5 Changes between 0.9.8j and 0.9.9 [xx XXX xxxx]
7 *) Type-checked OBJ_bsearch_ex.
10 *) Type-checked OBJ_bsearch. Also some constification necessitated
11 by type-checking. Still to come: TXT_DB, bsearch(?),
12 OBJ_bsearch_ex, qsort, CRYPTO_EX_DATA, ASN1_VALUE, ASN1_STRING,
16 *) New function OPENSSL_gmtime_adj() to add a specific number of days and
17 seconds to a tm structure directly, instead of going through OS
18 specific date routines. This avoids any issues with OS routines such
19 as the year 2038 bug. New *_adj() functions for ASN1 time structures
20 and X509_time_adj_ex() to cover the extended range. The existing
21 X509_time_adj() is still usable and will no longer have any date issues.
24 *) Delta CRL support. New use deltas option which will attempt to locate
25 and search any appropriate delta CRLs available.
27 This work was sponsored by Google.
30 *) Support for CRLs partitioned by reason code. Reorganise CRL processing
31 code and add additional score elements. Validate alternate CRL paths
32 as part of the CRL checking and indicate a new error "CRL path validation
33 error" in this case. Applications wanting additional details can use
34 the verify callback and check the new "parent" field. If this is not
35 NULL CRL path validation is taking place. Existing applications wont
36 see this because it requires extended CRL support which is off by
39 This work was sponsored by Google.
42 *) Support for freshest CRL extension.
44 This work was sponsored by Google.
47 *) Initial indirect CRL support. Currently only supported in the CRLs
48 passed directly and not via lookup. Process certificate issuer
49 CRL entry extension and lookup CRL entries by bother issuer name
50 and serial number. Check and process CRL issuer entry in IDP extension.
52 This work was sponsored by Google.
55 *) Add support for distinct certificate and CRL paths. The CRL issuer
56 certificate is validated separately in this case. Only enabled if
57 an extended CRL support flag is set: this flag will enable additional
58 CRL functionality in future.
60 This work was sponsored by Google.
63 *) Add support for policy mappings extension.
65 This work was sponsored by Google.
68 *) Fixes to pathlength constraint, self issued certificate handling,
69 policy processing to align with RFC3280 and PKITS tests.
71 This work was sponsored by Google.
74 *) Support for name constraints certificate extension. DN, email, DNS
75 and URI types are currently supported.
77 This work was sponsored by Google.
80 *) To cater for systems that provide a pointer-based thread ID rather
81 than numeric, deprecate the current numeric thread ID mechanism and
82 replace it with a structure and associated callback type. This
83 mechanism allows a numeric "hash" to be extracted from a thread ID in
84 either case, and on platforms where pointers are larger than 'long',
85 mixing is done to help ensure the numeric 'hash' is usable even if it
86 can't be guaranteed unique. The default mechanism is to use "&errno"
87 as a pointer-based thread ID to distinguish between threads.
89 Applications that want to provide their own thread IDs should now use
90 CRYPTO_THREADID_set_callback() to register a callback that will call
91 either CRYPTO_THREADID_set_numeric() or CRYPTO_THREADID_set_pointer().
93 Note that ERR_remove_state() is now deprecated, because it is tied
94 to the assumption that thread IDs are numeric. ERR_remove_state(0)
95 to free the current thread's error state should be replaced by
96 ERR_remove_thread_state(NULL).
98 (This new approach replaces the functions CRYPTO_set_idptr_callback(),
99 CRYPTO_get_idptr_callback(), and CRYPTO_thread_idptr() that existed in
100 OpenSSL 0.9.9-dev between June 2006 and August 2008. Also, if an
101 application was previously providing a numeric thread callback that
102 was inappropriate for distinguishing threads, then uniqueness might
103 have been obtained with &errno that happened immediately in the
104 intermediate development versions of OpenSSL; this is no longer the
105 case, the numeric thread callback will now override the automatic use
107 [Geoff Thorpe, with help from Bodo Moeller]
109 *) Initial support for different CRL issuing certificates. This covers a
110 simple case where the self issued certificates in the chain exist and
111 the real CRL issuer is higher in the existing chain.
113 This work was sponsored by Google.
116 *) Removed effectively defunct crypto/store from the build.
119 *) Revamp of STACK to provide stronger type-checking. Still to come:
120 TXT_DB, bsearch(?), OBJ_bsearch, qsort, CRYPTO_EX_DATA, ASN1_VALUE,
121 ASN1_STRING, CONF_VALUE.
124 *) Add a new SSL_MODE_RELEASE_BUFFERS mode flag to release unused buffer
125 RAM on SSL connections. This option can save about 34k per idle SSL.
128 *) Revamp of LHASH to provide stronger type-checking. Still to come:
129 STACK, TXT_DB, bsearch, qsort.
132 *) Initial support for Cryptographic Message Syntax (aka CMS) based
133 on RFC3850, RFC3851 and RFC3852. New cms directory and cms utility,
134 support for data, signedData, compressedData, digestedData and
135 encryptedData, envelopedData types included. Scripts to check against
136 RFC4134 examples draft and interop and consistency checks of many
137 content types and variants.
140 *) Add options to enc utility to support use of zlib compression BIO.
143 *) Extend mk1mf to support importing of options and assembly language
144 files from Configure script, currently only included in VC-WIN32.
145 The assembly language rules can now optionally generate the source
146 files from the associated perl scripts.
149 *) Implement remaining functionality needed to support GOST ciphersuites.
150 Interop testing has been performed using CryptoPro implementations.
151 [Victor B. Wagner <vitus@cryptocom.ru>]
153 *) s390x assembler pack.
156 *) ARMv4 assembler pack. ARMv4 refers to v4 and later ISA, not CPU
160 *) Implement Opaque PRF Input TLS extension as specified in
161 draft-rescorla-tls-opaque-prf-input-00.txt. Since this is not an
162 official specification yet and no extension type assignment by
163 IANA exists, this extension (for now) will have to be explicitly
164 enabled when building OpenSSL by providing the extension number
165 to use. For example, specify an option
167 -DTLSEXT_TYPE_opaque_prf_input=0x9527
169 to the "config" or "Configure" script to enable the extension,
170 assuming extension number 0x9527 (which is a completely arbitrary
171 and unofficial assignment based on the MD5 hash of the Internet
172 Draft). Note that by doing so, you potentially lose
173 interoperability with other TLS implementations since these might
174 be using the same extension number for other purposes.
176 SSL_set_tlsext_opaque_prf_input(ssl, src, len) is used to set the
177 opaque PRF input value to use in the handshake. This will create
178 an interal copy of the length-'len' string at 'src', and will
179 return non-zero for success.
181 To get more control and flexibility, provide a callback function
184 SSL_CTX_set_tlsext_opaque_prf_input_callback(ctx, cb)
185 SSL_CTX_set_tlsext_opaque_prf_input_callback_arg(ctx, arg)
189 int (*cb)(SSL *, void *peerinput, size_t len, void *arg);
192 Callback function 'cb' will be called in handshakes, and is
193 expected to use SSL_set_tlsext_opaque_prf_input() as appropriate.
194 Argument 'arg' is for application purposes (the value as given to
195 SSL_CTX_set_tlsext_opaque_prf_input_callback_arg() will directly
196 be provided to the callback function). The callback function
197 has to return non-zero to report success: usually 1 to use opaque
198 PRF input just if possible, or 2 to enforce use of the opaque PRF
199 input. In the latter case, the library will abort the handshake
200 if opaque PRF input is not successfully negotiated.
202 Arguments 'peerinput' and 'len' given to the callback function
203 will always be NULL and 0 in the case of a client. A server will
204 see the client's opaque PRF input through these variables if
205 available (NULL and 0 otherwise). Note that if the server
206 provides an opaque PRF input, the length must be the same as the
207 length of the client's opaque PRF input.
209 Note that the callback function will only be called when creating
210 a new session (session resumption can resume whatever was
211 previously negotiated), and will not be called in SSL 2.0
212 handshakes; thus, SSL_CTX_set_options(ctx, SSL_OP_NO_SSLv2) or
213 SSL_set_options(ssl, SSL_OP_NO_SSLv2) is especially recommended
214 for applications that need to enforce opaque PRF input.
218 *) Update ssl code to support digests other than SHA1+MD5 for handshake
221 [Victor B. Wagner <vitus@cryptocom.ru>]
223 *) Add RFC4507 support to OpenSSL. This includes the corrections in
224 RFC4507bis. The encrypted ticket format is an encrypted encoded
225 SSL_SESSION structure, that way new session features are automatically
228 If a client application caches session in an SSL_SESSION structure
229 support is transparent because tickets are now stored in the encoded
232 The SSL_CTX structure automatically generates keys for ticket
233 protection in servers so again support should be possible
234 with no application modification.
236 If a client or server wishes to disable RFC4507 support then the option
237 SSL_OP_NO_TICKET can be set.
239 Add a TLS extension debugging callback to allow the contents of any client
240 or server extensions to be examined.
242 This work was sponsored by Google.
245 *) Final changes to avoid use of pointer pointer casts in OpenSSL.
246 OpenSSL should now compile cleanly on gcc 4.2
247 [Peter Hartley <pdh@utter.chaos.org.uk>, Steve Henson]
249 *) Update SSL library to use new EVP_PKEY MAC API. Include generic MAC
250 support including streaming MAC support: this is required for GOST
252 [Victor B. Wagner <vitus@cryptocom.ru>, Steve Henson]
254 *) Add option -stream to use PKCS#7 streaming in smime utility. New
255 function i2d_PKCS7_bio_stream() and PEM_write_PKCS7_bio_stream()
256 to output in BER and PEM format.
259 *) Experimental support for use of HMAC via EVP_PKEY interface. This
260 allows HMAC to be handled via the EVP_DigestSign*() interface. The
261 EVP_PKEY "key" in this case is the HMAC key, potentially allowing
262 ENGINE support for HMAC keys which are unextractable. New -mac and
263 -macopt options to dgst utility.
266 *) New option -sigopt to dgst utility. Update dgst to use
267 EVP_Digest{Sign,Verify}*. These two changes make it possible to use
268 alternative signing paramaters such as X9.31 or PSS in the dgst
272 *) Change ssl_cipher_apply_rule(), the internal function that does
273 the work each time a ciphersuite string requests enabling
274 ("foo+bar"), moving ("+foo+bar"), disabling ("-foo+bar", or
275 removing ("!foo+bar") a class of ciphersuites: Now it maintains
276 the order of disabled ciphersuites such that those ciphersuites
277 that most recently went from enabled to disabled not only stay
278 in order with respect to each other, but also have higher priority
279 than other disabled ciphersuites the next time ciphersuites are
282 This means that you can now say, e.g., "PSK:-PSK:HIGH" to enable
283 the same ciphersuites as with "HIGH" alone, but in a specific
284 order where the PSK ciphersuites come first (since they are the
285 most recently disabled ciphersuites when "HIGH" is parsed).
287 Also, change ssl_create_cipher_list() (using this new
288 funcionality) such that between otherwise identical
289 cihpersuites, ephemeral ECDH is preferred over ephemeral DH in
293 *) Change ssl_create_cipher_list() so that it automatically
294 arranges the ciphersuites in reasonable order before starting
295 to process the rule string. Thus, the definition for "DEFAULT"
296 (SSL_DEFAULT_CIPHER_LIST) now is just "ALL:!aNULL:!eNULL", but
297 remains equivalent to "AES:ALL:!aNULL:!eNULL:+aECDH:+kRSA:+RC4:@STRENGTH".
298 This makes it much easier to arrive at a reasonable default order
299 in applications for which anonymous ciphers are OK (meaning
300 that you can't actually use DEFAULT).
301 [Bodo Moeller; suggested by Victor Duchovni]
303 *) Split the SSL/TLS algorithm mask (as used for ciphersuite string
304 processing) into multiple integers instead of setting
305 "SSL_MKEY_MASK" bits, "SSL_AUTH_MASK" bits, "SSL_ENC_MASK",
306 "SSL_MAC_MASK", and "SSL_SSL_MASK" bits all in a single integer.
307 (These masks as well as the individual bit definitions are hidden
308 away into the non-exported interface ssl/ssl_locl.h, so this
309 change to the definition of the SSL_CIPHER structure shouldn't
310 affect applications.) This give us more bits for each of these
311 categories, so there is no longer a need to coagulate AES128 and
312 AES256 into a single algorithm bit, and to coagulate Camellia128
313 and Camellia256 into a single algorithm bit, which has led to all
316 Thus, among other things, the kludge introduced in 0.9.7m and
317 0.9.8e for masking out AES256 independently of AES128 or masking
318 out Camellia256 independently of AES256 is not needed here in 0.9.9.
320 With the change, we also introduce new ciphersuite aliases that
321 so far were missing: "AES128", "AES256", "CAMELLIA128", and
325 *) Add support for dsa-with-SHA224 and dsa-with-SHA256.
326 Use the leftmost N bytes of the signature input if the input is
327 larger than the prime q (with N being the size in bytes of q).
330 *) Very *very* experimental PKCS#7 streaming encoder support. Nothing uses
331 it yet and it is largely untested.
334 *) Add support for the ecdsa-with-SHA224/256/384/512 signature types.
337 *) Initial incomplete changes to avoid need for function casts in OpenSSL
338 some compilers (gcc 4.2 and later) reject their use. Safestack is
339 reimplemented. Update ASN1 to avoid use of legacy functions.
342 *) Win32/64 targets are linked with Winsock2.
345 *) Add an X509_CRL_METHOD structure to allow CRL processing to be redirected
346 to external functions. This can be used to increase CRL handling
347 efficiency especially when CRLs are very large by (for example) storing
348 the CRL revoked certificates in a database.
351 *) Overhaul of by_dir code. Add support for dynamic loading of CRLs so
352 new CRLs added to a directory can be used. New command line option
353 -verify_return_error to s_client and s_server. This causes real errors
354 to be returned by the verify callback instead of carrying on no matter
355 what. This reflects the way a "real world" verify callback would behave.
358 *) GOST engine, supporting several GOST algorithms and public key formats.
359 Kindly donated by Cryptocom.
362 *) Partial support for Issuing Distribution Point CRL extension. CRLs
363 partitioned by DP are handled but no indirect CRL or reason partitioning
364 (yet). Complete overhaul of CRL handling: now the most suitable CRL is
365 selected via a scoring technique which handles IDP and AKID in CRLs.
368 *) New X509_STORE_CTX callbacks lookup_crls() and lookup_certs() which
369 will ultimately be used for all verify operations: this will remove the
370 X509_STORE dependency on certificate verification and allow alternative
371 lookup methods. X509_STORE based implementations of these two callbacks.
374 *) Allow multiple CRLs to exist in an X509_STORE with matching issuer names.
375 Modify get_crl() to find a valid (unexpired) CRL if possible.
378 *) New function X509_CRL_match() to check if two CRLs are identical. Normally
379 this would be called X509_CRL_cmp() but that name is already used by
380 a function that just compares CRL issuer names. Cache several CRL
381 extensions in X509_CRL structure and cache CRLDP in X509.
384 *) Store a "canonical" representation of X509_NAME structure (ASN1 Name)
385 this maps equivalent X509_NAME structures into a consistent structure.
386 Name comparison can then be performed rapidly using memcmp().
389 *) Non-blocking OCSP request processing. Add -timeout option to ocsp
393 *) Allow digests to supply their own micalg string for S/MIME type using
394 the ctrl EVP_MD_CTRL_MICALG.
397 *) During PKCS7 signing pass the PKCS7 SignerInfo structure to the
398 EVP_PKEY_METHOD before and after signing via the EVP_PKEY_CTRL_PKCS7_SIGN
399 ctrl. It can then customise the structure before and/or after signing
403 *) New function OBJ_add_sigid() to allow application defined signature OIDs
404 to be added to OpenSSLs internal tables. New function OBJ_sigid_free()
405 to free up any added signature OIDs.
408 *) New functions EVP_CIPHER_do_all(), EVP_CIPHER_do_all_sorted(),
409 EVP_MD_do_all() and EVP_MD_do_all_sorted() to enumerate internal
410 digest and cipher tables. New options added to openssl utility:
411 list-message-digest-algorithms and list-cipher-algorithms.
414 *) Change the array representation of binary polynomials: the list
415 of degrees of non-zero coefficients is now terminated with -1.
416 Previously it was terminated with 0, which was also part of the
417 value; thus, the array representation was not applicable to
418 polynomials where t^0 has coefficient zero. This change makes
419 the array representation useful in a more general context.
422 *) Various modifications and fixes to SSL/TLS cipher string
423 handling. For ECC, the code now distinguishes between fixed ECDH
424 with RSA certificates on the one hand and with ECDSA certificates
425 on the other hand, since these are separate ciphersuites. The
426 unused code for Fortezza ciphersuites has been removed.
428 For consistency with EDH, ephemeral ECDH is now called "EECDH"
429 (not "ECDHE"). For consistency with the code for DH
430 certificates, use of ECDH certificates is now considered ECDH
431 authentication, not RSA or ECDSA authentication (the latter is
432 merely the CA's signing algorithm and not actively used in the
435 The temporary ciphersuite alias "ECCdraft" is no longer
436 available, and ECC ciphersuites are no longer excluded from "ALL"
437 and "DEFAULT". The following aliases now exist for RFC 4492
438 ciphersuites, most of these by analogy with the DH case:
440 kECDHr - ECDH cert, signed with RSA
441 kECDHe - ECDH cert, signed with ECDSA
442 kECDH - ECDH cert (signed with either RSA or ECDSA)
443 kEECDH - ephemeral ECDH
444 ECDH - ECDH cert or ephemeral ECDH
450 AECDH - anonymous ECDH
451 EECDH - non-anonymous ephemeral ECDH (equivalent to "kEECDH:-AECDH")
455 *) Add additional S/MIME capabilities for AES and GOST ciphers if supported.
456 Use correct micalg parameters depending on digest(s) in signed message.
459 *) Add engine support for EVP_PKEY_ASN1_METHOD. Add functions to process
460 an ENGINE asn1 method. Support ENGINE lookups in the ASN1 code.
463 *) Initial engine support for EVP_PKEY_METHOD. New functions to permit
464 an engine to register a method. Add ENGINE lookups for methods and
465 functional reference processing.
468 *) New functions EVP_Digest{Sign,Verify)*. These are enchance versions of
469 EVP_{Sign,Verify}* which allow an application to customise the signature
473 *) New -resign option to smime utility. This adds one or more signers
474 to an existing PKCS#7 signedData structure. Also -md option to use an
475 alternative message digest algorithm for signing.
478 *) Tidy up PKCS#7 routines and add new functions to make it easier to
479 create PKCS7 structures containing multiple signers. Update smime
480 application to support multiple signers.
483 *) New -macalg option to pkcs12 utility to allow setting of an alternative
487 *) Initial support for PKCS#5 v2.0 PRFs other than default SHA1 HMAC.
488 Reorganize PBE internals to lookup from a static table using NIDs,
489 add support for HMAC PBE OID translation. Add a EVP_CIPHER ctrl:
490 EVP_CTRL_PBE_PRF_NID this allows a cipher to specify an alternative
491 PRF which will be automatically used with PBES2.
494 *) Replace the algorithm specific calls to generate keys in "req" with the
498 *) Update PKCS#7 enveloped data routines to use new API. This is now
499 supported by any public key method supporting the encrypt operation. A
500 ctrl is added to allow the public key algorithm to examine or modify
501 the PKCS#7 RecipientInfo structure if it needs to: for RSA this is
505 *) Add a ctrl to asn1 method to allow a public key algorithm to express
506 a default digest type to use. In most cases this will be SHA1 but some
507 algorithms (such as GOST) need to specify an alternative digest. The
508 return value indicates how strong the prefernce is 1 means optional and
509 2 is mandatory (that is it is the only supported type). Modify
510 ASN1_item_sign() to accept a NULL digest argument to indicate it should
511 use the default md. Update openssl utilities to use the default digest
512 type for signing if it is not explicitly indicated.
515 *) Use OID cross reference table in ASN1_sign() and ASN1_verify(). New
516 EVP_MD flag EVP_MD_FLAG_PKEY_METHOD_SIGNATURE. This uses the relevant
517 signing method from the key type. This effectively removes the link
518 between digests and public key types.
521 *) Add an OID cross reference table and utility functions. Its purpose is to
522 translate between signature OIDs such as SHA1WithrsaEncryption and SHA1,
523 rsaEncryption. This will allow some of the algorithm specific hackery
524 needed to use the correct OID to be removed.
527 *) Remove algorithm specific dependencies when setting PKCS7_SIGNER_INFO
528 structures for PKCS7_sign(). They are now set up by the relevant public
532 *) Add provisional EC pkey method with support for ECDSA and ECDH.
535 *) Add support for key derivation (agreement) in the API, DH method and
539 *) Add DSA pkey method and DH pkey methods, extend DH ASN1 method to support
540 public and private key formats. As a side effect these add additional
541 command line functionality not previously available: DSA signatures can be
542 generated and verified using pkeyutl and DH key support and generation in
547 [Oliver Tappe <zooey@hirschkaefer.de>]
549 *) New make target "install_html_docs" installs HTML renditions of the
551 [Oliver Tappe <zooey@hirschkaefer.de>]
553 *) New utility "genpkey" this is analagous to "genrsa" etc except it can
554 generate keys for any algorithm. Extend and update EVP_PKEY_METHOD to
555 support key and parameter generation and add initial key generation
556 functionality for RSA.
559 *) Add functions for main EVP_PKEY_method operations. The undocumented
560 functions EVP_PKEY_{encrypt,decrypt} have been renamed to
561 EVP_PKEY_{encrypt,decrypt}_old.
564 *) Initial definitions for EVP_PKEY_METHOD. This will be a high level public
565 key API, doesn't do much yet.
568 *) New function EVP_PKEY_asn1_get0_info() to retrieve information about
569 public key algorithms. New option to openssl utility:
570 "list-public-key-algorithms" to print out info.
573 *) Implement the Supported Elliptic Curves Extension for
574 ECC ciphersuites from draft-ietf-tls-ecc-12.txt.
577 *) Don't free up OIDs in OBJ_cleanup() if they are in use by EVP_MD or
578 EVP_CIPHER structures to avoid later problems in EVP_cleanup().
581 *) New utilities pkey and pkeyparam. These are similar to algorithm specific
582 utilities such as rsa, dsa, dsaparam etc except they process any key
586 *) Transfer public key printing routines to EVP_PKEY_ASN1_METHOD. New
587 functions EVP_PKEY_print_public(), EVP_PKEY_print_private(),
588 EVP_PKEY_print_param() to print public key data from an EVP_PKEY
592 *) Initial support for pluggable public key ASN1.
593 De-spaghettify the public key ASN1 handling. Move public and private
594 key ASN1 handling to a new EVP_PKEY_ASN1_METHOD structure. Relocate
595 algorithm specific handling to a single module within the relevant
596 algorithm directory. Add functions to allow (near) opaque processing
597 of public and private key structures.
600 *) Implement the Supported Point Formats Extension for
601 ECC ciphersuites from draft-ietf-tls-ecc-12.txt.
604 *) Add initial support for RFC 4279 PSK TLS ciphersuites. Add members
605 for the psk identity [hint] and the psk callback functions to the
606 SSL_SESSION, SSL and SSL_CTX structure.
609 PSK-RC4-SHA, PSK-3DES-EDE-CBC-SHA, PSK-AES128-CBC-SHA,
613 SSL_CTX_use_psk_identity_hint
614 SSL_get_psk_identity_hint
616 SSL_use_psk_identity_hint
618 [Mika Kousa and Pasi Eronen of Nokia Corporation]
620 *) Add RFC 3161 compliant time stamp request creation, response generation
621 and response verification functionality.
622 [Zoltán Glózik <zglozik@opentsa.org>, The OpenTSA Project]
624 *) Add initial support for TLS extensions, specifically for the server_name
625 extension so far. The SSL_SESSION, SSL_CTX, and SSL data structures now
626 have new members for a host name. The SSL data structure has an
627 additional member SSL_CTX *initial_ctx so that new sessions can be
628 stored in that context to allow for session resumption, even after the
629 SSL has been switched to a new SSL_CTX in reaction to a client's
630 server_name extension.
632 New functions (subject to change):
635 SSL_get_servername_type()
638 New CTRL codes and macros (subject to change):
640 SSL_CTRL_SET_TLSEXT_SERVERNAME_CB
641 - SSL_CTX_set_tlsext_servername_callback()
642 SSL_CTRL_SET_TLSEXT_SERVERNAME_ARG
643 - SSL_CTX_set_tlsext_servername_arg()
644 SSL_CTRL_SET_TLSEXT_HOSTNAME - SSL_set_tlsext_host_name()
646 openssl s_client has a new '-servername ...' option.
648 openssl s_server has new options '-servername_host ...', '-cert2 ...',
649 '-key2 ...', '-servername_fatal' (subject to change). This allows
650 testing the HostName extension for a specific single host name ('-cert'
651 and '-key' remain fallbacks for handshakes without HostName
652 negotiation). If the unrecogninzed_name alert has to be sent, this by
653 default is a warning; it becomes fatal with the '-servername_fatal'
656 [Peter Sylvester, Remy Allais, Christophe Renou]
658 *) Whirlpool hash implementation is added.
661 *) BIGNUM code on 64-bit SPARCv9 targets is switched from bn(64,64) to
662 bn(64,32). Because of instruction set limitations it doesn't have
663 any negative impact on performance. This was done mostly in order
664 to make it possible to share assembler modules, such as bn_mul_mont
665 implementations, between 32- and 64-bit builds without hassle.
668 *) Move code previously exiled into file crypto/ec/ec2_smpt.c
669 to ec2_smpl.c, and no longer require the OPENSSL_EC_BIN_PT_COMP
673 *) New candidate for BIGNUM assembler implementation, bn_mul_mont,
674 dedicated Montgomery multiplication procedure, is introduced.
675 BN_MONT_CTX is modified to allow bn_mul_mont to reach for higher
676 "64-bit" performance on certain 32-bit targets.
679 *) New option SSL_OP_NO_COMP to disable use of compression selectively
680 in SSL structures. New SSL ctrl to set maximum send fragment size.
681 Save memory by seeting the I/O buffer sizes dynamically instead of
682 using the maximum available value.
685 *) New option -V for 'openssl ciphers'. This prints the ciphersuite code
686 in addition to the text details.
689 *) Very, very preliminary EXPERIMENTAL support for printing of general
690 ASN1 structures. This currently produces rather ugly output and doesn't
691 handle several customised structures at all.
694 *) Integrated support for PVK file format and some related formats such
695 as MS PUBLICKEYBLOB and PRIVATEKEYBLOB. Command line switches to support
696 these in the 'rsa' and 'dsa' utilities.
699 *) Support for PKCS#1 RSAPublicKey format on rsa utility command line.
702 *) Remove the ancient ASN1_METHOD code. This was only ever used in one
703 place for the (very old) "NETSCAPE" format certificates which are now
704 handled using new ASN1 code equivalents.
707 *) Let the TLSv1_method() etc. functions return a 'const' SSL_METHOD
708 pointer and make the SSL_METHOD parameter in SSL_CTX_new,
709 SSL_CTX_set_ssl_version and SSL_set_ssl_method 'const'.
712 *) Modify CRL distribution points extension code to print out previously
713 unsupported fields. Enhance extension setting code to allow setting of
717 *) Add print and set support for Issuing Distribution Point CRL extension.
720 *) Change 'Configure' script to enable Camellia by default.
723 Changes between 0.9.8i and 0.9.8j [xx XXX xxxx]
725 *) Add JPAKE support, including demo authentication in s_client and
729 *) Set the comparison function in v3_addr_canonize().
730 [Rob Austein <sra@hactrn.net>]
732 *) Add support for XMPP STARTTLS in s_client.
733 [Philip Paeps <philip@freebsd.org>]
735 *) Change the server-side SSL_OP_NETSCAPE_REUSE_CIPHER_CHANGE_BUG behavior
736 to ensure that even with this option, only ciphersuites in the
737 server's preference list will be accepted. (Note that the option
738 applies only when resuming a session, so the earlier behavior was
739 just about the algorithm choice for symmetric cryptography.)
742 Changes between 0.9.8h and 0.9.8i [15 Sep 2008]
744 *) Fix a state transitition in s3_srvr.c and d1_srvr.c
745 (was using SSL3_ST_CW_CLNT_HELLO_B, should be ..._ST_SW_SRVR_...).
748 *) The fix in 0.9.8c that supposedly got rid of unsafe
749 double-checked locking was incomplete for RSA blinding,
750 addressing just one layer of what turns out to have been
751 doubly unsafe triple-checked locking.
753 So now fix this for real by retiring the MONT_HELPER macro
754 in crypto/rsa/rsa_eay.c.
756 [Bodo Moeller; problem pointed out by Marius Schilder]
758 *) Various precautionary measures:
760 - Avoid size_t integer overflow in HASH_UPDATE (md32_common.h).
762 - Avoid a buffer overflow in d2i_SSL_SESSION() (ssl_asn1.c).
763 (NB: This would require knowledge of the secret session ticket key
764 to exploit, in which case you'd be SOL either way.)
766 - Change bn_nist.c so that it will properly handle input BIGNUMs
767 outside the expected range.
769 - Enforce the 'num' check in BN_div() (bn_div.c) for non-BN_DEBUG
772 [Neel Mehta, Bodo Moeller]
774 *) Allow engines to be "soft loaded" - i.e. optionally don't die if
775 the load fails. Useful for distros.
776 [Ben Laurie and the FreeBSD team]
778 *) Add support for Local Machine Keyset attribute in PKCS#12 files.
781 *) Fix BN_GF2m_mod_arr() top-bit cleanup code.
784 *) Expand ENGINE to support engine supplied SSL client certificate functions.
786 This work was sponsored by Logica.
789 *) Add CryptoAPI ENGINE to support use of RSA and DSA keys held in Windows
790 keystores. Support for SSL/TLS client authentication too.
791 Not compiled unless enable-capieng specified to Configure.
793 This work was sponsored by Logica.
796 *) Fix bug in X509_ATTRIBUTE creation: dont set attribute using
797 ASN1_TYPE_set1 if MBSTRING flag set. This bug would crash certain
798 attribute creation routines such as certifcate requests and PKCS#12
802 Changes between 0.9.8g and 0.9.8h [28 May 2008]
804 *) Fix flaw if 'Server Key exchange message' is omitted from a TLS
805 handshake which could lead to a cilent crash as found using the
806 Codenomicon TLS test suite (CVE-2008-1672)
807 [Steve Henson, Mark Cox]
809 *) Fix double free in TLS server name extensions which could lead to
810 a remote crash found by Codenomicon TLS test suite (CVE-2008-0891)
813 *) Clear error queue in SSL_CTX_use_certificate_chain_file()
815 Clear the error queue to ensure that error entries left from
816 older function calls do not interfere with the correct operation.
817 [Lutz Jaenicke, Erik de Castro Lopo]
819 *) Remove root CA certificates of commercial CAs:
821 The OpenSSL project does not recommend any specific CA and does not
822 have any policy with respect to including or excluding any CA.
823 Therefore it does not make any sense to ship an arbitrary selection
824 of root CA certificates with the OpenSSL software.
827 *) RSA OAEP patches to fix two separate invalid memory reads.
828 The first one involves inputs when 'lzero' is greater than
829 'SHA_DIGEST_LENGTH' (it would read about SHA_DIGEST_LENGTH bytes
830 before the beginning of from). The second one involves inputs where
831 the 'db' section contains nothing but zeroes (there is a one-byte
832 invalid read after the end of 'db').
833 [Ivan Nestlerode <inestlerode@us.ibm.com>]
835 *) Partial backport from 0.9.9-dev:
837 Introduce bn_mul_mont (dedicated Montgomery multiplication
838 procedure) as a candidate for BIGNUM assembler implementation.
839 While 0.9.9-dev uses assembler for various architectures, only
840 x86_64 is available by default here in the 0.9.8 branch, and
841 32-bit x86 is available through a compile-time setting.
843 To try the 32-bit x86 assembler implementation, use Configure
844 option "enable-montasm" (which exists only for this backport).
846 As "enable-montasm" for 32-bit x86 disclaims code stability
847 anyway, in this constellation we activate additional code
848 backported from 0.9.9-dev for further performance improvements,
849 namely BN_from_montgomery_word. (To enable this otherwise,
850 e.g. x86_64, try "-DMONT_FROM_WORD___NON_DEFAULT_0_9_8_BUILD".)
852 [Andy Polyakov (backport partially by Bodo Moeller)]
854 *) Add TLS session ticket callback. This allows an application to set
855 TLS ticket cipher and HMAC keys rather than relying on hardcoded fixed
856 values. This is useful for key rollover for example where several key
857 sets may exist with different names.
860 *) Reverse ENGINE-internal logic for caching default ENGINE handles.
861 This was broken until now in 0.9.8 releases, such that the only way
862 a registered ENGINE could be used (assuming it initialises
863 successfully on the host) was to explicitly set it as the default
864 for the relevant algorithms. This is in contradiction with 0.9.7
865 behaviour and the documentation. With this fix, when an ENGINE is
866 registered into a given algorithm's table of implementations, the
867 'uptodate' flag is reset so that auto-discovery will be used next
868 time a new context for that algorithm attempts to select an
870 [Ian Lister (tweaked by Geoff Thorpe)]
872 *) Backport of CMS code to OpenSSL 0.9.8. This differs from the 0.9.9
873 implemention in the following ways:
875 Lack of EVP_PKEY_ASN1_METHOD means algorithm parameters have to be
878 Lack of BER streaming support means one pass streaming processing is
879 only supported if data is detached: setting the streaming flag is
880 ignored for embedded content.
882 CMS support is disabled by default and must be explicitly enabled
883 with the enable-cms configuration option.
886 *) Update the GMP engine glue to do direct copies between BIGNUM and
887 mpz_t when openssl and GMP use the same limb size. Otherwise the
888 existing "conversion via a text string export" trick is still used.
889 [Paul Sheer <paulsheer@gmail.com>]
891 *) Zlib compression BIO. This is a filter BIO which compressed and
892 uncompresses any data passed through it.
895 *) Add AES_wrap_key() and AES_unwrap_key() functions to implement
896 RFC3394 compatible AES key wrapping.
899 *) Add utility functions to handle ASN1 structures. ASN1_STRING_set0():
900 sets string data without copying. X509_ALGOR_set0() and
901 X509_ALGOR_get0(): set and retrieve X509_ALGOR (AlgorithmIdentifier)
902 data. Attribute function X509at_get0_data_by_OBJ(): retrieves data
903 from an X509_ATTRIBUTE structure optionally checking it occurs only
904 once. ASN1_TYPE_set1(): set and ASN1_TYPE structure copying supplied
908 *) Fix BN flag handling in RSA_eay_mod_exp() and BN_MONT_CTX_set()
909 to get the expected BN_FLG_CONSTTIME behavior.
910 [Bodo Moeller (Google)]
914 - fixed wrong usage of ioctlsocket() when build for LIBC BSD sockets
915 - fixed do_tests.pl to run the test suite with CLIB builds too (CLIB_OPT)
916 - added some more tests to do_tests.pl
917 - fixed RunningProcess usage so that it works with newer LIBC NDKs too
918 - removed usage of BN_LLONG for CLIB builds to avoid runtime dependency
919 - added new Configure targets netware-clib-bsdsock, netware-clib-gcc,
920 netware-clib-bsdsock-gcc, netware-libc-bsdsock-gcc
921 - various changes to netware.pl to enable gcc-cross builds on Win32
923 - changed crypto/bio/b_sock.c to work with macro functions (CLIB BSD)
924 - various changes to fix missing prototype warnings
925 - fixed x86nasm.pl to create correct asm files for NASM COFF output
926 - added AES, WHIRLPOOL and CPUID assembler code to build files
927 - added missing AES assembler make rules to mk1mf.pl
928 - fixed order of includes in apps/ocsp.c so that e_os.h settings apply
929 [Guenter Knauf <eflash@gmx.net>]
931 *) Implement certificate status request TLS extension defined in RFC3546.
932 A client can set the appropriate parameters and receive the encoded
933 OCSP response via a callback. A server can query the supplied parameters
934 and set the encoded OCSP response in the callback. Add simplified examples
935 to s_client and s_server.
938 Changes between 0.9.8f and 0.9.8g [19 Oct 2007]
941 + Binary incompatibility of ssl_ctx_st structure
942 + DTLS interoperation with non-compliant servers
943 + Don't call get_session_cb() without proposed session
944 + Fix ia64 assembler code
945 [Andy Polyakov, Steve Henson]
947 Changes between 0.9.8e and 0.9.8f [11 Oct 2007]
949 *) DTLS Handshake overhaul. There were longstanding issues with
950 OpenSSL DTLS implementation, which were making it impossible for
951 RFC 4347 compliant client to communicate with OpenSSL server.
952 Unfortunately just fixing these incompatibilities would "cut off"
953 pre-0.9.8f clients. To allow for hassle free upgrade post-0.9.8e
954 server keeps tolerating non RFC compliant syntax. The opposite is
955 not true, 0.9.8f client can not communicate with earlier server.
956 This update even addresses CVE-2007-4995.
959 *) Changes to avoid need for function casts in OpenSSL: some compilers
960 (gcc 4.2 and later) reject their use.
961 [Kurt Roeckx <kurt@roeckx.be>, Peter Hartley <pdh@utter.chaos.org.uk>,
964 *) Add RFC4507 support to OpenSSL. This includes the corrections in
965 RFC4507bis. The encrypted ticket format is an encrypted encoded
966 SSL_SESSION structure, that way new session features are automatically
969 If a client application caches session in an SSL_SESSION structure
970 support is transparent because tickets are now stored in the encoded
973 The SSL_CTX structure automatically generates keys for ticket
974 protection in servers so again support should be possible
975 with no application modification.
977 If a client or server wishes to disable RFC4507 support then the option
978 SSL_OP_NO_TICKET can be set.
980 Add a TLS extension debugging callback to allow the contents of any client
981 or server extensions to be examined.
983 This work was sponsored by Google.
986 *) Add initial support for TLS extensions, specifically for the server_name
987 extension so far. The SSL_SESSION, SSL_CTX, and SSL data structures now
988 have new members for a host name. The SSL data structure has an
989 additional member SSL_CTX *initial_ctx so that new sessions can be
990 stored in that context to allow for session resumption, even after the
991 SSL has been switched to a new SSL_CTX in reaction to a client's
992 server_name extension.
994 New functions (subject to change):
997 SSL_get_servername_type()
1000 New CTRL codes and macros (subject to change):
1002 SSL_CTRL_SET_TLSEXT_SERVERNAME_CB
1003 - SSL_CTX_set_tlsext_servername_callback()
1004 SSL_CTRL_SET_TLSEXT_SERVERNAME_ARG
1005 - SSL_CTX_set_tlsext_servername_arg()
1006 SSL_CTRL_SET_TLSEXT_HOSTNAME - SSL_set_tlsext_host_name()
1008 openssl s_client has a new '-servername ...' option.
1010 openssl s_server has new options '-servername_host ...', '-cert2 ...',
1011 '-key2 ...', '-servername_fatal' (subject to change). This allows
1012 testing the HostName extension for a specific single host name ('-cert'
1013 and '-key' remain fallbacks for handshakes without HostName
1014 negotiation). If the unrecogninzed_name alert has to be sent, this by
1015 default is a warning; it becomes fatal with the '-servername_fatal'
1018 [Peter Sylvester, Remy Allais, Christophe Renou, Steve Henson]
1020 *) Add AES and SSE2 assembly language support to VC++ build.
1023 *) Mitigate attack on final subtraction in Montgomery reduction.
1026 *) Fix crypto/ec/ec_mult.c to work properly with scalars of value 0
1027 (which previously caused an internal error).
1030 *) Squeeze another 10% out of IGE mode when in != out.
1033 *) AES IGE mode speedup.
1034 [Dean Gaudet (Google)]
1036 *) Add the Korean symmetric 128-bit cipher SEED (see
1037 http://www.kisa.or.kr/kisa/seed/jsp/seed_eng.jsp) and
1038 add SEED ciphersuites from RFC 4162:
1040 TLS_RSA_WITH_SEED_CBC_SHA = "SEED-SHA"
1041 TLS_DHE_DSS_WITH_SEED_CBC_SHA = "DHE-DSS-SEED-SHA"
1042 TLS_DHE_RSA_WITH_SEED_CBC_SHA = "DHE-RSA-SEED-SHA"
1043 TLS_DH_anon_WITH_SEED_CBC_SHA = "ADH-SEED-SHA"
1045 To minimize changes between patchlevels in the OpenSSL 0.9.8
1046 series, SEED remains excluded from compilation unless OpenSSL
1047 is configured with 'enable-seed'.
1048 [KISA, Bodo Moeller]
1050 *) Mitigate branch prediction attacks, which can be practical if a
1051 single processor is shared, allowing a spy process to extract
1052 information. For detailed background information, see
1053 http://eprint.iacr.org/2007/039 (O. Aciicmez, S. Gueron,
1054 J.-P. Seifert, "New Branch Prediction Vulnerabilities in OpenSSL
1055 and Necessary Software Countermeasures"). The core of the change
1056 are new versions BN_div_no_branch() and
1057 BN_mod_inverse_no_branch() of BN_div() and BN_mod_inverse(),
1058 respectively, which are slower, but avoid the security-relevant
1059 conditional branches. These are automatically called by BN_div()
1060 and BN_mod_inverse() if the flag BN_FLG_CONSTTIME is set for one
1061 of the input BIGNUMs. Also, BN_is_bit_set() has been changed to
1062 remove a conditional branch.
1064 BN_FLG_CONSTTIME is the new name for the previous
1065 BN_FLG_EXP_CONSTTIME flag, since it now affects more than just
1066 modular exponentiation. (Since OpenSSL 0.9.7h, setting this flag
1067 in the exponent causes BN_mod_exp_mont() to use the alternative
1068 implementation in BN_mod_exp_mont_consttime().) The old name
1069 remains as a deprecated alias.
1071 Similary, RSA_FLAG_NO_EXP_CONSTTIME is replaced by a more general
1072 RSA_FLAG_NO_CONSTTIME flag since the RSA implementation now uses
1073 constant-time implementations for more than just exponentiation.
1074 Here too the old name is kept as a deprecated alias.
1076 BN_BLINDING_new() will now use BN_dup() for the modulus so that
1077 the BN_BLINDING structure gets an independent copy of the
1078 modulus. This means that the previous "BIGNUM *m" argument to
1079 BN_BLINDING_new() and to BN_BLINDING_create_param() now
1080 essentially becomes "const BIGNUM *m", although we can't actually
1081 change this in the header file before 0.9.9. It allows
1082 RSA_setup_blinding() to use BN_with_flags() on the modulus to
1083 enable BN_FLG_CONSTTIME.
1085 [Matthew D Wood (Intel Corp)]
1087 *) In the SSL/TLS server implementation, be strict about session ID
1088 context matching (which matters if an application uses a single
1089 external cache for different purposes). Previously,
1090 out-of-context reuse was forbidden only if SSL_VERIFY_PEER was
1091 set. This did ensure strict client verification, but meant that,
1092 with applications using a single external cache for quite
1093 different requirements, clients could circumvent ciphersuite
1094 restrictions for a given session ID context by starting a session
1095 in a different context.
1098 *) Include "!eNULL" in SSL_DEFAULT_CIPHER_LIST to make sure that
1099 a ciphersuite string such as "DEFAULT:RSA" cannot enable
1100 authentication-only ciphersuites.
1103 *) Update the SSL_get_shared_ciphers() fix CVE-2006-3738 which was
1104 not complete and could lead to a possible single byte overflow
1105 (CVE-2007-5135) [Ben Laurie]
1107 Changes between 0.9.8d and 0.9.8e [23 Feb 2007]
1109 *) Since AES128 and AES256 (and similarly Camellia128 and
1110 Camellia256) share a single mask bit in the logic of
1111 ssl/ssl_ciph.c, the code for masking out disabled ciphers needs a
1112 kludge to work properly if AES128 is available and AES256 isn't
1113 (or if Camellia128 is available and Camellia256 isn't).
1116 *) Fix the BIT STRING encoding generated by crypto/ec/ec_asn1.c
1117 (within i2d_ECPrivateKey, i2d_ECPKParameters, i2d_ECParameters):
1118 When a point or a seed is encoded in a BIT STRING, we need to
1119 prevent the removal of trailing zero bits to get the proper DER
1120 encoding. (By default, crypto/asn1/a_bitstr.c assumes the case
1121 of a NamedBitList, for which trailing 0 bits need to be removed.)
1124 *) Have SSL/TLS server implementation tolerate "mismatched" record
1125 protocol version while receiving ClientHello even if the
1126 ClientHello is fragmented. (The server can't insist on the
1127 particular protocol version it has chosen before the ServerHello
1128 message has informed the client about his choice.)
1131 *) Add RFC 3779 support.
1132 [Rob Austein for ARIN, Ben Laurie]
1134 *) Load error codes if they are not already present instead of using a
1135 static variable. This allows them to be cleanly unloaded and reloaded.
1136 Improve header file function name parsing.
1139 *) extend SMTP and IMAP protocol emulation in s_client to use EHLO
1140 or CAPABILITY handshake as required by RFCs.
1143 Changes between 0.9.8c and 0.9.8d [28 Sep 2006]
1145 *) Introduce limits to prevent malicious keys being able to
1146 cause a denial of service. (CVE-2006-2940)
1147 [Steve Henson, Bodo Moeller]
1149 *) Fix ASN.1 parsing of certain invalid structures that can result
1150 in a denial of service. (CVE-2006-2937) [Steve Henson]
1152 *) Fix buffer overflow in SSL_get_shared_ciphers() function.
1153 (CVE-2006-3738) [Tavis Ormandy and Will Drewry, Google Security Team]
1155 *) Fix SSL client code which could crash if connecting to a
1156 malicious SSLv2 server. (CVE-2006-4343)
1157 [Tavis Ormandy and Will Drewry, Google Security Team]
1159 *) Since 0.9.8b, ciphersuite strings naming explicit ciphersuites
1160 match only those. Before that, "AES256-SHA" would be interpreted
1161 as a pattern and match "AES128-SHA" too (since AES128-SHA got
1162 the same strength classification in 0.9.7h) as we currently only
1163 have a single AES bit in the ciphersuite description bitmap.
1164 That change, however, also applied to ciphersuite strings such as
1165 "RC4-MD5" that intentionally matched multiple ciphersuites --
1166 namely, SSL 2.0 ciphersuites in addition to the more common ones
1167 from SSL 3.0/TLS 1.0.
1169 So we change the selection algorithm again: Naming an explicit
1170 ciphersuite selects this one ciphersuite, and any other similar
1171 ciphersuite (same bitmap) from *other* protocol versions.
1172 Thus, "RC4-MD5" again will properly select both the SSL 2.0
1173 ciphersuite and the SSL 3.0/TLS 1.0 ciphersuite.
1175 Since SSL 2.0 does not have any ciphersuites for which the
1176 128/256 bit distinction would be relevant, this works for now.
1177 The proper fix will be to use different bits for AES128 and
1178 AES256, which would have avoided the problems from the beginning;
1179 however, bits are scarce, so we can only do this in a new release
1180 (not just a patchlevel) when we can change the SSL_CIPHER
1181 definition to split the single 'unsigned long mask' bitmap into
1182 multiple values to extend the available space.
1186 Changes between 0.9.8b and 0.9.8c [05 Sep 2006]
1188 *) Avoid PKCS #1 v1.5 signature attack discovered by Daniel Bleichenbacher
1189 (CVE-2006-4339) [Ben Laurie and Google Security Team]
1191 *) Add AES IGE and biIGE modes.
1194 *) Change the Unix randomness entropy gathering to use poll() when
1195 possible instead of select(), since the latter has some
1196 undesirable limitations.
1197 [Darryl Miles via Richard Levitte and Bodo Moeller]
1199 *) Disable "ECCdraft" ciphersuites more thoroughly. Now special
1200 treatment in ssl/ssl_ciph.s makes sure that these ciphersuites
1201 cannot be implicitly activated as part of, e.g., the "AES" alias.
1202 However, please upgrade to OpenSSL 0.9.9[-dev] for
1203 non-experimental use of the ECC ciphersuites to get TLS extension
1204 support, which is required for curve and point format negotiation
1205 to avoid potential handshake problems.
1208 *) Disable rogue ciphersuites:
1210 - SSLv2 0x08 0x00 0x80 ("RC4-64-MD5")
1211 - SSLv3/TLSv1 0x00 0x61 ("EXP1024-RC2-CBC-MD5")
1212 - SSLv3/TLSv1 0x00 0x60 ("EXP1024-RC4-MD5")
1214 The latter two were purportedly from
1215 draft-ietf-tls-56-bit-ciphersuites-0[01].txt, but do not really
1218 Also deactivate the remaining ciphersuites from
1219 draft-ietf-tls-56-bit-ciphersuites-01.txt. These are just as
1220 unofficial, and the ID has long expired.
1223 *) Fix RSA blinding Heisenbug (problems sometimes occured on
1224 dual-core machines) and other potential thread-safety issues.
1227 *) Add the symmetric cipher Camellia (128-bit, 192-bit, 256-bit key
1228 versions), which is now available for royalty-free use
1229 (see http://info.isl.ntt.co.jp/crypt/eng/info/chiteki.html).
1230 Also, add Camellia TLS ciphersuites from RFC 4132.
1232 To minimize changes between patchlevels in the OpenSSL 0.9.8
1233 series, Camellia remains excluded from compilation unless OpenSSL
1234 is configured with 'enable-camellia'.
1237 *) Disable the padding bug check when compression is in use. The padding
1238 bug check assumes the first packet is of even length, this is not
1239 necessarily true if compresssion is enabled and can result in false
1240 positives causing handshake failure. The actual bug test is ancient
1241 code so it is hoped that implementations will either have fixed it by
1242 now or any which still have the bug do not support compression.
1245 Changes between 0.9.8a and 0.9.8b [04 May 2006]
1247 *) When applying a cipher rule check to see if string match is an explicit
1248 cipher suite and only match that one cipher suite if it is.
1251 *) Link in manifests for VC++ if needed.
1252 [Austin Ziegler <halostatue@gmail.com>]
1254 *) Update support for ECC-based TLS ciphersuites according to
1255 draft-ietf-tls-ecc-12.txt with proposed changes (but without
1256 TLS extensions, which are supported starting with the 0.9.9
1257 branch, not in the OpenSSL 0.9.8 branch).
1260 *) New functions EVP_CIPHER_CTX_new() and EVP_CIPHER_CTX_free() to support
1261 opaque EVP_CIPHER_CTX handling.
1264 *) Fixes and enhancements to zlib compression code. We now only use
1265 "zlib1.dll" and use the default __cdecl calling convention on Win32
1266 to conform with the standards mentioned here:
1267 http://www.zlib.net/DLL_FAQ.txt
1268 Static zlib linking now works on Windows and the new --with-zlib-include
1269 --with-zlib-lib options to Configure can be used to supply the location
1270 of the headers and library. Gracefully handle case where zlib library
1274 *) Several fixes and enhancements to the OID generation code. The old code
1275 sometimes allowed invalid OIDs (1.X for X >= 40 for example), couldn't
1276 handle numbers larger than ULONG_MAX, truncated printing and had a
1277 non standard OBJ_obj2txt() behaviour.
1280 *) Add support for building of engines under engine/ as shared libraries
1281 under VC++ build system.
1284 *) Corrected the numerous bugs in the Win32 path splitter in DSO.
1285 Hopefully, we will not see any false combination of paths any more.
1288 Changes between 0.9.8 and 0.9.8a [11 Oct 2005]
1290 *) Remove the functionality of SSL_OP_MSIE_SSLV2_RSA_PADDING
1291 (part of SSL_OP_ALL). This option used to disable the
1292 countermeasure against man-in-the-middle protocol-version
1293 rollback in the SSL 2.0 server implementation, which is a bad
1294 idea. (CVE-2005-2969)
1296 [Bodo Moeller; problem pointed out by Yutaka Oiwa (Research Center
1297 for Information Security, National Institute of Advanced Industrial
1298 Science and Technology [AIST], Japan)]
1300 *) Add two function to clear and return the verify parameter flags.
1303 *) Keep cipherlists sorted in the source instead of sorting them at
1304 runtime, thus removing the need for a lock.
1307 *) Avoid some small subgroup attacks in Diffie-Hellman.
1308 [Nick Mathewson and Ben Laurie]
1310 *) Add functions for well-known primes.
1313 *) Extended Windows CE support.
1314 [Satoshi Nakamura and Andy Polyakov]
1316 *) Initialize SSL_METHOD structures at compile time instead of during
1317 runtime, thus removing the need for a lock.
1320 *) Make PKCS7_decrypt() work even if no certificate is supplied by
1321 attempting to decrypt each encrypted key in turn. Add support to
1325 Changes between 0.9.7h and 0.9.8 [05 Jul 2005]
1327 [NB: OpenSSL 0.9.7i and later 0.9.7 patch levels were released after
1330 *) Add libcrypto.pc and libssl.pc for those who feel they need them.
1333 *) Change CA.sh and CA.pl so they don't bundle the CSR and the private
1334 key into the same file any more.
1337 *) Add initial support for Win64, both IA64 and AMD64/x64 flavors.
1340 *) Add -utf8 command line and config file option to 'ca'.
1341 [Stefan <stf@udoma.org]
1343 *) Removed the macro des_crypt(), as it seems to conflict with some
1344 libraries. Use DES_crypt().
1347 *) Correct naming of the 'chil' and '4758cca' ENGINEs. This
1348 involves renaming the source and generated shared-libs for
1349 both. The engines will accept the corrected or legacy ids
1350 ('ncipher' and '4758_cca' respectively) when binding. NB,
1351 this only applies when building 'shared'.
1352 [Corinna Vinschen <vinschen@redhat.com> and Geoff Thorpe]
1354 *) Add attribute functions to EVP_PKEY structure. Modify
1355 PKCS12_create() to recognize a CSP name attribute and
1356 use it. Make -CSP option work again in pkcs12 utility.
1359 *) Add new functionality to the bn blinding code:
1360 - automatic re-creation of the BN_BLINDING parameters after
1361 a fixed number of uses (currently 32)
1362 - add new function for parameter creation
1363 - introduce flags to control the update behaviour of the
1364 BN_BLINDING parameters
1365 - hide BN_BLINDING structure
1366 Add a second BN_BLINDING slot to the RSA structure to improve
1367 performance when a single RSA object is shared among several
1371 *) Add support for DTLS.
1372 [Nagendra Modadugu <nagendra@cs.stanford.edu> and Ben Laurie]
1374 *) Add support for DER encoded private keys (SSL_FILETYPE_ASN1)
1375 to SSL_CTX_use_PrivateKey_file() and SSL_use_PrivateKey_file()
1378 *) Remove buggy and incompletet DH cert support from
1379 ssl/ssl_rsa.c and ssl/s3_both.c
1382 *) Use SHA-1 instead of MD5 as the default digest algorithm for
1383 the apps/openssl applications.
1386 *) Compile clean with "-Wall -Wmissing-prototypes
1387 -Wstrict-prototypes -Wmissing-declarations -Werror". Currently
1388 DEBUG_SAFESTACK must also be set.
1391 *) Change ./Configure so that certain algorithms can be disabled by default.
1392 The new counterpiece to "no-xxx" is "enable-xxx".
1394 The patented RC5 and MDC2 algorithms will now be disabled unless
1395 "enable-rc5" and "enable-mdc2", respectively, are specified.
1397 (IDEA remains enabled despite being patented. This is because IDEA
1398 is frequently required for interoperability, and there is no license
1399 fee for non-commercial use. As before, "no-idea" can be used to
1400 avoid this algorithm.)
1404 *) Add processing of proxy certificates (see RFC 3820). This work was
1405 sponsored by KTH (The Royal Institute of Technology in Stockholm) and
1406 EGEE (Enabling Grids for E-science in Europe).
1409 *) RC4 performance overhaul on modern architectures/implementations, such
1410 as Intel P4, IA-64 and AMD64.
1413 *) New utility extract-section.pl. This can be used specify an alternative
1414 section number in a pod file instead of having to treat each file as
1415 a separate case in Makefile. This can be done by adding two lines to the
1418 =for comment openssl_section:XXX
1420 The blank line is mandatory.
1424 *) New arguments -certform, -keyform and -pass for s_client and s_server
1425 to allow alternative format key and certificate files and passphrase
1429 *) New structure X509_VERIFY_PARAM which combines current verify parameters,
1430 update associated structures and add various utility functions.
1432 Add new policy related verify parameters, include policy checking in
1433 standard verify code. Enhance 'smime' application with extra parameters
1434 to support policy checking and print out.
1437 *) Add a new engine to support VIA PadLock ACE extensions in the VIA C3
1438 Nehemiah processors. These extensions support AES encryption in hardware
1439 as well as RNG (though RNG support is currently disabled).
1440 [Michal Ludvig <michal@logix.cz>, with help from Andy Polyakov]
1442 *) Deprecate BN_[get|set]_params() functions (they were ignored internally).
1445 *) New FIPS 180-2 algorithms, SHA-224/-256/-384/-512 are implemented.
1446 [Andy Polyakov and a number of other people]
1448 *) Improved PowerPC platform support. Most notably BIGNUM assembler
1449 implementation contributed by IBM.
1450 [Suresh Chari, Peter Waltenberg, Andy Polyakov]
1452 *) The new 'RSA_generate_key_ex' function now takes a BIGNUM for the public
1453 exponent rather than 'unsigned long'. There is a corresponding change to
1454 the new 'rsa_keygen' element of the RSA_METHOD structure.
1455 [Jelte Jansen, Geoff Thorpe]
1457 *) Functionality for creating the initial serial number file is now
1458 moved from CA.pl to the 'ca' utility with a new option -create_serial.
1460 (Before OpenSSL 0.9.7e, CA.pl used to initialize the serial
1461 number file to 1, which is bound to cause problems. To avoid
1462 the problems while respecting compatibility between different 0.9.7
1463 patchlevels, 0.9.7e employed 'openssl x509 -next_serial' in
1464 CA.pl for serial number initialization. With the new release 0.9.8,
1465 we can fix the problem directly in the 'ca' utility.)
1468 *) Reduced header interdepencies by declaring more opaque objects in
1469 ossl_typ.h. As a consequence, including some headers (eg. engine.h) will
1470 give fewer recursive includes, which could break lazy source code - so
1471 this change is covered by the OPENSSL_NO_DEPRECATED symbol. As always,
1472 developers should define this symbol when building and using openssl to
1473 ensure they track the recommended behaviour, interfaces, [etc], but
1474 backwards-compatible behaviour prevails when this isn't defined.
1477 *) New function X509_POLICY_NODE_print() which prints out policy nodes.
1480 *) Add new EVP function EVP_CIPHER_CTX_rand_key and associated functionality.
1481 This will generate a random key of the appropriate length based on the
1482 cipher context. The EVP_CIPHER can provide its own random key generation
1483 routine to support keys of a specific form. This is used in the des and
1484 3des routines to generate a key of the correct parity. Update S/MIME
1485 code to use new functions and hence generate correct parity DES keys.
1486 Add EVP_CHECK_DES_KEY #define to return an error if the key is not
1487 valid (weak or incorrect parity).
1490 *) Add a local set of CRLs that can be used by X509_verify_cert() as well
1491 as looking them up. This is useful when the verified structure may contain
1492 CRLs, for example PKCS#7 signedData. Modify PKCS7_verify() to use any CRLs
1493 present unless the new PKCS7_NO_CRL flag is asserted.
1496 *) Extend ASN1 oid configuration module. It now additionally accepts the
1499 shortName = some long name, 1.2.3.4
1502 *) Reimplemented the BN_CTX implementation. There is now no more static
1503 limitation on the number of variables it can handle nor the depth of the
1504 "stack" handling for BN_CTX_start()/BN_CTX_end() pairs. The stack
1505 information can now expand as required, and rather than having a single
1506 static array of bignums, BN_CTX now uses a linked-list of such arrays
1507 allowing it to expand on demand whilst maintaining the usefulness of
1508 BN_CTX's "bundling".
1511 *) Add a missing BN_CTX parameter to the 'rsa_mod_exp' callback in RSA_METHOD
1512 to allow all RSA operations to function using a single BN_CTX.
1515 *) Preliminary support for certificate policy evaluation and checking. This
1516 is initially intended to pass the tests outlined in "Conformance Testing
1517 of Relying Party Client Certificate Path Processing Logic" v1.07.
1520 *) bn_dup_expand() has been deprecated, it was introduced in 0.9.7 and
1521 remained unused and not that useful. A variety of other little bignum
1522 tweaks and fixes have also been made continuing on from the audit (see
1526 *) Constify all or almost all d2i, c2i, s2i and r2i functions, along with
1527 associated ASN1, EVP and SSL functions and old ASN1 macros.
1530 *) BN_zero() only needs to set 'top' and 'neg' to zero for correct results,
1531 and this should never fail. So the return value from the use of
1532 BN_set_word() (which can fail due to needless expansion) is now deprecated;
1533 if OPENSSL_NO_DEPRECATED is defined, BN_zero() is a void macro.
1536 *) BN_CTX_get() should return zero-valued bignums, providing the same
1537 initialised value as BN_new().
1538 [Geoff Thorpe, suggested by Ulf Möller]
1540 *) Support for inhibitAnyPolicy certificate extension.
1543 *) An audit of the BIGNUM code is underway, for which debugging code is
1544 enabled when BN_DEBUG is defined. This makes stricter enforcements on what
1545 is considered valid when processing BIGNUMs, and causes execution to
1546 assert() when a problem is discovered. If BN_DEBUG_RAND is defined,
1547 further steps are taken to deliberately pollute unused data in BIGNUM
1548 structures to try and expose faulty code further on. For now, openssl will
1549 (in its default mode of operation) continue to tolerate the inconsistent
1550 forms that it has tolerated in the past, but authors and packagers should
1551 consider trying openssl and their own applications when compiled with
1552 these debugging symbols defined. It will help highlight potential bugs in
1553 their own code, and will improve the test coverage for OpenSSL itself. At
1554 some point, these tighter rules will become openssl's default to improve
1555 maintainability, though the assert()s and other overheads will remain only
1556 in debugging configurations. See bn.h for more details.
1557 [Geoff Thorpe, Nils Larsch, Ulf Möller]
1559 *) BN_CTX_init() has been deprecated, as BN_CTX is an opaque structure
1560 that can only be obtained through BN_CTX_new() (which implicitly
1561 initialises it). The presence of this function only made it possible
1562 to overwrite an existing structure (and cause memory leaks).
1565 *) Because of the callback-based approach for implementing LHASH as a
1566 template type, lh_insert() adds opaque objects to hash-tables and
1567 lh_doall() or lh_doall_arg() are typically used with a destructor callback
1568 to clean up those corresponding objects before destroying the hash table
1569 (and losing the object pointers). So some over-zealous constifications in
1570 LHASH have been relaxed so that lh_insert() does not take (nor store) the
1571 objects as "const" and the lh_doall[_arg] callback wrappers are not
1572 prototyped to have "const" restrictions on the object pointers they are
1573 given (and so aren't required to cast them away any more).
1576 *) The tmdiff.h API was so ugly and minimal that our own timing utility
1577 (speed) prefers to use its own implementation. The two implementations
1578 haven't been consolidated as yet (volunteers?) but the tmdiff API has had
1579 its object type properly exposed (MS_TM) instead of casting to/from "char
1580 *". This may still change yet if someone realises MS_TM and "ms_time_***"
1581 aren't necessarily the greatest nomenclatures - but this is what was used
1582 internally to the implementation so I've used that for now.
1585 *) Ensure that deprecated functions do not get compiled when
1586 OPENSSL_NO_DEPRECATED is defined. Some "openssl" subcommands and a few of
1587 the self-tests were still using deprecated key-generation functions so
1588 these have been updated also.
1591 *) Reorganise PKCS#7 code to separate the digest location functionality
1592 into PKCS7_find_digest(), digest addtion into PKCS7_bio_add_digest().
1593 New function PKCS7_set_digest() to set the digest type for PKCS#7
1594 digestedData type. Add additional code to correctly generate the
1595 digestedData type and add support for this type in PKCS7 initialization
1599 *) New function PKCS7_set0_type_other() this initializes a PKCS7
1600 structure of type "other".
1603 *) Fix prime generation loop in crypto/bn/bn_prime.pl by making
1604 sure the loop does correctly stop and breaking ("division by zero")
1605 modulus operations are not performed. The (pre-generated) prime
1606 table crypto/bn/bn_prime.h was already correct, but it could not be
1607 re-generated on some platforms because of the "division by zero"
1608 situation in the script.
1609 [Ralf S. Engelschall]
1611 *) Update support for ECC-based TLS ciphersuites according to
1612 draft-ietf-tls-ecc-03.txt: the KDF1 key derivation function with
1613 SHA-1 now is only used for "small" curves (where the
1614 representation of a field element takes up to 24 bytes); for
1615 larger curves, the field element resulting from ECDH is directly
1616 used as premaster secret.
1617 [Douglas Stebila (Sun Microsystems Laboratories)]
1619 *) Add code for kP+lQ timings to crypto/ec/ectest.c, and add SEC2
1620 curve secp160r1 to the tests.
1621 [Douglas Stebila (Sun Microsystems Laboratories)]
1623 *) Add the possibility to load symbols globally with DSO.
1624 [Götz Babin-Ebell <babin-ebell@trustcenter.de> via Richard Levitte]
1626 *) Add the functions ERR_set_mark() and ERR_pop_to_mark() for better
1627 control of the error stack.
1630 *) Add support for STORE in ENGINE.
1633 *) Add the STORE type. The intention is to provide a common interface
1634 to certificate and key stores, be they simple file-based stores, or
1635 HSM-type store, or LDAP stores, or...
1636 NOTE: The code is currently UNTESTED and isn't really used anywhere.
1639 *) Add a generic structure called OPENSSL_ITEM. This can be used to
1640 pass a list of arguments to any function as well as provide a way
1641 for a function to pass data back to the caller.
1644 *) Add the functions BUF_strndup() and BUF_memdup(). BUF_strndup()
1645 works like BUF_strdup() but can be used to duplicate a portion of
1646 a string. The copy gets NUL-terminated. BUF_memdup() duplicates
1650 *) Add the function sk_find_ex() which works like sk_find(), but will
1651 return an index to an element even if an exact match couldn't be
1652 found. The index is guaranteed to point at the element where the
1653 searched-for key would be inserted to preserve sorting order.
1656 *) Add the function OBJ_bsearch_ex() which works like OBJ_bsearch() but
1657 takes an extra flags argument for optional functionality. Currently,
1658 the following flags are defined:
1660 OBJ_BSEARCH_VALUE_ON_NOMATCH
1661 This one gets OBJ_bsearch_ex() to return a pointer to the first
1662 element where the comparing function returns a negative or zero
1665 OBJ_BSEARCH_FIRST_VALUE_ON_MATCH
1666 This one gets OBJ_bsearch_ex() to return a pointer to the first
1667 element where the comparing function returns zero. This is useful
1668 if there are more than one element where the comparing function
1672 *) Make it possible to create self-signed certificates with 'openssl ca'
1673 in such a way that the self-signed certificate becomes part of the
1674 CA database and uses the same mechanisms for serial number generation
1675 as all other certificate signing. The new flag '-selfsign' enables
1676 this functionality. Adapt CA.sh and CA.pl.in.
1679 *) Add functionality to check the public key of a certificate request
1680 against a given private. This is useful to check that a certificate
1681 request can be signed by that key (self-signing).
1684 *) Make it possible to have multiple active certificates with the same
1685 subject in the CA index file. This is done only if the keyword
1686 'unique_subject' is set to 'no' in the main CA section (default
1687 if 'CA_default') of the configuration file. The value is saved
1688 with the database itself in a separate index attribute file,
1689 named like the index file with '.attr' appended to the name.
1692 *) Generate muti valued AVAs using '+' notation in config files for
1696 *) Support for nameConstraints certificate extension.
1699 *) Support for policyConstraints certificate extension.
1702 *) Support for policyMappings certificate extension.
1705 *) Make sure the default DSA_METHOD implementation only uses its
1706 dsa_mod_exp() and/or bn_mod_exp() handlers if they are non-NULL,
1707 and change its own handlers to be NULL so as to remove unnecessary
1708 indirection. This lets alternative implementations fallback to the
1709 default implementation more easily.
1712 *) Support for directoryName in GeneralName related extensions
1716 *) Make it possible to link applications using Makefile.shared.
1717 Make that possible even when linking against static libraries!
1720 *) Support for single pass processing for S/MIME signing. This now
1721 means that S/MIME signing can be done from a pipe, in addition
1722 cleartext signing (multipart/signed type) is effectively streaming
1723 and the signed data does not need to be all held in memory.
1725 This is done with a new flag PKCS7_STREAM. When this flag is set
1726 PKCS7_sign() only initializes the PKCS7 structure and the actual signing
1727 is done after the data is output (and digests calculated) in
1728 SMIME_write_PKCS7().
1731 *) Add full support for -rpath/-R, both in shared libraries and
1732 applications, at least on the platforms where it's known how
1736 *) In crypto/ec/ec_mult.c, implement fast point multiplication with
1737 precomputation, based on wNAF splitting: EC_GROUP_precompute_mult()
1738 will now compute a table of multiples of the generator that
1739 makes subsequent invocations of EC_POINTs_mul() or EC_POINT_mul()
1740 faster (notably in the case of a single point multiplication,
1741 scalar * generator).
1742 [Nils Larsch, Bodo Moeller]
1744 *) IPv6 support for certificate extensions. The various extensions
1745 which use the IP:a.b.c.d can now take IPv6 addresses using the
1746 formats of RFC1884 2.2 . IPv6 addresses are now also displayed
1750 *) Added an ENGINE that implements RSA by performing private key
1751 exponentiations with the GMP library. The conversions to and from
1752 GMP's mpz_t format aren't optimised nor are any montgomery forms
1753 cached, and on x86 it appears OpenSSL's own performance has caught up.
1754 However there are likely to be other architectures where GMP could
1755 provide a boost. This ENGINE is not built in by default, but it can be
1756 specified at Configure time and should be accompanied by the necessary
1757 linker additions, eg;
1758 ./config -DOPENSSL_USE_GMP -lgmp
1761 *) "openssl engine" will not display ENGINE/DSO load failure errors when
1762 testing availability of engines with "-t" - the old behaviour is
1763 produced by increasing the feature's verbosity with "-tt".
1766 *) ECDSA routines: under certain error conditions uninitialized BN objects
1767 could be freed. Solution: make sure initialization is performed early
1768 enough. (Reported and fix supplied by Nils Larsch <nla@trustcenter.de>
1772 *) Key-generation can now be implemented in RSA_METHOD, DSA_METHOD
1773 and DH_METHOD (eg. by ENGINE implementations) to override the normal
1774 software implementations. For DSA and DH, parameter generation can
1775 also be overriden by providing the appropriate method callbacks.
1778 *) Change the "progress" mechanism used in key-generation and
1779 primality testing to functions that take a new BN_GENCB pointer in
1780 place of callback/argument pairs. The new API functions have "_ex"
1781 postfixes and the older functions are reimplemented as wrappers for
1782 the new ones. The OPENSSL_NO_DEPRECATED symbol can be used to hide
1783 declarations of the old functions to help (graceful) attempts to
1784 migrate to the new functions. Also, the new key-generation API
1785 functions operate on a caller-supplied key-structure and return
1786 success/failure rather than returning a key or NULL - this is to
1787 help make "keygen" another member function of RSA_METHOD etc.
1789 Example for using the new callback interface:
1791 int (*my_callback)(int a, int b, BN_GENCB *cb) = ...;
1795 BN_GENCB_set(&my_cb, my_callback, my_arg);
1797 return BN_is_prime_ex(some_bignum, BN_prime_checks, NULL, &cb);
1798 /* For the meaning of a, b in calls to my_callback(), see the
1799 * documentation of the function that calls the callback.
1800 * cb will point to my_cb; my_arg can be retrieved as cb->arg.
1801 * my_callback should return 1 if it wants BN_is_prime_ex()
1802 * to continue, or 0 to stop.
1807 *) Change the ZLIB compression method to be stateful, and make it
1808 available to TLS with the number defined in
1809 draft-ietf-tls-compression-04.txt.
1812 *) Add the ASN.1 structures and functions for CertificatePair, which
1813 is defined as follows (according to X.509_4thEditionDraftV6.pdf):
1815 CertificatePair ::= SEQUENCE {
1816 forward [0] Certificate OPTIONAL,
1817 reverse [1] Certificate OPTIONAL,
1818 -- at least one of the pair shall be present -- }
1820 Also implement the PEM functions to read and write certificate
1821 pairs, and defined the PEM tag as "CERTIFICATE PAIR".
1823 This needed to be defined, mostly for the sake of the LDAP
1824 attribute crossCertificatePair, but may prove useful elsewhere as
1828 *) Make it possible to inhibit symlinking of shared libraries in
1829 Makefile.shared, for Cygwin's sake.
1832 *) Extend the BIGNUM API by creating a function
1833 void BN_set_negative(BIGNUM *a, int neg);
1834 and a macro that behave like
1835 int BN_is_negative(const BIGNUM *a);
1837 to avoid the need to access 'a->neg' directly in applications.
1840 *) Implement fast modular reduction for pseudo-Mersenne primes
1841 used in NIST curves (crypto/bn/bn_nist.c, crypto/ec/ecp_nist.c).
1842 EC_GROUP_new_curve_GFp() will now automatically use this
1844 [Nils Larsch <nla@trustcenter.de>]
1846 *) Add new lock type (CRYPTO_LOCK_BN).
1849 *) Change the ENGINE framework to automatically load engines
1850 dynamically from specific directories unless they could be
1851 found to already be built in or loaded. Move all the
1852 current engines except for the cryptodev one to a new
1854 The engines in engines/ are built as shared libraries if
1855 the "shared" options was given to ./Configure or ./config.
1856 Otherwise, they are inserted in libcrypto.a.
1857 /usr/local/ssl/engines is the default directory for dynamic
1858 engines, but that can be overriden at configure time through
1859 the usual use of --prefix and/or --openssldir, and at run
1860 time with the environment variable OPENSSL_ENGINES.
1861 [Geoff Thorpe and Richard Levitte]
1863 *) Add Makefile.shared, a helper makefile to build shared
1864 libraries. Addapt Makefile.org.
1867 *) Add version info to Win32 DLLs.
1868 [Peter 'Luna' Runestig" <peter@runestig.com>]
1870 *) Add new 'medium level' PKCS#12 API. Certificates and keys
1871 can be added using this API to created arbitrary PKCS#12
1872 files while avoiding the low level API.
1874 New options to PKCS12_create(), key or cert can be NULL and
1875 will then be omitted from the output file. The encryption
1876 algorithm NIDs can be set to -1 for no encryption, the mac
1877 iteration count can be set to 0 to omit the mac.
1879 Enhance pkcs12 utility by making the -nokeys and -nocerts
1880 options work when creating a PKCS#12 file. New option -nomac
1881 to omit the mac, NONE can be set for an encryption algorithm.
1882 New code is modified to use the enhanced PKCS12_create()
1883 instead of the low level API.
1886 *) Extend ASN1 encoder to support indefinite length constructed
1887 encoding. This can output sequences tags and octet strings in
1888 this form. Modify pk7_asn1.c to support indefinite length
1889 encoding. This is experimental and needs additional code to
1890 be useful, such as an ASN1 bio and some enhanced streaming
1893 Extend template encode functionality so that tagging is passed
1894 down to the template encoder.
1897 *) Let 'openssl req' fail if an argument to '-newkey' is not
1898 recognized instead of using RSA as a default.
1901 *) Add support for ECC-based ciphersuites from draft-ietf-tls-ecc-01.txt.
1902 As these are not official, they are not included in "ALL";
1903 the "ECCdraft" ciphersuite group alias can be used to select them.
1904 [Vipul Gupta and Sumit Gupta (Sun Microsystems Laboratories)]
1906 *) Add ECDH engine support.
1907 [Nils Gura and Douglas Stebila (Sun Microsystems Laboratories)]
1909 *) Add ECDH in new directory crypto/ecdh/.
1910 [Douglas Stebila (Sun Microsystems Laboratories)]
1912 *) Let BN_rand_range() abort with an error after 100 iterations
1913 without success (which indicates a broken PRNG).
1916 *) Change BN_mod_sqrt() so that it verifies that the input value
1917 is really the square of the return value. (Previously,
1918 BN_mod_sqrt would show GIGO behaviour.)
1921 *) Add named elliptic curves over binary fields from X9.62, SECG,
1922 and WAP/WTLS; add OIDs that were still missing.
1924 [Sheueling Chang Shantz and Douglas Stebila
1925 (Sun Microsystems Laboratories)]
1927 *) Extend the EC library for elliptic curves over binary fields
1928 (new files ec2_smpl.c, ec2_smpt.c, ec2_mult.c in crypto/ec/).
1931 EC_GF2m_simple_method
1935 EC_GROUP_new_curve_GF2m
1936 EC_GROUP_set_curve_GF2m
1937 EC_GROUP_get_curve_GF2m
1938 EC_POINT_set_affine_coordinates_GF2m
1939 EC_POINT_get_affine_coordinates_GF2m
1940 EC_POINT_set_compressed_coordinates_GF2m
1942 Point compression for binary fields is disabled by default for
1943 patent reasons (compile with OPENSSL_EC_BIN_PT_COMP defined to
1946 As binary polynomials are represented as BIGNUMs, various members
1947 of the EC_GROUP and EC_POINT data structures can be shared
1948 between the implementations for prime fields and binary fields;
1949 the above ..._GF2m functions (except for EX_GROUP_new_curve_GF2m)
1950 are essentially identical to their ..._GFp counterparts.
1951 (For simplicity, the '..._GFp' prefix has been dropped from
1952 various internal method names.)
1954 An internal 'field_div' method (similar to 'field_mul' and
1955 'field_sqr') has been added; this is used only for binary fields.
1957 [Sheueling Chang Shantz and Douglas Stebila
1958 (Sun Microsystems Laboratories)]
1960 *) Optionally dispatch EC_POINT_mul(), EC_POINT_precompute_mult()
1961 through methods ('mul', 'precompute_mult').
1963 The generic implementations (now internally called 'ec_wNAF_mul'
1964 and 'ec_wNAF_precomputed_mult') remain the default if these
1965 methods are undefined.
1967 [Sheueling Chang Shantz and Douglas Stebila
1968 (Sun Microsystems Laboratories)]
1970 *) New function EC_GROUP_get_degree, which is defined through
1971 EC_METHOD. For curves over prime fields, this returns the bit
1972 length of the modulus.
1974 [Sheueling Chang Shantz and Douglas Stebila
1975 (Sun Microsystems Laboratories)]
1977 *) New functions EC_GROUP_dup, EC_POINT_dup.
1978 (These simply call ..._new and ..._copy).
1980 [Sheueling Chang Shantz and Douglas Stebila
1981 (Sun Microsystems Laboratories)]
1983 *) Add binary polynomial arithmetic software in crypto/bn/bn_gf2m.c.
1984 Polynomials are represented as BIGNUMs (where the sign bit is not
1985 used) in the following functions [macros]:
1988 BN_GF2m_sub [= BN_GF2m_add]
1989 BN_GF2m_mod [wrapper for BN_GF2m_mod_arr]
1990 BN_GF2m_mod_mul [wrapper for BN_GF2m_mod_mul_arr]
1991 BN_GF2m_mod_sqr [wrapper for BN_GF2m_mod_sqr_arr]
1993 BN_GF2m_mod_exp [wrapper for BN_GF2m_mod_exp_arr]
1994 BN_GF2m_mod_sqrt [wrapper for BN_GF2m_mod_sqrt_arr]
1995 BN_GF2m_mod_solve_quad [wrapper for BN_GF2m_mod_solve_quad_arr]
1996 BN_GF2m_cmp [= BN_ucmp]
1998 (Note that only the 'mod' functions are actually for fields GF(2^m).
1999 BN_GF2m_add() is misnomer, but this is for the sake of consistency.)
2001 For some functions, an the irreducible polynomial defining a
2002 field can be given as an 'unsigned int[]' with strictly
2003 decreasing elements giving the indices of those bits that are set;
2004 i.e., p[] represents the polynomial
2005 f(t) = t^p[0] + t^p[1] + ... + t^p[k]
2007 p[0] > p[1] > ... > p[k] = 0.
2008 This applies to the following functions:
2013 BN_GF2m_mod_inv_arr [wrapper for BN_GF2m_mod_inv]
2014 BN_GF2m_mod_div_arr [wrapper for BN_GF2m_mod_div]
2016 BN_GF2m_mod_sqrt_arr
2017 BN_GF2m_mod_solve_quad_arr
2021 Conversion can be performed by the following functions:
2026 bntest.c has additional tests for binary polynomial arithmetic.
2028 Two implementations for BN_GF2m_mod_div() are available.
2029 The default algorithm simply uses BN_GF2m_mod_inv() and
2030 BN_GF2m_mod_mul(). The alternative algorithm is compiled in only
2031 if OPENSSL_SUN_GF2M_DIV is defined (patent pending; read the
2032 copyright notice in crypto/bn/bn_gf2m.c before enabling it).
2034 [Sheueling Chang Shantz and Douglas Stebila
2035 (Sun Microsystems Laboratories)]
2037 *) Add new error code 'ERR_R_DISABLED' that can be used when some
2038 functionality is disabled at compile-time.
2039 [Douglas Stebila <douglas.stebila@sun.com>]
2041 *) Change default behaviour of 'openssl asn1parse' so that more
2042 information is visible when viewing, e.g., a certificate:
2044 Modify asn1_parse2 (crypto/asn1/asn1_par.c) so that in non-'dump'
2045 mode the content of non-printable OCTET STRINGs is output in a
2046 style similar to INTEGERs, but with '[HEX DUMP]' prepended to
2047 avoid the appearance of a printable string.
2048 [Nils Larsch <nla@trustcenter.de>]
2050 *) Add 'asn1_flag' and 'asn1_form' member to EC_GROUP with access
2052 EC_GROUP_set_asn1_flag()
2053 EC_GROUP_get_asn1_flag()
2054 EC_GROUP_set_point_conversion_form()
2055 EC_GROUP_get_point_conversion_form()
2056 These control ASN1 encoding details:
2057 - Curves (i.e., groups) are encoded explicitly unless asn1_flag
2058 has been set to OPENSSL_EC_NAMED_CURVE.
2059 - Points are encoded in uncompressed form by default; options for
2060 asn1_for are as for point2oct, namely
2061 POINT_CONVERSION_COMPRESSED
2062 POINT_CONVERSION_UNCOMPRESSED
2063 POINT_CONVERSION_HYBRID
2065 Also add 'seed' and 'seed_len' members to EC_GROUP with access
2068 EC_GROUP_get0_seed()
2069 EC_GROUP_get_seed_len()
2070 This is used only for ASN1 purposes (so far).
2071 [Nils Larsch <nla@trustcenter.de>]
2073 *) Add 'field_type' member to EC_METHOD, which holds the NID
2074 of the appropriate field type OID. The new function
2075 EC_METHOD_get_field_type() returns this value.
2076 [Nils Larsch <nla@trustcenter.de>]
2081 EC_POINT_point2hex()
2082 EC_POINT_hex2point()
2083 providing useful interfaces to EC_POINT_point2oct() and
2084 EC_POINT_oct2point().
2085 [Nils Larsch <nla@trustcenter.de>]
2087 *) Change internals of the EC library so that the functions
2088 EC_GROUP_set_generator()
2089 EC_GROUP_get_generator()
2090 EC_GROUP_get_order()
2091 EC_GROUP_get_cofactor()
2092 are implemented directly in crypto/ec/ec_lib.c and not dispatched
2093 to methods, which would lead to unnecessary code duplication when
2094 adding different types of curves.
2095 [Nils Larsch <nla@trustcenter.de> with input by Bodo Moeller]
2097 *) Implement compute_wNAF (crypto/ec/ec_mult.c) without BIGNUM
2098 arithmetic, and such that modified wNAFs are generated
2099 (which avoid length expansion in many cases).
2102 *) Add a function EC_GROUP_check_discriminant() (defined via
2103 EC_METHOD) that verifies that the curve discriminant is non-zero.
2105 Add a function EC_GROUP_check() that makes some sanity tests
2106 on a EC_GROUP, its generator and order. This includes
2107 EC_GROUP_check_discriminant().
2108 [Nils Larsch <nla@trustcenter.de>]
2110 *) Add ECDSA in new directory crypto/ecdsa/.
2112 Add applications 'openssl ecparam' and 'openssl ecdsa'
2113 (these are based on 'openssl dsaparam' and 'openssl dsa').
2115 ECDSA support is also included in various other files across the
2116 library. Most notably,
2117 - 'openssl req' now has a '-newkey ecdsa:file' option;
2118 - EVP_PKCS82PKEY (crypto/evp/evp_pkey.c) now can handle ECDSA;
2119 - X509_PUBKEY_get (crypto/asn1/x_pubkey.c) and
2120 d2i_PublicKey (crypto/asn1/d2i_pu.c) have been modified to make
2121 them suitable for ECDSA where domain parameters must be
2122 extracted before the specific public key;
2123 - ECDSA engine support has been added.
2124 [Nils Larsch <nla@trustcenter.de>]
2126 *) Include some named elliptic curves, and add OIDs from X9.62,
2127 SECG, and WAP/WTLS. Each curve can be obtained from the new
2129 EC_GROUP_new_by_curve_name(),
2130 and the list of available named curves can be obtained with
2131 EC_get_builtin_curves().
2132 Also add a 'curve_name' member to EC_GROUP objects, which can be
2134 EC_GROUP_set_curve_name()
2135 EC_GROUP_get_curve_name()
2136 [Nils Larsch <larsch@trustcenter.de, Bodo Moeller]
2138 *) Remove a few calls to bn_wexpand() in BN_sqr() (the one in there
2139 was actually never needed) and in BN_mul(). The removal in BN_mul()
2140 required a small change in bn_mul_part_recursive() and the addition
2141 of the functions bn_cmp_part_words(), bn_sub_part_words() and
2142 bn_add_part_words(), which do the same thing as bn_cmp_words(),
2143 bn_sub_words() and bn_add_words() except they take arrays with
2147 Changes between 0.9.7m and 0.9.7n [xx XXX xxxx]
2149 *) In the SSL/TLS server implementation, be strict about session ID
2150 context matching (which matters if an application uses a single
2151 external cache for different purposes). Previously,
2152 out-of-context reuse was forbidden only if SSL_VERIFY_PEER was
2153 set. This did ensure strict client verification, but meant that,
2154 with applications using a single external cache for quite
2155 different requirements, clients could circumvent ciphersuite
2156 restrictions for a given session ID context by starting a session
2157 in a different context.
2160 Changes between 0.9.7l and 0.9.7m [23 Feb 2007]
2162 *) Cleanse PEM buffers before freeing them since they may contain
2164 [Benjamin Bennett <ben@psc.edu>]
2166 *) Include "!eNULL" in SSL_DEFAULT_CIPHER_LIST to make sure that
2167 a ciphersuite string such as "DEFAULT:RSA" cannot enable
2168 authentication-only ciphersuites.
2171 *) Since AES128 and AES256 share a single mask bit in the logic of
2172 ssl/ssl_ciph.c, the code for masking out disabled ciphers needs a
2173 kludge to work properly if AES128 is available and AES256 isn't.
2176 *) Expand security boundary to match 1.1.1 module.
2179 *) Remove redundant features: hash file source, editing of test vectors
2180 modify fipsld to use external fips_premain.c signature.
2183 *) New perl script mkfipsscr.pl to create shell scripts or batch files to
2184 run algorithm test programs.
2187 *) Make algorithm test programs more tolerant of whitespace.
2190 *) Have SSL/TLS server implementation tolerate "mismatched" record
2191 protocol version while receiving ClientHello even if the
2192 ClientHello is fragmented. (The server can't insist on the
2193 particular protocol version it has chosen before the ServerHello
2194 message has informed the client about his choice.)
2197 *) Load error codes if they are not already present instead of using a
2198 static variable. This allows them to be cleanly unloaded and reloaded.
2201 Changes between 0.9.7k and 0.9.7l [28 Sep 2006]
2203 *) Introduce limits to prevent malicious keys being able to
2204 cause a denial of service. (CVE-2006-2940)
2205 [Steve Henson, Bodo Moeller]
2207 *) Fix ASN.1 parsing of certain invalid structures that can result
2208 in a denial of service. (CVE-2006-2937) [Steve Henson]
2210 *) Fix buffer overflow in SSL_get_shared_ciphers() function.
2211 (CVE-2006-3738) [Tavis Ormandy and Will Drewry, Google Security Team]
2213 *) Fix SSL client code which could crash if connecting to a
2214 malicious SSLv2 server. (CVE-2006-4343)
2215 [Tavis Ormandy and Will Drewry, Google Security Team]
2217 *) Change ciphersuite string processing so that an explicit
2218 ciphersuite selects this one ciphersuite (so that "AES256-SHA"
2219 will no longer include "AES128-SHA"), and any other similar
2220 ciphersuite (same bitmap) from *other* protocol versions (so that
2221 "RC4-MD5" will still include both the SSL 2.0 ciphersuite and the
2222 SSL 3.0/TLS 1.0 ciphersuite). This is a backport combining
2223 changes from 0.9.8b and 0.9.8d.
2226 Changes between 0.9.7j and 0.9.7k [05 Sep 2006]
2228 *) Avoid PKCS #1 v1.5 signature attack discovered by Daniel Bleichenbacher
2229 (CVE-2006-4339) [Ben Laurie and Google Security Team]
2231 *) Change the Unix randomness entropy gathering to use poll() when
2232 possible instead of select(), since the latter has some
2233 undesirable limitations.
2234 [Darryl Miles via Richard Levitte and Bodo Moeller]
2236 *) Disable rogue ciphersuites:
2238 - SSLv2 0x08 0x00 0x80 ("RC4-64-MD5")
2239 - SSLv3/TLSv1 0x00 0x61 ("EXP1024-RC2-CBC-MD5")
2240 - SSLv3/TLSv1 0x00 0x60 ("EXP1024-RC4-MD5")
2242 The latter two were purportedly from
2243 draft-ietf-tls-56-bit-ciphersuites-0[01].txt, but do not really
2246 Also deactive the remaining ciphersuites from
2247 draft-ietf-tls-56-bit-ciphersuites-01.txt. These are just as
2248 unofficial, and the ID has long expired.
2251 *) Fix RSA blinding Heisenbug (problems sometimes occured on
2252 dual-core machines) and other potential thread-safety issues.
2255 Changes between 0.9.7i and 0.9.7j [04 May 2006]
2257 *) Adapt fipsld and the build system to link against the validated FIPS
2258 module in FIPS mode.
2261 *) Fixes for VC++ 2005 build under Windows.
2264 *) Add new Windows build target VC-32-GMAKE for VC++. This uses GNU make
2265 from a Windows bash shell such as MSYS. It is autodetected from the
2266 "config" script when run from a VC++ environment. Modify standard VC++
2267 build to use fipscanister.o from the GNU make build.
2270 Changes between 0.9.7h and 0.9.7i [14 Oct 2005]
2272 *) Wrapped the definition of EVP_MAX_MD_SIZE in a #ifdef OPENSSL_FIPS.
2273 The value now differs depending on if you build for FIPS or not.
2274 BEWARE! A program linked with a shared FIPSed libcrypto can't be
2275 safely run with a non-FIPSed libcrypto, as it may crash because of
2276 the difference induced by this change.
2279 Changes between 0.9.7g and 0.9.7h [11 Oct 2005]
2281 *) Remove the functionality of SSL_OP_MSIE_SSLV2_RSA_PADDING
2282 (part of SSL_OP_ALL). This option used to disable the
2283 countermeasure against man-in-the-middle protocol-version
2284 rollback in the SSL 2.0 server implementation, which is a bad
2285 idea. (CVE-2005-2969)
2287 [Bodo Moeller; problem pointed out by Yutaka Oiwa (Research Center
2288 for Information Security, National Institute of Advanced Industrial
2289 Science and Technology [AIST], Japan)]
2291 *) Minimal support for X9.31 signatures and PSS padding modes. This is
2292 mainly for FIPS compliance and not fully integrated at this stage.
2295 *) For DSA signing, unless DSA_FLAG_NO_EXP_CONSTTIME is set, perform
2296 the exponentiation using a fixed-length exponent. (Otherwise,
2297 the information leaked through timing could expose the secret key
2298 after many signatures; cf. Bleichenbacher's attack on DSA with
2302 *) Make a new fixed-window mod_exp implementation the default for
2303 RSA, DSA, and DH private-key operations so that the sequence of
2304 squares and multiplies and the memory access pattern are
2305 independent of the particular secret key. This will mitigate
2306 cache-timing and potential related attacks.
2308 BN_mod_exp_mont_consttime() is the new exponentiation implementation,
2309 and this is automatically used by BN_mod_exp_mont() if the new flag
2310 BN_FLG_EXP_CONSTTIME is set for the exponent. RSA, DSA, and DH
2311 will use this BN flag for private exponents unless the flag
2312 RSA_FLAG_NO_EXP_CONSTTIME, DSA_FLAG_NO_EXP_CONSTTIME, or
2313 DH_FLAG_NO_EXP_CONSTTIME, respectively, is set.
2315 [Matthew D Wood (Intel Corp), with some changes by Bodo Moeller]
2317 *) Change the client implementation for SSLv23_method() and
2318 SSLv23_client_method() so that is uses the SSL 3.0/TLS 1.0
2319 Client Hello message format if the SSL_OP_NO_SSLv2 option is set.
2320 (Previously, the SSL 2.0 backwards compatible Client Hello
2321 message format would be used even with SSL_OP_NO_SSLv2.)
2324 *) Add support for smime-type MIME parameter in S/MIME messages which some
2328 *) New function BN_MONT_CTX_set_locked() to set montgomery parameters in
2329 a threadsafe manner. Modify rsa code to use new function and add calls
2330 to dsa and dh code (which had race conditions before).
2333 *) Include the fixed error library code in the C error file definitions
2334 instead of fixing them up at runtime. This keeps the error code
2335 structures constant.
2338 Changes between 0.9.7f and 0.9.7g [11 Apr 2005]
2340 [NB: OpenSSL 0.9.7h and later 0.9.7 patch levels were released after
2343 *) Fixes for newer kerberos headers. NB: the casts are needed because
2344 the 'length' field is signed on one version and unsigned on another
2345 with no (?) obvious way to tell the difference, without these VC++
2346 complains. Also the "definition" of FAR (blank) is no longer included
2347 nor is the error ENOMEM. KRB5_PRIVATE has to be set to 1 to pick up
2348 some needed definitions.
2351 *) Undo Cygwin change.
2354 *) Added support for proxy certificates according to RFC 3820.
2355 Because they may be a security thread to unaware applications,
2356 they must be explicitely allowed in run-time. See
2357 docs/HOWTO/proxy_certificates.txt for further information.
2360 Changes between 0.9.7e and 0.9.7f [22 Mar 2005]
2362 *) Use (SSL_RANDOM_VALUE - 4) bytes of pseudo random data when generating
2363 server and client random values. Previously
2364 (SSL_RANDOM_VALUE - sizeof(time_t)) would be used which would result in
2365 less random data when sizeof(time_t) > 4 (some 64 bit platforms).
2367 This change has negligible security impact because:
2369 1. Server and client random values still have 24 bytes of pseudo random
2372 2. Server and client random values are sent in the clear in the initial
2375 3. The master secret is derived using the premaster secret (48 bytes in
2376 size for static RSA ciphersuites) as well as client server and random
2379 The OpenSSL team would like to thank the UK NISCC for bringing this issue
2382 [Stephen Henson, reported by UK NISCC]
2384 *) Use Windows randomness collection on Cygwin.
2387 *) Fix hang in EGD/PRNGD query when communication socket is closed
2388 prematurely by EGD/PRNGD.
2389 [Darren Tucker <dtucker@zip.com.au> via Lutz Jänicke, resolves #1014]
2391 *) Prompt for pass phrases when appropriate for PKCS12 input format.
2394 *) Back-port of selected performance improvements from development
2395 branch, as well as improved support for PowerPC platforms.
2398 *) Add lots of checks for memory allocation failure, error codes to indicate
2399 failure and freeing up memory if a failure occurs.
2400 [Nauticus Networks SSL Team <openssl@nauticusnet.com>, Steve Henson]
2402 *) Add new -passin argument to dgst.
2405 *) Perform some character comparisons of different types in X509_NAME_cmp:
2406 this is needed for some certificates that reencode DNs into UTF8Strings
2407 (in violation of RFC3280) and can't or wont issue name rollover
2411 *) Make an explicit check during certificate validation to see that
2412 the CA setting in each certificate on the chain is correct. As a
2413 side effect always do the following basic checks on extensions,
2414 not just when there's an associated purpose to the check:
2416 - if there is an unhandled critical extension (unless the user
2417 has chosen to ignore this fault)
2418 - if the path length has been exceeded (if one is set at all)
2419 - that certain extensions fit the associated purpose (if one has
2423 Changes between 0.9.7d and 0.9.7e [25 Oct 2004]
2425 *) Avoid a race condition when CRLs are checked in a multi threaded
2426 environment. This would happen due to the reordering of the revoked
2427 entries during signature checking and serial number lookup. Now the
2428 encoding is cached and the serial number sort performed under a lock.
2429 Add new STACK function sk_is_sorted().
2432 *) Add Delta CRL to the extension code.
2435 *) Various fixes to s3_pkt.c so alerts are sent properly.
2436 [David Holmes <d.holmes@f5.com>]
2438 *) Reduce the chances of duplicate issuer name and serial numbers (in
2439 violation of RFC3280) using the OpenSSL certificate creation utilities.
2440 This is done by creating a random 64 bit value for the initial serial
2441 number when a serial number file is created or when a self signed
2442 certificate is created using 'openssl req -x509'. The initial serial
2443 number file is created using 'openssl x509 -next_serial' in CA.pl
2444 rather than being initialized to 1.
2447 Changes between 0.9.7c and 0.9.7d [17 Mar 2004]
2449 *) Fix null-pointer assignment in do_change_cipher_spec() revealed
2450 by using the Codenomicon TLS Test Tool (CVE-2004-0079)
2451 [Joe Orton, Steve Henson]
2453 *) Fix flaw in SSL/TLS handshaking when using Kerberos ciphersuites
2455 [Joe Orton, Steve Henson]
2457 *) Make it possible to have multiple active certificates with the same
2458 subject in the CA index file. This is done only if the keyword
2459 'unique_subject' is set to 'no' in the main CA section (default
2460 if 'CA_default') of the configuration file. The value is saved
2461 with the database itself in a separate index attribute file,
2462 named like the index file with '.attr' appended to the name.
2465 *) X509 verify fixes. Disable broken certificate workarounds when
2466 X509_V_FLAGS_X509_STRICT is set. Check CRL issuer has cRLSign set if
2467 keyUsage extension present. Don't accept CRLs with unhandled critical
2468 extensions: since verify currently doesn't process CRL extensions this
2469 rejects a CRL with *any* critical extensions. Add new verify error codes
2473 *) When creating an OCSP nonce use an OCTET STRING inside the extnValue.
2474 A clarification of RFC2560 will require the use of OCTET STRINGs and
2475 some implementations cannot handle the current raw format. Since OpenSSL
2476 copies and compares OCSP nonces as opaque blobs without any attempt at
2477 parsing them this should not create any compatibility issues.
2480 *) New md flag EVP_MD_CTX_FLAG_REUSE this allows md_data to be reused when
2481 calling EVP_MD_CTX_copy_ex() to avoid calling OPENSSL_malloc(). Without
2482 this HMAC (and other) operations are several times slower than OpenSSL
2486 *) Print out GeneralizedTime and UTCTime in ASN1_STRING_print_ex().
2487 [Peter Sylvester <Peter.Sylvester@EdelWeb.fr>]
2489 *) Use the correct content when signing type "other".
2492 Changes between 0.9.7b and 0.9.7c [30 Sep 2003]
2494 *) Fix various bugs revealed by running the NISCC test suite:
2496 Stop out of bounds reads in the ASN1 code when presented with
2497 invalid tags (CVE-2003-0543 and CVE-2003-0544).
2499 Free up ASN1_TYPE correctly if ANY type is invalid (CVE-2003-0545).
2501 If verify callback ignores invalid public key errors don't try to check
2502 certificate signature with the NULL public key.
2506 *) New -ignore_err option in ocsp application to stop the server
2507 exiting on the first error in a request.
2510 *) In ssl3_accept() (ssl/s3_srvr.c) only accept a client certificate
2511 if the server requested one: as stated in TLS 1.0 and SSL 3.0
2515 *) In ssl3_get_client_hello() (ssl/s3_srvr.c), tolerate additional
2516 extra data after the compression methods not only for TLS 1.0
2517 but also for SSL 3.0 (as required by the specification).
2518 [Bodo Moeller; problem pointed out by Matthias Loepfe]
2520 *) Change X509_certificate_type() to mark the key as exported/exportable
2521 when it's 512 *bits* long, not 512 bytes.
2524 *) Change AES_cbc_encrypt() so it outputs exact multiple of
2525 blocks during encryption.
2528 *) Various fixes to base64 BIO and non blocking I/O. On write
2529 flushes were not handled properly if the BIO retried. On read
2530 data was not being buffered properly and had various logic bugs.
2531 This also affects blocking I/O when the data being decoded is a
2535 *) Various S/MIME bugfixes and compatibility changes:
2536 output correct application/pkcs7 MIME type if
2537 PKCS7_NOOLDMIMETYPE is set. Tolerate some broken signatures.
2538 Output CR+LF for EOL if PKCS7_CRLFEOL is set (this makes opening
2539 of files as .eml work). Correctly handle very long lines in MIME
2543 Changes between 0.9.7a and 0.9.7b [10 Apr 2003]
2545 *) Countermeasure against the Klima-Pokorny-Rosa extension of
2546 Bleichbacher's attack on PKCS #1 v1.5 padding: treat
2547 a protocol version number mismatch like a decryption error
2548 in ssl3_get_client_key_exchange (ssl/s3_srvr.c).
2551 *) Turn on RSA blinding by default in the default implementation
2552 to avoid a timing attack. Applications that don't want it can call
2553 RSA_blinding_off() or use the new flag RSA_FLAG_NO_BLINDING.
2554 They would be ill-advised to do so in most cases.
2555 [Ben Laurie, Steve Henson, Geoff Thorpe, Bodo Moeller]
2557 *) Change RSA blinding code so that it works when the PRNG is not
2558 seeded (in this case, the secret RSA exponent is abused as
2559 an unpredictable seed -- if it is not unpredictable, there
2560 is no point in blinding anyway). Make RSA blinding thread-safe
2561 by remembering the creator's thread ID in rsa->blinding and
2562 having all other threads use local one-time blinding factors
2563 (this requires more computation than sharing rsa->blinding, but
2564 avoids excessive locking; and if an RSA object is not shared
2565 between threads, blinding will still be very fast).
2568 *) Fixed a typo bug that would cause ENGINE_set_default() to set an
2569 ENGINE as defaults for all supported algorithms irrespective of
2570 the 'flags' parameter. 'flags' is now honoured, so applications
2571 should make sure they are passing it correctly.
2574 *) Target "mingw" now allows native Windows code to be generated in
2575 the Cygwin environment as well as with the MinGW compiler.
2578 Changes between 0.9.7 and 0.9.7a [19 Feb 2003]
2580 *) In ssl3_get_record (ssl/s3_pkt.c), minimize information leaked
2581 via timing by performing a MAC computation even if incorrrect
2582 block cipher padding has been found. This is a countermeasure
2583 against active attacks where the attacker has to distinguish
2584 between bad padding and a MAC verification error. (CVE-2003-0078)
2586 [Bodo Moeller; problem pointed out by Brice Canvel (EPFL),
2587 Alain Hiltgen (UBS), Serge Vaudenay (EPFL), and
2588 Martin Vuagnoux (EPFL, Ilion)]
2590 *) Make the no-err option work as intended. The intention with no-err
2591 is not to have the whole error stack handling routines removed from
2592 libcrypto, it's only intended to remove all the function name and
2593 reason texts, thereby removing some of the footprint that may not
2594 be interesting if those errors aren't displayed anyway.
2596 NOTE: it's still possible for any application or module to have it's
2597 own set of error texts inserted. The routines are there, just not
2598 used by default when no-err is given.
2601 *) Add support for FreeBSD on IA64.
2602 [dirk.meyer@dinoex.sub.org via Richard Levitte, resolves #454]
2604 *) Adjust DES_cbc_cksum() so it returns the same value as the MIT
2605 Kerberos function mit_des_cbc_cksum(). Before this change,
2606 the value returned by DES_cbc_cksum() was like the one from
2607 mit_des_cbc_cksum(), except the bytes were swapped.
2608 [Kevin Greaney <Kevin.Greaney@hp.com> and Richard Levitte]
2610 *) Allow an application to disable the automatic SSL chain building.
2611 Before this a rather primitive chain build was always performed in
2612 ssl3_output_cert_chain(): an application had no way to send the
2613 correct chain if the automatic operation produced an incorrect result.
2615 Now the chain builder is disabled if either:
2617 1. Extra certificates are added via SSL_CTX_add_extra_chain_cert().
2619 2. The mode flag SSL_MODE_NO_AUTO_CHAIN is set.
2621 The reasoning behind this is that an application would not want the
2622 auto chain building to take place if extra chain certificates are
2623 present and it might also want a means of sending no additional
2624 certificates (for example the chain has two certificates and the
2628 *) Add the possibility to build without the ENGINE framework.
2629 [Steven Reddie <smr@essemer.com.au> via Richard Levitte]
2631 *) Under Win32 gmtime() can return NULL: check return value in
2632 OPENSSL_gmtime(). Add error code for case where gmtime() fails.
2635 *) DSA routines: under certain error conditions uninitialized BN objects
2636 could be freed. Solution: make sure initialization is performed early
2637 enough. (Reported and fix supplied by Ivan D Nestlerode <nestler@MIT.EDU>,
2638 Nils Larsch <nla@trustcenter.de> via PR#459)
2641 *) Another fix for SSLv2 session ID handling: the session ID was incorrectly
2642 checked on reconnect on the client side, therefore session resumption
2643 could still fail with a "ssl session id is different" error. This
2644 behaviour is masked when SSL_OP_ALL is used due to
2645 SSL_OP_MICROSOFT_SESS_ID_BUG being set.
2646 Behaviour observed by Crispin Flowerday <crispin@flowerday.cx> as
2647 followup to PR #377.
2650 *) IA-32 assembler support enhancements: unified ELF targets, support
2651 for SCO/Caldera platforms, fix for Cygwin shared build.
2654 *) Add support for FreeBSD on sparc64. As a consequence, support for
2655 FreeBSD on non-x86 processors is separate from x86 processors on
2656 the config script, much like the NetBSD support.
2657 [Richard Levitte & Kris Kennaway <kris@obsecurity.org>]
2659 Changes between 0.9.6h and 0.9.7 [31 Dec 2002]
2661 [NB: OpenSSL 0.9.6i and later 0.9.6 patch levels were released after
2664 *) Fix session ID handling in SSLv2 client code: the SERVER FINISHED
2665 code (06) was taken as the first octet of the session ID and the last
2666 octet was ignored consequently. As a result SSLv2 client side session
2667 caching could not have worked due to the session ID mismatch between
2669 Behaviour observed by Crispin Flowerday <crispin@flowerday.cx> as
2673 *) Change the declaration of needed Kerberos libraries to use EX_LIBS
2674 instead of the special (and badly supported) LIBKRB5. LIBKRB5 is
2678 *) The hw_ncipher.c engine requires dynamic locks. Unfortunately, it
2679 seems that in spite of existing for more than a year, many application
2680 author have done nothing to provide the necessary callbacks, which
2681 means that this particular engine will not work properly anywhere.
2682 This is a very unfortunate situation which forces us, in the name
2683 of usability, to give the hw_ncipher.c a static lock, which is part
2685 NOTE: This is for the 0.9.7 series ONLY. This hack will never
2686 appear in 0.9.8 or later. We EXPECT application authors to have
2687 dealt properly with this when 0.9.8 is released (unless we actually
2688 make such changes in the libcrypto locking code that changes will
2689 have to be made anyway).
2692 *) In asn1_d2i_read_bio() repeatedly call BIO_read() until all content
2693 octets have been read, EOF or an error occurs. Without this change
2694 some truncated ASN1 structures will not produce an error.
2697 *) Disable Heimdal support, since it hasn't been fully implemented.
2698 Still give the possibility to force the use of Heimdal, but with
2699 warnings and a request that patches get sent to openssl-dev.
2702 *) Add the VC-CE target, introduce the WINCE sysname, and add
2703 INSTALL.WCE and appropriate conditionals to make it build.
2704 [Steven Reddie <smr@essemer.com.au> via Richard Levitte]
2706 *) Change the DLL names for Cygwin to cygcrypto-x.y.z.dll and
2707 cygssl-x.y.z.dll, where x, y and z are the major, minor and
2708 edit numbers of the version.
2709 [Corinna Vinschen <vinschen@redhat.com> and Richard Levitte]
2711 *) Introduce safe string copy and catenation functions
2712 (BUF_strlcpy() and BUF_strlcat()).
2713 [Ben Laurie (CHATS) and Richard Levitte]
2715 *) Avoid using fixed-size buffers for one-line DNs.
2716 [Ben Laurie (CHATS)]
2718 *) Add BUF_MEM_grow_clean() to avoid information leakage when
2719 resizing buffers containing secrets, and use where appropriate.
2720 [Ben Laurie (CHATS)]
2722 *) Avoid using fixed size buffers for configuration file location.
2723 [Ben Laurie (CHATS)]
2725 *) Avoid filename truncation for various CA files.
2726 [Ben Laurie (CHATS)]
2728 *) Use sizeof in preference to magic numbers.
2729 [Ben Laurie (CHATS)]
2731 *) Avoid filename truncation in cert requests.
2732 [Ben Laurie (CHATS)]
2734 *) Add assertions to check for (supposedly impossible) buffer
2736 [Ben Laurie (CHATS)]
2738 *) Don't cache truncated DNS entries in the local cache (this could
2739 potentially lead to a spoofing attack).
2740 [Ben Laurie (CHATS)]
2742 *) Fix various buffers to be large enough for hex/decimal
2743 representations in a platform independent manner.
2744 [Ben Laurie (CHATS)]
2746 *) Add CRYPTO_realloc_clean() to avoid information leakage when
2747 resizing buffers containing secrets, and use where appropriate.
2748 [Ben Laurie (CHATS)]
2750 *) Add BIO_indent() to avoid much slightly worrying code to do
2752 [Ben Laurie (CHATS)]
2754 *) Convert sprintf()/BIO_puts() to BIO_printf().
2755 [Ben Laurie (CHATS)]
2757 *) buffer_gets() could terminate with the buffer only half
2759 [Ben Laurie (CHATS)]
2761 *) Add assertions to prevent user-supplied crypto functions from
2762 overflowing internal buffers by having large block sizes, etc.
2763 [Ben Laurie (CHATS)]
2765 *) New OPENSSL_assert() macro (similar to assert(), but enabled
2767 [Ben Laurie (CHATS)]
2769 *) Eliminate unused copy of key in RC4.
2770 [Ben Laurie (CHATS)]
2772 *) Eliminate unused and incorrectly sized buffers for IV in pem.h.
2773 [Ben Laurie (CHATS)]
2775 *) Fix off-by-one error in EGD path.
2776 [Ben Laurie (CHATS)]
2778 *) If RANDFILE path is too long, ignore instead of truncating.
2779 [Ben Laurie (CHATS)]
2781 *) Eliminate unused and incorrectly sized X.509 structure
2783 [Ben Laurie (CHATS)]
2785 *) Eliminate unused and dangerous function knumber().
2786 [Ben Laurie (CHATS)]
2788 *) Eliminate unused and dangerous structure, KSSL_ERR.
2789 [Ben Laurie (CHATS)]
2791 *) Protect against overlong session ID context length in an encoded
2792 session object. Since these are local, this does not appear to be
2794 [Ben Laurie (CHATS)]
2796 *) Change from security patch (see 0.9.6e below) that did not affect
2797 the 0.9.6 release series:
2799 Remote buffer overflow in SSL3 protocol - an attacker could
2800 supply an oversized master key in Kerberos-enabled versions.
2802 [Ben Laurie (CHATS)]
2804 *) Change the SSL kerb5 codes to match RFC 2712.
2807 *) Make -nameopt work fully for req and add -reqopt switch.
2808 [Michael Bell <michael.bell@rz.hu-berlin.de>, Steve Henson]
2810 *) The "block size" for block ciphers in CFB and OFB mode should be 1.
2811 [Steve Henson, reported by Yngve Nysaeter Pettersen <yngve@opera.com>]
2813 *) Make sure tests can be performed even if the corresponding algorithms
2814 have been removed entirely. This was also the last step to make
2815 OpenSSL compilable with DJGPP under all reasonable conditions.
2816 [Richard Levitte, Doug Kaufman <dkaufman@rahul.net>]
2818 *) Add cipher selection rules COMPLEMENTOFALL and COMPLEMENTOFDEFAULT
2819 to allow version independent disabling of normally unselected ciphers,
2820 which may be activated as a side-effect of selecting a single cipher.
2822 (E.g., cipher list string "RSA" enables ciphersuites that are left
2823 out of "ALL" because they do not provide symmetric encryption.
2824 "RSA:!COMPLEMEMENTOFALL" avoids these unsafe ciphersuites.)
2825 [Lutz Jaenicke, Bodo Moeller]
2827 *) Add appropriate support for separate platform-dependent build
2828 directories. The recommended way to make a platform-dependent
2829 build directory is the following (tested on Linux), maybe with
2832 # Place yourself outside of the OpenSSL source tree. In
2833 # this example, the environment variable OPENSSL_SOURCE
2834 # is assumed to contain the absolute OpenSSL source directory.
2835 mkdir -p objtree/"`uname -s`-`uname -r`-`uname -m`"
2836 cd objtree/"`uname -s`-`uname -r`-`uname -m`"
2837 (cd $OPENSSL_SOURCE; find . -type f) | while read F; do
2838 mkdir -p `dirname $F`
2839 ln -s $OPENSSL_SOURCE/$F $F
2842 To be absolutely sure not to disturb the source tree, a "make clean"
2843 is a good thing. If it isn't successfull, don't worry about it,
2844 it probably means the source directory is very clean.
2847 *) Make sure any ENGINE control commands make local copies of string
2848 pointers passed to them whenever necessary. Otherwise it is possible
2849 the caller may have overwritten (or deallocated) the original string
2850 data when a later ENGINE operation tries to use the stored values.
2851 [Götz Babin-Ebell <babinebell@trustcenter.de>]
2853 *) Improve diagnostics in file reading and command-line digests.
2854 [Ben Laurie aided and abetted by Solar Designer <solar@openwall.com>]
2856 *) Add AES modes CFB and OFB to the object database. Correct an
2857 error in AES-CFB decryption.
2860 *) Remove most calls to EVP_CIPHER_CTX_cleanup() in evp_enc.c, this
2861 allows existing EVP_CIPHER_CTX structures to be reused after
2862 calling EVP_*Final(). This behaviour is used by encryption
2863 BIOs and some applications. This has the side effect that
2864 applications must explicitly clean up cipher contexts with
2865 EVP_CIPHER_CTX_cleanup() or they will leak memory.
2868 *) Check the values of dna and dnb in bn_mul_recursive before calling
2869 bn_mul_comba (a non zero value means the a or b arrays do not contain
2870 n2 elements) and fallback to bn_mul_normal if either is not zero.
2873 *) Fix escaping of non-ASCII characters when using the -subj option
2874 of the "openssl req" command line tool. (Robert Joop <joop@fokus.gmd.de>)
2877 *) Make object definitions compliant to LDAP (RFC2256): SN is the short
2878 form for "surname", serialNumber has no short form.
2879 Use "mail" as the short name for "rfc822Mailbox" according to RFC2798;
2880 therefore remove "mail" short name for "internet 7".
2881 The OID for unique identifiers in X509 certificates is
2882 x500UniqueIdentifier, not uniqueIdentifier.
2883 Some more OID additions. (Michael Bell <michael.bell@rz.hu-berlin.de>)
2886 *) Add an "init" command to the ENGINE config module and auto initialize
2887 ENGINEs. Without any "init" command the ENGINE will be initialized
2888 after all ctrl commands have been executed on it. If init=1 the
2889 ENGINE is initailized at that point (ctrls before that point are run
2890 on the uninitialized ENGINE and after on the initialized one). If
2891 init=0 then the ENGINE will not be iniatialized at all.
2894 *) Fix the 'app_verify_callback' interface so that the user-defined
2895 argument is actually passed to the callback: In the
2896 SSL_CTX_set_cert_verify_callback() prototype, the callback
2897 declaration has been changed from
2900 int (*cb)(X509_STORE_CTX *,void *);
2901 in ssl_verify_cert_chain (ssl/ssl_cert.c), the call
2902 i=s->ctx->app_verify_callback(&ctx)
2903 has been changed into
2904 i=s->ctx->app_verify_callback(&ctx, s->ctx->app_verify_arg).
2906 To update applications using SSL_CTX_set_cert_verify_callback(),
2907 a dummy argument can be added to their callback functions.
2908 [D. K. Smetters <smetters@parc.xerox.com>]
2910 *) Added the '4758cca' ENGINE to support IBM 4758 cards.
2911 [Maurice Gittens <maurice@gittens.nl>, touchups by Geoff Thorpe]
2913 *) Add and OPENSSL_LOAD_CONF define which will cause
2914 OpenSSL_add_all_algorithms() to load the openssl.cnf config file.
2915 This allows older applications to transparently support certain
2916 OpenSSL features: such as crypto acceleration and dynamic ENGINE loading.
2917 Two new functions OPENSSL_add_all_algorithms_noconf() which will never
2918 load the config file and OPENSSL_add_all_algorithms_conf() which will
2919 always load it have also been added.
2922 *) Add the OFB, CFB and CTR (all with 128 bit feedback) to AES.
2923 Adjust NIDs and EVP layer.
2924 [Stephen Sprunk <stephen@sprunk.org> and Richard Levitte]
2926 *) Config modules support in openssl utility.
2928 Most commands now load modules from the config file,
2929 though in a few (such as version) this isn't done
2930 because it couldn't be used for anything.
2932 In the case of ca and req the config file used is
2933 the same as the utility itself: that is the -config
2934 command line option can be used to specify an
2938 *) Move default behaviour from OPENSSL_config(). If appname is NULL
2939 use "openssl_conf" if filename is NULL use default openssl config file.
2942 *) Add an argument to OPENSSL_config() to allow the use of an alternative
2943 config section name. Add a new flag to tolerate a missing config file
2944 and move code to CONF_modules_load_file().
2947 *) Support for crypto accelerator cards from Accelerated Encryption
2948 Processing, www.aep.ie. (Use engine 'aep')
2949 The support was copied from 0.9.6c [engine] and adapted/corrected
2950 to work with the new engine framework.
2951 [AEP Inc. and Richard Levitte]
2953 *) Support for SureWare crypto accelerator cards from Baltimore
2954 Technologies. (Use engine 'sureware')
2955 The support was copied from 0.9.6c [engine] and adapted
2956 to work with the new engine framework.
2959 *) Have the CHIL engine fork-safe (as defined by nCipher) and actually
2960 make the newer ENGINE framework commands for the CHIL engine work.
2961 [Toomas Kiisk <vix@cyber.ee> and Richard Levitte]
2963 *) Make it possible to produce shared libraries on ReliantUNIX.
2964 [Robert Dahlem <Robert.Dahlem@ffm2.siemens.de> via Richard Levitte]
2966 *) Add the configuration target debug-linux-ppro.
2967 Make 'openssl rsa' use the general key loading routines
2968 implemented in apps.c, and make those routines able to
2969 handle the key format FORMAT_NETSCAPE and the variant
2971 [Toomas Kiisk <vix@cyber.ee> via Richard Levitte]
2973 *) Fix a crashbug and a logic bug in hwcrhk_load_pubkey().
2974 [Toomas Kiisk <vix@cyber.ee> via Richard Levitte]
2976 *) Add -keyform to rsautl, and document -engine.
2977 [Richard Levitte, inspired by Toomas Kiisk <vix@cyber.ee>]
2979 *) Change BIO_new_file (crypto/bio/bss_file.c) to use new
2980 BIO_R_NO_SUCH_FILE error code rather than the generic
2981 ERR_R_SYS_LIB error code if fopen() fails with ENOENT.
2984 *) Add new functions
2986 ERR_peek_last_error_line
2987 ERR_peek_last_error_line_data.
2988 These are similar to
2991 ERR_peek_error_line_data,
2992 but report on the latest error recorded rather than the first one
2993 still in the error queue.
2994 [Ben Laurie, Bodo Moeller]
2996 *) default_algorithms option in ENGINE config module. This allows things
2998 default_algorithms = ALL
2999 default_algorithms = RSA, DSA, RAND, CIPHERS, DIGESTS
3002 *) Prelminary ENGINE config module.
3005 *) New experimental application configuration code.
3008 *) Change the AES code to follow the same name structure as all other
3009 symmetric ciphers, and behave the same way. Move everything to
3010 the directory crypto/aes, thereby obsoleting crypto/rijndael.
3011 [Stephen Sprunk <stephen@sprunk.org> and Richard Levitte]
3013 *) SECURITY: remove unsafe setjmp/signal interaction from ui_openssl.c.
3014 [Ben Laurie and Theo de Raadt]
3016 *) Add option to output public keys in req command.
3017 [Massimiliano Pala madwolf@openca.org]
3019 *) Use wNAFs in EC_POINTs_mul() for improved efficiency
3020 (up to about 10% better than before for P-192 and P-224).
3023 *) New functions/macros
3025 SSL_CTX_set_msg_callback(ctx, cb)
3026 SSL_CTX_set_msg_callback_arg(ctx, arg)
3027 SSL_set_msg_callback(ssl, cb)
3028 SSL_set_msg_callback_arg(ssl, arg)
3030 to request calling a callback function
3032 void cb(int write_p, int version, int content_type,
3033 const void *buf, size_t len, SSL *ssl, void *arg)
3035 whenever a protocol message has been completely received
3036 (write_p == 0) or sent (write_p == 1). Here 'version' is the
3037 protocol version according to which the SSL library interprets
3038 the current protocol message (SSL2_VERSION, SSL3_VERSION, or
3039 TLS1_VERSION). 'content_type' is 0 in the case of SSL 2.0, or
3040 the content type as defined in the SSL 3.0/TLS 1.0 protocol
3041 specification (change_cipher_spec(20), alert(21), handshake(22)).
3042 'buf' and 'len' point to the actual message, 'ssl' to the
3043 SSL object, and 'arg' is the application-defined value set by
3044 SSL[_CTX]_set_msg_callback_arg().
3046 'openssl s_client' and 'openssl s_server' have new '-msg' options
3047 to enable a callback that displays all protocol messages.
3050 *) Change the shared library support so shared libraries are built as
3051 soon as the corresponding static library is finished, and thereby get
3052 openssl and the test programs linked against the shared library.
3053 This still only happens when the keyword "shard" has been given to
3054 the configuration scripts.
3056 NOTE: shared library support is still an experimental thing, and
3057 backward binary compatibility is still not guaranteed.
3058 ["Maciej W. Rozycki" <macro@ds2.pg.gda.pl> and Richard Levitte]
3060 *) Add support for Subject Information Access extension.
3061 [Peter Sylvester <Peter.Sylvester@EdelWeb.fr>]
3063 *) Make BUF_MEM_grow() behaviour more consistent: Initialise to zero
3064 additional bytes when new memory had to be allocated, not just
3065 when reusing an existing buffer.
3068 *) New command line and configuration option 'utf8' for the req command.
3069 This allows field values to be specified as UTF8 strings.
3072 *) Add -multi and -mr options to "openssl speed" - giving multiple parallel
3073 runs for the former and machine-readable output for the latter.
3076 *) Add '-noemailDN' option to 'openssl ca'. This prevents inclusion
3077 of the e-mail address in the DN (i.e., it will go into a certificate
3078 extension only). The new configuration file option 'email_in_dn = no'
3079 has the same effect.
3080 [Massimiliano Pala madwolf@openca.org]
3082 *) Change all functions with names starting with des_ to be starting
3083 with DES_ instead. Add wrappers that are compatible with libdes,
3084 but are named _ossl_old_des_*. Finally, add macros that map the
3085 des_* symbols to the corresponding _ossl_old_des_* if libdes
3086 compatibility is desired. If OpenSSL 0.9.6c compatibility is
3087 desired, the des_* symbols will be mapped to DES_*, with one
3090 Since we provide two compatibility mappings, the user needs to
3091 define the macro OPENSSL_DES_LIBDES_COMPATIBILITY if libdes
3092 compatibility is desired. The default (i.e., when that macro
3093 isn't defined) is OpenSSL 0.9.6c compatibility.
3095 There are also macros that enable and disable the support of old
3096 des functions altogether. Those are OPENSSL_ENABLE_OLD_DES_SUPPORT
3097 and OPENSSL_DISABLE_OLD_DES_SUPPORT. If none or both of those
3098 are defined, the default will apply: to support the old des routines.
3100 In either case, one must include openssl/des.h to get the correct
3101 definitions. Do not try to just include openssl/des_old.h, that
3104 NOTE: This is a major break of an old API into a new one. Software
3105 authors are encouraged to switch to the DES_ style functions. Some
3106 time in the future, des_old.h and the libdes compatibility functions
3107 will be disable (i.e. OPENSSL_DISABLE_OLD_DES_SUPPORT will be the
3108 default), and then completely removed.
3111 *) Test for certificates which contain unsupported critical extensions.
3112 If such a certificate is found during a verify operation it is
3113 rejected by default: this behaviour can be overridden by either
3114 handling the new error X509_V_ERR_UNHANDLED_CRITICAL_EXTENSION or
3115 by setting the verify flag X509_V_FLAG_IGNORE_CRITICAL. A new function
3116 X509_supported_extension() has also been added which returns 1 if a
3117 particular extension is supported.
3120 *) Modify the behaviour of EVP cipher functions in similar way to digests
3121 to retain compatibility with existing code.
3124 *) Modify the behaviour of EVP_DigestInit() and EVP_DigestFinal() to retain
3125 compatibility with existing code. In particular the 'ctx' parameter does
3126 not have to be to be initialized before the call to EVP_DigestInit() and
3127 it is tidied up after a call to EVP_DigestFinal(). New function
3128 EVP_DigestFinal_ex() which does not tidy up the ctx. Similarly function
3129 EVP_MD_CTX_copy() changed to not require the destination to be
3130 initialized valid and new function EVP_MD_CTX_copy_ex() added which
3131 requires the destination to be valid.
3133 Modify all the OpenSSL digest calls to use EVP_DigestInit_ex(),
3134 EVP_DigestFinal_ex() and EVP_MD_CTX_copy_ex().
3137 *) Change ssl3_get_message (ssl/s3_both.c) and the functions using it
3138 so that complete 'Handshake' protocol structures are kept in memory
3139 instead of overwriting 'msg_type' and 'length' with 'body' data.
3142 *) Add an implementation of SSL_add_dir_cert_subjects_to_stack for Win32.
3143 [Massimo Santin via Richard Levitte]
3145 *) Major restructuring to the underlying ENGINE code. This includes
3146 reduction of linker bloat, separation of pure "ENGINE" manipulation
3147 (initialisation, etc) from functionality dealing with implementations
3148 of specific crypto iterfaces. This change also introduces integrated
3149 support for symmetric ciphers and digest implementations - so ENGINEs
3150 can now accelerate these by providing EVP_CIPHER and EVP_MD
3151 implementations of their own. This is detailed in crypto/engine/README
3152 as it couldn't be adequately described here. However, there are a few
3153 API changes worth noting - some RSA, DSA, DH, and RAND functions that
3154 were changed in the original introduction of ENGINE code have now
3155 reverted back - the hooking from this code to ENGINE is now a good
3156 deal more passive and at run-time, operations deal directly with
3157 RSA_METHODs, DSA_METHODs (etc) as they did before, rather than
3158 dereferencing through an ENGINE pointer any more. Also, the ENGINE
3159 functions dealing with BN_MOD_EXP[_CRT] handlers have been removed -
3160 they were not being used by the framework as there is no concept of a
3161 BIGNUM_METHOD and they could not be generalised to the new
3162 'ENGINE_TABLE' mechanism that underlies the new code. Similarly,
3163 ENGINE_cpy() has been removed as it cannot be consistently defined in
3167 *) Change ASN1_GENERALIZEDTIME_check() to allow fractional seconds.
3170 *) Change mkdef.pl to sort symbols that get the same entry number,
3171 and make sure the automatically generated functions ERR_load_*
3172 become part of libeay.num as well.
3175 *) New function SSL_renegotiate_pending(). This returns true once
3176 renegotiation has been requested (either SSL_renegotiate() call
3177 or HelloRequest/ClientHello receveived from the peer) and becomes
3178 false once a handshake has been completed.
3179 (For servers, SSL_renegotiate() followed by SSL_do_handshake()
3180 sends a HelloRequest, but does not ensure that a handshake takes
3181 place. SSL_renegotiate_pending() is useful for checking if the
3182 client has followed the request.)
3185 *) New SSL option SSL_OP_NO_SESSION_RESUMPTION_ON_RENEGOTIATION.
3186 By default, clients may request session resumption even during
3187 renegotiation (if session ID contexts permit); with this option,
3188 session resumption is possible only in the first handshake.
3190 SSL_OP_ALL is now 0x00000FFFL instead of 0x000FFFFFL. This makes
3191 more bits available for options that should not be part of
3192 SSL_OP_ALL (such as SSL_OP_NO_SESSION_RESUMPTION_ON_RENEGOTIATION).
3195 *) Add some demos for certificate and certificate request creation.
3198 *) Make maximum certificate chain size accepted from the peer application
3199 settable (SSL*_get/set_max_cert_list()), as proposed by
3200 "Douglas E. Engert" <deengert@anl.gov>.
3203 *) Add support for shared libraries for Unixware-7
3204 (Boyd Lynn Gerber <gerberb@zenez.com>).
3207 *) Add a "destroy" handler to ENGINEs that allows structural cleanup to
3208 be done prior to destruction. Use this to unload error strings from
3209 ENGINEs that load their own error strings. NB: This adds two new API
3210 functions to "get" and "set" this destroy handler in an ENGINE.
3213 *) Alter all existing ENGINE implementations (except "openssl" and
3214 "openbsd") to dynamically instantiate their own error strings. This
3215 makes them more flexible to be built both as statically-linked ENGINEs
3216 and self-contained shared-libraries loadable via the "dynamic" ENGINE.
3217 Also, add stub code to each that makes building them as self-contained
3218 shared-libraries easier (see README.ENGINE).
3221 *) Add a "dynamic" ENGINE that provides a mechanism for binding ENGINE
3222 implementations into applications that are completely implemented in
3223 self-contained shared-libraries. The "dynamic" ENGINE exposes control
3224 commands that can be used to configure what shared-library to load and
3225 to control aspects of the way it is handled. Also, made an update to
3226 the README.ENGINE file that brings its information up-to-date and
3227 provides some information and instructions on the "dynamic" ENGINE
3228 (ie. how to use it, how to build "dynamic"-loadable ENGINEs, etc).
3231 *) Make it possible to unload ranges of ERR strings with a new
3232 "ERR_unload_strings" function.
3235 *) Add a copy() function to EVP_MD.
3238 *) Make EVP_MD routines take a context pointer instead of just the
3239 md_data void pointer.
3242 *) Add flags to EVP_MD and EVP_MD_CTX. EVP_MD_FLAG_ONESHOT indicates
3243 that the digest can only process a single chunk of data
3244 (typically because it is provided by a piece of
3245 hardware). EVP_MD_CTX_FLAG_ONESHOT indicates that the application
3246 is only going to provide a single chunk of data, and hence the
3247 framework needn't accumulate the data for oneshot drivers.
3250 *) As with "ERR", make it possible to replace the underlying "ex_data"
3251 functions. This change also alters the storage and management of global
3252 ex_data state - it's now all inside ex_data.c and all "class" code (eg.
3253 RSA, BIO, SSL_CTX, etc) no longer stores its own STACKS and per-class
3254 index counters. The API functions that use this state have been changed
3255 to take a "class_index" rather than pointers to the class's local STACK
3256 and counter, and there is now an API function to dynamically create new
3257 classes. This centralisation allows us to (a) plug a lot of the
3258 thread-safety problems that existed, and (b) makes it possible to clean
3259 up all allocated state using "CRYPTO_cleanup_all_ex_data()". W.r.t. (b)
3260 such data would previously have always leaked in application code and
3261 workarounds were in place to make the memory debugging turn a blind eye
3262 to it. Application code that doesn't use this new function will still
3263 leak as before, but their memory debugging output will announce it now
3264 rather than letting it slide.
3266 Besides the addition of CRYPTO_cleanup_all_ex_data(), another API change
3267 induced by the "ex_data" overhaul is that X509_STORE_CTX_init() now
3268 has a return value to indicate success or failure.
3271 *) Make it possible to replace the underlying "ERR" functions such that the
3272 global state (2 LHASH tables and 2 locks) is only used by the "default"
3273 implementation. This change also adds two functions to "get" and "set"
3274 the implementation prior to it being automatically set the first time
3275 any other ERR function takes place. Ie. an application can call "get",
3276 pass the return value to a module it has just loaded, and that module
3277 can call its own "set" function using that value. This means the
3278 module's "ERR" operations will use (and modify) the error state in the
3279 application and not in its own statically linked copy of OpenSSL code.
3282 *) Give DH, DSA, and RSA types their own "**_up_ref()" function to increment
3283 reference counts. This performs normal REF_PRINT/REF_CHECK macros on
3284 the operation, and provides a more encapsulated way for external code
3285 (crypto/evp/ and ssl/) to do this. Also changed the evp and ssl code
3286 to use these functions rather than manually incrementing the counts.
3288 Also rename "DSO_up()" function to more descriptive "DSO_up_ref()".
3291 *) Add EVP test program.
3294 *) Add symmetric cipher support to ENGINE. Expect the API to change!
3297 *) New CRL functions: X509_CRL_set_version(), X509_CRL_set_issuer_name()
3298 X509_CRL_set_lastUpdate(), X509_CRL_set_nextUpdate(), X509_CRL_sort(),
3299 X509_REVOKED_set_serialNumber(), and X509_REVOKED_set_revocationDate().
3300 These allow a CRL to be built without having to access X509_CRL fields
3301 directly. Modify 'ca' application to use new functions.
3304 *) Move SSL_OP_TLS_ROLLBACK_BUG out of the SSL_OP_ALL list of recommended
3305 bug workarounds. Rollback attack detection is a security feature.
3306 The problem will only arise on OpenSSL servers when TLSv1 is not
3307 available (sslv3_server_method() or SSL_OP_NO_TLSv1).
3308 Software authors not wanting to support TLSv1 will have special reasons
3309 for their choice and can explicitly enable this option.
3310 [Bodo Moeller, Lutz Jaenicke]
3312 *) Rationalise EVP so it can be extended: don't include a union of
3313 cipher/digest structures, add init/cleanup functions for EVP_MD_CTX
3314 (similar to those existing for EVP_CIPHER_CTX).
3319 EVP_MD_CTX_init(&md); /* new function call */
3320 EVP_DigestInit(&md, EVP_sha1());
3321 EVP_DigestUpdate(&md, in, len);
3322 EVP_DigestFinal(&md, out, NULL);
3323 EVP_MD_CTX_cleanup(&md); /* new function call */
3327 *) Make DES key schedule conform to the usual scheme, as well as
3328 correcting its structure. This means that calls to DES functions
3329 now have to pass a pointer to a des_key_schedule instead of a
3330 plain des_key_schedule (which was actually always a pointer
3333 des_key_schedule ks;
3335 des_set_key_checked(..., &ks);
3336 des_ncbc_encrypt(..., &ks, ...);
3338 (Note that a later change renames 'des_...' into 'DES_...'.)
3341 *) Initial reduction of linker bloat: the use of some functions, such as
3342 PEM causes large amounts of unused functions to be linked in due to
3343 poor organisation. For example pem_all.c contains every PEM function
3344 which has a knock on effect of linking in large amounts of (unused)
3345 ASN1 code. Grouping together similar functions and splitting unrelated
3346 functions prevents this.
3349 *) Cleanup of EVP macros.
3352 *) Change historical references to {NID,SN,LN}_des_ede and ede3 to add the
3353 correct _ecb suffix.
3356 *) Add initial OCSP responder support to ocsp application. The
3357 revocation information is handled using the text based index
3358 use by the ca application. The responder can either handle
3359 requests generated internally, supplied in files (for example
3360 via a CGI script) or using an internal minimal server.
3363 *) Add configuration choices to get zlib compression for TLS.
3366 *) Changes to Kerberos SSL for RFC 2712 compliance:
3367 1. Implemented real KerberosWrapper, instead of just using
3368 KRB5 AP_REQ message. [Thanks to Simon Wilkinson <sxw@sxw.org.uk>]
3369 2. Implemented optional authenticator field of KerberosWrapper.
3371 Added openssl-style ASN.1 macros for Kerberos ticket, ap_req,
3372 and authenticator structs; see crypto/krb5/.
3374 Generalized Kerberos calls to support multiple Kerberos libraries.
3375 [Vern Staats <staatsvr@asc.hpc.mil>,
3376 Jeffrey Altman <jaltman@columbia.edu>
3377 via Richard Levitte]
3379 *) Cause 'openssl speed' to use fully hard-coded DSA keys as it
3380 already does with RSA. testdsa.h now has 'priv_key/pub_key'
3381 values for each of the key sizes rather than having just
3382 parameters (and 'speed' generating keys each time).
3385 *) Speed up EVP routines.
3388 type 8 bytes 64 bytes 256 bytes 1024 bytes 8192 bytes
3389 des-cbc 4408.85k 5560.51k 5778.46k 5862.20k 5825.16k
3390 des-cbc 4389.55k 5571.17k 5792.23k 5846.91k 5832.11k
3391 des-cbc 4394.32k 5575.92k 5807.44k 5848.37k 5841.30k
3393 des-cbc 3482.66k 5069.49k 5496.39k 5614.16k 5639.28k
3394 des-cbc 3480.74k 5068.76k 5510.34k 5609.87k 5635.52k
3395 des-cbc 3483.72k 5067.62k 5504.60k 5708.01k 5724.80k
3398 des-cbc 4660.16k 5650.19k 5807.19k 5827.13k 5783.32k
3400 des-cbc 3624.96k 5258.21k 5530.91k 5624.30k 5628.26k
3403 *) Added the OS2-EMX target.
3404 ["Brian Havard" <brianh@kheldar.apana.org.au> and Richard Levitte]
3406 *) Rewrite apps to use NCONF routines instead of the old CONF. New functions
3407 to support NCONF routines in extension code. New function CONF_set_nconf()
3408 to allow functions which take an NCONF to also handle the old LHASH
3409 structure: this means that the old CONF compatible routines can be
3410 retained (in particular wrt extensions) without having to duplicate the
3411 code. New function X509V3_add_ext_nconf_sk to add extensions to a stack.
3414 *) Enhance the general user interface with mechanisms for inner control
3415 and with possibilities to have yes/no kind of prompts.
3418 *) Change all calls to low level digest routines in the library and
3419 applications to use EVP. Add missing calls to HMAC_cleanup() and
3420 don't assume HMAC_CTX can be copied using memcpy().
3421 [Verdon Walker <VWalker@novell.com>, Steve Henson]
3423 *) Add the possibility to control engines through control names but with
3424 arbitrary arguments instead of just a string.
3425 Change the key loaders to take a UI_METHOD instead of a callback
3426 function pointer. NOTE: this breaks binary compatibility with earlier
3427 versions of OpenSSL [engine].
3428 Adapt the nCipher code for these new conditions and add a card insertion
3432 *) Enhance the general user interface with mechanisms to better support
3433 dialog box interfaces, application-defined prompts, the possibility
3434 to use defaults (for example default passwords from somewhere else)
3435 and interrupts/cancellations.
3438 *) Tidy up PKCS#12 attribute handling. Add support for the CSP name
3439 attribute in PKCS#12 files, add new -CSP option to pkcs12 utility.
3442 *) Fix a memory leak in 'sk_dup()' in the case reallocation fails. (Also
3443 tidy up some unnecessarily weird code in 'sk_new()').
3444 [Geoff, reported by Diego Tartara <dtartara@novamens.com>]
3446 *) Change the key loading routines for ENGINEs to use the same kind
3447 callback (pem_password_cb) as all other routines that need this
3451 *) Increase ENTROPY_NEEDED to 32 bytes, as Rijndael can operate with
3452 256 bit (=32 byte) keys. Of course seeding with more entropy bytes
3453 than this minimum value is recommended.
3456 *) New random seeder for OpenVMS, using the system process statistics
3457 that are easily reachable.
3460 *) Windows apparently can't transparently handle global
3461 variables defined in DLLs. Initialisations such as:
3463 const ASN1_ITEM *it = &ASN1_INTEGER_it;
3465 wont compile. This is used by the any applications that need to
3466 declare their own ASN1 modules. This was fixed by adding the option
3467 EXPORT_VAR_AS_FN to all Win32 platforms, although this isn't strictly
3468 needed for static libraries under Win32.
3471 *) New functions X509_PURPOSE_set() and X509_TRUST_set() to handle
3472 setting of purpose and trust fields. New X509_STORE trust and
3473 purpose functions and tidy up setting in other SSL functions.
3476 *) Add copies of X509_STORE_CTX fields and callbacks to X509_STORE
3477 structure. These are inherited by X509_STORE_CTX when it is
3478 initialised. This allows various defaults to be set in the
3479 X509_STORE structure (such as flags for CRL checking and custom
3480 purpose or trust settings) for functions which only use X509_STORE_CTX
3481 internally such as S/MIME.
3483 Modify X509_STORE_CTX_purpose_inherit() so it only sets purposes and
3484 trust settings if they are not set in X509_STORE. This allows X509_STORE
3485 purposes and trust (in S/MIME for example) to override any set by default.
3487 Add command line options for CRL checking to smime, s_client and s_server
3491 *) Initial CRL based revocation checking. If the CRL checking flag(s)
3492 are set then the CRL is looked up in the X509_STORE structure and
3493 its validity and signature checked, then if the certificate is found
3494 in the CRL the verify fails with a revoked error.
3496 Various new CRL related callbacks added to X509_STORE_CTX structure.
3498 Command line options added to 'verify' application to support this.
3500 This needs some additional work, such as being able to handle multiple
3501 CRLs with different times, extension based lookup (rather than just
3502 by subject name) and ultimately more complete V2 CRL extension
3506 *) Add a general user interface API (crypto/ui/). This is designed
3507 to replace things like des_read_password and friends (backward
3508 compatibility functions using this new API are provided).
3509 The purpose is to remove prompting functions from the DES code
3510 section as well as provide for prompting through dialog boxes in
3511 a window system and the like.
3514 *) Add "ex_data" support to ENGINE so implementations can add state at a
3515 per-structure level rather than having to store it globally.
3518 *) Make it possible for ENGINE structures to be copied when retrieved by
3519 ENGINE_by_id() if the ENGINE specifies a new flag: ENGINE_FLAGS_BY_ID_COPY.
3520 This causes the "original" ENGINE structure to act like a template,
3521 analogous to the RSA vs. RSA_METHOD type of separation. Because of this
3522 operational state can be localised to each ENGINE structure, despite the
3523 fact they all share the same "methods". New ENGINE structures returned in
3524 this case have no functional references and the return value is the single
3525 structural reference. This matches the single structural reference returned
3526 by ENGINE_by_id() normally, when it is incremented on the pre-existing
3530 *) Fix ASN1 decoder when decoding type ANY and V_ASN1_OTHER: since this
3531 needs to match any other type at all we need to manually clear the
3535 *) Changes to the "openssl engine" utility to include;
3536 - verbosity levels ('-v', '-vv', and '-vvv') that provide information
3537 about an ENGINE's available control commands.
3538 - executing control commands from command line arguments using the
3539 '-pre' and '-post' switches. '-post' is only used if '-t' is
3540 specified and the ENGINE is successfully initialised. The syntax for
3541 the individual commands are colon-separated, for example;
3542 openssl engine chil -pre FORK_CHECK:0 -pre SO_PATH:/lib/test.so
3545 *) New dynamic control command support for ENGINEs. ENGINEs can now
3546 declare their own commands (numbers), names (strings), descriptions,
3547 and input types for run-time discovery by calling applications. A
3548 subset of these commands are implicitly classed as "executable"
3549 depending on their input type, and only these can be invoked through
3550 the new string-based API function ENGINE_ctrl_cmd_string(). (Eg. this
3551 can be based on user input, config files, etc). The distinction is
3552 that "executable" commands cannot return anything other than a boolean
3553 result and can only support numeric or string input, whereas some
3554 discoverable commands may only be for direct use through
3555 ENGINE_ctrl(), eg. supporting the exchange of binary data, function
3556 pointers, or other custom uses. The "executable" commands are to
3557 support parameterisations of ENGINE behaviour that can be
3558 unambiguously defined by ENGINEs and used consistently across any
3559 OpenSSL-based application. Commands have been added to all the
3560 existing hardware-supporting ENGINEs, noticeably "SO_PATH" to allow
3561 control over shared-library paths without source code alterations.
3564 *) Changed all ENGINE implementations to dynamically allocate their
3565 ENGINEs rather than declaring them statically. Apart from this being
3566 necessary with the removal of the ENGINE_FLAGS_MALLOCED distinction,
3567 this also allows the implementations to compile without using the
3568 internal engine_int.h header.
3571 *) Minor adjustment to "rand" code. RAND_get_rand_method() now returns a
3572 'const' value. Any code that should be able to modify a RAND_METHOD
3573 should already have non-const pointers to it (ie. they should only
3574 modify their own ones).
3577 *) Made a variety of little tweaks to the ENGINE code.
3578 - "atalla" and "ubsec" string definitions were moved from header files
3579 to C code. "nuron" string definitions were placed in variables
3580 rather than hard-coded - allowing parameterisation of these values
3581 later on via ctrl() commands.
3582 - Removed unused "#if 0"'d code.
3583 - Fixed engine list iteration code so it uses ENGINE_free() to release
3584 structural references.
3585 - Constified the RAND_METHOD element of ENGINE structures.
3586 - Constified various get/set functions as appropriate and added
3587 missing functions (including a catch-all ENGINE_cpy that duplicates
3588 all ENGINE values onto a new ENGINE except reference counts/state).
3589 - Removed NULL parameter checks in get/set functions. Setting a method
3590 or function to NULL is a way of cancelling out a previously set
3591 value. Passing a NULL ENGINE parameter is just plain stupid anyway
3592 and doesn't justify the extra error symbols and code.
3593 - Deprecate the ENGINE_FLAGS_MALLOCED define and move the area for
3594 flags from engine_int.h to engine.h.
3595 - Changed prototypes for ENGINE handler functions (init(), finish(),
3596 ctrl(), key-load functions, etc) to take an (ENGINE*) parameter.
3599 *) Implement binary inversion algorithm for BN_mod_inverse in addition
3600 to the algorithm using long division. The binary algorithm can be
3601 used only if the modulus is odd. On 32-bit systems, it is faster
3602 only for relatively small moduli (roughly 20-30% for 128-bit moduli,
3603 roughly 5-15% for 256-bit moduli), so we use it only for moduli
3604 up to 450 bits. In 64-bit environments, the binary algorithm
3605 appears to be advantageous for much longer moduli; here we use it
3606 for moduli up to 2048 bits.
3609 *) Rewrite CHOICE field setting in ASN1_item_ex_d2i(). The old code
3610 could not support the combine flag in choice fields.
3613 *) Add a 'copy_extensions' option to the 'ca' utility. This copies
3614 extensions from a certificate request to the certificate.
3617 *) Allow multiple 'certopt' and 'nameopt' options to be separated
3618 by commas. Add 'namopt' and 'certopt' options to the 'ca' config
3619 file: this allows the display of the certificate about to be
3620 signed to be customised, to allow certain fields to be included
3621 or excluded and extension details. The old system didn't display
3622 multicharacter strings properly, omitted fields not in the policy
3623 and couldn't display additional details such as extensions.
3626 *) Function EC_POINTs_mul for multiple scalar multiplication
3627 of an arbitrary number of elliptic curve points
3628 \sum scalars[i]*points[i],
3629 optionally including the generator defined for the EC_GROUP:
3630 scalar*generator + \sum scalars[i]*points[i].
3632 EC_POINT_mul is a simple wrapper function for the typical case
3633 that the point list has just one item (besides the optional
3637 *) First EC_METHODs for curves over GF(p):
3639 EC_GFp_simple_method() uses the basic BN_mod_mul and BN_mod_sqr
3640 operations and provides various method functions that can also
3641 operate with faster implementations of modular arithmetic.
3643 EC_GFp_mont_method() reuses most functions that are part of
3644 EC_GFp_simple_method, but uses Montgomery arithmetic.
3646 [Bodo Moeller; point addition and point doubling
3647 implementation directly derived from source code provided by
3648 Lenka Fibikova <fibikova@exp-math.uni-essen.de>]
3650 *) Framework for elliptic curves (crypto/ec/ec.h, crypto/ec/ec_lcl.h,
3651 crypto/ec/ec_lib.c):
3653 Curves are EC_GROUP objects (with an optional group generator)
3654 based on EC_METHODs that are built into the library.
3656 Points are EC_POINT objects based on EC_GROUP objects.
3658 Most of the framework would be able to handle curves over arbitrary
3659 finite fields, but as there are no obvious types for fields other
3660 than GF(p), some functions are limited to that for now.
3663 *) Add the -HTTP option to s_server. It is similar to -WWW, but requires
3664 that the file contains a complete HTTP response.
3667 *) Add the ec directory to mkdef.pl and mkfiles.pl. In mkdef.pl
3668 change the def and num file printf format specifier from "%-40sXXX"
3669 to "%-39s XXX". The latter will always guarantee a space after the
3670 field while the former will cause them to run together if the field
3671 is 40 of more characters long.
3674 *) Constify the cipher and digest 'method' functions and structures
3675 and modify related functions to take constant EVP_MD and EVP_CIPHER
3679 *) Hide BN_CTX structure details in bn_lcl.h instead of publishing them
3680 in <openssl/bn.h>. Also further increase BN_CTX_NUM to 32.
3683 *) Modify EVP_Digest*() routines so they now return values. Although the
3684 internal software routines can never fail additional hardware versions
3688 *) Clean up crypto/err/err.h and change some error codes to avoid conflicts:
3690 Previously ERR_R_FATAL was too small and coincided with ERR_LIB_PKCS7
3691 (= ERR_R_PKCS7_LIB); it is now 64 instead of 32.
3694 ERR_R_NESTED_ASN1_ERROR
3696 ERR_R_MISSING_ASN1_EOS
3697 were 4 .. 9, conflicting with
3698 ERR_LIB_RSA (= ERR_R_RSA_LIB)
3700 ERR_LIB_PEM (= ERR_R_PEM_LIB).
3701 They are now 58 .. 63 (i.e., just below ERR_R_FATAL).
3703 Add new error code 'ERR_R_INTERNAL_ERROR'.
3706 *) Don't overuse locks in crypto/err/err.c: For data retrieval, CRYPTO_r_lock
3710 *) New option '-subj arg' for 'openssl req' and 'openssl ca'. This
3711 sets the subject name for a new request or supersedes the
3712 subject name in a given request. Formats that can be parsed are
3713 'CN=Some Name, OU=myOU, C=IT'
3715 'CN=Some Name/OU=myOU/C=IT'.
3717 Add options '-batch' and '-verbose' to 'openssl req'.
3718 [Massimiliano Pala <madwolf@hackmasters.net>]
3720 *) Introduce the possibility to access global variables through
3721 functions on platform were that's the best way to handle exporting
3722 global variables in shared libraries. To enable this functionality,
3723 one must configure with "EXPORT_VAR_AS_FN" or defined the C macro
3724 "OPENSSL_EXPORT_VAR_AS_FUNCTION" in crypto/opensslconf.h (the latter
3725 is normally done by Configure or something similar).
3727 To implement a global variable, use the macro OPENSSL_IMPLEMENT_GLOBAL
3728 in the source file (foo.c) like this:
3730 OPENSSL_IMPLEMENT_GLOBAL(int,foo)=1;
3731 OPENSSL_IMPLEMENT_GLOBAL(double,bar);
3733 To declare a global variable, use the macros OPENSSL_DECLARE_GLOBAL
3734 and OPENSSL_GLOBAL_REF in the header file (foo.h) like this:
3736 OPENSSL_DECLARE_GLOBAL(int,foo);
3737 #define foo OPENSSL_GLOBAL_REF(foo)
3738 OPENSSL_DECLARE_GLOBAL(double,bar);
3739 #define bar OPENSSL_GLOBAL_REF(bar)
3741 The #defines are very important, and therefore so is including the
3742 header file everywhere where the defined globals are used.
3744 The macro OPENSSL_EXPORT_VAR_AS_FUNCTION also affects the definition
3745 of ASN.1 items, but that structure is a bit different.
3747 The largest change is in util/mkdef.pl which has been enhanced with
3748 better and easier to understand logic to choose which symbols should
3749 go into the Windows .def files as well as a number of fixes and code
3750 cleanup (among others, algorithm keywords are now sorted
3751 lexicographically to avoid constant rewrites).
3754 *) In BN_div() keep a copy of the sign of 'num' before writing the
3755 result to 'rm' because if rm==num the value will be overwritten
3756 and produce the wrong result if 'num' is negative: this caused
3757 problems with BN_mod() and BN_nnmod().
3760 *) Function OCSP_request_verify(). This checks the signature on an
3761 OCSP request and verifies the signer certificate. The signer
3762 certificate is just checked for a generic purpose and OCSP request
3766 *) Add OCSP_check_validity() function to check the validity of OCSP
3767 responses. OCSP responses are prepared in real time and may only
3768 be a few seconds old. Simply checking that the current time lies
3769 between thisUpdate and nextUpdate max reject otherwise valid responses
3770 caused by either OCSP responder or client clock inaccuracy. Instead
3771 we allow thisUpdate and nextUpdate to fall within a certain period of
3772 the current time. The age of the response can also optionally be
3773 checked. Two new options -validity_period and -status_age added to
3777 *) If signature or public key algorithm is unrecognized print out its
3778 OID rather that just UNKNOWN.
3781 *) Change OCSP_cert_to_id() to tolerate a NULL subject certificate and
3782 OCSP_cert_id_new() a NULL serialNumber. This allows a partial certificate
3783 ID to be generated from the issuer certificate alone which can then be
3784 passed to OCSP_id_issuer_cmp().
3787 *) New compilation option ASN1_ITEM_FUNCTIONS. This causes the new
3788 ASN1 modules to export functions returning ASN1_ITEM pointers
3789 instead of the ASN1_ITEM structures themselves. This adds several
3790 new macros which allow the underlying ASN1 function/structure to
3791 be accessed transparently. As a result code should not use ASN1_ITEM
3792 references directly (such as &X509_it) but instead use the relevant
3793 macros (such as ASN1_ITEM_rptr(X509)). This option is to allow
3794 use of the new ASN1 code on platforms where exporting structures
3795 is problematical (for example in shared libraries) but exporting
3796 functions returning pointers to structures is not.
3799 *) Add support for overriding the generation of SSL/TLS session IDs.
3800 These callbacks can be registered either in an SSL_CTX or per SSL.
3801 The purpose of this is to allow applications to control, if they wish,
3802 the arbitrary values chosen for use as session IDs, particularly as it
3803 can be useful for session caching in multiple-server environments. A
3804 command-line switch for testing this (and any client code that wishes
3805 to use such a feature) has been added to "s_server".
3806 [Geoff Thorpe, Lutz Jaenicke]
3808 *) Modify mkdef.pl to recognise and parse preprocessor conditionals
3809 of the form '#if defined(...) || defined(...) || ...' and
3810 '#if !defined(...) && !defined(...) && ...'. This also avoids
3811 the growing number of special cases it was previously handling.
3814 *) Make all configuration macros available for application by making
3815 sure they are available in opensslconf.h, by giving them names starting
3816 with "OPENSSL_" to avoid conflicts with other packages and by making
3817 sure e_os2.h will cover all platform-specific cases together with
3819 Additionally, it is now possible to define configuration/platform-
3820 specific names (called "system identities"). In the C code, these
3821 are prefixed with "OPENSSL_SYSNAME_". e_os2.h will create another
3822 macro with the name beginning with "OPENSSL_SYS_", which is determined
3823 from "OPENSSL_SYSNAME_*" or compiler-specific macros depending on
3827 *) New option -set_serial to 'req' and 'x509' this allows the serial
3828 number to use to be specified on the command line. Previously self
3829 signed certificates were hard coded with serial number 0 and the
3830 CA options of 'x509' had to use a serial number in a file which was
3834 *) New options to 'ca' utility to support V2 CRL entry extensions.
3835 Currently CRL reason, invalidity date and hold instruction are
3836 supported. Add new CRL extensions to V3 code and some new objects.
3839 *) New function EVP_CIPHER_CTX_set_padding() this is used to
3840 disable standard block padding (aka PKCS#5 padding) in the EVP
3841 API, which was previously mandatory. This means that the data is
3842 not padded in any way and so the total length much be a multiple
3843 of the block size, otherwise an error occurs.
3846 *) Initial (incomplete) OCSP SSL support.
3849 *) New function OCSP_parse_url(). This splits up a URL into its host,
3850 port and path components: primarily to parse OCSP URLs. New -url
3851 option to ocsp utility.
3854 *) New nonce behavior. The return value of OCSP_check_nonce() now
3855 reflects the various checks performed. Applications can decide
3856 whether to tolerate certain situations such as an absent nonce
3857 in a response when one was present in a request: the ocsp application
3858 just prints out a warning. New function OCSP_add1_basic_nonce()
3859 this is to allow responders to include a nonce in a response even if
3860 the request is nonce-less.
3863 *) Disable stdin buffering in load_cert (apps/apps.c) so that no certs are
3864 skipped when using openssl x509 multiple times on a single input file,
3865 e.g. "(openssl x509 -out cert1; openssl x509 -out cert2) <certs".
3868 *) Make ASN1_UTCTIME_set_string() and ASN1_GENERALIZEDTIME_set_string()
3869 set string type: to handle setting ASN1_TIME structures. Fix ca
3870 utility to correctly initialize revocation date of CRLs.
3873 *) New option SSL_OP_CIPHER_SERVER_PREFERENCE allows the server to override
3874 the clients preferred ciphersuites and rather use its own preferences.
3875 Should help to work around M$ SGC (Server Gated Cryptography) bug in
3876 Internet Explorer by ensuring unchanged hash method during stepup.
3877 (Also replaces the broken/deactivated SSL_OP_NON_EXPORT_FIRST option.)
3880 *) Make mkdef.pl recognise all DECLARE_ASN1 macros, change rijndael
3881 to aes and add a new 'exist' option to print out symbols that don't
3885 *) Additional options to ocsp utility to allow flags to be set and
3886 additional certificates supplied.
3889 *) Add the option -VAfile to 'openssl ocsp', so the user can give the
3890 OCSP client a number of certificate to only verify the response
3894 *) Update Rijndael code to version 3.0 and change EVP AES ciphers to
3895 handle the new API. Currently only ECB, CBC modes supported. Add new
3898 Add TLS AES ciphersuites as described in RFC3268, "Advanced
3899 Encryption Standard (AES) Ciphersuites for Transport Layer
3900 Security (TLS)". (In beta versions of OpenSSL 0.9.7, these were
3901 not enabled by default and were not part of the "ALL" ciphersuite
3902 alias because they were not yet official; they could be
3903 explicitly requested by specifying the "AESdraft" ciphersuite
3904 group alias. In the final release of OpenSSL 0.9.7, the group
3905 alias is called "AES" and is part of "ALL".)
3906 [Ben Laurie, Steve Henson, Bodo Moeller]
3908 *) New function OCSP_copy_nonce() to copy nonce value (if present) from
3909 request to response.
3912 *) Functions for OCSP responders. OCSP_request_onereq_count(),
3913 OCSP_request_onereq_get0(), OCSP_onereq_get0_id() and OCSP_id_get0_info()
3914 extract information from a certificate request. OCSP_response_create()
3915 creates a response and optionally adds a basic response structure.
3916 OCSP_basic_add1_status() adds a complete single response to a basic
3917 response and returns the OCSP_SINGLERESP structure just added (to allow
3918 extensions to be included for example). OCSP_basic_add1_cert() adds a
3919 certificate to a basic response and OCSP_basic_sign() signs a basic
3920 response with various flags. New helper functions ASN1_TIME_check()
3921 (checks validity of ASN1_TIME structure) and ASN1_TIME_to_generalizedtime()
3922 (converts ASN1_TIME to GeneralizedTime).
3925 *) Various new functions. EVP_Digest() combines EVP_Digest{Init,Update,Final}()
3926 in a single operation. X509_get0_pubkey_bitstr() extracts the public_key
3927 structure from a certificate. X509_pubkey_digest() digests the public_key
3928 contents: this is used in various key identifiers.
3931 *) Make sk_sort() tolerate a NULL argument.
3932 [Steve Henson reported by Massimiliano Pala <madwolf@comune.modena.it>]
3934 *) New OCSP verify flag OCSP_TRUSTOTHER. When set the "other" certificates
3935 passed by the function are trusted implicitly. If any of them signed the
3936 response then it is assumed to be valid and is not verified.
3939 *) In PKCS7_set_type() initialise content_type in PKCS7_ENC_CONTENT
3940 to data. This was previously part of the PKCS7 ASN1 code. This
3941 was causing problems with OpenSSL created PKCS#12 and PKCS#7 structures.
3942 [Steve Henson, reported by Kenneth R. Robinette
3943 <support@securenetterm.com>]
3945 *) Add CRYPTO_push_info() and CRYPTO_pop_info() calls to new ASN1
3946 routines: without these tracing memory leaks is very painful.
3947 Fix leaks in PKCS12 and PKCS7 routines.
3950 *) Make X509_time_adj() cope with the new behaviour of ASN1_TIME_new().
3951 Previously it initialised the 'type' argument to V_ASN1_UTCTIME which
3952 effectively meant GeneralizedTime would never be used. Now it
3953 is initialised to -1 but X509_time_adj() now has to check the value
3954 and use ASN1_TIME_set() if the value is not V_ASN1_UTCTIME or
3955 V_ASN1_GENERALIZEDTIME, without this it always uses GeneralizedTime.
3956 [Steve Henson, reported by Kenneth R. Robinette
3957 <support@securenetterm.com>]
3959 *) Fixes to BN_to_ASN1_INTEGER when bn is zero. This would previously
3960 result in a zero length in the ASN1_INTEGER structure which was
3961 not consistent with the structure when d2i_ASN1_INTEGER() was used
3962 and would cause ASN1_INTEGER_cmp() to fail. Enhance s2i_ASN1_INTEGER()
3963 to cope with hex and negative integers. Fix bug in i2a_ASN1_INTEGER()
3964 where it did not print out a minus for negative ASN1_INTEGER.
3967 *) Add summary printout to ocsp utility. The various functions which
3968 convert status values to strings have been renamed to:
3969 OCSP_response_status_str(), OCSP_cert_status_str() and
3970 OCSP_crl_reason_str() and are no longer static. New options
3971 to verify nonce values and to disable verification. OCSP response
3972 printout format cleaned up.
3975 *) Add additional OCSP certificate checks. These are those specified
3976 in RFC2560. This consists of two separate checks: the CA of the
3977 certificate being checked must either be the OCSP signer certificate
3978 or the issuer of the OCSP signer certificate. In the latter case the
3979 OCSP signer certificate must contain the OCSP signing extended key
3980 usage. This check is performed by attempting to match the OCSP
3981 signer or the OCSP signer CA to the issuerNameHash and issuerKeyHash
3982 in the OCSP_CERTID structures of the response.
3985 *) Initial OCSP certificate verification added to OCSP_basic_verify()
3986 and related routines. This uses the standard OpenSSL certificate
3987 verify routines to perform initial checks (just CA validity) and
3988 to obtain the certificate chain. Then additional checks will be
3989 performed on the chain. Currently the root CA is checked to see
3990 if it is explicitly trusted for OCSP signing. This is used to set
3991 a root CA as a global signing root: that is any certificate that
3992 chains to that CA is an acceptable OCSP signing certificate.
3995 *) New '-extfile ...' option to 'openssl ca' for reading X.509v3
3996 extensions from a separate configuration file.
3997 As when reading extensions from the main configuration file,
3998 the '-extensions ...' option may be used for specifying the
4000 [Massimiliano Pala <madwolf@comune.modena.it>]
4002 *) New OCSP utility. Allows OCSP requests to be generated or
4003 read. The request can be sent to a responder and the output
4004 parsed, outputed or printed in text form. Not complete yet:
4005 still needs to check the OCSP response validity.
4008 *) New subcommands for 'openssl ca':
4009 'openssl ca -status <serial>' prints the status of the cert with
4010 the given serial number (according to the index file).
4011 'openssl ca -updatedb' updates the expiry status of certificates
4013 [Massimiliano Pala <madwolf@comune.modena.it>]
4015 *) New '-newreq-nodes' command option to CA.pl. This is like
4016 '-newreq', but calls 'openssl req' with the '-nodes' option
4017 so that the resulting key is not encrypted.
4018 [Damien Miller <djm@mindrot.org>]
4020 *) New configuration for the GNU Hurd.
4021 [Jonathan Bartlett <johnnyb@wolfram.com> via Richard Levitte]
4023 *) Initial code to implement OCSP basic response verify. This
4024 is currently incomplete. Currently just finds the signer's
4025 certificate and verifies the signature on the response.
4028 *) New SSLeay_version code SSLEAY_DIR to determine the compiled-in
4029 value of OPENSSLDIR. This is available via the new '-d' option
4030 to 'openssl version', and is also included in 'openssl version -a'.
4033 *) Allowing defining memory allocation callbacks that will be given
4034 file name and line number information in additional arguments
4035 (a const char* and an int). The basic functionality remains, as
4036 well as the original possibility to just replace malloc(),
4037 realloc() and free() by functions that do not know about these
4038 additional arguments. To register and find out the current
4039 settings for extended allocation functions, the following
4040 functions are provided:
4042 CRYPTO_set_mem_ex_functions
4043 CRYPTO_set_locked_mem_ex_functions
4044 CRYPTO_get_mem_ex_functions
4045 CRYPTO_get_locked_mem_ex_functions
4047 These work the same way as CRYPTO_set_mem_functions and friends.
4048 CRYPTO_get_[locked_]mem_functions now writes 0 where such an
4049 extended allocation function is enabled.
4050 Similarly, CRYPTO_get_[locked_]mem_ex_functions writes 0 where
4051 a conventional allocation function is enabled.
4052 [Richard Levitte, Bodo Moeller]
4054 *) Finish off removing the remaining LHASH function pointer casts.
4055 There should no longer be any prototype-casting required when using
4056 the LHASH abstraction, and any casts that remain are "bugs". See
4057 the callback types and macros at the head of lhash.h for details
4058 (and "OBJ_cleanup" in crypto/objects/obj_dat.c as an example).
4061 *) Add automatic query of EGD sockets in RAND_poll() for the unix variant.
4062 If /dev/[u]random devices are not available or do not return enough
4063 entropy, EGD style sockets (served by EGD or PRNGD) will automatically
4065 The locations /var/run/egd-pool, /dev/egd-pool, /etc/egd-pool, and
4066 /etc/entropy will be queried once each in this sequence, quering stops
4067 when enough entropy was collected without querying more sockets.
4070 *) Change the Unix RAND_poll() variant to be able to poll several
4071 random devices, as specified by DEVRANDOM, until a sufficient amount
4072 of data has been collected. We spend at most 10 ms on each file
4073 (select timeout) and read in non-blocking mode. DEVRANDOM now
4074 defaults to the list "/dev/urandom", "/dev/random", "/dev/srandom"
4075 (previously it was just the string "/dev/urandom"), so on typical
4076 platforms the 10 ms delay will never occur.
4077 Also separate out the Unix variant to its own file, rand_unix.c.
4078 For VMS, there's a currently-empty rand_vms.c.
4081 *) Move OCSP client related routines to ocsp_cl.c. These
4082 provide utility functions which an application needing
4083 to issue a request to an OCSP responder and analyse the
4084 response will typically need: as opposed to those which an
4085 OCSP responder itself would need which will be added later.
4087 OCSP_request_sign() signs an OCSP request with an API similar
4088 to PKCS7_sign(). OCSP_response_status() returns status of OCSP
4089 response. OCSP_response_get1_basic() extracts basic response
4090 from response. OCSP_resp_find_status(): finds and extracts status
4091 information from an OCSP_CERTID structure (which will be created
4092 when the request structure is built). These are built from lower
4093 level functions which work on OCSP_SINGLERESP structures but
4094 wont normally be used unless the application wishes to examine
4095 extensions in the OCSP response for example.
4097 Replace nonce routines with a pair of functions.
4098 OCSP_request_add1_nonce() adds a nonce value and optionally
4099 generates a random value. OCSP_check_nonce() checks the
4100 validity of the nonce in an OCSP response.
4103 *) Change function OCSP_request_add() to OCSP_request_add0_id().
4104 This doesn't copy the supplied OCSP_CERTID and avoids the
4105 need to free up the newly created id. Change return type
4106 to OCSP_ONEREQ to return the internal OCSP_ONEREQ structure.
4107 This can then be used to add extensions to the request.
4108 Deleted OCSP_request_new(), since most of its functionality
4109 is now in OCSP_REQUEST_new() (and the case insensitive name
4110 clash) apart from the ability to set the request name which
4111 will be added elsewhere.
4114 *) Update OCSP API. Remove obsolete extensions argument from
4115 various functions. Extensions are now handled using the new
4116 OCSP extension code. New simple OCSP HTTP function which
4117 can be used to send requests and parse the response.
4120 *) Fix the PKCS#7 (S/MIME) code to work with new ASN1. Two new
4121 ASN1_ITEM structures help with sign and verify. PKCS7_ATTR_SIGN
4122 uses the special reorder version of SET OF to sort the attributes
4123 and reorder them to match the encoded order. This resolves a long
4124 standing problem: a verify on a PKCS7 structure just after signing
4125 it used to fail because the attribute order did not match the
4126 encoded order. PKCS7_ATTR_VERIFY does not reorder the attributes:
4127 it uses the received order. This is necessary to tolerate some broken
4128 software that does not order SET OF. This is handled by encoding
4129 as a SEQUENCE OF but using implicit tagging (with UNIVERSAL class)
4130 to produce the required SET OF.
4133 *) Have mk1mf.pl generate the macros OPENSSL_BUILD_SHLIBCRYPTO and
4134 OPENSSL_BUILD_SHLIBSSL and use them appropriately in the header
4135 files to get correct declarations of the ASN.1 item variables.
4138 *) Rewrite of PKCS#12 code to use new ASN1 functionality. Replace many
4139 PKCS#12 macros with real functions. Fix two unrelated ASN1 bugs:
4140 asn1_check_tlen() would sometimes attempt to use 'ctx' when it was
4141 NULL and ASN1_TYPE was not dereferenced properly in asn1_ex_c2i().
4142 New ASN1 macro: DECLARE_ASN1_ITEM() which just declares the relevant
4143 ASN1_ITEM and no wrapper functions.
4146 *) New functions or ASN1_item_d2i_fp() and ASN1_item_d2i_bio(). These
4147 replace the old function pointer based I/O routines. Change most of
4148 the *_d2i_bio() and *_d2i_fp() functions to use these.
4151 *) Enhance mkdef.pl to be more accepting about spacing in C preprocessor
4152 lines, recognice more "algorithms" that can be deselected, and make
4153 it complain about algorithm deselection that isn't recognised.
4156 *) New ASN1 functions to handle dup, sign, verify, digest, pack and
4157 unpack operations in terms of ASN1_ITEM. Modify existing wrappers
4158 to use new functions. Add NO_ASN1_OLD which can be set to remove
4159 some old style ASN1 functions: this can be used to determine if old
4160 code will still work when these eventually go away.
4163 *) New extension functions for OCSP structures, these follow the
4164 same conventions as certificates and CRLs.
4167 *) New function X509V3_add1_i2d(). This automatically encodes and
4168 adds an extension. Its behaviour can be customised with various
4169 flags to append, replace or delete. Various wrappers added for
4170 certifcates and CRLs.
4173 *) Fix to avoid calling the underlying ASN1 print routine when
4174 an extension cannot be parsed. Correct a typo in the
4175 OCSP_SERVICELOC extension. Tidy up print OCSP format.
4178 *) Make mkdef.pl parse some of the ASN1 macros and add apropriate
4179 entries for variables.
4182 *) Add functionality to apps/openssl.c for detecting locking
4183 problems: As the program is single-threaded, all we have
4184 to do is register a locking callback using an array for
4185 storing which locks are currently held by the program.
4188 *) Use a lock around the call to CRYPTO_get_ex_new_index() in
4189 SSL_get_ex_data_X509_STORE_idx(), which is used in
4190 ssl_verify_cert_chain() and thus can be called at any time
4191 during TLS/SSL handshakes so that thread-safety is essential.
4192 Unfortunately, the ex_data design is not at all suited
4193 for multi-threaded use, so it probably should be abolished.
4196 *) Added Broadcom "ubsec" ENGINE to OpenSSL.
4197 [Broadcom, tweaked and integrated by Geoff Thorpe]
4199 *) Move common extension printing code to new function
4200 X509V3_print_extensions(). Reorganise OCSP print routines and
4201 implement some needed OCSP ASN1 functions. Add OCSP extensions.
4204 *) New function X509_signature_print() to remove duplication in some
4208 *) Add a special meaning when SET OF and SEQUENCE OF flags are both
4209 set (this was treated exactly the same as SET OF previously). This
4210 is used to reorder the STACK representing the structure to match the
4211 encoding. This will be used to get round a problem where a PKCS7
4212 structure which was signed could not be verified because the STACK
4213 order did not reflect the encoded order.
4216 *) Reimplement the OCSP ASN1 module using the new code.
4219 *) Update the X509V3 code to permit the use of an ASN1_ITEM structure
4220 for its ASN1 operations. The old style function pointers still exist
4221 for now but they will eventually go away.
4224 *) Merge in replacement ASN1 code from the ASN1 branch. This almost
4225 completely replaces the old ASN1 functionality with a table driven
4226 encoder and decoder which interprets an ASN1_ITEM structure describing
4227 the ASN1 module. Compatibility with the existing ASN1 API (i2d,d2i) is
4228 largely maintained. Almost all of the old asn1_mac.h macro based ASN1
4229 has also been converted to the new form.
4232 *) Change BN_mod_exp_recp so that negative moduli are tolerated
4233 (the sign is ignored). Similarly, ignore the sign in BN_MONT_CTX_set
4234 so that BN_mod_exp_mont and BN_mod_exp_mont_word work
4235 for negative moduli.
4238 *) Fix BN_uadd and BN_usub: Always return non-negative results instead
4239 of not touching the result's sign bit.
4242 *) BN_div bugfix: If the result is 0, the sign (res->neg) must not be
4246 *) Changed the LHASH code to use prototypes for callbacks, and created
4247 macros to declare and implement thin (optionally static) functions
4248 that provide type-safety and avoid function pointer casting for the
4249 type-specific callbacks.
4252 *) Added Kerberos Cipher Suites to be used with TLS, as written in
4254 [Veers Staats <staatsvr@asc.hpc.mil>,
4255 Jeffrey Altman <jaltman@columbia.edu>, via Richard Levitte]
4257 *) Reformat the FAQ so the different questions and answers can be divided
4258 in sections depending on the subject.
4261 *) Have the zlib compression code load ZLIB.DLL dynamically under
4265 *) New function BN_mod_sqrt for computing square roots modulo a prime
4266 (using the probabilistic Tonelli-Shanks algorithm unless
4267 p == 3 (mod 4) or p == 5 (mod 8), which are cases that can
4268 be handled deterministically).
4269 [Lenka Fibikova <fibikova@exp-math.uni-essen.de>, Bodo Moeller]
4271 *) Make BN_mod_inverse faster by explicitly handling small quotients
4272 in the Euclid loop. (Speed gain about 20% for small moduli [256 or
4273 512 bits], about 30% for larger ones [1024 or 2048 bits].)
4276 *) New function BN_kronecker.
4279 *) Fix BN_gcd so that it works on negative inputs; the result is
4280 positive unless both parameters are zero.
4281 Previously something reasonably close to an infinite loop was
4282 possible because numbers could be growing instead of shrinking
4283 in the implementation of Euclid's algorithm.
4286 *) Fix BN_is_word() and BN_is_one() macros to take into account the
4287 sign of the number in question.
4289 Fix BN_is_word(a,w) to work correctly for w == 0.
4291 The old BN_is_word(a,w) macro is now called BN_abs_is_word(a,w)
4292 because its test if the absolute value of 'a' equals 'w'.
4293 Note that BN_abs_is_word does *not* handle w == 0 reliably;
4294 it exists mostly for use in the implementations of BN_is_zero(),
4295 BN_is_one(), and BN_is_word().
4298 *) New function BN_swap.
4301 *) Use BN_nnmod instead of BN_mod in crypto/bn/bn_exp.c so that
4302 the exponentiation functions are more likely to produce reasonable
4303 results on negative inputs.
4306 *) Change BN_mod_mul so that the result is always non-negative.
4307 Previously, it could be negative if one of the factors was negative;
4308 I don't think anyone really wanted that behaviour.
4311 *) Move BN_mod_... functions into new file crypto/bn/bn_mod.c
4312 (except for exponentiation, which stays in crypto/bn/bn_exp.c,
4313 and BN_mod_mul_reciprocal, which stays in crypto/bn/bn_recp.c)
4314 and add new functions:
4323 BN_mod_lshift1_quick
4327 These functions always generate non-negative results.
4329 BN_nnmod otherwise is like BN_mod (if BN_mod computes a remainder r
4330 such that |m| < r < 0, BN_nnmod will output rem + |m| instead).
4332 BN_mod_XXX_quick(r, a, [b,] m) generates the same result as
4333 BN_mod_XXX(r, a, [b,] m, ctx), but requires that a [and b]
4334 be reduced modulo m.
4335 [Lenka Fibikova <fibikova@exp-math.uni-essen.de>, Bodo Moeller]
4338 The following entry accidentily appeared in the CHANGES file
4339 distributed with OpenSSL 0.9.7. The modifications described in
4340 it do *not* apply to OpenSSL 0.9.7.
4342 *) Remove a few calls to bn_wexpand() in BN_sqr() (the one in there
4343 was actually never needed) and in BN_mul(). The removal in BN_mul()
4344 required a small change in bn_mul_part_recursive() and the addition
4345 of the functions bn_cmp_part_words(), bn_sub_part_words() and
4346 bn_add_part_words(), which do the same thing as bn_cmp_words(),
4347 bn_sub_words() and bn_add_words() except they take arrays with
4352 *) In 'openssl passwd', verify passwords read from the terminal
4353 unless the '-salt' option is used (which usually means that
4354 verification would just waste user's time since the resulting
4355 hash is going to be compared with some given password hash)
4356 or the new '-noverify' option is used.
4358 This is an incompatible change, but it does not affect
4359 non-interactive use of 'openssl passwd' (passwords on the command
4360 line, '-stdin' option, '-in ...' option) and thus should not
4364 *) Remove all references to RSAref, since there's no more need for it.
4367 *) Make DSO load along a path given through an environment variable
4368 (SHLIB_PATH) with shl_load().
4371 *) Constify the ENGINE code as a result of BIGNUM constification.
4372 Also constify the RSA code and most things related to it. In a
4373 few places, most notable in the depth of the ASN.1 code, ugly
4374 casts back to non-const were required (to be solved at a later
4378 *) Make it so the openssl application has all engines loaded by default.
4381 *) Constify the BIGNUM routines a little more.
4384 *) Add the following functions:
4386 ENGINE_load_cswift()
4388 ENGINE_load_atalla()
4390 ENGINE_load_builtin_engines()
4392 That way, an application can itself choose if external engines that
4393 are built-in in OpenSSL shall ever be used or not. The benefit is
4394 that applications won't have to be linked with libdl or other dso
4395 libraries unless it's really needed.
4397 Changed 'openssl engine' to load all engines on demand.
4398 Changed the engine header files to avoid the duplication of some
4399 declarations (they differed!).
4402 *) 'openssl engine' can now list capabilities.
4405 *) Better error reporting in 'openssl engine'.
4408 *) Never call load_dh_param(NULL) in s_server.
4411 *) Add engine application. It can currently list engines by name and
4412 identity, and test if they are actually available.
4415 *) Improve RPM specification file by forcing symbolic linking and making
4416 sure the installed documentation is also owned by root.root.
4417 [Damien Miller <djm@mindrot.org>]
4419 *) Give the OpenSSL applications more possibilities to make use of
4420 keys (public as well as private) handled by engines.
4423 *) Add OCSP code that comes from CertCo.
4426 *) Add VMS support for the Rijndael code.
4429 *) Added untested support for Nuron crypto accelerator.
4432 *) Add support for external cryptographic devices. This code was
4433 previously distributed separately as the "engine" branch.
4434 [Geoff Thorpe, Richard Levitte]
4436 *) Rework the filename-translation in the DSO code. It is now possible to
4437 have far greater control over how a "name" is turned into a filename
4438 depending on the operating environment and any oddities about the
4439 different shared library filenames on each system.
4442 *) Support threads on FreeBSD-elf in Configure.
4445 *) Fix for SHA1 assembly problem with MASM: it produces
4446 warnings about corrupt line number information when assembling
4447 with debugging information. This is caused by the overlapping
4449 [Bernd Matthes <mainbug@celocom.de>, Steve Henson]
4452 NCONF_get_number() has no error checking at all. As a replacement,
4453 NCONF_get_number_e() is defined (_e for "error checking") and is
4454 promoted strongly. The old NCONF_get_number is kept around for
4455 binary backward compatibility.
4456 Make it possible for methods to load from something other than a BIO,
4457 by providing a function pointer that is given a name instead of a BIO.
4458 For example, this could be used to load configuration data from an
4462 *) Fix for non blocking accept BIOs. Added new I/O special reason
4463 BIO_RR_ACCEPT to cover this case. Previously use of accept BIOs
4464 with non blocking I/O was not possible because no retry code was
4465 implemented. Also added new SSL code SSL_WANT_ACCEPT to cover
4469 *) Added the beginnings of Rijndael support.
4472 *) Fix for bug in DirectoryString mask setting. Add support for
4473 X509_NAME_print_ex() in 'req' and X509_print_ex() function
4474 to allow certificate printing to more controllable, additional
4475 'certopt' option to 'x509' to allow new printing options to be
4479 *) Clean old EAY MD5 hack from e_os.h.
4482 Changes between 0.9.6l and 0.9.6m [17 Mar 2004]
4484 *) Fix null-pointer assignment in do_change_cipher_spec() revealed
4485 by using the Codenomicon TLS Test Tool (CVE-2004-0079)
4486 [Joe Orton, Steve Henson]
4488 Changes between 0.9.6k and 0.9.6l [04 Nov 2003]
4490 *) Fix additional bug revealed by the NISCC test suite:
4492 Stop bug triggering large recursion when presented with
4493 certain ASN.1 tags (CVE-2003-0851)
4496 Changes between 0.9.6j and 0.9.6k [30 Sep 2003]
4498 *) Fix various bugs revealed by running the NISCC test suite:
4500 Stop out of bounds reads in the ASN1 code when presented with
4501 invalid tags (CVE-2003-0543 and CVE-2003-0544).
4503 If verify callback ignores invalid public key errors don't try to check
4504 certificate signature with the NULL public key.
4508 *) In ssl3_accept() (ssl/s3_srvr.c) only accept a client certificate
4509 if the server requested one: as stated in TLS 1.0 and SSL 3.0
4513 *) In ssl3_get_client_hello() (ssl/s3_srvr.c), tolerate additional
4514 extra data after the compression methods not only for TLS 1.0
4515 but also for SSL 3.0 (as required by the specification).
4516 [Bodo Moeller; problem pointed out by Matthias Loepfe]
4518 *) Change X509_certificate_type() to mark the key as exported/exportable
4519 when it's 512 *bits* long, not 512 bytes.
4522 Changes between 0.9.6i and 0.9.6j [10 Apr 2003]
4524 *) Countermeasure against the Klima-Pokorny-Rosa extension of
4525 Bleichbacher's attack on PKCS #1 v1.5 padding: treat
4526 a protocol version number mismatch like a decryption error
4527 in ssl3_get_client_key_exchange (ssl/s3_srvr.c).
4530 *) Turn on RSA blinding by default in the default implementation
4531 to avoid a timing attack. Applications that don't want it can call
4532 RSA_blinding_off() or use the new flag RSA_FLAG_NO_BLINDING.
4533 They would be ill-advised to do so in most cases.
4534 [Ben Laurie, Steve Henson, Geoff Thorpe, Bodo Moeller]
4536 *) Change RSA blinding code so that it works when the PRNG is not
4537 seeded (in this case, the secret RSA exponent is abused as
4538 an unpredictable seed -- if it is not unpredictable, there
4539 is no point in blinding anyway). Make RSA blinding thread-safe
4540 by remembering the creator's thread ID in rsa->blinding and
4541 having all other threads use local one-time blinding factors
4542 (this requires more computation than sharing rsa->blinding, but
4543 avoids excessive locking; and if an RSA object is not shared
4544 between threads, blinding will still be very fast).
4547 Changes between 0.9.6h and 0.9.6i [19 Feb 2003]
4549 *) In ssl3_get_record (ssl/s3_pkt.c), minimize information leaked
4550 via timing by performing a MAC computation even if incorrrect
4551 block cipher padding has been found. This is a countermeasure
4552 against active attacks where the attacker has to distinguish
4553 between bad padding and a MAC verification error. (CVE-2003-0078)
4555 [Bodo Moeller; problem pointed out by Brice Canvel (EPFL),
4556 Alain Hiltgen (UBS), Serge Vaudenay (EPFL), and
4557 Martin Vuagnoux (EPFL, Ilion)]
4559 Changes between 0.9.6g and 0.9.6h [5 Dec 2002]
4561 *) New function OPENSSL_cleanse(), which is used to cleanse a section of
4562 memory from it's contents. This is done with a counter that will
4563 place alternating values in each byte. This can be used to solve
4564 two issues: 1) the removal of calls to memset() by highly optimizing
4565 compilers, and 2) cleansing with other values than 0, since those can
4566 be read through on certain media, for example a swap space on disk.
4569 *) Bugfix: client side session caching did not work with external caching,
4570 because the session->cipher setting was not restored when reloading
4571 from the external cache. This problem was masked, when
4572 SSL_OP_NETSCAPE_REUSE_CIPHER_CHANGE_BUG (part of SSL_OP_ALL) was set.
4573 (Found by Steve Haslam <steve@araqnid.ddts.net>.)
4576 *) Fix client_certificate (ssl/s2_clnt.c): The permissible total
4577 length of the REQUEST-CERTIFICATE message is 18 .. 34, not 17 .. 33.
4578 [Zeev Lieber <zeev-l@yahoo.com>]
4580 *) Undo an undocumented change introduced in 0.9.6e which caused
4581 repeated calls to OpenSSL_add_all_ciphers() and
4582 OpenSSL_add_all_digests() to be ignored, even after calling
4586 *) Change the default configuration reader to deal with last line not
4587 being properly terminated.
4590 *) Change X509_NAME_cmp() so it applies the special rules on handling
4591 DN values that are of type PrintableString, as well as RDNs of type
4592 emailAddress where the value has the type ia5String.
4593 [stefank@valicert.com via Richard Levitte]
4595 *) Add a SSL_SESS_CACHE_NO_INTERNAL_STORE flag to take over half
4596 the job SSL_SESS_CACHE_NO_INTERNAL_LOOKUP was inconsistently
4597 doing, define a new flag (SSL_SESS_CACHE_NO_INTERNAL) to be
4598 the bitwise-OR of the two for use by the majority of applications
4599 wanting this behaviour, and update the docs. The documented
4600 behaviour and actual behaviour were inconsistent and had been
4601 changing anyway, so this is more a bug-fix than a behavioural
4603 [Geoff Thorpe, diagnosed by Nadav Har'El]
4605 *) Don't impose a 16-byte length minimum on session IDs in ssl/s3_clnt.c
4606 (the SSL 3.0 and TLS 1.0 specifications allow any length up to 32 bytes).
4609 *) Fix initialization code race conditions in
4610 SSLv23_method(), SSLv23_client_method(), SSLv23_server_method(),
4611 SSLv2_method(), SSLv2_client_method(), SSLv2_server_method(),
4612 SSLv3_method(), SSLv3_client_method(), SSLv3_server_method(),
4613 TLSv1_method(), TLSv1_client_method(), TLSv1_server_method(),
4614 ssl2_get_cipher_by_char(),
4615 ssl3_get_cipher_by_char().
4616 [Patrick McCormick <patrick@tellme.com>, Bodo Moeller]
4618 *) Reorder cleanup sequence in SSL_CTX_free(): only remove the ex_data after
4619 the cached sessions are flushed, as the remove_cb() might use ex_data
4620 contents. Bug found by Sam Varshavchik <mrsam@courier-mta.com>
4621 (see [openssl.org #212]).
4622 [Geoff Thorpe, Lutz Jaenicke]
4624 *) Fix typo in OBJ_txt2obj which incorrectly passed the content
4625 length, instead of the encoding length to d2i_ASN1_OBJECT.
4628 Changes between 0.9.6f and 0.9.6g [9 Aug 2002]
4630 *) [In 0.9.6g-engine release:]
4631 Fix crypto/engine/vendor_defns/cswift.h for WIN32 (use '_stdcall').
4632 [Lynn Gazis <lgazis@rainbow.com>]
4634 Changes between 0.9.6e and 0.9.6f [8 Aug 2002]
4636 *) Fix ASN1 checks. Check for overflow by comparing with LONG_MAX
4637 and get fix the header length calculation.
4638 [Florian Weimer <Weimer@CERT.Uni-Stuttgart.DE>,
4639 Alon Kantor <alonk@checkpoint.com> (and others),
4642 *) Use proper error handling instead of 'assertions' in buffer
4643 overflow checks added in 0.9.6e. This prevents DoS (the
4644 assertions could call abort()).
4645 [Arne Ansper <arne@ats.cyber.ee>, Bodo Moeller]
4647 Changes between 0.9.6d and 0.9.6e [30 Jul 2002]
4649 *) Add various sanity checks to asn1_get_length() to reject
4650 the ASN1 length bytes if they exceed sizeof(long), will appear
4651 negative or the content length exceeds the length of the
4653 [Steve Henson, Adi Stav <stav@mercury.co.il>, James Yonan <jim@ntlp.com>]
4655 *) Fix cipher selection routines: ciphers without encryption had no flags
4656 for the cipher strength set and where therefore not handled correctly
4657 by the selection routines (PR #130).
4660 *) Fix EVP_dsa_sha macro.
4664 SSL_OP_DONT_INSERT_EMPTY_FRAGMENTS
4665 for disabling the SSL 3.0/TLS 1.0 CBC vulnerability countermeasure
4666 that was added in OpenSSL 0.9.6d.
4668 As the countermeasure turned out to be incompatible with some
4669 broken SSL implementations, the new option is part of SSL_OP_ALL.
4670 SSL_OP_ALL is usually employed when compatibility with weird SSL
4671 implementations is desired (e.g. '-bugs' option to 's_client' and
4672 's_server'), so the new option is automatically set in many
4676 *) Changes in security patch:
4678 Changes marked "(CHATS)" were sponsored by the Defense Advanced
4679 Research Projects Agency (DARPA) and Air Force Research Laboratory,
4680 Air Force Materiel Command, USAF, under agreement number
4683 *) Add various sanity checks to asn1_get_length() to reject
4684 the ASN1 length bytes if they exceed sizeof(long), will appear
4685 negative or the content length exceeds the length of the
4686 supplied buffer. (CVE-2002-0659)
4687 [Steve Henson, Adi Stav <stav@mercury.co.il>, James Yonan <jim@ntlp.com>]
4689 *) Assertions for various potential buffer overflows, not known to
4691 [Ben Laurie (CHATS)]
4693 *) Various temporary buffers to hold ASCII versions of integers were
4694 too small for 64 bit platforms. (CVE-2002-0655)
4695 [Matthew Byng-Maddick <mbm@aldigital.co.uk> and Ben Laurie (CHATS)>
4697 *) Remote buffer overflow in SSL3 protocol - an attacker could
4698 supply an oversized session ID to a client. (CVE-2002-0656)
4699 [Ben Laurie (CHATS)]
4701 *) Remote buffer overflow in SSL2 protocol - an attacker could
4702 supply an oversized client master key. (CVE-2002-0656)
4703 [Ben Laurie (CHATS)]
4705 Changes between 0.9.6c and 0.9.6d [9 May 2002]
4707 *) Fix crypto/asn1/a_sign.c so that 'parameters' is omitted (not
4708 encoded as NULL) with id-dsa-with-sha1.
4709 [Nils Larsch <nla@trustcenter.de>; problem pointed out by Bodo Moeller]
4711 *) Check various X509_...() return values in apps/req.c.
4712 [Nils Larsch <nla@trustcenter.de>]
4714 *) Fix BASE64 decode (EVP_DecodeUpdate) for data with CR/LF ended lines:
4715 an end-of-file condition would erronously be flagged, when the CRLF
4716 was just at the end of a processed block. The bug was discovered when
4717 processing data through a buffering memory BIO handing the data to a
4718 BASE64-decoding BIO. Bug fund and patch submitted by Pavel Tsekov
4719 <ptsekov@syntrex.com> and Nedelcho Stanev.
4722 *) Implement a countermeasure against a vulnerability recently found
4723 in CBC ciphersuites in SSL 3.0/TLS 1.0: Send an empty fragment
4724 before application data chunks to avoid the use of known IVs
4725 with data potentially chosen by the attacker.
4728 *) Fix length checks in ssl3_get_client_hello().
4731 *) TLS/SSL library bugfix: use s->s3->in_read_app_data differently
4732 to prevent ssl3_read_internal() from incorrectly assuming that
4733 ssl3_read_bytes() found application data while handshake
4734 processing was enabled when in fact s->s3->in_read_app_data was
4735 merely automatically cleared during the initial handshake.
4736 [Bodo Moeller; problem pointed out by Arne Ansper <arne@ats.cyber.ee>]
4738 *) Fix object definitions for Private and Enterprise: they were not
4739 recognized in their shortname (=lowercase) representation. Extend
4740 obj_dat.pl to issue an error when using undefined keywords instead
4741 of silently ignoring the problem (Svenning Sorensen
4742 <sss@sss.dnsalias.net>).
4745 *) Fix DH_generate_parameters() so that it works for 'non-standard'
4746 generators, i.e. generators other than 2 and 5. (Previously, the
4747 code did not properly initialise the 'add' and 'rem' values to
4748 BN_generate_prime().)
4750 In the new general case, we do not insist that 'generator' is
4751 actually a primitive root: This requirement is rather pointless;
4752 a generator of the order-q subgroup is just as good, if not
4756 *) Map new X509 verification errors to alerts. Discovered and submitted by
4757 Tom Wu <tom@arcot.com>.
4760 *) Fix ssl3_pending() (ssl/s3_lib.c) to prevent SSL_pending() from
4761 returning non-zero before the data has been completely received
4762 when using non-blocking I/O.
4763 [Bodo Moeller; problem pointed out by John Hughes]
4765 *) Some of the ciphers missed the strength entry (SSL_LOW etc).
4766 [Ben Laurie, Lutz Jaenicke]
4768 *) Fix bug in SSL_clear(): bad sessions were not removed (found by
4769 Yoram Zahavi <YoramZ@gilian.com>).
4772 *) Add information about CygWin 1.3 and on, and preserve proper
4773 configuration for the versions before that.
4774 [Corinna Vinschen <vinschen@redhat.com> and Richard Levitte]
4776 *) Make removal from session cache (SSL_CTX_remove_session()) more robust:
4777 check whether we deal with a copy of a session and do not delete from
4778 the cache in this case. Problem reported by "Izhar Shoshani Levi"
4779 <izhar@checkpoint.com>.
4782 *) Do not store session data into the internal session cache, if it
4783 is never intended to be looked up (SSL_SESS_CACHE_NO_INTERNAL_LOOKUP
4784 flag is set). Proposed by Aslam <aslam@funk.com>.
4787 *) Have ASN1_BIT_STRING_set_bit() really clear a bit when the requested
4791 *) [In 0.9.6d-engine release:]
4792 Fix a crashbug and a logic bug in hwcrhk_load_pubkey().
4793 [Toomas Kiisk <vix@cyber.ee> via Richard Levitte]
4795 *) Add the configuration target linux-s390x.
4796 [Neale Ferguson <Neale.Ferguson@SoftwareAG-USA.com> via Richard Levitte]
4798 *) The earlier bugfix for the SSL3_ST_SW_HELLO_REQ_C case of
4799 ssl3_accept (ssl/s3_srvr.c) incorrectly used a local flag
4800 variable as an indication that a ClientHello message has been
4801 received. As the flag value will be lost between multiple
4802 invocations of ssl3_accept when using non-blocking I/O, the
4803 function may not be aware that a handshake has actually taken
4804 place, thus preventing a new session from being added to the
4807 To avoid this problem, we now set s->new_session to 2 instead of
4808 using a local variable.
4809 [Lutz Jaenicke, Bodo Moeller]
4811 *) Bugfix: Return -1 from ssl3_get_server_done (ssl3/s3_clnt.c)
4812 if the SSL_R_LENGTH_MISMATCH error is detected.
4813 [Geoff Thorpe, Bodo Moeller]
4815 *) New 'shared_ldflag' column in Configure platform table.
4818 *) Fix EVP_CIPHER_mode macro.
4819 ["Dan S. Camper" <dan@bti.net>]
4821 *) Fix ssl3_read_bytes (ssl/s3_pkt.c): To ignore messages of unknown
4822 type, we must throw them away by setting rr->length to 0.
4823 [D P Chang <dpc@qualys.com>]
4825 Changes between 0.9.6b and 0.9.6c [21 dec 2001]
4827 *) Fix BN_rand_range bug pointed out by Dominikus Scherkl
4828 <Dominikus.Scherkl@biodata.com>. (The previous implementation
4829 worked incorrectly for those cases where range = 10..._2 and
4830 3*range is two bits longer than range.)
4833 *) Only add signing time to PKCS7 structures if it is not already
4837 *) Fix crypto/objects/objects.h: "ld-ce" should be "id-ce",
4838 OBJ_ld_ce should be OBJ_id_ce.
4839 Also some ip-pda OIDs in crypto/objects/objects.txt were
4840 incorrect (cf. RFC 3039).
4841 [Matt Cooper, Frederic Giudicelli, Bodo Moeller]
4843 *) Release CRYPTO_LOCK_DYNLOCK when CRYPTO_destroy_dynlockid()
4844 returns early because it has nothing to do.
4845 [Andy Schneider <andy.schneider@bjss.co.uk>]
4847 *) [In 0.9.6c-engine release:]
4848 Fix mutex callback return values in crypto/engine/hw_ncipher.c.
4849 [Andy Schneider <andy.schneider@bjss.co.uk>]
4851 *) [In 0.9.6c-engine release:]
4852 Add support for Cryptographic Appliance's keyserver technology.
4853 (Use engine 'keyclient')
4854 [Cryptographic Appliances and Geoff Thorpe]
4856 *) Add a configuration entry for OS/390 Unix. The C compiler 'c89'
4857 is called via tools/c89.sh because arguments have to be
4858 rearranged (all '-L' options must appear before the first object
4860 [Richard Shapiro <rshapiro@abinitio.com>]
4862 *) [In 0.9.6c-engine release:]
4863 Add support for Broadcom crypto accelerator cards, backported
4865 [Broadcom, Nalin Dahyabhai <nalin@redhat.com>, Mark Cox]
4867 *) [In 0.9.6c-engine release:]
4868 Add support for SureWare crypto accelerator cards from
4869 Baltimore Technologies. (Use engine 'sureware')
4870 [Baltimore Technologies and Mark Cox]
4872 *) [In 0.9.6c-engine release:]
4873 Add support for crypto accelerator cards from Accelerated
4874 Encryption Processing, www.aep.ie. (Use engine 'aep')
4875 [AEP Inc. and Mark Cox]
4877 *) Add a configuration entry for gcc on UnixWare.
4878 [Gary Benson <gbenson@redhat.com>]
4880 *) Change ssl/s2_clnt.c and ssl/s2_srvr.c so that received handshake
4881 messages are stored in a single piece (fixed-length part and
4882 variable-length part combined) and fix various bugs found on the way.
4885 *) Disable caching in BIO_gethostbyname(), directly use gethostbyname()
4886 instead. BIO_gethostbyname() does not know what timeouts are
4887 appropriate, so entries would stay in cache even when they have
4889 [Bodo Moeller; problem pointed out by Rich Salz <rsalz@zolera.com>
4891 *) Change ssl23_get_client_hello (ssl/s23_srvr.c) behaviour when
4892 faced with a pathologically small ClientHello fragment that does
4893 not contain client_version: Instead of aborting with an error,
4894 simply choose the highest available protocol version (i.e.,
4895 TLS 1.0 unless it is disabled). In practice, ClientHello
4896 messages are never sent like this, but this change gives us
4897 strictly correct behaviour at least for TLS.
4900 *) Fix SSL handshake functions and SSL_clear() such that SSL_clear()
4901 never resets s->method to s->ctx->method when called from within
4902 one of the SSL handshake functions.
4903 [Bodo Moeller; problem pointed out by Niko Baric]
4905 *) In ssl3_get_client_hello (ssl/s3_srvr.c), generate a fatal alert
4906 (sent using the client's version number) if client_version is
4907 smaller than the protocol version in use. Also change
4908 ssl23_get_client_hello (ssl/s23_srvr.c) to select TLS 1.0 if
4909 the client demanded SSL 3.0 but only TLS 1.0 is enabled; then
4910 the client will at least see that alert.
4913 *) Fix ssl3_get_message (ssl/s3_both.c) to handle message fragmentation
4917 *) Avoid infinite loop in ssl3_get_message (ssl/s3_both.c) if a
4918 client receives HelloRequest while in a handshake.
4919 [Bodo Moeller; bug noticed by Andy Schneider <andy.schneider@bjss.co.uk>]
4921 *) Bugfix in ssl3_accept (ssl/s3_srvr.c): Case SSL3_ST_SW_HELLO_REQ_C
4922 should end in 'break', not 'goto end' which circuments various
4923 cleanups done in state SSL_ST_OK. But session related stuff
4924 must be disabled for SSL_ST_OK in the case that we just sent a
4927 Also avoid some overhead by not calling ssl_init_wbio_buffer()
4928 before just sending a HelloRequest.
4929 [Bodo Moeller, Eric Rescorla <ekr@rtfm.com>]
4931 *) Fix ssl/s3_enc.c, ssl/t1_enc.c and ssl/s3_pkt.c so that we don't
4932 reveal whether illegal block cipher padding was found or a MAC
4933 verification error occured. (Neither SSLerr() codes nor alerts
4934 are directly visible to potential attackers, but the information
4935 may leak via logfiles.)
4937 Similar changes are not required for the SSL 2.0 implementation
4938 because the number of padding bytes is sent in clear for SSL 2.0,
4939 and the extra bytes are just ignored. However ssl/s2_pkt.c
4940 failed to verify that the purported number of padding bytes is in
4944 *) Add OpenUNIX-8 support including shared libraries
4945 (Boyd Lynn Gerber <gerberb@zenez.com>).
4948 *) Improve RSA_padding_check_PKCS1_OAEP() check again to avoid
4949 'wristwatch attack' using huge encoding parameters (cf.
4950 James H. Manger's CRYPTO 2001 paper). Note that the
4951 RSA_PKCS1_OAEP_PADDING case of RSA_private_decrypt() does not use
4952 encoding parameters and hence was not vulnerable.
4955 *) BN_sqr() bug fix.
4956 [Ulf Möller, reported by Jim Ellis <jim.ellis@cavium.com>]
4958 *) Rabin-Miller test analyses assume uniformly distributed witnesses,
4959 so use BN_pseudo_rand_range() instead of using BN_pseudo_rand()
4960 followed by modular reduction.
4961 [Bodo Moeller; pointed out by Adam Young <AYoung1@NCSUS.JNJ.COM>]
4963 *) Add BN_pseudo_rand_range() with obvious functionality: BN_rand_range()
4964 equivalent based on BN_pseudo_rand() instead of BN_rand().
4967 *) s3_srvr.c: allow sending of large client certificate lists (> 16 kB).
4968 This function was broken, as the check for a new client hello message
4969 to handle SGC did not allow these large messages.
4970 (Tracked down by "Douglas E. Engert" <deengert@anl.gov>.)
4973 *) Add alert descriptions for TLSv1 to SSL_alert_desc_string[_long]().
4976 *) Fix buggy behaviour of BIO_get_num_renegotiates() and BIO_ctrl()
4977 for BIO_C_GET_WRITE_BUF_SIZE ("Stephen Hinton" <shinton@netopia.com>).
4980 *) Rework the configuration and shared library support for Tru64 Unix.
4981 The configuration part makes use of modern compiler features and
4982 still retains old compiler behavior for those that run older versions
4983 of the OS. The shared library support part includes a variant that
4984 uses the RPATH feature, and is available through the special
4985 configuration target "alpha-cc-rpath", which will never be selected
4987 [Tim Mooney <mooney@dogbert.cc.ndsu.NoDak.edu> via Richard Levitte]
4989 *) In ssl3_get_key_exchange (ssl/s3_clnt.c), call ssl3_get_message()
4990 with the same message size as in ssl3_get_certificate_request().
4991 Otherwise, if no ServerKeyExchange message occurs, CertificateRequest
4992 messages might inadvertently be reject as too long.
4993 [Petr Lampa <lampa@fee.vutbr.cz>]
4995 *) Enhanced support for IA-64 Unix platforms (well, Linux and HP-UX).
4998 *) Modified SSL library such that the verify_callback that has been set
4999 specificly for an SSL object with SSL_set_verify() is actually being
5000 used. Before the change, a verify_callback set with this function was
5001 ignored and the verify_callback() set in the SSL_CTX at the time of
5002 the call was used. New function X509_STORE_CTX_set_verify_cb() introduced
5003 to allow the necessary settings.
5006 *) Initialize static variable in crypto/dsa/dsa_lib.c and crypto/dh/dh_lib.c
5007 explicitly to NULL, as at least on Solaris 8 this seems not always to be
5008 done automatically (in contradiction to the requirements of the C
5009 standard). This made problems when used from OpenSSH.
5012 *) In OpenSSL 0.9.6a and 0.9.6b, crypto/dh/dh_key.c ignored
5013 dh->length and always used
5015 BN_rand_range(priv_key, dh->p).
5017 BN_rand_range() is not necessary for Diffie-Hellman, and this
5018 specific range makes Diffie-Hellman unnecessarily inefficient if
5019 dh->length (recommended exponent length) is much smaller than the
5020 length of dh->p. We could use BN_rand_range() if the order of
5021 the subgroup was stored in the DH structure, but we only have
5026 BN_rand(priv_key, l, ...)
5028 where 'l' is dh->length if this is defined, or BN_num_bits(dh->p)-1
5034 RSA_eay_public_encrypt
5035 RSA_eay_private_decrypt
5036 RSA_eay_private_encrypt (signing)
5037 RSA_eay_public_decrypt (signature verification)
5039 (default implementations for RSA_public_encrypt,
5040 RSA_private_decrypt, RSA_private_encrypt, RSA_public_decrypt),
5041 always reject numbers >= n.
5044 *) In crypto/rand/md_rand.c, use a new short-time lock CRYPTO_LOCK_RAND2
5045 to synchronize access to 'locking_thread'. This is necessary on
5046 systems where access to 'locking_thread' (an 'unsigned long'
5047 variable) is not atomic.
5050 *) In crypto/rand/md_rand.c, set 'locking_thread' to current thread's ID
5051 *before* setting the 'crypto_lock_rand' flag. The previous code had
5052 a race condition if 0 is a valid thread ID.
5053 [Travis Vitek <vitek@roguewave.com>]
5055 *) Add support for shared libraries under Irix.
5056 [Albert Chin-A-Young <china@thewrittenword.com>]
5058 *) Add configuration option to build on Linux on both big-endian and
5060 [Ralf Baechle <ralf@uni-koblenz.de>]
5062 *) Add the possibility to create shared libraries on HP-UX.
5065 Changes between 0.9.6a and 0.9.6b [9 Jul 2001]
5067 *) Change ssleay_rand_bytes (crypto/rand/md_rand.c)
5068 to avoid a SSLeay/OpenSSL PRNG weakness pointed out by
5069 Markku-Juhani O. Saarinen <markku-juhani.saarinen@nokia.com>:
5070 PRNG state recovery was possible based on the output of
5071 one PRNG request appropriately sized to gain knowledge on
5072 'md' followed by enough consecutive 1-byte PRNG requests
5073 to traverse all of 'state'.
5075 1. When updating 'md_local' (the current thread's copy of 'md')
5076 during PRNG output generation, hash all of the previous
5077 'md_local' value, not just the half used for PRNG output.
5079 2. Make the number of bytes from 'state' included into the hash
5080 independent from the number of PRNG bytes requested.
5082 The first measure alone would be sufficient to avoid
5083 Markku-Juhani's attack. (Actually it had never occurred
5084 to me that the half of 'md_local' used for chaining was the
5085 half from which PRNG output bytes were taken -- I had always
5086 assumed that the secret half would be used.) The second
5087 measure makes sure that additional data from 'state' is never
5088 mixed into 'md_local' in small portions; this heuristically
5089 further strengthens the PRNG.
5092 *) Fix crypto/bn/asm/mips3.s.
5095 *) When only the key is given to "enc", the IV is undefined. Print out
5096 an error message in this case.
5099 *) Handle special case when X509_NAME is empty in X509 printing routines.
5102 *) In dsa_do_verify (crypto/dsa/dsa_ossl.c), verify that r and s are
5103 positive and less than q.
5106 *) Don't change *pointer in CRYPTO_add_lock() is add_lock_callback is
5107 used: it isn't thread safe and the add_lock_callback should handle
5109 [Paul Rose <Paul.Rose@bridge.com>]
5111 *) Verify that incoming data obeys the block size in
5112 ssl3_enc (ssl/s3_enc.c) and tls1_enc (ssl/t1_enc.c).
5116 [Ulf Möller, Bodo Möller]
5118 *) The countermeasure against Bleichbacher's attack on PKCS #1 v1.5
5119 RSA encryption was accidentally removed in s3_srvr.c in OpenSSL 0.9.5
5120 when fixing the server behaviour for backwards-compatible 'client
5121 hello' messages. (Note that the attack is impractical against
5122 SSL 3.0 and TLS 1.0 anyway because length and version checking
5123 means that the probability of guessing a valid ciphertext is
5124 around 2^-40; see section 5 in Bleichenbacher's CRYPTO '98
5127 Before 0.9.5, the countermeasure (hide the error by generating a
5128 random 'decryption result') did not work properly because
5129 ERR_clear_error() was missing, meaning that SSL_get_error() would
5130 detect the supposedly ignored error.
5132 Both problems are now fixed.
5135 *) In crypto/bio/bf_buff.c, increase DEFAULT_BUFFER_SIZE to 4096
5136 (previously it was 1024).
5139 *) Fix for compatibility mode trust settings: ignore trust settings
5140 unless some valid trust or reject settings are present.
5143 *) Fix for blowfish EVP: its a variable length cipher.
5146 *) Fix various bugs related to DSA S/MIME verification. Handle missing
5147 parameters in DSA public key structures and return an error in the
5148 DSA routines if parameters are absent.
5151 *) In versions up to 0.9.6, RAND_file_name() resorted to file ".rnd"
5152 in the current directory if neither $RANDFILE nor $HOME was set.
5153 RAND_file_name() in 0.9.6a returned NULL in this case. This has
5154 caused some confusion to Windows users who haven't defined $HOME.
5155 Thus RAND_file_name() is changed again: e_os.h can define a
5156 DEFAULT_HOME, which will be used if $HOME is not set.
5157 For Windows, we use "C:"; on other platforms, we still require
5158 environment variables.
5160 *) Move 'if (!initialized) RAND_poll()' into regions protected by
5161 CRYPTO_LOCK_RAND. This is not strictly necessary, but avoids
5162 having multiple threads call RAND_poll() concurrently.
5165 *) In crypto/rand/md_rand.c, replace 'add_do_not_lock' flag by a
5166 combination of a flag and a thread ID variable.
5167 Otherwise while one thread is in ssleay_rand_bytes (which sets the
5168 flag), *other* threads can enter ssleay_add_bytes without obeying
5169 the CRYPTO_LOCK_RAND lock (and may even illegally release the lock
5170 that they do not hold after the first thread unsets add_do_not_lock).
5173 *) Change bctest again: '-x' expressions are not available in all
5177 Changes between 0.9.6 and 0.9.6a [5 Apr 2001]
5179 *) Fix a couple of memory leaks in PKCS7_dataDecode()
5180 [Steve Henson, reported by Heyun Zheng <hzheng@atdsprint.com>]
5182 *) Change Configure and Makefiles to provide EXE_EXT, which will contain
5183 the default extension for executables, if any. Also, make the perl
5184 scripts that use symlink() to test if it really exists and use "cp"
5185 if it doesn't. All this made OpenSSL compilable and installable in
5189 *) Fix for asn1_GetSequence() for indefinite length constructed data.
5190 If SEQUENCE is length is indefinite just set c->slen to the total
5191 amount of data available.
5192 [Steve Henson, reported by shige@FreeBSD.org]
5193 [This change does not apply to 0.9.7.]
5195 *) Change bctest to avoid here-documents inside command substitution
5196 (workaround for FreeBSD /bin/sh bug).
5197 For compatibility with Ultrix, avoid shell functions (introduced
5198 in the bctest version that searches along $PATH).
5201 *) Rename 'des_encrypt' to 'des_encrypt1'. This avoids the clashes
5202 with des_encrypt() defined on some operating systems, like Solaris
5206 *) Check the result of RSA-CRT (see D. Boneh, R. DeMillo, R. Lipton:
5207 On the Importance of Eliminating Errors in Cryptographic
5208 Computations, J. Cryptology 14 (2001) 2, 101-119,
5209 http://theory.stanford.edu/~dabo/papers/faults.ps.gz).
5212 *) MIPS assembler BIGNUM division bug fix.
5215 *) Disabled incorrect Alpha assembler code.
5218 *) Fix PKCS#7 decode routines so they correctly update the length
5219 after reading an EOC for the EXPLICIT tag.
5221 [This change does not apply to 0.9.7.]
5223 *) Fix bug in PKCS#12 key generation routines. This was triggered
5224 if a 3DES key was generated with a 0 initial byte. Include
5225 PKCS12_BROKEN_KEYGEN compilation option to retain the old
5226 (but broken) behaviour.
5229 *) Enhance bctest to search for a working bc along $PATH and print
5231 [Tim Rice <tim@multitalents.net> via Richard Levitte]
5233 *) Fix memory leaks in err.c: free err_data string if necessary;
5234 don't write to the wrong index in ERR_set_error_data.
5237 *) Implement ssl23_peek (analogous to ssl23_read), which previously
5241 *) Replace rdtsc with _emit statements for VC++ version 5.
5242 [Jeremy Cooper <jeremy@baymoo.org>]
5244 *) Make it possible to reuse SSLv2 sessions.
5247 *) In copy_email() check for >= 0 as a return value for
5248 X509_NAME_get_index_by_NID() since 0 is a valid index.
5249 [Steve Henson reported by Massimiliano Pala <madwolf@opensca.org>]
5251 *) Avoid coredump with unsupported or invalid public keys by checking if
5252 X509_get_pubkey() fails in PKCS7_verify(). Fix memory leak when
5253 PKCS7_verify() fails with non detached data.
5256 *) Don't use getenv in library functions when run as setuid/setgid.
5257 New function OPENSSL_issetugid().
5260 *) Avoid false positives in memory leak detection code (crypto/mem_dbg.c)
5261 due to incorrect handling of multi-threading:
5263 1. Fix timing glitch in the MemCheck_off() portion of CRYPTO_mem_ctrl().
5265 2. Fix logical glitch in is_MemCheck_on() aka CRYPTO_is_mem_check_on().
5267 3. Count how many times MemCheck_off() has been called so that
5268 nested use can be treated correctly. This also avoids
5269 inband-signalling in the previous code (which relied on the
5270 assumption that thread ID 0 is impossible).
5273 *) Add "-rand" option also to s_client and s_server.
5276 *) Fix CPU detection on Irix 6.x.
5277 [Kurt Hockenbury <khockenb@stevens-tech.edu> and
5278 "Bruce W. Forsberg" <bruce.forsberg@baesystems.com>]
5280 *) Fix X509_NAME bug which produced incorrect encoding if X509_NAME
5283 [This change does not apply to 0.9.7.]
5285 *) Use the cached encoding of an X509_NAME structure rather than
5286 copying it. This is apparently the reason for the libsafe "errors"
5287 but the code is actually correct.
5290 *) Add new function BN_rand_range(), and fix DSA_sign_setup() to prevent
5291 Bleichenbacher's DSA attack.
5292 Extend BN_[pseudo_]rand: As before, top=1 forces the highest two bits
5293 to be set and top=0 forces the highest bit to be set; top=-1 is new
5294 and leaves the highest bit random.
5295 [Ulf Moeller, Bodo Moeller]
5297 *) In the NCONF_...-based implementations for CONF_... queries
5298 (crypto/conf/conf_lib.c), if the input LHASH is NULL, avoid using
5299 a temporary CONF structure with the data component set to NULL
5300 (which gives segmentation faults in lh_retrieve).
5301 Instead, use NULL for the CONF pointer in CONF_get_string and
5302 CONF_get_number (which may use environment variables) and directly
5303 return NULL from CONF_get_section.
5306 *) Fix potential buffer overrun for EBCDIC.
5309 *) Tolerate nonRepudiation as being valid for S/MIME signing and certSign
5310 keyUsage if basicConstraints absent for a CA.
5313 *) Make SMIME_write_PKCS7() write mail header values with a format that
5314 is more generally accepted (no spaces before the semicolon), since
5315 some programs can't parse those values properly otherwise. Also make
5316 sure BIO's that break lines after each write do not create invalid
5320 *) Make the CRL encoding routines work with empty SEQUENCE OF. The
5321 macros previously used would not encode an empty SEQUENCE OF
5322 and break the signature.
5324 [This change does not apply to 0.9.7.]
5326 *) Zero the premaster secret after deriving the master secret in
5330 *) Add some EVP_add_digest_alias registrations (as found in
5331 OpenSSL_add_all_digests()) to SSL_library_init()
5332 aka OpenSSL_add_ssl_algorithms(). This provides improved
5333 compatibility with peers using X.509 certificates
5334 with unconventional AlgorithmIdentifier OIDs.
5337 *) Fix for Irix with NO_ASM.
5338 ["Bruce W. Forsberg" <bruce.forsberg@baesystems.com>]
5340 *) ./config script fixes.
5341 [Ulf Moeller, Richard Levitte]
5343 *) Fix 'openssl passwd -1'.
5346 *) Change PKCS12_key_gen_asc() so it can cope with non null
5347 terminated strings whose length is passed in the passlen
5348 parameter, for example from PEM callbacks. This was done
5349 by adding an extra length parameter to asc2uni().
5350 [Steve Henson, reported by <oddissey@samsung.co.kr>]
5352 *) Fix C code generated by 'openssl dsaparam -C': If a BN_bin2bn
5353 call failed, free the DSA structure.
5356 *) Fix to uni2asc() to cope with zero length Unicode strings.
5357 These are present in some PKCS#12 files.
5360 *) Increase s2->wbuf allocation by one byte in ssl2_new (ssl/s2_lib.c).
5361 Otherwise do_ssl_write (ssl/s2_pkt.c) will write beyond buffer limits
5362 when writing a 32767 byte record.
5363 [Bodo Moeller; problem reported by Eric Day <eday@concentric.net>]
5365 *) In RSA_eay_public_{en,ed}crypt and RSA_eay_mod_exp (rsa_eay.c),
5366 obtain lock CRYPTO_LOCK_RSA before setting rsa->_method_mod_{n,p,q}.
5368 (RSA objects have a reference count access to which is protected
5369 by CRYPTO_LOCK_RSA [see rsa_lib.c, s3_srvr.c, ssl_cert.c, ssl_rsa.c],
5370 so they are meant to be shared between threads.)
5371 [Bodo Moeller, Geoff Thorpe; original patch submitted by
5372 "Reddie, Steven" <Steven.Reddie@ca.com>]
5374 *) Fix a deadlock in CRYPTO_mem_leaks().
5377 *) Use better test patterns in bntest.
5380 *) rand_win.c fix for Borland C.
5383 *) BN_rshift bugfix for n == 0.
5386 *) Add a 'bctest' script that checks for some known 'bc' bugs
5387 so that 'make test' does not abort just because 'bc' is broken.
5390 *) Store verify_result within SSL_SESSION also for client side to
5391 avoid potential security hole. (Re-used sessions on the client side
5392 always resulted in verify_result==X509_V_OK, not using the original
5393 result of the server certificate verification.)
5396 *) Fix ssl3_pending: If the record in s->s3->rrec is not of type
5397 SSL3_RT_APPLICATION_DATA, return 0.
5398 Similarly, change ssl2_pending to return 0 if SSL_in_init(s) is true.
5402 Both ssl2_peek and ssl3_peek, which were totally broken in earlier
5403 releases, have been re-implemented by renaming the previous
5404 implementations of ssl2_read and ssl3_read to ssl2_read_internal
5405 and ssl3_read_internal, respectively, and adding 'peek' parameters
5406 to them. The new ssl[23]_{read,peek} functions are calls to
5407 ssl[23]_read_internal with the 'peek' flag set appropriately.
5408 A 'peek' parameter has also been added to ssl3_read_bytes, which
5409 does the actual work for ssl3_read_internal.
5412 *) Initialise "ex_data" member of RSA/DSA/DH structures prior to calling
5413 the method-specific "init()" handler. Also clean up ex_data after
5414 calling the method-specific "finish()" handler. Previously, this was
5415 happening the other way round.
5418 *) Increase BN_CTX_NUM (the number of BIGNUMs in a BN_CTX) to 16.
5419 The previous value, 12, was not always sufficient for BN_mod_exp().
5422 *) Make sure that shared libraries get the internal name engine with
5423 the full version number and not just 0. This should mark the
5424 shared libraries as not backward compatible. Of course, this should
5425 be changed again when we can guarantee backward binary compatibility.
5428 *) Fix typo in get_cert_by_subject() in by_dir.c
5429 [Jean-Marc Desperrier <jean-marc.desperrier@certplus.com>]
5431 *) Rework the system to generate shared libraries:
5433 - Make note of the expected extension for the shared libraries and
5434 if there is a need for symbolic links from for example libcrypto.so.0
5435 to libcrypto.so.0.9.7. There is extended info in Configure for
5438 - Make as few rebuilds of the shared libraries as possible.
5440 - Still avoid linking the OpenSSL programs with the shared libraries.
5442 - When installing, install the shared libraries separately from the
5446 *) Fix SSL_CTX_set_read_ahead macro to actually use its argument.
5448 Copy SSL_CTX's read_ahead flag to SSL object directly in SSL_new
5449 and not in SSL_clear because the latter is also used by the
5450 accept/connect functions; previously, the settings made by
5451 SSL_set_read_ahead would be lost during the handshake.
5452 [Bodo Moeller; problems reported by Anders Gertz <gertz@epact.se>]
5454 *) Correct util/mkdef.pl to be selective about disabled algorithms.
5455 Previously, it would create entries for disableed algorithms no
5459 *) Added several new manual pages for SSL_* function.
5462 Changes between 0.9.5a and 0.9.6 [24 Sep 2000]
5464 *) In ssl23_get_client_hello, generate an error message when faced
5465 with an initial SSL 3.0/TLS record that is too small to contain the
5466 first two bytes of the ClientHello message, i.e. client_version.
5467 (Note that this is a pathologic case that probably has never happened
5468 in real life.) The previous approach was to use the version number
5469 from the record header as a substitute; but our protocol choice
5470 should not depend on that one because it is not authenticated
5471 by the Finished messages.
5474 *) More robust randomness gathering functions for Windows.
5475 [Jeffrey Altman <jaltman@columbia.edu>]
5477 *) For compatibility reasons if the flag X509_V_FLAG_ISSUER_CHECK is
5478 not set then we don't setup the error code for issuer check errors
5479 to avoid possibly overwriting other errors which the callback does
5480 handle. If an application does set the flag then we assume it knows
5481 what it is doing and can handle the new informational codes
5485 *) Fix for a nasty bug in ASN1_TYPE handling. ASN1_TYPE is used for
5486 a general "ANY" type, as such it should be able to decode anything
5487 including tagged types. However it didn't check the class so it would
5488 wrongly interpret tagged types in the same way as their universal
5489 counterpart and unknown types were just rejected. Changed so that the
5490 tagged and unknown types are handled in the same way as a SEQUENCE:
5491 that is the encoding is stored intact. There is also a new type
5492 "V_ASN1_OTHER" which is used when the class is not universal, in this
5493 case we have no idea what the actual type is so we just lump them all
5497 *) On VMS, stdout may very well lead to a file that is written to
5498 in a record-oriented fashion. That means that every write() will
5499 write a separate record, which will be read separately by the
5500 programs trying to read from it. This can be very confusing.
5502 The solution is to put a BIO filter in the way that will buffer
5503 text until a linefeed is reached, and then write everything a
5504 line at a time, so every record written will be an actual line,
5505 not chunks of lines and not (usually doesn't happen, but I've
5506 seen it once) several lines in one record. BIO_f_linebuffer() is
5509 Currently, it's a VMS-only method, because that's where it has
5510 been tested well enough.
5513 *) Remove 'optimized' squaring variant in BN_mod_mul_montgomery,
5514 it can return incorrect results.
5515 (Note: The buggy variant was not enabled in OpenSSL 0.9.5a,
5516 but it was in 0.9.6-beta[12].)
5519 *) Disable the check for content being present when verifying detached
5520 signatures in pk7_smime.c. Some versions of Netscape (wrongly)
5521 include zero length content when signing messages.
5524 *) New BIO_shutdown_wr macro, which invokes the BIO_C_SHUTDOWN_WR
5525 BIO_ctrl (for BIO pairs).
5528 *) Add DSO method for VMS.
5531 *) Bug fix: Montgomery multiplication could produce results with the
5535 *) Add RPM specification openssl.spec and modify it to build three
5536 packages. The default package contains applications, application
5537 documentation and run-time libraries. The devel package contains
5538 include files, static libraries and function documentation. The
5539 doc package contains the contents of the doc directory. The original
5540 openssl.spec was provided by Damien Miller <djm@mindrot.org>.
5543 *) Add a large number of documentation files for many SSL routines.
5544 [Lutz Jaenicke <Lutz.Jaenicke@aet.TU-Cottbus.DE>]
5546 *) Add a configuration entry for Sony News 4.
5547 [NAKAJI Hiroyuki <nakaji@tutrp.tut.ac.jp>]
5549 *) Don't set the two most significant bits to one when generating a
5550 random number < q in the DSA library.
5553 *) New SSL API mode 'SSL_MODE_AUTO_RETRY'. This disables the default
5554 behaviour that SSL_read may result in SSL_ERROR_WANT_READ (even if
5555 the underlying transport is blocking) if a handshake took place.
5556 (The default behaviour is needed by applications such as s_client
5557 and s_server that use select() to determine when to use SSL_read;
5558 but for applications that know in advance when to expect data, it
5559 just makes things more complicated.)
5562 *) Add RAND_egd_bytes(), which gives control over the number of bytes read
5566 *) Add a few more EBCDIC conditionals that make `req' and `x509'
5567 work better on such systems.
5568 [Martin Kraemer <Martin.Kraemer@MchP.Siemens.De>]
5570 *) Add two demo programs for PKCS12_parse() and PKCS12_create().
5571 Update PKCS12_parse() so it copies the friendlyName and the
5572 keyid to the certificates aux info.
5575 *) Fix bug in PKCS7_verify() which caused an infinite loop
5576 if there was more than one signature.
5577 [Sven Uszpelkat <su@celocom.de>]
5579 *) Major change in util/mkdef.pl to include extra information
5580 about each symbol, as well as presentig variables as well
5581 as functions. This change means that there's n more need
5582 to rebuild the .num files when some algorithms are excluded.
5585 *) Allow the verify time to be set by an application,
5586 rather than always using the current time.
5589 *) Phase 2 verify code reorganisation. The certificate
5590 verify code now looks up an issuer certificate by a
5591 number of criteria: subject name, authority key id
5592 and key usage. It also verifies self signed certificates
5593 by the same criteria. The main comparison function is
5594 X509_check_issued() which performs these checks.
5596 Lot of changes were necessary in order to support this
5597 without completely rewriting the lookup code.
5599 Authority and subject key identifier are now cached.
5601 The LHASH 'certs' is X509_STORE has now been replaced
5602 by a STACK_OF(X509_OBJECT). This is mainly because an
5603 LHASH can't store or retrieve multiple objects with
5604 the same hash value.
5606 As a result various functions (which were all internal
5607 use only) have changed to handle the new X509_STORE
5608 structure. This will break anything that messed round
5609 with X509_STORE internally.
5611 The functions X509_STORE_add_cert() now checks for an
5612 exact match, rather than just subject name.
5614 The X509_STORE API doesn't directly support the retrieval
5615 of multiple certificates matching a given criteria, however
5616 this can be worked round by performing a lookup first
5617 (which will fill the cache with candidate certificates)
5618 and then examining the cache for matches. This is probably
5619 the best we can do without throwing out X509_LOOKUP
5620 entirely (maybe later...).
5622 The X509_VERIFY_CTX structure has been enhanced considerably.
5624 All certificate lookup operations now go via a get_issuer()
5625 callback. Although this currently uses an X509_STORE it
5626 can be replaced by custom lookups. This is a simple way
5627 to bypass the X509_STORE hackery necessary to make this
5628 work and makes it possible to use more efficient techniques
5629 in future. A very simple version which uses a simple
5630 STACK for its trusted certificate store is also provided
5631 using X509_STORE_CTX_trusted_stack().
5633 The verify_cb() and verify() callbacks now have equivalents
5634 in the X509_STORE_CTX structure.
5636 X509_STORE_CTX also has a 'flags' field which can be used
5637 to customise the verify behaviour.
5640 *) Add new PKCS#7 signing option PKCS7_NOSMIMECAP which
5641 excludes S/MIME capabilities.
5644 *) When a certificate request is read in keep a copy of the
5645 original encoding of the signed data and use it when outputing
5646 again. Signatures then use the original encoding rather than
5647 a decoded, encoded version which may cause problems if the
5648 request is improperly encoded.
5651 *) For consistency with other BIO_puts implementations, call
5652 buffer_write(b, ...) directly in buffer_puts instead of calling
5655 In BIO_puts, increment b->num_write as in BIO_write.
5656 [Peter.Sylvester@EdelWeb.fr]
5658 *) Fix BN_mul_word for the case where the word is 0. (We have to use
5659 BN_zero, we may not return a BIGNUM with an array consisting of
5663 *) Avoid calling abort() from within the library when problems are
5664 detected, except if preprocessor symbols have been defined
5665 (such as REF_CHECK, BN_DEBUG etc.).
5668 *) New openssl application 'rsautl'. This utility can be
5669 used for low level RSA operations. DER public key
5670 BIO/fp routines also added.
5673 *) New Configure entry and patches for compiling on QNX 4.
5674 [Andreas Schneider <andreas@ds3.etech.fh-hamburg.de>]
5676 *) A demo state-machine implementation was sponsored by
5677 Nuron (http://www.nuron.com/) and is now available in
5678 demos/state_machine.
5681 *) New options added to the 'dgst' utility for signature
5682 generation and verification.
5685 *) Unrecognized PKCS#7 content types are now handled via a
5686 catch all ASN1_TYPE structure. This allows unsupported
5687 types to be stored as a "blob" and an application can
5688 encode and decode it manually.
5691 *) Fix various signed/unsigned issues to make a_strex.c
5693 [Oscar Jacobsson <oscar.jacobsson@celocom.com>]
5695 *) ASN1 fixes. i2d_ASN1_OBJECT was not returning the correct
5696 length if passed a buffer. ASN1_INTEGER_to_BN failed
5697 if passed a NULL BN and its argument was negative.
5698 [Steve Henson, pointed out by Sven Heiberg <sven@tartu.cyber.ee>]
5700 *) Modification to PKCS#7 encoding routines to output definite
5701 length encoding. Since currently the whole structures are in
5702 memory there's not real point in using indefinite length
5703 constructed encoding. However if OpenSSL is compiled with
5704 the flag PKCS7_INDEFINITE_ENCODING the old form is used.
5707 *) Added BIO_vprintf() and BIO_vsnprintf().
5710 *) Added more prefixes to parse for in the the strings written
5711 through a logging bio, to cover all the levels that are available
5712 through syslog. The prefixes are now:
5714 PANIC, EMERG, EMR => LOG_EMERG
5715 ALERT, ALR => LOG_ALERT
5716 CRIT, CRI => LOG_CRIT
5717 ERROR, ERR => LOG_ERR
5718 WARNING, WARN, WAR => LOG_WARNING
5719 NOTICE, NOTE, NOT => LOG_NOTICE
5720 INFO, INF => LOG_INFO
5721 DEBUG, DBG => LOG_DEBUG
5723 and as before, if none of those prefixes are present at the
5724 beginning of the string, LOG_ERR is chosen.
5726 On Win32, the LOG_* levels are mapped according to this:
5728 LOG_EMERG, LOG_ALERT, LOG_CRIT, LOG_ERR => EVENTLOG_ERROR_TYPE
5729 LOG_WARNING => EVENTLOG_WARNING_TYPE
5730 LOG_NOTICE, LOG_INFO, LOG_DEBUG => EVENTLOG_INFORMATION_TYPE
5734 *) Made it possible to reconfigure with just the configuration
5735 argument "reconf" or "reconfigure". The command line arguments
5736 are stored in Makefile.ssl in the variable CONFIGURE_ARGS,
5737 and are retrieved from there when reconfiguring.
5741 [Assar Westerlund <assar@sics.se>, Richard Levitte]
5743 *) Add the arguments -CAfile and -CApath to the pkcs12 utility.
5746 *) The obj_dat.pl script was messing up the sorting of object
5747 names. The reason was that it compared the quoted version
5748 of strings as a result "OCSP" > "OCSP Signing" because
5749 " > SPACE. Changed script to store unquoted versions of
5750 names and add quotes on output. It was also omitting some
5751 names from the lookup table if they were given a default
5752 value (that is if SN is missing it is given the same
5753 value as LN and vice versa), these are now added on the
5754 grounds that if an object has a name we should be able to
5755 look it up. Finally added warning output when duplicate
5756 short or long names are found.
5759 *) Changes needed for Tandem NSK.
5760 [Scott Uroff <scott@xypro.com>]
5762 *) Fix SSL 2.0 rollback checking: Due to an off-by-one error in
5763 RSA_padding_check_SSLv23(), special padding was never detected
5764 and thus the SSL 3.0/TLS 1.0 countermeasure against protocol
5765 version rollback attacks was not effective.
5767 In s23_clnt.c, don't use special rollback-attack detection padding
5768 (RSA_SSLV23_PADDING) if SSL 2.0 is the only protocol enabled in the
5769 client; similarly, in s23_srvr.c, don't do the rollback check if
5770 SSL 2.0 is the only protocol enabled in the server.
5773 *) Make it possible to get hexdumps of unprintable data with 'openssl
5774 asn1parse'. By implication, the functions ASN1_parse_dump() and
5775 BIO_dump_indent() are added.
5778 *) New functions ASN1_STRING_print_ex() and X509_NAME_print_ex()
5779 these print out strings and name structures based on various
5780 flags including RFC2253 support and proper handling of
5781 multibyte characters. Added options to the 'x509' utility
5782 to allow the various flags to be set.
5785 *) Various fixes to use ASN1_TIME instead of ASN1_UTCTIME.
5786 Also change the functions X509_cmp_current_time() and
5787 X509_gmtime_adj() work with an ASN1_TIME structure,
5788 this will enable certificates using GeneralizedTime in validity
5789 dates to be checked.
5792 *) Make the NEG_PUBKEY_BUG code (which tolerates invalid
5793 negative public key encodings) on by default,
5794 NO_NEG_PUBKEY_BUG can be set to disable it.
5797 *) New function c2i_ASN1_OBJECT() which acts on ASN1_OBJECT
5798 content octets. An i2c_ASN1_OBJECT is unnecessary because
5799 the encoding can be trivially obtained from the structure.
5802 *) crypto/err.c locking bugfix: Use write locks (CRYPTO_w_[un]lock),
5803 not read locks (CRYPTO_r_[un]lock).
5806 *) A first attempt at creating official support for shared
5807 libraries through configuration. I've kept it so the
5808 default is static libraries only, and the OpenSSL programs
5809 are always statically linked for now, but there are
5810 preparations for dynamic linking in place.
5811 This has been tested on Linux and Tru64.
5814 *) Randomness polling function for Win9x, as described in:
5815 Peter Gutmann, Software Generation of Practically Strong
5819 *) Fix so PRNG is seeded in req if using an already existing
5823 *) New options to smime application. -inform and -outform
5824 allow alternative formats for the S/MIME message including
5825 PEM and DER. The -content option allows the content to be
5826 specified separately. This should allow things like Netscape
5827 form signing output easier to verify.
5830 *) Fix the ASN1 encoding of tags using the 'long form'.
5833 *) New ASN1 functions, i2c_* and c2i_* for INTEGER and BIT
5834 STRING types. These convert content octets to and from the
5835 underlying type. The actual tag and length octets are
5836 already assumed to have been read in and checked. These
5837 are needed because all other string types have virtually
5838 identical handling apart from the tag. By having versions
5839 of the ASN1 functions that just operate on content octets
5840 IMPLICIT tagging can be handled properly. It also allows
5841 the ASN1_ENUMERATED code to be cut down because ASN1_ENUMERATED
5842 and ASN1_INTEGER are identical apart from the tag.
5845 *) Change the handling of OID objects as follows:
5847 - New object identifiers are inserted in objects.txt, following
5848 the syntax given in objects.README.
5849 - objects.pl is used to process obj_mac.num and create a new
5851 - obj_dat.pl is used to create a new obj_dat.h, using the data in
5854 This is currently kind of a hack, and the perl code in objects.pl
5855 isn't very elegant, but it works as I intended. The simplest way
5856 to check that it worked correctly is to look in obj_dat.h and
5857 check the array nid_objs and make sure the objects haven't moved
5858 around (this is important!). Additions are OK, as well as
5859 consistent name changes.
5862 *) Add BSD-style MD5-based passwords to 'openssl passwd' (option '-1').
5865 *) Addition of the command line parameter '-rand file' to 'openssl req'.
5866 The given file adds to whatever has already been seeded into the
5867 random pool through the RANDFILE configuration file option or
5868 environment variable, or the default random state file.
5871 *) mkstack.pl now sorts each macro group into lexical order.
5872 Previously the output order depended on the order the files
5873 appeared in the directory, resulting in needless rewriting
5877 *) Patches to make OpenSSL compile under Win32 again. Mostly
5878 work arounds for the VC++ problem that it treats func() as
5879 func(void). Also stripped out the parts of mkdef.pl that
5880 added extra typesafe functions: these no longer exist.
5883 *) Reorganisation of the stack code. The macros are now all
5884 collected in safestack.h . Each macro is defined in terms of
5885 a "stack macro" of the form SKM_<name>(type, a, b). The
5886 DEBUG_SAFESTACK is now handled in terms of function casts,
5887 this has the advantage of retaining type safety without the
5888 use of additional functions. If DEBUG_SAFESTACK is not defined
5889 then the non typesafe macros are used instead. Also modified the
5890 mkstack.pl script to handle the new form. Needs testing to see
5891 if which (if any) compilers it chokes and maybe make DEBUG_SAFESTACK
5892 the default if no major problems. Similar behaviour for ASN1_SET_OF
5893 and PKCS12_STACK_OF.
5896 *) When some versions of IIS use the 'NET' form of private key the
5897 key derivation algorithm is different. Normally MD5(password) is
5898 used as a 128 bit RC4 key. In the modified case
5899 MD5(MD5(password) + "SGCKEYSALT") is used insted. Added some
5900 new functions i2d_RSA_NET(), d2i_RSA_NET() etc which are the same
5901 as the old Netscape_RSA functions except they have an additional
5902 'sgckey' parameter which uses the modified algorithm. Also added
5903 an -sgckey command line option to the rsa utility. Thanks to
5904 Adrian Peck <bertie@ncipher.com> for posting details of the modified
5905 algorithm to openssl-dev.
5908 *) The evp_local.h macros were using 'c.##kname' which resulted in
5909 invalid expansion on some systems (SCO 5.0.5 for example).
5910 Corrected to 'c.kname'.
5911 [Phillip Porch <root@theporch.com>]
5913 *) New X509_get1_email() and X509_REQ_get1_email() functions that return
5914 a STACK of email addresses from a certificate or request, these look
5915 in the subject name and the subject alternative name extensions and
5916 omit any duplicate addresses.
5919 *) Re-implement BN_mod_exp2_mont using independent (and larger) windows.
5920 This makes DSA verification about 2 % faster.
5923 *) Increase maximum window size in BN_mod_exp_... to 6 bits instead of 5
5924 (meaning that now 2^5 values will be precomputed, which is only 4 KB
5925 plus overhead for 1024 bit moduli).
5926 This makes exponentiations about 0.5 % faster for 1024 bit
5927 exponents (as measured by "openssl speed rsa2048").
5930 *) Rename memory handling macros to avoid conflicts with other
5932 Malloc => OPENSSL_malloc
5933 Malloc_locked => OPENSSL_malloc_locked
5934 Realloc => OPENSSL_realloc
5935 Free => OPENSSL_free
5938 *) New function BN_mod_exp_mont_word for small bases (roughly 15%
5939 faster than BN_mod_exp_mont, i.e. 7% for a full DH exchange).
5942 *) CygWin32 support.
5943 [John Jarvie <jjarvie@newsguy.com>]
5945 *) The type-safe stack code has been rejigged. It is now only compiled
5946 in when OpenSSL is configured with the DEBUG_SAFESTACK option and
5947 by default all type-specific stack functions are "#define"d back to
5948 standard stack functions. This results in more streamlined output
5949 but retains the type-safety checking possibilities of the original
5953 *) The STACK code has been cleaned up, and certain type declarations
5954 that didn't make a lot of sense have been brought in line. This has
5955 also involved a cleanup of sorts in safestack.h to more correctly
5956 map type-safe stack functions onto their plain stack counterparts.
5957 This work has also resulted in a variety of "const"ifications of
5958 lots of the code, especially "_cmp" operations which should normally
5959 be prototyped with "const" parameters anyway.
5962 *) When generating bytes for the first time in md_rand.c, 'stir the pool'
5963 by seeding with STATE_SIZE dummy bytes (with zero entropy count).
5964 (The PRNG state consists of two parts, the large pool 'state' and 'md',
5965 where all of 'md' is used each time the PRNG is used, but 'state'
5966 is used only indexed by a cyclic counter. As entropy may not be
5967 well distributed from the beginning, 'md' is important as a
5968 chaining variable. However, the output function chains only half
5969 of 'md', i.e. 80 bits. ssleay_rand_add, on the other hand, chains
5970 all of 'md', and seeding with STATE_SIZE dummy bytes will result
5971 in all of 'state' being rewritten, with the new values depending
5972 on virtually all of 'md'. This overcomes the 80 bit limitation.)
5975 *) In ssl/s2_clnt.c and ssl/s3_clnt.c, call ERR_clear_error() when
5976 the handshake is continued after ssl_verify_cert_chain();
5977 otherwise, if SSL_VERIFY_NONE is set, remaining error codes
5978 can lead to 'unexplainable' connection aborts later.
5979 [Bodo Moeller; problem tracked down by Lutz Jaenicke]
5981 *) Major EVP API cipher revision.
5982 Add hooks for extra EVP features. This allows various cipher
5983 parameters to be set in the EVP interface. Support added for variable
5984 key length ciphers via the EVP_CIPHER_CTX_set_key_length() function and
5985 setting of RC2 and RC5 parameters.
5987 Modify EVP_OpenInit() and EVP_SealInit() to cope with variable key length
5990 Remove lots of duplicated code from the EVP library. For example *every*
5991 cipher init() function handles the 'iv' in the same way according to the
5992 cipher mode. They also all do nothing if the 'key' parameter is NULL and
5993 for CFB and OFB modes they zero ctx->num.
5995 New functionality allows removal of S/MIME code RC2 hack.
5997 Most of the routines have the same form and so can be declared in terms
6000 By shifting this to the top level EVP_CipherInit() it can be removed from
6001 all individual ciphers. If the cipher wants to handle IVs or keys
6002 differently it can set the EVP_CIPH_CUSTOM_IV or EVP_CIPH_ALWAYS_CALL_INIT
6005 Change lots of functions like EVP_EncryptUpdate() to now return a
6006 value: although software versions of the algorithms cannot fail
6007 any installed hardware versions can.
6010 *) Implement SSL_OP_TLS_ROLLBACK_BUG: In ssl3_get_client_key_exchange, if
6011 this option is set, tolerate broken clients that send the negotiated
6012 protocol version number instead of the requested protocol version
6016 *) Call dh_tmp_cb (set by ..._TMP_DH_CB) with correct 'is_export' flag;
6017 i.e. non-zero for export ciphersuites, zero otherwise.
6018 Previous versions had this flag inverted, inconsistent with
6019 rsa_tmp_cb (..._TMP_RSA_CB).
6020 [Bodo Moeller; problem reported by Amit Chopra]
6022 *) Add missing DSA library text string. Work around for some IIS
6023 key files with invalid SEQUENCE encoding.
6026 *) Add a document (doc/standards.txt) that list all kinds of standards
6027 and so on that are implemented in OpenSSL.
6030 *) Enhance c_rehash script. Old version would mishandle certificates
6031 with the same subject name hash and wouldn't handle CRLs at all.
6032 Added -fingerprint option to crl utility, to support new c_rehash
6036 *) Eliminate non-ANSI declarations in crypto.h and stack.h.
6039 *) Fix for SSL server purpose checking. Server checking was
6040 rejecting certificates which had extended key usage present
6041 but no ssl client purpose.
6042 [Steve Henson, reported by Rene Grosser <grosser@hisolutions.com>]
6044 *) Make PKCS#12 code work with no password. The PKCS#12 spec
6045 is a little unclear about how a blank password is handled.
6046 Since the password in encoded as a BMPString with terminating
6047 double NULL a zero length password would end up as just the
6048 double NULL. However no password at all is different and is
6049 handled differently in the PKCS#12 key generation code. NS
6050 treats a blank password as zero length. MSIE treats it as no
6051 password on export: but it will try both on import. We now do
6052 the same: PKCS12_parse() tries zero length and no password if
6053 the password is set to "" or NULL (NULL is now a valid password:
6054 it wasn't before) as does the pkcs12 application.
6057 *) Bugfixes in apps/x509.c: Avoid a memory leak; and don't use
6058 perror when PEM_read_bio_X509_REQ fails, the error message must
6059 be obtained from the error queue.
6062 *) Avoid 'thread_hash' memory leak in crypto/err/err.c by freeing
6063 it in ERR_remove_state if appropriate, and change ERR_get_state
6064 accordingly to avoid race conditions (this is necessary because
6065 thread_hash is no longer constant once set).
6068 *) Bugfix for linux-elf makefile.one.
6071 *) RSA_get_default_method() will now cause a default
6072 RSA_METHOD to be chosen if one doesn't exist already.
6073 Previously this was only set during a call to RSA_new()
6074 or RSA_new_method(NULL) meaning it was possible for
6075 RSA_get_default_method() to return NULL.
6078 *) Added native name translation to the existing DSO code
6079 that will convert (if the flag to do so is set) filenames
6080 that are sufficiently small and have no path information
6081 into a canonical native form. Eg. "blah" converted to
6082 "libblah.so" or "blah.dll" etc.
6085 *) New function ERR_error_string_n(e, buf, len) which is like
6086 ERR_error_string(e, buf), but writes at most 'len' bytes
6087 including the 0 terminator. For ERR_error_string_n, 'buf'
6089 [Damien Miller <djm@mindrot.org>, Bodo Moeller]
6091 *) CONF library reworked to become more general. A new CONF
6092 configuration file reader "class" is implemented as well as a
6093 new functions (NCONF_*, for "New CONF") to handle it. The now
6094 old CONF_* functions are still there, but are reimplemented to
6095 work in terms of the new functions. Also, a set of functions
6096 to handle the internal storage of the configuration data is
6097 provided to make it easier to write new configuration file
6098 reader "classes" (I can definitely see something reading a
6099 configuration file in XML format, for example), called _CONF_*,
6100 or "the configuration storage API"...
6102 The new configuration file reading functions are:
6104 NCONF_new, NCONF_free, NCONF_load, NCONF_load_fp, NCONF_load_bio,
6105 NCONF_get_section, NCONF_get_string, NCONF_get_numbre
6107 NCONF_default, NCONF_WIN32
6109 NCONF_dump_fp, NCONF_dump_bio
6111 NCONF_default and NCONF_WIN32 are method (or "class") choosers,
6112 NCONF_new creates a new CONF object. This works in the same way
6113 as other interfaces in OpenSSL, like the BIO interface.
6114 NCONF_dump_* dump the internal storage of the configuration file,
6115 which is useful for debugging. All other functions take the same
6116 arguments as the old CONF_* functions wth the exception of the
6117 first that must be a `CONF *' instead of a `LHASH *'.
6119 To make it easer to use the new classes with the old CONF_* functions,
6120 the function CONF_set_default_method is provided.
6123 *) Add '-tls1' option to 'openssl ciphers', which was already
6124 mentioned in the documentation but had not been implemented.
6125 (This option is not yet really useful because even the additional
6126 experimental TLS 1.0 ciphers are currently treated as SSL 3.0 ciphers.)
6129 *) Initial DSO code added into libcrypto for letting OpenSSL (and
6130 OpenSSL-based applications) load shared libraries and bind to
6131 them in a portable way.
6132 [Geoff Thorpe, with contributions from Richard Levitte]
6134 Changes between 0.9.5 and 0.9.5a [1 Apr 2000]
6136 *) Make sure _lrotl and _lrotr are only used with MSVC.
6138 *) Use lock CRYPTO_LOCK_RAND correctly in ssleay_rand_status
6139 (the default implementation of RAND_status).
6141 *) Rename openssl x509 option '-crlext', which was added in 0.9.5,
6142 to '-clrext' (= clear extensions), as intended and documented.
6143 [Bodo Moeller; inconsistency pointed out by Michael Attili
6146 *) Fix for HMAC. It wasn't zeroing the rest of the block if the key length
6147 was larger than the MD block size.
6148 [Steve Henson, pointed out by Yost William <YostW@tce.com>]
6150 *) Modernise PKCS12_parse() so it uses STACK_OF(X509) for its ca argument
6151 fix a leak when the ca argument was passed as NULL. Stop X509_PUBKEY_set()
6152 using the passed key: if the passed key was a private key the result
6153 of X509_print(), for example, would be to print out all the private key
6157 *) des_quad_cksum() byte order bug fix.
6158 [Ulf Möller, using the problem description in krb4-0.9.7, where
6159 the solution is attributed to Derrick J Brashear <shadow@DEMENTIA.ORG>]
6161 *) Fix so V_ASN1_APP_CHOOSE works again: however its use is strongly
6163 [Steve Henson, pointed out by Brian Korver <briank@cs.stanford.edu>]
6165 *) For easily testing in shell scripts whether some command
6166 'openssl XXX' exists, the new pseudo-command 'openssl no-XXX'
6167 returns with exit code 0 iff no command of the given name is available.
6168 'no-XXX' is printed in this case, 'XXX' otherwise. In both cases,
6169 the output goes to stdout and nothing is printed to stderr.
6170 Additional arguments are always ignored.
6172 Since for each cipher there is a command of the same name,
6173 the 'no-cipher' compilation switches can be tested this way.
6175 ('openssl no-XXX' is not able to detect pseudo-commands such
6176 as 'quit', 'list-XXX-commands', or 'no-XXX' itself.)
6179 *) Update test suite so that 'make test' succeeds in 'no-rsa' configuration.
6182 *) For SSL_[CTX_]set_tmp_dh, don't create a DH key if SSL_OP_SINGLE_DH_USE
6183 is set; it will be thrown away anyway because each handshake creates
6185 ssl_cert_dup, which is used by SSL_new, now copies DH keys in addition
6186 to parameters -- in previous versions (since OpenSSL 0.9.3) the
6187 'default key' from SSL_CTX_set_tmp_dh would always be lost, meanining
6188 you effectivly got SSL_OP_SINGLE_DH_USE when using this macro.
6191 *) New s_client option -ign_eof: EOF at stdin is ignored, and
6192 'Q' and 'R' lose their special meanings (quit/renegotiate).
6193 This is part of what -quiet does; unlike -quiet, -ign_eof
6194 does not suppress any output.
6197 *) Add compatibility options to the purpose and trust code. The
6198 purpose X509_PURPOSE_ANY is "any purpose" which automatically
6199 accepts a certificate or CA, this was the previous behaviour,
6200 with all the associated security issues.
6202 X509_TRUST_COMPAT is the old trust behaviour: only and
6203 automatically trust self signed roots in certificate store. A
6204 new trust setting X509_TRUST_DEFAULT is used to specify that
6205 a purpose has no associated trust setting and it should instead
6206 use the value in the default purpose.
6209 *) Fix the PKCS#8 DSA private key code so it decodes keys again
6210 and fix a memory leak.
6213 *) In util/mkerr.pl (which implements 'make errors'), preserve
6214 reason strings from the previous version of the .c file, as
6215 the default to have only downcase letters (and digits) in
6216 automatically generated reasons codes is not always appropriate.
6219 *) In ERR_load_ERR_strings(), build an ERR_LIB_SYS error reason table
6220 using strerror. Previously, ERR_reason_error_string() returned
6221 library names as reason strings for SYSerr; but SYSerr is a special
6222 case where small numbers are errno values, not library numbers.
6225 *) Add '-dsaparam' option to 'openssl dhparam' application. This
6226 converts DSA parameters into DH parameters. (When creating parameters,
6227 DSA_generate_parameters is used.)
6230 *) Include 'length' (recommended exponent length) in C code generated
6231 by 'openssl dhparam -C'.
6234 *) The second argument to set_label in perlasm was already being used
6235 so couldn't be used as a "file scope" flag. Moved to third argument
6239 *) In PEM_ASN1_write_bio and some other functions, use RAND_pseudo_bytes
6240 instead of RAND_bytes for encryption IVs and salts.
6243 *) Include RAND_status() into RAND_METHOD instead of implementing
6244 it only for md_rand.c Otherwise replacing the PRNG by calling
6245 RAND_set_rand_method would be impossible.
6248 *) Don't let DSA_generate_key() enter an infinite loop if the random
6249 number generation fails.
6252 *) New 'rand' application for creating pseudo-random output.
6255 *) Added configuration support for Linux/IA64
6256 [Rolf Haberrecker <rolf@suse.de>]
6258 *) Assembler module support for Mingw32.
6261 *) Shared library support for HPUX (in shlib/).
6262 [Lutz Jaenicke <Lutz.Jaenicke@aet.TU-Cottbus.DE> and Anonymous]
6264 *) Shared library support for Solaris gcc.
6265 [Lutz Behnke <behnke@trustcenter.de>]
6267 Changes between 0.9.4 and 0.9.5 [28 Feb 2000]
6269 *) PKCS7_encrypt() was adding text MIME headers twice because they
6270 were added manually and by SMIME_crlf_copy().
6273 *) In bntest.c don't call BN_rand with zero bits argument.
6274 [Steve Henson, pointed out by Andrew W. Gray <agray@iconsinc.com>]
6276 *) BN_mul bugfix: In bn_mul_part_recursion() only the a>a[n] && b>b[n]
6277 case was implemented. This caused BN_div_recp() to fail occasionally.
6280 *) Add an optional second argument to the set_label() in the perl
6281 assembly language builder. If this argument exists and is set
6282 to 1 it signals that the assembler should use a symbol whose
6283 scope is the entire file, not just the current function. This
6284 is needed with MASM which uses the format label:: for this scope.
6285 [Steve Henson, pointed out by Peter Runestig <peter@runestig.com>]
6287 *) Change the ASN1 types so they are typedefs by default. Before
6288 almost all types were #define'd to ASN1_STRING which was causing
6289 STACK_OF() problems: you couldn't declare STACK_OF(ASN1_UTF8STRING)
6293 *) Change names of new functions to the new get1/get0 naming
6294 convention: After 'get1', the caller owns a reference count
6295 and has to call ..._free; 'get0' returns a pointer to some
6296 data structure without incrementing reference counters.
6297 (Some of the existing 'get' functions increment a reference
6298 counter, some don't.)
6299 Similarly, 'set1' and 'add1' functions increase reference
6300 counters or duplicate objects.
6303 *) Allow for the possibility of temp RSA key generation failure:
6304 the code used to assume it always worked and crashed on failure.
6307 *) Fix potential buffer overrun problem in BIO_printf().
6308 [Ulf Möller, using public domain code by Patrick Powell; problem
6309 pointed out by David Sacerdote <das33@cornell.edu>]
6311 *) Support EGD <http://www.lothar.com/tech/crypto/>. New functions
6312 RAND_egd() and RAND_status(). In the command line application,
6313 the EGD socket can be specified like a seed file using RANDFILE
6317 *) Allow the string CERTIFICATE to be tolerated in PKCS#7 structures.
6318 Some CAs (e.g. Verisign) distribute certificates in this form.
6321 *) Remove the SSL_ALLOW_ADH compile option and set the default cipher
6322 list to exclude them. This means that no special compilation option
6323 is needed to use anonymous DH: it just needs to be included in the
6327 *) Change the EVP_MD_CTX_type macro so its meaning consistent with
6328 EVP_MD_type. The old functionality is available in a new macro called
6329 EVP_MD_md(). Change code that uses it and update docs.
6332 *) ..._ctrl functions now have corresponding ..._callback_ctrl functions
6333 where the 'void *' argument is replaced by a function pointer argument.
6334 Previously 'void *' was abused to point to functions, which works on
6335 many platforms, but is not correct. As these functions are usually
6336 called by macros defined in OpenSSL header files, most source code
6337 should work without changes.
6340 *) <openssl/opensslconf.h> (which is created by Configure) now contains
6341 sections with information on -D... compiler switches used for
6342 compiling the library so that applications can see them. To enable
6343 one of these sections, a pre-processor symbol OPENSSL_..._DEFINES
6344 must be defined. E.g.,
6345 #define OPENSSL_ALGORITHM_DEFINES
6346 #include <openssl/opensslconf.h>
6347 defines all pertinent NO_<algo> symbols, such as NO_IDEA, NO_RSA, etc.
6348 [Richard Levitte, Ulf and Bodo Möller]
6350 *) Bugfix: Tolerate fragmentation and interleaving in the SSL 3/TLS
6354 *) Change the 'other' type in certificate aux info to a STACK_OF
6355 X509_ALGOR. Although not an AlgorithmIdentifier as such it has
6356 the required ASN1 format: arbitrary types determined by an OID.
6359 *) Add some PEM_write_X509_REQ_NEW() functions and a command line
6360 argument to 'req'. This is not because the function is newer or
6361 better than others it just uses the work 'NEW' in the certificate
6362 request header lines. Some software needs this.
6365 *) Reorganise password command line arguments: now passwords can be
6366 obtained from various sources. Delete the PEM_cb function and make
6367 it the default behaviour: i.e. if the callback is NULL and the
6368 usrdata argument is not NULL interpret it as a null terminated pass
6369 phrase. If usrdata and the callback are NULL then the pass phrase
6370 is prompted for as usual.
6373 *) Add support for the Compaq Atalla crypto accelerator. If it is installed,
6374 the support is automatically enabled. The resulting binaries will
6375 autodetect the card and use it if present.
6376 [Ben Laurie and Compaq Inc.]
6378 *) Work around for Netscape hang bug. This sends certificate request
6379 and server done in one record. Since this is perfectly legal in the
6380 SSL/TLS protocol it isn't a "bug" option and is on by default. See
6381 the bugs/SSLv3 entry for more info.
6384 *) HP-UX tune-up: new unified configs, HP C compiler bug workaround.
6387 *) Add -rand argument to smime and pkcs12 applications and read/write
6391 *) New 'passwd' tool for crypt(3) and apr1 password hashes.
6394 *) Add command line password options to the remaining applications.
6397 *) Bug fix for BN_div_recp() for numerators with an even number of
6401 *) More tests in bntest.c, and changed test_bn output.
6404 *) ./config recognizes MacOS X now.
6407 *) Bug fix for BN_div() when the first words of num and divsor are
6408 equal (it gave wrong results if (rem=(n1-q*d0)&BN_MASK2) < d0).
6411 *) Add support for various broken PKCS#8 formats, and command line
6412 options to produce them.
6415 *) New functions BN_CTX_start(), BN_CTX_get() and BT_CTX_end() to
6416 get temporary BIGNUMs from a BN_CTX.
6419 *) Correct return values in BN_mod_exp_mont() and BN_mod_exp2_mont()
6423 *) Change the SSLeay_add_all_*() functions to OpenSSL_add_all_*() and
6424 include a #define from the old name to the new. The original intent
6425 was that statically linked binaries could for example just call
6426 SSLeay_add_all_ciphers() to just add ciphers to the table and not
6427 link with digests. This never worked becayse SSLeay_add_all_digests()
6428 and SSLeay_add_all_ciphers() were in the same source file so calling
6429 one would link with the other. They are now in separate source files.
6432 *) Add a new -notext option to 'ca' and a -pubkey option to 'spkac'.
6435 *) Use a less unusual form of the Miller-Rabin primality test (it used
6436 a binary algorithm for exponentiation integrated into the Miller-Rabin
6437 loop, our standard modexp algorithms are faster).
6440 *) Support for the EBCDIC character set completed.
6441 [Martin Kraemer <Martin.Kraemer@Mch.SNI.De>]
6443 *) Source code cleanups: use const where appropriate, eliminate casts,
6444 use void * instead of char * in lhash.
6447 *) Bugfix: ssl3_send_server_key_exchange was not restartable
6448 (the state was not changed to SSL3_ST_SW_KEY_EXCH_B, and because of
6449 this the server could overwrite ephemeral keys that the client
6453 *) Turn DSA_is_prime into a macro that calls BN_is_prime,
6454 using 50 iterations of the Rabin-Miller test.
6456 DSA_generate_parameters now uses BN_is_prime_fasttest (with 50
6457 iterations of the Rabin-Miller test as required by the appendix
6458 to FIPS PUB 186[-1]) instead of DSA_is_prime.
6459 As BN_is_prime_fasttest includes trial division, DSA parameter
6460 generation becomes much faster.
6462 This implies a change for the callback functions in DSA_is_prime
6463 and DSA_generate_parameters: The callback function is called once
6464 for each positive witness in the Rabin-Miller test, not just
6465 occasionally in the inner loop; and the parameters to the
6466 callback function now provide an iteration count for the outer
6467 loop rather than for the current invocation of the inner loop.
6468 DSA_generate_parameters additionally can call the callback
6469 function with an 'iteration count' of -1, meaning that a
6470 candidate has passed the trial division test (when q is generated
6471 from an application-provided seed, trial division is skipped).
6474 *) New function BN_is_prime_fasttest that optionally does trial
6475 division before starting the Rabin-Miller test and has
6476 an additional BN_CTX * argument (whereas BN_is_prime always
6477 has to allocate at least one BN_CTX).
6478 'callback(1, -1, cb_arg)' is called when a number has passed the
6479 trial division stage.
6482 *) Fix for bug in CRL encoding. The validity dates weren't being handled
6486 *) New -pkcs12 option to CA.pl script to write out a PKCS#12 file.
6489 *) New function BN_pseudo_rand().
6492 *) Clean up BN_mod_mul_montgomery(): replace the broken (and unreadable)
6493 bignum version of BN_from_montgomery() with the working code from
6494 SSLeay 0.9.0 (the word based version is faster anyway), and clean up
6498 *) Avoid a race condition in s2_clnt.c (function get_server_hello) that
6499 made it impossible to use the same SSL_SESSION data structure in
6500 SSL2 clients in multiple threads.
6503 *) The return value of RAND_load_file() no longer counts bytes obtained
6504 by stat(). RAND_load_file(..., -1) is new and uses the complete file
6505 to seed the PRNG (previously an explicit byte count was required).
6506 [Ulf Möller, Bodo Möller]
6508 *) Clean up CRYPTO_EX_DATA functions, some of these didn't have prototypes
6509 used (char *) instead of (void *) and had casts all over the place.
6512 *) Make BN_generate_prime() return NULL on error if ret!=NULL.
6515 *) Retain source code compatibility for BN_prime_checks macro:
6516 BN_is_prime(..., BN_prime_checks, ...) now uses
6517 BN_prime_checks_for_size to determine the appropriate number of
6518 Rabin-Miller iterations.
6521 *) Diffie-Hellman uses "safe" primes: DH_check() return code renamed to
6522 DH_CHECK_P_NOT_SAFE_PRIME.
6523 (Check if this is true? OpenPGP calls them "strong".)
6526 *) Merge the functionality of "dh" and "gendh" programs into a new program
6527 "dhparam". The old programs are retained for now but will handle DH keys
6528 (instead of parameters) in future.
6531 *) Make the ciphers, s_server and s_client programs check the return values
6532 when a new cipher list is set.
6535 *) Enhance the SSL/TLS cipher mechanism to correctly handle the TLS 56bit
6536 ciphers. Before when the 56bit ciphers were enabled the sorting was
6539 The syntax for the cipher sorting has been extended to support sorting by
6540 cipher-strength (using the strength_bits hard coded in the tables).
6541 The new command is "@STRENGTH" (see also doc/apps/ciphers.pod).
6543 Fix a bug in the cipher-command parser: when supplying a cipher command
6544 string with an "undefined" symbol (neither command nor alphanumeric
6545 [A-Za-z0-9], ssl_set_cipher_list used to hang in an endless loop. Now
6546 an error is flagged.
6548 Due to the strength-sorting extension, the code of the
6549 ssl_create_cipher_list() function was completely rearranged. I hope that
6550 the readability was also increased :-)
6551 [Lutz Jaenicke <Lutz.Jaenicke@aet.TU-Cottbus.DE>]
6553 *) Minor change to 'x509' utility. The -CAcreateserial option now uses 1
6554 for the first serial number and places 2 in the serial number file. This
6555 avoids problems when the root CA is created with serial number zero and
6556 the first user certificate has the same issuer name and serial number
6560 *) Fixes to X509_ATTRIBUTE utilities, change the 'req' program so it uses
6561 the new code. Add documentation for this stuff.
6564 *) Changes to X509_ATTRIBUTE utilities. These have been renamed from
6565 X509_*() to X509at_*() on the grounds that they don't handle X509
6566 structures and behave in an analagous way to the X509v3 functions:
6567 they shouldn't be called directly but wrapper functions should be used
6570 So we also now have some wrapper functions that call the X509at functions
6571 when passed certificate requests. (TO DO: similar things can be done with
6572 PKCS#7 signed and unsigned attributes, PKCS#12 attributes and a few other
6573 things. Some of these need some d2i or i2d and print functionality
6574 because they handle more complex structures.)
6577 *) Add missing #ifndefs that caused missing symbols when building libssl
6578 as a shared library without RSA. Use #ifndef NO_SSL2 instead of
6579 NO_RSA in ssl/s2*.c.
6580 [Kris Kennaway <kris@hub.freebsd.org>, modified by Ulf Möller]
6582 *) Precautions against using the PRNG uninitialized: RAND_bytes() now
6583 has a return value which indicates the quality of the random data
6584 (1 = ok, 0 = not seeded). Also an error is recorded on the thread's
6585 error queue. New function RAND_pseudo_bytes() generates output that is
6586 guaranteed to be unique but not unpredictable. RAND_add is like
6587 RAND_seed, but takes an extra argument for an entropy estimate
6588 (RAND_seed always assumes full entropy).
6591 *) Do more iterations of Rabin-Miller probable prime test (specifically,
6592 3 for 1024-bit primes, 6 for 512-bit primes, 12 for 256-bit primes
6593 instead of only 2 for all lengths; see BN_prime_checks_for_size definition
6594 in crypto/bn/bn_prime.c for the complete table). This guarantees a
6595 false-positive rate of at most 2^-80 for random input.
6598 *) Rewrite ssl3_read_n (ssl/s3_pkt.c) avoiding a couple of bugs.
6601 *) New function X509_CTX_rget_chain() (renamed to X509_CTX_get1_chain
6602 in the 0.9.5 release), this returns the chain
6603 from an X509_CTX structure with a dup of the stack and all
6604 the X509 reference counts upped: so the stack will exist
6605 after X509_CTX_cleanup() has been called. Modify pkcs12.c
6608 Also make SSL_SESSION_print() print out the verify return
6612 *) Add manpage for the pkcs12 command. Also change the default
6613 behaviour so MAC iteration counts are used unless the new
6614 -nomaciter option is used. This improves file security and
6615 only older versions of MSIE (4.0 for example) need it.
6618 *) Honor the no-xxx Configure options when creating .DEF files.
6621 *) Add PKCS#10 attributes to field table: challengePassword,
6622 unstructuredName and unstructuredAddress. These are taken from
6623 draft PKCS#9 v2.0 but are compatible with v1.2 provided no
6624 international characters are used.
6626 More changes to X509_ATTRIBUTE code: allow the setting of types
6627 based on strings. Remove the 'loc' parameter when adding
6628 attributes because these will be a SET OF encoding which is sorted
6632 *) Initial changes to the 'req' utility to allow request generation
6633 automation. This will allow an application to just generate a template
6634 file containing all the field values and have req construct the
6637 Initial support for X509_ATTRIBUTE handling. Stacks of these are
6638 used all over the place including certificate requests and PKCS#7
6639 structures. They are currently handled manually where necessary with
6640 some primitive wrappers for PKCS#7. The new functions behave in a
6641 manner analogous to the X509 extension functions: they allow
6642 attributes to be looked up by NID and added.
6644 Later something similar to the X509V3 code would be desirable to
6645 automatically handle the encoding, decoding and printing of the
6646 more complex types. The string types like challengePassword can
6647 be handled by the string table functions.
6649 Also modified the multi byte string table handling. Now there is
6650 a 'global mask' which masks out certain types. The table itself
6651 can use the flag STABLE_NO_MASK to ignore the mask setting: this
6652 is useful when for example there is only one permissible type
6653 (as in countryName) and using the mask might result in no valid
6657 *) Clean up 'Finished' handling, and add functions SSL_get_finished and
6658 SSL_get_peer_finished to allow applications to obtain the latest
6659 Finished messages sent to the peer or expected from the peer,
6660 respectively. (SSL_get_peer_finished is usually the Finished message
6661 actually received from the peer, otherwise the protocol will be aborted.)
6663 As the Finished message are message digests of the complete handshake
6664 (with a total of 192 bits for TLS 1.0 and more for SSL 3.0), they can
6665 be used for external authentication procedures when the authentication
6666 provided by SSL/TLS is not desired or is not enough.
6669 *) Enhanced support for Alpha Linux is added. Now ./config checks if
6670 the host supports BWX extension and if Compaq C is present on the
6671 $PATH. Just exploiting of the BWX extension results in 20-30%
6672 performance kick for some algorithms, e.g. DES and RC4 to mention
6673 a couple. Compaq C in turn generates ~20% faster code for MD5 and
6677 *) Add support for MS "fast SGC". This is arguably a violation of the
6678 SSL3/TLS protocol. Netscape SGC does two handshakes: the first with
6679 weak crypto and after checking the certificate is SGC a second one
6680 with strong crypto. MS SGC stops the first handshake after receiving
6681 the server certificate message and sends a second client hello. Since
6682 a server will typically do all the time consuming operations before
6683 expecting any further messages from the client (server key exchange
6684 is the most expensive) there is little difference between the two.
6686 To get OpenSSL to support MS SGC we have to permit a second client
6687 hello message after we have sent server done. In addition we have to
6688 reset the MAC if we do get this second client hello.
6691 *) Add a function 'd2i_AutoPrivateKey()' this will automatically decide
6692 if a DER encoded private key is RSA or DSA traditional format. Changed
6693 d2i_PrivateKey_bio() to use it. This is only needed for the "traditional"
6694 format DER encoded private key. Newer code should use PKCS#8 format which
6695 has the key type encoded in the ASN1 structure. Added DER private key
6696 support to pkcs8 application.
6699 *) SSL 3/TLS 1 servers now don't request certificates when an anonymous
6700 ciphersuites has been selected (as required by the SSL 3/TLS 1
6701 specifications). Exception: When SSL_VERIFY_FAIL_IF_NO_PEER_CERT
6702 is set, we interpret this as a request to violate the specification
6703 (the worst that can happen is a handshake failure, and 'correct'
6704 behaviour would result in a handshake failure anyway).
6707 *) In SSL_CTX_add_session, take into account that there might be multiple
6708 SSL_SESSION structures with the same session ID (e.g. when two threads
6709 concurrently obtain them from an external cache).
6710 The internal cache can handle only one SSL_SESSION with a given ID,
6711 so if there's a conflict, we now throw out the old one to achieve
6715 *) Add OIDs for idea and blowfish in CBC mode. This will allow both
6716 to be used in PKCS#5 v2.0 and S/MIME. Also add checking to
6717 some routines that use cipher OIDs: some ciphers do not have OIDs
6718 defined and so they cannot be used for S/MIME and PKCS#5 v2.0 for
6722 *) Simplify the trust setting structure and code. Now we just have
6723 two sequences of OIDs for trusted and rejected settings. These will
6724 typically have values the same as the extended key usage extension
6725 and any application specific purposes.
6727 The trust checking code now has a default behaviour: it will just
6728 check for an object with the same NID as the passed id. Functions can
6729 be provided to override either the default behaviour or the behaviour
6730 for a given id. SSL client, server and email already have functions
6731 in place for compatibility: they check the NID and also return "trusted"
6732 if the certificate is self signed.
6735 *) Add d2i,i2d bio/fp functions for PrivateKey: these convert the
6736 traditional format into an EVP_PKEY structure.
6739 *) Add a password callback function PEM_cb() which either prompts for
6740 a password if usr_data is NULL or otherwise assumes it is a null
6741 terminated password. Allow passwords to be passed on command line
6742 environment or config files in a few more utilities.
6745 *) Add a bunch of DER and PEM functions to handle PKCS#8 format private
6746 keys. Add some short names for PKCS#8 PBE algorithms and allow them
6747 to be specified on the command line for the pkcs8 and pkcs12 utilities.
6748 Update documentation.
6751 *) Support for ASN1 "NULL" type. This could be handled before by using
6752 ASN1_TYPE but there wasn't any function that would try to read a NULL
6753 and produce an error if it couldn't. For compatibility we also have
6754 ASN1_NULL_new() and ASN1_NULL_free() functions but these are faked and
6755 don't allocate anything because they don't need to.
6758 *) Initial support for MacOS is now provided. Examine INSTALL.MacOS
6760 [Andy Polyakov, Roy Woods <roy@centicsystems.ca>]
6762 *) Rebuild of the memory allocation routines used by OpenSSL code and
6763 possibly others as well. The purpose is to make an interface that
6764 provide hooks so anyone can build a separate set of allocation and
6765 deallocation routines to be used by OpenSSL, for example memory
6766 pool implementations, or something else, which was previously hard
6767 since Malloc(), Realloc() and Free() were defined as macros having
6768 the values malloc, realloc and free, respectively (except for Win32
6769 compilations). The same is provided for memory debugging code.
6770 OpenSSL already comes with functionality to find memory leaks, but
6771 this gives people a chance to debug other memory problems.
6773 With these changes, a new set of functions and macros have appeared:
6775 CRYPTO_set_mem_debug_functions() [F]
6776 CRYPTO_get_mem_debug_functions() [F]
6777 CRYPTO_dbg_set_options() [F]
6778 CRYPTO_dbg_get_options() [F]
6779 CRYPTO_malloc_debug_init() [M]
6781 The memory debug functions are NULL by default, unless the library
6782 is compiled with CRYPTO_MDEBUG or friends is defined. If someone
6783 wants to debug memory anyway, CRYPTO_malloc_debug_init() (which
6784 gives the standard debugging functions that come with OpenSSL) or
6785 CRYPTO_set_mem_debug_functions() (tells OpenSSL to use functions
6786 provided by the library user) must be used. When the standard
6787 debugging functions are used, CRYPTO_dbg_set_options can be used to
6788 request additional information:
6789 CRYPTO_dbg_set_options(V_CYRPTO_MDEBUG_xxx) corresponds to setting
6790 the CRYPTO_MDEBUG_xxx macro when compiling the library.
6792 Also, things like CRYPTO_set_mem_functions will always give the
6793 expected result (the new set of functions is used for allocation
6794 and deallocation) at all times, regardless of platform and compiler
6797 To finish it up, some functions that were never use in any other
6798 way than through macros have a new API and new semantic:
6801 CRYPTO_dbg_realloc()
6804 All macros of value have retained their old syntax.
6805 [Richard Levitte and Bodo Moeller]
6807 *) Some S/MIME fixes. The OID for SMIMECapabilities was wrong, the
6808 ordering of SMIMECapabilities wasn't in "strength order" and there
6809 was a missing NULL in the AlgorithmIdentifier for the SHA1 signature
6813 *) Some ASN1 types with illegal zero length encoding (INTEGER,
6814 ENUMERATED and OBJECT IDENTIFIER) choked the ASN1 routines.
6815 [Frans Heymans <fheymans@isaserver.be>, modified by Steve Henson]
6817 *) Merge in my S/MIME library for OpenSSL. This provides a simple
6818 S/MIME API on top of the PKCS#7 code, a MIME parser (with enough
6819 functionality to handle multipart/signed properly) and a utility
6820 called 'smime' to call all this stuff. This is based on code I
6821 originally wrote for Celo who have kindly allowed it to be
6822 included in OpenSSL.
6825 *) Add variants des_set_key_checked and des_set_key_unchecked of
6826 des_set_key (aka des_key_sched). Global variable des_check_key
6827 decides which of these is called by des_set_key; this way
6828 des_check_key behaves as it always did, but applications and
6829 the library itself, which was buggy for des_check_key == 1,
6830 have a cleaner way to pick the version they need.
6833 *) New function PKCS12_newpass() which changes the password of a
6837 *) Modify X509_TRUST and X509_PURPOSE so it also uses a static and
6838 dynamic mix. In both cases the ids can be used as an index into the
6839 table. Also modified the X509_TRUST_add() and X509_PURPOSE_add()
6840 functions so they accept a list of the field values and the
6841 application doesn't need to directly manipulate the X509_TRUST
6845 *) Modify the ASN1_STRING_TABLE stuff so it also uses bsearch and doesn't
6849 *) Modify the way the V3 extension code looks up extensions. This now
6850 works in a similar way to the object code: we have some "standard"
6851 extensions in a static table which is searched with OBJ_bsearch()
6852 and the application can add dynamic ones if needed. The file
6853 crypto/x509v3/ext_dat.h now has the info: this file needs to be
6854 updated whenever a new extension is added to the core code and kept
6855 in ext_nid order. There is a simple program 'tabtest.c' which checks
6856 this. New extensions are not added too often so this file can readily
6857 be maintained manually.
6859 There are two big advantages in doing things this way. The extensions
6860 can be looked up immediately and no longer need to be "added" using
6861 X509V3_add_standard_extensions(): this function now does nothing.
6862 [Side note: I get *lots* of email saying the extension code doesn't
6863 work because people forget to call this function]
6864 Also no dynamic allocation is done unless new extensions are added:
6865 so if we don't add custom extensions there is no need to call
6866 X509V3_EXT_cleanup().
6869 *) Modify enc utility's salting as follows: make salting the default. Add a
6870 magic header, so unsalted files fail gracefully instead of just decrypting
6871 to garbage. This is because not salting is a big security hole, so people
6872 should be discouraged from doing it.
6875 *) Fixes and enhancements to the 'x509' utility. It allowed a message
6876 digest to be passed on the command line but it only used this
6877 parameter when signing a certificate. Modified so all relevant
6878 operations are affected by the digest parameter including the
6879 -fingerprint and -x509toreq options. Also -x509toreq choked if a
6880 DSA key was used because it didn't fix the digest.
6883 *) Initial certificate chain verify code. Currently tests the untrusted
6884 certificates for consistency with the verify purpose (which is set
6885 when the X509_STORE_CTX structure is set up) and checks the pathlength.
6887 There is a NO_CHAIN_VERIFY compilation option to keep the old behaviour:
6888 this is because it will reject chains with invalid extensions whereas
6889 every previous version of OpenSSL and SSLeay made no checks at all.
6891 Trust code: checks the root CA for the relevant trust settings. Trust
6892 settings have an initial value consistent with the verify purpose: e.g.
6893 if the verify purpose is for SSL client use it expects the CA to be
6894 trusted for SSL client use. However the default value can be changed to
6895 permit custom trust settings: one example of this would be to only trust
6896 certificates from a specific "secure" set of CAs.
6898 Also added X509_STORE_CTX_new() and X509_STORE_CTX_free() functions
6899 which should be used for version portability: especially since the
6900 verify structure is likely to change more often now.
6902 SSL integration. Add purpose and trust to SSL_CTX and SSL and functions
6903 to set them. If not set then assume SSL clients will verify SSL servers
6906 Two new options to the verify program: -untrusted allows a set of
6907 untrusted certificates to be passed in and -purpose which sets the
6908 intended purpose of the certificate. If a purpose is set then the
6909 new chain verify code is used to check extension consistency.
6912 *) Support for the authority information access extension.
6915 *) Modify RSA and DSA PEM read routines to transparently handle
6916 PKCS#8 format private keys. New *_PUBKEY_* functions that handle
6917 public keys in a format compatible with certificate
6918 SubjectPublicKeyInfo structures. Unfortunately there were already
6919 functions called *_PublicKey_* which used various odd formats so
6920 these are retained for compatibility: however the DSA variants were
6921 never in a public release so they have been deleted. Changed dsa/rsa
6922 utilities to handle the new format: note no releases ever handled public
6923 keys so we should be OK.
6925 The primary motivation for this change is to avoid the same fiasco
6926 that dogs private keys: there are several incompatible private key
6927 formats some of which are standard and some OpenSSL specific and
6928 require various evil hacks to allow partial transparent handling and
6929 even then it doesn't work with DER formats. Given the option anything
6930 other than PKCS#8 should be dumped: but the other formats have to
6931 stay in the name of compatibility.
6933 With public keys and the benefit of hindsight one standard format
6934 is used which works with EVP_PKEY, RSA or DSA structures: though
6935 it clearly returns an error if you try to read the wrong kind of key.
6937 Added a -pubkey option to the 'x509' utility to output the public key.
6938 Also rename the EVP_PKEY_get_*() to EVP_PKEY_rget_*()
6939 (renamed to EVP_PKEY_get1_*() in the OpenSSL 0.9.5 release) and add
6940 EVP_PKEY_rset_*() functions (renamed to EVP_PKEY_set1_*())
6941 that do the same as the EVP_PKEY_assign_*() except they up the
6942 reference count of the added key (they don't "swallow" the
6946 *) Fixes to crypto/x509/by_file.c the code to read in certificates and
6947 CRLs would fail if the file contained no certificates or no CRLs:
6948 added a new function to read in both types and return the number
6949 read: this means that if none are read it will be an error. The
6950 DER versions of the certificate and CRL reader would always fail
6951 because it isn't possible to mix certificates and CRLs in DER format
6952 without choking one or the other routine. Changed this to just read
6953 a certificate: this is the best we can do. Also modified the code
6954 in apps/verify.c to take notice of return codes: it was previously
6955 attempting to read in certificates from NULL pointers and ignoring
6956 any errors: this is one reason why the cert and CRL reader seemed
6957 to work. It doesn't check return codes from the default certificate
6958 routines: these may well fail if the certificates aren't installed.
6961 *) Code to support otherName option in GeneralName.
6964 *) First update to verify code. Change the verify utility
6965 so it warns if it is passed a self signed certificate:
6966 for consistency with the normal behaviour. X509_verify
6967 has been modified to it will now verify a self signed
6968 certificate if *exactly* the same certificate appears
6969 in the store: it was previously impossible to trust a
6970 single self signed certificate. This means that:
6971 openssl verify ss.pem
6972 now gives a warning about a self signed certificate but
6973 openssl verify -CAfile ss.pem ss.pem
6977 *) For servers, store verify_result in SSL_SESSION data structure
6978 (and add it to external session representation).
6979 This is needed when client certificate verifications fails,
6980 but an application-provided verification callback (set by
6981 SSL_CTX_set_cert_verify_callback) allows accepting the session
6982 anyway (i.e. leaves x509_store_ctx->error != X509_V_OK
6983 but returns 1): When the session is reused, we have to set
6984 ssl->verify_result to the appropriate error code to avoid
6986 [Bodo Moeller, problem pointed out by Lutz Jaenicke]
6988 *) Fix a bug in the new PKCS#7 code: it didn't consider the
6989 case in PKCS7_dataInit() where the signed PKCS7 structure
6990 didn't contain any existing data because it was being created.
6991 [Po-Cheng Chen <pocheng@nst.com.tw>, slightly modified by Steve Henson]
6993 *) Add a salt to the key derivation routines in enc.c. This
6994 forms the first 8 bytes of the encrypted file. Also add a
6995 -S option to allow a salt to be input on the command line.
6998 *) New function X509_cmp(). Oddly enough there wasn't a function
6999 to compare two certificates. We do this by working out the SHA1
7000 hash and comparing that. X509_cmp() will be needed by the trust
7004 *) SSL_get1_session() is like SSL_get_session(), but increments
7005 the reference count in the SSL_SESSION returned.
7006 [Geoff Thorpe <geoff@eu.c2.net>]
7008 *) Fix for 'req': it was adding a null to request attributes.
7009 Also change the X509_LOOKUP and X509_INFO code to handle
7010 certificate auxiliary information.
7013 *) Add support for 40 and 64 bit RC2 and RC4 algorithms: document
7017 *) Add the possibility to add extra information to the memory leak
7018 detecting output, to form tracebacks, showing from where each
7019 allocation was originated: CRYPTO_push_info("constant string") adds
7020 the string plus current file name and line number to a per-thread
7021 stack, CRYPTO_pop_info() does the obvious, CRYPTO_remove_all_info()
7022 is like calling CYRPTO_pop_info() until the stack is empty.
7023 Also updated memory leak detection code to be multi-thread-safe.
7026 *) Add options -text and -noout to pkcs7 utility and delete the
7027 encryption options which never did anything. Update docs.
7030 *) Add options to some of the utilities to allow the pass phrase
7031 to be included on either the command line (not recommended on
7032 OSes like Unix) or read from the environment. Update the
7033 manpages and fix a few bugs.
7036 *) Add a few manpages for some of the openssl commands.
7039 *) Fix the -revoke option in ca. It was freeing up memory twice,
7040 leaking and not finding already revoked certificates.
7043 *) Extensive changes to support certificate auxiliary information.
7044 This involves the use of X509_CERT_AUX structure and X509_AUX
7045 functions. An X509_AUX function such as PEM_read_X509_AUX()
7046 can still read in a certificate file in the usual way but it
7047 will also read in any additional "auxiliary information". By
7048 doing things this way a fair degree of compatibility can be
7049 retained: existing certificates can have this information added
7050 using the new 'x509' options.
7052 Current auxiliary information includes an "alias" and some trust
7053 settings. The trust settings will ultimately be used in enhanced
7054 certificate chain verification routines: currently a certificate
7055 can only be trusted if it is self signed and then it is trusted
7059 *) Fix assembler for Alpha (tested only on DEC OSF not Linux or *BSD).
7060 The problem was that one of the replacement routines had not been working
7061 since SSLeay releases. For now the offending routine has been replaced
7062 with non-optimised assembler. Even so, this now gives around 95%
7063 performance improvement for 1024 bit RSA signs.
7066 *) Hack to fix PKCS#7 decryption when used with some unorthodox RC2
7067 handling. Most clients have the effective key size in bits equal to
7068 the key length in bits: so a 40 bit RC2 key uses a 40 bit (5 byte) key.
7069 A few however don't do this and instead use the size of the decrypted key
7070 to determine the RC2 key length and the AlgorithmIdentifier to determine
7071 the effective key length. In this case the effective key length can still
7072 be 40 bits but the key length can be 168 bits for example. This is fixed
7073 by manually forcing an RC2 key into the EVP_PKEY structure because the
7074 EVP code can't currently handle unusual RC2 key sizes: it always assumes
7075 the key length and effective key length are equal.
7078 *) Add a bunch of functions that should simplify the creation of
7079 X509_NAME structures. Now you should be able to do:
7080 X509_NAME_add_entry_by_txt(nm, "CN", MBSTRING_ASC, "Steve", -1, -1, 0);
7081 and have it automatically work out the correct field type and fill in
7082 the structures. The more adventurous can try:
7083 X509_NAME_add_entry_by_txt(nm, field, MBSTRING_UTF8, str, -1, -1, 0);
7084 and it will (hopefully) work out the correct multibyte encoding.
7087 *) Change the 'req' utility to use the new field handling and multibyte
7088 copy routines. Before the DN field creation was handled in an ad hoc
7089 way in req, ca, and x509 which was rather broken and didn't support
7090 BMPStrings or UTF8Strings. Since some software doesn't implement
7091 BMPStrings or UTF8Strings yet, they can be enabled using the config file
7092 using the dirstring_type option. See the new comment in the default
7093 openssl.cnf for more info.
7096 *) Make crypto/rand/md_rand.c more robust:
7097 - Assure unique random numbers after fork().
7098 - Make sure that concurrent threads access the global counter and
7099 md serializably so that we never lose entropy in them
7100 or use exactly the same state in multiple threads.
7101 Access to the large state is not always serializable because
7102 the additional locking could be a performance killer, and
7103 md should be large enough anyway.
7106 *) New file apps/app_rand.c with commonly needed functionality
7107 for handling the random seed file.
7109 Use the random seed file in some applications that previously did not:
7111 dsaparam -genkey (which also ignored its '-rand' option),
7114 x509 (when signing).
7115 Except on systems with /dev/urandom, it is crucial to have a random
7116 seed file at least for key creation, DSA signing, and for DH exchanges;
7117 for RSA signatures we could do without one.
7119 gendh and gendsa (unlike genrsa) used to read only the first byte
7120 of each file listed in the '-rand' option. The function as previously
7121 found in genrsa is now in app_rand.c and is used by all programs
7122 that support '-rand'.
7125 *) In RAND_write_file, use mode 0600 for creating files;
7126 don't just chmod when it may be too late.
7129 *) Report an error from X509_STORE_load_locations
7130 when X509_LOOKUP_load_file or X509_LOOKUP_add_dir failed.
7133 *) New function ASN1_mbstring_copy() this copies a string in either
7134 ASCII, Unicode, Universal (4 bytes per character) or UTF8 format
7135 into an ASN1_STRING type. A mask of permissible types is passed
7136 and it chooses the "minimal" type to use or an error if not type
7140 *) Add function equivalents to the various macros in asn1.h. The old
7141 macros are retained with an M_ prefix. Code inside the library can
7142 use the M_ macros. External code (including the openssl utility)
7143 should *NOT* in order to be "shared library friendly".
7146 *) Add various functions that can check a certificate's extensions
7147 to see if it usable for various purposes such as SSL client,
7148 server or S/MIME and CAs of these types. This is currently
7149 VERY EXPERIMENTAL but will ultimately be used for certificate chain
7150 verification. Also added a -purpose flag to x509 utility to
7151 print out all the purposes.
7154 *) Add a CRYPTO_EX_DATA to X509 certificate structure and associated
7158 *) New X509V3_{X509,CRL,REVOKED}_get_d2i() functions. These will search
7159 for, obtain and decode and extension and obtain its critical flag.
7160 This allows all the necessary extension code to be handled in a
7161 single function call.
7164 *) RC4 tune-up featuring 30-40% performance improvement on most RISC
7165 platforms. See crypto/rc4/rc4_enc.c for further details.
7168 *) New -noout option to asn1parse. This causes no output to be produced
7169 its main use is when combined with -strparse and -out to extract data
7170 from a file (which may not be in ASN.1 format).
7173 *) Fix for pkcs12 program. It was hashing an invalid certificate pointer
7174 when producing the local key id.
7175 [Richard Levitte <levitte@stacken.kth.se>]
7177 *) New option -dhparam in s_server. This allows a DH parameter file to be
7178 stated explicitly. If it is not stated then it tries the first server
7179 certificate file. The previous behaviour hard coded the filename
7183 *) Add -pubin and -pubout options to the rsa and dsa commands. These allow
7184 a public key to be input or output. For example:
7185 openssl rsa -in key.pem -pubout -out pubkey.pem
7186 Also added necessary DSA public key functions to handle this.
7189 *) Fix so PKCS7_dataVerify() doesn't crash if no certificates are contained
7190 in the message. This was handled by allowing
7191 X509_find_by_issuer_and_serial() to tolerate a NULL passed to it.
7192 [Steve Henson, reported by Sampo Kellomaki <sampo@mail.neuronio.pt>]
7194 *) Fix for bug in d2i_ASN1_bytes(): other ASN1 functions add an extra null
7195 to the end of the strings whereas this didn't. This would cause problems
7196 if strings read with d2i_ASN1_bytes() were later modified.
7197 [Steve Henson, reported by Arne Ansper <arne@ats.cyber.ee>]
7199 *) Fix for base64 decode bug. When a base64 bio reads only one line of
7200 data and it contains EOF it will end up returning an error. This is
7201 caused by input 46 bytes long. The cause is due to the way base64
7202 BIOs find the start of base64 encoded data. They do this by trying a
7203 trial decode on each line until they find one that works. When they
7204 do a flag is set and it starts again knowing it can pass all the
7205 data directly through the decoder. Unfortunately it doesn't reset
7206 the context it uses. This means that if EOF is reached an attempt
7207 is made to pass two EOFs through the context and this causes the
7208 resulting error. This can also cause other problems as well. As is
7209 usual with these problems it takes *ages* to find and the fix is
7210 trivial: move one line.
7211 [Steve Henson, reported by ian@uns.ns.ac.yu (Ivan Nejgebauer) ]
7213 *) Ugly workaround to get s_client and s_server working under Windows. The
7214 old code wouldn't work because it needed to select() on sockets and the
7215 tty (for keypresses and to see if data could be written). Win32 only
7216 supports select() on sockets so we select() with a 1s timeout on the
7217 sockets and then see if any characters are waiting to be read, if none
7218 are present then we retry, we also assume we can always write data to
7219 the tty. This isn't nice because the code then blocks until we've
7220 received a complete line of data and it is effectively polling the
7221 keyboard at 1s intervals: however it's quite a bit better than not
7222 working at all :-) A dedicated Windows application might handle this
7223 with an event loop for example.
7226 *) Enhance RSA_METHOD structure. Now there are two extra methods, rsa_sign
7227 and rsa_verify. When the RSA_FLAGS_SIGN_VER option is set these functions
7228 will be called when RSA_sign() and RSA_verify() are used. This is useful
7229 if rsa_pub_dec() and rsa_priv_enc() equivalents are not available.
7230 For this to work properly RSA_public_decrypt() and RSA_private_encrypt()
7231 should *not* be used: RSA_sign() and RSA_verify() must be used instead.
7232 This necessitated the support of an extra signature type NID_md5_sha1
7233 for SSL signatures and modifications to the SSL library to use it instead
7234 of calling RSA_public_decrypt() and RSA_private_encrypt().
7237 *) Add new -verify -CAfile and -CApath options to the crl program, these
7238 will lookup a CRL issuers certificate and verify the signature in a
7239 similar way to the verify program. Tidy up the crl program so it
7240 no longer accesses structures directly. Make the ASN1 CRL parsing a bit
7241 less strict. It will now permit CRL extensions even if it is not
7242 a V2 CRL: this will allow it to tolerate some broken CRLs.
7245 *) Initialize all non-automatic variables each time one of the openssl
7246 sub-programs is started (this is necessary as they may be started
7247 multiple times from the "OpenSSL>" prompt).
7248 [Lennart Bang, Bodo Moeller]
7250 *) Preliminary compilation option RSA_NULL which disables RSA crypto without
7251 removing all other RSA functionality (this is what NO_RSA does). This
7252 is so (for example) those in the US can disable those operations covered
7253 by the RSA patent while allowing storage and parsing of RSA keys and RSA
7257 *) Non-copying interface to BIO pairs.
7258 (still largely untested)
7261 *) New function ANS1_tag2str() to convert an ASN1 tag to a descriptive
7262 ASCII string. This was handled independently in various places before.
7265 *) New functions UTF8_getc() and UTF8_putc() that parse and generate
7266 UTF8 strings a character at a time.
7269 *) Use client_version from client hello to select the protocol
7270 (s23_srvr.c) and for RSA client key exchange verification
7271 (s3_srvr.c), as required by the SSL 3.0/TLS 1.0 specifications.
7274 *) Add various utility functions to handle SPKACs, these were previously
7275 handled by poking round in the structure internals. Added new function
7276 NETSCAPE_SPKI_print() to print out SPKAC and a new utility 'spkac' to
7277 print, verify and generate SPKACs. Based on an original idea from
7278 Massimiliano Pala <madwolf@comune.modena.it> but extensively modified.
7281 *) RIPEMD160 is operational on all platforms and is back in 'make test'.
7284 *) Allow the config file extension section to be overwritten on the
7285 command line. Based on an original idea from Massimiliano Pala
7286 <madwolf@comune.modena.it>. The new option is called -extensions
7287 and can be applied to ca, req and x509. Also -reqexts to override
7288 the request extensions in req and -crlexts to override the crl extensions
7292 *) Add new feature to the SPKAC handling in ca. Now you can include
7293 the same field multiple times by preceding it by "XXXX." for example:
7296 this is the same syntax as used in the req config file.
7299 *) Allow certificate extensions to be added to certificate requests. These
7300 are specified in a 'req_extensions' option of the req section of the
7301 config file. They can be printed out with the -text option to req but
7302 are otherwise ignored at present.
7305 *) Fix a horrible bug in enc_read() in crypto/evp/bio_enc.c: if the first
7306 data read consists of only the final block it would not decrypted because
7307 EVP_CipherUpdate() would correctly report zero bytes had been decrypted.
7308 A misplaced 'break' also meant the decrypted final block might not be
7309 copied until the next read.
7312 *) Initial support for DH_METHOD. Again based on RSA_METHOD. Also added
7313 a few extra parameters to the DH structure: these will be useful if
7314 for example we want the value of 'q' or implement X9.42 DH.
7317 *) Initial support for DSA_METHOD. This is based on the RSA_METHOD and
7318 provides hooks that allow the default DSA functions or functions on a
7319 "per key" basis to be replaced. This allows hardware acceleration and
7320 hardware key storage to be handled without major modification to the
7321 library. Also added low level modexp hooks and CRYPTO_EX structure and
7322 associated functions.
7325 *) Add a new flag to memory BIOs, BIO_FLAG_MEM_RDONLY. This marks the BIO
7326 as "read only": it can't be written to and the buffer it points to will
7327 not be freed. Reading from a read only BIO is much more efficient than
7328 a normal memory BIO. This was added because there are several times when
7329 an area of memory needs to be read from a BIO. The previous method was
7330 to create a memory BIO and write the data to it, this results in two
7331 copies of the data and an O(n^2) reading algorithm. There is a new
7332 function BIO_new_mem_buf() which creates a read only memory BIO from
7333 an area of memory. Also modified the PKCS#7 routines to use read only
7337 *) Bugfix: ssl23_get_client_hello did not work properly when called in
7338 state SSL23_ST_SR_CLNT_HELLO_B, i.e. when the first 7 bytes of
7339 a SSLv2-compatible client hello for SSLv3 or TLSv1 could be read,
7340 but a retry condition occured while trying to read the rest.
7343 *) The PKCS7_ENC_CONTENT_new() function was setting the content type as
7344 NID_pkcs7_encrypted by default: this was wrong since this should almost
7345 always be NID_pkcs7_data. Also modified the PKCS7_set_type() to handle
7346 the encrypted data type: this is a more sensible place to put it and it
7347 allows the PKCS#12 code to be tidied up that duplicated this
7351 *) Changed obj_dat.pl script so it takes its input and output files on
7352 the command line. This should avoid shell escape redirection problems
7356 *) Initial support for certificate extension requests, these are included
7357 in things like Xenroll certificate requests. Included functions to allow
7358 extensions to be obtained and added.
7361 *) -crlf option to s_client and s_server for sending newlines as
7362 CRLF (as required by many protocols).
7365 Changes between 0.9.3a and 0.9.4 [09 Aug 1999]
7367 *) Install libRSAglue.a when OpenSSL is built with RSAref.
7368 [Ralf S. Engelschall]
7370 *) A few more ``#ifndef NO_FP_API / #endif'' pairs for consistency.
7371 [Andrija Antonijevic <TheAntony2@bigfoot.com>]
7373 *) Fix -startdate and -enddate (which was missing) arguments to 'ca'
7377 *) New function DSA_dup_DH, which duplicates DSA parameters/keys as
7378 DH parameters/keys (q is lost during that conversion, but the resulting
7379 DH parameters contain its length).
7381 For 1024-bit p, DSA_generate_parameters followed by DSA_dup_DH is
7382 much faster than DH_generate_parameters (which creates parameters
7383 where p = 2*q + 1), and also the smaller q makes DH computations
7384 much more efficient (160-bit exponentiation instead of 1024-bit
7385 exponentiation); so this provides a convenient way to support DHE
7386 ciphersuites in SSL/TLS servers (see ssl/ssltest.c). It is of
7387 utter importance to use
7388 SSL_CTX_set_options(s_ctx, SSL_OP_SINGLE_DH_USE);
7390 SSL_set_options(s_ctx, SSL_OP_SINGLE_DH_USE);
7391 when such DH parameters are used, because otherwise small subgroup
7392 attacks may become possible!
7395 *) Avoid memory leak in i2d_DHparams.
7398 *) Allow the -k option to be used more than once in the enc program:
7399 this allows the same encrypted message to be read by multiple recipients.
7402 *) New function OBJ_obj2txt(buf, buf_len, a, no_name), this converts
7403 an ASN1_OBJECT to a text string. If the "no_name" parameter is set then
7404 it will always use the numerical form of the OID, even if it has a short
7408 *) Added an extra RSA flag: RSA_FLAG_EXT_PKEY. Previously the rsa_mod_exp
7409 method only got called if p,q,dmp1,dmq1,iqmp components were present,
7410 otherwise bn_mod_exp was called. In the case of hardware keys for example
7411 no private key components need be present and it might store extra data
7412 in the RSA structure, which cannot be accessed from bn_mod_exp.
7413 By setting RSA_FLAG_EXT_PKEY rsa_mod_exp will always be called for
7414 private key operations.
7417 *) Added support for SPARC Linux.
7420 *) pem_password_cb function type incompatibly changed from
7421 typedef int pem_password_cb(char *buf, int size, int rwflag);
7423 ....(char *buf, int size, int rwflag, void *userdata);
7424 so that applications can pass data to their callbacks:
7425 The PEM[_ASN1]_{read,write}... functions and macros now take an
7426 additional void * argument, which is just handed through whenever
7427 the password callback is called.
7428 [Damien Miller <dmiller@ilogic.com.au>; tiny changes by Bodo Moeller]
7430 New function SSL_CTX_set_default_passwd_cb_userdata.
7432 Compatibility note: As many C implementations push function arguments
7433 onto the stack in reverse order, the new library version is likely to
7434 interoperate with programs that have been compiled with the old
7435 pem_password_cb definition (PEM_whatever takes some data that
7436 happens to be on the stack as its last argument, and the callback
7437 just ignores this garbage); but there is no guarantee whatsoever that
7440 *) The -DPLATFORM="\"$(PLATFORM)\"" definition and the similar -DCFLAGS=...
7441 (both in crypto/Makefile.ssl for use by crypto/cversion.c) caused
7442 problems not only on Windows, but also on some Unix platforms.
7443 To avoid problematic command lines, these definitions are now in an
7444 auto-generated file crypto/buildinf.h (created by crypto/Makefile.ssl
7445 for standard "make" builds, by util/mk1mf.pl for "mk1mf" builds).
7448 *) MIPS III/IV assembler module is reimplemented.
7451 *) More DES library cleanups: remove references to srand/rand and
7452 delete an unused file.
7455 *) Add support for the the free Netwide assembler (NASM) under Win32,
7456 since not many people have MASM (ml) and it can be hard to obtain.
7457 This is currently experimental but it seems to work OK and pass all
7458 the tests. Check out INSTALL.W32 for info.
7461 *) Fix memory leaks in s3_clnt.c: All non-anonymous SSL3/TLS1 connections
7462 without temporary keys kept an extra copy of the server key,
7463 and connections with temporary keys did not free everything in case
7467 *) New function RSA_check_key and new openssl rsa option -check
7468 for verifying the consistency of RSA keys.
7469 [Ulf Moeller, Bodo Moeller]
7471 *) Various changes to make Win32 compile work:
7472 1. Casts to avoid "loss of data" warnings in p5_crpt2.c
7473 2. Change unsigned int to int in b_dump.c to avoid "signed/unsigned
7474 comparison" warnings.
7475 3. Add sk_<TYPE>_sort to DEF file generator and do make update.
7478 *) Add a debugging option to PKCS#5 v2 key generation function: when
7479 you #define DEBUG_PKCS5V2 passwords, salts, iteration counts and
7480 derived keys are printed to stderr.
7483 *) Copy the flags in ASN1_STRING_dup().
7484 [Roman E. Pavlov <pre@mo.msk.ru>]
7486 *) The x509 application mishandled signing requests containing DSA
7487 keys when the signing key was also DSA and the parameters didn't match.
7489 It was supposed to omit the parameters when they matched the signing key:
7490 the verifying software was then supposed to automatically use the CA's
7491 parameters if they were absent from the end user certificate.
7493 Omitting parameters is no longer recommended. The test was also
7494 the wrong way round! This was probably due to unusual behaviour in
7495 EVP_cmp_parameters() which returns 1 if the parameters match.
7496 This meant that parameters were omitted when they *didn't* match and
7497 the certificate was useless. Certificates signed with 'ca' didn't have
7499 [Steve Henson, reported by Doug Erickson <Doug.Erickson@Part.NET>]
7501 *) Memory leak checking (-DCRYPTO_MDEBUG) had some problems.
7502 The interface is as follows:
7503 Applications can use
7504 CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_ON) aka MemCheck_start(),
7505 CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_OFF) aka MemCheck_stop();
7506 "off" is now the default.
7507 The library internally uses
7508 CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_DISABLE) aka MemCheck_off(),
7509 CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_ENABLE) aka MemCheck_on()
7510 to disable memory-checking temporarily.
7512 Some inconsistent states that previously were possible (and were
7513 even the default) are now avoided.
7515 -DCRYPTO_MDEBUG_TIME is new and additionally stores the current time
7516 with each memory chunk allocated; this is occasionally more helpful
7517 than just having a counter.
7519 -DCRYPTO_MDEBUG_THREAD is also new and adds the thread ID.
7521 -DCRYPTO_MDEBUG_ALL enables all of the above, plus any future
7525 *) Introduce "mode" for SSL structures (with defaults in SSL_CTX),
7526 which largely parallels "options", but is for changing API behaviour,
7527 whereas "options" are about protocol behaviour.
7528 Initial "mode" flags are:
7530 SSL_MODE_ENABLE_PARTIAL_WRITE Allow SSL_write to report success when
7531 a single record has been written.
7532 SSL_MODE_ACCEPT_MOVING_WRITE_BUFFER Don't insist that SSL_write
7533 retries use the same buffer location.
7534 (But all of the contents must be
7538 *) Bugfix: SSL_set_options ignored its parameter, only SSL_CTX_set_options
7541 *) Fix problems with no-hmac etc.
7542 [Ulf Möller, pointed out by Brian Wellington <bwelling@tislabs.com>]
7544 *) New functions RSA_get_default_method(), RSA_set_method() and
7545 RSA_get_method(). These allows replacement of RSA_METHODs without having
7546 to mess around with the internals of an RSA structure.
7549 *) Fix memory leaks in DSA_do_sign and DSA_is_prime.
7550 Also really enable memory leak checks in openssl.c and in some
7552 [Chad C. Mulligan, Bodo Moeller]
7554 *) Fix a bug in d2i_ASN1_INTEGER() and i2d_ASN1_INTEGER() which can mess
7555 up the length of negative integers. This has now been simplified to just
7556 store the length when it is first determined and use it later, rather
7557 than trying to keep track of where data is copied and updating it to
7559 [Steve Henson, reported by Brien Wheeler
7560 <bwheeler@authentica-security.com>]
7562 *) Add a new function PKCS7_signatureVerify. This allows the verification
7563 of a PKCS#7 signature but with the signing certificate passed to the
7564 function itself. This contrasts with PKCS7_dataVerify which assumes the
7565 certificate is present in the PKCS#7 structure. This isn't always the
7566 case: certificates can be omitted from a PKCS#7 structure and be
7567 distributed by "out of band" means (such as a certificate database).
7570 *) Complete the PEM_* macros with DECLARE_PEM versions to replace the
7571 function prototypes in pem.h, also change util/mkdef.pl to add the
7572 necessary function names.
7575 *) mk1mf.pl (used by Windows builds) did not properly read the
7576 options set by Configure in the top level Makefile, and Configure
7577 was not even able to write more than one option correctly.
7578 Fixed, now "no-idea no-rc5 -DCRYPTO_MDEBUG" etc. works as intended.
7581 *) New functions CONF_load_bio() and CONF_load_fp() to allow a config
7582 file to be loaded from a BIO or FILE pointer. The BIO version will
7583 for example allow memory BIOs to contain config info.
7586 *) New function "CRYPTO_num_locks" that returns CRYPTO_NUM_LOCKS.
7587 Whoever hopes to achieve shared-library compatibility across versions
7588 must use this, not the compile-time macro.
7589 (Exercise 0.9.4: Which is the minimum library version required by
7591 Note: All this applies only to multi-threaded programs, others don't
7595 *) Add missing case to s3_clnt.c state machine -- one of the new SSL tests
7596 through a BIO pair triggered the default case, i.e.
7597 SSLerr(...,SSL_R_UNKNOWN_STATE).
7600 *) New "BIO pair" concept (crypto/bio/bss_bio.c) so that applications
7601 can use the SSL library even if none of the specific BIOs is
7605 *) Fix a bug in i2d_DSAPublicKey() which meant it returned the wrong value
7606 for the encoded length.
7607 [Jeon KyoungHo <khjeon@sds.samsung.co.kr>]
7609 *) Add initial documentation of the X509V3 functions.
7612 *) Add a new pair of functions PEM_write_PKCS8PrivateKey() and
7613 PEM_write_bio_PKCS8PrivateKey() that are equivalent to
7614 PEM_write_PrivateKey() and PEM_write_bio_PrivateKey() but use the more
7615 secure PKCS#8 private key format with a high iteration count.
7618 *) Fix determination of Perl interpreter: A perl or perl5
7619 _directory_ in $PATH was also accepted as the interpreter.
7620 [Ralf S. Engelschall]
7622 *) Fix demos/sign/sign.c: well there wasn't anything strictly speaking
7623 wrong with it but it was very old and did things like calling
7624 PEM_ASN1_read() directly and used MD5 for the hash not to mention some
7628 *) Fix demos/selfsign.c: it used obsolete and deleted functions, changed
7629 to use the new extension code.
7632 *) Implement the PEM_read/PEM_write functions in crypto/pem/pem_all.c
7633 with macros. This should make it easier to change their form, add extra
7634 arguments etc. Fix a few PEM prototypes which didn't have cipher as a
7638 *) Add to configuration table a new entry that can specify an alternative
7639 name for unistd.h (for pre-POSIX systems); we need this for NeXTstep,
7640 according to Mark Crispin <MRC@Panda.COM>.
7644 *) DES CBC did not update the IV. Weird.
7647 des_cbc_encrypt does not update the IV, but des_ncbc_encrypt does.
7648 Changing the behaviour of the former might break existing programs --
7649 where IV updating is needed, des_ncbc_encrypt can be used.
7652 *) When bntest is run from "make test" it drives bc to check its
7653 calculations, as well as internally checking them. If an internal check
7654 fails, it needs to cause bc to give a non-zero result or make test carries
7655 on without noticing the failure. Fixed.
7658 *) DES library cleanups.
7661 *) Add support for PKCS#5 v2.0 PBE algorithms. This will permit PKCS#8 to be
7662 used with any cipher unlike PKCS#5 v1.5 which can at most handle 64 bit
7663 ciphers. NOTE: although the key derivation function has been verified
7664 against some published test vectors it has not been extensively tested
7665 yet. Added a -v2 "cipher" option to pkcs8 application to allow the use
7669 *) Instead of "mkdir -p", which is not fully portable, use new
7670 Perl script "util/mkdir-p.pl".
7673 *) Rewrite the way password based encryption (PBE) is handled. It used to
7674 assume that the ASN1 AlgorithmIdentifier parameter was a PBEParameter
7675 structure. This was true for the PKCS#5 v1.5 and PKCS#12 PBE algorithms
7676 but doesn't apply to PKCS#5 v2.0 where it can be something else. Now
7677 the 'parameter' field of the AlgorithmIdentifier is passed to the
7678 underlying key generation function so it must do its own ASN1 parsing.
7679 This has also changed the EVP_PBE_CipherInit() function which now has a
7680 'parameter' argument instead of literal salt and iteration count values
7681 and the function EVP_PBE_ALGOR_CipherInit() has been deleted.
7684 *) Support for PKCS#5 v1.5 compatible password based encryption algorithms
7685 and PKCS#8 functionality. New 'pkcs8' application linked to openssl.
7686 Needed to change the PEM_STRING_EVP_PKEY value which was just "PRIVATE
7687 KEY" because this clashed with PKCS#8 unencrypted string. Since this
7688 value was just used as a "magic string" and not used directly its
7689 value doesn't matter.
7692 *) Introduce some semblance of const correctness to BN. Shame C doesn't
7696 *) "linux-sparc64" configuration (ultrapenguin).
7697 [Ray Miller <ray.miller@oucs.ox.ac.uk>]
7698 "linux-sparc" configuration.
7699 [Christian Forster <fo@hawo.stw.uni-erlangen.de>]
7701 *) config now generates no-xxx options for missing ciphers.
7704 *) Support the EBCDIC character set (work in progress).
7705 File ebcdic.c not yet included because it has a different license.
7706 [Martin Kraemer <Martin.Kraemer@MchP.Siemens.De>]
7708 *) Support BS2000/OSD-POSIX.
7709 [Martin Kraemer <Martin.Kraemer@MchP.Siemens.De>]
7711 *) Make callbacks for key generation use void * instead of char *.
7714 *) Make S/MIME samples compile (not yet tested).
7717 *) Additional typesafe stacks.
7720 *) New configuration variants "bsdi-elf-gcc" (BSD/OS 4.x).
7724 Changes between 0.9.3 and 0.9.3a [29 May 1999]
7726 *) New configuration variant "sco5-gcc".
7728 *) Updated some demos.
7729 [Sean O Riordain, Wade Scholine]
7731 *) Add missing BIO_free at exit of pkcs12 application.
7734 *) Fix memory leak in conf.c.
7737 *) Updates for Win32 to assembler version of MD5.
7740 *) Set #! path to perl in apps/der_chop to where we found it
7741 instead of using a fixed path.
7744 *) SHA library changes for irix64-mips4-cc.
7747 *) Improvements for VMS support.
7751 Changes between 0.9.2b and 0.9.3 [24 May 1999]
7753 *) Bignum library bug fix. IRIX 6 passes "make test" now!
7754 This also avoids the problems with SC4.2 and unpatched SC5.
7755 [Andy Polyakov <appro@fy.chalmers.se>]
7757 *) New functions sk_num, sk_value and sk_set to replace the previous macros.
7758 These are required because of the typesafe stack would otherwise break
7759 existing code. If old code used a structure member which used to be STACK
7760 and is now STACK_OF (for example cert in a PKCS7_SIGNED structure) with
7761 sk_num or sk_value it would produce an error because the num, data members
7762 are not present in STACK_OF. Now it just produces a warning. sk_set
7763 replaces the old method of assigning a value to sk_value
7764 (e.g. sk_value(x, i) = y) which the library used in a few cases. Any code
7765 that does this will no longer work (and should use sk_set instead) but
7766 this could be regarded as a "questionable" behaviour anyway.
7769 *) Fix most of the other PKCS#7 bugs. The "experimental" code can now
7770 correctly handle encrypted S/MIME data.
7773 *) Change type of various DES function arguments from des_cblock
7774 (which means, in function argument declarations, pointer to char)
7775 to des_cblock * (meaning pointer to array with 8 char elements),
7776 which allows the compiler to do more typechecking; it was like
7777 that back in SSLeay, but with lots of ugly casts.
7779 Introduce new type const_des_cblock.
7782 *) Reorganise the PKCS#7 library and get rid of some of the more obvious
7783 problems: find RecipientInfo structure that matches recipient certificate
7784 and initialise the ASN1 structures properly based on passed cipher.
7787 *) Belatedly make the BN tests actually check the results.
7790 *) Fix the encoding and decoding of negative ASN1 INTEGERS and conversion
7791 to and from BNs: it was completely broken. New compilation option
7792 NEG_PUBKEY_BUG to allow for some broken certificates that encode public
7793 key elements as negative integers.
7796 *) Reorganize and speed up MD5.
7797 [Andy Polyakov <appro@fy.chalmers.se>]
7800 [Richard Levitte <richard@levitte.org>]
7802 *) New option -out to asn1parse to allow the parsed structure to be
7803 output to a file. This is most useful when combined with the -strparse
7804 option to examine the output of things like OCTET STRINGS.
7807 *) Make SSL library a little more fool-proof by not requiring any longer
7808 that SSL_set_{accept,connect}_state be called before
7809 SSL_{accept,connect} may be used (SSL_set_..._state is omitted
7810 in many applications because usually everything *appeared* to work as
7811 intended anyway -- now it really works as intended).
7814 *) Move openssl.cnf out of lib/.
7817 *) Fix various things to let OpenSSL even pass ``egcc -pipe -O2 -Wall
7818 -Wshadow -Wpointer-arith -Wcast-align -Wmissing-prototypes
7819 -Wmissing-declarations -Wnested-externs -Winline'' with EGCS 1.1.2+
7820 [Ralf S. Engelschall]
7822 *) Various fixes to the EVP and PKCS#7 code. It may now be able to
7823 handle PKCS#7 enveloped data properly.
7824 [Sebastian Akerman <sak@parallelconsulting.com>, modified by Steve]
7826 *) Create a duplicate of the SSL_CTX's CERT in SSL_new instead of
7827 copying pointers. The cert_st handling is changed by this in
7828 various ways (and thus what used to be known as ctx->default_cert
7829 is now called ctx->cert, since we don't resort to s->ctx->[default_]cert
7830 any longer when s->cert does not give us what we need).
7831 ssl_cert_instantiate becomes obsolete by this change.
7832 As soon as we've got the new code right (possibly it already is?),
7833 we have solved a couple of bugs of the earlier code where s->cert
7834 was used as if it could not have been shared with other SSL structures.
7836 Note that using the SSL API in certain dirty ways now will result
7837 in different behaviour than observed with earlier library versions:
7838 Changing settings for an SSL_CTX *ctx after having done s = SSL_new(ctx)
7839 does not influence s as it used to.
7841 In order to clean up things more thoroughly, inside SSL_SESSION
7842 we don't use CERT any longer, but a new structure SESS_CERT
7843 that holds per-session data (if available); currently, this is
7844 the peer's certificate chain and, for clients, the server's certificate
7845 and temporary key. CERT holds only those values that can have
7846 meaningful defaults in an SSL_CTX.
7849 *) New function X509V3_EXT_i2d() to create an X509_EXTENSION structure
7850 from the internal representation. Various PKCS#7 fixes: remove some
7851 evil casts and set the enc_dig_alg field properly based on the signing
7855 *) Allow PKCS#12 password to be set from the command line or the
7856 environment. Let 'ca' get its config file name from the environment
7857 variables "OPENSSL_CONF" or "SSLEAY_CONF" (for consistency with 'req'
7861 *) Allow certificate policies extension to use an IA5STRING for the
7862 organization field. This is contrary to the PKIX definition but
7863 VeriSign uses it and IE5 only recognises this form. Document 'x509'
7867 *) Add PEDANTIC compiler flag to allow compilation with gcc -pedantic,
7868 without disallowing inline assembler and the like for non-pedantic builds.
7871 *) Support Borland C++ builder.
7872 [Janez Jere <jj@void.si>, modified by Ulf Möller]
7877 *) SHA-1 cleanups and performance enhancements.
7878 [Andy Polyakov <appro@fy.chalmers.se>]
7880 *) Sparc v8plus assembler for the bignum library.
7881 [Andy Polyakov <appro@fy.chalmers.se>]
7883 *) Accept any -xxx and +xxx compiler options in Configure.
7886 *) Update HPUX configuration.
7889 *) Add missing sk_<type>_unshift() function to safestack.h
7890 [Ralf S. Engelschall]
7892 *) New function SSL_CTX_use_certificate_chain_file that sets the
7893 "extra_cert"s in addition to the certificate. (This makes sense
7894 only for "PEM" format files, as chains as a whole are not
7898 *) Support verify_depth from the SSL API.
7899 x509_vfy.c had what can be considered an off-by-one-error:
7900 Its depth (which was not part of the external interface)
7901 was actually counting the number of certificates in a chain;
7902 now it really counts the depth.
7905 *) Bugfix in crypto/x509/x509_cmp.c: The SSLerr macro was used
7906 instead of X509err, which often resulted in confusing error
7907 messages since the error codes are not globally unique
7908 (e.g. an alleged error in ssl3_accept when a certificate
7909 didn't match the private key).
7911 *) New function SSL_CTX_set_session_id_context that allows to set a default
7912 value (so that you don't need SSL_set_session_id_context for each
7913 connection using the SSL_CTX).
7916 *) OAEP decoding bug fix.
7919 *) Support INSTALL_PREFIX for package builders, as proposed by
7923 *) New Configure options "threads" and "no-threads". For systems
7924 where the proper compiler options are known (currently Solaris
7925 and Linux), "threads" is the default.
7928 *) New script util/mklink.pl as a faster substitute for util/mklink.sh.
7931 *) Install various scripts to $(OPENSSLDIR)/misc, not to
7932 $(INSTALLTOP)/bin -- they shouldn't clutter directories
7933 such as /usr/local/bin.
7936 *) "make linux-shared" to build shared libraries.
7937 [Niels Poppe <niels@netbox.org>]
7939 *) New Configure option no-<cipher> (rsa, idea, rc5, ...).
7942 *) Add the PKCS#12 API documentation to openssl.txt. Preliminary support for
7943 extension adding in x509 utility.
7946 *) Remove NOPROTO sections and error code comments.
7949 *) Partial rewrite of the DEF file generator to now parse the ANSI
7953 *) New Configure options --prefix=DIR and --openssldir=DIR.
7956 *) Complete rewrite of the error code script(s). It is all now handled
7957 by one script at the top level which handles error code gathering,
7958 header rewriting and C source file generation. It should be much better
7959 than the old method: it now uses a modified version of Ulf's parser to
7960 read the ANSI prototypes in all header files (thus the old K&R definitions
7961 aren't needed for error creation any more) and do a better job of
7962 translating function codes into names. The old 'ASN1 error code imbedded
7963 in a comment' is no longer necessary and it doesn't use .err files which
7964 have now been deleted. Also the error code call doesn't have to appear all
7965 on one line (which resulted in some large lines...).
7968 *) Change #include filenames from <foo.h> to <openssl/foo.h>.
7971 *) Change behaviour of ssl2_read when facing length-0 packets: Don't return
7972 0 (which usually indicates a closed connection), but continue reading.
7975 *) Fix some race conditions.
7978 *) Add support for CRL distribution points extension. Add Certificate
7979 Policies and CRL distribution points documentation.
7982 *) Move the autogenerated header file parts to crypto/opensslconf.h.
7985 *) Fix new 56-bit DES export ciphersuites: they were using 7 bytes instead of
7986 8 of keying material. Merlin has also confirmed interop with this fix
7987 between OpenSSL and Baltimore C/SSL 2.0 and J/SSL 2.0.
7988 [Merlin Hughes <merlin@baltimore.ie>]
7990 *) Fix lots of warnings.
7991 [Richard Levitte <levitte@stacken.kth.se>]
7993 *) In add_cert_dir() in crypto/x509/by_dir.c, break out of the loop if
7994 the directory spec didn't end with a LIST_SEPARATOR_CHAR.
7995 [Richard Levitte <levitte@stacken.kth.se>]
7997 *) Fix problems with sizeof(long) == 8.
7998 [Andy Polyakov <appro@fy.chalmers.se>]
8000 *) Change functions to ANSI C.
8003 *) Fix typos in error codes.
8004 [Martin Kraemer <Martin.Kraemer@MchP.Siemens.De>, Ulf Möller]
8006 *) Remove defunct assembler files from Configure.
8009 *) SPARC v8 assembler BIGNUM implementation.
8010 [Andy Polyakov <appro@fy.chalmers.se>]
8012 *) Support for Certificate Policies extension: both print and set.
8013 Various additions to support the r2i method this uses.
8016 *) A lot of constification, and fix a bug in X509_NAME_oneline() that could
8017 return a const string when you are expecting an allocated buffer.
8020 *) Add support for ASN1 types UTF8String and VISIBLESTRING, also the CHOICE
8021 types DirectoryString and DisplayText.
8024 *) Add code to allow r2i extensions to access the configuration database,
8025 add an LHASH database driver and add several ctx helper functions.
8028 *) Fix an evil bug in bn_expand2() which caused various BN functions to
8029 fail when they extended the size of a BIGNUM.
8032 *) Various utility functions to handle SXNet extension. Modify mkdef.pl to
8033 support typesafe stack.
8036 *) Fix typo in SSL_[gs]et_options().
8037 [Nils Frostberg <nils@medcom.se>]
8039 *) Delete various functions and files that belonged to the (now obsolete)
8040 old X509V3 handling code.
8043 *) New Configure option "rsaref".
8046 *) Don't auto-generate pem.h.
8049 *) Introduce type-safe ASN.1 SETs.
8052 *) Convert various additional casted stacks to type-safe STACK_OF() variants.
8053 [Ben Laurie, Ralf S. Engelschall, Steve Henson]
8055 *) Introduce type-safe STACKs. This will almost certainly break lots of code
8056 that links with OpenSSL (well at least cause lots of warnings), but fear
8057 not: the conversion is trivial, and it eliminates loads of evil casts. A
8058 few STACKed things have been converted already. Feel free to convert more.
8059 In the fullness of time, I'll do away with the STACK type altogether.
8062 *) Add `openssl ca -revoke <certfile>' facility which revokes a certificate
8063 specified in <certfile> by updating the entry in the index.txt file.
8064 This way one no longer has to edit the index.txt file manually for
8065 revoking a certificate. The -revoke option does the gory details now.
8066 [Massimiliano Pala <madwolf@openca.org>, Ralf S. Engelschall]
8068 *) Fix `openssl crl -noout -text' combination where `-noout' killed the
8069 `-text' option at all and this way the `-noout -text' combination was
8070 inconsistent in `openssl crl' with the friends in `openssl x509|rsa|dsa'.
8071 [Ralf S. Engelschall]
8073 *) Make sure a corresponding plain text error message exists for the
8074 X509_V_ERR_CERT_REVOKED/23 error number which can occur when a
8075 verify callback function determined that a certificate was revoked.
8076 [Ralf S. Engelschall]
8078 *) Bugfix: In test/testenc, don't test "openssl <cipher>" for
8079 ciphers that were excluded, e.g. by -DNO_IDEA. Also, test
8080 all available cipers including rc5, which was forgotten until now.
8081 In order to let the testing shell script know which algorithms
8082 are available, a new (up to now undocumented) command
8083 "openssl list-cipher-commands" is used.
8086 *) Bugfix: s_client occasionally would sleep in select() when
8087 it should have checked SSL_pending() first.
8090 *) New functions DSA_do_sign and DSA_do_verify to provide access to
8091 the raw DSA values prior to ASN.1 encoding.
8094 *) Tweaks to Configure
8095 [Niels Poppe <niels@netbox.org>]
8097 *) Add support for PKCS#5 v2.0 ASN1 PBES2 structures. No other support,
8101 *) New variables $(RANLIB) and $(PERL) in the Makefiles.
8104 *) New config option to avoid instructions that are illegal on the 80386.
8105 The default code is faster, but requires at least a 486.
8108 *) Got rid of old SSL2_CLIENT_VERSION (inconsistently used) and
8109 SSL2_SERVER_VERSION (not used at all) macros, which are now the
8110 same as SSL2_VERSION anyway.
8113 *) New "-showcerts" option for s_client.
8116 *) Still more PKCS#12 integration. Add pkcs12 application to openssl
8117 application. Various cleanups and fixes.
8120 *) More PKCS#12 integration. Add new pkcs12 directory with Makefile.ssl and
8121 modify error routines to work internally. Add error codes and PBE init
8122 to library startup routines.
8125 *) Further PKCS#12 integration. Added password based encryption, PKCS#8 and
8126 packing functions to asn1 and evp. Changed function names and error
8127 codes along the way.
8130 *) PKCS12 integration: and so it begins... First of several patches to
8131 slowly integrate PKCS#12 functionality into OpenSSL. Add PKCS#12
8132 objects to objects.h
8135 *) Add a new 'indent' option to some X509V3 extension code. Initial ASN1
8136 and display support for Thawte strong extranet extension.
8139 *) Add LinuxPPC support.
8140 [Jeff Dubrule <igor@pobox.org>]
8142 *) Get rid of redundant BN file bn_mulw.c, and rename bn_div64 to
8143 bn_div_words in alpha.s.
8144 [Hannes Reinecke <H.Reinecke@hw.ac.uk> and Ben Laurie]
8146 *) Make sure the RSA OAEP test is skipped under -DRSAref because
8147 OAEP isn't supported when OpenSSL is built with RSAref.
8148 [Ulf Moeller <ulf@fitug.de>]
8150 *) Move definitions of IS_SET/IS_SEQUENCE inside crypto/asn1/asn1.h
8151 so they no longer are missing under -DNOPROTO.
8152 [Soren S. Jorvang <soren@t.dk>]
8155 Changes between 0.9.1c and 0.9.2b [22 Mar 1999]
8157 *) Make SSL_get_peer_cert_chain() work in servers. Unfortunately, it still
8158 doesn't work when the session is reused. Coming soon!
8161 *) Fix a security hole, that allows sessions to be reused in the wrong
8162 context thus bypassing client cert protection! All software that uses
8163 client certs and session caches in multiple contexts NEEDS PATCHING to
8164 allow session reuse! A fuller solution is in the works.
8165 [Ben Laurie, problem pointed out by Holger Reif, Bodo Moeller (and ???)]
8167 *) Some more source tree cleanups (removed obsolete files
8168 crypto/bf/asm/bf586.pl, test/test.txt and crypto/sha/asm/f.s; changed
8169 permission on "config" script to be executable) and a fix for the INSTALL
8171 [Ulf Moeller <ulf@fitug.de>]
8173 *) Remove some legacy and erroneous uses of malloc, free instead of
8175 [Lennart Bang <lob@netstream.se>, with minor changes by Steve]
8177 *) Make rsa_oaep_test return non-zero on error.
8178 [Ulf Moeller <ulf@fitug.de>]
8180 *) Add support for native Solaris shared libraries. Configure
8181 solaris-sparc-sc4-pic, make, then run shlib/solaris-sc4.sh. It'd be nice
8182 if someone would make that last step automatic.
8183 [Matthias Loepfe <Matthias.Loepfe@AdNovum.CH>]
8185 *) ctx_size was not built with the right compiler during "make links". Fixed.
8188 *) Change the meaning of 'ALL' in the cipher list. It now means "everything
8189 except NULL ciphers". This means the default cipher list will no longer
8190 enable NULL ciphers. They need to be specifically enabled e.g. with
8191 the string "DEFAULT:eNULL".
8194 *) Fix to RSA private encryption routines: if p < q then it would
8195 occasionally produce an invalid result. This will only happen with
8196 externally generated keys because OpenSSL (and SSLeay) ensure p > q.
8199 *) Be less restrictive and allow also `perl util/perlpath.pl
8200 /path/to/bin/perl' in addition to `perl util/perlpath.pl /path/to/bin',
8201 because this way one can also use an interpreter named `perl5' (which is
8202 usually the name of Perl 5.xxx on platforms where an Perl 4.x is still
8203 installed as `perl').
8204 [Matthias Loepfe <Matthias.Loepfe@adnovum.ch>]
8206 *) Let util/clean-depend.pl work also with older Perl 5.00x versions.
8207 [Matthias Loepfe <Matthias.Loepfe@adnovum.ch>]
8209 *) Fix Makefile.org so CC,CFLAG etc are passed to 'make links' add
8210 advapi32.lib to Win32 build and change the pem test comparision
8211 to fc.exe (thanks to Ulrich Kroener <kroneru@yahoo.com> for the
8212 suggestion). Fix misplaced ASNI prototypes and declarations in evp.h
8213 and crypto/des/ede_cbcm_enc.c.
8216 *) DES quad checksum was broken on big-endian architectures. Fixed.
8219 *) Comment out two functions in bio.h that aren't implemented. Fix up the
8220 Win32 test batch file so it (might) work again. The Win32 test batch file
8221 is horrible: I feel ill....
8224 *) Move various #ifdefs around so NO_SYSLOG, NO_DIRENT etc are now selected
8225 in e_os.h. Audit of header files to check ANSI and non ANSI
8226 sections: 10 functions were absent from non ANSI section and not exported
8227 from Windows DLLs. Fixed up libeay.num for new functions.
8230 *) Make `openssl version' output lines consistent.
8231 [Ralf S. Engelschall]
8233 *) Fix Win32 symbol export lists for BIO functions: Added
8234 BIO_get_ex_new_index, BIO_get_ex_num, BIO_get_ex_data and BIO_set_ex_data
8235 to ms/libeay{16,32}.def.
8236 [Ralf S. Engelschall]
8238 *) Second round of fixing the OpenSSL perl/ stuff. It now at least compiled
8239 fine under Unix and passes some trivial tests I've now added. But the
8240 whole stuff is horribly incomplete, so a README.1ST with a disclaimer was
8241 added to make sure no one expects that this stuff really works in the
8242 OpenSSL 0.9.2 release. Additionally I've started to clean the XS sources
8243 up and fixed a few little bugs and inconsistencies in OpenSSL.{pm,xs} and
8245 [Ralf S. Engelschall]
8247 *) Fix the generation of two part addresses in perl.
8248 [Kenji Miyake <kenji@miyake.org>, integrated by Ben Laurie]
8250 *) Add config entry for Linux on MIPS.
8251 [John Tobey <jtobey@channel1.com>]
8253 *) Make links whenever Configure is run, unless we are on Windoze.
8256 *) Permit extensions to be added to CRLs using crl_section in openssl.cnf.
8257 Currently only issuerAltName and AuthorityKeyIdentifier make any sense
8261 *) Add a useful kludge to allow package maintainers to specify compiler and
8262 other platforms details on the command line without having to patch the
8263 Configure script everytime: One now can use ``perl Configure
8264 <id>:<details>'', i.e. platform ids are allowed to have details appended
8265 to them (seperated by colons). This is treated as there would be a static
8266 pre-configured entry in Configure's %table under key <id> with value
8267 <details> and ``perl Configure <id>'' is called. So, when you want to
8268 perform a quick test-compile under FreeBSD 3.1 with pgcc and without
8269 assembler stuff you can use ``perl Configure "FreeBSD-elf:pgcc:-O6:::"''
8270 now, which overrides the FreeBSD-elf entry on-the-fly.
8271 [Ralf S. Engelschall]
8273 *) Disable new TLS1 ciphersuites by default: they aren't official yet.
8276 *) Allow DSO flags like -fpic, -fPIC, -KPIC etc. to be specified
8277 on the `perl Configure ...' command line. This way one can compile
8278 OpenSSL libraries with Position Independent Code (PIC) which is needed
8279 for linking it into DSOs.
8280 [Ralf S. Engelschall]
8282 *) Remarkably, export ciphers were totally broken and no-one had noticed!
8286 *) Cleaned up the LICENSE document: The official contact for any license
8287 questions now is the OpenSSL core team under openssl-core@openssl.org.
8288 And add a paragraph about the dual-license situation to make sure people
8289 recognize that _BOTH_ the OpenSSL license _AND_ the SSLeay license apply
8290 to the OpenSSL toolkit.
8291 [Ralf S. Engelschall]
8293 *) General source tree makefile cleanups: Made `making xxx in yyy...'
8294 display consistent in the source tree and replaced `/bin/rm' by `rm'.
8295 Additonally cleaned up the `make links' target: Remove unnecessary
8296 semicolons, subsequent redundant removes, inline point.sh into mklink.sh
8297 to speed processing and no longer clutter the display with confusing
8298 stuff. Instead only the actually done links are displayed.
8299 [Ralf S. Engelschall]
8301 *) Permit null encryption ciphersuites, used for authentication only. It used
8302 to be necessary to set the preprocessor define SSL_ALLOW_ENULL to do this.
8303 It is now necessary to set SSL_FORBID_ENULL to prevent the use of null
8307 *) Add a bunch of fixes to the PKCS#7 stuff. It used to sometimes reorder
8308 signed attributes when verifying signatures (this would break them),
8309 the detached data encoding was wrong and public keys obtained using
8310 X509_get_pubkey() weren't freed.
8313 *) Add text documentation for the BUFFER functions. Also added a work around
8314 to a Win95 console bug. This was triggered by the password read stuff: the
8315 last character typed gets carried over to the next fread(). If you were
8316 generating a new cert request using 'req' for example then the last
8317 character of the passphrase would be CR which would then enter the first
8321 *) Added the new `Includes OpenSSL Cryptography Software' button as
8322 doc/openssl_button.{gif,html} which is similar in style to the old SSLeay
8323 button and can be used by applications based on OpenSSL to show the
8324 relationship to the OpenSSL project.
8325 [Ralf S. Engelschall]
8327 *) Remove confusing variables in function signatures in files
8328 ssl/ssl_lib.c and ssl/ssl.h.
8329 [Lennart Bong <lob@kulthea.stacken.kth.se>]
8331 *) Don't install bss_file.c under PREFIX/include/
8332 [Lennart Bong <lob@kulthea.stacken.kth.se>]
8334 *) Get the Win32 compile working again. Modify mkdef.pl so it can handle
8335 functions that return function pointers and has support for NT specific
8336 stuff. Fix mk1mf.pl and VC-32.pl to support NT differences also. Various
8337 #ifdef WIN32 and WINNTs sprinkled about the place and some changes from
8338 unsigned to signed types: this was killing the Win32 compile.
8341 *) Add new certificate file to stack functions,
8342 SSL_add_dir_cert_subjects_to_stack() and
8343 SSL_add_file_cert_subjects_to_stack(). These largely supplant
8344 SSL_load_client_CA_file(), and can be used to add multiple certs easily
8345 to a stack (usually this is then handed to SSL_CTX_set_client_CA_list()).
8346 This means that Apache-SSL and similar packages don't have to mess around
8347 to add as many CAs as they want to the preferred list.
8350 *) Experiment with doxygen documentation. Currently only partially applied to
8352 See http://www.stack.nl/~dimitri/doxygen/index.html, and run doxygen with
8353 openssl.doxy as the configuration file.
8356 *) Get rid of remaining C++-style comments which strict C compilers hate.
8357 [Ralf S. Engelschall, pointed out by Carlos Amengual]
8359 *) Changed BN_RECURSION in bn_mont.c to BN_RECURSION_MONT so it is not
8360 compiled in by default: it has problems with large keys.
8363 *) Add a bunch of SSL_xxx() functions for configuring the temporary RSA and
8364 DH private keys and/or callback functions which directly correspond to
8365 their SSL_CTX_xxx() counterparts but work on a per-connection basis. This
8366 is needed for applications which have to configure certificates on a
8367 per-connection basis (e.g. Apache+mod_ssl) instead of a per-context basis
8369 For the RSA certificate situation is makes no difference, but
8370 for the DSA certificate situation this fixes the "no shared cipher"
8371 problem where the OpenSSL cipher selection procedure failed because the
8372 temporary keys were not overtaken from the context and the API provided
8373 no way to reconfigure them.
8374 The new functions now let applications reconfigure the stuff and they
8375 are in detail: SSL_need_tmp_RSA, SSL_set_tmp_rsa, SSL_set_tmp_dh,
8376 SSL_set_tmp_rsa_callback and SSL_set_tmp_dh_callback. Additionally a new
8377 non-public-API function ssl_cert_instantiate() is used as a helper
8378 function and also to reduce code redundancy inside ssl_rsa.c.
8379 [Ralf S. Engelschall]
8381 *) Move s_server -dcert and -dkey options out of the undocumented feature
8382 area because they are useful for the DSA situation and should be
8383 recognized by the users.
8384 [Ralf S. Engelschall]
8386 *) Fix the cipher decision scheme for export ciphers: the export bits are
8387 *not* within SSL_MKEY_MASK or SSL_AUTH_MASK, they are within
8388 SSL_EXP_MASK. So, the original variable has to be used instead of the
8389 already masked variable.
8390 [Richard Levitte <levitte@stacken.kth.se>]
8392 *) Fix 'port' variable from `int' to `unsigned int' in crypto/bio/b_sock.c
8393 [Richard Levitte <levitte@stacken.kth.se>]
8395 *) Change type of another md_len variable in pk7_doit.c:PKCS7_dataFinal()
8396 from `int' to `unsigned int' because it's a length and initialized by
8397 EVP_DigestFinal() which expects an `unsigned int *'.
8398 [Richard Levitte <levitte@stacken.kth.se>]
8400 *) Don't hard-code path to Perl interpreter on shebang line of Configure
8401 script. Instead use the usual Shell->Perl transition trick.
8402 [Ralf S. Engelschall]
8404 *) Make `openssl x509 -noout -modulus' functional also for DSA certificates
8405 (in addition to RSA certificates) to match the behaviour of `openssl dsa
8406 -noout -modulus' as it's already the case for `openssl rsa -noout
8407 -modulus'. For RSA the -modulus is the real "modulus" while for DSA
8408 currently the public key is printed (a decision which was already done by
8409 `openssl dsa -modulus' in the past) which serves a similar purpose.
8410 Additionally the NO_RSA no longer completely removes the whole -modulus
8411 option; it now only avoids using the RSA stuff. Same applies to NO_DSA
8413 [Ralf S. Engelschall]
8415 *) Add Arne Ansper's reliable BIO - this is an encrypted, block-digested
8416 BIO. See the source (crypto/evp/bio_ok.c) for more info.
8417 [Arne Ansper <arne@ats.cyber.ee>]
8419 *) Dump the old yucky req code that tried (and failed) to allow raw OIDs
8420 to be added. Now both 'req' and 'ca' can use new objects defined in the
8424 *) Add cool BIO that does syslog (or event log on NT).
8425 [Arne Ansper <arne@ats.cyber.ee>, integrated by Ben Laurie]
8427 *) Add support for new TLS ciphersuites, TLS_RSA_EXPORT56_WITH_RC4_56_MD5,
8428 TLS_RSA_EXPORT56_WITH_RC2_CBC_56_MD5 and
8429 TLS_RSA_EXPORT56_WITH_DES_CBC_SHA, as specified in "56-bit Export Cipher
8430 Suites For TLS", draft-ietf-tls-56-bit-ciphersuites-00.txt.
8433 *) Add preliminary config info for new extension code.
8436 *) Make RSA_NO_PADDING really use no padding.
8437 [Ulf Moeller <ulf@fitug.de>]
8439 *) Generate errors when private/public key check is done.
8442 *) Overhaul for 'crl' utility. New function X509_CRL_print. Partial support
8443 for some CRL extensions and new objects added.
8446 *) Really fix the ASN1 IMPLICIT bug this time... Partial support for private
8447 key usage extension and fuller support for authority key id.
8450 *) Add OAEP encryption for the OpenSSL crypto library. OAEP is the improved
8451 padding method for RSA, which is recommended for new applications in PKCS
8452 #1 v2.0 (RFC 2437, October 1998).
8453 OAEP (Optimal Asymmetric Encryption Padding) has better theoretical
8454 foundations than the ad-hoc padding used in PKCS #1 v1.5. It is secure
8455 against Bleichbacher's attack on RSA.
8456 [Ulf Moeller <ulf@fitug.de>, reformatted, corrected and integrated by
8459 *) Updates to the new SSL compression code
8460 [Eric A. Young, (from changes to C2Net SSLeay, integrated by Mark Cox)]
8462 *) Fix so that the version number in the master secret, when passed
8463 via RSA, checks that if TLS was proposed, but we roll back to SSLv3
8464 (because the server will not accept higher), that the version number
8465 is 0x03,0x01, not 0x03,0x00
8466 [Eric A. Young, (from changes to C2Net SSLeay, integrated by Mark Cox)]
8468 *) Run extensive memory leak checks on SSL apps. Fixed *lots* of memory
8469 leaks in ssl/ relating to new X509_get_pubkey() behaviour. Also fixes
8470 in apps/ and an unrelated leak in crypto/dsa/dsa_vrf.c
8473 *) Support for RAW extensions where an arbitrary extension can be
8474 created by including its DER encoding. See apps/openssl.cnf for
8478 *) Make sure latest Perl versions don't interpret some generated C array
8479 code as Perl array code in the crypto/err/err_genc.pl script.
8480 [Lars Weber <3weber@informatik.uni-hamburg.de>]
8482 *) Modify ms/do_ms.bat to not generate assembly language makefiles since
8483 not many people have the assembler. Various Win32 compilation fixes and
8484 update to the INSTALL.W32 file with (hopefully) more accurate Win32
8488 *) Modify configure script 'Configure' to automatically create crypto/date.h
8489 file under Win32 and also build pem.h from pem.org. New script
8490 util/mkfiles.pl to create the MINFO file on environments that can't do a
8491 'make files': perl util/mkfiles.pl >MINFO should work.
8494 *) Major rework of DES function declarations, in the pursuit of correctness
8495 and purity. As a result, many evil casts evaporated, and some weirdness,
8496 too. You may find this causes warnings in your code. Zapping your evil
8497 casts will probably fix them. Mostly.
8500 *) Fix for a typo in asn1.h. Bug fix to object creation script
8501 obj_dat.pl. It considered a zero in an object definition to mean
8502 "end of object": none of the objects in objects.h have any zeros
8503 so it wasn't spotted.
8504 [Steve Henson, reported by Erwann ABALEA <eabalea@certplus.com>]
8506 *) Add support for Triple DES Cipher Block Chaining with Output Feedback
8507 Masking (CBCM). In the absence of test vectors, the best I have been able
8508 to do is check that the decrypt undoes the encrypt, so far. Send me test
8509 vectors if you have them.
8512 *) Correct calculation of key length for export ciphers (too much space was
8513 allocated for null ciphers). This has not been tested!
8516 *) Modifications to the mkdef.pl for Win32 DEF file creation. The usage
8517 message is now correct (it understands "crypto" and "ssl" on its
8518 command line). There is also now an "update" option. This will update
8519 the util/ssleay.num and util/libeay.num files with any new functions.
8521 perl util/mkdef.pl crypto ssl update
8522 it will update them.
8525 *) Overhauled the Perl interface (perl/*):
8526 - ported BN stuff to OpenSSL's different BN library
8527 - made the perl/ source tree CVS-aware
8528 - renamed the package from SSLeay to OpenSSL (the files still contain
8529 their history because I've copied them in the repository)
8530 - removed obsolete files (the test scripts will be replaced
8531 by better Test::Harness variants in the future)
8532 [Ralf S. Engelschall]
8534 *) First cut for a very conservative source tree cleanup:
8535 1. merge various obsolete readme texts into doc/ssleay.txt
8536 where we collect the old documents and readme texts.
8537 2. remove the first part of files where I'm already sure that we no
8538 longer need them because of three reasons: either they are just temporary
8539 files which were left by Eric or they are preserved original files where
8540 I've verified that the diff is also available in the CVS via "cvs diff
8541 -rSSLeay_0_8_1b" or they were renamed (as it was definitely the case for
8542 the crypto/md/ stuff).
8543 [Ralf S. Engelschall]
8545 *) More extension code. Incomplete support for subject and issuer alt
8546 name, issuer and authority key id. Change the i2v function parameters
8547 and add an extra 'crl' parameter in the X509V3_CTX structure: guess
8548 what that's for :-) Fix to ASN1 macro which messed up
8549 IMPLICIT tag and add f_enum.c which adds a2i, i2a for ENUMERATED.
8552 *) Preliminary support for ENUMERATED type. This is largely copied from the
8556 *) Add new function, EVP_MD_CTX_copy() to replace frequent use of memcpy.
8557 [Eric A. Young, (from changes to C2Net SSLeay, integrated by Mark Cox)]
8559 *) Make sure `make rehash' target really finds the `openssl' program.
8560 [Ralf S. Engelschall, Matthias Loepfe <Matthias.Loepfe@adnovum.ch>]
8562 *) Squeeze another 7% of speed out of MD5 assembler, at least on a P2. I'd
8563 like to hear about it if this slows down other processors.
8566 *) Add CygWin32 platform information to Configure script.
8567 [Alan Batie <batie@aahz.jf.intel.com>]
8569 *) Fixed ms/32all.bat script: `no_asm' -> `no-asm'
8570 [Rainer W. Gerling <gerling@mpg-gv.mpg.de>]
8572 *) New program nseq to manipulate netscape certificate sequences
8575 *) Modify crl2pkcs7 so it supports multiple -certfile arguments. Fix a
8579 *) Fixes to BN code. Previously the default was to define BN_RECURSION
8580 but the BN code had some problems that would cause failures when
8581 doing certificate verification and some other functions.
8582 [Eric A. Young, (from changes to C2Net SSLeay, integrated by Mark Cox)]
8584 *) Add ASN1 and PEM code to support netscape certificate sequences.
8587 *) Add ASN1 and PEM code to support netscape certificate sequences.
8590 *) Add several PKIX and private extended key usage OIDs.
8593 *) Modify the 'ca' program to handle the new extension code. Modify
8594 openssl.cnf for new extension format, add comments.
8597 *) More X509 V3 changes. Fix typo in v3_bitstr.c. Add support to 'req'
8598 and add a sample to openssl.cnf so req -x509 now adds appropriate
8602 *) Continued X509 V3 changes. Add to other makefiles, integrate with the
8603 error code, add initial support to X509_print() and x509 application.
8606 *) Takes a deep breath and start addding X509 V3 extension support code. Add
8607 files in crypto/x509v3. Move original stuff to crypto/x509v3/old. All this
8608 stuff is currently isolated and isn't even compiled yet.
8611 *) Continuing patches for GeneralizedTime. Fix up certificate and CRL
8612 ASN1 to use ASN1_TIME and modify print routines to use ASN1_TIME_print.
8613 Removed the versions check from X509 routines when loading extensions:
8614 this allows certain broken certificates that don't set the version
8615 properly to be processed.
8618 *) Deal with irritating shit to do with dependencies, in YAAHW (Yet Another
8619 Ad Hoc Way) - Makefile.ssls now all contain local dependencies, which
8620 can still be regenerated with "make depend".
8623 *) Spelling mistake in C version of CAST-128.
8624 [Ben Laurie, reported by Jeremy Hylton <jeremy@cnri.reston.va.us>]
8626 *) Changes to the error generation code. The perl script err-code.pl
8627 now reads in the old error codes and retains the old numbers, only
8628 adding new ones if necessary. It also only changes the .err files if new
8629 codes are added. The makefiles have been modified to only insert errors
8630 when needed (to avoid needlessly modifying header files). This is done
8631 by only inserting errors if the .err file is newer than the auto generated
8632 C file. To rebuild all the error codes from scratch (the old behaviour)
8633 either modify crypto/Makefile.ssl to pass the -regen flag to err_code.pl
8634 or delete all the .err files.
8637 *) CAST-128 was incorrectly implemented for short keys. The C version has
8638 been fixed, but is untested. The assembler versions are also fixed, but
8639 new assembler HAS NOT BEEN GENERATED FOR WIN32 - the Makefile needs fixing
8640 to regenerate it if needed.
8641 [Ben Laurie, reported (with fix for C version) by Jun-ichiro itojun
8642 Hagino <itojun@kame.net>]
8644 *) File was opened incorrectly in randfile.c.
8645 [Ulf Möller <ulf@fitug.de>]
8647 *) Beginning of support for GeneralizedTime. d2i, i2d, check and print
8648 functions. Also ASN1_TIME suite which is a CHOICE of UTCTime or
8649 GeneralizedTime. ASN1_TIME is the proper type used in certificates et
8650 al: it's just almost always a UTCTime. Note this patch adds new error
8651 codes so do a "make errors" if there are problems.
8654 *) Correct Linux 1 recognition in config.
8655 [Ulf Möller <ulf@fitug.de>]
8657 *) Remove pointless MD5 hash when using DSA keys in ca.
8658 [Anonymous <nobody@replay.com>]
8660 *) Generate an error if given an empty string as a cert directory. Also
8661 generate an error if handed NULL (previously returned 0 to indicate an
8662 error, but didn't set one).
8663 [Ben Laurie, reported by Anonymous <nobody@replay.com>]
8665 *) Add prototypes to SSL methods. Make SSL_write's buffer const, at last.
8668 *) Fix the dummy function BN_ref_mod_exp() in rsaref.c to have the correct
8669 parameters. This was causing a warning which killed off the Win32 compile.
8672 *) Remove C++ style comments from crypto/bn/bn_local.h.
8673 [Neil Costigan <neil.costigan@celocom.com>]
8675 *) The function OBJ_txt2nid was broken. It was supposed to return a nid
8676 based on a text string, looking up short and long names and finally
8677 "dot" format. The "dot" format stuff didn't work. Added new function
8678 OBJ_txt2obj to do the same but return an ASN1_OBJECT and rewrote
8679 OBJ_txt2nid to use it. OBJ_txt2obj can also return objects even if the
8680 OID is not part of the table.
8683 *) Add prototypes to X509 lookup/verify methods, fixing a bug in
8684 X509_LOOKUP_by_alias().
8687 *) Sort openssl functions by name.
8690 *) Get the gendsa program working (hopefully) and add it to app list. Remove
8691 encryption from sample DSA keys (in case anyone is interested the password
8695 *) Make _all_ *_free functions accept a NULL pointer.
8696 [Frans Heymans <fheymans@isaserver.be>]
8698 *) If a DH key is generated in s3_srvr.c, don't blow it by trying to use
8700 [Anonymous <nobody@replay.com>]
8702 *) s_server should send the CAfile as acceptable CAs, not its own cert.
8703 [Bodo Moeller <3moeller@informatik.uni-hamburg.de>]
8705 *) Don't blow it for numeric -newkey arguments to apps/req.
8706 [Bodo Moeller <3moeller@informatik.uni-hamburg.de>]
8708 *) Temp key "for export" tests were wrong in s3_srvr.c.
8709 [Anonymous <nobody@replay.com>]
8711 *) Add prototype for temp key callback functions
8712 SSL_CTX_set_tmp_{rsa,dh}_callback().
8715 *) Make DH_free() tolerate being passed a NULL pointer (like RSA_free() and
8716 DSA_free()). Make X509_PUBKEY_set() check for errors in d2i_PublicKey().
8719 *) X509_name_add_entry() freed the wrong thing after an error.
8720 [Arne Ansper <arne@ats.cyber.ee>]
8722 *) rsa_eay.c would attempt to free a NULL context.
8723 [Arne Ansper <arne@ats.cyber.ee>]
8725 *) BIO_s_socket() had a broken should_retry() on Windoze.
8726 [Arne Ansper <arne@ats.cyber.ee>]
8728 *) BIO_f_buffer() didn't pass on BIO_CTRL_FLUSH.
8729 [Arne Ansper <arne@ats.cyber.ee>]
8731 *) Make sure the already existing X509_STORE->depth variable is initialized
8732 in X509_STORE_new(), but document the fact that this variable is still
8733 unused in the certificate verification process.
8734 [Ralf S. Engelschall]
8736 *) Fix the various library and apps files to free up pkeys obtained from
8737 X509_PUBKEY_get() et al. Also allow x509.c to handle netscape extensions.
8740 *) Fix reference counting in X509_PUBKEY_get(). This makes
8741 demos/maurice/example2.c work, amongst others, probably.
8742 [Steve Henson and Ben Laurie]
8744 *) First cut of a cleanup for apps/. First the `ssleay' program is now named
8745 `openssl' and second, the shortcut symlinks for the `openssl <command>'
8746 are no longer created. This way we have a single and consistent command
8747 line interface `openssl <command>', similar to `cvs <command>'.
8748 [Ralf S. Engelschall, Paul Sutton and Ben Laurie]
8750 *) ca.c: move test for DSA keys inside #ifndef NO_DSA. Make pubkey
8751 BIT STRING wrapper always have zero unused bits.
8754 *) Add CA.pl, perl version of CA.sh, add extended key usage OID.
8757 *) Make the top-level INSTALL documentation easier to understand.
8760 *) Makefiles updated to exit if an error occurs in a sub-directory
8761 make (including if user presses ^C) [Paul Sutton]
8763 *) Make Montgomery context stuff explicit in RSA data structure.
8766 *) Fix build order of pem and err to allow for generated pem.h.
8769 *) Fix renumbering bug in X509_NAME_delete_entry().
8772 *) Enhanced the err-ins.pl script so it makes the error library number
8773 global and can add a library name. This is needed for external ASN1 and
8774 other error libraries.
8777 *) Fixed sk_insert which never worked properly.
8780 *) Fix ASN1 macros so they can handle indefinite length construted
8781 EXPLICIT tags. Some non standard certificates use these: they can now
8785 *) Merged the various old/obsolete SSLeay documentation files (doc/xxx.doc)
8786 into a single doc/ssleay.txt bundle. This way the information is still
8787 preserved but no longer messes up this directory. Now it's new room for
8788 the new set of documenation files.
8789 [Ralf S. Engelschall]
8791 *) SETs were incorrectly DER encoded. This was a major pain, because they
8792 shared code with SEQUENCEs, which aren't coded the same. This means that
8793 almost everything to do with SETs or SEQUENCEs has either changed name or
8794 number of arguments.
8795 [Ben Laurie, based on a partial fix by GP Jayan <gp@nsj.co.jp>]
8797 *) Fix test data to work with the above.
8800 *) Fix the RSA header declarations that hid a bug I fixed in 0.9.0b but
8801 was already fixed by Eric for 0.9.1 it seems.
8802 [Ben Laurie - pointed out by Ulf Möller <ulf@fitug.de>]
8804 *) Autodetect FreeBSD3.
8807 *) Fix various bugs in Configure. This affects the following platforms:
8811 unixware-2.0-pentium
8815 *) Eliminate generated files from CVS. Reorder tests to regenerate files
8816 before they are needed.
8819 *) Generate Makefile.ssl from Makefile.org (to keep CVS happy).
8823 Changes between 0.9.1b and 0.9.1c [23-Dec-1998]
8825 *) Added OPENSSL_VERSION_NUMBER to crypto/crypto.h and
8826 changed SSLeay to OpenSSL in version strings.
8827 [Ralf S. Engelschall]
8829 *) Some fixups to the top-level documents.
8832 *) Fixed the nasty bug where rsaref.h was not found under compile-time
8833 because the symlink to include/ was missing.
8834 [Ralf S. Engelschall]
8836 *) Incorporated the popular no-RSA/DSA-only patches
8837 which allow to compile a RSA-free SSLeay.
8838 [Andrew Cooke / Interrader Ldt., Ralf S. Engelschall]
8840 *) Fixed nasty rehash problem under `make -f Makefile.ssl links'
8841 when "ssleay" is still not found.
8842 [Ralf S. Engelschall]
8844 *) Added more platforms to Configure: Cray T3E, HPUX 11,
8845 [Ralf S. Engelschall, Beckmann <beckman@acl.lanl.gov>]
8847 *) Updated the README file.
8848 [Ralf S. Engelschall]
8850 *) Added various .cvsignore files in the CVS repository subdirs
8851 to make a "cvs update" really silent.
8852 [Ralf S. Engelschall]
8854 *) Recompiled the error-definition header files and added
8855 missing symbols to the Win32 linker tables.
8856 [Ralf S. Engelschall]
8858 *) Cleaned up the top-level documents;
8859 o new files: CHANGES and LICENSE
8860 o merged VERSION, HISTORY* and README* files a CHANGES.SSLeay
8861 o merged COPYRIGHT into LICENSE
8862 o removed obsolete TODO file
8863 o renamed MICROSOFT to INSTALL.W32
8864 [Ralf S. Engelschall]
8866 *) Removed dummy files from the 0.9.1b source tree:
8867 crypto/asn1/x crypto/bio/cd crypto/bio/fg crypto/bio/grep crypto/bio/vi
8868 crypto/bn/asm/......add.c crypto/bn/asm/a.out crypto/dsa/f crypto/md5/f
8869 crypto/pem/gmon.out crypto/perlasm/f crypto/pkcs7/build crypto/rsa/f
8870 crypto/sha/asm/f crypto/threads/f ms/zzz ssl/f ssl/f.mak test/f
8871 util/f.mak util/pl/f util/pl/f.mak crypto/bf/bf_locl.old apps/f
8872 [Ralf S. Engelschall]
8874 *) Added various platform portability fixes.
8877 *) The Genesis of the OpenSSL rpject:
8878 We start with the latest (unreleased) SSLeay version 0.9.1b which Eric A.
8879 Young and Tim J. Hudson created while they were working for C2Net until
8881 [The OpenSSL Project]
8884 Changes between 0.9.0b and 0.9.1b [not released]
8886 *) Updated a few CA certificates under certs/
8889 *) Changed some BIGNUM api stuff.
8892 *) Various platform ports: OpenBSD, Ultrix, IRIX 64bit, NetBSD,
8893 DGUX x86, Linux Alpha, etc.
8896 *) New COMP library [crypto/comp/] for SSL Record Layer Compression:
8897 RLE (dummy implemented) and ZLIB (really implemented when ZLIB is
8901 *) Add -strparse option to asn1pars program which parses nested
8903 [Dr Stephen Henson <shenson@bigfoot.com>]
8905 *) Added "oid_file" to ssleay.cnf for "ca" and "req" programs.
8908 *) DSA fix for "ca" program.
8911 *) Added "-genkey" option to "dsaparam" program.
8914 *) Added RIPE MD160 (rmd160) message digest.
8917 *) Added -a (all) option to "ssleay version" command.
8920 *) Added PLATFORM define which is the id given to Configure.
8923 *) Added MemCheck_XXXX functions to crypto/mem.c for memory checking.
8926 *) Extended the ASN.1 parser routines.
8929 *) Extended BIO routines to support REUSEADDR, seek, tell, etc.
8932 *) Added a BN_CTX to the BN library.
8935 *) Fixed the weak key values in DES library
8938 *) Changed API in EVP library for cipher aliases.
8941 *) Added support for RC2/64bit cipher.
8944 *) Converted the lhash library to the crypto/mem.c functions.
8947 *) Added more recognized ASN.1 object ids.
8950 *) Added more RSA padding checks for SSL/TLS.
8953 *) Added BIO proxy/filter functionality.
8956 *) Added extra_certs to SSL_CTX which can be used
8957 send extra CA certificates to the client in the CA cert chain sending
8958 process. It can be configured with SSL_CTX_add_extra_chain_cert().
8961 *) Now Fortezza is denied in the authentication phase because
8962 this is key exchange mechanism is not supported by SSLeay at all.
8965 *) Additional PKCS1 checks.
8968 *) Support the string "TLSv1" for all TLS v1 ciphers.
8971 *) Added function SSL_get_ex_data_X509_STORE_CTX_idx() which gives the
8972 ex_data index of the SSL context in the X509_STORE_CTX ex_data.
8975 *) Fixed a few memory leaks.
8978 *) Fixed various code and comment typos.
8981 *) A minor bug in ssl/s3_clnt.c where there would always be 4 0
8982 bytes sent in the client random.
8983 [Edward Bishop <ebishop@spyglass.com>]
projects / oweals / openssl.git / blob