5 Changes between 0.9.8k and 1.0 [xx XXX xxxx]
7 *) Delete MD2 from algorithm tables. This follows the recommendation in
8 several standards that it is not used in new applications due to
9 several cryptographic weaknesses. The algorithm is also disabled in
10 the default configuration.
13 *) In BIO_pop() and BIO_push() use the ctrl argument (which was NULL) to
14 indicate the initial BIO being pushed or popped. This makes it possible
15 to determine whether the BIO is the one explicitly called or as a result
16 of the ctrl being passed down the chain. Fix BIO_pop() and SSL BIOs so
17 it handles reference counts correctly and doesn't zero out the I/O bio
18 when it is not being explicitly popped. WARNING: applications which
19 included workarounds for the old buggy behaviour will need to be modified
20 or they could free up already freed BIOs.
23 *) Rename uni2asc and asc2uni functions to OPENSSL_uni2asc and
24 OPENSSL_asc2uni the original names were too generic and cause name
26 [Guenter <lists@gknw.net>]
28 *) Add ECDHE and PSK support to DTLS.
29 [Michael Tuexen <tuexen@fh-muenster.de>]
31 *) Add CHECKED_STACK_OF macro to safestack.h, otherwise safestack can't
35 *) Add "missing" function EVP_MD_flags() (without this the only way to
36 retrieve a digest flags is by accessing the structure directly. Update
37 EVP_MD_do_all*() and EVP_CIPHER_do_all*() to include the name a digest
38 or cipher is registered as in the "from" argument. Print out all
39 registered digests in the dgst usage message instead of manually
40 attempting to work them out.
43 *) If no SSLv2 ciphers are used don't use an SSLv2 compatible client hello:
44 this allows the use of compression and extensions. Change default cipher
45 string to remove SSLv2 ciphersuites. This effectively avoids ancient SSLv2
46 by default unless an application cipher string requests it.
49 *) Alter match criteria in PKCS12_parse(). It used to try to use local
50 key ids to find matching certificates and keys but some PKCS#12 files
51 don't follow the (somewhat unwritten) rules and this strategy fails.
52 Now just gather all certificates together and the first private key
53 then look for the first certificate that matches the key.
56 *) Support use of registered digest and cipher names for dgst and cipher
57 commands instead of having to add each one as a special case. So now
64 openssl dgst -sha256 foo
66 and this works for ENGINE based algorithms too.
70 *) Update Gost ENGINE to support parameter files.
71 [Victor B. Wagner <vitus@cryptocom.ru>]
73 *) Support GeneralizedTime in ca utility.
74 [Oliver Martin <oliver@volatilevoid.net>, Steve Henson]
76 *) Enhance the hash format used for certificate directory links. The new
77 form uses the canonical encoding (meaning equivalent names will work
78 even if they aren't identical) and uses SHA1 instead of MD5. This form
79 is incompatible with the older format and as a result c_rehash should
80 be used to rebuild symbolic links.
83 *) Make PKCS#8 the default write format for private keys, replacing the
84 traditional format. This form is standardised, more secure and doesn't
85 include an implicit MD5 dependency.
88 *) Add a $gcc_devteam_warn option to Configure. The idea is that any code
89 committed to OpenSSL should pass this lot as a minimum.
92 *) Add session ticket override functionality for use by EAP-FAST.
93 [Jouni Malinen <j@w1.fi>]
95 *) Modify HMAC functions to return a value. Since these can be implemented
96 in an ENGINE errors can occur.
99 *) Type-checked OBJ_bsearch_ex.
102 *) Type-checked OBJ_bsearch. Also some constification necessitated
103 by type-checking. Still to come: TXT_DB, bsearch(?),
104 OBJ_bsearch_ex, qsort, CRYPTO_EX_DATA, ASN1_VALUE, ASN1_STRING,
108 *) New function OPENSSL_gmtime_adj() to add a specific number of days and
109 seconds to a tm structure directly, instead of going through OS
110 specific date routines. This avoids any issues with OS routines such
111 as the year 2038 bug. New *_adj() functions for ASN1 time structures
112 and X509_time_adj_ex() to cover the extended range. The existing
113 X509_time_adj() is still usable and will no longer have any date issues.
116 *) Delta CRL support. New use deltas option which will attempt to locate
117 and search any appropriate delta CRLs available.
119 This work was sponsored by Google.
122 *) Support for CRLs partitioned by reason code. Reorganise CRL processing
123 code and add additional score elements. Validate alternate CRL paths
124 as part of the CRL checking and indicate a new error "CRL path validation
125 error" in this case. Applications wanting additional details can use
126 the verify callback and check the new "parent" field. If this is not
127 NULL CRL path validation is taking place. Existing applications wont
128 see this because it requires extended CRL support which is off by
131 This work was sponsored by Google.
134 *) Support for freshest CRL extension.
136 This work was sponsored by Google.
139 *) Initial indirect CRL support. Currently only supported in the CRLs
140 passed directly and not via lookup. Process certificate issuer
141 CRL entry extension and lookup CRL entries by bother issuer name
142 and serial number. Check and process CRL issuer entry in IDP extension.
144 This work was sponsored by Google.
147 *) Add support for distinct certificate and CRL paths. The CRL issuer
148 certificate is validated separately in this case. Only enabled if
149 an extended CRL support flag is set: this flag will enable additional
150 CRL functionality in future.
152 This work was sponsored by Google.
155 *) Add support for policy mappings extension.
157 This work was sponsored by Google.
160 *) Fixes to pathlength constraint, self issued certificate handling,
161 policy processing to align with RFC3280 and PKITS tests.
163 This work was sponsored by Google.
166 *) Support for name constraints certificate extension. DN, email, DNS
167 and URI types are currently supported.
169 This work was sponsored by Google.
172 *) To cater for systems that provide a pointer-based thread ID rather
173 than numeric, deprecate the current numeric thread ID mechanism and
174 replace it with a structure and associated callback type. This
175 mechanism allows a numeric "hash" to be extracted from a thread ID in
176 either case, and on platforms where pointers are larger than 'long',
177 mixing is done to help ensure the numeric 'hash' is usable even if it
178 can't be guaranteed unique. The default mechanism is to use "&errno"
179 as a pointer-based thread ID to distinguish between threads.
181 Applications that want to provide their own thread IDs should now use
182 CRYPTO_THREADID_set_callback() to register a callback that will call
183 either CRYPTO_THREADID_set_numeric() or CRYPTO_THREADID_set_pointer().
185 Note that ERR_remove_state() is now deprecated, because it is tied
186 to the assumption that thread IDs are numeric. ERR_remove_state(0)
187 to free the current thread's error state should be replaced by
188 ERR_remove_thread_state(NULL).
190 (This new approach replaces the functions CRYPTO_set_idptr_callback(),
191 CRYPTO_get_idptr_callback(), and CRYPTO_thread_idptr() that existed in
192 OpenSSL 0.9.9-dev between June 2006 and August 2008. Also, if an
193 application was previously providing a numeric thread callback that
194 was inappropriate for distinguishing threads, then uniqueness might
195 have been obtained with &errno that happened immediately in the
196 intermediate development versions of OpenSSL; this is no longer the
197 case, the numeric thread callback will now override the automatic use
199 [Geoff Thorpe, with help from Bodo Moeller]
201 *) Initial support for different CRL issuing certificates. This covers a
202 simple case where the self issued certificates in the chain exist and
203 the real CRL issuer is higher in the existing chain.
205 This work was sponsored by Google.
208 *) Removed effectively defunct crypto/store from the build.
211 *) Revamp of STACK to provide stronger type-checking. Still to come:
212 TXT_DB, bsearch(?), OBJ_bsearch, qsort, CRYPTO_EX_DATA, ASN1_VALUE,
213 ASN1_STRING, CONF_VALUE.
216 *) Add a new SSL_MODE_RELEASE_BUFFERS mode flag to release unused buffer
217 RAM on SSL connections. This option can save about 34k per idle SSL.
220 *) Revamp of LHASH to provide stronger type-checking. Still to come:
221 STACK, TXT_DB, bsearch, qsort.
224 *) Initial support for Cryptographic Message Syntax (aka CMS) based
225 on RFC3850, RFC3851 and RFC3852. New cms directory and cms utility,
226 support for data, signedData, compressedData, digestedData and
227 encryptedData, envelopedData types included. Scripts to check against
228 RFC4134 examples draft and interop and consistency checks of many
229 content types and variants.
232 *) Add options to enc utility to support use of zlib compression BIO.
235 *) Extend mk1mf to support importing of options and assembly language
236 files from Configure script, currently only included in VC-WIN32.
237 The assembly language rules can now optionally generate the source
238 files from the associated perl scripts.
241 *) Implement remaining functionality needed to support GOST ciphersuites.
242 Interop testing has been performed using CryptoPro implementations.
243 [Victor B. Wagner <vitus@cryptocom.ru>]
245 *) s390x assembler pack.
248 *) ARMv4 assembler pack. ARMv4 refers to v4 and later ISA, not CPU
252 *) Implement Opaque PRF Input TLS extension as specified in
253 draft-rescorla-tls-opaque-prf-input-00.txt. Since this is not an
254 official specification yet and no extension type assignment by
255 IANA exists, this extension (for now) will have to be explicitly
256 enabled when building OpenSSL by providing the extension number
257 to use. For example, specify an option
259 -DTLSEXT_TYPE_opaque_prf_input=0x9527
261 to the "config" or "Configure" script to enable the extension,
262 assuming extension number 0x9527 (which is a completely arbitrary
263 and unofficial assignment based on the MD5 hash of the Internet
264 Draft). Note that by doing so, you potentially lose
265 interoperability with other TLS implementations since these might
266 be using the same extension number for other purposes.
268 SSL_set_tlsext_opaque_prf_input(ssl, src, len) is used to set the
269 opaque PRF input value to use in the handshake. This will create
270 an interal copy of the length-'len' string at 'src', and will
271 return non-zero for success.
273 To get more control and flexibility, provide a callback function
276 SSL_CTX_set_tlsext_opaque_prf_input_callback(ctx, cb)
277 SSL_CTX_set_tlsext_opaque_prf_input_callback_arg(ctx, arg)
281 int (*cb)(SSL *, void *peerinput, size_t len, void *arg);
284 Callback function 'cb' will be called in handshakes, and is
285 expected to use SSL_set_tlsext_opaque_prf_input() as appropriate.
286 Argument 'arg' is for application purposes (the value as given to
287 SSL_CTX_set_tlsext_opaque_prf_input_callback_arg() will directly
288 be provided to the callback function). The callback function
289 has to return non-zero to report success: usually 1 to use opaque
290 PRF input just if possible, or 2 to enforce use of the opaque PRF
291 input. In the latter case, the library will abort the handshake
292 if opaque PRF input is not successfully negotiated.
294 Arguments 'peerinput' and 'len' given to the callback function
295 will always be NULL and 0 in the case of a client. A server will
296 see the client's opaque PRF input through these variables if
297 available (NULL and 0 otherwise). Note that if the server
298 provides an opaque PRF input, the length must be the same as the
299 length of the client's opaque PRF input.
301 Note that the callback function will only be called when creating
302 a new session (session resumption can resume whatever was
303 previously negotiated), and will not be called in SSL 2.0
304 handshakes; thus, SSL_CTX_set_options(ctx, SSL_OP_NO_SSLv2) or
305 SSL_set_options(ssl, SSL_OP_NO_SSLv2) is especially recommended
306 for applications that need to enforce opaque PRF input.
310 *) Update ssl code to support digests other than SHA1+MD5 for handshake
313 [Victor B. Wagner <vitus@cryptocom.ru>]
315 *) Add RFC4507 support to OpenSSL. This includes the corrections in
316 RFC4507bis. The encrypted ticket format is an encrypted encoded
317 SSL_SESSION structure, that way new session features are automatically
320 If a client application caches session in an SSL_SESSION structure
321 support is transparent because tickets are now stored in the encoded
324 The SSL_CTX structure automatically generates keys for ticket
325 protection in servers so again support should be possible
326 with no application modification.
328 If a client or server wishes to disable RFC4507 support then the option
329 SSL_OP_NO_TICKET can be set.
331 Add a TLS extension debugging callback to allow the contents of any client
332 or server extensions to be examined.
334 This work was sponsored by Google.
337 *) Final changes to avoid use of pointer pointer casts in OpenSSL.
338 OpenSSL should now compile cleanly on gcc 4.2
339 [Peter Hartley <pdh@utter.chaos.org.uk>, Steve Henson]
341 *) Update SSL library to use new EVP_PKEY MAC API. Include generic MAC
342 support including streaming MAC support: this is required for GOST
344 [Victor B. Wagner <vitus@cryptocom.ru>, Steve Henson]
346 *) Add option -stream to use PKCS#7 streaming in smime utility. New
347 function i2d_PKCS7_bio_stream() and PEM_write_PKCS7_bio_stream()
348 to output in BER and PEM format.
351 *) Experimental support for use of HMAC via EVP_PKEY interface. This
352 allows HMAC to be handled via the EVP_DigestSign*() interface. The
353 EVP_PKEY "key" in this case is the HMAC key, potentially allowing
354 ENGINE support for HMAC keys which are unextractable. New -mac and
355 -macopt options to dgst utility.
358 *) New option -sigopt to dgst utility. Update dgst to use
359 EVP_Digest{Sign,Verify}*. These two changes make it possible to use
360 alternative signing paramaters such as X9.31 or PSS in the dgst
364 *) Change ssl_cipher_apply_rule(), the internal function that does
365 the work each time a ciphersuite string requests enabling
366 ("foo+bar"), moving ("+foo+bar"), disabling ("-foo+bar", or
367 removing ("!foo+bar") a class of ciphersuites: Now it maintains
368 the order of disabled ciphersuites such that those ciphersuites
369 that most recently went from enabled to disabled not only stay
370 in order with respect to each other, but also have higher priority
371 than other disabled ciphersuites the next time ciphersuites are
374 This means that you can now say, e.g., "PSK:-PSK:HIGH" to enable
375 the same ciphersuites as with "HIGH" alone, but in a specific
376 order where the PSK ciphersuites come first (since they are the
377 most recently disabled ciphersuites when "HIGH" is parsed).
379 Also, change ssl_create_cipher_list() (using this new
380 funcionality) such that between otherwise identical
381 cihpersuites, ephemeral ECDH is preferred over ephemeral DH in
385 *) Change ssl_create_cipher_list() so that it automatically
386 arranges the ciphersuites in reasonable order before starting
387 to process the rule string. Thus, the definition for "DEFAULT"
388 (SSL_DEFAULT_CIPHER_LIST) now is just "ALL:!aNULL:!eNULL", but
389 remains equivalent to "AES:ALL:!aNULL:!eNULL:+aECDH:+kRSA:+RC4:@STRENGTH".
390 This makes it much easier to arrive at a reasonable default order
391 in applications for which anonymous ciphers are OK (meaning
392 that you can't actually use DEFAULT).
393 [Bodo Moeller; suggested by Victor Duchovni]
395 *) Split the SSL/TLS algorithm mask (as used for ciphersuite string
396 processing) into multiple integers instead of setting
397 "SSL_MKEY_MASK" bits, "SSL_AUTH_MASK" bits, "SSL_ENC_MASK",
398 "SSL_MAC_MASK", and "SSL_SSL_MASK" bits all in a single integer.
399 (These masks as well as the individual bit definitions are hidden
400 away into the non-exported interface ssl/ssl_locl.h, so this
401 change to the definition of the SSL_CIPHER structure shouldn't
402 affect applications.) This give us more bits for each of these
403 categories, so there is no longer a need to coagulate AES128 and
404 AES256 into a single algorithm bit, and to coagulate Camellia128
405 and Camellia256 into a single algorithm bit, which has led to all
408 Thus, among other things, the kludge introduced in 0.9.7m and
409 0.9.8e for masking out AES256 independently of AES128 or masking
410 out Camellia256 independently of AES256 is not needed here in 0.9.9.
412 With the change, we also introduce new ciphersuite aliases that
413 so far were missing: "AES128", "AES256", "CAMELLIA128", and
417 *) Add support for dsa-with-SHA224 and dsa-with-SHA256.
418 Use the leftmost N bytes of the signature input if the input is
419 larger than the prime q (with N being the size in bytes of q).
422 *) Very *very* experimental PKCS#7 streaming encoder support. Nothing uses
423 it yet and it is largely untested.
426 *) Add support for the ecdsa-with-SHA224/256/384/512 signature types.
429 *) Initial incomplete changes to avoid need for function casts in OpenSSL
430 some compilers (gcc 4.2 and later) reject their use. Safestack is
431 reimplemented. Update ASN1 to avoid use of legacy functions.
434 *) Win32/64 targets are linked with Winsock2.
437 *) Add an X509_CRL_METHOD structure to allow CRL processing to be redirected
438 to external functions. This can be used to increase CRL handling
439 efficiency especially when CRLs are very large by (for example) storing
440 the CRL revoked certificates in a database.
443 *) Overhaul of by_dir code. Add support for dynamic loading of CRLs so
444 new CRLs added to a directory can be used. New command line option
445 -verify_return_error to s_client and s_server. This causes real errors
446 to be returned by the verify callback instead of carrying on no matter
447 what. This reflects the way a "real world" verify callback would behave.
450 *) GOST engine, supporting several GOST algorithms and public key formats.
451 Kindly donated by Cryptocom.
454 *) Partial support for Issuing Distribution Point CRL extension. CRLs
455 partitioned by DP are handled but no indirect CRL or reason partitioning
456 (yet). Complete overhaul of CRL handling: now the most suitable CRL is
457 selected via a scoring technique which handles IDP and AKID in CRLs.
460 *) New X509_STORE_CTX callbacks lookup_crls() and lookup_certs() which
461 will ultimately be used for all verify operations: this will remove the
462 X509_STORE dependency on certificate verification and allow alternative
463 lookup methods. X509_STORE based implementations of these two callbacks.
466 *) Allow multiple CRLs to exist in an X509_STORE with matching issuer names.
467 Modify get_crl() to find a valid (unexpired) CRL if possible.
470 *) New function X509_CRL_match() to check if two CRLs are identical. Normally
471 this would be called X509_CRL_cmp() but that name is already used by
472 a function that just compares CRL issuer names. Cache several CRL
473 extensions in X509_CRL structure and cache CRLDP in X509.
476 *) Store a "canonical" representation of X509_NAME structure (ASN1 Name)
477 this maps equivalent X509_NAME structures into a consistent structure.
478 Name comparison can then be performed rapidly using memcmp().
481 *) Non-blocking OCSP request processing. Add -timeout option to ocsp
485 *) Allow digests to supply their own micalg string for S/MIME type using
486 the ctrl EVP_MD_CTRL_MICALG.
489 *) During PKCS7 signing pass the PKCS7 SignerInfo structure to the
490 EVP_PKEY_METHOD before and after signing via the EVP_PKEY_CTRL_PKCS7_SIGN
491 ctrl. It can then customise the structure before and/or after signing
495 *) New function OBJ_add_sigid() to allow application defined signature OIDs
496 to be added to OpenSSLs internal tables. New function OBJ_sigid_free()
497 to free up any added signature OIDs.
500 *) New functions EVP_CIPHER_do_all(), EVP_CIPHER_do_all_sorted(),
501 EVP_MD_do_all() and EVP_MD_do_all_sorted() to enumerate internal
502 digest and cipher tables. New options added to openssl utility:
503 list-message-digest-algorithms and list-cipher-algorithms.
506 *) Change the array representation of binary polynomials: the list
507 of degrees of non-zero coefficients is now terminated with -1.
508 Previously it was terminated with 0, which was also part of the
509 value; thus, the array representation was not applicable to
510 polynomials where t^0 has coefficient zero. This change makes
511 the array representation useful in a more general context.
514 *) Various modifications and fixes to SSL/TLS cipher string
515 handling. For ECC, the code now distinguishes between fixed ECDH
516 with RSA certificates on the one hand and with ECDSA certificates
517 on the other hand, since these are separate ciphersuites. The
518 unused code for Fortezza ciphersuites has been removed.
520 For consistency with EDH, ephemeral ECDH is now called "EECDH"
521 (not "ECDHE"). For consistency with the code for DH
522 certificates, use of ECDH certificates is now considered ECDH
523 authentication, not RSA or ECDSA authentication (the latter is
524 merely the CA's signing algorithm and not actively used in the
527 The temporary ciphersuite alias "ECCdraft" is no longer
528 available, and ECC ciphersuites are no longer excluded from "ALL"
529 and "DEFAULT". The following aliases now exist for RFC 4492
530 ciphersuites, most of these by analogy with the DH case:
532 kECDHr - ECDH cert, signed with RSA
533 kECDHe - ECDH cert, signed with ECDSA
534 kECDH - ECDH cert (signed with either RSA or ECDSA)
535 kEECDH - ephemeral ECDH
536 ECDH - ECDH cert or ephemeral ECDH
542 AECDH - anonymous ECDH
543 EECDH - non-anonymous ephemeral ECDH (equivalent to "kEECDH:-AECDH")
547 *) Add additional S/MIME capabilities for AES and GOST ciphers if supported.
548 Use correct micalg parameters depending on digest(s) in signed message.
551 *) Add engine support for EVP_PKEY_ASN1_METHOD. Add functions to process
552 an ENGINE asn1 method. Support ENGINE lookups in the ASN1 code.
555 *) Initial engine support for EVP_PKEY_METHOD. New functions to permit
556 an engine to register a method. Add ENGINE lookups for methods and
557 functional reference processing.
560 *) New functions EVP_Digest{Sign,Verify)*. These are enchance versions of
561 EVP_{Sign,Verify}* which allow an application to customise the signature
565 *) New -resign option to smime utility. This adds one or more signers
566 to an existing PKCS#7 signedData structure. Also -md option to use an
567 alternative message digest algorithm for signing.
570 *) Tidy up PKCS#7 routines and add new functions to make it easier to
571 create PKCS7 structures containing multiple signers. Update smime
572 application to support multiple signers.
575 *) New -macalg option to pkcs12 utility to allow setting of an alternative
579 *) Initial support for PKCS#5 v2.0 PRFs other than default SHA1 HMAC.
580 Reorganize PBE internals to lookup from a static table using NIDs,
581 add support for HMAC PBE OID translation. Add a EVP_CIPHER ctrl:
582 EVP_CTRL_PBE_PRF_NID this allows a cipher to specify an alternative
583 PRF which will be automatically used with PBES2.
586 *) Replace the algorithm specific calls to generate keys in "req" with the
590 *) Update PKCS#7 enveloped data routines to use new API. This is now
591 supported by any public key method supporting the encrypt operation. A
592 ctrl is added to allow the public key algorithm to examine or modify
593 the PKCS#7 RecipientInfo structure if it needs to: for RSA this is
597 *) Add a ctrl to asn1 method to allow a public key algorithm to express
598 a default digest type to use. In most cases this will be SHA1 but some
599 algorithms (such as GOST) need to specify an alternative digest. The
600 return value indicates how strong the prefernce is 1 means optional and
601 2 is mandatory (that is it is the only supported type). Modify
602 ASN1_item_sign() to accept a NULL digest argument to indicate it should
603 use the default md. Update openssl utilities to use the default digest
604 type for signing if it is not explicitly indicated.
607 *) Use OID cross reference table in ASN1_sign() and ASN1_verify(). New
608 EVP_MD flag EVP_MD_FLAG_PKEY_METHOD_SIGNATURE. This uses the relevant
609 signing method from the key type. This effectively removes the link
610 between digests and public key types.
613 *) Add an OID cross reference table and utility functions. Its purpose is to
614 translate between signature OIDs such as SHA1WithrsaEncryption and SHA1,
615 rsaEncryption. This will allow some of the algorithm specific hackery
616 needed to use the correct OID to be removed.
619 *) Remove algorithm specific dependencies when setting PKCS7_SIGNER_INFO
620 structures for PKCS7_sign(). They are now set up by the relevant public
624 *) Add provisional EC pkey method with support for ECDSA and ECDH.
627 *) Add support for key derivation (agreement) in the API, DH method and
631 *) Add DSA pkey method and DH pkey methods, extend DH ASN1 method to support
632 public and private key formats. As a side effect these add additional
633 command line functionality not previously available: DSA signatures can be
634 generated and verified using pkeyutl and DH key support and generation in
639 [Oliver Tappe <zooey@hirschkaefer.de>]
641 *) New make target "install_html_docs" installs HTML renditions of the
643 [Oliver Tappe <zooey@hirschkaefer.de>]
645 *) New utility "genpkey" this is analagous to "genrsa" etc except it can
646 generate keys for any algorithm. Extend and update EVP_PKEY_METHOD to
647 support key and parameter generation and add initial key generation
648 functionality for RSA.
651 *) Add functions for main EVP_PKEY_method operations. The undocumented
652 functions EVP_PKEY_{encrypt,decrypt} have been renamed to
653 EVP_PKEY_{encrypt,decrypt}_old.
656 *) Initial definitions for EVP_PKEY_METHOD. This will be a high level public
657 key API, doesn't do much yet.
660 *) New function EVP_PKEY_asn1_get0_info() to retrieve information about
661 public key algorithms. New option to openssl utility:
662 "list-public-key-algorithms" to print out info.
665 *) Implement the Supported Elliptic Curves Extension for
666 ECC ciphersuites from draft-ietf-tls-ecc-12.txt.
669 *) Don't free up OIDs in OBJ_cleanup() if they are in use by EVP_MD or
670 EVP_CIPHER structures to avoid later problems in EVP_cleanup().
673 *) New utilities pkey and pkeyparam. These are similar to algorithm specific
674 utilities such as rsa, dsa, dsaparam etc except they process any key
678 *) Transfer public key printing routines to EVP_PKEY_ASN1_METHOD. New
679 functions EVP_PKEY_print_public(), EVP_PKEY_print_private(),
680 EVP_PKEY_print_param() to print public key data from an EVP_PKEY
684 *) Initial support for pluggable public key ASN1.
685 De-spaghettify the public key ASN1 handling. Move public and private
686 key ASN1 handling to a new EVP_PKEY_ASN1_METHOD structure. Relocate
687 algorithm specific handling to a single module within the relevant
688 algorithm directory. Add functions to allow (near) opaque processing
689 of public and private key structures.
692 *) Implement the Supported Point Formats Extension for
693 ECC ciphersuites from draft-ietf-tls-ecc-12.txt.
696 *) Add initial support for RFC 4279 PSK TLS ciphersuites. Add members
697 for the psk identity [hint] and the psk callback functions to the
698 SSL_SESSION, SSL and SSL_CTX structure.
701 PSK-RC4-SHA, PSK-3DES-EDE-CBC-SHA, PSK-AES128-CBC-SHA,
705 SSL_CTX_use_psk_identity_hint
706 SSL_get_psk_identity_hint
708 SSL_use_psk_identity_hint
710 [Mika Kousa and Pasi Eronen of Nokia Corporation]
712 *) Add RFC 3161 compliant time stamp request creation, response generation
713 and response verification functionality.
714 [Zoltán Glózik <zglozik@opentsa.org>, The OpenTSA Project]
716 *) Add initial support for TLS extensions, specifically for the server_name
717 extension so far. The SSL_SESSION, SSL_CTX, and SSL data structures now
718 have new members for a host name. The SSL data structure has an
719 additional member SSL_CTX *initial_ctx so that new sessions can be
720 stored in that context to allow for session resumption, even after the
721 SSL has been switched to a new SSL_CTX in reaction to a client's
722 server_name extension.
724 New functions (subject to change):
727 SSL_get_servername_type()
730 New CTRL codes and macros (subject to change):
732 SSL_CTRL_SET_TLSEXT_SERVERNAME_CB
733 - SSL_CTX_set_tlsext_servername_callback()
734 SSL_CTRL_SET_TLSEXT_SERVERNAME_ARG
735 - SSL_CTX_set_tlsext_servername_arg()
736 SSL_CTRL_SET_TLSEXT_HOSTNAME - SSL_set_tlsext_host_name()
738 openssl s_client has a new '-servername ...' option.
740 openssl s_server has new options '-servername_host ...', '-cert2 ...',
741 '-key2 ...', '-servername_fatal' (subject to change). This allows
742 testing the HostName extension for a specific single host name ('-cert'
743 and '-key' remain fallbacks for handshakes without HostName
744 negotiation). If the unrecogninzed_name alert has to be sent, this by
745 default is a warning; it becomes fatal with the '-servername_fatal'
748 [Peter Sylvester, Remy Allais, Christophe Renou]
750 *) Whirlpool hash implementation is added.
753 *) BIGNUM code on 64-bit SPARCv9 targets is switched from bn(64,64) to
754 bn(64,32). Because of instruction set limitations it doesn't have
755 any negative impact on performance. This was done mostly in order
756 to make it possible to share assembler modules, such as bn_mul_mont
757 implementations, between 32- and 64-bit builds without hassle.
760 *) Move code previously exiled into file crypto/ec/ec2_smpt.c
761 to ec2_smpl.c, and no longer require the OPENSSL_EC_BIN_PT_COMP
765 *) New candidate for BIGNUM assembler implementation, bn_mul_mont,
766 dedicated Montgomery multiplication procedure, is introduced.
767 BN_MONT_CTX is modified to allow bn_mul_mont to reach for higher
768 "64-bit" performance on certain 32-bit targets.
771 *) New option SSL_OP_NO_COMP to disable use of compression selectively
772 in SSL structures. New SSL ctrl to set maximum send fragment size.
773 Save memory by seeting the I/O buffer sizes dynamically instead of
774 using the maximum available value.
777 *) New option -V for 'openssl ciphers'. This prints the ciphersuite code
778 in addition to the text details.
781 *) Very, very preliminary EXPERIMENTAL support for printing of general
782 ASN1 structures. This currently produces rather ugly output and doesn't
783 handle several customised structures at all.
786 *) Integrated support for PVK file format and some related formats such
787 as MS PUBLICKEYBLOB and PRIVATEKEYBLOB. Command line switches to support
788 these in the 'rsa' and 'dsa' utilities.
791 *) Support for PKCS#1 RSAPublicKey format on rsa utility command line.
794 *) Remove the ancient ASN1_METHOD code. This was only ever used in one
795 place for the (very old) "NETSCAPE" format certificates which are now
796 handled using new ASN1 code equivalents.
799 *) Let the TLSv1_method() etc. functions return a 'const' SSL_METHOD
800 pointer and make the SSL_METHOD parameter in SSL_CTX_new,
801 SSL_CTX_set_ssl_version and SSL_set_ssl_method 'const'.
804 *) Modify CRL distribution points extension code to print out previously
805 unsupported fields. Enhance extension setting code to allow setting of
809 *) Add print and set support for Issuing Distribution Point CRL extension.
812 *) Change 'Configure' script to enable Camellia by default.
815 Changes between 0.9.8k and 0.9.8l [xx XXX xxxx]
817 *) Add support for --libdir option and LIBDIR variable in makefiles. This
818 makes it possible to install openssl libraries in locations which
819 have names other than "lib", for example "/usr/lib64" which some
821 [Steve Henson, based on patch from Jeremy Utley]
823 *) Don't allow the use of leading 0x80 in OIDs. This is a violation of
824 X690 8.9.12 and can produce some misleading textual output of OIDs.
825 [Steve Henson, reported by Dan Kaminsky]
827 *) Add compression id to {d2i,i2d}_SSL_SESSION so it is correctly saved
831 *) Fix the server certificate chain building code to use X509_verify_cert(),
832 it used to have an ad-hoc builder which was unable to cope with anything
833 other than a simple chain.
834 [David Woodhouse <dwmw2@infradead.org>, Steve Henson]
836 *) Don't check self signed certificate signatures in X509_verify_cert()
837 by default (a flag can override this): it just wastes time without
838 adding any security. As a useful side effect self signed root CAs
839 with non-FIPS digests are now usable in FIPS mode.
842 *) In dtls1_process_out_of_seq_message() the check if the current message
843 is already buffered was missing. For every new message was memory
844 allocated, allowing an attacker to perform an denial of service attack
845 with sending out of seq handshake messages until there is no memory
846 left. Additionally every future messege was buffered, even if the
847 sequence number made no sense and would be part of another handshake.
848 So only messages with sequence numbers less than 10 in advance will be
850 [Robin Seggelmann, discovered by Daniel Mentz]
852 *) Records are buffered if they arrive with a future epoch to be
853 processed after finishing the corresponding handshake. There is
854 currently no limitation to this buffer allowing an attacker to perform
855 a DOS attack with sending records with future epochs until there is no
856 memory left. This patch adds the pqueue_size() function to detemine
857 the size of a buffer and limits the record buffer to 100 entries.
858 [Robin Seggelmann, discovered by Daniel Mentz]
860 *) Keep a copy of frag->msg_header.frag_len so it can be used after the
861 parent structure is freed.
864 *) Handle non-blocking I/O properly in SSL_shutdown() call.
865 [Darryl Miles <darryl-mailinglists@netbauds.net>]
868 [Ilya O. <vrghost@gmail.com>]
870 Changes between 0.9.8j and 0.9.8k [25 Mar 2009]
872 *) Don't set val to NULL when freeing up structures, it is freed up by
873 underlying code. If sizeof(void *) > sizeof(long) this can result in
874 zeroing past the valid field. (CVE-2009-0789)
875 [Paolo Ganci <Paolo.Ganci@AdNovum.CH>]
877 *) Fix bug where return value of CMS_SignerInfo_verify_content() was not
878 checked correctly. This would allow some invalid signed attributes to
879 appear to verify correctly. (CVE-2009-0591)
880 [Ivan Nestlerode <inestlerode@us.ibm.com>]
882 *) Reject UniversalString and BMPString types with invalid lengths. This
883 prevents a crash in ASN1_STRING_print_ex() which assumes the strings have
884 a legal length. (CVE-2009-0590)
887 *) Set S/MIME signing as the default purpose rather than setting it
888 unconditionally. This allows applications to override it at the store
892 *) Permit restricted recursion of ASN1 strings. This is needed in practice
893 to handle some structures.
896 *) Improve efficiency of mem_gets: don't search whole buffer each time
898 [Jeremy Shapiro <jnshapir@us.ibm.com>]
900 *) New -hex option for openssl rand.
903 *) Print out UTF8String and NumericString when parsing ASN1.
906 *) Support NumericString type for name components.
909 *) Allow CC in the environment to override the automatically chosen
910 compiler. Note that nothing is done to ensure flags work with the
914 Changes between 0.9.8i and 0.9.8j [07 Jan 2009]
916 *) Properly check EVP_VerifyFinal() and similar return values
918 [Ben Laurie, Bodo Moeller, Google Security Team]
920 *) Enable TLS extensions by default.
923 *) Allow the CHIL engine to be loaded, whether the application is
924 multithreaded or not. (This does not release the developer from the
925 obligation to set up the dynamic locking callbacks.)
926 [Sander Temme <sander@temme.net>]
928 *) Use correct exit code if there is an error in dgst command.
929 [Steve Henson; problem pointed out by Roland Dirlewanger]
931 *) Tweak Configure so that you need to say "experimental-jpake" to enable
932 JPAKE, and need to use -DOPENSSL_EXPERIMENTAL_JPAKE in applications.
935 *) Add experimental JPAKE support, including demo authentication in
936 s_client and s_server.
939 *) Set the comparison function in v3_addr_canonize().
940 [Rob Austein <sra@hactrn.net>]
942 *) Add support for XMPP STARTTLS in s_client.
943 [Philip Paeps <philip@freebsd.org>]
945 *) Change the server-side SSL_OP_NETSCAPE_REUSE_CIPHER_CHANGE_BUG behavior
946 to ensure that even with this option, only ciphersuites in the
947 server's preference list will be accepted. (Note that the option
948 applies only when resuming a session, so the earlier behavior was
949 just about the algorithm choice for symmetric cryptography.)
952 Changes between 0.9.8h and 0.9.8i [15 Sep 2008]
954 *) Fix a state transitition in s3_srvr.c and d1_srvr.c
955 (was using SSL3_ST_CW_CLNT_HELLO_B, should be ..._ST_SW_SRVR_...).
958 *) The fix in 0.9.8c that supposedly got rid of unsafe
959 double-checked locking was incomplete for RSA blinding,
960 addressing just one layer of what turns out to have been
961 doubly unsafe triple-checked locking.
963 So now fix this for real by retiring the MONT_HELPER macro
964 in crypto/rsa/rsa_eay.c.
966 [Bodo Moeller; problem pointed out by Marius Schilder]
968 *) Various precautionary measures:
970 - Avoid size_t integer overflow in HASH_UPDATE (md32_common.h).
972 - Avoid a buffer overflow in d2i_SSL_SESSION() (ssl_asn1.c).
973 (NB: This would require knowledge of the secret session ticket key
974 to exploit, in which case you'd be SOL either way.)
976 - Change bn_nist.c so that it will properly handle input BIGNUMs
977 outside the expected range.
979 - Enforce the 'num' check in BN_div() (bn_div.c) for non-BN_DEBUG
982 [Neel Mehta, Bodo Moeller]
984 *) Allow engines to be "soft loaded" - i.e. optionally don't die if
985 the load fails. Useful for distros.
986 [Ben Laurie and the FreeBSD team]
988 *) Add support for Local Machine Keyset attribute in PKCS#12 files.
991 *) Fix BN_GF2m_mod_arr() top-bit cleanup code.
994 *) Expand ENGINE to support engine supplied SSL client certificate functions.
996 This work was sponsored by Logica.
999 *) Add CryptoAPI ENGINE to support use of RSA and DSA keys held in Windows
1000 keystores. Support for SSL/TLS client authentication too.
1001 Not compiled unless enable-capieng specified to Configure.
1003 This work was sponsored by Logica.
1006 *) Fix bug in X509_ATTRIBUTE creation: dont set attribute using
1007 ASN1_TYPE_set1 if MBSTRING flag set. This bug would crash certain
1008 attribute creation routines such as certifcate requests and PKCS#12
1012 Changes between 0.9.8g and 0.9.8h [28 May 2008]
1014 *) Fix flaw if 'Server Key exchange message' is omitted from a TLS
1015 handshake which could lead to a cilent crash as found using the
1016 Codenomicon TLS test suite (CVE-2008-1672)
1017 [Steve Henson, Mark Cox]
1019 *) Fix double free in TLS server name extensions which could lead to
1020 a remote crash found by Codenomicon TLS test suite (CVE-2008-0891)
1023 *) Clear error queue in SSL_CTX_use_certificate_chain_file()
1025 Clear the error queue to ensure that error entries left from
1026 older function calls do not interfere with the correct operation.
1027 [Lutz Jaenicke, Erik de Castro Lopo]
1029 *) Remove root CA certificates of commercial CAs:
1031 The OpenSSL project does not recommend any specific CA and does not
1032 have any policy with respect to including or excluding any CA.
1033 Therefore it does not make any sense to ship an arbitrary selection
1034 of root CA certificates with the OpenSSL software.
1037 *) RSA OAEP patches to fix two separate invalid memory reads.
1038 The first one involves inputs when 'lzero' is greater than
1039 'SHA_DIGEST_LENGTH' (it would read about SHA_DIGEST_LENGTH bytes
1040 before the beginning of from). The second one involves inputs where
1041 the 'db' section contains nothing but zeroes (there is a one-byte
1042 invalid read after the end of 'db').
1043 [Ivan Nestlerode <inestlerode@us.ibm.com>]
1045 *) Partial backport from 0.9.9-dev:
1047 Introduce bn_mul_mont (dedicated Montgomery multiplication
1048 procedure) as a candidate for BIGNUM assembler implementation.
1049 While 0.9.9-dev uses assembler for various architectures, only
1050 x86_64 is available by default here in the 0.9.8 branch, and
1051 32-bit x86 is available through a compile-time setting.
1053 To try the 32-bit x86 assembler implementation, use Configure
1054 option "enable-montasm" (which exists only for this backport).
1056 As "enable-montasm" for 32-bit x86 disclaims code stability
1057 anyway, in this constellation we activate additional code
1058 backported from 0.9.9-dev for further performance improvements,
1059 namely BN_from_montgomery_word. (To enable this otherwise,
1060 e.g. x86_64, try "-DMONT_FROM_WORD___NON_DEFAULT_0_9_8_BUILD".)
1062 [Andy Polyakov (backport partially by Bodo Moeller)]
1064 *) Add TLS session ticket callback. This allows an application to set
1065 TLS ticket cipher and HMAC keys rather than relying on hardcoded fixed
1066 values. This is useful for key rollover for example where several key
1067 sets may exist with different names.
1070 *) Reverse ENGINE-internal logic for caching default ENGINE handles.
1071 This was broken until now in 0.9.8 releases, such that the only way
1072 a registered ENGINE could be used (assuming it initialises
1073 successfully on the host) was to explicitly set it as the default
1074 for the relevant algorithms. This is in contradiction with 0.9.7
1075 behaviour and the documentation. With this fix, when an ENGINE is
1076 registered into a given algorithm's table of implementations, the
1077 'uptodate' flag is reset so that auto-discovery will be used next
1078 time a new context for that algorithm attempts to select an
1080 [Ian Lister (tweaked by Geoff Thorpe)]
1082 *) Backport of CMS code to OpenSSL 0.9.8. This differs from the 0.9.9
1083 implemention in the following ways:
1085 Lack of EVP_PKEY_ASN1_METHOD means algorithm parameters have to be
1088 Lack of BER streaming support means one pass streaming processing is
1089 only supported if data is detached: setting the streaming flag is
1090 ignored for embedded content.
1092 CMS support is disabled by default and must be explicitly enabled
1093 with the enable-cms configuration option.
1096 *) Update the GMP engine glue to do direct copies between BIGNUM and
1097 mpz_t when openssl and GMP use the same limb size. Otherwise the
1098 existing "conversion via a text string export" trick is still used.
1099 [Paul Sheer <paulsheer@gmail.com>]
1101 *) Zlib compression BIO. This is a filter BIO which compressed and
1102 uncompresses any data passed through it.
1105 *) Add AES_wrap_key() and AES_unwrap_key() functions to implement
1106 RFC3394 compatible AES key wrapping.
1109 *) Add utility functions to handle ASN1 structures. ASN1_STRING_set0():
1110 sets string data without copying. X509_ALGOR_set0() and
1111 X509_ALGOR_get0(): set and retrieve X509_ALGOR (AlgorithmIdentifier)
1112 data. Attribute function X509at_get0_data_by_OBJ(): retrieves data
1113 from an X509_ATTRIBUTE structure optionally checking it occurs only
1114 once. ASN1_TYPE_set1(): set and ASN1_TYPE structure copying supplied
1118 *) Fix BN flag handling in RSA_eay_mod_exp() and BN_MONT_CTX_set()
1119 to get the expected BN_FLG_CONSTTIME behavior.
1120 [Bodo Moeller (Google)]
1124 - fixed wrong usage of ioctlsocket() when build for LIBC BSD sockets
1125 - fixed do_tests.pl to run the test suite with CLIB builds too (CLIB_OPT)
1126 - added some more tests to do_tests.pl
1127 - fixed RunningProcess usage so that it works with newer LIBC NDKs too
1128 - removed usage of BN_LLONG for CLIB builds to avoid runtime dependency
1129 - added new Configure targets netware-clib-bsdsock, netware-clib-gcc,
1130 netware-clib-bsdsock-gcc, netware-libc-bsdsock-gcc
1131 - various changes to netware.pl to enable gcc-cross builds on Win32
1133 - changed crypto/bio/b_sock.c to work with macro functions (CLIB BSD)
1134 - various changes to fix missing prototype warnings
1135 - fixed x86nasm.pl to create correct asm files for NASM COFF output
1136 - added AES, WHIRLPOOL and CPUID assembler code to build files
1137 - added missing AES assembler make rules to mk1mf.pl
1138 - fixed order of includes in apps/ocsp.c so that e_os.h settings apply
1139 [Guenter Knauf <eflash@gmx.net>]
1141 *) Implement certificate status request TLS extension defined in RFC3546.
1142 A client can set the appropriate parameters and receive the encoded
1143 OCSP response via a callback. A server can query the supplied parameters
1144 and set the encoded OCSP response in the callback. Add simplified examples
1145 to s_client and s_server.
1148 Changes between 0.9.8f and 0.9.8g [19 Oct 2007]
1150 *) Fix various bugs:
1151 + Binary incompatibility of ssl_ctx_st structure
1152 + DTLS interoperation with non-compliant servers
1153 + Don't call get_session_cb() without proposed session
1154 + Fix ia64 assembler code
1155 [Andy Polyakov, Steve Henson]
1157 Changes between 0.9.8e and 0.9.8f [11 Oct 2007]
1159 *) DTLS Handshake overhaul. There were longstanding issues with
1160 OpenSSL DTLS implementation, which were making it impossible for
1161 RFC 4347 compliant client to communicate with OpenSSL server.
1162 Unfortunately just fixing these incompatibilities would "cut off"
1163 pre-0.9.8f clients. To allow for hassle free upgrade post-0.9.8e
1164 server keeps tolerating non RFC compliant syntax. The opposite is
1165 not true, 0.9.8f client can not communicate with earlier server.
1166 This update even addresses CVE-2007-4995.
1169 *) Changes to avoid need for function casts in OpenSSL: some compilers
1170 (gcc 4.2 and later) reject their use.
1171 [Kurt Roeckx <kurt@roeckx.be>, Peter Hartley <pdh@utter.chaos.org.uk>,
1174 *) Add RFC4507 support to OpenSSL. This includes the corrections in
1175 RFC4507bis. The encrypted ticket format is an encrypted encoded
1176 SSL_SESSION structure, that way new session features are automatically
1179 If a client application caches session in an SSL_SESSION structure
1180 support is transparent because tickets are now stored in the encoded
1183 The SSL_CTX structure automatically generates keys for ticket
1184 protection in servers so again support should be possible
1185 with no application modification.
1187 If a client or server wishes to disable RFC4507 support then the option
1188 SSL_OP_NO_TICKET can be set.
1190 Add a TLS extension debugging callback to allow the contents of any client
1191 or server extensions to be examined.
1193 This work was sponsored by Google.
1196 *) Add initial support for TLS extensions, specifically for the server_name
1197 extension so far. The SSL_SESSION, SSL_CTX, and SSL data structures now
1198 have new members for a host name. The SSL data structure has an
1199 additional member SSL_CTX *initial_ctx so that new sessions can be
1200 stored in that context to allow for session resumption, even after the
1201 SSL has been switched to a new SSL_CTX in reaction to a client's
1202 server_name extension.
1204 New functions (subject to change):
1206 SSL_get_servername()
1207 SSL_get_servername_type()
1210 New CTRL codes and macros (subject to change):
1212 SSL_CTRL_SET_TLSEXT_SERVERNAME_CB
1213 - SSL_CTX_set_tlsext_servername_callback()
1214 SSL_CTRL_SET_TLSEXT_SERVERNAME_ARG
1215 - SSL_CTX_set_tlsext_servername_arg()
1216 SSL_CTRL_SET_TLSEXT_HOSTNAME - SSL_set_tlsext_host_name()
1218 openssl s_client has a new '-servername ...' option.
1220 openssl s_server has new options '-servername_host ...', '-cert2 ...',
1221 '-key2 ...', '-servername_fatal' (subject to change). This allows
1222 testing the HostName extension for a specific single host name ('-cert'
1223 and '-key' remain fallbacks for handshakes without HostName
1224 negotiation). If the unrecogninzed_name alert has to be sent, this by
1225 default is a warning; it becomes fatal with the '-servername_fatal'
1228 [Peter Sylvester, Remy Allais, Christophe Renou, Steve Henson]
1230 *) Add AES and SSE2 assembly language support to VC++ build.
1233 *) Mitigate attack on final subtraction in Montgomery reduction.
1236 *) Fix crypto/ec/ec_mult.c to work properly with scalars of value 0
1237 (which previously caused an internal error).
1240 *) Squeeze another 10% out of IGE mode when in != out.
1243 *) AES IGE mode speedup.
1244 [Dean Gaudet (Google)]
1246 *) Add the Korean symmetric 128-bit cipher SEED (see
1247 http://www.kisa.or.kr/kisa/seed/jsp/seed_eng.jsp) and
1248 add SEED ciphersuites from RFC 4162:
1250 TLS_RSA_WITH_SEED_CBC_SHA = "SEED-SHA"
1251 TLS_DHE_DSS_WITH_SEED_CBC_SHA = "DHE-DSS-SEED-SHA"
1252 TLS_DHE_RSA_WITH_SEED_CBC_SHA = "DHE-RSA-SEED-SHA"
1253 TLS_DH_anon_WITH_SEED_CBC_SHA = "ADH-SEED-SHA"
1255 To minimize changes between patchlevels in the OpenSSL 0.9.8
1256 series, SEED remains excluded from compilation unless OpenSSL
1257 is configured with 'enable-seed'.
1258 [KISA, Bodo Moeller]
1260 *) Mitigate branch prediction attacks, which can be practical if a
1261 single processor is shared, allowing a spy process to extract
1262 information. For detailed background information, see
1263 http://eprint.iacr.org/2007/039 (O. Aciicmez, S. Gueron,
1264 J.-P. Seifert, "New Branch Prediction Vulnerabilities in OpenSSL
1265 and Necessary Software Countermeasures"). The core of the change
1266 are new versions BN_div_no_branch() and
1267 BN_mod_inverse_no_branch() of BN_div() and BN_mod_inverse(),
1268 respectively, which are slower, but avoid the security-relevant
1269 conditional branches. These are automatically called by BN_div()
1270 and BN_mod_inverse() if the flag BN_FLG_CONSTTIME is set for one
1271 of the input BIGNUMs. Also, BN_is_bit_set() has been changed to
1272 remove a conditional branch.
1274 BN_FLG_CONSTTIME is the new name for the previous
1275 BN_FLG_EXP_CONSTTIME flag, since it now affects more than just
1276 modular exponentiation. (Since OpenSSL 0.9.7h, setting this flag
1277 in the exponent causes BN_mod_exp_mont() to use the alternative
1278 implementation in BN_mod_exp_mont_consttime().) The old name
1279 remains as a deprecated alias.
1281 Similary, RSA_FLAG_NO_EXP_CONSTTIME is replaced by a more general
1282 RSA_FLAG_NO_CONSTTIME flag since the RSA implementation now uses
1283 constant-time implementations for more than just exponentiation.
1284 Here too the old name is kept as a deprecated alias.
1286 BN_BLINDING_new() will now use BN_dup() for the modulus so that
1287 the BN_BLINDING structure gets an independent copy of the
1288 modulus. This means that the previous "BIGNUM *m" argument to
1289 BN_BLINDING_new() and to BN_BLINDING_create_param() now
1290 essentially becomes "const BIGNUM *m", although we can't actually
1291 change this in the header file before 0.9.9. It allows
1292 RSA_setup_blinding() to use BN_with_flags() on the modulus to
1293 enable BN_FLG_CONSTTIME.
1295 [Matthew D Wood (Intel Corp)]
1297 *) In the SSL/TLS server implementation, be strict about session ID
1298 context matching (which matters if an application uses a single
1299 external cache for different purposes). Previously,
1300 out-of-context reuse was forbidden only if SSL_VERIFY_PEER was
1301 set. This did ensure strict client verification, but meant that,
1302 with applications using a single external cache for quite
1303 different requirements, clients could circumvent ciphersuite
1304 restrictions for a given session ID context by starting a session
1305 in a different context.
1308 *) Include "!eNULL" in SSL_DEFAULT_CIPHER_LIST to make sure that
1309 a ciphersuite string such as "DEFAULT:RSA" cannot enable
1310 authentication-only ciphersuites.
1313 *) Update the SSL_get_shared_ciphers() fix CVE-2006-3738 which was
1314 not complete and could lead to a possible single byte overflow
1315 (CVE-2007-5135) [Ben Laurie]
1317 Changes between 0.9.8d and 0.9.8e [23 Feb 2007]
1319 *) Since AES128 and AES256 (and similarly Camellia128 and
1320 Camellia256) share a single mask bit in the logic of
1321 ssl/ssl_ciph.c, the code for masking out disabled ciphers needs a
1322 kludge to work properly if AES128 is available and AES256 isn't
1323 (or if Camellia128 is available and Camellia256 isn't).
1326 *) Fix the BIT STRING encoding generated by crypto/ec/ec_asn1.c
1327 (within i2d_ECPrivateKey, i2d_ECPKParameters, i2d_ECParameters):
1328 When a point or a seed is encoded in a BIT STRING, we need to
1329 prevent the removal of trailing zero bits to get the proper DER
1330 encoding. (By default, crypto/asn1/a_bitstr.c assumes the case
1331 of a NamedBitList, for which trailing 0 bits need to be removed.)
1334 *) Have SSL/TLS server implementation tolerate "mismatched" record
1335 protocol version while receiving ClientHello even if the
1336 ClientHello is fragmented. (The server can't insist on the
1337 particular protocol version it has chosen before the ServerHello
1338 message has informed the client about his choice.)
1341 *) Add RFC 3779 support.
1342 [Rob Austein for ARIN, Ben Laurie]
1344 *) Load error codes if they are not already present instead of using a
1345 static variable. This allows them to be cleanly unloaded and reloaded.
1346 Improve header file function name parsing.
1349 *) extend SMTP and IMAP protocol emulation in s_client to use EHLO
1350 or CAPABILITY handshake as required by RFCs.
1353 Changes between 0.9.8c and 0.9.8d [28 Sep 2006]
1355 *) Introduce limits to prevent malicious keys being able to
1356 cause a denial of service. (CVE-2006-2940)
1357 [Steve Henson, Bodo Moeller]
1359 *) Fix ASN.1 parsing of certain invalid structures that can result
1360 in a denial of service. (CVE-2006-2937) [Steve Henson]
1362 *) Fix buffer overflow in SSL_get_shared_ciphers() function.
1363 (CVE-2006-3738) [Tavis Ormandy and Will Drewry, Google Security Team]
1365 *) Fix SSL client code which could crash if connecting to a
1366 malicious SSLv2 server. (CVE-2006-4343)
1367 [Tavis Ormandy and Will Drewry, Google Security Team]
1369 *) Since 0.9.8b, ciphersuite strings naming explicit ciphersuites
1370 match only those. Before that, "AES256-SHA" would be interpreted
1371 as a pattern and match "AES128-SHA" too (since AES128-SHA got
1372 the same strength classification in 0.9.7h) as we currently only
1373 have a single AES bit in the ciphersuite description bitmap.
1374 That change, however, also applied to ciphersuite strings such as
1375 "RC4-MD5" that intentionally matched multiple ciphersuites --
1376 namely, SSL 2.0 ciphersuites in addition to the more common ones
1377 from SSL 3.0/TLS 1.0.
1379 So we change the selection algorithm again: Naming an explicit
1380 ciphersuite selects this one ciphersuite, and any other similar
1381 ciphersuite (same bitmap) from *other* protocol versions.
1382 Thus, "RC4-MD5" again will properly select both the SSL 2.0
1383 ciphersuite and the SSL 3.0/TLS 1.0 ciphersuite.
1385 Since SSL 2.0 does not have any ciphersuites for which the
1386 128/256 bit distinction would be relevant, this works for now.
1387 The proper fix will be to use different bits for AES128 and
1388 AES256, which would have avoided the problems from the beginning;
1389 however, bits are scarce, so we can only do this in a new release
1390 (not just a patchlevel) when we can change the SSL_CIPHER
1391 definition to split the single 'unsigned long mask' bitmap into
1392 multiple values to extend the available space.
1396 Changes between 0.9.8b and 0.9.8c [05 Sep 2006]
1398 *) Avoid PKCS #1 v1.5 signature attack discovered by Daniel Bleichenbacher
1399 (CVE-2006-4339) [Ben Laurie and Google Security Team]
1401 *) Add AES IGE and biIGE modes.
1404 *) Change the Unix randomness entropy gathering to use poll() when
1405 possible instead of select(), since the latter has some
1406 undesirable limitations.
1407 [Darryl Miles via Richard Levitte and Bodo Moeller]
1409 *) Disable "ECCdraft" ciphersuites more thoroughly. Now special
1410 treatment in ssl/ssl_ciph.s makes sure that these ciphersuites
1411 cannot be implicitly activated as part of, e.g., the "AES" alias.
1412 However, please upgrade to OpenSSL 0.9.9[-dev] for
1413 non-experimental use of the ECC ciphersuites to get TLS extension
1414 support, which is required for curve and point format negotiation
1415 to avoid potential handshake problems.
1418 *) Disable rogue ciphersuites:
1420 - SSLv2 0x08 0x00 0x80 ("RC4-64-MD5")
1421 - SSLv3/TLSv1 0x00 0x61 ("EXP1024-RC2-CBC-MD5")
1422 - SSLv3/TLSv1 0x00 0x60 ("EXP1024-RC4-MD5")
1424 The latter two were purportedly from
1425 draft-ietf-tls-56-bit-ciphersuites-0[01].txt, but do not really
1428 Also deactivate the remaining ciphersuites from
1429 draft-ietf-tls-56-bit-ciphersuites-01.txt. These are just as
1430 unofficial, and the ID has long expired.
1433 *) Fix RSA blinding Heisenbug (problems sometimes occured on
1434 dual-core machines) and other potential thread-safety issues.
1437 *) Add the symmetric cipher Camellia (128-bit, 192-bit, 256-bit key
1438 versions), which is now available for royalty-free use
1439 (see http://info.isl.ntt.co.jp/crypt/eng/info/chiteki.html).
1440 Also, add Camellia TLS ciphersuites from RFC 4132.
1442 To minimize changes between patchlevels in the OpenSSL 0.9.8
1443 series, Camellia remains excluded from compilation unless OpenSSL
1444 is configured with 'enable-camellia'.
1447 *) Disable the padding bug check when compression is in use. The padding
1448 bug check assumes the first packet is of even length, this is not
1449 necessarily true if compresssion is enabled and can result in false
1450 positives causing handshake failure. The actual bug test is ancient
1451 code so it is hoped that implementations will either have fixed it by
1452 now or any which still have the bug do not support compression.
1455 Changes between 0.9.8a and 0.9.8b [04 May 2006]
1457 *) When applying a cipher rule check to see if string match is an explicit
1458 cipher suite and only match that one cipher suite if it is.
1461 *) Link in manifests for VC++ if needed.
1462 [Austin Ziegler <halostatue@gmail.com>]
1464 *) Update support for ECC-based TLS ciphersuites according to
1465 draft-ietf-tls-ecc-12.txt with proposed changes (but without
1466 TLS extensions, which are supported starting with the 0.9.9
1467 branch, not in the OpenSSL 0.9.8 branch).
1470 *) New functions EVP_CIPHER_CTX_new() and EVP_CIPHER_CTX_free() to support
1471 opaque EVP_CIPHER_CTX handling.
1474 *) Fixes and enhancements to zlib compression code. We now only use
1475 "zlib1.dll" and use the default __cdecl calling convention on Win32
1476 to conform with the standards mentioned here:
1477 http://www.zlib.net/DLL_FAQ.txt
1478 Static zlib linking now works on Windows and the new --with-zlib-include
1479 --with-zlib-lib options to Configure can be used to supply the location
1480 of the headers and library. Gracefully handle case where zlib library
1484 *) Several fixes and enhancements to the OID generation code. The old code
1485 sometimes allowed invalid OIDs (1.X for X >= 40 for example), couldn't
1486 handle numbers larger than ULONG_MAX, truncated printing and had a
1487 non standard OBJ_obj2txt() behaviour.
1490 *) Add support for building of engines under engine/ as shared libraries
1491 under VC++ build system.
1494 *) Corrected the numerous bugs in the Win32 path splitter in DSO.
1495 Hopefully, we will not see any false combination of paths any more.
1498 Changes between 0.9.8 and 0.9.8a [11 Oct 2005]
1500 *) Remove the functionality of SSL_OP_MSIE_SSLV2_RSA_PADDING
1501 (part of SSL_OP_ALL). This option used to disable the
1502 countermeasure against man-in-the-middle protocol-version
1503 rollback in the SSL 2.0 server implementation, which is a bad
1504 idea. (CVE-2005-2969)
1506 [Bodo Moeller; problem pointed out by Yutaka Oiwa (Research Center
1507 for Information Security, National Institute of Advanced Industrial
1508 Science and Technology [AIST], Japan)]
1510 *) Add two function to clear and return the verify parameter flags.
1513 *) Keep cipherlists sorted in the source instead of sorting them at
1514 runtime, thus removing the need for a lock.
1517 *) Avoid some small subgroup attacks in Diffie-Hellman.
1518 [Nick Mathewson and Ben Laurie]
1520 *) Add functions for well-known primes.
1523 *) Extended Windows CE support.
1524 [Satoshi Nakamura and Andy Polyakov]
1526 *) Initialize SSL_METHOD structures at compile time instead of during
1527 runtime, thus removing the need for a lock.
1530 *) Make PKCS7_decrypt() work even if no certificate is supplied by
1531 attempting to decrypt each encrypted key in turn. Add support to
1535 Changes between 0.9.7h and 0.9.8 [05 Jul 2005]
1537 [NB: OpenSSL 0.9.7i and later 0.9.7 patch levels were released after
1540 *) Add libcrypto.pc and libssl.pc for those who feel they need them.
1543 *) Change CA.sh and CA.pl so they don't bundle the CSR and the private
1544 key into the same file any more.
1547 *) Add initial support for Win64, both IA64 and AMD64/x64 flavors.
1550 *) Add -utf8 command line and config file option to 'ca'.
1551 [Stefan <stf@udoma.org]
1553 *) Removed the macro des_crypt(), as it seems to conflict with some
1554 libraries. Use DES_crypt().
1557 *) Correct naming of the 'chil' and '4758cca' ENGINEs. This
1558 involves renaming the source and generated shared-libs for
1559 both. The engines will accept the corrected or legacy ids
1560 ('ncipher' and '4758_cca' respectively) when binding. NB,
1561 this only applies when building 'shared'.
1562 [Corinna Vinschen <vinschen@redhat.com> and Geoff Thorpe]
1564 *) Add attribute functions to EVP_PKEY structure. Modify
1565 PKCS12_create() to recognize a CSP name attribute and
1566 use it. Make -CSP option work again in pkcs12 utility.
1569 *) Add new functionality to the bn blinding code:
1570 - automatic re-creation of the BN_BLINDING parameters after
1571 a fixed number of uses (currently 32)
1572 - add new function for parameter creation
1573 - introduce flags to control the update behaviour of the
1574 BN_BLINDING parameters
1575 - hide BN_BLINDING structure
1576 Add a second BN_BLINDING slot to the RSA structure to improve
1577 performance when a single RSA object is shared among several
1581 *) Add support for DTLS.
1582 [Nagendra Modadugu <nagendra@cs.stanford.edu> and Ben Laurie]
1584 *) Add support for DER encoded private keys (SSL_FILETYPE_ASN1)
1585 to SSL_CTX_use_PrivateKey_file() and SSL_use_PrivateKey_file()
1588 *) Remove buggy and incompletet DH cert support from
1589 ssl/ssl_rsa.c and ssl/s3_both.c
1592 *) Use SHA-1 instead of MD5 as the default digest algorithm for
1593 the apps/openssl applications.
1596 *) Compile clean with "-Wall -Wmissing-prototypes
1597 -Wstrict-prototypes -Wmissing-declarations -Werror". Currently
1598 DEBUG_SAFESTACK must also be set.
1601 *) Change ./Configure so that certain algorithms can be disabled by default.
1602 The new counterpiece to "no-xxx" is "enable-xxx".
1604 The patented RC5 and MDC2 algorithms will now be disabled unless
1605 "enable-rc5" and "enable-mdc2", respectively, are specified.
1607 (IDEA remains enabled despite being patented. This is because IDEA
1608 is frequently required for interoperability, and there is no license
1609 fee for non-commercial use. As before, "no-idea" can be used to
1610 avoid this algorithm.)
1614 *) Add processing of proxy certificates (see RFC 3820). This work was
1615 sponsored by KTH (The Royal Institute of Technology in Stockholm) and
1616 EGEE (Enabling Grids for E-science in Europe).
1619 *) RC4 performance overhaul on modern architectures/implementations, such
1620 as Intel P4, IA-64 and AMD64.
1623 *) New utility extract-section.pl. This can be used specify an alternative
1624 section number in a pod file instead of having to treat each file as
1625 a separate case in Makefile. This can be done by adding two lines to the
1628 =for comment openssl_section:XXX
1630 The blank line is mandatory.
1634 *) New arguments -certform, -keyform and -pass for s_client and s_server
1635 to allow alternative format key and certificate files and passphrase
1639 *) New structure X509_VERIFY_PARAM which combines current verify parameters,
1640 update associated structures and add various utility functions.
1642 Add new policy related verify parameters, include policy checking in
1643 standard verify code. Enhance 'smime' application with extra parameters
1644 to support policy checking and print out.
1647 *) Add a new engine to support VIA PadLock ACE extensions in the VIA C3
1648 Nehemiah processors. These extensions support AES encryption in hardware
1649 as well as RNG (though RNG support is currently disabled).
1650 [Michal Ludvig <michal@logix.cz>, with help from Andy Polyakov]
1652 *) Deprecate BN_[get|set]_params() functions (they were ignored internally).
1655 *) New FIPS 180-2 algorithms, SHA-224/-256/-384/-512 are implemented.
1656 [Andy Polyakov and a number of other people]
1658 *) Improved PowerPC platform support. Most notably BIGNUM assembler
1659 implementation contributed by IBM.
1660 [Suresh Chari, Peter Waltenberg, Andy Polyakov]
1662 *) The new 'RSA_generate_key_ex' function now takes a BIGNUM for the public
1663 exponent rather than 'unsigned long'. There is a corresponding change to
1664 the new 'rsa_keygen' element of the RSA_METHOD structure.
1665 [Jelte Jansen, Geoff Thorpe]
1667 *) Functionality for creating the initial serial number file is now
1668 moved from CA.pl to the 'ca' utility with a new option -create_serial.
1670 (Before OpenSSL 0.9.7e, CA.pl used to initialize the serial
1671 number file to 1, which is bound to cause problems. To avoid
1672 the problems while respecting compatibility between different 0.9.7
1673 patchlevels, 0.9.7e employed 'openssl x509 -next_serial' in
1674 CA.pl for serial number initialization. With the new release 0.9.8,
1675 we can fix the problem directly in the 'ca' utility.)
1678 *) Reduced header interdepencies by declaring more opaque objects in
1679 ossl_typ.h. As a consequence, including some headers (eg. engine.h) will
1680 give fewer recursive includes, which could break lazy source code - so
1681 this change is covered by the OPENSSL_NO_DEPRECATED symbol. As always,
1682 developers should define this symbol when building and using openssl to
1683 ensure they track the recommended behaviour, interfaces, [etc], but
1684 backwards-compatible behaviour prevails when this isn't defined.
1687 *) New function X509_POLICY_NODE_print() which prints out policy nodes.
1690 *) Add new EVP function EVP_CIPHER_CTX_rand_key and associated functionality.
1691 This will generate a random key of the appropriate length based on the
1692 cipher context. The EVP_CIPHER can provide its own random key generation
1693 routine to support keys of a specific form. This is used in the des and
1694 3des routines to generate a key of the correct parity. Update S/MIME
1695 code to use new functions and hence generate correct parity DES keys.
1696 Add EVP_CHECK_DES_KEY #define to return an error if the key is not
1697 valid (weak or incorrect parity).
1700 *) Add a local set of CRLs that can be used by X509_verify_cert() as well
1701 as looking them up. This is useful when the verified structure may contain
1702 CRLs, for example PKCS#7 signedData. Modify PKCS7_verify() to use any CRLs
1703 present unless the new PKCS7_NO_CRL flag is asserted.
1706 *) Extend ASN1 oid configuration module. It now additionally accepts the
1709 shortName = some long name, 1.2.3.4
1712 *) Reimplemented the BN_CTX implementation. There is now no more static
1713 limitation on the number of variables it can handle nor the depth of the
1714 "stack" handling for BN_CTX_start()/BN_CTX_end() pairs. The stack
1715 information can now expand as required, and rather than having a single
1716 static array of bignums, BN_CTX now uses a linked-list of such arrays
1717 allowing it to expand on demand whilst maintaining the usefulness of
1718 BN_CTX's "bundling".
1721 *) Add a missing BN_CTX parameter to the 'rsa_mod_exp' callback in RSA_METHOD
1722 to allow all RSA operations to function using a single BN_CTX.
1725 *) Preliminary support for certificate policy evaluation and checking. This
1726 is initially intended to pass the tests outlined in "Conformance Testing
1727 of Relying Party Client Certificate Path Processing Logic" v1.07.
1730 *) bn_dup_expand() has been deprecated, it was introduced in 0.9.7 and
1731 remained unused and not that useful. A variety of other little bignum
1732 tweaks and fixes have also been made continuing on from the audit (see
1736 *) Constify all or almost all d2i, c2i, s2i and r2i functions, along with
1737 associated ASN1, EVP and SSL functions and old ASN1 macros.
1740 *) BN_zero() only needs to set 'top' and 'neg' to zero for correct results,
1741 and this should never fail. So the return value from the use of
1742 BN_set_word() (which can fail due to needless expansion) is now deprecated;
1743 if OPENSSL_NO_DEPRECATED is defined, BN_zero() is a void macro.
1746 *) BN_CTX_get() should return zero-valued bignums, providing the same
1747 initialised value as BN_new().
1748 [Geoff Thorpe, suggested by Ulf Möller]
1750 *) Support for inhibitAnyPolicy certificate extension.
1753 *) An audit of the BIGNUM code is underway, for which debugging code is
1754 enabled when BN_DEBUG is defined. This makes stricter enforcements on what
1755 is considered valid when processing BIGNUMs, and causes execution to
1756 assert() when a problem is discovered. If BN_DEBUG_RAND is defined,
1757 further steps are taken to deliberately pollute unused data in BIGNUM
1758 structures to try and expose faulty code further on. For now, openssl will
1759 (in its default mode of operation) continue to tolerate the inconsistent
1760 forms that it has tolerated in the past, but authors and packagers should
1761 consider trying openssl and their own applications when compiled with
1762 these debugging symbols defined. It will help highlight potential bugs in
1763 their own code, and will improve the test coverage for OpenSSL itself. At
1764 some point, these tighter rules will become openssl's default to improve
1765 maintainability, though the assert()s and other overheads will remain only
1766 in debugging configurations. See bn.h for more details.
1767 [Geoff Thorpe, Nils Larsch, Ulf Möller]
1769 *) BN_CTX_init() has been deprecated, as BN_CTX is an opaque structure
1770 that can only be obtained through BN_CTX_new() (which implicitly
1771 initialises it). The presence of this function only made it possible
1772 to overwrite an existing structure (and cause memory leaks).
1775 *) Because of the callback-based approach for implementing LHASH as a
1776 template type, lh_insert() adds opaque objects to hash-tables and
1777 lh_doall() or lh_doall_arg() are typically used with a destructor callback
1778 to clean up those corresponding objects before destroying the hash table
1779 (and losing the object pointers). So some over-zealous constifications in
1780 LHASH have been relaxed so that lh_insert() does not take (nor store) the
1781 objects as "const" and the lh_doall[_arg] callback wrappers are not
1782 prototyped to have "const" restrictions on the object pointers they are
1783 given (and so aren't required to cast them away any more).
1786 *) The tmdiff.h API was so ugly and minimal that our own timing utility
1787 (speed) prefers to use its own implementation. The two implementations
1788 haven't been consolidated as yet (volunteers?) but the tmdiff API has had
1789 its object type properly exposed (MS_TM) instead of casting to/from "char
1790 *". This may still change yet if someone realises MS_TM and "ms_time_***"
1791 aren't necessarily the greatest nomenclatures - but this is what was used
1792 internally to the implementation so I've used that for now.
1795 *) Ensure that deprecated functions do not get compiled when
1796 OPENSSL_NO_DEPRECATED is defined. Some "openssl" subcommands and a few of
1797 the self-tests were still using deprecated key-generation functions so
1798 these have been updated also.
1801 *) Reorganise PKCS#7 code to separate the digest location functionality
1802 into PKCS7_find_digest(), digest addtion into PKCS7_bio_add_digest().
1803 New function PKCS7_set_digest() to set the digest type for PKCS#7
1804 digestedData type. Add additional code to correctly generate the
1805 digestedData type and add support for this type in PKCS7 initialization
1809 *) New function PKCS7_set0_type_other() this initializes a PKCS7
1810 structure of type "other".
1813 *) Fix prime generation loop in crypto/bn/bn_prime.pl by making
1814 sure the loop does correctly stop and breaking ("division by zero")
1815 modulus operations are not performed. The (pre-generated) prime
1816 table crypto/bn/bn_prime.h was already correct, but it could not be
1817 re-generated on some platforms because of the "division by zero"
1818 situation in the script.
1819 [Ralf S. Engelschall]
1821 *) Update support for ECC-based TLS ciphersuites according to
1822 draft-ietf-tls-ecc-03.txt: the KDF1 key derivation function with
1823 SHA-1 now is only used for "small" curves (where the
1824 representation of a field element takes up to 24 bytes); for
1825 larger curves, the field element resulting from ECDH is directly
1826 used as premaster secret.
1827 [Douglas Stebila (Sun Microsystems Laboratories)]
1829 *) Add code for kP+lQ timings to crypto/ec/ectest.c, and add SEC2
1830 curve secp160r1 to the tests.
1831 [Douglas Stebila (Sun Microsystems Laboratories)]
1833 *) Add the possibility to load symbols globally with DSO.
1834 [Götz Babin-Ebell <babin-ebell@trustcenter.de> via Richard Levitte]
1836 *) Add the functions ERR_set_mark() and ERR_pop_to_mark() for better
1837 control of the error stack.
1840 *) Add support for STORE in ENGINE.
1843 *) Add the STORE type. The intention is to provide a common interface
1844 to certificate and key stores, be they simple file-based stores, or
1845 HSM-type store, or LDAP stores, or...
1846 NOTE: The code is currently UNTESTED and isn't really used anywhere.
1849 *) Add a generic structure called OPENSSL_ITEM. This can be used to
1850 pass a list of arguments to any function as well as provide a way
1851 for a function to pass data back to the caller.
1854 *) Add the functions BUF_strndup() and BUF_memdup(). BUF_strndup()
1855 works like BUF_strdup() but can be used to duplicate a portion of
1856 a string. The copy gets NUL-terminated. BUF_memdup() duplicates
1860 *) Add the function sk_find_ex() which works like sk_find(), but will
1861 return an index to an element even if an exact match couldn't be
1862 found. The index is guaranteed to point at the element where the
1863 searched-for key would be inserted to preserve sorting order.
1866 *) Add the function OBJ_bsearch_ex() which works like OBJ_bsearch() but
1867 takes an extra flags argument for optional functionality. Currently,
1868 the following flags are defined:
1870 OBJ_BSEARCH_VALUE_ON_NOMATCH
1871 This one gets OBJ_bsearch_ex() to return a pointer to the first
1872 element where the comparing function returns a negative or zero
1875 OBJ_BSEARCH_FIRST_VALUE_ON_MATCH
1876 This one gets OBJ_bsearch_ex() to return a pointer to the first
1877 element where the comparing function returns zero. This is useful
1878 if there are more than one element where the comparing function
1882 *) Make it possible to create self-signed certificates with 'openssl ca'
1883 in such a way that the self-signed certificate becomes part of the
1884 CA database and uses the same mechanisms for serial number generation
1885 as all other certificate signing. The new flag '-selfsign' enables
1886 this functionality. Adapt CA.sh and CA.pl.in.
1889 *) Add functionality to check the public key of a certificate request
1890 against a given private. This is useful to check that a certificate
1891 request can be signed by that key (self-signing).
1894 *) Make it possible to have multiple active certificates with the same
1895 subject in the CA index file. This is done only if the keyword
1896 'unique_subject' is set to 'no' in the main CA section (default
1897 if 'CA_default') of the configuration file. The value is saved
1898 with the database itself in a separate index attribute file,
1899 named like the index file with '.attr' appended to the name.
1902 *) Generate muti valued AVAs using '+' notation in config files for
1906 *) Support for nameConstraints certificate extension.
1909 *) Support for policyConstraints certificate extension.
1912 *) Support for policyMappings certificate extension.
1915 *) Make sure the default DSA_METHOD implementation only uses its
1916 dsa_mod_exp() and/or bn_mod_exp() handlers if they are non-NULL,
1917 and change its own handlers to be NULL so as to remove unnecessary
1918 indirection. This lets alternative implementations fallback to the
1919 default implementation more easily.
1922 *) Support for directoryName in GeneralName related extensions
1926 *) Make it possible to link applications using Makefile.shared.
1927 Make that possible even when linking against static libraries!
1930 *) Support for single pass processing for S/MIME signing. This now
1931 means that S/MIME signing can be done from a pipe, in addition
1932 cleartext signing (multipart/signed type) is effectively streaming
1933 and the signed data does not need to be all held in memory.
1935 This is done with a new flag PKCS7_STREAM. When this flag is set
1936 PKCS7_sign() only initializes the PKCS7 structure and the actual signing
1937 is done after the data is output (and digests calculated) in
1938 SMIME_write_PKCS7().
1941 *) Add full support for -rpath/-R, both in shared libraries and
1942 applications, at least on the platforms where it's known how
1946 *) In crypto/ec/ec_mult.c, implement fast point multiplication with
1947 precomputation, based on wNAF splitting: EC_GROUP_precompute_mult()
1948 will now compute a table of multiples of the generator that
1949 makes subsequent invocations of EC_POINTs_mul() or EC_POINT_mul()
1950 faster (notably in the case of a single point multiplication,
1951 scalar * generator).
1952 [Nils Larsch, Bodo Moeller]
1954 *) IPv6 support for certificate extensions. The various extensions
1955 which use the IP:a.b.c.d can now take IPv6 addresses using the
1956 formats of RFC1884 2.2 . IPv6 addresses are now also displayed
1960 *) Added an ENGINE that implements RSA by performing private key
1961 exponentiations with the GMP library. The conversions to and from
1962 GMP's mpz_t format aren't optimised nor are any montgomery forms
1963 cached, and on x86 it appears OpenSSL's own performance has caught up.
1964 However there are likely to be other architectures where GMP could
1965 provide a boost. This ENGINE is not built in by default, but it can be
1966 specified at Configure time and should be accompanied by the necessary
1967 linker additions, eg;
1968 ./config -DOPENSSL_USE_GMP -lgmp
1971 *) "openssl engine" will not display ENGINE/DSO load failure errors when
1972 testing availability of engines with "-t" - the old behaviour is
1973 produced by increasing the feature's verbosity with "-tt".
1976 *) ECDSA routines: under certain error conditions uninitialized BN objects
1977 could be freed. Solution: make sure initialization is performed early
1978 enough. (Reported and fix supplied by Nils Larsch <nla@trustcenter.de>
1982 *) Key-generation can now be implemented in RSA_METHOD, DSA_METHOD
1983 and DH_METHOD (eg. by ENGINE implementations) to override the normal
1984 software implementations. For DSA and DH, parameter generation can
1985 also be overriden by providing the appropriate method callbacks.
1988 *) Change the "progress" mechanism used in key-generation and
1989 primality testing to functions that take a new BN_GENCB pointer in
1990 place of callback/argument pairs. The new API functions have "_ex"
1991 postfixes and the older functions are reimplemented as wrappers for
1992 the new ones. The OPENSSL_NO_DEPRECATED symbol can be used to hide
1993 declarations of the old functions to help (graceful) attempts to
1994 migrate to the new functions. Also, the new key-generation API
1995 functions operate on a caller-supplied key-structure and return
1996 success/failure rather than returning a key or NULL - this is to
1997 help make "keygen" another member function of RSA_METHOD etc.
1999 Example for using the new callback interface:
2001 int (*my_callback)(int a, int b, BN_GENCB *cb) = ...;
2005 BN_GENCB_set(&my_cb, my_callback, my_arg);
2007 return BN_is_prime_ex(some_bignum, BN_prime_checks, NULL, &cb);
2008 /* For the meaning of a, b in calls to my_callback(), see the
2009 * documentation of the function that calls the callback.
2010 * cb will point to my_cb; my_arg can be retrieved as cb->arg.
2011 * my_callback should return 1 if it wants BN_is_prime_ex()
2012 * to continue, or 0 to stop.
2017 *) Change the ZLIB compression method to be stateful, and make it
2018 available to TLS with the number defined in
2019 draft-ietf-tls-compression-04.txt.
2022 *) Add the ASN.1 structures and functions for CertificatePair, which
2023 is defined as follows (according to X.509_4thEditionDraftV6.pdf):
2025 CertificatePair ::= SEQUENCE {
2026 forward [0] Certificate OPTIONAL,
2027 reverse [1] Certificate OPTIONAL,
2028 -- at least one of the pair shall be present -- }
2030 Also implement the PEM functions to read and write certificate
2031 pairs, and defined the PEM tag as "CERTIFICATE PAIR".
2033 This needed to be defined, mostly for the sake of the LDAP
2034 attribute crossCertificatePair, but may prove useful elsewhere as
2038 *) Make it possible to inhibit symlinking of shared libraries in
2039 Makefile.shared, for Cygwin's sake.
2042 *) Extend the BIGNUM API by creating a function
2043 void BN_set_negative(BIGNUM *a, int neg);
2044 and a macro that behave like
2045 int BN_is_negative(const BIGNUM *a);
2047 to avoid the need to access 'a->neg' directly in applications.
2050 *) Implement fast modular reduction for pseudo-Mersenne primes
2051 used in NIST curves (crypto/bn/bn_nist.c, crypto/ec/ecp_nist.c).
2052 EC_GROUP_new_curve_GFp() will now automatically use this
2054 [Nils Larsch <nla@trustcenter.de>]
2056 *) Add new lock type (CRYPTO_LOCK_BN).
2059 *) Change the ENGINE framework to automatically load engines
2060 dynamically from specific directories unless they could be
2061 found to already be built in or loaded. Move all the
2062 current engines except for the cryptodev one to a new
2064 The engines in engines/ are built as shared libraries if
2065 the "shared" options was given to ./Configure or ./config.
2066 Otherwise, they are inserted in libcrypto.a.
2067 /usr/local/ssl/engines is the default directory for dynamic
2068 engines, but that can be overriden at configure time through
2069 the usual use of --prefix and/or --openssldir, and at run
2070 time with the environment variable OPENSSL_ENGINES.
2071 [Geoff Thorpe and Richard Levitte]
2073 *) Add Makefile.shared, a helper makefile to build shared
2074 libraries. Addapt Makefile.org.
2077 *) Add version info to Win32 DLLs.
2078 [Peter 'Luna' Runestig" <peter@runestig.com>]
2080 *) Add new 'medium level' PKCS#12 API. Certificates and keys
2081 can be added using this API to created arbitrary PKCS#12
2082 files while avoiding the low level API.
2084 New options to PKCS12_create(), key or cert can be NULL and
2085 will then be omitted from the output file. The encryption
2086 algorithm NIDs can be set to -1 for no encryption, the mac
2087 iteration count can be set to 0 to omit the mac.
2089 Enhance pkcs12 utility by making the -nokeys and -nocerts
2090 options work when creating a PKCS#12 file. New option -nomac
2091 to omit the mac, NONE can be set for an encryption algorithm.
2092 New code is modified to use the enhanced PKCS12_create()
2093 instead of the low level API.
2096 *) Extend ASN1 encoder to support indefinite length constructed
2097 encoding. This can output sequences tags and octet strings in
2098 this form. Modify pk7_asn1.c to support indefinite length
2099 encoding. This is experimental and needs additional code to
2100 be useful, such as an ASN1 bio and some enhanced streaming
2103 Extend template encode functionality so that tagging is passed
2104 down to the template encoder.
2107 *) Let 'openssl req' fail if an argument to '-newkey' is not
2108 recognized instead of using RSA as a default.
2111 *) Add support for ECC-based ciphersuites from draft-ietf-tls-ecc-01.txt.
2112 As these are not official, they are not included in "ALL";
2113 the "ECCdraft" ciphersuite group alias can be used to select them.
2114 [Vipul Gupta and Sumit Gupta (Sun Microsystems Laboratories)]
2116 *) Add ECDH engine support.
2117 [Nils Gura and Douglas Stebila (Sun Microsystems Laboratories)]
2119 *) Add ECDH in new directory crypto/ecdh/.
2120 [Douglas Stebila (Sun Microsystems Laboratories)]
2122 *) Let BN_rand_range() abort with an error after 100 iterations
2123 without success (which indicates a broken PRNG).
2126 *) Change BN_mod_sqrt() so that it verifies that the input value
2127 is really the square of the return value. (Previously,
2128 BN_mod_sqrt would show GIGO behaviour.)
2131 *) Add named elliptic curves over binary fields from X9.62, SECG,
2132 and WAP/WTLS; add OIDs that were still missing.
2134 [Sheueling Chang Shantz and Douglas Stebila
2135 (Sun Microsystems Laboratories)]
2137 *) Extend the EC library for elliptic curves over binary fields
2138 (new files ec2_smpl.c, ec2_smpt.c, ec2_mult.c in crypto/ec/).
2141 EC_GF2m_simple_method
2145 EC_GROUP_new_curve_GF2m
2146 EC_GROUP_set_curve_GF2m
2147 EC_GROUP_get_curve_GF2m
2148 EC_POINT_set_affine_coordinates_GF2m
2149 EC_POINT_get_affine_coordinates_GF2m
2150 EC_POINT_set_compressed_coordinates_GF2m
2152 Point compression for binary fields is disabled by default for
2153 patent reasons (compile with OPENSSL_EC_BIN_PT_COMP defined to
2156 As binary polynomials are represented as BIGNUMs, various members
2157 of the EC_GROUP and EC_POINT data structures can be shared
2158 between the implementations for prime fields and binary fields;
2159 the above ..._GF2m functions (except for EX_GROUP_new_curve_GF2m)
2160 are essentially identical to their ..._GFp counterparts.
2161 (For simplicity, the '..._GFp' prefix has been dropped from
2162 various internal method names.)
2164 An internal 'field_div' method (similar to 'field_mul' and
2165 'field_sqr') has been added; this is used only for binary fields.
2167 [Sheueling Chang Shantz and Douglas Stebila
2168 (Sun Microsystems Laboratories)]
2170 *) Optionally dispatch EC_POINT_mul(), EC_POINT_precompute_mult()
2171 through methods ('mul', 'precompute_mult').
2173 The generic implementations (now internally called 'ec_wNAF_mul'
2174 and 'ec_wNAF_precomputed_mult') remain the default if these
2175 methods are undefined.
2177 [Sheueling Chang Shantz and Douglas Stebila
2178 (Sun Microsystems Laboratories)]
2180 *) New function EC_GROUP_get_degree, which is defined through
2181 EC_METHOD. For curves over prime fields, this returns the bit
2182 length of the modulus.
2184 [Sheueling Chang Shantz and Douglas Stebila
2185 (Sun Microsystems Laboratories)]
2187 *) New functions EC_GROUP_dup, EC_POINT_dup.
2188 (These simply call ..._new and ..._copy).
2190 [Sheueling Chang Shantz and Douglas Stebila
2191 (Sun Microsystems Laboratories)]
2193 *) Add binary polynomial arithmetic software in crypto/bn/bn_gf2m.c.
2194 Polynomials are represented as BIGNUMs (where the sign bit is not
2195 used) in the following functions [macros]:
2198 BN_GF2m_sub [= BN_GF2m_add]
2199 BN_GF2m_mod [wrapper for BN_GF2m_mod_arr]
2200 BN_GF2m_mod_mul [wrapper for BN_GF2m_mod_mul_arr]
2201 BN_GF2m_mod_sqr [wrapper for BN_GF2m_mod_sqr_arr]
2203 BN_GF2m_mod_exp [wrapper for BN_GF2m_mod_exp_arr]
2204 BN_GF2m_mod_sqrt [wrapper for BN_GF2m_mod_sqrt_arr]
2205 BN_GF2m_mod_solve_quad [wrapper for BN_GF2m_mod_solve_quad_arr]
2206 BN_GF2m_cmp [= BN_ucmp]
2208 (Note that only the 'mod' functions are actually for fields GF(2^m).
2209 BN_GF2m_add() is misnomer, but this is for the sake of consistency.)
2211 For some functions, an the irreducible polynomial defining a
2212 field can be given as an 'unsigned int[]' with strictly
2213 decreasing elements giving the indices of those bits that are set;
2214 i.e., p[] represents the polynomial
2215 f(t) = t^p[0] + t^p[1] + ... + t^p[k]
2217 p[0] > p[1] > ... > p[k] = 0.
2218 This applies to the following functions:
2223 BN_GF2m_mod_inv_arr [wrapper for BN_GF2m_mod_inv]
2224 BN_GF2m_mod_div_arr [wrapper for BN_GF2m_mod_div]
2226 BN_GF2m_mod_sqrt_arr
2227 BN_GF2m_mod_solve_quad_arr
2231 Conversion can be performed by the following functions:
2236 bntest.c has additional tests for binary polynomial arithmetic.
2238 Two implementations for BN_GF2m_mod_div() are available.
2239 The default algorithm simply uses BN_GF2m_mod_inv() and
2240 BN_GF2m_mod_mul(). The alternative algorithm is compiled in only
2241 if OPENSSL_SUN_GF2M_DIV is defined (patent pending; read the
2242 copyright notice in crypto/bn/bn_gf2m.c before enabling it).
2244 [Sheueling Chang Shantz and Douglas Stebila
2245 (Sun Microsystems Laboratories)]
2247 *) Add new error code 'ERR_R_DISABLED' that can be used when some
2248 functionality is disabled at compile-time.
2249 [Douglas Stebila <douglas.stebila@sun.com>]
2251 *) Change default behaviour of 'openssl asn1parse' so that more
2252 information is visible when viewing, e.g., a certificate:
2254 Modify asn1_parse2 (crypto/asn1/asn1_par.c) so that in non-'dump'
2255 mode the content of non-printable OCTET STRINGs is output in a
2256 style similar to INTEGERs, but with '[HEX DUMP]' prepended to
2257 avoid the appearance of a printable string.
2258 [Nils Larsch <nla@trustcenter.de>]
2260 *) Add 'asn1_flag' and 'asn1_form' member to EC_GROUP with access
2262 EC_GROUP_set_asn1_flag()
2263 EC_GROUP_get_asn1_flag()
2264 EC_GROUP_set_point_conversion_form()
2265 EC_GROUP_get_point_conversion_form()
2266 These control ASN1 encoding details:
2267 - Curves (i.e., groups) are encoded explicitly unless asn1_flag
2268 has been set to OPENSSL_EC_NAMED_CURVE.
2269 - Points are encoded in uncompressed form by default; options for
2270 asn1_for are as for point2oct, namely
2271 POINT_CONVERSION_COMPRESSED
2272 POINT_CONVERSION_UNCOMPRESSED
2273 POINT_CONVERSION_HYBRID
2275 Also add 'seed' and 'seed_len' members to EC_GROUP with access
2278 EC_GROUP_get0_seed()
2279 EC_GROUP_get_seed_len()
2280 This is used only for ASN1 purposes (so far).
2281 [Nils Larsch <nla@trustcenter.de>]
2283 *) Add 'field_type' member to EC_METHOD, which holds the NID
2284 of the appropriate field type OID. The new function
2285 EC_METHOD_get_field_type() returns this value.
2286 [Nils Larsch <nla@trustcenter.de>]
2291 EC_POINT_point2hex()
2292 EC_POINT_hex2point()
2293 providing useful interfaces to EC_POINT_point2oct() and
2294 EC_POINT_oct2point().
2295 [Nils Larsch <nla@trustcenter.de>]
2297 *) Change internals of the EC library so that the functions
2298 EC_GROUP_set_generator()
2299 EC_GROUP_get_generator()
2300 EC_GROUP_get_order()
2301 EC_GROUP_get_cofactor()
2302 are implemented directly in crypto/ec/ec_lib.c and not dispatched
2303 to methods, which would lead to unnecessary code duplication when
2304 adding different types of curves.
2305 [Nils Larsch <nla@trustcenter.de> with input by Bodo Moeller]
2307 *) Implement compute_wNAF (crypto/ec/ec_mult.c) without BIGNUM
2308 arithmetic, and such that modified wNAFs are generated
2309 (which avoid length expansion in many cases).
2312 *) Add a function EC_GROUP_check_discriminant() (defined via
2313 EC_METHOD) that verifies that the curve discriminant is non-zero.
2315 Add a function EC_GROUP_check() that makes some sanity tests
2316 on a EC_GROUP, its generator and order. This includes
2317 EC_GROUP_check_discriminant().
2318 [Nils Larsch <nla@trustcenter.de>]
2320 *) Add ECDSA in new directory crypto/ecdsa/.
2322 Add applications 'openssl ecparam' and 'openssl ecdsa'
2323 (these are based on 'openssl dsaparam' and 'openssl dsa').
2325 ECDSA support is also included in various other files across the
2326 library. Most notably,
2327 - 'openssl req' now has a '-newkey ecdsa:file' option;
2328 - EVP_PKCS82PKEY (crypto/evp/evp_pkey.c) now can handle ECDSA;
2329 - X509_PUBKEY_get (crypto/asn1/x_pubkey.c) and
2330 d2i_PublicKey (crypto/asn1/d2i_pu.c) have been modified to make
2331 them suitable for ECDSA where domain parameters must be
2332 extracted before the specific public key;
2333 - ECDSA engine support has been added.
2334 [Nils Larsch <nla@trustcenter.de>]
2336 *) Include some named elliptic curves, and add OIDs from X9.62,
2337 SECG, and WAP/WTLS. Each curve can be obtained from the new
2339 EC_GROUP_new_by_curve_name(),
2340 and the list of available named curves can be obtained with
2341 EC_get_builtin_curves().
2342 Also add a 'curve_name' member to EC_GROUP objects, which can be
2344 EC_GROUP_set_curve_name()
2345 EC_GROUP_get_curve_name()
2346 [Nils Larsch <larsch@trustcenter.de, Bodo Moeller]
2348 *) Remove a few calls to bn_wexpand() in BN_sqr() (the one in there
2349 was actually never needed) and in BN_mul(). The removal in BN_mul()
2350 required a small change in bn_mul_part_recursive() and the addition
2351 of the functions bn_cmp_part_words(), bn_sub_part_words() and
2352 bn_add_part_words(), which do the same thing as bn_cmp_words(),
2353 bn_sub_words() and bn_add_words() except they take arrays with
2357 Changes between 0.9.7m and 0.9.7n [xx XXX xxxx]
2359 *) In the SSL/TLS server implementation, be strict about session ID
2360 context matching (which matters if an application uses a single
2361 external cache for different purposes). Previously,
2362 out-of-context reuse was forbidden only if SSL_VERIFY_PEER was
2363 set. This did ensure strict client verification, but meant that,
2364 with applications using a single external cache for quite
2365 different requirements, clients could circumvent ciphersuite
2366 restrictions for a given session ID context by starting a session
2367 in a different context.
2370 Changes between 0.9.7l and 0.9.7m [23 Feb 2007]
2372 *) Cleanse PEM buffers before freeing them since they may contain
2374 [Benjamin Bennett <ben@psc.edu>]
2376 *) Include "!eNULL" in SSL_DEFAULT_CIPHER_LIST to make sure that
2377 a ciphersuite string such as "DEFAULT:RSA" cannot enable
2378 authentication-only ciphersuites.
2381 *) Since AES128 and AES256 share a single mask bit in the logic of
2382 ssl/ssl_ciph.c, the code for masking out disabled ciphers needs a
2383 kludge to work properly if AES128 is available and AES256 isn't.
2386 *) Expand security boundary to match 1.1.1 module.
2389 *) Remove redundant features: hash file source, editing of test vectors
2390 modify fipsld to use external fips_premain.c signature.
2393 *) New perl script mkfipsscr.pl to create shell scripts or batch files to
2394 run algorithm test programs.
2397 *) Make algorithm test programs more tolerant of whitespace.
2400 *) Have SSL/TLS server implementation tolerate "mismatched" record
2401 protocol version while receiving ClientHello even if the
2402 ClientHello is fragmented. (The server can't insist on the
2403 particular protocol version it has chosen before the ServerHello
2404 message has informed the client about his choice.)
2407 *) Load error codes if they are not already present instead of using a
2408 static variable. This allows them to be cleanly unloaded and reloaded.
2411 Changes between 0.9.7k and 0.9.7l [28 Sep 2006]
2413 *) Introduce limits to prevent malicious keys being able to
2414 cause a denial of service. (CVE-2006-2940)
2415 [Steve Henson, Bodo Moeller]
2417 *) Fix ASN.1 parsing of certain invalid structures that can result
2418 in a denial of service. (CVE-2006-2937) [Steve Henson]
2420 *) Fix buffer overflow in SSL_get_shared_ciphers() function.
2421 (CVE-2006-3738) [Tavis Ormandy and Will Drewry, Google Security Team]
2423 *) Fix SSL client code which could crash if connecting to a
2424 malicious SSLv2 server. (CVE-2006-4343)
2425 [Tavis Ormandy and Will Drewry, Google Security Team]
2427 *) Change ciphersuite string processing so that an explicit
2428 ciphersuite selects this one ciphersuite (so that "AES256-SHA"
2429 will no longer include "AES128-SHA"), and any other similar
2430 ciphersuite (same bitmap) from *other* protocol versions (so that
2431 "RC4-MD5" will still include both the SSL 2.0 ciphersuite and the
2432 SSL 3.0/TLS 1.0 ciphersuite). This is a backport combining
2433 changes from 0.9.8b and 0.9.8d.
2436 Changes between 0.9.7j and 0.9.7k [05 Sep 2006]
2438 *) Avoid PKCS #1 v1.5 signature attack discovered by Daniel Bleichenbacher
2439 (CVE-2006-4339) [Ben Laurie and Google Security Team]
2441 *) Change the Unix randomness entropy gathering to use poll() when
2442 possible instead of select(), since the latter has some
2443 undesirable limitations.
2444 [Darryl Miles via Richard Levitte and Bodo Moeller]
2446 *) Disable rogue ciphersuites:
2448 - SSLv2 0x08 0x00 0x80 ("RC4-64-MD5")
2449 - SSLv3/TLSv1 0x00 0x61 ("EXP1024-RC2-CBC-MD5")
2450 - SSLv3/TLSv1 0x00 0x60 ("EXP1024-RC4-MD5")
2452 The latter two were purportedly from
2453 draft-ietf-tls-56-bit-ciphersuites-0[01].txt, but do not really
2456 Also deactive the remaining ciphersuites from
2457 draft-ietf-tls-56-bit-ciphersuites-01.txt. These are just as
2458 unofficial, and the ID has long expired.
2461 *) Fix RSA blinding Heisenbug (problems sometimes occured on
2462 dual-core machines) and other potential thread-safety issues.
2465 Changes between 0.9.7i and 0.9.7j [04 May 2006]
2467 *) Adapt fipsld and the build system to link against the validated FIPS
2468 module in FIPS mode.
2471 *) Fixes for VC++ 2005 build under Windows.
2474 *) Add new Windows build target VC-32-GMAKE for VC++. This uses GNU make
2475 from a Windows bash shell such as MSYS. It is autodetected from the
2476 "config" script when run from a VC++ environment. Modify standard VC++
2477 build to use fipscanister.o from the GNU make build.
2480 Changes between 0.9.7h and 0.9.7i [14 Oct 2005]
2482 *) Wrapped the definition of EVP_MAX_MD_SIZE in a #ifdef OPENSSL_FIPS.
2483 The value now differs depending on if you build for FIPS or not.
2484 BEWARE! A program linked with a shared FIPSed libcrypto can't be
2485 safely run with a non-FIPSed libcrypto, as it may crash because of
2486 the difference induced by this change.
2489 Changes between 0.9.7g and 0.9.7h [11 Oct 2005]
2491 *) Remove the functionality of SSL_OP_MSIE_SSLV2_RSA_PADDING
2492 (part of SSL_OP_ALL). This option used to disable the
2493 countermeasure against man-in-the-middle protocol-version
2494 rollback in the SSL 2.0 server implementation, which is a bad
2495 idea. (CVE-2005-2969)
2497 [Bodo Moeller; problem pointed out by Yutaka Oiwa (Research Center
2498 for Information Security, National Institute of Advanced Industrial
2499 Science and Technology [AIST], Japan)]
2501 *) Minimal support for X9.31 signatures and PSS padding modes. This is
2502 mainly for FIPS compliance and not fully integrated at this stage.
2505 *) For DSA signing, unless DSA_FLAG_NO_EXP_CONSTTIME is set, perform
2506 the exponentiation using a fixed-length exponent. (Otherwise,
2507 the information leaked through timing could expose the secret key
2508 after many signatures; cf. Bleichenbacher's attack on DSA with
2512 *) Make a new fixed-window mod_exp implementation the default for
2513 RSA, DSA, and DH private-key operations so that the sequence of
2514 squares and multiplies and the memory access pattern are
2515 independent of the particular secret key. This will mitigate
2516 cache-timing and potential related attacks.
2518 BN_mod_exp_mont_consttime() is the new exponentiation implementation,
2519 and this is automatically used by BN_mod_exp_mont() if the new flag
2520 BN_FLG_EXP_CONSTTIME is set for the exponent. RSA, DSA, and DH
2521 will use this BN flag for private exponents unless the flag
2522 RSA_FLAG_NO_EXP_CONSTTIME, DSA_FLAG_NO_EXP_CONSTTIME, or
2523 DH_FLAG_NO_EXP_CONSTTIME, respectively, is set.
2525 [Matthew D Wood (Intel Corp), with some changes by Bodo Moeller]
2527 *) Change the client implementation for SSLv23_method() and
2528 SSLv23_client_method() so that is uses the SSL 3.0/TLS 1.0
2529 Client Hello message format if the SSL_OP_NO_SSLv2 option is set.
2530 (Previously, the SSL 2.0 backwards compatible Client Hello
2531 message format would be used even with SSL_OP_NO_SSLv2.)
2534 *) Add support for smime-type MIME parameter in S/MIME messages which some
2538 *) New function BN_MONT_CTX_set_locked() to set montgomery parameters in
2539 a threadsafe manner. Modify rsa code to use new function and add calls
2540 to dsa and dh code (which had race conditions before).
2543 *) Include the fixed error library code in the C error file definitions
2544 instead of fixing them up at runtime. This keeps the error code
2545 structures constant.
2548 Changes between 0.9.7f and 0.9.7g [11 Apr 2005]
2550 [NB: OpenSSL 0.9.7h and later 0.9.7 patch levels were released after
2553 *) Fixes for newer kerberos headers. NB: the casts are needed because
2554 the 'length' field is signed on one version and unsigned on another
2555 with no (?) obvious way to tell the difference, without these VC++
2556 complains. Also the "definition" of FAR (blank) is no longer included
2557 nor is the error ENOMEM. KRB5_PRIVATE has to be set to 1 to pick up
2558 some needed definitions.
2561 *) Undo Cygwin change.
2564 *) Added support for proxy certificates according to RFC 3820.
2565 Because they may be a security thread to unaware applications,
2566 they must be explicitely allowed in run-time. See
2567 docs/HOWTO/proxy_certificates.txt for further information.
2570 Changes between 0.9.7e and 0.9.7f [22 Mar 2005]
2572 *) Use (SSL_RANDOM_VALUE - 4) bytes of pseudo random data when generating
2573 server and client random values. Previously
2574 (SSL_RANDOM_VALUE - sizeof(time_t)) would be used which would result in
2575 less random data when sizeof(time_t) > 4 (some 64 bit platforms).
2577 This change has negligible security impact because:
2579 1. Server and client random values still have 24 bytes of pseudo random
2582 2. Server and client random values are sent in the clear in the initial
2585 3. The master secret is derived using the premaster secret (48 bytes in
2586 size for static RSA ciphersuites) as well as client server and random
2589 The OpenSSL team would like to thank the UK NISCC for bringing this issue
2592 [Stephen Henson, reported by UK NISCC]
2594 *) Use Windows randomness collection on Cygwin.
2597 *) Fix hang in EGD/PRNGD query when communication socket is closed
2598 prematurely by EGD/PRNGD.
2599 [Darren Tucker <dtucker@zip.com.au> via Lutz Jänicke, resolves #1014]
2601 *) Prompt for pass phrases when appropriate for PKCS12 input format.
2604 *) Back-port of selected performance improvements from development
2605 branch, as well as improved support for PowerPC platforms.
2608 *) Add lots of checks for memory allocation failure, error codes to indicate
2609 failure and freeing up memory if a failure occurs.
2610 [Nauticus Networks SSL Team <openssl@nauticusnet.com>, Steve Henson]
2612 *) Add new -passin argument to dgst.
2615 *) Perform some character comparisons of different types in X509_NAME_cmp:
2616 this is needed for some certificates that reencode DNs into UTF8Strings
2617 (in violation of RFC3280) and can't or wont issue name rollover
2621 *) Make an explicit check during certificate validation to see that
2622 the CA setting in each certificate on the chain is correct. As a
2623 side effect always do the following basic checks on extensions,
2624 not just when there's an associated purpose to the check:
2626 - if there is an unhandled critical extension (unless the user
2627 has chosen to ignore this fault)
2628 - if the path length has been exceeded (if one is set at all)
2629 - that certain extensions fit the associated purpose (if one has
2633 Changes between 0.9.7d and 0.9.7e [25 Oct 2004]
2635 *) Avoid a race condition when CRLs are checked in a multi threaded
2636 environment. This would happen due to the reordering of the revoked
2637 entries during signature checking and serial number lookup. Now the
2638 encoding is cached and the serial number sort performed under a lock.
2639 Add new STACK function sk_is_sorted().
2642 *) Add Delta CRL to the extension code.
2645 *) Various fixes to s3_pkt.c so alerts are sent properly.
2646 [David Holmes <d.holmes@f5.com>]
2648 *) Reduce the chances of duplicate issuer name and serial numbers (in
2649 violation of RFC3280) using the OpenSSL certificate creation utilities.
2650 This is done by creating a random 64 bit value for the initial serial
2651 number when a serial number file is created or when a self signed
2652 certificate is created using 'openssl req -x509'. The initial serial
2653 number file is created using 'openssl x509 -next_serial' in CA.pl
2654 rather than being initialized to 1.
2657 Changes between 0.9.7c and 0.9.7d [17 Mar 2004]
2659 *) Fix null-pointer assignment in do_change_cipher_spec() revealed
2660 by using the Codenomicon TLS Test Tool (CVE-2004-0079)
2661 [Joe Orton, Steve Henson]
2663 *) Fix flaw in SSL/TLS handshaking when using Kerberos ciphersuites
2665 [Joe Orton, Steve Henson]
2667 *) Make it possible to have multiple active certificates with the same
2668 subject in the CA index file. This is done only if the keyword
2669 'unique_subject' is set to 'no' in the main CA section (default
2670 if 'CA_default') of the configuration file. The value is saved
2671 with the database itself in a separate index attribute file,
2672 named like the index file with '.attr' appended to the name.
2675 *) X509 verify fixes. Disable broken certificate workarounds when
2676 X509_V_FLAGS_X509_STRICT is set. Check CRL issuer has cRLSign set if
2677 keyUsage extension present. Don't accept CRLs with unhandled critical
2678 extensions: since verify currently doesn't process CRL extensions this
2679 rejects a CRL with *any* critical extensions. Add new verify error codes
2683 *) When creating an OCSP nonce use an OCTET STRING inside the extnValue.
2684 A clarification of RFC2560 will require the use of OCTET STRINGs and
2685 some implementations cannot handle the current raw format. Since OpenSSL
2686 copies and compares OCSP nonces as opaque blobs without any attempt at
2687 parsing them this should not create any compatibility issues.
2690 *) New md flag EVP_MD_CTX_FLAG_REUSE this allows md_data to be reused when
2691 calling EVP_MD_CTX_copy_ex() to avoid calling OPENSSL_malloc(). Without
2692 this HMAC (and other) operations are several times slower than OpenSSL
2696 *) Print out GeneralizedTime and UTCTime in ASN1_STRING_print_ex().
2697 [Peter Sylvester <Peter.Sylvester@EdelWeb.fr>]
2699 *) Use the correct content when signing type "other".
2702 Changes between 0.9.7b and 0.9.7c [30 Sep 2003]
2704 *) Fix various bugs revealed by running the NISCC test suite:
2706 Stop out of bounds reads in the ASN1 code when presented with
2707 invalid tags (CVE-2003-0543 and CVE-2003-0544).
2709 Free up ASN1_TYPE correctly if ANY type is invalid (CVE-2003-0545).
2711 If verify callback ignores invalid public key errors don't try to check
2712 certificate signature with the NULL public key.
2716 *) New -ignore_err option in ocsp application to stop the server
2717 exiting on the first error in a request.
2720 *) In ssl3_accept() (ssl/s3_srvr.c) only accept a client certificate
2721 if the server requested one: as stated in TLS 1.0 and SSL 3.0
2725 *) In ssl3_get_client_hello() (ssl/s3_srvr.c), tolerate additional
2726 extra data after the compression methods not only for TLS 1.0
2727 but also for SSL 3.0 (as required by the specification).
2728 [Bodo Moeller; problem pointed out by Matthias Loepfe]
2730 *) Change X509_certificate_type() to mark the key as exported/exportable
2731 when it's 512 *bits* long, not 512 bytes.
2734 *) Change AES_cbc_encrypt() so it outputs exact multiple of
2735 blocks during encryption.
2738 *) Various fixes to base64 BIO and non blocking I/O. On write
2739 flushes were not handled properly if the BIO retried. On read
2740 data was not being buffered properly and had various logic bugs.
2741 This also affects blocking I/O when the data being decoded is a
2745 *) Various S/MIME bugfixes and compatibility changes:
2746 output correct application/pkcs7 MIME type if
2747 PKCS7_NOOLDMIMETYPE is set. Tolerate some broken signatures.
2748 Output CR+LF for EOL if PKCS7_CRLFEOL is set (this makes opening
2749 of files as .eml work). Correctly handle very long lines in MIME
2753 Changes between 0.9.7a and 0.9.7b [10 Apr 2003]
2755 *) Countermeasure against the Klima-Pokorny-Rosa extension of
2756 Bleichbacher's attack on PKCS #1 v1.5 padding: treat
2757 a protocol version number mismatch like a decryption error
2758 in ssl3_get_client_key_exchange (ssl/s3_srvr.c).
2761 *) Turn on RSA blinding by default in the default implementation
2762 to avoid a timing attack. Applications that don't want it can call
2763 RSA_blinding_off() or use the new flag RSA_FLAG_NO_BLINDING.
2764 They would be ill-advised to do so in most cases.
2765 [Ben Laurie, Steve Henson, Geoff Thorpe, Bodo Moeller]
2767 *) Change RSA blinding code so that it works when the PRNG is not
2768 seeded (in this case, the secret RSA exponent is abused as
2769 an unpredictable seed -- if it is not unpredictable, there
2770 is no point in blinding anyway). Make RSA blinding thread-safe
2771 by remembering the creator's thread ID in rsa->blinding and
2772 having all other threads use local one-time blinding factors
2773 (this requires more computation than sharing rsa->blinding, but
2774 avoids excessive locking; and if an RSA object is not shared
2775 between threads, blinding will still be very fast).
2778 *) Fixed a typo bug that would cause ENGINE_set_default() to set an
2779 ENGINE as defaults for all supported algorithms irrespective of
2780 the 'flags' parameter. 'flags' is now honoured, so applications
2781 should make sure they are passing it correctly.
2784 *) Target "mingw" now allows native Windows code to be generated in
2785 the Cygwin environment as well as with the MinGW compiler.
2788 Changes between 0.9.7 and 0.9.7a [19 Feb 2003]
2790 *) In ssl3_get_record (ssl/s3_pkt.c), minimize information leaked
2791 via timing by performing a MAC computation even if incorrrect
2792 block cipher padding has been found. This is a countermeasure
2793 against active attacks where the attacker has to distinguish
2794 between bad padding and a MAC verification error. (CVE-2003-0078)
2796 [Bodo Moeller; problem pointed out by Brice Canvel (EPFL),
2797 Alain Hiltgen (UBS), Serge Vaudenay (EPFL), and
2798 Martin Vuagnoux (EPFL, Ilion)]
2800 *) Make the no-err option work as intended. The intention with no-err
2801 is not to have the whole error stack handling routines removed from
2802 libcrypto, it's only intended to remove all the function name and
2803 reason texts, thereby removing some of the footprint that may not
2804 be interesting if those errors aren't displayed anyway.
2806 NOTE: it's still possible for any application or module to have it's
2807 own set of error texts inserted. The routines are there, just not
2808 used by default when no-err is given.
2811 *) Add support for FreeBSD on IA64.
2812 [dirk.meyer@dinoex.sub.org via Richard Levitte, resolves #454]
2814 *) Adjust DES_cbc_cksum() so it returns the same value as the MIT
2815 Kerberos function mit_des_cbc_cksum(). Before this change,
2816 the value returned by DES_cbc_cksum() was like the one from
2817 mit_des_cbc_cksum(), except the bytes were swapped.
2818 [Kevin Greaney <Kevin.Greaney@hp.com> and Richard Levitte]
2820 *) Allow an application to disable the automatic SSL chain building.
2821 Before this a rather primitive chain build was always performed in
2822 ssl3_output_cert_chain(): an application had no way to send the
2823 correct chain if the automatic operation produced an incorrect result.
2825 Now the chain builder is disabled if either:
2827 1. Extra certificates are added via SSL_CTX_add_extra_chain_cert().
2829 2. The mode flag SSL_MODE_NO_AUTO_CHAIN is set.
2831 The reasoning behind this is that an application would not want the
2832 auto chain building to take place if extra chain certificates are
2833 present and it might also want a means of sending no additional
2834 certificates (for example the chain has two certificates and the
2838 *) Add the possibility to build without the ENGINE framework.
2839 [Steven Reddie <smr@essemer.com.au> via Richard Levitte]
2841 *) Under Win32 gmtime() can return NULL: check return value in
2842 OPENSSL_gmtime(). Add error code for case where gmtime() fails.
2845 *) DSA routines: under certain error conditions uninitialized BN objects
2846 could be freed. Solution: make sure initialization is performed early
2847 enough. (Reported and fix supplied by Ivan D Nestlerode <nestler@MIT.EDU>,
2848 Nils Larsch <nla@trustcenter.de> via PR#459)
2851 *) Another fix for SSLv2 session ID handling: the session ID was incorrectly
2852 checked on reconnect on the client side, therefore session resumption
2853 could still fail with a "ssl session id is different" error. This
2854 behaviour is masked when SSL_OP_ALL is used due to
2855 SSL_OP_MICROSOFT_SESS_ID_BUG being set.
2856 Behaviour observed by Crispin Flowerday <crispin@flowerday.cx> as
2857 followup to PR #377.
2860 *) IA-32 assembler support enhancements: unified ELF targets, support
2861 for SCO/Caldera platforms, fix for Cygwin shared build.
2864 *) Add support for FreeBSD on sparc64. As a consequence, support for
2865 FreeBSD on non-x86 processors is separate from x86 processors on
2866 the config script, much like the NetBSD support.
2867 [Richard Levitte & Kris Kennaway <kris@obsecurity.org>]
2869 Changes between 0.9.6h and 0.9.7 [31 Dec 2002]
2871 [NB: OpenSSL 0.9.6i and later 0.9.6 patch levels were released after
2874 *) Fix session ID handling in SSLv2 client code: the SERVER FINISHED
2875 code (06) was taken as the first octet of the session ID and the last
2876 octet was ignored consequently. As a result SSLv2 client side session
2877 caching could not have worked due to the session ID mismatch between
2879 Behaviour observed by Crispin Flowerday <crispin@flowerday.cx> as
2883 *) Change the declaration of needed Kerberos libraries to use EX_LIBS
2884 instead of the special (and badly supported) LIBKRB5. LIBKRB5 is
2888 *) The hw_ncipher.c engine requires dynamic locks. Unfortunately, it
2889 seems that in spite of existing for more than a year, many application
2890 author have done nothing to provide the necessary callbacks, which
2891 means that this particular engine will not work properly anywhere.
2892 This is a very unfortunate situation which forces us, in the name
2893 of usability, to give the hw_ncipher.c a static lock, which is part
2895 NOTE: This is for the 0.9.7 series ONLY. This hack will never
2896 appear in 0.9.8 or later. We EXPECT application authors to have
2897 dealt properly with this when 0.9.8 is released (unless we actually
2898 make such changes in the libcrypto locking code that changes will
2899 have to be made anyway).
2902 *) In asn1_d2i_read_bio() repeatedly call BIO_read() until all content
2903 octets have been read, EOF or an error occurs. Without this change
2904 some truncated ASN1 structures will not produce an error.
2907 *) Disable Heimdal support, since it hasn't been fully implemented.
2908 Still give the possibility to force the use of Heimdal, but with
2909 warnings and a request that patches get sent to openssl-dev.
2912 *) Add the VC-CE target, introduce the WINCE sysname, and add
2913 INSTALL.WCE and appropriate conditionals to make it build.
2914 [Steven Reddie <smr@essemer.com.au> via Richard Levitte]
2916 *) Change the DLL names for Cygwin to cygcrypto-x.y.z.dll and
2917 cygssl-x.y.z.dll, where x, y and z are the major, minor and
2918 edit numbers of the version.
2919 [Corinna Vinschen <vinschen@redhat.com> and Richard Levitte]
2921 *) Introduce safe string copy and catenation functions
2922 (BUF_strlcpy() and BUF_strlcat()).
2923 [Ben Laurie (CHATS) and Richard Levitte]
2925 *) Avoid using fixed-size buffers for one-line DNs.
2926 [Ben Laurie (CHATS)]
2928 *) Add BUF_MEM_grow_clean() to avoid information leakage when
2929 resizing buffers containing secrets, and use where appropriate.
2930 [Ben Laurie (CHATS)]
2932 *) Avoid using fixed size buffers for configuration file location.
2933 [Ben Laurie (CHATS)]
2935 *) Avoid filename truncation for various CA files.
2936 [Ben Laurie (CHATS)]
2938 *) Use sizeof in preference to magic numbers.
2939 [Ben Laurie (CHATS)]
2941 *) Avoid filename truncation in cert requests.
2942 [Ben Laurie (CHATS)]
2944 *) Add assertions to check for (supposedly impossible) buffer
2946 [Ben Laurie (CHATS)]
2948 *) Don't cache truncated DNS entries in the local cache (this could
2949 potentially lead to a spoofing attack).
2950 [Ben Laurie (CHATS)]
2952 *) Fix various buffers to be large enough for hex/decimal
2953 representations in a platform independent manner.
2954 [Ben Laurie (CHATS)]
2956 *) Add CRYPTO_realloc_clean() to avoid information leakage when
2957 resizing buffers containing secrets, and use where appropriate.
2958 [Ben Laurie (CHATS)]
2960 *) Add BIO_indent() to avoid much slightly worrying code to do
2962 [Ben Laurie (CHATS)]
2964 *) Convert sprintf()/BIO_puts() to BIO_printf().
2965 [Ben Laurie (CHATS)]
2967 *) buffer_gets() could terminate with the buffer only half
2969 [Ben Laurie (CHATS)]
2971 *) Add assertions to prevent user-supplied crypto functions from
2972 overflowing internal buffers by having large block sizes, etc.
2973 [Ben Laurie (CHATS)]
2975 *) New OPENSSL_assert() macro (similar to assert(), but enabled
2977 [Ben Laurie (CHATS)]
2979 *) Eliminate unused copy of key in RC4.
2980 [Ben Laurie (CHATS)]
2982 *) Eliminate unused and incorrectly sized buffers for IV in pem.h.
2983 [Ben Laurie (CHATS)]
2985 *) Fix off-by-one error in EGD path.
2986 [Ben Laurie (CHATS)]
2988 *) If RANDFILE path is too long, ignore instead of truncating.
2989 [Ben Laurie (CHATS)]
2991 *) Eliminate unused and incorrectly sized X.509 structure
2993 [Ben Laurie (CHATS)]
2995 *) Eliminate unused and dangerous function knumber().
2996 [Ben Laurie (CHATS)]
2998 *) Eliminate unused and dangerous structure, KSSL_ERR.
2999 [Ben Laurie (CHATS)]
3001 *) Protect against overlong session ID context length in an encoded
3002 session object. Since these are local, this does not appear to be
3004 [Ben Laurie (CHATS)]
3006 *) Change from security patch (see 0.9.6e below) that did not affect
3007 the 0.9.6 release series:
3009 Remote buffer overflow in SSL3 protocol - an attacker could
3010 supply an oversized master key in Kerberos-enabled versions.
3012 [Ben Laurie (CHATS)]
3014 *) Change the SSL kerb5 codes to match RFC 2712.
3017 *) Make -nameopt work fully for req and add -reqopt switch.
3018 [Michael Bell <michael.bell@rz.hu-berlin.de>, Steve Henson]
3020 *) The "block size" for block ciphers in CFB and OFB mode should be 1.
3021 [Steve Henson, reported by Yngve Nysaeter Pettersen <yngve@opera.com>]
3023 *) Make sure tests can be performed even if the corresponding algorithms
3024 have been removed entirely. This was also the last step to make
3025 OpenSSL compilable with DJGPP under all reasonable conditions.
3026 [Richard Levitte, Doug Kaufman <dkaufman@rahul.net>]
3028 *) Add cipher selection rules COMPLEMENTOFALL and COMPLEMENTOFDEFAULT
3029 to allow version independent disabling of normally unselected ciphers,
3030 which may be activated as a side-effect of selecting a single cipher.
3032 (E.g., cipher list string "RSA" enables ciphersuites that are left
3033 out of "ALL" because they do not provide symmetric encryption.
3034 "RSA:!COMPLEMEMENTOFALL" avoids these unsafe ciphersuites.)
3035 [Lutz Jaenicke, Bodo Moeller]
3037 *) Add appropriate support for separate platform-dependent build
3038 directories. The recommended way to make a platform-dependent
3039 build directory is the following (tested on Linux), maybe with
3042 # Place yourself outside of the OpenSSL source tree. In
3043 # this example, the environment variable OPENSSL_SOURCE
3044 # is assumed to contain the absolute OpenSSL source directory.
3045 mkdir -p objtree/"`uname -s`-`uname -r`-`uname -m`"
3046 cd objtree/"`uname -s`-`uname -r`-`uname -m`"
3047 (cd $OPENSSL_SOURCE; find . -type f) | while read F; do
3048 mkdir -p `dirname $F`
3049 ln -s $OPENSSL_SOURCE/$F $F
3052 To be absolutely sure not to disturb the source tree, a "make clean"
3053 is a good thing. If it isn't successfull, don't worry about it,
3054 it probably means the source directory is very clean.
3057 *) Make sure any ENGINE control commands make local copies of string
3058 pointers passed to them whenever necessary. Otherwise it is possible
3059 the caller may have overwritten (or deallocated) the original string
3060 data when a later ENGINE operation tries to use the stored values.
3061 [Götz Babin-Ebell <babinebell@trustcenter.de>]
3063 *) Improve diagnostics in file reading and command-line digests.
3064 [Ben Laurie aided and abetted by Solar Designer <solar@openwall.com>]
3066 *) Add AES modes CFB and OFB to the object database. Correct an
3067 error in AES-CFB decryption.
3070 *) Remove most calls to EVP_CIPHER_CTX_cleanup() in evp_enc.c, this
3071 allows existing EVP_CIPHER_CTX structures to be reused after
3072 calling EVP_*Final(). This behaviour is used by encryption
3073 BIOs and some applications. This has the side effect that
3074 applications must explicitly clean up cipher contexts with
3075 EVP_CIPHER_CTX_cleanup() or they will leak memory.
3078 *) Check the values of dna and dnb in bn_mul_recursive before calling
3079 bn_mul_comba (a non zero value means the a or b arrays do not contain
3080 n2 elements) and fallback to bn_mul_normal if either is not zero.
3083 *) Fix escaping of non-ASCII characters when using the -subj option
3084 of the "openssl req" command line tool. (Robert Joop <joop@fokus.gmd.de>)
3087 *) Make object definitions compliant to LDAP (RFC2256): SN is the short
3088 form for "surname", serialNumber has no short form.
3089 Use "mail" as the short name for "rfc822Mailbox" according to RFC2798;
3090 therefore remove "mail" short name for "internet 7".
3091 The OID for unique identifiers in X509 certificates is
3092 x500UniqueIdentifier, not uniqueIdentifier.
3093 Some more OID additions. (Michael Bell <michael.bell@rz.hu-berlin.de>)
3096 *) Add an "init" command to the ENGINE config module and auto initialize
3097 ENGINEs. Without any "init" command the ENGINE will be initialized
3098 after all ctrl commands have been executed on it. If init=1 the
3099 ENGINE is initailized at that point (ctrls before that point are run
3100 on the uninitialized ENGINE and after on the initialized one). If
3101 init=0 then the ENGINE will not be iniatialized at all.
3104 *) Fix the 'app_verify_callback' interface so that the user-defined
3105 argument is actually passed to the callback: In the
3106 SSL_CTX_set_cert_verify_callback() prototype, the callback
3107 declaration has been changed from
3110 int (*cb)(X509_STORE_CTX *,void *);
3111 in ssl_verify_cert_chain (ssl/ssl_cert.c), the call
3112 i=s->ctx->app_verify_callback(&ctx)
3113 has been changed into
3114 i=s->ctx->app_verify_callback(&ctx, s->ctx->app_verify_arg).
3116 To update applications using SSL_CTX_set_cert_verify_callback(),
3117 a dummy argument can be added to their callback functions.
3118 [D. K. Smetters <smetters@parc.xerox.com>]
3120 *) Added the '4758cca' ENGINE to support IBM 4758 cards.
3121 [Maurice Gittens <maurice@gittens.nl>, touchups by Geoff Thorpe]
3123 *) Add and OPENSSL_LOAD_CONF define which will cause
3124 OpenSSL_add_all_algorithms() to load the openssl.cnf config file.
3125 This allows older applications to transparently support certain
3126 OpenSSL features: such as crypto acceleration and dynamic ENGINE loading.
3127 Two new functions OPENSSL_add_all_algorithms_noconf() which will never
3128 load the config file and OPENSSL_add_all_algorithms_conf() which will
3129 always load it have also been added.
3132 *) Add the OFB, CFB and CTR (all with 128 bit feedback) to AES.
3133 Adjust NIDs and EVP layer.
3134 [Stephen Sprunk <stephen@sprunk.org> and Richard Levitte]
3136 *) Config modules support in openssl utility.
3138 Most commands now load modules from the config file,
3139 though in a few (such as version) this isn't done
3140 because it couldn't be used for anything.
3142 In the case of ca and req the config file used is
3143 the same as the utility itself: that is the -config
3144 command line option can be used to specify an
3148 *) Move default behaviour from OPENSSL_config(). If appname is NULL
3149 use "openssl_conf" if filename is NULL use default openssl config file.
3152 *) Add an argument to OPENSSL_config() to allow the use of an alternative
3153 config section name. Add a new flag to tolerate a missing config file
3154 and move code to CONF_modules_load_file().
3157 *) Support for crypto accelerator cards from Accelerated Encryption
3158 Processing, www.aep.ie. (Use engine 'aep')
3159 The support was copied from 0.9.6c [engine] and adapted/corrected
3160 to work with the new engine framework.
3161 [AEP Inc. and Richard Levitte]
3163 *) Support for SureWare crypto accelerator cards from Baltimore
3164 Technologies. (Use engine 'sureware')
3165 The support was copied from 0.9.6c [engine] and adapted
3166 to work with the new engine framework.
3169 *) Have the CHIL engine fork-safe (as defined by nCipher) and actually
3170 make the newer ENGINE framework commands for the CHIL engine work.
3171 [Toomas Kiisk <vix@cyber.ee> and Richard Levitte]
3173 *) Make it possible to produce shared libraries on ReliantUNIX.
3174 [Robert Dahlem <Robert.Dahlem@ffm2.siemens.de> via Richard Levitte]
3176 *) Add the configuration target debug-linux-ppro.
3177 Make 'openssl rsa' use the general key loading routines
3178 implemented in apps.c, and make those routines able to
3179 handle the key format FORMAT_NETSCAPE and the variant
3181 [Toomas Kiisk <vix@cyber.ee> via Richard Levitte]
3183 *) Fix a crashbug and a logic bug in hwcrhk_load_pubkey().
3184 [Toomas Kiisk <vix@cyber.ee> via Richard Levitte]
3186 *) Add -keyform to rsautl, and document -engine.
3187 [Richard Levitte, inspired by Toomas Kiisk <vix@cyber.ee>]
3189 *) Change BIO_new_file (crypto/bio/bss_file.c) to use new
3190 BIO_R_NO_SUCH_FILE error code rather than the generic
3191 ERR_R_SYS_LIB error code if fopen() fails with ENOENT.
3194 *) Add new functions
3196 ERR_peek_last_error_line
3197 ERR_peek_last_error_line_data.
3198 These are similar to
3201 ERR_peek_error_line_data,
3202 but report on the latest error recorded rather than the first one
3203 still in the error queue.
3204 [Ben Laurie, Bodo Moeller]
3206 *) default_algorithms option in ENGINE config module. This allows things
3208 default_algorithms = ALL
3209 default_algorithms = RSA, DSA, RAND, CIPHERS, DIGESTS
3212 *) Prelminary ENGINE config module.
3215 *) New experimental application configuration code.
3218 *) Change the AES code to follow the same name structure as all other
3219 symmetric ciphers, and behave the same way. Move everything to
3220 the directory crypto/aes, thereby obsoleting crypto/rijndael.
3221 [Stephen Sprunk <stephen@sprunk.org> and Richard Levitte]
3223 *) SECURITY: remove unsafe setjmp/signal interaction from ui_openssl.c.
3224 [Ben Laurie and Theo de Raadt]
3226 *) Add option to output public keys in req command.
3227 [Massimiliano Pala madwolf@openca.org]
3229 *) Use wNAFs in EC_POINTs_mul() for improved efficiency
3230 (up to about 10% better than before for P-192 and P-224).
3233 *) New functions/macros
3235 SSL_CTX_set_msg_callback(ctx, cb)
3236 SSL_CTX_set_msg_callback_arg(ctx, arg)
3237 SSL_set_msg_callback(ssl, cb)
3238 SSL_set_msg_callback_arg(ssl, arg)
3240 to request calling a callback function
3242 void cb(int write_p, int version, int content_type,
3243 const void *buf, size_t len, SSL *ssl, void *arg)
3245 whenever a protocol message has been completely received
3246 (write_p == 0) or sent (write_p == 1). Here 'version' is the
3247 protocol version according to which the SSL library interprets
3248 the current protocol message (SSL2_VERSION, SSL3_VERSION, or
3249 TLS1_VERSION). 'content_type' is 0 in the case of SSL 2.0, or
3250 the content type as defined in the SSL 3.0/TLS 1.0 protocol
3251 specification (change_cipher_spec(20), alert(21), handshake(22)).
3252 'buf' and 'len' point to the actual message, 'ssl' to the
3253 SSL object, and 'arg' is the application-defined value set by
3254 SSL[_CTX]_set_msg_callback_arg().
3256 'openssl s_client' and 'openssl s_server' have new '-msg' options
3257 to enable a callback that displays all protocol messages.
3260 *) Change the shared library support so shared libraries are built as
3261 soon as the corresponding static library is finished, and thereby get
3262 openssl and the test programs linked against the shared library.
3263 This still only happens when the keyword "shard" has been given to
3264 the configuration scripts.
3266 NOTE: shared library support is still an experimental thing, and
3267 backward binary compatibility is still not guaranteed.
3268 ["Maciej W. Rozycki" <macro@ds2.pg.gda.pl> and Richard Levitte]
3270 *) Add support for Subject Information Access extension.
3271 [Peter Sylvester <Peter.Sylvester@EdelWeb.fr>]
3273 *) Make BUF_MEM_grow() behaviour more consistent: Initialise to zero
3274 additional bytes when new memory had to be allocated, not just
3275 when reusing an existing buffer.
3278 *) New command line and configuration option 'utf8' for the req command.
3279 This allows field values to be specified as UTF8 strings.
3282 *) Add -multi and -mr options to "openssl speed" - giving multiple parallel
3283 runs for the former and machine-readable output for the latter.
3286 *) Add '-noemailDN' option to 'openssl ca'. This prevents inclusion
3287 of the e-mail address in the DN (i.e., it will go into a certificate
3288 extension only). The new configuration file option 'email_in_dn = no'
3289 has the same effect.
3290 [Massimiliano Pala madwolf@openca.org]
3292 *) Change all functions with names starting with des_ to be starting
3293 with DES_ instead. Add wrappers that are compatible with libdes,
3294 but are named _ossl_old_des_*. Finally, add macros that map the
3295 des_* symbols to the corresponding _ossl_old_des_* if libdes
3296 compatibility is desired. If OpenSSL 0.9.6c compatibility is
3297 desired, the des_* symbols will be mapped to DES_*, with one
3300 Since we provide two compatibility mappings, the user needs to
3301 define the macro OPENSSL_DES_LIBDES_COMPATIBILITY if libdes
3302 compatibility is desired. The default (i.e., when that macro
3303 isn't defined) is OpenSSL 0.9.6c compatibility.
3305 There are also macros that enable and disable the support of old
3306 des functions altogether. Those are OPENSSL_ENABLE_OLD_DES_SUPPORT
3307 and OPENSSL_DISABLE_OLD_DES_SUPPORT. If none or both of those
3308 are defined, the default will apply: to support the old des routines.
3310 In either case, one must include openssl/des.h to get the correct
3311 definitions. Do not try to just include openssl/des_old.h, that
3314 NOTE: This is a major break of an old API into a new one. Software
3315 authors are encouraged to switch to the DES_ style functions. Some
3316 time in the future, des_old.h and the libdes compatibility functions
3317 will be disable (i.e. OPENSSL_DISABLE_OLD_DES_SUPPORT will be the
3318 default), and then completely removed.
3321 *) Test for certificates which contain unsupported critical extensions.
3322 If such a certificate is found during a verify operation it is
3323 rejected by default: this behaviour can be overridden by either
3324 handling the new error X509_V_ERR_UNHANDLED_CRITICAL_EXTENSION or
3325 by setting the verify flag X509_V_FLAG_IGNORE_CRITICAL. A new function
3326 X509_supported_extension() has also been added which returns 1 if a
3327 particular extension is supported.
3330 *) Modify the behaviour of EVP cipher functions in similar way to digests
3331 to retain compatibility with existing code.
3334 *) Modify the behaviour of EVP_DigestInit() and EVP_DigestFinal() to retain
3335 compatibility with existing code. In particular the 'ctx' parameter does
3336 not have to be to be initialized before the call to EVP_DigestInit() and
3337 it is tidied up after a call to EVP_DigestFinal(). New function
3338 EVP_DigestFinal_ex() which does not tidy up the ctx. Similarly function
3339 EVP_MD_CTX_copy() changed to not require the destination to be
3340 initialized valid and new function EVP_MD_CTX_copy_ex() added which
3341 requires the destination to be valid.
3343 Modify all the OpenSSL digest calls to use EVP_DigestInit_ex(),
3344 EVP_DigestFinal_ex() and EVP_MD_CTX_copy_ex().
3347 *) Change ssl3_get_message (ssl/s3_both.c) and the functions using it
3348 so that complete 'Handshake' protocol structures are kept in memory
3349 instead of overwriting 'msg_type' and 'length' with 'body' data.
3352 *) Add an implementation of SSL_add_dir_cert_subjects_to_stack for Win32.
3353 [Massimo Santin via Richard Levitte]
3355 *) Major restructuring to the underlying ENGINE code. This includes
3356 reduction of linker bloat, separation of pure "ENGINE" manipulation
3357 (initialisation, etc) from functionality dealing with implementations
3358 of specific crypto iterfaces. This change also introduces integrated
3359 support for symmetric ciphers and digest implementations - so ENGINEs
3360 can now accelerate these by providing EVP_CIPHER and EVP_MD
3361 implementations of their own. This is detailed in crypto/engine/README
3362 as it couldn't be adequately described here. However, there are a few
3363 API changes worth noting - some RSA, DSA, DH, and RAND functions that
3364 were changed in the original introduction of ENGINE code have now
3365 reverted back - the hooking from this code to ENGINE is now a good
3366 deal more passive and at run-time, operations deal directly with
3367 RSA_METHODs, DSA_METHODs (etc) as they did before, rather than
3368 dereferencing through an ENGINE pointer any more. Also, the ENGINE
3369 functions dealing with BN_MOD_EXP[_CRT] handlers have been removed -
3370 they were not being used by the framework as there is no concept of a
3371 BIGNUM_METHOD and they could not be generalised to the new
3372 'ENGINE_TABLE' mechanism that underlies the new code. Similarly,
3373 ENGINE_cpy() has been removed as it cannot be consistently defined in
3377 *) Change ASN1_GENERALIZEDTIME_check() to allow fractional seconds.
3380 *) Change mkdef.pl to sort symbols that get the same entry number,
3381 and make sure the automatically generated functions ERR_load_*
3382 become part of libeay.num as well.
3385 *) New function SSL_renegotiate_pending(). This returns true once
3386 renegotiation has been requested (either SSL_renegotiate() call
3387 or HelloRequest/ClientHello receveived from the peer) and becomes
3388 false once a handshake has been completed.
3389 (For servers, SSL_renegotiate() followed by SSL_do_handshake()
3390 sends a HelloRequest, but does not ensure that a handshake takes
3391 place. SSL_renegotiate_pending() is useful for checking if the
3392 client has followed the request.)
3395 *) New SSL option SSL_OP_NO_SESSION_RESUMPTION_ON_RENEGOTIATION.
3396 By default, clients may request session resumption even during
3397 renegotiation (if session ID contexts permit); with this option,
3398 session resumption is possible only in the first handshake.
3400 SSL_OP_ALL is now 0x00000FFFL instead of 0x000FFFFFL. This makes
3401 more bits available for options that should not be part of
3402 SSL_OP_ALL (such as SSL_OP_NO_SESSION_RESUMPTION_ON_RENEGOTIATION).
3405 *) Add some demos for certificate and certificate request creation.
3408 *) Make maximum certificate chain size accepted from the peer application
3409 settable (SSL*_get/set_max_cert_list()), as proposed by
3410 "Douglas E. Engert" <deengert@anl.gov>.
3413 *) Add support for shared libraries for Unixware-7
3414 (Boyd Lynn Gerber <gerberb@zenez.com>).
3417 *) Add a "destroy" handler to ENGINEs that allows structural cleanup to
3418 be done prior to destruction. Use this to unload error strings from
3419 ENGINEs that load their own error strings. NB: This adds two new API
3420 functions to "get" and "set" this destroy handler in an ENGINE.
3423 *) Alter all existing ENGINE implementations (except "openssl" and
3424 "openbsd") to dynamically instantiate their own error strings. This
3425 makes them more flexible to be built both as statically-linked ENGINEs
3426 and self-contained shared-libraries loadable via the "dynamic" ENGINE.
3427 Also, add stub code to each that makes building them as self-contained
3428 shared-libraries easier (see README.ENGINE).
3431 *) Add a "dynamic" ENGINE that provides a mechanism for binding ENGINE
3432 implementations into applications that are completely implemented in
3433 self-contained shared-libraries. The "dynamic" ENGINE exposes control
3434 commands that can be used to configure what shared-library to load and
3435 to control aspects of the way it is handled. Also, made an update to
3436 the README.ENGINE file that brings its information up-to-date and
3437 provides some information and instructions on the "dynamic" ENGINE
3438 (ie. how to use it, how to build "dynamic"-loadable ENGINEs, etc).
3441 *) Make it possible to unload ranges of ERR strings with a new
3442 "ERR_unload_strings" function.
3445 *) Add a copy() function to EVP_MD.
3448 *) Make EVP_MD routines take a context pointer instead of just the
3449 md_data void pointer.
3452 *) Add flags to EVP_MD and EVP_MD_CTX. EVP_MD_FLAG_ONESHOT indicates
3453 that the digest can only process a single chunk of data
3454 (typically because it is provided by a piece of
3455 hardware). EVP_MD_CTX_FLAG_ONESHOT indicates that the application
3456 is only going to provide a single chunk of data, and hence the
3457 framework needn't accumulate the data for oneshot drivers.
3460 *) As with "ERR", make it possible to replace the underlying "ex_data"
3461 functions. This change also alters the storage and management of global
3462 ex_data state - it's now all inside ex_data.c and all "class" code (eg.
3463 RSA, BIO, SSL_CTX, etc) no longer stores its own STACKS and per-class
3464 index counters. The API functions that use this state have been changed
3465 to take a "class_index" rather than pointers to the class's local STACK
3466 and counter, and there is now an API function to dynamically create new
3467 classes. This centralisation allows us to (a) plug a lot of the
3468 thread-safety problems that existed, and (b) makes it possible to clean
3469 up all allocated state using "CRYPTO_cleanup_all_ex_data()". W.r.t. (b)
3470 such data would previously have always leaked in application code and
3471 workarounds were in place to make the memory debugging turn a blind eye
3472 to it. Application code that doesn't use this new function will still
3473 leak as before, but their memory debugging output will announce it now
3474 rather than letting it slide.
3476 Besides the addition of CRYPTO_cleanup_all_ex_data(), another API change
3477 induced by the "ex_data" overhaul is that X509_STORE_CTX_init() now
3478 has a return value to indicate success or failure.
3481 *) Make it possible to replace the underlying "ERR" functions such that the
3482 global state (2 LHASH tables and 2 locks) is only used by the "default"
3483 implementation. This change also adds two functions to "get" and "set"
3484 the implementation prior to it being automatically set the first time
3485 any other ERR function takes place. Ie. an application can call "get",
3486 pass the return value to a module it has just loaded, and that module
3487 can call its own "set" function using that value. This means the
3488 module's "ERR" operations will use (and modify) the error state in the
3489 application and not in its own statically linked copy of OpenSSL code.
3492 *) Give DH, DSA, and RSA types their own "**_up_ref()" function to increment
3493 reference counts. This performs normal REF_PRINT/REF_CHECK macros on
3494 the operation, and provides a more encapsulated way for external code
3495 (crypto/evp/ and ssl/) to do this. Also changed the evp and ssl code
3496 to use these functions rather than manually incrementing the counts.
3498 Also rename "DSO_up()" function to more descriptive "DSO_up_ref()".
3501 *) Add EVP test program.
3504 *) Add symmetric cipher support to ENGINE. Expect the API to change!
3507 *) New CRL functions: X509_CRL_set_version(), X509_CRL_set_issuer_name()
3508 X509_CRL_set_lastUpdate(), X509_CRL_set_nextUpdate(), X509_CRL_sort(),
3509 X509_REVOKED_set_serialNumber(), and X509_REVOKED_set_revocationDate().
3510 These allow a CRL to be built without having to access X509_CRL fields
3511 directly. Modify 'ca' application to use new functions.
3514 *) Move SSL_OP_TLS_ROLLBACK_BUG out of the SSL_OP_ALL list of recommended
3515 bug workarounds. Rollback attack detection is a security feature.
3516 The problem will only arise on OpenSSL servers when TLSv1 is not
3517 available (sslv3_server_method() or SSL_OP_NO_TLSv1).
3518 Software authors not wanting to support TLSv1 will have special reasons
3519 for their choice and can explicitly enable this option.
3520 [Bodo Moeller, Lutz Jaenicke]
3522 *) Rationalise EVP so it can be extended: don't include a union of
3523 cipher/digest structures, add init/cleanup functions for EVP_MD_CTX
3524 (similar to those existing for EVP_CIPHER_CTX).
3529 EVP_MD_CTX_init(&md); /* new function call */
3530 EVP_DigestInit(&md, EVP_sha1());
3531 EVP_DigestUpdate(&md, in, len);
3532 EVP_DigestFinal(&md, out, NULL);
3533 EVP_MD_CTX_cleanup(&md); /* new function call */
3537 *) Make DES key schedule conform to the usual scheme, as well as
3538 correcting its structure. This means that calls to DES functions
3539 now have to pass a pointer to a des_key_schedule instead of a
3540 plain des_key_schedule (which was actually always a pointer
3543 des_key_schedule ks;
3545 des_set_key_checked(..., &ks);
3546 des_ncbc_encrypt(..., &ks, ...);
3548 (Note that a later change renames 'des_...' into 'DES_...'.)
3551 *) Initial reduction of linker bloat: the use of some functions, such as
3552 PEM causes large amounts of unused functions to be linked in due to
3553 poor organisation. For example pem_all.c contains every PEM function
3554 which has a knock on effect of linking in large amounts of (unused)
3555 ASN1 code. Grouping together similar functions and splitting unrelated
3556 functions prevents this.
3559 *) Cleanup of EVP macros.
3562 *) Change historical references to {NID,SN,LN}_des_ede and ede3 to add the
3563 correct _ecb suffix.
3566 *) Add initial OCSP responder support to ocsp application. The
3567 revocation information is handled using the text based index
3568 use by the ca application. The responder can either handle
3569 requests generated internally, supplied in files (for example
3570 via a CGI script) or using an internal minimal server.
3573 *) Add configuration choices to get zlib compression for TLS.
3576 *) Changes to Kerberos SSL for RFC 2712 compliance:
3577 1. Implemented real KerberosWrapper, instead of just using
3578 KRB5 AP_REQ message. [Thanks to Simon Wilkinson <sxw@sxw.org.uk>]
3579 2. Implemented optional authenticator field of KerberosWrapper.
3581 Added openssl-style ASN.1 macros for Kerberos ticket, ap_req,
3582 and authenticator structs; see crypto/krb5/.
3584 Generalized Kerberos calls to support multiple Kerberos libraries.
3585 [Vern Staats <staatsvr@asc.hpc.mil>,
3586 Jeffrey Altman <jaltman@columbia.edu>
3587 via Richard Levitte]
3589 *) Cause 'openssl speed' to use fully hard-coded DSA keys as it
3590 already does with RSA. testdsa.h now has 'priv_key/pub_key'
3591 values for each of the key sizes rather than having just
3592 parameters (and 'speed' generating keys each time).
3595 *) Speed up EVP routines.
3598 type 8 bytes 64 bytes 256 bytes 1024 bytes 8192 bytes
3599 des-cbc 4408.85k 5560.51k 5778.46k 5862.20k 5825.16k
3600 des-cbc 4389.55k 5571.17k 5792.23k 5846.91k 5832.11k
3601 des-cbc 4394.32k 5575.92k 5807.44k 5848.37k 5841.30k
3603 des-cbc 3482.66k 5069.49k 5496.39k 5614.16k 5639.28k
3604 des-cbc 3480.74k 5068.76k 5510.34k 5609.87k 5635.52k
3605 des-cbc 3483.72k 5067.62k 5504.60k 5708.01k 5724.80k
3608 des-cbc 4660.16k 5650.19k 5807.19k 5827.13k 5783.32k
3610 des-cbc 3624.96k 5258.21k 5530.91k 5624.30k 5628.26k
3613 *) Added the OS2-EMX target.
3614 ["Brian Havard" <brianh@kheldar.apana.org.au> and Richard Levitte]
3616 *) Rewrite apps to use NCONF routines instead of the old CONF. New functions
3617 to support NCONF routines in extension code. New function CONF_set_nconf()
3618 to allow functions which take an NCONF to also handle the old LHASH
3619 structure: this means that the old CONF compatible routines can be
3620 retained (in particular wrt extensions) without having to duplicate the
3621 code. New function X509V3_add_ext_nconf_sk to add extensions to a stack.
3624 *) Enhance the general user interface with mechanisms for inner control
3625 and with possibilities to have yes/no kind of prompts.
3628 *) Change all calls to low level digest routines in the library and
3629 applications to use EVP. Add missing calls to HMAC_cleanup() and
3630 don't assume HMAC_CTX can be copied using memcpy().
3631 [Verdon Walker <VWalker@novell.com>, Steve Henson]
3633 *) Add the possibility to control engines through control names but with
3634 arbitrary arguments instead of just a string.
3635 Change the key loaders to take a UI_METHOD instead of a callback
3636 function pointer. NOTE: this breaks binary compatibility with earlier
3637 versions of OpenSSL [engine].
3638 Adapt the nCipher code for these new conditions and add a card insertion
3642 *) Enhance the general user interface with mechanisms to better support
3643 dialog box interfaces, application-defined prompts, the possibility
3644 to use defaults (for example default passwords from somewhere else)
3645 and interrupts/cancellations.
3648 *) Tidy up PKCS#12 attribute handling. Add support for the CSP name
3649 attribute in PKCS#12 files, add new -CSP option to pkcs12 utility.
3652 *) Fix a memory leak in 'sk_dup()' in the case reallocation fails. (Also
3653 tidy up some unnecessarily weird code in 'sk_new()').
3654 [Geoff, reported by Diego Tartara <dtartara@novamens.com>]
3656 *) Change the key loading routines for ENGINEs to use the same kind
3657 callback (pem_password_cb) as all other routines that need this
3661 *) Increase ENTROPY_NEEDED to 32 bytes, as Rijndael can operate with
3662 256 bit (=32 byte) keys. Of course seeding with more entropy bytes
3663 than this minimum value is recommended.
3666 *) New random seeder for OpenVMS, using the system process statistics
3667 that are easily reachable.
3670 *) Windows apparently can't transparently handle global
3671 variables defined in DLLs. Initialisations such as:
3673 const ASN1_ITEM *it = &ASN1_INTEGER_it;
3675 wont compile. This is used by the any applications that need to
3676 declare their own ASN1 modules. This was fixed by adding the option
3677 EXPORT_VAR_AS_FN to all Win32 platforms, although this isn't strictly
3678 needed for static libraries under Win32.
3681 *) New functions X509_PURPOSE_set() and X509_TRUST_set() to handle
3682 setting of purpose and trust fields. New X509_STORE trust and
3683 purpose functions and tidy up setting in other SSL functions.
3686 *) Add copies of X509_STORE_CTX fields and callbacks to X509_STORE
3687 structure. These are inherited by X509_STORE_CTX when it is
3688 initialised. This allows various defaults to be set in the
3689 X509_STORE structure (such as flags for CRL checking and custom
3690 purpose or trust settings) for functions which only use X509_STORE_CTX
3691 internally such as S/MIME.
3693 Modify X509_STORE_CTX_purpose_inherit() so it only sets purposes and
3694 trust settings if they are not set in X509_STORE. This allows X509_STORE
3695 purposes and trust (in S/MIME for example) to override any set by default.
3697 Add command line options for CRL checking to smime, s_client and s_server
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