5 Changes between 0.9.8i and 0.9.9 [xx XXX xxxx]
7 *) Add support for distinct certificate and CRL paths. The CRL issuer
8 certificate is validated separately in this case. Only enabled if
9 an extended CRL support flag is set: this flag will enable additional
10 CRL functionality in future.
12 This work was sponsored by Google.
15 *) Add support for policy mappings extension.
17 This work was sponsored by Google.
20 *) Fixes to pathlength constraint, self issued certificate handling,
21 policy processing to align with RFC3280 and PKITS tests.
23 This work was sponsored by Google.
26 *) Support for name constraints certificate extension. DN, email, DNS
27 and URI types are currently supported.
29 This work was sponsored by Google.
32 *) To cater for systems that provide a pointer-based thread ID rather
33 than numeric, deprecate the current numeric thread ID mechanism and
34 replace it with a structure and associated callback type. This
35 mechanism allows a numeric "hash" to be extracted from a thread ID in
36 either case, and on platforms where pointers are larger than 'long',
37 mixing is done to help ensure the numeric 'hash' is usable even if it
38 can't be guaranteed unique. The default mechanism is to use "&errno"
39 as a pointer-based thread ID to distinguish between threads.
41 Applications that want to provide their own thread IDs should now use
42 CRYPTO_THREADID_set_callback() to register a callback that will call
43 either CRYPTO_THREADID_set_numeric() or CRYPTO_THREADID_set_pointer().
45 Note that ERR_remove_state() is now deprecated, because it is tied
46 to the assumption that thread IDs are numeric. ERR_remove_state(0)
47 to free the current thread's error state should be replaced by
48 ERR_remove_thread_state(NULL).
50 (This new approach replaces the functions CRYPTO_set_idptr_callback(),
51 CRYPTO_get_idptr_callback(), and CRYPTO_thread_idptr() that existed in
52 OpenSSL 0.9.9-dev between June 2006 and August 2008. Also, if an
53 application was previously providing a numeric thread callback that
54 was inappropriate for distinguishing threads, then uniqueness might
55 have been obtained with &errno that happened immediately in the
56 intermediate development versions of OpenSSL; this is no longer the
57 case, the numeric thread callback will now override the automatic use
59 [Geoff Thorpe, with help from Bodo Moeller]
61 *) Initial support for different CRL issuing certificates. This covers a
62 simple case where the self issued certificates in the chain exist and
63 the real CRL issuer is higher in the existing chain.
65 This work was sponsored by Google.
68 *) Removed effectively defunct crypto/store from the build.
71 *) Revamp of STACK to provide stronger type-checking. Still to come:
72 TXT_DB, bsearch(?), OBJ_bsearch, qsort, CRYPTO_EX_DATA, ASN1_VALUE,
73 ASN1_STRING, CONF_VALUE.
76 *) Add a new SSL_MODE_RELEASE_BUFFERS mode flag to release unused buffer
77 RAM on SSL connections. This option can save about 34k per idle SSL.
80 *) Revamp of LHASH to provide stronger type-checking. Still to come:
81 STACK, TXT_DB, bsearch, qsort.
84 *) Initial support for Cryptographic Message Syntax (aka CMS) based
85 on RFC3850, RFC3851 and RFC3852. New cms directory and cms utility,
86 support for data, signedData, compressedData, digestedData and
87 encryptedData, envelopedData types included. Scripts to check against
88 RFC4134 examples draft and interop and consistency checks of many
89 content types and variants.
92 *) Add options to enc utility to support use of zlib compression BIO.
95 *) Extend mk1mf to support importing of options and assembly language
96 files from Configure script, currently only included in VC-WIN32.
97 The assembly language rules can now optionally generate the source
98 files from the associated perl scripts.
101 *) Implement remaining functionality needed to support GOST ciphersuites.
102 Interop testing has been performed using CryptoPro implementations.
103 [Victor B. Wagner <vitus@cryptocom.ru>]
105 *) s390x assembler pack.
108 *) ARMv4 assembler pack. ARMv4 refers to v4 and later ISA, not CPU
112 *) Implement Opaque PRF Input TLS extension as specified in
113 draft-rescorla-tls-opaque-prf-input-00.txt. Since this is not an
114 official specification yet and no extension type assignment by
115 IANA exists, this extension (for now) will have to be explicitly
116 enabled when building OpenSSL by providing the extension number
117 to use. For example, specify an option
119 -DTLSEXT_TYPE_opaque_prf_input=0x9527
121 to the "config" or "Configure" script to enable the extension,
122 assuming extension number 0x9527 (which is a completely arbitrary
123 and unofficial assignment based on the MD5 hash of the Internet
124 Draft). Note that by doing so, you potentially lose
125 interoperability with other TLS implementations since these might
126 be using the same extension number for other purposes.
128 SSL_set_tlsext_opaque_prf_input(ssl, src, len) is used to set the
129 opaque PRF input value to use in the handshake. This will create
130 an interal copy of the length-'len' string at 'src', and will
131 return non-zero for success.
133 To get more control and flexibility, provide a callback function
136 SSL_CTX_set_tlsext_opaque_prf_input_callback(ctx, cb)
137 SSL_CTX_set_tlsext_opaque_prf_input_callback_arg(ctx, arg)
141 int (*cb)(SSL *, void *peerinput, size_t len, void *arg);
144 Callback function 'cb' will be called in handshakes, and is
145 expected to use SSL_set_tlsext_opaque_prf_input() as appropriate.
146 Argument 'arg' is for application purposes (the value as given to
147 SSL_CTX_set_tlsext_opaque_prf_input_callback_arg() will directly
148 be provided to the callback function). The callback function
149 has to return non-zero to report success: usually 1 to use opaque
150 PRF input just if possible, or 2 to enforce use of the opaque PRF
151 input. In the latter case, the library will abort the handshake
152 if opaque PRF input is not successfully negotiated.
154 Arguments 'peerinput' and 'len' given to the callback function
155 will always be NULL and 0 in the case of a client. A server will
156 see the client's opaque PRF input through these variables if
157 available (NULL and 0 otherwise). Note that if the server
158 provides an opaque PRF input, the length must be the same as the
159 length of the client's opaque PRF input.
161 Note that the callback function will only be called when creating
162 a new session (session resumption can resume whatever was
163 previously negotiated), and will not be called in SSL 2.0
164 handshakes; thus, SSL_CTX_set_options(ctx, SSL_OP_NO_SSLv2) or
165 SSL_set_options(ssl, SSL_OP_NO_SSLv2) is especially recommended
166 for applications that need to enforce opaque PRF input.
170 *) Update ssl code to support digests other than SHA1+MD5 for handshake
173 [Victor B. Wagner <vitus@cryptocom.ru>]
175 *) Add RFC4507 support to OpenSSL. This includes the corrections in
176 RFC4507bis. The encrypted ticket format is an encrypted encoded
177 SSL_SESSION structure, that way new session features are automatically
180 If a client application caches session in an SSL_SESSION structure
181 support is transparent because tickets are now stored in the encoded
184 The SSL_CTX structure automatically generates keys for ticket
185 protection in servers so again support should be possible
186 with no application modification.
188 If a client or server wishes to disable RFC4507 support then the option
189 SSL_OP_NO_TICKET can be set.
191 Add a TLS extension debugging callback to allow the contents of any client
192 or server extensions to be examined.
194 This work was sponsored by Google.
197 *) Final changes to avoid use of pointer pointer casts in OpenSSL.
198 OpenSSL should now compile cleanly on gcc 4.2
199 [Peter Hartley <pdh@utter.chaos.org.uk>, Steve Henson]
201 *) Update SSL library to use new EVP_PKEY MAC API. Include generic MAC
202 support including streaming MAC support: this is required for GOST
204 [Victor B. Wagner <vitus@cryptocom.ru>, Steve Henson]
206 *) Add option -stream to use PKCS#7 streaming in smime utility. New
207 function i2d_PKCS7_bio_stream() and PEM_write_PKCS7_bio_stream()
208 to output in BER and PEM format.
211 *) Experimental support for use of HMAC via EVP_PKEY interface. This
212 allows HMAC to be handled via the EVP_DigestSign*() interface. The
213 EVP_PKEY "key" in this case is the HMAC key, potentially allowing
214 ENGINE support for HMAC keys which are unextractable. New -mac and
215 -macopt options to dgst utility.
218 *) New option -sigopt to dgst utility. Update dgst to use
219 EVP_Digest{Sign,Verify}*. These two changes make it possible to use
220 alternative signing paramaters such as X9.31 or PSS in the dgst
224 *) Change ssl_cipher_apply_rule(), the internal function that does
225 the work each time a ciphersuite string requests enabling
226 ("foo+bar"), moving ("+foo+bar"), disabling ("-foo+bar", or
227 removing ("!foo+bar") a class of ciphersuites: Now it maintains
228 the order of disabled ciphersuites such that those ciphersuites
229 that most recently went from enabled to disabled not only stay
230 in order with respect to each other, but also have higher priority
231 than other disabled ciphersuites the next time ciphersuites are
234 This means that you can now say, e.g., "PSK:-PSK:HIGH" to enable
235 the same ciphersuites as with "HIGH" alone, but in a specific
236 order where the PSK ciphersuites come first (since they are the
237 most recently disabled ciphersuites when "HIGH" is parsed).
239 Also, change ssl_create_cipher_list() (using this new
240 funcionality) such that between otherwise identical
241 cihpersuites, ephemeral ECDH is preferred over ephemeral DH in
245 *) Change ssl_create_cipher_list() so that it automatically
246 arranges the ciphersuites in reasonable order before starting
247 to process the rule string. Thus, the definition for "DEFAULT"
248 (SSL_DEFAULT_CIPHER_LIST) now is just "ALL:!aNULL:!eNULL", but
249 remains equivalent to "AES:ALL:!aNULL:!eNULL:+aECDH:+kRSA:+RC4:@STRENGTH".
250 This makes it much easier to arrive at a reasonable default order
251 in applications for which anonymous ciphers are OK (meaning
252 that you can't actually use DEFAULT).
253 [Bodo Moeller; suggested by Victor Duchovni]
255 *) Split the SSL/TLS algorithm mask (as used for ciphersuite string
256 processing) into multiple integers instead of setting
257 "SSL_MKEY_MASK" bits, "SSL_AUTH_MASK" bits, "SSL_ENC_MASK",
258 "SSL_MAC_MASK", and "SSL_SSL_MASK" bits all in a single integer.
259 (These masks as well as the individual bit definitions are hidden
260 away into the non-exported interface ssl/ssl_locl.h, so this
261 change to the definition of the SSL_CIPHER structure shouldn't
262 affect applications.) This give us more bits for each of these
263 categories, so there is no longer a need to coagulate AES128 and
264 AES256 into a single algorithm bit, and to coagulate Camellia128
265 and Camellia256 into a single algorithm bit, which has led to all
268 Thus, among other things, the kludge introduced in 0.9.7m and
269 0.9.8e for masking out AES256 independently of AES128 or masking
270 out Camellia256 independently of AES256 is not needed here in 0.9.9.
272 With the change, we also introduce new ciphersuite aliases that
273 so far were missing: "AES128", "AES256", "CAMELLIA128", and
277 *) Add support for dsa-with-SHA224 and dsa-with-SHA256.
278 Use the leftmost N bytes of the signature input if the input is
279 larger than the prime q (with N being the size in bytes of q).
282 *) Very *very* experimental PKCS#7 streaming encoder support. Nothing uses
283 it yet and it is largely untested.
286 *) Add support for the ecdsa-with-SHA224/256/384/512 signature types.
289 *) Initial incomplete changes to avoid need for function casts in OpenSSL
290 some compilers (gcc 4.2 and later) reject their use. Safestack is
291 reimplemented. Update ASN1 to avoid use of legacy functions.
294 *) Win32/64 targets are linked with Winsock2.
297 *) Add an X509_CRL_METHOD structure to allow CRL processing to be redirected
298 to external functions. This can be used to increase CRL handling
299 efficiency especially when CRLs are very large by (for example) storing
300 the CRL revoked certificates in a database.
303 *) Overhaul of by_dir code. Add support for dynamic loading of CRLs so
304 new CRLs added to a directory can be used. New command line option
305 -verify_return_error to s_client and s_server. This causes real errors
306 to be returned by the verify callback instead of carrying on no matter
307 what. This reflects the way a "real world" verify callback would behave.
310 *) GOST engine, supporting several GOST algorithms and public key formats.
311 Kindly donated by Cryptocom.
314 *) Partial support for Issuing Distribution Point CRL extension. CRLs
315 partitioned by DP are handled but no indirect CRL or reason partitioning
316 (yet). Complete overhaul of CRL handling: now the most suitable CRL is
317 selected via a scoring technique which handles IDP and AKID in CRLs.
320 *) New X509_STORE_CTX callbacks lookup_crls() and lookup_certs() which
321 will ultimately be used for all verify operations: this will remove the
322 X509_STORE dependency on certificate verification and allow alternative
323 lookup methods. X509_STORE based implementations of these two callbacks.
326 *) Allow multiple CRLs to exist in an X509_STORE with matching issuer names.
327 Modify get_crl() to find a valid (unexpired) CRL if possible.
330 *) New function X509_CRL_match() to check if two CRLs are identical. Normally
331 this would be called X509_CRL_cmp() but that name is already used by
332 a function that just compares CRL issuer names. Cache several CRL
333 extensions in X509_CRL structure and cache CRLDP in X509.
336 *) Store a "canonical" representation of X509_NAME structure (ASN1 Name)
337 this maps equivalent X509_NAME structures into a consistent structure.
338 Name comparison can then be performed rapidly using memcmp().
341 *) Non-blocking OCSP request processing. Add -timeout option to ocsp
345 *) Allow digests to supply their own micalg string for S/MIME type using
346 the ctrl EVP_MD_CTRL_MICALG.
349 *) During PKCS7 signing pass the PKCS7 SignerInfo structure to the
350 EVP_PKEY_METHOD before and after signing via the EVP_PKEY_CTRL_PKCS7_SIGN
351 ctrl. It can then customise the structure before and/or after signing
355 *) New function OBJ_add_sigid() to allow application defined signature OIDs
356 to be added to OpenSSLs internal tables. New function OBJ_sigid_free()
357 to free up any added signature OIDs.
360 *) New functions EVP_CIPHER_do_all(), EVP_CIPHER_do_all_sorted(),
361 EVP_MD_do_all() and EVP_MD_do_all_sorted() to enumerate internal
362 digest and cipher tables. New options added to openssl utility:
363 list-message-digest-algorithms and list-cipher-algorithms.
366 *) Change the array representation of binary polynomials: the list
367 of degrees of non-zero coefficients is now terminated with -1.
368 Previously it was terminated with 0, which was also part of the
369 value; thus, the array representation was not applicable to
370 polynomials where t^0 has coefficient zero. This change makes
371 the array representation useful in a more general context.
374 *) Various modifications and fixes to SSL/TLS cipher string
375 handling. For ECC, the code now distinguishes between fixed ECDH
376 with RSA certificates on the one hand and with ECDSA certificates
377 on the other hand, since these are separate ciphersuites. The
378 unused code for Fortezza ciphersuites has been removed.
380 For consistency with EDH, ephemeral ECDH is now called "EECDH"
381 (not "ECDHE"). For consistency with the code for DH
382 certificates, use of ECDH certificates is now considered ECDH
383 authentication, not RSA or ECDSA authentication (the latter is
384 merely the CA's signing algorithm and not actively used in the
387 The temporary ciphersuite alias "ECCdraft" is no longer
388 available, and ECC ciphersuites are no longer excluded from "ALL"
389 and "DEFAULT". The following aliases now exist for RFC 4492
390 ciphersuites, most of these by analogy with the DH case:
392 kECDHr - ECDH cert, signed with RSA
393 kECDHe - ECDH cert, signed with ECDSA
394 kECDH - ECDH cert (signed with either RSA or ECDSA)
395 kEECDH - ephemeral ECDH
396 ECDH - ECDH cert or ephemeral ECDH
402 AECDH - anonymous ECDH
403 EECDH - non-anonymous ephemeral ECDH (equivalent to "kEECDH:-AECDH")
407 *) Add additional S/MIME capabilities for AES and GOST ciphers if supported.
408 Use correct micalg parameters depending on digest(s) in signed message.
411 *) Add engine support for EVP_PKEY_ASN1_METHOD. Add functions to process
412 an ENGINE asn1 method. Support ENGINE lookups in the ASN1 code.
415 *) Initial engine support for EVP_PKEY_METHOD. New functions to permit
416 an engine to register a method. Add ENGINE lookups for methods and
417 functional reference processing.
420 *) New functions EVP_Digest{Sign,Verify)*. These are enchance versions of
421 EVP_{Sign,Verify}* which allow an application to customise the signature
425 *) New -resign option to smime utility. This adds one or more signers
426 to an existing PKCS#7 signedData structure. Also -md option to use an
427 alternative message digest algorithm for signing.
430 *) Tidy up PKCS#7 routines and add new functions to make it easier to
431 create PKCS7 structures containing multiple signers. Update smime
432 application to support multiple signers.
435 *) New -macalg option to pkcs12 utility to allow setting of an alternative
439 *) Initial support for PKCS#5 v2.0 PRFs other than default SHA1 HMAC.
440 Reorganize PBE internals to lookup from a static table using NIDs,
441 add support for HMAC PBE OID translation. Add a EVP_CIPHER ctrl:
442 EVP_CTRL_PBE_PRF_NID this allows a cipher to specify an alternative
443 PRF which will be automatically used with PBES2.
446 *) Replace the algorithm specific calls to generate keys in "req" with the
450 *) Update PKCS#7 enveloped data routines to use new API. This is now
451 supported by any public key method supporting the encrypt operation. A
452 ctrl is added to allow the public key algorithm to examine or modify
453 the PKCS#7 RecipientInfo structure if it needs to: for RSA this is
457 *) Add a ctrl to asn1 method to allow a public key algorithm to express
458 a default digest type to use. In most cases this will be SHA1 but some
459 algorithms (such as GOST) need to specify an alternative digest. The
460 return value indicates how strong the prefernce is 1 means optional and
461 2 is mandatory (that is it is the only supported type). Modify
462 ASN1_item_sign() to accept a NULL digest argument to indicate it should
463 use the default md. Update openssl utilities to use the default digest
464 type for signing if it is not explicitly indicated.
467 *) Use OID cross reference table in ASN1_sign() and ASN1_verify(). New
468 EVP_MD flag EVP_MD_FLAG_PKEY_METHOD_SIGNATURE. This uses the relevant
469 signing method from the key type. This effectively removes the link
470 between digests and public key types.
473 *) Add an OID cross reference table and utility functions. Its purpose is to
474 translate between signature OIDs such as SHA1WithrsaEncryption and SHA1,
475 rsaEncryption. This will allow some of the algorithm specific hackery
476 needed to use the correct OID to be removed.
479 *) Remove algorithm specific dependencies when setting PKCS7_SIGNER_INFO
480 structures for PKCS7_sign(). They are now set up by the relevant public
484 *) Add provisional EC pkey method with support for ECDSA and ECDH.
487 *) Add support for key derivation (agreement) in the API, DH method and
491 *) Add DSA pkey method and DH pkey methods, extend DH ASN1 method to support
492 public and private key formats. As a side effect these add additional
493 command line functionality not previously available: DSA signatures can be
494 generated and verified using pkeyutl and DH key support and generation in
499 [Oliver Tappe <zooey@hirschkaefer.de>]
501 *) New make target "install_html_docs" installs HTML renditions of the
503 [Oliver Tappe <zooey@hirschkaefer.de>]
505 *) New utility "genpkey" this is analagous to "genrsa" etc except it can
506 generate keys for any algorithm. Extend and update EVP_PKEY_METHOD to
507 support key and parameter generation and add initial key generation
508 functionality for RSA.
511 *) Add functions for main EVP_PKEY_method operations. The undocumented
512 functions EVP_PKEY_{encrypt,decrypt} have been renamed to
513 EVP_PKEY_{encrypt,decrypt}_old.
516 *) Initial definitions for EVP_PKEY_METHOD. This will be a high level public
517 key API, doesn't do much yet.
520 *) New function EVP_PKEY_asn1_get0_info() to retrieve information about
521 public key algorithms. New option to openssl utility:
522 "list-public-key-algorithms" to print out info.
525 *) Implement the Supported Elliptic Curves Extension for
526 ECC ciphersuites from draft-ietf-tls-ecc-12.txt.
529 *) Don't free up OIDs in OBJ_cleanup() if they are in use by EVP_MD or
530 EVP_CIPHER structures to avoid later problems in EVP_cleanup().
533 *) New utilities pkey and pkeyparam. These are similar to algorithm specific
534 utilities such as rsa, dsa, dsaparam etc except they process any key
538 *) Transfer public key printing routines to EVP_PKEY_ASN1_METHOD. New
539 functions EVP_PKEY_print_public(), EVP_PKEY_print_private(),
540 EVP_PKEY_print_param() to print public key data from an EVP_PKEY
544 *) Initial support for pluggable public key ASN1.
545 De-spaghettify the public key ASN1 handling. Move public and private
546 key ASN1 handling to a new EVP_PKEY_ASN1_METHOD structure. Relocate
547 algorithm specific handling to a single module within the relevant
548 algorithm directory. Add functions to allow (near) opaque processing
549 of public and private key structures.
552 *) Implement the Supported Point Formats Extension for
553 ECC ciphersuites from draft-ietf-tls-ecc-12.txt.
556 *) Add initial support for RFC 4279 PSK TLS ciphersuites. Add members
557 for the psk identity [hint] and the psk callback functions to the
558 SSL_SESSION, SSL and SSL_CTX structure.
561 PSK-RC4-SHA, PSK-3DES-EDE-CBC-SHA, PSK-AES128-CBC-SHA,
565 SSL_CTX_use_psk_identity_hint
566 SSL_get_psk_identity_hint
568 SSL_use_psk_identity_hint
570 [Mika Kousa and Pasi Eronen of Nokia Corporation]
572 *) Add RFC 3161 compliant time stamp request creation, response generation
573 and response verification functionality.
574 [Zoltán Glózik <zglozik@opentsa.org>, The OpenTSA Project]
576 *) Add initial support for TLS extensions, specifically for the server_name
577 extension so far. The SSL_SESSION, SSL_CTX, and SSL data structures now
578 have new members for a host name. The SSL data structure has an
579 additional member SSL_CTX *initial_ctx so that new sessions can be
580 stored in that context to allow for session resumption, even after the
581 SSL has been switched to a new SSL_CTX in reaction to a client's
582 server_name extension.
584 New functions (subject to change):
587 SSL_get_servername_type()
590 New CTRL codes and macros (subject to change):
592 SSL_CTRL_SET_TLSEXT_SERVERNAME_CB
593 - SSL_CTX_set_tlsext_servername_callback()
594 SSL_CTRL_SET_TLSEXT_SERVERNAME_ARG
595 - SSL_CTX_set_tlsext_servername_arg()
596 SSL_CTRL_SET_TLSEXT_HOSTNAME - SSL_set_tlsext_host_name()
598 openssl s_client has a new '-servername ...' option.
600 openssl s_server has new options '-servername_host ...', '-cert2 ...',
601 '-key2 ...', '-servername_fatal' (subject to change). This allows
602 testing the HostName extension for a specific single host name ('-cert'
603 and '-key' remain fallbacks for handshakes without HostName
604 negotiation). If the unrecogninzed_name alert has to be sent, this by
605 default is a warning; it becomes fatal with the '-servername_fatal'
608 [Peter Sylvester, Remy Allais, Christophe Renou]
610 *) Whirlpool hash implementation is added.
613 *) BIGNUM code on 64-bit SPARCv9 targets is switched from bn(64,64) to
614 bn(64,32). Because of instruction set limitations it doesn't have
615 any negative impact on performance. This was done mostly in order
616 to make it possible to share assembler modules, such as bn_mul_mont
617 implementations, between 32- and 64-bit builds without hassle.
620 *) Move code previously exiled into file crypto/ec/ec2_smpt.c
621 to ec2_smpl.c, and no longer require the OPENSSL_EC_BIN_PT_COMP
625 *) New candidate for BIGNUM assembler implementation, bn_mul_mont,
626 dedicated Montgomery multiplication procedure, is introduced.
627 BN_MONT_CTX is modified to allow bn_mul_mont to reach for higher
628 "64-bit" performance on certain 32-bit targets.
631 *) New option SSL_OP_NO_COMP to disable use of compression selectively
632 in SSL structures. New SSL ctrl to set maximum send fragment size.
633 Save memory by seeting the I/O buffer sizes dynamically instead of
634 using the maximum available value.
637 *) New option -V for 'openssl ciphers'. This prints the ciphersuite code
638 in addition to the text details.
641 *) Very, very preliminary EXPERIMENTAL support for printing of general
642 ASN1 structures. This currently produces rather ugly output and doesn't
643 handle several customised structures at all.
646 *) Integrated support for PVK file format and some related formats such
647 as MS PUBLICKEYBLOB and PRIVATEKEYBLOB. Command line switches to support
648 these in the 'rsa' and 'dsa' utilities.
651 *) Support for PKCS#1 RSAPublicKey format on rsa utility command line.
654 *) Remove the ancient ASN1_METHOD code. This was only ever used in one
655 place for the (very old) "NETSCAPE" format certificates which are now
656 handled using new ASN1 code equivalents.
659 *) Let the TLSv1_method() etc. functions return a 'const' SSL_METHOD
660 pointer and make the SSL_METHOD parameter in SSL_CTX_new,
661 SSL_CTX_set_ssl_version and SSL_set_ssl_method 'const'.
664 *) Modify CRL distribution points extension code to print out previously
665 unsupported fields. Enhance extension setting code to allow setting of
669 *) Add print and set support for Issuing Distribution Point CRL extension.
672 *) Change 'Configure' script to enable Camellia by default.
675 Changes between 0.9.8h and 0.9.8i [xx XXX xxxx]
677 *) Add support for Local Machine Keyset attribute in PKCS#12 files.
680 *) Fix BN_GF2m_mod_arr() top-bit cleanup code.
683 *) Expand ENGINE to support engine supplied SSL client certificate functions.
685 This work was sponsored by Logica.
688 *) Add CryptoAPI ENGINE to support use of RSA and DSA keys held in Windows
689 keystores. Support for SSL/TLS client authentication too.
690 Not compiled unless enable-capieng specified to Configure.
692 This work was sponsored by Logica.
695 Changes between 0.9.8g and 0.9.8h [28 May 2008]
697 *) Fix flaw if 'Server Key exchange message' is omitted from a TLS
698 handshake which could lead to a cilent crash as found using the
699 Codenomicon TLS test suite (CVE-2008-1672)
700 [Steve Henson, Mark Cox]
702 *) Fix double free in TLS server name extensions which could lead to
703 a remote crash found by Codenomicon TLS test suite (CVE-2008-0891)
706 *) Clear error queue in SSL_CTX_use_certificate_chain_file()
708 Clear the error queue to ensure that error entries left from
709 older function calls do not interfere with the correct operation.
710 [Lutz Jaenicke, Erik de Castro Lopo]
712 *) Remove root CA certificates of commercial CAs:
714 The OpenSSL project does not recommend any specific CA and does not
715 have any policy with respect to including or excluding any CA.
716 Therefore it does not make any sense to ship an arbitrary selection
717 of root CA certificates with the OpenSSL software.
720 *) RSA OAEP patches to fix two separate invalid memory reads.
721 The first one involves inputs when 'lzero' is greater than
722 'SHA_DIGEST_LENGTH' (it would read about SHA_DIGEST_LENGTH bytes
723 before the beginning of from). The second one involves inputs where
724 the 'db' section contains nothing but zeroes (there is a one-byte
725 invalid read after the end of 'db').
726 [Ivan Nestlerode <inestlerode@us.ibm.com>]
728 *) Add TLS session ticket callback. This allows an application to set
729 TLS ticket cipher and HMAC keys rather than relying on hardcoded fixed
730 values. This is useful for key rollover for example where several key
731 sets may exist with different names.
734 *) Reverse ENGINE-internal logic for caching default ENGINE handles.
735 This was broken until now in 0.9.8 releases, such that the only way
736 a registered ENGINE could be used (assuming it initialises
737 successfully on the host) was to explicitly set it as the default
738 for the relevant algorithms. This is in contradiction with 0.9.7
739 behaviour and the documentation. With this fix, when an ENGINE is
740 registered into a given algorithm's table of implementations, the
741 'uptodate' flag is reset so that auto-discovery will be used next
742 time a new context for that algorithm attempts to select an
744 [Ian Lister (tweaked by Geoff Thorpe)]
746 *) Update the GMP engine glue to do direct copies between BIGNUM and
747 mpz_t when openssl and GMP use the same limb size. Otherwise the
748 existing "conversion via a text string export" trick is still used.
749 [Paul Sheer <paulsheer@gmail.com>, Geoff Thorpe]
751 *) Zlib compression BIO. This is a filter BIO which compressed and
752 uncompresses any data passed through it.
755 *) Add AES_wrap_key() and AES_unwrap_key() functions to implement
756 RFC3394 compatible AES key wrapping.
759 *) Add utility functions to handle ASN1 structures. ASN1_STRING_set0():
760 sets string data without copying. X509_ALGOR_set0() and
761 X509_ALGOR_get0(): set and retrieve X509_ALGOR (AlgorithmIdentifier)
762 data. Attribute function X509at_get0_data_by_OBJ(): retrieves data
763 from an X509_ATTRIBUTE structure optionally checking it occurs only
764 once. ASN1_TYPE_set1(): set and ASN1_TYPE structure copying supplied
768 *) Fix BN flag handling in RSA_eay_mod_exp() and BN_MONT_CTX_set()
769 to get the expected BN_FLG_CONSTTIME behavior.
770 [Bodo Moeller (Google)]
774 - fixed wrong usage of ioctlsocket() when build for LIBC BSD sockets
775 - fixed do_tests.pl to run the test suite with CLIB builds too (CLIB_OPT)
776 - added some more tests to do_tests.pl
777 - fixed RunningProcess usage so that it works with newer LIBC NDKs too
778 - removed usage of BN_LLONG for CLIB builds to avoid runtime dependency
779 - added new Configure targets netware-clib-bsdsock, netware-clib-gcc,
780 netware-clib-bsdsock-gcc, netware-libc-bsdsock-gcc
781 - various changes to netware.pl to enable gcc-cross builds on Win32
783 - changed crypto/bio/b_sock.c to work with macro functions (CLIB BSD)
784 - various changes to fix missing prototype warnings
785 - fixed x86nasm.pl to create correct asm files for NASM COFF output
786 - added AES, WHIRLPOOL and CPUID assembler code to build files
787 - added missing AES assembler make rules to mk1mf.pl
788 - fixed order of includes in apps/ocsp.c so that e_os.h settings apply
789 [Guenter Knauf <eflash@gmx.net>]
791 *) Implement certificate status request TLS extension defined in RFC3546.
792 A client can set the appropriate parameters and receive the encoded
793 OCSP response via a callback. A server can query the supplied parameters
794 and set the encoded OCSP response in the callback. Add simplified examples
795 to s_client and s_server.
798 Changes between 0.9.8f and 0.9.8g [19 Oct 2007]
801 + Binary incompatibility of ssl_ctx_st structure
802 + DTLS interoperation with non-compliant servers
803 + Don't call get_session_cb() without proposed session
804 + Fix ia64 assembler code
805 [Andy Polyakov, Steve Henson]
807 Changes between 0.9.8e and 0.9.8f [11 Oct 2007]
809 *) DTLS Handshake overhaul. There were longstanding issues with
810 OpenSSL DTLS implementation, which were making it impossible for
811 RFC 4347 compliant client to communicate with OpenSSL server.
812 Unfortunately just fixing these incompatibilities would "cut off"
813 pre-0.9.8f clients. To allow for hassle free upgrade post-0.9.8e
814 server keeps tolerating non RFC compliant syntax. The opposite is
815 not true, 0.9.8f client can not communicate with earlier server.
816 This update even addresses CVE-2007-4995.
819 *) Changes to avoid need for function casts in OpenSSL: some compilers
820 (gcc 4.2 and later) reject their use.
821 [Kurt Roeckx <kurt@roeckx.be>, Peter Hartley <pdh@utter.chaos.org.uk>,
824 *) Add RFC4507 support to OpenSSL. This includes the corrections in
825 RFC4507bis. The encrypted ticket format is an encrypted encoded
826 SSL_SESSION structure, that way new session features are automatically
829 If a client application caches session in an SSL_SESSION structure
830 support is transparent because tickets are now stored in the encoded
833 The SSL_CTX structure automatically generates keys for ticket
834 protection in servers so again support should be possible
835 with no application modification.
837 If a client or server wishes to disable RFC4507 support then the option
838 SSL_OP_NO_TICKET can be set.
840 Add a TLS extension debugging callback to allow the contents of any client
841 or server extensions to be examined.
843 This work was sponsored by Google.
846 *) Add initial support for TLS extensions, specifically for the server_name
847 extension so far. The SSL_SESSION, SSL_CTX, and SSL data structures now
848 have new members for a host name. The SSL data structure has an
849 additional member SSL_CTX *initial_ctx so that new sessions can be
850 stored in that context to allow for session resumption, even after the
851 SSL has been switched to a new SSL_CTX in reaction to a client's
852 server_name extension.
854 New functions (subject to change):
857 SSL_get_servername_type()
860 New CTRL codes and macros (subject to change):
862 SSL_CTRL_SET_TLSEXT_SERVERNAME_CB
863 - SSL_CTX_set_tlsext_servername_callback()
864 SSL_CTRL_SET_TLSEXT_SERVERNAME_ARG
865 - SSL_CTX_set_tlsext_servername_arg()
866 SSL_CTRL_SET_TLSEXT_HOSTNAME - SSL_set_tlsext_host_name()
868 openssl s_client has a new '-servername ...' option.
870 openssl s_server has new options '-servername_host ...', '-cert2 ...',
871 '-key2 ...', '-servername_fatal' (subject to change). This allows
872 testing the HostName extension for a specific single host name ('-cert'
873 and '-key' remain fallbacks for handshakes without HostName
874 negotiation). If the unrecogninzed_name alert has to be sent, this by
875 default is a warning; it becomes fatal with the '-servername_fatal'
878 [Peter Sylvester, Remy Allais, Christophe Renou, Steve Henson]
880 *) Add AES and SSE2 assembly language support to VC++ build.
883 *) Mitigate attack on final subtraction in Montgomery reduction.
886 *) Fix crypto/ec/ec_mult.c to work properly with scalars of value 0
887 (which previously caused an internal error).
890 *) Squeeze another 10% out of IGE mode when in != out.
893 *) AES IGE mode speedup.
894 [Dean Gaudet (Google)]
896 *) Add the Korean symmetric 128-bit cipher SEED (see
897 http://www.kisa.or.kr/kisa/seed/jsp/seed_eng.jsp) and
898 add SEED ciphersuites from RFC 4162:
900 TLS_RSA_WITH_SEED_CBC_SHA = "SEED-SHA"
901 TLS_DHE_DSS_WITH_SEED_CBC_SHA = "DHE-DSS-SEED-SHA"
902 TLS_DHE_RSA_WITH_SEED_CBC_SHA = "DHE-RSA-SEED-SHA"
903 TLS_DH_anon_WITH_SEED_CBC_SHA = "ADH-SEED-SHA"
905 To minimize changes between patchlevels in the OpenSSL 0.9.8
906 series, SEED remains excluded from compilation unless OpenSSL
907 is configured with 'enable-seed'.
910 *) Mitigate branch prediction attacks, which can be practical if a
911 single processor is shared, allowing a spy process to extract
912 information. For detailed background information, see
913 http://eprint.iacr.org/2007/039 (O. Aciicmez, S. Gueron,
914 J.-P. Seifert, "New Branch Prediction Vulnerabilities in OpenSSL
915 and Necessary Software Countermeasures"). The core of the change
916 are new versions BN_div_no_branch() and
917 BN_mod_inverse_no_branch() of BN_div() and BN_mod_inverse(),
918 respectively, which are slower, but avoid the security-relevant
919 conditional branches. These are automatically called by BN_div()
920 and BN_mod_inverse() if the flag BN_FLG_CONSTTIME is set for one
921 of the input BIGNUMs. Also, BN_is_bit_set() has been changed to
922 remove a conditional branch.
924 BN_FLG_CONSTTIME is the new name for the previous
925 BN_FLG_EXP_CONSTTIME flag, since it now affects more than just
926 modular exponentiation. (Since OpenSSL 0.9.7h, setting this flag
927 in the exponent causes BN_mod_exp_mont() to use the alternative
928 implementation in BN_mod_exp_mont_consttime().) The old name
929 remains as a deprecated alias.
931 Similary, RSA_FLAG_NO_EXP_CONSTTIME is replaced by a more general
932 RSA_FLAG_NO_CONSTTIME flag since the RSA implementation now uses
933 constant-time implementations for more than just exponentiation.
934 Here too the old name is kept as a deprecated alias.
936 BN_BLINDING_new() will now use BN_dup() for the modulus so that
937 the BN_BLINDING structure gets an independent copy of the
938 modulus. This means that the previous "BIGNUM *m" argument to
939 BN_BLINDING_new() and to BN_BLINDING_create_param() now
940 essentially becomes "const BIGNUM *m", although we can't actually
941 change this in the header file before 0.9.9. It allows
942 RSA_setup_blinding() to use BN_with_flags() on the modulus to
943 enable BN_FLG_CONSTTIME.
945 [Matthew D Wood (Intel Corp)]
947 *) In the SSL/TLS server implementation, be strict about session ID
948 context matching (which matters if an application uses a single
949 external cache for different purposes). Previously,
950 out-of-context reuse was forbidden only if SSL_VERIFY_PEER was
951 set. This did ensure strict client verification, but meant that,
952 with applications using a single external cache for quite
953 different requirements, clients could circumvent ciphersuite
954 restrictions for a given session ID context by starting a session
955 in a different context.
958 *) Include "!eNULL" in SSL_DEFAULT_CIPHER_LIST to make sure that
959 a ciphersuite string such as "DEFAULT:RSA" cannot enable
960 authentication-only ciphersuites.
963 Changes between 0.9.8d and 0.9.8e [23 Feb 2007]
965 *) Since AES128 and AES256 (and similarly Camellia128 and
966 Camellia256) share a single mask bit in the logic of
967 ssl/ssl_ciph.c, the code for masking out disabled ciphers needs a
968 kludge to work properly if AES128 is available and AES256 isn't
969 (or if Camellia128 is available and Camellia256 isn't).
972 *) Fix the BIT STRING encoding generated by crypto/ec/ec_asn1.c
973 (within i2d_ECPrivateKey, i2d_ECPKParameters, i2d_ECParameters):
974 When a point or a seed is encoded in a BIT STRING, we need to
975 prevent the removal of trailing zero bits to get the proper DER
976 encoding. (By default, crypto/asn1/a_bitstr.c assumes the case
977 of a NamedBitList, for which trailing 0 bits need to be removed.)
980 *) Have SSL/TLS server implementation tolerate "mismatched" record
981 protocol version while receiving ClientHello even if the
982 ClientHello is fragmented. (The server can't insist on the
983 particular protocol version it has chosen before the ServerHello
984 message has informed the client about his choice.)
987 *) Add RFC 3779 support.
988 [Rob Austein for ARIN, Ben Laurie]
990 *) Load error codes if they are not already present instead of using a
991 static variable. This allows them to be cleanly unloaded and reloaded.
992 Improve header file function name parsing.
995 *) extend SMTP and IMAP protocol emulation in s_client to use EHLO
996 or CAPABILITY handshake as required by RFCs.
999 Changes between 0.9.8c and 0.9.8d [28 Sep 2006]
1001 *) Introduce limits to prevent malicious keys being able to
1002 cause a denial of service. (CVE-2006-2940)
1003 [Steve Henson, Bodo Moeller]
1005 *) Fix ASN.1 parsing of certain invalid structures that can result
1006 in a denial of service. (CVE-2006-2937) [Steve Henson]
1008 *) Fix buffer overflow in SSL_get_shared_ciphers() function.
1009 (CVE-2006-3738) [Tavis Ormandy and Will Drewry, Google Security Team]
1011 *) Fix SSL client code which could crash if connecting to a
1012 malicious SSLv2 server. (CVE-2006-4343)
1013 [Tavis Ormandy and Will Drewry, Google Security Team]
1015 *) Since 0.9.8b, ciphersuite strings naming explicit ciphersuites
1016 match only those. Before that, "AES256-SHA" would be interpreted
1017 as a pattern and match "AES128-SHA" too (since AES128-SHA got
1018 the same strength classification in 0.9.7h) as we currently only
1019 have a single AES bit in the ciphersuite description bitmap.
1020 That change, however, also applied to ciphersuite strings such as
1021 "RC4-MD5" that intentionally matched multiple ciphersuites --
1022 namely, SSL 2.0 ciphersuites in addition to the more common ones
1023 from SSL 3.0/TLS 1.0.
1025 So we change the selection algorithm again: Naming an explicit
1026 ciphersuite selects this one ciphersuite, and any other similar
1027 ciphersuite (same bitmap) from *other* protocol versions.
1028 Thus, "RC4-MD5" again will properly select both the SSL 2.0
1029 ciphersuite and the SSL 3.0/TLS 1.0 ciphersuite.
1031 Since SSL 2.0 does not have any ciphersuites for which the
1032 128/256 bit distinction would be relevant, this works for now.
1033 The proper fix will be to use different bits for AES128 and
1034 AES256, which would have avoided the problems from the beginning;
1035 however, bits are scarce, so we can only do this in a new release
1036 (not just a patchlevel) when we can change the SSL_CIPHER
1037 definition to split the single 'unsigned long mask' bitmap into
1038 multiple values to extend the available space.
1042 Changes between 0.9.8b and 0.9.8c [05 Sep 2006]
1044 *) Avoid PKCS #1 v1.5 signature attack discovered by Daniel Bleichenbacher
1045 (CVE-2006-4339) [Ben Laurie and Google Security Team]
1047 *) Add AES IGE and biIGE modes.
1050 *) Change the Unix randomness entropy gathering to use poll() when
1051 possible instead of select(), since the latter has some
1052 undesirable limitations.
1053 [Darryl Miles via Richard Levitte and Bodo Moeller]
1055 *) Disable "ECCdraft" ciphersuites more thoroughly. Now special
1056 treatment in ssl/ssl_ciph.s makes sure that these ciphersuites
1057 cannot be implicitly activated as part of, e.g., the "AES" alias.
1058 However, please upgrade to OpenSSL 0.9.9[-dev] for
1059 non-experimental use of the ECC ciphersuites to get TLS extension
1060 support, which is required for curve and point format negotiation
1061 to avoid potential handshake problems.
1064 *) Disable rogue ciphersuites:
1066 - SSLv2 0x08 0x00 0x80 ("RC4-64-MD5")
1067 - SSLv3/TLSv1 0x00 0x61 ("EXP1024-RC2-CBC-MD5")
1068 - SSLv3/TLSv1 0x00 0x60 ("EXP1024-RC4-MD5")
1070 The latter two were purportedly from
1071 draft-ietf-tls-56-bit-ciphersuites-0[01].txt, but do not really
1074 Also deactivate the remaining ciphersuites from
1075 draft-ietf-tls-56-bit-ciphersuites-01.txt. These are just as
1076 unofficial, and the ID has long expired.
1079 *) Fix RSA blinding Heisenbug (problems sometimes occured on
1080 dual-core machines) and other potential thread-safety issues.
1083 *) Add the symmetric cipher Camellia (128-bit, 192-bit, 256-bit key
1084 versions), which is now available for royalty-free use
1085 (see http://info.isl.ntt.co.jp/crypt/eng/info/chiteki.html).
1086 Also, add Camellia TLS ciphersuites from RFC 4132.
1088 To minimize changes between patchlevels in the OpenSSL 0.9.8
1089 series, Camellia remains excluded from compilation unless OpenSSL
1090 is configured with 'enable-camellia'.
1093 *) Disable the padding bug check when compression is in use. The padding
1094 bug check assumes the first packet is of even length, this is not
1095 necessarily true if compresssion is enabled and can result in false
1096 positives causing handshake failure. The actual bug test is ancient
1097 code so it is hoped that implementations will either have fixed it by
1098 now or any which still have the bug do not support compression.
1101 Changes between 0.9.8a and 0.9.8b [04 May 2006]
1103 *) When applying a cipher rule check to see if string match is an explicit
1104 cipher suite and only match that one cipher suite if it is.
1107 *) Link in manifests for VC++ if needed.
1108 [Austin Ziegler <halostatue@gmail.com>]
1110 *) Update support for ECC-based TLS ciphersuites according to
1111 draft-ietf-tls-ecc-12.txt with proposed changes (but without
1112 TLS extensions, which are supported starting with the 0.9.9
1113 branch, not in the OpenSSL 0.9.8 branch).
1116 *) New functions EVP_CIPHER_CTX_new() and EVP_CIPHER_CTX_free() to support
1117 opaque EVP_CIPHER_CTX handling.
1120 *) Fixes and enhancements to zlib compression code. We now only use
1121 "zlib1.dll" and use the default __cdecl calling convention on Win32
1122 to conform with the standards mentioned here:
1123 http://www.zlib.net/DLL_FAQ.txt
1124 Static zlib linking now works on Windows and the new --with-zlib-include
1125 --with-zlib-lib options to Configure can be used to supply the location
1126 of the headers and library. Gracefully handle case where zlib library
1130 *) Several fixes and enhancements to the OID generation code. The old code
1131 sometimes allowed invalid OIDs (1.X for X >= 40 for example), couldn't
1132 handle numbers larger than ULONG_MAX, truncated printing and had a
1133 non standard OBJ_obj2txt() behaviour.
1136 *) Add support for building of engines under engine/ as shared libraries
1137 under VC++ build system.
1140 *) Corrected the numerous bugs in the Win32 path splitter in DSO.
1141 Hopefully, we will not see any false combination of paths any more.
1144 Changes between 0.9.8 and 0.9.8a [11 Oct 2005]
1146 *) Remove the functionality of SSL_OP_MSIE_SSLV2_RSA_PADDING
1147 (part of SSL_OP_ALL). This option used to disable the
1148 countermeasure against man-in-the-middle protocol-version
1149 rollback in the SSL 2.0 server implementation, which is a bad
1150 idea. (CVE-2005-2969)
1152 [Bodo Moeller; problem pointed out by Yutaka Oiwa (Research Center
1153 for Information Security, National Institute of Advanced Industrial
1154 Science and Technology [AIST], Japan)]
1156 *) Add two function to clear and return the verify parameter flags.
1159 *) Keep cipherlists sorted in the source instead of sorting them at
1160 runtime, thus removing the need for a lock.
1163 *) Avoid some small subgroup attacks in Diffie-Hellman.
1164 [Nick Mathewson and Ben Laurie]
1166 *) Add functions for well-known primes.
1169 *) Extended Windows CE support.
1170 [Satoshi Nakamura and Andy Polyakov]
1172 *) Initialize SSL_METHOD structures at compile time instead of during
1173 runtime, thus removing the need for a lock.
1176 *) Make PKCS7_decrypt() work even if no certificate is supplied by
1177 attempting to decrypt each encrypted key in turn. Add support to
1181 Changes between 0.9.7h and 0.9.8 [05 Jul 2005]
1183 [NB: OpenSSL 0.9.7i and later 0.9.7 patch levels were released after
1186 *) Add libcrypto.pc and libssl.pc for those who feel they need them.
1189 *) Change CA.sh and CA.pl so they don't bundle the CSR and the private
1190 key into the same file any more.
1193 *) Add initial support for Win64, both IA64 and AMD64/x64 flavors.
1196 *) Add -utf8 command line and config file option to 'ca'.
1197 [Stefan <stf@udoma.org]
1199 *) Removed the macro des_crypt(), as it seems to conflict with some
1200 libraries. Use DES_crypt().
1203 *) Correct naming of the 'chil' and '4758cca' ENGINEs. This
1204 involves renaming the source and generated shared-libs for
1205 both. The engines will accept the corrected or legacy ids
1206 ('ncipher' and '4758_cca' respectively) when binding. NB,
1207 this only applies when building 'shared'.
1208 [Corinna Vinschen <vinschen@redhat.com> and Geoff Thorpe]
1210 *) Add attribute functions to EVP_PKEY structure. Modify
1211 PKCS12_create() to recognize a CSP name attribute and
1212 use it. Make -CSP option work again in pkcs12 utility.
1215 *) Add new functionality to the bn blinding code:
1216 - automatic re-creation of the BN_BLINDING parameters after
1217 a fixed number of uses (currently 32)
1218 - add new function for parameter creation
1219 - introduce flags to control the update behaviour of the
1220 BN_BLINDING parameters
1221 - hide BN_BLINDING structure
1222 Add a second BN_BLINDING slot to the RSA structure to improve
1223 performance when a single RSA object is shared among several
1227 *) Add support for DTLS.
1228 [Nagendra Modadugu <nagendra@cs.stanford.edu> and Ben Laurie]
1230 *) Add support for DER encoded private keys (SSL_FILETYPE_ASN1)
1231 to SSL_CTX_use_PrivateKey_file() and SSL_use_PrivateKey_file()
1234 *) Remove buggy and incompletet DH cert support from
1235 ssl/ssl_rsa.c and ssl/s3_both.c
1238 *) Use SHA-1 instead of MD5 as the default digest algorithm for
1239 the apps/openssl applications.
1242 *) Compile clean with "-Wall -Wmissing-prototypes
1243 -Wstrict-prototypes -Wmissing-declarations -Werror". Currently
1244 DEBUG_SAFESTACK must also be set.
1247 *) Change ./Configure so that certain algorithms can be disabled by default.
1248 The new counterpiece to "no-xxx" is "enable-xxx".
1250 The patented RC5 and MDC2 algorithms will now be disabled unless
1251 "enable-rc5" and "enable-mdc2", respectively, are specified.
1253 (IDEA remains enabled despite being patented. This is because IDEA
1254 is frequently required for interoperability, and there is no license
1255 fee for non-commercial use. As before, "no-idea" can be used to
1256 avoid this algorithm.)
1260 *) Add processing of proxy certificates (see RFC 3820). This work was
1261 sponsored by KTH (The Royal Institute of Technology in Stockholm) and
1262 EGEE (Enabling Grids for E-science in Europe).
1265 *) RC4 performance overhaul on modern architectures/implementations, such
1266 as Intel P4, IA-64 and AMD64.
1269 *) New utility extract-section.pl. This can be used specify an alternative
1270 section number in a pod file instead of having to treat each file as
1271 a separate case in Makefile. This can be done by adding two lines to the
1274 =for comment openssl_section:XXX
1276 The blank line is mandatory.
1280 *) New arguments -certform, -keyform and -pass for s_client and s_server
1281 to allow alternative format key and certificate files and passphrase
1285 *) New structure X509_VERIFY_PARAM which combines current verify parameters,
1286 update associated structures and add various utility functions.
1288 Add new policy related verify parameters, include policy checking in
1289 standard verify code. Enhance 'smime' application with extra parameters
1290 to support policy checking and print out.
1293 *) Add a new engine to support VIA PadLock ACE extensions in the VIA C3
1294 Nehemiah processors. These extensions support AES encryption in hardware
1295 as well as RNG (though RNG support is currently disabled).
1296 [Michal Ludvig <michal@logix.cz>, with help from Andy Polyakov]
1298 *) Deprecate BN_[get|set]_params() functions (they were ignored internally).
1301 *) New FIPS 180-2 algorithms, SHA-224/-256/-384/-512 are implemented.
1302 [Andy Polyakov and a number of other people]
1304 *) Improved PowerPC platform support. Most notably BIGNUM assembler
1305 implementation contributed by IBM.
1306 [Suresh Chari, Peter Waltenberg, Andy Polyakov]
1308 *) The new 'RSA_generate_key_ex' function now takes a BIGNUM for the public
1309 exponent rather than 'unsigned long'. There is a corresponding change to
1310 the new 'rsa_keygen' element of the RSA_METHOD structure.
1311 [Jelte Jansen, Geoff Thorpe]
1313 *) Functionality for creating the initial serial number file is now
1314 moved from CA.pl to the 'ca' utility with a new option -create_serial.
1316 (Before OpenSSL 0.9.7e, CA.pl used to initialize the serial
1317 number file to 1, which is bound to cause problems. To avoid
1318 the problems while respecting compatibility between different 0.9.7
1319 patchlevels, 0.9.7e employed 'openssl x509 -next_serial' in
1320 CA.pl for serial number initialization. With the new release 0.9.8,
1321 we can fix the problem directly in the 'ca' utility.)
1324 *) Reduced header interdepencies by declaring more opaque objects in
1325 ossl_typ.h. As a consequence, including some headers (eg. engine.h) will
1326 give fewer recursive includes, which could break lazy source code - so
1327 this change is covered by the OPENSSL_NO_DEPRECATED symbol. As always,
1328 developers should define this symbol when building and using openssl to
1329 ensure they track the recommended behaviour, interfaces, [etc], but
1330 backwards-compatible behaviour prevails when this isn't defined.
1333 *) New function X509_POLICY_NODE_print() which prints out policy nodes.
1336 *) Add new EVP function EVP_CIPHER_CTX_rand_key and associated functionality.
1337 This will generate a random key of the appropriate length based on the
1338 cipher context. The EVP_CIPHER can provide its own random key generation
1339 routine to support keys of a specific form. This is used in the des and
1340 3des routines to generate a key of the correct parity. Update S/MIME
1341 code to use new functions and hence generate correct parity DES keys.
1342 Add EVP_CHECK_DES_KEY #define to return an error if the key is not
1343 valid (weak or incorrect parity).
1346 *) Add a local set of CRLs that can be used by X509_verify_cert() as well
1347 as looking them up. This is useful when the verified structure may contain
1348 CRLs, for example PKCS#7 signedData. Modify PKCS7_verify() to use any CRLs
1349 present unless the new PKCS7_NO_CRL flag is asserted.
1352 *) Extend ASN1 oid configuration module. It now additionally accepts the
1355 shortName = some long name, 1.2.3.4
1358 *) Reimplemented the BN_CTX implementation. There is now no more static
1359 limitation on the number of variables it can handle nor the depth of the
1360 "stack" handling for BN_CTX_start()/BN_CTX_end() pairs. The stack
1361 information can now expand as required, and rather than having a single
1362 static array of bignums, BN_CTX now uses a linked-list of such arrays
1363 allowing it to expand on demand whilst maintaining the usefulness of
1364 BN_CTX's "bundling".
1367 *) Add a missing BN_CTX parameter to the 'rsa_mod_exp' callback in RSA_METHOD
1368 to allow all RSA operations to function using a single BN_CTX.
1371 *) Preliminary support for certificate policy evaluation and checking. This
1372 is initially intended to pass the tests outlined in "Conformance Testing
1373 of Relying Party Client Certificate Path Processing Logic" v1.07.
1376 *) bn_dup_expand() has been deprecated, it was introduced in 0.9.7 and
1377 remained unused and not that useful. A variety of other little bignum
1378 tweaks and fixes have also been made continuing on from the audit (see
1382 *) Constify all or almost all d2i, c2i, s2i and r2i functions, along with
1383 associated ASN1, EVP and SSL functions and old ASN1 macros.
1386 *) BN_zero() only needs to set 'top' and 'neg' to zero for correct results,
1387 and this should never fail. So the return value from the use of
1388 BN_set_word() (which can fail due to needless expansion) is now deprecated;
1389 if OPENSSL_NO_DEPRECATED is defined, BN_zero() is a void macro.
1392 *) BN_CTX_get() should return zero-valued bignums, providing the same
1393 initialised value as BN_new().
1394 [Geoff Thorpe, suggested by Ulf Möller]
1396 *) Support for inhibitAnyPolicy certificate extension.
1399 *) An audit of the BIGNUM code is underway, for which debugging code is
1400 enabled when BN_DEBUG is defined. This makes stricter enforcements on what
1401 is considered valid when processing BIGNUMs, and causes execution to
1402 assert() when a problem is discovered. If BN_DEBUG_RAND is defined,
1403 further steps are taken to deliberately pollute unused data in BIGNUM
1404 structures to try and expose faulty code further on. For now, openssl will
1405 (in its default mode of operation) continue to tolerate the inconsistent
1406 forms that it has tolerated in the past, but authors and packagers should
1407 consider trying openssl and their own applications when compiled with
1408 these debugging symbols defined. It will help highlight potential bugs in
1409 their own code, and will improve the test coverage for OpenSSL itself. At
1410 some point, these tighter rules will become openssl's default to improve
1411 maintainability, though the assert()s and other overheads will remain only
1412 in debugging configurations. See bn.h for more details.
1413 [Geoff Thorpe, Nils Larsch, Ulf Möller]
1415 *) BN_CTX_init() has been deprecated, as BN_CTX is an opaque structure
1416 that can only be obtained through BN_CTX_new() (which implicitly
1417 initialises it). The presence of this function only made it possible
1418 to overwrite an existing structure (and cause memory leaks).
1421 *) Because of the callback-based approach for implementing LHASH as a
1422 template type, lh_insert() adds opaque objects to hash-tables and
1423 lh_doall() or lh_doall_arg() are typically used with a destructor callback
1424 to clean up those corresponding objects before destroying the hash table
1425 (and losing the object pointers). So some over-zealous constifications in
1426 LHASH have been relaxed so that lh_insert() does not take (nor store) the
1427 objects as "const" and the lh_doall[_arg] callback wrappers are not
1428 prototyped to have "const" restrictions on the object pointers they are
1429 given (and so aren't required to cast them away any more).
1432 *) The tmdiff.h API was so ugly and minimal that our own timing utility
1433 (speed) prefers to use its own implementation. The two implementations
1434 haven't been consolidated as yet (volunteers?) but the tmdiff API has had
1435 its object type properly exposed (MS_TM) instead of casting to/from "char
1436 *". This may still change yet if someone realises MS_TM and "ms_time_***"
1437 aren't necessarily the greatest nomenclatures - but this is what was used
1438 internally to the implementation so I've used that for now.
1441 *) Ensure that deprecated functions do not get compiled when
1442 OPENSSL_NO_DEPRECATED is defined. Some "openssl" subcommands and a few of
1443 the self-tests were still using deprecated key-generation functions so
1444 these have been updated also.
1447 *) Reorganise PKCS#7 code to separate the digest location functionality
1448 into PKCS7_find_digest(), digest addtion into PKCS7_bio_add_digest().
1449 New function PKCS7_set_digest() to set the digest type for PKCS#7
1450 digestedData type. Add additional code to correctly generate the
1451 digestedData type and add support for this type in PKCS7 initialization
1455 *) New function PKCS7_set0_type_other() this initializes a PKCS7
1456 structure of type "other".
1459 *) Fix prime generation loop in crypto/bn/bn_prime.pl by making
1460 sure the loop does correctly stop and breaking ("division by zero")
1461 modulus operations are not performed. The (pre-generated) prime
1462 table crypto/bn/bn_prime.h was already correct, but it could not be
1463 re-generated on some platforms because of the "division by zero"
1464 situation in the script.
1465 [Ralf S. Engelschall]
1467 *) Update support for ECC-based TLS ciphersuites according to
1468 draft-ietf-tls-ecc-03.txt: the KDF1 key derivation function with
1469 SHA-1 now is only used for "small" curves (where the
1470 representation of a field element takes up to 24 bytes); for
1471 larger curves, the field element resulting from ECDH is directly
1472 used as premaster secret.
1473 [Douglas Stebila (Sun Microsystems Laboratories)]
1475 *) Add code for kP+lQ timings to crypto/ec/ectest.c, and add SEC2
1476 curve secp160r1 to the tests.
1477 [Douglas Stebila (Sun Microsystems Laboratories)]
1479 *) Add the possibility to load symbols globally with DSO.
1480 [Götz Babin-Ebell <babin-ebell@trustcenter.de> via Richard Levitte]
1482 *) Add the functions ERR_set_mark() and ERR_pop_to_mark() for better
1483 control of the error stack.
1486 *) Add support for STORE in ENGINE.
1489 *) Add the STORE type. The intention is to provide a common interface
1490 to certificate and key stores, be they simple file-based stores, or
1491 HSM-type store, or LDAP stores, or...
1492 NOTE: The code is currently UNTESTED and isn't really used anywhere.
1495 *) Add a generic structure called OPENSSL_ITEM. This can be used to
1496 pass a list of arguments to any function as well as provide a way
1497 for a function to pass data back to the caller.
1500 *) Add the functions BUF_strndup() and BUF_memdup(). BUF_strndup()
1501 works like BUF_strdup() but can be used to duplicate a portion of
1502 a string. The copy gets NUL-terminated. BUF_memdup() duplicates
1506 *) Add the function sk_find_ex() which works like sk_find(), but will
1507 return an index to an element even if an exact match couldn't be
1508 found. The index is guaranteed to point at the element where the
1509 searched-for key would be inserted to preserve sorting order.
1512 *) Add the function OBJ_bsearch_ex() which works like OBJ_bsearch() but
1513 takes an extra flags argument for optional functionality. Currently,
1514 the following flags are defined:
1516 OBJ_BSEARCH_VALUE_ON_NOMATCH
1517 This one gets OBJ_bsearch_ex() to return a pointer to the first
1518 element where the comparing function returns a negative or zero
1521 OBJ_BSEARCH_FIRST_VALUE_ON_MATCH
1522 This one gets OBJ_bsearch_ex() to return a pointer to the first
1523 element where the comparing function returns zero. This is useful
1524 if there are more than one element where the comparing function
1528 *) Make it possible to create self-signed certificates with 'openssl ca'
1529 in such a way that the self-signed certificate becomes part of the
1530 CA database and uses the same mechanisms for serial number generation
1531 as all other certificate signing. The new flag '-selfsign' enables
1532 this functionality. Adapt CA.sh and CA.pl.in.
1535 *) Add functionality to check the public key of a certificate request
1536 against a given private. This is useful to check that a certificate
1537 request can be signed by that key (self-signing).
1540 *) Make it possible to have multiple active certificates with the same
1541 subject in the CA index file. This is done only if the keyword
1542 'unique_subject' is set to 'no' in the main CA section (default
1543 if 'CA_default') of the configuration file. The value is saved
1544 with the database itself in a separate index attribute file,
1545 named like the index file with '.attr' appended to the name.
1548 *) Generate muti valued AVAs using '+' notation in config files for
1552 *) Support for nameConstraints certificate extension.
1555 *) Support for policyConstraints certificate extension.
1558 *) Support for policyMappings certificate extension.
1561 *) Make sure the default DSA_METHOD implementation only uses its
1562 dsa_mod_exp() and/or bn_mod_exp() handlers if they are non-NULL,
1563 and change its own handlers to be NULL so as to remove unnecessary
1564 indirection. This lets alternative implementations fallback to the
1565 default implementation more easily.
1568 *) Support for directoryName in GeneralName related extensions
1572 *) Make it possible to link applications using Makefile.shared.
1573 Make that possible even when linking against static libraries!
1576 *) Support for single pass processing for S/MIME signing. This now
1577 means that S/MIME signing can be done from a pipe, in addition
1578 cleartext signing (multipart/signed type) is effectively streaming
1579 and the signed data does not need to be all held in memory.
1581 This is done with a new flag PKCS7_STREAM. When this flag is set
1582 PKCS7_sign() only initializes the PKCS7 structure and the actual signing
1583 is done after the data is output (and digests calculated) in
1584 SMIME_write_PKCS7().
1587 *) Add full support for -rpath/-R, both in shared libraries and
1588 applications, at least on the platforms where it's known how
1592 *) In crypto/ec/ec_mult.c, implement fast point multiplication with
1593 precomputation, based on wNAF splitting: EC_GROUP_precompute_mult()
1594 will now compute a table of multiples of the generator that
1595 makes subsequent invocations of EC_POINTs_mul() or EC_POINT_mul()
1596 faster (notably in the case of a single point multiplication,
1597 scalar * generator).
1598 [Nils Larsch, Bodo Moeller]
1600 *) IPv6 support for certificate extensions. The various extensions
1601 which use the IP:a.b.c.d can now take IPv6 addresses using the
1602 formats of RFC1884 2.2 . IPv6 addresses are now also displayed
1606 *) Added an ENGINE that implements RSA by performing private key
1607 exponentiations with the GMP library. The conversions to and from
1608 GMP's mpz_t format aren't optimised nor are any montgomery forms
1609 cached, and on x86 it appears OpenSSL's own performance has caught up.
1610 However there are likely to be other architectures where GMP could
1611 provide a boost. This ENGINE is not built in by default, but it can be
1612 specified at Configure time and should be accompanied by the necessary
1613 linker additions, eg;
1614 ./config -DOPENSSL_USE_GMP -lgmp
1617 *) "openssl engine" will not display ENGINE/DSO load failure errors when
1618 testing availability of engines with "-t" - the old behaviour is
1619 produced by increasing the feature's verbosity with "-tt".
1622 *) ECDSA routines: under certain error conditions uninitialized BN objects
1623 could be freed. Solution: make sure initialization is performed early
1624 enough. (Reported and fix supplied by Nils Larsch <nla@trustcenter.de>
1628 *) Key-generation can now be implemented in RSA_METHOD, DSA_METHOD
1629 and DH_METHOD (eg. by ENGINE implementations) to override the normal
1630 software implementations. For DSA and DH, parameter generation can
1631 also be overriden by providing the appropriate method callbacks.
1634 *) Change the "progress" mechanism used in key-generation and
1635 primality testing to functions that take a new BN_GENCB pointer in
1636 place of callback/argument pairs. The new API functions have "_ex"
1637 postfixes and the older functions are reimplemented as wrappers for
1638 the new ones. The OPENSSL_NO_DEPRECATED symbol can be used to hide
1639 declarations of the old functions to help (graceful) attempts to
1640 migrate to the new functions. Also, the new key-generation API
1641 functions operate on a caller-supplied key-structure and return
1642 success/failure rather than returning a key or NULL - this is to
1643 help make "keygen" another member function of RSA_METHOD etc.
1645 Example for using the new callback interface:
1647 int (*my_callback)(int a, int b, BN_GENCB *cb) = ...;
1651 BN_GENCB_set(&my_cb, my_callback, my_arg);
1653 return BN_is_prime_ex(some_bignum, BN_prime_checks, NULL, &cb);
1654 /* For the meaning of a, b in calls to my_callback(), see the
1655 * documentation of the function that calls the callback.
1656 * cb will point to my_cb; my_arg can be retrieved as cb->arg.
1657 * my_callback should return 1 if it wants BN_is_prime_ex()
1658 * to continue, or 0 to stop.
1663 *) Change the ZLIB compression method to be stateful, and make it
1664 available to TLS with the number defined in
1665 draft-ietf-tls-compression-04.txt.
1668 *) Add the ASN.1 structures and functions for CertificatePair, which
1669 is defined as follows (according to X.509_4thEditionDraftV6.pdf):
1671 CertificatePair ::= SEQUENCE {
1672 forward [0] Certificate OPTIONAL,
1673 reverse [1] Certificate OPTIONAL,
1674 -- at least one of the pair shall be present -- }
1676 Also implement the PEM functions to read and write certificate
1677 pairs, and defined the PEM tag as "CERTIFICATE PAIR".
1679 This needed to be defined, mostly for the sake of the LDAP
1680 attribute crossCertificatePair, but may prove useful elsewhere as
1684 *) Make it possible to inhibit symlinking of shared libraries in
1685 Makefile.shared, for Cygwin's sake.
1688 *) Extend the BIGNUM API by creating a function
1689 void BN_set_negative(BIGNUM *a, int neg);
1690 and a macro that behave like
1691 int BN_is_negative(const BIGNUM *a);
1693 to avoid the need to access 'a->neg' directly in applications.
1696 *) Implement fast modular reduction for pseudo-Mersenne primes
1697 used in NIST curves (crypto/bn/bn_nist.c, crypto/ec/ecp_nist.c).
1698 EC_GROUP_new_curve_GFp() will now automatically use this
1700 [Nils Larsch <nla@trustcenter.de>]
1702 *) Add new lock type (CRYPTO_LOCK_BN).
1705 *) Change the ENGINE framework to automatically load engines
1706 dynamically from specific directories unless they could be
1707 found to already be built in or loaded. Move all the
1708 current engines except for the cryptodev one to a new
1710 The engines in engines/ are built as shared libraries if
1711 the "shared" options was given to ./Configure or ./config.
1712 Otherwise, they are inserted in libcrypto.a.
1713 /usr/local/ssl/engines is the default directory for dynamic
1714 engines, but that can be overriden at configure time through
1715 the usual use of --prefix and/or --openssldir, and at run
1716 time with the environment variable OPENSSL_ENGINES.
1717 [Geoff Thorpe and Richard Levitte]
1719 *) Add Makefile.shared, a helper makefile to build shared
1720 libraries. Addapt Makefile.org.
1723 *) Add version info to Win32 DLLs.
1724 [Peter 'Luna' Runestig" <peter@runestig.com>]
1726 *) Add new 'medium level' PKCS#12 API. Certificates and keys
1727 can be added using this API to created arbitrary PKCS#12
1728 files while avoiding the low level API.
1730 New options to PKCS12_create(), key or cert can be NULL and
1731 will then be omitted from the output file. The encryption
1732 algorithm NIDs can be set to -1 for no encryption, the mac
1733 iteration count can be set to 0 to omit the mac.
1735 Enhance pkcs12 utility by making the -nokeys and -nocerts
1736 options work when creating a PKCS#12 file. New option -nomac
1737 to omit the mac, NONE can be set for an encryption algorithm.
1738 New code is modified to use the enhanced PKCS12_create()
1739 instead of the low level API.
1742 *) Extend ASN1 encoder to support indefinite length constructed
1743 encoding. This can output sequences tags and octet strings in
1744 this form. Modify pk7_asn1.c to support indefinite length
1745 encoding. This is experimental and needs additional code to
1746 be useful, such as an ASN1 bio and some enhanced streaming
1749 Extend template encode functionality so that tagging is passed
1750 down to the template encoder.
1753 *) Let 'openssl req' fail if an argument to '-newkey' is not
1754 recognized instead of using RSA as a default.
1757 *) Add support for ECC-based ciphersuites from draft-ietf-tls-ecc-01.txt.
1758 As these are not official, they are not included in "ALL";
1759 the "ECCdraft" ciphersuite group alias can be used to select them.
1760 [Vipul Gupta and Sumit Gupta (Sun Microsystems Laboratories)]
1762 *) Add ECDH engine support.
1763 [Nils Gura and Douglas Stebila (Sun Microsystems Laboratories)]
1765 *) Add ECDH in new directory crypto/ecdh/.
1766 [Douglas Stebila (Sun Microsystems Laboratories)]
1768 *) Let BN_rand_range() abort with an error after 100 iterations
1769 without success (which indicates a broken PRNG).
1772 *) Change BN_mod_sqrt() so that it verifies that the input value
1773 is really the square of the return value. (Previously,
1774 BN_mod_sqrt would show GIGO behaviour.)
1777 *) Add named elliptic curves over binary fields from X9.62, SECG,
1778 and WAP/WTLS; add OIDs that were still missing.
1780 [Sheueling Chang Shantz and Douglas Stebila
1781 (Sun Microsystems Laboratories)]
1783 *) Extend the EC library for elliptic curves over binary fields
1784 (new files ec2_smpl.c, ec2_smpt.c, ec2_mult.c in crypto/ec/).
1787 EC_GF2m_simple_method
1791 EC_GROUP_new_curve_GF2m
1792 EC_GROUP_set_curve_GF2m
1793 EC_GROUP_get_curve_GF2m
1794 EC_POINT_set_affine_coordinates_GF2m
1795 EC_POINT_get_affine_coordinates_GF2m
1796 EC_POINT_set_compressed_coordinates_GF2m
1798 Point compression for binary fields is disabled by default for
1799 patent reasons (compile with OPENSSL_EC_BIN_PT_COMP defined to
1802 As binary polynomials are represented as BIGNUMs, various members
1803 of the EC_GROUP and EC_POINT data structures can be shared
1804 between the implementations for prime fields and binary fields;
1805 the above ..._GF2m functions (except for EX_GROUP_new_curve_GF2m)
1806 are essentially identical to their ..._GFp counterparts.
1807 (For simplicity, the '..._GFp' prefix has been dropped from
1808 various internal method names.)
1810 An internal 'field_div' method (similar to 'field_mul' and
1811 'field_sqr') has been added; this is used only for binary fields.
1813 [Sheueling Chang Shantz and Douglas Stebila
1814 (Sun Microsystems Laboratories)]
1816 *) Optionally dispatch EC_POINT_mul(), EC_POINT_precompute_mult()
1817 through methods ('mul', 'precompute_mult').
1819 The generic implementations (now internally called 'ec_wNAF_mul'
1820 and 'ec_wNAF_precomputed_mult') remain the default if these
1821 methods are undefined.
1823 [Sheueling Chang Shantz and Douglas Stebila
1824 (Sun Microsystems Laboratories)]
1826 *) New function EC_GROUP_get_degree, which is defined through
1827 EC_METHOD. For curves over prime fields, this returns the bit
1828 length of the modulus.
1830 [Sheueling Chang Shantz and Douglas Stebila
1831 (Sun Microsystems Laboratories)]
1833 *) New functions EC_GROUP_dup, EC_POINT_dup.
1834 (These simply call ..._new and ..._copy).
1836 [Sheueling Chang Shantz and Douglas Stebila
1837 (Sun Microsystems Laboratories)]
1839 *) Add binary polynomial arithmetic software in crypto/bn/bn_gf2m.c.
1840 Polynomials are represented as BIGNUMs (where the sign bit is not
1841 used) in the following functions [macros]:
1844 BN_GF2m_sub [= BN_GF2m_add]
1845 BN_GF2m_mod [wrapper for BN_GF2m_mod_arr]
1846 BN_GF2m_mod_mul [wrapper for BN_GF2m_mod_mul_arr]
1847 BN_GF2m_mod_sqr [wrapper for BN_GF2m_mod_sqr_arr]
1849 BN_GF2m_mod_exp [wrapper for BN_GF2m_mod_exp_arr]
1850 BN_GF2m_mod_sqrt [wrapper for BN_GF2m_mod_sqrt_arr]
1851 BN_GF2m_mod_solve_quad [wrapper for BN_GF2m_mod_solve_quad_arr]
1852 BN_GF2m_cmp [= BN_ucmp]
1854 (Note that only the 'mod' functions are actually for fields GF(2^m).
1855 BN_GF2m_add() is misnomer, but this is for the sake of consistency.)
1857 For some functions, an the irreducible polynomial defining a
1858 field can be given as an 'unsigned int[]' with strictly
1859 decreasing elements giving the indices of those bits that are set;
1860 i.e., p[] represents the polynomial
1861 f(t) = t^p[0] + t^p[1] + ... + t^p[k]
1863 p[0] > p[1] > ... > p[k] = 0.
1864 This applies to the following functions:
1869 BN_GF2m_mod_inv_arr [wrapper for BN_GF2m_mod_inv]
1870 BN_GF2m_mod_div_arr [wrapper for BN_GF2m_mod_div]
1872 BN_GF2m_mod_sqrt_arr
1873 BN_GF2m_mod_solve_quad_arr
1877 Conversion can be performed by the following functions:
1882 bntest.c has additional tests for binary polynomial arithmetic.
1884 Two implementations for BN_GF2m_mod_div() are available.
1885 The default algorithm simply uses BN_GF2m_mod_inv() and
1886 BN_GF2m_mod_mul(). The alternative algorithm is compiled in only
1887 if OPENSSL_SUN_GF2M_DIV is defined (patent pending; read the
1888 copyright notice in crypto/bn/bn_gf2m.c before enabling it).
1890 [Sheueling Chang Shantz and Douglas Stebila
1891 (Sun Microsystems Laboratories)]
1893 *) Add new error code 'ERR_R_DISABLED' that can be used when some
1894 functionality is disabled at compile-time.
1895 [Douglas Stebila <douglas.stebila@sun.com>]
1897 *) Change default behaviour of 'openssl asn1parse' so that more
1898 information is visible when viewing, e.g., a certificate:
1900 Modify asn1_parse2 (crypto/asn1/asn1_par.c) so that in non-'dump'
1901 mode the content of non-printable OCTET STRINGs is output in a
1902 style similar to INTEGERs, but with '[HEX DUMP]' prepended to
1903 avoid the appearance of a printable string.
1904 [Nils Larsch <nla@trustcenter.de>]
1906 *) Add 'asn1_flag' and 'asn1_form' member to EC_GROUP with access
1908 EC_GROUP_set_asn1_flag()
1909 EC_GROUP_get_asn1_flag()
1910 EC_GROUP_set_point_conversion_form()
1911 EC_GROUP_get_point_conversion_form()
1912 These control ASN1 encoding details:
1913 - Curves (i.e., groups) are encoded explicitly unless asn1_flag
1914 has been set to OPENSSL_EC_NAMED_CURVE.
1915 - Points are encoded in uncompressed form by default; options for
1916 asn1_for are as for point2oct, namely
1917 POINT_CONVERSION_COMPRESSED
1918 POINT_CONVERSION_UNCOMPRESSED
1919 POINT_CONVERSION_HYBRID
1921 Also add 'seed' and 'seed_len' members to EC_GROUP with access
1924 EC_GROUP_get0_seed()
1925 EC_GROUP_get_seed_len()
1926 This is used only for ASN1 purposes (so far).
1927 [Nils Larsch <nla@trustcenter.de>]
1929 *) Add 'field_type' member to EC_METHOD, which holds the NID
1930 of the appropriate field type OID. The new function
1931 EC_METHOD_get_field_type() returns this value.
1932 [Nils Larsch <nla@trustcenter.de>]
1937 EC_POINT_point2hex()
1938 EC_POINT_hex2point()
1939 providing useful interfaces to EC_POINT_point2oct() and
1940 EC_POINT_oct2point().
1941 [Nils Larsch <nla@trustcenter.de>]
1943 *) Change internals of the EC library so that the functions
1944 EC_GROUP_set_generator()
1945 EC_GROUP_get_generator()
1946 EC_GROUP_get_order()
1947 EC_GROUP_get_cofactor()
1948 are implemented directly in crypto/ec/ec_lib.c and not dispatched
1949 to methods, which would lead to unnecessary code duplication when
1950 adding different types of curves.
1951 [Nils Larsch <nla@trustcenter.de> with input by Bodo Moeller]
1953 *) Implement compute_wNAF (crypto/ec/ec_mult.c) without BIGNUM
1954 arithmetic, and such that modified wNAFs are generated
1955 (which avoid length expansion in many cases).
1958 *) Add a function EC_GROUP_check_discriminant() (defined via
1959 EC_METHOD) that verifies that the curve discriminant is non-zero.
1961 Add a function EC_GROUP_check() that makes some sanity tests
1962 on a EC_GROUP, its generator and order. This includes
1963 EC_GROUP_check_discriminant().
1964 [Nils Larsch <nla@trustcenter.de>]
1966 *) Add ECDSA in new directory crypto/ecdsa/.
1968 Add applications 'openssl ecparam' and 'openssl ecdsa'
1969 (these are based on 'openssl dsaparam' and 'openssl dsa').
1971 ECDSA support is also included in various other files across the
1972 library. Most notably,
1973 - 'openssl req' now has a '-newkey ecdsa:file' option;
1974 - EVP_PKCS82PKEY (crypto/evp/evp_pkey.c) now can handle ECDSA;
1975 - X509_PUBKEY_get (crypto/asn1/x_pubkey.c) and
1976 d2i_PublicKey (crypto/asn1/d2i_pu.c) have been modified to make
1977 them suitable for ECDSA where domain parameters must be
1978 extracted before the specific public key;
1979 - ECDSA engine support has been added.
1980 [Nils Larsch <nla@trustcenter.de>]
1982 *) Include some named elliptic curves, and add OIDs from X9.62,
1983 SECG, and WAP/WTLS. Each curve can be obtained from the new
1985 EC_GROUP_new_by_curve_name(),
1986 and the list of available named curves can be obtained with
1987 EC_get_builtin_curves().
1988 Also add a 'curve_name' member to EC_GROUP objects, which can be
1990 EC_GROUP_set_curve_name()
1991 EC_GROUP_get_curve_name()
1992 [Nils Larsch <larsch@trustcenter.de, Bodo Moeller]
1994 *) Remove a few calls to bn_wexpand() in BN_sqr() (the one in there
1995 was actually never needed) and in BN_mul(). The removal in BN_mul()
1996 required a small change in bn_mul_part_recursive() and the addition
1997 of the functions bn_cmp_part_words(), bn_sub_part_words() and
1998 bn_add_part_words(), which do the same thing as bn_cmp_words(),
1999 bn_sub_words() and bn_add_words() except they take arrays with
2003 Changes between 0.9.7m and 0.9.7n [xx XXX xxxx]
2005 *) In the SSL/TLS server implementation, be strict about session ID
2006 context matching (which matters if an application uses a single
2007 external cache for different purposes). Previously,
2008 out-of-context reuse was forbidden only if SSL_VERIFY_PEER was
2009 set. This did ensure strict client verification, but meant that,
2010 with applications using a single external cache for quite
2011 different requirements, clients could circumvent ciphersuite
2012 restrictions for a given session ID context by starting a session
2013 in a different context.
2016 Changes between 0.9.7l and 0.9.7m [23 Feb 2007]
2018 *) Cleanse PEM buffers before freeing them since they may contain
2020 [Benjamin Bennett <ben@psc.edu>]
2022 *) Include "!eNULL" in SSL_DEFAULT_CIPHER_LIST to make sure that
2023 a ciphersuite string such as "DEFAULT:RSA" cannot enable
2024 authentication-only ciphersuites.
2027 *) Since AES128 and AES256 share a single mask bit in the logic of
2028 ssl/ssl_ciph.c, the code for masking out disabled ciphers needs a
2029 kludge to work properly if AES128 is available and AES256 isn't.
2032 *) Expand security boundary to match 1.1.1 module.
2035 *) Remove redundant features: hash file source, editing of test vectors
2036 modify fipsld to use external fips_premain.c signature.
2039 *) New perl script mkfipsscr.pl to create shell scripts or batch files to
2040 run algorithm test programs.
2043 *) Make algorithm test programs more tolerant of whitespace.
2046 *) Have SSL/TLS server implementation tolerate "mismatched" record
2047 protocol version while receiving ClientHello even if the
2048 ClientHello is fragmented. (The server can't insist on the
2049 particular protocol version it has chosen before the ServerHello
2050 message has informed the client about his choice.)
2053 *) Load error codes if they are not already present instead of using a
2054 static variable. This allows them to be cleanly unloaded and reloaded.
2057 Changes between 0.9.7k and 0.9.7l [28 Sep 2006]
2059 *) Introduce limits to prevent malicious keys being able to
2060 cause a denial of service. (CVE-2006-2940)
2061 [Steve Henson, Bodo Moeller]
2063 *) Fix ASN.1 parsing of certain invalid structures that can result
2064 in a denial of service. (CVE-2006-2937) [Steve Henson]
2066 *) Fix buffer overflow in SSL_get_shared_ciphers() function.
2067 (CVE-2006-3738) [Tavis Ormandy and Will Drewry, Google Security Team]
2069 *) Fix SSL client code which could crash if connecting to a
2070 malicious SSLv2 server. (CVE-2006-4343)
2071 [Tavis Ormandy and Will Drewry, Google Security Team]
2073 *) Change ciphersuite string processing so that an explicit
2074 ciphersuite selects this one ciphersuite (so that "AES256-SHA"
2075 will no longer include "AES128-SHA"), and any other similar
2076 ciphersuite (same bitmap) from *other* protocol versions (so that
2077 "RC4-MD5" will still include both the SSL 2.0 ciphersuite and the
2078 SSL 3.0/TLS 1.0 ciphersuite). This is a backport combining
2079 changes from 0.9.8b and 0.9.8d.
2082 Changes between 0.9.7j and 0.9.7k [05 Sep 2006]
2084 *) Avoid PKCS #1 v1.5 signature attack discovered by Daniel Bleichenbacher
2085 (CVE-2006-4339) [Ben Laurie and Google Security Team]
2087 *) Change the Unix randomness entropy gathering to use poll() when
2088 possible instead of select(), since the latter has some
2089 undesirable limitations.
2090 [Darryl Miles via Richard Levitte and Bodo Moeller]
2092 *) Disable rogue ciphersuites:
2094 - SSLv2 0x08 0x00 0x80 ("RC4-64-MD5")
2095 - SSLv3/TLSv1 0x00 0x61 ("EXP1024-RC2-CBC-MD5")
2096 - SSLv3/TLSv1 0x00 0x60 ("EXP1024-RC4-MD5")
2098 The latter two were purportedly from
2099 draft-ietf-tls-56-bit-ciphersuites-0[01].txt, but do not really
2102 Also deactive the remaining ciphersuites from
2103 draft-ietf-tls-56-bit-ciphersuites-01.txt. These are just as
2104 unofficial, and the ID has long expired.
2107 *) Fix RSA blinding Heisenbug (problems sometimes occured on
2108 dual-core machines) and other potential thread-safety issues.
2111 Changes between 0.9.7i and 0.9.7j [04 May 2006]
2113 *) Adapt fipsld and the build system to link against the validated FIPS
2114 module in FIPS mode.
2117 *) Fixes for VC++ 2005 build under Windows.
2120 *) Add new Windows build target VC-32-GMAKE for VC++. This uses GNU make
2121 from a Windows bash shell such as MSYS. It is autodetected from the
2122 "config" script when run from a VC++ environment. Modify standard VC++
2123 build to use fipscanister.o from the GNU make build.
2126 Changes between 0.9.7h and 0.9.7i [14 Oct 2005]
2128 *) Wrapped the definition of EVP_MAX_MD_SIZE in a #ifdef OPENSSL_FIPS.
2129 The value now differs depending on if you build for FIPS or not.
2130 BEWARE! A program linked with a shared FIPSed libcrypto can't be
2131 safely run with a non-FIPSed libcrypto, as it may crash because of
2132 the difference induced by this change.
2135 Changes between 0.9.7g and 0.9.7h [11 Oct 2005]
2137 *) Remove the functionality of SSL_OP_MSIE_SSLV2_RSA_PADDING
2138 (part of SSL_OP_ALL). This option used to disable the
2139 countermeasure against man-in-the-middle protocol-version
2140 rollback in the SSL 2.0 server implementation, which is a bad
2141 idea. (CVE-2005-2969)
2143 [Bodo Moeller; problem pointed out by Yutaka Oiwa (Research Center
2144 for Information Security, National Institute of Advanced Industrial
2145 Science and Technology [AIST], Japan)]
2147 *) Minimal support for X9.31 signatures and PSS padding modes. This is
2148 mainly for FIPS compliance and not fully integrated at this stage.
2151 *) For DSA signing, unless DSA_FLAG_NO_EXP_CONSTTIME is set, perform
2152 the exponentiation using a fixed-length exponent. (Otherwise,
2153 the information leaked through timing could expose the secret key
2154 after many signatures; cf. Bleichenbacher's attack on DSA with
2158 *) Make a new fixed-window mod_exp implementation the default for
2159 RSA, DSA, and DH private-key operations so that the sequence of
2160 squares and multiplies and the memory access pattern are
2161 independent of the particular secret key. This will mitigate
2162 cache-timing and potential related attacks.
2164 BN_mod_exp_mont_consttime() is the new exponentiation implementation,
2165 and this is automatically used by BN_mod_exp_mont() if the new flag
2166 BN_FLG_EXP_CONSTTIME is set for the exponent. RSA, DSA, and DH
2167 will use this BN flag for private exponents unless the flag
2168 RSA_FLAG_NO_EXP_CONSTTIME, DSA_FLAG_NO_EXP_CONSTTIME, or
2169 DH_FLAG_NO_EXP_CONSTTIME, respectively, is set.
2171 [Matthew D Wood (Intel Corp), with some changes by Bodo Moeller]
2173 *) Change the client implementation for SSLv23_method() and
2174 SSLv23_client_method() so that is uses the SSL 3.0/TLS 1.0
2175 Client Hello message format if the SSL_OP_NO_SSLv2 option is set.
2176 (Previously, the SSL 2.0 backwards compatible Client Hello
2177 message format would be used even with SSL_OP_NO_SSLv2.)
2180 *) Add support for smime-type MIME parameter in S/MIME messages which some
2184 *) New function BN_MONT_CTX_set_locked() to set montgomery parameters in
2185 a threadsafe manner. Modify rsa code to use new function and add calls
2186 to dsa and dh code (which had race conditions before).
2189 *) Include the fixed error library code in the C error file definitions
2190 instead of fixing them up at runtime. This keeps the error code
2191 structures constant.
2194 Changes between 0.9.7f and 0.9.7g [11 Apr 2005]
2196 [NB: OpenSSL 0.9.7h and later 0.9.7 patch levels were released after
2199 *) Fixes for newer kerberos headers. NB: the casts are needed because
2200 the 'length' field is signed on one version and unsigned on another
2201 with no (?) obvious way to tell the difference, without these VC++
2202 complains. Also the "definition" of FAR (blank) is no longer included
2203 nor is the error ENOMEM. KRB5_PRIVATE has to be set to 1 to pick up
2204 some needed definitions.
2207 *) Undo Cygwin change.
2210 *) Added support for proxy certificates according to RFC 3820.
2211 Because they may be a security thread to unaware applications,
2212 they must be explicitely allowed in run-time. See
2213 docs/HOWTO/proxy_certificates.txt for further information.
2216 Changes between 0.9.7e and 0.9.7f [22 Mar 2005]
2218 *) Use (SSL_RANDOM_VALUE - 4) bytes of pseudo random data when generating
2219 server and client random values. Previously
2220 (SSL_RANDOM_VALUE - sizeof(time_t)) would be used which would result in
2221 less random data when sizeof(time_t) > 4 (some 64 bit platforms).
2223 This change has negligible security impact because:
2225 1. Server and client random values still have 24 bytes of pseudo random
2228 2. Server and client random values are sent in the clear in the initial
2231 3. The master secret is derived using the premaster secret (48 bytes in
2232 size for static RSA ciphersuites) as well as client server and random
2235 The OpenSSL team would like to thank the UK NISCC for bringing this issue
2238 [Stephen Henson, reported by UK NISCC]
2240 *) Use Windows randomness collection on Cygwin.
2243 *) Fix hang in EGD/PRNGD query when communication socket is closed
2244 prematurely by EGD/PRNGD.
2245 [Darren Tucker <dtucker@zip.com.au> via Lutz Jänicke, resolves #1014]
2247 *) Prompt for pass phrases when appropriate for PKCS12 input format.
2250 *) Back-port of selected performance improvements from development
2251 branch, as well as improved support for PowerPC platforms.
2254 *) Add lots of checks for memory allocation failure, error codes to indicate
2255 failure and freeing up memory if a failure occurs.
2256 [Nauticus Networks SSL Team <openssl@nauticusnet.com>, Steve Henson]
2258 *) Add new -passin argument to dgst.
2261 *) Perform some character comparisons of different types in X509_NAME_cmp:
2262 this is needed for some certificates that reencode DNs into UTF8Strings
2263 (in violation of RFC3280) and can't or wont issue name rollover
2267 *) Make an explicit check during certificate validation to see that
2268 the CA setting in each certificate on the chain is correct. As a
2269 side effect always do the following basic checks on extensions,
2270 not just when there's an associated purpose to the check:
2272 - if there is an unhandled critical extension (unless the user
2273 has chosen to ignore this fault)
2274 - if the path length has been exceeded (if one is set at all)
2275 - that certain extensions fit the associated purpose (if one has
2279 Changes between 0.9.7d and 0.9.7e [25 Oct 2004]
2281 *) Avoid a race condition when CRLs are checked in a multi threaded
2282 environment. This would happen due to the reordering of the revoked
2283 entries during signature checking and serial number lookup. Now the
2284 encoding is cached and the serial number sort performed under a lock.
2285 Add new STACK function sk_is_sorted().
2288 *) Add Delta CRL to the extension code.
2291 *) Various fixes to s3_pkt.c so alerts are sent properly.
2292 [David Holmes <d.holmes@f5.com>]
2294 *) Reduce the chances of duplicate issuer name and serial numbers (in
2295 violation of RFC3280) using the OpenSSL certificate creation utilities.
2296 This is done by creating a random 64 bit value for the initial serial
2297 number when a serial number file is created or when a self signed
2298 certificate is created using 'openssl req -x509'. The initial serial
2299 number file is created using 'openssl x509 -next_serial' in CA.pl
2300 rather than being initialized to 1.
2303 Changes between 0.9.7c and 0.9.7d [17 Mar 2004]
2305 *) Fix null-pointer assignment in do_change_cipher_spec() revealed
2306 by using the Codenomicon TLS Test Tool (CVE-2004-0079)
2307 [Joe Orton, Steve Henson]
2309 *) Fix flaw in SSL/TLS handshaking when using Kerberos ciphersuites
2311 [Joe Orton, Steve Henson]
2313 *) Make it possible to have multiple active certificates with the same
2314 subject in the CA index file. This is done only if the keyword
2315 'unique_subject' is set to 'no' in the main CA section (default
2316 if 'CA_default') of the configuration file. The value is saved
2317 with the database itself in a separate index attribute file,
2318 named like the index file with '.attr' appended to the name.
2321 *) X509 verify fixes. Disable broken certificate workarounds when
2322 X509_V_FLAGS_X509_STRICT is set. Check CRL issuer has cRLSign set if
2323 keyUsage extension present. Don't accept CRLs with unhandled critical
2324 extensions: since verify currently doesn't process CRL extensions this
2325 rejects a CRL with *any* critical extensions. Add new verify error codes
2329 *) When creating an OCSP nonce use an OCTET STRING inside the extnValue.
2330 A clarification of RFC2560 will require the use of OCTET STRINGs and
2331 some implementations cannot handle the current raw format. Since OpenSSL
2332 copies and compares OCSP nonces as opaque blobs without any attempt at
2333 parsing them this should not create any compatibility issues.
2336 *) New md flag EVP_MD_CTX_FLAG_REUSE this allows md_data to be reused when
2337 calling EVP_MD_CTX_copy_ex() to avoid calling OPENSSL_malloc(). Without
2338 this HMAC (and other) operations are several times slower than OpenSSL
2342 *) Print out GeneralizedTime and UTCTime in ASN1_STRING_print_ex().
2343 [Peter Sylvester <Peter.Sylvester@EdelWeb.fr>]
2345 *) Use the correct content when signing type "other".
2348 Changes between 0.9.7b and 0.9.7c [30 Sep 2003]
2350 *) Fix various bugs revealed by running the NISCC test suite:
2352 Stop out of bounds reads in the ASN1 code when presented with
2353 invalid tags (CVE-2003-0543 and CVE-2003-0544).
2355 Free up ASN1_TYPE correctly if ANY type is invalid (CVE-2003-0545).
2357 If verify callback ignores invalid public key errors don't try to check
2358 certificate signature with the NULL public key.
2362 *) New -ignore_err option in ocsp application to stop the server
2363 exiting on the first error in a request.
2366 *) In ssl3_accept() (ssl/s3_srvr.c) only accept a client certificate
2367 if the server requested one: as stated in TLS 1.0 and SSL 3.0
2371 *) In ssl3_get_client_hello() (ssl/s3_srvr.c), tolerate additional
2372 extra data after the compression methods not only for TLS 1.0
2373 but also for SSL 3.0 (as required by the specification).
2374 [Bodo Moeller; problem pointed out by Matthias Loepfe]
2376 *) Change X509_certificate_type() to mark the key as exported/exportable
2377 when it's 512 *bits* long, not 512 bytes.
2380 *) Change AES_cbc_encrypt() so it outputs exact multiple of
2381 blocks during encryption.
2384 *) Various fixes to base64 BIO and non blocking I/O. On write
2385 flushes were not handled properly if the BIO retried. On read
2386 data was not being buffered properly and had various logic bugs.
2387 This also affects blocking I/O when the data being decoded is a
2391 *) Various S/MIME bugfixes and compatibility changes:
2392 output correct application/pkcs7 MIME type if
2393 PKCS7_NOOLDMIMETYPE is set. Tolerate some broken signatures.
2394 Output CR+LF for EOL if PKCS7_CRLFEOL is set (this makes opening
2395 of files as .eml work). Correctly handle very long lines in MIME
2399 Changes between 0.9.7a and 0.9.7b [10 Apr 2003]
2401 *) Countermeasure against the Klima-Pokorny-Rosa extension of
2402 Bleichbacher's attack on PKCS #1 v1.5 padding: treat
2403 a protocol version number mismatch like a decryption error
2404 in ssl3_get_client_key_exchange (ssl/s3_srvr.c).
2407 *) Turn on RSA blinding by default in the default implementation
2408 to avoid a timing attack. Applications that don't want it can call
2409 RSA_blinding_off() or use the new flag RSA_FLAG_NO_BLINDING.
2410 They would be ill-advised to do so in most cases.
2411 [Ben Laurie, Steve Henson, Geoff Thorpe, Bodo Moeller]
2413 *) Change RSA blinding code so that it works when the PRNG is not
2414 seeded (in this case, the secret RSA exponent is abused as
2415 an unpredictable seed -- if it is not unpredictable, there
2416 is no point in blinding anyway). Make RSA blinding thread-safe
2417 by remembering the creator's thread ID in rsa->blinding and
2418 having all other threads use local one-time blinding factors
2419 (this requires more computation than sharing rsa->blinding, but
2420 avoids excessive locking; and if an RSA object is not shared
2421 between threads, blinding will still be very fast).
2424 *) Fixed a typo bug that would cause ENGINE_set_default() to set an
2425 ENGINE as defaults for all supported algorithms irrespective of
2426 the 'flags' parameter. 'flags' is now honoured, so applications
2427 should make sure they are passing it correctly.
2430 *) Target "mingw" now allows native Windows code to be generated in
2431 the Cygwin environment as well as with the MinGW compiler.
2434 Changes between 0.9.7 and 0.9.7a [19 Feb 2003]
2436 *) In ssl3_get_record (ssl/s3_pkt.c), minimize information leaked
2437 via timing by performing a MAC computation even if incorrrect
2438 block cipher padding has been found. This is a countermeasure
2439 against active attacks where the attacker has to distinguish
2440 between bad padding and a MAC verification error. (CVE-2003-0078)
2442 [Bodo Moeller; problem pointed out by Brice Canvel (EPFL),
2443 Alain Hiltgen (UBS), Serge Vaudenay (EPFL), and
2444 Martin Vuagnoux (EPFL, Ilion)]
2446 *) Make the no-err option work as intended. The intention with no-err
2447 is not to have the whole error stack handling routines removed from
2448 libcrypto, it's only intended to remove all the function name and
2449 reason texts, thereby removing some of the footprint that may not
2450 be interesting if those errors aren't displayed anyway.
2452 NOTE: it's still possible for any application or module to have it's
2453 own set of error texts inserted. The routines are there, just not
2454 used by default when no-err is given.
2457 *) Add support for FreeBSD on IA64.
2458 [dirk.meyer@dinoex.sub.org via Richard Levitte, resolves #454]
2460 *) Adjust DES_cbc_cksum() so it returns the same value as the MIT
2461 Kerberos function mit_des_cbc_cksum(). Before this change,
2462 the value returned by DES_cbc_cksum() was like the one from
2463 mit_des_cbc_cksum(), except the bytes were swapped.
2464 [Kevin Greaney <Kevin.Greaney@hp.com> and Richard Levitte]
2466 *) Allow an application to disable the automatic SSL chain building.
2467 Before this a rather primitive chain build was always performed in
2468 ssl3_output_cert_chain(): an application had no way to send the
2469 correct chain if the automatic operation produced an incorrect result.
2471 Now the chain builder is disabled if either:
2473 1. Extra certificates are added via SSL_CTX_add_extra_chain_cert().
2475 2. The mode flag SSL_MODE_NO_AUTO_CHAIN is set.
2477 The reasoning behind this is that an application would not want the
2478 auto chain building to take place if extra chain certificates are
2479 present and it might also want a means of sending no additional
2480 certificates (for example the chain has two certificates and the
2484 *) Add the possibility to build without the ENGINE framework.
2485 [Steven Reddie <smr@essemer.com.au> via Richard Levitte]
2487 *) Under Win32 gmtime() can return NULL: check return value in
2488 OPENSSL_gmtime(). Add error code for case where gmtime() fails.
2491 *) DSA routines: under certain error conditions uninitialized BN objects
2492 could be freed. Solution: make sure initialization is performed early
2493 enough. (Reported and fix supplied by Ivan D Nestlerode <nestler@MIT.EDU>,
2494 Nils Larsch <nla@trustcenter.de> via PR#459)
2497 *) Another fix for SSLv2 session ID handling: the session ID was incorrectly
2498 checked on reconnect on the client side, therefore session resumption
2499 could still fail with a "ssl session id is different" error. This
2500 behaviour is masked when SSL_OP_ALL is used due to
2501 SSL_OP_MICROSOFT_SESS_ID_BUG being set.
2502 Behaviour observed by Crispin Flowerday <crispin@flowerday.cx> as
2503 followup to PR #377.
2506 *) IA-32 assembler support enhancements: unified ELF targets, support
2507 for SCO/Caldera platforms, fix for Cygwin shared build.
2510 *) Add support for FreeBSD on sparc64. As a consequence, support for
2511 FreeBSD on non-x86 processors is separate from x86 processors on
2512 the config script, much like the NetBSD support.
2513 [Richard Levitte & Kris Kennaway <kris@obsecurity.org>]
2515 Changes between 0.9.6h and 0.9.7 [31 Dec 2002]
2517 [NB: OpenSSL 0.9.6i and later 0.9.6 patch levels were released after
2520 *) Fix session ID handling in SSLv2 client code: the SERVER FINISHED
2521 code (06) was taken as the first octet of the session ID and the last
2522 octet was ignored consequently. As a result SSLv2 client side session
2523 caching could not have worked due to the session ID mismatch between
2525 Behaviour observed by Crispin Flowerday <crispin@flowerday.cx> as
2529 *) Change the declaration of needed Kerberos libraries to use EX_LIBS
2530 instead of the special (and badly supported) LIBKRB5. LIBKRB5 is
2534 *) The hw_ncipher.c engine requires dynamic locks. Unfortunately, it
2535 seems that in spite of existing for more than a year, many application
2536 author have done nothing to provide the necessary callbacks, which
2537 means that this particular engine will not work properly anywhere.
2538 This is a very unfortunate situation which forces us, in the name
2539 of usability, to give the hw_ncipher.c a static lock, which is part
2541 NOTE: This is for the 0.9.7 series ONLY. This hack will never
2542 appear in 0.9.8 or later. We EXPECT application authors to have
2543 dealt properly with this when 0.9.8 is released (unless we actually
2544 make such changes in the libcrypto locking code that changes will
2545 have to be made anyway).
2548 *) In asn1_d2i_read_bio() repeatedly call BIO_read() until all content
2549 octets have been read, EOF or an error occurs. Without this change
2550 some truncated ASN1 structures will not produce an error.
2553 *) Disable Heimdal support, since it hasn't been fully implemented.
2554 Still give the possibility to force the use of Heimdal, but with
2555 warnings and a request that patches get sent to openssl-dev.
2558 *) Add the VC-CE target, introduce the WINCE sysname, and add
2559 INSTALL.WCE and appropriate conditionals to make it build.
2560 [Steven Reddie <smr@essemer.com.au> via Richard Levitte]
2562 *) Change the DLL names for Cygwin to cygcrypto-x.y.z.dll and
2563 cygssl-x.y.z.dll, where x, y and z are the major, minor and
2564 edit numbers of the version.
2565 [Corinna Vinschen <vinschen@redhat.com> and Richard Levitte]
2567 *) Introduce safe string copy and catenation functions
2568 (BUF_strlcpy() and BUF_strlcat()).
2569 [Ben Laurie (CHATS) and Richard Levitte]
2571 *) Avoid using fixed-size buffers for one-line DNs.
2572 [Ben Laurie (CHATS)]
2574 *) Add BUF_MEM_grow_clean() to avoid information leakage when
2575 resizing buffers containing secrets, and use where appropriate.
2576 [Ben Laurie (CHATS)]
2578 *) Avoid using fixed size buffers for configuration file location.
2579 [Ben Laurie (CHATS)]
2581 *) Avoid filename truncation for various CA files.
2582 [Ben Laurie (CHATS)]
2584 *) Use sizeof in preference to magic numbers.
2585 [Ben Laurie (CHATS)]
2587 *) Avoid filename truncation in cert requests.
2588 [Ben Laurie (CHATS)]
2590 *) Add assertions to check for (supposedly impossible) buffer
2592 [Ben Laurie (CHATS)]
2594 *) Don't cache truncated DNS entries in the local cache (this could
2595 potentially lead to a spoofing attack).
2596 [Ben Laurie (CHATS)]
2598 *) Fix various buffers to be large enough for hex/decimal
2599 representations in a platform independent manner.
2600 [Ben Laurie (CHATS)]
2602 *) Add CRYPTO_realloc_clean() to avoid information leakage when
2603 resizing buffers containing secrets, and use where appropriate.
2604 [Ben Laurie (CHATS)]
2606 *) Add BIO_indent() to avoid much slightly worrying code to do
2608 [Ben Laurie (CHATS)]
2610 *) Convert sprintf()/BIO_puts() to BIO_printf().
2611 [Ben Laurie (CHATS)]
2613 *) buffer_gets() could terminate with the buffer only half
2615 [Ben Laurie (CHATS)]
2617 *) Add assertions to prevent user-supplied crypto functions from
2618 overflowing internal buffers by having large block sizes, etc.
2619 [Ben Laurie (CHATS)]
2621 *) New OPENSSL_assert() macro (similar to assert(), but enabled
2623 [Ben Laurie (CHATS)]
2625 *) Eliminate unused copy of key in RC4.
2626 [Ben Laurie (CHATS)]
2628 *) Eliminate unused and incorrectly sized buffers for IV in pem.h.
2629 [Ben Laurie (CHATS)]
2631 *) Fix off-by-one error in EGD path.
2632 [Ben Laurie (CHATS)]
2634 *) If RANDFILE path is too long, ignore instead of truncating.
2635 [Ben Laurie (CHATS)]
2637 *) Eliminate unused and incorrectly sized X.509 structure
2639 [Ben Laurie (CHATS)]
2641 *) Eliminate unused and dangerous function knumber().
2642 [Ben Laurie (CHATS)]
2644 *) Eliminate unused and dangerous structure, KSSL_ERR.
2645 [Ben Laurie (CHATS)]
2647 *) Protect against overlong session ID context length in an encoded
2648 session object. Since these are local, this does not appear to be
2650 [Ben Laurie (CHATS)]
2652 *) Change from security patch (see 0.9.6e below) that did not affect
2653 the 0.9.6 release series:
2655 Remote buffer overflow in SSL3 protocol - an attacker could
2656 supply an oversized master key in Kerberos-enabled versions.
2658 [Ben Laurie (CHATS)]
2660 *) Change the SSL kerb5 codes to match RFC 2712.
2663 *) Make -nameopt work fully for req and add -reqopt switch.
2664 [Michael Bell <michael.bell@rz.hu-berlin.de>, Steve Henson]
2666 *) The "block size" for block ciphers in CFB and OFB mode should be 1.
2667 [Steve Henson, reported by Yngve Nysaeter Pettersen <yngve@opera.com>]
2669 *) Make sure tests can be performed even if the corresponding algorithms
2670 have been removed entirely. This was also the last step to make
2671 OpenSSL compilable with DJGPP under all reasonable conditions.
2672 [Richard Levitte, Doug Kaufman <dkaufman@rahul.net>]
2674 *) Add cipher selection rules COMPLEMENTOFALL and COMPLEMENTOFDEFAULT
2675 to allow version independent disabling of normally unselected ciphers,
2676 which may be activated as a side-effect of selecting a single cipher.
2678 (E.g., cipher list string "RSA" enables ciphersuites that are left
2679 out of "ALL" because they do not provide symmetric encryption.
2680 "RSA:!COMPLEMEMENTOFALL" avoids these unsafe ciphersuites.)
2681 [Lutz Jaenicke, Bodo Moeller]
2683 *) Add appropriate support for separate platform-dependent build
2684 directories. The recommended way to make a platform-dependent
2685 build directory is the following (tested on Linux), maybe with
2688 # Place yourself outside of the OpenSSL source tree. In
2689 # this example, the environment variable OPENSSL_SOURCE
2690 # is assumed to contain the absolute OpenSSL source directory.
2691 mkdir -p objtree/"`uname -s`-`uname -r`-`uname -m`"
2692 cd objtree/"`uname -s`-`uname -r`-`uname -m`"
2693 (cd $OPENSSL_SOURCE; find . -type f) | while read F; do
2694 mkdir -p `dirname $F`
2695 ln -s $OPENSSL_SOURCE/$F $F
2698 To be absolutely sure not to disturb the source tree, a "make clean"
2699 is a good thing. If it isn't successfull, don't worry about it,
2700 it probably means the source directory is very clean.
2703 *) Make sure any ENGINE control commands make local copies of string
2704 pointers passed to them whenever necessary. Otherwise it is possible
2705 the caller may have overwritten (or deallocated) the original string
2706 data when a later ENGINE operation tries to use the stored values.
2707 [Götz Babin-Ebell <babinebell@trustcenter.de>]
2709 *) Improve diagnostics in file reading and command-line digests.
2710 [Ben Laurie aided and abetted by Solar Designer <solar@openwall.com>]
2712 *) Add AES modes CFB and OFB to the object database. Correct an
2713 error in AES-CFB decryption.
2716 *) Remove most calls to EVP_CIPHER_CTX_cleanup() in evp_enc.c, this
2717 allows existing EVP_CIPHER_CTX structures to be reused after
2718 calling EVP_*Final(). This behaviour is used by encryption
2719 BIOs and some applications. This has the side effect that
2720 applications must explicitly clean up cipher contexts with
2721 EVP_CIPHER_CTX_cleanup() or they will leak memory.
2724 *) Check the values of dna and dnb in bn_mul_recursive before calling
2725 bn_mul_comba (a non zero value means the a or b arrays do not contain
2726 n2 elements) and fallback to bn_mul_normal if either is not zero.
2729 *) Fix escaping of non-ASCII characters when using the -subj option
2730 of the "openssl req" command line tool. (Robert Joop <joop@fokus.gmd.de>)
2733 *) Make object definitions compliant to LDAP (RFC2256): SN is the short
2734 form for "surname", serialNumber has no short form.
2735 Use "mail" as the short name for "rfc822Mailbox" according to RFC2798;
2736 therefore remove "mail" short name for "internet 7".
2737 The OID for unique identifiers in X509 certificates is
2738 x500UniqueIdentifier, not uniqueIdentifier.
2739 Some more OID additions. (Michael Bell <michael.bell@rz.hu-berlin.de>)
2742 *) Add an "init" command to the ENGINE config module and auto initialize
2743 ENGINEs. Without any "init" command the ENGINE will be initialized
2744 after all ctrl commands have been executed on it. If init=1 the
2745 ENGINE is initailized at that point (ctrls before that point are run
2746 on the uninitialized ENGINE and after on the initialized one). If
2747 init=0 then the ENGINE will not be iniatialized at all.
2750 *) Fix the 'app_verify_callback' interface so that the user-defined
2751 argument is actually passed to the callback: In the
2752 SSL_CTX_set_cert_verify_callback() prototype, the callback
2753 declaration has been changed from
2756 int (*cb)(X509_STORE_CTX *,void *);
2757 in ssl_verify_cert_chain (ssl/ssl_cert.c), the call
2758 i=s->ctx->app_verify_callback(&ctx)
2759 has been changed into
2760 i=s->ctx->app_verify_callback(&ctx, s->ctx->app_verify_arg).
2762 To update applications using SSL_CTX_set_cert_verify_callback(),
2763 a dummy argument can be added to their callback functions.
2764 [D. K. Smetters <smetters@parc.xerox.com>]
2766 *) Added the '4758cca' ENGINE to support IBM 4758 cards.
2767 [Maurice Gittens <maurice@gittens.nl>, touchups by Geoff Thorpe]
2769 *) Add and OPENSSL_LOAD_CONF define which will cause
2770 OpenSSL_add_all_algorithms() to load the openssl.cnf config file.
2771 This allows older applications to transparently support certain
2772 OpenSSL features: such as crypto acceleration and dynamic ENGINE loading.
2773 Two new functions OPENSSL_add_all_algorithms_noconf() which will never
2774 load the config file and OPENSSL_add_all_algorithms_conf() which will
2775 always load it have also been added.
2778 *) Add the OFB, CFB and CTR (all with 128 bit feedback) to AES.
2779 Adjust NIDs and EVP layer.
2780 [Stephen Sprunk <stephen@sprunk.org> and Richard Levitte]
2782 *) Config modules support in openssl utility.
2784 Most commands now load modules from the config file,
2785 though in a few (such as version) this isn't done
2786 because it couldn't be used for anything.
2788 In the case of ca and req the config file used is
2789 the same as the utility itself: that is the -config
2790 command line option can be used to specify an
2794 *) Move default behaviour from OPENSSL_config(). If appname is NULL
2795 use "openssl_conf" if filename is NULL use default openssl config file.
2798 *) Add an argument to OPENSSL_config() to allow the use of an alternative
2799 config section name. Add a new flag to tolerate a missing config file
2800 and move code to CONF_modules_load_file().
2803 *) Support for crypto accelerator cards from Accelerated Encryption
2804 Processing, www.aep.ie. (Use engine 'aep')
2805 The support was copied from 0.9.6c [engine] and adapted/corrected
2806 to work with the new engine framework.
2807 [AEP Inc. and Richard Levitte]
2809 *) Support for SureWare crypto accelerator cards from Baltimore
2810 Technologies. (Use engine 'sureware')
2811 The support was copied from 0.9.6c [engine] and adapted
2812 to work with the new engine framework.
2815 *) Have the CHIL engine fork-safe (as defined by nCipher) and actually
2816 make the newer ENGINE framework commands for the CHIL engine work.
2817 [Toomas Kiisk <vix@cyber.ee> and Richard Levitte]
2819 *) Make it possible to produce shared libraries on ReliantUNIX.
2820 [Robert Dahlem <Robert.Dahlem@ffm2.siemens.de> via Richard Levitte]
2822 *) Add the configuration target debug-linux-ppro.
2823 Make 'openssl rsa' use the general key loading routines
2824 implemented in apps.c, and make those routines able to
2825 handle the key format FORMAT_NETSCAPE and the variant
2827 [Toomas Kiisk <vix@cyber.ee> via Richard Levitte]
2829 *) Fix a crashbug and a logic bug in hwcrhk_load_pubkey().
2830 [Toomas Kiisk <vix@cyber.ee> via Richard Levitte]
2832 *) Add -keyform to rsautl, and document -engine.
2833 [Richard Levitte, inspired by Toomas Kiisk <vix@cyber.ee>]
2835 *) Change BIO_new_file (crypto/bio/bss_file.c) to use new
2836 BIO_R_NO_SUCH_FILE error code rather than the generic
2837 ERR_R_SYS_LIB error code if fopen() fails with ENOENT.
2840 *) Add new functions
2842 ERR_peek_last_error_line
2843 ERR_peek_last_error_line_data.
2844 These are similar to
2847 ERR_peek_error_line_data,
2848 but report on the latest error recorded rather than the first one
2849 still in the error queue.
2850 [Ben Laurie, Bodo Moeller]
2852 *) default_algorithms option in ENGINE config module. This allows things
2854 default_algorithms = ALL
2855 default_algorithms = RSA, DSA, RAND, CIPHERS, DIGESTS
2858 *) Prelminary ENGINE config module.
2861 *) New experimental application configuration code.
2864 *) Change the AES code to follow the same name structure as all other
2865 symmetric ciphers, and behave the same way. Move everything to
2866 the directory crypto/aes, thereby obsoleting crypto/rijndael.
2867 [Stephen Sprunk <stephen@sprunk.org> and Richard Levitte]
2869 *) SECURITY: remove unsafe setjmp/signal interaction from ui_openssl.c.
2870 [Ben Laurie and Theo de Raadt]
2872 *) Add option to output public keys in req command.
2873 [Massimiliano Pala madwolf@openca.org]
2875 *) Use wNAFs in EC_POINTs_mul() for improved efficiency
2876 (up to about 10% better than before for P-192 and P-224).
2879 *) New functions/macros
2881 SSL_CTX_set_msg_callback(ctx, cb)
2882 SSL_CTX_set_msg_callback_arg(ctx, arg)
2883 SSL_set_msg_callback(ssl, cb)
2884 SSL_set_msg_callback_arg(ssl, arg)
2886 to request calling a callback function
2888 void cb(int write_p, int version, int content_type,
2889 const void *buf, size_t len, SSL *ssl, void *arg)
2891 whenever a protocol message has been completely received
2892 (write_p == 0) or sent (write_p == 1). Here 'version' is the
2893 protocol version according to which the SSL library interprets
2894 the current protocol message (SSL2_VERSION, SSL3_VERSION, or
2895 TLS1_VERSION). 'content_type' is 0 in the case of SSL 2.0, or
2896 the content type as defined in the SSL 3.0/TLS 1.0 protocol
2897 specification (change_cipher_spec(20), alert(21), handshake(22)).
2898 'buf' and 'len' point to the actual message, 'ssl' to the
2899 SSL object, and 'arg' is the application-defined value set by
2900 SSL[_CTX]_set_msg_callback_arg().
2902 'openssl s_client' and 'openssl s_server' have new '-msg' options
2903 to enable a callback that displays all protocol messages.
2906 *) Change the shared library support so shared libraries are built as
2907 soon as the corresponding static library is finished, and thereby get
2908 openssl and the test programs linked against the shared library.
2909 This still only happens when the keyword "shard" has been given to
2910 the configuration scripts.
2912 NOTE: shared library support is still an experimental thing, and
2913 backward binary compatibility is still not guaranteed.
2914 ["Maciej W. Rozycki" <macro@ds2.pg.gda.pl> and Richard Levitte]
2916 *) Add support for Subject Information Access extension.
2917 [Peter Sylvester <Peter.Sylvester@EdelWeb.fr>]
2919 *) Make BUF_MEM_grow() behaviour more consistent: Initialise to zero
2920 additional bytes when new memory had to be allocated, not just
2921 when reusing an existing buffer.
2924 *) New command line and configuration option 'utf8' for the req command.
2925 This allows field values to be specified as UTF8 strings.
2928 *) Add -multi and -mr options to "openssl speed" - giving multiple parallel
2929 runs for the former and machine-readable output for the latter.
2932 *) Add '-noemailDN' option to 'openssl ca'. This prevents inclusion
2933 of the e-mail address in the DN (i.e., it will go into a certificate
2934 extension only). The new configuration file option 'email_in_dn = no'
2935 has the same effect.
2936 [Massimiliano Pala madwolf@openca.org]
2938 *) Change all functions with names starting with des_ to be starting
2939 with DES_ instead. Add wrappers that are compatible with libdes,
2940 but are named _ossl_old_des_*. Finally, add macros that map the
2941 des_* symbols to the corresponding _ossl_old_des_* if libdes
2942 compatibility is desired. If OpenSSL 0.9.6c compatibility is
2943 desired, the des_* symbols will be mapped to DES_*, with one
2946 Since we provide two compatibility mappings, the user needs to
2947 define the macro OPENSSL_DES_LIBDES_COMPATIBILITY if libdes
2948 compatibility is desired. The default (i.e., when that macro
2949 isn't defined) is OpenSSL 0.9.6c compatibility.
2951 There are also macros that enable and disable the support of old
2952 des functions altogether. Those are OPENSSL_ENABLE_OLD_DES_SUPPORT
2953 and OPENSSL_DISABLE_OLD_DES_SUPPORT. If none or both of those
2954 are defined, the default will apply: to support the old des routines.
2956 In either case, one must include openssl/des.h to get the correct
2957 definitions. Do not try to just include openssl/des_old.h, that
2960 NOTE: This is a major break of an old API into a new one. Software
2961 authors are encouraged to switch to the DES_ style functions. Some
2962 time in the future, des_old.h and the libdes compatibility functions
2963 will be disable (i.e. OPENSSL_DISABLE_OLD_DES_SUPPORT will be the
2964 default), and then completely removed.
2967 *) Test for certificates which contain unsupported critical extensions.
2968 If such a certificate is found during a verify operation it is
2969 rejected by default: this behaviour can be overridden by either
2970 handling the new error X509_V_ERR_UNHANDLED_CRITICAL_EXTENSION or
2971 by setting the verify flag X509_V_FLAG_IGNORE_CRITICAL. A new function
2972 X509_supported_extension() has also been added which returns 1 if a
2973 particular extension is supported.
2976 *) Modify the behaviour of EVP cipher functions in similar way to digests
2977 to retain compatibility with existing code.
2980 *) Modify the behaviour of EVP_DigestInit() and EVP_DigestFinal() to retain
2981 compatibility with existing code. In particular the 'ctx' parameter does
2982 not have to be to be initialized before the call to EVP_DigestInit() and
2983 it is tidied up after a call to EVP_DigestFinal(). New function
2984 EVP_DigestFinal_ex() which does not tidy up the ctx. Similarly function
2985 EVP_MD_CTX_copy() changed to not require the destination to be
2986 initialized valid and new function EVP_MD_CTX_copy_ex() added which
2987 requires the destination to be valid.
2989 Modify all the OpenSSL digest calls to use EVP_DigestInit_ex(),
2990 EVP_DigestFinal_ex() and EVP_MD_CTX_copy_ex().
2993 *) Change ssl3_get_message (ssl/s3_both.c) and the functions using it
2994 so that complete 'Handshake' protocol structures are kept in memory
2995 instead of overwriting 'msg_type' and 'length' with 'body' data.
2998 *) Add an implementation of SSL_add_dir_cert_subjects_to_stack for Win32.
2999 [Massimo Santin via Richard Levitte]
3001 *) Major restructuring to the underlying ENGINE code. This includes
3002 reduction of linker bloat, separation of pure "ENGINE" manipulation
3003 (initialisation, etc) from functionality dealing with implementations
3004 of specific crypto iterfaces. This change also introduces integrated
3005 support for symmetric ciphers and digest implementations - so ENGINEs
3006 can now accelerate these by providing EVP_CIPHER and EVP_MD
3007 implementations of their own. This is detailed in crypto/engine/README
3008 as it couldn't be adequately described here. However, there are a few
3009 API changes worth noting - some RSA, DSA, DH, and RAND functions that
3010 were changed in the original introduction of ENGINE code have now
3011 reverted back - the hooking from this code to ENGINE is now a good
3012 deal more passive and at run-time, operations deal directly with
3013 RSA_METHODs, DSA_METHODs (etc) as they did before, rather than
3014 dereferencing through an ENGINE pointer any more. Also, the ENGINE
3015 functions dealing with BN_MOD_EXP[_CRT] handlers have been removed -
3016 they were not being used by the framework as there is no concept of a
3017 BIGNUM_METHOD and they could not be generalised to the new
3018 'ENGINE_TABLE' mechanism that underlies the new code. Similarly,
3019 ENGINE_cpy() has been removed as it cannot be consistently defined in
3023 *) Change ASN1_GENERALIZEDTIME_check() to allow fractional seconds.
3026 *) Change mkdef.pl to sort symbols that get the same entry number,
3027 and make sure the automatically generated functions ERR_load_*
3028 become part of libeay.num as well.
3031 *) New function SSL_renegotiate_pending(). This returns true once
3032 renegotiation has been requested (either SSL_renegotiate() call
3033 or HelloRequest/ClientHello receveived from the peer) and becomes
3034 false once a handshake has been completed.
3035 (For servers, SSL_renegotiate() followed by SSL_do_handshake()
3036 sends a HelloRequest, but does not ensure that a handshake takes
3037 place. SSL_renegotiate_pending() is useful for checking if the
3038 client has followed the request.)
3041 *) New SSL option SSL_OP_NO_SESSION_RESUMPTION_ON_RENEGOTIATION.
3042 By default, clients may request session resumption even during
3043 renegotiation (if session ID contexts permit); with this option,
3044 session resumption is possible only in the first handshake.
3046 SSL_OP_ALL is now 0x00000FFFL instead of 0x000FFFFFL. This makes
3047 more bits available for options that should not be part of
3048 SSL_OP_ALL (such as SSL_OP_NO_SESSION_RESUMPTION_ON_RENEGOTIATION).
3051 *) Add some demos for certificate and certificate request creation.
3054 *) Make maximum certificate chain size accepted from the peer application
3055 settable (SSL*_get/set_max_cert_list()), as proposed by
3056 "Douglas E. Engert" <deengert@anl.gov>.
3059 *) Add support for shared libraries for Unixware-7
3060 (Boyd Lynn Gerber <gerberb@zenez.com>).
3063 *) Add a "destroy" handler to ENGINEs that allows structural cleanup to
3064 be done prior to destruction. Use this to unload error strings from
3065 ENGINEs that load their own error strings. NB: This adds two new API
3066 functions to "get" and "set" this destroy handler in an ENGINE.
3069 *) Alter all existing ENGINE implementations (except "openssl" and
3070 "openbsd") to dynamically instantiate their own error strings. This
3071 makes them more flexible to be built both as statically-linked ENGINEs
3072 and self-contained shared-libraries loadable via the "dynamic" ENGINE.
3073 Also, add stub code to each that makes building them as self-contained
3074 shared-libraries easier (see README.ENGINE).
3077 *) Add a "dynamic" ENGINE that provides a mechanism for binding ENGINE
3078 implementations into applications that are completely implemented in
3079 self-contained shared-libraries. The "dynamic" ENGINE exposes control
3080 commands that can be used to configure what shared-library to load and
3081 to control aspects of the way it is handled. Also, made an update to
3082 the README.ENGINE file that brings its information up-to-date and
3083 provides some information and instructions on the "dynamic" ENGINE
3084 (ie. how to use it, how to build "dynamic"-loadable ENGINEs, etc).
3087 *) Make it possible to unload ranges of ERR strings with a new
3088 "ERR_unload_strings" function.
3091 *) Add a copy() function to EVP_MD.
3094 *) Make EVP_MD routines take a context pointer instead of just the
3095 md_data void pointer.
3098 *) Add flags to EVP_MD and EVP_MD_CTX. EVP_MD_FLAG_ONESHOT indicates
3099 that the digest can only process a single chunk of data
3100 (typically because it is provided by a piece of
3101 hardware). EVP_MD_CTX_FLAG_ONESHOT indicates that the application
3102 is only going to provide a single chunk of data, and hence the
3103 framework needn't accumulate the data for oneshot drivers.
3106 *) As with "ERR", make it possible to replace the underlying "ex_data"
3107 functions. This change also alters the storage and management of global
3108 ex_data state - it's now all inside ex_data.c and all "class" code (eg.
3109 RSA, BIO, SSL_CTX, etc) no longer stores its own STACKS and per-class
3110 index counters. The API functions that use this state have been changed
3111 to take a "class_index" rather than pointers to the class's local STACK
3112 and counter, and there is now an API function to dynamically create new
3113 classes. This centralisation allows us to (a) plug a lot of the
3114 thread-safety problems that existed, and (b) makes it possible to clean
3115 up all allocated state using "CRYPTO_cleanup_all_ex_data()". W.r.t. (b)
3116 such data would previously have always leaked in application code and
3117 workarounds were in place to make the memory debugging turn a blind eye
3118 to it. Application code that doesn't use this new function will still
3119 leak as before, but their memory debugging output will announce it now
3120 rather than letting it slide.
3122 Besides the addition of CRYPTO_cleanup_all_ex_data(), another API change
3123 induced by the "ex_data" overhaul is that X509_STORE_CTX_init() now
3124 has a return value to indicate success or failure.
3127 *) Make it possible to replace the underlying "ERR" functions such that the
3128 global state (2 LHASH tables and 2 locks) is only used by the "default"
3129 implementation. This change also adds two functions to "get" and "set"
3130 the implementation prior to it being automatically set the first time
3131 any other ERR function takes place. Ie. an application can call "get",
3132 pass the return value to a module it has just loaded, and that module
3133 can call its own "set" function using that value. This means the
3134 module's "ERR" operations will use (and modify) the error state in the
3135 application and not in its own statically linked copy of OpenSSL code.
3138 *) Give DH, DSA, and RSA types their own "**_up_ref()" function to increment
3139 reference counts. This performs normal REF_PRINT/REF_CHECK macros on
3140 the operation, and provides a more encapsulated way for external code
3141 (crypto/evp/ and ssl/) to do this. Also changed the evp and ssl code
3142 to use these functions rather than manually incrementing the counts.
3144 Also rename "DSO_up()" function to more descriptive "DSO_up_ref()".
3147 *) Add EVP test program.
3150 *) Add symmetric cipher support to ENGINE. Expect the API to change!
3153 *) New CRL functions: X509_CRL_set_version(), X509_CRL_set_issuer_name()
3154 X509_CRL_set_lastUpdate(), X509_CRL_set_nextUpdate(), X509_CRL_sort(),
3155 X509_REVOKED_set_serialNumber(), and X509_REVOKED_set_revocationDate().
3156 These allow a CRL to be built without having to access X509_CRL fields
3157 directly. Modify 'ca' application to use new functions.
3160 *) Move SSL_OP_TLS_ROLLBACK_BUG out of the SSL_OP_ALL list of recommended
3161 bug workarounds. Rollback attack detection is a security feature.
3162 The problem will only arise on OpenSSL servers when TLSv1 is not
3163 available (sslv3_server_method() or SSL_OP_NO_TLSv1).
3164 Software authors not wanting to support TLSv1 will have special reasons
3165 for their choice and can explicitly enable this option.
3166 [Bodo Moeller, Lutz Jaenicke]
3168 *) Rationalise EVP so it can be extended: don't include a union of
3169 cipher/digest structures, add init/cleanup functions for EVP_MD_CTX
3170 (similar to those existing for EVP_CIPHER_CTX).
3175 EVP_MD_CTX_init(&md); /* new function call */
3176 EVP_DigestInit(&md, EVP_sha1());
3177 EVP_DigestUpdate(&md, in, len);
3178 EVP_DigestFinal(&md, out, NULL);
3179 EVP_MD_CTX_cleanup(&md); /* new function call */
3183 *) Make DES key schedule conform to the usual scheme, as well as
3184 correcting its structure. This means that calls to DES functions
3185 now have to pass a pointer to a des_key_schedule instead of a
3186 plain des_key_schedule (which was actually always a pointer
3189 des_key_schedule ks;
3191 des_set_key_checked(..., &ks);
3192 des_ncbc_encrypt(..., &ks, ...);
3194 (Note that a later change renames 'des_...' into 'DES_...'.)
3197 *) Initial reduction of linker bloat: the use of some functions, such as
3198 PEM causes large amounts of unused functions to be linked in due to
3199 poor organisation. For example pem_all.c contains every PEM function
3200 which has a knock on effect of linking in large amounts of (unused)
3201 ASN1 code. Grouping together similar functions and splitting unrelated
3202 functions prevents this.
3205 *) Cleanup of EVP macros.
3208 *) Change historical references to {NID,SN,LN}_des_ede and ede3 to add the
3209 correct _ecb suffix.
3212 *) Add initial OCSP responder support to ocsp application. The
3213 revocation information is handled using the text based index
3214 use by the ca application. The responder can either handle
3215 requests generated internally, supplied in files (for example
3216 via a CGI script) or using an internal minimal server.
3219 *) Add configuration choices to get zlib compression for TLS.
3222 *) Changes to Kerberos SSL for RFC 2712 compliance:
3223 1. Implemented real KerberosWrapper, instead of just using
3224 KRB5 AP_REQ message. [Thanks to Simon Wilkinson <sxw@sxw.org.uk>]
3225 2. Implemented optional authenticator field of KerberosWrapper.
3227 Added openssl-style ASN.1 macros for Kerberos ticket, ap_req,
3228 and authenticator structs; see crypto/krb5/.
3230 Generalized Kerberos calls to support multiple Kerberos libraries.
3231 [Vern Staats <staatsvr@asc.hpc.mil>,
3232 Jeffrey Altman <jaltman@columbia.edu>
3233 via Richard Levitte]
3235 *) Cause 'openssl speed' to use fully hard-coded DSA keys as it
3236 already does with RSA. testdsa.h now has 'priv_key/pub_key'
3237 values for each of the key sizes rather than having just
3238 parameters (and 'speed' generating keys each time).
3241 *) Speed up EVP routines.
3244 type 8 bytes 64 bytes 256 bytes 1024 bytes 8192 bytes
3245 des-cbc 4408.85k 5560.51k 5778.46k 5862.20k 5825.16k
3246 des-cbc 4389.55k 5571.17k 5792.23k 5846.91k 5832.11k
3247 des-cbc 4394.32k 5575.92k 5807.44k 5848.37k 5841.30k
3249 des-cbc 3482.66k 5069.49k 5496.39k 5614.16k 5639.28k
3250 des-cbc 3480.74k 5068.76k 5510.34k 5609.87k 5635.52k
3251 des-cbc 3483.72k 5067.62k 5504.60k 5708.01k 5724.80k
3254 des-cbc 4660.16k 5650.19k 5807.19k 5827.13k 5783.32k
3256 des-cbc 3624.96k 5258.21k 5530.91k 5624.30k 5628.26k
3259 *) Added the OS2-EMX target.
3260 ["Brian Havard" <brianh@kheldar.apana.org.au> and Richard Levitte]
3262 *) Rewrite apps to use NCONF routines instead of the old CONF. New functions
3263 to support NCONF routines in extension code. New function CONF_set_nconf()
3264 to allow functions which take an NCONF to also handle the old LHASH
3265 structure: this means that the old CONF compatible routines can be
3266 retained (in particular wrt extensions) without having to duplicate the
3267 code. New function X509V3_add_ext_nconf_sk to add extensions to a stack.
3270 *) Enhance the general user interface with mechanisms for inner control
3271 and with possibilities to have yes/no kind of prompts.
3274 *) Change all calls to low level digest routines in the library and
3275 applications to use EVP. Add missing calls to HMAC_cleanup() and
3276 don't assume HMAC_CTX can be copied using memcpy().
3277 [Verdon Walker <VWalker@novell.com>, Steve Henson]
3279 *) Add the possibility to control engines through control names but with
3280 arbitrary arguments instead of just a string.
3281 Change the key loaders to take a UI_METHOD instead of a callback
3282 function pointer. NOTE: this breaks binary compatibility with earlier
3283 versions of OpenSSL [engine].
3284 Adapt the nCipher code for these new conditions and add a card insertion
3288 *) Enhance the general user interface with mechanisms to better support
3289 dialog box interfaces, application-defined prompts, the possibility
3290 to use defaults (for example default passwords from somewhere else)
3291 and interrupts/cancellations.
3294 *) Tidy up PKCS#12 attribute handling. Add support for the CSP name
3295 attribute in PKCS#12 files, add new -CSP option to pkcs12 utility.
3298 *) Fix a memory leak in 'sk_dup()' in the case reallocation fails. (Also
3299 tidy up some unnecessarily weird code in 'sk_new()').
3300 [Geoff, reported by Diego Tartara <dtartara@novamens.com>]
3302 *) Change the key loading routines for ENGINEs to use the same kind
3303 callback (pem_password_cb) as all other routines that need this
3307 *) Increase ENTROPY_NEEDED to 32 bytes, as Rijndael can operate with
3308 256 bit (=32 byte) keys. Of course seeding with more entropy bytes
3309 than this minimum value is recommended.
3312 *) New random seeder for OpenVMS, using the system process statistics
3313 that are easily reachable.
3316 *) Windows apparently can't transparently handle global
3317 variables defined in DLLs. Initialisations such as:
3319 const ASN1_ITEM *it = &ASN1_INTEGER_it;
3321 wont compile. This is used by the any applications that need to
3322 declare their own ASN1 modules. This was fixed by adding the option
3323 EXPORT_VAR_AS_FN to all Win32 platforms, although this isn't strictly
3324 needed for static libraries under Win32.
3327 *) New functions X509_PURPOSE_set() and X509_TRUST_set() to handle
3328 setting of purpose and trust fields. New X509_STORE trust and
3329 purpose functions and tidy up setting in other SSL functions.
3332 *) Add copies of X509_STORE_CTX fields and callbacks to X509_STORE
3333 structure. These are inherited by X509_STORE_CTX when it is
3334 initialised. This allows various defaults to be set in the
3335 X509_STORE structure (such as flags for CRL checking and custom
3336 purpose or trust settings) for functions which only use X509_STORE_CTX
3337 internally such as S/MIME.
3339 Modify X509_STORE_CTX_purpose_inherit() so it only sets purposes and
3340 trust settings if they are not set in X509_STORE. This allows X509_STORE
3341 purposes and trust (in S/MIME for example) to override any set by default.
3343 Add command line options for CRL checking to smime, s_client and s_server
3347 *) Initial CRL based revocation checking. If the CRL checking flag(s)
3348 are set then the CRL is looked up in the X509_STORE structure and
3349 its validity and signature checked, then if the certificate is found
3350 in the CRL the verify fails with a revoked error.
3352 Various new CRL related callbacks added to X509_STORE_CTX structure.
3354 Command line options added to 'verify' application to support this.
3356 This needs some additional work, such as being able to handle multiple
3357 CRLs with different times, extension based lookup (rather than just
3358 by subject name) and ultimately more complete V2 CRL extension
3362 *) Add a general user interface API (crypto/ui/). This is designed
3363 to replace things like des_read_password and friends (backward
3364 compatibility functions using this new API are provided).
3365 The purpose is to remove prompting functions from the DES code
3366 section as well as provide for prompting through dialog boxes in
3367 a window system and the like.
3370 *) Add "ex_data" support to ENGINE so implementations can add state at a
3371 per-structure level rather than having to store it globally.
3374 *) Make it possible for ENGINE structures to be copied when retrieved by
3375 ENGINE_by_id() if the ENGINE specifies a new flag: ENGINE_FLAGS_BY_ID_COPY.
3376 This causes the "original" ENGINE structure to act like a template,
3377 analogous to the RSA vs. RSA_METHOD type of separation. Because of this
3378 operational state can be localised to each ENGINE structure, despite the
3379 fact they all share the same "methods". New ENGINE structures returned in
3380 this case have no functional references and the return value is the single
3381 structural reference. This matches the single structural reference returned
3382 by ENGINE_by_id() normally, when it is incremented on the pre-existing
3386 *) Fix ASN1 decoder when decoding type ANY and V_ASN1_OTHER: since this
3387 needs to match any other type at all we need to manually clear the
3391 *) Changes to the "openssl engine" utility to include;
3392 - verbosity levels ('-v', '-vv', and '-vvv') that provide information
3393 about an ENGINE's available control commands.
3394 - executing control commands from command line arguments using the
3395 '-pre' and '-post' switches. '-post' is only used if '-t' is
3396 specified and the ENGINE is successfully initialised. The syntax for
3397 the individual commands are colon-separated, for example;
3398 openssl engine chil -pre FORK_CHECK:0 -pre SO_PATH:/lib/test.so
3401 *) New dynamic control command support for ENGINEs. ENGINEs can now
3402 declare their own commands (numbers), names (strings), descriptions,
3403 and input types for run-time discovery by calling applications. A
3404 subset of these commands are implicitly classed as "executable"
3405 depending on their input type, and only these can be invoked through
3406 the new string-based API function ENGINE_ctrl_cmd_string(). (Eg. this
3407 can be based on user input, config files, etc). The distinction is
3408 that "executable" commands cannot return anything other than a boolean
3409 result and can only support numeric or string input, whereas some
3410 discoverable commands may only be for direct use through
3411 ENGINE_ctrl(), eg. supporting the exchange of binary data, function
3412 pointers, or other custom uses. The "executable" commands are to
3413 support parameterisations of ENGINE behaviour that can be
3414 unambiguously defined by ENGINEs and used consistently across any
3415 OpenSSL-based application. Commands have been added to all the
3416 existing hardware-supporting ENGINEs, noticeably "SO_PATH" to allow
3417 control over shared-library paths without source code alterations.
3420 *) Changed all ENGINE implementations to dynamically allocate their
3421 ENGINEs rather than declaring them statically. Apart from this being
3422 necessary with the removal of the ENGINE_FLAGS_MALLOCED distinction,
3423 this also allows the implementations to compile without using the
3424 internal engine_int.h header.
3427 *) Minor adjustment to "rand" code. RAND_get_rand_method() now returns a
3428 'const' value. Any code that should be able to modify a RAND_METHOD
3429 should already have non-const pointers to it (ie. they should only
3430 modify their own ones).
3433 *) Made a variety of little tweaks to the ENGINE code.
3434 - "atalla" and "ubsec" string definitions were moved from header files
3435 to C code. "nuron" string definitions were placed in variables
3436 rather than hard-coded - allowing parameterisation of these values
3437 later on via ctrl() commands.
3438 - Removed unused "#if 0"'d code.
3439 - Fixed engine list iteration code so it uses ENGINE_free() to release
3440 structural references.
3441 - Constified the RAND_METHOD element of ENGINE structures.
3442 - Constified various get/set functions as appropriate and added
3443 missing functions (including a catch-all ENGINE_cpy that duplicates
3444 all ENGINE values onto a new ENGINE except reference counts/state).
3445 - Removed NULL parameter checks in get/set functions. Setting a method
3446 or function to NULL is a way of cancelling out a previously set
3447 value. Passing a NULL ENGINE parameter is just plain stupid anyway
3448 and doesn't justify the extra error symbols and code.
3449 - Deprecate the ENGINE_FLAGS_MALLOCED define and move the area for
3450 flags from engine_int.h to engine.h.
3451 - Changed prototypes for ENGINE handler functions (init(), finish(),
3452 ctrl(), key-load functions, etc) to take an (ENGINE*) parameter.
3455 *) Implement binary inversion algorithm for BN_mod_inverse in addition
3456 to the algorithm using long division. The binary algorithm can be
3457 used only if the modulus is odd. On 32-bit systems, it is faster
3458 only for relatively small moduli (roughly 20-30% for 128-bit moduli,
3459 roughly 5-15% for 256-bit moduli), so we use it only for moduli
3460 up to 450 bits. In 64-bit environments, the binary algorithm
3461 appears to be advantageous for much longer moduli; here we use it
3462 for moduli up to 2048 bits.
3465 *) Rewrite CHOICE field setting in ASN1_item_ex_d2i(). The old code
3466 could not support the combine flag in choice fields.
3469 *) Add a 'copy_extensions' option to the 'ca' utility. This copies
3470 extensions from a certificate request to the certificate.
3473 *) Allow multiple 'certopt' and 'nameopt' options to be separated
3474 by commas. Add 'namopt' and 'certopt' options to the 'ca' config
3475 file: this allows the display of the certificate about to be
3476 signed to be customised, to allow certain fields to be included
3477 or excluded and extension details. The old system didn't display
3478 multicharacter strings properly, omitted fields not in the policy
3479 and couldn't display additional details such as extensions.
3482 *) Function EC_POINTs_mul for multiple scalar multiplication
3483 of an arbitrary number of elliptic curve points
3484 \sum scalars[i]*points[i],
3485 optionally including the generator defined for the EC_GROUP:
3486 scalar*generator + \sum scalars[i]*points[i].
3488 EC_POINT_mul is a simple wrapper function for the typical case
3489 that the point list has just one item (besides the optional
3493 *) First EC_METHODs for curves over GF(p):
3495 EC_GFp_simple_method() uses the basic BN_mod_mul and BN_mod_sqr
3496 operations and provides various method functions that can also
3497 operate with faster implementations of modular arithmetic.
3499 EC_GFp_mont_method() reuses most functions that are part of
3500 EC_GFp_simple_method, but uses Montgomery arithmetic.
3502 [Bodo Moeller; point addition and point doubling
3503 implementation directly derived from source code provided by
3504 Lenka Fibikova <fibikova@exp-math.uni-essen.de>]
3506 *) Framework for elliptic curves (crypto/ec/ec.h, crypto/ec/ec_lcl.h,
3507 crypto/ec/ec_lib.c):
3509 Curves are EC_GROUP objects (with an optional group generator)
3510 based on EC_METHODs that are built into the library.
3512 Points are EC_POINT objects based on EC_GROUP objects.
3514 Most of the framework would be able to handle curves over arbitrary
3515 finite fields, but as there are no obvious types for fields other
3516 than GF(p), some functions are limited to that for now.
3519 *) Add the -HTTP option to s_server. It is similar to -WWW, but requires
3520 that the file contains a complete HTTP response.
3523 *) Add the ec directory to mkdef.pl and mkfiles.pl. In mkdef.pl
3524 change the def and num file printf format specifier from "%-40sXXX"
3525 to "%-39s XXX". The latter will always guarantee a space after the
3526 field while the former will cause them to run together if the field
3527 is 40 of more characters long.
3530 *) Constify the cipher and digest 'method' functions and structures
3531 and modify related functions to take constant EVP_MD and EVP_CIPHER
3535 *) Hide BN_CTX structure details in bn_lcl.h instead of publishing them
3536 in <openssl/bn.h>. Also further increase BN_CTX_NUM to 32.
3539 *) Modify EVP_Digest*() routines so they now return values. Although the
3540 internal software routines can never fail additional hardware versions
3544 *) Clean up crypto/err/err.h and change some error codes to avoid conflicts:
3546 Previously ERR_R_FATAL was too small and coincided with ERR_LIB_PKCS7
3547 (= ERR_R_PKCS7_LIB); it is now 64 instead of 32.
3550 ERR_R_NESTED_ASN1_ERROR
3552 ERR_R_MISSING_ASN1_EOS
3553 were 4 .. 9, conflicting with
3554 ERR_LIB_RSA (= ERR_R_RSA_LIB)
3556 ERR_LIB_PEM (= ERR_R_PEM_LIB).
3557 They are now 58 .. 63 (i.e., just below ERR_R_FATAL).
3559 Add new error code 'ERR_R_INTERNAL_ERROR'.
3562 *) Don't overuse locks in crypto/err/err.c: For data retrieval, CRYPTO_r_lock
3566 *) New option '-subj arg' for 'openssl req' and 'openssl ca'. This
3567 sets the subject name for a new request or supersedes the
3568 subject name in a given request. Formats that can be parsed are
3569 'CN=Some Name, OU=myOU, C=IT'
3571 'CN=Some Name/OU=myOU/C=IT'.
3573 Add options '-batch' and '-verbose' to 'openssl req'.
3574 [Massimiliano Pala <madwolf@hackmasters.net>]
3576 *) Introduce the possibility to access global variables through
3577 functions on platform were that's the best way to handle exporting
3578 global variables in shared libraries. To enable this functionality,
3579 one must configure with "EXPORT_VAR_AS_FN" or defined the C macro
3580 "OPENSSL_EXPORT_VAR_AS_FUNCTION" in crypto/opensslconf.h (the latter
3581 is normally done by Configure or something similar).
3583 To implement a global variable, use the macro OPENSSL_IMPLEMENT_GLOBAL
3584 in the source file (foo.c) like this:
3586 OPENSSL_IMPLEMENT_GLOBAL(int,foo)=1;
3587 OPENSSL_IMPLEMENT_GLOBAL(double,bar);
3589 To declare a global variable, use the macros OPENSSL_DECLARE_GLOBAL
3590 and OPENSSL_GLOBAL_REF in the header file (foo.h) like this:
3592 OPENSSL_DECLARE_GLOBAL(int,foo);
3593 #define foo OPENSSL_GLOBAL_REF(foo)
3594 OPENSSL_DECLARE_GLOBAL(double,bar);
3595 #define bar OPENSSL_GLOBAL_REF(bar)
3597 The #defines are very important, and therefore so is including the
3598 header file everywhere where the defined globals are used.
3600 The macro OPENSSL_EXPORT_VAR_AS_FUNCTION also affects the definition
3601 of ASN.1 items, but that structure is a bit different.
3603 The largest change is in util/mkdef.pl which has been enhanced with
3604 better and easier to understand logic to choose which symbols should
3605 go into the Windows .def files as well as a number of fixes and code
3606 cleanup (among others, algorithm keywords are now sorted
3607 lexicographically to avoid constant rewrites).
3610 *) In BN_div() keep a copy of the sign of 'num' before writing the
3611 result to 'rm' because if rm==num the value will be overwritten
3612 and produce the wrong result if 'num' is negative: this caused
3613 problems with BN_mod() and BN_nnmod().
3616 *) Function OCSP_request_verify(). This checks the signature on an
3617 OCSP request and verifies the signer certificate. The signer
3618 certificate is just checked for a generic purpose and OCSP request
3622 *) Add OCSP_check_validity() function to check the validity of OCSP
3623 responses. OCSP responses are prepared in real time and may only
3624 be a few seconds old. Simply checking that the current time lies
3625 between thisUpdate and nextUpdate max reject otherwise valid responses
3626 caused by either OCSP responder or client clock inaccuracy. Instead
3627 we allow thisUpdate and nextUpdate to fall within a certain period of
3628 the current time. The age of the response can also optionally be
3629 checked. Two new options -validity_period and -status_age added to
3633 *) If signature or public key algorithm is unrecognized print out its
3634 OID rather that just UNKNOWN.
3637 *) Change OCSP_cert_to_id() to tolerate a NULL subject certificate and
3638 OCSP_cert_id_new() a NULL serialNumber. This allows a partial certificate
3639 ID to be generated from the issuer certificate alone which can then be
3640 passed to OCSP_id_issuer_cmp().
3643 *) New compilation option ASN1_ITEM_FUNCTIONS. This causes the new
3644 ASN1 modules to export functions returning ASN1_ITEM pointers
3645 instead of the ASN1_ITEM structures themselves. This adds several
3646 new macros which allow the underlying ASN1 function/structure to
3647 be accessed transparently. As a result code should not use ASN1_ITEM
3648 references directly (such as &X509_it) but instead use the relevant
3649 macros (such as ASN1_ITEM_rptr(X509)). This option is to allow
3650 use of the new ASN1 code on platforms where exporting structures
3651 is problematical (for example in shared libraries) but exporting
3652 functions returning pointers to structures is not.
3655 *) Add support for overriding the generation of SSL/TLS session IDs.
3656 These callbacks can be registered either in an SSL_CTX or per SSL.
3657 The purpose of this is to allow applications to control, if they wish,
3658 the arbitrary values chosen for use as session IDs, particularly as it
3659 can be useful for session caching in multiple-server environments. A
3660 command-line switch for testing this (and any client code that wishes
3661 to use such a feature) has been added to "s_server".
3662 [Geoff Thorpe, Lutz Jaenicke]
3664 *) Modify mkdef.pl to recognise and parse preprocessor conditionals
3665 of the form '#if defined(...) || defined(...) || ...' and
3666 '#if !defined(...) && !defined(...) && ...'. This also avoids
3667 the growing number of special cases it was previously handling.
3670 *) Make all configuration macros available for application by making
3671 sure they are available in opensslconf.h, by giving them names starting
3672 with "OPENSSL_" to avoid conflicts with other packages and by making
3673 sure e_os2.h will cover all platform-specific cases together with
3675 Additionally, it is now possible to define configuration/platform-
3676 specific names (called "system identities"). In the C code, these
3677 are prefixed with "OPENSSL_SYSNAME_". e_os2.h will create another
3678 macro with the name beginning with "OPENSSL_SYS_", which is determined
3679 from "OPENSSL_SYSNAME_*" or compiler-specific macros depending on
3683 *) New option -set_serial to 'req' and 'x509' this allows the serial
3684 number to use to be specified on the command line. Previously self
3685 signed certificates were hard coded with serial number 0 and the
3686 CA options of 'x509' had to use a serial number in a file which was
3690 *) New options to 'ca' utility to support V2 CRL entry extensions.
3691 Currently CRL reason, invalidity date and hold instruction are
3692 supported. Add new CRL extensions to V3 code and some new objects.
3695 *) New function EVP_CIPHER_CTX_set_padding() this is used to
3696 disable standard block padding (aka PKCS#5 padding) in the EVP
3697 API, which was previously mandatory. This means that the data is
3698 not padded in any way and so the total length much be a multiple
3699 of the block size, otherwise an error occurs.
3702 *) Initial (incomplete) OCSP SSL support.
3705 *) New function OCSP_parse_url(). This splits up a URL into its host,
3706 port and path components: primarily to parse OCSP URLs. New -url
3707 option to ocsp utility.
3710 *) New nonce behavior. The return value of OCSP_check_nonce() now
3711 reflects the various checks performed. Applications can decide
3712 whether to tolerate certain situations such as an absent nonce
3713 in a response when one was present in a request: the ocsp application
3714 just prints out a warning. New function OCSP_add1_basic_nonce()
3715 this is to allow responders to include a nonce in a response even if
3716 the request is nonce-less.
3719 *) Disable stdin buffering in load_cert (apps/apps.c) so that no certs are
3720 skipped when using openssl x509 multiple times on a single input file,
3721 e.g. "(openssl x509 -out cert1; openssl x509 -out cert2) <certs".
3724 *) Make ASN1_UTCTIME_set_string() and ASN1_GENERALIZEDTIME_set_string()
3725 set string type: to handle setting ASN1_TIME structures. Fix ca
3726 utility to correctly initialize revocation date of CRLs.
3729 *) New option SSL_OP_CIPHER_SERVER_PREFERENCE allows the server to override
3730 the clients preferred ciphersuites and rather use its own preferences.
3731 Should help to work around M$ SGC (Server Gated Cryptography) bug in
3732 Internet Explorer by ensuring unchanged hash method during stepup.
3733 (Also replaces the broken/deactivated SSL_OP_NON_EXPORT_FIRST option.)
3736 *) Make mkdef.pl recognise all DECLARE_ASN1 macros, change rijndael
3737 to aes and add a new 'exist' option to print out symbols that don't
3741 *) Additional options to ocsp utility to allow flags to be set and
3742 additional certificates supplied.
3745 *) Add the option -VAfile to 'openssl ocsp', so the user can give the
3746 OCSP client a number of certificate to only verify the response
3750 *) Update Rijndael code to version 3.0 and change EVP AES ciphers to
3751 handle the new API. Currently only ECB, CBC modes supported. Add new
3754 Add TLS AES ciphersuites as described in RFC3268, "Advanced
3755 Encryption Standard (AES) Ciphersuites for Transport Layer
3756 Security (TLS)". (In beta versions of OpenSSL 0.9.7, these were
3757 not enabled by default and were not part of the "ALL" ciphersuite
3758 alias because they were not yet official; they could be
3759 explicitly requested by specifying the "AESdraft" ciphersuite
3760 group alias. In the final release of OpenSSL 0.9.7, the group
3761 alias is called "AES" and is part of "ALL".)
3762 [Ben Laurie, Steve Henson, Bodo Moeller]
3764 *) New function OCSP_copy_nonce() to copy nonce value (if present) from
3765 request to response.
3768 *) Functions for OCSP responders. OCSP_request_onereq_count(),
3769 OCSP_request_onereq_get0(), OCSP_onereq_get0_id() and OCSP_id_get0_info()
3770 extract information from a certificate request. OCSP_response_create()
3771 creates a response and optionally adds a basic response structure.
3772 OCSP_basic_add1_status() adds a complete single response to a basic
3773 response and returns the OCSP_SINGLERESP structure just added (to allow
3774 extensions to be included for example). OCSP_basic_add1_cert() adds a
3775 certificate to a basic response and OCSP_basic_sign() signs a basic
3776 response with various flags. New helper functions ASN1_TIME_check()
3777 (checks validity of ASN1_TIME structure) and ASN1_TIME_to_generalizedtime()
3778 (converts ASN1_TIME to GeneralizedTime).
3781 *) Various new functions. EVP_Digest() combines EVP_Digest{Init,Update,Final}()
3782 in a single operation. X509_get0_pubkey_bitstr() extracts the public_key
3783 structure from a certificate. X509_pubkey_digest() digests the public_key
3784 contents: this is used in various key identifiers.
3787 *) Make sk_sort() tolerate a NULL argument.
3788 [Steve Henson reported by Massimiliano Pala <madwolf@comune.modena.it>]
3790 *) New OCSP verify flag OCSP_TRUSTOTHER. When set the "other" certificates
3791 passed by the function are trusted implicitly. If any of them signed the
3792 response then it is assumed to be valid and is not verified.
3795 *) In PKCS7_set_type() initialise content_type in PKCS7_ENC_CONTENT
3796 to data. This was previously part of the PKCS7 ASN1 code. This
3797 was causing problems with OpenSSL created PKCS#12 and PKCS#7 structures.
3798 [Steve Henson, reported by Kenneth R. Robinette
3799 <support@securenetterm.com>]
3801 *) Add CRYPTO_push_info() and CRYPTO_pop_info() calls to new ASN1
3802 routines: without these tracing memory leaks is very painful.
3803 Fix leaks in PKCS12 and PKCS7 routines.
3806 *) Make X509_time_adj() cope with the new behaviour of ASN1_TIME_new().
3807 Previously it initialised the 'type' argument to V_ASN1_UTCTIME which
3808 effectively meant GeneralizedTime would never be used. Now it
3809 is initialised to -1 but X509_time_adj() now has to check the value
3810 and use ASN1_TIME_set() if the value is not V_ASN1_UTCTIME or
3811 V_ASN1_GENERALIZEDTIME, without this it always uses GeneralizedTime.
3812 [Steve Henson, reported by Kenneth R. Robinette
3813 <support@securenetterm.com>]
3815 *) Fixes to BN_to_ASN1_INTEGER when bn is zero. This would previously
3816 result in a zero length in the ASN1_INTEGER structure which was
3817 not consistent with the structure when d2i_ASN1_INTEGER() was used
3818 and would cause ASN1_INTEGER_cmp() to fail. Enhance s2i_ASN1_INTEGER()
3819 to cope with hex and negative integers. Fix bug in i2a_ASN1_INTEGER()
3820 where it did not print out a minus for negative ASN1_INTEGER.
3823 *) Add summary printout to ocsp utility. The various functions which
3824 convert status values to strings have been renamed to:
3825 OCSP_response_status_str(), OCSP_cert_status_str() and
3826 OCSP_crl_reason_str() and are no longer static. New options
3827 to verify nonce values and to disable verification. OCSP response
3828 printout format cleaned up.
3831 *) Add additional OCSP certificate checks. These are those specified
3832 in RFC2560. This consists of two separate checks: the CA of the
3833 certificate being checked must either be the OCSP signer certificate
3834 or the issuer of the OCSP signer certificate. In the latter case the
3835 OCSP signer certificate must contain the OCSP signing extended key
3836 usage. This check is performed by attempting to match the OCSP
3837 signer or the OCSP signer CA to the issuerNameHash and issuerKeyHash
3838 in the OCSP_CERTID structures of the response.
3841 *) Initial OCSP certificate verification added to OCSP_basic_verify()
3842 and related routines. This uses the standard OpenSSL certificate
3843 verify routines to perform initial checks (just CA validity) and
3844 to obtain the certificate chain. Then additional checks will be
3845 performed on the chain. Currently the root CA is checked to see
3846 if it is explicitly trusted for OCSP signing. This is used to set
3847 a root CA as a global signing root: that is any certificate that
3848 chains to that CA is an acceptable OCSP signing certificate.
3851 *) New '-extfile ...' option to 'openssl ca' for reading X.509v3
3852 extensions from a separate configuration file.
3853 As when reading extensions from the main configuration file,
3854 the '-extensions ...' option may be used for specifying the
3856 [Massimiliano Pala <madwolf@comune.modena.it>]
3858 *) New OCSP utility. Allows OCSP requests to be generated or
3859 read. The request can be sent to a responder and the output
3860 parsed, outputed or printed in text form. Not complete yet:
3861 still needs to check the OCSP response validity.
3864 *) New subcommands for 'openssl ca':
3865 'openssl ca -status <serial>' prints the status of the cert with
3866 the given serial number (according to the index file).
3867 'openssl ca -updatedb' updates the expiry status of certificates
3869 [Massimiliano Pala <madwolf@comune.modena.it>]
3871 *) New '-newreq-nodes' command option to CA.pl. This is like
3872 '-newreq', but calls 'openssl req' with the '-nodes' option
3873 so that the resulting key is not encrypted.
3874 [Damien Miller <djm@mindrot.org>]
3876 *) New configuration for the GNU Hurd.
3877 [Jonathan Bartlett <johnnyb@wolfram.com> via Richard Levitte]
3879 *) Initial code to implement OCSP basic response verify. This
3880 is currently incomplete. Currently just finds the signer's
3881 certificate and verifies the signature on the response.
3884 *) New SSLeay_version code SSLEAY_DIR to determine the compiled-in
3885 value of OPENSSLDIR. This is available via the new '-d' option
3886 to 'openssl version', and is also included in 'openssl version -a'.
3889 *) Allowing defining memory allocation callbacks that will be given
3890 file name and line number information in additional arguments
3891 (a const char* and an int). The basic functionality remains, as
3892 well as the original possibility to just replace malloc(),
3893 realloc() and free() by functions that do not know about these
3894 additional arguments. To register and find out the current
3895 settings for extended allocation functions, the following
3896 functions are provided:
3898 CRYPTO_set_mem_ex_functions
3899 CRYPTO_set_locked_mem_ex_functions
3900 CRYPTO_get_mem_ex_functions
3901 CRYPTO_get_locked_mem_ex_functions
3903 These work the same way as CRYPTO_set_mem_functions and friends.
3904 CRYPTO_get_[locked_]mem_functions now writes 0 where such an
3905 extended allocation function is enabled.
3906 Similarly, CRYPTO_get_[locked_]mem_ex_functions writes 0 where
3907 a conventional allocation function is enabled.
3908 [Richard Levitte, Bodo Moeller]
3910 *) Finish off removing the remaining LHASH function pointer casts.
3911 There should no longer be any prototype-casting required when using
3912 the LHASH abstraction, and any casts that remain are "bugs". See
3913 the callback types and macros at the head of lhash.h for details
3914 (and "OBJ_cleanup" in crypto/objects/obj_dat.c as an example).
3917 *) Add automatic query of EGD sockets in RAND_poll() for the unix variant.
3918 If /dev/[u]random devices are not available or do not return enough
3919 entropy, EGD style sockets (served by EGD or PRNGD) will automatically
3921 The locations /var/run/egd-pool, /dev/egd-pool, /etc/egd-pool, and
3922 /etc/entropy will be queried once each in this sequence, quering stops
3923 when enough entropy was collected without querying more sockets.
3926 *) Change the Unix RAND_poll() variant to be able to poll several
3927 random devices, as specified by DEVRANDOM, until a sufficient amount
3928 of data has been collected. We spend at most 10 ms on each file
3929 (select timeout) and read in non-blocking mode. DEVRANDOM now
3930 defaults to the list "/dev/urandom", "/dev/random", "/dev/srandom"
3931 (previously it was just the string "/dev/urandom"), so on typical
3932 platforms the 10 ms delay will never occur.
3933 Also separate out the Unix variant to its own file, rand_unix.c.
3934 For VMS, there's a currently-empty rand_vms.c.
3937 *) Move OCSP client related routines to ocsp_cl.c. These
3938 provide utility functions which an application needing
3939 to issue a request to an OCSP responder and analyse the
3940 response will typically need: as opposed to those which an
3941 OCSP responder itself would need which will be added later.
3943 OCSP_request_sign() signs an OCSP request with an API similar
3944 to PKCS7_sign(). OCSP_response_status() returns status of OCSP
3945 response. OCSP_response_get1_basic() extracts basic response
3946 from response. OCSP_resp_find_status(): finds and extracts status
3947 information from an OCSP_CERTID structure (which will be created
3948 when the request structure is built). These are built from lower
3949 level functions which work on OCSP_SINGLERESP structures but
3950 wont normally be used unless the application wishes to examine
3951 extensions in the OCSP response for example.
3953 Replace nonce routines with a pair of functions.
3954 OCSP_request_add1_nonce() adds a nonce value and optionally
3955 generates a random value. OCSP_check_nonce() checks the
3956 validity of the nonce in an OCSP response.
3959 *) Change function OCSP_request_add() to OCSP_request_add0_id().
3960 This doesn't copy the supplied OCSP_CERTID and avoids the
3961 need to free up the newly created id. Change return type
3962 to OCSP_ONEREQ to return the internal OCSP_ONEREQ structure.
3963 This can then be used to add extensions to the request.
3964 Deleted OCSP_request_new(), since most of its functionality
3965 is now in OCSP_REQUEST_new() (and the case insensitive name
3966 clash) apart from the ability to set the request name which
3967 will be added elsewhere.
3970 *) Update OCSP API. Remove obsolete extensions argument from
3971 various functions. Extensions are now handled using the new
3972 OCSP extension code. New simple OCSP HTTP function which
3973 can be used to send requests and parse the response.
3976 *) Fix the PKCS#7 (S/MIME) code to work with new ASN1. Two new
3977 ASN1_ITEM structures help with sign and verify. PKCS7_ATTR_SIGN
3978 uses the special reorder version of SET OF to sort the attributes
3979 and reorder them to match the encoded order. This resolves a long
3980 standing problem: a verify on a PKCS7 structure just after signing
3981 it used to fail because the attribute order did not match the
3982 encoded order. PKCS7_ATTR_VERIFY does not reorder the attributes:
3983 it uses the received order. This is necessary to tolerate some broken
3984 software that does not order SET OF. This is handled by encoding
3985 as a SEQUENCE OF but using implicit tagging (with UNIVERSAL class)
3986 to produce the required SET OF.
3989 *) Have mk1mf.pl generate the macros OPENSSL_BUILD_SHLIBCRYPTO and
3990 OPENSSL_BUILD_SHLIBSSL and use them appropriately in the header
3991 files to get correct declarations of the ASN.1 item variables.
3994 *) Rewrite of PKCS#12 code to use new ASN1 functionality. Replace many
3995 PKCS#12 macros with real functions. Fix two unrelated ASN1 bugs:
3996 asn1_check_tlen() would sometimes attempt to use 'ctx' when it was
3997 NULL and ASN1_TYPE was not dereferenced properly in asn1_ex_c2i().
3998 New ASN1 macro: DECLARE_ASN1_ITEM() which just declares the relevant
3999 ASN1_ITEM and no wrapper functions.
4002 *) New functions or ASN1_item_d2i_fp() and ASN1_item_d2i_bio(). These
4003 replace the old function pointer based I/O routines. Change most of
4004 the *_d2i_bio() and *_d2i_fp() functions to use these.
4007 *) Enhance mkdef.pl to be more accepting about spacing in C preprocessor
4008 lines, recognice more "algorithms" that can be deselected, and make
4009 it complain about algorithm deselection that isn't recognised.
4012 *) New ASN1 functions to handle dup, sign, verify, digest, pack and
4013 unpack operations in terms of ASN1_ITEM. Modify existing wrappers
4014 to use new functions. Add NO_ASN1_OLD which can be set to remove
4015 some old style ASN1 functions: this can be used to determine if old
4016 code will still work when these eventually go away.
4019 *) New extension functions for OCSP structures, these follow the
4020 same conventions as certificates and CRLs.
4023 *) New function X509V3_add1_i2d(). This automatically encodes and
4024 adds an extension. Its behaviour can be customised with various
4025 flags to append, replace or delete. Various wrappers added for
4026 certifcates and CRLs.
4029 *) Fix to avoid calling the underlying ASN1 print routine when
4030 an extension cannot be parsed. Correct a typo in the
4031 OCSP_SERVICELOC extension. Tidy up print OCSP format.
4034 *) Make mkdef.pl parse some of the ASN1 macros and add apropriate
4035 entries for variables.
4038 *) Add functionality to apps/openssl.c for detecting locking
4039 problems: As the program is single-threaded, all we have
4040 to do is register a locking callback using an array for
4041 storing which locks are currently held by the program.
4044 *) Use a lock around the call to CRYPTO_get_ex_new_index() in
4045 SSL_get_ex_data_X509_STORE_idx(), which is used in
4046 ssl_verify_cert_chain() and thus can be called at any time
4047 during TLS/SSL handshakes so that thread-safety is essential.
4048 Unfortunately, the ex_data design is not at all suited
4049 for multi-threaded use, so it probably should be abolished.
4052 *) Added Broadcom "ubsec" ENGINE to OpenSSL.
4053 [Broadcom, tweaked and integrated by Geoff Thorpe]
4055 *) Move common extension printing code to new function
4056 X509V3_print_extensions(). Reorganise OCSP print routines and
4057 implement some needed OCSP ASN1 functions. Add OCSP extensions.
4060 *) New function X509_signature_print() to remove duplication in some
4064 *) Add a special meaning when SET OF and SEQUENCE OF flags are both
4065 set (this was treated exactly the same as SET OF previously). This
4066 is used to reorder the STACK representing the structure to match the
4067 encoding. This will be used to get round a problem where a PKCS7
4068 structure which was signed could not be verified because the STACK
4069 order did not reflect the encoded order.
4072 *) Reimplement the OCSP ASN1 module using the new code.
4075 *) Update the X509V3 code to permit the use of an ASN1_ITEM structure
4076 for its ASN1 operations. The old style function pointers still exist
4077 for now but they will eventually go away.
4080 *) Merge in replacement ASN1 code from the ASN1 branch. This almost
4081 completely replaces the old ASN1 functionality with a table driven
4082 encoder and decoder which interprets an ASN1_ITEM structure describing
4083 the ASN1 module. Compatibility with the existing ASN1 API (i2d,d2i) is
4084 largely maintained. Almost all of the old asn1_mac.h macro based ASN1
4085 has also been converted to the new form.
4088 *) Change BN_mod_exp_recp so that negative moduli are tolerated
4089 (the sign is ignored). Similarly, ignore the sign in BN_MONT_CTX_set
4090 so that BN_mod_exp_mont and BN_mod_exp_mont_word work
4091 for negative moduli.
4094 *) Fix BN_uadd and BN_usub: Always return non-negative results instead
4095 of not touching the result's sign bit.
4098 *) BN_div bugfix: If the result is 0, the sign (res->neg) must not be
4102 *) Changed the LHASH code to use prototypes for callbacks, and created
4103 macros to declare and implement thin (optionally static) functions
4104 that provide type-safety and avoid function pointer casting for the
4105 type-specific callbacks.
4108 *) Added Kerberos Cipher Suites to be used with TLS, as written in
4110 [Veers Staats <staatsvr@asc.hpc.mil>,
4111 Jeffrey Altman <jaltman@columbia.edu>, via Richard Levitte]
4113 *) Reformat the FAQ so the different questions and answers can be divided
4114 in sections depending on the subject.
4117 *) Have the zlib compression code load ZLIB.DLL dynamically under
4121 *) New function BN_mod_sqrt for computing square roots modulo a prime
4122 (using the probabilistic Tonelli-Shanks algorithm unless
4123 p == 3 (mod 4) or p == 5 (mod 8), which are cases that can
4124 be handled deterministically).
4125 [Lenka Fibikova <fibikova@exp-math.uni-essen.de>, Bodo Moeller]
4127 *) Make BN_mod_inverse faster by explicitly handling small quotients
4128 in the Euclid loop. (Speed gain about 20% for small moduli [256 or
4129 512 bits], about 30% for larger ones [1024 or 2048 bits].)
4132 *) New function BN_kronecker.
4135 *) Fix BN_gcd so that it works on negative inputs; the result is
4136 positive unless both parameters are zero.
4137 Previously something reasonably close to an infinite loop was
4138 possible because numbers could be growing instead of shrinking
4139 in the implementation of Euclid's algorithm.
4142 *) Fix BN_is_word() and BN_is_one() macros to take into account the
4143 sign of the number in question.
4145 Fix BN_is_word(a,w) to work correctly for w == 0.
4147 The old BN_is_word(a,w) macro is now called BN_abs_is_word(a,w)
4148 because its test if the absolute value of 'a' equals 'w'.
4149 Note that BN_abs_is_word does *not* handle w == 0 reliably;
4150 it exists mostly for use in the implementations of BN_is_zero(),
4151 BN_is_one(), and BN_is_word().
4154 *) New function BN_swap.
4157 *) Use BN_nnmod instead of BN_mod in crypto/bn/bn_exp.c so that
4158 the exponentiation functions are more likely to produce reasonable
4159 results on negative inputs.
4162 *) Change BN_mod_mul so that the result is always non-negative.
4163 Previously, it could be negative if one of the factors was negative;
4164 I don't think anyone really wanted that behaviour.
4167 *) Move BN_mod_... functions into new file crypto/bn/bn_mod.c
4168 (except for exponentiation, which stays in crypto/bn/bn_exp.c,
4169 and BN_mod_mul_reciprocal, which stays in crypto/bn/bn_recp.c)
4170 and add new functions:
4179 BN_mod_lshift1_quick
4183 These functions always generate non-negative results.
4185 BN_nnmod otherwise is like BN_mod (if BN_mod computes a remainder r
4186 such that |m| < r < 0, BN_nnmod will output rem + |m| instead).
4188 BN_mod_XXX_quick(r, a, [b,] m) generates the same result as
4189 BN_mod_XXX(r, a, [b,] m, ctx), but requires that a [and b]
4190 be reduced modulo m.
4191 [Lenka Fibikova <fibikova@exp-math.uni-essen.de>, Bodo Moeller]
4194 The following entry accidentily appeared in the CHANGES file
4195 distributed with OpenSSL 0.9.7. The modifications described in
4196 it do *not* apply to OpenSSL 0.9.7.
4198 *) Remove a few calls to bn_wexpand() in BN_sqr() (the one in there
4199 was actually never needed) and in BN_mul(). The removal in BN_mul()
4200 required a small change in bn_mul_part_recursive() and the addition
4201 of the functions bn_cmp_part_words(), bn_sub_part_words() and
4202 bn_add_part_words(), which do the same thing as bn_cmp_words(),
4203 bn_sub_words() and bn_add_words() except they take arrays with
4208 *) In 'openssl passwd', verify passwords read from the terminal
4209 unless the '-salt' option is used (which usually means that
4210 verification would just waste user's time since the resulting
4211 hash is going to be compared with some given password hash)
4212 or the new '-noverify' option is used.
4214 This is an incompatible change, but it does not affect
4215 non-interactive use of 'openssl passwd' (passwords on the command
4216 line, '-stdin' option, '-in ...' option) and thus should not
4220 *) Remove all references to RSAref, since there's no more need for it.
4223 *) Make DSO load along a path given through an environment variable
4224 (SHLIB_PATH) with shl_load().
4227 *) Constify the ENGINE code as a result of BIGNUM constification.
4228 Also constify the RSA code and most things related to it. In a
4229 few places, most notable in the depth of the ASN.1 code, ugly
4230 casts back to non-const were required (to be solved at a later
4234 *) Make it so the openssl application has all engines loaded by default.
4237 *) Constify the BIGNUM routines a little more.
4240 *) Add the following functions:
4242 ENGINE_load_cswift()
4244 ENGINE_load_atalla()
4246 ENGINE_load_builtin_engines()
4248 That way, an application can itself choose if external engines that
4249 are built-in in OpenSSL shall ever be used or not. The benefit is
4250 that applications won't have to be linked with libdl or other dso
4251 libraries unless it's really needed.
4253 Changed 'openssl engine' to load all engines on demand.
4254 Changed the engine header files to avoid the duplication of some
4255 declarations (they differed!).
4258 *) 'openssl engine' can now list capabilities.
4261 *) Better error reporting in 'openssl engine'.
4264 *) Never call load_dh_param(NULL) in s_server.
4267 *) Add engine application. It can currently list engines by name and
4268 identity, and test if they are actually available.
4271 *) Improve RPM specification file by forcing symbolic linking and making
4272 sure the installed documentation is also owned by root.root.
4273 [Damien Miller <djm@mindrot.org>]
4275 *) Give the OpenSSL applications more possibilities to make use of
4276 keys (public as well as private) handled by engines.
4279 *) Add OCSP code that comes from CertCo.
4282 *) Add VMS support for the Rijndael code.
4285 *) Added untested support for Nuron crypto accelerator.
4288 *) Add support for external cryptographic devices. This code was
4289 previously distributed separately as the "engine" branch.
4290 [Geoff Thorpe, Richard Levitte]
4292 *) Rework the filename-translation in the DSO code. It is now possible to
4293 have far greater control over how a "name" is turned into a filename
4294 depending on the operating environment and any oddities about the
4295 different shared library filenames on each system.
4298 *) Support threads on FreeBSD-elf in Configure.
4301 *) Fix for SHA1 assembly problem with MASM: it produces
4302 warnings about corrupt line number information when assembling
4303 with debugging information. This is caused by the overlapping
4305 [Bernd Matthes <mainbug@celocom.de>, Steve Henson]
4308 NCONF_get_number() has no error checking at all. As a replacement,
4309 NCONF_get_number_e() is defined (_e for "error checking") and is
4310 promoted strongly. The old NCONF_get_number is kept around for
4311 binary backward compatibility.
4312 Make it possible for methods to load from something other than a BIO,
4313 by providing a function pointer that is given a name instead of a BIO.
4314 For example, this could be used to load configuration data from an
4318 *) Fix for non blocking accept BIOs. Added new I/O special reason
4319 BIO_RR_ACCEPT to cover this case. Previously use of accept BIOs
4320 with non blocking I/O was not possible because no retry code was
4321 implemented. Also added new SSL code SSL_WANT_ACCEPT to cover
4325 *) Added the beginnings of Rijndael support.
4328 *) Fix for bug in DirectoryString mask setting. Add support for
4329 X509_NAME_print_ex() in 'req' and X509_print_ex() function
4330 to allow certificate printing to more controllable, additional
4331 'certopt' option to 'x509' to allow new printing options to be
4335 *) Clean old EAY MD5 hack from e_os.h.
4338 Changes between 0.9.6l and 0.9.6m [17 Mar 2004]
4340 *) Fix null-pointer assignment in do_change_cipher_spec() revealed
4341 by using the Codenomicon TLS Test Tool (CVE-2004-0079)
4342 [Joe Orton, Steve Henson]
4344 Changes between 0.9.6k and 0.9.6l [04 Nov 2003]
4346 *) Fix additional bug revealed by the NISCC test suite:
4348 Stop bug triggering large recursion when presented with
4349 certain ASN.1 tags (CVE-2003-0851)
4352 Changes between 0.9.6j and 0.9.6k [30 Sep 2003]
4354 *) Fix various bugs revealed by running the NISCC test suite:
4356 Stop out of bounds reads in the ASN1 code when presented with
4357 invalid tags (CVE-2003-0543 and CVE-2003-0544).
4359 If verify callback ignores invalid public key errors don't try to check
4360 certificate signature with the NULL public key.
4364 *) In ssl3_accept() (ssl/s3_srvr.c) only accept a client certificate
4365 if the server requested one: as stated in TLS 1.0 and SSL 3.0
4369 *) In ssl3_get_client_hello() (ssl/s3_srvr.c), tolerate additional
4370 extra data after the compression methods not only for TLS 1.0
4371 but also for SSL 3.0 (as required by the specification).
4372 [Bodo Moeller; problem pointed out by Matthias Loepfe]
4374 *) Change X509_certificate_type() to mark the key as exported/exportable
4375 when it's 512 *bits* long, not 512 bytes.
4378 Changes between 0.9.6i and 0.9.6j [10 Apr 2003]
4380 *) Countermeasure against the Klima-Pokorny-Rosa extension of
4381 Bleichbacher's attack on PKCS #1 v1.5 padding: treat
4382 a protocol version number mismatch like a decryption error
4383 in ssl3_get_client_key_exchange (ssl/s3_srvr.c).
4386 *) Turn on RSA blinding by default in the default implementation
4387 to avoid a timing attack. Applications that don't want it can call
4388 RSA_blinding_off() or use the new flag RSA_FLAG_NO_BLINDING.
4389 They would be ill-advised to do so in most cases.
4390 [Ben Laurie, Steve Henson, Geoff Thorpe, Bodo Moeller]
4392 *) Change RSA blinding code so that it works when the PRNG is not
4393 seeded (in this case, the secret RSA exponent is abused as
4394 an unpredictable seed -- if it is not unpredictable, there
4395 is no point in blinding anyway). Make RSA blinding thread-safe
4396 by remembering the creator's thread ID in rsa->blinding and
4397 having all other threads use local one-time blinding factors
4398 (this requires more computation than sharing rsa->blinding, but
4399 avoids excessive locking; and if an RSA object is not shared
4400 between threads, blinding will still be very fast).
4403 Changes between 0.9.6h and 0.9.6i [19 Feb 2003]
4405 *) In ssl3_get_record (ssl/s3_pkt.c), minimize information leaked
4406 via timing by performing a MAC computation even if incorrrect
4407 block cipher padding has been found. This is a countermeasure
4408 against active attacks where the attacker has to distinguish
4409 between bad padding and a MAC verification error. (CVE-2003-0078)
4411 [Bodo Moeller; problem pointed out by Brice Canvel (EPFL),
4412 Alain Hiltgen (UBS), Serge Vaudenay (EPFL), and
4413 Martin Vuagnoux (EPFL, Ilion)]
4415 Changes between 0.9.6g and 0.9.6h [5 Dec 2002]
4417 *) New function OPENSSL_cleanse(), which is used to cleanse a section of
4418 memory from it's contents. This is done with a counter that will
4419 place alternating values in each byte. This can be used to solve
4420 two issues: 1) the removal of calls to memset() by highly optimizing
4421 compilers, and 2) cleansing with other values than 0, since those can
4422 be read through on certain media, for example a swap space on disk.
4425 *) Bugfix: client side session caching did not work with external caching,
4426 because the session->cipher setting was not restored when reloading
4427 from the external cache. This problem was masked, when
4428 SSL_OP_NETSCAPE_REUSE_CIPHER_CHANGE_BUG (part of SSL_OP_ALL) was set.
4429 (Found by Steve Haslam <steve@araqnid.ddts.net>.)
4432 *) Fix client_certificate (ssl/s2_clnt.c): The permissible total
4433 length of the REQUEST-CERTIFICATE message is 18 .. 34, not 17 .. 33.
4434 [Zeev Lieber <zeev-l@yahoo.com>]
4436 *) Undo an undocumented change introduced in 0.9.6e which caused
4437 repeated calls to OpenSSL_add_all_ciphers() and
4438 OpenSSL_add_all_digests() to be ignored, even after calling
4442 *) Change the default configuration reader to deal with last line not
4443 being properly terminated.
4446 *) Change X509_NAME_cmp() so it applies the special rules on handling
4447 DN values that are of type PrintableString, as well as RDNs of type
4448 emailAddress where the value has the type ia5String.
4449 [stefank@valicert.com via Richard Levitte]
4451 *) Add a SSL_SESS_CACHE_NO_INTERNAL_STORE flag to take over half
4452 the job SSL_SESS_CACHE_NO_INTERNAL_LOOKUP was inconsistently
4453 doing, define a new flag (SSL_SESS_CACHE_NO_INTERNAL) to be
4454 the bitwise-OR of the two for use by the majority of applications
4455 wanting this behaviour, and update the docs. The documented
4456 behaviour and actual behaviour were inconsistent and had been
4457 changing anyway, so this is more a bug-fix than a behavioural
4459 [Geoff Thorpe, diagnosed by Nadav Har'El]
4461 *) Don't impose a 16-byte length minimum on session IDs in ssl/s3_clnt.c
4462 (the SSL 3.0 and TLS 1.0 specifications allow any length up to 32 bytes).
4465 *) Fix initialization code race conditions in
4466 SSLv23_method(), SSLv23_client_method(), SSLv23_server_method(),
4467 SSLv2_method(), SSLv2_client_method(), SSLv2_server_method(),
4468 SSLv3_method(), SSLv3_client_method(), SSLv3_server_method(),
4469 TLSv1_method(), TLSv1_client_method(), TLSv1_server_method(),
4470 ssl2_get_cipher_by_char(),
4471 ssl3_get_cipher_by_char().
4472 [Patrick McCormick <patrick@tellme.com>, Bodo Moeller]
4474 *) Reorder cleanup sequence in SSL_CTX_free(): only remove the ex_data after
4475 the cached sessions are flushed, as the remove_cb() might use ex_data
4476 contents. Bug found by Sam Varshavchik <mrsam@courier-mta.com>
4477 (see [openssl.org #212]).
4478 [Geoff Thorpe, Lutz Jaenicke]
4480 *) Fix typo in OBJ_txt2obj which incorrectly passed the content
4481 length, instead of the encoding length to d2i_ASN1_OBJECT.
4484 Changes between 0.9.6f and 0.9.6g [9 Aug 2002]
4486 *) [In 0.9.6g-engine release:]
4487 Fix crypto/engine/vendor_defns/cswift.h for WIN32 (use '_stdcall').
4488 [Lynn Gazis <lgazis@rainbow.com>]
4490 Changes between 0.9.6e and 0.9.6f [8 Aug 2002]
4492 *) Fix ASN1 checks. Check for overflow by comparing with LONG_MAX
4493 and get fix the header length calculation.
4494 [Florian Weimer <Weimer@CERT.Uni-Stuttgart.DE>,
4495 Alon Kantor <alonk@checkpoint.com> (and others),
4498 *) Use proper error handling instead of 'assertions' in buffer
4499 overflow checks added in 0.9.6e. This prevents DoS (the
4500 assertions could call abort()).
4501 [Arne Ansper <arne@ats.cyber.ee>, Bodo Moeller]
4503 Changes between 0.9.6d and 0.9.6e [30 Jul 2002]
4505 *) Add various sanity checks to asn1_get_length() to reject
4506 the ASN1 length bytes if they exceed sizeof(long), will appear
4507 negative or the content length exceeds the length of the
4509 [Steve Henson, Adi Stav <stav@mercury.co.il>, James Yonan <jim@ntlp.com>]
4511 *) Fix cipher selection routines: ciphers without encryption had no flags
4512 for the cipher strength set and where therefore not handled correctly
4513 by the selection routines (PR #130).
4516 *) Fix EVP_dsa_sha macro.
4520 SSL_OP_DONT_INSERT_EMPTY_FRAGMENTS
4521 for disabling the SSL 3.0/TLS 1.0 CBC vulnerability countermeasure
4522 that was added in OpenSSL 0.9.6d.
4524 As the countermeasure turned out to be incompatible with some
4525 broken SSL implementations, the new option is part of SSL_OP_ALL.
4526 SSL_OP_ALL is usually employed when compatibility with weird SSL
4527 implementations is desired (e.g. '-bugs' option to 's_client' and
4528 's_server'), so the new option is automatically set in many
4532 *) Changes in security patch:
4534 Changes marked "(CHATS)" were sponsored by the Defense Advanced
4535 Research Projects Agency (DARPA) and Air Force Research Laboratory,
4536 Air Force Materiel Command, USAF, under agreement number
4539 *) Add various sanity checks to asn1_get_length() to reject
4540 the ASN1 length bytes if they exceed sizeof(long), will appear
4541 negative or the content length exceeds the length of the
4542 supplied buffer. (CVE-2002-0659)
4543 [Steve Henson, Adi Stav <stav@mercury.co.il>, James Yonan <jim@ntlp.com>]
4545 *) Assertions for various potential buffer overflows, not known to
4547 [Ben Laurie (CHATS)]
4549 *) Various temporary buffers to hold ASCII versions of integers were
4550 too small for 64 bit platforms. (CVE-2002-0655)
4551 [Matthew Byng-Maddick <mbm@aldigital.co.uk> and Ben Laurie (CHATS)>
4553 *) Remote buffer overflow in SSL3 protocol - an attacker could
4554 supply an oversized session ID to a client. (CVE-2002-0656)
4555 [Ben Laurie (CHATS)]
4557 *) Remote buffer overflow in SSL2 protocol - an attacker could
4558 supply an oversized client master key. (CVE-2002-0656)
4559 [Ben Laurie (CHATS)]
4561 Changes between 0.9.6c and 0.9.6d [9 May 2002]
4563 *) Fix crypto/asn1/a_sign.c so that 'parameters' is omitted (not
4564 encoded as NULL) with id-dsa-with-sha1.
4565 [Nils Larsch <nla@trustcenter.de>; problem pointed out by Bodo Moeller]
4567 *) Check various X509_...() return values in apps/req.c.
4568 [Nils Larsch <nla@trustcenter.de>]
4570 *) Fix BASE64 decode (EVP_DecodeUpdate) for data with CR/LF ended lines:
4571 an end-of-file condition would erronously be flagged, when the CRLF
4572 was just at the end of a processed block. The bug was discovered when
4573 processing data through a buffering memory BIO handing the data to a
4574 BASE64-decoding BIO. Bug fund and patch submitted by Pavel Tsekov
4575 <ptsekov@syntrex.com> and Nedelcho Stanev.
4578 *) Implement a countermeasure against a vulnerability recently found
4579 in CBC ciphersuites in SSL 3.0/TLS 1.0: Send an empty fragment
4580 before application data chunks to avoid the use of known IVs
4581 with data potentially chosen by the attacker.
4584 *) Fix length checks in ssl3_get_client_hello().
4587 *) TLS/SSL library bugfix: use s->s3->in_read_app_data differently
4588 to prevent ssl3_read_internal() from incorrectly assuming that
4589 ssl3_read_bytes() found application data while handshake
4590 processing was enabled when in fact s->s3->in_read_app_data was
4591 merely automatically cleared during the initial handshake.
4592 [Bodo Moeller; problem pointed out by Arne Ansper <arne@ats.cyber.ee>]
4594 *) Fix object definitions for Private and Enterprise: they were not
4595 recognized in their shortname (=lowercase) representation. Extend
4596 obj_dat.pl to issue an error when using undefined keywords instead
4597 of silently ignoring the problem (Svenning Sorensen
4598 <sss@sss.dnsalias.net>).
4601 *) Fix DH_generate_parameters() so that it works for 'non-standard'
4602 generators, i.e. generators other than 2 and 5. (Previously, the
4603 code did not properly initialise the 'add' and 'rem' values to
4604 BN_generate_prime().)
4606 In the new general case, we do not insist that 'generator' is
4607 actually a primitive root: This requirement is rather pointless;
4608 a generator of the order-q subgroup is just as good, if not
4612 *) Map new X509 verification errors to alerts. Discovered and submitted by
4613 Tom Wu <tom@arcot.com>.
4616 *) Fix ssl3_pending() (ssl/s3_lib.c) to prevent SSL_pending() from
4617 returning non-zero before the data has been completely received
4618 when using non-blocking I/O.
4619 [Bodo Moeller; problem pointed out by John Hughes]
4621 *) Some of the ciphers missed the strength entry (SSL_LOW etc).
4622 [Ben Laurie, Lutz Jaenicke]
4624 *) Fix bug in SSL_clear(): bad sessions were not removed (found by
4625 Yoram Zahavi <YoramZ@gilian.com>).
4628 *) Add information about CygWin 1.3 and on, and preserve proper
4629 configuration for the versions before that.
4630 [Corinna Vinschen <vinschen@redhat.com> and Richard Levitte]
4632 *) Make removal from session cache (SSL_CTX_remove_session()) more robust:
4633 check whether we deal with a copy of a session and do not delete from
4634 the cache in this case. Problem reported by "Izhar Shoshani Levi"
4635 <izhar@checkpoint.com>.
4638 *) Do not store session data into the internal session cache, if it
4639 is never intended to be looked up (SSL_SESS_CACHE_NO_INTERNAL_LOOKUP
4640 flag is set). Proposed by Aslam <aslam@funk.com>.
4643 *) Have ASN1_BIT_STRING_set_bit() really clear a bit when the requested
4647 *) [In 0.9.6d-engine release:]
4648 Fix a crashbug and a logic bug in hwcrhk_load_pubkey().
4649 [Toomas Kiisk <vix@cyber.ee> via Richard Levitte]
4651 *) Add the configuration target linux-s390x.
4652 [Neale Ferguson <Neale.Ferguson@SoftwareAG-USA.com> via Richard Levitte]
4654 *) The earlier bugfix for the SSL3_ST_SW_HELLO_REQ_C case of
4655 ssl3_accept (ssl/s3_srvr.c) incorrectly used a local flag
4656 variable as an indication that a ClientHello message has been
4657 received. As the flag value will be lost between multiple
4658 invocations of ssl3_accept when using non-blocking I/O, the
4659 function may not be aware that a handshake has actually taken
4660 place, thus preventing a new session from being added to the
4663 To avoid this problem, we now set s->new_session to 2 instead of
4664 using a local variable.
4665 [Lutz Jaenicke, Bodo Moeller]
4667 *) Bugfix: Return -1 from ssl3_get_server_done (ssl3/s3_clnt.c)
4668 if the SSL_R_LENGTH_MISMATCH error is detected.
4669 [Geoff Thorpe, Bodo Moeller]
4671 *) New 'shared_ldflag' column in Configure platform table.
4674 *) Fix EVP_CIPHER_mode macro.
4675 ["Dan S. Camper" <dan@bti.net>]
4677 *) Fix ssl3_read_bytes (ssl/s3_pkt.c): To ignore messages of unknown
4678 type, we must throw them away by setting rr->length to 0.
4679 [D P Chang <dpc@qualys.com>]
4681 Changes between 0.9.6b and 0.9.6c [21 dec 2001]
4683 *) Fix BN_rand_range bug pointed out by Dominikus Scherkl
4684 <Dominikus.Scherkl@biodata.com>. (The previous implementation
4685 worked incorrectly for those cases where range = 10..._2 and
4686 3*range is two bits longer than range.)
4689 *) Only add signing time to PKCS7 structures if it is not already
4693 *) Fix crypto/objects/objects.h: "ld-ce" should be "id-ce",
4694 OBJ_ld_ce should be OBJ_id_ce.
4695 Also some ip-pda OIDs in crypto/objects/objects.txt were
4696 incorrect (cf. RFC 3039).
4697 [Matt Cooper, Frederic Giudicelli, Bodo Moeller]
4699 *) Release CRYPTO_LOCK_DYNLOCK when CRYPTO_destroy_dynlockid()
4700 returns early because it has nothing to do.
4701 [Andy Schneider <andy.schneider@bjss.co.uk>]
4703 *) [In 0.9.6c-engine release:]
4704 Fix mutex callback return values in crypto/engine/hw_ncipher.c.
4705 [Andy Schneider <andy.schneider@bjss.co.uk>]
4707 *) [In 0.9.6c-engine release:]
4708 Add support for Cryptographic Appliance's keyserver technology.
4709 (Use engine 'keyclient')
4710 [Cryptographic Appliances and Geoff Thorpe]
4712 *) Add a configuration entry for OS/390 Unix. The C compiler 'c89'
4713 is called via tools/c89.sh because arguments have to be
4714 rearranged (all '-L' options must appear before the first object
4716 [Richard Shapiro <rshapiro@abinitio.com>]
4718 *) [In 0.9.6c-engine release:]
4719 Add support for Broadcom crypto accelerator cards, backported
4721 [Broadcom, Nalin Dahyabhai <nalin@redhat.com>, Mark Cox]
4723 *) [In 0.9.6c-engine release:]
4724 Add support for SureWare crypto accelerator cards from
4725 Baltimore Technologies. (Use engine 'sureware')
4726 [Baltimore Technologies and Mark Cox]
4728 *) [In 0.9.6c-engine release:]
4729 Add support for crypto accelerator cards from Accelerated
4730 Encryption Processing, www.aep.ie. (Use engine 'aep')
4731 [AEP Inc. and Mark Cox]
4733 *) Add a configuration entry for gcc on UnixWare.
4734 [Gary Benson <gbenson@redhat.com>]
4736 *) Change ssl/s2_clnt.c and ssl/s2_srvr.c so that received handshake
4737 messages are stored in a single piece (fixed-length part and
4738 variable-length part combined) and fix various bugs found on the way.
4741 *) Disable caching in BIO_gethostbyname(), directly use gethostbyname()
4742 instead. BIO_gethostbyname() does not know what timeouts are
4743 appropriate, so entries would stay in cache even when they have
4745 [Bodo Moeller; problem pointed out by Rich Salz <rsalz@zolera.com>
4747 *) Change ssl23_get_client_hello (ssl/s23_srvr.c) behaviour when
4748 faced with a pathologically small ClientHello fragment that does
4749 not contain client_version: Instead of aborting with an error,
4750 simply choose the highest available protocol version (i.e.,
4751 TLS 1.0 unless it is disabled). In practice, ClientHello
4752 messages are never sent like this, but this change gives us
4753 strictly correct behaviour at least for TLS.
4756 *) Fix SSL handshake functions and SSL_clear() such that SSL_clear()
4757 never resets s->method to s->ctx->method when called from within
4758 one of the SSL handshake functions.
4759 [Bodo Moeller; problem pointed out by Niko Baric]
4761 *) In ssl3_get_client_hello (ssl/s3_srvr.c), generate a fatal alert
4762 (sent using the client's version number) if client_version is
4763 smaller than the protocol version in use. Also change
4764 ssl23_get_client_hello (ssl/s23_srvr.c) to select TLS 1.0 if
4765 the client demanded SSL 3.0 but only TLS 1.0 is enabled; then
4766 the client will at least see that alert.
4769 *) Fix ssl3_get_message (ssl/s3_both.c) to handle message fragmentation
4773 *) Avoid infinite loop in ssl3_get_message (ssl/s3_both.c) if a
4774 client receives HelloRequest while in a handshake.
4775 [Bodo Moeller; bug noticed by Andy Schneider <andy.schneider@bjss.co.uk>]
4777 *) Bugfix in ssl3_accept (ssl/s3_srvr.c): Case SSL3_ST_SW_HELLO_REQ_C
4778 should end in 'break', not 'goto end' which circuments various
4779 cleanups done in state SSL_ST_OK. But session related stuff
4780 must be disabled for SSL_ST_OK in the case that we just sent a
4783 Also avoid some overhead by not calling ssl_init_wbio_buffer()
4784 before just sending a HelloRequest.
4785 [Bodo Moeller, Eric Rescorla <ekr@rtfm.com>]
4787 *) Fix ssl/s3_enc.c, ssl/t1_enc.c and ssl/s3_pkt.c so that we don't
4788 reveal whether illegal block cipher padding was found or a MAC
4789 verification error occured. (Neither SSLerr() codes nor alerts
4790 are directly visible to potential attackers, but the information
4791 may leak via logfiles.)
4793 Similar changes are not required for the SSL 2.0 implementation
4794 because the number of padding bytes is sent in clear for SSL 2.0,
4795 and the extra bytes are just ignored. However ssl/s2_pkt.c
4796 failed to verify that the purported number of padding bytes is in
4800 *) Add OpenUNIX-8 support including shared libraries
4801 (Boyd Lynn Gerber <gerberb@zenez.com>).
4804 *) Improve RSA_padding_check_PKCS1_OAEP() check again to avoid
4805 'wristwatch attack' using huge encoding parameters (cf.
4806 James H. Manger's CRYPTO 2001 paper). Note that the
4807 RSA_PKCS1_OAEP_PADDING case of RSA_private_decrypt() does not use
4808 encoding parameters and hence was not vulnerable.
4811 *) BN_sqr() bug fix.
4812 [Ulf Möller, reported by Jim Ellis <jim.ellis@cavium.com>]
4814 *) Rabin-Miller test analyses assume uniformly distributed witnesses,
4815 so use BN_pseudo_rand_range() instead of using BN_pseudo_rand()
4816 followed by modular reduction.
4817 [Bodo Moeller; pointed out by Adam Young <AYoung1@NCSUS.JNJ.COM>]
4819 *) Add BN_pseudo_rand_range() with obvious functionality: BN_rand_range()
4820 equivalent based on BN_pseudo_rand() instead of BN_rand().
4823 *) s3_srvr.c: allow sending of large client certificate lists (> 16 kB).
4824 This function was broken, as the check for a new client hello message
4825 to handle SGC did not allow these large messages.
4826 (Tracked down by "Douglas E. Engert" <deengert@anl.gov>.)
4829 *) Add alert descriptions for TLSv1 to SSL_alert_desc_string[_long]().
4832 *) Fix buggy behaviour of BIO_get_num_renegotiates() and BIO_ctrl()
4833 for BIO_C_GET_WRITE_BUF_SIZE ("Stephen Hinton" <shinton@netopia.com>).
4836 *) Rework the configuration and shared library support for Tru64 Unix.
4837 The configuration part makes use of modern compiler features and
4838 still retains old compiler behavior for those that run older versions
4839 of the OS. The shared library support part includes a variant that
4840 uses the RPATH feature, and is available through the special
4841 configuration target "alpha-cc-rpath", which will never be selected
4843 [Tim Mooney <mooney@dogbert.cc.ndsu.NoDak.edu> via Richard Levitte]
4845 *) In ssl3_get_key_exchange (ssl/s3_clnt.c), call ssl3_get_message()
4846 with the same message size as in ssl3_get_certificate_request().
4847 Otherwise, if no ServerKeyExchange message occurs, CertificateRequest
4848 messages might inadvertently be reject as too long.
4849 [Petr Lampa <lampa@fee.vutbr.cz>]
4851 *) Enhanced support for IA-64 Unix platforms (well, Linux and HP-UX).
4854 *) Modified SSL library such that the verify_callback that has been set
4855 specificly for an SSL object with SSL_set_verify() is actually being
4856 used. Before the change, a verify_callback set with this function was
4857 ignored and the verify_callback() set in the SSL_CTX at the time of
4858 the call was used. New function X509_STORE_CTX_set_verify_cb() introduced
4859 to allow the necessary settings.
4862 *) Initialize static variable in crypto/dsa/dsa_lib.c and crypto/dh/dh_lib.c
4863 explicitly to NULL, as at least on Solaris 8 this seems not always to be
4864 done automatically (in contradiction to the requirements of the C
4865 standard). This made problems when used from OpenSSH.
4868 *) In OpenSSL 0.9.6a and 0.9.6b, crypto/dh/dh_key.c ignored
4869 dh->length and always used
4871 BN_rand_range(priv_key, dh->p).
4873 BN_rand_range() is not necessary for Diffie-Hellman, and this
4874 specific range makes Diffie-Hellman unnecessarily inefficient if
4875 dh->length (recommended exponent length) is much smaller than the
4876 length of dh->p. We could use BN_rand_range() if the order of
4877 the subgroup was stored in the DH structure, but we only have
4882 BN_rand(priv_key, l, ...)
4884 where 'l' is dh->length if this is defined, or BN_num_bits(dh->p)-1
4890 RSA_eay_public_encrypt
4891 RSA_eay_private_decrypt
4892 RSA_eay_private_encrypt (signing)
4893 RSA_eay_public_decrypt (signature verification)
4895 (default implementations for RSA_public_encrypt,
4896 RSA_private_decrypt, RSA_private_encrypt, RSA_public_decrypt),
4897 always reject numbers >= n.
4900 *) In crypto/rand/md_rand.c, use a new short-time lock CRYPTO_LOCK_RAND2
4901 to synchronize access to 'locking_thread'. This is necessary on
4902 systems where access to 'locking_thread' (an 'unsigned long'
4903 variable) is not atomic.
4906 *) In crypto/rand/md_rand.c, set 'locking_thread' to current thread's ID
4907 *before* setting the 'crypto_lock_rand' flag. The previous code had
4908 a race condition if 0 is a valid thread ID.
4909 [Travis Vitek <vitek@roguewave.com>]
4911 *) Add support for shared libraries under Irix.
4912 [Albert Chin-A-Young <china@thewrittenword.com>]
4914 *) Add configuration option to build on Linux on both big-endian and
4916 [Ralf Baechle <ralf@uni-koblenz.de>]
4918 *) Add the possibility to create shared libraries on HP-UX.
4921 Changes between 0.9.6a and 0.9.6b [9 Jul 2001]
4923 *) Change ssleay_rand_bytes (crypto/rand/md_rand.c)
4924 to avoid a SSLeay/OpenSSL PRNG weakness pointed out by
4925 Markku-Juhani O. Saarinen <markku-juhani.saarinen@nokia.com>:
4926 PRNG state recovery was possible based on the output of
4927 one PRNG request appropriately sized to gain knowledge on
4928 'md' followed by enough consecutive 1-byte PRNG requests
4929 to traverse all of 'state'.
4931 1. When updating 'md_local' (the current thread's copy of 'md')
4932 during PRNG output generation, hash all of the previous
4933 'md_local' value, not just the half used for PRNG output.
4935 2. Make the number of bytes from 'state' included into the hash
4936 independent from the number of PRNG bytes requested.
4938 The first measure alone would be sufficient to avoid
4939 Markku-Juhani's attack. (Actually it had never occurred
4940 to me that the half of 'md_local' used for chaining was the
4941 half from which PRNG output bytes were taken -- I had always
4942 assumed that the secret half would be used.) The second
4943 measure makes sure that additional data from 'state' is never
4944 mixed into 'md_local' in small portions; this heuristically
4945 further strengthens the PRNG.
4948 *) Fix crypto/bn/asm/mips3.s.
4951 *) When only the key is given to "enc", the IV is undefined. Print out
4952 an error message in this case.
4955 *) Handle special case when X509_NAME is empty in X509 printing routines.
4958 *) In dsa_do_verify (crypto/dsa/dsa_ossl.c), verify that r and s are
4959 positive and less than q.
4962 *) Don't change *pointer in CRYPTO_add_lock() is add_lock_callback is
4963 used: it isn't thread safe and the add_lock_callback should handle
4965 [Paul Rose <Paul.Rose@bridge.com>]
4967 *) Verify that incoming data obeys the block size in
4968 ssl3_enc (ssl/s3_enc.c) and tls1_enc (ssl/t1_enc.c).
4972 [Ulf Möller, Bodo Möller]
4974 *) The countermeasure against Bleichbacher's attack on PKCS #1 v1.5
4975 RSA encryption was accidentally removed in s3_srvr.c in OpenSSL 0.9.5
4976 when fixing the server behaviour for backwards-compatible 'client
4977 hello' messages. (Note that the attack is impractical against
4978 SSL 3.0 and TLS 1.0 anyway because length and version checking
4979 means that the probability of guessing a valid ciphertext is
4980 around 2^-40; see section 5 in Bleichenbacher's CRYPTO '98
4983 Before 0.9.5, the countermeasure (hide the error by generating a
4984 random 'decryption result') did not work properly because
4985 ERR_clear_error() was missing, meaning that SSL_get_error() would
4986 detect the supposedly ignored error.
4988 Both problems are now fixed.
4991 *) In crypto/bio/bf_buff.c, increase DEFAULT_BUFFER_SIZE to 4096
4992 (previously it was 1024).
4995 *) Fix for compatibility mode trust settings: ignore trust settings
4996 unless some valid trust or reject settings are present.
4999 *) Fix for blowfish EVP: its a variable length cipher.
5002 *) Fix various bugs related to DSA S/MIME verification. Handle missing
5003 parameters in DSA public key structures and return an error in the
5004 DSA routines if parameters are absent.
5007 *) In versions up to 0.9.6, RAND_file_name() resorted to file ".rnd"
5008 in the current directory if neither $RANDFILE nor $HOME was set.
5009 RAND_file_name() in 0.9.6a returned NULL in this case. This has
5010 caused some confusion to Windows users who haven't defined $HOME.
5011 Thus RAND_file_name() is changed again: e_os.h can define a
5012 DEFAULT_HOME, which will be used if $HOME is not set.
5013 For Windows, we use "C:"; on other platforms, we still require
5014 environment variables.
5016 *) Move 'if (!initialized) RAND_poll()' into regions protected by
5017 CRYPTO_LOCK_RAND. This is not strictly necessary, but avoids
5018 having multiple threads call RAND_poll() concurrently.
5021 *) In crypto/rand/md_rand.c, replace 'add_do_not_lock' flag by a
5022 combination of a flag and a thread ID variable.
5023 Otherwise while one thread is in ssleay_rand_bytes (which sets the
5024 flag), *other* threads can enter ssleay_add_bytes without obeying
5025 the CRYPTO_LOCK_RAND lock (and may even illegally release the lock
5026 that they do not hold after the first thread unsets add_do_not_lock).
5029 *) Change bctest again: '-x' expressions are not available in all
5033 Changes between 0.9.6 and 0.9.6a [5 Apr 2001]
5035 *) Fix a couple of memory leaks in PKCS7_dataDecode()
5036 [Steve Henson, reported by Heyun Zheng <hzheng@atdsprint.com>]
5038 *) Change Configure and Makefiles to provide EXE_EXT, which will contain
5039 the default extension for executables, if any. Also, make the perl
5040 scripts that use symlink() to test if it really exists and use "cp"
5041 if it doesn't. All this made OpenSSL compilable and installable in
5045 *) Fix for asn1_GetSequence() for indefinite length constructed data.
5046 If SEQUENCE is length is indefinite just set c->slen to the total
5047 amount of data available.
5048 [Steve Henson, reported by shige@FreeBSD.org]
5049 [This change does not apply to 0.9.7.]
5051 *) Change bctest to avoid here-documents inside command substitution
5052 (workaround for FreeBSD /bin/sh bug).
5053 For compatibility with Ultrix, avoid shell functions (introduced
5054 in the bctest version that searches along $PATH).
5057 *) Rename 'des_encrypt' to 'des_encrypt1'. This avoids the clashes
5058 with des_encrypt() defined on some operating systems, like Solaris
5062 *) Check the result of RSA-CRT (see D. Boneh, R. DeMillo, R. Lipton:
5063 On the Importance of Eliminating Errors in Cryptographic
5064 Computations, J. Cryptology 14 (2001) 2, 101-119,
5065 http://theory.stanford.edu/~dabo/papers/faults.ps.gz).
5068 *) MIPS assembler BIGNUM division bug fix.
5071 *) Disabled incorrect Alpha assembler code.
5074 *) Fix PKCS#7 decode routines so they correctly update the length
5075 after reading an EOC for the EXPLICIT tag.
5077 [This change does not apply to 0.9.7.]
5079 *) Fix bug in PKCS#12 key generation routines. This was triggered
5080 if a 3DES key was generated with a 0 initial byte. Include
5081 PKCS12_BROKEN_KEYGEN compilation option to retain the old
5082 (but broken) behaviour.
5085 *) Enhance bctest to search for a working bc along $PATH and print
5087 [Tim Rice <tim@multitalents.net> via Richard Levitte]
5089 *) Fix memory leaks in err.c: free err_data string if necessary;
5090 don't write to the wrong index in ERR_set_error_data.
5093 *) Implement ssl23_peek (analogous to ssl23_read), which previously
5097 *) Replace rdtsc with _emit statements for VC++ version 5.
5098 [Jeremy Cooper <jeremy@baymoo.org>]
5100 *) Make it possible to reuse SSLv2 sessions.
5103 *) In copy_email() check for >= 0 as a return value for
5104 X509_NAME_get_index_by_NID() since 0 is a valid index.
5105 [Steve Henson reported by Massimiliano Pala <madwolf@opensca.org>]
5107 *) Avoid coredump with unsupported or invalid public keys by checking if
5108 X509_get_pubkey() fails in PKCS7_verify(). Fix memory leak when
5109 PKCS7_verify() fails with non detached data.
5112 *) Don't use getenv in library functions when run as setuid/setgid.
5113 New function OPENSSL_issetugid().
5116 *) Avoid false positives in memory leak detection code (crypto/mem_dbg.c)
5117 due to incorrect handling of multi-threading:
5119 1. Fix timing glitch in the MemCheck_off() portion of CRYPTO_mem_ctrl().
5121 2. Fix logical glitch in is_MemCheck_on() aka CRYPTO_is_mem_check_on().
5123 3. Count how many times MemCheck_off() has been called so that
5124 nested use can be treated correctly. This also avoids
5125 inband-signalling in the previous code (which relied on the
5126 assumption that thread ID 0 is impossible).
5129 *) Add "-rand" option also to s_client and s_server.
5132 *) Fix CPU detection on Irix 6.x.
5133 [Kurt Hockenbury <khockenb@stevens-tech.edu> and
5134 "Bruce W. Forsberg" <bruce.forsberg@baesystems.com>]
5136 *) Fix X509_NAME bug which produced incorrect encoding if X509_NAME
5139 [This change does not apply to 0.9.7.]
5141 *) Use the cached encoding of an X509_NAME structure rather than
5142 copying it. This is apparently the reason for the libsafe "errors"
5143 but the code is actually correct.
5146 *) Add new function BN_rand_range(), and fix DSA_sign_setup() to prevent
5147 Bleichenbacher's DSA attack.
5148 Extend BN_[pseudo_]rand: As before, top=1 forces the highest two bits
5149 to be set and top=0 forces the highest bit to be set; top=-1 is new
5150 and leaves the highest bit random.
5151 [Ulf Moeller, Bodo Moeller]
5153 *) In the NCONF_...-based implementations for CONF_... queries
5154 (crypto/conf/conf_lib.c), if the input LHASH is NULL, avoid using
5155 a temporary CONF structure with the data component set to NULL
5156 (which gives segmentation faults in lh_retrieve).
5157 Instead, use NULL for the CONF pointer in CONF_get_string and
5158 CONF_get_number (which may use environment variables) and directly
5159 return NULL from CONF_get_section.
5162 *) Fix potential buffer overrun for EBCDIC.
5165 *) Tolerate nonRepudiation as being valid for S/MIME signing and certSign
5166 keyUsage if basicConstraints absent for a CA.
5169 *) Make SMIME_write_PKCS7() write mail header values with a format that
5170 is more generally accepted (no spaces before the semicolon), since
5171 some programs can't parse those values properly otherwise. Also make
5172 sure BIO's that break lines after each write do not create invalid
5176 *) Make the CRL encoding routines work with empty SEQUENCE OF. The
5177 macros previously used would not encode an empty SEQUENCE OF
5178 and break the signature.
5180 [This change does not apply to 0.9.7.]
5182 *) Zero the premaster secret after deriving the master secret in
5186 *) Add some EVP_add_digest_alias registrations (as found in
5187 OpenSSL_add_all_digests()) to SSL_library_init()
5188 aka OpenSSL_add_ssl_algorithms(). This provides improved
5189 compatibility with peers using X.509 certificates
5190 with unconventional AlgorithmIdentifier OIDs.
5193 *) Fix for Irix with NO_ASM.
5194 ["Bruce W. Forsberg" <bruce.forsberg@baesystems.com>]
5196 *) ./config script fixes.
5197 [Ulf Moeller, Richard Levitte]
5199 *) Fix 'openssl passwd -1'.
5202 *) Change PKCS12_key_gen_asc() so it can cope with non null
5203 terminated strings whose length is passed in the passlen
5204 parameter, for example from PEM callbacks. This was done
5205 by adding an extra length parameter to asc2uni().
5206 [Steve Henson, reported by <oddissey@samsung.co.kr>]
5208 *) Fix C code generated by 'openssl dsaparam -C': If a BN_bin2bn
5209 call failed, free the DSA structure.
5212 *) Fix to uni2asc() to cope with zero length Unicode strings.
5213 These are present in some PKCS#12 files.
5216 *) Increase s2->wbuf allocation by one byte in ssl2_new (ssl/s2_lib.c).
5217 Otherwise do_ssl_write (ssl/s2_pkt.c) will write beyond buffer limits
5218 when writing a 32767 byte record.
5219 [Bodo Moeller; problem reported by Eric Day <eday@concentric.net>]
5221 *) In RSA_eay_public_{en,ed}crypt and RSA_eay_mod_exp (rsa_eay.c),
5222 obtain lock CRYPTO_LOCK_RSA before setting rsa->_method_mod_{n,p,q}.
5224 (RSA objects have a reference count access to which is protected
5225 by CRYPTO_LOCK_RSA [see rsa_lib.c, s3_srvr.c, ssl_cert.c, ssl_rsa.c],
5226 so they are meant to be shared between threads.)
5227 [Bodo Moeller, Geoff Thorpe; original patch submitted by
5228 "Reddie, Steven" <Steven.Reddie@ca.com>]
5230 *) Fix a deadlock in CRYPTO_mem_leaks().
5233 *) Use better test patterns in bntest.
5236 *) rand_win.c fix for Borland C.
5239 *) BN_rshift bugfix for n == 0.
5242 *) Add a 'bctest' script that checks for some known 'bc' bugs
5243 so that 'make test' does not abort just because 'bc' is broken.
5246 *) Store verify_result within SSL_SESSION also for client side to
5247 avoid potential security hole. (Re-used sessions on the client side
5248 always resulted in verify_result==X509_V_OK, not using the original
5249 result of the server certificate verification.)
5252 *) Fix ssl3_pending: If the record in s->s3->rrec is not of type
5253 SSL3_RT_APPLICATION_DATA, return 0.
5254 Similarly, change ssl2_pending to return 0 if SSL_in_init(s) is true.
5258 Both ssl2_peek and ssl3_peek, which were totally broken in earlier
5259 releases, have been re-implemented by renaming the previous
5260 implementations of ssl2_read and ssl3_read to ssl2_read_internal
5261 and ssl3_read_internal, respectively, and adding 'peek' parameters
5262 to them. The new ssl[23]_{read,peek} functions are calls to
5263 ssl[23]_read_internal with the 'peek' flag set appropriately.
5264 A 'peek' parameter has also been added to ssl3_read_bytes, which
5265 does the actual work for ssl3_read_internal.
5268 *) Initialise "ex_data" member of RSA/DSA/DH structures prior to calling
5269 the method-specific "init()" handler. Also clean up ex_data after
5270 calling the method-specific "finish()" handler. Previously, this was
5271 happening the other way round.
5274 *) Increase BN_CTX_NUM (the number of BIGNUMs in a BN_CTX) to 16.
5275 The previous value, 12, was not always sufficient for BN_mod_exp().
5278 *) Make sure that shared libraries get the internal name engine with
5279 the full version number and not just 0. This should mark the
5280 shared libraries as not backward compatible. Of course, this should
5281 be changed again when we can guarantee backward binary compatibility.
5284 *) Fix typo in get_cert_by_subject() in by_dir.c
5285 [Jean-Marc Desperrier <jean-marc.desperrier@certplus.com>]
5287 *) Rework the system to generate shared libraries:
5289 - Make note of the expected extension for the shared libraries and
5290 if there is a need for symbolic links from for example libcrypto.so.0
5291 to libcrypto.so.0.9.7. There is extended info in Configure for
5294 - Make as few rebuilds of the shared libraries as possible.
5296 - Still avoid linking the OpenSSL programs with the shared libraries.
5298 - When installing, install the shared libraries separately from the
5302 *) Fix SSL_CTX_set_read_ahead macro to actually use its argument.
5304 Copy SSL_CTX's read_ahead flag to SSL object directly in SSL_new
5305 and not in SSL_clear because the latter is also used by the
5306 accept/connect functions; previously, the settings made by
5307 SSL_set_read_ahead would be lost during the handshake.
5308 [Bodo Moeller; problems reported by Anders Gertz <gertz@epact.se>]
5310 *) Correct util/mkdef.pl to be selective about disabled algorithms.
5311 Previously, it would create entries for disableed algorithms no
5315 *) Added several new manual pages for SSL_* function.
5318 Changes between 0.9.5a and 0.9.6 [24 Sep 2000]
5320 *) In ssl23_get_client_hello, generate an error message when faced
5321 with an initial SSL 3.0/TLS record that is too small to contain the
5322 first two bytes of the ClientHello message, i.e. client_version.
5323 (Note that this is a pathologic case that probably has never happened
5324 in real life.) The previous approach was to use the version number
5325 from the record header as a substitute; but our protocol choice
5326 should not depend on that one because it is not authenticated
5327 by the Finished messages.
5330 *) More robust randomness gathering functions for Windows.
5331 [Jeffrey Altman <jaltman@columbia.edu>]
5333 *) For compatibility reasons if the flag X509_V_FLAG_ISSUER_CHECK is
5334 not set then we don't setup the error code for issuer check errors
5335 to avoid possibly overwriting other errors which the callback does
5336 handle. If an application does set the flag then we assume it knows
5337 what it is doing and can handle the new informational codes
5341 *) Fix for a nasty bug in ASN1_TYPE handling. ASN1_TYPE is used for
5342 a general "ANY" type, as such it should be able to decode anything
5343 including tagged types. However it didn't check the class so it would
5344 wrongly interpret tagged types in the same way as their universal
5345 counterpart and unknown types were just rejected. Changed so that the
5346 tagged and unknown types are handled in the same way as a SEQUENCE:
5347 that is the encoding is stored intact. There is also a new type
5348 "V_ASN1_OTHER" which is used when the class is not universal, in this
5349 case we have no idea what the actual type is so we just lump them all
5353 *) On VMS, stdout may very well lead to a file that is written to
5354 in a record-oriented fashion. That means that every write() will
5355 write a separate record, which will be read separately by the
5356 programs trying to read from it. This can be very confusing.
5358 The solution is to put a BIO filter in the way that will buffer
5359 text until a linefeed is reached, and then write everything a
5360 line at a time, so every record written will be an actual line,
5361 not chunks of lines and not (usually doesn't happen, but I've
5362 seen it once) several lines in one record. BIO_f_linebuffer() is
5365 Currently, it's a VMS-only method, because that's where it has
5366 been tested well enough.
5369 *) Remove 'optimized' squaring variant in BN_mod_mul_montgomery,
5370 it can return incorrect results.
5371 (Note: The buggy variant was not enabled in OpenSSL 0.9.5a,
5372 but it was in 0.9.6-beta[12].)
5375 *) Disable the check for content being present when verifying detached
5376 signatures in pk7_smime.c. Some versions of Netscape (wrongly)
5377 include zero length content when signing messages.
5380 *) New BIO_shutdown_wr macro, which invokes the BIO_C_SHUTDOWN_WR
5381 BIO_ctrl (for BIO pairs).
5384 *) Add DSO method for VMS.
5387 *) Bug fix: Montgomery multiplication could produce results with the
5391 *) Add RPM specification openssl.spec and modify it to build three
5392 packages. The default package contains applications, application
5393 documentation and run-time libraries. The devel package contains
5394 include files, static libraries and function documentation. The
5395 doc package contains the contents of the doc directory. The original
5396 openssl.spec was provided by Damien Miller <djm@mindrot.org>.
5399 *) Add a large number of documentation files for many SSL routines.
5400 [Lutz Jaenicke <Lutz.Jaenicke@aet.TU-Cottbus.DE>]
5402 *) Add a configuration entry for Sony News 4.
5403 [NAKAJI Hiroyuki <nakaji@tutrp.tut.ac.jp>]
5405 *) Don't set the two most significant bits to one when generating a
5406 random number < q in the DSA library.
5409 *) New SSL API mode 'SSL_MODE_AUTO_RETRY'. This disables the default
5410 behaviour that SSL_read may result in SSL_ERROR_WANT_READ (even if
5411 the underlying transport is blocking) if a handshake took place.
5412 (The default behaviour is needed by applications such as s_client
5413 and s_server that use select() to determine when to use SSL_read;
5414 but for applications that know in advance when to expect data, it
5415 just makes things more complicated.)
5418 *) Add RAND_egd_bytes(), which gives control over the number of bytes read
5422 *) Add a few more EBCDIC conditionals that make `req' and `x509'
5423 work better on such systems.
5424 [Martin Kraemer <Martin.Kraemer@MchP.Siemens.De>]
5426 *) Add two demo programs for PKCS12_parse() and PKCS12_create().
5427 Update PKCS12_parse() so it copies the friendlyName and the
5428 keyid to the certificates aux info.
5431 *) Fix bug in PKCS7_verify() which caused an infinite loop
5432 if there was more than one signature.
5433 [Sven Uszpelkat <su@celocom.de>]
5435 *) Major change in util/mkdef.pl to include extra information
5436 about each symbol, as well as presentig variables as well
5437 as functions. This change means that there's n more need
5438 to rebuild the .num files when some algorithms are excluded.
5441 *) Allow the verify time to be set by an application,
5442 rather than always using the current time.
5445 *) Phase 2 verify code reorganisation. The certificate
5446 verify code now looks up an issuer certificate by a
5447 number of criteria: subject name, authority key id
5448 and key usage. It also verifies self signed certificates
5449 by the same criteria. The main comparison function is
5450 X509_check_issued() which performs these checks.
5452 Lot of changes were necessary in order to support this
5453 without completely rewriting the lookup code.
5455 Authority and subject key identifier are now cached.
5457 The LHASH 'certs' is X509_STORE has now been replaced
5458 by a STACK_OF(X509_OBJECT). This is mainly because an
5459 LHASH can't store or retrieve multiple objects with
5460 the same hash value.
5462 As a result various functions (which were all internal
5463 use only) have changed to handle the new X509_STORE
5464 structure. This will break anything that messed round
5465 with X509_STORE internally.
5467 The functions X509_STORE_add_cert() now checks for an
5468 exact match, rather than just subject name.
5470 The X509_STORE API doesn't directly support the retrieval
5471 of multiple certificates matching a given criteria, however
5472 this can be worked round by performing a lookup first
5473 (which will fill the cache with candidate certificates)
5474 and then examining the cache for matches. This is probably
5475 the best we can do without throwing out X509_LOOKUP
5476 entirely (maybe later...).
5478 The X509_VERIFY_CTX structure has been enhanced considerably.
5480 All certificate lookup operations now go via a get_issuer()
5481 callback. Although this currently uses an X509_STORE it
5482 can be replaced by custom lookups. This is a simple way
5483 to bypass the X509_STORE hackery necessary to make this
5484 work and makes it possible to use more efficient techniques
5485 in future. A very simple version which uses a simple
5486 STACK for its trusted certificate store is also provided
5487 using X509_STORE_CTX_trusted_stack().
5489 The verify_cb() and verify() callbacks now have equivalents
5490 in the X509_STORE_CTX structure.
5492 X509_STORE_CTX also has a 'flags' field which can be used
5493 to customise the verify behaviour.
5496 *) Add new PKCS#7 signing option PKCS7_NOSMIMECAP which
5497 excludes S/MIME capabilities.
5500 *) When a certificate request is read in keep a copy of the
5501 original encoding of the signed data and use it when outputing
5502 again. Signatures then use the original encoding rather than
5503 a decoded, encoded version which may cause problems if the
5504 request is improperly encoded.
5507 *) For consistency with other BIO_puts implementations, call
5508 buffer_write(b, ...) directly in buffer_puts instead of calling
5511 In BIO_puts, increment b->num_write as in BIO_write.
5512 [Peter.Sylvester@EdelWeb.fr]
5514 *) Fix BN_mul_word for the case where the word is 0. (We have to use
5515 BN_zero, we may not return a BIGNUM with an array consisting of
5519 *) Avoid calling abort() from within the library when problems are
5520 detected, except if preprocessor symbols have been defined
5521 (such as REF_CHECK, BN_DEBUG etc.).
5524 *) New openssl application 'rsautl'. This utility can be
5525 used for low level RSA operations. DER public key
5526 BIO/fp routines also added.
5529 *) New Configure entry and patches for compiling on QNX 4.
5530 [Andreas Schneider <andreas@ds3.etech.fh-hamburg.de>]
5532 *) A demo state-machine implementation was sponsored by
5533 Nuron (http://www.nuron.com/) and is now available in
5534 demos/state_machine.
5537 *) New options added to the 'dgst' utility for signature
5538 generation and verification.
5541 *) Unrecognized PKCS#7 content types are now handled via a
5542 catch all ASN1_TYPE structure. This allows unsupported
5543 types to be stored as a "blob" and an application can
5544 encode and decode it manually.
5547 *) Fix various signed/unsigned issues to make a_strex.c
5549 [Oscar Jacobsson <oscar.jacobsson@celocom.com>]
5551 *) ASN1 fixes. i2d_ASN1_OBJECT was not returning the correct
5552 length if passed a buffer. ASN1_INTEGER_to_BN failed
5553 if passed a NULL BN and its argument was negative.
5554 [Steve Henson, pointed out by Sven Heiberg <sven@tartu.cyber.ee>]
5556 *) Modification to PKCS#7 encoding routines to output definite
5557 length encoding. Since currently the whole structures are in
5558 memory there's not real point in using indefinite length
5559 constructed encoding. However if OpenSSL is compiled with
5560 the flag PKCS7_INDEFINITE_ENCODING the old form is used.
5563 *) Added BIO_vprintf() and BIO_vsnprintf().
5566 *) Added more prefixes to parse for in the the strings written
5567 through a logging bio, to cover all the levels that are available
5568 through syslog. The prefixes are now:
5570 PANIC, EMERG, EMR => LOG_EMERG
5571 ALERT, ALR => LOG_ALERT
5572 CRIT, CRI => LOG_CRIT
5573 ERROR, ERR => LOG_ERR
5574 WARNING, WARN, WAR => LOG_WARNING
5575 NOTICE, NOTE, NOT => LOG_NOTICE
5576 INFO, INF => LOG_INFO
5577 DEBUG, DBG => LOG_DEBUG
5579 and as before, if none of those prefixes are present at the
5580 beginning of the string, LOG_ERR is chosen.
5582 On Win32, the LOG_* levels are mapped according to this:
5584 LOG_EMERG, LOG_ALERT, LOG_CRIT, LOG_ERR => EVENTLOG_ERROR_TYPE
5585 LOG_WARNING => EVENTLOG_WARNING_TYPE
5586 LOG_NOTICE, LOG_INFO, LOG_DEBUG => EVENTLOG_INFORMATION_TYPE
5590 *) Made it possible to reconfigure with just the configuration
5591 argument "reconf" or "reconfigure". The command line arguments
5592 are stored in Makefile.ssl in the variable CONFIGURE_ARGS,
5593 and are retrieved from there when reconfiguring.
5597 [Assar Westerlund <assar@sics.se>, Richard Levitte]
5599 *) Add the arguments -CAfile and -CApath to the pkcs12 utility.
5602 *) The obj_dat.pl script was messing up the sorting of object
5603 names. The reason was that it compared the quoted version
5604 of strings as a result "OCSP" > "OCSP Signing" because
5605 " > SPACE. Changed script to store unquoted versions of
5606 names and add quotes on output. It was also omitting some
5607 names from the lookup table if they were given a default
5608 value (that is if SN is missing it is given the same
5609 value as LN and vice versa), these are now added on the
5610 grounds that if an object has a name we should be able to
5611 look it up. Finally added warning output when duplicate
5612 short or long names are found.
5615 *) Changes needed for Tandem NSK.
5616 [Scott Uroff <scott@xypro.com>]
5618 *) Fix SSL 2.0 rollback checking: Due to an off-by-one error in
5619 RSA_padding_check_SSLv23(), special padding was never detected
5620 and thus the SSL 3.0/TLS 1.0 countermeasure against protocol
5621 version rollback attacks was not effective.
5623 In s23_clnt.c, don't use special rollback-attack detection padding
5624 (RSA_SSLV23_PADDING) if SSL 2.0 is the only protocol enabled in the
5625 client; similarly, in s23_srvr.c, don't do the rollback check if
5626 SSL 2.0 is the only protocol enabled in the server.
5629 *) Make it possible to get hexdumps of unprintable data with 'openssl
5630 asn1parse'. By implication, the functions ASN1_parse_dump() and
5631 BIO_dump_indent() are added.
5634 *) New functions ASN1_STRING_print_ex() and X509_NAME_print_ex()
5635 these print out strings and name structures based on various
5636 flags including RFC2253 support and proper handling of
5637 multibyte characters. Added options to the 'x509' utility
5638 to allow the various flags to be set.
5641 *) Various fixes to use ASN1_TIME instead of ASN1_UTCTIME.
5642 Also change the functions X509_cmp_current_time() and
5643 X509_gmtime_adj() work with an ASN1_TIME structure,
5644 this will enable certificates using GeneralizedTime in validity
5645 dates to be checked.
5648 *) Make the NEG_PUBKEY_BUG code (which tolerates invalid
5649 negative public key encodings) on by default,
5650 NO_NEG_PUBKEY_BUG can be set to disable it.
5653 *) New function c2i_ASN1_OBJECT() which acts on ASN1_OBJECT
5654 content octets. An i2c_ASN1_OBJECT is unnecessary because
5655 the encoding can be trivially obtained from the structure.
5658 *) crypto/err.c locking bugfix: Use write locks (CRYPTO_w_[un]lock),
5659 not read locks (CRYPTO_r_[un]lock).
5662 *) A first attempt at creating official support for shared
5663 libraries through configuration. I've kept it so the
5664 default is static libraries only, and the OpenSSL programs
5665 are always statically linked for now, but there are
5666 preparations for dynamic linking in place.
5667 This has been tested on Linux and Tru64.
5670 *) Randomness polling function for Win9x, as described in:
5671 Peter Gutmann, Software Generation of Practically Strong
5675 *) Fix so PRNG is seeded in req if using an already existing
5679 *) New options to smime application. -inform and -outform
5680 allow alternative formats for the S/MIME message including
5681 PEM and DER. The -content option allows the content to be
5682 specified separately. This should allow things like Netscape
5683 form signing output easier to verify.
5686 *) Fix the ASN1 encoding of tags using the 'long form'.
5689 *) New ASN1 functions, i2c_* and c2i_* for INTEGER and BIT
5690 STRING types. These convert content octets to and from the
5691 underlying type. The actual tag and length octets are
5692 already assumed to have been read in and checked. These
5693 are needed because all other string types have virtually
5694 identical handling apart from the tag. By having versions
5695 of the ASN1 functions that just operate on content octets
5696 IMPLICIT tagging can be handled properly. It also allows
5697 the ASN1_ENUMERATED code to be cut down because ASN1_ENUMERATED
5698 and ASN1_INTEGER are identical apart from the tag.
5701 *) Change the handling of OID objects as follows:
5703 - New object identifiers are inserted in objects.txt, following
5704 the syntax given in objects.README.
5705 - objects.pl is used to process obj_mac.num and create a new
5707 - obj_dat.pl is used to create a new obj_dat.h, using the data in
5710 This is currently kind of a hack, and the perl code in objects.pl
5711 isn't very elegant, but it works as I intended. The simplest way
5712 to check that it worked correctly is to look in obj_dat.h and
5713 check the array nid_objs and make sure the objects haven't moved
5714 around (this is important!). Additions are OK, as well as
5715 consistent name changes.
5718 *) Add BSD-style MD5-based passwords to 'openssl passwd' (option '-1').
5721 *) Addition of the command line parameter '-rand file' to 'openssl req'.
5722 The given file adds to whatever has already been seeded into the
5723 random pool through the RANDFILE configuration file option or
5724 environment variable, or the default random state file.
5727 *) mkstack.pl now sorts each macro group into lexical order.
5728 Previously the output order depended on the order the files
5729 appeared in the directory, resulting in needless rewriting
5733 *) Patches to make OpenSSL compile under Win32 again. Mostly
5734 work arounds for the VC++ problem that it treats func() as
5735 func(void). Also stripped out the parts of mkdef.pl that
5736 added extra typesafe functions: these no longer exist.
5739 *) Reorganisation of the stack code. The macros are now all
5740 collected in safestack.h . Each macro is defined in terms of
5741 a "stack macro" of the form SKM_<name>(type, a, b). The
5742 DEBUG_SAFESTACK is now handled in terms of function casts,
5743 this has the advantage of retaining type safety without the
5744 use of additional functions. If DEBUG_SAFESTACK is not defined
5745 then the non typesafe macros are used instead. Also modified the
5746 mkstack.pl script to handle the new form. Needs testing to see
5747 if which (if any) compilers it chokes and maybe make DEBUG_SAFESTACK
5748 the default if no major problems. Similar behaviour for ASN1_SET_OF
5749 and PKCS12_STACK_OF.
5752 *) When some versions of IIS use the 'NET' form of private key the
5753 key derivation algorithm is different. Normally MD5(password) is
5754 used as a 128 bit RC4 key. In the modified case
5755 MD5(MD5(password) + "SGCKEYSALT") is used insted. Added some
5756 new functions i2d_RSA_NET(), d2i_RSA_NET() etc which are the same
5757 as the old Netscape_RSA functions except they have an additional
5758 'sgckey' parameter which uses the modified algorithm. Also added
5759 an -sgckey command line option to the rsa utility. Thanks to
5760 Adrian Peck <bertie@ncipher.com> for posting details of the modified
5761 algorithm to openssl-dev.
5764 *) The evp_local.h macros were using 'c.##kname' which resulted in
5765 invalid expansion on some systems (SCO 5.0.5 for example).
5766 Corrected to 'c.kname'.
5767 [Phillip Porch <root@theporch.com>]
5769 *) New X509_get1_email() and X509_REQ_get1_email() functions that return
5770 a STACK of email addresses from a certificate or request, these look
5771 in the subject name and the subject alternative name extensions and
5772 omit any duplicate addresses.
5775 *) Re-implement BN_mod_exp2_mont using independent (and larger) windows.
5776 This makes DSA verification about 2 % faster.
5779 *) Increase maximum window size in BN_mod_exp_... to 6 bits instead of 5
5780 (meaning that now 2^5 values will be precomputed, which is only 4 KB
5781 plus overhead for 1024 bit moduli).
5782 This makes exponentiations about 0.5 % faster for 1024 bit
5783 exponents (as measured by "openssl speed rsa2048").
5786 *) Rename memory handling macros to avoid conflicts with other
5788 Malloc => OPENSSL_malloc
5789 Malloc_locked => OPENSSL_malloc_locked
5790 Realloc => OPENSSL_realloc
5791 Free => OPENSSL_free
5794 *) New function BN_mod_exp_mont_word for small bases (roughly 15%
5795 faster than BN_mod_exp_mont, i.e. 7% for a full DH exchange).
5798 *) CygWin32 support.
5799 [John Jarvie <jjarvie@newsguy.com>]
5801 *) The type-safe stack code has been rejigged. It is now only compiled
5802 in when OpenSSL is configured with the DEBUG_SAFESTACK option and
5803 by default all type-specific stack functions are "#define"d back to
5804 standard stack functions. This results in more streamlined output
5805 but retains the type-safety checking possibilities of the original
5809 *) The STACK code has been cleaned up, and certain type declarations
5810 that didn't make a lot of sense have been brought in line. This has
5811 also involved a cleanup of sorts in safestack.h to more correctly
5812 map type-safe stack functions onto their plain stack counterparts.
5813 This work has also resulted in a variety of "const"ifications of
5814 lots of the code, especially "_cmp" operations which should normally
5815 be prototyped with "const" parameters anyway.
5818 *) When generating bytes for the first time in md_rand.c, 'stir the pool'
5819 by seeding with STATE_SIZE dummy bytes (with zero entropy count).
5820 (The PRNG state consists of two parts, the large pool 'state' and 'md',
5821 where all of 'md' is used each time the PRNG is used, but 'state'
5822 is used only indexed by a cyclic counter. As entropy may not be
5823 well distributed from the beginning, 'md' is important as a
5824 chaining variable. However, the output function chains only half
5825 of 'md', i.e. 80 bits. ssleay_rand_add, on the other hand, chains
5826 all of 'md', and seeding with STATE_SIZE dummy bytes will result
5827 in all of 'state' being rewritten, with the new values depending
5828 on virtually all of 'md'. This overcomes the 80 bit limitation.)
5831 *) In ssl/s2_clnt.c and ssl/s3_clnt.c, call ERR_clear_error() when
5832 the handshake is continued after ssl_verify_cert_chain();
5833 otherwise, if SSL_VERIFY_NONE is set, remaining error codes
5834 can lead to 'unexplainable' connection aborts later.
5835 [Bodo Moeller; problem tracked down by Lutz Jaenicke]
5837 *) Major EVP API cipher revision.
5838 Add hooks for extra EVP features. This allows various cipher
5839 parameters to be set in the EVP interface. Support added for variable
5840 key length ciphers via the EVP_CIPHER_CTX_set_key_length() function and
5841 setting of RC2 and RC5 parameters.
5843 Modify EVP_OpenInit() and EVP_SealInit() to cope with variable key length
5846 Remove lots of duplicated code from the EVP library. For example *every*
5847 cipher init() function handles the 'iv' in the same way according to the
5848 cipher mode. They also all do nothing if the 'key' parameter is NULL and
5849 for CFB and OFB modes they zero ctx->num.
5851 New functionality allows removal of S/MIME code RC2 hack.
5853 Most of the routines have the same form and so can be declared in terms
5856 By shifting this to the top level EVP_CipherInit() it can be removed from
5857 all individual ciphers. If the cipher wants to handle IVs or keys
5858 differently it can set the EVP_CIPH_CUSTOM_IV or EVP_CIPH_ALWAYS_CALL_INIT
5861 Change lots of functions like EVP_EncryptUpdate() to now return a
5862 value: although software versions of the algorithms cannot fail
5863 any installed hardware versions can.
5866 *) Implement SSL_OP_TLS_ROLLBACK_BUG: In ssl3_get_client_key_exchange, if
5867 this option is set, tolerate broken clients that send the negotiated
5868 protocol version number instead of the requested protocol version
5872 *) Call dh_tmp_cb (set by ..._TMP_DH_CB) with correct 'is_export' flag;
5873 i.e. non-zero for export ciphersuites, zero otherwise.
5874 Previous versions had this flag inverted, inconsistent with
5875 rsa_tmp_cb (..._TMP_RSA_CB).
5876 [Bodo Moeller; problem reported by Amit Chopra]
5878 *) Add missing DSA library text string. Work around for some IIS
5879 key files with invalid SEQUENCE encoding.
5882 *) Add a document (doc/standards.txt) that list all kinds of standards
5883 and so on that are implemented in OpenSSL.
5886 *) Enhance c_rehash script. Old version would mishandle certificates
5887 with the same subject name hash and wouldn't handle CRLs at all.
5888 Added -fingerprint option to crl utility, to support new c_rehash
5892 *) Eliminate non-ANSI declarations in crypto.h and stack.h.
5895 *) Fix for SSL server purpose checking. Server checking was
5896 rejecting certificates which had extended key usage present
5897 but no ssl client purpose.
5898 [Steve Henson, reported by Rene Grosser <grosser@hisolutions.com>]
5900 *) Make PKCS#12 code work with no password. The PKCS#12 spec
5901 is a little unclear about how a blank password is handled.
5902 Since the password in encoded as a BMPString with terminating
5903 double NULL a zero length password would end up as just the
5904 double NULL. However no password at all is different and is
5905 handled differently in the PKCS#12 key generation code. NS
5906 treats a blank password as zero length. MSIE treats it as no
5907 password on export: but it will try both on import. We now do
5908 the same: PKCS12_parse() tries zero length and no password if
5909 the password is set to "" or NULL (NULL is now a valid password:
5910 it wasn't before) as does the pkcs12 application.
5913 *) Bugfixes in apps/x509.c: Avoid a memory leak; and don't use
5914 perror when PEM_read_bio_X509_REQ fails, the error message must
5915 be obtained from the error queue.
5918 *) Avoid 'thread_hash' memory leak in crypto/err/err.c by freeing
5919 it in ERR_remove_state if appropriate, and change ERR_get_state
5920 accordingly to avoid race conditions (this is necessary because
5921 thread_hash is no longer constant once set).
5924 *) Bugfix for linux-elf makefile.one.
5927 *) RSA_get_default_method() will now cause a default
5928 RSA_METHOD to be chosen if one doesn't exist already.
5929 Previously this was only set during a call to RSA_new()
5930 or RSA_new_method(NULL) meaning it was possible for
5931 RSA_get_default_method() to return NULL.
5934 *) Added native name translation to the existing DSO code
5935 that will convert (if the flag to do so is set) filenames
5936 that are sufficiently small and have no path information
5937 into a canonical native form. Eg. "blah" converted to
5938 "libblah.so" or "blah.dll" etc.
5941 *) New function ERR_error_string_n(e, buf, len) which is like
5942 ERR_error_string(e, buf), but writes at most 'len' bytes
5943 including the 0 terminator. For ERR_error_string_n, 'buf'
5945 [Damien Miller <djm@mindrot.org>, Bodo Moeller]
5947 *) CONF library reworked to become more general. A new CONF
5948 configuration file reader "class" is implemented as well as a
5949 new functions (NCONF_*, for "New CONF") to handle it. The now
5950 old CONF_* functions are still there, but are reimplemented to
5951 work in terms of the new functions. Also, a set of functions
5952 to handle the internal storage of the configuration data is
5953 provided to make it easier to write new configuration file
5954 reader "classes" (I can definitely see something reading a
5955 configuration file in XML format, for example), called _CONF_*,
5956 or "the configuration storage API"...
5958 The new configuration file reading functions are:
5960 NCONF_new, NCONF_free, NCONF_load, NCONF_load_fp, NCONF_load_bio,
5961 NCONF_get_section, NCONF_get_string, NCONF_get_numbre
5963 NCONF_default, NCONF_WIN32
5965 NCONF_dump_fp, NCONF_dump_bio
5967 NCONF_default and NCONF_WIN32 are method (or "class") choosers,
5968 NCONF_new creates a new CONF object. This works in the same way
5969 as other interfaces in OpenSSL, like the BIO interface.
5970 NCONF_dump_* dump the internal storage of the configuration file,
5971 which is useful for debugging. All other functions take the same
5972 arguments as the old CONF_* functions wth the exception of the
5973 first that must be a `CONF *' instead of a `LHASH *'.
5975 To make it easer to use the new classes with the old CONF_* functions,
5976 the function CONF_set_default_method is provided.
5979 *) Add '-tls1' option to 'openssl ciphers', which was already
5980 mentioned in the documentation but had not been implemented.
5981 (This option is not yet really useful because even the additional
5982 experimental TLS 1.0 ciphers are currently treated as SSL 3.0 ciphers.)
5985 *) Initial DSO code added into libcrypto for letting OpenSSL (and
5986 OpenSSL-based applications) load shared libraries and bind to
5987 them in a portable way.
5988 [Geoff Thorpe, with contributions from Richard Levitte]
5990 Changes between 0.9.5 and 0.9.5a [1 Apr 2000]
5992 *) Make sure _lrotl and _lrotr are only used with MSVC.
5994 *) Use lock CRYPTO_LOCK_RAND correctly in ssleay_rand_status
5995 (the default implementation of RAND_status).
5997 *) Rename openssl x509 option '-crlext', which was added in 0.9.5,
5998 to '-clrext' (= clear extensions), as intended and documented.
5999 [Bodo Moeller; inconsistency pointed out by Michael Attili
6002 *) Fix for HMAC. It wasn't zeroing the rest of the block if the key length
6003 was larger than the MD block size.
6004 [Steve Henson, pointed out by Yost William <YostW@tce.com>]
6006 *) Modernise PKCS12_parse() so it uses STACK_OF(X509) for its ca argument
6007 fix a leak when the ca argument was passed as NULL. Stop X509_PUBKEY_set()
6008 using the passed key: if the passed key was a private key the result
6009 of X509_print(), for example, would be to print out all the private key
6013 *) des_quad_cksum() byte order bug fix.
6014 [Ulf Möller, using the problem description in krb4-0.9.7, where
6015 the solution is attributed to Derrick J Brashear <shadow@DEMENTIA.ORG>]
6017 *) Fix so V_ASN1_APP_CHOOSE works again: however its use is strongly
6019 [Steve Henson, pointed out by Brian Korver <briank@cs.stanford.edu>]
6021 *) For easily testing in shell scripts whether some command
6022 'openssl XXX' exists, the new pseudo-command 'openssl no-XXX'
6023 returns with exit code 0 iff no command of the given name is available.
6024 'no-XXX' is printed in this case, 'XXX' otherwise. In both cases,
6025 the output goes to stdout and nothing is printed to stderr.
6026 Additional arguments are always ignored.
6028 Since for each cipher there is a command of the same name,
6029 the 'no-cipher' compilation switches can be tested this way.
6031 ('openssl no-XXX' is not able to detect pseudo-commands such
6032 as 'quit', 'list-XXX-commands', or 'no-XXX' itself.)
6035 *) Update test suite so that 'make test' succeeds in 'no-rsa' configuration.
6038 *) For SSL_[CTX_]set_tmp_dh, don't create a DH key if SSL_OP_SINGLE_DH_USE
6039 is set; it will be thrown away anyway because each handshake creates
6041 ssl_cert_dup, which is used by SSL_new, now copies DH keys in addition
6042 to parameters -- in previous versions (since OpenSSL 0.9.3) the
6043 'default key' from SSL_CTX_set_tmp_dh would always be lost, meanining
6044 you effectivly got SSL_OP_SINGLE_DH_USE when using this macro.
6047 *) New s_client option -ign_eof: EOF at stdin is ignored, and
6048 'Q' and 'R' lose their special meanings (quit/renegotiate).
6049 This is part of what -quiet does; unlike -quiet, -ign_eof
6050 does not suppress any output.
6053 *) Add compatibility options to the purpose and trust code. The
6054 purpose X509_PURPOSE_ANY is "any purpose" which automatically
6055 accepts a certificate or CA, this was the previous behaviour,
6056 with all the associated security issues.
6058 X509_TRUST_COMPAT is the old trust behaviour: only and
6059 automatically trust self signed roots in certificate store. A
6060 new trust setting X509_TRUST_DEFAULT is used to specify that
6061 a purpose has no associated trust setting and it should instead
6062 use the value in the default purpose.
6065 *) Fix the PKCS#8 DSA private key code so it decodes keys again
6066 and fix a memory leak.
6069 *) In util/mkerr.pl (which implements 'make errors'), preserve
6070 reason strings from the previous version of the .c file, as
6071 the default to have only downcase letters (and digits) in
6072 automatically generated reasons codes is not always appropriate.
6075 *) In ERR_load_ERR_strings(), build an ERR_LIB_SYS error reason table
6076 using strerror. Previously, ERR_reason_error_string() returned
6077 library names as reason strings for SYSerr; but SYSerr is a special
6078 case where small numbers are errno values, not library numbers.
6081 *) Add '-dsaparam' option to 'openssl dhparam' application. This
6082 converts DSA parameters into DH parameters. (When creating parameters,
6083 DSA_generate_parameters is used.)
6086 *) Include 'length' (recommended exponent length) in C code generated
6087 by 'openssl dhparam -C'.
6090 *) The second argument to set_label in perlasm was already being used
6091 so couldn't be used as a "file scope" flag. Moved to third argument
6095 *) In PEM_ASN1_write_bio and some other functions, use RAND_pseudo_bytes
6096 instead of RAND_bytes for encryption IVs and salts.
6099 *) Include RAND_status() into RAND_METHOD instead of implementing
6100 it only for md_rand.c Otherwise replacing the PRNG by calling
6101 RAND_set_rand_method would be impossible.
6104 *) Don't let DSA_generate_key() enter an infinite loop if the random
6105 number generation fails.
6108 *) New 'rand' application for creating pseudo-random output.
6111 *) Added configuration support for Linux/IA64
6112 [Rolf Haberrecker <rolf@suse.de>]
6114 *) Assembler module support for Mingw32.
6117 *) Shared library support for HPUX (in shlib/).
6118 [Lutz Jaenicke <Lutz.Jaenicke@aet.TU-Cottbus.DE> and Anonymous]
6120 *) Shared library support for Solaris gcc.
6121 [Lutz Behnke <behnke@trustcenter.de>]
6123 Changes between 0.9.4 and 0.9.5 [28 Feb 2000]
6125 *) PKCS7_encrypt() was adding text MIME headers twice because they
6126 were added manually and by SMIME_crlf_copy().
6129 *) In bntest.c don't call BN_rand with zero bits argument.
6130 [Steve Henson, pointed out by Andrew W. Gray <agray@iconsinc.com>]
6132 *) BN_mul bugfix: In bn_mul_part_recursion() only the a>a[n] && b>b[n]
6133 case was implemented. This caused BN_div_recp() to fail occasionally.
6136 *) Add an optional second argument to the set_label() in the perl
6137 assembly language builder. If this argument exists and is set
6138 to 1 it signals that the assembler should use a symbol whose
6139 scope is the entire file, not just the current function. This
6140 is needed with MASM which uses the format label:: for this scope.
6141 [Steve Henson, pointed out by Peter Runestig <peter@runestig.com>]
6143 *) Change the ASN1 types so they are typedefs by default. Before
6144 almost all types were #define'd to ASN1_STRING which was causing
6145 STACK_OF() problems: you couldn't declare STACK_OF(ASN1_UTF8STRING)
6149 *) Change names of new functions to the new get1/get0 naming
6150 convention: After 'get1', the caller owns a reference count
6151 and has to call ..._free; 'get0' returns a pointer to some
6152 data structure without incrementing reference counters.
6153 (Some of the existing 'get' functions increment a reference
6154 counter, some don't.)
6155 Similarly, 'set1' and 'add1' functions increase reference
6156 counters or duplicate objects.
6159 *) Allow for the possibility of temp RSA key generation failure:
6160 the code used to assume it always worked and crashed on failure.
6163 *) Fix potential buffer overrun problem in BIO_printf().
6164 [Ulf Möller, using public domain code by Patrick Powell; problem
6165 pointed out by David Sacerdote <das33@cornell.edu>]
6167 *) Support EGD <http://www.lothar.com/tech/crypto/>. New functions
6168 RAND_egd() and RAND_status(). In the command line application,
6169 the EGD socket can be specified like a seed file using RANDFILE
6173 *) Allow the string CERTIFICATE to be tolerated in PKCS#7 structures.
6174 Some CAs (e.g. Verisign) distribute certificates in this form.
6177 *) Remove the SSL_ALLOW_ADH compile option and set the default cipher
6178 list to exclude them. This means that no special compilation option
6179 is needed to use anonymous DH: it just needs to be included in the
6183 *) Change the EVP_MD_CTX_type macro so its meaning consistent with
6184 EVP_MD_type. The old functionality is available in a new macro called
6185 EVP_MD_md(). Change code that uses it and update docs.
6188 *) ..._ctrl functions now have corresponding ..._callback_ctrl functions
6189 where the 'void *' argument is replaced by a function pointer argument.
6190 Previously 'void *' was abused to point to functions, which works on
6191 many platforms, but is not correct. As these functions are usually
6192 called by macros defined in OpenSSL header files, most source code
6193 should work without changes.
6196 *) <openssl/opensslconf.h> (which is created by Configure) now contains
6197 sections with information on -D... compiler switches used for
6198 compiling the library so that applications can see them. To enable
6199 one of these sections, a pre-processor symbol OPENSSL_..._DEFINES
6200 must be defined. E.g.,
6201 #define OPENSSL_ALGORITHM_DEFINES
6202 #include <openssl/opensslconf.h>
6203 defines all pertinent NO_<algo> symbols, such as NO_IDEA, NO_RSA, etc.
6204 [Richard Levitte, Ulf and Bodo Möller]
6206 *) Bugfix: Tolerate fragmentation and interleaving in the SSL 3/TLS
6210 *) Change the 'other' type in certificate aux info to a STACK_OF
6211 X509_ALGOR. Although not an AlgorithmIdentifier as such it has
6212 the required ASN1 format: arbitrary types determined by an OID.
6215 *) Add some PEM_write_X509_REQ_NEW() functions and a command line
6216 argument to 'req'. This is not because the function is newer or
6217 better than others it just uses the work 'NEW' in the certificate
6218 request header lines. Some software needs this.
6221 *) Reorganise password command line arguments: now passwords can be
6222 obtained from various sources. Delete the PEM_cb function and make
6223 it the default behaviour: i.e. if the callback is NULL and the
6224 usrdata argument is not NULL interpret it as a null terminated pass
6225 phrase. If usrdata and the callback are NULL then the pass phrase
6226 is prompted for as usual.
6229 *) Add support for the Compaq Atalla crypto accelerator. If it is installed,
6230 the support is automatically enabled. The resulting binaries will
6231 autodetect the card and use it if present.
6232 [Ben Laurie and Compaq Inc.]
6234 *) Work around for Netscape hang bug. This sends certificate request
6235 and server done in one record. Since this is perfectly legal in the
6236 SSL/TLS protocol it isn't a "bug" option and is on by default. See
6237 the bugs/SSLv3 entry for more info.
6240 *) HP-UX tune-up: new unified configs, HP C compiler bug workaround.
6243 *) Add -rand argument to smime and pkcs12 applications and read/write
6247 *) New 'passwd' tool for crypt(3) and apr1 password hashes.
6250 *) Add command line password options to the remaining applications.
6253 *) Bug fix for BN_div_recp() for numerators with an even number of
6257 *) More tests in bntest.c, and changed test_bn output.
6260 *) ./config recognizes MacOS X now.
6263 *) Bug fix for BN_div() when the first words of num and divsor are
6264 equal (it gave wrong results if (rem=(n1-q*d0)&BN_MASK2) < d0).
6267 *) Add support for various broken PKCS#8 formats, and command line
6268 options to produce them.
6271 *) New functions BN_CTX_start(), BN_CTX_get() and BT_CTX_end() to
6272 get temporary BIGNUMs from a BN_CTX.
6275 *) Correct return values in BN_mod_exp_mont() and BN_mod_exp2_mont()
6279 *) Change the SSLeay_add_all_*() functions to OpenSSL_add_all_*() and
6280 include a #define from the old name to the new. The original intent
6281 was that statically linked binaries could for example just call
6282 SSLeay_add_all_ciphers() to just add ciphers to the table and not
6283 link with digests. This never worked becayse SSLeay_add_all_digests()
6284 and SSLeay_add_all_ciphers() were in the same source file so calling
6285 one would link with the other. They are now in separate source files.
6288 *) Add a new -notext option to 'ca' and a -pubkey option to 'spkac'.
6291 *) Use a less unusual form of the Miller-Rabin primality test (it used
6292 a binary algorithm for exponentiation integrated into the Miller-Rabin
6293 loop, our standard modexp algorithms are faster).
6296 *) Support for the EBCDIC character set completed.
6297 [Martin Kraemer <Martin.Kraemer@Mch.SNI.De>]
6299 *) Source code cleanups: use const where appropriate, eliminate casts,
6300 use void * instead of char * in lhash.
6303 *) Bugfix: ssl3_send_server_key_exchange was not restartable
6304 (the state was not changed to SSL3_ST_SW_KEY_EXCH_B, and because of
6305 this the server could overwrite ephemeral keys that the client
6309 *) Turn DSA_is_prime into a macro that calls BN_is_prime,
6310 using 50 iterations of the Rabin-Miller test.
6312 DSA_generate_parameters now uses BN_is_prime_fasttest (with 50
6313 iterations of the Rabin-Miller test as required by the appendix
6314 to FIPS PUB 186[-1]) instead of DSA_is_prime.
6315 As BN_is_prime_fasttest includes trial division, DSA parameter
6316 generation becomes much faster.
6318 This implies a change for the callback functions in DSA_is_prime
6319 and DSA_generate_parameters: The callback function is called once
6320 for each positive witness in the Rabin-Miller test, not just
6321 occasionally in the inner loop; and the parameters to the
6322 callback function now provide an iteration count for the outer
6323 loop rather than for the current invocation of the inner loop.
6324 DSA_generate_parameters additionally can call the callback
6325 function with an 'iteration count' of -1, meaning that a
6326 candidate has passed the trial division test (when q is generated
6327 from an application-provided seed, trial division is skipped).
6330 *) New function BN_is_prime_fasttest that optionally does trial
6331 division before starting the Rabin-Miller test and has
6332 an additional BN_CTX * argument (whereas BN_is_prime always
6333 has to allocate at least one BN_CTX).
6334 'callback(1, -1, cb_arg)' is called when a number has passed the
6335 trial division stage.
6338 *) Fix for bug in CRL encoding. The validity dates weren't being handled
6342 *) New -pkcs12 option to CA.pl script to write out a PKCS#12 file.
6345 *) New function BN_pseudo_rand().
6348 *) Clean up BN_mod_mul_montgomery(): replace the broken (and unreadable)
6349 bignum version of BN_from_montgomery() with the working code from
6350 SSLeay 0.9.0 (the word based version is faster anyway), and clean up
6354 *) Avoid a race condition in s2_clnt.c (function get_server_hello) that
6355 made it impossible to use the same SSL_SESSION data structure in
6356 SSL2 clients in multiple threads.
6359 *) The return value of RAND_load_file() no longer counts bytes obtained
6360 by stat(). RAND_load_file(..., -1) is new and uses the complete file
6361 to seed the PRNG (previously an explicit byte count was required).
6362 [Ulf Möller, Bodo Möller]
6364 *) Clean up CRYPTO_EX_DATA functions, some of these didn't have prototypes
6365 used (char *) instead of (void *) and had casts all over the place.
6368 *) Make BN_generate_prime() return NULL on error if ret!=NULL.
6371 *) Retain source code compatibility for BN_prime_checks macro:
6372 BN_is_prime(..., BN_prime_checks, ...) now uses
6373 BN_prime_checks_for_size to determine the appropriate number of
6374 Rabin-Miller iterations.
6377 *) Diffie-Hellman uses "safe" primes: DH_check() return code renamed to
6378 DH_CHECK_P_NOT_SAFE_PRIME.
6379 (Check if this is true? OpenPGP calls them "strong".)
6382 *) Merge the functionality of "dh" and "gendh" programs into a new program
6383 "dhparam". The old programs are retained for now but will handle DH keys
6384 (instead of parameters) in future.
6387 *) Make the ciphers, s_server and s_client programs check the return values
6388 when a new cipher list is set.
6391 *) Enhance the SSL/TLS cipher mechanism to correctly handle the TLS 56bit
6392 ciphers. Before when the 56bit ciphers were enabled the sorting was
6395 The syntax for the cipher sorting has been extended to support sorting by
6396 cipher-strength (using the strength_bits hard coded in the tables).
6397 The new command is "@STRENGTH" (see also doc/apps/ciphers.pod).
6399 Fix a bug in the cipher-command parser: when supplying a cipher command
6400 string with an "undefined" symbol (neither command nor alphanumeric
6401 [A-Za-z0-9], ssl_set_cipher_list used to hang in an endless loop. Now
6402 an error is flagged.
6404 Due to the strength-sorting extension, the code of the
6405 ssl_create_cipher_list() function was completely rearranged. I hope that
6406 the readability was also increased :-)
6407 [Lutz Jaenicke <Lutz.Jaenicke@aet.TU-Cottbus.DE>]
6409 *) Minor change to 'x509' utility. The -CAcreateserial option now uses 1
6410 for the first serial number and places 2 in the serial number file. This
6411 avoids problems when the root CA is created with serial number zero and
6412 the first user certificate has the same issuer name and serial number
6416 *) Fixes to X509_ATTRIBUTE utilities, change the 'req' program so it uses
6417 the new code. Add documentation for this stuff.
6420 *) Changes to X509_ATTRIBUTE utilities. These have been renamed from
6421 X509_*() to X509at_*() on the grounds that they don't handle X509
6422 structures and behave in an analagous way to the X509v3 functions:
6423 they shouldn't be called directly but wrapper functions should be used
6426 So we also now have some wrapper functions that call the X509at functions
6427 when passed certificate requests. (TO DO: similar things can be done with
6428 PKCS#7 signed and unsigned attributes, PKCS#12 attributes and a few other
6429 things. Some of these need some d2i or i2d and print functionality
6430 because they handle more complex structures.)
6433 *) Add missing #ifndefs that caused missing symbols when building libssl
6434 as a shared library without RSA. Use #ifndef NO_SSL2 instead of
6435 NO_RSA in ssl/s2*.c.
6436 [Kris Kennaway <kris@hub.freebsd.org>, modified by Ulf Möller]
6438 *) Precautions against using the PRNG uninitialized: RAND_bytes() now
6439 has a return value which indicates the quality of the random data
6440 (1 = ok, 0 = not seeded). Also an error is recorded on the thread's
6441 error queue. New function RAND_pseudo_bytes() generates output that is
6442 guaranteed to be unique but not unpredictable. RAND_add is like
6443 RAND_seed, but takes an extra argument for an entropy estimate
6444 (RAND_seed always assumes full entropy).
6447 *) Do more iterations of Rabin-Miller probable prime test (specifically,
6448 3 for 1024-bit primes, 6 for 512-bit primes, 12 for 256-bit primes
6449 instead of only 2 for all lengths; see BN_prime_checks_for_size definition
6450 in crypto/bn/bn_prime.c for the complete table). This guarantees a
6451 false-positive rate of at most 2^-80 for random input.
6454 *) Rewrite ssl3_read_n (ssl/s3_pkt.c) avoiding a couple of bugs.
6457 *) New function X509_CTX_rget_chain() (renamed to X509_CTX_get1_chain
6458 in the 0.9.5 release), this returns the chain
6459 from an X509_CTX structure with a dup of the stack and all
6460 the X509 reference counts upped: so the stack will exist
6461 after X509_CTX_cleanup() has been called. Modify pkcs12.c
6464 Also make SSL_SESSION_print() print out the verify return
6468 *) Add manpage for the pkcs12 command. Also change the default
6469 behaviour so MAC iteration counts are used unless the new
6470 -nomaciter option is used. This improves file security and
6471 only older versions of MSIE (4.0 for example) need it.
6474 *) Honor the no-xxx Configure options when creating .DEF files.
6477 *) Add PKCS#10 attributes to field table: challengePassword,
6478 unstructuredName and unstructuredAddress. These are taken from
6479 draft PKCS#9 v2.0 but are compatible with v1.2 provided no
6480 international characters are used.
6482 More changes to X509_ATTRIBUTE code: allow the setting of types
6483 based on strings. Remove the 'loc' parameter when adding
6484 attributes because these will be a SET OF encoding which is sorted
6488 *) Initial changes to the 'req' utility to allow request generation
6489 automation. This will allow an application to just generate a template
6490 file containing all the field values and have req construct the
6493 Initial support for X509_ATTRIBUTE handling. Stacks of these are
6494 used all over the place including certificate requests and PKCS#7
6495 structures. They are currently handled manually where necessary with
6496 some primitive wrappers for PKCS#7. The new functions behave in a
6497 manner analogous to the X509 extension functions: they allow
6498 attributes to be looked up by NID and added.
6500 Later something similar to the X509V3 code would be desirable to
6501 automatically handle the encoding, decoding and printing of the
6502 more complex types. The string types like challengePassword can
6503 be handled by the string table functions.
6505 Also modified the multi byte string table handling. Now there is
6506 a 'global mask' which masks out certain types. The table itself
6507 can use the flag STABLE_NO_MASK to ignore the mask setting: this
6508 is useful when for example there is only one permissible type
6509 (as in countryName) and using the mask might result in no valid
6513 *) Clean up 'Finished' handling, and add functions SSL_get_finished and
6514 SSL_get_peer_finished to allow applications to obtain the latest
6515 Finished messages sent to the peer or expected from the peer,
6516 respectively. (SSL_get_peer_finished is usually the Finished message
6517 actually received from the peer, otherwise the protocol will be aborted.)
6519 As the Finished message are message digests of the complete handshake
6520 (with a total of 192 bits for TLS 1.0 and more for SSL 3.0), they can
6521 be used for external authentication procedures when the authentication
6522 provided by SSL/TLS is not desired or is not enough.
6525 *) Enhanced support for Alpha Linux is added. Now ./config checks if
6526 the host supports BWX extension and if Compaq C is present on the
6527 $PATH. Just exploiting of the BWX extension results in 20-30%
6528 performance kick for some algorithms, e.g. DES and RC4 to mention
6529 a couple. Compaq C in turn generates ~20% faster code for MD5 and
6533 *) Add support for MS "fast SGC". This is arguably a violation of the
6534 SSL3/TLS protocol. Netscape SGC does two handshakes: the first with
6535 weak crypto and after checking the certificate is SGC a second one
6536 with strong crypto. MS SGC stops the first handshake after receiving
6537 the server certificate message and sends a second client hello. Since
6538 a server will typically do all the time consuming operations before
6539 expecting any further messages from the client (server key exchange
6540 is the most expensive) there is little difference between the two.
6542 To get OpenSSL to support MS SGC we have to permit a second client
6543 hello message after we have sent server done. In addition we have to
6544 reset the MAC if we do get this second client hello.
6547 *) Add a function 'd2i_AutoPrivateKey()' this will automatically decide
6548 if a DER encoded private key is RSA or DSA traditional format. Changed
6549 d2i_PrivateKey_bio() to use it. This is only needed for the "traditional"
6550 format DER encoded private key. Newer code should use PKCS#8 format which
6551 has the key type encoded in the ASN1 structure. Added DER private key
6552 support to pkcs8 application.
6555 *) SSL 3/TLS 1 servers now don't request certificates when an anonymous
6556 ciphersuites has been selected (as required by the SSL 3/TLS 1
6557 specifications). Exception: When SSL_VERIFY_FAIL_IF_NO_PEER_CERT
6558 is set, we interpret this as a request to violate the specification
6559 (the worst that can happen is a handshake failure, and 'correct'
6560 behaviour would result in a handshake failure anyway).
6563 *) In SSL_CTX_add_session, take into account that there might be multiple
6564 SSL_SESSION structures with the same session ID (e.g. when two threads
6565 concurrently obtain them from an external cache).
6566 The internal cache can handle only one SSL_SESSION with a given ID,
6567 so if there's a conflict, we now throw out the old one to achieve
6571 *) Add OIDs for idea and blowfish in CBC mode. This will allow both
6572 to be used in PKCS#5 v2.0 and S/MIME. Also add checking to
6573 some routines that use cipher OIDs: some ciphers do not have OIDs
6574 defined and so they cannot be used for S/MIME and PKCS#5 v2.0 for
6578 *) Simplify the trust setting structure and code. Now we just have
6579 two sequences of OIDs for trusted and rejected settings. These will
6580 typically have values the same as the extended key usage extension
6581 and any application specific purposes.
6583 The trust checking code now has a default behaviour: it will just
6584 check for an object with the same NID as the passed id. Functions can
6585 be provided to override either the default behaviour or the behaviour
6586 for a given id. SSL client, server and email already have functions
6587 in place for compatibility: they check the NID and also return "trusted"
6588 if the certificate is self signed.
6591 *) Add d2i,i2d bio/fp functions for PrivateKey: these convert the
6592 traditional format into an EVP_PKEY structure.
6595 *) Add a password callback function PEM_cb() which either prompts for
6596 a password if usr_data is NULL or otherwise assumes it is a null
6597 terminated password. Allow passwords to be passed on command line
6598 environment or config files in a few more utilities.
6601 *) Add a bunch of DER and PEM functions to handle PKCS#8 format private
6602 keys. Add some short names for PKCS#8 PBE algorithms and allow them
6603 to be specified on the command line for the pkcs8 and pkcs12 utilities.
6604 Update documentation.
6607 *) Support for ASN1 "NULL" type. This could be handled before by using
6608 ASN1_TYPE but there wasn't any function that would try to read a NULL
6609 and produce an error if it couldn't. For compatibility we also have
6610 ASN1_NULL_new() and ASN1_NULL_free() functions but these are faked and
6611 don't allocate anything because they don't need to.
6614 *) Initial support for MacOS is now provided. Examine INSTALL.MacOS
6616 [Andy Polyakov, Roy Woods <roy@centicsystems.ca>]
6618 *) Rebuild of the memory allocation routines used by OpenSSL code and
6619 possibly others as well. The purpose is to make an interface that
6620 provide hooks so anyone can build a separate set of allocation and
6621 deallocation routines to be used by OpenSSL, for example memory
6622 pool implementations, or something else, which was previously hard
6623 since Malloc(), Realloc() and Free() were defined as macros having
6624 the values malloc, realloc and free, respectively (except for Win32
6625 compilations). The same is provided for memory debugging code.
6626 OpenSSL already comes with functionality to find memory leaks, but
6627 this gives people a chance to debug other memory problems.
6629 With these changes, a new set of functions and macros have appeared:
6631 CRYPTO_set_mem_debug_functions() [F]
6632 CRYPTO_get_mem_debug_functions() [F]
6633 CRYPTO_dbg_set_options() [F]
6634 CRYPTO_dbg_get_options() [F]
6635 CRYPTO_malloc_debug_init() [M]
6637 The memory debug functions are NULL by default, unless the library
6638 is compiled with CRYPTO_MDEBUG or friends is defined. If someone
6639 wants to debug memory anyway, CRYPTO_malloc_debug_init() (which
6640 gives the standard debugging functions that come with OpenSSL) or
6641 CRYPTO_set_mem_debug_functions() (tells OpenSSL to use functions
6642 provided by the library user) must be used. When the standard
6643 debugging functions are used, CRYPTO_dbg_set_options can be used to
6644 request additional information:
6645 CRYPTO_dbg_set_options(V_CYRPTO_MDEBUG_xxx) corresponds to setting
6646 the CRYPTO_MDEBUG_xxx macro when compiling the library.
6648 Also, things like CRYPTO_set_mem_functions will always give the
6649 expected result (the new set of functions is used for allocation
6650 and deallocation) at all times, regardless of platform and compiler
6653 To finish it up, some functions that were never use in any other
6654 way than through macros have a new API and new semantic:
6657 CRYPTO_dbg_realloc()
6660 All macros of value have retained their old syntax.
6661 [Richard Levitte and Bodo Moeller]
6663 *) Some S/MIME fixes. The OID for SMIMECapabilities was wrong, the
6664 ordering of SMIMECapabilities wasn't in "strength order" and there
6665 was a missing NULL in the AlgorithmIdentifier for the SHA1 signature
6669 *) Some ASN1 types with illegal zero length encoding (INTEGER,
6670 ENUMERATED and OBJECT IDENTIFIER) choked the ASN1 routines.
6671 [Frans Heymans <fheymans@isaserver.be>, modified by Steve Henson]
6673 *) Merge in my S/MIME library for OpenSSL. This provides a simple
6674 S/MIME API on top of the PKCS#7 code, a MIME parser (with enough
6675 functionality to handle multipart/signed properly) and a utility
6676 called 'smime' to call all this stuff. This is based on code I
6677 originally wrote for Celo who have kindly allowed it to be
6678 included in OpenSSL.
6681 *) Add variants des_set_key_checked and des_set_key_unchecked of
6682 des_set_key (aka des_key_sched). Global variable des_check_key
6683 decides which of these is called by des_set_key; this way
6684 des_check_key behaves as it always did, but applications and
6685 the library itself, which was buggy for des_check_key == 1,
6686 have a cleaner way to pick the version they need.
6689 *) New function PKCS12_newpass() which changes the password of a
6693 *) Modify X509_TRUST and X509_PURPOSE so it also uses a static and
6694 dynamic mix. In both cases the ids can be used as an index into the
6695 table. Also modified the X509_TRUST_add() and X509_PURPOSE_add()
6696 functions so they accept a list of the field values and the
6697 application doesn't need to directly manipulate the X509_TRUST
6701 *) Modify the ASN1_STRING_TABLE stuff so it also uses bsearch and doesn't
6705 *) Modify the way the V3 extension code looks up extensions. This now
6706 works in a similar way to the object code: we have some "standard"
6707 extensions in a static table which is searched with OBJ_bsearch()
6708 and the application can add dynamic ones if needed. The file
6709 crypto/x509v3/ext_dat.h now has the info: this file needs to be
6710 updated whenever a new extension is added to the core code and kept
6711 in ext_nid order. There is a simple program 'tabtest.c' which checks
6712 this. New extensions are not added too often so this file can readily
6713 be maintained manually.
6715 There are two big advantages in doing things this way. The extensions
6716 can be looked up immediately and no longer need to be "added" using
6717 X509V3_add_standard_extensions(): this function now does nothing.
6718 [Side note: I get *lots* of email saying the extension code doesn't
6719 work because people forget to call this function]
6720 Also no dynamic allocation is done unless new extensions are added:
6721 so if we don't add custom extensions there is no need to call
6722 X509V3_EXT_cleanup().
6725 *) Modify enc utility's salting as follows: make salting the default. Add a
6726 magic header, so unsalted files fail gracefully instead of just decrypting
6727 to garbage. This is because not salting is a big security hole, so people
6728 should be discouraged from doing it.
6731 *) Fixes and enhancements to the 'x509' utility. It allowed a message
6732 digest to be passed on the command line but it only used this
6733 parameter when signing a certificate. Modified so all relevant
6734 operations are affected by the digest parameter including the
6735 -fingerprint and -x509toreq options. Also -x509toreq choked if a
6736 DSA key was used because it didn't fix the digest.
6739 *) Initial certificate chain verify code. Currently tests the untrusted
6740 certificates for consistency with the verify purpose (which is set
6741 when the X509_STORE_CTX structure is set up) and checks the pathlength.
6743 There is a NO_CHAIN_VERIFY compilation option to keep the old behaviour:
6744 this is because it will reject chains with invalid extensions whereas
6745 every previous version of OpenSSL and SSLeay made no checks at all.
6747 Trust code: checks the root CA for the relevant trust settings. Trust
6748 settings have an initial value consistent with the verify purpose: e.g.
6749 if the verify purpose is for SSL client use it expects the CA to be
6750 trusted for SSL client use. However the default value can be changed to
6751 permit custom trust settings: one example of this would be to only trust
6752 certificates from a specific "secure" set of CAs.
6754 Also added X509_STORE_CTX_new() and X509_STORE_CTX_free() functions
6755 which should be used for version portability: especially since the
6756 verify structure is likely to change more often now.
6758 SSL integration. Add purpose and trust to SSL_CTX and SSL and functions
6759 to set them. If not set then assume SSL clients will verify SSL servers
6762 Two new options to the verify program: -untrusted allows a set of
6763 untrusted certificates to be passed in and -purpose which sets the
6764 intended purpose of the certificate. If a purpose is set then the
6765 new chain verify code is used to check extension consistency.
6768 *) Support for the authority information access extension.
6771 *) Modify RSA and DSA PEM read routines to transparently handle
6772 PKCS#8 format private keys. New *_PUBKEY_* functions that handle
6773 public keys in a format compatible with certificate
6774 SubjectPublicKeyInfo structures. Unfortunately there were already
6775 functions called *_PublicKey_* which used various odd formats so
6776 these are retained for compatibility: however the DSA variants were
6777 never in a public release so they have been deleted. Changed dsa/rsa
6778 utilities to handle the new format: note no releases ever handled public
6779 keys so we should be OK.
6781 The primary motivation for this change is to avoid the same fiasco
6782 that dogs private keys: there are several incompatible private key
6783 formats some of which are standard and some OpenSSL specific and
6784 require various evil hacks to allow partial transparent handling and
6785 even then it doesn't work with DER formats. Given the option anything
6786 other than PKCS#8 should be dumped: but the other formats have to
6787 stay in the name of compatibility.
6789 With public keys and the benefit of hindsight one standard format
6790 is used which works with EVP_PKEY, RSA or DSA structures: though
6791 it clearly returns an error if you try to read the wrong kind of key.
6793 Added a -pubkey option to the 'x509' utility to output the public key.
6794 Also rename the EVP_PKEY_get_*() to EVP_PKEY_rget_*()
6795 (renamed to EVP_PKEY_get1_*() in the OpenSSL 0.9.5 release) and add
6796 EVP_PKEY_rset_*() functions (renamed to EVP_PKEY_set1_*())
6797 that do the same as the EVP_PKEY_assign_*() except they up the
6798 reference count of the added key (they don't "swallow" the
6802 *) Fixes to crypto/x509/by_file.c the code to read in certificates and
6803 CRLs would fail if the file contained no certificates or no CRLs:
6804 added a new function to read in both types and return the number
6805 read: this means that if none are read it will be an error. The
6806 DER versions of the certificate and CRL reader would always fail
6807 because it isn't possible to mix certificates and CRLs in DER format
6808 without choking one or the other routine. Changed this to just read
6809 a certificate: this is the best we can do. Also modified the code
6810 in apps/verify.c to take notice of return codes: it was previously
6811 attempting to read in certificates from NULL pointers and ignoring
6812 any errors: this is one reason why the cert and CRL reader seemed
6813 to work. It doesn't check return codes from the default certificate
6814 routines: these may well fail if the certificates aren't installed.
6817 *) Code to support otherName option in GeneralName.
6820 *) First update to verify code. Change the verify utility
6821 so it warns if it is passed a self signed certificate:
6822 for consistency with the normal behaviour. X509_verify
6823 has been modified to it will now verify a self signed
6824 certificate if *exactly* the same certificate appears
6825 in the store: it was previously impossible to trust a
6826 single self signed certificate. This means that:
6827 openssl verify ss.pem
6828 now gives a warning about a self signed certificate but
6829 openssl verify -CAfile ss.pem ss.pem
6833 *) For servers, store verify_result in SSL_SESSION data structure
6834 (and add it to external session representation).
6835 This is needed when client certificate verifications fails,
6836 but an application-provided verification callback (set by
6837 SSL_CTX_set_cert_verify_callback) allows accepting the session
6838 anyway (i.e. leaves x509_store_ctx->error != X509_V_OK
6839 but returns 1): When the session is reused, we have to set
6840 ssl->verify_result to the appropriate error code to avoid
6842 [Bodo Moeller, problem pointed out by Lutz Jaenicke]
6844 *) Fix a bug in the new PKCS#7 code: it didn't consider the
6845 case in PKCS7_dataInit() where the signed PKCS7 structure
6846 didn't contain any existing data because it was being created.
6847 [Po-Cheng Chen <pocheng@nst.com.tw>, slightly modified by Steve Henson]
6849 *) Add a salt to the key derivation routines in enc.c. This
6850 forms the first 8 bytes of the encrypted file. Also add a
6851 -S option to allow a salt to be input on the command line.
6854 *) New function X509_cmp(). Oddly enough there wasn't a function
6855 to compare two certificates. We do this by working out the SHA1
6856 hash and comparing that. X509_cmp() will be needed by the trust
6860 *) SSL_get1_session() is like SSL_get_session(), but increments
6861 the reference count in the SSL_SESSION returned.
6862 [Geoff Thorpe <geoff@eu.c2.net>]
6864 *) Fix for 'req': it was adding a null to request attributes.
6865 Also change the X509_LOOKUP and X509_INFO code to handle
6866 certificate auxiliary information.
6869 *) Add support for 40 and 64 bit RC2 and RC4 algorithms: document
6873 *) Add the possibility to add extra information to the memory leak
6874 detecting output, to form tracebacks, showing from where each
6875 allocation was originated: CRYPTO_push_info("constant string") adds
6876 the string plus current file name and line number to a per-thread
6877 stack, CRYPTO_pop_info() does the obvious, CRYPTO_remove_all_info()
6878 is like calling CYRPTO_pop_info() until the stack is empty.
6879 Also updated memory leak detection code to be multi-thread-safe.
6882 *) Add options -text and -noout to pkcs7 utility and delete the
6883 encryption options which never did anything. Update docs.
6886 *) Add options to some of the utilities to allow the pass phrase
6887 to be included on either the command line (not recommended on
6888 OSes like Unix) or read from the environment. Update the
6889 manpages and fix a few bugs.
6892 *) Add a few manpages for some of the openssl commands.
6895 *) Fix the -revoke option in ca. It was freeing up memory twice,
6896 leaking and not finding already revoked certificates.
6899 *) Extensive changes to support certificate auxiliary information.
6900 This involves the use of X509_CERT_AUX structure and X509_AUX
6901 functions. An X509_AUX function such as PEM_read_X509_AUX()
6902 can still read in a certificate file in the usual way but it
6903 will also read in any additional "auxiliary information". By
6904 doing things this way a fair degree of compatibility can be
6905 retained: existing certificates can have this information added
6906 using the new 'x509' options.
6908 Current auxiliary information includes an "alias" and some trust
6909 settings. The trust settings will ultimately be used in enhanced
6910 certificate chain verification routines: currently a certificate
6911 can only be trusted if it is self signed and then it is trusted
6915 *) Fix assembler for Alpha (tested only on DEC OSF not Linux or *BSD).
6916 The problem was that one of the replacement routines had not been working
6917 since SSLeay releases. For now the offending routine has been replaced
6918 with non-optimised assembler. Even so, this now gives around 95%
6919 performance improvement for 1024 bit RSA signs.
6922 *) Hack to fix PKCS#7 decryption when used with some unorthodox RC2
6923 handling. Most clients have the effective key size in bits equal to
6924 the key length in bits: so a 40 bit RC2 key uses a 40 bit (5 byte) key.
6925 A few however don't do this and instead use the size of the decrypted key
6926 to determine the RC2 key length and the AlgorithmIdentifier to determine
6927 the effective key length. In this case the effective key length can still
6928 be 40 bits but the key length can be 168 bits for example. This is fixed
6929 by manually forcing an RC2 key into the EVP_PKEY structure because the
6930 EVP code can't currently handle unusual RC2 key sizes: it always assumes
6931 the key length and effective key length are equal.
6934 *) Add a bunch of functions that should simplify the creation of
6935 X509_NAME structures. Now you should be able to do:
6936 X509_NAME_add_entry_by_txt(nm, "CN", MBSTRING_ASC, "Steve", -1, -1, 0);
6937 and have it automatically work out the correct field type and fill in
6938 the structures. The more adventurous can try:
6939 X509_NAME_add_entry_by_txt(nm, field, MBSTRING_UTF8, str, -1, -1, 0);
6940 and it will (hopefully) work out the correct multibyte encoding.
6943 *) Change the 'req' utility to use the new field handling and multibyte
6944 copy routines. Before the DN field creation was handled in an ad hoc
6945 way in req, ca, and x509 which was rather broken and didn't support
6946 BMPStrings or UTF8Strings. Since some software doesn't implement
6947 BMPStrings or UTF8Strings yet, they can be enabled using the config file
6948 using the dirstring_type option. See the new comment in the default
6949 openssl.cnf for more info.
6952 *) Make crypto/rand/md_rand.c more robust:
6953 - Assure unique random numbers after fork().
6954 - Make sure that concurrent threads access the global counter and
6955 md serializably so that we never lose entropy in them
6956 or use exactly the same state in multiple threads.
6957 Access to the large state is not always serializable because
6958 the additional locking could be a performance killer, and
6959 md should be large enough anyway.
6962 *) New file apps/app_rand.c with commonly needed functionality
6963 for handling the random seed file.
6965 Use the random seed file in some applications that previously did not:
6967 dsaparam -genkey (which also ignored its '-rand' option),
6970 x509 (when signing).
6971 Except on systems with /dev/urandom, it is crucial to have a random
6972 seed file at least for key creation, DSA signing, and for DH exchanges;
6973 for RSA signatures we could do without one.
6975 gendh and gendsa (unlike genrsa) used to read only the first byte
6976 of each file listed in the '-rand' option. The function as previously
6977 found in genrsa is now in app_rand.c and is used by all programs
6978 that support '-rand'.
6981 *) In RAND_write_file, use mode 0600 for creating files;
6982 don't just chmod when it may be too late.
6985 *) Report an error from X509_STORE_load_locations
6986 when X509_LOOKUP_load_file or X509_LOOKUP_add_dir failed.
6989 *) New function ASN1_mbstring_copy() this copies a string in either
6990 ASCII, Unicode, Universal (4 bytes per character) or UTF8 format
6991 into an ASN1_STRING type. A mask of permissible types is passed
6992 and it chooses the "minimal" type to use or an error if not type
6996 *) Add function equivalents to the various macros in asn1.h. The old
6997 macros are retained with an M_ prefix. Code inside the library can
6998 use the M_ macros. External code (including the openssl utility)
6999 should *NOT* in order to be "shared library friendly".
7002 *) Add various functions that can check a certificate's extensions
7003 to see if it usable for various purposes such as SSL client,
7004 server or S/MIME and CAs of these types. This is currently
7005 VERY EXPERIMENTAL but will ultimately be used for certificate chain
7006 verification. Also added a -purpose flag to x509 utility to
7007 print out all the purposes.
7010 *) Add a CRYPTO_EX_DATA to X509 certificate structure and associated
7014 *) New X509V3_{X509,CRL,REVOKED}_get_d2i() functions. These will search
7015 for, obtain and decode and extension and obtain its critical flag.
7016 This allows all the necessary extension code to be handled in a
7017 single function call.
7020 *) RC4 tune-up featuring 30-40% performance improvement on most RISC
7021 platforms. See crypto/rc4/rc4_enc.c for further details.
7024 *) New -noout option to asn1parse. This causes no output to be produced
7025 its main use is when combined with -strparse and -out to extract data
7026 from a file (which may not be in ASN.1 format).
7029 *) Fix for pkcs12 program. It was hashing an invalid certificate pointer
7030 when producing the local key id.
7031 [Richard Levitte <levitte@stacken.kth.se>]
7033 *) New option -dhparam in s_server. This allows a DH parameter file to be
7034 stated explicitly. If it is not stated then it tries the first server
7035 certificate file. The previous behaviour hard coded the filename
7039 *) Add -pubin and -pubout options to the rsa and dsa commands. These allow
7040 a public key to be input or output. For example:
7041 openssl rsa -in key.pem -pubout -out pubkey.pem
7042 Also added necessary DSA public key functions to handle this.
7045 *) Fix so PKCS7_dataVerify() doesn't crash if no certificates are contained
7046 in the message. This was handled by allowing
7047 X509_find_by_issuer_and_serial() to tolerate a NULL passed to it.
7048 [Steve Henson, reported by Sampo Kellomaki <sampo@mail.neuronio.pt>]
7050 *) Fix for bug in d2i_ASN1_bytes(): other ASN1 functions add an extra null
7051 to the end of the strings whereas this didn't. This would cause problems
7052 if strings read with d2i_ASN1_bytes() were later modified.
7053 [Steve Henson, reported by Arne Ansper <arne@ats.cyber.ee>]
7055 *) Fix for base64 decode bug. When a base64 bio reads only one line of
7056 data and it contains EOF it will end up returning an error. This is
7057 caused by input 46 bytes long. The cause is due to the way base64
7058 BIOs find the start of base64 encoded data. They do this by trying a
7059 trial decode on each line until they find one that works. When they
7060 do a flag is set and it starts again knowing it can pass all the
7061 data directly through the decoder. Unfortunately it doesn't reset
7062 the context it uses. This means that if EOF is reached an attempt
7063 is made to pass two EOFs through the context and this causes the
7064 resulting error. This can also cause other problems as well. As is
7065 usual with these problems it takes *ages* to find and the fix is
7066 trivial: move one line.
7067 [Steve Henson, reported by ian@uns.ns.ac.yu (Ivan Nejgebauer) ]
7069 *) Ugly workaround to get s_client and s_server working under Windows. The
7070 old code wouldn't work because it needed to select() on sockets and the
7071 tty (for keypresses and to see if data could be written). Win32 only
7072 supports select() on sockets so we select() with a 1s timeout on the
7073 sockets and then see if any characters are waiting to be read, if none
7074 are present then we retry, we also assume we can always write data to
7075 the tty. This isn't nice because the code then blocks until we've
7076 received a complete line of data and it is effectively polling the
7077 keyboard at 1s intervals: however it's quite a bit better than not
7078 working at all :-) A dedicated Windows application might handle this
7079 with an event loop for example.
7082 *) Enhance RSA_METHOD structure. Now there are two extra methods, rsa_sign
7083 and rsa_verify. When the RSA_FLAGS_SIGN_VER option is set these functions
7084 will be called when RSA_sign() and RSA_verify() are used. This is useful
7085 if rsa_pub_dec() and rsa_priv_enc() equivalents are not available.
7086 For this to work properly RSA_public_decrypt() and RSA_private_encrypt()
7087 should *not* be used: RSA_sign() and RSA_verify() must be used instead.
7088 This necessitated the support of an extra signature type NID_md5_sha1
7089 for SSL signatures and modifications to the SSL library to use it instead
7090 of calling RSA_public_decrypt() and RSA_private_encrypt().
7093 *) Add new -verify -CAfile and -CApath options to the crl program, these
7094 will lookup a CRL issuers certificate and verify the signature in a
7095 similar way to the verify program. Tidy up the crl program so it
7096 no longer accesses structures directly. Make the ASN1 CRL parsing a bit
7097 less strict. It will now permit CRL extensions even if it is not
7098 a V2 CRL: this will allow it to tolerate some broken CRLs.
7101 *) Initialize all non-automatic variables each time one of the openssl
7102 sub-programs is started (this is necessary as they may be started
7103 multiple times from the "OpenSSL>" prompt).
7104 [Lennart Bang, Bodo Moeller]
7106 *) Preliminary compilation option RSA_NULL which disables RSA crypto without
7107 removing all other RSA functionality (this is what NO_RSA does). This
7108 is so (for example) those in the US can disable those operations covered
7109 by the RSA patent while allowing storage and parsing of RSA keys and RSA
7113 *) Non-copying interface to BIO pairs.
7114 (still largely untested)
7117 *) New function ANS1_tag2str() to convert an ASN1 tag to a descriptive
7118 ASCII string. This was handled independently in various places before.
7121 *) New functions UTF8_getc() and UTF8_putc() that parse and generate
7122 UTF8 strings a character at a time.
7125 *) Use client_version from client hello to select the protocol
7126 (s23_srvr.c) and for RSA client key exchange verification
7127 (s3_srvr.c), as required by the SSL 3.0/TLS 1.0 specifications.
7130 *) Add various utility functions to handle SPKACs, these were previously
7131 handled by poking round in the structure internals. Added new function
7132 NETSCAPE_SPKI_print() to print out SPKAC and a new utility 'spkac' to
7133 print, verify and generate SPKACs. Based on an original idea from
7134 Massimiliano Pala <madwolf@comune.modena.it> but extensively modified.
7137 *) RIPEMD160 is operational on all platforms and is back in 'make test'.
7140 *) Allow the config file extension section to be overwritten on the
7141 command line. Based on an original idea from Massimiliano Pala
7142 <madwolf@comune.modena.it>. The new option is called -extensions
7143 and can be applied to ca, req and x509. Also -reqexts to override
7144 the request extensions in req and -crlexts to override the crl extensions
7148 *) Add new feature to the SPKAC handling in ca. Now you can include
7149 the same field multiple times by preceding it by "XXXX." for example:
7152 this is the same syntax as used in the req config file.
7155 *) Allow certificate extensions to be added to certificate requests. These
7156 are specified in a 'req_extensions' option of the req section of the
7157 config file. They can be printed out with the -text option to req but
7158 are otherwise ignored at present.
7161 *) Fix a horrible bug in enc_read() in crypto/evp/bio_enc.c: if the first
7162 data read consists of only the final block it would not decrypted because
7163 EVP_CipherUpdate() would correctly report zero bytes had been decrypted.
7164 A misplaced 'break' also meant the decrypted final block might not be
7165 copied until the next read.
7168 *) Initial support for DH_METHOD. Again based on RSA_METHOD. Also added
7169 a few extra parameters to the DH structure: these will be useful if
7170 for example we want the value of 'q' or implement X9.42 DH.
7173 *) Initial support for DSA_METHOD. This is based on the RSA_METHOD and
7174 provides hooks that allow the default DSA functions or functions on a
7175 "per key" basis to be replaced. This allows hardware acceleration and
7176 hardware key storage to be handled without major modification to the
7177 library. Also added low level modexp hooks and CRYPTO_EX structure and
7178 associated functions.
7181 *) Add a new flag to memory BIOs, BIO_FLAG_MEM_RDONLY. This marks the BIO
7182 as "read only": it can't be written to and the buffer it points to will
7183 not be freed. Reading from a read only BIO is much more efficient than
7184 a normal memory BIO. This was added because there are several times when
7185 an area of memory needs to be read from a BIO. The previous method was
7186 to create a memory BIO and write the data to it, this results in two
7187 copies of the data and an O(n^2) reading algorithm. There is a new
7188 function BIO_new_mem_buf() which creates a read only memory BIO from
7189 an area of memory. Also modified the PKCS#7 routines to use read only
7193 *) Bugfix: ssl23_get_client_hello did not work properly when called in
7194 state SSL23_ST_SR_CLNT_HELLO_B, i.e. when the first 7 bytes of
7195 a SSLv2-compatible client hello for SSLv3 or TLSv1 could be read,
7196 but a retry condition occured while trying to read the rest.
7199 *) The PKCS7_ENC_CONTENT_new() function was setting the content type as
7200 NID_pkcs7_encrypted by default: this was wrong since this should almost
7201 always be NID_pkcs7_data. Also modified the PKCS7_set_type() to handle
7202 the encrypted data type: this is a more sensible place to put it and it
7203 allows the PKCS#12 code to be tidied up that duplicated this
7207 *) Changed obj_dat.pl script so it takes its input and output files on
7208 the command line. This should avoid shell escape redirection problems
7212 *) Initial support for certificate extension requests, these are included
7213 in things like Xenroll certificate requests. Included functions to allow
7214 extensions to be obtained and added.
7217 *) -crlf option to s_client and s_server for sending newlines as
7218 CRLF (as required by many protocols).
7221 Changes between 0.9.3a and 0.9.4 [09 Aug 1999]
7223 *) Install libRSAglue.a when OpenSSL is built with RSAref.
7224 [Ralf S. Engelschall]
7226 *) A few more ``#ifndef NO_FP_API / #endif'' pairs for consistency.
7227 [Andrija Antonijevic <TheAntony2@bigfoot.com>]
7229 *) Fix -startdate and -enddate (which was missing) arguments to 'ca'
7233 *) New function DSA_dup_DH, which duplicates DSA parameters/keys as
7234 DH parameters/keys (q is lost during that conversion, but the resulting
7235 DH parameters contain its length).
7237 For 1024-bit p, DSA_generate_parameters followed by DSA_dup_DH is
7238 much faster than DH_generate_parameters (which creates parameters
7239 where p = 2*q + 1), and also the smaller q makes DH computations
7240 much more efficient (160-bit exponentiation instead of 1024-bit
7241 exponentiation); so this provides a convenient way to support DHE
7242 ciphersuites in SSL/TLS servers (see ssl/ssltest.c). It is of
7243 utter importance to use
7244 SSL_CTX_set_options(s_ctx, SSL_OP_SINGLE_DH_USE);
7246 SSL_set_options(s_ctx, SSL_OP_SINGLE_DH_USE);
7247 when such DH parameters are used, because otherwise small subgroup
7248 attacks may become possible!
7251 *) Avoid memory leak in i2d_DHparams.
7254 *) Allow the -k option to be used more than once in the enc program:
7255 this allows the same encrypted message to be read by multiple recipients.
7258 *) New function OBJ_obj2txt(buf, buf_len, a, no_name), this converts
7259 an ASN1_OBJECT to a text string. If the "no_name" parameter is set then
7260 it will always use the numerical form of the OID, even if it has a short
7264 *) Added an extra RSA flag: RSA_FLAG_EXT_PKEY. Previously the rsa_mod_exp
7265 method only got called if p,q,dmp1,dmq1,iqmp components were present,
7266 otherwise bn_mod_exp was called. In the case of hardware keys for example
7267 no private key components need be present and it might store extra data
7268 in the RSA structure, which cannot be accessed from bn_mod_exp.
7269 By setting RSA_FLAG_EXT_PKEY rsa_mod_exp will always be called for
7270 private key operations.
7273 *) Added support for SPARC Linux.
7276 *) pem_password_cb function type incompatibly changed from
7277 typedef int pem_password_cb(char *buf, int size, int rwflag);
7279 ....(char *buf, int size, int rwflag, void *userdata);
7280 so that applications can pass data to their callbacks:
7281 The PEM[_ASN1]_{read,write}... functions and macros now take an
7282 additional void * argument, which is just handed through whenever
7283 the password callback is called.
7284 [Damien Miller <dmiller@ilogic.com.au>; tiny changes by Bodo Moeller]
7286 New function SSL_CTX_set_default_passwd_cb_userdata.
7288 Compatibility note: As many C implementations push function arguments
7289 onto the stack in reverse order, the new library version is likely to
7290 interoperate with programs that have been compiled with the old
7291 pem_password_cb definition (PEM_whatever takes some data that
7292 happens to be on the stack as its last argument, and the callback
7293 just ignores this garbage); but there is no guarantee whatsoever that
7296 *) The -DPLATFORM="\"$(PLATFORM)\"" definition and the similar -DCFLAGS=...
7297 (both in crypto/Makefile.ssl for use by crypto/cversion.c) caused
7298 problems not only on Windows, but also on some Unix platforms.
7299 To avoid problematic command lines, these definitions are now in an
7300 auto-generated file crypto/buildinf.h (created by crypto/Makefile.ssl
7301 for standard "make" builds, by util/mk1mf.pl for "mk1mf" builds).
7304 *) MIPS III/IV assembler module is reimplemented.
7307 *) More DES library cleanups: remove references to srand/rand and
7308 delete an unused file.
7311 *) Add support for the the free Netwide assembler (NASM) under Win32,
7312 since not many people have MASM (ml) and it can be hard to obtain.
7313 This is currently experimental but it seems to work OK and pass all
7314 the tests. Check out INSTALL.W32 for info.
7317 *) Fix memory leaks in s3_clnt.c: All non-anonymous SSL3/TLS1 connections
7318 without temporary keys kept an extra copy of the server key,
7319 and connections with temporary keys did not free everything in case
7323 *) New function RSA_check_key and new openssl rsa option -check
7324 for verifying the consistency of RSA keys.
7325 [Ulf Moeller, Bodo Moeller]
7327 *) Various changes to make Win32 compile work:
7328 1. Casts to avoid "loss of data" warnings in p5_crpt2.c
7329 2. Change unsigned int to int in b_dump.c to avoid "signed/unsigned
7330 comparison" warnings.
7331 3. Add sk_<TYPE>_sort to DEF file generator and do make update.
7334 *) Add a debugging option to PKCS#5 v2 key generation function: when
7335 you #define DEBUG_PKCS5V2 passwords, salts, iteration counts and
7336 derived keys are printed to stderr.
7339 *) Copy the flags in ASN1_STRING_dup().
7340 [Roman E. Pavlov <pre@mo.msk.ru>]
7342 *) The x509 application mishandled signing requests containing DSA
7343 keys when the signing key was also DSA and the parameters didn't match.
7345 It was supposed to omit the parameters when they matched the signing key:
7346 the verifying software was then supposed to automatically use the CA's
7347 parameters if they were absent from the end user certificate.
7349 Omitting parameters is no longer recommended. The test was also
7350 the wrong way round! This was probably due to unusual behaviour in
7351 EVP_cmp_parameters() which returns 1 if the parameters match.
7352 This meant that parameters were omitted when they *didn't* match and
7353 the certificate was useless. Certificates signed with 'ca' didn't have
7355 [Steve Henson, reported by Doug Erickson <Doug.Erickson@Part.NET>]
7357 *) Memory leak checking (-DCRYPTO_MDEBUG) had some problems.
7358 The interface is as follows:
7359 Applications can use
7360 CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_ON) aka MemCheck_start(),
7361 CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_OFF) aka MemCheck_stop();
7362 "off" is now the default.
7363 The library internally uses
7364 CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_DISABLE) aka MemCheck_off(),
7365 CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_ENABLE) aka MemCheck_on()
7366 to disable memory-checking temporarily.
7368 Some inconsistent states that previously were possible (and were
7369 even the default) are now avoided.
7371 -DCRYPTO_MDEBUG_TIME is new and additionally stores the current time
7372 with each memory chunk allocated; this is occasionally more helpful
7373 than just having a counter.
7375 -DCRYPTO_MDEBUG_THREAD is also new and adds the thread ID.
7377 -DCRYPTO_MDEBUG_ALL enables all of the above, plus any future
7381 *) Introduce "mode" for SSL structures (with defaults in SSL_CTX),
7382 which largely parallels "options", but is for changing API behaviour,
7383 whereas "options" are about protocol behaviour.
7384 Initial "mode" flags are:
7386 SSL_MODE_ENABLE_PARTIAL_WRITE Allow SSL_write to report success when
7387 a single record has been written.
7388 SSL_MODE_ACCEPT_MOVING_WRITE_BUFFER Don't insist that SSL_write
7389 retries use the same buffer location.
7390 (But all of the contents must be
7394 *) Bugfix: SSL_set_options ignored its parameter, only SSL_CTX_set_options
7397 *) Fix problems with no-hmac etc.
7398 [Ulf Möller, pointed out by Brian Wellington <bwelling@tislabs.com>]
7400 *) New functions RSA_get_default_method(), RSA_set_method() and
7401 RSA_get_method(). These allows replacement of RSA_METHODs without having
7402 to mess around with the internals of an RSA structure.
7405 *) Fix memory leaks in DSA_do_sign and DSA_is_prime.
7406 Also really enable memory leak checks in openssl.c and in some
7408 [Chad C. Mulligan, Bodo Moeller]
7410 *) Fix a bug in d2i_ASN1_INTEGER() and i2d_ASN1_INTEGER() which can mess
7411 up the length of negative integers. This has now been simplified to just
7412 store the length when it is first determined and use it later, rather
7413 than trying to keep track of where data is copied and updating it to
7415 [Steve Henson, reported by Brien Wheeler
7416 <bwheeler@authentica-security.com>]
7418 *) Add a new function PKCS7_signatureVerify. This allows the verification
7419 of a PKCS#7 signature but with the signing certificate passed to the
7420 function itself. This contrasts with PKCS7_dataVerify which assumes the
7421 certificate is present in the PKCS#7 structure. This isn't always the
7422 case: certificates can be omitted from a PKCS#7 structure and be
7423 distributed by "out of band" means (such as a certificate database).
7426 *) Complete the PEM_* macros with DECLARE_PEM versions to replace the
7427 function prototypes in pem.h, also change util/mkdef.pl to add the
7428 necessary function names.
7431 *) mk1mf.pl (used by Windows builds) did not properly read the
7432 options set by Configure in the top level Makefile, and Configure
7433 was not even able to write more than one option correctly.
7434 Fixed, now "no-idea no-rc5 -DCRYPTO_MDEBUG" etc. works as intended.
7437 *) New functions CONF_load_bio() and CONF_load_fp() to allow a config
7438 file to be loaded from a BIO or FILE pointer. The BIO version will
7439 for example allow memory BIOs to contain config info.
7442 *) New function "CRYPTO_num_locks" that returns CRYPTO_NUM_LOCKS.
7443 Whoever hopes to achieve shared-library compatibility across versions
7444 must use this, not the compile-time macro.
7445 (Exercise 0.9.4: Which is the minimum library version required by
7447 Note: All this applies only to multi-threaded programs, others don't
7451 *) Add missing case to s3_clnt.c state machine -- one of the new SSL tests
7452 through a BIO pair triggered the default case, i.e.
7453 SSLerr(...,SSL_R_UNKNOWN_STATE).
7456 *) New "BIO pair" concept (crypto/bio/bss_bio.c) so that applications
7457 can use the SSL library even if none of the specific BIOs is
7461 *) Fix a bug in i2d_DSAPublicKey() which meant it returned the wrong value
7462 for the encoded length.
7463 [Jeon KyoungHo <khjeon@sds.samsung.co.kr>]
7465 *) Add initial documentation of the X509V3 functions.
7468 *) Add a new pair of functions PEM_write_PKCS8PrivateKey() and
7469 PEM_write_bio_PKCS8PrivateKey() that are equivalent to
7470 PEM_write_PrivateKey() and PEM_write_bio_PrivateKey() but use the more
7471 secure PKCS#8 private key format with a high iteration count.
7474 *) Fix determination of Perl interpreter: A perl or perl5
7475 _directory_ in $PATH was also accepted as the interpreter.
7476 [Ralf S. Engelschall]
7478 *) Fix demos/sign/sign.c: well there wasn't anything strictly speaking
7479 wrong with it but it was very old and did things like calling
7480 PEM_ASN1_read() directly and used MD5 for the hash not to mention some
7484 *) Fix demos/selfsign.c: it used obsolete and deleted functions, changed
7485 to use the new extension code.
7488 *) Implement the PEM_read/PEM_write functions in crypto/pem/pem_all.c
7489 with macros. This should make it easier to change their form, add extra
7490 arguments etc. Fix a few PEM prototypes which didn't have cipher as a
7494 *) Add to configuration table a new entry that can specify an alternative
7495 name for unistd.h (for pre-POSIX systems); we need this for NeXTstep,
7496 according to Mark Crispin <MRC@Panda.COM>.
7500 *) DES CBC did not update the IV. Weird.
7503 des_cbc_encrypt does not update the IV, but des_ncbc_encrypt does.
7504 Changing the behaviour of the former might break existing programs --
7505 where IV updating is needed, des_ncbc_encrypt can be used.
7508 *) When bntest is run from "make test" it drives bc to check its
7509 calculations, as well as internally checking them. If an internal check
7510 fails, it needs to cause bc to give a non-zero result or make test carries
7511 on without noticing the failure. Fixed.
7514 *) DES library cleanups.
7517 *) Add support for PKCS#5 v2.0 PBE algorithms. This will permit PKCS#8 to be
7518 used with any cipher unlike PKCS#5 v1.5 which can at most handle 64 bit
7519 ciphers. NOTE: although the key derivation function has been verified
7520 against some published test vectors it has not been extensively tested
7521 yet. Added a -v2 "cipher" option to pkcs8 application to allow the use
7525 *) Instead of "mkdir -p", which is not fully portable, use new
7526 Perl script "util/mkdir-p.pl".
7529 *) Rewrite the way password based encryption (PBE) is handled. It used to
7530 assume that the ASN1 AlgorithmIdentifier parameter was a PBEParameter
7531 structure. This was true for the PKCS#5 v1.5 and PKCS#12 PBE algorithms
7532 but doesn't apply to PKCS#5 v2.0 where it can be something else. Now
7533 the 'parameter' field of the AlgorithmIdentifier is passed to the
7534 underlying key generation function so it must do its own ASN1 parsing.
7535 This has also changed the EVP_PBE_CipherInit() function which now has a
7536 'parameter' argument instead of literal salt and iteration count values
7537 and the function EVP_PBE_ALGOR_CipherInit() has been deleted.
7540 *) Support for PKCS#5 v1.5 compatible password based encryption algorithms
7541 and PKCS#8 functionality. New 'pkcs8' application linked to openssl.
7542 Needed to change the PEM_STRING_EVP_PKEY value which was just "PRIVATE
7543 KEY" because this clashed with PKCS#8 unencrypted string. Since this
7544 value was just used as a "magic string" and not used directly its
7545 value doesn't matter.
7548 *) Introduce some semblance of const correctness to BN. Shame C doesn't
7552 *) "linux-sparc64" configuration (ultrapenguin).
7553 [Ray Miller <ray.miller@oucs.ox.ac.uk>]
7554 "linux-sparc" configuration.
7555 [Christian Forster <fo@hawo.stw.uni-erlangen.de>]
7557 *) config now generates no-xxx options for missing ciphers.
7560 *) Support the EBCDIC character set (work in progress).
7561 File ebcdic.c not yet included because it has a different license.
7562 [Martin Kraemer <Martin.Kraemer@MchP.Siemens.De>]
7564 *) Support BS2000/OSD-POSIX.
7565 [Martin Kraemer <Martin.Kraemer@MchP.Siemens.De>]
7567 *) Make callbacks for key generation use void * instead of char *.
7570 *) Make S/MIME samples compile (not yet tested).
7573 *) Additional typesafe stacks.
7576 *) New configuration variants "bsdi-elf-gcc" (BSD/OS 4.x).
7580 Changes between 0.9.3 and 0.9.3a [29 May 1999]
7582 *) New configuration variant "sco5-gcc".
7584 *) Updated some demos.
7585 [Sean O Riordain, Wade Scholine]
7587 *) Add missing BIO_free at exit of pkcs12 application.
7590 *) Fix memory leak in conf.c.
7593 *) Updates for Win32 to assembler version of MD5.
7596 *) Set #! path to perl in apps/der_chop to where we found it
7597 instead of using a fixed path.
7600 *) SHA library changes for irix64-mips4-cc.
7603 *) Improvements for VMS support.
7607 Changes between 0.9.2b and 0.9.3 [24 May 1999]
7609 *) Bignum library bug fix. IRIX 6 passes "make test" now!
7610 This also avoids the problems with SC4.2 and unpatched SC5.
7611 [Andy Polyakov <appro@fy.chalmers.se>]
7613 *) New functions sk_num, sk_value and sk_set to replace the previous macros.
7614 These are required because of the typesafe stack would otherwise break
7615 existing code. If old code used a structure member which used to be STACK
7616 and is now STACK_OF (for example cert in a PKCS7_SIGNED structure) with
7617 sk_num or sk_value it would produce an error because the num, data members
7618 are not present in STACK_OF. Now it just produces a warning. sk_set
7619 replaces the old method of assigning a value to sk_value
7620 (e.g. sk_value(x, i) = y) which the library used in a few cases. Any code
7621 that does this will no longer work (and should use sk_set instead) but
7622 this could be regarded as a "questionable" behaviour anyway.
7625 *) Fix most of the other PKCS#7 bugs. The "experimental" code can now
7626 correctly handle encrypted S/MIME data.
7629 *) Change type of various DES function arguments from des_cblock
7630 (which means, in function argument declarations, pointer to char)
7631 to des_cblock * (meaning pointer to array with 8 char elements),
7632 which allows the compiler to do more typechecking; it was like
7633 that back in SSLeay, but with lots of ugly casts.
7635 Introduce new type const_des_cblock.
7638 *) Reorganise the PKCS#7 library and get rid of some of the more obvious
7639 problems: find RecipientInfo structure that matches recipient certificate
7640 and initialise the ASN1 structures properly based on passed cipher.
7643 *) Belatedly make the BN tests actually check the results.
7646 *) Fix the encoding and decoding of negative ASN1 INTEGERS and conversion
7647 to and from BNs: it was completely broken. New compilation option
7648 NEG_PUBKEY_BUG to allow for some broken certificates that encode public
7649 key elements as negative integers.
7652 *) Reorganize and speed up MD5.
7653 [Andy Polyakov <appro@fy.chalmers.se>]
7656 [Richard Levitte <richard@levitte.org>]
7658 *) New option -out to asn1parse to allow the parsed structure to be
7659 output to a file. This is most useful when combined with the -strparse
7660 option to examine the output of things like OCTET STRINGS.
7663 *) Make SSL library a little more fool-proof by not requiring any longer
7664 that SSL_set_{accept,connect}_state be called before
7665 SSL_{accept,connect} may be used (SSL_set_..._state is omitted
7666 in many applications because usually everything *appeared* to work as
7667 intended anyway -- now it really works as intended).
7670 *) Move openssl.cnf out of lib/.
7673 *) Fix various things to let OpenSSL even pass ``egcc -pipe -O2 -Wall
7674 -Wshadow -Wpointer-arith -Wcast-align -Wmissing-prototypes
7675 -Wmissing-declarations -Wnested-externs -Winline'' with EGCS 1.1.2+
7676 [Ralf S. Engelschall]
7678 *) Various fixes to the EVP and PKCS#7 code. It may now be able to
7679 handle PKCS#7 enveloped data properly.
7680 [Sebastian Akerman <sak@parallelconsulting.com>, modified by Steve]
7682 *) Create a duplicate of the SSL_CTX's CERT in SSL_new instead of
7683 copying pointers. The cert_st handling is changed by this in
7684 various ways (and thus what used to be known as ctx->default_cert
7685 is now called ctx->cert, since we don't resort to s->ctx->[default_]cert
7686 any longer when s->cert does not give us what we need).
7687 ssl_cert_instantiate becomes obsolete by this change.
7688 As soon as we've got the new code right (possibly it already is?),
7689 we have solved a couple of bugs of the earlier code where s->cert
7690 was used as if it could not have been shared with other SSL structures.
7692 Note that using the SSL API in certain dirty ways now will result
7693 in different behaviour than observed with earlier library versions:
7694 Changing settings for an SSL_CTX *ctx after having done s = SSL_new(ctx)
7695 does not influence s as it used to.
7697 In order to clean up things more thoroughly, inside SSL_SESSION
7698 we don't use CERT any longer, but a new structure SESS_CERT
7699 that holds per-session data (if available); currently, this is
7700 the peer's certificate chain and, for clients, the server's certificate
7701 and temporary key. CERT holds only those values that can have
7702 meaningful defaults in an SSL_CTX.
7705 *) New function X509V3_EXT_i2d() to create an X509_EXTENSION structure
7706 from the internal representation. Various PKCS#7 fixes: remove some
7707 evil casts and set the enc_dig_alg field properly based on the signing
7711 *) Allow PKCS#12 password to be set from the command line or the
7712 environment. Let 'ca' get its config file name from the environment
7713 variables "OPENSSL_CONF" or "SSLEAY_CONF" (for consistency with 'req'
7717 *) Allow certificate policies extension to use an IA5STRING for the
7718 organization field. This is contrary to the PKIX definition but
7719 VeriSign uses it and IE5 only recognises this form. Document 'x509'
7723 *) Add PEDANTIC compiler flag to allow compilation with gcc -pedantic,
7724 without disallowing inline assembler and the like for non-pedantic builds.
7727 *) Support Borland C++ builder.
7728 [Janez Jere <jj@void.si>, modified by Ulf Möller]
7733 *) SHA-1 cleanups and performance enhancements.
7734 [Andy Polyakov <appro@fy.chalmers.se>]
7736 *) Sparc v8plus assembler for the bignum library.
7737 [Andy Polyakov <appro@fy.chalmers.se>]
7739 *) Accept any -xxx and +xxx compiler options in Configure.
7742 *) Update HPUX configuration.
7745 *) Add missing sk_<type>_unshift() function to safestack.h
7746 [Ralf S. Engelschall]
7748 *) New function SSL_CTX_use_certificate_chain_file that sets the
7749 "extra_cert"s in addition to the certificate. (This makes sense
7750 only for "PEM" format files, as chains as a whole are not
7754 *) Support verify_depth from the SSL API.
7755 x509_vfy.c had what can be considered an off-by-one-error:
7756 Its depth (which was not part of the external interface)
7757 was actually counting the number of certificates in a chain;
7758 now it really counts the depth.
7761 *) Bugfix in crypto/x509/x509_cmp.c: The SSLerr macro was used
7762 instead of X509err, which often resulted in confusing error
7763 messages since the error codes are not globally unique
7764 (e.g. an alleged error in ssl3_accept when a certificate
7765 didn't match the private key).
7767 *) New function SSL_CTX_set_session_id_context that allows to set a default
7768 value (so that you don't need SSL_set_session_id_context for each
7769 connection using the SSL_CTX).
7772 *) OAEP decoding bug fix.
7775 *) Support INSTALL_PREFIX for package builders, as proposed by
7779 *) New Configure options "threads" and "no-threads". For systems
7780 where the proper compiler options are known (currently Solaris
7781 and Linux), "threads" is the default.
7784 *) New script util/mklink.pl as a faster substitute for util/mklink.sh.
7787 *) Install various scripts to $(OPENSSLDIR)/misc, not to
7788 $(INSTALLTOP)/bin -- they shouldn't clutter directories
7789 such as /usr/local/bin.
7792 *) "make linux-shared" to build shared libraries.
7793 [Niels Poppe <niels@netbox.org>]
7795 *) New Configure option no-<cipher> (rsa, idea, rc5, ...).
7798 *) Add the PKCS#12 API documentation to openssl.txt. Preliminary support for
7799 extension adding in x509 utility.
7802 *) Remove NOPROTO sections and error code comments.
7805 *) Partial rewrite of the DEF file generator to now parse the ANSI
7809 *) New Configure options --prefix=DIR and --openssldir=DIR.
7812 *) Complete rewrite of the error code script(s). It is all now handled
7813 by one script at the top level which handles error code gathering,
7814 header rewriting and C source file generation. It should be much better
7815 than the old method: it now uses a modified version of Ulf's parser to
7816 read the ANSI prototypes in all header files (thus the old K&R definitions
7817 aren't needed for error creation any more) and do a better job of
7818 translating function codes into names. The old 'ASN1 error code imbedded
7819 in a comment' is no longer necessary and it doesn't use .err files which
7820 have now been deleted. Also the error code call doesn't have to appear all
7821 on one line (which resulted in some large lines...).
7824 *) Change #include filenames from <foo.h> to <openssl/foo.h>.
7827 *) Change behaviour of ssl2_read when facing length-0 packets: Don't return
7828 0 (which usually indicates a closed connection), but continue reading.
7831 *) Fix some race conditions.
7834 *) Add support for CRL distribution points extension. Add Certificate
7835 Policies and CRL distribution points documentation.
7838 *) Move the autogenerated header file parts to crypto/opensslconf.h.
7841 *) Fix new 56-bit DES export ciphersuites: they were using 7 bytes instead of
7842 8 of keying material. Merlin has also confirmed interop with this fix
7843 between OpenSSL and Baltimore C/SSL 2.0 and J/SSL 2.0.
7844 [Merlin Hughes <merlin@baltimore.ie>]
7846 *) Fix lots of warnings.
7847 [Richard Levitte <levitte@stacken.kth.se>]
7849 *) In add_cert_dir() in crypto/x509/by_dir.c, break out of the loop if
7850 the directory spec didn't end with a LIST_SEPARATOR_CHAR.
7851 [Richard Levitte <levitte@stacken.kth.se>]
7853 *) Fix problems with sizeof(long) == 8.
7854 [Andy Polyakov <appro@fy.chalmers.se>]
7856 *) Change functions to ANSI C.
7859 *) Fix typos in error codes.
7860 [Martin Kraemer <Martin.Kraemer@MchP.Siemens.De>, Ulf Möller]
7862 *) Remove defunct assembler files from Configure.
7865 *) SPARC v8 assembler BIGNUM implementation.
7866 [Andy Polyakov <appro@fy.chalmers.se>]
7868 *) Support for Certificate Policies extension: both print and set.
7869 Various additions to support the r2i method this uses.
7872 *) A lot of constification, and fix a bug in X509_NAME_oneline() that could
7873 return a const string when you are expecting an allocated buffer.
7876 *) Add support for ASN1 types UTF8String and VISIBLESTRING, also the CHOICE
7877 types DirectoryString and DisplayText.
7880 *) Add code to allow r2i extensions to access the configuration database,
7881 add an LHASH database driver and add several ctx helper functions.
7884 *) Fix an evil bug in bn_expand2() which caused various BN functions to
7885 fail when they extended the size of a BIGNUM.
7888 *) Various utility functions to handle SXNet extension. Modify mkdef.pl to
7889 support typesafe stack.
7892 *) Fix typo in SSL_[gs]et_options().
7893 [Nils Frostberg <nils@medcom.se>]
7895 *) Delete various functions and files that belonged to the (now obsolete)
7896 old X509V3 handling code.
7899 *) New Configure option "rsaref".
7902 *) Don't auto-generate pem.h.
7905 *) Introduce type-safe ASN.1 SETs.
7908 *) Convert various additional casted stacks to type-safe STACK_OF() variants.
7909 [Ben Laurie, Ralf S. Engelschall, Steve Henson]
7911 *) Introduce type-safe STACKs. This will almost certainly break lots of code
7912 that links with OpenSSL (well at least cause lots of warnings), but fear
7913 not: the conversion is trivial, and it eliminates loads of evil casts. A
7914 few STACKed things have been converted already. Feel free to convert more.
7915 In the fullness of time, I'll do away with the STACK type altogether.
7918 *) Add `openssl ca -revoke <certfile>' facility which revokes a certificate
7919 specified in <certfile> by updating the entry in the index.txt file.
7920 This way one no longer has to edit the index.txt file manually for
7921 revoking a certificate. The -revoke option does the gory details now.
7922 [Massimiliano Pala <madwolf@openca.org>, Ralf S. Engelschall]
7924 *) Fix `openssl crl -noout -text' combination where `-noout' killed the
7925 `-text' option at all and this way the `-noout -text' combination was
7926 inconsistent in `openssl crl' with the friends in `openssl x509|rsa|dsa'.
7927 [Ralf S. Engelschall]
7929 *) Make sure a corresponding plain text error message exists for the
7930 X509_V_ERR_CERT_REVOKED/23 error number which can occur when a
7931 verify callback function determined that a certificate was revoked.
7932 [Ralf S. Engelschall]
7934 *) Bugfix: In test/testenc, don't test "openssl <cipher>" for
7935 ciphers that were excluded, e.g. by -DNO_IDEA. Also, test
7936 all available cipers including rc5, which was forgotten until now.
7937 In order to let the testing shell script know which algorithms
7938 are available, a new (up to now undocumented) command
7939 "openssl list-cipher-commands" is used.
7942 *) Bugfix: s_client occasionally would sleep in select() when
7943 it should have checked SSL_pending() first.
7946 *) New functions DSA_do_sign and DSA_do_verify to provide access to
7947 the raw DSA values prior to ASN.1 encoding.
7950 *) Tweaks to Configure
7951 [Niels Poppe <niels@netbox.org>]
7953 *) Add support for PKCS#5 v2.0 ASN1 PBES2 structures. No other support,
7957 *) New variables $(RANLIB) and $(PERL) in the Makefiles.
7960 *) New config option to avoid instructions that are illegal on the 80386.
7961 The default code is faster, but requires at least a 486.
7964 *) Got rid of old SSL2_CLIENT_VERSION (inconsistently used) and
7965 SSL2_SERVER_VERSION (not used at all) macros, which are now the
7966 same as SSL2_VERSION anyway.
7969 *) New "-showcerts" option for s_client.
7972 *) Still more PKCS#12 integration. Add pkcs12 application to openssl
7973 application. Various cleanups and fixes.
7976 *) More PKCS#12 integration. Add new pkcs12 directory with Makefile.ssl and
7977 modify error routines to work internally. Add error codes and PBE init
7978 to library startup routines.
7981 *) Further PKCS#12 integration. Added password based encryption, PKCS#8 and
7982 packing functions to asn1 and evp. Changed function names and error
7983 codes along the way.
7986 *) PKCS12 integration: and so it begins... First of several patches to
7987 slowly integrate PKCS#12 functionality into OpenSSL. Add PKCS#12
7988 objects to objects.h
7991 *) Add a new 'indent' option to some X509V3 extension code. Initial ASN1
7992 and display support for Thawte strong extranet extension.
7995 *) Add LinuxPPC support.
7996 [Jeff Dubrule <igor@pobox.org>]
7998 *) Get rid of redundant BN file bn_mulw.c, and rename bn_div64 to
7999 bn_div_words in alpha.s.
8000 [Hannes Reinecke <H.Reinecke@hw.ac.uk> and Ben Laurie]
8002 *) Make sure the RSA OAEP test is skipped under -DRSAref because
8003 OAEP isn't supported when OpenSSL is built with RSAref.
8004 [Ulf Moeller <ulf@fitug.de>]
8006 *) Move definitions of IS_SET/IS_SEQUENCE inside crypto/asn1/asn1.h
8007 so they no longer are missing under -DNOPROTO.
8008 [Soren S. Jorvang <soren@t.dk>]
8011 Changes between 0.9.1c and 0.9.2b [22 Mar 1999]
8013 *) Make SSL_get_peer_cert_chain() work in servers. Unfortunately, it still
8014 doesn't work when the session is reused. Coming soon!
8017 *) Fix a security hole, that allows sessions to be reused in the wrong
8018 context thus bypassing client cert protection! All software that uses
8019 client certs and session caches in multiple contexts NEEDS PATCHING to
8020 allow session reuse! A fuller solution is in the works.
8021 [Ben Laurie, problem pointed out by Holger Reif, Bodo Moeller (and ???)]
8023 *) Some more source tree cleanups (removed obsolete files
8024 crypto/bf/asm/bf586.pl, test/test.txt and crypto/sha/asm/f.s; changed
8025 permission on "config" script to be executable) and a fix for the INSTALL
8027 [Ulf Moeller <ulf@fitug.de>]
8029 *) Remove some legacy and erroneous uses of malloc, free instead of
8031 [Lennart Bang <lob@netstream.se>, with minor changes by Steve]
8033 *) Make rsa_oaep_test return non-zero on error.
8034 [Ulf Moeller <ulf@fitug.de>]
8036 *) Add support for native Solaris shared libraries. Configure
8037 solaris-sparc-sc4-pic, make, then run shlib/solaris-sc4.sh. It'd be nice
8038 if someone would make that last step automatic.
8039 [Matthias Loepfe <Matthias.Loepfe@AdNovum.CH>]
8041 *) ctx_size was not built with the right compiler during "make links". Fixed.
8044 *) Change the meaning of 'ALL' in the cipher list. It now means "everything
8045 except NULL ciphers". This means the default cipher list will no longer
8046 enable NULL ciphers. They need to be specifically enabled e.g. with
8047 the string "DEFAULT:eNULL".
8050 *) Fix to RSA private encryption routines: if p < q then it would
8051 occasionally produce an invalid result. This will only happen with
8052 externally generated keys because OpenSSL (and SSLeay) ensure p > q.
8055 *) Be less restrictive and allow also `perl util/perlpath.pl
8056 /path/to/bin/perl' in addition to `perl util/perlpath.pl /path/to/bin',
8057 because this way one can also use an interpreter named `perl5' (which is
8058 usually the name of Perl 5.xxx on platforms where an Perl 4.x is still
8059 installed as `perl').
8060 [Matthias Loepfe <Matthias.Loepfe@adnovum.ch>]
8062 *) Let util/clean-depend.pl work also with older Perl 5.00x versions.
8063 [Matthias Loepfe <Matthias.Loepfe@adnovum.ch>]
8065 *) Fix Makefile.org so CC,CFLAG etc are passed to 'make links' add
8066 advapi32.lib to Win32 build and change the pem test comparision
8067 to fc.exe (thanks to Ulrich Kroener <kroneru@yahoo.com> for the
8068 suggestion). Fix misplaced ASNI prototypes and declarations in evp.h
8069 and crypto/des/ede_cbcm_enc.c.
8072 *) DES quad checksum was broken on big-endian architectures. Fixed.
8075 *) Comment out two functions in bio.h that aren't implemented. Fix up the
8076 Win32 test batch file so it (might) work again. The Win32 test batch file
8077 is horrible: I feel ill....
8080 *) Move various #ifdefs around so NO_SYSLOG, NO_DIRENT etc are now selected
8081 in e_os.h. Audit of header files to check ANSI and non ANSI
8082 sections: 10 functions were absent from non ANSI section and not exported
8083 from Windows DLLs. Fixed up libeay.num for new functions.
8086 *) Make `openssl version' output lines consistent.
8087 [Ralf S. Engelschall]
8089 *) Fix Win32 symbol export lists for BIO functions: Added
8090 BIO_get_ex_new_index, BIO_get_ex_num, BIO_get_ex_data and BIO_set_ex_data
8091 to ms/libeay{16,32}.def.
8092 [Ralf S. Engelschall]
8094 *) Second round of fixing the OpenSSL perl/ stuff. It now at least compiled
8095 fine under Unix and passes some trivial tests I've now added. But the
8096 whole stuff is horribly incomplete, so a README.1ST with a disclaimer was
8097 added to make sure no one expects that this stuff really works in the
8098 OpenSSL 0.9.2 release. Additionally I've started to clean the XS sources
8099 up and fixed a few little bugs and inconsistencies in OpenSSL.{pm,xs} and
8101 [Ralf S. Engelschall]
8103 *) Fix the generation of two part addresses in perl.
8104 [Kenji Miyake <kenji@miyake.org>, integrated by Ben Laurie]
8106 *) Add config entry for Linux on MIPS.
8107 [John Tobey <jtobey@channel1.com>]
8109 *) Make links whenever Configure is run, unless we are on Windoze.
8112 *) Permit extensions to be added to CRLs using crl_section in openssl.cnf.
8113 Currently only issuerAltName and AuthorityKeyIdentifier make any sense
8117 *) Add a useful kludge to allow package maintainers to specify compiler and
8118 other platforms details on the command line without having to patch the
8119 Configure script everytime: One now can use ``perl Configure
8120 <id>:<details>'', i.e. platform ids are allowed to have details appended
8121 to them (seperated by colons). This is treated as there would be a static
8122 pre-configured entry in Configure's %table under key <id> with value
8123 <details> and ``perl Configure <id>'' is called. So, when you want to
8124 perform a quick test-compile under FreeBSD 3.1 with pgcc and without
8125 assembler stuff you can use ``perl Configure "FreeBSD-elf:pgcc:-O6:::"''
8126 now, which overrides the FreeBSD-elf entry on-the-fly.
8127 [Ralf S. Engelschall]
8129 *) Disable new TLS1 ciphersuites by default: they aren't official yet.
8132 *) Allow DSO flags like -fpic, -fPIC, -KPIC etc. to be specified
8133 on the `perl Configure ...' command line. This way one can compile
8134 OpenSSL libraries with Position Independent Code (PIC) which is needed
8135 for linking it into DSOs.
8136 [Ralf S. Engelschall]
8138 *) Remarkably, export ciphers were totally broken and no-one had noticed!
8142 *) Cleaned up the LICENSE document: The official contact for any license
8143 questions now is the OpenSSL core team under openssl-core@openssl.org.
8144 And add a paragraph about the dual-license situation to make sure people
8145 recognize that _BOTH_ the OpenSSL license _AND_ the SSLeay license apply
8146 to the OpenSSL toolkit.
8147 [Ralf S. Engelschall]
8149 *) General source tree makefile cleanups: Made `making xxx in yyy...'
8150 display consistent in the source tree and replaced `/bin/rm' by `rm'.
8151 Additonally cleaned up the `make links' target: Remove unnecessary
8152 semicolons, subsequent redundant removes, inline point.sh into mklink.sh
8153 to speed processing and no longer clutter the display with confusing
8154 stuff. Instead only the actually done links are displayed.
8155 [Ralf S. Engelschall]
8157 *) Permit null encryption ciphersuites, used for authentication only. It used
8158 to be necessary to set the preprocessor define SSL_ALLOW_ENULL to do this.
8159 It is now necessary to set SSL_FORBID_ENULL to prevent the use of null
8163 *) Add a bunch of fixes to the PKCS#7 stuff. It used to sometimes reorder
8164 signed attributes when verifying signatures (this would break them),
8165 the detached data encoding was wrong and public keys obtained using
8166 X509_get_pubkey() weren't freed.
8169 *) Add text documentation for the BUFFER functions. Also added a work around
8170 to a Win95 console bug. This was triggered by the password read stuff: the
8171 last character typed gets carried over to the next fread(). If you were
8172 generating a new cert request using 'req' for example then the last
8173 character of the passphrase would be CR which would then enter the first
8177 *) Added the new `Includes OpenSSL Cryptography Software' button as
8178 doc/openssl_button.{gif,html} which is similar in style to the old SSLeay
8179 button and can be used by applications based on OpenSSL to show the
8180 relationship to the OpenSSL project.
8181 [Ralf S. Engelschall]
8183 *) Remove confusing variables in function signatures in files
8184 ssl/ssl_lib.c and ssl/ssl.h.
8185 [Lennart Bong <lob@kulthea.stacken.kth.se>]
8187 *) Don't install bss_file.c under PREFIX/include/
8188 [Lennart Bong <lob@kulthea.stacken.kth.se>]
8190 *) Get the Win32 compile working again. Modify mkdef.pl so it can handle
8191 functions that return function pointers and has support for NT specific
8192 stuff. Fix mk1mf.pl and VC-32.pl to support NT differences also. Various
8193 #ifdef WIN32 and WINNTs sprinkled about the place and some changes from
8194 unsigned to signed types: this was killing the Win32 compile.
8197 *) Add new certificate file to stack functions,
8198 SSL_add_dir_cert_subjects_to_stack() and
8199 SSL_add_file_cert_subjects_to_stack(). These largely supplant
8200 SSL_load_client_CA_file(), and can be used to add multiple certs easily
8201 to a stack (usually this is then handed to SSL_CTX_set_client_CA_list()).
8202 This means that Apache-SSL and similar packages don't have to mess around
8203 to add as many CAs as they want to the preferred list.
8206 *) Experiment with doxygen documentation. Currently only partially applied to
8208 See http://www.stack.nl/~dimitri/doxygen/index.html, and run doxygen with
8209 openssl.doxy as the configuration file.
8212 *) Get rid of remaining C++-style comments which strict C compilers hate.
8213 [Ralf S. Engelschall, pointed out by Carlos Amengual]
8215 *) Changed BN_RECURSION in bn_mont.c to BN_RECURSION_MONT so it is not
8216 compiled in by default: it has problems with large keys.
8219 *) Add a bunch of SSL_xxx() functions for configuring the temporary RSA and
8220 DH private keys and/or callback functions which directly correspond to
8221 their SSL_CTX_xxx() counterparts but work on a per-connection basis. This
8222 is needed for applications which have to configure certificates on a
8223 per-connection basis (e.g. Apache+mod_ssl) instead of a per-context basis
8225 For the RSA certificate situation is makes no difference, but
8226 for the DSA certificate situation this fixes the "no shared cipher"
8227 problem where the OpenSSL cipher selection procedure failed because the
8228 temporary keys were not overtaken from the context and the API provided
8229 no way to reconfigure them.
8230 The new functions now let applications reconfigure the stuff and they
8231 are in detail: SSL_need_tmp_RSA, SSL_set_tmp_rsa, SSL_set_tmp_dh,
8232 SSL_set_tmp_rsa_callback and SSL_set_tmp_dh_callback. Additionally a new
8233 non-public-API function ssl_cert_instantiate() is used as a helper
8234 function and also to reduce code redundancy inside ssl_rsa.c.
8235 [Ralf S. Engelschall]
8237 *) Move s_server -dcert and -dkey options out of the undocumented feature
8238 area because they are useful for the DSA situation and should be
8239 recognized by the users.
8240 [Ralf S. Engelschall]
8242 *) Fix the cipher decision scheme for export ciphers: the export bits are
8243 *not* within SSL_MKEY_MASK or SSL_AUTH_MASK, they are within
8244 SSL_EXP_MASK. So, the original variable has to be used instead of the
8245 already masked variable.
8246 [Richard Levitte <levitte@stacken.kth.se>]
8248 *) Fix 'port' variable from `int' to `unsigned int' in crypto/bio/b_sock.c
8249 [Richard Levitte <levitte@stacken.kth.se>]
8251 *) Change type of another md_len variable in pk7_doit.c:PKCS7_dataFinal()
8252 from `int' to `unsigned int' because it's a length and initialized by
8253 EVP_DigestFinal() which expects an `unsigned int *'.
8254 [Richard Levitte <levitte@stacken.kth.se>]
8256 *) Don't hard-code path to Perl interpreter on shebang line of Configure
8257 script. Instead use the usual Shell->Perl transition trick.
8258 [Ralf S. Engelschall]
8260 *) Make `openssl x509 -noout -modulus' functional also for DSA certificates
8261 (in addition to RSA certificates) to match the behaviour of `openssl dsa
8262 -noout -modulus' as it's already the case for `openssl rsa -noout
8263 -modulus'. For RSA the -modulus is the real "modulus" while for DSA
8264 currently the public key is printed (a decision which was already done by
8265 `openssl dsa -modulus' in the past) which serves a similar purpose.
8266 Additionally the NO_RSA no longer completely removes the whole -modulus
8267 option; it now only avoids using the RSA stuff. Same applies to NO_DSA
8269 [Ralf S. Engelschall]
8271 *) Add Arne Ansper's reliable BIO - this is an encrypted, block-digested
8272 BIO. See the source (crypto/evp/bio_ok.c) for more info.
8273 [Arne Ansper <arne@ats.cyber.ee>]
8275 *) Dump the old yucky req code that tried (and failed) to allow raw OIDs
8276 to be added. Now both 'req' and 'ca' can use new objects defined in the
8280 *) Add cool BIO that does syslog (or event log on NT).
8281 [Arne Ansper <arne@ats.cyber.ee>, integrated by Ben Laurie]
8283 *) Add support for new TLS ciphersuites, TLS_RSA_EXPORT56_WITH_RC4_56_MD5,
8284 TLS_RSA_EXPORT56_WITH_RC2_CBC_56_MD5 and
8285 TLS_RSA_EXPORT56_WITH_DES_CBC_SHA, as specified in "56-bit Export Cipher
8286 Suites For TLS", draft-ietf-tls-56-bit-ciphersuites-00.txt.
8289 *) Add preliminary config info for new extension code.
8292 *) Make RSA_NO_PADDING really use no padding.
8293 [Ulf Moeller <ulf@fitug.de>]
8295 *) Generate errors when private/public key check is done.
8298 *) Overhaul for 'crl' utility. New function X509_CRL_print. Partial support
8299 for some CRL extensions and new objects added.
8302 *) Really fix the ASN1 IMPLICIT bug this time... Partial support for private
8303 key usage extension and fuller support for authority key id.
8306 *) Add OAEP encryption for the OpenSSL crypto library. OAEP is the improved
8307 padding method for RSA, which is recommended for new applications in PKCS
8308 #1 v2.0 (RFC 2437, October 1998).
8309 OAEP (Optimal Asymmetric Encryption Padding) has better theoretical
8310 foundations than the ad-hoc padding used in PKCS #1 v1.5. It is secure
8311 against Bleichbacher's attack on RSA.
8312 [Ulf Moeller <ulf@fitug.de>, reformatted, corrected and integrated by
8315 *) Updates to the new SSL compression code
8316 [Eric A. Young, (from changes to C2Net SSLeay, integrated by Mark Cox)]
8318 *) Fix so that the version number in the master secret, when passed
8319 via RSA, checks that if TLS was proposed, but we roll back to SSLv3
8320 (because the server will not accept higher), that the version number
8321 is 0x03,0x01, not 0x03,0x00
8322 [Eric A. Young, (from changes to C2Net SSLeay, integrated by Mark Cox)]
8324 *) Run extensive memory leak checks on SSL apps. Fixed *lots* of memory
8325 leaks in ssl/ relating to new X509_get_pubkey() behaviour. Also fixes
8326 in apps/ and an unrelated leak in crypto/dsa/dsa_vrf.c
8329 *) Support for RAW extensions where an arbitrary extension can be
8330 created by including its DER encoding. See apps/openssl.cnf for
8334 *) Make sure latest Perl versions don't interpret some generated C array
8335 code as Perl array code in the crypto/err/err_genc.pl script.
8336 [Lars Weber <3weber@informatik.uni-hamburg.de>]
8338 *) Modify ms/do_ms.bat to not generate assembly language makefiles since
8339 not many people have the assembler. Various Win32 compilation fixes and
8340 update to the INSTALL.W32 file with (hopefully) more accurate Win32
8344 *) Modify configure script 'Configure' to automatically create crypto/date.h
8345 file under Win32 and also build pem.h from pem.org. New script
8346 util/mkfiles.pl to create the MINFO file on environments that can't do a
8347 'make files': perl util/mkfiles.pl >MINFO should work.
8350 *) Major rework of DES function declarations, in the pursuit of correctness
8351 and purity. As a result, many evil casts evaporated, and some weirdness,
8352 too. You may find this causes warnings in your code. Zapping your evil
8353 casts will probably fix them. Mostly.
8356 *) Fix for a typo in asn1.h. Bug fix to object creation script
8357 obj_dat.pl. It considered a zero in an object definition to mean
8358 "end of object": none of the objects in objects.h have any zeros
8359 so it wasn't spotted.
8360 [Steve Henson, reported by Erwann ABALEA <eabalea@certplus.com>]
8362 *) Add support for Triple DES Cipher Block Chaining with Output Feedback
8363 Masking (CBCM). In the absence of test vectors, the best I have been able
8364 to do is check that the decrypt undoes the encrypt, so far. Send me test
8365 vectors if you have them.
8368 *) Correct calculation of key length for export ciphers (too much space was
8369 allocated for null ciphers). This has not been tested!
8372 *) Modifications to the mkdef.pl for Win32 DEF file creation. The usage
8373 message is now correct (it understands "crypto" and "ssl" on its
8374 command line). There is also now an "update" option. This will update
8375 the util/ssleay.num and util/libeay.num files with any new functions.
8377 perl util/mkdef.pl crypto ssl update
8378 it will update them.
8381 *) Overhauled the Perl interface (perl/*):
8382 - ported BN stuff to OpenSSL's different BN library
8383 - made the perl/ source tree CVS-aware
8384 - renamed the package from SSLeay to OpenSSL (the files still contain
8385 their history because I've copied them in the repository)
8386 - removed obsolete files (the test scripts will be replaced
8387 by better Test::Harness variants in the future)
8388 [Ralf S. Engelschall]
8390 *) First cut for a very conservative source tree cleanup:
8391 1. merge various obsolete readme texts into doc/ssleay.txt
8392 where we collect the old documents and readme texts.
8393 2. remove the first part of files where I'm already sure that we no
8394 longer need them because of three reasons: either they are just temporary
8395 files which were left by Eric or they are preserved original files where
8396 I've verified that the diff is also available in the CVS via "cvs diff
8397 -rSSLeay_0_8_1b" or they were renamed (as it was definitely the case for
8398 the crypto/md/ stuff).
8399 [Ralf S. Engelschall]
8401 *) More extension code. Incomplete support for subject and issuer alt
8402 name, issuer and authority key id. Change the i2v function parameters
8403 and add an extra 'crl' parameter in the X509V3_CTX structure: guess
8404 what that's for :-) Fix to ASN1 macro which messed up
8405 IMPLICIT tag and add f_enum.c which adds a2i, i2a for ENUMERATED.
8408 *) Preliminary support for ENUMERATED type. This is largely copied from the
8412 *) Add new function, EVP_MD_CTX_copy() to replace frequent use of memcpy.
8413 [Eric A. Young, (from changes to C2Net SSLeay, integrated by Mark Cox)]
8415 *) Make sure `make rehash' target really finds the `openssl' program.
8416 [Ralf S. Engelschall, Matthias Loepfe <Matthias.Loepfe@adnovum.ch>]
8418 *) Squeeze another 7% of speed out of MD5 assembler, at least on a P2. I'd
8419 like to hear about it if this slows down other processors.
8422 *) Add CygWin32 platform information to Configure script.
8423 [Alan Batie <batie@aahz.jf.intel.com>]
8425 *) Fixed ms/32all.bat script: `no_asm' -> `no-asm'
8426 [Rainer W. Gerling <gerling@mpg-gv.mpg.de>]
8428 *) New program nseq to manipulate netscape certificate sequences
8431 *) Modify crl2pkcs7 so it supports multiple -certfile arguments. Fix a
8435 *) Fixes to BN code. Previously the default was to define BN_RECURSION
8436 but the BN code had some problems that would cause failures when
8437 doing certificate verification and some other functions.
8438 [Eric A. Young, (from changes to C2Net SSLeay, integrated by Mark Cox)]
8440 *) Add ASN1 and PEM code to support netscape certificate sequences.
8443 *) Add ASN1 and PEM code to support netscape certificate sequences.
8446 *) Add several PKIX and private extended key usage OIDs.
8449 *) Modify the 'ca' program to handle the new extension code. Modify
8450 openssl.cnf for new extension format, add comments.
8453 *) More X509 V3 changes. Fix typo in v3_bitstr.c. Add support to 'req'
8454 and add a sample to openssl.cnf so req -x509 now adds appropriate
8458 *) Continued X509 V3 changes. Add to other makefiles, integrate with the
8459 error code, add initial support to X509_print() and x509 application.
8462 *) Takes a deep breath and start addding X509 V3 extension support code. Add
8463 files in crypto/x509v3. Move original stuff to crypto/x509v3/old. All this
8464 stuff is currently isolated and isn't even compiled yet.
8467 *) Continuing patches for GeneralizedTime. Fix up certificate and CRL
8468 ASN1 to use ASN1_TIME and modify print routines to use ASN1_TIME_print.
8469 Removed the versions check from X509 routines when loading extensions:
8470 this allows certain broken certificates that don't set the version
8471 properly to be processed.
8474 *) Deal with irritating shit to do with dependencies, in YAAHW (Yet Another
8475 Ad Hoc Way) - Makefile.ssls now all contain local dependencies, which
8476 can still be regenerated with "make depend".
8479 *) Spelling mistake in C version of CAST-128.
8480 [Ben Laurie, reported by Jeremy Hylton <jeremy@cnri.reston.va.us>]
8482 *) Changes to the error generation code. The perl script err-code.pl
8483 now reads in the old error codes and retains the old numbers, only
8484 adding new ones if necessary. It also only changes the .err files if new
8485 codes are added. The makefiles have been modified to only insert errors
8486 when needed (to avoid needlessly modifying header files). This is done
8487 by only inserting errors if the .err file is newer than the auto generated
8488 C file. To rebuild all the error codes from scratch (the old behaviour)
8489 either modify crypto/Makefile.ssl to pass the -regen flag to err_code.pl
8490 or delete all the .err files.
8493 *) CAST-128 was incorrectly implemented for short keys. The C version has
8494 been fixed, but is untested. The assembler versions are also fixed, but
8495 new assembler HAS NOT BEEN GENERATED FOR WIN32 - the Makefile needs fixing
8496 to regenerate it if needed.
8497 [Ben Laurie, reported (with fix for C version) by Jun-ichiro itojun
8498 Hagino <itojun@kame.net>]
8500 *) File was opened incorrectly in randfile.c.
8501 [Ulf Möller <ulf@fitug.de>]
8503 *) Beginning of support for GeneralizedTime. d2i, i2d, check and print
8504 functions. Also ASN1_TIME suite which is a CHOICE of UTCTime or
8505 GeneralizedTime. ASN1_TIME is the proper type used in certificates et
8506 al: it's just almost always a UTCTime. Note this patch adds new error
8507 codes so do a "make errors" if there are problems.
8510 *) Correct Linux 1 recognition in config.
8511 [Ulf Möller <ulf@fitug.de>]
8513 *) Remove pointless MD5 hash when using DSA keys in ca.
8514 [Anonymous <nobody@replay.com>]
8516 *) Generate an error if given an empty string as a cert directory. Also
8517 generate an error if handed NULL (previously returned 0 to indicate an
8518 error, but didn't set one).
8519 [Ben Laurie, reported by Anonymous <nobody@replay.com>]
8521 *) Add prototypes to SSL methods. Make SSL_write's buffer const, at last.
8524 *) Fix the dummy function BN_ref_mod_exp() in rsaref.c to have the correct
8525 parameters. This was causing a warning which killed off the Win32 compile.
8528 *) Remove C++ style comments from crypto/bn/bn_local.h.
8529 [Neil Costigan <neil.costigan@celocom.com>]
8531 *) The function OBJ_txt2nid was broken. It was supposed to return a nid
8532 based on a text string, looking up short and long names and finally
8533 "dot" format. The "dot" format stuff didn't work. Added new function
8534 OBJ_txt2obj to do the same but return an ASN1_OBJECT and rewrote
8535 OBJ_txt2nid to use it. OBJ_txt2obj can also return objects even if the
8536 OID is not part of the table.
8539 *) Add prototypes to X509 lookup/verify methods, fixing a bug in
8540 X509_LOOKUP_by_alias().
8543 *) Sort openssl functions by name.
8546 *) Get the gendsa program working (hopefully) and add it to app list. Remove
8547 encryption from sample DSA keys (in case anyone is interested the password
8551 *) Make _all_ *_free functions accept a NULL pointer.
8552 [Frans Heymans <fheymans@isaserver.be>]
8554 *) If a DH key is generated in s3_srvr.c, don't blow it by trying to use
8556 [Anonymous <nobody@replay.com>]
8558 *) s_server should send the CAfile as acceptable CAs, not its own cert.
8559 [Bodo Moeller <3moeller@informatik.uni-hamburg.de>]
8561 *) Don't blow it for numeric -newkey arguments to apps/req.
8562 [Bodo Moeller <3moeller@informatik.uni-hamburg.de>]
8564 *) Temp key "for export" tests were wrong in s3_srvr.c.
8565 [Anonymous <nobody@replay.com>]
8567 *) Add prototype for temp key callback functions
8568 SSL_CTX_set_tmp_{rsa,dh}_callback().
8571 *) Make DH_free() tolerate being passed a NULL pointer (like RSA_free() and
8572 DSA_free()). Make X509_PUBKEY_set() check for errors in d2i_PublicKey().
8575 *) X509_name_add_entry() freed the wrong thing after an error.
8576 [Arne Ansper <arne@ats.cyber.ee>]
8578 *) rsa_eay.c would attempt to free a NULL context.
8579 [Arne Ansper <arne@ats.cyber.ee>]
8581 *) BIO_s_socket() had a broken should_retry() on Windoze.
8582 [Arne Ansper <arne@ats.cyber.ee>]
8584 *) BIO_f_buffer() didn't pass on BIO_CTRL_FLUSH.
8585 [Arne Ansper <arne@ats.cyber.ee>]
8587 *) Make sure the already existing X509_STORE->depth variable is initialized
8588 in X509_STORE_new(), but document the fact that this variable is still
8589 unused in the certificate verification process.
8590 [Ralf S. Engelschall]
8592 *) Fix the various library and apps files to free up pkeys obtained from
8593 X509_PUBKEY_get() et al. Also allow x509.c to handle netscape extensions.
8596 *) Fix reference counting in X509_PUBKEY_get(). This makes
8597 demos/maurice/example2.c work, amongst others, probably.
8598 [Steve Henson and Ben Laurie]
8600 *) First cut of a cleanup for apps/. First the `ssleay' program is now named
8601 `openssl' and second, the shortcut symlinks for the `openssl <command>'
8602 are no longer created. This way we have a single and consistent command
8603 line interface `openssl <command>', similar to `cvs <command>'.
8604 [Ralf S. Engelschall, Paul Sutton and Ben Laurie]
8606 *) ca.c: move test for DSA keys inside #ifndef NO_DSA. Make pubkey
8607 BIT STRING wrapper always have zero unused bits.
8610 *) Add CA.pl, perl version of CA.sh, add extended key usage OID.
8613 *) Make the top-level INSTALL documentation easier to understand.
8616 *) Makefiles updated to exit if an error occurs in a sub-directory
8617 make (including if user presses ^C) [Paul Sutton]
8619 *) Make Montgomery context stuff explicit in RSA data structure.
8622 *) Fix build order of pem and err to allow for generated pem.h.
8625 *) Fix renumbering bug in X509_NAME_delete_entry().
8628 *) Enhanced the err-ins.pl script so it makes the error library number
8629 global and can add a library name. This is needed for external ASN1 and
8630 other error libraries.
8633 *) Fixed sk_insert which never worked properly.
8636 *) Fix ASN1 macros so they can handle indefinite length construted
8637 EXPLICIT tags. Some non standard certificates use these: they can now
8641 *) Merged the various old/obsolete SSLeay documentation files (doc/xxx.doc)
8642 into a single doc/ssleay.txt bundle. This way the information is still
8643 preserved but no longer messes up this directory. Now it's new room for
8644 the new set of documenation files.
8645 [Ralf S. Engelschall]
8647 *) SETs were incorrectly DER encoded. This was a major pain, because they
8648 shared code with SEQUENCEs, which aren't coded the same. This means that
8649 almost everything to do with SETs or SEQUENCEs has either changed name or
8650 number of arguments.
8651 [Ben Laurie, based on a partial fix by GP Jayan <gp@nsj.co.jp>]
8653 *) Fix test data to work with the above.
8656 *) Fix the RSA header declarations that hid a bug I fixed in 0.9.0b but
8657 was already fixed by Eric for 0.9.1 it seems.
8658 [Ben Laurie - pointed out by Ulf Möller <ulf@fitug.de>]
8660 *) Autodetect FreeBSD3.
8663 *) Fix various bugs in Configure. This affects the following platforms:
8667 unixware-2.0-pentium
8671 *) Eliminate generated files from CVS. Reorder tests to regenerate files
8672 before they are needed.
8675 *) Generate Makefile.ssl from Makefile.org (to keep CVS happy).
8679 Changes between 0.9.1b and 0.9.1c [23-Dec-1998]
8681 *) Added OPENSSL_VERSION_NUMBER to crypto/crypto.h and
8682 changed SSLeay to OpenSSL in version strings.
8683 [Ralf S. Engelschall]
8685 *) Some fixups to the top-level documents.
8688 *) Fixed the nasty bug where rsaref.h was not found under compile-time
8689 because the symlink to include/ was missing.
8690 [Ralf S. Engelschall]
8692 *) Incorporated the popular no-RSA/DSA-only patches
8693 which allow to compile a RSA-free SSLeay.
8694 [Andrew Cooke / Interrader Ldt., Ralf S. Engelschall]
8696 *) Fixed nasty rehash problem under `make -f Makefile.ssl links'
8697 when "ssleay" is still not found.
8698 [Ralf S. Engelschall]
8700 *) Added more platforms to Configure: Cray T3E, HPUX 11,
8701 [Ralf S. Engelschall, Beckmann <beckman@acl.lanl.gov>]
8703 *) Updated the README file.
8704 [Ralf S. Engelschall]
8706 *) Added various .cvsignore files in the CVS repository subdirs
8707 to make a "cvs update" really silent.
8708 [Ralf S. Engelschall]
8710 *) Recompiled the error-definition header files and added
8711 missing symbols to the Win32 linker tables.
8712 [Ralf S. Engelschall]
8714 *) Cleaned up the top-level documents;
8715 o new files: CHANGES and LICENSE
8716 o merged VERSION, HISTORY* and README* files a CHANGES.SSLeay
8717 o merged COPYRIGHT into LICENSE
8718 o removed obsolete TODO file
8719 o renamed MICROSOFT to INSTALL.W32
8720 [Ralf S. Engelschall]
8722 *) Removed dummy files from the 0.9.1b source tree:
8723 crypto/asn1/x crypto/bio/cd crypto/bio/fg crypto/bio/grep crypto/bio/vi
8724 crypto/bn/asm/......add.c crypto/bn/asm/a.out crypto/dsa/f crypto/md5/f
8725 crypto/pem/gmon.out crypto/perlasm/f crypto/pkcs7/build crypto/rsa/f
8726 crypto/sha/asm/f crypto/threads/f ms/zzz ssl/f ssl/f.mak test/f
8727 util/f.mak util/pl/f util/pl/f.mak crypto/bf/bf_locl.old apps/f
8728 [Ralf S. Engelschall]
8730 *) Added various platform portability fixes.
8733 *) The Genesis of the OpenSSL rpject:
8734 We start with the latest (unreleased) SSLeay version 0.9.1b which Eric A.
8735 Young and Tim J. Hudson created while they were working for C2Net until
8737 [The OpenSSL Project]
8740 Changes between 0.9.0b and 0.9.1b [not released]
8742 *) Updated a few CA certificates under certs/
8745 *) Changed some BIGNUM api stuff.
8748 *) Various platform ports: OpenBSD, Ultrix, IRIX 64bit, NetBSD,
8749 DGUX x86, Linux Alpha, etc.
8752 *) New COMP library [crypto/comp/] for SSL Record Layer Compression:
8753 RLE (dummy implemented) and ZLIB (really implemented when ZLIB is
8757 *) Add -strparse option to asn1pars program which parses nested
8759 [Dr Stephen Henson <shenson@bigfoot.com>]
8761 *) Added "oid_file" to ssleay.cnf for "ca" and "req" programs.
8764 *) DSA fix for "ca" program.
8767 *) Added "-genkey" option to "dsaparam" program.
8770 *) Added RIPE MD160 (rmd160) message digest.
8773 *) Added -a (all) option to "ssleay version" command.
8776 *) Added PLATFORM define which is the id given to Configure.
8779 *) Added MemCheck_XXXX functions to crypto/mem.c for memory checking.
8782 *) Extended the ASN.1 parser routines.
8785 *) Extended BIO routines to support REUSEADDR, seek, tell, etc.
8788 *) Added a BN_CTX to the BN library.
8791 *) Fixed the weak key values in DES library
8794 *) Changed API in EVP library for cipher aliases.
8797 *) Added support for RC2/64bit cipher.
8800 *) Converted the lhash library to the crypto/mem.c functions.
8803 *) Added more recognized ASN.1 object ids.
8806 *) Added more RSA padding checks for SSL/TLS.
8809 *) Added BIO proxy/filter functionality.
8812 *) Added extra_certs to SSL_CTX which can be used
8813 send extra CA certificates to the client in the CA cert chain sending
8814 process. It can be configured with SSL_CTX_add_extra_chain_cert().
8817 *) Now Fortezza is denied in the authentication phase because
8818 this is key exchange mechanism is not supported by SSLeay at all.
8821 *) Additional PKCS1 checks.
8824 *) Support the string "TLSv1" for all TLS v1 ciphers.
8827 *) Added function SSL_get_ex_data_X509_STORE_CTX_idx() which gives the
8828 ex_data index of the SSL context in the X509_STORE_CTX ex_data.
8831 *) Fixed a few memory leaks.
8834 *) Fixed various code and comment typos.
8837 *) A minor bug in ssl/s3_clnt.c where there would always be 4 0
8838 bytes sent in the client random.
8839 [Edward Bishop <ebishop@spyglass.com>]