5 Changes between 0.9.8k and 1.0 [xx XXX xxxx]
7 *) Rename uni2asc and asc2uni functions to OPENSSL_uni2asc and
8 OPENSSL_asc2uni the original names were too generic and cause name
10 [Guenter <lists@gknw.net>]
12 *) Add ECDHE and PSK support to DTLS.
13 [Michael Tuexen <tuexen@fh-muenster.de>]
15 *) Add CHECKED_STACK_OF macro to safestack.h, otherwise safestack can't
19 *) Add "missing" function EVP_MD_flags() (without this the only way to
20 retrieve a digest flags is by accessing the structure directly. Update
21 EVP_MD_do_all*() and EVP_CIPHER_do_all*() to include the name a digest
22 or cipher is registered as in the "from" argument. Print out all
23 registered digests in the dgst usage message instead of manually
24 attempting to work them out.
27 *) If no SSLv2 ciphers are used don't use an SSLv2 compatible client hello:
28 this allows the use of compression and extensions. Change default cipher
29 string to remove SSLv2 ciphersuites. This effectively avoids ancient SSLv2
30 by default unless an application cipher string requests it.
33 *) Alter match criteria in PKCS12_parse(). It used to try to use local
34 key ids to find matching certificates and keys but some PKCS#12 files
35 don't follow the (somewhat unwritten) rules and this strategy fails.
36 Now just gather all certificates together and the first private key
37 then look for the first certificate that matches the key.
40 *) Support use of registered digest and cipher names for dgst and cipher
41 commands instead of having to add each one as a special case. So now
48 openssl dgst -sha256 foo
50 and this works for ENGINE based algorithms too.
54 *) Update Gost ENGINE to support parameter files.
55 [Victor B. Wagner <vitus@cryptocom.ru>]
57 *) Support GeneralizedTime in ca utility.
58 [Oliver Martin <oliver@volatilevoid.net>, Steve Henson]
60 *) Enhance the hash format used for certificate directory links. The new
61 form uses the canonical encoding (meaning equivalent names will work
62 even if they aren't identical) and uses SHA1 instead of MD5. This form
63 is incompatible with the older format and as a result c_rehash should
64 be used to rebuild symbolic links.
67 *) Make PKCS#8 the default write format for private keys, replacing the
68 traditional format. This form is standardised, more secure and doesn't
69 include an implicit MD5 dependency.
72 *) Add a $gcc_devteam_warn option to Configure. The idea is that any code
73 committed to OpenSSL should pass this lot as a minimum.
76 *) Add session ticket override functionality for use by EAP-FAST.
77 [Jouni Malinen <j@w1.fi>]
79 *) Modify HMAC functions to return a value. Since these can be implemented
80 in an ENGINE errors can occur.
83 *) Type-checked OBJ_bsearch_ex.
86 *) Type-checked OBJ_bsearch. Also some constification necessitated
87 by type-checking. Still to come: TXT_DB, bsearch(?),
88 OBJ_bsearch_ex, qsort, CRYPTO_EX_DATA, ASN1_VALUE, ASN1_STRING,
92 *) New function OPENSSL_gmtime_adj() to add a specific number of days and
93 seconds to a tm structure directly, instead of going through OS
94 specific date routines. This avoids any issues with OS routines such
95 as the year 2038 bug. New *_adj() functions for ASN1 time structures
96 and X509_time_adj_ex() to cover the extended range. The existing
97 X509_time_adj() is still usable and will no longer have any date issues.
100 *) Delta CRL support. New use deltas option which will attempt to locate
101 and search any appropriate delta CRLs available.
103 This work was sponsored by Google.
106 *) Support for CRLs partitioned by reason code. Reorganise CRL processing
107 code and add additional score elements. Validate alternate CRL paths
108 as part of the CRL checking and indicate a new error "CRL path validation
109 error" in this case. Applications wanting additional details can use
110 the verify callback and check the new "parent" field. If this is not
111 NULL CRL path validation is taking place. Existing applications wont
112 see this because it requires extended CRL support which is off by
115 This work was sponsored by Google.
118 *) Support for freshest CRL extension.
120 This work was sponsored by Google.
123 *) Initial indirect CRL support. Currently only supported in the CRLs
124 passed directly and not via lookup. Process certificate issuer
125 CRL entry extension and lookup CRL entries by bother issuer name
126 and serial number. Check and process CRL issuer entry in IDP extension.
128 This work was sponsored by Google.
131 *) Add support for distinct certificate and CRL paths. The CRL issuer
132 certificate is validated separately in this case. Only enabled if
133 an extended CRL support flag is set: this flag will enable additional
134 CRL functionality in future.
136 This work was sponsored by Google.
139 *) Add support for policy mappings extension.
141 This work was sponsored by Google.
144 *) Fixes to pathlength constraint, self issued certificate handling,
145 policy processing to align with RFC3280 and PKITS tests.
147 This work was sponsored by Google.
150 *) Support for name constraints certificate extension. DN, email, DNS
151 and URI types are currently supported.
153 This work was sponsored by Google.
156 *) To cater for systems that provide a pointer-based thread ID rather
157 than numeric, deprecate the current numeric thread ID mechanism and
158 replace it with a structure and associated callback type. This
159 mechanism allows a numeric "hash" to be extracted from a thread ID in
160 either case, and on platforms where pointers are larger than 'long',
161 mixing is done to help ensure the numeric 'hash' is usable even if it
162 can't be guaranteed unique. The default mechanism is to use "&errno"
163 as a pointer-based thread ID to distinguish between threads.
165 Applications that want to provide their own thread IDs should now use
166 CRYPTO_THREADID_set_callback() to register a callback that will call
167 either CRYPTO_THREADID_set_numeric() or CRYPTO_THREADID_set_pointer().
169 Note that ERR_remove_state() is now deprecated, because it is tied
170 to the assumption that thread IDs are numeric. ERR_remove_state(0)
171 to free the current thread's error state should be replaced by
172 ERR_remove_thread_state(NULL).
174 (This new approach replaces the functions CRYPTO_set_idptr_callback(),
175 CRYPTO_get_idptr_callback(), and CRYPTO_thread_idptr() that existed in
176 OpenSSL 0.9.9-dev between June 2006 and August 2008. Also, if an
177 application was previously providing a numeric thread callback that
178 was inappropriate for distinguishing threads, then uniqueness might
179 have been obtained with &errno that happened immediately in the
180 intermediate development versions of OpenSSL; this is no longer the
181 case, the numeric thread callback will now override the automatic use
183 [Geoff Thorpe, with help from Bodo Moeller]
185 *) Initial support for different CRL issuing certificates. This covers a
186 simple case where the self issued certificates in the chain exist and
187 the real CRL issuer is higher in the existing chain.
189 This work was sponsored by Google.
192 *) Removed effectively defunct crypto/store from the build.
195 *) Revamp of STACK to provide stronger type-checking. Still to come:
196 TXT_DB, bsearch(?), OBJ_bsearch, qsort, CRYPTO_EX_DATA, ASN1_VALUE,
197 ASN1_STRING, CONF_VALUE.
200 *) Add a new SSL_MODE_RELEASE_BUFFERS mode flag to release unused buffer
201 RAM on SSL connections. This option can save about 34k per idle SSL.
204 *) Revamp of LHASH to provide stronger type-checking. Still to come:
205 STACK, TXT_DB, bsearch, qsort.
208 *) Initial support for Cryptographic Message Syntax (aka CMS) based
209 on RFC3850, RFC3851 and RFC3852. New cms directory and cms utility,
210 support for data, signedData, compressedData, digestedData and
211 encryptedData, envelopedData types included. Scripts to check against
212 RFC4134 examples draft and interop and consistency checks of many
213 content types and variants.
216 *) Add options to enc utility to support use of zlib compression BIO.
219 *) Extend mk1mf to support importing of options and assembly language
220 files from Configure script, currently only included in VC-WIN32.
221 The assembly language rules can now optionally generate the source
222 files from the associated perl scripts.
225 *) Implement remaining functionality needed to support GOST ciphersuites.
226 Interop testing has been performed using CryptoPro implementations.
227 [Victor B. Wagner <vitus@cryptocom.ru>]
229 *) s390x assembler pack.
232 *) ARMv4 assembler pack. ARMv4 refers to v4 and later ISA, not CPU
236 *) Implement Opaque PRF Input TLS extension as specified in
237 draft-rescorla-tls-opaque-prf-input-00.txt. Since this is not an
238 official specification yet and no extension type assignment by
239 IANA exists, this extension (for now) will have to be explicitly
240 enabled when building OpenSSL by providing the extension number
241 to use. For example, specify an option
243 -DTLSEXT_TYPE_opaque_prf_input=0x9527
245 to the "config" or "Configure" script to enable the extension,
246 assuming extension number 0x9527 (which is a completely arbitrary
247 and unofficial assignment based on the MD5 hash of the Internet
248 Draft). Note that by doing so, you potentially lose
249 interoperability with other TLS implementations since these might
250 be using the same extension number for other purposes.
252 SSL_set_tlsext_opaque_prf_input(ssl, src, len) is used to set the
253 opaque PRF input value to use in the handshake. This will create
254 an interal copy of the length-'len' string at 'src', and will
255 return non-zero for success.
257 To get more control and flexibility, provide a callback function
260 SSL_CTX_set_tlsext_opaque_prf_input_callback(ctx, cb)
261 SSL_CTX_set_tlsext_opaque_prf_input_callback_arg(ctx, arg)
265 int (*cb)(SSL *, void *peerinput, size_t len, void *arg);
268 Callback function 'cb' will be called in handshakes, and is
269 expected to use SSL_set_tlsext_opaque_prf_input() as appropriate.
270 Argument 'arg' is for application purposes (the value as given to
271 SSL_CTX_set_tlsext_opaque_prf_input_callback_arg() will directly
272 be provided to the callback function). The callback function
273 has to return non-zero to report success: usually 1 to use opaque
274 PRF input just if possible, or 2 to enforce use of the opaque PRF
275 input. In the latter case, the library will abort the handshake
276 if opaque PRF input is not successfully negotiated.
278 Arguments 'peerinput' and 'len' given to the callback function
279 will always be NULL and 0 in the case of a client. A server will
280 see the client's opaque PRF input through these variables if
281 available (NULL and 0 otherwise). Note that if the server
282 provides an opaque PRF input, the length must be the same as the
283 length of the client's opaque PRF input.
285 Note that the callback function will only be called when creating
286 a new session (session resumption can resume whatever was
287 previously negotiated), and will not be called in SSL 2.0
288 handshakes; thus, SSL_CTX_set_options(ctx, SSL_OP_NO_SSLv2) or
289 SSL_set_options(ssl, SSL_OP_NO_SSLv2) is especially recommended
290 for applications that need to enforce opaque PRF input.
294 *) Update ssl code to support digests other than SHA1+MD5 for handshake
297 [Victor B. Wagner <vitus@cryptocom.ru>]
299 *) Add RFC4507 support to OpenSSL. This includes the corrections in
300 RFC4507bis. The encrypted ticket format is an encrypted encoded
301 SSL_SESSION structure, that way new session features are automatically
304 If a client application caches session in an SSL_SESSION structure
305 support is transparent because tickets are now stored in the encoded
308 The SSL_CTX structure automatically generates keys for ticket
309 protection in servers so again support should be possible
310 with no application modification.
312 If a client or server wishes to disable RFC4507 support then the option
313 SSL_OP_NO_TICKET can be set.
315 Add a TLS extension debugging callback to allow the contents of any client
316 or server extensions to be examined.
318 This work was sponsored by Google.
321 *) Final changes to avoid use of pointer pointer casts in OpenSSL.
322 OpenSSL should now compile cleanly on gcc 4.2
323 [Peter Hartley <pdh@utter.chaos.org.uk>, Steve Henson]
325 *) Update SSL library to use new EVP_PKEY MAC API. Include generic MAC
326 support including streaming MAC support: this is required for GOST
328 [Victor B. Wagner <vitus@cryptocom.ru>, Steve Henson]
330 *) Add option -stream to use PKCS#7 streaming in smime utility. New
331 function i2d_PKCS7_bio_stream() and PEM_write_PKCS7_bio_stream()
332 to output in BER and PEM format.
335 *) Experimental support for use of HMAC via EVP_PKEY interface. This
336 allows HMAC to be handled via the EVP_DigestSign*() interface. The
337 EVP_PKEY "key" in this case is the HMAC key, potentially allowing
338 ENGINE support for HMAC keys which are unextractable. New -mac and
339 -macopt options to dgst utility.
342 *) New option -sigopt to dgst utility. Update dgst to use
343 EVP_Digest{Sign,Verify}*. These two changes make it possible to use
344 alternative signing paramaters such as X9.31 or PSS in the dgst
348 *) Change ssl_cipher_apply_rule(), the internal function that does
349 the work each time a ciphersuite string requests enabling
350 ("foo+bar"), moving ("+foo+bar"), disabling ("-foo+bar", or
351 removing ("!foo+bar") a class of ciphersuites: Now it maintains
352 the order of disabled ciphersuites such that those ciphersuites
353 that most recently went from enabled to disabled not only stay
354 in order with respect to each other, but also have higher priority
355 than other disabled ciphersuites the next time ciphersuites are
358 This means that you can now say, e.g., "PSK:-PSK:HIGH" to enable
359 the same ciphersuites as with "HIGH" alone, but in a specific
360 order where the PSK ciphersuites come first (since they are the
361 most recently disabled ciphersuites when "HIGH" is parsed).
363 Also, change ssl_create_cipher_list() (using this new
364 funcionality) such that between otherwise identical
365 cihpersuites, ephemeral ECDH is preferred over ephemeral DH in
369 *) Change ssl_create_cipher_list() so that it automatically
370 arranges the ciphersuites in reasonable order before starting
371 to process the rule string. Thus, the definition for "DEFAULT"
372 (SSL_DEFAULT_CIPHER_LIST) now is just "ALL:!aNULL:!eNULL", but
373 remains equivalent to "AES:ALL:!aNULL:!eNULL:+aECDH:+kRSA:+RC4:@STRENGTH".
374 This makes it much easier to arrive at a reasonable default order
375 in applications for which anonymous ciphers are OK (meaning
376 that you can't actually use DEFAULT).
377 [Bodo Moeller; suggested by Victor Duchovni]
379 *) Split the SSL/TLS algorithm mask (as used for ciphersuite string
380 processing) into multiple integers instead of setting
381 "SSL_MKEY_MASK" bits, "SSL_AUTH_MASK" bits, "SSL_ENC_MASK",
382 "SSL_MAC_MASK", and "SSL_SSL_MASK" bits all in a single integer.
383 (These masks as well as the individual bit definitions are hidden
384 away into the non-exported interface ssl/ssl_locl.h, so this
385 change to the definition of the SSL_CIPHER structure shouldn't
386 affect applications.) This give us more bits for each of these
387 categories, so there is no longer a need to coagulate AES128 and
388 AES256 into a single algorithm bit, and to coagulate Camellia128
389 and Camellia256 into a single algorithm bit, which has led to all
392 Thus, among other things, the kludge introduced in 0.9.7m and
393 0.9.8e for masking out AES256 independently of AES128 or masking
394 out Camellia256 independently of AES256 is not needed here in 0.9.9.
396 With the change, we also introduce new ciphersuite aliases that
397 so far were missing: "AES128", "AES256", "CAMELLIA128", and
401 *) Add support for dsa-with-SHA224 and dsa-with-SHA256.
402 Use the leftmost N bytes of the signature input if the input is
403 larger than the prime q (with N being the size in bytes of q).
406 *) Very *very* experimental PKCS#7 streaming encoder support. Nothing uses
407 it yet and it is largely untested.
410 *) Add support for the ecdsa-with-SHA224/256/384/512 signature types.
413 *) Initial incomplete changes to avoid need for function casts in OpenSSL
414 some compilers (gcc 4.2 and later) reject their use. Safestack is
415 reimplemented. Update ASN1 to avoid use of legacy functions.
418 *) Win32/64 targets are linked with Winsock2.
421 *) Add an X509_CRL_METHOD structure to allow CRL processing to be redirected
422 to external functions. This can be used to increase CRL handling
423 efficiency especially when CRLs are very large by (for example) storing
424 the CRL revoked certificates in a database.
427 *) Overhaul of by_dir code. Add support for dynamic loading of CRLs so
428 new CRLs added to a directory can be used. New command line option
429 -verify_return_error to s_client and s_server. This causes real errors
430 to be returned by the verify callback instead of carrying on no matter
431 what. This reflects the way a "real world" verify callback would behave.
434 *) GOST engine, supporting several GOST algorithms and public key formats.
435 Kindly donated by Cryptocom.
438 *) Partial support for Issuing Distribution Point CRL extension. CRLs
439 partitioned by DP are handled but no indirect CRL or reason partitioning
440 (yet). Complete overhaul of CRL handling: now the most suitable CRL is
441 selected via a scoring technique which handles IDP and AKID in CRLs.
444 *) New X509_STORE_CTX callbacks lookup_crls() and lookup_certs() which
445 will ultimately be used for all verify operations: this will remove the
446 X509_STORE dependency on certificate verification and allow alternative
447 lookup methods. X509_STORE based implementations of these two callbacks.
450 *) Allow multiple CRLs to exist in an X509_STORE with matching issuer names.
451 Modify get_crl() to find a valid (unexpired) CRL if possible.
454 *) New function X509_CRL_match() to check if two CRLs are identical. Normally
455 this would be called X509_CRL_cmp() but that name is already used by
456 a function that just compares CRL issuer names. Cache several CRL
457 extensions in X509_CRL structure and cache CRLDP in X509.
460 *) Store a "canonical" representation of X509_NAME structure (ASN1 Name)
461 this maps equivalent X509_NAME structures into a consistent structure.
462 Name comparison can then be performed rapidly using memcmp().
465 *) Non-blocking OCSP request processing. Add -timeout option to ocsp
469 *) Allow digests to supply their own micalg string for S/MIME type using
470 the ctrl EVP_MD_CTRL_MICALG.
473 *) During PKCS7 signing pass the PKCS7 SignerInfo structure to the
474 EVP_PKEY_METHOD before and after signing via the EVP_PKEY_CTRL_PKCS7_SIGN
475 ctrl. It can then customise the structure before and/or after signing
479 *) New function OBJ_add_sigid() to allow application defined signature OIDs
480 to be added to OpenSSLs internal tables. New function OBJ_sigid_free()
481 to free up any added signature OIDs.
484 *) New functions EVP_CIPHER_do_all(), EVP_CIPHER_do_all_sorted(),
485 EVP_MD_do_all() and EVP_MD_do_all_sorted() to enumerate internal
486 digest and cipher tables. New options added to openssl utility:
487 list-message-digest-algorithms and list-cipher-algorithms.
490 *) Change the array representation of binary polynomials: the list
491 of degrees of non-zero coefficients is now terminated with -1.
492 Previously it was terminated with 0, which was also part of the
493 value; thus, the array representation was not applicable to
494 polynomials where t^0 has coefficient zero. This change makes
495 the array representation useful in a more general context.
498 *) Various modifications and fixes to SSL/TLS cipher string
499 handling. For ECC, the code now distinguishes between fixed ECDH
500 with RSA certificates on the one hand and with ECDSA certificates
501 on the other hand, since these are separate ciphersuites. The
502 unused code for Fortezza ciphersuites has been removed.
504 For consistency with EDH, ephemeral ECDH is now called "EECDH"
505 (not "ECDHE"). For consistency with the code for DH
506 certificates, use of ECDH certificates is now considered ECDH
507 authentication, not RSA or ECDSA authentication (the latter is
508 merely the CA's signing algorithm and not actively used in the
511 The temporary ciphersuite alias "ECCdraft" is no longer
512 available, and ECC ciphersuites are no longer excluded from "ALL"
513 and "DEFAULT". The following aliases now exist for RFC 4492
514 ciphersuites, most of these by analogy with the DH case:
516 kECDHr - ECDH cert, signed with RSA
517 kECDHe - ECDH cert, signed with ECDSA
518 kECDH - ECDH cert (signed with either RSA or ECDSA)
519 kEECDH - ephemeral ECDH
520 ECDH - ECDH cert or ephemeral ECDH
526 AECDH - anonymous ECDH
527 EECDH - non-anonymous ephemeral ECDH (equivalent to "kEECDH:-AECDH")
531 *) Add additional S/MIME capabilities for AES and GOST ciphers if supported.
532 Use correct micalg parameters depending on digest(s) in signed message.
535 *) Add engine support for EVP_PKEY_ASN1_METHOD. Add functions to process
536 an ENGINE asn1 method. Support ENGINE lookups in the ASN1 code.
539 *) Initial engine support for EVP_PKEY_METHOD. New functions to permit
540 an engine to register a method. Add ENGINE lookups for methods and
541 functional reference processing.
544 *) New functions EVP_Digest{Sign,Verify)*. These are enchance versions of
545 EVP_{Sign,Verify}* which allow an application to customise the signature
549 *) New -resign option to smime utility. This adds one or more signers
550 to an existing PKCS#7 signedData structure. Also -md option to use an
551 alternative message digest algorithm for signing.
554 *) Tidy up PKCS#7 routines and add new functions to make it easier to
555 create PKCS7 structures containing multiple signers. Update smime
556 application to support multiple signers.
559 *) New -macalg option to pkcs12 utility to allow setting of an alternative
563 *) Initial support for PKCS#5 v2.0 PRFs other than default SHA1 HMAC.
564 Reorganize PBE internals to lookup from a static table using NIDs,
565 add support for HMAC PBE OID translation. Add a EVP_CIPHER ctrl:
566 EVP_CTRL_PBE_PRF_NID this allows a cipher to specify an alternative
567 PRF which will be automatically used with PBES2.
570 *) Replace the algorithm specific calls to generate keys in "req" with the
574 *) Update PKCS#7 enveloped data routines to use new API. This is now
575 supported by any public key method supporting the encrypt operation. A
576 ctrl is added to allow the public key algorithm to examine or modify
577 the PKCS#7 RecipientInfo structure if it needs to: for RSA this is
581 *) Add a ctrl to asn1 method to allow a public key algorithm to express
582 a default digest type to use. In most cases this will be SHA1 but some
583 algorithms (such as GOST) need to specify an alternative digest. The
584 return value indicates how strong the prefernce is 1 means optional and
585 2 is mandatory (that is it is the only supported type). Modify
586 ASN1_item_sign() to accept a NULL digest argument to indicate it should
587 use the default md. Update openssl utilities to use the default digest
588 type for signing if it is not explicitly indicated.
591 *) Use OID cross reference table in ASN1_sign() and ASN1_verify(). New
592 EVP_MD flag EVP_MD_FLAG_PKEY_METHOD_SIGNATURE. This uses the relevant
593 signing method from the key type. This effectively removes the link
594 between digests and public key types.
597 *) Add an OID cross reference table and utility functions. Its purpose is to
598 translate between signature OIDs such as SHA1WithrsaEncryption and SHA1,
599 rsaEncryption. This will allow some of the algorithm specific hackery
600 needed to use the correct OID to be removed.
603 *) Remove algorithm specific dependencies when setting PKCS7_SIGNER_INFO
604 structures for PKCS7_sign(). They are now set up by the relevant public
608 *) Add provisional EC pkey method with support for ECDSA and ECDH.
611 *) Add support for key derivation (agreement) in the API, DH method and
615 *) Add DSA pkey method and DH pkey methods, extend DH ASN1 method to support
616 public and private key formats. As a side effect these add additional
617 command line functionality not previously available: DSA signatures can be
618 generated and verified using pkeyutl and DH key support and generation in
623 [Oliver Tappe <zooey@hirschkaefer.de>]
625 *) New make target "install_html_docs" installs HTML renditions of the
627 [Oliver Tappe <zooey@hirschkaefer.de>]
629 *) New utility "genpkey" this is analagous to "genrsa" etc except it can
630 generate keys for any algorithm. Extend and update EVP_PKEY_METHOD to
631 support key and parameter generation and add initial key generation
632 functionality for RSA.
635 *) Add functions for main EVP_PKEY_method operations. The undocumented
636 functions EVP_PKEY_{encrypt,decrypt} have been renamed to
637 EVP_PKEY_{encrypt,decrypt}_old.
640 *) Initial definitions for EVP_PKEY_METHOD. This will be a high level public
641 key API, doesn't do much yet.
644 *) New function EVP_PKEY_asn1_get0_info() to retrieve information about
645 public key algorithms. New option to openssl utility:
646 "list-public-key-algorithms" to print out info.
649 *) Implement the Supported Elliptic Curves Extension for
650 ECC ciphersuites from draft-ietf-tls-ecc-12.txt.
653 *) Don't free up OIDs in OBJ_cleanup() if they are in use by EVP_MD or
654 EVP_CIPHER structures to avoid later problems in EVP_cleanup().
657 *) New utilities pkey and pkeyparam. These are similar to algorithm specific
658 utilities such as rsa, dsa, dsaparam etc except they process any key
662 *) Transfer public key printing routines to EVP_PKEY_ASN1_METHOD. New
663 functions EVP_PKEY_print_public(), EVP_PKEY_print_private(),
664 EVP_PKEY_print_param() to print public key data from an EVP_PKEY
668 *) Initial support for pluggable public key ASN1.
669 De-spaghettify the public key ASN1 handling. Move public and private
670 key ASN1 handling to a new EVP_PKEY_ASN1_METHOD structure. Relocate
671 algorithm specific handling to a single module within the relevant
672 algorithm directory. Add functions to allow (near) opaque processing
673 of public and private key structures.
676 *) Implement the Supported Point Formats Extension for
677 ECC ciphersuites from draft-ietf-tls-ecc-12.txt.
680 *) Add initial support for RFC 4279 PSK TLS ciphersuites. Add members
681 for the psk identity [hint] and the psk callback functions to the
682 SSL_SESSION, SSL and SSL_CTX structure.
685 PSK-RC4-SHA, PSK-3DES-EDE-CBC-SHA, PSK-AES128-CBC-SHA,
689 SSL_CTX_use_psk_identity_hint
690 SSL_get_psk_identity_hint
692 SSL_use_psk_identity_hint
694 [Mika Kousa and Pasi Eronen of Nokia Corporation]
696 *) Add RFC 3161 compliant time stamp request creation, response generation
697 and response verification functionality.
698 [Zoltán Glózik <zglozik@opentsa.org>, The OpenTSA Project]
700 *) Add initial support for TLS extensions, specifically for the server_name
701 extension so far. The SSL_SESSION, SSL_CTX, and SSL data structures now
702 have new members for a host name. The SSL data structure has an
703 additional member SSL_CTX *initial_ctx so that new sessions can be
704 stored in that context to allow for session resumption, even after the
705 SSL has been switched to a new SSL_CTX in reaction to a client's
706 server_name extension.
708 New functions (subject to change):
711 SSL_get_servername_type()
714 New CTRL codes and macros (subject to change):
716 SSL_CTRL_SET_TLSEXT_SERVERNAME_CB
717 - SSL_CTX_set_tlsext_servername_callback()
718 SSL_CTRL_SET_TLSEXT_SERVERNAME_ARG
719 - SSL_CTX_set_tlsext_servername_arg()
720 SSL_CTRL_SET_TLSEXT_HOSTNAME - SSL_set_tlsext_host_name()
722 openssl s_client has a new '-servername ...' option.
724 openssl s_server has new options '-servername_host ...', '-cert2 ...',
725 '-key2 ...', '-servername_fatal' (subject to change). This allows
726 testing the HostName extension for a specific single host name ('-cert'
727 and '-key' remain fallbacks for handshakes without HostName
728 negotiation). If the unrecogninzed_name alert has to be sent, this by
729 default is a warning; it becomes fatal with the '-servername_fatal'
732 [Peter Sylvester, Remy Allais, Christophe Renou]
734 *) Whirlpool hash implementation is added.
737 *) BIGNUM code on 64-bit SPARCv9 targets is switched from bn(64,64) to
738 bn(64,32). Because of instruction set limitations it doesn't have
739 any negative impact on performance. This was done mostly in order
740 to make it possible to share assembler modules, such as bn_mul_mont
741 implementations, between 32- and 64-bit builds without hassle.
744 *) Move code previously exiled into file crypto/ec/ec2_smpt.c
745 to ec2_smpl.c, and no longer require the OPENSSL_EC_BIN_PT_COMP
749 *) New candidate for BIGNUM assembler implementation, bn_mul_mont,
750 dedicated Montgomery multiplication procedure, is introduced.
751 BN_MONT_CTX is modified to allow bn_mul_mont to reach for higher
752 "64-bit" performance on certain 32-bit targets.
755 *) New option SSL_OP_NO_COMP to disable use of compression selectively
756 in SSL structures. New SSL ctrl to set maximum send fragment size.
757 Save memory by seeting the I/O buffer sizes dynamically instead of
758 using the maximum available value.
761 *) New option -V for 'openssl ciphers'. This prints the ciphersuite code
762 in addition to the text details.
765 *) Very, very preliminary EXPERIMENTAL support for printing of general
766 ASN1 structures. This currently produces rather ugly output and doesn't
767 handle several customised structures at all.
770 *) Integrated support for PVK file format and some related formats such
771 as MS PUBLICKEYBLOB and PRIVATEKEYBLOB. Command line switches to support
772 these in the 'rsa' and 'dsa' utilities.
775 *) Support for PKCS#1 RSAPublicKey format on rsa utility command line.
778 *) Remove the ancient ASN1_METHOD code. This was only ever used in one
779 place for the (very old) "NETSCAPE" format certificates which are now
780 handled using new ASN1 code equivalents.
783 *) Let the TLSv1_method() etc. functions return a 'const' SSL_METHOD
784 pointer and make the SSL_METHOD parameter in SSL_CTX_new,
785 SSL_CTX_set_ssl_version and SSL_set_ssl_method 'const'.
788 *) Modify CRL distribution points extension code to print out previously
789 unsupported fields. Enhance extension setting code to allow setting of
793 *) Add print and set support for Issuing Distribution Point CRL extension.
796 *) Change 'Configure' script to enable Camellia by default.
799 Changes between 0.9.8k and 0.9.8l [xx XXX xxxx]
801 *) Don't check self signed certificate signatures in X509_verify_cert():
802 it just wastes time without adding any security. As a useful side effect
803 self signed root CAs with non-FIPS digests are now usable in FIPS mode.
806 *) In dtls1_process_out_of_seq_message() the check if the current message
807 is already buffered was missing. For every new message was memory
808 allocated, allowing an attacker to perform an denial of service attack
809 with sending out of seq handshake messages until there is no memory
810 left. Additionally every future messege was buffered, even if the
811 sequence number made no sense and would be part of another handshake.
812 So only messages with sequence numbers less than 10 in advance will be
814 [Robin Seggelmann, discovered by Daniel Mentz]
816 *) Records are buffered if they arrive with a future epoch to be
817 processed after finishing the corresponding handshake. There is
818 currently no limitation to this buffer allowing an attacker to perform
819 a DOS attack with sending records with future epochs until there is no
820 memory left. This patch adds the pqueue_size() function to detemine
821 the size of a buffer and limits the record buffer to 100 entries.
822 [Robin Seggelmann, discovered by Daniel Mentz]
824 *) Keep a copy of frag->msg_header.frag_len so it can be used after the
825 parent structure is freed.
828 *) Handle non-blocking I/O properly in SSL_shutdown() call.
829 [Darryl Miles <darryl-mailinglists@netbauds.net>]
832 [Ilya O. <vrghost@gmail.com>]
834 Changes between 0.9.8j and 0.9.8k [25 Mar 2009]
836 *) Don't set val to NULL when freeing up structures, it is freed up by
837 underlying code. If sizeof(void *) > sizeof(long) this can result in
838 zeroing past the valid field. (CVE-2009-0789)
839 [Paolo Ganci <Paolo.Ganci@AdNovum.CH>]
841 *) Fix bug where return value of CMS_SignerInfo_verify_content() was not
842 checked correctly. This would allow some invalid signed attributes to
843 appear to verify correctly. (CVE-2009-0591)
844 [Ivan Nestlerode <inestlerode@us.ibm.com>]
846 *) Reject UniversalString and BMPString types with invalid lengths. This
847 prevents a crash in ASN1_STRING_print_ex() which assumes the strings have
848 a legal length. (CVE-2009-0590)
851 *) Set S/MIME signing as the default purpose rather than setting it
852 unconditionally. This allows applications to override it at the store
856 *) Permit restricted recursion of ASN1 strings. This is needed in practice
857 to handle some structures.
860 *) Improve efficiency of mem_gets: don't search whole buffer each time
862 [Jeremy Shapiro <jnshapir@us.ibm.com>]
864 *) New -hex option for openssl rand.
867 *) Print out UTF8String and NumericString when parsing ASN1.
870 *) Support NumericString type for name components.
873 *) Allow CC in the environment to override the automatically chosen
874 compiler. Note that nothing is done to ensure flags work with the
878 Changes between 0.9.8i and 0.9.8j [07 Jan 2009]
880 *) Properly check EVP_VerifyFinal() and similar return values
882 [Ben Laurie, Bodo Moeller, Google Security Team]
884 *) Enable TLS extensions by default.
887 *) Allow the CHIL engine to be loaded, whether the application is
888 multithreaded or not. (This does not release the developer from the
889 obligation to set up the dynamic locking callbacks.)
890 [Sander Temme <sander@temme.net>]
892 *) Use correct exit code if there is an error in dgst command.
893 [Steve Henson; problem pointed out by Roland Dirlewanger]
895 *) Tweak Configure so that you need to say "experimental-jpake" to enable
896 JPAKE, and need to use -DOPENSSL_EXPERIMENTAL_JPAKE in applications.
899 *) Add experimental JPAKE support, including demo authentication in
900 s_client and s_server.
903 *) Set the comparison function in v3_addr_canonize().
904 [Rob Austein <sra@hactrn.net>]
906 *) Add support for XMPP STARTTLS in s_client.
907 [Philip Paeps <philip@freebsd.org>]
909 *) Change the server-side SSL_OP_NETSCAPE_REUSE_CIPHER_CHANGE_BUG behavior
910 to ensure that even with this option, only ciphersuites in the
911 server's preference list will be accepted. (Note that the option
912 applies only when resuming a session, so the earlier behavior was
913 just about the algorithm choice for symmetric cryptography.)
916 Changes between 0.9.8h and 0.9.8i [15 Sep 2008]
918 *) Fix a state transitition in s3_srvr.c and d1_srvr.c
919 (was using SSL3_ST_CW_CLNT_HELLO_B, should be ..._ST_SW_SRVR_...).
922 *) The fix in 0.9.8c that supposedly got rid of unsafe
923 double-checked locking was incomplete for RSA blinding,
924 addressing just one layer of what turns out to have been
925 doubly unsafe triple-checked locking.
927 So now fix this for real by retiring the MONT_HELPER macro
928 in crypto/rsa/rsa_eay.c.
930 [Bodo Moeller; problem pointed out by Marius Schilder]
932 *) Various precautionary measures:
934 - Avoid size_t integer overflow in HASH_UPDATE (md32_common.h).
936 - Avoid a buffer overflow in d2i_SSL_SESSION() (ssl_asn1.c).
937 (NB: This would require knowledge of the secret session ticket key
938 to exploit, in which case you'd be SOL either way.)
940 - Change bn_nist.c so that it will properly handle input BIGNUMs
941 outside the expected range.
943 - Enforce the 'num' check in BN_div() (bn_div.c) for non-BN_DEBUG
946 [Neel Mehta, Bodo Moeller]
948 *) Allow engines to be "soft loaded" - i.e. optionally don't die if
949 the load fails. Useful for distros.
950 [Ben Laurie and the FreeBSD team]
952 *) Add support for Local Machine Keyset attribute in PKCS#12 files.
955 *) Fix BN_GF2m_mod_arr() top-bit cleanup code.
958 *) Expand ENGINE to support engine supplied SSL client certificate functions.
960 This work was sponsored by Logica.
963 *) Add CryptoAPI ENGINE to support use of RSA and DSA keys held in Windows
964 keystores. Support for SSL/TLS client authentication too.
965 Not compiled unless enable-capieng specified to Configure.
967 This work was sponsored by Logica.
970 *) Fix bug in X509_ATTRIBUTE creation: dont set attribute using
971 ASN1_TYPE_set1 if MBSTRING flag set. This bug would crash certain
972 attribute creation routines such as certifcate requests and PKCS#12
976 Changes between 0.9.8g and 0.9.8h [28 May 2008]
978 *) Fix flaw if 'Server Key exchange message' is omitted from a TLS
979 handshake which could lead to a cilent crash as found using the
980 Codenomicon TLS test suite (CVE-2008-1672)
981 [Steve Henson, Mark Cox]
983 *) Fix double free in TLS server name extensions which could lead to
984 a remote crash found by Codenomicon TLS test suite (CVE-2008-0891)
987 *) Clear error queue in SSL_CTX_use_certificate_chain_file()
989 Clear the error queue to ensure that error entries left from
990 older function calls do not interfere with the correct operation.
991 [Lutz Jaenicke, Erik de Castro Lopo]
993 *) Remove root CA certificates of commercial CAs:
995 The OpenSSL project does not recommend any specific CA and does not
996 have any policy with respect to including or excluding any CA.
997 Therefore it does not make any sense to ship an arbitrary selection
998 of root CA certificates with the OpenSSL software.
1001 *) RSA OAEP patches to fix two separate invalid memory reads.
1002 The first one involves inputs when 'lzero' is greater than
1003 'SHA_DIGEST_LENGTH' (it would read about SHA_DIGEST_LENGTH bytes
1004 before the beginning of from). The second one involves inputs where
1005 the 'db' section contains nothing but zeroes (there is a one-byte
1006 invalid read after the end of 'db').
1007 [Ivan Nestlerode <inestlerode@us.ibm.com>]
1009 *) Partial backport from 0.9.9-dev:
1011 Introduce bn_mul_mont (dedicated Montgomery multiplication
1012 procedure) as a candidate for BIGNUM assembler implementation.
1013 While 0.9.9-dev uses assembler for various architectures, only
1014 x86_64 is available by default here in the 0.9.8 branch, and
1015 32-bit x86 is available through a compile-time setting.
1017 To try the 32-bit x86 assembler implementation, use Configure
1018 option "enable-montasm" (which exists only for this backport).
1020 As "enable-montasm" for 32-bit x86 disclaims code stability
1021 anyway, in this constellation we activate additional code
1022 backported from 0.9.9-dev for further performance improvements,
1023 namely BN_from_montgomery_word. (To enable this otherwise,
1024 e.g. x86_64, try "-DMONT_FROM_WORD___NON_DEFAULT_0_9_8_BUILD".)
1026 [Andy Polyakov (backport partially by Bodo Moeller)]
1028 *) Add TLS session ticket callback. This allows an application to set
1029 TLS ticket cipher and HMAC keys rather than relying on hardcoded fixed
1030 values. This is useful for key rollover for example where several key
1031 sets may exist with different names.
1034 *) Reverse ENGINE-internal logic for caching default ENGINE handles.
1035 This was broken until now in 0.9.8 releases, such that the only way
1036 a registered ENGINE could be used (assuming it initialises
1037 successfully on the host) was to explicitly set it as the default
1038 for the relevant algorithms. This is in contradiction with 0.9.7
1039 behaviour and the documentation. With this fix, when an ENGINE is
1040 registered into a given algorithm's table of implementations, the
1041 'uptodate' flag is reset so that auto-discovery will be used next
1042 time a new context for that algorithm attempts to select an
1044 [Ian Lister (tweaked by Geoff Thorpe)]
1046 *) Backport of CMS code to OpenSSL 0.9.8. This differs from the 0.9.9
1047 implemention in the following ways:
1049 Lack of EVP_PKEY_ASN1_METHOD means algorithm parameters have to be
1052 Lack of BER streaming support means one pass streaming processing is
1053 only supported if data is detached: setting the streaming flag is
1054 ignored for embedded content.
1056 CMS support is disabled by default and must be explicitly enabled
1057 with the enable-cms configuration option.
1060 *) Update the GMP engine glue to do direct copies between BIGNUM and
1061 mpz_t when openssl and GMP use the same limb size. Otherwise the
1062 existing "conversion via a text string export" trick is still used.
1063 [Paul Sheer <paulsheer@gmail.com>]
1065 *) Zlib compression BIO. This is a filter BIO which compressed and
1066 uncompresses any data passed through it.
1069 *) Add AES_wrap_key() and AES_unwrap_key() functions to implement
1070 RFC3394 compatible AES key wrapping.
1073 *) Add utility functions to handle ASN1 structures. ASN1_STRING_set0():
1074 sets string data without copying. X509_ALGOR_set0() and
1075 X509_ALGOR_get0(): set and retrieve X509_ALGOR (AlgorithmIdentifier)
1076 data. Attribute function X509at_get0_data_by_OBJ(): retrieves data
1077 from an X509_ATTRIBUTE structure optionally checking it occurs only
1078 once. ASN1_TYPE_set1(): set and ASN1_TYPE structure copying supplied
1082 *) Fix BN flag handling in RSA_eay_mod_exp() and BN_MONT_CTX_set()
1083 to get the expected BN_FLG_CONSTTIME behavior.
1084 [Bodo Moeller (Google)]
1088 - fixed wrong usage of ioctlsocket() when build for LIBC BSD sockets
1089 - fixed do_tests.pl to run the test suite with CLIB builds too (CLIB_OPT)
1090 - added some more tests to do_tests.pl
1091 - fixed RunningProcess usage so that it works with newer LIBC NDKs too
1092 - removed usage of BN_LLONG for CLIB builds to avoid runtime dependency
1093 - added new Configure targets netware-clib-bsdsock, netware-clib-gcc,
1094 netware-clib-bsdsock-gcc, netware-libc-bsdsock-gcc
1095 - various changes to netware.pl to enable gcc-cross builds on Win32
1097 - changed crypto/bio/b_sock.c to work with macro functions (CLIB BSD)
1098 - various changes to fix missing prototype warnings
1099 - fixed x86nasm.pl to create correct asm files for NASM COFF output
1100 - added AES, WHIRLPOOL and CPUID assembler code to build files
1101 - added missing AES assembler make rules to mk1mf.pl
1102 - fixed order of includes in apps/ocsp.c so that e_os.h settings apply
1103 [Guenter Knauf <eflash@gmx.net>]
1105 *) Implement certificate status request TLS extension defined in RFC3546.
1106 A client can set the appropriate parameters and receive the encoded
1107 OCSP response via a callback. A server can query the supplied parameters
1108 and set the encoded OCSP response in the callback. Add simplified examples
1109 to s_client and s_server.
1112 Changes between 0.9.8f and 0.9.8g [19 Oct 2007]
1114 *) Fix various bugs:
1115 + Binary incompatibility of ssl_ctx_st structure
1116 + DTLS interoperation with non-compliant servers
1117 + Don't call get_session_cb() without proposed session
1118 + Fix ia64 assembler code
1119 [Andy Polyakov, Steve Henson]
1121 Changes between 0.9.8e and 0.9.8f [11 Oct 2007]
1123 *) DTLS Handshake overhaul. There were longstanding issues with
1124 OpenSSL DTLS implementation, which were making it impossible for
1125 RFC 4347 compliant client to communicate with OpenSSL server.
1126 Unfortunately just fixing these incompatibilities would "cut off"
1127 pre-0.9.8f clients. To allow for hassle free upgrade post-0.9.8e
1128 server keeps tolerating non RFC compliant syntax. The opposite is
1129 not true, 0.9.8f client can not communicate with earlier server.
1130 This update even addresses CVE-2007-4995.
1133 *) Changes to avoid need for function casts in OpenSSL: some compilers
1134 (gcc 4.2 and later) reject their use.
1135 [Kurt Roeckx <kurt@roeckx.be>, Peter Hartley <pdh@utter.chaos.org.uk>,
1138 *) Add RFC4507 support to OpenSSL. This includes the corrections in
1139 RFC4507bis. The encrypted ticket format is an encrypted encoded
1140 SSL_SESSION structure, that way new session features are automatically
1143 If a client application caches session in an SSL_SESSION structure
1144 support is transparent because tickets are now stored in the encoded
1147 The SSL_CTX structure automatically generates keys for ticket
1148 protection in servers so again support should be possible
1149 with no application modification.
1151 If a client or server wishes to disable RFC4507 support then the option
1152 SSL_OP_NO_TICKET can be set.
1154 Add a TLS extension debugging callback to allow the contents of any client
1155 or server extensions to be examined.
1157 This work was sponsored by Google.
1160 *) Add initial support for TLS extensions, specifically for the server_name
1161 extension so far. The SSL_SESSION, SSL_CTX, and SSL data structures now
1162 have new members for a host name. The SSL data structure has an
1163 additional member SSL_CTX *initial_ctx so that new sessions can be
1164 stored in that context to allow for session resumption, even after the
1165 SSL has been switched to a new SSL_CTX in reaction to a client's
1166 server_name extension.
1168 New functions (subject to change):
1170 SSL_get_servername()
1171 SSL_get_servername_type()
1174 New CTRL codes and macros (subject to change):
1176 SSL_CTRL_SET_TLSEXT_SERVERNAME_CB
1177 - SSL_CTX_set_tlsext_servername_callback()
1178 SSL_CTRL_SET_TLSEXT_SERVERNAME_ARG
1179 - SSL_CTX_set_tlsext_servername_arg()
1180 SSL_CTRL_SET_TLSEXT_HOSTNAME - SSL_set_tlsext_host_name()
1182 openssl s_client has a new '-servername ...' option.
1184 openssl s_server has new options '-servername_host ...', '-cert2 ...',
1185 '-key2 ...', '-servername_fatal' (subject to change). This allows
1186 testing the HostName extension for a specific single host name ('-cert'
1187 and '-key' remain fallbacks for handshakes without HostName
1188 negotiation). If the unrecogninzed_name alert has to be sent, this by
1189 default is a warning; it becomes fatal with the '-servername_fatal'
1192 [Peter Sylvester, Remy Allais, Christophe Renou, Steve Henson]
1194 *) Add AES and SSE2 assembly language support to VC++ build.
1197 *) Mitigate attack on final subtraction in Montgomery reduction.
1200 *) Fix crypto/ec/ec_mult.c to work properly with scalars of value 0
1201 (which previously caused an internal error).
1204 *) Squeeze another 10% out of IGE mode when in != out.
1207 *) AES IGE mode speedup.
1208 [Dean Gaudet (Google)]
1210 *) Add the Korean symmetric 128-bit cipher SEED (see
1211 http://www.kisa.or.kr/kisa/seed/jsp/seed_eng.jsp) and
1212 add SEED ciphersuites from RFC 4162:
1214 TLS_RSA_WITH_SEED_CBC_SHA = "SEED-SHA"
1215 TLS_DHE_DSS_WITH_SEED_CBC_SHA = "DHE-DSS-SEED-SHA"
1216 TLS_DHE_RSA_WITH_SEED_CBC_SHA = "DHE-RSA-SEED-SHA"
1217 TLS_DH_anon_WITH_SEED_CBC_SHA = "ADH-SEED-SHA"
1219 To minimize changes between patchlevels in the OpenSSL 0.9.8
1220 series, SEED remains excluded from compilation unless OpenSSL
1221 is configured with 'enable-seed'.
1222 [KISA, Bodo Moeller]
1224 *) Mitigate branch prediction attacks, which can be practical if a
1225 single processor is shared, allowing a spy process to extract
1226 information. For detailed background information, see
1227 http://eprint.iacr.org/2007/039 (O. Aciicmez, S. Gueron,
1228 J.-P. Seifert, "New Branch Prediction Vulnerabilities in OpenSSL
1229 and Necessary Software Countermeasures"). The core of the change
1230 are new versions BN_div_no_branch() and
1231 BN_mod_inverse_no_branch() of BN_div() and BN_mod_inverse(),
1232 respectively, which are slower, but avoid the security-relevant
1233 conditional branches. These are automatically called by BN_div()
1234 and BN_mod_inverse() if the flag BN_FLG_CONSTTIME is set for one
1235 of the input BIGNUMs. Also, BN_is_bit_set() has been changed to
1236 remove a conditional branch.
1238 BN_FLG_CONSTTIME is the new name for the previous
1239 BN_FLG_EXP_CONSTTIME flag, since it now affects more than just
1240 modular exponentiation. (Since OpenSSL 0.9.7h, setting this flag
1241 in the exponent causes BN_mod_exp_mont() to use the alternative
1242 implementation in BN_mod_exp_mont_consttime().) The old name
1243 remains as a deprecated alias.
1245 Similary, RSA_FLAG_NO_EXP_CONSTTIME is replaced by a more general
1246 RSA_FLAG_NO_CONSTTIME flag since the RSA implementation now uses
1247 constant-time implementations for more than just exponentiation.
1248 Here too the old name is kept as a deprecated alias.
1250 BN_BLINDING_new() will now use BN_dup() for the modulus so that
1251 the BN_BLINDING structure gets an independent copy of the
1252 modulus. This means that the previous "BIGNUM *m" argument to
1253 BN_BLINDING_new() and to BN_BLINDING_create_param() now
1254 essentially becomes "const BIGNUM *m", although we can't actually
1255 change this in the header file before 0.9.9. It allows
1256 RSA_setup_blinding() to use BN_with_flags() on the modulus to
1257 enable BN_FLG_CONSTTIME.
1259 [Matthew D Wood (Intel Corp)]
1261 *) In the SSL/TLS server implementation, be strict about session ID
1262 context matching (which matters if an application uses a single
1263 external cache for different purposes). Previously,
1264 out-of-context reuse was forbidden only if SSL_VERIFY_PEER was
1265 set. This did ensure strict client verification, but meant that,
1266 with applications using a single external cache for quite
1267 different requirements, clients could circumvent ciphersuite
1268 restrictions for a given session ID context by starting a session
1269 in a different context.
1272 *) Include "!eNULL" in SSL_DEFAULT_CIPHER_LIST to make sure that
1273 a ciphersuite string such as "DEFAULT:RSA" cannot enable
1274 authentication-only ciphersuites.
1277 *) Update the SSL_get_shared_ciphers() fix CVE-2006-3738 which was
1278 not complete and could lead to a possible single byte overflow
1279 (CVE-2007-5135) [Ben Laurie]
1281 Changes between 0.9.8d and 0.9.8e [23 Feb 2007]
1283 *) Since AES128 and AES256 (and similarly Camellia128 and
1284 Camellia256) share a single mask bit in the logic of
1285 ssl/ssl_ciph.c, the code for masking out disabled ciphers needs a
1286 kludge to work properly if AES128 is available and AES256 isn't
1287 (or if Camellia128 is available and Camellia256 isn't).
1290 *) Fix the BIT STRING encoding generated by crypto/ec/ec_asn1.c
1291 (within i2d_ECPrivateKey, i2d_ECPKParameters, i2d_ECParameters):
1292 When a point or a seed is encoded in a BIT STRING, we need to
1293 prevent the removal of trailing zero bits to get the proper DER
1294 encoding. (By default, crypto/asn1/a_bitstr.c assumes the case
1295 of a NamedBitList, for which trailing 0 bits need to be removed.)
1298 *) Have SSL/TLS server implementation tolerate "mismatched" record
1299 protocol version while receiving ClientHello even if the
1300 ClientHello is fragmented. (The server can't insist on the
1301 particular protocol version it has chosen before the ServerHello
1302 message has informed the client about his choice.)
1305 *) Add RFC 3779 support.
1306 [Rob Austein for ARIN, Ben Laurie]
1308 *) Load error codes if they are not already present instead of using a
1309 static variable. This allows them to be cleanly unloaded and reloaded.
1310 Improve header file function name parsing.
1313 *) extend SMTP and IMAP protocol emulation in s_client to use EHLO
1314 or CAPABILITY handshake as required by RFCs.
1317 Changes between 0.9.8c and 0.9.8d [28 Sep 2006]
1319 *) Introduce limits to prevent malicious keys being able to
1320 cause a denial of service. (CVE-2006-2940)
1321 [Steve Henson, Bodo Moeller]
1323 *) Fix ASN.1 parsing of certain invalid structures that can result
1324 in a denial of service. (CVE-2006-2937) [Steve Henson]
1326 *) Fix buffer overflow in SSL_get_shared_ciphers() function.
1327 (CVE-2006-3738) [Tavis Ormandy and Will Drewry, Google Security Team]
1329 *) Fix SSL client code which could crash if connecting to a
1330 malicious SSLv2 server. (CVE-2006-4343)
1331 [Tavis Ormandy and Will Drewry, Google Security Team]
1333 *) Since 0.9.8b, ciphersuite strings naming explicit ciphersuites
1334 match only those. Before that, "AES256-SHA" would be interpreted
1335 as a pattern and match "AES128-SHA" too (since AES128-SHA got
1336 the same strength classification in 0.9.7h) as we currently only
1337 have a single AES bit in the ciphersuite description bitmap.
1338 That change, however, also applied to ciphersuite strings such as
1339 "RC4-MD5" that intentionally matched multiple ciphersuites --
1340 namely, SSL 2.0 ciphersuites in addition to the more common ones
1341 from SSL 3.0/TLS 1.0.
1343 So we change the selection algorithm again: Naming an explicit
1344 ciphersuite selects this one ciphersuite, and any other similar
1345 ciphersuite (same bitmap) from *other* protocol versions.
1346 Thus, "RC4-MD5" again will properly select both the SSL 2.0
1347 ciphersuite and the SSL 3.0/TLS 1.0 ciphersuite.
1349 Since SSL 2.0 does not have any ciphersuites for which the
1350 128/256 bit distinction would be relevant, this works for now.
1351 The proper fix will be to use different bits for AES128 and
1352 AES256, which would have avoided the problems from the beginning;
1353 however, bits are scarce, so we can only do this in a new release
1354 (not just a patchlevel) when we can change the SSL_CIPHER
1355 definition to split the single 'unsigned long mask' bitmap into
1356 multiple values to extend the available space.
1360 Changes between 0.9.8b and 0.9.8c [05 Sep 2006]
1362 *) Avoid PKCS #1 v1.5 signature attack discovered by Daniel Bleichenbacher
1363 (CVE-2006-4339) [Ben Laurie and Google Security Team]
1365 *) Add AES IGE and biIGE modes.
1368 *) Change the Unix randomness entropy gathering to use poll() when
1369 possible instead of select(), since the latter has some
1370 undesirable limitations.
1371 [Darryl Miles via Richard Levitte and Bodo Moeller]
1373 *) Disable "ECCdraft" ciphersuites more thoroughly. Now special
1374 treatment in ssl/ssl_ciph.s makes sure that these ciphersuites
1375 cannot be implicitly activated as part of, e.g., the "AES" alias.
1376 However, please upgrade to OpenSSL 0.9.9[-dev] for
1377 non-experimental use of the ECC ciphersuites to get TLS extension
1378 support, which is required for curve and point format negotiation
1379 to avoid potential handshake problems.
1382 *) Disable rogue ciphersuites:
1384 - SSLv2 0x08 0x00 0x80 ("RC4-64-MD5")
1385 - SSLv3/TLSv1 0x00 0x61 ("EXP1024-RC2-CBC-MD5")
1386 - SSLv3/TLSv1 0x00 0x60 ("EXP1024-RC4-MD5")
1388 The latter two were purportedly from
1389 draft-ietf-tls-56-bit-ciphersuites-0[01].txt, but do not really
1392 Also deactivate the remaining ciphersuites from
1393 draft-ietf-tls-56-bit-ciphersuites-01.txt. These are just as
1394 unofficial, and the ID has long expired.
1397 *) Fix RSA blinding Heisenbug (problems sometimes occured on
1398 dual-core machines) and other potential thread-safety issues.
1401 *) Add the symmetric cipher Camellia (128-bit, 192-bit, 256-bit key
1402 versions), which is now available for royalty-free use
1403 (see http://info.isl.ntt.co.jp/crypt/eng/info/chiteki.html).
1404 Also, add Camellia TLS ciphersuites from RFC 4132.
1406 To minimize changes between patchlevels in the OpenSSL 0.9.8
1407 series, Camellia remains excluded from compilation unless OpenSSL
1408 is configured with 'enable-camellia'.
1411 *) Disable the padding bug check when compression is in use. The padding
1412 bug check assumes the first packet is of even length, this is not
1413 necessarily true if compresssion is enabled and can result in false
1414 positives causing handshake failure. The actual bug test is ancient
1415 code so it is hoped that implementations will either have fixed it by
1416 now or any which still have the bug do not support compression.
1419 Changes between 0.9.8a and 0.9.8b [04 May 2006]
1421 *) When applying a cipher rule check to see if string match is an explicit
1422 cipher suite and only match that one cipher suite if it is.
1425 *) Link in manifests for VC++ if needed.
1426 [Austin Ziegler <halostatue@gmail.com>]
1428 *) Update support for ECC-based TLS ciphersuites according to
1429 draft-ietf-tls-ecc-12.txt with proposed changes (but without
1430 TLS extensions, which are supported starting with the 0.9.9
1431 branch, not in the OpenSSL 0.9.8 branch).
1434 *) New functions EVP_CIPHER_CTX_new() and EVP_CIPHER_CTX_free() to support
1435 opaque EVP_CIPHER_CTX handling.
1438 *) Fixes and enhancements to zlib compression code. We now only use
1439 "zlib1.dll" and use the default __cdecl calling convention on Win32
1440 to conform with the standards mentioned here:
1441 http://www.zlib.net/DLL_FAQ.txt
1442 Static zlib linking now works on Windows and the new --with-zlib-include
1443 --with-zlib-lib options to Configure can be used to supply the location
1444 of the headers and library. Gracefully handle case where zlib library
1448 *) Several fixes and enhancements to the OID generation code. The old code
1449 sometimes allowed invalid OIDs (1.X for X >= 40 for example), couldn't
1450 handle numbers larger than ULONG_MAX, truncated printing and had a
1451 non standard OBJ_obj2txt() behaviour.
1454 *) Add support for building of engines under engine/ as shared libraries
1455 under VC++ build system.
1458 *) Corrected the numerous bugs in the Win32 path splitter in DSO.
1459 Hopefully, we will not see any false combination of paths any more.
1462 Changes between 0.9.8 and 0.9.8a [11 Oct 2005]
1464 *) Remove the functionality of SSL_OP_MSIE_SSLV2_RSA_PADDING
1465 (part of SSL_OP_ALL). This option used to disable the
1466 countermeasure against man-in-the-middle protocol-version
1467 rollback in the SSL 2.0 server implementation, which is a bad
1468 idea. (CVE-2005-2969)
1470 [Bodo Moeller; problem pointed out by Yutaka Oiwa (Research Center
1471 for Information Security, National Institute of Advanced Industrial
1472 Science and Technology [AIST], Japan)]
1474 *) Add two function to clear and return the verify parameter flags.
1477 *) Keep cipherlists sorted in the source instead of sorting them at
1478 runtime, thus removing the need for a lock.
1481 *) Avoid some small subgroup attacks in Diffie-Hellman.
1482 [Nick Mathewson and Ben Laurie]
1484 *) Add functions for well-known primes.
1487 *) Extended Windows CE support.
1488 [Satoshi Nakamura and Andy Polyakov]
1490 *) Initialize SSL_METHOD structures at compile time instead of during
1491 runtime, thus removing the need for a lock.
1494 *) Make PKCS7_decrypt() work even if no certificate is supplied by
1495 attempting to decrypt each encrypted key in turn. Add support to
1499 Changes between 0.9.7h and 0.9.8 [05 Jul 2005]
1501 [NB: OpenSSL 0.9.7i and later 0.9.7 patch levels were released after
1504 *) Add libcrypto.pc and libssl.pc for those who feel they need them.
1507 *) Change CA.sh and CA.pl so they don't bundle the CSR and the private
1508 key into the same file any more.
1511 *) Add initial support for Win64, both IA64 and AMD64/x64 flavors.
1514 *) Add -utf8 command line and config file option to 'ca'.
1515 [Stefan <stf@udoma.org]
1517 *) Removed the macro des_crypt(), as it seems to conflict with some
1518 libraries. Use DES_crypt().
1521 *) Correct naming of the 'chil' and '4758cca' ENGINEs. This
1522 involves renaming the source and generated shared-libs for
1523 both. The engines will accept the corrected or legacy ids
1524 ('ncipher' and '4758_cca' respectively) when binding. NB,
1525 this only applies when building 'shared'.
1526 [Corinna Vinschen <vinschen@redhat.com> and Geoff Thorpe]
1528 *) Add attribute functions to EVP_PKEY structure. Modify
1529 PKCS12_create() to recognize a CSP name attribute and
1530 use it. Make -CSP option work again in pkcs12 utility.
1533 *) Add new functionality to the bn blinding code:
1534 - automatic re-creation of the BN_BLINDING parameters after
1535 a fixed number of uses (currently 32)
1536 - add new function for parameter creation
1537 - introduce flags to control the update behaviour of the
1538 BN_BLINDING parameters
1539 - hide BN_BLINDING structure
1540 Add a second BN_BLINDING slot to the RSA structure to improve
1541 performance when a single RSA object is shared among several
1545 *) Add support for DTLS.
1546 [Nagendra Modadugu <nagendra@cs.stanford.edu> and Ben Laurie]
1548 *) Add support for DER encoded private keys (SSL_FILETYPE_ASN1)
1549 to SSL_CTX_use_PrivateKey_file() and SSL_use_PrivateKey_file()
1552 *) Remove buggy and incompletet DH cert support from
1553 ssl/ssl_rsa.c and ssl/s3_both.c
1556 *) Use SHA-1 instead of MD5 as the default digest algorithm for
1557 the apps/openssl applications.
1560 *) Compile clean with "-Wall -Wmissing-prototypes
1561 -Wstrict-prototypes -Wmissing-declarations -Werror". Currently
1562 DEBUG_SAFESTACK must also be set.
1565 *) Change ./Configure so that certain algorithms can be disabled by default.
1566 The new counterpiece to "no-xxx" is "enable-xxx".
1568 The patented RC5 and MDC2 algorithms will now be disabled unless
1569 "enable-rc5" and "enable-mdc2", respectively, are specified.
1571 (IDEA remains enabled despite being patented. This is because IDEA
1572 is frequently required for interoperability, and there is no license
1573 fee for non-commercial use. As before, "no-idea" can be used to
1574 avoid this algorithm.)
1578 *) Add processing of proxy certificates (see RFC 3820). This work was
1579 sponsored by KTH (The Royal Institute of Technology in Stockholm) and
1580 EGEE (Enabling Grids for E-science in Europe).
1583 *) RC4 performance overhaul on modern architectures/implementations, such
1584 as Intel P4, IA-64 and AMD64.
1587 *) New utility extract-section.pl. This can be used specify an alternative
1588 section number in a pod file instead of having to treat each file as
1589 a separate case in Makefile. This can be done by adding two lines to the
1592 =for comment openssl_section:XXX
1594 The blank line is mandatory.
1598 *) New arguments -certform, -keyform and -pass for s_client and s_server
1599 to allow alternative format key and certificate files and passphrase
1603 *) New structure X509_VERIFY_PARAM which combines current verify parameters,
1604 update associated structures and add various utility functions.
1606 Add new policy related verify parameters, include policy checking in
1607 standard verify code. Enhance 'smime' application with extra parameters
1608 to support policy checking and print out.
1611 *) Add a new engine to support VIA PadLock ACE extensions in the VIA C3
1612 Nehemiah processors. These extensions support AES encryption in hardware
1613 as well as RNG (though RNG support is currently disabled).
1614 [Michal Ludvig <michal@logix.cz>, with help from Andy Polyakov]
1616 *) Deprecate BN_[get|set]_params() functions (they were ignored internally).
1619 *) New FIPS 180-2 algorithms, SHA-224/-256/-384/-512 are implemented.
1620 [Andy Polyakov and a number of other people]
1622 *) Improved PowerPC platform support. Most notably BIGNUM assembler
1623 implementation contributed by IBM.
1624 [Suresh Chari, Peter Waltenberg, Andy Polyakov]
1626 *) The new 'RSA_generate_key_ex' function now takes a BIGNUM for the public
1627 exponent rather than 'unsigned long'. There is a corresponding change to
1628 the new 'rsa_keygen' element of the RSA_METHOD structure.
1629 [Jelte Jansen, Geoff Thorpe]
1631 *) Functionality for creating the initial serial number file is now
1632 moved from CA.pl to the 'ca' utility with a new option -create_serial.
1634 (Before OpenSSL 0.9.7e, CA.pl used to initialize the serial
1635 number file to 1, which is bound to cause problems. To avoid
1636 the problems while respecting compatibility between different 0.9.7
1637 patchlevels, 0.9.7e employed 'openssl x509 -next_serial' in
1638 CA.pl for serial number initialization. With the new release 0.9.8,
1639 we can fix the problem directly in the 'ca' utility.)
1642 *) Reduced header interdepencies by declaring more opaque objects in
1643 ossl_typ.h. As a consequence, including some headers (eg. engine.h) will
1644 give fewer recursive includes, which could break lazy source code - so
1645 this change is covered by the OPENSSL_NO_DEPRECATED symbol. As always,
1646 developers should define this symbol when building and using openssl to
1647 ensure they track the recommended behaviour, interfaces, [etc], but
1648 backwards-compatible behaviour prevails when this isn't defined.
1651 *) New function X509_POLICY_NODE_print() which prints out policy nodes.
1654 *) Add new EVP function EVP_CIPHER_CTX_rand_key and associated functionality.
1655 This will generate a random key of the appropriate length based on the
1656 cipher context. The EVP_CIPHER can provide its own random key generation
1657 routine to support keys of a specific form. This is used in the des and
1658 3des routines to generate a key of the correct parity. Update S/MIME
1659 code to use new functions and hence generate correct parity DES keys.
1660 Add EVP_CHECK_DES_KEY #define to return an error if the key is not
1661 valid (weak or incorrect parity).
1664 *) Add a local set of CRLs that can be used by X509_verify_cert() as well
1665 as looking them up. This is useful when the verified structure may contain
1666 CRLs, for example PKCS#7 signedData. Modify PKCS7_verify() to use any CRLs
1667 present unless the new PKCS7_NO_CRL flag is asserted.
1670 *) Extend ASN1 oid configuration module. It now additionally accepts the
1673 shortName = some long name, 1.2.3.4
1676 *) Reimplemented the BN_CTX implementation. There is now no more static
1677 limitation on the number of variables it can handle nor the depth of the
1678 "stack" handling for BN_CTX_start()/BN_CTX_end() pairs. The stack
1679 information can now expand as required, and rather than having a single
1680 static array of bignums, BN_CTX now uses a linked-list of such arrays
1681 allowing it to expand on demand whilst maintaining the usefulness of
1682 BN_CTX's "bundling".
1685 *) Add a missing BN_CTX parameter to the 'rsa_mod_exp' callback in RSA_METHOD
1686 to allow all RSA operations to function using a single BN_CTX.
1689 *) Preliminary support for certificate policy evaluation and checking. This
1690 is initially intended to pass the tests outlined in "Conformance Testing
1691 of Relying Party Client Certificate Path Processing Logic" v1.07.
1694 *) bn_dup_expand() has been deprecated, it was introduced in 0.9.7 and
1695 remained unused and not that useful. A variety of other little bignum
1696 tweaks and fixes have also been made continuing on from the audit (see
1700 *) Constify all or almost all d2i, c2i, s2i and r2i functions, along with
1701 associated ASN1, EVP and SSL functions and old ASN1 macros.
1704 *) BN_zero() only needs to set 'top' and 'neg' to zero for correct results,
1705 and this should never fail. So the return value from the use of
1706 BN_set_word() (which can fail due to needless expansion) is now deprecated;
1707 if OPENSSL_NO_DEPRECATED is defined, BN_zero() is a void macro.
1710 *) BN_CTX_get() should return zero-valued bignums, providing the same
1711 initialised value as BN_new().
1712 [Geoff Thorpe, suggested by Ulf Möller]
1714 *) Support for inhibitAnyPolicy certificate extension.
1717 *) An audit of the BIGNUM code is underway, for which debugging code is
1718 enabled when BN_DEBUG is defined. This makes stricter enforcements on what
1719 is considered valid when processing BIGNUMs, and causes execution to
1720 assert() when a problem is discovered. If BN_DEBUG_RAND is defined,
1721 further steps are taken to deliberately pollute unused data in BIGNUM
1722 structures to try and expose faulty code further on. For now, openssl will
1723 (in its default mode of operation) continue to tolerate the inconsistent
1724 forms that it has tolerated in the past, but authors and packagers should
1725 consider trying openssl and their own applications when compiled with
1726 these debugging symbols defined. It will help highlight potential bugs in
1727 their own code, and will improve the test coverage for OpenSSL itself. At
1728 some point, these tighter rules will become openssl's default to improve
1729 maintainability, though the assert()s and other overheads will remain only
1730 in debugging configurations. See bn.h for more details.
1731 [Geoff Thorpe, Nils Larsch, Ulf Möller]
1733 *) BN_CTX_init() has been deprecated, as BN_CTX is an opaque structure
1734 that can only be obtained through BN_CTX_new() (which implicitly
1735 initialises it). The presence of this function only made it possible
1736 to overwrite an existing structure (and cause memory leaks).
1739 *) Because of the callback-based approach for implementing LHASH as a
1740 template type, lh_insert() adds opaque objects to hash-tables and
1741 lh_doall() or lh_doall_arg() are typically used with a destructor callback
1742 to clean up those corresponding objects before destroying the hash table
1743 (and losing the object pointers). So some over-zealous constifications in
1744 LHASH have been relaxed so that lh_insert() does not take (nor store) the
1745 objects as "const" and the lh_doall[_arg] callback wrappers are not
1746 prototyped to have "const" restrictions on the object pointers they are
1747 given (and so aren't required to cast them away any more).
1750 *) The tmdiff.h API was so ugly and minimal that our own timing utility
1751 (speed) prefers to use its own implementation. The two implementations
1752 haven't been consolidated as yet (volunteers?) but the tmdiff API has had
1753 its object type properly exposed (MS_TM) instead of casting to/from "char
1754 *". This may still change yet if someone realises MS_TM and "ms_time_***"
1755 aren't necessarily the greatest nomenclatures - but this is what was used
1756 internally to the implementation so I've used that for now.
1759 *) Ensure that deprecated functions do not get compiled when
1760 OPENSSL_NO_DEPRECATED is defined. Some "openssl" subcommands and a few of
1761 the self-tests were still using deprecated key-generation functions so
1762 these have been updated also.
1765 *) Reorganise PKCS#7 code to separate the digest location functionality
1766 into PKCS7_find_digest(), digest addtion into PKCS7_bio_add_digest().
1767 New function PKCS7_set_digest() to set the digest type for PKCS#7
1768 digestedData type. Add additional code to correctly generate the
1769 digestedData type and add support for this type in PKCS7 initialization
1773 *) New function PKCS7_set0_type_other() this initializes a PKCS7
1774 structure of type "other".
1777 *) Fix prime generation loop in crypto/bn/bn_prime.pl by making
1778 sure the loop does correctly stop and breaking ("division by zero")
1779 modulus operations are not performed. The (pre-generated) prime
1780 table crypto/bn/bn_prime.h was already correct, but it could not be
1781 re-generated on some platforms because of the "division by zero"
1782 situation in the script.
1783 [Ralf S. Engelschall]
1785 *) Update support for ECC-based TLS ciphersuites according to
1786 draft-ietf-tls-ecc-03.txt: the KDF1 key derivation function with
1787 SHA-1 now is only used for "small" curves (where the
1788 representation of a field element takes up to 24 bytes); for
1789 larger curves, the field element resulting from ECDH is directly
1790 used as premaster secret.
1791 [Douglas Stebila (Sun Microsystems Laboratories)]
1793 *) Add code for kP+lQ timings to crypto/ec/ectest.c, and add SEC2
1794 curve secp160r1 to the tests.
1795 [Douglas Stebila (Sun Microsystems Laboratories)]
1797 *) Add the possibility to load symbols globally with DSO.
1798 [Götz Babin-Ebell <babin-ebell@trustcenter.de> via Richard Levitte]
1800 *) Add the functions ERR_set_mark() and ERR_pop_to_mark() for better
1801 control of the error stack.
1804 *) Add support for STORE in ENGINE.
1807 *) Add the STORE type. The intention is to provide a common interface
1808 to certificate and key stores, be they simple file-based stores, or
1809 HSM-type store, or LDAP stores, or...
1810 NOTE: The code is currently UNTESTED and isn't really used anywhere.
1813 *) Add a generic structure called OPENSSL_ITEM. This can be used to
1814 pass a list of arguments to any function as well as provide a way
1815 for a function to pass data back to the caller.
1818 *) Add the functions BUF_strndup() and BUF_memdup(). BUF_strndup()
1819 works like BUF_strdup() but can be used to duplicate a portion of
1820 a string. The copy gets NUL-terminated. BUF_memdup() duplicates
1824 *) Add the function sk_find_ex() which works like sk_find(), but will
1825 return an index to an element even if an exact match couldn't be
1826 found. The index is guaranteed to point at the element where the
1827 searched-for key would be inserted to preserve sorting order.
1830 *) Add the function OBJ_bsearch_ex() which works like OBJ_bsearch() but
1831 takes an extra flags argument for optional functionality. Currently,
1832 the following flags are defined:
1834 OBJ_BSEARCH_VALUE_ON_NOMATCH
1835 This one gets OBJ_bsearch_ex() to return a pointer to the first
1836 element where the comparing function returns a negative or zero
1839 OBJ_BSEARCH_FIRST_VALUE_ON_MATCH
1840 This one gets OBJ_bsearch_ex() to return a pointer to the first
1841 element where the comparing function returns zero. This is useful
1842 if there are more than one element where the comparing function
1846 *) Make it possible to create self-signed certificates with 'openssl ca'
1847 in such a way that the self-signed certificate becomes part of the
1848 CA database and uses the same mechanisms for serial number generation
1849 as all other certificate signing. The new flag '-selfsign' enables
1850 this functionality. Adapt CA.sh and CA.pl.in.
1853 *) Add functionality to check the public key of a certificate request
1854 against a given private. This is useful to check that a certificate
1855 request can be signed by that key (self-signing).
1858 *) Make it possible to have multiple active certificates with the same
1859 subject in the CA index file. This is done only if the keyword
1860 'unique_subject' is set to 'no' in the main CA section (default
1861 if 'CA_default') of the configuration file. The value is saved
1862 with the database itself in a separate index attribute file,
1863 named like the index file with '.attr' appended to the name.
1866 *) Generate muti valued AVAs using '+' notation in config files for
1870 *) Support for nameConstraints certificate extension.
1873 *) Support for policyConstraints certificate extension.
1876 *) Support for policyMappings certificate extension.
1879 *) Make sure the default DSA_METHOD implementation only uses its
1880 dsa_mod_exp() and/or bn_mod_exp() handlers if they are non-NULL,
1881 and change its own handlers to be NULL so as to remove unnecessary
1882 indirection. This lets alternative implementations fallback to the
1883 default implementation more easily.
1886 *) Support for directoryName in GeneralName related extensions
1890 *) Make it possible to link applications using Makefile.shared.
1891 Make that possible even when linking against static libraries!
1894 *) Support for single pass processing for S/MIME signing. This now
1895 means that S/MIME signing can be done from a pipe, in addition
1896 cleartext signing (multipart/signed type) is effectively streaming
1897 and the signed data does not need to be all held in memory.
1899 This is done with a new flag PKCS7_STREAM. When this flag is set
1900 PKCS7_sign() only initializes the PKCS7 structure and the actual signing
1901 is done after the data is output (and digests calculated) in
1902 SMIME_write_PKCS7().
1905 *) Add full support for -rpath/-R, both in shared libraries and
1906 applications, at least on the platforms where it's known how
1910 *) In crypto/ec/ec_mult.c, implement fast point multiplication with
1911 precomputation, based on wNAF splitting: EC_GROUP_precompute_mult()
1912 will now compute a table of multiples of the generator that
1913 makes subsequent invocations of EC_POINTs_mul() or EC_POINT_mul()
1914 faster (notably in the case of a single point multiplication,
1915 scalar * generator).
1916 [Nils Larsch, Bodo Moeller]
1918 *) IPv6 support for certificate extensions. The various extensions
1919 which use the IP:a.b.c.d can now take IPv6 addresses using the
1920 formats of RFC1884 2.2 . IPv6 addresses are now also displayed
1924 *) Added an ENGINE that implements RSA by performing private key
1925 exponentiations with the GMP library. The conversions to and from
1926 GMP's mpz_t format aren't optimised nor are any montgomery forms
1927 cached, and on x86 it appears OpenSSL's own performance has caught up.
1928 However there are likely to be other architectures where GMP could
1929 provide a boost. This ENGINE is not built in by default, but it can be
1930 specified at Configure time and should be accompanied by the necessary
1931 linker additions, eg;
1932 ./config -DOPENSSL_USE_GMP -lgmp
1935 *) "openssl engine" will not display ENGINE/DSO load failure errors when
1936 testing availability of engines with "-t" - the old behaviour is
1937 produced by increasing the feature's verbosity with "-tt".
1940 *) ECDSA routines: under certain error conditions uninitialized BN objects
1941 could be freed. Solution: make sure initialization is performed early
1942 enough. (Reported and fix supplied by Nils Larsch <nla@trustcenter.de>
1946 *) Key-generation can now be implemented in RSA_METHOD, DSA_METHOD
1947 and DH_METHOD (eg. by ENGINE implementations) to override the normal
1948 software implementations. For DSA and DH, parameter generation can
1949 also be overriden by providing the appropriate method callbacks.
1952 *) Change the "progress" mechanism used in key-generation and
1953 primality testing to functions that take a new BN_GENCB pointer in
1954 place of callback/argument pairs. The new API functions have "_ex"
1955 postfixes and the older functions are reimplemented as wrappers for
1956 the new ones. The OPENSSL_NO_DEPRECATED symbol can be used to hide
1957 declarations of the old functions to help (graceful) attempts to
1958 migrate to the new functions. Also, the new key-generation API
1959 functions operate on a caller-supplied key-structure and return
1960 success/failure rather than returning a key or NULL - this is to
1961 help make "keygen" another member function of RSA_METHOD etc.
1963 Example for using the new callback interface:
1965 int (*my_callback)(int a, int b, BN_GENCB *cb) = ...;
1969 BN_GENCB_set(&my_cb, my_callback, my_arg);
1971 return BN_is_prime_ex(some_bignum, BN_prime_checks, NULL, &cb);
1972 /* For the meaning of a, b in calls to my_callback(), see the
1973 * documentation of the function that calls the callback.
1974 * cb will point to my_cb; my_arg can be retrieved as cb->arg.
1975 * my_callback should return 1 if it wants BN_is_prime_ex()
1976 * to continue, or 0 to stop.
1981 *) Change the ZLIB compression method to be stateful, and make it
1982 available to TLS with the number defined in
1983 draft-ietf-tls-compression-04.txt.
1986 *) Add the ASN.1 structures and functions for CertificatePair, which
1987 is defined as follows (according to X.509_4thEditionDraftV6.pdf):
1989 CertificatePair ::= SEQUENCE {
1990 forward [0] Certificate OPTIONAL,
1991 reverse [1] Certificate OPTIONAL,
1992 -- at least one of the pair shall be present -- }
1994 Also implement the PEM functions to read and write certificate
1995 pairs, and defined the PEM tag as "CERTIFICATE PAIR".
1997 This needed to be defined, mostly for the sake of the LDAP
1998 attribute crossCertificatePair, but may prove useful elsewhere as
2002 *) Make it possible to inhibit symlinking of shared libraries in
2003 Makefile.shared, for Cygwin's sake.
2006 *) Extend the BIGNUM API by creating a function
2007 void BN_set_negative(BIGNUM *a, int neg);
2008 and a macro that behave like
2009 int BN_is_negative(const BIGNUM *a);
2011 to avoid the need to access 'a->neg' directly in applications.
2014 *) Implement fast modular reduction for pseudo-Mersenne primes
2015 used in NIST curves (crypto/bn/bn_nist.c, crypto/ec/ecp_nist.c).
2016 EC_GROUP_new_curve_GFp() will now automatically use this
2018 [Nils Larsch <nla@trustcenter.de>]
2020 *) Add new lock type (CRYPTO_LOCK_BN).
2023 *) Change the ENGINE framework to automatically load engines
2024 dynamically from specific directories unless they could be
2025 found to already be built in or loaded. Move all the
2026 current engines except for the cryptodev one to a new
2028 The engines in engines/ are built as shared libraries if
2029 the "shared" options was given to ./Configure or ./config.
2030 Otherwise, they are inserted in libcrypto.a.
2031 /usr/local/ssl/engines is the default directory for dynamic
2032 engines, but that can be overriden at configure time through
2033 the usual use of --prefix and/or --openssldir, and at run
2034 time with the environment variable OPENSSL_ENGINES.
2035 [Geoff Thorpe and Richard Levitte]
2037 *) Add Makefile.shared, a helper makefile to build shared
2038 libraries. Addapt Makefile.org.
2041 *) Add version info to Win32 DLLs.
2042 [Peter 'Luna' Runestig" <peter@runestig.com>]
2044 *) Add new 'medium level' PKCS#12 API. Certificates and keys
2045 can be added using this API to created arbitrary PKCS#12
2046 files while avoiding the low level API.
2048 New options to PKCS12_create(), key or cert can be NULL and
2049 will then be omitted from the output file. The encryption
2050 algorithm NIDs can be set to -1 for no encryption, the mac
2051 iteration count can be set to 0 to omit the mac.
2053 Enhance pkcs12 utility by making the -nokeys and -nocerts
2054 options work when creating a PKCS#12 file. New option -nomac
2055 to omit the mac, NONE can be set for an encryption algorithm.
2056 New code is modified to use the enhanced PKCS12_create()
2057 instead of the low level API.
2060 *) Extend ASN1 encoder to support indefinite length constructed
2061 encoding. This can output sequences tags and octet strings in
2062 this form. Modify pk7_asn1.c to support indefinite length
2063 encoding. This is experimental and needs additional code to
2064 be useful, such as an ASN1 bio and some enhanced streaming
2067 Extend template encode functionality so that tagging is passed
2068 down to the template encoder.
2071 *) Let 'openssl req' fail if an argument to '-newkey' is not
2072 recognized instead of using RSA as a default.
2075 *) Add support for ECC-based ciphersuites from draft-ietf-tls-ecc-01.txt.
2076 As these are not official, they are not included in "ALL";
2077 the "ECCdraft" ciphersuite group alias can be used to select them.
2078 [Vipul Gupta and Sumit Gupta (Sun Microsystems Laboratories)]
2080 *) Add ECDH engine support.
2081 [Nils Gura and Douglas Stebila (Sun Microsystems Laboratories)]
2083 *) Add ECDH in new directory crypto/ecdh/.
2084 [Douglas Stebila (Sun Microsystems Laboratories)]
2086 *) Let BN_rand_range() abort with an error after 100 iterations
2087 without success (which indicates a broken PRNG).
2090 *) Change BN_mod_sqrt() so that it verifies that the input value
2091 is really the square of the return value. (Previously,
2092 BN_mod_sqrt would show GIGO behaviour.)
2095 *) Add named elliptic curves over binary fields from X9.62, SECG,
2096 and WAP/WTLS; add OIDs that were still missing.
2098 [Sheueling Chang Shantz and Douglas Stebila
2099 (Sun Microsystems Laboratories)]
2101 *) Extend the EC library for elliptic curves over binary fields
2102 (new files ec2_smpl.c, ec2_smpt.c, ec2_mult.c in crypto/ec/).
2105 EC_GF2m_simple_method
2109 EC_GROUP_new_curve_GF2m
2110 EC_GROUP_set_curve_GF2m
2111 EC_GROUP_get_curve_GF2m
2112 EC_POINT_set_affine_coordinates_GF2m
2113 EC_POINT_get_affine_coordinates_GF2m
2114 EC_POINT_set_compressed_coordinates_GF2m
2116 Point compression for binary fields is disabled by default for
2117 patent reasons (compile with OPENSSL_EC_BIN_PT_COMP defined to
2120 As binary polynomials are represented as BIGNUMs, various members
2121 of the EC_GROUP and EC_POINT data structures can be shared
2122 between the implementations for prime fields and binary fields;
2123 the above ..._GF2m functions (except for EX_GROUP_new_curve_GF2m)
2124 are essentially identical to their ..._GFp counterparts.
2125 (For simplicity, the '..._GFp' prefix has been dropped from
2126 various internal method names.)
2128 An internal 'field_div' method (similar to 'field_mul' and
2129 'field_sqr') has been added; this is used only for binary fields.
2131 [Sheueling Chang Shantz and Douglas Stebila
2132 (Sun Microsystems Laboratories)]
2134 *) Optionally dispatch EC_POINT_mul(), EC_POINT_precompute_mult()
2135 through methods ('mul', 'precompute_mult').
2137 The generic implementations (now internally called 'ec_wNAF_mul'
2138 and 'ec_wNAF_precomputed_mult') remain the default if these
2139 methods are undefined.
2141 [Sheueling Chang Shantz and Douglas Stebila
2142 (Sun Microsystems Laboratories)]
2144 *) New function EC_GROUP_get_degree, which is defined through
2145 EC_METHOD. For curves over prime fields, this returns the bit
2146 length of the modulus.
2148 [Sheueling Chang Shantz and Douglas Stebila
2149 (Sun Microsystems Laboratories)]
2151 *) New functions EC_GROUP_dup, EC_POINT_dup.
2152 (These simply call ..._new and ..._copy).
2154 [Sheueling Chang Shantz and Douglas Stebila
2155 (Sun Microsystems Laboratories)]
2157 *) Add binary polynomial arithmetic software in crypto/bn/bn_gf2m.c.
2158 Polynomials are represented as BIGNUMs (where the sign bit is not
2159 used) in the following functions [macros]:
2162 BN_GF2m_sub [= BN_GF2m_add]
2163 BN_GF2m_mod [wrapper for BN_GF2m_mod_arr]
2164 BN_GF2m_mod_mul [wrapper for BN_GF2m_mod_mul_arr]
2165 BN_GF2m_mod_sqr [wrapper for BN_GF2m_mod_sqr_arr]
2167 BN_GF2m_mod_exp [wrapper for BN_GF2m_mod_exp_arr]
2168 BN_GF2m_mod_sqrt [wrapper for BN_GF2m_mod_sqrt_arr]
2169 BN_GF2m_mod_solve_quad [wrapper for BN_GF2m_mod_solve_quad_arr]
2170 BN_GF2m_cmp [= BN_ucmp]
2172 (Note that only the 'mod' functions are actually for fields GF(2^m).
2173 BN_GF2m_add() is misnomer, but this is for the sake of consistency.)
2175 For some functions, an the irreducible polynomial defining a
2176 field can be given as an 'unsigned int[]' with strictly
2177 decreasing elements giving the indices of those bits that are set;
2178 i.e., p[] represents the polynomial
2179 f(t) = t^p[0] + t^p[1] + ... + t^p[k]
2181 p[0] > p[1] > ... > p[k] = 0.
2182 This applies to the following functions:
2187 BN_GF2m_mod_inv_arr [wrapper for BN_GF2m_mod_inv]
2188 BN_GF2m_mod_div_arr [wrapper for BN_GF2m_mod_div]
2190 BN_GF2m_mod_sqrt_arr
2191 BN_GF2m_mod_solve_quad_arr
2195 Conversion can be performed by the following functions:
2200 bntest.c has additional tests for binary polynomial arithmetic.
2202 Two implementations for BN_GF2m_mod_div() are available.
2203 The default algorithm simply uses BN_GF2m_mod_inv() and
2204 BN_GF2m_mod_mul(). The alternative algorithm is compiled in only
2205 if OPENSSL_SUN_GF2M_DIV is defined (patent pending; read the
2206 copyright notice in crypto/bn/bn_gf2m.c before enabling it).
2208 [Sheueling Chang Shantz and Douglas Stebila
2209 (Sun Microsystems Laboratories)]
2211 *) Add new error code 'ERR_R_DISABLED' that can be used when some
2212 functionality is disabled at compile-time.
2213 [Douglas Stebila <douglas.stebila@sun.com>]
2215 *) Change default behaviour of 'openssl asn1parse' so that more
2216 information is visible when viewing, e.g., a certificate:
2218 Modify asn1_parse2 (crypto/asn1/asn1_par.c) so that in non-'dump'
2219 mode the content of non-printable OCTET STRINGs is output in a
2220 style similar to INTEGERs, but with '[HEX DUMP]' prepended to
2221 avoid the appearance of a printable string.
2222 [Nils Larsch <nla@trustcenter.de>]
2224 *) Add 'asn1_flag' and 'asn1_form' member to EC_GROUP with access
2226 EC_GROUP_set_asn1_flag()
2227 EC_GROUP_get_asn1_flag()
2228 EC_GROUP_set_point_conversion_form()
2229 EC_GROUP_get_point_conversion_form()
2230 These control ASN1 encoding details:
2231 - Curves (i.e., groups) are encoded explicitly unless asn1_flag
2232 has been set to OPENSSL_EC_NAMED_CURVE.
2233 - Points are encoded in uncompressed form by default; options for
2234 asn1_for are as for point2oct, namely
2235 POINT_CONVERSION_COMPRESSED
2236 POINT_CONVERSION_UNCOMPRESSED
2237 POINT_CONVERSION_HYBRID
2239 Also add 'seed' and 'seed_len' members to EC_GROUP with access
2242 EC_GROUP_get0_seed()
2243 EC_GROUP_get_seed_len()
2244 This is used only for ASN1 purposes (so far).
2245 [Nils Larsch <nla@trustcenter.de>]
2247 *) Add 'field_type' member to EC_METHOD, which holds the NID
2248 of the appropriate field type OID. The new function
2249 EC_METHOD_get_field_type() returns this value.
2250 [Nils Larsch <nla@trustcenter.de>]
2255 EC_POINT_point2hex()
2256 EC_POINT_hex2point()
2257 providing useful interfaces to EC_POINT_point2oct() and
2258 EC_POINT_oct2point().
2259 [Nils Larsch <nla@trustcenter.de>]
2261 *) Change internals of the EC library so that the functions
2262 EC_GROUP_set_generator()
2263 EC_GROUP_get_generator()
2264 EC_GROUP_get_order()
2265 EC_GROUP_get_cofactor()
2266 are implemented directly in crypto/ec/ec_lib.c and not dispatched
2267 to methods, which would lead to unnecessary code duplication when
2268 adding different types of curves.
2269 [Nils Larsch <nla@trustcenter.de> with input by Bodo Moeller]
2271 *) Implement compute_wNAF (crypto/ec/ec_mult.c) without BIGNUM
2272 arithmetic, and such that modified wNAFs are generated
2273 (which avoid length expansion in many cases).
2276 *) Add a function EC_GROUP_check_discriminant() (defined via
2277 EC_METHOD) that verifies that the curve discriminant is non-zero.
2279 Add a function EC_GROUP_check() that makes some sanity tests
2280 on a EC_GROUP, its generator and order. This includes
2281 EC_GROUP_check_discriminant().
2282 [Nils Larsch <nla@trustcenter.de>]
2284 *) Add ECDSA in new directory crypto/ecdsa/.
2286 Add applications 'openssl ecparam' and 'openssl ecdsa'
2287 (these are based on 'openssl dsaparam' and 'openssl dsa').
2289 ECDSA support is also included in various other files across the
2290 library. Most notably,
2291 - 'openssl req' now has a '-newkey ecdsa:file' option;
2292 - EVP_PKCS82PKEY (crypto/evp/evp_pkey.c) now can handle ECDSA;
2293 - X509_PUBKEY_get (crypto/asn1/x_pubkey.c) and
2294 d2i_PublicKey (crypto/asn1/d2i_pu.c) have been modified to make
2295 them suitable for ECDSA where domain parameters must be
2296 extracted before the specific public key;
2297 - ECDSA engine support has been added.
2298 [Nils Larsch <nla@trustcenter.de>]
2300 *) Include some named elliptic curves, and add OIDs from X9.62,
2301 SECG, and WAP/WTLS. Each curve can be obtained from the new
2303 EC_GROUP_new_by_curve_name(),
2304 and the list of available named curves can be obtained with
2305 EC_get_builtin_curves().
2306 Also add a 'curve_name' member to EC_GROUP objects, which can be
2308 EC_GROUP_set_curve_name()
2309 EC_GROUP_get_curve_name()
2310 [Nils Larsch <larsch@trustcenter.de, Bodo Moeller]
2312 *) Remove a few calls to bn_wexpand() in BN_sqr() (the one in there
2313 was actually never needed) and in BN_mul(). The removal in BN_mul()
2314 required a small change in bn_mul_part_recursive() and the addition
2315 of the functions bn_cmp_part_words(), bn_sub_part_words() and
2316 bn_add_part_words(), which do the same thing as bn_cmp_words(),
2317 bn_sub_words() and bn_add_words() except they take arrays with
2321 Changes between 0.9.7m and 0.9.7n [xx XXX xxxx]
2323 *) In the SSL/TLS server implementation, be strict about session ID
2324 context matching (which matters if an application uses a single
2325 external cache for different purposes). Previously,
2326 out-of-context reuse was forbidden only if SSL_VERIFY_PEER was
2327 set. This did ensure strict client verification, but meant that,
2328 with applications using a single external cache for quite
2329 different requirements, clients could circumvent ciphersuite
2330 restrictions for a given session ID context by starting a session
2331 in a different context.
2334 Changes between 0.9.7l and 0.9.7m [23 Feb 2007]
2336 *) Cleanse PEM buffers before freeing them since they may contain
2338 [Benjamin Bennett <ben@psc.edu>]
2340 *) Include "!eNULL" in SSL_DEFAULT_CIPHER_LIST to make sure that
2341 a ciphersuite string such as "DEFAULT:RSA" cannot enable
2342 authentication-only ciphersuites.
2345 *) Since AES128 and AES256 share a single mask bit in the logic of
2346 ssl/ssl_ciph.c, the code for masking out disabled ciphers needs a
2347 kludge to work properly if AES128 is available and AES256 isn't.
2350 *) Expand security boundary to match 1.1.1 module.
2353 *) Remove redundant features: hash file source, editing of test vectors
2354 modify fipsld to use external fips_premain.c signature.
2357 *) New perl script mkfipsscr.pl to create shell scripts or batch files to
2358 run algorithm test programs.
2361 *) Make algorithm test programs more tolerant of whitespace.
2364 *) Have SSL/TLS server implementation tolerate "mismatched" record
2365 protocol version while receiving ClientHello even if the
2366 ClientHello is fragmented. (The server can't insist on the
2367 particular protocol version it has chosen before the ServerHello
2368 message has informed the client about his choice.)
2371 *) Load error codes if they are not already present instead of using a
2372 static variable. This allows them to be cleanly unloaded and reloaded.
2375 Changes between 0.9.7k and 0.9.7l [28 Sep 2006]
2377 *) Introduce limits to prevent malicious keys being able to
2378 cause a denial of service. (CVE-2006-2940)
2379 [Steve Henson, Bodo Moeller]
2381 *) Fix ASN.1 parsing of certain invalid structures that can result
2382 in a denial of service. (CVE-2006-2937) [Steve Henson]
2384 *) Fix buffer overflow in SSL_get_shared_ciphers() function.
2385 (CVE-2006-3738) [Tavis Ormandy and Will Drewry, Google Security Team]
2387 *) Fix SSL client code which could crash if connecting to a
2388 malicious SSLv2 server. (CVE-2006-4343)
2389 [Tavis Ormandy and Will Drewry, Google Security Team]
2391 *) Change ciphersuite string processing so that an explicit
2392 ciphersuite selects this one ciphersuite (so that "AES256-SHA"
2393 will no longer include "AES128-SHA"), and any other similar
2394 ciphersuite (same bitmap) from *other* protocol versions (so that
2395 "RC4-MD5" will still include both the SSL 2.0 ciphersuite and the
2396 SSL 3.0/TLS 1.0 ciphersuite). This is a backport combining
2397 changes from 0.9.8b and 0.9.8d.
2400 Changes between 0.9.7j and 0.9.7k [05 Sep 2006]
2402 *) Avoid PKCS #1 v1.5 signature attack discovered by Daniel Bleichenbacher
2403 (CVE-2006-4339) [Ben Laurie and Google Security Team]
2405 *) Change the Unix randomness entropy gathering to use poll() when
2406 possible instead of select(), since the latter has some
2407 undesirable limitations.
2408 [Darryl Miles via Richard Levitte and Bodo Moeller]
2410 *) Disable rogue ciphersuites:
2412 - SSLv2 0x08 0x00 0x80 ("RC4-64-MD5")
2413 - SSLv3/TLSv1 0x00 0x61 ("EXP1024-RC2-CBC-MD5")
2414 - SSLv3/TLSv1 0x00 0x60 ("EXP1024-RC4-MD5")
2416 The latter two were purportedly from
2417 draft-ietf-tls-56-bit-ciphersuites-0[01].txt, but do not really
2420 Also deactive the remaining ciphersuites from
2421 draft-ietf-tls-56-bit-ciphersuites-01.txt. These are just as
2422 unofficial, and the ID has long expired.
2425 *) Fix RSA blinding Heisenbug (problems sometimes occured on
2426 dual-core machines) and other potential thread-safety issues.
2429 Changes between 0.9.7i and 0.9.7j [04 May 2006]
2431 *) Adapt fipsld and the build system to link against the validated FIPS
2432 module in FIPS mode.
2435 *) Fixes for VC++ 2005 build under Windows.
2438 *) Add new Windows build target VC-32-GMAKE for VC++. This uses GNU make
2439 from a Windows bash shell such as MSYS. It is autodetected from the
2440 "config" script when run from a VC++ environment. Modify standard VC++
2441 build to use fipscanister.o from the GNU make build.
2444 Changes between 0.9.7h and 0.9.7i [14 Oct 2005]
2446 *) Wrapped the definition of EVP_MAX_MD_SIZE in a #ifdef OPENSSL_FIPS.
2447 The value now differs depending on if you build for FIPS or not.
2448 BEWARE! A program linked with a shared FIPSed libcrypto can't be
2449 safely run with a non-FIPSed libcrypto, as it may crash because of
2450 the difference induced by this change.
2453 Changes between 0.9.7g and 0.9.7h [11 Oct 2005]
2455 *) Remove the functionality of SSL_OP_MSIE_SSLV2_RSA_PADDING
2456 (part of SSL_OP_ALL). This option used to disable the
2457 countermeasure against man-in-the-middle protocol-version
2458 rollback in the SSL 2.0 server implementation, which is a bad
2459 idea. (CVE-2005-2969)
2461 [Bodo Moeller; problem pointed out by Yutaka Oiwa (Research Center
2462 for Information Security, National Institute of Advanced Industrial
2463 Science and Technology [AIST], Japan)]
2465 *) Minimal support for X9.31 signatures and PSS padding modes. This is
2466 mainly for FIPS compliance and not fully integrated at this stage.
2469 *) For DSA signing, unless DSA_FLAG_NO_EXP_CONSTTIME is set, perform
2470 the exponentiation using a fixed-length exponent. (Otherwise,
2471 the information leaked through timing could expose the secret key
2472 after many signatures; cf. Bleichenbacher's attack on DSA with
2476 *) Make a new fixed-window mod_exp implementation the default for
2477 RSA, DSA, and DH private-key operations so that the sequence of
2478 squares and multiplies and the memory access pattern are
2479 independent of the particular secret key. This will mitigate
2480 cache-timing and potential related attacks.
2482 BN_mod_exp_mont_consttime() is the new exponentiation implementation,
2483 and this is automatically used by BN_mod_exp_mont() if the new flag
2484 BN_FLG_EXP_CONSTTIME is set for the exponent. RSA, DSA, and DH
2485 will use this BN flag for private exponents unless the flag
2486 RSA_FLAG_NO_EXP_CONSTTIME, DSA_FLAG_NO_EXP_CONSTTIME, or
2487 DH_FLAG_NO_EXP_CONSTTIME, respectively, is set.
2489 [Matthew D Wood (Intel Corp), with some changes by Bodo Moeller]
2491 *) Change the client implementation for SSLv23_method() and
2492 SSLv23_client_method() so that is uses the SSL 3.0/TLS 1.0
2493 Client Hello message format if the SSL_OP_NO_SSLv2 option is set.
2494 (Previously, the SSL 2.0 backwards compatible Client Hello
2495 message format would be used even with SSL_OP_NO_SSLv2.)
2498 *) Add support for smime-type MIME parameter in S/MIME messages which some
2502 *) New function BN_MONT_CTX_set_locked() to set montgomery parameters in
2503 a threadsafe manner. Modify rsa code to use new function and add calls
2504 to dsa and dh code (which had race conditions before).
2507 *) Include the fixed error library code in the C error file definitions
2508 instead of fixing them up at runtime. This keeps the error code
2509 structures constant.
2512 Changes between 0.9.7f and 0.9.7g [11 Apr 2005]
2514 [NB: OpenSSL 0.9.7h and later 0.9.7 patch levels were released after
2517 *) Fixes for newer kerberos headers. NB: the casts are needed because
2518 the 'length' field is signed on one version and unsigned on another
2519 with no (?) obvious way to tell the difference, without these VC++
2520 complains. Also the "definition" of FAR (blank) is no longer included
2521 nor is the error ENOMEM. KRB5_PRIVATE has to be set to 1 to pick up
2522 some needed definitions.
2525 *) Undo Cygwin change.
2528 *) Added support for proxy certificates according to RFC 3820.
2529 Because they may be a security thread to unaware applications,
2530 they must be explicitely allowed in run-time. See
2531 docs/HOWTO/proxy_certificates.txt for further information.
2534 Changes between 0.9.7e and 0.9.7f [22 Mar 2005]
2536 *) Use (SSL_RANDOM_VALUE - 4) bytes of pseudo random data when generating
2537 server and client random values. Previously
2538 (SSL_RANDOM_VALUE - sizeof(time_t)) would be used which would result in
2539 less random data when sizeof(time_t) > 4 (some 64 bit platforms).
2541 This change has negligible security impact because:
2543 1. Server and client random values still have 24 bytes of pseudo random
2546 2. Server and client random values are sent in the clear in the initial
2549 3. The master secret is derived using the premaster secret (48 bytes in
2550 size for static RSA ciphersuites) as well as client server and random
2553 The OpenSSL team would like to thank the UK NISCC for bringing this issue
2556 [Stephen Henson, reported by UK NISCC]
2558 *) Use Windows randomness collection on Cygwin.
2561 *) Fix hang in EGD/PRNGD query when communication socket is closed
2562 prematurely by EGD/PRNGD.
2563 [Darren Tucker <dtucker@zip.com.au> via Lutz Jänicke, resolves #1014]
2565 *) Prompt for pass phrases when appropriate for PKCS12 input format.
2568 *) Back-port of selected performance improvements from development
2569 branch, as well as improved support for PowerPC platforms.
2572 *) Add lots of checks for memory allocation failure, error codes to indicate
2573 failure and freeing up memory if a failure occurs.
2574 [Nauticus Networks SSL Team <openssl@nauticusnet.com>, Steve Henson]
2576 *) Add new -passin argument to dgst.
2579 *) Perform some character comparisons of different types in X509_NAME_cmp:
2580 this is needed for some certificates that reencode DNs into UTF8Strings
2581 (in violation of RFC3280) and can't or wont issue name rollover
2585 *) Make an explicit check during certificate validation to see that
2586 the CA setting in each certificate on the chain is correct. As a
2587 side effect always do the following basic checks on extensions,
2588 not just when there's an associated purpose to the check:
2590 - if there is an unhandled critical extension (unless the user
2591 has chosen to ignore this fault)
2592 - if the path length has been exceeded (if one is set at all)
2593 - that certain extensions fit the associated purpose (if one has
2597 Changes between 0.9.7d and 0.9.7e [25 Oct 2004]
2599 *) Avoid a race condition when CRLs are checked in a multi threaded
2600 environment. This would happen due to the reordering of the revoked
2601 entries during signature checking and serial number lookup. Now the
2602 encoding is cached and the serial number sort performed under a lock.
2603 Add new STACK function sk_is_sorted().
2606 *) Add Delta CRL to the extension code.
2609 *) Various fixes to s3_pkt.c so alerts are sent properly.
2610 [David Holmes <d.holmes@f5.com>]
2612 *) Reduce the chances of duplicate issuer name and serial numbers (in
2613 violation of RFC3280) using the OpenSSL certificate creation utilities.
2614 This is done by creating a random 64 bit value for the initial serial
2615 number when a serial number file is created or when a self signed
2616 certificate is created using 'openssl req -x509'. The initial serial
2617 number file is created using 'openssl x509 -next_serial' in CA.pl
2618 rather than being initialized to 1.
2621 Changes between 0.9.7c and 0.9.7d [17 Mar 2004]
2623 *) Fix null-pointer assignment in do_change_cipher_spec() revealed
2624 by using the Codenomicon TLS Test Tool (CVE-2004-0079)
2625 [Joe Orton, Steve Henson]
2627 *) Fix flaw in SSL/TLS handshaking when using Kerberos ciphersuites
2629 [Joe Orton, Steve Henson]
2631 *) Make it possible to have multiple active certificates with the same
2632 subject in the CA index file. This is done only if the keyword
2633 'unique_subject' is set to 'no' in the main CA section (default
2634 if 'CA_default') of the configuration file. The value is saved
2635 with the database itself in a separate index attribute file,
2636 named like the index file with '.attr' appended to the name.
2639 *) X509 verify fixes. Disable broken certificate workarounds when
2640 X509_V_FLAGS_X509_STRICT is set. Check CRL issuer has cRLSign set if
2641 keyUsage extension present. Don't accept CRLs with unhandled critical
2642 extensions: since verify currently doesn't process CRL extensions this
2643 rejects a CRL with *any* critical extensions. Add new verify error codes
2647 *) When creating an OCSP nonce use an OCTET STRING inside the extnValue.
2648 A clarification of RFC2560 will require the use of OCTET STRINGs and
2649 some implementations cannot handle the current raw format. Since OpenSSL
2650 copies and compares OCSP nonces as opaque blobs without any attempt at
2651 parsing them this should not create any compatibility issues.
2654 *) New md flag EVP_MD_CTX_FLAG_REUSE this allows md_data to be reused when
2655 calling EVP_MD_CTX_copy_ex() to avoid calling OPENSSL_malloc(). Without
2656 this HMAC (and other) operations are several times slower than OpenSSL
2660 *) Print out GeneralizedTime and UTCTime in ASN1_STRING_print_ex().
2661 [Peter Sylvester <Peter.Sylvester@EdelWeb.fr>]
2663 *) Use the correct content when signing type "other".
2666 Changes between 0.9.7b and 0.9.7c [30 Sep 2003]
2668 *) Fix various bugs revealed by running the NISCC test suite:
2670 Stop out of bounds reads in the ASN1 code when presented with
2671 invalid tags (CVE-2003-0543 and CVE-2003-0544).
2673 Free up ASN1_TYPE correctly if ANY type is invalid (CVE-2003-0545).
2675 If verify callback ignores invalid public key errors don't try to check
2676 certificate signature with the NULL public key.
2680 *) New -ignore_err option in ocsp application to stop the server
2681 exiting on the first error in a request.
2684 *) In ssl3_accept() (ssl/s3_srvr.c) only accept a client certificate
2685 if the server requested one: as stated in TLS 1.0 and SSL 3.0
2689 *) In ssl3_get_client_hello() (ssl/s3_srvr.c), tolerate additional
2690 extra data after the compression methods not only for TLS 1.0
2691 but also for SSL 3.0 (as required by the specification).
2692 [Bodo Moeller; problem pointed out by Matthias Loepfe]
2694 *) Change X509_certificate_type() to mark the key as exported/exportable
2695 when it's 512 *bits* long, not 512 bytes.
2698 *) Change AES_cbc_encrypt() so it outputs exact multiple of
2699 blocks during encryption.
2702 *) Various fixes to base64 BIO and non blocking I/O. On write
2703 flushes were not handled properly if the BIO retried. On read
2704 data was not being buffered properly and had various logic bugs.
2705 This also affects blocking I/O when the data being decoded is a
2709 *) Various S/MIME bugfixes and compatibility changes:
2710 output correct application/pkcs7 MIME type if
2711 PKCS7_NOOLDMIMETYPE is set. Tolerate some broken signatures.
2712 Output CR+LF for EOL if PKCS7_CRLFEOL is set (this makes opening
2713 of files as .eml work). Correctly handle very long lines in MIME
2717 Changes between 0.9.7a and 0.9.7b [10 Apr 2003]
2719 *) Countermeasure against the Klima-Pokorny-Rosa extension of
2720 Bleichbacher's attack on PKCS #1 v1.5 padding: treat
2721 a protocol version number mismatch like a decryption error
2722 in ssl3_get_client_key_exchange (ssl/s3_srvr.c).
2725 *) Turn on RSA blinding by default in the default implementation
2726 to avoid a timing attack. Applications that don't want it can call
2727 RSA_blinding_off() or use the new flag RSA_FLAG_NO_BLINDING.
2728 They would be ill-advised to do so in most cases.
2729 [Ben Laurie, Steve Henson, Geoff Thorpe, Bodo Moeller]
2731 *) Change RSA blinding code so that it works when the PRNG is not
2732 seeded (in this case, the secret RSA exponent is abused as
2733 an unpredictable seed -- if it is not unpredictable, there
2734 is no point in blinding anyway). Make RSA blinding thread-safe
2735 by remembering the creator's thread ID in rsa->blinding and
2736 having all other threads use local one-time blinding factors
2737 (this requires more computation than sharing rsa->blinding, but
2738 avoids excessive locking; and if an RSA object is not shared
2739 between threads, blinding will still be very fast).
2742 *) Fixed a typo bug that would cause ENGINE_set_default() to set an
2743 ENGINE as defaults for all supported algorithms irrespective of
2744 the 'flags' parameter. 'flags' is now honoured, so applications
2745 should make sure they are passing it correctly.
2748 *) Target "mingw" now allows native Windows code to be generated in
2749 the Cygwin environment as well as with the MinGW compiler.
2752 Changes between 0.9.7 and 0.9.7a [19 Feb 2003]
2754 *) In ssl3_get_record (ssl/s3_pkt.c), minimize information leaked
2755 via timing by performing a MAC computation even if incorrrect
2756 block cipher padding has been found. This is a countermeasure
2757 against active attacks where the attacker has to distinguish
2758 between bad padding and a MAC verification error. (CVE-2003-0078)
2760 [Bodo Moeller; problem pointed out by Brice Canvel (EPFL),
2761 Alain Hiltgen (UBS), Serge Vaudenay (EPFL), and
2762 Martin Vuagnoux (EPFL, Ilion)]
2764 *) Make the no-err option work as intended. The intention with no-err
2765 is not to have the whole error stack handling routines removed from
2766 libcrypto, it's only intended to remove all the function name and
2767 reason texts, thereby removing some of the footprint that may not
2768 be interesting if those errors aren't displayed anyway.
2770 NOTE: it's still possible for any application or module to have it's
2771 own set of error texts inserted. The routines are there, just not
2772 used by default when no-err is given.
2775 *) Add support for FreeBSD on IA64.
2776 [dirk.meyer@dinoex.sub.org via Richard Levitte, resolves #454]
2778 *) Adjust DES_cbc_cksum() so it returns the same value as the MIT
2779 Kerberos function mit_des_cbc_cksum(). Before this change,
2780 the value returned by DES_cbc_cksum() was like the one from
2781 mit_des_cbc_cksum(), except the bytes were swapped.
2782 [Kevin Greaney <Kevin.Greaney@hp.com> and Richard Levitte]
2784 *) Allow an application to disable the automatic SSL chain building.
2785 Before this a rather primitive chain build was always performed in
2786 ssl3_output_cert_chain(): an application had no way to send the
2787 correct chain if the automatic operation produced an incorrect result.
2789 Now the chain builder is disabled if either:
2791 1. Extra certificates are added via SSL_CTX_add_extra_chain_cert().
2793 2. The mode flag SSL_MODE_NO_AUTO_CHAIN is set.
2795 The reasoning behind this is that an application would not want the
2796 auto chain building to take place if extra chain certificates are
2797 present and it might also want a means of sending no additional
2798 certificates (for example the chain has two certificates and the
2802 *) Add the possibility to build without the ENGINE framework.
2803 [Steven Reddie <smr@essemer.com.au> via Richard Levitte]
2805 *) Under Win32 gmtime() can return NULL: check return value in
2806 OPENSSL_gmtime(). Add error code for case where gmtime() fails.
2809 *) DSA routines: under certain error conditions uninitialized BN objects
2810 could be freed. Solution: make sure initialization is performed early
2811 enough. (Reported and fix supplied by Ivan D Nestlerode <nestler@MIT.EDU>,
2812 Nils Larsch <nla@trustcenter.de> via PR#459)
2815 *) Another fix for SSLv2 session ID handling: the session ID was incorrectly
2816 checked on reconnect on the client side, therefore session resumption
2817 could still fail with a "ssl session id is different" error. This
2818 behaviour is masked when SSL_OP_ALL is used due to
2819 SSL_OP_MICROSOFT_SESS_ID_BUG being set.
2820 Behaviour observed by Crispin Flowerday <crispin@flowerday.cx> as
2821 followup to PR #377.
2824 *) IA-32 assembler support enhancements: unified ELF targets, support
2825 for SCO/Caldera platforms, fix for Cygwin shared build.
2828 *) Add support for FreeBSD on sparc64. As a consequence, support for
2829 FreeBSD on non-x86 processors is separate from x86 processors on
2830 the config script, much like the NetBSD support.
2831 [Richard Levitte & Kris Kennaway <kris@obsecurity.org>]
2833 Changes between 0.9.6h and 0.9.7 [31 Dec 2002]
2835 [NB: OpenSSL 0.9.6i and later 0.9.6 patch levels were released after
2838 *) Fix session ID handling in SSLv2 client code: the SERVER FINISHED
2839 code (06) was taken as the first octet of the session ID and the last
2840 octet was ignored consequently. As a result SSLv2 client side session
2841 caching could not have worked due to the session ID mismatch between
2843 Behaviour observed by Crispin Flowerday <crispin@flowerday.cx> as
2847 *) Change the declaration of needed Kerberos libraries to use EX_LIBS
2848 instead of the special (and badly supported) LIBKRB5. LIBKRB5 is
2852 *) The hw_ncipher.c engine requires dynamic locks. Unfortunately, it
2853 seems that in spite of existing for more than a year, many application
2854 author have done nothing to provide the necessary callbacks, which
2855 means that this particular engine will not work properly anywhere.
2856 This is a very unfortunate situation which forces us, in the name
2857 of usability, to give the hw_ncipher.c a static lock, which is part
2859 NOTE: This is for the 0.9.7 series ONLY. This hack will never
2860 appear in 0.9.8 or later. We EXPECT application authors to have
2861 dealt properly with this when 0.9.8 is released (unless we actually
2862 make such changes in the libcrypto locking code that changes will
2863 have to be made anyway).
2866 *) In asn1_d2i_read_bio() repeatedly call BIO_read() until all content
2867 octets have been read, EOF or an error occurs. Without this change
2868 some truncated ASN1 structures will not produce an error.
2871 *) Disable Heimdal support, since it hasn't been fully implemented.
2872 Still give the possibility to force the use of Heimdal, but with
2873 warnings and a request that patches get sent to openssl-dev.
2876 *) Add the VC-CE target, introduce the WINCE sysname, and add
2877 INSTALL.WCE and appropriate conditionals to make it build.
2878 [Steven Reddie <smr@essemer.com.au> via Richard Levitte]
2880 *) Change the DLL names for Cygwin to cygcrypto-x.y.z.dll and
2881 cygssl-x.y.z.dll, where x, y and z are the major, minor and
2882 edit numbers of the version.
2883 [Corinna Vinschen <vinschen@redhat.com> and Richard Levitte]
2885 *) Introduce safe string copy and catenation functions
2886 (BUF_strlcpy() and BUF_strlcat()).
2887 [Ben Laurie (CHATS) and Richard Levitte]
2889 *) Avoid using fixed-size buffers for one-line DNs.
2890 [Ben Laurie (CHATS)]
2892 *) Add BUF_MEM_grow_clean() to avoid information leakage when
2893 resizing buffers containing secrets, and use where appropriate.
2894 [Ben Laurie (CHATS)]
2896 *) Avoid using fixed size buffers for configuration file location.
2897 [Ben Laurie (CHATS)]
2899 *) Avoid filename truncation for various CA files.
2900 [Ben Laurie (CHATS)]
2902 *) Use sizeof in preference to magic numbers.
2903 [Ben Laurie (CHATS)]
2905 *) Avoid filename truncation in cert requests.
2906 [Ben Laurie (CHATS)]
2908 *) Add assertions to check for (supposedly impossible) buffer
2910 [Ben Laurie (CHATS)]
2912 *) Don't cache truncated DNS entries in the local cache (this could
2913 potentially lead to a spoofing attack).
2914 [Ben Laurie (CHATS)]
2916 *) Fix various buffers to be large enough for hex/decimal
2917 representations in a platform independent manner.
2918 [Ben Laurie (CHATS)]
2920 *) Add CRYPTO_realloc_clean() to avoid information leakage when
2921 resizing buffers containing secrets, and use where appropriate.
2922 [Ben Laurie (CHATS)]
2924 *) Add BIO_indent() to avoid much slightly worrying code to do
2926 [Ben Laurie (CHATS)]
2928 *) Convert sprintf()/BIO_puts() to BIO_printf().
2929 [Ben Laurie (CHATS)]
2931 *) buffer_gets() could terminate with the buffer only half
2933 [Ben Laurie (CHATS)]
2935 *) Add assertions to prevent user-supplied crypto functions from
2936 overflowing internal buffers by having large block sizes, etc.
2937 [Ben Laurie (CHATS)]
2939 *) New OPENSSL_assert() macro (similar to assert(), but enabled
2941 [Ben Laurie (CHATS)]
2943 *) Eliminate unused copy of key in RC4.
2944 [Ben Laurie (CHATS)]
2946 *) Eliminate unused and incorrectly sized buffers for IV in pem.h.
2947 [Ben Laurie (CHATS)]
2949 *) Fix off-by-one error in EGD path.
2950 [Ben Laurie (CHATS)]
2952 *) If RANDFILE path is too long, ignore instead of truncating.
2953 [Ben Laurie (CHATS)]
2955 *) Eliminate unused and incorrectly sized X.509 structure
2957 [Ben Laurie (CHATS)]
2959 *) Eliminate unused and dangerous function knumber().
2960 [Ben Laurie (CHATS)]
2962 *) Eliminate unused and dangerous structure, KSSL_ERR.
2963 [Ben Laurie (CHATS)]
2965 *) Protect against overlong session ID context length in an encoded
2966 session object. Since these are local, this does not appear to be
2968 [Ben Laurie (CHATS)]
2970 *) Change from security patch (see 0.9.6e below) that did not affect
2971 the 0.9.6 release series:
2973 Remote buffer overflow in SSL3 protocol - an attacker could
2974 supply an oversized master key in Kerberos-enabled versions.
2976 [Ben Laurie (CHATS)]
2978 *) Change the SSL kerb5 codes to match RFC 2712.
2981 *) Make -nameopt work fully for req and add -reqopt switch.
2982 [Michael Bell <michael.bell@rz.hu-berlin.de>, Steve Henson]
2984 *) The "block size" for block ciphers in CFB and OFB mode should be 1.
2985 [Steve Henson, reported by Yngve Nysaeter Pettersen <yngve@opera.com>]
2987 *) Make sure tests can be performed even if the corresponding algorithms
2988 have been removed entirely. This was also the last step to make
2989 OpenSSL compilable with DJGPP under all reasonable conditions.
2990 [Richard Levitte, Doug Kaufman <dkaufman@rahul.net>]
2992 *) Add cipher selection rules COMPLEMENTOFALL and COMPLEMENTOFDEFAULT
2993 to allow version independent disabling of normally unselected ciphers,
2994 which may be activated as a side-effect of selecting a single cipher.
2996 (E.g., cipher list string "RSA" enables ciphersuites that are left
2997 out of "ALL" because they do not provide symmetric encryption.
2998 "RSA:!COMPLEMEMENTOFALL" avoids these unsafe ciphersuites.)
2999 [Lutz Jaenicke, Bodo Moeller]
3001 *) Add appropriate support for separate platform-dependent build
3002 directories. The recommended way to make a platform-dependent
3003 build directory is the following (tested on Linux), maybe with
3006 # Place yourself outside of the OpenSSL source tree. In
3007 # this example, the environment variable OPENSSL_SOURCE
3008 # is assumed to contain the absolute OpenSSL source directory.
3009 mkdir -p objtree/"`uname -s`-`uname -r`-`uname -m`"
3010 cd objtree/"`uname -s`-`uname -r`-`uname -m`"
3011 (cd $OPENSSL_SOURCE; find . -type f) | while read F; do
3012 mkdir -p `dirname $F`
3013 ln -s $OPENSSL_SOURCE/$F $F
3016 To be absolutely sure not to disturb the source tree, a "make clean"
3017 is a good thing. If it isn't successfull, don't worry about it,
3018 it probably means the source directory is very clean.
3021 *) Make sure any ENGINE control commands make local copies of string
3022 pointers passed to them whenever necessary. Otherwise it is possible
3023 the caller may have overwritten (or deallocated) the original string
3024 data when a later ENGINE operation tries to use the stored values.
3025 [Götz Babin-Ebell <babinebell@trustcenter.de>]
3027 *) Improve diagnostics in file reading and command-line digests.
3028 [Ben Laurie aided and abetted by Solar Designer <solar@openwall.com>]
3030 *) Add AES modes CFB and OFB to the object database. Correct an
3031 error in AES-CFB decryption.
3034 *) Remove most calls to EVP_CIPHER_CTX_cleanup() in evp_enc.c, this
3035 allows existing EVP_CIPHER_CTX structures to be reused after
3036 calling EVP_*Final(). This behaviour is used by encryption
3037 BIOs and some applications. This has the side effect that
3038 applications must explicitly clean up cipher contexts with
3039 EVP_CIPHER_CTX_cleanup() or they will leak memory.
3042 *) Check the values of dna and dnb in bn_mul_recursive before calling
3043 bn_mul_comba (a non zero value means the a or b arrays do not contain
3044 n2 elements) and fallback to bn_mul_normal if either is not zero.
3047 *) Fix escaping of non-ASCII characters when using the -subj option
3048 of the "openssl req" command line tool. (Robert Joop <joop@fokus.gmd.de>)
3051 *) Make object definitions compliant to LDAP (RFC2256): SN is the short
3052 form for "surname", serialNumber has no short form.
3053 Use "mail" as the short name for "rfc822Mailbox" according to RFC2798;
3054 therefore remove "mail" short name for "internet 7".
3055 The OID for unique identifiers in X509 certificates is
3056 x500UniqueIdentifier, not uniqueIdentifier.
3057 Some more OID additions. (Michael Bell <michael.bell@rz.hu-berlin.de>)
3060 *) Add an "init" command to the ENGINE config module and auto initialize
3061 ENGINEs. Without any "init" command the ENGINE will be initialized
3062 after all ctrl commands have been executed on it. If init=1 the
3063 ENGINE is initailized at that point (ctrls before that point are run
3064 on the uninitialized ENGINE and after on the initialized one). If
3065 init=0 then the ENGINE will not be iniatialized at all.
3068 *) Fix the 'app_verify_callback' interface so that the user-defined
3069 argument is actually passed to the callback: In the
3070 SSL_CTX_set_cert_verify_callback() prototype, the callback
3071 declaration has been changed from
3074 int (*cb)(X509_STORE_CTX *,void *);
3075 in ssl_verify_cert_chain (ssl/ssl_cert.c), the call
3076 i=s->ctx->app_verify_callback(&ctx)
3077 has been changed into
3078 i=s->ctx->app_verify_callback(&ctx, s->ctx->app_verify_arg).
3080 To update applications using SSL_CTX_set_cert_verify_callback(),
3081 a dummy argument can be added to their callback functions.
3082 [D. K. Smetters <smetters@parc.xerox.com>]
3084 *) Added the '4758cca' ENGINE to support IBM 4758 cards.
3085 [Maurice Gittens <maurice@gittens.nl>, touchups by Geoff Thorpe]
3087 *) Add and OPENSSL_LOAD_CONF define which will cause
3088 OpenSSL_add_all_algorithms() to load the openssl.cnf config file.
3089 This allows older applications to transparently support certain
3090 OpenSSL features: such as crypto acceleration and dynamic ENGINE loading.
3091 Two new functions OPENSSL_add_all_algorithms_noconf() which will never
3092 load the config file and OPENSSL_add_all_algorithms_conf() which will
3093 always load it have also been added.
3096 *) Add the OFB, CFB and CTR (all with 128 bit feedback) to AES.
3097 Adjust NIDs and EVP layer.
3098 [Stephen Sprunk <stephen@sprunk.org> and Richard Levitte]
3100 *) Config modules support in openssl utility.
3102 Most commands now load modules from the config file,
3103 though in a few (such as version) this isn't done
3104 because it couldn't be used for anything.
3106 In the case of ca and req the config file used is
3107 the same as the utility itself: that is the -config
3108 command line option can be used to specify an
3112 *) Move default behaviour from OPENSSL_config(). If appname is NULL
3113 use "openssl_conf" if filename is NULL use default openssl config file.
3116 *) Add an argument to OPENSSL_config() to allow the use of an alternative
3117 config section name. Add a new flag to tolerate a missing config file
3118 and move code to CONF_modules_load_file().
3121 *) Support for crypto accelerator cards from Accelerated Encryption
3122 Processing, www.aep.ie. (Use engine 'aep')
3123 The support was copied from 0.9.6c [engine] and adapted/corrected
3124 to work with the new engine framework.
3125 [AEP Inc. and Richard Levitte]
3127 *) Support for SureWare crypto accelerator cards from Baltimore
3128 Technologies. (Use engine 'sureware')
3129 The support was copied from 0.9.6c [engine] and adapted
3130 to work with the new engine framework.
3133 *) Have the CHIL engine fork-safe (as defined by nCipher) and actually
3134 make the newer ENGINE framework commands for the CHIL engine work.
3135 [Toomas Kiisk <vix@cyber.ee> and Richard Levitte]
3137 *) Make it possible to produce shared libraries on ReliantUNIX.
3138 [Robert Dahlem <Robert.Dahlem@ffm2.siemens.de> via Richard Levitte]
3140 *) Add the configuration target debug-linux-ppro.
3141 Make 'openssl rsa' use the general key loading routines
3142 implemented in apps.c, and make those routines able to
3143 handle the key format FORMAT_NETSCAPE and the variant
3145 [Toomas Kiisk <vix@cyber.ee> via Richard Levitte]
3147 *) Fix a crashbug and a logic bug in hwcrhk_load_pubkey().
3148 [Toomas Kiisk <vix@cyber.ee> via Richard Levitte]
3150 *) Add -keyform to rsautl, and document -engine.
3151 [Richard Levitte, inspired by Toomas Kiisk <vix@cyber.ee>]
3153 *) Change BIO_new_file (crypto/bio/bss_file.c) to use new
3154 BIO_R_NO_SUCH_FILE error code rather than the generic
3155 ERR_R_SYS_LIB error code if fopen() fails with ENOENT.
3158 *) Add new functions
3160 ERR_peek_last_error_line
3161 ERR_peek_last_error_line_data.
3162 These are similar to
3165 ERR_peek_error_line_data,
3166 but report on the latest error recorded rather than the first one
3167 still in the error queue.
3168 [Ben Laurie, Bodo Moeller]
3170 *) default_algorithms option in ENGINE config module. This allows things
3172 default_algorithms = ALL
3173 default_algorithms = RSA, DSA, RAND, CIPHERS, DIGESTS
3176 *) Prelminary ENGINE config module.
3179 *) New experimental application configuration code.
3182 *) Change the AES code to follow the same name structure as all other
3183 symmetric ciphers, and behave the same way. Move everything to
3184 the directory crypto/aes, thereby obsoleting crypto/rijndael.
3185 [Stephen Sprunk <stephen@sprunk.org> and Richard Levitte]
3187 *) SECURITY: remove unsafe setjmp/signal interaction from ui_openssl.c.
3188 [Ben Laurie and Theo de Raadt]
3190 *) Add option to output public keys in req command.
3191 [Massimiliano Pala madwolf@openca.org]
3193 *) Use wNAFs in EC_POINTs_mul() for improved efficiency
3194 (up to about 10% better than before for P-192 and P-224).
3197 *) New functions/macros
3199 SSL_CTX_set_msg_callback(ctx, cb)
3200 SSL_CTX_set_msg_callback_arg(ctx, arg)
3201 SSL_set_msg_callback(ssl, cb)
3202 SSL_set_msg_callback_arg(ssl, arg)
3204 to request calling a callback function
3206 void cb(int write_p, int version, int content_type,
3207 const void *buf, size_t len, SSL *ssl, void *arg)
3209 whenever a protocol message has been completely received
3210 (write_p == 0) or sent (write_p == 1). Here 'version' is the
3211 protocol version according to which the SSL library interprets
3212 the current protocol message (SSL2_VERSION, SSL3_VERSION, or
3213 TLS1_VERSION). 'content_type' is 0 in the case of SSL 2.0, or
3214 the content type as defined in the SSL 3.0/TLS 1.0 protocol
3215 specification (change_cipher_spec(20), alert(21), handshake(22)).
3216 'buf' and 'len' point to the actual message, 'ssl' to the
3217 SSL object, and 'arg' is the application-defined value set by
3218 SSL[_CTX]_set_msg_callback_arg().
3220 'openssl s_client' and 'openssl s_server' have new '-msg' options
3221 to enable a callback that displays all protocol messages.
3224 *) Change the shared library support so shared libraries are built as
3225 soon as the corresponding static library is finished, and thereby get
3226 openssl and the test programs linked against the shared library.
3227 This still only happens when the keyword "shard" has been given to
3228 the configuration scripts.
3230 NOTE: shared library support is still an experimental thing, and
3231 backward binary compatibility is still not guaranteed.
3232 ["Maciej W. Rozycki" <macro@ds2.pg.gda.pl> and Richard Levitte]
3234 *) Add support for Subject Information Access extension.
3235 [Peter Sylvester <Peter.Sylvester@EdelWeb.fr>]
3237 *) Make BUF_MEM_grow() behaviour more consistent: Initialise to zero
3238 additional bytes when new memory had to be allocated, not just
3239 when reusing an existing buffer.
3242 *) New command line and configuration option 'utf8' for the req command.
3243 This allows field values to be specified as UTF8 strings.
3246 *) Add -multi and -mr options to "openssl speed" - giving multiple parallel
3247 runs for the former and machine-readable output for the latter.
3250 *) Add '-noemailDN' option to 'openssl ca'. This prevents inclusion
3251 of the e-mail address in the DN (i.e., it will go into a certificate
3252 extension only). The new configuration file option 'email_in_dn = no'
3253 has the same effect.
3254 [Massimiliano Pala madwolf@openca.org]
3256 *) Change all functions with names starting with des_ to be starting
3257 with DES_ instead. Add wrappers that are compatible with libdes,
3258 but are named _ossl_old_des_*. Finally, add macros that map the
3259 des_* symbols to the corresponding _ossl_old_des_* if libdes
3260 compatibility is desired. If OpenSSL 0.9.6c compatibility is
3261 desired, the des_* symbols will be mapped to DES_*, with one
3264 Since we provide two compatibility mappings, the user needs to
3265 define the macro OPENSSL_DES_LIBDES_COMPATIBILITY if libdes
3266 compatibility is desired. The default (i.e., when that macro
3267 isn't defined) is OpenSSL 0.9.6c compatibility.
3269 There are also macros that enable and disable the support of old
3270 des functions altogether. Those are OPENSSL_ENABLE_OLD_DES_SUPPORT
3271 and OPENSSL_DISABLE_OLD_DES_SUPPORT. If none or both of those
3272 are defined, the default will apply: to support the old des routines.
3274 In either case, one must include openssl/des.h to get the correct
3275 definitions. Do not try to just include openssl/des_old.h, that
3278 NOTE: This is a major break of an old API into a new one. Software
3279 authors are encouraged to switch to the DES_ style functions. Some
3280 time in the future, des_old.h and the libdes compatibility functions
3281 will be disable (i.e. OPENSSL_DISABLE_OLD_DES_SUPPORT will be the
3282 default), and then completely removed.
3285 *) Test for certificates which contain unsupported critical extensions.
3286 If such a certificate is found during a verify operation it is
3287 rejected by default: this behaviour can be overridden by either
3288 handling the new error X509_V_ERR_UNHANDLED_CRITICAL_EXTENSION or
3289 by setting the verify flag X509_V_FLAG_IGNORE_CRITICAL. A new function
3290 X509_supported_extension() has also been added which returns 1 if a
3291 particular extension is supported.
3294 *) Modify the behaviour of EVP cipher functions in similar way to digests
3295 to retain compatibility with existing code.
3298 *) Modify the behaviour of EVP_DigestInit() and EVP_DigestFinal() to retain
3299 compatibility with existing code. In particular the 'ctx' parameter does
3300 not have to be to be initialized before the call to EVP_DigestInit() and
3301 it is tidied up after a call to EVP_DigestFinal(). New function
3302 EVP_DigestFinal_ex() which does not tidy up the ctx. Similarly function
3303 EVP_MD_CTX_copy() changed to not require the destination to be
3304 initialized valid and new function EVP_MD_CTX_copy_ex() added which
3305 requires the destination to be valid.
3307 Modify all the OpenSSL digest calls to use EVP_DigestInit_ex(),
3308 EVP_DigestFinal_ex() and EVP_MD_CTX_copy_ex().
3311 *) Change ssl3_get_message (ssl/s3_both.c) and the functions using it
3312 so that complete 'Handshake' protocol structures are kept in memory
3313 instead of overwriting 'msg_type' and 'length' with 'body' data.
3316 *) Add an implementation of SSL_add_dir_cert_subjects_to_stack for Win32.
3317 [Massimo Santin via Richard Levitte]
3319 *) Major restructuring to the underlying ENGINE code. This includes
3320 reduction of linker bloat, separation of pure "ENGINE" manipulation
3321 (initialisation, etc) from functionality dealing with implementations
3322 of specific crypto iterfaces. This change also introduces integrated
3323 support for symmetric ciphers and digest implementations - so ENGINEs
3324 can now accelerate these by providing EVP_CIPHER and EVP_MD
3325 implementations of their own. This is detailed in crypto/engine/README
3326 as it couldn't be adequately described here. However, there are a few
3327 API changes worth noting - some RSA, DSA, DH, and RAND functions that
3328 were changed in the original introduction of ENGINE code have now
3329 reverted back - the hooking from this code to ENGINE is now a good
3330 deal more passive and at run-time, operations deal directly with
3331 RSA_METHODs, DSA_METHODs (etc) as they did before, rather than
3332 dereferencing through an ENGINE pointer any more. Also, the ENGINE
3333 functions dealing with BN_MOD_EXP[_CRT] handlers have been removed -
3334 they were not being used by the framework as there is no concept of a
3335 BIGNUM_METHOD and they could not be generalised to the new
3336 'ENGINE_TABLE' mechanism that underlies the new code. Similarly,
3337 ENGINE_cpy() has been removed as it cannot be consistently defined in
3341 *) Change ASN1_GENERALIZEDTIME_check() to allow fractional seconds.
3344 *) Change mkdef.pl to sort symbols that get the same entry number,
3345 and make sure the automatically generated functions ERR_load_*
3346 become part of libeay.num as well.
3349 *) New function SSL_renegotiate_pending(). This returns true once
3350 renegotiation has been requested (either SSL_renegotiate() call
3351 or HelloRequest/ClientHello receveived from the peer) and becomes
3352 false once a handshake has been completed.
3353 (For servers, SSL_renegotiate() followed by SSL_do_handshake()
3354 sends a HelloRequest, but does not ensure that a handshake takes
3355 place. SSL_renegotiate_pending() is useful for checking if the
3356 client has followed the request.)
3359 *) New SSL option SSL_OP_NO_SESSION_RESUMPTION_ON_RENEGOTIATION.
3360 By default, clients may request session resumption even during
3361 renegotiation (if session ID contexts permit); with this option,
3362 session resumption is possible only in the first handshake.
3364 SSL_OP_ALL is now 0x00000FFFL instead of 0x000FFFFFL. This makes
3365 more bits available for options that should not be part of
3366 SSL_OP_ALL (such as SSL_OP_NO_SESSION_RESUMPTION_ON_RENEGOTIATION).
3369 *) Add some demos for certificate and certificate request creation.
3372 *) Make maximum certificate chain size accepted from the peer application
3373 settable (SSL*_get/set_max_cert_list()), as proposed by
3374 "Douglas E. Engert" <deengert@anl.gov>.
3377 *) Add support for shared libraries for Unixware-7
3378 (Boyd Lynn Gerber <gerberb@zenez.com>).
3381 *) Add a "destroy" handler to ENGINEs that allows structural cleanup to
3382 be done prior to destruction. Use this to unload error strings from
3383 ENGINEs that load their own error strings. NB: This adds two new API
3384 functions to "get" and "set" this destroy handler in an ENGINE.
3387 *) Alter all existing ENGINE implementations (except "openssl" and
3388 "openbsd") to dynamically instantiate their own error strings. This
3389 makes them more flexible to be built both as statically-linked ENGINEs
3390 and self-contained shared-libraries loadable via the "dynamic" ENGINE.
3391 Also, add stub code to each that makes building them as self-contained
3392 shared-libraries easier (see README.ENGINE).
3395 *) Add a "dynamic" ENGINE that provides a mechanism for binding ENGINE
3396 implementations into applications that are completely implemented in
3397 self-contained shared-libraries. The "dynamic" ENGINE exposes control
3398 commands that can be used to configure what shared-library to load and
3399 to control aspects of the way it is handled. Also, made an update to
3400 the README.ENGINE file that brings its information up-to-date and
3401 provides some information and instructions on the "dynamic" ENGINE
3402 (ie. how to use it, how to build "dynamic"-loadable ENGINEs, etc).
3405 *) Make it possible to unload ranges of ERR strings with a new
3406 "ERR_unload_strings" function.
3409 *) Add a copy() function to EVP_MD.
3412 *) Make EVP_MD routines take a context pointer instead of just the
3413 md_data void pointer.
3416 *) Add flags to EVP_MD and EVP_MD_CTX. EVP_MD_FLAG_ONESHOT indicates
3417 that the digest can only process a single chunk of data
3418 (typically because it is provided by a piece of
3419 hardware). EVP_MD_CTX_FLAG_ONESHOT indicates that the application
3420 is only going to provide a single chunk of data, and hence the
3421 framework needn't accumulate the data for oneshot drivers.
3424 *) As with "ERR", make it possible to replace the underlying "ex_data"
3425 functions. This change also alters the storage and management of global
3426 ex_data state - it's now all inside ex_data.c and all "class" code (eg.
3427 RSA, BIO, SSL_CTX, etc) no longer stores its own STACKS and per-class
3428 index counters. The API functions that use this state have been changed
3429 to take a "class_index" rather than pointers to the class's local STACK
3430 and counter, and there is now an API function to dynamically create new
3431 classes. This centralisation allows us to (a) plug a lot of the
3432 thread-safety problems that existed, and (b) makes it possible to clean
3433 up all allocated state using "CRYPTO_cleanup_all_ex_data()". W.r.t. (b)
3434 such data would previously have always leaked in application code and
3435 workarounds were in place to make the memory debugging turn a blind eye
3436 to it. Application code that doesn't use this new function will still
3437 leak as before, but their memory debugging output will announce it now
3438 rather than letting it slide.
3440 Besides the addition of CRYPTO_cleanup_all_ex_data(), another API change
3441 induced by the "ex_data" overhaul is that X509_STORE_CTX_init() now
3442 has a return value to indicate success or failure.
3445 *) Make it possible to replace the underlying "ERR" functions such that the
3446 global state (2 LHASH tables and 2 locks) is only used by the "default"
3447 implementation. This change also adds two functions to "get" and "set"
3448 the implementation prior to it being automatically set the first time
3449 any other ERR function takes place. Ie. an application can call "get",
3450 pass the return value to a module it has just loaded, and that module
3451 can call its own "set" function using that value. This means the
3452 module's "ERR" operations will use (and modify) the error state in the
3453 application and not in its own statically linked copy of OpenSSL code.
3456 *) Give DH, DSA, and RSA types their own "**_up_ref()" function to increment
3457 reference counts. This performs normal REF_PRINT/REF_CHECK macros on
3458 the operation, and provides a more encapsulated way for external code
3459 (crypto/evp/ and ssl/) to do this. Also changed the evp and ssl code
3460 to use these functions rather than manually incrementing the counts.
3462 Also rename "DSO_up()" function to more descriptive "DSO_up_ref()".
3465 *) Add EVP test program.
3468 *) Add symmetric cipher support to ENGINE. Expect the API to change!
3471 *) New CRL functions: X509_CRL_set_version(), X509_CRL_set_issuer_name()
3472 X509_CRL_set_lastUpdate(), X509_CRL_set_nextUpdate(), X509_CRL_sort(),
3473 X509_REVOKED_set_serialNumber(), and X509_REVOKED_set_revocationDate().
3474 These allow a CRL to be built without having to access X509_CRL fields
3475 directly. Modify 'ca' application to use new functions.
3478 *) Move SSL_OP_TLS_ROLLBACK_BUG out of the SSL_OP_ALL list of recommended
3479 bug workarounds. Rollback attack detection is a security feature.
3480 The problem will only arise on OpenSSL servers when TLSv1 is not
3481 available (sslv3_server_method() or SSL_OP_NO_TLSv1).
3482 Software authors not wanting to support TLSv1 will have special reasons
3483 for their choice and can explicitly enable this option.
3484 [Bodo Moeller, Lutz Jaenicke]
3486 *) Rationalise EVP so it can be extended: don't include a union of
3487 cipher/digest structures, add init/cleanup functions for EVP_MD_CTX
3488 (similar to those existing for EVP_CIPHER_CTX).
3493 EVP_MD_CTX_init(&md); /* new function call */
3494 EVP_DigestInit(&md, EVP_sha1());
3495 EVP_DigestUpdate(&md, in, len);
3496 EVP_DigestFinal(&md, out, NULL);
3497 EVP_MD_CTX_cleanup(&md); /* new function call */
3501 *) Make DES key schedule conform to the usual scheme, as well as
3502 correcting its structure. This means that calls to DES functions
3503 now have to pass a pointer to a des_key_schedule instead of a
3504 plain des_key_schedule (which was actually always a pointer
3507 des_key_schedule ks;
3509 des_set_key_checked(..., &ks);
3510 des_ncbc_encrypt(..., &ks, ...);
3512 (Note that a later change renames 'des_...' into 'DES_...'.)
3515 *) Initial reduction of linker bloat: the use of some functions, such as
3516 PEM causes large amounts of unused functions to be linked in due to
3517 poor organisation. For example pem_all.c contains every PEM function
3518 which has a knock on effect of linking in large amounts of (unused)
3519 ASN1 code. Grouping together similar functions and splitting unrelated
3520 functions prevents this.
3523 *) Cleanup of EVP macros.
3526 *) Change historical references to {NID,SN,LN}_des_ede and ede3 to add the
3527 correct _ecb suffix.
3530 *) Add initial OCSP responder support to ocsp application. The
3531 revocation information is handled using the text based index
3532 use by the ca application. The responder can either handle
3533 requests generated internally, supplied in files (for example
3534 via a CGI script) or using an internal minimal server.
3537 *) Add configuration choices to get zlib compression for TLS.
3540 *) Changes to Kerberos SSL for RFC 2712 compliance:
3541 1. Implemented real KerberosWrapper, instead of just using
3542 KRB5 AP_REQ message. [Thanks to Simon Wilkinson <sxw@sxw.org.uk>]
3543 2. Implemented optional authenticator field of KerberosWrapper.
3545 Added openssl-style ASN.1 macros for Kerberos ticket, ap_req,
3546 and authenticator structs; see crypto/krb5/.
3548 Generalized Kerberos calls to support multiple Kerberos libraries.
3549 [Vern Staats <staatsvr@asc.hpc.mil>,
3550 Jeffrey Altman <jaltman@columbia.edu>
3551 via Richard Levitte]
3553 *) Cause 'openssl speed' to use fully hard-coded DSA keys as it
3554 already does with RSA. testdsa.h now has 'priv_key/pub_key'
3555 values for each of the key sizes rather than having just
3556 parameters (and 'speed' generating keys each time).
3559 *) Speed up EVP routines.
3562 type 8 bytes 64 bytes 256 bytes 1024 bytes 8192 bytes
3563 des-cbc 4408.85k 5560.51k 5778.46k 5862.20k 5825.16k
3564 des-cbc 4389.55k 5571.17k 5792.23k 5846.91k 5832.11k
3565 des-cbc 4394.32k 5575.92k 5807.44k 5848.37k 5841.30k
3567 des-cbc 3482.66k 5069.49k 5496.39k 5614.16k 5639.28k
3568 des-cbc 3480.74k 5068.76k 5510.34k 5609.87k 5635.52k
3569 des-cbc 3483.72k 5067.62k 5504.60k 5708.01k 5724.80k
3572 des-cbc 4660.16k 5650.19k 5807.19k 5827.13k 5783.32k
3574 des-cbc 3624.96k 5258.21k 5530.91k 5624.30k 5628.26k
3577 *) Added the OS2-EMX target.
3578 ["Brian Havard" <brianh@kheldar.apana.org.au> and Richard Levitte]
3580 *) Rewrite apps to use NCONF routines instead of the old CONF. New functions
3581 to support NCONF routines in extension code. New function CONF_set_nconf()
3582 to allow functions which take an NCONF to also handle the old LHASH
3583 structure: this means that the old CONF compatible routines can be
3584 retained (in particular wrt extensions) without having to duplicate the
3585 code. New function X509V3_add_ext_nconf_sk to add extensions to a stack.
3588 *) Enhance the general user interface with mechanisms for inner control
3589 and with possibilities to have yes/no kind of prompts.
3592 *) Change all calls to low level digest routines in the library and
3593 applications to use EVP. Add missing calls to HMAC_cleanup() and
3594 don't assume HMAC_CTX can be copied using memcpy().
3595 [Verdon Walker <VWalker@novell.com>, Steve Henson]
3597 *) Add the possibility to control engines through control names but with
3598 arbitrary arguments instead of just a string.
3599 Change the key loaders to take a UI_METHOD instead of a callback
3600 function pointer. NOTE: this breaks binary compatibility with earlier
3601 versions of OpenSSL [engine].
3602 Adapt the nCipher code for these new conditions and add a card insertion
3606 *) Enhance the general user interface with mechanisms to better support
3607 dialog box interfaces, application-defined prompts, the possibility
3608 to use defaults (for example default passwords from somewhere else)
3609 and interrupts/cancellations.
3612 *) Tidy up PKCS#12 attribute handling. Add support for the CSP name
3613 attribute in PKCS#12 files, add new -CSP option to pkcs12 utility.
3616 *) Fix a memory leak in 'sk_dup()' in the case reallocation fails. (Also
3617 tidy up some unnecessarily weird code in 'sk_new()').
3618 [Geoff, reported by Diego Tartara <dtartara@novamens.com>]
3620 *) Change the key loading routines for ENGINEs to use the same kind
3621 callback (pem_password_cb) as all other routines that need this
3625 *) Increase ENTROPY_NEEDED to 32 bytes, as Rijndael can operate with
3626 256 bit (=32 byte) keys. Of course seeding with more entropy bytes
3627 than this minimum value is recommended.
3630 *) New random seeder for OpenVMS, using the system process statistics
3631 that are easily reachable.
3634 *) Windows apparently can't transparently handle global
3635 variables defined in DLLs. Initialisations such as:
3637 const ASN1_ITEM *it = &ASN1_INTEGER_it;
3639 wont compile. This is used by the any applications that need to
3640 declare their own ASN1 modules. This was fixed by adding the option
3641 EXPORT_VAR_AS_FN to all Win32 platforms, although this isn't strictly
3642 needed for static libraries under Win32.
3645 *) New functions X509_PURPOSE_set() and X509_TRUST_set() to handle
3646 setting of purpose and trust fields. New X509_STORE trust and
3647 purpose functions and tidy up setting in other SSL functions.
3650 *) Add copies of X509_STORE_CTX fields and callbacks to X509_STORE
3651 structure. These are inherited by X509_STORE_CTX when it is
3652 initialised. This allows various defaults to be set in the
3653 X509_STORE structure (such as flags for CRL checking and custom
3654 purpose or trust settings) for functions which only use X509_STORE_CTX
3655 internally such as S/MIME.
3657 Modify X509_STORE_CTX_purpose_inherit() so it only sets purposes and
3658 trust settings if they are not set in X509_STORE. This allows X509_STORE
3659 purposes and trust (in S/MIME for example) to override any set by default.
3661 Add command line options for CRL checking to smime, s_client and s_server
3665 *) Initial CRL based revocation checking. If the CRL checking flag(s)
3666 are set then the CRL is looked up in the X509_STORE structure and
3667 its validity and signature checked, then if the certificate is found
3668 in the CRL the verify fails with a revoked error.
3670 Various new CRL related callbacks added to X509_STORE_CTX structure.
3672 Command line options added to 'verify' application to support this.
3674 This needs some additional work, such as being able to handle multiple
3675 CRLs with different times, extension based lookup (rather than just
3676 by subject name) and ultimately more complete V2 CRL extension
3680 *) Add a general user interface API (crypto/ui/). This is designed
3681 to replace things like des_read_password and friends (backward
3682 compatibility functions using this new API are provided).
3683 The purpose is to remove prompting functions from the DES code
3684 section as well as provide for prompting through dialog boxes in
3685 a window system and the like.
3688 *) Add "ex_data" support to ENGINE so implementations can add state at a
3689 per-structure level rather than having to store it globally.
3692 *) Make it possible for ENGINE structures to be copied when retrieved by
3693 ENGINE_by_id() if the ENGINE specifies a new flag: ENGINE_FLAGS_BY_ID_COPY.
3694 This causes the "original" ENGINE structure to act like a template,
3695 analogous to the RSA vs. RSA_METHOD type of separation. Because of this
3696 operational state can be localised to each ENGINE structure, despite the
3697 fact they all share the same "methods". New ENGINE structures returned in
3698 this case have no functional references and the return value is the single
3699 structural reference. This matches the single structural reference returned
3700 by ENGINE_by_id() normally, when it is incremented on the pre-existing
3704 *) Fix ASN1 decoder when decoding type ANY and V_ASN1_OTHER: since this
3705 needs to match any other type at all we need to manually clear the
3709 *) Changes to the "openssl engine" utility to include;
3710 - verbosity levels ('-v', '-vv', and '-vvv') that provide information
3711 about an ENGINE's available control commands.
3712 - executing control commands from command line arguments using the
3713 '-pre' and '-post' switches. '-post' is only used if '-t' is
3714 specified and the ENGINE is successfully initialised. The syntax for
3715 the individual commands are colon-separated, for example;
3716 openssl engine chil -pre FORK_CHECK:0 -pre SO_PATH:/lib/test.so
3719 *) New dynamic control command support for ENGINEs. ENGINEs can now
3720 declare their own commands (numbers), names (strings), descriptions,
3721 and input types for run-time discovery by calling applications. A
3722 subset of these commands are implicitly classed as "executable"
3723 depending on their input type, and only these can be invoked through
3724 the new string-based API function ENGINE_ctrl_cmd_string(). (Eg. this
3725 can be based on user input, config files, etc). The distinction is
3726 that "executable" commands cannot return anything other than a boolean
3727 result and can only support numeric or string input, whereas some
3728 discoverable commands may only be for direct use through
3729 ENGINE_ctrl(), eg. supporting the exchange of binary data, function
3730 pointers, or other custom uses. The "executable" commands are to
3731 support parameterisations of ENGINE behaviour that can be
3732 unambiguously defined by ENGINEs and used consistently across any
3733 OpenSSL-based application. Commands have been added to all the
3734 existing hardware-supporting ENGINEs, noticeably "SO_PATH" to allow
3735 control over shared-library paths without source code alterations.
3738 *) Changed all ENGINE implementations to dynamically allocate their
3739 ENGINEs rather than declaring them statically. Apart from this being
3740 necessary with the removal of the ENGINE_FLAGS_MALLOCED distinction,
3741 this also allows the implementations to compile without using the
3742 internal engine_int.h header.
3745 *) Minor adjustment to "rand" code. RAND_get_rand_method() now returns a
3746 'const' value. Any code that should be able to modify a RAND_METHOD
3747 should already have non-const pointers to it (ie. they should only
3748 modify their own ones).
3751 *) Made a variety of little tweaks to the ENGINE code.
3752 - "atalla" and "ubsec" string definitions were moved from header files
3753 to C code. "nuron" string definitions were placed in variables
3754 rather than hard-coded - allowing parameterisation of these values
3755 later on via ctrl() commands.
3756 - Removed unused "#if 0"'d code.
3757 - Fixed engine list iteration code so it uses ENGINE_free() to release
3758 structural references.
3759 - Constified the RAND_METHOD element of ENGINE structures.
3760 - Constified various get/set functions as appropriate and added
3761 missing functions (including a catch-all ENGINE_cpy that duplicates
3762 all ENGINE values onto a new ENGINE except reference counts/state).
3763 - Removed NULL parameter checks in get/set functions. Setting a method
3764 or function to NULL is a way of cancelling out a previously set
3765 value. Passing a NULL ENGINE parameter is just plain stupid anyway
3766 and doesn't justify the extra error symbols and code.
3767 - Deprecate the ENGINE_FLAGS_MALLOCED define and move the area for
3768 flags from engine_int.h to engine.h.
3769 - Changed prototypes for ENGINE handler functions (init(), finish(),
3770 ctrl(), key-load functions, etc) to take an (ENGINE*) parameter.
3773 *) Implement binary inversion algorithm for BN_mod_inverse in addition
3774 to the algorithm using long division. The binary algorithm can be
3775 used only if the modulus is odd. On 32-bit systems, it is faster
3776 only for relatively small moduli (roughly 20-30% for 128-bit moduli,
3777 roughly 5-15% for 256-bit moduli), so we use it only for moduli
3778 up to 450 bits. In 64-bit environments, the binary algorithm
3779 appears to be advantageous for much longer moduli; here we use it
3780 for moduli up to 2048 bits.
3783 *) Rewrite CHOICE field setting in ASN1_item_ex_d2i(). The old code
3784 could not support the combine flag in choice fields.
3787 *) Add a 'copy_extensions' option to the 'ca' utility. This copies
3788 extensions from a certificate request to the certificate.
3791 *) Allow multiple 'certopt' and 'nameopt' options to be separated
3792 by commas. Add 'namopt' and 'certopt' options to the 'ca' config
3793 file: this allows the display of the certificate about to be
3794 signed to be customised, to allow certain fields to be included
3795 or excluded and extension details. The old system didn't display
3796 multicharacter strings properly, omitted fields not in the policy
3797 and couldn't display additional details such as extensions.
3800 *) Function EC_POINTs_mul for multiple scalar multiplication
3801 of an arbitrary number of elliptic curve points
3802 \sum scalars[i]*points[i],
3803 optionally including the generator defined for the EC_GROUP:
3804 scalar*generator + \sum scalars[i]*points[i].
3806 EC_POINT_mul is a simple wrapper function for the typical case
3807 that the point list has just one item (besides the optional
3811 *) First EC_METHODs for curves over GF(p):
3813 EC_GFp_simple_method() uses the basic BN_mod_mul and BN_mod_sqr
3814 operations and provides various method functions that can also
3815 operate with faster implementations of modular arithmetic.
3817 EC_GFp_mont_method() reuses most functions that are part of
3818 EC_GFp_simple_method, but uses Montgomery arithmetic.
3820 [Bodo Moeller; point addition and point doubling
3821 implementation directly derived from source code provided by
3822 Lenka Fibikova <fibikova@exp-math.uni-essen.de>]
3824 *) Framework for elliptic curves (crypto/ec/ec.h, crypto/ec/ec_lcl.h,
3825 crypto/ec/ec_lib.c):
3827 Curves are EC_GROUP objects (with an optional group generator)
3828 based on EC_METHODs that are built into the library.
3830 Points are EC_POINT objects based on EC_GROUP objects.
3832 Most of the framework would be able to handle curves over arbitrary
3833 finite fields, but as there are no obvious types for fields other
3834 than GF(p), some functions are limited to that for now.
3837 *) Add the -HTTP option to s_server. It is similar to -WWW, but requires
3838 that the file contains a complete HTTP response.
3841 *) Add the ec directory to mkdef.pl and mkfiles.pl. In mkdef.pl
3842 change the def and num file printf format specifier from "%-40sXXX"
3843 to "%-39s XXX". The latter will always guarantee a space after the
3844 field while the former will cause them to run together if the field
3845 is 40 of more characters long.
3848 *) Constify the cipher and digest 'method' functions and structures
3849 and modify related functions to take constant EVP_MD and EVP_CIPHER
3853 *) Hide BN_CTX structure details in bn_lcl.h instead of publishing them
3854 in <openssl/bn.h>. Also further increase BN_CTX_NUM to 32.
3857 *) Modify EVP_Digest*() routines so they now return values. Although the
3858 internal software routines can never fail additional hardware versions
3862 *) Clean up crypto/err/err.h and change some error codes to avoid conflicts:
3864 Previously ERR_R_FATAL was too small and coincided with ERR_LIB_PKCS7
3865 (= ERR_R_PKCS7_LIB); it is now 64 instead of 32.
3868 ERR_R_NESTED_ASN1_ERROR
3870 ERR_R_MISSING_ASN1_EOS
3871 were 4 .. 9, conflicting with
3872 ERR_LIB_RSA (= ERR_R_RSA_LIB)
3874 ERR_LIB_PEM (= ERR_R_PEM_LIB).
3875 They are now 58 .. 63 (i.e., just below ERR_R_FATAL).
3877 Add new error code 'ERR_R_INTERNAL_ERROR'.
3880 *) Don't overuse locks in crypto/err/err.c: For data retrieval, CRYPTO_r_lock
3884 *) New option '-subj arg' for 'openssl req' and 'openssl ca'. This
3885 sets the subject name for a new request or supersedes the
3886 subject name in a given request. Formats that can be parsed are
3887 'CN=Some Name, OU=myOU, C=IT'
3889 'CN=Some Name/OU=myOU/C=IT'.
3891 Add options '-batch' and '-verbose' to 'openssl req'.
3892 [Massimiliano Pala <madwolf@hackmasters.net>]
3894 *) Introduce the possibility to access global variables through
3895 functions on platform were that's the best way to handle exporting
3896 global variables in shared libraries. To enable this functionality,
3897 one must configure with "EXPORT_VAR_AS_FN" or defined the C macro
3898 "OPENSSL_EXPORT_VAR_AS_FUNCTION" in crypto/opensslconf.h (the latter
3899 is normally done by Configure or something similar).
3901 To implement a global variable, use the macro OPENSSL_IMPLEMENT_GLOBAL
3902 in the source file (foo.c) like this:
3904 OPENSSL_IMPLEMENT_GLOBAL(int,foo)=1;
3905 OPENSSL_IMPLEMENT_GLOBAL(double,bar);
3907 To declare a global variable, use the macros OPENSSL_DECLARE_GLOBAL
3908 and OPENSSL_GLOBAL_REF in the header file (foo.h) like this:
3910 OPENSSL_DECLARE_GLOBAL(int,foo);
3911 #define foo OPENSSL_GLOBAL_REF(foo)
3912 OPENSSL_DECLARE_GLOBAL(double,bar);
3913 #define bar OPENSSL_GLOBAL_REF(bar)
3915 The #defines are very important, and therefore so is including the
3916 header file everywhere where the defined globals are used.
3918 The macro OPENSSL_EXPORT_VAR_AS_FUNCTION also affects the definition
3919 of ASN.1 items, but that structure is a bit different.
3921 The largest change is in util/mkdef.pl which has been enhanced with
3922 better and easier to understand logic to choose which symbols should
3923 go into the Windows .def files as well as a number of fixes and code
3924 cleanup (among others, algorithm keywords are now sorted
3925 lexicographically to avoid constant rewrites).
3928 *) In BN_div() keep a copy of the sign of 'num' before writing the
3929 result to 'rm' because if rm==num the value will be overwritten
3930 and produce the wrong result if 'num' is negative: this caused
3931 problems with BN_mod() and BN_nnmod().
3934 *) Function OCSP_request_verify(). This checks the signature on an
3935 OCSP request and verifies the signer certificate. The signer
3936 certificate is just checked for a generic purpose and OCSP request
3940 *) Add OCSP_check_validity() function to check the validity of OCSP
3941 responses. OCSP responses are prepared in real time and may only
3942 be a few seconds old. Simply checking that the current time lies
3943 between thisUpdate and nextUpdate max reject otherwise valid responses
3944 caused by either OCSP responder or client clock inaccuracy. Instead
3945 we allow thisUpdate and nextUpdate to fall within a certain period of
3946 the current time. The age of the response can also optionally be
3947 checked. Two new options -validity_period and -status_age added to
3951 *) If signature or public key algorithm is unrecognized print out its
3952 OID rather that just UNKNOWN.
3955 *) Change OCSP_cert_to_id() to tolerate a NULL subject certificate and
3956 OCSP_cert_id_new() a NULL serialNumber. This allows a partial certificate
3957 ID to be generated from the issuer certificate alone which can then be
3958 passed to OCSP_id_issuer_cmp().
3961 *) New compilation option ASN1_ITEM_FUNCTIONS. This causes the new
3962 ASN1 modules to export functions returning ASN1_ITEM pointers
3963 instead of the ASN1_ITEM structures themselves. This adds several
3964 new macros which allow the underlying ASN1 function/structure to
3965 be accessed transparently. As a result code should not use ASN1_ITEM
3966 references directly (such as &X509_it) but instead use the relevant
3967 macros (such as ASN1_ITEM_rptr(X509)). This option is to allow
3968 use of the new ASN1 code on platforms where exporting structures
3969 is problematical (for example in shared libraries) but exporting
3970 functions returning pointers to structures is not.
3973 *) Add support for overriding the generation of SSL/TLS session IDs.
3974 These callbacks can be registered either in an SSL_CTX or per SSL.
3975 The purpose of this is to allow applications to control, if they wish,
3976 the arbitrary values chosen for use as session IDs, particularly as it
3977 can be useful for session caching in multiple-server environments. A
3978 command-line switch for testing this (and any client code that wishes
3979 to use such a feature) has been added to "s_server".
3980 [Geoff Thorpe, Lutz Jaenicke]
3982 *) Modify mkdef.pl to recognise and parse preprocessor conditionals
3983 of the form '#if defined(...) || defined(...) || ...' and
3984 '#if !defined(...) && !defined(...) && ...'. This also avoids
3985 the growing number of special cases it was previously handling.
3988 *) Make all configuration macros available for application by making
3989 sure they are available in opensslconf.h, by giving them names starting
3990 with "OPENSSL_" to avoid conflicts with other packages and by making
3991 sure e_os2.h will cover all platform-specific cases together with
3993 Additionally, it is now possible to define configuration/platform-
3994 specific names (called "system identities"). In the C code, these
3995 are prefixed with "OPENSSL_SYSNAME_". e_os2.h will create another
3996 macro with the name beginning with "OPENSSL_SYS_", which is determined
3997 from "OPENSSL_SYSNAME_*" or compiler-specific macros depending on
4001 *) New option -set_serial to 'req' and 'x509' this allows the serial
4002 number to use to be specified on the command line. Previously self
4003 signed certificates were hard coded with serial number 0 and the
4004 CA options of 'x509' had to use a serial number in a file which was
4008 *) New options to 'ca' utility to support V2 CRL entry extensions.
4009 Currently CRL reason, invalidity date and hold instruction are
4010 supported. Add new CRL extensions to V3 code and some new objects.
4013 *) New function EVP_CIPHER_CTX_set_padding() this is used to
4014 disable standard block padding (aka PKCS#5 padding) in the EVP
4015 API, which was previously mandatory. This means that the data is
4016 not padded in any way and so the total length much be a multiple
4017 of the block size, otherwise an error occurs.
4020 *) Initial (incomplete) OCSP SSL support.
4023 *) New function OCSP_parse_url(). This splits up a URL into its host,
4024 port and path components: primarily to parse OCSP URLs. New -url
4025 option to ocsp utility.
4028 *) New nonce behavior. The return value of OCSP_check_nonce() now
4029 reflects the various checks performed. Applications can decide
4030 whether to tolerate certain situations such as an absent nonce
4031 in a response when one was present in a request: the ocsp application
4032 just prints out a warning. New function OCSP_add1_basic_nonce()
4033 this is to allow responders to include a nonce in a response even if
4034 the request is nonce-less.
4037 *) Disable stdin buffering in load_cert (apps/apps.c) so that no certs are
4038 skipped when using openssl x509 multiple times on a single input file,
4039 e.g. "(openssl x509 -out cert1; openssl x509 -out cert2) <certs".
4042 *) Make ASN1_UTCTIME_set_string() and ASN1_GENERALIZEDTIME_set_string()
4043 set string type: to handle setting ASN1_TIME structures. Fix ca
4044 utility to correctly initialize revocation date of CRLs.
4047 *) New option SSL_OP_CIPHER_SERVER_PREFERENCE allows the server to override
4048 the clients preferred ciphersuites and rather use its own preferences.
4049 Should help to work around M$ SGC (Server Gated Cryptography) bug in
4050 Internet Explorer by ensuring unchanged hash method during stepup.
4051 (Also replaces the broken/deactivated SSL_OP_NON_EXPORT_FIRST option.)
4054 *) Make mkdef.pl recognise all DECLARE_ASN1 macros, change rijndael
4055 to aes and add a new 'exist' option to print out symbols that don't
4059 *) Additional options to ocsp utility to allow flags to be set and
4060 additional certificates supplied.
4063 *) Add the option -VAfile to 'openssl ocsp', so the user can give the
4064 OCSP client a number of certificate to only verify the response
4068 *) Update Rijndael code to version 3.0 and change EVP AES ciphers to
4069 handle the new API. Currently only ECB, CBC modes supported. Add new
4072 Add TLS AES ciphersuites as described in RFC3268, "Advanced
4073 Encryption Standard (AES) Ciphersuites for Transport Layer
4074 Security (TLS)". (In beta versions of OpenSSL 0.9.7, these were
4075 not enabled by default and were not part of the "ALL" ciphersuite
4076 alias because they were not yet official; they could be
4077 explicitly requested by specifying the "AESdraft" ciphersuite
4078 group alias. In the final release of OpenSSL 0.9.7, the group
4079 alias is called "AES" and is part of "ALL".)
4080 [Ben Laurie, Steve Henson, Bodo Moeller]
4082 *) New function OCSP_copy_nonce() to copy nonce value (if present) from
4083 request to response.
4086 *) Functions for OCSP responders. OCSP_request_onereq_count(),
4087 OCSP_request_onereq_get0(), OCSP_onereq_get0_id() and OCSP_id_get0_info()
4088 extract information from a certificate request. OCSP_response_create()
4089 creates a response and optionally adds a basic response structure.
4090 OCSP_basic_add1_status() adds a complete single response to a basic
4091 response and returns the OCSP_SINGLERESP structure just added (to allow
4092 extensions to be included for example). OCSP_basic_add1_cert() adds a
4093 certificate to a basic response and OCSP_basic_sign() signs a basic
4094 response with various flags. New helper functions ASN1_TIME_check()
4095 (checks validity of ASN1_TIME structure) and ASN1_TIME_to_generalizedtime()
4096 (converts ASN1_TIME to GeneralizedTime).
4099 *) Various new functions. EVP_Digest() combines EVP_Digest{Init,Update,Final}()
4100 in a single operation. X509_get0_pubkey_bitstr() extracts the public_key
4101 structure from a certificate. X509_pubkey_digest() digests the public_key
4102 contents: this is used in various key identifiers.
4105 *) Make sk_sort() tolerate a NULL argument.
4106 [Steve Henson reported by Massimiliano Pala <madwolf@comune.modena.it>]
4108 *) New OCSP verify flag OCSP_TRUSTOTHER. When set the "other" certificates
4109 passed by the function are trusted implicitly. If any of them signed the
4110 response then it is assumed to be valid and is not verified.
4113 *) In PKCS7_set_type() initialise content_type in PKCS7_ENC_CONTENT
4114 to data. This was previously part of the PKCS7 ASN1 code. This
4115 was causing problems with OpenSSL created PKCS#12 and PKCS#7 structures.
4116 [Steve Henson, reported by Kenneth R. Robinette
4117 <support@securenetterm.com>]
4119 *) Add CRYPTO_push_info() and CRYPTO_pop_info() calls to new ASN1
4120 routines: without these tracing memory leaks is very painful.
4121 Fix leaks in PKCS12 and PKCS7 routines.
4124 *) Make X509_time_adj() cope with the new behaviour of ASN1_TIME_new().
4125 Previously it initialised the 'type' argument to V_ASN1_UTCTIME which
4126 effectively meant GeneralizedTime would never be used. Now it
4127 is initialised to -1 but X509_time_adj() now has to check the value
4128 and use ASN1_TIME_set() if the value is not V_ASN1_UTCTIME or
4129 V_ASN1_GENERALIZEDTIME, without this it always uses GeneralizedTime.
4130 [Steve Henson, reported by Kenneth R. Robinette
4131 <support@securenetterm.com>]
4133 *) Fixes to BN_to_ASN1_INTEGER when bn is zero. This would previously
4134 result in a zero length in the ASN1_INTEGER structure which was
4135 not consistent with the structure when d2i_ASN1_INTEGER() was used
4136 and would cause ASN1_INTEGER_cmp() to fail. Enhance s2i_ASN1_INTEGER()
4137 to cope with hex and negative integers. Fix bug in i2a_ASN1_INTEGER()
4138 where it did not print out a minus for negative ASN1_INTEGER.
4141 *) Add summary printout to ocsp utility. The various functions which
4142 convert status values to strings have been renamed to:
4143 OCSP_response_status_str(), OCSP_cert_status_str() and
4144 OCSP_crl_reason_str() and are no longer static. New options
4145 to verify nonce values and to disable verification. OCSP response
4146 printout format cleaned up.
4149 *) Add additional OCSP certificate checks. These are those specified
4150 in RFC2560. This consists of two separate checks: the CA of the
4151 certificate being checked must either be the OCSP signer certificate
4152 or the issuer of the OCSP signer certificate. In the latter case the
4153 OCSP signer certificate must contain the OCSP signing extended key
4154 usage. This check is performed by attempting to match the OCSP
4155 signer or the OCSP signer CA to the issuerNameHash and issuerKeyHash
4156 in the OCSP_CERTID structures of the response.
4159 *) Initial OCSP certificate verification added to OCSP_basic_verify()
4160 and related routines. This uses the standard OpenSSL certificate
4161 verify routines to perform initial checks (just CA validity) and
4162 to obtain the certificate chain. Then additional checks will be
4163 performed on the chain. Currently the root CA is checked to see
4164 if it is explicitly trusted for OCSP signing. This is used to set
4165 a root CA as a global signing root: that is any certificate that
4166 chains to that CA is an acceptable OCSP signing certificate.
4169 *) New '-extfile ...' option to 'openssl ca' for reading X.509v3
4170 extensions from a separate configuration file.
4171 As when reading extensions from the main configuration file,
4172 the '-extensions ...' option may be used for specifying the
4174 [Massimiliano Pala <madwolf@comune.modena.it>]
4176 *) New OCSP utility. Allows OCSP requests to be generated or
4177 read. The request can be sent to a responder and the output
4178 parsed, outputed or printed in text form. Not complete yet:
4179 still needs to check the OCSP response validity.
4182 *) New subcommands for 'openssl ca':
4183 'openssl ca -status <serial>' prints the status of the cert with
4184 the given serial number (according to the index file).
4185 'openssl ca -updatedb' updates the expiry status of certificates
4187 [Massimiliano Pala <madwolf@comune.modena.it>]
4189 *) New '-newreq-nodes' command option to CA.pl. This is like
4190 '-newreq', but calls 'openssl req' with the '-nodes' option
4191 so that the resulting key is not encrypted.
4192 [Damien Miller <djm@mindrot.org>]
4194 *) New configuration for the GNU Hurd.
4195 [Jonathan Bartlett <johnnyb@wolfram.com> via Richard Levitte]
4197 *) Initial code to implement OCSP basic response verify. This
4198 is currently incomplete. Currently just finds the signer's
4199 certificate and verifies the signature on the response.
4202 *) New SSLeay_version code SSLEAY_DIR to determine the compiled-in
4203 value of OPENSSLDIR. This is available via the new '-d' option
4204 to 'openssl version', and is also included in 'openssl version -a'.
4207 *) Allowing defining memory allocation callbacks that will be given
4208 file name and line number information in additional arguments
4209 (a const char* and an int). The basic functionality remains, as
4210 well as the original possibility to just replace malloc(),
4211 realloc() and free() by functions that do not know about these
4212 additional arguments. To register and find out the current
4213 settings for extended allocation functions, the following
4214 functions are provided:
4216 CRYPTO_set_mem_ex_functions
4217 CRYPTO_set_locked_mem_ex_functions
4218 CRYPTO_get_mem_ex_functions
4219 CRYPTO_get_locked_mem_ex_functions
4221 These work the same way as CRYPTO_set_mem_functions and friends.
4222 CRYPTO_get_[locked_]mem_functions now writes 0 where such an
4223 extended allocation function is enabled.
4224 Similarly, CRYPTO_get_[locked_]mem_ex_functions writes 0 where
4225 a conventional allocation function is enabled.
4226 [Richard Levitte, Bodo Moeller]
4228 *) Finish off removing the remaining LHASH function pointer casts.
4229 There should no longer be any prototype-casting required when using
4230 the LHASH abstraction, and any casts that remain are "bugs". See
4231 the callback types and macros at the head of lhash.h for details
4232 (and "OBJ_cleanup" in crypto/objects/obj_dat.c as an example).
4235 *) Add automatic query of EGD sockets in RAND_poll() for the unix variant.
4236 If /dev/[u]random devices are not available or do not return enough
4237 entropy, EGD style sockets (served by EGD or PRNGD) will automatically
4239 The locations /var/run/egd-pool, /dev/egd-pool, /etc/egd-pool, and
4240 /etc/entropy will be queried once each in this sequence, quering stops
4241 when enough entropy was collected without querying more sockets.
4244 *) Change the Unix RAND_poll() variant to be able to poll several
4245 random devices, as specified by DEVRANDOM, until a sufficient amount
4246 of data has been collected. We spend at most 10 ms on each file
4247 (select timeout) and read in non-blocking mode. DEVRANDOM now
4248 defaults to the list "/dev/urandom", "/dev/random", "/dev/srandom"
4249 (previously it was just the string "/dev/urandom"), so on typical
4250 platforms the 10 ms delay will never occur.
4251 Also separate out the Unix variant to its own file, rand_unix.c.
4252 For VMS, there's a currently-empty rand_vms.c.
4255 *) Move OCSP client related routines to ocsp_cl.c. These
4256 provide utility functions which an application needing
4257 to issue a request to an OCSP responder and analyse the
4258 response will typically need: as opposed to those which an
4259 OCSP responder itself would need which will be added later.
4261 OCSP_request_sign() signs an OCSP request with an API similar
4262 to PKCS7_sign(). OCSP_response_status() returns status of OCSP
4263 response. OCSP_response_get1_basic() extracts basic response
4264 from response. OCSP_resp_find_status(): finds and extracts status
4265 information from an OCSP_CERTID structure (which will be created
4266 when the request structure is built). These are built from lower
4267 level functions which work on OCSP_SINGLERESP structures but
4268 wont normally be used unless the application wishes to examine
4269 extensions in the OCSP response for example.
4271 Replace nonce routines with a pair of functions.
4272 OCSP_request_add1_nonce() adds a nonce value and optionally
4273 generates a random value. OCSP_check_nonce() checks the
4274 validity of the nonce in an OCSP response.
4277 *) Change function OCSP_request_add() to OCSP_request_add0_id().
4278 This doesn't copy the supplied OCSP_CERTID and avoids the
4279 need to free up the newly created id. Change return type
4280 to OCSP_ONEREQ to return the internal OCSP_ONEREQ structure.
4281 This can then be used to add extensions to the request.
4282 Deleted OCSP_request_new(), since most of its functionality
4283 is now in OCSP_REQUEST_new() (and the case insensitive name
4284 clash) apart from the ability to set the request name which
4285 will be added elsewhere.
4288 *) Update OCSP API. Remove obsolete extensions argument from
4289 various functions. Extensions are now handled using the new
4290 OCSP extension code. New simple OCSP HTTP function which
4291 can be used to send requests and parse the response.
4294 *) Fix the PKCS#7 (S/MIME) code to work with new ASN1. Two new
4295 ASN1_ITEM structures help with sign and verify. PKCS7_ATTR_SIGN
4296 uses the special reorder version of SET OF to sort the attributes
4297 and reorder them to match the encoded order. This resolves a long
4298 standing problem: a verify on a PKCS7 structure just after signing
4299 it used to fail because the attribute order did not match the
4300 encoded order. PKCS7_ATTR_VERIFY does not reorder the attributes:
4301 it uses the received order. This is necessary to tolerate some broken
4302 software that does not order SET OF. This is handled by encoding
4303 as a SEQUENCE OF but using implicit tagging (with UNIVERSAL class)
4304 to produce the required SET OF.
4307 *) Have mk1mf.pl generate the macros OPENSSL_BUILD_SHLIBCRYPTO and
4308 OPENSSL_BUILD_SHLIBSSL and use them appropriately in the header
4309 files to get correct declarations of the ASN.1 item variables.
4312 *) Rewrite of PKCS#12 code to use new ASN1 functionality. Replace many
4313 PKCS#12 macros with real functions. Fix two unrelated ASN1 bugs:
4314 asn1_check_tlen() would sometimes attempt to use 'ctx' when it was
4315 NULL and ASN1_TYPE was not dereferenced properly in asn1_ex_c2i().
4316 New ASN1 macro: DECLARE_ASN1_ITEM() which just declares the relevant
4317 ASN1_ITEM and no wrapper functions.
4320 *) New functions or ASN1_item_d2i_fp() and ASN1_item_d2i_bio(). These
4321 replace the old function pointer based I/O routines. Change most of
4322 the *_d2i_bio() and *_d2i_fp() functions to use these.
4325 *) Enhance mkdef.pl to be more accepting about spacing in C preprocessor
4326 lines, recognice more "algorithms" that can be deselected, and make
4327 it complain about algorithm deselection that isn't recognised.
4330 *) New ASN1 functions to handle dup, sign, verify, digest, pack and
4331 unpack operations in terms of ASN1_ITEM. Modify existing wrappers
4332 to use new functions. Add NO_ASN1_OLD which can be set to remove
4333 some old style ASN1 functions: this can be used to determine if old
4334 code will still work when these eventually go away.
4337 *) New extension functions for OCSP structures, these follow the
4338 same conventions as certificates and CRLs.
4341 *) New function X509V3_add1_i2d(). This automatically encodes and
4342 adds an extension. Its behaviour can be customised with various
4343 flags to append, replace or delete. Various wrappers added for
4344 certifcates and CRLs.
4347 *) Fix to avoid calling the underlying ASN1 print routine when
4348 an extension cannot be parsed. Correct a typo in the
4349 OCSP_SERVICELOC extension. Tidy up print OCSP format.
4352 *) Make mkdef.pl parse some of the ASN1 macros and add apropriate
4353 entries for variables.
4356 *) Add functionality to apps/openssl.c for detecting locking
4357 problems: As the program is single-threaded, all we have
4358 to do is register a locking callback using an array for
4359 storing which locks are currently held by the program.
4362 *) Use a lock around the call to CRYPTO_get_ex_new_index() in
4363 SSL_get_ex_data_X509_STORE_idx(), which is used in
4364 ssl_verify_cert_chain() and thus can be called at any time
4365 during TLS/SSL handshakes so that thread-safety is essential.
4366 Unfortunately, the ex_data design is not at all suited
4367 for multi-threaded use, so it probably should be abolished.
4370 *) Added Broadcom "ubsec" ENGINE to OpenSSL.
4371 [Broadcom, tweaked and integrated by Geoff Thorpe]
4373 *) Move common extension printing code to new function
4374 X509V3_print_extensions(). Reorganise OCSP print routines and
4375 implement some needed OCSP ASN1 functions. Add OCSP extensions.
4378 *) New function X509_signature_print() to remove duplication in some
4382 *) Add a special meaning when SET OF and SEQUENCE OF flags are both
4383 set (this was treated exactly the same as SET OF previously). This
4384 is used to reorder the STACK representing the structure to match the
4385 encoding. This will be used to get round a problem where a PKCS7
4386 structure which was signed could not be verified because the STACK
4387 order did not reflect the encoded order.
4390 *) Reimplement the OCSP ASN1 module using the new code.
4393 *) Update the X509V3 code to permit the use of an ASN1_ITEM structure
4394 for its ASN1 operations. The old style function pointers still exist
4395 for now but they will eventually go away.
4398 *) Merge in replacement ASN1 code from the ASN1 branch. This almost
4399 completely replaces the old ASN1 functionality with a table driven
4400 encoder and decoder which interprets an ASN1_ITEM structure describing
4401 the ASN1 module. Compatibility with the existing ASN1 API (i2d,d2i) is
4402 largely maintained. Almost all of the old asn1_mac.h macro based ASN1
4403 has also been converted to the new form.
4406 *) Change BN_mod_exp_recp so that negative moduli are tolerated
4407 (the sign is ignored). Similarly, ignore the sign in BN_MONT_CTX_set
4408 so that BN_mod_exp_mont and BN_mod_exp_mont_word work
4409 for negative moduli.
4412 *) Fix BN_uadd and BN_usub: Always return non-negative results instead
4413 of not touching the result's sign bit.
4416 *) BN_div bugfix: If the result is 0, the sign (res->neg) must not be
4420 *) Changed the LHASH code to use prototypes for callbacks, and created
4421 macros to declare and implement thin (optionally static) functions
4422 that provide type-safety and avoid function pointer casting for the
4423 type-specific callbacks.
4426 *) Added Kerberos Cipher Suites to be used with TLS, as written in
4428 [Veers Staats <staatsvr@asc.hpc.mil>,
4429 Jeffrey Altman <jaltman@columbia.edu>, via Richard Levitte]
4431 *) Reformat the FAQ so the different questions and answers can be divided
4432 in sections depending on the subject.
4435 *) Have the zlib compression code load ZLIB.DLL dynamically under
4439 *) New function BN_mod_sqrt for computing square roots modulo a prime
4440 (using the probabilistic Tonelli-Shanks algorithm unless
4441 p == 3 (mod 4) or p == 5 (mod 8), which are cases that can
4442 be handled deterministically).
4443 [Lenka Fibikova <fibikova@exp-math.uni-essen.de>, Bodo Moeller]
4445 *) Make BN_mod_inverse faster by explicitly handling small quotients
4446 in the Euclid loop. (Speed gain about 20% for small moduli [256 or
4447 512 bits], about 30% for larger ones [1024 or 2048 bits].)
4450 *) New function BN_kronecker.
4453 *) Fix BN_gcd so that it works on negative inputs; the result is
4454 positive unless both parameters are zero.
4455 Previously something reasonably close to an infinite loop was
4456 possible because numbers could be growing instead of shrinking
4457 in the implementation of Euclid's algorithm.
4460 *) Fix BN_is_word() and BN_is_one() macros to take into account the
4461 sign of the number in question.
4463 Fix BN_is_word(a,w) to work correctly for w == 0.
4465 The old BN_is_word(a,w) macro is now called BN_abs_is_word(a,w)
4466 because its test if the absolute value of 'a' equals 'w'.
4467 Note that BN_abs_is_word does *not* handle w == 0 reliably;
4468 it exists mostly for use in the implementations of BN_is_zero(),
4469 BN_is_one(), and BN_is_word().
4472 *) New function BN_swap.
4475 *) Use BN_nnmod instead of BN_mod in crypto/bn/bn_exp.c so that
4476 the exponentiation functions are more likely to produce reasonable
4477 results on negative inputs.
4480 *) Change BN_mod_mul so that the result is always non-negative.
4481 Previously, it could be negative if one of the factors was negative;
4482 I don't think anyone really wanted that behaviour.
4485 *) Move BN_mod_... functions into new file crypto/bn/bn_mod.c
4486 (except for exponentiation, which stays in crypto/bn/bn_exp.c,
4487 and BN_mod_mul_reciprocal, which stays in crypto/bn/bn_recp.c)
4488 and add new functions:
4497 BN_mod_lshift1_quick
4501 These functions always generate non-negative results.
4503 BN_nnmod otherwise is like BN_mod (if BN_mod computes a remainder r
4504 such that |m| < r < 0, BN_nnmod will output rem + |m| instead).
4506 BN_mod_XXX_quick(r, a, [b,] m) generates the same result as
4507 BN_mod_XXX(r, a, [b,] m, ctx), but requires that a [and b]
4508 be reduced modulo m.
4509 [Lenka Fibikova <fibikova@exp-math.uni-essen.de>, Bodo Moeller]
4512 The following entry accidentily appeared in the CHANGES file
4513 distributed with OpenSSL 0.9.7. The modifications described in
4514 it do *not* apply to OpenSSL 0.9.7.
4516 *) Remove a few calls to bn_wexpand() in BN_sqr() (the one in there
4517 was actually never needed) and in BN_mul(). The removal in BN_mul()
4518 required a small change in bn_mul_part_recursive() and the addition
4519 of the functions bn_cmp_part_words(), bn_sub_part_words() and
4520 bn_add_part_words(), which do the same thing as bn_cmp_words(),
4521 bn_sub_words() and bn_add_words() except they take arrays with
4526 *) In 'openssl passwd', verify passwords read from the terminal
4527 unless the '-salt' option is used (which usually means that
4528 verification would just waste user's time since the resulting
4529 hash is going to be compared with some given password hash)
4530 or the new '-noverify' option is used.
4532 This is an incompatible change, but it does not affect
4533 non-interactive use of 'openssl passwd' (passwords on the command
4534 line, '-stdin' option, '-in ...' option) and thus should not
4538 *) Remove all references to RSAref, since there's no more need for it.
4541 *) Make DSO load along a path given through an environment variable
4542 (SHLIB_PATH) with shl_load().
4545 *) Constify the ENGINE code as a result of BIGNUM constification.
4546 Also constify the RSA code and most things related to it. In a
4547 few places, most notable in the depth of the ASN.1 code, ugly
4548 casts back to non-const were required (to be solved at a later
4552 *) Make it so the openssl application has all engines loaded by default.
4555 *) Constify the BIGNUM routines a little more.
4558 *) Add the following functions:
4560 ENGINE_load_cswift()
4562 ENGINE_load_atalla()
4564 ENGINE_load_builtin_engines()
4566 That way, an application can itself choose if external engines that
4567 are built-in in OpenSSL shall ever be used or not. The benefit is
4568 that applications won't have to be linked with libdl or other dso
4569 libraries unless it's really needed.
4571 Changed 'openssl engine' to load all engines on demand.
4572 Changed the engine header files to avoid the duplication of some
4573 declarations (they differed!).
4576 *) 'openssl engine' can now list capabilities.
4579 *) Better error reporting in 'openssl engine'.
4582 *) Never call load_dh_param(NULL) in s_server.
4585 *) Add engine application. It can currently list engines by name and
4586 identity, and test if they are actually available.
4589 *) Improve RPM specification file by forcing symbolic linking and making
4590 sure the installed documentation is also owned by root.root.
4591 [Damien Miller <djm@mindrot.org>]
4593 *) Give the OpenSSL applications more possibilities to make use of
4594 keys (public as well as private) handled by engines.
4597 *) Add OCSP code that comes from CertCo.
4600 *) Add VMS support for the Rijndael code.
4603 *) Added untested support for Nuron crypto accelerator.
4606 *) Add support for external cryptographic devices. This code was
4607 previously distributed separately as the "engine" branch.
4608 [Geoff Thorpe, Richard Levitte]
4610 *) Rework the filename-translation in the DSO code. It is now possible to
4611 have far greater control over how a "name" is turned into a filename
4612 depending on the operating environment and any oddities about the
4613 different shared library filenames on each system.
4616 *) Support threads on FreeBSD-elf in Configure.
4619 *) Fix for SHA1 assembly problem with MASM: it produces
4620 warnings about corrupt line number information when assembling
4621 with debugging information. This is caused by the overlapping
4623 [Bernd Matthes <mainbug@celocom.de>, Steve Henson]
4626 NCONF_get_number() has no error checking at all. As a replacement,
4627 NCONF_get_number_e() is defined (_e for "error checking") and is
4628 promoted strongly. The old NCONF_get_number is kept around for
4629 binary backward compatibility.
4630 Make it possible for methods to load from something other than a BIO,
4631 by providing a function pointer that is given a name instead of a BIO.
4632 For example, this could be used to load configuration data from an
4636 *) Fix for non blocking accept BIOs. Added new I/O special reason
4637 BIO_RR_ACCEPT to cover this case. Previously use of accept BIOs
4638 with non blocking I/O was not possible because no retry code was
4639 implemented. Also added new SSL code SSL_WANT_ACCEPT to cover
4643 *) Added the beginnings of Rijndael support.
4646 *) Fix for bug in DirectoryString mask setting. Add support for
4647 X509_NAME_print_ex() in 'req' and X509_print_ex() function
4648 to allow certificate printing to more controllable, additional
4649 'certopt' option to 'x509' to allow new printing options to be
4653 *) Clean old EAY MD5 hack from e_os.h.
4656 Changes between 0.9.6l and 0.9.6m [17 Mar 2004]
4658 *) Fix null-pointer assignment in do_change_cipher_spec() revealed
4659 by using the Codenomicon TLS Test Tool (CVE-2004-0079)
4660 [Joe Orton, Steve Henson]
4662 Changes between 0.9.6k and 0.9.6l [04 Nov 2003]
4664 *) Fix additional bug revealed by the NISCC test suite:
4666 Stop bug triggering large recursion when presented with
4667 certain ASN.1 tags (CVE-2003-0851)
4670 Changes between 0.9.6j and 0.9.6k [30 Sep 2003]
4672 *) Fix various bugs revealed by running the NISCC test suite:
4674 Stop out of bounds reads in the ASN1 code when presented with
4675 invalid tags (CVE-2003-0543 and CVE-2003-0544).
4677 If verify callback ignores invalid public key errors don't try to check
4678 certificate signature with the NULL public key.
4682 *) In ssl3_accept() (ssl/s3_srvr.c) only accept a client certificate
4683 if the server requested one: as stated in TLS 1.0 and SSL 3.0
4687 *) In ssl3_get_client_hello() (ssl/s3_srvr.c), tolerate additional
4688 extra data after the compression methods not only for TLS 1.0
4689 but also for SSL 3.0 (as required by the specification).
4690 [Bodo Moeller; problem pointed out by Matthias Loepfe]
4692 *) Change X509_certificate_type() to mark the key as exported/exportable
4693 when it's 512 *bits* long, not 512 bytes.
4696 Changes between 0.9.6i and 0.9.6j [10 Apr 2003]
4698 *) Countermeasure against the Klima-Pokorny-Rosa extension of
4699 Bleichbacher's attack on PKCS #1 v1.5 padding: treat
4700 a protocol version number mismatch like a decryption error
4701 in ssl3_get_client_key_exchange (ssl/s3_srvr.c).
4704 *) Turn on RSA blinding by default in the default implementation
4705 to avoid a timing attack. Applications that don't want it can call
4706 RSA_blinding_off() or use the new flag RSA_FLAG_NO_BLINDING.
4707 They would be ill-advised to do so in most cases.
4708 [Ben Laurie, Steve Henson, Geoff Thorpe, Bodo Moeller]
4710 *) Change RSA blinding code so that it works when the PRNG is not
4711 seeded (in this case, the secret RSA exponent is abused as
4712 an unpredictable seed -- if it is not unpredictable, there
4713 is no point in blinding anyway). Make RSA blinding thread-safe
4714 by remembering the creator's thread ID in rsa->blinding and
4715 having all other threads use local one-time blinding factors
4716 (this requires more computation than sharing rsa->blinding, but
4717 avoids excessive locking; and if an RSA object is not shared
4718 between threads, blinding will still be very fast).
4721 Changes between 0.9.6h and 0.9.6i [19 Feb 2003]
4723 *) In ssl3_get_record (ssl/s3_pkt.c), minimize information leaked
4724 via timing by performing a MAC computation even if incorrrect
4725 block cipher padding has been found. This is a countermeasure
4726 against active attacks where the attacker has to distinguish
4727 between bad padding and a MAC verification error. (CVE-2003-0078)
4729 [Bodo Moeller; problem pointed out by Brice Canvel (EPFL),
4730 Alain Hiltgen (UBS), Serge Vaudenay (EPFL), and
4731 Martin Vuagnoux (EPFL, Ilion)]
4733 Changes between 0.9.6g and 0.9.6h [5 Dec 2002]
4735 *) New function OPENSSL_cleanse(), which is used to cleanse a section of
4736 memory from it's contents. This is done with a counter that will
4737 place alternating values in each byte. This can be used to solve
4738 two issues: 1) the removal of calls to memset() by highly optimizing
4739 compilers, and 2) cleansing with other values than 0, since those can
4740 be read through on certain media, for example a swap space on disk.
4743 *) Bugfix: client side session caching did not work with external caching,
4744 because the session->cipher setting was not restored when reloading
4745 from the external cache. This problem was masked, when
4746 SSL_OP_NETSCAPE_REUSE_CIPHER_CHANGE_BUG (part of SSL_OP_ALL) was set.
4747 (Found by Steve Haslam <steve@araqnid.ddts.net>.)
4750 *) Fix client_certificate (ssl/s2_clnt.c): The permissible total
4751 length of the REQUEST-CERTIFICATE message is 18 .. 34, not 17 .. 33.
4752 [Zeev Lieber <zeev-l@yahoo.com>]
4754 *) Undo an undocumented change introduced in 0.9.6e which caused
4755 repeated calls to OpenSSL_add_all_ciphers() and
4756 OpenSSL_add_all_digests() to be ignored, even after calling
4760 *) Change the default configuration reader to deal with last line not
4761 being properly terminated.
4764 *) Change X509_NAME_cmp() so it applies the special rules on handling
4765 DN values that are of type PrintableString, as well as RDNs of type
4766 emailAddress where the value has the type ia5String.
4767 [stefank@valicert.com via Richard Levitte]
4769 *) Add a SSL_SESS_CACHE_NO_INTERNAL_STORE flag to take over half
4770 the job SSL_SESS_CACHE_NO_INTERNAL_LOOKUP was inconsistently
4771 doing, define a new flag (SSL_SESS_CACHE_NO_INTERNAL) to be
4772 the bitwise-OR of the two for use by the majority of applications
4773 wanting this behaviour, and update the docs. The documented
4774 behaviour and actual behaviour were inconsistent and had been
4775 changing anyway, so this is more a bug-fix than a behavioural
4777 [Geoff Thorpe, diagnosed by Nadav Har'El]
4779 *) Don't impose a 16-byte length minimum on session IDs in ssl/s3_clnt.c
4780 (the SSL 3.0 and TLS 1.0 specifications allow any length up to 32 bytes).
4783 *) Fix initialization code race conditions in
4784 SSLv23_method(), SSLv23_client_method(), SSLv23_server_method(),
4785 SSLv2_method(), SSLv2_client_method(), SSLv2_server_method(),
4786 SSLv3_method(), SSLv3_client_method(), SSLv3_server_method(),
4787 TLSv1_method(), TLSv1_client_method(), TLSv1_server_method(),
4788 ssl2_get_cipher_by_char(),
4789 ssl3_get_cipher_by_char().
4790 [Patrick McCormick <patrick@tellme.com>, Bodo Moeller]
4792 *) Reorder cleanup sequence in SSL_CTX_free(): only remove the ex_data after
4793 the cached sessions are flushed, as the remove_cb() might use ex_data
4794 contents. Bug found by Sam Varshavchik <mrsam@courier-mta.com>
4795 (see [openssl.org #212]).
4796 [Geoff Thorpe, Lutz Jaenicke]
4798 *) Fix typo in OBJ_txt2obj which incorrectly passed the content
4799 length, instead of the encoding length to d2i_ASN1_OBJECT.
4802 Changes between 0.9.6f and 0.9.6g [9 Aug 2002]
4804 *) [In 0.9.6g-engine release:]
4805 Fix crypto/engine/vendor_defns/cswift.h for WIN32 (use '_stdcall').
4806 [Lynn Gazis <lgazis@rainbow.com>]
4808 Changes between 0.9.6e and 0.9.6f [8 Aug 2002]
4810 *) Fix ASN1 checks. Check for overflow by comparing with LONG_MAX
4811 and get fix the header length calculation.
4812 [Florian Weimer <Weimer@CERT.Uni-Stuttgart.DE>,
4813 Alon Kantor <alonk@checkpoint.com> (and others),
4816 *) Use proper error handling instead of 'assertions' in buffer
4817 overflow checks added in 0.9.6e. This prevents DoS (the
4818 assertions could call abort()).
4819 [Arne Ansper <arne@ats.cyber.ee>, Bodo Moeller]
4821 Changes between 0.9.6d and 0.9.6e [30 Jul 2002]
4823 *) Add various sanity checks to asn1_get_length() to reject
4824 the ASN1 length bytes if they exceed sizeof(long), will appear
4825 negative or the content length exceeds the length of the
4827 [Steve Henson, Adi Stav <stav@mercury.co.il>, James Yonan <jim@ntlp.com>]
4829 *) Fix cipher selection routines: ciphers without encryption had no flags
4830 for the cipher strength set and where therefore not handled correctly
4831 by the selection routines (PR #130).
4834 *) Fix EVP_dsa_sha macro.
4838 SSL_OP_DONT_INSERT_EMPTY_FRAGMENTS
4839 for disabling the SSL 3.0/TLS 1.0 CBC vulnerability countermeasure
4840 that was added in OpenSSL 0.9.6d.
4842 As the countermeasure turned out to be incompatible with some
4843 broken SSL implementations, the new option is part of SSL_OP_ALL.
4844 SSL_OP_ALL is usually employed when compatibility with weird SSL
4845 implementations is desired (e.g. '-bugs' option to 's_client' and
4846 's_server'), so the new option is automatically set in many
4850 *) Changes in security patch:
4852 Changes marked "(CHATS)" were sponsored by the Defense Advanced
4853 Research Projects Agency (DARPA) and Air Force Research Laboratory,
4854 Air Force Materiel Command, USAF, under agreement number
4857 *) Add various sanity checks to asn1_get_length() to reject
4858 the ASN1 length bytes if they exceed sizeof(long), will appear
4859 negative or the content length exceeds the length of the
4860 supplied buffer. (CVE-2002-0659)
4861 [Steve Henson, Adi Stav <stav@mercury.co.il>, James Yonan <jim@ntlp.com>]
4863 *) Assertions for various potential buffer overflows, not known to
4865 [Ben Laurie (CHATS)]
4867 *) Various temporary buffers to hold ASCII versions of integers were
4868 too small for 64 bit platforms. (CVE-2002-0655)
4869 [Matthew Byng-Maddick <mbm@aldigital.co.uk> and Ben Laurie (CHATS)>
4871 *) Remote buffer overflow in SSL3 protocol - an attacker could
4872 supply an oversized session ID to a client. (CVE-2002-0656)
4873 [Ben Laurie (CHATS)]
4875 *) Remote buffer overflow in SSL2 protocol - an attacker could
4876 supply an oversized client master key. (CVE-2002-0656)
4877 [Ben Laurie (CHATS)]
4879 Changes between 0.9.6c and 0.9.6d [9 May 2002]
4881 *) Fix crypto/asn1/a_sign.c so that 'parameters' is omitted (not
4882 encoded as NULL) with id-dsa-with-sha1.
4883 [Nils Larsch <nla@trustcenter.de>; problem pointed out by Bodo Moeller]
4885 *) Check various X509_...() return values in apps/req.c.
4886 [Nils Larsch <nla@trustcenter.de>]
4888 *) Fix BASE64 decode (EVP_DecodeUpdate) for data with CR/LF ended lines:
4889 an end-of-file condition would erronously be flagged, when the CRLF
4890 was just at the end of a processed block. The bug was discovered when
4891 processing data through a buffering memory BIO handing the data to a
4892 BASE64-decoding BIO. Bug fund and patch submitted by Pavel Tsekov
4893 <ptsekov@syntrex.com> and Nedelcho Stanev.
4896 *) Implement a countermeasure against a vulnerability recently found
4897 in CBC ciphersuites in SSL 3.0/TLS 1.0: Send an empty fragment
4898 before application data chunks to avoid the use of known IVs
4899 with data potentially chosen by the attacker.
4902 *) Fix length checks in ssl3_get_client_hello().
4905 *) TLS/SSL library bugfix: use s->s3->in_read_app_data differently
4906 to prevent ssl3_read_internal() from incorrectly assuming that
4907 ssl3_read_bytes() found application data while handshake
4908 processing was enabled when in fact s->s3->in_read_app_data was
4909 merely automatically cleared during the initial handshake.
4910 [Bodo Moeller; problem pointed out by Arne Ansper <arne@ats.cyber.ee>]
4912 *) Fix object definitions for Private and Enterprise: they were not
4913 recognized in their shortname (=lowercase) representation. Extend
4914 obj_dat.pl to issue an error when using undefined keywords instead
4915 of silently ignoring the problem (Svenning Sorensen
4916 <sss@sss.dnsalias.net>).
4919 *) Fix DH_generate_parameters() so that it works for 'non-standard'
4920 generators, i.e. generators other than 2 and 5. (Previously, the
4921 code did not properly initialise the 'add' and 'rem' values to
4922 BN_generate_prime().)
4924 In the new general case, we do not insist that 'generator' is
4925 actually a primitive root: This requirement is rather pointless;
4926 a generator of the order-q subgroup is just as good, if not
4930 *) Map new X509 verification errors to alerts. Discovered and submitted by
4931 Tom Wu <tom@arcot.com>.
4934 *) Fix ssl3_pending() (ssl/s3_lib.c) to prevent SSL_pending() from
4935 returning non-zero before the data has been completely received
4936 when using non-blocking I/O.
4937 [Bodo Moeller; problem pointed out by John Hughes]
4939 *) Some of the ciphers missed the strength entry (SSL_LOW etc).
4940 [Ben Laurie, Lutz Jaenicke]
4942 *) Fix bug in SSL_clear(): bad sessions were not removed (found by
4943 Yoram Zahavi <YoramZ@gilian.com>).
4946 *) Add information about CygWin 1.3 and on, and preserve proper
4947 configuration for the versions before that.
4948 [Corinna Vinschen <vinschen@redhat.com> and Richard Levitte]
4950 *) Make removal from session cache (SSL_CTX_remove_session()) more robust:
4951 check whether we deal with a copy of a session and do not delete from
4952 the cache in this case. Problem reported by "Izhar Shoshani Levi"
4953 <izhar@checkpoint.com>.
4956 *) Do not store session data into the internal session cache, if it
4957 is never intended to be looked up (SSL_SESS_CACHE_NO_INTERNAL_LOOKUP
4958 flag is set). Proposed by Aslam <aslam@funk.com>.
4961 *) Have ASN1_BIT_STRING_set_bit() really clear a bit when the requested
4965 *) [In 0.9.6d-engine release:]
4966 Fix a crashbug and a logic bug in hwcrhk_load_pubkey().
4967 [Toomas Kiisk <vix@cyber.ee> via Richard Levitte]
4969 *) Add the configuration target linux-s390x.
4970 [Neale Ferguson <Neale.Ferguson@SoftwareAG-USA.com> via Richard Levitte]
4972 *) The earlier bugfix for the SSL3_ST_SW_HELLO_REQ_C case of
4973 ssl3_accept (ssl/s3_srvr.c) incorrectly used a local flag
4974 variable as an indication that a ClientHello message has been
4975 received. As the flag value will be lost between multiple
4976 invocations of ssl3_accept when using non-blocking I/O, the
4977 function may not be aware that a handshake has actually taken
4978 place, thus preventing a new session from being added to the
4981 To avoid this problem, we now set s->new_session to 2 instead of
4982 using a local variable.
4983 [Lutz Jaenicke, Bodo Moeller]
4985 *) Bugfix: Return -1 from ssl3_get_server_done (ssl3/s3_clnt.c)
4986 if the SSL_R_LENGTH_MISMATCH error is detected.
4987 [Geoff Thorpe, Bodo Moeller]
4989 *) New 'shared_ldflag' column in Configure platform table.
4992 *) Fix EVP_CIPHER_mode macro.
4993 ["Dan S. Camper" <dan@bti.net>]
4995 *) Fix ssl3_read_bytes (ssl/s3_pkt.c): To ignore messages of unknown
4996 type, we must throw them away by setting rr->length to 0.
4997 [D P Chang <dpc@qualys.com>]
4999 Changes between 0.9.6b and 0.9.6c [21 dec 2001]
5001 *) Fix BN_rand_range bug pointed out by Dominikus Scherkl
5002 <Dominikus.Scherkl@biodata.com>. (The previous implementation
5003 worked incorrectly for those cases where range = 10..._2 and
5004 3*range is two bits longer than range.)
5007 *) Only add signing time to PKCS7 structures if it is not already
5011 *) Fix crypto/objects/objects.h: "ld-ce" should be "id-ce",
5012 OBJ_ld_ce should be OBJ_id_ce.
5013 Also some ip-pda OIDs in crypto/objects/objects.txt were
5014 incorrect (cf. RFC 3039).
5015 [Matt Cooper, Frederic Giudicelli, Bodo Moeller]
5017 *) Release CRYPTO_LOCK_DYNLOCK when CRYPTO_destroy_dynlockid()
5018 returns early because it has nothing to do.
5019 [Andy Schneider <andy.schneider@bjss.co.uk>]
5021 *) [In 0.9.6c-engine release:]
5022 Fix mutex callback return values in crypto/engine/hw_ncipher.c.
5023 [Andy Schneider <andy.schneider@bjss.co.uk>]
5025 *) [In 0.9.6c-engine release:]
5026 Add support for Cryptographic Appliance's keyserver technology.
5027 (Use engine 'keyclient')
5028 [Cryptographic Appliances and Geoff Thorpe]
5030 *) Add a configuration entry for OS/390 Unix. The C compiler 'c89'
5031 is called via tools/c89.sh because arguments have to be
5032 rearranged (all '-L' options must appear before the first object
5034 [Richard Shapiro <rshapiro@abinitio.com>]
5036 *) [In 0.9.6c-engine release:]
5037 Add support for Broadcom crypto accelerator cards, backported
5039 [Broadcom, Nalin Dahyabhai <nalin@redhat.com>, Mark Cox]
5041 *) [In 0.9.6c-engine release:]
5042 Add support for SureWare crypto accelerator cards from
5043 Baltimore Technologies. (Use engine 'sureware')
5044 [Baltimore Technologies and Mark Cox]
5046 *) [In 0.9.6c-engine release:]
5047 Add support for crypto accelerator cards from Accelerated
5048 Encryption Processing, www.aep.ie. (Use engine 'aep')
5049 [AEP Inc. and Mark Cox]
5051 *) Add a configuration entry for gcc on UnixWare.
5052 [Gary Benson <gbenson@redhat.com>]
5054 *) Change ssl/s2_clnt.c and ssl/s2_srvr.c so that received handshake
5055 messages are stored in a single piece (fixed-length part and
5056 variable-length part combined) and fix various bugs found on the way.
5059 *) Disable caching in BIO_gethostbyname(), directly use gethostbyname()
5060 instead. BIO_gethostbyname() does not know what timeouts are
5061 appropriate, so entries would stay in cache even when they have
5063 [Bodo Moeller; problem pointed out by Rich Salz <rsalz@zolera.com>
5065 *) Change ssl23_get_client_hello (ssl/s23_srvr.c) behaviour when
5066 faced with a pathologically small ClientHello fragment that does
5067 not contain client_version: Instead of aborting with an error,
5068 simply choose the highest available protocol version (i.e.,
5069 TLS 1.0 unless it is disabled). In practice, ClientHello
5070 messages are never sent like this, but this change gives us
5071 strictly correct behaviour at least for TLS.
5074 *) Fix SSL handshake functions and SSL_clear() such that SSL_clear()
5075 never resets s->method to s->ctx->method when called from within
5076 one of the SSL handshake functions.
5077 [Bodo Moeller; problem pointed out by Niko Baric]
5079 *) In ssl3_get_client_hello (ssl/s3_srvr.c), generate a fatal alert
5080 (sent using the client's version number) if client_version is
5081 smaller than the protocol version in use. Also change
5082 ssl23_get_client_hello (ssl/s23_srvr.c) to select TLS 1.0 if
5083 the client demanded SSL 3.0 but only TLS 1.0 is enabled; then
5084 the client will at least see that alert.
5087 *) Fix ssl3_get_message (ssl/s3_both.c) to handle message fragmentation
5091 *) Avoid infinite loop in ssl3_get_message (ssl/s3_both.c) if a
5092 client receives HelloRequest while in a handshake.
5093 [Bodo Moeller; bug noticed by Andy Schneider <andy.schneider@bjss.co.uk>]
5095 *) Bugfix in ssl3_accept (ssl/s3_srvr.c): Case SSL3_ST_SW_HELLO_REQ_C
5096 should end in 'break', not 'goto end' which circuments various
5097 cleanups done in state SSL_ST_OK. But session related stuff
5098 must be disabled for SSL_ST_OK in the case that we just sent a
5101 Also avoid some overhead by not calling ssl_init_wbio_buffer()
5102 before just sending a HelloRequest.
5103 [Bodo Moeller, Eric Rescorla <ekr@rtfm.com>]
5105 *) Fix ssl/s3_enc.c, ssl/t1_enc.c and ssl/s3_pkt.c so that we don't
5106 reveal whether illegal block cipher padding was found or a MAC
5107 verification error occured. (Neither SSLerr() codes nor alerts
5108 are directly visible to potential attackers, but the information
5109 may leak via logfiles.)
5111 Similar changes are not required for the SSL 2.0 implementation
5112 because the number of padding bytes is sent in clear for SSL 2.0,
5113 and the extra bytes are just ignored. However ssl/s2_pkt.c
5114 failed to verify that the purported number of padding bytes is in
5118 *) Add OpenUNIX-8 support including shared libraries
5119 (Boyd Lynn Gerber <gerberb@zenez.com>).
5122 *) Improve RSA_padding_check_PKCS1_OAEP() check again to avoid
5123 'wristwatch attack' using huge encoding parameters (cf.
5124 James H. Manger's CRYPTO 2001 paper). Note that the
5125 RSA_PKCS1_OAEP_PADDING case of RSA_private_decrypt() does not use
5126 encoding parameters and hence was not vulnerable.
5129 *) BN_sqr() bug fix.
5130 [Ulf Möller, reported by Jim Ellis <jim.ellis@cavium.com>]
5132 *) Rabin-Miller test analyses assume uniformly distributed witnesses,
5133 so use BN_pseudo_rand_range() instead of using BN_pseudo_rand()
5134 followed by modular reduction.
5135 [Bodo Moeller; pointed out by Adam Young <AYoung1@NCSUS.JNJ.COM>]
5137 *) Add BN_pseudo_rand_range() with obvious functionality: BN_rand_range()
5138 equivalent based on BN_pseudo_rand() instead of BN_rand().
5141 *) s3_srvr.c: allow sending of large client certificate lists (> 16 kB).
5142 This function was broken, as the check for a new client hello message
5143 to handle SGC did not allow these large messages.
5144 (Tracked down by "Douglas E. Engert" <deengert@anl.gov>.)
5147 *) Add alert descriptions for TLSv1 to SSL_alert_desc_string[_long]().
5150 *) Fix buggy behaviour of BIO_get_num_renegotiates() and BIO_ctrl()
5151 for BIO_C_GET_WRITE_BUF_SIZE ("Stephen Hinton" <shinton@netopia.com>).
5154 *) Rework the configuration and shared library support for Tru64 Unix.
5155 The configuration part makes use of modern compiler features and
5156 still retains old compiler behavior for those that run older versions
5157 of the OS. The shared library support part includes a variant that
5158 uses the RPATH feature, and is available through the special
5159 configuration target "alpha-cc-rpath", which will never be selected
5161 [Tim Mooney <mooney@dogbert.cc.ndsu.NoDak.edu> via Richard Levitte]
5163 *) In ssl3_get_key_exchange (ssl/s3_clnt.c), call ssl3_get_message()
5164 with the same message size as in ssl3_get_certificate_request().
5165 Otherwise, if no ServerKeyExchange message occurs, CertificateRequest
5166 messages might inadvertently be reject as too long.
5167 [Petr Lampa <lampa@fee.vutbr.cz>]
5169 *) Enhanced support for IA-64 Unix platforms (well, Linux and HP-UX).
5172 *) Modified SSL library such that the verify_callback that has been set
5173 specificly for an SSL object with SSL_set_verify() is actually being
5174 used. Before the change, a verify_callback set with this function was
5175 ignored and the verify_callback() set in the SSL_CTX at the time of
5176 the call was used. New function X509_STORE_CTX_set_verify_cb() introduced
5177 to allow the necessary settings.
5180 *) Initialize static variable in crypto/dsa/dsa_lib.c and crypto/dh/dh_lib.c
5181 explicitly to NULL, as at least on Solaris 8 this seems not always to be
5182 done automatically (in contradiction to the requirements of the C
5183 standard). This made problems when used from OpenSSH.
5186 *) In OpenSSL 0.9.6a and 0.9.6b, crypto/dh/dh_key.c ignored
5187 dh->length and always used
5189 BN_rand_range(priv_key, dh->p).
5191 BN_rand_range() is not necessary for Diffie-Hellman, and this
5192 specific range makes Diffie-Hellman unnecessarily inefficient if
5193 dh->length (recommended exponent length) is much smaller than the
5194 length of dh->p. We could use BN_rand_range() if the order of
5195 the subgroup was stored in the DH structure, but we only have
5200 BN_rand(priv_key, l, ...)
5202 where 'l' is dh->length if this is defined, or BN_num_bits(dh->p)-1
5208 RSA_eay_public_encrypt
5209 RSA_eay_private_decrypt
5210 RSA_eay_private_encrypt (signing)
5211 RSA_eay_public_decrypt (signature verification)
5213 (default implementations for RSA_public_encrypt,
5214 RSA_private_decrypt, RSA_private_encrypt, RSA_public_decrypt),
5215 always reject numbers >= n.
5218 *) In crypto/rand/md_rand.c, use a new short-time lock CRYPTO_LOCK_RAND2
5219 to synchronize access to 'locking_thread'. This is necessary on
5220 systems where access to 'locking_thread' (an 'unsigned long'
5221 variable) is not atomic.
5224 *) In crypto/rand/md_rand.c, set 'locking_thread' to current thread's ID
5225 *before* setting the 'crypto_lock_rand' flag. The previous code had
5226 a race condition if 0 is a valid thread ID.
5227 [Travis Vitek <vitek@roguewave.com>]
5229 *) Add support for shared libraries under Irix.
5230 [Albert Chin-A-Young <china@thewrittenword.com>]
5232 *) Add configuration option to build on Linux on both big-endian and
5234 [Ralf Baechle <ralf@uni-koblenz.de>]
5236 *) Add the possibility to create shared libraries on HP-UX.
5239 Changes between 0.9.6a and 0.9.6b [9 Jul 2001]
5241 *) Change ssleay_rand_bytes (crypto/rand/md_rand.c)
5242 to avoid a SSLeay/OpenSSL PRNG weakness pointed out by
5243 Markku-Juhani O. Saarinen <markku-juhani.saarinen@nokia.com>:
5244 PRNG state recovery was possible based on the output of
5245 one PRNG request appropriately sized to gain knowledge on
5246 'md' followed by enough consecutive 1-byte PRNG requests
5247 to traverse all of 'state'.
5249 1. When updating 'md_local' (the current thread's copy of 'md')
5250 during PRNG output generation, hash all of the previous
5251 'md_local' value, not just the half used for PRNG output.
5253 2. Make the number of bytes from 'state' included into the hash
5254 independent from the number of PRNG bytes requested.
5256 The first measure alone would be sufficient to avoid
5257 Markku-Juhani's attack. (Actually it had never occurred
5258 to me that the half of 'md_local' used for chaining was the
5259 half from which PRNG output bytes were taken -- I had always
5260 assumed that the secret half would be used.) The second
5261 measure makes sure that additional data from 'state' is never
5262 mixed into 'md_local' in small portions; this heuristically
5263 further strengthens the PRNG.
5266 *) Fix crypto/bn/asm/mips3.s.
5269 *) When only the key is given to "enc", the IV is undefined. Print out
5270 an error message in this case.
5273 *) Handle special case when X509_NAME is empty in X509 printing routines.
5276 *) In dsa_do_verify (crypto/dsa/dsa_ossl.c), verify that r and s are
5277 positive and less than q.
5280 *) Don't change *pointer in CRYPTO_add_lock() is add_lock_callback is
5281 used: it isn't thread safe and the add_lock_callback should handle
5283 [Paul Rose <Paul.Rose@bridge.com>]
5285 *) Verify that incoming data obeys the block size in
5286 ssl3_enc (ssl/s3_enc.c) and tls1_enc (ssl/t1_enc.c).
5290 [Ulf Möller, Bodo Möller]
5292 *) The countermeasure against Bleichbacher's attack on PKCS #1 v1.5
5293 RSA encryption was accidentally removed in s3_srvr.c in OpenSSL 0.9.5
5294 when fixing the server behaviour for backwards-compatible 'client
5295 hello' messages. (Note that the attack is impractical against
5296 SSL 3.0 and TLS 1.0 anyway because length and version checking
5297 means that the probability of guessing a valid ciphertext is
5298 around 2^-40; see section 5 in Bleichenbacher's CRYPTO '98
5301 Before 0.9.5, the countermeasure (hide the error by generating a
5302 random 'decryption result') did not work properly because
5303 ERR_clear_error() was missing, meaning that SSL_get_error() would
5304 detect the supposedly ignored error.
5306 Both problems are now fixed.
5309 *) In crypto/bio/bf_buff.c, increase DEFAULT_BUFFER_SIZE to 4096
5310 (previously it was 1024).
5313 *) Fix for compatibility mode trust settings: ignore trust settings
5314 unless some valid trust or reject settings are present.
5317 *) Fix for blowfish EVP: its a variable length cipher.
5320 *) Fix various bugs related to DSA S/MIME verification. Handle missing
5321 parameters in DSA public key structures and return an error in the
5322 DSA routines if parameters are absent.
5325 *) In versions up to 0.9.6, RAND_file_name() resorted to file ".rnd"
5326 in the current directory if neither $RANDFILE nor $HOME was set.
5327 RAND_file_name() in 0.9.6a returned NULL in this case. This has
5328 caused some confusion to Windows users who haven't defined $HOME.
5329 Thus RAND_file_name() is changed again: e_os.h can define a
5330 DEFAULT_HOME, which will be used if $HOME is not set.
5331 For Windows, we use "C:"; on other platforms, we still require
5332 environment variables.
5334 *) Move 'if (!initialized) RAND_poll()' into regions protected by
5335 CRYPTO_LOCK_RAND. This is not strictly necessary, but avoids
5336 having multiple threads call RAND_poll() concurrently.
5339 *) In crypto/rand/md_rand.c, replace 'add_do_not_lock' flag by a
5340 combination of a flag and a thread ID variable.
5341 Otherwise while one thread is in ssleay_rand_bytes (which sets the
5342 flag), *other* threads can enter ssleay_add_bytes without obeying
5343 the CRYPTO_LOCK_RAND lock (and may even illegally release the lock
5344 that they do not hold after the first thread unsets add_do_not_lock).
5347 *) Change bctest again: '-x' expressions are not available in all
5351 Changes between 0.9.6 and 0.9.6a [5 Apr 2001]
5353 *) Fix a couple of memory leaks in PKCS7_dataDecode()
5354 [Steve Henson, reported by Heyun Zheng <hzheng@atdsprint.com>]
5356 *) Change Configure and Makefiles to provide EXE_EXT, which will contain
5357 the default extension for executables, if any. Also, make the perl
5358 scripts that use symlink() to test if it really exists and use "cp"
5359 if it doesn't. All this made OpenSSL compilable and installable in
5363 *) Fix for asn1_GetSequence() for indefinite length constructed data.
5364 If SEQUENCE is length is indefinite just set c->slen to the total
5365 amount of data available.
5366 [Steve Henson, reported by shige@FreeBSD.org]
5367 [This change does not apply to 0.9.7.]
5369 *) Change bctest to avoid here-documents inside command substitution
5370 (workaround for FreeBSD /bin/sh bug).
5371 For compatibility with Ultrix, avoid shell functions (introduced
5372 in the bctest version that searches along $PATH).
5375 *) Rename 'des_encrypt' to 'des_encrypt1'. This avoids the clashes
5376 with des_encrypt() defined on some operating systems, like Solaris
5380 *) Check the result of RSA-CRT (see D. Boneh, R. DeMillo, R. Lipton:
5381 On the Importance of Eliminating Errors in Cryptographic
5382 Computations, J. Cryptology 14 (2001) 2, 101-119,
5383 http://theory.stanford.edu/~dabo/papers/faults.ps.gz).
5386 *) MIPS assembler BIGNUM division bug fix.
5389 *) Disabled incorrect Alpha assembler code.
5392 *) Fix PKCS#7 decode routines so they correctly update the length
5393 after reading an EOC for the EXPLICIT tag.
5395 [This change does not apply to 0.9.7.]
5397 *) Fix bug in PKCS#12 key generation routines. This was triggered
5398 if a 3DES key was generated with a 0 initial byte. Include
5399 PKCS12_BROKEN_KEYGEN compilation option to retain the old
5400 (but broken) behaviour.
5403 *) Enhance bctest to search for a working bc along $PATH and print
5405 [Tim Rice <tim@multitalents.net> via Richard Levitte]
5407 *) Fix memory leaks in err.c: free err_data string if necessary;
5408 don't write to the wrong index in ERR_set_error_data.
5411 *) Implement ssl23_peek (analogous to ssl23_read), which previously
5415 *) Replace rdtsc with _emit statements for VC++ version 5.
5416 [Jeremy Cooper <jeremy@baymoo.org>]
5418 *) Make it possible to reuse SSLv2 sessions.
5421 *) In copy_email() check for >= 0 as a return value for
5422 X509_NAME_get_index_by_NID() since 0 is a valid index.
5423 [Steve Henson reported by Massimiliano Pala <madwolf@opensca.org>]
5425 *) Avoid coredump with unsupported or invalid public keys by checking if
5426 X509_get_pubkey() fails in PKCS7_verify(). Fix memory leak when
5427 PKCS7_verify() fails with non detached data.
5430 *) Don't use getenv in library functions when run as setuid/setgid.
5431 New function OPENSSL_issetugid().
5434 *) Avoid false positives in memory leak detection code (crypto/mem_dbg.c)
5435 due to incorrect handling of multi-threading:
5437 1. Fix timing glitch in the MemCheck_off() portion of CRYPTO_mem_ctrl().
5439 2. Fix logical glitch in is_MemCheck_on() aka CRYPTO_is_mem_check_on().
5441 3. Count how many times MemCheck_off() has been called so that
5442 nested use can be treated correctly. This also avoids
5443 inband-signalling in the previous code (which relied on the
5444 assumption that thread ID 0 is impossible).
5447 *) Add "-rand" option also to s_client and s_server.
5450 *) Fix CPU detection on Irix 6.x.
5451 [Kurt Hockenbury <khockenb@stevens-tech.edu> and
5452 "Bruce W. Forsberg" <bruce.forsberg@baesystems.com>]
5454 *) Fix X509_NAME bug which produced incorrect encoding if X509_NAME
5457 [This change does not apply to 0.9.7.]
5459 *) Use the cached encoding of an X509_NAME structure rather than
5460 copying it. This is apparently the reason for the libsafe "errors"
5461 but the code is actually correct.
5464 *) Add new function BN_rand_range(), and fix DSA_sign_setup() to prevent
5465 Bleichenbacher's DSA attack.
5466 Extend BN_[pseudo_]rand: As before, top=1 forces the highest two bits
5467 to be set and top=0 forces the highest bit to be set; top=-1 is new
5468 and leaves the highest bit random.
5469 [Ulf Moeller, Bodo Moeller]
5471 *) In the NCONF_...-based implementations for CONF_... queries
5472 (crypto/conf/conf_lib.c), if the input LHASH is NULL, avoid using
5473 a temporary CONF structure with the data component set to NULL
5474 (which gives segmentation faults in lh_retrieve).
5475 Instead, use NULL for the CONF pointer in CONF_get_string and
5476 CONF_get_number (which may use environment variables) and directly
5477 return NULL from CONF_get_section.
5480 *) Fix potential buffer overrun for EBCDIC.
5483 *) Tolerate nonRepudiation as being valid for S/MIME signing and certSign
5484 keyUsage if basicConstraints absent for a CA.
5487 *) Make SMIME_write_PKCS7() write mail header values with a format that
5488 is more generally accepted (no spaces before the semicolon), since
5489 some programs can't parse those values properly otherwise. Also make
5490 sure BIO's that break lines after each write do not create invalid
5494 *) Make the CRL encoding routines work with empty SEQUENCE OF. The
5495 macros previously used would not encode an empty SEQUENCE OF
5496 and break the signature.
5498 [This change does not apply to 0.9.7.]
5500 *) Zero the premaster secret after deriving the master secret in
5504 *) Add some EVP_add_digest_alias registrations (as found in
5505 OpenSSL_add_all_digests()) to SSL_library_init()
5506 aka OpenSSL_add_ssl_algorithms(). This provides improved
5507 compatibility with peers using X.509 certificates
5508 with unconventional AlgorithmIdentifier OIDs.
5511 *) Fix for Irix with NO_ASM.
5512 ["Bruce W. Forsberg" <bruce.forsberg@baesystems.com>]
5514 *) ./config script fixes.
5515 [Ulf Moeller, Richard Levitte]
5517 *) Fix 'openssl passwd -1'.
5520 *) Change PKCS12_key_gen_asc() so it can cope with non null
5521 terminated strings whose length is passed in the passlen
5522 parameter, for example from PEM callbacks. This was done
5523 by adding an extra length parameter to asc2uni().
5524 [Steve Henson, reported by <oddissey@samsung.co.kr>]
5526 *) Fix C code generated by 'openssl dsaparam -C': If a BN_bin2bn
5527 call failed, free the DSA structure.
5530 *) Fix to uni2asc() to cope with zero length Unicode strings.
5531 These are present in some PKCS#12 files.
5534 *) Increase s2->wbuf allocation by one byte in ssl2_new (ssl/s2_lib.c).
5535 Otherwise do_ssl_write (ssl/s2_pkt.c) will write beyond buffer limits
5536 when writing a 32767 byte record.
5537 [Bodo Moeller; problem reported by Eric Day <eday@concentric.net>]
5539 *) In RSA_eay_public_{en,ed}crypt and RSA_eay_mod_exp (rsa_eay.c),
5540 obtain lock CRYPTO_LOCK_RSA before setting rsa->_method_mod_{n,p,q}.
5542 (RSA objects have a reference count access to which is protected
5543 by CRYPTO_LOCK_RSA [see rsa_lib.c, s3_srvr.c, ssl_cert.c, ssl_rsa.c],
5544 so they are meant to be shared between threads.)
5545 [Bodo Moeller, Geoff Thorpe; original patch submitted by
5546 "Reddie, Steven" <Steven.Reddie@ca.com>]
5548 *) Fix a deadlock in CRYPTO_mem_leaks().
5551 *) Use better test patterns in bntest.
5554 *) rand_win.c fix for Borland C.
5557 *) BN_rshift bugfix for n == 0.
5560 *) Add a 'bctest' script that checks for some known 'bc' bugs
5561 so that 'make test' does not abort just because 'bc' is broken.
5564 *) Store verify_result within SSL_SESSION also for client side to
5565 avoid potential security hole. (Re-used sessions on the client side
5566 always resulted in verify_result==X509_V_OK, not using the original
5567 result of the server certificate verification.)
5570 *) Fix ssl3_pending: If the record in s->s3->rrec is not of type
5571 SSL3_RT_APPLICATION_DATA, return 0.
5572 Similarly, change ssl2_pending to return 0 if SSL_in_init(s) is true.
5576 Both ssl2_peek and ssl3_peek, which were totally broken in earlier
5577 releases, have been re-implemented by renaming the previous
5578 implementations of ssl2_read and ssl3_read to ssl2_read_internal
5579 and ssl3_read_internal, respectively, and adding 'peek' parameters
5580 to them. The new ssl[23]_{read,peek} functions are calls to
5581 ssl[23]_read_internal with the 'peek' flag set appropriately.
5582 A 'peek' parameter has also been added to ssl3_read_bytes, which
5583 does the actual work for ssl3_read_internal.
5586 *) Initialise "ex_data" member of RSA/DSA/DH structures prior to calling
5587 the method-specific "init()" handler. Also clean up ex_data after
5588 calling the method-specific "finish()" handler. Previously, this was
5589 happening the other way round.
5592 *) Increase BN_CTX_NUM (the number of BIGNUMs in a BN_CTX) to 16.
5593 The previous value, 12, was not always sufficient for BN_mod_exp().
5596 *) Make sure that shared libraries get the internal name engine with
5597 the full version number and not just 0. This should mark the
5598 shared libraries as not backward compatible. Of course, this should
5599 be changed again when we can guarantee backward binary compatibility.
5602 *) Fix typo in get_cert_by_subject() in by_dir.c
5603 [Jean-Marc Desperrier <jean-marc.desperrier@certplus.com>]
5605 *) Rework the system to generate shared libraries:
5607 - Make note of the expected extension for the shared libraries and
5608 if there is a need for symbolic links from for example libcrypto.so.0
5609 to libcrypto.so.0.9.7. There is extended info in Configure for
5612 - Make as few rebuilds of the shared libraries as possible.
5614 - Still avoid linking the OpenSSL programs with the shared libraries.
5616 - When installing, install the shared libraries separately from the
5620 *) Fix SSL_CTX_set_read_ahead macro to actually use its argument.
5622 Copy SSL_CTX's read_ahead flag to SSL object directly in SSL_new
5623 and not in SSL_clear because the latter is also used by the
5624 accept/connect functions; previously, the settings made by
5625 SSL_set_read_ahead would be lost during the handshake.
5626 [Bodo Moeller; problems reported by Anders Gertz <gertz@epact.se>]
5628 *) Correct util/mkdef.pl to be selective about disabled algorithms.
5629 Previously, it would create entries for disableed algorithms no
5633 *) Added several new manual pages for SSL_* function.
5636 Changes between 0.9.5a and 0.9.6 [24 Sep 2000]
5638 *) In ssl23_get_client_hello, generate an error message when faced
5639 with an initial SSL 3.0/TLS record that is too small to contain the
5640 first two bytes of the ClientHello message, i.e. client_version.
5641 (Note that this is a pathologic case that probably has never happened
5642 in real life.) The previous approach was to use the version number
5643 from the record header as a substitute; but our protocol choice
5644 should not depend on that one because it is not authenticated
5645 by the Finished messages.
5648 *) More robust randomness gathering functions for Windows.
5649 [Jeffrey Altman <jaltman@columbia.edu>]
5651 *) For compatibility reasons if the flag X509_V_FLAG_ISSUER_CHECK is
5652 not set then we don't setup the error code for issuer check errors
5653 to avoid possibly overwriting other errors which the callback does
5654 handle. If an application does set the flag then we assume it knows
5655 what it is doing and can handle the new informational codes
5659 *) Fix for a nasty bug in ASN1_TYPE handling. ASN1_TYPE is used for
5660 a general "ANY" type, as such it should be able to decode anything
5661 including tagged types. However it didn't check the class so it would
5662 wrongly interpret tagged types in the same way as their universal
5663 counterpart and unknown types were just rejected. Changed so that the
5664 tagged and unknown types are handled in the same way as a SEQUENCE:
5665 that is the encoding is stored intact. There is also a new type
5666 "V_ASN1_OTHER" which is used when the class is not universal, in this
5667 case we have no idea what the actual type is so we just lump them all
5671 *) On VMS, stdout may very well lead to a file that is written to
5672 in a record-oriented fashion. That means that every write() will
5673 write a separate record, which will be read separately by the
5674 programs trying to read from it. This can be very confusing.
5676 The solution is to put a BIO filter in the way that will buffer
5677 text until a linefeed is reached, and then write everything a
5678 line at a time, so every record written will be an actual line,
5679 not chunks of lines and not (usually doesn't happen, but I've
5680 seen it once) several lines in one record. BIO_f_linebuffer() is
5683 Currently, it's a VMS-only method, because that's where it has
5684 been tested well enough.
5687 *) Remove 'optimized' squaring variant in BN_mod_mul_montgomery,
5688 it can return incorrect results.
5689 (Note: The buggy variant was not enabled in OpenSSL 0.9.5a,
5690 but it was in 0.9.6-beta[12].)
5693 *) Disable the check for content being present when verifying detached
5694 signatures in pk7_smime.c. Some versions of Netscape (wrongly)
5695 include zero length content when signing messages.
5698 *) New BIO_shutdown_wr macro, which invokes the BIO_C_SHUTDOWN_WR
5699 BIO_ctrl (for BIO pairs).
5702 *) Add DSO method for VMS.
5705 *) Bug fix: Montgomery multiplication could produce results with the
5709 *) Add RPM specification openssl.spec and modify it to build three
5710 packages. The default package contains applications, application
5711 documentation and run-time libraries. The devel package contains
5712 include files, static libraries and function documentation. The
5713 doc package contains the contents of the doc directory. The original
5714 openssl.spec was provided by Damien Miller <djm@mindrot.org>.
5717 *) Add a large number of documentation files for many SSL routines.
5718 [Lutz Jaenicke <Lutz.Jaenicke@aet.TU-Cottbus.DE>]
5720 *) Add a configuration entry for Sony News 4.
5721 [NAKAJI Hiroyuki <nakaji@tutrp.tut.ac.jp>]
5723 *) Don't set the two most significant bits to one when generating a
5724 random number < q in the DSA library.
5727 *) New SSL API mode 'SSL_MODE_AUTO_RETRY'. This disables the default
5728 behaviour that SSL_read may result in SSL_ERROR_WANT_READ (even if
5729 the underlying transport is blocking) if a handshake took place.
5730 (The default behaviour is needed by applications such as s_client
5731 and s_server that use select() to determine when to use SSL_read;
5732 but for applications that know in advance when to expect data, it
5733 just makes things more complicated.)
5736 *) Add RAND_egd_bytes(), which gives control over the number of bytes read
5740 *) Add a few more EBCDIC conditionals that make `req' and `x509'
5741 work better on such systems.
5742 [Martin Kraemer <Martin.Kraemer@MchP.Siemens.De>]
5744 *) Add two demo programs for PKCS12_parse() and PKCS12_create().
5745 Update PKCS12_parse() so it copies the friendlyName and the
5746 keyid to the certificates aux info.
5749 *) Fix bug in PKCS7_verify() which caused an infinite loop
5750 if there was more than one signature.
5751 [Sven Uszpelkat <su@celocom.de>]
5753 *) Major change in util/mkdef.pl to include extra information
5754 about each symbol, as well as presentig variables as well
5755 as functions. This change means that there's n more need
5756 to rebuild the .num files when some algorithms are excluded.
5759 *) Allow the verify time to be set by an application,
5760 rather than always using the current time.
5763 *) Phase 2 verify code reorganisation. The certificate
5764 verify code now looks up an issuer certificate by a
5765 number of criteria: subject name, authority key id
5766 and key usage. It also verifies self signed certificates
5767 by the same criteria. The main comparison function is
5768 X509_check_issued() which performs these checks.
5770 Lot of changes were necessary in order to support this
5771 without completely rewriting the lookup code.
5773 Authority and subject key identifier are now cached.
5775 The LHASH 'certs' is X509_STORE has now been replaced
5776 by a STACK_OF(X509_OBJECT). This is mainly because an
5777 LHASH can't store or retrieve multiple objects with
5778 the same hash value.
5780 As a result various functions (which were all internal
5781 use only) have changed to handle the new X509_STORE
5782 structure. This will break anything that messed round
5783 with X509_STORE internally.
5785 The functions X509_STORE_add_cert() now checks for an
5786 exact match, rather than just subject name.
5788 The X509_STORE API doesn't directly support the retrieval
5789 of multiple certificates matching a given criteria, however
5790 this can be worked round by performing a lookup first
5791 (which will fill the cache with candidate certificates)
5792 and then examining the cache for matches. This is probably
5793 the best we can do without throwing out X509_LOOKUP
5794 entirely (maybe later...).
5796 The X509_VERIFY_CTX structure has been enhanced considerably.
5798 All certificate lookup operations now go via a get_issuer()
5799 callback. Although this currently uses an X509_STORE it
5800 can be replaced by custom lookups. This is a simple way
5801 to bypass the X509_STORE hackery necessary to make this
5802 work and makes it possible to use more efficient techniques
5803 in future. A very simple version which uses a simple
5804 STACK for its trusted certificate store is also provided
5805 using X509_STORE_CTX_trusted_stack().
5807 The verify_cb() and verify() callbacks now have equivalents
5808 in the X509_STORE_CTX structure.
5810 X509_STORE_CTX also has a 'flags' field which can be used
5811 to customise the verify behaviour.
5814 *) Add new PKCS#7 signing option PKCS7_NOSMIMECAP which
5815 excludes S/MIME capabilities.
5818 *) When a certificate request is read in keep a copy of the
5819 original encoding of the signed data and use it when outputing
5820 again. Signatures then use the original encoding rather than
5821 a decoded, encoded version which may cause problems if the
5822 request is improperly encoded.
5825 *) For consistency with other BIO_puts implementations, call
5826 buffer_write(b, ...) directly in buffer_puts instead of calling
5829 In BIO_puts, increment b->num_write as in BIO_write.
5830 [Peter.Sylvester@EdelWeb.fr]
5832 *) Fix BN_mul_word for the case where the word is 0. (We have to use
5833 BN_zero, we may not return a BIGNUM with an array consisting of
5837 *) Avoid calling abort() from within the library when problems are
5838 detected, except if preprocessor symbols have been defined
5839 (such as REF_CHECK, BN_DEBUG etc.).
5842 *) New openssl application 'rsautl'. This utility can be
5843 used for low level RSA operations. DER public key
5844 BIO/fp routines also added.
5847 *) New Configure entry and patches for compiling on QNX 4.
5848 [Andreas Schneider <andreas@ds3.etech.fh-hamburg.de>]
5850 *) A demo state-machine implementation was sponsored by
5851 Nuron (http://www.nuron.com/) and is now available in
5852 demos/state_machine.
5855 *) New options added to the 'dgst' utility for signature
5856 generation and verification.
5859 *) Unrecognized PKCS#7 content types are now handled via a
5860 catch all ASN1_TYPE structure. This allows unsupported
5861 types to be stored as a "blob" and an application can
5862 encode and decode it manually.
5865 *) Fix various signed/unsigned issues to make a_strex.c
5867 [Oscar Jacobsson <oscar.jacobsson@celocom.com>]
5869 *) ASN1 fixes. i2d_ASN1_OBJECT was not returning the correct
5870 length if passed a buffer. ASN1_INTEGER_to_BN failed
5871 if passed a NULL BN and its argument was negative.
5872 [Steve Henson, pointed out by Sven Heiberg <sven@tartu.cyber.ee>]
5874 *) Modification to PKCS#7 encoding routines to output definite
5875 length encoding. Since currently the whole structures are in
5876 memory there's not real point in using indefinite length
5877 constructed encoding. However if OpenSSL is compiled with
5878 the flag PKCS7_INDEFINITE_ENCODING the old form is used.
5881 *) Added BIO_vprintf() and BIO_vsnprintf().
5884 *) Added more prefixes to parse for in the the strings written
5885 through a logging bio, to cover all the levels that are available
5886 through syslog. The prefixes are now:
5888 PANIC, EMERG, EMR => LOG_EMERG
5889 ALERT, ALR => LOG_ALERT
5890 CRIT, CRI => LOG_CRIT
5891 ERROR, ERR => LOG_ERR
5892 WARNING, WARN, WAR => LOG_WARNING
5893 NOTICE, NOTE, NOT => LOG_NOTICE
5894 INFO, INF => LOG_INFO
5895 DEBUG, DBG => LOG_DEBUG
5897 and as before, if none of those prefixes are present at the
5898 beginning of the string, LOG_ERR is chosen.
5900 On Win32, the LOG_* levels are mapped according to this:
5902 LOG_EMERG, LOG_ALERT, LOG_CRIT, LOG_ERR => EVENTLOG_ERROR_TYPE
5903 LOG_WARNING => EVENTLOG_WARNING_TYPE
5904 LOG_NOTICE, LOG_INFO, LOG_DEBUG => EVENTLOG_INFORMATION_TYPE
5908 *) Made it possible to reconfigure with just the configuration
5909 argument "reconf" or "reconfigure". The command line arguments
5910 are stored in Makefile.ssl in the variable CONFIGURE_ARGS,
5911 and are retrieved from there when reconfiguring.
5915 [Assar Westerlund <assar@sics.se>, Richard Levitte]
5917 *) Add the arguments -CAfile and -CApath to the pkcs12 utility.
5920 *) The obj_dat.pl script was messing up the sorting of object
5921 names. The reason was that it compared the quoted version
5922 of strings as a result "OCSP" > "OCSP Signing" because
5923 " > SPACE. Changed script to store unquoted versions of
5924 names and add quotes on output. It was also omitting some
5925 names from the lookup table if they were given a default
5926 value (that is if SN is missing it is given the same
5927 value as LN and vice versa), these are now added on the
5928 grounds that if an object has a name we should be able to
5929 look it up. Finally added warning output when duplicate
5930 short or long names are found.
5933 *) Changes needed for Tandem NSK.
5934 [Scott Uroff <scott@xypro.com>]
5936 *) Fix SSL 2.0 rollback checking: Due to an off-by-one error in
5937 RSA_padding_check_SSLv23(), special padding was never detected
5938 and thus the SSL 3.0/TLS 1.0 countermeasure against protocol
5939 version rollback attacks was not effective.
5941 In s23_clnt.c, don't use special rollback-attack detection padding
5942 (RSA_SSLV23_PADDING) if SSL 2.0 is the only protocol enabled in the
5943 client; similarly, in s23_srvr.c, don't do the rollback check if
5944 SSL 2.0 is the only protocol enabled in the server.
5947 *) Make it possible to get hexdumps of unprintable data with 'openssl
5948 asn1parse'. By implication, the functions ASN1_parse_dump() and
5949 BIO_dump_indent() are added.
5952 *) New functions ASN1_STRING_print_ex() and X509_NAME_print_ex()
5953 these print out strings and name structures based on various
5954 flags including RFC2253 support and proper handling of
5955 multibyte characters. Added options to the 'x509' utility
5956 to allow the various flags to be set.
5959 *) Various fixes to use ASN1_TIME instead of ASN1_UTCTIME.
5960 Also change the functions X509_cmp_current_time() and
5961 X509_gmtime_adj() work with an ASN1_TIME structure,
5962 this will enable certificates using GeneralizedTime in validity
5963 dates to be checked.
5966 *) Make the NEG_PUBKEY_BUG code (which tolerates invalid
5967 negative public key encodings) on by default,
5968 NO_NEG_PUBKEY_BUG can be set to disable it.
5971 *) New function c2i_ASN1_OBJECT() which acts on ASN1_OBJECT
5972 content octets. An i2c_ASN1_OBJECT is unnecessary because
5973 the encoding can be trivially obtained from the structure.
5976 *) crypto/err.c locking bugfix: Use write locks (CRYPTO_w_[un]lock),
5977 not read locks (CRYPTO_r_[un]lock).
5980 *) A first attempt at creating official support for shared
5981 libraries through configuration. I've kept it so the
5982 default is static libraries only, and the OpenSSL programs
5983 are always statically linked for now, but there are
5984 preparations for dynamic linking in place.
5985 This has been tested on Linux and Tru64.
5988 *) Randomness polling function for Win9x, as described in:
5989 Peter Gutmann, Software Generation of Practically Strong
5993 *) Fix so PRNG is seeded in req if using an already existing
5997 *) New options to smime application. -inform and -outform
5998 allow alternative formats for the S/MIME message including
5999 PEM and DER. The -content option allows the content to be
6000 specified separately. This should allow things like Netscape
6001 form signing output easier to verify.
6004 *) Fix the ASN1 encoding of tags using the 'long form'.
6007 *) New ASN1 functions, i2c_* and c2i_* for INTEGER and BIT
6008 STRING types. These convert content octets to and from the
6009 underlying type. The actual tag and length octets are
6010 already assumed to have been read in and checked. These
6011 are needed because all other string types have virtually
6012 identical handling apart from the tag. By having versions
6013 of the ASN1 functions that just operate on content octets
6014 IMPLICIT tagging can be handled properly. It also allows
6015 the ASN1_ENUMERATED code to be cut down because ASN1_ENUMERATED
6016 and ASN1_INTEGER are identical apart from the tag.
6019 *) Change the handling of OID objects as follows:
6021 - New object identifiers are inserted in objects.txt, following
6022 the syntax given in objects.README.
6023 - objects.pl is used to process obj_mac.num and create a new
6025 - obj_dat.pl is used to create a new obj_dat.h, using the data in
6028 This is currently kind of a hack, and the perl code in objects.pl
6029 isn't very elegant, but it works as I intended. The simplest way
6030 to check that it worked correctly is to look in obj_dat.h and
6031 check the array nid_objs and make sure the objects haven't moved
6032 around (this is important!). Additions are OK, as well as
6033 consistent name changes.
6036 *) Add BSD-style MD5-based passwords to 'openssl passwd' (option '-1').
6039 *) Addition of the command line parameter '-rand file' to 'openssl req'.
6040 The given file adds to whatever has already been seeded into the
6041 random pool through the RANDFILE configuration file option or
6042 environment variable, or the default random state file.
6045 *) mkstack.pl now sorts each macro group into lexical order.
6046 Previously the output order depended on the order the files
6047 appeared in the directory, resulting in needless rewriting
6051 *) Patches to make OpenSSL compile under Win32 again. Mostly
6052 work arounds for the VC++ problem that it treats func() as
6053 func(void). Also stripped out the parts of mkdef.pl that
6054 added extra typesafe functions: these no longer exist.
6057 *) Reorganisation of the stack code. The macros are now all
6058 collected in safestack.h . Each macro is defined in terms of
6059 a "stack macro" of the form SKM_<name>(type, a, b). The
6060 DEBUG_SAFESTACK is now handled in terms of function casts,
6061 this has the advantage of retaining type safety without the
6062 use of additional functions. If DEBUG_SAFESTACK is not defined
6063 then the non typesafe macros are used instead. Also modified the
6064 mkstack.pl script to handle the new form. Needs testing to see
6065 if which (if any) compilers it chokes and maybe make DEBUG_SAFESTACK
6066 the default if no major problems. Similar behaviour for ASN1_SET_OF
6067 and PKCS12_STACK_OF.
6070 *) When some versions of IIS use the 'NET' form of private key the
6071 key derivation algorithm is different. Normally MD5(password) is
6072 used as a 128 bit RC4 key. In the modified case
6073 MD5(MD5(password) + "SGCKEYSALT") is used insted. Added some
6074 new functions i2d_RSA_NET(), d2i_RSA_NET() etc which are the same
6075 as the old Netscape_RSA functions except they have an additional
6076 'sgckey' parameter which uses the modified algorithm. Also added
6077 an -sgckey command line option to the rsa utility. Thanks to
6078 Adrian Peck <bertie@ncipher.com> for posting details of the modified
6079 algorithm to openssl-dev.
6082 *) The evp_local.h macros were using 'c.##kname' which resulted in
6083 invalid expansion on some systems (SCO 5.0.5 for example).
6084 Corrected to 'c.kname'.
6085 [Phillip Porch <root@theporch.com>]
6087 *) New X509_get1_email() and X509_REQ_get1_email() functions that return
6088 a STACK of email addresses from a certificate or request, these look
6089 in the subject name and the subject alternative name extensions and
6090 omit any duplicate addresses.
6093 *) Re-implement BN_mod_exp2_mont using independent (and larger) windows.
6094 This makes DSA verification about 2 % faster.
6097 *) Increase maximum window size in BN_mod_exp_... to 6 bits instead of 5
6098 (meaning that now 2^5 values will be precomputed, which is only 4 KB
6099 plus overhead for 1024 bit moduli).
6100 This makes exponentiations about 0.5 % faster for 1024 bit
6101 exponents (as measured by "openssl speed rsa2048").
6104 *) Rename memory handling macros to avoid conflicts with other
6106 Malloc => OPENSSL_malloc
6107 Malloc_locked => OPENSSL_malloc_locked
6108 Realloc => OPENSSL_realloc
6109 Free => OPENSSL_free
6112 *) New function BN_mod_exp_mont_word for small bases (roughly 15%
6113 faster than BN_mod_exp_mont, i.e. 7% for a full DH exchange).
6116 *) CygWin32 support.
6117 [John Jarvie <jjarvie@newsguy.com>]
6119 *) The type-safe stack code has been rejigged. It is now only compiled
6120 in when OpenSSL is configured with the DEBUG_SAFESTACK option and
6121 by default all type-specific stack functions are "#define"d back to
6122 standard stack functions. This results in more streamlined output
6123 but retains the type-safety checking possibilities of the original
6127 *) The STACK code has been cleaned up, and certain type declarations
6128 that didn't make a lot of sense have been brought in line. This has
6129 also involved a cleanup of sorts in safestack.h to more correctly
6130 map type-safe stack functions onto their plain stack counterparts.
6131 This work has also resulted in a variety of "const"ifications of
6132 lots of the code, especially "_cmp" operations which should normally
6133 be prototyped with "const" parameters anyway.
6136 *) When generating bytes for the first time in md_rand.c, 'stir the pool'
6137 by seeding with STATE_SIZE dummy bytes (with zero entropy count).
6138 (The PRNG state consists of two parts, the large pool 'state' and 'md',
6139 where all of 'md' is used each time the PRNG is used, but 'state'
6140 is used only indexed by a cyclic counter. As entropy may not be
6141 well distributed from the beginning, 'md' is important as a
6142 chaining variable. However, the output function chains only half
6143 of 'md', i.e. 80 bits. ssleay_rand_add, on the other hand, chains
6144 all of 'md', and seeding with STATE_SIZE dummy bytes will result
6145 in all of 'state' being rewritten, with the new values depending
6146 on virtually all of 'md'. This overcomes the 80 bit limitation.)
6149 *) In ssl/s2_clnt.c and ssl/s3_clnt.c, call ERR_clear_error() when
6150 the handshake is continued after ssl_verify_cert_chain();
6151 otherwise, if SSL_VERIFY_NONE is set, remaining error codes
6152 can lead to 'unexplainable' connection aborts later.
6153 [Bodo Moeller; problem tracked down by Lutz Jaenicke]
6155 *) Major EVP API cipher revision.
6156 Add hooks for extra EVP features. This allows various cipher
6157 parameters to be set in the EVP interface. Support added for variable
6158 key length ciphers via the EVP_CIPHER_CTX_set_key_length() function and
6159 setting of RC2 and RC5 parameters.
6161 Modify EVP_OpenInit() and EVP_SealInit() to cope with variable key length
6164 Remove lots of duplicated code from the EVP library. For example *every*
6165 cipher init() function handles the 'iv' in the same way according to the
6166 cipher mode. They also all do nothing if the 'key' parameter is NULL and
6167 for CFB and OFB modes they zero ctx->num.
6169 New functionality allows removal of S/MIME code RC2 hack.
6171 Most of the routines have the same form and so can be declared in terms
6174 By shifting this to the top level EVP_CipherInit() it can be removed from
6175 all individual ciphers. If the cipher wants to handle IVs or keys
6176 differently it can set the EVP_CIPH_CUSTOM_IV or EVP_CIPH_ALWAYS_CALL_INIT
6179 Change lots of functions like EVP_EncryptUpdate() to now return a
6180 value: although software versions of the algorithms cannot fail
6181 any installed hardware versions can.
6184 *) Implement SSL_OP_TLS_ROLLBACK_BUG: In ssl3_get_client_key_exchange, if
6185 this option is set, tolerate broken clients that send the negotiated
6186 protocol version number instead of the requested protocol version
6190 *) Call dh_tmp_cb (set by ..._TMP_DH_CB) with correct 'is_export' flag;
6191 i.e. non-zero for export ciphersuites, zero otherwise.
6192 Previous versions had this flag inverted, inconsistent with
6193 rsa_tmp_cb (..._TMP_RSA_CB).
6194 [Bodo Moeller; problem reported by Amit Chopra]
6196 *) Add missing DSA library text string. Work around for some IIS
6197 key files with invalid SEQUENCE encoding.
6200 *) Add a document (doc/standards.txt) that list all kinds of standards
6201 and so on that are implemented in OpenSSL.
6204 *) Enhance c_rehash script. Old version would mishandle certificates
6205 with the same subject name hash and wouldn't handle CRLs at all.
6206 Added -fingerprint option to crl utility, to support new c_rehash
6210 *) Eliminate non-ANSI declarations in crypto.h and stack.h.
6213 *) Fix for SSL server purpose checking. Server checking was
6214 rejecting certificates which had extended key usage present
6215 but no ssl client purpose.
6216 [Steve Henson, reported by Rene Grosser <grosser@hisolutions.com>]
6218 *) Make PKCS#12 code work with no password. The PKCS#12 spec
6219 is a little unclear about how a blank password is handled.
6220 Since the password in encoded as a BMPString with terminating
6221 double NULL a zero length password would end up as just the
6222 double NULL. However no password at all is different and is
6223 handled differently in the PKCS#12 key generation code. NS
6224 treats a blank password as zero length. MSIE treats it as no
6225 password on export: but it will try both on import. We now do
6226 the same: PKCS12_parse() tries zero length and no password if
6227 the password is set to "" or NULL (NULL is now a valid password:
6228 it wasn't before) as does the pkcs12 application.
6231 *) Bugfixes in apps/x509.c: Avoid a memory leak; and don't use
6232 perror when PEM_read_bio_X509_REQ fails, the error message must
6233 be obtained from the error queue.
6236 *) Avoid 'thread_hash' memory leak in crypto/err/err.c by freeing
6237 it in ERR_remove_state if appropriate, and change ERR_get_state
6238 accordingly to avoid race conditions (this is necessary because
6239 thread_hash is no longer constant once set).
6242 *) Bugfix for linux-elf makefile.one.
6245 *) RSA_get_default_method() will now cause a default
6246 RSA_METHOD to be chosen if one doesn't exist already.
6247 Previously this was only set during a call to RSA_new()
6248 or RSA_new_method(NULL) meaning it was possible for
6249 RSA_get_default_method() to return NULL.
6252 *) Added native name translation to the existing DSO code
6253 that will convert (if the flag to do so is set) filenames
6254 that are sufficiently small and have no path information
6255 into a canonical native form. Eg. "blah" converted to
6256 "libblah.so" or "blah.dll" etc.
6259 *) New function ERR_error_string_n(e, buf, len) which is like
6260 ERR_error_string(e, buf), but writes at most 'len' bytes
6261 including the 0 terminator. For ERR_error_string_n, 'buf'
6263 [Damien Miller <djm@mindrot.org>, Bodo Moeller]
6265 *) CONF library reworked to become more general. A new CONF
6266 configuration file reader "class" is implemented as well as a
6267 new functions (NCONF_*, for "New CONF") to handle it. The now
6268 old CONF_* functions are still there, but are reimplemented to
6269 work in terms of the new functions. Also, a set of functions
6270 to handle the internal storage of the configuration data is
6271 provided to make it easier to write new configuration file
6272 reader "classes" (I can definitely see something reading a
6273 configuration file in XML format, for example), called _CONF_*,
6274 or "the configuration storage API"...
6276 The new configuration file reading functions are:
6278 NCONF_new, NCONF_free, NCONF_load, NCONF_load_fp, NCONF_load_bio,
6279 NCONF_get_section, NCONF_get_string, NCONF_get_numbre
6281 NCONF_default, NCONF_WIN32
6283 NCONF_dump_fp, NCONF_dump_bio
6285 NCONF_default and NCONF_WIN32 are method (or "class") choosers,
6286 NCONF_new creates a new CONF object. This works in the same way
6287 as other interfaces in OpenSSL, like the BIO interface.
6288 NCONF_dump_* dump the internal storage of the configuration file,
6289 which is useful for debugging. All other functions take the same
6290 arguments as the old CONF_* functions wth the exception of the
6291 first that must be a `CONF *' instead of a `LHASH *'.
6293 To make it easer to use the new classes with the old CONF_* functions,
6294 the function CONF_set_default_method is provided.
6297 *) Add '-tls1' option to 'openssl ciphers', which was already
6298 mentioned in the documentation but had not been implemented.
6299 (This option is not yet really useful because even the additional
6300 experimental TLS 1.0 ciphers are currently treated as SSL 3.0 ciphers.)
6303 *) Initial DSO code added into libcrypto for letting OpenSSL (and
6304 OpenSSL-based applications) load shared libraries and bind to
6305 them in a portable way.
6306 [Geoff Thorpe, with contributions from Richard Levitte]
6308 Changes between 0.9.5 and 0.9.5a [1 Apr 2000]
6310 *) Make sure _lrotl and _lrotr are only used with MSVC.
6312 *) Use lock CRYPTO_LOCK_RAND correctly in ssleay_rand_status
6313 (the default implementation of RAND_status).
6315 *) Rename openssl x509 option '-crlext', which was added in 0.9.5,
6316 to '-clrext' (= clear extensions), as intended and documented.
6317 [Bodo Moeller; inconsistency pointed out by Michael Attili
6320 *) Fix for HMAC. It wasn't zeroing the rest of the block if the key length
6321 was larger than the MD block size.
6322 [Steve Henson, pointed out by Yost William <YostW@tce.com>]
6324 *) Modernise PKCS12_parse() so it uses STACK_OF(X509) for its ca argument
6325 fix a leak when the ca argument was passed as NULL. Stop X509_PUBKEY_set()
6326 using the passed key: if the passed key was a private key the result
6327 of X509_print(), for example, would be to print out all the private key
6331 *) des_quad_cksum() byte order bug fix.
6332 [Ulf Möller, using the problem description in krb4-0.9.7, where
6333 the solution is attributed to Derrick J Brashear <shadow@DEMENTIA.ORG>]
6335 *) Fix so V_ASN1_APP_CHOOSE works again: however its use is strongly
6337 [Steve Henson, pointed out by Brian Korver <briank@cs.stanford.edu>]
6339 *) For easily testing in shell scripts whether some command
6340 'openssl XXX' exists, the new pseudo-command 'openssl no-XXX'
6341 returns with exit code 0 iff no command of the given name is available.
6342 'no-XXX' is printed in this case, 'XXX' otherwise. In both cases,
6343 the output goes to stdout and nothing is printed to stderr.
6344 Additional arguments are always ignored.
6346 Since for each cipher there is a command of the same name,
6347 the 'no-cipher' compilation switches can be tested this way.
6349 ('openssl no-XXX' is not able to detect pseudo-commands such
6350 as 'quit', 'list-XXX-commands', or 'no-XXX' itself.)
6353 *) Update test suite so that 'make test' succeeds in 'no-rsa' configuration.
6356 *) For SSL_[CTX_]set_tmp_dh, don't create a DH key if SSL_OP_SINGLE_DH_USE
6357 is set; it will be thrown away anyway because each handshake creates
6359 ssl_cert_dup, which is used by SSL_new, now copies DH keys in addition
6360 to parameters -- in previous versions (since OpenSSL 0.9.3) the
6361 'default key' from SSL_CTX_set_tmp_dh would always be lost, meanining
6362 you effectivly got SSL_OP_SINGLE_DH_USE when using this macro.
6365 *) New s_client option -ign_eof: EOF at stdin is ignored, and
6366 'Q' and 'R' lose their special meanings (quit/renegotiate).
6367 This is part of what -quiet does; unlike -quiet, -ign_eof
6368 does not suppress any output.
6371 *) Add compatibility options to the purpose and trust code. The
6372 purpose X509_PURPOSE_ANY is "any purpose" which automatically
6373 accepts a certificate or CA, this was the previous behaviour,
6374 with all the associated security issues.
6376 X509_TRUST_COMPAT is the old trust behaviour: only and
6377 automatically trust self signed roots in certificate store. A
6378 new trust setting X509_TRUST_DEFAULT is used to specify that
6379 a purpose has no associated trust setting and it should instead
6380 use the value in the default purpose.
6383 *) Fix the PKCS#8 DSA private key code so it decodes keys again
6384 and fix a memory leak.
6387 *) In util/mkerr.pl (which implements 'make errors'), preserve
6388 reason strings from the previous version of the .c file, as
6389 the default to have only downcase letters (and digits) in
6390 automatically generated reasons codes is not always appropriate.
6393 *) In ERR_load_ERR_strings(), build an ERR_LIB_SYS error reason table
6394 using strerror. Previously, ERR_reason_error_string() returned
6395 library names as reason strings for SYSerr; but SYSerr is a special
6396 case where small numbers are errno values, not library numbers.
6399 *) Add '-dsaparam' option to 'openssl dhparam' application. This
6400 converts DSA parameters into DH parameters. (When creating parameters,
6401 DSA_generate_parameters is used.)
6404 *) Include 'length' (recommended exponent length) in C code generated
6405 by 'openssl dhparam -C'.
6408 *) The second argument to set_label in perlasm was already being used
6409 so couldn't be used as a "file scope" flag. Moved to third argument
6413 *) In PEM_ASN1_write_bio and some other functions, use RAND_pseudo_bytes
6414 instead of RAND_bytes for encryption IVs and salts.
6417 *) Include RAND_status() into RAND_METHOD instead of implementing
6418 it only for md_rand.c Otherwise replacing the PRNG by calling
6419 RAND_set_rand_method would be impossible.
6422 *) Don't let DSA_generate_key() enter an infinite loop if the random
6423 number generation fails.
6426 *) New 'rand' application for creating pseudo-random output.
6429 *) Added configuration support for Linux/IA64
6430 [Rolf Haberrecker <rolf@suse.de>]
6432 *) Assembler module support for Mingw32.
6435 *) Shared library support for HPUX (in shlib/).
6436 [Lutz Jaenicke <Lutz.Jaenicke@aet.TU-Cottbus.DE> and Anonymous]
6438 *) Shared library support for Solaris gcc.
6439 [Lutz Behnke <behnke@trustcenter.de>]
6441 Changes between 0.9.4 and 0.9.5 [28 Feb 2000]
6443 *) PKCS7_encrypt() was adding text MIME headers twice because they
6444 were added manually and by SMIME_crlf_copy().
6447 *) In bntest.c don't call BN_rand with zero bits argument.
6448 [Steve Henson, pointed out by Andrew W. Gray <agray@iconsinc.com>]
6450 *) BN_mul bugfix: In bn_mul_part_recursion() only the a>a[n] && b>b[n]
6451 case was implemented. This caused BN_div_recp() to fail occasionally.
6454 *) Add an optional second argument to the set_label() in the perl
6455 assembly language builder. If this argument exists and is set
6456 to 1 it signals that the assembler should use a symbol whose
6457 scope is the entire file, not just the current function. This
6458 is needed with MASM which uses the format label:: for this scope.
6459 [Steve Henson, pointed out by Peter Runestig <peter@runestig.com>]
6461 *) Change the ASN1 types so they are typedefs by default. Before
6462 almost all types were #define'd to ASN1_STRING which was causing
6463 STACK_OF() problems: you couldn't declare STACK_OF(ASN1_UTF8STRING)
6467 *) Change names of new functions to the new get1/get0 naming
6468 convention: After 'get1', the caller owns a reference count
6469 and has to call ..._free; 'get0' returns a pointer to some
6470 data structure without incrementing reference counters.
6471 (Some of the existing 'get' functions increment a reference
6472 counter, some don't.)
6473 Similarly, 'set1' and 'add1' functions increase reference
6474 counters or duplicate objects.
6477 *) Allow for the possibility of temp RSA key generation failure:
6478 the code used to assume it always worked and crashed on failure.
6481 *) Fix potential buffer overrun problem in BIO_printf().
6482 [Ulf Möller, using public domain code by Patrick Powell; problem
6483 pointed out by David Sacerdote <das33@cornell.edu>]
6485 *) Support EGD <http://www.lothar.com/tech/crypto/>. New functions
6486 RAND_egd() and RAND_status(). In the command line application,
6487 the EGD socket can be specified like a seed file using RANDFILE
6491 *) Allow the string CERTIFICATE to be tolerated in PKCS#7 structures.
6492 Some CAs (e.g. Verisign) distribute certificates in this form.
6495 *) Remove the SSL_ALLOW_ADH compile option and set the default cipher
6496 list to exclude them. This means that no special compilation option
6497 is needed to use anonymous DH: it just needs to be included in the
6501 *) Change the EVP_MD_CTX_type macro so its meaning consistent with
6502 EVP_MD_type. The old functionality is available in a new macro called
6503 EVP_MD_md(). Change code that uses it and update docs.
6506 *) ..._ctrl functions now have corresponding ..._callback_ctrl functions
6507 where the 'void *' argument is replaced by a function pointer argument.
6508 Previously 'void *' was abused to point to functions, which works on
6509 many platforms, but is not correct. As these functions are usually
6510 called by macros defined in OpenSSL header files, most source code
6511 should work without changes.
6514 *) <openssl/opensslconf.h> (which is created by Configure) now contains
6515 sections with information on -D... compiler switches used for
6516 compiling the library so that applications can see them. To enable
6517 one of these sections, a pre-processor symbol OPENSSL_..._DEFINES
6518 must be defined. E.g.,
6519 #define OPENSSL_ALGORITHM_DEFINES
6520 #include <openssl/opensslconf.h>
6521 defines all pertinent NO_<algo> symbols, such as NO_IDEA, NO_RSA, etc.
6522 [Richard Levitte, Ulf and Bodo Möller]
6524 *) Bugfix: Tolerate fragmentation and interleaving in the SSL 3/TLS
6528 *) Change the 'other' type in certificate aux info to a STACK_OF
6529 X509_ALGOR. Although not an AlgorithmIdentifier as such it has
6530 the required ASN1 format: arbitrary types determined by an OID.
6533 *) Add some PEM_write_X509_REQ_NEW() functions and a command line
6534 argument to 'req'. This is not because the function is newer or
6535 better than others it just uses the work 'NEW' in the certificate
6536 request header lines. Some software needs this.
6539 *) Reorganise password command line arguments: now passwords can be
6540 obtained from various sources. Delete the PEM_cb function and make
6541 it the default behaviour: i.e. if the callback is NULL and the
6542 usrdata argument is not NULL interpret it as a null terminated pass
6543 phrase. If usrdata and the callback are NULL then the pass phrase
6544 is prompted for as usual.
6547 *) Add support for the Compaq Atalla crypto accelerator. If it is installed,
6548 the support is automatically enabled. The resulting binaries will
6549 autodetect the card and use it if present.
6550 [Ben Laurie and Compaq Inc.]
6552 *) Work around for Netscape hang bug. This sends certificate request
6553 and server done in one record. Since this is perfectly legal in the
6554 SSL/TLS protocol it isn't a "bug" option and is on by default. See
6555 the bugs/SSLv3 entry for more info.
6558 *) HP-UX tune-up: new unified configs, HP C compiler bug workaround.
6561 *) Add -rand argument to smime and pkcs12 applications and read/write
6565 *) New 'passwd' tool for crypt(3) and apr1 password hashes.
6568 *) Add command line password options to the remaining applications.
6571 *) Bug fix for BN_div_recp() for numerators with an even number of
6575 *) More tests in bntest.c, and changed test_bn output.
6578 *) ./config recognizes MacOS X now.
6581 *) Bug fix for BN_div() when the first words of num and divsor are
6582 equal (it gave wrong results if (rem=(n1-q*d0)&BN_MASK2) < d0).
6585 *) Add support for various broken PKCS#8 formats, and command line
6586 options to produce them.
6589 *) New functions BN_CTX_start(), BN_CTX_get() and BT_CTX_end() to
6590 get temporary BIGNUMs from a BN_CTX.
6593 *) Correct return values in BN_mod_exp_mont() and BN_mod_exp2_mont()
6597 *) Change the SSLeay_add_all_*() functions to OpenSSL_add_all_*() and
6598 include a #define from the old name to the new. The original intent
6599 was that statically linked binaries could for example just call
6600 SSLeay_add_all_ciphers() to just add ciphers to the table and not
6601 link with digests. This never worked becayse SSLeay_add_all_digests()
6602 and SSLeay_add_all_ciphers() were in the same source file so calling
6603 one would link with the other. They are now in separate source files.
6606 *) Add a new -notext option to 'ca' and a -pubkey option to 'spkac'.
6609 *) Use a less unusual form of the Miller-Rabin primality test (it used
6610 a binary algorithm for exponentiation integrated into the Miller-Rabin
6611 loop, our standard modexp algorithms are faster).
6614 *) Support for the EBCDIC character set completed.
6615 [Martin Kraemer <Martin.Kraemer@Mch.SNI.De>]
6617 *) Source code cleanups: use const where appropriate, eliminate casts,
6618 use void * instead of char * in lhash.
6621 *) Bugfix: ssl3_send_server_key_exchange was not restartable
6622 (the state was not changed to SSL3_ST_SW_KEY_EXCH_B, and because of
6623 this the server could overwrite ephemeral keys that the client
6627 *) Turn DSA_is_prime into a macro that calls BN_is_prime,
6628 using 50 iterations of the Rabin-Miller test.
6630 DSA_generate_parameters now uses BN_is_prime_fasttest (with 50
6631 iterations of the Rabin-Miller test as required by the appendix
6632 to FIPS PUB 186[-1]) instead of DSA_is_prime.
6633 As BN_is_prime_fasttest includes trial division, DSA parameter
6634 generation becomes much faster.
6636 This implies a change for the callback functions in DSA_is_prime
6637 and DSA_generate_parameters: The callback function is called once
6638 for each positive witness in the Rabin-Miller test, not just
6639 occasionally in the inner loop; and the parameters to the
6640 callback function now provide an iteration count for the outer
6641 loop rather than for the current invocation of the inner loop.
6642 DSA_generate_parameters additionally can call the callback
6643 function with an 'iteration count' of -1, meaning that a
6644 candidate has passed the trial division test (when q is generated
6645 from an application-provided seed, trial division is skipped).
6648 *) New function BN_is_prime_fasttest that optionally does trial
6649 division before starting the Rabin-Miller test and has
6650 an additional BN_CTX * argument (whereas BN_is_prime always
6651 has to allocate at least one BN_CTX).
6652 'callback(1, -1, cb_arg)' is called when a number has passed the
6653 trial division stage.
6656 *) Fix for bug in CRL encoding. The validity dates weren't being handled
6660 *) New -pkcs12 option to CA.pl script to write out a PKCS#12 file.
6663 *) New function BN_pseudo_rand().
6666 *) Clean up BN_mod_mul_montgomery(): replace the broken (and unreadable)
6667 bignum version of BN_from_montgomery() with the working code from
6668 SSLeay 0.9.0 (the word based version is faster anyway), and clean up
6672 *) Avoid a race condition in s2_clnt.c (function get_server_hello) that
6673 made it impossible to use the same SSL_SESSION data structure in
6674 SSL2 clients in multiple threads.
6677 *) The return value of RAND_load_file() no longer counts bytes obtained
6678 by stat(). RAND_load_file(..., -1) is new and uses the complete file
6679 to seed the PRNG (previously an explicit byte count was required).
6680 [Ulf Möller, Bodo Möller]
6682 *) Clean up CRYPTO_EX_DATA functions, some of these didn't have prototypes
6683 used (char *) instead of (void *) and had casts all over the place.
6686 *) Make BN_generate_prime() return NULL on error if ret!=NULL.
6689 *) Retain source code compatibility for BN_prime_checks macro:
6690 BN_is_prime(..., BN_prime_checks, ...) now uses
6691 BN_prime_checks_for_size to determine the appropriate number of
6692 Rabin-Miller iterations.
6695 *) Diffie-Hellman uses "safe" primes: DH_check() return code renamed to
6696 DH_CHECK_P_NOT_SAFE_PRIME.
6697 (Check if this is true? OpenPGP calls them "strong".)
6700 *) Merge the functionality of "dh" and "gendh" programs into a new program
6701 "dhparam". The old programs are retained for now but will handle DH keys
6702 (instead of parameters) in future.
6705 *) Make the ciphers, s_server and s_client programs check the return values
6706 when a new cipher list is set.
6709 *) Enhance the SSL/TLS cipher mechanism to correctly handle the TLS 56bit
6710 ciphers. Before when the 56bit ciphers were enabled the sorting was
6713 The syntax for the cipher sorting has been extended to support sorting by
6714 cipher-strength (using the strength_bits hard coded in the tables).
6715 The new command is "@STRENGTH" (see also doc/apps/ciphers.pod).
6717 Fix a bug in the cipher-command parser: when supplying a cipher command
6718 string with an "undefined" symbol (neither command nor alphanumeric
6719 [A-Za-z0-9], ssl_set_cipher_list used to hang in an endless loop. Now
6720 an error is flagged.
6722 Due to the strength-sorting extension, the code of the
6723 ssl_create_cipher_list() function was completely rearranged. I hope that
6724 the readability was also increased :-)
6725 [Lutz Jaenicke <Lutz.Jaenicke@aet.TU-Cottbus.DE>]
6727 *) Minor change to 'x509' utility. The -CAcreateserial option now uses 1
6728 for the first serial number and places 2 in the serial number file. This
6729 avoids problems when the root CA is created with serial number zero and
6730 the first user certificate has the same issuer name and serial number
6734 *) Fixes to X509_ATTRIBUTE utilities, change the 'req' program so it uses
6735 the new code. Add documentation for this stuff.
6738 *) Changes to X509_ATTRIBUTE utilities. These have been renamed from
6739 X509_*() to X509at_*() on the grounds that they don't handle X509
6740 structures and behave in an analagous way to the X509v3 functions:
6741 they shouldn't be called directly but wrapper functions should be used
6744 So we also now have some wrapper functions that call the X509at functions
6745 when passed certificate requests. (TO DO: similar things can be done with
6746 PKCS#7 signed and unsigned attributes, PKCS#12 attributes and a few other
6747 things. Some of these need some d2i or i2d and print functionality
6748 because they handle more complex structures.)
6751 *) Add missing #ifndefs that caused missing symbols when building libssl
6752 as a shared library without RSA. Use #ifndef NO_SSL2 instead of
6753 NO_RSA in ssl/s2*.c.
6754 [Kris Kennaway <kris@hub.freebsd.org>, modified by Ulf Möller]
6756 *) Precautions against using the PRNG uninitialized: RAND_bytes() now
6757 has a return value which indicates the quality of the random data
6758 (1 = ok, 0 = not seeded). Also an error is recorded on the thread's
6759 error queue. New function RAND_pseudo_bytes() generates output that is
6760 guaranteed to be unique but not unpredictable. RAND_add is like
6761 RAND_seed, but takes an extra argument for an entropy estimate
6762 (RAND_seed always assumes full entropy).
6765 *) Do more iterations of Rabin-Miller probable prime test (specifically,
6766 3 for 1024-bit primes, 6 for 512-bit primes, 12 for 256-bit primes
6767 instead of only 2 for all lengths; see BN_prime_checks_for_size definition
6768 in crypto/bn/bn_prime.c for the complete table). This guarantees a
6769 false-positive rate of at most 2^-80 for random input.
6772 *) Rewrite ssl3_read_n (ssl/s3_pkt.c) avoiding a couple of bugs.
6775 *) New function X509_CTX_rget_chain() (renamed to X509_CTX_get1_chain
6776 in the 0.9.5 release), this returns the chain
6777 from an X509_CTX structure with a dup of the stack and all
6778 the X509 reference counts upped: so the stack will exist
6779 after X509_CTX_cleanup() has been called. Modify pkcs12.c
6782 Also make SSL_SESSION_print() print out the verify return
6786 *) Add manpage for the pkcs12 command. Also change the default
6787 behaviour so MAC iteration counts are used unless the new
6788 -nomaciter option is used. This improves file security and
6789 only older versions of MSIE (4.0 for example) need it.
6792 *) Honor the no-xxx Configure options when creating .DEF files.
6795 *) Add PKCS#10 attributes to field table: challengePassword,
6796 unstructuredName and unstructuredAddress. These are taken from
6797 draft PKCS#9 v2.0 but are compatible with v1.2 provided no
6798 international characters are used.
6800 More changes to X509_ATTRIBUTE code: allow the setting of types
6801 based on strings. Remove the 'loc' parameter when adding
6802 attributes because these will be a SET OF encoding which is sorted
6806 *) Initial changes to the 'req' utility to allow request generation
6807 automation. This will allow an application to just generate a template
6808 file containing all the field values and have req construct the
6811 Initial support for X509_ATTRIBUTE handling. Stacks of these are
6812 used all over the place including certificate requests and PKCS#7
6813 structures. They are currently handled manually where necessary with
6814 some primitive wrappers for PKCS#7. The new functions behave in a
6815 manner analogous to the X509 extension functions: they allow
6816 attributes to be looked up by NID and added.
6818 Later something similar to the X509V3 code would be desirable to
6819 automatically handle the encoding, decoding and printing of the
6820 more complex types. The string types like challengePassword can
6821 be handled by the string table functions.
6823 Also modified the multi byte string table handling. Now there is
6824 a 'global mask' which masks out certain types. The table itself
6825 can use the flag STABLE_NO_MASK to ignore the mask setting: this
6826 is useful when for example there is only one permissible type
6827 (as in countryName) and using the mask might result in no valid
6831 *) Clean up 'Finished' handling, and add functions SSL_get_finished and
6832 SSL_get_peer_finished to allow applications to obtain the latest
6833 Finished messages sent to the peer or expected from the peer,
6834 respectively. (SSL_get_peer_finished is usually the Finished message
6835 actually received from the peer, otherwise the protocol will be aborted.)
6837 As the Finished message are message digests of the complete handshake
6838 (with a total of 192 bits for TLS 1.0 and more for SSL 3.0), they can
6839 be used for external authentication procedures when the authentication
6840 provided by SSL/TLS is not desired or is not enough.
6843 *) Enhanced support for Alpha Linux is added. Now ./config checks if
6844 the host supports BWX extension and if Compaq C is present on the
6845 $PATH. Just exploiting of the BWX extension results in 20-30%
6846 performance kick for some algorithms, e.g. DES and RC4 to mention
6847 a couple. Compaq C in turn generates ~20% faster code for MD5 and
6851 *) Add support for MS "fast SGC". This is arguably a violation of the
6852 SSL3/TLS protocol. Netscape SGC does two handshakes: the first with
6853 weak crypto and after checking the certificate is SGC a second one
6854 with strong crypto. MS SGC stops the first handshake after receiving
6855 the server certificate message and sends a second client hello. Since
6856 a server will typically do all the time consuming operations before
6857 expecting any further messages from the client (server key exchange
6858 is the most expensive) there is little difference between the two.
6860 To get OpenSSL to support MS SGC we have to permit a second client
6861 hello message after we have sent server done. In addition we have to
6862 reset the MAC if we do get this second client hello.
6865 *) Add a function 'd2i_AutoPrivateKey()' this will automatically decide
6866 if a DER encoded private key is RSA or DSA traditional format. Changed
6867 d2i_PrivateKey_bio() to use it. This is only needed for the "traditional"
6868 format DER encoded private key. Newer code should use PKCS#8 format which
6869 has the key type encoded in the ASN1 structure. Added DER private key
6870 support to pkcs8 application.
6873 *) SSL 3/TLS 1 servers now don't request certificates when an anonymous
6874 ciphersuites has been selected (as required by the SSL 3/TLS 1
6875 specifications). Exception: When SSL_VERIFY_FAIL_IF_NO_PEER_CERT
6876 is set, we interpret this as a request to violate the specification
6877 (the worst that can happen is a handshake failure, and 'correct'
6878 behaviour would result in a handshake failure anyway).
6881 *) In SSL_CTX_add_session, take into account that there might be multiple
6882 SSL_SESSION structures with the same session ID (e.g. when two threads
6883 concurrently obtain them from an external cache).
6884 The internal cache can handle only one SSL_SESSION with a given ID,
6885 so if there's a conflict, we now throw out the old one to achieve
6889 *) Add OIDs for idea and blowfish in CBC mode. This will allow both
6890 to be used in PKCS#5 v2.0 and S/MIME. Also add checking to
6891 some routines that use cipher OIDs: some ciphers do not have OIDs
6892 defined and so they cannot be used for S/MIME and PKCS#5 v2.0 for
6896 *) Simplify the trust setting structure and code. Now we just have
6897 two sequences of OIDs for trusted and rejected settings. These will
6898 typically have values the same as the extended key usage extension
6899 and any application specific purposes.
6901 The trust checking code now has a default behaviour: it will just
6902 check for an object with the same NID as the passed id. Functions can
6903 be provided to override either the default behaviour or the behaviour
6904 for a given id. SSL client, server and email already have functions
6905 in place for compatibility: they check the NID and also return "trusted"
6906 if the certificate is self signed.
6909 *) Add d2i,i2d bio/fp functions for PrivateKey: these convert the
6910 traditional format into an EVP_PKEY structure.
6913 *) Add a password callback function PEM_cb() which either prompts for
6914 a password if usr_data is NULL or otherwise assumes it is a null
6915 terminated password. Allow passwords to be passed on command line
6916 environment or config files in a few more utilities.
6919 *) Add a bunch of DER and PEM functions to handle PKCS#8 format private
6920 keys. Add some short names for PKCS#8 PBE algorithms and allow them
6921 to be specified on the command line for the pkcs8 and pkcs12 utilities.
6922 Update documentation.
6925 *) Support for ASN1 "NULL" type. This could be handled before by using
6926 ASN1_TYPE but there wasn't any function that would try to read a NULL
6927 and produce an error if it couldn't. For compatibility we also have
6928 ASN1_NULL_new() and ASN1_NULL_free() functions but these are faked and
6929 don't allocate anything because they don't need to.
6932 *) Initial support for MacOS is now provided. Examine INSTALL.MacOS
6934 [Andy Polyakov, Roy Woods <roy@centicsystems.ca>]
6936 *) Rebuild of the memory allocation routines used by OpenSSL code and
6937 possibly others as well. The purpose is to make an interface that
6938 provide hooks so anyone can build a separate set of allocation and
6939 deallocation routines to be used by OpenSSL, for example memory
6940 pool implementations, or something else, which was previously hard
6941 since Malloc(), Realloc() and Free() were defined as macros having
6942 the values malloc, realloc and free, respectively (except for Win32
6943 compilations). The same is provided for memory debugging code.
6944 OpenSSL already comes with functionality to find memory leaks, but
6945 this gives people a chance to debug other memory problems.
6947 With these changes, a new set of functions and macros have appeared:
6949 CRYPTO_set_mem_debug_functions() [F]
6950 CRYPTO_get_mem_debug_functions() [F]
6951 CRYPTO_dbg_set_options() [F]
6952 CRYPTO_dbg_get_options() [F]
6953 CRYPTO_malloc_debug_init() [M]
6955 The memory debug functions are NULL by default, unless the library
6956 is compiled with CRYPTO_MDEBUG or friends is defined. If someone
6957 wants to debug memory anyway, CRYPTO_malloc_debug_init() (which
6958 gives the standard debugging functions that come with OpenSSL) or
6959 CRYPTO_set_mem_debug_functions() (tells OpenSSL to use functions
6960 provided by the library user) must be used. When the standard
6961 debugging functions are used, CRYPTO_dbg_set_options can be used to
6962 request additional information:
6963 CRYPTO_dbg_set_options(V_CYRPTO_MDEBUG_xxx) corresponds to setting
6964 the CRYPTO_MDEBUG_xxx macro when compiling the library.
6966 Also, things like CRYPTO_set_mem_functions will always give the
6967 expected result (the new set of functions is used for allocation
6968 and deallocation) at all times, regardless of platform and compiler
6971 To finish it up, some functions that were never use in any other
6972 way than through macros have a new API and new semantic:
6975 CRYPTO_dbg_realloc()
6978 All macros of value have retained their old syntax.
6979 [Richard Levitte and Bodo Moeller]
6981 *) Some S/MIME fixes. The OID for SMIMECapabilities was wrong, the
6982 ordering of SMIMECapabilities wasn't in "strength order" and there
6983 was a missing NULL in the AlgorithmIdentifier for the SHA1 signature
6987 *) Some ASN1 types with illegal zero length encoding (INTEGER,
6988 ENUMERATED and OBJECT IDENTIFIER) choked the ASN1 routines.
6989 [Frans Heymans <fheymans@isaserver.be>, modified by Steve Henson]
6991 *) Merge in my S/MIME library for OpenSSL. This provides a simple
6992 S/MIME API on top of the PKCS#7 code, a MIME parser (with enough
6993 functionality to handle multipart/signed properly) and a utility
6994 called 'smime' to call all this stuff. This is based on code I
6995 originally wrote for Celo who have kindly allowed it to be
6996 included in OpenSSL.
6999 *) Add variants des_set_key_checked and des_set_key_unchecked of
7000 des_set_key (aka des_key_sched). Global variable des_check_key
7001 decides which of these is called by des_set_key; this way
7002 des_check_key behaves as it always did, but applications and
7003 the library itself, which was buggy for des_check_key == 1,
7004 have a cleaner way to pick the version they need.
7007 *) New function PKCS12_newpass() which changes the password of a
7011 *) Modify X509_TRUST and X509_PURPOSE so it also uses a static and
7012 dynamic mix. In both cases the ids can be used as an index into the
7013 table. Also modified the X509_TRUST_add() and X509_PURPOSE_add()
7014 functions so they accept a list of the field values and the
7015 application doesn't need to directly manipulate the X509_TRUST
7019 *) Modify the ASN1_STRING_TABLE stuff so it also uses bsearch and doesn't
7023 *) Modify the way the V3 extension code looks up extensions. This now
7024 works in a similar way to the object code: we have some "standard"
7025 extensions in a static table which is searched with OBJ_bsearch()
7026 and the application can add dynamic ones if needed. The file
7027 crypto/x509v3/ext_dat.h now has the info: this file needs to be
7028 updated whenever a new extension is added to the core code and kept
7029 in ext_nid order. There is a simple program 'tabtest.c' which checks
7030 this. New extensions are not added too often so this file can readily
7031 be maintained manually.
7033 There are two big advantages in doing things this way. The extensions
7034 can be looked up immediately and no longer need to be "added" using
7035 X509V3_add_standard_extensions(): this function now does nothing.
7036 [Side note: I get *lots* of email saying the extension code doesn't
7037 work because people forget to call this function]
7038 Also no dynamic allocation is done unless new extensions are added:
7039 so if we don't add custom extensions there is no need to call
7040 X509V3_EXT_cleanup().
7043 *) Modify enc utility's salting as follows: make salting the default. Add a
7044 magic header, so unsalted files fail gracefully instead of just decrypting
7045 to garbage. This is because not salting is a big security hole, so people
7046 should be discouraged from doing it.
7049 *) Fixes and enhancements to the 'x509' utility. It allowed a message
7050 digest to be passed on the command line but it only used this
7051 parameter when signing a certificate. Modified so all relevant
7052 operations are affected by the digest parameter including the
7053 -fingerprint and -x509toreq options. Also -x509toreq choked if a
7054 DSA key was used because it didn't fix the digest.
7057 *) Initial certificate chain verify code. Currently tests the untrusted
7058 certificates for consistency with the verify purpose (which is set
7059 when the X509_STORE_CTX structure is set up) and checks the pathlength.
7061 There is a NO_CHAIN_VERIFY compilation option to keep the old behaviour:
7062 this is because it will reject chains with invalid extensions whereas
7063 every previous version of OpenSSL and SSLeay made no checks at all.
7065 Trust code: checks the root CA for the relevant trust settings. Trust
7066 settings have an initial value consistent with the verify purpose: e.g.
7067 if the verify purpose is for SSL client use it expects the CA to be
7068 trusted for SSL client use. However the default value can be changed to
7069 permit custom trust settings: one example of this would be to only trust
7070 certificates from a specific "secure" set of CAs.
7072 Also added X509_STORE_CTX_new() and X509_STORE_CTX_free() functions
7073 which should be used for version portability: especially since the
7074 verify structure is likely to change more often now.
7076 SSL integration. Add purpose and trust to SSL_CTX and SSL and functions
7077 to set them. If not set then assume SSL clients will verify SSL servers
7080 Two new options to the verify program: -untrusted allows a set of
7081 untrusted certificates to be passed in and -purpose which sets the
7082 intended purpose of the certificate. If a purpose is set then the
7083 new chain verify code is used to check extension consistency.
7086 *) Support for the authority information access extension.
7089 *) Modify RSA and DSA PEM read routines to transparently handle
7090 PKCS#8 format private keys. New *_PUBKEY_* functions that handle
7091 public keys in a format compatible with certificate
7092 SubjectPublicKeyInfo structures. Unfortunately there were already
7093 functions called *_PublicKey_* which used various odd formats so
7094 these are retained for compatibility: however the DSA variants were
7095 never in a public release so they have been deleted. Changed dsa/rsa
7096 utilities to handle the new format: note no releases ever handled public
7097 keys so we should be OK.
7099 The primary motivation for this change is to avoid the same fiasco
7100 that dogs private keys: there are several incompatible private key
7101 formats some of which are standard and some OpenSSL specific and
7102 require various evil hacks to allow partial transparent handling and
7103 even then it doesn't work with DER formats. Given the option anything
7104 other than PKCS#8 should be dumped: but the other formats have to
7105 stay in the name of compatibility.
7107 With public keys and the benefit of hindsight one standard format
7108 is used which works with EVP_PKEY, RSA or DSA structures: though
7109 it clearly returns an error if you try to read the wrong kind of key.
7111 Added a -pubkey option to the 'x509' utility to output the public key.
7112 Also rename the EVP_PKEY_get_*() to EVP_PKEY_rget_*()
7113 (renamed to EVP_PKEY_get1_*() in the OpenSSL 0.9.5 release) and add
7114 EVP_PKEY_rset_*() functions (renamed to EVP_PKEY_set1_*())
7115 that do the same as the EVP_PKEY_assign_*() except they up the
7116 reference count of the added key (they don't "swallow" the
7120 *) Fixes to crypto/x509/by_file.c the code to read in certificates and
7121 CRLs would fail if the file contained no certificates or no CRLs:
7122 added a new function to read in both types and return the number
7123 read: this means that if none are read it will be an error. The
7124 DER versions of the certificate and CRL reader would always fail
7125 because it isn't possible to mix certificates and CRLs in DER format
7126 without choking one or the other routine. Changed this to just read
7127 a certificate: this is the best we can do. Also modified the code
7128 in apps/verify.c to take notice of return codes: it was previously
7129 attempting to read in certificates from NULL pointers and ignoring
7130 any errors: this is one reason why the cert and CRL reader seemed
7131 to work. It doesn't check return codes from the default certificate
7132 routines: these may well fail if the certificates aren't installed.
7135 *) Code to support otherName option in GeneralName.
7138 *) First update to verify code. Change the verify utility
7139 so it warns if it is passed a self signed certificate:
7140 for consistency with the normal behaviour. X509_verify
7141 has been modified to it will now verify a self signed
7142 certificate if *exactly* the same certificate appears
7143 in the store: it was previously impossible to trust a
7144 single self signed certificate. This means that:
7145 openssl verify ss.pem
7146 now gives a warning about a self signed certificate but
7147 openssl verify -CAfile ss.pem ss.pem
7151 *) For servers, store verify_result in SSL_SESSION data structure
7152 (and add it to external session representation).
7153 This is needed when client certificate verifications fails,
7154 but an application-provided verification callback (set by
7155 SSL_CTX_set_cert_verify_callback) allows accepting the session
7156 anyway (i.e. leaves x509_store_ctx->error != X509_V_OK
7157 but returns 1): When the session is reused, we have to set
7158 ssl->verify_result to the appropriate error code to avoid
7160 [Bodo Moeller, problem pointed out by Lutz Jaenicke]
7162 *) Fix a bug in the new PKCS#7 code: it didn't consider the
7163 case in PKCS7_dataInit() where the signed PKCS7 structure
7164 didn't contain any existing data because it was being created.
7165 [Po-Cheng Chen <pocheng@nst.com.tw>, slightly modified by Steve Henson]
7167 *) Add a salt to the key derivation routines in enc.c. This
7168 forms the first 8 bytes of the encrypted file. Also add a
7169 -S option to allow a salt to be input on the command line.
7172 *) New function X509_cmp(). Oddly enough there wasn't a function
7173 to compare two certificates. We do this by working out the SHA1
7174 hash and comparing that. X509_cmp() will be needed by the trust
7178 *) SSL_get1_session() is like SSL_get_session(), but increments
7179 the reference count in the SSL_SESSION returned.
7180 [Geoff Thorpe <geoff@eu.c2.net>]
7182 *) Fix for 'req': it was adding a null to request attributes.
7183 Also change the X509_LOOKUP and X509_INFO code to handle
7184 certificate auxiliary information.
7187 *) Add support for 40 and 64 bit RC2 and RC4 algorithms: document
7191 *) Add the possibility to add extra information to the memory leak
7192 detecting output, to form tracebacks, showing from where each
7193 allocation was originated: CRYPTO_push_info("constant string") adds
7194 the string plus current file name and line number to a per-thread
7195 stack, CRYPTO_pop_info() does the obvious, CRYPTO_remove_all_info()
7196 is like calling CYRPTO_pop_info() until the stack is empty.
7197 Also updated memory leak detection code to be multi-thread-safe.
7200 *) Add options -text and -noout to pkcs7 utility and delete the
7201 encryption options which never did anything. Update docs.
7204 *) Add options to some of the utilities to allow the pass phrase
7205 to be included on either the command line (not recommended on
7206 OSes like Unix) or read from the environment. Update the
7207 manpages and fix a few bugs.
7210 *) Add a few manpages for some of the openssl commands.
7213 *) Fix the -revoke option in ca. It was freeing up memory twice,
7214 leaking and not finding already revoked certificates.
7217 *) Extensive changes to support certificate auxiliary information.
7218 This involves the use of X509_CERT_AUX structure and X509_AUX
7219 functions. An X509_AUX function such as PEM_read_X509_AUX()
7220 can still read in a certificate file in the usual way but it
7221 will also read in any additional "auxiliary information". By
7222 doing things this way a fair degree of compatibility can be
7223 retained: existing certificates can have this information added
7224 using the new 'x509' options.
7226 Current auxiliary information includes an "alias" and some trust
7227 settings. The trust settings will ultimately be used in enhanced
7228 certificate chain verification routines: currently a certificate
7229 can only be trusted if it is self signed and then it is trusted
7233 *) Fix assembler for Alpha (tested only on DEC OSF not Linux or *BSD).
7234 The problem was that one of the replacement routines had not been working
7235 since SSLeay releases. For now the offending routine has been replaced
7236 with non-optimised assembler. Even so, this now gives around 95%
7237 performance improvement for 1024 bit RSA signs.
7240 *) Hack to fix PKCS#7 decryption when used with some unorthodox RC2
7241 handling. Most clients have the effective key size in bits equal to
7242 the key length in bits: so a 40 bit RC2 key uses a 40 bit (5 byte) key.
7243 A few however don't do this and instead use the size of the decrypted key
7244 to determine the RC2 key length and the AlgorithmIdentifier to determine
7245 the effective key length. In this case the effective key length can still
7246 be 40 bits but the key length can be 168 bits for example. This is fixed
7247 by manually forcing an RC2 key into the EVP_PKEY structure because the
7248 EVP code can't currently handle unusual RC2 key sizes: it always assumes
7249 the key length and effective key length are equal.
7252 *) Add a bunch of functions that should simplify the creation of
7253 X509_NAME structures. Now you should be able to do:
7254 X509_NAME_add_entry_by_txt(nm, "CN", MBSTRING_ASC, "Steve", -1, -1, 0);
7255 and have it automatically work out the correct field type and fill in
7256 the structures. The more adventurous can try:
7257 X509_NAME_add_entry_by_txt(nm, field, MBSTRING_UTF8, str, -1, -1, 0);
7258 and it will (hopefully) work out the correct multibyte encoding.
7261 *) Change the 'req' utility to use the new field handling and multibyte
7262 copy routines. Before the DN field creation was handled in an ad hoc
7263 way in req, ca, and x509 which was rather broken and didn't support
7264 BMPStrings or UTF8Strings. Since some software doesn't implement
7265 BMPStrings or UTF8Strings yet, they can be enabled using the config file
7266 using the dirstring_type option. See the new comment in the default
7267 openssl.cnf for more info.
7270 *) Make crypto/rand/md_rand.c more robust:
7271 - Assure unique random numbers after fork().
7272 - Make sure that concurrent threads access the global counter and
7273 md serializably so that we never lose entropy in them
7274 or use exactly the same state in multiple threads.
7275 Access to the large state is not always serializable because
7276 the additional locking could be a performance killer, and
7277 md should be large enough anyway.
7280 *) New file apps/app_rand.c with commonly needed functionality
7281 for handling the random seed file.
7283 Use the random seed file in some applications that previously did not:
7285 dsaparam -genkey (which also ignored its '-rand' option),
7288 x509 (when signing).
7289 Except on systems with /dev/urandom, it is crucial to have a random
7290 seed file at least for key creation, DSA signing, and for DH exchanges;
7291 for RSA signatures we could do without one.
7293 gendh and gendsa (unlike genrsa) used to read only the first byte
7294 of each file listed in the '-rand' option. The function as previously
7295 found in genrsa is now in app_rand.c and is used by all programs
7296 that support '-rand'.
7299 *) In RAND_write_file, use mode 0600 for creating files;
7300 don't just chmod when it may be too late.
7303 *) Report an error from X509_STORE_load_locations
7304 when X509_LOOKUP_load_file or X509_LOOKUP_add_dir failed.
7307 *) New function ASN1_mbstring_copy() this copies a string in either
7308 ASCII, Unicode, Universal (4 bytes per character) or UTF8 format
7309 into an ASN1_STRING type. A mask of permissible types is passed
7310 and it chooses the "minimal" type to use or an error if not type
7314 *) Add function equivalents to the various macros in asn1.h. The old
7315 macros are retained with an M_ prefix. Code inside the library can
7316 use the M_ macros. External code (including the openssl utility)
7317 should *NOT* in order to be "shared library friendly".
7320 *) Add various functions that can check a certificate's extensions
7321 to see if it usable for various purposes such as SSL client,
7322 server or S/MIME and CAs of these types. This is currently
7323 VERY EXPERIMENTAL but will ultimately be used for certificate chain
7324 verification. Also added a -purpose flag to x509 utility to
7325 print out all the purposes.
7328 *) Add a CRYPTO_EX_DATA to X509 certificate structure and associated
7332 *) New X509V3_{X509,CRL,REVOKED}_get_d2i() functions. These will search
7333 for, obtain and decode and extension and obtain its critical flag.
7334 This allows all the necessary extension code to be handled in a
7335 single function call.
7338 *) RC4 tune-up featuring 30-40% performance improvement on most RISC
7339 platforms. See crypto/rc4/rc4_enc.c for further details.
7342 *) New -noout option to asn1parse. This causes no output to be produced
7343 its main use is when combined with -strparse and -out to extract data
7344 from a file (which may not be in ASN.1 format).
7347 *) Fix for pkcs12 program. It was hashing an invalid certificate pointer
7348 when producing the local key id.
7349 [Richard Levitte <levitte@stacken.kth.se>]
7351 *) New option -dhparam in s_server. This allows a DH parameter file to be
7352 stated explicitly. If it is not stated then it tries the first server
7353 certificate file. The previous behaviour hard coded the filename
7357 *) Add -pubin and -pubout options to the rsa and dsa commands. These allow
7358 a public key to be input or output. For example:
7359 openssl rsa -in key.pem -pubout -out pubkey.pem
7360 Also added necessary DSA public key functions to handle this.
7363 *) Fix so PKCS7_dataVerify() doesn't crash if no certificates are contained
7364 in the message. This was handled by allowing
7365 X509_find_by_issuer_and_serial() to tolerate a NULL passed to it.
7366 [Steve Henson, reported by Sampo Kellomaki <sampo@mail.neuronio.pt>]
7368 *) Fix for bug in d2i_ASN1_bytes(): other ASN1 functions add an extra null
7369 to the end of the strings whereas this didn't. This would cause problems
7370 if strings read with d2i_ASN1_bytes() were later modified.
7371 [Steve Henson, reported by Arne Ansper <arne@ats.cyber.ee>]
7373 *) Fix for base64 decode bug. When a base64 bio reads only one line of
7374 data and it contains EOF it will end up returning an error. This is
7375 caused by input 46 bytes long. The cause is due to the way base64
7376 BIOs find the start of base64 encoded data. They do this by trying a
7377 trial decode on each line until they find one that works. When they
7378 do a flag is set and it starts again knowing it can pass all the
7379 data directly through the decoder. Unfortunately it doesn't reset
7380 the context it uses. This means that if EOF is reached an attempt
7381 is made to pass two EOFs through the context and this causes the
7382 resulting error. This can also cause other problems as well. As is
7383 usual with these problems it takes *ages* to find and the fix is
7384 trivial: move one line.
7385 [Steve Henson, reported by ian@uns.ns.ac.yu (Ivan Nejgebauer) ]
7387 *) Ugly workaround to get s_client and s_server working under Windows. The
7388 old code wouldn't work because it needed to select() on sockets and the
7389 tty (for keypresses and to see if data could be written). Win32 only
7390 supports select() on sockets so we select() with a 1s timeout on the
7391 sockets and then see if any characters are waiting to be read, if none
7392 are present then we retry, we also assume we can always write data to
7393 the tty. This isn't nice because the code then blocks until we've
7394 received a complete line of data and it is effectively polling the
7395 keyboard at 1s intervals: however it's quite a bit better than not
7396 working at all :-) A dedicated Windows application might handle this
7397 with an event loop for example.
7400 *) Enhance RSA_METHOD structure. Now there are two extra methods, rsa_sign
7401 and rsa_verify. When the RSA_FLAGS_SIGN_VER option is set these functions
7402 will be called when RSA_sign() and RSA_verify() are used. This is useful
7403 if rsa_pub_dec() and rsa_priv_enc() equivalents are not available.
7404 For this to work properly RSA_public_decrypt() and RSA_private_encrypt()
7405 should *not* be used: RSA_sign() and RSA_verify() must be used instead.
7406 This necessitated the support of an extra signature type NID_md5_sha1
7407 for SSL signatures and modifications to the SSL library to use it instead
7408 of calling RSA_public_decrypt() and RSA_private_encrypt().
7411 *) Add new -verify -CAfile and -CApath options to the crl program, these
7412 will lookup a CRL issuers certificate and verify the signature in a
7413 similar way to the verify program. Tidy up the crl program so it
7414 no longer accesses structures directly. Make the ASN1 CRL parsing a bit
7415 less strict. It will now permit CRL extensions even if it is not
7416 a V2 CRL: this will allow it to tolerate some broken CRLs.
7419 *) Initialize all non-automatic variables each time one of the openssl
7420 sub-programs is started (this is necessary as they may be started
7421 multiple times from the "OpenSSL>" prompt).
7422 [Lennart Bang, Bodo Moeller]
7424 *) Preliminary compilation option RSA_NULL which disables RSA crypto without
7425 removing all other RSA functionality (this is what NO_RSA does). This
7426 is so (for example) those in the US can disable those operations covered
7427 by the RSA patent while allowing storage and parsing of RSA keys and RSA
7431 *) Non-copying interface to BIO pairs.
7432 (still largely untested)
7435 *) New function ANS1_tag2str() to convert an ASN1 tag to a descriptive
7436 ASCII string. This was handled independently in various places before.
7439 *) New functions UTF8_getc() and UTF8_putc() that parse and generate
7440 UTF8 strings a character at a time.
7443 *) Use client_version from client hello to select the protocol
7444 (s23_srvr.c) and for RSA client key exchange verification
7445 (s3_srvr.c), as required by the SSL 3.0/TLS 1.0 specifications.
7448 *) Add various utility functions to handle SPKACs, these were previously
7449 handled by poking round in the structure internals. Added new function
7450 NETSCAPE_SPKI_print() to print out SPKAC and a new utility 'spkac' to
7451 print, verify and generate SPKACs. Based on an original idea from
7452 Massimiliano Pala <madwolf@comune.modena.it> but extensively modified.
7455 *) RIPEMD160 is operational on all platforms and is back in 'make test'.
7458 *) Allow the config file extension section to be overwritten on the
7459 command line. Based on an original idea from Massimiliano Pala
7460 <madwolf@comune.modena.it>. The new option is called -extensions
7461 and can be applied to ca, req and x509. Also -reqexts to override
7462 the request extensions in req and -crlexts to override the crl extensions
7466 *) Add new feature to the SPKAC handling in ca. Now you can include
7467 the same field multiple times by preceding it by "XXXX." for example:
7470 this is the same syntax as used in the req config file.
7473 *) Allow certificate extensions to be added to certificate requests. These
7474 are specified in a 'req_extensions' option of the req section of the
7475 config file. They can be printed out with the -text option to req but
7476 are otherwise ignored at present.
7479 *) Fix a horrible bug in enc_read() in crypto/evp/bio_enc.c: if the first
7480 data read consists of only the final block it would not decrypted because
7481 EVP_CipherUpdate() would correctly report zero bytes had been decrypted.
7482 A misplaced 'break' also meant the decrypted final block might not be
7483 copied until the next read.
7486 *) Initial support for DH_METHOD. Again based on RSA_METHOD. Also added
7487 a few extra parameters to the DH structure: these will be useful if
7488 for example we want the value of 'q' or implement X9.42 DH.
7491 *) Initial support for DSA_METHOD. This is based on the RSA_METHOD and
7492 provides hooks that allow the default DSA functions or functions on a
7493 "per key" basis to be replaced. This allows hardware acceleration and
7494 hardware key storage to be handled without major modification to the
7495 library. Also added low level modexp hooks and CRYPTO_EX structure and
7496 associated functions.
7499 *) Add a new flag to memory BIOs, BIO_FLAG_MEM_RDONLY. This marks the BIO
7500 as "read only": it can't be written to and the buffer it points to will
7501 not be freed. Reading from a read only BIO is much more efficient than
7502 a normal memory BIO. This was added because there are several times when
7503 an area of memory needs to be read from a BIO. The previous method was
7504 to create a memory BIO and write the data to it, this results in two
7505 copies of the data and an O(n^2) reading algorithm. There is a new
7506 function BIO_new_mem_buf() which creates a read only memory BIO from
7507 an area of memory. Also modified the PKCS#7 routines to use read only
7511 *) Bugfix: ssl23_get_client_hello did not work properly when called in
7512 state SSL23_ST_SR_CLNT_HELLO_B, i.e. when the first 7 bytes of
7513 a SSLv2-compatible client hello for SSLv3 or TLSv1 could be read,
7514 but a retry condition occured while trying to read the rest.
7517 *) The PKCS7_ENC_CONTENT_new() function was setting the content type as
7518 NID_pkcs7_encrypted by default: this was wrong since this should almost
7519 always be NID_pkcs7_data. Also modified the PKCS7_set_type() to handle
7520 the encrypted data type: this is a more sensible place to put it and it
7521 allows the PKCS#12 code to be tidied up that duplicated this
7525 *) Changed obj_dat.pl script so it takes its input and output files on
7526 the command line. This should avoid shell escape redirection problems
7530 *) Initial support for certificate extension requests, these are included
7531 in things like Xenroll certificate requests. Included functions to allow
7532 extensions to be obtained and added.
7535 *) -crlf option to s_client and s_server for sending newlines as
7536 CRLF (as required by many protocols).
7539 Changes between 0.9.3a and 0.9.4 [09 Aug 1999]
7541 *) Install libRSAglue.a when OpenSSL is built with RSAref.
7542 [Ralf S. Engelschall]
7544 *) A few more ``#ifndef NO_FP_API / #endif'' pairs for consistency.
7545 [Andrija Antonijevic <TheAntony2@bigfoot.com>]
7547 *) Fix -startdate and -enddate (which was missing) arguments to 'ca'
7551 *) New function DSA_dup_DH, which duplicates DSA parameters/keys as
7552 DH parameters/keys (q is lost during that conversion, but the resulting
7553 DH parameters contain its length).
7555 For 1024-bit p, DSA_generate_parameters followed by DSA_dup_DH is
7556 much faster than DH_generate_parameters (which creates parameters
7557 where p = 2*q + 1), and also the smaller q makes DH computations
7558 much more efficient (160-bit exponentiation instead of 1024-bit
7559 exponentiation); so this provides a convenient way to support DHE
7560 ciphersuites in SSL/TLS servers (see ssl/ssltest.c). It is of
7561 utter importance to use
7562 SSL_CTX_set_options(s_ctx, SSL_OP_SINGLE_DH_USE);
7564 SSL_set_options(s_ctx, SSL_OP_SINGLE_DH_USE);
7565 when such DH parameters are used, because otherwise small subgroup
7566 attacks may become possible!
7569 *) Avoid memory leak in i2d_DHparams.
7572 *) Allow the -k option to be used more than once in the enc program:
7573 this allows the same encrypted message to be read by multiple recipients.
7576 *) New function OBJ_obj2txt(buf, buf_len, a, no_name), this converts
7577 an ASN1_OBJECT to a text string. If the "no_name" parameter is set then
7578 it will always use the numerical form of the OID, even if it has a short
7582 *) Added an extra RSA flag: RSA_FLAG_EXT_PKEY. Previously the rsa_mod_exp
7583 method only got called if p,q,dmp1,dmq1,iqmp components were present,
7584 otherwise bn_mod_exp was called. In the case of hardware keys for example
7585 no private key components need be present and it might store extra data
7586 in the RSA structure, which cannot be accessed from bn_mod_exp.
7587 By setting RSA_FLAG_EXT_PKEY rsa_mod_exp will always be called for
7588 private key operations.
7591 *) Added support for SPARC Linux.
7594 *) pem_password_cb function type incompatibly changed from
7595 typedef int pem_password_cb(char *buf, int size, int rwflag);
7597 ....(char *buf, int size, int rwflag, void *userdata);
7598 so that applications can pass data to their callbacks:
7599 The PEM[_ASN1]_{read,write}... functions and macros now take an
7600 additional void * argument, which is just handed through whenever
7601 the password callback is called.
7602 [Damien Miller <dmiller@ilogic.com.au>; tiny changes by Bodo Moeller]
7604 New function SSL_CTX_set_default_passwd_cb_userdata.
7606 Compatibility note: As many C implementations push function arguments
7607 onto the stack in reverse order, the new library version is likely to
7608 interoperate with programs that have been compiled with the old
7609 pem_password_cb definition (PEM_whatever takes some data that
7610 happens to be on the stack as its last argument, and the callback
7611 just ignores this garbage); but there is no guarantee whatsoever that
7614 *) The -DPLATFORM="\"$(PLATFORM)\"" definition and the similar -DCFLAGS=...
7615 (both in crypto/Makefile.ssl for use by crypto/cversion.c) caused
7616 problems not only on Windows, but also on some Unix platforms.
7617 To avoid problematic command lines, these definitions are now in an
7618 auto-generated file crypto/buildinf.h (created by crypto/Makefile.ssl
7619 for standard "make" builds, by util/mk1mf.pl for "mk1mf" builds).
7622 *) MIPS III/IV assembler module is reimplemented.
7625 *) More DES library cleanups: remove references to srand/rand and
7626 delete an unused file.
7629 *) Add support for the the free Netwide assembler (NASM) under Win32,
7630 since not many people have MASM (ml) and it can be hard to obtain.
7631 This is currently experimental but it seems to work OK and pass all
7632 the tests. Check out INSTALL.W32 for info.
7635 *) Fix memory leaks in s3_clnt.c: All non-anonymous SSL3/TLS1 connections
7636 without temporary keys kept an extra copy of the server key,
7637 and connections with temporary keys did not free everything in case
7641 *) New function RSA_check_key and new openssl rsa option -check
7642 for verifying the consistency of RSA keys.
7643 [Ulf Moeller, Bodo Moeller]
7645 *) Various changes to make Win32 compile work:
7646 1. Casts to avoid "loss of data" warnings in p5_crpt2.c
7647 2. Change unsigned int to int in b_dump.c to avoid "signed/unsigned
7648 comparison" warnings.
7649 3. Add sk_<TYPE>_sort to DEF file generator and do make update.
7652 *) Add a debugging option to PKCS#5 v2 key generation function: when
7653 you #define DEBUG_PKCS5V2 passwords, salts, iteration counts and
7654 derived keys are printed to stderr.
7657 *) Copy the flags in ASN1_STRING_dup().
7658 [Roman E. Pavlov <pre@mo.msk.ru>]
7660 *) The x509 application mishandled signing requests containing DSA
7661 keys when the signing key was also DSA and the parameters didn't match.
7663 It was supposed to omit the parameters when they matched the signing key:
7664 the verifying software was then supposed to automatically use the CA's
7665 parameters if they were absent from the end user certificate.
7667 Omitting parameters is no longer recommended. The test was also
7668 the wrong way round! This was probably due to unusual behaviour in
7669 EVP_cmp_parameters() which returns 1 if the parameters match.
7670 This meant that parameters were omitted when they *didn't* match and
7671 the certificate was useless. Certificates signed with 'ca' didn't have
7673 [Steve Henson, reported by Doug Erickson <Doug.Erickson@Part.NET>]
7675 *) Memory leak checking (-DCRYPTO_MDEBUG) had some problems.
7676 The interface is as follows:
7677 Applications can use
7678 CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_ON) aka MemCheck_start(),
7679 CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_OFF) aka MemCheck_stop();
7680 "off" is now the default.
7681 The library internally uses
7682 CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_DISABLE) aka MemCheck_off(),
7683 CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_ENABLE) aka MemCheck_on()
7684 to disable memory-checking temporarily.
7686 Some inconsistent states that previously were possible (and were
7687 even the default) are now avoided.
7689 -DCRYPTO_MDEBUG_TIME is new and additionally stores the current time
7690 with each memory chunk allocated; this is occasionally more helpful
7691 than just having a counter.
7693 -DCRYPTO_MDEBUG_THREAD is also new and adds the thread ID.
7695 -DCRYPTO_MDEBUG_ALL enables all of the above, plus any future
7699 *) Introduce "mode" for SSL structures (with defaults in SSL_CTX),
7700 which largely parallels "options", but is for changing API behaviour,
7701 whereas "options" are about protocol behaviour.
7702 Initial "mode" flags are:
7704 SSL_MODE_ENABLE_PARTIAL_WRITE Allow SSL_write to report success when
7705 a single record has been written.
7706 SSL_MODE_ACCEPT_MOVING_WRITE_BUFFER Don't insist that SSL_write
7707 retries use the same buffer location.
7708 (But all of the contents must be
7712 *) Bugfix: SSL_set_options ignored its parameter, only SSL_CTX_set_options
7715 *) Fix problems with no-hmac etc.
7716 [Ulf Möller, pointed out by Brian Wellington <bwelling@tislabs.com>]
7718 *) New functions RSA_get_default_method(), RSA_set_method() and
7719 RSA_get_method(). These allows replacement of RSA_METHODs without having
7720 to mess around with the internals of an RSA structure.
7723 *) Fix memory leaks in DSA_do_sign and DSA_is_prime.
7724 Also really enable memory leak checks in openssl.c and in some
7726 [Chad C. Mulligan, Bodo Moeller]
7728 *) Fix a bug in d2i_ASN1_INTEGER() and i2d_ASN1_INTEGER() which can mess
7729 up the length of negative integers. This has now been simplified to just
7730 store the length when it is first determined and use it later, rather
7731 than trying to keep track of where data is copied and updating it to
7733 [Steve Henson, reported by Brien Wheeler
7734 <bwheeler@authentica-security.com>]
7736 *) Add a new function PKCS7_signatureVerify. This allows the verification
7737 of a PKCS#7 signature but with the signing certificate passed to the
7738 function itself. This contrasts with PKCS7_dataVerify which assumes the
7739 certificate is present in the PKCS#7 structure. This isn't always the
7740 case: certificates can be omitted from a PKCS#7 structure and be
7741 distributed by "out of band" means (such as a certificate database).
7744 *) Complete the PEM_* macros with DECLARE_PEM versions to replace the
7745 function prototypes in pem.h, also change util/mkdef.pl to add the
7746 necessary function names.
7749 *) mk1mf.pl (used by Windows builds) did not properly read the
7750 options set by Configure in the top level Makefile, and Configure
7751 was not even able to write more than one option correctly.
7752 Fixed, now "no-idea no-rc5 -DCRYPTO_MDEBUG" etc. works as intended.
7755 *) New functions CONF_load_bio() and CONF_load_fp() to allow a config
7756 file to be loaded from a BIO or FILE pointer. The BIO version will
7757 for example allow memory BIOs to contain config info.
7760 *) New function "CRYPTO_num_locks" that returns CRYPTO_NUM_LOCKS.
7761 Whoever hopes to achieve shared-library compatibility across versions
7762 must use this, not the compile-time macro.
7763 (Exercise 0.9.4: Which is the minimum library version required by
7765 Note: All this applies only to multi-threaded programs, others don't
7769 *) Add missing case to s3_clnt.c state machine -- one of the new SSL tests
7770 through a BIO pair triggered the default case, i.e.
7771 SSLerr(...,SSL_R_UNKNOWN_STATE).
7774 *) New "BIO pair" concept (crypto/bio/bss_bio.c) so that applications
7775 can use the SSL library even if none of the specific BIOs is
7779 *) Fix a bug in i2d_DSAPublicKey() which meant it returned the wrong value
7780 for the encoded length.
7781 [Jeon KyoungHo <khjeon@sds.samsung.co.kr>]
7783 *) Add initial documentation of the X509V3 functions.
7786 *) Add a new pair of functions PEM_write_PKCS8PrivateKey() and
7787 PEM_write_bio_PKCS8PrivateKey() that are equivalent to
7788 PEM_write_PrivateKey() and PEM_write_bio_PrivateKey() but use the more
7789 secure PKCS#8 private key format with a high iteration count.
7792 *) Fix determination of Perl interpreter: A perl or perl5
7793 _directory_ in $PATH was also accepted as the interpreter.
7794 [Ralf S. Engelschall]
7796 *) Fix demos/sign/sign.c: well there wasn't anything strictly speaking
7797 wrong with it but it was very old and did things like calling
7798 PEM_ASN1_read() directly and used MD5 for the hash not to mention some
7802 *) Fix demos/selfsign.c: it used obsolete and deleted functions, changed
7803 to use the new extension code.
7806 *) Implement the PEM_read/PEM_write functions in crypto/pem/pem_all.c
7807 with macros. This should make it easier to change their form, add extra
7808 arguments etc. Fix a few PEM prototypes which didn't have cipher as a
7812 *) Add to configuration table a new entry that can specify an alternative
7813 name for unistd.h (for pre-POSIX systems); we need this for NeXTstep,
7814 according to Mark Crispin <MRC@Panda.COM>.
7818 *) DES CBC did not update the IV. Weird.
7821 des_cbc_encrypt does not update the IV, but des_ncbc_encrypt does.
7822 Changing the behaviour of the former might break existing programs --
7823 where IV updating is needed, des_ncbc_encrypt can be used.
7826 *) When bntest is run from "make test" it drives bc to check its
7827 calculations, as well as internally checking them. If an internal check
7828 fails, it needs to cause bc to give a non-zero result or make test carries
7829 on without noticing the failure. Fixed.
7832 *) DES library cleanups.
7835 *) Add support for PKCS#5 v2.0 PBE algorithms. This will permit PKCS#8 to be
7836 used with any cipher unlike PKCS#5 v1.5 which can at most handle 64 bit
7837 ciphers. NOTE: although the key derivation function has been verified
7838 against some published test vectors it has not been extensively tested
7839 yet. Added a -v2 "cipher" option to pkcs8 application to allow the use
7843 *) Instead of "mkdir -p", which is not fully portable, use new
7844 Perl script "util/mkdir-p.pl".
7847 *) Rewrite the way password based encryption (PBE) is handled. It used to
7848 assume that the ASN1 AlgorithmIdentifier parameter was a PBEParameter
7849 structure. This was true for the PKCS#5 v1.5 and PKCS#12 PBE algorithms
7850 but doesn't apply to PKCS#5 v2.0 where it can be something else. Now
7851 the 'parameter' field of the AlgorithmIdentifier is passed to the
7852 underlying key generation function so it must do its own ASN1 parsing.
7853 This has also changed the EVP_PBE_CipherInit() function which now has a
7854 'parameter' argument instead of literal salt and iteration count values
7855 and the function EVP_PBE_ALGOR_CipherInit() has been deleted.
7858 *) Support for PKCS#5 v1.5 compatible password based encryption algorithms
7859 and PKCS#8 functionality. New 'pkcs8' application linked to openssl.
7860 Needed to change the PEM_STRING_EVP_PKEY value which was just "PRIVATE
7861 KEY" because this clashed with PKCS#8 unencrypted string. Since this
7862 value was just used as a "magic string" and not used directly its
7863 value doesn't matter.
7866 *) Introduce some semblance of const correctness to BN. Shame C doesn't
7870 *) "linux-sparc64" configuration (ultrapenguin).
7871 [Ray Miller <ray.miller@oucs.ox.ac.uk>]
7872 "linux-sparc" configuration.
7873 [Christian Forster <fo@hawo.stw.uni-erlangen.de>]
7875 *) config now generates no-xxx options for missing ciphers.
7878 *) Support the EBCDIC character set (work in progress).
7879 File ebcdic.c not yet included because it has a different license.
7880 [Martin Kraemer <Martin.Kraemer@MchP.Siemens.De>]
7882 *) Support BS2000/OSD-POSIX.
7883 [Martin Kraemer <Martin.Kraemer@MchP.Siemens.De>]
7885 *) Make callbacks for key generation use void * instead of char *.
7888 *) Make S/MIME samples compile (not yet tested).
7891 *) Additional typesafe stacks.
7894 *) New configuration variants "bsdi-elf-gcc" (BSD/OS 4.x).
7898 Changes between 0.9.3 and 0.9.3a [29 May 1999]
7900 *) New configuration variant "sco5-gcc".
7902 *) Updated some demos.
7903 [Sean O Riordain, Wade Scholine]
7905 *) Add missing BIO_free at exit of pkcs12 application.
7908 *) Fix memory leak in conf.c.
7911 *) Updates for Win32 to assembler version of MD5.
7914 *) Set #! path to perl in apps/der_chop to where we found it
7915 instead of using a fixed path.
7918 *) SHA library changes for irix64-mips4-cc.
7921 *) Improvements for VMS support.
7925 Changes between 0.9.2b and 0.9.3 [24 May 1999]
7927 *) Bignum library bug fix. IRIX 6 passes "make test" now!
7928 This also avoids the problems with SC4.2 and unpatched SC5.
7929 [Andy Polyakov <appro@fy.chalmers.se>]
7931 *) New functions sk_num, sk_value and sk_set to replace the previous macros.
7932 These are required because of the typesafe stack would otherwise break
7933 existing code. If old code used a structure member which used to be STACK
7934 and is now STACK_OF (for example cert in a PKCS7_SIGNED structure) with
7935 sk_num or sk_value it would produce an error because the num, data members
7936 are not present in STACK_OF. Now it just produces a warning. sk_set
7937 replaces the old method of assigning a value to sk_value
7938 (e.g. sk_value(x, i) = y) which the library used in a few cases. Any code
7939 that does this will no longer work (and should use sk_set instead) but
7940 this could be regarded as a "questionable" behaviour anyway.
7943 *) Fix most of the other PKCS#7 bugs. The "experimental" code can now
7944 correctly handle encrypted S/MIME data.
7947 *) Change type of various DES function arguments from des_cblock
7948 (which means, in function argument declarations, pointer to char)
7949 to des_cblock * (meaning pointer to array with 8 char elements),
7950 which allows the compiler to do more typechecking; it was like
7951 that back in SSLeay, but with lots of ugly casts.
7953 Introduce new type const_des_cblock.
7956 *) Reorganise the PKCS#7 library and get rid of some of the more obvious
7957 problems: find RecipientInfo structure that matches recipient certificate
7958 and initialise the ASN1 structures properly based on passed cipher.
7961 *) Belatedly make the BN tests actually check the results.
7964 *) Fix the encoding and decoding of negative ASN1 INTEGERS and conversion
7965 to and from BNs: it was completely broken. New compilation option
7966 NEG_PUBKEY_BUG to allow for some broken certificates that encode public
7967 key elements as negative integers.
7970 *) Reorganize and speed up MD5.
7971 [Andy Polyakov <appro@fy.chalmers.se>]
7974 [Richard Levitte <richard@levitte.org>]
7976 *) New option -out to asn1parse to allow the parsed structure to be
7977 output to a file. This is most useful when combined with the -strparse
7978 option to examine the output of things like OCTET STRINGS.
7981 *) Make SSL library a little more fool-proof by not requiring any longer
7982 that SSL_set_{accept,connect}_state be called before
7983 SSL_{accept,connect} may be used (SSL_set_..._state is omitted
7984 in many applications because usually everything *appeared* to work as
7985 intended anyway -- now it really works as intended).
7988 *) Move openssl.cnf out of lib/.
7991 *) Fix various things to let OpenSSL even pass ``egcc -pipe -O2 -Wall
7992 -Wshadow -Wpointer-arith -Wcast-align -Wmissing-prototypes
7993 -Wmissing-declarations -Wnested-externs -Winline'' with EGCS 1.1.2+
7994 [Ralf S. Engelschall]
7996 *) Various fixes to the EVP and PKCS#7 code. It may now be able to
7997 handle PKCS#7 enveloped data properly.
7998 [Sebastian Akerman <sak@parallelconsulting.com>, modified by Steve]
8000 *) Create a duplicate of the SSL_CTX's CERT in SSL_new instead of
8001 copying pointers. The cert_st handling is changed by this in
8002 various ways (and thus what used to be known as ctx->default_cert
8003 is now called ctx->cert, since we don't resort to s->ctx->[default_]cert
8004 any longer when s->cert does not give us what we need).
8005 ssl_cert_instantiate becomes obsolete by this change.
8006 As soon as we've got the new code right (possibly it already is?),
8007 we have solved a couple of bugs of the earlier code where s->cert
8008 was used as if it could not have been shared with other SSL structures.
8010 Note that using the SSL API in certain dirty ways now will result
8011 in different behaviour than observed with earlier library versions:
8012 Changing settings for an SSL_CTX *ctx after having done s = SSL_new(ctx)
8013 does not influence s as it used to.
8015 In order to clean up things more thoroughly, inside SSL_SESSION
8016 we don't use CERT any longer, but a new structure SESS_CERT
8017 that holds per-session data (if available); currently, this is
8018 the peer's certificate chain and, for clients, the server's certificate
8019 and temporary key. CERT holds only those values that can have
8020 meaningful defaults in an SSL_CTX.
8023 *) New function X509V3_EXT_i2d() to create an X509_EXTENSION structure
8024 from the internal representation. Various PKCS#7 fixes: remove some
8025 evil casts and set the enc_dig_alg field properly based on the signing
8029 *) Allow PKCS#12 password to be set from the command line or the
8030 environment. Let 'ca' get its config file name from the environment
8031 variables "OPENSSL_CONF" or "SSLEAY_CONF" (for consistency with 'req'
8035 *) Allow certificate policies extension to use an IA5STRING for the
8036 organization field. This is contrary to the PKIX definition but
8037 VeriSign uses it and IE5 only recognises this form. Document 'x509'
8041 *) Add PEDANTIC compiler flag to allow compilation with gcc -pedantic,
8042 without disallowing inline assembler and the like for non-pedantic builds.
8045 *) Support Borland C++ builder.
8046 [Janez Jere <jj@void.si>, modified by Ulf Möller]
8051 *) SHA-1 cleanups and performance enhancements.
8052 [Andy Polyakov <appro@fy.chalmers.se>]
8054 *) Sparc v8plus assembler for the bignum library.
8055 [Andy Polyakov <appro@fy.chalmers.se>]
8057 *) Accept any -xxx and +xxx compiler options in Configure.
8060 *) Update HPUX configuration.
8063 *) Add missing sk_<type>_unshift() function to safestack.h
8064 [Ralf S. Engelschall]
8066 *) New function SSL_CTX_use_certificate_chain_file that sets the
8067 "extra_cert"s in addition to the certificate. (This makes sense
8068 only for "PEM" format files, as chains as a whole are not
8072 *) Support verify_depth from the SSL API.
8073 x509_vfy.c had what can be considered an off-by-one-error:
8074 Its depth (which was not part of the external interface)
8075 was actually counting the number of certificates in a chain;
8076 now it really counts the depth.
8079 *) Bugfix in crypto/x509/x509_cmp.c: The SSLerr macro was used
8080 instead of X509err, which often resulted in confusing error
8081 messages since the error codes are not globally unique
8082 (e.g. an alleged error in ssl3_accept when a certificate
8083 didn't match the private key).
8085 *) New function SSL_CTX_set_session_id_context that allows to set a default
8086 value (so that you don't need SSL_set_session_id_context for each
8087 connection using the SSL_CTX).
8090 *) OAEP decoding bug fix.
8093 *) Support INSTALL_PREFIX for package builders, as proposed by
8097 *) New Configure options "threads" and "no-threads". For systems
8098 where the proper compiler options are known (currently Solaris
8099 and Linux), "threads" is the default.
8102 *) New script util/mklink.pl as a faster substitute for util/mklink.sh.
8105 *) Install various scripts to $(OPENSSLDIR)/misc, not to
8106 $(INSTALLTOP)/bin -- they shouldn't clutter directories
8107 such as /usr/local/bin.
8110 *) "make linux-shared" to build shared libraries.
8111 [Niels Poppe <niels@netbox.org>]
8113 *) New Configure option no-<cipher> (rsa, idea, rc5, ...).
8116 *) Add the PKCS#12 API documentation to openssl.txt. Preliminary support for
8117 extension adding in x509 utility.
8120 *) Remove NOPROTO sections and error code comments.
8123 *) Partial rewrite of the DEF file generator to now parse the ANSI
8127 *) New Configure options --prefix=DIR and --openssldir=DIR.
8130 *) Complete rewrite of the error code script(s). It is all now handled
8131 by one script at the top level which handles error code gathering,
8132 header rewriting and C source file generation. It should be much better
8133 than the old method: it now uses a modified version of Ulf's parser to
8134 read the ANSI prototypes in all header files (thus the old K&R definitions
8135 aren't needed for error creation any more) and do a better job of
8136 translating function codes into names. The old 'ASN1 error code imbedded
8137 in a comment' is no longer necessary and it doesn't use .err files which
8138 have now been deleted. Also the error code call doesn't have to appear all
8139 on one line (which resulted in some large lines...).
8142 *) Change #include filenames from <foo.h> to <openssl/foo.h>.
8145 *) Change behaviour of ssl2_read when facing length-0 packets: Don't return
8146 0 (which usually indicates a closed connection), but continue reading.
8149 *) Fix some race conditions.
8152 *) Add support for CRL distribution points extension. Add Certificate
8153 Policies and CRL distribution points documentation.
8156 *) Move the autogenerated header file parts to crypto/opensslconf.h.
8159 *) Fix new 56-bit DES export ciphersuites: they were using 7 bytes instead of
8160 8 of keying material. Merlin has also confirmed interop with this fix
8161 between OpenSSL and Baltimore C/SSL 2.0 and J/SSL 2.0.
8162 [Merlin Hughes <merlin@baltimore.ie>]
8164 *) Fix lots of warnings.
8165 [Richard Levitte <levitte@stacken.kth.se>]
8167 *) In add_cert_dir() in crypto/x509/by_dir.c, break out of the loop if
8168 the directory spec didn't end with a LIST_SEPARATOR_CHAR.
8169 [Richard Levitte <levitte@stacken.kth.se>]
8171 *) Fix problems with sizeof(long) == 8.
8172 [Andy Polyakov <appro@fy.chalmers.se>]
8174 *) Change functions to ANSI C.
8177 *) Fix typos in error codes.
8178 [Martin Kraemer <Martin.Kraemer@MchP.Siemens.De>, Ulf Möller]
8180 *) Remove defunct assembler files from Configure.
8183 *) SPARC v8 assembler BIGNUM implementation.
8184 [Andy Polyakov <appro@fy.chalmers.se>]
8186 *) Support for Certificate Policies extension: both print and set.
8187 Various additions to support the r2i method this uses.
8190 *) A lot of constification, and fix a bug in X509_NAME_oneline() that could
8191 return a const string when you are expecting an allocated buffer.
8194 *) Add support for ASN1 types UTF8String and VISIBLESTRING, also the CHOICE
8195 types DirectoryString and DisplayText.
8198 *) Add code to allow r2i extensions to access the configuration database,
8199 add an LHASH database driver and add several ctx helper functions.
8202 *) Fix an evil bug in bn_expand2() which caused various BN functions to
8203 fail when they extended the size of a BIGNUM.
8206 *) Various utility functions to handle SXNet extension. Modify mkdef.pl to
8207 support typesafe stack.
8210 *) Fix typo in SSL_[gs]et_options().
8211 [Nils Frostberg <nils@medcom.se>]
8213 *) Delete various functions and files that belonged to the (now obsolete)
8214 old X509V3 handling code.
8217 *) New Configure option "rsaref".
8220 *) Don't auto-generate pem.h.
8223 *) Introduce type-safe ASN.1 SETs.
8226 *) Convert various additional casted stacks to type-safe STACK_OF() variants.
8227 [Ben Laurie, Ralf S. Engelschall, Steve Henson]
8229 *) Introduce type-safe STACKs. This will almost certainly break lots of code
8230 that links with OpenSSL (well at least cause lots of warnings), but fear
8231 not: the conversion is trivial, and it eliminates loads of evil casts. A
8232 few STACKed things have been converted already. Feel free to convert more.
8233 In the fullness of time, I'll do away with the STACK type altogether.
8236 *) Add `openssl ca -revoke <certfile>' facility which revokes a certificate
8237 specified in <certfile> by updating the entry in the index.txt file.
8238 This way one no longer has to edit the index.txt file manually for
8239 revoking a certificate. The -revoke option does the gory details now.
8240 [Massimiliano Pala <madwolf@openca.org>, Ralf S. Engelschall]
8242 *) Fix `openssl crl -noout -text' combination where `-noout' killed the
8243 `-text' option at all and this way the `-noout -text' combination was
8244 inconsistent in `openssl crl' with the friends in `openssl x509|rsa|dsa'.
8245 [Ralf S. Engelschall]
8247 *) Make sure a corresponding plain text error message exists for the
8248 X509_V_ERR_CERT_REVOKED/23 error number which can occur when a
8249 verify callback function determined that a certificate was revoked.
8250 [Ralf S. Engelschall]
8252 *) Bugfix: In test/testenc, don't test "openssl <cipher>" for
8253 ciphers that were excluded, e.g. by -DNO_IDEA. Also, test
8254 all available cipers including rc5, which was forgotten until now.
8255 In order to let the testing shell script know which algorithms
8256 are available, a new (up to now undocumented) command
8257 "openssl list-cipher-commands" is used.
8260 *) Bugfix: s_client occasionally would sleep in select() when
8261 it should have checked SSL_pending() first.
8264 *) New functions DSA_do_sign and DSA_do_verify to provide access to
8265 the raw DSA values prior to ASN.1 encoding.
8268 *) Tweaks to Configure
8269 [Niels Poppe <niels@netbox.org>]
8271 *) Add support for PKCS#5 v2.0 ASN1 PBES2 structures. No other support,
8275 *) New variables $(RANLIB) and $(PERL) in the Makefiles.
8278 *) New config option to avoid instructions that are illegal on the 80386.
8279 The default code is faster, but requires at least a 486.
8282 *) Got rid of old SSL2_CLIENT_VERSION (inconsistently used) and
8283 SSL2_SERVER_VERSION (not used at all) macros, which are now the
8284 same as SSL2_VERSION anyway.
8287 *) New "-showcerts" option for s_client.
8290 *) Still more PKCS#12 integration. Add pkcs12 application to openssl
8291 application. Various cleanups and fixes.
8294 *) More PKCS#12 integration. Add new pkcs12 directory with Makefile.ssl and
8295 modify error routines to work internally. Add error codes and PBE init
8296 to library startup routines.
8299 *) Further PKCS#12 integration. Added password based encryption, PKCS#8 and
8300 packing functions to asn1 and evp. Changed function names and error
8301 codes along the way.
8304 *) PKCS12 integration: and so it begins... First of several patches to
8305 slowly integrate PKCS#12 functionality into OpenSSL. Add PKCS#12
8306 objects to objects.h
8309 *) Add a new 'indent' option to some X509V3 extension code. Initial ASN1
8310 and display support for Thawte strong extranet extension.
8313 *) Add LinuxPPC support.
8314 [Jeff Dubrule <igor@pobox.org>]
8316 *) Get rid of redundant BN file bn_mulw.c, and rename bn_div64 to
8317 bn_div_words in alpha.s.
8318 [Hannes Reinecke <H.Reinecke@hw.ac.uk> and Ben Laurie]
8320 *) Make sure the RSA OAEP test is skipped under -DRSAref because
8321 OAEP isn't supported when OpenSSL is built with RSAref.
8322 [Ulf Moeller <ulf@fitug.de>]
8324 *) Move definitions of IS_SET/IS_SEQUENCE inside crypto/asn1/asn1.h
8325 so they no longer are missing under -DNOPROTO.
8326 [Soren S. Jorvang <soren@t.dk>]
8329 Changes between 0.9.1c and 0.9.2b [22 Mar 1999]
8331 *) Make SSL_get_peer_cert_chain() work in servers. Unfortunately, it still
8332 doesn't work when the session is reused. Coming soon!
8335 *) Fix a security hole, that allows sessions to be reused in the wrong
8336 context thus bypassing client cert protection! All software that uses
8337 client certs and session caches in multiple contexts NEEDS PATCHING to
8338 allow session reuse! A fuller solution is in the works.
8339 [Ben Laurie, problem pointed out by Holger Reif, Bodo Moeller (and ???)]
8341 *) Some more source tree cleanups (removed obsolete files
8342 crypto/bf/asm/bf586.pl, test/test.txt and crypto/sha/asm/f.s; changed
8343 permission on "config" script to be executable) and a fix for the INSTALL
8345 [Ulf Moeller <ulf@fitug.de>]
8347 *) Remove some legacy and erroneous uses of malloc, free instead of
8349 [Lennart Bang <lob@netstream.se>, with minor changes by Steve]
8351 *) Make rsa_oaep_test return non-zero on error.
8352 [Ulf Moeller <ulf@fitug.de>]
8354 *) Add support for native Solaris shared libraries. Configure
8355 solaris-sparc-sc4-pic, make, then run shlib/solaris-sc4.sh. It'd be nice
8356 if someone would make that last step automatic.
8357 [Matthias Loepfe <Matthias.Loepfe@AdNovum.CH>]
8359 *) ctx_size was not built with the right compiler during "make links". Fixed.
8362 *) Change the meaning of 'ALL' in the cipher list. It now means "everything
8363 except NULL ciphers". This means the default cipher list will no longer
8364 enable NULL ciphers. They need to be specifically enabled e.g. with
8365 the string "DEFAULT:eNULL".
8368 *) Fix to RSA private encryption routines: if p < q then it would
8369 occasionally produce an invalid result. This will only happen with
8370 externally generated keys because OpenSSL (and SSLeay) ensure p > q.
8373 *) Be less restrictive and allow also `perl util/perlpath.pl
8374 /path/to/bin/perl' in addition to `perl util/perlpath.pl /path/to/bin',
8375 because this way one can also use an interpreter named `perl5' (which is
8376 usually the name of Perl 5.xxx on platforms where an Perl 4.x is still
8377 installed as `perl').
8378 [Matthias Loepfe <Matthias.Loepfe@adnovum.ch>]
8380 *) Let util/clean-depend.pl work also with older Perl 5.00x versions.
8381 [Matthias Loepfe <Matthias.Loepfe@adnovum.ch>]
8383 *) Fix Makefile.org so CC,CFLAG etc are passed to 'make links' add
8384 advapi32.lib to Win32 build and change the pem test comparision
8385 to fc.exe (thanks to Ulrich Kroener <kroneru@yahoo.com> for the
8386 suggestion). Fix misplaced ASNI prototypes and declarations in evp.h
8387 and crypto/des/ede_cbcm_enc.c.
8390 *) DES quad checksum was broken on big-endian architectures. Fixed.
8393 *) Comment out two functions in bio.h that aren't implemented. Fix up the
8394 Win32 test batch file so it (might) work again. The Win32 test batch file
8395 is horrible: I feel ill....
8398 *) Move various #ifdefs around so NO_SYSLOG, NO_DIRENT etc are now selected
8399 in e_os.h. Audit of header files to check ANSI and non ANSI
8400 sections: 10 functions were absent from non ANSI section and not exported
8401 from Windows DLLs. Fixed up libeay.num for new functions.
8404 *) Make `openssl version' output lines consistent.
8405 [Ralf S. Engelschall]
8407 *) Fix Win32 symbol export lists for BIO functions: Added
8408 BIO_get_ex_new_index, BIO_get_ex_num, BIO_get_ex_data and BIO_set_ex_data
8409 to ms/libeay{16,32}.def.
8410 [Ralf S. Engelschall]
8412 *) Second round of fixing the OpenSSL perl/ stuff. It now at least compiled
8413 fine under Unix and passes some trivial tests I've now added. But the
8414 whole stuff is horribly incomplete, so a README.1ST with a disclaimer was
8415 added to make sure no one expects that this stuff really works in the
8416 OpenSSL 0.9.2 release. Additionally I've started to clean the XS sources
8417 up and fixed a few little bugs and inconsistencies in OpenSSL.{pm,xs} and
8419 [Ralf S. Engelschall]
8421 *) Fix the generation of two part addresses in perl.
8422 [Kenji Miyake <kenji@miyake.org>, integrated by Ben Laurie]
8424 *) Add config entry for Linux on MIPS.
8425 [John Tobey <jtobey@channel1.com>]
8427 *) Make links whenever Configure is run, unless we are on Windoze.
8430 *) Permit extensions to be added to CRLs using crl_section in openssl.cnf.
8431 Currently only issuerAltName and AuthorityKeyIdentifier make any sense
8435 *) Add a useful kludge to allow package maintainers to specify compiler and
8436 other platforms details on the command line without having to patch the
8437 Configure script everytime: One now can use ``perl Configure
8438 <id>:<details>'', i.e. platform ids are allowed to have details appended
8439 to them (seperated by colons). This is treated as there would be a static
8440 pre-configured entry in Configure's %table under key <id> with value
8441 <details> and ``perl Configure <id>'' is called. So, when you want to
8442 perform a quick test-compile under FreeBSD 3.1 with pgcc and without
8443 assembler stuff you can use ``perl Configure "FreeBSD-elf:pgcc:-O6:::"''
8444 now, which overrides the FreeBSD-elf entry on-the-fly.
8445 [Ralf S. Engelschall]
8447 *) Disable new TLS1 ciphersuites by default: they aren't official yet.
8450 *) Allow DSO flags like -fpic, -fPIC, -KPIC etc. to be specified
8451 on the `perl Configure ...' command line. This way one can compile
8452 OpenSSL libraries with Position Independent Code (PIC) which is needed
8453 for linking it into DSOs.
8454 [Ralf S. Engelschall]
8456 *) Remarkably, export ciphers were totally broken and no-one had noticed!
8460 *) Cleaned up the LICENSE document: The official contact for any license
8461 questions now is the OpenSSL core team under openssl-core@openssl.org.
8462 And add a paragraph about the dual-license situation to make sure people
8463 recognize that _BOTH_ the OpenSSL license _AND_ the SSLeay license apply
8464 to the OpenSSL toolkit.
8465 [Ralf S. Engelschall]
8467 *) General source tree makefile cleanups: Made `making xxx in yyy...'
8468 display consistent in the source tree and replaced `/bin/rm' by `rm'.
8469 Additonally cleaned up the `make links' target: Remove unnecessary
8470 semicolons, subsequent redundant removes, inline point.sh into mklink.sh
8471 to speed processing and no longer clutter the display with confusing
8472 stuff. Instead only the actually done links are displayed.
8473 [Ralf S. Engelschall]
8475 *) Permit null encryption ciphersuites, used for authentication only. It used
8476 to be necessary to set the preprocessor define SSL_ALLOW_ENULL to do this.
8477 It is now necessary to set SSL_FORBID_ENULL to prevent the use of null
8481 *) Add a bunch of fixes to the PKCS#7 stuff. It used to sometimes reorder
8482 signed attributes when verifying signatures (this would break them),
8483 the detached data encoding was wrong and public keys obtained using
8484 X509_get_pubkey() weren't freed.
8487 *) Add text documentation for the BUFFER functions. Also added a work around
8488 to a Win95 console bug. This was triggered by the password read stuff: the
8489 last character typed gets carried over to the next fread(). If you were
8490 generating a new cert request using 'req' for example then the last
8491 character of the passphrase would be CR which would then enter the first
8495 *) Added the new `Includes OpenSSL Cryptography Software' button as
8496 doc/openssl_button.{gif,html} which is similar in style to the old SSLeay
8497 button and can be used by applications based on OpenSSL to show the
8498 relationship to the OpenSSL project.
8499 [Ralf S. Engelschall]
8501 *) Remove confusing variables in function signatures in files
8502 ssl/ssl_lib.c and ssl/ssl.h.
8503 [Lennart Bong <lob@kulthea.stacken.kth.se>]
8505 *) Don't install bss_file.c under PREFIX/include/
8506 [Lennart Bong <lob@kulthea.stacken.kth.se>]
8508 *) Get the Win32 compile working again. Modify mkdef.pl so it can handle
8509 functions that return function pointers and has support for NT specific
8510 stuff. Fix mk1mf.pl and VC-32.pl to support NT differences also. Various
8511 #ifdef WIN32 and WINNTs sprinkled about the place and some changes from
8512 unsigned to signed types: this was killing the Win32 compile.
8515 *) Add new certificate file to stack functions,
8516 SSL_add_dir_cert_subjects_to_stack() and
8517 SSL_add_file_cert_subjects_to_stack(). These largely supplant
8518 SSL_load_client_CA_file(), and can be used to add multiple certs easily
8519 to a stack (usually this is then handed to SSL_CTX_set_client_CA_list()).
8520 This means that Apache-SSL and similar packages don't have to mess around
8521 to add as many CAs as they want to the preferred list.
8524 *) Experiment with doxygen documentation. Currently only partially applied to
8526 See http://www.stack.nl/~dimitri/doxygen/index.html, and run doxygen with
8527 openssl.doxy as the configuration file.
8530 *) Get rid of remaining C++-style comments which strict C compilers hate.
8531 [Ralf S. Engelschall, pointed out by Carlos Amengual]
8533 *) Changed BN_RECURSION in bn_mont.c to BN_RECURSION_MONT so it is not
8534 compiled in by default: it has problems with large keys.
8537 *) Add a bunch of SSL_xxx() functions for configuring the temporary RSA and
8538 DH private keys and/or callback functions which directly correspond to
8539 their SSL_CTX_xxx() counterparts but work on a per-connection basis. This
8540 is needed for applications which have to configure certificates on a
8541 per-connection basis (e.g. Apache+mod_ssl) instead of a per-context basis
8543 For the RSA certificate situation is makes no difference, but
8544 for the DSA certificate situation this fixes the "no shared cipher"
8545 problem where the OpenSSL cipher selection procedure failed because the
8546 temporary keys were not overtaken from the context and the API provided
8547 no way to reconfigure them.
8548 The new functions now let applications reconfigure the stuff and they
8549 are in detail: SSL_need_tmp_RSA, SSL_set_tmp_rsa, SSL_set_tmp_dh,
8550 SSL_set_tmp_rsa_callback and SSL_set_tmp_dh_callback. Additionally a new
8551 non-public-API function ssl_cert_instantiate() is used as a helper
8552 function and also to reduce code redundancy inside ssl_rsa.c.
8553 [Ralf S. Engelschall]
8555 *) Move s_server -dcert and -dkey options out of the undocumented feature
8556 area because they are useful for the DSA situation and should be
8557 recognized by the users.
8558 [Ralf S. Engelschall]
8560 *) Fix the cipher decision scheme for export ciphers: the export bits are
8561 *not* within SSL_MKEY_MASK or SSL_AUTH_MASK, they are within
8562 SSL_EXP_MASK. So, the original variable has to be used instead of the
8563 already masked variable.
8564 [Richard Levitte <levitte@stacken.kth.se>]
8566 *) Fix 'port' variable from `int' to `unsigned int' in crypto/bio/b_sock.c
8567 [Richard Levitte <levitte@stacken.kth.se>]
8569 *) Change type of another md_len variable in pk7_doit.c:PKCS7_dataFinal()
8570 from `int' to `unsigned int' because it's a length and initialized by
8571 EVP_DigestFinal() which expects an `unsigned int *'.
8572 [Richard Levitte <levitte@stacken.kth.se>]
8574 *) Don't hard-code path to Perl interpreter on shebang line of Configure
8575 script. Instead use the usual Shell->Perl transition trick.
8576 [Ralf S. Engelschall]
8578 *) Make `openssl x509 -noout -modulus' functional also for DSA certificates
8579 (in addition to RSA certificates) to match the behaviour of `openssl dsa
8580 -noout -modulus' as it's already the case for `openssl rsa -noout
8581 -modulus'. For RSA the -modulus is the real "modulus" while for DSA
8582 currently the public key is printed (a decision which was already done by
8583 `openssl dsa -modulus' in the past) which serves a similar purpose.
8584 Additionally the NO_RSA no longer completely removes the whole -modulus
8585 option; it now only avoids using the RSA stuff. Same applies to NO_DSA
8587 [Ralf S. Engelschall]
8589 *) Add Arne Ansper's reliable BIO - this is an encrypted, block-digested
8590 BIO. See the source (crypto/evp/bio_ok.c) for more info.
8591 [Arne Ansper <arne@ats.cyber.ee>]
8593 *) Dump the old yucky req code that tried (and failed) to allow raw OIDs
8594 to be added. Now both 'req' and 'ca' can use new objects defined in the
8598 *) Add cool BIO that does syslog (or event log on NT).
8599 [Arne Ansper <arne@ats.cyber.ee>, integrated by Ben Laurie]
8601 *) Add support for new TLS ciphersuites, TLS_RSA_EXPORT56_WITH_RC4_56_MD5,
8602 TLS_RSA_EXPORT56_WITH_RC2_CBC_56_MD5 and
8603 TLS_RSA_EXPORT56_WITH_DES_CBC_SHA, as specified in "56-bit Export Cipher
8604 Suites For TLS", draft-ietf-tls-56-bit-ciphersuites-00.txt.
8607 *) Add preliminary config info for new extension code.
8610 *) Make RSA_NO_PADDING really use no padding.
8611 [Ulf Moeller <ulf@fitug.de>]
8613 *) Generate errors when private/public key check is done.
8616 *) Overhaul for 'crl' utility. New function X509_CRL_print. Partial support
8617 for some CRL extensions and new objects added.
8620 *) Really fix the ASN1 IMPLICIT bug this time... Partial support for private
8621 key usage extension and fuller support for authority key id.
8624 *) Add OAEP encryption for the OpenSSL crypto library. OAEP is the improved
8625 padding method for RSA, which is recommended for new applications in PKCS
8626 #1 v2.0 (RFC 2437, October 1998).
8627 OAEP (Optimal Asymmetric Encryption Padding) has better theoretical
8628 foundations than the ad-hoc padding used in PKCS #1 v1.5. It is secure
8629 against Bleichbacher's attack on RSA.
8630 [Ulf Moeller <ulf@fitug.de>, reformatted, corrected and integrated by
8633 *) Updates to the new SSL compression code
8634 [Eric A. Young, (from changes to C2Net SSLeay, integrated by Mark Cox)]
8636 *) Fix so that the version number in the master secret, when passed
8637 via RSA, checks that if TLS was proposed, but we roll back to SSLv3
8638 (because the server will not accept higher), that the version number
8639 is 0x03,0x01, not 0x03,0x00
8640 [Eric A. Young, (from changes to C2Net SSLeay, integrated by Mark Cox)]
8642 *) Run extensive memory leak checks on SSL apps. Fixed *lots* of memory
8643 leaks in ssl/ relating to new X509_get_pubkey() behaviour. Also fixes
8644 in apps/ and an unrelated leak in crypto/dsa/dsa_vrf.c
8647 *) Support for RAW extensions where an arbitrary extension can be
8648 created by including its DER encoding. See apps/openssl.cnf for
8652 *) Make sure latest Perl versions don't interpret some generated C array
8653 code as Perl array code in the crypto/err/err_genc.pl script.
8654 [Lars Weber <3weber@informatik.uni-hamburg.de>]
8656 *) Modify ms/do_ms.bat to not generate assembly language makefiles since
8657 not many people have the assembler. Various Win32 compilation fixes and
8658 update to the INSTALL.W32 file with (hopefully) more accurate Win32
8662 *) Modify configure script 'Configure' to automatically create crypto/date.h
8663 file under Win32 and also build pem.h from pem.org. New script
8664 util/mkfiles.pl to create the MINFO file on environments that can't do a
8665 'make files': perl util/mkfiles.pl >MINFO should work.
8668 *) Major rework of DES function declarations, in the pursuit of correctness
8669 and purity. As a result, many evil casts evaporated, and some weirdness,
8670 too. You may find this causes warnings in your code. Zapping your evil
8671 casts will probably fix them. Mostly.
8674 *) Fix for a typo in asn1.h. Bug fix to object creation script
8675 obj_dat.pl. It considered a zero in an object definition to mean
8676 "end of object": none of the objects in objects.h have any zeros
8677 so it wasn't spotted.
8678 [Steve Henson, reported by Erwann ABALEA <eabalea@certplus.com>]
8680 *) Add support for Triple DES Cipher Block Chaining with Output Feedback
8681 Masking (CBCM). In the absence of test vectors, the best I have been able
8682 to do is check that the decrypt undoes the encrypt, so far. Send me test
8683 vectors if you have them.
8686 *) Correct calculation of key length for export ciphers (too much space was
8687 allocated for null ciphers). This has not been tested!
8690 *) Modifications to the mkdef.pl for Win32 DEF file creation. The usage
8691 message is now correct (it understands "crypto" and "ssl" on its
8692 command line). There is also now an "update" option. This will update
8693 the util/ssleay.num and util/libeay.num files with any new functions.
8695 perl util/mkdef.pl crypto ssl update
8696 it will update them.
8699 *) Overhauled the Perl interface (perl/*):
8700 - ported BN stuff to OpenSSL's different BN library
8701 - made the perl/ source tree CVS-aware
8702 - renamed the package from SSLeay to OpenSSL (the files still contain
8703 their history because I've copied them in the repository)
8704 - removed obsolete files (the test scripts will be replaced
8705 by better Test::Harness variants in the future)
8706 [Ralf S. Engelschall]
8708 *) First cut for a very conservative source tree cleanup:
8709 1. merge various obsolete readme texts into doc/ssleay.txt
8710 where we collect the old documents and readme texts.
8711 2. remove the first part of files where I'm already sure that we no
8712 longer need them because of three reasons: either they are just temporary
8713 files which were left by Eric or they are preserved original files where
8714 I've verified that the diff is also available in the CVS via "cvs diff
8715 -rSSLeay_0_8_1b" or they were renamed (as it was definitely the case for
8716 the crypto/md/ stuff).
8717 [Ralf S. Engelschall]
8719 *) More extension code. Incomplete support for subject and issuer alt
8720 name, issuer and authority key id. Change the i2v function parameters
8721 and add an extra 'crl' parameter in the X509V3_CTX structure: guess
8722 what that's for :-) Fix to ASN1 macro which messed up
8723 IMPLICIT tag and add f_enum.c which adds a2i, i2a for ENUMERATED.
8726 *) Preliminary support for ENUMERATED type. This is largely copied from the
8730 *) Add new function, EVP_MD_CTX_copy() to replace frequent use of memcpy.
8731 [Eric A. Young, (from changes to C2Net SSLeay, integrated by Mark Cox)]
8733 *) Make sure `make rehash' target really finds the `openssl' program.
8734 [Ralf S. Engelschall, Matthias Loepfe <Matthias.Loepfe@adnovum.ch>]
8736 *) Squeeze another 7% of speed out of MD5 assembler, at least on a P2. I'd
8737 like to hear about it if this slows down other processors.
8740 *) Add CygWin32 platform information to Configure script.
8741 [Alan Batie <batie@aahz.jf.intel.com>]
8743 *) Fixed ms/32all.bat script: `no_asm' -> `no-asm'
8744 [Rainer W. Gerling <gerling@mpg-gv.mpg.de>]
8746 *) New program nseq to manipulate netscape certificate sequences
8749 *) Modify crl2pkcs7 so it supports multiple -certfile arguments. Fix a
8753 *) Fixes to BN code. Previously the default was to define BN_RECURSION
8754 but the BN code had some problems that would cause failures when
8755 doing certificate verification and some other functions.
8756 [Eric A. Young, (from changes to C2Net SSLeay, integrated by Mark Cox)]
8758 *) Add ASN1 and PEM code to support netscape certificate sequences.
8761 *) Add ASN1 and PEM code to support netscape certificate sequences.
8764 *) Add several PKIX and private extended key usage OIDs.
8767 *) Modify the 'ca' program to handle the new extension code. Modify
8768 openssl.cnf for new extension format, add comments.
8771 *) More X509 V3 changes. Fix typo in v3_bitstr.c. Add support to 'req'
8772 and add a sample to openssl.cnf so req -x509 now adds appropriate
8776 *) Continued X509 V3 changes. Add to other makefiles, integrate with the
8777 error code, add initial support to X509_print() and x509 application.
8780 *) Takes a deep breath and start addding X509 V3 extension support code. Add
8781 files in crypto/x509v3. Move original stuff to crypto/x509v3/old. All this
8782 stuff is currently isolated and isn't even compiled yet.
8785 *) Continuing patches for GeneralizedTime. Fix up certificate and CRL
8786 ASN1 to use ASN1_TIME and modify print routines to use ASN1_TIME_print.
8787 Removed the versions check from X509 routines when loading extensions:
8788 this allows certain broken certificates that don't set the version
8789 properly to be processed.
8792 *) Deal with irritating shit to do with dependencies, in YAAHW (Yet Another
8793 Ad Hoc Way) - Makefile.ssls now all contain local dependencies, which
8794 can still be regenerated with "make depend".
8797 *) Spelling mistake in C version of CAST-128.
8798 [Ben Laurie, reported by Jeremy Hylton <jeremy@cnri.reston.va.us>]
8800 *) Changes to the error generation code. The perl script err-code.pl
8801 now reads in the old error codes and retains the old numbers, only
8802 adding new ones if necessary. It also only changes the .err files if new
8803 codes are added. The makefiles have been modified to only insert errors
8804 when needed (to avoid needlessly modifying header files). This is done
8805 by only inserting errors if the .err file is newer than the auto generated
8806 C file. To rebuild all the error codes from scratch (the old behaviour)
8807 either modify crypto/Makefile.ssl to pass the -regen flag to err_code.pl
8808 or delete all the .err files.
8811 *) CAST-128 was incorrectly implemented for short keys. The C version has
8812 been fixed, but is untested. The assembler versions are also fixed, but
8813 new assembler HAS NOT BEEN GENERATED FOR WIN32 - the Makefile needs fixing
8814 to regenerate it if needed.
8815 [Ben Laurie, reported (with fix for C version) by Jun-ichiro itojun
8816 Hagino <itojun@kame.net>]
8818 *) File was opened incorrectly in randfile.c.
8819 [Ulf Möller <ulf@fitug.de>]
8821 *) Beginning of support for GeneralizedTime. d2i, i2d, check and print
8822 functions. Also ASN1_TIME suite which is a CHOICE of UTCTime or
8823 GeneralizedTime. ASN1_TIME is the proper type used in certificates et
8824 al: it's just almost always a UTCTime. Note this patch adds new error
8825 codes so do a "make errors" if there are problems.
8828 *) Correct Linux 1 recognition in config.
8829 [Ulf Möller <ulf@fitug.de>]
8831 *) Remove pointless MD5 hash when using DSA keys in ca.
8832 [Anonymous <nobody@replay.com>]
8834 *) Generate an error if given an empty string as a cert directory. Also
8835 generate an error if handed NULL (previously returned 0 to indicate an
8836 error, but didn't set one).
8837 [Ben Laurie, reported by Anonymous <nobody@replay.com>]
8839 *) Add prototypes to SSL methods. Make SSL_write's buffer const, at last.
8842 *) Fix the dummy function BN_ref_mod_exp() in rsaref.c to have the correct
8843 parameters. This was causing a warning which killed off the Win32 compile.
8846 *) Remove C++ style comments from crypto/bn/bn_local.h.
8847 [Neil Costigan <neil.costigan@celocom.com>]
8849 *) The function OBJ_txt2nid was broken. It was supposed to return a nid
8850 based on a text string, looking up short and long names and finally
8851 "dot" format. The "dot" format stuff didn't work. Added new function
8852 OBJ_txt2obj to do the same but return an ASN1_OBJECT and rewrote
8853 OBJ_txt2nid to use it. OBJ_txt2obj can also return objects even if the
8854 OID is not part of the table.
8857 *) Add prototypes to X509 lookup/verify methods, fixing a bug in
8858 X509_LOOKUP_by_alias().
8861 *) Sort openssl functions by name.
8864 *) Get the gendsa program working (hopefully) and add it to app list. Remove
8865 encryption from sample DSA keys (in case anyone is interested the password
8869 *) Make _all_ *_free functions accept a NULL pointer.
8870 [Frans Heymans <fheymans@isaserver.be>]
8872 *) If a DH key is generated in s3_srvr.c, don't blow it by trying to use
8874 [Anonymous <nobody@replay.com>]
8876 *) s_server should send the CAfile as acceptable CAs, not its own cert.
8877 [Bodo Moeller <3moeller@informatik.uni-hamburg.de>]
8879 *) Don't blow it for numeric -newkey arguments to apps/req.
8880 [Bodo Moeller <3moeller@informatik.uni-hamburg.de>]
8882 *) Temp key "for export" tests were wrong in s3_srvr.c.
8883 [Anonymous <nobody@replay.com>]
8885 *) Add prototype for temp key callback functions
8886 SSL_CTX_set_tmp_{rsa,dh}_callback().
8889 *) Make DH_free() tolerate being passed a NULL pointer (like RSA_free() and
8890 DSA_free()). Make X509_PUBKEY_set() check for errors in d2i_PublicKey().
8893 *) X509_name_add_entry() freed the wrong thing after an error.
8894 [Arne Ansper <arne@ats.cyber.ee>]
8896 *) rsa_eay.c would attempt to free a NULL context.
8897 [Arne Ansper <arne@ats.cyber.ee>]
8899 *) BIO_s_socket() had a broken should_retry() on Windoze.
8900 [Arne Ansper <arne@ats.cyber.ee>]
8902 *) BIO_f_buffer() didn't pass on BIO_CTRL_FLUSH.
8903 [Arne Ansper <arne@ats.cyber.ee>]
8905 *) Make sure the already existing X509_STORE->depth variable is initialized
8906 in X509_STORE_new(), but document the fact that this variable is still
8907 unused in the certificate verification process.
8908 [Ralf S. Engelschall]
8910 *) Fix the various library and apps files to free up pkeys obtained from
8911 X509_PUBKEY_get() et al. Also allow x509.c to handle netscape extensions.
8914 *) Fix reference counting in X509_PUBKEY_get(). This makes
8915 demos/maurice/example2.c work, amongst others, probably.
8916 [Steve Henson and Ben Laurie]
8918 *) First cut of a cleanup for apps/. First the `ssleay' program is now named
8919 `openssl' and second, the shortcut symlinks for the `openssl <command>'
8920 are no longer created. This way we have a single and consistent command
8921 line interface `openssl <command>', similar to `cvs <command>'.
8922 [Ralf S. Engelschall, Paul Sutton and Ben Laurie]
8924 *) ca.c: move test for DSA keys inside #ifndef NO_DSA. Make pubkey
8925 BIT STRING wrapper always have zero unused bits.
8928 *) Add CA.pl, perl version of CA.sh, add extended key usage OID.
8931 *) Make the top-level INSTALL documentation easier to understand.
8934 *) Makefiles updated to exit if an error occurs in a sub-directory
8935 make (including if user presses ^C) [Paul Sutton]
8937 *) Make Montgomery context stuff explicit in RSA data structure.
8940 *) Fix build order of pem and err to allow for generated pem.h.
8943 *) Fix renumbering bug in X509_NAME_delete_entry().
8946 *) Enhanced the err-ins.pl script so it makes the error library number
8947 global and can add a library name. This is needed for external ASN1 and
8948 other error libraries.
8951 *) Fixed sk_insert which never worked properly.
8954 *) Fix ASN1 macros so they can handle indefinite length construted
8955 EXPLICIT tags. Some non standard certificates use these: they can now
8959 *) Merged the various old/obsolete SSLeay documentation files (doc/xxx.doc)
8960 into a single doc/ssleay.txt bundle. This way the information is still
8961 preserved but no longer messes up this directory. Now it's new room for
8962 the new set of documenation files.
8963 [Ralf S. Engelschall]
8965 *) SETs were incorrectly DER encoded. This was a major pain, because they
8966 shared code with SEQUENCEs, which aren't coded the same. This means that
8967 almost everything to do with SETs or SEQUENCEs has either changed name or
8968 number of arguments.
8969 [Ben Laurie, based on a partial fix by GP Jayan <gp@nsj.co.jp>]
8971 *) Fix test data to work with the above.
8974 *) Fix the RSA header declarations that hid a bug I fixed in 0.9.0b but
8975 was already fixed by Eric for 0.9.1 it seems.
8976 [Ben Laurie - pointed out by Ulf Möller <ulf@fitug.de>]
8978 *) Autodetect FreeBSD3.
8981 *) Fix various bugs in Configure. This affects the following platforms:
8985 unixware-2.0-pentium
8989 *) Eliminate generated files from CVS. Reorder tests to regenerate files
8990 before they are needed.
8993 *) Generate Makefile.ssl from Makefile.org (to keep CVS happy).
8997 Changes between 0.9.1b and 0.9.1c [23-Dec-1998]
8999 *) Added OPENSSL_VERSION_NUMBER to crypto/crypto.h and
9000 changed SSLeay to OpenSSL in version strings.
9001 [Ralf S. Engelschall]
9003 *) Some fixups to the top-level documents.
9006 *) Fixed the nasty bug where rsaref.h was not found under compile-time
9007 because the symlink to include/ was missing.
9008 [Ralf S. Engelschall]
9010 *) Incorporated the popular no-RSA/DSA-only patches
9011 which allow to compile a RSA-free SSLeay.
9012 [Andrew Cooke / Interrader Ldt., Ralf S. Engelschall]
9014 *) Fixed nasty rehash problem under `make -f Makefile.ssl links'
9015 when "ssleay" is still not found.
9016 [Ralf S. Engelschall]
9018 *) Added more platforms to Configure: Cray T3E, HPUX 11,
9019 [Ralf S. Engelschall, Beckmann <beckman@acl.lanl.gov>]
9021 *) Updated the README file.
9022 [Ralf S. Engelschall]
9024 *) Added various .cvsignore files in the CVS repository subdirs
9025 to make a "cvs update" really silent.
9026 [Ralf S. Engelschall]
9028 *) Recompiled the error-definition header files and added
9029 missing symbols to the Win32 linker tables.
9030 [Ralf S. Engelschall]
9032 *) Cleaned up the top-level documents;
9033 o new files: CHANGES and LICENSE
9034 o merged VERSION, HISTORY* and README* files a CHANGES.SSLeay
9035 o merged COPYRIGHT into LICENSE
9036 o removed obsolete TODO file
9037 o renamed MICROSOFT to INSTALL.W32
9038 [Ralf S. Engelschall]
9040 *) Removed dummy files from the 0.9.1b source tree:
9041 crypto/asn1/x crypto/bio/cd crypto/bio/fg crypto/bio/grep crypto/bio/vi
9042 crypto/bn/asm/......add.c crypto/bn/asm/a.out crypto/dsa/f crypto/md5/f
9043 crypto/pem/gmon.out crypto/perlasm/f crypto/pkcs7/build crypto/rsa/f
9044 crypto/sha/asm/f crypto/threads/f ms/zzz ssl/f ssl/f.mak test/f
9045 util/f.mak util/pl/f util/pl/f.mak crypto/bf/bf_locl.old apps/f
9046 [Ralf S. Engelschall]
9048 *) Added various platform portability fixes.
9051 *) The Genesis of the OpenSSL rpject:
9052 We start with the latest (unreleased) SSLeay version 0.9.1b which Eric A.
9053 Young and Tim J. Hudson created while they were working for C2Net until
9055 [The OpenSSL Project]
9058 Changes between 0.9.0b and 0.9.1b [not released]
9060 *) Updated a few CA certificates under certs/
9063 *) Changed some BIGNUM api stuff.
9066 *) Various platform ports: OpenBSD, Ultrix, IRIX 64bit, NetBSD,
9067 DGUX x86, Linux Alpha, etc.
9070 *) New COMP library [crypto/comp/] for SSL Record Layer Compression:
9071 RLE (dummy implemented) and ZLIB (really implemented when ZLIB is
9075 *) Add -strparse option to asn1pars program which parses nested
9077 [Dr Stephen Henson <shenson@bigfoot.com>]
9079 *) Added "oid_file" to ssleay.cnf for "ca" and "req" programs.
9082 *) DSA fix for "ca" program.
9085 *) Added "-genkey" option to "dsaparam" program.
9088 *) Added RIPE MD160 (rmd160) message digest.
9091 *) Added -a (all) option to "ssleay version" command.
9094 *) Added PLATFORM define which is the id given to Configure.
9097 *) Added MemCheck_XXXX functions to crypto/mem.c for memory checking.
9100 *) Extended the ASN.1 parser routines.
9103 *) Extended BIO routines to support REUSEADDR, seek, tell, etc.
9106 *) Added a BN_CTX to the BN library.
9109 *) Fixed the weak key values in DES library
9112 *) Changed API in EVP library for cipher aliases.
9115 *) Added support for RC2/64bit cipher.
9118 *) Converted the lhash library to the crypto/mem.c functions.
9121 *) Added more recognized ASN.1 object ids.
9124 *) Added more RSA padding checks for SSL/TLS.
9127 *) Added BIO proxy/filter functionality.
9130 *) Added extra_certs to SSL_CTX which can be used
9131 send extra CA certificates to the client in the CA cert chain sending
9132 process. It can be configured with SSL_CTX_add_extra_chain_cert().
9135 *) Now Fortezza is denied in the authentication phase because
9136 this is key exchange mechanism is not supported by SSLeay at all.
9139 *) Additional PKCS1 checks.
9142 *) Support the string "TLSv1" for all TLS v1 ciphers.
9145 *) Added function SSL_get_ex_data_X509_STORE_CTX_idx() which gives the
9146 ex_data index of the SSL context in the X509_STORE_CTX ex_data.
9149 *) Fixed a few memory leaks.
9152 *) Fixed various code and comment typos.
9155 *) A minor bug in ssl/s3_clnt.c where there would always be 4 0
9156 bytes sent in the client random.
9157 [Edward Bishop <ebishop@spyglass.com>]
projects / openssl.git / blob