5 Changes between 0.9.8j and 0.9.9 [xx XXX xxxx]
7 *) Delta CRL support. New use deltas option which will attempt to locate
8 and search any appropriate delta CRLs available.
10 This work was sponsored by Google.
13 *) Support for CRLs partitioned by reason code. Reorganise CRL processing
14 code and add additional score elements. Validate alternate CRL paths
15 as part of the CRL checking and indicate a new error "CRL path validation
16 error" in this case. Applications wanting additional details can use
17 the verify callback and check the new "parent" field. If this is not
18 NULL CRL path validation is taking place. Existing applications wont
19 see this because it requires extended CRL support which is off by
22 This work was sponsored by Google.
25 *) Support for freshest CRL extension.
27 This work was sponsored by Google.
30 *) Initial indirect CRL support. Currently only supported in the CRLs
31 passed directly and not via lookup. Process certificate issuer
32 CRL entry extension and lookup CRL entries by bother issuer name
33 and serial number. Check and process CRL issuer entry in IDP extension.
35 This work was sponsored by Google.
38 *) Add support for distinct certificate and CRL paths. The CRL issuer
39 certificate is validated separately in this case. Only enabled if
40 an extended CRL support flag is set: this flag will enable additional
41 CRL functionality in future.
43 This work was sponsored by Google.
46 *) Add support for policy mappings extension.
48 This work was sponsored by Google.
51 *) Fixes to pathlength constraint, self issued certificate handling,
52 policy processing to align with RFC3280 and PKITS tests.
54 This work was sponsored by Google.
57 *) Support for name constraints certificate extension. DN, email, DNS
58 and URI types are currently supported.
60 This work was sponsored by Google.
63 *) To cater for systems that provide a pointer-based thread ID rather
64 than numeric, deprecate the current numeric thread ID mechanism and
65 replace it with a structure and associated callback type. This
66 mechanism allows a numeric "hash" to be extracted from a thread ID in
67 either case, and on platforms where pointers are larger than 'long',
68 mixing is done to help ensure the numeric 'hash' is usable even if it
69 can't be guaranteed unique. The default mechanism is to use "&errno"
70 as a pointer-based thread ID to distinguish between threads.
72 Applications that want to provide their own thread IDs should now use
73 CRYPTO_THREADID_set_callback() to register a callback that will call
74 either CRYPTO_THREADID_set_numeric() or CRYPTO_THREADID_set_pointer().
76 Note that ERR_remove_state() is now deprecated, because it is tied
77 to the assumption that thread IDs are numeric. ERR_remove_state(0)
78 to free the current thread's error state should be replaced by
79 ERR_remove_thread_state(NULL).
81 (This new approach replaces the functions CRYPTO_set_idptr_callback(),
82 CRYPTO_get_idptr_callback(), and CRYPTO_thread_idptr() that existed in
83 OpenSSL 0.9.9-dev between June 2006 and August 2008. Also, if an
84 application was previously providing a numeric thread callback that
85 was inappropriate for distinguishing threads, then uniqueness might
86 have been obtained with &errno that happened immediately in the
87 intermediate development versions of OpenSSL; this is no longer the
88 case, the numeric thread callback will now override the automatic use
90 [Geoff Thorpe, with help from Bodo Moeller]
92 *) Initial support for different CRL issuing certificates. This covers a
93 simple case where the self issued certificates in the chain exist and
94 the real CRL issuer is higher in the existing chain.
96 This work was sponsored by Google.
99 *) Removed effectively defunct crypto/store from the build.
102 *) Revamp of STACK to provide stronger type-checking. Still to come:
103 TXT_DB, bsearch(?), OBJ_bsearch, qsort, CRYPTO_EX_DATA, ASN1_VALUE,
104 ASN1_STRING, CONF_VALUE.
107 *) Add a new SSL_MODE_RELEASE_BUFFERS mode flag to release unused buffer
108 RAM on SSL connections. This option can save about 34k per idle SSL.
111 *) Revamp of LHASH to provide stronger type-checking. Still to come:
112 STACK, TXT_DB, bsearch, qsort.
115 *) Initial support for Cryptographic Message Syntax (aka CMS) based
116 on RFC3850, RFC3851 and RFC3852. New cms directory and cms utility,
117 support for data, signedData, compressedData, digestedData and
118 encryptedData, envelopedData types included. Scripts to check against
119 RFC4134 examples draft and interop and consistency checks of many
120 content types and variants.
123 *) Add options to enc utility to support use of zlib compression BIO.
126 *) Extend mk1mf to support importing of options and assembly language
127 files from Configure script, currently only included in VC-WIN32.
128 The assembly language rules can now optionally generate the source
129 files from the associated perl scripts.
132 *) Implement remaining functionality needed to support GOST ciphersuites.
133 Interop testing has been performed using CryptoPro implementations.
134 [Victor B. Wagner <vitus@cryptocom.ru>]
136 *) s390x assembler pack.
139 *) ARMv4 assembler pack. ARMv4 refers to v4 and later ISA, not CPU
143 *) Implement Opaque PRF Input TLS extension as specified in
144 draft-rescorla-tls-opaque-prf-input-00.txt. Since this is not an
145 official specification yet and no extension type assignment by
146 IANA exists, this extension (for now) will have to be explicitly
147 enabled when building OpenSSL by providing the extension number
148 to use. For example, specify an option
150 -DTLSEXT_TYPE_opaque_prf_input=0x9527
152 to the "config" or "Configure" script to enable the extension,
153 assuming extension number 0x9527 (which is a completely arbitrary
154 and unofficial assignment based on the MD5 hash of the Internet
155 Draft). Note that by doing so, you potentially lose
156 interoperability with other TLS implementations since these might
157 be using the same extension number for other purposes.
159 SSL_set_tlsext_opaque_prf_input(ssl, src, len) is used to set the
160 opaque PRF input value to use in the handshake. This will create
161 an interal copy of the length-'len' string at 'src', and will
162 return non-zero for success.
164 To get more control and flexibility, provide a callback function
167 SSL_CTX_set_tlsext_opaque_prf_input_callback(ctx, cb)
168 SSL_CTX_set_tlsext_opaque_prf_input_callback_arg(ctx, arg)
172 int (*cb)(SSL *, void *peerinput, size_t len, void *arg);
175 Callback function 'cb' will be called in handshakes, and is
176 expected to use SSL_set_tlsext_opaque_prf_input() as appropriate.
177 Argument 'arg' is for application purposes (the value as given to
178 SSL_CTX_set_tlsext_opaque_prf_input_callback_arg() will directly
179 be provided to the callback function). The callback function
180 has to return non-zero to report success: usually 1 to use opaque
181 PRF input just if possible, or 2 to enforce use of the opaque PRF
182 input. In the latter case, the library will abort the handshake
183 if opaque PRF input is not successfully negotiated.
185 Arguments 'peerinput' and 'len' given to the callback function
186 will always be NULL and 0 in the case of a client. A server will
187 see the client's opaque PRF input through these variables if
188 available (NULL and 0 otherwise). Note that if the server
189 provides an opaque PRF input, the length must be the same as the
190 length of the client's opaque PRF input.
192 Note that the callback function will only be called when creating
193 a new session (session resumption can resume whatever was
194 previously negotiated), and will not be called in SSL 2.0
195 handshakes; thus, SSL_CTX_set_options(ctx, SSL_OP_NO_SSLv2) or
196 SSL_set_options(ssl, SSL_OP_NO_SSLv2) is especially recommended
197 for applications that need to enforce opaque PRF input.
201 *) Update ssl code to support digests other than SHA1+MD5 for handshake
204 [Victor B. Wagner <vitus@cryptocom.ru>]
206 *) Add RFC4507 support to OpenSSL. This includes the corrections in
207 RFC4507bis. The encrypted ticket format is an encrypted encoded
208 SSL_SESSION structure, that way new session features are automatically
211 If a client application caches session in an SSL_SESSION structure
212 support is transparent because tickets are now stored in the encoded
215 The SSL_CTX structure automatically generates keys for ticket
216 protection in servers so again support should be possible
217 with no application modification.
219 If a client or server wishes to disable RFC4507 support then the option
220 SSL_OP_NO_TICKET can be set.
222 Add a TLS extension debugging callback to allow the contents of any client
223 or server extensions to be examined.
225 This work was sponsored by Google.
228 *) Final changes to avoid use of pointer pointer casts in OpenSSL.
229 OpenSSL should now compile cleanly on gcc 4.2
230 [Peter Hartley <pdh@utter.chaos.org.uk>, Steve Henson]
232 *) Update SSL library to use new EVP_PKEY MAC API. Include generic MAC
233 support including streaming MAC support: this is required for GOST
235 [Victor B. Wagner <vitus@cryptocom.ru>, Steve Henson]
237 *) Add option -stream to use PKCS#7 streaming in smime utility. New
238 function i2d_PKCS7_bio_stream() and PEM_write_PKCS7_bio_stream()
239 to output in BER and PEM format.
242 *) Experimental support for use of HMAC via EVP_PKEY interface. This
243 allows HMAC to be handled via the EVP_DigestSign*() interface. The
244 EVP_PKEY "key" in this case is the HMAC key, potentially allowing
245 ENGINE support for HMAC keys which are unextractable. New -mac and
246 -macopt options to dgst utility.
249 *) New option -sigopt to dgst utility. Update dgst to use
250 EVP_Digest{Sign,Verify}*. These two changes make it possible to use
251 alternative signing paramaters such as X9.31 or PSS in the dgst
255 *) Change ssl_cipher_apply_rule(), the internal function that does
256 the work each time a ciphersuite string requests enabling
257 ("foo+bar"), moving ("+foo+bar"), disabling ("-foo+bar", or
258 removing ("!foo+bar") a class of ciphersuites: Now it maintains
259 the order of disabled ciphersuites such that those ciphersuites
260 that most recently went from enabled to disabled not only stay
261 in order with respect to each other, but also have higher priority
262 than other disabled ciphersuites the next time ciphersuites are
265 This means that you can now say, e.g., "PSK:-PSK:HIGH" to enable
266 the same ciphersuites as with "HIGH" alone, but in a specific
267 order where the PSK ciphersuites come first (since they are the
268 most recently disabled ciphersuites when "HIGH" is parsed).
270 Also, change ssl_create_cipher_list() (using this new
271 funcionality) such that between otherwise identical
272 cihpersuites, ephemeral ECDH is preferred over ephemeral DH in
276 *) Change ssl_create_cipher_list() so that it automatically
277 arranges the ciphersuites in reasonable order before starting
278 to process the rule string. Thus, the definition for "DEFAULT"
279 (SSL_DEFAULT_CIPHER_LIST) now is just "ALL:!aNULL:!eNULL", but
280 remains equivalent to "AES:ALL:!aNULL:!eNULL:+aECDH:+kRSA:+RC4:@STRENGTH".
281 This makes it much easier to arrive at a reasonable default order
282 in applications for which anonymous ciphers are OK (meaning
283 that you can't actually use DEFAULT).
284 [Bodo Moeller; suggested by Victor Duchovni]
286 *) Split the SSL/TLS algorithm mask (as used for ciphersuite string
287 processing) into multiple integers instead of setting
288 "SSL_MKEY_MASK" bits, "SSL_AUTH_MASK" bits, "SSL_ENC_MASK",
289 "SSL_MAC_MASK", and "SSL_SSL_MASK" bits all in a single integer.
290 (These masks as well as the individual bit definitions are hidden
291 away into the non-exported interface ssl/ssl_locl.h, so this
292 change to the definition of the SSL_CIPHER structure shouldn't
293 affect applications.) This give us more bits for each of these
294 categories, so there is no longer a need to coagulate AES128 and
295 AES256 into a single algorithm bit, and to coagulate Camellia128
296 and Camellia256 into a single algorithm bit, which has led to all
299 Thus, among other things, the kludge introduced in 0.9.7m and
300 0.9.8e for masking out AES256 independently of AES128 or masking
301 out Camellia256 independently of AES256 is not needed here in 0.9.9.
303 With the change, we also introduce new ciphersuite aliases that
304 so far were missing: "AES128", "AES256", "CAMELLIA128", and
308 *) Add support for dsa-with-SHA224 and dsa-with-SHA256.
309 Use the leftmost N bytes of the signature input if the input is
310 larger than the prime q (with N being the size in bytes of q).
313 *) Very *very* experimental PKCS#7 streaming encoder support. Nothing uses
314 it yet and it is largely untested.
317 *) Add support for the ecdsa-with-SHA224/256/384/512 signature types.
320 *) Initial incomplete changes to avoid need for function casts in OpenSSL
321 some compilers (gcc 4.2 and later) reject their use. Safestack is
322 reimplemented. Update ASN1 to avoid use of legacy functions.
325 *) Win32/64 targets are linked with Winsock2.
328 *) Add an X509_CRL_METHOD structure to allow CRL processing to be redirected
329 to external functions. This can be used to increase CRL handling
330 efficiency especially when CRLs are very large by (for example) storing
331 the CRL revoked certificates in a database.
334 *) Overhaul of by_dir code. Add support for dynamic loading of CRLs so
335 new CRLs added to a directory can be used. New command line option
336 -verify_return_error to s_client and s_server. This causes real errors
337 to be returned by the verify callback instead of carrying on no matter
338 what. This reflects the way a "real world" verify callback would behave.
341 *) GOST engine, supporting several GOST algorithms and public key formats.
342 Kindly donated by Cryptocom.
345 *) Partial support for Issuing Distribution Point CRL extension. CRLs
346 partitioned by DP are handled but no indirect CRL or reason partitioning
347 (yet). Complete overhaul of CRL handling: now the most suitable CRL is
348 selected via a scoring technique which handles IDP and AKID in CRLs.
351 *) New X509_STORE_CTX callbacks lookup_crls() and lookup_certs() which
352 will ultimately be used for all verify operations: this will remove the
353 X509_STORE dependency on certificate verification and allow alternative
354 lookup methods. X509_STORE based implementations of these two callbacks.
357 *) Allow multiple CRLs to exist in an X509_STORE with matching issuer names.
358 Modify get_crl() to find a valid (unexpired) CRL if possible.
361 *) New function X509_CRL_match() to check if two CRLs are identical. Normally
362 this would be called X509_CRL_cmp() but that name is already used by
363 a function that just compares CRL issuer names. Cache several CRL
364 extensions in X509_CRL structure and cache CRLDP in X509.
367 *) Store a "canonical" representation of X509_NAME structure (ASN1 Name)
368 this maps equivalent X509_NAME structures into a consistent structure.
369 Name comparison can then be performed rapidly using memcmp().
372 *) Non-blocking OCSP request processing. Add -timeout option to ocsp
376 *) Allow digests to supply their own micalg string for S/MIME type using
377 the ctrl EVP_MD_CTRL_MICALG.
380 *) During PKCS7 signing pass the PKCS7 SignerInfo structure to the
381 EVP_PKEY_METHOD before and after signing via the EVP_PKEY_CTRL_PKCS7_SIGN
382 ctrl. It can then customise the structure before and/or after signing
386 *) New function OBJ_add_sigid() to allow application defined signature OIDs
387 to be added to OpenSSLs internal tables. New function OBJ_sigid_free()
388 to free up any added signature OIDs.
391 *) New functions EVP_CIPHER_do_all(), EVP_CIPHER_do_all_sorted(),
392 EVP_MD_do_all() and EVP_MD_do_all_sorted() to enumerate internal
393 digest and cipher tables. New options added to openssl utility:
394 list-message-digest-algorithms and list-cipher-algorithms.
397 *) Change the array representation of binary polynomials: the list
398 of degrees of non-zero coefficients is now terminated with -1.
399 Previously it was terminated with 0, which was also part of the
400 value; thus, the array representation was not applicable to
401 polynomials where t^0 has coefficient zero. This change makes
402 the array representation useful in a more general context.
405 *) Various modifications and fixes to SSL/TLS cipher string
406 handling. For ECC, the code now distinguishes between fixed ECDH
407 with RSA certificates on the one hand and with ECDSA certificates
408 on the other hand, since these are separate ciphersuites. The
409 unused code for Fortezza ciphersuites has been removed.
411 For consistency with EDH, ephemeral ECDH is now called "EECDH"
412 (not "ECDHE"). For consistency with the code for DH
413 certificates, use of ECDH certificates is now considered ECDH
414 authentication, not RSA or ECDSA authentication (the latter is
415 merely the CA's signing algorithm and not actively used in the
418 The temporary ciphersuite alias "ECCdraft" is no longer
419 available, and ECC ciphersuites are no longer excluded from "ALL"
420 and "DEFAULT". The following aliases now exist for RFC 4492
421 ciphersuites, most of these by analogy with the DH case:
423 kECDHr - ECDH cert, signed with RSA
424 kECDHe - ECDH cert, signed with ECDSA
425 kECDH - ECDH cert (signed with either RSA or ECDSA)
426 kEECDH - ephemeral ECDH
427 ECDH - ECDH cert or ephemeral ECDH
433 AECDH - anonymous ECDH
434 EECDH - non-anonymous ephemeral ECDH (equivalent to "kEECDH:-AECDH")
438 *) Add additional S/MIME capabilities for AES and GOST ciphers if supported.
439 Use correct micalg parameters depending on digest(s) in signed message.
442 *) Add engine support for EVP_PKEY_ASN1_METHOD. Add functions to process
443 an ENGINE asn1 method. Support ENGINE lookups in the ASN1 code.
446 *) Initial engine support for EVP_PKEY_METHOD. New functions to permit
447 an engine to register a method. Add ENGINE lookups for methods and
448 functional reference processing.
451 *) New functions EVP_Digest{Sign,Verify)*. These are enchance versions of
452 EVP_{Sign,Verify}* which allow an application to customise the signature
456 *) New -resign option to smime utility. This adds one or more signers
457 to an existing PKCS#7 signedData structure. Also -md option to use an
458 alternative message digest algorithm for signing.
461 *) Tidy up PKCS#7 routines and add new functions to make it easier to
462 create PKCS7 structures containing multiple signers. Update smime
463 application to support multiple signers.
466 *) New -macalg option to pkcs12 utility to allow setting of an alternative
470 *) Initial support for PKCS#5 v2.0 PRFs other than default SHA1 HMAC.
471 Reorganize PBE internals to lookup from a static table using NIDs,
472 add support for HMAC PBE OID translation. Add a EVP_CIPHER ctrl:
473 EVP_CTRL_PBE_PRF_NID this allows a cipher to specify an alternative
474 PRF which will be automatically used with PBES2.
477 *) Replace the algorithm specific calls to generate keys in "req" with the
481 *) Update PKCS#7 enveloped data routines to use new API. This is now
482 supported by any public key method supporting the encrypt operation. A
483 ctrl is added to allow the public key algorithm to examine or modify
484 the PKCS#7 RecipientInfo structure if it needs to: for RSA this is
488 *) Add a ctrl to asn1 method to allow a public key algorithm to express
489 a default digest type to use. In most cases this will be SHA1 but some
490 algorithms (such as GOST) need to specify an alternative digest. The
491 return value indicates how strong the prefernce is 1 means optional and
492 2 is mandatory (that is it is the only supported type). Modify
493 ASN1_item_sign() to accept a NULL digest argument to indicate it should
494 use the default md. Update openssl utilities to use the default digest
495 type for signing if it is not explicitly indicated.
498 *) Use OID cross reference table in ASN1_sign() and ASN1_verify(). New
499 EVP_MD flag EVP_MD_FLAG_PKEY_METHOD_SIGNATURE. This uses the relevant
500 signing method from the key type. This effectively removes the link
501 between digests and public key types.
504 *) Add an OID cross reference table and utility functions. Its purpose is to
505 translate between signature OIDs such as SHA1WithrsaEncryption and SHA1,
506 rsaEncryption. This will allow some of the algorithm specific hackery
507 needed to use the correct OID to be removed.
510 *) Remove algorithm specific dependencies when setting PKCS7_SIGNER_INFO
511 structures for PKCS7_sign(). They are now set up by the relevant public
515 *) Add provisional EC pkey method with support for ECDSA and ECDH.
518 *) Add support for key derivation (agreement) in the API, DH method and
522 *) Add DSA pkey method and DH pkey methods, extend DH ASN1 method to support
523 public and private key formats. As a side effect these add additional
524 command line functionality not previously available: DSA signatures can be
525 generated and verified using pkeyutl and DH key support and generation in
530 [Oliver Tappe <zooey@hirschkaefer.de>]
532 *) New make target "install_html_docs" installs HTML renditions of the
534 [Oliver Tappe <zooey@hirschkaefer.de>]
536 *) New utility "genpkey" this is analagous to "genrsa" etc except it can
537 generate keys for any algorithm. Extend and update EVP_PKEY_METHOD to
538 support key and parameter generation and add initial key generation
539 functionality for RSA.
542 *) Add functions for main EVP_PKEY_method operations. The undocumented
543 functions EVP_PKEY_{encrypt,decrypt} have been renamed to
544 EVP_PKEY_{encrypt,decrypt}_old.
547 *) Initial definitions for EVP_PKEY_METHOD. This will be a high level public
548 key API, doesn't do much yet.
551 *) New function EVP_PKEY_asn1_get0_info() to retrieve information about
552 public key algorithms. New option to openssl utility:
553 "list-public-key-algorithms" to print out info.
556 *) Implement the Supported Elliptic Curves Extension for
557 ECC ciphersuites from draft-ietf-tls-ecc-12.txt.
560 *) Don't free up OIDs in OBJ_cleanup() if they are in use by EVP_MD or
561 EVP_CIPHER structures to avoid later problems in EVP_cleanup().
564 *) New utilities pkey and pkeyparam. These are similar to algorithm specific
565 utilities such as rsa, dsa, dsaparam etc except they process any key
569 *) Transfer public key printing routines to EVP_PKEY_ASN1_METHOD. New
570 functions EVP_PKEY_print_public(), EVP_PKEY_print_private(),
571 EVP_PKEY_print_param() to print public key data from an EVP_PKEY
575 *) Initial support for pluggable public key ASN1.
576 De-spaghettify the public key ASN1 handling. Move public and private
577 key ASN1 handling to a new EVP_PKEY_ASN1_METHOD structure. Relocate
578 algorithm specific handling to a single module within the relevant
579 algorithm directory. Add functions to allow (near) opaque processing
580 of public and private key structures.
583 *) Implement the Supported Point Formats Extension for
584 ECC ciphersuites from draft-ietf-tls-ecc-12.txt.
587 *) Add initial support for RFC 4279 PSK TLS ciphersuites. Add members
588 for the psk identity [hint] and the psk callback functions to the
589 SSL_SESSION, SSL and SSL_CTX structure.
592 PSK-RC4-SHA, PSK-3DES-EDE-CBC-SHA, PSK-AES128-CBC-SHA,
596 SSL_CTX_use_psk_identity_hint
597 SSL_get_psk_identity_hint
599 SSL_use_psk_identity_hint
601 [Mika Kousa and Pasi Eronen of Nokia Corporation]
603 *) Add RFC 3161 compliant time stamp request creation, response generation
604 and response verification functionality.
605 [Zoltán Glózik <zglozik@opentsa.org>, The OpenTSA Project]
607 *) Add initial support for TLS extensions, specifically for the server_name
608 extension so far. The SSL_SESSION, SSL_CTX, and SSL data structures now
609 have new members for a host name. The SSL data structure has an
610 additional member SSL_CTX *initial_ctx so that new sessions can be
611 stored in that context to allow for session resumption, even after the
612 SSL has been switched to a new SSL_CTX in reaction to a client's
613 server_name extension.
615 New functions (subject to change):
618 SSL_get_servername_type()
621 New CTRL codes and macros (subject to change):
623 SSL_CTRL_SET_TLSEXT_SERVERNAME_CB
624 - SSL_CTX_set_tlsext_servername_callback()
625 SSL_CTRL_SET_TLSEXT_SERVERNAME_ARG
626 - SSL_CTX_set_tlsext_servername_arg()
627 SSL_CTRL_SET_TLSEXT_HOSTNAME - SSL_set_tlsext_host_name()
629 openssl s_client has a new '-servername ...' option.
631 openssl s_server has new options '-servername_host ...', '-cert2 ...',
632 '-key2 ...', '-servername_fatal' (subject to change). This allows
633 testing the HostName extension for a specific single host name ('-cert'
634 and '-key' remain fallbacks for handshakes without HostName
635 negotiation). If the unrecogninzed_name alert has to be sent, this by
636 default is a warning; it becomes fatal with the '-servername_fatal'
639 [Peter Sylvester, Remy Allais, Christophe Renou]
641 *) Whirlpool hash implementation is added.
644 *) BIGNUM code on 64-bit SPARCv9 targets is switched from bn(64,64) to
645 bn(64,32). Because of instruction set limitations it doesn't have
646 any negative impact on performance. This was done mostly in order
647 to make it possible to share assembler modules, such as bn_mul_mont
648 implementations, between 32- and 64-bit builds without hassle.
651 *) Move code previously exiled into file crypto/ec/ec2_smpt.c
652 to ec2_smpl.c, and no longer require the OPENSSL_EC_BIN_PT_COMP
656 *) New candidate for BIGNUM assembler implementation, bn_mul_mont,
657 dedicated Montgomery multiplication procedure, is introduced.
658 BN_MONT_CTX is modified to allow bn_mul_mont to reach for higher
659 "64-bit" performance on certain 32-bit targets.
662 *) New option SSL_OP_NO_COMP to disable use of compression selectively
663 in SSL structures. New SSL ctrl to set maximum send fragment size.
664 Save memory by seeting the I/O buffer sizes dynamically instead of
665 using the maximum available value.
668 *) New option -V for 'openssl ciphers'. This prints the ciphersuite code
669 in addition to the text details.
672 *) Very, very preliminary EXPERIMENTAL support for printing of general
673 ASN1 structures. This currently produces rather ugly output and doesn't
674 handle several customised structures at all.
677 *) Integrated support for PVK file format and some related formats such
678 as MS PUBLICKEYBLOB and PRIVATEKEYBLOB. Command line switches to support
679 these in the 'rsa' and 'dsa' utilities.
682 *) Support for PKCS#1 RSAPublicKey format on rsa utility command line.
685 *) Remove the ancient ASN1_METHOD code. This was only ever used in one
686 place for the (very old) "NETSCAPE" format certificates which are now
687 handled using new ASN1 code equivalents.
690 *) Let the TLSv1_method() etc. functions return a 'const' SSL_METHOD
691 pointer and make the SSL_METHOD parameter in SSL_CTX_new,
692 SSL_CTX_set_ssl_version and SSL_set_ssl_method 'const'.
695 *) Modify CRL distribution points extension code to print out previously
696 unsupported fields. Enhance extension setting code to allow setting of
700 *) Add print and set support for Issuing Distribution Point CRL extension.
703 *) Change 'Configure' script to enable Camellia by default.
706 Changes between 0.9.8i and 0.9.8j [xx XXX xxxx]
708 *) Change the server-side SSL_OP_NETSCAPE_REUSE_CIPHER_CHANGE_BUG behavior
709 to ensure that even with this option, only ciphersuites in the
710 server's preference list will be accepted. (Note that the option
711 applies only when resuming a session, so the earlier behavior was
712 just about the algorithm choice for symmetric cryptography.)
715 Changes between 0.9.8h and 0.9.8i [15 Sep 2008]
717 *) Fix a state transitition in s3_srvr.c and d1_srvr.c
718 (was using SSL3_ST_CW_CLNT_HELLO_B, should be ..._ST_SW_SRVR_...).
721 *) The fix in 0.9.8c that supposedly got rid of unsafe
722 double-checked locking was incomplete for RSA blinding,
723 addressing just one layer of what turns out to have been
724 doubly unsafe triple-checked locking.
726 So now fix this for real by retiring the MONT_HELPER macro
727 in crypto/rsa/rsa_eay.c.
729 [Bodo Moeller; problem pointed out by Marius Schilder]
731 *) Various precautionary measures:
733 - Avoid size_t integer overflow in HASH_UPDATE (md32_common.h).
735 - Avoid a buffer overflow in d2i_SSL_SESSION() (ssl_asn1.c).
736 (NB: This would require knowledge of the secret session ticket key
737 to exploit, in which case you'd be SOL either way.)
739 - Change bn_nist.c so that it will properly handle input BIGNUMs
740 outside the expected range.
742 - Enforce the 'num' check in BN_div() (bn_div.c) for non-BN_DEBUG
745 [Neel Mehta, Bodo Moeller]
747 *) Allow engines to be "soft loaded" - i.e. optionally don't die if
748 the load fails. Useful for distros.
749 [Ben Laurie and the FreeBSD team]
751 *) Add support for Local Machine Keyset attribute in PKCS#12 files.
754 *) Fix BN_GF2m_mod_arr() top-bit cleanup code.
757 *) Expand ENGINE to support engine supplied SSL client certificate functions.
759 This work was sponsored by Logica.
762 *) Add CryptoAPI ENGINE to support use of RSA and DSA keys held in Windows
763 keystores. Support for SSL/TLS client authentication too.
764 Not compiled unless enable-capieng specified to Configure.
766 This work was sponsored by Logica.
769 *) Fix bug in X509_ATTRIBUTE creation: dont set attribute using
770 ASN1_TYPE_set1 if MBSTRING flag set. This bug would crash certain
771 attribute creation routines such as certifcate requests and PKCS#12
775 Changes between 0.9.8g and 0.9.8h [28 May 2008]
777 *) Fix flaw if 'Server Key exchange message' is omitted from a TLS
778 handshake which could lead to a cilent crash as found using the
779 Codenomicon TLS test suite (CVE-2008-1672)
780 [Steve Henson, Mark Cox]
782 *) Fix double free in TLS server name extensions which could lead to
783 a remote crash found by Codenomicon TLS test suite (CVE-2008-0891)
786 *) Clear error queue in SSL_CTX_use_certificate_chain_file()
788 Clear the error queue to ensure that error entries left from
789 older function calls do not interfere with the correct operation.
790 [Lutz Jaenicke, Erik de Castro Lopo]
792 *) Remove root CA certificates of commercial CAs:
794 The OpenSSL project does not recommend any specific CA and does not
795 have any policy with respect to including or excluding any CA.
796 Therefore it does not make any sense to ship an arbitrary selection
797 of root CA certificates with the OpenSSL software.
800 *) RSA OAEP patches to fix two separate invalid memory reads.
801 The first one involves inputs when 'lzero' is greater than
802 'SHA_DIGEST_LENGTH' (it would read about SHA_DIGEST_LENGTH bytes
803 before the beginning of from). The second one involves inputs where
804 the 'db' section contains nothing but zeroes (there is a one-byte
805 invalid read after the end of 'db').
806 [Ivan Nestlerode <inestlerode@us.ibm.com>]
808 *) Partial backport from 0.9.9-dev:
810 Introduce bn_mul_mont (dedicated Montgomery multiplication
811 procedure) as a candidate for BIGNUM assembler implementation.
812 While 0.9.9-dev uses assembler for various architectures, only
813 x86_64 is available by default here in the 0.9.8 branch, and
814 32-bit x86 is available through a compile-time setting.
816 To try the 32-bit x86 assembler implementation, use Configure
817 option "enable-montasm" (which exists only for this backport).
819 As "enable-montasm" for 32-bit x86 disclaims code stability
820 anyway, in this constellation we activate additional code
821 backported from 0.9.9-dev for further performance improvements,
822 namely BN_from_montgomery_word. (To enable this otherwise,
823 e.g. x86_64, try "-DMONT_FROM_WORD___NON_DEFAULT_0_9_8_BUILD".)
825 [Andy Polyakov (backport partially by Bodo Moeller)]
827 *) Add TLS session ticket callback. This allows an application to set
828 TLS ticket cipher and HMAC keys rather than relying on hardcoded fixed
829 values. This is useful for key rollover for example where several key
830 sets may exist with different names.
833 *) Reverse ENGINE-internal logic for caching default ENGINE handles.
834 This was broken until now in 0.9.8 releases, such that the only way
835 a registered ENGINE could be used (assuming it initialises
836 successfully on the host) was to explicitly set it as the default
837 for the relevant algorithms. This is in contradiction with 0.9.7
838 behaviour and the documentation. With this fix, when an ENGINE is
839 registered into a given algorithm's table of implementations, the
840 'uptodate' flag is reset so that auto-discovery will be used next
841 time a new context for that algorithm attempts to select an
843 [Ian Lister (tweaked by Geoff Thorpe)]
845 *) Backport of CMS code to OpenSSL 0.9.8. This differs from the 0.9.9
846 implemention in the following ways:
848 Lack of EVP_PKEY_ASN1_METHOD means algorithm parameters have to be
851 Lack of BER streaming support means one pass streaming processing is
852 only supported if data is detached: setting the streaming flag is
853 ignored for embedded content.
855 CMS support is disabled by default and must be explicitly enabled
856 with the enable-cms configuration option.
859 *) Update the GMP engine glue to do direct copies between BIGNUM and
860 mpz_t when openssl and GMP use the same limb size. Otherwise the
861 existing "conversion via a text string export" trick is still used.
862 [Paul Sheer <paulsheer@gmail.com>]
864 *) Zlib compression BIO. This is a filter BIO which compressed and
865 uncompresses any data passed through it.
868 *) Add AES_wrap_key() and AES_unwrap_key() functions to implement
869 RFC3394 compatible AES key wrapping.
872 *) Add utility functions to handle ASN1 structures. ASN1_STRING_set0():
873 sets string data without copying. X509_ALGOR_set0() and
874 X509_ALGOR_get0(): set and retrieve X509_ALGOR (AlgorithmIdentifier)
875 data. Attribute function X509at_get0_data_by_OBJ(): retrieves data
876 from an X509_ATTRIBUTE structure optionally checking it occurs only
877 once. ASN1_TYPE_set1(): set and ASN1_TYPE structure copying supplied
881 *) Fix BN flag handling in RSA_eay_mod_exp() and BN_MONT_CTX_set()
882 to get the expected BN_FLG_CONSTTIME behavior.
883 [Bodo Moeller (Google)]
887 - fixed wrong usage of ioctlsocket() when build for LIBC BSD sockets
888 - fixed do_tests.pl to run the test suite with CLIB builds too (CLIB_OPT)
889 - added some more tests to do_tests.pl
890 - fixed RunningProcess usage so that it works with newer LIBC NDKs too
891 - removed usage of BN_LLONG for CLIB builds to avoid runtime dependency
892 - added new Configure targets netware-clib-bsdsock, netware-clib-gcc,
893 netware-clib-bsdsock-gcc, netware-libc-bsdsock-gcc
894 - various changes to netware.pl to enable gcc-cross builds on Win32
896 - changed crypto/bio/b_sock.c to work with macro functions (CLIB BSD)
897 - various changes to fix missing prototype warnings
898 - fixed x86nasm.pl to create correct asm files for NASM COFF output
899 - added AES, WHIRLPOOL and CPUID assembler code to build files
900 - added missing AES assembler make rules to mk1mf.pl
901 - fixed order of includes in apps/ocsp.c so that e_os.h settings apply
902 [Guenter Knauf <eflash@gmx.net>]
904 *) Implement certificate status request TLS extension defined in RFC3546.
905 A client can set the appropriate parameters and receive the encoded
906 OCSP response via a callback. A server can query the supplied parameters
907 and set the encoded OCSP response in the callback. Add simplified examples
908 to s_client and s_server.
911 Changes between 0.9.8f and 0.9.8g [19 Oct 2007]
914 + Binary incompatibility of ssl_ctx_st structure
915 + DTLS interoperation with non-compliant servers
916 + Don't call get_session_cb() without proposed session
917 + Fix ia64 assembler code
918 [Andy Polyakov, Steve Henson]
920 Changes between 0.9.8e and 0.9.8f [11 Oct 2007]
922 *) DTLS Handshake overhaul. There were longstanding issues with
923 OpenSSL DTLS implementation, which were making it impossible for
924 RFC 4347 compliant client to communicate with OpenSSL server.
925 Unfortunately just fixing these incompatibilities would "cut off"
926 pre-0.9.8f clients. To allow for hassle free upgrade post-0.9.8e
927 server keeps tolerating non RFC compliant syntax. The opposite is
928 not true, 0.9.8f client can not communicate with earlier server.
929 This update even addresses CVE-2007-4995.
932 *) Changes to avoid need for function casts in OpenSSL: some compilers
933 (gcc 4.2 and later) reject their use.
934 [Kurt Roeckx <kurt@roeckx.be>, Peter Hartley <pdh@utter.chaos.org.uk>,
937 *) Add RFC4507 support to OpenSSL. This includes the corrections in
938 RFC4507bis. The encrypted ticket format is an encrypted encoded
939 SSL_SESSION structure, that way new session features are automatically
942 If a client application caches session in an SSL_SESSION structure
943 support is transparent because tickets are now stored in the encoded
946 The SSL_CTX structure automatically generates keys for ticket
947 protection in servers so again support should be possible
948 with no application modification.
950 If a client or server wishes to disable RFC4507 support then the option
951 SSL_OP_NO_TICKET can be set.
953 Add a TLS extension debugging callback to allow the contents of any client
954 or server extensions to be examined.
956 This work was sponsored by Google.
959 *) Add initial support for TLS extensions, specifically for the server_name
960 extension so far. The SSL_SESSION, SSL_CTX, and SSL data structures now
961 have new members for a host name. The SSL data structure has an
962 additional member SSL_CTX *initial_ctx so that new sessions can be
963 stored in that context to allow for session resumption, even after the
964 SSL has been switched to a new SSL_CTX in reaction to a client's
965 server_name extension.
967 New functions (subject to change):
970 SSL_get_servername_type()
973 New CTRL codes and macros (subject to change):
975 SSL_CTRL_SET_TLSEXT_SERVERNAME_CB
976 - SSL_CTX_set_tlsext_servername_callback()
977 SSL_CTRL_SET_TLSEXT_SERVERNAME_ARG
978 - SSL_CTX_set_tlsext_servername_arg()
979 SSL_CTRL_SET_TLSEXT_HOSTNAME - SSL_set_tlsext_host_name()
981 openssl s_client has a new '-servername ...' option.
983 openssl s_server has new options '-servername_host ...', '-cert2 ...',
984 '-key2 ...', '-servername_fatal' (subject to change). This allows
985 testing the HostName extension for a specific single host name ('-cert'
986 and '-key' remain fallbacks for handshakes without HostName
987 negotiation). If the unrecogninzed_name alert has to be sent, this by
988 default is a warning; it becomes fatal with the '-servername_fatal'
991 [Peter Sylvester, Remy Allais, Christophe Renou, Steve Henson]
993 *) Add AES and SSE2 assembly language support to VC++ build.
996 *) Mitigate attack on final subtraction in Montgomery reduction.
999 *) Fix crypto/ec/ec_mult.c to work properly with scalars of value 0
1000 (which previously caused an internal error).
1003 *) Squeeze another 10% out of IGE mode when in != out.
1006 *) AES IGE mode speedup.
1007 [Dean Gaudet (Google)]
1009 *) Add the Korean symmetric 128-bit cipher SEED (see
1010 http://www.kisa.or.kr/kisa/seed/jsp/seed_eng.jsp) and
1011 add SEED ciphersuites from RFC 4162:
1013 TLS_RSA_WITH_SEED_CBC_SHA = "SEED-SHA"
1014 TLS_DHE_DSS_WITH_SEED_CBC_SHA = "DHE-DSS-SEED-SHA"
1015 TLS_DHE_RSA_WITH_SEED_CBC_SHA = "DHE-RSA-SEED-SHA"
1016 TLS_DH_anon_WITH_SEED_CBC_SHA = "ADH-SEED-SHA"
1018 To minimize changes between patchlevels in the OpenSSL 0.9.8
1019 series, SEED remains excluded from compilation unless OpenSSL
1020 is configured with 'enable-seed'.
1021 [KISA, Bodo Moeller]
1023 *) Mitigate branch prediction attacks, which can be practical if a
1024 single processor is shared, allowing a spy process to extract
1025 information. For detailed background information, see
1026 http://eprint.iacr.org/2007/039 (O. Aciicmez, S. Gueron,
1027 J.-P. Seifert, "New Branch Prediction Vulnerabilities in OpenSSL
1028 and Necessary Software Countermeasures"). The core of the change
1029 are new versions BN_div_no_branch() and
1030 BN_mod_inverse_no_branch() of BN_div() and BN_mod_inverse(),
1031 respectively, which are slower, but avoid the security-relevant
1032 conditional branches. These are automatically called by BN_div()
1033 and BN_mod_inverse() if the flag BN_FLG_CONSTTIME is set for one
1034 of the input BIGNUMs. Also, BN_is_bit_set() has been changed to
1035 remove a conditional branch.
1037 BN_FLG_CONSTTIME is the new name for the previous
1038 BN_FLG_EXP_CONSTTIME flag, since it now affects more than just
1039 modular exponentiation. (Since OpenSSL 0.9.7h, setting this flag
1040 in the exponent causes BN_mod_exp_mont() to use the alternative
1041 implementation in BN_mod_exp_mont_consttime().) The old name
1042 remains as a deprecated alias.
1044 Similary, RSA_FLAG_NO_EXP_CONSTTIME is replaced by a more general
1045 RSA_FLAG_NO_CONSTTIME flag since the RSA implementation now uses
1046 constant-time implementations for more than just exponentiation.
1047 Here too the old name is kept as a deprecated alias.
1049 BN_BLINDING_new() will now use BN_dup() for the modulus so that
1050 the BN_BLINDING structure gets an independent copy of the
1051 modulus. This means that the previous "BIGNUM *m" argument to
1052 BN_BLINDING_new() and to BN_BLINDING_create_param() now
1053 essentially becomes "const BIGNUM *m", although we can't actually
1054 change this in the header file before 0.9.9. It allows
1055 RSA_setup_blinding() to use BN_with_flags() on the modulus to
1056 enable BN_FLG_CONSTTIME.
1058 [Matthew D Wood (Intel Corp)]
1060 *) In the SSL/TLS server implementation, be strict about session ID
1061 context matching (which matters if an application uses a single
1062 external cache for different purposes). Previously,
1063 out-of-context reuse was forbidden only if SSL_VERIFY_PEER was
1064 set. This did ensure strict client verification, but meant that,
1065 with applications using a single external cache for quite
1066 different requirements, clients could circumvent ciphersuite
1067 restrictions for a given session ID context by starting a session
1068 in a different context.
1071 *) Include "!eNULL" in SSL_DEFAULT_CIPHER_LIST to make sure that
1072 a ciphersuite string such as "DEFAULT:RSA" cannot enable
1073 authentication-only ciphersuites.
1076 *) Update the SSL_get_shared_ciphers() fix CVE-2006-3738 which was
1077 not complete and could lead to a possible single byte overflow
1078 (CVE-2007-5135) [Ben Laurie]
1080 Changes between 0.9.8d and 0.9.8e [23 Feb 2007]
1082 *) Since AES128 and AES256 (and similarly Camellia128 and
1083 Camellia256) share a single mask bit in the logic of
1084 ssl/ssl_ciph.c, the code for masking out disabled ciphers needs a
1085 kludge to work properly if AES128 is available and AES256 isn't
1086 (or if Camellia128 is available and Camellia256 isn't).
1089 *) Fix the BIT STRING encoding generated by crypto/ec/ec_asn1.c
1090 (within i2d_ECPrivateKey, i2d_ECPKParameters, i2d_ECParameters):
1091 When a point or a seed is encoded in a BIT STRING, we need to
1092 prevent the removal of trailing zero bits to get the proper DER
1093 encoding. (By default, crypto/asn1/a_bitstr.c assumes the case
1094 of a NamedBitList, for which trailing 0 bits need to be removed.)
1097 *) Have SSL/TLS server implementation tolerate "mismatched" record
1098 protocol version while receiving ClientHello even if the
1099 ClientHello is fragmented. (The server can't insist on the
1100 particular protocol version it has chosen before the ServerHello
1101 message has informed the client about his choice.)
1104 *) Add RFC 3779 support.
1105 [Rob Austein for ARIN, Ben Laurie]
1107 *) Load error codes if they are not already present instead of using a
1108 static variable. This allows them to be cleanly unloaded and reloaded.
1109 Improve header file function name parsing.
1112 *) extend SMTP and IMAP protocol emulation in s_client to use EHLO
1113 or CAPABILITY handshake as required by RFCs.
1116 Changes between 0.9.8c and 0.9.8d [28 Sep 2006]
1118 *) Introduce limits to prevent malicious keys being able to
1119 cause a denial of service. (CVE-2006-2940)
1120 [Steve Henson, Bodo Moeller]
1122 *) Fix ASN.1 parsing of certain invalid structures that can result
1123 in a denial of service. (CVE-2006-2937) [Steve Henson]
1125 *) Fix buffer overflow in SSL_get_shared_ciphers() function.
1126 (CVE-2006-3738) [Tavis Ormandy and Will Drewry, Google Security Team]
1128 *) Fix SSL client code which could crash if connecting to a
1129 malicious SSLv2 server. (CVE-2006-4343)
1130 [Tavis Ormandy and Will Drewry, Google Security Team]
1132 *) Since 0.9.8b, ciphersuite strings naming explicit ciphersuites
1133 match only those. Before that, "AES256-SHA" would be interpreted
1134 as a pattern and match "AES128-SHA" too (since AES128-SHA got
1135 the same strength classification in 0.9.7h) as we currently only
1136 have a single AES bit in the ciphersuite description bitmap.
1137 That change, however, also applied to ciphersuite strings such as
1138 "RC4-MD5" that intentionally matched multiple ciphersuites --
1139 namely, SSL 2.0 ciphersuites in addition to the more common ones
1140 from SSL 3.0/TLS 1.0.
1142 So we change the selection algorithm again: Naming an explicit
1143 ciphersuite selects this one ciphersuite, and any other similar
1144 ciphersuite (same bitmap) from *other* protocol versions.
1145 Thus, "RC4-MD5" again will properly select both the SSL 2.0
1146 ciphersuite and the SSL 3.0/TLS 1.0 ciphersuite.
1148 Since SSL 2.0 does not have any ciphersuites for which the
1149 128/256 bit distinction would be relevant, this works for now.
1150 The proper fix will be to use different bits for AES128 and
1151 AES256, which would have avoided the problems from the beginning;
1152 however, bits are scarce, so we can only do this in a new release
1153 (not just a patchlevel) when we can change the SSL_CIPHER
1154 definition to split the single 'unsigned long mask' bitmap into
1155 multiple values to extend the available space.
1159 Changes between 0.9.8b and 0.9.8c [05 Sep 2006]
1161 *) Avoid PKCS #1 v1.5 signature attack discovered by Daniel Bleichenbacher
1162 (CVE-2006-4339) [Ben Laurie and Google Security Team]
1164 *) Add AES IGE and biIGE modes.
1167 *) Change the Unix randomness entropy gathering to use poll() when
1168 possible instead of select(), since the latter has some
1169 undesirable limitations.
1170 [Darryl Miles via Richard Levitte and Bodo Moeller]
1172 *) Disable "ECCdraft" ciphersuites more thoroughly. Now special
1173 treatment in ssl/ssl_ciph.s makes sure that these ciphersuites
1174 cannot be implicitly activated as part of, e.g., the "AES" alias.
1175 However, please upgrade to OpenSSL 0.9.9[-dev] for
1176 non-experimental use of the ECC ciphersuites to get TLS extension
1177 support, which is required for curve and point format negotiation
1178 to avoid potential handshake problems.
1181 *) Disable rogue ciphersuites:
1183 - SSLv2 0x08 0x00 0x80 ("RC4-64-MD5")
1184 - SSLv3/TLSv1 0x00 0x61 ("EXP1024-RC2-CBC-MD5")
1185 - SSLv3/TLSv1 0x00 0x60 ("EXP1024-RC4-MD5")
1187 The latter two were purportedly from
1188 draft-ietf-tls-56-bit-ciphersuites-0[01].txt, but do not really
1191 Also deactivate the remaining ciphersuites from
1192 draft-ietf-tls-56-bit-ciphersuites-01.txt. These are just as
1193 unofficial, and the ID has long expired.
1196 *) Fix RSA blinding Heisenbug (problems sometimes occured on
1197 dual-core machines) and other potential thread-safety issues.
1200 *) Add the symmetric cipher Camellia (128-bit, 192-bit, 256-bit key
1201 versions), which is now available for royalty-free use
1202 (see http://info.isl.ntt.co.jp/crypt/eng/info/chiteki.html).
1203 Also, add Camellia TLS ciphersuites from RFC 4132.
1205 To minimize changes between patchlevels in the OpenSSL 0.9.8
1206 series, Camellia remains excluded from compilation unless OpenSSL
1207 is configured with 'enable-camellia'.
1210 *) Disable the padding bug check when compression is in use. The padding
1211 bug check assumes the first packet is of even length, this is not
1212 necessarily true if compresssion is enabled and can result in false
1213 positives causing handshake failure. The actual bug test is ancient
1214 code so it is hoped that implementations will either have fixed it by
1215 now or any which still have the bug do not support compression.
1218 Changes between 0.9.8a and 0.9.8b [04 May 2006]
1220 *) When applying a cipher rule check to see if string match is an explicit
1221 cipher suite and only match that one cipher suite if it is.
1224 *) Link in manifests for VC++ if needed.
1225 [Austin Ziegler <halostatue@gmail.com>]
1227 *) Update support for ECC-based TLS ciphersuites according to
1228 draft-ietf-tls-ecc-12.txt with proposed changes (but without
1229 TLS extensions, which are supported starting with the 0.9.9
1230 branch, not in the OpenSSL 0.9.8 branch).
1233 *) New functions EVP_CIPHER_CTX_new() and EVP_CIPHER_CTX_free() to support
1234 opaque EVP_CIPHER_CTX handling.
1237 *) Fixes and enhancements to zlib compression code. We now only use
1238 "zlib1.dll" and use the default __cdecl calling convention on Win32
1239 to conform with the standards mentioned here:
1240 http://www.zlib.net/DLL_FAQ.txt
1241 Static zlib linking now works on Windows and the new --with-zlib-include
1242 --with-zlib-lib options to Configure can be used to supply the location
1243 of the headers and library. Gracefully handle case where zlib library
1247 *) Several fixes and enhancements to the OID generation code. The old code
1248 sometimes allowed invalid OIDs (1.X for X >= 40 for example), couldn't
1249 handle numbers larger than ULONG_MAX, truncated printing and had a
1250 non standard OBJ_obj2txt() behaviour.
1253 *) Add support for building of engines under engine/ as shared libraries
1254 under VC++ build system.
1257 *) Corrected the numerous bugs in the Win32 path splitter in DSO.
1258 Hopefully, we will not see any false combination of paths any more.
1261 Changes between 0.9.8 and 0.9.8a [11 Oct 2005]
1263 *) Remove the functionality of SSL_OP_MSIE_SSLV2_RSA_PADDING
1264 (part of SSL_OP_ALL). This option used to disable the
1265 countermeasure against man-in-the-middle protocol-version
1266 rollback in the SSL 2.0 server implementation, which is a bad
1267 idea. (CVE-2005-2969)
1269 [Bodo Moeller; problem pointed out by Yutaka Oiwa (Research Center
1270 for Information Security, National Institute of Advanced Industrial
1271 Science and Technology [AIST], Japan)]
1273 *) Add two function to clear and return the verify parameter flags.
1276 *) Keep cipherlists sorted in the source instead of sorting them at
1277 runtime, thus removing the need for a lock.
1280 *) Avoid some small subgroup attacks in Diffie-Hellman.
1281 [Nick Mathewson and Ben Laurie]
1283 *) Add functions for well-known primes.
1286 *) Extended Windows CE support.
1287 [Satoshi Nakamura and Andy Polyakov]
1289 *) Initialize SSL_METHOD structures at compile time instead of during
1290 runtime, thus removing the need for a lock.
1293 *) Make PKCS7_decrypt() work even if no certificate is supplied by
1294 attempting to decrypt each encrypted key in turn. Add support to
1298 Changes between 0.9.7h and 0.9.8 [05 Jul 2005]
1300 [NB: OpenSSL 0.9.7i and later 0.9.7 patch levels were released after
1303 *) Add libcrypto.pc and libssl.pc for those who feel they need them.
1306 *) Change CA.sh and CA.pl so they don't bundle the CSR and the private
1307 key into the same file any more.
1310 *) Add initial support for Win64, both IA64 and AMD64/x64 flavors.
1313 *) Add -utf8 command line and config file option to 'ca'.
1314 [Stefan <stf@udoma.org]
1316 *) Removed the macro des_crypt(), as it seems to conflict with some
1317 libraries. Use DES_crypt().
1320 *) Correct naming of the 'chil' and '4758cca' ENGINEs. This
1321 involves renaming the source and generated shared-libs for
1322 both. The engines will accept the corrected or legacy ids
1323 ('ncipher' and '4758_cca' respectively) when binding. NB,
1324 this only applies when building 'shared'.
1325 [Corinna Vinschen <vinschen@redhat.com> and Geoff Thorpe]
1327 *) Add attribute functions to EVP_PKEY structure. Modify
1328 PKCS12_create() to recognize a CSP name attribute and
1329 use it. Make -CSP option work again in pkcs12 utility.
1332 *) Add new functionality to the bn blinding code:
1333 - automatic re-creation of the BN_BLINDING parameters after
1334 a fixed number of uses (currently 32)
1335 - add new function for parameter creation
1336 - introduce flags to control the update behaviour of the
1337 BN_BLINDING parameters
1338 - hide BN_BLINDING structure
1339 Add a second BN_BLINDING slot to the RSA structure to improve
1340 performance when a single RSA object is shared among several
1344 *) Add support for DTLS.
1345 [Nagendra Modadugu <nagendra@cs.stanford.edu> and Ben Laurie]
1347 *) Add support for DER encoded private keys (SSL_FILETYPE_ASN1)
1348 to SSL_CTX_use_PrivateKey_file() and SSL_use_PrivateKey_file()
1351 *) Remove buggy and incompletet DH cert support from
1352 ssl/ssl_rsa.c and ssl/s3_both.c
1355 *) Use SHA-1 instead of MD5 as the default digest algorithm for
1356 the apps/openssl applications.
1359 *) Compile clean with "-Wall -Wmissing-prototypes
1360 -Wstrict-prototypes -Wmissing-declarations -Werror". Currently
1361 DEBUG_SAFESTACK must also be set.
1364 *) Change ./Configure so that certain algorithms can be disabled by default.
1365 The new counterpiece to "no-xxx" is "enable-xxx".
1367 The patented RC5 and MDC2 algorithms will now be disabled unless
1368 "enable-rc5" and "enable-mdc2", respectively, are specified.
1370 (IDEA remains enabled despite being patented. This is because IDEA
1371 is frequently required for interoperability, and there is no license
1372 fee for non-commercial use. As before, "no-idea" can be used to
1373 avoid this algorithm.)
1377 *) Add processing of proxy certificates (see RFC 3820). This work was
1378 sponsored by KTH (The Royal Institute of Technology in Stockholm) and
1379 EGEE (Enabling Grids for E-science in Europe).
1382 *) RC4 performance overhaul on modern architectures/implementations, such
1383 as Intel P4, IA-64 and AMD64.
1386 *) New utility extract-section.pl. This can be used specify an alternative
1387 section number in a pod file instead of having to treat each file as
1388 a separate case in Makefile. This can be done by adding two lines to the
1391 =for comment openssl_section:XXX
1393 The blank line is mandatory.
1397 *) New arguments -certform, -keyform and -pass for s_client and s_server
1398 to allow alternative format key and certificate files and passphrase
1402 *) New structure X509_VERIFY_PARAM which combines current verify parameters,
1403 update associated structures and add various utility functions.
1405 Add new policy related verify parameters, include policy checking in
1406 standard verify code. Enhance 'smime' application with extra parameters
1407 to support policy checking and print out.
1410 *) Add a new engine to support VIA PadLock ACE extensions in the VIA C3
1411 Nehemiah processors. These extensions support AES encryption in hardware
1412 as well as RNG (though RNG support is currently disabled).
1413 [Michal Ludvig <michal@logix.cz>, with help from Andy Polyakov]
1415 *) Deprecate BN_[get|set]_params() functions (they were ignored internally).
1418 *) New FIPS 180-2 algorithms, SHA-224/-256/-384/-512 are implemented.
1419 [Andy Polyakov and a number of other people]
1421 *) Improved PowerPC platform support. Most notably BIGNUM assembler
1422 implementation contributed by IBM.
1423 [Suresh Chari, Peter Waltenberg, Andy Polyakov]
1425 *) The new 'RSA_generate_key_ex' function now takes a BIGNUM for the public
1426 exponent rather than 'unsigned long'. There is a corresponding change to
1427 the new 'rsa_keygen' element of the RSA_METHOD structure.
1428 [Jelte Jansen, Geoff Thorpe]
1430 *) Functionality for creating the initial serial number file is now
1431 moved from CA.pl to the 'ca' utility with a new option -create_serial.
1433 (Before OpenSSL 0.9.7e, CA.pl used to initialize the serial
1434 number file to 1, which is bound to cause problems. To avoid
1435 the problems while respecting compatibility between different 0.9.7
1436 patchlevels, 0.9.7e employed 'openssl x509 -next_serial' in
1437 CA.pl for serial number initialization. With the new release 0.9.8,
1438 we can fix the problem directly in the 'ca' utility.)
1441 *) Reduced header interdepencies by declaring more opaque objects in
1442 ossl_typ.h. As a consequence, including some headers (eg. engine.h) will
1443 give fewer recursive includes, which could break lazy source code - so
1444 this change is covered by the OPENSSL_NO_DEPRECATED symbol. As always,
1445 developers should define this symbol when building and using openssl to
1446 ensure they track the recommended behaviour, interfaces, [etc], but
1447 backwards-compatible behaviour prevails when this isn't defined.
1450 *) New function X509_POLICY_NODE_print() which prints out policy nodes.
1453 *) Add new EVP function EVP_CIPHER_CTX_rand_key and associated functionality.
1454 This will generate a random key of the appropriate length based on the
1455 cipher context. The EVP_CIPHER can provide its own random key generation
1456 routine to support keys of a specific form. This is used in the des and
1457 3des routines to generate a key of the correct parity. Update S/MIME
1458 code to use new functions and hence generate correct parity DES keys.
1459 Add EVP_CHECK_DES_KEY #define to return an error if the key is not
1460 valid (weak or incorrect parity).
1463 *) Add a local set of CRLs that can be used by X509_verify_cert() as well
1464 as looking them up. This is useful when the verified structure may contain
1465 CRLs, for example PKCS#7 signedData. Modify PKCS7_verify() to use any CRLs
1466 present unless the new PKCS7_NO_CRL flag is asserted.
1469 *) Extend ASN1 oid configuration module. It now additionally accepts the
1472 shortName = some long name, 1.2.3.4
1475 *) Reimplemented the BN_CTX implementation. There is now no more static
1476 limitation on the number of variables it can handle nor the depth of the
1477 "stack" handling for BN_CTX_start()/BN_CTX_end() pairs. The stack
1478 information can now expand as required, and rather than having a single
1479 static array of bignums, BN_CTX now uses a linked-list of such arrays
1480 allowing it to expand on demand whilst maintaining the usefulness of
1481 BN_CTX's "bundling".
1484 *) Add a missing BN_CTX parameter to the 'rsa_mod_exp' callback in RSA_METHOD
1485 to allow all RSA operations to function using a single BN_CTX.
1488 *) Preliminary support for certificate policy evaluation and checking. This
1489 is initially intended to pass the tests outlined in "Conformance Testing
1490 of Relying Party Client Certificate Path Processing Logic" v1.07.
1493 *) bn_dup_expand() has been deprecated, it was introduced in 0.9.7 and
1494 remained unused and not that useful. A variety of other little bignum
1495 tweaks and fixes have also been made continuing on from the audit (see
1499 *) Constify all or almost all d2i, c2i, s2i and r2i functions, along with
1500 associated ASN1, EVP and SSL functions and old ASN1 macros.
1503 *) BN_zero() only needs to set 'top' and 'neg' to zero for correct results,
1504 and this should never fail. So the return value from the use of
1505 BN_set_word() (which can fail due to needless expansion) is now deprecated;
1506 if OPENSSL_NO_DEPRECATED is defined, BN_zero() is a void macro.
1509 *) BN_CTX_get() should return zero-valued bignums, providing the same
1510 initialised value as BN_new().
1511 [Geoff Thorpe, suggested by Ulf Möller]
1513 *) Support for inhibitAnyPolicy certificate extension.
1516 *) An audit of the BIGNUM code is underway, for which debugging code is
1517 enabled when BN_DEBUG is defined. This makes stricter enforcements on what
1518 is considered valid when processing BIGNUMs, and causes execution to
1519 assert() when a problem is discovered. If BN_DEBUG_RAND is defined,
1520 further steps are taken to deliberately pollute unused data in BIGNUM
1521 structures to try and expose faulty code further on. For now, openssl will
1522 (in its default mode of operation) continue to tolerate the inconsistent
1523 forms that it has tolerated in the past, but authors and packagers should
1524 consider trying openssl and their own applications when compiled with
1525 these debugging symbols defined. It will help highlight potential bugs in
1526 their own code, and will improve the test coverage for OpenSSL itself. At
1527 some point, these tighter rules will become openssl's default to improve
1528 maintainability, though the assert()s and other overheads will remain only
1529 in debugging configurations. See bn.h for more details.
1530 [Geoff Thorpe, Nils Larsch, Ulf Möller]
1532 *) BN_CTX_init() has been deprecated, as BN_CTX is an opaque structure
1533 that can only be obtained through BN_CTX_new() (which implicitly
1534 initialises it). The presence of this function only made it possible
1535 to overwrite an existing structure (and cause memory leaks).
1538 *) Because of the callback-based approach for implementing LHASH as a
1539 template type, lh_insert() adds opaque objects to hash-tables and
1540 lh_doall() or lh_doall_arg() are typically used with a destructor callback
1541 to clean up those corresponding objects before destroying the hash table
1542 (and losing the object pointers). So some over-zealous constifications in
1543 LHASH have been relaxed so that lh_insert() does not take (nor store) the
1544 objects as "const" and the lh_doall[_arg] callback wrappers are not
1545 prototyped to have "const" restrictions on the object pointers they are
1546 given (and so aren't required to cast them away any more).
1549 *) The tmdiff.h API was so ugly and minimal that our own timing utility
1550 (speed) prefers to use its own implementation. The two implementations
1551 haven't been consolidated as yet (volunteers?) but the tmdiff API has had
1552 its object type properly exposed (MS_TM) instead of casting to/from "char
1553 *". This may still change yet if someone realises MS_TM and "ms_time_***"
1554 aren't necessarily the greatest nomenclatures - but this is what was used
1555 internally to the implementation so I've used that for now.
1558 *) Ensure that deprecated functions do not get compiled when
1559 OPENSSL_NO_DEPRECATED is defined. Some "openssl" subcommands and a few of
1560 the self-tests were still using deprecated key-generation functions so
1561 these have been updated also.
1564 *) Reorganise PKCS#7 code to separate the digest location functionality
1565 into PKCS7_find_digest(), digest addtion into PKCS7_bio_add_digest().
1566 New function PKCS7_set_digest() to set the digest type for PKCS#7
1567 digestedData type. Add additional code to correctly generate the
1568 digestedData type and add support for this type in PKCS7 initialization
1572 *) New function PKCS7_set0_type_other() this initializes a PKCS7
1573 structure of type "other".
1576 *) Fix prime generation loop in crypto/bn/bn_prime.pl by making
1577 sure the loop does correctly stop and breaking ("division by zero")
1578 modulus operations are not performed. The (pre-generated) prime
1579 table crypto/bn/bn_prime.h was already correct, but it could not be
1580 re-generated on some platforms because of the "division by zero"
1581 situation in the script.
1582 [Ralf S. Engelschall]
1584 *) Update support for ECC-based TLS ciphersuites according to
1585 draft-ietf-tls-ecc-03.txt: the KDF1 key derivation function with
1586 SHA-1 now is only used for "small" curves (where the
1587 representation of a field element takes up to 24 bytes); for
1588 larger curves, the field element resulting from ECDH is directly
1589 used as premaster secret.
1590 [Douglas Stebila (Sun Microsystems Laboratories)]
1592 *) Add code for kP+lQ timings to crypto/ec/ectest.c, and add SEC2
1593 curve secp160r1 to the tests.
1594 [Douglas Stebila (Sun Microsystems Laboratories)]
1596 *) Add the possibility to load symbols globally with DSO.
1597 [Götz Babin-Ebell <babin-ebell@trustcenter.de> via Richard Levitte]
1599 *) Add the functions ERR_set_mark() and ERR_pop_to_mark() for better
1600 control of the error stack.
1603 *) Add support for STORE in ENGINE.
1606 *) Add the STORE type. The intention is to provide a common interface
1607 to certificate and key stores, be they simple file-based stores, or
1608 HSM-type store, or LDAP stores, or...
1609 NOTE: The code is currently UNTESTED and isn't really used anywhere.
1612 *) Add a generic structure called OPENSSL_ITEM. This can be used to
1613 pass a list of arguments to any function as well as provide a way
1614 for a function to pass data back to the caller.
1617 *) Add the functions BUF_strndup() and BUF_memdup(). BUF_strndup()
1618 works like BUF_strdup() but can be used to duplicate a portion of
1619 a string. The copy gets NUL-terminated. BUF_memdup() duplicates
1623 *) Add the function sk_find_ex() which works like sk_find(), but will
1624 return an index to an element even if an exact match couldn't be
1625 found. The index is guaranteed to point at the element where the
1626 searched-for key would be inserted to preserve sorting order.
1629 *) Add the function OBJ_bsearch_ex() which works like OBJ_bsearch() but
1630 takes an extra flags argument for optional functionality. Currently,
1631 the following flags are defined:
1633 OBJ_BSEARCH_VALUE_ON_NOMATCH
1634 This one gets OBJ_bsearch_ex() to return a pointer to the first
1635 element where the comparing function returns a negative or zero
1638 OBJ_BSEARCH_FIRST_VALUE_ON_MATCH
1639 This one gets OBJ_bsearch_ex() to return a pointer to the first
1640 element where the comparing function returns zero. This is useful
1641 if there are more than one element where the comparing function
1645 *) Make it possible to create self-signed certificates with 'openssl ca'
1646 in such a way that the self-signed certificate becomes part of the
1647 CA database and uses the same mechanisms for serial number generation
1648 as all other certificate signing. The new flag '-selfsign' enables
1649 this functionality. Adapt CA.sh and CA.pl.in.
1652 *) Add functionality to check the public key of a certificate request
1653 against a given private. This is useful to check that a certificate
1654 request can be signed by that key (self-signing).
1657 *) Make it possible to have multiple active certificates with the same
1658 subject in the CA index file. This is done only if the keyword
1659 'unique_subject' is set to 'no' in the main CA section (default
1660 if 'CA_default') of the configuration file. The value is saved
1661 with the database itself in a separate index attribute file,
1662 named like the index file with '.attr' appended to the name.
1665 *) Generate muti valued AVAs using '+' notation in config files for
1669 *) Support for nameConstraints certificate extension.
1672 *) Support for policyConstraints certificate extension.
1675 *) Support for policyMappings certificate extension.
1678 *) Make sure the default DSA_METHOD implementation only uses its
1679 dsa_mod_exp() and/or bn_mod_exp() handlers if they are non-NULL,
1680 and change its own handlers to be NULL so as to remove unnecessary
1681 indirection. This lets alternative implementations fallback to the
1682 default implementation more easily.
1685 *) Support for directoryName in GeneralName related extensions
1689 *) Make it possible to link applications using Makefile.shared.
1690 Make that possible even when linking against static libraries!
1693 *) Support for single pass processing for S/MIME signing. This now
1694 means that S/MIME signing can be done from a pipe, in addition
1695 cleartext signing (multipart/signed type) is effectively streaming
1696 and the signed data does not need to be all held in memory.
1698 This is done with a new flag PKCS7_STREAM. When this flag is set
1699 PKCS7_sign() only initializes the PKCS7 structure and the actual signing
1700 is done after the data is output (and digests calculated) in
1701 SMIME_write_PKCS7().
1704 *) Add full support for -rpath/-R, both in shared libraries and
1705 applications, at least on the platforms where it's known how
1709 *) In crypto/ec/ec_mult.c, implement fast point multiplication with
1710 precomputation, based on wNAF splitting: EC_GROUP_precompute_mult()
1711 will now compute a table of multiples of the generator that
1712 makes subsequent invocations of EC_POINTs_mul() or EC_POINT_mul()
1713 faster (notably in the case of a single point multiplication,
1714 scalar * generator).
1715 [Nils Larsch, Bodo Moeller]
1717 *) IPv6 support for certificate extensions. The various extensions
1718 which use the IP:a.b.c.d can now take IPv6 addresses using the
1719 formats of RFC1884 2.2 . IPv6 addresses are now also displayed
1723 *) Added an ENGINE that implements RSA by performing private key
1724 exponentiations with the GMP library. The conversions to and from
1725 GMP's mpz_t format aren't optimised nor are any montgomery forms
1726 cached, and on x86 it appears OpenSSL's own performance has caught up.
1727 However there are likely to be other architectures where GMP could
1728 provide a boost. This ENGINE is not built in by default, but it can be
1729 specified at Configure time and should be accompanied by the necessary
1730 linker additions, eg;
1731 ./config -DOPENSSL_USE_GMP -lgmp
1734 *) "openssl engine" will not display ENGINE/DSO load failure errors when
1735 testing availability of engines with "-t" - the old behaviour is
1736 produced by increasing the feature's verbosity with "-tt".
1739 *) ECDSA routines: under certain error conditions uninitialized BN objects
1740 could be freed. Solution: make sure initialization is performed early
1741 enough. (Reported and fix supplied by Nils Larsch <nla@trustcenter.de>
1745 *) Key-generation can now be implemented in RSA_METHOD, DSA_METHOD
1746 and DH_METHOD (eg. by ENGINE implementations) to override the normal
1747 software implementations. For DSA and DH, parameter generation can
1748 also be overriden by providing the appropriate method callbacks.
1751 *) Change the "progress" mechanism used in key-generation and
1752 primality testing to functions that take a new BN_GENCB pointer in
1753 place of callback/argument pairs. The new API functions have "_ex"
1754 postfixes and the older functions are reimplemented as wrappers for
1755 the new ones. The OPENSSL_NO_DEPRECATED symbol can be used to hide
1756 declarations of the old functions to help (graceful) attempts to
1757 migrate to the new functions. Also, the new key-generation API
1758 functions operate on a caller-supplied key-structure and return
1759 success/failure rather than returning a key or NULL - this is to
1760 help make "keygen" another member function of RSA_METHOD etc.
1762 Example for using the new callback interface:
1764 int (*my_callback)(int a, int b, BN_GENCB *cb) = ...;
1768 BN_GENCB_set(&my_cb, my_callback, my_arg);
1770 return BN_is_prime_ex(some_bignum, BN_prime_checks, NULL, &cb);
1771 /* For the meaning of a, b in calls to my_callback(), see the
1772 * documentation of the function that calls the callback.
1773 * cb will point to my_cb; my_arg can be retrieved as cb->arg.
1774 * my_callback should return 1 if it wants BN_is_prime_ex()
1775 * to continue, or 0 to stop.
1780 *) Change the ZLIB compression method to be stateful, and make it
1781 available to TLS with the number defined in
1782 draft-ietf-tls-compression-04.txt.
1785 *) Add the ASN.1 structures and functions for CertificatePair, which
1786 is defined as follows (according to X.509_4thEditionDraftV6.pdf):
1788 CertificatePair ::= SEQUENCE {
1789 forward [0] Certificate OPTIONAL,
1790 reverse [1] Certificate OPTIONAL,
1791 -- at least one of the pair shall be present -- }
1793 Also implement the PEM functions to read and write certificate
1794 pairs, and defined the PEM tag as "CERTIFICATE PAIR".
1796 This needed to be defined, mostly for the sake of the LDAP
1797 attribute crossCertificatePair, but may prove useful elsewhere as
1801 *) Make it possible to inhibit symlinking of shared libraries in
1802 Makefile.shared, for Cygwin's sake.
1805 *) Extend the BIGNUM API by creating a function
1806 void BN_set_negative(BIGNUM *a, int neg);
1807 and a macro that behave like
1808 int BN_is_negative(const BIGNUM *a);
1810 to avoid the need to access 'a->neg' directly in applications.
1813 *) Implement fast modular reduction for pseudo-Mersenne primes
1814 used in NIST curves (crypto/bn/bn_nist.c, crypto/ec/ecp_nist.c).
1815 EC_GROUP_new_curve_GFp() will now automatically use this
1817 [Nils Larsch <nla@trustcenter.de>]
1819 *) Add new lock type (CRYPTO_LOCK_BN).
1822 *) Change the ENGINE framework to automatically load engines
1823 dynamically from specific directories unless they could be
1824 found to already be built in or loaded. Move all the
1825 current engines except for the cryptodev one to a new
1827 The engines in engines/ are built as shared libraries if
1828 the "shared" options was given to ./Configure or ./config.
1829 Otherwise, they are inserted in libcrypto.a.
1830 /usr/local/ssl/engines is the default directory for dynamic
1831 engines, but that can be overriden at configure time through
1832 the usual use of --prefix and/or --openssldir, and at run
1833 time with the environment variable OPENSSL_ENGINES.
1834 [Geoff Thorpe and Richard Levitte]
1836 *) Add Makefile.shared, a helper makefile to build shared
1837 libraries. Addapt Makefile.org.
1840 *) Add version info to Win32 DLLs.
1841 [Peter 'Luna' Runestig" <peter@runestig.com>]
1843 *) Add new 'medium level' PKCS#12 API. Certificates and keys
1844 can be added using this API to created arbitrary PKCS#12
1845 files while avoiding the low level API.
1847 New options to PKCS12_create(), key or cert can be NULL and
1848 will then be omitted from the output file. The encryption
1849 algorithm NIDs can be set to -1 for no encryption, the mac
1850 iteration count can be set to 0 to omit the mac.
1852 Enhance pkcs12 utility by making the -nokeys and -nocerts
1853 options work when creating a PKCS#12 file. New option -nomac
1854 to omit the mac, NONE can be set for an encryption algorithm.
1855 New code is modified to use the enhanced PKCS12_create()
1856 instead of the low level API.
1859 *) Extend ASN1 encoder to support indefinite length constructed
1860 encoding. This can output sequences tags and octet strings in
1861 this form. Modify pk7_asn1.c to support indefinite length
1862 encoding. This is experimental and needs additional code to
1863 be useful, such as an ASN1 bio and some enhanced streaming
1866 Extend template encode functionality so that tagging is passed
1867 down to the template encoder.
1870 *) Let 'openssl req' fail if an argument to '-newkey' is not
1871 recognized instead of using RSA as a default.
1874 *) Add support for ECC-based ciphersuites from draft-ietf-tls-ecc-01.txt.
1875 As these are not official, they are not included in "ALL";
1876 the "ECCdraft" ciphersuite group alias can be used to select them.
1877 [Vipul Gupta and Sumit Gupta (Sun Microsystems Laboratories)]
1879 *) Add ECDH engine support.
1880 [Nils Gura and Douglas Stebila (Sun Microsystems Laboratories)]
1882 *) Add ECDH in new directory crypto/ecdh/.
1883 [Douglas Stebila (Sun Microsystems Laboratories)]
1885 *) Let BN_rand_range() abort with an error after 100 iterations
1886 without success (which indicates a broken PRNG).
1889 *) Change BN_mod_sqrt() so that it verifies that the input value
1890 is really the square of the return value. (Previously,
1891 BN_mod_sqrt would show GIGO behaviour.)
1894 *) Add named elliptic curves over binary fields from X9.62, SECG,
1895 and WAP/WTLS; add OIDs that were still missing.
1897 [Sheueling Chang Shantz and Douglas Stebila
1898 (Sun Microsystems Laboratories)]
1900 *) Extend the EC library for elliptic curves over binary fields
1901 (new files ec2_smpl.c, ec2_smpt.c, ec2_mult.c in crypto/ec/).
1904 EC_GF2m_simple_method
1908 EC_GROUP_new_curve_GF2m
1909 EC_GROUP_set_curve_GF2m
1910 EC_GROUP_get_curve_GF2m
1911 EC_POINT_set_affine_coordinates_GF2m
1912 EC_POINT_get_affine_coordinates_GF2m
1913 EC_POINT_set_compressed_coordinates_GF2m
1915 Point compression for binary fields is disabled by default for
1916 patent reasons (compile with OPENSSL_EC_BIN_PT_COMP defined to
1919 As binary polynomials are represented as BIGNUMs, various members
1920 of the EC_GROUP and EC_POINT data structures can be shared
1921 between the implementations for prime fields and binary fields;
1922 the above ..._GF2m functions (except for EX_GROUP_new_curve_GF2m)
1923 are essentially identical to their ..._GFp counterparts.
1924 (For simplicity, the '..._GFp' prefix has been dropped from
1925 various internal method names.)
1927 An internal 'field_div' method (similar to 'field_mul' and
1928 'field_sqr') has been added; this is used only for binary fields.
1930 [Sheueling Chang Shantz and Douglas Stebila
1931 (Sun Microsystems Laboratories)]
1933 *) Optionally dispatch EC_POINT_mul(), EC_POINT_precompute_mult()
1934 through methods ('mul', 'precompute_mult').
1936 The generic implementations (now internally called 'ec_wNAF_mul'
1937 and 'ec_wNAF_precomputed_mult') remain the default if these
1938 methods are undefined.
1940 [Sheueling Chang Shantz and Douglas Stebila
1941 (Sun Microsystems Laboratories)]
1943 *) New function EC_GROUP_get_degree, which is defined through
1944 EC_METHOD. For curves over prime fields, this returns the bit
1945 length of the modulus.
1947 [Sheueling Chang Shantz and Douglas Stebila
1948 (Sun Microsystems Laboratories)]
1950 *) New functions EC_GROUP_dup, EC_POINT_dup.
1951 (These simply call ..._new and ..._copy).
1953 [Sheueling Chang Shantz and Douglas Stebila
1954 (Sun Microsystems Laboratories)]
1956 *) Add binary polynomial arithmetic software in crypto/bn/bn_gf2m.c.
1957 Polynomials are represented as BIGNUMs (where the sign bit is not
1958 used) in the following functions [macros]:
1961 BN_GF2m_sub [= BN_GF2m_add]
1962 BN_GF2m_mod [wrapper for BN_GF2m_mod_arr]
1963 BN_GF2m_mod_mul [wrapper for BN_GF2m_mod_mul_arr]
1964 BN_GF2m_mod_sqr [wrapper for BN_GF2m_mod_sqr_arr]
1966 BN_GF2m_mod_exp [wrapper for BN_GF2m_mod_exp_arr]
1967 BN_GF2m_mod_sqrt [wrapper for BN_GF2m_mod_sqrt_arr]
1968 BN_GF2m_mod_solve_quad [wrapper for BN_GF2m_mod_solve_quad_arr]
1969 BN_GF2m_cmp [= BN_ucmp]
1971 (Note that only the 'mod' functions are actually for fields GF(2^m).
1972 BN_GF2m_add() is misnomer, but this is for the sake of consistency.)
1974 For some functions, an the irreducible polynomial defining a
1975 field can be given as an 'unsigned int[]' with strictly
1976 decreasing elements giving the indices of those bits that are set;
1977 i.e., p[] represents the polynomial
1978 f(t) = t^p[0] + t^p[1] + ... + t^p[k]
1980 p[0] > p[1] > ... > p[k] = 0.
1981 This applies to the following functions:
1986 BN_GF2m_mod_inv_arr [wrapper for BN_GF2m_mod_inv]
1987 BN_GF2m_mod_div_arr [wrapper for BN_GF2m_mod_div]
1989 BN_GF2m_mod_sqrt_arr
1990 BN_GF2m_mod_solve_quad_arr
1994 Conversion can be performed by the following functions:
1999 bntest.c has additional tests for binary polynomial arithmetic.
2001 Two implementations for BN_GF2m_mod_div() are available.
2002 The default algorithm simply uses BN_GF2m_mod_inv() and
2003 BN_GF2m_mod_mul(). The alternative algorithm is compiled in only
2004 if OPENSSL_SUN_GF2M_DIV is defined (patent pending; read the
2005 copyright notice in crypto/bn/bn_gf2m.c before enabling it).
2007 [Sheueling Chang Shantz and Douglas Stebila
2008 (Sun Microsystems Laboratories)]
2010 *) Add new error code 'ERR_R_DISABLED' that can be used when some
2011 functionality is disabled at compile-time.
2012 [Douglas Stebila <douglas.stebila@sun.com>]
2014 *) Change default behaviour of 'openssl asn1parse' so that more
2015 information is visible when viewing, e.g., a certificate:
2017 Modify asn1_parse2 (crypto/asn1/asn1_par.c) so that in non-'dump'
2018 mode the content of non-printable OCTET STRINGs is output in a
2019 style similar to INTEGERs, but with '[HEX DUMP]' prepended to
2020 avoid the appearance of a printable string.
2021 [Nils Larsch <nla@trustcenter.de>]
2023 *) Add 'asn1_flag' and 'asn1_form' member to EC_GROUP with access
2025 EC_GROUP_set_asn1_flag()
2026 EC_GROUP_get_asn1_flag()
2027 EC_GROUP_set_point_conversion_form()
2028 EC_GROUP_get_point_conversion_form()
2029 These control ASN1 encoding details:
2030 - Curves (i.e., groups) are encoded explicitly unless asn1_flag
2031 has been set to OPENSSL_EC_NAMED_CURVE.
2032 - Points are encoded in uncompressed form by default; options for
2033 asn1_for are as for point2oct, namely
2034 POINT_CONVERSION_COMPRESSED
2035 POINT_CONVERSION_UNCOMPRESSED
2036 POINT_CONVERSION_HYBRID
2038 Also add 'seed' and 'seed_len' members to EC_GROUP with access
2041 EC_GROUP_get0_seed()
2042 EC_GROUP_get_seed_len()
2043 This is used only for ASN1 purposes (so far).
2044 [Nils Larsch <nla@trustcenter.de>]
2046 *) Add 'field_type' member to EC_METHOD, which holds the NID
2047 of the appropriate field type OID. The new function
2048 EC_METHOD_get_field_type() returns this value.
2049 [Nils Larsch <nla@trustcenter.de>]
2054 EC_POINT_point2hex()
2055 EC_POINT_hex2point()
2056 providing useful interfaces to EC_POINT_point2oct() and
2057 EC_POINT_oct2point().
2058 [Nils Larsch <nla@trustcenter.de>]
2060 *) Change internals of the EC library so that the functions
2061 EC_GROUP_set_generator()
2062 EC_GROUP_get_generator()
2063 EC_GROUP_get_order()
2064 EC_GROUP_get_cofactor()
2065 are implemented directly in crypto/ec/ec_lib.c and not dispatched
2066 to methods, which would lead to unnecessary code duplication when
2067 adding different types of curves.
2068 [Nils Larsch <nla@trustcenter.de> with input by Bodo Moeller]
2070 *) Implement compute_wNAF (crypto/ec/ec_mult.c) without BIGNUM
2071 arithmetic, and such that modified wNAFs are generated
2072 (which avoid length expansion in many cases).
2075 *) Add a function EC_GROUP_check_discriminant() (defined via
2076 EC_METHOD) that verifies that the curve discriminant is non-zero.
2078 Add a function EC_GROUP_check() that makes some sanity tests
2079 on a EC_GROUP, its generator and order. This includes
2080 EC_GROUP_check_discriminant().
2081 [Nils Larsch <nla@trustcenter.de>]
2083 *) Add ECDSA in new directory crypto/ecdsa/.
2085 Add applications 'openssl ecparam' and 'openssl ecdsa'
2086 (these are based on 'openssl dsaparam' and 'openssl dsa').
2088 ECDSA support is also included in various other files across the
2089 library. Most notably,
2090 - 'openssl req' now has a '-newkey ecdsa:file' option;
2091 - EVP_PKCS82PKEY (crypto/evp/evp_pkey.c) now can handle ECDSA;
2092 - X509_PUBKEY_get (crypto/asn1/x_pubkey.c) and
2093 d2i_PublicKey (crypto/asn1/d2i_pu.c) have been modified to make
2094 them suitable for ECDSA where domain parameters must be
2095 extracted before the specific public key;
2096 - ECDSA engine support has been added.
2097 [Nils Larsch <nla@trustcenter.de>]
2099 *) Include some named elliptic curves, and add OIDs from X9.62,
2100 SECG, and WAP/WTLS. Each curve can be obtained from the new
2102 EC_GROUP_new_by_curve_name(),
2103 and the list of available named curves can be obtained with
2104 EC_get_builtin_curves().
2105 Also add a 'curve_name' member to EC_GROUP objects, which can be
2107 EC_GROUP_set_curve_name()
2108 EC_GROUP_get_curve_name()
2109 [Nils Larsch <larsch@trustcenter.de, Bodo Moeller]
2111 *) Remove a few calls to bn_wexpand() in BN_sqr() (the one in there
2112 was actually never needed) and in BN_mul(). The removal in BN_mul()
2113 required a small change in bn_mul_part_recursive() and the addition
2114 of the functions bn_cmp_part_words(), bn_sub_part_words() and
2115 bn_add_part_words(), which do the same thing as bn_cmp_words(),
2116 bn_sub_words() and bn_add_words() except they take arrays with
2120 Changes between 0.9.7m and 0.9.7n [xx XXX xxxx]
2122 *) In the SSL/TLS server implementation, be strict about session ID
2123 context matching (which matters if an application uses a single
2124 external cache for different purposes). Previously,
2125 out-of-context reuse was forbidden only if SSL_VERIFY_PEER was
2126 set. This did ensure strict client verification, but meant that,
2127 with applications using a single external cache for quite
2128 different requirements, clients could circumvent ciphersuite
2129 restrictions for a given session ID context by starting a session
2130 in a different context.
2133 Changes between 0.9.7l and 0.9.7m [23 Feb 2007]
2135 *) Cleanse PEM buffers before freeing them since they may contain
2137 [Benjamin Bennett <ben@psc.edu>]
2139 *) Include "!eNULL" in SSL_DEFAULT_CIPHER_LIST to make sure that
2140 a ciphersuite string such as "DEFAULT:RSA" cannot enable
2141 authentication-only ciphersuites.
2144 *) Since AES128 and AES256 share a single mask bit in the logic of
2145 ssl/ssl_ciph.c, the code for masking out disabled ciphers needs a
2146 kludge to work properly if AES128 is available and AES256 isn't.
2149 *) Expand security boundary to match 1.1.1 module.
2152 *) Remove redundant features: hash file source, editing of test vectors
2153 modify fipsld to use external fips_premain.c signature.
2156 *) New perl script mkfipsscr.pl to create shell scripts or batch files to
2157 run algorithm test programs.
2160 *) Make algorithm test programs more tolerant of whitespace.
2163 *) Have SSL/TLS server implementation tolerate "mismatched" record
2164 protocol version while receiving ClientHello even if the
2165 ClientHello is fragmented. (The server can't insist on the
2166 particular protocol version it has chosen before the ServerHello
2167 message has informed the client about his choice.)
2170 *) Load error codes if they are not already present instead of using a
2171 static variable. This allows them to be cleanly unloaded and reloaded.
2174 Changes between 0.9.7k and 0.9.7l [28 Sep 2006]
2176 *) Introduce limits to prevent malicious keys being able to
2177 cause a denial of service. (CVE-2006-2940)
2178 [Steve Henson, Bodo Moeller]
2180 *) Fix ASN.1 parsing of certain invalid structures that can result
2181 in a denial of service. (CVE-2006-2937) [Steve Henson]
2183 *) Fix buffer overflow in SSL_get_shared_ciphers() function.
2184 (CVE-2006-3738) [Tavis Ormandy and Will Drewry, Google Security Team]
2186 *) Fix SSL client code which could crash if connecting to a
2187 malicious SSLv2 server. (CVE-2006-4343)
2188 [Tavis Ormandy and Will Drewry, Google Security Team]
2190 *) Change ciphersuite string processing so that an explicit
2191 ciphersuite selects this one ciphersuite (so that "AES256-SHA"
2192 will no longer include "AES128-SHA"), and any other similar
2193 ciphersuite (same bitmap) from *other* protocol versions (so that
2194 "RC4-MD5" will still include both the SSL 2.0 ciphersuite and the
2195 SSL 3.0/TLS 1.0 ciphersuite). This is a backport combining
2196 changes from 0.9.8b and 0.9.8d.
2199 Changes between 0.9.7j and 0.9.7k [05 Sep 2006]
2201 *) Avoid PKCS #1 v1.5 signature attack discovered by Daniel Bleichenbacher
2202 (CVE-2006-4339) [Ben Laurie and Google Security Team]
2204 *) Change the Unix randomness entropy gathering to use poll() when
2205 possible instead of select(), since the latter has some
2206 undesirable limitations.
2207 [Darryl Miles via Richard Levitte and Bodo Moeller]
2209 *) Disable rogue ciphersuites:
2211 - SSLv2 0x08 0x00 0x80 ("RC4-64-MD5")
2212 - SSLv3/TLSv1 0x00 0x61 ("EXP1024-RC2-CBC-MD5")
2213 - SSLv3/TLSv1 0x00 0x60 ("EXP1024-RC4-MD5")
2215 The latter two were purportedly from
2216 draft-ietf-tls-56-bit-ciphersuites-0[01].txt, but do not really
2219 Also deactive the remaining ciphersuites from
2220 draft-ietf-tls-56-bit-ciphersuites-01.txt. These are just as
2221 unofficial, and the ID has long expired.
2224 *) Fix RSA blinding Heisenbug (problems sometimes occured on
2225 dual-core machines) and other potential thread-safety issues.
2228 Changes between 0.9.7i and 0.9.7j [04 May 2006]
2230 *) Adapt fipsld and the build system to link against the validated FIPS
2231 module in FIPS mode.
2234 *) Fixes for VC++ 2005 build under Windows.
2237 *) Add new Windows build target VC-32-GMAKE for VC++. This uses GNU make
2238 from a Windows bash shell such as MSYS. It is autodetected from the
2239 "config" script when run from a VC++ environment. Modify standard VC++
2240 build to use fipscanister.o from the GNU make build.
2243 Changes between 0.9.7h and 0.9.7i [14 Oct 2005]
2245 *) Wrapped the definition of EVP_MAX_MD_SIZE in a #ifdef OPENSSL_FIPS.
2246 The value now differs depending on if you build for FIPS or not.
2247 BEWARE! A program linked with a shared FIPSed libcrypto can't be
2248 safely run with a non-FIPSed libcrypto, as it may crash because of
2249 the difference induced by this change.
2252 Changes between 0.9.7g and 0.9.7h [11 Oct 2005]
2254 *) Remove the functionality of SSL_OP_MSIE_SSLV2_RSA_PADDING
2255 (part of SSL_OP_ALL). This option used to disable the
2256 countermeasure against man-in-the-middle protocol-version
2257 rollback in the SSL 2.0 server implementation, which is a bad
2258 idea. (CVE-2005-2969)
2260 [Bodo Moeller; problem pointed out by Yutaka Oiwa (Research Center
2261 for Information Security, National Institute of Advanced Industrial
2262 Science and Technology [AIST], Japan)]
2264 *) Minimal support for X9.31 signatures and PSS padding modes. This is
2265 mainly for FIPS compliance and not fully integrated at this stage.
2268 *) For DSA signing, unless DSA_FLAG_NO_EXP_CONSTTIME is set, perform
2269 the exponentiation using a fixed-length exponent. (Otherwise,
2270 the information leaked through timing could expose the secret key
2271 after many signatures; cf. Bleichenbacher's attack on DSA with
2275 *) Make a new fixed-window mod_exp implementation the default for
2276 RSA, DSA, and DH private-key operations so that the sequence of
2277 squares and multiplies and the memory access pattern are
2278 independent of the particular secret key. This will mitigate
2279 cache-timing and potential related attacks.
2281 BN_mod_exp_mont_consttime() is the new exponentiation implementation,
2282 and this is automatically used by BN_mod_exp_mont() if the new flag
2283 BN_FLG_EXP_CONSTTIME is set for the exponent. RSA, DSA, and DH
2284 will use this BN flag for private exponents unless the flag
2285 RSA_FLAG_NO_EXP_CONSTTIME, DSA_FLAG_NO_EXP_CONSTTIME, or
2286 DH_FLAG_NO_EXP_CONSTTIME, respectively, is set.
2288 [Matthew D Wood (Intel Corp), with some changes by Bodo Moeller]
2290 *) Change the client implementation for SSLv23_method() and
2291 SSLv23_client_method() so that is uses the SSL 3.0/TLS 1.0
2292 Client Hello message format if the SSL_OP_NO_SSLv2 option is set.
2293 (Previously, the SSL 2.0 backwards compatible Client Hello
2294 message format would be used even with SSL_OP_NO_SSLv2.)
2297 *) Add support for smime-type MIME parameter in S/MIME messages which some
2301 *) New function BN_MONT_CTX_set_locked() to set montgomery parameters in
2302 a threadsafe manner. Modify rsa code to use new function and add calls
2303 to dsa and dh code (which had race conditions before).
2306 *) Include the fixed error library code in the C error file definitions
2307 instead of fixing them up at runtime. This keeps the error code
2308 structures constant.
2311 Changes between 0.9.7f and 0.9.7g [11 Apr 2005]
2313 [NB: OpenSSL 0.9.7h and later 0.9.7 patch levels were released after
2316 *) Fixes for newer kerberos headers. NB: the casts are needed because
2317 the 'length' field is signed on one version and unsigned on another
2318 with no (?) obvious way to tell the difference, without these VC++
2319 complains. Also the "definition" of FAR (blank) is no longer included
2320 nor is the error ENOMEM. KRB5_PRIVATE has to be set to 1 to pick up
2321 some needed definitions.
2324 *) Undo Cygwin change.
2327 *) Added support for proxy certificates according to RFC 3820.
2328 Because they may be a security thread to unaware applications,
2329 they must be explicitely allowed in run-time. See
2330 docs/HOWTO/proxy_certificates.txt for further information.
2333 Changes between 0.9.7e and 0.9.7f [22 Mar 2005]
2335 *) Use (SSL_RANDOM_VALUE - 4) bytes of pseudo random data when generating
2336 server and client random values. Previously
2337 (SSL_RANDOM_VALUE - sizeof(time_t)) would be used which would result in
2338 less random data when sizeof(time_t) > 4 (some 64 bit platforms).
2340 This change has negligible security impact because:
2342 1. Server and client random values still have 24 bytes of pseudo random
2345 2. Server and client random values are sent in the clear in the initial
2348 3. The master secret is derived using the premaster secret (48 bytes in
2349 size for static RSA ciphersuites) as well as client server and random
2352 The OpenSSL team would like to thank the UK NISCC for bringing this issue
2355 [Stephen Henson, reported by UK NISCC]
2357 *) Use Windows randomness collection on Cygwin.
2360 *) Fix hang in EGD/PRNGD query when communication socket is closed
2361 prematurely by EGD/PRNGD.
2362 [Darren Tucker <dtucker@zip.com.au> via Lutz Jänicke, resolves #1014]
2364 *) Prompt for pass phrases when appropriate for PKCS12 input format.
2367 *) Back-port of selected performance improvements from development
2368 branch, as well as improved support for PowerPC platforms.
2371 *) Add lots of checks for memory allocation failure, error codes to indicate
2372 failure and freeing up memory if a failure occurs.
2373 [Nauticus Networks SSL Team <openssl@nauticusnet.com>, Steve Henson]
2375 *) Add new -passin argument to dgst.
2378 *) Perform some character comparisons of different types in X509_NAME_cmp:
2379 this is needed for some certificates that reencode DNs into UTF8Strings
2380 (in violation of RFC3280) and can't or wont issue name rollover
2384 *) Make an explicit check during certificate validation to see that
2385 the CA setting in each certificate on the chain is correct. As a
2386 side effect always do the following basic checks on extensions,
2387 not just when there's an associated purpose to the check:
2389 - if there is an unhandled critical extension (unless the user
2390 has chosen to ignore this fault)
2391 - if the path length has been exceeded (if one is set at all)
2392 - that certain extensions fit the associated purpose (if one has
2396 Changes between 0.9.7d and 0.9.7e [25 Oct 2004]
2398 *) Avoid a race condition when CRLs are checked in a multi threaded
2399 environment. This would happen due to the reordering of the revoked
2400 entries during signature checking and serial number lookup. Now the
2401 encoding is cached and the serial number sort performed under a lock.
2402 Add new STACK function sk_is_sorted().
2405 *) Add Delta CRL to the extension code.
2408 *) Various fixes to s3_pkt.c so alerts are sent properly.
2409 [David Holmes <d.holmes@f5.com>]
2411 *) Reduce the chances of duplicate issuer name and serial numbers (in
2412 violation of RFC3280) using the OpenSSL certificate creation utilities.
2413 This is done by creating a random 64 bit value for the initial serial
2414 number when a serial number file is created or when a self signed
2415 certificate is created using 'openssl req -x509'. The initial serial
2416 number file is created using 'openssl x509 -next_serial' in CA.pl
2417 rather than being initialized to 1.
2420 Changes between 0.9.7c and 0.9.7d [17 Mar 2004]
2422 *) Fix null-pointer assignment in do_change_cipher_spec() revealed
2423 by using the Codenomicon TLS Test Tool (CVE-2004-0079)
2424 [Joe Orton, Steve Henson]
2426 *) Fix flaw in SSL/TLS handshaking when using Kerberos ciphersuites
2428 [Joe Orton, Steve Henson]
2430 *) Make it possible to have multiple active certificates with the same
2431 subject in the CA index file. This is done only if the keyword
2432 'unique_subject' is set to 'no' in the main CA section (default
2433 if 'CA_default') of the configuration file. The value is saved
2434 with the database itself in a separate index attribute file,
2435 named like the index file with '.attr' appended to the name.
2438 *) X509 verify fixes. Disable broken certificate workarounds when
2439 X509_V_FLAGS_X509_STRICT is set. Check CRL issuer has cRLSign set if
2440 keyUsage extension present. Don't accept CRLs with unhandled critical
2441 extensions: since verify currently doesn't process CRL extensions this
2442 rejects a CRL with *any* critical extensions. Add new verify error codes
2446 *) When creating an OCSP nonce use an OCTET STRING inside the extnValue.
2447 A clarification of RFC2560 will require the use of OCTET STRINGs and
2448 some implementations cannot handle the current raw format. Since OpenSSL
2449 copies and compares OCSP nonces as opaque blobs without any attempt at
2450 parsing them this should not create any compatibility issues.
2453 *) New md flag EVP_MD_CTX_FLAG_REUSE this allows md_data to be reused when
2454 calling EVP_MD_CTX_copy_ex() to avoid calling OPENSSL_malloc(). Without
2455 this HMAC (and other) operations are several times slower than OpenSSL
2459 *) Print out GeneralizedTime and UTCTime in ASN1_STRING_print_ex().
2460 [Peter Sylvester <Peter.Sylvester@EdelWeb.fr>]
2462 *) Use the correct content when signing type "other".
2465 Changes between 0.9.7b and 0.9.7c [30 Sep 2003]
2467 *) Fix various bugs revealed by running the NISCC test suite:
2469 Stop out of bounds reads in the ASN1 code when presented with
2470 invalid tags (CVE-2003-0543 and CVE-2003-0544).
2472 Free up ASN1_TYPE correctly if ANY type is invalid (CVE-2003-0545).
2474 If verify callback ignores invalid public key errors don't try to check
2475 certificate signature with the NULL public key.
2479 *) New -ignore_err option in ocsp application to stop the server
2480 exiting on the first error in a request.
2483 *) In ssl3_accept() (ssl/s3_srvr.c) only accept a client certificate
2484 if the server requested one: as stated in TLS 1.0 and SSL 3.0
2488 *) In ssl3_get_client_hello() (ssl/s3_srvr.c), tolerate additional
2489 extra data after the compression methods not only for TLS 1.0
2490 but also for SSL 3.0 (as required by the specification).
2491 [Bodo Moeller; problem pointed out by Matthias Loepfe]
2493 *) Change X509_certificate_type() to mark the key as exported/exportable
2494 when it's 512 *bits* long, not 512 bytes.
2497 *) Change AES_cbc_encrypt() so it outputs exact multiple of
2498 blocks during encryption.
2501 *) Various fixes to base64 BIO and non blocking I/O. On write
2502 flushes were not handled properly if the BIO retried. On read
2503 data was not being buffered properly and had various logic bugs.
2504 This also affects blocking I/O when the data being decoded is a
2508 *) Various S/MIME bugfixes and compatibility changes:
2509 output correct application/pkcs7 MIME type if
2510 PKCS7_NOOLDMIMETYPE is set. Tolerate some broken signatures.
2511 Output CR+LF for EOL if PKCS7_CRLFEOL is set (this makes opening
2512 of files as .eml work). Correctly handle very long lines in MIME
2516 Changes between 0.9.7a and 0.9.7b [10 Apr 2003]
2518 *) Countermeasure against the Klima-Pokorny-Rosa extension of
2519 Bleichbacher's attack on PKCS #1 v1.5 padding: treat
2520 a protocol version number mismatch like a decryption error
2521 in ssl3_get_client_key_exchange (ssl/s3_srvr.c).
2524 *) Turn on RSA blinding by default in the default implementation
2525 to avoid a timing attack. Applications that don't want it can call
2526 RSA_blinding_off() or use the new flag RSA_FLAG_NO_BLINDING.
2527 They would be ill-advised to do so in most cases.
2528 [Ben Laurie, Steve Henson, Geoff Thorpe, Bodo Moeller]
2530 *) Change RSA blinding code so that it works when the PRNG is not
2531 seeded (in this case, the secret RSA exponent is abused as
2532 an unpredictable seed -- if it is not unpredictable, there
2533 is no point in blinding anyway). Make RSA blinding thread-safe
2534 by remembering the creator's thread ID in rsa->blinding and
2535 having all other threads use local one-time blinding factors
2536 (this requires more computation than sharing rsa->blinding, but
2537 avoids excessive locking; and if an RSA object is not shared
2538 between threads, blinding will still be very fast).
2541 *) Fixed a typo bug that would cause ENGINE_set_default() to set an
2542 ENGINE as defaults for all supported algorithms irrespective of
2543 the 'flags' parameter. 'flags' is now honoured, so applications
2544 should make sure they are passing it correctly.
2547 *) Target "mingw" now allows native Windows code to be generated in
2548 the Cygwin environment as well as with the MinGW compiler.
2551 Changes between 0.9.7 and 0.9.7a [19 Feb 2003]
2553 *) In ssl3_get_record (ssl/s3_pkt.c), minimize information leaked
2554 via timing by performing a MAC computation even if incorrrect
2555 block cipher padding has been found. This is a countermeasure
2556 against active attacks where the attacker has to distinguish
2557 between bad padding and a MAC verification error. (CVE-2003-0078)
2559 [Bodo Moeller; problem pointed out by Brice Canvel (EPFL),
2560 Alain Hiltgen (UBS), Serge Vaudenay (EPFL), and
2561 Martin Vuagnoux (EPFL, Ilion)]
2563 *) Make the no-err option work as intended. The intention with no-err
2564 is not to have the whole error stack handling routines removed from
2565 libcrypto, it's only intended to remove all the function name and
2566 reason texts, thereby removing some of the footprint that may not
2567 be interesting if those errors aren't displayed anyway.
2569 NOTE: it's still possible for any application or module to have it's
2570 own set of error texts inserted. The routines are there, just not
2571 used by default when no-err is given.
2574 *) Add support for FreeBSD on IA64.
2575 [dirk.meyer@dinoex.sub.org via Richard Levitte, resolves #454]
2577 *) Adjust DES_cbc_cksum() so it returns the same value as the MIT
2578 Kerberos function mit_des_cbc_cksum(). Before this change,
2579 the value returned by DES_cbc_cksum() was like the one from
2580 mit_des_cbc_cksum(), except the bytes were swapped.
2581 [Kevin Greaney <Kevin.Greaney@hp.com> and Richard Levitte]
2583 *) Allow an application to disable the automatic SSL chain building.
2584 Before this a rather primitive chain build was always performed in
2585 ssl3_output_cert_chain(): an application had no way to send the
2586 correct chain if the automatic operation produced an incorrect result.
2588 Now the chain builder is disabled if either:
2590 1. Extra certificates are added via SSL_CTX_add_extra_chain_cert().
2592 2. The mode flag SSL_MODE_NO_AUTO_CHAIN is set.
2594 The reasoning behind this is that an application would not want the
2595 auto chain building to take place if extra chain certificates are
2596 present and it might also want a means of sending no additional
2597 certificates (for example the chain has two certificates and the
2601 *) Add the possibility to build without the ENGINE framework.
2602 [Steven Reddie <smr@essemer.com.au> via Richard Levitte]
2604 *) Under Win32 gmtime() can return NULL: check return value in
2605 OPENSSL_gmtime(). Add error code for case where gmtime() fails.
2608 *) DSA routines: under certain error conditions uninitialized BN objects
2609 could be freed. Solution: make sure initialization is performed early
2610 enough. (Reported and fix supplied by Ivan D Nestlerode <nestler@MIT.EDU>,
2611 Nils Larsch <nla@trustcenter.de> via PR#459)
2614 *) Another fix for SSLv2 session ID handling: the session ID was incorrectly
2615 checked on reconnect on the client side, therefore session resumption
2616 could still fail with a "ssl session id is different" error. This
2617 behaviour is masked when SSL_OP_ALL is used due to
2618 SSL_OP_MICROSOFT_SESS_ID_BUG being set.
2619 Behaviour observed by Crispin Flowerday <crispin@flowerday.cx> as
2620 followup to PR #377.
2623 *) IA-32 assembler support enhancements: unified ELF targets, support
2624 for SCO/Caldera platforms, fix for Cygwin shared build.
2627 *) Add support for FreeBSD on sparc64. As a consequence, support for
2628 FreeBSD on non-x86 processors is separate from x86 processors on
2629 the config script, much like the NetBSD support.
2630 [Richard Levitte & Kris Kennaway <kris@obsecurity.org>]
2632 Changes between 0.9.6h and 0.9.7 [31 Dec 2002]
2634 [NB: OpenSSL 0.9.6i and later 0.9.6 patch levels were released after
2637 *) Fix session ID handling in SSLv2 client code: the SERVER FINISHED
2638 code (06) was taken as the first octet of the session ID and the last
2639 octet was ignored consequently. As a result SSLv2 client side session
2640 caching could not have worked due to the session ID mismatch between
2642 Behaviour observed by Crispin Flowerday <crispin@flowerday.cx> as
2646 *) Change the declaration of needed Kerberos libraries to use EX_LIBS
2647 instead of the special (and badly supported) LIBKRB5. LIBKRB5 is
2651 *) The hw_ncipher.c engine requires dynamic locks. Unfortunately, it
2652 seems that in spite of existing for more than a year, many application
2653 author have done nothing to provide the necessary callbacks, which
2654 means that this particular engine will not work properly anywhere.
2655 This is a very unfortunate situation which forces us, in the name
2656 of usability, to give the hw_ncipher.c a static lock, which is part
2658 NOTE: This is for the 0.9.7 series ONLY. This hack will never
2659 appear in 0.9.8 or later. We EXPECT application authors to have
2660 dealt properly with this when 0.9.8 is released (unless we actually
2661 make such changes in the libcrypto locking code that changes will
2662 have to be made anyway).
2665 *) In asn1_d2i_read_bio() repeatedly call BIO_read() until all content
2666 octets have been read, EOF or an error occurs. Without this change
2667 some truncated ASN1 structures will not produce an error.
2670 *) Disable Heimdal support, since it hasn't been fully implemented.
2671 Still give the possibility to force the use of Heimdal, but with
2672 warnings and a request that patches get sent to openssl-dev.
2675 *) Add the VC-CE target, introduce the WINCE sysname, and add
2676 INSTALL.WCE and appropriate conditionals to make it build.
2677 [Steven Reddie <smr@essemer.com.au> via Richard Levitte]
2679 *) Change the DLL names for Cygwin to cygcrypto-x.y.z.dll and
2680 cygssl-x.y.z.dll, where x, y and z are the major, minor and
2681 edit numbers of the version.
2682 [Corinna Vinschen <vinschen@redhat.com> and Richard Levitte]
2684 *) Introduce safe string copy and catenation functions
2685 (BUF_strlcpy() and BUF_strlcat()).
2686 [Ben Laurie (CHATS) and Richard Levitte]
2688 *) Avoid using fixed-size buffers for one-line DNs.
2689 [Ben Laurie (CHATS)]
2691 *) Add BUF_MEM_grow_clean() to avoid information leakage when
2692 resizing buffers containing secrets, and use where appropriate.
2693 [Ben Laurie (CHATS)]
2695 *) Avoid using fixed size buffers for configuration file location.
2696 [Ben Laurie (CHATS)]
2698 *) Avoid filename truncation for various CA files.
2699 [Ben Laurie (CHATS)]
2701 *) Use sizeof in preference to magic numbers.
2702 [Ben Laurie (CHATS)]
2704 *) Avoid filename truncation in cert requests.
2705 [Ben Laurie (CHATS)]
2707 *) Add assertions to check for (supposedly impossible) buffer
2709 [Ben Laurie (CHATS)]
2711 *) Don't cache truncated DNS entries in the local cache (this could
2712 potentially lead to a spoofing attack).
2713 [Ben Laurie (CHATS)]
2715 *) Fix various buffers to be large enough for hex/decimal
2716 representations in a platform independent manner.
2717 [Ben Laurie (CHATS)]
2719 *) Add CRYPTO_realloc_clean() to avoid information leakage when
2720 resizing buffers containing secrets, and use where appropriate.
2721 [Ben Laurie (CHATS)]
2723 *) Add BIO_indent() to avoid much slightly worrying code to do
2725 [Ben Laurie (CHATS)]
2727 *) Convert sprintf()/BIO_puts() to BIO_printf().
2728 [Ben Laurie (CHATS)]
2730 *) buffer_gets() could terminate with the buffer only half
2732 [Ben Laurie (CHATS)]
2734 *) Add assertions to prevent user-supplied crypto functions from
2735 overflowing internal buffers by having large block sizes, etc.
2736 [Ben Laurie (CHATS)]
2738 *) New OPENSSL_assert() macro (similar to assert(), but enabled
2740 [Ben Laurie (CHATS)]
2742 *) Eliminate unused copy of key in RC4.
2743 [Ben Laurie (CHATS)]
2745 *) Eliminate unused and incorrectly sized buffers for IV in pem.h.
2746 [Ben Laurie (CHATS)]
2748 *) Fix off-by-one error in EGD path.
2749 [Ben Laurie (CHATS)]
2751 *) If RANDFILE path is too long, ignore instead of truncating.
2752 [Ben Laurie (CHATS)]
2754 *) Eliminate unused and incorrectly sized X.509 structure
2756 [Ben Laurie (CHATS)]
2758 *) Eliminate unused and dangerous function knumber().
2759 [Ben Laurie (CHATS)]
2761 *) Eliminate unused and dangerous structure, KSSL_ERR.
2762 [Ben Laurie (CHATS)]
2764 *) Protect against overlong session ID context length in an encoded
2765 session object. Since these are local, this does not appear to be
2767 [Ben Laurie (CHATS)]
2769 *) Change from security patch (see 0.9.6e below) that did not affect
2770 the 0.9.6 release series:
2772 Remote buffer overflow in SSL3 protocol - an attacker could
2773 supply an oversized master key in Kerberos-enabled versions.
2775 [Ben Laurie (CHATS)]
2777 *) Change the SSL kerb5 codes to match RFC 2712.
2780 *) Make -nameopt work fully for req and add -reqopt switch.
2781 [Michael Bell <michael.bell@rz.hu-berlin.de>, Steve Henson]
2783 *) The "block size" for block ciphers in CFB and OFB mode should be 1.
2784 [Steve Henson, reported by Yngve Nysaeter Pettersen <yngve@opera.com>]
2786 *) Make sure tests can be performed even if the corresponding algorithms
2787 have been removed entirely. This was also the last step to make
2788 OpenSSL compilable with DJGPP under all reasonable conditions.
2789 [Richard Levitte, Doug Kaufman <dkaufman@rahul.net>]
2791 *) Add cipher selection rules COMPLEMENTOFALL and COMPLEMENTOFDEFAULT
2792 to allow version independent disabling of normally unselected ciphers,
2793 which may be activated as a side-effect of selecting a single cipher.
2795 (E.g., cipher list string "RSA" enables ciphersuites that are left
2796 out of "ALL" because they do not provide symmetric encryption.
2797 "RSA:!COMPLEMEMENTOFALL" avoids these unsafe ciphersuites.)
2798 [Lutz Jaenicke, Bodo Moeller]
2800 *) Add appropriate support for separate platform-dependent build
2801 directories. The recommended way to make a platform-dependent
2802 build directory is the following (tested on Linux), maybe with
2805 # Place yourself outside of the OpenSSL source tree. In
2806 # this example, the environment variable OPENSSL_SOURCE
2807 # is assumed to contain the absolute OpenSSL source directory.
2808 mkdir -p objtree/"`uname -s`-`uname -r`-`uname -m`"
2809 cd objtree/"`uname -s`-`uname -r`-`uname -m`"
2810 (cd $OPENSSL_SOURCE; find . -type f) | while read F; do
2811 mkdir -p `dirname $F`
2812 ln -s $OPENSSL_SOURCE/$F $F
2815 To be absolutely sure not to disturb the source tree, a "make clean"
2816 is a good thing. If it isn't successfull, don't worry about it,
2817 it probably means the source directory is very clean.
2820 *) Make sure any ENGINE control commands make local copies of string
2821 pointers passed to them whenever necessary. Otherwise it is possible
2822 the caller may have overwritten (or deallocated) the original string
2823 data when a later ENGINE operation tries to use the stored values.
2824 [Götz Babin-Ebell <babinebell@trustcenter.de>]
2826 *) Improve diagnostics in file reading and command-line digests.
2827 [Ben Laurie aided and abetted by Solar Designer <solar@openwall.com>]
2829 *) Add AES modes CFB and OFB to the object database. Correct an
2830 error in AES-CFB decryption.
2833 *) Remove most calls to EVP_CIPHER_CTX_cleanup() in evp_enc.c, this
2834 allows existing EVP_CIPHER_CTX structures to be reused after
2835 calling EVP_*Final(). This behaviour is used by encryption
2836 BIOs and some applications. This has the side effect that
2837 applications must explicitly clean up cipher contexts with
2838 EVP_CIPHER_CTX_cleanup() or they will leak memory.
2841 *) Check the values of dna and dnb in bn_mul_recursive before calling
2842 bn_mul_comba (a non zero value means the a or b arrays do not contain
2843 n2 elements) and fallback to bn_mul_normal if either is not zero.
2846 *) Fix escaping of non-ASCII characters when using the -subj option
2847 of the "openssl req" command line tool. (Robert Joop <joop@fokus.gmd.de>)
2850 *) Make object definitions compliant to LDAP (RFC2256): SN is the short
2851 form for "surname", serialNumber has no short form.
2852 Use "mail" as the short name for "rfc822Mailbox" according to RFC2798;
2853 therefore remove "mail" short name for "internet 7".
2854 The OID for unique identifiers in X509 certificates is
2855 x500UniqueIdentifier, not uniqueIdentifier.
2856 Some more OID additions. (Michael Bell <michael.bell@rz.hu-berlin.de>)
2859 *) Add an "init" command to the ENGINE config module and auto initialize
2860 ENGINEs. Without any "init" command the ENGINE will be initialized
2861 after all ctrl commands have been executed on it. If init=1 the
2862 ENGINE is initailized at that point (ctrls before that point are run
2863 on the uninitialized ENGINE and after on the initialized one). If
2864 init=0 then the ENGINE will not be iniatialized at all.
2867 *) Fix the 'app_verify_callback' interface so that the user-defined
2868 argument is actually passed to the callback: In the
2869 SSL_CTX_set_cert_verify_callback() prototype, the callback
2870 declaration has been changed from
2873 int (*cb)(X509_STORE_CTX *,void *);
2874 in ssl_verify_cert_chain (ssl/ssl_cert.c), the call
2875 i=s->ctx->app_verify_callback(&ctx)
2876 has been changed into
2877 i=s->ctx->app_verify_callback(&ctx, s->ctx->app_verify_arg).
2879 To update applications using SSL_CTX_set_cert_verify_callback(),
2880 a dummy argument can be added to their callback functions.
2881 [D. K. Smetters <smetters@parc.xerox.com>]
2883 *) Added the '4758cca' ENGINE to support IBM 4758 cards.
2884 [Maurice Gittens <maurice@gittens.nl>, touchups by Geoff Thorpe]
2886 *) Add and OPENSSL_LOAD_CONF define which will cause
2887 OpenSSL_add_all_algorithms() to load the openssl.cnf config file.
2888 This allows older applications to transparently support certain
2889 OpenSSL features: such as crypto acceleration and dynamic ENGINE loading.
2890 Two new functions OPENSSL_add_all_algorithms_noconf() which will never
2891 load the config file and OPENSSL_add_all_algorithms_conf() which will
2892 always load it have also been added.
2895 *) Add the OFB, CFB and CTR (all with 128 bit feedback) to AES.
2896 Adjust NIDs and EVP layer.
2897 [Stephen Sprunk <stephen@sprunk.org> and Richard Levitte]
2899 *) Config modules support in openssl utility.
2901 Most commands now load modules from the config file,
2902 though in a few (such as version) this isn't done
2903 because it couldn't be used for anything.
2905 In the case of ca and req the config file used is
2906 the same as the utility itself: that is the -config
2907 command line option can be used to specify an
2911 *) Move default behaviour from OPENSSL_config(). If appname is NULL
2912 use "openssl_conf" if filename is NULL use default openssl config file.
2915 *) Add an argument to OPENSSL_config() to allow the use of an alternative
2916 config section name. Add a new flag to tolerate a missing config file
2917 and move code to CONF_modules_load_file().
2920 *) Support for crypto accelerator cards from Accelerated Encryption
2921 Processing, www.aep.ie. (Use engine 'aep')
2922 The support was copied from 0.9.6c [engine] and adapted/corrected
2923 to work with the new engine framework.
2924 [AEP Inc. and Richard Levitte]
2926 *) Support for SureWare crypto accelerator cards from Baltimore
2927 Technologies. (Use engine 'sureware')
2928 The support was copied from 0.9.6c [engine] and adapted
2929 to work with the new engine framework.
2932 *) Have the CHIL engine fork-safe (as defined by nCipher) and actually
2933 make the newer ENGINE framework commands for the CHIL engine work.
2934 [Toomas Kiisk <vix@cyber.ee> and Richard Levitte]
2936 *) Make it possible to produce shared libraries on ReliantUNIX.
2937 [Robert Dahlem <Robert.Dahlem@ffm2.siemens.de> via Richard Levitte]
2939 *) Add the configuration target debug-linux-ppro.
2940 Make 'openssl rsa' use the general key loading routines
2941 implemented in apps.c, and make those routines able to
2942 handle the key format FORMAT_NETSCAPE and the variant
2944 [Toomas Kiisk <vix@cyber.ee> via Richard Levitte]
2946 *) Fix a crashbug and a logic bug in hwcrhk_load_pubkey().
2947 [Toomas Kiisk <vix@cyber.ee> via Richard Levitte]
2949 *) Add -keyform to rsautl, and document -engine.
2950 [Richard Levitte, inspired by Toomas Kiisk <vix@cyber.ee>]
2952 *) Change BIO_new_file (crypto/bio/bss_file.c) to use new
2953 BIO_R_NO_SUCH_FILE error code rather than the generic
2954 ERR_R_SYS_LIB error code if fopen() fails with ENOENT.
2957 *) Add new functions
2959 ERR_peek_last_error_line
2960 ERR_peek_last_error_line_data.
2961 These are similar to
2964 ERR_peek_error_line_data,
2965 but report on the latest error recorded rather than the first one
2966 still in the error queue.
2967 [Ben Laurie, Bodo Moeller]
2969 *) default_algorithms option in ENGINE config module. This allows things
2971 default_algorithms = ALL
2972 default_algorithms = RSA, DSA, RAND, CIPHERS, DIGESTS
2975 *) Prelminary ENGINE config module.
2978 *) New experimental application configuration code.
2981 *) Change the AES code to follow the same name structure as all other
2982 symmetric ciphers, and behave the same way. Move everything to
2983 the directory crypto/aes, thereby obsoleting crypto/rijndael.
2984 [Stephen Sprunk <stephen@sprunk.org> and Richard Levitte]
2986 *) SECURITY: remove unsafe setjmp/signal interaction from ui_openssl.c.
2987 [Ben Laurie and Theo de Raadt]
2989 *) Add option to output public keys in req command.
2990 [Massimiliano Pala madwolf@openca.org]
2992 *) Use wNAFs in EC_POINTs_mul() for improved efficiency
2993 (up to about 10% better than before for P-192 and P-224).
2996 *) New functions/macros
2998 SSL_CTX_set_msg_callback(ctx, cb)
2999 SSL_CTX_set_msg_callback_arg(ctx, arg)
3000 SSL_set_msg_callback(ssl, cb)
3001 SSL_set_msg_callback_arg(ssl, arg)
3003 to request calling a callback function
3005 void cb(int write_p, int version, int content_type,
3006 const void *buf, size_t len, SSL *ssl, void *arg)
3008 whenever a protocol message has been completely received
3009 (write_p == 0) or sent (write_p == 1). Here 'version' is the
3010 protocol version according to which the SSL library interprets
3011 the current protocol message (SSL2_VERSION, SSL3_VERSION, or
3012 TLS1_VERSION). 'content_type' is 0 in the case of SSL 2.0, or
3013 the content type as defined in the SSL 3.0/TLS 1.0 protocol
3014 specification (change_cipher_spec(20), alert(21), handshake(22)).
3015 'buf' and 'len' point to the actual message, 'ssl' to the
3016 SSL object, and 'arg' is the application-defined value set by
3017 SSL[_CTX]_set_msg_callback_arg().
3019 'openssl s_client' and 'openssl s_server' have new '-msg' options
3020 to enable a callback that displays all protocol messages.
3023 *) Change the shared library support so shared libraries are built as
3024 soon as the corresponding static library is finished, and thereby get
3025 openssl and the test programs linked against the shared library.
3026 This still only happens when the keyword "shard" has been given to
3027 the configuration scripts.
3029 NOTE: shared library support is still an experimental thing, and
3030 backward binary compatibility is still not guaranteed.
3031 ["Maciej W. Rozycki" <macro@ds2.pg.gda.pl> and Richard Levitte]
3033 *) Add support for Subject Information Access extension.
3034 [Peter Sylvester <Peter.Sylvester@EdelWeb.fr>]
3036 *) Make BUF_MEM_grow() behaviour more consistent: Initialise to zero
3037 additional bytes when new memory had to be allocated, not just
3038 when reusing an existing buffer.
3041 *) New command line and configuration option 'utf8' for the req command.
3042 This allows field values to be specified as UTF8 strings.
3045 *) Add -multi and -mr options to "openssl speed" - giving multiple parallel
3046 runs for the former and machine-readable output for the latter.
3049 *) Add '-noemailDN' option to 'openssl ca'. This prevents inclusion
3050 of the e-mail address in the DN (i.e., it will go into a certificate
3051 extension only). The new configuration file option 'email_in_dn = no'
3052 has the same effect.
3053 [Massimiliano Pala madwolf@openca.org]
3055 *) Change all functions with names starting with des_ to be starting
3056 with DES_ instead. Add wrappers that are compatible with libdes,
3057 but are named _ossl_old_des_*. Finally, add macros that map the
3058 des_* symbols to the corresponding _ossl_old_des_* if libdes
3059 compatibility is desired. If OpenSSL 0.9.6c compatibility is
3060 desired, the des_* symbols will be mapped to DES_*, with one
3063 Since we provide two compatibility mappings, the user needs to
3064 define the macro OPENSSL_DES_LIBDES_COMPATIBILITY if libdes
3065 compatibility is desired. The default (i.e., when that macro
3066 isn't defined) is OpenSSL 0.9.6c compatibility.
3068 There are also macros that enable and disable the support of old
3069 des functions altogether. Those are OPENSSL_ENABLE_OLD_DES_SUPPORT
3070 and OPENSSL_DISABLE_OLD_DES_SUPPORT. If none or both of those
3071 are defined, the default will apply: to support the old des routines.
3073 In either case, one must include openssl/des.h to get the correct
3074 definitions. Do not try to just include openssl/des_old.h, that
3077 NOTE: This is a major break of an old API into a new one. Software
3078 authors are encouraged to switch to the DES_ style functions. Some
3079 time in the future, des_old.h and the libdes compatibility functions
3080 will be disable (i.e. OPENSSL_DISABLE_OLD_DES_SUPPORT will be the
3081 default), and then completely removed.
3084 *) Test for certificates which contain unsupported critical extensions.
3085 If such a certificate is found during a verify operation it is
3086 rejected by default: this behaviour can be overridden by either
3087 handling the new error X509_V_ERR_UNHANDLED_CRITICAL_EXTENSION or
3088 by setting the verify flag X509_V_FLAG_IGNORE_CRITICAL. A new function
3089 X509_supported_extension() has also been added which returns 1 if a
3090 particular extension is supported.
3093 *) Modify the behaviour of EVP cipher functions in similar way to digests
3094 to retain compatibility with existing code.
3097 *) Modify the behaviour of EVP_DigestInit() and EVP_DigestFinal() to retain
3098 compatibility with existing code. In particular the 'ctx' parameter does
3099 not have to be to be initialized before the call to EVP_DigestInit() and
3100 it is tidied up after a call to EVP_DigestFinal(). New function
3101 EVP_DigestFinal_ex() which does not tidy up the ctx. Similarly function
3102 EVP_MD_CTX_copy() changed to not require the destination to be
3103 initialized valid and new function EVP_MD_CTX_copy_ex() added which
3104 requires the destination to be valid.
3106 Modify all the OpenSSL digest calls to use EVP_DigestInit_ex(),
3107 EVP_DigestFinal_ex() and EVP_MD_CTX_copy_ex().
3110 *) Change ssl3_get_message (ssl/s3_both.c) and the functions using it
3111 so that complete 'Handshake' protocol structures are kept in memory
3112 instead of overwriting 'msg_type' and 'length' with 'body' data.
3115 *) Add an implementation of SSL_add_dir_cert_subjects_to_stack for Win32.
3116 [Massimo Santin via Richard Levitte]
3118 *) Major restructuring to the underlying ENGINE code. This includes
3119 reduction of linker bloat, separation of pure "ENGINE" manipulation
3120 (initialisation, etc) from functionality dealing with implementations
3121 of specific crypto iterfaces. This change also introduces integrated
3122 support for symmetric ciphers and digest implementations - so ENGINEs
3123 can now accelerate these by providing EVP_CIPHER and EVP_MD
3124 implementations of their own. This is detailed in crypto/engine/README
3125 as it couldn't be adequately described here. However, there are a few
3126 API changes worth noting - some RSA, DSA, DH, and RAND functions that
3127 were changed in the original introduction of ENGINE code have now
3128 reverted back - the hooking from this code to ENGINE is now a good
3129 deal more passive and at run-time, operations deal directly with
3130 RSA_METHODs, DSA_METHODs (etc) as they did before, rather than
3131 dereferencing through an ENGINE pointer any more. Also, the ENGINE
3132 functions dealing with BN_MOD_EXP[_CRT] handlers have been removed -
3133 they were not being used by the framework as there is no concept of a
3134 BIGNUM_METHOD and they could not be generalised to the new
3135 'ENGINE_TABLE' mechanism that underlies the new code. Similarly,
3136 ENGINE_cpy() has been removed as it cannot be consistently defined in
3140 *) Change ASN1_GENERALIZEDTIME_check() to allow fractional seconds.
3143 *) Change mkdef.pl to sort symbols that get the same entry number,
3144 and make sure the automatically generated functions ERR_load_*
3145 become part of libeay.num as well.
3148 *) New function SSL_renegotiate_pending(). This returns true once
3149 renegotiation has been requested (either SSL_renegotiate() call
3150 or HelloRequest/ClientHello receveived from the peer) and becomes
3151 false once a handshake has been completed.
3152 (For servers, SSL_renegotiate() followed by SSL_do_handshake()
3153 sends a HelloRequest, but does not ensure that a handshake takes
3154 place. SSL_renegotiate_pending() is useful for checking if the
3155 client has followed the request.)
3158 *) New SSL option SSL_OP_NO_SESSION_RESUMPTION_ON_RENEGOTIATION.
3159 By default, clients may request session resumption even during
3160 renegotiation (if session ID contexts permit); with this option,
3161 session resumption is possible only in the first handshake.
3163 SSL_OP_ALL is now 0x00000FFFL instead of 0x000FFFFFL. This makes
3164 more bits available for options that should not be part of
3165 SSL_OP_ALL (such as SSL_OP_NO_SESSION_RESUMPTION_ON_RENEGOTIATION).
3168 *) Add some demos for certificate and certificate request creation.
3171 *) Make maximum certificate chain size accepted from the peer application
3172 settable (SSL*_get/set_max_cert_list()), as proposed by
3173 "Douglas E. Engert" <deengert@anl.gov>.
3176 *) Add support for shared libraries for Unixware-7
3177 (Boyd Lynn Gerber <gerberb@zenez.com>).
3180 *) Add a "destroy" handler to ENGINEs that allows structural cleanup to
3181 be done prior to destruction. Use this to unload error strings from
3182 ENGINEs that load their own error strings. NB: This adds two new API
3183 functions to "get" and "set" this destroy handler in an ENGINE.
3186 *) Alter all existing ENGINE implementations (except "openssl" and
3187 "openbsd") to dynamically instantiate their own error strings. This
3188 makes them more flexible to be built both as statically-linked ENGINEs
3189 and self-contained shared-libraries loadable via the "dynamic" ENGINE.
3190 Also, add stub code to each that makes building them as self-contained
3191 shared-libraries easier (see README.ENGINE).
3194 *) Add a "dynamic" ENGINE that provides a mechanism for binding ENGINE
3195 implementations into applications that are completely implemented in
3196 self-contained shared-libraries. The "dynamic" ENGINE exposes control
3197 commands that can be used to configure what shared-library to load and
3198 to control aspects of the way it is handled. Also, made an update to
3199 the README.ENGINE file that brings its information up-to-date and
3200 provides some information and instructions on the "dynamic" ENGINE
3201 (ie. how to use it, how to build "dynamic"-loadable ENGINEs, etc).
3204 *) Make it possible to unload ranges of ERR strings with a new
3205 "ERR_unload_strings" function.
3208 *) Add a copy() function to EVP_MD.
3211 *) Make EVP_MD routines take a context pointer instead of just the
3212 md_data void pointer.
3215 *) Add flags to EVP_MD and EVP_MD_CTX. EVP_MD_FLAG_ONESHOT indicates
3216 that the digest can only process a single chunk of data
3217 (typically because it is provided by a piece of
3218 hardware). EVP_MD_CTX_FLAG_ONESHOT indicates that the application
3219 is only going to provide a single chunk of data, and hence the
3220 framework needn't accumulate the data for oneshot drivers.
3223 *) As with "ERR", make it possible to replace the underlying "ex_data"
3224 functions. This change also alters the storage and management of global
3225 ex_data state - it's now all inside ex_data.c and all "class" code (eg.
3226 RSA, BIO, SSL_CTX, etc) no longer stores its own STACKS and per-class
3227 index counters. The API functions that use this state have been changed
3228 to take a "class_index" rather than pointers to the class's local STACK
3229 and counter, and there is now an API function to dynamically create new
3230 classes. This centralisation allows us to (a) plug a lot of the
3231 thread-safety problems that existed, and (b) makes it possible to clean
3232 up all allocated state using "CRYPTO_cleanup_all_ex_data()". W.r.t. (b)
3233 such data would previously have always leaked in application code and
3234 workarounds were in place to make the memory debugging turn a blind eye
3235 to it. Application code that doesn't use this new function will still
3236 leak as before, but their memory debugging output will announce it now
3237 rather than letting it slide.
3239 Besides the addition of CRYPTO_cleanup_all_ex_data(), another API change
3240 induced by the "ex_data" overhaul is that X509_STORE_CTX_init() now
3241 has a return value to indicate success or failure.
3244 *) Make it possible to replace the underlying "ERR" functions such that the
3245 global state (2 LHASH tables and 2 locks) is only used by the "default"
3246 implementation. This change also adds two functions to "get" and "set"
3247 the implementation prior to it being automatically set the first time
3248 any other ERR function takes place. Ie. an application can call "get",
3249 pass the return value to a module it has just loaded, and that module
3250 can call its own "set" function using that value. This means the
3251 module's "ERR" operations will use (and modify) the error state in the
3252 application and not in its own statically linked copy of OpenSSL code.
3255 *) Give DH, DSA, and RSA types their own "**_up_ref()" function to increment
3256 reference counts. This performs normal REF_PRINT/REF_CHECK macros on
3257 the operation, and provides a more encapsulated way for external code
3258 (crypto/evp/ and ssl/) to do this. Also changed the evp and ssl code
3259 to use these functions rather than manually incrementing the counts.
3261 Also rename "DSO_up()" function to more descriptive "DSO_up_ref()".
3264 *) Add EVP test program.
3267 *) Add symmetric cipher support to ENGINE. Expect the API to change!
3270 *) New CRL functions: X509_CRL_set_version(), X509_CRL_set_issuer_name()
3271 X509_CRL_set_lastUpdate(), X509_CRL_set_nextUpdate(), X509_CRL_sort(),
3272 X509_REVOKED_set_serialNumber(), and X509_REVOKED_set_revocationDate().
3273 These allow a CRL to be built without having to access X509_CRL fields
3274 directly. Modify 'ca' application to use new functions.
3277 *) Move SSL_OP_TLS_ROLLBACK_BUG out of the SSL_OP_ALL list of recommended
3278 bug workarounds. Rollback attack detection is a security feature.
3279 The problem will only arise on OpenSSL servers when TLSv1 is not
3280 available (sslv3_server_method() or SSL_OP_NO_TLSv1).
3281 Software authors not wanting to support TLSv1 will have special reasons
3282 for their choice and can explicitly enable this option.
3283 [Bodo Moeller, Lutz Jaenicke]
3285 *) Rationalise EVP so it can be extended: don't include a union of
3286 cipher/digest structures, add init/cleanup functions for EVP_MD_CTX
3287 (similar to those existing for EVP_CIPHER_CTX).
3292 EVP_MD_CTX_init(&md); /* new function call */
3293 EVP_DigestInit(&md, EVP_sha1());
3294 EVP_DigestUpdate(&md, in, len);
3295 EVP_DigestFinal(&md, out, NULL);
3296 EVP_MD_CTX_cleanup(&md); /* new function call */
3300 *) Make DES key schedule conform to the usual scheme, as well as
3301 correcting its structure. This means that calls to DES functions
3302 now have to pass a pointer to a des_key_schedule instead of a
3303 plain des_key_schedule (which was actually always a pointer
3306 des_key_schedule ks;
3308 des_set_key_checked(..., &ks);
3309 des_ncbc_encrypt(..., &ks, ...);
3311 (Note that a later change renames 'des_...' into 'DES_...'.)
3314 *) Initial reduction of linker bloat: the use of some functions, such as
3315 PEM causes large amounts of unused functions to be linked in due to
3316 poor organisation. For example pem_all.c contains every PEM function
3317 which has a knock on effect of linking in large amounts of (unused)
3318 ASN1 code. Grouping together similar functions and splitting unrelated
3319 functions prevents this.
3322 *) Cleanup of EVP macros.
3325 *) Change historical references to {NID,SN,LN}_des_ede and ede3 to add the
3326 correct _ecb suffix.
3329 *) Add initial OCSP responder support to ocsp application. The
3330 revocation information is handled using the text based index
3331 use by the ca application. The responder can either handle
3332 requests generated internally, supplied in files (for example
3333 via a CGI script) or using an internal minimal server.
3336 *) Add configuration choices to get zlib compression for TLS.
3339 *) Changes to Kerberos SSL for RFC 2712 compliance:
3340 1. Implemented real KerberosWrapper, instead of just using
3341 KRB5 AP_REQ message. [Thanks to Simon Wilkinson <sxw@sxw.org.uk>]
3342 2. Implemented optional authenticator field of KerberosWrapper.
3344 Added openssl-style ASN.1 macros for Kerberos ticket, ap_req,
3345 and authenticator structs; see crypto/krb5/.
3347 Generalized Kerberos calls to support multiple Kerberos libraries.
3348 [Vern Staats <staatsvr@asc.hpc.mil>,
3349 Jeffrey Altman <jaltman@columbia.edu>
3350 via Richard Levitte]
3352 *) Cause 'openssl speed' to use fully hard-coded DSA keys as it
3353 already does with RSA. testdsa.h now has 'priv_key/pub_key'
3354 values for each of the key sizes rather than having just
3355 parameters (and 'speed' generating keys each time).
3358 *) Speed up EVP routines.
3361 type 8 bytes 64 bytes 256 bytes 1024 bytes 8192 bytes
3362 des-cbc 4408.85k 5560.51k 5778.46k 5862.20k 5825.16k
3363 des-cbc 4389.55k 5571.17k 5792.23k 5846.91k 5832.11k
3364 des-cbc 4394.32k 5575.92k 5807.44k 5848.37k 5841.30k
3366 des-cbc 3482.66k 5069.49k 5496.39k 5614.16k 5639.28k
3367 des-cbc 3480.74k 5068.76k 5510.34k 5609.87k 5635.52k
3368 des-cbc 3483.72k 5067.62k 5504.60k 5708.01k 5724.80k
3371 des-cbc 4660.16k 5650.19k 5807.19k 5827.13k 5783.32k
3373 des-cbc 3624.96k 5258.21k 5530.91k 5624.30k 5628.26k
3376 *) Added the OS2-EMX target.
3377 ["Brian Havard" <brianh@kheldar.apana.org.au> and Richard Levitte]
3379 *) Rewrite apps to use NCONF routines instead of the old CONF. New functions
3380 to support NCONF routines in extension code. New function CONF_set_nconf()
3381 to allow functions which take an NCONF to also handle the old LHASH
3382 structure: this means that the old CONF compatible routines can be
3383 retained (in particular wrt extensions) without having to duplicate the
3384 code. New function X509V3_add_ext_nconf_sk to add extensions to a stack.
3387 *) Enhance the general user interface with mechanisms for inner control
3388 and with possibilities to have yes/no kind of prompts.
3391 *) Change all calls to low level digest routines in the library and
3392 applications to use EVP. Add missing calls to HMAC_cleanup() and
3393 don't assume HMAC_CTX can be copied using memcpy().
3394 [Verdon Walker <VWalker@novell.com>, Steve Henson]
3396 *) Add the possibility to control engines through control names but with
3397 arbitrary arguments instead of just a string.
3398 Change the key loaders to take a UI_METHOD instead of a callback
3399 function pointer. NOTE: this breaks binary compatibility with earlier
3400 versions of OpenSSL [engine].
3401 Adapt the nCipher code for these new conditions and add a card insertion
3405 *) Enhance the general user interface with mechanisms to better support
3406 dialog box interfaces, application-defined prompts, the possibility
3407 to use defaults (for example default passwords from somewhere else)
3408 and interrupts/cancellations.
3411 *) Tidy up PKCS#12 attribute handling. Add support for the CSP name
3412 attribute in PKCS#12 files, add new -CSP option to pkcs12 utility.
3415 *) Fix a memory leak in 'sk_dup()' in the case reallocation fails. (Also
3416 tidy up some unnecessarily weird code in 'sk_new()').
3417 [Geoff, reported by Diego Tartara <dtartara@novamens.com>]
3419 *) Change the key loading routines for ENGINEs to use the same kind
3420 callback (pem_password_cb) as all other routines that need this
3424 *) Increase ENTROPY_NEEDED to 32 bytes, as Rijndael can operate with
3425 256 bit (=32 byte) keys. Of course seeding with more entropy bytes
3426 than this minimum value is recommended.
3429 *) New random seeder for OpenVMS, using the system process statistics
3430 that are easily reachable.
3433 *) Windows apparently can't transparently handle global
3434 variables defined in DLLs. Initialisations such as:
3436 const ASN1_ITEM *it = &ASN1_INTEGER_it;
3438 wont compile. This is used by the any applications that need to
3439 declare their own ASN1 modules. This was fixed by adding the option
3440 EXPORT_VAR_AS_FN to all Win32 platforms, although this isn't strictly
3441 needed for static libraries under Win32.
3444 *) New functions X509_PURPOSE_set() and X509_TRUST_set() to handle
3445 setting of purpose and trust fields. New X509_STORE trust and
3446 purpose functions and tidy up setting in other SSL functions.
3449 *) Add copies of X509_STORE_CTX fields and callbacks to X509_STORE
3450 structure. These are inherited by X509_STORE_CTX when it is
3451 initialised. This allows various defaults to be set in the
3452 X509_STORE structure (such as flags for CRL checking and custom
3453 purpose or trust settings) for functions which only use X509_STORE_CTX
3454 internally such as S/MIME.
3456 Modify X509_STORE_CTX_purpose_inherit() so it only sets purposes and
3457 trust settings if they are not set in X509_STORE. This allows X509_STORE
3458 purposes and trust (in S/MIME for example) to override any set by default.
3460 Add command line options for CRL checking to smime, s_client and s_server
3464 *) Initial CRL based revocation checking. If the CRL checking flag(s)
3465 are set then the CRL is looked up in the X509_STORE structure and
3466 its validity and signature checked, then if the certificate is found
3467 in the CRL the verify fails with a revoked error.
3469 Various new CRL related callbacks added to X509_STORE_CTX structure.
3471 Command line options added to 'verify' application to support this.
3473 This needs some additional work, such as being able to handle multiple
3474 CRLs with different times, extension based lookup (rather than just
3475 by subject name) and ultimately more complete V2 CRL extension
3479 *) Add a general user interface API (crypto/ui/). This is designed
3480 to replace things like des_read_password and friends (backward
3481 compatibility functions using this new API are provided).
3482 The purpose is to remove prompting functions from the DES code
3483 section as well as provide for prompting through dialog boxes in
3484 a window system and the like.
3487 *) Add "ex_data" support to ENGINE so implementations can add state at a
3488 per-structure level rather than having to store it globally.
3491 *) Make it possible for ENGINE structures to be copied when retrieved by
3492 ENGINE_by_id() if the ENGINE specifies a new flag: ENGINE_FLAGS_BY_ID_COPY.
3493 This causes the "original" ENGINE structure to act like a template,
3494 analogous to the RSA vs. RSA_METHOD type of separation. Because of this
3495 operational state can be localised to each ENGINE structure, despite the
3496 fact they all share the same "methods". New ENGINE structures returned in
3497 this case have no functional references and the return value is the single
3498 structural reference. This matches the single structural reference returned
3499 by ENGINE_by_id() normally, when it is incremented on the pre-existing
3503 *) Fix ASN1 decoder when decoding type ANY and V_ASN1_OTHER: since this
3504 needs to match any other type at all we need to manually clear the
3508 *) Changes to the "openssl engine" utility to include;
3509 - verbosity levels ('-v', '-vv', and '-vvv') that provide information
3510 about an ENGINE's available control commands.
3511 - executing control commands from command line arguments using the
3512 '-pre' and '-post' switches. '-post' is only used if '-t' is
3513 specified and the ENGINE is successfully initialised. The syntax for
3514 the individual commands are colon-separated, for example;
3515 openssl engine chil -pre FORK_CHECK:0 -pre SO_PATH:/lib/test.so
3518 *) New dynamic control command support for ENGINEs. ENGINEs can now
3519 declare their own commands (numbers), names (strings), descriptions,
3520 and input types for run-time discovery by calling applications. A
3521 subset of these commands are implicitly classed as "executable"
3522 depending on their input type, and only these can be invoked through
3523 the new string-based API function ENGINE_ctrl_cmd_string(). (Eg. this
3524 can be based on user input, config files, etc). The distinction is
3525 that "executable" commands cannot return anything other than a boolean
3526 result and can only support numeric or string input, whereas some
3527 discoverable commands may only be for direct use through
3528 ENGINE_ctrl(), eg. supporting the exchange of binary data, function
3529 pointers, or other custom uses. The "executable" commands are to
3530 support parameterisations of ENGINE behaviour that can be
3531 unambiguously defined by ENGINEs and used consistently across any
3532 OpenSSL-based application. Commands have been added to all the
3533 existing hardware-supporting ENGINEs, noticeably "SO_PATH" to allow
3534 control over shared-library paths without source code alterations.
3537 *) Changed all ENGINE implementations to dynamically allocate their
3538 ENGINEs rather than declaring them statically. Apart from this being
3539 necessary with the removal of the ENGINE_FLAGS_MALLOCED distinction,
3540 this also allows the implementations to compile without using the
3541 internal engine_int.h header.
3544 *) Minor adjustment to "rand" code. RAND_get_rand_method() now returns a
3545 'const' value. Any code that should be able to modify a RAND_METHOD
3546 should already have non-const pointers to it (ie. they should only
3547 modify their own ones).
3550 *) Made a variety of little tweaks to the ENGINE code.
3551 - "atalla" and "ubsec" string definitions were moved from header files
3552 to C code. "nuron" string definitions were placed in variables
3553 rather than hard-coded - allowing parameterisation of these values
3554 later on via ctrl() commands.
3555 - Removed unused "#if 0"'d code.
3556 - Fixed engine list iteration code so it uses ENGINE_free() to release
3557 structural references.
3558 - Constified the RAND_METHOD element of ENGINE structures.
3559 - Constified various get/set functions as appropriate and added
3560 missing functions (including a catch-all ENGINE_cpy that duplicates
3561 all ENGINE values onto a new ENGINE except reference counts/state).
3562 - Removed NULL parameter checks in get/set functions. Setting a method
3563 or function to NULL is a way of cancelling out a previously set
3564 value. Passing a NULL ENGINE parameter is just plain stupid anyway
3565 and doesn't justify the extra error symbols and code.
3566 - Deprecate the ENGINE_FLAGS_MALLOCED define and move the area for
3567 flags from engine_int.h to engine.h.
3568 - Changed prototypes for ENGINE handler functions (init(), finish(),
3569 ctrl(), key-load functions, etc) to take an (ENGINE*) parameter.
3572 *) Implement binary inversion algorithm for BN_mod_inverse in addition
3573 to the algorithm using long division. The binary algorithm can be
3574 used only if the modulus is odd. On 32-bit systems, it is faster
3575 only for relatively small moduli (roughly 20-30% for 128-bit moduli,
3576 roughly 5-15% for 256-bit moduli), so we use it only for moduli
3577 up to 450 bits. In 64-bit environments, the binary algorithm
3578 appears to be advantageous for much longer moduli; here we use it
3579 for moduli up to 2048 bits.
3582 *) Rewrite CHOICE field setting in ASN1_item_ex_d2i(). The old code
3583 could not support the combine flag in choice fields.
3586 *) Add a 'copy_extensions' option to the 'ca' utility. This copies
3587 extensions from a certificate request to the certificate.
3590 *) Allow multiple 'certopt' and 'nameopt' options to be separated
3591 by commas. Add 'namopt' and 'certopt' options to the 'ca' config
3592 file: this allows the display of the certificate about to be
3593 signed to be customised, to allow certain fields to be included
3594 or excluded and extension details. The old system didn't display
3595 multicharacter strings properly, omitted fields not in the policy
3596 and couldn't display additional details such as extensions.
3599 *) Function EC_POINTs_mul for multiple scalar multiplication
3600 of an arbitrary number of elliptic curve points
3601 \sum scalars[i]*points[i],
3602 optionally including the generator defined for the EC_GROUP:
3603 scalar*generator + \sum scalars[i]*points[i].
3605 EC_POINT_mul is a simple wrapper function for the typical case
3606 that the point list has just one item (besides the optional
3610 *) First EC_METHODs for curves over GF(p):
3612 EC_GFp_simple_method() uses the basic BN_mod_mul and BN_mod_sqr
3613 operations and provides various method functions that can also
3614 operate with faster implementations of modular arithmetic.
3616 EC_GFp_mont_method() reuses most functions that are part of
3617 EC_GFp_simple_method, but uses Montgomery arithmetic.
3619 [Bodo Moeller; point addition and point doubling
3620 implementation directly derived from source code provided by
3621 Lenka Fibikova <fibikova@exp-math.uni-essen.de>]
3623 *) Framework for elliptic curves (crypto/ec/ec.h, crypto/ec/ec_lcl.h,
3624 crypto/ec/ec_lib.c):
3626 Curves are EC_GROUP objects (with an optional group generator)
3627 based on EC_METHODs that are built into the library.
3629 Points are EC_POINT objects based on EC_GROUP objects.
3631 Most of the framework would be able to handle curves over arbitrary
3632 finite fields, but as there are no obvious types for fields other
3633 than GF(p), some functions are limited to that for now.
3636 *) Add the -HTTP option to s_server. It is similar to -WWW, but requires
3637 that the file contains a complete HTTP response.
3640 *) Add the ec directory to mkdef.pl and mkfiles.pl. In mkdef.pl
3641 change the def and num file printf format specifier from "%-40sXXX"
3642 to "%-39s XXX". The latter will always guarantee a space after the
3643 field while the former will cause them to run together if the field
3644 is 40 of more characters long.
3647 *) Constify the cipher and digest 'method' functions and structures
3648 and modify related functions to take constant EVP_MD and EVP_CIPHER
3652 *) Hide BN_CTX structure details in bn_lcl.h instead of publishing them
3653 in <openssl/bn.h>. Also further increase BN_CTX_NUM to 32.
3656 *) Modify EVP_Digest*() routines so they now return values. Although the
3657 internal software routines can never fail additional hardware versions
3661 *) Clean up crypto/err/err.h and change some error codes to avoid conflicts:
3663 Previously ERR_R_FATAL was too small and coincided with ERR_LIB_PKCS7
3664 (= ERR_R_PKCS7_LIB); it is now 64 instead of 32.
3667 ERR_R_NESTED_ASN1_ERROR
3669 ERR_R_MISSING_ASN1_EOS
3670 were 4 .. 9, conflicting with
3671 ERR_LIB_RSA (= ERR_R_RSA_LIB)
3673 ERR_LIB_PEM (= ERR_R_PEM_LIB).
3674 They are now 58 .. 63 (i.e., just below ERR_R_FATAL).
3676 Add new error code 'ERR_R_INTERNAL_ERROR'.
3679 *) Don't overuse locks in crypto/err/err.c: For data retrieval, CRYPTO_r_lock
3683 *) New option '-subj arg' for 'openssl req' and 'openssl ca'. This
3684 sets the subject name for a new request or supersedes the
3685 subject name in a given request. Formats that can be parsed are
3686 'CN=Some Name, OU=myOU, C=IT'
3688 'CN=Some Name/OU=myOU/C=IT'.
projects / openssl.git / blob