5 Changes between 0.9.8j and 0.9.9 [xx XXX xxxx]
7 *) Type-checked OBJ_bsearch. Also some constification necessitated
8 by type-checking. Still to come: TXT_DB, bsearch(?),
9 OBJ_bsearch_ex, qsort, CRYPTO_EX_DATA, ASN1_VALUE, ASN1_STRING,
10 CONF_VALUE. [Ben Laurie]
12 *) New function OPENSSL_gmtime_adj() to add a specific number of days and
13 seconds to a tm structure directly, instead of going through OS
14 specific date routines. This avoids any issues with OS routines such
15 as the year 2038 bug. New *_adj() functions for ASN1 time structures
16 and X509_time_adj_ex() to cover the extended range. The existing
17 X509_time_adj() is still usable and will no longer have any date issues.
20 *) Delta CRL support. New use deltas option which will attempt to locate
21 and search any appropriate delta CRLs available.
23 This work was sponsored by Google.
26 *) Support for CRLs partitioned by reason code. Reorganise CRL processing
27 code and add additional score elements. Validate alternate CRL paths
28 as part of the CRL checking and indicate a new error "CRL path validation
29 error" in this case. Applications wanting additional details can use
30 the verify callback and check the new "parent" field. If this is not
31 NULL CRL path validation is taking place. Existing applications wont
32 see this because it requires extended CRL support which is off by
35 This work was sponsored by Google.
38 *) Support for freshest CRL extension.
40 This work was sponsored by Google.
43 *) Initial indirect CRL support. Currently only supported in the CRLs
44 passed directly and not via lookup. Process certificate issuer
45 CRL entry extension and lookup CRL entries by bother issuer name
46 and serial number. Check and process CRL issuer entry in IDP extension.
48 This work was sponsored by Google.
51 *) Add support for distinct certificate and CRL paths. The CRL issuer
52 certificate is validated separately in this case. Only enabled if
53 an extended CRL support flag is set: this flag will enable additional
54 CRL functionality in future.
56 This work was sponsored by Google.
59 *) Add support for policy mappings extension.
61 This work was sponsored by Google.
64 *) Fixes to pathlength constraint, self issued certificate handling,
65 policy processing to align with RFC3280 and PKITS tests.
67 This work was sponsored by Google.
70 *) Support for name constraints certificate extension. DN, email, DNS
71 and URI types are currently supported.
73 This work was sponsored by Google.
76 *) To cater for systems that provide a pointer-based thread ID rather
77 than numeric, deprecate the current numeric thread ID mechanism and
78 replace it with a structure and associated callback type. This
79 mechanism allows a numeric "hash" to be extracted from a thread ID in
80 either case, and on platforms where pointers are larger than 'long',
81 mixing is done to help ensure the numeric 'hash' is usable even if it
82 can't be guaranteed unique. The default mechanism is to use "&errno"
83 as a pointer-based thread ID to distinguish between threads.
85 Applications that want to provide their own thread IDs should now use
86 CRYPTO_THREADID_set_callback() to register a callback that will call
87 either CRYPTO_THREADID_set_numeric() or CRYPTO_THREADID_set_pointer().
89 Note that ERR_remove_state() is now deprecated, because it is tied
90 to the assumption that thread IDs are numeric. ERR_remove_state(0)
91 to free the current thread's error state should be replaced by
92 ERR_remove_thread_state(NULL).
94 (This new approach replaces the functions CRYPTO_set_idptr_callback(),
95 CRYPTO_get_idptr_callback(), and CRYPTO_thread_idptr() that existed in
96 OpenSSL 0.9.9-dev between June 2006 and August 2008. Also, if an
97 application was previously providing a numeric thread callback that
98 was inappropriate for distinguishing threads, then uniqueness might
99 have been obtained with &errno that happened immediately in the
100 intermediate development versions of OpenSSL; this is no longer the
101 case, the numeric thread callback will now override the automatic use
103 [Geoff Thorpe, with help from Bodo Moeller]
105 *) Initial support for different CRL issuing certificates. This covers a
106 simple case where the self issued certificates in the chain exist and
107 the real CRL issuer is higher in the existing chain.
109 This work was sponsored by Google.
112 *) Removed effectively defunct crypto/store from the build.
115 *) Revamp of STACK to provide stronger type-checking. Still to come:
116 TXT_DB, bsearch(?), OBJ_bsearch, qsort, CRYPTO_EX_DATA, ASN1_VALUE,
117 ASN1_STRING, CONF_VALUE.
120 *) Add a new SSL_MODE_RELEASE_BUFFERS mode flag to release unused buffer
121 RAM on SSL connections. This option can save about 34k per idle SSL.
124 *) Revamp of LHASH to provide stronger type-checking. Still to come:
125 STACK, TXT_DB, bsearch, qsort.
128 *) Initial support for Cryptographic Message Syntax (aka CMS) based
129 on RFC3850, RFC3851 and RFC3852. New cms directory and cms utility,
130 support for data, signedData, compressedData, digestedData and
131 encryptedData, envelopedData types included. Scripts to check against
132 RFC4134 examples draft and interop and consistency checks of many
133 content types and variants.
136 *) Add options to enc utility to support use of zlib compression BIO.
139 *) Extend mk1mf to support importing of options and assembly language
140 files from Configure script, currently only included in VC-WIN32.
141 The assembly language rules can now optionally generate the source
142 files from the associated perl scripts.
145 *) Implement remaining functionality needed to support GOST ciphersuites.
146 Interop testing has been performed using CryptoPro implementations.
147 [Victor B. Wagner <vitus@cryptocom.ru>]
149 *) s390x assembler pack.
152 *) ARMv4 assembler pack. ARMv4 refers to v4 and later ISA, not CPU
156 *) Implement Opaque PRF Input TLS extension as specified in
157 draft-rescorla-tls-opaque-prf-input-00.txt. Since this is not an
158 official specification yet and no extension type assignment by
159 IANA exists, this extension (for now) will have to be explicitly
160 enabled when building OpenSSL by providing the extension number
161 to use. For example, specify an option
163 -DTLSEXT_TYPE_opaque_prf_input=0x9527
165 to the "config" or "Configure" script to enable the extension,
166 assuming extension number 0x9527 (which is a completely arbitrary
167 and unofficial assignment based on the MD5 hash of the Internet
168 Draft). Note that by doing so, you potentially lose
169 interoperability with other TLS implementations since these might
170 be using the same extension number for other purposes.
172 SSL_set_tlsext_opaque_prf_input(ssl, src, len) is used to set the
173 opaque PRF input value to use in the handshake. This will create
174 an interal copy of the length-'len' string at 'src', and will
175 return non-zero for success.
177 To get more control and flexibility, provide a callback function
180 SSL_CTX_set_tlsext_opaque_prf_input_callback(ctx, cb)
181 SSL_CTX_set_tlsext_opaque_prf_input_callback_arg(ctx, arg)
185 int (*cb)(SSL *, void *peerinput, size_t len, void *arg);
188 Callback function 'cb' will be called in handshakes, and is
189 expected to use SSL_set_tlsext_opaque_prf_input() as appropriate.
190 Argument 'arg' is for application purposes (the value as given to
191 SSL_CTX_set_tlsext_opaque_prf_input_callback_arg() will directly
192 be provided to the callback function). The callback function
193 has to return non-zero to report success: usually 1 to use opaque
194 PRF input just if possible, or 2 to enforce use of the opaque PRF
195 input. In the latter case, the library will abort the handshake
196 if opaque PRF input is not successfully negotiated.
198 Arguments 'peerinput' and 'len' given to the callback function
199 will always be NULL and 0 in the case of a client. A server will
200 see the client's opaque PRF input through these variables if
201 available (NULL and 0 otherwise). Note that if the server
202 provides an opaque PRF input, the length must be the same as the
203 length of the client's opaque PRF input.
205 Note that the callback function will only be called when creating
206 a new session (session resumption can resume whatever was
207 previously negotiated), and will not be called in SSL 2.0
208 handshakes; thus, SSL_CTX_set_options(ctx, SSL_OP_NO_SSLv2) or
209 SSL_set_options(ssl, SSL_OP_NO_SSLv2) is especially recommended
210 for applications that need to enforce opaque PRF input.
214 *) Update ssl code to support digests other than SHA1+MD5 for handshake
217 [Victor B. Wagner <vitus@cryptocom.ru>]
219 *) Add RFC4507 support to OpenSSL. This includes the corrections in
220 RFC4507bis. The encrypted ticket format is an encrypted encoded
221 SSL_SESSION structure, that way new session features are automatically
224 If a client application caches session in an SSL_SESSION structure
225 support is transparent because tickets are now stored in the encoded
228 The SSL_CTX structure automatically generates keys for ticket
229 protection in servers so again support should be possible
230 with no application modification.
232 If a client or server wishes to disable RFC4507 support then the option
233 SSL_OP_NO_TICKET can be set.
235 Add a TLS extension debugging callback to allow the contents of any client
236 or server extensions to be examined.
238 This work was sponsored by Google.
241 *) Final changes to avoid use of pointer pointer casts in OpenSSL.
242 OpenSSL should now compile cleanly on gcc 4.2
243 [Peter Hartley <pdh@utter.chaos.org.uk>, Steve Henson]
245 *) Update SSL library to use new EVP_PKEY MAC API. Include generic MAC
246 support including streaming MAC support: this is required for GOST
248 [Victor B. Wagner <vitus@cryptocom.ru>, Steve Henson]
250 *) Add option -stream to use PKCS#7 streaming in smime utility. New
251 function i2d_PKCS7_bio_stream() and PEM_write_PKCS7_bio_stream()
252 to output in BER and PEM format.
255 *) Experimental support for use of HMAC via EVP_PKEY interface. This
256 allows HMAC to be handled via the EVP_DigestSign*() interface. The
257 EVP_PKEY "key" in this case is the HMAC key, potentially allowing
258 ENGINE support for HMAC keys which are unextractable. New -mac and
259 -macopt options to dgst utility.
262 *) New option -sigopt to dgst utility. Update dgst to use
263 EVP_Digest{Sign,Verify}*. These two changes make it possible to use
264 alternative signing paramaters such as X9.31 or PSS in the dgst
268 *) Change ssl_cipher_apply_rule(), the internal function that does
269 the work each time a ciphersuite string requests enabling
270 ("foo+bar"), moving ("+foo+bar"), disabling ("-foo+bar", or
271 removing ("!foo+bar") a class of ciphersuites: Now it maintains
272 the order of disabled ciphersuites such that those ciphersuites
273 that most recently went from enabled to disabled not only stay
274 in order with respect to each other, but also have higher priority
275 than other disabled ciphersuites the next time ciphersuites are
278 This means that you can now say, e.g., "PSK:-PSK:HIGH" to enable
279 the same ciphersuites as with "HIGH" alone, but in a specific
280 order where the PSK ciphersuites come first (since they are the
281 most recently disabled ciphersuites when "HIGH" is parsed).
283 Also, change ssl_create_cipher_list() (using this new
284 funcionality) such that between otherwise identical
285 cihpersuites, ephemeral ECDH is preferred over ephemeral DH in
289 *) Change ssl_create_cipher_list() so that it automatically
290 arranges the ciphersuites in reasonable order before starting
291 to process the rule string. Thus, the definition for "DEFAULT"
292 (SSL_DEFAULT_CIPHER_LIST) now is just "ALL:!aNULL:!eNULL", but
293 remains equivalent to "AES:ALL:!aNULL:!eNULL:+aECDH:+kRSA:+RC4:@STRENGTH".
294 This makes it much easier to arrive at a reasonable default order
295 in applications for which anonymous ciphers are OK (meaning
296 that you can't actually use DEFAULT).
297 [Bodo Moeller; suggested by Victor Duchovni]
299 *) Split the SSL/TLS algorithm mask (as used for ciphersuite string
300 processing) into multiple integers instead of setting
301 "SSL_MKEY_MASK" bits, "SSL_AUTH_MASK" bits, "SSL_ENC_MASK",
302 "SSL_MAC_MASK", and "SSL_SSL_MASK" bits all in a single integer.
303 (These masks as well as the individual bit definitions are hidden
304 away into the non-exported interface ssl/ssl_locl.h, so this
305 change to the definition of the SSL_CIPHER structure shouldn't
306 affect applications.) This give us more bits for each of these
307 categories, so there is no longer a need to coagulate AES128 and
308 AES256 into a single algorithm bit, and to coagulate Camellia128
309 and Camellia256 into a single algorithm bit, which has led to all
312 Thus, among other things, the kludge introduced in 0.9.7m and
313 0.9.8e for masking out AES256 independently of AES128 or masking
314 out Camellia256 independently of AES256 is not needed here in 0.9.9.
316 With the change, we also introduce new ciphersuite aliases that
317 so far were missing: "AES128", "AES256", "CAMELLIA128", and
321 *) Add support for dsa-with-SHA224 and dsa-with-SHA256.
322 Use the leftmost N bytes of the signature input if the input is
323 larger than the prime q (with N being the size in bytes of q).
326 *) Very *very* experimental PKCS#7 streaming encoder support. Nothing uses
327 it yet and it is largely untested.
330 *) Add support for the ecdsa-with-SHA224/256/384/512 signature types.
333 *) Initial incomplete changes to avoid need for function casts in OpenSSL
334 some compilers (gcc 4.2 and later) reject their use. Safestack is
335 reimplemented. Update ASN1 to avoid use of legacy functions.
338 *) Win32/64 targets are linked with Winsock2.
341 *) Add an X509_CRL_METHOD structure to allow CRL processing to be redirected
342 to external functions. This can be used to increase CRL handling
343 efficiency especially when CRLs are very large by (for example) storing
344 the CRL revoked certificates in a database.
347 *) Overhaul of by_dir code. Add support for dynamic loading of CRLs so
348 new CRLs added to a directory can be used. New command line option
349 -verify_return_error to s_client and s_server. This causes real errors
350 to be returned by the verify callback instead of carrying on no matter
351 what. This reflects the way a "real world" verify callback would behave.
354 *) GOST engine, supporting several GOST algorithms and public key formats.
355 Kindly donated by Cryptocom.
358 *) Partial support for Issuing Distribution Point CRL extension. CRLs
359 partitioned by DP are handled but no indirect CRL or reason partitioning
360 (yet). Complete overhaul of CRL handling: now the most suitable CRL is
361 selected via a scoring technique which handles IDP and AKID in CRLs.
364 *) New X509_STORE_CTX callbacks lookup_crls() and lookup_certs() which
365 will ultimately be used for all verify operations: this will remove the
366 X509_STORE dependency on certificate verification and allow alternative
367 lookup methods. X509_STORE based implementations of these two callbacks.
370 *) Allow multiple CRLs to exist in an X509_STORE with matching issuer names.
371 Modify get_crl() to find a valid (unexpired) CRL if possible.
374 *) New function X509_CRL_match() to check if two CRLs are identical. Normally
375 this would be called X509_CRL_cmp() but that name is already used by
376 a function that just compares CRL issuer names. Cache several CRL
377 extensions in X509_CRL structure and cache CRLDP in X509.
380 *) Store a "canonical" representation of X509_NAME structure (ASN1 Name)
381 this maps equivalent X509_NAME structures into a consistent structure.
382 Name comparison can then be performed rapidly using memcmp().
385 *) Non-blocking OCSP request processing. Add -timeout option to ocsp
389 *) Allow digests to supply their own micalg string for S/MIME type using
390 the ctrl EVP_MD_CTRL_MICALG.
393 *) During PKCS7 signing pass the PKCS7 SignerInfo structure to the
394 EVP_PKEY_METHOD before and after signing via the EVP_PKEY_CTRL_PKCS7_SIGN
395 ctrl. It can then customise the structure before and/or after signing
399 *) New function OBJ_add_sigid() to allow application defined signature OIDs
400 to be added to OpenSSLs internal tables. New function OBJ_sigid_free()
401 to free up any added signature OIDs.
404 *) New functions EVP_CIPHER_do_all(), EVP_CIPHER_do_all_sorted(),
405 EVP_MD_do_all() and EVP_MD_do_all_sorted() to enumerate internal
406 digest and cipher tables. New options added to openssl utility:
407 list-message-digest-algorithms and list-cipher-algorithms.
410 *) Change the array representation of binary polynomials: the list
411 of degrees of non-zero coefficients is now terminated with -1.
412 Previously it was terminated with 0, which was also part of the
413 value; thus, the array representation was not applicable to
414 polynomials where t^0 has coefficient zero. This change makes
415 the array representation useful in a more general context.
418 *) Various modifications and fixes to SSL/TLS cipher string
419 handling. For ECC, the code now distinguishes between fixed ECDH
420 with RSA certificates on the one hand and with ECDSA certificates
421 on the other hand, since these are separate ciphersuites. The
422 unused code for Fortezza ciphersuites has been removed.
424 For consistency with EDH, ephemeral ECDH is now called "EECDH"
425 (not "ECDHE"). For consistency with the code for DH
426 certificates, use of ECDH certificates is now considered ECDH
427 authentication, not RSA or ECDSA authentication (the latter is
428 merely the CA's signing algorithm and not actively used in the
431 The temporary ciphersuite alias "ECCdraft" is no longer
432 available, and ECC ciphersuites are no longer excluded from "ALL"
433 and "DEFAULT". The following aliases now exist for RFC 4492
434 ciphersuites, most of these by analogy with the DH case:
436 kECDHr - ECDH cert, signed with RSA
437 kECDHe - ECDH cert, signed with ECDSA
438 kECDH - ECDH cert (signed with either RSA or ECDSA)
439 kEECDH - ephemeral ECDH
440 ECDH - ECDH cert or ephemeral ECDH
446 AECDH - anonymous ECDH
447 EECDH - non-anonymous ephemeral ECDH (equivalent to "kEECDH:-AECDH")
451 *) Add additional S/MIME capabilities for AES and GOST ciphers if supported.
452 Use correct micalg parameters depending on digest(s) in signed message.
455 *) Add engine support for EVP_PKEY_ASN1_METHOD. Add functions to process
456 an ENGINE asn1 method. Support ENGINE lookups in the ASN1 code.
459 *) Initial engine support for EVP_PKEY_METHOD. New functions to permit
460 an engine to register a method. Add ENGINE lookups for methods and
461 functional reference processing.
464 *) New functions EVP_Digest{Sign,Verify)*. These are enchance versions of
465 EVP_{Sign,Verify}* which allow an application to customise the signature
469 *) New -resign option to smime utility. This adds one or more signers
470 to an existing PKCS#7 signedData structure. Also -md option to use an
471 alternative message digest algorithm for signing.
474 *) Tidy up PKCS#7 routines and add new functions to make it easier to
475 create PKCS7 structures containing multiple signers. Update smime
476 application to support multiple signers.
479 *) New -macalg option to pkcs12 utility to allow setting of an alternative
483 *) Initial support for PKCS#5 v2.0 PRFs other than default SHA1 HMAC.
484 Reorganize PBE internals to lookup from a static table using NIDs,
485 add support for HMAC PBE OID translation. Add a EVP_CIPHER ctrl:
486 EVP_CTRL_PBE_PRF_NID this allows a cipher to specify an alternative
487 PRF which will be automatically used with PBES2.
490 *) Replace the algorithm specific calls to generate keys in "req" with the
494 *) Update PKCS#7 enveloped data routines to use new API. This is now
495 supported by any public key method supporting the encrypt operation. A
496 ctrl is added to allow the public key algorithm to examine or modify
497 the PKCS#7 RecipientInfo structure if it needs to: for RSA this is
501 *) Add a ctrl to asn1 method to allow a public key algorithm to express
502 a default digest type to use. In most cases this will be SHA1 but some
503 algorithms (such as GOST) need to specify an alternative digest. The
504 return value indicates how strong the prefernce is 1 means optional and
505 2 is mandatory (that is it is the only supported type). Modify
506 ASN1_item_sign() to accept a NULL digest argument to indicate it should
507 use the default md. Update openssl utilities to use the default digest
508 type for signing if it is not explicitly indicated.
511 *) Use OID cross reference table in ASN1_sign() and ASN1_verify(). New
512 EVP_MD flag EVP_MD_FLAG_PKEY_METHOD_SIGNATURE. This uses the relevant
513 signing method from the key type. This effectively removes the link
514 between digests and public key types.
517 *) Add an OID cross reference table and utility functions. Its purpose is to
518 translate between signature OIDs such as SHA1WithrsaEncryption and SHA1,
519 rsaEncryption. This will allow some of the algorithm specific hackery
520 needed to use the correct OID to be removed.
523 *) Remove algorithm specific dependencies when setting PKCS7_SIGNER_INFO
524 structures for PKCS7_sign(). They are now set up by the relevant public
528 *) Add provisional EC pkey method with support for ECDSA and ECDH.
531 *) Add support for key derivation (agreement) in the API, DH method and
535 *) Add DSA pkey method and DH pkey methods, extend DH ASN1 method to support
536 public and private key formats. As a side effect these add additional
537 command line functionality not previously available: DSA signatures can be
538 generated and verified using pkeyutl and DH key support and generation in
543 [Oliver Tappe <zooey@hirschkaefer.de>]
545 *) New make target "install_html_docs" installs HTML renditions of the
547 [Oliver Tappe <zooey@hirschkaefer.de>]
549 *) New utility "genpkey" this is analagous to "genrsa" etc except it can
550 generate keys for any algorithm. Extend and update EVP_PKEY_METHOD to
551 support key and parameter generation and add initial key generation
552 functionality for RSA.
555 *) Add functions for main EVP_PKEY_method operations. The undocumented
556 functions EVP_PKEY_{encrypt,decrypt} have been renamed to
557 EVP_PKEY_{encrypt,decrypt}_old.
560 *) Initial definitions for EVP_PKEY_METHOD. This will be a high level public
561 key API, doesn't do much yet.
564 *) New function EVP_PKEY_asn1_get0_info() to retrieve information about
565 public key algorithms. New option to openssl utility:
566 "list-public-key-algorithms" to print out info.
569 *) Implement the Supported Elliptic Curves Extension for
570 ECC ciphersuites from draft-ietf-tls-ecc-12.txt.
573 *) Don't free up OIDs in OBJ_cleanup() if they are in use by EVP_MD or
574 EVP_CIPHER structures to avoid later problems in EVP_cleanup().
577 *) New utilities pkey and pkeyparam. These are similar to algorithm specific
578 utilities such as rsa, dsa, dsaparam etc except they process any key
582 *) Transfer public key printing routines to EVP_PKEY_ASN1_METHOD. New
583 functions EVP_PKEY_print_public(), EVP_PKEY_print_private(),
584 EVP_PKEY_print_param() to print public key data from an EVP_PKEY
588 *) Initial support for pluggable public key ASN1.
589 De-spaghettify the public key ASN1 handling. Move public and private
590 key ASN1 handling to a new EVP_PKEY_ASN1_METHOD structure. Relocate
591 algorithm specific handling to a single module within the relevant
592 algorithm directory. Add functions to allow (near) opaque processing
593 of public and private key structures.
596 *) Implement the Supported Point Formats Extension for
597 ECC ciphersuites from draft-ietf-tls-ecc-12.txt.
600 *) Add initial support for RFC 4279 PSK TLS ciphersuites. Add members
601 for the psk identity [hint] and the psk callback functions to the
602 SSL_SESSION, SSL and SSL_CTX structure.
605 PSK-RC4-SHA, PSK-3DES-EDE-CBC-SHA, PSK-AES128-CBC-SHA,
609 SSL_CTX_use_psk_identity_hint
610 SSL_get_psk_identity_hint
612 SSL_use_psk_identity_hint
614 [Mika Kousa and Pasi Eronen of Nokia Corporation]
616 *) Add RFC 3161 compliant time stamp request creation, response generation
617 and response verification functionality.
618 [Zoltán Glózik <zglozik@opentsa.org>, The OpenTSA Project]
620 *) Add initial support for TLS extensions, specifically for the server_name
621 extension so far. The SSL_SESSION, SSL_CTX, and SSL data structures now
622 have new members for a host name. The SSL data structure has an
623 additional member SSL_CTX *initial_ctx so that new sessions can be
624 stored in that context to allow for session resumption, even after the
625 SSL has been switched to a new SSL_CTX in reaction to a client's
626 server_name extension.
628 New functions (subject to change):
631 SSL_get_servername_type()
634 New CTRL codes and macros (subject to change):
636 SSL_CTRL_SET_TLSEXT_SERVERNAME_CB
637 - SSL_CTX_set_tlsext_servername_callback()
638 SSL_CTRL_SET_TLSEXT_SERVERNAME_ARG
639 - SSL_CTX_set_tlsext_servername_arg()
640 SSL_CTRL_SET_TLSEXT_HOSTNAME - SSL_set_tlsext_host_name()
642 openssl s_client has a new '-servername ...' option.
644 openssl s_server has new options '-servername_host ...', '-cert2 ...',
645 '-key2 ...', '-servername_fatal' (subject to change). This allows
646 testing the HostName extension for a specific single host name ('-cert'
647 and '-key' remain fallbacks for handshakes without HostName
648 negotiation). If the unrecogninzed_name alert has to be sent, this by
649 default is a warning; it becomes fatal with the '-servername_fatal'
652 [Peter Sylvester, Remy Allais, Christophe Renou]
654 *) Whirlpool hash implementation is added.
657 *) BIGNUM code on 64-bit SPARCv9 targets is switched from bn(64,64) to
658 bn(64,32). Because of instruction set limitations it doesn't have
659 any negative impact on performance. This was done mostly in order
660 to make it possible to share assembler modules, such as bn_mul_mont
661 implementations, between 32- and 64-bit builds without hassle.
664 *) Move code previously exiled into file crypto/ec/ec2_smpt.c
665 to ec2_smpl.c, and no longer require the OPENSSL_EC_BIN_PT_COMP
669 *) New candidate for BIGNUM assembler implementation, bn_mul_mont,
670 dedicated Montgomery multiplication procedure, is introduced.
671 BN_MONT_CTX is modified to allow bn_mul_mont to reach for higher
672 "64-bit" performance on certain 32-bit targets.
675 *) New option SSL_OP_NO_COMP to disable use of compression selectively
676 in SSL structures. New SSL ctrl to set maximum send fragment size.
677 Save memory by seeting the I/O buffer sizes dynamically instead of
678 using the maximum available value.
681 *) New option -V for 'openssl ciphers'. This prints the ciphersuite code
682 in addition to the text details.
685 *) Very, very preliminary EXPERIMENTAL support for printing of general
686 ASN1 structures. This currently produces rather ugly output and doesn't
687 handle several customised structures at all.
690 *) Integrated support for PVK file format and some related formats such
691 as MS PUBLICKEYBLOB and PRIVATEKEYBLOB. Command line switches to support
692 these in the 'rsa' and 'dsa' utilities.
695 *) Support for PKCS#1 RSAPublicKey format on rsa utility command line.
698 *) Remove the ancient ASN1_METHOD code. This was only ever used in one
699 place for the (very old) "NETSCAPE" format certificates which are now
700 handled using new ASN1 code equivalents.
703 *) Let the TLSv1_method() etc. functions return a 'const' SSL_METHOD
704 pointer and make the SSL_METHOD parameter in SSL_CTX_new,
705 SSL_CTX_set_ssl_version and SSL_set_ssl_method 'const'.
708 *) Modify CRL distribution points extension code to print out previously
709 unsupported fields. Enhance extension setting code to allow setting of
713 *) Add print and set support for Issuing Distribution Point CRL extension.
716 *) Change 'Configure' script to enable Camellia by default.
719 Changes between 0.9.8i and 0.9.8j [xx XXX xxxx]
721 *) Change the server-side SSL_OP_NETSCAPE_REUSE_CIPHER_CHANGE_BUG behavior
722 to ensure that even with this option, only ciphersuites in the
723 server's preference list will be accepted. (Note that the option
724 applies only when resuming a session, so the earlier behavior was
725 just about the algorithm choice for symmetric cryptography.)
728 Changes between 0.9.8h and 0.9.8i [15 Sep 2008]
730 *) Fix a state transitition in s3_srvr.c and d1_srvr.c
731 (was using SSL3_ST_CW_CLNT_HELLO_B, should be ..._ST_SW_SRVR_...).
734 *) The fix in 0.9.8c that supposedly got rid of unsafe
735 double-checked locking was incomplete for RSA blinding,
736 addressing just one layer of what turns out to have been
737 doubly unsafe triple-checked locking.
739 So now fix this for real by retiring the MONT_HELPER macro
740 in crypto/rsa/rsa_eay.c.
742 [Bodo Moeller; problem pointed out by Marius Schilder]
744 *) Various precautionary measures:
746 - Avoid size_t integer overflow in HASH_UPDATE (md32_common.h).
748 - Avoid a buffer overflow in d2i_SSL_SESSION() (ssl_asn1.c).
749 (NB: This would require knowledge of the secret session ticket key
750 to exploit, in which case you'd be SOL either way.)
752 - Change bn_nist.c so that it will properly handle input BIGNUMs
753 outside the expected range.
755 - Enforce the 'num' check in BN_div() (bn_div.c) for non-BN_DEBUG
758 [Neel Mehta, Bodo Moeller]
760 *) Allow engines to be "soft loaded" - i.e. optionally don't die if
761 the load fails. Useful for distros.
762 [Ben Laurie and the FreeBSD team]
764 *) Add support for Local Machine Keyset attribute in PKCS#12 files.
767 *) Fix BN_GF2m_mod_arr() top-bit cleanup code.
770 *) Expand ENGINE to support engine supplied SSL client certificate functions.
772 This work was sponsored by Logica.
775 *) Add CryptoAPI ENGINE to support use of RSA and DSA keys held in Windows
776 keystores. Support for SSL/TLS client authentication too.
777 Not compiled unless enable-capieng specified to Configure.
779 This work was sponsored by Logica.
782 *) Fix bug in X509_ATTRIBUTE creation: dont set attribute using
783 ASN1_TYPE_set1 if MBSTRING flag set. This bug would crash certain
784 attribute creation routines such as certifcate requests and PKCS#12
788 Changes between 0.9.8g and 0.9.8h [28 May 2008]
790 *) Fix flaw if 'Server Key exchange message' is omitted from a TLS
791 handshake which could lead to a cilent crash as found using the
792 Codenomicon TLS test suite (CVE-2008-1672)
793 [Steve Henson, Mark Cox]
795 *) Fix double free in TLS server name extensions which could lead to
796 a remote crash found by Codenomicon TLS test suite (CVE-2008-0891)
799 *) Clear error queue in SSL_CTX_use_certificate_chain_file()
801 Clear the error queue to ensure that error entries left from
802 older function calls do not interfere with the correct operation.
803 [Lutz Jaenicke, Erik de Castro Lopo]
805 *) Remove root CA certificates of commercial CAs:
807 The OpenSSL project does not recommend any specific CA and does not
808 have any policy with respect to including or excluding any CA.
809 Therefore it does not make any sense to ship an arbitrary selection
810 of root CA certificates with the OpenSSL software.
813 *) RSA OAEP patches to fix two separate invalid memory reads.
814 The first one involves inputs when 'lzero' is greater than
815 'SHA_DIGEST_LENGTH' (it would read about SHA_DIGEST_LENGTH bytes
816 before the beginning of from). The second one involves inputs where
817 the 'db' section contains nothing but zeroes (there is a one-byte
818 invalid read after the end of 'db').
819 [Ivan Nestlerode <inestlerode@us.ibm.com>]
821 *) Partial backport from 0.9.9-dev:
823 Introduce bn_mul_mont (dedicated Montgomery multiplication
824 procedure) as a candidate for BIGNUM assembler implementation.
825 While 0.9.9-dev uses assembler for various architectures, only
826 x86_64 is available by default here in the 0.9.8 branch, and
827 32-bit x86 is available through a compile-time setting.
829 To try the 32-bit x86 assembler implementation, use Configure
830 option "enable-montasm" (which exists only for this backport).
832 As "enable-montasm" for 32-bit x86 disclaims code stability
833 anyway, in this constellation we activate additional code
834 backported from 0.9.9-dev for further performance improvements,
835 namely BN_from_montgomery_word. (To enable this otherwise,
836 e.g. x86_64, try "-DMONT_FROM_WORD___NON_DEFAULT_0_9_8_BUILD".)
838 [Andy Polyakov (backport partially by Bodo Moeller)]
840 *) Add TLS session ticket callback. This allows an application to set
841 TLS ticket cipher and HMAC keys rather than relying on hardcoded fixed
842 values. This is useful for key rollover for example where several key
843 sets may exist with different names.
846 *) Reverse ENGINE-internal logic for caching default ENGINE handles.
847 This was broken until now in 0.9.8 releases, such that the only way
848 a registered ENGINE could be used (assuming it initialises
849 successfully on the host) was to explicitly set it as the default
850 for the relevant algorithms. This is in contradiction with 0.9.7
851 behaviour and the documentation. With this fix, when an ENGINE is
852 registered into a given algorithm's table of implementations, the
853 'uptodate' flag is reset so that auto-discovery will be used next
854 time a new context for that algorithm attempts to select an
856 [Ian Lister (tweaked by Geoff Thorpe)]
858 *) Backport of CMS code to OpenSSL 0.9.8. This differs from the 0.9.9
859 implemention in the following ways:
861 Lack of EVP_PKEY_ASN1_METHOD means algorithm parameters have to be
864 Lack of BER streaming support means one pass streaming processing is
865 only supported if data is detached: setting the streaming flag is
866 ignored for embedded content.
868 CMS support is disabled by default and must be explicitly enabled
869 with the enable-cms configuration option.
872 *) Update the GMP engine glue to do direct copies between BIGNUM and
873 mpz_t when openssl and GMP use the same limb size. Otherwise the
874 existing "conversion via a text string export" trick is still used.
875 [Paul Sheer <paulsheer@gmail.com>]
877 *) Zlib compression BIO. This is a filter BIO which compressed and
878 uncompresses any data passed through it.
881 *) Add AES_wrap_key() and AES_unwrap_key() functions to implement
882 RFC3394 compatible AES key wrapping.
885 *) Add utility functions to handle ASN1 structures. ASN1_STRING_set0():
886 sets string data without copying. X509_ALGOR_set0() and
887 X509_ALGOR_get0(): set and retrieve X509_ALGOR (AlgorithmIdentifier)
888 data. Attribute function X509at_get0_data_by_OBJ(): retrieves data
889 from an X509_ATTRIBUTE structure optionally checking it occurs only
890 once. ASN1_TYPE_set1(): set and ASN1_TYPE structure copying supplied
894 *) Fix BN flag handling in RSA_eay_mod_exp() and BN_MONT_CTX_set()
895 to get the expected BN_FLG_CONSTTIME behavior.
896 [Bodo Moeller (Google)]
900 - fixed wrong usage of ioctlsocket() when build for LIBC BSD sockets
901 - fixed do_tests.pl to run the test suite with CLIB builds too (CLIB_OPT)
902 - added some more tests to do_tests.pl
903 - fixed RunningProcess usage so that it works with newer LIBC NDKs too
904 - removed usage of BN_LLONG for CLIB builds to avoid runtime dependency
905 - added new Configure targets netware-clib-bsdsock, netware-clib-gcc,
906 netware-clib-bsdsock-gcc, netware-libc-bsdsock-gcc
907 - various changes to netware.pl to enable gcc-cross builds on Win32
909 - changed crypto/bio/b_sock.c to work with macro functions (CLIB BSD)
910 - various changes to fix missing prototype warnings
911 - fixed x86nasm.pl to create correct asm files for NASM COFF output
912 - added AES, WHIRLPOOL and CPUID assembler code to build files
913 - added missing AES assembler make rules to mk1mf.pl
914 - fixed order of includes in apps/ocsp.c so that e_os.h settings apply
915 [Guenter Knauf <eflash@gmx.net>]
917 *) Implement certificate status request TLS extension defined in RFC3546.
918 A client can set the appropriate parameters and receive the encoded
919 OCSP response via a callback. A server can query the supplied parameters
920 and set the encoded OCSP response in the callback. Add simplified examples
921 to s_client and s_server.
924 Changes between 0.9.8f and 0.9.8g [19 Oct 2007]
927 + Binary incompatibility of ssl_ctx_st structure
928 + DTLS interoperation with non-compliant servers
929 + Don't call get_session_cb() without proposed session
930 + Fix ia64 assembler code
931 [Andy Polyakov, Steve Henson]
933 Changes between 0.9.8e and 0.9.8f [11 Oct 2007]
935 *) DTLS Handshake overhaul. There were longstanding issues with
936 OpenSSL DTLS implementation, which were making it impossible for
937 RFC 4347 compliant client to communicate with OpenSSL server.
938 Unfortunately just fixing these incompatibilities would "cut off"
939 pre-0.9.8f clients. To allow for hassle free upgrade post-0.9.8e
940 server keeps tolerating non RFC compliant syntax. The opposite is
941 not true, 0.9.8f client can not communicate with earlier server.
942 This update even addresses CVE-2007-4995.
945 *) Changes to avoid need for function casts in OpenSSL: some compilers
946 (gcc 4.2 and later) reject their use.
947 [Kurt Roeckx <kurt@roeckx.be>, Peter Hartley <pdh@utter.chaos.org.uk>,
950 *) Add RFC4507 support to OpenSSL. This includes the corrections in
951 RFC4507bis. The encrypted ticket format is an encrypted encoded
952 SSL_SESSION structure, that way new session features are automatically
955 If a client application caches session in an SSL_SESSION structure
956 support is transparent because tickets are now stored in the encoded
959 The SSL_CTX structure automatically generates keys for ticket
960 protection in servers so again support should be possible
961 with no application modification.
963 If a client or server wishes to disable RFC4507 support then the option
964 SSL_OP_NO_TICKET can be set.
966 Add a TLS extension debugging callback to allow the contents of any client
967 or server extensions to be examined.
969 This work was sponsored by Google.
972 *) Add initial support for TLS extensions, specifically for the server_name
973 extension so far. The SSL_SESSION, SSL_CTX, and SSL data structures now
974 have new members for a host name. The SSL data structure has an
975 additional member SSL_CTX *initial_ctx so that new sessions can be
976 stored in that context to allow for session resumption, even after the
977 SSL has been switched to a new SSL_CTX in reaction to a client's
978 server_name extension.
980 New functions (subject to change):
983 SSL_get_servername_type()
986 New CTRL codes and macros (subject to change):
988 SSL_CTRL_SET_TLSEXT_SERVERNAME_CB
989 - SSL_CTX_set_tlsext_servername_callback()
990 SSL_CTRL_SET_TLSEXT_SERVERNAME_ARG
991 - SSL_CTX_set_tlsext_servername_arg()
992 SSL_CTRL_SET_TLSEXT_HOSTNAME - SSL_set_tlsext_host_name()
994 openssl s_client has a new '-servername ...' option.
996 openssl s_server has new options '-servername_host ...', '-cert2 ...',
997 '-key2 ...', '-servername_fatal' (subject to change). This allows
998 testing the HostName extension for a specific single host name ('-cert'
999 and '-key' remain fallbacks for handshakes without HostName
1000 negotiation). If the unrecogninzed_name alert has to be sent, this by
1001 default is a warning; it becomes fatal with the '-servername_fatal'
1004 [Peter Sylvester, Remy Allais, Christophe Renou, Steve Henson]
1006 *) Add AES and SSE2 assembly language support to VC++ build.
1009 *) Mitigate attack on final subtraction in Montgomery reduction.
1012 *) Fix crypto/ec/ec_mult.c to work properly with scalars of value 0
1013 (which previously caused an internal error).
1016 *) Squeeze another 10% out of IGE mode when in != out.
1019 *) AES IGE mode speedup.
1020 [Dean Gaudet (Google)]
1022 *) Add the Korean symmetric 128-bit cipher SEED (see
1023 http://www.kisa.or.kr/kisa/seed/jsp/seed_eng.jsp) and
1024 add SEED ciphersuites from RFC 4162:
1026 TLS_RSA_WITH_SEED_CBC_SHA = "SEED-SHA"
1027 TLS_DHE_DSS_WITH_SEED_CBC_SHA = "DHE-DSS-SEED-SHA"
1028 TLS_DHE_RSA_WITH_SEED_CBC_SHA = "DHE-RSA-SEED-SHA"
1029 TLS_DH_anon_WITH_SEED_CBC_SHA = "ADH-SEED-SHA"
1031 To minimize changes between patchlevels in the OpenSSL 0.9.8
1032 series, SEED remains excluded from compilation unless OpenSSL
1033 is configured with 'enable-seed'.
1034 [KISA, Bodo Moeller]
1036 *) Mitigate branch prediction attacks, which can be practical if a
1037 single processor is shared, allowing a spy process to extract
1038 information. For detailed background information, see
1039 http://eprint.iacr.org/2007/039 (O. Aciicmez, S. Gueron,
1040 J.-P. Seifert, "New Branch Prediction Vulnerabilities in OpenSSL
1041 and Necessary Software Countermeasures"). The core of the change
1042 are new versions BN_div_no_branch() and
1043 BN_mod_inverse_no_branch() of BN_div() and BN_mod_inverse(),
1044 respectively, which are slower, but avoid the security-relevant
1045 conditional branches. These are automatically called by BN_div()
1046 and BN_mod_inverse() if the flag BN_FLG_CONSTTIME is set for one
1047 of the input BIGNUMs. Also, BN_is_bit_set() has been changed to
1048 remove a conditional branch.
1050 BN_FLG_CONSTTIME is the new name for the previous
1051 BN_FLG_EXP_CONSTTIME flag, since it now affects more than just
1052 modular exponentiation. (Since OpenSSL 0.9.7h, setting this flag
1053 in the exponent causes BN_mod_exp_mont() to use the alternative
1054 implementation in BN_mod_exp_mont_consttime().) The old name
1055 remains as a deprecated alias.
1057 Similary, RSA_FLAG_NO_EXP_CONSTTIME is replaced by a more general
1058 RSA_FLAG_NO_CONSTTIME flag since the RSA implementation now uses
1059 constant-time implementations for more than just exponentiation.
1060 Here too the old name is kept as a deprecated alias.
1062 BN_BLINDING_new() will now use BN_dup() for the modulus so that
1063 the BN_BLINDING structure gets an independent copy of the
1064 modulus. This means that the previous "BIGNUM *m" argument to
1065 BN_BLINDING_new() and to BN_BLINDING_create_param() now
1066 essentially becomes "const BIGNUM *m", although we can't actually
1067 change this in the header file before 0.9.9. It allows
1068 RSA_setup_blinding() to use BN_with_flags() on the modulus to
1069 enable BN_FLG_CONSTTIME.
1071 [Matthew D Wood (Intel Corp)]
1073 *) In the SSL/TLS server implementation, be strict about session ID
1074 context matching (which matters if an application uses a single
1075 external cache for different purposes). Previously,
1076 out-of-context reuse was forbidden only if SSL_VERIFY_PEER was
1077 set. This did ensure strict client verification, but meant that,
1078 with applications using a single external cache for quite
1079 different requirements, clients could circumvent ciphersuite
1080 restrictions for a given session ID context by starting a session
1081 in a different context.
1084 *) Include "!eNULL" in SSL_DEFAULT_CIPHER_LIST to make sure that
1085 a ciphersuite string such as "DEFAULT:RSA" cannot enable
1086 authentication-only ciphersuites.
1089 *) Update the SSL_get_shared_ciphers() fix CVE-2006-3738 which was
1090 not complete and could lead to a possible single byte overflow
1091 (CVE-2007-5135) [Ben Laurie]
1093 Changes between 0.9.8d and 0.9.8e [23 Feb 2007]
1095 *) Since AES128 and AES256 (and similarly Camellia128 and
1096 Camellia256) share a single mask bit in the logic of
1097 ssl/ssl_ciph.c, the code for masking out disabled ciphers needs a
1098 kludge to work properly if AES128 is available and AES256 isn't
1099 (or if Camellia128 is available and Camellia256 isn't).
1102 *) Fix the BIT STRING encoding generated by crypto/ec/ec_asn1.c
1103 (within i2d_ECPrivateKey, i2d_ECPKParameters, i2d_ECParameters):
1104 When a point or a seed is encoded in a BIT STRING, we need to
1105 prevent the removal of trailing zero bits to get the proper DER
1106 encoding. (By default, crypto/asn1/a_bitstr.c assumes the case
1107 of a NamedBitList, for which trailing 0 bits need to be removed.)
1110 *) Have SSL/TLS server implementation tolerate "mismatched" record
1111 protocol version while receiving ClientHello even if the
1112 ClientHello is fragmented. (The server can't insist on the
1113 particular protocol version it has chosen before the ServerHello
1114 message has informed the client about his choice.)
1117 *) Add RFC 3779 support.
1118 [Rob Austein for ARIN, Ben Laurie]
1120 *) Load error codes if they are not already present instead of using a
1121 static variable. This allows them to be cleanly unloaded and reloaded.
1122 Improve header file function name parsing.
1125 *) extend SMTP and IMAP protocol emulation in s_client to use EHLO
1126 or CAPABILITY handshake as required by RFCs.
1129 Changes between 0.9.8c and 0.9.8d [28 Sep 2006]
1131 *) Introduce limits to prevent malicious keys being able to
1132 cause a denial of service. (CVE-2006-2940)
1133 [Steve Henson, Bodo Moeller]
1135 *) Fix ASN.1 parsing of certain invalid structures that can result
1136 in a denial of service. (CVE-2006-2937) [Steve Henson]
1138 *) Fix buffer overflow in SSL_get_shared_ciphers() function.
1139 (CVE-2006-3738) [Tavis Ormandy and Will Drewry, Google Security Team]
1141 *) Fix SSL client code which could crash if connecting to a
1142 malicious SSLv2 server. (CVE-2006-4343)
1143 [Tavis Ormandy and Will Drewry, Google Security Team]
1145 *) Since 0.9.8b, ciphersuite strings naming explicit ciphersuites
1146 match only those. Before that, "AES256-SHA" would be interpreted
1147 as a pattern and match "AES128-SHA" too (since AES128-SHA got
1148 the same strength classification in 0.9.7h) as we currently only
1149 have a single AES bit in the ciphersuite description bitmap.
1150 That change, however, also applied to ciphersuite strings such as
1151 "RC4-MD5" that intentionally matched multiple ciphersuites --
1152 namely, SSL 2.0 ciphersuites in addition to the more common ones
1153 from SSL 3.0/TLS 1.0.
1155 So we change the selection algorithm again: Naming an explicit
1156 ciphersuite selects this one ciphersuite, and any other similar
1157 ciphersuite (same bitmap) from *other* protocol versions.
1158 Thus, "RC4-MD5" again will properly select both the SSL 2.0
1159 ciphersuite and the SSL 3.0/TLS 1.0 ciphersuite.
1161 Since SSL 2.0 does not have any ciphersuites for which the
1162 128/256 bit distinction would be relevant, this works for now.
1163 The proper fix will be to use different bits for AES128 and
1164 AES256, which would have avoided the problems from the beginning;
1165 however, bits are scarce, so we can only do this in a new release
1166 (not just a patchlevel) when we can change the SSL_CIPHER
1167 definition to split the single 'unsigned long mask' bitmap into
1168 multiple values to extend the available space.
1172 Changes between 0.9.8b and 0.9.8c [05 Sep 2006]
1174 *) Avoid PKCS #1 v1.5 signature attack discovered by Daniel Bleichenbacher
1175 (CVE-2006-4339) [Ben Laurie and Google Security Team]
1177 *) Add AES IGE and biIGE modes.
1180 *) Change the Unix randomness entropy gathering to use poll() when
1181 possible instead of select(), since the latter has some
1182 undesirable limitations.
1183 [Darryl Miles via Richard Levitte and Bodo Moeller]
1185 *) Disable "ECCdraft" ciphersuites more thoroughly. Now special
1186 treatment in ssl/ssl_ciph.s makes sure that these ciphersuites
1187 cannot be implicitly activated as part of, e.g., the "AES" alias.
1188 However, please upgrade to OpenSSL 0.9.9[-dev] for
1189 non-experimental use of the ECC ciphersuites to get TLS extension
1190 support, which is required for curve and point format negotiation
1191 to avoid potential handshake problems.
1194 *) Disable rogue ciphersuites:
1196 - SSLv2 0x08 0x00 0x80 ("RC4-64-MD5")
1197 - SSLv3/TLSv1 0x00 0x61 ("EXP1024-RC2-CBC-MD5")
1198 - SSLv3/TLSv1 0x00 0x60 ("EXP1024-RC4-MD5")
1200 The latter two were purportedly from
1201 draft-ietf-tls-56-bit-ciphersuites-0[01].txt, but do not really
1204 Also deactivate the remaining ciphersuites from
1205 draft-ietf-tls-56-bit-ciphersuites-01.txt. These are just as
1206 unofficial, and the ID has long expired.
1209 *) Fix RSA blinding Heisenbug (problems sometimes occured on
1210 dual-core machines) and other potential thread-safety issues.
1213 *) Add the symmetric cipher Camellia (128-bit, 192-bit, 256-bit key
1214 versions), which is now available for royalty-free use
1215 (see http://info.isl.ntt.co.jp/crypt/eng/info/chiteki.html).
1216 Also, add Camellia TLS ciphersuites from RFC 4132.
1218 To minimize changes between patchlevels in the OpenSSL 0.9.8
1219 series, Camellia remains excluded from compilation unless OpenSSL
1220 is configured with 'enable-camellia'.
1223 *) Disable the padding bug check when compression is in use. The padding
1224 bug check assumes the first packet is of even length, this is not
1225 necessarily true if compresssion is enabled and can result in false
1226 positives causing handshake failure. The actual bug test is ancient
1227 code so it is hoped that implementations will either have fixed it by
1228 now or any which still have the bug do not support compression.
1231 Changes between 0.9.8a and 0.9.8b [04 May 2006]
1233 *) When applying a cipher rule check to see if string match is an explicit
1234 cipher suite and only match that one cipher suite if it is.
1237 *) Link in manifests for VC++ if needed.
1238 [Austin Ziegler <halostatue@gmail.com>]
1240 *) Update support for ECC-based TLS ciphersuites according to
1241 draft-ietf-tls-ecc-12.txt with proposed changes (but without
1242 TLS extensions, which are supported starting with the 0.9.9
1243 branch, not in the OpenSSL 0.9.8 branch).
1246 *) New functions EVP_CIPHER_CTX_new() and EVP_CIPHER_CTX_free() to support
1247 opaque EVP_CIPHER_CTX handling.
1250 *) Fixes and enhancements to zlib compression code. We now only use
1251 "zlib1.dll" and use the default __cdecl calling convention on Win32
1252 to conform with the standards mentioned here:
1253 http://www.zlib.net/DLL_FAQ.txt
1254 Static zlib linking now works on Windows and the new --with-zlib-include
1255 --with-zlib-lib options to Configure can be used to supply the location
1256 of the headers and library. Gracefully handle case where zlib library
1260 *) Several fixes and enhancements to the OID generation code. The old code
1261 sometimes allowed invalid OIDs (1.X for X >= 40 for example), couldn't
1262 handle numbers larger than ULONG_MAX, truncated printing and had a
1263 non standard OBJ_obj2txt() behaviour.
1266 *) Add support for building of engines under engine/ as shared libraries
1267 under VC++ build system.
1270 *) Corrected the numerous bugs in the Win32 path splitter in DSO.
1271 Hopefully, we will not see any false combination of paths any more.
1274 Changes between 0.9.8 and 0.9.8a [11 Oct 2005]
1276 *) Remove the functionality of SSL_OP_MSIE_SSLV2_RSA_PADDING
1277 (part of SSL_OP_ALL). This option used to disable the
1278 countermeasure against man-in-the-middle protocol-version
1279 rollback in the SSL 2.0 server implementation, which is a bad
1280 idea. (CVE-2005-2969)
1282 [Bodo Moeller; problem pointed out by Yutaka Oiwa (Research Center
1283 for Information Security, National Institute of Advanced Industrial
1284 Science and Technology [AIST], Japan)]
1286 *) Add two function to clear and return the verify parameter flags.
1289 *) Keep cipherlists sorted in the source instead of sorting them at
1290 runtime, thus removing the need for a lock.
1293 *) Avoid some small subgroup attacks in Diffie-Hellman.
1294 [Nick Mathewson and Ben Laurie]
1296 *) Add functions for well-known primes.
1299 *) Extended Windows CE support.
1300 [Satoshi Nakamura and Andy Polyakov]
1302 *) Initialize SSL_METHOD structures at compile time instead of during
1303 runtime, thus removing the need for a lock.
1306 *) Make PKCS7_decrypt() work even if no certificate is supplied by
1307 attempting to decrypt each encrypted key in turn. Add support to
1311 Changes between 0.9.7h and 0.9.8 [05 Jul 2005]
1313 [NB: OpenSSL 0.9.7i and later 0.9.7 patch levels were released after
1316 *) Add libcrypto.pc and libssl.pc for those who feel they need them.
1319 *) Change CA.sh and CA.pl so they don't bundle the CSR and the private
1320 key into the same file any more.
1323 *) Add initial support for Win64, both IA64 and AMD64/x64 flavors.
1326 *) Add -utf8 command line and config file option to 'ca'.
1327 [Stefan <stf@udoma.org]
1329 *) Removed the macro des_crypt(), as it seems to conflict with some
1330 libraries. Use DES_crypt().
1333 *) Correct naming of the 'chil' and '4758cca' ENGINEs. This
1334 involves renaming the source and generated shared-libs for
1335 both. The engines will accept the corrected or legacy ids
1336 ('ncipher' and '4758_cca' respectively) when binding. NB,
1337 this only applies when building 'shared'.
1338 [Corinna Vinschen <vinschen@redhat.com> and Geoff Thorpe]
1340 *) Add attribute functions to EVP_PKEY structure. Modify
1341 PKCS12_create() to recognize a CSP name attribute and
1342 use it. Make -CSP option work again in pkcs12 utility.
1345 *) Add new functionality to the bn blinding code:
1346 - automatic re-creation of the BN_BLINDING parameters after
1347 a fixed number of uses (currently 32)
1348 - add new function for parameter creation
1349 - introduce flags to control the update behaviour of the
1350 BN_BLINDING parameters
1351 - hide BN_BLINDING structure
1352 Add a second BN_BLINDING slot to the RSA structure to improve
1353 performance when a single RSA object is shared among several
1357 *) Add support for DTLS.
1358 [Nagendra Modadugu <nagendra@cs.stanford.edu> and Ben Laurie]
1360 *) Add support for DER encoded private keys (SSL_FILETYPE_ASN1)
1361 to SSL_CTX_use_PrivateKey_file() and SSL_use_PrivateKey_file()
1364 *) Remove buggy and incompletet DH cert support from
1365 ssl/ssl_rsa.c and ssl/s3_both.c
1368 *) Use SHA-1 instead of MD5 as the default digest algorithm for
1369 the apps/openssl applications.
1372 *) Compile clean with "-Wall -Wmissing-prototypes
1373 -Wstrict-prototypes -Wmissing-declarations -Werror". Currently
1374 DEBUG_SAFESTACK must also be set.
1377 *) Change ./Configure so that certain algorithms can be disabled by default.
1378 The new counterpiece to "no-xxx" is "enable-xxx".
1380 The patented RC5 and MDC2 algorithms will now be disabled unless
1381 "enable-rc5" and "enable-mdc2", respectively, are specified.
1383 (IDEA remains enabled despite being patented. This is because IDEA
1384 is frequently required for interoperability, and there is no license
1385 fee for non-commercial use. As before, "no-idea" can be used to
1386 avoid this algorithm.)
1390 *) Add processing of proxy certificates (see RFC 3820). This work was
1391 sponsored by KTH (The Royal Institute of Technology in Stockholm) and
1392 EGEE (Enabling Grids for E-science in Europe).
1395 *) RC4 performance overhaul on modern architectures/implementations, such
1396 as Intel P4, IA-64 and AMD64.
1399 *) New utility extract-section.pl. This can be used specify an alternative
1400 section number in a pod file instead of having to treat each file as
1401 a separate case in Makefile. This can be done by adding two lines to the
1404 =for comment openssl_section:XXX
1406 The blank line is mandatory.
1410 *) New arguments -certform, -keyform and -pass for s_client and s_server
1411 to allow alternative format key and certificate files and passphrase
1415 *) New structure X509_VERIFY_PARAM which combines current verify parameters,
1416 update associated structures and add various utility functions.
1418 Add new policy related verify parameters, include policy checking in
1419 standard verify code. Enhance 'smime' application with extra parameters
1420 to support policy checking and print out.
1423 *) Add a new engine to support VIA PadLock ACE extensions in the VIA C3
1424 Nehemiah processors. These extensions support AES encryption in hardware
1425 as well as RNG (though RNG support is currently disabled).
1426 [Michal Ludvig <michal@logix.cz>, with help from Andy Polyakov]
1428 *) Deprecate BN_[get|set]_params() functions (they were ignored internally).
1431 *) New FIPS 180-2 algorithms, SHA-224/-256/-384/-512 are implemented.
1432 [Andy Polyakov and a number of other people]
1434 *) Improved PowerPC platform support. Most notably BIGNUM assembler
1435 implementation contributed by IBM.
1436 [Suresh Chari, Peter Waltenberg, Andy Polyakov]
1438 *) The new 'RSA_generate_key_ex' function now takes a BIGNUM for the public
1439 exponent rather than 'unsigned long'. There is a corresponding change to
1440 the new 'rsa_keygen' element of the RSA_METHOD structure.
1441 [Jelte Jansen, Geoff Thorpe]
1443 *) Functionality for creating the initial serial number file is now
1444 moved from CA.pl to the 'ca' utility with a new option -create_serial.
1446 (Before OpenSSL 0.9.7e, CA.pl used to initialize the serial
1447 number file to 1, which is bound to cause problems. To avoid
1448 the problems while respecting compatibility between different 0.9.7
1449 patchlevels, 0.9.7e employed 'openssl x509 -next_serial' in
1450 CA.pl for serial number initialization. With the new release 0.9.8,
1451 we can fix the problem directly in the 'ca' utility.)
1454 *) Reduced header interdepencies by declaring more opaque objects in
1455 ossl_typ.h. As a consequence, including some headers (eg. engine.h) will
1456 give fewer recursive includes, which could break lazy source code - so
1457 this change is covered by the OPENSSL_NO_DEPRECATED symbol. As always,
1458 developers should define this symbol when building and using openssl to
1459 ensure they track the recommended behaviour, interfaces, [etc], but
1460 backwards-compatible behaviour prevails when this isn't defined.
1463 *) New function X509_POLICY_NODE_print() which prints out policy nodes.
1466 *) Add new EVP function EVP_CIPHER_CTX_rand_key and associated functionality.
1467 This will generate a random key of the appropriate length based on the
1468 cipher context. The EVP_CIPHER can provide its own random key generation
1469 routine to support keys of a specific form. This is used in the des and
1470 3des routines to generate a key of the correct parity. Update S/MIME
1471 code to use new functions and hence generate correct parity DES keys.
1472 Add EVP_CHECK_DES_KEY #define to return an error if the key is not
1473 valid (weak or incorrect parity).
1476 *) Add a local set of CRLs that can be used by X509_verify_cert() as well
1477 as looking them up. This is useful when the verified structure may contain
1478 CRLs, for example PKCS#7 signedData. Modify PKCS7_verify() to use any CRLs
1479 present unless the new PKCS7_NO_CRL flag is asserted.
1482 *) Extend ASN1 oid configuration module. It now additionally accepts the
1485 shortName = some long name, 1.2.3.4
1488 *) Reimplemented the BN_CTX implementation. There is now no more static
1489 limitation on the number of variables it can handle nor the depth of the
1490 "stack" handling for BN_CTX_start()/BN_CTX_end() pairs. The stack
1491 information can now expand as required, and rather than having a single
1492 static array of bignums, BN_CTX now uses a linked-list of such arrays
1493 allowing it to expand on demand whilst maintaining the usefulness of
1494 BN_CTX's "bundling".
1497 *) Add a missing BN_CTX parameter to the 'rsa_mod_exp' callback in RSA_METHOD
1498 to allow all RSA operations to function using a single BN_CTX.
1501 *) Preliminary support for certificate policy evaluation and checking. This
1502 is initially intended to pass the tests outlined in "Conformance Testing
1503 of Relying Party Client Certificate Path Processing Logic" v1.07.
1506 *) bn_dup_expand() has been deprecated, it was introduced in 0.9.7 and
1507 remained unused and not that useful. A variety of other little bignum
1508 tweaks and fixes have also been made continuing on from the audit (see
1512 *) Constify all or almost all d2i, c2i, s2i and r2i functions, along with
1513 associated ASN1, EVP and SSL functions and old ASN1 macros.
1516 *) BN_zero() only needs to set 'top' and 'neg' to zero for correct results,
1517 and this should never fail. So the return value from the use of
1518 BN_set_word() (which can fail due to needless expansion) is now deprecated;
1519 if OPENSSL_NO_DEPRECATED is defined, BN_zero() is a void macro.
1522 *) BN_CTX_get() should return zero-valued bignums, providing the same
1523 initialised value as BN_new().
1524 [Geoff Thorpe, suggested by Ulf Möller]
1526 *) Support for inhibitAnyPolicy certificate extension.
1529 *) An audit of the BIGNUM code is underway, for which debugging code is
1530 enabled when BN_DEBUG is defined. This makes stricter enforcements on what
1531 is considered valid when processing BIGNUMs, and causes execution to
1532 assert() when a problem is discovered. If BN_DEBUG_RAND is defined,
1533 further steps are taken to deliberately pollute unused data in BIGNUM
1534 structures to try and expose faulty code further on. For now, openssl will
1535 (in its default mode of operation) continue to tolerate the inconsistent
1536 forms that it has tolerated in the past, but authors and packagers should
1537 consider trying openssl and their own applications when compiled with
1538 these debugging symbols defined. It will help highlight potential bugs in
1539 their own code, and will improve the test coverage for OpenSSL itself. At
1540 some point, these tighter rules will become openssl's default to improve
1541 maintainability, though the assert()s and other overheads will remain only
1542 in debugging configurations. See bn.h for more details.
1543 [Geoff Thorpe, Nils Larsch, Ulf Möller]
1545 *) BN_CTX_init() has been deprecated, as BN_CTX is an opaque structure
1546 that can only be obtained through BN_CTX_new() (which implicitly
1547 initialises it). The presence of this function only made it possible
1548 to overwrite an existing structure (and cause memory leaks).
1551 *) Because of the callback-based approach for implementing LHASH as a
1552 template type, lh_insert() adds opaque objects to hash-tables and
1553 lh_doall() or lh_doall_arg() are typically used with a destructor callback
1554 to clean up those corresponding objects before destroying the hash table
1555 (and losing the object pointers). So some over-zealous constifications in
1556 LHASH have been relaxed so that lh_insert() does not take (nor store) the
1557 objects as "const" and the lh_doall[_arg] callback wrappers are not
1558 prototyped to have "const" restrictions on the object pointers they are
1559 given (and so aren't required to cast them away any more).
1562 *) The tmdiff.h API was so ugly and minimal that our own timing utility
1563 (speed) prefers to use its own implementation. The two implementations
1564 haven't been consolidated as yet (volunteers?) but the tmdiff API has had
1565 its object type properly exposed (MS_TM) instead of casting to/from "char
1566 *". This may still change yet if someone realises MS_TM and "ms_time_***"
1567 aren't necessarily the greatest nomenclatures - but this is what was used
1568 internally to the implementation so I've used that for now.
1571 *) Ensure that deprecated functions do not get compiled when
1572 OPENSSL_NO_DEPRECATED is defined. Some "openssl" subcommands and a few of
1573 the self-tests were still using deprecated key-generation functions so
1574 these have been updated also.
1577 *) Reorganise PKCS#7 code to separate the digest location functionality
1578 into PKCS7_find_digest(), digest addtion into PKCS7_bio_add_digest().
1579 New function PKCS7_set_digest() to set the digest type for PKCS#7
1580 digestedData type. Add additional code to correctly generate the
1581 digestedData type and add support for this type in PKCS7 initialization
1585 *) New function PKCS7_set0_type_other() this initializes a PKCS7
1586 structure of type "other".
1589 *) Fix prime generation loop in crypto/bn/bn_prime.pl by making
1590 sure the loop does correctly stop and breaking ("division by zero")
1591 modulus operations are not performed. The (pre-generated) prime
1592 table crypto/bn/bn_prime.h was already correct, but it could not be
1593 re-generated on some platforms because of the "division by zero"
1594 situation in the script.
1595 [Ralf S. Engelschall]
1597 *) Update support for ECC-based TLS ciphersuites according to
1598 draft-ietf-tls-ecc-03.txt: the KDF1 key derivation function with
1599 SHA-1 now is only used for "small" curves (where the
1600 representation of a field element takes up to 24 bytes); for
1601 larger curves, the field element resulting from ECDH is directly
1602 used as premaster secret.
1603 [Douglas Stebila (Sun Microsystems Laboratories)]
1605 *) Add code for kP+lQ timings to crypto/ec/ectest.c, and add SEC2
1606 curve secp160r1 to the tests.
1607 [Douglas Stebila (Sun Microsystems Laboratories)]
1609 *) Add the possibility to load symbols globally with DSO.
1610 [Götz Babin-Ebell <babin-ebell@trustcenter.de> via Richard Levitte]
1612 *) Add the functions ERR_set_mark() and ERR_pop_to_mark() for better
1613 control of the error stack.
1616 *) Add support for STORE in ENGINE.
1619 *) Add the STORE type. The intention is to provide a common interface
1620 to certificate and key stores, be they simple file-based stores, or
1621 HSM-type store, or LDAP stores, or...
1622 NOTE: The code is currently UNTESTED and isn't really used anywhere.
1625 *) Add a generic structure called OPENSSL_ITEM. This can be used to
1626 pass a list of arguments to any function as well as provide a way
1627 for a function to pass data back to the caller.
1630 *) Add the functions BUF_strndup() and BUF_memdup(). BUF_strndup()
1631 works like BUF_strdup() but can be used to duplicate a portion of
1632 a string. The copy gets NUL-terminated. BUF_memdup() duplicates
1636 *) Add the function sk_find_ex() which works like sk_find(), but will
1637 return an index to an element even if an exact match couldn't be
1638 found. The index is guaranteed to point at the element where the
1639 searched-for key would be inserted to preserve sorting order.
1642 *) Add the function OBJ_bsearch_ex() which works like OBJ_bsearch() but
1643 takes an extra flags argument for optional functionality. Currently,
1644 the following flags are defined:
1646 OBJ_BSEARCH_VALUE_ON_NOMATCH
1647 This one gets OBJ_bsearch_ex() to return a pointer to the first
1648 element where the comparing function returns a negative or zero
1651 OBJ_BSEARCH_FIRST_VALUE_ON_MATCH
1652 This one gets OBJ_bsearch_ex() to return a pointer to the first
1653 element where the comparing function returns zero. This is useful
1654 if there are more than one element where the comparing function
1658 *) Make it possible to create self-signed certificates with 'openssl ca'
1659 in such a way that the self-signed certificate becomes part of the
1660 CA database and uses the same mechanisms for serial number generation
1661 as all other certificate signing. The new flag '-selfsign' enables
1662 this functionality. Adapt CA.sh and CA.pl.in.
1665 *) Add functionality to check the public key of a certificate request
1666 against a given private. This is useful to check that a certificate
1667 request can be signed by that key (self-signing).
1670 *) Make it possible to have multiple active certificates with the same
1671 subject in the CA index file. This is done only if the keyword
1672 'unique_subject' is set to 'no' in the main CA section (default
1673 if 'CA_default') of the configuration file. The value is saved
1674 with the database itself in a separate index attribute file,
1675 named like the index file with '.attr' appended to the name.
1678 *) Generate muti valued AVAs using '+' notation in config files for
1682 *) Support for nameConstraints certificate extension.
1685 *) Support for policyConstraints certificate extension.
1688 *) Support for policyMappings certificate extension.
1691 *) Make sure the default DSA_METHOD implementation only uses its
1692 dsa_mod_exp() and/or bn_mod_exp() handlers if they are non-NULL,
1693 and change its own handlers to be NULL so as to remove unnecessary
1694 indirection. This lets alternative implementations fallback to the
1695 default implementation more easily.
1698 *) Support for directoryName in GeneralName related extensions
1702 *) Make it possible to link applications using Makefile.shared.
1703 Make that possible even when linking against static libraries!
1706 *) Support for single pass processing for S/MIME signing. This now
1707 means that S/MIME signing can be done from a pipe, in addition
1708 cleartext signing (multipart/signed type) is effectively streaming
1709 and the signed data does not need to be all held in memory.
1711 This is done with a new flag PKCS7_STREAM. When this flag is set
1712 PKCS7_sign() only initializes the PKCS7 structure and the actual signing
1713 is done after the data is output (and digests calculated) in
1714 SMIME_write_PKCS7().
1717 *) Add full support for -rpath/-R, both in shared libraries and
1718 applications, at least on the platforms where it's known how
1722 *) In crypto/ec/ec_mult.c, implement fast point multiplication with
1723 precomputation, based on wNAF splitting: EC_GROUP_precompute_mult()
1724 will now compute a table of multiples of the generator that
1725 makes subsequent invocations of EC_POINTs_mul() or EC_POINT_mul()
1726 faster (notably in the case of a single point multiplication,
1727 scalar * generator).
1728 [Nils Larsch, Bodo Moeller]
1730 *) IPv6 support for certificate extensions. The various extensions
1731 which use the IP:a.b.c.d can now take IPv6 addresses using the
1732 formats of RFC1884 2.2 . IPv6 addresses are now also displayed
1736 *) Added an ENGINE that implements RSA by performing private key
1737 exponentiations with the GMP library. The conversions to and from
1738 GMP's mpz_t format aren't optimised nor are any montgomery forms
1739 cached, and on x86 it appears OpenSSL's own performance has caught up.
1740 However there are likely to be other architectures where GMP could
1741 provide a boost. This ENGINE is not built in by default, but it can be
1742 specified at Configure time and should be accompanied by the necessary
1743 linker additions, eg;
1744 ./config -DOPENSSL_USE_GMP -lgmp
1747 *) "openssl engine" will not display ENGINE/DSO load failure errors when
1748 testing availability of engines with "-t" - the old behaviour is
1749 produced by increasing the feature's verbosity with "-tt".
1752 *) ECDSA routines: under certain error conditions uninitialized BN objects
1753 could be freed. Solution: make sure initialization is performed early
1754 enough. (Reported and fix supplied by Nils Larsch <nla@trustcenter.de>
1758 *) Key-generation can now be implemented in RSA_METHOD, DSA_METHOD
1759 and DH_METHOD (eg. by ENGINE implementations) to override the normal
1760 software implementations. For DSA and DH, parameter generation can
1761 also be overriden by providing the appropriate method callbacks.
1764 *) Change the "progress" mechanism used in key-generation and
1765 primality testing to functions that take a new BN_GENCB pointer in
1766 place of callback/argument pairs. The new API functions have "_ex"
1767 postfixes and the older functions are reimplemented as wrappers for
1768 the new ones. The OPENSSL_NO_DEPRECATED symbol can be used to hide
1769 declarations of the old functions to help (graceful) attempts to
1770 migrate to the new functions. Also, the new key-generation API
1771 functions operate on a caller-supplied key-structure and return
1772 success/failure rather than returning a key or NULL - this is to
1773 help make "keygen" another member function of RSA_METHOD etc.
1775 Example for using the new callback interface:
1777 int (*my_callback)(int a, int b, BN_GENCB *cb) = ...;
1781 BN_GENCB_set(&my_cb, my_callback, my_arg);
1783 return BN_is_prime_ex(some_bignum, BN_prime_checks, NULL, &cb);
1784 /* For the meaning of a, b in calls to my_callback(), see the
1785 * documentation of the function that calls the callback.
1786 * cb will point to my_cb; my_arg can be retrieved as cb->arg.
1787 * my_callback should return 1 if it wants BN_is_prime_ex()
1788 * to continue, or 0 to stop.
1793 *) Change the ZLIB compression method to be stateful, and make it
1794 available to TLS with the number defined in
1795 draft-ietf-tls-compression-04.txt.
1798 *) Add the ASN.1 structures and functions for CertificatePair, which
1799 is defined as follows (according to X.509_4thEditionDraftV6.pdf):
1801 CertificatePair ::= SEQUENCE {
1802 forward [0] Certificate OPTIONAL,
1803 reverse [1] Certificate OPTIONAL,
1804 -- at least one of the pair shall be present -- }
1806 Also implement the PEM functions to read and write certificate
1807 pairs, and defined the PEM tag as "CERTIFICATE PAIR".
1809 This needed to be defined, mostly for the sake of the LDAP
1810 attribute crossCertificatePair, but may prove useful elsewhere as
1814 *) Make it possible to inhibit symlinking of shared libraries in
1815 Makefile.shared, for Cygwin's sake.
1818 *) Extend the BIGNUM API by creating a function
1819 void BN_set_negative(BIGNUM *a, int neg);
1820 and a macro that behave like
1821 int BN_is_negative(const BIGNUM *a);
1823 to avoid the need to access 'a->neg' directly in applications.
1826 *) Implement fast modular reduction for pseudo-Mersenne primes
1827 used in NIST curves (crypto/bn/bn_nist.c, crypto/ec/ecp_nist.c).
1828 EC_GROUP_new_curve_GFp() will now automatically use this
1830 [Nils Larsch <nla@trustcenter.de>]
1832 *) Add new lock type (CRYPTO_LOCK_BN).
1835 *) Change the ENGINE framework to automatically load engines
1836 dynamically from specific directories unless they could be
1837 found to already be built in or loaded. Move all the
1838 current engines except for the cryptodev one to a new
1840 The engines in engines/ are built as shared libraries if
1841 the "shared" options was given to ./Configure or ./config.
1842 Otherwise, they are inserted in libcrypto.a.
1843 /usr/local/ssl/engines is the default directory for dynamic
1844 engines, but that can be overriden at configure time through
1845 the usual use of --prefix and/or --openssldir, and at run
1846 time with the environment variable OPENSSL_ENGINES.
1847 [Geoff Thorpe and Richard Levitte]
1849 *) Add Makefile.shared, a helper makefile to build shared
1850 libraries. Addapt Makefile.org.
1853 *) Add version info to Win32 DLLs.
1854 [Peter 'Luna' Runestig" <peter@runestig.com>]
1856 *) Add new 'medium level' PKCS#12 API. Certificates and keys
1857 can be added using this API to created arbitrary PKCS#12
1858 files while avoiding the low level API.
1860 New options to PKCS12_create(), key or cert can be NULL and
1861 will then be omitted from the output file. The encryption
1862 algorithm NIDs can be set to -1 for no encryption, the mac
1863 iteration count can be set to 0 to omit the mac.
1865 Enhance pkcs12 utility by making the -nokeys and -nocerts
1866 options work when creating a PKCS#12 file. New option -nomac
1867 to omit the mac, NONE can be set for an encryption algorithm.
1868 New code is modified to use the enhanced PKCS12_create()
1869 instead of the low level API.
1872 *) Extend ASN1 encoder to support indefinite length constructed
1873 encoding. This can output sequences tags and octet strings in
1874 this form. Modify pk7_asn1.c to support indefinite length
1875 encoding. This is experimental and needs additional code to
1876 be useful, such as an ASN1 bio and some enhanced streaming
1879 Extend template encode functionality so that tagging is passed
1880 down to the template encoder.
1883 *) Let 'openssl req' fail if an argument to '-newkey' is not
1884 recognized instead of using RSA as a default.
1887 *) Add support for ECC-based ciphersuites from draft-ietf-tls-ecc-01.txt.
1888 As these are not official, they are not included in "ALL";
1889 the "ECCdraft" ciphersuite group alias can be used to select them.
1890 [Vipul Gupta and Sumit Gupta (Sun Microsystems Laboratories)]
1892 *) Add ECDH engine support.
1893 [Nils Gura and Douglas Stebila (Sun Microsystems Laboratories)]
1895 *) Add ECDH in new directory crypto/ecdh/.
1896 [Douglas Stebila (Sun Microsystems Laboratories)]
1898 *) Let BN_rand_range() abort with an error after 100 iterations
1899 without success (which indicates a broken PRNG).
1902 *) Change BN_mod_sqrt() so that it verifies that the input value
1903 is really the square of the return value. (Previously,
1904 BN_mod_sqrt would show GIGO behaviour.)
1907 *) Add named elliptic curves over binary fields from X9.62, SECG,
1908 and WAP/WTLS; add OIDs that were still missing.
1910 [Sheueling Chang Shantz and Douglas Stebila
1911 (Sun Microsystems Laboratories)]
1913 *) Extend the EC library for elliptic curves over binary fields
1914 (new files ec2_smpl.c, ec2_smpt.c, ec2_mult.c in crypto/ec/).
1917 EC_GF2m_simple_method
1921 EC_GROUP_new_curve_GF2m
1922 EC_GROUP_set_curve_GF2m
1923 EC_GROUP_get_curve_GF2m
1924 EC_POINT_set_affine_coordinates_GF2m
1925 EC_POINT_get_affine_coordinates_GF2m
1926 EC_POINT_set_compressed_coordinates_GF2m
1928 Point compression for binary fields is disabled by default for
1929 patent reasons (compile with OPENSSL_EC_BIN_PT_COMP defined to
1932 As binary polynomials are represented as BIGNUMs, various members
1933 of the EC_GROUP and EC_POINT data structures can be shared
1934 between the implementations for prime fields and binary fields;
1935 the above ..._GF2m functions (except for EX_GROUP_new_curve_GF2m)
1936 are essentially identical to their ..._GFp counterparts.
1937 (For simplicity, the '..._GFp' prefix has been dropped from
1938 various internal method names.)
1940 An internal 'field_div' method (similar to 'field_mul' and
1941 'field_sqr') has been added; this is used only for binary fields.
1943 [Sheueling Chang Shantz and Douglas Stebila
1944 (Sun Microsystems Laboratories)]
1946 *) Optionally dispatch EC_POINT_mul(), EC_POINT_precompute_mult()
1947 through methods ('mul', 'precompute_mult').
1949 The generic implementations (now internally called 'ec_wNAF_mul'
1950 and 'ec_wNAF_precomputed_mult') remain the default if these
1951 methods are undefined.
1953 [Sheueling Chang Shantz and Douglas Stebila
1954 (Sun Microsystems Laboratories)]
1956 *) New function EC_GROUP_get_degree, which is defined through
1957 EC_METHOD. For curves over prime fields, this returns the bit
1958 length of the modulus.
1960 [Sheueling Chang Shantz and Douglas Stebila
1961 (Sun Microsystems Laboratories)]
1963 *) New functions EC_GROUP_dup, EC_POINT_dup.
1964 (These simply call ..._new and ..._copy).
1966 [Sheueling Chang Shantz and Douglas Stebila
1967 (Sun Microsystems Laboratories)]
1969 *) Add binary polynomial arithmetic software in crypto/bn/bn_gf2m.c.
1970 Polynomials are represented as BIGNUMs (where the sign bit is not
1971 used) in the following functions [macros]:
1974 BN_GF2m_sub [= BN_GF2m_add]
1975 BN_GF2m_mod [wrapper for BN_GF2m_mod_arr]
1976 BN_GF2m_mod_mul [wrapper for BN_GF2m_mod_mul_arr]
1977 BN_GF2m_mod_sqr [wrapper for BN_GF2m_mod_sqr_arr]
1979 BN_GF2m_mod_exp [wrapper for BN_GF2m_mod_exp_arr]
1980 BN_GF2m_mod_sqrt [wrapper for BN_GF2m_mod_sqrt_arr]
1981 BN_GF2m_mod_solve_quad [wrapper for BN_GF2m_mod_solve_quad_arr]
1982 BN_GF2m_cmp [= BN_ucmp]
1984 (Note that only the 'mod' functions are actually for fields GF(2^m).
1985 BN_GF2m_add() is misnomer, but this is for the sake of consistency.)
1987 For some functions, an the irreducible polynomial defining a
1988 field can be given as an 'unsigned int[]' with strictly
1989 decreasing elements giving the indices of those bits that are set;
1990 i.e., p[] represents the polynomial
1991 f(t) = t^p[0] + t^p[1] + ... + t^p[k]
1993 p[0] > p[1] > ... > p[k] = 0.
1994 This applies to the following functions:
1999 BN_GF2m_mod_inv_arr [wrapper for BN_GF2m_mod_inv]
2000 BN_GF2m_mod_div_arr [wrapper for BN_GF2m_mod_div]
2002 BN_GF2m_mod_sqrt_arr
2003 BN_GF2m_mod_solve_quad_arr
2007 Conversion can be performed by the following functions:
2012 bntest.c has additional tests for binary polynomial arithmetic.
2014 Two implementations for BN_GF2m_mod_div() are available.
2015 The default algorithm simply uses BN_GF2m_mod_inv() and
2016 BN_GF2m_mod_mul(). The alternative algorithm is compiled in only
2017 if OPENSSL_SUN_GF2M_DIV is defined (patent pending; read the
2018 copyright notice in crypto/bn/bn_gf2m.c before enabling it).
2020 [Sheueling Chang Shantz and Douglas Stebila
2021 (Sun Microsystems Laboratories)]
2023 *) Add new error code 'ERR_R_DISABLED' that can be used when some
2024 functionality is disabled at compile-time.
2025 [Douglas Stebila <douglas.stebila@sun.com>]
2027 *) Change default behaviour of 'openssl asn1parse' so that more
2028 information is visible when viewing, e.g., a certificate:
2030 Modify asn1_parse2 (crypto/asn1/asn1_par.c) so that in non-'dump'
2031 mode the content of non-printable OCTET STRINGs is output in a
2032 style similar to INTEGERs, but with '[HEX DUMP]' prepended to
2033 avoid the appearance of a printable string.
2034 [Nils Larsch <nla@trustcenter.de>]
2036 *) Add 'asn1_flag' and 'asn1_form' member to EC_GROUP with access
2038 EC_GROUP_set_asn1_flag()
2039 EC_GROUP_get_asn1_flag()
2040 EC_GROUP_set_point_conversion_form()
2041 EC_GROUP_get_point_conversion_form()
2042 These control ASN1 encoding details:
2043 - Curves (i.e., groups) are encoded explicitly unless asn1_flag
2044 has been set to OPENSSL_EC_NAMED_CURVE.
2045 - Points are encoded in uncompressed form by default; options for
2046 asn1_for are as for point2oct, namely
2047 POINT_CONVERSION_COMPRESSED
2048 POINT_CONVERSION_UNCOMPRESSED
2049 POINT_CONVERSION_HYBRID
2051 Also add 'seed' and 'seed_len' members to EC_GROUP with access
2054 EC_GROUP_get0_seed()
2055 EC_GROUP_get_seed_len()
2056 This is used only for ASN1 purposes (so far).
2057 [Nils Larsch <nla@trustcenter.de>]
2059 *) Add 'field_type' member to EC_METHOD, which holds the NID
2060 of the appropriate field type OID. The new function
2061 EC_METHOD_get_field_type() returns this value.
2062 [Nils Larsch <nla@trustcenter.de>]
2067 EC_POINT_point2hex()
2068 EC_POINT_hex2point()
2069 providing useful interfaces to EC_POINT_point2oct() and
2070 EC_POINT_oct2point().
2071 [Nils Larsch <nla@trustcenter.de>]
2073 *) Change internals of the EC library so that the functions
2074 EC_GROUP_set_generator()
2075 EC_GROUP_get_generator()
2076 EC_GROUP_get_order()
2077 EC_GROUP_get_cofactor()
2078 are implemented directly in crypto/ec/ec_lib.c and not dispatched
2079 to methods, which would lead to unnecessary code duplication when
2080 adding different types of curves.
2081 [Nils Larsch <nla@trustcenter.de> with input by Bodo Moeller]
2083 *) Implement compute_wNAF (crypto/ec/ec_mult.c) without BIGNUM
2084 arithmetic, and such that modified wNAFs are generated
2085 (which avoid length expansion in many cases).
2088 *) Add a function EC_GROUP_check_discriminant() (defined via
2089 EC_METHOD) that verifies that the curve discriminant is non-zero.
2091 Add a function EC_GROUP_check() that makes some sanity tests
2092 on a EC_GROUP, its generator and order. This includes
2093 EC_GROUP_check_discriminant().
2094 [Nils Larsch <nla@trustcenter.de>]
2096 *) Add ECDSA in new directory crypto/ecdsa/.
2098 Add applications 'openssl ecparam' and 'openssl ecdsa'
2099 (these are based on 'openssl dsaparam' and 'openssl dsa').
2101 ECDSA support is also included in various other files across the
2102 library. Most notably,
2103 - 'openssl req' now has a '-newkey ecdsa:file' option;
2104 - EVP_PKCS82PKEY (crypto/evp/evp_pkey.c) now can handle ECDSA;
2105 - X509_PUBKEY_get (crypto/asn1/x_pubkey.c) and
2106 d2i_PublicKey (crypto/asn1/d2i_pu.c) have been modified to make
2107 them suitable for ECDSA where domain parameters must be
2108 extracted before the specific public key;
2109 - ECDSA engine support has been added.
2110 [Nils Larsch <nla@trustcenter.de>]
2112 *) Include some named elliptic curves, and add OIDs from X9.62,
2113 SECG, and WAP/WTLS. Each curve can be obtained from the new
2115 EC_GROUP_new_by_curve_name(),
2116 and the list of available named curves can be obtained with
2117 EC_get_builtin_curves().
2118 Also add a 'curve_name' member to EC_GROUP objects, which can be
2120 EC_GROUP_set_curve_name()
2121 EC_GROUP_get_curve_name()
2122 [Nils Larsch <larsch@trustcenter.de, Bodo Moeller]
2124 *) Remove a few calls to bn_wexpand() in BN_sqr() (the one in there
2125 was actually never needed) and in BN_mul(). The removal in BN_mul()
2126 required a small change in bn_mul_part_recursive() and the addition
2127 of the functions bn_cmp_part_words(), bn_sub_part_words() and
2128 bn_add_part_words(), which do the same thing as bn_cmp_words(),
2129 bn_sub_words() and bn_add_words() except they take arrays with
2133 Changes between 0.9.7m and 0.9.7n [xx XXX xxxx]
2135 *) In the SSL/TLS server implementation, be strict about session ID
2136 context matching (which matters if an application uses a single
2137 external cache for different purposes). Previously,
2138 out-of-context reuse was forbidden only if SSL_VERIFY_PEER was
2139 set. This did ensure strict client verification, but meant that,
2140 with applications using a single external cache for quite
2141 different requirements, clients could circumvent ciphersuite
2142 restrictions for a given session ID context by starting a session
2143 in a different context.
2146 Changes between 0.9.7l and 0.9.7m [23 Feb 2007]
2148 *) Cleanse PEM buffers before freeing them since they may contain
2150 [Benjamin Bennett <ben@psc.edu>]
2152 *) Include "!eNULL" in SSL_DEFAULT_CIPHER_LIST to make sure that
2153 a ciphersuite string such as "DEFAULT:RSA" cannot enable
2154 authentication-only ciphersuites.
2157 *) Since AES128 and AES256 share a single mask bit in the logic of
2158 ssl/ssl_ciph.c, the code for masking out disabled ciphers needs a
2159 kludge to work properly if AES128 is available and AES256 isn't.
2162 *) Expand security boundary to match 1.1.1 module.
2165 *) Remove redundant features: hash file source, editing of test vectors
2166 modify fipsld to use external fips_premain.c signature.
2169 *) New perl script mkfipsscr.pl to create shell scripts or batch files to
2170 run algorithm test programs.
2173 *) Make algorithm test programs more tolerant of whitespace.
2176 *) Have SSL/TLS server implementation tolerate "mismatched" record
2177 protocol version while receiving ClientHello even if the
2178 ClientHello is fragmented. (The server can't insist on the
2179 particular protocol version it has chosen before the ServerHello
2180 message has informed the client about his choice.)
2183 *) Load error codes if they are not already present instead of using a
2184 static variable. This allows them to be cleanly unloaded and reloaded.
2187 Changes between 0.9.7k and 0.9.7l [28 Sep 2006]
2189 *) Introduce limits to prevent malicious keys being able to
2190 cause a denial of service. (CVE-2006-2940)
2191 [Steve Henson, Bodo Moeller]
2193 *) Fix ASN.1 parsing of certain invalid structures that can result
2194 in a denial of service. (CVE-2006-2937) [Steve Henson]
2196 *) Fix buffer overflow in SSL_get_shared_ciphers() function.
2197 (CVE-2006-3738) [Tavis Ormandy and Will Drewry, Google Security Team]
2199 *) Fix SSL client code which could crash if connecting to a
2200 malicious SSLv2 server. (CVE-2006-4343)
2201 [Tavis Ormandy and Will Drewry, Google Security Team]
2203 *) Change ciphersuite string processing so that an explicit
2204 ciphersuite selects this one ciphersuite (so that "AES256-SHA"
2205 will no longer include "AES128-SHA"), and any other similar
2206 ciphersuite (same bitmap) from *other* protocol versions (so that
2207 "RC4-MD5" will still include both the SSL 2.0 ciphersuite and the
2208 SSL 3.0/TLS 1.0 ciphersuite). This is a backport combining
2209 changes from 0.9.8b and 0.9.8d.
2212 Changes between 0.9.7j and 0.9.7k [05 Sep 2006]
2214 *) Avoid PKCS #1 v1.5 signature attack discovered by Daniel Bleichenbacher
2215 (CVE-2006-4339) [Ben Laurie and Google Security Team]
2217 *) Change the Unix randomness entropy gathering to use poll() when
2218 possible instead of select(), since the latter has some
2219 undesirable limitations.
2220 [Darryl Miles via Richard Levitte and Bodo Moeller]
2222 *) Disable rogue ciphersuites:
2224 - SSLv2 0x08 0x00 0x80 ("RC4-64-MD5")
2225 - SSLv3/TLSv1 0x00 0x61 ("EXP1024-RC2-CBC-MD5")
2226 - SSLv3/TLSv1 0x00 0x60 ("EXP1024-RC4-MD5")
2228 The latter two were purportedly from
2229 draft-ietf-tls-56-bit-ciphersuites-0[01].txt, but do not really
2232 Also deactive the remaining ciphersuites from
2233 draft-ietf-tls-56-bit-ciphersuites-01.txt. These are just as
2234 unofficial, and the ID has long expired.
2237 *) Fix RSA blinding Heisenbug (problems sometimes occured on
2238 dual-core machines) and other potential thread-safety issues.
2241 Changes between 0.9.7i and 0.9.7j [04 May 2006]
2243 *) Adapt fipsld and the build system to link against the validated FIPS
2244 module in FIPS mode.
2247 *) Fixes for VC++ 2005 build under Windows.
2250 *) Add new Windows build target VC-32-GMAKE for VC++. This uses GNU make
2251 from a Windows bash shell such as MSYS. It is autodetected from the
2252 "config" script when run from a VC++ environment. Modify standard VC++
2253 build to use fipscanister.o from the GNU make build.
2256 Changes between 0.9.7h and 0.9.7i [14 Oct 2005]
2258 *) Wrapped the definition of EVP_MAX_MD_SIZE in a #ifdef OPENSSL_FIPS.
2259 The value now differs depending on if you build for FIPS or not.
2260 BEWARE! A program linked with a shared FIPSed libcrypto can't be
2261 safely run with a non-FIPSed libcrypto, as it may crash because of
2262 the difference induced by this change.
2265 Changes between 0.9.7g and 0.9.7h [11 Oct 2005]
2267 *) Remove the functionality of SSL_OP_MSIE_SSLV2_RSA_PADDING
2268 (part of SSL_OP_ALL). This option used to disable the
2269 countermeasure against man-in-the-middle protocol-version
2270 rollback in the SSL 2.0 server implementation, which is a bad
2271 idea. (CVE-2005-2969)
2273 [Bodo Moeller; problem pointed out by Yutaka Oiwa (Research Center
2274 for Information Security, National Institute of Advanced Industrial
2275 Science and Technology [AIST], Japan)]
2277 *) Minimal support for X9.31 signatures and PSS padding modes. This is
2278 mainly for FIPS compliance and not fully integrated at this stage.
2281 *) For DSA signing, unless DSA_FLAG_NO_EXP_CONSTTIME is set, perform
2282 the exponentiation using a fixed-length exponent. (Otherwise,
2283 the information leaked through timing could expose the secret key
2284 after many signatures; cf. Bleichenbacher's attack on DSA with
2288 *) Make a new fixed-window mod_exp implementation the default for
2289 RSA, DSA, and DH private-key operations so that the sequence of
2290 squares and multiplies and the memory access pattern are
2291 independent of the particular secret key. This will mitigate
2292 cache-timing and potential related attacks.
2294 BN_mod_exp_mont_consttime() is the new exponentiation implementation,
2295 and this is automatically used by BN_mod_exp_mont() if the new flag
2296 BN_FLG_EXP_CONSTTIME is set for the exponent. RSA, DSA, and DH
2297 will use this BN flag for private exponents unless the flag
2298 RSA_FLAG_NO_EXP_CONSTTIME, DSA_FLAG_NO_EXP_CONSTTIME, or
2299 DH_FLAG_NO_EXP_CONSTTIME, respectively, is set.
2301 [Matthew D Wood (Intel Corp), with some changes by Bodo Moeller]
2303 *) Change the client implementation for SSLv23_method() and
2304 SSLv23_client_method() so that is uses the SSL 3.0/TLS 1.0
2305 Client Hello message format if the SSL_OP_NO_SSLv2 option is set.
2306 (Previously, the SSL 2.0 backwards compatible Client Hello
2307 message format would be used even with SSL_OP_NO_SSLv2.)
2310 *) Add support for smime-type MIME parameter in S/MIME messages which some
2314 *) New function BN_MONT_CTX_set_locked() to set montgomery parameters in
2315 a threadsafe manner. Modify rsa code to use new function and add calls
2316 to dsa and dh code (which had race conditions before).
2319 *) Include the fixed error library code in the C error file definitions
2320 instead of fixing them up at runtime. This keeps the error code
2321 structures constant.
2324 Changes between 0.9.7f and 0.9.7g [11 Apr 2005]
2326 [NB: OpenSSL 0.9.7h and later 0.9.7 patch levels were released after
2329 *) Fixes for newer kerberos headers. NB: the casts are needed because
2330 the 'length' field is signed on one version and unsigned on another
2331 with no (?) obvious way to tell the difference, without these VC++
2332 complains. Also the "definition" of FAR (blank) is no longer included
2333 nor is the error ENOMEM. KRB5_PRIVATE has to be set to 1 to pick up
2334 some needed definitions.
2337 *) Undo Cygwin change.
2340 *) Added support for proxy certificates according to RFC 3820.
2341 Because they may be a security thread to unaware applications,
2342 they must be explicitely allowed in run-time. See
2343 docs/HOWTO/proxy_certificates.txt for further information.
2346 Changes between 0.9.7e and 0.9.7f [22 Mar 2005]
2348 *) Use (SSL_RANDOM_VALUE - 4) bytes of pseudo random data when generating
2349 server and client random values. Previously
2350 (SSL_RANDOM_VALUE - sizeof(time_t)) would be used which would result in
2351 less random data when sizeof(time_t) > 4 (some 64 bit platforms).
2353 This change has negligible security impact because:
2355 1. Server and client random values still have 24 bytes of pseudo random
2358 2. Server and client random values are sent in the clear in the initial
2361 3. The master secret is derived using the premaster secret (48 bytes in
2362 size for static RSA ciphersuites) as well as client server and random
2365 The OpenSSL team would like to thank the UK NISCC for bringing this issue
2368 [Stephen Henson, reported by UK NISCC]
2370 *) Use Windows randomness collection on Cygwin.
2373 *) Fix hang in EGD/PRNGD query when communication socket is closed
2374 prematurely by EGD/PRNGD.
2375 [Darren Tucker <dtucker@zip.com.au> via Lutz Jänicke, resolves #1014]
2377 *) Prompt for pass phrases when appropriate for PKCS12 input format.
2380 *) Back-port of selected performance improvements from development
2381 branch, as well as improved support for PowerPC platforms.
2384 *) Add lots of checks for memory allocation failure, error codes to indicate
2385 failure and freeing up memory if a failure occurs.
2386 [Nauticus Networks SSL Team <openssl@nauticusnet.com>, Steve Henson]
2388 *) Add new -passin argument to dgst.
2391 *) Perform some character comparisons of different types in X509_NAME_cmp:
2392 this is needed for some certificates that reencode DNs into UTF8Strings
2393 (in violation of RFC3280) and can't or wont issue name rollover
2397 *) Make an explicit check during certificate validation to see that
2398 the CA setting in each certificate on the chain is correct. As a
2399 side effect always do the following basic checks on extensions,
2400 not just when there's an associated purpose to the check:
2402 - if there is an unhandled critical extension (unless the user
2403 has chosen to ignore this fault)
2404 - if the path length has been exceeded (if one is set at all)
2405 - that certain extensions fit the associated purpose (if one has
2409 Changes between 0.9.7d and 0.9.7e [25 Oct 2004]
2411 *) Avoid a race condition when CRLs are checked in a multi threaded
2412 environment. This would happen due to the reordering of the revoked
2413 entries during signature checking and serial number lookup. Now the
2414 encoding is cached and the serial number sort performed under a lock.
2415 Add new STACK function sk_is_sorted().
2418 *) Add Delta CRL to the extension code.
2421 *) Various fixes to s3_pkt.c so alerts are sent properly.
2422 [David Holmes <d.holmes@f5.com>]
2424 *) Reduce the chances of duplicate issuer name and serial numbers (in
2425 violation of RFC3280) using the OpenSSL certificate creation utilities.
2426 This is done by creating a random 64 bit value for the initial serial
2427 number when a serial number file is created or when a self signed
2428 certificate is created using 'openssl req -x509'. The initial serial
2429 number file is created using 'openssl x509 -next_serial' in CA.pl
2430 rather than being initialized to 1.
2433 Changes between 0.9.7c and 0.9.7d [17 Mar 2004]
2435 *) Fix null-pointer assignment in do_change_cipher_spec() revealed
2436 by using the Codenomicon TLS Test Tool (CVE-2004-0079)
2437 [Joe Orton, Steve Henson]
2439 *) Fix flaw in SSL/TLS handshaking when using Kerberos ciphersuites
2441 [Joe Orton, Steve Henson]
2443 *) Make it possible to have multiple active certificates with the same
2444 subject in the CA index file. This is done only if the keyword
2445 'unique_subject' is set to 'no' in the main CA section (default
2446 if 'CA_default') of the configuration file. The value is saved
2447 with the database itself in a separate index attribute file,
2448 named like the index file with '.attr' appended to the name.
2451 *) X509 verify fixes. Disable broken certificate workarounds when
2452 X509_V_FLAGS_X509_STRICT is set. Check CRL issuer has cRLSign set if
2453 keyUsage extension present. Don't accept CRLs with unhandled critical
2454 extensions: since verify currently doesn't process CRL extensions this
2455 rejects a CRL with *any* critical extensions. Add new verify error codes
2459 *) When creating an OCSP nonce use an OCTET STRING inside the extnValue.
2460 A clarification of RFC2560 will require the use of OCTET STRINGs and
2461 some implementations cannot handle the current raw format. Since OpenSSL
2462 copies and compares OCSP nonces as opaque blobs without any attempt at
2463 parsing them this should not create any compatibility issues.
2466 *) New md flag EVP_MD_CTX_FLAG_REUSE this allows md_data to be reused when
2467 calling EVP_MD_CTX_copy_ex() to avoid calling OPENSSL_malloc(). Without
2468 this HMAC (and other) operations are several times slower than OpenSSL
2472 *) Print out GeneralizedTime and UTCTime in ASN1_STRING_print_ex().
2473 [Peter Sylvester <Peter.Sylvester@EdelWeb.fr>]
2475 *) Use the correct content when signing type "other".
2478 Changes between 0.9.7b and 0.9.7c [30 Sep 2003]
2480 *) Fix various bugs revealed by running the NISCC test suite:
2482 Stop out of bounds reads in the ASN1 code when presented with
2483 invalid tags (CVE-2003-0543 and CVE-2003-0544).
2485 Free up ASN1_TYPE correctly if ANY type is invalid (CVE-2003-0545).
2487 If verify callback ignores invalid public key errors don't try to check
2488 certificate signature with the NULL public key.
2492 *) New -ignore_err option in ocsp application to stop the server
2493 exiting on the first error in a request.
2496 *) In ssl3_accept() (ssl/s3_srvr.c) only accept a client certificate
2497 if the server requested one: as stated in TLS 1.0 and SSL 3.0
2501 *) In ssl3_get_client_hello() (ssl/s3_srvr.c), tolerate additional
2502 extra data after the compression methods not only for TLS 1.0
2503 but also for SSL 3.0 (as required by the specification).
2504 [Bodo Moeller; problem pointed out by Matthias Loepfe]
2506 *) Change X509_certificate_type() to mark the key as exported/exportable
2507 when it's 512 *bits* long, not 512 bytes.
2510 *) Change AES_cbc_encrypt() so it outputs exact multiple of
2511 blocks during encryption.
2514 *) Various fixes to base64 BIO and non blocking I/O. On write
2515 flushes were not handled properly if the BIO retried. On read
2516 data was not being buffered properly and had various logic bugs.
2517 This also affects blocking I/O when the data being decoded is a
2521 *) Various S/MIME bugfixes and compatibility changes:
2522 output correct application/pkcs7 MIME type if
2523 PKCS7_NOOLDMIMETYPE is set. Tolerate some broken signatures.
2524 Output CR+LF for EOL if PKCS7_CRLFEOL is set (this makes opening
2525 of files as .eml work). Correctly handle very long lines in MIME
2529 Changes between 0.9.7a and 0.9.7b [10 Apr 2003]
2531 *) Countermeasure against the Klima-Pokorny-Rosa extension of
2532 Bleichbacher's attack on PKCS #1 v1.5 padding: treat
2533 a protocol version number mismatch like a decryption error
2534 in ssl3_get_client_key_exchange (ssl/s3_srvr.c).
2537 *) Turn on RSA blinding by default in the default implementation
2538 to avoid a timing attack. Applications that don't want it can call
2539 RSA_blinding_off() or use the new flag RSA_FLAG_NO_BLINDING.
2540 They would be ill-advised to do so in most cases.
2541 [Ben Laurie, Steve Henson, Geoff Thorpe, Bodo Moeller]
2543 *) Change RSA blinding code so that it works when the PRNG is not
2544 seeded (in this case, the secret RSA exponent is abused as
2545 an unpredictable seed -- if it is not unpredictable, there
2546 is no point in blinding anyway). Make RSA blinding thread-safe
2547 by remembering the creator's thread ID in rsa->blinding and
2548 having all other threads use local one-time blinding factors
2549 (this requires more computation than sharing rsa->blinding, but
2550 avoids excessive locking; and if an RSA object is not shared
2551 between threads, blinding will still be very fast).
2554 *) Fixed a typo bug that would cause ENGINE_set_default() to set an
2555 ENGINE as defaults for all supported algorithms irrespective of
2556 the 'flags' parameter. 'flags' is now honoured, so applications
2557 should make sure they are passing it correctly.
2560 *) Target "mingw" now allows native Windows code to be generated in
2561 the Cygwin environment as well as with the MinGW compiler.
2564 Changes between 0.9.7 and 0.9.7a [19 Feb 2003]
2566 *) In ssl3_get_record (ssl/s3_pkt.c), minimize information leaked
2567 via timing by performing a MAC computation even if incorrrect
2568 block cipher padding has been found. This is a countermeasure
2569 against active attacks where the attacker has to distinguish
2570 between bad padding and a MAC verification error. (CVE-2003-0078)
2572 [Bodo Moeller; problem pointed out by Brice Canvel (EPFL),
2573 Alain Hiltgen (UBS), Serge Vaudenay (EPFL), and
2574 Martin Vuagnoux (EPFL, Ilion)]
2576 *) Make the no-err option work as intended. The intention with no-err
2577 is not to have the whole error stack handling routines removed from
2578 libcrypto, it's only intended to remove all the function name and
2579 reason texts, thereby removing some of the footprint that may not
2580 be interesting if those errors aren't displayed anyway.
2582 NOTE: it's still possible for any application or module to have it's
2583 own set of error texts inserted. The routines are there, just not
2584 used by default when no-err is given.
2587 *) Add support for FreeBSD on IA64.
2588 [dirk.meyer@dinoex.sub.org via Richard Levitte, resolves #454]
2590 *) Adjust DES_cbc_cksum() so it returns the same value as the MIT
2591 Kerberos function mit_des_cbc_cksum(). Before this change,
2592 the value returned by DES_cbc_cksum() was like the one from
2593 mit_des_cbc_cksum(), except the bytes were swapped.
2594 [Kevin Greaney <Kevin.Greaney@hp.com> and Richard Levitte]
2596 *) Allow an application to disable the automatic SSL chain building.
2597 Before this a rather primitive chain build was always performed in
2598 ssl3_output_cert_chain(): an application had no way to send the
2599 correct chain if the automatic operation produced an incorrect result.
2601 Now the chain builder is disabled if either:
2603 1. Extra certificates are added via SSL_CTX_add_extra_chain_cert().
2605 2. The mode flag SSL_MODE_NO_AUTO_CHAIN is set.
2607 The reasoning behind this is that an application would not want the
2608 auto chain building to take place if extra chain certificates are
2609 present and it might also want a means of sending no additional
2610 certificates (for example the chain has two certificates and the
2614 *) Add the possibility to build without the ENGINE framework.
2615 [Steven Reddie <smr@essemer.com.au> via Richard Levitte]
2617 *) Under Win32 gmtime() can return NULL: check return value in
2618 OPENSSL_gmtime(). Add error code for case where gmtime() fails.
2621 *) DSA routines: under certain error conditions uninitialized BN objects
2622 could be freed. Solution: make sure initialization is performed early
2623 enough. (Reported and fix supplied by Ivan D Nestlerode <nestler@MIT.EDU>,
2624 Nils Larsch <nla@trustcenter.de> via PR#459)
2627 *) Another fix for SSLv2 session ID handling: the session ID was incorrectly
2628 checked on reconnect on the client side, therefore session resumption
2629 could still fail with a "ssl session id is different" error. This
2630 behaviour is masked when SSL_OP_ALL is used due to
2631 SSL_OP_MICROSOFT_SESS_ID_BUG being set.
2632 Behaviour observed by Crispin Flowerday <crispin@flowerday.cx> as
2633 followup to PR #377.
2636 *) IA-32 assembler support enhancements: unified ELF targets, support
2637 for SCO/Caldera platforms, fix for Cygwin shared build.
2640 *) Add support for FreeBSD on sparc64. As a consequence, support for
2641 FreeBSD on non-x86 processors is separate from x86 processors on
2642 the config script, much like the NetBSD support.
2643 [Richard Levitte & Kris Kennaway <kris@obsecurity.org>]
2645 Changes between 0.9.6h and 0.9.7 [31 Dec 2002]
2647 [NB: OpenSSL 0.9.6i and later 0.9.6 patch levels were released after
2650 *) Fix session ID handling in SSLv2 client code: the SERVER FINISHED
2651 code (06) was taken as the first octet of the session ID and the last
2652 octet was ignored consequently. As a result SSLv2 client side session
2653 caching could not have worked due to the session ID mismatch between
2655 Behaviour observed by Crispin Flowerday <crispin@flowerday.cx> as
2659 *) Change the declaration of needed Kerberos libraries to use EX_LIBS
2660 instead of the special (and badly supported) LIBKRB5. LIBKRB5 is
2664 *) The hw_ncipher.c engine requires dynamic locks. Unfortunately, it
2665 seems that in spite of existing for more than a year, many application
2666 author have done nothing to provide the necessary callbacks, which
2667 means that this particular engine will not work properly anywhere.
2668 This is a very unfortunate situation which forces us, in the name
2669 of usability, to give the hw_ncipher.c a static lock, which is part
2671 NOTE: This is for the 0.9.7 series ONLY. This hack will never
2672 appear in 0.9.8 or later. We EXPECT application authors to have
2673 dealt properly with this when 0.9.8 is released (unless we actually
2674 make such changes in the libcrypto locking code that changes will
2675 have to be made anyway).
2678 *) In asn1_d2i_read_bio() repeatedly call BIO_read() until all content
2679 octets have been read, EOF or an error occurs. Without this change
2680 some truncated ASN1 structures will not produce an error.
2683 *) Disable Heimdal support, since it hasn't been fully implemented.
2684 Still give the possibility to force the use of Heimdal, but with
2685 warnings and a request that patches get sent to openssl-dev.
2688 *) Add the VC-CE target, introduce the WINCE sysname, and add
2689 INSTALL.WCE and appropriate conditionals to make it build.
2690 [Steven Reddie <smr@essemer.com.au> via Richard Levitte]
2692 *) Change the DLL names for Cygwin to cygcrypto-x.y.z.dll and
2693 cygssl-x.y.z.dll, where x, y and z are the major, minor and
2694 edit numbers of the version.
2695 [Corinna Vinschen <vinschen@redhat.com> and Richard Levitte]
2697 *) Introduce safe string copy and catenation functions
2698 (BUF_strlcpy() and BUF_strlcat()).
2699 [Ben Laurie (CHATS) and Richard Levitte]
2701 *) Avoid using fixed-size buffers for one-line DNs.
2702 [Ben Laurie (CHATS)]
2704 *) Add BUF_MEM_grow_clean() to avoid information leakage when
2705 resizing buffers containing secrets, and use where appropriate.
2706 [Ben Laurie (CHATS)]
2708 *) Avoid using fixed size buffers for configuration file location.
2709 [Ben Laurie (CHATS)]
2711 *) Avoid filename truncation for various CA files.
2712 [Ben Laurie (CHATS)]
2714 *) Use sizeof in preference to magic numbers.
2715 [Ben Laurie (CHATS)]
2717 *) Avoid filename truncation in cert requests.
2718 [Ben Laurie (CHATS)]
2720 *) Add assertions to check for (supposedly impossible) buffer
2722 [Ben Laurie (CHATS)]
2724 *) Don't cache truncated DNS entries in the local cache (this could
2725 potentially lead to a spoofing attack).
2726 [Ben Laurie (CHATS)]
2728 *) Fix various buffers to be large enough for hex/decimal
2729 representations in a platform independent manner.
2730 [Ben Laurie (CHATS)]
2732 *) Add CRYPTO_realloc_clean() to avoid information leakage when
2733 resizing buffers containing secrets, and use where appropriate.
2734 [Ben Laurie (CHATS)]
2736 *) Add BIO_indent() to avoid much slightly worrying code to do
2738 [Ben Laurie (CHATS)]
2740 *) Convert sprintf()/BIO_puts() to BIO_printf().
2741 [Ben Laurie (CHATS)]
2743 *) buffer_gets() could terminate with the buffer only half
2745 [Ben Laurie (CHATS)]
2747 *) Add assertions to prevent user-supplied crypto functions from
2748 overflowing internal buffers by having large block sizes, etc.
2749 [Ben Laurie (CHATS)]
2751 *) New OPENSSL_assert() macro (similar to assert(), but enabled
2753 [Ben Laurie (CHATS)]
2755 *) Eliminate unused copy of key in RC4.
2756 [Ben Laurie (CHATS)]
2758 *) Eliminate unused and incorrectly sized buffers for IV in pem.h.
2759 [Ben Laurie (CHATS)]
2761 *) Fix off-by-one error in EGD path.
2762 [Ben Laurie (CHATS)]
2764 *) If RANDFILE path is too long, ignore instead of truncating.
2765 [Ben Laurie (CHATS)]
2767 *) Eliminate unused and incorrectly sized X.509 structure
2769 [Ben Laurie (CHATS)]
2771 *) Eliminate unused and dangerous function knumber().
2772 [Ben Laurie (CHATS)]
2774 *) Eliminate unused and dangerous structure, KSSL_ERR.
2775 [Ben Laurie (CHATS)]
2777 *) Protect against overlong session ID context length in an encoded
2778 session object. Since these are local, this does not appear to be
2780 [Ben Laurie (CHATS)]
2782 *) Change from security patch (see 0.9.6e below) that did not affect
2783 the 0.9.6 release series:
2785 Remote buffer overflow in SSL3 protocol - an attacker could
2786 supply an oversized master key in Kerberos-enabled versions.
2788 [Ben Laurie (CHATS)]
2790 *) Change the SSL kerb5 codes to match RFC 2712.
2793 *) Make -nameopt work fully for req and add -reqopt switch.
2794 [Michael Bell <michael.bell@rz.hu-berlin.de>, Steve Henson]
2796 *) The "block size" for block ciphers in CFB and OFB mode should be 1.
2797 [Steve Henson, reported by Yngve Nysaeter Pettersen <yngve@opera.com>]
2799 *) Make sure tests can be performed even if the corresponding algorithms
2800 have been removed entirely. This was also the last step to make
2801 OpenSSL compilable with DJGPP under all reasonable conditions.
2802 [Richard Levitte, Doug Kaufman <dkaufman@rahul.net>]
2804 *) Add cipher selection rules COMPLEMENTOFALL and COMPLEMENTOFDEFAULT
2805 to allow version independent disabling of normally unselected ciphers,
2806 which may be activated as a side-effect of selecting a single cipher.
2808 (E.g., cipher list string "RSA" enables ciphersuites that are left
2809 out of "ALL" because they do not provide symmetric encryption.
2810 "RSA:!COMPLEMEMENTOFALL" avoids these unsafe ciphersuites.)
2811 [Lutz Jaenicke, Bodo Moeller]
2813 *) Add appropriate support for separate platform-dependent build
2814 directories. The recommended way to make a platform-dependent
2815 build directory is the following (tested on Linux), maybe with
2818 # Place yourself outside of the OpenSSL source tree. In
2819 # this example, the environment variable OPENSSL_SOURCE
2820 # is assumed to contain the absolute OpenSSL source directory.
2821 mkdir -p objtree/"`uname -s`-`uname -r`-`uname -m`"
2822 cd objtree/"`uname -s`-`uname -r`-`uname -m`"
2823 (cd $OPENSSL_SOURCE; find . -type f) | while read F; do
2824 mkdir -p `dirname $F`
2825 ln -s $OPENSSL_SOURCE/$F $F
2828 To be absolutely sure not to disturb the source tree, a "make clean"
2829 is a good thing. If it isn't successfull, don't worry about it,
2830 it probably means the source directory is very clean.
2833 *) Make sure any ENGINE control commands make local copies of string
2834 pointers passed to them whenever necessary. Otherwise it is possible
2835 the caller may have overwritten (or deallocated) the original string
2836 data when a later ENGINE operation tries to use the stored values.
2837 [Götz Babin-Ebell <babinebell@trustcenter.de>]
2839 *) Improve diagnostics in file reading and command-line digests.
2840 [Ben Laurie aided and abetted by Solar Designer <solar@openwall.com>]
2842 *) Add AES modes CFB and OFB to the object database. Correct an
2843 error in AES-CFB decryption.
2846 *) Remove most calls to EVP_CIPHER_CTX_cleanup() in evp_enc.c, this
2847 allows existing EVP_CIPHER_CTX structures to be reused after
2848 calling EVP_*Final(). This behaviour is used by encryption
2849 BIOs and some applications. This has the side effect that
2850 applications must explicitly clean up cipher contexts with
2851 EVP_CIPHER_CTX_cleanup() or they will leak memory.
2854 *) Check the values of dna and dnb in bn_mul_recursive before calling
2855 bn_mul_comba (a non zero value means the a or b arrays do not contain
2856 n2 elements) and fallback to bn_mul_normal if either is not zero.
2859 *) Fix escaping of non-ASCII characters when using the -subj option
2860 of the "openssl req" command line tool. (Robert Joop <joop@fokus.gmd.de>)
2863 *) Make object definitions compliant to LDAP (RFC2256): SN is the short
2864 form for "surname", serialNumber has no short form.
2865 Use "mail" as the short name for "rfc822Mailbox" according to RFC2798;
2866 therefore remove "mail" short name for "internet 7".
2867 The OID for unique identifiers in X509 certificates is
2868 x500UniqueIdentifier, not uniqueIdentifier.
2869 Some more OID additions. (Michael Bell <michael.bell@rz.hu-berlin.de>)
2872 *) Add an "init" command to the ENGINE config module and auto initialize
2873 ENGINEs. Without any "init" command the ENGINE will be initialized
2874 after all ctrl commands have been executed on it. If init=1 the
2875 ENGINE is initailized at that point (ctrls before that point are run
2876 on the uninitialized ENGINE and after on the initialized one). If
2877 init=0 then the ENGINE will not be iniatialized at all.
2880 *) Fix the 'app_verify_callback' interface so that the user-defined
2881 argument is actually passed to the callback: In the
2882 SSL_CTX_set_cert_verify_callback() prototype, the callback
2883 declaration has been changed from
2886 int (*cb)(X509_STORE_CTX *,void *);
2887 in ssl_verify_cert_chain (ssl/ssl_cert.c), the call
2888 i=s->ctx->app_verify_callback(&ctx)
2889 has been changed into
2890 i=s->ctx->app_verify_callback(&ctx, s->ctx->app_verify_arg).
2892 To update applications using SSL_CTX_set_cert_verify_callback(),
2893 a dummy argument can be added to their callback functions.
2894 [D. K. Smetters <smetters@parc.xerox.com>]
2896 *) Added the '4758cca' ENGINE to support IBM 4758 cards.
2897 [Maurice Gittens <maurice@gittens.nl>, touchups by Geoff Thorpe]
2899 *) Add and OPENSSL_LOAD_CONF define which will cause
2900 OpenSSL_add_all_algorithms() to load the openssl.cnf config file.
2901 This allows older applications to transparently support certain
2902 OpenSSL features: such as crypto acceleration and dynamic ENGINE loading.
2903 Two new functions OPENSSL_add_all_algorithms_noconf() which will never
2904 load the config file and OPENSSL_add_all_algorithms_conf() which will
2905 always load it have also been added.
2908 *) Add the OFB, CFB and CTR (all with 128 bit feedback) to AES.
2909 Adjust NIDs and EVP layer.
2910 [Stephen Sprunk <stephen@sprunk.org> and Richard Levitte]
2912 *) Config modules support in openssl utility.
2914 Most commands now load modules from the config file,
2915 though in a few (such as version) this isn't done
2916 because it couldn't be used for anything.
2918 In the case of ca and req the config file used is
2919 the same as the utility itself: that is the -config
2920 command line option can be used to specify an
2924 *) Move default behaviour from OPENSSL_config(). If appname is NULL
2925 use "openssl_conf" if filename is NULL use default openssl config file.
2928 *) Add an argument to OPENSSL_config() to allow the use of an alternative
2929 config section name. Add a new flag to tolerate a missing config file
2930 and move code to CONF_modules_load_file().
2933 *) Support for crypto accelerator cards from Accelerated Encryption
2934 Processing, www.aep.ie. (Use engine 'aep')
2935 The support was copied from 0.9.6c [engine] and adapted/corrected
2936 to work with the new engine framework.
2937 [AEP Inc. and Richard Levitte]
2939 *) Support for SureWare crypto accelerator cards from Baltimore
2940 Technologies. (Use engine 'sureware')
2941 The support was copied from 0.9.6c [engine] and adapted
2942 to work with the new engine framework.
2945 *) Have the CHIL engine fork-safe (as defined by nCipher) and actually
2946 make the newer ENGINE framework commands for the CHIL engine work.
2947 [Toomas Kiisk <vix@cyber.ee> and Richard Levitte]
2949 *) Make it possible to produce shared libraries on ReliantUNIX.
2950 [Robert Dahlem <Robert.Dahlem@ffm2.siemens.de> via Richard Levitte]
2952 *) Add the configuration target debug-linux-ppro.
2953 Make 'openssl rsa' use the general key loading routines
2954 implemented in apps.c, and make those routines able to
2955 handle the key format FORMAT_NETSCAPE and the variant
2957 [Toomas Kiisk <vix@cyber.ee> via Richard Levitte]
2959 *) Fix a crashbug and a logic bug in hwcrhk_load_pubkey().
2960 [Toomas Kiisk <vix@cyber.ee> via Richard Levitte]
2962 *) Add -keyform to rsautl, and document -engine.
2963 [Richard Levitte, inspired by Toomas Kiisk <vix@cyber.ee>]
2965 *) Change BIO_new_file (crypto/bio/bss_file.c) to use new
2966 BIO_R_NO_SUCH_FILE error code rather than the generic
2967 ERR_R_SYS_LIB error code if fopen() fails with ENOENT.
2970 *) Add new functions
2972 ERR_peek_last_error_line
2973 ERR_peek_last_error_line_data.
2974 These are similar to
2977 ERR_peek_error_line_data,
2978 but report on the latest error recorded rather than the first one
2979 still in the error queue.
2980 [Ben Laurie, Bodo Moeller]
2982 *) default_algorithms option in ENGINE config module. This allows things
2984 default_algorithms = ALL
2985 default_algorithms = RSA, DSA, RAND, CIPHERS, DIGESTS
2988 *) Prelminary ENGINE config module.
2991 *) New experimental application configuration code.
2994 *) Change the AES code to follow the same name structure as all other
2995 symmetric ciphers, and behave the same way. Move everything to
2996 the directory crypto/aes, thereby obsoleting crypto/rijndael.
2997 [Stephen Sprunk <stephen@sprunk.org> and Richard Levitte]
2999 *) SECURITY: remove unsafe setjmp/signal interaction from ui_openssl.c.
3000 [Ben Laurie and Theo de Raadt]
3002 *) Add option to output public keys in req command.
3003 [Massimiliano Pala madwolf@openca.org]
3005 *) Use wNAFs in EC_POINTs_mul() for improved efficiency
3006 (up to about 10% better than before for P-192 and P-224).
3009 *) New functions/macros
3011 SSL_CTX_set_msg_callback(ctx, cb)
3012 SSL_CTX_set_msg_callback_arg(ctx, arg)
3013 SSL_set_msg_callback(ssl, cb)
3014 SSL_set_msg_callback_arg(ssl, arg)
3016 to request calling a callback function
3018 void cb(int write_p, int version, int content_type,
3019 const void *buf, size_t len, SSL *ssl, void *arg)
3021 whenever a protocol message has been completely received
3022 (write_p == 0) or sent (write_p == 1). Here 'version' is the
3023 protocol version according to which the SSL library interprets
3024 the current protocol message (SSL2_VERSION, SSL3_VERSION, or
3025 TLS1_VERSION). 'content_type' is 0 in the case of SSL 2.0, or
3026 the content type as defined in the SSL 3.0/TLS 1.0 protocol
3027 specification (change_cipher_spec(20), alert(21), handshake(22)).
3028 'buf' and 'len' point to the actual message, 'ssl' to the
3029 SSL object, and 'arg' is the application-defined value set by
3030 SSL[_CTX]_set_msg_callback_arg().
3032 'openssl s_client' and 'openssl s_server' have new '-msg' options
3033 to enable a callback that displays all protocol messages.
3036 *) Change the shared library support so shared libraries are built as
3037 soon as the corresponding static library is finished, and thereby get
3038 openssl and the test programs linked against the shared library.
3039 This still only happens when the keyword "shard" has been given to
3040 the configuration scripts.
3042 NOTE: shared library support is still an experimental thing, and
3043 backward binary compatibility is still not guaranteed.
3044 ["Maciej W. Rozycki" <macro@ds2.pg.gda.pl> and Richard Levitte]
3046 *) Add support for Subject Information Access extension.
3047 [Peter Sylvester <Peter.Sylvester@EdelWeb.fr>]
3049 *) Make BUF_MEM_grow() behaviour more consistent: Initialise to zero
3050 additional bytes when new memory had to be allocated, not just
3051 when reusing an existing buffer.
3054 *) New command line and configuration option 'utf8' for the req command.
3055 This allows field values to be specified as UTF8 strings.
3058 *) Add -multi and -mr options to "openssl speed" - giving multiple parallel
3059 runs for the former and machine-readable output for the latter.
3062 *) Add '-noemailDN' option to 'openssl ca'. This prevents inclusion
3063 of the e-mail address in the DN (i.e., it will go into a certificate
3064 extension only). The new configuration file option 'email_in_dn = no'
3065 has the same effect.
3066 [Massimiliano Pala madwolf@openca.org]
3068 *) Change all functions with names starting with des_ to be starting
3069 with DES_ instead. Add wrappers that are compatible with libdes,
3070 but are named _ossl_old_des_*. Finally, add macros that map the
3071 des_* symbols to the corresponding _ossl_old_des_* if libdes
3072 compatibility is desired. If OpenSSL 0.9.6c compatibility is
3073 desired, the des_* symbols will be mapped to DES_*, with one
3076 Since we provide two compatibility mappings, the user needs to
3077 define the macro OPENSSL_DES_LIBDES_COMPATIBILITY if libdes
3078 compatibility is desired. The default (i.e., when that macro
3079 isn't defined) is OpenSSL 0.9.6c compatibility.
3081 There are also macros that enable and disable the support of old
3082 des functions altogether. Those are OPENSSL_ENABLE_OLD_DES_SUPPORT
3083 and OPENSSL_DISABLE_OLD_DES_SUPPORT. If none or both of those
3084 are defined, the default will apply: to support the old des routines.
3086 In either case, one must include openssl/des.h to get the correct
3087 definitions. Do not try to just include openssl/des_old.h, that
3090 NOTE: This is a major break of an old API into a new one. Software
3091 authors are encouraged to switch to the DES_ style functions. Some
3092 time in the future, des_old.h and the libdes compatibility functions
3093 will be disable (i.e. OPENSSL_DISABLE_OLD_DES_SUPPORT will be the
3094 default), and then completely removed.
3097 *) Test for certificates which contain unsupported critical extensions.
3098 If such a certificate is found during a verify operation it is
3099 rejected by default: this behaviour can be overridden by either
3100 handling the new error X509_V_ERR_UNHANDLED_CRITICAL_EXTENSION or
3101 by setting the verify flag X509_V_FLAG_IGNORE_CRITICAL. A new function
3102 X509_supported_extension() has also been added which returns 1 if a
3103 particular extension is supported.
3106 *) Modify the behaviour of EVP cipher functions in similar way to digests
3107 to retain compatibility with existing code.
3110 *) Modify the behaviour of EVP_DigestInit() and EVP_DigestFinal() to retain
3111 compatibility with existing code. In particular the 'ctx' parameter does
3112 not have to be to be initialized before the call to EVP_DigestInit() and
3113 it is tidied up after a call to EVP_DigestFinal(). New function
3114 EVP_DigestFinal_ex() which does not tidy up the ctx. Similarly function
3115 EVP_MD_CTX_copy() changed to not require the destination to be
3116 initialized valid and new function EVP_MD_CTX_copy_ex() added which
3117 requires the destination to be valid.
3119 Modify all the OpenSSL digest calls to use EVP_DigestInit_ex(),
3120 EVP_DigestFinal_ex() and EVP_MD_CTX_copy_ex().
3123 *) Change ssl3_get_message (ssl/s3_both.c) and the functions using it
3124 so that complete 'Handshake' protocol structures are kept in memory
3125 instead of overwriting 'msg_type' and 'length' with 'body' data.
3128 *) Add an implementation of SSL_add_dir_cert_subjects_to_stack for Win32.
3129 [Massimo Santin via Richard Levitte]
3131 *) Major restructuring to the underlying ENGINE code. This includes
3132 reduction of linker bloat, separation of pure "ENGINE" manipulation
3133 (initialisation, etc) from functionality dealing with implementations
3134 of specific crypto iterfaces. This change also introduces integrated
3135 support for symmetric ciphers and digest implementations - so ENGINEs
3136 can now accelerate these by providing EVP_CIPHER and EVP_MD
3137 implementations of their own. This is detailed in crypto/engine/README
3138 as it couldn't be adequately described here. However, there are a few
3139 API changes worth noting - some RSA, DSA, DH, and RAND functions that
3140 were changed in the original introduction of ENGINE code have now
3141 reverted back - the hooking from this code to ENGINE is now a good
3142 deal more passive and at run-time, operations deal directly with
3143 RSA_METHODs, DSA_METHODs (etc) as they did before, rather than
3144 dereferencing through an ENGINE pointer any more. Also, the ENGINE
3145 functions dealing with BN_MOD_EXP[_CRT] handlers have been removed -
3146 they were not being used by the framework as there is no concept of a
3147 BIGNUM_METHOD and they could not be generalised to the new
3148 'ENGINE_TABLE' mechanism that underlies the new code. Similarly,
3149 ENGINE_cpy() has been removed as it cannot be consistently defined in
3153 *) Change ASN1_GENERALIZEDTIME_check() to allow fractional seconds.
3156 *) Change mkdef.pl to sort symbols that get the same entry number,
3157 and make sure the automatically generated functions ERR_load_*
3158 become part of libeay.num as well.
3161 *) New function SSL_renegotiate_pending(). This returns true once
3162 renegotiation has been requested (either SSL_renegotiate() call
3163 or HelloRequest/ClientHello receveived from the peer) and becomes
3164 false once a handshake has been completed.
3165 (For servers, SSL_renegotiate() followed by SSL_do_handshake()
3166 sends a HelloRequest, but does not ensure that a handshake takes
3167 place. SSL_renegotiate_pending() is useful for checking if the
3168 client has followed the request.)
3171 *) New SSL option SSL_OP_NO_SESSION_RESUMPTION_ON_RENEGOTIATION.
3172 By default, clients may request session resumption even during
3173 renegotiation (if session ID contexts permit); with this option,
3174 session resumption is possible only in the first handshake.
3176 SSL_OP_ALL is now 0x00000FFFL instead of 0x000FFFFFL. This makes
3177 more bits available for options that should not be part of
3178 SSL_OP_ALL (such as SSL_OP_NO_SESSION_RESUMPTION_ON_RENEGOTIATION).
3181 *) Add some demos for certificate and certificate request creation.
3184 *) Make maximum certificate chain size accepted from the peer application
3185 settable (SSL*_get/set_max_cert_list()), as proposed by
3186 "Douglas E. Engert" <deengert@anl.gov>.
3189 *) Add support for shared libraries for Unixware-7
3190 (Boyd Lynn Gerber <gerberb@zenez.com>).
3193 *) Add a "destroy" handler to ENGINEs that allows structural cleanup to
3194 be done prior to destruction. Use this to unload error strings from
3195 ENGINEs that load their own error strings. NB: This adds two new API
3196 functions to "get" and "set" this destroy handler in an ENGINE.
3199 *) Alter all existing ENGINE implementations (except "openssl" and
3200 "openbsd") to dynamically instantiate their own error strings. This
3201 makes them more flexible to be built both as statically-linked ENGINEs
3202 and self-contained shared-libraries loadable via the "dynamic" ENGINE.
3203 Also, add stub code to each that makes building them as self-contained
3204 shared-libraries easier (see README.ENGINE).
3207 *) Add a "dynamic" ENGINE that provides a mechanism for binding ENGINE
3208 implementations into applications that are completely implemented in
3209 self-contained shared-libraries. The "dynamic" ENGINE exposes control
3210 commands that can be used to configure what shared-library to load and
3211 to control aspects of the way it is handled. Also, made an update to
3212 the README.ENGINE file that brings its information up-to-date and
3213 provides some information and instructions on the "dynamic" ENGINE
3214 (ie. how to use it, how to build "dynamic"-loadable ENGINEs, etc).
3217 *) Make it possible to unload ranges of ERR strings with a new
3218 "ERR_unload_strings" function.
3221 *) Add a copy() function to EVP_MD.
3224 *) Make EVP_MD routines take a context pointer instead of just the
3225 md_data void pointer.
3228 *) Add flags to EVP_MD and EVP_MD_CTX. EVP_MD_FLAG_ONESHOT indicates
3229 that the digest can only process a single chunk of data
3230 (typically because it is provided by a piece of
3231 hardware). EVP_MD_CTX_FLAG_ONESHOT indicates that the application
3232 is only going to provide a single chunk of data, and hence the
3233 framework needn't accumulate the data for oneshot drivers.
3236 *) As with "ERR", make it possible to replace the underlying "ex_data"
3237 functions. This change also alters the storage and management of global
3238 ex_data state - it's now all inside ex_data.c and all "class" code (eg.
3239 RSA, BIO, SSL_CTX, etc) no longer stores its own STACKS and per-class
3240 index counters. The API functions that use this state have been changed
3241 to take a "class_index" rather than pointers to the class's local STACK
3242 and counter, and there is now an API function to dynamically create new
3243 classes. This centralisation allows us to (a) plug a lot of the
3244 thread-safety problems that existed, and (b) makes it possible to clean
3245 up all allocated state using "CRYPTO_cleanup_all_ex_data()". W.r.t. (b)
3246 such data would previously have always leaked in application code and
3247 workarounds were in place to make the memory debugging turn a blind eye
3248 to it. Application code that doesn't use this new function will still
3249 leak as before, but their memory debugging output will announce it now
3250 rather than letting it slide.
3252 Besides the addition of CRYPTO_cleanup_all_ex_data(), another API change
3253 induced by the "ex_data" overhaul is that X509_STORE_CTX_init() now
3254 has a return value to indicate success or failure.
3257 *) Make it possible to replace the underlying "ERR" functions such that the
3258 global state (2 LHASH tables and 2 locks) is only used by the "default"
3259 implementation. This change also adds two functions to "get" and "set"
3260 the implementation prior to it being automatically set the first time
3261 any other ERR function takes place. Ie. an application can call "get",
3262 pass the return value to a module it has just loaded, and that module
3263 can call its own "set" function using that value. This means the
3264 module's "ERR" operations will use (and modify) the error state in the
3265 application and not in its own statically linked copy of OpenSSL code.
3268 *) Give DH, DSA, and RSA types their own "**_up_ref()" function to increment
3269 reference counts. This performs normal REF_PRINT/REF_CHECK macros on
3270 the operation, and provides a more encapsulated way for external code
3271 (crypto/evp/ and ssl/) to do this. Also changed the evp and ssl code
3272 to use these functions rather than manually incrementing the counts.
3274 Also rename "DSO_up()" function to more descriptive "DSO_up_ref()".
3277 *) Add EVP test program.
3280 *) Add symmetric cipher support to ENGINE. Expect the API to change!
3283 *) New CRL functions: X509_CRL_set_version(), X509_CRL_set_issuer_name()
3284 X509_CRL_set_lastUpdate(), X509_CRL_set_nextUpdate(), X509_CRL_sort(),
3285 X509_REVOKED_set_serialNumber(), and X509_REVOKED_set_revocationDate().
3286 These allow a CRL to be built without having to access X509_CRL fields
3287 directly. Modify 'ca' application to use new functions.
3290 *) Move SSL_OP_TLS_ROLLBACK_BUG out of the SSL_OP_ALL list of recommended
3291 bug workarounds. Rollback attack detection is a security feature.
3292 The problem will only arise on OpenSSL servers when TLSv1 is not
3293 available (sslv3_server_method() or SSL_OP_NO_TLSv1).
3294 Software authors not wanting to support TLSv1 will have special reasons
3295 for their choice and can explicitly enable this option.
3296 [Bodo Moeller, Lutz Jaenicke]
3298 *) Rationalise EVP so it can be extended: don't include a union of
3299 cipher/digest structures, add init/cleanup functions for EVP_MD_CTX
3300 (similar to those existing for EVP_CIPHER_CTX).
3305 EVP_MD_CTX_init(&md); /* new function call */
3306 EVP_DigestInit(&md, EVP_sha1());
3307 EVP_DigestUpdate(&md, in, len);
3308 EVP_DigestFinal(&md, out, NULL);
3309 EVP_MD_CTX_cleanup(&md); /* new function call */
3313 *) Make DES key schedule conform to the usual scheme, as well as
3314 correcting its structure. This means that calls to DES functions
3315 now have to pass a pointer to a des_key_schedule instead of a
3316 plain des_key_schedule (which was actually always a pointer
3319 des_key_schedule ks;
3321 des_set_key_checked(..., &ks);
3322 des_ncbc_encrypt(..., &ks, ...);
3324 (Note that a later change renames 'des_...' into 'DES_...'.)
3327 *) Initial reduction of linker bloat: the use of some functions, such as
3328 PEM causes large amounts of unused functions to be linked in due to
3329 poor organisation. For example pem_all.c contains every PEM function
3330 which has a knock on effect of linking in large amounts of (unused)
3331 ASN1 code. Grouping together similar functions and splitting unrelated
3332 functions prevents this.
3335 *) Cleanup of EVP macros.
3338 *) Change historical references to {NID,SN,LN}_des_ede and ede3 to add the
3339 correct _ecb suffix.
3342 *) Add initial OCSP responder support to ocsp application. The
3343 revocation information is handled using the text based index
3344 use by the ca application. The responder can either handle
3345 requests generated internally, supplied in files (for example
3346 via a CGI script) or using an internal minimal server.
3349 *) Add configuration choices to get zlib compression for TLS.
3352 *) Changes to Kerberos SSL for RFC 2712 compliance:
3353 1. Implemented real KerberosWrapper, instead of just using
3354 KRB5 AP_REQ message. [Thanks to Simon Wilkinson <sxw@sxw.org.uk>]
3355 2. Implemented optional authenticator field of KerberosWrapper.
3357 Added openssl-style ASN.1 macros for Kerberos ticket, ap_req,
3358 and authenticator structs; see crypto/krb5/.
3360 Generalized Kerberos calls to support multiple Kerberos libraries.
3361 [Vern Staats <staatsvr@asc.hpc.mil>,
3362 Jeffrey Altman <jaltman@columbia.edu>
3363 via Richard Levitte]
3365 *) Cause 'openssl speed' to use fully hard-coded DSA keys as it
3366 already does with RSA. testdsa.h now has 'priv_key/pub_key'
3367 values for each of the key sizes rather than having just
3368 parameters (and 'speed' generating keys each time).
3371 *) Speed up EVP routines.
3374 type 8 bytes 64 bytes 256 bytes 1024 bytes 8192 bytes
3375 des-cbc 4408.85k 5560.51k 5778.46k 5862.20k 5825.16k
3376 des-cbc 4389.55k 5571.17k 5792.23k 5846.91k 5832.11k
3377 des-cbc 4394.32k 5575.92k 5807.44k 5848.37k 5841.30k
3379 des-cbc 3482.66k 5069.49k 5496.39k 5614.16k 5639.28k
3380 des-cbc 3480.74k 5068.76k 5510.34k 5609.87k 5635.52k
3381 des-cbc 3483.72k 5067.62k 5504.60k 5708.01k 5724.80k
3384 des-cbc 4660.16k 5650.19k 5807.19k 5827.13k 5783.32k
3386 des-cbc 3624.96k 5258.21k 5530.91k 5624.30k 5628.26k
3389 *) Added the OS2-EMX target.
3390 ["Brian Havard" <brianh@kheldar.apana.org.au> and Richard Levitte]
3392 *) Rewrite apps to use NCONF routines instead of the old CONF. New functions
3393 to support NCONF routines in extension code. New function CONF_set_nconf()
3394 to allow functions which take an NCONF to also handle the old LHASH
3395 structure: this means that the old CONF compatible routines can be
3396 retained (in particular wrt extensions) without having to duplicate the
3397 code. New function X509V3_add_ext_nconf_sk to add extensions to a stack.
3400 *) Enhance the general user interface with mechanisms for inner control
3401 and with possibilities to have yes/no kind of prompts.
3404 *) Change all calls to low level digest routines in the library and
3405 applications to use EVP. Add missing calls to HMAC_cleanup() and
3406 don't assume HMAC_CTX can be copied using memcpy().
3407 [Verdon Walker <VWalker@novell.com>, Steve Henson]
3409 *) Add the possibility to control engines through control names but with
3410 arbitrary arguments instead of just a string.
3411 Change the key loaders to take a UI_METHOD instead of a callback
3412 function pointer. NOTE: this breaks binary compatibility with earlier
3413 versions of OpenSSL [engine].
3414 Adapt the nCipher code for these new conditions and add a card insertion
3418 *) Enhance the general user interface with mechanisms to better support
3419 dialog box interfaces, application-defined prompts, the possibility
3420 to use defaults (for example default passwords from somewhere else)
3421 and interrupts/cancellations.
3424 *) Tidy up PKCS#12 attribute handling. Add support for the CSP name
3425 attribute in PKCS#12 files, add new -CSP option to pkcs12 utility.
3428 *) Fix a memory leak in 'sk_dup()' in the case reallocation fails. (Also
3429 tidy up some unnecessarily weird code in 'sk_new()').
3430 [Geoff, reported by Diego Tartara <dtartara@novamens.com>]
3432 *) Change the key loading routines for ENGINEs to use the same kind
3433 callback (pem_password_cb) as all other routines that need this
3437 *) Increase ENTROPY_NEEDED to 32 bytes, as Rijndael can operate with
3438 256 bit (=32 byte) keys. Of course seeding with more entropy bytes
3439 than this minimum value is recommended.
3442 *) New random seeder for OpenVMS, using the system process statistics
3443 that are easily reachable.
3446 *) Windows apparently can't transparently handle global
3447 variables defined in DLLs. Initialisations such as:
3449 const ASN1_ITEM *it = &ASN1_INTEGER_it;
3451 wont compile. This is used by the any applications that need to
3452 declare their own ASN1 modules. This was fixed by adding the option
3453 EXPORT_VAR_AS_FN to all Win32 platforms, although this isn't strictly
3454 needed for static libraries under Win32.
3457 *) New functions X509_PURPOSE_set() and X509_TRUST_set() to handle
3458 setting of purpose and trust fields. New X509_STORE trust and
3459 purpose functions and tidy up setting in other SSL functions.
3462 *) Add copies of X509_STORE_CTX fields and callbacks to X509_STORE
3463 structure. These are inherited by X509_STORE_CTX when it is
3464 initialised. This allows various defaults to be set in the
3465 X509_STORE structure (such as flags for CRL checking and custom
3466 purpose or trust settings) for functions which only use X509_STORE_CTX
3467 internally such as S/MIME.
3469 Modify X509_STORE_CTX_purpose_inherit() so it only sets purposes and
3470 trust settings if they are not set in X509_STORE. This allows X509_STORE
3471 purposes and trust (in S/MIME for example) to override any set by default.
3473 Add command line options for CRL checking to smime, s_client and s_server
3477 *) Initial CRL based revocation checking. If the CRL checking flag(s)
3478 are set then the CRL is looked up in the X509_STORE structure and
3479 its validity and signature checked, then if the certificate is found
3480 in the CRL the verify fails with a revoked error.
3482 Various new CRL related callbacks added to X509_STORE_CTX structure.
3484 Command line options added to 'verify' application to support this.
3486 This needs some additional work, such as being able to handle multiple
3487 CRLs with different times, extension based lookup (rather than just
3488 by subject name) and ultimately more complete V2 CRL extension
3492 *) Add a general user interface API (crypto/ui/). This is designed
3493 to replace things like des_read_password and friends (backward
3494 compatibility functions using this new API are provided).
3495 The purpose is to remove prompting functions from the DES code
3496 section as well as provide for prompting through dialog boxes in
3497 a window system and the like.
3500 *) Add "ex_data" support to ENGINE so implementations can add state at a
3501 per-structure level rather than having to store it globally.
3504 *) Make it possible for ENGINE structures to be copied when retrieved by
3505 ENGINE_by_id() if the ENGINE specifies a new flag: ENGINE_FLAGS_BY_ID_COPY.
3506 This causes the "original" ENGINE structure to act like a template,
3507 analogous to the RSA vs. RSA_METHOD type of separation. Because of this
3508 operational state can be localised to each ENGINE structure, despite the
3509 fact they all share the same "methods". New ENGINE structures returned in
3510 this case have no functional references and the return value is the single
3511 structural reference. This matches the single structural reference returned
3512 by ENGINE_by_id() normally, when it is incremented on the pre-existing
3516 *) Fix ASN1 decoder when decoding type ANY and V_ASN1_OTHER: since this
3517 needs to match any other type at all we need to manually clear the
3521 *) Changes to the "openssl engine" utility to include;
3522 - verbosity levels ('-v', '-vv', and '-vvv') that provide information
3523 about an ENGINE's available control commands.
3524 - executing control commands from command line arguments using the
3525 '-pre' and '-post' switches. '-post' is only used if '-t' is
3526 specified and the ENGINE is successfully initialised. The syntax for
3527 the individual commands are colon-separated, for example;
3528 openssl engine chil -pre FORK_CHECK:0 -pre SO_PATH:/lib/test.so
3531 *) New dynamic control command support for ENGINEs. ENGINEs can now
3532 declare their own commands (numbers), names (strings), descriptions,
3533 and input types for run-time discovery by calling applications. A
3534 subset of these commands are implicitly classed as "executable"
3535 depending on their input type, and only these can be invoked through
3536 the new string-based API function ENGINE_ctrl_cmd_string(). (Eg. this
3537 can be based on user input, config files, etc). The distinction is
3538 that "executable" commands cannot return anything other than a boolean
3539 result and can only support numeric or string input, whereas some
3540 discoverable commands may only be for direct use through
3541 ENGINE_ctrl(), eg. supporting the exchange of binary data, function
3542 pointers, or other custom uses. The "executable" commands are to
3543 support parameterisations of ENGINE behaviour that can be
3544 unambiguously defined by ENGINEs and used consistently across any
3545 OpenSSL-based application. Commands have been added to all the
3546 existing hardware-supporting ENGINEs, noticeably "SO_PATH" to allow
3547 control over shared-library paths without source code alterations.
3550 *) Changed all ENGINE implementations to dynamically allocate their
3551 ENGINEs rather than declaring them statically. Apart from this being
3552 necessary with the removal of the ENGINE_FLAGS_MALLOCED distinction,
3553 this also allows the implementations to compile without using the
3554 internal engine_int.h header.
3557 *) Minor adjustment to "rand" code. RAND_get_rand_method() now returns a
3558 'const' value. Any code that should be able to modify a RAND_METHOD
3559 should already have non-const pointers to it (ie. they should only
3560 modify their own ones).
3563 *) Made a variety of little tweaks to the ENGINE code.
3564 - "atalla" and "ubsec" string definitions were moved from header files
3565 to C code. "nuron" string definitions were placed in variables
3566 rather than hard-coded - allowing parameterisation of these values
3567 later on via ctrl() commands.
3568 - Removed unused "#if 0"'d code.
3569 - Fixed engine list iteration code so it uses ENGINE_free() to release
3570 structural references.
3571 - Constified the RAND_METHOD element of ENGINE structures.
3572 - Constified various get/set functions as appropriate and added
3573 missing functions (including a catch-all ENGINE_cpy that duplicates
3574 all ENGINE values onto a new ENGINE except reference counts/state).
3575 - Removed NULL parameter checks in get/set functions. Setting a method
3576 or function to NULL is a way of cancelling out a previously set
3577 value. Passing a NULL ENGINE parameter is just plain stupid anyway
3578 and doesn't justify the extra error symbols and code.
3579 - Deprecate the ENGINE_FLAGS_MALLOCED define and move the area for
3580 flags from engine_int.h to engine.h.
3581 - Changed prototypes for ENGINE handler functions (init(), finish(),
3582 ctrl(), key-load functions, etc) to take an (ENGINE*) parameter.
3585 *) Implement binary inversion algorithm for BN_mod_inverse in addition
3586 to the algorithm using long division. The binary algorithm can be
3587 used only if the modulus is odd. On 32-bit systems, it is faster
3588 only for relatively small moduli (roughly 20-30% for 128-bit moduli,
3589 roughly 5-15% for 256-bit moduli), so we use it only for moduli
3590 up to 450 bits. In 64-bit environments, the binary algorithm
3591 appears to be advantageous for much longer moduli; here we use it
3592 for moduli up to 2048 bits.
3595 *) Rewrite CHOICE field setting in ASN1_item_ex_d2i(). The old code
3596 could not support the combine flag in choice fields.
3599 *) Add a 'copy_extensions' option to the 'ca' utility. This copies
3600 extensions from a certificate request to the certificate.
3603 *) Allow multiple 'certopt' and 'nameopt' options to be separated
3604 by commas. Add 'namopt' and 'certopt' options to the 'ca' config
3605 file: this allows the display of the certificate about to be
3606 signed to be customised, to allow certain fields to be included
3607 or excluded and extension details. The old system didn't display
3608 multicharacter strings properly, omitted fields not in the policy
3609 and couldn't display additional details such as extensions.
3612 *) Function EC_POINTs_mul for multiple scalar multiplication
3613 of an arbitrary number of elliptic curve points
3614 \sum scalars[i]*points[i],
3615 optionally including the generator defined for the EC_GROUP:
3616 scalar*generator + \sum scalars[i]*points[i].
3618 EC_POINT_mul is a simple wrapper function for the typical case
3619 that the point list has just one item (besides the optional
3623 *) First EC_METHODs for curves over GF(p):
3625 EC_GFp_simple_method() uses the basic BN_mod_mul and BN_mod_sqr
3626 operations and provides various method functions that can also
3627 operate with faster implementations of modular arithmetic.
3629 EC_GFp_mont_method() reuses most functions that are part of
3630 EC_GFp_simple_method, but uses Montgomery arithmetic.
3632 [Bodo Moeller; point addition and point doubling
3633 implementation directly derived from source code provided by
3634 Lenka Fibikova <fibikova@exp-math.uni-essen.de>]
3636 *) Framework for elliptic curves (crypto/ec/ec.h, crypto/ec/ec_lcl.h,
3637 crypto/ec/ec_lib.c):
3639 Curves are EC_GROUP objects (with an optional group generator)
3640 based on EC_METHODs that are built into the library.
3642 Points are EC_POINT objects based on EC_GROUP objects.
3644 Most of the framework would be able to handle curves over arbitrary
3645 finite fields, but as there are no obvious types for fields other
3646 than GF(p), some functions are limited to that for now.
3649 *) Add the -HTTP option to s_server. It is similar to -WWW, but requires
3650 that the file contains a complete HTTP response.
3653 *) Add the ec directory to mkdef.pl and mkfiles.pl. In mkdef.pl
3654 change the def and num file printf format specifier from "%-40sXXX"
3655 to "%-39s XXX". The latter will always guarantee a space after the
3656 field while the former will cause them to run together if the field
3657 is 40 of more characters long.
3660 *) Constify the cipher and digest 'method' functions and structures
3661 and modify related functions to take constant EVP_MD and EVP_CIPHER
3665 *) Hide BN_CTX structure details in bn_lcl.h instead of publishing them
3666 in <openssl/bn.h>. Also further increase BN_CTX_NUM to 32.
3669 *) Modify EVP_Digest*() routines so they now return values. Although the
3670 internal software routines can never fail additional hardware versions
3674 *) Clean up crypto/err/err.h and change some error codes to avoid conflicts:
3676 Previously ERR_R_FATAL was too small and coincided with ERR_LIB_PKCS7
3677 (= ERR_R_PKCS7_LIB); it is now 64 instead of 32.
3680 ERR_R_NESTED_ASN1_ERROR
3682 ERR_R_MISSING_ASN1_EOS
3683 were 4 .. 9, conflicting with
3684 ERR_LIB_RSA (= ERR_R_RSA_LIB)
3686 ERR_LIB_PEM (= ERR_R_PEM_LIB).
3687 They are now 58 .. 63 (i.e., just below ERR_R_FATAL).
3689 Add new error code 'ERR_R_INTERNAL_ERROR'.
3692 *) Don't overuse locks in crypto/err/err.c: For data retrieval, CRYPTO_r_lock
3696 *) New option '-subj arg' for 'openssl req' and 'openssl ca'. This
3697 sets the subject name for a new request or supersedes the
3698 subject name in a given request. Formats that can be parsed are
3699 'CN=Some Name, OU=myOU, C=IT'
3701 'CN=Some Name/OU=myOU/C=IT'.
3703 Add options '-batch' and '-verbose' to 'openssl req'.
3704 [Massimiliano Pala <madwolf@hackmasters.net>]
3706 *) Introduce the possibility to access global variables through
3707 functions on platform were that's the best way to handle exporting
3708 global variables in shared libraries. To enable this functionality,
3709 one must configure with "EXPORT_VAR_AS_FN" or defined the C macro
3710 "OPENSSL_EXPORT_VAR_AS_FUNCTION" in crypto/opensslconf.h (the latter
3711 is normally done by Configure or something similar).
3713 To implement a global variable, use the macro OPENSSL_IMPLEMENT_GLOBAL
3714 in the source file (foo.c) like this:
3716 OPENSSL_IMPLEMENT_GLOBAL(int,foo)=1;
3717 OPENSSL_IMPLEMENT_GLOBAL(double,bar);
3719 To declare a global variable, use the macros OPENSSL_DECLARE_GLOBAL
3720 and OPENSSL_GLOBAL_REF in the header file (foo.h) like this:
3722 OPENSSL_DECLARE_GLOBAL(int,foo);
3723 #define foo OPENSSL_GLOBAL_REF(foo)
3724 OPENSSL_DECLARE_GLOBAL(double,bar);
3725 #define bar OPENSSL_GLOBAL_REF(bar)
3727 The #defines are very important, and therefore so is including the
3728 header file everywhere where the defined globals are used.
3730 The macro OPENSSL_EXPORT_VAR_AS_FUNCTION also affects the definition
3731 of ASN.1 items, but that structure is a bit different.
3733 The largest change is in util/mkdef.pl which has been enhanced with
3734 better and easier to understand logic to choose which symbols should
3735 go into the Windows .def files as well as a number of fixes and code
3736 cleanup (among others, algorithm keywords are now sorted
3737 lexicographically to avoid constant rewrites).
3740 *) In BN_div() keep a copy of the sign of 'num' before writing the
3741 result to 'rm' because if rm==num the value will be overwritten
3742 and produce the wrong result if 'num' is negative: this caused
3743 problems with BN_mod() and BN_nnmod().
3746 *) Function OCSP_request_verify(). This checks the signature on an
3747 OCSP request and verifies the signer certificate. The signer
3748 certificate is just checked for a generic purpose and OCSP request
3752 *) Add OCSP_check_validity() function to check the validity of OCSP
3753 responses. OCSP responses are prepared in real time and may only
3754 be a few seconds old. Simply checking that the current time lies
3755 between thisUpdate and nextUpdate max reject otherwise valid responses
3756 caused by either OCSP responder or client clock inaccuracy. Instead
3757 we allow thisUpdate and nextUpdate to fall within a certain period of
3758 the current time. The age of the response can also optionally be
3759 checked. Two new options -validity_period and -status_age added to
3763 *) If signature or public key algorithm is unrecognized print out its
3764 OID rather that just UNKNOWN.
3767 *) Change OCSP_cert_to_id() to tolerate a NULL subject certificate and
3768 OCSP_cert_id_new() a NULL serialNumber. This allows a partial certificate
3769 ID to be generated from the issuer certificate alone which can then be
3770 passed to OCSP_id_issuer_cmp().
3773 *) New compilation option ASN1_ITEM_FUNCTIONS. This causes the new
3774 ASN1 modules to export functions returning ASN1_ITEM pointers
3775 instead of the ASN1_ITEM structures themselves. This adds several
3776 new macros which allow the underlying ASN1 function/structure to
3777 be accessed transparently. As a result code should not use ASN1_ITEM
3778 references directly (such as &X509_it) but instead use the relevant
3779 macros (such as ASN1_ITEM_rptr(X509)). This option is to allow
3780 use of the new ASN1 code on platforms where exporting structures
3781 is problematical (for example in shared libraries) but exporting
3782 functions returning pointers to structures is not.
3785 *) Add support for overriding the generation of SSL/TLS session IDs.
3786 These callbacks can be registered either in an SSL_CTX or per SSL.
3787 The purpose of this is to allow applications to control, if they wish,
3788 the arbitrary values chosen for use as session IDs, particularly as it
3789 can be useful for session caching in multiple-server environments. A
3790 command-line switch for testing this (and any client code that wishes
3791 to use such a feature) has been added to "s_server".
3792 [Geoff Thorpe, Lutz Jaenicke]
3794 *) Modify mkdef.pl to recognise and parse preprocessor conditionals
3795 of the form '#if defined(...) || defined(...) || ...' and
3796 '#if !defined(...) && !defined(...) && ...'. This also avoids
3797 the growing number of special cases it was previously handling.
3800 *) Make all configuration macros available for application by making
3801 sure they are available in opensslconf.h, by giving them names starting
3802 with "OPENSSL_" to avoid conflicts with other packages and by making
3803 sure e_os2.h will cover all platform-specific cases together with
3805 Additionally, it is now possible to define configuration/platform-
3806 specific names (called "system identities"). In the C code, these
3807 are prefixed with "OPENSSL_SYSNAME_". e_os2.h will create another
3808 macro with the name beginning with "OPENSSL_SYS_", which is determined
3809 from "OPENSSL_SYSNAME_*" or compiler-specific macros depending on
3813 *) New option -set_serial to 'req' and 'x509' this allows the serial
3814 number to use to be specified on the command line. Previously self
3815 signed certificates were hard coded with serial number 0 and the
3816 CA options of 'x509' had to use a serial number in a file which was
3820 *) New options to 'ca' utility to support V2 CRL entry extensions.
3821 Currently CRL reason, invalidity date and hold instruction are
3822 supported. Add new CRL extensions to V3 code and some new objects.
3825 *) New function EVP_CIPHER_CTX_set_padding() this is used to
3826 disable standard block padding (aka PKCS#5 padding) in the EVP
3827 API, which was previously mandatory. This means that the data is
3828 not padded in any way and so the total length much be a multiple
3829 of the block size, otherwise an error occurs.
3832 *) Initial (incomplete) OCSP SSL support.
3835 *) New function OCSP_parse_url(). This splits up a URL into its host,
3836 port and path components: primarily to parse OCSP URLs. New -url
3837 option to ocsp utility.
3840 *) New nonce behavior. The return value of OCSP_check_nonce() now
3841 reflects the various checks performed. Applications can decide
3842 whether to tolerate certain situations such as an absent nonce
3843 in a response when one was present in a request: the ocsp application
3844 just prints out a warning. New function OCSP_add1_basic_nonce()
3845 this is to allow responders to include a nonce in a response even if
3846 the request is nonce-less.
3849 *) Disable stdin buffering in load_cert (apps/apps.c) so that no certs are
3850 skipped when using openssl x509 multiple times on a single input file,
3851 e.g. "(openssl x509 -out cert1; openssl x509 -out cert2) <certs".
3854 *) Make ASN1_UTCTIME_set_string() and ASN1_GENERALIZEDTIME_set_string()
3855 set string type: to handle setting ASN1_TIME structures. Fix ca
3856 utility to correctly initialize revocation date of CRLs.
3859 *) New option SSL_OP_CIPHER_SERVER_PREFERENCE allows the server to override
3860 the clients preferred ciphersuites and rather use its own preferences.
3861 Should help to work around M$ SGC (Server Gated Cryptography) bug in
3862 Internet Explorer by ensuring unchanged hash method during stepup.
3863 (Also replaces the broken/deactivated SSL_OP_NON_EXPORT_FIRST option.)
3866 *) Make mkdef.pl recognise all DECLARE_ASN1 macros, change rijndael
3867 to aes and add a new 'exist' option to print out symbols that don't
3871 *) Additional options to ocsp utility to allow flags to be set and
3872 additional certificates supplied.
3875 *) Add the option -VAfile to 'openssl ocsp', so the user can give the
3876 OCSP client a number of certificate to only verify the response
3880 *) Update Rijndael code to version 3.0 and change EVP AES ciphers to
3881 handle the new API. Currently only ECB, CBC modes supported. Add new
3884 Add TLS AES ciphersuites as described in RFC3268, "Advanced
3885 Encryption Standard (AES) Ciphersuites for Transport Layer
3886 Security (TLS)". (In beta versions of OpenSSL 0.9.7, these were
3887 not enabled by default and were not part of the "ALL" ciphersuite
3888 alias because they were not yet official; they could be
3889 explicitly requested by specifying the "AESdraft" ciphersuite
3890 group alias. In the final release of OpenSSL 0.9.7, the group
3891 alias is called "AES" and is part of "ALL".)
3892 [Ben Laurie, Steve Henson, Bodo Moeller]
3894 *) New function OCSP_copy_nonce() to copy nonce value (if present) from
3895 request to response.
3898 *) Functions for OCSP responders. OCSP_request_onereq_count(),
3899 OCSP_request_onereq_get0(), OCSP_onereq_get0_id() and OCSP_id_get0_info()
3900 extract information from a certificate request. OCSP_response_create()
3901 creates a response and optionally adds a basic response structure.
3902 OCSP_basic_add1_status() adds a complete single response to a basic
3903 response and returns the OCSP_SINGLERESP structure just added (to allow
3904 extensions to be included for example). OCSP_basic_add1_cert() adds a
3905 certificate to a basic response and OCSP_basic_sign() signs a basic
3906 response with various flags. New helper functions ASN1_TIME_check()
3907 (checks validity of ASN1_TIME structure) and ASN1_TIME_to_generalizedtime()
3908 (converts ASN1_TIME to GeneralizedTime).
3911 *) Various new functions. EVP_Digest() combines EVP_Digest{Init,Update,Final}()
3912 in a single operation. X509_get0_pubkey_bitstr() extracts the public_key
3913 structure from a certificate. X509_pubkey_digest() digests the public_key
3914 contents: this is used in various key identifiers.
3917 *) Make sk_sort() tolerate a NULL argument.
3918 [Steve Henson reported by Massimiliano Pala <madwolf@comune.modena.it>]
3920 *) New OCSP verify flag OCSP_TRUSTOTHER. When set the "other" certificates
3921 passed by the function are trusted implicitly. If any of them signed the
3922 response then it is assumed to be valid and is not verified.
3925 *) In PKCS7_set_type() initialise content_type in PKCS7_ENC_CONTENT
3926 to data. This was previously part of the PKCS7 ASN1 code. This
3927 was causing problems with OpenSSL created PKCS#12 and PKCS#7 structures.
3928 [Steve Henson, reported by Kenneth R. Robinette
3929 <support@securenetterm.com>]
3931 *) Add CRYPTO_push_info() and CRYPTO_pop_info() calls to new ASN1
3932 routines: without these tracing memory leaks is very painful.
3933 Fix leaks in PKCS12 and PKCS7 routines.
3936 *) Make X509_time_adj() cope with the new behaviour of ASN1_TIME_new().
3937 Previously it initialised the 'type' argument to V_ASN1_UTCTIME which
3938 effectively meant GeneralizedTime would never be used. Now it
3939 is initialised to -1 but X509_time_adj() now has to check the value
3940 and use ASN1_TIME_set() if the value is not V_ASN1_UTCTIME or
3941 V_ASN1_GENERALIZEDTIME, without this it always uses GeneralizedTime.
3942 [Steve Henson, reported by Kenneth R. Robinette
3943 <support@securenetterm.com>]
3945 *) Fixes to BN_to_ASN1_INTEGER when bn is zero. This would previously
3946 result in a zero length in the ASN1_INTEGER structure which was
3947 not consistent with the structure when d2i_ASN1_INTEGER() was used
3948 and would cause ASN1_INTEGER_cmp() to fail. Enhance s2i_ASN1_INTEGER()
3949 to cope with hex and negative integers. Fix bug in i2a_ASN1_INTEGER()
3950 where it did not print out a minus for negative ASN1_INTEGER.
3953 *) Add summary printout to ocsp utility. The various functions which
3954 convert status values to strings have been renamed to:
3955 OCSP_response_status_str(), OCSP_cert_status_str() and
3956 OCSP_crl_reason_str() and are no longer static. New options
3957 to verify nonce values and to disable verification. OCSP response
3958 printout format cleaned up.
3961 *) Add additional OCSP certificate checks. These are those specified
3962 in RFC2560. This consists of two separate checks: the CA of the
3963 certificate being checked must either be the OCSP signer certificate
3964 or the issuer of the OCSP signer certificate. In the latter case the
3965 OCSP signer certificate must contain the OCSP signing extended key
3966 usage. This check is performed by attempting to match the OCSP
3967 signer or the OCSP signer CA to the issuerNameHash and issuerKeyHash
3968 in the OCSP_CERTID structures of the response.
3971 *) Initial OCSP certificate verification added to OCSP_basic_verify()
3972 and related routines. This uses the standard OpenSSL certificate
3973 verify routines to perform initial checks (just CA validity) and
3974 to obtain the certificate chain. Then additional checks will be
3975 performed on the chain. Currently the root CA is checked to see
3976 if it is explicitly trusted for OCSP signing. This is used to set
3977 a root CA as a global signing root: that is any certificate that
3978 chains to that CA is an acceptable OCSP signing certificate.
3981 *) New '-extfile ...' option to 'openssl ca' for reading X.509v3
3982 extensions from a separate configuration file.
3983 As when reading extensions from the main configuration file,
3984 the '-extensions ...' option may be used for specifying the
3986 [Massimiliano Pala <madwolf@comune.modena.it>]
3988 *) New OCSP utility. Allows OCSP requests to be generated or
3989 read. The request can be sent to a responder and the output
3990 parsed, outputed or printed in text form. Not complete yet:
3991 still needs to check the OCSP response validity.
3994 *) New subcommands for 'openssl ca':
3995 'openssl ca -status <serial>' prints the status of the cert with
3996 the given serial number (according to the index file).
3997 'openssl ca -updatedb' updates the expiry status of certificates
3999 [Massimiliano Pala <madwolf@comune.modena.it>]
4001 *) New '-newreq-nodes' command option to CA.pl. This is like
4002 '-newreq', but calls 'openssl req' with the '-nodes' option
4003 so that the resulting key is not encrypted.
4004 [Damien Miller <djm@mindrot.org>]
4006 *) New configuration for the GNU Hurd.
4007 [Jonathan Bartlett <johnnyb@wolfram.com> via Richard Levitte]
4009 *) Initial code to implement OCSP basic response verify. This
4010 is currently incomplete. Currently just finds the signer's
4011 certificate and verifies the signature on the response.
4014 *) New SSLeay_version code SSLEAY_DIR to determine the compiled-in
4015 value of OPENSSLDIR. This is available via the new '-d' option
4016 to 'openssl version', and is also included in 'openssl version -a'.
4019 *) Allowing defining memory allocation callbacks that will be given
4020 file name and line number information in additional arguments
4021 (a const char* and an int). The basic functionality remains, as
4022 well as the original possibility to just replace malloc(),
4023 realloc() and free() by functions that do not know about these
4024 additional arguments. To register and find out the current
4025 settings for extended allocation functions, the following
4026 functions are provided:
4028 CRYPTO_set_mem_ex_functions
4029 CRYPTO_set_locked_mem_ex_functions
4030 CRYPTO_get_mem_ex_functions
4031 CRYPTO_get_locked_mem_ex_functions
4033 These work the same way as CRYPTO_set_mem_functions and friends.
4034 CRYPTO_get_[locked_]mem_functions now writes 0 where such an
4035 extended allocation function is enabled.
4036 Similarly, CRYPTO_get_[locked_]mem_ex_functions writes 0 where
4037 a conventional allocation function is enabled.
4038 [Richard Levitte, Bodo Moeller]
4040 *) Finish off removing the remaining LHASH function pointer casts.
4041 There should no longer be any prototype-casting required when using
4042 the LHASH abstraction, and any casts that remain are "bugs". See
4043 the callback types and macros at the head of lhash.h for details
4044 (and "OBJ_cleanup" in crypto/objects/obj_dat.c as an example).
4047 *) Add automatic query of EGD sockets in RAND_poll() for the unix variant.
4048 If /dev/[u]random devices are not available or do not return enough
4049 entropy, EGD style sockets (served by EGD or PRNGD) will automatically
4051 The locations /var/run/egd-pool, /dev/egd-pool, /etc/egd-pool, and
4052 /etc/entropy will be queried once each in this sequence, quering stops
4053 when enough entropy was collected without querying more sockets.
4056 *) Change the Unix RAND_poll() variant to be able to poll several
4057 random devices, as specified by DEVRANDOM, until a sufficient amount
4058 of data has been collected. We spend at most 10 ms on each file
4059 (select timeout) and read in non-blocking mode. DEVRANDOM now
4060 defaults to the list "/dev/urandom", "/dev/random", "/dev/srandom"
4061 (previously it was just the string "/dev/urandom"), so on typical
4062 platforms the 10 ms delay will never occur.
4063 Also separate out the Unix variant to its own file, rand_unix.c.
4064 For VMS, there's a currently-empty rand_vms.c.
4067 *) Move OCSP client related routines to ocsp_cl.c. These
4068 provide utility functions which an application needing
4069 to issue a request to an OCSP responder and analyse the
4070 response will typically need: as opposed to those which an
4071 OCSP responder itself would need which will be added later.
4073 OCSP_request_sign() signs an OCSP request with an API similar
4074 to PKCS7_sign(). OCSP_response_status() returns status of OCSP
4075 response. OCSP_response_get1_basic() extracts basic response
4076 from response. OCSP_resp_find_status(): finds and extracts status
4077 information from an OCSP_CERTID structure (which will be created
4078 when the request structure is built). These are built from lower
4079 level functions which work on OCSP_SINGLERESP structures but
4080 wont normally be used unless the application wishes to examine
4081 extensions in the OCSP response for example.
4083 Replace nonce routines with a pair of functions.
4084 OCSP_request_add1_nonce() adds a nonce value and optionally
4085 generates a random value. OCSP_check_nonce() checks the
4086 validity of the nonce in an OCSP response.
4089 *) Change function OCSP_request_add() to OCSP_request_add0_id().
4090 This doesn't copy the supplied OCSP_CERTID and avoids the
4091 need to free up the newly created id. Change return type
4092 to OCSP_ONEREQ to return the internal OCSP_ONEREQ structure.
4093 This can then be used to add extensions to the request.
4094 Deleted OCSP_request_new(), since most of its functionality
4095 is now in OCSP_REQUEST_new() (and the case insensitive name
4096 clash) apart from the ability to set the request name which
4097 will be added elsewhere.
4100 *) Update OCSP API. Remove obsolete extensions argument from
4101 various functions. Extensions are now handled using the new
4102 OCSP extension code. New simple OCSP HTTP function which
4103 can be used to send requests and parse the response.
4106 *) Fix the PKCS#7 (S/MIME) code to work with new ASN1. Two new
4107 ASN1_ITEM structures help with sign and verify. PKCS7_ATTR_SIGN
4108 uses the special reorder version of SET OF to sort the attributes
4109 and reorder them to match the encoded order. This resolves a long
4110 standing problem: a verify on a PKCS7 structure just after signing
4111 it used to fail because the attribute order did not match the
4112 encoded order. PKCS7_ATTR_VERIFY does not reorder the attributes:
4113 it uses the received order. This is necessary to tolerate some broken
4114 software that does not order SET OF. This is handled by encoding
4115 as a SEQUENCE OF but using implicit tagging (with UNIVERSAL class)
4116 to produce the required SET OF.
4119 *) Have mk1mf.pl generate the macros OPENSSL_BUILD_SHLIBCRYPTO and
4120 OPENSSL_BUILD_SHLIBSSL and use them appropriately in the header
4121 files to get correct declarations of the ASN.1 item variables.
4124 *) Rewrite of PKCS#12 code to use new ASN1 functionality. Replace many
4125 PKCS#12 macros with real functions. Fix two unrelated ASN1 bugs:
4126 asn1_check_tlen() would sometimes attempt to use 'ctx' when it was
4127 NULL and ASN1_TYPE was not dereferenced properly in asn1_ex_c2i().
4128 New ASN1 macro: DECLARE_ASN1_ITEM() which just declares the relevant
4129 ASN1_ITEM and no wrapper functions.
4132 *) New functions or ASN1_item_d2i_fp() and ASN1_item_d2i_bio(). These
4133 replace the old function pointer based I/O routines. Change most of
4134 the *_d2i_bio() and *_d2i_fp() functions to use these.
4137 *) Enhance mkdef.pl to be more accepting about spacing in C preprocessor
4138 lines, recognice more "algorithms" that can be deselected, and make
4139 it complain about algorithm deselection that isn't recognised.
4142 *) New ASN1 functions to handle dup, sign, verify, digest, pack and
4143 unpack operations in terms of ASN1_ITEM. Modify existing wrappers
4144 to use new functions. Add NO_ASN1_OLD which can be set to remove
4145 some old style ASN1 functions: this can be used to determine if old
4146 code will still work when these eventually go away.
4149 *) New extension functions for OCSP structures, these follow the
4150 same conventions as certificates and CRLs.
4153 *) New function X509V3_add1_i2d(). This automatically encodes and
4154 adds an extension. Its behaviour can be customised with various
4155 flags to append, replace or delete. Various wrappers added for
4156 certifcates and CRLs.
4159 *) Fix to avoid calling the underlying ASN1 print routine when
4160 an extension cannot be parsed. Correct a typo in the
4161 OCSP_SERVICELOC extension. Tidy up print OCSP format.
4164 *) Make mkdef.pl parse some of the ASN1 macros and add apropriate
4165 entries for variables.
4168 *) Add functionality to apps/openssl.c for detecting locking
4169 problems: As the program is single-threaded, all we have
4170 to do is register a locking callback using an array for
4171 storing which locks are currently held by the program.
4174 *) Use a lock around the call to CRYPTO_get_ex_new_index() in
4175 SSL_get_ex_data_X509_STORE_idx(), which is used in
4176 ssl_verify_cert_chain() and thus can be called at any time
4177 during TLS/SSL handshakes so that thread-safety is essential.
4178 Unfortunately, the ex_data design is not at all suited
4179 for multi-threaded use, so it probably should be abolished.
4182 *) Added Broadcom "ubsec" ENGINE to OpenSSL.
4183 [Broadcom, tweaked and integrated by Geoff Thorpe]
4185 *) Move common extension printing code to new function
4186 X509V3_print_extensions(). Reorganise OCSP print routines and
4187 implement some needed OCSP ASN1 functions. Add OCSP extensions.
4190 *) New function X509_signature_print() to remove duplication in some
4194 *) Add a special meaning when SET OF and SEQUENCE OF flags are both
4195 set (this was treated exactly the same as SET OF previously). This
4196 is used to reorder the STACK representing the structure to match the
4197 encoding. This will be used to get round a problem where a PKCS7
4198 structure which was signed could not be verified because the STACK
4199 order did not reflect the encoded order.
4202 *) Reimplement the OCSP ASN1 module using the new code.
4205 *) Update the X509V3 code to permit the use of an ASN1_ITEM structure
4206 for its ASN1 operations. The old style function pointers still exist
4207 for now but they will eventually go away.
4210 *) Merge in replacement ASN1 code from the ASN1 branch. This almost
4211 completely replaces the old ASN1 functionality with a table driven
4212 encoder and decoder which interprets an ASN1_ITEM structure describing
4213 the ASN1 module. Compatibility with the existing ASN1 API (i2d,d2i) is
4214 largely maintained. Almost all of the old asn1_mac.h macro based ASN1
4215 has also been converted to the new form.
4218 *) Change BN_mod_exp_recp so that negative moduli are tolerated
4219 (the sign is ignored). Similarly, ignore the sign in BN_MONT_CTX_set
4220 so that BN_mod_exp_mont and BN_mod_exp_mont_word work
4221 for negative moduli.
4224 *) Fix BN_uadd and BN_usub: Always return non-negative results instead
4225 of not touching the result's sign bit.
4228 *) BN_div bugfix: If the result is 0, the sign (res->neg) must not be
4232 *) Changed the LHASH code to use prototypes for callbacks, and created
4233 macros to declare and implement thin (optionally static) functions
4234 that provide type-safety and avoid function pointer casting for the
4235 type-specific callbacks.
4238 *) Added Kerberos Cipher Suites to be used with TLS, as written in
4240 [Veers Staats <staatsvr@asc.hpc.mil>,
4241 Jeffrey Altman <jaltman@columbia.edu>, via Richard Levitte]
4243 *) Reformat the FAQ so the different questions and answers can be divided
4244 in sections depending on the subject.
4247 *) Have the zlib compression code load ZLIB.DLL dynamically under
4251 *) New function BN_mod_sqrt for computing square roots modulo a prime
4252 (using the probabilistic Tonelli-Shanks algorithm unless
4253 p == 3 (mod 4) or p == 5 (mod 8), which are cases that can
4254 be handled deterministically).
4255 [Lenka Fibikova <fibikova@exp-math.uni-essen.de>, Bodo Moeller]
4257 *) Make BN_mod_inverse faster by explicitly handling small quotients
4258 in the Euclid loop. (Speed gain about 20% for small moduli [256 or
4259 512 bits], about 30% for larger ones [1024 or 2048 bits].)
4262 *) New function BN_kronecker.
4265 *) Fix BN_gcd so that it works on negative inputs; the result is
4266 positive unless both parameters are zero.
4267 Previously something reasonably close to an infinite loop was
4268 possible because numbers could be growing instead of shrinking
4269 in the implementation of Euclid's algorithm.
4272 *) Fix BN_is_word() and BN_is_one() macros to take into account the
4273 sign of the number in question.
4275 Fix BN_is_word(a,w) to work correctly for w == 0.
4277 The old BN_is_word(a,w) macro is now called BN_abs_is_word(a,w)
4278 because its test if the absolute value of 'a' equals 'w'.
4279 Note that BN_abs_is_word does *not* handle w == 0 reliably;
4280 it exists mostly for use in the implementations of BN_is_zero(),
4281 BN_is_one(), and BN_is_word().
4284 *) New function BN_swap.
4287 *) Use BN_nnmod instead of BN_mod in crypto/bn/bn_exp.c so that
4288 the exponentiation functions are more likely to produce reasonable
4289 results on negative inputs.
4292 *) Change BN_mod_mul so that the result is always non-negative.
4293 Previously, it could be negative if one of the factors was negative;
4294 I don't think anyone really wanted that behaviour.
4297 *) Move BN_mod_... functions into new file crypto/bn/bn_mod.c
4298 (except for exponentiation, which stays in crypto/bn/bn_exp.c,
4299 and BN_mod_mul_reciprocal, which stays in crypto/bn/bn_recp.c)
4300 and add new functions:
4309 BN_mod_lshift1_quick
4313 These functions always generate non-negative results.
4315 BN_nnmod otherwise is like BN_mod (if BN_mod computes a remainder r
4316 such that |m| < r < 0, BN_nnmod will output rem + |m| instead).
4318 BN_mod_XXX_quick(r, a, [b,] m) generates the same result as
4319 BN_mod_XXX(r, a, [b,] m, ctx), but requires that a [and b]
4320 be reduced modulo m.
4321 [Lenka Fibikova <fibikova@exp-math.uni-essen.de>, Bodo Moeller]
4324 The following entry accidentily appeared in the CHANGES file
4325 distributed with OpenSSL 0.9.7. The modifications described in
4326 it do *not* apply to OpenSSL 0.9.7.
4328 *) Remove a few calls to bn_wexpand() in BN_sqr() (the one in there
4329 was actually never needed) and in BN_mul(). The removal in BN_mul()
4330 required a small change in bn_mul_part_recursive() and the addition
4331 of the functions bn_cmp_part_words(), bn_sub_part_words() and
4332 bn_add_part_words(), which do the same thing as bn_cmp_words(),
4333 bn_sub_words() and bn_add_words() except they take arrays with
4338 *) In 'openssl passwd', verify passwords read from the terminal
4339 unless the '-salt' option is used (which usually means that
4340 verification would just waste user's time since the resulting
4341 hash is going to be compared with some given password hash)
4342 or the new '-noverify' option is used.
4344 This is an incompatible change, but it does not affect
4345 non-interactive use of 'openssl passwd' (passwords on the command
4346 line, '-stdin' option, '-in ...' option) and thus should not
4350 *) Remove all references to RSAref, since there's no more need for it.
4353 *) Make DSO load along a path given through an environment variable
4354 (SHLIB_PATH) with shl_load().
4357 *) Constify the ENGINE code as a result of BIGNUM constification.
4358 Also constify the RSA code and most things related to it. In a
4359 few places, most notable in the depth of the ASN.1 code, ugly
4360 casts back to non-const were required (to be solved at a later
4364 *) Make it so the openssl application has all engines loaded by default.
4367 *) Constify the BIGNUM routines a little more.
4370 *) Add the following functions:
4372 ENGINE_load_cswift()
4374 ENGINE_load_atalla()
4376 ENGINE_load_builtin_engines()
4378 That way, an application can itself choose if external engines that
4379 are built-in in OpenSSL shall ever be used or not. The benefit is
4380 that applications won't have to be linked with libdl or other dso
4381 libraries unless it's really needed.
4383 Changed 'openssl engine' to load all engines on demand.
4384 Changed the engine header files to avoid the duplication of some
4385 declarations (they differed!).
4388 *) 'openssl engine' can now list capabilities.
4391 *) Better error reporting in 'openssl engine'.
4394 *) Never call load_dh_param(NULL) in s_server.
4397 *) Add engine application. It can currently list engines by name and
4398 identity, and test if they are actually available.
4401 *) Improve RPM specification file by forcing symbolic linking and making
4402 sure the installed documentation is also owned by root.root.
4403 [Damien Miller <djm@mindrot.org>]
4405 *) Give the OpenSSL applications more possibilities to make use of
4406 keys (public as well as private) handled by engines.
4409 *) Add OCSP code that comes from CertCo.
4412 *) Add VMS support for the Rijndael code.
4415 *) Added untested support for Nuron crypto accelerator.
4418 *) Add support for external cryptographic devices. This code was
4419 previously distributed separately as the "engine" branch.
4420 [Geoff Thorpe, Richard Levitte]
4422 *) Rework the filename-translation in the DSO code. It is now possible to
4423 have far greater control over how a "name" is turned into a filename
4424 depending on the operating environment and any oddities about the
4425 different shared library filenames on each system.
4428 *) Support threads on FreeBSD-elf in Configure.
4431 *) Fix for SHA1 assembly problem with MASM: it produces
4432 warnings about corrupt line number information when assembling
4433 with debugging information. This is caused by the overlapping
4435 [Bernd Matthes <mainbug@celocom.de>, Steve Henson]
4438 NCONF_get_number() has no error checking at all. As a replacement,
4439 NCONF_get_number_e() is defined (_e for "error checking") and is
4440 promoted strongly. The old NCONF_get_number is kept around for
4441 binary backward compatibility.
4442 Make it possible for methods to load from something other than a BIO,
4443 by providing a function pointer that is given a name instead of a BIO.
4444 For example, this could be used to load configuration data from an
4448 *) Fix for non blocking accept BIOs. Added new I/O special reason
4449 BIO_RR_ACCEPT to cover this case. Previously use of accept BIOs
4450 with non blocking I/O was not possible because no retry code was
4451 implemented. Also added new SSL code SSL_WANT_ACCEPT to cover
4455 *) Added the beginnings of Rijndael support.
4458 *) Fix for bug in DirectoryString mask setting. Add support for
4459 X509_NAME_print_ex() in 'req' and X509_print_ex() function
4460 to allow certificate printing to more controllable, additional
4461 'certopt' option to 'x509' to allow new printing options to be
4465 *) Clean old EAY MD5 hack from e_os.h.
4468 Changes between 0.9.6l and 0.9.6m [17 Mar 2004]
4470 *) Fix null-pointer assignment in do_change_cipher_spec() revealed
4471 by using the Codenomicon TLS Test Tool (CVE-2004-0079)
4472 [Joe Orton, Steve Henson]
4474 Changes between 0.9.6k and 0.9.6l [04 Nov 2003]
4476 *) Fix additional bug revealed by the NISCC test suite:
4478 Stop bug triggering large recursion when presented with
4479 certain ASN.1 tags (CVE-2003-0851)
4482 Changes between 0.9.6j and 0.9.6k [30 Sep 2003]
4484 *) Fix various bugs revealed by running the NISCC test suite:
4486 Stop out of bounds reads in the ASN1 code when presented with
4487 invalid tags (CVE-2003-0543 and CVE-2003-0544).
4489 If verify callback ignores invalid public key errors don't try to check
4490 certificate signature with the NULL public key.
4494 *) In ssl3_accept() (ssl/s3_srvr.c) only accept a client certificate
4495 if the server requested one: as stated in TLS 1.0 and SSL 3.0
4499 *) In ssl3_get_client_hello() (ssl/s3_srvr.c), tolerate additional
4500 extra data after the compression methods not only for TLS 1.0
4501 but also for SSL 3.0 (as required by the specification).
4502 [Bodo Moeller; problem pointed out by Matthias Loepfe]
4504 *) Change X509_certificate_type() to mark the key as exported/exportable
4505 when it's 512 *bits* long, not 512 bytes.
4508 Changes between 0.9.6i and 0.9.6j [10 Apr 2003]
4510 *) Countermeasure against the Klima-Pokorny-Rosa extension of
4511 Bleichbacher's attack on PKCS #1 v1.5 padding: treat
4512 a protocol version number mismatch like a decryption error
4513 in ssl3_get_client_key_exchange (ssl/s3_srvr.c).
4516 *) Turn on RSA blinding by default in the default implementation
4517 to avoid a timing attack. Applications that don't want it can call
4518 RSA_blinding_off() or use the new flag RSA_FLAG_NO_BLINDING.
4519 They would be ill-advised to do so in most cases.
4520 [Ben Laurie, Steve Henson, Geoff Thorpe, Bodo Moeller]
4522 *) Change RSA blinding code so that it works when the PRNG is not
4523 seeded (in this case, the secret RSA exponent is abused as
4524 an unpredictable seed -- if it is not unpredictable, there
4525 is no point in blinding anyway). Make RSA blinding thread-safe
4526 by remembering the creator's thread ID in rsa->blinding and
4527 having all other threads use local one-time blinding factors
4528 (this requires more computation than sharing rsa->blinding, but
4529 avoids excessive locking; and if an RSA object is not shared
4530 between threads, blinding will still be very fast).
4533 Changes between 0.9.6h and 0.9.6i [19 Feb 2003]
4535 *) In ssl3_get_record (ssl/s3_pkt.c), minimize information leaked
4536 via timing by performing a MAC computation even if incorrrect
4537 block cipher padding has been found. This is a countermeasure
4538 against active attacks where the attacker has to distinguish
4539 between bad padding and a MAC verification error. (CVE-2003-0078)
4541 [Bodo Moeller; problem pointed out by Brice Canvel (EPFL),
4542 Alain Hiltgen (UBS), Serge Vaudenay (EPFL), and
4543 Martin Vuagnoux (EPFL, Ilion)]
4545 Changes between 0.9.6g and 0.9.6h [5 Dec 2002]
4547 *) New function OPENSSL_cleanse(), which is used to cleanse a section of
4548 memory from it's contents. This is done with a counter that will
4549 place alternating values in each byte. This can be used to solve
4550 two issues: 1) the removal of calls to memset() by highly optimizing
4551 compilers, and 2) cleansing with other values than 0, since those can
4552 be read through on certain media, for example a swap space on disk.
4555 *) Bugfix: client side session caching did not work with external caching,
4556 because the session->cipher setting was not restored when reloading
4557 from the external cache. This problem was masked, when
4558 SSL_OP_NETSCAPE_REUSE_CIPHER_CHANGE_BUG (part of SSL_OP_ALL) was set.
4559 (Found by Steve Haslam <steve@araqnid.ddts.net>.)
4562 *) Fix client_certificate (ssl/s2_clnt.c): The permissible total
4563 length of the REQUEST-CERTIFICATE message is 18 .. 34, not 17 .. 33.
4564 [Zeev Lieber <zeev-l@yahoo.com>]
4566 *) Undo an undocumented change introduced in 0.9.6e which caused
4567 repeated calls to OpenSSL_add_all_ciphers() and
4568 OpenSSL_add_all_digests() to be ignored, even after calling
4572 *) Change the default configuration reader to deal with last line not
4573 being properly terminated.
4576 *) Change X509_NAME_cmp() so it applies the special rules on handling
4577 DN values that are of type PrintableString, as well as RDNs of type
4578 emailAddress where the value has the type ia5String.
4579 [stefank@valicert.com via Richard Levitte]
4581 *) Add a SSL_SESS_CACHE_NO_INTERNAL_STORE flag to take over half
4582 the job SSL_SESS_CACHE_NO_INTERNAL_LOOKUP was inconsistently
4583 doing, define a new flag (SSL_SESS_CACHE_NO_INTERNAL) to be
4584 the bitwise-OR of the two for use by the majority of applications
4585 wanting this behaviour, and update the docs. The documented
4586 behaviour and actual behaviour were inconsistent and had been
4587 changing anyway, so this is more a bug-fix than a behavioural
4589 [Geoff Thorpe, diagnosed by Nadav Har'El]
4591 *) Don't impose a 16-byte length minimum on session IDs in ssl/s3_clnt.c
4592 (the SSL 3.0 and TLS 1.0 specifications allow any length up to 32 bytes).
4595 *) Fix initialization code race conditions in
4596 SSLv23_method(), SSLv23_client_method(), SSLv23_server_method(),
4597 SSLv2_method(), SSLv2_client_method(), SSLv2_server_method(),
4598 SSLv3_method(), SSLv3_client_method(), SSLv3_server_method(),
4599 TLSv1_method(), TLSv1_client_method(), TLSv1_server_method(),
4600 ssl2_get_cipher_by_char(),
4601 ssl3_get_cipher_by_char().
4602 [Patrick McCormick <patrick@tellme.com>, Bodo Moeller]
4604 *) Reorder cleanup sequence in SSL_CTX_free(): only remove the ex_data after
4605 the cached sessions are flushed, as the remove_cb() might use ex_data
4606 contents. Bug found by Sam Varshavchik <mrsam@courier-mta.com>
4607 (see [openssl.org #212]).
4608 [Geoff Thorpe, Lutz Jaenicke]
4610 *) Fix typo in OBJ_txt2obj which incorrectly passed the content
4611 length, instead of the encoding length to d2i_ASN1_OBJECT.
4614 Changes between 0.9.6f and 0.9.6g [9 Aug 2002]
4616 *) [In 0.9.6g-engine release:]
4617 Fix crypto/engine/vendor_defns/cswift.h for WIN32 (use '_stdcall').
4618 [Lynn Gazis <lgazis@rainbow.com>]
4620 Changes between 0.9.6e and 0.9.6f [8 Aug 2002]
4622 *) Fix ASN1 checks. Check for overflow by comparing with LONG_MAX
4623 and get fix the header length calculation.
4624 [Florian Weimer <Weimer@CERT.Uni-Stuttgart.DE>,
4625 Alon Kantor <alonk@checkpoint.com> (and others),
4628 *) Use proper error handling instead of 'assertions' in buffer
4629 overflow checks added in 0.9.6e. This prevents DoS (the
4630 assertions could call abort()).
4631 [Arne Ansper <arne@ats.cyber.ee>, Bodo Moeller]
4633 Changes between 0.9.6d and 0.9.6e [30 Jul 2002]
4635 *) Add various sanity checks to asn1_get_length() to reject
4636 the ASN1 length bytes if they exceed sizeof(long), will appear
4637 negative or the content length exceeds the length of the
4639 [Steve Henson, Adi Stav <stav@mercury.co.il>, James Yonan <jim@ntlp.com>]
4641 *) Fix cipher selection routines: ciphers without encryption had no flags
4642 for the cipher strength set and where therefore not handled correctly
4643 by the selection routines (PR #130).
4646 *) Fix EVP_dsa_sha macro.
4650 SSL_OP_DONT_INSERT_EMPTY_FRAGMENTS
4651 for disabling the SSL 3.0/TLS 1.0 CBC vulnerability countermeasure
4652 that was added in OpenSSL 0.9.6d.
4654 As the countermeasure turned out to be incompatible with some
4655 broken SSL implementations, the new option is part of SSL_OP_ALL.
4656 SSL_OP_ALL is usually employed when compatibility with weird SSL
4657 implementations is desired (e.g. '-bugs' option to 's_client' and
4658 's_server'), so the new option is automatically set in many
4662 *) Changes in security patch:
4664 Changes marked "(CHATS)" were sponsored by the Defense Advanced
4665 Research Projects Agency (DARPA) and Air Force Research Laboratory,
4666 Air Force Materiel Command, USAF, under agreement number
4669 *) Add various sanity checks to asn1_get_length() to reject
4670 the ASN1 length bytes if they exceed sizeof(long), will appear
4671 negative or the content length exceeds the length of the
4672 supplied buffer. (CVE-2002-0659)
4673 [Steve Henson, Adi Stav <stav@mercury.co.il>, James Yonan <jim@ntlp.com>]
4675 *) Assertions for various potential buffer overflows, not known to
4677 [Ben Laurie (CHATS)]
4679 *) Various temporary buffers to hold ASCII versions of integers were
4680 too small for 64 bit platforms. (CVE-2002-0655)
4681 [Matthew Byng-Maddick <mbm@aldigital.co.uk> and Ben Laurie (CHATS)>
4683 *) Remote buffer overflow in SSL3 protocol - an attacker could
4684 supply an oversized session ID to a client. (CVE-2002-0656)
4685 [Ben Laurie (CHATS)]
4687 *) Remote buffer overflow in SSL2 protocol - an attacker could
4688 supply an oversized client master key. (CVE-2002-0656)
4689 [Ben Laurie (CHATS)]
4691 Changes between 0.9.6c and 0.9.6d [9 May 2002]
4693 *) Fix crypto/asn1/a_sign.c so that 'parameters' is omitted (not
4694 encoded as NULL) with id-dsa-with-sha1.
4695 [Nils Larsch <nla@trustcenter.de>; problem pointed out by Bodo Moeller]
4697 *) Check various X509_...() return values in apps/req.c.
4698 [Nils Larsch <nla@trustcenter.de>]
4700 *) Fix BASE64 decode (EVP_DecodeUpdate) for data with CR/LF ended lines:
4701 an end-of-file condition would erronously be flagged, when the CRLF
4702 was just at the end of a processed block. The bug was discovered when
4703 processing data through a buffering memory BIO handing the data to a
4704 BASE64-decoding BIO. Bug fund and patch submitted by Pavel Tsekov
4705 <ptsekov@syntrex.com> and Nedelcho Stanev.
4708 *) Implement a countermeasure against a vulnerability recently found
4709 in CBC ciphersuites in SSL 3.0/TLS 1.0: Send an empty fragment
4710 before application data chunks to avoid the use of known IVs
4711 with data potentially chosen by the attacker.
4714 *) Fix length checks in ssl3_get_client_hello().
4717 *) TLS/SSL library bugfix: use s->s3->in_read_app_data differently
4718 to prevent ssl3_read_internal() from incorrectly assuming that
4719 ssl3_read_bytes() found application data while handshake
4720 processing was enabled when in fact s->s3->in_read_app_data was
4721 merely automatically cleared during the initial handshake.
4722 [Bodo Moeller; problem pointed out by Arne Ansper <arne@ats.cyber.ee>]
4724 *) Fix object definitions for Private and Enterprise: they were not
4725 recognized in their shortname (=lowercase) representation. Extend
4726 obj_dat.pl to issue an error when using undefined keywords instead
4727 of silently ignoring the problem (Svenning Sorensen
4728 <sss@sss.dnsalias.net>).
4731 *) Fix DH_generate_parameters() so that it works for 'non-standard'
4732 generators, i.e. generators other than 2 and 5. (Previously, the
4733 code did not properly initialise the 'add' and 'rem' values to
4734 BN_generate_prime().)
4736 In the new general case, we do not insist that 'generator' is
4737 actually a primitive root: This requirement is rather pointless;
4738 a generator of the order-q subgroup is just as good, if not
4742 *) Map new X509 verification errors to alerts. Discovered and submitted by
4743 Tom Wu <tom@arcot.com>.
4746 *) Fix ssl3_pending() (ssl/s3_lib.c) to prevent SSL_pending() from
4747 returning non-zero before the data has been completely received
4748 when using non-blocking I/O.
4749 [Bodo Moeller; problem pointed out by John Hughes]
4751 *) Some of the ciphers missed the strength entry (SSL_LOW etc).
4752 [Ben Laurie, Lutz Jaenicke]
4754 *) Fix bug in SSL_clear(): bad sessions were not removed (found by
4755 Yoram Zahavi <YoramZ@gilian.com>).
4758 *) Add information about CygWin 1.3 and on, and preserve proper
4759 configuration for the versions before that.
4760 [Corinna Vinschen <vinschen@redhat.com> and Richard Levitte]
4762 *) Make removal from session cache (SSL_CTX_remove_session()) more robust:
4763 check whether we deal with a copy of a session and do not delete from
4764 the cache in this case. Problem reported by "Izhar Shoshani Levi"
4765 <izhar@checkpoint.com>.
4768 *) Do not store session data into the internal session cache, if it
4769 is never intended to be looked up (SSL_SESS_CACHE_NO_INTERNAL_LOOKUP
4770 flag is set). Proposed by Aslam <aslam@funk.com>.
4773 *) Have ASN1_BIT_STRING_set_bit() really clear a bit when the requested
4777 *) [In 0.9.6d-engine release:]
4778 Fix a crashbug and a logic bug in hwcrhk_load_pubkey().
4779 [Toomas Kiisk <vix@cyber.ee> via Richard Levitte]
4781 *) Add the configuration target linux-s390x.
4782 [Neale Ferguson <Neale.Ferguson@SoftwareAG-USA.com> via Richard Levitte]
4784 *) The earlier bugfix for the SSL3_ST_SW_HELLO_REQ_C case of
4785 ssl3_accept (ssl/s3_srvr.c) incorrectly used a local flag
4786 variable as an indication that a ClientHello message has been
4787 received. As the flag value will be lost between multiple
4788 invocations of ssl3_accept when using non-blocking I/O, the
4789 function may not be aware that a handshake has actually taken
4790 place, thus preventing a new session from being added to the
4793 To avoid this problem, we now set s->new_session to 2 instead of
4794 using a local variable.
4795 [Lutz Jaenicke, Bodo Moeller]
4797 *) Bugfix: Return -1 from ssl3_get_server_done (ssl3/s3_clnt.c)
4798 if the SSL_R_LENGTH_MISMATCH error is detected.
4799 [Geoff Thorpe, Bodo Moeller]
4801 *) New 'shared_ldflag' column in Configure platform table.
4804 *) Fix EVP_CIPHER_mode macro.
4805 ["Dan S. Camper" <dan@bti.net>]
4807 *) Fix ssl3_read_bytes (ssl/s3_pkt.c): To ignore messages of unknown
4808 type, we must throw them away by setting rr->length to 0.
4809 [D P Chang <dpc@qualys.com>]
4811 Changes between 0.9.6b and 0.9.6c [21 dec 2001]
4813 *) Fix BN_rand_range bug pointed out by Dominikus Scherkl
4814 <Dominikus.Scherkl@biodata.com>. (The previous implementation
4815 worked incorrectly for those cases where range = 10..._2 and
4816 3*range is two bits longer than range.)
4819 *) Only add signing time to PKCS7 structures if it is not already
4823 *) Fix crypto/objects/objects.h: "ld-ce" should be "id-ce",
4824 OBJ_ld_ce should be OBJ_id_ce.
4825 Also some ip-pda OIDs in crypto/objects/objects.txt were
4826 incorrect (cf. RFC 3039).
4827 [Matt Cooper, Frederic Giudicelli, Bodo Moeller]
4829 *) Release CRYPTO_LOCK_DYNLOCK when CRYPTO_destroy_dynlockid()
4830 returns early because it has nothing to do.
4831 [Andy Schneider <andy.schneider@bjss.co.uk>]
4833 *) [In 0.9.6c-engine release:]
4834 Fix mutex callback return values in crypto/engine/hw_ncipher.c.
4835 [Andy Schneider <andy.schneider@bjss.co.uk>]
4837 *) [In 0.9.6c-engine release:]
4838 Add support for Cryptographic Appliance's keyserver technology.
4839 (Use engine 'keyclient')
4840 [Cryptographic Appliances and Geoff Thorpe]
4842 *) Add a configuration entry for OS/390 Unix. The C compiler 'c89'
4843 is called via tools/c89.sh because arguments have to be
4844 rearranged (all '-L' options must appear before the first object
4846 [Richard Shapiro <rshapiro@abinitio.com>]
4848 *) [In 0.9.6c-engine release:]
4849 Add support for Broadcom crypto accelerator cards, backported
4851 [Broadcom, Nalin Dahyabhai <nalin@redhat.com>, Mark Cox]
4853 *) [In 0.9.6c-engine release:]
4854 Add support for SureWare crypto accelerator cards from
4855 Baltimore Technologies. (Use engine 'sureware')
4856 [Baltimore Technologies and Mark Cox]
4858 *) [In 0.9.6c-engine release:]
4859 Add support for crypto accelerator cards from Accelerated
4860 Encryption Processing, www.aep.ie. (Use engine 'aep')
4861 [AEP Inc. and Mark Cox]
4863 *) Add a configuration entry for gcc on UnixWare.
4864 [Gary Benson <gbenson@redhat.com>]
4866 *) Change ssl/s2_clnt.c and ssl/s2_srvr.c so that received handshake
4867 messages are stored in a single piece (fixed-length part and
4868 variable-length part combined) and fix various bugs found on the way.
4871 *) Disable caching in BIO_gethostbyname(), directly use gethostbyname()
4872 instead. BIO_gethostbyname() does not know what timeouts are
4873 appropriate, so entries would stay in cache even when they have
4875 [Bodo Moeller; problem pointed out by Rich Salz <rsalz@zolera.com>
4877 *) Change ssl23_get_client_hello (ssl/s23_srvr.c) behaviour when
4878 faced with a pathologically small ClientHello fragment that does
4879 not contain client_version: Instead of aborting with an error,
4880 simply choose the highest available protocol version (i.e.,
4881 TLS 1.0 unless it is disabled). In practice, ClientHello
4882 messages are never sent like this, but this change gives us
4883 strictly correct behaviour at least for TLS.
4886 *) Fix SSL handshake functions and SSL_clear() such that SSL_clear()
4887 never resets s->method to s->ctx->method when called from within
4888 one of the SSL handshake functions.
4889 [Bodo Moeller; problem pointed out by Niko Baric]
4891 *) In ssl3_get_client_hello (ssl/s3_srvr.c), generate a fatal alert
4892 (sent using the client's version number) if client_version is
4893 smaller than the protocol version in use. Also change
4894 ssl23_get_client_hello (ssl/s23_srvr.c) to select TLS 1.0 if
4895 the client demanded SSL 3.0 but only TLS 1.0 is enabled; then
4896 the client will at least see that alert.
4899 *) Fix ssl3_get_message (ssl/s3_both.c) to handle message fragmentation
4903 *) Avoid infinite loop in ssl3_get_message (ssl/s3_both.c) if a
4904 client receives HelloRequest while in a handshake.
4905 [Bodo Moeller; bug noticed by Andy Schneider <andy.schneider@bjss.co.uk>]
4907 *) Bugfix in ssl3_accept (ssl/s3_srvr.c): Case SSL3_ST_SW_HELLO_REQ_C
4908 should end in 'break', not 'goto end' which circuments various
4909 cleanups done in state SSL_ST_OK. But session related stuff
4910 must be disabled for SSL_ST_OK in the case that we just sent a
4913 Also avoid some overhead by not calling ssl_init_wbio_buffer()
4914 before just sending a HelloRequest.
4915 [Bodo Moeller, Eric Rescorla <ekr@rtfm.com>]
4917 *) Fix ssl/s3_enc.c, ssl/t1_enc.c and ssl/s3_pkt.c so that we don't
4918 reveal whether illegal block cipher padding was found or a MAC
4919 verification error occured. (Neither SSLerr() codes nor alerts
4920 are directly visible to potential attackers, but the information
4921 may leak via logfiles.)
4923 Similar changes are not required for the SSL 2.0 implementation
4924 because the number of padding bytes is sent in clear for SSL 2.0,
4925 and the extra bytes are just ignored. However ssl/s2_pkt.c
4926 failed to verify that the purported number of padding bytes is in
4930 *) Add OpenUNIX-8 support including shared libraries
4931 (Boyd Lynn Gerber <gerberb@zenez.com>).
4934 *) Improve RSA_padding_check_PKCS1_OAEP() check again to avoid
4935 'wristwatch attack' using huge encoding parameters (cf.
4936 James H. Manger's CRYPTO 2001 paper). Note that the
4937 RSA_PKCS1_OAEP_PADDING case of RSA_private_decrypt() does not use
4938 encoding parameters and hence was not vulnerable.
4941 *) BN_sqr() bug fix.
4942 [Ulf Möller, reported by Jim Ellis <jim.ellis@cavium.com>]
4944 *) Rabin-Miller test analyses assume uniformly distributed witnesses,
4945 so use BN_pseudo_rand_range() instead of using BN_pseudo_rand()
4946 followed by modular reduction.
4947 [Bodo Moeller; pointed out by Adam Young <AYoung1@NCSUS.JNJ.COM>]
4949 *) Add BN_pseudo_rand_range() with obvious functionality: BN_rand_range()
4950 equivalent based on BN_pseudo_rand() instead of BN_rand().
4953 *) s3_srvr.c: allow sending of large client certificate lists (> 16 kB).
4954 This function was broken, as the check for a new client hello message
4955 to handle SGC did not allow these large messages.
4956 (Tracked down by "Douglas E. Engert" <deengert@anl.gov>.)
4959 *) Add alert descriptions for TLSv1 to SSL_alert_desc_string[_long]().
4962 *) Fix buggy behaviour of BIO_get_num_renegotiates() and BIO_ctrl()
4963 for BIO_C_GET_WRITE_BUF_SIZE ("Stephen Hinton" <shinton@netopia.com>).
4966 *) Rework the configuration and shared library support for Tru64 Unix.
4967 The configuration part makes use of modern compiler features and
4968 still retains old compiler behavior for those that run older versions
4969 of the OS. The shared library support part includes a variant that
4970 uses the RPATH feature, and is available through the special
4971 configuration target "alpha-cc-rpath", which will never be selected
4973 [Tim Mooney <mooney@dogbert.cc.ndsu.NoDak.edu> via Richard Levitte]
4975 *) In ssl3_get_key_exchange (ssl/s3_clnt.c), call ssl3_get_message()
4976 with the same message size as in ssl3_get_certificate_request().
4977 Otherwise, if no ServerKeyExchange message occurs, CertificateRequest
4978 messages might inadvertently be reject as too long.
4979 [Petr Lampa <lampa@fee.vutbr.cz>]
4981 *) Enhanced support for IA-64 Unix platforms (well, Linux and HP-UX).
4984 *) Modified SSL library such that the verify_callback that has been set
4985 specificly for an SSL object with SSL_set_verify() is actually being
4986 used. Before the change, a verify_callback set with this function was
4987 ignored and the verify_callback() set in the SSL_CTX at the time of
4988 the call was used. New function X509_STORE_CTX_set_verify_cb() introduced
4989 to allow the necessary settings.
4992 *) Initialize static variable in crypto/dsa/dsa_lib.c and crypto/dh/dh_lib.c
4993 explicitly to NULL, as at least on Solaris 8 this seems not always to be
4994 done automatically (in contradiction to the requirements of the C
4995 standard). This made problems when used from OpenSSH.
4998 *) In OpenSSL 0.9.6a and 0.9.6b, crypto/dh/dh_key.c ignored
4999 dh->length and always used
5001 BN_rand_range(priv_key, dh->p).
5003 BN_rand_range() is not necessary for Diffie-Hellman, and this
5004 specific range makes Diffie-Hellman unnecessarily inefficient if
5005 dh->length (recommended exponent length) is much smaller than the
5006 length of dh->p. We could use BN_rand_range() if the order of
5007 the subgroup was stored in the DH structure, but we only have
5012 BN_rand(priv_key, l, ...)
5014 where 'l' is dh->length if this is defined, or BN_num_bits(dh->p)-1
5020 RSA_eay_public_encrypt
5021 RSA_eay_private_decrypt
5022 RSA_eay_private_encrypt (signing)
5023 RSA_eay_public_decrypt (signature verification)
5025 (default implementations for RSA_public_encrypt,
5026 RSA_private_decrypt, RSA_private_encrypt, RSA_public_decrypt),
5027 always reject numbers >= n.
5030 *) In crypto/rand/md_rand.c, use a new short-time lock CRYPTO_LOCK_RAND2
5031 to synchronize access to 'locking_thread'. This is necessary on
5032 systems where access to 'locking_thread' (an 'unsigned long'
5033 variable) is not atomic.
5036 *) In crypto/rand/md_rand.c, set 'locking_thread' to current thread's ID
5037 *before* setting the 'crypto_lock_rand' flag. The previous code had
5038 a race condition if 0 is a valid thread ID.
5039 [Travis Vitek <vitek@roguewave.com>]
5041 *) Add support for shared libraries under Irix.
5042 [Albert Chin-A-Young <china@thewrittenword.com>]
5044 *) Add configuration option to build on Linux on both big-endian and
5046 [Ralf Baechle <ralf@uni-koblenz.de>]
5048 *) Add the possibility to create shared libraries on HP-UX.
5051 Changes between 0.9.6a and 0.9.6b [9 Jul 2001]
5053 *) Change ssleay_rand_bytes (crypto/rand/md_rand.c)
5054 to avoid a SSLeay/OpenSSL PRNG weakness pointed out by
5055 Markku-Juhani O. Saarinen <markku-juhani.saarinen@nokia.com>:
5056 PRNG state recovery was possible based on the output of
5057 one PRNG request appropriately sized to gain knowledge on
5058 'md' followed by enough consecutive 1-byte PRNG requests
5059 to traverse all of 'state'.
5061 1. When updating 'md_local' (the current thread's copy of 'md')
5062 during PRNG output generation, hash all of the previous
5063 'md_local' value, not just the half used for PRNG output.
5065 2. Make the number of bytes from 'state' included into the hash
5066 independent from the number of PRNG bytes requested.
5068 The first measure alone would be sufficient to avoid
5069 Markku-Juhani's attack. (Actually it had never occurred
5070 to me that the half of 'md_local' used for chaining was the
5071 half from which PRNG output bytes were taken -- I had always
5072 assumed that the secret half would be used.) The second
5073 measure makes sure that additional data from 'state' is never
5074 mixed into 'md_local' in small portions; this heuristically
5075 further strengthens the PRNG.
5078 *) Fix crypto/bn/asm/mips3.s.
5081 *) When only the key is given to "enc", the IV is undefined. Print out
5082 an error message in this case.
5085 *) Handle special case when X509_NAME is empty in X509 printing routines.
5088 *) In dsa_do_verify (crypto/dsa/dsa_ossl.c), verify that r and s are
5089 positive and less than q.
5092 *) Don't change *pointer in CRYPTO_add_lock() is add_lock_callback is
5093 used: it isn't thread safe and the add_lock_callback should handle
5095 [Paul Rose <Paul.Rose@bridge.com>]
5097 *) Verify that incoming data obeys the block size in
5098 ssl3_enc (ssl/s3_enc.c) and tls1_enc (ssl/t1_enc.c).
5102 [Ulf Möller, Bodo Möller]
5104 *) The countermeasure against Bleichbacher's attack on PKCS #1 v1.5
5105 RSA encryption was accidentally removed in s3_srvr.c in OpenSSL 0.9.5
5106 when fixing the server behaviour for backwards-compatible 'client
5107 hello' messages. (Note that the attack is impractical against
5108 SSL 3.0 and TLS 1.0 anyway because length and version checking
5109 means that the probability of guessing a valid ciphertext is
5110 around 2^-40; see section 5 in Bleichenbacher's CRYPTO '98
5113 Before 0.9.5, the countermeasure (hide the error by generating a
5114 random 'decryption result') did not work properly because
5115 ERR_clear_error() was missing, meaning that SSL_get_error() would
5116 detect the supposedly ignored error.
5118 Both problems are now fixed.
5121 *) In crypto/bio/bf_buff.c, increase DEFAULT_BUFFER_SIZE to 4096
5122 (previously it was 1024).
5125 *) Fix for compatibility mode trust settings: ignore trust settings
5126 unless some valid trust or reject settings are present.
5129 *) Fix for blowfish EVP: its a variable length cipher.
5132 *) Fix various bugs related to DSA S/MIME verification. Handle missing
5133 parameters in DSA public key structures and return an error in the
5134 DSA routines if parameters are absent.
5137 *) In versions up to 0.9.6, RAND_file_name() resorted to file ".rnd"
5138 in the current directory if neither $RANDFILE nor $HOME was set.
5139 RAND_file_name() in 0.9.6a returned NULL in this case. This has
5140 caused some confusion to Windows users who haven't defined $HOME.
5141 Thus RAND_file_name() is changed again: e_os.h can define a
5142 DEFAULT_HOME, which will be used if $HOME is not set.
5143 For Windows, we use "C:"; on other platforms, we still require
5144 environment variables.
5146 *) Move 'if (!initialized) RAND_poll()' into regions protected by
5147 CRYPTO_LOCK_RAND. This is not strictly necessary, but avoids
5148 having multiple threads call RAND_poll() concurrently.
5151 *) In crypto/rand/md_rand.c, replace 'add_do_not_lock' flag by a
5152 combination of a flag and a thread ID variable.
5153 Otherwise while one thread is in ssleay_rand_bytes (which sets the
5154 flag), *other* threads can enter ssleay_add_bytes without obeying
5155 the CRYPTO_LOCK_RAND lock (and may even illegally release the lock
5156 that they do not hold after the first thread unsets add_do_not_lock).
5159 *) Change bctest again: '-x' expressions are not available in all
5163 Changes between 0.9.6 and 0.9.6a [5 Apr 2001]
5165 *) Fix a couple of memory leaks in PKCS7_dataDecode()
5166 [Steve Henson, reported by Heyun Zheng <hzheng@atdsprint.com>]
5168 *) Change Configure and Makefiles to provide EXE_EXT, which will contain
5169 the default extension for executables, if any. Also, make the perl
5170 scripts that use symlink() to test if it really exists and use "cp"
5171 if it doesn't. All this made OpenSSL compilable and installable in
5175 *) Fix for asn1_GetSequence() for indefinite length constructed data.
5176 If SEQUENCE is length is indefinite just set c->slen to the total
5177 amount of data available.
5178 [Steve Henson, reported by shige@FreeBSD.org]
5179 [This change does not apply to 0.9.7.]
5181 *) Change bctest to avoid here-documents inside command substitution
5182 (workaround for FreeBSD /bin/sh bug).
5183 For compatibility with Ultrix, avoid shell functions (introduced
5184 in the bctest version that searches along $PATH).
5187 *) Rename 'des_encrypt' to 'des_encrypt1'. This avoids the clashes
5188 with des_encrypt() defined on some operating systems, like Solaris
5192 *) Check the result of RSA-CRT (see D. Boneh, R. DeMillo, R. Lipton:
5193 On the Importance of Eliminating Errors in Cryptographic
5194 Computations, J. Cryptology 14 (2001) 2, 101-119,
5195 http://theory.stanford.edu/~dabo/papers/faults.ps.gz).
5198 *) MIPS assembler BIGNUM division bug fix.
5201 *) Disabled incorrect Alpha assembler code.
5204 *) Fix PKCS#7 decode routines so they correctly update the length
5205 after reading an EOC for the EXPLICIT tag.
5207 [This change does not apply to 0.9.7.]
5209 *) Fix bug in PKCS#12 key generation routines. This was triggered
5210 if a 3DES key was generated with a 0 initial byte. Include
5211 PKCS12_BROKEN_KEYGEN compilation option to retain the old
5212 (but broken) behaviour.
5215 *) Enhance bctest to search for a working bc along $PATH and print
5217 [Tim Rice <tim@multitalents.net> via Richard Levitte]
5219 *) Fix memory leaks in err.c: free err_data string if necessary;
5220 don't write to the wrong index in ERR_set_error_data.
5223 *) Implement ssl23_peek (analogous to ssl23_read), which previously
5227 *) Replace rdtsc with _emit statements for VC++ version 5.
5228 [Jeremy Cooper <jeremy@baymoo.org>]
5230 *) Make it possible to reuse SSLv2 sessions.
5233 *) In copy_email() check for >= 0 as a return value for
5234 X509_NAME_get_index_by_NID() since 0 is a valid index.
5235 [Steve Henson reported by Massimiliano Pala <madwolf@opensca.org>]
5237 *) Avoid coredump with unsupported or invalid public keys by checking if
5238 X509_get_pubkey() fails in PKCS7_verify(). Fix memory leak when
5239 PKCS7_verify() fails with non detached data.
5242 *) Don't use getenv in library functions when run as setuid/setgid.
5243 New function OPENSSL_issetugid().
5246 *) Avoid false positives in memory leak detection code (crypto/mem_dbg.c)
5247 due to incorrect handling of multi-threading:
5249 1. Fix timing glitch in the MemCheck_off() portion of CRYPTO_mem_ctrl().
5251 2. Fix logical glitch in is_MemCheck_on() aka CRYPTO_is_mem_check_on().
5253 3. Count how many times MemCheck_off() has been called so that
5254 nested use can be treated correctly. This also avoids
5255 inband-signalling in the previous code (which relied on the
5256 assumption that thread ID 0 is impossible).
5259 *) Add "-rand" option also to s_client and s_server.
5262 *) Fix CPU detection on Irix 6.x.
5263 [Kurt Hockenbury <khockenb@stevens-tech.edu> and
5264 "Bruce W. Forsberg" <bruce.forsberg@baesystems.com>]
5266 *) Fix X509_NAME bug which produced incorrect encoding if X509_NAME
5269 [This change does not apply to 0.9.7.]
5271 *) Use the cached encoding of an X509_NAME structure rather than
5272 copying it. This is apparently the reason for the libsafe "errors"
5273 but the code is actually correct.
5276 *) Add new function BN_rand_range(), and fix DSA_sign_setup() to prevent
5277 Bleichenbacher's DSA attack.
5278 Extend BN_[pseudo_]rand: As before, top=1 forces the highest two bits
5279 to be set and top=0 forces the highest bit to be set; top=-1 is new
5280 and leaves the highest bit random.
5281 [Ulf Moeller, Bodo Moeller]
5283 *) In the NCONF_...-based implementations for CONF_... queries
5284 (crypto/conf/conf_lib.c), if the input LHASH is NULL, avoid using
5285 a temporary CONF structure with the data component set to NULL
5286 (which gives segmentation faults in lh_retrieve).
5287 Instead, use NULL for the CONF pointer in CONF_get_string and
5288 CONF_get_number (which may use environment variables) and directly
5289 return NULL from CONF_get_section.
5292 *) Fix potential buffer overrun for EBCDIC.
5295 *) Tolerate nonRepudiation as being valid for S/MIME signing and certSign
5296 keyUsage if basicConstraints absent for a CA.
5299 *) Make SMIME_write_PKCS7() write mail header values with a format that
5300 is more generally accepted (no spaces before the semicolon), since
5301 some programs can't parse those values properly otherwise. Also make
5302 sure BIO's that break lines after each write do not create invalid
5306 *) Make the CRL encoding routines work with empty SEQUENCE OF. The
5307 macros previously used would not encode an empty SEQUENCE OF
5308 and break the signature.
5310 [This change does not apply to 0.9.7.]
5312 *) Zero the premaster secret after deriving the master secret in
5316 *) Add some EVP_add_digest_alias registrations (as found in
5317 OpenSSL_add_all_digests()) to SSL_library_init()
5318 aka OpenSSL_add_ssl_algorithms(). This provides improved
5319 compatibility with peers using X.509 certificates
5320 with unconventional AlgorithmIdentifier OIDs.
5323 *) Fix for Irix with NO_ASM.
5324 ["Bruce W. Forsberg" <bruce.forsberg@baesystems.com>]
5326 *) ./config script fixes.
5327 [Ulf Moeller, Richard Levitte]
5329 *) Fix 'openssl passwd -1'.
5332 *) Change PKCS12_key_gen_asc() so it can cope with non null
5333 terminated strings whose length is passed in the passlen
5334 parameter, for example from PEM callbacks. This was done
5335 by adding an extra length parameter to asc2uni().
5336 [Steve Henson, reported by <oddissey@samsung.co.kr>]
5338 *) Fix C code generated by 'openssl dsaparam -C': If a BN_bin2bn
5339 call failed, free the DSA structure.
5342 *) Fix to uni2asc() to cope with zero length Unicode strings.
5343 These are present in some PKCS#12 files.
5346 *) Increase s2->wbuf allocation by one byte in ssl2_new (ssl/s2_lib.c).
5347 Otherwise do_ssl_write (ssl/s2_pkt.c) will write beyond buffer limits
5348 when writing a 32767 byte record.
5349 [Bodo Moeller; problem reported by Eric Day <eday@concentric.net>]
5351 *) In RSA_eay_public_{en,ed}crypt and RSA_eay_mod_exp (rsa_eay.c),
5352 obtain lock CRYPTO_LOCK_RSA before setting rsa->_method_mod_{n,p,q}.
5354 (RSA objects have a reference count access to which is protected
5355 by CRYPTO_LOCK_RSA [see rsa_lib.c, s3_srvr.c, ssl_cert.c, ssl_rsa.c],
5356 so they are meant to be shared between threads.)
5357 [Bodo Moeller, Geoff Thorpe; original patch submitted by
5358 "Reddie, Steven" <Steven.Reddie@ca.com>]
5360 *) Fix a deadlock in CRYPTO_mem_leaks().
5363 *) Use better test patterns in bntest.
5366 *) rand_win.c fix for Borland C.
5369 *) BN_rshift bugfix for n == 0.
5372 *) Add a 'bctest' script that checks for some known 'bc' bugs
5373 so that 'make test' does not abort just because 'bc' is broken.
5376 *) Store verify_result within SSL_SESSION also for client side to
5377 avoid potential security hole. (Re-used sessions on the client side
5378 always resulted in verify_result==X509_V_OK, not using the original
5379 result of the server certificate verification.)
5382 *) Fix ssl3_pending: If the record in s->s3->rrec is not of type
5383 SSL3_RT_APPLICATION_DATA, return 0.
5384 Similarly, change ssl2_pending to return 0 if SSL_in_init(s) is true.
5388 Both ssl2_peek and ssl3_peek, which were totally broken in earlier
5389 releases, have been re-implemented by renaming the previous
5390 implementations of ssl2_read and ssl3_read to ssl2_read_internal
5391 and ssl3_read_internal, respectively, and adding 'peek' parameters
5392 to them. The new ssl[23]_{read,peek} functions are calls to
5393 ssl[23]_read_internal with the 'peek' flag set appropriately.
5394 A 'peek' parameter has also been added to ssl3_read_bytes, which
5395 does the actual work for ssl3_read_internal.
5398 *) Initialise "ex_data" member of RSA/DSA/DH structures prior to calling
5399 the method-specific "init()" handler. Also clean up ex_data after
5400 calling the method-specific "finish()" handler. Previously, this was
5401 happening the other way round.
5404 *) Increase BN_CTX_NUM (the number of BIGNUMs in a BN_CTX) to 16.
5405 The previous value, 12, was not always sufficient for BN_mod_exp().
5408 *) Make sure that shared libraries get the internal name engine with
5409 the full version number and not just 0. This should mark the
5410 shared libraries as not backward compatible. Of course, this should
5411 be changed again when we can guarantee backward binary compatibility.
5414 *) Fix typo in get_cert_by_subject() in by_dir.c
5415 [Jean-Marc Desperrier <jean-marc.desperrier@certplus.com>]
5417 *) Rework the system to generate shared libraries:
5419 - Make note of the expected extension for the shared libraries and
5420 if there is a need for symbolic links from for example libcrypto.so.0
5421 to libcrypto.so.0.9.7. There is extended info in Configure for
5424 - Make as few rebuilds of the shared libraries as possible.
5426 - Still avoid linking the OpenSSL programs with the shared libraries.
5428 - When installing, install the shared libraries separately from the
5432 *) Fix SSL_CTX_set_read_ahead macro to actually use its argument.
5434 Copy SSL_CTX's read_ahead flag to SSL object directly in SSL_new
5435 and not in SSL_clear because the latter is also used by the
5436 accept/connect functions; previously, the settings made by
5437 SSL_set_read_ahead would be lost during the handshake.
5438 [Bodo Moeller; problems reported by Anders Gertz <gertz@epact.se>]
5440 *) Correct util/mkdef.pl to be selective about disabled algorithms.
5441 Previously, it would create entries for disableed algorithms no
5445 *) Added several new manual pages for SSL_* function.
5448 Changes between 0.9.5a and 0.9.6 [24 Sep 2000]
5450 *) In ssl23_get_client_hello, generate an error message when faced
5451 with an initial SSL 3.0/TLS record that is too small to contain the
5452 first two bytes of the ClientHello message, i.e. client_version.
5453 (Note that this is a pathologic case that probably has never happened
5454 in real life.) The previous approach was to use the version number
5455 from the record header as a substitute; but our protocol choice
5456 should not depend on that one because it is not authenticated
5457 by the Finished messages.
5460 *) More robust randomness gathering functions for Windows.
5461 [Jeffrey Altman <jaltman@columbia.edu>]
5463 *) For compatibility reasons if the flag X509_V_FLAG_ISSUER_CHECK is
5464 not set then we don't setup the error code for issuer check errors
5465 to avoid possibly overwriting other errors which the callback does
5466 handle. If an application does set the flag then we assume it knows
5467 what it is doing and can handle the new informational codes
5471 *) Fix for a nasty bug in ASN1_TYPE handling. ASN1_TYPE is used for
5472 a general "ANY" type, as such it should be able to decode anything
5473 including tagged types. However it didn't check the class so it would
5474 wrongly interpret tagged types in the same way as their universal
5475 counterpart and unknown types were just rejected. Changed so that the
5476 tagged and unknown types are handled in the same way as a SEQUENCE:
5477 that is the encoding is stored intact. There is also a new type
5478 "V_ASN1_OTHER" which is used when the class is not universal, in this
5479 case we have no idea what the actual type is so we just lump them all
5483 *) On VMS, stdout may very well lead to a file that is written to
5484 in a record-oriented fashion. That means that every write() will
5485 write a separate record, which will be read separately by the
5486 programs trying to read from it. This can be very confusing.
5488 The solution is to put a BIO filter in the way that will buffer
5489 text until a linefeed is reached, and then write everything a
5490 line at a time, so every record written will be an actual line,
5491 not chunks of lines and not (usually doesn't happen, but I've
5492 seen it once) several lines in one record. BIO_f_linebuffer() is
5495 Currently, it's a VMS-only method, because that's where it has
5496 been tested well enough.
5499 *) Remove 'optimized' squaring variant in BN_mod_mul_montgomery,
5500 it can return incorrect results.
5501 (Note: The buggy variant was not enabled in OpenSSL 0.9.5a,
5502 but it was in 0.9.6-beta[12].)
5505 *) Disable the check for content being present when verifying detached
5506 signatures in pk7_smime.c. Some versions of Netscape (wrongly)
5507 include zero length content when signing messages.
5510 *) New BIO_shutdown_wr macro, which invokes the BIO_C_SHUTDOWN_WR
5511 BIO_ctrl (for BIO pairs).
5514 *) Add DSO method for VMS.
5517 *) Bug fix: Montgomery multiplication could produce results with the
5521 *) Add RPM specification openssl.spec and modify it to build three
5522 packages. The default package contains applications, application
5523 documentation and run-time libraries. The devel package contains
5524 include files, static libraries and function documentation. The
5525 doc package contains the contents of the doc directory. The original
5526 openssl.spec was provided by Damien Miller <djm@mindrot.org>.
5529 *) Add a large number of documentation files for many SSL routines.
5530 [Lutz Jaenicke <Lutz.Jaenicke@aet.TU-Cottbus.DE>]
5532 *) Add a configuration entry for Sony News 4.
5533 [NAKAJI Hiroyuki <nakaji@tutrp.tut.ac.jp>]
5535 *) Don't set the two most significant bits to one when generating a
5536 random number < q in the DSA library.
5539 *) New SSL API mode 'SSL_MODE_AUTO_RETRY'. This disables the default
5540 behaviour that SSL_read may result in SSL_ERROR_WANT_READ (even if
5541 the underlying transport is blocking) if a handshake took place.
5542 (The default behaviour is needed by applications such as s_client
5543 and s_server that use select() to determine when to use SSL_read;
5544 but for applications that know in advance when to expect data, it
5545 just makes things more complicated.)
5548 *) Add RAND_egd_bytes(), which gives control over the number of bytes read
5552 *) Add a few more EBCDIC conditionals that make `req' and `x509'
5553 work better on such systems.
5554 [Martin Kraemer <Martin.Kraemer@MchP.Siemens.De>]
5556 *) Add two demo programs for PKCS12_parse() and PKCS12_create().
5557 Update PKCS12_parse() so it copies the friendlyName and the
5558 keyid to the certificates aux info.
5561 *) Fix bug in PKCS7_verify() which caused an infinite loop
5562 if there was more than one signature.
5563 [Sven Uszpelkat <su@celocom.de>]
5565 *) Major change in util/mkdef.pl to include extra information
5566 about each symbol, as well as presentig variables as well
5567 as functions. This change means that there's n more need
5568 to rebuild the .num files when some algorithms are excluded.
5571 *) Allow the verify time to be set by an application,
5572 rather than always using the current time.
5575 *) Phase 2 verify code reorganisation. The certificate
5576 verify code now looks up an issuer certificate by a
5577 number of criteria: subject name, authority key id
5578 and key usage. It also verifies self signed certificates
5579 by the same criteria. The main comparison function is
5580 X509_check_issued() which performs these checks.
5582 Lot of changes were necessary in order to support this
5583 without completely rewriting the lookup code.
5585 Authority and subject key identifier are now cached.
5587 The LHASH 'certs' is X509_STORE has now been replaced
5588 by a STACK_OF(X509_OBJECT). This is mainly because an
5589 LHASH can't store or retrieve multiple objects with
5590 the same hash value.
5592 As a result various functions (which were all internal
5593 use only) have changed to handle the new X509_STORE
5594 structure. This will break anything that messed round
5595 with X509_STORE internally.
5597 The functions X509_STORE_add_cert() now checks for an
5598 exact match, rather than just subject name.
5600 The X509_STORE API doesn't directly support the retrieval
5601 of multiple certificates matching a given criteria, however
5602 this can be worked round by performing a lookup first
5603 (which will fill the cache with candidate certificates)
5604 and then examining the cache for matches. This is probably
5605 the best we can do without throwing out X509_LOOKUP
5606 entirely (maybe later...).
5608 The X509_VERIFY_CTX structure has been enhanced considerably.
5610 All certificate lookup operations now go via a get_issuer()
5611 callback. Although this currently uses an X509_STORE it
5612 can be replaced by custom lookups. This is a simple way
5613 to bypass the X509_STORE hackery necessary to make this
5614 work and makes it possible to use more efficient techniques
5615 in future. A very simple version which uses a simple
5616 STACK for its trusted certificate store is also provided
5617 using X509_STORE_CTX_trusted_stack().
5619 The verify_cb() and verify() callbacks now have equivalents
5620 in the X509_STORE_CTX structure.
5622 X509_STORE_CTX also has a 'flags' field which can be used
5623 to customise the verify behaviour.
5626 *) Add new PKCS#7 signing option PKCS7_NOSMIMECAP which
5627 excludes S/MIME capabilities.
5630 *) When a certificate request is read in keep a copy of the
5631 original encoding of the signed data and use it when outputing
5632 again. Signatures then use the original encoding rather than
5633 a decoded, encoded version which may cause problems if the
5634 request is improperly encoded.
5637 *) For consistency with other BIO_puts implementations, call
5638 buffer_write(b, ...) directly in buffer_puts instead of calling
5641 In BIO_puts, increment b->num_write as in BIO_write.
5642 [Peter.Sylvester@EdelWeb.fr]
5644 *) Fix BN_mul_word for the case where the word is 0. (We have to use
5645 BN_zero, we may not return a BIGNUM with an array consisting of
5649 *) Avoid calling abort() from within the library when problems are
5650 detected, except if preprocessor symbols have been defined
5651 (such as REF_CHECK, BN_DEBUG etc.).
5654 *) New openssl application 'rsautl'. This utility can be
5655 used for low level RSA operations. DER public key
5656 BIO/fp routines also added.
5659 *) New Configure entry and patches for compiling on QNX 4.
5660 [Andreas Schneider <andreas@ds3.etech.fh-hamburg.de>]
5662 *) A demo state-machine implementation was sponsored by
5663 Nuron (http://www.nuron.com/) and is now available in
5664 demos/state_machine.
5667 *) New options added to the 'dgst' utility for signature
5668 generation and verification.
5671 *) Unrecognized PKCS#7 content types are now handled via a
5672 catch all ASN1_TYPE structure. This allows unsupported
5673 types to be stored as a "blob" and an application can
5674 encode and decode it manually.
5677 *) Fix various signed/unsigned issues to make a_strex.c
5679 [Oscar Jacobsson <oscar.jacobsson@celocom.com>]
5681 *) ASN1 fixes. i2d_ASN1_OBJECT was not returning the correct
5682 length if passed a buffer. ASN1_INTEGER_to_BN failed
5683 if passed a NULL BN and its argument was negative.
5684 [Steve Henson, pointed out by Sven Heiberg <sven@tartu.cyber.ee>]
5686 *) Modification to PKCS#7 encoding routines to output definite
5687 length encoding. Since currently the whole structures are in
5688 memory there's not real point in using indefinite length
5689 constructed encoding. However if OpenSSL is compiled with
5690 the flag PKCS7_INDEFINITE_ENCODING the old form is used.
5693 *) Added BIO_vprintf() and BIO_vsnprintf().
5696 *) Added more prefixes to parse for in the the strings written
5697 through a logging bio, to cover all the levels that are available
5698 through syslog. The prefixes are now:
5700 PANIC, EMERG, EMR => LOG_EMERG
5701 ALERT, ALR => LOG_ALERT
5702 CRIT, CRI => LOG_CRIT
5703 ERROR, ERR => LOG_ERR
5704 WARNING, WARN, WAR => LOG_WARNING
5705 NOTICE, NOTE, NOT => LOG_NOTICE
5706 INFO, INF => LOG_INFO
5707 DEBUG, DBG => LOG_DEBUG
5709 and as before, if none of those prefixes are present at the
5710 beginning of the string, LOG_ERR is chosen.
5712 On Win32, the LOG_* levels are mapped according to this:
5714 LOG_EMERG, LOG_ALERT, LOG_CRIT, LOG_ERR => EVENTLOG_ERROR_TYPE
5715 LOG_WARNING => EVENTLOG_WARNING_TYPE
5716 LOG_NOTICE, LOG_INFO, LOG_DEBUG => EVENTLOG_INFORMATION_TYPE
5720 *) Made it possible to reconfigure with just the configuration
5721 argument "reconf" or "reconfigure". The command line arguments
5722 are stored in Makefile.ssl in the variable CONFIGURE_ARGS,
5723 and are retrieved from there when reconfiguring.
5727 [Assar Westerlund <assar@sics.se>, Richard Levitte]
5729 *) Add the arguments -CAfile and -CApath to the pkcs12 utility.
5732 *) The obj_dat.pl script was messing up the sorting of object
5733 names. The reason was that it compared the quoted version
5734 of strings as a result "OCSP" > "OCSP Signing" because
5735 " > SPACE. Changed script to store unquoted versions of
5736 names and add quotes on output. It was also omitting some
5737 names from the lookup table if they were given a default
5738 value (that is if SN is missing it is given the same
5739 value as LN and vice versa), these are now added on the
5740 grounds that if an object has a name we should be able to
5741 look it up. Finally added warning output when duplicate
5742 short or long names are found.
5745 *) Changes needed for Tandem NSK.
5746 [Scott Uroff <scott@xypro.com>]
5748 *) Fix SSL 2.0 rollback checking: Due to an off-by-one error in
5749 RSA_padding_check_SSLv23(), special padding was never detected
5750 and thus the SSL 3.0/TLS 1.0 countermeasure against protocol
5751 version rollback attacks was not effective.
5753 In s23_clnt.c, don't use special rollback-attack detection padding
5754 (RSA_SSLV23_PADDING) if SSL 2.0 is the only protocol enabled in the
5755 client; similarly, in s23_srvr.c, don't do the rollback check if
5756 SSL 2.0 is the only protocol enabled in the server.
5759 *) Make it possible to get hexdumps of unprintable data with 'openssl
5760 asn1parse'. By implication, the functions ASN1_parse_dump() and
5761 BIO_dump_indent() are added.
5764 *) New functions ASN1_STRING_print_ex() and X509_NAME_print_ex()
5765 these print out strings and name structures based on various
5766 flags including RFC2253 support and proper handling of
5767 multibyte characters. Added options to the 'x509' utility
5768 to allow the various flags to be set.
5771 *) Various fixes to use ASN1_TIME instead of ASN1_UTCTIME.
5772 Also change the functions X509_cmp_current_time() and
5773 X509_gmtime_adj() work with an ASN1_TIME structure,
5774 this will enable certificates using GeneralizedTime in validity
5775 dates to be checked.
5778 *) Make the NEG_PUBKEY_BUG code (which tolerates invalid
5779 negative public key encodings) on by default,
5780 NO_NEG_PUBKEY_BUG can be set to disable it.
5783 *) New function c2i_ASN1_OBJECT() which acts on ASN1_OBJECT
5784 content octets. An i2c_ASN1_OBJECT is unnecessary because
5785 the encoding can be trivially obtained from the structure.
5788 *) crypto/err.c locking bugfix: Use write locks (CRYPTO_w_[un]lock),
5789 not read locks (CRYPTO_r_[un]lock).
5792 *) A first attempt at creating official support for shared
5793 libraries through configuration. I've kept it so the
5794 default is static libraries only, and the OpenSSL programs
5795 are always statically linked for now, but there are
5796 preparations for dynamic linking in place.
5797 This has been tested on Linux and Tru64.
5800 *) Randomness polling function for Win9x, as described in:
5801 Peter Gutmann, Software Generation of Practically Strong
5805 *) Fix so PRNG is seeded in req if using an already existing
5809 *) New options to smime application. -inform and -outform
5810 allow alternative formats for the S/MIME message including
5811 PEM and DER. The -content option allows the content to be
5812 specified separately. This should allow things like Netscape
5813 form signing output easier to verify.
5816 *) Fix the ASN1 encoding of tags using the 'long form'.
5819 *) New ASN1 functions, i2c_* and c2i_* for INTEGER and BIT
5820 STRING types. These convert content octets to and from the
5821 underlying type. The actual tag and length octets are
5822 already assumed to have been read in and checked. These
5823 are needed because all other string types have virtually
5824 identical handling apart from the tag. By having versions
5825 of the ASN1 functions that just operate on content octets
5826 IMPLICIT tagging can be handled properly. It also allows
5827 the ASN1_ENUMERATED code to be cut down because ASN1_ENUMERATED
5828 and ASN1_INTEGER are identical apart from the tag.
5831 *) Change the handling of OID objects as follows:
5833 - New object identifiers are inserted in objects.txt, following
5834 the syntax given in objects.README.
5835 - objects.pl is used to process obj_mac.num and create a new
5837 - obj_dat.pl is used to create a new obj_dat.h, using the data in
5840 This is currently kind of a hack, and the perl code in objects.pl
5841 isn't very elegant, but it works as I intended. The simplest way
5842 to check that it worked correctly is to look in obj_dat.h and
5843 check the array nid_objs and make sure the objects haven't moved
5844 around (this is important!). Additions are OK, as well as
5845 consistent name changes.
5848 *) Add BSD-style MD5-based passwords to 'openssl passwd' (option '-1').
5851 *) Addition of the command line parameter '-rand file' to 'openssl req'.
5852 The given file adds to whatever has already been seeded into the
5853 random pool through the RANDFILE configuration file option or
5854 environment variable, or the default random state file.
5857 *) mkstack.pl now sorts each macro group into lexical order.
5858 Previously the output order depended on the order the files
5859 appeared in the directory, resulting in needless rewriting
5863 *) Patches to make OpenSSL compile under Win32 again. Mostly
5864 work arounds for the VC++ problem that it treats func() as
5865 func(void). Also stripped out the parts of mkdef.pl that
5866 added extra typesafe functions: these no longer exist.
5869 *) Reorganisation of the stack code. The macros are now all
5870 collected in safestack.h . Each macro is defined in terms of
5871 a "stack macro" of the form SKM_<name>(type, a, b). The
5872 DEBUG_SAFESTACK is now handled in terms of function casts,
5873 this has the advantage of retaining type safety without the
5874 use of additional functions. If DEBUG_SAFESTACK is not defined
5875 then the non typesafe macros are used instead. Also modified the
5876 mkstack.pl script to handle the new form. Needs testing to see
5877 if which (if any) compilers it chokes and maybe make DEBUG_SAFESTACK
5878 the default if no major problems. Similar behaviour for ASN1_SET_OF
5879 and PKCS12_STACK_OF.
5882 *) When some versions of IIS use the 'NET' form of private key the
5883 key derivation algorithm is different. Normally MD5(password) is
5884 used as a 128 bit RC4 key. In the modified case
5885 MD5(MD5(password) + "SGCKEYSALT") is used insted. Added some
5886 new functions i2d_RSA_NET(), d2i_RSA_NET() etc which are the same
5887 as the old Netscape_RSA functions except they have an additional
5888 'sgckey' parameter which uses the modified algorithm. Also added
5889 an -sgckey command line option to the rsa utility. Thanks to
5890 Adrian Peck <bertie@ncipher.com> for posting details of the modified
5891 algorithm to openssl-dev.
5894 *) The evp_local.h macros were using 'c.##kname' which resulted in
5895 invalid expansion on some systems (SCO 5.0.5 for example).
5896 Corrected to 'c.kname'.
5897 [Phillip Porch <root@theporch.com>]
5899 *) New X509_get1_email() and X509_REQ_get1_email() functions that return
5900 a STACK of email addresses from a certificate or request, these look
5901 in the subject name and the subject alternative name extensions and
5902 omit any duplicate addresses.
5905 *) Re-implement BN_mod_exp2_mont using independent (and larger) windows.
5906 This makes DSA verification about 2 % faster.
5909 *) Increase maximum window size in BN_mod_exp_... to 6 bits instead of 5
5910 (meaning that now 2^5 values will be precomputed, which is only 4 KB
5911 plus overhead for 1024 bit moduli).
5912 This makes exponentiations about 0.5 % faster for 1024 bit
5913 exponents (as measured by "openssl speed rsa2048").
5916 *) Rename memory handling macros to avoid conflicts with other
5918 Malloc => OPENSSL_malloc
5919 Malloc_locked => OPENSSL_malloc_locked
5920 Realloc => OPENSSL_realloc
5921 Free => OPENSSL_free
5924 *) New function BN_mod_exp_mont_word for small bases (roughly 15%
5925 faster than BN_mod_exp_mont, i.e. 7% for a full DH exchange).
5928 *) CygWin32 support.
5929 [John Jarvie <jjarvie@newsguy.com>]
5931 *) The type-safe stack code has been rejigged. It is now only compiled
5932 in when OpenSSL is configured with the DEBUG_SAFESTACK option and
5933 by default all type-specific stack functions are "#define"d back to
5934 standard stack functions. This results in more streamlined output
5935 but retains the type-safety checking possibilities of the original
5939 *) The STACK code has been cleaned up, and certain type declarations
5940 that didn't make a lot of sense have been brought in line. This has
5941 also involved a cleanup of sorts in safestack.h to more correctly
5942 map type-safe stack functions onto their plain stack counterparts.
5943 This work has also resulted in a variety of "const"ifications of
5944 lots of the code, especially "_cmp" operations which should normally
5945 be prototyped with "const" parameters anyway.
5948 *) When generating bytes for the first time in md_rand.c, 'stir the pool'
5949 by seeding with STATE_SIZE dummy bytes (with zero entropy count).
5950 (The PRNG state consists of two parts, the large pool 'state' and 'md',
5951 where all of 'md' is used each time the PRNG is used, but 'state'
5952 is used only indexed by a cyclic counter. As entropy may not be
5953 well distributed from the beginning, 'md' is important as a
5954 chaining variable. However, the output function chains only half
5955 of 'md', i.e. 80 bits. ssleay_rand_add, on the other hand, chains
5956 all of 'md', and seeding with STATE_SIZE dummy bytes will result
5957 in all of 'state' being rewritten, with the new values depending
5958 on virtually all of 'md'. This overcomes the 80 bit limitation.)
5961 *) In ssl/s2_clnt.c and ssl/s3_clnt.c, call ERR_clear_error() when
5962 the handshake is continued after ssl_verify_cert_chain();
5963 otherwise, if SSL_VERIFY_NONE is set, remaining error codes
5964 can lead to 'unexplainable' connection aborts later.
5965 [Bodo Moeller; problem tracked down by Lutz Jaenicke]
5967 *) Major EVP API cipher revision.
5968 Add hooks for extra EVP features. This allows various cipher
5969 parameters to be set in the EVP interface. Support added for variable
5970 key length ciphers via the EVP_CIPHER_CTX_set_key_length() function and
5971 setting of RC2 and RC5 parameters.
5973 Modify EVP_OpenInit() and EVP_SealInit() to cope with variable key length
5976 Remove lots of duplicated code from the EVP library. For example *every*
5977 cipher init() function handles the 'iv' in the same way according to the
5978 cipher mode. They also all do nothing if the 'key' parameter is NULL and
5979 for CFB and OFB modes they zero ctx->num.
5981 New functionality allows removal of S/MIME code RC2 hack.
5983 Most of the routines have the same form and so can be declared in terms
5986 By shifting this to the top level EVP_CipherInit() it can be removed from
5987 all individual ciphers. If the cipher wants to handle IVs or keys
5988 differently it can set the EVP_CIPH_CUSTOM_IV or EVP_CIPH_ALWAYS_CALL_INIT
5991 Change lots of functions like EVP_EncryptUpdate() to now return a
5992 value: although software versions of the algorithms cannot fail
5993 any installed hardware versions can.
5996 *) Implement SSL_OP_TLS_ROLLBACK_BUG: In ssl3_get_client_key_exchange, if
5997 this option is set, tolerate broken clients that send the negotiated
5998 protocol version number instead of the requested protocol version
6002 *) Call dh_tmp_cb (set by ..._TMP_DH_CB) with correct 'is_export' flag;
6003 i.e. non-zero for export ciphersuites, zero otherwise.
6004 Previous versions had this flag inverted, inconsistent with
6005 rsa_tmp_cb (..._TMP_RSA_CB).
6006 [Bodo Moeller; problem reported by Amit Chopra]
6008 *) Add missing DSA library text string. Work around for some IIS
6009 key files with invalid SEQUENCE encoding.
6012 *) Add a document (doc/standards.txt) that list all kinds of standards
6013 and so on that are implemented in OpenSSL.
6016 *) Enhance c_rehash script. Old version would mishandle certificates
6017 with the same subject name hash and wouldn't handle CRLs at all.
6018 Added -fingerprint option to crl utility, to support new c_rehash
6022 *) Eliminate non-ANSI declarations in crypto.h and stack.h.
6025 *) Fix for SSL server purpose checking. Server checking was
6026 rejecting certificates which had extended key usage present
6027 but no ssl client purpose.
6028 [Steve Henson, reported by Rene Grosser <grosser@hisolutions.com>]
6030 *) Make PKCS#12 code work with no password. The PKCS#12 spec
6031 is a little unclear about how a blank password is handled.
6032 Since the password in encoded as a BMPString with terminating
6033 double NULL a zero length password would end up as just the
6034 double NULL. However no password at all is different and is
6035 handled differently in the PKCS#12 key generation code. NS
6036 treats a blank password as zero length. MSIE treats it as no
6037 password on export: but it will try both on import. We now do
6038 the same: PKCS12_parse() tries zero length and no password if
6039 the password is set to "" or NULL (NULL is now a valid password:
6040 it wasn't before) as does the pkcs12 application.
6043 *) Bugfixes in apps/x509.c: Avoid a memory leak; and don't use
6044 perror when PEM_read_bio_X509_REQ fails, the error message must
6045 be obtained from the error queue.
6048 *) Avoid 'thread_hash' memory leak in crypto/err/err.c by freeing
6049 it in ERR_remove_state if appropriate, and change ERR_get_state
6050 accordingly to avoid race conditions (this is necessary because
6051 thread_hash is no longer constant once set).
6054 *) Bugfix for linux-elf makefile.one.
6057 *) RSA_get_default_method() will now cause a default
6058 RSA_METHOD to be chosen if one doesn't exist already.
6059 Previously this was only set during a call to RSA_new()
6060 or RSA_new_method(NULL) meaning it was possible for
6061 RSA_get_default_method() to return NULL.
6064 *) Added native name translation to the existing DSO code
6065 that will convert (if the flag to do so is set) filenames
6066 that are sufficiently small and have no path information
6067 into a canonical native form. Eg. "blah" converted to
6068 "libblah.so" or "blah.dll" etc.
6071 *) New function ERR_error_string_n(e, buf, len) which is like
6072 ERR_error_string(e, buf), but writes at most 'len' bytes
6073 including the 0 terminator. For ERR_error_string_n, 'buf'
6075 [Damien Miller <djm@mindrot.org>, Bodo Moeller]
6077 *) CONF library reworked to become more general. A new CONF
6078 configuration file reader "class" is implemented as well as a
6079 new functions (NCONF_*, for "New CONF") to handle it. The now
6080 old CONF_* functions are still there, but are reimplemented to
6081 work in terms of the new functions. Also, a set of functions
6082 to handle the internal storage of the configuration data is
6083 provided to make it easier to write new configuration file
6084 reader "classes" (I can definitely see something reading a
6085 configuration file in XML format, for example), called _CONF_*,
6086 or "the configuration storage API"...
6088 The new configuration file reading functions are:
6090 NCONF_new, NCONF_free, NCONF_load, NCONF_load_fp, NCONF_load_bio,
6091 NCONF_get_section, NCONF_get_string, NCONF_get_numbre
6093 NCONF_default, NCONF_WIN32
6095 NCONF_dump_fp, NCONF_dump_bio
6097 NCONF_default and NCONF_WIN32 are method (or "class") choosers,
6098 NCONF_new creates a new CONF object. This works in the same way
6099 as other interfaces in OpenSSL, like the BIO interface.
6100 NCONF_dump_* dump the internal storage of the configuration file,
6101 which is useful for debugging. All other functions take the same
6102 arguments as the old CONF_* functions wth the exception of the
6103 first that must be a `CONF *' instead of a `LHASH *'.
6105 To make it easer to use the new classes with the old CONF_* functions,
6106 the function CONF_set_default_method is provided.
6109 *) Add '-tls1' option to 'openssl ciphers', which was already
6110 mentioned in the documentation but had not been implemented.
6111 (This option is not yet really useful because even the additional
6112 experimental TLS 1.0 ciphers are currently treated as SSL 3.0 ciphers.)
6115 *) Initial DSO code added into libcrypto for letting OpenSSL (and
6116 OpenSSL-based applications) load shared libraries and bind to
6117 them in a portable way.
6118 [Geoff Thorpe, with contributions from Richard Levitte]
6120 Changes between 0.9.5 and 0.9.5a [1 Apr 2000]
6122 *) Make sure _lrotl and _lrotr are only used with MSVC.
6124 *) Use lock CRYPTO_LOCK_RAND correctly in ssleay_rand_status
6125 (the default implementation of RAND_status).
6127 *) Rename openssl x509 option '-crlext', which was added in 0.9.5,
6128 to '-clrext' (= clear extensions), as intended and documented.
6129 [Bodo Moeller; inconsistency pointed out by Michael Attili
6132 *) Fix for HMAC. It wasn't zeroing the rest of the block if the key length
6133 was larger than the MD block size.
6134 [Steve Henson, pointed out by Yost William <YostW@tce.com>]
6136 *) Modernise PKCS12_parse() so it uses STACK_OF(X509) for its ca argument
6137 fix a leak when the ca argument was passed as NULL. Stop X509_PUBKEY_set()
6138 using the passed key: if the passed key was a private key the result
6139 of X509_print(), for example, would be to print out all the private key
6143 *) des_quad_cksum() byte order bug fix.
6144 [Ulf Möller, using the problem description in krb4-0.9.7, where
6145 the solution is attributed to Derrick J Brashear <shadow@DEMENTIA.ORG>]
6147 *) Fix so V_ASN1_APP_CHOOSE works again: however its use is strongly
6149 [Steve Henson, pointed out by Brian Korver <briank@cs.stanford.edu>]
6151 *) For easily testing in shell scripts whether some command
6152 'openssl XXX' exists, the new pseudo-command 'openssl no-XXX'
6153 returns with exit code 0 iff no command of the given name is available.
6154 'no-XXX' is printed in this case, 'XXX' otherwise. In both cases,
6155 the output goes to stdout and nothing is printed to stderr.
6156 Additional arguments are always ignored.
6158 Since for each cipher there is a command of the same name,
6159 the 'no-cipher' compilation switches can be tested this way.
6161 ('openssl no-XXX' is not able to detect pseudo-commands such
6162 as 'quit', 'list-XXX-commands', or 'no-XXX' itself.)
6165 *) Update test suite so that 'make test' succeeds in 'no-rsa' configuration.
6168 *) For SSL_[CTX_]set_tmp_dh, don't create a DH key if SSL_OP_SINGLE_DH_USE
6169 is set; it will be thrown away anyway because each handshake creates
6171 ssl_cert_dup, which is used by SSL_new, now copies DH keys in addition
6172 to parameters -- in previous versions (since OpenSSL 0.9.3) the
6173 'default key' from SSL_CTX_set_tmp_dh would always be lost, meanining
6174 you effectivly got SSL_OP_SINGLE_DH_USE when using this macro.
6177 *) New s_client option -ign_eof: EOF at stdin is ignored, and
6178 'Q' and 'R' lose their special meanings (quit/renegotiate).
6179 This is part of what -quiet does; unlike -quiet, -ign_eof
6180 does not suppress any output.
6183 *) Add compatibility options to the purpose and trust code. The
6184 purpose X509_PURPOSE_ANY is "any purpose" which automatically
6185 accepts a certificate or CA, this was the previous behaviour,
6186 with all the associated security issues.
6188 X509_TRUST_COMPAT is the old trust behaviour: only and
6189 automatically trust self signed roots in certificate store. A
6190 new trust setting X509_TRUST_DEFAULT is used to specify that
6191 a purpose has no associated trust setting and it should instead
6192 use the value in the default purpose.
6195 *) Fix the PKCS#8 DSA private key code so it decodes keys again
6196 and fix a memory leak.
6199 *) In util/mkerr.pl (which implements 'make errors'), preserve
6200 reason strings from the previous version of the .c file, as
6201 the default to have only downcase letters (and digits) in
6202 automatically generated reasons codes is not always appropriate.
6205 *) In ERR_load_ERR_strings(), build an ERR_LIB_SYS error reason table
6206 using strerror. Previously, ERR_reason_error_string() returned
6207 library names as reason strings for SYSerr; but SYSerr is a special
6208 case where small numbers are errno values, not library numbers.
6211 *) Add '-dsaparam' option to 'openssl dhparam' application. This
6212 converts DSA parameters into DH parameters. (When creating parameters,
6213 DSA_generate_parameters is used.)
6216 *) Include 'length' (recommended exponent length) in C code generated
6217 by 'openssl dhparam -C'.
6220 *) The second argument to set_label in perlasm was already being used
6221 so couldn't be used as a "file scope" flag. Moved to third argument
6225 *) In PEM_ASN1_write_bio and some other functions, use RAND_pseudo_bytes
6226 instead of RAND_bytes for encryption IVs and salts.
6229 *) Include RAND_status() into RAND_METHOD instead of implementing
6230 it only for md_rand.c Otherwise replacing the PRNG by calling
6231 RAND_set_rand_method would be impossible.
6234 *) Don't let DSA_generate_key() enter an infinite loop if the random
6235 number generation fails.
6238 *) New 'rand' application for creating pseudo-random output.
6241 *) Added configuration support for Linux/IA64
6242 [Rolf Haberrecker <rolf@suse.de>]
6244 *) Assembler module support for Mingw32.
6247 *) Shared library support for HPUX (in shlib/).
6248 [Lutz Jaenicke <Lutz.Jaenicke@aet.TU-Cottbus.DE> and Anonymous]
6250 *) Shared library support for Solaris gcc.
6251 [Lutz Behnke <behnke@trustcenter.de>]
6253 Changes between 0.9.4 and 0.9.5 [28 Feb 2000]
6255 *) PKCS7_encrypt() was adding text MIME headers twice because they
6256 were added manually and by SMIME_crlf_copy().
6259 *) In bntest.c don't call BN_rand with zero bits argument.
6260 [Steve Henson, pointed out by Andrew W. Gray <agray@iconsinc.com>]
6262 *) BN_mul bugfix: In bn_mul_part_recursion() only the a>a[n] && b>b[n]
6263 case was implemented. This caused BN_div_recp() to fail occasionally.
6266 *) Add an optional second argument to the set_label() in the perl
6267 assembly language builder. If this argument exists and is set
6268 to 1 it signals that the assembler should use a symbol whose
6269 scope is the entire file, not just the current function. This
6270 is needed with MASM which uses the format label:: for this scope.
6271 [Steve Henson, pointed out by Peter Runestig <peter@runestig.com>]
6273 *) Change the ASN1 types so they are typedefs by default. Before
6274 almost all types were #define'd to ASN1_STRING which was causing
6275 STACK_OF() problems: you couldn't declare STACK_OF(ASN1_UTF8STRING)
6279 *) Change names of new functions to the new get1/get0 naming
6280 convention: After 'get1', the caller owns a reference count
6281 and has to call ..._free; 'get0' returns a pointer to some
6282 data structure without incrementing reference counters.
6283 (Some of the existing 'get' functions increment a reference
6284 counter, some don't.)
6285 Similarly, 'set1' and 'add1' functions increase reference
6286 counters or duplicate objects.
6289 *) Allow for the possibility of temp RSA key generation failure:
6290 the code used to assume it always worked and crashed on failure.
6293 *) Fix potential buffer overrun problem in BIO_printf().
6294 [Ulf Möller, using public domain code by Patrick Powell; problem
6295 pointed out by David Sacerdote <das33@cornell.edu>]
6297 *) Support EGD <http://www.lothar.com/tech/crypto/>. New functions
6298 RAND_egd() and RAND_status(). In the command line application,
6299 the EGD socket can be specified like a seed file using RANDFILE
6303 *) Allow the string CERTIFICATE to be tolerated in PKCS#7 structures.
6304 Some CAs (e.g. Verisign) distribute certificates in this form.
6307 *) Remove the SSL_ALLOW_ADH compile option and set the default cipher
6308 list to exclude them. This means that no special compilation option
6309 is needed to use anonymous DH: it just needs to be included in the
6313 *) Change the EVP_MD_CTX_type macro so its meaning consistent with
6314 EVP_MD_type. The old functionality is available in a new macro called
6315 EVP_MD_md(). Change code that uses it and update docs.
6318 *) ..._ctrl functions now have corresponding ..._callback_ctrl functions
6319 where the 'void *' argument is replaced by a function pointer argument.
6320 Previously 'void *' was abused to point to functions, which works on
6321 many platforms, but is not correct. As these functions are usually
6322 called by macros defined in OpenSSL header files, most source code
6323 should work without changes.
6326 *) <openssl/opensslconf.h> (which is created by Configure) now contains
6327 sections with information on -D... compiler switches used for
6328 compiling the library so that applications can see them. To enable
6329 one of these sections, a pre-processor symbol OPENSSL_..._DEFINES
6330 must be defined. E.g.,
6331 #define OPENSSL_ALGORITHM_DEFINES
6332 #include <openssl/opensslconf.h>
6333 defines all pertinent NO_<algo> symbols, such as NO_IDEA, NO_RSA, etc.
6334 [Richard Levitte, Ulf and Bodo Möller]
6336 *) Bugfix: Tolerate fragmentation and interleaving in the SSL 3/TLS
6340 *) Change the 'other' type in certificate aux info to a STACK_OF
6341 X509_ALGOR. Although not an AlgorithmIdentifier as such it has
6342 the required ASN1 format: arbitrary types determined by an OID.
6345 *) Add some PEM_write_X509_REQ_NEW() functions and a command line
6346 argument to 'req'. This is not because the function is newer or
6347 better than others it just uses the work 'NEW' in the certificate
6348 request header lines. Some software needs this.
6351 *) Reorganise password command line arguments: now passwords can be
6352 obtained from various sources. Delete the PEM_cb function and make
6353 it the default behaviour: i.e. if the callback is NULL and the
6354 usrdata argument is not NULL interpret it as a null terminated pass
6355 phrase. If usrdata and the callback are NULL then the pass phrase
6356 is prompted for as usual.
6359 *) Add support for the Compaq Atalla crypto accelerator. If it is installed,
6360 the support is automatically enabled. The resulting binaries will
6361 autodetect the card and use it if present.
6362 [Ben Laurie and Compaq Inc.]
6364 *) Work around for Netscape hang bug. This sends certificate request
6365 and server done in one record. Since this is perfectly legal in the
6366 SSL/TLS protocol it isn't a "bug" option and is on by default. See
6367 the bugs/SSLv3 entry for more info.
6370 *) HP-UX tune-up: new unified configs, HP C compiler bug workaround.
6373 *) Add -rand argument to smime and pkcs12 applications and read/write
6377 *) New 'passwd' tool for crypt(3) and apr1 password hashes.
6380 *) Add command line password options to the remaining applications.
6383 *) Bug fix for BN_div_recp() for numerators with an even number of
6387 *) More tests in bntest.c, and changed test_bn output.
6390 *) ./config recognizes MacOS X now.
6393 *) Bug fix for BN_div() when the first words of num and divsor are
6394 equal (it gave wrong results if (rem=(n1-q*d0)&BN_MASK2) < d0).
6397 *) Add support for various broken PKCS#8 formats, and command line
6398 options to produce them.
6401 *) New functions BN_CTX_start(), BN_CTX_get() and BT_CTX_end() to
6402 get temporary BIGNUMs from a BN_CTX.
6405 *) Correct return values in BN_mod_exp_mont() and BN_mod_exp2_mont()
6409 *) Change the SSLeay_add_all_*() functions to OpenSSL_add_all_*() and
6410 include a #define from the old name to the new. The original intent
6411 was that statically linked binaries could for example just call
6412 SSLeay_add_all_ciphers() to just add ciphers to the table and not
6413 link with digests. This never worked becayse SSLeay_add_all_digests()
6414 and SSLeay_add_all_ciphers() were in the same source file so calling
6415 one would link with the other. They are now in separate source files.
6418 *) Add a new -notext option to 'ca' and a -pubkey option to 'spkac'.
6421 *) Use a less unusual form of the Miller-Rabin primality test (it used
6422 a binary algorithm for exponentiation integrated into the Miller-Rabin
6423 loop, our standard modexp algorithms are faster).
6426 *) Support for the EBCDIC character set completed.
6427 [Martin Kraemer <Martin.Kraemer@Mch.SNI.De>]
6429 *) Source code cleanups: use const where appropriate, eliminate casts,
6430 use void * instead of char * in lhash.
6433 *) Bugfix: ssl3_send_server_key_exchange was not restartable
6434 (the state was not changed to SSL3_ST_SW_KEY_EXCH_B, and because of
6435 this the server could overwrite ephemeral keys that the client
6439 *) Turn DSA_is_prime into a macro that calls BN_is_prime,
6440 using 50 iterations of the Rabin-Miller test.
6442 DSA_generate_parameters now uses BN_is_prime_fasttest (with 50
6443 iterations of the Rabin-Miller test as required by the appendix
6444 to FIPS PUB 186[-1]) instead of DSA_is_prime.
6445 As BN_is_prime_fasttest includes trial division, DSA parameter
6446 generation becomes much faster.
6448 This implies a change for the callback functions in DSA_is_prime
6449 and DSA_generate_parameters: The callback function is called once
6450 for each positive witness in the Rabin-Miller test, not just
6451 occasionally in the inner loop; and the parameters to the
6452 callback function now provide an iteration count for the outer
6453 loop rather than for the current invocation of the inner loop.
6454 DSA_generate_parameters additionally can call the callback
6455 function with an 'iteration count' of -1, meaning that a
6456 candidate has passed the trial division test (when q is generated
6457 from an application-provided seed, trial division is skipped).
6460 *) New function BN_is_prime_fasttest that optionally does trial
6461 division before starting the Rabin-Miller test and has
6462 an additional BN_CTX * argument (whereas BN_is_prime always
6463 has to allocate at least one BN_CTX).
6464 'callback(1, -1, cb_arg)' is called when a number has passed the
6465 trial division stage.
6468 *) Fix for bug in CRL encoding. The validity dates weren't being handled
6472 *) New -pkcs12 option to CA.pl script to write out a PKCS#12 file.
6475 *) New function BN_pseudo_rand().
6478 *) Clean up BN_mod_mul_montgomery(): replace the broken (and unreadable)
6479 bignum version of BN_from_montgomery() with the working code from
6480 SSLeay 0.9.0 (the word based version is faster anyway), and clean up
6484 *) Avoid a race condition in s2_clnt.c (function get_server_hello) that
6485 made it impossible to use the same SSL_SESSION data structure in
6486 SSL2 clients in multiple threads.
6489 *) The return value of RAND_load_file() no longer counts bytes obtained
6490 by stat(). RAND_load_file(..., -1) is new and uses the complete file
6491 to seed the PRNG (previously an explicit byte count was required).
6492 [Ulf Möller, Bodo Möller]
6494 *) Clean up CRYPTO_EX_DATA functions, some of these didn't have prototypes
6495 used (char *) instead of (void *) and had casts all over the place.
6498 *) Make BN_generate_prime() return NULL on error if ret!=NULL.
6501 *) Retain source code compatibility for BN_prime_checks macro:
6502 BN_is_prime(..., BN_prime_checks, ...) now uses
6503 BN_prime_checks_for_size to determine the appropriate number of
6504 Rabin-Miller iterations.
6507 *) Diffie-Hellman uses "safe" primes: DH_check() return code renamed to
6508 DH_CHECK_P_NOT_SAFE_PRIME.
6509 (Check if this is true? OpenPGP calls them "strong".)
6512 *) Merge the functionality of "dh" and "gendh" programs into a new program
6513 "dhparam". The old programs are retained for now but will handle DH keys
6514 (instead of parameters) in future.
6517 *) Make the ciphers, s_server and s_client programs check the return values
6518 when a new cipher list is set.
6521 *) Enhance the SSL/TLS cipher mechanism to correctly handle the TLS 56bit
6522 ciphers. Before when the 56bit ciphers were enabled the sorting was
6525 The syntax for the cipher sorting has been extended to support sorting by
6526 cipher-strength (using the strength_bits hard coded in the tables).
6527 The new command is "@STRENGTH" (see also doc/apps/ciphers.pod).
6529 Fix a bug in the cipher-command parser: when supplying a cipher command
6530 string with an "undefined" symbol (neither command nor alphanumeric
6531 [A-Za-z0-9], ssl_set_cipher_list used to hang in an endless loop. Now
6532 an error is flagged.
6534 Due to the strength-sorting extension, the code of the
6535 ssl_create_cipher_list() function was completely rearranged. I hope that
6536 the readability was also increased :-)
6537 [Lutz Jaenicke <Lutz.Jaenicke@aet.TU-Cottbus.DE>]
6539 *) Minor change to 'x509' utility. The -CAcreateserial option now uses 1
6540 for the first serial number and places 2 in the serial number file. This
6541 avoids problems when the root CA is created with serial number zero and
6542 the first user certificate has the same issuer name and serial number
6546 *) Fixes to X509_ATTRIBUTE utilities, change the 'req' program so it uses
6547 the new code. Add documentation for this stuff.
6550 *) Changes to X509_ATTRIBUTE utilities. These have been renamed from
6551 X509_*() to X509at_*() on the grounds that they don't handle X509
6552 structures and behave in an analagous way to the X509v3 functions:
6553 they shouldn't be called directly but wrapper functions should be used
6556 So we also now have some wrapper functions that call the X509at functions
6557 when passed certificate requests. (TO DO: similar things can be done with
6558 PKCS#7 signed and unsigned attributes, PKCS#12 attributes and a few other
6559 things. Some of these need some d2i or i2d and print functionality
6560 because they handle more complex structures.)
6563 *) Add missing #ifndefs that caused missing symbols when building libssl
6564 as a shared library without RSA. Use #ifndef NO_SSL2 instead of
6565 NO_RSA in ssl/s2*.c.
6566 [Kris Kennaway <kris@hub.freebsd.org>, modified by Ulf Möller]
6568 *) Precautions against using the PRNG uninitialized: RAND_bytes() now
6569 has a return value which indicates the quality of the random data
6570 (1 = ok, 0 = not seeded). Also an error is recorded on the thread's
6571 error queue. New function RAND_pseudo_bytes() generates output that is
6572 guaranteed to be unique but not unpredictable. RAND_add is like
6573 RAND_seed, but takes an extra argument for an entropy estimate
6574 (RAND_seed always assumes full entropy).
6577 *) Do more iterations of Rabin-Miller probable prime test (specifically,
6578 3 for 1024-bit primes, 6 for 512-bit primes, 12 for 256-bit primes
6579 instead of only 2 for all lengths; see BN_prime_checks_for_size definition
6580 in crypto/bn/bn_prime.c for the complete table). This guarantees a
6581 false-positive rate of at most 2^-80 for random input.
6584 *) Rewrite ssl3_read_n (ssl/s3_pkt.c) avoiding a couple of bugs.
6587 *) New function X509_CTX_rget_chain() (renamed to X509_CTX_get1_chain
6588 in the 0.9.5 release), this returns the chain
6589 from an X509_CTX structure with a dup of the stack and all
6590 the X509 reference counts upped: so the stack will exist
6591 after X509_CTX_cleanup() has been called. Modify pkcs12.c
6594 Also make SSL_SESSION_print() print out the verify return
6598 *) Add manpage for the pkcs12 command. Also change the default
6599 behaviour so MAC iteration counts are used unless the new
6600 -nomaciter option is used. This improves file security and
6601 only older versions of MSIE (4.0 for example) need it.
6604 *) Honor the no-xxx Configure options when creating .DEF files.
6607 *) Add PKCS#10 attributes to field table: challengePassword,
6608 unstructuredName and unstructuredAddress. These are taken from
6609 draft PKCS#9 v2.0 but are compatible with v1.2 provided no
6610 international characters are used.
6612 More changes to X509_ATTRIBUTE code: allow the setting of types
6613 based on strings. Remove the 'loc' parameter when adding
6614 attributes because these will be a SET OF encoding which is sorted
6618 *) Initial changes to the 'req' utility to allow request generation
6619 automation. This will allow an application to just generate a template
6620 file containing all the field values and have req construct the
6623 Initial support for X509_ATTRIBUTE handling. Stacks of these are
6624 used all over the place including certificate requests and PKCS#7
6625 structures. They are currently handled manually where necessary with
6626 some primitive wrappers for PKCS#7. The new functions behave in a
6627 manner analogous to the X509 extension functions: they allow
6628 attributes to be looked up by NID and added.
6630 Later something similar to the X509V3 code would be desirable to
6631 automatically handle the encoding, decoding and printing of the
6632 more complex types. The string types like challengePassword can
6633 be handled by the string table functions.
6635 Also modified the multi byte string table handling. Now there is
6636 a 'global mask' which masks out certain types. The table itself
6637 can use the flag STABLE_NO_MASK to ignore the mask setting: this
6638 is useful when for example there is only one permissible type
6639 (as in countryName) and using the mask might result in no valid
6643 *) Clean up 'Finished' handling, and add functions SSL_get_finished and
6644 SSL_get_peer_finished to allow applications to obtain the latest
6645 Finished messages sent to the peer or expected from the peer,
6646 respectively. (SSL_get_peer_finished is usually the Finished message
6647 actually received from the peer, otherwise the protocol will be aborted.)
6649 As the Finished message are message digests of the complete handshake
6650 (with a total of 192 bits for TLS 1.0 and more for SSL 3.0), they can
6651 be used for external authentication procedures when the authentication
6652 provided by SSL/TLS is not desired or is not enough.
6655 *) Enhanced support for Alpha Linux is added. Now ./config checks if
6656 the host supports BWX extension and if Compaq C is present on the
6657 $PATH. Just exploiting of the BWX extension results in 20-30%
6658 performance kick for some algorithms, e.g. DES and RC4 to mention
6659 a couple. Compaq C in turn generates ~20% faster code for MD5 and
6663 *) Add support for MS "fast SGC". This is arguably a violation of the
6664 SSL3/TLS protocol. Netscape SGC does two handshakes: the first with
6665 weak crypto and after checking the certificate is SGC a second one
6666 with strong crypto. MS SGC stops the first handshake after receiving
6667 the server certificate message and sends a second client hello. Since
6668 a server will typically do all the time consuming operations before
6669 expecting any further messages from the client (server key exchange
6670 is the most expensive) there is little difference between the two.
6672 To get OpenSSL to support MS SGC we have to permit a second client
6673 hello message after we have sent server done. In addition we have to
6674 reset the MAC if we do get this second client hello.
6677 *) Add a function 'd2i_AutoPrivateKey()' this will automatically decide
6678 if a DER encoded private key is RSA or DSA traditional format. Changed
6679 d2i_PrivateKey_bio() to use it. This is only needed for the "traditional"
6680 format DER encoded private key. Newer code should use PKCS#8 format which
6681 has the key type encoded in the ASN1 structure. Added DER private key
6682 support to pkcs8 application.
6685 *) SSL 3/TLS 1 servers now don't request certificates when an anonymous
6686 ciphersuites has been selected (as required by the SSL 3/TLS 1
6687 specifications). Exception: When SSL_VERIFY_FAIL_IF_NO_PEER_CERT
6688 is set, we interpret this as a request to violate the specification
6689 (the worst that can happen is a handshake failure, and 'correct'
6690 behaviour would result in a handshake failure anyway).
6693 *) In SSL_CTX_add_session, take into account that there might be multiple
6694 SSL_SESSION structures with the same session ID (e.g. when two threads
6695 concurrently obtain them from an external cache).
6696 The internal cache can handle only one SSL_SESSION with a given ID,
6697 so if there's a conflict, we now throw out the old one to achieve
6701 *) Add OIDs for idea and blowfish in CBC mode. This will allow both
6702 to be used in PKCS#5 v2.0 and S/MIME. Also add checking to
6703 some routines that use cipher OIDs: some ciphers do not have OIDs
6704 defined and so they cannot be used for S/MIME and PKCS#5 v2.0 for
6708 *) Simplify the trust setting structure and code. Now we just have
6709 two sequences of OIDs for trusted and rejected settings. These will
6710 typically have values the same as the extended key usage extension
6711 and any application specific purposes.
6713 The trust checking code now has a default behaviour: it will just
6714 check for an object with the same NID as the passed id. Functions can
6715 be provided to override either the default behaviour or the behaviour
6716 for a given id. SSL client, server and email already have functions
6717 in place for compatibility: they check the NID and also return "trusted"
6718 if the certificate is self signed.
6721 *) Add d2i,i2d bio/fp functions for PrivateKey: these convert the
6722 traditional format into an EVP_PKEY structure.
6725 *) Add a password callback function PEM_cb() which either prompts for
6726 a password if usr_data is NULL or otherwise assumes it is a null
6727 terminated password. Allow passwords to be passed on command line
6728 environment or config files in a few more utilities.
6731 *) Add a bunch of DER and PEM functions to handle PKCS#8 format private
6732 keys. Add some short names for PKCS#8 PBE algorithms and allow them
6733 to be specified on the command line for the pkcs8 and pkcs12 utilities.
6734 Update documentation.
6737 *) Support for ASN1 "NULL" type. This could be handled before by using
6738 ASN1_TYPE but there wasn't any function that would try to read a NULL
6739 and produce an error if it couldn't. For compatibility we also have
6740 ASN1_NULL_new() and ASN1_NULL_free() functions but these are faked and
6741 don't allocate anything because they don't need to.
6744 *) Initial support for MacOS is now provided. Examine INSTALL.MacOS
6746 [Andy Polyakov, Roy Woods <roy@centicsystems.ca>]
6748 *) Rebuild of the memory allocation routines used by OpenSSL code and
6749 possibly others as well. The purpose is to make an interface that
6750 provide hooks so anyone can build a separate set of allocation and
6751 deallocation routines to be used by OpenSSL, for example memory
6752 pool implementations, or something else, which was previously hard
6753 since Malloc(), Realloc() and Free() were defined as macros having
6754 the values malloc, realloc and free, respectively (except for Win32
6755 compilations). The same is provided for memory debugging code.
6756 OpenSSL already comes with functionality to find memory leaks, but
6757 this gives people a chance to debug other memory problems.
6759 With these changes, a new set of functions and macros have appeared:
6761 CRYPTO_set_mem_debug_functions() [F]
6762 CRYPTO_get_mem_debug_functions() [F]
6763 CRYPTO_dbg_set_options() [F]
6764 CRYPTO_dbg_get_options() [F]
6765 CRYPTO_malloc_debug_init() [M]
6767 The memory debug functions are NULL by default, unless the library
6768 is compiled with CRYPTO_MDEBUG or friends is defined. If someone
6769 wants to debug memory anyway, CRYPTO_malloc_debug_init() (which
6770 gives the standard debugging functions that come with OpenSSL) or
6771 CRYPTO_set_mem_debug_functions() (tells OpenSSL to use functions
6772 provided by the library user) must be used. When the standard
6773 debugging functions are used, CRYPTO_dbg_set_options can be used to
6774 request additional information:
6775 CRYPTO_dbg_set_options(V_CYRPTO_MDEBUG_xxx) corresponds to setting
6776 the CRYPTO_MDEBUG_xxx macro when compiling the library.
6778 Also, things like CRYPTO_set_mem_functions will always give the
6779 expected result (the new set of functions is used for allocation
6780 and deallocation) at all times, regardless of platform and compiler
6783 To finish it up, some functions that were never use in any other
6784 way than through macros have a new API and new semantic:
6787 CRYPTO_dbg_realloc()
6790 All macros of value have retained their old syntax.
6791 [Richard Levitte and Bodo Moeller]
6793 *) Some S/MIME fixes. The OID for SMIMECapabilities was wrong, the
6794 ordering of SMIMECapabilities wasn't in "strength order" and there
6795 was a missing NULL in the AlgorithmIdentifier for the SHA1 signature
6799 *) Some ASN1 types with illegal zero length encoding (INTEGER,
6800 ENUMERATED and OBJECT IDENTIFIER) choked the ASN1 routines.
6801 [Frans Heymans <fheymans@isaserver.be>, modified by Steve Henson]
6803 *) Merge in my S/MIME library for OpenSSL. This provides a simple
6804 S/MIME API on top of the PKCS#7 code, a MIME parser (with enough
6805 functionality to handle multipart/signed properly) and a utility
6806 called 'smime' to call all this stuff. This is based on code I
6807 originally wrote for Celo who have kindly allowed it to be
6808 included in OpenSSL.
6811 *) Add variants des_set_key_checked and des_set_key_unchecked of
6812 des_set_key (aka des_key_sched). Global variable des_check_key
6813 decides which of these is called by des_set_key; this way
6814 des_check_key behaves as it always did, but applications and
6815 the library itself, which was buggy for des_check_key == 1,
6816 have a cleaner way to pick the version they need.
6819 *) New function PKCS12_newpass() which changes the password of a
6823 *) Modify X509_TRUST and X509_PURPOSE so it also uses a static and
6824 dynamic mix. In both cases the ids can be used as an index into the
6825 table. Also modified the X509_TRUST_add() and X509_PURPOSE_add()
6826 functions so they accept a list of the field values and the
6827 application doesn't need to directly manipulate the X509_TRUST
6831 *) Modify the ASN1_STRING_TABLE stuff so it also uses bsearch and doesn't
6835 *) Modify the way the V3 extension code looks up extensions. This now
6836 works in a similar way to the object code: we have some "standard"
6837 extensions in a static table which is searched with OBJ_bsearch()
6838 and the application can add dynamic ones if needed. The file
6839 crypto/x509v3/ext_dat.h now has the info: this file needs to be
6840 updated whenever a new extension is added to the core code and kept
6841 in ext_nid order. There is a simple program 'tabtest.c' which checks
6842 this. New extensions are not added too often so this file can readily
6843 be maintained manually.
6845 There are two big advantages in doing things this way. The extensions
6846 can be looked up immediately and no longer need to be "added" using
6847 X509V3_add_standard_extensions(): this function now does nothing.
6848 [Side note: I get *lots* of email saying the extension code doesn't
6849 work because people forget to call this function]
6850 Also no dynamic allocation is done unless new extensions are added:
6851 so if we don't add custom extensions there is no need to call
6852 X509V3_EXT_cleanup().
6855 *) Modify enc utility's salting as follows: make salting the default. Add a
6856 magic header, so unsalted files fail gracefully instead of just decrypting
6857 to garbage. This is because not salting is a big security hole, so people
6858 should be discouraged from doing it.
6861 *) Fixes and enhancements to the 'x509' utility. It allowed a message
6862 digest to be passed on the command line but it only used this
6863 parameter when signing a certificate. Modified so all relevant
6864 operations are affected by the digest parameter including the
6865 -fingerprint and -x509toreq options. Also -x509toreq choked if a
6866 DSA key was used because it didn't fix the digest.
6869 *) Initial certificate chain verify code. Currently tests the untrusted
6870 certificates for consistency with the verify purpose (which is set
6871 when the X509_STORE_CTX structure is set up) and checks the pathlength.
6873 There is a NO_CHAIN_VERIFY compilation option to keep the old behaviour:
6874 this is because it will reject chains with invalid extensions whereas
6875 every previous version of OpenSSL and SSLeay made no checks at all.
6877 Trust code: checks the root CA for the relevant trust settings. Trust
6878 settings have an initial value consistent with the verify purpose: e.g.
6879 if the verify purpose is for SSL client use it expects the CA to be
6880 trusted for SSL client use. However the default value can be changed to
6881 permit custom trust settings: one example of this would be to only trust
6882 certificates from a specific "secure" set of CAs.
6884 Also added X509_STORE_CTX_new() and X509_STORE_CTX_free() functions
6885 which should be used for version portability: especially since the
6886 verify structure is likely to change more often now.
6888 SSL integration. Add purpose and trust to SSL_CTX and SSL and functions
6889 to set them. If not set then assume SSL clients will verify SSL servers
6892 Two new options to the verify program: -untrusted allows a set of
6893 untrusted certificates to be passed in and -purpose which sets the
6894 intended purpose of the certificate. If a purpose is set then the
6895 new chain verify code is used to check extension consistency.
6898 *) Support for the authority information access extension.
6901 *) Modify RSA and DSA PEM read routines to transparently handle
6902 PKCS#8 format private keys. New *_PUBKEY_* functions that handle
6903 public keys in a format compatible with certificate
6904 SubjectPublicKeyInfo structures. Unfortunately there were already
6905 functions called *_PublicKey_* which used various odd formats so
6906 these are retained for compatibility: however the DSA variants were
6907 never in a public release so they have been deleted. Changed dsa/rsa
6908 utilities to handle the new format: note no releases ever handled public
6909 keys so we should be OK.
6911 The primary motivation for this change is to avoid the same fiasco
6912 that dogs private keys: there are several incompatible private key
6913 formats some of which are standard and some OpenSSL specific and
6914 require various evil hacks to allow partial transparent handling and
6915 even then it doesn't work with DER formats. Given the option anything
6916 other than PKCS#8 should be dumped: but the other formats have to
6917 stay in the name of compatibility.
6919 With public keys and the benefit of hindsight one standard format
6920 is used which works with EVP_PKEY, RSA or DSA structures: though
6921 it clearly returns an error if you try to read the wrong kind of key.
6923 Added a -pubkey option to the 'x509' utility to output the public key.
6924 Also rename the EVP_PKEY_get_*() to EVP_PKEY_rget_*()
6925 (renamed to EVP_PKEY_get1_*() in the OpenSSL 0.9.5 release) and add
6926 EVP_PKEY_rset_*() functions (renamed to EVP_PKEY_set1_*())
6927 that do the same as the EVP_PKEY_assign_*() except they up the
6928 reference count of the added key (they don't "swallow" the
6932 *) Fixes to crypto/x509/by_file.c the code to read in certificates and
6933 CRLs would fail if the file contained no certificates or no CRLs:
6934 added a new function to read in both types and return the number
6935 read: this means that if none are read it will be an error. The
6936 DER versions of the certificate and CRL reader would always fail
6937 because it isn't possible to mix certificates and CRLs in DER format
6938 without choking one or the other routine. Changed this to just read
6939 a certificate: this is the best we can do. Also modified the code
6940 in apps/verify.c to take notice of return codes: it was previously
6941 attempting to read in certificates from NULL pointers and ignoring
6942 any errors: this is one reason why the cert and CRL reader seemed
6943 to work. It doesn't check return codes from the default certificate
6944 routines: these may well fail if the certificates aren't installed.
6947 *) Code to support otherName option in GeneralName.
6950 *) First update to verify code. Change the verify utility
6951 so it warns if it is passed a self signed certificate:
6952 for consistency with the normal behaviour. X509_verify
6953 has been modified to it will now verify a self signed
6954 certificate if *exactly* the same certificate appears
6955 in the store: it was previously impossible to trust a
6956 single self signed certificate. This means that:
6957 openssl verify ss.pem
6958 now gives a warning about a self signed certificate but
6959 openssl verify -CAfile ss.pem ss.pem
6963 *) For servers, store verify_result in SSL_SESSION data structure
6964 (and add it to external session representation).
6965 This is needed when client certificate verifications fails,
6966 but an application-provided verification callback (set by
6967 SSL_CTX_set_cert_verify_callback) allows accepting the session
6968 anyway (i.e. leaves x509_store_ctx->error != X509_V_OK
6969 but returns 1): When the session is reused, we have to set
6970 ssl->verify_result to the appropriate error code to avoid
6972 [Bodo Moeller, problem pointed out by Lutz Jaenicke]
6974 *) Fix a bug in the new PKCS#7 code: it didn't consider the
6975 case in PKCS7_dataInit() where the signed PKCS7 structure
6976 didn't contain any existing data because it was being created.
6977 [Po-Cheng Chen <pocheng@nst.com.tw>, slightly modified by Steve Henson]
6979 *) Add a salt to the key derivation routines in enc.c. This
6980 forms the first 8 bytes of the encrypted file. Also add a
6981 -S option to allow a salt to be input on the command line.
6984 *) New function X509_cmp(). Oddly enough there wasn't a function
6985 to compare two certificates. We do this by working out the SHA1
6986 hash and comparing that. X509_cmp() will be needed by the trust
6990 *) SSL_get1_session() is like SSL_get_session(), but increments
6991 the reference count in the SSL_SESSION returned.
6992 [Geoff Thorpe <geoff@eu.c2.net>]
6994 *) Fix for 'req': it was adding a null to request attributes.
6995 Also change the X509_LOOKUP and X509_INFO code to handle
6996 certificate auxiliary information.
6999 *) Add support for 40 and 64 bit RC2 and RC4 algorithms: document
7003 *) Add the possibility to add extra information to the memory leak
7004 detecting output, to form tracebacks, showing from where each
7005 allocation was originated: CRYPTO_push_info("constant string") adds
7006 the string plus current file name and line number to a per-thread
7007 stack, CRYPTO_pop_info() does the obvious, CRYPTO_remove_all_info()
7008 is like calling CYRPTO_pop_info() until the stack is empty.
7009 Also updated memory leak detection code to be multi-thread-safe.
7012 *) Add options -text and -noout to pkcs7 utility and delete the
7013 encryption options which never did anything. Update docs.
7016 *) Add options to some of the utilities to allow the pass phrase
7017 to be included on either the command line (not recommended on
7018 OSes like Unix) or read from the environment. Update the
7019 manpages and fix a few bugs.
7022 *) Add a few manpages for some of the openssl commands.
7025 *) Fix the -revoke option in ca. It was freeing up memory twice,
7026 leaking and not finding already revoked certificates.
7029 *) Extensive changes to support certificate auxiliary information.
7030 This involves the use of X509_CERT_AUX structure and X509_AUX
7031 functions. An X509_AUX function such as PEM_read_X509_AUX()
7032 can still read in a certificate file in the usual way but it
7033 will also read in any additional "auxiliary information". By
7034 doing things this way a fair degree of compatibility can be
7035 retained: existing certificates can have this information added
7036 using the new 'x509' options.
7038 Current auxiliary information includes an "alias" and some trust
7039 settings. The trust settings will ultimately be used in enhanced
7040 certificate chain verification routines: currently a certificate
7041 can only be trusted if it is self signed and then it is trusted
7045 *) Fix assembler for Alpha (tested only on DEC OSF not Linux or *BSD).
7046 The problem was that one of the replacement routines had not been working
7047 since SSLeay releases. For now the offending routine has been replaced
7048 with non-optimised assembler. Even so, this now gives around 95%
7049 performance improvement for 1024 bit RSA signs.
7052 *) Hack to fix PKCS#7 decryption when used with some unorthodox RC2
7053 handling. Most clients have the effective key size in bits equal to
7054 the key length in bits: so a 40 bit RC2 key uses a 40 bit (5 byte) key.
7055 A few however don't do this and instead use the size of the decrypted key
7056 to determine the RC2 key length and the AlgorithmIdentifier to determine
7057 the effective key length. In this case the effective key length can still
7058 be 40 bits but the key length can be 168 bits for example. This is fixed
7059 by manually forcing an RC2 key into the EVP_PKEY structure because the
7060 EVP code can't currently handle unusual RC2 key sizes: it always assumes
7061 the key length and effective key length are equal.
7064 *) Add a bunch of functions that should simplify the creation of
7065 X509_NAME structures. Now you should be able to do:
7066 X509_NAME_add_entry_by_txt(nm, "CN", MBSTRING_ASC, "Steve", -1, -1, 0);
7067 and have it automatically work out the correct field type and fill in
7068 the structures. The more adventurous can try:
7069 X509_NAME_add_entry_by_txt(nm, field, MBSTRING_UTF8, str, -1, -1, 0);
7070 and it will (hopefully) work out the correct multibyte encoding.
7073 *) Change the 'req' utility to use the new field handling and multibyte
7074 copy routines. Before the DN field creation was handled in an ad hoc
7075 way in req, ca, and x509 which was rather broken and didn't support
7076 BMPStrings or UTF8Strings. Since some software doesn't implement
7077 BMPStrings or UTF8Strings yet, they can be enabled using the config file
7078 using the dirstring_type option. See the new comment in the default
7079 openssl.cnf for more info.
7082 *) Make crypto/rand/md_rand.c more robust:
7083 - Assure unique random numbers after fork().
7084 - Make sure that concurrent threads access the global counter and
7085 md serializably so that we never lose entropy in them
7086 or use exactly the same state in multiple threads.
7087 Access to the large state is not always serializable because
7088 the additional locking could be a performance killer, and
7089 md should be large enough anyway.
7092 *) New file apps/app_rand.c with commonly needed functionality
7093 for handling the random seed file.
7095 Use the random seed file in some applications that previously did not:
7097 dsaparam -genkey (which also ignored its '-rand' option),
7100 x509 (when signing).
7101 Except on systems with /dev/urandom, it is crucial to have a random
7102 seed file at least for key creation, DSA signing, and for DH exchanges;
7103 for RSA signatures we could do without one.
7105 gendh and gendsa (unlike genrsa) used to read only the first byte
7106 of each file listed in the '-rand' option. The function as previously
7107 found in genrsa is now in app_rand.c and is used by all programs
7108 that support '-rand'.
7111 *) In RAND_write_file, use mode 0600 for creating files;
7112 don't just chmod when it may be too late.
7115 *) Report an error from X509_STORE_load_locations
7116 when X509_LOOKUP_load_file or X509_LOOKUP_add_dir failed.
7119 *) New function ASN1_mbstring_copy() this copies a string in either
7120 ASCII, Unicode, Universal (4 bytes per character) or UTF8 format
7121 into an ASN1_STRING type. A mask of permissible types is passed
7122 and it chooses the "minimal" type to use or an error if not type
7126 *) Add function equivalents to the various macros in asn1.h. The old
7127 macros are retained with an M_ prefix. Code inside the library can
7128 use the M_ macros. External code (including the openssl utility)
7129 should *NOT* in order to be "shared library friendly".
7132 *) Add various functions that can check a certificate's extensions
7133 to see if it usable for various purposes such as SSL client,
7134 server or S/MIME and CAs of these types. This is currently
7135 VERY EXPERIMENTAL but will ultimately be used for certificate chain
7136 verification. Also added a -purpose flag to x509 utility to
7137 print out all the purposes.
7140 *) Add a CRYPTO_EX_DATA to X509 certificate structure and associated
7144 *) New X509V3_{X509,CRL,REVOKED}_get_d2i() functions. These will search
7145 for, obtain and decode and extension and obtain its critical flag.
7146 This allows all the necessary extension code to be handled in a
7147 single function call.
7150 *) RC4 tune-up featuring 30-40% performance improvement on most RISC
7151 platforms. See crypto/rc4/rc4_enc.c for further details.
7154 *) New -noout option to asn1parse. This causes no output to be produced
7155 its main use is when combined with -strparse and -out to extract data
7156 from a file (which may not be in ASN.1 format).
7159 *) Fix for pkcs12 program. It was hashing an invalid certificate pointer
7160 when producing the local key id.
7161 [Richard Levitte <levitte@stacken.kth.se>]
7163 *) New option -dhparam in s_server. This allows a DH parameter file to be
7164 stated explicitly. If it is not stated then it tries the first server
7165 certificate file. The previous behaviour hard coded the filename
7169 *) Add -pubin and -pubout options to the rsa and dsa commands. These allow
7170 a public key to be input or output. For example:
7171 openssl rsa -in key.pem -pubout -out pubkey.pem
7172 Also added necessary DSA public key functions to handle this.
7175 *) Fix so PKCS7_dataVerify() doesn't crash if no certificates are contained
7176 in the message. This was handled by allowing
7177 X509_find_by_issuer_and_serial() to tolerate a NULL passed to it.
7178 [Steve Henson, reported by Sampo Kellomaki <sampo@mail.neuronio.pt>]
7180 *) Fix for bug in d2i_ASN1_bytes(): other ASN1 functions add an extra null
7181 to the end of the strings whereas this didn't. This would cause problems
7182 if strings read with d2i_ASN1_bytes() were later modified.
7183 [Steve Henson, reported by Arne Ansper <arne@ats.cyber.ee>]
7185 *) Fix for base64 decode bug. When a base64 bio reads only one line of
7186 data and it contains EOF it will end up returning an error. This is
7187 caused by input 46 bytes long. The cause is due to the way base64
7188 BIOs find the start of base64 encoded data. They do this by trying a
7189 trial decode on each line until they find one that works. When they
7190 do a flag is set and it starts again knowing it can pass all the
7191 data directly through the decoder. Unfortunately it doesn't reset
7192 the context it uses. This means that if EOF is reached an attempt
7193 is made to pass two EOFs through the context and this causes the
7194 resulting error. This can also cause other problems as well. As is
7195 usual with these problems it takes *ages* to find and the fix is
7196 trivial: move one line.
7197 [Steve Henson, reported by ian@uns.ns.ac.yu (Ivan Nejgebauer) ]
7199 *) Ugly workaround to get s_client and s_server working under Windows. The
7200 old code wouldn't work because it needed to select() on sockets and the
7201 tty (for keypresses and to see if data could be written). Win32 only
7202 supports select() on sockets so we select() with a 1s timeout on the
7203 sockets and then see if any characters are waiting to be read, if none
7204 are present then we retry, we also assume we can always write data to
7205 the tty. This isn't nice because the code then blocks until we've
7206 received a complete line of data and it is effectively polling the
7207 keyboard at 1s intervals: however it's quite a bit better than not
7208 working at all :-) A dedicated Windows application might handle this
7209 with an event loop for example.
7212 *) Enhance RSA_METHOD structure. Now there are two extra methods, rsa_sign
7213 and rsa_verify. When the RSA_FLAGS_SIGN_VER option is set these functions
7214 will be called when RSA_sign() and RSA_verify() are used. This is useful
7215 if rsa_pub_dec() and rsa_priv_enc() equivalents are not available.
7216 For this to work properly RSA_public_decrypt() and RSA_private_encrypt()
7217 should *not* be used: RSA_sign() and RSA_verify() must be used instead.
7218 This necessitated the support of an extra signature type NID_md5_sha1
7219 for SSL signatures and modifications to the SSL library to use it instead
7220 of calling RSA_public_decrypt() and RSA_private_encrypt().
7223 *) Add new -verify -CAfile and -CApath options to the crl program, these
7224 will lookup a CRL issuers certificate and verify the signature in a
7225 similar way to the verify program. Tidy up the crl program so it
7226 no longer accesses structures directly. Make the ASN1 CRL parsing a bit
7227 less strict. It will now permit CRL extensions even if it is not
7228 a V2 CRL: this will allow it to tolerate some broken CRLs.
7231 *) Initialize all non-automatic variables each time one of the openssl
7232 sub-programs is started (this is necessary as they may be started
7233 multiple times from the "OpenSSL>" prompt).
7234 [Lennart Bang, Bodo Moeller]
7236 *) Preliminary compilation option RSA_NULL which disables RSA crypto without
7237 removing all other RSA functionality (this is what NO_RSA does). This
7238 is so (for example) those in the US can disable those operations covered
7239 by the RSA patent while allowing storage and parsing of RSA keys and RSA
7243 *) Non-copying interface to BIO pairs.
7244 (still largely untested)
7247 *) New function ANS1_tag2str() to convert an ASN1 tag to a descriptive
7248 ASCII string. This was handled independently in various places before.
7251 *) New functions UTF8_getc() and UTF8_putc() that parse and generate
7252 UTF8 strings a character at a time.
7255 *) Use client_version from client hello to select the protocol
7256 (s23_srvr.c) and for RSA client key exchange verification
7257 (s3_srvr.c), as required by the SSL 3.0/TLS 1.0 specifications.
7260 *) Add various utility functions to handle SPKACs, these were previously
7261 handled by poking round in the structure internals. Added new function
7262 NETSCAPE_SPKI_print() to print out SPKAC and a new utility 'spkac' to
7263 print, verify and generate SPKACs. Based on an original idea from
7264 Massimiliano Pala <madwolf@comune.modena.it> but extensively modified.
7267 *) RIPEMD160 is operational on all platforms and is back in 'make test'.
7270 *) Allow the config file extension section to be overwritten on the
7271 command line. Based on an original idea from Massimiliano Pala
7272 <madwolf@comune.modena.it>. The new option is called -extensions
7273 and can be applied to ca, req and x509. Also -reqexts to override
7274 the request extensions in req and -crlexts to override the crl extensions
7278 *) Add new feature to the SPKAC handling in ca. Now you can include
7279 the same field multiple times by preceding it by "XXXX." for example:
7282 this is the same syntax as used in the req config file.
7285 *) Allow certificate extensions to be added to certificate requests. These
7286 are specified in a 'req_extensions' option of the req section of the
7287 config file. They can be printed out with the -text option to req but
7288 are otherwise ignored at present.
7291 *) Fix a horrible bug in enc_read() in crypto/evp/bio_enc.c: if the first
7292 data read consists of only the final block it would not decrypted because
7293 EVP_CipherUpdate() would correctly report zero bytes had been decrypted.
7294 A misplaced 'break' also meant the decrypted final block might not be
7295 copied until the next read.
7298 *) Initial support for DH_METHOD. Again based on RSA_METHOD. Also added
7299 a few extra parameters to the DH structure: these will be useful if
7300 for example we want the value of 'q' or implement X9.42 DH.
7303 *) Initial support for DSA_METHOD. This is based on the RSA_METHOD and
7304 provides hooks that allow the default DSA functions or functions on a
7305 "per key" basis to be replaced. This allows hardware acceleration and
7306 hardware key storage to be handled without major modification to the
7307 library. Also added low level modexp hooks and CRYPTO_EX structure and
7308 associated functions.
7311 *) Add a new flag to memory BIOs, BIO_FLAG_MEM_RDONLY. This marks the BIO
7312 as "read only": it can't be written to and the buffer it points to will
7313 not be freed. Reading from a read only BIO is much more efficient than
7314 a normal memory BIO. This was added because there are several times when
7315 an area of memory needs to be read from a BIO. The previous method was
7316 to create a memory BIO and write the data to it, this results in two
7317 copies of the data and an O(n^2) reading algorithm. There is a new
7318 function BIO_new_mem_buf() which creates a read only memory BIO from
7319 an area of memory. Also modified the PKCS#7 routines to use read only
7323 *) Bugfix: ssl23_get_client_hello did not work properly when called in
7324 state SSL23_ST_SR_CLNT_HELLO_B, i.e. when the first 7 bytes of
7325 a SSLv2-compatible client hello for SSLv3 or TLSv1 could be read,
7326 but a retry condition occured while trying to read the rest.
7329 *) The PKCS7_ENC_CONTENT_new() function was setting the content type as
7330 NID_pkcs7_encrypted by default: this was wrong since this should almost
7331 always be NID_pkcs7_data. Also modified the PKCS7_set_type() to handle
7332 the encrypted data type: this is a more sensible place to put it and it
7333 allows the PKCS#12 code to be tidied up that duplicated this
7337 *) Changed obj_dat.pl script so it takes its input and output files on
7338 the command line. This should avoid shell escape redirection problems
7342 *) Initial support for certificate extension requests, these are included
7343 in things like Xenroll certificate requests. Included functions to allow
7344 extensions to be obtained and added.
7347 *) -crlf option to s_client and s_server for sending newlines as
7348 CRLF (as required by many protocols).
7351 Changes between 0.9.3a and 0.9.4 [09 Aug 1999]
7353 *) Install libRSAglue.a when OpenSSL is built with RSAref.
7354 [Ralf S. Engelschall]
7356 *) A few more ``#ifndef NO_FP_API / #endif'' pairs for consistency.
7357 [Andrija Antonijevic <TheAntony2@bigfoot.com>]
7359 *) Fix -startdate and -enddate (which was missing) arguments to 'ca'
7363 *) New function DSA_dup_DH, which duplicates DSA parameters/keys as
7364 DH parameters/keys (q is lost during that conversion, but the resulting
7365 DH parameters contain its length).
7367 For 1024-bit p, DSA_generate_parameters followed by DSA_dup_DH is
7368 much faster than DH_generate_parameters (which creates parameters
7369 where p = 2*q + 1), and also the smaller q makes DH computations
7370 much more efficient (160-bit exponentiation instead of 1024-bit
7371 exponentiation); so this provides a convenient way to support DHE
7372 ciphersuites in SSL/TLS servers (see ssl/ssltest.c). It is of
7373 utter importance to use
7374 SSL_CTX_set_options(s_ctx, SSL_OP_SINGLE_DH_USE);
7376 SSL_set_options(s_ctx, SSL_OP_SINGLE_DH_USE);
7377 when such DH parameters are used, because otherwise small subgroup
7378 attacks may become possible!
7381 *) Avoid memory leak in i2d_DHparams.
7384 *) Allow the -k option to be used more than once in the enc program:
7385 this allows the same encrypted message to be read by multiple recipients.
7388 *) New function OBJ_obj2txt(buf, buf_len, a, no_name), this converts
7389 an ASN1_OBJECT to a text string. If the "no_name" parameter is set then
7390 it will always use the numerical form of the OID, even if it has a short
7394 *) Added an extra RSA flag: RSA_FLAG_EXT_PKEY. Previously the rsa_mod_exp
7395 method only got called if p,q,dmp1,dmq1,iqmp components were present,
7396 otherwise bn_mod_exp was called. In the case of hardware keys for example
7397 no private key components need be present and it might store extra data
7398 in the RSA structure, which cannot be accessed from bn_mod_exp.
7399 By setting RSA_FLAG_EXT_PKEY rsa_mod_exp will always be called for
7400 private key operations.
7403 *) Added support for SPARC Linux.
7406 *) pem_password_cb function type incompatibly changed from
7407 typedef int pem_password_cb(char *buf, int size, int rwflag);
7409 ....(char *buf, int size, int rwflag, void *userdata);
7410 so that applications can pass data to their callbacks:
7411 The PEM[_ASN1]_{read,write}... functions and macros now take an
7412 additional void * argument, which is just handed through whenever
7413 the password callback is called.
7414 [Damien Miller <dmiller@ilogic.com.au>; tiny changes by Bodo Moeller]
7416 New function SSL_CTX_set_default_passwd_cb_userdata.
7418 Compatibility note: As many C implementations push function arguments
7419 onto the stack in reverse order, the new library version is likely to
7420 interoperate with programs that have been compiled with the old
7421 pem_password_cb definition (PEM_whatever takes some data that
7422 happens to be on the stack as its last argument, and the callback
7423 just ignores this garbage); but there is no guarantee whatsoever that
7426 *) The -DPLATFORM="\"$(PLATFORM)\"" definition and the similar -DCFLAGS=...
7427 (both in crypto/Makefile.ssl for use by crypto/cversion.c) caused
7428 problems not only on Windows, but also on some Unix platforms.
7429 To avoid problematic command lines, these definitions are now in an
7430 auto-generated file crypto/buildinf.h (created by crypto/Makefile.ssl
7431 for standard "make" builds, by util/mk1mf.pl for "mk1mf" builds).
7434 *) MIPS III/IV assembler module is reimplemented.
7437 *) More DES library cleanups: remove references to srand/rand and
7438 delete an unused file.
7441 *) Add support for the the free Netwide assembler (NASM) under Win32,
7442 since not many people have MASM (ml) and it can be hard to obtain.
7443 This is currently experimental but it seems to work OK and pass all
7444 the tests. Check out INSTALL.W32 for info.
7447 *) Fix memory leaks in s3_clnt.c: All non-anonymous SSL3/TLS1 connections
7448 without temporary keys kept an extra copy of the server key,
7449 and connections with temporary keys did not free everything in case
7453 *) New function RSA_check_key and new openssl rsa option -check
7454 for verifying the consistency of RSA keys.
7455 [Ulf Moeller, Bodo Moeller]
7457 *) Various changes to make Win32 compile work:
7458 1. Casts to avoid "loss of data" warnings in p5_crpt2.c
7459 2. Change unsigned int to int in b_dump.c to avoid "signed/unsigned
7460 comparison" warnings.
7461 3. Add sk_<TYPE>_sort to DEF file generator and do make update.
7464 *) Add a debugging option to PKCS#5 v2 key generation function: when
7465 you #define DEBUG_PKCS5V2 passwords, salts, iteration counts and
7466 derived keys are printed to stderr.
7469 *) Copy the flags in ASN1_STRING_dup().
7470 [Roman E. Pavlov <pre@mo.msk.ru>]
7472 *) The x509 application mishandled signing requests containing DSA
7473 keys when the signing key was also DSA and the parameters didn't match.
7475 It was supposed to omit the parameters when they matched the signing key:
7476 the verifying software was then supposed to automatically use the CA's
7477 parameters if they were absent from the end user certificate.
7479 Omitting parameters is no longer recommended. The test was also
7480 the wrong way round! This was probably due to unusual behaviour in
7481 EVP_cmp_parameters() which returns 1 if the parameters match.
7482 This meant that parameters were omitted when they *didn't* match and
7483 the certificate was useless. Certificates signed with 'ca' didn't have
7485 [Steve Henson, reported by Doug Erickson <Doug.Erickson@Part.NET>]
7487 *) Memory leak checking (-DCRYPTO_MDEBUG) had some problems.
7488 The interface is as follows:
7489 Applications can use
7490 CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_ON) aka MemCheck_start(),
7491 CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_OFF) aka MemCheck_stop();
7492 "off" is now the default.
7493 The library internally uses
7494 CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_DISABLE) aka MemCheck_off(),
7495 CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_ENABLE) aka MemCheck_on()
7496 to disable memory-checking temporarily.
7498 Some inconsistent states that previously were possible (and were
7499 even the default) are now avoided.
7501 -DCRYPTO_MDEBUG_TIME is new and additionally stores the current time
7502 with each memory chunk allocated; this is occasionally more helpful
7503 than just having a counter.
7505 -DCRYPTO_MDEBUG_THREAD is also new and adds the thread ID.
7507 -DCRYPTO_MDEBUG_ALL enables all of the above, plus any future
7511 *) Introduce "mode" for SSL structures (with defaults in SSL_CTX),
7512 which largely parallels "options", but is for changing API behaviour,
7513 whereas "options" are about protocol behaviour.
7514 Initial "mode" flags are:
7516 SSL_MODE_ENABLE_PARTIAL_WRITE Allow SSL_write to report success when
7517 a single record has been written.
7518 SSL_MODE_ACCEPT_MOVING_WRITE_BUFFER Don't insist that SSL_write
7519 retries use the same buffer location.
7520 (But all of the contents must be
7524 *) Bugfix: SSL_set_options ignored its parameter, only SSL_CTX_set_options
7527 *) Fix problems with no-hmac etc.
7528 [Ulf Möller, pointed out by Brian Wellington <bwelling@tislabs.com>]
7530 *) New functions RSA_get_default_method(), RSA_set_method() and
7531 RSA_get_method(). These allows replacement of RSA_METHODs without having
7532 to mess around with the internals of an RSA structure.
7535 *) Fix memory leaks in DSA_do_sign and DSA_is_prime.
7536 Also really enable memory leak checks in openssl.c and in some
7538 [Chad C. Mulligan, Bodo Moeller]
7540 *) Fix a bug in d2i_ASN1_INTEGER() and i2d_ASN1_INTEGER() which can mess
7541 up the length of negative integers. This has now been simplified to just
7542 store the length when it is first determined and use it later, rather
7543 than trying to keep track of where data is copied and updating it to
7545 [Steve Henson, reported by Brien Wheeler
7546 <bwheeler@authentica-security.com>]
7548 *) Add a new function PKCS7_signatureVerify. This allows the verification
7549 of a PKCS#7 signature but with the signing certificate passed to the
7550 function itself. This contrasts with PKCS7_dataVerify which assumes the
7551 certificate is present in the PKCS#7 structure. This isn't always the
7552 case: certificates can be omitted from a PKCS#7 structure and be
7553 distributed by "out of band" means (such as a certificate database).
7556 *) Complete the PEM_* macros with DECLARE_PEM versions to replace the
7557 function prototypes in pem.h, also change util/mkdef.pl to add the
7558 necessary function names.
7561 *) mk1mf.pl (used by Windows builds) did not properly read the
7562 options set by Configure in the top level Makefile, and Configure
7563 was not even able to write more than one option correctly.
7564 Fixed, now "no-idea no-rc5 -DCRYPTO_MDEBUG" etc. works as intended.
7567 *) New functions CONF_load_bio() and CONF_load_fp() to allow a config
7568 file to be loaded from a BIO or FILE pointer. The BIO version will
7569 for example allow memory BIOs to contain config info.
7572 *) New function "CRYPTO_num_locks" that returns CRYPTO_NUM_LOCKS.
7573 Whoever hopes to achieve shared-library compatibility across versions
7574 must use this, not the compile-time macro.
7575 (Exercise 0.9.4: Which is the minimum library version required by
7577 Note: All this applies only to multi-threaded programs, others don't
7581 *) Add missing case to s3_clnt.c state machine -- one of the new SSL tests
7582 through a BIO pair triggered the default case, i.e.
7583 SSLerr(...,SSL_R_UNKNOWN_STATE).
7586 *) New "BIO pair" concept (crypto/bio/bss_bio.c) so that applications
7587 can use the SSL library even if none of the specific BIOs is
7591 *) Fix a bug in i2d_DSAPublicKey() which meant it returned the wrong value
7592 for the encoded length.
7593 [Jeon KyoungHo <khjeon@sds.samsung.co.kr>]
7595 *) Add initial documentation of the X509V3 functions.
7598 *) Add a new pair of functions PEM_write_PKCS8PrivateKey() and
7599 PEM_write_bio_PKCS8PrivateKey() that are equivalent to
7600 PEM_write_PrivateKey() and PEM_write_bio_PrivateKey() but use the more
7601 secure PKCS#8 private key format with a high iteration count.
7604 *) Fix determination of Perl interpreter: A perl or perl5
7605 _directory_ in $PATH was also accepted as the interpreter.
7606 [Ralf S. Engelschall]
7608 *) Fix demos/sign/sign.c: well there wasn't anything strictly speaking
7609 wrong with it but it was very old and did things like calling
7610 PEM_ASN1_read() directly and used MD5 for the hash not to mention some
7614 *) Fix demos/selfsign.c: it used obsolete and deleted functions, changed
7615 to use the new extension code.
7618 *) Implement the PEM_read/PEM_write functions in crypto/pem/pem_all.c
7619 with macros. This should make it easier to change their form, add extra
7620 arguments etc. Fix a few PEM prototypes which didn't have cipher as a
7624 *) Add to configuration table a new entry that can specify an alternative
7625 name for unistd.h (for pre-POSIX systems); we need this for NeXTstep,
7626 according to Mark Crispin <MRC@Panda.COM>.
7630 *) DES CBC did not update the IV. Weird.
7633 des_cbc_encrypt does not update the IV, but des_ncbc_encrypt does.
7634 Changing the behaviour of the former might break existing programs --
7635 where IV updating is needed, des_ncbc_encrypt can be used.
7638 *) When bntest is run from "make test" it drives bc to check its
7639 calculations, as well as internally checking them. If an internal check
7640 fails, it needs to cause bc to give a non-zero result or make test carries
7641 on without noticing the failure. Fixed.
7644 *) DES library cleanups.
7647 *) Add support for PKCS#5 v2.0 PBE algorithms. This will permit PKCS#8 to be
7648 used with any cipher unlike PKCS#5 v1.5 which can at most handle 64 bit
7649 ciphers. NOTE: although the key derivation function has been verified
7650 against some published test vectors it has not been extensively tested
7651 yet. Added a -v2 "cipher" option to pkcs8 application to allow the use
7655 *) Instead of "mkdir -p", which is not fully portable, use new
7656 Perl script "util/mkdir-p.pl".
7659 *) Rewrite the way password based encryption (PBE) is handled. It used to
7660 assume that the ASN1 AlgorithmIdentifier parameter was a PBEParameter
7661 structure. This was true for the PKCS#5 v1.5 and PKCS#12 PBE algorithms
7662 but doesn't apply to PKCS#5 v2.0 where it can be something else. Now
7663 the 'parameter' field of the AlgorithmIdentifier is passed to the
7664 underlying key generation function so it must do its own ASN1 parsing.
7665 This has also changed the EVP_PBE_CipherInit() function which now has a
7666 'parameter' argument instead of literal salt and iteration count values
7667 and the function EVP_PBE_ALGOR_CipherInit() has been deleted.
7670 *) Support for PKCS#5 v1.5 compatible password based encryption algorithms
7671 and PKCS#8 functionality. New 'pkcs8' application linked to openssl.
7672 Needed to change the PEM_STRING_EVP_PKEY value which was just "PRIVATE
7673 KEY" because this clashed with PKCS#8 unencrypted string. Since this
7674 value was just used as a "magic string" and not used directly its
7675 value doesn't matter.
7678 *) Introduce some semblance of const correctness to BN. Shame C doesn't
7682 *) "linux-sparc64" configuration (ultrapenguin).
7683 [Ray Miller <ray.miller@oucs.ox.ac.uk>]
7684 "linux-sparc" configuration.
7685 [Christian Forster <fo@hawo.stw.uni-erlangen.de>]
7687 *) config now generates no-xxx options for missing ciphers.
7690 *) Support the EBCDIC character set (work in progress).
7691 File ebcdic.c not yet included because it has a different license.
7692 [Martin Kraemer <Martin.Kraemer@MchP.Siemens.De>]
7694 *) Support BS2000/OSD-POSIX.
7695 [Martin Kraemer <Martin.Kraemer@MchP.Siemens.De>]
7697 *) Make callbacks for key generation use void * instead of char *.
7700 *) Make S/MIME samples compile (not yet tested).
7703 *) Additional typesafe stacks.
7706 *) New configuration variants "bsdi-elf-gcc" (BSD/OS 4.x).
7710 Changes between 0.9.3 and 0.9.3a [29 May 1999]
7712 *) New configuration variant "sco5-gcc".
7714 *) Updated some demos.
7715 [Sean O Riordain, Wade Scholine]
7717 *) Add missing BIO_free at exit of pkcs12 application.
7720 *) Fix memory leak in conf.c.
7723 *) Updates for Win32 to assembler version of MD5.
7726 *) Set #! path to perl in apps/der_chop to where we found it
7727 instead of using a fixed path.
7730 *) SHA library changes for irix64-mips4-cc.
7733 *) Improvements for VMS support.
7737 Changes between 0.9.2b and 0.9.3 [24 May 1999]
7739 *) Bignum library bug fix. IRIX 6 passes "make test" now!
7740 This also avoids the problems with SC4.2 and unpatched SC5.
7741 [Andy Polyakov <appro@fy.chalmers.se>]
7743 *) New functions sk_num, sk_value and sk_set to replace the previous macros.
7744 These are required because of the typesafe stack would otherwise break
7745 existing code. If old code used a structure member which used to be STACK
7746 and is now STACK_OF (for example cert in a PKCS7_SIGNED structure) with
7747 sk_num or sk_value it would produce an error because the num, data members
7748 are not present in STACK_OF. Now it just produces a warning. sk_set
7749 replaces the old method of assigning a value to sk_value
7750 (e.g. sk_value(x, i) = y) which the library used in a few cases. Any code
7751 that does this will no longer work (and should use sk_set instead) but
7752 this could be regarded as a "questionable" behaviour anyway.
7755 *) Fix most of the other PKCS#7 bugs. The "experimental" code can now
7756 correctly handle encrypted S/MIME data.
7759 *) Change type of various DES function arguments from des_cblock
7760 (which means, in function argument declarations, pointer to char)
7761 to des_cblock * (meaning pointer to array with 8 char elements),
7762 which allows the compiler to do more typechecking; it was like
7763 that back in SSLeay, but with lots of ugly casts.
7765 Introduce new type const_des_cblock.
7768 *) Reorganise the PKCS#7 library and get rid of some of the more obvious
7769 problems: find RecipientInfo structure that matches recipient certificate
7770 and initialise the ASN1 structures properly based on passed cipher.
7773 *) Belatedly make the BN tests actually check the results.
7776 *) Fix the encoding and decoding of negative ASN1 INTEGERS and conversion
7777 to and from BNs: it was completely broken. New compilation option
7778 NEG_PUBKEY_BUG to allow for some broken certificates that encode public
7779 key elements as negative integers.
7782 *) Reorganize and speed up MD5.
7783 [Andy Polyakov <appro@fy.chalmers.se>]
7786 [Richard Levitte <richard@levitte.org>]
7788 *) New option -out to asn1parse to allow the parsed structure to be
7789 output to a file. This is most useful when combined with the -strparse
7790 option to examine the output of things like OCTET STRINGS.
7793 *) Make SSL library a little more fool-proof by not requiring any longer
7794 that SSL_set_{accept,connect}_state be called before
7795 SSL_{accept,connect} may be used (SSL_set_..._state is omitted
7796 in many applications because usually everything *appeared* to work as
7797 intended anyway -- now it really works as intended).
7800 *) Move openssl.cnf out of lib/.
7803 *) Fix various things to let OpenSSL even pass ``egcc -pipe -O2 -Wall
7804 -Wshadow -Wpointer-arith -Wcast-align -Wmissing-prototypes
7805 -Wmissing-declarations -Wnested-externs -Winline'' with EGCS 1.1.2+
7806 [Ralf S. Engelschall]
7808 *) Various fixes to the EVP and PKCS#7 code. It may now be able to
7809 handle PKCS#7 enveloped data properly.
7810 [Sebastian Akerman <sak@parallelconsulting.com>, modified by Steve]
7812 *) Create a duplicate of the SSL_CTX's CERT in SSL_new instead of
7813 copying pointers. The cert_st handling is changed by this in
7814 various ways (and thus what used to be known as ctx->default_cert
7815 is now called ctx->cert, since we don't resort to s->ctx->[default_]cert
7816 any longer when s->cert does not give us what we need).
7817 ssl_cert_instantiate becomes obsolete by this change.
7818 As soon as we've got the new code right (possibly it already is?),
7819 we have solved a couple of bugs of the earlier code where s->cert
7820 was used as if it could not have been shared with other SSL structures.
7822 Note that using the SSL API in certain dirty ways now will result
7823 in different behaviour than observed with earlier library versions:
7824 Changing settings for an SSL_CTX *ctx after having done s = SSL_new(ctx)
7825 does not influence s as it used to.
7827 In order to clean up things more thoroughly, inside SSL_SESSION
7828 we don't use CERT any longer, but a new structure SESS_CERT
7829 that holds per-session data (if available); currently, this is
7830 the peer's certificate chain and, for clients, the server's certificate
7831 and temporary key. CERT holds only those values that can have
7832 meaningful defaults in an SSL_CTX.
7835 *) New function X509V3_EXT_i2d() to create an X509_EXTENSION structure
7836 from the internal representation. Various PKCS#7 fixes: remove some
7837 evil casts and set the enc_dig_alg field properly based on the signing
7841 *) Allow PKCS#12 password to be set from the command line or the
7842 environment. Let 'ca' get its config file name from the environment
7843 variables "OPENSSL_CONF" or "SSLEAY_CONF" (for consistency with 'req'
7847 *) Allow certificate policies extension to use an IA5STRING for the
7848 organization field. This is contrary to the PKIX definition but
7849 VeriSign uses it and IE5 only recognises this form. Document 'x509'
7853 *) Add PEDANTIC compiler flag to allow compilation with gcc -pedantic,
7854 without disallowing inline assembler and the like for non-pedantic builds.
7857 *) Support Borland C++ builder.
7858 [Janez Jere <jj@void.si>, modified by Ulf Möller]
7863 *) SHA-1 cleanups and performance enhancements.
7864 [Andy Polyakov <appro@fy.chalmers.se>]
7866 *) Sparc v8plus assembler for the bignum library.
7867 [Andy Polyakov <appro@fy.chalmers.se>]
7869 *) Accept any -xxx and +xxx compiler options in Configure.
7872 *) Update HPUX configuration.
7875 *) Add missing sk_<type>_unshift() function to safestack.h
7876 [Ralf S. Engelschall]
7878 *) New function SSL_CTX_use_certificate_chain_file that sets the
7879 "extra_cert"s in addition to the certificate. (This makes sense
7880 only for "PEM" format files, as chains as a whole are not
7884 *) Support verify_depth from the SSL API.
7885 x509_vfy.c had what can be considered an off-by-one-error:
7886 Its depth (which was not part of the external interface)
7887 was actually counting the number of certificates in a chain;
7888 now it really counts the depth.
7891 *) Bugfix in crypto/x509/x509_cmp.c: The SSLerr macro was used
7892 instead of X509err, which often resulted in confusing error
7893 messages since the error codes are not globally unique
7894 (e.g. an alleged error in ssl3_accept when a certificate
7895 didn't match the private key).
7897 *) New function SSL_CTX_set_session_id_context that allows to set a default
7898 value (so that you don't need SSL_set_session_id_context for each
7899 connection using the SSL_CTX).
7902 *) OAEP decoding bug fix.
7905 *) Support INSTALL_PREFIX for package builders, as proposed by
7909 *) New Configure options "threads" and "no-threads". For systems
7910 where the proper compiler options are known (currently Solaris
7911 and Linux), "threads" is the default.
7914 *) New script util/mklink.pl as a faster substitute for util/mklink.sh.
7917 *) Install various scripts to $(OPENSSLDIR)/misc, not to
7918 $(INSTALLTOP)/bin -- they shouldn't clutter directories
7919 such as /usr/local/bin.
7922 *) "make linux-shared" to build shared libraries.
7923 [Niels Poppe <niels@netbox.org>]
7925 *) New Configure option no-<cipher> (rsa, idea, rc5, ...).
7928 *) Add the PKCS#12 API documentation to openssl.txt. Preliminary support for
7929 extension adding in x509 utility.
7932 *) Remove NOPROTO sections and error code comments.
7935 *) Partial rewrite of the DEF file generator to now parse the ANSI
7939 *) New Configure options --prefix=DIR and --openssldir=DIR.
7942 *) Complete rewrite of the error code script(s). It is all now handled
7943 by one script at the top level which handles error code gathering,
7944 header rewriting and C source file generation. It should be much better
7945 than the old method: it now uses a modified version of Ulf's parser to
7946 read the ANSI prototypes in all header files (thus the old K&R definitions
7947 aren't needed for error creation any more) and do a better job of
7948 translating function codes into names. The old 'ASN1 error code imbedded
7949 in a comment' is no longer necessary and it doesn't use .err files which
7950 have now been deleted. Also the error code call doesn't have to appear all
7951 on one line (which resulted in some large lines...).
7954 *) Change #include filenames from <foo.h> to <openssl/foo.h>.
7957 *) Change behaviour of ssl2_read when facing length-0 packets: Don't return
7958 0 (which usually indicates a closed connection), but continue reading.
7961 *) Fix some race conditions.
7964 *) Add support for CRL distribution points extension. Add Certificate
7965 Policies and CRL distribution points documentation.
7968 *) Move the autogenerated header file parts to crypto/opensslconf.h.
7971 *) Fix new 56-bit DES export ciphersuites: they were using 7 bytes instead of
7972 8 of keying material. Merlin has also confirmed interop with this fix
7973 between OpenSSL and Baltimore C/SSL 2.0 and J/SSL 2.0.
7974 [Merlin Hughes <merlin@baltimore.ie>]
7976 *) Fix lots of warnings.
7977 [Richard Levitte <levitte@stacken.kth.se>]
7979 *) In add_cert_dir() in crypto/x509/by_dir.c, break out of the loop if
7980 the directory spec didn't end with a LIST_SEPARATOR_CHAR.
7981 [Richard Levitte <levitte@stacken.kth.se>]
7983 *) Fix problems with sizeof(long) == 8.
7984 [Andy Polyakov <appro@fy.chalmers.se>]
7986 *) Change functions to ANSI C.
7989 *) Fix typos in error codes.
7990 [Martin Kraemer <Martin.Kraemer@MchP.Siemens.De>, Ulf Möller]
7992 *) Remove defunct assembler files from Configure.
7995 *) SPARC v8 assembler BIGNUM implementation.
7996 [Andy Polyakov <appro@fy.chalmers.se>]
7998 *) Support for Certificate Policies extension: both print and set.
7999 Various additions to support the r2i method this uses.
8002 *) A lot of constification, and fix a bug in X509_NAME_oneline() that could
8003 return a const string when you are expecting an allocated buffer.
8006 *) Add support for ASN1 types UTF8String and VISIBLESTRING, also the CHOICE
8007 types DirectoryString and DisplayText.
8010 *) Add code to allow r2i extensions to access the configuration database,
8011 add an LHASH database driver and add several ctx helper functions.
8014 *) Fix an evil bug in bn_expand2() which caused various BN functions to
8015 fail when they extended the size of a BIGNUM.
8018 *) Various utility functions to handle SXNet extension. Modify mkdef.pl to
8019 support typesafe stack.
8022 *) Fix typo in SSL_[gs]et_options().
8023 [Nils Frostberg <nils@medcom.se>]
8025 *) Delete various functions and files that belonged to the (now obsolete)
8026 old X509V3 handling code.
8029 *) New Configure option "rsaref".
8032 *) Don't auto-generate pem.h.
8035 *) Introduce type-safe ASN.1 SETs.
8038 *) Convert various additional casted stacks to type-safe STACK_OF() variants.
8039 [Ben Laurie, Ralf S. Engelschall, Steve Henson]
8041 *) Introduce type-safe STACKs. This will almost certainly break lots of code
8042 that links with OpenSSL (well at least cause lots of warnings), but fear
8043 not: the conversion is trivial, and it eliminates loads of evil casts. A
8044 few STACKed things have been converted already. Feel free to convert more.
8045 In the fullness of time, I'll do away with the STACK type altogether.
8048 *) Add `openssl ca -revoke <certfile>' facility which revokes a certificate
8049 specified in <certfile> by updating the entry in the index.txt file.
8050 This way one no longer has to edit the index.txt file manually for
8051 revoking a certificate. The -revoke option does the gory details now.
8052 [Massimiliano Pala <madwolf@openca.org>, Ralf S. Engelschall]
8054 *) Fix `openssl crl -noout -text' combination where `-noout' killed the
8055 `-text' option at all and this way the `-noout -text' combination was
8056 inconsistent in `openssl crl' with the friends in `openssl x509|rsa|dsa'.
8057 [Ralf S. Engelschall]
8059 *) Make sure a corresponding plain text error message exists for the
8060 X509_V_ERR_CERT_REVOKED/23 error number which can occur when a
8061 verify callback function determined that a certificate was revoked.
8062 [Ralf S. Engelschall]
8064 *) Bugfix: In test/testenc, don't test "openssl <cipher>" for
8065 ciphers that were excluded, e.g. by -DNO_IDEA. Also, test
8066 all available cipers including rc5, which was forgotten until now.
8067 In order to let the testing shell script know which algorithms
8068 are available, a new (up to now undocumented) command
8069 "openssl list-cipher-commands" is used.
8072 *) Bugfix: s_client occasionally would sleep in select() when
8073 it should have checked SSL_pending() first.
8076 *) New functions DSA_do_sign and DSA_do_verify to provide access to
8077 the raw DSA values prior to ASN.1 encoding.
8080 *) Tweaks to Configure
8081 [Niels Poppe <niels@netbox.org>]
8083 *) Add support for PKCS#5 v2.0 ASN1 PBES2 structures. No other support,
8087 *) New variables $(RANLIB) and $(PERL) in the Makefiles.
8090 *) New config option to avoid instructions that are illegal on the 80386.
8091 The default code is faster, but requires at least a 486.
8094 *) Got rid of old SSL2_CLIENT_VERSION (inconsistently used) and
8095 SSL2_SERVER_VERSION (not used at all) macros, which are now the
8096 same as SSL2_VERSION anyway.
8099 *) New "-showcerts" option for s_client.
8102 *) Still more PKCS#12 integration. Add pkcs12 application to openssl
8103 application. Various cleanups and fixes.
8106 *) More PKCS#12 integration. Add new pkcs12 directory with Makefile.ssl and
8107 modify error routines to work internally. Add error codes and PBE init
8108 to library startup routines.
8111 *) Further PKCS#12 integration. Added password based encryption, PKCS#8 and
8112 packing functions to asn1 and evp. Changed function names and error
8113 codes along the way.
8116 *) PKCS12 integration: and so it begins... First of several patches to
8117 slowly integrate PKCS#12 functionality into OpenSSL. Add PKCS#12
8118 objects to objects.h
8121 *) Add a new 'indent' option to some X509V3 extension code. Initial ASN1
8122 and display support for Thawte strong extranet extension.
8125 *) Add LinuxPPC support.
8126 [Jeff Dubrule <igor@pobox.org>]
8128 *) Get rid of redundant BN file bn_mulw.c, and rename bn_div64 to
8129 bn_div_words in alpha.s.
8130 [Hannes Reinecke <H.Reinecke@hw.ac.uk> and Ben Laurie]
8132 *) Make sure the RSA OAEP test is skipped under -DRSAref because
8133 OAEP isn't supported when OpenSSL is built with RSAref.
8134 [Ulf Moeller <ulf@fitug.de>]
8136 *) Move definitions of IS_SET/IS_SEQUENCE inside crypto/asn1/asn1.h
8137 so they no longer are missing under -DNOPROTO.
8138 [Soren S. Jorvang <soren@t.dk>]
8141 Changes between 0.9.1c and 0.9.2b [22 Mar 1999]
8143 *) Make SSL_get_peer_cert_chain() work in servers. Unfortunately, it still
8144 doesn't work when the session is reused. Coming soon!
8147 *) Fix a security hole, that allows sessions to be reused in the wrong
8148 context thus bypassing client cert protection! All software that uses
8149 client certs and session caches in multiple contexts NEEDS PATCHING to
8150 allow session reuse! A fuller solution is in the works.
8151 [Ben Laurie, problem pointed out by Holger Reif, Bodo Moeller (and ???)]
8153 *) Some more source tree cleanups (removed obsolete files
8154 crypto/bf/asm/bf586.pl, test/test.txt and crypto/sha/asm/f.s; changed
8155 permission on "config" script to be executable) and a fix for the INSTALL
8157 [Ulf Moeller <ulf@fitug.de>]
8159 *) Remove some legacy and erroneous uses of malloc, free instead of
8161 [Lennart Bang <lob@netstream.se>, with minor changes by Steve]
8163 *) Make rsa_oaep_test return non-zero on error.
8164 [Ulf Moeller <ulf@fitug.de>]
8166 *) Add support for native Solaris shared libraries. Configure
8167 solaris-sparc-sc4-pic, make, then run shlib/solaris-sc4.sh. It'd be nice
8168 if someone would make that last step automatic.
8169 [Matthias Loepfe <Matthias.Loepfe@AdNovum.CH>]
8171 *) ctx_size was not built with the right compiler during "make links". Fixed.
8174 *) Change the meaning of 'ALL' in the cipher list. It now means "everything
8175 except NULL ciphers". This means the default cipher list will no longer
8176 enable NULL ciphers. They need to be specifically enabled e.g. with
8177 the string "DEFAULT:eNULL".
8180 *) Fix to RSA private encryption routines: if p < q then it would
8181 occasionally produce an invalid result. This will only happen with
8182 externally generated keys because OpenSSL (and SSLeay) ensure p > q.
8185 *) Be less restrictive and allow also `perl util/perlpath.pl
8186 /path/to/bin/perl' in addition to `perl util/perlpath.pl /path/to/bin',
8187 because this way one can also use an interpreter named `perl5' (which is
8188 usually the name of Perl 5.xxx on platforms where an Perl 4.x is still
8189 installed as `perl').
8190 [Matthias Loepfe <Matthias.Loepfe@adnovum.ch>]
8192 *) Let util/clean-depend.pl work also with older Perl 5.00x versions.
8193 [Matthias Loepfe <Matthias.Loepfe@adnovum.ch>]
8195 *) Fix Makefile.org so CC,CFLAG etc are passed to 'make links' add
8196 advapi32.lib to Win32 build and change the pem test comparision
8197 to fc.exe (thanks to Ulrich Kroener <kroneru@yahoo.com> for the
8198 suggestion). Fix misplaced ASNI prototypes and declarations in evp.h
8199 and crypto/des/ede_cbcm_enc.c.
8202 *) DES quad checksum was broken on big-endian architectures. Fixed.
8205 *) Comment out two functions in bio.h that aren't implemented. Fix up the
8206 Win32 test batch file so it (might) work again. The Win32 test batch file
8207 is horrible: I feel ill....
8210 *) Move various #ifdefs around so NO_SYSLOG, NO_DIRENT etc are now selected
8211 in e_os.h. Audit of header files to check ANSI and non ANSI
8212 sections: 10 functions were absent from non ANSI section and not exported
8213 from Windows DLLs. Fixed up libeay.num for new functions.
8216 *) Make `openssl version' output lines consistent.
8217 [Ralf S. Engelschall]
8219 *) Fix Win32 symbol export lists for BIO functions: Added
8220 BIO_get_ex_new_index, BIO_get_ex_num, BIO_get_ex_data and BIO_set_ex_data
8221 to ms/libeay{16,32}.def.
8222 [Ralf S. Engelschall]
8224 *) Second round of fixing the OpenSSL perl/ stuff. It now at least compiled
8225 fine under Unix and passes some trivial tests I've now added. But the
8226 whole stuff is horribly incomplete, so a README.1ST with a disclaimer was
8227 added to make sure no one expects that this stuff really works in the
8228 OpenSSL 0.9.2 release. Additionally I've started to clean the XS sources
8229 up and fixed a few little bugs and inconsistencies in OpenSSL.{pm,xs} and
8231 [Ralf S. Engelschall]
8233 *) Fix the generation of two part addresses in perl.
8234 [Kenji Miyake <kenji@miyake.org>, integrated by Ben Laurie]
8236 *) Add config entry for Linux on MIPS.
8237 [John Tobey <jtobey@channel1.com>]
8239 *) Make links whenever Configure is run, unless we are on Windoze.
8242 *) Permit extensions to be added to CRLs using crl_section in openssl.cnf.
8243 Currently only issuerAltName and AuthorityKeyIdentifier make any sense
8247 *) Add a useful kludge to allow package maintainers to specify compiler and
8248 other platforms details on the command line without having to patch the
8249 Configure script everytime: One now can use ``perl Configure
8250 <id>:<details>'', i.e. platform ids are allowed to have details appended
8251 to them (seperated by colons). This is treated as there would be a static
8252 pre-configured entry in Configure's %table under key <id> with value
8253 <details> and ``perl Configure <id>'' is called. So, when you want to
8254 perform a quick test-compile under FreeBSD 3.1 with pgcc and without
8255 assembler stuff you can use ``perl Configure "FreeBSD-elf:pgcc:-O6:::"''
8256 now, which overrides the FreeBSD-elf entry on-the-fly.
8257 [Ralf S. Engelschall]
8259 *) Disable new TLS1 ciphersuites by default: they aren't official yet.
8262 *) Allow DSO flags like -fpic, -fPIC, -KPIC etc. to be specified
8263 on the `perl Configure ...' command line. This way one can compile
8264 OpenSSL libraries with Position Independent Code (PIC) which is needed
8265 for linking it into DSOs.
8266 [Ralf S. Engelschall]
8268 *) Remarkably, export ciphers were totally broken and no-one had noticed!
8272 *) Cleaned up the LICENSE document: The official contact for any license
8273 questions now is the OpenSSL core team under openssl-core@openssl.org.
8274 And add a paragraph about the dual-license situation to make sure people
8275 recognize that _BOTH_ the OpenSSL license _AND_ the SSLeay license apply
8276 to the OpenSSL toolkit.
8277 [Ralf S. Engelschall]
8279 *) General source tree makefile cleanups: Made `making xxx in yyy...'
8280 display consistent in the source tree and replaced `/bin/rm' by `rm'.
8281 Additonally cleaned up the `make links' target: Remove unnecessary
8282 semicolons, subsequent redundant removes, inline point.sh into mklink.sh
8283 to speed processing and no longer clutter the display with confusing
8284 stuff. Instead only the actually done links are displayed.
8285 [Ralf S. Engelschall]
8287 *) Permit null encryption ciphersuites, used for authentication only. It used
8288 to be necessary to set the preprocessor define SSL_ALLOW_ENULL to do this.
8289 It is now necessary to set SSL_FORBID_ENULL to prevent the use of null
8293 *) Add a bunch of fixes to the PKCS#7 stuff. It used to sometimes reorder
8294 signed attributes when verifying signatures (this would break them),
8295 the detached data encoding was wrong and public keys obtained using
8296 X509_get_pubkey() weren't freed.
8299 *) Add text documentation for the BUFFER functions. Also added a work around
8300 to a Win95 console bug. This was triggered by the password read stuff: the
8301 last character typed gets carried over to the next fread(). If you were
8302 generating a new cert request using 'req' for example then the last
8303 character of the passphrase would be CR which would then enter the first
8307 *) Added the new `Includes OpenSSL Cryptography Software' button as
8308 doc/openssl_button.{gif,html} which is similar in style to the old SSLeay
8309 button and can be used by applications based on OpenSSL to show the
8310 relationship to the OpenSSL project.
8311 [Ralf S. Engelschall]
8313 *) Remove confusing variables in function signatures in files
8314 ssl/ssl_lib.c and ssl/ssl.h.
8315 [Lennart Bong <lob@kulthea.stacken.kth.se>]
8317 *) Don't install bss_file.c under PREFIX/include/
8318 [Lennart Bong <lob@kulthea.stacken.kth.se>]
8320 *) Get the Win32 compile working again. Modify mkdef.pl so it can handle
8321 functions that return function pointers and has support for NT specific
8322 stuff. Fix mk1mf.pl and VC-32.pl to support NT differences also. Various
8323 #ifdef WIN32 and WINNTs sprinkled about the place and some changes from
8324 unsigned to signed types: this was killing the Win32 compile.
8327 *) Add new certificate file to stack functions,
8328 SSL_add_dir_cert_subjects_to_stack() and
8329 SSL_add_file_cert_subjects_to_stack(). These largely supplant
8330 SSL_load_client_CA_file(), and can be used to add multiple certs easily
8331 to a stack (usually this is then handed to SSL_CTX_set_client_CA_list()).
8332 This means that Apache-SSL and similar packages don't have to mess around
8333 to add as many CAs as they want to the preferred list.
8336 *) Experiment with doxygen documentation. Currently only partially applied to
8338 See http://www.stack.nl/~dimitri/doxygen/index.html, and run doxygen with
8339 openssl.doxy as the configuration file.
8342 *) Get rid of remaining C++-style comments which strict C compilers hate.
8343 [Ralf S. Engelschall, pointed out by Carlos Amengual]
8345 *) Changed BN_RECURSION in bn_mont.c to BN_RECURSION_MONT so it is not
8346 compiled in by default: it has problems with large keys.
8349 *) Add a bunch of SSL_xxx() functions for configuring the temporary RSA and
8350 DH private keys and/or callback functions which directly correspond to
8351 their SSL_CTX_xxx() counterparts but work on a per-connection basis. This
8352 is needed for applications which have to configure certificates on a
8353 per-connection basis (e.g. Apache+mod_ssl) instead of a per-context basis
8355 For the RSA certificate situation is makes no difference, but
8356 for the DSA certificate situation this fixes the "no shared cipher"
8357 problem where the OpenSSL cipher selection procedure failed because the
8358 temporary keys were not overtaken from the context and the API provided
8359 no way to reconfigure them.
8360 The new functions now let applications reconfigure the stuff and they
8361 are in detail: SSL_need_tmp_RSA, SSL_set_tmp_rsa, SSL_set_tmp_dh,
8362 SSL_set_tmp_rsa_callback and SSL_set_tmp_dh_callback. Additionally a new
8363 non-public-API function ssl_cert_instantiate() is used as a helper
8364 function and also to reduce code redundancy inside ssl_rsa.c.
8365 [Ralf S. Engelschall]
8367 *) Move s_server -dcert and -dkey options out of the undocumented feature
8368 area because they are useful for the DSA situation and should be
8369 recognized by the users.
8370 [Ralf S. Engelschall]
8372 *) Fix the cipher decision scheme for export ciphers: the export bits are
8373 *not* within SSL_MKEY_MASK or SSL_AUTH_MASK, they are within
8374 SSL_EXP_MASK. So, the original variable has to be used instead of the
8375 already masked variable.
8376 [Richard Levitte <levitte@stacken.kth.se>]
8378 *) Fix 'port' variable from `int' to `unsigned int' in crypto/bio/b_sock.c
8379 [Richard Levitte <levitte@stacken.kth.se>]
8381 *) Change type of another md_len variable in pk7_doit.c:PKCS7_dataFinal()
8382 from `int' to `unsigned int' because it's a length and initialized by
8383 EVP_DigestFinal() which expects an `unsigned int *'.
8384 [Richard Levitte <levitte@stacken.kth.se>]
8386 *) Don't hard-code path to Perl interpreter on shebang line of Configure
8387 script. Instead use the usual Shell->Perl transition trick.
8388 [Ralf S. Engelschall]
8390 *) Make `openssl x509 -noout -modulus' functional also for DSA certificates
8391 (in addition to RSA certificates) to match the behaviour of `openssl dsa
8392 -noout -modulus' as it's already the case for `openssl rsa -noout
8393 -modulus'. For RSA the -modulus is the real "modulus" while for DSA
8394 currently the public key is printed (a decision which was already done by
8395 `openssl dsa -modulus' in the past) which serves a similar purpose.
8396 Additionally the NO_RSA no longer completely removes the whole -modulus
8397 option; it now only avoids using the RSA stuff. Same applies to NO_DSA
8399 [Ralf S. Engelschall]
8401 *) Add Arne Ansper's reliable BIO - this is an encrypted, block-digested
8402 BIO. See the source (crypto/evp/bio_ok.c) for more info.
8403 [Arne Ansper <arne@ats.cyber.ee>]
8405 *) Dump the old yucky req code that tried (and failed) to allow raw OIDs
8406 to be added. Now both 'req' and 'ca' can use new objects defined in the
8410 *) Add cool BIO that does syslog (or event log on NT).
8411 [Arne Ansper <arne@ats.cyber.ee>, integrated by Ben Laurie]
8413 *) Add support for new TLS ciphersuites, TLS_RSA_EXPORT56_WITH_RC4_56_MD5,
8414 TLS_RSA_EXPORT56_WITH_RC2_CBC_56_MD5 and
8415 TLS_RSA_EXPORT56_WITH_DES_CBC_SHA, as specified in "56-bit Export Cipher
8416 Suites For TLS", draft-ietf-tls-56-bit-ciphersuites-00.txt.
8419 *) Add preliminary config info for new extension code.
8422 *) Make RSA_NO_PADDING really use no padding.
8423 [Ulf Moeller <ulf@fitug.de>]
8425 *) Generate errors when private/public key check is done.
8428 *) Overhaul for 'crl' utility. New function X509_CRL_print. Partial support
8429 for some CRL extensions and new objects added.
8432 *) Really fix the ASN1 IMPLICIT bug this time... Partial support for private
8433 key usage extension and fuller support for authority key id.
8436 *) Add OAEP encryption for the OpenSSL crypto library. OAEP is the improved
8437 padding method for RSA, which is recommended for new applications in PKCS
8438 #1 v2.0 (RFC 2437, October 1998).
8439 OAEP (Optimal Asymmetric Encryption Padding) has better theoretical
8440 foundations than the ad-hoc padding used in PKCS #1 v1.5. It is secure
8441 against Bleichbacher's attack on RSA.
8442 [Ulf Moeller <ulf@fitug.de>, reformatted, corrected and integrated by
8445 *) Updates to the new SSL compression code
8446 [Eric A. Young, (from changes to C2Net SSLeay, integrated by Mark Cox)]
8448 *) Fix so that the version number in the master secret, when passed
8449 via RSA, checks that if TLS was proposed, but we roll back to SSLv3
8450 (because the server will not accept higher), that the version number
8451 is 0x03,0x01, not 0x03,0x00
8452 [Eric A. Young, (from changes to C2Net SSLeay, integrated by Mark Cox)]
8454 *) Run extensive memory leak checks on SSL apps. Fixed *lots* of memory
8455 leaks in ssl/ relating to new X509_get_pubkey() behaviour. Also fixes
8456 in apps/ and an unrelated leak in crypto/dsa/dsa_vrf.c
8459 *) Support for RAW extensions where an arbitrary extension can be
8460 created by including its DER encoding. See apps/openssl.cnf for
8464 *) Make sure latest Perl versions don't interpret some generated C array
8465 code as Perl array code in the crypto/err/err_genc.pl script.
8466 [Lars Weber <3weber@informatik.uni-hamburg.de>]
8468 *) Modify ms/do_ms.bat to not generate assembly language makefiles since
8469 not many people have the assembler. Various Win32 compilation fixes and
8470 update to the INSTALL.W32 file with (hopefully) more accurate Win32
8474 *) Modify configure script 'Configure' to automatically create crypto/date.h
8475 file under Win32 and also build pem.h from pem.org. New script
8476 util/mkfiles.pl to create the MINFO file on environments that can't do a
8477 'make files': perl util/mkfiles.pl >MINFO should work.
8480 *) Major rework of DES function declarations, in the pursuit of correctness
8481 and purity. As a result, many evil casts evaporated, and some weirdness,
8482 too. You may find this causes warnings in your code. Zapping your evil
8483 casts will probably fix them. Mostly.
8486 *) Fix for a typo in asn1.h. Bug fix to object creation script
8487 obj_dat.pl. It considered a zero in an object definition to mean
8488 "end of object": none of the objects in objects.h have any zeros
8489 so it wasn't spotted.
8490 [Steve Henson, reported by Erwann ABALEA <eabalea@certplus.com>]
8492 *) Add support for Triple DES Cipher Block Chaining with Output Feedback
8493 Masking (CBCM). In the absence of test vectors, the best I have been able
8494 to do is check that the decrypt undoes the encrypt, so far. Send me test
8495 vectors if you have them.
8498 *) Correct calculation of key length for export ciphers (too much space was
8499 allocated for null ciphers). This has not been tested!
8502 *) Modifications to the mkdef.pl for Win32 DEF file creation. The usage
8503 message is now correct (it understands "crypto" and "ssl" on its
8504 command line). There is also now an "update" option. This will update
8505 the util/ssleay.num and util/libeay.num files with any new functions.
8507 perl util/mkdef.pl crypto ssl update
8508 it will update them.
8511 *) Overhauled the Perl interface (perl/*):
8512 - ported BN stuff to OpenSSL's different BN library
8513 - made the perl/ source tree CVS-aware
8514 - renamed the package from SSLeay to OpenSSL (the files still contain
8515 their history because I've copied them in the repository)
8516 - removed obsolete files (the test scripts will be replaced
8517 by better Test::Harness variants in the future)
8518 [Ralf S. Engelschall]
8520 *) First cut for a very conservative source tree cleanup:
8521 1. merge various obsolete readme texts into doc/ssleay.txt
8522 where we collect the old documents and readme texts.
8523 2. remove the first part of files where I'm already sure that we no
8524 longer need them because of three reasons: either they are just temporary
8525 files which were left by Eric or they are preserved original files where
8526 I've verified that the diff is also available in the CVS via "cvs diff
8527 -rSSLeay_0_8_1b" or they were renamed (as it was definitely the case for
8528 the crypto/md/ stuff).
8529 [Ralf S. Engelschall]
8531 *) More extension code. Incomplete support for subject and issuer alt
8532 name, issuer and authority key id. Change the i2v function parameters
8533 and add an extra 'crl' parameter in the X509V3_CTX structure: guess
8534 what that's for :-) Fix to ASN1 macro which messed up
8535 IMPLICIT tag and add f_enum.c which adds a2i, i2a for ENUMERATED.
8538 *) Preliminary support for ENUMERATED type. This is largely copied from the
8542 *) Add new function, EVP_MD_CTX_copy() to replace frequent use of memcpy.
8543 [Eric A. Young, (from changes to C2Net SSLeay, integrated by Mark Cox)]
8545 *) Make sure `make rehash' target really finds the `openssl' program.
8546 [Ralf S. Engelschall, Matthias Loepfe <Matthias.Loepfe@adnovum.ch>]
8548 *) Squeeze another 7% of speed out of MD5 assembler, at least on a P2. I'd
8549 like to hear about it if this slows down other processors.
8552 *) Add CygWin32 platform information to Configure script.
8553 [Alan Batie <batie@aahz.jf.intel.com>]
8555 *) Fixed ms/32all.bat script: `no_asm' -> `no-asm'
8556 [Rainer W. Gerling <gerling@mpg-gv.mpg.de>]
8558 *) New program nseq to manipulate netscape certificate sequences
8561 *) Modify crl2pkcs7 so it supports multiple -certfile arguments. Fix a
8565 *) Fixes to BN code. Previously the default was to define BN_RECURSION
8566 but the BN code had some problems that would cause failures when
8567 doing certificate verification and some other functions.
8568 [Eric A. Young, (from changes to C2Net SSLeay, integrated by Mark Cox)]
8570 *) Add ASN1 and PEM code to support netscape certificate sequences.
8573 *) Add ASN1 and PEM code to support netscape certificate sequences.
8576 *) Add several PKIX and private extended key usage OIDs.
8579 *) Modify the 'ca' program to handle the new extension code. Modify
8580 openssl.cnf for new extension format, add comments.
8583 *) More X509 V3 changes. Fix typo in v3_bitstr.c. Add support to 'req'
8584 and add a sample to openssl.cnf so req -x509 now adds appropriate
8588 *) Continued X509 V3 changes. Add to other makefiles, integrate with the
8589 error code, add initial support to X509_print() and x509 application.
8592 *) Takes a deep breath and start addding X509 V3 extension support code. Add
8593 files in crypto/x509v3. Move original stuff to crypto/x509v3/old. All this
8594 stuff is currently isolated and isn't even compiled yet.
8597 *) Continuing patches for GeneralizedTime. Fix up certificate and CRL
8598 ASN1 to use ASN1_TIME and modify print routines to use ASN1_TIME_print.
8599 Removed the versions check from X509 routines when loading extensions:
8600 this allows certain broken certificates that don't set the version
8601 properly to be processed.
8604 *) Deal with irritating shit to do with dependencies, in YAAHW (Yet Another
8605 Ad Hoc Way) - Makefile.ssls now all contain local dependencies, which
8606 can still be regenerated with "make depend".
8609 *) Spelling mistake in C version of CAST-128.
8610 [Ben Laurie, reported by Jeremy Hylton <jeremy@cnri.reston.va.us>]
8612 *) Changes to the error generation code. The perl script err-code.pl
8613 now reads in the old error codes and retains the old numbers, only
8614 adding new ones if necessary. It also only changes the .err files if new
8615 codes are added. The makefiles have been modified to only insert errors
8616 when needed (to avoid needlessly modifying header files). This is done
8617 by only inserting errors if the .err file is newer than the auto generated
8618 C file. To rebuild all the error codes from scratch (the old behaviour)
8619 either modify crypto/Makefile.ssl to pass the -regen flag to err_code.pl
8620 or delete all the .err files.
8623 *) CAST-128 was incorrectly implemented for short keys. The C version has
8624 been fixed, but is untested. The assembler versions are also fixed, but
8625 new assembler HAS NOT BEEN GENERATED FOR WIN32 - the Makefile needs fixing
8626 to regenerate it if needed.
8627 [Ben Laurie, reported (with fix for C version) by Jun-ichiro itojun
8628 Hagino <itojun@kame.net>]
8630 *) File was opened incorrectly in randfile.c.
8631 [Ulf Möller <ulf@fitug.de>]
8633 *) Beginning of support for GeneralizedTime. d2i, i2d, check and print
8634 functions. Also ASN1_TIME suite which is a CHOICE of UTCTime or
8635 GeneralizedTime. ASN1_TIME is the proper type used in certificates et
8636 al: it's just almost always a UTCTime. Note this patch adds new error
8637 codes so do a "make errors" if there are problems.
8640 *) Correct Linux 1 recognition in config.
8641 [Ulf Möller <ulf@fitug.de>]
8643 *) Remove pointless MD5 hash when using DSA keys in ca.
8644 [Anonymous <nobody@replay.com>]
8646 *) Generate an error if given an empty string as a cert directory. Also
8647 generate an error if handed NULL (previously returned 0 to indicate an
8648 error, but didn't set one).
8649 [Ben Laurie, reported by Anonymous <nobody@replay.com>]
8651 *) Add prototypes to SSL methods. Make SSL_write's buffer const, at last.
8654 *) Fix the dummy function BN_ref_mod_exp() in rsaref.c to have the correct
8655 parameters. This was causing a warning which killed off the Win32 compile.
8658 *) Remove C++ style comments from crypto/bn/bn_local.h.
8659 [Neil Costigan <neil.costigan@celocom.com>]
8661 *) The function OBJ_txt2nid was broken. It was supposed to return a nid
8662 based on a text string, looking up short and long names and finally
8663 "dot" format. The "dot" format stuff didn't work. Added new function
8664 OBJ_txt2obj to do the same but return an ASN1_OBJECT and rewrote
8665 OBJ_txt2nid to use it. OBJ_txt2obj can also return objects even if the
8666 OID is not part of the table.
8669 *) Add prototypes to X509 lookup/verify methods, fixing a bug in
8670 X509_LOOKUP_by_alias().
8673 *) Sort openssl functions by name.
8676 *) Get the gendsa program working (hopefully) and add it to app list. Remove
8677 encryption from sample DSA keys (in case anyone is interested the password
8681 *) Make _all_ *_free functions accept a NULL pointer.
8682 [Frans Heymans <fheymans@isaserver.be>]
8684 *) If a DH key is generated in s3_srvr.c, don't blow it by trying to use
8686 [Anonymous <nobody@replay.com>]
8688 *) s_server should send the CAfile as acceptable CAs, not its own cert.
8689 [Bodo Moeller <3moeller@informatik.uni-hamburg.de>]
8691 *) Don't blow it for numeric -newkey arguments to apps/req.
8692 [Bodo Moeller <3moeller@informatik.uni-hamburg.de>]
8694 *) Temp key "for export" tests were wrong in s3_srvr.c.
8695 [Anonymous <nobody@replay.com>]
8697 *) Add prototype for temp key callback functions
8698 SSL_CTX_set_tmp_{rsa,dh}_callback().
8701 *) Make DH_free() tolerate being passed a NULL pointer (like RSA_free() and
8702 DSA_free()). Make X509_PUBKEY_set() check for errors in d2i_PublicKey().
8705 *) X509_name_add_entry() freed the wrong thing after an error.
8706 [Arne Ansper <arne@ats.cyber.ee>]
8708 *) rsa_eay.c would attempt to free a NULL context.
8709 [Arne Ansper <arne@ats.cyber.ee>]
8711 *) BIO_s_socket() had a broken should_retry() on Windoze.
8712 [Arne Ansper <arne@ats.cyber.ee>]
8714 *) BIO_f_buffer() didn't pass on BIO_CTRL_FLUSH.
8715 [Arne Ansper <arne@ats.cyber.ee>]
8717 *) Make sure the already existing X509_STORE->depth variable is initialized
8718 in X509_STORE_new(), but document the fact that this variable is still
8719 unused in the certificate verification process.
8720 [Ralf S. Engelschall]
8722 *) Fix the various library and apps files to free up pkeys obtained from
8723 X509_PUBKEY_get() et al. Also allow x509.c to handle netscape extensions.
8726 *) Fix reference counting in X509_PUBKEY_get(). This makes
8727 demos/maurice/example2.c work, amongst others, probably.
8728 [Steve Henson and Ben Laurie]
8730 *) First cut of a cleanup for apps/. First the `ssleay' program is now named
8731 `openssl' and second, the shortcut symlinks for the `openssl <command>'
8732 are no longer created. This way we have a single and consistent command
8733 line interface `openssl <command>', similar to `cvs <command>'.
8734 [Ralf S. Engelschall, Paul Sutton and Ben Laurie]
8736 *) ca.c: move test for DSA keys inside #ifndef NO_DSA. Make pubkey
8737 BIT STRING wrapper always have zero unused bits.
8740 *) Add CA.pl, perl version of CA.sh, add extended key usage OID.
8743 *) Make the top-level INSTALL documentation easier to understand.
8746 *) Makefiles updated to exit if an error occurs in a sub-directory
8747 make (including if user presses ^C) [Paul Sutton]
8749 *) Make Montgomery context stuff explicit in RSA data structure.
8752 *) Fix build order of pem and err to allow for generated pem.h.
8755 *) Fix renumbering bug in X509_NAME_delete_entry().
8758 *) Enhanced the err-ins.pl script so it makes the error library number
8759 global and can add a library name. This is needed for external ASN1 and
8760 other error libraries.
8763 *) Fixed sk_insert which never worked properly.
8766 *) Fix ASN1 macros so they can handle indefinite length construted
8767 EXPLICIT tags. Some non standard certificates use these: they can now
8771 *) Merged the various old/obsolete SSLeay documentation files (doc/xxx.doc)
8772 into a single doc/ssleay.txt bundle. This way the information is still
8773 preserved but no longer messes up this directory. Now it's new room for
8774 the new set of documenation files.
8775 [Ralf S. Engelschall]
8777 *) SETs were incorrectly DER encoded. This was a major pain, because they
8778 shared code with SEQUENCEs, which aren't coded the same. This means that
8779 almost everything to do with SETs or SEQUENCEs has either changed name or
8780 number of arguments.
8781 [Ben Laurie, based on a partial fix by GP Jayan <gp@nsj.co.jp>]
8783 *) Fix test data to work with the above.
8786 *) Fix the RSA header declarations that hid a bug I fixed in 0.9.0b but
8787 was already fixed by Eric for 0.9.1 it seems.
8788 [Ben Laurie - pointed out by Ulf Möller <ulf@fitug.de>]
8790 *) Autodetect FreeBSD3.
8793 *) Fix various bugs in Configure. This affects the following platforms:
8797 unixware-2.0-pentium
8801 *) Eliminate generated files from CVS. Reorder tests to regenerate files
8802 before they are needed.
8805 *) Generate Makefile.ssl from Makefile.org (to keep CVS happy).
8809 Changes between 0.9.1b and 0.9.1c [23-Dec-1998]
8811 *) Added OPENSSL_VERSION_NUMBER to crypto/crypto.h and
8812 changed SSLeay to OpenSSL in version strings.
8813 [Ralf S. Engelschall]
8815 *) Some fixups to the top-level documents.
8818 *) Fixed the nasty bug where rsaref.h was not found under compile-time
8819 because the symlink to include/ was missing.
8820 [Ralf S. Engelschall]
8822 *) Incorporated the popular no-RSA/DSA-only patches
8823 which allow to compile a RSA-free SSLeay.
8824 [Andrew Cooke / Interrader Ldt., Ralf S. Engelschall]
8826 *) Fixed nasty rehash problem under `make -f Makefile.ssl links'
8827 when "ssleay" is still not found.
8828 [Ralf S. Engelschall]
8830 *) Added more platforms to Configure: Cray T3E, HPUX 11,
8831 [Ralf S. Engelschall, Beckmann <beckman@acl.lanl.gov>]
8833 *) Updated the README file.
8834 [Ralf S. Engelschall]
8836 *) Added various .cvsignore files in the CVS repository subdirs
8837 to make a "cvs update" really silent.
8838 [Ralf S. Engelschall]
8840 *) Recompiled the error-definition header files and added
8841 missing symbols to the Win32 linker tables.
8842 [Ralf S. Engelschall]
8844 *) Cleaned up the top-level documents;
8845 o new files: CHANGES and LICENSE
8846 o merged VERSION, HISTORY* and README* files a CHANGES.SSLeay
8847 o merged COPYRIGHT into LICENSE
8848 o removed obsolete TODO file
8849 o renamed MICROSOFT to INSTALL.W32
8850 [Ralf S. Engelschall]
8852 *) Removed dummy files from the 0.9.1b source tree:
8853 crypto/asn1/x crypto/bio/cd crypto/bio/fg crypto/bio/grep crypto/bio/vi
8854 crypto/bn/asm/......add.c crypto/bn/asm/a.out crypto/dsa/f crypto/md5/f
8855 crypto/pem/gmon.out crypto/perlasm/f crypto/pkcs7/build crypto/rsa/f
8856 crypto/sha/asm/f crypto/threads/f ms/zzz ssl/f ssl/f.mak test/f
8857 util/f.mak util/pl/f util/pl/f.mak crypto/bf/bf_locl.old apps/f
8858 [Ralf S. Engelschall]
8860 *) Added various platform portability fixes.
8863 *) The Genesis of the OpenSSL rpject:
8864 We start with the latest (unreleased) SSLeay version 0.9.1b which Eric A.
8865 Young and Tim J. Hudson created while they were working for C2Net until
8867 [The OpenSSL Project]
8870 Changes between 0.9.0b and 0.9.1b [not released]
8872 *) Updated a few CA certificates under certs/
8875 *) Changed some BIGNUM api stuff.
8878 *) Various platform ports: OpenBSD, Ultrix, IRIX 64bit, NetBSD,
8879 DGUX x86, Linux Alpha, etc.
8882 *) New COMP library [crypto/comp/] for SSL Record Layer Compression:
8883 RLE (dummy implemented) and ZLIB (really implemented when ZLIB is
8887 *) Add -strparse option to asn1pars program which parses nested
8889 [Dr Stephen Henson <shenson@bigfoot.com>]
8891 *) Added "oid_file" to ssleay.cnf for "ca" and "req" programs.
8894 *) DSA fix for "ca" program.
8897 *) Added "-genkey" option to "dsaparam" program.
8900 *) Added RIPE MD160 (rmd160) message digest.
8903 *) Added -a (all) option to "ssleay version" command.
8906 *) Added PLATFORM define which is the id given to Configure.
8909 *) Added MemCheck_XXXX functions to crypto/mem.c for memory checking.
8912 *) Extended the ASN.1 parser routines.
8915 *) Extended BIO routines to support REUSEADDR, seek, tell, etc.
8918 *) Added a BN_CTX to the BN library.
8921 *) Fixed the weak key values in DES library
8924 *) Changed API in EVP library for cipher aliases.
8927 *) Added support for RC2/64bit cipher.
8930 *) Converted the lhash library to the crypto/mem.c functions.
8933 *) Added more recognized ASN.1 object ids.
8936 *) Added more RSA padding checks for SSL/TLS.
8939 *) Added BIO proxy/filter functionality.
8942 *) Added extra_certs to SSL_CTX which can be used
8943 send extra CA certificates to the client in the CA cert chain sending
8944 process. It can be configured with SSL_CTX_add_extra_chain_cert().
8947 *) Now Fortezza is denied in the authentication phase because
8948 this is key exchange mechanism is not supported by SSLeay at all.
8951 *) Additional PKCS1 checks.
8954 *) Support the string "TLSv1" for all TLS v1 ciphers.
8957 *) Added function SSL_get_ex_data_X509_STORE_CTX_idx() which gives the
8958 ex_data index of the SSL context in the X509_STORE_CTX ex_data.
8961 *) Fixed a few memory leaks.
8964 *) Fixed various code and comment typos.
8967 *) A minor bug in ssl/s3_clnt.c where there would always be 4 0
8968 bytes sent in the client random.
8969 [Edward Bishop <ebishop@spyglass.com>]