5 Changes between 0.9.8k and 0.9.9 [xx XXX xxxx]
7 *) Update Gost ENGINE to support parameter files.
8 [Victor B. Wagner <vitus@cryptocom.ru>]
10 *) Support GeneralizedTime in ca utility.
11 [Oliver Martin <oliver@volatilevoid.net>, Steve Henson]
13 *) Enhance the hash format used for certificate directory links. The new
14 form uses the canonical encoding (meaning equivalent names will work
15 even if they aren't identical) and uses SHA1 instead of MD5. This form
16 is incompatible with the older format and as a result c_rehash should
17 be used to rebuild symbolic links.
20 *) Make PKCS#8 the default write format for private keys, replacing the
21 traditional format. This form is standardised, more secure and doesn't
22 include an implicit MD5 dependency.
25 *) Add a $gcc_devteam_warn option to Configure. The idea is that any code
26 committed to OpenSSL should pass this lot as a minimum.
29 *) Add session ticket override functionality for use by EAP-FAST.
30 [Jouni Malinen <j@w1.fi>]
32 *) Modify HMAC functions to return a value. Since these can be implemented
33 in an ENGINE errors can occur.
36 *) Type-checked OBJ_bsearch_ex.
39 *) Type-checked OBJ_bsearch. Also some constification necessitated
40 by type-checking. Still to come: TXT_DB, bsearch(?),
41 OBJ_bsearch_ex, qsort, CRYPTO_EX_DATA, ASN1_VALUE, ASN1_STRING,
45 *) New function OPENSSL_gmtime_adj() to add a specific number of days and
46 seconds to a tm structure directly, instead of going through OS
47 specific date routines. This avoids any issues with OS routines such
48 as the year 2038 bug. New *_adj() functions for ASN1 time structures
49 and X509_time_adj_ex() to cover the extended range. The existing
50 X509_time_adj() is still usable and will no longer have any date issues.
53 *) Delta CRL support. New use deltas option which will attempt to locate
54 and search any appropriate delta CRLs available.
56 This work was sponsored by Google.
59 *) Support for CRLs partitioned by reason code. Reorganise CRL processing
60 code and add additional score elements. Validate alternate CRL paths
61 as part of the CRL checking and indicate a new error "CRL path validation
62 error" in this case. Applications wanting additional details can use
63 the verify callback and check the new "parent" field. If this is not
64 NULL CRL path validation is taking place. Existing applications wont
65 see this because it requires extended CRL support which is off by
68 This work was sponsored by Google.
71 *) Support for freshest CRL extension.
73 This work was sponsored by Google.
76 *) Initial indirect CRL support. Currently only supported in the CRLs
77 passed directly and not via lookup. Process certificate issuer
78 CRL entry extension and lookup CRL entries by bother issuer name
79 and serial number. Check and process CRL issuer entry in IDP extension.
81 This work was sponsored by Google.
84 *) Add support for distinct certificate and CRL paths. The CRL issuer
85 certificate is validated separately in this case. Only enabled if
86 an extended CRL support flag is set: this flag will enable additional
87 CRL functionality in future.
89 This work was sponsored by Google.
92 *) Add support for policy mappings extension.
94 This work was sponsored by Google.
97 *) Fixes to pathlength constraint, self issued certificate handling,
98 policy processing to align with RFC3280 and PKITS tests.
100 This work was sponsored by Google.
103 *) Support for name constraints certificate extension. DN, email, DNS
104 and URI types are currently supported.
106 This work was sponsored by Google.
109 *) To cater for systems that provide a pointer-based thread ID rather
110 than numeric, deprecate the current numeric thread ID mechanism and
111 replace it with a structure and associated callback type. This
112 mechanism allows a numeric "hash" to be extracted from a thread ID in
113 either case, and on platforms where pointers are larger than 'long',
114 mixing is done to help ensure the numeric 'hash' is usable even if it
115 can't be guaranteed unique. The default mechanism is to use "&errno"
116 as a pointer-based thread ID to distinguish between threads.
118 Applications that want to provide their own thread IDs should now use
119 CRYPTO_THREADID_set_callback() to register a callback that will call
120 either CRYPTO_THREADID_set_numeric() or CRYPTO_THREADID_set_pointer().
122 Note that ERR_remove_state() is now deprecated, because it is tied
123 to the assumption that thread IDs are numeric. ERR_remove_state(0)
124 to free the current thread's error state should be replaced by
125 ERR_remove_thread_state(NULL).
127 (This new approach replaces the functions CRYPTO_set_idptr_callback(),
128 CRYPTO_get_idptr_callback(), and CRYPTO_thread_idptr() that existed in
129 OpenSSL 0.9.9-dev between June 2006 and August 2008. Also, if an
130 application was previously providing a numeric thread callback that
131 was inappropriate for distinguishing threads, then uniqueness might
132 have been obtained with &errno that happened immediately in the
133 intermediate development versions of OpenSSL; this is no longer the
134 case, the numeric thread callback will now override the automatic use
136 [Geoff Thorpe, with help from Bodo Moeller]
138 *) Initial support for different CRL issuing certificates. This covers a
139 simple case where the self issued certificates in the chain exist and
140 the real CRL issuer is higher in the existing chain.
142 This work was sponsored by Google.
145 *) Removed effectively defunct crypto/store from the build.
148 *) Revamp of STACK to provide stronger type-checking. Still to come:
149 TXT_DB, bsearch(?), OBJ_bsearch, qsort, CRYPTO_EX_DATA, ASN1_VALUE,
150 ASN1_STRING, CONF_VALUE.
153 *) Add a new SSL_MODE_RELEASE_BUFFERS mode flag to release unused buffer
154 RAM on SSL connections. This option can save about 34k per idle SSL.
157 *) Revamp of LHASH to provide stronger type-checking. Still to come:
158 STACK, TXT_DB, bsearch, qsort.
161 *) Initial support for Cryptographic Message Syntax (aka CMS) based
162 on RFC3850, RFC3851 and RFC3852. New cms directory and cms utility,
163 support for data, signedData, compressedData, digestedData and
164 encryptedData, envelopedData types included. Scripts to check against
165 RFC4134 examples draft and interop and consistency checks of many
166 content types and variants.
169 *) Add options to enc utility to support use of zlib compression BIO.
172 *) Extend mk1mf to support importing of options and assembly language
173 files from Configure script, currently only included in VC-WIN32.
174 The assembly language rules can now optionally generate the source
175 files from the associated perl scripts.
178 *) Implement remaining functionality needed to support GOST ciphersuites.
179 Interop testing has been performed using CryptoPro implementations.
180 [Victor B. Wagner <vitus@cryptocom.ru>]
182 *) s390x assembler pack.
185 *) ARMv4 assembler pack. ARMv4 refers to v4 and later ISA, not CPU
189 *) Implement Opaque PRF Input TLS extension as specified in
190 draft-rescorla-tls-opaque-prf-input-00.txt. Since this is not an
191 official specification yet and no extension type assignment by
192 IANA exists, this extension (for now) will have to be explicitly
193 enabled when building OpenSSL by providing the extension number
194 to use. For example, specify an option
196 -DTLSEXT_TYPE_opaque_prf_input=0x9527
198 to the "config" or "Configure" script to enable the extension,
199 assuming extension number 0x9527 (which is a completely arbitrary
200 and unofficial assignment based on the MD5 hash of the Internet
201 Draft). Note that by doing so, you potentially lose
202 interoperability with other TLS implementations since these might
203 be using the same extension number for other purposes.
205 SSL_set_tlsext_opaque_prf_input(ssl, src, len) is used to set the
206 opaque PRF input value to use in the handshake. This will create
207 an interal copy of the length-'len' string at 'src', and will
208 return non-zero for success.
210 To get more control and flexibility, provide a callback function
213 SSL_CTX_set_tlsext_opaque_prf_input_callback(ctx, cb)
214 SSL_CTX_set_tlsext_opaque_prf_input_callback_arg(ctx, arg)
218 int (*cb)(SSL *, void *peerinput, size_t len, void *arg);
221 Callback function 'cb' will be called in handshakes, and is
222 expected to use SSL_set_tlsext_opaque_prf_input() as appropriate.
223 Argument 'arg' is for application purposes (the value as given to
224 SSL_CTX_set_tlsext_opaque_prf_input_callback_arg() will directly
225 be provided to the callback function). The callback function
226 has to return non-zero to report success: usually 1 to use opaque
227 PRF input just if possible, or 2 to enforce use of the opaque PRF
228 input. In the latter case, the library will abort the handshake
229 if opaque PRF input is not successfully negotiated.
231 Arguments 'peerinput' and 'len' given to the callback function
232 will always be NULL and 0 in the case of a client. A server will
233 see the client's opaque PRF input through these variables if
234 available (NULL and 0 otherwise). Note that if the server
235 provides an opaque PRF input, the length must be the same as the
236 length of the client's opaque PRF input.
238 Note that the callback function will only be called when creating
239 a new session (session resumption can resume whatever was
240 previously negotiated), and will not be called in SSL 2.0
241 handshakes; thus, SSL_CTX_set_options(ctx, SSL_OP_NO_SSLv2) or
242 SSL_set_options(ssl, SSL_OP_NO_SSLv2) is especially recommended
243 for applications that need to enforce opaque PRF input.
247 *) Update ssl code to support digests other than SHA1+MD5 for handshake
250 [Victor B. Wagner <vitus@cryptocom.ru>]
252 *) Add RFC4507 support to OpenSSL. This includes the corrections in
253 RFC4507bis. The encrypted ticket format is an encrypted encoded
254 SSL_SESSION structure, that way new session features are automatically
257 If a client application caches session in an SSL_SESSION structure
258 support is transparent because tickets are now stored in the encoded
261 The SSL_CTX structure automatically generates keys for ticket
262 protection in servers so again support should be possible
263 with no application modification.
265 If a client or server wishes to disable RFC4507 support then the option
266 SSL_OP_NO_TICKET can be set.
268 Add a TLS extension debugging callback to allow the contents of any client
269 or server extensions to be examined.
271 This work was sponsored by Google.
274 *) Final changes to avoid use of pointer pointer casts in OpenSSL.
275 OpenSSL should now compile cleanly on gcc 4.2
276 [Peter Hartley <pdh@utter.chaos.org.uk>, Steve Henson]
278 *) Update SSL library to use new EVP_PKEY MAC API. Include generic MAC
279 support including streaming MAC support: this is required for GOST
281 [Victor B. Wagner <vitus@cryptocom.ru>, Steve Henson]
283 *) Add option -stream to use PKCS#7 streaming in smime utility. New
284 function i2d_PKCS7_bio_stream() and PEM_write_PKCS7_bio_stream()
285 to output in BER and PEM format.
288 *) Experimental support for use of HMAC via EVP_PKEY interface. This
289 allows HMAC to be handled via the EVP_DigestSign*() interface. The
290 EVP_PKEY "key" in this case is the HMAC key, potentially allowing
291 ENGINE support for HMAC keys which are unextractable. New -mac and
292 -macopt options to dgst utility.
295 *) New option -sigopt to dgst utility. Update dgst to use
296 EVP_Digest{Sign,Verify}*. These two changes make it possible to use
297 alternative signing paramaters such as X9.31 or PSS in the dgst
301 *) Change ssl_cipher_apply_rule(), the internal function that does
302 the work each time a ciphersuite string requests enabling
303 ("foo+bar"), moving ("+foo+bar"), disabling ("-foo+bar", or
304 removing ("!foo+bar") a class of ciphersuites: Now it maintains
305 the order of disabled ciphersuites such that those ciphersuites
306 that most recently went from enabled to disabled not only stay
307 in order with respect to each other, but also have higher priority
308 than other disabled ciphersuites the next time ciphersuites are
311 This means that you can now say, e.g., "PSK:-PSK:HIGH" to enable
312 the same ciphersuites as with "HIGH" alone, but in a specific
313 order where the PSK ciphersuites come first (since they are the
314 most recently disabled ciphersuites when "HIGH" is parsed).
316 Also, change ssl_create_cipher_list() (using this new
317 funcionality) such that between otherwise identical
318 cihpersuites, ephemeral ECDH is preferred over ephemeral DH in
322 *) Change ssl_create_cipher_list() so that it automatically
323 arranges the ciphersuites in reasonable order before starting
324 to process the rule string. Thus, the definition for "DEFAULT"
325 (SSL_DEFAULT_CIPHER_LIST) now is just "ALL:!aNULL:!eNULL", but
326 remains equivalent to "AES:ALL:!aNULL:!eNULL:+aECDH:+kRSA:+RC4:@STRENGTH".
327 This makes it much easier to arrive at a reasonable default order
328 in applications for which anonymous ciphers are OK (meaning
329 that you can't actually use DEFAULT).
330 [Bodo Moeller; suggested by Victor Duchovni]
332 *) Split the SSL/TLS algorithm mask (as used for ciphersuite string
333 processing) into multiple integers instead of setting
334 "SSL_MKEY_MASK" bits, "SSL_AUTH_MASK" bits, "SSL_ENC_MASK",
335 "SSL_MAC_MASK", and "SSL_SSL_MASK" bits all in a single integer.
336 (These masks as well as the individual bit definitions are hidden
337 away into the non-exported interface ssl/ssl_locl.h, so this
338 change to the definition of the SSL_CIPHER structure shouldn't
339 affect applications.) This give us more bits for each of these
340 categories, so there is no longer a need to coagulate AES128 and
341 AES256 into a single algorithm bit, and to coagulate Camellia128
342 and Camellia256 into a single algorithm bit, which has led to all
345 Thus, among other things, the kludge introduced in 0.9.7m and
346 0.9.8e for masking out AES256 independently of AES128 or masking
347 out Camellia256 independently of AES256 is not needed here in 0.9.9.
349 With the change, we also introduce new ciphersuite aliases that
350 so far were missing: "AES128", "AES256", "CAMELLIA128", and
354 *) Add support for dsa-with-SHA224 and dsa-with-SHA256.
355 Use the leftmost N bytes of the signature input if the input is
356 larger than the prime q (with N being the size in bytes of q).
359 *) Very *very* experimental PKCS#7 streaming encoder support. Nothing uses
360 it yet and it is largely untested.
363 *) Add support for the ecdsa-with-SHA224/256/384/512 signature types.
366 *) Initial incomplete changes to avoid need for function casts in OpenSSL
367 some compilers (gcc 4.2 and later) reject their use. Safestack is
368 reimplemented. Update ASN1 to avoid use of legacy functions.
371 *) Win32/64 targets are linked with Winsock2.
374 *) Add an X509_CRL_METHOD structure to allow CRL processing to be redirected
375 to external functions. This can be used to increase CRL handling
376 efficiency especially when CRLs are very large by (for example) storing
377 the CRL revoked certificates in a database.
380 *) Overhaul of by_dir code. Add support for dynamic loading of CRLs so
381 new CRLs added to a directory can be used. New command line option
382 -verify_return_error to s_client and s_server. This causes real errors
383 to be returned by the verify callback instead of carrying on no matter
384 what. This reflects the way a "real world" verify callback would behave.
387 *) GOST engine, supporting several GOST algorithms and public key formats.
388 Kindly donated by Cryptocom.
391 *) Partial support for Issuing Distribution Point CRL extension. CRLs
392 partitioned by DP are handled but no indirect CRL or reason partitioning
393 (yet). Complete overhaul of CRL handling: now the most suitable CRL is
394 selected via a scoring technique which handles IDP and AKID in CRLs.
397 *) New X509_STORE_CTX callbacks lookup_crls() and lookup_certs() which
398 will ultimately be used for all verify operations: this will remove the
399 X509_STORE dependency on certificate verification and allow alternative
400 lookup methods. X509_STORE based implementations of these two callbacks.
403 *) Allow multiple CRLs to exist in an X509_STORE with matching issuer names.
404 Modify get_crl() to find a valid (unexpired) CRL if possible.
407 *) New function X509_CRL_match() to check if two CRLs are identical. Normally
408 this would be called X509_CRL_cmp() but that name is already used by
409 a function that just compares CRL issuer names. Cache several CRL
410 extensions in X509_CRL structure and cache CRLDP in X509.
413 *) Store a "canonical" representation of X509_NAME structure (ASN1 Name)
414 this maps equivalent X509_NAME structures into a consistent structure.
415 Name comparison can then be performed rapidly using memcmp().
418 *) Non-blocking OCSP request processing. Add -timeout option to ocsp
422 *) Allow digests to supply their own micalg string for S/MIME type using
423 the ctrl EVP_MD_CTRL_MICALG.
426 *) During PKCS7 signing pass the PKCS7 SignerInfo structure to the
427 EVP_PKEY_METHOD before and after signing via the EVP_PKEY_CTRL_PKCS7_SIGN
428 ctrl. It can then customise the structure before and/or after signing
432 *) New function OBJ_add_sigid() to allow application defined signature OIDs
433 to be added to OpenSSLs internal tables. New function OBJ_sigid_free()
434 to free up any added signature OIDs.
437 *) New functions EVP_CIPHER_do_all(), EVP_CIPHER_do_all_sorted(),
438 EVP_MD_do_all() and EVP_MD_do_all_sorted() to enumerate internal
439 digest and cipher tables. New options added to openssl utility:
440 list-message-digest-algorithms and list-cipher-algorithms.
443 *) Change the array representation of binary polynomials: the list
444 of degrees of non-zero coefficients is now terminated with -1.
445 Previously it was terminated with 0, which was also part of the
446 value; thus, the array representation was not applicable to
447 polynomials where t^0 has coefficient zero. This change makes
448 the array representation useful in a more general context.
451 *) Various modifications and fixes to SSL/TLS cipher string
452 handling. For ECC, the code now distinguishes between fixed ECDH
453 with RSA certificates on the one hand and with ECDSA certificates
454 on the other hand, since these are separate ciphersuites. The
455 unused code for Fortezza ciphersuites has been removed.
457 For consistency with EDH, ephemeral ECDH is now called "EECDH"
458 (not "ECDHE"). For consistency with the code for DH
459 certificates, use of ECDH certificates is now considered ECDH
460 authentication, not RSA or ECDSA authentication (the latter is
461 merely the CA's signing algorithm and not actively used in the
464 The temporary ciphersuite alias "ECCdraft" is no longer
465 available, and ECC ciphersuites are no longer excluded from "ALL"
466 and "DEFAULT". The following aliases now exist for RFC 4492
467 ciphersuites, most of these by analogy with the DH case:
469 kECDHr - ECDH cert, signed with RSA
470 kECDHe - ECDH cert, signed with ECDSA
471 kECDH - ECDH cert (signed with either RSA or ECDSA)
472 kEECDH - ephemeral ECDH
473 ECDH - ECDH cert or ephemeral ECDH
479 AECDH - anonymous ECDH
480 EECDH - non-anonymous ephemeral ECDH (equivalent to "kEECDH:-AECDH")
484 *) Add additional S/MIME capabilities for AES and GOST ciphers if supported.
485 Use correct micalg parameters depending on digest(s) in signed message.
488 *) Add engine support for EVP_PKEY_ASN1_METHOD. Add functions to process
489 an ENGINE asn1 method. Support ENGINE lookups in the ASN1 code.
492 *) Initial engine support for EVP_PKEY_METHOD. New functions to permit
493 an engine to register a method. Add ENGINE lookups for methods and
494 functional reference processing.
497 *) New functions EVP_Digest{Sign,Verify)*. These are enchance versions of
498 EVP_{Sign,Verify}* which allow an application to customise the signature
502 *) New -resign option to smime utility. This adds one or more signers
503 to an existing PKCS#7 signedData structure. Also -md option to use an
504 alternative message digest algorithm for signing.
507 *) Tidy up PKCS#7 routines and add new functions to make it easier to
508 create PKCS7 structures containing multiple signers. Update smime
509 application to support multiple signers.
512 *) New -macalg option to pkcs12 utility to allow setting of an alternative
516 *) Initial support for PKCS#5 v2.0 PRFs other than default SHA1 HMAC.
517 Reorganize PBE internals to lookup from a static table using NIDs,
518 add support for HMAC PBE OID translation. Add a EVP_CIPHER ctrl:
519 EVP_CTRL_PBE_PRF_NID this allows a cipher to specify an alternative
520 PRF which will be automatically used with PBES2.
523 *) Replace the algorithm specific calls to generate keys in "req" with the
527 *) Update PKCS#7 enveloped data routines to use new API. This is now
528 supported by any public key method supporting the encrypt operation. A
529 ctrl is added to allow the public key algorithm to examine or modify
530 the PKCS#7 RecipientInfo structure if it needs to: for RSA this is
534 *) Add a ctrl to asn1 method to allow a public key algorithm to express
535 a default digest type to use. In most cases this will be SHA1 but some
536 algorithms (such as GOST) need to specify an alternative digest. The
537 return value indicates how strong the prefernce is 1 means optional and
538 2 is mandatory (that is it is the only supported type). Modify
539 ASN1_item_sign() to accept a NULL digest argument to indicate it should
540 use the default md. Update openssl utilities to use the default digest
541 type for signing if it is not explicitly indicated.
544 *) Use OID cross reference table in ASN1_sign() and ASN1_verify(). New
545 EVP_MD flag EVP_MD_FLAG_PKEY_METHOD_SIGNATURE. This uses the relevant
546 signing method from the key type. This effectively removes the link
547 between digests and public key types.
550 *) Add an OID cross reference table and utility functions. Its purpose is to
551 translate between signature OIDs such as SHA1WithrsaEncryption and SHA1,
552 rsaEncryption. This will allow some of the algorithm specific hackery
553 needed to use the correct OID to be removed.
556 *) Remove algorithm specific dependencies when setting PKCS7_SIGNER_INFO
557 structures for PKCS7_sign(). They are now set up by the relevant public
561 *) Add provisional EC pkey method with support for ECDSA and ECDH.
564 *) Add support for key derivation (agreement) in the API, DH method and
568 *) Add DSA pkey method and DH pkey methods, extend DH ASN1 method to support
569 public and private key formats. As a side effect these add additional
570 command line functionality not previously available: DSA signatures can be
571 generated and verified using pkeyutl and DH key support and generation in
576 [Oliver Tappe <zooey@hirschkaefer.de>]
578 *) New make target "install_html_docs" installs HTML renditions of the
580 [Oliver Tappe <zooey@hirschkaefer.de>]
582 *) New utility "genpkey" this is analagous to "genrsa" etc except it can
583 generate keys for any algorithm. Extend and update EVP_PKEY_METHOD to
584 support key and parameter generation and add initial key generation
585 functionality for RSA.
588 *) Add functions for main EVP_PKEY_method operations. The undocumented
589 functions EVP_PKEY_{encrypt,decrypt} have been renamed to
590 EVP_PKEY_{encrypt,decrypt}_old.
593 *) Initial definitions for EVP_PKEY_METHOD. This will be a high level public
594 key API, doesn't do much yet.
597 *) New function EVP_PKEY_asn1_get0_info() to retrieve information about
598 public key algorithms. New option to openssl utility:
599 "list-public-key-algorithms" to print out info.
602 *) Implement the Supported Elliptic Curves Extension for
603 ECC ciphersuites from draft-ietf-tls-ecc-12.txt.
606 *) Don't free up OIDs in OBJ_cleanup() if they are in use by EVP_MD or
607 EVP_CIPHER structures to avoid later problems in EVP_cleanup().
610 *) New utilities pkey and pkeyparam. These are similar to algorithm specific
611 utilities such as rsa, dsa, dsaparam etc except they process any key
615 *) Transfer public key printing routines to EVP_PKEY_ASN1_METHOD. New
616 functions EVP_PKEY_print_public(), EVP_PKEY_print_private(),
617 EVP_PKEY_print_param() to print public key data from an EVP_PKEY
621 *) Initial support for pluggable public key ASN1.
622 De-spaghettify the public key ASN1 handling. Move public and private
623 key ASN1 handling to a new EVP_PKEY_ASN1_METHOD structure. Relocate
624 algorithm specific handling to a single module within the relevant
625 algorithm directory. Add functions to allow (near) opaque processing
626 of public and private key structures.
629 *) Implement the Supported Point Formats Extension for
630 ECC ciphersuites from draft-ietf-tls-ecc-12.txt.
633 *) Add initial support for RFC 4279 PSK TLS ciphersuites. Add members
634 for the psk identity [hint] and the psk callback functions to the
635 SSL_SESSION, SSL and SSL_CTX structure.
638 PSK-RC4-SHA, PSK-3DES-EDE-CBC-SHA, PSK-AES128-CBC-SHA,
642 SSL_CTX_use_psk_identity_hint
643 SSL_get_psk_identity_hint
645 SSL_use_psk_identity_hint
647 [Mika Kousa and Pasi Eronen of Nokia Corporation]
649 *) Add RFC 3161 compliant time stamp request creation, response generation
650 and response verification functionality.
651 [Zoltán Glózik <zglozik@opentsa.org>, The OpenTSA Project]
653 *) Add initial support for TLS extensions, specifically for the server_name
654 extension so far. The SSL_SESSION, SSL_CTX, and SSL data structures now
655 have new members for a host name. The SSL data structure has an
656 additional member SSL_CTX *initial_ctx so that new sessions can be
657 stored in that context to allow for session resumption, even after the
658 SSL has been switched to a new SSL_CTX in reaction to a client's
659 server_name extension.
661 New functions (subject to change):
664 SSL_get_servername_type()
667 New CTRL codes and macros (subject to change):
669 SSL_CTRL_SET_TLSEXT_SERVERNAME_CB
670 - SSL_CTX_set_tlsext_servername_callback()
671 SSL_CTRL_SET_TLSEXT_SERVERNAME_ARG
672 - SSL_CTX_set_tlsext_servername_arg()
673 SSL_CTRL_SET_TLSEXT_HOSTNAME - SSL_set_tlsext_host_name()
675 openssl s_client has a new '-servername ...' option.
677 openssl s_server has new options '-servername_host ...', '-cert2 ...',
678 '-key2 ...', '-servername_fatal' (subject to change). This allows
679 testing the HostName extension for a specific single host name ('-cert'
680 and '-key' remain fallbacks for handshakes without HostName
681 negotiation). If the unrecogninzed_name alert has to be sent, this by
682 default is a warning; it becomes fatal with the '-servername_fatal'
685 [Peter Sylvester, Remy Allais, Christophe Renou]
687 *) Whirlpool hash implementation is added.
690 *) BIGNUM code on 64-bit SPARCv9 targets is switched from bn(64,64) to
691 bn(64,32). Because of instruction set limitations it doesn't have
692 any negative impact on performance. This was done mostly in order
693 to make it possible to share assembler modules, such as bn_mul_mont
694 implementations, between 32- and 64-bit builds without hassle.
697 *) Move code previously exiled into file crypto/ec/ec2_smpt.c
698 to ec2_smpl.c, and no longer require the OPENSSL_EC_BIN_PT_COMP
702 *) New candidate for BIGNUM assembler implementation, bn_mul_mont,
703 dedicated Montgomery multiplication procedure, is introduced.
704 BN_MONT_CTX is modified to allow bn_mul_mont to reach for higher
705 "64-bit" performance on certain 32-bit targets.
708 *) New option SSL_OP_NO_COMP to disable use of compression selectively
709 in SSL structures. New SSL ctrl to set maximum send fragment size.
710 Save memory by seeting the I/O buffer sizes dynamically instead of
711 using the maximum available value.
714 *) New option -V for 'openssl ciphers'. This prints the ciphersuite code
715 in addition to the text details.
718 *) Very, very preliminary EXPERIMENTAL support for printing of general
719 ASN1 structures. This currently produces rather ugly output and doesn't
720 handle several customised structures at all.
723 *) Integrated support for PVK file format and some related formats such
724 as MS PUBLICKEYBLOB and PRIVATEKEYBLOB. Command line switches to support
725 these in the 'rsa' and 'dsa' utilities.
728 *) Support for PKCS#1 RSAPublicKey format on rsa utility command line.
731 *) Remove the ancient ASN1_METHOD code. This was only ever used in one
732 place for the (very old) "NETSCAPE" format certificates which are now
733 handled using new ASN1 code equivalents.
736 *) Let the TLSv1_method() etc. functions return a 'const' SSL_METHOD
737 pointer and make the SSL_METHOD parameter in SSL_CTX_new,
738 SSL_CTX_set_ssl_version and SSL_set_ssl_method 'const'.
741 *) Modify CRL distribution points extension code to print out previously
742 unsupported fields. Enhance extension setting code to allow setting of
746 *) Add print and set support for Issuing Distribution Point CRL extension.
749 *) Change 'Configure' script to enable Camellia by default.
752 Changes between 0.9.8k and 0.9.8l [xx XXX xxxx]
755 [Ilya O. <vrghost@gmail.com>]
757 Changes between 0.9.8j and 0.9.8k [25 Mar 2009]
759 *) Don't set val to NULL when freeing up structures, it is freed up by
760 underlying code. If sizeof(void *) > sizeof(long) this can result in
761 zeroing past the valid field. (CVE-2009-0789)
762 [Paolo Ganci <Paolo.Ganci@AdNovum.CH>]
764 *) Fix bug where return value of CMS_SignerInfo_verify_content() was not
765 checked correctly. This would allow some invalid signed attributes to
766 appear to verify correctly. (CVE-2009-0591)
767 [Ivan Nestlerode <inestlerode@us.ibm.com>]
769 *) Reject UniversalString and BMPString types with invalid lengths. This
770 prevents a crash in ASN1_STRING_print_ex() which assumes the strings have
771 a legal length. (CVE-2009-0590)
774 *) Set S/MIME signing as the default purpose rather than setting it
775 unconditionally. This allows applications to override it at the store
779 *) Permit restricted recursion of ASN1 strings. This is needed in practice
780 to handle some structures.
783 *) Improve efficiency of mem_gets: don't search whole buffer each time
785 [Jeremy Shapiro <jnshapir@us.ibm.com>]
787 *) New -hex option for openssl rand.
790 *) Print out UTF8String and NumericString when parsing ASN1.
793 *) Support NumericString type for name components.
796 *) Allow CC in the environment to override the automatically chosen
797 compiler. Note that nothing is done to ensure flags work with the
801 Changes between 0.9.8i and 0.9.8j [07 Jan 2009]
803 *) Properly check EVP_VerifyFinal() and similar return values
805 [Ben Laurie, Bodo Moeller, Google Security Team]
807 *) Enable TLS extensions by default.
810 *) Allow the CHIL engine to be loaded, whether the application is
811 multithreaded or not. (This does not release the developer from the
812 obligation to set up the dynamic locking callbacks.)
813 [Sander Temme <sander@temme.net>]
815 *) Use correct exit code if there is an error in dgst command.
816 [Steve Henson; problem pointed out by Roland Dirlewanger]
818 *) Tweak Configure so that you need to say "experimental-jpake" to enable
819 JPAKE, and need to use -DOPENSSL_EXPERIMENTAL_JPAKE in applications.
822 *) Add experimental JPAKE support, including demo authentication in
823 s_client and s_server.
826 *) Set the comparison function in v3_addr_canonize().
827 [Rob Austein <sra@hactrn.net>]
829 *) Add support for XMPP STARTTLS in s_client.
830 [Philip Paeps <philip@freebsd.org>]
832 *) Change the server-side SSL_OP_NETSCAPE_REUSE_CIPHER_CHANGE_BUG behavior
833 to ensure that even with this option, only ciphersuites in the
834 server's preference list will be accepted. (Note that the option
835 applies only when resuming a session, so the earlier behavior was
836 just about the algorithm choice for symmetric cryptography.)
839 Changes between 0.9.8h and 0.9.8i [15 Sep 2008]
841 *) Fix a state transitition in s3_srvr.c and d1_srvr.c
842 (was using SSL3_ST_CW_CLNT_HELLO_B, should be ..._ST_SW_SRVR_...).
845 *) The fix in 0.9.8c that supposedly got rid of unsafe
846 double-checked locking was incomplete for RSA blinding,
847 addressing just one layer of what turns out to have been
848 doubly unsafe triple-checked locking.
850 So now fix this for real by retiring the MONT_HELPER macro
851 in crypto/rsa/rsa_eay.c.
853 [Bodo Moeller; problem pointed out by Marius Schilder]
855 *) Various precautionary measures:
857 - Avoid size_t integer overflow in HASH_UPDATE (md32_common.h).
859 - Avoid a buffer overflow in d2i_SSL_SESSION() (ssl_asn1.c).
860 (NB: This would require knowledge of the secret session ticket key
861 to exploit, in which case you'd be SOL either way.)
863 - Change bn_nist.c so that it will properly handle input BIGNUMs
864 outside the expected range.
866 - Enforce the 'num' check in BN_div() (bn_div.c) for non-BN_DEBUG
869 [Neel Mehta, Bodo Moeller]
871 *) Allow engines to be "soft loaded" - i.e. optionally don't die if
872 the load fails. Useful for distros.
873 [Ben Laurie and the FreeBSD team]
875 *) Add support for Local Machine Keyset attribute in PKCS#12 files.
878 *) Fix BN_GF2m_mod_arr() top-bit cleanup code.
881 *) Expand ENGINE to support engine supplied SSL client certificate functions.
883 This work was sponsored by Logica.
886 *) Add CryptoAPI ENGINE to support use of RSA and DSA keys held in Windows
887 keystores. Support for SSL/TLS client authentication too.
888 Not compiled unless enable-capieng specified to Configure.
890 This work was sponsored by Logica.
893 *) Fix bug in X509_ATTRIBUTE creation: dont set attribute using
894 ASN1_TYPE_set1 if MBSTRING flag set. This bug would crash certain
895 attribute creation routines such as certifcate requests and PKCS#12
899 Changes between 0.9.8g and 0.9.8h [28 May 2008]
901 *) Fix flaw if 'Server Key exchange message' is omitted from a TLS
902 handshake which could lead to a cilent crash as found using the
903 Codenomicon TLS test suite (CVE-2008-1672)
904 [Steve Henson, Mark Cox]
906 *) Fix double free in TLS server name extensions which could lead to
907 a remote crash found by Codenomicon TLS test suite (CVE-2008-0891)
910 *) Clear error queue in SSL_CTX_use_certificate_chain_file()
912 Clear the error queue to ensure that error entries left from
913 older function calls do not interfere with the correct operation.
914 [Lutz Jaenicke, Erik de Castro Lopo]
916 *) Remove root CA certificates of commercial CAs:
918 The OpenSSL project does not recommend any specific CA and does not
919 have any policy with respect to including or excluding any CA.
920 Therefore it does not make any sense to ship an arbitrary selection
921 of root CA certificates with the OpenSSL software.
924 *) RSA OAEP patches to fix two separate invalid memory reads.
925 The first one involves inputs when 'lzero' is greater than
926 'SHA_DIGEST_LENGTH' (it would read about SHA_DIGEST_LENGTH bytes
927 before the beginning of from). The second one involves inputs where
928 the 'db' section contains nothing but zeroes (there is a one-byte
929 invalid read after the end of 'db').
930 [Ivan Nestlerode <inestlerode@us.ibm.com>]
932 *) Partial backport from 0.9.9-dev:
934 Introduce bn_mul_mont (dedicated Montgomery multiplication
935 procedure) as a candidate for BIGNUM assembler implementation.
936 While 0.9.9-dev uses assembler for various architectures, only
937 x86_64 is available by default here in the 0.9.8 branch, and
938 32-bit x86 is available through a compile-time setting.
940 To try the 32-bit x86 assembler implementation, use Configure
941 option "enable-montasm" (which exists only for this backport).
943 As "enable-montasm" for 32-bit x86 disclaims code stability
944 anyway, in this constellation we activate additional code
945 backported from 0.9.9-dev for further performance improvements,
946 namely BN_from_montgomery_word. (To enable this otherwise,
947 e.g. x86_64, try "-DMONT_FROM_WORD___NON_DEFAULT_0_9_8_BUILD".)
949 [Andy Polyakov (backport partially by Bodo Moeller)]
951 *) Add TLS session ticket callback. This allows an application to set
952 TLS ticket cipher and HMAC keys rather than relying on hardcoded fixed
953 values. This is useful for key rollover for example where several key
954 sets may exist with different names.
957 *) Reverse ENGINE-internal logic for caching default ENGINE handles.
958 This was broken until now in 0.9.8 releases, such that the only way
959 a registered ENGINE could be used (assuming it initialises
960 successfully on the host) was to explicitly set it as the default
961 for the relevant algorithms. This is in contradiction with 0.9.7
962 behaviour and the documentation. With this fix, when an ENGINE is
963 registered into a given algorithm's table of implementations, the
964 'uptodate' flag is reset so that auto-discovery will be used next
965 time a new context for that algorithm attempts to select an
967 [Ian Lister (tweaked by Geoff Thorpe)]
969 *) Backport of CMS code to OpenSSL 0.9.8. This differs from the 0.9.9
970 implemention in the following ways:
972 Lack of EVP_PKEY_ASN1_METHOD means algorithm parameters have to be
975 Lack of BER streaming support means one pass streaming processing is
976 only supported if data is detached: setting the streaming flag is
977 ignored for embedded content.
979 CMS support is disabled by default and must be explicitly enabled
980 with the enable-cms configuration option.
983 *) Update the GMP engine glue to do direct copies between BIGNUM and
984 mpz_t when openssl and GMP use the same limb size. Otherwise the
985 existing "conversion via a text string export" trick is still used.
986 [Paul Sheer <paulsheer@gmail.com>]
988 *) Zlib compression BIO. This is a filter BIO which compressed and
989 uncompresses any data passed through it.
992 *) Add AES_wrap_key() and AES_unwrap_key() functions to implement
993 RFC3394 compatible AES key wrapping.
996 *) Add utility functions to handle ASN1 structures. ASN1_STRING_set0():
997 sets string data without copying. X509_ALGOR_set0() and
998 X509_ALGOR_get0(): set and retrieve X509_ALGOR (AlgorithmIdentifier)
999 data. Attribute function X509at_get0_data_by_OBJ(): retrieves data
1000 from an X509_ATTRIBUTE structure optionally checking it occurs only
1001 once. ASN1_TYPE_set1(): set and ASN1_TYPE structure copying supplied
1005 *) Fix BN flag handling in RSA_eay_mod_exp() and BN_MONT_CTX_set()
1006 to get the expected BN_FLG_CONSTTIME behavior.
1007 [Bodo Moeller (Google)]
1011 - fixed wrong usage of ioctlsocket() when build for LIBC BSD sockets
1012 - fixed do_tests.pl to run the test suite with CLIB builds too (CLIB_OPT)
1013 - added some more tests to do_tests.pl
1014 - fixed RunningProcess usage so that it works with newer LIBC NDKs too
1015 - removed usage of BN_LLONG for CLIB builds to avoid runtime dependency
1016 - added new Configure targets netware-clib-bsdsock, netware-clib-gcc,
1017 netware-clib-bsdsock-gcc, netware-libc-bsdsock-gcc
1018 - various changes to netware.pl to enable gcc-cross builds on Win32
1020 - changed crypto/bio/b_sock.c to work with macro functions (CLIB BSD)
1021 - various changes to fix missing prototype warnings
1022 - fixed x86nasm.pl to create correct asm files for NASM COFF output
1023 - added AES, WHIRLPOOL and CPUID assembler code to build files
1024 - added missing AES assembler make rules to mk1mf.pl
1025 - fixed order of includes in apps/ocsp.c so that e_os.h settings apply
1026 [Guenter Knauf <eflash@gmx.net>]
1028 *) Implement certificate status request TLS extension defined in RFC3546.
1029 A client can set the appropriate parameters and receive the encoded
1030 OCSP response via a callback. A server can query the supplied parameters
1031 and set the encoded OCSP response in the callback. Add simplified examples
1032 to s_client and s_server.
1035 Changes between 0.9.8f and 0.9.8g [19 Oct 2007]
1037 *) Fix various bugs:
1038 + Binary incompatibility of ssl_ctx_st structure
1039 + DTLS interoperation with non-compliant servers
1040 + Don't call get_session_cb() without proposed session
1041 + Fix ia64 assembler code
1042 [Andy Polyakov, Steve Henson]
1044 Changes between 0.9.8e and 0.9.8f [11 Oct 2007]
1046 *) DTLS Handshake overhaul. There were longstanding issues with
1047 OpenSSL DTLS implementation, which were making it impossible for
1048 RFC 4347 compliant client to communicate with OpenSSL server.
1049 Unfortunately just fixing these incompatibilities would "cut off"
1050 pre-0.9.8f clients. To allow for hassle free upgrade post-0.9.8e
1051 server keeps tolerating non RFC compliant syntax. The opposite is
1052 not true, 0.9.8f client can not communicate with earlier server.
1053 This update even addresses CVE-2007-4995.
1056 *) Changes to avoid need for function casts in OpenSSL: some compilers
1057 (gcc 4.2 and later) reject their use.
1058 [Kurt Roeckx <kurt@roeckx.be>, Peter Hartley <pdh@utter.chaos.org.uk>,
1061 *) Add RFC4507 support to OpenSSL. This includes the corrections in
1062 RFC4507bis. The encrypted ticket format is an encrypted encoded
1063 SSL_SESSION structure, that way new session features are automatically
1066 If a client application caches session in an SSL_SESSION structure
1067 support is transparent because tickets are now stored in the encoded
1070 The SSL_CTX structure automatically generates keys for ticket
1071 protection in servers so again support should be possible
1072 with no application modification.
1074 If a client or server wishes to disable RFC4507 support then the option
1075 SSL_OP_NO_TICKET can be set.
1077 Add a TLS extension debugging callback to allow the contents of any client
1078 or server extensions to be examined.
1080 This work was sponsored by Google.
1083 *) Add initial support for TLS extensions, specifically for the server_name
1084 extension so far. The SSL_SESSION, SSL_CTX, and SSL data structures now
1085 have new members for a host name. The SSL data structure has an
1086 additional member SSL_CTX *initial_ctx so that new sessions can be
1087 stored in that context to allow for session resumption, even after the
1088 SSL has been switched to a new SSL_CTX in reaction to a client's
1089 server_name extension.
1091 New functions (subject to change):
1093 SSL_get_servername()
1094 SSL_get_servername_type()
1097 New CTRL codes and macros (subject to change):
1099 SSL_CTRL_SET_TLSEXT_SERVERNAME_CB
1100 - SSL_CTX_set_tlsext_servername_callback()
1101 SSL_CTRL_SET_TLSEXT_SERVERNAME_ARG
1102 - SSL_CTX_set_tlsext_servername_arg()
1103 SSL_CTRL_SET_TLSEXT_HOSTNAME - SSL_set_tlsext_host_name()
1105 openssl s_client has a new '-servername ...' option.
1107 openssl s_server has new options '-servername_host ...', '-cert2 ...',
1108 '-key2 ...', '-servername_fatal' (subject to change). This allows
1109 testing the HostName extension for a specific single host name ('-cert'
1110 and '-key' remain fallbacks for handshakes without HostName
1111 negotiation). If the unrecogninzed_name alert has to be sent, this by
1112 default is a warning; it becomes fatal with the '-servername_fatal'
1115 [Peter Sylvester, Remy Allais, Christophe Renou, Steve Henson]
1117 *) Add AES and SSE2 assembly language support to VC++ build.
1120 *) Mitigate attack on final subtraction in Montgomery reduction.
1123 *) Fix crypto/ec/ec_mult.c to work properly with scalars of value 0
1124 (which previously caused an internal error).
1127 *) Squeeze another 10% out of IGE mode when in != out.
1130 *) AES IGE mode speedup.
1131 [Dean Gaudet (Google)]
1133 *) Add the Korean symmetric 128-bit cipher SEED (see
1134 http://www.kisa.or.kr/kisa/seed/jsp/seed_eng.jsp) and
1135 add SEED ciphersuites from RFC 4162:
1137 TLS_RSA_WITH_SEED_CBC_SHA = "SEED-SHA"
1138 TLS_DHE_DSS_WITH_SEED_CBC_SHA = "DHE-DSS-SEED-SHA"
1139 TLS_DHE_RSA_WITH_SEED_CBC_SHA = "DHE-RSA-SEED-SHA"
1140 TLS_DH_anon_WITH_SEED_CBC_SHA = "ADH-SEED-SHA"
1142 To minimize changes between patchlevels in the OpenSSL 0.9.8
1143 series, SEED remains excluded from compilation unless OpenSSL
1144 is configured with 'enable-seed'.
1145 [KISA, Bodo Moeller]
1147 *) Mitigate branch prediction attacks, which can be practical if a
1148 single processor is shared, allowing a spy process to extract
1149 information. For detailed background information, see
1150 http://eprint.iacr.org/2007/039 (O. Aciicmez, S. Gueron,
1151 J.-P. Seifert, "New Branch Prediction Vulnerabilities in OpenSSL
1152 and Necessary Software Countermeasures"). The core of the change
1153 are new versions BN_div_no_branch() and
1154 BN_mod_inverse_no_branch() of BN_div() and BN_mod_inverse(),
1155 respectively, which are slower, but avoid the security-relevant
1156 conditional branches. These are automatically called by BN_div()
1157 and BN_mod_inverse() if the flag BN_FLG_CONSTTIME is set for one
1158 of the input BIGNUMs. Also, BN_is_bit_set() has been changed to
1159 remove a conditional branch.
1161 BN_FLG_CONSTTIME is the new name for the previous
1162 BN_FLG_EXP_CONSTTIME flag, since it now affects more than just
1163 modular exponentiation. (Since OpenSSL 0.9.7h, setting this flag
1164 in the exponent causes BN_mod_exp_mont() to use the alternative
1165 implementation in BN_mod_exp_mont_consttime().) The old name
1166 remains as a deprecated alias.
1168 Similary, RSA_FLAG_NO_EXP_CONSTTIME is replaced by a more general
1169 RSA_FLAG_NO_CONSTTIME flag since the RSA implementation now uses
1170 constant-time implementations for more than just exponentiation.
1171 Here too the old name is kept as a deprecated alias.
1173 BN_BLINDING_new() will now use BN_dup() for the modulus so that
1174 the BN_BLINDING structure gets an independent copy of the
1175 modulus. This means that the previous "BIGNUM *m" argument to
1176 BN_BLINDING_new() and to BN_BLINDING_create_param() now
1177 essentially becomes "const BIGNUM *m", although we can't actually
1178 change this in the header file before 0.9.9. It allows
1179 RSA_setup_blinding() to use BN_with_flags() on the modulus to
1180 enable BN_FLG_CONSTTIME.
1182 [Matthew D Wood (Intel Corp)]
1184 *) In the SSL/TLS server implementation, be strict about session ID
1185 context matching (which matters if an application uses a single
1186 external cache for different purposes). Previously,
1187 out-of-context reuse was forbidden only if SSL_VERIFY_PEER was
1188 set. This did ensure strict client verification, but meant that,
1189 with applications using a single external cache for quite
1190 different requirements, clients could circumvent ciphersuite
1191 restrictions for a given session ID context by starting a session
1192 in a different context.
1195 *) Include "!eNULL" in SSL_DEFAULT_CIPHER_LIST to make sure that
1196 a ciphersuite string such as "DEFAULT:RSA" cannot enable
1197 authentication-only ciphersuites.
1200 *) Update the SSL_get_shared_ciphers() fix CVE-2006-3738 which was
1201 not complete and could lead to a possible single byte overflow
1202 (CVE-2007-5135) [Ben Laurie]
1204 Changes between 0.9.8d and 0.9.8e [23 Feb 2007]
1206 *) Since AES128 and AES256 (and similarly Camellia128 and
1207 Camellia256) share a single mask bit in the logic of
1208 ssl/ssl_ciph.c, the code for masking out disabled ciphers needs a
1209 kludge to work properly if AES128 is available and AES256 isn't
1210 (or if Camellia128 is available and Camellia256 isn't).
1213 *) Fix the BIT STRING encoding generated by crypto/ec/ec_asn1.c
1214 (within i2d_ECPrivateKey, i2d_ECPKParameters, i2d_ECParameters):
1215 When a point or a seed is encoded in a BIT STRING, we need to
1216 prevent the removal of trailing zero bits to get the proper DER
1217 encoding. (By default, crypto/asn1/a_bitstr.c assumes the case
1218 of a NamedBitList, for which trailing 0 bits need to be removed.)
1221 *) Have SSL/TLS server implementation tolerate "mismatched" record
1222 protocol version while receiving ClientHello even if the
1223 ClientHello is fragmented. (The server can't insist on the
1224 particular protocol version it has chosen before the ServerHello
1225 message has informed the client about his choice.)
1228 *) Add RFC 3779 support.
1229 [Rob Austein for ARIN, Ben Laurie]
1231 *) Load error codes if they are not already present instead of using a
1232 static variable. This allows them to be cleanly unloaded and reloaded.
1233 Improve header file function name parsing.
1236 *) extend SMTP and IMAP protocol emulation in s_client to use EHLO
1237 or CAPABILITY handshake as required by RFCs.
1240 Changes between 0.9.8c and 0.9.8d [28 Sep 2006]
1242 *) Introduce limits to prevent malicious keys being able to
1243 cause a denial of service. (CVE-2006-2940)
1244 [Steve Henson, Bodo Moeller]
1246 *) Fix ASN.1 parsing of certain invalid structures that can result
1247 in a denial of service. (CVE-2006-2937) [Steve Henson]
1249 *) Fix buffer overflow in SSL_get_shared_ciphers() function.
1250 (CVE-2006-3738) [Tavis Ormandy and Will Drewry, Google Security Team]
1252 *) Fix SSL client code which could crash if connecting to a
1253 malicious SSLv2 server. (CVE-2006-4343)
1254 [Tavis Ormandy and Will Drewry, Google Security Team]
1256 *) Since 0.9.8b, ciphersuite strings naming explicit ciphersuites
1257 match only those. Before that, "AES256-SHA" would be interpreted
1258 as a pattern and match "AES128-SHA" too (since AES128-SHA got
1259 the same strength classification in 0.9.7h) as we currently only
1260 have a single AES bit in the ciphersuite description bitmap.
1261 That change, however, also applied to ciphersuite strings such as
1262 "RC4-MD5" that intentionally matched multiple ciphersuites --
1263 namely, SSL 2.0 ciphersuites in addition to the more common ones
1264 from SSL 3.0/TLS 1.0.
1266 So we change the selection algorithm again: Naming an explicit
1267 ciphersuite selects this one ciphersuite, and any other similar
1268 ciphersuite (same bitmap) from *other* protocol versions.
1269 Thus, "RC4-MD5" again will properly select both the SSL 2.0
1270 ciphersuite and the SSL 3.0/TLS 1.0 ciphersuite.
1272 Since SSL 2.0 does not have any ciphersuites for which the
1273 128/256 bit distinction would be relevant, this works for now.
1274 The proper fix will be to use different bits for AES128 and
1275 AES256, which would have avoided the problems from the beginning;
1276 however, bits are scarce, so we can only do this in a new release
1277 (not just a patchlevel) when we can change the SSL_CIPHER
1278 definition to split the single 'unsigned long mask' bitmap into
1279 multiple values to extend the available space.
1283 Changes between 0.9.8b and 0.9.8c [05 Sep 2006]
1285 *) Avoid PKCS #1 v1.5 signature attack discovered by Daniel Bleichenbacher
1286 (CVE-2006-4339) [Ben Laurie and Google Security Team]
1288 *) Add AES IGE and biIGE modes.
1291 *) Change the Unix randomness entropy gathering to use poll() when
1292 possible instead of select(), since the latter has some
1293 undesirable limitations.
1294 [Darryl Miles via Richard Levitte and Bodo Moeller]
1296 *) Disable "ECCdraft" ciphersuites more thoroughly. Now special
1297 treatment in ssl/ssl_ciph.s makes sure that these ciphersuites
1298 cannot be implicitly activated as part of, e.g., the "AES" alias.
1299 However, please upgrade to OpenSSL 0.9.9[-dev] for
1300 non-experimental use of the ECC ciphersuites to get TLS extension
1301 support, which is required for curve and point format negotiation
1302 to avoid potential handshake problems.
1305 *) Disable rogue ciphersuites:
1307 - SSLv2 0x08 0x00 0x80 ("RC4-64-MD5")
1308 - SSLv3/TLSv1 0x00 0x61 ("EXP1024-RC2-CBC-MD5")
1309 - SSLv3/TLSv1 0x00 0x60 ("EXP1024-RC4-MD5")
1311 The latter two were purportedly from
1312 draft-ietf-tls-56-bit-ciphersuites-0[01].txt, but do not really
1315 Also deactivate the remaining ciphersuites from
1316 draft-ietf-tls-56-bit-ciphersuites-01.txt. These are just as
1317 unofficial, and the ID has long expired.
1320 *) Fix RSA blinding Heisenbug (problems sometimes occured on
1321 dual-core machines) and other potential thread-safety issues.
1324 *) Add the symmetric cipher Camellia (128-bit, 192-bit, 256-bit key
1325 versions), which is now available for royalty-free use
1326 (see http://info.isl.ntt.co.jp/crypt/eng/info/chiteki.html).
1327 Also, add Camellia TLS ciphersuites from RFC 4132.
1329 To minimize changes between patchlevels in the OpenSSL 0.9.8
1330 series, Camellia remains excluded from compilation unless OpenSSL
1331 is configured with 'enable-camellia'.
1334 *) Disable the padding bug check when compression is in use. The padding
1335 bug check assumes the first packet is of even length, this is not
1336 necessarily true if compresssion is enabled and can result in false
1337 positives causing handshake failure. The actual bug test is ancient
1338 code so it is hoped that implementations will either have fixed it by
1339 now or any which still have the bug do not support compression.
1342 Changes between 0.9.8a and 0.9.8b [04 May 2006]
1344 *) When applying a cipher rule check to see if string match is an explicit
1345 cipher suite and only match that one cipher suite if it is.
1348 *) Link in manifests for VC++ if needed.
1349 [Austin Ziegler <halostatue@gmail.com>]
1351 *) Update support for ECC-based TLS ciphersuites according to
1352 draft-ietf-tls-ecc-12.txt with proposed changes (but without
1353 TLS extensions, which are supported starting with the 0.9.9
1354 branch, not in the OpenSSL 0.9.8 branch).
1357 *) New functions EVP_CIPHER_CTX_new() and EVP_CIPHER_CTX_free() to support
1358 opaque EVP_CIPHER_CTX handling.
1361 *) Fixes and enhancements to zlib compression code. We now only use
1362 "zlib1.dll" and use the default __cdecl calling convention on Win32
1363 to conform with the standards mentioned here:
1364 http://www.zlib.net/DLL_FAQ.txt
1365 Static zlib linking now works on Windows and the new --with-zlib-include
1366 --with-zlib-lib options to Configure can be used to supply the location
1367 of the headers and library. Gracefully handle case where zlib library
1371 *) Several fixes and enhancements to the OID generation code. The old code
1372 sometimes allowed invalid OIDs (1.X for X >= 40 for example), couldn't
1373 handle numbers larger than ULONG_MAX, truncated printing and had a
1374 non standard OBJ_obj2txt() behaviour.
1377 *) Add support for building of engines under engine/ as shared libraries
1378 under VC++ build system.
1381 *) Corrected the numerous bugs in the Win32 path splitter in DSO.
1382 Hopefully, we will not see any false combination of paths any more.
1385 Changes between 0.9.8 and 0.9.8a [11 Oct 2005]
1387 *) Remove the functionality of SSL_OP_MSIE_SSLV2_RSA_PADDING
1388 (part of SSL_OP_ALL). This option used to disable the
1389 countermeasure against man-in-the-middle protocol-version
1390 rollback in the SSL 2.0 server implementation, which is a bad
1391 idea. (CVE-2005-2969)
1393 [Bodo Moeller; problem pointed out by Yutaka Oiwa (Research Center
1394 for Information Security, National Institute of Advanced Industrial
1395 Science and Technology [AIST], Japan)]
1397 *) Add two function to clear and return the verify parameter flags.
1400 *) Keep cipherlists sorted in the source instead of sorting them at
1401 runtime, thus removing the need for a lock.
1404 *) Avoid some small subgroup attacks in Diffie-Hellman.
1405 [Nick Mathewson and Ben Laurie]
1407 *) Add functions for well-known primes.
1410 *) Extended Windows CE support.
1411 [Satoshi Nakamura and Andy Polyakov]
1413 *) Initialize SSL_METHOD structures at compile time instead of during
1414 runtime, thus removing the need for a lock.
1417 *) Make PKCS7_decrypt() work even if no certificate is supplied by
1418 attempting to decrypt each encrypted key in turn. Add support to
1422 Changes between 0.9.7h and 0.9.8 [05 Jul 2005]
1424 [NB: OpenSSL 0.9.7i and later 0.9.7 patch levels were released after
1427 *) Add libcrypto.pc and libssl.pc for those who feel they need them.
1430 *) Change CA.sh and CA.pl so they don't bundle the CSR and the private
1431 key into the same file any more.
1434 *) Add initial support for Win64, both IA64 and AMD64/x64 flavors.
1437 *) Add -utf8 command line and config file option to 'ca'.
1438 [Stefan <stf@udoma.org]
1440 *) Removed the macro des_crypt(), as it seems to conflict with some
1441 libraries. Use DES_crypt().
1444 *) Correct naming of the 'chil' and '4758cca' ENGINEs. This
1445 involves renaming the source and generated shared-libs for
1446 both. The engines will accept the corrected or legacy ids
1447 ('ncipher' and '4758_cca' respectively) when binding. NB,
1448 this only applies when building 'shared'.
1449 [Corinna Vinschen <vinschen@redhat.com> and Geoff Thorpe]
1451 *) Add attribute functions to EVP_PKEY structure. Modify
1452 PKCS12_create() to recognize a CSP name attribute and
1453 use it. Make -CSP option work again in pkcs12 utility.
1456 *) Add new functionality to the bn blinding code:
1457 - automatic re-creation of the BN_BLINDING parameters after
1458 a fixed number of uses (currently 32)
1459 - add new function for parameter creation
1460 - introduce flags to control the update behaviour of the
1461 BN_BLINDING parameters
1462 - hide BN_BLINDING structure
1463 Add a second BN_BLINDING slot to the RSA structure to improve
1464 performance when a single RSA object is shared among several
1468 *) Add support for DTLS.
1469 [Nagendra Modadugu <nagendra@cs.stanford.edu> and Ben Laurie]
1471 *) Add support for DER encoded private keys (SSL_FILETYPE_ASN1)
1472 to SSL_CTX_use_PrivateKey_file() and SSL_use_PrivateKey_file()
1475 *) Remove buggy and incompletet DH cert support from
1476 ssl/ssl_rsa.c and ssl/s3_both.c
1479 *) Use SHA-1 instead of MD5 as the default digest algorithm for
1480 the apps/openssl applications.
1483 *) Compile clean with "-Wall -Wmissing-prototypes
1484 -Wstrict-prototypes -Wmissing-declarations -Werror". Currently
1485 DEBUG_SAFESTACK must also be set.
1488 *) Change ./Configure so that certain algorithms can be disabled by default.
1489 The new counterpiece to "no-xxx" is "enable-xxx".
1491 The patented RC5 and MDC2 algorithms will now be disabled unless
1492 "enable-rc5" and "enable-mdc2", respectively, are specified.
1494 (IDEA remains enabled despite being patented. This is because IDEA
1495 is frequently required for interoperability, and there is no license
1496 fee for non-commercial use. As before, "no-idea" can be used to
1497 avoid this algorithm.)
1501 *) Add processing of proxy certificates (see RFC 3820). This work was
1502 sponsored by KTH (The Royal Institute of Technology in Stockholm) and
1503 EGEE (Enabling Grids for E-science in Europe).
1506 *) RC4 performance overhaul on modern architectures/implementations, such
1507 as Intel P4, IA-64 and AMD64.
1510 *) New utility extract-section.pl. This can be used specify an alternative
1511 section number in a pod file instead of having to treat each file as
1512 a separate case in Makefile. This can be done by adding two lines to the
1515 =for comment openssl_section:XXX
1517 The blank line is mandatory.
1521 *) New arguments -certform, -keyform and -pass for s_client and s_server
1522 to allow alternative format key and certificate files and passphrase
1526 *) New structure X509_VERIFY_PARAM which combines current verify parameters,
1527 update associated structures and add various utility functions.
1529 Add new policy related verify parameters, include policy checking in
1530 standard verify code. Enhance 'smime' application with extra parameters
1531 to support policy checking and print out.
1534 *) Add a new engine to support VIA PadLock ACE extensions in the VIA C3
1535 Nehemiah processors. These extensions support AES encryption in hardware
1536 as well as RNG (though RNG support is currently disabled).
1537 [Michal Ludvig <michal@logix.cz>, with help from Andy Polyakov]
1539 *) Deprecate BN_[get|set]_params() functions (they were ignored internally).
1542 *) New FIPS 180-2 algorithms, SHA-224/-256/-384/-512 are implemented.
1543 [Andy Polyakov and a number of other people]
1545 *) Improved PowerPC platform support. Most notably BIGNUM assembler
1546 implementation contributed by IBM.
1547 [Suresh Chari, Peter Waltenberg, Andy Polyakov]
1549 *) The new 'RSA_generate_key_ex' function now takes a BIGNUM for the public
1550 exponent rather than 'unsigned long'. There is a corresponding change to
1551 the new 'rsa_keygen' element of the RSA_METHOD structure.
1552 [Jelte Jansen, Geoff Thorpe]
1554 *) Functionality for creating the initial serial number file is now
1555 moved from CA.pl to the 'ca' utility with a new option -create_serial.
1557 (Before OpenSSL 0.9.7e, CA.pl used to initialize the serial
1558 number file to 1, which is bound to cause problems. To avoid
1559 the problems while respecting compatibility between different 0.9.7
1560 patchlevels, 0.9.7e employed 'openssl x509 -next_serial' in
1561 CA.pl for serial number initialization. With the new release 0.9.8,
1562 we can fix the problem directly in the 'ca' utility.)
1565 *) Reduced header interdepencies by declaring more opaque objects in
1566 ossl_typ.h. As a consequence, including some headers (eg. engine.h) will
1567 give fewer recursive includes, which could break lazy source code - so
1568 this change is covered by the OPENSSL_NO_DEPRECATED symbol. As always,
1569 developers should define this symbol when building and using openssl to
1570 ensure they track the recommended behaviour, interfaces, [etc], but
1571 backwards-compatible behaviour prevails when this isn't defined.
1574 *) New function X509_POLICY_NODE_print() which prints out policy nodes.
1577 *) Add new EVP function EVP_CIPHER_CTX_rand_key and associated functionality.
1578 This will generate a random key of the appropriate length based on the
1579 cipher context. The EVP_CIPHER can provide its own random key generation
1580 routine to support keys of a specific form. This is used in the des and
1581 3des routines to generate a key of the correct parity. Update S/MIME
1582 code to use new functions and hence generate correct parity DES keys.
1583 Add EVP_CHECK_DES_KEY #define to return an error if the key is not
1584 valid (weak or incorrect parity).
1587 *) Add a local set of CRLs that can be used by X509_verify_cert() as well
1588 as looking them up. This is useful when the verified structure may contain
1589 CRLs, for example PKCS#7 signedData. Modify PKCS7_verify() to use any CRLs
1590 present unless the new PKCS7_NO_CRL flag is asserted.
1593 *) Extend ASN1 oid configuration module. It now additionally accepts the
1596 shortName = some long name, 1.2.3.4
1599 *) Reimplemented the BN_CTX implementation. There is now no more static
1600 limitation on the number of variables it can handle nor the depth of the
1601 "stack" handling for BN_CTX_start()/BN_CTX_end() pairs. The stack
1602 information can now expand as required, and rather than having a single
1603 static array of bignums, BN_CTX now uses a linked-list of such arrays
1604 allowing it to expand on demand whilst maintaining the usefulness of
1605 BN_CTX's "bundling".
1608 *) Add a missing BN_CTX parameter to the 'rsa_mod_exp' callback in RSA_METHOD
1609 to allow all RSA operations to function using a single BN_CTX.
1612 *) Preliminary support for certificate policy evaluation and checking. This
1613 is initially intended to pass the tests outlined in "Conformance Testing
1614 of Relying Party Client Certificate Path Processing Logic" v1.07.
1617 *) bn_dup_expand() has been deprecated, it was introduced in 0.9.7 and
1618 remained unused and not that useful. A variety of other little bignum
1619 tweaks and fixes have also been made continuing on from the audit (see
1623 *) Constify all or almost all d2i, c2i, s2i and r2i functions, along with
1624 associated ASN1, EVP and SSL functions and old ASN1 macros.
1627 *) BN_zero() only needs to set 'top' and 'neg' to zero for correct results,
1628 and this should never fail. So the return value from the use of
1629 BN_set_word() (which can fail due to needless expansion) is now deprecated;
1630 if OPENSSL_NO_DEPRECATED is defined, BN_zero() is a void macro.
1633 *) BN_CTX_get() should return zero-valued bignums, providing the same
1634 initialised value as BN_new().
1635 [Geoff Thorpe, suggested by Ulf Möller]
1637 *) Support for inhibitAnyPolicy certificate extension.
1640 *) An audit of the BIGNUM code is underway, for which debugging code is
1641 enabled when BN_DEBUG is defined. This makes stricter enforcements on what
1642 is considered valid when processing BIGNUMs, and causes execution to
1643 assert() when a problem is discovered. If BN_DEBUG_RAND is defined,
1644 further steps are taken to deliberately pollute unused data in BIGNUM
1645 structures to try and expose faulty code further on. For now, openssl will
1646 (in its default mode of operation) continue to tolerate the inconsistent
1647 forms that it has tolerated in the past, but authors and packagers should
1648 consider trying openssl and their own applications when compiled with
1649 these debugging symbols defined. It will help highlight potential bugs in
1650 their own code, and will improve the test coverage for OpenSSL itself. At
1651 some point, these tighter rules will become openssl's default to improve
1652 maintainability, though the assert()s and other overheads will remain only
1653 in debugging configurations. See bn.h for more details.
1654 [Geoff Thorpe, Nils Larsch, Ulf Möller]
1656 *) BN_CTX_init() has been deprecated, as BN_CTX is an opaque structure
1657 that can only be obtained through BN_CTX_new() (which implicitly
1658 initialises it). The presence of this function only made it possible
1659 to overwrite an existing structure (and cause memory leaks).
1662 *) Because of the callback-based approach for implementing LHASH as a
1663 template type, lh_insert() adds opaque objects to hash-tables and
1664 lh_doall() or lh_doall_arg() are typically used with a destructor callback
1665 to clean up those corresponding objects before destroying the hash table
1666 (and losing the object pointers). So some over-zealous constifications in
1667 LHASH have been relaxed so that lh_insert() does not take (nor store) the
1668 objects as "const" and the lh_doall[_arg] callback wrappers are not
1669 prototyped to have "const" restrictions on the object pointers they are
1670 given (and so aren't required to cast them away any more).
1673 *) The tmdiff.h API was so ugly and minimal that our own timing utility
1674 (speed) prefers to use its own implementation. The two implementations
1675 haven't been consolidated as yet (volunteers?) but the tmdiff API has had
1676 its object type properly exposed (MS_TM) instead of casting to/from "char
1677 *". This may still change yet if someone realises MS_TM and "ms_time_***"
1678 aren't necessarily the greatest nomenclatures - but this is what was used
1679 internally to the implementation so I've used that for now.
1682 *) Ensure that deprecated functions do not get compiled when
1683 OPENSSL_NO_DEPRECATED is defined. Some "openssl" subcommands and a few of
1684 the self-tests were still using deprecated key-generation functions so
1685 these have been updated also.
1688 *) Reorganise PKCS#7 code to separate the digest location functionality
1689 into PKCS7_find_digest(), digest addtion into PKCS7_bio_add_digest().
1690 New function PKCS7_set_digest() to set the digest type for PKCS#7
1691 digestedData type. Add additional code to correctly generate the
1692 digestedData type and add support for this type in PKCS7 initialization
1696 *) New function PKCS7_set0_type_other() this initializes a PKCS7
1697 structure of type "other".
1700 *) Fix prime generation loop in crypto/bn/bn_prime.pl by making
1701 sure the loop does correctly stop and breaking ("division by zero")
1702 modulus operations are not performed. The (pre-generated) prime
1703 table crypto/bn/bn_prime.h was already correct, but it could not be
1704 re-generated on some platforms because of the "division by zero"
1705 situation in the script.
1706 [Ralf S. Engelschall]
1708 *) Update support for ECC-based TLS ciphersuites according to
1709 draft-ietf-tls-ecc-03.txt: the KDF1 key derivation function with
1710 SHA-1 now is only used for "small" curves (where the
1711 representation of a field element takes up to 24 bytes); for
1712 larger curves, the field element resulting from ECDH is directly
1713 used as premaster secret.
1714 [Douglas Stebila (Sun Microsystems Laboratories)]
1716 *) Add code for kP+lQ timings to crypto/ec/ectest.c, and add SEC2
1717 curve secp160r1 to the tests.
1718 [Douglas Stebila (Sun Microsystems Laboratories)]
1720 *) Add the possibility to load symbols globally with DSO.
1721 [Götz Babin-Ebell <babin-ebell@trustcenter.de> via Richard Levitte]
1723 *) Add the functions ERR_set_mark() and ERR_pop_to_mark() for better
1724 control of the error stack.
1727 *) Add support for STORE in ENGINE.
1730 *) Add the STORE type. The intention is to provide a common interface
1731 to certificate and key stores, be they simple file-based stores, or
1732 HSM-type store, or LDAP stores, or...
1733 NOTE: The code is currently UNTESTED and isn't really used anywhere.
1736 *) Add a generic structure called OPENSSL_ITEM. This can be used to
1737 pass a list of arguments to any function as well as provide a way
1738 for a function to pass data back to the caller.
1741 *) Add the functions BUF_strndup() and BUF_memdup(). BUF_strndup()
1742 works like BUF_strdup() but can be used to duplicate a portion of
1743 a string. The copy gets NUL-terminated. BUF_memdup() duplicates
1747 *) Add the function sk_find_ex() which works like sk_find(), but will
1748 return an index to an element even if an exact match couldn't be
1749 found. The index is guaranteed to point at the element where the
1750 searched-for key would be inserted to preserve sorting order.
1753 *) Add the function OBJ_bsearch_ex() which works like OBJ_bsearch() but
1754 takes an extra flags argument for optional functionality. Currently,
1755 the following flags are defined:
1757 OBJ_BSEARCH_VALUE_ON_NOMATCH
1758 This one gets OBJ_bsearch_ex() to return a pointer to the first
1759 element where the comparing function returns a negative or zero
1762 OBJ_BSEARCH_FIRST_VALUE_ON_MATCH
1763 This one gets OBJ_bsearch_ex() to return a pointer to the first
1764 element where the comparing function returns zero. This is useful
1765 if there are more than one element where the comparing function
1769 *) Make it possible to create self-signed certificates with 'openssl ca'
1770 in such a way that the self-signed certificate becomes part of the
1771 CA database and uses the same mechanisms for serial number generation
1772 as all other certificate signing. The new flag '-selfsign' enables
1773 this functionality. Adapt CA.sh and CA.pl.in.
1776 *) Add functionality to check the public key of a certificate request
1777 against a given private. This is useful to check that a certificate
1778 request can be signed by that key (self-signing).
1781 *) Make it possible to have multiple active certificates with the same
1782 subject in the CA index file. This is done only if the keyword
1783 'unique_subject' is set to 'no' in the main CA section (default
1784 if 'CA_default') of the configuration file. The value is saved
1785 with the database itself in a separate index attribute file,
1786 named like the index file with '.attr' appended to the name.
1789 *) Generate muti valued AVAs using '+' notation in config files for
1793 *) Support for nameConstraints certificate extension.
1796 *) Support for policyConstraints certificate extension.
1799 *) Support for policyMappings certificate extension.
1802 *) Make sure the default DSA_METHOD implementation only uses its
1803 dsa_mod_exp() and/or bn_mod_exp() handlers if they are non-NULL,
1804 and change its own handlers to be NULL so as to remove unnecessary
1805 indirection. This lets alternative implementations fallback to the
1806 default implementation more easily.
1809 *) Support for directoryName in GeneralName related extensions
1813 *) Make it possible to link applications using Makefile.shared.
1814 Make that possible even when linking against static libraries!
1817 *) Support for single pass processing for S/MIME signing. This now
1818 means that S/MIME signing can be done from a pipe, in addition
1819 cleartext signing (multipart/signed type) is effectively streaming
1820 and the signed data does not need to be all held in memory.
1822 This is done with a new flag PKCS7_STREAM. When this flag is set
1823 PKCS7_sign() only initializes the PKCS7 structure and the actual signing
1824 is done after the data is output (and digests calculated) in
1825 SMIME_write_PKCS7().
1828 *) Add full support for -rpath/-R, both in shared libraries and
1829 applications, at least on the platforms where it's known how
1833 *) In crypto/ec/ec_mult.c, implement fast point multiplication with
1834 precomputation, based on wNAF splitting: EC_GROUP_precompute_mult()
1835 will now compute a table of multiples of the generator that
1836 makes subsequent invocations of EC_POINTs_mul() or EC_POINT_mul()
1837 faster (notably in the case of a single point multiplication,
1838 scalar * generator).
1839 [Nils Larsch, Bodo Moeller]
1841 *) IPv6 support for certificate extensions. The various extensions
1842 which use the IP:a.b.c.d can now take IPv6 addresses using the
1843 formats of RFC1884 2.2 . IPv6 addresses are now also displayed
1847 *) Added an ENGINE that implements RSA by performing private key
1848 exponentiations with the GMP library. The conversions to and from
1849 GMP's mpz_t format aren't optimised nor are any montgomery forms
1850 cached, and on x86 it appears OpenSSL's own performance has caught up.
1851 However there are likely to be other architectures where GMP could
1852 provide a boost. This ENGINE is not built in by default, but it can be
1853 specified at Configure time and should be accompanied by the necessary
1854 linker additions, eg;
1855 ./config -DOPENSSL_USE_GMP -lgmp
1858 *) "openssl engine" will not display ENGINE/DSO load failure errors when
1859 testing availability of engines with "-t" - the old behaviour is
1860 produced by increasing the feature's verbosity with "-tt".
1863 *) ECDSA routines: under certain error conditions uninitialized BN objects
1864 could be freed. Solution: make sure initialization is performed early
1865 enough. (Reported and fix supplied by Nils Larsch <nla@trustcenter.de>
1869 *) Key-generation can now be implemented in RSA_METHOD, DSA_METHOD
1870 and DH_METHOD (eg. by ENGINE implementations) to override the normal
1871 software implementations. For DSA and DH, parameter generation can
1872 also be overriden by providing the appropriate method callbacks.
1875 *) Change the "progress" mechanism used in key-generation and
1876 primality testing to functions that take a new BN_GENCB pointer in
1877 place of callback/argument pairs. The new API functions have "_ex"
1878 postfixes and the older functions are reimplemented as wrappers for
1879 the new ones. The OPENSSL_NO_DEPRECATED symbol can be used to hide
1880 declarations of the old functions to help (graceful) attempts to
1881 migrate to the new functions. Also, the new key-generation API
1882 functions operate on a caller-supplied key-structure and return
1883 success/failure rather than returning a key or NULL - this is to
1884 help make "keygen" another member function of RSA_METHOD etc.
1886 Example for using the new callback interface:
1888 int (*my_callback)(int a, int b, BN_GENCB *cb) = ...;
1892 BN_GENCB_set(&my_cb, my_callback, my_arg);
1894 return BN_is_prime_ex(some_bignum, BN_prime_checks, NULL, &cb);
1895 /* For the meaning of a, b in calls to my_callback(), see the
1896 * documentation of the function that calls the callback.
1897 * cb will point to my_cb; my_arg can be retrieved as cb->arg.
1898 * my_callback should return 1 if it wants BN_is_prime_ex()
1899 * to continue, or 0 to stop.
1904 *) Change the ZLIB compression method to be stateful, and make it
1905 available to TLS with the number defined in
1906 draft-ietf-tls-compression-04.txt.
1909 *) Add the ASN.1 structures and functions for CertificatePair, which
1910 is defined as follows (according to X.509_4thEditionDraftV6.pdf):
1912 CertificatePair ::= SEQUENCE {
1913 forward [0] Certificate OPTIONAL,
1914 reverse [1] Certificate OPTIONAL,
1915 -- at least one of the pair shall be present -- }
1917 Also implement the PEM functions to read and write certificate
1918 pairs, and defined the PEM tag as "CERTIFICATE PAIR".
1920 This needed to be defined, mostly for the sake of the LDAP
1921 attribute crossCertificatePair, but may prove useful elsewhere as
1925 *) Make it possible to inhibit symlinking of shared libraries in
1926 Makefile.shared, for Cygwin's sake.
1929 *) Extend the BIGNUM API by creating a function
1930 void BN_set_negative(BIGNUM *a, int neg);
1931 and a macro that behave like
1932 int BN_is_negative(const BIGNUM *a);
1934 to avoid the need to access 'a->neg' directly in applications.
1937 *) Implement fast modular reduction for pseudo-Mersenne primes
1938 used in NIST curves (crypto/bn/bn_nist.c, crypto/ec/ecp_nist.c).
1939 EC_GROUP_new_curve_GFp() will now automatically use this
1941 [Nils Larsch <nla@trustcenter.de>]
1943 *) Add new lock type (CRYPTO_LOCK_BN).
1946 *) Change the ENGINE framework to automatically load engines
1947 dynamically from specific directories unless they could be
1948 found to already be built in or loaded. Move all the
1949 current engines except for the cryptodev one to a new
1951 The engines in engines/ are built as shared libraries if
1952 the "shared" options was given to ./Configure or ./config.
1953 Otherwise, they are inserted in libcrypto.a.
1954 /usr/local/ssl/engines is the default directory for dynamic
1955 engines, but that can be overriden at configure time through
1956 the usual use of --prefix and/or --openssldir, and at run
1957 time with the environment variable OPENSSL_ENGINES.
1958 [Geoff Thorpe and Richard Levitte]
1960 *) Add Makefile.shared, a helper makefile to build shared
1961 libraries. Addapt Makefile.org.
1964 *) Add version info to Win32 DLLs.
1965 [Peter 'Luna' Runestig" <peter@runestig.com>]
1967 *) Add new 'medium level' PKCS#12 API. Certificates and keys
1968 can be added using this API to created arbitrary PKCS#12
1969 files while avoiding the low level API.
1971 New options to PKCS12_create(), key or cert can be NULL and
1972 will then be omitted from the output file. The encryption
1973 algorithm NIDs can be set to -1 for no encryption, the mac
1974 iteration count can be set to 0 to omit the mac.
1976 Enhance pkcs12 utility by making the -nokeys and -nocerts
1977 options work when creating a PKCS#12 file. New option -nomac
1978 to omit the mac, NONE can be set for an encryption algorithm.
1979 New code is modified to use the enhanced PKCS12_create()
1980 instead of the low level API.
1983 *) Extend ASN1 encoder to support indefinite length constructed
1984 encoding. This can output sequences tags and octet strings in
1985 this form. Modify pk7_asn1.c to support indefinite length
1986 encoding. This is experimental and needs additional code to
1987 be useful, such as an ASN1 bio and some enhanced streaming
1990 Extend template encode functionality so that tagging is passed
1991 down to the template encoder.
1994 *) Let 'openssl req' fail if an argument to '-newkey' is not
1995 recognized instead of using RSA as a default.
1998 *) Add support for ECC-based ciphersuites from draft-ietf-tls-ecc-01.txt.
1999 As these are not official, they are not included in "ALL";
2000 the "ECCdraft" ciphersuite group alias can be used to select them.
2001 [Vipul Gupta and Sumit Gupta (Sun Microsystems Laboratories)]
2003 *) Add ECDH engine support.
2004 [Nils Gura and Douglas Stebila (Sun Microsystems Laboratories)]
2006 *) Add ECDH in new directory crypto/ecdh/.
2007 [Douglas Stebila (Sun Microsystems Laboratories)]
2009 *) Let BN_rand_range() abort with an error after 100 iterations
2010 without success (which indicates a broken PRNG).
2013 *) Change BN_mod_sqrt() so that it verifies that the input value
2014 is really the square of the return value. (Previously,
2015 BN_mod_sqrt would show GIGO behaviour.)
2018 *) Add named elliptic curves over binary fields from X9.62, SECG,
2019 and WAP/WTLS; add OIDs that were still missing.
2021 [Sheueling Chang Shantz and Douglas Stebila
2022 (Sun Microsystems Laboratories)]
2024 *) Extend the EC library for elliptic curves over binary fields
2025 (new files ec2_smpl.c, ec2_smpt.c, ec2_mult.c in crypto/ec/).
2028 EC_GF2m_simple_method
2032 EC_GROUP_new_curve_GF2m
2033 EC_GROUP_set_curve_GF2m
2034 EC_GROUP_get_curve_GF2m
2035 EC_POINT_set_affine_coordinates_GF2m
2036 EC_POINT_get_affine_coordinates_GF2m
2037 EC_POINT_set_compressed_coordinates_GF2m
2039 Point compression for binary fields is disabled by default for
2040 patent reasons (compile with OPENSSL_EC_BIN_PT_COMP defined to
2043 As binary polynomials are represented as BIGNUMs, various members
2044 of the EC_GROUP and EC_POINT data structures can be shared
2045 between the implementations for prime fields and binary fields;
2046 the above ..._GF2m functions (except for EX_GROUP_new_curve_GF2m)
2047 are essentially identical to their ..._GFp counterparts.
2048 (For simplicity, the '..._GFp' prefix has been dropped from
2049 various internal method names.)
2051 An internal 'field_div' method (similar to 'field_mul' and
2052 'field_sqr') has been added; this is used only for binary fields.
2054 [Sheueling Chang Shantz and Douglas Stebila
2055 (Sun Microsystems Laboratories)]
2057 *) Optionally dispatch EC_POINT_mul(), EC_POINT_precompute_mult()
2058 through methods ('mul', 'precompute_mult').
2060 The generic implementations (now internally called 'ec_wNAF_mul'
2061 and 'ec_wNAF_precomputed_mult') remain the default if these
2062 methods are undefined.
2064 [Sheueling Chang Shantz and Douglas Stebila
2065 (Sun Microsystems Laboratories)]
2067 *) New function EC_GROUP_get_degree, which is defined through
2068 EC_METHOD. For curves over prime fields, this returns the bit
2069 length of the modulus.
2071 [Sheueling Chang Shantz and Douglas Stebila
2072 (Sun Microsystems Laboratories)]
2074 *) New functions EC_GROUP_dup, EC_POINT_dup.
2075 (These simply call ..._new and ..._copy).
2077 [Sheueling Chang Shantz and Douglas Stebila
2078 (Sun Microsystems Laboratories)]
2080 *) Add binary polynomial arithmetic software in crypto/bn/bn_gf2m.c.
2081 Polynomials are represented as BIGNUMs (where the sign bit is not
2082 used) in the following functions [macros]:
2085 BN_GF2m_sub [= BN_GF2m_add]
2086 BN_GF2m_mod [wrapper for BN_GF2m_mod_arr]
2087 BN_GF2m_mod_mul [wrapper for BN_GF2m_mod_mul_arr]
2088 BN_GF2m_mod_sqr [wrapper for BN_GF2m_mod_sqr_arr]
2090 BN_GF2m_mod_exp [wrapper for BN_GF2m_mod_exp_arr]
2091 BN_GF2m_mod_sqrt [wrapper for BN_GF2m_mod_sqrt_arr]
2092 BN_GF2m_mod_solve_quad [wrapper for BN_GF2m_mod_solve_quad_arr]
2093 BN_GF2m_cmp [= BN_ucmp]
2095 (Note that only the 'mod' functions are actually for fields GF(2^m).
2096 BN_GF2m_add() is misnomer, but this is for the sake of consistency.)
2098 For some functions, an the irreducible polynomial defining a
2099 field can be given as an 'unsigned int[]' with strictly
2100 decreasing elements giving the indices of those bits that are set;
2101 i.e., p[] represents the polynomial
2102 f(t) = t^p[0] + t^p[1] + ... + t^p[k]
2104 p[0] > p[1] > ... > p[k] = 0.
2105 This applies to the following functions:
2110 BN_GF2m_mod_inv_arr [wrapper for BN_GF2m_mod_inv]
2111 BN_GF2m_mod_div_arr [wrapper for BN_GF2m_mod_div]
2113 BN_GF2m_mod_sqrt_arr
2114 BN_GF2m_mod_solve_quad_arr
2118 Conversion can be performed by the following functions:
2123 bntest.c has additional tests for binary polynomial arithmetic.
2125 Two implementations for BN_GF2m_mod_div() are available.
2126 The default algorithm simply uses BN_GF2m_mod_inv() and
2127 BN_GF2m_mod_mul(). The alternative algorithm is compiled in only
2128 if OPENSSL_SUN_GF2M_DIV is defined (patent pending; read the
2129 copyright notice in crypto/bn/bn_gf2m.c before enabling it).
2131 [Sheueling Chang Shantz and Douglas Stebila
2132 (Sun Microsystems Laboratories)]
2134 *) Add new error code 'ERR_R_DISABLED' that can be used when some
2135 functionality is disabled at compile-time.
2136 [Douglas Stebila <douglas.stebila@sun.com>]
2138 *) Change default behaviour of 'openssl asn1parse' so that more
2139 information is visible when viewing, e.g., a certificate:
2141 Modify asn1_parse2 (crypto/asn1/asn1_par.c) so that in non-'dump'
2142 mode the content of non-printable OCTET STRINGs is output in a
2143 style similar to INTEGERs, but with '[HEX DUMP]' prepended to
2144 avoid the appearance of a printable string.
2145 [Nils Larsch <nla@trustcenter.de>]
2147 *) Add 'asn1_flag' and 'asn1_form' member to EC_GROUP with access
2149 EC_GROUP_set_asn1_flag()
2150 EC_GROUP_get_asn1_flag()
2151 EC_GROUP_set_point_conversion_form()
2152 EC_GROUP_get_point_conversion_form()
2153 These control ASN1 encoding details:
2154 - Curves (i.e., groups) are encoded explicitly unless asn1_flag
2155 has been set to OPENSSL_EC_NAMED_CURVE.
2156 - Points are encoded in uncompressed form by default; options for
2157 asn1_for are as for point2oct, namely
2158 POINT_CONVERSION_COMPRESSED
2159 POINT_CONVERSION_UNCOMPRESSED
2160 POINT_CONVERSION_HYBRID
2162 Also add 'seed' and 'seed_len' members to EC_GROUP with access
2165 EC_GROUP_get0_seed()
2166 EC_GROUP_get_seed_len()
2167 This is used only for ASN1 purposes (so far).
2168 [Nils Larsch <nla@trustcenter.de>]
2170 *) Add 'field_type' member to EC_METHOD, which holds the NID
2171 of the appropriate field type OID. The new function
2172 EC_METHOD_get_field_type() returns this value.
2173 [Nils Larsch <nla@trustcenter.de>]
2178 EC_POINT_point2hex()
2179 EC_POINT_hex2point()
2180 providing useful interfaces to EC_POINT_point2oct() and
2181 EC_POINT_oct2point().
2182 [Nils Larsch <nla@trustcenter.de>]
2184 *) Change internals of the EC library so that the functions
2185 EC_GROUP_set_generator()
2186 EC_GROUP_get_generator()
2187 EC_GROUP_get_order()
2188 EC_GROUP_get_cofactor()
2189 are implemented directly in crypto/ec/ec_lib.c and not dispatched
2190 to methods, which would lead to unnecessary code duplication when
2191 adding different types of curves.
2192 [Nils Larsch <nla@trustcenter.de> with input by Bodo Moeller]
2194 *) Implement compute_wNAF (crypto/ec/ec_mult.c) without BIGNUM
2195 arithmetic, and such that modified wNAFs are generated
2196 (which avoid length expansion in many cases).
2199 *) Add a function EC_GROUP_check_discriminant() (defined via
2200 EC_METHOD) that verifies that the curve discriminant is non-zero.
2202 Add a function EC_GROUP_check() that makes some sanity tests
2203 on a EC_GROUP, its generator and order. This includes
2204 EC_GROUP_check_discriminant().
2205 [Nils Larsch <nla@trustcenter.de>]
2207 *) Add ECDSA in new directory crypto/ecdsa/.
2209 Add applications 'openssl ecparam' and 'openssl ecdsa'
2210 (these are based on 'openssl dsaparam' and 'openssl dsa').
2212 ECDSA support is also included in various other files across the
2213 library. Most notably,
2214 - 'openssl req' now has a '-newkey ecdsa:file' option;
2215 - EVP_PKCS82PKEY (crypto/evp/evp_pkey.c) now can handle ECDSA;
2216 - X509_PUBKEY_get (crypto/asn1/x_pubkey.c) and
2217 d2i_PublicKey (crypto/asn1/d2i_pu.c) have been modified to make
2218 them suitable for ECDSA where domain parameters must be
2219 extracted before the specific public key;
2220 - ECDSA engine support has been added.
2221 [Nils Larsch <nla@trustcenter.de>]
2223 *) Include some named elliptic curves, and add OIDs from X9.62,
2224 SECG, and WAP/WTLS. Each curve can be obtained from the new
2226 EC_GROUP_new_by_curve_name(),
2227 and the list of available named curves can be obtained with
2228 EC_get_builtin_curves().
2229 Also add a 'curve_name' member to EC_GROUP objects, which can be
2231 EC_GROUP_set_curve_name()
2232 EC_GROUP_get_curve_name()
2233 [Nils Larsch <larsch@trustcenter.de, Bodo Moeller]
2235 *) Remove a few calls to bn_wexpand() in BN_sqr() (the one in there
2236 was actually never needed) and in BN_mul(). The removal in BN_mul()
2237 required a small change in bn_mul_part_recursive() and the addition
2238 of the functions bn_cmp_part_words(), bn_sub_part_words() and
2239 bn_add_part_words(), which do the same thing as bn_cmp_words(),
2240 bn_sub_words() and bn_add_words() except they take arrays with
2244 Changes between 0.9.7m and 0.9.7n [xx XXX xxxx]
2246 *) In the SSL/TLS server implementation, be strict about session ID
2247 context matching (which matters if an application uses a single
2248 external cache for different purposes). Previously,
2249 out-of-context reuse was forbidden only if SSL_VERIFY_PEER was
2250 set. This did ensure strict client verification, but meant that,
2251 with applications using a single external cache for quite
2252 different requirements, clients could circumvent ciphersuite
2253 restrictions for a given session ID context by starting a session
2254 in a different context.
2257 Changes between 0.9.7l and 0.9.7m [23 Feb 2007]
2259 *) Cleanse PEM buffers before freeing them since they may contain
2261 [Benjamin Bennett <ben@psc.edu>]
2263 *) Include "!eNULL" in SSL_DEFAULT_CIPHER_LIST to make sure that
2264 a ciphersuite string such as "DEFAULT:RSA" cannot enable
2265 authentication-only ciphersuites.
2268 *) Since AES128 and AES256 share a single mask bit in the logic of
2269 ssl/ssl_ciph.c, the code for masking out disabled ciphers needs a
2270 kludge to work properly if AES128 is available and AES256 isn't.
2273 *) Expand security boundary to match 1.1.1 module.
2276 *) Remove redundant features: hash file source, editing of test vectors
2277 modify fipsld to use external fips_premain.c signature.
2280 *) New perl script mkfipsscr.pl to create shell scripts or batch files to
2281 run algorithm test programs.
2284 *) Make algorithm test programs more tolerant of whitespace.
2287 *) Have SSL/TLS server implementation tolerate "mismatched" record
2288 protocol version while receiving ClientHello even if the
2289 ClientHello is fragmented. (The server can't insist on the
2290 particular protocol version it has chosen before the ServerHello
2291 message has informed the client about his choice.)
2294 *) Load error codes if they are not already present instead of using a
2295 static variable. This allows them to be cleanly unloaded and reloaded.
2298 Changes between 0.9.7k and 0.9.7l [28 Sep 2006]
2300 *) Introduce limits to prevent malicious keys being able to
2301 cause a denial of service. (CVE-2006-2940)
2302 [Steve Henson, Bodo Moeller]
2304 *) Fix ASN.1 parsing of certain invalid structures that can result
2305 in a denial of service. (CVE-2006-2937) [Steve Henson]
2307 *) Fix buffer overflow in SSL_get_shared_ciphers() function.
2308 (CVE-2006-3738) [Tavis Ormandy and Will Drewry, Google Security Team]
2310 *) Fix SSL client code which could crash if connecting to a
2311 malicious SSLv2 server. (CVE-2006-4343)
2312 [Tavis Ormandy and Will Drewry, Google Security Team]
2314 *) Change ciphersuite string processing so that an explicit
2315 ciphersuite selects this one ciphersuite (so that "AES256-SHA"
2316 will no longer include "AES128-SHA"), and any other similar
2317 ciphersuite (same bitmap) from *other* protocol versions (so that
2318 "RC4-MD5" will still include both the SSL 2.0 ciphersuite and the
2319 SSL 3.0/TLS 1.0 ciphersuite). This is a backport combining
2320 changes from 0.9.8b and 0.9.8d.
2323 Changes between 0.9.7j and 0.9.7k [05 Sep 2006]
2325 *) Avoid PKCS #1 v1.5 signature attack discovered by Daniel Bleichenbacher
2326 (CVE-2006-4339) [Ben Laurie and Google Security Team]
2328 *) Change the Unix randomness entropy gathering to use poll() when
2329 possible instead of select(), since the latter has some
2330 undesirable limitations.
2331 [Darryl Miles via Richard Levitte and Bodo Moeller]
2333 *) Disable rogue ciphersuites:
2335 - SSLv2 0x08 0x00 0x80 ("RC4-64-MD5")
2336 - SSLv3/TLSv1 0x00 0x61 ("EXP1024-RC2-CBC-MD5")
2337 - SSLv3/TLSv1 0x00 0x60 ("EXP1024-RC4-MD5")
2339 The latter two were purportedly from
2340 draft-ietf-tls-56-bit-ciphersuites-0[01].txt, but do not really
2343 Also deactive the remaining ciphersuites from
2344 draft-ietf-tls-56-bit-ciphersuites-01.txt. These are just as
2345 unofficial, and the ID has long expired.
2348 *) Fix RSA blinding Heisenbug (problems sometimes occured on
2349 dual-core machines) and other potential thread-safety issues.
2352 Changes between 0.9.7i and 0.9.7j [04 May 2006]
2354 *) Adapt fipsld and the build system to link against the validated FIPS
2355 module in FIPS mode.
2358 *) Fixes for VC++ 2005 build under Windows.
2361 *) Add new Windows build target VC-32-GMAKE for VC++. This uses GNU make
2362 from a Windows bash shell such as MSYS. It is autodetected from the
2363 "config" script when run from a VC++ environment. Modify standard VC++
2364 build to use fipscanister.o from the GNU make build.
2367 Changes between 0.9.7h and 0.9.7i [14 Oct 2005]
2369 *) Wrapped the definition of EVP_MAX_MD_SIZE in a #ifdef OPENSSL_FIPS.
2370 The value now differs depending on if you build for FIPS or not.
2371 BEWARE! A program linked with a shared FIPSed libcrypto can't be
2372 safely run with a non-FIPSed libcrypto, as it may crash because of
2373 the difference induced by this change.
2376 Changes between 0.9.7g and 0.9.7h [11 Oct 2005]
2378 *) Remove the functionality of SSL_OP_MSIE_SSLV2_RSA_PADDING
2379 (part of SSL_OP_ALL). This option used to disable the
2380 countermeasure against man-in-the-middle protocol-version
2381 rollback in the SSL 2.0 server implementation, which is a bad
2382 idea. (CVE-2005-2969)
2384 [Bodo Moeller; problem pointed out by Yutaka Oiwa (Research Center
2385 for Information Security, National Institute of Advanced Industrial
2386 Science and Technology [AIST], Japan)]
2388 *) Minimal support for X9.31 signatures and PSS padding modes. This is
2389 mainly for FIPS compliance and not fully integrated at this stage.
2392 *) For DSA signing, unless DSA_FLAG_NO_EXP_CONSTTIME is set, perform
2393 the exponentiation using a fixed-length exponent. (Otherwise,
2394 the information leaked through timing could expose the secret key
2395 after many signatures; cf. Bleichenbacher's attack on DSA with
2399 *) Make a new fixed-window mod_exp implementation the default for
2400 RSA, DSA, and DH private-key operations so that the sequence of
2401 squares and multiplies and the memory access pattern are
2402 independent of the particular secret key. This will mitigate
2403 cache-timing and potential related attacks.
2405 BN_mod_exp_mont_consttime() is the new exponentiation implementation,
2406 and this is automatically used by BN_mod_exp_mont() if the new flag
2407 BN_FLG_EXP_CONSTTIME is set for the exponent. RSA, DSA, and DH
2408 will use this BN flag for private exponents unless the flag
2409 RSA_FLAG_NO_EXP_CONSTTIME, DSA_FLAG_NO_EXP_CONSTTIME, or
2410 DH_FLAG_NO_EXP_CONSTTIME, respectively, is set.
2412 [Matthew D Wood (Intel Corp), with some changes by Bodo Moeller]
2414 *) Change the client implementation for SSLv23_method() and
2415 SSLv23_client_method() so that is uses the SSL 3.0/TLS 1.0
2416 Client Hello message format if the SSL_OP_NO_SSLv2 option is set.
2417 (Previously, the SSL 2.0 backwards compatible Client Hello
2418 message format would be used even with SSL_OP_NO_SSLv2.)
2421 *) Add support for smime-type MIME parameter in S/MIME messages which some
2425 *) New function BN_MONT_CTX_set_locked() to set montgomery parameters in
2426 a threadsafe manner. Modify rsa code to use new function and add calls
2427 to dsa and dh code (which had race conditions before).
2430 *) Include the fixed error library code in the C error file definitions
2431 instead of fixing them up at runtime. This keeps the error code
2432 structures constant.
2435 Changes between 0.9.7f and 0.9.7g [11 Apr 2005]
2437 [NB: OpenSSL 0.9.7h and later 0.9.7 patch levels were released after
2440 *) Fixes for newer kerberos headers. NB: the casts are needed because
2441 the 'length' field is signed on one version and unsigned on another
2442 with no (?) obvious way to tell the difference, without these VC++
2443 complains. Also the "definition" of FAR (blank) is no longer included
2444 nor is the error ENOMEM. KRB5_PRIVATE has to be set to 1 to pick up
2445 some needed definitions.
2448 *) Undo Cygwin change.
2451 *) Added support for proxy certificates according to RFC 3820.
2452 Because they may be a security thread to unaware applications,
2453 they must be explicitely allowed in run-time. See
2454 docs/HOWTO/proxy_certificates.txt for further information.
2457 Changes between 0.9.7e and 0.9.7f [22 Mar 2005]
2459 *) Use (SSL_RANDOM_VALUE - 4) bytes of pseudo random data when generating
2460 server and client random values. Previously
2461 (SSL_RANDOM_VALUE - sizeof(time_t)) would be used which would result in
2462 less random data when sizeof(time_t) > 4 (some 64 bit platforms).
2464 This change has negligible security impact because:
2466 1. Server and client random values still have 24 bytes of pseudo random
2469 2. Server and client random values are sent in the clear in the initial
2472 3. The master secret is derived using the premaster secret (48 bytes in
2473 size for static RSA ciphersuites) as well as client server and random
2476 The OpenSSL team would like to thank the UK NISCC for bringing this issue
2479 [Stephen Henson, reported by UK NISCC]
2481 *) Use Windows randomness collection on Cygwin.
2484 *) Fix hang in EGD/PRNGD query when communication socket is closed
2485 prematurely by EGD/PRNGD.
2486 [Darren Tucker <dtucker@zip.com.au> via Lutz Jänicke, resolves #1014]
2488 *) Prompt for pass phrases when appropriate for PKCS12 input format.
2491 *) Back-port of selected performance improvements from development
2492 branch, as well as improved support for PowerPC platforms.
2495 *) Add lots of checks for memory allocation failure, error codes to indicate
2496 failure and freeing up memory if a failure occurs.
2497 [Nauticus Networks SSL Team <openssl@nauticusnet.com>, Steve Henson]
2499 *) Add new -passin argument to dgst.
2502 *) Perform some character comparisons of different types in X509_NAME_cmp:
2503 this is needed for some certificates that reencode DNs into UTF8Strings
2504 (in violation of RFC3280) and can't or wont issue name rollover
2508 *) Make an explicit check during certificate validation to see that
2509 the CA setting in each certificate on the chain is correct. As a
2510 side effect always do the following basic checks on extensions,
2511 not just when there's an associated purpose to the check:
2513 - if there is an unhandled critical extension (unless the user
2514 has chosen to ignore this fault)
2515 - if the path length has been exceeded (if one is set at all)
2516 - that certain extensions fit the associated purpose (if one has
2520 Changes between 0.9.7d and 0.9.7e [25 Oct 2004]
2522 *) Avoid a race condition when CRLs are checked in a multi threaded
2523 environment. This would happen due to the reordering of the revoked
2524 entries during signature checking and serial number lookup. Now the
2525 encoding is cached and the serial number sort performed under a lock.
2526 Add new STACK function sk_is_sorted().
2529 *) Add Delta CRL to the extension code.
2532 *) Various fixes to s3_pkt.c so alerts are sent properly.
2533 [David Holmes <d.holmes@f5.com>]
2535 *) Reduce the chances of duplicate issuer name and serial numbers (in
2536 violation of RFC3280) using the OpenSSL certificate creation utilities.
2537 This is done by creating a random 64 bit value for the initial serial
2538 number when a serial number file is created or when a self signed
2539 certificate is created using 'openssl req -x509'. The initial serial
2540 number file is created using 'openssl x509 -next_serial' in CA.pl
2541 rather than being initialized to 1.
2544 Changes between 0.9.7c and 0.9.7d [17 Mar 2004]
2546 *) Fix null-pointer assignment in do_change_cipher_spec() revealed
2547 by using the Codenomicon TLS Test Tool (CVE-2004-0079)
2548 [Joe Orton, Steve Henson]
2550 *) Fix flaw in SSL/TLS handshaking when using Kerberos ciphersuites
2552 [Joe Orton, Steve Henson]
2554 *) Make it possible to have multiple active certificates with the same
2555 subject in the CA index file. This is done only if the keyword
2556 'unique_subject' is set to 'no' in the main CA section (default
2557 if 'CA_default') of the configuration file. The value is saved
2558 with the database itself in a separate index attribute file,
2559 named like the index file with '.attr' appended to the name.
2562 *) X509 verify fixes. Disable broken certificate workarounds when
2563 X509_V_FLAGS_X509_STRICT is set. Check CRL issuer has cRLSign set if
2564 keyUsage extension present. Don't accept CRLs with unhandled critical
2565 extensions: since verify currently doesn't process CRL extensions this
2566 rejects a CRL with *any* critical extensions. Add new verify error codes
2570 *) When creating an OCSP nonce use an OCTET STRING inside the extnValue.
2571 A clarification of RFC2560 will require the use of OCTET STRINGs and
2572 some implementations cannot handle the current raw format. Since OpenSSL
2573 copies and compares OCSP nonces as opaque blobs without any attempt at
2574 parsing them this should not create any compatibility issues.
2577 *) New md flag EVP_MD_CTX_FLAG_REUSE this allows md_data to be reused when
2578 calling EVP_MD_CTX_copy_ex() to avoid calling OPENSSL_malloc(). Without
2579 this HMAC (and other) operations are several times slower than OpenSSL
2583 *) Print out GeneralizedTime and UTCTime in ASN1_STRING_print_ex().
2584 [Peter Sylvester <Peter.Sylvester@EdelWeb.fr>]
2586 *) Use the correct content when signing type "other".
2589 Changes between 0.9.7b and 0.9.7c [30 Sep 2003]
2591 *) Fix various bugs revealed by running the NISCC test suite:
2593 Stop out of bounds reads in the ASN1 code when presented with
2594 invalid tags (CVE-2003-0543 and CVE-2003-0544).
2596 Free up ASN1_TYPE correctly if ANY type is invalid (CVE-2003-0545).
2598 If verify callback ignores invalid public key errors don't try to check
2599 certificate signature with the NULL public key.
2603 *) New -ignore_err option in ocsp application to stop the server
2604 exiting on the first error in a request.
2607 *) In ssl3_accept() (ssl/s3_srvr.c) only accept a client certificate
2608 if the server requested one: as stated in TLS 1.0 and SSL 3.0
2612 *) In ssl3_get_client_hello() (ssl/s3_srvr.c), tolerate additional
2613 extra data after the compression methods not only for TLS 1.0
2614 but also for SSL 3.0 (as required by the specification).
2615 [Bodo Moeller; problem pointed out by Matthias Loepfe]
2617 *) Change X509_certificate_type() to mark the key as exported/exportable
2618 when it's 512 *bits* long, not 512 bytes.
2621 *) Change AES_cbc_encrypt() so it outputs exact multiple of
2622 blocks during encryption.
2625 *) Various fixes to base64 BIO and non blocking I/O. On write
2626 flushes were not handled properly if the BIO retried. On read
2627 data was not being buffered properly and had various logic bugs.
2628 This also affects blocking I/O when the data being decoded is a
2632 *) Various S/MIME bugfixes and compatibility changes:
2633 output correct application/pkcs7 MIME type if
2634 PKCS7_NOOLDMIMETYPE is set. Tolerate some broken signatures.
2635 Output CR+LF for EOL if PKCS7_CRLFEOL is set (this makes opening
2636 of files as .eml work). Correctly handle very long lines in MIME
2640 Changes between 0.9.7a and 0.9.7b [10 Apr 2003]
2642 *) Countermeasure against the Klima-Pokorny-Rosa extension of
2643 Bleichbacher's attack on PKCS #1 v1.5 padding: treat
2644 a protocol version number mismatch like a decryption error
2645 in ssl3_get_client_key_exchange (ssl/s3_srvr.c).
2648 *) Turn on RSA blinding by default in the default implementation
2649 to avoid a timing attack. Applications that don't want it can call
2650 RSA_blinding_off() or use the new flag RSA_FLAG_NO_BLINDING.
2651 They would be ill-advised to do so in most cases.
2652 [Ben Laurie, Steve Henson, Geoff Thorpe, Bodo Moeller]
2654 *) Change RSA blinding code so that it works when the PRNG is not
2655 seeded (in this case, the secret RSA exponent is abused as
2656 an unpredictable seed -- if it is not unpredictable, there
2657 is no point in blinding anyway). Make RSA blinding thread-safe
2658 by remembering the creator's thread ID in rsa->blinding and
2659 having all other threads use local one-time blinding factors
2660 (this requires more computation than sharing rsa->blinding, but
2661 avoids excessive locking; and if an RSA object is not shared
2662 between threads, blinding will still be very fast).
2665 *) Fixed a typo bug that would cause ENGINE_set_default() to set an
2666 ENGINE as defaults for all supported algorithms irrespective of
2667 the 'flags' parameter. 'flags' is now honoured, so applications
2668 should make sure they are passing it correctly.
2671 *) Target "mingw" now allows native Windows code to be generated in
2672 the Cygwin environment as well as with the MinGW compiler.
2675 Changes between 0.9.7 and 0.9.7a [19 Feb 2003]
2677 *) In ssl3_get_record (ssl/s3_pkt.c), minimize information leaked
2678 via timing by performing a MAC computation even if incorrrect
2679 block cipher padding has been found. This is a countermeasure
2680 against active attacks where the attacker has to distinguish
2681 between bad padding and a MAC verification error. (CVE-2003-0078)
2683 [Bodo Moeller; problem pointed out by Brice Canvel (EPFL),
2684 Alain Hiltgen (UBS), Serge Vaudenay (EPFL), and
2685 Martin Vuagnoux (EPFL, Ilion)]
2687 *) Make the no-err option work as intended. The intention with no-err
2688 is not to have the whole error stack handling routines removed from
2689 libcrypto, it's only intended to remove all the function name and
2690 reason texts, thereby removing some of the footprint that may not
2691 be interesting if those errors aren't displayed anyway.
2693 NOTE: it's still possible for any application or module to have it's
2694 own set of error texts inserted. The routines are there, just not
2695 used by default when no-err is given.
2698 *) Add support for FreeBSD on IA64.
2699 [dirk.meyer@dinoex.sub.org via Richard Levitte, resolves #454]
2701 *) Adjust DES_cbc_cksum() so it returns the same value as the MIT
2702 Kerberos function mit_des_cbc_cksum(). Before this change,
2703 the value returned by DES_cbc_cksum() was like the one from
2704 mit_des_cbc_cksum(), except the bytes were swapped.
2705 [Kevin Greaney <Kevin.Greaney@hp.com> and Richard Levitte]
2707 *) Allow an application to disable the automatic SSL chain building.
2708 Before this a rather primitive chain build was always performed in
2709 ssl3_output_cert_chain(): an application had no way to send the
2710 correct chain if the automatic operation produced an incorrect result.
2712 Now the chain builder is disabled if either:
2714 1. Extra certificates are added via SSL_CTX_add_extra_chain_cert().
2716 2. The mode flag SSL_MODE_NO_AUTO_CHAIN is set.
2718 The reasoning behind this is that an application would not want the
2719 auto chain building to take place if extra chain certificates are
2720 present and it might also want a means of sending no additional
2721 certificates (for example the chain has two certificates and the
2725 *) Add the possibility to build without the ENGINE framework.
2726 [Steven Reddie <smr@essemer.com.au> via Richard Levitte]
2728 *) Under Win32 gmtime() can return NULL: check return value in
2729 OPENSSL_gmtime(). Add error code for case where gmtime() fails.
2732 *) DSA routines: under certain error conditions uninitialized BN objects
2733 could be freed. Solution: make sure initialization is performed early
2734 enough. (Reported and fix supplied by Ivan D Nestlerode <nestler@MIT.EDU>,
2735 Nils Larsch <nla@trustcenter.de> via PR#459)
2738 *) Another fix for SSLv2 session ID handling: the session ID was incorrectly
2739 checked on reconnect on the client side, therefore session resumption
2740 could still fail with a "ssl session id is different" error. This
2741 behaviour is masked when SSL_OP_ALL is used due to
2742 SSL_OP_MICROSOFT_SESS_ID_BUG being set.
2743 Behaviour observed by Crispin Flowerday <crispin@flowerday.cx> as
2744 followup to PR #377.
2747 *) IA-32 assembler support enhancements: unified ELF targets, support
2748 for SCO/Caldera platforms, fix for Cygwin shared build.
2751 *) Add support for FreeBSD on sparc64. As a consequence, support for
2752 FreeBSD on non-x86 processors is separate from x86 processors on
2753 the config script, much like the NetBSD support.
2754 [Richard Levitte & Kris Kennaway <kris@obsecurity.org>]
2756 Changes between 0.9.6h and 0.9.7 [31 Dec 2002]
2758 [NB: OpenSSL 0.9.6i and later 0.9.6 patch levels were released after
2761 *) Fix session ID handling in SSLv2 client code: the SERVER FINISHED
2762 code (06) was taken as the first octet of the session ID and the last
2763 octet was ignored consequently. As a result SSLv2 client side session
2764 caching could not have worked due to the session ID mismatch between
2766 Behaviour observed by Crispin Flowerday <crispin@flowerday.cx> as
2770 *) Change the declaration of needed Kerberos libraries to use EX_LIBS
2771 instead of the special (and badly supported) LIBKRB5. LIBKRB5 is
2775 *) The hw_ncipher.c engine requires dynamic locks. Unfortunately, it
2776 seems that in spite of existing for more than a year, many application
2777 author have done nothing to provide the necessary callbacks, which
2778 means that this particular engine will not work properly anywhere.
2779 This is a very unfortunate situation which forces us, in the name
2780 of usability, to give the hw_ncipher.c a static lock, which is part
2782 NOTE: This is for the 0.9.7 series ONLY. This hack will never
2783 appear in 0.9.8 or later. We EXPECT application authors to have
2784 dealt properly with this when 0.9.8 is released (unless we actually
2785 make such changes in the libcrypto locking code that changes will
2786 have to be made anyway).
2789 *) In asn1_d2i_read_bio() repeatedly call BIO_read() until all content
2790 octets have been read, EOF or an error occurs. Without this change
2791 some truncated ASN1 structures will not produce an error.
2794 *) Disable Heimdal support, since it hasn't been fully implemented.
2795 Still give the possibility to force the use of Heimdal, but with
2796 warnings and a request that patches get sent to openssl-dev.
2799 *) Add the VC-CE target, introduce the WINCE sysname, and add
2800 INSTALL.WCE and appropriate conditionals to make it build.
2801 [Steven Reddie <smr@essemer.com.au> via Richard Levitte]
2803 *) Change the DLL names for Cygwin to cygcrypto-x.y.z.dll and
2804 cygssl-x.y.z.dll, where x, y and z are the major, minor and
2805 edit numbers of the version.
2806 [Corinna Vinschen <vinschen@redhat.com> and Richard Levitte]
2808 *) Introduce safe string copy and catenation functions
2809 (BUF_strlcpy() and BUF_strlcat()).
2810 [Ben Laurie (CHATS) and Richard Levitte]
2812 *) Avoid using fixed-size buffers for one-line DNs.
2813 [Ben Laurie (CHATS)]
2815 *) Add BUF_MEM_grow_clean() to avoid information leakage when
2816 resizing buffers containing secrets, and use where appropriate.
2817 [Ben Laurie (CHATS)]
2819 *) Avoid using fixed size buffers for configuration file location.
2820 [Ben Laurie (CHATS)]
2822 *) Avoid filename truncation for various CA files.
2823 [Ben Laurie (CHATS)]
2825 *) Use sizeof in preference to magic numbers.
2826 [Ben Laurie (CHATS)]
2828 *) Avoid filename truncation in cert requests.
2829 [Ben Laurie (CHATS)]
2831 *) Add assertions to check for (supposedly impossible) buffer
2833 [Ben Laurie (CHATS)]
2835 *) Don't cache truncated DNS entries in the local cache (this could
2836 potentially lead to a spoofing attack).
2837 [Ben Laurie (CHATS)]
2839 *) Fix various buffers to be large enough for hex/decimal
2840 representations in a platform independent manner.
2841 [Ben Laurie (CHATS)]
2843 *) Add CRYPTO_realloc_clean() to avoid information leakage when
2844 resizing buffers containing secrets, and use where appropriate.
2845 [Ben Laurie (CHATS)]
2847 *) Add BIO_indent() to avoid much slightly worrying code to do
2849 [Ben Laurie (CHATS)]
2851 *) Convert sprintf()/BIO_puts() to BIO_printf().
2852 [Ben Laurie (CHATS)]
2854 *) buffer_gets() could terminate with the buffer only half
2856 [Ben Laurie (CHATS)]
2858 *) Add assertions to prevent user-supplied crypto functions from
2859 overflowing internal buffers by having large block sizes, etc.
2860 [Ben Laurie (CHATS)]
2862 *) New OPENSSL_assert() macro (similar to assert(), but enabled
2864 [Ben Laurie (CHATS)]
2866 *) Eliminate unused copy of key in RC4.
2867 [Ben Laurie (CHATS)]
2869 *) Eliminate unused and incorrectly sized buffers for IV in pem.h.
2870 [Ben Laurie (CHATS)]
2872 *) Fix off-by-one error in EGD path.
2873 [Ben Laurie (CHATS)]
2875 *) If RANDFILE path is too long, ignore instead of truncating.
2876 [Ben Laurie (CHATS)]
2878 *) Eliminate unused and incorrectly sized X.509 structure
2880 [Ben Laurie (CHATS)]
2882 *) Eliminate unused and dangerous function knumber().
2883 [Ben Laurie (CHATS)]
2885 *) Eliminate unused and dangerous structure, KSSL_ERR.
2886 [Ben Laurie (CHATS)]
2888 *) Protect against overlong session ID context length in an encoded
2889 session object. Since these are local, this does not appear to be
2891 [Ben Laurie (CHATS)]
2893 *) Change from security patch (see 0.9.6e below) that did not affect
2894 the 0.9.6 release series:
2896 Remote buffer overflow in SSL3 protocol - an attacker could
2897 supply an oversized master key in Kerberos-enabled versions.
2899 [Ben Laurie (CHATS)]
2901 *) Change the SSL kerb5 codes to match RFC 2712.
2904 *) Make -nameopt work fully for req and add -reqopt switch.
2905 [Michael Bell <michael.bell@rz.hu-berlin.de>, Steve Henson]
2907 *) The "block size" for block ciphers in CFB and OFB mode should be 1.
2908 [Steve Henson, reported by Yngve Nysaeter Pettersen <yngve@opera.com>]
2910 *) Make sure tests can be performed even if the corresponding algorithms
2911 have been removed entirely. This was also the last step to make
2912 OpenSSL compilable with DJGPP under all reasonable conditions.
2913 [Richard Levitte, Doug Kaufman <dkaufman@rahul.net>]
2915 *) Add cipher selection rules COMPLEMENTOFALL and COMPLEMENTOFDEFAULT
2916 to allow version independent disabling of normally unselected ciphers,
2917 which may be activated as a side-effect of selecting a single cipher.
2919 (E.g., cipher list string "RSA" enables ciphersuites that are left
2920 out of "ALL" because they do not provide symmetric encryption.
2921 "RSA:!COMPLEMEMENTOFALL" avoids these unsafe ciphersuites.)
2922 [Lutz Jaenicke, Bodo Moeller]
2924 *) Add appropriate support for separate platform-dependent build
2925 directories. The recommended way to make a platform-dependent
2926 build directory is the following (tested on Linux), maybe with
2929 # Place yourself outside of the OpenSSL source tree. In
2930 # this example, the environment variable OPENSSL_SOURCE
2931 # is assumed to contain the absolute OpenSSL source directory.
2932 mkdir -p objtree/"`uname -s`-`uname -r`-`uname -m`"
2933 cd objtree/"`uname -s`-`uname -r`-`uname -m`"
2934 (cd $OPENSSL_SOURCE; find . -type f) | while read F; do
2935 mkdir -p `dirname $F`
2936 ln -s $OPENSSL_SOURCE/$F $F
2939 To be absolutely sure not to disturb the source tree, a "make clean"
2940 is a good thing. If it isn't successfull, don't worry about it,
2941 it probably means the source directory is very clean.
2944 *) Make sure any ENGINE control commands make local copies of string
2945 pointers passed to them whenever necessary. Otherwise it is possible
2946 the caller may have overwritten (or deallocated) the original string
2947 data when a later ENGINE operation tries to use the stored values.
2948 [Götz Babin-Ebell <babinebell@trustcenter.de>]
2950 *) Improve diagnostics in file reading and command-line digests.
2951 [Ben Laurie aided and abetted by Solar Designer <solar@openwall.com>]
2953 *) Add AES modes CFB and OFB to the object database. Correct an
2954 error in AES-CFB decryption.
2957 *) Remove most calls to EVP_CIPHER_CTX_cleanup() in evp_enc.c, this
2958 allows existing EVP_CIPHER_CTX structures to be reused after
2959 calling EVP_*Final(). This behaviour is used by encryption
2960 BIOs and some applications. This has the side effect that
2961 applications must explicitly clean up cipher contexts with
2962 EVP_CIPHER_CTX_cleanup() or they will leak memory.
2965 *) Check the values of dna and dnb in bn_mul_recursive before calling
2966 bn_mul_comba (a non zero value means the a or b arrays do not contain
2967 n2 elements) and fallback to bn_mul_normal if either is not zero.
2970 *) Fix escaping of non-ASCII characters when using the -subj option
2971 of the "openssl req" command line tool. (Robert Joop <joop@fokus.gmd.de>)
2974 *) Make object definitions compliant to LDAP (RFC2256): SN is the short
2975 form for "surname", serialNumber has no short form.
2976 Use "mail" as the short name for "rfc822Mailbox" according to RFC2798;
2977 therefore remove "mail" short name for "internet 7".
2978 The OID for unique identifiers in X509 certificates is
2979 x500UniqueIdentifier, not uniqueIdentifier.
2980 Some more OID additions. (Michael Bell <michael.bell@rz.hu-berlin.de>)
2983 *) Add an "init" command to the ENGINE config module and auto initialize
2984 ENGINEs. Without any "init" command the ENGINE will be initialized
2985 after all ctrl commands have been executed on it. If init=1 the
2986 ENGINE is initailized at that point (ctrls before that point are run
2987 on the uninitialized ENGINE and after on the initialized one). If
2988 init=0 then the ENGINE will not be iniatialized at all.
2991 *) Fix the 'app_verify_callback' interface so that the user-defined
2992 argument is actually passed to the callback: In the
2993 SSL_CTX_set_cert_verify_callback() prototype, the callback
2994 declaration has been changed from
2997 int (*cb)(X509_STORE_CTX *,void *);
2998 in ssl_verify_cert_chain (ssl/ssl_cert.c), the call
2999 i=s->ctx->app_verify_callback(&ctx)
3000 has been changed into
3001 i=s->ctx->app_verify_callback(&ctx, s->ctx->app_verify_arg).
3003 To update applications using SSL_CTX_set_cert_verify_callback(),
3004 a dummy argument can be added to their callback functions.
3005 [D. K. Smetters <smetters@parc.xerox.com>]
3007 *) Added the '4758cca' ENGINE to support IBM 4758 cards.
3008 [Maurice Gittens <maurice@gittens.nl>, touchups by Geoff Thorpe]
3010 *) Add and OPENSSL_LOAD_CONF define which will cause
3011 OpenSSL_add_all_algorithms() to load the openssl.cnf config file.
3012 This allows older applications to transparently support certain
3013 OpenSSL features: such as crypto acceleration and dynamic ENGINE loading.
3014 Two new functions OPENSSL_add_all_algorithms_noconf() which will never
3015 load the config file and OPENSSL_add_all_algorithms_conf() which will
3016 always load it have also been added.
3019 *) Add the OFB, CFB and CTR (all with 128 bit feedback) to AES.
3020 Adjust NIDs and EVP layer.
3021 [Stephen Sprunk <stephen@sprunk.org> and Richard Levitte]
3023 *) Config modules support in openssl utility.
3025 Most commands now load modules from the config file,
3026 though in a few (such as version) this isn't done
3027 because it couldn't be used for anything.
3029 In the case of ca and req the config file used is
3030 the same as the utility itself: that is the -config
3031 command line option can be used to specify an
3035 *) Move default behaviour from OPENSSL_config(). If appname is NULL
3036 use "openssl_conf" if filename is NULL use default openssl config file.
3039 *) Add an argument to OPENSSL_config() to allow the use of an alternative
3040 config section name. Add a new flag to tolerate a missing config file
3041 and move code to CONF_modules_load_file().
3044 *) Support for crypto accelerator cards from Accelerated Encryption
3045 Processing, www.aep.ie. (Use engine 'aep')
3046 The support was copied from 0.9.6c [engine] and adapted/corrected
3047 to work with the new engine framework.
3048 [AEP Inc. and Richard Levitte]
3050 *) Support for SureWare crypto accelerator cards from Baltimore
3051 Technologies. (Use engine 'sureware')
3052 The support was copied from 0.9.6c [engine] and adapted
3053 to work with the new engine framework.
3056 *) Have the CHIL engine fork-safe (as defined by nCipher) and actually
3057 make the newer ENGINE framework commands for the CHIL engine work.
3058 [Toomas Kiisk <vix@cyber.ee> and Richard Levitte]
3060 *) Make it possible to produce shared libraries on ReliantUNIX.
3061 [Robert Dahlem <Robert.Dahlem@ffm2.siemens.de> via Richard Levitte]
3063 *) Add the configuration target debug-linux-ppro.
3064 Make 'openssl rsa' use the general key loading routines
3065 implemented in apps.c, and make those routines able to
3066 handle the key format FORMAT_NETSCAPE and the variant
3068 [Toomas Kiisk <vix@cyber.ee> via Richard Levitte]
3070 *) Fix a crashbug and a logic bug in hwcrhk_load_pubkey().
3071 [Toomas Kiisk <vix@cyber.ee> via Richard Levitte]
3073 *) Add -keyform to rsautl, and document -engine.
3074 [Richard Levitte, inspired by Toomas Kiisk <vix@cyber.ee>]
3076 *) Change BIO_new_file (crypto/bio/bss_file.c) to use new
3077 BIO_R_NO_SUCH_FILE error code rather than the generic
3078 ERR_R_SYS_LIB error code if fopen() fails with ENOENT.
3081 *) Add new functions
3083 ERR_peek_last_error_line
3084 ERR_peek_last_error_line_data.
3085 These are similar to
3088 ERR_peek_error_line_data,
3089 but report on the latest error recorded rather than the first one
3090 still in the error queue.
3091 [Ben Laurie, Bodo Moeller]
3093 *) default_algorithms option in ENGINE config module. This allows things
3095 default_algorithms = ALL
3096 default_algorithms = RSA, DSA, RAND, CIPHERS, DIGESTS
3099 *) Prelminary ENGINE config module.
3102 *) New experimental application configuration code.
3105 *) Change the AES code to follow the same name structure as all other
3106 symmetric ciphers, and behave the same way. Move everything to
3107 the directory crypto/aes, thereby obsoleting crypto/rijndael.
3108 [Stephen Sprunk <stephen@sprunk.org> and Richard Levitte]
3110 *) SECURITY: remove unsafe setjmp/signal interaction from ui_openssl.c.
3111 [Ben Laurie and Theo de Raadt]
3113 *) Add option to output public keys in req command.
3114 [Massimiliano Pala madwolf@openca.org]
3116 *) Use wNAFs in EC_POINTs_mul() for improved efficiency
3117 (up to about 10% better than before for P-192 and P-224).
3120 *) New functions/macros
3122 SSL_CTX_set_msg_callback(ctx, cb)
3123 SSL_CTX_set_msg_callback_arg(ctx, arg)
3124 SSL_set_msg_callback(ssl, cb)
3125 SSL_set_msg_callback_arg(ssl, arg)
3127 to request calling a callback function
3129 void cb(int write_p, int version, int content_type,
3130 const void *buf, size_t len, SSL *ssl, void *arg)
3132 whenever a protocol message has been completely received
3133 (write_p == 0) or sent (write_p == 1). Here 'version' is the
3134 protocol version according to which the SSL library interprets
3135 the current protocol message (SSL2_VERSION, SSL3_VERSION, or
3136 TLS1_VERSION). 'content_type' is 0 in the case of SSL 2.0, or
3137 the content type as defined in the SSL 3.0/TLS 1.0 protocol
3138 specification (change_cipher_spec(20), alert(21), handshake(22)).
3139 'buf' and 'len' point to the actual message, 'ssl' to the
3140 SSL object, and 'arg' is the application-defined value set by
3141 SSL[_CTX]_set_msg_callback_arg().
3143 'openssl s_client' and 'openssl s_server' have new '-msg' options
3144 to enable a callback that displays all protocol messages.
3147 *) Change the shared library support so shared libraries are built as
3148 soon as the corresponding static library is finished, and thereby get
3149 openssl and the test programs linked against the shared library.
3150 This still only happens when the keyword "shard" has been given to
3151 the configuration scripts.
3153 NOTE: shared library support is still an experimental thing, and
3154 backward binary compatibility is still not guaranteed.
3155 ["Maciej W. Rozycki" <macro@ds2.pg.gda.pl> and Richard Levitte]
3157 *) Add support for Subject Information Access extension.
3158 [Peter Sylvester <Peter.Sylvester@EdelWeb.fr>]
3160 *) Make BUF_MEM_grow() behaviour more consistent: Initialise to zero
3161 additional bytes when new memory had to be allocated, not just
3162 when reusing an existing buffer.
3165 *) New command line and configuration option 'utf8' for the req command.
3166 This allows field values to be specified as UTF8 strings.
3169 *) Add -multi and -mr options to "openssl speed" - giving multiple parallel
3170 runs for the former and machine-readable output for the latter.
3173 *) Add '-noemailDN' option to 'openssl ca'. This prevents inclusion
3174 of the e-mail address in the DN (i.e., it will go into a certificate
3175 extension only). The new configuration file option 'email_in_dn = no'
3176 has the same effect.
3177 [Massimiliano Pala madwolf@openca.org]
3179 *) Change all functions with names starting with des_ to be starting
3180 with DES_ instead. Add wrappers that are compatible with libdes,
3181 but are named _ossl_old_des_*. Finally, add macros that map the
3182 des_* symbols to the corresponding _ossl_old_des_* if libdes
3183 compatibility is desired. If OpenSSL 0.9.6c compatibility is
3184 desired, the des_* symbols will be mapped to DES_*, with one
3187 Since we provide two compatibility mappings, the user needs to
3188 define the macro OPENSSL_DES_LIBDES_COMPATIBILITY if libdes
3189 compatibility is desired. The default (i.e., when that macro
3190 isn't defined) is OpenSSL 0.9.6c compatibility.
3192 There are also macros that enable and disable the support of old
3193 des functions altogether. Those are OPENSSL_ENABLE_OLD_DES_SUPPORT
3194 and OPENSSL_DISABLE_OLD_DES_SUPPORT. If none or both of those
3195 are defined, the default will apply: to support the old des routines.
3197 In either case, one must include openssl/des.h to get the correct
3198 definitions. Do not try to just include openssl/des_old.h, that
3201 NOTE: This is a major break of an old API into a new one. Software
3202 authors are encouraged to switch to the DES_ style functions. Some
3203 time in the future, des_old.h and the libdes compatibility functions
3204 will be disable (i.e. OPENSSL_DISABLE_OLD_DES_SUPPORT will be the
3205 default), and then completely removed.
3208 *) Test for certificates which contain unsupported critical extensions.
3209 If such a certificate is found during a verify operation it is
3210 rejected by default: this behaviour can be overridden by either
3211 handling the new error X509_V_ERR_UNHANDLED_CRITICAL_EXTENSION or
3212 by setting the verify flag X509_V_FLAG_IGNORE_CRITICAL. A new function
3213 X509_supported_extension() has also been added which returns 1 if a
3214 particular extension is supported.
3217 *) Modify the behaviour of EVP cipher functions in similar way to digests
3218 to retain compatibility with existing code.
3221 *) Modify the behaviour of EVP_DigestInit() and EVP_DigestFinal() to retain
3222 compatibility with existing code. In particular the 'ctx' parameter does
3223 not have to be to be initialized before the call to EVP_DigestInit() and
3224 it is tidied up after a call to EVP_DigestFinal(). New function
3225 EVP_DigestFinal_ex() which does not tidy up the ctx. Similarly function
3226 EVP_MD_CTX_copy() changed to not require the destination to be
3227 initialized valid and new function EVP_MD_CTX_copy_ex() added which
3228 requires the destination to be valid.
3230 Modify all the OpenSSL digest calls to use EVP_DigestInit_ex(),
3231 EVP_DigestFinal_ex() and EVP_MD_CTX_copy_ex().
3234 *) Change ssl3_get_message (ssl/s3_both.c) and the functions using it
3235 so that complete 'Handshake' protocol structures are kept in memory
3236 instead of overwriting 'msg_type' and 'length' with 'body' data.
3239 *) Add an implementation of SSL_add_dir_cert_subjects_to_stack for Win32.
3240 [Massimo Santin via Richard Levitte]
3242 *) Major restructuring to the underlying ENGINE code. This includes
3243 reduction of linker bloat, separation of pure "ENGINE" manipulation
3244 (initialisation, etc) from functionality dealing with implementations
3245 of specific crypto iterfaces. This change also introduces integrated
3246 support for symmetric ciphers and digest implementations - so ENGINEs
3247 can now accelerate these by providing EVP_CIPHER and EVP_MD
3248 implementations of their own. This is detailed in crypto/engine/README
3249 as it couldn't be adequately described here. However, there are a few
3250 API changes worth noting - some RSA, DSA, DH, and RAND functions that
3251 were changed in the original introduction of ENGINE code have now
3252 reverted back - the hooking from this code to ENGINE is now a good
3253 deal more passive and at run-time, operations deal directly with
3254 RSA_METHODs, DSA_METHODs (etc) as they did before, rather than
3255 dereferencing through an ENGINE pointer any more. Also, the ENGINE
3256 functions dealing with BN_MOD_EXP[_CRT] handlers have been removed -
3257 they were not being used by the framework as there is no concept of a
3258 BIGNUM_METHOD and they could not be generalised to the new
3259 'ENGINE_TABLE' mechanism that underlies the new code. Similarly,
3260 ENGINE_cpy() has been removed as it cannot be consistently defined in
3264 *) Change ASN1_GENERALIZEDTIME_check() to allow fractional seconds.
3267 *) Change mkdef.pl to sort symbols that get the same entry number,
3268 and make sure the automatically generated functions ERR_load_*
3269 become part of libeay.num as well.
3272 *) New function SSL_renegotiate_pending(). This returns true once
3273 renegotiation has been requested (either SSL_renegotiate() call
3274 or HelloRequest/ClientHello receveived from the peer) and becomes
3275 false once a handshake has been completed.
3276 (For servers, SSL_renegotiate() followed by SSL_do_handshake()
3277 sends a HelloRequest, but does not ensure that a handshake takes
3278 place. SSL_renegotiate_pending() is useful for checking if the
3279 client has followed the request.)
3282 *) New SSL option SSL_OP_NO_SESSION_RESUMPTION_ON_RENEGOTIATION.
3283 By default, clients may request session resumption even during
3284 renegotiation (if session ID contexts permit); with this option,
3285 session resumption is possible only in the first handshake.
3287 SSL_OP_ALL is now 0x00000FFFL instead of 0x000FFFFFL. This makes
3288 more bits available for options that should not be part of
3289 SSL_OP_ALL (such as SSL_OP_NO_SESSION_RESUMPTION_ON_RENEGOTIATION).
3292 *) Add some demos for certificate and certificate request creation.
3295 *) Make maximum certificate chain size accepted from the peer application
3296 settable (SSL*_get/set_max_cert_list()), as proposed by
3297 "Douglas E. Engert" <deengert@anl.gov>.
3300 *) Add support for shared libraries for Unixware-7
3301 (Boyd Lynn Gerber <gerberb@zenez.com>).
3304 *) Add a "destroy" handler to ENGINEs that allows structural cleanup to
3305 be done prior to destruction. Use this to unload error strings from
3306 ENGINEs that load their own error strings. NB: This adds two new API
3307 functions to "get" and "set" this destroy handler in an ENGINE.
3310 *) Alter all existing ENGINE implementations (except "openssl" and
3311 "openbsd") to dynamically instantiate their own error strings. This
3312 makes them more flexible to be built both as statically-linked ENGINEs
3313 and self-contained shared-libraries loadable via the "dynamic" ENGINE.
3314 Also, add stub code to each that makes building them as self-contained
3315 shared-libraries easier (see README.ENGINE).
3318 *) Add a "dynamic" ENGINE that provides a mechanism for binding ENGINE
3319 implementations into applications that are completely implemented in
3320 self-contained shared-libraries. The "dynamic" ENGINE exposes control
3321 commands that can be used to configure what shared-library to load and
3322 to control aspects of the way it is handled. Also, made an update to
3323 the README.ENGINE file that brings its information up-to-date and
3324 provides some information and instructions on the "dynamic" ENGINE
3325 (ie. how to use it, how to build "dynamic"-loadable ENGINEs, etc).
3328 *) Make it possible to unload ranges of ERR strings with a new
3329 "ERR_unload_strings" function.
3332 *) Add a copy() function to EVP_MD.
3335 *) Make EVP_MD routines take a context pointer instead of just the
3336 md_data void pointer.
3339 *) Add flags to EVP_MD and EVP_MD_CTX. EVP_MD_FLAG_ONESHOT indicates
3340 that the digest can only process a single chunk of data
3341 (typically because it is provided by a piece of
3342 hardware). EVP_MD_CTX_FLAG_ONESHOT indicates that the application
3343 is only going to provide a single chunk of data, and hence the
3344 framework needn't accumulate the data for oneshot drivers.
3347 *) As with "ERR", make it possible to replace the underlying "ex_data"
3348 functions. This change also alters the storage and management of global
3349 ex_data state - it's now all inside ex_data.c and all "class" code (eg.
3350 RSA, BIO, SSL_CTX, etc) no longer stores its own STACKS and per-class
3351 index counters. The API functions that use this state have been changed
3352 to take a "class_index" rather than pointers to the class's local STACK
3353 and counter, and there is now an API function to dynamically create new
3354 classes. This centralisation allows us to (a) plug a lot of the
3355 thread-safety problems that existed, and (b) makes it possible to clean
3356 up all allocated state using "CRYPTO_cleanup_all_ex_data()". W.r.t. (b)
3357 such data would previously have always leaked in application code and
3358 workarounds were in place to make the memory debugging turn a blind eye
3359 to it. Application code that doesn't use this new function will still
3360 leak as before, but their memory debugging output will announce it now
3361 rather than letting it slide.
3363 Besides the addition of CRYPTO_cleanup_all_ex_data(), another API change
3364 induced by the "ex_data" overhaul is that X509_STORE_CTX_init() now
3365 has a return value to indicate success or failure.
3368 *) Make it possible to replace the underlying "ERR" functions such that the
3369 global state (2 LHASH tables and 2 locks) is only used by the "default"
3370 implementation. This change also adds two functions to "get" and "set"
3371 the implementation prior to it being automatically set the first time
3372 any other ERR function takes place. Ie. an application can call "get",
3373 pass the return value to a module it has just loaded, and that module
3374 can call its own "set" function using that value. This means the
3375 module's "ERR" operations will use (and modify) the error state in the
3376 application and not in its own statically linked copy of OpenSSL code.
3379 *) Give DH, DSA, and RSA types their own "**_up_ref()" function to increment
3380 reference counts. This performs normal REF_PRINT/REF_CHECK macros on
3381 the operation, and provides a more encapsulated way for external code
3382 (crypto/evp/ and ssl/) to do this. Also changed the evp and ssl code
3383 to use these functions rather than manually incrementing the counts.
3385 Also rename "DSO_up()" function to more descriptive "DSO_up_ref()".
3388 *) Add EVP test program.
3391 *) Add symmetric cipher support to ENGINE. Expect the API to change!
3394 *) New CRL functions: X509_CRL_set_version(), X509_CRL_set_issuer_name()
3395 X509_CRL_set_lastUpdate(), X509_CRL_set_nextUpdate(), X509_CRL_sort(),
3396 X509_REVOKED_set_serialNumber(), and X509_REVOKED_set_revocationDate().
3397 These allow a CRL to be built without having to access X509_CRL fields
3398 directly. Modify 'ca' application to use new functions.
3401 *) Move SSL_OP_TLS_ROLLBACK_BUG out of the SSL_OP_ALL list of recommended
3402 bug workarounds. Rollback attack detection is a security feature.
3403 The problem will only arise on OpenSSL servers when TLSv1 is not
3404 available (sslv3_server_method() or SSL_OP_NO_TLSv1).
3405 Software authors not wanting to support TLSv1 will have special reasons
3406 for their choice and can explicitly enable this option.
3407 [Bodo Moeller, Lutz Jaenicke]
3409 *) Rationalise EVP so it can be extended: don't include a union of
3410 cipher/digest structures, add init/cleanup functions for EVP_MD_CTX
3411 (similar to those existing for EVP_CIPHER_CTX).
3416 EVP_MD_CTX_init(&md); /* new function call */
3417 EVP_DigestInit(&md, EVP_sha1());
3418 EVP_DigestUpdate(&md, in, len);
3419 EVP_DigestFinal(&md, out, NULL);
3420 EVP_MD_CTX_cleanup(&md); /* new function call */
3424 *) Make DES key schedule conform to the usual scheme, as well as
3425 correcting its structure. This means that calls to DES functions
3426 now have to pass a pointer to a des_key_schedule instead of a
3427 plain des_key_schedule (which was actually always a pointer
3430 des_key_schedule ks;
3432 des_set_key_checked(..., &ks);
3433 des_ncbc_encrypt(..., &ks, ...);
3435 (Note that a later change renames 'des_...' into 'DES_...'.)
3438 *) Initial reduction of linker bloat: the use of some functions, such as
3439 PEM causes large amounts of unused functions to be linked in due to
3440 poor organisation. For example pem_all.c contains every PEM function
3441 which has a knock on effect of linking in large amounts of (unused)
3442 ASN1 code. Grouping together similar functions and splitting unrelated
3443 functions prevents this.
3446 *) Cleanup of EVP macros.
3449 *) Change historical references to {NID,SN,LN}_des_ede and ede3 to add the
3450 correct _ecb suffix.
3453 *) Add initial OCSP responder support to ocsp application. The
3454 revocation information is handled using the text based index
3455 use by the ca application. The responder can either handle
3456 requests generated internally, supplied in files (for example
3457 via a CGI script) or using an internal minimal server.
3460 *) Add configuration choices to get zlib compression for TLS.
3463 *) Changes to Kerberos SSL for RFC 2712 compliance:
3464 1. Implemented real KerberosWrapper, instead of just using
3465 KRB5 AP_REQ message. [Thanks to Simon Wilkinson <sxw@sxw.org.uk>]
3466 2. Implemented optional authenticator field of KerberosWrapper.
3468 Added openssl-style ASN.1 macros for Kerberos ticket, ap_req,
3469 and authenticator structs; see crypto/krb5/.
3471 Generalized Kerberos calls to support multiple Kerberos libraries.
3472 [Vern Staats <staatsvr@asc.hpc.mil>,
3473 Jeffrey Altman <jaltman@columbia.edu>
3474 via Richard Levitte]
3476 *) Cause 'openssl speed' to use fully hard-coded DSA keys as it
3477 already does with RSA. testdsa.h now has 'priv_key/pub_key'
3478 values for each of the key sizes rather than having just
3479 parameters (and 'speed' generating keys each time).
3482 *) Speed up EVP routines.
3485 type 8 bytes 64 bytes 256 bytes 1024 bytes 8192 bytes
3486 des-cbc 4408.85k 5560.51k 5778.46k 5862.20k 5825.16k
3487 des-cbc 4389.55k 5571.17k 5792.23k 5846.91k 5832.11k
3488 des-cbc 4394.32k 5575.92k 5807.44k 5848.37k 5841.30k
3490 des-cbc 3482.66k 5069.49k 5496.39k 5614.16k 5639.28k
3491 des-cbc 3480.74k 5068.76k 5510.34k 5609.87k 5635.52k
3492 des-cbc 3483.72k 5067.62k 5504.60k 5708.01k 5724.80k
3495 des-cbc 4660.16k 5650.19k 5807.19k 5827.13k 5783.32k
3497 des-cbc 3624.96k 5258.21k 5530.91k 5624.30k 5628.26k
3500 *) Added the OS2-EMX target.
3501 ["Brian Havard" <brianh@kheldar.apana.org.au> and Richard Levitte]
3503 *) Rewrite apps to use NCONF routines instead of the old CONF. New functions
3504 to support NCONF routines in extension code. New function CONF_set_nconf()
3505 to allow functions which take an NCONF to also handle the old LHASH
3506 structure: this means that the old CONF compatible routines can be
3507 retained (in particular wrt extensions) without having to duplicate the
3508 code. New function X509V3_add_ext_nconf_sk to add extensions to a stack.
3511 *) Enhance the general user interface with mechanisms for inner control
3512 and with possibilities to have yes/no kind of prompts.
3515 *) Change all calls to low level digest routines in the library and
3516 applications to use EVP. Add missing calls to HMAC_cleanup() and
3517 don't assume HMAC_CTX can be copied using memcpy().
3518 [Verdon Walker <VWalker@novell.com>, Steve Henson]
3520 *) Add the possibility to control engines through control names but with
3521 arbitrary arguments instead of just a string.
3522 Change the key loaders to take a UI_METHOD instead of a callback
3523 function pointer. NOTE: this breaks binary compatibility with earlier
3524 versions of OpenSSL [engine].
3525 Adapt the nCipher code for these new conditions and add a card insertion
3529 *) Enhance the general user interface with mechanisms to better support
3530 dialog box interfaces, application-defined prompts, the possibility
3531 to use defaults (for example default passwords from somewhere else)
3532 and interrupts/cancellations.
3535 *) Tidy up PKCS#12 attribute handling. Add support for the CSP name
3536 attribute in PKCS#12 files, add new -CSP option to pkcs12 utility.
3539 *) Fix a memory leak in 'sk_dup()' in the case reallocation fails. (Also
3540 tidy up some unnecessarily weird code in 'sk_new()').
3541 [Geoff, reported by Diego Tartara <dtartara@novamens.com>]
3543 *) Change the key loading routines for ENGINEs to use the same kind
3544 callback (pem_password_cb) as all other routines that need this
3548 *) Increase ENTROPY_NEEDED to 32 bytes, as Rijndael can operate with
3549 256 bit (=32 byte) keys. Of course seeding with more entropy bytes
3550 than this minimum value is recommended.
3553 *) New random seeder for OpenVMS, using the system process statistics
3554 that are easily reachable.
3557 *) Windows apparently can't transparently handle global
3558 variables defined in DLLs. Initialisations such as:
3560 const ASN1_ITEM *it = &ASN1_INTEGER_it;
3562 wont compile. This is used by the any applications that need to
3563 declare their own ASN1 modules. This was fixed by adding the option
3564 EXPORT_VAR_AS_FN to all Win32 platforms, although this isn't strictly
3565 needed for static libraries under Win32.
3568 *) New functions X509_PURPOSE_set() and X509_TRUST_set() to handle
3569 setting of purpose and trust fields. New X509_STORE trust and
3570 purpose functions and tidy up setting in other SSL functions.
3573 *) Add copies of X509_STORE_CTX fields and callbacks to X509_STORE
3574 structure. These are inherited by X509_STORE_CTX when it is
3575 initialised. This allows various defaults to be set in the
3576 X509_STORE structure (such as flags for CRL checking and custom
3577 purpose or trust settings) for functions which only use X509_STORE_CTX
3578 internally such as S/MIME.
3580 Modify X509_STORE_CTX_purpose_inherit() so it only sets purposes and
3581 trust settings if they are not set in X509_STORE. This allows X509_STORE
3582 purposes and trust (in S/MIME for example) to override any set by default.
3584 Add command line options for CRL checking to smime, s_client and s_server
3588 *) Initial CRL based revocation checking. If the CRL checking flag(s)
3589 are set then the CRL is looked up in the X509_STORE structure and
3590 its validity and signature checked, then if the certificate is found
3591 in the CRL the verify fails with a revoked error.
3593 Various new CRL related callbacks added to X509_STORE_CTX structure.
3595 Command line options added to 'verify' application to support this.
3597 This needs some additional work, such as being able to handle multiple
3598 CRLs with different times, extension based lookup (rather than just
3599 by subject name) and ultimately more complete V2 CRL extension
3603 *) Add a general user interface API (crypto/ui/). This is designed
3604 to replace things like des_read_password and friends (backward
3605 compatibility functions using this new API are provided).
3606 The purpose is to remove prompting functions from the DES code
3607 section as well as provide for prompting through dialog boxes in
3608 a window system and the like.
3611 *) Add "ex_data" support to ENGINE so implementations can add state at a
3612 per-structure level rather than having to store it globally.
3615 *) Make it possible for ENGINE structures to be copied when retrieved by
3616 ENGINE_by_id() if the ENGINE specifies a new flag: ENGINE_FLAGS_BY_ID_COPY.
3617 This causes the "original" ENGINE structure to act like a template,
3618 analogous to the RSA vs. RSA_METHOD type of separation. Because of this
3619 operational state can be localised to each ENGINE structure, despite the
3620 fact they all share the same "methods". New ENGINE structures returned in
3621 this case have no functional references and the return value is the single
3622 structural reference. This matches the single structural reference returned
3623 by ENGINE_by_id() normally, when it is incremented on the pre-existing
3627 *) Fix ASN1 decoder when decoding type ANY and V_ASN1_OTHER: since this
3628 needs to match any other type at all we need to manually clear the
3632 *) Changes to the "openssl engine" utility to include;
3633 - verbosity levels ('-v', '-vv', and '-vvv') that provide information
3634 about an ENGINE's available control commands.
3635 - executing control commands from command line arguments using the
3636 '-pre' and '-post' switches. '-post' is only used if '-t' is
3637 specified and the ENGINE is successfully initialised. The syntax for
3638 the individual commands are colon-separated, for example;
3639 openssl engine chil -pre FORK_CHECK:0 -pre SO_PATH:/lib/test.so
3642 *) New dynamic control command support for ENGINEs. ENGINEs can now
3643 declare their own commands (numbers), names (strings), descriptions,
3644 and input types for run-time discovery by calling applications. A
3645 subset of these commands are implicitly classed as "executable"
3646 depending on their input type, and only these can be invoked through
3647 the new string-based API function ENGINE_ctrl_cmd_string(). (Eg. this
3648 can be based on user input, config files, etc). The distinction is
3649 that "executable" commands cannot return anything other than a boolean
3650 result and can only support numeric or string input, whereas some
3651 discoverable commands may only be for direct use through
3652 ENGINE_ctrl(), eg. supporting the exchange of binary data, function
3653 pointers, or other custom uses. The "executable" commands are to
3654 support parameterisations of ENGINE behaviour that can be
3655 unambiguously defined by ENGINEs and used consistently across any
3656 OpenSSL-based application. Commands have been added to all the
3657 existing hardware-supporting ENGINEs, noticeably "SO_PATH" to allow
3658 control over shared-library paths without source code alterations.
3661 *) Changed all ENGINE implementations to dynamically allocate their
3662 ENGINEs rather than declaring them statically. Apart from this being
3663 necessary with the removal of the ENGINE_FLAGS_MALLOCED distinction,
3664 this also allows the implementations to compile without using the
3665 internal engine_int.h header.
3668 *) Minor adjustment to "rand" code. RAND_get_rand_method() now returns a
3669 'const' value. Any code that should be able to modify a RAND_METHOD
3670 should already have non-const pointers to it (ie. they should only
3671 modify their own ones).
3674 *) Made a variety of little tweaks to the ENGINE code.
3675 - "atalla" and "ubsec" string definitions were moved from header files
3676 to C code. "nuron" string definitions were placed in variables
3677 rather than hard-coded - allowing parameterisation of these values
3678 later on via ctrl() commands.
3679 - Removed unused "#if 0"'d code.
3680 - Fixed engine list iteration code so it uses ENGINE_free() to release
3681 structural references.
3682 - Constified the RAND_METHOD element of ENGINE structures.
3683 - Constified various get/set functions as appropriate and added
3684 missing functions (including a catch-all ENGINE_cpy that duplicates
3685 all ENGINE values onto a new ENGINE except reference counts/state).
3686 - Removed NULL parameter checks in get/set functions. Setting a method
3687 or function to NULL is a way of cancelling out a previously set
3688 value. Passing a NULL ENGINE parameter is just plain stupid anyway
3689 and doesn't justify the extra error symbols and code.
3690 - Deprecate the ENGINE_FLAGS_MALLOCED define and move the area for
3691 flags from engine_int.h to engine.h.
3692 - Changed prototypes for ENGINE handler functions (init(), finish(),
3693 ctrl(), key-load functions, etc) to take an (ENGINE*) parameter.
3696 *) Implement binary inversion algorithm for BN_mod_inverse in addition
3697 to the algorithm using long division. The binary algorithm can be
3698 used only if the modulus is odd. On 32-bit systems, it is faster
3699 only for relatively small moduli (roughly 20-30% for 128-bit moduli,
3700 roughly 5-15% for 256-bit moduli), so we use it only for moduli
3701 up to 450 bits. In 64-bit environments, the binary algorithm
3702 appears to be advantageous for much longer moduli; here we use it
3703 for moduli up to 2048 bits.
3706 *) Rewrite CHOICE field setting in ASN1_item_ex_d2i(). The old code
3707 could not support the combine flag in choice fields.
3710 *) Add a 'copy_extensions' option to the 'ca' utility. This copies
3711 extensions from a certificate request to the certificate.
3714 *) Allow multiple 'certopt' and 'nameopt' options to be separated
3715 by commas. Add 'namopt' and 'certopt' options to the 'ca' config
3716 file: this allows the display of the certificate about to be
3717 signed to be customised, to allow certain fields to be included
3718 or excluded and extension details. The old system didn't display
3719 multicharacter strings properly, omitted fields not in the policy
3720 and couldn't display additional details such as extensions.
3723 *) Function EC_POINTs_mul for multiple scalar multiplication
3724 of an arbitrary number of elliptic curve points
3725 \sum scalars[i]*points[i],
3726 optionally including the generator defined for the EC_GROUP:
3727 scalar*generator + \sum scalars[i]*points[i].
3729 EC_POINT_mul is a simple wrapper function for the typical case
3730 that the point list has just one item (besides the optional
3734 *) First EC_METHODs for curves over GF(p):
3736 EC_GFp_simple_method() uses the basic BN_mod_mul and BN_mod_sqr
3737 operations and provides various method functions that can also
3738 operate with faster implementations of modular arithmetic.
3740 EC_GFp_mont_method() reuses most functions that are part of
3741 EC_GFp_simple_method, but uses Montgomery arithmetic.
3743 [Bodo Moeller; point addition and point doubling
3744 implementation directly derived from source code provided by
3745 Lenka Fibikova <fibikova@exp-math.uni-essen.de>]
3747 *) Framework for elliptic curves (crypto/ec/ec.h, crypto/ec/ec_lcl.h,
3748 crypto/ec/ec_lib.c):
3750 Curves are EC_GROUP objects (with an optional group generator)
3751 based on EC_METHODs that are built into the library.
3753 Points are EC_POINT objects based on EC_GROUP objects.
3755 Most of the framework would be able to handle curves over arbitrary
3756 finite fields, but as there are no obvious types for fields other
3757 than GF(p), some functions are limited to that for now.
3760 *) Add the -HTTP option to s_server. It is similar to -WWW, but requires
3761 that the file contains a complete HTTP response.
3764 *) Add the ec directory to mkdef.pl and mkfiles.pl. In mkdef.pl
3765 change the def and num file printf format specifier from "%-40sXXX"
3766 to "%-39s XXX". The latter will always guarantee a space after the
3767 field while the former will cause them to run together if the field
3768 is 40 of more characters long.
3771 *) Constify the cipher and digest 'method' functions and structures
3772 and modify related functions to take constant EVP_MD and EVP_CIPHER
3776 *) Hide BN_CTX structure details in bn_lcl.h instead of publishing them
3777 in <openssl/bn.h>. Also further increase BN_CTX_NUM to 32.
3780 *) Modify EVP_Digest*() routines so they now return values. Although the
3781 internal software routines can never fail additional hardware versions
3785 *) Clean up crypto/err/err.h and change some error codes to avoid conflicts:
3787 Previously ERR_R_FATAL was too small and coincided with ERR_LIB_PKCS7
3788 (= ERR_R_PKCS7_LIB); it is now 64 instead of 32.
3791 ERR_R_NESTED_ASN1_ERROR
3793 ERR_R_MISSING_ASN1_EOS
3794 were 4 .. 9, conflicting with
3795 ERR_LIB_RSA (= ERR_R_RSA_LIB)
3797 ERR_LIB_PEM (= ERR_R_PEM_LIB).
3798 They are now 58 .. 63 (i.e., just below ERR_R_FATAL).
3800 Add new error code 'ERR_R_INTERNAL_ERROR'.
3803 *) Don't overuse locks in crypto/err/err.c: For data retrieval, CRYPTO_r_lock
3807 *) New option '-subj arg' for 'openssl req' and 'openssl ca'. This
3808 sets the subject name for a new request or supersedes the
3809 subject name in a given request. Formats that can be parsed are
3810 'CN=Some Name, OU=myOU, C=IT'
3812 'CN=Some Name/OU=myOU/C=IT'.
3814 Add options '-batch' and '-verbose' to 'openssl req'.
3815 [Massimiliano Pala <madwolf@hackmasters.net>]
3817 *) Introduce the possibility to access global variables through
3818 functions on platform were that's the best way to handle exporting
3819 global variables in shared libraries. To enable this functionality,
3820 one must configure with "EXPORT_VAR_AS_FN" or defined the C macro
3821 "OPENSSL_EXPORT_VAR_AS_FUNCTION" in crypto/opensslconf.h (the latter
3822 is normally done by Configure or something similar).
3824 To implement a global variable, use the macro OPENSSL_IMPLEMENT_GLOBAL
3825 in the source file (foo.c) like this:
3827 OPENSSL_IMPLEMENT_GLOBAL(int,foo)=1;
3828 OPENSSL_IMPLEMENT_GLOBAL(double,bar);
3830 To declare a global variable, use the macros OPENSSL_DECLARE_GLOBAL
3831 and OPENSSL_GLOBAL_REF in the header file (foo.h) like this:
3833 OPENSSL_DECLARE_GLOBAL(int,foo);
3834 #define foo OPENSSL_GLOBAL_REF(foo)
3835 OPENSSL_DECLARE_GLOBAL(double,bar);
3836 #define bar OPENSSL_GLOBAL_REF(bar)
3838 The #defines are very important, and therefore so is including the
3839 header file everywhere where the defined globals are used.
3841 The macro OPENSSL_EXPORT_VAR_AS_FUNCTION also affects the definition
3842 of ASN.1 items, but that structure is a bit different.
3844 The largest change is in util/mkdef.pl which has been enhanced with
3845 better and easier to understand logic to choose which symbols should
3846 go into the Windows .def files as well as a number of fixes and code
3847 cleanup (among others, algorithm keywords are now sorted
3848 lexicographically to avoid constant rewrites).
3851 *) In BN_div() keep a copy of the sign of 'num' before writing the
3852 result to 'rm' because if rm==num the value will be overwritten
3853 and produce the wrong result if 'num' is negative: this caused
3854 problems with BN_mod() and BN_nnmod().
3857 *) Function OCSP_request_verify(). This checks the signature on an
3858 OCSP request and verifies the signer certificate. The signer
3859 certificate is just checked for a generic purpose and OCSP request
3863 *) Add OCSP_check_validity() function to check the validity of OCSP
3864 responses. OCSP responses are prepared in real time and may only
3865 be a few seconds old. Simply checking that the current time lies
3866 between thisUpdate and nextUpdate max reject otherwise valid responses
3867 caused by either OCSP responder or client clock inaccuracy. Instead
3868 we allow thisUpdate and nextUpdate to fall within a certain period of
3869 the current time. The age of the response can also optionally be
3870 checked. Two new options -validity_period and -status_age added to
3874 *) If signature or public key algorithm is unrecognized print out its
3875 OID rather that just UNKNOWN.
3878 *) Change OCSP_cert_to_id() to tolerate a NULL subject certificate and
3879 OCSP_cert_id_new() a NULL serialNumber. This allows a partial certificate
3880 ID to be generated from the issuer certificate alone which can then be
3881 passed to OCSP_id_issuer_cmp().
3884 *) New compilation option ASN1_ITEM_FUNCTIONS. This causes the new
3885 ASN1 modules to export functions returning ASN1_ITEM pointers
3886 instead of the ASN1_ITEM structures themselves. This adds several
3887 new macros which allow the underlying ASN1 function/structure to
3888 be accessed transparently. As a result code should not use ASN1_ITEM
3889 references directly (such as &X509_it) but instead use the relevant
3890 macros (such as ASN1_ITEM_rptr(X509)). This option is to allow
3891 use of the new ASN1 code on platforms where exporting structures
3892 is problematical (for example in shared libraries) but exporting
3893 functions returning pointers to structures is not.
3896 *) Add support for overriding the generation of SSL/TLS session IDs.
3897 These callbacks can be registered either in an SSL_CTX or per SSL.
3898 The purpose of this is to allow applications to control, if they wish,
3899 the arbitrary values chosen for use as session IDs, particularly as it
3900 can be useful for session caching in multiple-server environments. A
3901 command-line switch for testing this (and any client code that wishes
3902 to use such a feature) has been added to "s_server".
3903 [Geoff Thorpe, Lutz Jaenicke]
3905 *) Modify mkdef.pl to recognise and parse preprocessor conditionals
3906 of the form '#if defined(...) || defined(...) || ...' and
3907 '#if !defined(...) && !defined(...) && ...'. This also avoids
3908 the growing number of special cases it was previously handling.
3911 *) Make all configuration macros available for application by making
3912 sure they are available in opensslconf.h, by giving them names starting
3913 with "OPENSSL_" to avoid conflicts with other packages and by making
3914 sure e_os2.h will cover all platform-specific cases together with
3916 Additionally, it is now possible to define configuration/platform-
3917 specific names (called "system identities"). In the C code, these
3918 are prefixed with "OPENSSL_SYSNAME_". e_os2.h will create another
3919 macro with the name beginning with "OPENSSL_SYS_", which is determined
3920 from "OPENSSL_SYSNAME_*" or compiler-specific macros depending on
3924 *) New option -set_serial to 'req' and 'x509' this allows the serial
3925 number to use to be specified on the command line. Previously self
3926 signed certificates were hard coded with serial number 0 and the
3927 CA options of 'x509' had to use a serial number in a file which was
3931 *) New options to 'ca' utility to support V2 CRL entry extensions.
3932 Currently CRL reason, invalidity date and hold instruction are
3933 supported. Add new CRL extensions to V3 code and some new objects.
3936 *) New function EVP_CIPHER_CTX_set_padding() this is used to
3937 disable standard block padding (aka PKCS#5 padding) in the EVP
3938 API, which was previously mandatory. This means that the data is
3939 not padded in any way and so the total length much be a multiple
3940 of the block size, otherwise an error occurs.
3943 *) Initial (incomplete) OCSP SSL support.
3946 *) New function OCSP_parse_url(). This splits up a URL into its host,
3947 port and path components: primarily to parse OCSP URLs. New -url
3948 option to ocsp utility.
3951 *) New nonce behavior. The return value of OCSP_check_nonce() now
3952 reflects the various checks performed. Applications can decide
3953 whether to tolerate certain situations such as an absent nonce
3954 in a response when one was present in a request: the ocsp application
3955 just prints out a warning. New function OCSP_add1_basic_nonce()
3956 this is to allow responders to include a nonce in a response even if
3957 the request is nonce-less.
3960 *) Disable stdin buffering in load_cert (apps/apps.c) so that no certs are
3961 skipped when using openssl x509 multiple times on a single input file,
3962 e.g. "(openssl x509 -out cert1; openssl x509 -out cert2) <certs".
3965 *) Make ASN1_UTCTIME_set_string() and ASN1_GENERALIZEDTIME_set_string()
3966 set string type: to handle setting ASN1_TIME structures. Fix ca
3967 utility to correctly initialize revocation date of CRLs.
3970 *) New option SSL_OP_CIPHER_SERVER_PREFERENCE allows the server to override
3971 the clients preferred ciphersuites and rather use its own preferences.
3972 Should help to work around M$ SGC (Server Gated Cryptography) bug in
3973 Internet Explorer by ensuring unchanged hash method during stepup.
3974 (Also replaces the broken/deactivated SSL_OP_NON_EXPORT_FIRST option.)
3977 *) Make mkdef.pl recognise all DECLARE_ASN1 macros, change rijndael
3978 to aes and add a new 'exist' option to print out symbols that don't
3982 *) Additional options to ocsp utility to allow flags to be set and
3983 additional certificates supplied.
3986 *) Add the option -VAfile to 'openssl ocsp', so the user can give the
3987 OCSP client a number of certificate to only verify the response
3991 *) Update Rijndael code to version 3.0 and change EVP AES ciphers to
3992 handle the new API. Currently only ECB, CBC modes supported. Add new
3995 Add TLS AES ciphersuites as described in RFC3268, "Advanced
3996 Encryption Standard (AES) Ciphersuites for Transport Layer
3997 Security (TLS)". (In beta versions of OpenSSL 0.9.7, these were
3998 not enabled by default and were not part of the "ALL" ciphersuite
3999 alias because they were not yet official; they could be
4000 explicitly requested by specifying the "AESdraft" ciphersuite
4001 group alias. In the final release of OpenSSL 0.9.7, the group
4002 alias is called "AES" and is part of "ALL".)
4003 [Ben Laurie, Steve Henson, Bodo Moeller]
4005 *) New function OCSP_copy_nonce() to copy nonce value (if present) from
4006 request to response.
4009 *) Functions for OCSP responders. OCSP_request_onereq_count(),
4010 OCSP_request_onereq_get0(), OCSP_onereq_get0_id() and OCSP_id_get0_info()
4011 extract information from a certificate request. OCSP_response_create()
4012 creates a response and optionally adds a basic response structure.
4013 OCSP_basic_add1_status() adds a complete single response to a basic
4014 response and returns the OCSP_SINGLERESP structure just added (to allow
4015 extensions to be included for example). OCSP_basic_add1_cert() adds a
4016 certificate to a basic response and OCSP_basic_sign() signs a basic
4017 response with various flags. New helper functions ASN1_TIME_check()
4018 (checks validity of ASN1_TIME structure) and ASN1_TIME_to_generalizedtime()
4019 (converts ASN1_TIME to GeneralizedTime).
4022 *) Various new functions. EVP_Digest() combines EVP_Digest{Init,Update,Final}()
4023 in a single operation. X509_get0_pubkey_bitstr() extracts the public_key
4024 structure from a certificate. X509_pubkey_digest() digests the public_key
4025 contents: this is used in various key identifiers.
4028 *) Make sk_sort() tolerate a NULL argument.
4029 [Steve Henson reported by Massimiliano Pala <madwolf@comune.modena.it>]
4031 *) New OCSP verify flag OCSP_TRUSTOTHER. When set the "other" certificates
4032 passed by the function are trusted implicitly. If any of them signed the
4033 response then it is assumed to be valid and is not verified.
4036 *) In PKCS7_set_type() initialise content_type in PKCS7_ENC_CONTENT
4037 to data. This was previously part of the PKCS7 ASN1 code. This
4038 was causing problems with OpenSSL created PKCS#12 and PKCS#7 structures.
4039 [Steve Henson, reported by Kenneth R. Robinette
4040 <support@securenetterm.com>]
4042 *) Add CRYPTO_push_info() and CRYPTO_pop_info() calls to new ASN1
4043 routines: without these tracing memory leaks is very painful.
4044 Fix leaks in PKCS12 and PKCS7 routines.
4047 *) Make X509_time_adj() cope with the new behaviour of ASN1_TIME_new().
4048 Previously it initialised the 'type' argument to V_ASN1_UTCTIME which
4049 effectively meant GeneralizedTime would never be used. Now it
4050 is initialised to -1 but X509_time_adj() now has to check the value
4051 and use ASN1_TIME_set() if the value is not V_ASN1_UTCTIME or
4052 V_ASN1_GENERALIZEDTIME, without this it always uses GeneralizedTime.
4053 [Steve Henson, reported by Kenneth R. Robinette
4054 <support@securenetterm.com>]
4056 *) Fixes to BN_to_ASN1_INTEGER when bn is zero. This would previously
4057 result in a zero length in the ASN1_INTEGER structure which was
4058 not consistent with the structure when d2i_ASN1_INTEGER() was used
4059 and would cause ASN1_INTEGER_cmp() to fail. Enhance s2i_ASN1_INTEGER()
4060 to cope with hex and negative integers. Fix bug in i2a_ASN1_INTEGER()
4061 where it did not print out a minus for negative ASN1_INTEGER.
4064 *) Add summary printout to ocsp utility. The various functions which
4065 convert status values to strings have been renamed to:
4066 OCSP_response_status_str(), OCSP_cert_status_str() and
4067 OCSP_crl_reason_str() and are no longer static. New options
4068 to verify nonce values and to disable verification. OCSP response
4069 printout format cleaned up.
4072 *) Add additional OCSP certificate checks. These are those specified
4073 in RFC2560. This consists of two separate checks: the CA of the
4074 certificate being checked must either be the OCSP signer certificate
4075 or the issuer of the OCSP signer certificate. In the latter case the
4076 OCSP signer certificate must contain the OCSP signing extended key
4077 usage. This check is performed by attempting to match the OCSP
4078 signer or the OCSP signer CA to the issuerNameHash and issuerKeyHash
4079 in the OCSP_CERTID structures of the response.
4082 *) Initial OCSP certificate verification added to OCSP_basic_verify()
4083 and related routines. This uses the standard OpenSSL certificate
4084 verify routines to perform initial checks (just CA validity) and
4085 to obtain the certificate chain. Then additional checks will be
4086 performed on the chain. Currently the root CA is checked to see
4087 if it is explicitly trusted for OCSP signing. This is used to set
4088 a root CA as a global signing root: that is any certificate that
4089 chains to that CA is an acceptable OCSP signing certificate.
4092 *) New '-extfile ...' option to 'openssl ca' for reading X.509v3
4093 extensions from a separate configuration file.
4094 As when reading extensions from the main configuration file,
4095 the '-extensions ...' option may be used for specifying the
4097 [Massimiliano Pala <madwolf@comune.modena.it>]
4099 *) New OCSP utility. Allows OCSP requests to be generated or
4100 read. The request can be sent to a responder and the output
4101 parsed, outputed or printed in text form. Not complete yet:
4102 still needs to check the OCSP response validity.
4105 *) New subcommands for 'openssl ca':
4106 'openssl ca -status <serial>' prints the status of the cert with
4107 the given serial number (according to the index file).
4108 'openssl ca -updatedb' updates the expiry status of certificates
4110 [Massimiliano Pala <madwolf@comune.modena.it>]
4112 *) New '-newreq-nodes' command option to CA.pl. This is like
4113 '-newreq', but calls 'openssl req' with the '-nodes' option
4114 so that the resulting key is not encrypted.
4115 [Damien Miller <djm@mindrot.org>]
4117 *) New configuration for the GNU Hurd.
4118 [Jonathan Bartlett <johnnyb@wolfram.com> via Richard Levitte]
4120 *) Initial code to implement OCSP basic response verify. This
4121 is currently incomplete. Currently just finds the signer's
4122 certificate and verifies the signature on the response.
4125 *) New SSLeay_version code SSLEAY_DIR to determine the compiled-in
4126 value of OPENSSLDIR. This is available via the new '-d' option
4127 to 'openssl version', and is also included in 'openssl version -a'.
4130 *) Allowing defining memory allocation callbacks that will be given
4131 file name and line number information in additional arguments
4132 (a const char* and an int). The basic functionality remains, as
4133 well as the original possibility to just replace malloc(),
4134 realloc() and free() by functions that do not know about these
4135 additional arguments. To register and find out the current
4136 settings for extended allocation functions, the following
4137 functions are provided:
4139 CRYPTO_set_mem_ex_functions
4140 CRYPTO_set_locked_mem_ex_functions
4141 CRYPTO_get_mem_ex_functions
4142 CRYPTO_get_locked_mem_ex_functions
4144 These work the same way as CRYPTO_set_mem_functions and friends.
4145 CRYPTO_get_[locked_]mem_functions now writes 0 where such an
4146 extended allocation function is enabled.
4147 Similarly, CRYPTO_get_[locked_]mem_ex_functions writes 0 where
4148 a conventional allocation function is enabled.
4149 [Richard Levitte, Bodo Moeller]
4151 *) Finish off removing the remaining LHASH function pointer casts.
4152 There should no longer be any prototype-casting required when using
4153 the LHASH abstraction, and any casts that remain are "bugs". See
4154 the callback types and macros at the head of lhash.h for details
4155 (and "OBJ_cleanup" in crypto/objects/obj_dat.c as an example).
4158 *) Add automatic query of EGD sockets in RAND_poll() for the unix variant.
4159 If /dev/[u]random devices are not available or do not return enough
4160 entropy, EGD style sockets (served by EGD or PRNGD) will automatically
4162 The locations /var/run/egd-pool, /dev/egd-pool, /etc/egd-pool, and
4163 /etc/entropy will be queried once each in this sequence, quering stops
4164 when enough entropy was collected without querying more sockets.
4167 *) Change the Unix RAND_poll() variant to be able to poll several
4168 random devices, as specified by DEVRANDOM, until a sufficient amount
4169 of data has been collected. We spend at most 10 ms on each file
4170 (select timeout) and read in non-blocking mode. DEVRANDOM now
4171 defaults to the list "/dev/urandom", "/dev/random", "/dev/srandom"
4172 (previously it was just the string "/dev/urandom"), so on typical
4173 platforms the 10 ms delay will never occur.
4174 Also separate out the Unix variant to its own file, rand_unix.c.
4175 For VMS, there's a currently-empty rand_vms.c.
4178 *) Move OCSP client related routines to ocsp_cl.c. These
4179 provide utility functions which an application needing
4180 to issue a request to an OCSP responder and analyse the
4181 response will typically need: as opposed to those which an
4182 OCSP responder itself would need which will be added later.
4184 OCSP_request_sign() signs an OCSP request with an API similar
4185 to PKCS7_sign(). OCSP_response_status() returns status of OCSP
4186 response. OCSP_response_get1_basic() extracts basic response
4187 from response. OCSP_resp_find_status(): finds and extracts status
4188 information from an OCSP_CERTID structure (which will be created
4189 when the request structure is built). These are built from lower
4190 level functions which work on OCSP_SINGLERESP structures but
4191 wont normally be used unless the application wishes to examine
4192 extensions in the OCSP response for example.
4194 Replace nonce routines with a pair of functions.
4195 OCSP_request_add1_nonce() adds a nonce value and optionally
4196 generates a random value. OCSP_check_nonce() checks the
4197 validity of the nonce in an OCSP response.
4200 *) Change function OCSP_request_add() to OCSP_request_add0_id().
4201 This doesn't copy the supplied OCSP_CERTID and avoids the
4202 need to free up the newly created id. Change return type
4203 to OCSP_ONEREQ to return the internal OCSP_ONEREQ structure.
4204 This can then be used to add extensions to the request.
4205 Deleted OCSP_request_new(), since most of its functionality
4206 is now in OCSP_REQUEST_new() (and the case insensitive name
4207 clash) apart from the ability to set the request name which
4208 will be added elsewhere.
4211 *) Update OCSP API. Remove obsolete extensions argument from
4212 various functions. Extensions are now handled using the new
4213 OCSP extension code. New simple OCSP HTTP function which
4214 can be used to send requests and parse the response.
4217 *) Fix the PKCS#7 (S/MIME) code to work with new ASN1. Two new
4218 ASN1_ITEM structures help with sign and verify. PKCS7_ATTR_SIGN
4219 uses the special reorder version of SET OF to sort the attributes
4220 and reorder them to match the encoded order. This resolves a long
4221 standing problem: a verify on a PKCS7 structure just after signing
4222 it used to fail because the attribute order did not match the
4223 encoded order. PKCS7_ATTR_VERIFY does not reorder the attributes:
4224 it uses the received order. This is necessary to tolerate some broken
4225 software that does not order SET OF. This is handled by encoding
4226 as a SEQUENCE OF but using implicit tagging (with UNIVERSAL class)
4227 to produce the required SET OF.
4230 *) Have mk1mf.pl generate the macros OPENSSL_BUILD_SHLIBCRYPTO and
4231 OPENSSL_BUILD_SHLIBSSL and use them appropriately in the header
4232 files to get correct declarations of the ASN.1 item variables.
4235 *) Rewrite of PKCS#12 code to use new ASN1 functionality. Replace many
4236 PKCS#12 macros with real functions. Fix two unrelated ASN1 bugs:
4237 asn1_check_tlen() would sometimes attempt to use 'ctx' when it was
4238 NULL and ASN1_TYPE was not dereferenced properly in asn1_ex_c2i().
4239 New ASN1 macro: DECLARE_ASN1_ITEM() which just declares the relevant
4240 ASN1_ITEM and no wrapper functions.
4243 *) New functions or ASN1_item_d2i_fp() and ASN1_item_d2i_bio(). These
4244 replace the old function pointer based I/O routines. Change most of
4245 the *_d2i_bio() and *_d2i_fp() functions to use these.
4248 *) Enhance mkdef.pl to be more accepting about spacing in C preprocessor
4249 lines, recognice more "algorithms" that can be deselected, and make
4250 it complain about algorithm deselection that isn't recognised.
4253 *) New ASN1 functions to handle dup, sign, verify, digest, pack and
4254 unpack operations in terms of ASN1_ITEM. Modify existing wrappers
4255 to use new functions. Add NO_ASN1_OLD which can be set to remove
4256 some old style ASN1 functions: this can be used to determine if old
4257 code will still work when these eventually go away.
4260 *) New extension functions for OCSP structures, these follow the
4261 same conventions as certificates and CRLs.
4264 *) New function X509V3_add1_i2d(). This automatically encodes and
4265 adds an extension. Its behaviour can be customised with various
4266 flags to append, replace or delete. Various wrappers added for
4267 certifcates and CRLs.
4270 *) Fix to avoid calling the underlying ASN1 print routine when
4271 an extension cannot be parsed. Correct a typo in the
4272 OCSP_SERVICELOC extension. Tidy up print OCSP format.
4275 *) Make mkdef.pl parse some of the ASN1 macros and add apropriate
4276 entries for variables.
4279 *) Add functionality to apps/openssl.c for detecting locking
4280 problems: As the program is single-threaded, all we have
4281 to do is register a locking callback using an array for
4282 storing which locks are currently held by the program.
4285 *) Use a lock around the call to CRYPTO_get_ex_new_index() in
4286 SSL_get_ex_data_X509_STORE_idx(), which is used in
4287 ssl_verify_cert_chain() and thus can be called at any time
4288 during TLS/SSL handshakes so that thread-safety is essential.
4289 Unfortunately, the ex_data design is not at all suited
4290 for multi-threaded use, so it probably should be abolished.
4293 *) Added Broadcom "ubsec" ENGINE to OpenSSL.
4294 [Broadcom, tweaked and integrated by Geoff Thorpe]
4296 *) Move common extension printing code to new function
4297 X509V3_print_extensions(). Reorganise OCSP print routines and
4298 implement some needed OCSP ASN1 functions. Add OCSP extensions.
4301 *) New function X509_signature_print() to remove duplication in some
4305 *) Add a special meaning when SET OF and SEQUENCE OF flags are both
4306 set (this was treated exactly the same as SET OF previously). This
4307 is used to reorder the STACK representing the structure to match the
4308 encoding. This will be used to get round a problem where a PKCS7
4309 structure which was signed could not be verified because the STACK
4310 order did not reflect the encoded order.
4313 *) Reimplement the OCSP ASN1 module using the new code.
4316 *) Update the X509V3 code to permit the use of an ASN1_ITEM structure
4317 for its ASN1 operations. The old style function pointers still exist
4318 for now but they will eventually go away.
4321 *) Merge in replacement ASN1 code from the ASN1 branch. This almost
4322 completely replaces the old ASN1 functionality with a table driven
4323 encoder and decoder which interprets an ASN1_ITEM structure describing
4324 the ASN1 module. Compatibility with the existing ASN1 API (i2d,d2i) is
4325 largely maintained. Almost all of the old asn1_mac.h macro based ASN1
4326 has also been converted to the new form.
4329 *) Change BN_mod_exp_recp so that negative moduli are tolerated
4330 (the sign is ignored). Similarly, ignore the sign in BN_MONT_CTX_set
4331 so that BN_mod_exp_mont and BN_mod_exp_mont_word work
4332 for negative moduli.
4335 *) Fix BN_uadd and BN_usub: Always return non-negative results instead
4336 of not touching the result's sign bit.
4339 *) BN_div bugfix: If the result is 0, the sign (res->neg) must not be
4343 *) Changed the LHASH code to use prototypes for callbacks, and created
4344 macros to declare and implement thin (optionally static) functions
4345 that provide type-safety and avoid function pointer casting for the
4346 type-specific callbacks.
4349 *) Added Kerberos Cipher Suites to be used with TLS, as written in
4351 [Veers Staats <staatsvr@asc.hpc.mil>,
4352 Jeffrey Altman <jaltman@columbia.edu>, via Richard Levitte]
4354 *) Reformat the FAQ so the different questions and answers can be divided
4355 in sections depending on the subject.
4358 *) Have the zlib compression code load ZLIB.DLL dynamically under
4362 *) New function BN_mod_sqrt for computing square roots modulo a prime
4363 (using the probabilistic Tonelli-Shanks algorithm unless
4364 p == 3 (mod 4) or p == 5 (mod 8), which are cases that can
4365 be handled deterministically).
4366 [Lenka Fibikova <fibikova@exp-math.uni-essen.de>, Bodo Moeller]
4368 *) Make BN_mod_inverse faster by explicitly handling small quotients
4369 in the Euclid loop. (Speed gain about 20% for small moduli [256 or
4370 512 bits], about 30% for larger ones [1024 or 2048 bits].)
4373 *) New function BN_kronecker.
4376 *) Fix BN_gcd so that it works on negative inputs; the result is
4377 positive unless both parameters are zero.
4378 Previously something reasonably close to an infinite loop was
4379 possible because numbers could be growing instead of shrinking
4380 in the implementation of Euclid's algorithm.
4383 *) Fix BN_is_word() and BN_is_one() macros to take into account the
4384 sign of the number in question.
4386 Fix BN_is_word(a,w) to work correctly for w == 0.
4388 The old BN_is_word(a,w) macro is now called BN_abs_is_word(a,w)
4389 because its test if the absolute value of 'a' equals 'w'.
4390 Note that BN_abs_is_word does *not* handle w == 0 reliably;
4391 it exists mostly for use in the implementations of BN_is_zero(),
4392 BN_is_one(), and BN_is_word().
4395 *) New function BN_swap.
4398 *) Use BN_nnmod instead of BN_mod in crypto/bn/bn_exp.c so that
4399 the exponentiation functions are more likely to produce reasonable
4400 results on negative inputs.
4403 *) Change BN_mod_mul so that the result is always non-negative.
4404 Previously, it could be negative if one of the factors was negative;
4405 I don't think anyone really wanted that behaviour.
4408 *) Move BN_mod_... functions into new file crypto/bn/bn_mod.c
4409 (except for exponentiation, which stays in crypto/bn/bn_exp.c,
4410 and BN_mod_mul_reciprocal, which stays in crypto/bn/bn_recp.c)
4411 and add new functions:
4420 BN_mod_lshift1_quick
4424 These functions always generate non-negative results.
4426 BN_nnmod otherwise is like BN_mod (if BN_mod computes a remainder r
4427 such that |m| < r < 0, BN_nnmod will output rem + |m| instead).
4429 BN_mod_XXX_quick(r, a, [b,] m) generates the same result as
4430 BN_mod_XXX(r, a, [b,] m, ctx), but requires that a [and b]
4431 be reduced modulo m.
4432 [Lenka Fibikova <fibikova@exp-math.uni-essen.de>, Bodo Moeller]
4435 The following entry accidentily appeared in the CHANGES file
4436 distributed with OpenSSL 0.9.7. The modifications described in
4437 it do *not* apply to OpenSSL 0.9.7.
4439 *) Remove a few calls to bn_wexpand() in BN_sqr() (the one in there
4440 was actually never needed) and in BN_mul(). The removal in BN_mul()
4441 required a small change in bn_mul_part_recursive() and the addition
4442 of the functions bn_cmp_part_words(), bn_sub_part_words() and
4443 bn_add_part_words(), which do the same thing as bn_cmp_words(),
4444 bn_sub_words() and bn_add_words() except they take arrays with
4449 *) In 'openssl passwd', verify passwords read from the terminal
4450 unless the '-salt' option is used (which usually means that
4451 verification would just waste user's time since the resulting
4452 hash is going to be compared with some given password hash)
4453 or the new '-noverify' option is used.
4455 This is an incompatible change, but it does not affect
4456 non-interactive use of 'openssl passwd' (passwords on the command
4457 line, '-stdin' option, '-in ...' option) and thus should not
4461 *) Remove all references to RSAref, since there's no more need for it.
4464 *) Make DSO load along a path given through an environment variable
4465 (SHLIB_PATH) with shl_load().
4468 *) Constify the ENGINE code as a result of BIGNUM constification.
4469 Also constify the RSA code and most things related to it. In a
4470 few places, most notable in the depth of the ASN.1 code, ugly
4471 casts back to non-const were required (to be solved at a later
4475 *) Make it so the openssl application has all engines loaded by default.
4478 *) Constify the BIGNUM routines a little more.
4481 *) Add the following functions:
4483 ENGINE_load_cswift()
4485 ENGINE_load_atalla()
4487 ENGINE_load_builtin_engines()
4489 That way, an application can itself choose if external engines that
4490 are built-in in OpenSSL shall ever be used or not. The benefit is
4491 that applications won't have to be linked with libdl or other dso
4492 libraries unless it's really needed.
4494 Changed 'openssl engine' to load all engines on demand.
4495 Changed the engine header files to avoid the duplication of some
4496 declarations (they differed!).
4499 *) 'openssl engine' can now list capabilities.
4502 *) Better error reporting in 'openssl engine'.
4505 *) Never call load_dh_param(NULL) in s_server.
4508 *) Add engine application. It can currently list engines by name and
4509 identity, and test if they are actually available.
4512 *) Improve RPM specification file by forcing symbolic linking and making
4513 sure the installed documentation is also owned by root.root.
4514 [Damien Miller <djm@mindrot.org>]
4516 *) Give the OpenSSL applications more possibilities to make use of
4517 keys (public as well as private) handled by engines.
4520 *) Add OCSP code that comes from CertCo.
4523 *) Add VMS support for the Rijndael code.
4526 *) Added untested support for Nuron crypto accelerator.
4529 *) Add support for external cryptographic devices. This code was
4530 previously distributed separately as the "engine" branch.
4531 [Geoff Thorpe, Richard Levitte]
4533 *) Rework the filename-translation in the DSO code. It is now possible to
4534 have far greater control over how a "name" is turned into a filename
4535 depending on the operating environment and any oddities about the
4536 different shared library filenames on each system.
4539 *) Support threads on FreeBSD-elf in Configure.
4542 *) Fix for SHA1 assembly problem with MASM: it produces
4543 warnings about corrupt line number information when assembling
4544 with debugging information. This is caused by the overlapping
4546 [Bernd Matthes <mainbug@celocom.de>, Steve Henson]
4549 NCONF_get_number() has no error checking at all. As a replacement,
4550 NCONF_get_number_e() is defined (_e for "error checking") and is
4551 promoted strongly. The old NCONF_get_number is kept around for
4552 binary backward compatibility.
4553 Make it possible for methods to load from something other than a BIO,
4554 by providing a function pointer that is given a name instead of a BIO.
4555 For example, this could be used to load configuration data from an
4559 *) Fix for non blocking accept BIOs. Added new I/O special reason
4560 BIO_RR_ACCEPT to cover this case. Previously use of accept BIOs
4561 with non blocking I/O was not possible because no retry code was
4562 implemented. Also added new SSL code SSL_WANT_ACCEPT to cover
4566 *) Added the beginnings of Rijndael support.
4569 *) Fix for bug in DirectoryString mask setting. Add support for
4570 X509_NAME_print_ex() in 'req' and X509_print_ex() function
4571 to allow certificate printing to more controllable, additional
4572 'certopt' option to 'x509' to allow new printing options to be
4576 *) Clean old EAY MD5 hack from e_os.h.
4579 Changes between 0.9.6l and 0.9.6m [17 Mar 2004]
4581 *) Fix null-pointer assignment in do_change_cipher_spec() revealed
4582 by using the Codenomicon TLS Test Tool (CVE-2004-0079)
4583 [Joe Orton, Steve Henson]
4585 Changes between 0.9.6k and 0.9.6l [04 Nov 2003]
4587 *) Fix additional bug revealed by the NISCC test suite:
4589 Stop bug triggering large recursion when presented with
4590 certain ASN.1 tags (CVE-2003-0851)
4593 Changes between 0.9.6j and 0.9.6k [30 Sep 2003]
4595 *) Fix various bugs revealed by running the NISCC test suite:
4597 Stop out of bounds reads in the ASN1 code when presented with
4598 invalid tags (CVE-2003-0543 and CVE-2003-0544).
4600 If verify callback ignores invalid public key errors don't try to check
4601 certificate signature with the NULL public key.
4605 *) In ssl3_accept() (ssl/s3_srvr.c) only accept a client certificate
4606 if the server requested one: as stated in TLS 1.0 and SSL 3.0
4610 *) In ssl3_get_client_hello() (ssl/s3_srvr.c), tolerate additional
4611 extra data after the compression methods not only for TLS 1.0
4612 but also for SSL 3.0 (as required by the specification).
4613 [Bodo Moeller; problem pointed out by Matthias Loepfe]
4615 *) Change X509_certificate_type() to mark the key as exported/exportable
4616 when it's 512 *bits* long, not 512 bytes.
4619 Changes between 0.9.6i and 0.9.6j [10 Apr 2003]
4621 *) Countermeasure against the Klima-Pokorny-Rosa extension of
4622 Bleichbacher's attack on PKCS #1 v1.5 padding: treat
4623 a protocol version number mismatch like a decryption error
4624 in ssl3_get_client_key_exchange (ssl/s3_srvr.c).
4627 *) Turn on RSA blinding by default in the default implementation
4628 to avoid a timing attack. Applications that don't want it can call
4629 RSA_blinding_off() or use the new flag RSA_FLAG_NO_BLINDING.
4630 They would be ill-advised to do so in most cases.
4631 [Ben Laurie, Steve Henson, Geoff Thorpe, Bodo Moeller]
4633 *) Change RSA blinding code so that it works when the PRNG is not
4634 seeded (in this case, the secret RSA exponent is abused as
4635 an unpredictable seed -- if it is not unpredictable, there
4636 is no point in blinding anyway). Make RSA blinding thread-safe
4637 by remembering the creator's thread ID in rsa->blinding and
4638 having all other threads use local one-time blinding factors
4639 (this requires more computation than sharing rsa->blinding, but
4640 avoids excessive locking; and if an RSA object is not shared
4641 between threads, blinding will still be very fast).
4644 Changes between 0.9.6h and 0.9.6i [19 Feb 2003]
4646 *) In ssl3_get_record (ssl/s3_pkt.c), minimize information leaked
4647 via timing by performing a MAC computation even if incorrrect
4648 block cipher padding has been found. This is a countermeasure
4649 against active attacks where the attacker has to distinguish
4650 between bad padding and a MAC verification error. (CVE-2003-0078)
4652 [Bodo Moeller; problem pointed out by Brice Canvel (EPFL),
4653 Alain Hiltgen (UBS), Serge Vaudenay (EPFL), and
4654 Martin Vuagnoux (EPFL, Ilion)]
4656 Changes between 0.9.6g and 0.9.6h [5 Dec 2002]
4658 *) New function OPENSSL_cleanse(), which is used to cleanse a section of
4659 memory from it's contents. This is done with a counter that will
4660 place alternating values in each byte. This can be used to solve
4661 two issues: 1) the removal of calls to memset() by highly optimizing
4662 compilers, and 2) cleansing with other values than 0, since those can
4663 be read through on certain media, for example a swap space on disk.
4666 *) Bugfix: client side session caching did not work with external caching,
4667 because the session->cipher setting was not restored when reloading
4668 from the external cache. This problem was masked, when
4669 SSL_OP_NETSCAPE_REUSE_CIPHER_CHANGE_BUG (part of SSL_OP_ALL) was set.
4670 (Found by Steve Haslam <steve@araqnid.ddts.net>.)
4673 *) Fix client_certificate (ssl/s2_clnt.c): The permissible total
4674 length of the REQUEST-CERTIFICATE message is 18 .. 34, not 17 .. 33.
4675 [Zeev Lieber <zeev-l@yahoo.com>]
4677 *) Undo an undocumented change introduced in 0.9.6e which caused
4678 repeated calls to OpenSSL_add_all_ciphers() and
4679 OpenSSL_add_all_digests() to be ignored, even after calling
4683 *) Change the default configuration reader to deal with last line not
4684 being properly terminated.
4687 *) Change X509_NAME_cmp() so it applies the special rules on handling
4688 DN values that are of type PrintableString, as well as RDNs of type
4689 emailAddress where the value has the type ia5String.
4690 [stefank@valicert.com via Richard Levitte]
4692 *) Add a SSL_SESS_CACHE_NO_INTERNAL_STORE flag to take over half
4693 the job SSL_SESS_CACHE_NO_INTERNAL_LOOKUP was inconsistently
4694 doing, define a new flag (SSL_SESS_CACHE_NO_INTERNAL) to be
4695 the bitwise-OR of the two for use by the majority of applications
4696 wanting this behaviour, and update the docs. The documented
4697 behaviour and actual behaviour were inconsistent and had been
4698 changing anyway, so this is more a bug-fix than a behavioural
4700 [Geoff Thorpe, diagnosed by Nadav Har'El]
4702 *) Don't impose a 16-byte length minimum on session IDs in ssl/s3_clnt.c
4703 (the SSL 3.0 and TLS 1.0 specifications allow any length up to 32 bytes).
4706 *) Fix initialization code race conditions in
4707 SSLv23_method(), SSLv23_client_method(), SSLv23_server_method(),
4708 SSLv2_method(), SSLv2_client_method(), SSLv2_server_method(),
4709 SSLv3_method(), SSLv3_client_method(), SSLv3_server_method(),
4710 TLSv1_method(), TLSv1_client_method(), TLSv1_server_method(),
4711 ssl2_get_cipher_by_char(),
4712 ssl3_get_cipher_by_char().
4713 [Patrick McCormick <patrick@tellme.com>, Bodo Moeller]
4715 *) Reorder cleanup sequence in SSL_CTX_free(): only remove the ex_data after
4716 the cached sessions are flushed, as the remove_cb() might use ex_data
4717 contents. Bug found by Sam Varshavchik <mrsam@courier-mta.com>
4718 (see [openssl.org #212]).
4719 [Geoff Thorpe, Lutz Jaenicke]
4721 *) Fix typo in OBJ_txt2obj which incorrectly passed the content
4722 length, instead of the encoding length to d2i_ASN1_OBJECT.
4725 Changes between 0.9.6f and 0.9.6g [9 Aug 2002]
4727 *) [In 0.9.6g-engine release:]
4728 Fix crypto/engine/vendor_defns/cswift.h for WIN32 (use '_stdcall').
4729 [Lynn Gazis <lgazis@rainbow.com>]
4731 Changes between 0.9.6e and 0.9.6f [8 Aug 2002]
4733 *) Fix ASN1 checks. Check for overflow by comparing with LONG_MAX
4734 and get fix the header length calculation.
4735 [Florian Weimer <Weimer@CERT.Uni-Stuttgart.DE>,
4736 Alon Kantor <alonk@checkpoint.com> (and others),
4739 *) Use proper error handling instead of 'assertions' in buffer
4740 overflow checks added in 0.9.6e. This prevents DoS (the
4741 assertions could call abort()).
4742 [Arne Ansper <arne@ats.cyber.ee>, Bodo Moeller]
4744 Changes between 0.9.6d and 0.9.6e [30 Jul 2002]
4746 *) Add various sanity checks to asn1_get_length() to reject
4747 the ASN1 length bytes if they exceed sizeof(long), will appear
4748 negative or the content length exceeds the length of the
4750 [Steve Henson, Adi Stav <stav@mercury.co.il>, James Yonan <jim@ntlp.com>]
4752 *) Fix cipher selection routines: ciphers without encryption had no flags
4753 for the cipher strength set and where therefore not handled correctly
4754 by the selection routines (PR #130).
4757 *) Fix EVP_dsa_sha macro.
4761 SSL_OP_DONT_INSERT_EMPTY_FRAGMENTS
4762 for disabling the SSL 3.0/TLS 1.0 CBC vulnerability countermeasure
4763 that was added in OpenSSL 0.9.6d.
4765 As the countermeasure turned out to be incompatible with some
4766 broken SSL implementations, the new option is part of SSL_OP_ALL.
4767 SSL_OP_ALL is usually employed when compatibility with weird SSL
4768 implementations is desired (e.g. '-bugs' option to 's_client' and
4769 's_server'), so the new option is automatically set in many
4773 *) Changes in security patch:
4775 Changes marked "(CHATS)" were sponsored by the Defense Advanced
4776 Research Projects Agency (DARPA) and Air Force Research Laboratory,
4777 Air Force Materiel Command, USAF, under agreement number
4780 *) Add various sanity checks to asn1_get_length() to reject
4781 the ASN1 length bytes if they exceed sizeof(long), will appear
4782 negative or the content length exceeds the length of the
4783 supplied buffer. (CVE-2002-0659)
4784 [Steve Henson, Adi Stav <stav@mercury.co.il>, James Yonan <jim@ntlp.com>]
4786 *) Assertions for various potential buffer overflows, not known to
4788 [Ben Laurie (CHATS)]
4790 *) Various temporary buffers to hold ASCII versions of integers were
4791 too small for 64 bit platforms. (CVE-2002-0655)
4792 [Matthew Byng-Maddick <mbm@aldigital.co.uk> and Ben Laurie (CHATS)>
4794 *) Remote buffer overflow in SSL3 protocol - an attacker could
4795 supply an oversized session ID to a client. (CVE-2002-0656)
4796 [Ben Laurie (CHATS)]
4798 *) Remote buffer overflow in SSL2 protocol - an attacker could
4799 supply an oversized client master key. (CVE-2002-0656)
4800 [Ben Laurie (CHATS)]
4802 Changes between 0.9.6c and 0.9.6d [9 May 2002]
4804 *) Fix crypto/asn1/a_sign.c so that 'parameters' is omitted (not
4805 encoded as NULL) with id-dsa-with-sha1.
4806 [Nils Larsch <nla@trustcenter.de>; problem pointed out by Bodo Moeller]
4808 *) Check various X509_...() return values in apps/req.c.
4809 [Nils Larsch <nla@trustcenter.de>]
4811 *) Fix BASE64 decode (EVP_DecodeUpdate) for data with CR/LF ended lines:
4812 an end-of-file condition would erronously be flagged, when the CRLF
4813 was just at the end of a processed block. The bug was discovered when
4814 processing data through a buffering memory BIO handing the data to a
4815 BASE64-decoding BIO. Bug fund and patch submitted by Pavel Tsekov
4816 <ptsekov@syntrex.com> and Nedelcho Stanev.
4819 *) Implement a countermeasure against a vulnerability recently found
4820 in CBC ciphersuites in SSL 3.0/TLS 1.0: Send an empty fragment
4821 before application data chunks to avoid the use of known IVs
4822 with data potentially chosen by the attacker.
4825 *) Fix length checks in ssl3_get_client_hello().
4828 *) TLS/SSL library bugfix: use s->s3->in_read_app_data differently
4829 to prevent ssl3_read_internal() from incorrectly assuming that
4830 ssl3_read_bytes() found application data while handshake
4831 processing was enabled when in fact s->s3->in_read_app_data was
4832 merely automatically cleared during the initial handshake.
4833 [Bodo Moeller; problem pointed out by Arne Ansper <arne@ats.cyber.ee>]
4835 *) Fix object definitions for Private and Enterprise: they were not
4836 recognized in their shortname (=lowercase) representation. Extend
4837 obj_dat.pl to issue an error when using undefined keywords instead
4838 of silently ignoring the problem (Svenning Sorensen
4839 <sss@sss.dnsalias.net>).
4842 *) Fix DH_generate_parameters() so that it works for 'non-standard'
4843 generators, i.e. generators other than 2 and 5. (Previously, the
4844 code did not properly initialise the 'add' and 'rem' values to
4845 BN_generate_prime().)
4847 In the new general case, we do not insist that 'generator' is
4848 actually a primitive root: This requirement is rather pointless;
4849 a generator of the order-q subgroup is just as good, if not
4853 *) Map new X509 verification errors to alerts. Discovered and submitted by
4854 Tom Wu <tom@arcot.com>.
4857 *) Fix ssl3_pending() (ssl/s3_lib.c) to prevent SSL_pending() from
4858 returning non-zero before the data has been completely received
4859 when using non-blocking I/O.
4860 [Bodo Moeller; problem pointed out by John Hughes]
4862 *) Some of the ciphers missed the strength entry (SSL_LOW etc).
4863 [Ben Laurie, Lutz Jaenicke]
4865 *) Fix bug in SSL_clear(): bad sessions were not removed (found by
4866 Yoram Zahavi <YoramZ@gilian.com>).
4869 *) Add information about CygWin 1.3 and on, and preserve proper
4870 configuration for the versions before that.
4871 [Corinna Vinschen <vinschen@redhat.com> and Richard Levitte]
4873 *) Make removal from session cache (SSL_CTX_remove_session()) more robust:
4874 check whether we deal with a copy of a session and do not delete from
4875 the cache in this case. Problem reported by "Izhar Shoshani Levi"
4876 <izhar@checkpoint.com>.
4879 *) Do not store session data into the internal session cache, if it
4880 is never intended to be looked up (SSL_SESS_CACHE_NO_INTERNAL_LOOKUP
4881 flag is set). Proposed by Aslam <aslam@funk.com>.
4884 *) Have ASN1_BIT_STRING_set_bit() really clear a bit when the requested
4888 *) [In 0.9.6d-engine release:]
4889 Fix a crashbug and a logic bug in hwcrhk_load_pubkey().
4890 [Toomas Kiisk <vix@cyber.ee> via Richard Levitte]
4892 *) Add the configuration target linux-s390x.
4893 [Neale Ferguson <Neale.Ferguson@SoftwareAG-USA.com> via Richard Levitte]
4895 *) The earlier bugfix for the SSL3_ST_SW_HELLO_REQ_C case of
4896 ssl3_accept (ssl/s3_srvr.c) incorrectly used a local flag
4897 variable as an indication that a ClientHello message has been
4898 received. As the flag value will be lost between multiple
4899 invocations of ssl3_accept when using non-blocking I/O, the
4900 function may not be aware that a handshake has actually taken
4901 place, thus preventing a new session from being added to the
4904 To avoid this problem, we now set s->new_session to 2 instead of
4905 using a local variable.
4906 [Lutz Jaenicke, Bodo Moeller]
4908 *) Bugfix: Return -1 from ssl3_get_server_done (ssl3/s3_clnt.c)
4909 if the SSL_R_LENGTH_MISMATCH error is detected.
4910 [Geoff Thorpe, Bodo Moeller]
4912 *) New 'shared_ldflag' column in Configure platform table.
4915 *) Fix EVP_CIPHER_mode macro.
4916 ["Dan S. Camper" <dan@bti.net>]
4918 *) Fix ssl3_read_bytes (ssl/s3_pkt.c): To ignore messages of unknown
4919 type, we must throw them away by setting rr->length to 0.
4920 [D P Chang <dpc@qualys.com>]
4922 Changes between 0.9.6b and 0.9.6c [21 dec 2001]
4924 *) Fix BN_rand_range bug pointed out by Dominikus Scherkl
4925 <Dominikus.Scherkl@biodata.com>. (The previous implementation
4926 worked incorrectly for those cases where range = 10..._2 and
4927 3*range is two bits longer than range.)
4930 *) Only add signing time to PKCS7 structures if it is not already
4934 *) Fix crypto/objects/objects.h: "ld-ce" should be "id-ce",
4935 OBJ_ld_ce should be OBJ_id_ce.
4936 Also some ip-pda OIDs in crypto/objects/objects.txt were
4937 incorrect (cf. RFC 3039).
4938 [Matt Cooper, Frederic Giudicelli, Bodo Moeller]
4940 *) Release CRYPTO_LOCK_DYNLOCK when CRYPTO_destroy_dynlockid()
4941 returns early because it has nothing to do.
4942 [Andy Schneider <andy.schneider@bjss.co.uk>]
4944 *) [In 0.9.6c-engine release:]
4945 Fix mutex callback return values in crypto/engine/hw_ncipher.c.
4946 [Andy Schneider <andy.schneider@bjss.co.uk>]
4948 *) [In 0.9.6c-engine release:]
4949 Add support for Cryptographic Appliance's keyserver technology.
4950 (Use engine 'keyclient')
4951 [Cryptographic Appliances and Geoff Thorpe]
4953 *) Add a configuration entry for OS/390 Unix. The C compiler 'c89'
4954 is called via tools/c89.sh because arguments have to be
4955 rearranged (all '-L' options must appear before the first object
4957 [Richard Shapiro <rshapiro@abinitio.com>]
4959 *) [In 0.9.6c-engine release:]
4960 Add support for Broadcom crypto accelerator cards, backported
4962 [Broadcom, Nalin Dahyabhai <nalin@redhat.com>, Mark Cox]
4964 *) [In 0.9.6c-engine release:]
4965 Add support for SureWare crypto accelerator cards from
4966 Baltimore Technologies. (Use engine 'sureware')
4967 [Baltimore Technologies and Mark Cox]
4969 *) [In 0.9.6c-engine release:]
4970 Add support for crypto accelerator cards from Accelerated
4971 Encryption Processing, www.aep.ie. (Use engine 'aep')
4972 [AEP Inc. and Mark Cox]
4974 *) Add a configuration entry for gcc on UnixWare.
4975 [Gary Benson <gbenson@redhat.com>]
4977 *) Change ssl/s2_clnt.c and ssl/s2_srvr.c so that received handshake
4978 messages are stored in a single piece (fixed-length part and
4979 variable-length part combined) and fix various bugs found on the way.
4982 *) Disable caching in BIO_gethostbyname(), directly use gethostbyname()
4983 instead. BIO_gethostbyname() does not know what timeouts are
4984 appropriate, so entries would stay in cache even when they have
4986 [Bodo Moeller; problem pointed out by Rich Salz <rsalz@zolera.com>
4988 *) Change ssl23_get_client_hello (ssl/s23_srvr.c) behaviour when
4989 faced with a pathologically small ClientHello fragment that does
4990 not contain client_version: Instead of aborting with an error,
4991 simply choose the highest available protocol version (i.e.,
4992 TLS 1.0 unless it is disabled). In practice, ClientHello
4993 messages are never sent like this, but this change gives us
4994 strictly correct behaviour at least for TLS.
4997 *) Fix SSL handshake functions and SSL_clear() such that SSL_clear()
4998 never resets s->method to s->ctx->method when called from within
4999 one of the SSL handshake functions.
5000 [Bodo Moeller; problem pointed out by Niko Baric]
5002 *) In ssl3_get_client_hello (ssl/s3_srvr.c), generate a fatal alert
5003 (sent using the client's version number) if client_version is
5004 smaller than the protocol version in use. Also change
5005 ssl23_get_client_hello (ssl/s23_srvr.c) to select TLS 1.0 if
5006 the client demanded SSL 3.0 but only TLS 1.0 is enabled; then
5007 the client will at least see that alert.
5010 *) Fix ssl3_get_message (ssl/s3_both.c) to handle message fragmentation
5014 *) Avoid infinite loop in ssl3_get_message (ssl/s3_both.c) if a
5015 client receives HelloRequest while in a handshake.
5016 [Bodo Moeller; bug noticed by Andy Schneider <andy.schneider@bjss.co.uk>]
5018 *) Bugfix in ssl3_accept (ssl/s3_srvr.c): Case SSL3_ST_SW_HELLO_REQ_C
5019 should end in 'break', not 'goto end' which circuments various
5020 cleanups done in state SSL_ST_OK. But session related stuff
5021 must be disabled for SSL_ST_OK in the case that we just sent a
5024 Also avoid some overhead by not calling ssl_init_wbio_buffer()
5025 before just sending a HelloRequest.
5026 [Bodo Moeller, Eric Rescorla <ekr@rtfm.com>]
5028 *) Fix ssl/s3_enc.c, ssl/t1_enc.c and ssl/s3_pkt.c so that we don't
5029 reveal whether illegal block cipher padding was found or a MAC
5030 verification error occured. (Neither SSLerr() codes nor alerts
5031 are directly visible to potential attackers, but the information
5032 may leak via logfiles.)
5034 Similar changes are not required for the SSL 2.0 implementation
5035 because the number of padding bytes is sent in clear for SSL 2.0,
5036 and the extra bytes are just ignored. However ssl/s2_pkt.c
5037 failed to verify that the purported number of padding bytes is in
5041 *) Add OpenUNIX-8 support including shared libraries
5042 (Boyd Lynn Gerber <gerberb@zenez.com>).
5045 *) Improve RSA_padding_check_PKCS1_OAEP() check again to avoid
5046 'wristwatch attack' using huge encoding parameters (cf.
5047 James H. Manger's CRYPTO 2001 paper). Note that the
5048 RSA_PKCS1_OAEP_PADDING case of RSA_private_decrypt() does not use
5049 encoding parameters and hence was not vulnerable.
5052 *) BN_sqr() bug fix.
5053 [Ulf Möller, reported by Jim Ellis <jim.ellis@cavium.com>]
5055 *) Rabin-Miller test analyses assume uniformly distributed witnesses,
5056 so use BN_pseudo_rand_range() instead of using BN_pseudo_rand()
5057 followed by modular reduction.
5058 [Bodo Moeller; pointed out by Adam Young <AYoung1@NCSUS.JNJ.COM>]
5060 *) Add BN_pseudo_rand_range() with obvious functionality: BN_rand_range()
5061 equivalent based on BN_pseudo_rand() instead of BN_rand().
5064 *) s3_srvr.c: allow sending of large client certificate lists (> 16 kB).
5065 This function was broken, as the check for a new client hello message
5066 to handle SGC did not allow these large messages.
5067 (Tracked down by "Douglas E. Engert" <deengert@anl.gov>.)
5070 *) Add alert descriptions for TLSv1 to SSL_alert_desc_string[_long]().
5073 *) Fix buggy behaviour of BIO_get_num_renegotiates() and BIO_ctrl()
5074 for BIO_C_GET_WRITE_BUF_SIZE ("Stephen Hinton" <shinton@netopia.com>).
5077 *) Rework the configuration and shared library support for Tru64 Unix.
5078 The configuration part makes use of modern compiler features and
5079 still retains old compiler behavior for those that run older versions
5080 of the OS. The shared library support part includes a variant that
5081 uses the RPATH feature, and is available through the special
5082 configuration target "alpha-cc-rpath", which will never be selected
5084 [Tim Mooney <mooney@dogbert.cc.ndsu.NoDak.edu> via Richard Levitte]
5086 *) In ssl3_get_key_exchange (ssl/s3_clnt.c), call ssl3_get_message()
5087 with the same message size as in ssl3_get_certificate_request().
5088 Otherwise, if no ServerKeyExchange message occurs, CertificateRequest
5089 messages might inadvertently be reject as too long.
5090 [Petr Lampa <lampa@fee.vutbr.cz>]
5092 *) Enhanced support for IA-64 Unix platforms (well, Linux and HP-UX).
5095 *) Modified SSL library such that the verify_callback that has been set
5096 specificly for an SSL object with SSL_set_verify() is actually being
5097 used. Before the change, a verify_callback set with this function was
5098 ignored and the verify_callback() set in the SSL_CTX at the time of
5099 the call was used. New function X509_STORE_CTX_set_verify_cb() introduced
5100 to allow the necessary settings.
5103 *) Initialize static variable in crypto/dsa/dsa_lib.c and crypto/dh/dh_lib.c
5104 explicitly to NULL, as at least on Solaris 8 this seems not always to be
5105 done automatically (in contradiction to the requirements of the C
5106 standard). This made problems when used from OpenSSH.
5109 *) In OpenSSL 0.9.6a and 0.9.6b, crypto/dh/dh_key.c ignored
5110 dh->length and always used
5112 BN_rand_range(priv_key, dh->p).
5114 BN_rand_range() is not necessary for Diffie-Hellman, and this
5115 specific range makes Diffie-Hellman unnecessarily inefficient if
5116 dh->length (recommended exponent length) is much smaller than the
5117 length of dh->p. We could use BN_rand_range() if the order of
5118 the subgroup was stored in the DH structure, but we only have
5123 BN_rand(priv_key, l, ...)
5125 where 'l' is dh->length if this is defined, or BN_num_bits(dh->p)-1
5131 RSA_eay_public_encrypt
5132 RSA_eay_private_decrypt
5133 RSA_eay_private_encrypt (signing)
5134 RSA_eay_public_decrypt (signature verification)
5136 (default implementations for RSA_public_encrypt,
5137 RSA_private_decrypt, RSA_private_encrypt, RSA_public_decrypt),
5138 always reject numbers >= n.
5141 *) In crypto/rand/md_rand.c, use a new short-time lock CRYPTO_LOCK_RAND2
5142 to synchronize access to 'locking_thread'. This is necessary on
5143 systems where access to 'locking_thread' (an 'unsigned long'
5144 variable) is not atomic.
5147 *) In crypto/rand/md_rand.c, set 'locking_thread' to current thread's ID
5148 *before* setting the 'crypto_lock_rand' flag. The previous code had
5149 a race condition if 0 is a valid thread ID.
5150 [Travis Vitek <vitek@roguewave.com>]
5152 *) Add support for shared libraries under Irix.
5153 [Albert Chin-A-Young <china@thewrittenword.com>]
5155 *) Add configuration option to build on Linux on both big-endian and
5157 [Ralf Baechle <ralf@uni-koblenz.de>]
5159 *) Add the possibility to create shared libraries on HP-UX.
5162 Changes between 0.9.6a and 0.9.6b [9 Jul 2001]
5164 *) Change ssleay_rand_bytes (crypto/rand/md_rand.c)
5165 to avoid a SSLeay/OpenSSL PRNG weakness pointed out by
5166 Markku-Juhani O. Saarinen <markku-juhani.saarinen@nokia.com>:
5167 PRNG state recovery was possible based on the output of
5168 one PRNG request appropriately sized to gain knowledge on
5169 'md' followed by enough consecutive 1-byte PRNG requests
5170 to traverse all of 'state'.
5172 1. When updating 'md_local' (the current thread's copy of 'md')
5173 during PRNG output generation, hash all of the previous
5174 'md_local' value, not just the half used for PRNG output.
5176 2. Make the number of bytes from 'state' included into the hash
5177 independent from the number of PRNG bytes requested.
5179 The first measure alone would be sufficient to avoid
5180 Markku-Juhani's attack. (Actually it had never occurred
5181 to me that the half of 'md_local' used for chaining was the
5182 half from which PRNG output bytes were taken -- I had always
5183 assumed that the secret half would be used.) The second
5184 measure makes sure that additional data from 'state' is never
5185 mixed into 'md_local' in small portions; this heuristically
5186 further strengthens the PRNG.
5189 *) Fix crypto/bn/asm/mips3.s.
5192 *) When only the key is given to "enc", the IV is undefined. Print out
5193 an error message in this case.
5196 *) Handle special case when X509_NAME is empty in X509 printing routines.
5199 *) In dsa_do_verify (crypto/dsa/dsa_ossl.c), verify that r and s are
5200 positive and less than q.
5203 *) Don't change *pointer in CRYPTO_add_lock() is add_lock_callback is
5204 used: it isn't thread safe and the add_lock_callback should handle
5206 [Paul Rose <Paul.Rose@bridge.com>]
5208 *) Verify that incoming data obeys the block size in
5209 ssl3_enc (ssl/s3_enc.c) and tls1_enc (ssl/t1_enc.c).
5213 [Ulf Möller, Bodo Möller]
5215 *) The countermeasure against Bleichbacher's attack on PKCS #1 v1.5
5216 RSA encryption was accidentally removed in s3_srvr.c in OpenSSL 0.9.5
5217 when fixing the server behaviour for backwards-compatible 'client
5218 hello' messages. (Note that the attack is impractical against
5219 SSL 3.0 and TLS 1.0 anyway because length and version checking
5220 means that the probability of guessing a valid ciphertext is
5221 around 2^-40; see section 5 in Bleichenbacher's CRYPTO '98
5224 Before 0.9.5, the countermeasure (hide the error by generating a
5225 random 'decryption result') did not work properly because
5226 ERR_clear_error() was missing, meaning that SSL_get_error() would
5227 detect the supposedly ignored error.
5229 Both problems are now fixed.
5232 *) In crypto/bio/bf_buff.c, increase DEFAULT_BUFFER_SIZE to 4096
5233 (previously it was 1024).
5236 *) Fix for compatibility mode trust settings: ignore trust settings
5237 unless some valid trust or reject settings are present.
5240 *) Fix for blowfish EVP: its a variable length cipher.
5243 *) Fix various bugs related to DSA S/MIME verification. Handle missing
5244 parameters in DSA public key structures and return an error in the
5245 DSA routines if parameters are absent.
5248 *) In versions up to 0.9.6, RAND_file_name() resorted to file ".rnd"
5249 in the current directory if neither $RANDFILE nor $HOME was set.
5250 RAND_file_name() in 0.9.6a returned NULL in this case. This has
5251 caused some confusion to Windows users who haven't defined $HOME.
5252 Thus RAND_file_name() is changed again: e_os.h can define a
5253 DEFAULT_HOME, which will be used if $HOME is not set.
5254 For Windows, we use "C:"; on other platforms, we still require
5255 environment variables.
5257 *) Move 'if (!initialized) RAND_poll()' into regions protected by
5258 CRYPTO_LOCK_RAND. This is not strictly necessary, but avoids
5259 having multiple threads call RAND_poll() concurrently.
5262 *) In crypto/rand/md_rand.c, replace 'add_do_not_lock' flag by a
5263 combination of a flag and a thread ID variable.
5264 Otherwise while one thread is in ssleay_rand_bytes (which sets the
5265 flag), *other* threads can enter ssleay_add_bytes without obeying
5266 the CRYPTO_LOCK_RAND lock (and may even illegally release the lock
5267 that they do not hold after the first thread unsets add_do_not_lock).
5270 *) Change bctest again: '-x' expressions are not available in all
5274 Changes between 0.9.6 and 0.9.6a [5 Apr 2001]
5276 *) Fix a couple of memory leaks in PKCS7_dataDecode()
5277 [Steve Henson, reported by Heyun Zheng <hzheng@atdsprint.com>]
5279 *) Change Configure and Makefiles to provide EXE_EXT, which will contain
5280 the default extension for executables, if any. Also, make the perl
5281 scripts that use symlink() to test if it really exists and use "cp"
5282 if it doesn't. All this made OpenSSL compilable and installable in
5286 *) Fix for asn1_GetSequence() for indefinite length constructed data.
5287 If SEQUENCE is length is indefinite just set c->slen to the total
5288 amount of data available.
5289 [Steve Henson, reported by shige@FreeBSD.org]
5290 [This change does not apply to 0.9.7.]
5292 *) Change bctest to avoid here-documents inside command substitution
5293 (workaround for FreeBSD /bin/sh bug).
5294 For compatibility with Ultrix, avoid shell functions (introduced
5295 in the bctest version that searches along $PATH).
5298 *) Rename 'des_encrypt' to 'des_encrypt1'. This avoids the clashes
5299 with des_encrypt() defined on some operating systems, like Solaris
5303 *) Check the result of RSA-CRT (see D. Boneh, R. DeMillo, R. Lipton:
5304 On the Importance of Eliminating Errors in Cryptographic
5305 Computations, J. Cryptology 14 (2001) 2, 101-119,
5306 http://theory.stanford.edu/~dabo/papers/faults.ps.gz).
5309 *) MIPS assembler BIGNUM division bug fix.
5312 *) Disabled incorrect Alpha assembler code.
5315 *) Fix PKCS#7 decode routines so they correctly update the length
5316 after reading an EOC for the EXPLICIT tag.
5318 [This change does not apply to 0.9.7.]
5320 *) Fix bug in PKCS#12 key generation routines. This was triggered
5321 if a 3DES key was generated with a 0 initial byte. Include
5322 PKCS12_BROKEN_KEYGEN compilation option to retain the old
5323 (but broken) behaviour.
5326 *) Enhance bctest to search for a working bc along $PATH and print
5328 [Tim Rice <tim@multitalents.net> via Richard Levitte]
5330 *) Fix memory leaks in err.c: free err_data string if necessary;
5331 don't write to the wrong index in ERR_set_error_data.
5334 *) Implement ssl23_peek (analogous to ssl23_read), which previously
5338 *) Replace rdtsc with _emit statements for VC++ version 5.
5339 [Jeremy Cooper <jeremy@baymoo.org>]
5341 *) Make it possible to reuse SSLv2 sessions.
5344 *) In copy_email() check for >= 0 as a return value for
5345 X509_NAME_get_index_by_NID() since 0 is a valid index.
5346 [Steve Henson reported by Massimiliano Pala <madwolf@opensca.org>]
5348 *) Avoid coredump with unsupported or invalid public keys by checking if
5349 X509_get_pubkey() fails in PKCS7_verify(). Fix memory leak when
5350 PKCS7_verify() fails with non detached data.
5353 *) Don't use getenv in library functions when run as setuid/setgid.
5354 New function OPENSSL_issetugid().
5357 *) Avoid false positives in memory leak detection code (crypto/mem_dbg.c)
5358 due to incorrect handling of multi-threading:
5360 1. Fix timing glitch in the MemCheck_off() portion of CRYPTO_mem_ctrl().
5362 2. Fix logical glitch in is_MemCheck_on() aka CRYPTO_is_mem_check_on().
5364 3. Count how many times MemCheck_off() has been called so that
5365 nested use can be treated correctly. This also avoids
5366 inband-signalling in the previous code (which relied on the
5367 assumption that thread ID 0 is impossible).
5370 *) Add "-rand" option also to s_client and s_server.
5373 *) Fix CPU detection on Irix 6.x.
5374 [Kurt Hockenbury <khockenb@stevens-tech.edu> and
5375 "Bruce W. Forsberg" <bruce.forsberg@baesystems.com>]
5377 *) Fix X509_NAME bug which produced incorrect encoding if X509_NAME
5380 [This change does not apply to 0.9.7.]
5382 *) Use the cached encoding of an X509_NAME structure rather than
5383 copying it. This is apparently the reason for the libsafe "errors"
5384 but the code is actually correct.
5387 *) Add new function BN_rand_range(), and fix DSA_sign_setup() to prevent
5388 Bleichenbacher's DSA attack.
5389 Extend BN_[pseudo_]rand: As before, top=1 forces the highest two bits
5390 to be set and top=0 forces the highest bit to be set; top=-1 is new
5391 and leaves the highest bit random.
5392 [Ulf Moeller, Bodo Moeller]
5394 *) In the NCONF_...-based implementations for CONF_... queries
5395 (crypto/conf/conf_lib.c), if the input LHASH is NULL, avoid using
5396 a temporary CONF structure with the data component set to NULL
5397 (which gives segmentation faults in lh_retrieve).
5398 Instead, use NULL for the CONF pointer in CONF_get_string and
5399 CONF_get_number (which may use environment variables) and directly
5400 return NULL from CONF_get_section.
5403 *) Fix potential buffer overrun for EBCDIC.
5406 *) Tolerate nonRepudiation as being valid for S/MIME signing and certSign
5407 keyUsage if basicConstraints absent for a CA.
5410 *) Make SMIME_write_PKCS7() write mail header values with a format that
5411 is more generally accepted (no spaces before the semicolon), since
5412 some programs can't parse those values properly otherwise. Also make
5413 sure BIO's that break lines after each write do not create invalid
5417 *) Make the CRL encoding routines work with empty SEQUENCE OF. The
5418 macros previously used would not encode an empty SEQUENCE OF
5419 and break the signature.
5421 [This change does not apply to 0.9.7.]
5423 *) Zero the premaster secret after deriving the master secret in
5427 *) Add some EVP_add_digest_alias registrations (as found in
5428 OpenSSL_add_all_digests()) to SSL_library_init()
5429 aka OpenSSL_add_ssl_algorithms(). This provides improved
5430 compatibility with peers using X.509 certificates
5431 with unconventional AlgorithmIdentifier OIDs.
5434 *) Fix for Irix with NO_ASM.
5435 ["Bruce W. Forsberg" <bruce.forsberg@baesystems.com>]
5437 *) ./config script fixes.
5438 [Ulf Moeller, Richard Levitte]
5440 *) Fix 'openssl passwd -1'.
5443 *) Change PKCS12_key_gen_asc() so it can cope with non null
5444 terminated strings whose length is passed in the passlen
5445 parameter, for example from PEM callbacks. This was done
5446 by adding an extra length parameter to asc2uni().
5447 [Steve Henson, reported by <oddissey@samsung.co.kr>]
5449 *) Fix C code generated by 'openssl dsaparam -C': If a BN_bin2bn
5450 call failed, free the DSA structure.
5453 *) Fix to uni2asc() to cope with zero length Unicode strings.
5454 These are present in some PKCS#12 files.
5457 *) Increase s2->wbuf allocation by one byte in ssl2_new (ssl/s2_lib.c).
5458 Otherwise do_ssl_write (ssl/s2_pkt.c) will write beyond buffer limits
5459 when writing a 32767 byte record.
5460 [Bodo Moeller; problem reported by Eric Day <eday@concentric.net>]
5462 *) In RSA_eay_public_{en,ed}crypt and RSA_eay_mod_exp (rsa_eay.c),
5463 obtain lock CRYPTO_LOCK_RSA before setting rsa->_method_mod_{n,p,q}.
5465 (RSA objects have a reference count access to which is protected
5466 by CRYPTO_LOCK_RSA [see rsa_lib.c, s3_srvr.c, ssl_cert.c, ssl_rsa.c],
5467 so they are meant to be shared between threads.)
5468 [Bodo Moeller, Geoff Thorpe; original patch submitted by
5469 "Reddie, Steven" <Steven.Reddie@ca.com>]
5471 *) Fix a deadlock in CRYPTO_mem_leaks().
5474 *) Use better test patterns in bntest.
5477 *) rand_win.c fix for Borland C.
5480 *) BN_rshift bugfix for n == 0.
5483 *) Add a 'bctest' script that checks for some known 'bc' bugs
5484 so that 'make test' does not abort just because 'bc' is broken.
5487 *) Store verify_result within SSL_SESSION also for client side to
5488 avoid potential security hole. (Re-used sessions on the client side
5489 always resulted in verify_result==X509_V_OK, not using the original
5490 result of the server certificate verification.)
5493 *) Fix ssl3_pending: If the record in s->s3->rrec is not of type
5494 SSL3_RT_APPLICATION_DATA, return 0.
5495 Similarly, change ssl2_pending to return 0 if SSL_in_init(s) is true.
5499 Both ssl2_peek and ssl3_peek, which were totally broken in earlier
5500 releases, have been re-implemented by renaming the previous
5501 implementations of ssl2_read and ssl3_read to ssl2_read_internal
5502 and ssl3_read_internal, respectively, and adding 'peek' parameters
5503 to them. The new ssl[23]_{read,peek} functions are calls to
5504 ssl[23]_read_internal with the 'peek' flag set appropriately.
5505 A 'peek' parameter has also been added to ssl3_read_bytes, which
5506 does the actual work for ssl3_read_internal.
5509 *) Initialise "ex_data" member of RSA/DSA/DH structures prior to calling
5510 the method-specific "init()" handler. Also clean up ex_data after
5511 calling the method-specific "finish()" handler. Previously, this was
5512 happening the other way round.
5515 *) Increase BN_CTX_NUM (the number of BIGNUMs in a BN_CTX) to 16.
5516 The previous value, 12, was not always sufficient for BN_mod_exp().
5519 *) Make sure that shared libraries get the internal name engine with
5520 the full version number and not just 0. This should mark the
5521 shared libraries as not backward compatible. Of course, this should
5522 be changed again when we can guarantee backward binary compatibility.
5525 *) Fix typo in get_cert_by_subject() in by_dir.c
5526 [Jean-Marc Desperrier <jean-marc.desperrier@certplus.com>]
5528 *) Rework the system to generate shared libraries:
5530 - Make note of the expected extension for the shared libraries and
5531 if there is a need for symbolic links from for example libcrypto.so.0
5532 to libcrypto.so.0.9.7. There is extended info in Configure for
5535 - Make as few rebuilds of the shared libraries as possible.
5537 - Still avoid linking the OpenSSL programs with the shared libraries.
5539 - When installing, install the shared libraries separately from the
5543 *) Fix SSL_CTX_set_read_ahead macro to actually use its argument.
5545 Copy SSL_CTX's read_ahead flag to SSL object directly in SSL_new
5546 and not in SSL_clear because the latter is also used by the
5547 accept/connect functions; previously, the settings made by
5548 SSL_set_read_ahead would be lost during the handshake.
5549 [Bodo Moeller; problems reported by Anders Gertz <gertz@epact.se>]
5551 *) Correct util/mkdef.pl to be selective about disabled algorithms.
5552 Previously, it would create entries for disableed algorithms no
5556 *) Added several new manual pages for SSL_* function.
5559 Changes between 0.9.5a and 0.9.6 [24 Sep 2000]
5561 *) In ssl23_get_client_hello, generate an error message when faced
5562 with an initial SSL 3.0/TLS record that is too small to contain the
5563 first two bytes of the ClientHello message, i.e. client_version.
5564 (Note that this is a pathologic case that probably has never happened
5565 in real life.) The previous approach was to use the version number
5566 from the record header as a substitute; but our protocol choice
5567 should not depend on that one because it is not authenticated
5568 by the Finished messages.
5571 *) More robust randomness gathering functions for Windows.
5572 [Jeffrey Altman <jaltman@columbia.edu>]
5574 *) For compatibility reasons if the flag X509_V_FLAG_ISSUER_CHECK is
5575 not set then we don't setup the error code for issuer check errors
5576 to avoid possibly overwriting other errors which the callback does
5577 handle. If an application does set the flag then we assume it knows
5578 what it is doing and can handle the new informational codes
5582 *) Fix for a nasty bug in ASN1_TYPE handling. ASN1_TYPE is used for
5583 a general "ANY" type, as such it should be able to decode anything
5584 including tagged types. However it didn't check the class so it would
5585 wrongly interpret tagged types in the same way as their universal
5586 counterpart and unknown types were just rejected. Changed so that the
5587 tagged and unknown types are handled in the same way as a SEQUENCE:
5588 that is the encoding is stored intact. There is also a new type
5589 "V_ASN1_OTHER" which is used when the class is not universal, in this
5590 case we have no idea what the actual type is so we just lump them all
5594 *) On VMS, stdout may very well lead to a file that is written to
5595 in a record-oriented fashion. That means that every write() will
5596 write a separate record, which will be read separately by the
5597 programs trying to read from it. This can be very confusing.
5599 The solution is to put a BIO filter in the way that will buffer
5600 text until a linefeed is reached, and then write everything a
5601 line at a time, so every record written will be an actual line,
5602 not chunks of lines and not (usually doesn't happen, but I've
5603 seen it once) several lines in one record. BIO_f_linebuffer() is
5606 Currently, it's a VMS-only method, because that's where it has
5607 been tested well enough.
5610 *) Remove 'optimized' squaring variant in BN_mod_mul_montgomery,
5611 it can return incorrect results.
5612 (Note: The buggy variant was not enabled in OpenSSL 0.9.5a,
5613 but it was in 0.9.6-beta[12].)
5616 *) Disable the check for content being present when verifying detached
5617 signatures in pk7_smime.c. Some versions of Netscape (wrongly)
5618 include zero length content when signing messages.
5621 *) New BIO_shutdown_wr macro, which invokes the BIO_C_SHUTDOWN_WR
5622 BIO_ctrl (for BIO pairs).
5625 *) Add DSO method for VMS.
5628 *) Bug fix: Montgomery multiplication could produce results with the
5632 *) Add RPM specification openssl.spec and modify it to build three
5633 packages. The default package contains applications, application
5634 documentation and run-time libraries. The devel package contains
5635 include files, static libraries and function documentation. The
5636 doc package contains the contents of the doc directory. The original
5637 openssl.spec was provided by Damien Miller <djm@mindrot.org>.
5640 *) Add a large number of documentation files for many SSL routines.
5641 [Lutz Jaenicke <Lutz.Jaenicke@aet.TU-Cottbus.DE>]
5643 *) Add a configuration entry for Sony News 4.
5644 [NAKAJI Hiroyuki <nakaji@tutrp.tut.ac.jp>]
5646 *) Don't set the two most significant bits to one when generating a
5647 random number < q in the DSA library.
5650 *) New SSL API mode 'SSL_MODE_AUTO_RETRY'. This disables the default
5651 behaviour that SSL_read may result in SSL_ERROR_WANT_READ (even if
5652 the underlying transport is blocking) if a handshake took place.
5653 (The default behaviour is needed by applications such as s_client
5654 and s_server that use select() to determine when to use SSL_read;
5655 but for applications that know in advance when to expect data, it
5656 just makes things more complicated.)
5659 *) Add RAND_egd_bytes(), which gives control over the number of bytes read
5663 *) Add a few more EBCDIC conditionals that make `req' and `x509'
5664 work better on such systems.
5665 [Martin Kraemer <Martin.Kraemer@MchP.Siemens.De>]
5667 *) Add two demo programs for PKCS12_parse() and PKCS12_create().
5668 Update PKCS12_parse() so it copies the friendlyName and the
5669 keyid to the certificates aux info.
5672 *) Fix bug in PKCS7_verify() which caused an infinite loop
5673 if there was more than one signature.
5674 [Sven Uszpelkat <su@celocom.de>]
5676 *) Major change in util/mkdef.pl to include extra information
5677 about each symbol, as well as presentig variables as well
5678 as functions. This change means that there's n more need
5679 to rebuild the .num files when some algorithms are excluded.
5682 *) Allow the verify time to be set by an application,
5683 rather than always using the current time.
5686 *) Phase 2 verify code reorganisation. The certificate
5687 verify code now looks up an issuer certificate by a
5688 number of criteria: subject name, authority key id
5689 and key usage. It also verifies self signed certificates
5690 by the same criteria. The main comparison function is
5691 X509_check_issued() which performs these checks.
5693 Lot of changes were necessary in order to support this
5694 without completely rewriting the lookup code.
5696 Authority and subject key identifier are now cached.
5698 The LHASH 'certs' is X509_STORE has now been replaced
5699 by a STACK_OF(X509_OBJECT). This is mainly because an
5700 LHASH can't store or retrieve multiple objects with
5701 the same hash value.
5703 As a result various functions (which were all internal
5704 use only) have changed to handle the new X509_STORE
5705 structure. This will break anything that messed round
5706 with X509_STORE internally.
5708 The functions X509_STORE_add_cert() now checks for an
5709 exact match, rather than just subject name.
5711 The X509_STORE API doesn't directly support the retrieval
5712 of multiple certificates matching a given criteria, however
5713 this can be worked round by performing a lookup first
5714 (which will fill the cache with candidate certificates)
5715 and then examining the cache for matches. This is probably
5716 the best we can do without throwing out X509_LOOKUP
5717 entirely (maybe later...).
5719 The X509_VERIFY_CTX structure has been enhanced considerably.
5721 All certificate lookup operations now go via a get_issuer()
5722 callback. Although this currently uses an X509_STORE it
5723 can be replaced by custom lookups. This is a simple way
5724 to bypass the X509_STORE hackery necessary to make this
5725 work and makes it possible to use more efficient techniques
5726 in future. A very simple version which uses a simple
5727 STACK for its trusted certificate store is also provided
5728 using X509_STORE_CTX_trusted_stack().
5730 The verify_cb() and verify() callbacks now have equivalents
5731 in the X509_STORE_CTX structure.
5733 X509_STORE_CTX also has a 'flags' field which can be used
5734 to customise the verify behaviour.
5737 *) Add new PKCS#7 signing option PKCS7_NOSMIMECAP which
5738 excludes S/MIME capabilities.
5741 *) When a certificate request is read in keep a copy of the
5742 original encoding of the signed data and use it when outputing
5743 again. Signatures then use the original encoding rather than
5744 a decoded, encoded version which may cause problems if the
5745 request is improperly encoded.
5748 *) For consistency with other BIO_puts implementations, call
5749 buffer_write(b, ...) directly in buffer_puts instead of calling
5752 In BIO_puts, increment b->num_write as in BIO_write.
5753 [Peter.Sylvester@EdelWeb.fr]
5755 *) Fix BN_mul_word for the case where the word is 0. (We have to use
5756 BN_zero, we may not return a BIGNUM with an array consisting of
5760 *) Avoid calling abort() from within the library when problems are
5761 detected, except if preprocessor symbols have been defined
5762 (such as REF_CHECK, BN_DEBUG etc.).
5765 *) New openssl application 'rsautl'. This utility can be
5766 used for low level RSA operations. DER public key
5767 BIO/fp routines also added.
5770 *) New Configure entry and patches for compiling on QNX 4.
5771 [Andreas Schneider <andreas@ds3.etech.fh-hamburg.de>]
5773 *) A demo state-machine implementation was sponsored by
5774 Nuron (http://www.nuron.com/) and is now available in
5775 demos/state_machine.
5778 *) New options added to the 'dgst' utility for signature
5779 generation and verification.
5782 *) Unrecognized PKCS#7 content types are now handled via a
5783 catch all ASN1_TYPE structure. This allows unsupported
5784 types to be stored as a "blob" and an application can
5785 encode and decode it manually.
5788 *) Fix various signed/unsigned issues to make a_strex.c
5790 [Oscar Jacobsson <oscar.jacobsson@celocom.com>]
5792 *) ASN1 fixes. i2d_ASN1_OBJECT was not returning the correct
5793 length if passed a buffer. ASN1_INTEGER_to_BN failed
5794 if passed a NULL BN and its argument was negative.
5795 [Steve Henson, pointed out by Sven Heiberg <sven@tartu.cyber.ee>]
5797 *) Modification to PKCS#7 encoding routines to output definite
5798 length encoding. Since currently the whole structures are in
5799 memory there's not real point in using indefinite length
5800 constructed encoding. However if OpenSSL is compiled with
5801 the flag PKCS7_INDEFINITE_ENCODING the old form is used.
5804 *) Added BIO_vprintf() and BIO_vsnprintf().
5807 *) Added more prefixes to parse for in the the strings written
5808 through a logging bio, to cover all the levels that are available
5809 through syslog. The prefixes are now:
5811 PANIC, EMERG, EMR => LOG_EMERG
5812 ALERT, ALR => LOG_ALERT
5813 CRIT, CRI => LOG_CRIT
5814 ERROR, ERR => LOG_ERR
5815 WARNING, WARN, WAR => LOG_WARNING
5816 NOTICE, NOTE, NOT => LOG_NOTICE
5817 INFO, INF => LOG_INFO
5818 DEBUG, DBG => LOG_DEBUG
5820 and as before, if none of those prefixes are present at the
5821 beginning of the string, LOG_ERR is chosen.
5823 On Win32, the LOG_* levels are mapped according to this:
5825 LOG_EMERG, LOG_ALERT, LOG_CRIT, LOG_ERR => EVENTLOG_ERROR_TYPE
5826 LOG_WARNING => EVENTLOG_WARNING_TYPE
5827 LOG_NOTICE, LOG_INFO, LOG_DEBUG => EVENTLOG_INFORMATION_TYPE
5831 *) Made it possible to reconfigure with just the configuration
5832 argument "reconf" or "reconfigure". The command line arguments
5833 are stored in Makefile.ssl in the variable CONFIGURE_ARGS,
5834 and are retrieved from there when reconfiguring.
5838 [Assar Westerlund <assar@sics.se>, Richard Levitte]
5840 *) Add the arguments -CAfile and -CApath to the pkcs12 utility.
5843 *) The obj_dat.pl script was messing up the sorting of object
5844 names. The reason was that it compared the quoted version
5845 of strings as a result "OCSP" > "OCSP Signing" because
5846 " > SPACE. Changed script to store unquoted versions of
5847 names and add quotes on output. It was also omitting some
5848 names from the lookup table if they were given a default
5849 value (that is if SN is missing it is given the same
5850 value as LN and vice versa), these are now added on the
5851 grounds that if an object has a name we should be able to
5852 look it up. Finally added warning output when duplicate
5853 short or long names are found.
5856 *) Changes needed for Tandem NSK.
5857 [Scott Uroff <scott@xypro.com>]
5859 *) Fix SSL 2.0 rollback checking: Due to an off-by-one error in
5860 RSA_padding_check_SSLv23(), special padding was never detected
5861 and thus the SSL 3.0/TLS 1.0 countermeasure against protocol
5862 version rollback attacks was not effective.
5864 In s23_clnt.c, don't use special rollback-attack detection padding
5865 (RSA_SSLV23_PADDING) if SSL 2.0 is the only protocol enabled in the
5866 client; similarly, in s23_srvr.c, don't do the rollback check if
5867 SSL 2.0 is the only protocol enabled in the server.
5870 *) Make it possible to get hexdumps of unprintable data with 'openssl
5871 asn1parse'. By implication, the functions ASN1_parse_dump() and
5872 BIO_dump_indent() are added.
5875 *) New functions ASN1_STRING_print_ex() and X509_NAME_print_ex()
5876 these print out strings and name structures based on various
5877 flags including RFC2253 support and proper handling of
5878 multibyte characters. Added options to the 'x509' utility
5879 to allow the various flags to be set.
5882 *) Various fixes to use ASN1_TIME instead of ASN1_UTCTIME.
5883 Also change the functions X509_cmp_current_time() and
5884 X509_gmtime_adj() work with an ASN1_TIME structure,
5885 this will enable certificates using GeneralizedTime in validity
5886 dates to be checked.
5889 *) Make the NEG_PUBKEY_BUG code (which tolerates invalid
5890 negative public key encodings) on by default,
5891 NO_NEG_PUBKEY_BUG can be set to disable it.
5894 *) New function c2i_ASN1_OBJECT() which acts on ASN1_OBJECT
5895 content octets. An i2c_ASN1_OBJECT is unnecessary because
5896 the encoding can be trivially obtained from the structure.
5899 *) crypto/err.c locking bugfix: Use write locks (CRYPTO_w_[un]lock),
5900 not read locks (CRYPTO_r_[un]lock).
5903 *) A first attempt at creating official support for shared
5904 libraries through configuration. I've kept it so the
5905 default is static libraries only, and the OpenSSL programs
5906 are always statically linked for now, but there are
5907 preparations for dynamic linking in place.
5908 This has been tested on Linux and Tru64.
5911 *) Randomness polling function for Win9x, as described in:
5912 Peter Gutmann, Software Generation of Practically Strong
5916 *) Fix so PRNG is seeded in req if using an already existing
5920 *) New options to smime application. -inform and -outform
5921 allow alternative formats for the S/MIME message including
5922 PEM and DER. The -content option allows the content to be
5923 specified separately. This should allow things like Netscape
5924 form signing output easier to verify.
5927 *) Fix the ASN1 encoding of tags using the 'long form'.
5930 *) New ASN1 functions, i2c_* and c2i_* for INTEGER and BIT
5931 STRING types. These convert content octets to and from the
5932 underlying type. The actual tag and length octets are
5933 already assumed to have been read in and checked. These
5934 are needed because all other string types have virtually
5935 identical handling apart from the tag. By having versions
5936 of the ASN1 functions that just operate on content octets
5937 IMPLICIT tagging can be handled properly. It also allows
5938 the ASN1_ENUMERATED code to be cut down because ASN1_ENUMERATED
5939 and ASN1_INTEGER are identical apart from the tag.
5942 *) Change the handling of OID objects as follows:
5944 - New object identifiers are inserted in objects.txt, following
5945 the syntax given in objects.README.
5946 - objects.pl is used to process obj_mac.num and create a new
5948 - obj_dat.pl is used to create a new obj_dat.h, using the data in
5951 This is currently kind of a hack, and the perl code in objects.pl
5952 isn't very elegant, but it works as I intended. The simplest way
5953 to check that it worked correctly is to look in obj_dat.h and
5954 check the array nid_objs and make sure the objects haven't moved
5955 around (this is important!). Additions are OK, as well as
5956 consistent name changes.
5959 *) Add BSD-style MD5-based passwords to 'openssl passwd' (option '-1').
5962 *) Addition of the command line parameter '-rand file' to 'openssl req'.
5963 The given file adds to whatever has already been seeded into the
5964 random pool through the RANDFILE configuration file option or
5965 environment variable, or the default random state file.
5968 *) mkstack.pl now sorts each macro group into lexical order.
5969 Previously the output order depended on the order the files
5970 appeared in the directory, resulting in needless rewriting
5974 *) Patches to make OpenSSL compile under Win32 again. Mostly
5975 work arounds for the VC++ problem that it treats func() as
5976 func(void). Also stripped out the parts of mkdef.pl that
5977 added extra typesafe functions: these no longer exist.
5980 *) Reorganisation of the stack code. The macros are now all
5981 collected in safestack.h . Each macro is defined in terms of
5982 a "stack macro" of the form SKM_<name>(type, a, b). The
5983 DEBUG_SAFESTACK is now handled in terms of function casts,
5984 this has the advantage of retaining type safety without the
5985 use of additional functions. If DEBUG_SAFESTACK is not defined
5986 then the non typesafe macros are used instead. Also modified the
5987 mkstack.pl script to handle the new form. Needs testing to see
5988 if which (if any) compilers it chokes and maybe make DEBUG_SAFESTACK
5989 the default if no major problems. Similar behaviour for ASN1_SET_OF
5990 and PKCS12_STACK_OF.
5993 *) When some versions of IIS use the 'NET' form of private key the
5994 key derivation algorithm is different. Normally MD5(password) is
5995 used as a 128 bit RC4 key. In the modified case
5996 MD5(MD5(password) + "SGCKEYSALT") is used insted. Added some
5997 new functions i2d_RSA_NET(), d2i_RSA_NET() etc which are the same
5998 as the old Netscape_RSA functions except they have an additional
5999 'sgckey' parameter which uses the modified algorithm. Also added
6000 an -sgckey command line option to the rsa utility. Thanks to
6001 Adrian Peck <bertie@ncipher.com> for posting details of the modified
6002 algorithm to openssl-dev.
6005 *) The evp_local.h macros were using 'c.##kname' which resulted in
6006 invalid expansion on some systems (SCO 5.0.5 for example).
6007 Corrected to 'c.kname'.
6008 [Phillip Porch <root@theporch.com>]
6010 *) New X509_get1_email() and X509_REQ_get1_email() functions that return
6011 a STACK of email addresses from a certificate or request, these look
6012 in the subject name and the subject alternative name extensions and
6013 omit any duplicate addresses.
6016 *) Re-implement BN_mod_exp2_mont using independent (and larger) windows.
6017 This makes DSA verification about 2 % faster.
6020 *) Increase maximum window size in BN_mod_exp_... to 6 bits instead of 5
6021 (meaning that now 2^5 values will be precomputed, which is only 4 KB
6022 plus overhead for 1024 bit moduli).
6023 This makes exponentiations about 0.5 % faster for 1024 bit
6024 exponents (as measured by "openssl speed rsa2048").
6027 *) Rename memory handling macros to avoid conflicts with other
6029 Malloc => OPENSSL_malloc
6030 Malloc_locked => OPENSSL_malloc_locked
6031 Realloc => OPENSSL_realloc
6032 Free => OPENSSL_free
6035 *) New function BN_mod_exp_mont_word for small bases (roughly 15%
6036 faster than BN_mod_exp_mont, i.e. 7% for a full DH exchange).
6039 *) CygWin32 support.
6040 [John Jarvie <jjarvie@newsguy.com>]
6042 *) The type-safe stack code has been rejigged. It is now only compiled
6043 in when OpenSSL is configured with the DEBUG_SAFESTACK option and
6044 by default all type-specific stack functions are "#define"d back to
6045 standard stack functions. This results in more streamlined output
6046 but retains the type-safety checking possibilities of the original
6050 *) The STACK code has been cleaned up, and certain type declarations
6051 that didn't make a lot of sense have been brought in line. This has
6052 also involved a cleanup of sorts in safestack.h to more correctly
6053 map type-safe stack functions onto their plain stack counterparts.
6054 This work has also resulted in a variety of "const"ifications of
6055 lots of the code, especially "_cmp" operations which should normally
6056 be prototyped with "const" parameters anyway.
6059 *) When generating bytes for the first time in md_rand.c, 'stir the pool'
6060 by seeding with STATE_SIZE dummy bytes (with zero entropy count).
6061 (The PRNG state consists of two parts, the large pool 'state' and 'md',
6062 where all of 'md' is used each time the PRNG is used, but 'state'
6063 is used only indexed by a cyclic counter. As entropy may not be
6064 well distributed from the beginning, 'md' is important as a
6065 chaining variable. However, the output function chains only half
6066 of 'md', i.e. 80 bits. ssleay_rand_add, on the other hand, chains
6067 all of 'md', and seeding with STATE_SIZE dummy bytes will result
6068 in all of 'state' being rewritten, with the new values depending
6069 on virtually all of 'md'. This overcomes the 80 bit limitation.)
6072 *) In ssl/s2_clnt.c and ssl/s3_clnt.c, call ERR_clear_error() when
6073 the handshake is continued after ssl_verify_cert_chain();
6074 otherwise, if SSL_VERIFY_NONE is set, remaining error codes
6075 can lead to 'unexplainable' connection aborts later.
6076 [Bodo Moeller; problem tracked down by Lutz Jaenicke]
6078 *) Major EVP API cipher revision.
6079 Add hooks for extra EVP features. This allows various cipher
6080 parameters to be set in the EVP interface. Support added for variable
6081 key length ciphers via the EVP_CIPHER_CTX_set_key_length() function and
6082 setting of RC2 and RC5 parameters.
6084 Modify EVP_OpenInit() and EVP_SealInit() to cope with variable key length
6087 Remove lots of duplicated code from the EVP library. For example *every*
6088 cipher init() function handles the 'iv' in the same way according to the
6089 cipher mode. They also all do nothing if the 'key' parameter is NULL and
6090 for CFB and OFB modes they zero ctx->num.
6092 New functionality allows removal of S/MIME code RC2 hack.
6094 Most of the routines have the same form and so can be declared in terms
6097 By shifting this to the top level EVP_CipherInit() it can be removed from
6098 all individual ciphers. If the cipher wants to handle IVs or keys
6099 differently it can set the EVP_CIPH_CUSTOM_IV or EVP_CIPH_ALWAYS_CALL_INIT
6102 Change lots of functions like EVP_EncryptUpdate() to now return a
6103 value: although software versions of the algorithms cannot fail
6104 any installed hardware versions can.
6107 *) Implement SSL_OP_TLS_ROLLBACK_BUG: In ssl3_get_client_key_exchange, if
6108 this option is set, tolerate broken clients that send the negotiated
6109 protocol version number instead of the requested protocol version
6113 *) Call dh_tmp_cb (set by ..._TMP_DH_CB) with correct 'is_export' flag;
6114 i.e. non-zero for export ciphersuites, zero otherwise.
6115 Previous versions had this flag inverted, inconsistent with
6116 rsa_tmp_cb (..._TMP_RSA_CB).
6117 [Bodo Moeller; problem reported by Amit Chopra]
6119 *) Add missing DSA library text string. Work around for some IIS
6120 key files with invalid SEQUENCE encoding.
6123 *) Add a document (doc/standards.txt) that list all kinds of standards
6124 and so on that are implemented in OpenSSL.
6127 *) Enhance c_rehash script. Old version would mishandle certificates
6128 with the same subject name hash and wouldn't handle CRLs at all.
6129 Added -fingerprint option to crl utility, to support new c_rehash
6133 *) Eliminate non-ANSI declarations in crypto.h and stack.h.
6136 *) Fix for SSL server purpose checking. Server checking was
6137 rejecting certificates which had extended key usage present
6138 but no ssl client purpose.
6139 [Steve Henson, reported by Rene Grosser <grosser@hisolutions.com>]
6141 *) Make PKCS#12 code work with no password. The PKCS#12 spec
6142 is a little unclear about how a blank password is handled.
6143 Since the password in encoded as a BMPString with terminating
6144 double NULL a zero length password would end up as just the
6145 double NULL. However no password at all is different and is
6146 handled differently in the PKCS#12 key generation code. NS
6147 treats a blank password as zero length. MSIE treats it as no
6148 password on export: but it will try both on import. We now do
6149 the same: PKCS12_parse() tries zero length and no password if
6150 the password is set to "" or NULL (NULL is now a valid password:
6151 it wasn't before) as does the pkcs12 application.
6154 *) Bugfixes in apps/x509.c: Avoid a memory leak; and don't use
6155 perror when PEM_read_bio_X509_REQ fails, the error message must
6156 be obtained from the error queue.
6159 *) Avoid 'thread_hash' memory leak in crypto/err/err.c by freeing
6160 it in ERR_remove_state if appropriate, and change ERR_get_state
6161 accordingly to avoid race conditions (this is necessary because
6162 thread_hash is no longer constant once set).
6165 *) Bugfix for linux-elf makefile.one.
6168 *) RSA_get_default_method() will now cause a default
6169 RSA_METHOD to be chosen if one doesn't exist already.
6170 Previously this was only set during a call to RSA_new()
6171 or RSA_new_method(NULL) meaning it was possible for
6172 RSA_get_default_method() to return NULL.
6175 *) Added native name translation to the existing DSO code
6176 that will convert (if the flag to do so is set) filenames
6177 that are sufficiently small and have no path information
6178 into a canonical native form. Eg. "blah" converted to
6179 "libblah.so" or "blah.dll" etc.
6182 *) New function ERR_error_string_n(e, buf, len) which is like
6183 ERR_error_string(e, buf), but writes at most 'len' bytes
6184 including the 0 terminator. For ERR_error_string_n, 'buf'
6186 [Damien Miller <djm@mindrot.org>, Bodo Moeller]
6188 *) CONF library reworked to become more general. A new CONF
6189 configuration file reader "class" is implemented as well as a
6190 new functions (NCONF_*, for "New CONF") to handle it. The now
6191 old CONF_* functions are still there, but are reimplemented to
6192 work in terms of the new functions. Also, a set of functions
6193 to handle the internal storage of the configuration data is
6194 provided to make it easier to write new configuration file
6195 reader "classes" (I can definitely see something reading a
6196 configuration file in XML format, for example), called _CONF_*,
6197 or "the configuration storage API"...
6199 The new configuration file reading functions are:
6201 NCONF_new, NCONF_free, NCONF_load, NCONF_load_fp, NCONF_load_bio,
6202 NCONF_get_section, NCONF_get_string, NCONF_get_numbre
6204 NCONF_default, NCONF_WIN32
6206 NCONF_dump_fp, NCONF_dump_bio
6208 NCONF_default and NCONF_WIN32 are method (or "class") choosers,
6209 NCONF_new creates a new CONF object. This works in the same way
6210 as other interfaces in OpenSSL, like the BIO interface.
6211 NCONF_dump_* dump the internal storage of the configuration file,
6212 which is useful for debugging. All other functions take the same
6213 arguments as the old CONF_* functions wth the exception of the
6214 first that must be a `CONF *' instead of a `LHASH *'.
6216 To make it easer to use the new classes with the old CONF_* functions,
6217 the function CONF_set_default_method is provided.
6220 *) Add '-tls1' option to 'openssl ciphers', which was already
6221 mentioned in the documentation but had not been implemented.
6222 (This option is not yet really useful because even the additional
6223 experimental TLS 1.0 ciphers are currently treated as SSL 3.0 ciphers.)
6226 *) Initial DSO code added into libcrypto for letting OpenSSL (and
6227 OpenSSL-based applications) load shared libraries and bind to
6228 them in a portable way.
6229 [Geoff Thorpe, with contributions from Richard Levitte]
6231 Changes between 0.9.5 and 0.9.5a [1 Apr 2000]
6233 *) Make sure _lrotl and _lrotr are only used with MSVC.
6235 *) Use lock CRYPTO_LOCK_RAND correctly in ssleay_rand_status
6236 (the default implementation of RAND_status).
6238 *) Rename openssl x509 option '-crlext', which was added in 0.9.5,
6239 to '-clrext' (= clear extensions), as intended and documented.
6240 [Bodo Moeller; inconsistency pointed out by Michael Attili
6243 *) Fix for HMAC. It wasn't zeroing the rest of the block if the key length
6244 was larger than the MD block size.
6245 [Steve Henson, pointed out by Yost William <YostW@tce.com>]
6247 *) Modernise PKCS12_parse() so it uses STACK_OF(X509) for its ca argument
6248 fix a leak when the ca argument was passed as NULL. Stop X509_PUBKEY_set()
6249 using the passed key: if the passed key was a private key the result
6250 of X509_print(), for example, would be to print out all the private key
6254 *) des_quad_cksum() byte order bug fix.
6255 [Ulf Möller, using the problem description in krb4-0.9.7, where
6256 the solution is attributed to Derrick J Brashear <shadow@DEMENTIA.ORG>]
6258 *) Fix so V_ASN1_APP_CHOOSE works again: however its use is strongly
6260 [Steve Henson, pointed out by Brian Korver <briank@cs.stanford.edu>]
6262 *) For easily testing in shell scripts whether some command
6263 'openssl XXX' exists, the new pseudo-command 'openssl no-XXX'
6264 returns with exit code 0 iff no command of the given name is available.
6265 'no-XXX' is printed in this case, 'XXX' otherwise. In both cases,
6266 the output goes to stdout and nothing is printed to stderr.
6267 Additional arguments are always ignored.
6269 Since for each cipher there is a command of the same name,
6270 the 'no-cipher' compilation switches can be tested this way.
6272 ('openssl no-XXX' is not able to detect pseudo-commands such
6273 as 'quit', 'list-XXX-commands', or 'no-XXX' itself.)
6276 *) Update test suite so that 'make test' succeeds in 'no-rsa' configuration.
6279 *) For SSL_[CTX_]set_tmp_dh, don't create a DH key if SSL_OP_SINGLE_DH_USE
6280 is set; it will be thrown away anyway because each handshake creates
6282 ssl_cert_dup, which is used by SSL_new, now copies DH keys in addition
6283 to parameters -- in previous versions (since OpenSSL 0.9.3) the
6284 'default key' from SSL_CTX_set_tmp_dh would always be lost, meanining
6285 you effectivly got SSL_OP_SINGLE_DH_USE when using this macro.
6288 *) New s_client option -ign_eof: EOF at stdin is ignored, and
6289 'Q' and 'R' lose their special meanings (quit/renegotiate).
6290 This is part of what -quiet does; unlike -quiet, -ign_eof
6291 does not suppress any output.
6294 *) Add compatibility options to the purpose and trust code. The
6295 purpose X509_PURPOSE_ANY is "any purpose" which automatically
6296 accepts a certificate or CA, this was the previous behaviour,
6297 with all the associated security issues.
6299 X509_TRUST_COMPAT is the old trust behaviour: only and
6300 automatically trust self signed roots in certificate store. A
6301 new trust setting X509_TRUST_DEFAULT is used to specify that
6302 a purpose has no associated trust setting and it should instead
6303 use the value in the default purpose.
6306 *) Fix the PKCS#8 DSA private key code so it decodes keys again
6307 and fix a memory leak.
6310 *) In util/mkerr.pl (which implements 'make errors'), preserve
6311 reason strings from the previous version of the .c file, as
6312 the default to have only downcase letters (and digits) in
6313 automatically generated reasons codes is not always appropriate.
6316 *) In ERR_load_ERR_strings(), build an ERR_LIB_SYS error reason table
6317 using strerror. Previously, ERR_reason_error_string() returned
6318 library names as reason strings for SYSerr; but SYSerr is a special
6319 case where small numbers are errno values, not library numbers.
6322 *) Add '-dsaparam' option to 'openssl dhparam' application. This
6323 converts DSA parameters into DH parameters. (When creating parameters,
6324 DSA_generate_parameters is used.)
6327 *) Include 'length' (recommended exponent length) in C code generated
6328 by 'openssl dhparam -C'.
6331 *) The second argument to set_label in perlasm was already being used
6332 so couldn't be used as a "file scope" flag. Moved to third argument
6336 *) In PEM_ASN1_write_bio and some other functions, use RAND_pseudo_bytes
6337 instead of RAND_bytes for encryption IVs and salts.
6340 *) Include RAND_status() into RAND_METHOD instead of implementing
6341 it only for md_rand.c Otherwise replacing the PRNG by calling
6342 RAND_set_rand_method would be impossible.
6345 *) Don't let DSA_generate_key() enter an infinite loop if the random
6346 number generation fails.
6349 *) New 'rand' application for creating pseudo-random output.
6352 *) Added configuration support for Linux/IA64
6353 [Rolf Haberrecker <rolf@suse.de>]
6355 *) Assembler module support for Mingw32.
6358 *) Shared library support for HPUX (in shlib/).
6359 [Lutz Jaenicke <Lutz.Jaenicke@aet.TU-Cottbus.DE> and Anonymous]
6361 *) Shared library support for Solaris gcc.
6362 [Lutz Behnke <behnke@trustcenter.de>]
6364 Changes between 0.9.4 and 0.9.5 [28 Feb 2000]
6366 *) PKCS7_encrypt() was adding text MIME headers twice because they
6367 were added manually and by SMIME_crlf_copy().
6370 *) In bntest.c don't call BN_rand with zero bits argument.
6371 [Steve Henson, pointed out by Andrew W. Gray <agray@iconsinc.com>]
6373 *) BN_mul bugfix: In bn_mul_part_recursion() only the a>a[n] && b>b[n]
6374 case was implemented. This caused BN_div_recp() to fail occasionally.
6377 *) Add an optional second argument to the set_label() in the perl
6378 assembly language builder. If this argument exists and is set
6379 to 1 it signals that the assembler should use a symbol whose
6380 scope is the entire file, not just the current function. This
6381 is needed with MASM which uses the format label:: for this scope.
6382 [Steve Henson, pointed out by Peter Runestig <peter@runestig.com>]
6384 *) Change the ASN1 types so they are typedefs by default. Before
6385 almost all types were #define'd to ASN1_STRING which was causing
6386 STACK_OF() problems: you couldn't declare STACK_OF(ASN1_UTF8STRING)
6390 *) Change names of new functions to the new get1/get0 naming
6391 convention: After 'get1', the caller owns a reference count
6392 and has to call ..._free; 'get0' returns a pointer to some
6393 data structure without incrementing reference counters.
6394 (Some of the existing 'get' functions increment a reference
6395 counter, some don't.)
6396 Similarly, 'set1' and 'add1' functions increase reference
6397 counters or duplicate objects.
6400 *) Allow for the possibility of temp RSA key generation failure:
6401 the code used to assume it always worked and crashed on failure.
6404 *) Fix potential buffer overrun problem in BIO_printf().
6405 [Ulf Möller, using public domain code by Patrick Powell; problem
6406 pointed out by David Sacerdote <das33@cornell.edu>]
6408 *) Support EGD <http://www.lothar.com/tech/crypto/>. New functions
6409 RAND_egd() and RAND_status(). In the command line application,
6410 the EGD socket can be specified like a seed file using RANDFILE
6414 *) Allow the string CERTIFICATE to be tolerated in PKCS#7 structures.
6415 Some CAs (e.g. Verisign) distribute certificates in this form.
6418 *) Remove the SSL_ALLOW_ADH compile option and set the default cipher
6419 list to exclude them. This means that no special compilation option
6420 is needed to use anonymous DH: it just needs to be included in the
6424 *) Change the EVP_MD_CTX_type macro so its meaning consistent with
6425 EVP_MD_type. The old functionality is available in a new macro called
6426 EVP_MD_md(). Change code that uses it and update docs.
6429 *) ..._ctrl functions now have corresponding ..._callback_ctrl functions
6430 where the 'void *' argument is replaced by a function pointer argument.
6431 Previously 'void *' was abused to point to functions, which works on
6432 many platforms, but is not correct. As these functions are usually
6433 called by macros defined in OpenSSL header files, most source code
6434 should work without changes.
6437 *) <openssl/opensslconf.h> (which is created by Configure) now contains
6438 sections with information on -D... compiler switches used for
6439 compiling the library so that applications can see them. To enable
6440 one of these sections, a pre-processor symbol OPENSSL_..._DEFINES
6441 must be defined. E.g.,
6442 #define OPENSSL_ALGORITHM_DEFINES
6443 #include <openssl/opensslconf.h>
6444 defines all pertinent NO_<algo> symbols, such as NO_IDEA, NO_RSA, etc.
6445 [Richard Levitte, Ulf and Bodo Möller]
6447 *) Bugfix: Tolerate fragmentation and interleaving in the SSL 3/TLS
6451 *) Change the 'other' type in certificate aux info to a STACK_OF
6452 X509_ALGOR. Although not an AlgorithmIdentifier as such it has
6453 the required ASN1 format: arbitrary types determined by an OID.
6456 *) Add some PEM_write_X509_REQ_NEW() functions and a command line
6457 argument to 'req'. This is not because the function is newer or
6458 better than others it just uses the work 'NEW' in the certificate
6459 request header lines. Some software needs this.
6462 *) Reorganise password command line arguments: now passwords can be
6463 obtained from various sources. Delete the PEM_cb function and make
6464 it the default behaviour: i.e. if the callback is NULL and the
6465 usrdata argument is not NULL interpret it as a null terminated pass
6466 phrase. If usrdata and the callback are NULL then the pass phrase
6467 is prompted for as usual.
6470 *) Add support for the Compaq Atalla crypto accelerator. If it is installed,
6471 the support is automatically enabled. The resulting binaries will
6472 autodetect the card and use it if present.
6473 [Ben Laurie and Compaq Inc.]
6475 *) Work around for Netscape hang bug. This sends certificate request
6476 and server done in one record. Since this is perfectly legal in the
6477 SSL/TLS protocol it isn't a "bug" option and is on by default. See
6478 the bugs/SSLv3 entry for more info.
6481 *) HP-UX tune-up: new unified configs, HP C compiler bug workaround.
6484 *) Add -rand argument to smime and pkcs12 applications and read/write
6488 *) New 'passwd' tool for crypt(3) and apr1 password hashes.
6491 *) Add command line password options to the remaining applications.
6494 *) Bug fix for BN_div_recp() for numerators with an even number of
6498 *) More tests in bntest.c, and changed test_bn output.
6501 *) ./config recognizes MacOS X now.
6504 *) Bug fix for BN_div() when the first words of num and divsor are
6505 equal (it gave wrong results if (rem=(n1-q*d0)&BN_MASK2) < d0).
6508 *) Add support for various broken PKCS#8 formats, and command line
6509 options to produce them.
6512 *) New functions BN_CTX_start(), BN_CTX_get() and BT_CTX_end() to
6513 get temporary BIGNUMs from a BN_CTX.
6516 *) Correct return values in BN_mod_exp_mont() and BN_mod_exp2_mont()
6520 *) Change the SSLeay_add_all_*() functions to OpenSSL_add_all_*() and
6521 include a #define from the old name to the new. The original intent
6522 was that statically linked binaries could for example just call
6523 SSLeay_add_all_ciphers() to just add ciphers to the table and not
6524 link with digests. This never worked becayse SSLeay_add_all_digests()
6525 and SSLeay_add_all_ciphers() were in the same source file so calling
6526 one would link with the other. They are now in separate source files.
6529 *) Add a new -notext option to 'ca' and a -pubkey option to 'spkac'.
6532 *) Use a less unusual form of the Miller-Rabin primality test (it used
6533 a binary algorithm for exponentiation integrated into the Miller-Rabin
6534 loop, our standard modexp algorithms are faster).
6537 *) Support for the EBCDIC character set completed.
6538 [Martin Kraemer <Martin.Kraemer@Mch.SNI.De>]
6540 *) Source code cleanups: use const where appropriate, eliminate casts,
6541 use void * instead of char * in lhash.
6544 *) Bugfix: ssl3_send_server_key_exchange was not restartable
6545 (the state was not changed to SSL3_ST_SW_KEY_EXCH_B, and because of
6546 this the server could overwrite ephemeral keys that the client
6550 *) Turn DSA_is_prime into a macro that calls BN_is_prime,
6551 using 50 iterations of the Rabin-Miller test.
6553 DSA_generate_parameters now uses BN_is_prime_fasttest (with 50
6554 iterations of the Rabin-Miller test as required by the appendix
6555 to FIPS PUB 186[-1]) instead of DSA_is_prime.
6556 As BN_is_prime_fasttest includes trial division, DSA parameter
6557 generation becomes much faster.
6559 This implies a change for the callback functions in DSA_is_prime
6560 and DSA_generate_parameters: The callback function is called once
6561 for each positive witness in the Rabin-Miller test, not just
6562 occasionally in the inner loop; and the parameters to the
6563 callback function now provide an iteration count for the outer
6564 loop rather than for the current invocation of the inner loop.
6565 DSA_generate_parameters additionally can call the callback
6566 function with an 'iteration count' of -1, meaning that a
6567 candidate has passed the trial division test (when q is generated
6568 from an application-provided seed, trial division is skipped).
6571 *) New function BN_is_prime_fasttest that optionally does trial
6572 division before starting the Rabin-Miller test and has
6573 an additional BN_CTX * argument (whereas BN_is_prime always
6574 has to allocate at least one BN_CTX).
6575 'callback(1, -1, cb_arg)' is called when a number has passed the
6576 trial division stage.
6579 *) Fix for bug in CRL encoding. The validity dates weren't being handled
6583 *) New -pkcs12 option to CA.pl script to write out a PKCS#12 file.
6586 *) New function BN_pseudo_rand().
6589 *) Clean up BN_mod_mul_montgomery(): replace the broken (and unreadable)
6590 bignum version of BN_from_montgomery() with the working code from
6591 SSLeay 0.9.0 (the word based version is faster anyway), and clean up
6595 *) Avoid a race condition in s2_clnt.c (function get_server_hello) that
6596 made it impossible to use the same SSL_SESSION data structure in
6597 SSL2 clients in multiple threads.
6600 *) The return value of RAND_load_file() no longer counts bytes obtained
6601 by stat(). RAND_load_file(..., -1) is new and uses the complete file
6602 to seed the PRNG (previously an explicit byte count was required).
6603 [Ulf Möller, Bodo Möller]
6605 *) Clean up CRYPTO_EX_DATA functions, some of these didn't have prototypes
6606 used (char *) instead of (void *) and had casts all over the place.
6609 *) Make BN_generate_prime() return NULL on error if ret!=NULL.
6612 *) Retain source code compatibility for BN_prime_checks macro:
6613 BN_is_prime(..., BN_prime_checks, ...) now uses
6614 BN_prime_checks_for_size to determine the appropriate number of
6615 Rabin-Miller iterations.
6618 *) Diffie-Hellman uses "safe" primes: DH_check() return code renamed to
6619 DH_CHECK_P_NOT_SAFE_PRIME.
6620 (Check if this is true? OpenPGP calls them "strong".)
6623 *) Merge the functionality of "dh" and "gendh" programs into a new program
6624 "dhparam". The old programs are retained for now but will handle DH keys
6625 (instead of parameters) in future.
6628 *) Make the ciphers, s_server and s_client programs check the return values
6629 when a new cipher list is set.
6632 *) Enhance the SSL/TLS cipher mechanism to correctly handle the TLS 56bit
6633 ciphers. Before when the 56bit ciphers were enabled the sorting was
6636 The syntax for the cipher sorting has been extended to support sorting by
6637 cipher-strength (using the strength_bits hard coded in the tables).
6638 The new command is "@STRENGTH" (see also doc/apps/ciphers.pod).
6640 Fix a bug in the cipher-command parser: when supplying a cipher command
6641 string with an "undefined" symbol (neither command nor alphanumeric
6642 [A-Za-z0-9], ssl_set_cipher_list used to hang in an endless loop. Now
6643 an error is flagged.
6645 Due to the strength-sorting extension, the code of the
6646 ssl_create_cipher_list() function was completely rearranged. I hope that
6647 the readability was also increased :-)
6648 [Lutz Jaenicke <Lutz.Jaenicke@aet.TU-Cottbus.DE>]
6650 *) Minor change to 'x509' utility. The -CAcreateserial option now uses 1
6651 for the first serial number and places 2 in the serial number file. This
6652 avoids problems when the root CA is created with serial number zero and
6653 the first user certificate has the same issuer name and serial number
6657 *) Fixes to X509_ATTRIBUTE utilities, change the 'req' program so it uses
6658 the new code. Add documentation for this stuff.
6661 *) Changes to X509_ATTRIBUTE utilities. These have been renamed from
6662 X509_*() to X509at_*() on the grounds that they don't handle X509
6663 structures and behave in an analagous way to the X509v3 functions:
6664 they shouldn't be called directly but wrapper functions should be used
6667 So we also now have some wrapper functions that call the X509at functions
6668 when passed certificate requests. (TO DO: similar things can be done with
6669 PKCS#7 signed and unsigned attributes, PKCS#12 attributes and a few other
6670 things. Some of these need some d2i or i2d and print functionality
6671 because they handle more complex structures.)
6674 *) Add missing #ifndefs that caused missing symbols when building libssl
6675 as a shared library without RSA. Use #ifndef NO_SSL2 instead of
6676 NO_RSA in ssl/s2*.c.
6677 [Kris Kennaway <kris@hub.freebsd.org>, modified by Ulf Möller]
6679 *) Precautions against using the PRNG uninitialized: RAND_bytes() now
6680 has a return value which indicates the quality of the random data
6681 (1 = ok, 0 = not seeded). Also an error is recorded on the thread's
6682 error queue. New function RAND_pseudo_bytes() generates output that is
6683 guaranteed to be unique but not unpredictable. RAND_add is like
6684 RAND_seed, but takes an extra argument for an entropy estimate
6685 (RAND_seed always assumes full entropy).
6688 *) Do more iterations of Rabin-Miller probable prime test (specifically,
6689 3 for 1024-bit primes, 6 for 512-bit primes, 12 for 256-bit primes
6690 instead of only 2 for all lengths; see BN_prime_checks_for_size definition
6691 in crypto/bn/bn_prime.c for the complete table). This guarantees a
6692 false-positive rate of at most 2^-80 for random input.
6695 *) Rewrite ssl3_read_n (ssl/s3_pkt.c) avoiding a couple of bugs.
6698 *) New function X509_CTX_rget_chain() (renamed to X509_CTX_get1_chain
6699 in the 0.9.5 release), this returns the chain
6700 from an X509_CTX structure with a dup of the stack and all
6701 the X509 reference counts upped: so the stack will exist
6702 after X509_CTX_cleanup() has been called. Modify pkcs12.c
6705 Also make SSL_SESSION_print() print out the verify return
6709 *) Add manpage for the pkcs12 command. Also change the default
6710 behaviour so MAC iteration counts are used unless the new
6711 -nomaciter option is used. This improves file security and
6712 only older versions of MSIE (4.0 for example) need it.
6715 *) Honor the no-xxx Configure options when creating .DEF files.
6718 *) Add PKCS#10 attributes to field table: challengePassword,
6719 unstructuredName and unstructuredAddress. These are taken from
6720 draft PKCS#9 v2.0 but are compatible with v1.2 provided no
6721 international characters are used.
6723 More changes to X509_ATTRIBUTE code: allow the setting of types
6724 based on strings. Remove the 'loc' parameter when adding
6725 attributes because these will be a SET OF encoding which is sorted
6729 *) Initial changes to the 'req' utility to allow request generation
6730 automation. This will allow an application to just generate a template
6731 file containing all the field values and have req construct the
6734 Initial support for X509_ATTRIBUTE handling. Stacks of these are
6735 used all over the place including certificate requests and PKCS#7
6736 structures. They are currently handled manually where necessary with
6737 some primitive wrappers for PKCS#7. The new functions behave in a
6738 manner analogous to the X509 extension functions: they allow
6739 attributes to be looked up by NID and added.
6741 Later something similar to the X509V3 code would be desirable to
6742 automatically handle the encoding, decoding and printing of the
6743 more complex types. The string types like challengePassword can
6744 be handled by the string table functions.
6746 Also modified the multi byte string table handling. Now there is
6747 a 'global mask' which masks out certain types. The table itself
6748 can use the flag STABLE_NO_MASK to ignore the mask setting: this
6749 is useful when for example there is only one permissible type
6750 (as in countryName) and using the mask might result in no valid
6754 *) Clean up 'Finished' handling, and add functions SSL_get_finished and
6755 SSL_get_peer_finished to allow applications to obtain the latest
6756 Finished messages sent to the peer or expected from the peer,
6757 respectively. (SSL_get_peer_finished is usually the Finished message
6758 actually received from the peer, otherwise the protocol will be aborted.)
6760 As the Finished message are message digests of the complete handshake
6761 (with a total of 192 bits for TLS 1.0 and more for SSL 3.0), they can
6762 be used for external authentication procedures when the authentication
6763 provided by SSL/TLS is not desired or is not enough.
6766 *) Enhanced support for Alpha Linux is added. Now ./config checks if
6767 the host supports BWX extension and if Compaq C is present on the
6768 $PATH. Just exploiting of the BWX extension results in 20-30%
6769 performance kick for some algorithms, e.g. DES and RC4 to mention
6770 a couple. Compaq C in turn generates ~20% faster code for MD5 and
6774 *) Add support for MS "fast SGC". This is arguably a violation of the
6775 SSL3/TLS protocol. Netscape SGC does two handshakes: the first with
6776 weak crypto and after checking the certificate is SGC a second one
6777 with strong crypto. MS SGC stops the first handshake after receiving
6778 the server certificate message and sends a second client hello. Since
6779 a server will typically do all the time consuming operations before
6780 expecting any further messages from the client (server key exchange
6781 is the most expensive) there is little difference between the two.
6783 To get OpenSSL to support MS SGC we have to permit a second client
6784 hello message after we have sent server done. In addition we have to
6785 reset the MAC if we do get this second client hello.
6788 *) Add a function 'd2i_AutoPrivateKey()' this will automatically decide
6789 if a DER encoded private key is RSA or DSA traditional format. Changed
6790 d2i_PrivateKey_bio() to use it. This is only needed for the "traditional"
6791 format DER encoded private key. Newer code should use PKCS#8 format which
6792 has the key type encoded in the ASN1 structure. Added DER private key
6793 support to pkcs8 application.
6796 *) SSL 3/TLS 1 servers now don't request certificates when an anonymous
6797 ciphersuites has been selected (as required by the SSL 3/TLS 1
6798 specifications). Exception: When SSL_VERIFY_FAIL_IF_NO_PEER_CERT
6799 is set, we interpret this as a request to violate the specification
6800 (the worst that can happen is a handshake failure, and 'correct'
6801 behaviour would result in a handshake failure anyway).
6804 *) In SSL_CTX_add_session, take into account that there might be multiple
6805 SSL_SESSION structures with the same session ID (e.g. when two threads
6806 concurrently obtain them from an external cache).
6807 The internal cache can handle only one SSL_SESSION with a given ID,
6808 so if there's a conflict, we now throw out the old one to achieve
6812 *) Add OIDs for idea and blowfish in CBC mode. This will allow both
6813 to be used in PKCS#5 v2.0 and S/MIME. Also add checking to
6814 some routines that use cipher OIDs: some ciphers do not have OIDs
6815 defined and so they cannot be used for S/MIME and PKCS#5 v2.0 for
6819 *) Simplify the trust setting structure and code. Now we just have
6820 two sequences of OIDs for trusted and rejected settings. These will
6821 typically have values the same as the extended key usage extension
6822 and any application specific purposes.
6824 The trust checking code now has a default behaviour: it will just
6825 check for an object with the same NID as the passed id. Functions can
6826 be provided to override either the default behaviour or the behaviour
6827 for a given id. SSL client, server and email already have functions
6828 in place for compatibility: they check the NID and also return "trusted"
6829 if the certificate is self signed.
6832 *) Add d2i,i2d bio/fp functions for PrivateKey: these convert the
6833 traditional format into an EVP_PKEY structure.
6836 *) Add a password callback function PEM_cb() which either prompts for
6837 a password if usr_data is NULL or otherwise assumes it is a null
6838 terminated password. Allow passwords to be passed on command line
6839 environment or config files in a few more utilities.
6842 *) Add a bunch of DER and PEM functions to handle PKCS#8 format private
6843 keys. Add some short names for PKCS#8 PBE algorithms and allow them
6844 to be specified on the command line for the pkcs8 and pkcs12 utilities.
6845 Update documentation.
6848 *) Support for ASN1 "NULL" type. This could be handled before by using
6849 ASN1_TYPE but there wasn't any function that would try to read a NULL
6850 and produce an error if it couldn't. For compatibility we also have
6851 ASN1_NULL_new() and ASN1_NULL_free() functions but these are faked and
6852 don't allocate anything because they don't need to.
6855 *) Initial support for MacOS is now provided. Examine INSTALL.MacOS
6857 [Andy Polyakov, Roy Woods <roy@centicsystems.ca>]
6859 *) Rebuild of the memory allocation routines used by OpenSSL code and
6860 possibly others as well. The purpose is to make an interface that
6861 provide hooks so anyone can build a separate set of allocation and
6862 deallocation routines to be used by OpenSSL, for example memory
6863 pool implementations, or something else, which was previously hard
6864 since Malloc(), Realloc() and Free() were defined as macros having
6865 the values malloc, realloc and free, respectively (except for Win32
6866 compilations). The same is provided for memory debugging code.
6867 OpenSSL already comes with functionality to find memory leaks, but
6868 this gives people a chance to debug other memory problems.
6870 With these changes, a new set of functions and macros have appeared:
6872 CRYPTO_set_mem_debug_functions() [F]
6873 CRYPTO_get_mem_debug_functions() [F]
6874 CRYPTO_dbg_set_options() [F]
6875 CRYPTO_dbg_get_options() [F]
6876 CRYPTO_malloc_debug_init() [M]
6878 The memory debug functions are NULL by default, unless the library
6879 is compiled with CRYPTO_MDEBUG or friends is defined. If someone
6880 wants to debug memory anyway, CRYPTO_malloc_debug_init() (which
6881 gives the standard debugging functions that come with OpenSSL) or
6882 CRYPTO_set_mem_debug_functions() (tells OpenSSL to use functions
6883 provided by the library user) must be used. When the standard
6884 debugging functions are used, CRYPTO_dbg_set_options can be used to
6885 request additional information:
6886 CRYPTO_dbg_set_options(V_CYRPTO_MDEBUG_xxx) corresponds to setting
6887 the CRYPTO_MDEBUG_xxx macro when compiling the library.
6889 Also, things like CRYPTO_set_mem_functions will always give the
6890 expected result (the new set of functions is used for allocation
6891 and deallocation) at all times, regardless of platform and compiler
6894 To finish it up, some functions that were never use in any other
6895 way than through macros have a new API and new semantic:
6898 CRYPTO_dbg_realloc()
6901 All macros of value have retained their old syntax.
6902 [Richard Levitte and Bodo Moeller]
6904 *) Some S/MIME fixes. The OID for SMIMECapabilities was wrong, the
6905 ordering of SMIMECapabilities wasn't in "strength order" and there
6906 was a missing NULL in the AlgorithmIdentifier for the SHA1 signature
6910 *) Some ASN1 types with illegal zero length encoding (INTEGER,
6911 ENUMERATED and OBJECT IDENTIFIER) choked the ASN1 routines.
6912 [Frans Heymans <fheymans@isaserver.be>, modified by Steve Henson]
6914 *) Merge in my S/MIME library for OpenSSL. This provides a simple
6915 S/MIME API on top of the PKCS#7 code, a MIME parser (with enough
6916 functionality to handle multipart/signed properly) and a utility
6917 called 'smime' to call all this stuff. This is based on code I
6918 originally wrote for Celo who have kindly allowed it to be
6919 included in OpenSSL.
6922 *) Add variants des_set_key_checked and des_set_key_unchecked of
6923 des_set_key (aka des_key_sched). Global variable des_check_key
6924 decides which of these is called by des_set_key; this way
6925 des_check_key behaves as it always did, but applications and
6926 the library itself, which was buggy for des_check_key == 1,
6927 have a cleaner way to pick the version they need.
6930 *) New function PKCS12_newpass() which changes the password of a
6934 *) Modify X509_TRUST and X509_PURPOSE so it also uses a static and
6935 dynamic mix. In both cases the ids can be used as an index into the
6936 table. Also modified the X509_TRUST_add() and X509_PURPOSE_add()
6937 functions so they accept a list of the field values and the
6938 application doesn't need to directly manipulate the X509_TRUST
6942 *) Modify the ASN1_STRING_TABLE stuff so it also uses bsearch and doesn't
6946 *) Modify the way the V3 extension code looks up extensions. This now
6947 works in a similar way to the object code: we have some "standard"
6948 extensions in a static table which is searched with OBJ_bsearch()
6949 and the application can add dynamic ones if needed. The file
6950 crypto/x509v3/ext_dat.h now has the info: this file needs to be
6951 updated whenever a new extension is added to the core code and kept
6952 in ext_nid order. There is a simple program 'tabtest.c' which checks
6953 this. New extensions are not added too often so this file can readily
6954 be maintained manually.
6956 There are two big advantages in doing things this way. The extensions
6957 can be looked up immediately and no longer need to be "added" using
6958 X509V3_add_standard_extensions(): this function now does nothing.
6959 [Side note: I get *lots* of email saying the extension code doesn't
6960 work because people forget to call this function]
6961 Also no dynamic allocation is done unless new extensions are added:
6962 so if we don't add custom extensions there is no need to call
6963 X509V3_EXT_cleanup().
6966 *) Modify enc utility's salting as follows: make salting the default. Add a
6967 magic header, so unsalted files fail gracefully instead of just decrypting
6968 to garbage. This is because not salting is a big security hole, so people
6969 should be discouraged from doing it.
6972 *) Fixes and enhancements to the 'x509' utility. It allowed a message
6973 digest to be passed on the command line but it only used this
6974 parameter when signing a certificate. Modified so all relevant
6975 operations are affected by the digest parameter including the
6976 -fingerprint and -x509toreq options. Also -x509toreq choked if a
6977 DSA key was used because it didn't fix the digest.
6980 *) Initial certificate chain verify code. Currently tests the untrusted
6981 certificates for consistency with the verify purpose (which is set
6982 when the X509_STORE_CTX structure is set up) and checks the pathlength.
6984 There is a NO_CHAIN_VERIFY compilation option to keep the old behaviour:
6985 this is because it will reject chains with invalid extensions whereas
6986 every previous version of OpenSSL and SSLeay made no checks at all.
6988 Trust code: checks the root CA for the relevant trust settings. Trust
6989 settings have an initial value consistent with the verify purpose: e.g.
6990 if the verify purpose is for SSL client use it expects the CA to be
6991 trusted for SSL client use. However the default value can be changed to
6992 permit custom trust settings: one example of this would be to only trust
6993 certificates from a specific "secure" set of CAs.
6995 Also added X509_STORE_CTX_new() and X509_STORE_CTX_free() functions
6996 which should be used for version portability: especially since the
6997 verify structure is likely to change more often now.
6999 SSL integration. Add purpose and trust to SSL_CTX and SSL and functions
7000 to set them. If not set then assume SSL clients will verify SSL servers
7003 Two new options to the verify program: -untrusted allows a set of
7004 untrusted certificates to be passed in and -purpose which sets the
7005 intended purpose of the certificate. If a purpose is set then the
7006 new chain verify code is used to check extension consistency.
7009 *) Support for the authority information access extension.
7012 *) Modify RSA and DSA PEM read routines to transparently handle
7013 PKCS#8 format private keys. New *_PUBKEY_* functions that handle
7014 public keys in a format compatible with certificate
7015 SubjectPublicKeyInfo structures. Unfortunately there were already
7016 functions called *_PublicKey_* which used various odd formats so
7017 these are retained for compatibility: however the DSA variants were
7018 never in a public release so they have been deleted. Changed dsa/rsa
7019 utilities to handle the new format: note no releases ever handled public
7020 keys so we should be OK.
7022 The primary motivation for this change is to avoid the same fiasco
7023 that dogs private keys: there are several incompatible private key
7024 formats some of which are standard and some OpenSSL specific and
7025 require various evil hacks to allow partial transparent handling and
7026 even then it doesn't work with DER formats. Given the option anything
7027 other than PKCS#8 should be dumped: but the other formats have to
7028 stay in the name of compatibility.
7030 With public keys and the benefit of hindsight one standard format
7031 is used which works with EVP_PKEY, RSA or DSA structures: though
7032 it clearly returns an error if you try to read the wrong kind of key.
7034 Added a -pubkey option to the 'x509' utility to output the public key.
7035 Also rename the EVP_PKEY_get_*() to EVP_PKEY_rget_*()
7036 (renamed to EVP_PKEY_get1_*() in the OpenSSL 0.9.5 release) and add
7037 EVP_PKEY_rset_*() functions (renamed to EVP_PKEY_set1_*())
7038 that do the same as the EVP_PKEY_assign_*() except they up the
7039 reference count of the added key (they don't "swallow" the
7043 *) Fixes to crypto/x509/by_file.c the code to read in certificates and
7044 CRLs would fail if the file contained no certificates or no CRLs:
7045 added a new function to read in both types and return the number
7046 read: this means that if none are read it will be an error. The
7047 DER versions of the certificate and CRL reader would always fail
7048 because it isn't possible to mix certificates and CRLs in DER format
7049 without choking one or the other routine. Changed this to just read
7050 a certificate: this is the best we can do. Also modified the code
7051 in apps/verify.c to take notice of return codes: it was previously
7052 attempting to read in certificates from NULL pointers and ignoring
7053 any errors: this is one reason why the cert and CRL reader seemed
7054 to work. It doesn't check return codes from the default certificate
7055 routines: these may well fail if the certificates aren't installed.
7058 *) Code to support otherName option in GeneralName.
7061 *) First update to verify code. Change the verify utility
7062 so it warns if it is passed a self signed certificate:
7063 for consistency with the normal behaviour. X509_verify
7064 has been modified to it will now verify a self signed
7065 certificate if *exactly* the same certificate appears
7066 in the store: it was previously impossible to trust a
7067 single self signed certificate. This means that:
7068 openssl verify ss.pem
7069 now gives a warning about a self signed certificate but
7070 openssl verify -CAfile ss.pem ss.pem
7074 *) For servers, store verify_result in SSL_SESSION data structure
7075 (and add it to external session representation).
7076 This is needed when client certificate verifications fails,
7077 but an application-provided verification callback (set by
7078 SSL_CTX_set_cert_verify_callback) allows accepting the session
7079 anyway (i.e. leaves x509_store_ctx->error != X509_V_OK
7080 but returns 1): When the session is reused, we have to set
7081 ssl->verify_result to the appropriate error code to avoid
7083 [Bodo Moeller, problem pointed out by Lutz Jaenicke]
7085 *) Fix a bug in the new PKCS#7 code: it didn't consider the
7086 case in PKCS7_dataInit() where the signed PKCS7 structure
7087 didn't contain any existing data because it was being created.
7088 [Po-Cheng Chen <pocheng@nst.com.tw>, slightly modified by Steve Henson]
7090 *) Add a salt to the key derivation routines in enc.c. This
7091 forms the first 8 bytes of the encrypted file. Also add a
7092 -S option to allow a salt to be input on the command line.
7095 *) New function X509_cmp(). Oddly enough there wasn't a function
7096 to compare two certificates. We do this by working out the SHA1
7097 hash and comparing that. X509_cmp() will be needed by the trust
7101 *) SSL_get1_session() is like SSL_get_session(), but increments
7102 the reference count in the SSL_SESSION returned.
7103 [Geoff Thorpe <geoff@eu.c2.net>]
7105 *) Fix for 'req': it was adding a null to request attributes.
7106 Also change the X509_LOOKUP and X509_INFO code to handle
7107 certificate auxiliary information.
7110 *) Add support for 40 and 64 bit RC2 and RC4 algorithms: document
7114 *) Add the possibility to add extra information to the memory leak
7115 detecting output, to form tracebacks, showing from where each
7116 allocation was originated: CRYPTO_push_info("constant string") adds
7117 the string plus current file name and line number to a per-thread
7118 stack, CRYPTO_pop_info() does the obvious, CRYPTO_remove_all_info()
7119 is like calling CYRPTO_pop_info() until the stack is empty.
7120 Also updated memory leak detection code to be multi-thread-safe.
7123 *) Add options -text and -noout to pkcs7 utility and delete the
7124 encryption options which never did anything. Update docs.
7127 *) Add options to some of the utilities to allow the pass phrase
7128 to be included on either the command line (not recommended on
7129 OSes like Unix) or read from the environment. Update the
7130 manpages and fix a few bugs.
7133 *) Add a few manpages for some of the openssl commands.
7136 *) Fix the -revoke option in ca. It was freeing up memory twice,
7137 leaking and not finding already revoked certificates.
7140 *) Extensive changes to support certificate auxiliary information.
7141 This involves the use of X509_CERT_AUX structure and X509_AUX
7142 functions. An X509_AUX function such as PEM_read_X509_AUX()
7143 can still read in a certificate file in the usual way but it
7144 will also read in any additional "auxiliary information". By
7145 doing things this way a fair degree of compatibility can be
7146 retained: existing certificates can have this information added
7147 using the new 'x509' options.
7149 Current auxiliary information includes an "alias" and some trust
7150 settings. The trust settings will ultimately be used in enhanced
7151 certificate chain verification routines: currently a certificate
7152 can only be trusted if it is self signed and then it is trusted
7156 *) Fix assembler for Alpha (tested only on DEC OSF not Linux or *BSD).
7157 The problem was that one of the replacement routines had not been working
7158 since SSLeay releases. For now the offending routine has been replaced
7159 with non-optimised assembler. Even so, this now gives around 95%
7160 performance improvement for 1024 bit RSA signs.
7163 *) Hack to fix PKCS#7 decryption when used with some unorthodox RC2
7164 handling. Most clients have the effective key size in bits equal to
7165 the key length in bits: so a 40 bit RC2 key uses a 40 bit (5 byte) key.
7166 A few however don't do this and instead use the size of the decrypted key
7167 to determine the RC2 key length and the AlgorithmIdentifier to determine
7168 the effective key length. In this case the effective key length can still
7169 be 40 bits but the key length can be 168 bits for example. This is fixed
7170 by manually forcing an RC2 key into the EVP_PKEY structure because the
7171 EVP code can't currently handle unusual RC2 key sizes: it always assumes
7172 the key length and effective key length are equal.
7175 *) Add a bunch of functions that should simplify the creation of
7176 X509_NAME structures. Now you should be able to do:
7177 X509_NAME_add_entry_by_txt(nm, "CN", MBSTRING_ASC, "Steve", -1, -1, 0);
7178 and have it automatically work out the correct field type and fill in
7179 the structures. The more adventurous can try:
7180 X509_NAME_add_entry_by_txt(nm, field, MBSTRING_UTF8, str, -1, -1, 0);
7181 and it will (hopefully) work out the correct multibyte encoding.
7184 *) Change the 'req' utility to use the new field handling and multibyte
7185 copy routines. Before the DN field creation was handled in an ad hoc
7186 way in req, ca, and x509 which was rather broken and didn't support
7187 BMPStrings or UTF8Strings. Since some software doesn't implement
7188 BMPStrings or UTF8Strings yet, they can be enabled using the config file
7189 using the dirstring_type option. See the new comment in the default
7190 openssl.cnf for more info.
7193 *) Make crypto/rand/md_rand.c more robust:
7194 - Assure unique random numbers after fork().
7195 - Make sure that concurrent threads access the global counter and
7196 md serializably so that we never lose entropy in them
7197 or use exactly the same state in multiple threads.
7198 Access to the large state is not always serializable because
7199 the additional locking could be a performance killer, and
7200 md should be large enough anyway.
7203 *) New file apps/app_rand.c with commonly needed functionality
7204 for handling the random seed file.
7206 Use the random seed file in some applications that previously did not:
7208 dsaparam -genkey (which also ignored its '-rand' option),
7211 x509 (when signing).
7212 Except on systems with /dev/urandom, it is crucial to have a random
7213 seed file at least for key creation, DSA signing, and for DH exchanges;
7214 for RSA signatures we could do without one.
7216 gendh and gendsa (unlike genrsa) used to read only the first byte
7217 of each file listed in the '-rand' option. The function as previously
7218 found in genrsa is now in app_rand.c and is used by all programs
7219 that support '-rand'.
7222 *) In RAND_write_file, use mode 0600 for creating files;
7223 don't just chmod when it may be too late.
7226 *) Report an error from X509_STORE_load_locations
7227 when X509_LOOKUP_load_file or X509_LOOKUP_add_dir failed.
7230 *) New function ASN1_mbstring_copy() this copies a string in either
7231 ASCII, Unicode, Universal (4 bytes per character) or UTF8 format
7232 into an ASN1_STRING type. A mask of permissible types is passed
7233 and it chooses the "minimal" type to use or an error if not type
7237 *) Add function equivalents to the various macros in asn1.h. The old
7238 macros are retained with an M_ prefix. Code inside the library can
7239 use the M_ macros. External code (including the openssl utility)
7240 should *NOT* in order to be "shared library friendly".
7243 *) Add various functions that can check a certificate's extensions
7244 to see if it usable for various purposes such as SSL client,
7245 server or S/MIME and CAs of these types. This is currently
7246 VERY EXPERIMENTAL but will ultimately be used for certificate chain
7247 verification. Also added a -purpose flag to x509 utility to
7248 print out all the purposes.
7251 *) Add a CRYPTO_EX_DATA to X509 certificate structure and associated
7255 *) New X509V3_{X509,CRL,REVOKED}_get_d2i() functions. These will search
7256 for, obtain and decode and extension and obtain its critical flag.
7257 This allows all the necessary extension code to be handled in a
7258 single function call.
7261 *) RC4 tune-up featuring 30-40% performance improvement on most RISC
7262 platforms. See crypto/rc4/rc4_enc.c for further details.
7265 *) New -noout option to asn1parse. This causes no output to be produced
7266 its main use is when combined with -strparse and -out to extract data
7267 from a file (which may not be in ASN.1 format).
7270 *) Fix for pkcs12 program. It was hashing an invalid certificate pointer
7271 when producing the local key id.
7272 [Richard Levitte <levitte@stacken.kth.se>]
7274 *) New option -dhparam in s_server. This allows a DH parameter file to be
7275 stated explicitly. If it is not stated then it tries the first server
7276 certificate file. The previous behaviour hard coded the filename
7280 *) Add -pubin and -pubout options to the rsa and dsa commands. These allow
7281 a public key to be input or output. For example:
7282 openssl rsa -in key.pem -pubout -out pubkey.pem
7283 Also added necessary DSA public key functions to handle this.
7286 *) Fix so PKCS7_dataVerify() doesn't crash if no certificates are contained
7287 in the message. This was handled by allowing
7288 X509_find_by_issuer_and_serial() to tolerate a NULL passed to it.
7289 [Steve Henson, reported by Sampo Kellomaki <sampo@mail.neuronio.pt>]
7291 *) Fix for bug in d2i_ASN1_bytes(): other ASN1 functions add an extra null
7292 to the end of the strings whereas this didn't. This would cause problems
7293 if strings read with d2i_ASN1_bytes() were later modified.
7294 [Steve Henson, reported by Arne Ansper <arne@ats.cyber.ee>]
7296 *) Fix for base64 decode bug. When a base64 bio reads only one line of
7297 data and it contains EOF it will end up returning an error. This is
7298 caused by input 46 bytes long. The cause is due to the way base64
7299 BIOs find the start of base64 encoded data. They do this by trying a
7300 trial decode on each line until they find one that works. When they
7301 do a flag is set and it starts again knowing it can pass all the
7302 data directly through the decoder. Unfortunately it doesn't reset
7303 the context it uses. This means that if EOF is reached an attempt
7304 is made to pass two EOFs through the context and this causes the
7305 resulting error. This can also cause other problems as well. As is
7306 usual with these problems it takes *ages* to find and the fix is
7307 trivial: move one line.
7308 [Steve Henson, reported by ian@uns.ns.ac.yu (Ivan Nejgebauer) ]
7310 *) Ugly workaround to get s_client and s_server working under Windows. The
7311 old code wouldn't work because it needed to select() on sockets and the
7312 tty (for keypresses and to see if data could be written). Win32 only
7313 supports select() on sockets so we select() with a 1s timeout on the
7314 sockets and then see if any characters are waiting to be read, if none
7315 are present then we retry, we also assume we can always write data to
7316 the tty. This isn't nice because the code then blocks until we've
7317 received a complete line of data and it is effectively polling the
7318 keyboard at 1s intervals: however it's quite a bit better than not
7319 working at all :-) A dedicated Windows application might handle this
7320 with an event loop for example.
7323 *) Enhance RSA_METHOD structure. Now there are two extra methods, rsa_sign
7324 and rsa_verify. When the RSA_FLAGS_SIGN_VER option is set these functions
7325 will be called when RSA_sign() and RSA_verify() are used. This is useful
7326 if rsa_pub_dec() and rsa_priv_enc() equivalents are not available.
7327 For this to work properly RSA_public_decrypt() and RSA_private_encrypt()
7328 should *not* be used: RSA_sign() and RSA_verify() must be used instead.
7329 This necessitated the support of an extra signature type NID_md5_sha1
7330 for SSL signatures and modifications to the SSL library to use it instead
7331 of calling RSA_public_decrypt() and RSA_private_encrypt().
7334 *) Add new -verify -CAfile and -CApath options to the crl program, these
7335 will lookup a CRL issuers certificate and verify the signature in a
7336 similar way to the verify program. Tidy up the crl program so it
7337 no longer accesses structures directly. Make the ASN1 CRL parsing a bit
7338 less strict. It will now permit CRL extensions even if it is not
7339 a V2 CRL: this will allow it to tolerate some broken CRLs.
7342 *) Initialize all non-automatic variables each time one of the openssl
7343 sub-programs is started (this is necessary as they may be started
7344 multiple times from the "OpenSSL>" prompt).
7345 [Lennart Bang, Bodo Moeller]
7347 *) Preliminary compilation option RSA_NULL which disables RSA crypto without
7348 removing all other RSA functionality (this is what NO_RSA does). This
7349 is so (for example) those in the US can disable those operations covered
7350 by the RSA patent while allowing storage and parsing of RSA keys and RSA
7354 *) Non-copying interface to BIO pairs.
7355 (still largely untested)
7358 *) New function ANS1_tag2str() to convert an ASN1 tag to a descriptive
7359 ASCII string. This was handled independently in various places before.
7362 *) New functions UTF8_getc() and UTF8_putc() that parse and generate
7363 UTF8 strings a character at a time.
7366 *) Use client_version from client hello to select the protocol
7367 (s23_srvr.c) and for RSA client key exchange verification
7368 (s3_srvr.c), as required by the SSL 3.0/TLS 1.0 specifications.
7371 *) Add various utility functions to handle SPKACs, these were previously
7372 handled by poking round in the structure internals. Added new function
7373 NETSCAPE_SPKI_print() to print out SPKAC and a new utility 'spkac' to
7374 print, verify and generate SPKACs. Based on an original idea from
7375 Massimiliano Pala <madwolf@comune.modena.it> but extensively modified.
7378 *) RIPEMD160 is operational on all platforms and is back in 'make test'.
7381 *) Allow the config file extension section to be overwritten on the
7382 command line. Based on an original idea from Massimiliano Pala
7383 <madwolf@comune.modena.it>. The new option is called -extensions
7384 and can be applied to ca, req and x509. Also -reqexts to override
7385 the request extensions in req and -crlexts to override the crl extensions
7389 *) Add new feature to the SPKAC handling in ca. Now you can include
7390 the same field multiple times by preceding it by "XXXX." for example:
7393 this is the same syntax as used in the req config file.
7396 *) Allow certificate extensions to be added to certificate requests. These
7397 are specified in a 'req_extensions' option of the req section of the
7398 config file. They can be printed out with the -text option to req but
7399 are otherwise ignored at present.
7402 *) Fix a horrible bug in enc_read() in crypto/evp/bio_enc.c: if the first
7403 data read consists of only the final block it would not decrypted because
7404 EVP_CipherUpdate() would correctly report zero bytes had been decrypted.
7405 A misplaced 'break' also meant the decrypted final block might not be
7406 copied until the next read.
7409 *) Initial support for DH_METHOD. Again based on RSA_METHOD. Also added
7410 a few extra parameters to the DH structure: these will be useful if
7411 for example we want the value of 'q' or implement X9.42 DH.
7414 *) Initial support for DSA_METHOD. This is based on the RSA_METHOD and
7415 provides hooks that allow the default DSA functions or functions on a
7416 "per key" basis to be replaced. This allows hardware acceleration and
7417 hardware key storage to be handled without major modification to the
7418 library. Also added low level modexp hooks and CRYPTO_EX structure and
7419 associated functions.
7422 *) Add a new flag to memory BIOs, BIO_FLAG_MEM_RDONLY. This marks the BIO
7423 as "read only": it can't be written to and the buffer it points to will
7424 not be freed. Reading from a read only BIO is much more efficient than
7425 a normal memory BIO. This was added because there are several times when
7426 an area of memory needs to be read from a BIO. The previous method was
7427 to create a memory BIO and write the data to it, this results in two
7428 copies of the data and an O(n^2) reading algorithm. There is a new
7429 function BIO_new_mem_buf() which creates a read only memory BIO from
7430 an area of memory. Also modified the PKCS#7 routines to use read only
7434 *) Bugfix: ssl23_get_client_hello did not work properly when called in
7435 state SSL23_ST_SR_CLNT_HELLO_B, i.e. when the first 7 bytes of
7436 a SSLv2-compatible client hello for SSLv3 or TLSv1 could be read,
7437 but a retry condition occured while trying to read the rest.
7440 *) The PKCS7_ENC_CONTENT_new() function was setting the content type as
7441 NID_pkcs7_encrypted by default: this was wrong since this should almost
7442 always be NID_pkcs7_data. Also modified the PKCS7_set_type() to handle
7443 the encrypted data type: this is a more sensible place to put it and it
7444 allows the PKCS#12 code to be tidied up that duplicated this
7448 *) Changed obj_dat.pl script so it takes its input and output files on
7449 the command line. This should avoid shell escape redirection problems
7453 *) Initial support for certificate extension requests, these are included
7454 in things like Xenroll certificate requests. Included functions to allow
7455 extensions to be obtained and added.
7458 *) -crlf option to s_client and s_server for sending newlines as
7459 CRLF (as required by many protocols).
7462 Changes between 0.9.3a and 0.9.4 [09 Aug 1999]
7464 *) Install libRSAglue.a when OpenSSL is built with RSAref.
7465 [Ralf S. Engelschall]
7467 *) A few more ``#ifndef NO_FP_API / #endif'' pairs for consistency.
7468 [Andrija Antonijevic <TheAntony2@bigfoot.com>]
7470 *) Fix -startdate and -enddate (which was missing) arguments to 'ca'
7474 *) New function DSA_dup_DH, which duplicates DSA parameters/keys as
7475 DH parameters/keys (q is lost during that conversion, but the resulting
7476 DH parameters contain its length).
7478 For 1024-bit p, DSA_generate_parameters followed by DSA_dup_DH is
7479 much faster than DH_generate_parameters (which creates parameters
7480 where p = 2*q + 1), and also the smaller q makes DH computations
7481 much more efficient (160-bit exponentiation instead of 1024-bit
7482 exponentiation); so this provides a convenient way to support DHE
7483 ciphersuites in SSL/TLS servers (see ssl/ssltest.c). It is of
7484 utter importance to use
7485 SSL_CTX_set_options(s_ctx, SSL_OP_SINGLE_DH_USE);
7487 SSL_set_options(s_ctx, SSL_OP_SINGLE_DH_USE);
7488 when such DH parameters are used, because otherwise small subgroup
7489 attacks may become possible!
7492 *) Avoid memory leak in i2d_DHparams.
7495 *) Allow the -k option to be used more than once in the enc program:
7496 this allows the same encrypted message to be read by multiple recipients.
7499 *) New function OBJ_obj2txt(buf, buf_len, a, no_name), this converts
7500 an ASN1_OBJECT to a text string. If the "no_name" parameter is set then
7501 it will always use the numerical form of the OID, even if it has a short
7505 *) Added an extra RSA flag: RSA_FLAG_EXT_PKEY. Previously the rsa_mod_exp
7506 method only got called if p,q,dmp1,dmq1,iqmp components were present,
7507 otherwise bn_mod_exp was called. In the case of hardware keys for example
7508 no private key components need be present and it might store extra data
7509 in the RSA structure, which cannot be accessed from bn_mod_exp.
7510 By setting RSA_FLAG_EXT_PKEY rsa_mod_exp will always be called for
7511 private key operations.
7514 *) Added support for SPARC Linux.
7517 *) pem_password_cb function type incompatibly changed from
7518 typedef int pem_password_cb(char *buf, int size, int rwflag);
7520 ....(char *buf, int size, int rwflag, void *userdata);
7521 so that applications can pass data to their callbacks:
7522 The PEM[_ASN1]_{read,write}... functions and macros now take an
7523 additional void * argument, which is just handed through whenever
7524 the password callback is called.
7525 [Damien Miller <dmiller@ilogic.com.au>; tiny changes by Bodo Moeller]
7527 New function SSL_CTX_set_default_passwd_cb_userdata.
7529 Compatibility note: As many C implementations push function arguments
7530 onto the stack in reverse order, the new library version is likely to
7531 interoperate with programs that have been compiled with the old
7532 pem_password_cb definition (PEM_whatever takes some data that
7533 happens to be on the stack as its last argument, and the callback
7534 just ignores this garbage); but there is no guarantee whatsoever that
7537 *) The -DPLATFORM="\"$(PLATFORM)\"" definition and the similar -DCFLAGS=...
7538 (both in crypto/Makefile.ssl for use by crypto/cversion.c) caused
7539 problems not only on Windows, but also on some Unix platforms.
7540 To avoid problematic command lines, these definitions are now in an
7541 auto-generated file crypto/buildinf.h (created by crypto/Makefile.ssl
7542 for standard "make" builds, by util/mk1mf.pl for "mk1mf" builds).
7545 *) MIPS III/IV assembler module is reimplemented.
7548 *) More DES library cleanups: remove references to srand/rand and
7549 delete an unused file.
7552 *) Add support for the the free Netwide assembler (NASM) under Win32,
7553 since not many people have MASM (ml) and it can be hard to obtain.
7554 This is currently experimental but it seems to work OK and pass all
7555 the tests. Check out INSTALL.W32 for info.
7558 *) Fix memory leaks in s3_clnt.c: All non-anonymous SSL3/TLS1 connections
7559 without temporary keys kept an extra copy of the server key,
7560 and connections with temporary keys did not free everything in case
7564 *) New function RSA_check_key and new openssl rsa option -check
7565 for verifying the consistency of RSA keys.
7566 [Ulf Moeller, Bodo Moeller]
7568 *) Various changes to make Win32 compile work:
7569 1. Casts to avoid "loss of data" warnings in p5_crpt2.c
7570 2. Change unsigned int to int in b_dump.c to avoid "signed/unsigned
7571 comparison" warnings.
7572 3. Add sk_<TYPE>_sort to DEF file generator and do make update.
7575 *) Add a debugging option to PKCS#5 v2 key generation function: when
7576 you #define DEBUG_PKCS5V2 passwords, salts, iteration counts and
7577 derived keys are printed to stderr.
7580 *) Copy the flags in ASN1_STRING_dup().
7581 [Roman E. Pavlov <pre@mo.msk.ru>]
7583 *) The x509 application mishandled signing requests containing DSA
7584 keys when the signing key was also DSA and the parameters didn't match.
7586 It was supposed to omit the parameters when they matched the signing key:
7587 the verifying software was then supposed to automatically use the CA's
7588 parameters if they were absent from the end user certificate.
7590 Omitting parameters is no longer recommended. The test was also
7591 the wrong way round! This was probably due to unusual behaviour in
7592 EVP_cmp_parameters() which returns 1 if the parameters match.
7593 This meant that parameters were omitted when they *didn't* match and
7594 the certificate was useless. Certificates signed with 'ca' didn't have
7596 [Steve Henson, reported by Doug Erickson <Doug.Erickson@Part.NET>]
7598 *) Memory leak checking (-DCRYPTO_MDEBUG) had some problems.
7599 The interface is as follows:
7600 Applications can use
7601 CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_ON) aka MemCheck_start(),
7602 CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_OFF) aka MemCheck_stop();
7603 "off" is now the default.
7604 The library internally uses
7605 CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_DISABLE) aka MemCheck_off(),
7606 CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_ENABLE) aka MemCheck_on()
7607 to disable memory-checking temporarily.
7609 Some inconsistent states that previously were possible (and were
7610 even the default) are now avoided.
7612 -DCRYPTO_MDEBUG_TIME is new and additionally stores the current time
7613 with each memory chunk allocated; this is occasionally more helpful
7614 than just having a counter.
7616 -DCRYPTO_MDEBUG_THREAD is also new and adds the thread ID.
7618 -DCRYPTO_MDEBUG_ALL enables all of the above, plus any future
7622 *) Introduce "mode" for SSL structures (with defaults in SSL_CTX),
7623 which largely parallels "options", but is for changing API behaviour,
7624 whereas "options" are about protocol behaviour.
7625 Initial "mode" flags are:
7627 SSL_MODE_ENABLE_PARTIAL_WRITE Allow SSL_write to report success when
7628 a single record has been written.
7629 SSL_MODE_ACCEPT_MOVING_WRITE_BUFFER Don't insist that SSL_write
7630 retries use the same buffer location.
7631 (But all of the contents must be
7635 *) Bugfix: SSL_set_options ignored its parameter, only SSL_CTX_set_options
7638 *) Fix problems with no-hmac etc.
7639 [Ulf Möller, pointed out by Brian Wellington <bwelling@tislabs.com>]
7641 *) New functions RSA_get_default_method(), RSA_set_method() and
7642 RSA_get_method(). These allows replacement of RSA_METHODs without having
7643 to mess around with the internals of an RSA structure.
7646 *) Fix memory leaks in DSA_do_sign and DSA_is_prime.
7647 Also really enable memory leak checks in openssl.c and in some
7649 [Chad C. Mulligan, Bodo Moeller]
7651 *) Fix a bug in d2i_ASN1_INTEGER() and i2d_ASN1_INTEGER() which can mess
7652 up the length of negative integers. This has now been simplified to just
7653 store the length when it is first determined and use it later, rather
7654 than trying to keep track of where data is copied and updating it to
7656 [Steve Henson, reported by Brien Wheeler
7657 <bwheeler@authentica-security.com>]
7659 *) Add a new function PKCS7_signatureVerify. This allows the verification
7660 of a PKCS#7 signature but with the signing certificate passed to the
7661 function itself. This contrasts with PKCS7_dataVerify which assumes the
7662 certificate is present in the PKCS#7 structure. This isn't always the
7663 case: certificates can be omitted from a PKCS#7 structure and be
7664 distributed by "out of band" means (such as a certificate database).
7667 *) Complete the PEM_* macros with DECLARE_PEM versions to replace the
7668 function prototypes in pem.h, also change util/mkdef.pl to add the
7669 necessary function names.
7672 *) mk1mf.pl (used by Windows builds) did not properly read the
7673 options set by Configure in the top level Makefile, and Configure
7674 was not even able to write more than one option correctly.
7675 Fixed, now "no-idea no-rc5 -DCRYPTO_MDEBUG" etc. works as intended.
7678 *) New functions CONF_load_bio() and CONF_load_fp() to allow a config
7679 file to be loaded from a BIO or FILE pointer. The BIO version will
7680 for example allow memory BIOs to contain config info.
7683 *) New function "CRYPTO_num_locks" that returns CRYPTO_NUM_LOCKS.
7684 Whoever hopes to achieve shared-library compatibility across versions
7685 must use this, not the compile-time macro.
7686 (Exercise 0.9.4: Which is the minimum library version required by
7688 Note: All this applies only to multi-threaded programs, others don't
7692 *) Add missing case to s3_clnt.c state machine -- one of the new SSL tests
7693 through a BIO pair triggered the default case, i.e.
7694 SSLerr(...,SSL_R_UNKNOWN_STATE).
7697 *) New "BIO pair" concept (crypto/bio/bss_bio.c) so that applications
7698 can use the SSL library even if none of the specific BIOs is
7702 *) Fix a bug in i2d_DSAPublicKey() which meant it returned the wrong value
7703 for the encoded length.
7704 [Jeon KyoungHo <khjeon@sds.samsung.co.kr>]
7706 *) Add initial documentation of the X509V3 functions.
7709 *) Add a new pair of functions PEM_write_PKCS8PrivateKey() and
7710 PEM_write_bio_PKCS8PrivateKey() that are equivalent to
7711 PEM_write_PrivateKey() and PEM_write_bio_PrivateKey() but use the more
7712 secure PKCS#8 private key format with a high iteration count.
7715 *) Fix determination of Perl interpreter: A perl or perl5
7716 _directory_ in $PATH was also accepted as the interpreter.
7717 [Ralf S. Engelschall]
7719 *) Fix demos/sign/sign.c: well there wasn't anything strictly speaking
7720 wrong with it but it was very old and did things like calling
7721 PEM_ASN1_read() directly and used MD5 for the hash not to mention some
7725 *) Fix demos/selfsign.c: it used obsolete and deleted functions, changed
7726 to use the new extension code.
7729 *) Implement the PEM_read/PEM_write functions in crypto/pem/pem_all.c
7730 with macros. This should make it easier to change their form, add extra
7731 arguments etc. Fix a few PEM prototypes which didn't have cipher as a
7735 *) Add to configuration table a new entry that can specify an alternative
7736 name for unistd.h (for pre-POSIX systems); we need this for NeXTstep,
7737 according to Mark Crispin <MRC@Panda.COM>.
7741 *) DES CBC did not update the IV. Weird.
7744 des_cbc_encrypt does not update the IV, but des_ncbc_encrypt does.
7745 Changing the behaviour of the former might break existing programs --
7746 where IV updating is needed, des_ncbc_encrypt can be used.
7749 *) When bntest is run from "make test" it drives bc to check its
7750 calculations, as well as internally checking them. If an internal check
7751 fails, it needs to cause bc to give a non-zero result or make test carries
7752 on without noticing the failure. Fixed.
7755 *) DES library cleanups.
7758 *) Add support for PKCS#5 v2.0 PBE algorithms. This will permit PKCS#8 to be
7759 used with any cipher unlike PKCS#5 v1.5 which can at most handle 64 bit
7760 ciphers. NOTE: although the key derivation function has been verified
7761 against some published test vectors it has not been extensively tested
7762 yet. Added a -v2 "cipher" option to pkcs8 application to allow the use
7766 *) Instead of "mkdir -p", which is not fully portable, use new
7767 Perl script "util/mkdir-p.pl".
7770 *) Rewrite the way password based encryption (PBE) is handled. It used to
7771 assume that the ASN1 AlgorithmIdentifier parameter was a PBEParameter
7772 structure. This was true for the PKCS#5 v1.5 and PKCS#12 PBE algorithms
7773 but doesn't apply to PKCS#5 v2.0 where it can be something else. Now
7774 the 'parameter' field of the AlgorithmIdentifier is passed to the
7775 underlying key generation function so it must do its own ASN1 parsing.
7776 This has also changed the EVP_PBE_CipherInit() function which now has a
7777 'parameter' argument instead of literal salt and iteration count values
7778 and the function EVP_PBE_ALGOR_CipherInit() has been deleted.
7781 *) Support for PKCS#5 v1.5 compatible password based encryption algorithms
7782 and PKCS#8 functionality. New 'pkcs8' application linked to openssl.
7783 Needed to change the PEM_STRING_EVP_PKEY value which was just "PRIVATE
7784 KEY" because this clashed with PKCS#8 unencrypted string. Since this
7785 value was just used as a "magic string" and not used directly its
7786 value doesn't matter.
7789 *) Introduce some semblance of const correctness to BN. Shame C doesn't
7793 *) "linux-sparc64" configuration (ultrapenguin).
7794 [Ray Miller <ray.miller@oucs.ox.ac.uk>]
7795 "linux-sparc" configuration.
7796 [Christian Forster <fo@hawo.stw.uni-erlangen.de>]
7798 *) config now generates no-xxx options for missing ciphers.
7801 *) Support the EBCDIC character set (work in progress).
7802 File ebcdic.c not yet included because it has a different license.
7803 [Martin Kraemer <Martin.Kraemer@MchP.Siemens.De>]
7805 *) Support BS2000/OSD-POSIX.
7806 [Martin Kraemer <Martin.Kraemer@MchP.Siemens.De>]
7808 *) Make callbacks for key generation use void * instead of char *.
7811 *) Make S/MIME samples compile (not yet tested).
7814 *) Additional typesafe stacks.
7817 *) New configuration variants "bsdi-elf-gcc" (BSD/OS 4.x).
7821 Changes between 0.9.3 and 0.9.3a [29 May 1999]
7823 *) New configuration variant "sco5-gcc".
7825 *) Updated some demos.
7826 [Sean O Riordain, Wade Scholine]
7828 *) Add missing BIO_free at exit of pkcs12 application.
7831 *) Fix memory leak in conf.c.
7834 *) Updates for Win32 to assembler version of MD5.
7837 *) Set #! path to perl in apps/der_chop to where we found it
7838 instead of using a fixed path.
7841 *) SHA library changes for irix64-mips4-cc.
7844 *) Improvements for VMS support.
7848 Changes between 0.9.2b and 0.9.3 [24 May 1999]
7850 *) Bignum library bug fix. IRIX 6 passes "make test" now!
7851 This also avoids the problems with SC4.2 and unpatched SC5.
7852 [Andy Polyakov <appro@fy.chalmers.se>]
7854 *) New functions sk_num, sk_value and sk_set to replace the previous macros.
7855 These are required because of the typesafe stack would otherwise break
7856 existing code. If old code used a structure member which used to be STACK
7857 and is now STACK_OF (for example cert in a PKCS7_SIGNED structure) with
7858 sk_num or sk_value it would produce an error because the num, data members
7859 are not present in STACK_OF. Now it just produces a warning. sk_set
7860 replaces the old method of assigning a value to sk_value
7861 (e.g. sk_value(x, i) = y) which the library used in a few cases. Any code
7862 that does this will no longer work (and should use sk_set instead) but
7863 this could be regarded as a "questionable" behaviour anyway.
7866 *) Fix most of the other PKCS#7 bugs. The "experimental" code can now
7867 correctly handle encrypted S/MIME data.
7870 *) Change type of various DES function arguments from des_cblock
7871 (which means, in function argument declarations, pointer to char)
7872 to des_cblock * (meaning pointer to array with 8 char elements),
7873 which allows the compiler to do more typechecking; it was like
7874 that back in SSLeay, but with lots of ugly casts.
7876 Introduce new type const_des_cblock.
7879 *) Reorganise the PKCS#7 library and get rid of some of the more obvious
7880 problems: find RecipientInfo structure that matches recipient certificate
7881 and initialise the ASN1 structures properly based on passed cipher.
7884 *) Belatedly make the BN tests actually check the results.
7887 *) Fix the encoding and decoding of negative ASN1 INTEGERS and conversion
7888 to and from BNs: it was completely broken. New compilation option
7889 NEG_PUBKEY_BUG to allow for some broken certificates that encode public
7890 key elements as negative integers.
7893 *) Reorganize and speed up MD5.
7894 [Andy Polyakov <appro@fy.chalmers.se>]
7897 [Richard Levitte <richard@levitte.org>]
7899 *) New option -out to asn1parse to allow the parsed structure to be
7900 output to a file. This is most useful when combined with the -strparse
7901 option to examine the output of things like OCTET STRINGS.
7904 *) Make SSL library a little more fool-proof by not requiring any longer
7905 that SSL_set_{accept,connect}_state be called before
7906 SSL_{accept,connect} may be used (SSL_set_..._state is omitted
7907 in many applications because usually everything *appeared* to work as
7908 intended anyway -- now it really works as intended).
7911 *) Move openssl.cnf out of lib/.
7914 *) Fix various things to let OpenSSL even pass ``egcc -pipe -O2 -Wall
7915 -Wshadow -Wpointer-arith -Wcast-align -Wmissing-prototypes
7916 -Wmissing-declarations -Wnested-externs -Winline'' with EGCS 1.1.2+
7917 [Ralf S. Engelschall]
7919 *) Various fixes to the EVP and PKCS#7 code. It may now be able to
7920 handle PKCS#7 enveloped data properly.
7921 [Sebastian Akerman <sak@parallelconsulting.com>, modified by Steve]
7923 *) Create a duplicate of the SSL_CTX's CERT in SSL_new instead of
7924 copying pointers. The cert_st handling is changed by this in
7925 various ways (and thus what used to be known as ctx->default_cert
7926 is now called ctx->cert, since we don't resort to s->ctx->[default_]cert
7927 any longer when s->cert does not give us what we need).
7928 ssl_cert_instantiate becomes obsolete by this change.
7929 As soon as we've got the new code right (possibly it already is?),
7930 we have solved a couple of bugs of the earlier code where s->cert
7931 was used as if it could not have been shared with other SSL structures.
7933 Note that using the SSL API in certain dirty ways now will result
7934 in different behaviour than observed with earlier library versions:
7935 Changing settings for an SSL_CTX *ctx after having done s = SSL_new(ctx)
7936 does not influence s as it used to.
7938 In order to clean up things more thoroughly, inside SSL_SESSION
7939 we don't use CERT any longer, but a new structure SESS_CERT
7940 that holds per-session data (if available); currently, this is
7941 the peer's certificate chain and, for clients, the server's certificate
7942 and temporary key. CERT holds only those values that can have
7943 meaningful defaults in an SSL_CTX.
7946 *) New function X509V3_EXT_i2d() to create an X509_EXTENSION structure
7947 from the internal representation. Various PKCS#7 fixes: remove some
7948 evil casts and set the enc_dig_alg field properly based on the signing
7952 *) Allow PKCS#12 password to be set from the command line or the
7953 environment. Let 'ca' get its config file name from the environment
7954 variables "OPENSSL_CONF" or "SSLEAY_CONF" (for consistency with 'req'
7958 *) Allow certificate policies extension to use an IA5STRING for the
7959 organization field. This is contrary to the PKIX definition but
7960 VeriSign uses it and IE5 only recognises this form. Document 'x509'
7964 *) Add PEDANTIC compiler flag to allow compilation with gcc -pedantic,
7965 without disallowing inline assembler and the like for non-pedantic builds.
7968 *) Support Borland C++ builder.
7969 [Janez Jere <jj@void.si>, modified by Ulf Möller]
7974 *) SHA-1 cleanups and performance enhancements.
7975 [Andy Polyakov <appro@fy.chalmers.se>]
7977 *) Sparc v8plus assembler for the bignum library.
7978 [Andy Polyakov <appro@fy.chalmers.se>]
7980 *) Accept any -xxx and +xxx compiler options in Configure.
7983 *) Update HPUX configuration.
7986 *) Add missing sk_<type>_unshift() function to safestack.h
7987 [Ralf S. Engelschall]
7989 *) New function SSL_CTX_use_certificate_chain_file that sets the
7990 "extra_cert"s in addition to the certificate. (This makes sense
7991 only for "PEM" format files, as chains as a whole are not
7995 *) Support verify_depth from the SSL API.
7996 x509_vfy.c had what can be considered an off-by-one-error:
7997 Its depth (which was not part of the external interface)
7998 was actually counting the number of certificates in a chain;
7999 now it really counts the depth.
8002 *) Bugfix in crypto/x509/x509_cmp.c: The SSLerr macro was used
8003 instead of X509err, which often resulted in confusing error
8004 messages since the error codes are not globally unique
8005 (e.g. an alleged error in ssl3_accept when a certificate
8006 didn't match the private key).
8008 *) New function SSL_CTX_set_session_id_context that allows to set a default
8009 value (so that you don't need SSL_set_session_id_context for each
8010 connection using the SSL_CTX).
8013 *) OAEP decoding bug fix.
8016 *) Support INSTALL_PREFIX for package builders, as proposed by
8020 *) New Configure options "threads" and "no-threads". For systems
8021 where the proper compiler options are known (currently Solaris
8022 and Linux), "threads" is the default.
8025 *) New script util/mklink.pl as a faster substitute for util/mklink.sh.
8028 *) Install various scripts to $(OPENSSLDIR)/misc, not to
8029 $(INSTALLTOP)/bin -- they shouldn't clutter directories
8030 such as /usr/local/bin.
8033 *) "make linux-shared" to build shared libraries.
8034 [Niels Poppe <niels@netbox.org>]
8036 *) New Configure option no-<cipher> (rsa, idea, rc5, ...).
8039 *) Add the PKCS#12 API documentation to openssl.txt. Preliminary support for
8040 extension adding in x509 utility.
8043 *) Remove NOPROTO sections and error code comments.
8046 *) Partial rewrite of the DEF file generator to now parse the ANSI
8050 *) New Configure options --prefix=DIR and --openssldir=DIR.
8053 *) Complete rewrite of the error code script(s). It is all now handled
8054 by one script at the top level which handles error code gathering,
8055 header rewriting and C source file generation. It should be much better
8056 than the old method: it now uses a modified version of Ulf's parser to
8057 read the ANSI prototypes in all header files (thus the old K&R definitions
8058 aren't needed for error creation any more) and do a better job of
8059 translating function codes into names. The old 'ASN1 error code imbedded
8060 in a comment' is no longer necessary and it doesn't use .err files which
8061 have now been deleted. Also the error code call doesn't have to appear all
8062 on one line (which resulted in some large lines...).
8065 *) Change #include filenames from <foo.h> to <openssl/foo.h>.
8068 *) Change behaviour of ssl2_read when facing length-0 packets: Don't return
8069 0 (which usually indicates a closed connection), but continue reading.
8072 *) Fix some race conditions.
8075 *) Add support for CRL distribution points extension. Add Certificate
8076 Policies and CRL distribution points documentation.
8079 *) Move the autogenerated header file parts to crypto/opensslconf.h.
8082 *) Fix new 56-bit DES export ciphersuites: they were using 7 bytes instead of
8083 8 of keying material. Merlin has also confirmed interop with this fix
8084 between OpenSSL and Baltimore C/SSL 2.0 and J/SSL 2.0.
8085 [Merlin Hughes <merlin@baltimore.ie>]
8087 *) Fix lots of warnings.
8088 [Richard Levitte <levitte@stacken.kth.se>]
8090 *) In add_cert_dir() in crypto/x509/by_dir.c, break out of the loop if
8091 the directory spec didn't end with a LIST_SEPARATOR_CHAR.
8092 [Richard Levitte <levitte@stacken.kth.se>]
8094 *) Fix problems with sizeof(long) == 8.
8095 [Andy Polyakov <appro@fy.chalmers.se>]
8097 *) Change functions to ANSI C.
8100 *) Fix typos in error codes.
8101 [Martin Kraemer <Martin.Kraemer@MchP.Siemens.De>, Ulf Möller]
8103 *) Remove defunct assembler files from Configure.
8106 *) SPARC v8 assembler BIGNUM implementation.
8107 [Andy Polyakov <appro@fy.chalmers.se>]
8109 *) Support for Certificate Policies extension: both print and set.
8110 Various additions to support the r2i method this uses.
8113 *) A lot of constification, and fix a bug in X509_NAME_oneline() that could
8114 return a const string when you are expecting an allocated buffer.
8117 *) Add support for ASN1 types UTF8String and VISIBLESTRING, also the CHOICE
8118 types DirectoryString and DisplayText.
8121 *) Add code to allow r2i extensions to access the configuration database,
8122 add an LHASH database driver and add several ctx helper functions.
8125 *) Fix an evil bug in bn_expand2() which caused various BN functions to
8126 fail when they extended the size of a BIGNUM.
8129 *) Various utility functions to handle SXNet extension. Modify mkdef.pl to
8130 support typesafe stack.
8133 *) Fix typo in SSL_[gs]et_options().
8134 [Nils Frostberg <nils@medcom.se>]
8136 *) Delete various functions and files that belonged to the (now obsolete)
8137 old X509V3 handling code.
8140 *) New Configure option "rsaref".
8143 *) Don't auto-generate pem.h.
8146 *) Introduce type-safe ASN.1 SETs.
8149 *) Convert various additional casted stacks to type-safe STACK_OF() variants.
8150 [Ben Laurie, Ralf S. Engelschall, Steve Henson]
8152 *) Introduce type-safe STACKs. This will almost certainly break lots of code
8153 that links with OpenSSL (well at least cause lots of warnings), but fear
8154 not: the conversion is trivial, and it eliminates loads of evil casts. A
8155 few STACKed things have been converted already. Feel free to convert more.
8156 In the fullness of time, I'll do away with the STACK type altogether.
8159 *) Add `openssl ca -revoke <certfile>' facility which revokes a certificate
8160 specified in <certfile> by updating the entry in the index.txt file.
8161 This way one no longer has to edit the index.txt file manually for
8162 revoking a certificate. The -revoke option does the gory details now.
8163 [Massimiliano Pala <madwolf@openca.org>, Ralf S. Engelschall]
8165 *) Fix `openssl crl -noout -text' combination where `-noout' killed the
8166 `-text' option at all and this way the `-noout -text' combination was
8167 inconsistent in `openssl crl' with the friends in `openssl x509|rsa|dsa'.
8168 [Ralf S. Engelschall]
8170 *) Make sure a corresponding plain text error message exists for the
8171 X509_V_ERR_CERT_REVOKED/23 error number which can occur when a
8172 verify callback function determined that a certificate was revoked.
8173 [Ralf S. Engelschall]
8175 *) Bugfix: In test/testenc, don't test "openssl <cipher>" for
8176 ciphers that were excluded, e.g. by -DNO_IDEA. Also, test
8177 all available cipers including rc5, which was forgotten until now.
8178 In order to let the testing shell script know which algorithms
8179 are available, a new (up to now undocumented) command
8180 "openssl list-cipher-commands" is used.
8183 *) Bugfix: s_client occasionally would sleep in select() when
8184 it should have checked SSL_pending() first.
8187 *) New functions DSA_do_sign and DSA_do_verify to provide access to
8188 the raw DSA values prior to ASN.1 encoding.
8191 *) Tweaks to Configure
8192 [Niels Poppe <niels@netbox.org>]
8194 *) Add support for PKCS#5 v2.0 ASN1 PBES2 structures. No other support,
8198 *) New variables $(RANLIB) and $(PERL) in the Makefiles.
8201 *) New config option to avoid instructions that are illegal on the 80386.
8202 The default code is faster, but requires at least a 486.
8205 *) Got rid of old SSL2_CLIENT_VERSION (inconsistently used) and
8206 SSL2_SERVER_VERSION (not used at all) macros, which are now the
8207 same as SSL2_VERSION anyway.
8210 *) New "-showcerts" option for s_client.
8213 *) Still more PKCS#12 integration. Add pkcs12 application to openssl
8214 application. Various cleanups and fixes.
8217 *) More PKCS#12 integration. Add new pkcs12 directory with Makefile.ssl and
8218 modify error routines to work internally. Add error codes and PBE init
8219 to library startup routines.
8222 *) Further PKCS#12 integration. Added password based encryption, PKCS#8 and
8223 packing functions to asn1 and evp. Changed function names and error
8224 codes along the way.
8227 *) PKCS12 integration: and so it begins... First of several patches to
8228 slowly integrate PKCS#12 functionality into OpenSSL. Add PKCS#12
8229 objects to objects.h
8232 *) Add a new 'indent' option to some X509V3 extension code. Initial ASN1
8233 and display support for Thawte strong extranet extension.
8236 *) Add LinuxPPC support.
8237 [Jeff Dubrule <igor@pobox.org>]
8239 *) Get rid of redundant BN file bn_mulw.c, and rename bn_div64 to
8240 bn_div_words in alpha.s.
8241 [Hannes Reinecke <H.Reinecke@hw.ac.uk> and Ben Laurie]
8243 *) Make sure the RSA OAEP test is skipped under -DRSAref because
8244 OAEP isn't supported when OpenSSL is built with RSAref.
8245 [Ulf Moeller <ulf@fitug.de>]
8247 *) Move definitions of IS_SET/IS_SEQUENCE inside crypto/asn1/asn1.h
8248 so they no longer are missing under -DNOPROTO.
8249 [Soren S. Jorvang <soren@t.dk>]
8252 Changes between 0.9.1c and 0.9.2b [22 Mar 1999]
8254 *) Make SSL_get_peer_cert_chain() work in servers. Unfortunately, it still
8255 doesn't work when the session is reused. Coming soon!
8258 *) Fix a security hole, that allows sessions to be reused in the wrong
8259 context thus bypassing client cert protection! All software that uses
8260 client certs and session caches in multiple contexts NEEDS PATCHING to
8261 allow session reuse! A fuller solution is in the works.
8262 [Ben Laurie, problem pointed out by Holger Reif, Bodo Moeller (and ???)]
8264 *) Some more source tree cleanups (removed obsolete files
8265 crypto/bf/asm/bf586.pl, test/test.txt and crypto/sha/asm/f.s; changed
8266 permission on "config" script to be executable) and a fix for the INSTALL
8268 [Ulf Moeller <ulf@fitug.de>]
8270 *) Remove some legacy and erroneous uses of malloc, free instead of
8272 [Lennart Bang <lob@netstream.se>, with minor changes by Steve]
8274 *) Make rsa_oaep_test return non-zero on error.
8275 [Ulf Moeller <ulf@fitug.de>]
8277 *) Add support for native Solaris shared libraries. Configure
8278 solaris-sparc-sc4-pic, make, then run shlib/solaris-sc4.sh. It'd be nice
8279 if someone would make that last step automatic.
8280 [Matthias Loepfe <Matthias.Loepfe@AdNovum.CH>]
8282 *) ctx_size was not built with the right compiler during "make links". Fixed.
8285 *) Change the meaning of 'ALL' in the cipher list. It now means "everything
8286 except NULL ciphers". This means the default cipher list will no longer
8287 enable NULL ciphers. They need to be specifically enabled e.g. with
8288 the string "DEFAULT:eNULL".
8291 *) Fix to RSA private encryption routines: if p < q then it would
8292 occasionally produce an invalid result. This will only happen with
8293 externally generated keys because OpenSSL (and SSLeay) ensure p > q.
8296 *) Be less restrictive and allow also `perl util/perlpath.pl
8297 /path/to/bin/perl' in addition to `perl util/perlpath.pl /path/to/bin',
8298 because this way one can also use an interpreter named `perl5' (which is
8299 usually the name of Perl 5.xxx on platforms where an Perl 4.x is still
8300 installed as `perl').
8301 [Matthias Loepfe <Matthias.Loepfe@adnovum.ch>]
8303 *) Let util/clean-depend.pl work also with older Perl 5.00x versions.
8304 [Matthias Loepfe <Matthias.Loepfe@adnovum.ch>]
8306 *) Fix Makefile.org so CC,CFLAG etc are passed to 'make links' add
8307 advapi32.lib to Win32 build and change the pem test comparision
8308 to fc.exe (thanks to Ulrich Kroener <kroneru@yahoo.com> for the
8309 suggestion). Fix misplaced ASNI prototypes and declarations in evp.h
8310 and crypto/des/ede_cbcm_enc.c.
8313 *) DES quad checksum was broken on big-endian architectures. Fixed.
8316 *) Comment out two functions in bio.h that aren't implemented. Fix up the
8317 Win32 test batch file so it (might) work again. The Win32 test batch file
8318 is horrible: I feel ill....
8321 *) Move various #ifdefs around so NO_SYSLOG, NO_DIRENT etc are now selected
8322 in e_os.h. Audit of header files to check ANSI and non ANSI
8323 sections: 10 functions were absent from non ANSI section and not exported
8324 from Windows DLLs. Fixed up libeay.num for new functions.
8327 *) Make `openssl version' output lines consistent.
8328 [Ralf S. Engelschall]
8330 *) Fix Win32 symbol export lists for BIO functions: Added
8331 BIO_get_ex_new_index, BIO_get_ex_num, BIO_get_ex_data and BIO_set_ex_data
8332 to ms/libeay{16,32}.def.
8333 [Ralf S. Engelschall]
8335 *) Second round of fixing the OpenSSL perl/ stuff. It now at least compiled
8336 fine under Unix and passes some trivial tests I've now added. But the
8337 whole stuff is horribly incomplete, so a README.1ST with a disclaimer was
8338 added to make sure no one expects that this stuff really works in the
8339 OpenSSL 0.9.2 release. Additionally I've started to clean the XS sources
8340 up and fixed a few little bugs and inconsistencies in OpenSSL.{pm,xs} and
8342 [Ralf S. Engelschall]
8344 *) Fix the generation of two part addresses in perl.
8345 [Kenji Miyake <kenji@miyake.org>, integrated by Ben Laurie]
8347 *) Add config entry for Linux on MIPS.
8348 [John Tobey <jtobey@channel1.com>]
8350 *) Make links whenever Configure is run, unless we are on Windoze.
8353 *) Permit extensions to be added to CRLs using crl_section in openssl.cnf.
8354 Currently only issuerAltName and AuthorityKeyIdentifier make any sense
8358 *) Add a useful kludge to allow package maintainers to specify compiler and
8359 other platforms details on the command line without having to patch the
8360 Configure script everytime: One now can use ``perl Configure
8361 <id>:<details>'', i.e. platform ids are allowed to have details appended
8362 to them (seperated by colons). This is treated as there would be a static
8363 pre-configured entry in Configure's %table under key <id> with value
8364 <details> and ``perl Configure <id>'' is called. So, when you want to
8365 perform a quick test-compile under FreeBSD 3.1 with pgcc and without
8366 assembler stuff you can use ``perl Configure "FreeBSD-elf:pgcc:-O6:::"''
8367 now, which overrides the FreeBSD-elf entry on-the-fly.
8368 [Ralf S. Engelschall]
8370 *) Disable new TLS1 ciphersuites by default: they aren't official yet.
8373 *) Allow DSO flags like -fpic, -fPIC, -KPIC etc. to be specified
8374 on the `perl Configure ...' command line. This way one can compile
8375 OpenSSL libraries with Position Independent Code (PIC) which is needed
8376 for linking it into DSOs.
8377 [Ralf S. Engelschall]
8379 *) Remarkably, export ciphers were totally broken and no-one had noticed!
8383 *) Cleaned up the LICENSE document: The official contact for any license
8384 questions now is the OpenSSL core team under openssl-core@openssl.org.
8385 And add a paragraph about the dual-license situation to make sure people
8386 recognize that _BOTH_ the OpenSSL license _AND_ the SSLeay license apply
8387 to the OpenSSL toolkit.
8388 [Ralf S. Engelschall]
8390 *) General source tree makefile cleanups: Made `making xxx in yyy...'
8391 display consistent in the source tree and replaced `/bin/rm' by `rm'.
8392 Additonally cleaned up the `make links' target: Remove unnecessary
8393 semicolons, subsequent redundant removes, inline point.sh into mklink.sh
8394 to speed processing and no longer clutter the display with confusing
8395 stuff. Instead only the actually done links are displayed.
8396 [Ralf S. Engelschall]
8398 *) Permit null encryption ciphersuites, used for authentication only. It used
8399 to be necessary to set the preprocessor define SSL_ALLOW_ENULL to do this.
8400 It is now necessary to set SSL_FORBID_ENULL to prevent the use of null
8404 *) Add a bunch of fixes to the PKCS#7 stuff. It used to sometimes reorder
8405 signed attributes when verifying signatures (this would break them),
8406 the detached data encoding was wrong and public keys obtained using
8407 X509_get_pubkey() weren't freed.
8410 *) Add text documentation for the BUFFER functions. Also added a work around
8411 to a Win95 console bug. This was triggered by the password read stuff: the
8412 last character typed gets carried over to the next fread(). If you were
8413 generating a new cert request using 'req' for example then the last
8414 character of the passphrase would be CR which would then enter the first
8418 *) Added the new `Includes OpenSSL Cryptography Software' button as
8419 doc/openssl_button.{gif,html} which is similar in style to the old SSLeay
8420 button and can be used by applications based on OpenSSL to show the
8421 relationship to the OpenSSL project.
8422 [Ralf S. Engelschall]
8424 *) Remove confusing variables in function signatures in files
8425 ssl/ssl_lib.c and ssl/ssl.h.
8426 [Lennart Bong <lob@kulthea.stacken.kth.se>]
8428 *) Don't install bss_file.c under PREFIX/include/
8429 [Lennart Bong <lob@kulthea.stacken.kth.se>]
8431 *) Get the Win32 compile working again. Modify mkdef.pl so it can handle
8432 functions that return function pointers and has support for NT specific
8433 stuff. Fix mk1mf.pl and VC-32.pl to support NT differences also. Various
8434 #ifdef WIN32 and WINNTs sprinkled about the place and some changes from
8435 unsigned to signed types: this was killing the Win32 compile.
8438 *) Add new certificate file to stack functions,
8439 SSL_add_dir_cert_subjects_to_stack() and
8440 SSL_add_file_cert_subjects_to_stack(). These largely supplant
8441 SSL_load_client_CA_file(), and can be used to add multiple certs easily
8442 to a stack (usually this is then handed to SSL_CTX_set_client_CA_list()).
8443 This means that Apache-SSL and similar packages don't have to mess around
8444 to add as many CAs as they want to the preferred list.
8447 *) Experiment with doxygen documentation. Currently only partially applied to
8449 See http://www.stack.nl/~dimitri/doxygen/index.html, and run doxygen with
8450 openssl.doxy as the configuration file.
8453 *) Get rid of remaining C++-style comments which strict C compilers hate.
8454 [Ralf S. Engelschall, pointed out by Carlos Amengual]
8456 *) Changed BN_RECURSION in bn_mont.c to BN_RECURSION_MONT so it is not
8457 compiled in by default: it has problems with large keys.
8460 *) Add a bunch of SSL_xxx() functions for configuring the temporary RSA and
8461 DH private keys and/or callback functions which directly correspond to
8462 their SSL_CTX_xxx() counterparts but work on a per-connection basis. This
8463 is needed for applications which have to configure certificates on a
8464 per-connection basis (e.g. Apache+mod_ssl) instead of a per-context basis
8466 For the RSA certificate situation is makes no difference, but
8467 for the DSA certificate situation this fixes the "no shared cipher"
8468 problem where the OpenSSL cipher selection procedure failed because the
8469 temporary keys were not overtaken from the context and the API provided
8470 no way to reconfigure them.
8471 The new functions now let applications reconfigure the stuff and they
8472 are in detail: SSL_need_tmp_RSA, SSL_set_tmp_rsa, SSL_set_tmp_dh,
8473 SSL_set_tmp_rsa_callback and SSL_set_tmp_dh_callback. Additionally a new
8474 non-public-API function ssl_cert_instantiate() is used as a helper
8475 function and also to reduce code redundancy inside ssl_rsa.c.
8476 [Ralf S. Engelschall]
8478 *) Move s_server -dcert and -dkey options out of the undocumented feature
8479 area because they are useful for the DSA situation and should be
8480 recognized by the users.
8481 [Ralf S. Engelschall]
8483 *) Fix the cipher decision scheme for export ciphers: the export bits are
8484 *not* within SSL_MKEY_MASK or SSL_AUTH_MASK, they are within
8485 SSL_EXP_MASK. So, the original variable has to be used instead of the
8486 already masked variable.
8487 [Richard Levitte <levitte@stacken.kth.se>]
8489 *) Fix 'port' variable from `int' to `unsigned int' in crypto/bio/b_sock.c
8490 [Richard Levitte <levitte@stacken.kth.se>]
8492 *) Change type of another md_len variable in pk7_doit.c:PKCS7_dataFinal()
8493 from `int' to `unsigned int' because it's a length and initialized by
8494 EVP_DigestFinal() which expects an `unsigned int *'.
8495 [Richard Levitte <levitte@stacken.kth.se>]
8497 *) Don't hard-code path to Perl interpreter on shebang line of Configure
8498 script. Instead use the usual Shell->Perl transition trick.
8499 [Ralf S. Engelschall]
8501 *) Make `openssl x509 -noout -modulus' functional also for DSA certificates
8502 (in addition to RSA certificates) to match the behaviour of `openssl dsa
8503 -noout -modulus' as it's already the case for `openssl rsa -noout
8504 -modulus'. For RSA the -modulus is the real "modulus" while for DSA
8505 currently the public key is printed (a decision which was already done by
8506 `openssl dsa -modulus' in the past) which serves a similar purpose.
8507 Additionally the NO_RSA no longer completely removes the whole -modulus
8508 option; it now only avoids using the RSA stuff. Same applies to NO_DSA
8510 [Ralf S. Engelschall]
8512 *) Add Arne Ansper's reliable BIO - this is an encrypted, block-digested
8513 BIO. See the source (crypto/evp/bio_ok.c) for more info.
8514 [Arne Ansper <arne@ats.cyber.ee>]
8516 *) Dump the old yucky req code that tried (and failed) to allow raw OIDs
8517 to be added. Now both 'req' and 'ca' can use new objects defined in the
8521 *) Add cool BIO that does syslog (or event log on NT).
8522 [Arne Ansper <arne@ats.cyber.ee>, integrated by Ben Laurie]
8524 *) Add support for new TLS ciphersuites, TLS_RSA_EXPORT56_WITH_RC4_56_MD5,
8525 TLS_RSA_EXPORT56_WITH_RC2_CBC_56_MD5 and
8526 TLS_RSA_EXPORT56_WITH_DES_CBC_SHA, as specified in "56-bit Export Cipher
8527 Suites For TLS", draft-ietf-tls-56-bit-ciphersuites-00.txt.
8530 *) Add preliminary config info for new extension code.
8533 *) Make RSA_NO_PADDING really use no padding.
8534 [Ulf Moeller <ulf@fitug.de>]
8536 *) Generate errors when private/public key check is done.
8539 *) Overhaul for 'crl' utility. New function X509_CRL_print. Partial support
8540 for some CRL extensions and new objects added.
8543 *) Really fix the ASN1 IMPLICIT bug this time... Partial support for private
8544 key usage extension and fuller support for authority key id.
8547 *) Add OAEP encryption for the OpenSSL crypto library. OAEP is the improved
8548 padding method for RSA, which is recommended for new applications in PKCS
8549 #1 v2.0 (RFC 2437, October 1998).
8550 OAEP (Optimal Asymmetric Encryption Padding) has better theoretical
8551 foundations than the ad-hoc padding used in PKCS #1 v1.5. It is secure
8552 against Bleichbacher's attack on RSA.
8553 [Ulf Moeller <ulf@fitug.de>, reformatted, corrected and integrated by
8556 *) Updates to the new SSL compression code
8557 [Eric A. Young, (from changes to C2Net SSLeay, integrated by Mark Cox)]
8559 *) Fix so that the version number in the master secret, when passed
8560 via RSA, checks that if TLS was proposed, but we roll back to SSLv3
8561 (because the server will not accept higher), that the version number
8562 is 0x03,0x01, not 0x03,0x00
8563 [Eric A. Young, (from changes to C2Net SSLeay, integrated by Mark Cox)]
8565 *) Run extensive memory leak checks on SSL apps. Fixed *lots* of memory
8566 leaks in ssl/ relating to new X509_get_pubkey() behaviour. Also fixes
8567 in apps/ and an unrelated leak in crypto/dsa/dsa_vrf.c
8570 *) Support for RAW extensions where an arbitrary extension can be
8571 created by including its DER encoding. See apps/openssl.cnf for
8575 *) Make sure latest Perl versions don't interpret some generated C array
8576 code as Perl array code in the crypto/err/err_genc.pl script.
8577 [Lars Weber <3weber@informatik.uni-hamburg.de>]
8579 *) Modify ms/do_ms.bat to not generate assembly language makefiles since
8580 not many people have the assembler. Various Win32 compilation fixes and
8581 update to the INSTALL.W32 file with (hopefully) more accurate Win32
8585 *) Modify configure script 'Configure' to automatically create crypto/date.h
8586 file under Win32 and also build pem.h from pem.org. New script
8587 util/mkfiles.pl to create the MINFO file on environments that can't do a
8588 'make files': perl util/mkfiles.pl >MINFO should work.
8591 *) Major rework of DES function declarations, in the pursuit of correctness
8592 and purity. As a result, many evil casts evaporated, and some weirdness,
8593 too. You may find this causes warnings in your code. Zapping your evil
8594 casts will probably fix them. Mostly.
8597 *) Fix for a typo in asn1.h. Bug fix to object creation script
8598 obj_dat.pl. It considered a zero in an object definition to mean
8599 "end of object": none of the objects in objects.h have any zeros
8600 so it wasn't spotted.
8601 [Steve Henson, reported by Erwann ABALEA <eabalea@certplus.com>]
8603 *) Add support for Triple DES Cipher Block Chaining with Output Feedback
8604 Masking (CBCM). In the absence of test vectors, the best I have been able
8605 to do is check that the decrypt undoes the encrypt, so far. Send me test
8606 vectors if you have them.
8609 *) Correct calculation of key length for export ciphers (too much space was
8610 allocated for null ciphers). This has not been tested!
8613 *) Modifications to the mkdef.pl for Win32 DEF file creation. The usage
8614 message is now correct (it understands "crypto" and "ssl" on its
8615 command line). There is also now an "update" option. This will update
8616 the util/ssleay.num and util/libeay.num files with any new functions.
8618 perl util/mkdef.pl crypto ssl update
8619 it will update them.
8622 *) Overhauled the Perl interface (perl/*):
8623 - ported BN stuff to OpenSSL's different BN library
8624 - made the perl/ source tree CVS-aware
8625 - renamed the package from SSLeay to OpenSSL (the files still contain
8626 their history because I've copied them in the repository)
8627 - removed obsolete files (the test scripts will be replaced
8628 by better Test::Harness variants in the future)
8629 [Ralf S. Engelschall]
8631 *) First cut for a very conservative source tree cleanup:
8632 1. merge various obsolete readme texts into doc/ssleay.txt
8633 where we collect the old documents and readme texts.
8634 2. remove the first part of files where I'm already sure that we no
8635 longer need them because of three reasons: either they are just temporary
8636 files which were left by Eric or they are preserved original files where
8637 I've verified that the diff is also available in the CVS via "cvs diff
8638 -rSSLeay_0_8_1b" or they were renamed (as it was definitely the case for
8639 the crypto/md/ stuff).
8640 [Ralf S. Engelschall]
8642 *) More extension code. Incomplete support for subject and issuer alt
8643 name, issuer and authority key id. Change the i2v function parameters
8644 and add an extra 'crl' parameter in the X509V3_CTX structure: guess
8645 what that's for :-) Fix to ASN1 macro which messed up
8646 IMPLICIT tag and add f_enum.c which adds a2i, i2a for ENUMERATED.
8649 *) Preliminary support for ENUMERATED type. This is largely copied from the
8653 *) Add new function, EVP_MD_CTX_copy() to replace frequent use of memcpy.
8654 [Eric A. Young, (from changes to C2Net SSLeay, integrated by Mark Cox)]
8656 *) Make sure `make rehash' target really finds the `openssl' program.
8657 [Ralf S. Engelschall, Matthias Loepfe <Matthias.Loepfe@adnovum.ch>]
8659 *) Squeeze another 7% of speed out of MD5 assembler, at least on a P2. I'd
8660 like to hear about it if this slows down other processors.
8663 *) Add CygWin32 platform information to Configure script.
8664 [Alan Batie <batie@aahz.jf.intel.com>]
8666 *) Fixed ms/32all.bat script: `no_asm' -> `no-asm'
8667 [Rainer W. Gerling <gerling@mpg-gv.mpg.de>]
8669 *) New program nseq to manipulate netscape certificate sequences
8672 *) Modify crl2pkcs7 so it supports multiple -certfile arguments. Fix a
8676 *) Fixes to BN code. Previously the default was to define BN_RECURSION
8677 but the BN code had some problems that would cause failures when
8678 doing certificate verification and some other functions.
8679 [Eric A. Young, (from changes to C2Net SSLeay, integrated by Mark Cox)]
8681 *) Add ASN1 and PEM code to support netscape certificate sequences.
8684 *) Add ASN1 and PEM code to support netscape certificate sequences.
8687 *) Add several PKIX and private extended key usage OIDs.
8690 *) Modify the 'ca' program to handle the new extension code. Modify
8691 openssl.cnf for new extension format, add comments.
8694 *) More X509 V3 changes. Fix typo in v3_bitstr.c. Add support to 'req'
8695 and add a sample to openssl.cnf so req -x509 now adds appropriate
8699 *) Continued X509 V3 changes. Add to other makefiles, integrate with the
8700 error code, add initial support to X509_print() and x509 application.
8703 *) Takes a deep breath and start addding X509 V3 extension support code. Add
8704 files in crypto/x509v3. Move original stuff to crypto/x509v3/old. All this
8705 stuff is currently isolated and isn't even compiled yet.
8708 *) Continuing patches for GeneralizedTime. Fix up certificate and CRL
8709 ASN1 to use ASN1_TIME and modify print routines to use ASN1_TIME_print.
8710 Removed the versions check from X509 routines when loading extensions:
8711 this allows certain broken certificates that don't set the version
8712 properly to be processed.
8715 *) Deal with irritating shit to do with dependencies, in YAAHW (Yet Another
8716 Ad Hoc Way) - Makefile.ssls now all contain local dependencies, which
8717 can still be regenerated with "make depend".
8720 *) Spelling mistake in C version of CAST-128.
8721 [Ben Laurie, reported by Jeremy Hylton <jeremy@cnri.reston.va.us>]
8723 *) Changes to the error generation code. The perl script err-code.pl
8724 now reads in the old error codes and retains the old numbers, only
8725 adding new ones if necessary. It also only changes the .err files if new
8726 codes are added. The makefiles have been modified to only insert errors
8727 when needed (to avoid needlessly modifying header files). This is done
8728 by only inserting errors if the .err file is newer than the auto generated
8729 C file. To rebuild all the error codes from scratch (the old behaviour)
8730 either modify crypto/Makefile.ssl to pass the -regen flag to err_code.pl
8731 or delete all the .err files.
8734 *) CAST-128 was incorrectly implemented for short keys. The C version has
8735 been fixed, but is untested. The assembler versions are also fixed, but
8736 new assembler HAS NOT BEEN GENERATED FOR WIN32 - the Makefile needs fixing
8737 to regenerate it if needed.
8738 [Ben Laurie, reported (with fix for C version) by Jun-ichiro itojun
8739 Hagino <itojun@kame.net>]
8741 *) File was opened incorrectly in randfile.c.
8742 [Ulf Möller <ulf@fitug.de>]
8744 *) Beginning of support for GeneralizedTime. d2i, i2d, check and print
8745 functions. Also ASN1_TIME suite which is a CHOICE of UTCTime or
8746 GeneralizedTime. ASN1_TIME is the proper type used in certificates et
8747 al: it's just almost always a UTCTime. Note this patch adds new error
8748 codes so do a "make errors" if there are problems.
8751 *) Correct Linux 1 recognition in config.
8752 [Ulf Möller <ulf@fitug.de>]
8754 *) Remove pointless MD5 hash when using DSA keys in ca.
8755 [Anonymous <nobody@replay.com>]
8757 *) Generate an error if given an empty string as a cert directory. Also
8758 generate an error if handed NULL (previously returned 0 to indicate an
8759 error, but didn't set one).
8760 [Ben Laurie, reported by Anonymous <nobody@replay.com>]
8762 *) Add prototypes to SSL methods. Make SSL_write's buffer const, at last.
8765 *) Fix the dummy function BN_ref_mod_exp() in rsaref.c to have the correct
8766 parameters. This was causing a warning which killed off the Win32 compile.
8769 *) Remove C++ style comments from crypto/bn/bn_local.h.
8770 [Neil Costigan <neil.costigan@celocom.com>]
8772 *) The function OBJ_txt2nid was broken. It was supposed to return a nid
8773 based on a text string, looking up short and long names and finally
8774 "dot" format. The "dot" format stuff didn't work. Added new function
8775 OBJ_txt2obj to do the same but return an ASN1_OBJECT and rewrote
8776 OBJ_txt2nid to use it. OBJ_txt2obj can also return objects even if the
8777 OID is not part of the table.
8780 *) Add prototypes to X509 lookup/verify methods, fixing a bug in
8781 X509_LOOKUP_by_alias().
8784 *) Sort openssl functions by name.
8787 *) Get the gendsa program working (hopefully) and add it to app list. Remove
8788 encryption from sample DSA keys (in case anyone is interested the password
8792 *) Make _all_ *_free functions accept a NULL pointer.
8793 [Frans Heymans <fheymans@isaserver.be>]
8795 *) If a DH key is generated in s3_srvr.c, don't blow it by trying to use
8797 [Anonymous <nobody@replay.com>]
8799 *) s_server should send the CAfile as acceptable CAs, not its own cert.
8800 [Bodo Moeller <3moeller@informatik.uni-hamburg.de>]
8802 *) Don't blow it for numeric -newkey arguments to apps/req.
8803 [Bodo Moeller <3moeller@informatik.uni-hamburg.de>]
8805 *) Temp key "for export" tests were wrong in s3_srvr.c.
8806 [Anonymous <nobody@replay.com>]
8808 *) Add prototype for temp key callback functions
8809 SSL_CTX_set_tmp_{rsa,dh}_callback().
8812 *) Make DH_free() tolerate being passed a NULL pointer (like RSA_free() and
8813 DSA_free()). Make X509_PUBKEY_set() check for errors in d2i_PublicKey().
8816 *) X509_name_add_entry() freed the wrong thing after an error.
8817 [Arne Ansper <arne@ats.cyber.ee>]
8819 *) rsa_eay.c would attempt to free a NULL context.
8820 [Arne Ansper <arne@ats.cyber.ee>]
8822 *) BIO_s_socket() had a broken should_retry() on Windoze.
8823 [Arne Ansper <arne@ats.cyber.ee>]
8825 *) BIO_f_buffer() didn't pass on BIO_CTRL_FLUSH.
8826 [Arne Ansper <arne@ats.cyber.ee>]
8828 *) Make sure the already existing X509_STORE->depth variable is initialized
8829 in X509_STORE_new(), but document the fact that this variable is still
8830 unused in the certificate verification process.
8831 [Ralf S. Engelschall]
8833 *) Fix the various library and apps files to free up pkeys obtained from
8834 X509_PUBKEY_get() et al. Also allow x509.c to handle netscape extensions.
8837 *) Fix reference counting in X509_PUBKEY_get(). This makes
8838 demos/maurice/example2.c work, amongst others, probably.
8839 [Steve Henson and Ben Laurie]
8841 *) First cut of a cleanup for apps/. First the `ssleay' program is now named
8842 `openssl' and second, the shortcut symlinks for the `openssl <command>'
8843 are no longer created. This way we have a single and consistent command
8844 line interface `openssl <command>', similar to `cvs <command>'.
8845 [Ralf S. Engelschall, Paul Sutton and Ben Laurie]
8847 *) ca.c: move test for DSA keys inside #ifndef NO_DSA. Make pubkey
8848 BIT STRING wrapper always have zero unused bits.
8851 *) Add CA.pl, perl version of CA.sh, add extended key usage OID.
8854 *) Make the top-level INSTALL documentation easier to understand.
8857 *) Makefiles updated to exit if an error occurs in a sub-directory
8858 make (including if user presses ^C) [Paul Sutton]
8860 *) Make Montgomery context stuff explicit in RSA data structure.
8863 *) Fix build order of pem and err to allow for generated pem.h.
8866 *) Fix renumbering bug in X509_NAME_delete_entry().
8869 *) Enhanced the err-ins.pl script so it makes the error library number
8870 global and can add a library name. This is needed for external ASN1 and
8871 other error libraries.
8874 *) Fixed sk_insert which never worked properly.
8877 *) Fix ASN1 macros so they can handle indefinite length construted
8878 EXPLICIT tags. Some non standard certificates use these: they can now
8882 *) Merged the various old/obsolete SSLeay documentation files (doc/xxx.doc)
8883 into a single doc/ssleay.txt bundle. This way the information is still
8884 preserved but no longer messes up this directory. Now it's new room for
8885 the new set of documenation files.
8886 [Ralf S. Engelschall]
8888 *) SETs were incorrectly DER encoded. This was a major pain, because they
8889 shared code with SEQUENCEs, which aren't coded the same. This means that
8890 almost everything to do with SETs or SEQUENCEs has either changed name or
8891 number of arguments.
8892 [Ben Laurie, based on a partial fix by GP Jayan <gp@nsj.co.jp>]
8894 *) Fix test data to work with the above.
8897 *) Fix the RSA header declarations that hid a bug I fixed in 0.9.0b but
8898 was already fixed by Eric for 0.9.1 it seems.
8899 [Ben Laurie - pointed out by Ulf Möller <ulf@fitug.de>]
8901 *) Autodetect FreeBSD3.
8904 *) Fix various bugs in Configure. This affects the following platforms:
8908 unixware-2.0-pentium
8912 *) Eliminate generated files from CVS. Reorder tests to regenerate files
8913 before they are needed.
8916 *) Generate Makefile.ssl from Makefile.org (to keep CVS happy).
8920 Changes between 0.9.1b and 0.9.1c [23-Dec-1998]
8922 *) Added OPENSSL_VERSION_NUMBER to crypto/crypto.h and
8923 changed SSLeay to OpenSSL in version strings.
8924 [Ralf S. Engelschall]
8926 *) Some fixups to the top-level documents.
8929 *) Fixed the nasty bug where rsaref.h was not found under compile-time
8930 because the symlink to include/ was missing.
8931 [Ralf S. Engelschall]
8933 *) Incorporated the popular no-RSA/DSA-only patches
8934 which allow to compile a RSA-free SSLeay.
8935 [Andrew Cooke / Interrader Ldt., Ralf S. Engelschall]
8937 *) Fixed nasty rehash problem under `make -f Makefile.ssl links'
8938 when "ssleay" is still not found.
8939 [Ralf S. Engelschall]
8941 *) Added more platforms to Configure: Cray T3E, HPUX 11,
8942 [Ralf S. Engelschall, Beckmann <beckman@acl.lanl.gov>]
8944 *) Updated the README file.
8945 [Ralf S. Engelschall]
8947 *) Added various .cvsignore files in the CVS repository subdirs
8948 to make a "cvs update" really silent.
8949 [Ralf S. Engelschall]
8951 *) Recompiled the error-definition header files and added
8952 missing symbols to the Win32 linker tables.
8953 [Ralf S. Engelschall]
8955 *) Cleaned up the top-level documents;
8956 o new files: CHANGES and LICENSE
8957 o merged VERSION, HISTORY* and README* files a CHANGES.SSLeay
8958 o merged COPYRIGHT into LICENSE
8959 o removed obsolete TODO file
8960 o renamed MICROSOFT to INSTALL.W32
8961 [Ralf S. Engelschall]
8963 *) Removed dummy files from the 0.9.1b source tree:
8964 crypto/asn1/x crypto/bio/cd crypto/bio/fg crypto/bio/grep crypto/bio/vi
8965 crypto/bn/asm/......add.c crypto/bn/asm/a.out crypto/dsa/f crypto/md5/f
8966 crypto/pem/gmon.out crypto/perlasm/f crypto/pkcs7/build crypto/rsa/f
8967 crypto/sha/asm/f crypto/threads/f ms/zzz ssl/f ssl/f.mak test/f
8968 util/f.mak util/pl/f util/pl/f.mak crypto/bf/bf_locl.old apps/f
8969 [Ralf S. Engelschall]
8971 *) Added various platform portability fixes.
8974 *) The Genesis of the OpenSSL rpject:
8975 We start with the latest (unreleased) SSLeay version 0.9.1b which Eric A.
8976 Young and Tim J. Hudson created while they were working for C2Net until
8978 [The OpenSSL Project]
8981 Changes between 0.9.0b and 0.9.1b [not released]
8983 *) Updated a few CA certificates under certs/
8986 *) Changed some BIGNUM api stuff.
8989 *) Various platform ports: OpenBSD, Ultrix, IRIX 64bit, NetBSD,
8990 DGUX x86, Linux Alpha, etc.
8993 *) New COMP library [crypto/comp/] for SSL Record Layer Compression:
8994 RLE (dummy implemented) and ZLIB (really implemented when ZLIB is
8998 *) Add -strparse option to asn1pars program which parses nested
9000 [Dr Stephen Henson <shenson@bigfoot.com>]
9002 *) Added "oid_file" to ssleay.cnf for "ca" and "req" programs.
9005 *) DSA fix for "ca" program.
9008 *) Added "-genkey" option to "dsaparam" program.
9011 *) Added RIPE MD160 (rmd160) message digest.
9014 *) Added -a (all) option to "ssleay version" command.
9017 *) Added PLATFORM define which is the id given to Configure.
9020 *) Added MemCheck_XXXX functions to crypto/mem.c for memory checking.
9023 *) Extended the ASN.1 parser routines.
9026 *) Extended BIO routines to support REUSEADDR, seek, tell, etc.
9029 *) Added a BN_CTX to the BN library.
9032 *) Fixed the weak key values in DES library
9035 *) Changed API in EVP library for cipher aliases.
9038 *) Added support for RC2/64bit cipher.
9041 *) Converted the lhash library to the crypto/mem.c functions.
9044 *) Added more recognized ASN.1 object ids.
9047 *) Added more RSA padding checks for SSL/TLS.
9050 *) Added BIO proxy/filter functionality.
9053 *) Added extra_certs to SSL_CTX which can be used
9054 send extra CA certificates to the client in the CA cert chain sending
9055 process. It can be configured with SSL_CTX_add_extra_chain_cert().
9058 *) Now Fortezza is denied in the authentication phase because
9059 this is key exchange mechanism is not supported by SSLeay at all.
9062 *) Additional PKCS1 checks.
9065 *) Support the string "TLSv1" for all TLS v1 ciphers.
9068 *) Added function SSL_get_ex_data_X509_STORE_CTX_idx() which gives the
9069 ex_data index of the SSL context in the X509_STORE_CTX ex_data.
9072 *) Fixed a few memory leaks.
9075 *) Fixed various code and comment typos.
9078 *) A minor bug in ssl/s3_clnt.c where there would always be 4 0
9079 bytes sent in the client random.
9080 [Edward Bishop <ebishop@spyglass.com>]
projects / thirdparty / openssl.git / blob