i and 0.9.7j [04 May 2006]
3760
3761 *) Adapt fipsld and the build system to link against the validated FIPS
3762 module in FIPS mode.
3763 [Steve Henson]
3764
3765 *) Fixes for VC++ 2005 build under Windows.
3766 [Steve Henson]
3767
3768 *) Add new Windows build target VC-32-GMAKE for VC++. This uses GNU make
3769 from a Windows bash shell such as MSYS. It is autodetected from the
3770 "config" script when run from a VC++ environment. Modify standard VC++
3771 build to use fipscanister.o from the GNU make build.
3772 [Steve Henson]
3773
3774 Changes between 0.9.7h and 0.9.7i [14 Oct 2005]
3775
3776 *) Wrapped the definition of EVP_MAX_MD_SIZE in a #ifdef OPENSSL_FIPS.
3777 The value now differs depending on if you build for FIPS or not.
3778 BEWARE! A program linked with a shared FIPSed libcrypto can't be
3779 safely run with a non-FIPSed libcrypto, as it may crash because of
3780 the difference induced by this change.
3781 [Andy Polyakov]
3782
3783 Changes between 0.9.7g and 0.9.7h [11 Oct 2005]
3784
3785 *) Remove the functionality of SSL_OP_MSIE_SSLV2_RSA_PADDING
3786 (part of SSL_OP_ALL). This option used to disable the
3787 countermeasure against man-in-the-middle protocol-version
3788 rollback in the SSL 2.0 server implementation, which is a bad
3789 idea. (CVE-2005-2969)
3790
3791 [Bodo Moeller; problem pointed out by Yutaka Oiwa (Research Center
3792 for Information Security, National Institute of Advanced Industrial
3793 Science and Technology [AIST], Japan)]
3794
3795 *) Minimal support for X9.31 signatures and PSS padding modes. This is
3796 mainly for FIPS compliance and not fully integrated at this stage.
3797 [Steve Henson]
3798
3799 *) For DSA signing, unless DSA_FLAG_NO_EXP_CONSTTIME is set, perform
3800 the exponentiation using a fixed-length exponent. (Otherwise,
3801 the information leaked through timing could expose the secret key
3802 after many signatures; cf. Bleichenbacher's attack on DSA with
3803 biased k.)
3804 [Bodo Moeller]
3805
3806 *) Make a new fixed-window mod_exp implementation the default for
3807 RSA, DSA, and DH private-key operations so that the sequence of
3808 squares and multiplies and the memory access pattern are
3809 independent of the particular secret key. This will mitigate
3810 cache-timing and potential related attacks.
3811
3812 BN_mod_exp_mont_consttime() is the new exponentiation implementation,
3813 and this is automatically used by BN_mod_exp_mont() if the new flag
3814 BN_FLG_EXP_CONSTTIME is set for the exponent. RSA, DSA, and DH
3815 will use this BN flag for private exponents unless the flag
3816 RSA_FLAG_NO_EXP_CONSTTIME, DSA_FLAG_NO_EXP_CONSTTIME, or
3817 DH_FLAG_NO_EXP_CONSTTIME, respectively, is set.
3818
3819 [Matthew D Wood (Intel Corp), with some changes by Bodo Moeller]
3820
3821 *) Change the client implementation for SSLv23_method() and
3822 SSLv23_client_method() so that is uses the SSL 3.0/TLS 1.0
3823 Client Hello message format if the SSL_OP_NO_SSLv2 option is set.
3824 (Previously, the SSL 2.0 backwards compatible Client Hello
3825 message format would be used even with SSL_OP_NO_SSLv2.)
3826 [Bodo Moeller]
3827
3828 *) Add support for smime-type MIME parameter in S/MIME messages which some
3829 clients need.
3830 [Steve Henson]
3831
3832 *) New function BN_MONT_CTX_set_locked() to set montgomery parameters in
3833 a threadsafe manner. Modify rsa code to use new function and add calls
3834 to dsa and dh code (which had race conditions before).
3835 [Steve Henson]
3836
3837 *) Include the fixed error library code in the C error file definitions
3838 instead of fixing them up at runtime. This keeps the error code
3839 structures constant.
3840 [Steve Henson]
3841
3842 Changes between 0.9.7f and 0.9.7g [11 Apr 2005]
3843
3844 [NB: OpenSSL 0.9.7h and later 0.9.7 patch levels were released after
3845 OpenSSL 0.9.8.]
3846
3847 *) Fixes for newer kerberos headers. NB: the casts are needed because
3848 the 'length' field is signed on one version and unsigned on another
3849 with no (?) obvious way to tell the difference, without these VC++
3850 complains. Also the "definition" of FAR (blank) is no longer included
3851 nor is the error ENOMEM. KRB5_PRIVATE has to be set to 1 to pick up
3852 some needed definitions.
3853 [Steve Henson]
3854
3855 *) Undo Cygwin change.
3856 [Ulf Möller]
3857
3858 *) Added support for proxy certificates according to RFC 3820.
3859 Because they may be a security thread to unaware applications,
3860 they must be explicitely allowed in run-time. See
3861 docs/HOWTO/proxy_certificates.txt for further information.
3862 [Richard Levitte]
3863
3864 Changes between 0.9.7e and 0.9.7f [22 Mar 2005]
3865
3866 *) Use (SSL_RANDOM_VALUE - 4) bytes of pseudo random data when generating
3867 server and client random values. Previously
3868 (SSL_RANDOM_VALUE - sizeof(time_t)) would be used which would result in
3869 less random data when sizeof(time_t) > 4 (some 64 bit platforms).
3870
3871 This change has negligible security impact because:
3872
3873 1. Server and client random values still have 24 bytes of pseudo random
3874 data.
3875
3876 2. Server and client random values are sent in the clear in the initial
3877 handshake.
3878
3879 3. The master secret is derived using the premaster secret (48 bytes in
3880 size for static RSA ciphersuites) as well as client server and random
3881 values.
3882
3883 The OpenSSL team would like to thank the UK NISCC for bringing this issue
3884 to our attention.
3885
3886 [Stephen Henson, reported by UK NISCC]
3887
3888 *) Use Windows randomness collection on Cygwin.
3889 [Ulf Möller]
3890
3891 *) Fix hang in EGD/PRNGD query when communication socket is closed
3892 prematurely by EGD/PRNGD.
3893 [Darren Tucker <dtucker@zip.com.au> via Lutz Jänicke, resolves #1014]
3894
3895 *) Prompt for pass phrases when appropriate for PKCS12 input format.
3896 [Steve Henson]
3897
3898 *) Back-port of selected performance improvements from development
3899 branch, as well as improved support for PowerPC platforms.
3900 [Andy Polyakov]
3901
3902 *) Add lots of checks for memory allocation failure, error codes to indicate
3903 failure and freeing up memory if a failure occurs.
3904 [Nauticus Networks SSL Team <openssl@nauticusnet.com>, Steve Henson]
3905
3906 *) Add new -passin argument to dgst.
3907 [Steve Henson]
3908
3909 *) Perform some character comparisons of different types in X509_NAME_cmp:
3910 this is needed for some certificates that reencode DNs into UTF8Strings
3911 (in violation of RFC3280) and can't or wont issue name rollover
3912 certificates.
3913 [Steve Henson]
3914
3915 *) Make an explicit check during certificate validation to see that
3916 the CA setting in each certificate on the chain is correct. As a
3917 side effect always do the following basic checks on extensions,
3918 not just when there's an associated purpose to the check:
3919
3920 - if there is an unhandled critical extension (unless the user
3921 has chosen to ignore this fault)
3922 - if the path length has been exceeded (if one is set at all)
3923 - that certain extensions fit the associated purpose (if one has
3924 been given)
3925 [Richard Levitte]
3926
3927 Changes between 0.9.7d and 0.9.7e [25 Oct 2004]
3928
3929 *) Avoid a race condition when CRLs are checked in a multi threaded
3930 environment. This would happen due to the reordering of the revoked
3931 entries during signature checking and serial number lookup. Now the
3932 encoding is cached and the serial number sort performed under a lock.
3933 Add new STACK function sk_is_sorted().
3934 [Steve Henson]
3935
3936 *) Add Delta CRL to the extension code.
3937 [Steve Henson]
3938
3939 *) Various fixes to s3_pkt.c so alerts are sent properly.
3940 [David Holmes <d.holmes@f5.com>]
3941
3942 *) Reduce the chances of duplicate issuer name and serial numbers (in
3943 violation of RFC3280) using the OpenSSL certificate creation utilities.
3944 This is done by creating a random 64 bit value for the initial serial
3945 number when a serial number file is created or when a self signed
3946 certificate is created using 'openssl req -x509'. The initial serial
3947 number file is created using 'openssl x509 -next_serial' in CA.pl
3948 rather than being initialized to 1.
3949 [Steve Henson]
3950
3951 Changes between 0.9.7c and 0.9.7d [17 Mar 2004]
3952
3953 *) Fix null-pointer assignment in do_change_cipher_spec() revealed
3954 by using the Codenomicon TLS Test Tool (CVE-2004-0079)
3955 [Joe Orton, Steve Henson]
3956
3957 *) Fix flaw in SSL/TLS handshaking when using Kerberos ciphersuites
3958 (CVE-2004-0112)
3959 [Joe Orton, Steve Henson]
3960
3961 *) Make it possible to have multiple active certificates with the same
3962 subject in the CA index file. This is done only if the keyword
3963 'unique_subject' is set to 'no' in the main CA section (default
3964 if 'CA_default') of the configuration file. The value is saved
3965 with the database itself in a separate index attribute file,
3966 named like the index file with '.attr' appended to the name.
3967 [Richard Levitte]
3968
3969 *) X509 verify fixes. Disable broken certificate workarounds when
3970 X509_V_FLAGS_X509_STRICT is set. Check CRL issuer has cRLSign set if
3971 keyUsage extension present. Don't accept CRLs with unhandled critical
3972 extensions: since verify currently doesn't process CRL extensions this
3973 rejects a CRL with *any* critical extensions. Add new verify error codes
3974 for these cases.
3975 [Steve Henson]
3976
3977 *) When creating an OCSP nonce use an OCTET STRING inside the extnValue.
3978 A clarification of RFC2560 will require the use of OCTET STRINGs and
3979 some implementations cannot handle the current raw format. Since OpenSSL
3980 copies and compares OCSP nonces as opaque blobs without any attempt at
3981 parsing them this should not create any compatibility issues.
3982 [Steve Henson]
3983
3984 *) New md flag EVP_MD_CTX_FLAG_REUSE this allows md_data to be reused when
3985 calling EVP_MD_CTX_copy_ex() to avoid calling OPENSSL_malloc(). Without
3986 this HMAC (and other) operations are several times slower than OpenSSL
3987 < 0.9.7.
3988 [Steve Henson]
3989
3990 *) Print out GeneralizedTime and UTCTime in ASN1_STRING_print_ex().
3991 [Peter Sylvester <Peter.Sylvester@EdelWeb.fr>]
3992
3993 *) Use the correct content when signing type "other".
3994 [Steve Henson]
3995
3996 Changes between 0.9.7b and 0.9.7c [30 Sep 2003]
3997
3998 *) Fix various bugs revealed by running the NISCC test suite:
3999
4000 Stop out of bounds reads in the ASN1 code when presented with
4001 invalid tags (CVE-2003-0543 and CVE-2003-0544).
4002
4003 Free up ASN1_TYPE correctly if ANY type is invalid (CVE-2003-0545).
4004
4005 If verify callback ignores invalid public key errors don't try to check
4006 certificate signature with the NULL public key.
4007
4008 [Steve Henson]
4009
4010 *) New -ignore_err option in ocsp application to stop the server
4011 exiting on the first error in a request.
4012 [Steve Henson]
4013
4014 *) In ssl3_accept() (ssl/s3_srvr.c) only accept a client certificate
4015 if the server requested one: as stated in TLS 1.0 and SSL 3.0
4016 specifications.
4017 [Steve Henson]
4018
4019 *) In ssl3_get_client_hello() (ssl/s3_srvr.c), tolerate additional
4020 extra data after the compression methods not only for TLS 1.0
4021 but also for SSL 3.0 (as required by the specification).
4022 [Bodo Moeller; problem pointed out by Matthias Loepfe]
4023
4024 *) Change X509_certificate_type() to mark the key as exported/exportable
4025 when it's 512 *bits* long, not 512 bytes.
4026 [Richard Levitte]
4027
4028 *) Change AES_cbc_encrypt() so it outputs exact multiple of
4029 blocks during encryption.
4030 [Richard Levitte]
4031
4032 *) Various fixes to base64 BIO and non blocking I/O. On write
4033 flushes were not handled properly if the BIO retried. On read
4034 data was not being buffered properly and had various logic bugs.
4035 This also affects blocking I/O when the data being decoded is a
4036 certain size.
4037 [Steve Henson]
4038
4039 *) Various S/MIME bugfixes and compatibility changes:
4040 output correct application/pkcs7 MIME type if
4041 PKCS7_NOOLDMIMETYPE is set. Tolerate some broken signatures.
4042 Output CR+LF for EOL if PKCS7_CRLFEOL is set (this makes opening
4043 of files as .eml work). Correctly handle very long lines in MIME
4044 parser.
4045 [Steve Henson]
4046
4047 Changes between 0.9.7a and 0.9.7b [10 Apr 2003]
4048
4049 *) Countermeasure against the Klima-Pokorny-Rosa extension of
4050 Bleichbacher's attack on PKCS #1 v1.5 padding: treat
4051 a protocol version number mismatch like a decryption error
4052 in ssl3_get_client_key_exchange (ssl/s3_srvr.c).
4053 [Bodo Moeller]
4054
4055 *) Turn on RSA blinding by default in the default implementation
4056 to avoid a timing attack. Applications that don't want it can call
4057 RSA_blinding_off() or use the new flag RSA_FLAG_NO_BLINDING.
4058 They would be ill-advised to do so in most cases.
4059 [Ben Laurie, Steve Henson, Geoff Thorpe, Bodo Moeller]
4060
4061 *) Change RSA blinding code so that it works when the PRNG is not
4062 seeded (in this case, the secret RSA exponent is abused as
4063 an unpredictable seed -- if it is not unpredictable, there
4064 is no point in blinding anyway). Make RSA blinding thread-safe
4065 by remembering the creator's thread ID in rsa->blinding and
4066 having all other threads use local one-time blinding factors
4067 (this requires more computation than sharing rsa->blinding, but
4068 avoids excessive locking; and if an RSA object is not shared
4069 between threads, blinding will still be very fast).
4070 [Bodo Moeller]
4071
4072 *) Fixed a typo bug that would cause ENGINE_set_default() to set an
4073 ENGINE as defaults for all supported algorithms irrespective of
4074 the 'flags' parameter. 'flags' is now honoured, so applications
4075 should make sure they are passing it correctly.
4076 [Geoff Thorpe]
4077
4078 *) Target "mingw" now allows native Windows code to be generated in
4079 the Cygwin environment as well as with the MinGW compiler.
4080 [Ulf Moeller]
4081
4082 Changes between 0.9.7 and 0.9.7a [19 Feb 2003]
4083
4084 *) In ssl3_get_record (ssl/s3_pkt.c), minimize information leaked
4085 via timing by performing a MAC computation even if incorrrect
4086 block cipher padding has been found. This is a countermeasure
4087 against active attacks where the attacker has to distinguish
4088 between bad padding and a MAC verification error. (CVE-2003-0078)
4089
4090 [Bodo Moeller; problem pointed out by Brice Canvel (EPFL),
4091 Alain Hiltgen (UBS), Serge Vaudenay (EPFL), and
4092 Martin Vuagnoux (EPFL, Ilion)]
4093
4094 *) Make the no-err option work as intended. The intention with no-err
4095 is not to have the whole error stack handling routines removed from
4096 libcrypto, it's only intended to remove all the function name and
4097 reason texts, thereby removing some of the footprint that may not
4098 be interesting if those errors aren't displayed anyway.
4099
4100 NOTE: it's still possible for any application or module to have it's
4101 own set of error texts inserted. The routines are there, just not
4102 used by default when no-err is given.
4103 [Richard Levitte]
4104
4105 *) Add support for FreeBSD on IA64.
4106 [dirk.meyer@dinoex.sub.org via Richard Levitte, resolves #454]
4107
4108 *) Adjust DES_cbc_cksum() so it returns the same value as the MIT
4109 Kerberos function mit_des_cbc_cksum(). Before this change,
4110 the value returned by DES_cbc_cksum() was like the one from
4111 mit_des_cbc_cksum(), except the bytes were swapped.
4112 [Kevin Greaney <Kevin.Greaney@hp.com> and Richard Levitte]
4113
4114 *) Allow an application to disable the automatic SSL chain building.
4115 Before this a rather primitive chain build was always performed in
4116 ssl3_output_cert_chain(): an application had no way to send the
4117 correct chain if the automatic operation produced an incorrect result.
4118
4119 Now the chain builder is disabled if either:
4120
4121 1. Extra certificates are added via SSL_CTX_add_extra_chain_cert().
4122
4123 2. The mode flag SSL_MODE_NO_AUTO_CHAIN is set.
4124
4125 The reasoning behind this is that an application would not want the
4126 auto chain building to take place if extra chain certificates are
4127 present and it might also want a means of sending no additional
4128 certificates (for example the chain has two certificates and the
4129 root is omitted).
4130 [Steve Henson]
4131
4132 *) Add the possibility to build without the ENGINE framework.
4133 [Steven Reddie <smr@essemer.com.au> via Richard Levitte]
4134
4135 *) Under Win32 gmtime() can return NULL: check return value in
4136 OPENSSL_gmtime(). Add error code for case where gmtime() fails.
4137 [Steve Henson]
4138
4139 *) DSA routines: under certain error conditions uninitialized BN objects
4140 could be freed. Solution: make sure initialization is performed early
4141 enough. (Reported and fix supplied by Ivan D Nestlerode <nestler@MIT.EDU>,
4142 Nils Larsch <nla@trustcenter.de> via PR#459)
4143 [Lutz Jaenicke]
4144
4145 *) Another fix for SSLv2 session ID handling: the session ID was incorrectly
4146 checked on reconnect on the client side, therefore session resumption
4147 could still fail with a "ssl session id is different" error. This
4148 behaviour is masked when SSL_OP_ALL is used due to
4149 SSL_OP_MICROSOFT_SESS_ID_BUG being set.
4150 Behaviour observed by Crispin Flowerday <crispin@flowerday.cx> as
4151 followup to PR #377.
4152 [Lutz Jaenicke]
4153
4154 *) IA-32 assembler support enhancements: unified ELF targets, support
4155 for SCO/Caldera platforms, fix for Cygwin shared build.
4156 [Andy Polyakov]
4157
4158 *) Add support for FreeBSD on sparc64. As a consequence, support for
4159 FreeBSD on non-x86 processors is separate from x86 processors on
4160 the config script, much like the NetBSD support.
4161 [Richard Levitte & Kris Kennaway <kris@obsecurity.org>]
4162
4163 Changes between 0.9.6h and 0.9.7 [31 Dec 2002]
4164
4165 [NB: OpenSSL 0.9.6i and later 0.9.6 patch levels were released after
4166 OpenSSL 0.9.7.]
4167
4168 *) Fix session ID handling in SSLv2 client code: the SERVER FINISHED
4169 code (06) was taken as the first octet of the session ID and the last
4170 octet was ignored consequently. As a result SSLv2 client side session
4171 caching could not have worked due to the session ID mismatch between
4172 client and server.
4173 Behaviour observed by Crispin Flowerday <crispin@flowerday.cx> as
4174 PR #377.
4175 [Lutz Jaenicke]
4176
4177 *) Change the declaration of needed Kerberos libraries to use EX_LIBS
4178 instead of the special (and badly supported) LIBKRB5. LIBKRB5 is
4179 removed entirely.
4180 [Richard Levitte]
4181
4182 *) The hw_ncipher.c engine requires dynamic locks. Unfortunately, it
4183 seems that in spite of existing for more than a year, many application
4184 author have done nothing to provide the necessary callbacks, which
4185 means that this particular engine will not work properly anywhere.
4186 This is a very unfortunate situation which forces us, in the name
4187 of usability, to give the hw_ncipher.c a static lock, which is part
4188 of libcrypto.
4189 NOTE: This is for the 0.9.7 series ONLY. This hack will never
4190 appear in 0.9.8 or later. We EXPECT application authors to have
4191 dealt properly with this when 0.9.8 is released (unless we actually
4192 make such changes in the libcrypto locking code that changes will
4193 have to be made anyway).
4194 [Richard Levitte]
4195
4196 *) In asn1_d2i_read_bio() repeatedly call BIO_read() until all content
4197 octets have been read, EOF or an error occurs. Without this change
4198 some truncated ASN1 structures will not produce an error.
4199 [Steve Henson]
4200
4201 *) Disable Heimdal support, since it hasn't been fully implemented.
4202 Still give the possibility to force the use of Heimdal, but with
4203 warnings and a request that patches get sent to openssl-dev.
4204 [Richard Levitte]
4205
4206 *) Add the VC-CE target, introduce the WINCE sysname, and add
4207 INSTALL.WCE and appropriate conditionals to make it build.
4208 [Steven Reddie <smr@essemer.com.au> via Richard Levitte]
4209
4210 *) Change the DLL names for Cygwin to cygcrypto-x.y.z.dll and
4211 cygssl-x.y.z.dll, where x, y and z are the major, minor and
4212 edit numbers of the version.
4213 [Corinna Vinschen <vinschen@redhat.com> and Richard Levitte]
4214
4215 *) Introduce safe string copy and catenation functions
4216 (BUF_strlcpy() and BUF_strlcat()).
4217 [Ben Laurie (CHATS) and Richard Levitte]
4218
4219 *) Avoid using fixed-size buffers for one-line DNs.
4220 [Ben Laurie (CHATS)]
4221
4222 *) Add BUF_MEM_grow_clean() to avoid information leakage when
4223 resizing buffers containing secrets, and use where appropriate.
4224 [Ben Laurie (CHATS)]
4225
4226 *) Avoid using fixed size buffers for configuration file location.
4227 [Ben Laurie (CHATS)]
4228
4229 *) Avoid filename truncation for various CA files.
4230 [Ben Laurie (CHATS)]
4231
4232 *) Use sizeof in preference to magic numbers.
4233 [Ben Laurie (CHATS)]
4234
4235 *) Avoid filename truncation in cert requests.
4236 [Ben Laurie (CHATS)]
4237
4238 *) Add assertions to check for (supposedly impossible) buffer
4239 overflows.
4240 [Ben Laurie (CHATS)]
4241
4242 *) Don't cache truncated DNS entries in the local cache (this could
4243 potentially lead to a spoofing attack).
4244 [Ben Laurie (CHATS)]
4245
4246 *) Fix various buffers to be large enough for hex/decimal
4247 representations in a platform independent manner.
4248 [Ben Laurie (CHATS)]
4249
4250 *) Add CRYPTO_realloc_clean() to avoid information leakage when
4251 resizing buffers containing secrets, and use where appropriate.
4252 [Ben Laurie (CHATS)]
4253
4254 *) Add BIO_indent() to avoid much slightly worrying code to do
4255 indents.
4256 [Ben Laurie (CHATS)]
4257
4258 *) Convert sprintf()/BIO_puts() to BIO_printf().
4259 [Ben Laurie (CHATS)]
4260
4261 *) buffer_gets() could terminate with the buffer only half
4262 full. Fixed.
4263 [Ben Laurie (CHATS)]
4264
4265 *) Add assertions to prevent user-supplied crypto functions from
4266 overflowing internal buffers by having large block sizes, etc.
4267 [Ben Laurie (CHATS)]
4268
4269 *) New OPENSSL_assert() macro (similar to assert(), but enabled
4270 unconditionally).
4271 [Ben Laurie (CHATS)]
4272
4273 *) Eliminate unused copy of key in RC4.
4274 [Ben Laurie (CHATS)]
4275
4276 *) Eliminate unused and incorrectly sized buffers for IV in pem.h.
4277 [Ben Laurie (CHATS)]
4278
4279 *) Fix off-by-one error in EGD path.
4280 [Ben Laurie (CHATS)]
4281
4282 *) If RANDFILE path is too long, ignore instead of truncating.
4283 [Ben Laurie (CHATS)]
4284
4285 *) Eliminate unused and incorrectly sized X.509 structure
4286 CBCParameter.
4287 [Ben Laurie (CHATS)]
4288
4289 *) Eliminate unused and dangerous function knumber().
4290 [Ben Laurie (CHATS)]
4291
4292 *) Eliminate unused and dangerous structure, KSSL_ERR.
4293 [Ben Laurie (CHATS)]
4294
4295 *) Protect against overlong session ID context length in an encoded
4296 session object. Since these are local, this does not appear to be
4297 exploitable.
4298 [Ben Laurie (CHATS)]
4299
4300 *) Change from security patch (see 0.9.6e below) that did not affect
4301 the 0.9.6 release series:
4302
4303 Remote buffer overflow in SSL3 protocol - an attacker could
4304 supply an oversized master key in Kerberos-enabled versions.
4305 (CVE-2002-0657)
4306 [Ben Laurie (CHATS)]
4307
4308 *) Change the SSL kerb5 codes to match RFC 2712.
4309 [Richard Levitte]
4310
4311 *) Make -nameopt work fully for req and add -reqopt switch.
4312 [Michael Bell <michael.bell@rz.hu-berlin.de>, Steve Henson]
4313
4314 *) The "block size" for block ciphers in CFB and OFB mode should be 1.
4315 [Steve Henson, reported by Yngve Nysaeter Pettersen <yngve@opera.com>]
4316
4317 *) Make sure tests can be performed even if the corresponding algorithms
4318 have been removed entirely. This was also the last step to make
4319 OpenSSL compilable with DJGPP under all reasonable conditions.
4320 [Richard Levitte, Doug Kaufman <dkaufman@rahul.net>]
4321
4322 *) Add cipher selection rules COMPLEMENTOFALL and COMPLEMENTOFDEFAULT
4323 to allow version independent disabling of normally unselected ciphers,
4324 which may be activated as a side-effect of selecting a single cipher.
4325
4326 (E.g., cipher list string "RSA" enables ciphersuites that are left
4327 out of "ALL" because they do not provide symmetric encryption.
4328 "RSA:!COMPLEMEMENTOFALL" avoids these unsafe ciphersuites.)
4329 [Lutz Jaenicke, Bodo Moeller]
4330
4331 *) Add appropriate support for separate platform-dependent build
4332 directories. The recommended way to make a platform-dependent
4333 build directory is the following (tested on Linux), maybe with
4334 some local tweaks:
4335
4336 # Place yourself outside of the OpenSSL source tree. In
4337 # this example, the environment variable OPENSSL_SOURCE
4338 # is assumed to contain the absolute OpenSSL source directory.
4339 mkdir -p objtree/"`uname -s`-`uname -r`-`uname -m`"
4340 cd objtree/"`uname -s`-`uname -r`-`uname -m`"
4341 (cd $OPENSSL_SOURCE; find . -type f) | while read F; do
4342 mkdir -p `dirname $F`
4343 ln -s $OPENSSL_SOURCE/$F $F
4344 done
4345
4346 To be absolutely sure not to disturb the source tree, a "make clean"
4347 is a good thing. If it isn't successfull, don't worry about it,
4348 it probably means the source directory is very clean.
4349 [Richard Levitte]
4350
4351 *) Make sure any ENGINE control commands make local copies of string
4352 pointers passed to them whenever necessary. Otherwise it is possible
4353 the caller may have overwritten (or deallocated) the original string
4354 data when a later ENGINE operation tries to use the stored values.
4355 [Götz Babin-Ebell <babinebell@trustcenter.de>]
4356
4357 *) Improve diagnostics in file reading and command-line digests.
4358 [Ben Laurie aided and abetted by Solar Designer <solar@openwall.com>]
4359
4360 *) Add AES modes CFB and OFB to the object database. Correct an
4361 error in AES-CFB decryption.
4362 [Richard Levitte]
4363
4364 *) Remove most calls to EVP_CIPHER_CTX_cleanup() in evp_enc.c, this
4365 allows existing EVP_CIPHER_CTX structures to be reused after
4366 calling EVP_*Final(). This behaviour is used by encryption
4367 BIOs and some applications. This has the side effect that
4368 applications must explicitly clean up cipher contexts with
4369 EVP_CIPHER_CTX_cleanup() or they will leak memory.
4370 [Steve Henson]
4371
4372 *) Check the values of dna and dnb in bn_mul_recursive before calling
4373 bn_mul_comba (a non zero value means the a or b arrays do not contain
4374 n2 elements) and fallback to bn_mul_normal if either is not zero.
4375 [Steve Henson]
4376
4377 *) Fix escaping of non-ASCII characters when using the -subj option
4378 of the "openssl req" command line tool. (Robert Joop <joop@fokus.gmd.de>)
4379 [Lutz Jaenicke]
4380
4381 *) Make object definitions compliant to LDAP (RFC2256): SN is the short
4382 form for "surname", serialNumber has no short form.
4383 Use "mail" as the short name for "rfc822Mailbox" according to RFC2798;
4384 therefore remove "mail" short name for "internet 7".
4385 The OID for unique identifiers in X509 certificates is
4386 x500UniqueIdentifier, not uniqueIdentifier.
4387 Some more OID additions. (Michael Bell <michael.bell@rz.hu-berlin.de>)
4388 [Lutz Jaenicke]
4389
4390 *) Add an "init" command to the ENGINE config module and auto initialize
4391 ENGINEs. Without any "init" command the ENGINE will be initialized
4392 after all ctrl commands have been executed on it. If init=1 the
4393 ENGINE is initailized at that point (ctrls before that point are run
4394 on the uninitialized ENGINE and after on the initialized one). If
4395 init=0 then the ENGINE will not be iniatialized at all.
4396 [Steve Henson]
4397
4398 *) Fix the 'app_verify_callback' interface so that the user-defined
4399 argument is actually passed to the callback: In the
4400 SSL_CTX_set_cert_verify_callback() prototype, the callback
4401 declaration has been changed from
4402 int (*cb)()
4403 into
4404 int (*cb)(X509_STORE_CTX *,void *);
4405 in ssl_verify_cert_chain (ssl/ssl_cert.c), the call
4406 i=s->ctx->app_verify_callback(&ctx)
4407 has been changed into
4408 i=s->ctx->app_verify_callback(&ctx, s->ctx->app_verify_arg).
4409
4410 To update applications using SSL_CTX_set_cert_verify_callback(),
4411 a dummy argument can be added to their callback functions.
4412 [D. K. Smetters <smetters@parc.xerox.com>]
4413
4414 *) Added the '4758cca' ENGINE to support IBM 4758 cards.
4415 [Maurice Gittens <maurice@gittens.nl>, touchups by Geoff Thorpe]
4416
4417 *) Add and OPENSSL_LOAD_CONF define which will cause
4418 OpenSSL_add_all_algorithms() to load the openssl.cnf config file.
4419 This allows older applications to transparently support certain
4420 OpenSSL features: such as crypto acceleration and dynamic ENGINE loading.
4421 Two new functions OPENSSL_add_all_algorithms_noconf() which will never
4422 load the config file and OPENSSL_add_all_algorithms_conf() which will
4423 always load it have also been added.
4424 [Steve Henson]
4425
4426 *) Add the OFB, CFB and CTR (all with 128 bit feedback) to AES.
4427 Adjust NIDs and EVP layer.
4428 [Stephen Sprunk <stephen@sprunk.org> and Richard Levitte]
4429
4430 *) Config modules support in openssl utility.
4431
4432 Most commands now load modules from the config file,
4433 though in a few (such as version) this isn't done
4434 because it couldn't be used for anything.
4435
4436 In the case of ca and req the config file used is
4437 the same as the utility itself: that is the -config
4438 command line option can be used to specify an
4439 alternative file.
4440 [Steve Henson]
4441
4442 *) Move default behaviour from OPENSSL_config(). If appname is NULL
4443 use "openssl_conf" if filename is NULL use default openssl config file.
4444 [Steve Henson]
4445
4446 *) Add an argument to OPENSSL_config() to allow the use of an alternative
4447 config section name. Add a new flag to tolerate a missing config file
4448 and move code to CONF_modules_load_file().
4449 [Steve Henson]
4450
4451 *) Support for crypto accelerator cards from Accelerated Encryption
4452 Processing, www.aep.ie. (Use engine 'aep')
4453 The support was copied from 0.9.6c [engine] and adapted/corrected
4454 to work with the new engine framework.
4455 [AEP Inc. and Richard Levitte]
4456
4457 *) Support for SureWare crypto accelerator cards from Baltimore
4458 Technologies. (Use engine 'sureware')
4459 The support was copied from 0.9.6c [engine] and adapted
4460 to work with the new engine framework.
4461 [Richard Levitte]
4462
4463 *) Have the CHIL engine fork-safe (as defined by nCipher) and actually
4464 make the newer ENGINE framework commands for the CHIL engine work.
4465 [Toomas Kiisk <vix@cyber.ee> and Richard Levitte]
4466
4467 *) Make it possible to produce shared libraries on ReliantUNIX.
4468 [Robert Dahlem <Robert.Dahlem@ffm2.siemens.de> via Richard Levitte]
4469
4470 *) Add the configuration target debug-linux-ppro.
4471 Make 'openssl rsa' use the general key loading routines
4472 implemented in apps.c, and make those routines able to
4473 handle the key format FORMAT_NETSCAPE and the variant
4474 FORMAT_IISSGC.
4475 [Toomas Kiisk <vix@cyber.ee> via Richard Levitte]
4476
4477 *) Fix a crashbug and a logic bug in hwcrhk_load_pubkey().
4478 [Toomas Kiisk <vix@cyber.ee> via Richard Levitte]
4479
4480 *) Add -keyform to rsautl, and document -engine.
4481 [Richard Levitte, inspired by Toomas Kiisk <vix@cyber.ee>]
4482
4483 *) Change BIO_new_file (crypto/bio/bss_file.c) to use new
4484 BIO_R_NO_SUCH_FILE error code rather than the generic
4485 ERR_R_SYS_LIB error code if fopen() fails with ENOENT.
4486 [Ben Laurie]
4487
4488 *) Add new functions
4489 ERR_peek_last_error
4490 ERR_peek_last_error_line
4491 ERR_peek_last_error_line_data.
4492 These are similar to
4493 ERR_peek_error
4494 ERR_peek_error_line
4495 ERR_peek_error_line_data,
4496 but report on the latest error recorded rather than the first one
4497 still in the error queue.
4498 [Ben Laurie, Bodo Moeller]
4499
4500 *) default_algorithms option in ENGINE config module. This allows things
4501 like:
4502 default_algorithms = ALL
4503 default_algorithms = RSA, DSA, RAND, CIPHERS, DIGESTS
4504 [Steve Henson]
4505
4506 *) Prelminary ENGINE config module.
4507 [Steve Henson]
4508
4509 *) New experimental application configuration code.
4510 [Steve Henson]
4511
4512 *) Change the AES code to follow the same name structure as all other
4513 symmetric ciphers, and behave the same way. Move everything to
4514 the directory crypto/aes, thereby obsoleting crypto/rijndael.
4515 [Stephen Sprunk <stephen@sprunk.org> and Richard Levitte]
4516
4517 *) SECURITY: remove unsafe setjmp/signal interaction from ui_openssl.c.
4518 [Ben Laurie and Theo de Raadt]
4519
4520 *) Add option to output public keys in req command.
4521 [Massimiliano Pala madwolf@openca.org]
4522
4523 *) Use wNAFs in EC_POINTs_mul() for improved efficiency
4524 (up to about 10% better than before for P-192 and P-224).
4525 [Bodo Moeller]
4526
4527 *) New functions/macros
4528
4529 SSL_CTX_set_msg_callback(ctx, cb)
4530 SSL_CTX_set_msg_callback_arg(ctx, arg)
4531 SSL_set_msg_callback(ssl, cb)
4532 SSL_set_msg_callback_arg(ssl, arg)
4533
4534 to request calling a callback function
4535
4536 void cb(int write_p, int version, int content_type,
4537 const void *buf, size_t len, SSL *ssl, void *arg)
4538
4539 whenever a protocol message has been completely received
4540 (write_p == 0) or sent (write_p == 1). Here 'version' is the
4541 protocol version according to which the SSL library interprets
4542 the current protocol message (SSL2_VERSION, SSL3_VERSION, or
4543 TLS1_VERSION). 'content_type' is 0 in the case of SSL 2.0, or
4544 the content type as defined in the SSL 3.0/TLS 1.0 protocol
4545 specification (change_cipher_spec(20), alert(21), handshake(22)).
4546 'buf' and 'len' point to the actual message, 'ssl' to the
4547 SSL object, and 'arg' is the application-defined value set by
4548 SSL[_CTX]_set_msg_callback_arg().
4549
4550 'openssl s_client' and 'openssl s_server' have new '-msg' options
4551 to enable a callback that displays all protocol messages.
4552 [Bodo Moeller]
4553
4554 *) Change the shared library support so shared libraries are built as
4555 soon as the corresponding static library is finished, and thereby get
4556 openssl and the test programs linked against the shared library.
4557 This still only happens when the keyword "shard" has been given to
4558 the configuration scripts.
4559
4560 NOTE: shared library support is still an experimental thing, and
4561 backward binary compatibility is still not guaranteed.
4562 ["Maciej W. Rozycki" <macro@ds2.pg.gda.pl> and Richard Levitte]
4563
4564 *) Add support for Subject Information Access extension.
4565 [Peter Sylvester <Peter.Sylvester@EdelWeb.fr>]
4566
4567 *) Make BUF_MEM_grow() behaviour more consistent: Initialise to zero
4568 additional bytes when new memory had to be allocated, not just
4569 when reusing an existing buffer.
4570 [Bodo Moeller]
4571
4572 *) New command line and configuration option 'utf8' for the req command.
4573 This allows field values to be specified as UTF8 strings.
4574 [Steve Henson]
4575
4576 *) Add -multi and -mr options to "openssl speed" - giving multiple parallel
4577 runs for the former and machine-readable output for the latter.
4578 [Ben Laurie]
4579
4580 *) Add '-noemailDN' option to 'openssl ca'. This prevents inclusion
4581 of the e-mail address in the DN (i.e., it will go into a certificate
4582 extension only). The new configuration file option 'email_in_dn = no'
4583 has the same effect.
4584 [Massimiliano Pala madwolf@openca.org]
4585
4586 *) Change all functions with names starting with des_ to be starting
4587 with DES_ instead. Add wrappers that are compatible with libdes,
4588 but are named _ossl_old_des_*. Finally, add macros that map the
4589 des_* symbols to the corresponding _ossl_old_des_* if libdes
4590 compatibility is desired. If OpenSSL 0.9.6c compatibility is
4591 desired, the des_* symbols will be mapped to DES_*, with one
4592 exception.
4593
4594 Since we provide two compatibility mappings, the user needs to
4595 define the macro OPENSSL_DES_LIBDES_COMPATIBILITY if libdes
4596 compatibility is desired. The default (i.e., when that macro
4597 isn't defined) is OpenSSL 0.9.6c compatibility.
4598
4599 There are also macros that enable and disable the support of old
4600 des functions altogether. Those are OPENSSL_ENABLE_OLD_DES_SUPPORT
4601 and OPENSSL_DISABLE_OLD_DES_SUPPORT. If none or both of those
4602 are defined, the default will apply: to support the old des routines.
4603
4604 In either case, one must include openssl/des.h to get the correct
4605 definitions. Do not try to just include openssl/des_old.h, that
4606 won't work.
4607
4608 NOTE: This is a major break of an old API into a new one. Software
4609 authors are encouraged to switch to the DES_ style functions. Some
4610 time in the future, des_old.h and the libdes compatibility functions
4611 will be disable (i.e. OPENSSL_DISABLE_OLD_DES_SUPPORT will be the
4612 default), and then completely removed.
4613 [Richard Levitte]
4614
4615 *) Test for certificates which contain unsupported critical extensions.
4616 If such a certificate is found during a verify operation it is
4617 rejected by default: this behaviour can be overridden by either
4618 handling the new error X509_V_ERR_UNHANDLED_CRITICAL_EXTENSION or
4619 by setting the verify flag X509_V_FLAG_IGNORE_CRITICAL. A new function
4620 X509_supported_extension() has also been added which returns 1 if a
4621 particular extension is supported.
4622 [Steve Henson]
4623
4624 *) Modify the behaviour of EVP cipher functions in similar way to digests
4625 to retain compatibility with existing code.
4626 [Steve Henson]
4627
4628 *) Modify the behaviour of EVP_DigestInit() and EVP_DigestFinal() to retain
4629 compatibility with existing code. In particular the 'ctx' parameter does
4630 not have to be to be initialized before the call to EVP_DigestInit() and
4631 it is tidied up after a call to EVP_DigestFinal(). New function
4632 EVP_DigestFinal_ex() which does not tidy up the ctx. Similarly function
4633 EVP_MD_CTX_copy() changed to not require the destination to be
4634 initialized valid and new function EVP_MD_CTX_copy_ex() added which
4635 requires the destination to be valid.
4636
4637 Modify all the OpenSSL digest calls to use EVP_DigestInit_ex(),
4638 EVP_DigestFinal_ex() and EVP_MD_CTX_copy_ex().
4639 [Steve Henson]
4640
4641 *) Change ssl3_get_message (ssl/s3_both.c) and the functions using it
4642 so that complete 'Handshake' protocol structures are kept in memory
4643 instead of overwriting 'msg_type' and 'length' with 'body' data.
4644 [Bodo Moeller]
4645
4646 *) Add an implementation of SSL_add_dir_cert_subjects_to_stack for Win32.
4647 [Massimo Santin via Richard Levitte]
4648
4649 *) Major restructuring to the underlying ENGINE code. This includes
4650 reduction of linker bloat, separation of pure "ENGINE" manipulation
4651 (initialisation, etc) from functionality dealing with implementations
4652 of specific crypto iterfaces. This change also introduces integrated
4653 support for symmetric ciphers and digest implementations - so ENGINEs
4654 can now accelerate these by providing EVP_CIPHER and EVP_MD
4655 implementations of their own. This is detailed in crypto/engine/README
4656 as it couldn't be adequately described here. However, there are a few
4657 API changes worth noting - some RSA, DSA, DH, and RAND functions that
4658 were changed in the original introduction of ENGINE code have now
4659 reverted back - the hooking from this code to ENGINE is now a good
4660 deal more passive and at run-time, operations deal directly with
4661 RSA_METHODs, DSA_METHODs (etc) as they did before, rather than
4662 dereferencing through an ENGINE pointer any more. Also, the ENGINE
4663 functions dealing with BN_MOD_EXP[_CRT] handlers have been removed -
4664 they were not being used by the framework as there is no concept of a
4665 BIGNUM_METHOD and they could not be generalised to the new
4666 'ENGINE_TABLE' mechanism that underlies the new code. Similarly,
4667 ENGINE_cpy() has been removed as it cannot be consistently defined in
4668 the new code.
4669 [Geoff Thorpe]
4670
4671 *) Change ASN1_GENERALIZEDTIME_check() to allow fractional seconds.
4672 [Steve Henson]
4673
4674 *) Change mkdef.pl to sort symbols that get the same entry number,
4675 and make sure the automatically generated functions ERR_load_*
4676 become part of libeay.num as well.
4677 [Richard Levitte]
4678
4679 *) New function SSL_renegotiate_pending(). This returns true once
4680 renegotiation has been requested (either SSL_renegotiate() call
4681 or HelloRequest/ClientHello receveived from the peer) and becomes
4682 false once a handshake has been completed.
4683 (For servers, SSL_renegotiate() followed by SSL_do_handshake()
4684 sends a HelloRequest, but does not ensure that a handshake takes
4685 place. SSL_renegotiate_pending() is useful for checking if the
4686 client has followed the request.)
4687 [Bodo Moeller]
4688
4689 *) New SSL option SSL_OP_NO_SESSION_RESUMPTION_ON_RENEGOTIATION.
4690 By default, clients may request session resumption even during
4691 renegotiation (if session ID contexts permit); with this option,
4692 session resumption is possible only in the first handshake.
4693
4694 SSL_OP_ALL is now 0x00000FFFL instead of 0x000FFFFFL. This makes
4695 more bits available for options that should not be part of
4696 SSL_OP_ALL (such as SSL_OP_NO_SESSION_RESUMPTION_ON_RENEGOTIATION).
4697 [Bodo Moeller]
4698
4699 *) Add some demos for certificate and certificate request creation.
4700 [Steve Henson]
4701
4702 *) Make maximum certificate chain size accepted from the peer application
4703 settable (SSL*_get/set_max_cert_list()), as proposed by
4704 "Douglas E. Engert" <deengert@anl.gov>.
4705 [Lutz Jaenicke]
4706
4707 *) Add support for shared libraries for Unixware-7
4708 (Boyd Lynn Gerber <gerberb@zenez.com>).
4709 [Lutz Jaenicke]
4710
4711 *) Add a "destroy" handler to ENGINEs that allows structural cleanup to
4712 be done prior to destruction. Use this to unload error strings from
4713 ENGINEs that load their own error strings. NB: This adds two new API
4714 functions to "get" and "set" this destroy handler in an ENGINE.
4715 [Geoff Thorpe]
4716
4717 *) Alter all existing ENGINE implementations (except "openssl" and
4718 "openbsd") to dynamically instantiate their own error strings. This
4719 makes them more flexible to be built both as statically-linked ENGINEs
4720 and self-contained shared-libraries loadable via the "dynamic" ENGINE.
4721 Also, add stub code to each that makes building them as self-contained
4722 shared-libraries easier (see README.ENGINE).
4723 [Geoff Thorpe]
4724
4725 *) Add a "dynamic" ENGINE that provides a mechanism for binding ENGINE
4726 implementations into applications that are completely implemented in
4727 self-contained shared-libraries. The "dynamic" ENGINE exposes control
4728 commands that can be used to configure what shared-library to load and
4729 to control aspects of the way it is handled. Also, made an update to
4730 the README.ENGINE file that brings its information up-to-date and
4731 provides some information and instructions on the "dynamic" ENGINE
4732 (ie. how to use it, how to build "dynamic"-loadable ENGINEs, etc).
4733 [Geoff Thorpe]
4734
4735 *) Make it possible to unload ranges of ERR strings with a new
4736 "ERR_unload_strings" function.
4737 [Geoff Thorpe]
4738
4739 *) Add a copy() function to EVP_MD.
4740 [Ben Laurie]
4741
4742 *) Make EVP_MD routines take a context pointer instead of just the
4743 md_data void pointer.
4744 [Ben Laurie]
4745
4746 *) Add flags to EVP_MD and EVP_MD_CTX. EVP_MD_FLAG_ONESHOT indicates
4747 that the digest can only process a single chunk of data
4748 (typically because it is provided by a piece of
4749 hardware). EVP_MD_CTX_FLAG_ONESHOT indicates that the application
4750 is only going to provide a single chunk of data, and hence the
4751 framework needn't accumulate the data for oneshot drivers.
4752 [Ben Laurie]
4753
4754 *) As with "ERR", make it possible to replace the underlying "ex_data"
4755 functions. This change also alters the storage and management of global
4756 ex_data state - it's now all inside ex_data.c and all "class" code (eg.
4757 RSA, BIO, SSL_CTX, etc) no longer stores its own STACKS and per-class
4758 index counters. The API functions that use this state have been changed
4759 to take a "class_index" rather than pointers to the class's local STACK
4760 and counter, and there is now an API function to dynamically create new
4761 classes. This centralisation allows us to (a) plug a lot of the
4762 thread-safety problems that existed, and (b) makes it possible to clean
4763 up all allocated state using "CRYPTO_cleanup_all_ex_data()". W.r.t. (b)
4764 such data would previously have always leaked in application code and
4765 workarounds were in place to make the memory debugging turn a blind eye
4766 to it. Application code that doesn't use this new function will still
4767 leak as before, but their memory debugging output will announce it now
4768 rather than letting it slide.
4769
4770 Besides the addition of CRYPTO_cleanup_all_ex_data(), another API change
4771 induced by the "ex_data" overhaul is that X509_STORE_CTX_init() now
4772 has a return value to indicate success or failure.
4773 [Geoff Thorpe]
4774
4775 *) Make it possible to replace the underlying "ERR" functions such that the
4776 global state (2 LHASH tables and 2 locks) is only used by the "default"
4777 implementation. This change also adds two functions to "get" and "set"
4778 the implementation prior to it being automatically set the first time
4779 any other ERR function takes place. Ie. an application can call "get",
4780 pass the return value to a module it has just loaded, and that module
4781 can call its own "set" function using that value. This means the
4782 module's "ERR" operations will use (and modify) the error state in the
4783 application and not in its own statically linked copy of OpenSSL code.
4784 [Geoff Thorpe]
4785
4786 *) Give DH, DSA, and RSA types their own "**_up_ref()" function to increment
4787 reference counts. This performs normal REF_PRINT/REF_CHECK macros on
4788 the operation, and provides a more encapsulated way for external code
4789 (crypto/evp/ and ssl/) to do this. Also changed the evp and ssl code
4790 to use these functions rather than manually incrementing the counts.
4791
4792 Also rename "DSO_up()" function to more descriptive "DSO_up_ref()".
4793 [Geoff Thorpe]
4794
4795 *) Add EVP test program.
4796 [Ben Laurie]
4797
4798 *) Add symmetric cipher support to ENGINE. Expect the API to change!
4799 [Ben Laurie]
4800
4801 *) New CRL functions: X509_CRL_set_version(), X509_CRL_set_issuer_name()
4802 X509_CRL_set_lastUpdate(), X509_CRL_set_nextUpdate(), X509_CRL_sort(),
4803 X509_REVOKED_set_serialNumber(), and X509_REVOKED_set_revocationDate().
4804 These allow a CRL to be built without having to access X509_CRL fields
4805 directly. Modify 'ca' application to use new functions.
4806 [Steve Henson]
4807
4808 *) Move SSL_OP_TLS_ROLLBACK_BUG out of the SSL_OP_ALL list of recommended
4809 bug workarounds. Rollback attack detection is a security feature.
4810 The problem will only arise on OpenSSL servers when TLSv1 is not
4811 available (sslv3_server_method() or SSL_OP_NO_TLSv1).
4812 Software authors not wanting to support TLSv1 will have special reasons
4813 for their choice and can explicitly enable this option.
4814 [Bodo Moeller, Lutz Jaenicke]
4815
4816 *) Rationalise EVP so it can be extended: don't include a union of
4817 cipher/digest structures, add init/cleanup functions for EVP_MD_CTX
4818 (similar to those existing for EVP_CIPHER_CTX).
4819 Usage example:
4820
4821 EVP_MD_CTX md;
4822
4823 EVP_MD_CTX_init(&md); /* new function call */
4824 EVP_DigestInit(&md, EVP_sha1());
4825 EVP_DigestUpdate(&md, in, len);
4826 EVP_DigestFinal(&md, out, NULL);
4827 EVP_MD_CTX_cleanup(&md); /* new function call */
4828
4829 [Ben Laurie]
4830
4831 *) Make DES key schedule conform to the usual scheme, as well as
4832 correcting its structure. This means that calls to DES functions
4833 now have to pass a pointer to a des_key_schedule instead of a
4834 plain des_key_schedule (which was actually always a pointer
4835 anyway): E.g.,
4836
4837 des_key_schedule ks;
4838
4839 des_set_key_checked(..., &ks);
4840 des_ncbc_encrypt(..., &ks, ...);
4841
4842 (Note that a later change renames 'des_...' into 'DES_...'.)
4843 [Ben Laurie]
4844
4845 *) Initial reduction of linker bloat: the use of some functions, such as
4846 PEM causes large amounts of unused functions to be linked in due to
4847 poor organisation. For example pem_all.c contains every PEM function
4848 which has a knock on effect of linking in large amounts of (unused)
4849 ASN1 code. Grouping together similar functions and splitting unrelated
4850 functions prevents this.
4851 [Steve Henson]
4852
4853 *) Cleanup of EVP macros.
4854 [Ben Laurie]
4855
4856 *) Change historical references to {NID,SN,LN}_des_ede and ede3 to add the
4857 correct _ecb suffix.
4858 [Ben Laurie]
4859
4860 *) Add initial OCSP responder support to ocsp application. The
4861 revocation information is handled using the text based index
4862 use by the ca application. The responder can either handle
4863 requests generated internally, supplied in files (for example
4864 via a CGI script) or using an internal minimal server.
4865 [Steve Henson]
4866
4867 *) Add configuration choices to get zlib compression for TLS.
4868 [Richard Levitte]
4869
4870 *) Changes to Kerberos SSL for RFC 2712 compliance:
4871 1. Implemented real KerberosWrapper, instead of just using
4872 KRB5 AP_REQ message. [Thanks to Simon Wilkinson <sxw@sxw.org.uk>]
4873 2. Implemented optional authenticator field of KerberosWrapper.
4874
4875 Added openssl-style ASN.1 macros for Kerberos ticket, ap_req,
4876 and authenticator structs; see crypto/krb5/.
4877
4878 Generalized Kerberos calls to support multiple Kerberos libraries.
4879 [Vern Staats <staatsvr@asc.hpc.mil>,
4880 Jeffrey Altman <jaltman@columbia.edu>
4881 via Richard Levitte]
4882
4883 *) Cause 'openssl speed' to use fully hard-coded DSA keys as it
4884 already does with RSA. testdsa.h now has 'priv_key/pub_key'
4885 values for each of the key sizes rather than having just
4886 parameters (and 'speed' generating keys each time).
4887 [Geoff Thorpe]
4888
4889 *) Speed up EVP routines.
4890 Before:
4891 encrypt
4892 type 8 bytes 64 bytes 256 bytes 1024 bytes 8192 bytes
4893 des-cbc 4408.85k 5560.51k 5778.46k 5862.20k 5825.16k
4894 des-cbc 4389.55k 5571.17k 5792.23k 5846.91k 5832.11k
4895 des-cbc 4394.32k 5575.92k 5807.44k 5848.37k 5841.30k
4896 decrypt
4897 des-cbc 3482.66k 5069.49k 5496.39k 5614.16k 5639.28k
4898 des-cbc 3480.74k 5068.76k 5510.34k 5609.87k 5635.52k
4899 des-cbc 3483.72k 5067.62k 5504.60k 5708.01k 5724.80k
4900 After:
4901 encrypt
4902 des-cbc 4660.16k 5650.19k 5807.19k 5827.13k 5783.32k
4903 decrypt
4904 des-cbc 3624.96k 5258.21k 5530.91k 5624.30k 5628.26k
4905 [Ben Laurie]
4906
4907 *) Added the OS2-EMX target.
4908 ["Brian Havard" <brianh@kheldar.apana.org.au> and Richard Levitte]
4909
4910 *) Rewrite apps to use NCONF routines instead of the old CONF. New functions
4911 to support NCONF routines in extension code. New function CONF_set_nconf()
4912 to allow functions which take an NCONF to also handle the old LHASH
4913 structure: this means that the old CONF compatible routines can be
4914 retained (in particular wrt extensions) without having to duplicate the
4915 code. New function X509V3_add_ext_nconf_sk to add extensions to a stack.
4916 [Steve Henson]
4917
4918 *) Enhance the general user interface with mechanisms for inner control
4919 and with possibilities to have yes/no kind of prompts.
4920 [Richard Levitte]
4921
4922 *) Change all calls to low level digest routines in the library and
4923 applications to use EVP. Add missing calls to HMAC_cleanup() and
4924 don't assume HMAC_CTX can be copied using memcpy().
4925 [Verdon Walker <VWalker@novell.com>, Steve Henson]
4926
4927 *) Add the possibility to control engines through control names but with
4928 arbitrary arguments instead of just a string.
4929 Change the key loaders to take a UI_METHOD instead of a callback
4930 function pointer. NOTE: this breaks binary compatibility with earlier
4931 versions of OpenSSL [engine].
4932 Adapt the nCipher code for these new conditions and add a card insertion
4933 callback.
4934 [Richard Levitte]
4935
4936 *) Enhance the general user interface with mechanisms to better support
4937 dialog box interfaces, application-defined prompts, the possibility
4938 to use defaults (for example default passwords from somewhere else)
4939 and interrupts/cancellations.
4940 [Richard Levitte]
4941
4942 *) Tidy up PKCS#12 attribute handling. Add support for the CSP name
4943 attribute in PKCS#12 files, add new -CSP option to pkcs12 utility.
4944 [Steve Henson]
4945
4946 *) Fix a memory leak in 'sk_dup()' in the case reallocation fails. (Also
4947 tidy up some unnecessarily weird code in 'sk_new()').
4948 [Geoff, reported by Diego Tartara <dtartara@novamens.com>]
4949
4950 *) Change the key loading routines for ENGINEs to use the same kind
4951 callback (pem_password_cb) as all other routines that need this
4952 kind of callback.
4953 [Richard Levitte]
4954
4955 *) Increase ENTROPY_NEEDED to 32 bytes, as Rijndael can operate with
4956 256 bit (=32 byte) keys. Of course seeding with more entropy bytes
4957 than this minimum value is recommended.
4958 [Lutz Jaenicke]
4959
4960 *) New random seeder for OpenVMS, using the system process statistics
4961 that are easily reachable.
4962 [Richard Levitte]
4963
4964 *) Windows apparently can't transparently handle global
4965 variables defined in DLLs. Initialisations such as:
4966
4967 const ASN1_ITEM *it = &ASN1_INTEGER_it;
4968
4969 wont compile. This is used by the any applications that need to
4970 declare their own ASN1 modules. This was fixed by adding the option
4971 EXPORT_VAR_AS_FN to all Win32 platforms, although this isn't strictly
4972 needed for static libraries under Win32.
4973 [Steve Henson]
4974
4975 *) New functions X509_PURPOSE_set() and X509_TRUST_set() to handle
4976 setting of purpose and trust fields. New X509_STORE trust and
4977 purpose functions and tidy up setting in other SSL functions.
4978 [Steve Henson]
4979
4980 *) Add copies of X509_STORE_CTX fields and callbacks to X509_STORE
4981 structure. These are inherited by X509_STORE_CTX when it is
4982 initialised. This allows various defaults to be set in the
4983 X509_STORE structure (such as flags for CRL checking and custom
4984 purpose or trust settings) for functions which only use X509_STORE_CTX
4985 internally such as S/MIME.
4986
4987 Modify X509_STORE_CTX_purpose_inherit() so it only sets purposes and
4988 trust settings if they are not set in X509_STORE. This allows X509_STORE
4989 purposes and trust (in S/MIME for example) to override any set by default.
4990
4991 Add command line options for CRL checking to smime, s_client and s_server
4992 applications.
4993 [Steve Henson]
4994
4995 *) Initial CRL based revocation checking. If the CRL checking flag(s)
4996 are set then the CRL is looked up in the X509_STORE structure and
4997 its validity and signature checked, then if the certificate is found
4998 in the CRL the verify fails with a revoked error.
4999
5000 Various new CRL related callbacks added to X509_STORE_CTX structure.
5001
5002 Command line options added to 'verify' application to support this.
5003
5004 This needs some additional work, such as being able to handle multiple
5005 CRLs with different times, extension based lookup (rather than just
5006 by subject name) and ultimately more complete V2 CRL extension
5007 handling.
5008 [Steve Henson]
5009
5010 *) Add a general user interface API (crypto/ui/). This is designed
5011 to replace things like des_read_password and friends (backward
5012 compatibility functions using this new API are provided).
5013 The purpose is to remove prompting functions from the DES code
5014 section as well as provide for prompting through dialog boxes in
5015 a window system and the like.
5016 [Richard Levitte]
5017
5018 *) Add "ex_data" support to ENGINE so implementations can add state at a
5019 per-structure level rather than having to store it globally.
5020 [Geoff]
5021
5022 *) Make it possible for ENGINE structures to be copied when retrieved by
5023 ENGINE_by_id() if the ENGINE specifies a new flag: ENGINE_FLAGS_BY_ID_COPY.
5024 This causes the "original" ENGINE structure to act like a template,
5025 analogous to the RSA vs. RSA_METHOD type of separation. Because of this
5026 operational state can be localised to each ENGINE structure, despite the
5027 fact they all share the same "methods". New ENGINE structures returned in
5028 this case have no functional references and the return value is the single
5029 structural reference. This matches the single structural reference returned
5030 by ENGINE_by_id() normally, when it is incremented on the pre-existing
5031 ENGINE structure.
5032 [Geoff]
5033
5034 *) Fix ASN1 decoder when decoding type ANY and V_ASN1_OTHER: since this
5035 needs to match any other type at all we need to manually clear the
5036 tag cache.
5037 [Steve Henson]
5038
5039 *) Changes to the "openssl engine" utility to include;
5040 - verbosity levels ('-v', '-vv', and '-vvv') that provide information
5041 about an ENGINE's available control commands.
5042 - executing control commands from command line arguments using the
5043 '-pre' and '-post' switches. '-post' is only used if '-t' is
5044 specified and the ENGINE is successfully initialised. The syntax for
5045 the individual commands are colon-separated, for example;
5046 openssl engine chil -pre FORK_CHECK:0 -pre SO_PATH:/lib/test.so
5047 [Geoff]
5048
5049 *) New dynamic control command support for ENGINEs. ENGINEs can now
5050 declare their own commands (numbers), names (strings), descriptions,
5051 and input types for run-time discovery by calling applications. A
5052 subset of these commands are implicitly classed as "executable"
5053 depending on their input type, and only these can be invoked through
5054 the new string-based API function ENGINE_ctrl_cmd_string(). (Eg. this
5055 can be based on user input, config files, etc). The distinction is
5056 that "executable" commands cannot return anything other than a boolean
5057 result and can only support numeric or string input, whereas some
5058 discoverable commands may only be for direct use through
5059 ENGINE_ctrl(), eg. supporting the exchange of binary data, function
5060 pointers, or other custom uses. The "executable" commands are to
5061 support parameterisations of ENGINE behaviour that can be
5062 unambiguously defined by ENGINEs and used consistently across any
5063 OpenSSL-based application. Commands have been added to all the
5064 existing hardware-supporting ENGINEs, noticeably "SO_PATH" to allow
5065 control over shared-library paths without source code alterations.
5066 [Geoff]
5067
5068 *) Changed all ENGINE implementations to dynamically allocate their
5069 ENGINEs rather than declaring them statically. Apart from this being
5070 necessary with the removal of the ENGINE_FLAGS_MALLOCED distinction,
5071 this also allows the implementations to compile without using the
5072 internal engine_int.h header.
5073 [Geoff]
5074
5075 *) Minor adjustment to "rand" code. RAND_get_rand_method() now returns a
5076 'const' value. Any code that should be able to modify a RAND_METHOD
5077 should already have non-const pointers to it (ie. they should only
5078 modify their own ones).
5079 [Geoff]
5080
5081 *) Made a variety of little tweaks to the ENGINE code.
5082 - "atalla" and "ubsec" string definitions were moved from header files
5083 to C code. "nuron" string definitions were placed in variables
5084 rather than hard-coded - allowing parameterisation of these values
5085 later on via ctrl() commands.
5086 - Removed unused "#if 0"'d code.
5087 - Fixed engine list iteration code so it uses ENGINE_free() to release
5088 structural references.
5089 - Constified the RAND_METHOD element of ENGINE structures.
5090 - Constified various get/set functions as appropriate and added
5091 missing functions (including a catch-all ENGINE_cpy that duplicates
5092 all ENGINE values onto a new ENGINE except reference counts/state).
5093 - Removed NULL parameter checks in get/set functions. Setting a method
5094 or function to NULL is a way of cancelling out a previously set
5095 value. Passing a NULL ENGINE parameter is just plain stupid anyway
5096 and doesn't justify the extra error symbols and code.
5097 - Deprecate the ENGINE_FLAGS_MALLOCED define and move the area for
5098 flags from engine_int.h to engine.h.
5099 - Changed prototypes for ENGINE handler functions (init(), finish(),
5100 ctrl(), key-load functions, etc) to take an (ENGINE*) parameter.
5101 [Geoff]
5102
5103 *) Implement binary inversion algorithm for BN_mod_inverse in addition
5104 to the algorithm using long division. The binary algorithm can be
5105 used only if the modulus is odd. On 32-bit systems, it is faster
5106 only for relatively small moduli (roughly 20-30% for 128-bit moduli,
5107 roughly 5-15% for 256-bit moduli), so we use it only for moduli
5108 up to 450 bits. In 64-bit environments, the binary algorithm
5109 appears to be advantageous for much longer moduli; here we use it
5110 for moduli up to 2048 bits.
5111 [Bodo Moeller]
5112
5113 *) Rewrite CHOICE field setting in ASN1_item_ex_d2i(). The old code
5114 could not support the combine flag in choice fields.
5115 [Steve Henson]
5116
5117 *) Add a 'copy_extensions' option to the 'ca' utility. This copies
5118 extensions from a certificate request to the certificate.
5119 [Steve Henson]
5120
5121 *) Allow multiple 'certopt' and 'nameopt' options to be separated
5122 by commas. Add 'namopt' and 'certopt' options to the 'ca' config
5123 file: this allows the display of the certificate about to be
5124 signed to be customised, to allow certain fields to be included
5125 or excluded and extension details. The old system didn't display
5126 multicharacter strings properly, omitted fields not in the policy
5127 and couldn't display additional details such as extensions.
5128 [Steve Henson]
5129
5130 *) Function EC_POINTs_mul for multiple scalar multiplication
5131 of an arbitrary number of elliptic curve points
5132 \sum scalars[i]*points[i],
5133 optionally including the generator defined for the EC_GROUP:
5134 scalar*generator + \sum scalars[i]*points[i].
5135
5136 EC_POINT_mul is a simple wrapper function for the typical case
5137 that the point list has just one item (besides the optional
5138 generator).
5139 [Bodo Moeller]
5140
5141 *) First EC_METHODs for curves over GF(p):
5142
5143 EC_GFp_simple_method() uses the basic BN_mod_mul and BN_mod_sqr
5144 operations and provides various method functions that can also
5145 operate with faster implementations of modular arithmetic.
5146
5147 EC_GFp_mont_method() reuses most functions that are part of
5148 EC_GFp_simple_method, but uses Montgomery arithmetic.
5149
5150 [Bodo Moeller; point addition and point doubling
5151 implementation directly derived from source code provided by
5152 Lenka Fibikova <fibikova@exp-math.uni-essen.de>]
5153
5154 *) Framework for elliptic curves (crypto/ec/ec.h, crypto/ec/ec_lcl.h,
5155 crypto/ec/ec_lib.c):
5156
5157 Curves are EC_GROUP objects (with an optional group generator)
5158 based on EC_METHODs that are built into the library.
5159
5160 Points are EC_POINT objects based on EC_GROUP objects.
5161
5162 Most of the framework would be able to handle curves over arbitrary
5163 finite fields, but as there are no obvious types for fields other
5164 than GF(p), some functions are limited to that for now.
5165 [Bodo Moeller]
5166
5167 *) Add the -HTTP option to s_server. It is similar to -WWW, but requires
5168 that the file contains a complete HTTP response.
5169 [Richard Levitte]
5170
5171 *) Add the ec directory to mkdef.pl and mkfiles.pl. In mkdef.pl
5172 change the def and num file printf format specifier from "%-40sXXX"
5173 to "%-39s XXX". The latter will always guarantee a space after the
5174 field while the former will cause them to run together if the field
5175 is 40 of more characters long.
5176 [Steve Henson]
5177
5178 *) Constify the cipher and digest 'method' functions and structures
5179 and modify related functions to take constant EVP_MD and EVP_CIPHER
5180 pointers.
5181 [Steve Henson]
5182
5183 *) Hide BN_CTX structure details in bn_lcl.h instead of publishing them
5184 in <openssl/bn.h>. Also further increase BN_CTX_NUM to 32.
5185 [Bodo Moeller]
5186
5187 *) Modify EVP_Digest*() routines so they now return values. Although the
5188 internal software routines can never fail additional hardware versions
5189 might.
5190 [Steve Henson]
5191
5192 *) Clean up crypto/err/err.h and change some error codes to avoid conflicts:
5193
5194 Previously ERR_R_FATAL was too small and coincided with ERR_LIB_PKCS7
5195 (= ERR_R_PKCS7_LIB); it is now 64 instead of 32.
5196
5197 ASN1 error codes
5198 ERR_R_NESTED_ASN1_ERROR
5199 ...
5200 ERR_R_MISSING_ASN1_EOS
5201 were 4 .. 9, conflicting with
5202 ERR_LIB_RSA (= ERR_R_RSA_LIB)
5203 ...
5204 ERR_LIB_PEM (= ERR_R_PEM_LIB).
5205 They are now 58 .. 63 (i.e., just below ERR_R_FATAL).
5206
5207 Add new error code 'ERR_R_INTERNAL_ERROR'.
5208 [Bodo Moeller]
5209
5210 *) Don't overuse locks in crypto/err/err.c: For data retrieval, CRYPTO_r_lock
5211 suffices.
5212 [Bodo Moeller]
5213
5214 *) New option '-subj arg' for 'openssl req' and 'openssl ca'. This
5215 sets the subject name for a new request or supersedes the
5216 subject name in a given request. Formats that can be parsed are
5217 'CN=Some Name, OU=myOU, C=IT'
5218 and
5219 'CN=Some Name/OU=myOU/C=IT'.
5220
5221 Add options '-batch' and '-verbose' to 'openssl req'.
5222 [Massimiliano Pala <madwolf@hackmasters.net>]
5223
5224 *) Introduce the possibility to access global variables through
5225 functions on platform were that's the best way to handle exporting
5226 global variables in shared libraries. To enable this functionality,
5227 one must configure with "EXPORT_VAR_AS_FN" or defined the C macro
5228 "OPENSSL_EXPORT_VAR_AS_FUNCTION" in crypto/opensslconf.h (the latter
5229 is normally done by Configure or something similar).
5230
5231 To implement a global variable, use the macro OPENSSL_IMPLEMENT_GLOBAL
5232 in the source file (foo.c) like this:
5233
5234 OPENSSL_IMPLEMENT_GLOBAL(int,foo)=1;
5235 OPENSSL_IMPLEMENT_GLOBAL(double,bar);
5236
5237 To declare a global variable, use the macros OPENSSL_DECLARE_GLOBAL
5238 and OPENSSL_GLOBAL_REF in the header file (foo.h) like this:
5239
5240 OPENSSL_DECLARE_GLOBAL(int,foo);
5241 #define foo OPENSSL_GLOBAL_REF(foo)
5242 OPENSSL_DECLARE_GLOBAL(double,bar);
5243 #define bar OPENSSL_GLOBAL_REF(bar)
5244
5245 The #defines are very important, and therefore so is including the
5246 header file everywhere where the defined globals are used.
5247
5248 The macro OPENSSL_EXPORT_VAR_AS_FUNCTION also affects the definition
5249 of ASN.1 items, but that structure is a bit different.
5250
5251 The largest change is in util/mkdef.pl which has been enhanced with
5252 better and easier to understand logic to choose which symbols should
5253 go into the Windows .def files as well as a number of fixes and code
5254 cleanup (among others, algorithm keywords are now sorted
5255 lexicographically to avoid constant rewrites).
5256 [Richard Levitte]
5257
5258 *) In BN_div() keep a copy of the sign of 'num' before writing the
5259 result to 'rm' because if rm==num the value will be overwritten
5260 and produce the wrong result if 'num' is negative: this caused
5261 problems with BN_mod() and BN_nnmod().
5262 [Steve Henson]
5263
5264 *) Function OCSP_request_verify(). This checks the signature on an
5265 OCSP request and verifies the signer certificate. The signer
5266 certificate is just checked for a generic purpose and OCSP request
5267 trust settings.
5268 [Steve Henson]
5269
5270 *) Add OCSP_check_validity() function to check the validity of OCSP
5271 responses. OCSP responses are prepared in real time and may only
5272 be a few seconds old. Simply checking that the current time lies
5273 between thisUpdate and nextUpdate max reject otherwise valid responses
5274 caused by either OCSP responder or client clock inaccuracy. Instead
5275 we allow thisUpdate and nextUpdate to fall within a certain period of
5276 the current time. The age of the response can also optionally be
5277 checked. Two new options -validity_period and -status_age added to
5278 ocsp utility.
5279 [Steve Henson]
5280
5281 *) If signature or public key algorithm is unrecognized print out its
5282 OID rather that just UNKNOWN.
5283 [Steve Henson]
5284
5285 *) Change OCSP_cert_to_id() to tolerate a NULL subject certificate and
5286 OCSP_cert_id_new() a NULL serialNumber. This allows a partial certificate
5287 ID to be generated from the issuer certificate alone which can then be
5288 passed to OCSP_id_issuer_cmp().
5289 [Steve Henson]
5290
5291 *) New compilation option ASN1_ITEM_FUNCTIONS. This causes the new
5292 ASN1 modules to export functions returning ASN1_ITEM pointers
5293 instead of the ASN1_ITEM structures themselves. This adds several
5294 new macros which allow the underlying ASN1 function/structure to
5295 be accessed transparently. As a result code should not use ASN1_ITEM
5296 references directly (such as &X509_it) but instead use the relevant
5297 macros (such as ASN1_ITEM_rptr(X509)). This option is to allow
5298 use of the new ASN1 code on platforms where exporting structures
5299 is problematical (for example in shared libraries) but exporting
5300 functions returning pointers to structures is not.
5301 [Steve Henson]
5302
5303 *) Add support for overriding the generation of SSL/TLS session IDs.
5304 These callbacks can be registered either in an SSL_CTX or per SSL.
5305 The purpose of this is to allow applications to control, if they wish,
5306 the arbitrary values chosen for use as session IDs, particularly as it
5307 can be useful for session caching in multiple-server environments. A
5308 command-line switch for testing this (and any client code that wishes
5309 to use such a feature) has been added to "s_server".
5310 [Geoff Thorpe, Lutz Jaenicke]
5311
5312 *) Modify mkdef.pl to recognise and parse preprocessor conditionals
5313 of the form '#if defined(...) || defined(...) || ...' and
5314 '#if !defined(...) && !defined(...) && ...'. This also avoids
5315 the growing number of special cases it was previously handling.
5316 [Richard Levitte]
5317
5318 *) Make all configuration macros available for application by making
5319 sure they are available in opensslconf.h, by giving them names starting
5320 with "OPENSSL_" to avoid conflicts with other packages and by making
5321 sure e_os2.h will cover all platform-specific cases together with
5322 opensslconf.h.
5323 Additionally, it is now possible to define configuration/platform-
5324 specific names (called "system identities"). In the C code, these
5325 are prefixed with "OPENSSL_SYSNAME_". e_os2.h will create another
5326 macro with the name beginning with "OPENSSL_SYS_", which is determined
5327 from "OPENSSL_SYSNAME_*" or compiler-specific macros depending on
5328 what is available.
5329 [Richard Levitte]
5330
5331 *) New option -set_serial to 'req' and 'x509' this allows the serial
5332 number to use to be specified on the command line. Previously self
5333 signed certificates were hard coded with serial number 0 and the
5334 CA options of 'x509' had to use a serial number in a file which was
5335 auto incremented.
5336 [Steve Henson]
5337
5338 *) New options to 'ca' utility to support V2 CRL entry extensions.
5339 Currently CRL reason, invalidity date and hold instruction are
5340 supported. Add new CRL extensions to V3 code and some new objects.
5341 [Steve Henson]
5342
5343 *) New function EVP_CIPHER_CTX_set_padding() this is used to
5344 disable standard block padding (aka PKCS#5 padding) in the EVP
5345 API, which was previously mandatory. This means that the data is
5346 not padded in any way and so the total length much be a multiple
5347 of the block size, otherwise an error occurs.
5348 [Steve Henson]
5349
5350 *) Initial (incomplete) OCSP SSL support.
5351 [Steve Henson]
5352
5353 *) New function OCSP_parse_url(). This splits up a URL into its host,
5354 port and path components: primarily to parse OCSP URLs. New -url
5355 option to ocsp utility.
5356 [Steve Henson]
5357
5358 *) New nonce behavior. The return value of OCSP_check_nonce() now
5359 reflects the various checks performed. Applications can decide
5360 whether to tolerate certain situations such as an absent nonce
5361 in a response when one was present in a request: the ocsp application
5362 just prints out a warning. New function OCSP_add1_basic_nonce()
5363 this is to allow responders to include a nonce in a response even if
5364 the request is nonce-less.
5365 [Steve Henson]
5366
5367 *) Disable stdin buffering in load_cert (apps/apps.c) so that no certs are
5368 skipped when using openssl x509 multiple times on a single input file,
5369 e.g. "(openssl x509 -out cert1; openssl x509 -out cert2) <certs".
5370 [Bodo Moeller]
5371
5372 *) Make ASN1_UTCTIME_set_string() and ASN1_GENERALIZEDTIME_set_string()
5373 set string type: to handle setting ASN1_TIME structures. Fix ca
5374 utility to correctly initialize revocation date of CRLs.
5375 [Steve Henson]
5376
5377 *) New option SSL_OP_CIPHER_SERVER_PREFERENCE allows the server to override
5378 the clients preferred ciphersuites and rather use its own preferences.
5379 Should help to work around M$ SGC (Server Gated Cryptography) bug in
5380 Internet Explorer by ensuring unchanged hash method during stepup.
5381 (Also replaces the broken/deactivated SSL_OP_NON_EXPORT_FIRST option.)
5382 [Lutz Jaenicke]
5383
5384 *) Make mkdef.pl recognise all DECLARE_ASN1 macros, change rijndael
5385 to aes and add a new 'exist' option to print out symbols that don't
5386 appear to exist.
5387 [Steve Henson]
5388
5389 *) Additional options to ocsp utility to allow flags to be set and
5390 additional certificates supplied.
5391 [Steve Henson]
5392
5393 *) Add the option -VAfile to 'openssl ocsp', so the user can give the
5394 OCSP client a number of certificate to only verify the response
5395 signature against.
5396 [Richard Levitte]
5397
5398 *) Update Rijndael code to version 3.0 and change EVP AES ciphers to
5399 handle the new API. Currently only ECB, CBC modes supported. Add new
5400 AES OIDs.
5401
5402 Add TLS AES ciphersuites as described in RFC3268, "Advanced
5403 Encryption Standard (AES) Ciphersuites for Transport Layer
5404 Security (TLS)". (In beta versions of OpenSSL 0.9.7, these were
5405 not enabled by default and were not part of the "ALL" ciphersuite
5406 alias because they were not yet official; they could be
5407 explicitly requested by specifying the "AESdraft" ciphersuite
5408 group alias. In the final release of OpenSSL 0.9.7, the group
5409 alias is called "AES" and is part of "ALL".)
5410 [Ben Laurie, Steve Henson, Bodo Moeller]
5411
5412 *) New function OCSP_copy_nonce() to copy nonce value (if present) from
5413 request to response.
5414 [Steve Henson]
5415
5416 *) Functions for OCSP responders. OCSP_request_onereq_count(),
5417 OCSP_request_onereq_get0(), OCSP_onereq_get0_id() and OCSP_id_get0_info()
5418 extract information from a certificate request. OCSP_response_create()
5419 creates a response and optionally adds a basic response structure.
5420 OCSP_basic_add1_status() adds a complete single response to a basic
5421 response and returns the OCSP_SINGLERESP structure just added (to allow
5422 extensions to be included for example). OCSP_basic_add1_cert() adds a
5423 certificate to a basic response and OCSP_basic_sign() signs a basic
5424 response with various flags. New helper functions ASN1_TIME_check()
5425 (checks validity of ASN1_TIME structure) and ASN1_TIME_to_generalizedtime()
5426 (converts ASN1_TIME to GeneralizedTime).
5427 [Steve Henson]
5428
5429 *) Various new functions. EVP_Digest() combines EVP_Digest{Init,Update,Final}()
5430 in a single operation. X509_get0_pubkey_bitstr() extracts the public_key
5431 structure from a certificate. X509_pubkey_digest() digests the public_key
5432 contents: this is used in various key identifiers.
5433 [Steve Henson]
5434
5435 *) Make sk_sort() tolerate a NULL argument.
5436 [Steve Henson reported by Massimiliano Pala <madwolf@comune.modena.it>]
5437
5438 *) New OCSP verify flag OCSP_TRUSTOTHER. When set the "other" certificates
5439 passed by the function are trusted implicitly. If any of them signed the
5440 response then it is assumed to be valid and is not verified.
5441 [Steve Henson]
5442
5443 *) In PKCS7_set_type() initialise content_type in PKCS7_ENC_CONTENT
5444 to data. This was previously part of the PKCS7 ASN1 code. This
5445 was causing problems with OpenSSL created PKCS#12 and PKCS#7 structures.
5446 [Steve Henson, reported by Kenneth R. Robinette
5447 <support@securenetterm.com>]
5448
5449 *) Add CRYPTO_push_info() and CRYPTO_pop_info() calls to new ASN1
5450 routines: without these tracing memory leaks is very painful.
5451 Fix leaks in PKCS12 and PKCS7 routines.
5452 [Steve Henson]
5453
5454 *) Make X509_time_adj() cope with the new behaviour of ASN1_TIME_new().
5455 Previously it initialised the 'type' argument to V_ASN1_UTCTIME which
5456 effectively meant GeneralizedTime would never be used. Now it
5457 is initialised to -1 but X509_time_adj() now has to check the value
5458 and use ASN1_TIME_set() if the value is not V_ASN1_UTCTIME or
5459 V_ASN1_GENERALIZEDTIME, without this it always uses GeneralizedTime.
5460 [Steve Henson, reported by Kenneth R. Robinette
5461 <support@securenetterm.com>]
5462
5463 *) Fixes to BN_to_ASN1_INTEGER when bn is zero. This would previously
5464 result in a zero length in the ASN1_INTEGER structure which was
5465 not consistent with the structure when d2i_ASN1_INTEGER() was used
5466 and would cause ASN1_INTEGER_cmp() to fail. Enhance s2i_ASN1_INTEGER()
5467 to cope with hex and negative integers. Fix bug in i2a_ASN1_INTEGER()
5468 where it did not print out a minus for negative ASN1_INTEGER.
5469 [Steve Henson]
5470
5471 *) Add summary printout to ocsp utility. The various functions which
5472 convert status values to strings have been renamed to:
5473 OCSP_response_status_str(), OCSP_cert_status_str() and
5474 OCSP_crl_reason_str() and are no longer static. New options
5475 to verify nonce values and to disable verification. OCSP response
5476 printout format cleaned up.
5477 [Steve Henson]
5478
5479 *) Add additional OCSP certificate checks. These are those specified
5480 in RFC2560. This consists of two separate checks: the CA of the
5481 certificate being checked must either be the OCSP signer certificate
5482 or the issuer of the OCSP signer certificate. In the latter case the
5483 OCSP signer certificate must contain the OCSP signing extended key
5484 usage. This check is performed by attempting to match the OCSP
5485 signer or the OCSP signer CA to the issuerNameHash and issuerKeyHash
5486 in the OCSP_CERTID structures of the response.
5487 [Steve Henson]
5488
5489 *) Initial OCSP certificate verification added to OCSP_basic_verify()
5490 and related routines. This uses the standard OpenSSL certificate
5491 verify routines to perform initial checks (just CA validity) and
5492 to obtain the certificate chain. Then additional checks will be
5493 performed on the chain. Currently the root CA is checked to see
5494 if it is explicitly trusted for OCSP signing. This is used to set
5495 a root CA as a global signing root: that is any certificate that
5496 chains to that CA is an acceptable OCSP signing certificate.
5497 [Steve Henson]
5498
5499 *) New '-extfile ...' option to 'openssl ca' for reading X.509v3
5500 extensions from a separate configuration file.
5501 As when reading extensions from the main configuration file,
5502 the '-extensions ...' option may be used for specifying the
5503 section to use.
5504 [Massimiliano Pala <madwolf@comune.modena.it>]
5505
5506 *) New OCSP utility. Allows OCSP requests to be generated or
5507 read. The request can be sent to a responder and the output
5508 parsed, outputed or printed in text form. Not complete yet:
5509 still needs to check the OCSP response validity.
5510 [Steve Henson]
5511
5512 *) New subcommands for 'openssl ca':
5513 'openssl ca -status <serial>' prints the status of the cert with
5514 the given serial number (according to the index file).
5515 'openssl ca -updatedb' updates the expiry status of certificates
5516 in the index file.
5517 [Massimiliano Pala <madwolf@comune.modena.it>]
5518
5519 *) New '-newreq-nodes' command option to CA.pl. This is like
5520 '-newreq', but calls 'openssl req' with the '-nodes' option
5521 so that the resulting key is not encrypted.
5522 [Damien Miller <djm@mindrot.org>]
5523
5524 *) New configuration for the GNU Hurd.
5525 [Jonathan Bartlett <johnnyb@wolfram.com> via Richard Levitte]
5526
5527 *) Initial code to implement OCSP basic response verify. This
5528 is currently incomplete. Currently just finds the signer's
5529 certificate and verifies the signature on the response.
5530 [Steve Henson]
5531
5532 *) New SSLeay_version code SSLEAY_DIR to determine the compiled-in
5533 value of OPENSSLDIR. This is available via the new '-d' option
5534 to 'openssl version', and is also included in 'openssl version -a'.
5535 [Bodo Moeller]
5536
5537 *) Allowing defining memory allocation callbacks that will be given
5538 file name and line number information in additional arguments
5539 (a const char* and an int). The basic functionality remains, as
5540 well as the original possibility to just replace malloc(),
5541 realloc() and free() by functions that do not know about these
5542 additional arguments. To register and find out the current
5543 settings for extended allocation functions, the following
5544 functions are provided:
5545
5546 CRYPTO_set_mem_ex_functions
5547 CRYPTO_set_locked_mem_ex_functions
5548 CRYPTO_get_mem_ex_functions
5549 CRYPTO_get_locked_mem_ex_functions
5550
5551 These work the same way as CRYPTO_set_mem_functions and friends.
5552 CRYPTO_get_[locked_]mem_functions now writes 0 where such an
5553 extended allocation function is enabled.
5554 Similarly, CRYPTO_get_[locked_]mem_ex_functions writes 0 where
5555 a conventional allocation function is enabled.
5556 [Richard Levitte, Bodo Moeller]
5557
5558 *) Finish off removing the remaining LHASH function pointer casts.
5559 There should no longer be any prototype-casting required when using
5560 the LHASH abstraction, and any casts that remain are "bugs". See
5561 the callback types and macros at the head of lhash.h for details
5562 (and "OBJ_cleanup" in crypto/objects/obj_dat.c as an example).
5563 [Geoff Thorpe]
5564
5565 *) Add automatic query of EGD sockets in RAND_poll() for the unix variant.
5566 If /dev/[u]random devices are not available or do not return enough
5567 entropy, EGD style sockets (served by EGD or PRNGD) will automatically
5568 be queried.
5569 The locations /var/run/egd-pool, /dev/egd-pool, /etc/egd-pool, and
5570 /etc/entropy will be queried once each in this sequence, quering stops
5571 when enough entropy was collected without querying more sockets.
5572 [Lutz Jaenicke]
5573
5574 *) Change the Unix RAND_poll() variant to be able to poll several
5575 random devices, as specified by DEVRANDOM, until a sufficient amount
5576 of data has been collected. We spend at most 10 ms on each file
5577 (select timeout) and read in non-blocking mode. DEVRANDOM now
5578 defaults to the list "/dev/urandom", "/dev/random", "/dev/srandom"
5579 (previously it was just the string "/dev/urandom"), so on typical
5580 platforms the 10 ms delay will never occur.
5581 Also separate out the Unix variant to its own file, rand_unix.c.
5582 For VMS, there's a currently-empty rand_vms.c.
5583 [Richard Levitte]
5584
5585 *) Move OCSP client related routines to ocsp_cl.c. These
5586 provide utility functions which an application needing
5587 to issue a request to an OCSP responder and analyse the
5588 response will typically need: as opposed to those which an
5589 OCSP responder itself would need which will be added later.
5590
5591 OCSP_request_sign() signs an OCSP request with an API similar
5592 to PKCS7_sign(). OCSP_response_status() returns status of OCSP
5593 response. OCSP_response_get1_basic() extracts basic response
5594 from response. OCSP_resp_find_status(): finds and extracts status
5595 information from an OCSP_CERTID structure (which will be created
5596 when the request structure is built). These are built from lower
5597 level functions which work on OCSP_SINGLERESP structures but
5598 wont normally be used unless the application wishes to examine
5599 extensions in the OCSP response for example.
5600
5601 Replace nonce routines with a pair of functions.
5602 OCSP_request_add1_nonce() adds a nonce value and optionally
5603 generates a random value. OCSP_check_nonce() checks the
5604 validity of the nonce in an OCSP response.
5605 [Steve Henson]
5606
5607 *) Change function OCSP_request_add() to OCSP_request_add0_id().
5608 This doesn't copy the supplied OCSP_CERTID and avoids the
5609 need to free up the newly created id. Change return type
5610 to OCSP_ONEREQ to return the internal OCSP_ONEREQ structure.
5611 This can then be used to add extensions to the request.
5612 Deleted OCSP_request_new(), since most of its functionality
5613 is now in OCSP_REQUEST_new() (and the case insensitive name
5614 clash) apart from the ability to set the request name which
5615 will be added elsewhere.
5616 [Steve Henson]
5617
5618 *) Update OCSP API. Remove obsolete extensions argument from
5619 various functions. Extensions are now handled using the new
5620 OCSP extension code. New simple OCSP HTTP function which
5621 can be used to send requests and parse the response.
5622 [Steve Henson]
5623
5624 *) Fix the PKCS#7 (S/MIME) code to work with new ASN1. Two new
5625 ASN1_ITEM structures help with sign and verify. PKCS7_ATTR_SIGN
5626 uses the special reorder version of SET OF to sort the attributes
5627 and reorder them to match the encoded order. This resolves a long
5628 standing problem: a verify on a PKCS7 structure just after signing
5629 it used to fail because the attribute order did not match the
5630 encoded order. PKCS7_ATTR_VERIFY does not reorder the attributes:
5631 it uses the received order. This is necessary to tolerate some broken
5632 software that does not order SET OF. This is handled by encoding
5633 as a SEQUENCE OF but using implicit tagging (with UNIVERSAL class)
5634 to produce the required SET OF.
5635 [Steve Henson]
5636
5637 *) Have mk1mf.pl generate the macros OPENSSL_BUILD_SHLIBCRYPTO and
5638 OPENSSL_BUILD_SHLIBSSL and use them appropriately in the header
5639 files to get correct declarations of the ASN.1 item variables.
5640 [Richard Levitte]
5641
5642 *) Rewrite of PKCS#12 code to use new ASN1 functionality. Replace many
5643 PKCS#12 macros with real functions. Fix two unrelated ASN1 bugs:
5644 asn1_check_tlen() would sometimes attempt to use 'ctx' when it was
5645 NULL and ASN1_TYPE was not dereferenced properly in asn1_ex_c2i().
5646 New ASN1 macro: DECLARE_ASN1_ITEM() which just declares the relevant
5647 ASN1_ITEM and no wrapper functions.
5648 [Steve Henson]
5649
5650 *) New functions or ASN1_item_d2i_fp() and ASN1_item_d2i_bio(). These
5651 replace the old function pointer based I/O routines. Change most of
5652 the *_d2i_bio() and *_d2i_fp() functions to use these.
5653 [Steve Henson]
5654
5655 *) Enhance mkdef.pl to be more accepting about spacing in C preprocessor
5656 lines, recognice more "algorithms" that can be deselected, and make
5657 it complain about algorithm deselection that isn't recognised.
5658 [Richard Levitte]
5659
5660 *) New ASN1 functions to handle dup, sign, verify, digest, pack and
5661 unpack operations in terms of ASN1_ITEM. Modify existing wrappers
5662 to use new functions. Add NO_ASN1_OLD which can be set to remove
5663 some old style ASN1 functions: this can be used to determine if old
5664 code will still work when these eventually go away.
5665 [Steve Henson]
5666
5667 *) New extension functions for OCSP structures, these follow the
5668 same conventions as certificates and CRLs.
5669 [Steve Henson]
5670
5671 *) New function X509V3_add1_i2d(). This automatically encodes and
5672 adds an extension. Its behaviour can be customised with various
5673 flags to append, replace or delete. Various wrappers added for
5674 certifcates and CRLs.
5675 [Steve Henson]
5676
5677 *) Fix to avoid calling the underlying ASN1 print routine when
5678 an extension cannot be parsed. Correct a typo in the
5679 OCSP_SERVICELOC extension. Tidy up print OCSP format.
5680 [Steve Henson]
5681
5682 *) Make mkdef.pl parse some of the ASN1 macros and add apropriate
5683 entries for variables.
5684 [Steve Henson]
5685
5686 *) Add functionality to apps/openssl.c for detecting locking
5687 problems: As the program is single-threaded, all we have
5688 to do is register a locking callback using an array for
5689 storing which locks are currently held by the program.
5690 [Bodo Moeller]
5691
5692 *) Use a lock around the call to CRYPTO_get_ex_new_index() in
5693 SSL_get_ex_data_X509_STORE_idx(), which is used in
5694 ssl_verify_cert_chain() and thus can be called at any time
5695 during TLS/SSL handshakes so that thread-safety is essential.
5696 Unfortunately, the ex_data design is not at all suited
5697 for multi-threaded use, so it probably should be abolished.
5698 [Bodo Moeller]
5699
5700 *) Added Broadcom "ubsec" ENGINE to OpenSSL.
5701 [Broadcom, tweaked and integrated by Geoff Thorpe]
5702
5703 *) Move common extension printing code to new function
5704 X509V3_print_extensions(). Reorganise OCSP print routines and
5705 implement some needed OCSP ASN1 functions. Add OCSP extensions.
5706 [Steve Henson]
5707
5708 *) New function X509_signature_print() to remove duplication in some
5709 print routines.
5710 [Steve Henson]
5711
5712 *) Add a special meaning when SET OF and SEQUENCE OF flags are both
5713 set (this was treated exactly the same as SET OF previously). This
5714 is used to reorder the STACK representing the structure to match the
5715 encoding. This will be used to get round a problem where a PKCS7
5716 structure which was signed could not be verified because the STACK
5717 order did not reflect the encoded order.
5718 [Steve Henson]
5719
5720 *) Reimplement the OCSP ASN1 module using the new code.
5721 [Steve Henson]
5722
5723 *) Update the X509V3 code to permit the use of an ASN1_ITEM structure
5724 for its ASN1 operations. The old style function pointers still exist
5725 for now but they will eventually go away.
5726 [Steve Henson]
5727
5728 *) Merge in replacement ASN1 code from the ASN1 branch. This almost
5729 completely replaces the old ASN1 functionality with a table driven
5730 encoder and decoder which interprets an ASN1_ITEM structure describing
5731 the ASN1 module. Compatibility with the existing ASN1 API (i2d,d2i) is
5732 largely maintained. Almost all of the old asn1_mac.h macro based ASN1
5733 has also been converted to the new form.
5734 [Steve Henson]
5735
5736 *) Change BN_mod_exp_recp so that negative moduli are tolerated
5737 (the sign is ignored). Similarly, ignore the sign in BN_MONT_CTX_set
5738 so that BN_mod_exp_mont and BN_mod_exp_mont_word work
5739 for negative moduli.
5740 [Bodo Moeller]
5741
5742 *) Fix BN_uadd and BN_usub: Always return non-negative results instead
5743 of not touching the result's sign bit.
5744 [Bodo Moeller]
5745
5746 *) BN_div bugfix: If the result is 0, the sign (res->neg) must not be
5747 set.
5748 [Bodo Moeller]
5749
5750 *) Changed the LHASH code to use prototypes for callbacks, and created
5751 macros to declare and implement thin (optionally static) functions
5752 that provide type-safety and avoid function pointer casting for the
5753 type-specific callbacks.
5754 [Geoff Thorpe]
5755
5756 *) Added Kerberos Cipher Suites to be used with TLS, as written in
5757 RFC 2712.
5758 [Veers Staats <staatsvr@asc.hpc.mil>,
5759 Jeffrey Altman <jaltman@columbia.edu>, via Richard Levitte]
5760
5761 *) Reformat the FAQ so the different questions and answers can be divided
5762 in sections depending on the subject.
5763 [Richard Levitte]
5764
5765 *) Have the zlib compression code load ZLIB.DLL dynamically under
5766 Windows.
5767 [Richard Levitte]
5768
5769 *) New function BN_mod_sqrt for computing square roots modulo a prime
5770 (using the probabilistic Tonelli-Shanks algorithm unless
5771 p == 3 (mod 4) or p == 5 (mod 8), which are cases that can
5772 be handled deterministically).
5773 [Lenka Fibikova <fibikova@exp-math.uni-essen.de>, Bodo Moeller]
5774
5775 *) Make BN_mod_inverse faster by explicitly handling small quotients
5776 in the Euclid loop. (Speed gain about 20% for small moduli [256 or
5777 512 bits], about 30% for larger ones [1024 or 2048 bits].)
5778 [Bodo Moeller]
5779
5780 *) New function BN_kronecker.
5781 [Bodo Moeller]
5782
5783 *) Fix BN_gcd so that it works on negative inputs; the result is
5784 positive unless both parameters are zero.
5785 Previously something reasonably close to an infinite loop was
5786 possible because numbers could be growing instead of shrinking
5787 in the implementation of Euclid's algorithm.
5788 [Bodo Moeller]
5789
5790 *) Fix BN_is_word() and BN_is_one() macros to take into account the
5791 sign of the number in question.
5792
5793 Fix BN_is_word(a,w) to work correctly for w == 0.
5794
5795 The old BN_is_word(a,w) macro is now called BN_abs_is_word(a,w)
5796 because its test if the absolute value of 'a' equals 'w'.
5797 Note that BN_abs_is_word does *not* handle w == 0 reliably;
5798 it exists mostly for use in the implementations of BN_is_zero(),
5799 BN_is_one(), and BN_is_word().
5800 [Bodo Moeller]
5801
5802 *) New function BN_swap.
5803 [Bodo Moeller]
5804
5805 *) Use BN_nnmod instead of BN_mod in crypto/bn/bn_exp.c so that
5806 the exponentiation functions are more likely to produce reasonable
5807 results on negative inputs.
5808 [Bodo Moeller]
5809
5810 *) Change BN_mod_mul so that the result is always non-negative.
5811 Previously, it could be negative if one of the factors was negative;
5812 I don't think anyone really wanted that behaviour.
5813 [Bodo Moeller]
5814
5815 *) Move BN_mod_... functions into new file crypto/bn/bn_mod.c
5816 (except for exponentiation, which stays in crypto/bn/bn_exp.c,
5817 and BN_mod_mul_reciprocal, which stays in crypto/bn/bn_recp.c)
5818 and add new functions:
5819
5820 BN_nnmod
5821 BN_mod_sqr
5822 BN_mod_add
5823 BN_mod_add_quick
5824 BN_mod_sub
5825 BN_mod_sub_quick
5826 BN_mod_lshift1
5827 BN_mod_lshift1_quick
5828 BN_mod_lshift
5829 BN_mod_lshift_quick
5830
5831 These functions always generate non-negative results.
5832
5833 BN_nnmod otherwise is like BN_mod (if BN_mod computes a remainder r
5834 such that |m| < r < 0, BN_nnmod will output rem + |m| instead).
5835
5836 BN_mod_XXX_quick(r, a, [b,] m) generates the same result as
5837 BN_mod_XXX(r, a, [b,] m, ctx), but requires that a [and b]
5838 be reduced modulo m.
5839 [Lenka Fibikova <fibikova@exp-math.uni-essen.de>, Bodo Moeller]
5840
5841 #if 0
5842 The following entry accidentily appeared in the CHANGES file
5843 distributed with OpenSSL 0.9.7. The modifications described in
5844 it do *not* apply to OpenSSL 0.9.7.
5845
5846 *) Remove a few calls to bn_wexpand() in BN_sqr() (the one in there
5847 was actually never needed) and in BN_mul(). The removal in BN_mul()
5848 required a small change in bn_mul_part_recursive() and the addition
5849 of the functions bn_cmp_part_words(), bn_sub_part_words() and
5850 bn_add_part_words(), which do the same thing as bn_cmp_words(),
5851 bn_sub_words() and bn_add_words() except they take arrays with
5852 differing sizes.
5853 [Richard Levitte]
5854 #endif
5855
5856 *) In 'openssl passwd', verify passwords read from the terminal
5857 unless the '-salt' option is used (which usually means that
5858 verification would just waste user's time since the resulting
5859 hash is going to be compared with some given password hash)
5860 or the new '-noverify' option is used.
5861
5862 This is an incompatible change, but it does not affect
5863 non-interactive use of 'openssl passwd' (passwords on the command
5864 line, '-stdin' option, '-in ...' option) and thus should not
5865 cause any problems.
5866 [Bodo Moeller]
5867
5868 *) Remove all references to RSAref, since there's no more need for it.
5869 [Richard Levitte]
5870
5871 *) Make DSO load along a path given through an environment variable
5872 (SHLIB_PATH) with shl_load().
5873 [Richard Levitte]
5874
5875 *) Constify the ENGINE code as a result of BIGNUM constification.
5876 Also constify the RSA code and most things related to it. In a
5877 few places, most notable in the depth of the ASN.1 code, ugly
5878 casts back to non-const were required (to be solved at a later
5879 time)
5880 [Richard Levitte]
5881
5882 *) Make it so the openssl application has all engines loaded by default.
5883 [Richard Levitte]
5884
5885 *) Constify the BIGNUM routines a little more.
5886 [Richard Levitte]
5887
5888 *) Add the following functions:
5889
5890 ENGINE_load_cswift()
5891 ENGINE_load_chil()
5892 ENGINE_load_atalla()
5893 ENGINE_load_nuron()
5894 ENGINE_load_builtin_engines()
5895
5896 That way, an application can itself choose if external engines that
5897 are built-in in OpenSSL shall ever be used or not. The benefit is
5898 that applications won't have to be linked with libdl or other dso
5899 libraries unless it's really needed.
5900
5901 Changed 'openssl engine' to load all engines on demand.
5902 Changed the engine header files to avoid the duplication of some
5903 declarations (they differed!).
5904 [Richard Levitte]
5905
5906 *) 'openssl engine' can now list capabilities.
5907 [Richard Levitte]
5908
5909 *) Better error reporting in 'openssl engine'.
5910 [Richard Levitte]
5911
5912 *) Never call load_dh_param(NULL) in s_server.
5913 [Bodo Moeller]
5914
5915 *) Add engine application. It can currently list engines by name and
5916 identity, and test if they are actually available.
5917 [Richard Levitte]
5918
5919 *) Improve RPM specification file by forcing symbolic linking and making
5920 sure the installed documentation is also owned by root.root.
5921 [Damien Miller <djm@mindrot.org>]
5922
5923 *) Give the OpenSSL applications more possibilities to make use of
5924 keys (public as well as private) handled by engines.
5925 [Richard Levitte]
5926
5927 *) Add OCSP code that comes from CertCo.
5928 [Richard Levitte]
5929
5930 *) Add VMS support for the Rijndael code.
5931 [Richard Levitte]
5932
5933 *) Added untested support for Nuron crypto accelerator.
5934 [Ben Laurie]
5935
5936 *) Add support for external cryptographic devices. This code was
5937 previously distributed separately as the "engine" branch.
5938 [Geoff Thorpe, Richard Levitte]
5939
5940 *) Rework the filename-translation in the DSO code. It is now possible to
5941 have far greater control over how a "name" is turned into a filename
5942 depending on the operating environment and any oddities about the
5943 different shared library filenames on each system.
5944 [Geoff Thorpe]
5945
5946 *) Support threads on FreeBSD-elf in Configure.
5947 [Richard Levitte]
5948
5949 *) Fix for SHA1 assembly problem with MASM: it produces
5950 warnings about corrupt line number information when assembling
5951 with debugging information. This is caused by the overlapping
5952 of two sections.
5953 [Bernd Matthes <mainbug@celocom.de>, Steve Henson]
5954
5955 *) NCONF changes.
5956 NCONF_get_number() has no error checking at all. As a replacement,
5957 NCONF_get_number_e() is defined (_e for "error checking") and is
5958 promoted strongly. The old NCONF_get_number is kept around for
5959 binary backward compatibility.
5960 Make it possible for methods to load from something other than a BIO,
5961 by providing a function pointer that is given a name instead of a BIO.
5962 For example, this could be used to load configuration data from an
5963 LDAP server.
5964 [Richard Levitte]
5965
5966 *) Fix for non blocking accept BIOs. Added new I/O special reason
5967 BIO_RR_ACCEPT to cover this case. Previously use of accept BIOs
5968 with non blocking I/O was not possible because no retry code was
5969 implemented. Also added new SSL code SSL_WANT_ACCEPT to cover
5970 this case.
5971 [Steve Henson]
5972
5973 *) Added the beginnings of Rijndael support.
5974 [Ben Laurie]
5975
5976 *) Fix for bug in DirectoryString mask setting. Add support for
5977 X509_NAME_print_ex() in 'req' and X509_print_ex() function
5978 to allow certificate printing to more controllable, additional
5979 'certopt' option to 'x509' to allow new printing options to be
5980 set.
5981 [Steve Henson]
5982
5983 *) Clean old EAY MD5 hack from e_os.h.
5984 [Richard Levitte]
5985
5986 Changes between 0.9.6l and 0.9.6m [17 Mar 2004]
5987
5988 *) Fix null-pointer assignment in do_change_cipher_spec() revealed
5989 by using the Codenomicon TLS Test Tool (CVE-2004-0079)
5990 [Joe Orton, Steve Henson]
5991
5992 Changes between 0.9.6k and 0.9.6l [04 Nov 2003]
5993
5994 *) Fix additional bug revealed by the NISCC test suite:
5995
5996 Stop bug triggering large recursion when presented with
5997 certain ASN.1 tags (CVE-2003-0851)
5998 [Steve Henson]
5999
6000 Changes between 0.9.6j and 0.9.6k [30 Sep 2003]
6001
6002 *) Fix various bugs revealed by running the NISCC test suite:
6003
6004 Stop out of bounds reads in the ASN1 code when presented with
6005 invalid tags (CVE-2003-0543 and CVE-2003-0544).
6006
6007 If verify callback ignores invalid public key errors don't try to check
6008 certificate signature with the NULL public key.
6009
6010 [Steve Henson]
6011
6012 *) In ssl3_accept() (ssl/s3_srvr.c) only accept a client certificate
6013 if the server requested one: as stated in TLS 1.0 and SSL 3.0
6014 specifications.
6015 [Steve Henson]
6016
6017 *) In ssl3_get_client_hello() (ssl/s3_srvr.c), tolerate additional
6018 extra data after the compression methods not only for TLS 1.0
6019 but also for SSL 3.0 (as required by the specification).
6020 [Bodo Moeller; problem pointed out by Matthias Loepfe]
6021
6022 *) Change X509_certificate_type() to mark the key as exported/exportable
6023 when it's 512 *bits* long, not 512 bytes.
6024 [Richard Levitte]
6025
6026 Changes between 0.9.6i and 0.9.6j [10 Apr 2003]
6027
6028 *) Countermeasure against the Klima-Pokorny-Rosa extension of
6029 Bleichbacher's attack on PKCS #1 v1.5 padding: treat
6030 a protocol version number mismatch like a decryption error
6031 in ssl3_get_client_key_exchange (ssl/s3_srvr.c).
6032 [Bodo Moeller]
6033
6034 *) Turn on RSA blinding by default in the default implementation
6035 to avoid a timing attack. Applications that don't want it can call
6036 RSA_blinding_off() or use the new flag RSA_FLAG_NO_BLINDING.
6037 They would be ill-advised to do so in most cases.
6038 [Ben Laurie, Steve Henson, Geoff Thorpe, Bodo Moeller]
6039
6040 *) Change RSA blinding code so that it works when the PRNG is not
6041 seeded (in this case, the secret RSA exponent is abused as
6042 an unpredictable seed -- if it is not unpredictable, there
6043 is no point in blinding anyway). Make RSA blinding thread-safe
6044 by remembering the creator's thread ID in rsa->blinding and
6045 having all other threads use local one-time blinding factors
6046 (this requires more computation than sharing rsa->blinding, but
6047 avoids excessive locking; and if an RSA object is not shared
6048 between threads, blinding will still be very fast).
6049 [Bodo Moeller]
6050
6051 Changes between 0.9.6h and 0.9.6i [19 Feb 2003]
6052
6053 *) In ssl3_get_record (ssl/s3_pkt.c), minimize information leaked
6054 via timing by performing a MAC computation even if incorrrect
6055 block cipher padding has been found. This is a countermeasure
6056 against active attacks where the attacker has to distinguish
6057 between bad padding and a MAC verification error. (CVE-2003-0078)
6058
6059 [Bodo Moeller; problem pointed out by Brice Canvel (EPFL),
6060 Alain Hiltgen (UBS), Serge Vaudenay (EPFL), and
6061 Martin Vuagnoux (EPFL, Ilion)]
6062
6063 Changes between 0.9.6g and 0.9.6h [5 Dec 2002]
6064
6065 *) New function OPENSSL_cleanse(), which is used to cleanse a section of
6066 memory from it's contents. This is done with a counter that will
6067 place alternating values in each byte. This can be used to solve
6068 two issues: 1) the removal of calls to memset() by highly optimizing
6069 compilers, and 2) cleansing with other values than 0, since those can
6070 be read through on certain media, for example a swap space on disk.
6071 [Geoff Thorpe]
6072
6073 *) Bugfix: client side session caching did not work with external caching,
6074 because the session->cipher setting was not restored when reloading
6075 from the external cache. This problem was masked, when
6076 SSL_OP_NETSCAPE_REUSE_CIPHER_CHANGE_BUG (part of SSL_OP_ALL) was set.
6077 (Found by Steve Haslam <steve@araqnid.ddts.net>.)
6078 [Lutz Jaenicke]
6079
6080 *) Fix client_certificate (ssl/s2_clnt.c): The permissible total
6081 length of the REQUEST-CERTIFICATE message is 18 .. 34, not 17 .. 33.
6082 [Zeev Lieber <zeev-l@yahoo.com>]
6083
6084 *) Undo an undocumented change introduced in 0.9.6e which caused
6085 repeated calls to OpenSSL_add_all_ciphers() and
6086 OpenSSL_add_all_digests() to be ignored, even after calling
6087 EVP_cleanup().
6088 [Richard Levitte]
6089
6090 *) Change the default configuration reader to deal with last line not
6091 being properly terminated.
6092 [Richard Levitte]
6093
6094 *) Change X509_NAME_cmp() so it applies the special rules on handling
6095 DN values that are of type PrintableString, as well as RDNs of type
6096 emailAddress where the value has the type ia5String.
6097 [stefank@valicert.com via Richard Levitte]
6098
6099 *) Add a SSL_SESS_CACHE_NO_INTERNAL_STORE flag to take over half
6100 the job SSL_SESS_CACHE_NO_INTERNAL_LOOKUP was inconsistently
6101 doing, define a new flag (SSL_SESS_CACHE_NO_INTERNAL) to be
6102 the bitwise-OR of the two for use by the majority of applications
6103 wanting this behaviour, and update the docs. The documented
6104 behaviour and actual behaviour were inconsistent and had been
6105 changing anyway, so this is more a bug-fix than a behavioural
6106 change.
6107 [Geoff Thorpe, diagnosed by Nadav Har'El]
6108
6109 *) Don't impose a 16-byte length minimum on session IDs in ssl/s3_clnt.c
6110 (the SSL 3.0 and TLS 1.0 specifications allow any length up to 32 bytes).
6111 [Bodo Moeller]
6112
6113 *) Fix initialization code race conditions in
6114 SSLv23_method(), SSLv23_client_method(), SSLv23_server_method(),
6115 SSLv2_method(), SSLv2_client_method(), SSLv2_server_method(),
6116 SSLv3_method(), SSLv3_client_method(), SSLv3_server_method(),
6117 TLSv1_method(), TLSv1_client_method(), TLSv1_server_method(),
6118 ssl2_get_cipher_by_char(),
6119 ssl3_get_cipher_by_char().
6120 [Patrick McCormick <patrick@tellme.com>, Bodo Moeller]
6121
6122 *) Reorder cleanup sequence in SSL_CTX_free(): only remove the ex_data after
6123 the cached sessions are flushed, as the remove_cb() might use ex_data
6124 contents. Bug found by Sam Varshavchik <mrsam@courier-mta.com>
6125 (see [openssl.org #212]).
6126 [Geoff Thorpe, Lutz Jaenicke]
6127
6128 *) Fix typo in OBJ_txt2obj which incorrectly passed the content
6129 length, instead of the encoding length to d2i_ASN1_OBJECT.
6130 [Steve Henson]
6131
6132 Changes between 0.9.6f and 0.9.6g [9 Aug 2002]
6133
6134 *) [In 0.9.6g-engine release:]
6135 Fix crypto/engine/vendor_defns/cswift.h for WIN32 (use '_stdcall').
6136 [Lynn Gazis <lgazis@rainbow.com>]
6137
6138 Changes between 0.9.6e and 0.9.6f [8 Aug 2002]
6139
6140 *) Fix ASN1 checks. Check for overflow by comparing with LONG_MAX
6141 and get fix the header length calculation.
6142 [Florian Weimer <Weimer@CERT.Uni-Stuttgart.DE>,
6143 Alon Kantor <alonk@checkpoint.com> (and others),
6144 Steve Henson]
6145
6146 *) Use proper error handling instead of 'assertions' in buffer
6147 overflow checks added in 0.9.6e. This prevents DoS (the
6148 assertions could call abort()).
6149 [Arne Ansper <arne@ats.cyber.ee>, Bodo Moeller]
6150
6151 Changes between 0.9.6d and 0.9.6e [30 Jul 2002]
6152
6153 *) Add various sanity checks to asn1_get_length() to reject
6154 the ASN1 length bytes if they exceed sizeof(long), will appear
6155 negative or the content length exceeds the length of the
6156 supplied buffer.
6157 [Steve Henson, Adi Stav <stav@mercury.co.il>, James Yonan <jim@ntlp.com>]
6158
6159 *) Fix cipher selection routines: ciphers without encryption had no flags
6160 for the cipher strength set and where therefore not handled correctly
6161 by the selection routines (PR #130).
6162 [Lutz Jaenicke]
6163
6164 *) Fix EVP_dsa_sha macro.
6165 [Nils Larsch]
6166
6167 *) New option
6168 SSL_OP_DONT_INSERT_EMPTY_FRAGMENTS
6169 for disabling the SSL 3.0/TLS 1.0 CBC vulnerability countermeasure
6170 that was added in OpenSSL 0.9.6d.
6171
6172 As the countermeasure turned out to be incompatible with some
6173 broken SSL implementations, the new option is part of SSL_OP_ALL.
6174 SSL_OP_ALL is usually employed when compatibility with weird SSL
6175 implementations is desired (e.g. '-bugs' option to 's_client' and
6176 's_server'), so the new option is automatically set in many
6177 applications.
6178 [Bodo Moeller]
6179
6180 *) Changes in security patch:
6181
6182 Changes marked "(CHATS)" were sponsored by the Defense Advanced
6183 Research Projects Agency (DARPA) and Air Force Research Laboratory,
6184 Air Force Materiel Command, USAF, under agreement number
6185 F30602-01-2-0537.
6186
6187 *) Add various sanity checks to asn1_get_length() to reject
6188 the ASN1 length bytes if they exceed sizeof(long), will appear
6189 negative or the content length exceeds the length of the
6190 supplied buffer. (CVE-2002-0659)
6191 [Steve Henson, Adi Stav <stav@mercury.co.il>, James Yonan <jim@ntlp.com>]
6192
6193 *) Assertions for various potential buffer overflows, not known to
6194 happen in practice.
6195 [Ben Laurie (CHATS)]
6196
6197 *) Various temporary buffers to hold ASCII versions of integers were
6198 too small for 64 bit platforms. (CVE-2002-0655)
6199 [Matthew Byng-Maddick <mbm@aldigital.co.uk> and Ben Laurie (CHATS)>
6200
6201 *) Remote buffer overflow in SSL3 protocol - an attacker could
6202 supply an oversized session ID to a client. (CVE-2002-0656)
6203 [Ben Laurie (CHATS)]
6204
6205 *) Remote buffer overflow in SSL2 protocol - an attacker could
6206 supply an oversized client master key. (CVE-2002-0656)
6207 [Ben Laurie (CHATS)]
6208
6209 Changes between 0.9.6c and 0.9.6d [9 May 2002]
6210
6211 *) Fix crypto/asn1/a_sign.c so that 'parameters' is omitted (not
6212 encoded as NULL) with id-dsa-with-sha1.
6213 [Nils Larsch <nla@trustcenter.de>; problem pointed out by Bodo Moeller]
6214
6215 *) Check various X509_...() return values in apps/req.c.
6216 [Nils Larsch <nla@trustcenter.de>]
6217
6218 *) Fix BASE64 decode (EVP_DecodeUpdate) for data with CR/LF ended lines:
6219 an end-of-file condition would erronously be flagged, when the CRLF
6220 was just at the end of a processed block. The bug was discovered when
6221 processing data through a buffering memory BIO handing the data to a
6222 BASE64-decoding BIO. Bug fund and patch submitted by Pavel Tsekov
6223 <ptsekov@syntrex.com> and Nedelcho Stanev.
6224 [Lutz Jaenicke]
6225
6226 *) Implement a countermeasure against a vulnerability recently found
6227 in CBC ciphersuites in SSL 3.0/TLS 1.0: Send an empty fragment
6228 before application data chunks to avoid the use of known IVs
6229 with data potentially chosen by the attacker.
6230 [Bodo Moeller]
6231
6232 *) Fix length checks in ssl3_get_client_hello().
6233 [Bodo Moeller]
6234
6235 *) TLS/SSL library bugfix: use s->s3->in_read_app_data differently
6236 to prevent ssl3_read_internal() from incorrectly assuming that
6237 ssl3_read_bytes() found application data while handshake
6238 processing was enabled when in fact s->s3->in_read_app_data was
6239 merely automatically cleared during the initial handshake.
6240 [Bodo Moeller; problem pointed out by Arne Ansper <arne@ats.cyber.ee>]
6241
6242 *) Fix object definitions for Private and Enterprise: they were not
6243 recognized in their shortname (=lowercase) representation. Extend
6244 obj_dat.pl to issue an error when using undefined keywords instead
6245 of silently ignoring the problem (Svenning Sorensen
6246 <sss@sss.dnsalias.net>).
6247 [Lutz Jaenicke]
6248
6249 *) Fix DH_generate_parameters() so that it works for 'non-standard'
6250 generators, i.e. generators other than 2 and 5. (Previously, the
6251 code did not properly initialise the 'add' and 'rem' values to
6252 BN_generate_prime().)
6253
6254 In the new general case, we do not insist that 'generator' is
6255 actually a primitive root: This requirement is rather pointless;
6256 a generator of the order-q subgroup is just as good, if not
6257 better.
6258 [Bodo Moeller]
6259
6260 *) Map new X509 verification errors to alerts. Discovered and submitted by
6261 Tom Wu <tom@arcot.com>.
6262 [Lutz Jaenicke]
6263
6264 *) Fix ssl3_pending() (ssl/s3_lib.c) to prevent SSL_pending() from
6265 returning non-zero before the data has been completely received
6266 when using non-blocking I/O.
6267 [Bodo Moeller; problem pointed out by John Hughes]
6268
6269 *) Some of the ciphers missed the strength entry (SSL_LOW etc).
6270 [Ben Laurie, Lutz Jaenicke]
6271
6272 *) Fix bug in SSL_clear(): bad sessions were not removed (found by
6273 Yoram Zahavi <YoramZ@gilian.com>).
6274 [Lutz Jaenicke]
6275
6276 *) Add information about CygWin 1.3 and on, and preserve proper
6277 configuration for the versions before that.
6278 [Corinna Vinschen <vinschen@redhat.com> and Richard Levitte]
6279
6280 *) Make removal from session cache (SSL_CTX_remove_session()) more robust:
6281 check whether we deal with a copy of a session and do not delete from
6282 the cache in this case. Problem reported by "Izhar Shoshani Levi"
6283 <izhar@checkpoint.com>.
6284 [Lutz Jaenicke]
6285
6286 *) Do not store session data into the internal session cache, if it
6287 is never intended to be looked up (SSL_SESS_CACHE_NO_INTERNAL_LOOKUP
6288 flag is set). Proposed by Aslam <aslam@funk.com>.
6289 [Lutz Jaenicke]
6290
6291 *) Have ASN1_BIT_STRING_set_bit() really clear a bit when the requested
6292 value is 0.
6293 [Richard Levitte]
6294
6295 *) [In 0.9.6d-engine release:]
6296 Fix a crashbug and a logic bug in hwcrhk_load_pubkey().
6297 [Toomas Kiisk <vix@cyber.ee> via Richard Levitte]
6298
6299 *) Add the configuration target linux-s390x.
6300 [Neale Ferguson <Neale.Ferguson@SoftwareAG-USA.com> via Richard Levitte]
6301
6302 *) The earlier bugfix for the SSL3_ST_SW_HELLO_REQ_C case of
6303 ssl3_accept (ssl/s3_srvr.c) incorrectly used a local flag
6304 variable as an indication that a ClientHello message has been
6305 received. As the flag value will be lost between multiple
6306 invocations of ssl3_accept when using non-blocking I/O, the
6307 function may not be aware that a handshake has actually taken
6308 place, thus preventing a new session from being added to the
6309 session cache.
6310
6311 To avoid this problem, we now set s->new_session to 2 instead of
6312 using a local variable.
6313 [Lutz Jaenicke, Bodo Moeller]
6314
6315 *) Bugfix: Return -1 from ssl3_get_server_done (ssl3/s3_clnt.c)
6316 if the SSL_R_LENGTH_MISMATCH error is detected.
6317 [Geoff Thorpe, Bodo Moeller]
6318
6319 *) New 'shared_ldflag' column in Configure platform table.
6320 [Richard Levitte]
6321
6322 *) Fix EVP_CIPHER_mode macro.
6323 ["Dan S. Camper" <dan@bti.net>]
6324
6325 *) Fix ssl3_read_bytes (ssl/s3_pkt.c): To ignore messages of unknown
6326 type, we must throw them away by setting rr->length to 0.
6327 [D P Chang <dpc@qualys.com>]
6328
6329 Changes between 0.9.6b and 0.9.6c [21 dec 2001]
6330
6331 *) Fix BN_rand_range bug pointed out by Dominikus Scherkl
6332 <Dominikus.Scherkl@biodata.com>. (The previous implementation
6333 worked incorrectly for those cases where range = 10..._2 and
6334 3*range is two bits longer than range.)
6335 [Bodo Moeller]
6336
6337 *) Only add signing time to PKCS7 structures if it is not already
6338 present.
6339 [Steve Henson]
6340
6341 *) Fix crypto/objects/objects.h: "ld-ce" should be "id-ce",
6342 OBJ_ld_ce should be OBJ_id_ce.
6343 Also some ip-pda OIDs in crypto/objects/objects.txt were
6344 incorrect (cf. RFC 3039).
6345 [Matt Cooper, Frederic Giudicelli, Bodo Moeller]
6346
6347 *) Release CRYPTO_LOCK_DYNLOCK when CRYPTO_destroy_dynlockid()
6348 returns early because it has nothing to do.
6349 [Andy Schneider <andy.schneider@bjss.co.uk>]
6350
6351 *) [In 0.9.6c-engine release:]
6352 Fix mutex callback return values in crypto/engine/hw_ncipher.c.
6353 [Andy Schneider <andy.schneider@bjss.co.uk>]
6354
6355 *) [In 0.9.6c-engine release:]
6356 Add support for Cryptographic Appliance's keyserver technology.
6357 (Use engine 'keyclient')
6358 [Cryptographic Appliances and Geoff Thorpe]
6359
6360 *) Add a configuration entry for OS/390 Unix. The C compiler 'c89'
6361 is called via tools/c89.sh because arguments have to be
6362 rearranged (all '-L' options must appear before the first object
6363 modules).
6364 [Richard Shapiro <rshapiro@abinitio.com>]
6365
6366 *) [In 0.9.6c-engine release:]
6367 Add support for Broadcom crypto accelerator cards, backported
6368 from 0.9.7.
6369 [Broadcom, Nalin Dahyabhai <nalin@redhat.com>, Mark Cox]
6370
6371 *) [In 0.9.6c-engine release:]
6372 Add support for SureWare crypto accelerator cards from
6373 Baltimore Technologies. (Use engine 'sureware')
6374 [Baltimore Technologies and Mark Cox]
6375
6376 *) [In 0.9.6c-engine release:]
6377 Add support for crypto accelerator cards from Accelerated
6378 Encryption Processing, www.aep.ie. (Use engine 'aep')
6379 [AEP Inc. and Mark Cox]
6380
6381 *) Add a configuration entry for gcc on UnixWare.
6382 [Gary Benson <gbenson@redhat.com>]
6383
6384 *) Change ssl/s2_clnt.c and ssl/s2_srvr.c so that received handshake
6385 messages are stored in a single piece (fixed-length part and
6386 variable-length part combined) and fix various bugs found on the way.
6387 [Bodo Moeller]
6388
6389 *) Disable caching in BIO_gethostbyname(), directly use gethostbyname()
6390 instead. BIO_gethostbyname() does not know what timeouts are
6391 appropriate, so entries would stay in cache even when they have
6392 become invalid.
6393 [Bodo Moeller; problem pointed out by Rich Salz <rsalz@zolera.com>
6394
6395 *) Change ssl23_get_client_hello (ssl/s23_srvr.c) behaviour when
6396 faced with a pathologically small ClientHello fragment that does
6397 not contain client_version: Instead of aborting with an error,
6398 simply choose the highest available protocol version (i.e.,
6399 TLS 1.0 unless it is disabled). In practice, ClientHello
6400 messages are never sent like this, but this change gives us
6401 strictly correct behaviour at least for TLS.
6402 [Bodo Moeller]
6403
6404 *) Fix SSL handshake functions and SSL_clear() such that SSL_clear()
6405 never resets s->method to s->ctx->method when called from within
6406 one of the SSL handshake functions.
6407 [Bodo Moeller; problem pointed out by Niko Baric]
6408
6409 *) In ssl3_get_client_hello (ssl/s3_srvr.c), generate a fatal alert
6410 (sent using the client's version number) if client_version is
6411 smaller than the protocol version in use. Also change
6412 ssl23_get_client_hello (ssl/s23_srvr.c) to select TLS 1.0 if
6413 the client demanded SSL 3.0 but only TLS 1.0 is enabled; then
6414 the client will at least see that alert.
6415 [Bodo Moeller]
6416
6417 *) Fix ssl3_get_message (ssl/s3_both.c) to handle message fragmentation
6418 correctly.
6419 [Bodo Moeller]
6420
6421 *) Avoid infinite loop in ssl3_get_message (ssl/s3_both.c) if a
6422 client receives HelloRequest while in a handshake.
6423 [Bodo Moeller; bug noticed by Andy Schneider <andy.schneider@bjss.co.uk>]
6424
6425 *) Bugfix in ssl3_accept (ssl/s3_srvr.c): Case SSL3_ST_SW_HELLO_REQ_C
6426 should end in 'break', not 'goto end' which circuments various
6427 cleanups done in state SSL_ST_OK. But session related stuff
6428 must be disabled for SSL_ST_OK in the case that we just sent a
6429 HelloRequest.
6430
6431 Also avoid some overhead by not calling ssl_init_wbio_buffer()
6432 before just sending a HelloRequest.
6433 [Bodo Moeller, Eric Rescorla <ekr@rtfm.com>]
6434
6435 *) Fix ssl/s3_enc.c, ssl/t1_enc.c and ssl/s3_pkt.c so that we don't
6436 reveal whether illegal block cipher padding was found or a MAC
6437 verification error occured. (Neither SSLerr() codes nor alerts
6438 are directly visible to potential attackers, but the information
6439 may leak via logfiles.)
6440
6441 Similar changes are not required for the SSL 2.0 implementation
6442 because the number of padding bytes is sent in clear for SSL 2.0,
6443 and the extra bytes are just ignored. However ssl/s2_pkt.c
6444 failed to verify that the purported number of padding bytes is in
6445 the legal range.
6446 [Bodo Moeller]
6447
6448 *) Add OpenUNIX-8 support including shared libraries
6449 (Boyd Lynn Gerber <gerberb@zenez.com>).
6450 [Lutz Jaenicke]
6451
6452 *) Improve RSA_padding_check_PKCS1_OAEP() check again to avoid
6453 'wristwatch attack' using huge encoding parameters (cf.
6454 James H. Manger's CRYPTO 2001 paper). Note that the
6455 RSA_PKCS1_OAEP_PADDING case of RSA_private_decrypt() does not use
6456 encoding parameters and hence was not vulnerable.
6457 [Bodo Moeller]
6458
6459 *) BN_sqr() bug fix.
6460 [Ulf Möller, reported by Jim Ellis <jim.ellis@cavium.com>]
6461
6462 *) Rabin-Miller test analyses assume uniformly distributed witnesses,
6463 so use BN_pseudo_rand_range() instead of using BN_pseudo_rand()
6464 followed by modular reduction.
6465 [Bodo Moeller; pointed out by Adam Young <AYoung1@NCSUS.JNJ.COM>]
6466
6467 *) Add BN_pseudo_rand_range() with obvious functionality: BN_rand_range()
6468 equivalent based on BN_pseudo_rand() instead of BN_rand().
6469 [Bodo Moeller]
6470
6471 *) s3_srvr.c: allow sending of large client certificate lists (> 16 kB).
6472 This function was broken, as the check for a new client hello message
6473 to handle SGC did not allow these large messages.
6474 (Tracked down by "Douglas E. Engert" <deengert@anl.gov>.)
6475 [Lutz Jaenicke]
6476
6477 *) Add alert descriptions for TLSv1 to SSL_alert_desc_string[_long]().
6478 [Lutz Jaenicke]
6479
6480 *) Fix buggy behaviour of BIO_get_num_renegotiates() and BIO_ctrl()
6481 for BIO_C_GET_WRITE_BUF_SIZE ("Stephen Hinton" <shinton@netopia.com>).
6482 [Lutz Jaenicke]
6483
6484 *) Rework the configuration and shared library support for Tru64 Unix.
6485 The configuration part makes use of modern compiler features and
6486 still retains old compiler behavior for those that run older versions
6487 of the OS. The shared library support part includes a variant that
6488 uses the RPATH feature, and is available through the special
6489 configuration target "alpha-cc-rpath", which will never be selected
6490 automatically.
6491 [Tim Mooney <mooney@dogbert.cc.ndsu.NoDak.edu> via Richard Levitte]
6492
6493 *) In ssl3_get_key_exchange (ssl/s3_clnt.c), call ssl3_get_message()
6494 with the same message size as in ssl3_get_certificate_request().
6495 Otherwise, if no ServerKeyExchange message occurs, CertificateRequest
6496 messages might inadvertently be reject as too long.
6497 [Petr Lampa <lampa@fee.vutbr.cz>]
6498
6499 *) Enhanced support for IA-64 Unix platforms (well, Linux and HP-UX).
6500 [Andy Polyakov]
6501
6502 *) Modified SSL library such that the verify_callback that has been set
6503 specificly for an SSL object with SSL_set_verify() is actually being
6504 used. Before the change, a verify_callback set with this function was
6505 ignored and the verify_callback() set in the SSL_CTX at the time of
6506 the call was used. New function X509_STORE_CTX_set_verify_cb() introduced
6507 to allow the necessary settings.
6508 [Lutz Jaenicke]
6509
6510 *) Initialize static variable in crypto/dsa/dsa_lib.c and crypto/dh/dh_lib.c
6511 explicitly to NULL, as at least on Solaris 8 this seems not always to be
6512 done automatically (in contradiction to the requirements of the C
6513 standard). This made problems when used from OpenSSH.
6514 [Lutz Jaenicke]
6515
6516 *) In OpenSSL 0.9.6a and 0.9.6b, crypto/dh/dh_key.c ignored
6517 dh->length and always used
6518
6519 BN_rand_range(priv_key, dh->p).
6520
6521 BN_rand_range() is not necessary for Diffie-Hellman, and this
6522 specific range makes Diffie-Hellman unnecessarily inefficient if
6523 dh->length (recommended exponent length) is much smaller than the
6524 length of dh->p. We could use BN_rand_range() if the order of
6525 the subgroup was stored in the DH structure, but we only have
6526 dh->length.
6527
6528 So switch back to
6529
6530 BN_rand(priv_key, l, ...)
6531
6532 where 'l' is dh->length if this is defined, or BN_num_bits(dh->p)-1
6533 otherwise.
6534 [Bodo Moeller]
6535
6536 *) In
6537
6538 RSA_eay_public_encrypt
6539 RSA_eay_private_decrypt
6540 RSA_eay_private_encrypt (signing)
6541 RSA_eay_public_decrypt (signature verification)
6542
6543 (default implementations for RSA_public_encrypt,
6544 RSA_private_decrypt, RSA_private_encrypt, RSA_public_decrypt),
6545 always reject numbers >= n.
6546 [Bodo Moeller]
6547
6548 *) In crypto/rand/md_rand.c, use a new short-time lock CRYPTO_LOCK_RAND2
6549 to synchronize access to 'locking_thread'. This is necessary on
6550 systems where access to 'locking_thread' (an 'unsigned long'
6551 variable) is not atomic.
6552 [Bodo Moeller]
6553
6554 *) In crypto/rand/md_rand.c, set 'locking_thread' to current thread's ID
6555 *before* setting the 'crypto_lock_rand' flag. The previous code had
6556 a race condition if 0 is a valid thread ID.
6557 [Travis Vitek <vitek@roguewave.com>]
6558
6559 *) Add support for shared libraries under Irix.
6560 [Albert Chin-A-Young <china@thewrittenword.com>]
6561
6562 *) Add configuration option to build on Linux on both big-endian and
6563 little-endian MIPS.
6564 [Ralf Baechle <ralf@uni-koblenz.de>]
6565
6566 *) Add the possibility to create shared libraries on HP-UX.
6567 [Richard Levitte]
6568
6569 Changes between 0.9.6a and 0.9.6b [9 Jul 2001]
6570
6571 *) Change ssleay_rand_bytes (crypto/rand/md_rand.c)
6572 to avoid a SSLeay/OpenSSL PRNG weakness pointed out by
6573 Markku-Juhani O. Saarinen <markku-juhani.saarinen@nokia.com>:
6574 PRNG state recovery was possible based on the output of
6575 one PRNG request appropriately sized to gain knowledge on
6576 'md' followed by enough consecutive 1-byte PRNG requests
6577 to traverse all of 'state'.
6578
6579 1. When updating 'md_local' (the current thread's copy of 'md')
6580 during PRNG output generation, hash all of the previous
6581 'md_local' value, not just the half used for PRNG output.
6582
6583 2. Make the number of bytes from 'state' included into the hash
6584 independent from the number of PRNG bytes requested.
6585
6586 The first measure alone would be sufficient to avoid
6587 Markku-Juhani's attack. (Actually it had never occurred
6588 to me that the half of 'md_local' used for chaining was the
6589 half from which PRNG output bytes were taken -- I had always
6590 assumed that the secret half would be used.) The second
6591 measure makes sure that additional data from 'state' is never
6592 mixed into 'md_local' in small portions; this heuristically
6593 further strengthens the PRNG.
6594 [Bodo Moeller]
6595
6596 *) Fix crypto/bn/asm/mips3.s.
6597 [Andy Polyakov]
6598
6599 *) When only the key is given to "enc", the IV is undefined. Print out
6600 an error message in this case.
6601 [Lutz Jaenicke]
6602
6603 *) Handle special case when X509_NAME is empty in X509 printing routines.
6604 [Steve Henson]
6605
6606 *) In dsa_do_verify (crypto/dsa/dsa_ossl.c), verify that r and s are
6607 positive and less than q.
6608 [Bodo Moeller]
6609
6610 *) Don't change *pointer in CRYPTO_add_lock() is add_lock_callback is
6611 used: it isn't thread safe and the add_lock_callback should handle
6612 that itself.
6613 [Paul Rose <Paul.Rose@bridge.com>]
6614
6615 *) Verify that incoming data obeys the block size in
6616 ssl3_enc (ssl/s3_enc.c) and tls1_enc (ssl/t1_enc.c).
6617 [Bodo Moeller]
6618
6619 *) Fix OAEP check.
6620 [Ulf Möller, Bodo Möller]
6621
6622 *) The countermeasure against Bleichbacher's attack on PKCS #1 v1.5
6623 RSA encryption was accidentally removed in s3_srvr.c in OpenSSL 0.9.5
6624 when fixing the server behaviour for backwards-compatible 'client
6625 hello' messages. (Note that the attack is impractical against
6626 SSL 3.0 and TLS 1.0 anyway because length and version checking
6627 means that the probability of guessing a valid ciphertext is
6628 around 2^-40; see section 5 in Bleichenbacher's CRYPTO '98
6629 paper.)
6630
6631 Before 0.9.5, the countermeasure (hide the error by generating a
6632 random 'decryption result') did not work properly because
6633 ERR_clear_error() was missing, meaning that SSL_get_error() would
6634 detect the supposedly ignored error.
6635
6636 Both problems are now fixed.
6637 [Bodo Moeller]
6638
6639 *) In crypto/bio/bf_buff.c, increase DEFAULT_BUFFER_SIZE to 4096
6640 (previously it was 1024).
6641 [Bodo Moeller]
6642
6643 *) Fix for compatibility mode trust settings: ignore trust settings
6644 unless some valid trust or reject settings are present.
6645 [Steve Henson]
6646
6647 *) Fix for blowfish EVP: its a variable length cipher.
6648 [Steve Henson]
6649
6650 *) Fix various bugs related to DSA S/MIME verification. Handle missing
6651 parameters in DSA public key structures and return an error in the
6652 DSA routines if parameters are absent.
6653 [Steve Henson]
6654
6655 *) In versions up to 0.9.6, RAND_file_name() resorted to file ".rnd"
6656 in the current directory if neither $RANDFILE nor $HOME was set.
6657 RAND_file_name() in 0.9.6a returned NULL in this case. This has
6658 caused some confusion to Windows users who haven't defined $HOME.
6659 Thus RAND_file_name() is changed again: e_os.h can define a
6660 DEFAULT_HOME, which will be used if $HOME is not set.
6661 For Windows, we use "C:"; on other platforms, we still require
6662 environment variables.
6663
6664 *) Move 'if (!initialized) RAND_poll()' into regions protected by
6665 CRYPTO_LOCK_RAND. This is not strictly necessary, but avoids
6666 having multiple threads call RAND_poll() concurrently.
6667 [Bodo Moeller]
6668
6669 *) In crypto/rand/md_rand.c, replace 'add_do_not_lock' flag by a
6670 combination of a flag and a thread ID variable.
6671 Otherwise while one thread is in ssleay_rand_bytes (which sets the
6672 flag), *other* threads can enter ssleay_add_bytes without obeying
6673 the CRYPTO_LOCK_RAND lock (and may even illegally release the lock
6674 that they do not hold after the first thread unsets add_do_not_lock).
6675 [Bodo Moeller]
6676
6677 *) Change bctest again: '-x' expressions are not available in all
6678 versions of 'test'.
6679 [Bodo Moeller]
6680
6681 Changes between 0.9.6 and 0.9.6a [5 Apr 2001]
6682
6683 *) Fix a couple of memory leaks in PKCS7_dataDecode()
6684 [Steve Henson, reported by Heyun Zheng <hzheng@atdsprint.com>]
6685
6686 *) Change Configure and Makefiles to provide EXE_EXT, which will contain
6687 the default extension for executables, if any. Also, make the perl
6688 scripts that use symlink() to test if it really exists and use "cp"
6689 if it doesn't. All this made OpenSSL compilable and installable in
6690 CygWin.
6691 [Richard Levitte]
6692
6693 *) Fix for asn1_GetSequence() for indefinite length constructed data.
6694 If SEQUENCE is length is indefinite just set c->slen to the total
6695 amount of data available.
6696 [Steve Henson, reported by shige@FreeBSD.org]
6697 [This change does not apply to 0.9.7.]
6698
6699 *) Change bctest to avoid here-documents inside command substitution
6700 (workaround for FreeBSD /bin/sh bug).
6701 For compatibility with Ultrix, avoid shell functions (introduced
6702 in the bctest version that searches along $PATH).
6703 [Bodo Moeller]
6704
6705 *) Rename 'des_encrypt' to 'des_encrypt1'. This avoids the clashes
6706 with des_encrypt() defined on some operating systems, like Solaris
6707 and UnixWare.
6708 [Richard Levitte]
6709
6710 *) Check the result of RSA-CRT (see D. Boneh, R. DeMillo, R. Lipton:
6711 On the Importance of Eliminating Errors in Cryptographic
6712 Computations, J. Cryptology 14 (2001) 2, 101-119,
6713 http://theory.stanford.edu/~dabo/papers/faults.ps.gz).
6714 [Ulf Moeller]
6715
6716 *) MIPS assembler BIGNUM division bug fix.
6717 [Andy Polyakov]
6718
6719 *) Disabled incorrect Alpha assembler code.
6720 [Richard Levitte]
6721
6722 *) Fix PKCS#7 decode routines so they correctly update the length
6723 after reading an EOC for the EXPLICIT tag.
6724 [Steve Henson]
6725 [This change does not apply to 0.9.7.]
6726
6727 *) Fix bug in PKCS#12 key generation routines. This was triggered
6728 if a 3DES key was generated with a 0 initial byte. Include
6729 PKCS12_BROKEN_KEYGEN compilation option to retain the old
6730 (but broken) behaviour.
6731 [Steve Henson]
6732
6733 *) Enhance bctest to search for a working bc along $PATH and print
6734 it when found.
6735 [Tim Rice <tim@multitalents.net> via Richard Levitte]
6736
6737 *) Fix memory leaks in err.c: free err_data string if necessary;
6738 don't write to the wrong index in ERR_set_error_data.
6739 [Bodo Moeller]
6740
6741 *) Implement ssl23_peek (analogous to ssl23_read), which previously
6742 did not exist.
6743 [Bodo Moeller]
6744
6745 *) Replace rdtsc with _emit statements for VC++ version 5.
6746 [Jeremy Cooper <jeremy@baymoo.org>]
6747
6748 *) Make it possible to reuse SSLv2 sessions.
6749 [Richard Levitte]
6750
6751 *) In copy_email() check for >= 0 as a return value for
6752 X509_NAME_get_index_by_NID() since 0 is a valid index.
6753 [Steve Henson reported by Massimiliano Pala <madwolf@opensca.org>]
6754
6755 *) Avoid coredump with unsupported or invalid public keys by checking if
6756 X509_get_pubkey() fails in PKCS7_verify(). Fix memory leak when
6757 PKCS7_verify() fails with non detached data.
6758 [Steve Henson]
6759
6760 *) Don't use getenv in library functions when run as setuid/setgid.
6761 New function OPENSSL_issetugid().
6762 [Ulf Moeller]
6763
6764 *) Avoid false positives in memory leak detection code (crypto/mem_dbg.c)
6765 due to incorrect handling of multi-threading:
6766
6767 1. Fix timing glitch in the MemCheck_off() portion of CRYPTO_mem_ctrl().
6768
6769 2. Fix logical glitch in is_MemCheck_on() aka CRYPTO_is_mem_check_on().
6770
6771 3. Count how many times MemCheck_off() has been called so that
6772 nested use can be treated correctly. This also avoids
6773 inband-signalling in the previous code (which relied on the
6774 assumption that thread ID 0 is impossible).
6775 [Bodo Moeller]
6776
6777 *) Add "-rand" option also to s_client and s_server.
6778 [Lutz Jaenicke]
6779
6780 *) Fix CPU detection on Irix 6.x.
6781 [Kurt Hockenbury <khockenb@stevens-tech.edu> and
6782 "Bruce W. Forsberg" <bruce.forsberg@baesystems.com>]
6783
6784 *) Fix X509_NAME bug which produced incorrect encoding if X509_NAME
6785 was empty.
6786 [Steve Henson]
6787 [This change does not apply to 0.9.7.]
6788
6789 *) Use the cached encoding of an X509_NAME structure rather than
6790 copying it. This is apparently the reason for the libsafe "errors"
6791 but the code is actually correct.
6792 [Steve Henson]
6793
6794 *) Add new function BN_rand_range(), and fix DSA_sign_setup() to prevent
6795 Bleichenbacher's DSA attack.
6796 Extend BN_[pseudo_]rand: As before, top=1 forces the highest two bits
6797 to be set and top=0 forces the highest bit to be set; top=-1 is new
6798 and leaves the highest bit random.
6799 [Ulf Moeller, Bodo Moeller]
6800
6801 *) In the NCONF_...-based implementations for CONF_... queries
6802 (crypto/conf/conf_lib.c), if the input LHASH is NULL, avoid using
6803 a temporary CONF structure with the data component set to NULL
6804 (which gives segmentation faults in lh_retrieve).
6805 Instead, use NULL for the CONF pointer in CONF_get_string and
6806 CONF_get_number (which may use environment variables) and directly
6807 return NULL from CONF_get_section.
6808 [Bodo Moeller]
6809
6810 *) Fix potential buffer overrun for EBCDIC.
6811 [Ulf Moeller]
6812
6813 *) Tolerate nonRepudiation as being valid for S/MIME signing and certSign
6814 keyUsage if basicConstraints absent for a CA.
6815 [Steve Henson]
6816
6817 *) Make SMIME_write_PKCS7() write mail header values with a format that
6818 is more generally accepted (no spaces before the semicolon), since
6819 some programs can't parse those values properly otherwise. Also make
6820 sure BIO's that break lines after each write do not create invalid
6821 headers.
6822 [Richard Levitte]
6823
6824 *) Make the CRL encoding routines work with empty SEQUENCE OF. The
6825 macros previously used would not encode an empty SEQUENCE OF
6826 and break the signature.
6827 [Steve Henson]
6828 [This change does not apply to 0.9.7.]
6829
6830 *) Zero the premaster secret after deriving the master secret in
6831 DH ciphersuites.
6832 [Steve Henson]
6833
6834 *) Add some EVP_add_digest_alias registrations (as found in
6835 OpenSSL_add_all_digests()) to SSL_library_init()
6836 aka OpenSSL_add_ssl_algorithms(). This provides improved
6837 compatibility with peers using X.509 certificates
6838 with unconventional AlgorithmIdentifier OIDs.
6839 [Bodo Moeller]
6840
6841 *) Fix for Irix with NO_ASM.
6842 ["Bruce W. Forsberg" <bruce.forsberg@baesystems.com>]
6843
6844 *) ./config script fixes.
6845 [Ulf Moeller, Richard Levitte]
6846
6847 *) Fix 'openssl passwd -1'.
6848 [Bodo Moeller]
6849
6850 *) Change PKCS12_key_gen_asc() so it can cope with non null
6851 terminated strings whose length is passed in the passlen
6852 parameter, for example from PEM callbacks. This was done
6853 by adding an extra length parameter to asc2uni().
6854 [Steve Henson, reported by <oddissey@samsung.co.kr>]
6855
6856 *) Fix C code generated by 'openssl dsaparam -C': If a BN_bin2bn
6857 call failed, free the DSA structure.
6858 [Bodo Moeller]
6859
6860 *) Fix to uni2asc() to cope with zero length Unicode strings.
6861 These are present in some PKCS#12 files.
6862 [Steve Henson]
6863
6864 *) Increase s2->wbuf allocation by one byte in ssl2_new (ssl/s2_lib.c).
6865 Otherwise do_ssl_write (ssl/s2_pkt.c) will write beyond buffer limits
6866 when writing a 32767 byte record.
6867 [Bodo Moeller; problem reported by Eric Day <eday@concentric.net>]
6868
6869 *) In RSA_eay_public_{en,ed}crypt and RSA_eay_mod_exp (rsa_eay.c),
6870 obtain lock CRYPTO_LOCK_RSA before setting rsa->_method_mod_{n,p,q}.
6871
6872 (RSA objects have a reference count access to which is protected
6873 by CRYPTO_LOCK_RSA [see rsa_lib.c, s3_srvr.c, ssl_cert.c, ssl_rsa.c],
6874 so they are meant to be shared between threads.)
6875 [Bodo Moeller, Geoff Thorpe; original patch submitted by
6876 "Reddie, Steven" <Steven.Reddie@ca.com>]
6877
6878 *) Fix a deadlock in CRYPTO_mem_leaks().
6879 [Bodo Moeller]
6880
6881 *) Use better test patterns in bntest.
6882 [Ulf Möller]
6883
6884 *) rand_win.c fix for Borland C.
6885 [Ulf Möller]
6886
6887 *) BN_rshift bugfix for n == 0.
6888 [Bodo Moeller]
6889
6890 *) Add a 'bctest' script that checks for some known 'bc' bugs
6891 so that 'make test' does not abort just because 'bc' is broken.
6892 [Bodo Moeller]
6893
6894 *) Store verify_result within SSL_SESSION also for client side to
6895 avoid potential security hole. (Re-used sessions on the client side
6896 always resulted in verify_result==X509_V_OK, not using the original
6897 result of the server certificate verification.)
6898 [Lutz Jaenicke]
6899
6900 *) Fix ssl3_pending: If the record in s->s3->rrec is not of type
6901 SSL3_RT_APPLICATION_DATA, return 0.
6902 Similarly, change ssl2_pending to return 0 if SSL_in_init(s) is true.
6903 [Bodo Moeller]
6904
6905 *) Fix SSL_peek:
6906 Both ssl2_peek and ssl3_peek, which were totally broken in earlier
6907 releases, have been re-implemented by renaming the previous
6908 implementations of ssl2_read and ssl3_read to ssl2_read_internal
6909 and ssl3_read_internal, respectively, and adding 'peek' parameters
6910 to them. The new ssl[23]_{read,peek} functions are calls to
6911 ssl[23]_read_internal with the 'peek' flag set appropriately.
6912 A 'peek' parameter has also been added to ssl3_read_bytes, which
6913 does the actual work for ssl3_read_internal.
6914 [Bodo Moeller]
6915
6916 *) Initialise "ex_data" member of RSA/DSA/DH structures prior to calling
6917 the method-specific "init()" handler. Also clean up ex_data after
6918 calling the method-specific "finish()" handler. Previously, this was
6919 happening the other way round.
6920 [Geoff Thorpe]
6921
6922 *) Increase BN_CTX_NUM (the number of BIGNUMs in a BN_CTX) to 16.
6923 The previous value, 12, was not always sufficient for BN_mod_exp().
6924 [Bodo Moeller]
6925
6926 *) Make sure that shared libraries get the internal name engine with
6927 the full version number and not just 0. This should mark the
6928 shared libraries as not backward compatible. Of course, this should
6929 be changed again when we can guarantee backward binary compatibility.
6930 [Richard Levitte]
6931
6932 *) Fix typo in get_cert_by_subject() in by_dir.c
6933 [Jean-Marc Desperrier <jean-marc.desperrier@certplus.com>]
6934
6935 *) Rework the system to generate shared libraries:
6936
6937 - Make note of the expected extension for the shared libraries and
6938 if there is a need for symbolic links from for example libcrypto.so.0
6939 to libcrypto.so.0.9.7. There is extended info in Configure for
6940 that.
6941
6942 - Make as few rebuilds of the shared libraries as possible.
6943
6944 - Still avoid linking the OpenSSL programs with the shared libraries.
6945
6946 - When installing, install the shared libraries separately from the
6947 static ones.
6948 [Richard Levitte]
6949
6950 *) Fix SSL_CTX_set_read_ahead macro to actually use its argument.
6951
6952 Copy SSL_CTX's read_ahead flag to SSL object directly in SSL_new
6953 and not in SSL_clear because the latter is also used by the
6954 accept/connect functions; previously, the settings made by
6955 SSL_set_read_ahead would be lost during the handshake.
6956 [Bodo Moeller; problems reported by Anders Gertz <gertz@epact.se>]
6957
6958 *) Correct util/mkdef.pl to be selective about disabled algorithms.
6959 Previously, it would create entries for disableed algorithms no
6960 matter what.
6961 [Richard Levitte]
6962
6963 *) Added several new manual pages for SSL_* function.
6964 [Lutz Jaenicke]
6965
6966 Changes between 0.9.5a and 0.9.6 [24 Sep 2000]
6967
6968 *) In ssl23_get_client_hello, generate an error message when faced
6969 with an initial SSL 3.0/TLS record that is too small to contain the
6970 first two bytes of the ClientHello message, i.e. client_version.
6971 (Note that this is a pathologic case that probably has never happened
6972 in real life.) The previous approach was to use the version number
6973 from the record header as a substitute; but our protocol choice
6974 should not depend on that one because it is not authenticated
6975 by the Finished messages.
6976 [Bodo Moeller]
6977
6978 *) More robust randomness gathering functions for Windows.
6979 [Jeffrey Altman <jaltman@columbia.edu>]
6980
6981 *) For compatibility reasons if the flag X509_V_FLAG_ISSUER_CHECK is
6982 not set then we don't setup the error code for issuer check errors
6983 to avoid possibly overwriting other errors which the callback does
6984 handle. If an application does set the flag then we assume it knows
6985 what it is doing and can handle the new informational codes
6986 appropriately.
6987 [Steve Henson]
6988
6989 *) Fix for a nasty bug in ASN1_TYPE handling. ASN1_TYPE is used for
6990 a general "ANY" type, as such it should be able to decode anything
6991 including tagged types. However it didn't check the class so it would
6992 wrongly interpret tagged types in the same way as their universal
6993 counterpart and unknown types were just rejected. Changed so that the
6994 tagged and unknown types are handled in the same way as a SEQUENCE:
6995 that is the encoding is stored intact. There is also a new type
6996 "V_ASN1_OTHER" which is used when the class is not universal, in this
6997 case we have no idea what the actual type is so we just lump them all
6998 together.
6999 [Steve Henson]
7000
7001 *) On VMS, stdout may very well lead to a file that is written to
7002 in a record-oriented fashion. That means that every write() will
7003 write a separate record, which will be read separately by the
7004 programs trying to read from it. This can be very confusing.
7005
7006 The solution is to put a BIO filter in the way that will buffer
7007 text until a linefeed is reached, and then write everything a
7008 line at a time, so every record written will be an actual line,
7009 not chunks of lines and not (usually doesn't happen, but I've
7010 seen it once) several lines in one record. BIO_f_linebuffer() is
7011 the answer.
7012
7013 Currently, it's a VMS-only method, because that's where it has
7014 been tested well enough.
7015 [Richard Levitte]
7016
7017 *) Remove 'optimized' squaring variant in BN_mod_mul_montgomery,
7018 it can return incorrect results.
7019 (Note: The buggy variant was not enabled in OpenSSL 0.9.5a,
7020 but it was in 0.9.6-beta[12].)
7021 [Bodo Moeller]
7022
7023 *) Disable the check for content being present when verifying detached
7024 signatures in pk7_smime.c. Some versions of Netscape (wrongly)
7025 include zero length content when signing messages.
7026 [Steve Henson]
7027
7028 *) New BIO_shutdown_wr macro, which invokes the BIO_C_SHUTDOWN_WR
7029 BIO_ctrl (for BIO pairs).
7030 [Bodo Möller]
7031
7032 *) Add DSO method for VMS.
7033 [Richard Levitte]
7034
7035 *) Bug fix: Montgomery multiplication could produce results with the
7036 wrong sign.
7037 [Ulf Möller]
7038
7039 *) Add RPM specification openssl.spec and modify it to build three
7040 packages. The default package contains applications, application
7041 documentation and run-time libraries. The devel package contains
7042 include files, static libraries and function documentation. The
7043 doc package contains the contents of the doc directory. The original
7044 openssl.spec was provided by Damien Miller <djm@mindrot.org>.
7045 [Richard Levitte]
7046
7047 *) Add a large number of documentation files for many SSL routines.
7048 [Lutz Jaenicke <Lutz.Jaenicke@aet.TU-Cottbus.DE>]
7049
7050 *) Add a configuration entry for Sony News 4.
7051 [NAKAJI Hiroyuki <nakaji@tutrp.tut.ac.jp>]
7052
7053 *) Don't set the two most significant bits to one when generating a
7054 random number < q in the DSA library.
7055 [Ulf Möller]
7056
7057 *) New SSL API mode 'SSL_MODE_AUTO_RETRY'. This disables the default
7058 behaviour that SSL_read may result in SSL_ERROR_WANT_READ (even if
7059 the underlying transport is blocking) if a handshake took place.
7060 (The default behaviour is needed by applications such as s_client
7061 and s_server that use select() to determine when to use SSL_read;
7062 but for applications that know in advance when to expect data, it
7063 just makes things more complicated.)
7064 [Bodo Moeller]
7065
7066 *) Add RAND_egd_bytes(), which gives control over the number of bytes read
7067 from EGD.
7068 [Ben Laurie]
7069
7070 *) Add a few more EBCDIC conditionals that make `req' and `x509'
7071 work better on such systems.
7072 [Martin Kraemer <Martin.Kraemer@MchP.Siemens.De>]
7073
7074 *) Add two demo programs for PKCS12_parse() and PKCS12_create().
7075 Update PKCS12_parse() so it copies the friendlyName and the
7076 keyid to the certificates aux info.
7077 [Steve Henson]
7078
7079 *) Fix bug in PKCS7_verify() which caused an infinite loop
7080 if there was more than one signature.
7081 [Sven Uszpelkat <su@celocom.de>]
7082
7083 *) Major change in util/mkdef.pl to include extra information
7084 about each symbol, as well as presentig variables as well
7085 as functions. This change means that there's n more need
7086 to rebuild the .num files when some algorithms are excluded.
7087 [Richard Levitte]
7088
7089 *) Allow the verify time to be set by an application,
7090 rather than always using the current time.
7091 [Steve Henson]
7092
7093 *) Phase 2 verify code reorganisation. The certificate
7094 verify code now looks up an issuer certificate by a
7095 number of criteria: subject name, authority key id
7096 and key usage. It also verifies self signed certificates
7097 by the same criteria. The main comparison function is
7098 X509_check_issued() which performs these checks.
7099
7100 Lot of changes were necessary in order to support this
7101 without completely rewriting the lookup code.
7102
7103 Authority and subject key identifier are now cached.
7104
7105 The LHASH 'certs' is X509_STORE has now been replaced
7106 by a STACK_OF(X509_OBJECT). This is mainly because an
7107 LHASH can't store or retrieve multiple objects with
7108 the same hash value.
7109
7110 As a result various functions (which were all internal
7111 use only) have changed to handle the new X509_STORE
7112 structure. This will break anything that messed round
7113 with X509_STORE internally.
7114
7115 The functions X509_STORE_add_cert() now checks for an
7116 exact match, rather than just subject name.
7117
7118 The X509_STORE API doesn't directly support the retrieval
7119 of multiple certificates matching a given criteria, however
7120 this can be worked round by performing a lookup first
7121 (which will fill the cache with candidate certificates)
7122 and then examining the cache for matches. This is probably
7123 the best we can do without throwing out X509_LOOKUP
7124 entirely (maybe later...).
7125
7126 The X509_VERIFY_CTX structure has been enhanced considerably.
7127
7128 All certificate lookup operations now go via a get_issuer()
7129 callback. Although this currently uses an X509_STORE it
7130 can be replaced by custom lookups. This is a simple way
7131 to bypass the X509_STORE hackery necessary to make this
7132 work and makes it possible to use more efficient techniques
7133 in future. A very simple version which uses a simple
7134 STACK for its trusted certificate store is also provided
7135 using X509_STORE_CTX_trusted_stack().
7136
7137 The verify_cb() and verify() callbacks now have equivalents
7138 in the X509_STORE_CTX structure.
7139
7140 X509_STORE_CTX also has a 'flags' field which can be used
7141 to customise the verify behaviour.
7142 [Steve Henson]
7143
7144 *) Add new PKCS#7 signing option PKCS7_NOSMIMECAP which
7145 excludes S/MIME capabilities.
7146 [Steve Henson]
7147
7148 *) When a certificate request is read in keep a copy of the
7149 original encoding of the signed data and use it when outputing
7150 again. Signatures then use the original encoding rather than
7151 a decoded, encoded version which may cause problems if the
7152 request is improperly encoded.
7153 [Steve Henson]
7154
7155 *) For consistency with other BIO_puts implementations, call
7156 buffer_write(b, ...) directly in buffer_puts instead of calling
7157 BIO_write(b, ...).
7158
7159 In BIO_puts, increment b->num_write as in BIO_write.
7160 [Peter.Sylvester@EdelWeb.fr]
7161
7162 *) Fix BN_mul_word for the case where the word is 0. (We have to use
7163 BN_zero, we may not return a BIGNUM with an array consisting of
7164 words set to zero.)
7165 [Bodo Moeller]
7166
7167 *) Avoid calling abort() from within the library when problems are
7168 detected, except if preprocessor symbols have been defined
7169 (such as REF_CHECK, BN_DEBUG etc.).
7170 [Bodo Moeller]
7171
7172 *) New openssl application 'rsautl'. This utility can be
7173 used for low level RSA operations. DER public key
7174 BIO/fp routines also added.
7175 [Steve Henson]
7176
7177 *) New Configure entry and patches for compiling on QNX 4.
7178 [Andreas Schneider <andreas@ds3.etech.fh-hamburg.de>]
7179
7180 *) A demo state-machine implementation was sponsored by
7181 Nuron (http://www.nuron.com/) and is now available in
7182 demos/state_machine.
7183 [Ben Laurie]
7184
7185 *) New options added to the 'dgst' utility for signature
7186 generation and verification.
7187 [Steve Henson]
7188
7189 *) Unrecognized PKCS#7 content types are now handled via a
7190 catch all ASN1_TYPE structure. This allows unsupported
7191 types to be stored as a "blob" and an application can
7192 encode and decode it manually.
7193 [Steve Henson]
7194
7195 *) Fix various signed/unsigned issues to make a_strex.c
7196 compile under VC++.
7197 [Oscar Jacobsson <oscar.jacobsson@celocom.com>]
7198
7199 *) ASN1 fixes. i2d_ASN1_OBJECT was not returning the correct
7200 length if passed a buffer. ASN1_INTEGER_to_BN failed
7201 if passed a NULL BN and its argument was negative.
7202 [Steve Henson, pointed out by Sven Heiberg <sven@tartu.cyber.ee>]
7203
7204 *) Modification to PKCS#7 encoding routines to output definite
7205 length encoding. Since currently the whole structures are in
7206 memory there's not real point in using indefinite length
7207 constructed encoding. However if OpenSSL is compiled with
7208 the flag PKCS7_INDEFINITE_ENCODING the old form is used.
7209 [Steve Henson]
7210
7211 *) Added BIO_vprintf() and BIO_vsnprintf().
7212 [Richard Levitte]
7213
7214 *) Added more prefixes to parse for in the the strings written
7215 through a logging bio, to cover all the levels that are available
7216 through syslog. The prefixes are now:
7217
7218 PANIC, EMERG, EMR => LOG_EMERG
7219 ALERT, ALR => LOG_ALERT
7220 CRIT, CRI => LOG_CRIT
7221 ERROR, ERR => LOG_ERR
7222 WARNING, WARN, WAR => LOG_WARNING
7223 NOTICE, NOTE, NOT => LOG_NOTICE
7224 INFO, INF => LOG_INFO
7225 DEBUG, DBG => LOG_DEBUG
7226
7227 and as before, if none of those prefixes are present at the
7228 beginning of the string, LOG_ERR is chosen.
7229
7230 On Win32, the LOG_* levels are mapped according to this:
7231
7232 LOG_EMERG, LOG_ALERT, LOG_CRIT, LOG_ERR => EVENTLOG_ERROR_TYPE
7233 LOG_WARNING => EVENTLOG_WARNING_TYPE
7234 LOG_NOTICE, LOG_INFO, LOG_DEBUG => EVENTLOG_INFORMATION_TYPE
7235
7236 [Richard Levitte]
7237
7238 *) Made it possible to reconfigure with just the configuration
7239 argument "reconf" or "reconfigure". The command line arguments
7240 are stored in Makefile.ssl in the variable CONFIGURE_ARGS,
7241 and are retrieved from there when reconfiguring.
7242 [Richard Levitte]
7243
7244 *) MD4 implemented.
7245 [Assar Westerlund <assar@sics.se>, Richard Levitte]
7246
7247 *) Add the arguments -CAfile and -CApath to the pkcs12 utility.
7248 [Richard Levitte]
7249
7250 *) The obj_dat.pl script was messing up the sorting of object
7251 names. The reason was that it compared the quoted version
7252 of strings as a result "OCSP" > "OCSP Signing" because
7253 " > SPACE. Changed script to store unquoted versions of
7254 names and add quotes on output. It was also omitting some
7255 names from the lookup table if they were given a default
7256 value (that is if SN is missing it is given the same
7257 value as LN and vice versa), these are now added on the
7258 grounds that if an object has a name we should be able to
7259 look it up. Finally added warning output when duplicate
7260 short or long names are found.
7261 [Steve Henson]
7262
7263 *) Changes needed for Tandem NSK.
7264 [Scott Uroff <scott@xypro.com>]
7265
7266 *) Fix SSL 2.0 rollback checking: Due to an off-by-one error in
7267 RSA_padding_check_SSLv23(), special padding was never detected
7268 and thus the SSL 3.0/TLS 1.0 countermeasure against protocol
7269 version rollback attacks was not effective.
7270
7271 In s23_clnt.c, don't use special rollback-attack detection padding
7272 (RSA_SSLV23_PADDING) if SSL 2.0 is the only protocol enabled in the
7273 client; similarly, in s23_srvr.c, don't do the rollback check if
7274 SSL 2.0 is the only protocol enabled in the server.
7275 [Bodo Moeller]
7276
7277 *) Make it possible to get hexdumps of unprintable data with 'openssl
7278 asn1parse'. By implication, the functions ASN1_parse_dump() and
7279 BIO_dump_indent() are added.
7280 [Richard Levitte]
7281
7282 *) New functions ASN1_STRING_print_ex() and X509_NAME_print_ex()
7283 these print out strings and name structures based on various
7284 flags including RFC2253 support and proper handling of
7285 multibyte characters. Added options to the 'x509' utility
7286 to allow the various flags to be set.
7287 [Steve Henson]
7288
7289 *) Various fixes to use ASN1_TIME instead of ASN1_UTCTIME.
7290 Also change the functions X509_cmp_current_time() and
7291 X509_gmtime_adj() work with an ASN1_TIME structure,
7292 this will enable certificates using GeneralizedTime in validity
7293 dates to be checked.
7294 [Steve Henson]
7295
7296 *) Make the NEG_PUBKEY_BUG code (which tolerates invalid
7297 negative public key encodings) on by default,
7298 NO_NEG_PUBKEY_BUG can be set to disable it.
7299 [Steve Henson]
7300
7301 *) New function c2i_ASN1_OBJECT() which acts on ASN1_OBJECT
7302 content octets. An i2c_ASN1_OBJECT is unnecessary because
7303 the encoding can be trivially obtained from the structure.
7304 [Steve Henson]
7305
7306 *) crypto/err.c locking bugfix: Use write locks (CRYPTO_w_[un]lock),
7307 not read locks (CRYPTO_r_[un]lock).
7308 [Bodo Moeller]
7309
7310 *) A first attempt at creating official support for shared
7311 libraries through configuration. I've kept it so the
7312 default is static libraries only, and the OpenSSL programs
7313 are always statically linked for now, but there are
7314 preparations for dynamic linking in place.
7315 This has been tested on Linux and Tru64.
7316 [Richard Levitte]
7317
7318 *) Randomness polling function for Win9x, as described in:
7319 Peter Gutmann, Software Generation of Practically Strong
7320 Random Numbers.
7321 [Ulf Möller]
7322
7323 *) Fix so PRNG is seeded in req if using an already existing
7324 DSA key.
7325 [Steve Henson]
7326
7327 *) New options to smime application. -inform and -outform
7328 allow alternative formats for the S/MIME message including
7329 PEM and DER. The -content option allows the content to be
7330 specified separately. This should allow things like Netscape
7331 form signing output easier to verify.
7332 [Steve Henson]
7333
7334 *) Fix the ASN1 encoding of tags using the 'long form'.
7335 [Steve Henson]
7336
7337 *) New ASN1 functions, i2c_* and c2i_* for INTEGER and BIT
7338 STRING types. These convert content octets to and from the
7339 underlying type. The actual tag and length octets are
7340 already assumed to have been read in and checked. These
7341 are needed because all other string types have virtually
7342 identical handling apart from the tag. By having versions
7343 of the ASN1 functions that just operate on content octets
7344 IMPLICIT tagging can be handled properly. It also allows
7345 the ASN1_ENUMERATED code to be cut down because ASN1_ENUMERATED
7346 and ASN1_INTEGER are identical apart from the tag.
7347 [Steve Henson]
7348
7349 *) Change the handling of OID objects as follows:
7350
7351 - New object identifiers are inserted in objects.txt, following
7352 the syntax given in objects.README.
7353 - objects.pl is used to process obj_mac.num and create a new
7354 obj_mac.h.
7355 - obj_dat.pl is used to create a new obj_dat.h, using the data in
7356 obj_mac.h.
7357
7358 This is currently kind of a hack, and the perl code in objects.pl
7359 isn't very elegant, but it works as I intended. The simplest way
7360 to check that it worked correctly is to look in obj_dat.h and
7361 check the array nid_objs and make sure the objects haven't moved
7362 around (this is important!). Additions are OK, as well as
7363 consistent name changes.
7364 [Richard Levitte]
7365
7366 *) Add BSD-style MD5-based passwords to 'openssl passwd' (option '-1').
7367 [Bodo Moeller]
7368
7369 *) Addition of the command line parameter '-rand file' to 'openssl req'.
7370 The given file adds to whatever has already been seeded into the
7371 random pool through the RANDFILE configuration file option or
7372 environment variable, or the default random state file.
7373 [Richard Levitte]
7374
7375 *) mkstack.pl now sorts each macro group into lexical order.
7376 Previously the output order depended on the order the files
7377 appeared in the directory, resulting in needless rewriting
7378 of safestack.h .
7379 [Steve Henson]
7380
7381 *) Patches to make OpenSSL compile under Win32 again. Mostly
7382 work arounds for the VC++ problem that it treats func() as
7383 func(void). Also stripped out the parts of mkdef.pl that
7384 added extra typesafe functions: these no longer exist.
7385 [Steve Henson]
7386
7387 *) Reorganisation of the stack code. The macros are now all
7388 collected in safestack.h . Each macro is defined in terms of
7389 a "stack macro" of the form SKM_<name>(type, a, b). The
7390 DEBUG_SAFESTACK is now handled in terms of function casts,
7391 this has the advantage of retaining type safety without the
7392 use of additional functions. If DEBUG_SAFESTACK is not defined
7393 then the non typesafe macros are used instead. Also modified the
7394 mkstack.pl script to handle the new form. Needs testing to see
7395 if which (if any) compilers it chokes and maybe make DEBUG_SAFESTACK
7396 the default if no major problems. Similar behaviour for ASN1_SET_OF
7397 and PKCS12_STACK_OF.
7398 [Steve Henson]
7399
7400 *) When some versions of IIS use the 'NET' form of private key the
7401 key derivation algorithm is different. Normally MD5(password) is
7402 used as a 128 bit RC4 key. In the modified case
7403 MD5(MD5(password) + "SGCKEYSALT") is used insted. Added some
7404 new functions i2d_RSA_NET(), d2i_RSA_NET() etc which are the same
7405 as the old Netscape_RSA functions except they have an additional
7406 'sgckey' parameter which uses the modified algorithm. Also added
7407 an -sgckey command line option to the rsa utility. Thanks to
7408 Adrian Peck <bertie@ncipher.com> for posting details of the modified
7409 algorithm to openssl-dev.
7410 [Steve Henson]
7411
7412 *) The evp_local.h macros were using 'c.##kname' which resulted in
7413 invalid expansion on some systems (SCO 5.0.5 for example).
7414 Corrected to 'c.kname'.
7415 [Phillip Porch <root@theporch.com>]
7416
7417 *) New X509_get1_email() and X509_REQ_get1_email() functions that return
7418 a STACK of email addresses from a certificate or request, these look
7419 in the subject name and the subject alternative name extensions and
7420 omit any duplicate addresses.
7421 [Steve Henson]
7422
7423 *) Re-implement BN_mod_exp2_mont using independent (and larger) windows.
7424 This makes DSA verification about 2 % faster.
7425 [Bodo Moeller]
7426
7427 *) Increase maximum window size in BN_mod_exp_... to 6 bits instead of 5
7428 (meaning that now 2^5 values will be precomputed, which is only 4 KB
7429 plus overhead for 1024 bit moduli).
7430 This makes exponentiations about 0.5 % faster for 1024 bit
7431 exponents (as measured by "openssl speed rsa2048").
7432 [Bodo Moeller]
7433
7434 *) Rename memory handling macros to avoid conflicts with other
7435 software:
7436 Malloc => OPENSSL_malloc
7437 Malloc_locked => OPENSSL_malloc_locked
7438 Realloc => OPENSSL_realloc
7439 Free => OPENSSL_free
7440 [Richard Levitte]
7441
7442 *) New function BN_mod_exp_mont_word for small bases (roughly 15%
7443 faster than BN_mod_exp_mont, i.e. 7% for a full DH exchange).
7444 [Bodo Moeller]
7445
7446 *) CygWin32 support.
7447 [John Jarvie <jjarvie@newsguy.com>]
7448
7449 *) The type-safe stack code has been rejigged. It is now only compiled
7450 in when OpenSSL is configured with the DEBUG_SAFESTACK option and
7451 by default all type-specific stack functions are "#define"d back to
7452 standard stack functions. This results in more streamlined output
7453 but retains the type-safety checking possibilities of the original
7454 approach.
7455 [Geoff Thorpe]
7456
7457 *) The STACK code has been cleaned up, and certain type declarations
7458 that didn't make a lot of sense have been brought in line. This has
7459 also involved a cleanup of sorts in safestack.h to more correctly
7460 map type-safe stack functions onto their plain stack counterparts.
7461 This work has also resulted in a variety of "const"ifications of
7462 lots of the code, especially "_cmp" operations which should normally
7463 be prototyped with "const" parameters anyway.
7464 [Geoff Thorpe]
7465
7466 *) When generating bytes for the first time in md_rand.c, 'stir the pool'
7467 by seeding with STATE_SIZE dummy bytes (with zero entropy count).
7468 (The PRNG state consists of two parts, the large pool 'state' and 'md',
7469 where all of 'md' is used each time the PRNG is used, but 'state'
7470 is used only indexed by a cyclic counter. As entropy may not be
7471 well distributed from the beginning, 'md' is important as a
7472 chaining variable. However, the output function chains only half
7473 of 'md', i.e. 80 bits. ssleay_rand_add, on the other hand, chains
7474 all of 'md', and seeding with STATE_SIZE dummy bytes will result
7475 in all of 'state' being rewritten, with the new values depending
7476 on virtually all of 'md'. This overcomes the 80 bit limitation.)
7477 [Bodo Moeller]
7478
7479 *) In ssl/s2_clnt.c and ssl/s3_clnt.c, call ERR_clear_error() when
7480 the handshake is continued after ssl_verify_cert_chain();
7481 otherwise, if SSL_VERIFY_NONE is set, remaining error codes
7482 can lead to 'unexplainable' connection aborts later.
7483 [Bodo Moeller; problem tracked down by Lutz Jaenicke]
7484
7485 *) Major EVP API cipher revision.
7486 Add hooks for extra EVP features. This allows various cipher
7487 parameters to be set in the EVP interface. Support added for variable
7488 key length ciphers via the EVP_CIPHER_CTX_set_key_length() function and
7489 setting of RC2 and RC5 parameters.
7490
7491 Modify EVP_OpenInit() and EVP_SealInit() to cope with variable key length
7492 ciphers.
7493
7494 Remove lots of duplicated code from the EVP library. For example *every*
7495 cipher init() function handles the 'iv' in the same way according to the
7496 cipher mode. They also all do nothing if the 'key' parameter is NULL and
7497 for CFB and OFB modes they zero ctx->num.
7498
7499 New functionality allows removal of S/MIME code RC2 hack.
7500
7501 Most of the routines have the same form and so can be declared in terms
7502 of macros.
7503
7504 By shifting this to the top level EVP_CipherInit() it can be removed from
7505 all individual ciphers. If the cipher wants to handle IVs or keys
7506 differently it can set the EVP_CIPH_CUSTOM_IV or EVP_CIPH_ALWAYS_CALL_INIT
7507 flags.
7508
7509 Change lots of functions like EVP_EncryptUpdate() to now return a
7510 value: although software versions of the algorithms cannot fail
7511 any installed hardware versions can.
7512 [Steve Henson]
7513
7514 *) Implement SSL_OP_TLS_ROLLBACK_BUG: In ssl3_get_client_key_exchange, if
7515 this option is set, tolerate broken clients that send the negotiated
7516 protocol version number instead of the requested protocol version
7517 number.
7518 [Bodo Moeller]
7519
7520 *) Call dh_tmp_cb (set by ..._TMP_DH_CB) with correct 'is_export' flag;
7521 i.e. non-zero for export ciphersuites, zero otherwise.
7522 Previous versions had this flag inverted, inconsistent with
7523 rsa_tmp_cb (..._TMP_RSA_CB).
7524 [Bodo Moeller; problem reported by Amit Chopra]
7525
7526 *) Add missing DSA library text string. Work around for some IIS
7527 key files with invalid SEQUENCE encoding.
7528 [Steve Henson]
7529
7530 *) Add a document (doc/standards.txt) that list all kinds of standards
7531 and so on that are implemented in OpenSSL.
7532 [Richard Levitte]
7533
7534 *) Enhance c_rehash script. Old version would mishandle certificates
7535 with the same subject name hash and wouldn't handle CRLs at all.
7536 Added -fingerprint option to crl utility, to support new c_rehash
7537 features.
7538 [Steve Henson]
7539
7540 *) Eliminate non-ANSI declarations in crypto.h and stack.h.
7541 [Ulf Möller]
7542
7543 *) Fix for SSL server purpose checking. Server checking was
7544 rejecting certificates which had extended key usage present
7545 but no ssl client purpose.
7546 [Steve Henson, reported by Rene Grosser <grosser@hisolutions.com>]
7547
7548 *) Make PKCS#12 code work with no password. The PKCS#12 spec
7549 is a little unclear about how a blank password is handled.
7550 Since the password in encoded as a BMPString with terminating
7551 double NULL a zero length password would end up as just the
7552 double NULL. However no password at all is different and is
7553 handled differently in the PKCS#12 key generation code. NS
7554 treats a blank password as zero length. MSIE treats it as no
7555 password on export: but it will try both on import. We now do
7556 the same: PKCS12_parse() tries zero length and no password if
7557 the password is set to "" or NULL (NULL is now a valid password:
7558 it wasn't before) as does the pkcs12 application.
7559 [Steve Henson]
7560
7561 *) Bugfixes in apps/x509.c: Avoid a memory leak; and don't use
7562 perror when PEM_read_bio_X509_REQ fails, the error message must
7563 be obtained from the error queue.
7564 [Bodo Moeller]
7565
7566 *) Avoid 'thread_hash' memory leak in crypto/err/err.c by freeing
7567 it in ERR_remove_state if appropriate, and change ERR_get_state
7568 accordingly to avoid race conditions (this is necessary because
7569 thread_hash is no longer constant once set).
7570 [Bodo Moeller]
7571
7572 *) Bugfix for linux-elf makefile.one.
7573 [Ulf Möller]
7574
7575 *) RSA_get_default_method() will now cause a default
7576 RSA_METHOD to be chosen if one doesn't exist already.
7577 Previously this was only set during a call to RSA_new()
7578 or RSA_new_method(NULL) meaning it was possible for
7579 RSA_get_default_method() to return NULL.
7580 [Geoff Thorpe]
7581
7582 *) Added native name translation to the existing DSO code
7583 that will convert (if the flag to do so is set) filenames
7584 that are sufficiently small and have no path information
7585 into a canonical native form. Eg. "blah" converted to
7586 "libblah.so" or "blah.dll" etc.
7587 [Geoff Thorpe]
7588
7589 *) New function ERR_error_string_n(e, buf, len) which is like
7590 ERR_error_string(e, buf), but writes at most 'len' bytes
7591 including the 0 terminator. For ERR_error_string_n, 'buf'
7592 may not be NULL.
7593 [Damien Miller <djm@mindrot.org>, Bodo Moeller]
7594
7595 *) CONF library reworked to become more general. A new CONF
7596 configuration file reader "class" is implemented as well as a
7597 new functions (NCONF_*, for "New CONF") to handle it. The now
7598 old CONF_* functions are still there, but are reimplemented to
7599 work in terms of the new functions. Also, a set of functions
7600 to handle the internal storage of the configuration data is
7601 provided to make it easier to write new configuration file
7602 reader "classes" (I can definitely see something reading a
7603 configuration file in XML format, for example), called _CONF_*,
7604 or "the configuration storage API"...
7605
7606 The new configuration file reading functions are:
7607
7608 NCONF_new, NCONF_free, NCONF_load, NCONF_load_fp, NCONF_load_bio,
7609 NCONF_get_section, NCONF_get_string, NCONF_get_numbre
7610
7611 NCONF_default, NCONF_WIN32
7612
7613 NCONF_dump_fp, NCONF_dump_bio
7614
7615 NCONF_default and NCONF_WIN32 are method (or "class") choosers,
7616 NCONF_new creates a new CONF object. This works in the same way
7617 as other interfaces in OpenSSL, like the BIO interface.
7618 NCONF_dump_* dump the internal storage of the configuration file,
7619 which is useful for debugging. All other functions take the same
7620 arguments as the old CONF_* functions wth the exception of the
7621 first that must be a `CONF *' instead of a `LHASH *'.
7622
7623 To make it easer to use the new classes with the old CONF_* functions,
7624 the function CONF_set_default_method is provided.
7625 [Richard Levitte]
7626
7627 *) Add '-tls1' option to 'openssl ciphers', which was already
7628 mentioned in the documentation but had not been implemented.
7629 (This option is not yet really useful because even the additional
7630 experimental TLS 1.0 ciphers are currently treated as SSL 3.0 ciphers.)
7631 [Bodo Moeller]
7632
7633 *) Initial DSO code added into libcrypto for letting OpenSSL (and
7634 OpenSSL-based applications) load shared libraries and bind to
7635 them in a portable way.
7636 [Geoff Thorpe, with contributions from Richard Levitte]
7637
7638 Changes between 0.9.5 and 0.9.5a [1 Apr 2000]
7639
7640 *) Make sure _lrotl and _lrotr are only used with MSVC.
7641
7642 *) Use lock CRYPTO_LOCK_RAND correctly in ssleay_rand_status
7643 (the default implementation of RAND_status).
7644
7645 *) Rename openssl x509 option '-crlext', which was added in 0.9.5,
7646 to '-clrext' (= clear extensions), as intended and documented.
7647 [Bodo Moeller; inconsistency pointed out by Michael Attili
7648 <attili@amaxo.com>]
7649
7650 *) Fix for HMAC. It wasn't zeroing the rest of the block if the key length
7651 was larger than the MD block size.
7652 [Steve Henson, pointed out by Yost William <YostW@tce.com>]
7653
7654 *) Modernise PKCS12_parse() so it uses STACK_OF(X509) for its ca argument
7655 fix a leak when the ca argument was passed as NULL. Stop X509_PUBKEY_set()
7656 using the passed key: if the passed key was a private key the result
7657 of X509_print(), for example, would be to print out all the private key
7658 components.
7659 [Steve Henson]
7660
7661 *) des_quad_cksum() byte order bug fix.
7662 [Ulf Möller, using the problem description in krb4-0.9.7, where
7663 the solution is attributed to Derrick J Brashear <shadow@DEMENTIA.ORG>]
7664
7665 *) Fix so V_ASN1_APP_CHOOSE works again: however its use is strongly
7666 discouraged.
7667 [Steve Henson, pointed out by Brian Korver <briank@cs.stanford.edu>]
7668
7669 *) For easily testing in shell scripts whether some command
7670 'openssl XXX' exists, the new pseudo-command 'openssl no-XXX'
7671 returns with exit code 0 iff no command of the given name is available.
7672 'no-XXX' is printed in this case, 'XXX' otherwise. In both cases,
7673 the output goes to stdout and nothing is printed to stderr.
7674 Additional arguments are always ignored.
7675
7676 Since for each cipher there is a command of the same name,
7677 the 'no-cipher' compilation switches can be tested this way.
7678
7679 ('openssl no-XXX' is not able to detect pseudo-commands such
7680 as 'quit', 'list-XXX-commands', or 'no-XXX' itself.)
7681 [Bodo Moeller]
7682
7683 *) Update test suite so that 'make test' succeeds in 'no-rsa' configuration.
7684 [Bodo Moeller]
7685
7686 *) For SSL_[CTX_]set_tmp_dh, don't create a DH key if SSL_OP_SINGLE_DH_USE
7687 is set; it will be thrown away anyway because each handshake creates
7688 its own key.
7689 ssl_cert_dup, which is used by SSL_new, now copies DH keys in addition
7690 to parameters -- in previous versions (since OpenSSL 0.9.3) the
7691 'default key' from SSL_CTX_set_tmp_dh would always be lost, meanining
7692 you effectivly got SSL_OP_SINGLE_DH_USE when using this macro.
7693 [Bodo Moeller]
7694
7695 *) New s_client option -ign_eof: EOF at stdin is ignored, and
7696 'Q' and 'R' lose their special meanings (quit/renegotiate).
7697 This is part of what -quiet does; unlike -quiet, -ign_eof
7698 does not suppress any output.
7699 [Richard Levitte]
7700
7701 *) Add compatibility options to the purpose and trust code. The
7702 purpose X509_PURPOSE_ANY is "any purpose" which automatically
7703 accepts a certificate or CA, this was the previous behaviour,
7704 with all the associated security issues.
7705
7706 X509_TRUST_COMPAT is the old trust behaviour: only and
7707 automatically trust self signed roots in certificate store. A
7708 new trust setting X509_TRUST_DEFAULT is used to specify that
7709 a purpose has no associated trust setting and it should instead
7710 use the value in the default purpose.
7711 [Steve Henson]
7712
7713 *) Fix the PKCS#8 DSA private key code so it decodes keys again
7714 and fix a memory leak.
7715 [Steve Henson]
7716
7717 *) In util/mkerr.pl (which implements 'make errors'), preserve
7718 reason strings from the previous version of the .c file, as
7719 the default to have only downcase letters (and digits) in
7720 automatically generated reasons codes is not always appropriate.
7721 [Bodo Moeller]
7722
7723 *) In ERR_load_ERR_strings(), build an ERR_LIB_SYS error reason table
7724 using strerror. Previously, ERR_reason_error_string() returned
7725 library names as reason strings for SYSerr; but SYSerr is a special
7726 case where small numbers are errno values, not library numbers.
7727 [Bodo Moeller]
7728
7729 *) Add '-dsaparam' option to 'openssl dhparam' application. This
7730 converts DSA parameters into DH parameters. (When creating parameters,
7731 DSA_generate_parameters is used.)
7732 [Bodo Moeller]
7733
7734 *) Include 'length' (recommended exponent length) in C code generated
7735 by 'openssl dhparam -C'.
7736 [Bodo Moeller]
7737
7738 *) The second argument to set_label in perlasm was already being used
7739 so couldn't be used as a "file scope" flag. Moved to third argument
7740 which was free.
7741 [Steve Henson]
7742
7743 *) In PEM_ASN1_write_bio and some other functions, use RAND_pseudo_bytes
7744 instead of RAND_bytes for encryption IVs and salts.
7745 [Bodo Moeller]
7746
7747 *) Include RAND_status() into RAND_METHOD instead of implementing
7748 it only for md_rand.c Otherwise replacing the PRNG by calling
7749 RAND_set_rand_method would be impossible.
7750 [Bodo Moeller]
7751
7752 *) Don't let DSA_generate_key() enter an infinite loop if the random
7753 number generation fails.
7754 [Bodo Moeller]
7755
7756 *) New 'rand' application for creating pseudo-random output.
7757 [Bodo Moeller]
7758
7759 *) Added configuration support for Linux/IA64
7760 [Rolf Haberrecker <rolf@suse.de>]
7761
7762 *) Assembler module support for Mingw32.
7763 [Ulf Möller]
7764
7765 *) Shared library support for HPUX (in shlib/).
7766 [Lutz Jaenicke <Lutz.Jaenicke@aet.TU-Cottbus.DE> and Anonymous]
7767
7768 *) Shared library support for Solaris gcc.
7769 [Lutz Behnke <behnke@trustcenter.de>]
7770
7771 Changes between 0.9.4 and 0.9.5 [28 Feb 2000]
7772
7773 *) PKCS7_encrypt() was adding text MIME headers twice because they
7774 were added manually and by SMIME_crlf_copy().
7775 [Steve Henson]
7776
7777 *) In bntest.c don't call BN_rand with zero bits argument.
7778 [Steve Henson, pointed out by Andrew W. Gray <agray@iconsinc.com>]
7779
7780 *) BN_mul bugfix: In bn_mul_part_recursion() only the a>a[n] && b>b[n]
7781 case was implemented. This caused BN_div_recp() to fail occasionally.
7782 [Ulf Möller]
7783
7784 *) Add an optional second argument to the set_label() in the perl
7785 assembly language builder. If this argument exists and is set
7786 to 1 it signals that the assembler should use a symbol whose
7787 scope is the entire file, not just the current function. This
7788 is needed with MASM which uses the format label:: for this scope.
7789 [Steve Henson, pointed out by Peter Runestig <peter@runestig.com>]
7790
7791 *) Change the ASN1 types so they are typedefs by default. Before
7792 almost all types were #define'd to ASN1_STRING which was causing
7793 STACK_OF() problems: you couldn't declare STACK_OF(ASN1_UTF8STRING)
7794 for example.
7795 [Steve Henson]
7796
7797 *) Change names of new functions to the new get1/get0 naming
7798 convention: After 'get1', the caller owns a reference count
7799 and has to call ..._free; 'get0' returns a pointer to some
7800 data structure without incrementing reference counters.
7801 (Some of the existing 'get' functions increment a reference
7802 counter, some don't.)
7803 Similarly, 'set1' and 'add1' functions increase reference
7804 counters or duplicate objects.
7805 [Steve Henson]
7806
7807 *) Allow for the possibility of temp RSA key generation failure:
7808 the code used to assume it always worked and crashed on failure.
7809 [Steve Henson]
7810
7811 *) Fix potential buffer overrun problem in BIO_printf().
7812 [Ulf Möller, using public domain code by Patrick Powell; problem
7813 pointed out by David Sacerdote <das33@cornell.edu>]
7814
7815 *) Support EGD <http://www.lothar.com/tech/crypto/>. New functions
7816 RAND_egd() and RAND_status(). In the command line application,
7817 the EGD socket can be specified like a seed file using RANDFILE
7818 or -rand.
7819 [Ulf Möller]
7820
7821 *) Allow the string CERTIFICATE to be tolerated in PKCS#7 structures.
7822 Some CAs (e.g. Verisign) distribute certificates in this form.
7823 [Steve Henson]
7824
7825 *) Remove the SSL_ALLOW_ADH compile option and set the default cipher
7826 list to exclude them. This means that no special compilation option
7827 is needed to use anonymous DH: it just needs to be included in the
7828 cipher list.
7829 [Steve Henson]
7830
7831 *) Change the EVP_MD_CTX_type macro so its meaning consistent with
7832 EVP_MD_type. The old functionality is available in a new macro called
7833 EVP_MD_md(). Change code that uses it and update docs.
7834 [Steve Henson]
7835
7836 *) ..._ctrl functions now have corresponding ..._callback_ctrl functions
7837 where the 'void *' argument is replaced by a function pointer argument.
7838 Previously 'void *' was abused to point to functions, which works on
7839 many platforms, but is not correct. As these functions are usually
7840 called by macros defined in OpenSSL header files, most source code
7841 should work without changes.
7842 [Richard Levitte]
7843
7844 *) <openssl/opensslconf.h> (which is created by Configure) now contains
7845 sections with information on -D... compiler switches used for
7846 compiling the library so that applications can see them. To enable
7847 one of these sections, a pre-processor symbol OPENSSL_..._DEFINES
7848 must be defined. E.g.,
7849 #define OPENSSL_ALGORITHM_DEFINES
7850 #include <openssl/opensslconf.h>
7851 defines all pertinent NO_<algo> symbols, such as NO_IDEA, NO_RSA, etc.
7852 [Richard Levitte, Ulf and Bodo Möller]
7853
7854 *) Bugfix: Tolerate fragmentation and interleaving in the SSL 3/TLS
7855 record layer.
7856 [Bodo Moeller]
7857
7858 *) Change the 'other' type in certificate aux info to a STACK_OF
7859 X509_ALGOR. Although not an AlgorithmIdentifier as such it has
7860 the required ASN1 format: arbitrary types determined by an OID.
7861 [Steve Henson]
7862
7863 *) Add some PEM_write_X509_REQ_NEW() functions and a command line
7864 argument to 'req'. This is not because the function is newer or
7865 better than others it just uses the work 'NEW' in the certificate
7866 request header lines. Some software needs this.
7867 [Steve Henson]
7868
7869 *) Reorganise password command line arguments: now passwords can be
7870 obtained from various sources. Delete the PEM_cb function and make
7871 it the default behaviour: i.e. if the callback is NULL and the
7872 usrdata argument is not NULL interpret it as a null terminated pass
7873 phrase. If usrdata and the callback are NULL then the pass phrase
7874 is prompted for as usual.
7875 [Steve Henson]
7876
7877 *) Add support for the Compaq Atalla crypto accelerator. If it is installed,
7878 the support is automatically enabled. The resulting binaries will
7879 autodetect the card and use it if present.
7880 [Ben Laurie and Compaq Inc.]
7881
7882 *) Work around for Netscape hang bug. This sends certificate request
7883 and server done in one record. Since this is perfectly legal in the
7884 SSL/TLS protocol it isn't a "bug" option and is on by default. See
7885 the bugs/SSLv3 entry for more info.
7886 [Steve Henson]
7887
7888 *) HP-UX tune-up: new unified configs, HP C compiler bug workaround.
7889 [Andy Polyakov]
7890
7891 *) Add -rand argument to smime and pkcs12 applications and read/write
7892 of seed file.
7893 [Steve Henson]
7894
7895 *) New 'passwd' tool for crypt(3) and apr1 password hashes.
7896 [Bodo Moeller]
7897
7898 *) Add command line password options to the remaining applications.
7899 [Steve Henson]
7900
7901 *) Bug fix for BN_div_recp() for numerators with an even number of
7902 bits.
7903 [Ulf Möller]
7904
7905 *) More tests in bntest.c, and changed test_bn output.
7906 [Ulf Möller]
7907
7908 *) ./config recognizes MacOS X now.
7909 [Andy Polyakov]
7910
7911 *) Bug fix for BN_div() when the first words of num and divsor are
7912 equal (it gave wrong results if (rem=(n1-q*d0)&BN_MASK2) < d0).
7913 [Ulf Möller]
7914
7915 *) Add support for various broken PKCS#8 formats, and command line
7916 options to produce them.
7917 [Steve Henson]
7918
7919 *) New functions BN_CTX_start(), BN_CTX_get() and BT_CTX_end() to
7920 get temporary BIGNUMs from a BN_CTX.
7921 [Ulf Möller]
7922
7923 *) Correct return values in BN_mod_exp_mont() and BN_mod_exp2_mont()
7924 for p == 0.
7925 [Ulf Möller]
7926
7927 *) Change the SSLeay_add_all_*() functions to OpenSSL_add_all_*() and
7928 include a #define from the old name to the new. The original intent
7929 was that statically linked binaries could for example just call
7930 SSLeay_add_all_ciphers() to just add ciphers to the table and not
7931 link with digests. This never worked becayse SSLeay_add_all_digests()
7932 and SSLeay_add_all_ciphers() were in the same source file so calling
7933 one would link with the other. They are now in separate source files.
7934 [Steve Henson]
7935
7936 *) Add a new -notext option to 'ca' and a -pubkey option to 'spkac'.
7937 [Steve Henson]
7938
7939 *) Use a less unusual form of the Miller-Rabin primality test (it used
7940 a binary algorithm for exponentiation integrated into the Miller-Rabin
7941 loop, our standard modexp algorithms are faster).
7942 [Bodo Moeller]
7943
7944 *) Support for the EBCDIC character set completed.
7945 [Martin Kraemer <Martin.Kraemer@Mch.SNI.De>]
7946
7947 *) Source code cleanups: use const where appropriate, eliminate casts,
7948 use void * instead of char * in lhash.
7949 [Ulf Möller]
7950
7951 *) Bugfix: ssl3_send_server_key_exchange was not restartable
7952 (the state was not changed to SSL3_ST_SW_KEY_EXCH_B, and because of
7953 this the server could overwrite ephemeral keys that the client
7954 has already seen).
7955 [Bodo Moeller]
7956
7957 *) Turn DSA_is_prime into a macro that calls BN_is_prime,
7958 using 50 iterations of the Rabin-Miller test.
7959
7960 DSA_generate_parameters now uses BN_is_prime_fasttest (with 50
7961 iterations of the Rabin-Miller test as required by the appendix
7962 to FIPS PUB 186[-1]) instead of DSA_is_prime.
7963 As BN_is_prime_fasttest includes trial division, DSA parameter
7964 generation becomes much faster.
7965
7966 This implies a change for the callback functions in DSA_is_prime
7967 and DSA_generate_parameters: The callback function is called once
7968 for each positive witness in the Rabin-Miller test, not just
7969 occasionally in the inner loop; and the parameters to the
7970 callback function now provide an iteration count for the outer
7971 loop rather than for the current invocation of the inner loop.
7972 DSA_generate_parameters additionally can call the callback
7973 function with an 'iteration count' of -1, meaning that a
7974 candidate has passed the trial division test (when q is generated
7975 from an application-provided seed, trial division is skipped).
7976 [Bodo Moeller]
7977
7978 *) New function BN_is_prime_fasttest that optionally does trial
7979 division before starting the Rabin-Miller test and has
7980 an additional BN_CTX * argument (whereas BN_is_prime always
7981 has to allocate at least one BN_CTX).
7982 'callback(1, -1, cb_arg)' is called when a number has passed the
7983 trial division stage.
7984 [Bodo Moeller]
7985
7986 *) Fix for bug in CRL encoding. The validity dates weren't being handled
7987 as ASN1_TIME.
7988 [Steve Henson]
7989
7990 *) New -pkcs12 option to CA.pl script to write out a PKCS#12 file.
7991 [Steve Henson]
7992
7993 *) New function BN_pseudo_rand().
7994 [Ulf Möller]
7995
7996 *) Clean up BN_mod_mul_montgomery(): replace the broken (and unreadable)
7997 bignum version of BN_from_montgomery() with the working code from
7998 SSLeay 0.9.0 (the word based version is faster anyway), and clean up
7999 the comments.
8000 [Ulf Möller]
8001
8002 *) Avoid a race condition in s2_clnt.c (function get_server_hello) that
8003 made it impossible to use the same SSL_SESSION data structure in
8004 SSL2 clients in multiple threads.
8005 [Bodo Moeller]
8006
8007 *) The return value of RAND_load_file() no longer counts bytes obtained
8008 by stat(). RAND_load_file(..., -1) is new and uses the complete file
8009 to seed the PRNG (previously an explicit byte count was required).
8010 [Ulf Möller, Bodo Möller]
8011
8012 *) Clean up CRYPTO_EX_DATA functions, some of these didn't have prototypes
8013 used (char *) instead of (void *) and had casts all over the place.
8014 [Steve Henson]
8015
8016 *) Make BN_generate_prime() return NULL on error if ret!=NULL.
8017 [Ulf Möller]
8018
8019 *) Retain source code compatibility for BN_prime_checks macro:
8020 BN_is_prime(..., BN_prime_checks, ...) now uses
8021 BN_prime_checks_for_size to determine the appropriate number of
8022 Rabin-Miller iterations.
8023 [Ulf Möller]
8024
8025 *) Diffie-Hellman uses "safe" primes: DH_check() return code renamed to
8026 DH_CHECK_P_NOT_SAFE_PRIME.
8027 (Check if this is true? OpenPGP calls them "strong".)
8028 [Ulf Möller]
8029
8030 *) Merge the functionality of "dh" and "gendh" programs into a new program
8031 "dhparam". The old programs are retained for now but will handle DH keys
8032 (instead of parameters) in future.
8033 [Steve Henson]
8034
8035 *) Make the ciphers, s_server and s_client programs check the return values
8036 when a new cipher list is set.
8037 [Steve Henson]
8038
8039 *) Enhance the SSL/TLS cipher mechanism to correctly handle the TLS 56bit
8040 ciphers. Before when the 56bit ciphers were enabled the sorting was
8041 wrong.
8042
8043 The syntax for the cipher sorting has been extended to support sorting by
8044 cipher-strength (using the strength_bits hard coded in the tables).
8045 The new command is "@STRENGTH" (see also doc/apps/ciphers.pod).
8046
8047 Fix a bug in the cipher-command parser: when supplying a cipher command
8048 string with an "undefined" symbol (neither command nor alphanumeric
8049 [A-Za-z0-9], ssl_set_cipher_list used to hang in an endless loop. Now
8050 an error is flagged.
8051
8052 Due to the strength-sorting extension, the code of the
8053 ssl_create_cipher_list() function was completely rearranged. I hope that
8054 the readability was also increased :-)
8055 [Lutz Jaenicke <Lutz.Jaenicke@aet.TU-Cottbus.DE>]
8056
8057 *) Minor change to 'x509' utility. The -CAcreateserial option now uses 1
8058 for the first serial number and places 2 in the serial number file. This
8059 avoids problems when the root CA is created with serial number zero and
8060 the first user certificate has the same issuer name and serial number
8061 as the root CA.
8062 [Steve Henson]
8063
8064 *) Fixes to X509_ATTRIBUTE utilities, change the 'req' program so it uses
8065 the new code. Add documentation for this stuff.
8066 [Steve Henson]
8067
8068 *) Changes to X509_ATTRIBUTE utilities. These have been renamed from
8069 X509_*() to X509at_*() on the grounds that they don't handle X509
8070 structures and behave in an analagous way to the X509v3 functions:
8071 they shouldn't be called directly but wrapper functions should be used
8072 instead.
8073
8074 So we also now have some wrapper functions that call the X509at functions
8075 when passed certificate requests. (TO DO: similar things can be done with
8076 PKCS#7 signed and unsigned attributes, PKCS#12 attributes and a few other
8077 things. Some of these need some d2i or i2d and print functionality
8078 because they handle more complex structures.)
8079 [Steve Henson]
8080
8081 *) Add missing #ifndefs that caused missing symbols when building libssl
8082 as a shared library without RSA. Use #ifndef NO_SSL2 instead of
8083 NO_RSA in ssl/s2*.c.
8084 [Kris Kennaway <kris@hub.freebsd.org>, modified by Ulf Möller]
8085
8086 *) Precautions against using the PRNG uninitialized: RAND_bytes() now
8087 has a return value which indicates the quality of the random data
8088 (1 = ok, 0 = not seeded). Also an error is recorded on the thread's
8089 error queue. New function RAND_pseudo_bytes() generates output that is
8090 guaranteed to be unique but not unpredictable. RAND_add is like
8091 RAND_seed, but takes an extra argument for an entropy estimate
8092 (RAND_seed always assumes full entropy).
8093 [Ulf Möller]
8094
8095 *) Do more iterations of Rabin-Miller probable prime test (specifically,
8096 3 for 1024-bit primes, 6 for 512-bit primes, 12 for 256-bit primes
8097 instead of only 2 for all lengths; see BN_prime_checks_for_size definition
8098 in crypto/bn/bn_prime.c for the complete table). This guarantees a
8099 false-positive rate of at most 2^-80 for random input.
8100 [Bodo Moeller]
8101
8102 *) Rewrite ssl3_read_n (ssl/s3_pkt.c) avoiding a couple of bugs.
8103 [Bodo Moeller]
8104
8105 *) New function X509_CTX_rget_chain() (renamed to X509_CTX_get1_chain
8106 in the 0.9.5 release), this returns the chain
8107 from an X509_CTX structure with a dup of the stack and all
8108 the X509 reference counts upped: so the stack will exist
8109 after X509_CTX_cleanup() has been called. Modify pkcs12.c
8110 to use this.
8111
8112 Also make SSL_SESSION_print() print out the verify return
8113 code.
8114 [Steve Henson]
8115
8116 *) Add manpage for the pkcs12 command. Also change the default
8117 behaviour so MAC iteration counts are used unless the new
8118 -nomaciter option is used. This improves file security and
8119 only older versions of MSIE (4.0 for example) need it.
8120 [Steve Henson]
8121
8122 *) Honor the no-xxx Configure options when creating .DEF files.
8123 [Ulf Möller]
8124
8125 *) Add PKCS#10 attributes to field table: challengePassword,
8126 unstructuredName and unstructuredAddress. These are taken from
8127 draft PKCS#9 v2.0 but are compatible with v1.2 provided no
8128 international characters are used.
8129
8130 More changes to X509_ATTRIBUTE code: allow the setting of types
8131 based on strings. Remove the 'loc' parameter when adding
8132 attributes because these will be a SET OF encoding which is sorted
8133 in ASN1 order.
8134 [Steve Henson]
8135
8136 *) Initial changes to the 'req' utility to allow request generation
8137 automation. This will allow an application to just generate a template
8138 file containing all the field values and have req construct the
8139 request.
8140
8141 Initial support for X509_ATTRIBUTE handling. Stacks of these are
8142 used all over the place including certificate requests and PKCS#7
8143 structures. They are currently handled manually where necessary with
8144 some primitive wrappers for PKCS#7. The new functions behave in a
8145 manner analogous to the X509 extension functions: they allow
8146 attributes to be looked up by NID and added.
8147
8148 Later something similar to the X509V3 code would be desirable to
8149 automatically handle the encoding, decoding and printing of the
8150 more complex types. The string types like challengePassword can
8151 be handled by the string table functions.
8152
8153 Also modified the multi byte string table handling. Now there is
8154 a 'global mask' which masks out certain types. The table itself
8155 can use the flag STABLE_NO_MASK to ignore the mask setting: this
8156 is useful when for example there is only one permissible type
8157 (as in countryName) and using the mask might result in no valid
8158 types at all.
8159 [Steve Henson]
8160
8161 *) Clean up 'Finished' handling, and add functions SSL_get_finished and
8162 SSL_get_peer_finished to allow applications to obtain the latest
8163 Finished messages sent to the peer or expected from the peer,
8164 respectively. (SSL_get_peer_finished is usually the Finished message
8165 actually received from the peer, otherwise the protocol will be aborted.)
8166
8167 As the Finished message are message digests of the complete handshake
8168 (with a total of 192 bits for TLS 1.0 and more for SSL 3.0), they can
8169 be used for external authentication procedures when the authentication
8170 provided by SSL/TLS is not desired or is not enough.
8171 [Bodo Moeller]
8172
8173 *) Enhanced support for Alpha Linux is added. Now ./config checks if
8174 the host supports BWX extension and if Compaq C is present on the
8175 $PATH. Just exploiting of the BWX extension results in 20-30%
8176 performance kick for some algorithms, e.g. DES and RC4 to mention
8177 a couple. Compaq C in turn generates ~20% faster code for MD5 and
8178 SHA1.
8179 [Andy Polyakov]
8180
8181 *) Add support for MS "fast SGC". This is arguably a violation of the
8182 SSL3/TLS protocol. Netscape SGC does two handshakes: the first with
8183 weak crypto and after checking the certificate is SGC a second one
8184 with strong crypto. MS SGC stops the first handshake after receiving
8185 the server certificate message and sends a second client hello. Since
8186 a server will typically do all the time consuming operations before
8187 expecting any further messages from the client (server key exchange
8188 is the most expensive) there is little difference between the two.
8189
8190 To get OpenSSL to support MS SGC we have to permit a second client
8191 hello message after we have sent server done. In addition we have to
8192 reset the MAC if we do get this second client hello.
8193 [Steve Henson]
8194
8195 *) Add a function 'd2i_AutoPrivateKey()' this will automatically decide
8196 if a DER encoded private key is RSA or DSA traditional format. Changed
8197 d2i_PrivateKey_bio() to use it. This is only needed for the "traditional"
8198 format DER encoded private key. Newer code should use PKCS#8 format which
8199 has the key type encoded in the ASN1 structure. Added DER private key
8200 support to pkcs8 application.
8201 [Steve Henson]
8202
8203 *) SSL 3/TLS 1 servers now don't request certificates when an anonymous
8204 ciphersuites has been selected (as required by the SSL 3/TLS 1
8205 specifications). Exception: When SSL_VERIFY_FAIL_IF_NO_PEER_CERT
8206 is set, we interpret this as a request to violate the specification
8207 (the worst that can happen is a handshake failure, and 'correct'
8208 behaviour would result in a handshake failure anyway).
8209 [Bodo Moeller]
8210
8211 *) In SSL_CTX_add_session, take into account that there might be multiple
8212 SSL_SESSION structures with the same session ID (e.g. when two threads
8213 concurrently obtain them from an external cache).
8214 The internal cache can handle only one SSL_SESSION with a given ID,
8215 so if there's a conflict, we now throw out the old one to achieve
8216 consistency.
8217 [Bodo Moeller]
8218
8219 *) Add OIDs for idea and blowfish in CBC mode. This will allow both
8220 to be used in PKCS#5 v2.0 and S/MIME. Also add checking to
8221 some routines that use cipher OIDs: some ciphers do not have OIDs
8222 defined and so they cannot be used for S/MIME and PKCS#5 v2.0 for
8223 example.
8224 [Steve Henson]
8225
8226 *) Simplify the trust setting structure and code. Now we just have
8227 two sequences of OIDs for trusted and rejected settings. These will
8228 typically have values the same as the extended key usage extension
8229 and any application specific purposes.
8230
8231 The trust checking code now has a default behaviour: it will just
8232 check for an object with the same NID as the passed id. Functions can
8233 be provided to override either the default behaviour or the behaviour
8234 for a given id. SSL client, server and email already have functions
8235 in place for compatibility: they check the NID and also return "trusted"
8236 if the certificate is self signed.
8237 [Steve Henson]
8238
8239 *) Add d2i,i2d bio/fp functions for PrivateKey: these convert the
8240 traditional format into an EVP_PKEY structure.
8241 [Steve Henson]
8242
8243 *) Add a password callback function PEM_cb() which either prompts for
8244 a password if usr_data is NULL or otherwise assumes it is a null
8245 terminated password. Allow passwords to be passed on command line
8246 environment or config files in a few more utilities.
8247 [Steve Henson]
8248
8249 *) Add a bunch of DER and PEM functions to handle PKCS#8 format private
8250 keys. Add some short names for PKCS#8 PBE algorithms and allow them
8251 to be specified on the command line for the pkcs8 and pkcs12 utilities.
8252 Update documentation.
8253 [Steve Henson]
8254
8255 *) Support for ASN1 "NULL" type. This could be handled before by using
8256 ASN1_TYPE but there wasn't any function that would try to read a NULL
8257 and produce an error if it couldn't. For compatibility we also have
8258 ASN1_NULL_new() and ASN1_NULL_free() functions but these are faked and
8259 don't allocate anything because they don't need to.
8260 [Steve Henson]
8261
8262 *) Initial support for MacOS is now provided. Examine INSTALL.MacOS
8263 for details.
8264 [Andy Polyakov, Roy Woods <roy@centicsystems.ca>]
8265
8266 *) Rebuild of the memory allocation routines used by OpenSSL code and
8267 possibly others as well. The purpose is to make an interface that
8268 provide hooks so anyone can build a separate set of allocation and
8269 deallocation routines to be used by OpenSSL, for example memory
8270 pool implementations, or something else, which was previously hard
8271 since Malloc(), Realloc() and Free() were defined as macros having
8272 the values malloc, realloc and free, respectively (except for Win32
8273 compilations). The same is provided for memory debugging code.
8274 OpenSSL already comes with functionality to find memory leaks, but
8275 this gives people a chance to debug other memory problems.
8276
8277 With these changes, a new set of functions and macros have appeared:
8278
8279 CRYPTO_set_mem_debug_functions() [F]
8280 CRYPTO_get_mem_debug_functions() [F]
8281 CRYPTO_dbg_set_options() [F]
8282 CRYPTO_dbg_get_options() [F]
8283 CRYPTO_malloc_debug_init() [M]
8284
8285 The memory debug functions are NULL by default, unless the library
8286 is compiled with CRYPTO_MDEBUG or friends is defined. If someone
8287 wants to debug memory anyway, CRYPTO_malloc_debug_init() (which
8288 gives the standard debugging functions that come with OpenSSL) or
8289 CRYPTO_set_mem_debug_functions() (tells OpenSSL to use functions
8290 provided by the library user) must be used. When the standard
8291 debugging functions are used, CRYPTO_dbg_set_options can be used to
8292 request additional information:
8293 CRYPTO_dbg_set_options(V_CYRPTO_MDEBUG_xxx) corresponds to setting
8294 the CRYPTO_MDEBUG_xxx macro when compiling the library.
8295
8296 Also, things like CRYPTO_set_mem_functions will always give the
8297 expected result (the new set of functions is used for allocation
8298 and deallocation) at all times, regardless of platform and compiler
8299 options.
8300
8301 To finish it up, some functions that were never use in any other
8302 way than through macros have a new API and new semantic:
8303
8304 CRYPTO_dbg_malloc()
8305 CRYPTO_dbg_realloc()
8306 CRYPTO_dbg_free()
8307
8308 All macros of value have retained their old syntax.
8309 [Richard Levitte and Bodo Moeller]
8310
8311 *) Some S/MIME fixes. The OID for SMIMECapabilities was wrong, the
8312 ordering of SMIMECapabilities wasn't in "strength order" and there
8313 was a missing NULL in the AlgorithmIdentifier for the SHA1 signature
8314 algorithm.
8315 [Steve Henson]
8316
8317 *) Some ASN1 types with illegal zero length encoding (INTEGER,
8318 ENUMERATED and OBJECT IDENTIFIER) choked the ASN1 routines.
8319 [Frans Heymans <fheymans@isaserver.be>, modified by Steve Henson]
8320
8321 *) Merge in my S/MIME library for OpenSSL. This provides a simple
8322 S/MIME API on top of the PKCS#7 code, a MIME parser (with enough
8323 functionality to handle multipart/signed properly) and a utility
8324 called 'smime' to call all this stuff. This is based on code I
8325 originally wrote for Celo who have kindly allowed it to be
8326 included in OpenSSL.
8327 [Steve Henson]
8328
8329 *) Add variants des_set_key_checked and des_set_key_unchecked of
8330 des_set_key (aka des_key_sched). Global variable des_check_key
8331 decides which of these is called by des_set_key; this way
8332 des_check_key behaves as it always did, but applications and
8333 the library itself, which was buggy for des_check_key == 1,
8334 have a cleaner way to pick the version they need.
8335 [Bodo Moeller]
8336
8337 *) New function PKCS12_newpass() which changes the password of a
8338 PKCS12 structure.
8339 [Steve Henson]
8340
8341 *) Modify X509_TRUST and X509_PURPOSE so it also uses a static and
8342 dynamic mix. In both cases the ids can be used as an index into the
8343 table. Also modified the X509_TRUST_add() and X509_PURPOSE_add()
8344 functions so they accept a list of the field values and the
8345 application doesn't need to directly manipulate the X509_TRUST
8346 structure.
8347 [Steve Henson]
8348
8349 *) Modify the ASN1_STRING_TABLE stuff so it also uses bsearch and doesn't
8350 need initialising.
8351 [Steve Henson]
8352
8353 *) Modify the way the V3 extension code looks up extensions. This now
8354 works in a similar way to the object code: we have some "standard"
8355 extensions in a static table which is searched with OBJ_bsearch()
8356 and the application can add dynamic ones if needed. The file
8357 crypto/x509v3/ext_dat.h now has the info: this file needs to be
8358 updated whenever a new extension is added to the core code and kept
8359 in ext_nid order. There is a simple program 'tabtest.c' which checks
8360 this. New extensions are not added too often so this file can readily
8361 be maintained manually.
8362
8363 There are two big advantages in doing things this way. The extensions
8364 can be looked up immediately and no longer need to be "added" using
8365 X509V3_add_standard_extensions(): this function now does nothing.
8366 [Side note: I get *lots* of email saying the extension code doesn't
8367 work because people forget to call this function]
8368 Also no dynamic allocation is done unless new extensions are added:
8369 so if we don't add custom extensions there is no need to call
8370 X509V3_EXT_cleanup().
8371 [Steve Henson]
8372
8373 *) Modify enc utility's salting as follows: make salting the default. Add a
8374 magic header, so unsalted files fail gracefully instead of just decrypting
8375 to garbage. This is because not salting is a big security hole, so people
8376 should be discouraged from doing it.
8377 [Ben Laurie]
8378
8379 *) Fixes and enhancements to the 'x509' utility. It allowed a message
8380 digest to be passed on the command line but it only used this
8381 parameter when signing a certificate. Modified so all relevant
8382 operations are affected by the digest parameter including the
8383 -fingerprint and -x509toreq options. Also -x509toreq choked if a
8384 DSA key was used because it didn't fix the digest.
8385 [Steve Henson]
8386
8387 *) Initial certificate chain verify code. Currently tests the untrusted
8388 certificates for consistency with the verify purpose (which is set
8389 when the X509_STORE_CTX structure is set up) and checks the pathlength.
8390
8391 There is a NO_CHAIN_VERIFY compilation option to keep the old behaviour:
8392 this is because it will reject chains with invalid extensions whereas
8393 every previous version of OpenSSL and SSLeay made no checks at all.
8394
8395 Trust code: checks the root CA for the relevant trust settings. Trust
8396 settings have an initial value consistent with the verify purpose: e.g.
8397 if the verify purpose is for SSL client use it expects the CA to be
8398 trusted for SSL client use. However the default value can be changed to
8399 permit custom trust settings: one example of this would be to only trust
8400 certificates from a specific "secure" set of CAs.
8401
8402 Also added X509_STORE_CTX_new() and X509_STORE_CTX_free() functions
8403 which should be used for version portability: especially since the
8404 verify structure is likely to change more often now.
8405
8406 SSL integration. Add purpose and trust to SSL_CTX and SSL and functions
8407 to set them. If not set then assume SSL clients will verify SSL servers
8408 and vice versa.
8409
8410 Two new options to the verify program: -untrusted allows a set of
8411 untrusted certificates to be passed in and -purpose which sets the
8412 intended purpose of the certificate. If a purpose is set then the
8413 new chain verify code is used to check extension consistency.
8414 [Steve Henson]
8415
8416 *) Support for the authority information access extension.
8417 [Steve Henson]
8418
8419 *) Modify RSA and DSA PEM read routines to transparently handle
8420 PKCS#8 format private keys. New *_PUBKEY_* functions that handle
8421 public keys in a format compatible with certificate
8422 SubjectPublicKeyInfo structures. Unfortunately there were already
8423 functions called *_PublicKey_* which used various odd formats so
8424 these are retained for compatibility: however the DSA variants were
8425 never in a public release so they have been deleted. Changed dsa/rsa
8426 utilities to handle the new format: note no releases ever handled public
8427 keys so we should be OK.
8428
8429 The primary motivation for this change is to avoid the same fiasco
8430 that dogs private keys: there are several incompatible private key
8431 formats some of which are standard and some OpenSSL specific and
8432 require various evil hacks to allow partial transparent handling and
8433 even then it doesn't work with DER formats. Given the option anything
8434 other than PKCS#8 should be dumped: but the other formats have to
8435 stay in the name of compatibility.
8436
8437 With public keys and the benefit of hindsight one standard format
8438 is used which works with EVP_PKEY, RSA or DSA structures: though
8439 it clearly returns an error if you try to read the wrong kind of key.
8440
8441 Added a -pubkey option to the 'x509' utility to output the public key.
8442 Also rename the EVP_PKEY_get_*() to EVP_PKEY_rget_*()
8443 (renamed to EVP_PKEY_get1_*() in the OpenSSL 0.9.5 release) and add
8444 EVP_PKEY_rset_*() functions (renamed to EVP_PKEY_set1_*())
8445 that do the same as the EVP_PKEY_assign_*() except they up the
8446 reference count of the added key (they don't "swallow" the
8447 supplied key).
8448 [Steve Henson]
8449
8450 *) Fixes to crypto/x509/by_file.c the code to read in certificates and
8451 CRLs would fail if the file contained no certificates or no CRLs:
8452 added a new function to read in both types and return the number
8453 read: this means that if none are read it will be an error. The
8454 DER versions of the certificate and CRL reader would always fail
8455 because it isn't possible to mix certificates and CRLs in DER format
8456 without choking one or the other routine. Changed this to just read
8457 a certificate: this is the best we can do. Also modified the code
8458 in apps/verify.c to take notice of return codes: it was previously
8459 attempting to read in certificates from NULL pointers and ignoring
8460 any errors: this is one reason why the cert and CRL reader seemed
8461 to work. It doesn't check return codes from the default certificate
8462 routines: these may well fail if the certificates aren't installed.
8463 [Steve Henson]
8464
8465 *) Code to support otherName option in GeneralName.
8466 [Steve Henson]
8467
8468 *) First update to verify code. Change the verify utility
8469 so it warns if it is passed a self signed certificate:
8470 for consistency with the normal behaviour. X509_verify
8471 has been modified to it will now verify a self signed
8472 certificate if *exactly* the same certificate appears
8473 in the store: it was previously impossible to trust a
8474 single self signed certificate. This means that:
8475 openssl verify ss.pem
8476 now gives a warning about a self signed certificate but
8477 openssl verify -CAfile ss.pem ss.pem
8478 is OK.
8479 [Steve Henson]
8480
8481 *) For servers, store verify_result in SSL_SESSION data structure
8482 (and add it to external session representation).
8483 This is needed when client certificate verifications fails,
8484 but an application-provided verification callback (set by
8485 SSL_CTX_set_cert_verify_callback) allows accepting the session
8486 anyway (i.e. leaves x509_store_ctx->error != X509_V_OK
8487 but returns 1): When the session is reused, we have to set
8488 ssl->verify_result to the appropriate error code to avoid
8489 security holes.
8490 [Bodo Moeller, problem pointed out by Lutz Jaenicke]
8491
8492 *) Fix a bug in the new PKCS#7 code: it didn't consider the
8493 case in PKCS7_dataInit() where the signed PKCS7 structure
8494 didn't contain any existing data because it was being created.
8495 [Po-Cheng Chen <pocheng@nst.com.tw>, slightly modified by Steve Henson]
8496
8497 *) Add a salt to the key derivation routines in enc.c. This
8498 forms the first 8 bytes of the encrypted file. Also add a
8499 -S option to allow a salt to be input on the command line.
8500 [Steve Henson]
8501
8502 *) New function X509_cmp(). Oddly enough there wasn't a function
8503 to compare two certificates. We do this by working out the SHA1
8504 hash and comparing that. X509_cmp() will be needed by the trust
8505 code.
8506 [Steve Henson]
8507
8508 *) SSL_get1_session() is like SSL_get_session(), but increments
8509 the reference count in the SSL_SESSION returned.
8510 [Geoff Thorpe <geoff@eu.c2.net>]
8511
8512 *) Fix for 'req': it was adding a null to request attributes.
8513 Also change the X509_LOOKUP and X509_INFO code to handle
8514 certificate auxiliary information.
8515 [Steve Henson]
8516
8517 *) Add support for 40 and 64 bit RC2 and RC4 algorithms: document
8518 the 'enc' command.
8519 [Steve Henson]
8520
8521 *) Add the possibility to add extra information to the memory leak
8522 detecting output, to form tracebacks, showing from where each
8523 allocation was originated: CRYPTO_push_info("constant string") adds
8524 the string plus current file name and line number to a per-thread
8525 stack, CRYPTO_pop_info() does the obvious, CRYPTO_remove_all_info()
8526 is like calling CYRPTO_pop_info() until the stack is empty.
8527 Also updated memory leak detection code to be multi-thread-safe.
8528 [Richard Levitte]
8529
8530 *) Add options -text and -noout to pkcs7 utility and delete the
8531 encryption options which never did anything. Update docs.
8532 [Steve Henson]
8533
8534 *) Add options to some of the utilities to allow the pass phrase
8535 to be included on either the command line (not recommended on
8536 OSes like Unix) or read from the environment. Update the
8537 manpages and fix a few bugs.
8538 [Steve Henson]
8539
8540 *) Add a few manpages for some of the openssl commands.
8541 [Steve Henson]
8542
8543 *) Fix the -revoke option in ca. It was freeing up memory twice,
8544 leaking and not finding already revoked certificates.
8545 [Steve Henson]
8546
8547 *) Extensive changes to support certificate auxiliary information.
8548 This involves the use of X509_CERT_AUX structure and X509_AUX
8549 functions. An X509_AUX function such as PEM_read_X509_AUX()
8550 can still read in a certificate file in the usual way but it
8551 will also read in any additional "auxiliary information". By
8552 doing things this way a fair degree of compatibility can be
8553 retained: existing certificates can have this information added
8554 using the new 'x509' options.
8555
8556 Current auxiliary information includes an "alias" and some trust
8557 settings. The trust settings will ultimately be used in enhanced
8558 certificate chain verification routines: currently a certificate
8559 can only be trusted if it is self signed and then it is trusted
8560 for all purposes.
8561 [Steve Henson]
8562
8563 *) Fix assembler for Alpha (tested only on DEC OSF not Linux or *BSD).
8564 The problem was that one of the replacement routines had not been working
8565 since SSLeay releases. For now the offending routine has been replaced
8566 with non-optimised assembler. Even so, this now gives around 95%
8567 performance improvement for 1024 bit RSA signs.
8568 [Mark Cox]
8569
8570 *) Hack to fix PKCS#7 decryption when used with some unorthodox RC2
8571 handling. Most clients have the effective key size in bits equal to
8572 the key length in bits: so a 40 bit RC2 key uses a 40 bit (5 byte) key.
8573 A few however don't do this and instead use the size of the decrypted key
8574 to determine the RC2 key length and the AlgorithmIdentifier to determine
8575 the effective key length. In this case the effective key length can still
8576 be 40 bits but the key length can be 168 bits for example. This is fixed
8577 by manually forcing an RC2 key into the EVP_PKEY structure because the
8578 EVP code can't currently handle unusual RC2 key sizes: it always assumes
8579 the key length and effective key length are equal.
8580 [Steve Henson]
8581
8582 *) Add a bunch of functions that should simplify the creation of
8583 X509_NAME structures. Now you should be able to do:
8584 X509_NAME_add_entry_by_txt(nm, "CN", MBSTRING_ASC, "Steve", -1, -1, 0);
8585 and have it automatically work out the correct field type and fill in
8586 the structures. The more adventurous can try:
8587 X509_NAME_add_entry_by_txt(nm, field, MBSTRING_UTF8, str, -1, -1, 0);
8588 and it will (hopefully) work out the correct multibyte encoding.
8589 [Steve Henson]
8590
8591 *) Change the 'req' utility to use the new field handling and multibyte
8592 copy routines. Before the DN field creation was handled in an ad hoc
8593 way in req, ca, and x509 which was rather broken and didn't support
8594 BMPStrings or UTF8Strings. Since some software doesn't implement
8595 BMPStrings or UTF8Strings yet, they can be enabled using the config file
8596 using the dirstring_type option. See the new comment in the default
8597 openssl.cnf for more info.
8598 [Steve Henson]
8599
8600 *) Make crypto/rand/md_rand.c more robust:
8601 - Assure unique random numbers after fork().
8602 - Make sure that concurrent threads access the global counter and
8603 md serializably so that we never lose entropy in them
8604 or use exactly the same state in multiple threads.
8605 Access to the large state is not always serializable because
8606 the additional locking could be a performance killer, and
8607 md should be large enough anyway.
8608 [Bodo Moeller]
8609
8610 *) New file apps/app_rand.c with commonly needed functionality
8611 for handling the random seed file.
8612
8613 Use the random seed file in some applications that previously did not:
8614 ca,
8615 dsaparam -genkey (which also ignored its '-rand' option),
8616 s_client,
8617 s_server,
8618 x509 (when signing).
8619 Except on systems with /dev/urandom, it is crucial to have a random
8620 seed file at least for key creation, DSA signing, and for DH exchanges;
8621 for RSA signatures we could do without one.
8622
8623 gendh and gendsa (unlike genrsa) used to read only the first byte
8624 of each file listed in the '-rand' option. The function as previously
8625 found in genrsa is now in app_rand.c and is used by all programs
8626 that support '-rand'.
8627 [Bodo Moeller]
8628
8629 *) In RAND_write_file, use mode 0600 for creating files;
8630 don't just chmod when it may be too late.
8631 [Bodo Moeller]
8632
8633 *) Report an error from X509_STORE_load_locations
8634 when X509_LOOKUP_load_file or X509_LOOKUP_add_dir failed.
8635 [Bill Perry]
8636
8637 *) New function ASN1_mbstring_copy() this copies a string in either
8638 ASCII, Unicode, Universal (4 bytes per character) or UTF8 format
8639 into an ASN1_STRING type. A mask of permissible types is passed
8640 and it chooses the "minimal" type to use or an error if not type
8641 is suitable.
8642 [Steve Henson]
8643
8644 *) Add function equivalents to the various macros in asn1.h. The old
8645 macros are retained with an M_ prefix. Code inside the library can
8646 use the M_ macros. External code (including the openssl utility)
8647 should *NOT* in order to be "shared library friendly".
8648 [Steve Henson]
8649
8650 *) Add various functions that can check a certificate's extensions
8651 to see if it usable for various purposes such as SSL client,
8652 server or S/MIME and CAs of these types. This is currently
8653 VERY EXPERIMENTAL but will ultimately be used for certificate chain
8654 verification. Also added a -purpose flag to x509 utility to
8655 print out all the purposes.
8656 [Steve Henson]
8657
8658 *) Add a CRYPTO_EX_DATA to X509 certificate structure and associated
8659 functions.
8660 [Steve Henson]
8661
8662 *) New X509V3_{X509,CRL,REVOKED}_get_d2i() functions. These will search
8663 for, obtain and decode and extension and obtain its critical flag.
8664 This allows all the necessary extension code to be handled in a
8665 single function call.
8666 [Steve Henson]
8667
8668 *) RC4 tune-up featuring 30-40% performance improvement on most RISC
8669 platforms. See crypto/rc4/rc4_enc.c for further details.
8670 [Andy Polyakov]
8671
8672 *) New -noout option to asn1parse. This causes no output to be produced
8673 its main use is when combined with -strparse and -out to extract data
8674 from a file (which may not be in ASN.1 format).
8675 [Steve Henson]
8676
8677 *) Fix for pkcs12 program. It was hashing an invalid certificate pointer
8678 when producing the local key id.
8679 [Richard Levitte <levitte@stacken.kth.se>]
8680
8681 *) New option -dhparam in s_server. This allows a DH parameter file to be
8682 stated explicitly. If it is not stated then it tries the first server
8683 certificate file. The previous behaviour hard coded the filename
8684 "server.pem".
8685 [Steve Henson]
8686
8687 *) Add -pubin and -pubout options to the rsa and dsa commands. These allow
8688 a public key to be input or output. For example:
8689 openssl rsa -in key.pem -pubout -out pubkey.pem
8690 Also added necessary DSA public key functions to handle this.
8691 [Steve Henson]
8692
8693 *) Fix so PKCS7_dataVerify() doesn't crash if no certificates are contained
8694 in the message. This was handled by allowing
8695 X509_find_by_issuer_and_serial() to tolerate a NULL passed to it.
8696 [Steve Henson, reported by Sampo Kellomaki <sampo@mail.neuronio.pt>]
8697
8698 *) Fix for bug in d2i_ASN1_bytes(): other ASN1 functions add an extra null
8699 to the end of the strings whereas this didn't. This would cause problems
8700 if strings read with d2i_ASN1_bytes() were later modified.
8701 [Steve Henson, reported by Arne Ansper <arne@ats.cyber.ee>]
8702
8703 *) Fix for base64 decode bug. When a base64 bio reads only one line of
8704 data and it contains EOF it will end up returning an error. This is
8705 caused by input 46 bytes long. The cause is due to the way base64
8706 BIOs find the start of base64 encoded data. They do this by trying a
8707 trial decode on each line until they find one that works. When they
8708 do a flag is set and it starts again knowing it can pass all the
8709 data directly through the decoder. Unfortunately it doesn't reset
8710 the context it uses. This means that if EOF is reached an attempt
8711 is made to pass two EOFs through the context and this causes the
8712 resulting error. This can also cause other problems as well. As is
8713 usual with these problems it takes *ages* to find and the fix is
8714 trivial: move one line.
8715 [Steve Henson, reported by ian@uns.ns.ac.yu (Ivan Nejgebauer) ]
8716
8717 *) Ugly workaround to get s_client and s_server working under Windows. The
8718 old code wouldn't work because it needed to select() on sockets and the
8719 tty (for keypresses and to see if data could be written). Win32 only
8720 supports select() on sockets so we select() with a 1s timeout on the
8721 sockets and then see if any characters are waiting to be read, if none
8722 are present then we retry, we also assume we can always write data to
8723 the tty. This isn't nice because the code then blocks until we've
8724 received a complete line of data and it is effectively polling the
8725 keyboard at 1s intervals: however it's quite a bit better than not
8726 working at all :-) A dedicated Windows application might handle this
8727 with an event loop for example.
8728 [Steve Henson]
8729
8730 *) Enhance RSA_METHOD structure. Now there are two extra methods, rsa_sign
8731 and rsa_verify. When the RSA_FLAGS_SIGN_VER option is set these functions
8732 will be called when RSA_sign() and RSA_verify() are used. This is useful
8733 if rsa_pub_dec() and rsa_priv_enc() equivalents are not available.
8734 For this to work properly RSA_public_decrypt() and RSA_private_encrypt()
8735 should *not* be used: RSA_sign() and RSA_verify() must be used instead.
8736 This necessitated the support of an extra signature type NID_md5_sha1
8737 for SSL signatures and modifications to the SSL library to use it instead
8738 of calling RSA_public_decrypt() and RSA_private_encrypt().
8739 [Steve Henson]
8740
8741 *) Add new -verify -CAfile and -CApath options to the crl program, these
8742 will lookup a CRL issuers certificate and verify the signature in a
8743 similar way to the verify program. Tidy up the crl program so it
8744 no longer accesses structures directly. Make the ASN1 CRL parsing a bit
8745 less strict. It will now permit CRL extensions even if it is not
8746 a V2 CRL: this will allow it to tolerate some broken CRLs.
8747 [Steve Henson]
8748
8749 *) Initialize all non-automatic variables each time one of the openssl
8750 sub-programs is started (this is necessary as they may be started
8751 multiple times from the "OpenSSL>" prompt).
8752 [Lennart Bang, Bodo Moeller]
8753
8754 *) Preliminary compilation option RSA_NULL which disables RSA crypto without
8755 removing all other RSA functionality (this is what NO_RSA does). This
8756 is so (for example) those in the US can disable those operations covered
8757 by the RSA patent while allowing storage and parsing of RSA keys and RSA
8758 key generation.
8759 [Steve Henson]
8760
8761 *) Non-copying interface to BIO pairs.
8762 (still largely untested)
8763 [Bodo Moeller]
8764
8765 *) New function ANS1_tag2str() to convert an ASN1 tag to a descriptive
8766 ASCII string. This was handled independently in various places before.
8767 [Steve Henson]
8768
8769 *) New functions UTF8_getc() and UTF8_putc() that parse and generate
8770 UTF8 strings a character at a time.
8771 [Steve Henson]
8772
8773 *) Use client_version from client hello to select the protocol
8774 (s23_srvr.c) and for RSA client key exchange verification
8775 (s3_srvr.c), as required by the SSL 3.0/TLS 1.0 specifications.
8776 [Bodo Moeller]
8777
8778 *) Add various utility functions to handle SPKACs, these were previously
8779 handled by poking round in the structure internals. Added new function
8780 NETSCAPE_SPKI_print() to print out SPKAC and a new utility 'spkac' to
8781 print, verify and generate SPKACs. Based on an original idea from
8782 Massimiliano Pala <madwolf@comune.modena.it> but extensively modified.
8783 [Steve Henson]
8784
8785 *) RIPEMD160 is operational on all platforms and is back in 'make test'.
8786 [Andy Polyakov]
8787
8788 *) Allow the config file extension section to be overwritten on the
8789 command line. Based on an original idea from Massimiliano Pala
8790 <madwolf@comune.modena.it>. The new option is called -extensions
8791 and can be applied to ca, req and x509. Also -reqexts to override
8792 the request extensions in req and -crlexts to override the crl extensions
8793 in ca.
8794 [Steve Henson]
8795
8796 *) Add new feature to the SPKAC handling in ca. Now you can include
8797 the same field multiple times by preceding it by "XXXX." for example:
8798 1.OU="Unit name 1"
8799 2.OU="Unit name 2"
8800 this is the same syntax as used in the req config file.
8801 [Steve Henson]
8802
8803 *) Allow certificate extensions to be added to certificate requests. These
8804 are specified in a 'req_extensions' option of the req section of the
8805 config file. They can be printed out with the -text option to req but
8806 are otherwise ignored at present.
8807 [Steve Henson]
8808
8809 *) Fix a horrible bug in enc_read() in crypto/evp/bio_enc.c: if the first
8810 data read consists of only the final block it would not decrypted because
8811 EVP_CipherUpdate() would correctly report zero bytes had been decrypted.
8812 A misplaced 'break' also meant the decrypted final block might not be
8813 copied until the next read.
8814 [Steve Henson]
8815
8816 *) Initial support for DH_METHOD. Again based on RSA_METHOD. Also added
8817 a few extra parameters to the DH structure: these will be useful if
8818 for example we want the value of 'q' or implement X9.42 DH.
8819 [Steve Henson]
8820
8821 *) Initial support for DSA_METHOD. This is based on the RSA_METHOD and
8822 provides hooks that allow the default DSA functions or functions on a
8823 "per key" basis to be replaced. This allows hardware acceleration and
8824 hardware key storage to be handled without major modification to the
8825 library. Also added low level modexp hooks and CRYPTO_EX structure and
8826 associated functions.
8827 [Steve Henson]
8828
8829 *) Add a new flag to memory BIOs, BIO_FLAG_MEM_RDONLY. This marks the BIO
8830 as "read only": it can't be written to and the buffer it points to will
8831 not be freed. Reading from a read only BIO is much more efficient than
8832 a normal memory BIO. This was added because there are several times when
8833 an area of memory needs to be read from a BIO. The previous method was
8834 to create a memory BIO and write the data to it, this results in two
8835 copies of the data and an O(n^2) reading algorithm. There is a new
8836 function BIO_new_mem_buf() which creates a read only memory BIO from
8837 an area of memory. Also modified the PKCS#7 routines to use read only
8838 memory BIOs.
8839 [Steve Henson]
8840
8841 *) Bugfix: ssl23_get_client_hello did not work properly when called in
8842 state SSL23_ST_SR_CLNT_HELLO_B, i.e. when the first 7 bytes of
8843 a SSLv2-compatible client hello for SSLv3 or TLSv1 could be read,
8844 but a retry condition occured while trying to read the rest.
8845 [Bodo Moeller]
8846
8847 *) The PKCS7_ENC_CONTENT_new() function was setting the content type as
8848 NID_pkcs7_encrypted by default: this was wrong since this should almost
8849 always be NID_pkcs7_data. Also modified the PKCS7_set_type() to handle
8850 the encrypted data type: this is a more sensible place to put it and it
8851 allows the PKCS#12 code to be tidied up that duplicated this
8852 functionality.
8853 [Steve Henson]
8854
8855 *) Changed obj_dat.pl script so it takes its input and output files on
8856 the command line. This should avoid shell escape redirection problems
8857 under Win32.
8858 [Steve Henson]
8859
8860 *) Initial support for certificate extension requests, these are included
8861 in things like Xenroll certificate requests. Included functions to allow
8862 extensions to be obtained and added.
8863 [Steve Henson]
8864
8865 *) -crlf option to s_client and s_server for sending newlines as
8866 CRLF (as required by many protocols).
8867 [Bodo Moeller]
8868
8869 Changes between 0.9.3a and 0.9.4 [09 Aug 1999]
8870
8871 *) Install libRSAglue.a when OpenSSL is built with RSAref.
8872 [Ralf S. Engelschall]
8873
8874 *) A few more ``#ifndef NO_FP_API / #endif'' pairs for consistency.
8875 [Andrija Antonijevic <TheAntony2@bigfoot.com>]
8876
8877 *) Fix -startdate and -enddate (which was missing) arguments to 'ca'
8878 program.
8879 [Steve Henson]
8880
8881 *) New function DSA_dup_DH, which duplicates DSA parameters/keys as
8882 DH parameters/keys (q is lost during that conversion, but the resulting
8883 DH parameters contain its length).
8884
8885 For 1024-bit p, DSA_generate_parameters followed by DSA_dup_DH is
8886 much faster than DH_generate_parameters (which creates parameters
8887 where p = 2*q + 1), and also the smaller q makes DH computations
8888 much more efficient (160-bit exponentiation instead of 1024-bit
8889 exponentiation); so this provides a convenient way to support DHE
8890 ciphersuites in SSL/TLS servers (see ssl/ssltest.c). It is of
8891 utter importance to use
8892 SSL_CTX_set_options(s_ctx, SSL_OP_SINGLE_DH_USE);
8893 or
8894 SSL_set_options(s_ctx, SSL_OP_SINGLE_DH_USE);
8895 when such DH parameters are used, because otherwise small subgroup
8896 attacks may become possible!
8897 [Bodo Moeller]
8898
8899 *) Avoid memory leak in i2d_DHparams.
8900 [Bodo Moeller]
8901
8902 *) Allow the -k option to be used more than once in the enc program:
8903 this allows the same encrypted message to be read by multiple recipients.
8904 [Steve Henson]
8905
8906 *) New function OBJ_obj2txt(buf, buf_len, a, no_name), this converts
8907 an ASN1_OBJECT to a text string. If the "no_name" parameter is set then
8908 it will always use the numerical form of the OID, even if it has a short
8909 or long name.
8910 [Steve Henson]
8911
8912 *) Added an extra RSA flag: RSA_FLAG_EXT_PKEY. Previously the rsa_mod_exp
8913 method only got called if p,q,dmp1,dmq1,iqmp components were present,
8914 otherwise bn_mod_exp was called. In the case of hardware keys for example
8915 no private key components need be present and it might store extra data
8916 in the RSA structure, which cannot be accessed from bn_mod_exp.
8917 By setting RSA_FLAG_EXT_PKEY rsa_mod_exp will always be called for
8918 private key operations.
8919 [Steve Henson]
8920
8921 *) Added support for SPARC Linux.
8922 [Andy Polyakov]
8923
8924 *) pem_password_cb function type incompatibly changed from
8925 typedef int pem_password_cb(char *buf, int size, int rwflag);
8926 to
8927 ....(char *buf, int size, int rwflag, void *userdata);
8928 so that applications can pass data to their callbacks:
8929 The PEM[_ASN1]_{read,write}... functions and macros now take an
8930 additional void * argument, which is just handed through whenever
8931 the password callback is called.
8932 [Damien Miller <dmiller@ilogic.com.au>; tiny changes by Bodo Moeller]
8933
8934 New function SSL_CTX_set_default_passwd_cb_userdata.
8935
8936 Compatibility note: As many C implementations push function arguments
8937 onto the stack in reverse order, the new library version is likely to
8938 interoperate with programs that have been compiled with the old
8939 pem_password_cb definition (PEM_whatever takes some data that
8940 happens to be on the stack as its last argument, and the callback
8941 just ignores this garbage); but there is no guarantee whatsoever that
8942 this will work.
8943
8944 *) The -DPLATFORM="\"$(PLATFORM)\"" definition and the similar -DCFLAGS=...
8945 (both in crypto/Makefile.ssl for use by crypto/cversion.c) caused
8946 problems not only on Windows, but also on some Unix platforms.
8947 To avoid problematic command lines, these definitions are now in an
8948 auto-generated file crypto/buildinf.h (created by crypto/Makefile.ssl
8949 for standard "make" builds, by util/mk1mf.pl for "mk1mf" builds).
8950 [Bodo Moeller]
8951
8952 *) MIPS III/IV assembler module is reimplemented.
8953 [Andy Polyakov]
8954
8955 *) More DES library cleanups: remove references to srand/rand and
8956 delete an unused file.
8957 [Ulf Möller]
8958
8959 *) Add support for the the free Netwide assembler (NASM) under Win32,
8960 since not many people have MASM (ml) and it can be hard to obtain.
8961 This is currently experimental but it seems to work OK and pass all
8962 the tests. Check out INSTALL.W32 for info.
8963 [Steve Henson]
8964
8965 *) Fix memory leaks in s3_clnt.c: All non-anonymous SSL3/TLS1 connections
8966 without temporary keys kept an extra copy of the server key,
8967 and connections with temporary keys did not free everything in case
8968 of an error.
8969 [Bodo Moeller]
8970
8971 *) New function RSA_check_key and new openssl rsa option -check
8972 for verifying the consistency of RSA keys.
8973 [Ulf Moeller, Bodo Moeller]
8974
8975 *) Various changes to make Win32 compile work:
8976 1. Casts to avoid "loss of data" warnings in p5_crpt2.c
8977 2. Change unsigned int to int in b_dump.c to avoid "signed/unsigned
8978 comparison" warnings.
8979 3. Add sk_<TYPE>_sort to DEF file generator and do make update.
8980 [Steve Henson]
8981
8982 *) Add a debugging option to PKCS#5 v2 key generation function: when
8983 you #define DEBUG_PKCS5V2 passwords, salts, iteration counts and
8984 derived keys are printed to stderr.
8985 [Steve Henson]
8986
8987 *) Copy the flags in ASN1_STRING_dup().
8988 [Roman E. Pavlov <pre@mo.msk.ru>]
8989
8990 *) The x509 application mishandled signing requests containing DSA
8991 keys when the signing key was also DSA and the parameters didn't match.
8992
8993 It was supposed to omit the parameters when they matched the signing key:
8994 the verifying software was then supposed to automatically use the CA's
8995 parameters if they were absent from the end user certificate.
8996
8997 Omitting parameters is no longer recommended. The test was also
8998 the wrong way round! This was probably due to unusual behaviour in
8999 EVP_cmp_parameters() which returns 1 if the parameters match.
9000 This meant that parameters were omitted when they *didn't* match and
9001 the certificate was useless. Certificates signed with 'ca' didn't have
9002 this bug.
9003 [Steve Henson, reported by Doug Erickson <Doug.Erickson@Part.NET>]
9004
9005 *) Memory leak checking (-DCRYPTO_MDEBUG) had some problems.
9006 The interface is as follows:
9007 Applications can use
9008 CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_ON) aka MemCheck_start(),
9009 CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_OFF) aka MemCheck_stop();
9010 "off" is now the default.
9011 The library internally uses
9012 CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_DISABLE) aka MemCheck_off(),
9013 CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_ENABLE) aka MemCheck_on()
9014 to disable memory-checking temporarily.
9015
9016 Some inconsistent states that previously were possible (and were
9017 even the default) are now avoided.
9018
9019 -DCRYPTO_MDEBUG_TIME is new and additionally stores the current time
9020 with each memory chunk allocated; this is occasionally more helpful
9021 than just having a counter.
9022
9023 -DCRYPTO_MDEBUG_THREAD is also new and adds the thread ID.
9024
9025 -DCRYPTO_MDEBUG_ALL enables all of the above, plus any future
9026 extensions.
9027 [Bodo Moeller]
9028
9029 *) Introduce "mode" for SSL structures (with defaults in SSL_CTX),
9030 which largely parallels "options", but is for changing API behaviour,
9031 whereas "options" are about protocol behaviour.
9032 Initial "mode" flags are:
9033
9034 SSL_MODE_ENABLE_PARTIAL_WRITE Allow SSL_write to report success when
9035 a single record has been written.
9036 SSL_MODE_ACCEPT_MOVING_WRITE_BUFFER Don't insist that SSL_write
9037 retries use the same buffer location.
9038 (But all of the contents must be
9039 copied!)
9040 [Bodo Moeller]
9041
9042 *) Bugfix: SSL_set_options ignored its parameter, only SSL_CTX_set_options
9043 worked.
9044
9045 *) Fix problems with no-hmac etc.
9046 [Ulf Möller, pointed out by Brian Wellington <bwelling@tislabs.com>]
9047
9048 *) New functions RSA_get_default_method(), RSA_set_method() and
9049 RSA_get_method(). These allows replacement of RSA_METHODs without having
9050 to mess around with the internals of an RSA structure.
9051 [Steve Henson]
9052
9053 *) Fix memory leaks in DSA_do_sign and DSA_is_prime.
9054 Also really enable memory leak checks in openssl.c and in some
9055 test programs.
9056 [Chad C. Mulligan, Bodo Moeller]
9057
9058 *) Fix a bug in d2i_ASN1_INTEGER() and i2d_ASN1_INTEGER() which can mess
9059 up the length of negative integers. This has now been simplified to just
9060 store the length when it is first determined and use it later, rather
9061 than trying to keep track of where data is copied and updating it to
9062 point to the end.
9063 [Steve Henson, reported by Brien Wheeler
9064 <bwheeler@authentica-security.com>]
9065
9066 *) Add a new function PKCS7_signatureVerify. This allows the verification
9067 of a PKCS#7 signature but with the signing certificate passed to the
9068 function itself. This contrasts with PKCS7_dataVerify which assumes the
9069 certificate is present in the PKCS#7 structure. This isn't always the
9070 case: certificates can be omitted from a PKCS#7 structure and be
9071 distributed by "out of band" means (such as a certificate database).
9072 [Steve Henson]
9073
9074 *) Complete the PEM_* macros with DECLARE_PEM versions to replace the
9075 function prototypes in pem.h, also change util/mkdef.pl to add the
9076 necessary function names.
9077 [Steve Henson]
9078
9079 *) mk1mf.pl (used by Windows builds) did not properly read the
9080 options set by Configure in the top level Makefile, and Configure
9081 was not even able to write more than one option correctly.
9082 Fixed, now "no-idea no-rc5 -DCRYPTO_MDEBUG" etc. works as intended.
9083 [Bodo Moeller]
9084
9085 *) New functions CONF_load_bio() and CONF_load_fp() to allow a config
9086 file to be loaded from a BIO or FILE pointer. The BIO version will
9087 for example allow memory BIOs to contain config info.
9088 [Steve Henson]
9089
9090 *) New function "CRYPTO_num_locks" that returns CRYPTO_NUM_LOCKS.
9091 Whoever hopes to achieve shared-library compatibility across versions
9092 must use this, not the compile-time macro.
9093 (Exercise 0.9.4: Which is the minimum library version required by
9094 such programs?)
9095 Note: All this applies only to multi-threaded programs, others don't
9096 need locks.
9097 [Bodo Moeller]
9098
9099 *) Add missing case to s3_clnt.c state machine -- one of the new SSL tests
9100 through a BIO pair triggered the default case, i.e.
9101 SSLerr(...,SSL_R_UNKNOWN_STATE).
9102 [Bodo Moeller]
9103
9104 *) New "BIO pair" concept (crypto/bio/bss_bio.c) so that applications
9105 can use the SSL library even if none of the specific BIOs is
9106 appropriate.
9107 [Bodo Moeller]
9108
9109 *) Fix a bug in i2d_DSAPublicKey() which meant it returned the wrong value
9110 for the encoded length.
9111 [Jeon KyoungHo <khjeon@sds.samsung.co.kr>]
9112
9113 *) Add initial documentation of the X509V3 functions.
9114 [Steve Henson]
9115
9116 *) Add a new pair of functions PEM_write_PKCS8PrivateKey() and
9117 PEM_write_bio_PKCS8PrivateKey() that are equivalent to
9118 PEM_write_PrivateKey() and PEM_write_bio_PrivateKey() but use the more
9119 secure PKCS#8 private key format with a high iteration count.
9120 [Steve Henson]
9121
9122 *) Fix determination of Perl interpreter: A perl or perl5
9123 _directory_ in $PATH was also accepted as the interpreter.
9124 [Ralf S. Engelschall]
9125
9126 *) Fix demos/sign/sign.c: well there wasn't anything strictly speaking
9127 wrong with it but it was very old and did things like calling
9128 PEM_ASN1_read() directly and used MD5 for the hash not to mention some
9129 unusual formatting.
9130 [Steve Henson]
9131
9132 *) Fix demos/selfsign.c: it used obsolete and deleted functions, changed
9133 to use the new extension code.
9134 [Steve Henson]
9135
9136 *) Implement the PEM_read/PEM_write functions in crypto/pem/pem_all.c
9137 with macros. This should make it easier to change their form, add extra
9138 arguments etc. Fix a few PEM prototypes which didn't have cipher as a
9139 constant.
9140 [Steve Henson]
9141
9142 *) Add to configuration table a new entry that can specify an alternative
9143 name for unistd.h (for pre-POSIX systems); we need this for NeXTstep,
9144 according to Mark Crispin <MRC@Panda.COM>.
9145 [Bodo Moeller]
9146
9147 #if 0
9148 *) DES CBC did not update the IV. Weird.
9149 [Ben Laurie]
9150 #else
9151 des_cbc_encrypt does not update the IV, but des_ncbc_encrypt does.
9152 Changing the behaviour of the former might break existing programs --
9153 where IV updating is needed, des_ncbc_encrypt can be used.
9154 #endif
9155
9156 *) When bntest is run from "make test" it drives bc to check its
9157 calculations, as well as internally checking them. If an internal check
9158 fails, it needs to cause bc to give a non-zero result or make test carries
9159 on without noticing the failure. Fixed.
9160 [Ben Laurie]
9161
9162 *) DES library cleanups.
9163 [Ulf Möller]
9164
9165 *) Add support for PKCS#5 v2.0 PBE algorithms. This will permit PKCS#8 to be
9166 used with any cipher unlike PKCS#5 v1.5 which can at most handle 64 bit
9167 ciphers. NOTE: although the key derivation function has been verified
9168 against some published test vectors it has not been extensively tested
9169 yet. Added a -v2 "cipher" option to pkcs8 application to allow the use
9170 of v2.0.
9171 [Steve Henson]
9172
9173 *) Instead of "mkdir -p", which is not fully portable, use new
9174 Perl script "util/mkdir-p.pl".
9175 [Bodo Moeller]
9176
9177 *) Rewrite the way password based encryption (PBE) is handled. It used to
9178 assume that the ASN1 AlgorithmIdentifier parameter was a PBEParameter
9179 structure. This was true for the PKCS#5 v1.5 and PKCS#12 PBE algorithms
9180 but doesn't apply to PKCS#5 v2.0 where it can be something else. Now
9181 the 'parameter' field of the AlgorithmIdentifier is passed to the
9182 underlying key generation function so it must do its own ASN1 parsing.
9183 This has also changed the EVP_PBE_CipherInit() function which now has a
9184 'parameter' argument instead of literal salt and iteration count values
9185 and the function EVP_PBE_ALGOR_CipherInit() has been deleted.
9186 [Steve Henson]
9187
9188 *) Support for PKCS#5 v1.5 compatible password based encryption algorithms
9189 and PKCS#8 functionality. New 'pkcs8' application linked to openssl.
9190 Needed to change the PEM_STRING_EVP_PKEY value which was just "PRIVATE
9191 KEY" because this clashed with PKCS#8 unencrypted string. Since this
9192 value was just used as a "magic string" and not used directly its
9193 value doesn't matter.
9194 [Steve Henson]
9195
9196 *) Introduce some semblance of const correctness to BN. Shame C doesn't
9197 support mutable.
9198 [Ben Laurie]
9199
9200 *) "linux-sparc64" configuration (ultrapenguin).
9201 [Ray Miller <ray.miller@oucs.ox.ac.uk>]
9202 "linux-sparc" configuration.
9203 [Christian Forster <fo@hawo.stw.uni-erlangen.de>]
9204
9205 *) config now generates no-xxx options for missing ciphers.
9206 [Ulf Möller]
9207
9208 *) Support the EBCDIC character set (work in progress).
9209 File ebcdic.c not yet included because it has a different license.
9210 [Martin Kraemer <Martin.Kraemer@MchP.Siemens.De>]
9211
9212 *) Support BS2000/OSD-POSIX.
9213 [Martin Kraemer <Martin.Kraemer@MchP.Siemens.De>]
9214
9215 *) Make callbacks for key generation use void * instead of char *.
9216 [Ben Laurie]
9217
9218 *) Make S/MIME samples compile (not yet tested).
9219 [Ben Laurie]
9220
9221 *) Additional typesafe stacks.
9222 [Ben Laurie]
9223
9224 *) New configuration variants "bsdi-elf-gcc" (BSD/OS 4.x).
9225 [Bodo Moeller]
9226
9227
9228 Changes between 0.9.3 and 0.9.3a [29 May 1999]
9229
9230 *) New configuration variant "sco5-gcc".
9231
9232 *) Updated some demos.
9233 [Sean O Riordain, Wade Scholine]
9234
9235 *) Add missing BIO_free at exit of pkcs12 application.
9236 [Wu Zhigang]
9237
9238 *) Fix memory leak in conf.c.
9239 [Steve Henson]
9240
9241 *) Updates for Win32 to assembler version of MD5.
9242 [Steve Henson]
9243
9244 *) Set #! path to perl in apps/der_chop to where we found it
9245 instead of using a fixed path.
9246 [Bodo Moeller]
9247
9248 *) SHA library changes for irix64-mips4-cc.
9249 [Andy Polyakov]
9250
9251 *) Improvements for VMS support.
9252 [Richard Levitte]
9253
9254
9255 Changes between 0.9.2b and 0.9.3 [24 May 1999]
9256
9257 *) Bignum library bug fix. IRIX 6 passes "make test" now!
9258 This also avoids the problems with SC4.2 and unpatched SC5.
9259 [Andy Polyakov <appro@fy.chalmers.se>]
9260
9261 *) New functions sk_num, sk_value and sk_set to replace the previous macros.
9262 These are required because of the typesafe stack would otherwise break
9263 existing code. If old code used a structure member which used to be STACK
9264 and is now STACK_OF (for example cert in a PKCS7_SIGNED structure) with
9265 sk_num or sk_value it would produce an error because the num, data members
9266 are not present in STACK_OF. Now it just produces a warning. sk_set
9267 replaces the old method of assigning a value to sk_value
9268 (e.g. sk_value(x, i) = y) which the library used in a few cases. Any code
9269 that does this will no longer work (and should use sk_set instead) but
9270 this could be regarded as a "questionable" behaviour anyway.
9271 [Steve Henson]
9272
9273 *) Fix most of the other PKCS#7 bugs. The "experimental" code can now
9274 correctly handle encrypted S/MIME data.
9275 [Steve Henson]
9276
9277 *) Change type of various DES function arguments from des_cblock
9278 (which means, in function argument declarations, pointer to char)
9279 to des_cblock * (meaning pointer to array with 8 char elements),
9280 which allows the compiler to do more typechecking; it was like
9281 that back in SSLeay, but with lots of ugly casts.
9282
9283 Introduce new type const_des_cblock.
9284 [Bodo Moeller]
9285
9286 *) Reorganise the PKCS#7 library and get rid of some of the more obvious
9287 problems: find RecipientInfo structure that matches recipient certificate
9288 and initialise the ASN1 structures properly based on passed cipher.
9289 [Steve Henson]
9290
9291 *) Belatedly make the BN tests actually check the results.
9292 [Ben Laurie]
9293
9294 *) Fix the encoding and decoding of negative ASN1 INTEGERS and conversion
9295 to and from BNs: it was completely broken. New compilation option
9296 NEG_PUBKEY_BUG to allow for some broken certificates that encode public
9297 key elements as negative integers.
9298 [Steve Henson]
9299
9300 *) Reorganize and speed up MD5.
9301 [Andy Polyakov <appro@fy.chalmers.se>]
9302
9303 *) VMS support.
9304 [Richard Levitte <richard@levitte.org>]
9305
9306 *) New option -out to asn1parse to allow the parsed structure to be
9307 output to a file. This is most useful when combined with the -strparse
9308 option to examine the output of things like OCTET STRINGS.
9309 [Steve Henson]
9310
9311 *) Make SSL library a little more fool-proof by not requiring any longer
9312 that SSL_set_{accept,connect}_state be called before
9313 SSL_{accept,connect} may be used (SSL_set_..._state is omitted
9314 in many applications because usually everything *appeared* to work as
9315 intended anyway -- now it really works as intended).
9316 [Bodo Moeller]
9317
9318 *) Move openssl.cnf out of lib/.
9319 [Ulf Möller]
9320
9321 *) Fix various things to let OpenSSL even pass ``egcc -pipe -O2 -Wall
9322 -Wshadow -Wpointer-arith -Wcast-align -Wmissing-prototypes
9323 -Wmissing-declarations -Wnested-externs -Winline'' with EGCS 1.1.2+
9324 [Ralf S. Engelschall]
9325
9326 *) Various fixes to the EVP and PKCS#7 code. It may now be able to
9327 handle PKCS#7 enveloped data properly.
9328 [Sebastian Akerman <sak@parallelconsulting.com>, modified by Steve]
9329
9330 *) Create a duplicate of the SSL_CTX's CERT in SSL_new instead of
9331 copying pointers. The cert_st handling is changed by this in
9332 various ways (and thus what used to be known as ctx->default_cert
9333 is now called ctx->cert, since we don't resort to s->ctx->[default_]cert
9334 any longer when s->cert does not give us what we need).
9335 ssl_cert_instantiate becomes obsolete by this change.
9336 As soon as we've got the new code right (possibly it already is?),
9337 we have solved a couple of bugs of the earlier code where s->cert
9338 was used as if it could not have been shared with other SSL structures.
9339
9340 Note that using the SSL API in certain dirty ways now will result
9341 in different behaviour than observed with earlier library versions:
9342 Changing settings for an SSL_CTX *ctx after having done s = SSL_new(ctx)
9343 does not influence s as it used to.
9344
9345 In order to clean up things more thoroughly, inside SSL_SESSION
9346 we don't use CERT any longer, but a new structure SESS_CERT
9347 that holds per-session data (if available); currently, this is
9348 the peer's certificate chain and, for clients, the server's certificate
9349 and temporary key. CERT holds only those values that can have
9350 meaningful defaults in an SSL_CTX.
9351 [Bodo Moeller]
9352
9353 *) New function X509V3_EXT_i2d() to create an X509_EXTENSION structure
9354 from the internal representation. Various PKCS#7 fixes: remove some
9355 evil casts and set the enc_dig_alg field properly based on the signing
9356 key type.
9357 [Steve Henson]
9358
9359 *) Allow PKCS#12 password to be set from the command line or the
9360 environment. Let 'ca' get its config file name from the environment
9361 variables "OPENSSL_CONF" or "SSLEAY_CONF" (for consistency with 'req'
9362 and 'x509').
9363 [Steve Henson]
9364
9365 *) Allow certificate policies extension to use an IA5STRING for the
9366 organization field. This is contrary to the PKIX definition but
9367 VeriSign uses it and IE5 only recognises this form. Document 'x509'
9368 extension option.
9369 [Steve Henson]
9370
9371 *) Add PEDANTIC compiler flag to allow compilation with gcc -pedantic,
9372 without disallowing inline assembler and the like for non-pedantic builds.
9373 [Ben Laurie]
9374
9375 *) Support Borland C++ builder.
9376 [Janez Jere <jj@void.si>, modified by Ulf Möller]
9377
9378 *) Support Mingw32.
9379 [Ulf Möller]
9380
9381 *) SHA-1 cleanups and performance enhancements.
9382 [Andy Polyakov <appro@fy.chalmers.se>]
9383
9384 *) Sparc v8plus assembler for the bignum library.
9385 [Andy Polyakov <appro@fy.chalmers.se>]
9386
9387 *) Accept any -xxx and +xxx compiler options in Configure.
9388 [Ulf Möller]
9389
9390 *) Update HPUX configuration.
9391 [Anonymous]
9392
9393 *) Add missing sk_<type>_unshift() function to safestack.h
9394 [Ralf S. Engelschall]
9395
9396 *) New function SSL_CTX_use_certificate_chain_file that sets the
9397 "extra_cert"s in addition to the certificate. (This makes sense
9398 only for "PEM" format files, as chains as a whole are not
9399 DER-encoded.)
9400 [Bodo Moeller]
9401
9402 *) Support verify_depth from the SSL API.
9403 x509_vfy.c had what can be considered an off-by-one-error:
9404 Its depth (which was not part of the external interface)
9405 was actually counting the number of certificates in a chain;
9406 now it really counts the depth.
9407 [Bodo Moeller]
9408
9409 *) Bugfix in crypto/x509/x509_cmp.c: The SSLerr macro was used
9410 instead of X509err, which often resulted in confusing error
9411 messages since the error codes are not globally unique
9412 (e.g. an alleged error in ssl3_accept when a certificate
9413 didn't match the private key).
9414
9415 *) New function SSL_CTX_set_session_id_context that allows to set a default
9416 value (so that you don't need SSL_set_session_id_context for each
9417 connection using the SSL_CTX).
9418 [Bodo Moeller]
9419
9420 *) OAEP decoding bug fix.
9421 [Ulf Möller]
9422
9423 *) Support INSTALL_PREFIX for package builders, as proposed by
9424 David Harris.
9425 [Bodo Moeller]
9426
9427 *) New Configure options "threads" and "no-threads". For systems
9428 where the proper compiler options are known (currently Solaris
9429 and Linux), "threads" is the default.
9430 [Bodo Moeller]
9431
9432 *) New script util/mklink.pl as a faster substitute for util/mklink.sh.
9433 [Bodo Moeller]
9434
9435 *) Install various scripts to $(OPENSSLDIR)/misc, not to
9436 $(INSTALLTOP)/bin -- they shouldn't clutter directories
9437 such as /usr/local/bin.
9438 [Bodo Moeller]
9439
9440 *) "make linux-shared" to build shared libraries.
9441 [Niels Poppe <niels@netbox.org>]
9442
9443 *) New Configure option no-<cipher> (rsa, idea, rc5, ...).
9444 [Ulf Möller]
9445
9446 *) Add the PKCS#12 API documentation to openssl.txt. Preliminary support for
9447 extension adding in x509 utility.
9448 [Steve Henson]
9449
9450 *) Remove NOPROTO sections and error code comments.
9451 [Ulf Möller]
9452
9453 *) Partial rewrite of the DEF file generator to now parse the ANSI
9454 prototypes.
9455 [Steve Henson]
9456
9457 *) New Configure options --prefix=DIR and --openssldir=DIR.
9458 [Ulf Möller]
9459
9460 *) Complete rewrite of the error code script(s). It is all now handled
9461 by one script at the top level which handles error code gathering,
9462 header rewriting and C source file generation. It should be much better
9463 than the old method: it now uses a modified version of Ulf's parser to
9464 read the ANSI prototypes in all header files (thus the old K&R definitions
9465 aren't needed for error creation any more) and do a better job of
9466 translating function codes into names. The old 'ASN1 error code imbedded
9467 in a comment' is no longer necessary and it doesn't use .err files which
9468 have now been deleted. Also the error code call doesn't have to appear all
9469 on one line (which resulted in some large lines...).
9470 [Steve Henson]
9471
9472 *) Change #include filenames from <foo.h> to <openssl/foo.h>.
9473 [Bodo Moeller]
9474
9475 *) Change behaviour of ssl2_read when facing length-0 packets: Don't return
9476 0 (which usually indicates a closed connection), but continue reading.
9477 [Bodo Moeller]
9478
9479 *) Fix some race conditions.
9480 [Bodo Moeller]
9481
9482 *) Add support for CRL distribution points extension. Add Certificate
9483 Policies and CRL distribution points documentation.
9484 [Steve Henson]
9485
9486 *) Move the autogenerated header file parts to crypto/opensslconf.h.
9487 [Ulf Möller]
9488
9489 *) Fix new 56-bit DES export ciphersuites: they were using 7 bytes instead of
9490 8 of keying material. Merlin has also confirmed interop with this fix
9491 between OpenSSL and Baltimore C/SSL 2.0 and J/SSL 2.0.
9492 [Merlin Hughes <merlin@baltimore.ie>]
9493
9494 *) Fix lots of warnings.
9495 [Richard Levitte <levitte@stacken.kth.se>]
9496
9497 *) In add_cert_dir() in crypto/x509/by_dir.c, break out of the loop if
9498 the directory spec didn't end with a LIST_SEPARATOR_CHAR.
9499 [Richard Levitte <levitte@stacken.kth.se>]
9500
9501 *) Fix problems with sizeof(long) == 8.
9502 [Andy Polyakov <appro@fy.chalmers.se>]
9503
9504 *) Change functions to ANSI C.
9505 [Ulf Möller]
9506
9507 *) Fix typos in error codes.
9508 [Martin Kraemer <Martin.Kraemer@MchP.Siemens.De>, Ulf Möller]
9509
9510 *) Remove defunct assembler files from Configure.
9511 [Ulf Möller]
9512
9513 *) SPARC v8 assembler BIGNUM implementation.
9514 [Andy Polyakov <appro@fy.chalmers.se>]
9515
9516 *) Support for Certificate Policies extension: both print and set.
9517 Various additions to support the r2i method this uses.
9518 [Steve Henson]
9519
9520 *) A lot of constification, and fix a bug in X509_NAME_oneline() that could
9521 return a const string when you are expecting an allocated buffer.
9522 [Ben Laurie]
9523
9524 *) Add support for ASN1 types UTF8String and VISIBLESTRING, also the CHOICE
9525 types DirectoryString and DisplayText.
9526 [Steve Henson]
9527
9528 *) Add code to allow r2i extensions to access the configuration database,
9529 add an LHASH database driver and add several ctx helper functions.
9530 [Steve Henson]
9531
9532 *) Fix an evil bug in bn_expand2() which caused various BN functions to
9533 fail when they extended the size of a BIGNUM.
9534 [Steve Henson]
9535
9536 *) Various utility functions to handle SXNet extension. Modify mkdef.pl to
9537 support typesafe stack.
9538 [Steve Henson]
9539
9540 *) Fix typo in SSL_[gs]et_options().
9541 [Nils Frostberg <nils@medcom.se>]
9542
9543 *) Delete various functions and files that belonged to the (now obsolete)
9544 old X509V3 handling code.
9545 [Steve Henson]
9546
9547 *) New Configure option "rsaref".
9548 [Ulf Möller]
9549
9550 *) Don't auto-generate pem.h.
9551 [Bodo Moeller]
9552
9553 *) Introduce type-safe ASN.1 SETs.
9554 [Ben Laurie]
9555
9556 *) Convert various additional casted stacks to type-safe STACK_OF() variants.
9557 [Ben Laurie, Ralf S. Engelschall, Steve Henson]
9558
9559 *) Introduce type-safe STACKs. This will almost certainly break lots of code
9560 that links with OpenSSL (well at least cause lots of warnings), but fear
9561 not: the conversion is trivial, and it eliminates loads of evil casts. A
9562 few STACKed things have been converted already. Feel free to convert more.
9563 In the fullness of time, I'll do away with the STACK type altogether.
9564 [Ben Laurie]
9565
9566 *) Add `openssl ca -revoke <certfile>' facility which revokes a certificate
9567 specified in <certfile> by updating the entry in the index.txt file.
9568 This way one no longer has to edit the index.txt file manually for
9569 revoking a certificate. The -revoke option does the gory details now.
9570 [Massimiliano Pala <madwolf@openca.org>, Ralf S. Engelschall]
9571
9572 *) Fix `openssl crl -noout -text' combination where `-noout' killed the
9573 `-text' option at all and this way the `-noout -text' combination was
9574 inconsistent in `openssl crl' with the friends in `openssl x509|rsa|dsa'.
9575 [Ralf S. Engelschall]
9576
9577 *) Make sure a corresponding plain text error message exists for the
9578 X509_V_ERR_CERT_REVOKED/23 error number which can occur when a
9579 verify callback function determined that a certificate was revoked.
9580 [Ralf S. Engelschall]
9581
9582 *) Bugfix: In test/testenc, don't test "openssl <cipher>" for
9583 ciphers that were excluded, e.g. by -DNO_IDEA. Also, test
9584 all available cipers including rc5, which was forgotten until now.
9585 In order to let the testing shell script know which algorithms
9586 are available, a new (up to now undocumented) command
9587 "openssl list-cipher-commands" is used.
9588 [Bodo Moeller]
9589
9590 *) Bugfix: s_client occasionally would sleep in select() when
9591 it should have checked SSL_pending() first.
9592 [Bodo Moeller]
9593
9594 *) New functions DSA_do_sign and DSA_do_verify to provide access to
9595 the raw DSA values prior to ASN.1 encoding.
9596 [Ulf Möller]
9597
9598 *) Tweaks to Configure
9599 [Niels Poppe <niels@netbox.org>]
9600
9601 *) Add support for PKCS#5 v2.0 ASN1 PBES2 structures. No other support,
9602 yet...
9603 [Steve Henson]
9604
9605 *) New variables $(RANLIB) and $(PERL) in the Makefiles.
9606 [Ulf Möller]
9607
9608 *) New config option to avoid instructions that are illegal on the 80386.
9609 The default code is faster, but requires at least a 486.
9610 [Ulf Möller]
9611
9612 *) Got rid of old SSL2_CLIENT_VERSION (inconsistently used) and
9613 SSL2_SERVER_VERSION (not used at all) macros, which are now the
9614 same as SSL2_VERSION anyway.
9615 [Bodo Moeller]
9616
9617 *) New "-showcerts" option for s_client.
9618 [Bodo Moeller]
9619
9620 *) Still more PKCS#12 integration. Add pkcs12 application to openssl
9621 application. Various cleanups and fixes.
9622 [Steve Henson]
9623
9624 *) More PKCS#12 integration. Add new pkcs12 directory with Makefile.ssl and
9625 modify error routines to work internally. Add error codes and PBE init
9626 to library startup routines.
9627 [Steve Henson]
9628
9629 *) Further PKCS#12 integration. Added password based encryption, PKCS#8 and
9630 packing functions to asn1 and evp. Changed function names and error
9631 codes along the way.
9632 [Steve Henson]
9633
9634 *) PKCS12 integration: and so it begins... First of several patches to
9635 slowly integrate PKCS#12 functionality into OpenSSL. Add PKCS#12
9636 objects to objects.h
9637 [Steve Henson]
9638
9639 *) Add a new 'indent' option to some X509V3 extension code. Initial ASN1
9640 and display support for Thawte strong extranet extension.
9641 [Steve Henson]
9642
9643 *) Add LinuxPPC support.
9644 [Jeff Dubrule <igor@pobox.org>]
9645
9646 *) Get rid of redundant BN file bn_mulw.c, and rename bn_div64 to
9647 bn_div_words in alpha.s.
9648 [Hannes Reinecke <H.Reinecke@hw.ac.uk> and Ben Laurie]
9649
9650 *) Make sure the RSA OAEP test is skipped under -DRSAref because
9651 OAEP isn't supported when OpenSSL is built with RSAref.
9652 [Ulf Moeller <ulf@fitug.de>]
9653
9654 *) Move definitions of IS_SET/IS_SEQUENCE inside crypto/asn1/asn1.h
9655 so they no longer are missing under -DNOPROTO.
9656 [Soren S. Jorvang <soren@t.dk>]
9657
9658
9659 Changes between 0.9.1c and 0.9.2b [22 Mar 1999]
9660
9661 *) Make SSL_get_peer_cert_chain() work in servers. Unfortunately, it still
9662 doesn't work when the session is reused. Coming soon!
9663 [Ben Laurie]
9664
9665 *) Fix a security hole, that allows sessions to be reused in the wrong
9666 context thus bypassing client cert protection! All software that uses
9667 client certs and session caches in multiple contexts NEEDS PATCHING to
9668 allow session reuse! A fuller solution is in the works.
9669 [Ben Laurie, problem pointed out by Holger Reif, Bodo Moeller (and ???)]
9670
9671 *) Some more source tree cleanups (removed obsolete files
9672 crypto/bf/asm/bf586.pl, test/test.txt and crypto/sha/asm/f.s; changed
9673 permission on "config" script to be executable) and a fix for the INSTALL
9674 document.
9675 [Ulf Moeller <ulf@fitug.de>]
9676
9677 *) Remove some legacy and erroneous uses of malloc, free instead of
9678 Malloc, Free.
9679 [Lennart Bang <lob@netstream.se>, with minor changes by Steve]
9680
9681 *) Make rsa_oaep_test return non-zero on error.
9682 [Ulf Moeller <ulf@fitug.de>]
9683
9684 *) Add support for native Solaris shared libraries. Configure
9685 solaris-sparc-sc4-pic, make, then run shlib/solaris-sc4.sh. It'd be nice
9686 if someone would make that last step automatic.
9687 [Matthias Loepfe <Matthias.Loepfe@AdNovum.CH>]
9688
9689 *) ctx_size was not built with the right compiler during "make links". Fixed.
9690 [Ben Laurie]
9691
9692 *) Change the meaning of 'ALL' in the cipher list. It now means "everything
9693 except NULL ciphers". This means the default cipher list will no longer
9694 enable NULL ciphers. They need to be specifically enabled e.g. with
9695 the string "DEFAULT:eNULL".
9696 [Steve Henson]
9697
9698 *) Fix to RSA private encryption routines: if p < q then it would
9699 occasionally produce an invalid result. This will only happen with
9700 externally generated keys because OpenSSL (and SSLeay) ensure p > q.
9701 [Steve Henson]
9702
9703 *) Be less restrictive and allow also `perl util/perlpath.pl
9704 /path/to/bin/perl' in addition to `perl util/perlpath.pl /path/to/bin',
9705 because this way one can also use an interpreter named `perl5' (which is
9706 usually the name of Perl 5.xxx on platforms where an Perl 4.x is still
9707 installed as `perl').
9708 [Matthias Loepfe <Matthias.Loepfe@adnovum.ch>]
9709
9710 *) Let util/clean-depend.pl work also with older Perl 5.00x versions.
9711 [Matthias Loepfe <Matthias.Loepfe@adnovum.ch>]
9712
9713 *) Fix Makefile.org so CC,CFLAG etc are passed to 'make links' add
9714 advapi32.lib to Win32 build and change the pem test comparision
9715 to fc.exe (thanks to Ulrich Kroener <kroneru@yahoo.com> for the
9716 suggestion). Fix misplaced ASNI prototypes and declarations in evp.h
9717 and crypto/des/ede_cbcm_enc.c.
9718 [Steve Henson]
9719
9720 *) DES quad checksum was broken on big-endian architectures. Fixed.
9721 [Ben Laurie]
9722
9723 *) Comment out two functions in bio.h that aren't implemented. Fix up the
9724 Win32 test batch file so it (might) work again. The Win32 test batch file
9725 is horrible: I feel ill....
9726 [Steve Henson]
9727
9728 *) Move various #ifdefs around so NO_SYSLOG, NO_DIRENT etc are now selected
9729 in e_os.h. Audit of header files to check ANSI and non ANSI
9730 sections: 10 functions were absent from non ANSI section and not exported
9731 from Windows DLLs. Fixed up libeay.num for new functions.
9732 [Steve Henson]
9733
9734 *) Make `openssl version' output lines consistent.
9735 [Ralf S. Engelschall]
9736
9737 *) Fix Win32 symbol export lists for BIO functions: Added
9738 BIO_get_ex_new_index, BIO_get_ex_num, BIO_get_ex_data and BIO_set_ex_data
9739 to ms/libeay{16,32}.def.
9740 [Ralf S. Engelschall]
9741
9742 *) Second round of fixing the OpenSSL perl/ stuff. It now at least compiled
9743 fine under Unix and passes some trivial tests I've now added. But the
9744 whole stuff is horribly incomplete, so a README.1ST with a disclaimer was
9745 added to make sure no one expects that this stuff really works in the
9746 OpenSSL 0.9.2 release. Additionally I've started to clean the XS sources
9747 up and fixed a few little bugs and inconsistencies in OpenSSL.{pm,xs} and
9748 openssl_bio.xs.
9749 [Ralf S. Engelschall]
9750
9751 *) Fix the generation of two part addresses in perl.
9752 [Kenji Miyake <kenji@miyake.org>, integrated by Ben Laurie]
9753
9754 *) Add config entry for Linux on MIPS.
9755 [John Tobey <jtobey@channel1.com>]
9756
9757 *) Make links whenever Configure is run, unless we are on Windoze.
9758 [Ben Laurie]
9759
9760 *) Permit extensions to be added to CRLs using crl_section in openssl.cnf.
9761 Currently only issuerAltName and AuthorityKeyIdentifier make any sense
9762 in CRLs.
9763 [Steve Henson]
9764
9765 *) Add a useful kludge to allow package maintainers to specify compiler and
9766 other platforms details on the command line without having to patch the
9767 Configure script everytime: One now can use ``perl Configure
9768 <id>:<details>'', i.e. platform ids are allowed to have details appended
9769 to them (seperated by colons). This is treated as there would be a static
9770 pre-configured entry in Configure's %table under key <id> with value
9771 <details> and ``perl Configure <id>'' is called. So, when you want to
9772 perform a quick test-compile under FreeBSD 3.1 with pgcc and without
9773 assembler stuff you can use ``perl Configure "FreeBSD-elf:pgcc:-O6:::"''
9774 now, which overrides the FreeBSD-elf entry on-the-fly.
9775 [Ralf S. Engelschall]
9776
9777 *) Disable new TLS1 ciphersuites by default: they aren't official yet.
9778 [Ben Laurie]
9779
9780 *) Allow DSO flags like -fpic, -fPIC, -KPIC etc. to be specified
9781 on the `perl Configure ...' command line. This way one can compile
9782 OpenSSL libraries with Position Independent Code (PIC) which is needed
9783 for linking it into DSOs.
9784 [Ralf S. Engelschall]
9785
9786 *) Remarkably, export ciphers were totally broken and no-one had noticed!
9787 Fixed.
9788 [Ben Laurie]
9789
9790 *) Cleaned up the LICENSE document: The official contact for any license
9791 questions now is the OpenSSL core team under openssl-core@openssl.org.
9792 And add a paragraph about the dual-license situation to make sure people
9793 recognize that _BOTH_ the OpenSSL license _AND_ the SSLeay license apply
9794 to the OpenSSL toolkit.
9795 [Ralf S. Engelschall]
9796
9797 *) General source tree makefile cleanups: Made `making xxx in yyy...'
9798 display consistent in the source tree and replaced `/bin/rm' by `rm'.
9799 Additonally cleaned up the `make links' target: Remove unnecessary
9800 semicolons, subsequent redundant removes, inline point.sh into mklink.sh
9801 to speed processing and no longer clutter the display with confusing
9802 stuff. Instead only the actually done links are displayed.
9803 [Ralf S. Engelschall]
9804
9805 *) Permit null encryption ciphersuites, used for authentication only. It used
9806 to be necessary to set the preprocessor define SSL_ALLOW_ENULL to do this.
9807 It is now necessary to set SSL_FORBID_ENULL to prevent the use of null
9808 encryption.
9809 [Ben Laurie]
9810
9811 *) Add a bunch of fixes to the PKCS#7 stuff. It used to sometimes reorder
9812 signed attributes when verifying signatures (this would break them),
9813 the detached data encoding was wrong and public keys obtained using
9814 X509_get_pubkey() weren't freed.
9815 [Steve Henson]
9816
9817 *) Add text documentation for the BUFFER functions. Also added a work around
9818 to a Win95 console bug. This was triggered by the password read stuff: the
9819 last character typed gets carried over to the next fread(). If you were
9820 generating a new cert request using 'req' for example then the last
9821 character of the passphrase would be CR which would then enter the first
9822 field as blank.
9823 [Steve Henson]
9824
9825 *) Added the new `Includes OpenSSL Cryptography Software' button as
9826 doc/openssl_button.{gif,html} which is similar in style to the old SSLeay
9827 button and can be used by applications based on OpenSSL to show the
9828 relationship to the OpenSSL project.
9829 [Ralf S. Engelschall]
9830
9831 *) Remove confusing variables in function signatures in files
9832 ssl/ssl_lib.c and ssl/ssl.h.
9833 [Lennart Bong <lob@kulthea.stacken.kth.se>]
9834
9835 *) Don't install bss_file.c under PREFIX/include/
9836 [Lennart Bong <lob@kulthea.stacken.kth.se>]
9837
9838 *) Get the Win32 compile working again. Modify mkdef.pl so it can handle
9839 functions that return function pointers and has support for NT specific
9840 stuff. Fix mk1mf.pl and VC-32.pl to support NT differences also. Various
9841 #ifdef WIN32 and WINNTs sprinkled about the place and some changes from
9842 unsigned to signed types: this was killing the Win32 compile.
9843 [Steve Henson]
9844
9845 *) Add new certificate file to stack functions,
9846 SSL_add_dir_cert_subjects_to_stack() and
9847 SSL_add_file_cert_subjects_to_stack(). These largely supplant
9848 SSL_load_client_CA_file(), and can be used to add multiple certs easily
9849 to a stack (usually this is then handed to SSL_CTX_set_client_CA_list()).
9850 This means that Apache-SSL and similar packages don't have to mess around
9851 to add as many CAs as they want to the preferred list.
9852 [Ben Laurie]
9853
9854 *) Experiment with doxygen documentation. Currently only partially applied to
9855 ssl/ssl_lib.c.
9856 See http://www.stack.nl/~dimitri/doxygen/index.html, and run doxygen with
9857 openssl.doxy as the configuration file.
9858 [Ben Laurie]
9859
9860 *) Get rid of remaining C++-style comments which strict C compilers hate.
9861 [Ralf S. Engelschall, pointed out by Carlos Amengual]
9862
9863 *) Changed BN_RECURSION in bn_mont.c to BN_RECURSION_MONT so it is not
9864 compiled in by default: it has problems with large keys.
9865 [Steve Henson]
9866
9867 *) Add a bunch of SSL_xxx() functions for configuring the temporary RSA and
9868 DH private keys and/or callback functions which directly correspond to
9869 their SSL_CTX_xxx() counterparts but work on a per-connection basis. This
9870 is needed for applications which have to configure certificates on a
9871 per-connection basis (e.g. Apache+mod_ssl) instead of a per-context basis
9872 (e.g. s_server).
9873 For the RSA certificate situation is makes no difference, but
9874 for the DSA certificate situation this fixes the "no shared cipher"
9875 problem where the OpenSSL cipher selection procedure failed because the
9876 temporary keys were not overtaken from the context and the API provided
9877 no way to reconfigure them.
9878 The new functions now let applications reconfigure the stuff and they
9879 are in detail: SSL_need_tmp_RSA, SSL_set_tmp_rsa, SSL_set_tmp_dh,
9880 SSL_set_tmp_rsa_callback and SSL_set_tmp_dh_callback. Additionally a new
9881 non-public-API function ssl_cert_instantiate() is used as a helper
9882 function and also to reduce code redundancy inside ssl_rsa.c.
9883 [Ralf S. Engelschall]
9884
9885 *) Move s_server -dcert and -dkey options out of the undocumented feature
9886 area because they are useful for the DSA situation and should be
9887 recognized by the users.
9888 [Ralf S. Engelschall]
9889
9890 *) Fix the cipher decision scheme for export ciphers: the export bits are
9891 *not* within SSL_MKEY_MASK or SSL_AUTH_MASK, they are within
9892 SSL_EXP_MASK. So, the original variable has to be used instead of the
9893 already masked variable.
9894 [Richard Levitte <levitte@stacken.kth.se>]
9895
9896 *) Fix 'port' variable from `int' to `unsigned int' in crypto/bio/b_sock.c
9897 [Richard Levitte <levitte@stacken.kth.se>]
9898
9899 *) Change type of another md_len variable in pk7_doit.c:PKCS7_dataFinal()
9900 from `int' to `unsigned int' because it's a length and initialized by
9901 EVP_DigestFinal() which expects an `unsigned int *'.
9902 [Richard Levitte <levitte@stacken.kth.se>]
9903
9904 *) Don't hard-code path to Perl interpreter on shebang line of Configure
9905 script. Instead use the usual Shell->Perl transition trick.
9906 [Ralf S. Engelschall]
9907
9908 *) Make `openssl x509 -noout -modulus' functional also for DSA certificates
9909 (in addition to RSA certificates) to match the behaviour of `openssl dsa
9910 -noout -modulus' as it's already the case for `openssl rsa -noout
9911 -modulus'. For RSA the -modulus is the real "modulus" while for DSA
9912 currently the public key is printed (a decision which was already done by
9913 `openssl dsa -modulus' in the past) which serves a similar purpose.
9914 Additionally the NO_RSA no longer completely removes the whole -modulus
9915 option; it now only avoids using the RSA stuff. Same applies to NO_DSA
9916 now, too.
9917 [Ralf S. Engelschall]
9918
9919 *) Add Arne Ansper's reliable BIO - this is an encrypted, block-digested
9920 BIO. See the source (crypto/evp/bio_ok.c) for more info.
9921 [Arne Ansper <arne@ats.cyber.ee>]
9922
9923 *) Dump the old yucky req code that tried (and failed) to allow raw OIDs
9924 to be added. Now both 'req' and 'ca' can use new objects defined in the
9925 config file.
9926 [Steve Henson]
9927
9928 *) Add cool BIO that does syslog (or event log on NT).
9929 [Arne Ansper <arne@ats.cyber.ee>, integrated by Ben Laurie]
9930
9931 *) Add support for new TLS ciphersuites, TLS_RSA_EXPORT56_WITH_RC4_56_MD5,
9932 TLS_RSA_EXPORT56_WITH_RC2_CBC_56_MD5 and
9933 TLS_RSA_EXPORT56_WITH_DES_CBC_SHA, as specified in "56-bit Export Cipher
9934 Suites For TLS", draft-ietf-tls-56-bit-ciphersuites-00.txt.
9935 [Ben Laurie]
9936
9937 *) Add preliminary config info for new extension code.
9938 [Steve Henson]
9939
9940 *) Make RSA_NO_PADDING really use no padding.
9941 [Ulf Moeller <ulf@fitug.de>]
9942
9943 *) Generate errors when private/public key check is done.
9944 [Ben Laurie]
9945
9946 *) Overhaul for 'crl' utility. New function X509_CRL_print. Partial support
9947 for some CRL extensions and new objects added.
9948 [Steve Henson]
9949
9950 *) Really fix the ASN1 IMPLICIT bug this time... Partial support for private
9951 key usage extension and fuller support for authority key id.
9952 [Steve Henson]
9953
9954 *) Add OAEP encryption for the OpenSSL crypto library. OAEP is the improved
9955 padding method for RSA, which is recommended for new applications in PKCS
9956 #1 v2.0 (RFC 2437, October 1998).
9957 OAEP (Optimal Asymmetric Encryption Padding) has better theoretical
9958 foundations than the ad-hoc padding used in PKCS #1 v1.5. It is secure
9959 against Bleichbacher's attack on RSA.
9960 [Ulf Moeller <ulf@fitug.de>, reformatted, corrected and integrated by
9961 Ben Laurie]
9962
9963 *) Updates to the new SSL compression code
9964 [Eric A. Young, (from changes to C2Net SSLeay, integrated by Mark Cox)]
9965
9966 *) Fix so that the version number in the master secret, when passed
9967 via RSA, checks that if TLS was proposed, but we roll back to SSLv3
9968 (because the server will not accept higher), that the version number
9969 is 0x03,0x01, not 0x03,0x00
9970 [Eric A. Young, (from changes to C2Net SSLeay, integrated by Mark Cox)]
9971
9972 *) Run extensive memory leak checks on SSL apps. Fixed *lots* of memory
9973 leaks in ssl/ relating to new X509_get_pubkey() behaviour. Also fixes
9974 in apps/ and an unrelated leak in crypto/dsa/dsa_vrf.c
9975 [Steve Henson]
9976
9977 *) Support for RAW extensions where an arbitrary extension can be
9978 created by including its DER encoding. See apps/openssl.cnf for
9979 an example.
9980 [Steve Henson]
9981
9982 *) Make sure latest Perl versions don't interpret some generated C array
9983 code as Perl array code in the crypto/err/err_genc.pl script.
9984 [Lars Weber <3weber@informatik.uni-hamburg.de>]
9985
9986 *) Modify ms/do_ms.bat to not generate assembly language makefiles since
9987 not many people have the assembler. Various Win32 compilation fixes and
9988 update to the INSTALL.W32 file with (hopefully) more accurate Win32
9989 build instructions.
9990 [Steve Henson]
9991
9992 *) Modify configure script 'Configure' to automatically create crypto/date.h
9993 file under Win32 and also build pem.h from pem.org. New script
9994 util/mkfiles.pl to create the MINFO file on environments that can't do a
9995 'make files': perl util/mkfiles.pl >MINFO should work.
9996 [Steve Henson]
9997
9998 *) Major rework of DES function declarations, in the pursuit of correctness
9999 and purity. As a result, many evil casts evaporated, and some weirdness,
10000 too. You may find this causes warnings in your code. Zapping your evil
10001 casts will probably fix them. Mostly.
10002 [Ben Laurie]
10003
10004 *) Fix for a typo in asn1.h. Bug fix to object creation script
10005 obj_dat.pl. It considered a zero in an object definition to mean
10006 "end of object": none of the objects in objects.h have any zeros
10007 so it wasn't spotted.
10008 [Steve Henson, reported by Erwann ABALEA <eabalea@certplus.com>]
10009
10010 *) Add support for Triple DES Cipher Block Chaining with Output Feedback
10011 Masking (CBCM). In the absence of test vectors, the best I have been able
10012 to do is check that the decrypt undoes the encrypt, so far. Send me test
10013 vectors if you have them.
10014 [Ben Laurie]
10015
10016 *) Correct calculation of key length for export ciphers (too much space was
10017 allocated for null ciphers). This has not been tested!
10018 [Ben Laurie]
10019
10020 *) Modifications to the mkdef.pl for Win32 DEF file creation. The usage
10021 message is now correct (it understands "crypto" and "ssl" on its
10022 command line). There is also now an "update" option. This will update
10023 the util/ssleay.num and util/libeay.num files with any new functions.
10024 If you do a:
10025 perl util/mkdef.pl crypto ssl update
10026 it will update them.
10027 [Steve Henson]
10028
10029 *) Overhauled the Perl interface (perl/*):
10030 - ported BN stuff to OpenSSL's different BN library
10031 - made the perl/ source tree CVS-aware
10032 - renamed the package from SSLeay to OpenSSL (the files still contain
10033 their history because I've copied them in the repository)
10034 - removed obsolete files (the test scripts will be replaced
10035 by better Test::Harness variants in the future)
10036 [Ralf S. Engelschall]
10037
10038 *) First cut for a very conservative source tree cleanup:
10039 1. merge various obsolete readme texts into doc/ssleay.txt
10040 where we collect the old documents and readme texts.
10041 2. remove the first part of files where I'm already sure that we no
10042 longer need them because of three reasons: either they are just temporary
10043 files which were left by Eric or they are preserved original files where
10044 I've verified that the diff is also available in the CVS via "cvs diff
10045 -rSSLeay_0_8_1b" or they were renamed (as it was definitely the case for
10046 the crypto/md/ stuff).
10047 [Ralf S. Engelschall]
10048
10049 *) More extension code. Incomplete support for subject and issuer alt
10050 name, issuer and authority key id. Change the i2v function parameters
10051 and add an extra 'crl' parameter in the X509V3_CTX structure: guess
10052 what that's for :-) Fix to ASN1 macro which messed up
10053 IMPLICIT tag and add f_enum.c which adds a2i, i2a for ENUMERATED.
10054 [Steve Henson]
10055
10056 *) Preliminary support for ENUMERATED type. This is largely copied from the
10057 INTEGER code.
10058 [Steve Henson]
10059
10060 *) Add new function, EVP_MD_CTX_copy() to replace frequent use of memcpy.
10061 [Eric A. Young, (from changes to C2Net SSLeay, integrated by Mark Cox)]
10062
10063 *) Make sure `make rehash' target really finds the `openssl' program.
10064 [Ralf S. Engelschall, Matthias Loepfe <Matthias.Loepfe@adnovum.ch>]
10065
10066 *) Squeeze another 7% of speed out of MD5 assembler, at least on a P2. I'd
10067 like to hear about it if this slows down other processors.
10068 [Ben Laurie]
10069
10070 *) Add CygWin32 platform information to Configure script.
10071 [Alan Batie <batie@aahz.jf.intel.com>]
10072
10073 *) Fixed ms/32all.bat script: `no_asm' -> `no-asm'
10074 [Rainer W. Gerling <gerling@mpg-gv.mpg.de>]
10075
10076 *) New program nseq to manipulate netscape certificate sequences
10077 [Steve Henson]
10078
10079 *) Modify crl2pkcs7 so it supports multiple -certfile arguments. Fix a
10080 few typos.
10081 [Steve Henson]
10082
10083 *) Fixes to BN code. Previously the default was to define BN_RECURSION
10084 but the BN code had some problems that would cause failures when
10085 doing certificate verification and some other functions.
10086 [Eric A. Young, (from changes to C2Net SSLeay, integrated by Mark Cox)]
10087
10088 *) Add ASN1 and PEM code to support netscape certificate sequences.
10089 [Steve Henson]
10090
10091 *) Add ASN1 and PEM code to support netscape certificate sequences.
10092 [Steve Henson]
10093
10094 *) Add several PKIX and private extended key usage OIDs.
10095 [Steve Henson]
10096
10097 *) Modify the 'ca' program to handle the new extension code. Modify
10098 openssl.cnf for new extension format, add comments.
10099 [Steve Henson]
10100
10101 *) More X509 V3 changes. Fix typo in v3_bitstr.c. Add support to 'req'
10102 and add a sample to openssl.cnf so req -x509 now adds appropriate
10103 CA extensions.
10104 [Steve Henson]
10105
10106 *) Continued X509 V3 changes. Add to other makefiles, integrate with the
10107 error code, add initial support to X509_print() and x509 application.
10108 [Steve Henson]
10109
10110 *) Takes a deep breath and start addding X509 V3 extension support code. Add
10111 files in crypto/x509v3. Move original stuff to crypto/x509v3/old. All this
10112 stuff is currently isolated and isn't even compiled yet.
10113 [Steve Henson]
10114
10115 *) Continuing patches for GeneralizedTime. Fix up certificate and CRL
10116 ASN1 to use ASN1_TIME and modify print routines to use ASN1_TIME_print.
10117 Removed the versions check from X509 routines when loading extensions:
10118 this allows certain broken certificates that don't set the version
10119 properly to be processed.
10120 [Steve Henson]
10121
10122 *) Deal with irritating shit to do with dependencies, in YAAHW (Yet Another
10123 Ad Hoc Way) - Makefile.ssls now all contain local dependencies, which
10124 can still be regenerated with "make depend".
10125 [Ben Laurie]
10126
10127 *) Spelling mistake in C version of CAST-128.
10128 [Ben Laurie, reported by Jeremy Hylton <jeremy@cnri.reston.va.us>]
10129
10130 *) Changes to the error generation code. The perl script err-code.pl
10131 now reads in the old error codes and retains the old numbers, only
10132 adding new ones if necessary. It also only changes the .err files if new
10133 codes are added. The makefiles have been modified to only insert errors
10134 when needed (to avoid needlessly modifying header files). This is done
10135 by only inserting errors if the .err file is newer than the auto generated
10136 C file. To rebuild all the error codes from scratch (the old behaviour)
10137 either modify crypto/Makefile.ssl to pass the -regen flag to err_code.pl
10138 or delete all the .err files.
10139 [Steve Henson]
10140
10141 *) CAST-128 was incorrectly implemented for short keys. The C version has
10142 been fixed, but is untested. The assembler versions are also fixed, but
10143 new assembler HAS NOT BEEN GENERATED FOR WIN32 - the Makefile needs fixing
10144 to regenerate it if needed.
10145 [Ben Laurie, reported (with fix for C version) by Jun-ichiro itojun
10146 Hagino <itojun@kame.net>]
10147
10148 *) File was opened incorrectly in randfile.c.
10149 [Ulf Möller <ulf@fitug.de>]
10150
10151 *) Beginning of support for GeneralizedTime. d2i, i2d, check and print
10152 functions. Also ASN1_TIME suite which is a CHOICE of UTCTime or
10153 GeneralizedTime. ASN1_TIME is the proper type used in certificates et
10154 al: it's just almost always a UTCTime. Note this patch adds new error
10155 codes so do a "make errors" if there are problems.
10156 [Steve Henson]
10157
10158 *) Correct Linux 1 recognition in config.
10159 [Ulf Möller <ulf@fitug.de>]
10160
10161 *) Remove pointless MD5 hash when using DSA keys in ca.
10162 [Anonymous <nobody@replay.com>]
10163
10164 *) Generate an error if given an empty string as a cert directory. Also
10165 generate an error if handed NULL (previously returned 0 to indicate an
10166 error, but didn't set one).
10167 [Ben Laurie, reported by Anonymous <nobody@replay.com>]
10168
10169 *) Add prototypes to SSL methods. Make SSL_write's buffer const, at last.
10170 [Ben Laurie]
10171
10172 *) Fix the dummy function BN_ref_mod_exp() in rsaref.c to have the correct
10173 parameters. This was causing a warning which killed off the Win32 compile.
10174 [Steve Henson]
10175
10176 *) Remove C++ style comments from crypto/bn/bn_local.h.
10177 [Neil Costigan <neil.costigan@celocom.com>]
10178
10179 *) The function OBJ_txt2nid was broken. It was supposed to return a nid
10180 based on a text string, looking up short and long names and finally
10181 "dot" format. The "dot" format stuff didn't work. Added new function
10182 OBJ_txt2obj to do the same but return an ASN1_OBJECT and rewrote
10183 OBJ_txt2nid to use it. OBJ_txt2obj can also return objects even if the
10184 OID is not part of the table.
10185 [Steve Henson]
10186
10187 *) Add prototypes to X509 lookup/verify methods, fixing a bug in
10188 X509_LOOKUP_by_alias().
10189 [Ben Laurie]
10190
10191 *) Sort openssl functions by name.
10192 [Ben Laurie]
10193
10194 *) Get the gendsa program working (hopefully) and add it to app list. Remove
10195 encryption from sample DSA keys (in case anyone is interested the password
10196 was "1234").
10197 [Steve Henson]
10198
10199 *) Make _all_ *_free functions accept a NULL pointer.
10200 [Frans Heymans <fheymans@isaserver.be>]
10201
10202 *) If a DH key is generated in s3_srvr.c, don't blow it by trying to use
10203 NULL pointers.
10204 [Anonymous <nobody@replay.com>]
10205
10206 *) s_server should send the CAfile as acceptable CAs, not its own cert.
10207 [Bodo Moeller <3moeller@informatik.uni-hamburg.de>]
10208
10209 *) Don't blow it for numeric -newkey arguments to apps/req.
10210 [Bodo Moeller <3moeller@informatik.uni-hamburg.de>]
10211
10212 *) Temp key "for export" tests were wrong in s3_srvr.c.
10213 [Anonymous <nobody@replay.com>]
10214
10215 *) Add prototype for temp key callback functions
10216 SSL_CTX_set_tmp_{rsa,dh}_callback().
10217 [Ben Laurie]
10218
10219 *) Make DH_free() tolerate being passed a NULL pointer (like RSA_free() and
10220 DSA_free()). Make X509_PUBKEY_set() check for errors in d2i_PublicKey().
10221 [Steve Henson]
10222
10223 *) X509_name_add_entry() freed the wrong thing after an error.
10224 [Arne Ansper <arne@ats.cyber.ee>]
10225
10226 *) rsa_eay.c would attempt to free a NULL context.
10227 [Arne Ansper <arne@ats.cyber.ee>]
10228
10229 *) BIO_s_socket() had a broken should_retry() on Windoze.
10230 [Arne Ansper <arne@ats.cyber.ee>]
10231
10232 *) BIO_f_buffer() didn't pass on BIO_CTRL_FLUSH.
10233 [Arne Ansper <arne@ats.cyber.ee>]
10234
10235 *) Make sure the already existing X509_STORE->depth variable is initialized
10236 in X509_STORE_new(), but document the fact that this variable is still
10237 unused in the certificate verification process.
10238 [Ralf S. Engelschall]
10239
10240 *) Fix the various library and apps files to free up pkeys obtained from
10241 X509_PUBKEY_get() et al. Also allow x509.c to handle netscape extensions.
10242 [Steve Henson]
10243
10244 *) Fix reference counting in X509_PUBKEY_get(). This makes
10245 demos/maurice/example2.c work, amongst others, probably.
10246 [Steve Henson and Ben Laurie]
10247
10248 *) First cut of a cleanup for apps/. First the `ssleay' program is now named
10249 `openssl' and second, the shortcut symlinks for the `openssl <command>'
10250 are no longer created. This way we have a single and consistent command
10251 line interface `openssl <command>', similar to `cvs <command>'.
10252 [Ralf S. Engelschall, Paul Sutton and Ben Laurie]
10253
10254 *) ca.c: move test for DSA keys inside #ifndef NO_DSA. Make pubkey
10255 BIT STRING wrapper always have zero unused bits.
10256 [Steve Henson]
10257
10258 *) Add CA.pl, perl version of CA.sh, add extended key usage OID.
10259 [Steve Henson]
10260
10261 *) Make the top-level INSTALL documentation easier to understand.
10262 [Paul Sutton]
10263
10264 *) Makefiles updated to exit if an error occurs in a sub-directory
10265 make (including if user presses ^C) [Paul Sutton]
10266
10267 *) Make Montgomery context stuff explicit in RSA data structure.
10268 [Ben Laurie]
10269
10270 *) Fix build order of pem and err to allow for generated pem.h.
10271 [Ben Laurie]
10272
10273 *) Fix renumbering bug in X509_NAME_delete_entry().
10274 [Ben Laurie]
10275
10276 *) Enhanced the err-ins.pl script so it makes the error library number
10277 global and can add a library name. This is needed for external ASN1 and
10278 other error libraries.
10279 [Steve Henson]
10280
10281 *) Fixed sk_insert which never worked properly.
10282 [Steve Henson]
10283
10284 *) Fix ASN1 macros so they can handle indefinite length construted
10285 EXPLICIT tags. Some non standard certificates use these: they can now
10286 be read in.
10287 [Steve Henson]
10288
10289 *) Merged the various old/obsolete SSLeay documentation files (doc/xxx.doc)
10290 into a single doc/ssleay.txt bundle. This way the information is still
10291 preserved but no longer messes up this directory. Now it's new room for
10292 the new set of documenation files.
10293 [Ralf S. Engelschall]
10294
10295 *) SETs were incorrectly DER encoded. This was a major pain, because they
10296 shared code with SEQUENCEs, which aren't coded the same. This means that
10297 almost everything to do with SETs or SEQUENCEs has either changed name or
10298 number of arguments.
10299 [Ben Laurie, based on a partial fix by GP Jayan <gp@nsj.co.jp>]
10300
10301 *) Fix test data to work with the above.
10302 [Ben Laurie]
10303
10304 *) Fix the RSA header declarations that hid a bug I fixed in 0.9.0b but
10305 was already fixed by Eric for 0.9.1 it seems.
10306 [Ben Laurie - pointed out by Ulf Möller <ulf@fitug.de>]
10307
10308 *) Autodetect FreeBSD3.
10309 [Ben Laurie]
10310
10311 *) Fix various bugs in Configure. This affects the following platforms:
10312 nextstep
10313 ncr-scde
10314 unixware-2.0
10315 unixware-2.0-pentium
10316 sco5-cc.
10317 [Ben Laurie]
10318
10319 *) Eliminate generated files from CVS. Reorder tests to regenerate files
10320 before they are needed.
10321 [Ben Laurie]
10322
10323 *) Generate Makefile.ssl from Makefile.org (to keep CVS happy).
10324 [Ben Laurie]
10325
10326
10327 Changes between 0.9.1b and 0.9.1c [23-Dec-1998]
10328
10329 *) Added OPENSSL_VERSION_NUMBER to crypto/crypto.h and
10330 changed SSLeay to OpenSSL in version strings.
10331 [Ralf S. Engelschall]
10332
10333 *) Some fixups to the top-level documents.
10334 [Paul Sutton]
10335
10336 *) Fixed the nasty bug where rsaref.h was not found under compile-time
10337 because the symlink to include/ was missing.
10338 [Ralf S. Engelschall]
10339
10340 *) Incorporated the popular no-RSA/DSA-only patches
10341 which allow to compile a RSA-free SSLeay.
10342 [Andrew Cooke / Interrader Ldt., Ralf S. Engelschall]
10343
10344 *) Fixed nasty rehash problem under `make -f Makefile.ssl links'
10345 when "ssleay" is still not found.
10346 [Ralf S. Engelschall]
10347
10348 *) Added more platforms to Configure: Cray T3E, HPUX 11,
10349 [Ralf S. Engelschall, Beckmann <beckman@acl.lanl.gov>]
10350
10351 *) Updated the README file.
10352 [Ralf S. Engelschall]
10353
10354 *) Added various .cvsignore files in the CVS repository subdirs
10355 to make a "cvs update" really silent.
10356 [Ralf S. Engelschall]
10357
10358 *) Recompiled the error-definition header files and added
10359 missing symbols to the Win32 linker tables.
10360 [Ralf S. Engelschall]
10361
10362 *) Cleaned up the top-level documents;
10363 o new files: CHANGES and LICENSE
10364 o merged VERSION, HISTORY* and README* files a CHANGES.SSLeay
10365 o merged COPYRIGHT into LICENSE
10366 o removed obsolete TODO file
10367 o renamed MICROSOFT to INSTALL.W32
10368 [Ralf S. Engelschall]
10369
10370 *) Removed dummy files from the 0.9.1b source tree:
10371 crypto/asn1/x crypto/bio/cd crypto/bio/fg crypto/bio/grep crypto/bio/vi
10372 crypto/bn/asm/......add.c crypto/bn/asm/a.out crypto/dsa/f crypto/md5/f
10373 crypto/pem/gmon.out crypto/perlasm/f crypto/pkcs7/build crypto/rsa/f
10374 crypto/sha/asm/f crypto/threads/f ms/zzz ssl/f ssl/f.mak test/f
10375 util/f.mak util/pl/f util/pl/f.mak crypto/bf/bf_locl.old apps/f
10376 [Ralf S. Engelschall]
10377
10378 *) Added various platform portability fixes.
10379 [Mark J. Cox]
10380
10381 *) The Genesis of the OpenSSL rpject:
10382 We start with the latest (unreleased) SSLeay version 0.9.1b which Eric A.
10383 Young and Tim J. Hudson created while they were working for C2Net until
10384 summer 1998.
10385 [The OpenSSL Project]
10386
10387
10388 Changes between 0.9.0b and 0.9.1b [not released]
10389
10390 *) Updated a few CA certificates under certs/
10391 [Eric A. Young]
10392
10393 *) Changed some BIGNUM api stuff.
10394 [Eric A. Young]
10395
10396 *) Various platform ports: OpenBSD, Ultrix, IRIX 64bit, NetBSD,
10397 DGUX x86, Linux Alpha, etc.
10398 [Eric A. Young]
10399
10400 *) New COMP library [crypto/comp/] for SSL Record Layer Compression:
10401 RLE (dummy implemented) and ZLIB (really implemented when ZLIB is
10402 available).
10403 [Eric A. Young]
10404
10405 *) Add -strparse option to asn1pars program which parses nested
10406 binary structures
10407 [Dr Stephen Henson <shenson@bigfoot.com>]
10408
10409 *) Added "oid_file" to ssleay.cnf for "ca" and "req" programs.
10410 [Eric A. Young]
10411
10412 *) DSA fix for "ca" program.
10413 [Eric A. Young]
10414
10415 *) Added "-genkey" option to "dsaparam" program.
10416 [Eric A. Young]
10417
10418 *) Added RIPE MD160 (rmd160) message digest.
10419 [Eric A. Young]
10420
10421 *) Added -a (all) option to "ssleay version" command.
10422 [Eric A. Young]
10423
10424 *) Added PLATFORM define which is the id given to Configure.
10425 [Eric A. Young]
10426
10427 *) Added MemCheck_XXXX functions to crypto/mem.c for memory checking.
10428 [Eric A. Young]
10429
10430 *) Extended the ASN.1 parser routines.
10431 [Eric A. Young]
10432
10433 *) Extended BIO routines to support REUSEADDR, seek, tell, etc.
10434 [Eric A. Young]
10435
10436 *) Added a BN_CTX to the BN library.
10437 [Eric A. Young]
10438
10439 *) Fixed the weak key values in DES library
10440 [Eric A. Young]
10441
10442 *) Changed API in EVP library for cipher aliases.
10443 [Eric A. Young]
10444
10445 *) Added support for RC2/64bit cipher.
10446 [Eric A. Young]
10447
10448 *) Converted the lhash library to the crypto/mem.c functions.
10449 [Eric A. Young]
10450
10451 *) Added more recognized ASN.1 object ids.
10452 [Eric A. Young]
10453
10454 *) Added more RSA padding checks for SSL/TLS.
10455 [Eric A. Young]
10456
10457 *) Added BIO proxy/filter functionality.
10458 [Eric A. Young]
10459
10460 *) Added extra_certs to SSL_CTX which can be used
10461 send extra CA certificates to the client in the CA cert chain sending
10462 process. It can be configured with SSL_CTX_add_extra_chain_cert().
10463 [Eric A. Young]
10464
10465 *) Now Fortezza is denied in the authentication phase because
10466 this is key exchange mechanism is not supported by SSLeay at all.
10467 [Eric A. Young]
10468
10469 *) Additional PKCS1 checks.
10470 [Eric A. Young]
10471
10472 *) Support the string "TLSv1" for all TLS v1 ciphers.
10473 [Eric A. Young]
10474
10475 *) Added function SSL_get_ex_data_X509_STORE_CTX_idx() which gives the
10476 ex_data index of the SSL context in the X509_STORE_CTX ex_data.
10477 [Eric A. Young]
10478
10479 *) Fixed a few memory leaks.
10480 [Eric A. Young]
10481
10482 *) Fixed various code and comment typos.
10483 [Eric A. Young]
10484
10485 *) A minor bug in ssl/s3_clnt.c where there would always be 4 0
10486 bytes sent in the client random.
10487 [Edward Bishop <ebishop@spyglass.com>]
10488