5 Changes between 0.9.8n and 1.0.0 [29 Mar 2010]
7 *) Add "missing" function EVP_CIPHER_CTX_copy(). This copies a cipher
8 context. The operation can be customised via the ctrl mechanism in
9 case ENGINEs want to include additional functionality.
12 *) Tolerate yet another broken PKCS#8 key format: private key value negative.
15 *) Add new -subject_hash_old and -issuer_hash_old options to x509 utility to
16 output hashes compatible with older versions of OpenSSL.
17 [Willy Weisz <weisz@vcpc.univie.ac.at>]
19 *) Fix compression algorithm handling: if resuming a session use the
20 compression algorithm of the resumed session instead of determining
21 it from client hello again. Don't allow server to change algorithm.
24 *) Add load_crls() function to apps tidying load_certs() too. Add option
25 to verify utility to allow additional CRLs to be included.
28 *) Update OCSP request code to permit adding custom headers to the request:
29 some responders need this.
32 *) The function EVP_PKEY_sign() returns <=0 on error: check return code
34 [Julia Lawall <julia@diku.dk>]
36 *) Update verify callback code in apps/s_cb.c and apps/verify.c, it
37 needlessly dereferenced structures, used obsolete functions and
38 didn't handle all updated verify codes correctly.
41 *) Disable MD2 in the default configuration.
44 *) In BIO_pop() and BIO_push() use the ctrl argument (which was NULL) to
45 indicate the initial BIO being pushed or popped. This makes it possible
46 to determine whether the BIO is the one explicitly called or as a result
47 of the ctrl being passed down the chain. Fix BIO_pop() and SSL BIOs so
48 it handles reference counts correctly and doesn't zero out the I/O bio
49 when it is not being explicitly popped. WARNING: applications which
50 included workarounds for the old buggy behaviour will need to be modified
51 or they could free up already freed BIOs.
54 *) Extend the uni2asc/asc2uni => OPENSSL_uni2asc/OPENSSL_asc2uni
55 renaming to all platforms (within the 0.9.8 branch, this was
56 done conditionally on Netware platforms to avoid a name clash).
57 [Guenter <lists@gknw.net>]
59 *) Add ECDHE and PSK support to DTLS.
60 [Michael Tuexen <tuexen@fh-muenster.de>]
62 *) Add CHECKED_STACK_OF macro to safestack.h, otherwise safestack can't
66 *) Add "missing" function EVP_MD_flags() (without this the only way to
67 retrieve a digest flags is by accessing the structure directly. Update
68 EVP_MD_do_all*() and EVP_CIPHER_do_all*() to include the name a digest
69 or cipher is registered as in the "from" argument. Print out all
70 registered digests in the dgst usage message instead of manually
71 attempting to work them out.
74 *) If no SSLv2 ciphers are used don't use an SSLv2 compatible client hello:
75 this allows the use of compression and extensions. Change default cipher
76 string to remove SSLv2 ciphersuites. This effectively avoids ancient SSLv2
77 by default unless an application cipher string requests it.
80 *) Alter match criteria in PKCS12_parse(). It used to try to use local
81 key ids to find matching certificates and keys but some PKCS#12 files
82 don't follow the (somewhat unwritten) rules and this strategy fails.
83 Now just gather all certificates together and the first private key
84 then look for the first certificate that matches the key.
87 *) Support use of registered digest and cipher names for dgst and cipher
88 commands instead of having to add each one as a special case. So now
95 openssl dgst -sha256 foo
97 and this works for ENGINE based algorithms too.
101 *) Update Gost ENGINE to support parameter files.
102 [Victor B. Wagner <vitus@cryptocom.ru>]
104 *) Support GeneralizedTime in ca utility.
105 [Oliver Martin <oliver@volatilevoid.net>, Steve Henson]
107 *) Enhance the hash format used for certificate directory links. The new
108 form uses the canonical encoding (meaning equivalent names will work
109 even if they aren't identical) and uses SHA1 instead of MD5. This form
110 is incompatible with the older format and as a result c_rehash should
111 be used to rebuild symbolic links.
114 *) Make PKCS#8 the default write format for private keys, replacing the
115 traditional format. This form is standardised, more secure and doesn't
116 include an implicit MD5 dependency.
119 *) Add a $gcc_devteam_warn option to Configure. The idea is that any code
120 committed to OpenSSL should pass this lot as a minimum.
123 *) Add session ticket override functionality for use by EAP-FAST.
124 [Jouni Malinen <j@w1.fi>]
126 *) Modify HMAC functions to return a value. Since these can be implemented
127 in an ENGINE errors can occur.
130 *) Type-checked OBJ_bsearch_ex.
133 *) Type-checked OBJ_bsearch. Also some constification necessitated
134 by type-checking. Still to come: TXT_DB, bsearch(?),
135 OBJ_bsearch_ex, qsort, CRYPTO_EX_DATA, ASN1_VALUE, ASN1_STRING,
139 *) New function OPENSSL_gmtime_adj() to add a specific number of days and
140 seconds to a tm structure directly, instead of going through OS
141 specific date routines. This avoids any issues with OS routines such
142 as the year 2038 bug. New *_adj() functions for ASN1 time structures
143 and X509_time_adj_ex() to cover the extended range. The existing
144 X509_time_adj() is still usable and will no longer have any date issues.
147 *) Delta CRL support. New use deltas option which will attempt to locate
148 and search any appropriate delta CRLs available.
150 This work was sponsored by Google.
153 *) Support for CRLs partitioned by reason code. Reorganise CRL processing
154 code and add additional score elements. Validate alternate CRL paths
155 as part of the CRL checking and indicate a new error "CRL path validation
156 error" in this case. Applications wanting additional details can use
157 the verify callback and check the new "parent" field. If this is not
158 NULL CRL path validation is taking place. Existing applications wont
159 see this because it requires extended CRL support which is off by
162 This work was sponsored by Google.
165 *) Support for freshest CRL extension.
167 This work was sponsored by Google.
170 *) Initial indirect CRL support. Currently only supported in the CRLs
171 passed directly and not via lookup. Process certificate issuer
172 CRL entry extension and lookup CRL entries by bother issuer name
173 and serial number. Check and process CRL issuer entry in IDP extension.
175 This work was sponsored by Google.
178 *) Add support for distinct certificate and CRL paths. The CRL issuer
179 certificate is validated separately in this case. Only enabled if
180 an extended CRL support flag is set: this flag will enable additional
181 CRL functionality in future.
183 This work was sponsored by Google.
186 *) Add support for policy mappings extension.
188 This work was sponsored by Google.
191 *) Fixes to pathlength constraint, self issued certificate handling,
192 policy processing to align with RFC3280 and PKITS tests.
194 This work was sponsored by Google.
197 *) Support for name constraints certificate extension. DN, email, DNS
198 and URI types are currently supported.
200 This work was sponsored by Google.
203 *) To cater for systems that provide a pointer-based thread ID rather
204 than numeric, deprecate the current numeric thread ID mechanism and
205 replace it with a structure and associated callback type. This
206 mechanism allows a numeric "hash" to be extracted from a thread ID in
207 either case, and on platforms where pointers are larger than 'long',
208 mixing is done to help ensure the numeric 'hash' is usable even if it
209 can't be guaranteed unique. The default mechanism is to use "&errno"
210 as a pointer-based thread ID to distinguish between threads.
212 Applications that want to provide their own thread IDs should now use
213 CRYPTO_THREADID_set_callback() to register a callback that will call
214 either CRYPTO_THREADID_set_numeric() or CRYPTO_THREADID_set_pointer().
216 Note that ERR_remove_state() is now deprecated, because it is tied
217 to the assumption that thread IDs are numeric. ERR_remove_state(0)
218 to free the current thread's error state should be replaced by
219 ERR_remove_thread_state(NULL).
221 (This new approach replaces the functions CRYPTO_set_idptr_callback(),
222 CRYPTO_get_idptr_callback(), and CRYPTO_thread_idptr() that existed in
223 OpenSSL 0.9.9-dev between June 2006 and August 2008. Also, if an
224 application was previously providing a numeric thread callback that
225 was inappropriate for distinguishing threads, then uniqueness might
226 have been obtained with &errno that happened immediately in the
227 intermediate development versions of OpenSSL; this is no longer the
228 case, the numeric thread callback will now override the automatic use
230 [Geoff Thorpe, with help from Bodo Moeller]
232 *) Initial support for different CRL issuing certificates. This covers a
233 simple case where the self issued certificates in the chain exist and
234 the real CRL issuer is higher in the existing chain.
236 This work was sponsored by Google.
239 *) Removed effectively defunct crypto/store from the build.
242 *) Revamp of STACK to provide stronger type-checking. Still to come:
243 TXT_DB, bsearch(?), OBJ_bsearch, qsort, CRYPTO_EX_DATA, ASN1_VALUE,
244 ASN1_STRING, CONF_VALUE.
247 *) Add a new SSL_MODE_RELEASE_BUFFERS mode flag to release unused buffer
248 RAM on SSL connections. This option can save about 34k per idle SSL.
251 *) Revamp of LHASH to provide stronger type-checking. Still to come:
252 STACK, TXT_DB, bsearch, qsort.
255 *) Initial support for Cryptographic Message Syntax (aka CMS) based
256 on RFC3850, RFC3851 and RFC3852. New cms directory and cms utility,
257 support for data, signedData, compressedData, digestedData and
258 encryptedData, envelopedData types included. Scripts to check against
259 RFC4134 examples draft and interop and consistency checks of many
260 content types and variants.
263 *) Add options to enc utility to support use of zlib compression BIO.
266 *) Extend mk1mf to support importing of options and assembly language
267 files from Configure script, currently only included in VC-WIN32.
268 The assembly language rules can now optionally generate the source
269 files from the associated perl scripts.
272 *) Implement remaining functionality needed to support GOST ciphersuites.
273 Interop testing has been performed using CryptoPro implementations.
274 [Victor B. Wagner <vitus@cryptocom.ru>]
276 *) s390x assembler pack.
279 *) ARMv4 assembler pack. ARMv4 refers to v4 and later ISA, not CPU
283 *) Implement Opaque PRF Input TLS extension as specified in
284 draft-rescorla-tls-opaque-prf-input-00.txt. Since this is not an
285 official specification yet and no extension type assignment by
286 IANA exists, this extension (for now) will have to be explicitly
287 enabled when building OpenSSL by providing the extension number
288 to use. For example, specify an option
290 -DTLSEXT_TYPE_opaque_prf_input=0x9527
292 to the "config" or "Configure" script to enable the extension,
293 assuming extension number 0x9527 (which is a completely arbitrary
294 and unofficial assignment based on the MD5 hash of the Internet
295 Draft). Note that by doing so, you potentially lose
296 interoperability with other TLS implementations since these might
297 be using the same extension number for other purposes.
299 SSL_set_tlsext_opaque_prf_input(ssl, src, len) is used to set the
300 opaque PRF input value to use in the handshake. This will create
301 an interal copy of the length-'len' string at 'src', and will
302 return non-zero for success.
304 To get more control and flexibility, provide a callback function
307 SSL_CTX_set_tlsext_opaque_prf_input_callback(ctx, cb)
308 SSL_CTX_set_tlsext_opaque_prf_input_callback_arg(ctx, arg)
312 int (*cb)(SSL *, void *peerinput, size_t len, void *arg);
315 Callback function 'cb' will be called in handshakes, and is
316 expected to use SSL_set_tlsext_opaque_prf_input() as appropriate.
317 Argument 'arg' is for application purposes (the value as given to
318 SSL_CTX_set_tlsext_opaque_prf_input_callback_arg() will directly
319 be provided to the callback function). The callback function
320 has to return non-zero to report success: usually 1 to use opaque
321 PRF input just if possible, or 2 to enforce use of the opaque PRF
322 input. In the latter case, the library will abort the handshake
323 if opaque PRF input is not successfully negotiated.
325 Arguments 'peerinput' and 'len' given to the callback function
326 will always be NULL and 0 in the case of a client. A server will
327 see the client's opaque PRF input through these variables if
328 available (NULL and 0 otherwise). Note that if the server
329 provides an opaque PRF input, the length must be the same as the
330 length of the client's opaque PRF input.
332 Note that the callback function will only be called when creating
333 a new session (session resumption can resume whatever was
334 previously negotiated), and will not be called in SSL 2.0
335 handshakes; thus, SSL_CTX_set_options(ctx, SSL_OP_NO_SSLv2) or
336 SSL_set_options(ssl, SSL_OP_NO_SSLv2) is especially recommended
337 for applications that need to enforce opaque PRF input.
341 *) Update ssl code to support digests other than SHA1+MD5 for handshake
344 [Victor B. Wagner <vitus@cryptocom.ru>]
346 *) Add RFC4507 support to OpenSSL. This includes the corrections in
347 RFC4507bis. The encrypted ticket format is an encrypted encoded
348 SSL_SESSION structure, that way new session features are automatically
351 If a client application caches session in an SSL_SESSION structure
352 support is transparent because tickets are now stored in the encoded
355 The SSL_CTX structure automatically generates keys for ticket
356 protection in servers so again support should be possible
357 with no application modification.
359 If a client or server wishes to disable RFC4507 support then the option
360 SSL_OP_NO_TICKET can be set.
362 Add a TLS extension debugging callback to allow the contents of any client
363 or server extensions to be examined.
365 This work was sponsored by Google.
368 *) Final changes to avoid use of pointer pointer casts in OpenSSL.
369 OpenSSL should now compile cleanly on gcc 4.2
370 [Peter Hartley <pdh@utter.chaos.org.uk>, Steve Henson]
372 *) Update SSL library to use new EVP_PKEY MAC API. Include generic MAC
373 support including streaming MAC support: this is required for GOST
375 [Victor B. Wagner <vitus@cryptocom.ru>, Steve Henson]
377 *) Add option -stream to use PKCS#7 streaming in smime utility. New
378 function i2d_PKCS7_bio_stream() and PEM_write_PKCS7_bio_stream()
379 to output in BER and PEM format.
382 *) Experimental support for use of HMAC via EVP_PKEY interface. This
383 allows HMAC to be handled via the EVP_DigestSign*() interface. The
384 EVP_PKEY "key" in this case is the HMAC key, potentially allowing
385 ENGINE support for HMAC keys which are unextractable. New -mac and
386 -macopt options to dgst utility.
389 *) New option -sigopt to dgst utility. Update dgst to use
390 EVP_Digest{Sign,Verify}*. These two changes make it possible to use
391 alternative signing paramaters such as X9.31 or PSS in the dgst
395 *) Change ssl_cipher_apply_rule(), the internal function that does
396 the work each time a ciphersuite string requests enabling
397 ("foo+bar"), moving ("+foo+bar"), disabling ("-foo+bar", or
398 removing ("!foo+bar") a class of ciphersuites: Now it maintains
399 the order of disabled ciphersuites such that those ciphersuites
400 that most recently went from enabled to disabled not only stay
401 in order with respect to each other, but also have higher priority
402 than other disabled ciphersuites the next time ciphersuites are
405 This means that you can now say, e.g., "PSK:-PSK:HIGH" to enable
406 the same ciphersuites as with "HIGH" alone, but in a specific
407 order where the PSK ciphersuites come first (since they are the
408 most recently disabled ciphersuites when "HIGH" is parsed).
410 Also, change ssl_create_cipher_list() (using this new
411 funcionality) such that between otherwise identical
412 cihpersuites, ephemeral ECDH is preferred over ephemeral DH in
416 *) Change ssl_create_cipher_list() so that it automatically
417 arranges the ciphersuites in reasonable order before starting
418 to process the rule string. Thus, the definition for "DEFAULT"
419 (SSL_DEFAULT_CIPHER_LIST) now is just "ALL:!aNULL:!eNULL", but
420 remains equivalent to "AES:ALL:!aNULL:!eNULL:+aECDH:+kRSA:+RC4:@STRENGTH".
421 This makes it much easier to arrive at a reasonable default order
422 in applications for which anonymous ciphers are OK (meaning
423 that you can't actually use DEFAULT).
424 [Bodo Moeller; suggested by Victor Duchovni]
426 *) Split the SSL/TLS algorithm mask (as used for ciphersuite string
427 processing) into multiple integers instead of setting
428 "SSL_MKEY_MASK" bits, "SSL_AUTH_MASK" bits, "SSL_ENC_MASK",
429 "SSL_MAC_MASK", and "SSL_SSL_MASK" bits all in a single integer.
430 (These masks as well as the individual bit definitions are hidden
431 away into the non-exported interface ssl/ssl_locl.h, so this
432 change to the definition of the SSL_CIPHER structure shouldn't
433 affect applications.) This give us more bits for each of these
434 categories, so there is no longer a need to coagulate AES128 and
435 AES256 into a single algorithm bit, and to coagulate Camellia128
436 and Camellia256 into a single algorithm bit, which has led to all
439 Thus, among other things, the kludge introduced in 0.9.7m and
440 0.9.8e for masking out AES256 independently of AES128 or masking
441 out Camellia256 independently of AES256 is not needed here in 0.9.9.
443 With the change, we also introduce new ciphersuite aliases that
444 so far were missing: "AES128", "AES256", "CAMELLIA128", and
448 *) Add support for dsa-with-SHA224 and dsa-with-SHA256.
449 Use the leftmost N bytes of the signature input if the input is
450 larger than the prime q (with N being the size in bytes of q).
453 *) Very *very* experimental PKCS#7 streaming encoder support. Nothing uses
454 it yet and it is largely untested.
457 *) Add support for the ecdsa-with-SHA224/256/384/512 signature types.
460 *) Initial incomplete changes to avoid need for function casts in OpenSSL
461 some compilers (gcc 4.2 and later) reject their use. Safestack is
462 reimplemented. Update ASN1 to avoid use of legacy functions.
465 *) Win32/64 targets are linked with Winsock2.
468 *) Add an X509_CRL_METHOD structure to allow CRL processing to be redirected
469 to external functions. This can be used to increase CRL handling
470 efficiency especially when CRLs are very large by (for example) storing
471 the CRL revoked certificates in a database.
474 *) Overhaul of by_dir code. Add support for dynamic loading of CRLs so
475 new CRLs added to a directory can be used. New command line option
476 -verify_return_error to s_client and s_server. This causes real errors
477 to be returned by the verify callback instead of carrying on no matter
478 what. This reflects the way a "real world" verify callback would behave.
481 *) GOST engine, supporting several GOST algorithms and public key formats.
482 Kindly donated by Cryptocom.
485 *) Partial support for Issuing Distribution Point CRL extension. CRLs
486 partitioned by DP are handled but no indirect CRL or reason partitioning
487 (yet). Complete overhaul of CRL handling: now the most suitable CRL is
488 selected via a scoring technique which handles IDP and AKID in CRLs.
491 *) New X509_STORE_CTX callbacks lookup_crls() and lookup_certs() which
492 will ultimately be used for all verify operations: this will remove the
493 X509_STORE dependency on certificate verification and allow alternative
494 lookup methods. X509_STORE based implementations of these two callbacks.
497 *) Allow multiple CRLs to exist in an X509_STORE with matching issuer names.
498 Modify get_crl() to find a valid (unexpired) CRL if possible.
501 *) New function X509_CRL_match() to check if two CRLs are identical. Normally
502 this would be called X509_CRL_cmp() but that name is already used by
503 a function that just compares CRL issuer names. Cache several CRL
504 extensions in X509_CRL structure and cache CRLDP in X509.
507 *) Store a "canonical" representation of X509_NAME structure (ASN1 Name)
508 this maps equivalent X509_NAME structures into a consistent structure.
509 Name comparison can then be performed rapidly using memcmp().
512 *) Non-blocking OCSP request processing. Add -timeout option to ocsp
516 *) Allow digests to supply their own micalg string for S/MIME type using
517 the ctrl EVP_MD_CTRL_MICALG.
520 *) During PKCS7 signing pass the PKCS7 SignerInfo structure to the
521 EVP_PKEY_METHOD before and after signing via the EVP_PKEY_CTRL_PKCS7_SIGN
522 ctrl. It can then customise the structure before and/or after signing
526 *) New function OBJ_add_sigid() to allow application defined signature OIDs
527 to be added to OpenSSLs internal tables. New function OBJ_sigid_free()
528 to free up any added signature OIDs.
531 *) New functions EVP_CIPHER_do_all(), EVP_CIPHER_do_all_sorted(),
532 EVP_MD_do_all() and EVP_MD_do_all_sorted() to enumerate internal
533 digest and cipher tables. New options added to openssl utility:
534 list-message-digest-algorithms and list-cipher-algorithms.
537 *) Change the array representation of binary polynomials: the list
538 of degrees of non-zero coefficients is now terminated with -1.
539 Previously it was terminated with 0, which was also part of the
540 value; thus, the array representation was not applicable to
541 polynomials where t^0 has coefficient zero. This change makes
542 the array representation useful in a more general context.
545 *) Various modifications and fixes to SSL/TLS cipher string
546 handling. For ECC, the code now distinguishes between fixed ECDH
547 with RSA certificates on the one hand and with ECDSA certificates
548 on the other hand, since these are separate ciphersuites. The
549 unused code for Fortezza ciphersuites has been removed.
551 For consistency with EDH, ephemeral ECDH is now called "EECDH"
552 (not "ECDHE"). For consistency with the code for DH
553 certificates, use of ECDH certificates is now considered ECDH
554 authentication, not RSA or ECDSA authentication (the latter is
555 merely the CA's signing algorithm and not actively used in the
558 The temporary ciphersuite alias "ECCdraft" is no longer
559 available, and ECC ciphersuites are no longer excluded from "ALL"
560 and "DEFAULT". The following aliases now exist for RFC 4492
561 ciphersuites, most of these by analogy with the DH case:
563 kECDHr - ECDH cert, signed with RSA
564 kECDHe - ECDH cert, signed with ECDSA
565 kECDH - ECDH cert (signed with either RSA or ECDSA)
566 kEECDH - ephemeral ECDH
567 ECDH - ECDH cert or ephemeral ECDH
573 AECDH - anonymous ECDH
574 EECDH - non-anonymous ephemeral ECDH (equivalent to "kEECDH:-AECDH")
578 *) Add additional S/MIME capabilities for AES and GOST ciphers if supported.
579 Use correct micalg parameters depending on digest(s) in signed message.
582 *) Add engine support for EVP_PKEY_ASN1_METHOD. Add functions to process
583 an ENGINE asn1 method. Support ENGINE lookups in the ASN1 code.
586 *) Initial engine support for EVP_PKEY_METHOD. New functions to permit
587 an engine to register a method. Add ENGINE lookups for methods and
588 functional reference processing.
591 *) New functions EVP_Digest{Sign,Verify)*. These are enchance versions of
592 EVP_{Sign,Verify}* which allow an application to customise the signature
596 *) New -resign option to smime utility. This adds one or more signers
597 to an existing PKCS#7 signedData structure. Also -md option to use an
598 alternative message digest algorithm for signing.
601 *) Tidy up PKCS#7 routines and add new functions to make it easier to
602 create PKCS7 structures containing multiple signers. Update smime
603 application to support multiple signers.
606 *) New -macalg option to pkcs12 utility to allow setting of an alternative
610 *) Initial support for PKCS#5 v2.0 PRFs other than default SHA1 HMAC.
611 Reorganize PBE internals to lookup from a static table using NIDs,
612 add support for HMAC PBE OID translation. Add a EVP_CIPHER ctrl:
613 EVP_CTRL_PBE_PRF_NID this allows a cipher to specify an alternative
614 PRF which will be automatically used with PBES2.
617 *) Replace the algorithm specific calls to generate keys in "req" with the
621 *) Update PKCS#7 enveloped data routines to use new API. This is now
622 supported by any public key method supporting the encrypt operation. A
623 ctrl is added to allow the public key algorithm to examine or modify
624 the PKCS#7 RecipientInfo structure if it needs to: for RSA this is
628 *) Add a ctrl to asn1 method to allow a public key algorithm to express
629 a default digest type to use. In most cases this will be SHA1 but some
630 algorithms (such as GOST) need to specify an alternative digest. The
631 return value indicates how strong the prefernce is 1 means optional and
632 2 is mandatory (that is it is the only supported type). Modify
633 ASN1_item_sign() to accept a NULL digest argument to indicate it should
634 use the default md. Update openssl utilities to use the default digest
635 type for signing if it is not explicitly indicated.
638 *) Use OID cross reference table in ASN1_sign() and ASN1_verify(). New
639 EVP_MD flag EVP_MD_FLAG_PKEY_METHOD_SIGNATURE. This uses the relevant
640 signing method from the key type. This effectively removes the link
641 between digests and public key types.
644 *) Add an OID cross reference table and utility functions. Its purpose is to
645 translate between signature OIDs such as SHA1WithrsaEncryption and SHA1,
646 rsaEncryption. This will allow some of the algorithm specific hackery
647 needed to use the correct OID to be removed.
650 *) Remove algorithm specific dependencies when setting PKCS7_SIGNER_INFO
651 structures for PKCS7_sign(). They are now set up by the relevant public
655 *) Add provisional EC pkey method with support for ECDSA and ECDH.
658 *) Add support for key derivation (agreement) in the API, DH method and
662 *) Add DSA pkey method and DH pkey methods, extend DH ASN1 method to support
663 public and private key formats. As a side effect these add additional
664 command line functionality not previously available: DSA signatures can be
665 generated and verified using pkeyutl and DH key support and generation in
670 [Oliver Tappe <zooey@hirschkaefer.de>]
672 *) New make target "install_html_docs" installs HTML renditions of the
674 [Oliver Tappe <zooey@hirschkaefer.de>]
676 *) New utility "genpkey" this is analagous to "genrsa" etc except it can
677 generate keys for any algorithm. Extend and update EVP_PKEY_METHOD to
678 support key and parameter generation and add initial key generation
679 functionality for RSA.
682 *) Add functions for main EVP_PKEY_method operations. The undocumented
683 functions EVP_PKEY_{encrypt,decrypt} have been renamed to
684 EVP_PKEY_{encrypt,decrypt}_old.
687 *) Initial definitions for EVP_PKEY_METHOD. This will be a high level public
688 key API, doesn't do much yet.
691 *) New function EVP_PKEY_asn1_get0_info() to retrieve information about
692 public key algorithms. New option to openssl utility:
693 "list-public-key-algorithms" to print out info.
696 *) Implement the Supported Elliptic Curves Extension for
697 ECC ciphersuites from draft-ietf-tls-ecc-12.txt.
700 *) Don't free up OIDs in OBJ_cleanup() if they are in use by EVP_MD or
701 EVP_CIPHER structures to avoid later problems in EVP_cleanup().
704 *) New utilities pkey and pkeyparam. These are similar to algorithm specific
705 utilities such as rsa, dsa, dsaparam etc except they process any key
709 *) Transfer public key printing routines to EVP_PKEY_ASN1_METHOD. New
710 functions EVP_PKEY_print_public(), EVP_PKEY_print_private(),
711 EVP_PKEY_print_param() to print public key data from an EVP_PKEY
715 *) Initial support for pluggable public key ASN1.
716 De-spaghettify the public key ASN1 handling. Move public and private
717 key ASN1 handling to a new EVP_PKEY_ASN1_METHOD structure. Relocate
718 algorithm specific handling to a single module within the relevant
719 algorithm directory. Add functions to allow (near) opaque processing
720 of public and private key structures.
723 *) Implement the Supported Point Formats Extension for
724 ECC ciphersuites from draft-ietf-tls-ecc-12.txt.
727 *) Add initial support for RFC 4279 PSK TLS ciphersuites. Add members
728 for the psk identity [hint] and the psk callback functions to the
729 SSL_SESSION, SSL and SSL_CTX structure.
732 PSK-RC4-SHA, PSK-3DES-EDE-CBC-SHA, PSK-AES128-CBC-SHA,
736 SSL_CTX_use_psk_identity_hint
737 SSL_get_psk_identity_hint
739 SSL_use_psk_identity_hint
741 [Mika Kousa and Pasi Eronen of Nokia Corporation]
743 *) Add RFC 3161 compliant time stamp request creation, response generation
744 and response verification functionality.
745 [Zoltán Glózik <zglozik@opentsa.org>, The OpenTSA Project]
747 *) Add initial support for TLS extensions, specifically for the server_name
748 extension so far. The SSL_SESSION, SSL_CTX, and SSL data structures now
749 have new members for a host name. The SSL data structure has an
750 additional member SSL_CTX *initial_ctx so that new sessions can be
751 stored in that context to allow for session resumption, even after the
752 SSL has been switched to a new SSL_CTX in reaction to a client's
753 server_name extension.
755 New functions (subject to change):
758 SSL_get_servername_type()
761 New CTRL codes and macros (subject to change):
763 SSL_CTRL_SET_TLSEXT_SERVERNAME_CB
764 - SSL_CTX_set_tlsext_servername_callback()
765 SSL_CTRL_SET_TLSEXT_SERVERNAME_ARG
766 - SSL_CTX_set_tlsext_servername_arg()
767 SSL_CTRL_SET_TLSEXT_HOSTNAME - SSL_set_tlsext_host_name()
769 openssl s_client has a new '-servername ...' option.
771 openssl s_server has new options '-servername_host ...', '-cert2 ...',
772 '-key2 ...', '-servername_fatal' (subject to change). This allows
773 testing the HostName extension for a specific single host name ('-cert'
774 and '-key' remain fallbacks for handshakes without HostName
775 negotiation). If the unrecogninzed_name alert has to be sent, this by
776 default is a warning; it becomes fatal with the '-servername_fatal'
779 [Peter Sylvester, Remy Allais, Christophe Renou]
781 *) Whirlpool hash implementation is added.
784 *) BIGNUM code on 64-bit SPARCv9 targets is switched from bn(64,64) to
785 bn(64,32). Because of instruction set limitations it doesn't have
786 any negative impact on performance. This was done mostly in order
787 to make it possible to share assembler modules, such as bn_mul_mont
788 implementations, between 32- and 64-bit builds without hassle.
791 *) Move code previously exiled into file crypto/ec/ec2_smpt.c
792 to ec2_smpl.c, and no longer require the OPENSSL_EC_BIN_PT_COMP
796 *) New candidate for BIGNUM assembler implementation, bn_mul_mont,
797 dedicated Montgomery multiplication procedure, is introduced.
798 BN_MONT_CTX is modified to allow bn_mul_mont to reach for higher
799 "64-bit" performance on certain 32-bit targets.
802 *) New option SSL_OP_NO_COMP to disable use of compression selectively
803 in SSL structures. New SSL ctrl to set maximum send fragment size.
804 Save memory by seeting the I/O buffer sizes dynamically instead of
805 using the maximum available value.
808 *) New option -V for 'openssl ciphers'. This prints the ciphersuite code
809 in addition to the text details.
812 *) Very, very preliminary EXPERIMENTAL support for printing of general
813 ASN1 structures. This currently produces rather ugly output and doesn't
814 handle several customised structures at all.
817 *) Integrated support for PVK file format and some related formats such
818 as MS PUBLICKEYBLOB and PRIVATEKEYBLOB. Command line switches to support
819 these in the 'rsa' and 'dsa' utilities.
822 *) Support for PKCS#1 RSAPublicKey format on rsa utility command line.
825 *) Remove the ancient ASN1_METHOD code. This was only ever used in one
826 place for the (very old) "NETSCAPE" format certificates which are now
827 handled using new ASN1 code equivalents.
830 *) Let the TLSv1_method() etc. functions return a 'const' SSL_METHOD
831 pointer and make the SSL_METHOD parameter in SSL_CTX_new,
832 SSL_CTX_set_ssl_version and SSL_set_ssl_method 'const'.
835 *) Modify CRL distribution points extension code to print out previously
836 unsupported fields. Enhance extension setting code to allow setting of
840 *) Add print and set support for Issuing Distribution Point CRL extension.
843 *) Change 'Configure' script to enable Camellia by default.
846 Changes between 0.9.8m and 0.9.8n [24 Mar 2010]
848 *) When rejecting SSL/TLS records due to an incorrect version number, never
849 update s->server with a new major version number. As of
850 - OpenSSL 0.9.8m if 'short' is a 16-bit type,
851 - OpenSSL 0.9.8f if 'short' is longer than 16 bits,
852 the previous behavior could result in a read attempt at NULL when
853 receiving specific incorrect SSL/TLS records once record payload
854 protection is active. (CVE-2010-####)
855 [Bodo Moeller, Adam Langley]
857 *) Fix for CVE-2010-0433 where some kerberos enabled versions of OpenSSL
858 could be crashed if the relevant tables were not present (e.g. chrooted).
859 [Tomas Hoger <thoger@redhat.com>]
861 Changes between 0.9.8l and 0.9.8m [25 Feb 2010]
863 *) Always check bn_wexpend() return values for failure. (CVE-2009-3245)
864 [Martin Olsson, Neel Mehta]
866 *) Fix X509_STORE locking: Every 'objs' access requires a lock (to
867 accommodate for stack sorting, always a write lock!).
870 *) On some versions of WIN32 Heap32Next is very slow. This can cause
871 excessive delays in the RAND_poll(): over a minute. As a workaround
872 include a time check in the inner Heap32Next loop too.
875 *) The code that handled flushing of data in SSL/TLS originally used the
876 BIO_CTRL_INFO ctrl to see if any data was pending first. This caused
877 the problem outlined in PR#1949. The fix suggested there however can
878 trigger problems with buggy BIO_CTRL_WPENDING (e.g. some versions
879 of Apache). So instead simplify the code to flush unconditionally.
880 This should be fine since flushing with no data to flush is a no op.
883 *) Handle TLS versions 2.0 and later properly and correctly use the
884 highest version of TLS/SSL supported. Although TLS >= 2.0 is some way
885 off ancient servers have a habit of sticking around for a while...
888 *) Modify compression code so it frees up structures without using the
889 ex_data callbacks. This works around a problem where some applications
890 call CRYPTO_cleanup_all_ex_data() before application exit (e.g. when
891 restarting) then use compression (e.g. SSL with compression) later.
892 This results in significant per-connection memory leaks and
893 has caused some security issues including CVE-2008-1678 and
897 *) Constify crypto/cast (i.e., <openssl/cast.h>): a CAST_KEY doesn't
898 change when encrypting or decrypting.
901 *) Add option SSL_OP_LEGACY_SERVER_CONNECT which will allow clients to
902 connect and renegotiate with servers which do not support RI.
903 Until RI is more widely deployed this option is enabled by default.
906 *) Add "missing" ssl ctrls to clear options and mode.
909 *) If client attempts to renegotiate and doesn't support RI respond with
910 a no_renegotiation alert as required by RFC5746. Some renegotiating
911 TLS clients will continue a connection gracefully when they receive
912 the alert. Unfortunately OpenSSL mishandled this alert and would hang
913 waiting for a server hello which it will never receive. Now we treat a
914 received no_renegotiation alert as a fatal error. This is because
915 applications requesting a renegotiation might well expect it to succeed
916 and would have no code in place to handle the server denying it so the
917 only safe thing to do is to terminate the connection.
920 *) Add ctrl macro SSL_get_secure_renegotiation_support() which returns 1 if
921 peer supports secure renegotiation and 0 otherwise. Print out peer
922 renegotiation support in s_client/s_server.
925 *) Replace the highly broken and deprecated SPKAC certification method with
926 the updated NID creation version. This should correctly handle UTF8.
929 *) Implement RFC5746. Re-enable renegotiation but require the extension
930 as needed. Unfortunately, SSL3_FLAGS_ALLOW_UNSAFE_LEGACY_RENEGOTIATION
931 turns out to be a bad idea. It has been replaced by
932 SSL_OP_ALLOW_UNSAFE_LEGACY_RENEGOTIATION which can be set with
933 SSL_CTX_set_options(). This is really not recommended unless you
934 know what you are doing.
935 [Eric Rescorla <ekr@networkresonance.com>, Ben Laurie, Steve Henson]
937 *) Fixes to stateless session resumption handling. Use initial_ctx when
938 issuing and attempting to decrypt tickets in case it has changed during
939 servername handling. Use a non-zero length session ID when attempting
940 stateless session resumption: this makes it possible to determine if
941 a resumption has occurred immediately after receiving server hello
942 (several places in OpenSSL subtly assume this) instead of later in
946 *) The functions ENGINE_ctrl(), OPENSSL_isservice(),
947 CMS_get1_RecipientRequest() and RAND_bytes() can return <=0 on error
948 fixes for a few places where the return code is not checked
950 [Julia Lawall <julia@diku.dk>]
952 *) Add --strict-warnings option to Configure script to include devteam
953 warnings in other configurations.
956 *) Add support for --libdir option and LIBDIR variable in makefiles. This
957 makes it possible to install openssl libraries in locations which
958 have names other than "lib", for example "/usr/lib64" which some
960 [Steve Henson, based on patch from Jeremy Utley]
962 *) Don't allow the use of leading 0x80 in OIDs. This is a violation of
963 X690 8.9.12 and can produce some misleading textual output of OIDs.
964 [Steve Henson, reported by Dan Kaminsky]
966 *) Delete MD2 from algorithm tables. This follows the recommendation in
967 several standards that it is not used in new applications due to
968 several cryptographic weaknesses. For binary compatibility reasons
969 the MD2 API is still compiled in by default.
972 *) Add compression id to {d2i,i2d}_SSL_SESSION so it is correctly saved
976 *) Rename uni2asc and asc2uni functions to OPENSSL_uni2asc and
977 OPENSSL_asc2uni conditionally on Netware platforms to avoid a name
979 [Guenter <lists@gknw.net>]
981 *) Fix the server certificate chain building code to use X509_verify_cert(),
982 it used to have an ad-hoc builder which was unable to cope with anything
983 other than a simple chain.
984 [David Woodhouse <dwmw2@infradead.org>, Steve Henson]
986 *) Don't check self signed certificate signatures in X509_verify_cert()
987 by default (a flag can override this): it just wastes time without
988 adding any security. As a useful side effect self signed root CAs
989 with non-FIPS digests are now usable in FIPS mode.
992 *) In dtls1_process_out_of_seq_message() the check if the current message
993 is already buffered was missing. For every new message was memory
994 allocated, allowing an attacker to perform an denial of service attack
995 with sending out of seq handshake messages until there is no memory
996 left. Additionally every future messege was buffered, even if the
997 sequence number made no sense and would be part of another handshake.
998 So only messages with sequence numbers less than 10 in advance will be
999 buffered. (CVE-2009-1378)
1000 [Robin Seggelmann, discovered by Daniel Mentz]
1002 *) Records are buffered if they arrive with a future epoch to be
1003 processed after finishing the corresponding handshake. There is
1004 currently no limitation to this buffer allowing an attacker to perform
1005 a DOS attack with sending records with future epochs until there is no
1006 memory left. This patch adds the pqueue_size() function to detemine
1007 the size of a buffer and limits the record buffer to 100 entries.
1009 [Robin Seggelmann, discovered by Daniel Mentz]
1011 *) Keep a copy of frag->msg_header.frag_len so it can be used after the
1012 parent structure is freed. (CVE-2009-1379)
1015 *) Handle non-blocking I/O properly in SSL_shutdown() call.
1016 [Darryl Miles <darryl-mailinglists@netbauds.net>]
1019 [Ilya O. <vrghost@gmail.com>]
1021 Changes between 0.9.8k and 0.9.8l [5 Nov 2009]
1023 *) Disable renegotiation completely - this fixes a severe security
1024 problem (CVE-2009-3555) at the cost of breaking all
1025 renegotiation. Renegotiation can be re-enabled by setting
1026 SSL3_FLAGS_ALLOW_UNSAFE_LEGACY_RENEGOTIATION in s3->flags at
1027 run-time. This is really not recommended unless you know what
1031 Changes between 0.9.8j and 0.9.8k [25 Mar 2009]
1033 *) Don't set val to NULL when freeing up structures, it is freed up by
1034 underlying code. If sizeof(void *) > sizeof(long) this can result in
1035 zeroing past the valid field. (CVE-2009-0789)
1036 [Paolo Ganci <Paolo.Ganci@AdNovum.CH>]
1038 *) Fix bug where return value of CMS_SignerInfo_verify_content() was not
1039 checked correctly. This would allow some invalid signed attributes to
1040 appear to verify correctly. (CVE-2009-0591)
1041 [Ivan Nestlerode <inestlerode@us.ibm.com>]
1043 *) Reject UniversalString and BMPString types with invalid lengths. This
1044 prevents a crash in ASN1_STRING_print_ex() which assumes the strings have
1045 a legal length. (CVE-2009-0590)
1048 *) Set S/MIME signing as the default purpose rather than setting it
1049 unconditionally. This allows applications to override it at the store
1053 *) Permit restricted recursion of ASN1 strings. This is needed in practice
1054 to handle some structures.
1057 *) Improve efficiency of mem_gets: don't search whole buffer each time
1059 [Jeremy Shapiro <jnshapir@us.ibm.com>]
1061 *) New -hex option for openssl rand.
1064 *) Print out UTF8String and NumericString when parsing ASN1.
1067 *) Support NumericString type for name components.
1070 *) Allow CC in the environment to override the automatically chosen
1071 compiler. Note that nothing is done to ensure flags work with the
1075 Changes between 0.9.8i and 0.9.8j [07 Jan 2009]
1077 *) Properly check EVP_VerifyFinal() and similar return values
1079 [Ben Laurie, Bodo Moeller, Google Security Team]
1081 *) Enable TLS extensions by default.
1084 *) Allow the CHIL engine to be loaded, whether the application is
1085 multithreaded or not. (This does not release the developer from the
1086 obligation to set up the dynamic locking callbacks.)
1087 [Sander Temme <sander@temme.net>]
1089 *) Use correct exit code if there is an error in dgst command.
1090 [Steve Henson; problem pointed out by Roland Dirlewanger]
1092 *) Tweak Configure so that you need to say "experimental-jpake" to enable
1093 JPAKE, and need to use -DOPENSSL_EXPERIMENTAL_JPAKE in applications.
1096 *) Add experimental JPAKE support, including demo authentication in
1097 s_client and s_server.
1100 *) Set the comparison function in v3_addr_canonize().
1101 [Rob Austein <sra@hactrn.net>]
1103 *) Add support for XMPP STARTTLS in s_client.
1104 [Philip Paeps <philip@freebsd.org>]
1106 *) Change the server-side SSL_OP_NETSCAPE_REUSE_CIPHER_CHANGE_BUG behavior
1107 to ensure that even with this option, only ciphersuites in the
1108 server's preference list will be accepted. (Note that the option
1109 applies only when resuming a session, so the earlier behavior was
1110 just about the algorithm choice for symmetric cryptography.)
1113 Changes between 0.9.8h and 0.9.8i [15 Sep 2008]
1115 *) Fix NULL pointer dereference if a DTLS server received
1116 ChangeCipherSpec as first record (CVE-2009-1386).
1119 *) Fix a state transitition in s3_srvr.c and d1_srvr.c
1120 (was using SSL3_ST_CW_CLNT_HELLO_B, should be ..._ST_SW_SRVR_...).
1123 *) The fix in 0.9.8c that supposedly got rid of unsafe
1124 double-checked locking was incomplete for RSA blinding,
1125 addressing just one layer of what turns out to have been
1126 doubly unsafe triple-checked locking.
1128 So now fix this for real by retiring the MONT_HELPER macro
1129 in crypto/rsa/rsa_eay.c.
1131 [Bodo Moeller; problem pointed out by Marius Schilder]
1133 *) Various precautionary measures:
1135 - Avoid size_t integer overflow in HASH_UPDATE (md32_common.h).
1137 - Avoid a buffer overflow in d2i_SSL_SESSION() (ssl_asn1.c).
1138 (NB: This would require knowledge of the secret session ticket key
1139 to exploit, in which case you'd be SOL either way.)
1141 - Change bn_nist.c so that it will properly handle input BIGNUMs
1142 outside the expected range.
1144 - Enforce the 'num' check in BN_div() (bn_div.c) for non-BN_DEBUG
1147 [Neel Mehta, Bodo Moeller]
1149 *) Allow engines to be "soft loaded" - i.e. optionally don't die if
1150 the load fails. Useful for distros.
1151 [Ben Laurie and the FreeBSD team]
1153 *) Add support for Local Machine Keyset attribute in PKCS#12 files.
1156 *) Fix BN_GF2m_mod_arr() top-bit cleanup code.
1159 *) Expand ENGINE to support engine supplied SSL client certificate functions.
1161 This work was sponsored by Logica.
1164 *) Add CryptoAPI ENGINE to support use of RSA and DSA keys held in Windows
1165 keystores. Support for SSL/TLS client authentication too.
1166 Not compiled unless enable-capieng specified to Configure.
1168 This work was sponsored by Logica.
1171 *) Fix bug in X509_ATTRIBUTE creation: dont set attribute using
1172 ASN1_TYPE_set1 if MBSTRING flag set. This bug would crash certain
1173 attribute creation routines such as certifcate requests and PKCS#12
1177 Changes between 0.9.8g and 0.9.8h [28 May 2008]
1179 *) Fix flaw if 'Server Key exchange message' is omitted from a TLS
1180 handshake which could lead to a cilent crash as found using the
1181 Codenomicon TLS test suite (CVE-2008-1672)
1182 [Steve Henson, Mark Cox]
1184 *) Fix double free in TLS server name extensions which could lead to
1185 a remote crash found by Codenomicon TLS test suite (CVE-2008-0891)
1188 *) Clear error queue in SSL_CTX_use_certificate_chain_file()
1190 Clear the error queue to ensure that error entries left from
1191 older function calls do not interfere with the correct operation.
1192 [Lutz Jaenicke, Erik de Castro Lopo]
1194 *) Remove root CA certificates of commercial CAs:
1196 The OpenSSL project does not recommend any specific CA and does not
1197 have any policy with respect to including or excluding any CA.
1198 Therefore it does not make any sense to ship an arbitrary selection
1199 of root CA certificates with the OpenSSL software.
1202 *) RSA OAEP patches to fix two separate invalid memory reads.
1203 The first one involves inputs when 'lzero' is greater than
1204 'SHA_DIGEST_LENGTH' (it would read about SHA_DIGEST_LENGTH bytes
1205 before the beginning of from). The second one involves inputs where
1206 the 'db' section contains nothing but zeroes (there is a one-byte
1207 invalid read after the end of 'db').
1208 [Ivan Nestlerode <inestlerode@us.ibm.com>]
1210 *) Partial backport from 0.9.9-dev:
1212 Introduce bn_mul_mont (dedicated Montgomery multiplication
1213 procedure) as a candidate for BIGNUM assembler implementation.
1214 While 0.9.9-dev uses assembler for various architectures, only
1215 x86_64 is available by default here in the 0.9.8 branch, and
1216 32-bit x86 is available through a compile-time setting.
1218 To try the 32-bit x86 assembler implementation, use Configure
1219 option "enable-montasm" (which exists only for this backport).
1221 As "enable-montasm" for 32-bit x86 disclaims code stability
1222 anyway, in this constellation we activate additional code
1223 backported from 0.9.9-dev for further performance improvements,
1224 namely BN_from_montgomery_word. (To enable this otherwise,
1225 e.g. x86_64, try "-DMONT_FROM_WORD___NON_DEFAULT_0_9_8_BUILD".)
1227 [Andy Polyakov (backport partially by Bodo Moeller)]
1229 *) Add TLS session ticket callback. This allows an application to set
1230 TLS ticket cipher and HMAC keys rather than relying on hardcoded fixed
1231 values. This is useful for key rollover for example where several key
1232 sets may exist with different names.
1235 *) Reverse ENGINE-internal logic for caching default ENGINE handles.
1236 This was broken until now in 0.9.8 releases, such that the only way
1237 a registered ENGINE could be used (assuming it initialises
1238 successfully on the host) was to explicitly set it as the default
1239 for the relevant algorithms. This is in contradiction with 0.9.7
1240 behaviour and the documentation. With this fix, when an ENGINE is
1241 registered into a given algorithm's table of implementations, the
1242 'uptodate' flag is reset so that auto-discovery will be used next
1243 time a new context for that algorithm attempts to select an
1245 [Ian Lister (tweaked by Geoff Thorpe)]
1247 *) Backport of CMS code to OpenSSL 0.9.8. This differs from the 0.9.9
1248 implemention in the following ways:
1250 Lack of EVP_PKEY_ASN1_METHOD means algorithm parameters have to be
1253 Lack of BER streaming support means one pass streaming processing is
1254 only supported if data is detached: setting the streaming flag is
1255 ignored for embedded content.
1257 CMS support is disabled by default and must be explicitly enabled
1258 with the enable-cms configuration option.
1261 *) Update the GMP engine glue to do direct copies between BIGNUM and
1262 mpz_t when openssl and GMP use the same limb size. Otherwise the
1263 existing "conversion via a text string export" trick is still used.
1264 [Paul Sheer <paulsheer@gmail.com>]
1266 *) Zlib compression BIO. This is a filter BIO which compressed and
1267 uncompresses any data passed through it.
1270 *) Add AES_wrap_key() and AES_unwrap_key() functions to implement
1271 RFC3394 compatible AES key wrapping.
1274 *) Add utility functions to handle ASN1 structures. ASN1_STRING_set0():
1275 sets string data without copying. X509_ALGOR_set0() and
1276 X509_ALGOR_get0(): set and retrieve X509_ALGOR (AlgorithmIdentifier)
1277 data. Attribute function X509at_get0_data_by_OBJ(): retrieves data
1278 from an X509_ATTRIBUTE structure optionally checking it occurs only
1279 once. ASN1_TYPE_set1(): set and ASN1_TYPE structure copying supplied
1283 *) Fix BN flag handling in RSA_eay_mod_exp() and BN_MONT_CTX_set()
1284 to get the expected BN_FLG_CONSTTIME behavior.
1285 [Bodo Moeller (Google)]
1289 - fixed wrong usage of ioctlsocket() when build for LIBC BSD sockets
1290 - fixed do_tests.pl to run the test suite with CLIB builds too (CLIB_OPT)
1291 - added some more tests to do_tests.pl
1292 - fixed RunningProcess usage so that it works with newer LIBC NDKs too
1293 - removed usage of BN_LLONG for CLIB builds to avoid runtime dependency
1294 - added new Configure targets netware-clib-bsdsock, netware-clib-gcc,
1295 netware-clib-bsdsock-gcc, netware-libc-bsdsock-gcc
1296 - various changes to netware.pl to enable gcc-cross builds on Win32
1298 - changed crypto/bio/b_sock.c to work with macro functions (CLIB BSD)
1299 - various changes to fix missing prototype warnings
1300 - fixed x86nasm.pl to create correct asm files for NASM COFF output
1301 - added AES, WHIRLPOOL and CPUID assembler code to build files
1302 - added missing AES assembler make rules to mk1mf.pl
1303 - fixed order of includes in apps/ocsp.c so that e_os.h settings apply
1304 [Guenter Knauf <eflash@gmx.net>]
1306 *) Implement certificate status request TLS extension defined in RFC3546.
1307 A client can set the appropriate parameters and receive the encoded
1308 OCSP response via a callback. A server can query the supplied parameters
1309 and set the encoded OCSP response in the callback. Add simplified examples
1310 to s_client and s_server.
1313 Changes between 0.9.8f and 0.9.8g [19 Oct 2007]
1315 *) Fix various bugs:
1316 + Binary incompatibility of ssl_ctx_st structure
1317 + DTLS interoperation with non-compliant servers
1318 + Don't call get_session_cb() without proposed session
1319 + Fix ia64 assembler code
1320 [Andy Polyakov, Steve Henson]
1322 Changes between 0.9.8e and 0.9.8f [11 Oct 2007]
1324 *) DTLS Handshake overhaul. There were longstanding issues with
1325 OpenSSL DTLS implementation, which were making it impossible for
1326 RFC 4347 compliant client to communicate with OpenSSL server.
1327 Unfortunately just fixing these incompatibilities would "cut off"
1328 pre-0.9.8f clients. To allow for hassle free upgrade post-0.9.8e
1329 server keeps tolerating non RFC compliant syntax. The opposite is
1330 not true, 0.9.8f client can not communicate with earlier server.
1331 This update even addresses CVE-2007-4995.
1334 *) Changes to avoid need for function casts in OpenSSL: some compilers
1335 (gcc 4.2 and later) reject their use.
1336 [Kurt Roeckx <kurt@roeckx.be>, Peter Hartley <pdh@utter.chaos.org.uk>,
1339 *) Add RFC4507 support to OpenSSL. This includes the corrections in
1340 RFC4507bis. The encrypted ticket format is an encrypted encoded
1341 SSL_SESSION structure, that way new session features are automatically
1344 If a client application caches session in an SSL_SESSION structure
1345 support is transparent because tickets are now stored in the encoded
1348 The SSL_CTX structure automatically generates keys for ticket
1349 protection in servers so again support should be possible
1350 with no application modification.
1352 If a client or server wishes to disable RFC4507 support then the option
1353 SSL_OP_NO_TICKET can be set.
1355 Add a TLS extension debugging callback to allow the contents of any client
1356 or server extensions to be examined.
1358 This work was sponsored by Google.
1361 *) Add initial support for TLS extensions, specifically for the server_name
1362 extension so far. The SSL_SESSION, SSL_CTX, and SSL data structures now
1363 have new members for a host name. The SSL data structure has an
1364 additional member SSL_CTX *initial_ctx so that new sessions can be
1365 stored in that context to allow for session resumption, even after the
1366 SSL has been switched to a new SSL_CTX in reaction to a client's
1367 server_name extension.
1369 New functions (subject to change):
1371 SSL_get_servername()
1372 SSL_get_servername_type()
1375 New CTRL codes and macros (subject to change):
1377 SSL_CTRL_SET_TLSEXT_SERVERNAME_CB
1378 - SSL_CTX_set_tlsext_servername_callback()
1379 SSL_CTRL_SET_TLSEXT_SERVERNAME_ARG
1380 - SSL_CTX_set_tlsext_servername_arg()
1381 SSL_CTRL_SET_TLSEXT_HOSTNAME - SSL_set_tlsext_host_name()
1383 openssl s_client has a new '-servername ...' option.
1385 openssl s_server has new options '-servername_host ...', '-cert2 ...',
1386 '-key2 ...', '-servername_fatal' (subject to change). This allows
1387 testing the HostName extension for a specific single host name ('-cert'
1388 and '-key' remain fallbacks for handshakes without HostName
1389 negotiation). If the unrecogninzed_name alert has to be sent, this by
1390 default is a warning; it becomes fatal with the '-servername_fatal'
1393 [Peter Sylvester, Remy Allais, Christophe Renou, Steve Henson]
1395 *) Add AES and SSE2 assembly language support to VC++ build.
1398 *) Mitigate attack on final subtraction in Montgomery reduction.
1401 *) Fix crypto/ec/ec_mult.c to work properly with scalars of value 0
1402 (which previously caused an internal error).
1405 *) Squeeze another 10% out of IGE mode when in != out.
1408 *) AES IGE mode speedup.
1409 [Dean Gaudet (Google)]
1411 *) Add the Korean symmetric 128-bit cipher SEED (see
1412 http://www.kisa.or.kr/kisa/seed/jsp/seed_eng.jsp) and
1413 add SEED ciphersuites from RFC 4162:
1415 TLS_RSA_WITH_SEED_CBC_SHA = "SEED-SHA"
1416 TLS_DHE_DSS_WITH_SEED_CBC_SHA = "DHE-DSS-SEED-SHA"
1417 TLS_DHE_RSA_WITH_SEED_CBC_SHA = "DHE-RSA-SEED-SHA"
1418 TLS_DH_anon_WITH_SEED_CBC_SHA = "ADH-SEED-SHA"
1420 To minimize changes between patchlevels in the OpenSSL 0.9.8
1421 series, SEED remains excluded from compilation unless OpenSSL
1422 is configured with 'enable-seed'.
1423 [KISA, Bodo Moeller]
1425 *) Mitigate branch prediction attacks, which can be practical if a
1426 single processor is shared, allowing a spy process to extract
1427 information. For detailed background information, see
1428 http://eprint.iacr.org/2007/039 (O. Aciicmez, S. Gueron,
1429 J.-P. Seifert, "New Branch Prediction Vulnerabilities in OpenSSL
1430 and Necessary Software Countermeasures"). The core of the change
1431 are new versions BN_div_no_branch() and
1432 BN_mod_inverse_no_branch() of BN_div() and BN_mod_inverse(),
1433 respectively, which are slower, but avoid the security-relevant
1434 conditional branches. These are automatically called by BN_div()
1435 and BN_mod_inverse() if the flag BN_FLG_CONSTTIME is set for one
1436 of the input BIGNUMs. Also, BN_is_bit_set() has been changed to
1437 remove a conditional branch.
1439 BN_FLG_CONSTTIME is the new name for the previous
1440 BN_FLG_EXP_CONSTTIME flag, since it now affects more than just
1441 modular exponentiation. (Since OpenSSL 0.9.7h, setting this flag
1442 in the exponent causes BN_mod_exp_mont() to use the alternative
1443 implementation in BN_mod_exp_mont_consttime().) The old name
1444 remains as a deprecated alias.
1446 Similary, RSA_FLAG_NO_EXP_CONSTTIME is replaced by a more general
1447 RSA_FLAG_NO_CONSTTIME flag since the RSA implementation now uses
1448 constant-time implementations for more than just exponentiation.
1449 Here too the old name is kept as a deprecated alias.
1451 BN_BLINDING_new() will now use BN_dup() for the modulus so that
1452 the BN_BLINDING structure gets an independent copy of the
1453 modulus. This means that the previous "BIGNUM *m" argument to
1454 BN_BLINDING_new() and to BN_BLINDING_create_param() now
1455 essentially becomes "const BIGNUM *m", although we can't actually
1456 change this in the header file before 0.9.9. It allows
1457 RSA_setup_blinding() to use BN_with_flags() on the modulus to
1458 enable BN_FLG_CONSTTIME.
1460 [Matthew D Wood (Intel Corp)]
1462 *) In the SSL/TLS server implementation, be strict about session ID
1463 context matching (which matters if an application uses a single
1464 external cache for different purposes). Previously,
1465 out-of-context reuse was forbidden only if SSL_VERIFY_PEER was
1466 set. This did ensure strict client verification, but meant that,
1467 with applications using a single external cache for quite
1468 different requirements, clients could circumvent ciphersuite
1469 restrictions for a given session ID context by starting a session
1470 in a different context.
1473 *) Include "!eNULL" in SSL_DEFAULT_CIPHER_LIST to make sure that
1474 a ciphersuite string such as "DEFAULT:RSA" cannot enable
1475 authentication-only ciphersuites.
1478 *) Update the SSL_get_shared_ciphers() fix CVE-2006-3738 which was
1479 not complete and could lead to a possible single byte overflow
1480 (CVE-2007-5135) [Ben Laurie]
1482 Changes between 0.9.8d and 0.9.8e [23 Feb 2007]
1484 *) Since AES128 and AES256 (and similarly Camellia128 and
1485 Camellia256) share a single mask bit in the logic of
1486 ssl/ssl_ciph.c, the code for masking out disabled ciphers needs a
1487 kludge to work properly if AES128 is available and AES256 isn't
1488 (or if Camellia128 is available and Camellia256 isn't).
1491 *) Fix the BIT STRING encoding generated by crypto/ec/ec_asn1.c
1492 (within i2d_ECPrivateKey, i2d_ECPKParameters, i2d_ECParameters):
1493 When a point or a seed is encoded in a BIT STRING, we need to
1494 prevent the removal of trailing zero bits to get the proper DER
1495 encoding. (By default, crypto/asn1/a_bitstr.c assumes the case
1496 of a NamedBitList, for which trailing 0 bits need to be removed.)
1499 *) Have SSL/TLS server implementation tolerate "mismatched" record
1500 protocol version while receiving ClientHello even if the
1501 ClientHello is fragmented. (The server can't insist on the
1502 particular protocol version it has chosen before the ServerHello
1503 message has informed the client about his choice.)
1506 *) Add RFC 3779 support.
1507 [Rob Austein for ARIN, Ben Laurie]
1509 *) Load error codes if they are not already present instead of using a
1510 static variable. This allows them to be cleanly unloaded and reloaded.
1511 Improve header file function name parsing.
1514 *) extend SMTP and IMAP protocol emulation in s_client to use EHLO
1515 or CAPABILITY handshake as required by RFCs.
1518 Changes between 0.9.8c and 0.9.8d [28 Sep 2006]
1520 *) Introduce limits to prevent malicious keys being able to
1521 cause a denial of service. (CVE-2006-2940)
1522 [Steve Henson, Bodo Moeller]
1524 *) Fix ASN.1 parsing of certain invalid structures that can result
1525 in a denial of service. (CVE-2006-2937) [Steve Henson]
1527 *) Fix buffer overflow in SSL_get_shared_ciphers() function.
1528 (CVE-2006-3738) [Tavis Ormandy and Will Drewry, Google Security Team]
1530 *) Fix SSL client code which could crash if connecting to a
1531 malicious SSLv2 server. (CVE-2006-4343)
1532 [Tavis Ormandy and Will Drewry, Google Security Team]
1534 *) Since 0.9.8b, ciphersuite strings naming explicit ciphersuites
1535 match only those. Before that, "AES256-SHA" would be interpreted
1536 as a pattern and match "AES128-SHA" too (since AES128-SHA got
1537 the same strength classification in 0.9.7h) as we currently only
1538 have a single AES bit in the ciphersuite description bitmap.
1539 That change, however, also applied to ciphersuite strings such as
1540 "RC4-MD5" that intentionally matched multiple ciphersuites --
1541 namely, SSL 2.0 ciphersuites in addition to the more common ones
1542 from SSL 3.0/TLS 1.0.
1544 So we change the selection algorithm again: Naming an explicit
1545 ciphersuite selects this one ciphersuite, and any other similar
1546 ciphersuite (same bitmap) from *other* protocol versions.
1547 Thus, "RC4-MD5" again will properly select both the SSL 2.0
1548 ciphersuite and the SSL 3.0/TLS 1.0 ciphersuite.
1550 Since SSL 2.0 does not have any ciphersuites for which the
1551 128/256 bit distinction would be relevant, this works for now.
1552 The proper fix will be to use different bits for AES128 and
1553 AES256, which would have avoided the problems from the beginning;
1554 however, bits are scarce, so we can only do this in a new release
1555 (not just a patchlevel) when we can change the SSL_CIPHER
1556 definition to split the single 'unsigned long mask' bitmap into
1557 multiple values to extend the available space.
1561 Changes between 0.9.8b and 0.9.8c [05 Sep 2006]
1563 *) Avoid PKCS #1 v1.5 signature attack discovered by Daniel Bleichenbacher
1564 (CVE-2006-4339) [Ben Laurie and Google Security Team]
1566 *) Add AES IGE and biIGE modes.
1569 *) Change the Unix randomness entropy gathering to use poll() when
1570 possible instead of select(), since the latter has some
1571 undesirable limitations.
1572 [Darryl Miles via Richard Levitte and Bodo Moeller]
1574 *) Disable "ECCdraft" ciphersuites more thoroughly. Now special
1575 treatment in ssl/ssl_ciph.s makes sure that these ciphersuites
1576 cannot be implicitly activated as part of, e.g., the "AES" alias.
1577 However, please upgrade to OpenSSL 0.9.9[-dev] for
1578 non-experimental use of the ECC ciphersuites to get TLS extension
1579 support, which is required for curve and point format negotiation
1580 to avoid potential handshake problems.
1583 *) Disable rogue ciphersuites:
1585 - SSLv2 0x08 0x00 0x80 ("RC4-64-MD5")
1586 - SSLv3/TLSv1 0x00 0x61 ("EXP1024-RC2-CBC-MD5")
1587 - SSLv3/TLSv1 0x00 0x60 ("EXP1024-RC4-MD5")
1589 The latter two were purportedly from
1590 draft-ietf-tls-56-bit-ciphersuites-0[01].txt, but do not really
1593 Also deactivate the remaining ciphersuites from
1594 draft-ietf-tls-56-bit-ciphersuites-01.txt. These are just as
1595 unofficial, and the ID has long expired.
1598 *) Fix RSA blinding Heisenbug (problems sometimes occured on
1599 dual-core machines) and other potential thread-safety issues.
1602 *) Add the symmetric cipher Camellia (128-bit, 192-bit, 256-bit key
1603 versions), which is now available for royalty-free use
1604 (see http://info.isl.ntt.co.jp/crypt/eng/info/chiteki.html).
1605 Also, add Camellia TLS ciphersuites from RFC 4132.
1607 To minimize changes between patchlevels in the OpenSSL 0.9.8
1608 series, Camellia remains excluded from compilation unless OpenSSL
1609 is configured with 'enable-camellia'.
1612 *) Disable the padding bug check when compression is in use. The padding
1613 bug check assumes the first packet is of even length, this is not
1614 necessarily true if compresssion is enabled and can result in false
1615 positives causing handshake failure. The actual bug test is ancient
1616 code so it is hoped that implementations will either have fixed it by
1617 now or any which still have the bug do not support compression.
1620 Changes between 0.9.8a and 0.9.8b [04 May 2006]
1622 *) When applying a cipher rule check to see if string match is an explicit
1623 cipher suite and only match that one cipher suite if it is.
1626 *) Link in manifests for VC++ if needed.
1627 [Austin Ziegler <halostatue@gmail.com>]
1629 *) Update support for ECC-based TLS ciphersuites according to
1630 draft-ietf-tls-ecc-12.txt with proposed changes (but without
1631 TLS extensions, which are supported starting with the 0.9.9
1632 branch, not in the OpenSSL 0.9.8 branch).
1635 *) New functions EVP_CIPHER_CTX_new() and EVP_CIPHER_CTX_free() to support
1636 opaque EVP_CIPHER_CTX handling.
1639 *) Fixes and enhancements to zlib compression code. We now only use
1640 "zlib1.dll" and use the default __cdecl calling convention on Win32
1641 to conform with the standards mentioned here:
1642 http://www.zlib.net/DLL_FAQ.txt
1643 Static zlib linking now works on Windows and the new --with-zlib-include
1644 --with-zlib-lib options to Configure can be used to supply the location
1645 of the headers and library. Gracefully handle case where zlib library
1649 *) Several fixes and enhancements to the OID generation code. The old code
1650 sometimes allowed invalid OIDs (1.X for X >= 40 for example), couldn't
1651 handle numbers larger than ULONG_MAX, truncated printing and had a
1652 non standard OBJ_obj2txt() behaviour.
1655 *) Add support for building of engines under engine/ as shared libraries
1656 under VC++ build system.
1659 *) Corrected the numerous bugs in the Win32 path splitter in DSO.
1660 Hopefully, we will not see any false combination of paths any more.
1663 Changes between 0.9.8 and 0.9.8a [11 Oct 2005]
1665 *) Remove the functionality of SSL_OP_MSIE_SSLV2_RSA_PADDING
1666 (part of SSL_OP_ALL). This option used to disable the
1667 countermeasure against man-in-the-middle protocol-version
1668 rollback in the SSL 2.0 server implementation, which is a bad
1669 idea. (CVE-2005-2969)
1671 [Bodo Moeller; problem pointed out by Yutaka Oiwa (Research Center
1672 for Information Security, National Institute of Advanced Industrial
1673 Science and Technology [AIST], Japan)]
1675 *) Add two function to clear and return the verify parameter flags.
1678 *) Keep cipherlists sorted in the source instead of sorting them at
1679 runtime, thus removing the need for a lock.
1682 *) Avoid some small subgroup attacks in Diffie-Hellman.
1683 [Nick Mathewson and Ben Laurie]
1685 *) Add functions for well-known primes.
1688 *) Extended Windows CE support.
1689 [Satoshi Nakamura and Andy Polyakov]
1691 *) Initialize SSL_METHOD structures at compile time instead of during
1692 runtime, thus removing the need for a lock.
1695 *) Make PKCS7_decrypt() work even if no certificate is supplied by
1696 attempting to decrypt each encrypted key in turn. Add support to
1700 Changes between 0.9.7h and 0.9.8 [05 Jul 2005]
1702 [NB: OpenSSL 0.9.7i and later 0.9.7 patch levels were released after
1705 *) Add libcrypto.pc and libssl.pc for those who feel they need them.
1708 *) Change CA.sh and CA.pl so they don't bundle the CSR and the private
1709 key into the same file any more.
1712 *) Add initial support for Win64, both IA64 and AMD64/x64 flavors.
1715 *) Add -utf8 command line and config file option to 'ca'.
1716 [Stefan <stf@udoma.org]
1718 *) Removed the macro des_crypt(), as it seems to conflict with some
1719 libraries. Use DES_crypt().
1722 *) Correct naming of the 'chil' and '4758cca' ENGINEs. This
1723 involves renaming the source and generated shared-libs for
1724 both. The engines will accept the corrected or legacy ids
1725 ('ncipher' and '4758_cca' respectively) when binding. NB,
1726 this only applies when building 'shared'.
1727 [Corinna Vinschen <vinschen@redhat.com> and Geoff Thorpe]
1729 *) Add attribute functions to EVP_PKEY structure. Modify
1730 PKCS12_create() to recognize a CSP name attribute and
1731 use it. Make -CSP option work again in pkcs12 utility.
1734 *) Add new functionality to the bn blinding code:
1735 - automatic re-creation of the BN_BLINDING parameters after
1736 a fixed number of uses (currently 32)
1737 - add new function for parameter creation
1738 - introduce flags to control the update behaviour of the
1739 BN_BLINDING parameters
1740 - hide BN_BLINDING structure
1741 Add a second BN_BLINDING slot to the RSA structure to improve
1742 performance when a single RSA object is shared among several
1746 *) Add support for DTLS.
1747 [Nagendra Modadugu <nagendra@cs.stanford.edu> and Ben Laurie]
1749 *) Add support for DER encoded private keys (SSL_FILETYPE_ASN1)
1750 to SSL_CTX_use_PrivateKey_file() and SSL_use_PrivateKey_file()
1753 *) Remove buggy and incompletet DH cert support from
1754 ssl/ssl_rsa.c and ssl/s3_both.c
1757 *) Use SHA-1 instead of MD5 as the default digest algorithm for
1758 the apps/openssl applications.
1761 *) Compile clean with "-Wall -Wmissing-prototypes
1762 -Wstrict-prototypes -Wmissing-declarations -Werror". Currently
1763 DEBUG_SAFESTACK must also be set.
1766 *) Change ./Configure so that certain algorithms can be disabled by default.
1767 The new counterpiece to "no-xxx" is "enable-xxx".
1769 The patented RC5 and MDC2 algorithms will now be disabled unless
1770 "enable-rc5" and "enable-mdc2", respectively, are specified.
1772 (IDEA remains enabled despite being patented. This is because IDEA
1773 is frequently required for interoperability, and there is no license
1774 fee for non-commercial use. As before, "no-idea" can be used to
1775 avoid this algorithm.)
1779 *) Add processing of proxy certificates (see RFC 3820). This work was
1780 sponsored by KTH (The Royal Institute of Technology in Stockholm) and
1781 EGEE (Enabling Grids for E-science in Europe).
1784 *) RC4 performance overhaul on modern architectures/implementations, such
1785 as Intel P4, IA-64 and AMD64.
1788 *) New utility extract-section.pl. This can be used specify an alternative
1789 section number in a pod file instead of having to treat each file as
1790 a separate case in Makefile. This can be done by adding two lines to the
1793 =for comment openssl_section:XXX
1795 The blank line is mandatory.
1799 *) New arguments -certform, -keyform and -pass for s_client and s_server
1800 to allow alternative format key and certificate files and passphrase
1804 *) New structure X509_VERIFY_PARAM which combines current verify parameters,
1805 update associated structures and add various utility functions.
1807 Add new policy related verify parameters, include policy checking in
1808 standard verify code. Enhance 'smime' application with extra parameters
1809 to support policy checking and print out.
1812 *) Add a new engine to support VIA PadLock ACE extensions in the VIA C3
1813 Nehemiah processors. These extensions support AES encryption in hardware
1814 as well as RNG (though RNG support is currently disabled).
1815 [Michal Ludvig <michal@logix.cz>, with help from Andy Polyakov]
1817 *) Deprecate BN_[get|set]_params() functions (they were ignored internally).
1820 *) New FIPS 180-2 algorithms, SHA-224/-256/-384/-512 are implemented.
1821 [Andy Polyakov and a number of other people]
1823 *) Improved PowerPC platform support. Most notably BIGNUM assembler
1824 implementation contributed by IBM.
1825 [Suresh Chari, Peter Waltenberg, Andy Polyakov]
1827 *) The new 'RSA_generate_key_ex' function now takes a BIGNUM for the public
1828 exponent rather than 'unsigned long'. There is a corresponding change to
1829 the new 'rsa_keygen' element of the RSA_METHOD structure.
1830 [Jelte Jansen, Geoff Thorpe]
1832 *) Functionality for creating the initial serial number file is now
1833 moved from CA.pl to the 'ca' utility with a new option -create_serial.
1835 (Before OpenSSL 0.9.7e, CA.pl used to initialize the serial
1836 number file to 1, which is bound to cause problems. To avoid
1837 the problems while respecting compatibility between different 0.9.7
1838 patchlevels, 0.9.7e employed 'openssl x509 -next_serial' in
1839 CA.pl for serial number initialization. With the new release 0.9.8,
1840 we can fix the problem directly in the 'ca' utility.)
1843 *) Reduced header interdepencies by declaring more opaque objects in
1844 ossl_typ.h. As a consequence, including some headers (eg. engine.h) will
1845 give fewer recursive includes, which could break lazy source code - so
1846 this change is covered by the OPENSSL_NO_DEPRECATED symbol. As always,
1847 developers should define this symbol when building and using openssl to
1848 ensure they track the recommended behaviour, interfaces, [etc], but
1849 backwards-compatible behaviour prevails when this isn't defined.
1852 *) New function X509_POLICY_NODE_print() which prints out policy nodes.
1855 *) Add new EVP function EVP_CIPHER_CTX_rand_key and associated functionality.
1856 This will generate a random key of the appropriate length based on the
1857 cipher context. The EVP_CIPHER can provide its own random key generation
1858 routine to support keys of a specific form. This is used in the des and
1859 3des routines to generate a key of the correct parity. Update S/MIME
1860 code to use new functions and hence generate correct parity DES keys.
1861 Add EVP_CHECK_DES_KEY #define to return an error if the key is not
1862 valid (weak or incorrect parity).
1865 *) Add a local set of CRLs that can be used by X509_verify_cert() as well
1866 as looking them up. This is useful when the verified structure may contain
1867 CRLs, for example PKCS#7 signedData. Modify PKCS7_verify() to use any CRLs
1868 present unless the new PKCS7_NO_CRL flag is asserted.
1871 *) Extend ASN1 oid configuration module. It now additionally accepts the
1874 shortName = some long name, 1.2.3.4
1877 *) Reimplemented the BN_CTX implementation. There is now no more static
1878 limitation on the number of variables it can handle nor the depth of the
1879 "stack" handling for BN_CTX_start()/BN_CTX_end() pairs. The stack
1880 information can now expand as required, and rather than having a single
1881 static array of bignums, BN_CTX now uses a linked-list of such arrays
1882 allowing it to expand on demand whilst maintaining the usefulness of
1883 BN_CTX's "bundling".
1886 *) Add a missing BN_CTX parameter to the 'rsa_mod_exp' callback in RSA_METHOD
1887 to allow all RSA operations to function using a single BN_CTX.
1890 *) Preliminary support for certificate policy evaluation and checking. This
1891 is initially intended to pass the tests outlined in "Conformance Testing
1892 of Relying Party Client Certificate Path Processing Logic" v1.07.
1895 *) bn_dup_expand() has been deprecated, it was introduced in 0.9.7 and
1896 remained unused and not that useful. A variety of other little bignum
1897 tweaks and fixes have also been made continuing on from the audit (see
1901 *) Constify all or almost all d2i, c2i, s2i and r2i functions, along with
1902 associated ASN1, EVP and SSL functions and old ASN1 macros.
1905 *) BN_zero() only needs to set 'top' and 'neg' to zero for correct results,
1906 and this should never fail. So the return value from the use of
1907 BN_set_word() (which can fail due to needless expansion) is now deprecated;
1908 if OPENSSL_NO_DEPRECATED is defined, BN_zero() is a void macro.
1911 *) BN_CTX_get() should return zero-valued bignums, providing the same
1912 initialised value as BN_new().
1913 [Geoff Thorpe, suggested by Ulf Möller]
1915 *) Support for inhibitAnyPolicy certificate extension.
1918 *) An audit of the BIGNUM code is underway, for which debugging code is
1919 enabled when BN_DEBUG is defined. This makes stricter enforcements on what
1920 is considered valid when processing BIGNUMs, and causes execution to
1921 assert() when a problem is discovered. If BN_DEBUG_RAND is defined,
1922 further steps are taken to deliberately pollute unused data in BIGNUM
1923 structures to try and expose faulty code further on. For now, openssl will
1924 (in its default mode of operation) continue to tolerate the inconsistent
1925 forms that it has tolerated in the past, but authors and packagers should
1926 consider trying openssl and their own applications when compiled with
1927 these debugging symbols defined. It will help highlight potential bugs in
1928 their own code, and will improve the test coverage for OpenSSL itself. At
1929 some point, these tighter rules will become openssl's default to improve
1930 maintainability, though the assert()s and other overheads will remain only
1931 in debugging configurations. See bn.h for more details.
1932 [Geoff Thorpe, Nils Larsch, Ulf Möller]
1934 *) BN_CTX_init() has been deprecated, as BN_CTX is an opaque structure
1935 that can only be obtained through BN_CTX_new() (which implicitly
1936 initialises it). The presence of this function only made it possible
1937 to overwrite an existing structure (and cause memory leaks).
1940 *) Because of the callback-based approach for implementing LHASH as a
1941 template type, lh_insert() adds opaque objects to hash-tables and
1942 lh_doall() or lh_doall_arg() are typically used with a destructor callback
1943 to clean up those corresponding objects before destroying the hash table
1944 (and losing the object pointers). So some over-zealous constifications in
1945 LHASH have been relaxed so that lh_insert() does not take (nor store) the
1946 objects as "const" and the lh_doall[_arg] callback wrappers are not
1947 prototyped to have "const" restrictions on the object pointers they are
1948 given (and so aren't required to cast them away any more).
1951 *) The tmdiff.h API was so ugly and minimal that our own timing utility
1952 (speed) prefers to use its own implementation. The two implementations
1953 haven't been consolidated as yet (volunteers?) but the tmdiff API has had
1954 its object type properly exposed (MS_TM) instead of casting to/from "char
1955 *". This may still change yet if someone realises MS_TM and "ms_time_***"
1956 aren't necessarily the greatest nomenclatures - but this is what was used
1957 internally to the implementation so I've used that for now.
1960 *) Ensure that deprecated functions do not get compiled when
1961 OPENSSL_NO_DEPRECATED is defined. Some "openssl" subcommands and a few of
1962 the self-tests were still using deprecated key-generation functions so
1963 these have been updated also.
1966 *) Reorganise PKCS#7 code to separate the digest location functionality
1967 into PKCS7_find_digest(), digest addtion into PKCS7_bio_add_digest().
1968 New function PKCS7_set_digest() to set the digest type for PKCS#7
1969 digestedData type. Add additional code to correctly generate the
1970 digestedData type and add support for this type in PKCS7 initialization
1974 *) New function PKCS7_set0_type_other() this initializes a PKCS7
1975 structure of type "other".
1978 *) Fix prime generation loop in crypto/bn/bn_prime.pl by making
1979 sure the loop does correctly stop and breaking ("division by zero")
1980 modulus operations are not performed. The (pre-generated) prime
1981 table crypto/bn/bn_prime.h was already correct, but it could not be
1982 re-generated on some platforms because of the "division by zero"
1983 situation in the script.
1984 [Ralf S. Engelschall]
1986 *) Update support for ECC-based TLS ciphersuites according to
1987 draft-ietf-tls-ecc-03.txt: the KDF1 key derivation function with
1988 SHA-1 now is only used for "small" curves (where the
1989 representation of a field element takes up to 24 bytes); for
1990 larger curves, the field element resulting from ECDH is directly
1991 used as premaster secret.
1992 [Douglas Stebila (Sun Microsystems Laboratories)]
1994 *) Add code for kP+lQ timings to crypto/ec/ectest.c, and add SEC2
1995 curve secp160r1 to the tests.
1996 [Douglas Stebila (Sun Microsystems Laboratories)]
1998 *) Add the possibility to load symbols globally with DSO.
1999 [Götz Babin-Ebell <babin-ebell@trustcenter.de> via Richard Levitte]
2001 *) Add the functions ERR_set_mark() and ERR_pop_to_mark() for better
2002 control of the error stack.
2005 *) Add support for STORE in ENGINE.
2008 *) Add the STORE type. The intention is to provide a common interface
2009 to certificate and key stores, be they simple file-based stores, or
2010 HSM-type store, or LDAP stores, or...
2011 NOTE: The code is currently UNTESTED and isn't really used anywhere.
2014 *) Add a generic structure called OPENSSL_ITEM. This can be used to
2015 pass a list of arguments to any function as well as provide a way
2016 for a function to pass data back to the caller.
2019 *) Add the functions BUF_strndup() and BUF_memdup(). BUF_strndup()
2020 works like BUF_strdup() but can be used to duplicate a portion of
2021 a string. The copy gets NUL-terminated. BUF_memdup() duplicates
2025 *) Add the function sk_find_ex() which works like sk_find(), but will
2026 return an index to an element even if an exact match couldn't be
2027 found. The index is guaranteed to point at the element where the
2028 searched-for key would be inserted to preserve sorting order.
2031 *) Add the function OBJ_bsearch_ex() which works like OBJ_bsearch() but
2032 takes an extra flags argument for optional functionality. Currently,
2033 the following flags are defined:
2035 OBJ_BSEARCH_VALUE_ON_NOMATCH
2036 This one gets OBJ_bsearch_ex() to return a pointer to the first
2037 element where the comparing function returns a negative or zero
2040 OBJ_BSEARCH_FIRST_VALUE_ON_MATCH
2041 This one gets OBJ_bsearch_ex() to return a pointer to the first
2042 element where the comparing function returns zero. This is useful
2043 if there are more than one element where the comparing function
2047 *) Make it possible to create self-signed certificates with 'openssl ca'
2048 in such a way that the self-signed certificate becomes part of the
2049 CA database and uses the same mechanisms for serial number generation
2050 as all other certificate signing. The new flag '-selfsign' enables
2051 this functionality. Adapt CA.sh and CA.pl.in.
2054 *) Add functionality to check the public key of a certificate request
2055 against a given private. This is useful to check that a certificate
2056 request can be signed by that key (self-signing).
2059 *) Make it possible to have multiple active certificates with the same
2060 subject in the CA index file. This is done only if the keyword
2061 'unique_subject' is set to 'no' in the main CA section (default
2062 if 'CA_default') of the configuration file. The value is saved
2063 with the database itself in a separate index attribute file,
2064 named like the index file with '.attr' appended to the name.
2067 *) Generate muti valued AVAs using '+' notation in config files for
2071 *) Support for nameConstraints certificate extension.
2074 *) Support for policyConstraints certificate extension.
2077 *) Support for policyMappings certificate extension.
2080 *) Make sure the default DSA_METHOD implementation only uses its
2081 dsa_mod_exp() and/or bn_mod_exp() handlers if they are non-NULL,
2082 and change its own handlers to be NULL so as to remove unnecessary
2083 indirection. This lets alternative implementations fallback to the
2084 default implementation more easily.
2087 *) Support for directoryName in GeneralName related extensions
2091 *) Make it possible to link applications using Makefile.shared.
2092 Make that possible even when linking against static libraries!
2095 *) Support for single pass processing for S/MIME signing. This now
2096 means that S/MIME signing can be done from a pipe, in addition
2097 cleartext signing (multipart/signed type) is effectively streaming
2098 and the signed data does not need to be all held in memory.
2100 This is done with a new flag PKCS7_STREAM. When this flag is set
2101 PKCS7_sign() only initializes the PKCS7 structure and the actual signing
2102 is done after the data is output (and digests calculated) in
2103 SMIME_write_PKCS7().
2106 *) Add full support for -rpath/-R, both in shared libraries and
2107 applications, at least on the platforms where it's known how
2111 *) In crypto/ec/ec_mult.c, implement fast point multiplication with
2112 precomputation, based on wNAF splitting: EC_GROUP_precompute_mult()
2113 will now compute a table of multiples of the generator that
2114 makes subsequent invocations of EC_POINTs_mul() or EC_POINT_mul()
2115 faster (notably in the case of a single point multiplication,
2116 scalar * generator).
2117 [Nils Larsch, Bodo Moeller]
2119 *) IPv6 support for certificate extensions. The various extensions
2120 which use the IP:a.b.c.d can now take IPv6 addresses using the
2121 formats of RFC1884 2.2 . IPv6 addresses are now also displayed
2125 *) Added an ENGINE that implements RSA by performing private key
2126 exponentiations with the GMP library. The conversions to and from
2127 GMP's mpz_t format aren't optimised nor are any montgomery forms
2128 cached, and on x86 it appears OpenSSL's own performance has caught up.
2129 However there are likely to be other architectures where GMP could
2130 provide a boost. This ENGINE is not built in by default, but it can be
2131 specified at Configure time and should be accompanied by the necessary
2132 linker additions, eg;
2133 ./config -DOPENSSL_USE_GMP -lgmp
2136 *) "openssl engine" will not display ENGINE/DSO load failure errors when
2137 testing availability of engines with "-t" - the old behaviour is
2138 produced by increasing the feature's verbosity with "-tt".
2141 *) ECDSA routines: under certain error conditions uninitialized BN objects
2142 could be freed. Solution: make sure initialization is performed early
2143 enough. (Reported and fix supplied by Nils Larsch <nla@trustcenter.de>
2147 *) Key-generation can now be implemented in RSA_METHOD, DSA_METHOD
2148 and DH_METHOD (eg. by ENGINE implementations) to override the normal
2149 software implementations. For DSA and DH, parameter generation can
2150 also be overriden by providing the appropriate method callbacks.
2153 *) Change the "progress" mechanism used in key-generation and
2154 primality testing to functions that take a new BN_GENCB pointer in
2155 place of callback/argument pairs. The new API functions have "_ex"
2156 postfixes and the older functions are reimplemented as wrappers for
2157 the new ones. The OPENSSL_NO_DEPRECATED symbol can be used to hide
2158 declarations of the old functions to help (graceful) attempts to
2159 migrate to the new functions. Also, the new key-generation API
2160 functions operate on a caller-supplied key-structure and return
2161 success/failure rather than returning a key or NULL - this is to
2162 help make "keygen" another member function of RSA_METHOD etc.
2164 Example for using the new callback interface:
2166 int (*my_callback)(int a, int b, BN_GENCB *cb) = ...;
2170 BN_GENCB_set(&my_cb, my_callback, my_arg);
2172 return BN_is_prime_ex(some_bignum, BN_prime_checks, NULL, &cb);
2173 /* For the meaning of a, b in calls to my_callback(), see the
2174 * documentation of the function that calls the callback.
2175 * cb will point to my_cb; my_arg can be retrieved as cb->arg.
2176 * my_callback should return 1 if it wants BN_is_prime_ex()
2177 * to continue, or 0 to stop.
2182 *) Change the ZLIB compression method to be stateful, and make it
2183 available to TLS with the number defined in
2184 draft-ietf-tls-compression-04.txt.
2187 *) Add the ASN.1 structures and functions for CertificatePair, which
2188 is defined as follows (according to X.509_4thEditionDraftV6.pdf):
2190 CertificatePair ::= SEQUENCE {
2191 forward [0] Certificate OPTIONAL,
2192 reverse [1] Certificate OPTIONAL,
2193 -- at least one of the pair shall be present -- }
2195 Also implement the PEM functions to read and write certificate
2196 pairs, and defined the PEM tag as "CERTIFICATE PAIR".
2198 This needed to be defined, mostly for the sake of the LDAP
2199 attribute crossCertificatePair, but may prove useful elsewhere as
2203 *) Make it possible to inhibit symlinking of shared libraries in
2204 Makefile.shared, for Cygwin's sake.
2207 *) Extend the BIGNUM API by creating a function
2208 void BN_set_negative(BIGNUM *a, int neg);
2209 and a macro that behave like
2210 int BN_is_negative(const BIGNUM *a);
2212 to avoid the need to access 'a->neg' directly in applications.
2215 *) Implement fast modular reduction for pseudo-Mersenne primes
2216 used in NIST curves (crypto/bn/bn_nist.c, crypto/ec/ecp_nist.c).
2217 EC_GROUP_new_curve_GFp() will now automatically use this
2219 [Nils Larsch <nla@trustcenter.de>]
2221 *) Add new lock type (CRYPTO_LOCK_BN).
2224 *) Change the ENGINE framework to automatically load engines
2225 dynamically from specific directories unless they could be
2226 found to already be built in or loaded. Move all the
2227 current engines except for the cryptodev one to a new
2229 The engines in engines/ are built as shared libraries if
2230 the "shared" options was given to ./Configure or ./config.
2231 Otherwise, they are inserted in libcrypto.a.
2232 /usr/local/ssl/engines is the default directory for dynamic
2233 engines, but that can be overriden at configure time through
2234 the usual use of --prefix and/or --openssldir, and at run
2235 time with the environment variable OPENSSL_ENGINES.
2236 [Geoff Thorpe and Richard Levitte]
2238 *) Add Makefile.shared, a helper makefile to build shared
2239 libraries. Addapt Makefile.org.
2242 *) Add version info to Win32 DLLs.
2243 [Peter 'Luna' Runestig" <peter@runestig.com>]
2245 *) Add new 'medium level' PKCS#12 API. Certificates and keys
2246 can be added using this API to created arbitrary PKCS#12
2247 files while avoiding the low level API.
2249 New options to PKCS12_create(), key or cert can be NULL and
2250 will then be omitted from the output file. The encryption
2251 algorithm NIDs can be set to -1 for no encryption, the mac
2252 iteration count can be set to 0 to omit the mac.
2254 Enhance pkcs12 utility by making the -nokeys and -nocerts
2255 options work when creating a PKCS#12 file. New option -nomac
2256 to omit the mac, NONE can be set for an encryption algorithm.
2257 New code is modified to use the enhanced PKCS12_create()
2258 instead of the low level API.
2261 *) Extend ASN1 encoder to support indefinite length constructed
2262 encoding. This can output sequences tags and octet strings in
2263 this form. Modify pk7_asn1.c to support indefinite length
2264 encoding. This is experimental and needs additional code to
2265 be useful, such as an ASN1 bio and some enhanced streaming
2268 Extend template encode functionality so that tagging is passed
2269 down to the template encoder.
2272 *) Let 'openssl req' fail if an argument to '-newkey' is not
2273 recognized instead of using RSA as a default.
2276 *) Add support for ECC-based ciphersuites from draft-ietf-tls-ecc-01.txt.
2277 As these are not official, they are not included in "ALL";
2278 the "ECCdraft" ciphersuite group alias can be used to select them.
2279 [Vipul Gupta and Sumit Gupta (Sun Microsystems Laboratories)]
2281 *) Add ECDH engine support.
2282 [Nils Gura and Douglas Stebila (Sun Microsystems Laboratories)]
2284 *) Add ECDH in new directory crypto/ecdh/.
2285 [Douglas Stebila (Sun Microsystems Laboratories)]
2287 *) Let BN_rand_range() abort with an error after 100 iterations
2288 without success (which indicates a broken PRNG).
2291 *) Change BN_mod_sqrt() so that it verifies that the input value
2292 is really the square of the return value. (Previously,
2293 BN_mod_sqrt would show GIGO behaviour.)
2296 *) Add named elliptic curves over binary fields from X9.62, SECG,
2297 and WAP/WTLS; add OIDs that were still missing.
2299 [Sheueling Chang Shantz and Douglas Stebila
2300 (Sun Microsystems Laboratories)]
2302 *) Extend the EC library for elliptic curves over binary fields
2303 (new files ec2_smpl.c, ec2_smpt.c, ec2_mult.c in crypto/ec/).
2306 EC_GF2m_simple_method
2310 EC_GROUP_new_curve_GF2m
2311 EC_GROUP_set_curve_GF2m
2312 EC_GROUP_get_curve_GF2m
2313 EC_POINT_set_affine_coordinates_GF2m
2314 EC_POINT_get_affine_coordinates_GF2m
2315 EC_POINT_set_compressed_coordinates_GF2m
2317 Point compression for binary fields is disabled by default for
2318 patent reasons (compile with OPENSSL_EC_BIN_PT_COMP defined to
2321 As binary polynomials are represented as BIGNUMs, various members
2322 of the EC_GROUP and EC_POINT data structures can be shared
2323 between the implementations for prime fields and binary fields;
2324 the above ..._GF2m functions (except for EX_GROUP_new_curve_GF2m)
2325 are essentially identical to their ..._GFp counterparts.
2326 (For simplicity, the '..._GFp' prefix has been dropped from
2327 various internal method names.)
2329 An internal 'field_div' method (similar to 'field_mul' and
2330 'field_sqr') has been added; this is used only for binary fields.
2332 [Sheueling Chang Shantz and Douglas Stebila
2333 (Sun Microsystems Laboratories)]
2335 *) Optionally dispatch EC_POINT_mul(), EC_POINT_precompute_mult()
2336 through methods ('mul', 'precompute_mult').
2338 The generic implementations (now internally called 'ec_wNAF_mul'
2339 and 'ec_wNAF_precomputed_mult') remain the default if these
2340 methods are undefined.
2342 [Sheueling Chang Shantz and Douglas Stebila
2343 (Sun Microsystems Laboratories)]
2345 *) New function EC_GROUP_get_degree, which is defined through
2346 EC_METHOD. For curves over prime fields, this returns the bit
2347 length of the modulus.
2349 [Sheueling Chang Shantz and Douglas Stebila
2350 (Sun Microsystems Laboratories)]
2352 *) New functions EC_GROUP_dup, EC_POINT_dup.
2353 (These simply call ..._new and ..._copy).
2355 [Sheueling Chang Shantz and Douglas Stebila
2356 (Sun Microsystems Laboratories)]
2358 *) Add binary polynomial arithmetic software in crypto/bn/bn_gf2m.c.
2359 Polynomials are represented as BIGNUMs (where the sign bit is not
2360 used) in the following functions [macros]:
2363 BN_GF2m_sub [= BN_GF2m_add]
2364 BN_GF2m_mod [wrapper for BN_GF2m_mod_arr]
2365 BN_GF2m_mod_mul [wrapper for BN_GF2m_mod_mul_arr]
2366 BN_GF2m_mod_sqr [wrapper for BN_GF2m_mod_sqr_arr]
2368 BN_GF2m_mod_exp [wrapper for BN_GF2m_mod_exp_arr]
2369 BN_GF2m_mod_sqrt [wrapper for BN_GF2m_mod_sqrt_arr]
2370 BN_GF2m_mod_solve_quad [wrapper for BN_GF2m_mod_solve_quad_arr]
2371 BN_GF2m_cmp [= BN_ucmp]
2373 (Note that only the 'mod' functions are actually for fields GF(2^m).
2374 BN_GF2m_add() is misnomer, but this is for the sake of consistency.)
2376 For some functions, an the irreducible polynomial defining a
2377 field can be given as an 'unsigned int[]' with strictly
2378 decreasing elements giving the indices of those bits that are set;
2379 i.e., p[] represents the polynomial
2380 f(t) = t^p[0] + t^p[1] + ... + t^p[k]
2382 p[0] > p[1] > ... > p[k] = 0.
2383 This applies to the following functions:
2388 BN_GF2m_mod_inv_arr [wrapper for BN_GF2m_mod_inv]
2389 BN_GF2m_mod_div_arr [wrapper for BN_GF2m_mod_div]
2391 BN_GF2m_mod_sqrt_arr
2392 BN_GF2m_mod_solve_quad_arr
2396 Conversion can be performed by the following functions:
2401 bntest.c has additional tests for binary polynomial arithmetic.
2403 Two implementations for BN_GF2m_mod_div() are available.
2404 The default algorithm simply uses BN_GF2m_mod_inv() and
2405 BN_GF2m_mod_mul(). The alternative algorithm is compiled in only
2406 if OPENSSL_SUN_GF2M_DIV is defined (patent pending; read the
2407 copyright notice in crypto/bn/bn_gf2m.c before enabling it).
2409 [Sheueling Chang Shantz and Douglas Stebila
2410 (Sun Microsystems Laboratories)]
2412 *) Add new error code 'ERR_R_DISABLED' that can be used when some
2413 functionality is disabled at compile-time.
2414 [Douglas Stebila <douglas.stebila@sun.com>]
2416 *) Change default behaviour of 'openssl asn1parse' so that more
2417 information is visible when viewing, e.g., a certificate:
2419 Modify asn1_parse2 (crypto/asn1/asn1_par.c) so that in non-'dump'
2420 mode the content of non-printable OCTET STRINGs is output in a
2421 style similar to INTEGERs, but with '[HEX DUMP]' prepended to
2422 avoid the appearance of a printable string.
2423 [Nils Larsch <nla@trustcenter.de>]
2425 *) Add 'asn1_flag' and 'asn1_form' member to EC_GROUP with access
2427 EC_GROUP_set_asn1_flag()
2428 EC_GROUP_get_asn1_flag()
2429 EC_GROUP_set_point_conversion_form()
2430 EC_GROUP_get_point_conversion_form()
2431 These control ASN1 encoding details:
2432 - Curves (i.e., groups) are encoded explicitly unless asn1_flag
2433 has been set to OPENSSL_EC_NAMED_CURVE.
2434 - Points are encoded in uncompressed form by default; options for
2435 asn1_for are as for point2oct, namely
2436 POINT_CONVERSION_COMPRESSED
2437 POINT_CONVERSION_UNCOMPRESSED
2438 POINT_CONVERSION_HYBRID
2440 Also add 'seed' and 'seed_len' members to EC_GROUP with access
2443 EC_GROUP_get0_seed()
2444 EC_GROUP_get_seed_len()
2445 This is used only for ASN1 purposes (so far).
2446 [Nils Larsch <nla@trustcenter.de>]
2448 *) Add 'field_type' member to EC_METHOD, which holds the NID
2449 of the appropriate field type OID. The new function
2450 EC_METHOD_get_field_type() returns this value.
2451 [Nils Larsch <nla@trustcenter.de>]
2456 EC_POINT_point2hex()
2457 EC_POINT_hex2point()
2458 providing useful interfaces to EC_POINT_point2oct() and
2459 EC_POINT_oct2point().
2460 [Nils Larsch <nla@trustcenter.de>]
2462 *) Change internals of the EC library so that the functions
2463 EC_GROUP_set_generator()
2464 EC_GROUP_get_generator()
2465 EC_GROUP_get_order()
2466 EC_GROUP_get_cofactor()
2467 are implemented directly in crypto/ec/ec_lib.c and not dispatched
2468 to methods, which would lead to unnecessary code duplication when
2469 adding different types of curves.
2470 [Nils Larsch <nla@trustcenter.de> with input by Bodo Moeller]
2472 *) Implement compute_wNAF (crypto/ec/ec_mult.c) without BIGNUM
2473 arithmetic, and such that modified wNAFs are generated
2474 (which avoid length expansion in many cases).
2477 *) Add a function EC_GROUP_check_discriminant() (defined via
2478 EC_METHOD) that verifies that the curve discriminant is non-zero.
2480 Add a function EC_GROUP_check() that makes some sanity tests
2481 on a EC_GROUP, its generator and order. This includes
2482 EC_GROUP_check_discriminant().
2483 [Nils Larsch <nla@trustcenter.de>]
2485 *) Add ECDSA in new directory crypto/ecdsa/.
2487 Add applications 'openssl ecparam' and 'openssl ecdsa'
2488 (these are based on 'openssl dsaparam' and 'openssl dsa').
2490 ECDSA support is also included in various other files across the
2491 library. Most notably,
2492 - 'openssl req' now has a '-newkey ecdsa:file' option;
2493 - EVP_PKCS82PKEY (crypto/evp/evp_pkey.c) now can handle ECDSA;
2494 - X509_PUBKEY_get (crypto/asn1/x_pubkey.c) and
2495 d2i_PublicKey (crypto/asn1/d2i_pu.c) have been modified to make
2496 them suitable for ECDSA where domain parameters must be
2497 extracted before the specific public key;
2498 - ECDSA engine support has been added.
2499 [Nils Larsch <nla@trustcenter.de>]
2501 *) Include some named elliptic curves, and add OIDs from X9.62,
2502 SECG, and WAP/WTLS. Each curve can be obtained from the new
2504 EC_GROUP_new_by_curve_name(),
2505 and the list of available named curves can be obtained with
2506 EC_get_builtin_curves().
2507 Also add a 'curve_name' member to EC_GROUP objects, which can be
2509 EC_GROUP_set_curve_name()
2510 EC_GROUP_get_curve_name()
2511 [Nils Larsch <larsch@trustcenter.de, Bodo Moeller]
2513 *) Remove a few calls to bn_wexpand() in BN_sqr() (the one in there
2514 was actually never needed) and in BN_mul(). The removal in BN_mul()
2515 required a small change in bn_mul_part_recursive() and the addition
2516 of the functions bn_cmp_part_words(), bn_sub_part_words() and
2517 bn_add_part_words(), which do the same thing as bn_cmp_words(),
2518 bn_sub_words() and bn_add_words() except they take arrays with
2522 Changes between 0.9.7l and 0.9.7m [23 Feb 2007]
2524 *) Cleanse PEM buffers before freeing them since they may contain
2526 [Benjamin Bennett <ben@psc.edu>]
2528 *) Include "!eNULL" in SSL_DEFAULT_CIPHER_LIST to make sure that
2529 a ciphersuite string such as "DEFAULT:RSA" cannot enable
2530 authentication-only ciphersuites.
2533 *) Since AES128 and AES256 share a single mask bit in the logic of
2534 ssl/ssl_ciph.c, the code for masking out disabled ciphers needs a
2535 kludge to work properly if AES128 is available and AES256 isn't.
2538 *) Expand security boundary to match 1.1.1 module.
2541 *) Remove redundant features: hash file source, editing of test vectors
2542 modify fipsld to use external fips_premain.c signature.
2545 *) New perl script mkfipsscr.pl to create shell scripts or batch files to
2546 run algorithm test programs.
2549 *) Make algorithm test programs more tolerant of whitespace.
2552 *) Have SSL/TLS server implementation tolerate "mismatched" record
2553 protocol version while receiving ClientHello even if the
2554 ClientHello is fragmented. (The server can't insist on the
2555 particular protocol version it has chosen before the ServerHello
2556 message has informed the client about his choice.)
2559 *) Load error codes if they are not already present instead of using a
2560 static variable. This allows them to be cleanly unloaded and reloaded.
2563 Changes between 0.9.7k and 0.9.7l [28 Sep 2006]
2565 *) Introduce limits to prevent malicious keys being able to
2566 cause a denial of service. (CVE-2006-2940)
2567 [Steve Henson, Bodo Moeller]
2569 *) Fix ASN.1 parsing of certain invalid structures that can result
2570 in a denial of service. (CVE-2006-2937) [Steve Henson]
2572 *) Fix buffer overflow in SSL_get_shared_ciphers() function.
2573 (CVE-2006-3738) [Tavis Ormandy and Will Drewry, Google Security Team]
2575 *) Fix SSL client code which could crash if connecting to a
2576 malicious SSLv2 server. (CVE-2006-4343)
2577 [Tavis Ormandy and Will Drewry, Google Security Team]
2579 *) Change ciphersuite string processing so that an explicit
2580 ciphersuite selects this one ciphersuite (so that "AES256-SHA"
2581 will no longer include "AES128-SHA"), and any other similar
2582 ciphersuite (same bitmap) from *other* protocol versions (so that
2583 "RC4-MD5" will still include both the SSL 2.0 ciphersuite and the
2584 SSL 3.0/TLS 1.0 ciphersuite). This is a backport combining
2585 changes from 0.9.8b and 0.9.8d.
2588 Changes between 0.9.7j and 0.9.7k [05 Sep 2006]
2590 *) Avoid PKCS #1 v1.5 signature attack discovered by Daniel Bleichenbacher
2591 (CVE-2006-4339) [Ben Laurie and Google Security Team]
2593 *) Change the Unix randomness entropy gathering to use poll() when
2594 possible instead of select(), since the latter has some
2595 undesirable limitations.
2596 [Darryl Miles via Richard Levitte and Bodo Moeller]
2598 *) Disable rogue ciphersuites:
2600 - SSLv2 0x08 0x00 0x80 ("RC4-64-MD5")
2601 - SSLv3/TLSv1 0x00 0x61 ("EXP1024-RC2-CBC-MD5")
2602 - SSLv3/TLSv1 0x00 0x60 ("EXP1024-RC4-MD5")
2604 The latter two were purportedly from
2605 draft-ietf-tls-56-bit-ciphersuites-0[01].txt, but do not really
2608 Also deactive the remaining ciphersuites from
2609 draft-ietf-tls-56-bit-ciphersuites-01.txt. These are just as
2610 unofficial, and the ID has long expired.
2613 *) Fix RSA blinding Heisenbug (problems sometimes occured on
2614 dual-core machines) and other potential thread-safety issues.
2617 Changes between 0.9.7i and 0.9.7j [04 May 2006]
2619 *) Adapt fipsld and the build system to link against the validated FIPS
2620 module in FIPS mode.
2623 *) Fixes for VC++ 2005 build under Windows.
2626 *) Add new Windows build target VC-32-GMAKE for VC++. This uses GNU make
2627 from a Windows bash shell such as MSYS. It is autodetected from the
2628 "config" script when run from a VC++ environment. Modify standard VC++
2629 build to use fipscanister.o from the GNU make build.
2632 Changes between 0.9.7h and 0.9.7i [14 Oct 2005]
2634 *) Wrapped the definition of EVP_MAX_MD_SIZE in a #ifdef OPENSSL_FIPS.
2635 The value now differs depending on if you build for FIPS or not.
2636 BEWARE! A program linked with a shared FIPSed libcrypto can't be
2637 safely run with a non-FIPSed libcrypto, as it may crash because of
2638 the difference induced by this change.
2641 Changes between 0.9.7g and 0.9.7h [11 Oct 2005]
2643 *) Remove the functionality of SSL_OP_MSIE_SSLV2_RSA_PADDING
2644 (part of SSL_OP_ALL). This option used to disable the
2645 countermeasure against man-in-the-middle protocol-version
2646 rollback in the SSL 2.0 server implementation, which is a bad
2647 idea. (CVE-2005-2969)
2649 [Bodo Moeller; problem pointed out by Yutaka Oiwa (Research Center
2650 for Information Security, National Institute of Advanced Industrial
2651 Science and Technology [AIST], Japan)]
2653 *) Minimal support for X9.31 signatures and PSS padding modes. This is
2654 mainly for FIPS compliance and not fully integrated at this stage.
2657 *) For DSA signing, unless DSA_FLAG_NO_EXP_CONSTTIME is set, perform
2658 the exponentiation using a fixed-length exponent. (Otherwise,
2659 the information leaked through timing could expose the secret key
2660 after many signatures; cf. Bleichenbacher's attack on DSA with
2664 *) Make a new fixed-window mod_exp implementation the default for
2665 RSA, DSA, and DH private-key operations so that the sequence of
2666 squares and multiplies and the memory access pattern are
2667 independent of the particular secret key. This will mitigate
2668 cache-timing and potential related attacks.
2670 BN_mod_exp_mont_consttime() is the new exponentiation implementation,
2671 and this is automatically used by BN_mod_exp_mont() if the new flag
2672 BN_FLG_EXP_CONSTTIME is set for the exponent. RSA, DSA, and DH
2673 will use this BN flag for private exponents unless the flag
2674 RSA_FLAG_NO_EXP_CONSTTIME, DSA_FLAG_NO_EXP_CONSTTIME, or
2675 DH_FLAG_NO_EXP_CONSTTIME, respectively, is set.
2677 [Matthew D Wood (Intel Corp), with some changes by Bodo Moeller]
2679 *) Change the client implementation for SSLv23_method() and
2680 SSLv23_client_method() so that is uses the SSL 3.0/TLS 1.0
2681 Client Hello message format if the SSL_OP_NO_SSLv2 option is set.
2682 (Previously, the SSL 2.0 backwards compatible Client Hello
2683 message format would be used even with SSL_OP_NO_SSLv2.)
2686 *) Add support for smime-type MIME parameter in S/MIME messages which some
2690 *) New function BN_MONT_CTX_set_locked() to set montgomery parameters in
2691 a threadsafe manner. Modify rsa code to use new function and add calls
2692 to dsa and dh code (which had race conditions before).
2695 *) Include the fixed error library code in the C error file definitions
2696 instead of fixing them up at runtime. This keeps the error code
2697 structures constant.
2700 Changes between 0.9.7f and 0.9.7g [11 Apr 2005]
2702 [NB: OpenSSL 0.9.7h and later 0.9.7 patch levels were released after
2705 *) Fixes for newer kerberos headers. NB: the casts are needed because
2706 the 'length' field is signed on one version and unsigned on another
2707 with no (?) obvious way to tell the difference, without these VC++
2708 complains. Also the "definition" of FAR (blank) is no longer included
2709 nor is the error ENOMEM. KRB5_PRIVATE has to be set to 1 to pick up
2710 some needed definitions.
2713 *) Undo Cygwin change.
2716 *) Added support for proxy certificates according to RFC 3820.
2717 Because they may be a security thread to unaware applications,
2718 they must be explicitely allowed in run-time. See
2719 docs/HOWTO/proxy_certificates.txt for further information.
2722 Changes between 0.9.7e and 0.9.7f [22 Mar 2005]
2724 *) Use (SSL_RANDOM_VALUE - 4) bytes of pseudo random data when generating
2725 server and client random values. Previously
2726 (SSL_RANDOM_VALUE - sizeof(time_t)) would be used which would result in
2727 less random data when sizeof(time_t) > 4 (some 64 bit platforms).
2729 This change has negligible security impact because:
2731 1. Server and client random values still have 24 bytes of pseudo random
2734 2. Server and client random values are sent in the clear in the initial
2737 3. The master secret is derived using the premaster secret (48 bytes in
2738 size for static RSA ciphersuites) as well as client server and random
2741 The OpenSSL team would like to thank the UK NISCC for bringing this issue
2744 [Stephen Henson, reported by UK NISCC]
2746 *) Use Windows randomness collection on Cygwin.
2749 *) Fix hang in EGD/PRNGD query when communication socket is closed
2750 prematurely by EGD/PRNGD.
2751 [Darren Tucker <dtucker@zip.com.au> via Lutz Jänicke, resolves #1014]
2753 *) Prompt for pass phrases when appropriate for PKCS12 input format.
2756 *) Back-port of selected performance improvements from development
2757 branch, as well as improved support for PowerPC platforms.
2760 *) Add lots of checks for memory allocation failure, error codes to indicate
2761 failure and freeing up memory if a failure occurs.
2762 [Nauticus Networks SSL Team <openssl@nauticusnet.com>, Steve Henson]
2764 *) Add new -passin argument to dgst.
2767 *) Perform some character comparisons of different types in X509_NAME_cmp:
2768 this is needed for some certificates that reencode DNs into UTF8Strings
2769 (in violation of RFC3280) and can't or wont issue name rollover
2773 *) Make an explicit check during certificate validation to see that
2774 the CA setting in each certificate on the chain is correct. As a
2775 side effect always do the following basic checks on extensions,
2776 not just when there's an associated purpose to the check:
2778 - if there is an unhandled critical extension (unless the user
2779 has chosen to ignore this fault)
2780 - if the path length has been exceeded (if one is set at all)
2781 - that certain extensions fit the associated purpose (if one has
2785 Changes between 0.9.7d and 0.9.7e [25 Oct 2004]
2787 *) Avoid a race condition when CRLs are checked in a multi threaded
2788 environment. This would happen due to the reordering of the revoked
2789 entries during signature checking and serial number lookup. Now the
2790 encoding is cached and the serial number sort performed under a lock.
2791 Add new STACK function sk_is_sorted().
2794 *) Add Delta CRL to the extension code.
2797 *) Various fixes to s3_pkt.c so alerts are sent properly.
2798 [David Holmes <d.holmes@f5.com>]
2800 *) Reduce the chances of duplicate issuer name and serial numbers (in
2801 violation of RFC3280) using the OpenSSL certificate creation utilities.
2802 This is done by creating a random 64 bit value for the initial serial
2803 number when a serial number file is created or when a self signed
2804 certificate is created using 'openssl req -x509'. The initial serial
2805 number file is created using 'openssl x509 -next_serial' in CA.pl
2806 rather than being initialized to 1.
2809 Changes between 0.9.7c and 0.9.7d [17 Mar 2004]
2811 *) Fix null-pointer assignment in do_change_cipher_spec() revealed
2812 by using the Codenomicon TLS Test Tool (CVE-2004-0079)
2813 [Joe Orton, Steve Henson]
2815 *) Fix flaw in SSL/TLS handshaking when using Kerberos ciphersuites
2817 [Joe Orton, Steve Henson]
2819 *) Make it possible to have multiple active certificates with the same
2820 subject in the CA index file. This is done only if the keyword
2821 'unique_subject' is set to 'no' in the main CA section (default
2822 if 'CA_default') of the configuration file. The value is saved
2823 with the database itself in a separate index attribute file,
2824 named like the index file with '.attr' appended to the name.
2827 *) X509 verify fixes. Disable broken certificate workarounds when
2828 X509_V_FLAGS_X509_STRICT is set. Check CRL issuer has cRLSign set if
2829 keyUsage extension present. Don't accept CRLs with unhandled critical
2830 extensions: since verify currently doesn't process CRL extensions this
2831 rejects a CRL with *any* critical extensions. Add new verify error codes
2835 *) When creating an OCSP nonce use an OCTET STRING inside the extnValue.
2836 A clarification of RFC2560 will require the use of OCTET STRINGs and
2837 some implementations cannot handle the current raw format. Since OpenSSL
2838 copies and compares OCSP nonces as opaque blobs without any attempt at
2839 parsing them this should not create any compatibility issues.
2842 *) New md flag EVP_MD_CTX_FLAG_REUSE this allows md_data to be reused when
2843 calling EVP_MD_CTX_copy_ex() to avoid calling OPENSSL_malloc(). Without
2844 this HMAC (and other) operations are several times slower than OpenSSL
2848 *) Print out GeneralizedTime and UTCTime in ASN1_STRING_print_ex().
2849 [Peter Sylvester <Peter.Sylvester@EdelWeb.fr>]
2851 *) Use the correct content when signing type "other".
2854 Changes between 0.9.7b and 0.9.7c [30 Sep 2003]
2856 *) Fix various bugs revealed by running the NISCC test suite:
2858 Stop out of bounds reads in the ASN1 code when presented with
2859 invalid tags (CVE-2003-0543 and CVE-2003-0544).
2861 Free up ASN1_TYPE correctly if ANY type is invalid (CVE-2003-0545).
2863 If verify callback ignores invalid public key errors don't try to check
2864 certificate signature with the NULL public key.
2868 *) New -ignore_err option in ocsp application to stop the server
2869 exiting on the first error in a request.
2872 *) In ssl3_accept() (ssl/s3_srvr.c) only accept a client certificate
2873 if the server requested one: as stated in TLS 1.0 and SSL 3.0
2877 *) In ssl3_get_client_hello() (ssl/s3_srvr.c), tolerate additional
2878 extra data after the compression methods not only for TLS 1.0
2879 but also for SSL 3.0 (as required by the specification).
2880 [Bodo Moeller; problem pointed out by Matthias Loepfe]
2882 *) Change X509_certificate_type() to mark the key as exported/exportable
2883 when it's 512 *bits* long, not 512 bytes.
2886 *) Change AES_cbc_encrypt() so it outputs exact multiple of
2887 blocks during encryption.
2890 *) Various fixes to base64 BIO and non blocking I/O. On write
2891 flushes were not handled properly if the BIO retried. On read
2892 data was not being buffered properly and had various logic bugs.
2893 This also affects blocking I/O when the data being decoded is a
2897 *) Various S/MIME bugfixes and compatibility changes:
2898 output correct application/pkcs7 MIME type if
2899 PKCS7_NOOLDMIMETYPE is set. Tolerate some broken signatures.
2900 Output CR+LF for EOL if PKCS7_CRLFEOL is set (this makes opening
2901 of files as .eml work). Correctly handle very long lines in MIME
2905 Changes between 0.9.7a and 0.9.7b [10 Apr 2003]
2907 *) Countermeasure against the Klima-Pokorny-Rosa extension of
2908 Bleichbacher's attack on PKCS #1 v1.5 padding: treat
2909 a protocol version number mismatch like a decryption error
2910 in ssl3_get_client_key_exchange (ssl/s3_srvr.c).
2913 *) Turn on RSA blinding by default in the default implementation
2914 to avoid a timing attack. Applications that don't want it can call
2915 RSA_blinding_off() or use the new flag RSA_FLAG_NO_BLINDING.
2916 They would be ill-advised to do so in most cases.
2917 [Ben Laurie, Steve Henson, Geoff Thorpe, Bodo Moeller]
2919 *) Change RSA blinding code so that it works when the PRNG is not
2920 seeded (in this case, the secret RSA exponent is abused as
2921 an unpredictable seed -- if it is not unpredictable, there
2922 is no point in blinding anyway). Make RSA blinding thread-safe
2923 by remembering the creator's thread ID in rsa->blinding and
2924 having all other threads use local one-time blinding factors
2925 (this requires more computation than sharing rsa->blinding, but
2926 avoids excessive locking; and if an RSA object is not shared
2927 between threads, blinding will still be very fast).
2930 *) Fixed a typo bug that would cause ENGINE_set_default() to set an
2931 ENGINE as defaults for all supported algorithms irrespective of
2932 the 'flags' parameter. 'flags' is now honoured, so applications
2933 should make sure they are passing it correctly.
2936 *) Target "mingw" now allows native Windows code to be generated in
2937 the Cygwin environment as well as with the MinGW compiler.
2940 Changes between 0.9.7 and 0.9.7a [19 Feb 2003]
2942 *) In ssl3_get_record (ssl/s3_pkt.c), minimize information leaked
2943 via timing by performing a MAC computation even if incorrrect
2944 block cipher padding has been found. This is a countermeasure
2945 against active attacks where the attacker has to distinguish
2946 between bad padding and a MAC verification error. (CVE-2003-0078)
2948 [Bodo Moeller; problem pointed out by Brice Canvel (EPFL),
2949 Alain Hiltgen (UBS), Serge Vaudenay (EPFL), and
2950 Martin Vuagnoux (EPFL, Ilion)]
2952 *) Make the no-err option work as intended. The intention with no-err
2953 is not to have the whole error stack handling routines removed from
2954 libcrypto, it's only intended to remove all the function name and
2955 reason texts, thereby removing some of the footprint that may not
2956 be interesting if those errors aren't displayed anyway.
2958 NOTE: it's still possible for any application or module to have it's
2959 own set of error texts inserted. The routines are there, just not
2960 used by default when no-err is given.
2963 *) Add support for FreeBSD on IA64.
2964 [dirk.meyer@dinoex.sub.org via Richard Levitte, resolves #454]
2966 *) Adjust DES_cbc_cksum() so it returns the same value as the MIT
2967 Kerberos function mit_des_cbc_cksum(). Before this change,
2968 the value returned by DES_cbc_cksum() was like the one from
2969 mit_des_cbc_cksum(), except the bytes were swapped.
2970 [Kevin Greaney <Kevin.Greaney@hp.com> and Richard Levitte]
2972 *) Allow an application to disable the automatic SSL chain building.
2973 Before this a rather primitive chain build was always performed in
2974 ssl3_output_cert_chain(): an application had no way to send the
2975 correct chain if the automatic operation produced an incorrect result.
2977 Now the chain builder is disabled if either:
2979 1. Extra certificates are added via SSL_CTX_add_extra_chain_cert().
2981 2. The mode flag SSL_MODE_NO_AUTO_CHAIN is set.
2983 The reasoning behind this is that an application would not want the
2984 auto chain building to take place if extra chain certificates are
2985 present and it might also want a means of sending no additional
2986 certificates (for example the chain has two certificates and the
2990 *) Add the possibility to build without the ENGINE framework.
2991 [Steven Reddie <smr@essemer.com.au> via Richard Levitte]
2993 *) Under Win32 gmtime() can return NULL: check return value in
2994 OPENSSL_gmtime(). Add error code for case where gmtime() fails.
2997 *) DSA routines: under certain error conditions uninitialized BN objects
2998 could be freed. Solution: make sure initialization is performed early
2999 enough. (Reported and fix supplied by Ivan D Nestlerode <nestler@MIT.EDU>,
3000 Nils Larsch <nla@trustcenter.de> via PR#459)
3003 *) Another fix for SSLv2 session ID handling: the session ID was incorrectly
3004 checked on reconnect on the client side, therefore session resumption
3005 could still fail with a "ssl session id is different" error. This
3006 behaviour is masked when SSL_OP_ALL is used due to
3007 SSL_OP_MICROSOFT_SESS_ID_BUG being set.
3008 Behaviour observed by Crispin Flowerday <crispin@flowerday.cx> as
3009 followup to PR #377.
3012 *) IA-32 assembler support enhancements: unified ELF targets, support
3013 for SCO/Caldera platforms, fix for Cygwin shared build.
3016 *) Add support for FreeBSD on sparc64. As a consequence, support for
3017 FreeBSD on non-x86 processors is separate from x86 processors on
3018 the config script, much like the NetBSD support.
3019 [Richard Levitte & Kris Kennaway <kris@obsecurity.org>]
3021 Changes between 0.9.6h and 0.9.7 [31 Dec 2002]
3023 [NB: OpenSSL 0.9.6i and later 0.9.6 patch levels were released after
3026 *) Fix session ID handling in SSLv2 client code: the SERVER FINISHED
3027 code (06) was taken as the first octet of the session ID and the last
3028 octet was ignored consequently. As a result SSLv2 client side session
3029 caching could not have worked due to the session ID mismatch between
3031 Behaviour observed by Crispin Flowerday <crispin@flowerday.cx> as
3035 *) Change the declaration of needed Kerberos libraries to use EX_LIBS
3036 instead of the special (and badly supported) LIBKRB5. LIBKRB5 is
3040 *) The hw_ncipher.c engine requires dynamic locks. Unfortunately, it
3041 seems that in spite of existing for more than a year, many application
3042 author have done nothing to provide the necessary callbacks, which
3043 means that this particular engine will not work properly anywhere.
3044 This is a very unfortunate situation which forces us, in the name
3045 of usability, to give the hw_ncipher.c a static lock, which is part
3047 NOTE: This is for the 0.9.7 series ONLY. This hack will never
3048 appear in 0.9.8 or later. We EXPECT application authors to have
3049 dealt properly with this when 0.9.8 is released (unless we actually
3050 make such changes in the libcrypto locking code that changes will
3051 have to be made anyway).
3054 *) In asn1_d2i_read_bio() repeatedly call BIO_read() until all content
3055 octets have been read, EOF or an error occurs. Without this change
3056 some truncated ASN1 structures will not produce an error.
3059 *) Disable Heimdal support, since it hasn't been fully implemented.
3060 Still give the possibility to force the use of Heimdal, but with
3061 warnings and a request that patches get sent to openssl-dev.
3064 *) Add the VC-CE target, introduce the WINCE sysname, and add
3065 INSTALL.WCE and appropriate conditionals to make it build.
3066 [Steven Reddie <smr@essemer.com.au> via Richard Levitte]
3068 *) Change the DLL names for Cygwin to cygcrypto-x.y.z.dll and
3069 cygssl-x.y.z.dll, where x, y and z are the major, minor and
3070 edit numbers of the version.
3071 [Corinna Vinschen <vinschen@redhat.com> and Richard Levitte]
3073 *) Introduce safe string copy and catenation functions
3074 (BUF_strlcpy() and BUF_strlcat()).
3075 [Ben Laurie (CHATS) and Richard Levitte]
3077 *) Avoid using fixed-size buffers for one-line DNs.
3078 [Ben Laurie (CHATS)]
3080 *) Add BUF_MEM_grow_clean() to avoid information leakage when
3081 resizing buffers containing secrets, and use where appropriate.
3082 [Ben Laurie (CHATS)]
3084 *) Avoid using fixed size buffers for configuration file location.
3085 [Ben Laurie (CHATS)]
3087 *) Avoid filename truncation for various CA files.
3088 [Ben Laurie (CHATS)]
3090 *) Use sizeof in preference to magic numbers.
3091 [Ben Laurie (CHATS)]
3093 *) Avoid filename truncation in cert requests.
3094 [Ben Laurie (CHATS)]
3096 *) Add assertions to check for (supposedly impossible) buffer
3098 [Ben Laurie (CHATS)]
3100 *) Don't cache truncated DNS entries in the local cache (this could
3101 potentially lead to a spoofing attack).
3102 [Ben Laurie (CHATS)]
3104 *) Fix various buffers to be large enough for hex/decimal
3105 representations in a platform independent manner.
3106 [Ben Laurie (CHATS)]
3108 *) Add CRYPTO_realloc_clean() to avoid information leakage when
3109 resizing buffers containing secrets, and use where appropriate.
3110 [Ben Laurie (CHATS)]
3112 *) Add BIO_indent() to avoid much slightly worrying code to do
3114 [Ben Laurie (CHATS)]
3116 *) Convert sprintf()/BIO_puts() to BIO_printf().
3117 [Ben Laurie (CHATS)]
3119 *) buffer_gets() could terminate with the buffer only half
3121 [Ben Laurie (CHATS)]
3123 *) Add assertions to prevent user-supplied crypto functions from
3124 overflowing internal buffers by having large block sizes, etc.
3125 [Ben Laurie (CHATS)]
3127 *) New OPENSSL_assert() macro (similar to assert(), but enabled
3129 [Ben Laurie (CHATS)]
3131 *) Eliminate unused copy of key in RC4.
3132 [Ben Laurie (CHATS)]
3134 *) Eliminate unused and incorrectly sized buffers for IV in pem.h.
3135 [Ben Laurie (CHATS)]
3137 *) Fix off-by-one error in EGD path.
3138 [Ben Laurie (CHATS)]
3140 *) If RANDFILE path is too long, ignore instead of truncating.
3141 [Ben Laurie (CHATS)]
3143 *) Eliminate unused and incorrectly sized X.509 structure
3145 [Ben Laurie (CHATS)]
3147 *) Eliminate unused and dangerous function knumber().
3148 [Ben Laurie (CHATS)]
3150 *) Eliminate unused and dangerous structure, KSSL_ERR.
3151 [Ben Laurie (CHATS)]
3153 *) Protect against overlong session ID context length in an encoded
3154 session object. Since these are local, this does not appear to be
3156 [Ben Laurie (CHATS)]
3158 *) Change from security patch (see 0.9.6e below) that did not affect
3159 the 0.9.6 release series:
3161 Remote buffer overflow in SSL3 protocol - an attacker could
3162 supply an oversized master key in Kerberos-enabled versions.
3164 [Ben Laurie (CHATS)]
3166 *) Change the SSL kerb5 codes to match RFC 2712.
3169 *) Make -nameopt work fully for req and add -reqopt switch.
3170 [Michael Bell <michael.bell@rz.hu-berlin.de>, Steve Henson]
3172 *) The "block size" for block ciphers in CFB and OFB mode should be 1.
3173 [Steve Henson, reported by Yngve Nysaeter Pettersen <yngve@opera.com>]
3175 *) Make sure tests can be performed even if the corresponding algorithms
3176 have been removed entirely. This was also the last step to make
3177 OpenSSL compilable with DJGPP under all reasonable conditions.
3178 [Richard Levitte, Doug Kaufman <dkaufman@rahul.net>]
3180 *) Add cipher selection rules COMPLEMENTOFALL and COMPLEMENTOFDEFAULT
3181 to allow version independent disabling of normally unselected ciphers,
3182 which may be activated as a side-effect of selecting a single cipher.
3184 (E.g., cipher list string "RSA" enables ciphersuites that are left
3185 out of "ALL" because they do not provide symmetric encryption.
3186 "RSA:!COMPLEMEMENTOFALL" avoids these unsafe ciphersuites.)
3187 [Lutz Jaenicke, Bodo Moeller]
3189 *) Add appropriate support for separate platform-dependent build
3190 directories. The recommended way to make a platform-dependent
3191 build directory is the following (tested on Linux), maybe with
3194 # Place yourself outside of the OpenSSL source tree. In
3195 # this example, the environment variable OPENSSL_SOURCE
3196 # is assumed to contain the absolute OpenSSL source directory.
3197 mkdir -p objtree/"`uname -s`-`uname -r`-`uname -m`"
3198 cd objtree/"`uname -s`-`uname -r`-`uname -m`"
3199 (cd $OPENSSL_SOURCE; find . -type f) | while read F; do
3200 mkdir -p `dirname $F`
3201 ln -s $OPENSSL_SOURCE/$F $F
3204 To be absolutely sure not to disturb the source tree, a "make clean"
3205 is a good thing. If it isn't successfull, don't worry about it,
3206 it probably means the source directory is very clean.
3209 *) Make sure any ENGINE control commands make local copies of string
3210 pointers passed to them whenever necessary. Otherwise it is possible
3211 the caller may have overwritten (or deallocated) the original string
3212 data when a later ENGINE operation tries to use the stored values.
3213 [Götz Babin-Ebell <babinebell@trustcenter.de>]
3215 *) Improve diagnostics in file reading and command-line digests.
3216 [Ben Laurie aided and abetted by Solar Designer <solar@openwall.com>]
3218 *) Add AES modes CFB and OFB to the object database. Correct an
3219 error in AES-CFB decryption.
3222 *) Remove most calls to EVP_CIPHER_CTX_cleanup() in evp_enc.c, this
3223 allows existing EVP_CIPHER_CTX structures to be reused after
3224 calling EVP_*Final(). This behaviour is used by encryption
3225 BIOs and some applications. This has the side effect that
3226 applications must explicitly clean up cipher contexts with
3227 EVP_CIPHER_CTX_cleanup() or they will leak memory.
3230 *) Check the values of dna and dnb in bn_mul_recursive before calling
3231 bn_mul_comba (a non zero value means the a or b arrays do not contain
3232 n2 elements) and fallback to bn_mul_normal if either is not zero.
3235 *) Fix escaping of non-ASCII characters when using the -subj option
3236 of the "openssl req" command line tool. (Robert Joop <joop@fokus.gmd.de>)
3239 *) Make object definitions compliant to LDAP (RFC2256): SN is the short
3240 form for "surname", serialNumber has no short form.
3241 Use "mail" as the short name for "rfc822Mailbox" according to RFC2798;
3242 therefore remove "mail" short name for "internet 7".
3243 The OID for unique identifiers in X509 certificates is
3244 x500UniqueIdentifier, not uniqueIdentifier.
3245 Some more OID additions. (Michael Bell <michael.bell@rz.hu-berlin.de>)
3248 *) Add an "init" command to the ENGINE config module and auto initialize
3249 ENGINEs. Without any "init" command the ENGINE will be initialized
3250 after all ctrl commands have been executed on it. If init=1 the
3251 ENGINE is initailized at that point (ctrls before that point are run
3252 on the uninitialized ENGINE and after on the initialized one). If
3253 init=0 then the ENGINE will not be iniatialized at all.
3256 *) Fix the 'app_verify_callback' interface so that the user-defined
3257 argument is actually passed to the callback: In the
3258 SSL_CTX_set_cert_verify_callback() prototype, the callback
3259 declaration has been changed from
3262 int (*cb)(X509_STORE_CTX *,void *);
3263 in ssl_verify_cert_chain (ssl/ssl_cert.c), the call
3264 i=s->ctx->app_verify_callback(&ctx)
3265 has been changed into
3266 i=s->ctx->app_verify_callback(&ctx, s->ctx->app_verify_arg).
3268 To update applications using SSL_CTX_set_cert_verify_callback(),
3269 a dummy argument can be added to their callback functions.
3270 [D. K. Smetters <smetters@parc.xerox.com>]
3272 *) Added the '4758cca' ENGINE to support IBM 4758 cards.
3273 [Maurice Gittens <maurice@gittens.nl>, touchups by Geoff Thorpe]
3275 *) Add and OPENSSL_LOAD_CONF define which will cause
3276 OpenSSL_add_all_algorithms() to load the openssl.cnf config file.
3277 This allows older applications to transparently support certain
3278 OpenSSL features: such as crypto acceleration and dynamic ENGINE loading.
3279 Two new functions OPENSSL_add_all_algorithms_noconf() which will never
3280 load the config file and OPENSSL_add_all_algorithms_conf() which will
3281 always load it have also been added.
3284 *) Add the OFB, CFB and CTR (all with 128 bit feedback) to AES.
3285 Adjust NIDs and EVP layer.
3286 [Stephen Sprunk <stephen@sprunk.org> and Richard Levitte]
3288 *) Config modules support in openssl utility.
3290 Most commands now load modules from the config file,
3291 though in a few (such as version) this isn't done
3292 because it couldn't be used for anything.
3294 In the case of ca and req the config file used is
3295 the same as the utility itself: that is the -config
3296 command line option can be used to specify an
3300 *) Move default behaviour from OPENSSL_config(). If appname is NULL
3301 use "openssl_conf" if filename is NULL use default openssl config file.
3304 *) Add an argument to OPENSSL_config() to allow the use of an alternative
3305 config section name. Add a new flag to tolerate a missing config file
3306 and move code to CONF_modules_load_file().
3309 *) Support for crypto accelerator cards from Accelerated Encryption
3310 Processing, www.aep.ie. (Use engine 'aep')
3311 The support was copied from 0.9.6c [engine] and adapted/corrected
3312 to work with the new engine framework.
3313 [AEP Inc. and Richard Levitte]
3315 *) Support for SureWare crypto accelerator cards from Baltimore
3316 Technologies. (Use engine 'sureware')
3317 The support was copied from 0.9.6c [engine] and adapted
3318 to work with the new engine framework.
3321 *) Have the CHIL engine fork-safe (as defined by nCipher) and actually
3322 make the newer ENGINE framework commands for the CHIL engine work.
3323 [Toomas Kiisk <vix@cyber.ee> and Richard Levitte]
3325 *) Make it possible to produce shared libraries on ReliantUNIX.
3326 [Robert Dahlem <Robert.Dahlem@ffm2.siemens.de> via Richard Levitte]
3328 *) Add the configuration target debug-linux-ppro.
3329 Make 'openssl rsa' use the general key loading routines
3330 implemented in apps.c, and make those routines able to
3331 handle the key format FORMAT_NETSCAPE and the variant
3333 [Toomas Kiisk <vix@cyber.ee> via Richard Levitte]
3335 *) Fix a crashbug and a logic bug in hwcrhk_load_pubkey().
3336 [Toomas Kiisk <vix@cyber.ee> via Richard Levitte]
3338 *) Add -keyform to rsautl, and document -engine.
3339 [Richard Levitte, inspired by Toomas Kiisk <vix@cyber.ee>]
3341 *) Change BIO_new_file (crypto/bio/bss_file.c) to use new
3342 BIO_R_NO_SUCH_FILE error code rather than the generic
3343 ERR_R_SYS_LIB error code if fopen() fails with ENOENT.
3346 *) Add new functions
3348 ERR_peek_last_error_line
3349 ERR_peek_last_error_line_data.
3350 These are similar to
3353 ERR_peek_error_line_data,
3354 but report on the latest error recorded rather than the first one
3355 still in the error queue.
3356 [Ben Laurie, Bodo Moeller]
3358 *) default_algorithms option in ENGINE config module. This allows things
3360 default_algorithms = ALL
3361 default_algorithms = RSA, DSA, RAND, CIPHERS, DIGESTS
3364 *) Prelminary ENGINE config module.
3367 *) New experimental application configuration code.
3370 *) Change the AES code to follow the same name structure as all other
3371 symmetric ciphers, and behave the same way. Move everything to
3372 the directory crypto/aes, thereby obsoleting crypto/rijndael.
3373 [Stephen Sprunk <stephen@sprunk.org> and Richard Levitte]
3375 *) SECURITY: remove unsafe setjmp/signal interaction from ui_openssl.c.
3376 [Ben Laurie and Theo de Raadt]
3378 *) Add option to output public keys in req command.
3379 [Massimiliano Pala madwolf@openca.org]
3381 *) Use wNAFs in EC_POINTs_mul() for improved efficiency
3382 (up to about 10% better than before for P-192 and P-224).
3385 *) New functions/macros
3387 SSL_CTX_set_msg_callback(ctx, cb)
3388 SSL_CTX_set_msg_callback_arg(ctx, arg)
3389 SSL_set_msg_callback(ssl, cb)
3390 SSL_set_msg_callback_arg(ssl, arg)
3392 to request calling a callback function
3394 void cb(int write_p, int version, int content_type,
3395 const void *buf, size_t len, SSL *ssl, void *arg)
3397 whenever a protocol message has been completely received
3398 (write_p == 0) or sent (write_p == 1). Here 'version' is the
3399 protocol version according to which the SSL library interprets
3400 the current protocol message (SSL2_VERSION, SSL3_VERSION, or
3401 TLS1_VERSION). 'content_type' is 0 in the case of SSL 2.0, or
3402 the content type as defined in the SSL 3.0/TLS 1.0 protocol
3403 specification (change_cipher_spec(20), alert(21), handshake(22)).
3404 'buf' and 'len' point to the actual message, 'ssl' to the
3405 SSL object, and 'arg' is the application-defined value set by
3406 SSL[_CTX]_set_msg_callback_arg().
3408 'openssl s_client' and 'openssl s_server' have new '-msg' options
3409 to enable a callback that displays all protocol messages.
3412 *) Change the shared library support so shared libraries are built as
3413 soon as the corresponding static library is finished, and thereby get
3414 openssl and the test programs linked against the shared library.
3415 This still only happens when the keyword "shard" has been given to
3416 the configuration scripts.
3418 NOTE: shared library support is still an experimental thing, and
3419 backward binary compatibility is still not guaranteed.
3420 ["Maciej W. Rozycki" <macro@ds2.pg.gda.pl> and Richard Levitte]
3422 *) Add support for Subject Information Access extension.
3423 [Peter Sylvester <Peter.Sylvester@EdelWeb.fr>]
3425 *) Make BUF_MEM_grow() behaviour more consistent: Initialise to zero
3426 additional bytes when new memory had to be allocated, not just
3427 when reusing an existing buffer.
3430 *) New command line and configuration option 'utf8' for the req command.
3431 This allows field values to be specified as UTF8 strings.
3434 *) Add -multi and -mr options to "openssl speed" - giving multiple parallel
3435 runs for the former and machine-readable output for the latter.
3438 *) Add '-noemailDN' option to 'openssl ca'. This prevents inclusion
3439 of the e-mail address in the DN (i.e., it will go into a certificate
3440 extension only). The new configuration file option 'email_in_dn = no'
3441 has the same effect.
3442 [Massimiliano Pala madwolf@openca.org]
3444 *) Change all functions with names starting with des_ to be starting
3445 with DES_ instead. Add wrappers that are compatible with libdes,
3446 but are named _ossl_old_des_*. Finally, add macros that map the
3447 des_* symbols to the corresponding _ossl_old_des_* if libdes
3448 compatibility is desired. If OpenSSL 0.9.6c compatibility is
3449 desired, the des_* symbols will be mapped to DES_*, with one
3452 Since we provide two compatibility mappings, the user needs to
3453 define the macro OPENSSL_DES_LIBDES_COMPATIBILITY if libdes
3454 compatibility is desired. The default (i.e., when that macro
3455 isn't defined) is OpenSSL 0.9.6c compatibility.
3457 There are also macros that enable and disable the support of old
3458 des functions altogether. Those are OPENSSL_ENABLE_OLD_DES_SUPPORT
3459 and OPENSSL_DISABLE_OLD_DES_SUPPORT. If none or both of those
3460 are defined, the default will apply: to support the old des routines.
3462 In either case, one must include openssl/des.h to get the correct
3463 definitions. Do not try to just include openssl/des_old.h, that
3466 NOTE: This is a major break of an old API into a new one. Software
3467 authors are encouraged to switch to the DES_ style functions. Some
3468 time in the future, des_old.h and the libdes compatibility functions
3469 will be disable (i.e. OPENSSL_DISABLE_OLD_DES_SUPPORT will be the
3470 default), and then completely removed.
3473 *) Test for certificates which contain unsupported critical extensions.
3474 If such a certificate is found during a verify operation it is
3475 rejected by default: this behaviour can be overridden by either
3476 handling the new error X509_V_ERR_UNHANDLED_CRITICAL_EXTENSION or
3477 by setting the verify flag X509_V_FLAG_IGNORE_CRITICAL. A new function
3478 X509_supported_extension() has also been added which returns 1 if a
3479 particular extension is supported.
3482 *) Modify the behaviour of EVP cipher functions in similar way to digests
3483 to retain compatibility with existing code.
3486 *) Modify the behaviour of EVP_DigestInit() and EVP_DigestFinal() to retain
3487 compatibility with existing code. In particular the 'ctx' parameter does
3488 not have to be to be initialized before the call to EVP_DigestInit() and
3489 it is tidied up after a call to EVP_DigestFinal(). New function
3490 EVP_DigestFinal_ex() which does not tidy up the ctx. Similarly function
3491 EVP_MD_CTX_copy() changed to not require the destination to be
3492 initialized valid and new function EVP_MD_CTX_copy_ex() added which
3493 requires the destination to be valid.
3495 Modify all the OpenSSL digest calls to use EVP_DigestInit_ex(),
3496 EVP_DigestFinal_ex() and EVP_MD_CTX_copy_ex().
3499 *) Change ssl3_get_message (ssl/s3_both.c) and the functions using it
3500 so that complete 'Handshake' protocol structures are kept in memory
3501 instead of overwriting 'msg_type' and 'length' with 'body' data.
3504 *) Add an implementation of SSL_add_dir_cert_subjects_to_stack for Win32.
3505 [Massimo Santin via Richard Levitte]
3507 *) Major restructuring to the underlying ENGINE code. This includes
3508 reduction of linker bloat, separation of pure "ENGINE" manipulation
3509 (initialisation, etc) from functionality dealing with implementations
3510 of specific crypto iterfaces. This change also introduces integrated
3511 support for symmetric ciphers and digest implementations - so ENGINEs
3512 can now accelerate these by providing EVP_CIPHER and EVP_MD
3513 implementations of their own. This is detailed in crypto/engine/README
3514 as it couldn't be adequately described here. However, there are a few
3515 API changes worth noting - some RSA, DSA, DH, and RAND functions that
3516 were changed in the original introduction of ENGINE code have now
3517 reverted back - the hooking from this code to ENGINE is now a good
3518 deal more passive and at run-time, operations deal directly with
3519 RSA_METHODs, DSA_METHODs (etc) as they did before, rather than
3520 dereferencing through an ENGINE pointer any more. Also, the ENGINE
3521 functions dealing with BN_MOD_EXP[_CRT] handlers have been removed -
3522 they were not being used by the framework as there is no concept of a
3523 BIGNUM_METHOD and they could not be generalised to the new
3524 'ENGINE_TABLE' mechanism that underlies the new code. Similarly,
3525 ENGINE_cpy() has been removed as it cannot be consistently defined in
3529 *) Change ASN1_GENERALIZEDTIME_check() to allow fractional seconds.
3532 *) Change mkdef.pl to sort symbols that get the same entry number,
3533 and make sure the automatically generated functions ERR_load_*
3534 become part of libeay.num as well.
3537 *) New function SSL_renegotiate_pending(). This returns true once
3538 renegotiation has been requested (either SSL_renegotiate() call
3539 or HelloRequest/ClientHello receveived from the peer) and becomes
3540 false once a handshake has been completed.
3541 (For servers, SSL_renegotiate() followed by SSL_do_handshake()
3542 sends a HelloRequest, but does not ensure that a handshake takes
3543 place. SSL_renegotiate_pending() is useful for checking if the
3544 client has followed the request.)
3547 *) New SSL option SSL_OP_NO_SESSION_RESUMPTION_ON_RENEGOTIATION.
3548 By default, clients may request session resumption even during
3549 renegotiation (if session ID contexts permit); with this option,
3550 session resumption is possible only in the first handshake.
3552 SSL_OP_ALL is now 0x00000FFFL instead of 0x000FFFFFL. This makes
3553 more bits available for options that should not be part of
3554 SSL_OP_ALL (such as SSL_OP_NO_SESSION_RESUMPTION_ON_RENEGOTIATION).
3557 *) Add some demos for certificate and certificate request creation.
3560 *) Make maximum certificate chain size accepted from the peer application
3561 settable (SSL*_get/set_max_cert_list()), as proposed by
3562 "Douglas E. Engert" <deengert@anl.gov>.
3565 *) Add support for shared libraries for Unixware-7
3566 (Boyd Lynn Gerber <gerberb@zenez.com>).
3569 *) Add a "destroy" handler to ENGINEs that allows structural cleanup to
3570 be done prior to destruction. Use this to unload error strings from
3571 ENGINEs that load their own error strings. NB: This adds two new API
3572 functions to "get" and "set" this destroy handler in an ENGINE.
3575 *) Alter all existing ENGINE implementations (except "openssl" and
3576 "openbsd") to dynamically instantiate their own error strings. This
3577 makes them more flexible to be built both as statically-linked ENGINEs
3578 and self-contained shared-libraries loadable via the "dynamic" ENGINE.
3579 Also, add stub code to each that makes building them as self-contained
3580 shared-libraries easier (see README.ENGINE).
3583 *) Add a "dynamic" ENGINE that provides a mechanism for binding ENGINE
3584 implementations into applications that are completely implemented in
3585 self-contained shared-libraries. The "dynamic" ENGINE exposes control
3586 commands that can be used to configure what shared-library to load and
3587 to control aspects of the way it is handled. Also, made an update to
3588 the README.ENGINE file that brings its information up-to-date and
3589 provides some information and instructions on the "dynamic" ENGINE
3590 (ie. how to use it, how to build "dynamic"-loadable ENGINEs, etc).
3593 *) Make it possible to unload ranges of ERR strings with a new
3594 "ERR_unload_strings" function.
3597 *) Add a copy() function to EVP_MD.
3600 *) Make EVP_MD routines take a context pointer instead of just the
3601 md_data void pointer.
3604 *) Add flags to EVP_MD and EVP_MD_CTX. EVP_MD_FLAG_ONESHOT indicates
3605 that the digest can only process a single chunk of data
3606 (typically because it is provided by a piece of
3607 hardware). EVP_MD_CTX_FLAG_ONESHOT indicates that the application
3608 is only going to provide a single chunk of data, and hence the
3609 framework needn't accumulate the data for oneshot drivers.
3612 *) As with "ERR", make it possible to replace the underlying "ex_data"
3613 functions. This change also alters the storage and management of global
3614 ex_data state - it's now all inside ex_data.c and all "class" code (eg.
3615 RSA, BIO, SSL_CTX, etc) no longer stores its own STACKS and per-class
3616 index counters. The API functions that use this state have been changed
3617 to take a "class_index" rather than pointers to the class's local STACK
3618 and counter, and there is now an API function to dynamically create new
3619 classes. This centralisation allows us to (a) plug a lot of the
3620 thread-safety problems that existed, and (b) makes it possible to clean
3621 up all allocated state using "CRYPTO_cleanup_all_ex_data()". W.r.t. (b)
3622 such data would previously have always leaked in application code and
3623 workarounds were in place to make the memory debugging turn a blind eye
3624 to it. Application code that doesn't use this new function will still
3625 leak as before, but their memory debugging output will announce it now
3626 rather than letting it slide.
3628 Besides the addition of CRYPTO_cleanup_all_ex_data(), another API change
3629 induced by the "ex_data" overhaul is that X509_STORE_CTX_init() now
3630 has a return value to indicate success or failure.
3633 *) Make it possible to replace the underlying "ERR" functions such that the
3634 global state (2 LHASH tables and 2 locks) is only used by the "default"
3635 implementation. This change also adds two functions to "get" and "set"
3636 the implementation prior to it being automatically set the first time
3637 any other ERR function takes place. Ie. an application can call "get",
3638 pass the return value to a module it has just loaded, and that module
3639 can call its own "set" function using that value. This means the
3640 module's "ERR" operations will use (and modify) the error state in the
3641 application and not in its own statically linked copy of OpenSSL code.
3644 *) Give DH, DSA, and RSA types their own "**_up_ref()" function to increment
3645 reference counts. This performs normal REF_PRINT/REF_CHECK macros on
3646 the operation, and provides a more encapsulated way for external code
3647 (crypto/evp/ and ssl/) to do this. Also changed the evp and ssl code
3648 to use these functions rather than manually incrementing the counts.
3650 Also rename "DSO_up()" function to more descriptive "DSO_up_ref()".
3653 *) Add EVP test program.
3656 *) Add symmetric cipher support to ENGINE. Expect the API to change!
3659 *) New CRL functions: X509_CRL_set_version(), X509_CRL_set_issuer_name()
3660 X509_CRL_set_lastUpdate(), X509_CRL_set_nextUpdate(), X509_CRL_sort(),
3661 X509_REVOKED_set_serialNumber(), and X509_REVOKED_set_revocationDate().
3662 These allow a CRL to be built without having to access X509_CRL fields
3663 directly. Modify 'ca' application to use new functions.
3666 *) Move SSL_OP_TLS_ROLLBACK_BUG out of the SSL_OP_ALL list of recommended
3667 bug workarounds. Rollback attack detection is a security feature.
3668 The problem will only arise on OpenSSL servers when TLSv1 is not
3669 available (sslv3_server_method() or SSL_OP_NO_TLSv1).
3670 Software authors not wanting to support TLSv1 will have special reasons
3671 for their choice and can explicitly enable this option.
3672 [Bodo Moeller, Lutz Jaenicke]
3674 *) Rationalise EVP so it can be extended: don't include a union of
3675 cipher/digest structures, add init/cleanup functions for EVP_MD_CTX
3676 (similar to those existing for EVP_CIPHER_CTX).
3681 EVP_MD_CTX_init(&md); /* new function call */
3682 EVP_DigestInit(&md, EVP_sha1());
3683 EVP_DigestUpdate(&md, in, len);
3684 EVP_DigestFinal(&md, out, NULL);
3685 EVP_MD_CTX_cleanup(&md); /* new function call */
3689 *) Make DES key schedule conform to the usual scheme, as well as
3690 correcting its structure. This means that calls to DES functions
3691 now have to pass a pointer to a des_key_schedule instead of a
3692 plain des_key_schedule (which was actually always a pointer
3695 des_key_schedule ks;
3697 des_set_key_checked(..., &ks);
3698 des_ncbc_encrypt(..., &ks, ...);
3700 (Note that a later change renames 'des_...' into 'DES_...'.)
3703 *) Initial reduction of linker bloat: the use of some functions, such as
3704 PEM causes large amounts of unused functions to be linked in due to
3705 poor organisation. For example pem_all.c contains every PEM function
3706 which has a knock on effect of linking in large amounts of (unused)
3707 ASN1 code. Grouping together similar functions and splitting unrelated
3708 functions prevents this.
3711 *) Cleanup of EVP macros.
3714 *) Change historical references to {NID,SN,LN}_des_ede and ede3 to add the
3715 correct _ecb suffix.
3718 *) Add initial OCSP responder support to ocsp application. The
3719 revocation information is handled using the text based index
3720 use by the ca application. The responder can either handle
3721 requests generated internally, supplied in files (for example
3722 via a CGI script) or using an internal minimal server.
3725 *) Add configuration choices to get zlib compression for TLS.
3728 *) Changes to Kerberos SSL for RFC 2712 compliance:
3729 1. Implemented real KerberosWrapper, instead of just using
3730 KRB5 AP_REQ message. [Thanks to Simon Wilkinson <sxw@sxw.org.uk>]
3731 2. Implemented optional authenticator field of KerberosWrapper.
3733 Added openssl-style ASN.1 macros for Kerberos ticket, ap_req,
3734 and authenticator structs; see crypto/krb5/.
3736 Generalized Kerberos calls to support multiple Kerberos libraries.
3737 [Vern Staats <staatsvr@asc.hpc.mil>,
3738 Jeffrey Altman <jaltman@columbia.edu>
3739 via Richard Levitte]
3741 *) Cause 'openssl speed' to use fully hard-coded DSA keys as it
3742 already does with RSA. testdsa.h now has 'priv_key/pub_key'
3743 values for each of the key sizes rather than having just
3744 parameters (and 'speed' generating keys each time).
3747 *) Speed up EVP routines.
3750 type 8 bytes 64 bytes 256 bytes 1024 bytes 8192 bytes
3751 des-cbc 4408.85k 5560.51k 5778.46k 5862.20k 5825.16k
3752 des-cbc 4389.55k 5571.17k 5792.23k 5846.91k 5832.11k
3753 des-cbc 4394.32k 5575.92k 5807.44k 5848.37k 5841.30k
3755 des-cbc 3482.66k 5069.49k 5496.39k 5614.16k 5639.28k
3756 des-cbc 3480.74k 5068.76k 5510.34k 5609.87k 5635.52k
3757 des-cbc 3483.72k 5067.62k 5504.60k 5708.01k 5724.80k
3760 des-cbc 4660.16k 5650.19k 5807.19k 5827.13k 5783.32k
3762 des-cbc 3624.96k 5258.21k 5530.91k 5624.30k 5628.26k
3765 *) Added the OS2-EMX target.
3766 ["Brian Havard" <brianh@kheldar.apana.org.au> and Richard Levitte]
3768 *) Rewrite apps to use NCONF routines instead of the old CONF. New functions
3769 to support NCONF routines in extension code. New function CONF_set_nconf()
3770 to allow functions which take an NCONF to also handle the old LHASH
3771 structure: this means that the old CONF compatible routines can be
3772 retained (in particular wrt extensions) without having to duplicate the
3773 code. New function X509V3_add_ext_nconf_sk to add extensions to a stack.
3776 *) Enhance the general user interface with mechanisms for inner control
3777 and with possibilities to have yes/no kind of prompts.
3780 *) Change all calls to low level digest routines in the library and
3781 applications to use EVP. Add missing calls to HMAC_cleanup() and
3782 don't assume HMAC_CTX can be copied using memcpy().
3783 [Verdon Walker <VWalker@novell.com>, Steve Henson]
3785 *) Add the possibility to control engines through control names but with
3786 arbitrary arguments instead of just a string.
3787 Change the key loaders to take a UI_METHOD instead of a callback
3788 function pointer. NOTE: this breaks binary compatibility with earlier
3789 versions of OpenSSL [engine].
3790 Adapt the nCipher code for these new conditions and add a card insertion
3794 *) Enhance the general user interface with mechanisms to better support
3795 dialog box interfaces, application-defined prompts, the possibility
3796 to use defaults (for example default passwords from somewhere else)
3797 and interrupts/cancellations.
3800 *) Tidy up PKCS#12 attribute handling. Add support for the CSP name
3801 attribute in PKCS#12 files, add new -CSP option to pkcs12 utility.
3804 *) Fix a memory leak in 'sk_dup()' in the case reallocation fails. (Also
3805 tidy up some unnecessarily weird code in 'sk_new()').
3806 [Geoff, reported by Diego Tartara <dtartara@novamens.com>]
3808 *) Change the key loading routines for ENGINEs to use the same kind
3809 callback (pem_password_cb) as all other routines that need this
3813 *) Increase ENTROPY_NEEDED to 32 bytes, as Rijndael can operate with
3814 256 bit (=32 byte) keys. Of course seeding with more entropy bytes
3815 than this minimum value is recommended.
3818 *) New random seeder for OpenVMS, using the system process statistics
3819 that are easily reachable.
3822 *) Windows apparently can't transparently handle global
3823 variables defined in DLLs. Initialisations such as:
3825 const ASN1_ITEM *it = &ASN1_INTEGER_it;
3827 wont compile. This is used by the any applications that need to
3828 declare their own ASN1 modules. This was fixed by adding the option
3829 EXPORT_VAR_AS_FN to all Win32 platforms, although this isn't strictly
3830 needed for static libraries under Win32.
3833 *) New functions X509_PURPOSE_set() and X509_TRUST_set() to handle
3834 setting of purpose and trust fields. New X509_STORE trust and
3835 purpose functions and tidy up setting in other SSL functions.
3838 *) Add copies of X509_STORE_CTX fields and callbacks to X509_STORE
3839 structure. These are inherited by X509_STORE_CTX when it is
3840 initialised. This allows various defaults to be set in the
3841 X509_STORE structure (such as flags for CRL checking and custom
3842 purpose or trust settings) for functions which only use X509_STORE_CTX
3843 internally such as S/MIME.
3845 Modify X509_STORE_CTX_purpose_inherit() so it only sets purposes and
3846 trust settings if they are not set in X509_STORE. This allows X509_STORE
3847 purposes and trust (in S/MIME for example) to override any set by default.
3849 Add command line options for CRL checking to smime, s_client and s_server
3853 *) Initial CRL based revocation checking. If the CRL checking flag(s)
3854 are set then the CRL is looked up in the X509_STORE structure and
3855 its validity and signature checked, then if the certificate is found
3856 in the CRL the verify fails with a revoked error.
3858 Various new CRL related callbacks added to X509_STORE_CTX structure.
3860 Command line options added to 'verify' application to support this.
3862 This needs some additional work, such as being able to handle multiple
3863 CRLs with different times, extension based lookup (rather than just
3864 by subject name) and ultimately more complete V2 CRL extension
3868 *) Add a general user interface API (crypto/ui/). This is designed
3869 to replace things like des_read_password and friends (backward
3870 compatibility functions using this new API are provided).
3871 The purpose is to remove prompting functions from the DES code
3872 section as well as provide for prompting through dialog boxes in
3873 a window system and the like.
3876 *) Add "ex_data" support to ENGINE so implementations can add state at a
3877 per-structure level rather than having to store it globally.
3880 *) Make it possible for ENGINE structures to be copied when retrieved by
3881 ENGINE_by_id() if the ENGINE specifies a new flag: ENGINE_FLAGS_BY_ID_COPY.
3882 This causes the "original" ENGINE structure to act like a template,
3883 analogous to the RSA vs. RSA_METHOD type of separation. Because of this
3884 operational state can be localised to each ENGINE structure, despite the
3885 fact they all share the same "methods". New ENGINE structures returned in
3886 this case have no functional references and the return value is the single
3887 structural reference. This matches the single structural reference returned
3888 by ENGINE_by_id() normally, when it is incremented on the pre-existing
3892 *) Fix ASN1 decoder when decoding type ANY and V_ASN1_OTHER: since this
3893 needs to match any other type at all we need to manually clear the
3897 *) Changes to the "openssl engine" utility to include;
3898 - verbosity levels ('-v', '-vv', and '-vvv') that provide information
3899 about an ENGINE's available control commands.
3900 - executing control commands from command line arguments using the
3901 '-pre' and '-post' switches. '-post' is only used if '-t' is
3902 specified and the ENGINE is successfully initialised. The syntax for
3903 the individual commands are colon-separated, for example;
3904 openssl engine chil -pre FORK_CHECK:0 -pre SO_PATH:/lib/test.so
3907 *) New dynamic control command support for ENGINEs. ENGINEs can now
3908 declare their own commands (numbers), names (strings), descriptions,
3909 and input types for run-time discovery by calling applications. A
3910 subset of these commands are implicitly classed as "executable"
3911 depending on their input type, and only these can be invoked through
3912 the new string-based API function ENGINE_ctrl_cmd_string(). (Eg. this
3913 can be based on user input, config files, etc). The distinction is
3914 that "executable" commands cannot return anything other than a boolean
3915 result and can only support numeric or string input, whereas some
3916 discoverable commands may only be for direct use through
3917 ENGINE_ctrl(), eg. supporting the exchange of binary data, function
3918 pointers, or other custom uses. The "executable" commands are to
3919 support parameterisations of ENGINE behaviour that can be
3920 unambiguously defined by ENGINEs and used consistently across any
3921 OpenSSL-based application. Commands have been added to all the
3922 existing hardware-supporting ENGINEs, noticeably "SO_PATH" to allow
3923 control over shared-library paths without source code alterations.
3926 *) Changed all ENGINE implementations to dynamically allocate their
3927 ENGINEs rather than declaring them statically. Apart from this being
3928 necessary with the removal of the ENGINE_FLAGS_MALLOCED distinction,
3929 this also allows the implementations to compile without using the
3930 internal engine_int.h header.
3933 *) Minor adjustment to "rand" code. RAND_get_rand_method() now returns a
3934 'const' value. Any code that should be able to modify a RAND_METHOD
3935 should already have non-const pointers to it (ie. they should only
3936 modify their own ones).
3939 *) Made a variety of little tweaks to the ENGINE code.
3940 - "atalla" and "ubsec" string definitions were moved from header files
3941 to C code. "nuron" string definitions were placed in variables
3942 rather than hard-coded - allowing parameterisation of these values
3943 later on via ctrl() commands.
3944 - Removed unused "#if 0"'d code.
3945 - Fixed engine list iteration code so it uses ENGINE_free() to release
3946 structural references.
3947 - Constified the RAND_METHOD element of ENGINE structures.
3948 - Constified various get/set functions as appropriate and added
3949 missing functions (including a catch-all ENGINE_cpy that duplicates
3950 all ENGINE values onto a new ENGINE except reference counts/state).
3951 - Removed NULL parameter checks in get/set functions. Setting a method
3952 or function to NULL is a way of cancelling out a previously set
3953 value. Passing a NULL ENGINE parameter is just plain stupid anyway
3954 and doesn't justify the extra error symbols and code.
3955 - Deprecate the ENGINE_FLAGS_MALLOCED define and move the area for
3956 flags from engine_int.h to engine.h.
3957 - Changed prototypes for ENGINE handler functions (init(), finish(),
3958 ctrl(), key-load functions, etc) to take an (ENGINE*) parameter.
3961 *) Implement binary inversion algorithm for BN_mod_inverse in addition
3962 to the algorithm using long division. The binary algorithm can be
3963 used only if the modulus is odd. On 32-bit systems, it is faster
3964 only for relatively small moduli (roughly 20-30% for 128-bit moduli,
3965 roughly 5-15% for 256-bit moduli), so we use it only for moduli
3966 up to 450 bits. In 64-bit environments, the binary algorithm
3967 appears to be advantageous for much longer moduli; here we use it
3968 for moduli up to 2048 bits.
3971 *) Rewrite CHOICE field setting in ASN1_item_ex_d2i(). The old code
3972 could not support the combine flag in choice fields.
3975 *) Add a 'copy_extensions' option to the 'ca' utility. This copies
3976 extensions from a certificate request to the certificate.
3979 *) Allow multiple 'certopt' and 'nameopt' options to be separated
3980 by commas. Add 'namopt' and 'certopt' options to the 'ca' config
3981 file: this allows the display of the certificate about to be
3982 signed to be customised, to allow certain fields to be included
3983 or excluded and extension details. The old system didn't display
3984 multicharacter strings properly, omitted fields not in the policy
3985 and couldn't display additional details such as extensions.
3988 *) Function EC_POINTs_mul for multiple scalar multiplication
3989 of an arbitrary number of elliptic curve points
3990 \sum scalars[i]*points[i],
3991 optionally including the generator defined for the EC_GROUP:
3992 scalar*generator + \sum scalars[i]*points[i].
3994 EC_POINT_mul is a simple wrapper function for the typical case
3995 that the point list has just one item (besides the optional
3999 *) First EC_METHODs for curves over GF(p):
4001 EC_GFp_simple_method() uses the basic BN_mod_mul and BN_mod_sqr
4002 operations and provides various method functions that can also
4003 operate with faster implementations of modular arithmetic.
4005 EC_GFp_mont_method() reuses most functions that are part of
4006 EC_GFp_simple_method, but uses Montgomery arithmetic.
4008 [Bodo Moeller; point addition and point doubling
4009 implementation directly derived from source code provided by
4010 Lenka Fibikova <fibikova@exp-math.uni-essen.de>]
4012 *) Framework for elliptic curves (crypto/ec/ec.h, crypto/ec/ec_lcl.h,
4013 crypto/ec/ec_lib.c):
4015 Curves are EC_GROUP objects (with an optional group generator)
4016 based on EC_METHODs that are built into the library.
4018 Points are EC_POINT objects based on EC_GROUP objects.
4020 Most of the framework would be able to handle curves over arbitrary
4021 finite fields, but as there are no obvious types for fields other
4022 than GF(p), some functions are limited to that for now.
4025 *) Add the -HTTP option to s_server. It is similar to -WWW, but requires
4026 that the file contains a complete HTTP response.
4029 *) Add the ec directory to mkdef.pl and mkfiles.pl. In mkdef.pl
4030 change the def and num file printf format specifier from "%-40sXXX"
4031 to "%-39s XXX". The latter will always guarantee a space after the
4032 field while the former will cause them to run together if the field
4033 is 40 of more characters long.
4036 *) Constify the cipher and digest 'method' functions and structures
4037 and modify related functions to take constant EVP_MD and EVP_CIPHER
4041 *) Hide BN_CTX structure details in bn_lcl.h instead of publishing them
4042 in <openssl/bn.h>. Also further increase BN_CTX_NUM to 32.
4045 *) Modify EVP_Digest*() routines so they now return values. Although the
4046 internal software routines can never fail additional hardware versions
4050 *) Clean up crypto/err/err.h and change some error codes to avoid conflicts:
4052 Previously ERR_R_FATAL was too small and coincided with ERR_LIB_PKCS7
4053 (= ERR_R_PKCS7_LIB); it is now 64 instead of 32.
4056 ERR_R_NESTED_ASN1_ERROR
4058 ERR_R_MISSING_ASN1_EOS
4059 were 4 .. 9, conflicting with
4060 ERR_LIB_RSA (= ERR_R_RSA_LIB)
4062 ERR_LIB_PEM (= ERR_R_PEM_LIB).
4063 They are now 58 .. 63 (i.e., just below ERR_R_FATAL).
4065 Add new error code 'ERR_R_INTERNAL_ERROR'.
4068 *) Don't overuse locks in crypto/err/err.c: For data retrieval, CRYPTO_r_lock
4072 *) New option '-subj arg' for 'openssl req' and 'openssl ca'. This
4073 sets the subject name for a new request or supersedes the
4074 subject name in a given request. Formats that can be parsed are
4075 'CN=Some Name, OU=myOU, C=IT'
4077 'CN=Some Name/OU=myOU/C=IT'.
4079 Add options '-batch' and '-verbose' to 'openssl req'.
4080 [Massimiliano Pala <madwolf@hackmasters.net>]
4082 *) Introduce the possibility to access global variables through
4083 functions on platform were that's the best way to handle exporting
4084 global variables in shared libraries. To enable this functionality,
4085 one must configure with "EXPORT_VAR_AS_FN" or defined the C macro
4086 "OPENSSL_EXPORT_VAR_AS_FUNCTION" in crypto/opensslconf.h (the latter
4087 is normally done by Configure or something similar).
4089 To implement a global variable, use the macro OPENSSL_IMPLEMENT_GLOBAL
4090 in the source file (foo.c) like this:
4092 OPENSSL_IMPLEMENT_GLOBAL(int,foo)=1;
4093 OPENSSL_IMPLEMENT_GLOBAL(double,bar);
4095 To declare a global variable, use the macros OPENSSL_DECLARE_GLOBAL
4096 and OPENSSL_GLOBAL_REF in the header file (foo.h) like this:
4098 OPENSSL_DECLARE_GLOBAL(int,foo);
4099 #define foo OPENSSL_GLOBAL_REF(foo)
4100 OPENSSL_DECLARE_GLOBAL(double,bar);
4101 #define bar OPENSSL_GLOBAL_REF(bar)
4103 The #defines are very important, and therefore so is including the
4104 header file everywhere where the defined globals are used.
4106 The macro OPENSSL_EXPORT_VAR_AS_FUNCTION also affects the definition
4107 of ASN.1 items, but that structure is a bit different.
4109 The largest change is in util/mkdef.pl which has been enhanced with
4110 better and easier to understand logic to choose which symbols should
4111 go into the Windows .def files as well as a number of fixes and code
4112 cleanup (among others, algorithm keywords are now sorted
4113 lexicographically to avoid constant rewrites).
4116 *) In BN_div() keep a copy of the sign of 'num' before writing the
4117 result to 'rm' because if rm==num the value will be overwritten
4118 and produce the wrong result if 'num' is negative: this caused
4119 problems with BN_mod() and BN_nnmod().
4122 *) Function OCSP_request_verify(). This checks the signature on an
4123 OCSP request and verifies the signer certificate. The signer
4124 certificate is just checked for a generic purpose and OCSP request
4128 *) Add OCSP_check_validity() function to check the validity of OCSP
4129 responses. OCSP responses are prepared in real time and may only
4130 be a few seconds old. Simply checking that the current time lies
4131 between thisUpdate and nextUpdate max reject otherwise valid responses
4132 caused by either OCSP responder or client clock inaccuracy. Instead
4133 we allow thisUpdate and nextUpdate to fall within a certain period of
4134 the current time. The age of the response can also optionally be
4135 checked. Two new options -validity_period and -status_age added to
4139 *) If signature or public key algorithm is unrecognized print out its
4140 OID rather that just UNKNOWN.
4143 *) Change OCSP_cert_to_id() to tolerate a NULL subject certificate and
4144 OCSP_cert_id_new() a NULL serialNumber. This allows a partial certificate
4145 ID to be generated from the issuer certificate alone which can then be
4146 passed to OCSP_id_issuer_cmp().
4149 *) New compilation option ASN1_ITEM_FUNCTIONS. This causes the new
4150 ASN1 modules to export functions returning ASN1_ITEM pointers
4151 instead of the ASN1_ITEM structures themselves. This adds several
4152 new macros which allow the underlying ASN1 function/structure to
4153 be accessed transparently. As a result code should not use ASN1_ITEM
4154 references directly (such as &X509_it) but instead use the relevant
4155 macros (such as ASN1_ITEM_rptr(X509)). This option is to allow
4156 use of the new ASN1 code on platforms where exporting structures
4157 is problematical (for example in shared libraries) but exporting
4158 functions returning pointers to structures is not.
4161 *) Add support for overriding the generation of SSL/TLS session IDs.
4162 These callbacks can be registered either in an SSL_CTX or per SSL.
4163 The purpose of this is to allow applications to control, if they wish,
4164 the arbitrary values chosen for use as session IDs, particularly as it
4165 can be useful for session caching in multiple-server environments. A
4166 command-line switch for testing this (and any client code that wishes
4167 to use such a feature) has been added to "s_server".
4168 [Geoff Thorpe, Lutz Jaenicke]
4170 *) Modify mkdef.pl to recognise and parse preprocessor conditionals
4171 of the form '#if defined(...) || defined(...) || ...' and
4172 '#if !defined(...) && !defined(...) && ...'. This also avoids
4173 the growing number of special cases it was previously handling.
4176 *) Make all configuration macros available for application by making
4177 sure they are available in opensslconf.h, by giving them names starting
4178 with "OPENSSL_" to avoid conflicts with other packages and by making
4179 sure e_os2.h will cover all platform-specific cases together with
4181 Additionally, it is now possible to define configuration/platform-
4182 specific names (called "system identities"). In the C code, these
4183 are prefixed with "OPENSSL_SYSNAME_". e_os2.h will create another
4184 macro with the name beginning with "OPENSSL_SYS_", which is determined
4185 from "OPENSSL_SYSNAME_*" or compiler-specific macros depending on
4189 *) New option -set_serial to 'req' and 'x509' this allows the serial
4190 number to use to be specified on the command line. Previously self
4191 signed certificates were hard coded with serial number 0 and the
4192 CA options of 'x509' had to use a serial number in a file which was
4196 *) New options to 'ca' utility to support V2 CRL entry extensions.
4197 Currently CRL reason, invalidity date and hold instruction are
4198 supported. Add new CRL extensions to V3 code and some new objects.
4201 *) New function EVP_CIPHER_CTX_set_padding() this is used to
4202 disable standard block padding (aka PKCS#5 padding) in the EVP
4203 API, which was previously mandatory. This means that the data is
4204 not padded in any way and so the total length much be a multiple
4205 of the block size, otherwise an error occurs.
4208 *) Initial (incomplete) OCSP SSL support.
4211 *) New function OCSP_parse_url(). This splits up a URL into its host,
4212 port and path components: primarily to parse OCSP URLs. New -url
4213 option to ocsp utility.
4216 *) New nonce behavior. The return value of OCSP_check_nonce() now
4217 reflects the various checks performed. Applications can decide
4218 whether to tolerate certain situations such as an absent nonce
4219 in a response when one was present in a request: the ocsp application
4220 just prints out a warning. New function OCSP_add1_basic_nonce()
4221 this is to allow responders to include a nonce in a response even if
4222 the request is nonce-less.
4225 *) Disable stdin buffering in load_cert (apps/apps.c) so that no certs are
4226 skipped when using openssl x509 multiple times on a single input file,
4227 e.g. "(openssl x509 -out cert1; openssl x509 -out cert2) <certs".
4230 *) Make ASN1_UTCTIME_set_string() and ASN1_GENERALIZEDTIME_set_string()
4231 set string type: to handle setting ASN1_TIME structures. Fix ca
4232 utility to correctly initialize revocation date of CRLs.
4235 *) New option SSL_OP_CIPHER_SERVER_PREFERENCE allows the server to override
4236 the clients preferred ciphersuites and rather use its own preferences.
4237 Should help to work around M$ SGC (Server Gated Cryptography) bug in
4238 Internet Explorer by ensuring unchanged hash method during stepup.
4239 (Also replaces the broken/deactivated SSL_OP_NON_EXPORT_FIRST option.)
4242 *) Make mkdef.pl recognise all DECLARE_ASN1 macros, change rijndael
4243 to aes and add a new 'exist' option to print out symbols that don't
4247 *) Additional options to ocsp utility to allow flags to be set and
4248 additional certificates supplied.
4251 *) Add the option -VAfile to 'openssl ocsp', so the user can give the
4252 OCSP client a number of certificate to only verify the response
4256 *) Update Rijndael code to version 3.0 and change EVP AES ciphers to
4257 handle the new API. Currently only ECB, CBC modes supported. Add new
4260 Add TLS AES ciphersuites as described in RFC3268, "Advanced
4261 Encryption Standard (AES) Ciphersuites for Transport Layer
4262 Security (TLS)". (In beta versions of OpenSSL 0.9.7, these were
4263 not enabled by default and were not part of the "ALL" ciphersuite
4264 alias because they were not yet official; they could be
4265 explicitly requested by specifying the "AESdraft" ciphersuite
4266 group alias. In the final release of OpenSSL 0.9.7, the group
4267 alias is called "AES" and is part of "ALL".)
4268 [Ben Laurie, Steve Henson, Bodo Moeller]
4270 *) New function OCSP_copy_nonce() to copy nonce value (if present) from
4271 request to response.
4274 *) Functions for OCSP responders. OCSP_request_onereq_count(),
4275 OCSP_request_onereq_get0(), OCSP_onereq_get0_id() and OCSP_id_get0_info()
4276 extract information from a certificate request. OCSP_response_create()
4277 creates a response and optionally adds a basic response structure.
4278 OCSP_basic_add1_status() adds a complete single response to a basic
4279 response and returns the OCSP_SINGLERESP structure just added (to allow
4280 extensions to be included for example). OCSP_basic_add1_cert() adds a
4281 certificate to a basic response and OCSP_basic_sign() signs a basic
4282 response with various flags. New helper functions ASN1_TIME_check()
4283 (checks validity of ASN1_TIME structure) and ASN1_TIME_to_generalizedtime()
4284 (converts ASN1_TIME to GeneralizedTime).
4287 *) Various new functions. EVP_Digest() combines EVP_Digest{Init,Update,Final}()
4288 in a single operation. X509_get0_pubkey_bitstr() extracts the public_key
4289 structure from a certificate. X509_pubkey_digest() digests the public_key
4290 contents: this is used in various key identifiers.
4293 *) Make sk_sort() tolerate a NULL argument.
4294 [Steve Henson reported by Massimiliano Pala <madwolf@comune.modena.it>]
4296 *) New OCSP verify flag OCSP_TRUSTOTHER. When set the "other" certificates
4297 passed by the function are trusted implicitly. If any of them signed the
4298 response then it is assumed to be valid and is not verified.
4301 *) In PKCS7_set_type() initialise content_type in PKCS7_ENC_CONTENT
4302 to data. This was previously part of the PKCS7 ASN1 code. This
4303 was causing problems with OpenSSL created PKCS#12 and PKCS#7 structures.
4304 [Steve Henson, reported by Kenneth R. Robinette
4305 <support@securenetterm.com>]
4307 *) Add CRYPTO_push_info() and CRYPTO_pop_info() calls to new ASN1
4308 routines: without these tracing memory leaks is very painful.
4309 Fix leaks in PKCS12 and PKCS7 routines.
4312 *) Make X509_time_adj() cope with the new behaviour of ASN1_TIME_new().
4313 Previously it initialised the 'type' argument to V_ASN1_UTCTIME which
4314 effectively meant GeneralizedTime would never be used. Now it
4315 is initialised to -1 but X509_time_adj() now has to check the value
4316 and use ASN1_TIME_set() if the value is not V_ASN1_UTCTIME or
4317 V_ASN1_GENERALIZEDTIME, without this it always uses GeneralizedTime.
4318 [Steve Henson, reported by Kenneth R. Robinette
4319 <support@securenetterm.com>]
4321 *) Fixes to BN_to_ASN1_INTEGER when bn is zero. This would previously
4322 result in a zero length in the ASN1_INTEGER structure which was
4323 not consistent with the structure when d2i_ASN1_INTEGER() was used
4324 and would cause ASN1_INTEGER_cmp() to fail. Enhance s2i_ASN1_INTEGER()
4325 to cope with hex and negative integers. Fix bug in i2a_ASN1_INTEGER()
4326 where it did not print out a minus for negative ASN1_INTEGER.
4329 *) Add summary printout to ocsp utility. The various functions which
4330 convert status values to strings have been renamed to:
4331 OCSP_response_status_str(), OCSP_cert_status_str() and
4332 OCSP_crl_reason_str() and are no longer static. New options
4333 to verify nonce values and to disable verification. OCSP response
4334 printout format cleaned up.
4337 *) Add additional OCSP certificate checks. These are those specified
4338 in RFC2560. This consists of two separate checks: the CA of the
4339 certificate being checked must either be the OCSP signer certificate
4340 or the issuer of the OCSP signer certificate. In the latter case the
4341 OCSP signer certificate must contain the OCSP signing extended key
4342 usage. This check is performed by attempting to match the OCSP
4343 signer or the OCSP signer CA to the issuerNameHash and issuerKeyHash
4344 in the OCSP_CERTID structures of the response.
4347 *) Initial OCSP certificate verification added to OCSP_basic_verify()
4348 and related routines. This uses the standard OpenSSL certificate
4349 verify routines to perform initial checks (just CA validity) and
4350 to obtain the certificate chain. Then additional checks will be
4351 performed on the chain. Currently the root CA is checked to see
4352 if it is explicitly trusted for OCSP signing. This is used to set
4353 a root CA as a global signing root: that is any certificate that
4354 chains to that CA is an acceptable OCSP signing certificate.
4357 *) New '-extfile ...' option to 'openssl ca' for reading X.509v3
4358 extensions from a separate configuration file.
4359 As when reading extensions from the main configuration file,
4360 the '-extensions ...' option may be used for specifying the
4362 [Massimiliano Pala <madwolf@comune.modena.it>]
4364 *) New OCSP utility. Allows OCSP requests to be generated or
4365 read. The request can be sent to a responder and the output
4366 parsed, outputed or printed in text form. Not complete yet:
4367 still needs to check the OCSP response validity.
4370 *) New subcommands for 'openssl ca':
4371 'openssl ca -status <serial>' prints the status of the cert with
4372 the given serial number (according to the index file).
4373 'openssl ca -updatedb' updates the expiry status of certificates
4375 [Massimiliano Pala <madwolf@comune.modena.it>]
4377 *) New '-newreq-nodes' command option to CA.pl. This is like
4378 '-newreq', but calls 'openssl req' with the '-nodes' option
4379 so that the resulting key is not encrypted.
4380 [Damien Miller <djm@mindrot.org>]
4382 *) New configuration for the GNU Hurd.
4383 [Jonathan Bartlett <johnnyb@wolfram.com> via Richard Levitte]
4385 *) Initial code to implement OCSP basic response verify. This
4386 is currently incomplete. Currently just finds the signer's
4387 certificate and verifies the signature on the response.
4390 *) New SSLeay_version code SSLEAY_DIR to determine the compiled-in
4391 value of OPENSSLDIR. This is available via the new '-d' option
4392 to 'openssl version', and is also included in 'openssl version -a'.
4395 *) Allowing defining memory allocation callbacks that will be given
4396 file name and line number information in additional arguments
4397 (a const char* and an int). The basic functionality remains, as
4398 well as the original possibility to just replace malloc(),
4399 realloc() and free() by functions that do not know about these
4400 additional arguments. To register and find out the current
4401 settings for extended allocation functions, the following
4402 functions are provided:
4404 CRYPTO_set_mem_ex_functions
4405 CRYPTO_set_locked_mem_ex_functions
4406 CRYPTO_get_mem_ex_functions
4407 CRYPTO_get_locked_mem_ex_functions
4409 These work the same way as CRYPTO_set_mem_functions and friends.
4410 CRYPTO_get_[locked_]mem_functions now writes 0 where such an
4411 extended allocation function is enabled.
4412 Similarly, CRYPTO_get_[locked_]mem_ex_functions writes 0 where
4413 a conventional allocation function is enabled.
4414 [Richard Levitte, Bodo Moeller]
4416 *) Finish off removing the remaining LHASH function pointer casts.
4417 There should no longer be any prototype-casting required when using
4418 the LHASH abstraction, and any casts that remain are "bugs". See
4419 the callback types and macros at the head of lhash.h for details
4420 (and "OBJ_cleanup" in crypto/objects/obj_dat.c as an example).
4423 *) Add automatic query of EGD sockets in RAND_poll() for the unix variant.
4424 If /dev/[u]random devices are not available or do not return enough
4425 entropy, EGD style sockets (served by EGD or PRNGD) will automatically
4427 The locations /var/run/egd-pool, /dev/egd-pool, /etc/egd-pool, and
4428 /etc/entropy will be queried once each in this sequence, quering stops
4429 when enough entropy was collected without querying more sockets.
4432 *) Change the Unix RAND_poll() variant to be able to poll several
4433 random devices, as specified by DEVRANDOM, until a sufficient amount
4434 of data has been collected. We spend at most 10 ms on each file
4435 (select timeout) and read in non-blocking mode. DEVRANDOM now
4436 defaults to the list "/dev/urandom", "/dev/random", "/dev/srandom"
4437 (previously it was just the string "/dev/urandom"), so on typical
4438 platforms the 10 ms delay will never occur.
4439 Also separate out the Unix variant to its own file, rand_unix.c.
4440 For VMS, there's a currently-empty rand_vms.c.
4443 *) Move OCSP client related routines to ocsp_cl.c. These
4444 provide utility functions which an application needing
4445 to issue a request to an OCSP responder and analyse the
4446 response will typically need: as opposed to those which an
4447 OCSP responder itself would need which will be added later.
4449 OCSP_request_sign() signs an OCSP request with an API similar
4450 to PKCS7_sign(). OCSP_response_status() returns status of OCSP
4451 response. OCSP_response_get1_basic() extracts basic response
4452 from response. OCSP_resp_find_status(): finds and extracts status
4453 information from an OCSP_CERTID structure (which will be created
4454 when the request structure is built). These are built from lower
4455 level functions which work on OCSP_SINGLERESP structures but
4456 wont normally be used unless the application wishes to examine
4457 extensions in the OCSP response for example.
4459 Replace nonce routines with a pair of functions.
4460 OCSP_request_add1_nonce() adds a nonce value and optionally
4461 generates a random value. OCSP_check_nonce() checks the
4462 validity of the nonce in an OCSP response.
4465 *) Change function OCSP_request_add() to OCSP_request_add0_id().
4466 This doesn't copy the supplied OCSP_CERTID and avoids the
4467 need to free up the newly created id. Change return type
4468 to OCSP_ONEREQ to return the internal OCSP_ONEREQ structure.
4469 This can then be used to add extensions to the request.
4470 Deleted OCSP_request_new(), since most of its functionality
4471 is now in OCSP_REQUEST_new() (and the case insensitive name
4472 clash) apart from the ability to set the request name which
4473 will be added elsewhere.
4476 *) Update OCSP API. Remove obsolete extensions argument from
4477 various functions. Extensions are now handled using the new
4478 OCSP extension code. New simple OCSP HTTP function which
4479 can be used to send requests and parse the response.
4482 *) Fix the PKCS#7 (S/MIME) code to work with new ASN1. Two new
4483 ASN1_ITEM structures help with sign and verify. PKCS7_ATTR_SIGN
4484 uses the special reorder version of SET OF to sort the attributes
4485 and reorder them to match the encoded order. This resolves a long
4486 standing problem: a verify on a PKCS7 structure just after signing
4487 it used to fail because the attribute order did not match the
4488 encoded order. PKCS7_ATTR_VERIFY does not reorder the attributes:
4489 it uses the received order. This is necessary to tolerate some broken
4490 software that does not order SET OF. This is handled by encoding
4491 as a SEQUENCE OF but using implicit tagging (with UNIVERSAL class)
4492 to produce the required SET OF.
4495 *) Have mk1mf.pl generate the macros OPENSSL_BUILD_SHLIBCRYPTO and
4496 OPENSSL_BUILD_SHLIBSSL and use them appropriately in the header
4497 files to get correct declarations of the ASN.1 item variables.
4500 *) Rewrite of PKCS#12 code to use new ASN1 functionality. Replace many
4501 PKCS#12 macros with real functions. Fix two unrelated ASN1 bugs:
4502 asn1_check_tlen() would sometimes attempt to use 'ctx' when it was
4503 NULL and ASN1_TYPE was not dereferenced properly in asn1_ex_c2i().
4504 New ASN1 macro: DECLARE_ASN1_ITEM() which just declares the relevant
4505 ASN1_ITEM and no wrapper functions.
4508 *) New functions or ASN1_item_d2i_fp() and ASN1_item_d2i_bio(). These
4509 replace the old function pointer based I/O routines. Change most of
4510 the *_d2i_bio() and *_d2i_fp() functions to use these.
4513 *) Enhance mkdef.pl to be more accepting about spacing in C preprocessor
4514 lines, recognice more "algorithms" that can be deselected, and make
4515 it complain about algorithm deselection that isn't recognised.
4518 *) New ASN1 functions to handle dup, sign, verify, digest, pack and
4519 unpack operations in terms of ASN1_ITEM. Modify existing wrappers
4520 to use new functions. Add NO_ASN1_OLD which can be set to remove
4521 some old style ASN1 functions: this can be used to determine if old
4522 code will still work when these eventually go away.
4525 *) New extension functions for OCSP structures, these follow the
4526 same conventions as certificates and CRLs.
4529 *) New function X509V3_add1_i2d(). This automatically encodes and
4530 adds an extension. Its behaviour can be customised with various
4531 flags to append, replace or delete. Various wrappers added for
4532 certifcates and CRLs.
4535 *) Fix to avoid calling the underlying ASN1 print routine when
4536 an extension cannot be parsed. Correct a typo in the
4537 OCSP_SERVICELOC extension. Tidy up print OCSP format.
4540 *) Make mkdef.pl parse some of the ASN1 macros and add apropriate
4541 entries for variables.
4544 *) Add functionality to apps/openssl.c for detecting locking
4545 problems: As the program is single-threaded, all we have
4546 to do is register a locking callback using an array for
4547 storing which locks are currently held by the program.
4550 *) Use a lock around the call to CRYPTO_get_ex_new_index() in
4551 SSL_get_ex_data_X509_STORE_idx(), which is used in
4552 ssl_verify_cert_chain() and thus can be called at any time
4553 during TLS/SSL handshakes so that thread-safety is essential.
4554 Unfortunately, the ex_data design is not at all suited
4555 for multi-threaded use, so it probably should be abolished.
4558 *) Added Broadcom "ubsec" ENGINE to OpenSSL.
4559 [Broadcom, tweaked and integrated by Geoff Thorpe]
4561 *) Move common extension printing code to new function
4562 X509V3_print_extensions(). Reorganise OCSP print routines and
4563 implement some needed OCSP ASN1 functions. Add OCSP extensions.
4566 *) New function X509_signature_print() to remove duplication in some
4570 *) Add a special meaning when SET OF and SEQUENCE OF flags are both
4571 set (this was treated exactly the same as SET OF previously). This
4572 is used to reorder the STACK representing the structure to match the
4573 encoding. This will be used to get round a problem where a PKCS7
4574 structure which was signed could not be verified because the STACK
4575 order did not reflect the encoded order.
4578 *) Reimplement the OCSP ASN1 module using the new code.
4581 *) Update the X509V3 code to permit the use of an ASN1_ITEM structure
4582 for its ASN1 operations. The old style function pointers still exist
4583 for now but they will eventually go away.
4586 *) Merge in replacement ASN1 code from the ASN1 branch. This almost
4587 completely replaces the old ASN1 functionality with a table driven
4588 encoder and decoder which interprets an ASN1_ITEM structure describing
4589 the ASN1 module. Compatibility with the existing ASN1 API (i2d,d2i) is
4590 largely maintained. Almost all of the old asn1_mac.h macro based ASN1
4591 has also been converted to the new form.
4594 *) Change BN_mod_exp_recp so that negative moduli are tolerated
4595 (the sign is ignored). Similarly, ignore the sign in BN_MONT_CTX_set
4596 so that BN_mod_exp_mont and BN_mod_exp_mont_word work
4597 for negative moduli.
4600 *) Fix BN_uadd and BN_usub: Always return non-negative results instead
4601 of not touching the result's sign bit.
4604 *) BN_div bugfix: If the result is 0, the sign (res->neg) must not be
4608 *) Changed the LHASH code to use prototypes for callbacks, and created
4609 macros to declare and implement thin (optionally static) functions
4610 that provide type-safety and avoid function pointer casting for the
4611 type-specific callbacks.
4614 *) Added Kerberos Cipher Suites to be used with TLS, as written in
4616 [Veers Staats <staatsvr@asc.hpc.mil>,
4617 Jeffrey Altman <jaltman@columbia.edu>, via Richard Levitte]
4619 *) Reformat the FAQ so the different questions and answers can be divided
4620 in sections depending on the subject.
4623 *) Have the zlib compression code load ZLIB.DLL dynamically under
4627 *) New function BN_mod_sqrt for computing square roots modulo a prime
4628 (using the probabilistic Tonelli-Shanks algorithm unless
4629 p == 3 (mod 4) or p == 5 (mod 8), which are cases that can
4630 be handled deterministically).
4631 [Lenka Fibikova <fibikova@exp-math.uni-essen.de>, Bodo Moeller]
4633 *) Make BN_mod_inverse faster by explicitly handling small quotients
4634 in the Euclid loop. (Speed gain about 20% for small moduli [256 or
4635 512 bits], about 30% for larger ones [1024 or 2048 bits].)
4638 *) New function BN_kronecker.
4641 *) Fix BN_gcd so that it works on negative inputs; the result is
4642 positive unless both parameters are zero.
4643 Previously something reasonably close to an infinite loop was
4644 possible because numbers could be growing instead of shrinking
4645 in the implementation of Euclid's algorithm.
4648 *) Fix BN_is_word() and BN_is_one() macros to take into account the
4649 sign of the number in question.
4651 Fix BN_is_word(a,w) to work correctly for w == 0.
4653 The old BN_is_word(a,w) macro is now called BN_abs_is_word(a,w)
4654 because its test if the absolute value of 'a' equals 'w'.
4655 Note that BN_abs_is_word does *not* handle w == 0 reliably;
4656 it exists mostly for use in the implementations of BN_is_zero(),
4657 BN_is_one(), and BN_is_word().
4660 *) New function BN_swap.
4663 *) Use BN_nnmod instead of BN_mod in crypto/bn/bn_exp.c so that
4664 the exponentiation functions are more likely to produce reasonable
4665 results on negative inputs.
4668 *) Change BN_mod_mul so that the result is always non-negative.
4669 Previously, it could be negative if one of the factors was negative;
4670 I don't think anyone really wanted that behaviour.
4673 *) Move BN_mod_... functions into new file crypto/bn/bn_mod.c
4674 (except for exponentiation, which stays in crypto/bn/bn_exp.c,
4675 and BN_mod_mul_reciprocal, which stays in crypto/bn/bn_recp.c)
4676 and add new functions:
4685 BN_mod_lshift1_quick
4689 These functions always generate non-negative results.
4691 BN_nnmod otherwise is like BN_mod (if BN_mod computes a remainder r
4692 such that |m| < r < 0, BN_nnmod will output rem + |m| instead).
4694 BN_mod_XXX_quick(r, a, [b,] m) generates the same result as
4695 BN_mod_XXX(r, a, [b,] m, ctx), but requires that a [and b]
4696 be reduced modulo m.
4697 [Lenka Fibikova <fibikova@exp-math.uni-essen.de>, Bodo Moeller]
4700 The following entry accidentily appeared in the CHANGES file
4701 distributed with OpenSSL 0.9.7. The modifications described in
4702 it do *not* apply to OpenSSL 0.9.7.
4704 *) Remove a few calls to bn_wexpand() in BN_sqr() (the one in there
4705 was actually never needed) and in BN_mul(). The removal in BN_mul()
4706 required a small change in bn_mul_part_recursive() and the addition
4707 of the functions bn_cmp_part_words(), bn_sub_part_words() and
4708 bn_add_part_words(), which do the same thing as bn_cmp_words(),
4709 bn_sub_words() and bn_add_words() except they take arrays with
4714 *) In 'openssl passwd', verify passwords read from the terminal
4715 unless the '-salt' option is used (which usually means that
4716 verification would just waste user's time since the resulting
4717 hash is going to be compared with some given password hash)
4718 or the new '-noverify' option is used.
4720 This is an incompatible change, but it does not affect
4721 non-interactive use of 'openssl passwd' (passwords on the command
4722 line, '-stdin' option, '-in ...' option) and thus should not
4726 *) Remove all references to RSAref, since there's no more need for it.
4729 *) Make DSO load along a path given through an environment variable
4730 (SHLIB_PATH) with shl_load().
4733 *) Constify the ENGINE code as a result of BIGNUM constification.
4734 Also constify the RSA code and most things related to it. In a
4735 few places, most notable in the depth of the ASN.1 code, ugly
4736 casts back to non-const were required (to be solved at a later
4740 *) Make it so the openssl application has all engines loaded by default.
4743 *) Constify the BIGNUM routines a little more.
4746 *) Add the following functions:
4748 ENGINE_load_cswift()
4750 ENGINE_load_atalla()
4752 ENGINE_load_builtin_engines()
4754 That way, an application can itself choose if external engines that
4755 are built-in in OpenSSL shall ever be used or not. The benefit is
4756 that applications won't have to be linked with libdl or other dso
4757 libraries unless it's really needed.
4759 Changed 'openssl engine' to load all engines on demand.
4760 Changed the engine header files to avoid the duplication of some
4761 declarations (they differed!).
4764 *) 'openssl engine' can now list capabilities.
4767 *) Better error reporting in 'openssl engine'.
4770 *) Never call load_dh_param(NULL) in s_server.
4773 *) Add engine application. It can currently list engines by name and
4774 identity, and test if they are actually available.
4777 *) Improve RPM specification file by forcing symbolic linking and making
4778 sure the installed documentation is also owned by root.root.
4779 [Damien Miller <djm@mindrot.org>]
4781 *) Give the OpenSSL applications more possibilities to make use of
4782 keys (public as well as private) handled by engines.
4785 *) Add OCSP code that comes from CertCo.
4788 *) Add VMS support for the Rijndael code.
4791 *) Added untested support for Nuron crypto accelerator.
4794 *) Add support for external cryptographic devices. This code was
4795 previously distributed separately as the "engine" branch.
4796 [Geoff Thorpe, Richard Levitte]
4798 *) Rework the filename-translation in the DSO code. It is now possible to
4799 have far greater control over how a "name" is turned into a filename
4800 depending on the operating environment and any oddities about the
4801 different shared library filenames on each system.
4804 *) Support threads on FreeBSD-elf in Configure.
4807 *) Fix for SHA1 assembly problem with MASM: it produces
4808 warnings about corrupt line number information when assembling
4809 with debugging information. This is caused by the overlapping
4811 [Bernd Matthes <mainbug@celocom.de>, Steve Henson]
4814 NCONF_get_number() has no error checking at all. As a replacement,
4815 NCONF_get_number_e() is defined (_e for "error checking") and is
4816 promoted strongly. The old NCONF_get_number is kept around for
4817 binary backward compatibility.
4818 Make it possible for methods to load from something other than a BIO,
4819 by providing a function pointer that is given a name instead of a BIO.
4820 For example, this could be used to load configuration data from an
4824 *) Fix for non blocking accept BIOs. Added new I/O special reason
4825 BIO_RR_ACCEPT to cover this case. Previously use of accept BIOs
4826 with non blocking I/O was not possible because no retry code was
4827 implemented. Also added new SSL code SSL_WANT_ACCEPT to cover
4831 *) Added the beginnings of Rijndael support.
4834 *) Fix for bug in DirectoryString mask setting. Add support for
4835 X509_NAME_print_ex() in 'req' and X509_print_ex() function
4836 to allow certificate printing to more controllable, additional
4837 'certopt' option to 'x509' to allow new printing options to be
4841 *) Clean old EAY MD5 hack from e_os.h.
4844 Changes between 0.9.6l and 0.9.6m [17 Mar 2004]
4846 *) Fix null-pointer assignment in do_change_cipher_spec() revealed
4847 by using the Codenomicon TLS Test Tool (CVE-2004-0079)
4848 [Joe Orton, Steve Henson]
4850 Changes between 0.9.6k and 0.9.6l [04 Nov 2003]
4852 *) Fix additional bug revealed by the NISCC test suite:
4854 Stop bug triggering large recursion when presented with
4855 certain ASN.1 tags (CVE-2003-0851)
4858 Changes between 0.9.6j and 0.9.6k [30 Sep 2003]
4860 *) Fix various bugs revealed by running the NISCC test suite:
4862 Stop out of bounds reads in the ASN1 code when presented with
4863 invalid tags (CVE-2003-0543 and CVE-2003-0544).
4865 If verify callback ignores invalid public key errors don't try to check
4866 certificate signature with the NULL public key.
4870 *) In ssl3_accept() (ssl/s3_srvr.c) only accept a client certificate
4871 if the server requested one: as stated in TLS 1.0 and SSL 3.0
4875 *) In ssl3_get_client_hello() (ssl/s3_srvr.c), tolerate additional
4876 extra data after the compression methods not only for TLS 1.0
4877 but also for SSL 3.0 (as required by the specification).
4878 [Bodo Moeller; problem pointed out by Matthias Loepfe]
4880 *) Change X509_certificate_type() to mark the key as exported/exportable
4881 when it's 512 *bits* long, not 512 bytes.
4884 Changes between 0.9.6i and 0.9.6j [10 Apr 2003]
4886 *) Countermeasure against the Klima-Pokorny-Rosa extension of
4887 Bleichbacher's attack on PKCS #1 v1.5 padding: treat
4888 a protocol version number mismatch like a decryption error
4889 in ssl3_get_client_key_exchange (ssl/s3_srvr.c).
4892 *) Turn on RSA blinding by default in the default implementation
4893 to avoid a timing attack. Applications that don't want it can call
4894 RSA_blinding_off() or use the new flag RSA_FLAG_NO_BLINDING.
4895 They would be ill-advised to do so in most cases.
4896 [Ben Laurie, Steve Henson, Geoff Thorpe, Bodo Moeller]
4898 *) Change RSA blinding code so that it works when the PRNG is not
4899 seeded (in this case, the secret RSA exponent is abused as
4900 an unpredictable seed -- if it is not unpredictable, there
4901 is no point in blinding anyway). Make RSA blinding thread-safe
4902 by remembering the creator's thread ID in rsa->blinding and
4903 having all other threads use local one-time blinding factors
4904 (this requires more computation than sharing rsa->blinding, but
4905 avoids excessive locking; and if an RSA object is not shared
4906 between threads, blinding will still be very fast).
4909 Changes between 0.9.6h and 0.9.6i [19 Feb 2003]
4911 *) In ssl3_get_record (ssl/s3_pkt.c), minimize information leaked
4912 via timing by performing a MAC computation even if incorrrect
4913 block cipher padding has been found. This is a countermeasure
4914 against active attacks where the attacker has to distinguish
4915 between bad padding and a MAC verification error. (CVE-2003-0078)
4917 [Bodo Moeller; problem pointed out by Brice Canvel (EPFL),
4918 Alain Hiltgen (UBS), Serge Vaudenay (EPFL), and
4919 Martin Vuagnoux (EPFL, Ilion)]
4921 Changes between 0.9.6g and 0.9.6h [5 Dec 2002]
4923 *) New function OPENSSL_cleanse(), which is used to cleanse a section of
4924 memory from it's contents. This is done with a counter that will
4925 place alternating values in each byte. This can be used to solve
4926 two issues: 1) the removal of calls to memset() by highly optimizing
4927 compilers, and 2) cleansing with other values than 0, since those can
4928 be read through on certain media, for example a swap space on disk.
4931 *) Bugfix: client side session caching did not work with external caching,
4932 because the session->cipher setting was not restored when reloading
4933 from the external cache. This problem was masked, when
4934 SSL_OP_NETSCAPE_REUSE_CIPHER_CHANGE_BUG (part of SSL_OP_ALL) was set.
4935 (Found by Steve Haslam <steve@araqnid.ddts.net>.)
4938 *) Fix client_certificate (ssl/s2_clnt.c): The permissible total
4939 length of the REQUEST-CERTIFICATE message is 18 .. 34, not 17 .. 33.
4940 [Zeev Lieber <zeev-l@yahoo.com>]
4942 *) Undo an undocumented change introduced in 0.9.6e which caused
4943 repeated calls to OpenSSL_add_all_ciphers() and
4944 OpenSSL_add_all_digests() to be ignored, even after calling
4948 *) Change the default configuration reader to deal with last line not
4949 being properly terminated.
4952 *) Change X509_NAME_cmp() so it applies the special rules on handling
4953 DN values that are of type PrintableString, as well as RDNs of type
4954 emailAddress where the value has the type ia5String.
4955 [stefank@valicert.com via Richard Levitte]
4957 *) Add a SSL_SESS_CACHE_NO_INTERNAL_STORE flag to take over half
4958 the job SSL_SESS_CACHE_NO_INTERNAL_LOOKUP was inconsistently
4959 doing, define a new flag (SSL_SESS_CACHE_NO_INTERNAL) to be
4960 the bitwise-OR of the two for use by the majority of applications
4961 wanting this behaviour, and update the docs. The documented
4962 behaviour and actual behaviour were inconsistent and had been
4963 changing anyway, so this is more a bug-fix than a behavioural
4965 [Geoff Thorpe, diagnosed by Nadav Har'El]
4967 *) Don't impose a 16-byte length minimum on session IDs in ssl/s3_clnt.c
4968 (the SSL 3.0 and TLS 1.0 specifications allow any length up to 32 bytes).
4971 *) Fix initialization code race conditions in
4972 SSLv23_method(), SSLv23_client_method(), SSLv23_server_method(),
4973 SSLv2_method(), SSLv2_client_method(), SSLv2_server_method(),
4974 SSLv3_method(), SSLv3_client_method(), SSLv3_server_method(),
4975 TLSv1_method(), TLSv1_client_method(), TLSv1_server_method(),
4976 ssl2_get_cipher_by_char(),
4977 ssl3_get_cipher_by_char().
4978 [Patrick McCormick <patrick@tellme.com>, Bodo Moeller]
4980 *) Reorder cleanup sequence in SSL_CTX_free(): only remove the ex_data after
4981 the cached sessions are flushed, as the remove_cb() might use ex_data
4982 contents. Bug found by Sam Varshavchik <mrsam@courier-mta.com>
4983 (see [openssl.org #212]).
4984 [Geoff Thorpe, Lutz Jaenicke]
4986 *) Fix typo in OBJ_txt2obj which incorrectly passed the content
4987 length, instead of the encoding length to d2i_ASN1_OBJECT.
4990 Changes between 0.9.6f and 0.9.6g [9 Aug 2002]
4992 *) [In 0.9.6g-engine release:]
4993 Fix crypto/engine/vendor_defns/cswift.h for WIN32 (use '_stdcall').
4994 [Lynn Gazis <lgazis@rainbow.com>]
4996 Changes between 0.9.6e and 0.9.6f [8 Aug 2002]
4998 *) Fix ASN1 checks. Check for overflow by comparing with LONG_MAX
4999 and get fix the header length calculation.
5000 [Florian Weimer <Weimer@CERT.Uni-Stuttgart.DE>,
5001 Alon Kantor <alonk@checkpoint.com> (and others),
5004 *) Use proper error handling instead of 'assertions' in buffer
5005 overflow checks added in 0.9.6e. This prevents DoS (the
5006 assertions could call abort()).
5007 [Arne Ansper <arne@ats.cyber.ee>, Bodo Moeller]
5009 Changes between 0.9.6d and 0.9.6e [30 Jul 2002]
5011 *) Add various sanity checks to asn1_get_length() to reject
5012 the ASN1 length bytes if they exceed sizeof(long), will appear
5013 negative or the content length exceeds the length of the
5015 [Steve Henson, Adi Stav <stav@mercury.co.il>, James Yonan <jim@ntlp.com>]
5017 *) Fix cipher selection routines: ciphers without encryption had no flags
5018 for the cipher strength set and where therefore not handled correctly
5019 by the selection routines (PR #130).
5022 *) Fix EVP_dsa_sha macro.
5026 SSL_OP_DONT_INSERT_EMPTY_FRAGMENTS
5027 for disabling the SSL 3.0/TLS 1.0 CBC vulnerability countermeasure
5028 that was added in OpenSSL 0.9.6d.
5030 As the countermeasure turned out to be incompatible with some
5031 broken SSL implementations, the new option is part of SSL_OP_ALL.
5032 SSL_OP_ALL is usually employed when compatibility with weird SSL
5033 implementations is desired (e.g. '-bugs' option to 's_client' and
5034 's_server'), so the new option is automatically set in many
5038 *) Changes in security patch:
5040 Changes marked "(CHATS)" were sponsored by the Defense Advanced
5041 Research Projects Agency (DARPA) and Air Force Research Laboratory,
5042 Air Force Materiel Command, USAF, under agreement number
5045 *) Add various sanity checks to asn1_get_length() to reject
5046 the ASN1 length bytes if they exceed sizeof(long), will appear
5047 negative or the content length exceeds the length of the
5048 supplied buffer. (CVE-2002-0659)
5049 [Steve Henson, Adi Stav <stav@mercury.co.il>, James Yonan <jim@ntlp.com>]
5051 *) Assertions for various potential buffer overflows, not known to
5053 [Ben Laurie (CHATS)]
5055 *) Various temporary buffers to hold ASCII versions of integers were
5056 too small for 64 bit platforms. (CVE-2002-0655)
5057 [Matthew Byng-Maddick <mbm@aldigital.co.uk> and Ben Laurie (CHATS)>
5059 *) Remote buffer overflow in SSL3 protocol - an attacker could
5060 supply an oversized session ID to a client. (CVE-2002-0656)
5061 [Ben Laurie (CHATS)]
5063 *) Remote buffer overflow in SSL2 protocol - an attacker could
5064 supply an oversized client master key. (CVE-2002-0656)
5065 [Ben Laurie (CHATS)]
5067 Changes between 0.9.6c and 0.9.6d [9 May 2002]
5069 *) Fix crypto/asn1/a_sign.c so that 'parameters' is omitted (not
5070 encoded as NULL) with id-dsa-with-sha1.
5071 [Nils Larsch <nla@trustcenter.de>; problem pointed out by Bodo Moeller]
5073 *) Check various X509_...() return values in apps/req.c.
5074 [Nils Larsch <nla@trustcenter.de>]
5076 *) Fix BASE64 decode (EVP_DecodeUpdate) for data with CR/LF ended lines:
5077 an end-of-file condition would erronously be flagged, when the CRLF
5078 was just at the end of a processed block. The bug was discovered when
5079 processing data through a buffering memory BIO handing the data to a
5080 BASE64-decoding BIO. Bug fund and patch submitted by Pavel Tsekov
5081 <ptsekov@syntrex.com> and Nedelcho Stanev.
5084 *) Implement a countermeasure against a vulnerability recently found
5085 in CBC ciphersuites in SSL 3.0/TLS 1.0: Send an empty fragment
5086 before application data chunks to avoid the use of known IVs
5087 with data potentially chosen by the attacker.
5090 *) Fix length checks in ssl3_get_client_hello().
5093 *) TLS/SSL library bugfix: use s->s3->in_read_app_data differently
5094 to prevent ssl3_read_internal() from incorrectly assuming that
5095 ssl3_read_bytes() found application data while handshake
5096 processing was enabled when in fact s->s3->in_read_app_data was
5097 merely automatically cleared during the initial handshake.
5098 [Bodo Moeller; problem pointed out by Arne Ansper <arne@ats.cyber.ee>]
5100 *) Fix object definitions for Private and Enterprise: they were not
5101 recognized in their shortname (=lowercase) representation. Extend
5102 obj_dat.pl to issue an error when using undefined keywords instead
5103 of silently ignoring the problem (Svenning Sorensen
5104 <sss@sss.dnsalias.net>).
5107 *) Fix DH_generate_parameters() so that it works for 'non-standard'
5108 generators, i.e. generators other than 2 and 5. (Previously, the
5109 code did not properly initialise the 'add' and 'rem' values to
5110 BN_generate_prime().)
5112 In the new general case, we do not insist that 'generator' is
5113 actually a primitive root: This requirement is rather pointless;
5114 a generator of the order-q subgroup is just as good, if not
5118 *) Map new X509 verification errors to alerts. Discovered and submitted by
5119 Tom Wu <tom@arcot.com>.
5122 *) Fix ssl3_pending() (ssl/s3_lib.c) to prevent SSL_pending() from
5123 returning non-zero before the data has been completely received
5124 when using non-blocking I/O.
5125 [Bodo Moeller; problem pointed out by John Hughes]
5127 *) Some of the ciphers missed the strength entry (SSL_LOW etc).
5128 [Ben Laurie, Lutz Jaenicke]
5130 *) Fix bug in SSL_clear(): bad sessions were not removed (found by
5131 Yoram Zahavi <YoramZ@gilian.com>).
5134 *) Add information about CygWin 1.3 and on, and preserve proper
5135 configuration for the versions before that.
5136 [Corinna Vinschen <vinschen@redhat.com> and Richard Levitte]
5138 *) Make removal from session cache (SSL_CTX_remove_session()) more robust:
5139 check whether we deal with a copy of a session and do not delete from
5140 the cache in this case. Problem reported by "Izhar Shoshani Levi"
5141 <izhar@checkpoint.com>.
5144 *) Do not store session data into the internal session cache, if it
5145 is never intended to be looked up (SSL_SESS_CACHE_NO_INTERNAL_LOOKUP
5146 flag is set). Proposed by Aslam <aslam@funk.com>.
5149 *) Have ASN1_BIT_STRING_set_bit() really clear a bit when the requested
5153 *) [In 0.9.6d-engine release:]
5154 Fix a crashbug and a logic bug in hwcrhk_load_pubkey().
5155 [Toomas Kiisk <vix@cyber.ee> via Richard Levitte]
5157 *) Add the configuration target linux-s390x.
5158 [Neale Ferguson <Neale.Ferguson@SoftwareAG-USA.com> via Richard Levitte]
5160 *) The earlier bugfix for the SSL3_ST_SW_HELLO_REQ_C case of
5161 ssl3_accept (ssl/s3_srvr.c) incorrectly used a local flag
5162 variable as an indication that a ClientHello message has been
5163 received. As the flag value will be lost between multiple
5164 invocations of ssl3_accept when using non-blocking I/O, the
5165 function may not be aware that a handshake has actually taken
5166 place, thus preventing a new session from being added to the
5169 To avoid this problem, we now set s->new_session to 2 instead of
5170 using a local variable.
5171 [Lutz Jaenicke, Bodo Moeller]
5173 *) Bugfix: Return -1 from ssl3_get_server_done (ssl3/s3_clnt.c)
5174 if the SSL_R_LENGTH_MISMATCH error is detected.
5175 [Geoff Thorpe, Bodo Moeller]
5177 *) New 'shared_ldflag' column in Configure platform table.
5180 *) Fix EVP_CIPHER_mode macro.
5181 ["Dan S. Camper" <dan@bti.net>]
5183 *) Fix ssl3_read_bytes (ssl/s3_pkt.c): To ignore messages of unknown
5184 type, we must throw them away by setting rr->length to 0.
5185 [D P Chang <dpc@qualys.com>]
5187 Changes between 0.9.6b and 0.9.6c [21 dec 2001]
5189 *) Fix BN_rand_range bug pointed out by Dominikus Scherkl
5190 <Dominikus.Scherkl@biodata.com>. (The previous implementation
5191 worked incorrectly for those cases where range = 10..._2 and
5192 3*range is two bits longer than range.)
5195 *) Only add signing time to PKCS7 structures if it is not already
5199 *) Fix crypto/objects/objects.h: "ld-ce" should be "id-ce",
5200 OBJ_ld_ce should be OBJ_id_ce.
5201 Also some ip-pda OIDs in crypto/objects/objects.txt were
5202 incorrect (cf. RFC 3039).
5203 [Matt Cooper, Frederic Giudicelli, Bodo Moeller]
5205 *) Release CRYPTO_LOCK_DYNLOCK when CRYPTO_destroy_dynlockid()
5206 returns early because it has nothing to do.
5207 [Andy Schneider <andy.schneider@bjss.co.uk>]
5209 *) [In 0.9.6c-engine release:]
5210 Fix mutex callback return values in crypto/engine/hw_ncipher.c.
5211 [Andy Schneider <andy.schneider@bjss.co.uk>]
5213 *) [In 0.9.6c-engine release:]
5214 Add support for Cryptographic Appliance's keyserver technology.
5215 (Use engine 'keyclient')
5216 [Cryptographic Appliances and Geoff Thorpe]
5218 *) Add a configuration entry for OS/390 Unix. The C compiler 'c89'
5219 is called via tools/c89.sh because arguments have to be
5220 rearranged (all '-L' options must appear before the first object
5222 [Richard Shapiro <rshapiro@abinitio.com>]
5224 *) [In 0.9.6c-engine release:]
5225 Add support for Broadcom crypto accelerator cards, backported
5227 [Broadcom, Nalin Dahyabhai <nalin@redhat.com>, Mark Cox]
5229 *) [In 0.9.6c-engine release:]
5230 Add support for SureWare crypto accelerator cards from
5231 Baltimore Technologies. (Use engine 'sureware')
5232 [Baltimore Technologies and Mark Cox]
5234 *) [In 0.9.6c-engine release:]
5235 Add support for crypto accelerator cards from Accelerated
5236 Encryption Processing, www.aep.ie. (Use engine 'aep')
5237 [AEP Inc. and Mark Cox]
5239 *) Add a configuration entry for gcc on UnixWare.
5240 [Gary Benson <gbenson@redhat.com>]
5242 *) Change ssl/s2_clnt.c and ssl/s2_srvr.c so that received handshake
5243 messages are stored in a single piece (fixed-length part and
5244 variable-length part combined) and fix various bugs found on the way.
5247 *) Disable caching in BIO_gethostbyname(), directly use gethostbyname()
5248 instead. BIO_gethostbyname() does not know what timeouts are
5249 appropriate, so entries would stay in cache even when they have
5251 [Bodo Moeller; problem pointed out by Rich Salz <rsalz@zolera.com>
5253 *) Change ssl23_get_client_hello (ssl/s23_srvr.c) behaviour when
5254 faced with a pathologically small ClientHello fragment that does
5255 not contain client_version: Instead of aborting with an error,
5256 simply choose the highest available protocol version (i.e.,
5257 TLS 1.0 unless it is disabled). In practice, ClientHello
5258 messages are never sent like this, but this change gives us
5259 strictly correct behaviour at least for TLS.
5262 *) Fix SSL handshake functions and SSL_clear() such that SSL_clear()
5263 never resets s->method to s->ctx->method when called from within
5264 one of the SSL handshake functions.
5265 [Bodo Moeller; problem pointed out by Niko Baric]
5267 *) In ssl3_get_client_hello (ssl/s3_srvr.c), generate a fatal alert
5268 (sent using the client's version number) if client_version is
5269 smaller than the protocol version in use. Also change
5270 ssl23_get_client_hello (ssl/s23_srvr.c) to select TLS 1.0 if
5271 the client demanded SSL 3.0 but only TLS 1.0 is enabled; then
5272 the client will at least see that alert.
5275 *) Fix ssl3_get_message (ssl/s3_both.c) to handle message fragmentation
5279 *) Avoid infinite loop in ssl3_get_message (ssl/s3_both.c) if a
5280 client receives HelloRequest while in a handshake.
5281 [Bodo Moeller; bug noticed by Andy Schneider <andy.schneider@bjss.co.uk>]
5283 *) Bugfix in ssl3_accept (ssl/s3_srvr.c): Case SSL3_ST_SW_HELLO_REQ_C
5284 should end in 'break', not 'goto end' which circuments various
5285 cleanups done in state SSL_ST_OK. But session related stuff
5286 must be disabled for SSL_ST_OK in the case that we just sent a
5289 Also avoid some overhead by not calling ssl_init_wbio_buffer()
5290 before just sending a HelloRequest.
5291 [Bodo Moeller, Eric Rescorla <ekr@rtfm.com>]
5293 *) Fix ssl/s3_enc.c, ssl/t1_enc.c and ssl/s3_pkt.c so that we don't
5294 reveal whether illegal block cipher padding was found or a MAC
5295 verification error occured. (Neither SSLerr() codes nor alerts
5296 are directly visible to potential attackers, but the information
5297 may leak via logfiles.)
5299 Similar changes are not required for the SSL 2.0 implementation
5300 because the number of padding bytes is sent in clear for SSL 2.0,
5301 and the extra bytes are just ignored. However ssl/s2_pkt.c
5302 failed to verify that the purported number of padding bytes is in
5306 *) Add OpenUNIX-8 support including shared libraries
5307 (Boyd Lynn Gerber <gerberb@zenez.com>).
5310 *) Improve RSA_padding_check_PKCS1_OAEP() check again to avoid
5311 'wristwatch attack' using huge encoding parameters (cf.
5312 James H. Manger's CRYPTO 2001 paper). Note that the
5313 RSA_PKCS1_OAEP_PADDING case of RSA_private_decrypt() does not use
5314 encoding parameters and hence was not vulnerable.
5317 *) BN_sqr() bug fix.
5318 [Ulf Möller, reported by Jim Ellis <jim.ellis@cavium.com>]
5320 *) Rabin-Miller test analyses assume uniformly distributed witnesses,
5321 so use BN_pseudo_rand_range() instead of using BN_pseudo_rand()
5322 followed by modular reduction.
5323 [Bodo Moeller; pointed out by Adam Young <AYoung1@NCSUS.JNJ.COM>]
5325 *) Add BN_pseudo_rand_range() with obvious functionality: BN_rand_range()
5326 equivalent based on BN_pseudo_rand() instead of BN_rand().
5329 *) s3_srvr.c: allow sending of large client certificate lists (> 16 kB).
5330 This function was broken, as the check for a new client hello message
5331 to handle SGC did not allow these large messages.
5332 (Tracked down by "Douglas E. Engert" <deengert@anl.gov>.)
5335 *) Add alert descriptions for TLSv1 to SSL_alert_desc_string[_long]().
5338 *) Fix buggy behaviour of BIO_get_num_renegotiates() and BIO_ctrl()
5339 for BIO_C_GET_WRITE_BUF_SIZE ("Stephen Hinton" <shinton@netopia.com>).
5342 *) Rework the configuration and shared library support for Tru64 Unix.
5343 The configuration part makes use of modern compiler features and
5344 still retains old compiler behavior for those that run older versions
5345 of the OS. The shared library support part includes a variant that
5346 uses the RPATH feature, and is available through the special
5347 configuration target "alpha-cc-rpath", which will never be selected
5349 [Tim Mooney <mooney@dogbert.cc.ndsu.NoDak.edu> via Richard Levitte]
5351 *) In ssl3_get_key_exchange (ssl/s3_clnt.c), call ssl3_get_message()
5352 with the same message size as in ssl3_get_certificate_request().
5353 Otherwise, if no ServerKeyExchange message occurs, CertificateRequest
5354 messages might inadvertently be reject as too long.
5355 [Petr Lampa <lampa@fee.vutbr.cz>]
5357 *) Enhanced support for IA-64 Unix platforms (well, Linux and HP-UX).
5360 *) Modified SSL library such that the verify_callback that has been set
5361 specificly for an SSL object with SSL_set_verify() is actually being
5362 used. Before the change, a verify_callback set with this function was
5363 ignored and the verify_callback() set in the SSL_CTX at the time of
5364 the call was used. New function X509_STORE_CTX_set_verify_cb() introduced
5365 to allow the necessary settings.
5368 *) Initialize static variable in crypto/dsa/dsa_lib.c and crypto/dh/dh_lib.c
5369 explicitly to NULL, as at least on Solaris 8 this seems not always to be
5370 done automatically (in contradiction to the requirements of the C
5371 standard). This made problems when used from OpenSSH.
5374 *) In OpenSSL 0.9.6a and 0.9.6b, crypto/dh/dh_key.c ignored
5375 dh->length and always used
5377 BN_rand_range(priv_key, dh->p).
5379 BN_rand_range() is not necessary for Diffie-Hellman, and this
5380 specific range makes Diffie-Hellman unnecessarily inefficient if
5381 dh->length (recommended exponent length) is much smaller than the
5382 length of dh->p. We could use BN_rand_range() if the order of
5383 the subgroup was stored in the DH structure, but we only have
5388 BN_rand(priv_key, l, ...)
5390 where 'l' is dh->length if this is defined, or BN_num_bits(dh->p)-1
5396 RSA_eay_public_encrypt
5397 RSA_eay_private_decrypt
5398 RSA_eay_private_encrypt (signing)
5399 RSA_eay_public_decrypt (signature verification)
5401 (default implementations for RSA_public_encrypt,
5402 RSA_private_decrypt, RSA_private_encrypt, RSA_public_decrypt),
5403 always reject numbers >= n.
5406 *) In crypto/rand/md_rand.c, use a new short-time lock CRYPTO_LOCK_RAND2
5407 to synchronize access to 'locking_thread'. This is necessary on
5408 systems where access to 'locking_thread' (an 'unsigned long'
5409 variable) is not atomic.
5412 *) In crypto/rand/md_rand.c, set 'locking_thread' to current thread's ID
5413 *before* setting the 'crypto_lock_rand' flag. The previous code had
5414 a race condition if 0 is a valid thread ID.
5415 [Travis Vitek <vitek@roguewave.com>]
5417 *) Add support for shared libraries under Irix.
5418 [Albert Chin-A-Young <china@thewrittenword.com>]
5420 *) Add configuration option to build on Linux on both big-endian and
5422 [Ralf Baechle <ralf@uni-koblenz.de>]
5424 *) Add the possibility to create shared libraries on HP-UX.
5427 Changes between 0.9.6a and 0.9.6b [9 Jul 2001]
5429 *) Change ssleay_rand_bytes (crypto/rand/md_rand.c)
5430 to avoid a SSLeay/OpenSSL PRNG weakness pointed out by
5431 Markku-Juhani O. Saarinen <markku-juhani.saarinen@nokia.com>:
5432 PRNG state recovery was possible based on the output of
5433 one PRNG request appropriately sized to gain knowledge on
5434 'md' followed by enough consecutive 1-byte PRNG requests
5435 to traverse all of 'state'.
5437 1. When updating 'md_local' (the current thread's copy of 'md')
5438 during PRNG output generation, hash all of the previous
5439 'md_local' value, not just the half used for PRNG output.
5441 2. Make the number of bytes from 'state' included into the hash
5442 independent from the number of PRNG bytes requested.
5444 The first measure alone would be sufficient to avoid
5445 Markku-Juhani's attack. (Actually it had never occurred
5446 to me that the half of 'md_local' used for chaining was the
5447 half from which PRNG output bytes were taken -- I had always
5448 assumed that the secret half would be used.) The second
5449 measure makes sure that additional data from 'state' is never
5450 mixed into 'md_local' in small portions; this heuristically
5451 further strengthens the PRNG.
5454 *) Fix crypto/bn/asm/mips3.s.
5457 *) When only the key is given to "enc", the IV is undefined. Print out
5458 an error message in this case.
5461 *) Handle special case when X509_NAME is empty in X509 printing routines.
5464 *) In dsa_do_verify (crypto/dsa/dsa_ossl.c), verify that r and s are
5465 positive and less than q.
5468 *) Don't change *pointer in CRYPTO_add_lock() is add_lock_callback is
5469 used: it isn't thread safe and the add_lock_callback should handle
5471 [Paul Rose <Paul.Rose@bridge.com>]
5473 *) Verify that incoming data obeys the block size in
5474 ssl3_enc (ssl/s3_enc.c) and tls1_enc (ssl/t1_enc.c).
5478 [Ulf Möller, Bodo Möller]
5480 *) The countermeasure against Bleichbacher's attack on PKCS #1 v1.5
5481 RSA encryption was accidentally removed in s3_srvr.c in OpenSSL 0.9.5
5482 when fixing the server behaviour for backwards-compatible 'client
5483 hello' messages. (Note that the attack is impractical against
5484 SSL 3.0 and TLS 1.0 anyway because length and version checking
5485 means that the probability of guessing a valid ciphertext is
5486 around 2^-40; see section 5 in Bleichenbacher's CRYPTO '98
5489 Before 0.9.5, the countermeasure (hide the error by generating a
5490 random 'decryption result') did not work properly because
5491 ERR_clear_error() was missing, meaning that SSL_get_error() would
5492 detect the supposedly ignored error.
5494 Both problems are now fixed.
5497 *) In crypto/bio/bf_buff.c, increase DEFAULT_BUFFER_SIZE to 4096
5498 (previously it was 1024).
5501 *) Fix for compatibility mode trust settings: ignore trust settings
5502 unless some valid trust or reject settings are present.
5505 *) Fix for blowfish EVP: its a variable length cipher.
5508 *) Fix various bugs related to DSA S/MIME verification. Handle missing
5509 parameters in DSA public key structures and return an error in the
5510 DSA routines if parameters are absent.
5513 *) In versions up to 0.9.6, RAND_file_name() resorted to file ".rnd"
5514 in the current directory if neither $RANDFILE nor $HOME was set.
5515 RAND_file_name() in 0.9.6a returned NULL in this case. This has
5516 caused some confusion to Windows users who haven't defined $HOME.
5517 Thus RAND_file_name() is changed again: e_os.h can define a
5518 DEFAULT_HOME, which will be used if $HOME is not set.
5519 For Windows, we use "C:"; on other platforms, we still require
5520 environment variables.
5522 *) Move 'if (!initialized) RAND_poll()' into regions protected by
5523 CRYPTO_LOCK_RAND. This is not strictly necessary, but avoids
5524 having multiple threads call RAND_poll() concurrently.
5527 *) In crypto/rand/md_rand.c, replace 'add_do_not_lock' flag by a
5528 combination of a flag and a thread ID variable.
5529 Otherwise while one thread is in ssleay_rand_bytes (which sets the
5530 flag), *other* threads can enter ssleay_add_bytes without obeying
5531 the CRYPTO_LOCK_RAND lock (and may even illegally release the lock
5532 that they do not hold after the first thread unsets add_do_not_lock).
5535 *) Change bctest again: '-x' expressions are not available in all
5539 Changes between 0.9.6 and 0.9.6a [5 Apr 2001]
5541 *) Fix a couple of memory leaks in PKCS7_dataDecode()
5542 [Steve Henson, reported by Heyun Zheng <hzheng@atdsprint.com>]
5544 *) Change Configure and Makefiles to provide EXE_EXT, which will contain
5545 the default extension for executables, if any. Also, make the perl
5546 scripts that use symlink() to test if it really exists and use "cp"
5547 if it doesn't. All this made OpenSSL compilable and installable in
5551 *) Fix for asn1_GetSequence() for indefinite length constructed data.
5552 If SEQUENCE is length is indefinite just set c->slen to the total
5553 amount of data available.
5554 [Steve Henson, reported by shige@FreeBSD.org]
5555 [This change does not apply to 0.9.7.]
5557 *) Change bctest to avoid here-documents inside command substitution
5558 (workaround for FreeBSD /bin/sh bug).
5559 For compatibility with Ultrix, avoid shell functions (introduced
5560 in the bctest version that searches along $PATH).
5563 *) Rename 'des_encrypt' to 'des_encrypt1'. This avoids the clashes
5564 with des_encrypt() defined on some operating systems, like Solaris
5568 *) Check the result of RSA-CRT (see D. Boneh, R. DeMillo, R. Lipton:
5569 On the Importance of Eliminating Errors in Cryptographic
5570 Computations, J. Cryptology 14 (2001) 2, 101-119,
5571 http://theory.stanford.edu/~dabo/papers/faults.ps.gz).
5574 *) MIPS assembler BIGNUM division bug fix.
5577 *) Disabled incorrect Alpha assembler code.
5580 *) Fix PKCS#7 decode routines so they correctly update the length
5581 after reading an EOC for the EXPLICIT tag.
5583 [This change does not apply to 0.9.7.]
5585 *) Fix bug in PKCS#12 key generation routines. This was triggered
5586 if a 3DES key was generated with a 0 initial byte. Include
5587 PKCS12_BROKEN_KEYGEN compilation option to retain the old
5588 (but broken) behaviour.
5591 *) Enhance bctest to search for a working bc along $PATH and print
5593 [Tim Rice <tim@multitalents.net> via Richard Levitte]
5595 *) Fix memory leaks in err.c: free err_data string if necessary;
5596 don't write to the wrong index in ERR_set_error_data.
5599 *) Implement ssl23_peek (analogous to ssl23_read), which previously
5603 *) Replace rdtsc with _emit statements for VC++ version 5.
5604 [Jeremy Cooper <jeremy@baymoo.org>]
5606 *) Make it possible to reuse SSLv2 sessions.
5609 *) In copy_email() check for >= 0 as a return value for
5610 X509_NAME_get_index_by_NID() since 0 is a valid index.
5611 [Steve Henson reported by Massimiliano Pala <madwolf@opensca.org>]
5613 *) Avoid coredump with unsupported or invalid public keys by checking if
5614 X509_get_pubkey() fails in PKCS7_verify(). Fix memory leak when
5615 PKCS7_verify() fails with non detached data.
5618 *) Don't use getenv in library functions when run as setuid/setgid.
5619 New function OPENSSL_issetugid().
5622 *) Avoid false positives in memory leak detection code (crypto/mem_dbg.c)
5623 due to incorrect handling of multi-threading:
5625 1. Fix timing glitch in the MemCheck_off() portion of CRYPTO_mem_ctrl().
5627 2. Fix logical glitch in is_MemCheck_on() aka CRYPTO_is_mem_check_on().
5629 3. Count how many times MemCheck_off() has been called so that
5630 nested use can be treated correctly. This also avoids
5631 inband-signalling in the previous code (which relied on the
5632 assumption that thread ID 0 is impossible).
5635 *) Add "-rand" option also to s_client and s_server.
5638 *) Fix CPU detection on Irix 6.x.
5639 [Kurt Hockenbury <khockenb@stevens-tech.edu> and
5640 "Bruce W. Forsberg" <bruce.forsberg@baesystems.com>]
5642 *) Fix X509_NAME bug which produced incorrect encoding if X509_NAME
5645 [This change does not apply to 0.9.7.]
5647 *) Use the cached encoding of an X509_NAME structure rather than
5648 copying it. This is apparently the reason for the libsafe "errors"
5649 but the code is actually correct.
5652 *) Add new function BN_rand_range(), and fix DSA_sign_setup() to prevent
5653 Bleichenbacher's DSA attack.
5654 Extend BN_[pseudo_]rand: As before, top=1 forces the highest two bits
5655 to be set and top=0 forces the highest bit to be set; top=-1 is new
5656 and leaves the highest bit random.
5657 [Ulf Moeller, Bodo Moeller]
5659 *) In the NCONF_...-based implementations for CONF_... queries
5660 (crypto/conf/conf_lib.c), if the input LHASH is NULL, avoid using
5661 a temporary CONF structure with the data component set to NULL
5662 (which gives segmentation faults in lh_retrieve).
5663 Instead, use NULL for the CONF pointer in CONF_get_string and
5664 CONF_get_number (which may use environment variables) and directly
5665 return NULL from CONF_get_section.
5668 *) Fix potential buffer overrun for EBCDIC.
5671 *) Tolerate nonRepudiation as being valid for S/MIME signing and certSign
5672 keyUsage if basicConstraints absent for a CA.
5675 *) Make SMIME_write_PKCS7() write mail header values with a format that
5676 is more generally accepted (no spaces before the semicolon), since
5677 some programs can't parse those values properly otherwise. Also make
5678 sure BIO's that break lines after each write do not create invalid
5682 *) Make the CRL encoding routines work with empty SEQUENCE OF. The
5683 macros previously used would not encode an empty SEQUENCE OF
5684 and break the signature.
5686 [This change does not apply to 0.9.7.]
5688 *) Zero the premaster secret after deriving the master secret in
5692 *) Add some EVP_add_digest_alias registrations (as found in
5693 OpenSSL_add_all_digests()) to SSL_library_init()
5694 aka OpenSSL_add_ssl_algorithms(). This provides improved
5695 compatibility with peers using X.509 certificates
5696 with unconventional AlgorithmIdentifier OIDs.
5699 *) Fix for Irix with NO_ASM.
5700 ["Bruce W. Forsberg" <bruce.forsberg@baesystems.com>]
5702 *) ./config script fixes.
5703 [Ulf Moeller, Richard Levitte]
5705 *) Fix 'openssl passwd -1'.
5708 *) Change PKCS12_key_gen_asc() so it can cope with non null
5709 terminated strings whose length is passed in the passlen
5710 parameter, for example from PEM callbacks. This was done
5711 by adding an extra length parameter to asc2uni().
5712 [Steve Henson, reported by <oddissey@samsung.co.kr>]
5714 *) Fix C code generated by 'openssl dsaparam -C': If a BN_bin2bn
5715 call failed, free the DSA structure.
5718 *) Fix to uni2asc() to cope with zero length Unicode strings.
5719 These are present in some PKCS#12 files.
5722 *) Increase s2->wbuf allocation by one byte in ssl2_new (ssl/s2_lib.c).
5723 Otherwise do_ssl_write (ssl/s2_pkt.c) will write beyond buffer limits
5724 when writing a 32767 byte record.
5725 [Bodo Moeller; problem reported by Eric Day <eday@concentric.net>]
5727 *) In RSA_eay_public_{en,ed}crypt and RSA_eay_mod_exp (rsa_eay.c),
5728 obtain lock CRYPTO_LOCK_RSA before setting rsa->_method_mod_{n,p,q}.
5730 (RSA objects have a reference count access to which is protected
5731 by CRYPTO_LOCK_RSA [see rsa_lib.c, s3_srvr.c, ssl_cert.c, ssl_rsa.c],
5732 so they are meant to be shared between threads.)
5733 [Bodo Moeller, Geoff Thorpe; original patch submitted by
5734 "Reddie, Steven" <Steven.Reddie@ca.com>]
5736 *) Fix a deadlock in CRYPTO_mem_leaks().
5739 *) Use better test patterns in bntest.
5742 *) rand_win.c fix for Borland C.
5745 *) BN_rshift bugfix for n == 0.
5748 *) Add a 'bctest' script that checks for some known 'bc' bugs
5749 so that 'make test' does not abort just because 'bc' is broken.
5752 *) Store verify_result within SSL_SESSION also for client side to
5753 avoid potential security hole. (Re-used sessions on the client side
5754 always resulted in verify_result==X509_V_OK, not using the original
5755 result of the server certificate verification.)
5758 *) Fix ssl3_pending: If the record in s->s3->rrec is not of type
5759 SSL3_RT_APPLICATION_DATA, return 0.
5760 Similarly, change ssl2_pending to return 0 if SSL_in_init(s) is true.
5764 Both ssl2_peek and ssl3_peek, which were totally broken in earlier
5765 releases, have been re-implemented by renaming the previous
5766 implementations of ssl2_read and ssl3_read to ssl2_read_internal
5767 and ssl3_read_internal, respectively, and adding 'peek' parameters
5768 to them. The new ssl[23]_{read,peek} functions are calls to
5769 ssl[23]_read_internal with the 'peek' flag set appropriately.
5770 A 'peek' parameter has also been added to ssl3_read_bytes, which
5771 does the actual work for ssl3_read_internal.
5774 *) Initialise "ex_data" member of RSA/DSA/DH structures prior to calling
5775 the method-specific "init()" handler. Also clean up ex_data after
5776 calling the method-specific "finish()" handler. Previously, this was
5777 happening the other way round.
5780 *) Increase BN_CTX_NUM (the number of BIGNUMs in a BN_CTX) to 16.
5781 The previous value, 12, was not always sufficient for BN_mod_exp().
5784 *) Make sure that shared libraries get the internal name engine with
5785 the full version number and not just 0. This should mark the
5786 shared libraries as not backward compatible. Of course, this should
5787 be changed again when we can guarantee backward binary compatibility.
5790 *) Fix typo in get_cert_by_subject() in by_dir.c
5791 [Jean-Marc Desperrier <jean-marc.desperrier@certplus.com>]
5793 *) Rework the system to generate shared libraries:
5795 - Make note of the expected extension for the shared libraries and
5796 if there is a need for symbolic links from for example libcrypto.so.0
5797 to libcrypto.so.0.9.7. There is extended info in Configure for
5800 - Make as few rebuilds of the shared libraries as possible.
5802 - Still avoid linking the OpenSSL programs with the shared libraries.
5804 - When installing, install the shared libraries separately from the
5808 *) Fix SSL_CTX_set_read_ahead macro to actually use its argument.
5810 Copy SSL_CTX's read_ahead flag to SSL object directly in SSL_new
5811 and not in SSL_clear because the latter is also used by the
5812 accept/connect functions; previously, the settings made by
5813 SSL_set_read_ahead would be lost during the handshake.
5814 [Bodo Moeller; problems reported by Anders Gertz <gertz@epact.se>]
5816 *) Correct util/mkdef.pl to be selective about disabled algorithms.
5817 Previously, it would create entries for disableed algorithms no
5821 *) Added several new manual pages for SSL_* function.
5824 Changes between 0.9.5a and 0.9.6 [24 Sep 2000]
5826 *) In ssl23_get_client_hello, generate an error message when faced
5827 with an initial SSL 3.0/TLS record that is too small to contain the
5828 first two bytes of the ClientHello message, i.e. client_version.
5829 (Note that this is a pathologic case that probably has never happened
5830 in real life.) The previous approach was to use the version number
5831 from the record header as a substitute; but our protocol choice
5832 should not depend on that one because it is not authenticated
5833 by the Finished messages.
5836 *) More robust randomness gathering functions for Windows.
5837 [Jeffrey Altman <jaltman@columbia.edu>]
5839 *) For compatibility reasons if the flag X509_V_FLAG_ISSUER_CHECK is
5840 not set then we don't setup the error code for issuer check errors
5841 to avoid possibly overwriting other errors which the callback does
5842 handle. If an application does set the flag then we assume it knows
5843 what it is doing and can handle the new informational codes
5847 *) Fix for a nasty bug in ASN1_TYPE handling. ASN1_TYPE is used for
5848 a general "ANY" type, as such it should be able to decode anything
5849 including tagged types. However it didn't check the class so it would
5850 wrongly interpret tagged types in the same way as their universal
5851 counterpart and unknown types were just rejected. Changed so that the
5852 tagged and unknown types are handled in the same way as a SEQUENCE:
5853 that is the encoding is stored intact. There is also a new type
5854 "V_ASN1_OTHER" which is used when the class is not universal, in this
5855 case we have no idea what the actual type is so we just lump them all
5859 *) On VMS, stdout may very well lead to a file that is written to
5860 in a record-oriented fashion. That means that every write() will
5861 write a separate record, which will be read separately by the
5862 programs trying to read from it. This can be very confusing.
5864 The solution is to put a BIO filter in the way that will buffer
5865 text until a linefeed is reached, and then write everything a
5866 line at a time, so every record written will be an actual line,
5867 not chunks of lines and not (usually doesn't happen, but I've
5868 seen it once) several lines in one record. BIO_f_linebuffer() is
5871 Currently, it's a VMS-only method, because that's where it has
5872 been tested well enough.
5875 *) Remove 'optimized' squaring variant in BN_mod_mul_montgomery,
5876 it can return incorrect results.
5877 (Note: The buggy variant was not enabled in OpenSSL 0.9.5a,
5878 but it was in 0.9.6-beta[12].)
5881 *) Disable the check for content being present when verifying detached
5882 signatures in pk7_smime.c. Some versions of Netscape (wrongly)
5883 include zero length content when signing messages.
5886 *) New BIO_shutdown_wr macro, which invokes the BIO_C_SHUTDOWN_WR
5887 BIO_ctrl (for BIO pairs).
5890 *) Add DSO method for VMS.
5893 *) Bug fix: Montgomery multiplication could produce results with the
5897 *) Add RPM specification openssl.spec and modify it to build three
5898 packages. The default package contains applications, application
5899 documentation and run-time libraries. The devel package contains
5900 include files, static libraries and function documentation. The
5901 doc package contains the contents of the doc directory. The original
5902 openssl.spec was provided by Damien Miller <djm@mindrot.org>.
5905 *) Add a large number of documentation files for many SSL routines.
5906 [Lutz Jaenicke <Lutz.Jaenicke@aet.TU-Cottbus.DE>]
5908 *) Add a configuration entry for Sony News 4.
5909 [NAKAJI Hiroyuki <nakaji@tutrp.tut.ac.jp>]
5911 *) Don't set the two most significant bits to one when generating a
5912 random number < q in the DSA library.
5915 *) New SSL API mode 'SSL_MODE_AUTO_RETRY'. This disables the default
5916 behaviour that SSL_read may result in SSL_ERROR_WANT_READ (even if
5917 the underlying transport is blocking) if a handshake took place.
5918 (The default behaviour is needed by applications such as s_client
5919 and s_server that use select() to determine when to use SSL_read;
5920 but for applications that know in advance when to expect data, it
5921 just makes things more complicated.)
5924 *) Add RAND_egd_bytes(), which gives control over the number of bytes read
5928 *) Add a few more EBCDIC conditionals that make `req' and `x509'
5929 work better on such systems.
5930 [Martin Kraemer <Martin.Kraemer@MchP.Siemens.De>]
5932 *) Add two demo programs for PKCS12_parse() and PKCS12_create().
5933 Update PKCS12_parse() so it copies the friendlyName and the
5934 keyid to the certificates aux info.
5937 *) Fix bug in PKCS7_verify() which caused an infinite loop
5938 if there was more than one signature.
5939 [Sven Uszpelkat <su@celocom.de>]
5941 *) Major change in util/mkdef.pl to include extra information
5942 about each symbol, as well as presentig variables as well
5943 as functions. This change means that there's n more need
5944 to rebuild the .num files when some algorithms are excluded.
5947 *) Allow the verify time to be set by an application,
5948 rather than always using the current time.
5951 *) Phase 2 verify code reorganisation. The certificate
5952 verify code now looks up an issuer certificate by a
5953 number of criteria: subject name, authority key id
5954 and key usage. It also verifies self signed certificates
5955 by the same criteria. The main comparison function is
5956 X509_check_issued() which performs these checks.
5958 Lot of changes were necessary in order to support this
5959 without completely rewriting the lookup code.
5961 Authority and subject key identifier are now cached.
5963 The LHASH 'certs' is X509_STORE has now been replaced
5964 by a STACK_OF(X509_OBJECT). This is mainly because an
5965 LHASH can't store or retrieve multiple objects with
5966 the same hash value.
5968 As a result various functions (which were all internal
5969 use only) have changed to handle the new X509_STORE
5970 structure. This will break anything that messed round
5971 with X509_STORE internally.
5973 The functions X509_STORE_add_cert() now checks for an
5974 exact match, rather than just subject name.
5976 The X509_STORE API doesn't directly support the retrieval
5977 of multiple certificates matching a given criteria, however
5978 this can be worked round by performing a lookup first
5979 (which will fill the cache with candidate certificates)
5980 and then examining the cache for matches. This is probably
5981 the best we can do without throwing out X509_LOOKUP
5982 entirely (maybe later...).
5984 The X509_VERIFY_CTX structure has been enhanced considerably.
5986 All certificate lookup operations now go via a get_issuer()
5987 callback. Although this currently uses an X509_STORE it
5988 can be replaced by custom lookups. This is a simple way
5989 to bypass the X509_STORE hackery necessary to make this
5990 work and makes it possible to use more efficient techniques
5991 in future. A very simple version which uses a simple
5992 STACK for its trusted certificate store is also provided
5993 using X509_STORE_CTX_trusted_stack().
5995 The verify_cb() and verify() callbacks now have equivalents
5996 in the X509_STORE_CTX structure.
5998 X509_STORE_CTX also has a 'flags' field which can be used
5999 to customise the verify behaviour.
6002 *) Add new PKCS#7 signing option PKCS7_NOSMIMECAP which
6003 excludes S/MIME capabilities.
6006 *) When a certificate request is read in keep a copy of the
6007 original encoding of the signed data and use it when outputing
6008 again. Signatures then use the original encoding rather than
6009 a decoded, encoded version which may cause problems if the
6010 request is improperly encoded.
6013 *) For consistency with other BIO_puts implementations, call
6014 buffer_write(b, ...) directly in buffer_puts instead of calling
6017 In BIO_puts, increment b->num_write as in BIO_write.
6018 [Peter.Sylvester@EdelWeb.fr]
6020 *) Fix BN_mul_word for the case where the word is 0. (We have to use
6021 BN_zero, we may not return a BIGNUM with an array consisting of
6025 *) Avoid calling abort() from within the library when problems are
6026 detected, except if preprocessor symbols have been defined
6027 (such as REF_CHECK, BN_DEBUG etc.).
6030 *) New openssl application 'rsautl'. This utility can be
6031 used for low level RSA operations. DER public key
6032 BIO/fp routines also added.
6035 *) New Configure entry and patches for compiling on QNX 4.
6036 [Andreas Schneider <andreas@ds3.etech.fh-hamburg.de>]
6038 *) A demo state-machine implementation was sponsored by
6039 Nuron (http://www.nuron.com/) and is now available in
6040 demos/state_machine.
6043 *) New options added to the 'dgst' utility for signature
6044 generation and verification.
6047 *) Unrecognized PKCS#7 content types are now handled via a
6048 catch all ASN1_TYPE structure. This allows unsupported
6049 types to be stored as a "blob" and an application can
6050 encode and decode it manually.
6053 *) Fix various signed/unsigned issues to make a_strex.c
6055 [Oscar Jacobsson <oscar.jacobsson@celocom.com>]
6057 *) ASN1 fixes. i2d_ASN1_OBJECT was not returning the correct
6058 length if passed a buffer. ASN1_INTEGER_to_BN failed
6059 if passed a NULL BN and its argument was negative.
6060 [Steve Henson, pointed out by Sven Heiberg <sven@tartu.cyber.ee>]
6062 *) Modification to PKCS#7 encoding routines to output definite
6063 length encoding. Since currently the whole structures are in
6064 memory there's not real point in using indefinite length
6065 constructed encoding. However if OpenSSL is compiled with
6066 the flag PKCS7_INDEFINITE_ENCODING the old form is used.
6069 *) Added BIO_vprintf() and BIO_vsnprintf().
6072 *) Added more prefixes to parse for in the the strings written
6073 through a logging bio, to cover all the levels that are available
6074 through syslog. The prefixes are now:
6076 PANIC, EMERG, EMR => LOG_EMERG
6077 ALERT, ALR => LOG_ALERT
6078 CRIT, CRI => LOG_CRIT
6079 ERROR, ERR => LOG_ERR
6080 WARNING, WARN, WAR => LOG_WARNING
6081 NOTICE, NOTE, NOT => LOG_NOTICE
6082 INFO, INF => LOG_INFO
6083 DEBUG, DBG => LOG_DEBUG
6085 and as before, if none of those prefixes are present at the
6086 beginning of the string, LOG_ERR is chosen.
6088 On Win32, the LOG_* levels are mapped according to this:
6090 LOG_EMERG, LOG_ALERT, LOG_CRIT, LOG_ERR => EVENTLOG_ERROR_TYPE
6091 LOG_WARNING => EVENTLOG_WARNING_TYPE
6092 LOG_NOTICE, LOG_INFO, LOG_DEBUG => EVENTLOG_INFORMATION_TYPE
6096 *) Made it possible to reconfigure with just the configuration
6097 argument "reconf" or "reconfigure". The command line arguments
6098 are stored in Makefile.ssl in the variable CONFIGURE_ARGS,
6099 and are retrieved from there when reconfiguring.
6103 [Assar Westerlund <assar@sics.se>, Richard Levitte]
6105 *) Add the arguments -CAfile and -CApath to the pkcs12 utility.
6108 *) The obj_dat.pl script was messing up the sorting of object
6109 names. The reason was that it compared the quoted version
6110 of strings as a result "OCSP" > "OCSP Signing" because
6111 " > SPACE. Changed script to store unquoted versions of
6112 names and add quotes on output. It was also omitting some
6113 names from the lookup table if they were given a default
6114 value (that is if SN is missing it is given the same
6115 value as LN and vice versa), these are now added on the
6116 grounds that if an object has a name we should be able to
6117 look it up. Finally added warning output when duplicate
6118 short or long names are found.
6121 *) Changes needed for Tandem NSK.
6122 [Scott Uroff <scott@xypro.com>]
6124 *) Fix SSL 2.0 rollback checking: Due to an off-by-one error in
6125 RSA_padding_check_SSLv23(), special padding was never detected
6126 and thus the SSL 3.0/TLS 1.0 countermeasure against protocol
6127 version rollback attacks was not effective.
6129 In s23_clnt.c, don't use special rollback-attack detection padding
6130 (RSA_SSLV23_PADDING) if SSL 2.0 is the only protocol enabled in the
6131 client; similarly, in s23_srvr.c, don't do the rollback check if
6132 SSL 2.0 is the only protocol enabled in the server.
6135 *) Make it possible to get hexdumps of unprintable data with 'openssl
6136 asn1parse'. By implication, the functions ASN1_parse_dump() and
6137 BIO_dump_indent() are added.
6140 *) New functions ASN1_STRING_print_ex() and X509_NAME_print_ex()
6141 these print out strings and name structures based on various
6142 flags including RFC2253 support and proper handling of
6143 multibyte characters. Added options to the 'x509' utility
6144 to allow the various flags to be set.
6147 *) Various fixes to use ASN1_TIME instead of ASN1_UTCTIME.
6148 Also change the functions X509_cmp_current_time() and
6149 X509_gmtime_adj() work with an ASN1_TIME structure,
6150 this will enable certificates using GeneralizedTime in validity
6151 dates to be checked.
6154 *) Make the NEG_PUBKEY_BUG code (which tolerates invalid
6155 negative public key encodings) on by default,
6156 NO_NEG_PUBKEY_BUG can be set to disable it.
6159 *) New function c2i_ASN1_OBJECT() which acts on ASN1_OBJECT
6160 content octets. An i2c_ASN1_OBJECT is unnecessary because
6161 the encoding can be trivially obtained from the structure.
6164 *) crypto/err.c locking bugfix: Use write locks (CRYPTO_w_[un]lock),
6165 not read locks (CRYPTO_r_[un]lock).
6168 *) A first attempt at creating official support for shared
6169 libraries through configuration. I've kept it so the
6170 default is static libraries only, and the OpenSSL programs
6171 are always statically linked for now, but there are
6172 preparations for dynamic linking in place.
6173 This has been tested on Linux and Tru64.
6176 *) Randomness polling function for Win9x, as described in:
6177 Peter Gutmann, Software Generation of Practically Strong
6181 *) Fix so PRNG is seeded in req if using an already existing
6185 *) New options to smime application. -inform and -outform
6186 allow alternative formats for the S/MIME message including
6187 PEM and DER. The -content option allows the content to be
6188 specified separately. This should allow things like Netscape
6189 form signing output easier to verify.
6192 *) Fix the ASN1 encoding of tags using the 'long form'.
6195 *) New ASN1 functions, i2c_* and c2i_* for INTEGER and BIT
6196 STRING types. These convert content octets to and from the
6197 underlying type. The actual tag and length octets are
6198 already assumed to have been read in and checked. These
6199 are needed because all other string types have virtually
6200 identical handling apart from the tag. By having versions
6201 of the ASN1 functions that just operate on content octets
6202 IMPLICIT tagging can be handled properly. It also allows
6203 the ASN1_ENUMERATED code to be cut down because ASN1_ENUMERATED
6204 and ASN1_INTEGER are identical apart from the tag.
6207 *) Change the handling of OID objects as follows:
6209 - New object identifiers are inserted in objects.txt, following
6210 the syntax given in objects.README.
6211 - objects.pl is used to process obj_mac.num and create a new
6213 - obj_dat.pl is used to create a new obj_dat.h, using the data in
6216 This is currently kind of a hack, and the perl code in objects.pl
6217 isn't very elegant, but it works as I intended. The simplest way
6218 to check that it worked correctly is to look in obj_dat.h and
6219 check the array nid_objs and make sure the objects haven't moved
6220 around (this is important!). Additions are OK, as well as
6221 consistent name changes.
6224 *) Add BSD-style MD5-based passwords to 'openssl passwd' (option '-1').
6227 *) Addition of the command line parameter '-rand file' to 'openssl req'.
6228 The given file adds to whatever has already been seeded into the
6229 random pool through the RANDFILE configuration file option or
6230 environment variable, or the default random state file.
6233 *) mkstack.pl now sorts each macro group into lexical order.
6234 Previously the output order depended on the order the files
6235 appeared in the directory, resulting in needless rewriting
6239 *) Patches to make OpenSSL compile under Win32 again. Mostly
6240 work arounds for the VC++ problem that it treats func() as
6241 func(void). Also stripped out the parts of mkdef.pl that
6242 added extra typesafe functions: these no longer exist.
6245 *) Reorganisation of the stack code. The macros are now all
6246 collected in safestack.h . Each macro is defined in terms of
6247 a "stack macro" of the form SKM_<name>(type, a, b). The
6248 DEBUG_SAFESTACK is now handled in terms of function casts,
6249 this has the advantage of retaining type safety without the
6250 use of additional functions. If DEBUG_SAFESTACK is not defined
6251 then the non typesafe macros are used instead. Also modified the
6252 mkstack.pl script to handle the new form. Needs testing to see
6253 if which (if any) compilers it chokes and maybe make DEBUG_SAFESTACK
6254 the default if no major problems. Similar behaviour for ASN1_SET_OF
6255 and PKCS12_STACK_OF.
6258 *) When some versions of IIS use the 'NET' form of private key the
6259 key derivation algorithm is different. Normally MD5(password) is
6260 used as a 128 bit RC4 key. In the modified case
6261 MD5(MD5(password) + "SGCKEYSALT") is used insted. Added some
6262 new functions i2d_RSA_NET(), d2i_RSA_NET() etc which are the same
6263 as the old Netscape_RSA functions except they have an additional
6264 'sgckey' parameter which uses the modified algorithm. Also added
6265 an -sgckey command line option to the rsa utility. Thanks to
6266 Adrian Peck <bertie@ncipher.com> for posting details of the modified
6267 algorithm to openssl-dev.
6270 *) The evp_local.h macros were using 'c.##kname' which resulted in
6271 invalid expansion on some systems (SCO 5.0.5 for example).
6272 Corrected to 'c.kname'.
6273 [Phillip Porch <root@theporch.com>]
6275 *) New X509_get1_email() and X509_REQ_get1_email() functions that return
6276 a STACK of email addresses from a certificate or request, these look
6277 in the subject name and the subject alternative name extensions and
6278 omit any duplicate addresses.
6281 *) Re-implement BN_mod_exp2_mont using independent (and larger) windows.
6282 This makes DSA verification about 2 % faster.
6285 *) Increase maximum window size in BN_mod_exp_... to 6 bits instead of 5
6286 (meaning that now 2^5 values will be precomputed, which is only 4 KB
6287 plus overhead for 1024 bit moduli).
6288 This makes exponentiations about 0.5 % faster for 1024 bit
6289 exponents (as measured by "openssl speed rsa2048").
6292 *) Rename memory handling macros to avoid conflicts with other
6294 Malloc => OPENSSL_malloc
6295 Malloc_locked => OPENSSL_malloc_locked
6296 Realloc => OPENSSL_realloc
6297 Free => OPENSSL_free
6300 *) New function BN_mod_exp_mont_word for small bases (roughly 15%
6301 faster than BN_mod_exp_mont, i.e. 7% for a full DH exchange).
6304 *) CygWin32 support.
6305 [John Jarvie <jjarvie@newsguy.com>]
6307 *) The type-safe stack code has been rejigged. It is now only compiled
6308 in when OpenSSL is configured with the DEBUG_SAFESTACK option and
6309 by default all type-specific stack functions are "#define"d back to
6310 standard stack functions. This results in more streamlined output
6311 but retains the type-safety checking possibilities of the original
6315 *) The STACK code has been cleaned up, and certain type declarations
6316 that didn't make a lot of sense have been brought in line. This has
6317 also involved a cleanup of sorts in safestack.h to more correctly
6318 map type-safe stack functions onto their plain stack counterparts.
6319 This work has also resulted in a variety of "const"ifications of
6320 lots of the code, especially "_cmp" operations which should normally
6321 be prototyped with "const" parameters anyway.
6324 *) When generating bytes for the first time in md_rand.c, 'stir the pool'
6325 by seeding with STATE_SIZE dummy bytes (with zero entropy count).
6326 (The PRNG state consists of two parts, the large pool 'state' and 'md',
6327 where all of 'md' is used each time the PRNG is used, but 'state'
6328 is used only indexed by a cyclic counter. As entropy may not be
6329 well distributed from the beginning, 'md' is important as a
6330 chaining variable. However, the output function chains only half
6331 of 'md', i.e. 80 bits. ssleay_rand_add, on the other hand, chains
6332 all of 'md', and seeding with STATE_SIZE dummy bytes will result
6333 in all of 'state' being rewritten, with the new values depending
6334 on virtually all of 'md'. This overcomes the 80 bit limitation.)
6337 *) In ssl/s2_clnt.c and ssl/s3_clnt.c, call ERR_clear_error() when
6338 the handshake is continued after ssl_verify_cert_chain();
6339 otherwise, if SSL_VERIFY_NONE is set, remaining error codes
6340 can lead to 'unexplainable' connection aborts later.
6341 [Bodo Moeller; problem tracked down by Lutz Jaenicke]
6343 *) Major EVP API cipher revision.
6344 Add hooks for extra EVP features. This allows various cipher
6345 parameters to be set in the EVP interface. Support added for variable
6346 key length ciphers via the EVP_CIPHER_CTX_set_key_length() function and
6347 setting of RC2 and RC5 parameters.
6349 Modify EVP_OpenInit() and EVP_SealInit() to cope with variable key length
6352 Remove lots of duplicated code from the EVP library. For example *every*
6353 cipher init() function handles the 'iv' in the same way according to the
6354 cipher mode. They also all do nothing if the 'key' parameter is NULL and
6355 for CFB and OFB modes they zero ctx->num.
6357 New functionality allows removal of S/MIME code RC2 hack.
6359 Most of the routines have the same form and so can be declared in terms
6362 By shifting this to the top level EVP_CipherInit() it can be removed from
6363 all individual ciphers. If the cipher wants to handle IVs or keys
6364 differently it can set the EVP_CIPH_CUSTOM_IV or EVP_CIPH_ALWAYS_CALL_INIT
6367 Change lots of functions like EVP_EncryptUpdate() to now return a
6368 value: although software versions of the algorithms cannot fail
6369 any installed hardware versions can.
6372 *) Implement SSL_OP_TLS_ROLLBACK_BUG: In ssl3_get_client_key_exchange, if
6373 this option is set, tolerate broken clients that send the negotiated
6374 protocol version number instead of the requested protocol version
6378 *) Call dh_tmp_cb (set by ..._TMP_DH_CB) with correct 'is_export' flag;
6379 i.e. non-zero for export ciphersuites, zero otherwise.
6380 Previous versions had this flag inverted, inconsistent with
6381 rsa_tmp_cb (..._TMP_RSA_CB).
6382 [Bodo Moeller; problem reported by Amit Chopra]
6384 *) Add missing DSA library text string. Work around for some IIS
6385 key files with invalid SEQUENCE encoding.
6388 *) Add a document (doc/standards.txt) that list all kinds of standards
6389 and so on that are implemented in OpenSSL.
6392 *) Enhance c_rehash script. Old version would mishandle certificates
6393 with the same subject name hash and wouldn't handle CRLs at all.
6394 Added -fingerprint option to crl utility, to support new c_rehash
6398 *) Eliminate non-ANSI declarations in crypto.h and stack.h.
6401 *) Fix for SSL server purpose checking. Server checking was
6402 rejecting certificates which had extended key usage present
6403 but no ssl client purpose.
6404 [Steve Henson, reported by Rene Grosser <grosser@hisolutions.com>]
6406 *) Make PKCS#12 code work with no password. The PKCS#12 spec
6407 is a little unclear about how a blank password is handled.
6408 Since the password in encoded as a BMPString with terminating
6409 double NULL a zero length password would end up as just the
6410 double NULL. However no password at all is different and is
6411 handled differently in the PKCS#12 key generation code. NS
6412 treats a blank password as zero length. MSIE treats it as no
6413 password on export: but it will try both on import. We now do
6414 the same: PKCS12_parse() tries zero length and no password if
6415 the password is set to "" or NULL (NULL is now a valid password:
6416 it wasn't before) as does the pkcs12 application.
6419 *) Bugfixes in apps/x509.c: Avoid a memory leak; and don't use
6420 perror when PEM_read_bio_X509_REQ fails, the error message must
6421 be obtained from the error queue.
6424 *) Avoid 'thread_hash' memory leak in crypto/err/err.c by freeing
6425 it in ERR_remove_state if appropriate, and change ERR_get_state
6426 accordingly to avoid race conditions (this is necessary because
6427 thread_hash is no longer constant once set).
6430 *) Bugfix for linux-elf makefile.one.
6433 *) RSA_get_default_method() will now cause a default
6434 RSA_METHOD to be chosen if one doesn't exist already.
6435 Previously this was only set during a call to RSA_new()
6436 or RSA_new_method(NULL) meaning it was possible for
6437 RSA_get_default_method() to return NULL.
6440 *) Added native name translation to the existing DSO code
6441 that will convert (if the flag to do so is set) filenames
6442 that are sufficiently small and have no path information
6443 into a canonical native form. Eg. "blah" converted to
6444 "libblah.so" or "blah.dll" etc.
6447 *) New function ERR_error_string_n(e, buf, len) which is like
6448 ERR_error_string(e, buf), but writes at most 'len' bytes
6449 including the 0 terminator. For ERR_error_string_n, 'buf'
6451 [Damien Miller <djm@mindrot.org>, Bodo Moeller]
6453 *) CONF library reworked to become more general. A new CONF
6454 configuration file reader "class" is implemented as well as a
6455 new functions (NCONF_*, for "New CONF") to handle it. The now
6456 old CONF_* functions are still there, but are reimplemented to
6457 work in terms of the new functions. Also, a set of functions
6458 to handle the internal storage of the configuration data is
6459 provided to make it easier to write new configuration file
6460 reader "classes" (I can definitely see something reading a
6461 configuration file in XML format, for example), called _CONF_*,
6462 or "the configuration storage API"...
6464 The new configuration file reading functions are:
6466 NCONF_new, NCONF_free, NCONF_load, NCONF_load_fp, NCONF_load_bio,
6467 NCONF_get_section, NCONF_get_string, NCONF_get_numbre
6469 NCONF_default, NCONF_WIN32
6471 NCONF_dump_fp, NCONF_dump_bio
6473 NCONF_default and NCONF_WIN32 are method (or "class") choosers,
6474 NCONF_new creates a new CONF object. This works in the same way
6475 as other interfaces in OpenSSL, like the BIO interface.
6476 NCONF_dump_* dump the internal storage of the configuration file,
6477 which is useful for debugging. All other functions take the same
6478 arguments as the old CONF_* functions wth the exception of the
6479 first that must be a `CONF *' instead of a `LHASH *'.
6481 To make it easer to use the new classes with the old CONF_* functions,
6482 the function CONF_set_default_method is provided.
6485 *) Add '-tls1' option to 'openssl ciphers', which was already
6486 mentioned in the documentation but had not been implemented.
6487 (This option is not yet really useful because even the additional
6488 experimental TLS 1.0 ciphers are currently treated as SSL 3.0 ciphers.)
6491 *) Initial DSO code added into libcrypto for letting OpenSSL (and
6492 OpenSSL-based applications) load shared libraries and bind to
6493 them in a portable way.
6494 [Geoff Thorpe, with contributions from Richard Levitte]
6496 Changes between 0.9.5 and 0.9.5a [1 Apr 2000]
6498 *) Make sure _lrotl and _lrotr are only used with MSVC.
6500 *) Use lock CRYPTO_LOCK_RAND correctly in ssleay_rand_status
6501 (the default implementation of RAND_status).
6503 *) Rename openssl x509 option '-crlext', which was added in 0.9.5,
6504 to '-clrext' (= clear extensions), as intended and documented.
6505 [Bodo Moeller; inconsistency pointed out by Michael Attili
6508 *) Fix for HMAC. It wasn't zeroing the rest of the block if the key length
6509 was larger than the MD block size.
6510 [Steve Henson, pointed out by Yost William <YostW@tce.com>]
6512 *) Modernise PKCS12_parse() so it uses STACK_OF(X509) for its ca argument
6513 fix a leak when the ca argument was passed as NULL. Stop X509_PUBKEY_set()
6514 using the passed key: if the passed key was a private key the result
6515 of X509_print(), for example, would be to print out all the private key
6519 *) des_quad_cksum() byte order bug fix.
6520 [Ulf Möller, using the problem description in krb4-0.9.7, where
6521 the solution is attributed to Derrick J Brashear <shadow@DEMENTIA.ORG>]
6523 *) Fix so V_ASN1_APP_CHOOSE works again: however its use is strongly
6525 [Steve Henson, pointed out by Brian Korver <briank@cs.stanford.edu>]
6527 *) For easily testing in shell scripts whether some command
6528 'openssl XXX' exists, the new pseudo-command 'openssl no-XXX'
6529 returns with exit code 0 iff no command of the given name is available.
6530 'no-XXX' is printed in this case, 'XXX' otherwise. In both cases,
6531 the output goes to stdout and nothing is printed to stderr.
6532 Additional arguments are always ignored.
6534 Since for each cipher there is a command of the same name,
6535 the 'no-cipher' compilation switches can be tested this way.
6537 ('openssl no-XXX' is not able to detect pseudo-commands such
6538 as 'quit', 'list-XXX-commands', or 'no-XXX' itself.)
6541 *) Update test suite so that 'make test' succeeds in 'no-rsa' configuration.
6544 *) For SSL_[CTX_]set_tmp_dh, don't create a DH key if SSL_OP_SINGLE_DH_USE
6545 is set; it will be thrown away anyway because each handshake creates
6547 ssl_cert_dup, which is used by SSL_new, now copies DH keys in addition
6548 to parameters -- in previous versions (since OpenSSL 0.9.3) the
6549 'default key' from SSL_CTX_set_tmp_dh would always be lost, meanining
6550 you effectivly got SSL_OP_SINGLE_DH_USE when using this macro.
6553 *) New s_client option -ign_eof: EOF at stdin is ignored, and
6554 'Q' and 'R' lose their special meanings (quit/renegotiate).
6555 This is part of what -quiet does; unlike -quiet, -ign_eof
6556 does not suppress any output.
6559 *) Add compatibility options to the purpose and trust code. The
6560 purpose X509_PURPOSE_ANY is "any purpose" which automatically
6561 accepts a certificate or CA, this was the previous behaviour,
6562 with all the associated security issues.
6564 X509_TRUST_COMPAT is the old trust behaviour: only and
6565 automatically trust self signed roots in certificate store. A
6566 new trust setting X509_TRUST_DEFAULT is used to specify that
6567 a purpose has no associated trust setting and it should instead
6568 use the value in the default purpose.
6571 *) Fix the PKCS#8 DSA private key code so it decodes keys again
6572 and fix a memory leak.
6575 *) In util/mkerr.pl (which implements 'make errors'), preserve
6576 reason strings from the previous version of the .c file, as
6577 the default to have only downcase letters (and digits) in
6578 automatically generated reasons codes is not always appropriate.
6581 *) In ERR_load_ERR_strings(), build an ERR_LIB_SYS error reason table
6582 using strerror. Previously, ERR_reason_error_string() returned
6583 library names as reason strings for SYSerr; but SYSerr is a special
6584 case where small numbers are errno values, not library numbers.
6587 *) Add '-dsaparam' option to 'openssl dhparam' application. This
6588 converts DSA parameters into DH parameters. (When creating parameters,
6589 DSA_generate_parameters is used.)
6592 *) Include 'length' (recommended exponent length) in C code generated
6593 by 'openssl dhparam -C'.
6596 *) The second argument to set_label in perlasm was already being used
6597 so couldn't be used as a "file scope" flag. Moved to third argument
6601 *) In PEM_ASN1_write_bio and some other functions, use RAND_pseudo_bytes
6602 instead of RAND_bytes for encryption IVs and salts.
6605 *) Include RAND_status() into RAND_METHOD instead of implementing
6606 it only for md_rand.c Otherwise replacing the PRNG by calling
6607 RAND_set_rand_method would be impossible.
6610 *) Don't let DSA_generate_key() enter an infinite loop if the random
6611 number generation fails.
6614 *) New 'rand' application for creating pseudo-random output.
6617 *) Added configuration support for Linux/IA64
6618 [Rolf Haberrecker <rolf@suse.de>]
6620 *) Assembler module support for Mingw32.
6623 *) Shared library support for HPUX (in shlib/).
6624 [Lutz Jaenicke <Lutz.Jaenicke@aet.TU-Cottbus.DE> and Anonymous]
6626 *) Shared library support for Solaris gcc.
6627 [Lutz Behnke <behnke@trustcenter.de>]
6629 Changes between 0.9.4 and 0.9.5 [28 Feb 2000]
6631 *) PKCS7_encrypt() was adding text MIME headers twice because they
6632 were added manually and by SMIME_crlf_copy().
6635 *) In bntest.c don't call BN_rand with zero bits argument.
6636 [Steve Henson, pointed out by Andrew W. Gray <agray@iconsinc.com>]
6638 *) BN_mul bugfix: In bn_mul_part_recursion() only the a>a[n] && b>b[n]
6639 case was implemented. This caused BN_div_recp() to fail occasionally.
6642 *) Add an optional second argument to the set_label() in the perl
6643 assembly language builder. If this argument exists and is set
6644 to 1 it signals that the assembler should use a symbol whose
6645 scope is the entire file, not just the current function. This
6646 is needed with MASM which uses the format label:: for this scope.
6647 [Steve Henson, pointed out by Peter Runestig <peter@runestig.com>]
6649 *) Change the ASN1 types so they are typedefs by default. Before
6650 almost all types were #define'd to ASN1_STRING which was causing
6651 STACK_OF() problems: you couldn't declare STACK_OF(ASN1_UTF8STRING)
6655 *) Change names of new functions to the new get1/get0 naming
6656 convention: After 'get1', the caller owns a reference count
6657 and has to call ..._free; 'get0' returns a pointer to some
6658 data structure without incrementing reference counters.
6659 (Some of the existing 'get' functions increment a reference
6660 counter, some don't.)
6661 Similarly, 'set1' and 'add1' functions increase reference
6662 counters or duplicate objects.
6665 *) Allow for the possibility of temp RSA key generation failure:
6666 the code used to assume it always worked and crashed on failure.
6669 *) Fix potential buffer overrun problem in BIO_printf().
6670 [Ulf Möller, using public domain code by Patrick Powell; problem
6671 pointed out by David Sacerdote <das33@cornell.edu>]
6673 *) Support EGD <http://www.lothar.com/tech/crypto/>. New functions
6674 RAND_egd() and RAND_status(). In the command line application,
6675 the EGD socket can be specified like a seed file using RANDFILE
6679 *) Allow the string CERTIFICATE to be tolerated in PKCS#7 structures.
6680 Some CAs (e.g. Verisign) distribute certificates in this form.
6683 *) Remove the SSL_ALLOW_ADH compile option and set the default cipher
6684 list to exclude them. This means that no special compilation option
6685 is needed to use anonymous DH: it just needs to be included in the
6689 *) Change the EVP_MD_CTX_type macro so its meaning consistent with
6690 EVP_MD_type. The old functionality is available in a new macro called
6691 EVP_MD_md(). Change code that uses it and update docs.
6694 *) ..._ctrl functions now have corresponding ..._callback_ctrl functions
6695 where the 'void *' argument is replaced by a function pointer argument.
6696 Previously 'void *' was abused to point to functions, which works on
6697 many platforms, but is not correct. As these functions are usually
6698 called by macros defined in OpenSSL header files, most source code
6699 should work without changes.
6702 *) <openssl/opensslconf.h> (which is created by Configure) now contains
6703 sections with information on -D... compiler switches used for
6704 compiling the library so that applications can see them. To enable
6705 one of these sections, a pre-processor symbol OPENSSL_..._DEFINES
6706 must be defined. E.g.,
6707 #define OPENSSL_ALGORITHM_DEFINES
6708 #include <openssl/opensslconf.h>
6709 defines all pertinent NO_<algo> symbols, such as NO_IDEA, NO_RSA, etc.
6710 [Richard Levitte, Ulf and Bodo Möller]
6712 *) Bugfix: Tolerate fragmentation and interleaving in the SSL 3/TLS
6716 *) Change the 'other' type in certificate aux info to a STACK_OF
6717 X509_ALGOR. Although not an AlgorithmIdentifier as such it has
6718 the required ASN1 format: arbitrary types determined by an OID.
6721 *) Add some PEM_write_X509_REQ_NEW() functions and a command line
6722 argument to 'req'. This is not because the function is newer or
6723 better than others it just uses the work 'NEW' in the certificate
6724 request header lines. Some software needs this.
6727 *) Reorganise password command line arguments: now passwords can be
6728 obtained from various sources. Delete the PEM_cb function and make
6729 it the default behaviour: i.e. if the callback is NULL and the
6730 usrdata argument is not NULL interpret it as a null terminated pass
6731 phrase. If usrdata and the callback are NULL then the pass phrase
6732 is prompted for as usual.
6735 *) Add support for the Compaq Atalla crypto accelerator. If it is installed,
6736 the support is automatically enabled. The resulting binaries will
6737 autodetect the card and use it if present.
6738 [Ben Laurie and Compaq Inc.]
6740 *) Work around for Netscape hang bug. This sends certificate request
6741 and server done in one record. Since this is perfectly legal in the
6742 SSL/TLS protocol it isn't a "bug" option and is on by default. See
6743 the bugs/SSLv3 entry for more info.
6746 *) HP-UX tune-up: new unified configs, HP C compiler bug workaround.
6749 *) Add -rand argument to smime and pkcs12 applications and read/write
6753 *) New 'passwd' tool for crypt(3) and apr1 password hashes.
6756 *) Add command line password options to the remaining applications.
6759 *) Bug fix for BN_div_recp() for numerators with an even number of
6763 *) More tests in bntest.c, and changed test_bn output.
6766 *) ./config recognizes MacOS X now.
6769 *) Bug fix for BN_div() when the first words of num and divsor are
6770 equal (it gave wrong results if (rem=(n1-q*d0)&BN_MASK2) < d0).
6773 *) Add support for various broken PKCS#8 formats, and command line
6774 options to produce them.
6777 *) New functions BN_CTX_start(), BN_CTX_get() and BT_CTX_end() to
6778 get temporary BIGNUMs from a BN_CTX.
6781 *) Correct return values in BN_mod_exp_mont() and BN_mod_exp2_mont()
6785 *) Change the SSLeay_add_all_*() functions to OpenSSL_add_all_*() and
6786 include a #define from the old name to the new. The original intent
6787 was that statically linked binaries could for example just call
6788 SSLeay_add_all_ciphers() to just add ciphers to the table and not
6789 link with digests. This never worked becayse SSLeay_add_all_digests()
6790 and SSLeay_add_all_ciphers() were in the same source file so calling
6791 one would link with the other. They are now in separate source files.
6794 *) Add a new -notext option to 'ca' and a -pubkey option to 'spkac'.
6797 *) Use a less unusual form of the Miller-Rabin primality test (it used
6798 a binary algorithm for exponentiation integrated into the Miller-Rabin
6799 loop, our standard modexp algorithms are faster).
6802 *) Support for the EBCDIC character set completed.
6803 [Martin Kraemer <Martin.Kraemer@Mch.SNI.De>]
6805 *) Source code cleanups: use const where appropriate, eliminate casts,
6806 use void * instead of char * in lhash.
6809 *) Bugfix: ssl3_send_server_key_exchange was not restartable
6810 (the state was not changed to SSL3_ST_SW_KEY_EXCH_B, and because of
6811 this the server could overwrite ephemeral keys that the client
6815 *) Turn DSA_is_prime into a macro that calls BN_is_prime,
6816 using 50 iterations of the Rabin-Miller test.
6818 DSA_generate_parameters now uses BN_is_prime_fasttest (with 50
6819 iterations of the Rabin-Miller test as required by the appendix
6820 to FIPS PUB 186[-1]) instead of DSA_is_prime.
6821 As BN_is_prime_fasttest includes trial division, DSA parameter
6822 generation becomes much faster.
6824 This implies a change for the callback functions in DSA_is_prime
6825 and DSA_generate_parameters: The callback function is called once
6826 for each positive witness in the Rabin-Miller test, not just
6827 occasionally in the inner loop; and the parameters to the
6828 callback function now provide an iteration count for the outer
6829 loop rather than for the current invocation of the inner loop.
6830 DSA_generate_parameters additionally can call the callback
6831 function with an 'iteration count' of -1, meaning that a
6832 candidate has passed the trial division test (when q is generated
6833 from an application-provided seed, trial division is skipped).
6836 *) New function BN_is_prime_fasttest that optionally does trial
6837 division before starting the Rabin-Miller test and has
6838 an additional BN_CTX * argument (whereas BN_is_prime always
6839 has to allocate at least one BN_CTX).
6840 'callback(1, -1, cb_arg)' is called when a number has passed the
6841 trial division stage.
6844 *) Fix for bug in CRL encoding. The validity dates weren't being handled
6848 *) New -pkcs12 option to CA.pl script to write out a PKCS#12 file.
6851 *) New function BN_pseudo_rand().
6854 *) Clean up BN_mod_mul_montgomery(): replace the broken (and unreadable)
6855 bignum version of BN_from_montgomery() with the working code from
6856 SSLeay 0.9.0 (the word based version is faster anyway), and clean up
6860 *) Avoid a race condition in s2_clnt.c (function get_server_hello) that
6861 made it impossible to use the same SSL_SESSION data structure in
6862 SSL2 clients in multiple threads.
6865 *) The return value of RAND_load_file() no longer counts bytes obtained
6866 by stat(). RAND_load_file(..., -1) is new and uses the complete file
6867 to seed the PRNG (previously an explicit byte count was required).
6868 [Ulf Möller, Bodo Möller]
6870 *) Clean up CRYPTO_EX_DATA functions, some of these didn't have prototypes
6871 used (char *) instead of (void *) and had casts all over the place.
6874 *) Make BN_generate_prime() return NULL on error if ret!=NULL.
6877 *) Retain source code compatibility for BN_prime_checks macro:
6878 BN_is_prime(..., BN_prime_checks, ...) now uses
6879 BN_prime_checks_for_size to determine the appropriate number of
6880 Rabin-Miller iterations.
6883 *) Diffie-Hellman uses "safe" primes: DH_check() return code renamed to
6884 DH_CHECK_P_NOT_SAFE_PRIME.
6885 (Check if this is true? OpenPGP calls them "strong".)
6888 *) Merge the functionality of "dh" and "gendh" programs into a new program
6889 "dhparam". The old programs are retained for now but will handle DH keys
6890 (instead of parameters) in future.
6893 *) Make the ciphers, s_server and s_client programs check the return values
6894 when a new cipher list is set.
6897 *) Enhance the SSL/TLS cipher mechanism to correctly handle the TLS 56bit
6898 ciphers. Before when the 56bit ciphers were enabled the sorting was
6901 The syntax for the cipher sorting has been extended to support sorting by
6902 cipher-strength (using the strength_bits hard coded in the tables).
6903 The new command is "@STRENGTH" (see also doc/apps/ciphers.pod).
6905 Fix a bug in the cipher-command parser: when supplying a cipher command
6906 string with an "undefined" symbol (neither command nor alphanumeric
6907 [A-Za-z0-9], ssl_set_cipher_list used to hang in an endless loop. Now
6908 an error is flagged.
6910 Due to the strength-sorting extension, the code of the
6911 ssl_create_cipher_list() function was completely rearranged. I hope that
6912 the readability was also increased :-)
6913 [Lutz Jaenicke <Lutz.Jaenicke@aet.TU-Cottbus.DE>]
6915 *) Minor change to 'x509' utility. The -CAcreateserial option now uses 1
6916 for the first serial number and places 2 in the serial number file. This
6917 avoids problems when the root CA is created with serial number zero and
6918 the first user certificate has the same issuer name and serial number
6922 *) Fixes to X509_ATTRIBUTE utilities, change the 'req' program so it uses
6923 the new code. Add documentation for this stuff.
6926 *) Changes to X509_ATTRIBUTE utilities. These have been renamed from
6927 X509_*() to X509at_*() on the grounds that they don't handle X509
6928 structures and behave in an analagous way to the X509v3 functions:
6929 they shouldn't be called directly but wrapper functions should be used
6932 So we also now have some wrapper functions that call the X509at functions
6933 when passed certificate requests. (TO DO: similar things can be done with
6934 PKCS#7 signed and unsigned attributes, PKCS#12 attributes and a few other
6935 things. Some of these need some d2i or i2d and print functionality
6936 because they handle more complex structures.)
6939 *) Add missing #ifndefs that caused missing symbols when building libssl
6940 as a shared library without RSA. Use #ifndef NO_SSL2 instead of
6941 NO_RSA in ssl/s2*.c.
6942 [Kris Kennaway <kris@hub.freebsd.org>, modified by Ulf Möller]
6944 *) Precautions against using the PRNG uninitialized: RAND_bytes() now
6945 has a return value which indicates the quality of the random data
6946 (1 = ok, 0 = not seeded). Also an error is recorded on the thread's
6947 error queue. New function RAND_pseudo_bytes() generates output that is
6948 guaranteed to be unique but not unpredictable. RAND_add is like
6949 RAND_seed, but takes an extra argument for an entropy estimate
6950 (RAND_seed always assumes full entropy).
6953 *) Do more iterations of Rabin-Miller probable prime test (specifically,
6954 3 for 1024-bit primes, 6 for 512-bit primes, 12 for 256-bit primes
6955 instead of only 2 for all lengths; see BN_prime_checks_for_size definition
6956 in crypto/bn/bn_prime.c for the complete table). This guarantees a
6957 false-positive rate of at most 2^-80 for random input.
6960 *) Rewrite ssl3_read_n (ssl/s3_pkt.c) avoiding a couple of bugs.
6963 *) New function X509_CTX_rget_chain() (renamed to X509_CTX_get1_chain
6964 in the 0.9.5 release), this returns the chain
6965 from an X509_CTX structure with a dup of the stack and all
6966 the X509 reference counts upped: so the stack will exist
6967 after X509_CTX_cleanup() has been called. Modify pkcs12.c
6970 Also make SSL_SESSION_print() print out the verify return
6974 *) Add manpage for the pkcs12 command. Also change the default
6975 behaviour so MAC iteration counts are used unless the new
6976 -nomaciter option is used. This improves file security and
6977 only older versions of MSIE (4.0 for example) need it.
6980 *) Honor the no-xxx Configure options when creating .DEF files.
6983 *) Add PKCS#10 attributes to field table: challengePassword,
6984 unstructuredName and unstructuredAddress. These are taken from
6985 draft PKCS#9 v2.0 but are compatible with v1.2 provided no
6986 international characters are used.
6988 More changes to X509_ATTRIBUTE code: allow the setting of types
6989 based on strings. Remove the 'loc' parameter when adding
6990 attributes because these will be a SET OF encoding which is sorted
6994 *) Initial changes to the 'req' utility to allow request generation
6995 automation. This will allow an application to just generate a template
6996 file containing all the field values and have req construct the
6999 Initial support for X509_ATTRIBUTE handling. Stacks of these are
7000 used all over the place including certificate requests and PKCS#7
7001 structures. They are currently handled manually where necessary with
7002 some primitive wrappers for PKCS#7. The new functions behave in a
7003 manner analogous to the X509 extension functions: they allow
7004 attributes to be looked up by NID and added.
7006 Later something similar to the X509V3 code would be desirable to
7007 automatically handle the encoding, decoding and printing of the
7008 more complex types. The string types like challengePassword can
7009 be handled by the string table functions.
7011 Also modified the multi byte string table handling. Now there is
7012 a 'global mask' which masks out certain types. The table itself
7013 can use the flag STABLE_NO_MASK to ignore the mask setting: this
7014 is useful when for example there is only one permissible type
7015 (as in countryName) and using the mask might result in no valid
7019 *) Clean up 'Finished' handling, and add functions SSL_get_finished and
7020 SSL_get_peer_finished to allow applications to obtain the latest
7021 Finished messages sent to the peer or expected from the peer,
7022 respectively. (SSL_get_peer_finished is usually the Finished message
7023 actually received from the peer, otherwise the protocol will be aborted.)
7025 As the Finished message are message digests of the complete handshake
7026 (with a total of 192 bits for TLS 1.0 and more for SSL 3.0), they can
7027 be used for external authentication procedures when the authentication
7028 provided by SSL/TLS is not desired or is not enough.
7031 *) Enhanced support for Alpha Linux is added. Now ./config checks if
7032 the host supports BWX extension and if Compaq C is present on the
7033 $PATH. Just exploiting of the BWX extension results in 20-30%
7034 performance kick for some algorithms, e.g. DES and RC4 to mention
7035 a couple. Compaq C in turn generates ~20% faster code for MD5 and
7039 *) Add support for MS "fast SGC". This is arguably a violation of the
7040 SSL3/TLS protocol. Netscape SGC does two handshakes: the first with
7041 weak crypto and after checking the certificate is SGC a second one
7042 with strong crypto. MS SGC stops the first handshake after receiving
7043 the server certificate message and sends a second client hello. Since
7044 a server will typically do all the time consuming operations before
7045 expecting any further messages from the client (server key exchange
7046 is the most expensive) there is little difference between the two.
7048 To get OpenSSL to support MS SGC we have to permit a second client
7049 hello message after we have sent server done. In addition we have to
7050 reset the MAC if we do get this second client hello.
7053 *) Add a function 'd2i_AutoPrivateKey()' this will automatically decide
7054 if a DER encoded private key is RSA or DSA traditional format. Changed
7055 d2i_PrivateKey_bio() to use it. This is only needed for the "traditional"
7056 format DER encoded private key. Newer code should use PKCS#8 format which
7057 has the key type encoded in the ASN1 structure. Added DER private key
7058 support to pkcs8 application.
7061 *) SSL 3/TLS 1 servers now don't request certificates when an anonymous
7062 ciphersuites has been selected (as required by the SSL 3/TLS 1
7063 specifications). Exception: When SSL_VERIFY_FAIL_IF_NO_PEER_CERT
7064 is set, we interpret this as a request to violate the specification
7065 (the worst that can happen is a handshake failure, and 'correct'
7066 behaviour would result in a handshake failure anyway).
7069 *) In SSL_CTX_add_session, take into account that there might be multiple
7070 SSL_SESSION structures with the same session ID (e.g. when two threads
7071 concurrently obtain them from an external cache).
7072 The internal cache can handle only one SSL_SESSION with a given ID,
7073 so if there's a conflict, we now throw out the old one to achieve
7077 *) Add OIDs for idea and blowfish in CBC mode. This will allow both
7078 to be used in PKCS#5 v2.0 and S/MIME. Also add checking to
7079 some routines that use cipher OIDs: some ciphers do not have OIDs
7080 defined and so they cannot be used for S/MIME and PKCS#5 v2.0 for
7084 *) Simplify the trust setting structure and code. Now we just have
7085 two sequences of OIDs for trusted and rejected settings. These will
7086 typically have values the same as the extended key usage extension
7087 and any application specific purposes.
7089 The trust checking code now has a default behaviour: it will just
7090 check for an object with the same NID as the passed id. Functions can
7091 be provided to override either the default behaviour or the behaviour
7092 for a given id. SSL client, server and email already have functions
7093 in place for compatibility: they check the NID and also return "trusted"
7094 if the certificate is self signed.
7097 *) Add d2i,i2d bio/fp functions for PrivateKey: these convert the
7098 traditional format into an EVP_PKEY structure.
7101 *) Add a password callback function PEM_cb() which either prompts for
7102 a password if usr_data is NULL or otherwise assumes it is a null
7103 terminated password. Allow passwords to be passed on command line
7104 environment or config files in a few more utilities.
7107 *) Add a bunch of DER and PEM functions to handle PKCS#8 format private
7108 keys. Add some short names for PKCS#8 PBE algorithms and allow them
7109 to be specified on the command line for the pkcs8 and pkcs12 utilities.
7110 Update documentation.
7113 *) Support for ASN1 "NULL" type. This could be handled before by using
7114 ASN1_TYPE but there wasn't any function that would try to read a NULL
7115 and produce an error if it couldn't. For compatibility we also have
7116 ASN1_NULL_new() and ASN1_NULL_free() functions but these are faked and
7117 don't allocate anything because they don't need to.
7120 *) Initial support for MacOS is now provided. Examine INSTALL.MacOS
7122 [Andy Polyakov, Roy Woods <roy@centicsystems.ca>]
7124 *) Rebuild of the memory allocation routines used by OpenSSL code and
7125 possibly others as well. The purpose is to make an interface that
7126 provide hooks so anyone can build a separate set of allocation and
7127 deallocation routines to be used by OpenSSL, for example memory
7128 pool implementations, or something else, which was previously hard
7129 since Malloc(), Realloc() and Free() were defined as macros having
7130 the values malloc, realloc and free, respectively (except for Win32
7131 compilations). The same is provided for memory debugging code.
7132 OpenSSL already comes with functionality to find memory leaks, but
7133 this gives people a chance to debug other memory problems.
7135 With these changes, a new set of functions and macros have appeared:
7137 CRYPTO_set_mem_debug_functions() [F]
7138 CRYPTO_get_mem_debug_functions() [F]
7139 CRYPTO_dbg_set_options() [F]
7140 CRYPTO_dbg_get_options() [F]
7141 CRYPTO_malloc_debug_init() [M]
7143 The memory debug functions are NULL by default, unless the library
7144 is compiled with CRYPTO_MDEBUG or friends is defined. If someone
7145 wants to debug memory anyway, CRYPTO_malloc_debug_init() (which
7146 gives the standard debugging functions that come with OpenSSL) or
7147 CRYPTO_set_mem_debug_functions() (tells OpenSSL to use functions
7148 provided by the library user) must be used. When the standard
7149 debugging functions are used, CRYPTO_dbg_set_options can be used to
7150 request additional information:
7151 CRYPTO_dbg_set_options(V_CYRPTO_MDEBUG_xxx) corresponds to setting
7152 the CRYPTO_MDEBUG_xxx macro when compiling the library.
7154 Also, things like CRYPTO_set_mem_functions will always give the
7155 expected result (the new set of functions is used for allocation
7156 and deallocation) at all times, regardless of platform and compiler
7159 To finish it up, some functions that were never use in any other
7160 way than through macros have a new API and new semantic:
7163 CRYPTO_dbg_realloc()
7166 All macros of value have retained their old syntax.
7167 [Richard Levitte and Bodo Moeller]
7169 *) Some S/MIME fixes. The OID for SMIMECapabilities was wrong, the
7170 ordering of SMIMECapabilities wasn't in "strength order" and there
7171 was a missing NULL in the AlgorithmIdentifier for the SHA1 signature
7175 *) Some ASN1 types with illegal zero length encoding (INTEGER,
7176 ENUMERATED and OBJECT IDENTIFIER) choked the ASN1 routines.
7177 [Frans Heymans <fheymans@isaserver.be>, modified by Steve Henson]
7179 *) Merge in my S/MIME library for OpenSSL. This provides a simple
7180 S/MIME API on top of the PKCS#7 code, a MIME parser (with enough
7181 functionality to handle multipart/signed properly) and a utility
7182 called 'smime' to call all this stuff. This is based on code I
7183 originally wrote for Celo who have kindly allowed it to be
7184 included in OpenSSL.
7187 *) Add variants des_set_key_checked and des_set_key_unchecked of
7188 des_set_key (aka des_key_sched). Global variable des_check_key
7189 decides which of these is called by des_set_key; this way
7190 des_check_key behaves as it always did, but applications and
7191 the library itself, which was buggy for des_check_key == 1,
7192 have a cleaner way to pick the version they need.
7195 *) New function PKCS12_newpass() which changes the password of a
7199 *) Modify X509_TRUST and X509_PURPOSE so it also uses a static and
7200 dynamic mix. In both cases the ids can be used as an index into the
7201 table. Also modified the X509_TRUST_add() and X509_PURPOSE_add()
7202 functions so they accept a list of the field values and the
7203 application doesn't need to directly manipulate the X509_TRUST
7207 *) Modify the ASN1_STRING_TABLE stuff so it also uses bsearch and doesn't
7211 *) Modify the way the V3 extension code looks up extensions. This now
7212 works in a similar way to the object code: we have some "standard"
7213 extensions in a static table which is searched with OBJ_bsearch()
7214 and the application can add dynamic ones if needed. The file
7215 crypto/x509v3/ext_dat.h now has the info: this file needs to be
7216 updated whenever a new extension is added to the core code and kept
7217 in ext_nid order. There is a simple program 'tabtest.c' which checks
7218 this. New extensions are not added too often so this file can readily
7219 be maintained manually.
7221 There are two big advantages in doing things this way. The extensions
7222 can be looked up immediately and no longer need to be "added" using
7223 X509V3_add_standard_extensions(): this function now does nothing.
7224 [Side note: I get *lots* of email saying the extension code doesn't
7225 work because people forget to call this function]
7226 Also no dynamic allocation is done unless new extensions are added:
7227 so if we don't add custom extensions there is no need to call
7228 X509V3_EXT_cleanup().
7231 *) Modify enc utility's salting as follows: make salting the default. Add a
7232 magic header, so unsalted files fail gracefully instead of just decrypting
7233 to garbage. This is because not salting is a big security hole, so people
7234 should be discouraged from doing it.
7237 *) Fixes and enhancements to the 'x509' utility. It allowed a message
7238 digest to be passed on the command line but it only used this
7239 parameter when signing a certificate. Modified so all relevant
7240 operations are affected by the digest parameter including the
7241 -fingerprint and -x509toreq options. Also -x509toreq choked if a
7242 DSA key was used because it didn't fix the digest.
7245 *) Initial certificate chain verify code. Currently tests the untrusted
7246 certificates for consistency with the verify purpose (which is set
7247 when the X509_STORE_CTX structure is set up) and checks the pathlength.
7249 There is a NO_CHAIN_VERIFY compilation option to keep the old behaviour:
7250 this is because it will reject chains with invalid extensions whereas
7251 every previous version of OpenSSL and SSLeay made no checks at all.
7253 Trust code: checks the root CA for the relevant trust settings. Trust
7254 settings have an initial value consistent with the verify purpose: e.g.
7255 if the verify purpose is for SSL client use it expects the CA to be
7256 trusted for SSL client use. However the default value can be changed to
7257 permit custom trust settings: one example of this would be to only trust
7258 certificates from a specific "secure" set of CAs.
7260 Also added X509_STORE_CTX_new() and X509_STORE_CTX_free() functions
7261 which should be used for version portability: especially since the
7262 verify structure is likely to change more often now.
7264 SSL integration. Add purpose and trust to SSL_CTX and SSL and functions
7265 to set them. If not set then assume SSL clients will verify SSL servers
7268 Two new options to the verify program: -untrusted allows a set of
7269 untrusted certificates to be passed in and -purpose which sets the
7270 intended purpose of the certificate. If a purpose is set then the
7271 new chain verify code is used to check extension consistency.
7274 *) Support for the authority information access extension.
7277 *) Modify RSA and DSA PEM read routines to transparently handle
7278 PKCS#8 format private keys. New *_PUBKEY_* functions that handle
7279 public keys in a format compatible with certificate
7280 SubjectPublicKeyInfo structures. Unfortunately there were already
7281 functions called *_PublicKey_* which used various odd formats so
7282 these are retained for compatibility: however the DSA variants were
7283 never in a public release so they have been deleted. Changed dsa/rsa
7284 utilities to handle the new format: note no releases ever handled public
7285 keys so we should be OK.
7287 The primary motivation for this change is to avoid the same fiasco
7288 that dogs private keys: there are several incompatible private key
7289 formats some of which are standard and some OpenSSL specific and
7290 require various evil hacks to allow partial transparent handling and
7291 even then it doesn't work with DER formats. Given the option anything
7292 other than PKCS#8 should be dumped: but the other formats have to
7293 stay in the name of compatibility.
7295 With public keys and the benefit of hindsight one standard format
7296 is used which works with EVP_PKEY, RSA or DSA structures: though
7297 it clearly returns an error if you try to read the wrong kind of key.
7299 Added a -pubkey option to the 'x509' utility to output the public key.
7300 Also rename the EVP_PKEY_get_*() to EVP_PKEY_rget_*()
7301 (renamed to EVP_PKEY_get1_*() in the OpenSSL 0.9.5 release) and add
7302 EVP_PKEY_rset_*() functions (renamed to EVP_PKEY_set1_*())
7303 that do the same as the EVP_PKEY_assign_*() except they up the
7304 reference count of the added key (they don't "swallow" the
7308 *) Fixes to crypto/x509/by_file.c the code to read in certificates and
7309 CRLs would fail if the file contained no certificates or no CRLs:
7310 added a new function to read in both types and return the number
7311 read: this means that if none are read it will be an error. The
7312 DER versions of the certificate and CRL reader would always fail
7313 because it isn't possible to mix certificates and CRLs in DER format
7314 without choking one or the other routine. Changed this to just read
7315 a certificate: this is the best we can do. Also modified the code
7316 in apps/verify.c to take notice of return codes: it was previously
7317 attempting to read in certificates from NULL pointers and ignoring
7318 any errors: this is one reason why the cert and CRL reader seemed
7319 to work. It doesn't check return codes from the default certificate
7320 routines: these may well fail if the certificates aren't installed.
7323 *) Code to support otherName option in GeneralName.
7326 *) First update to verify code. Change the verify utility
7327 so it warns if it is passed a self signed certificate:
7328 for consistency with the normal behaviour. X509_verify
7329 has been modified to it will now verify a self signed
7330 certificate if *exactly* the same certificate appears
7331 in the store: it was previously impossible to trust a
7332 single self signed certificate. This means that:
7333 openssl verify ss.pem
7334 now gives a warning about a self signed certificate but
7335 openssl verify -CAfile ss.pem ss.pem
7339 *) For servers, store verify_result in SSL_SESSION data structure
7340 (and add it to external session representation).
7341 This is needed when client certificate verifications fails,
7342 but an application-provided verification callback (set by
7343 SSL_CTX_set_cert_verify_callback) allows accepting the session
7344 anyway (i.e. leaves x509_store_ctx->error != X509_V_OK
7345 but returns 1): When the session is reused, we have to set
7346 ssl->verify_result to the appropriate error code to avoid
7348 [Bodo Moeller, problem pointed out by Lutz Jaenicke]
7350 *) Fix a bug in the new PKCS#7 code: it didn't consider the
7351 case in PKCS7_dataInit() where the signed PKCS7 structure
7352 didn't contain any existing data because it was being created.
7353 [Po-Cheng Chen <pocheng@nst.com.tw>, slightly modified by Steve Henson]
7355 *) Add a salt to the key derivation routines in enc.c. This
7356 forms the first 8 bytes of the encrypted file. Also add a
7357 -S option to allow a salt to be input on the command line.
7360 *) New function X509_cmp(). Oddly enough there wasn't a function
7361 to compare two certificates. We do this by working out the SHA1
7362 hash and comparing that. X509_cmp() will be needed by the trust
7366 *) SSL_get1_session() is like SSL_get_session(), but increments
7367 the reference count in the SSL_SESSION returned.
7368 [Geoff Thorpe <geoff@eu.c2.net>]
7370 *) Fix for 'req': it was adding a null to request attributes.
7371 Also change the X509_LOOKUP and X509_INFO code to handle
7372 certificate auxiliary information.
7375 *) Add support for 40 and 64 bit RC2 and RC4 algorithms: document
7379 *) Add the possibility to add extra information to the memory leak
7380 detecting output, to form tracebacks, showing from where each
7381 allocation was originated: CRYPTO_push_info("constant string") adds
7382 the string plus current file name and line number to a per-thread
7383 stack, CRYPTO_pop_info() does the obvious, CRYPTO_remove_all_info()
7384 is like calling CYRPTO_pop_info() until the stack is empty.
7385 Also updated memory leak detection code to be multi-thread-safe.
7388 *) Add options -text and -noout to pkcs7 utility and delete the
7389 encryption options which never did anything. Update docs.
7392 *) Add options to some of the utilities to allow the pass phrase
7393 to be included on either the command line (not recommended on
7394 OSes like Unix) or read from the environment. Update the
7395 manpages and fix a few bugs.
7398 *) Add a few manpages for some of the openssl commands.
7401 *) Fix the -revoke option in ca. It was freeing up memory twice,
7402 leaking and not finding already revoked certificates.
7405 *) Extensive changes to support certificate auxiliary information.
7406 This involves the use of X509_CERT_AUX structure and X509_AUX
7407 functions. An X509_AUX function such as PEM_read_X509_AUX()
7408 can still read in a certificate file in the usual way but it
7409 will also read in any additional "auxiliary information". By
7410 doing things this way a fair degree of compatibility can be
7411 retained: existing certificates can have this information added
7412 using the new 'x509' options.
7414 Current auxiliary information includes an "alias" and some trust
7415 settings. The trust settings will ultimately be used in enhanced
7416 certificate chain verification routines: currently a certificate
7417 can only be trusted if it is self signed and then it is trusted
7421 *) Fix assembler for Alpha (tested only on DEC OSF not Linux or *BSD).
7422 The problem was that one of the replacement routines had not been working
7423 since SSLeay releases. For now the offending routine has been replaced
7424 with non-optimised assembler. Even so, this now gives around 95%
7425 performance improvement for 1024 bit RSA signs.
7428 *) Hack to fix PKCS#7 decryption when used with some unorthodox RC2
7429 handling. Most clients have the effective key size in bits equal to
7430 the key length in bits: so a 40 bit RC2 key uses a 40 bit (5 byte) key.
7431 A few however don't do this and instead use the size of the decrypted key
7432 to determine the RC2 key length and the AlgorithmIdentifier to determine
7433 the effective key length. In this case the effective key length can still
7434 be 40 bits but the key length can be 168 bits for example. This is fixed
7435 by manually forcing an RC2 key into the EVP_PKEY structure because the
7436 EVP code can't currently handle unusual RC2 key sizes: it always assumes
7437 the key length and effective key length are equal.
7440 *) Add a bunch of functions that should simplify the creation of
7441 X509_NAME structures. Now you should be able to do:
7442 X509_NAME_add_entry_by_txt(nm, "CN", MBSTRING_ASC, "Steve", -1, -1, 0);
7443 and have it automatically work out the correct field type and fill in
7444 the structures. The more adventurous can try:
7445 X509_NAME_add_entry_by_txt(nm, field, MBSTRING_UTF8, str, -1, -1, 0);
7446 and it will (hopefully) work out the correct multibyte encoding.
7449 *) Change the 'req' utility to use the new field handling and multibyte
7450 copy routines. Before the DN field creation was handled in an ad hoc
7451 way in req, ca, and x509 which was rather broken and didn't support
7452 BMPStrings or UTF8Strings. Since some software doesn't implement
7453 BMPStrings or UTF8Strings yet, they can be enabled using the config file
7454 using the dirstring_type option. See the new comment in the default
7455 openssl.cnf for more info.
7458 *) Make crypto/rand/md_rand.c more robust:
7459 - Assure unique random numbers after fork().
7460 - Make sure that concurrent threads access the global counter and
7461 md serializably so that we never lose entropy in them
7462 or use exactly the same state in multiple threads.
7463 Access to the large state is not always serializable because
7464 the additional locking could be a performance killer, and
7465 md should be large enough anyway.
7468 *) New file apps/app_rand.c with commonly needed functionality
7469 for handling the random seed file.
7471 Use the random seed file in some applications that previously did not:
7473 dsaparam -genkey (which also ignored its '-rand' option),
7476 x509 (when signing).
7477 Except on systems with /dev/urandom, it is crucial to have a random
7478 seed file at least for key creation, DSA signing, and for DH exchanges;
7479 for RSA signatures we could do without one.
7481 gendh and gendsa (unlike genrsa) used to read only the first byte
7482 of each file listed in the '-rand' option. The function as previously
7483 found in genrsa is now in app_rand.c and is used by all programs
7484 that support '-rand'.
7487 *) In RAND_write_file, use mode 0600 for creating files;
7488 don't just chmod when it may be too late.
7491 *) Report an error from X509_STORE_load_locations
7492 when X509_LOOKUP_load_file or X509_LOOKUP_add_dir failed.
7495 *) New function ASN1_mbstring_copy() this copies a string in either
7496 ASCII, Unicode, Universal (4 bytes per character) or UTF8 format
7497 into an ASN1_STRING type. A mask of permissible types is passed
7498 and it chooses the "minimal" type to use or an error if not type
7502 *) Add function equivalents to the various macros in asn1.h. The old
7503 macros are retained with an M_ prefix. Code inside the library can
7504 use the M_ macros. External code (including the openssl utility)
7505 should *NOT* in order to be "shared library friendly".
7508 *) Add various functions that can check a certificate's extensions
7509 to see if it usable for various purposes such as SSL client,
7510 server or S/MIME and CAs of these types. This is currently
7511 VERY EXPERIMENTAL but will ultimately be used for certificate chain
7512 verification. Also added a -purpose flag to x509 utility to
7513 print out all the purposes.
7516 *) Add a CRYPTO_EX_DATA to X509 certificate structure and associated
7520 *) New X509V3_{X509,CRL,REVOKED}_get_d2i() functions. These will search
7521 for, obtain and decode and extension and obtain its critical flag.
7522 This allows all the necessary extension code to be handled in a
7523 single function call.
7526 *) RC4 tune-up featuring 30-40% performance improvement on most RISC
7527 platforms. See crypto/rc4/rc4_enc.c for further details.
7530 *) New -noout option to asn1parse. This causes no output to be produced
7531 its main use is when combined with -strparse and -out to extract data
7532 from a file (which may not be in ASN.1 format).
7535 *) Fix for pkcs12 program. It was hashing an invalid certificate pointer
7536 when producing the local key id.
7537 [Richard Levitte <levitte@stacken.kth.se>]
7539 *) New option -dhparam in s_server. This allows a DH parameter file to be
7540 stated explicitly. If it is not stated then it tries the first server
7541 certificate file. The previous behaviour hard coded the filename
7545 *) Add -pubin and -pubout options to the rsa and dsa commands. These allow
7546 a public key to be input or output. For example:
7547 openssl rsa -in key.pem -pubout -out pubkey.pem
7548 Also added necessary DSA public key functions to handle this.
7551 *) Fix so PKCS7_dataVerify() doesn't crash if no certificates are contained
7552 in the message. This was handled by allowing
7553 X509_find_by_issuer_and_serial() to tolerate a NULL passed to it.
7554 [Steve Henson, reported by Sampo Kellomaki <sampo@mail.neuronio.pt>]
7556 *) Fix for bug in d2i_ASN1_bytes(): other ASN1 functions add an extra null
7557 to the end of the strings whereas this didn't. This would cause problems
7558 if strings read with d2i_ASN1_bytes() were later modified.
7559 [Steve Henson, reported by Arne Ansper <arne@ats.cyber.ee>]
7561 *) Fix for base64 decode bug. When a base64 bio reads only one line of
7562 data and it contains EOF it will end up returning an error. This is
7563 caused by input 46 bytes long. The cause is due to the way base64
7564 BIOs find the start of base64 encoded data. They do this by trying a
7565 trial decode on each line until they find one that works. When they
7566 do a flag is set and it starts again knowing it can pass all the
7567 data directly through the decoder. Unfortunately it doesn't reset
7568 the context it uses. This means that if EOF is reached an attempt
7569 is made to pass two EOFs through the context and this causes the
7570 resulting error. This can also cause other problems as well. As is
7571 usual with these problems it takes *ages* to find and the fix is
7572 trivial: move one line.
7573 [Steve Henson, reported by ian@uns.ns.ac.yu (Ivan Nejgebauer) ]
7575 *) Ugly workaround to get s_client and s_server working under Windows. The
7576 old code wouldn't work because it needed to select() on sockets and the
7577 tty (for keypresses and to see if data could be written). Win32 only
7578 supports select() on sockets so we select() with a 1s timeout on the
7579 sockets and then see if any characters are waiting to be read, if none
7580 are present then we retry, we also assume we can always write data to
7581 the tty. This isn't nice because the code then blocks until we've
7582 received a complete line of data and it is effectively polling the
7583 keyboard at 1s intervals: however it's quite a bit better than not
7584 working at all :-) A dedicated Windows application might handle this
7585 with an event loop for example.
7588 *) Enhance RSA_METHOD structure. Now there are two extra methods, rsa_sign
7589 and rsa_verify. When the RSA_FLAGS_SIGN_VER option is set these functions
7590 will be called when RSA_sign() and RSA_verify() are used. This is useful
7591 if rsa_pub_dec() and rsa_priv_enc() equivalents are not available.
7592 For this to work properly RSA_public_decrypt() and RSA_private_encrypt()
7593 should *not* be used: RSA_sign() and RSA_verify() must be used instead.
7594 This necessitated the support of an extra signature type NID_md5_sha1
7595 for SSL signatures and modifications to the SSL library to use it instead
7596 of calling RSA_public_decrypt() and RSA_private_encrypt().
7599 *) Add new -verify -CAfile and -CApath options to the crl program, these
7600 will lookup a CRL issuers certificate and verify the signature in a
7601 similar way to the verify program. Tidy up the crl program so it
7602 no longer accesses structures directly. Make the ASN1 CRL parsing a bit
7603 less strict. It will now permit CRL extensions even if it is not
7604 a V2 CRL: this will allow it to tolerate some broken CRLs.
7607 *) Initialize all non-automatic variables each time one of the openssl
7608 sub-programs is started (this is necessary as they may be started
7609 multiple times from the "OpenSSL>" prompt).
7610 [Lennart Bang, Bodo Moeller]
7612 *) Preliminary compilation option RSA_NULL which disables RSA crypto without
7613 removing all other RSA functionality (this is what NO_RSA does). This
7614 is so (for example) those in the US can disable those operations covered
7615 by the RSA patent while allowing storage and parsing of RSA keys and RSA
7619 *) Non-copying interface to BIO pairs.
7620 (still largely untested)
7623 *) New function ANS1_tag2str() to convert an ASN1 tag to a descriptive
7624 ASCII string. This was handled independently in various places before.
7627 *) New functions UTF8_getc() and UTF8_putc() that parse and generate
7628 UTF8 strings a character at a time.
7631 *) Use client_version from client hello to select the protocol
7632 (s23_srvr.c) and for RSA client key exchange verification
7633 (s3_srvr.c), as required by the SSL 3.0/TLS 1.0 specifications.
7636 *) Add various utility functions to handle SPKACs, these were previously
7637 handled by poking round in the structure internals. Added new function
7638 NETSCAPE_SPKI_print() to print out SPKAC and a new utility 'spkac' to
7639 print, verify and generate SPKACs. Based on an original idea from
7640 Massimiliano Pala <madwolf@comune.modena.it> but extensively modified.
7643 *) RIPEMD160 is operational on all platforms and is back in 'make test'.
7646 *) Allow the config file extension section to be overwritten on the
7647 command line. Based on an original idea from Massimiliano Pala
7648 <madwolf@comune.modena.it>. The new option is called -extensions
7649 and can be applied to ca, req and x509. Also -reqexts to override
7650 the request extensions in req and -crlexts to override the crl extensions
7654 *) Add new feature to the SPKAC handling in ca. Now you can include
7655 the same field multiple times by preceding it by "XXXX." for example:
7658 this is the same syntax as used in the req config file.
7661 *) Allow certificate extensions to be added to certificate requests. These
7662 are specified in a 'req_extensions' option of the req section of the
7663 config file. They can be printed out with the -text option to req but
7664 are otherwise ignored at present.
7667 *) Fix a horrible bug in enc_read() in crypto/evp/bio_enc.c: if the first
7668 data read consists of only the final block it would not decrypted because
7669 EVP_CipherUpdate() would correctly report zero bytes had been decrypted.
7670 A misplaced 'break' also meant the decrypted final block might not be
7671 copied until the next read.
7674 *) Initial support for DH_METHOD. Again based on RSA_METHOD. Also added
7675 a few extra parameters to the DH structure: these will be useful if
7676 for example we want the value of 'q' or implement X9.42 DH.
7679 *) Initial support for DSA_METHOD. This is based on the RSA_METHOD and
7680 provides hooks that allow the default DSA functions or functions on a
7681 "per key" basis to be replaced. This allows hardware acceleration and
7682 hardware key storage to be handled without major modification to the
7683 library. Also added low level modexp hooks and CRYPTO_EX structure and
7684 associated functions.
7687 *) Add a new flag to memory BIOs, BIO_FLAG_MEM_RDONLY. This marks the BIO
7688 as "read only": it can't be written to and the buffer it points to will
7689 not be freed. Reading from a read only BIO is much more efficient than
7690 a normal memory BIO. This was added because there are several times when
7691 an area of memory needs to be read from a BIO. The previous method was
7692 to create a memory BIO and write the data to it, this results in two
7693 copies of the data and an O(n^2) reading algorithm. There is a new
7694 function BIO_new_mem_buf() which creates a read only memory BIO from
7695 an area of memory. Also modified the PKCS#7 routines to use read only
7699 *) Bugfix: ssl23_get_client_hello did not work properly when called in
7700 state SSL23_ST_SR_CLNT_HELLO_B, i.e. when the first 7 bytes of
7701 a SSLv2-compatible client hello for SSLv3 or TLSv1 could be read,
7702 but a retry condition occured while trying to read the rest.
7705 *) The PKCS7_ENC_CONTENT_new() function was setting the content type as
7706 NID_pkcs7_encrypted by default: this was wrong since this should almost
7707 always be NID_pkcs7_data. Also modified the PKCS7_set_type() to handle
7708 the encrypted data type: this is a more sensible place to put it and it
7709 allows the PKCS#12 code to be tidied up that duplicated this
7713 *) Changed obj_dat.pl script so it takes its input and output files on
7714 the command line. This should avoid shell escape redirection problems
7718 *) Initial support for certificate extension requests, these are included
7719 in things like Xenroll certificate requests. Included functions to allow
7720 extensions to be obtained and added.
7723 *) -crlf option to s_client and s_server for sending newlines as
7724 CRLF (as required by many protocols).
7727 Changes between 0.9.3a and 0.9.4 [09 Aug 1999]
7729 *) Install libRSAglue.a when OpenSSL is built with RSAref.
7730 [Ralf S. Engelschall]
7732 *) A few more ``#ifndef NO_FP_API / #endif'' pairs for consistency.
7733 [Andrija Antonijevic <TheAntony2@bigfoot.com>]
7735 *) Fix -startdate and -enddate (which was missing) arguments to 'ca'
7739 *) New function DSA_dup_DH, which duplicates DSA parameters/keys as
7740 DH parameters/keys (q is lost during that conversion, but the resulting
7741 DH parameters contain its length).
7743 For 1024-bit p, DSA_generate_parameters followed by DSA_dup_DH is
7744 much faster than DH_generate_parameters (which creates parameters
7745 where p = 2*q + 1), and also the smaller q makes DH computations
7746 much more efficient (160-bit exponentiation instead of 1024-bit
7747 exponentiation); so this provides a convenient way to support DHE
7748 ciphersuites in SSL/TLS servers (see ssl/ssltest.c). It is of
7749 utter importance to use
7750 SSL_CTX_set_options(s_ctx, SSL_OP_SINGLE_DH_USE);
7752 SSL_set_options(s_ctx, SSL_OP_SINGLE_DH_USE);
7753 when such DH parameters are used, because otherwise small subgroup
7754 attacks may become possible!
7757 *) Avoid memory leak in i2d_DHparams.
7760 *) Allow the -k option to be used more than once in the enc program:
7761 this allows the same encrypted message to be read by multiple recipients.
7764 *) New function OBJ_obj2txt(buf, buf_len, a, no_name), this converts
7765 an ASN1_OBJECT to a text string. If the "no_name" parameter is set then
7766 it will always use the numerical form of the OID, even if it has a short
7770 *) Added an extra RSA flag: RSA_FLAG_EXT_PKEY. Previously the rsa_mod_exp
7771 method only got called if p,q,dmp1,dmq1,iqmp components were present,
7772 otherwise bn_mod_exp was called. In the case of hardware keys for example
7773 no private key components need be present and it might store extra data
7774 in the RSA structure, which cannot be accessed from bn_mod_exp.
7775 By setting RSA_FLAG_EXT_PKEY rsa_mod_exp will always be called for
7776 private key operations.
7779 *) Added support for SPARC Linux.
7782 *) pem_password_cb function type incompatibly changed from
7783 typedef int pem_password_cb(char *buf, int size, int rwflag);
7785 ....(char *buf, int size, int rwflag, void *userdata);
7786 so that applications can pass data to their callbacks:
7787 The PEM[_ASN1]_{read,write}... functions and macros now take an
7788 additional void * argument, which is just handed through whenever
7789 the password callback is called.
7790 [Damien Miller <dmiller@ilogic.com.au>; tiny changes by Bodo Moeller]
7792 New function SSL_CTX_set_default_passwd_cb_userdata.
7794 Compatibility note: As many C implementations push function arguments
7795 onto the stack in reverse order, the new library version is likely to
7796 interoperate with programs that have been compiled with the old
7797 pem_password_cb definition (PEM_whatever takes some data that
7798 happens to be on the stack as its last argument, and the callback
7799 just ignores this garbage); but there is no guarantee whatsoever that
7802 *) The -DPLATFORM="\"$(PLATFORM)\"" definition and the similar -DCFLAGS=...
7803 (both in crypto/Makefile.ssl for use by crypto/cversion.c) caused
7804 problems not only on Windows, but also on some Unix platforms.
7805 To avoid problematic command lines, these definitions are now in an
7806 auto-generated file crypto/buildinf.h (created by crypto/Makefile.ssl
7807 for standard "make" builds, by util/mk1mf.pl for "mk1mf" builds).
7810 *) MIPS III/IV assembler module is reimplemented.
7813 *) More DES library cleanups: remove references to srand/rand and
7814 delete an unused file.
7817 *) Add support for the the free Netwide assembler (NASM) under Win32,
7818 since not many people have MASM (ml) and it can be hard to obtain.
7819 This is currently experimental but it seems to work OK and pass all
7820 the tests. Check out INSTALL.W32 for info.
7823 *) Fix memory leaks in s3_clnt.c: All non-anonymous SSL3/TLS1 connections
7824 without temporary keys kept an extra copy of the server key,
7825 and connections with temporary keys did not free everything in case
7829 *) New function RSA_check_key and new openssl rsa option -check
7830 for verifying the consistency of RSA keys.
7831 [Ulf Moeller, Bodo Moeller]
7833 *) Various changes to make Win32 compile work:
7834 1. Casts to avoid "loss of data" warnings in p5_crpt2.c
7835 2. Change unsigned int to int in b_dump.c to avoid "signed/unsigned
7836 comparison" warnings.
7837 3. Add sk_<TYPE>_sort to DEF file generator and do make update.
7840 *) Add a debugging option to PKCS#5 v2 key generation function: when
7841 you #define DEBUG_PKCS5V2 passwords, salts, iteration counts and
7842 derived keys are printed to stderr.
7845 *) Copy the flags in ASN1_STRING_dup().
7846 [Roman E. Pavlov <pre@mo.msk.ru>]
7848 *) The x509 application mishandled signing requests containing DSA
7849 keys when the signing key was also DSA and the parameters didn't match.
7851 It was supposed to omit the parameters when they matched the signing key:
7852 the verifying software was then supposed to automatically use the CA's
7853 parameters if they were absent from the end user certificate.
7855 Omitting parameters is no longer recommended. The test was also
7856 the wrong way round! This was probably due to unusual behaviour in
7857 EVP_cmp_parameters() which returns 1 if the parameters match.
7858 This meant that parameters were omitted when they *didn't* match and
7859 the certificate was useless. Certificates signed with 'ca' didn't have
7861 [Steve Henson, reported by Doug Erickson <Doug.Erickson@Part.NET>]
7863 *) Memory leak checking (-DCRYPTO_MDEBUG) had some problems.
7864 The interface is as follows:
7865 Applications can use
7866 CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_ON) aka MemCheck_start(),
7867 CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_OFF) aka MemCheck_stop();
7868 "off" is now the default.
7869 The library internally uses
7870 CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_DISABLE) aka MemCheck_off(),
7871 CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_ENABLE) aka MemCheck_on()
7872 to disable memory-checking temporarily.
7874 Some inconsistent states that previously were possible (and were
7875 even the default) are now avoided.
7877 -DCRYPTO_MDEBUG_TIME is new and additionally stores the current time
7878 with each memory chunk allocated; this is occasionally more helpful
7879 than just having a counter.
7881 -DCRYPTO_MDEBUG_THREAD is also new and adds the thread ID.
7883 -DCRYPTO_MDEBUG_ALL enables all of the above, plus any future
7887 *) Introduce "mode" for SSL structures (with defaults in SSL_CTX),
7888 which largely parallels "options", but is for changing API behaviour,
7889 whereas "options" are about protocol behaviour.
7890 Initial "mode" flags are:
7892 SSL_MODE_ENABLE_PARTIAL_WRITE Allow SSL_write to report success when
7893 a single record has been written.
7894 SSL_MODE_ACCEPT_MOVING_WRITE_BUFFER Don't insist that SSL_write
7895 retries use the same buffer location.
7896 (But all of the contents must be
7900 *) Bugfix: SSL_set_options ignored its parameter, only SSL_CTX_set_options
7903 *) Fix problems with no-hmac etc.
7904 [Ulf Möller, pointed out by Brian Wellington <bwelling@tislabs.com>]
7906 *) New functions RSA_get_default_method(), RSA_set_method() and
7907 RSA_get_method(). These allows replacement of RSA_METHODs without having
7908 to mess around with the internals of an RSA structure.
7911 *) Fix memory leaks in DSA_do_sign and DSA_is_prime.
7912 Also really enable memory leak checks in openssl.c and in some
7914 [Chad C. Mulligan, Bodo Moeller]
7916 *) Fix a bug in d2i_ASN1_INTEGER() and i2d_ASN1_INTEGER() which can mess
7917 up the length of negative integers. This has now been simplified to just
7918 store the length when it is first determined and use it later, rather
7919 than trying to keep track of where data is copied and updating it to
7921 [Steve Henson, reported by Brien Wheeler
7922 <bwheeler@authentica-security.com>]
7924 *) Add a new function PKCS7_signatureVerify. This allows the verification
7925 of a PKCS#7 signature but with the signing certificate passed to the
7926 function itself. This contrasts with PKCS7_dataVerify which assumes the
7927 certificate is present in the PKCS#7 structure. This isn't always the
7928 case: certificates can be omitted from a PKCS#7 structure and be
7929 distributed by "out of band" means (such as a certificate database).
7932 *) Complete the PEM_* macros with DECLARE_PEM versions to replace the
7933 function prototypes in pem.h, also change util/mkdef.pl to add the
7934 necessary function names.
7937 *) mk1mf.pl (used by Windows builds) did not properly read the
7938 options set by Configure in the top level Makefile, and Configure
7939 was not even able to write more than one option correctly.
7940 Fixed, now "no-idea no-rc5 -DCRYPTO_MDEBUG" etc. works as intended.
7943 *) New functions CONF_load_bio() and CONF_load_fp() to allow a config
7944 file to be loaded from a BIO or FILE pointer. The BIO version will
7945 for example allow memory BIOs to contain config info.
7948 *) New function "CRYPTO_num_locks" that returns CRYPTO_NUM_LOCKS.
7949 Whoever hopes to achieve shared-library compatibility across versions
7950 must use this, not the compile-time macro.
7951 (Exercise 0.9.4: Which is the minimum library version required by
7953 Note: All this applies only to multi-threaded programs, others don't
7957 *) Add missing case to s3_clnt.c state machine -- one of the new SSL tests
7958 through a BIO pair triggered the default case, i.e.
7959 SSLerr(...,SSL_R_UNKNOWN_STATE).
7962 *) New "BIO pair" concept (crypto/bio/bss_bio.c) so that applications
7963 can use the SSL library even if none of the specific BIOs is
7967 *) Fix a bug in i2d_DSAPublicKey() which meant it returned the wrong value
7968 for the encoded length.
7969 [Jeon KyoungHo <khjeon@sds.samsung.co.kr>]
7971 *) Add initial documentation of the X509V3 functions.
7974 *) Add a new pair of functions PEM_write_PKCS8PrivateKey() and
7975 PEM_write_bio_PKCS8PrivateKey() that are equivalent to
7976 PEM_write_PrivateKey() and PEM_write_bio_PrivateKey() but use the more
7977 secure PKCS#8 private key format with a high iteration count.
7980 *) Fix determination of Perl interpreter: A perl or perl5
7981 _directory_ in $PATH was also accepted as the interpreter.
7982 [Ralf S. Engelschall]
7984 *) Fix demos/sign/sign.c: well there wasn't anything strictly speaking
7985 wrong with it but it was very old and did things like calling
7986 PEM_ASN1_read() directly and used MD5 for the hash not to mention some
7990 *) Fix demos/selfsign.c: it used obsolete and deleted functions, changed
7991 to use the new extension code.
7994 *) Implement the PEM_read/PEM_write functions in crypto/pem/pem_all.c
7995 with macros. This should make it easier to change their form, add extra
7996 arguments etc. Fix a few PEM prototypes which didn't have cipher as a
8000 *) Add to configuration table a new entry that can specify an alternative
8001 name for unistd.h (for pre-POSIX systems); we need this for NeXTstep,
8002 according to Mark Crispin <MRC@Panda.COM>.
8006 *) DES CBC did not update the IV. Weird.
8009 des_cbc_encrypt does not update the IV, but des_ncbc_encrypt does.
8010 Changing the behaviour of the former might break existing programs --
8011 where IV updating is needed, des_ncbc_encrypt can be used.
8014 *) When bntest is run from "make test" it drives bc to check its
8015 calculations, as well as internally checking them. If an internal check
8016 fails, it needs to cause bc to give a non-zero result or make test carries
8017 on without noticing the failure. Fixed.
8020 *) DES library cleanups.
8023 *) Add support for PKCS#5 v2.0 PBE algorithms. This will permit PKCS#8 to be
8024 used with any cipher unlike PKCS#5 v1.5 which can at most handle 64 bit
8025 ciphers. NOTE: although the key derivation function has been verified
8026 against some published test vectors it has not been extensively tested
8027 yet. Added a -v2 "cipher" option to pkcs8 application to allow the use
8031 *) Instead of "mkdir -p", which is not fully portable, use new
8032 Perl script "util/mkdir-p.pl".
8035 *) Rewrite the way password based encryption (PBE) is handled. It used to
8036 assume that the ASN1 AlgorithmIdentifier parameter was a PBEParameter
8037 structure. This was true for the PKCS#5 v1.5 and PKCS#12 PBE algorithms
8038 but doesn't apply to PKCS#5 v2.0 where it can be something else. Now
8039 the 'parameter' field of the AlgorithmIdentifier is passed to the
8040 underlying key generation function so it must do its own ASN1 parsing.
8041 This has also changed the EVP_PBE_CipherInit() function which now has a
8042 'parameter' argument instead of literal salt and iteration count values
8043 and the function EVP_PBE_ALGOR_CipherInit() has been deleted.
8046 *) Support for PKCS#5 v1.5 compatible password based encryption algorithms
8047 and PKCS#8 functionality. New 'pkcs8' application linked to openssl.
8048 Needed to change the PEM_STRING_EVP_PKEY value which was just "PRIVATE
8049 KEY" because this clashed with PKCS#8 unencrypted string. Since this
8050 value was just used as a "magic string" and not used directly its
8051 value doesn't matter.
8054 *) Introduce some semblance of const correctness to BN. Shame C doesn't
8058 *) "linux-sparc64" configuration (ultrapenguin).
8059 [Ray Miller <ray.miller@oucs.ox.ac.uk>]
8060 "linux-sparc" configuration.
8061 [Christian Forster <fo@hawo.stw.uni-erlangen.de>]
8063 *) config now generates no-xxx options for missing ciphers.
8066 *) Support the EBCDIC character set (work in progress).
8067 File ebcdic.c not yet included because it has a different license.
8068 [Martin Kraemer <Martin.Kraemer@MchP.Siemens.De>]
8070 *) Support BS2000/OSD-POSIX.
8071 [Martin Kraemer <Martin.Kraemer@MchP.Siemens.De>]
8073 *) Make callbacks for key generation use void * instead of char *.
8076 *) Make S/MIME samples compile (not yet tested).
8079 *) Additional typesafe stacks.
8082 *) New configuration variants "bsdi-elf-gcc" (BSD/OS 4.x).
8086 Changes between 0.9.3 and 0.9.3a [29 May 1999]
8088 *) New configuration variant "sco5-gcc".
8090 *) Updated some demos.
8091 [Sean O Riordain, Wade Scholine]
8093 *) Add missing BIO_free at exit of pkcs12 application.
8096 *) Fix memory leak in conf.c.
8099 *) Updates for Win32 to assembler version of MD5.
8102 *) Set #! path to perl in apps/der_chop to where we found it
8103 instead of using a fixed path.
8106 *) SHA library changes for irix64-mips4-cc.
8109 *) Improvements for VMS support.
8113 Changes between 0.9.2b and 0.9.3 [24 May 1999]
8115 *) Bignum library bug fix. IRIX 6 passes "make test" now!
8116 This also avoids the problems with SC4.2 and unpatched SC5.
8117 [Andy Polyakov <appro@fy.chalmers.se>]
8119 *) New functions sk_num, sk_value and sk_set to replace the previous macros.
8120 These are required because of the typesafe stack would otherwise break
8121 existing code. If old code used a structure member which used to be STACK
8122 and is now STACK_OF (for example cert in a PKCS7_SIGNED structure) with
8123 sk_num or sk_value it would produce an error because the num, data members
8124 are not present in STACK_OF. Now it just produces a warning. sk_set
8125 replaces the old method of assigning a value to sk_value
8126 (e.g. sk_value(x, i) = y) which the library used in a few cases. Any code
8127 that does this will no longer work (and should use sk_set instead) but
8128 this could be regarded as a "questionable" behaviour anyway.
8131 *) Fix most of the other PKCS#7 bugs. The "experimental" code can now
8132 correctly handle encrypted S/MIME data.
8135 *) Change type of various DES function arguments from des_cblock
8136 (which means, in function argument declarations, pointer to char)
8137 to des_cblock * (meaning pointer to array with 8 char elements),
8138 which allows the compiler to do more typechecking; it was like
8139 that back in SSLeay, but with lots of ugly casts.
8141 Introduce new type const_des_cblock.
8144 *) Reorganise the PKCS#7 library and get rid of some of the more obvious
8145 problems: find RecipientInfo structure that matches recipient certificate
8146 and initialise the ASN1 structures properly based on passed cipher.
8149 *) Belatedly make the BN tests actually check the results.
8152 *) Fix the encoding and decoding of negative ASN1 INTEGERS and conversion
8153 to and from BNs: it was completely broken. New compilation option
8154 NEG_PUBKEY_BUG to allow for some broken certificates that encode public
8155 key elements as negative integers.
8158 *) Reorganize and speed up MD5.
8159 [Andy Polyakov <appro@fy.chalmers.se>]
8162 [Richard Levitte <richard@levitte.org>]
8164 *) New option -out to asn1parse to allow the parsed structure to be
8165 output to a file. This is most useful when combined with the -strparse
8166 option to examine the output of things like OCTET STRINGS.
8169 *) Make SSL library a little more fool-proof by not requiring any longer
8170 that SSL_set_{accept,connect}_state be called before
8171 SSL_{accept,connect} may be used (SSL_set_..._state is omitted
8172 in many applications because usually everything *appeared* to work as
8173 intended anyway -- now it really works as intended).
8176 *) Move openssl.cnf out of lib/.
8179 *) Fix various things to let OpenSSL even pass ``egcc -pipe -O2 -Wall
8180 -Wshadow -Wpointer-arith -Wcast-align -Wmissing-prototypes
8181 -Wmissing-declarations -Wnested-externs -Winline'' with EGCS 1.1.2+
8182 [Ralf S. Engelschall]
8184 *) Various fixes to the EVP and PKCS#7 code. It may now be able to
8185 handle PKCS#7 enveloped data properly.
8186 [Sebastian Akerman <sak@parallelconsulting.com>, modified by Steve]
8188 *) Create a duplicate of the SSL_CTX's CERT in SSL_new instead of
8189 copying pointers. The cert_st handling is changed by this in
8190 various ways (and thus what used to be known as ctx->default_cert
8191 is now called ctx->cert, since we don't resort to s->ctx->[default_]cert
8192 any longer when s->cert does not give us what we need).
8193 ssl_cert_instantiate becomes obsolete by this change.
8194 As soon as we've got the new code right (possibly it already is?),
8195 we have solved a couple of bugs of the earlier code where s->cert
8196 was used as if it could not have been shared with other SSL structures.
8198 Note that using the SSL API in certain dirty ways now will result
8199 in different behaviour than observed with earlier library versions:
8200 Changing settings for an SSL_CTX *ctx after having done s = SSL_new(ctx)
8201 does not influence s as it used to.
8203 In order to clean up things more thoroughly, inside SSL_SESSION
8204 we don't use CERT any longer, but a new structure SESS_CERT
8205 that holds per-session data (if available); currently, this is
8206 the peer's certificate chain and, for clients, the server's certificate
8207 and temporary key. CERT holds only those values that can have
8208 meaningful defaults in an SSL_CTX.
8211 *) New function X509V3_EXT_i2d() to create an X509_EXTENSION structure
8212 from the internal representation. Various PKCS#7 fixes: remove some
8213 evil casts and set the enc_dig_alg field properly based on the signing
8217 *) Allow PKCS#12 password to be set from the command line or the
8218 environment. Let 'ca' get its config file name from the environment
8219 variables "OPENSSL_CONF" or "SSLEAY_CONF" (for consistency with 'req'
8223 *) Allow certificate policies extension to use an IA5STRING for the
8224 organization field. This is contrary to the PKIX definition but
8225 VeriSign uses it and IE5 only recognises this form. Document 'x509'
8229 *) Add PEDANTIC compiler flag to allow compilation with gcc -pedantic,
8230 without disallowing inline assembler and the like for non-pedantic builds.
8233 *) Support Borland C++ builder.
8234 [Janez Jere <jj@void.si>, modified by Ulf Möller]
8239 *) SHA-1 cleanups and performance enhancements.
8240 [Andy Polyakov <appro@fy.chalmers.se>]
8242 *) Sparc v8plus assembler for the bignum library.
8243 [Andy Polyakov <appro@fy.chalmers.se>]
8245 *) Accept any -xxx and +xxx compiler options in Configure.
8248 *) Update HPUX configuration.
8251 *) Add missing sk_<type>_unshift() function to safestack.h
8252 [Ralf S. Engelschall]
8254 *) New function SSL_CTX_use_certificate_chain_file that sets the
8255 "extra_cert"s in addition to the certificate. (This makes sense
8256 only for "PEM" format files, as chains as a whole are not
8260 *) Support verify_depth from the SSL API.
8261 x509_vfy.c had what can be considered an off-by-one-error:
8262 Its depth (which was not part of the external interface)
8263 was actually counting the number of certificates in a chain;
8264 now it really counts the depth.
8267 *) Bugfix in crypto/x509/x509_cmp.c: The SSLerr macro was used
8268 instead of X509err, which often resulted in confusing error
8269 messages since the error codes are not globally unique
8270 (e.g. an alleged error in ssl3_accept when a certificate
8271 didn't match the private key).
8273 *) New function SSL_CTX_set_session_id_context that allows to set a default
8274 value (so that you don't need SSL_set_session_id_context for each
8275 connection using the SSL_CTX).
8278 *) OAEP decoding bug fix.
8281 *) Support INSTALL_PREFIX for package builders, as proposed by
8285 *) New Configure options "threads" and "no-threads". For systems
8286 where the proper compiler options are known (currently Solaris
8287 and Linux), "threads" is the default.
8290 *) New script util/mklink.pl as a faster substitute for util/mklink.sh.
8293 *) Install various scripts to $(OPENSSLDIR)/misc, not to
8294 $(INSTALLTOP)/bin -- they shouldn't clutter directories
8295 such as /usr/local/bin.
8298 *) "make linux-shared" to build shared libraries.
8299 [Niels Poppe <niels@netbox.org>]
8301 *) New Configure option no-<cipher> (rsa, idea, rc5, ...).
8304 *) Add the PKCS#12 API documentation to openssl.txt. Preliminary support for
8305 extension adding in x509 utility.
8308 *) Remove NOPROTO sections and error code comments.
8311 *) Partial rewrite of the DEF file generator to now parse the ANSI
8315 *) New Configure options --prefix=DIR and --openssldir=DIR.
8318 *) Complete rewrite of the error code script(s). It is all now handled
8319 by one script at the top level which handles error code gathering,
8320 header rewriting and C source file generation. It should be much better
8321 than the old method: it now uses a modified version of Ulf's parser to
8322 read the ANSI prototypes in all header files (thus the old K&R definitions
8323 aren't needed for error creation any more) and do a better job of
8324 translating function codes into names. The old 'ASN1 error code imbedded
8325 in a comment' is no longer necessary and it doesn't use .err files which
8326 have now been deleted. Also the error code call doesn't have to appear all
8327 on one line (which resulted in some large lines...).
8330 *) Change #include filenames from <foo.h> to <openssl/foo.h>.
8333 *) Change behaviour of ssl2_read when facing length-0 packets: Don't return
8334 0 (which usually indicates a closed connection), but continue reading.
8337 *) Fix some race conditions.
8340 *) Add support for CRL distribution points extension. Add Certificate
8341 Policies and CRL distribution points documentation.
8344 *) Move the autogenerated header file parts to crypto/opensslconf.h.
8347 *) Fix new 56-bit DES export ciphersuites: they were using 7 bytes instead of
8348 8 of keying material. Merlin has also confirmed interop with this fix
8349 between OpenSSL and Baltimore C/SSL 2.0 and J/SSL 2.0.
8350 [Merlin Hughes <merlin@baltimore.ie>]
8352 *) Fix lots of warnings.
8353 [Richard Levitte <levitte@stacken.kth.se>]
8355 *) In add_cert_dir() in crypto/x509/by_dir.c, break out of the loop if
8356 the directory spec didn't end with a LIST_SEPARATOR_CHAR.
8357 [Richard Levitte <levitte@stacken.kth.se>]
8359 *) Fix problems with sizeof(long) == 8.
8360 [Andy Polyakov <appro@fy.chalmers.se>]
8362 *) Change functions to ANSI C.
8365 *) Fix typos in error codes.
8366 [Martin Kraemer <Martin.Kraemer@MchP.Siemens.De>, Ulf Möller]
8368 *) Remove defunct assembler files from Configure.
8371 *) SPARC v8 assembler BIGNUM implementation.
8372 [Andy Polyakov <appro@fy.chalmers.se>]
8374 *) Support for Certificate Policies extension: both print and set.
8375 Various additions to support the r2i method this uses.
8378 *) A lot of constification, and fix a bug in X509_NAME_oneline() that could
8379 return a const string when you are expecting an allocated buffer.
8382 *) Add support for ASN1 types UTF8String and VISIBLESTRING, also the CHOICE
8383 types DirectoryString and DisplayText.
8386 *) Add code to allow r2i extensions to access the configuration database,
8387 add an LHASH database driver and add several ctx helper functions.
8390 *) Fix an evil bug in bn_expand2() which caused various BN functions to
8391 fail when they extended the size of a BIGNUM.
8394 *) Various utility functions to handle SXNet extension. Modify mkdef.pl to
8395 support typesafe stack.
8398 *) Fix typo in SSL_[gs]et_options().
8399 [Nils Frostberg <nils@medcom.se>]
8401 *) Delete various functions and files that belonged to the (now obsolete)
8402 old X509V3 handling code.
8405 *) New Configure option "rsaref".
8408 *) Don't auto-generate pem.h.
8411 *) Introduce type-safe ASN.1 SETs.
8414 *) Convert various additional casted stacks to type-safe STACK_OF() variants.
8415 [Ben Laurie, Ralf S. Engelschall, Steve Henson]
8417 *) Introduce type-safe STACKs. This will almost certainly break lots of code
8418 that links with OpenSSL (well at least cause lots of warnings), but fear
8419 not: the conversion is trivial, and it eliminates loads of evil casts. A
8420 few STACKed things have been converted already. Feel free to convert more.
8421 In the fullness of time, I'll do away with the STACK type altogether.
8424 *) Add `openssl ca -revoke <certfile>' facility which revokes a certificate
8425 specified in <certfile> by updating the entry in the index.txt file.
8426 This way one no longer has to edit the index.txt file manually for
8427 revoking a certificate. The -revoke option does the gory details now.
8428 [Massimiliano Pala <madwolf@openca.org>, Ralf S. Engelschall]
8430 *) Fix `openssl crl -noout -text' combination where `-noout' killed the
8431 `-text' option at all and this way the `-noout -text' combination was
8432 inconsistent in `openssl crl' with the friends in `openssl x509|rsa|dsa'.
8433 [Ralf S. Engelschall]
8435 *) Make sure a corresponding plain text error message exists for the
8436 X509_V_ERR_CERT_REVOKED/23 error number which can occur when a
8437 verify callback function determined that a certificate was revoked.
8438 [Ralf S. Engelschall]
8440 *) Bugfix: In test/testenc, don't test "openssl <cipher>" for
8441 ciphers that were excluded, e.g. by -DNO_IDEA. Also, test
8442 all available cipers including rc5, which was forgotten until now.
8443 In order to let the testing shell script know which algorithms
8444 are available, a new (up to now undocumented) command
8445 "openssl list-cipher-commands" is used.
8448 *) Bugfix: s_client occasionally would sleep in select() when
8449 it should have checked SSL_pending() first.
8452 *) New functions DSA_do_sign and DSA_do_verify to provide access to
8453 the raw DSA values prior to ASN.1 encoding.
8456 *) Tweaks to Configure
8457 [Niels Poppe <niels@netbox.org>]
8459 *) Add support for PKCS#5 v2.0 ASN1 PBES2 structures. No other support,
8463 *) New variables $(RANLIB) and $(PERL) in the Makefiles.
8466 *) New config option to avoid instructions that are illegal on the 80386.
8467 The default code is faster, but requires at least a 486.
8470 *) Got rid of old SSL2_CLIENT_VERSION (inconsistently used) and
8471 SSL2_SERVER_VERSION (not used at all) macros, which are now the
8472 same as SSL2_VERSION anyway.
8475 *) New "-showcerts" option for s_client.
8478 *) Still more PKCS#12 integration. Add pkcs12 application to openssl
8479 application. Various cleanups and fixes.
8482 *) More PKCS#12 integration. Add new pkcs12 directory with Makefile.ssl and
8483 modify error routines to work internally. Add error codes and PBE init
8484 to library startup routines.
8487 *) Further PKCS#12 integration. Added password based encryption, PKCS#8 and
8488 packing functions to asn1 and evp. Changed function names and error
8489 codes along the way.
8492 *) PKCS12 integration: and so it begins... First of several patches to
8493 slowly integrate PKCS#12 functionality into OpenSSL. Add PKCS#12
8494 objects to objects.h
8497 *) Add a new 'indent' option to some X509V3 extension code. Initial ASN1
8498 and display support for Thawte strong extranet extension.
8501 *) Add LinuxPPC support.
8502 [Jeff Dubrule <igor@pobox.org>]
8504 *) Get rid of redundant BN file bn_mulw.c, and rename bn_div64 to
8505 bn_div_words in alpha.s.
8506 [Hannes Reinecke <H.Reinecke@hw.ac.uk> and Ben Laurie]
8508 *) Make sure the RSA OAEP test is skipped under -DRSAref because
8509 OAEP isn't supported when OpenSSL is built with RSAref.
8510 [Ulf Moeller <ulf@fitug.de>]
8512 *) Move definitions of IS_SET/IS_SEQUENCE inside crypto/asn1/asn1.h
8513 so they no longer are missing under -DNOPROTO.
8514 [Soren S. Jorvang <soren@t.dk>]
8517 Changes between 0.9.1c and 0.9.2b [22 Mar 1999]
8519 *) Make SSL_get_peer_cert_chain() work in servers. Unfortunately, it still
8520 doesn't work when the session is reused. Coming soon!
8523 *) Fix a security hole, that allows sessions to be reused in the wrong
8524 context thus bypassing client cert protection! All software that uses
8525 client certs and session caches in multiple contexts NEEDS PATCHING to
8526 allow session reuse! A fuller solution is in the works.
8527 [Ben Laurie, problem pointed out by Holger Reif, Bodo Moeller (and ???)]
8529 *) Some more source tree cleanups (removed obsolete files
8530 crypto/bf/asm/bf586.pl, test/test.txt and crypto/sha/asm/f.s; changed
8531 permission on "config" script to be executable) and a fix for the INSTALL
8533 [Ulf Moeller <ulf@fitug.de>]
8535 *) Remove some legacy and erroneous uses of malloc, free instead of
8537 [Lennart Bang <lob@netstream.se>, with minor changes by Steve]
8539 *) Make rsa_oaep_test return non-zero on error.
8540 [Ulf Moeller <ulf@fitug.de>]
8542 *) Add support for native Solaris shared libraries. Configure
8543 solaris-sparc-sc4-pic, make, then run shlib/solaris-sc4.sh. It'd be nice
8544 if someone would make that last step automatic.
8545 [Matthias Loepfe <Matthias.Loepfe@AdNovum.CH>]
8547 *) ctx_size was not built with the right compiler during "make links". Fixed.
8550 *) Change the meaning of 'ALL' in the cipher list. It now means "everything
8551 except NULL ciphers". This means the default cipher list will no longer
8552 enable NULL ciphers. They need to be specifically enabled e.g. with
8553 the string "DEFAULT:eNULL".
8556 *) Fix to RSA private encryption routines: if p < q then it would
8557 occasionally produce an invalid result. This will only happen with
8558 externally generated keys because OpenSSL (and SSLeay) ensure p > q.
8561 *) Be less restrictive and allow also `perl util/perlpath.pl
8562 /path/to/bin/perl' in addition to `perl util/perlpath.pl /path/to/bin',
8563 because this way one can also use an interpreter named `perl5' (which is
8564 usually the name of Perl 5.xxx on platforms where an Perl 4.x is still
8565 installed as `perl').
8566 [Matthias Loepfe <Matthias.Loepfe@adnovum.ch>]
8568 *) Let util/clean-depend.pl work also with older Perl 5.00x versions.
8569 [Matthias Loepfe <Matthias.Loepfe@adnovum.ch>]
8571 *) Fix Makefile.org so CC,CFLAG etc are passed to 'make links' add
8572 advapi32.lib to Win32 build and change the pem test comparision
8573 to fc.exe (thanks to Ulrich Kroener <kroneru@yahoo.com> for the
8574 suggestion). Fix misplaced ASNI prototypes and declarations in evp.h
8575 and crypto/des/ede_cbcm_enc.c.
8578 *) DES quad checksum was broken on big-endian architectures. Fixed.
8581 *) Comment out two functions in bio.h that aren't implemented. Fix up the
8582 Win32 test batch file so it (might) work again. The Win32 test batch file
8583 is horrible: I feel ill....
8586 *) Move various #ifdefs around so NO_SYSLOG, NO_DIRENT etc are now selected
8587 in e_os.h. Audit of header files to check ANSI and non ANSI
8588 sections: 10 functions were absent from non ANSI section and not exported
8589 from Windows DLLs. Fixed up libeay.num for new functions.
8592 *) Make `openssl version' output lines consistent.
8593 [Ralf S. Engelschall]
8595 *) Fix Win32 symbol export lists for BIO functions: Added
8596 BIO_get_ex_new_index, BIO_get_ex_num, BIO_get_ex_data and BIO_set_ex_data
8597 to ms/libeay{16,32}.def.
8598 [Ralf S. Engelschall]
8600 *) Second round of fixing the OpenSSL perl/ stuff. It now at least compiled
8601 fine under Unix and passes some trivial tests I've now added. But the
8602 whole stuff is horribly incomplete, so a README.1ST with a disclaimer was
8603 added to make sure no one expects that this stuff really works in the
8604 OpenSSL 0.9.2 release. Additionally I've started to clean the XS sources
8605 up and fixed a few little bugs and inconsistencies in OpenSSL.{pm,xs} and
8607 [Ralf S. Engelschall]
8609 *) Fix the generation of two part addresses in perl.
8610 [Kenji Miyake <kenji@miyake.org>, integrated by Ben Laurie]
8612 *) Add config entry for Linux on MIPS.
8613 [John Tobey <jtobey@channel1.com>]
8615 *) Make links whenever Configure is run, unless we are on Windoze.
8618 *) Permit extensions to be added to CRLs using crl_section in openssl.cnf.
8619 Currently only issuerAltName and AuthorityKeyIdentifier make any sense
8623 *) Add a useful kludge to allow package maintainers to specify compiler and
8624 other platforms details on the command line without having to patch the
8625 Configure script everytime: One now can use ``perl Configure
8626 <id>:<details>'', i.e. platform ids are allowed to have details appended
8627 to them (seperated by colons). This is treated as there would be a static
8628 pre-configured entry in Configure's %table under key <id> with value
8629 <details> and ``perl Configure <id>'' is called. So, when you want to
8630 perform a quick test-compile under FreeBSD 3.1 with pgcc and without
8631 assembler stuff you can use ``perl Configure "FreeBSD-elf:pgcc:-O6:::"''
8632 now, which overrides the FreeBSD-elf entry on-the-fly.
8633 [Ralf S. Engelschall]
8635 *) Disable new TLS1 ciphersuites by default: they aren't official yet.
8638 *) Allow DSO flags like -fpic, -fPIC, -KPIC etc. to be specified
8639 on the `perl Configure ...' command line. This way one can compile
8640 OpenSSL libraries with Position Independent Code (PIC) which is needed
8641 for linking it into DSOs.
8642 [Ralf S. Engelschall]
8644 *) Remarkably, export ciphers were totally broken and no-one had noticed!
8648 *) Cleaned up the LICENSE document: The official contact for any license
8649 questions now is the OpenSSL core team under openssl-core@openssl.org.
8650 And add a paragraph about the dual-license situation to make sure people
8651 recognize that _BOTH_ the OpenSSL license _AND_ the SSLeay license apply
8652 to the OpenSSL toolkit.
8653 [Ralf S. Engelschall]
8655 *) General source tree makefile cleanups: Made `making xxx in yyy...'
8656 display consistent in the source tree and replaced `/bin/rm' by `rm'.
8657 Additonally cleaned up the `make links' target: Remove unnecessary
8658 semicolons, subsequent redundant removes, inline point.sh into mklink.sh
8659 to speed processing and no longer clutter the display with confusing
8660 stuff. Instead only the actually done links are displayed.
8661 [Ralf S. Engelschall]
8663 *) Permit null encryption ciphersuites, used for authentication only. It used
8664 to be necessary to set the preprocessor define SSL_ALLOW_ENULL to do this.
8665 It is now necessary to set SSL_FORBID_ENULL to prevent the use of null
8669 *) Add a bunch of fixes to the PKCS#7 stuff. It used to sometimes reorder
8670 signed attributes when verifying signatures (this would break them),
8671 the detached data encoding was wrong and public keys obtained using
8672 X509_get_pubkey() weren't freed.
8675 *) Add text documentation for the BUFFER functions. Also added a work around
8676 to a Win95 console bug. This was triggered by the password read stuff: the
8677 last character typed gets carried over to the next fread(). If you were
8678 generating a new cert request using 'req' for example then the last
8679 character of the passphrase would be CR which would then enter the first
8683 *) Added the new `Includes OpenSSL Cryptography Software' button as
8684 doc/openssl_button.{gif,html} which is similar in style to the old SSLeay
8685 button and can be used by applications based on OpenSSL to show the
8686 relationship to the OpenSSL project.
8687 [Ralf S. Engelschall]
8689 *) Remove confusing variables in function signatures in files
8690 ssl/ssl_lib.c and ssl/ssl.h.
8691 [Lennart Bong <lob@kulthea.stacken.kth.se>]
8693 *) Don't install bss_file.c under PREFIX/include/
8694 [Lennart Bong <lob@kulthea.stacken.kth.se>]
8696 *) Get the Win32 compile working again. Modify mkdef.pl so it can handle
8697 functions that return function pointers and has support for NT specific
8698 stuff. Fix mk1mf.pl and VC-32.pl to support NT differences also. Various
8699 #ifdef WIN32 and WINNTs sprinkled about the place and some changes from
8700 unsigned to signed types: this was killing the Win32 compile.
8703 *) Add new certificate file to stack functions,
8704 SSL_add_dir_cert_subjects_to_stack() and
8705 SSL_add_file_cert_subjects_to_stack(). These largely supplant
8706 SSL_load_client_CA_file(), and can be used to add multiple certs easily
8707 to a stack (usually this is then handed to SSL_CTX_set_client_CA_list()).
8708 This means that Apache-SSL and similar packages don't have to mess around
8709 to add as many CAs as they want to the preferred list.
8712 *) Experiment with doxygen documentation. Currently only partially applied to
8714 See http://www.stack.nl/~dimitri/doxygen/index.html, and run doxygen with
8715 openssl.doxy as the configuration file.
8718 *) Get rid of remaining C++-style comments which strict C compilers hate.
8719 [Ralf S. Engelschall, pointed out by Carlos Amengual]
8721 *) Changed BN_RECURSION in bn_mont.c to BN_RECURSION_MONT so it is not
8722 compiled in by default: it has problems with large keys.
8725 *) Add a bunch of SSL_xxx() functions for configuring the temporary RSA and
8726 DH private keys and/or callback functions which directly correspond to
8727 their SSL_CTX_xxx() counterparts but work on a per-connection basis. This
8728 is needed for applications which have to configure certificates on a
8729 per-connection basis (e.g. Apache+mod_ssl) instead of a per-context basis
8731 For the RSA certificate situation is makes no difference, but
8732 for the DSA certificate situation this fixes the "no shared cipher"
8733 problem where the OpenSSL cipher selection procedure failed because the
8734 temporary keys were not overtaken from the context and the API provided
8735 no way to reconfigure them.
8736 The new functions now let applications reconfigure the stuff and they
8737 are in detail: SSL_need_tmp_RSA, SSL_set_tmp_rsa, SSL_set_tmp_dh,
8738 SSL_set_tmp_rsa_callback and SSL_set_tmp_dh_callback. Additionally a new
8739 non-public-API function ssl_cert_instantiate() is used as a helper
8740 function and also to reduce code redundancy inside ssl_rsa.c.
8741 [Ralf S. Engelschall]
8743 *) Move s_server -dcert and -dkey options out of the undocumented feature
8744 area because they are useful for the DSA situation and should be
8745 recognized by the users.
8746 [Ralf S. Engelschall]
8748 *) Fix the cipher decision scheme for export ciphers: the export bits are
8749 *not* within SSL_MKEY_MASK or SSL_AUTH_MASK, they are within
8750 SSL_EXP_MASK. So, the original variable has to be used instead of the
8751 already masked variable.
8752 [Richard Levitte <levitte@stacken.kth.se>]
8754 *) Fix 'port' variable from `int' to `unsigned int' in crypto/bio/b_sock.c
8755 [Richard Levitte <levitte@stacken.kth.se>]
8757 *) Change type of another md_len variable in pk7_doit.c:PKCS7_dataFinal()
8758 from `int' to `unsigned int' because it's a length and initialized by
8759 EVP_DigestFinal() which expects an `unsigned int *'.
8760 [Richard Levitte <levitte@stacken.kth.se>]
8762 *) Don't hard-code path to Perl interpreter on shebang line of Configure
8763 script. Instead use the usual Shell->Perl transition trick.
8764 [Ralf S. Engelschall]
8766 *) Make `openssl x509 -noout -modulus' functional also for DSA certificates
8767 (in addition to RSA certificates) to match the behaviour of `openssl dsa
8768 -noout -modulus' as it's already the case for `openssl rsa -noout
8769 -modulus'. For RSA the -modulus is the real "modulus" while for DSA
8770 currently the public key is printed (a decision which was already done by
8771 `openssl dsa -modulus' in the past) which serves a similar purpose.
8772 Additionally the NO_RSA no longer completely removes the whole -modulus
8773 option; it now only avoids using the RSA stuff. Same applies to NO_DSA
8775 [Ralf S. Engelschall]
8777 *) Add Arne Ansper's reliable BIO - this is an encrypted, block-digested
8778 BIO. See the source (crypto/evp/bio_ok.c) for more info.
8779 [Arne Ansper <arne@ats.cyber.ee>]
8781 *) Dump the old yucky req code that tried (and failed) to allow raw OIDs
8782 to be added. Now both 'req' and 'ca' can use new objects defined in the
8786 *) Add cool BIO that does syslog (or event log on NT).
8787 [Arne Ansper <arne@ats.cyber.ee>, integrated by Ben Laurie]
8789 *) Add support for new TLS ciphersuites, TLS_RSA_EXPORT56_WITH_RC4_56_MD5,
8790 TLS_RSA_EXPORT56_WITH_RC2_CBC_56_MD5 and
8791 TLS_RSA_EXPORT56_WITH_DES_CBC_SHA, as specified in "56-bit Export Cipher
8792 Suites For TLS", draft-ietf-tls-56-bit-ciphersuites-00.txt.
8795 *) Add preliminary config info for new extension code.
8798 *) Make RSA_NO_PADDING really use no padding.
8799 [Ulf Moeller <ulf@fitug.de>]
8801 *) Generate errors when private/public key check is done.
8804 *) Overhaul for 'crl' utility. New function X509_CRL_print. Partial support
8805 for some CRL extensions and new objects added.
8808 *) Really fix the ASN1 IMPLICIT bug this time... Partial support for private
8809 key usage extension and fuller support for authority key id.
8812 *) Add OAEP encryption for the OpenSSL crypto library. OAEP is the improved
8813 padding method for RSA, which is recommended for new applications in PKCS
8814 #1 v2.0 (RFC 2437, October 1998).
8815 OAEP (Optimal Asymmetric Encryption Padding) has better theoretical
8816 foundations than the ad-hoc padding used in PKCS #1 v1.5. It is secure
8817 against Bleichbacher's attack on RSA.
8818 [Ulf Moeller <ulf@fitug.de>, reformatted, corrected and integrated by
8821 *) Updates to the new SSL compression code
8822 [Eric A. Young, (from changes to C2Net SSLeay, integrated by Mark Cox)]
8824 *) Fix so that the version number in the master secret, when passed
8825 via RSA, checks that if TLS was proposed, but we roll back to SSLv3
8826 (because the server will not accept higher), that the version number
8827 is 0x03,0x01, not 0x03,0x00
8828 [Eric A. Young, (from changes to C2Net SSLeay, integrated by Mark Cox)]
8830 *) Run extensive memory leak checks on SSL apps. Fixed *lots* of memory
8831 leaks in ssl/ relating to new X509_get_pubkey() behaviour. Also fixes
8832 in apps/ and an unrelated leak in crypto/dsa/dsa_vrf.c
8835 *) Support for RAW extensions where an arbitrary extension can be
8836 created by including its DER encoding. See apps/openssl.cnf for
8840 *) Make sure latest Perl versions don't interpret some generated C array
8841 code as Perl array code in the crypto/err/err_genc.pl script.
8842 [Lars Weber <3weber@informatik.uni-hamburg.de>]
8844 *) Modify ms/do_ms.bat to not generate assembly language makefiles since
8845 not many people have the assembler. Various Win32 compilation fixes and
8846 update to the INSTALL.W32 file with (hopefully) more accurate Win32
8850 *) Modify configure script 'Configure' to automatically create crypto/date.h
8851 file under Win32 and also build pem.h from pem.org. New script
8852 util/mkfiles.pl to create the MINFO file on environments that can't do a
8853 'make files': perl util/mkfiles.pl >MINFO should work.
8856 *) Major rework of DES function declarations, in the pursuit of correctness
8857 and purity. As a result, many evil casts evaporated, and some weirdness,
8858 too. You may find this causes warnings in your code. Zapping your evil
8859 casts will probably fix them. Mostly.
8862 *) Fix for a typo in asn1.h. Bug fix to object creation script
8863 obj_dat.pl. It considered a zero in an object definition to mean
8864 "end of object": none of the objects in objects.h have any zeros
8865 so it wasn't spotted.
8866 [Steve Henson, reported by Erwann ABALEA <eabalea@certplus.com>]
8868 *) Add support for Triple DES Cipher Block Chaining with Output Feedback
8869 Masking (CBCM). In the absence of test vectors, the best I have been able
8870 to do is check that the decrypt undoes the encrypt, so far. Send me test
8871 vectors if you have them.
8874 *) Correct calculation of key length for export ciphers (too much space was
8875 allocated for null ciphers). This has not been tested!
8878 *) Modifications to the mkdef.pl for Win32 DEF file creation. The usage
8879 message is now correct (it understands "crypto" and "ssl" on its
8880 command line). There is also now an "update" option. This will update
8881 the util/ssleay.num and util/libeay.num files with any new functions.
8883 perl util/mkdef.pl crypto ssl update
8884 it will update them.
8887 *) Overhauled the Perl interface (perl/*):
8888 - ported BN stuff to OpenSSL's different BN library
8889 - made the perl/ source tree CVS-aware
8890 - renamed the package from SSLeay to OpenSSL (the files still contain
8891 their history because I've copied them in the repository)
8892 - removed obsolete files (the test scripts will be replaced
8893 by better Test::Harness variants in the future)
8894 [Ralf S. Engelschall]
8896 *) First cut for a very conservative source tree cleanup:
8897 1. merge various obsolete readme texts into doc/ssleay.txt
8898 where we collect the old documents and readme texts.
8899 2. remove the first part of files where I'm already sure that we no
8900 longer need them because of three reasons: either they are just temporary
8901 files which were left by Eric or they are preserved original files where
8902 I've verified that the diff is also available in the CVS via "cvs diff
8903 -rSSLeay_0_8_1b" or they were renamed (as it was definitely the case for
8904 the crypto/md/ stuff).
8905 [Ralf S. Engelschall]
8907 *) More extension code. Incomplete support for subject and issuer alt
8908 name, issuer and authority key id. Change the i2v function parameters
8909 and add an extra 'crl' parameter in the X509V3_CTX structure: guess
8910 what that's for :-) Fix to ASN1 macro which messed up
8911 IMPLICIT tag and add f_enum.c which adds a2i, i2a for ENUMERATED.
8914 *) Preliminary support for ENUMERATED type. This is largely copied from the
8918 *) Add new function, EVP_MD_CTX_copy() to replace frequent use of memcpy.
8919 [Eric A. Young, (from changes to C2Net SSLeay, integrated by Mark Cox)]
8921 *) Make sure `make rehash' target really finds the `openssl' program.
8922 [Ralf S. Engelschall, Matthias Loepfe <Matthias.Loepfe@adnovum.ch>]
8924 *) Squeeze another 7% of speed out of MD5 assembler, at least on a P2. I'd
8925 like to hear about it if this slows down other processors.
8928 *) Add CygWin32 platform information to Configure script.
8929 [Alan Batie <batie@aahz.jf.intel.com>]
8931 *) Fixed ms/32all.bat script: `no_asm' -> `no-asm'
8932 [Rainer W. Gerling <gerling@mpg-gv.mpg.de>]
8934 *) New program nseq to manipulate netscape certificate sequences
8937 *) Modify crl2pkcs7 so it supports multiple -certfile arguments. Fix a
8941 *) Fixes to BN code. Previously the default was to define BN_RECURSION
8942 but the BN code had some problems that would cause failures when
8943 doing certificate verification and some other functions.
8944 [Eric A. Young, (from changes to C2Net SSLeay, integrated by Mark Cox)]
8946 *) Add ASN1 and PEM code to support netscape certificate sequences.
8949 *) Add ASN1 and PEM code to support netscape certificate sequences.
8952 *) Add several PKIX and private extended key usage OIDs.
8955 *) Modify the 'ca' program to handle the new extension code. Modify
8956 openssl.cnf for new extension format, add comments.
8959 *) More X509 V3 changes. Fix typo in v3_bitstr.c. Add support to 'req'
8960 and add a sample to openssl.cnf so req -x509 now adds appropriate
8964 *) Continued X509 V3 changes. Add to other makefiles, integrate with the
8965 error code, add initial support to X509_print() and x509 application.
8968 *) Takes a deep breath and start addding X509 V3 extension support code. Add
8969 files in crypto/x509v3. Move original stuff to crypto/x509v3/old. All this
8970 stuff is currently isolated and isn't even compiled yet.
8973 *) Continuing patches for GeneralizedTime. Fix up certificate and CRL
8974 ASN1 to use ASN1_TIME and modify print routines to use ASN1_TIME_print.
8975 Removed the versions check from X509 routines when loading extensions:
8976 this allows certain broken certificates that don't set the version
8977 properly to be processed.
8980 *) Deal with irritating shit to do with dependencies, in YAAHW (Yet Another
8981 Ad Hoc Way) - Makefile.ssls now all contain local dependencies, which
8982 can still be regenerated with "make depend".
8985 *) Spelling mistake in C version of CAST-128.
8986 [Ben Laurie, reported by Jeremy Hylton <jeremy@cnri.reston.va.us>]
8988 *) Changes to the error generation code. The perl script err-code.pl
8989 now reads in the old error codes and retains the old numbers, only
8990 adding new ones if necessary. It also only changes the .err files if new
8991 codes are added. The makefiles have been modified to only insert errors
8992 when needed (to avoid needlessly modifying header files). This is done
8993 by only inserting errors if the .err file is newer than the auto generated
8994 C file. To rebuild all the error codes from scratch (the old behaviour)
8995 either modify crypto/Makefile.ssl to pass the -regen flag to err_code.pl
8996 or delete all the .err files.
8999 *) CAST-128 was incorrectly implemented for short keys. The C version has
9000 been fixed, but is untested. The assembler versions are also fixed, but
9001 new assembler HAS NOT BEEN GENERATED FOR WIN32 - the Makefile needs fixing
9002 to regenerate it if needed.
9003 [Ben Laurie, reported (with fix for C version) by Jun-ichiro itojun
9004 Hagino <itojun@kame.net>]
9006 *) File was opened incorrectly in randfile.c.
9007 [Ulf Möller <ulf@fitug.de>]
9009 *) Beginning of support for GeneralizedTime. d2i, i2d, check and print
9010 functions. Also ASN1_TIME suite which is a CHOICE of UTCTime or
9011 GeneralizedTime. ASN1_TIME is the proper type used in certificates et
9012 al: it's just almost always a UTCTime. Note this patch adds new error
9013 codes so do a "make errors" if there are problems.
9016 *) Correct Linux 1 recognition in config.
9017 [Ulf Möller <ulf@fitug.de>]
9019 *) Remove pointless MD5 hash when using DSA keys in ca.
9020 [Anonymous <nobody@replay.com>]
9022 *) Generate an error if given an empty string as a cert directory. Also
9023 generate an error if handed NULL (previously returned 0 to indicate an
9024 error, but didn't set one).
9025 [Ben Laurie, reported by Anonymous <nobody@replay.com>]
9027 *) Add prototypes to SSL methods. Make SSL_write's buffer const, at last.
9030 *) Fix the dummy function BN_ref_mod_exp() in rsaref.c to have the correct
9031 parameters. This was causing a warning which killed off the Win32 compile.
9034 *) Remove C++ style comments from crypto/bn/bn_local.h.
9035 [Neil Costigan <neil.costigan@celocom.com>]
9037 *) The function OBJ_txt2nid was broken. It was supposed to return a nid
9038 based on a text string, looking up short and long names and finally
9039 "dot" format. The "dot" format stuff didn't work. Added new function
9040 OBJ_txt2obj to do the same but return an ASN1_OBJECT and rewrote
9041 OBJ_txt2nid to use it. OBJ_txt2obj can also return objects even if the
9042 OID is not part of the table.
9045 *) Add prototypes to X509 lookup/verify methods, fixing a bug in
9046 X509_LOOKUP_by_alias().
9049 *) Sort openssl functions by name.
9052 *) Get the gendsa program working (hopefully) and add it to app list. Remove
9053 encryption from sample DSA keys (in case anyone is interested the password
9057 *) Make _all_ *_free functions accept a NULL pointer.
9058 [Frans Heymans <fheymans@isaserver.be>]
9060 *) If a DH key is generated in s3_srvr.c, don't blow it by trying to use
9062 [Anonymous <nobody@replay.com>]
9064 *) s_server should send the CAfile as acceptable CAs, not its own cert.
9065 [Bodo Moeller <3moeller@informatik.uni-hamburg.de>]
9067 *) Don't blow it for numeric -newkey arguments to apps/req.
9068 [Bodo Moeller <3moeller@informatik.uni-hamburg.de>]
9070 *) Temp key "for export" tests were wrong in s3_srvr.c.
9071 [Anonymous <nobody@replay.com>]
9073 *) Add prototype for temp key callback functions
9074 SSL_CTX_set_tmp_{rsa,dh}_callback().
9077 *) Make DH_free() tolerate being passed a NULL pointer (like RSA_free() and
9078 DSA_free()). Make X509_PUBKEY_set() check for errors in d2i_PublicKey().
9081 *) X509_name_add_entry() freed the wrong thing after an error.
9082 [Arne Ansper <arne@ats.cyber.ee>]
9084 *) rsa_eay.c would attempt to free a NULL context.
9085 [Arne Ansper <arne@ats.cyber.ee>]
9087 *) BIO_s_socket() had a broken should_retry() on Windoze.
9088 [Arne Ansper <arne@ats.cyber.ee>]
9090 *) BIO_f_buffer() didn't pass on BIO_CTRL_FLUSH.
9091 [Arne Ansper <arne@ats.cyber.ee>]
9093 *) Make sure the already existing X509_STORE->depth variable is initialized
9094 in X509_STORE_new(), but document the fact that this variable is still
9095 unused in the certificate verification process.
9096 [Ralf S. Engelschall]
9098 *) Fix the various library and apps files to free up pkeys obtained from
9099 X509_PUBKEY_get() et al. Also allow x509.c to handle netscape extensions.
9102 *) Fix reference counting in X509_PUBKEY_get(). This makes
9103 demos/maurice/example2.c work, amongst others, probably.
9104 [Steve Henson and Ben Laurie]
9106 *) First cut of a cleanup for apps/. First the `ssleay' program is now named
9107 `openssl' and second, the shortcut symlinks for the `openssl <command>'
9108 are no longer created. This way we have a single and consistent command
9109 line interface `openssl <command>', similar to `cvs <command>'.
9110 [Ralf S. Engelschall, Paul Sutton and Ben Laurie]
9112 *) ca.c: move test for DSA keys inside #ifndef NO_DSA. Make pubkey
9113 BIT STRING wrapper always have zero unused bits.
9116 *) Add CA.pl, perl version of CA.sh, add extended key usage OID.
9119 *) Make the top-level INSTALL documentation easier to understand.
9122 *) Makefiles updated to exit if an error occurs in a sub-directory
9123 make (including if user presses ^C) [Paul Sutton]
9125 *) Make Montgomery context stuff explicit in RSA data structure.
9128 *) Fix build order of pem and err to allow for generated pem.h.
9131 *) Fix renumbering bug in X509_NAME_delete_entry().
9134 *) Enhanced the err-ins.pl script so it makes the error library number
9135 global and can add a library name. This is needed for external ASN1 and
9136 other error libraries.
9139 *) Fixed sk_insert which never worked properly.
9142 *) Fix ASN1 macros so they can handle indefinite length construted
9143 EXPLICIT tags. Some non standard certificates use these: they can now
9147 *) Merged the various old/obsolete SSLeay documentation files (doc/xxx.doc)
9148 into a single doc/ssleay.txt bundle. This way the information is still
9149 preserved but no longer messes up this directory. Now it's new room for
9150 the new set of documenation files.
9151 [Ralf S. Engelschall]
9153 *) SETs were incorrectly DER encoded. This was a major pain, because they
9154 shared code with SEQUENCEs, which aren't coded the same. This means that
9155 almost everything to do with SETs or SEQUENCEs has either changed name or
9156 number of arguments.
9157 [Ben Laurie, based on a partial fix by GP Jayan <gp@nsj.co.jp>]
9159 *) Fix test data to work with the above.
9162 *) Fix the RSA header declarations that hid a bug I fixed in 0.9.0b but
9163 was already fixed by Eric for 0.9.1 it seems.
9164 [Ben Laurie - pointed out by Ulf Möller <ulf@fitug.de>]
9166 *) Autodetect FreeBSD3.
9169 *) Fix various bugs in Configure. This affects the following platforms:
9173 unixware-2.0-pentium
9177 *) Eliminate generated files from CVS. Reorder tests to regenerate files
9178 before they are needed.
9181 *) Generate Makefile.ssl from Makefile.org (to keep CVS happy).
9185 Changes between 0.9.1b and 0.9.1c [23-Dec-1998]
9187 *) Added OPENSSL_VERSION_NUMBER to crypto/crypto.h and
9188 changed SSLeay to OpenSSL in version strings.
9189 [Ralf S. Engelschall]
9191 *) Some fixups to the top-level documents.
9194 *) Fixed the nasty bug where rsaref.h was not found under compile-time
9195 because the symlink to include/ was missing.
9196 [Ralf S. Engelschall]
9198 *) Incorporated the popular no-RSA/DSA-only patches
9199 which allow to compile a RSA-free SSLeay.
9200 [Andrew Cooke / Interrader Ldt., Ralf S. Engelschall]
9202 *) Fixed nasty rehash problem under `make -f Makefile.ssl links'
9203 when "ssleay" is still not found.
9204 [Ralf S. Engelschall]
9206 *) Added more platforms to Configure: Cray T3E, HPUX 11,
9207 [Ralf S. Engelschall, Beckmann <beckman@acl.lanl.gov>]
9209 *) Updated the README file.
9210 [Ralf S. Engelschall]
9212 *) Added various .cvsignore files in the CVS repository subdirs
9213 to make a "cvs update" really silent.
9214 [Ralf S. Engelschall]
9216 *) Recompiled the error-definition header files and added
9217 missing symbols to the Win32 linker tables.
9218 [Ralf S. Engelschall]
9220 *) Cleaned up the top-level documents;
9221 o new files: CHANGES and LICENSE
9222 o merged VERSION, HISTORY* and README* files a CHANGES.SSLeay
9223 o merged COPYRIGHT into LICENSE
9224 o removed obsolete TODO file
9225 o renamed MICROSOFT to INSTALL.W32
9226 [Ralf S. Engelschall]
9228 *) Removed dummy files from the 0.9.1b source tree:
9229 crypto/asn1/x crypto/bio/cd crypto/bio/fg crypto/bio/grep crypto/bio/vi
9230 crypto/bn/asm/......add.c crypto/bn/asm/a.out crypto/dsa/f crypto/md5/f
9231 crypto/pem/gmon.out crypto/perlasm/f crypto/pkcs7/build crypto/rsa/f
9232 crypto/sha/asm/f crypto/threads/f ms/zzz ssl/f ssl/f.mak test/f
9233 util/f.mak util/pl/f util/pl/f.mak crypto/bf/bf_locl.old apps/f
9234 [Ralf S. Engelschall]
9236 *) Added various platform portability fixes.
9239 *) The Genesis of the OpenSSL rpject:
9240 We start with the latest (unreleased) SSLeay version 0.9.1b which Eric A.
9241 Young and Tim J. Hudson created while they were working for C2Net until
9243 [The OpenSSL Project]
9246 Changes between 0.9.0b and 0.9.1b [not released]
9248 *) Updated a few CA certificates under certs/
9251 *) Changed some BIGNUM api stuff.
9254 *) Various platform ports: OpenBSD, Ultrix, IRIX 64bit, NetBSD,
9255 DGUX x86, Linux Alpha, etc.
9258 *) New COMP library [crypto/comp/] for SSL Record Layer Compression:
9259 RLE (dummy implemented) and ZLIB (really implemented when ZLIB is
9263 *) Add -strparse option to asn1pars program which parses nested
9265 [Dr Stephen Henson <shenson@bigfoot.com>]
9267 *) Added "oid_file" to ssleay.cnf for "ca" and "req" programs.
9270 *) DSA fix for "ca" program.
9273 *) Added "-genkey" option to "dsaparam" program.
9276 *) Added RIPE MD160 (rmd160) message digest.
9279 *) Added -a (all) option to "ssleay version" command.
9282 *) Added PLATFORM define which is the id given to Configure.
9285 *) Added MemCheck_XXXX functions to crypto/mem.c for memory checking.
9288 *) Extended the ASN.1 parser routines.
9291 *) Extended BIO routines to support REUSEADDR, seek, tell, etc.
9294 *) Added a BN_CTX to the BN library.
9297 *) Fixed the weak key values in DES library
9300 *) Changed API in EVP library for cipher aliases.
9303 *) Added support for RC2/64bit cipher.
9306 *) Converted the lhash library to the crypto/mem.c functions.
9309 *) Added more recognized ASN.1 object ids.
9312 *) Added more RSA padding checks for SSL/TLS.
9315 *) Added BIO proxy/filter functionality.
9318 *) Added extra_certs to SSL_CTX which can be used
9319 send extra CA certificates to the client in the CA cert chain sending
9320 process. It can be configured with SSL_CTX_add_extra_chain_cert().
9323 *) Now Fortezza is denied in the authentication phase because
9324 this is key exchange mechanism is not supported by SSLeay at all.
9327 *) Additional PKCS1 checks.
9330 *) Support the string "TLSv1" for all TLS v1 ciphers.
9333 *) Added function SSL_get_ex_data_X509_STORE_CTX_idx() which gives the
9334 ex_data index of the SSL context in the X509_STORE_CTX ex_data.
9337 *) Fixed a few memory leaks.
9340 *) Fixed various code and comment typos.
9343 *) A minor bug in ssl/s3_clnt.c where there would always be 4 0
9344 bytes sent in the client random.
9345 [Edward Bishop <ebishop@spyglass.com>]
projects / thirdparty / openssl.git / blob