5 Changes between 0.9.8i and 0.9.9 [xx XXX xxxx]
7 *) Support for freshest CRL extension.
9 This work was sponsored by Google.
12 *) Initial indirect CRL support. Currently only supported in the CRLs
13 passed directly and not via lookup. Process certificate issuer
14 CRL entry extension and lookup CRL entries by bother issuer name
15 and serial number. Check and proces CRL issuer entry in IDP extension.
17 This work was sponsored by Google.
20 *) Add support for distinct certificate and CRL paths. The CRL issuer
21 certificate is validated separately in this case. Only enabled if
22 an extended CRL support flag is set: this flag will enable additional
23 CRL functionality in future.
25 This work was sponsored by Google.
28 *) Add support for policy mappings extension.
30 This work was sponsored by Google.
33 *) Fixes to pathlength constraint, self issued certificate handling,
34 policy processing to align with RFC3280 and PKITS tests.
36 This work was sponsored by Google.
39 *) Support for name constraints certificate extension. DN, email, DNS
40 and URI types are currently supported.
42 This work was sponsored by Google.
45 *) To cater for systems that provide a pointer-based thread ID rather
46 than numeric, deprecate the current numeric thread ID mechanism and
47 replace it with a structure and associated callback type. This
48 mechanism allows a numeric "hash" to be extracted from a thread ID in
49 either case, and on platforms where pointers are larger than 'long',
50 mixing is done to help ensure the numeric 'hash' is usable even if it
51 can't be guaranteed unique. The default mechanism is to use "&errno"
52 as a pointer-based thread ID to distinguish between threads.
54 Applications that want to provide their own thread IDs should now use
55 CRYPTO_THREADID_set_callback() to register a callback that will call
56 either CRYPTO_THREADID_set_numeric() or CRYPTO_THREADID_set_pointer().
58 Note that ERR_remove_state() is now deprecated, because it is tied
59 to the assumption that thread IDs are numeric. ERR_remove_state(0)
60 to free the current thread's error state should be replaced by
61 ERR_remove_thread_state(NULL).
63 (This new approach replaces the functions CRYPTO_set_idptr_callback(),
64 CRYPTO_get_idptr_callback(), and CRYPTO_thread_idptr() that existed in
65 OpenSSL 0.9.9-dev between June 2006 and August 2008. Also, if an
66 application was previously providing a numeric thread callback that
67 was inappropriate for distinguishing threads, then uniqueness might
68 have been obtained with &errno that happened immediately in the
69 intermediate development versions of OpenSSL; this is no longer the
70 case, the numeric thread callback will now override the automatic use
72 [Geoff Thorpe, with help from Bodo Moeller]
74 *) Initial support for different CRL issuing certificates. This covers a
75 simple case where the self issued certificates in the chain exist and
76 the real CRL issuer is higher in the existing chain.
78 This work was sponsored by Google.
81 *) Removed effectively defunct crypto/store from the build.
84 *) Revamp of STACK to provide stronger type-checking. Still to come:
85 TXT_DB, bsearch(?), OBJ_bsearch, qsort, CRYPTO_EX_DATA, ASN1_VALUE,
86 ASN1_STRING, CONF_VALUE.
89 *) Add a new SSL_MODE_RELEASE_BUFFERS mode flag to release unused buffer
90 RAM on SSL connections. This option can save about 34k per idle SSL.
93 *) Revamp of LHASH to provide stronger type-checking. Still to come:
94 STACK, TXT_DB, bsearch, qsort.
97 *) Initial support for Cryptographic Message Syntax (aka CMS) based
98 on RFC3850, RFC3851 and RFC3852. New cms directory and cms utility,
99 support for data, signedData, compressedData, digestedData and
100 encryptedData, envelopedData types included. Scripts to check against
101 RFC4134 examples draft and interop and consistency checks of many
102 content types and variants.
105 *) Add options to enc utility to support use of zlib compression BIO.
108 *) Extend mk1mf to support importing of options and assembly language
109 files from Configure script, currently only included in VC-WIN32.
110 The assembly language rules can now optionally generate the source
111 files from the associated perl scripts.
114 *) Implement remaining functionality needed to support GOST ciphersuites.
115 Interop testing has been performed using CryptoPro implementations.
116 [Victor B. Wagner <vitus@cryptocom.ru>]
118 *) s390x assembler pack.
121 *) ARMv4 assembler pack. ARMv4 refers to v4 and later ISA, not CPU
125 *) Implement Opaque PRF Input TLS extension as specified in
126 draft-rescorla-tls-opaque-prf-input-00.txt. Since this is not an
127 official specification yet and no extension type assignment by
128 IANA exists, this extension (for now) will have to be explicitly
129 enabled when building OpenSSL by providing the extension number
130 to use. For example, specify an option
132 -DTLSEXT_TYPE_opaque_prf_input=0x9527
134 to the "config" or "Configure" script to enable the extension,
135 assuming extension number 0x9527 (which is a completely arbitrary
136 and unofficial assignment based on the MD5 hash of the Internet
137 Draft). Note that by doing so, you potentially lose
138 interoperability with other TLS implementations since these might
139 be using the same extension number for other purposes.
141 SSL_set_tlsext_opaque_prf_input(ssl, src, len) is used to set the
142 opaque PRF input value to use in the handshake. This will create
143 an interal copy of the length-'len' string at 'src', and will
144 return non-zero for success.
146 To get more control and flexibility, provide a callback function
149 SSL_CTX_set_tlsext_opaque_prf_input_callback(ctx, cb)
150 SSL_CTX_set_tlsext_opaque_prf_input_callback_arg(ctx, arg)
154 int (*cb)(SSL *, void *peerinput, size_t len, void *arg);
157 Callback function 'cb' will be called in handshakes, and is
158 expected to use SSL_set_tlsext_opaque_prf_input() as appropriate.
159 Argument 'arg' is for application purposes (the value as given to
160 SSL_CTX_set_tlsext_opaque_prf_input_callback_arg() will directly
161 be provided to the callback function). The callback function
162 has to return non-zero to report success: usually 1 to use opaque
163 PRF input just if possible, or 2 to enforce use of the opaque PRF
164 input. In the latter case, the library will abort the handshake
165 if opaque PRF input is not successfully negotiated.
167 Arguments 'peerinput' and 'len' given to the callback function
168 will always be NULL and 0 in the case of a client. A server will
169 see the client's opaque PRF input through these variables if
170 available (NULL and 0 otherwise). Note that if the server
171 provides an opaque PRF input, the length must be the same as the
172 length of the client's opaque PRF input.
174 Note that the callback function will only be called when creating
175 a new session (session resumption can resume whatever was
176 previously negotiated), and will not be called in SSL 2.0
177 handshakes; thus, SSL_CTX_set_options(ctx, SSL_OP_NO_SSLv2) or
178 SSL_set_options(ssl, SSL_OP_NO_SSLv2) is especially recommended
179 for applications that need to enforce opaque PRF input.
183 *) Update ssl code to support digests other than SHA1+MD5 for handshake
186 [Victor B. Wagner <vitus@cryptocom.ru>]
188 *) Add RFC4507 support to OpenSSL. This includes the corrections in
189 RFC4507bis. The encrypted ticket format is an encrypted encoded
190 SSL_SESSION structure, that way new session features are automatically
193 If a client application caches session in an SSL_SESSION structure
194 support is transparent because tickets are now stored in the encoded
197 The SSL_CTX structure automatically generates keys for ticket
198 protection in servers so again support should be possible
199 with no application modification.
201 If a client or server wishes to disable RFC4507 support then the option
202 SSL_OP_NO_TICKET can be set.
204 Add a TLS extension debugging callback to allow the contents of any client
205 or server extensions to be examined.
207 This work was sponsored by Google.
210 *) Final changes to avoid use of pointer pointer casts in OpenSSL.
211 OpenSSL should now compile cleanly on gcc 4.2
212 [Peter Hartley <pdh@utter.chaos.org.uk>, Steve Henson]
214 *) Update SSL library to use new EVP_PKEY MAC API. Include generic MAC
215 support including streaming MAC support: this is required for GOST
217 [Victor B. Wagner <vitus@cryptocom.ru>, Steve Henson]
219 *) Add option -stream to use PKCS#7 streaming in smime utility. New
220 function i2d_PKCS7_bio_stream() and PEM_write_PKCS7_bio_stream()
221 to output in BER and PEM format.
224 *) Experimental support for use of HMAC via EVP_PKEY interface. This
225 allows HMAC to be handled via the EVP_DigestSign*() interface. The
226 EVP_PKEY "key" in this case is the HMAC key, potentially allowing
227 ENGINE support for HMAC keys which are unextractable. New -mac and
228 -macopt options to dgst utility.
231 *) New option -sigopt to dgst utility. Update dgst to use
232 EVP_Digest{Sign,Verify}*. These two changes make it possible to use
233 alternative signing paramaters such as X9.31 or PSS in the dgst
237 *) Change ssl_cipher_apply_rule(), the internal function that does
238 the work each time a ciphersuite string requests enabling
239 ("foo+bar"), moving ("+foo+bar"), disabling ("-foo+bar", or
240 removing ("!foo+bar") a class of ciphersuites: Now it maintains
241 the order of disabled ciphersuites such that those ciphersuites
242 that most recently went from enabled to disabled not only stay
243 in order with respect to each other, but also have higher priority
244 than other disabled ciphersuites the next time ciphersuites are
247 This means that you can now say, e.g., "PSK:-PSK:HIGH" to enable
248 the same ciphersuites as with "HIGH" alone, but in a specific
249 order where the PSK ciphersuites come first (since they are the
250 most recently disabled ciphersuites when "HIGH" is parsed).
252 Also, change ssl_create_cipher_list() (using this new
253 funcionality) such that between otherwise identical
254 cihpersuites, ephemeral ECDH is preferred over ephemeral DH in
258 *) Change ssl_create_cipher_list() so that it automatically
259 arranges the ciphersuites in reasonable order before starting
260 to process the rule string. Thus, the definition for "DEFAULT"
261 (SSL_DEFAULT_CIPHER_LIST) now is just "ALL:!aNULL:!eNULL", but
262 remains equivalent to "AES:ALL:!aNULL:!eNULL:+aECDH:+kRSA:+RC4:@STRENGTH".
263 This makes it much easier to arrive at a reasonable default order
264 in applications for which anonymous ciphers are OK (meaning
265 that you can't actually use DEFAULT).
266 [Bodo Moeller; suggested by Victor Duchovni]
268 *) Split the SSL/TLS algorithm mask (as used for ciphersuite string
269 processing) into multiple integers instead of setting
270 "SSL_MKEY_MASK" bits, "SSL_AUTH_MASK" bits, "SSL_ENC_MASK",
271 "SSL_MAC_MASK", and "SSL_SSL_MASK" bits all in a single integer.
272 (These masks as well as the individual bit definitions are hidden
273 away into the non-exported interface ssl/ssl_locl.h, so this
274 change to the definition of the SSL_CIPHER structure shouldn't
275 affect applications.) This give us more bits for each of these
276 categories, so there is no longer a need to coagulate AES128 and
277 AES256 into a single algorithm bit, and to coagulate Camellia128
278 and Camellia256 into a single algorithm bit, which has led to all
281 Thus, among other things, the kludge introduced in 0.9.7m and
282 0.9.8e for masking out AES256 independently of AES128 or masking
283 out Camellia256 independently of AES256 is not needed here in 0.9.9.
285 With the change, we also introduce new ciphersuite aliases that
286 so far were missing: "AES128", "AES256", "CAMELLIA128", and
290 *) Add support for dsa-with-SHA224 and dsa-with-SHA256.
291 Use the leftmost N bytes of the signature input if the input is
292 larger than the prime q (with N being the size in bytes of q).
295 *) Very *very* experimental PKCS#7 streaming encoder support. Nothing uses
296 it yet and it is largely untested.
299 *) Add support for the ecdsa-with-SHA224/256/384/512 signature types.
302 *) Initial incomplete changes to avoid need for function casts in OpenSSL
303 some compilers (gcc 4.2 and later) reject their use. Safestack is
304 reimplemented. Update ASN1 to avoid use of legacy functions.
307 *) Win32/64 targets are linked with Winsock2.
310 *) Add an X509_CRL_METHOD structure to allow CRL processing to be redirected
311 to external functions. This can be used to increase CRL handling
312 efficiency especially when CRLs are very large by (for example) storing
313 the CRL revoked certificates in a database.
316 *) Overhaul of by_dir code. Add support for dynamic loading of CRLs so
317 new CRLs added to a directory can be used. New command line option
318 -verify_return_error to s_client and s_server. This causes real errors
319 to be returned by the verify callback instead of carrying on no matter
320 what. This reflects the way a "real world" verify callback would behave.
323 *) GOST engine, supporting several GOST algorithms and public key formats.
324 Kindly donated by Cryptocom.
327 *) Partial support for Issuing Distribution Point CRL extension. CRLs
328 partitioned by DP are handled but no indirect CRL or reason partitioning
329 (yet). Complete overhaul of CRL handling: now the most suitable CRL is
330 selected via a scoring technique which handles IDP and AKID in CRLs.
333 *) New X509_STORE_CTX callbacks lookup_crls() and lookup_certs() which
334 will ultimately be used for all verify operations: this will remove the
335 X509_STORE dependency on certificate verification and allow alternative
336 lookup methods. X509_STORE based implementations of these two callbacks.
339 *) Allow multiple CRLs to exist in an X509_STORE with matching issuer names.
340 Modify get_crl() to find a valid (unexpired) CRL if possible.
343 *) New function X509_CRL_match() to check if two CRLs are identical. Normally
344 this would be called X509_CRL_cmp() but that name is already used by
345 a function that just compares CRL issuer names. Cache several CRL
346 extensions in X509_CRL structure and cache CRLDP in X509.
349 *) Store a "canonical" representation of X509_NAME structure (ASN1 Name)
350 this maps equivalent X509_NAME structures into a consistent structure.
351 Name comparison can then be performed rapidly using memcmp().
354 *) Non-blocking OCSP request processing. Add -timeout option to ocsp
358 *) Allow digests to supply their own micalg string for S/MIME type using
359 the ctrl EVP_MD_CTRL_MICALG.
362 *) During PKCS7 signing pass the PKCS7 SignerInfo structure to the
363 EVP_PKEY_METHOD before and after signing via the EVP_PKEY_CTRL_PKCS7_SIGN
364 ctrl. It can then customise the structure before and/or after signing
368 *) New function OBJ_add_sigid() to allow application defined signature OIDs
369 to be added to OpenSSLs internal tables. New function OBJ_sigid_free()
370 to free up any added signature OIDs.
373 *) New functions EVP_CIPHER_do_all(), EVP_CIPHER_do_all_sorted(),
374 EVP_MD_do_all() and EVP_MD_do_all_sorted() to enumerate internal
375 digest and cipher tables. New options added to openssl utility:
376 list-message-digest-algorithms and list-cipher-algorithms.
379 *) Change the array representation of binary polynomials: the list
380 of degrees of non-zero coefficients is now terminated with -1.
381 Previously it was terminated with 0, which was also part of the
382 value; thus, the array representation was not applicable to
383 polynomials where t^0 has coefficient zero. This change makes
384 the array representation useful in a more general context.
387 *) Various modifications and fixes to SSL/TLS cipher string
388 handling. For ECC, the code now distinguishes between fixed ECDH
389 with RSA certificates on the one hand and with ECDSA certificates
390 on the other hand, since these are separate ciphersuites. The
391 unused code for Fortezza ciphersuites has been removed.
393 For consistency with EDH, ephemeral ECDH is now called "EECDH"
394 (not "ECDHE"). For consistency with the code for DH
395 certificates, use of ECDH certificates is now considered ECDH
396 authentication, not RSA or ECDSA authentication (the latter is
397 merely the CA's signing algorithm and not actively used in the
400 The temporary ciphersuite alias "ECCdraft" is no longer
401 available, and ECC ciphersuites are no longer excluded from "ALL"
402 and "DEFAULT". The following aliases now exist for RFC 4492
403 ciphersuites, most of these by analogy with the DH case:
405 kECDHr - ECDH cert, signed with RSA
406 kECDHe - ECDH cert, signed with ECDSA
407 kECDH - ECDH cert (signed with either RSA or ECDSA)
408 kEECDH - ephemeral ECDH
409 ECDH - ECDH cert or ephemeral ECDH
415 AECDH - anonymous ECDH
416 EECDH - non-anonymous ephemeral ECDH (equivalent to "kEECDH:-AECDH")
420 *) Add additional S/MIME capabilities for AES and GOST ciphers if supported.
421 Use correct micalg parameters depending on digest(s) in signed message.
424 *) Add engine support for EVP_PKEY_ASN1_METHOD. Add functions to process
425 an ENGINE asn1 method. Support ENGINE lookups in the ASN1 code.
428 *) Initial engine support for EVP_PKEY_METHOD. New functions to permit
429 an engine to register a method. Add ENGINE lookups for methods and
430 functional reference processing.
433 *) New functions EVP_Digest{Sign,Verify)*. These are enchance versions of
434 EVP_{Sign,Verify}* which allow an application to customise the signature
438 *) New -resign option to smime utility. This adds one or more signers
439 to an existing PKCS#7 signedData structure. Also -md option to use an
440 alternative message digest algorithm for signing.
443 *) Tidy up PKCS#7 routines and add new functions to make it easier to
444 create PKCS7 structures containing multiple signers. Update smime
445 application to support multiple signers.
448 *) New -macalg option to pkcs12 utility to allow setting of an alternative
452 *) Initial support for PKCS#5 v2.0 PRFs other than default SHA1 HMAC.
453 Reorganize PBE internals to lookup from a static table using NIDs,
454 add support for HMAC PBE OID translation. Add a EVP_CIPHER ctrl:
455 EVP_CTRL_PBE_PRF_NID this allows a cipher to specify an alternative
456 PRF which will be automatically used with PBES2.
459 *) Replace the algorithm specific calls to generate keys in "req" with the
463 *) Update PKCS#7 enveloped data routines to use new API. This is now
464 supported by any public key method supporting the encrypt operation. A
465 ctrl is added to allow the public key algorithm to examine or modify
466 the PKCS#7 RecipientInfo structure if it needs to: for RSA this is
470 *) Add a ctrl to asn1 method to allow a public key algorithm to express
471 a default digest type to use. In most cases this will be SHA1 but some
472 algorithms (such as GOST) need to specify an alternative digest. The
473 return value indicates how strong the prefernce is 1 means optional and
474 2 is mandatory (that is it is the only supported type). Modify
475 ASN1_item_sign() to accept a NULL digest argument to indicate it should
476 use the default md. Update openssl utilities to use the default digest
477 type for signing if it is not explicitly indicated.
480 *) Use OID cross reference table in ASN1_sign() and ASN1_verify(). New
481 EVP_MD flag EVP_MD_FLAG_PKEY_METHOD_SIGNATURE. This uses the relevant
482 signing method from the key type. This effectively removes the link
483 between digests and public key types.
486 *) Add an OID cross reference table and utility functions. Its purpose is to
487 translate between signature OIDs such as SHA1WithrsaEncryption and SHA1,
488 rsaEncryption. This will allow some of the algorithm specific hackery
489 needed to use the correct OID to be removed.
492 *) Remove algorithm specific dependencies when setting PKCS7_SIGNER_INFO
493 structures for PKCS7_sign(). They are now set up by the relevant public
497 *) Add provisional EC pkey method with support for ECDSA and ECDH.
500 *) Add support for key derivation (agreement) in the API, DH method and
504 *) Add DSA pkey method and DH pkey methods, extend DH ASN1 method to support
505 public and private key formats. As a side effect these add additional
506 command line functionality not previously available: DSA signatures can be
507 generated and verified using pkeyutl and DH key support and generation in
512 [Oliver Tappe <zooey@hirschkaefer.de>]
514 *) New make target "install_html_docs" installs HTML renditions of the
516 [Oliver Tappe <zooey@hirschkaefer.de>]
518 *) New utility "genpkey" this is analagous to "genrsa" etc except it can
519 generate keys for any algorithm. Extend and update EVP_PKEY_METHOD to
520 support key and parameter generation and add initial key generation
521 functionality for RSA.
524 *) Add functions for main EVP_PKEY_method operations. The undocumented
525 functions EVP_PKEY_{encrypt,decrypt} have been renamed to
526 EVP_PKEY_{encrypt,decrypt}_old.
529 *) Initial definitions for EVP_PKEY_METHOD. This will be a high level public
530 key API, doesn't do much yet.
533 *) New function EVP_PKEY_asn1_get0_info() to retrieve information about
534 public key algorithms. New option to openssl utility:
535 "list-public-key-algorithms" to print out info.
538 *) Implement the Supported Elliptic Curves Extension for
539 ECC ciphersuites from draft-ietf-tls-ecc-12.txt.
542 *) Don't free up OIDs in OBJ_cleanup() if they are in use by EVP_MD or
543 EVP_CIPHER structures to avoid later problems in EVP_cleanup().
546 *) New utilities pkey and pkeyparam. These are similar to algorithm specific
547 utilities such as rsa, dsa, dsaparam etc except they process any key
551 *) Transfer public key printing routines to EVP_PKEY_ASN1_METHOD. New
552 functions EVP_PKEY_print_public(), EVP_PKEY_print_private(),
553 EVP_PKEY_print_param() to print public key data from an EVP_PKEY
557 *) Initial support for pluggable public key ASN1.
558 De-spaghettify the public key ASN1 handling. Move public and private
559 key ASN1 handling to a new EVP_PKEY_ASN1_METHOD structure. Relocate
560 algorithm specific handling to a single module within the relevant
561 algorithm directory. Add functions to allow (near) opaque processing
562 of public and private key structures.
565 *) Implement the Supported Point Formats Extension for
566 ECC ciphersuites from draft-ietf-tls-ecc-12.txt.
569 *) Add initial support for RFC 4279 PSK TLS ciphersuites. Add members
570 for the psk identity [hint] and the psk callback functions to the
571 SSL_SESSION, SSL and SSL_CTX structure.
574 PSK-RC4-SHA, PSK-3DES-EDE-CBC-SHA, PSK-AES128-CBC-SHA,
578 SSL_CTX_use_psk_identity_hint
579 SSL_get_psk_identity_hint
581 SSL_use_psk_identity_hint
583 [Mika Kousa and Pasi Eronen of Nokia Corporation]
585 *) Add RFC 3161 compliant time stamp request creation, response generation
586 and response verification functionality.
587 [Zoltán Glózik <zglozik@opentsa.org>, The OpenTSA Project]
589 *) Add initial support for TLS extensions, specifically for the server_name
590 extension so far. The SSL_SESSION, SSL_CTX, and SSL data structures now
591 have new members for a host name. The SSL data structure has an
592 additional member SSL_CTX *initial_ctx so that new sessions can be
593 stored in that context to allow for session resumption, even after the
594 SSL has been switched to a new SSL_CTX in reaction to a client's
595 server_name extension.
597 New functions (subject to change):
600 SSL_get_servername_type()
603 New CTRL codes and macros (subject to change):
605 SSL_CTRL_SET_TLSEXT_SERVERNAME_CB
606 - SSL_CTX_set_tlsext_servername_callback()
607 SSL_CTRL_SET_TLSEXT_SERVERNAME_ARG
608 - SSL_CTX_set_tlsext_servername_arg()
609 SSL_CTRL_SET_TLSEXT_HOSTNAME - SSL_set_tlsext_host_name()
611 openssl s_client has a new '-servername ...' option.
613 openssl s_server has new options '-servername_host ...', '-cert2 ...',
614 '-key2 ...', '-servername_fatal' (subject to change). This allows
615 testing the HostName extension for a specific single host name ('-cert'
616 and '-key' remain fallbacks for handshakes without HostName
617 negotiation). If the unrecogninzed_name alert has to be sent, this by
618 default is a warning; it becomes fatal with the '-servername_fatal'
621 [Peter Sylvester, Remy Allais, Christophe Renou]
623 *) Whirlpool hash implementation is added.
626 *) BIGNUM code on 64-bit SPARCv9 targets is switched from bn(64,64) to
627 bn(64,32). Because of instruction set limitations it doesn't have
628 any negative impact on performance. This was done mostly in order
629 to make it possible to share assembler modules, such as bn_mul_mont
630 implementations, between 32- and 64-bit builds without hassle.
633 *) Move code previously exiled into file crypto/ec/ec2_smpt.c
634 to ec2_smpl.c, and no longer require the OPENSSL_EC_BIN_PT_COMP
638 *) New candidate for BIGNUM assembler implementation, bn_mul_mont,
639 dedicated Montgomery multiplication procedure, is introduced.
640 BN_MONT_CTX is modified to allow bn_mul_mont to reach for higher
641 "64-bit" performance on certain 32-bit targets.
644 *) New option SSL_OP_NO_COMP to disable use of compression selectively
645 in SSL structures. New SSL ctrl to set maximum send fragment size.
646 Save memory by seeting the I/O buffer sizes dynamically instead of
647 using the maximum available value.
650 *) New option -V for 'openssl ciphers'. This prints the ciphersuite code
651 in addition to the text details.
654 *) Very, very preliminary EXPERIMENTAL support for printing of general
655 ASN1 structures. This currently produces rather ugly output and doesn't
656 handle several customised structures at all.
659 *) Integrated support for PVK file format and some related formats such
660 as MS PUBLICKEYBLOB and PRIVATEKEYBLOB. Command line switches to support
661 these in the 'rsa' and 'dsa' utilities.
664 *) Support for PKCS#1 RSAPublicKey format on rsa utility command line.
667 *) Remove the ancient ASN1_METHOD code. This was only ever used in one
668 place for the (very old) "NETSCAPE" format certificates which are now
669 handled using new ASN1 code equivalents.
672 *) Let the TLSv1_method() etc. functions return a 'const' SSL_METHOD
673 pointer and make the SSL_METHOD parameter in SSL_CTX_new,
674 SSL_CTX_set_ssl_version and SSL_set_ssl_method 'const'.
677 *) Modify CRL distribution points extension code to print out previously
678 unsupported fields. Enhance extension setting code to allow setting of
682 *) Add print and set support for Issuing Distribution Point CRL extension.
685 *) Change 'Configure' script to enable Camellia by default.
688 Changes between 0.9.8h and 0.9.8i [xx XXX xxxx]
690 *) Add support for Local Machine Keyset attribute in PKCS#12 files.
693 *) Fix BN_GF2m_mod_arr() top-bit cleanup code.
696 *) Expand ENGINE to support engine supplied SSL client certificate functions.
698 This work was sponsored by Logica.
701 *) Add CryptoAPI ENGINE to support use of RSA and DSA keys held in Windows
702 keystores. Support for SSL/TLS client authentication too.
703 Not compiled unless enable-capieng specified to Configure.
705 This work was sponsored by Logica.
708 Changes between 0.9.8g and 0.9.8h [28 May 2008]
710 *) Fix flaw if 'Server Key exchange message' is omitted from a TLS
711 handshake which could lead to a cilent crash as found using the
712 Codenomicon TLS test suite (CVE-2008-1672)
713 [Steve Henson, Mark Cox]
715 *) Fix double free in TLS server name extensions which could lead to
716 a remote crash found by Codenomicon TLS test suite (CVE-2008-0891)
719 *) Clear error queue in SSL_CTX_use_certificate_chain_file()
721 Clear the error queue to ensure that error entries left from
722 older function calls do not interfere with the correct operation.
723 [Lutz Jaenicke, Erik de Castro Lopo]
725 *) Remove root CA certificates of commercial CAs:
727 The OpenSSL project does not recommend any specific CA and does not
728 have any policy with respect to including or excluding any CA.
729 Therefore it does not make any sense to ship an arbitrary selection
730 of root CA certificates with the OpenSSL software.
733 *) RSA OAEP patches to fix two separate invalid memory reads.
734 The first one involves inputs when 'lzero' is greater than
735 'SHA_DIGEST_LENGTH' (it would read about SHA_DIGEST_LENGTH bytes
736 before the beginning of from). The second one involves inputs where
737 the 'db' section contains nothing but zeroes (there is a one-byte
738 invalid read after the end of 'db').
739 [Ivan Nestlerode <inestlerode@us.ibm.com>]
741 *) Add TLS session ticket callback. This allows an application to set
742 TLS ticket cipher and HMAC keys rather than relying on hardcoded fixed
743 values. This is useful for key rollover for example where several key
744 sets may exist with different names.
747 *) Reverse ENGINE-internal logic for caching default ENGINE handles.
748 This was broken until now in 0.9.8 releases, such that the only way
749 a registered ENGINE could be used (assuming it initialises
750 successfully on the host) was to explicitly set it as the default
751 for the relevant algorithms. This is in contradiction with 0.9.7
752 behaviour and the documentation. With this fix, when an ENGINE is
753 registered into a given algorithm's table of implementations, the
754 'uptodate' flag is reset so that auto-discovery will be used next
755 time a new context for that algorithm attempts to select an
757 [Ian Lister (tweaked by Geoff Thorpe)]
759 *) Update the GMP engine glue to do direct copies between BIGNUM and
760 mpz_t when openssl and GMP use the same limb size. Otherwise the
761 existing "conversion via a text string export" trick is still used.
762 [Paul Sheer <paulsheer@gmail.com>, Geoff Thorpe]
764 *) Zlib compression BIO. This is a filter BIO which compressed and
765 uncompresses any data passed through it.
768 *) Add AES_wrap_key() and AES_unwrap_key() functions to implement
769 RFC3394 compatible AES key wrapping.
772 *) Add utility functions to handle ASN1 structures. ASN1_STRING_set0():
773 sets string data without copying. X509_ALGOR_set0() and
774 X509_ALGOR_get0(): set and retrieve X509_ALGOR (AlgorithmIdentifier)
775 data. Attribute function X509at_get0_data_by_OBJ(): retrieves data
776 from an X509_ATTRIBUTE structure optionally checking it occurs only
777 once. ASN1_TYPE_set1(): set and ASN1_TYPE structure copying supplied
781 *) Fix BN flag handling in RSA_eay_mod_exp() and BN_MONT_CTX_set()
782 to get the expected BN_FLG_CONSTTIME behavior.
783 [Bodo Moeller (Google)]
787 - fixed wrong usage of ioctlsocket() when build for LIBC BSD sockets
788 - fixed do_tests.pl to run the test suite with CLIB builds too (CLIB_OPT)
789 - added some more tests to do_tests.pl
790 - fixed RunningProcess usage so that it works with newer LIBC NDKs too
791 - removed usage of BN_LLONG for CLIB builds to avoid runtime dependency
792 - added new Configure targets netware-clib-bsdsock, netware-clib-gcc,
793 netware-clib-bsdsock-gcc, netware-libc-bsdsock-gcc
794 - various changes to netware.pl to enable gcc-cross builds on Win32
796 - changed crypto/bio/b_sock.c to work with macro functions (CLIB BSD)
797 - various changes to fix missing prototype warnings
798 - fixed x86nasm.pl to create correct asm files for NASM COFF output
799 - added AES, WHIRLPOOL and CPUID assembler code to build files
800 - added missing AES assembler make rules to mk1mf.pl
801 - fixed order of includes in apps/ocsp.c so that e_os.h settings apply
802 [Guenter Knauf <eflash@gmx.net>]
804 *) Implement certificate status request TLS extension defined in RFC3546.
805 A client can set the appropriate parameters and receive the encoded
806 OCSP response via a callback. A server can query the supplied parameters
807 and set the encoded OCSP response in the callback. Add simplified examples
808 to s_client and s_server.
811 Changes between 0.9.8f and 0.9.8g [19 Oct 2007]
814 + Binary incompatibility of ssl_ctx_st structure
815 + DTLS interoperation with non-compliant servers
816 + Don't call get_session_cb() without proposed session
817 + Fix ia64 assembler code
818 [Andy Polyakov, Steve Henson]
820 Changes between 0.9.8e and 0.9.8f [11 Oct 2007]
822 *) DTLS Handshake overhaul. There were longstanding issues with
823 OpenSSL DTLS implementation, which were making it impossible for
824 RFC 4347 compliant client to communicate with OpenSSL server.
825 Unfortunately just fixing these incompatibilities would "cut off"
826 pre-0.9.8f clients. To allow for hassle free upgrade post-0.9.8e
827 server keeps tolerating non RFC compliant syntax. The opposite is
828 not true, 0.9.8f client can not communicate with earlier server.
829 This update even addresses CVE-2007-4995.
832 *) Changes to avoid need for function casts in OpenSSL: some compilers
833 (gcc 4.2 and later) reject their use.
834 [Kurt Roeckx <kurt@roeckx.be>, Peter Hartley <pdh@utter.chaos.org.uk>,
837 *) Add RFC4507 support to OpenSSL. This includes the corrections in
838 RFC4507bis. The encrypted ticket format is an encrypted encoded
839 SSL_SESSION structure, that way new session features are automatically
842 If a client application caches session in an SSL_SESSION structure
843 support is transparent because tickets are now stored in the encoded
846 The SSL_CTX structure automatically generates keys for ticket
847 protection in servers so again support should be possible
848 with no application modification.
850 If a client or server wishes to disable RFC4507 support then the option
851 SSL_OP_NO_TICKET can be set.
853 Add a TLS extension debugging callback to allow the contents of any client
854 or server extensions to be examined.
856 This work was sponsored by Google.
859 *) Add initial support for TLS extensions, specifically for the server_name
860 extension so far. The SSL_SESSION, SSL_CTX, and SSL data structures now
861 have new members for a host name. The SSL data structure has an
862 additional member SSL_CTX *initial_ctx so that new sessions can be
863 stored in that context to allow for session resumption, even after the
864 SSL has been switched to a new SSL_CTX in reaction to a client's
865 server_name extension.
867 New functions (subject to change):
870 SSL_get_servername_type()
873 New CTRL codes and macros (subject to change):
875 SSL_CTRL_SET_TLSEXT_SERVERNAME_CB
876 - SSL_CTX_set_tlsext_servername_callback()
877 SSL_CTRL_SET_TLSEXT_SERVERNAME_ARG
878 - SSL_CTX_set_tlsext_servername_arg()
879 SSL_CTRL_SET_TLSEXT_HOSTNAME - SSL_set_tlsext_host_name()
881 openssl s_client has a new '-servername ...' option.
883 openssl s_server has new options '-servername_host ...', '-cert2 ...',
884 '-key2 ...', '-servername_fatal' (subject to change). This allows
885 testing the HostName extension for a specific single host name ('-cert'
886 and '-key' remain fallbacks for handshakes without HostName
887 negotiation). If the unrecogninzed_name alert has to be sent, this by
888 default is a warning; it becomes fatal with the '-servername_fatal'
891 [Peter Sylvester, Remy Allais, Christophe Renou, Steve Henson]
893 *) Add AES and SSE2 assembly language support to VC++ build.
896 *) Mitigate attack on final subtraction in Montgomery reduction.
899 *) Fix crypto/ec/ec_mult.c to work properly with scalars of value 0
900 (which previously caused an internal error).
903 *) Squeeze another 10% out of IGE mode when in != out.
906 *) AES IGE mode speedup.
907 [Dean Gaudet (Google)]
909 *) Add the Korean symmetric 128-bit cipher SEED (see
910 http://www.kisa.or.kr/kisa/seed/jsp/seed_eng.jsp) and
911 add SEED ciphersuites from RFC 4162:
913 TLS_RSA_WITH_SEED_CBC_SHA = "SEED-SHA"
914 TLS_DHE_DSS_WITH_SEED_CBC_SHA = "DHE-DSS-SEED-SHA"
915 TLS_DHE_RSA_WITH_SEED_CBC_SHA = "DHE-RSA-SEED-SHA"
916 TLS_DH_anon_WITH_SEED_CBC_SHA = "ADH-SEED-SHA"
918 To minimize changes between patchlevels in the OpenSSL 0.9.8
919 series, SEED remains excluded from compilation unless OpenSSL
920 is configured with 'enable-seed'.
923 *) Mitigate branch prediction attacks, which can be practical if a
924 single processor is shared, allowing a spy process to extract
925 information. For detailed background information, see
926 http://eprint.iacr.org/2007/039 (O. Aciicmez, S. Gueron,
927 J.-P. Seifert, "New Branch Prediction Vulnerabilities in OpenSSL
928 and Necessary Software Countermeasures"). The core of the change
929 are new versions BN_div_no_branch() and
930 BN_mod_inverse_no_branch() of BN_div() and BN_mod_inverse(),
931 respectively, which are slower, but avoid the security-relevant
932 conditional branches. These are automatically called by BN_div()
933 and BN_mod_inverse() if the flag BN_FLG_CONSTTIME is set for one
934 of the input BIGNUMs. Also, BN_is_bit_set() has been changed to
935 remove a conditional branch.
937 BN_FLG_CONSTTIME is the new name for the previous
938 BN_FLG_EXP_CONSTTIME flag, since it now affects more than just
939 modular exponentiation. (Since OpenSSL 0.9.7h, setting this flag
940 in the exponent causes BN_mod_exp_mont() to use the alternative
941 implementation in BN_mod_exp_mont_consttime().) The old name
942 remains as a deprecated alias.
944 Similary, RSA_FLAG_NO_EXP_CONSTTIME is replaced by a more general
945 RSA_FLAG_NO_CONSTTIME flag since the RSA implementation now uses
946 constant-time implementations for more than just exponentiation.
947 Here too the old name is kept as a deprecated alias.
949 BN_BLINDING_new() will now use BN_dup() for the modulus so that
950 the BN_BLINDING structure gets an independent copy of the
951 modulus. This means that the previous "BIGNUM *m" argument to
952 BN_BLINDING_new() and to BN_BLINDING_create_param() now
953 essentially becomes "const BIGNUM *m", although we can't actually
954 change this in the header file before 0.9.9. It allows
955 RSA_setup_blinding() to use BN_with_flags() on the modulus to
956 enable BN_FLG_CONSTTIME.
958 [Matthew D Wood (Intel Corp)]
960 *) In the SSL/TLS server implementation, be strict about session ID
961 context matching (which matters if an application uses a single
962 external cache for different purposes). Previously,
963 out-of-context reuse was forbidden only if SSL_VERIFY_PEER was
964 set. This did ensure strict client verification, but meant that,
965 with applications using a single external cache for quite
966 different requirements, clients could circumvent ciphersuite
967 restrictions for a given session ID context by starting a session
968 in a different context.
971 *) Include "!eNULL" in SSL_DEFAULT_CIPHER_LIST to make sure that
972 a ciphersuite string such as "DEFAULT:RSA" cannot enable
973 authentication-only ciphersuites.
976 Changes between 0.9.8d and 0.9.8e [23 Feb 2007]
978 *) Since AES128 and AES256 (and similarly Camellia128 and
979 Camellia256) share a single mask bit in the logic of
980 ssl/ssl_ciph.c, the code for masking out disabled ciphers needs a
981 kludge to work properly if AES128 is available and AES256 isn't
982 (or if Camellia128 is available and Camellia256 isn't).
985 *) Fix the BIT STRING encoding generated by crypto/ec/ec_asn1.c
986 (within i2d_ECPrivateKey, i2d_ECPKParameters, i2d_ECParameters):
987 When a point or a seed is encoded in a BIT STRING, we need to
988 prevent the removal of trailing zero bits to get the proper DER
989 encoding. (By default, crypto/asn1/a_bitstr.c assumes the case
990 of a NamedBitList, for which trailing 0 bits need to be removed.)
993 *) Have SSL/TLS server implementation tolerate "mismatched" record
994 protocol version while receiving ClientHello even if the
995 ClientHello is fragmented. (The server can't insist on the
996 particular protocol version it has chosen before the ServerHello
997 message has informed the client about his choice.)
1000 *) Add RFC 3779 support.
1001 [Rob Austein for ARIN, Ben Laurie]
1003 *) Load error codes if they are not already present instead of using a
1004 static variable. This allows them to be cleanly unloaded and reloaded.
1005 Improve header file function name parsing.
1008 *) extend SMTP and IMAP protocol emulation in s_client to use EHLO
1009 or CAPABILITY handshake as required by RFCs.
1012 Changes between 0.9.8c and 0.9.8d [28 Sep 2006]
1014 *) Introduce limits to prevent malicious keys being able to
1015 cause a denial of service. (CVE-2006-2940)
1016 [Steve Henson, Bodo Moeller]
1018 *) Fix ASN.1 parsing of certain invalid structures that can result
1019 in a denial of service. (CVE-2006-2937) [Steve Henson]
1021 *) Fix buffer overflow in SSL_get_shared_ciphers() function.
1022 (CVE-2006-3738) [Tavis Ormandy and Will Drewry, Google Security Team]
1024 *) Fix SSL client code which could crash if connecting to a
1025 malicious SSLv2 server. (CVE-2006-4343)
1026 [Tavis Ormandy and Will Drewry, Google Security Team]
1028 *) Since 0.9.8b, ciphersuite strings naming explicit ciphersuites
1029 match only those. Before that, "AES256-SHA" would be interpreted
1030 as a pattern and match "AES128-SHA" too (since AES128-SHA got
1031 the same strength classification in 0.9.7h) as we currently only
1032 have a single AES bit in the ciphersuite description bitmap.
1033 That change, however, also applied to ciphersuite strings such as
1034 "RC4-MD5" that intentionally matched multiple ciphersuites --
1035 namely, SSL 2.0 ciphersuites in addition to the more common ones
1036 from SSL 3.0/TLS 1.0.
1038 So we change the selection algorithm again: Naming an explicit
1039 ciphersuite selects this one ciphersuite, and any other similar
1040 ciphersuite (same bitmap) from *other* protocol versions.
1041 Thus, "RC4-MD5" again will properly select both the SSL 2.0
1042 ciphersuite and the SSL 3.0/TLS 1.0 ciphersuite.
1044 Since SSL 2.0 does not have any ciphersuites for which the
1045 128/256 bit distinction would be relevant, this works for now.
1046 The proper fix will be to use different bits for AES128 and
1047 AES256, which would have avoided the problems from the beginning;
1048 however, bits are scarce, so we can only do this in a new release
1049 (not just a patchlevel) when we can change the SSL_CIPHER
1050 definition to split the single 'unsigned long mask' bitmap into
1051 multiple values to extend the available space.
1055 Changes between 0.9.8b and 0.9.8c [05 Sep 2006]
1057 *) Avoid PKCS #1 v1.5 signature attack discovered by Daniel Bleichenbacher
1058 (CVE-2006-4339) [Ben Laurie and Google Security Team]
1060 *) Add AES IGE and biIGE modes.
1063 *) Change the Unix randomness entropy gathering to use poll() when
1064 possible instead of select(), since the latter has some
1065 undesirable limitations.
1066 [Darryl Miles via Richard Levitte and Bodo Moeller]
1068 *) Disable "ECCdraft" ciphersuites more thoroughly. Now special
1069 treatment in ssl/ssl_ciph.s makes sure that these ciphersuites
1070 cannot be implicitly activated as part of, e.g., the "AES" alias.
1071 However, please upgrade to OpenSSL 0.9.9[-dev] for
1072 non-experimental use of the ECC ciphersuites to get TLS extension
1073 support, which is required for curve and point format negotiation
1074 to avoid potential handshake problems.
1077 *) Disable rogue ciphersuites:
1079 - SSLv2 0x08 0x00 0x80 ("RC4-64-MD5")
1080 - SSLv3/TLSv1 0x00 0x61 ("EXP1024-RC2-CBC-MD5")
1081 - SSLv3/TLSv1 0x00 0x60 ("EXP1024-RC4-MD5")
1083 The latter two were purportedly from
1084 draft-ietf-tls-56-bit-ciphersuites-0[01].txt, but do not really
1087 Also deactivate the remaining ciphersuites from
1088 draft-ietf-tls-56-bit-ciphersuites-01.txt. These are just as
1089 unofficial, and the ID has long expired.
1092 *) Fix RSA blinding Heisenbug (problems sometimes occured on
1093 dual-core machines) and other potential thread-safety issues.
1096 *) Add the symmetric cipher Camellia (128-bit, 192-bit, 256-bit key
1097 versions), which is now available for royalty-free use
1098 (see http://info.isl.ntt.co.jp/crypt/eng/info/chiteki.html).
1099 Also, add Camellia TLS ciphersuites from RFC 4132.
1101 To minimize changes between patchlevels in the OpenSSL 0.9.8
1102 series, Camellia remains excluded from compilation unless OpenSSL
1103 is configured with 'enable-camellia'.
1106 *) Disable the padding bug check when compression is in use. The padding
1107 bug check assumes the first packet is of even length, this is not
1108 necessarily true if compresssion is enabled and can result in false
1109 positives causing handshake failure. The actual bug test is ancient
1110 code so it is hoped that implementations will either have fixed it by
1111 now or any which still have the bug do not support compression.
1114 Changes between 0.9.8a and 0.9.8b [04 May 2006]
1116 *) When applying a cipher rule check to see if string match is an explicit
1117 cipher suite and only match that one cipher suite if it is.
1120 *) Link in manifests for VC++ if needed.
1121 [Austin Ziegler <halostatue@gmail.com>]
1123 *) Update support for ECC-based TLS ciphersuites according to
1124 draft-ietf-tls-ecc-12.txt with proposed changes (but without
1125 TLS extensions, which are supported starting with the 0.9.9
1126 branch, not in the OpenSSL 0.9.8 branch).
1129 *) New functions EVP_CIPHER_CTX_new() and EVP_CIPHER_CTX_free() to support
1130 opaque EVP_CIPHER_CTX handling.
1133 *) Fixes and enhancements to zlib compression code. We now only use
1134 "zlib1.dll" and use the default __cdecl calling convention on Win32
1135 to conform with the standards mentioned here:
1136 http://www.zlib.net/DLL_FAQ.txt
1137 Static zlib linking now works on Windows and the new --with-zlib-include
1138 --with-zlib-lib options to Configure can be used to supply the location
1139 of the headers and library. Gracefully handle case where zlib library
1143 *) Several fixes and enhancements to the OID generation code. The old code
1144 sometimes allowed invalid OIDs (1.X for X >= 40 for example), couldn't
1145 handle numbers larger than ULONG_MAX, truncated printing and had a
1146 non standard OBJ_obj2txt() behaviour.
1149 *) Add support for building of engines under engine/ as shared libraries
1150 under VC++ build system.
1153 *) Corrected the numerous bugs in the Win32 path splitter in DSO.
1154 Hopefully, we will not see any false combination of paths any more.
1157 Changes between 0.9.8 and 0.9.8a [11 Oct 2005]
1159 *) Remove the functionality of SSL_OP_MSIE_SSLV2_RSA_PADDING
1160 (part of SSL_OP_ALL). This option used to disable the
1161 countermeasure against man-in-the-middle protocol-version
1162 rollback in the SSL 2.0 server implementation, which is a bad
1163 idea. (CVE-2005-2969)
1165 [Bodo Moeller; problem pointed out by Yutaka Oiwa (Research Center
1166 for Information Security, National Institute of Advanced Industrial
1167 Science and Technology [AIST], Japan)]
1169 *) Add two function to clear and return the verify parameter flags.
1172 *) Keep cipherlists sorted in the source instead of sorting them at
1173 runtime, thus removing the need for a lock.
1176 *) Avoid some small subgroup attacks in Diffie-Hellman.
1177 [Nick Mathewson and Ben Laurie]
1179 *) Add functions for well-known primes.
1182 *) Extended Windows CE support.
1183 [Satoshi Nakamura and Andy Polyakov]
1185 *) Initialize SSL_METHOD structures at compile time instead of during
1186 runtime, thus removing the need for a lock.
1189 *) Make PKCS7_decrypt() work even if no certificate is supplied by
1190 attempting to decrypt each encrypted key in turn. Add support to
1194 Changes between 0.9.7h and 0.9.8 [05 Jul 2005]
1196 [NB: OpenSSL 0.9.7i and later 0.9.7 patch levels were released after
1199 *) Add libcrypto.pc and libssl.pc for those who feel they need them.
1202 *) Change CA.sh and CA.pl so they don't bundle the CSR and the private
1203 key into the same file any more.
1206 *) Add initial support for Win64, both IA64 and AMD64/x64 flavors.
1209 *) Add -utf8 command line and config file option to 'ca'.
1210 [Stefan <stf@udoma.org]
1212 *) Removed the macro des_crypt(), as it seems to conflict with some
1213 libraries. Use DES_crypt().
1216 *) Correct naming of the 'chil' and '4758cca' ENGINEs. This
1217 involves renaming the source and generated shared-libs for
1218 both. The engines will accept the corrected or legacy ids
1219 ('ncipher' and '4758_cca' respectively) when binding. NB,
1220 this only applies when building 'shared'.
1221 [Corinna Vinschen <vinschen@redhat.com> and Geoff Thorpe]
1223 *) Add attribute functions to EVP_PKEY structure. Modify
1224 PKCS12_create() to recognize a CSP name attribute and
1225 use it. Make -CSP option work again in pkcs12 utility.
1228 *) Add new functionality to the bn blinding code:
1229 - automatic re-creation of the BN_BLINDING parameters after
1230 a fixed number of uses (currently 32)
1231 - add new function for parameter creation
1232 - introduce flags to control the update behaviour of the
1233 BN_BLINDING parameters
1234 - hide BN_BLINDING structure
1235 Add a second BN_BLINDING slot to the RSA structure to improve
1236 performance when a single RSA object is shared among several
1240 *) Add support for DTLS.
1241 [Nagendra Modadugu <nagendra@cs.stanford.edu> and Ben Laurie]
1243 *) Add support for DER encoded private keys (SSL_FILETYPE_ASN1)
1244 to SSL_CTX_use_PrivateKey_file() and SSL_use_PrivateKey_file()
1247 *) Remove buggy and incompletet DH cert support from
1248 ssl/ssl_rsa.c and ssl/s3_both.c
1251 *) Use SHA-1 instead of MD5 as the default digest algorithm for
1252 the apps/openssl applications.
1255 *) Compile clean with "-Wall -Wmissing-prototypes
1256 -Wstrict-prototypes -Wmissing-declarations -Werror". Currently
1257 DEBUG_SAFESTACK must also be set.
1260 *) Change ./Configure so that certain algorithms can be disabled by default.
1261 The new counterpiece to "no-xxx" is "enable-xxx".
1263 The patented RC5 and MDC2 algorithms will now be disabled unless
1264 "enable-rc5" and "enable-mdc2", respectively, are specified.
1266 (IDEA remains enabled despite being patented. This is because IDEA
1267 is frequently required for interoperability, and there is no license
1268 fee for non-commercial use. As before, "no-idea" can be used to
1269 avoid this algorithm.)
1273 *) Add processing of proxy certificates (see RFC 3820). This work was
1274 sponsored by KTH (The Royal Institute of Technology in Stockholm) and
1275 EGEE (Enabling Grids for E-science in Europe).
1278 *) RC4 performance overhaul on modern architectures/implementations, such
1279 as Intel P4, IA-64 and AMD64.
1282 *) New utility extract-section.pl. This can be used specify an alternative
1283 section number in a pod file instead of having to treat each file as
1284 a separate case in Makefile. This can be done by adding two lines to the
1287 =for comment openssl_section:XXX
1289 The blank line is mandatory.
1293 *) New arguments -certform, -keyform and -pass for s_client and s_server
1294 to allow alternative format key and certificate files and passphrase
1298 *) New structure X509_VERIFY_PARAM which combines current verify parameters,
1299 update associated structures and add various utility functions.
1301 Add new policy related verify parameters, include policy checking in
1302 standard verify code. Enhance 'smime' application with extra parameters
1303 to support policy checking and print out.
1306 *) Add a new engine to support VIA PadLock ACE extensions in the VIA C3
1307 Nehemiah processors. These extensions support AES encryption in hardware
1308 as well as RNG (though RNG support is currently disabled).
1309 [Michal Ludvig <michal@logix.cz>, with help from Andy Polyakov]
1311 *) Deprecate BN_[get|set]_params() functions (they were ignored internally).
1314 *) New FIPS 180-2 algorithms, SHA-224/-256/-384/-512 are implemented.
1315 [Andy Polyakov and a number of other people]
1317 *) Improved PowerPC platform support. Most notably BIGNUM assembler
1318 implementation contributed by IBM.
1319 [Suresh Chari, Peter Waltenberg, Andy Polyakov]
1321 *) The new 'RSA_generate_key_ex' function now takes a BIGNUM for the public
1322 exponent rather than 'unsigned long'. There is a corresponding change to
1323 the new 'rsa_keygen' element of the RSA_METHOD structure.
1324 [Jelte Jansen, Geoff Thorpe]
1326 *) Functionality for creating the initial serial number file is now
1327 moved from CA.pl to the 'ca' utility with a new option -create_serial.
1329 (Before OpenSSL 0.9.7e, CA.pl used to initialize the serial
1330 number file to 1, which is bound to cause problems. To avoid
1331 the problems while respecting compatibility between different 0.9.7
1332 patchlevels, 0.9.7e employed 'openssl x509 -next_serial' in
1333 CA.pl for serial number initialization. With the new release 0.9.8,
1334 we can fix the problem directly in the 'ca' utility.)
1337 *) Reduced header interdepencies by declaring more opaque objects in
1338 ossl_typ.h. As a consequence, including some headers (eg. engine.h) will
1339 give fewer recursive includes, which could break lazy source code - so
1340 this change is covered by the OPENSSL_NO_DEPRECATED symbol. As always,
1341 developers should define this symbol when building and using openssl to
1342 ensure they track the recommended behaviour, interfaces, [etc], but
1343 backwards-compatible behaviour prevails when this isn't defined.
1346 *) New function X509_POLICY_NODE_print() which prints out policy nodes.
1349 *) Add new EVP function EVP_CIPHER_CTX_rand_key and associated functionality.
1350 This will generate a random key of the appropriate length based on the
1351 cipher context. The EVP_CIPHER can provide its own random key generation
1352 routine to support keys of a specific form. This is used in the des and
1353 3des routines to generate a key of the correct parity. Update S/MIME
1354 code to use new functions and hence generate correct parity DES keys.
1355 Add EVP_CHECK_DES_KEY #define to return an error if the key is not
1356 valid (weak or incorrect parity).
1359 *) Add a local set of CRLs that can be used by X509_verify_cert() as well
1360 as looking them up. This is useful when the verified structure may contain
1361 CRLs, for example PKCS#7 signedData. Modify PKCS7_verify() to use any CRLs
1362 present unless the new PKCS7_NO_CRL flag is asserted.
1365 *) Extend ASN1 oid configuration module. It now additionally accepts the
1368 shortName = some long name, 1.2.3.4
1371 *) Reimplemented the BN_CTX implementation. There is now no more static
1372 limitation on the number of variables it can handle nor the depth of the
1373 "stack" handling for BN_CTX_start()/BN_CTX_end() pairs. The stack
1374 information can now expand as required, and rather than having a single
1375 static array of bignums, BN_CTX now uses a linked-list of such arrays
1376 allowing it to expand on demand whilst maintaining the usefulness of
1377 BN_CTX's "bundling".
1380 *) Add a missing BN_CTX parameter to the 'rsa_mod_exp' callback in RSA_METHOD
1381 to allow all RSA operations to function using a single BN_CTX.
1384 *) Preliminary support for certificate policy evaluation and checking. This
1385 is initially intended to pass the tests outlined in "Conformance Testing
1386 of Relying Party Client Certificate Path Processing Logic" v1.07.
1389 *) bn_dup_expand() has been deprecated, it was introduced in 0.9.7 and
1390 remained unused and not that useful. A variety of other little bignum
1391 tweaks and fixes have also been made continuing on from the audit (see
1395 *) Constify all or almost all d2i, c2i, s2i and r2i functions, along with
1396 associated ASN1, EVP and SSL functions and old ASN1 macros.
1399 *) BN_zero() only needs to set 'top' and 'neg' to zero for correct results,
1400 and this should never fail. So the return value from the use of
1401 BN_set_word() (which can fail due to needless expansion) is now deprecated;
1402 if OPENSSL_NO_DEPRECATED is defined, BN_zero() is a void macro.
1405 *) BN_CTX_get() should return zero-valued bignums, providing the same
1406 initialised value as BN_new().
1407 [Geoff Thorpe, suggested by Ulf Möller]
1409 *) Support for inhibitAnyPolicy certificate extension.
1412 *) An audit of the BIGNUM code is underway, for which debugging code is
1413 enabled when BN_DEBUG is defined. This makes stricter enforcements on what
1414 is considered valid when processing BIGNUMs, and causes execution to
1415 assert() when a problem is discovered. If BN_DEBUG_RAND is defined,
1416 further steps are taken to deliberately pollute unused data in BIGNUM
1417 structures to try and expose faulty code further on. For now, openssl will
1418 (in its default mode of operation) continue to tolerate the inconsistent
1419 forms that it has tolerated in the past, but authors and packagers should
1420 consider trying openssl and their own applications when compiled with
1421 these debugging symbols defined. It will help highlight potential bugs in
1422 their own code, and will improve the test coverage for OpenSSL itself. At
1423 some point, these tighter rules will become openssl's default to improve
1424 maintainability, though the assert()s and other overheads will remain only
1425 in debugging configurations. See bn.h for more details.
1426 [Geoff Thorpe, Nils Larsch, Ulf Möller]
1428 *) BN_CTX_init() has been deprecated, as BN_CTX is an opaque structure
1429 that can only be obtained through BN_CTX_new() (which implicitly
1430 initialises it). The presence of this function only made it possible
1431 to overwrite an existing structure (and cause memory leaks).
1434 *) Because of the callback-based approach for implementing LHASH as a
1435 template type, lh_insert() adds opaque objects to hash-tables and
1436 lh_doall() or lh_doall_arg() are typically used with a destructor callback
1437 to clean up those corresponding objects before destroying the hash table
1438 (and losing the object pointers). So some over-zealous constifications in
1439 LHASH have been relaxed so that lh_insert() does not take (nor store) the
1440 objects as "const" and the lh_doall[_arg] callback wrappers are not
1441 prototyped to have "const" restrictions on the object pointers they are
1442 given (and so aren't required to cast them away any more).
1445 *) The tmdiff.h API was so ugly and minimal that our own timing utility
1446 (speed) prefers to use its own implementation. The two implementations
1447 haven't been consolidated as yet (volunteers?) but the tmdiff API has had
1448 its object type properly exposed (MS_TM) instead of casting to/from "char
1449 *". This may still change yet if someone realises MS_TM and "ms_time_***"
1450 aren't necessarily the greatest nomenclatures - but this is what was used
1451 internally to the implementation so I've used that for now.
1454 *) Ensure that deprecated functions do not get compiled when
1455 OPENSSL_NO_DEPRECATED is defined. Some "openssl" subcommands and a few of
1456 the self-tests were still using deprecated key-generation functions so
1457 these have been updated also.
1460 *) Reorganise PKCS#7 code to separate the digest location functionality
1461 into PKCS7_find_digest(), digest addtion into PKCS7_bio_add_digest().
1462 New function PKCS7_set_digest() to set the digest type for PKCS#7
1463 digestedData type. Add additional code to correctly generate the
1464 digestedData type and add support for this type in PKCS7 initialization
1468 *) New function PKCS7_set0_type_other() this initializes a PKCS7
1469 structure of type "other".
1472 *) Fix prime generation loop in crypto/bn/bn_prime.pl by making
1473 sure the loop does correctly stop and breaking ("division by zero")
1474 modulus operations are not performed. The (pre-generated) prime
1475 table crypto/bn/bn_prime.h was already correct, but it could not be
1476 re-generated on some platforms because of the "division by zero"
1477 situation in the script.
1478 [Ralf S. Engelschall]
1480 *) Update support for ECC-based TLS ciphersuites according to
1481 draft-ietf-tls-ecc-03.txt: the KDF1 key derivation function with
1482 SHA-1 now is only used for "small" curves (where the
1483 representation of a field element takes up to 24 bytes); for
1484 larger curves, the field element resulting from ECDH is directly
1485 used as premaster secret.
1486 [Douglas Stebila (Sun Microsystems Laboratories)]
1488 *) Add code for kP+lQ timings to crypto/ec/ectest.c, and add SEC2
1489 curve secp160r1 to the tests.
1490 [Douglas Stebila (Sun Microsystems Laboratories)]
1492 *) Add the possibility to load symbols globally with DSO.
1493 [Götz Babin-Ebell <babin-ebell@trustcenter.de> via Richard Levitte]
1495 *) Add the functions ERR_set_mark() and ERR_pop_to_mark() for better
1496 control of the error stack.
1499 *) Add support for STORE in ENGINE.
1502 *) Add the STORE type. The intention is to provide a common interface
1503 to certificate and key stores, be they simple file-based stores, or
1504 HSM-type store, or LDAP stores, or...
1505 NOTE: The code is currently UNTESTED and isn't really used anywhere.
1508 *) Add a generic structure called OPENSSL_ITEM. This can be used to
1509 pass a list of arguments to any function as well as provide a way
1510 for a function to pass data back to the caller.
1513 *) Add the functions BUF_strndup() and BUF_memdup(). BUF_strndup()
1514 works like BUF_strdup() but can be used to duplicate a portion of
1515 a string. The copy gets NUL-terminated. BUF_memdup() duplicates
1519 *) Add the function sk_find_ex() which works like sk_find(), but will
1520 return an index to an element even if an exact match couldn't be
1521 found. The index is guaranteed to point at the element where the
1522 searched-for key would be inserted to preserve sorting order.
1525 *) Add the function OBJ_bsearch_ex() which works like OBJ_bsearch() but
1526 takes an extra flags argument for optional functionality. Currently,
1527 the following flags are defined:
1529 OBJ_BSEARCH_VALUE_ON_NOMATCH
1530 This one gets OBJ_bsearch_ex() to return a pointer to the first
1531 element where the comparing function returns a negative or zero
1534 OBJ_BSEARCH_FIRST_VALUE_ON_MATCH
1535 This one gets OBJ_bsearch_ex() to return a pointer to the first
1536 element where the comparing function returns zero. This is useful
1537 if there are more than one element where the comparing function
1541 *) Make it possible to create self-signed certificates with 'openssl ca'
1542 in such a way that the self-signed certificate becomes part of the
1543 CA database and uses the same mechanisms for serial number generation
1544 as all other certificate signing. The new flag '-selfsign' enables
1545 this functionality. Adapt CA.sh and CA.pl.in.
1548 *) Add functionality to check the public key of a certificate request
1549 against a given private. This is useful to check that a certificate
1550 request can be signed by that key (self-signing).
1553 *) Make it possible to have multiple active certificates with the same
1554 subject in the CA index file. This is done only if the keyword
1555 'unique_subject' is set to 'no' in the main CA section (default
1556 if 'CA_default') of the configuration file. The value is saved
1557 with the database itself in a separate index attribute file,
1558 named like the index file with '.attr' appended to the name.
1561 *) Generate muti valued AVAs using '+' notation in config files for
1565 *) Support for nameConstraints certificate extension.
1568 *) Support for policyConstraints certificate extension.
1571 *) Support for policyMappings certificate extension.
1574 *) Make sure the default DSA_METHOD implementation only uses its
1575 dsa_mod_exp() and/or bn_mod_exp() handlers if they are non-NULL,
1576 and change its own handlers to be NULL so as to remove unnecessary
1577 indirection. This lets alternative implementations fallback to the
1578 default implementation more easily.
1581 *) Support for directoryName in GeneralName related extensions
1585 *) Make it possible to link applications using Makefile.shared.
1586 Make that possible even when linking against static libraries!
1589 *) Support for single pass processing for S/MIME signing. This now
1590 means that S/MIME signing can be done from a pipe, in addition
1591 cleartext signing (multipart/signed type) is effectively streaming
1592 and the signed data does not need to be all held in memory.
1594 This is done with a new flag PKCS7_STREAM. When this flag is set
1595 PKCS7_sign() only initializes the PKCS7 structure and the actual signing
1596 is done after the data is output (and digests calculated) in
1597 SMIME_write_PKCS7().
1600 *) Add full support for -rpath/-R, both in shared libraries and
1601 applications, at least on the platforms where it's known how
1605 *) In crypto/ec/ec_mult.c, implement fast point multiplication with
1606 precomputation, based on wNAF splitting: EC_GROUP_precompute_mult()
1607 will now compute a table of multiples of the generator that
1608 makes subsequent invocations of EC_POINTs_mul() or EC_POINT_mul()
1609 faster (notably in the case of a single point multiplication,
1610 scalar * generator).
1611 [Nils Larsch, Bodo Moeller]
1613 *) IPv6 support for certificate extensions. The various extensions
1614 which use the IP:a.b.c.d can now take IPv6 addresses using the
1615 formats of RFC1884 2.2 . IPv6 addresses are now also displayed
1619 *) Added an ENGINE that implements RSA by performing private key
1620 exponentiations with the GMP library. The conversions to and from
1621 GMP's mpz_t format aren't optimised nor are any montgomery forms
1622 cached, and on x86 it appears OpenSSL's own performance has caught up.
1623 However there are likely to be other architectures where GMP could
1624 provide a boost. This ENGINE is not built in by default, but it can be
1625 specified at Configure time and should be accompanied by the necessary
1626 linker additions, eg;
1627 ./config -DOPENSSL_USE_GMP -lgmp
1630 *) "openssl engine" will not display ENGINE/DSO load failure errors when
1631 testing availability of engines with "-t" - the old behaviour is
1632 produced by increasing the feature's verbosity with "-tt".
1635 *) ECDSA routines: under certain error conditions uninitialized BN objects
1636 could be freed. Solution: make sure initialization is performed early
1637 enough. (Reported and fix supplied by Nils Larsch <nla@trustcenter.de>
1641 *) Key-generation can now be implemented in RSA_METHOD, DSA_METHOD
1642 and DH_METHOD (eg. by ENGINE implementations) to override the normal
1643 software implementations. For DSA and DH, parameter generation can
1644 also be overriden by providing the appropriate method callbacks.
1647 *) Change the "progress" mechanism used in key-generation and
1648 primality testing to functions that take a new BN_GENCB pointer in
1649 place of callback/argument pairs. The new API functions have "_ex"
1650 postfixes and the older functions are reimplemented as wrappers for
1651 the new ones. The OPENSSL_NO_DEPRECATED symbol can be used to hide
1652 declarations of the old functions to help (graceful) attempts to
1653 migrate to the new functions. Also, the new key-generation API
1654 functions operate on a caller-supplied key-structure and return
1655 success/failure rather than returning a key or NULL - this is to
1656 help make "keygen" another member function of RSA_METHOD etc.
1658 Example for using the new callback interface:
1660 int (*my_callback)(int a, int b, BN_GENCB *cb) = ...;
1664 BN_GENCB_set(&my_cb, my_callback, my_arg);
1666 return BN_is_prime_ex(some_bignum, BN_prime_checks, NULL, &cb);
1667 /* For the meaning of a, b in calls to my_callback(), see the
1668 * documentation of the function that calls the callback.
1669 * cb will point to my_cb; my_arg can be retrieved as cb->arg.
1670 * my_callback should return 1 if it wants BN_is_prime_ex()
1671 * to continue, or 0 to stop.
1676 *) Change the ZLIB compression method to be stateful, and make it
1677 available to TLS with the number defined in
1678 draft-ietf-tls-compression-04.txt.
1681 *) Add the ASN.1 structures and functions for CertificatePair, which
1682 is defined as follows (according to X.509_4thEditionDraftV6.pdf):
1684 CertificatePair ::= SEQUENCE {
1685 forward [0] Certificate OPTIONAL,
1686 reverse [1] Certificate OPTIONAL,
1687 -- at least one of the pair shall be present -- }
1689 Also implement the PEM functions to read and write certificate
1690 pairs, and defined the PEM tag as "CERTIFICATE PAIR".
1692 This needed to be defined, mostly for the sake of the LDAP
1693 attribute crossCertificatePair, but may prove useful elsewhere as
1697 *) Make it possible to inhibit symlinking of shared libraries in
1698 Makefile.shared, for Cygwin's sake.
1701 *) Extend the BIGNUM API by creating a function
1702 void BN_set_negative(BIGNUM *a, int neg);
1703 and a macro that behave like
1704 int BN_is_negative(const BIGNUM *a);
1706 to avoid the need to access 'a->neg' directly in applications.
1709 *) Implement fast modular reduction for pseudo-Mersenne primes
1710 used in NIST curves (crypto/bn/bn_nist.c, crypto/ec/ecp_nist.c).
1711 EC_GROUP_new_curve_GFp() will now automatically use this
1713 [Nils Larsch <nla@trustcenter.de>]
1715 *) Add new lock type (CRYPTO_LOCK_BN).
1718 *) Change the ENGINE framework to automatically load engines
1719 dynamically from specific directories unless they could be
1720 found to already be built in or loaded. Move all the
1721 current engines except for the cryptodev one to a new
1723 The engines in engines/ are built as shared libraries if
1724 the "shared" options was given to ./Configure or ./config.
1725 Otherwise, they are inserted in libcrypto.a.
1726 /usr/local/ssl/engines is the default directory for dynamic
1727 engines, but that can be overriden at configure time through
1728 the usual use of --prefix and/or --openssldir, and at run
1729 time with the environment variable OPENSSL_ENGINES.
1730 [Geoff Thorpe and Richard Levitte]
1732 *) Add Makefile.shared, a helper makefile to build shared
1733 libraries. Addapt Makefile.org.
1736 *) Add version info to Win32 DLLs.
1737 [Peter 'Luna' Runestig" <peter@runestig.com>]
1739 *) Add new 'medium level' PKCS#12 API. Certificates and keys
1740 can be added using this API to created arbitrary PKCS#12
1741 files while avoiding the low level API.
1743 New options to PKCS12_create(), key or cert can be NULL and
1744 will then be omitted from the output file. The encryption
1745 algorithm NIDs can be set to -1 for no encryption, the mac
1746 iteration count can be set to 0 to omit the mac.
1748 Enhance pkcs12 utility by making the -nokeys and -nocerts
1749 options work when creating a PKCS#12 file. New option -nomac
1750 to omit the mac, NONE can be set for an encryption algorithm.
1751 New code is modified to use the enhanced PKCS12_create()
1752 instead of the low level API.
1755 *) Extend ASN1 encoder to support indefinite length constructed
1756 encoding. This can output sequences tags and octet strings in
1757 this form. Modify pk7_asn1.c to support indefinite length
1758 encoding. This is experimental and needs additional code to
1759 be useful, such as an ASN1 bio and some enhanced streaming
1762 Extend template encode functionality so that tagging is passed
1763 down to the template encoder.
1766 *) Let 'openssl req' fail if an argument to '-newkey' is not
1767 recognized instead of using RSA as a default.
1770 *) Add support for ECC-based ciphersuites from draft-ietf-tls-ecc-01.txt.
1771 As these are not official, they are not included in "ALL";
1772 the "ECCdraft" ciphersuite group alias can be used to select them.
1773 [Vipul Gupta and Sumit Gupta (Sun Microsystems Laboratories)]
1775 *) Add ECDH engine support.
1776 [Nils Gura and Douglas Stebila (Sun Microsystems Laboratories)]
1778 *) Add ECDH in new directory crypto/ecdh/.
1779 [Douglas Stebila (Sun Microsystems Laboratories)]
1781 *) Let BN_rand_range() abort with an error after 100 iterations
1782 without success (which indicates a broken PRNG).
1785 *) Change BN_mod_sqrt() so that it verifies that the input value
1786 is really the square of the return value. (Previously,
1787 BN_mod_sqrt would show GIGO behaviour.)
1790 *) Add named elliptic curves over binary fields from X9.62, SECG,
1791 and WAP/WTLS; add OIDs that were still missing.
1793 [Sheueling Chang Shantz and Douglas Stebila
1794 (Sun Microsystems Laboratories)]
1796 *) Extend the EC library for elliptic curves over binary fields
1797 (new files ec2_smpl.c, ec2_smpt.c, ec2_mult.c in crypto/ec/).
1800 EC_GF2m_simple_method
1804 EC_GROUP_new_curve_GF2m
1805 EC_GROUP_set_curve_GF2m
1806 EC_GROUP_get_curve_GF2m
1807 EC_POINT_set_affine_coordinates_GF2m
1808 EC_POINT_get_affine_coordinates_GF2m
1809 EC_POINT_set_compressed_coordinates_GF2m
1811 Point compression for binary fields is disabled by default for
1812 patent reasons (compile with OPENSSL_EC_BIN_PT_COMP defined to
1815 As binary polynomials are represented as BIGNUMs, various members
1816 of the EC_GROUP and EC_POINT data structures can be shared
1817 between the implementations for prime fields and binary fields;
1818 the above ..._GF2m functions (except for EX_GROUP_new_curve_GF2m)
1819 are essentially identical to their ..._GFp counterparts.
1820 (For simplicity, the '..._GFp' prefix has been dropped from
1821 various internal method names.)
1823 An internal 'field_div' method (similar to 'field_mul' and
1824 'field_sqr') has been added; this is used only for binary fields.
1826 [Sheueling Chang Shantz and Douglas Stebila
1827 (Sun Microsystems Laboratories)]
1829 *) Optionally dispatch EC_POINT_mul(), EC_POINT_precompute_mult()
1830 through methods ('mul', 'precompute_mult').
1832 The generic implementations (now internally called 'ec_wNAF_mul'
1833 and 'ec_wNAF_precomputed_mult') remain the default if these
1834 methods are undefined.
1836 [Sheueling Chang Shantz and Douglas Stebila
1837 (Sun Microsystems Laboratories)]
1839 *) New function EC_GROUP_get_degree, which is defined through
1840 EC_METHOD. For curves over prime fields, this returns the bit
1841 length of the modulus.
1843 [Sheueling Chang Shantz and Douglas Stebila
1844 (Sun Microsystems Laboratories)]
1846 *) New functions EC_GROUP_dup, EC_POINT_dup.
1847 (These simply call ..._new and ..._copy).
1849 [Sheueling Chang Shantz and Douglas Stebila
1850 (Sun Microsystems Laboratories)]
1852 *) Add binary polynomial arithmetic software in crypto/bn/bn_gf2m.c.
1853 Polynomials are represented as BIGNUMs (where the sign bit is not
1854 used) in the following functions [macros]:
1857 BN_GF2m_sub [= BN_GF2m_add]
1858 BN_GF2m_mod [wrapper for BN_GF2m_mod_arr]
1859 BN_GF2m_mod_mul [wrapper for BN_GF2m_mod_mul_arr]
1860 BN_GF2m_mod_sqr [wrapper for BN_GF2m_mod_sqr_arr]
1862 BN_GF2m_mod_exp [wrapper for BN_GF2m_mod_exp_arr]
1863 BN_GF2m_mod_sqrt [wrapper for BN_GF2m_mod_sqrt_arr]
1864 BN_GF2m_mod_solve_quad [wrapper for BN_GF2m_mod_solve_quad_arr]
1865 BN_GF2m_cmp [= BN_ucmp]
1867 (Note that only the 'mod' functions are actually for fields GF(2^m).
1868 BN_GF2m_add() is misnomer, but this is for the sake of consistency.)
1870 For some functions, an the irreducible polynomial defining a
1871 field can be given as an 'unsigned int[]' with strictly
1872 decreasing elements giving the indices of those bits that are set;
1873 i.e., p[] represents the polynomial
1874 f(t) = t^p[0] + t^p[1] + ... + t^p[k]
1876 p[0] > p[1] > ... > p[k] = 0.
1877 This applies to the following functions:
1882 BN_GF2m_mod_inv_arr [wrapper for BN_GF2m_mod_inv]
1883 BN_GF2m_mod_div_arr [wrapper for BN_GF2m_mod_div]
1885 BN_GF2m_mod_sqrt_arr
1886 BN_GF2m_mod_solve_quad_arr
1890 Conversion can be performed by the following functions:
1895 bntest.c has additional tests for binary polynomial arithmetic.
1897 Two implementations for BN_GF2m_mod_div() are available.
1898 The default algorithm simply uses BN_GF2m_mod_inv() and
1899 BN_GF2m_mod_mul(). The alternative algorithm is compiled in only
1900 if OPENSSL_SUN_GF2M_DIV is defined (patent pending; read the
1901 copyright notice in crypto/bn/bn_gf2m.c before enabling it).
1903 [Sheueling Chang Shantz and Douglas Stebila
1904 (Sun Microsystems Laboratories)]
1906 *) Add new error code 'ERR_R_DISABLED' that can be used when some
1907 functionality is disabled at compile-time.
1908 [Douglas Stebila <douglas.stebila@sun.com>]
1910 *) Change default behaviour of 'openssl asn1parse' so that more
1911 information is visible when viewing, e.g., a certificate:
1913 Modify asn1_parse2 (crypto/asn1/asn1_par.c) so that in non-'dump'
1914 mode the content of non-printable OCTET STRINGs is output in a
1915 style similar to INTEGERs, but with '[HEX DUMP]' prepended to
1916 avoid the appearance of a printable string.
1917 [Nils Larsch <nla@trustcenter.de>]
1919 *) Add 'asn1_flag' and 'asn1_form' member to EC_GROUP with access
1921 EC_GROUP_set_asn1_flag()
1922 EC_GROUP_get_asn1_flag()
1923 EC_GROUP_set_point_conversion_form()
1924 EC_GROUP_get_point_conversion_form()
1925 These control ASN1 encoding details:
1926 - Curves (i.e., groups) are encoded explicitly unless asn1_flag
1927 has been set to OPENSSL_EC_NAMED_CURVE.
1928 - Points are encoded in uncompressed form by default; options for
1929 asn1_for are as for point2oct, namely
1930 POINT_CONVERSION_COMPRESSED
1931 POINT_CONVERSION_UNCOMPRESSED
1932 POINT_CONVERSION_HYBRID
1934 Also add 'seed' and 'seed_len' members to EC_GROUP with access
1937 EC_GROUP_get0_seed()
1938 EC_GROUP_get_seed_len()
1939 This is used only for ASN1 purposes (so far).
1940 [Nils Larsch <nla@trustcenter.de>]
1942 *) Add 'field_type' member to EC_METHOD, which holds the NID
1943 of the appropriate field type OID. The new function
1944 EC_METHOD_get_field_type() returns this value.
1945 [Nils Larsch <nla@trustcenter.de>]
1950 EC_POINT_point2hex()
1951 EC_POINT_hex2point()
1952 providing useful interfaces to EC_POINT_point2oct() and
1953 EC_POINT_oct2point().
1954 [Nils Larsch <nla@trustcenter.de>]
1956 *) Change internals of the EC library so that the functions
1957 EC_GROUP_set_generator()
1958 EC_GROUP_get_generator()
1959 EC_GROUP_get_order()
1960 EC_GROUP_get_cofactor()
1961 are implemented directly in crypto/ec/ec_lib.c and not dispatched
1962 to methods, which would lead to unnecessary code duplication when
1963 adding different types of curves.
1964 [Nils Larsch <nla@trustcenter.de> with input by Bodo Moeller]
1966 *) Implement compute_wNAF (crypto/ec/ec_mult.c) without BIGNUM
1967 arithmetic, and such that modified wNAFs are generated
1968 (which avoid length expansion in many cases).
1971 *) Add a function EC_GROUP_check_discriminant() (defined via
1972 EC_METHOD) that verifies that the curve discriminant is non-zero.
1974 Add a function EC_GROUP_check() that makes some sanity tests
1975 on a EC_GROUP, its generator and order. This includes
1976 EC_GROUP_check_discriminant().
1977 [Nils Larsch <nla@trustcenter.de>]
1979 *) Add ECDSA in new directory crypto/ecdsa/.
1981 Add applications 'openssl ecparam' and 'openssl ecdsa'
1982 (these are based on 'openssl dsaparam' and 'openssl dsa').
1984 ECDSA support is also included in various other files across the
1985 library. Most notably,
1986 - 'openssl req' now has a '-newkey ecdsa:file' option;
1987 - EVP_PKCS82PKEY (crypto/evp/evp_pkey.c) now can handle ECDSA;
1988 - X509_PUBKEY_get (crypto/asn1/x_pubkey.c) and
1989 d2i_PublicKey (crypto/asn1/d2i_pu.c) have been modified to make
1990 them suitable for ECDSA where domain parameters must be
1991 extracted before the specific public key;
1992 - ECDSA engine support has been added.
1993 [Nils Larsch <nla@trustcenter.de>]
1995 *) Include some named elliptic curves, and add OIDs from X9.62,
1996 SECG, and WAP/WTLS. Each curve can be obtained from the new
1998 EC_GROUP_new_by_curve_name(),
1999 and the list of available named curves can be obtained with
2000 EC_get_builtin_curves().
2001 Also add a 'curve_name' member to EC_GROUP objects, which can be
2003 EC_GROUP_set_curve_name()
2004 EC_GROUP_get_curve_name()
2005 [Nils Larsch <larsch@trustcenter.de, Bodo Moeller]
2007 *) Remove a few calls to bn_wexpand() in BN_sqr() (the one in there
2008 was actually never needed) and in BN_mul(). The removal in BN_mul()
2009 required a small change in bn_mul_part_recursive() and the addition
2010 of the functions bn_cmp_part_words(), bn_sub_part_words() and
2011 bn_add_part_words(), which do the same thing as bn_cmp_words(),
2012 bn_sub_words() and bn_add_words() except they take arrays with
2016 Changes between 0.9.7m and 0.9.7n [xx XXX xxxx]
2018 *) In the SSL/TLS server implementation, be strict about session ID
2019 context matching (which matters if an application uses a single
2020 external cache for different purposes). Previously,
2021 out-of-context reuse was forbidden only if SSL_VERIFY_PEER was
2022 set. This did ensure strict client verification, but meant that,
2023 with applications using a single external cache for quite
2024 different requirements, clients could circumvent ciphersuite
2025 restrictions for a given session ID context by starting a session
2026 in a different context.
2029 Changes between 0.9.7l and 0.9.7m [23 Feb 2007]
2031 *) Cleanse PEM buffers before freeing them since they may contain
2033 [Benjamin Bennett <ben@psc.edu>]
2035 *) Include "!eNULL" in SSL_DEFAULT_CIPHER_LIST to make sure that
2036 a ciphersuite string such as "DEFAULT:RSA" cannot enable
2037 authentication-only ciphersuites.
2040 *) Since AES128 and AES256 share a single mask bit in the logic of
2041 ssl/ssl_ciph.c, the code for masking out disabled ciphers needs a
2042 kludge to work properly if AES128 is available and AES256 isn't.
2045 *) Expand security boundary to match 1.1.1 module.
2048 *) Remove redundant features: hash file source, editing of test vectors
2049 modify fipsld to use external fips_premain.c signature.
2052 *) New perl script mkfipsscr.pl to create shell scripts or batch files to
2053 run algorithm test programs.
2056 *) Make algorithm test programs more tolerant of whitespace.
2059 *) Have SSL/TLS server implementation tolerate "mismatched" record
2060 protocol version while receiving ClientHello even if the
2061 ClientHello is fragmented. (The server can't insist on the
2062 particular protocol version it has chosen before the ServerHello
2063 message has informed the client about his choice.)
2066 *) Load error codes if they are not already present instead of using a
2067 static variable. This allows them to be cleanly unloaded and reloaded.
2070 Changes between 0.9.7k and 0.9.7l [28 Sep 2006]
2072 *) Introduce limits to prevent malicious keys being able to
2073 cause a denial of service. (CVE-2006-2940)
2074 [Steve Henson, Bodo Moeller]
2076 *) Fix ASN.1 parsing of certain invalid structures that can result
2077 in a denial of service. (CVE-2006-2937) [Steve Henson]
2079 *) Fix buffer overflow in SSL_get_shared_ciphers() function.
2080 (CVE-2006-3738) [Tavis Ormandy and Will Drewry, Google Security Team]
2082 *) Fix SSL client code which could crash if connecting to a
2083 malicious SSLv2 server. (CVE-2006-4343)
2084 [Tavis Ormandy and Will Drewry, Google Security Team]
2086 *) Change ciphersuite string processing so that an explicit
2087 ciphersuite selects this one ciphersuite (so that "AES256-SHA"
2088 will no longer include "AES128-SHA"), and any other similar
2089 ciphersuite (same bitmap) from *other* protocol versions (so that
2090 "RC4-MD5" will still include both the SSL 2.0 ciphersuite and the
2091 SSL 3.0/TLS 1.0 ciphersuite). This is a backport combining
2092 changes from 0.9.8b and 0.9.8d.
2095 Changes between 0.9.7j and 0.9.7k [05 Sep 2006]
2097 *) Avoid PKCS #1 v1.5 signature attack discovered by Daniel Bleichenbacher
2098 (CVE-2006-4339) [Ben Laurie and Google Security Team]
2100 *) Change the Unix randomness entropy gathering to use poll() when
2101 possible instead of select(), since the latter has some
2102 undesirable limitations.
2103 [Darryl Miles via Richard Levitte and Bodo Moeller]
2105 *) Disable rogue ciphersuites:
2107 - SSLv2 0x08 0x00 0x80 ("RC4-64-MD5")
2108 - SSLv3/TLSv1 0x00 0x61 ("EXP1024-RC2-CBC-MD5")
2109 - SSLv3/TLSv1 0x00 0x60 ("EXP1024-RC4-MD5")
2111 The latter two were purportedly from
2112 draft-ietf-tls-56-bit-ciphersuites-0[01].txt, but do not really
2115 Also deactive the remaining ciphersuites from
2116 draft-ietf-tls-56-bit-ciphersuites-01.txt. These are just as
2117 unofficial, and the ID has long expired.
2120 *) Fix RSA blinding Heisenbug (problems sometimes occured on
2121 dual-core machines) and other potential thread-safety issues.
2124 Changes between 0.9.7i and 0.9.7j [04 May 2006]
2126 *) Adapt fipsld and the build system to link against the validated FIPS
2127 module in FIPS mode.
2130 *) Fixes for VC++ 2005 build under Windows.
2133 *) Add new Windows build target VC-32-GMAKE for VC++. This uses GNU make
2134 from a Windows bash shell such as MSYS. It is autodetected from the
2135 "config" script when run from a VC++ environment. Modify standard VC++
2136 build to use fipscanister.o from the GNU make build.
2139 Changes between 0.9.7h and 0.9.7i [14 Oct 2005]
2141 *) Wrapped the definition of EVP_MAX_MD_SIZE in a #ifdef OPENSSL_FIPS.
2142 The value now differs depending on if you build for FIPS or not.
2143 BEWARE! A program linked with a shared FIPSed libcrypto can't be
2144 safely run with a non-FIPSed libcrypto, as it may crash because of
2145 the difference induced by this change.
2148 Changes between 0.9.7g and 0.9.7h [11 Oct 2005]
2150 *) Remove the functionality of SSL_OP_MSIE_SSLV2_RSA_PADDING
2151 (part of SSL_OP_ALL). This option used to disable the
2152 countermeasure against man-in-the-middle protocol-version
2153 rollback in the SSL 2.0 server implementation, which is a bad
2154 idea. (CVE-2005-2969)
2156 [Bodo Moeller; problem pointed out by Yutaka Oiwa (Research Center
2157 for Information Security, National Institute of Advanced Industrial
2158 Science and Technology [AIST], Japan)]
2160 *) Minimal support for X9.31 signatures and PSS padding modes. This is
2161 mainly for FIPS compliance and not fully integrated at this stage.
2164 *) For DSA signing, unless DSA_FLAG_NO_EXP_CONSTTIME is set, perform
2165 the exponentiation using a fixed-length exponent. (Otherwise,
2166 the information leaked through timing could expose the secret key
2167 after many signatures; cf. Bleichenbacher's attack on DSA with
2171 *) Make a new fixed-window mod_exp implementation the default for
2172 RSA, DSA, and DH private-key operations so that the sequence of
2173 squares and multiplies and the memory access pattern are
2174 independent of the particular secret key. This will mitigate
2175 cache-timing and potential related attacks.
2177 BN_mod_exp_mont_consttime() is the new exponentiation implementation,
2178 and this is automatically used by BN_mod_exp_mont() if the new flag
2179 BN_FLG_EXP_CONSTTIME is set for the exponent. RSA, DSA, and DH
2180 will use this BN flag for private exponents unless the flag
2181 RSA_FLAG_NO_EXP_CONSTTIME, DSA_FLAG_NO_EXP_CONSTTIME, or
2182 DH_FLAG_NO_EXP_CONSTTIME, respectively, is set.
2184 [Matthew D Wood (Intel Corp), with some changes by Bodo Moeller]
2186 *) Change the client implementation for SSLv23_method() and
2187 SSLv23_client_method() so that is uses the SSL 3.0/TLS 1.0
2188 Client Hello message format if the SSL_OP_NO_SSLv2 option is set.
2189 (Previously, the SSL 2.0 backwards compatible Client Hello
2190 message format would be used even with SSL_OP_NO_SSLv2.)
2193 *) Add support for smime-type MIME parameter in S/MIME messages which some
2197 *) New function BN_MONT_CTX_set_locked() to set montgomery parameters in
2198 a threadsafe manner. Modify rsa code to use new function and add calls
2199 to dsa and dh code (which had race conditions before).
2202 *) Include the fixed error library code in the C error file definitions
2203 instead of fixing them up at runtime. This keeps the error code
2204 structures constant.
2207 Changes between 0.9.7f and 0.9.7g [11 Apr 2005]
2209 [NB: OpenSSL 0.9.7h and later 0.9.7 patch levels were released after
2212 *) Fixes for newer kerberos headers. NB: the casts are needed because
2213 the 'length' field is signed on one version and unsigned on another
2214 with no (?) obvious way to tell the difference, without these VC++
2215 complains. Also the "definition" of FAR (blank) is no longer included
2216 nor is the error ENOMEM. KRB5_PRIVATE has to be set to 1 to pick up
2217 some needed definitions.
2220 *) Undo Cygwin change.
2223 *) Added support for proxy certificates according to RFC 3820.
2224 Because they may be a security thread to unaware applications,
2225 they must be explicitely allowed in run-time. See
2226 docs/HOWTO/proxy_certificates.txt for further information.
2229 Changes between 0.9.7e and 0.9.7f [22 Mar 2005]
2231 *) Use (SSL_RANDOM_VALUE - 4) bytes of pseudo random data when generating
2232 server and client random values. Previously
2233 (SSL_RANDOM_VALUE - sizeof(time_t)) would be used which would result in
2234 less random data when sizeof(time_t) > 4 (some 64 bit platforms).
2236 This change has negligible security impact because:
2238 1. Server and client random values still have 24 bytes of pseudo random
2241 2. Server and client random values are sent in the clear in the initial
2244 3. The master secret is derived using the premaster secret (48 bytes in
2245 size for static RSA ciphersuites) as well as client server and random
2248 The OpenSSL team would like to thank the UK NISCC for bringing this issue
2251 [Stephen Henson, reported by UK NISCC]
2253 *) Use Windows randomness collection on Cygwin.
2256 *) Fix hang in EGD/PRNGD query when communication socket is closed
2257 prematurely by EGD/PRNGD.
2258 [Darren Tucker <dtucker@zip.com.au> via Lutz Jänicke, resolves #1014]
2260 *) Prompt for pass phrases when appropriate for PKCS12 input format.
2263 *) Back-port of selected performance improvements from development
2264 branch, as well as improved support for PowerPC platforms.
2267 *) Add lots of checks for memory allocation failure, error codes to indicate
2268 failure and freeing up memory if a failure occurs.
2269 [Nauticus Networks SSL Team <openssl@nauticusnet.com>, Steve Henson]
2271 *) Add new -passin argument to dgst.
2274 *) Perform some character comparisons of different types in X509_NAME_cmp:
2275 this is needed for some certificates that reencode DNs into UTF8Strings
2276 (in violation of RFC3280) and can't or wont issue name rollover
2280 *) Make an explicit check during certificate validation to see that
2281 the CA setting in each certificate on the chain is correct. As a
2282 side effect always do the following basic checks on extensions,
2283 not just when there's an associated purpose to the check:
2285 - if there is an unhandled critical extension (unless the user
2286 has chosen to ignore this fault)
2287 - if the path length has been exceeded (if one is set at all)
2288 - that certain extensions fit the associated purpose (if one has
2292 Changes between 0.9.7d and 0.9.7e [25 Oct 2004]
2294 *) Avoid a race condition when CRLs are checked in a multi threaded
2295 environment. This would happen due to the reordering of the revoked
2296 entries during signature checking and serial number lookup. Now the
2297 encoding is cached and the serial number sort performed under a lock.
2298 Add new STACK function sk_is_sorted().
2301 *) Add Delta CRL to the extension code.
2304 *) Various fixes to s3_pkt.c so alerts are sent properly.
2305 [David Holmes <d.holmes@f5.com>]
2307 *) Reduce the chances of duplicate issuer name and serial numbers (in
2308 violation of RFC3280) using the OpenSSL certificate creation utilities.
2309 This is done by creating a random 64 bit value for the initial serial
2310 number when a serial number file is created or when a self signed
2311 certificate is created using 'openssl req -x509'. The initial serial
2312 number file is created using 'openssl x509 -next_serial' in CA.pl
2313 rather than being initialized to 1.
2316 Changes between 0.9.7c and 0.9.7d [17 Mar 2004]
2318 *) Fix null-pointer assignment in do_change_cipher_spec() revealed
2319 by using the Codenomicon TLS Test Tool (CVE-2004-0079)
2320 [Joe Orton, Steve Henson]
2322 *) Fix flaw in SSL/TLS handshaking when using Kerberos ciphersuites
2324 [Joe Orton, Steve Henson]
2326 *) Make it possible to have multiple active certificates with the same
2327 subject in the CA index file. This is done only if the keyword
2328 'unique_subject' is set to 'no' in the main CA section (default
2329 if 'CA_default') of the configuration file. The value is saved
2330 with the database itself in a separate index attribute file,
2331 named like the index file with '.attr' appended to the name.
2334 *) X509 verify fixes. Disable broken certificate workarounds when
2335 X509_V_FLAGS_X509_STRICT is set. Check CRL issuer has cRLSign set if
2336 keyUsage extension present. Don't accept CRLs with unhandled critical
2337 extensions: since verify currently doesn't process CRL extensions this
2338 rejects a CRL with *any* critical extensions. Add new verify error codes
2342 *) When creating an OCSP nonce use an OCTET STRING inside the extnValue.
2343 A clarification of RFC2560 will require the use of OCTET STRINGs and
2344 some implementations cannot handle the current raw format. Since OpenSSL
2345 copies and compares OCSP nonces as opaque blobs without any attempt at
2346 parsing them this should not create any compatibility issues.
2349 *) New md flag EVP_MD_CTX_FLAG_REUSE this allows md_data to be reused when
2350 calling EVP_MD_CTX_copy_ex() to avoid calling OPENSSL_malloc(). Without
2351 this HMAC (and other) operations are several times slower than OpenSSL
2355 *) Print out GeneralizedTime and UTCTime in ASN1_STRING_print_ex().
2356 [Peter Sylvester <Peter.Sylvester@EdelWeb.fr>]
2358 *) Use the correct content when signing type "other".
2361 Changes between 0.9.7b and 0.9.7c [30 Sep 2003]
2363 *) Fix various bugs revealed by running the NISCC test suite:
2365 Stop out of bounds reads in the ASN1 code when presented with
2366 invalid tags (CVE-2003-0543 and CVE-2003-0544).
2368 Free up ASN1_TYPE correctly if ANY type is invalid (CVE-2003-0545).
2370 If verify callback ignores invalid public key errors don't try to check
2371 certificate signature with the NULL public key.
2375 *) New -ignore_err option in ocsp application to stop the server
2376 exiting on the first error in a request.
2379 *) In ssl3_accept() (ssl/s3_srvr.c) only accept a client certificate
2380 if the server requested one: as stated in TLS 1.0 and SSL 3.0
2384 *) In ssl3_get_client_hello() (ssl/s3_srvr.c), tolerate additional
2385 extra data after the compression methods not only for TLS 1.0
2386 but also for SSL 3.0 (as required by the specification).
2387 [Bodo Moeller; problem pointed out by Matthias Loepfe]
2389 *) Change X509_certificate_type() to mark the key as exported/exportable
2390 when it's 512 *bits* long, not 512 bytes.
2393 *) Change AES_cbc_encrypt() so it outputs exact multiple of
2394 blocks during encryption.
2397 *) Various fixes to base64 BIO and non blocking I/O. On write
2398 flushes were not handled properly if the BIO retried. On read
2399 data was not being buffered properly and had various logic bugs.
2400 This also affects blocking I/O when the data being decoded is a
2404 *) Various S/MIME bugfixes and compatibility changes:
2405 output correct application/pkcs7 MIME type if
2406 PKCS7_NOOLDMIMETYPE is set. Tolerate some broken signatures.
2407 Output CR+LF for EOL if PKCS7_CRLFEOL is set (this makes opening
2408 of files as .eml work). Correctly handle very long lines in MIME
2412 Changes between 0.9.7a and 0.9.7b [10 Apr 2003]
2414 *) Countermeasure against the Klima-Pokorny-Rosa extension of
2415 Bleichbacher's attack on PKCS #1 v1.5 padding: treat
2416 a protocol version number mismatch like a decryption error
2417 in ssl3_get_client_key_exchange (ssl/s3_srvr.c).
2420 *) Turn on RSA blinding by default in the default implementation
2421 to avoid a timing attack. Applications that don't want it can call
2422 RSA_blinding_off() or use the new flag RSA_FLAG_NO_BLINDING.
2423 They would be ill-advised to do so in most cases.
2424 [Ben Laurie, Steve Henson, Geoff Thorpe, Bodo Moeller]
2426 *) Change RSA blinding code so that it works when the PRNG is not
2427 seeded (in this case, the secret RSA exponent is abused as
2428 an unpredictable seed -- if it is not unpredictable, there
2429 is no point in blinding anyway). Make RSA blinding thread-safe
2430 by remembering the creator's thread ID in rsa->blinding and
2431 having all other threads use local one-time blinding factors
2432 (this requires more computation than sharing rsa->blinding, but
2433 avoids excessive locking; and if an RSA object is not shared
2434 between threads, blinding will still be very fast).
2437 *) Fixed a typo bug that would cause ENGINE_set_default() to set an
2438 ENGINE as defaults for all supported algorithms irrespective of
2439 the 'flags' parameter. 'flags' is now honoured, so applications
2440 should make sure they are passing it correctly.
2443 *) Target "mingw" now allows native Windows code to be generated in
2444 the Cygwin environment as well as with the MinGW compiler.
2447 Changes between 0.9.7 and 0.9.7a [19 Feb 2003]
2449 *) In ssl3_get_record (ssl/s3_pkt.c), minimize information leaked
2450 via timing by performing a MAC computation even if incorrrect
2451 block cipher padding has been found. This is a countermeasure
2452 against active attacks where the attacker has to distinguish
2453 between bad padding and a MAC verification error. (CVE-2003-0078)
2455 [Bodo Moeller; problem pointed out by Brice Canvel (EPFL),
2456 Alain Hiltgen (UBS), Serge Vaudenay (EPFL), and
2457 Martin Vuagnoux (EPFL, Ilion)]
2459 *) Make the no-err option work as intended. The intention with no-err
2460 is not to have the whole error stack handling routines removed from
2461 libcrypto, it's only intended to remove all the function name and
2462 reason texts, thereby removing some of the footprint that may not
2463 be interesting if those errors aren't displayed anyway.
2465 NOTE: it's still possible for any application or module to have it's
2466 own set of error texts inserted. The routines are there, just not
2467 used by default when no-err is given.
2470 *) Add support for FreeBSD on IA64.
2471 [dirk.meyer@dinoex.sub.org via Richard Levitte, resolves #454]
2473 *) Adjust DES_cbc_cksum() so it returns the same value as the MIT
2474 Kerberos function mit_des_cbc_cksum(). Before this change,
2475 the value returned by DES_cbc_cksum() was like the one from
2476 mit_des_cbc_cksum(), except the bytes were swapped.
2477 [Kevin Greaney <Kevin.Greaney@hp.com> and Richard Levitte]
2479 *) Allow an application to disable the automatic SSL chain building.
2480 Before this a rather primitive chain build was always performed in
2481 ssl3_output_cert_chain(): an application had no way to send the
2482 correct chain if the automatic operation produced an incorrect result.
2484 Now the chain builder is disabled if either:
2486 1. Extra certificates are added via SSL_CTX_add_extra_chain_cert().
2488 2. The mode flag SSL_MODE_NO_AUTO_CHAIN is set.
2490 The reasoning behind this is that an application would not want the
2491 auto chain building to take place if extra chain certificates are
2492 present and it might also want a means of sending no additional
2493 certificates (for example the chain has two certificates and the
2497 *) Add the possibility to build without the ENGINE framework.
2498 [Steven Reddie <smr@essemer.com.au> via Richard Levitte]
2500 *) Under Win32 gmtime() can return NULL: check return value in
2501 OPENSSL_gmtime(). Add error code for case where gmtime() fails.
2504 *) DSA routines: under certain error conditions uninitialized BN objects
2505 could be freed. Solution: make sure initialization is performed early
2506 enough. (Reported and fix supplied by Ivan D Nestlerode <nestler@MIT.EDU>,
2507 Nils Larsch <nla@trustcenter.de> via PR#459)
2510 *) Another fix for SSLv2 session ID handling: the session ID was incorrectly
2511 checked on reconnect on the client side, therefore session resumption
2512 could still fail with a "ssl session id is different" error. This
2513 behaviour is masked when SSL_OP_ALL is used due to
2514 SSL_OP_MICROSOFT_SESS_ID_BUG being set.
2515 Behaviour observed by Crispin Flowerday <crispin@flowerday.cx> as
2516 followup to PR #377.
2519 *) IA-32 assembler support enhancements: unified ELF targets, support
2520 for SCO/Caldera platforms, fix for Cygwin shared build.
2523 *) Add support for FreeBSD on sparc64. As a consequence, support for
2524 FreeBSD on non-x86 processors is separate from x86 processors on
2525 the config script, much like the NetBSD support.
2526 [Richard Levitte & Kris Kennaway <kris@obsecurity.org>]
2528 Changes between 0.9.6h and 0.9.7 [31 Dec 2002]
2530 [NB: OpenSSL 0.9.6i and later 0.9.6 patch levels were released after
2533 *) Fix session ID handling in SSLv2 client code: the SERVER FINISHED
2534 code (06) was taken as the first octet of the session ID and the last
2535 octet was ignored consequently. As a result SSLv2 client side session
2536 caching could not have worked due to the session ID mismatch between
2538 Behaviour observed by Crispin Flowerday <crispin@flowerday.cx> as
2542 *) Change the declaration of needed Kerberos libraries to use EX_LIBS
2543 instead of the special (and badly supported) LIBKRB5. LIBKRB5 is
2547 *) The hw_ncipher.c engine requires dynamic locks. Unfortunately, it
2548 seems that in spite of existing for more than a year, many application
2549 author have done nothing to provide the necessary callbacks, which
2550 means that this particular engine will not work properly anywhere.
2551 This is a very unfortunate situation which forces us, in the name
2552 of usability, to give the hw_ncipher.c a static lock, which is part
2554 NOTE: This is for the 0.9.7 series ONLY. This hack will never
2555 appear in 0.9.8 or later. We EXPECT application authors to have
2556 dealt properly with this when 0.9.8 is released (unless we actually
2557 make such changes in the libcrypto locking code that changes will
2558 have to be made anyway).
2561 *) In asn1_d2i_read_bio() repeatedly call BIO_read() until all content
2562 octets have been read, EOF or an error occurs. Without this change
2563 some truncated ASN1 structures will not produce an error.
2566 *) Disable Heimdal support, since it hasn't been fully implemented.
2567 Still give the possibility to force the use of Heimdal, but with
2568 warnings and a request that patches get sent to openssl-dev.
2571 *) Add the VC-CE target, introduce the WINCE sysname, and add
2572 INSTALL.WCE and appropriate conditionals to make it build.
2573 [Steven Reddie <smr@essemer.com.au> via Richard Levitte]
2575 *) Change the DLL names for Cygwin to cygcrypto-x.y.z.dll and
2576 cygssl-x.y.z.dll, where x, y and z are the major, minor and
2577 edit numbers of the version.
2578 [Corinna Vinschen <vinschen@redhat.com> and Richard Levitte]
2580 *) Introduce safe string copy and catenation functions
2581 (BUF_strlcpy() and BUF_strlcat()).
2582 [Ben Laurie (CHATS) and Richard Levitte]
2584 *) Avoid using fixed-size buffers for one-line DNs.
2585 [Ben Laurie (CHATS)]
2587 *) Add BUF_MEM_grow_clean() to avoid information leakage when
2588 resizing buffers containing secrets, and use where appropriate.
2589 [Ben Laurie (CHATS)]
2591 *) Avoid using fixed size buffers for configuration file location.
2592 [Ben Laurie (CHATS)]
2594 *) Avoid filename truncation for various CA files.
2595 [Ben Laurie (CHATS)]
2597 *) Use sizeof in preference to magic numbers.
2598 [Ben Laurie (CHATS)]
2600 *) Avoid filename truncation in cert requests.
2601 [Ben Laurie (CHATS)]
2603 *) Add assertions to check for (supposedly impossible) buffer
2605 [Ben Laurie (CHATS)]
2607 *) Don't cache truncated DNS entries in the local cache (this could
2608 potentially lead to a spoofing attack).
2609 [Ben Laurie (CHATS)]
2611 *) Fix various buffers to be large enough for hex/decimal
2612 representations in a platform independent manner.
2613 [Ben Laurie (CHATS)]
2615 *) Add CRYPTO_realloc_clean() to avoid information leakage when
2616 resizing buffers containing secrets, and use where appropriate.
2617 [Ben Laurie (CHATS)]
2619 *) Add BIO_indent() to avoid much slightly worrying code to do
2621 [Ben Laurie (CHATS)]
2623 *) Convert sprintf()/BIO_puts() to BIO_printf().
2624 [Ben Laurie (CHATS)]
2626 *) buffer_gets() could terminate with the buffer only half
2628 [Ben Laurie (CHATS)]
2630 *) Add assertions to prevent user-supplied crypto functions from
2631 overflowing internal buffers by having large block sizes, etc.
2632 [Ben Laurie (CHATS)]
2634 *) New OPENSSL_assert() macro (similar to assert(), but enabled
2636 [Ben Laurie (CHATS)]
2638 *) Eliminate unused copy of key in RC4.
2639 [Ben Laurie (CHATS)]
2641 *) Eliminate unused and incorrectly sized buffers for IV in pem.h.
2642 [Ben Laurie (CHATS)]
2644 *) Fix off-by-one error in EGD path.
2645 [Ben Laurie (CHATS)]
2647 *) If RANDFILE path is too long, ignore instead of truncating.
2648 [Ben Laurie (CHATS)]
2650 *) Eliminate unused and incorrectly sized X.509 structure
2652 [Ben Laurie (CHATS)]
2654 *) Eliminate unused and dangerous function knumber().
2655 [Ben Laurie (CHATS)]
2657 *) Eliminate unused and dangerous structure, KSSL_ERR.
2658 [Ben Laurie (CHATS)]
2660 *) Protect against overlong session ID context length in an encoded
2661 session object. Since these are local, this does not appear to be
2663 [Ben Laurie (CHATS)]
2665 *) Change from security patch (see 0.9.6e below) that did not affect
2666 the 0.9.6 release series:
2668 Remote buffer overflow in SSL3 protocol - an attacker could
2669 supply an oversized master key in Kerberos-enabled versions.
2671 [Ben Laurie (CHATS)]
2673 *) Change the SSL kerb5 codes to match RFC 2712.
2676 *) Make -nameopt work fully for req and add -reqopt switch.
2677 [Michael Bell <michael.bell@rz.hu-berlin.de>, Steve Henson]
2679 *) The "block size" for block ciphers in CFB and OFB mode should be 1.
2680 [Steve Henson, reported by Yngve Nysaeter Pettersen <yngve@opera.com>]
2682 *) Make sure tests can be performed even if the corresponding algorithms
2683 have been removed entirely. This was also the last step to make
2684 OpenSSL compilable with DJGPP under all reasonable conditions.
2685 [Richard Levitte, Doug Kaufman <dkaufman@rahul.net>]
2687 *) Add cipher selection rules COMPLEMENTOFALL and COMPLEMENTOFDEFAULT
2688 to allow version independent disabling of normally unselected ciphers,
2689 which may be activated as a side-effect of selecting a single cipher.
2691 (E.g., cipher list string "RSA" enables ciphersuites that are left
2692 out of "ALL" because they do not provide symmetric encryption.
2693 "RSA:!COMPLEMEMENTOFALL" avoids these unsafe ciphersuites.)
2694 [Lutz Jaenicke, Bodo Moeller]
2696 *) Add appropriate support for separate platform-dependent build
2697 directories. The recommended way to make a platform-dependent
2698 build directory is the following (tested on Linux), maybe with
2701 # Place yourself outside of the OpenSSL source tree. In
2702 # this example, the environment variable OPENSSL_SOURCE
2703 # is assumed to contain the absolute OpenSSL source directory.
2704 mkdir -p objtree/"`uname -s`-`uname -r`-`uname -m`"
2705 cd objtree/"`uname -s`-`uname -r`-`uname -m`"
2706 (cd $OPENSSL_SOURCE; find . -type f) | while read F; do
2707 mkdir -p `dirname $F`
2708 ln -s $OPENSSL_SOURCE/$F $F
2711 To be absolutely sure not to disturb the source tree, a "make clean"
2712 is a good thing. If it isn't successfull, don't worry about it,
2713 it probably means the source directory is very clean.
2716 *) Make sure any ENGINE control commands make local copies of string
2717 pointers passed to them whenever necessary. Otherwise it is possible
2718 the caller may have overwritten (or deallocated) the original string
2719 data when a later ENGINE operation tries to use the stored values.
2720 [Götz Babin-Ebell <babinebell@trustcenter.de>]
2722 *) Improve diagnostics in file reading and command-line digests.
2723 [Ben Laurie aided and abetted by Solar Designer <solar@openwall.com>]
2725 *) Add AES modes CFB and OFB to the object database. Correct an
2726 error in AES-CFB decryption.
2729 *) Remove most calls to EVP_CIPHER_CTX_cleanup() in evp_enc.c, this
2730 allows existing EVP_CIPHER_CTX structures to be reused after
2731 calling EVP_*Final(). This behaviour is used by encryption
2732 BIOs and some applications. This has the side effect that
2733 applications must explicitly clean up cipher contexts with
2734 EVP_CIPHER_CTX_cleanup() or they will leak memory.
2737 *) Check the values of dna and dnb in bn_mul_recursive before calling
2738 bn_mul_comba (a non zero value means the a or b arrays do not contain
2739 n2 elements) and fallback to bn_mul_normal if either is not zero.
2742 *) Fix escaping of non-ASCII characters when using the -subj option
2743 of the "openssl req" command line tool. (Robert Joop <joop@fokus.gmd.de>)
2746 *) Make object definitions compliant to LDAP (RFC2256): SN is the short
2747 form for "surname", serialNumber has no short form.
2748 Use "mail" as the short name for "rfc822Mailbox" according to RFC2798;
2749 therefore remove "mail" short name for "internet 7".
2750 The OID for unique identifiers in X509 certificates is
2751 x500UniqueIdentifier, not uniqueIdentifier.
2752 Some more OID additions. (Michael Bell <michael.bell@rz.hu-berlin.de>)
2755 *) Add an "init" command to the ENGINE config module and auto initialize
2756 ENGINEs. Without any "init" command the ENGINE will be initialized
2757 after all ctrl commands have been executed on it. If init=1 the
2758 ENGINE is initailized at that point (ctrls before that point are run
2759 on the uninitialized ENGINE and after on the initialized one). If
2760 init=0 then the ENGINE will not be iniatialized at all.
2763 *) Fix the 'app_verify_callback' interface so that the user-defined
2764 argument is actually passed to the callback: In the
2765 SSL_CTX_set_cert_verify_callback() prototype, the callback
2766 declaration has been changed from
2769 int (*cb)(X509_STORE_CTX *,void *);
2770 in ssl_verify_cert_chain (ssl/ssl_cert.c), the call
2771 i=s->ctx->app_verify_callback(&ctx)
2772 has been changed into
2773 i=s->ctx->app_verify_callback(&ctx, s->ctx->app_verify_arg).
2775 To update applications using SSL_CTX_set_cert_verify_callback(),
2776 a dummy argument can be added to their callback functions.
2777 [D. K. Smetters <smetters@parc.xerox.com>]
2779 *) Added the '4758cca' ENGINE to support IBM 4758 cards.
2780 [Maurice Gittens <maurice@gittens.nl>, touchups by Geoff Thorpe]
2782 *) Add and OPENSSL_LOAD_CONF define which will cause
2783 OpenSSL_add_all_algorithms() to load the openssl.cnf config file.
2784 This allows older applications to transparently support certain
2785 OpenSSL features: such as crypto acceleration and dynamic ENGINE loading.
2786 Two new functions OPENSSL_add_all_algorithms_noconf() which will never
2787 load the config file and OPENSSL_add_all_algorithms_conf() which will
2788 always load it have also been added.
2791 *) Add the OFB, CFB and CTR (all with 128 bit feedback) to AES.
2792 Adjust NIDs and EVP layer.
2793 [Stephen Sprunk <stephen@sprunk.org> and Richard Levitte]
2795 *) Config modules support in openssl utility.
2797 Most commands now load modules from the config file,
2798 though in a few (such as version) this isn't done
2799 because it couldn't be used for anything.
2801 In the case of ca and req the config file used is
2802 the same as the utility itself: that is the -config
2803 command line option can be used to specify an
2807 *) Move default behaviour from OPENSSL_config(). If appname is NULL
2808 use "openssl_conf" if filename is NULL use default openssl config file.
2811 *) Add an argument to OPENSSL_config() to allow the use of an alternative
2812 config section name. Add a new flag to tolerate a missing config file
2813 and move code to CONF_modules_load_file().
2816 *) Support for crypto accelerator cards from Accelerated Encryption
2817 Processing, www.aep.ie. (Use engine 'aep')
2818 The support was copied from 0.9.6c [engine] and adapted/corrected
2819 to work with the new engine framework.
2820 [AEP Inc. and Richard Levitte]
2822 *) Support for SureWare crypto accelerator cards from Baltimore
2823 Technologies. (Use engine 'sureware')
2824 The support was copied from 0.9.6c [engine] and adapted
2825 to work with the new engine framework.
2828 *) Have the CHIL engine fork-safe (as defined by nCipher) and actually
2829 make the newer ENGINE framework commands for the CHIL engine work.
2830 [Toomas Kiisk <vix@cyber.ee> and Richard Levitte]
2832 *) Make it possible to produce shared libraries on ReliantUNIX.
2833 [Robert Dahlem <Robert.Dahlem@ffm2.siemens.de> via Richard Levitte]
2835 *) Add the configuration target debug-linux-ppro.
2836 Make 'openssl rsa' use the general key loading routines
2837 implemented in apps.c, and make those routines able to
2838 handle the key format FORMAT_NETSCAPE and the variant
2840 [Toomas Kiisk <vix@cyber.ee> via Richard Levitte]
2842 *) Fix a crashbug and a logic bug in hwcrhk_load_pubkey().
2843 [Toomas Kiisk <vix@cyber.ee> via Richard Levitte]
2845 *) Add -keyform to rsautl, and document -engine.
2846 [Richard Levitte, inspired by Toomas Kiisk <vix@cyber.ee>]
2848 *) Change BIO_new_file (crypto/bio/bss_file.c) to use new
2849 BIO_R_NO_SUCH_FILE error code rather than the generic
2850 ERR_R_SYS_LIB error code if fopen() fails with ENOENT.
2853 *) Add new functions
2855 ERR_peek_last_error_line
2856 ERR_peek_last_error_line_data.
2857 These are similar to
2860 ERR_peek_error_line_data,
2861 but report on the latest error recorded rather than the first one
2862 still in the error queue.
2863 [Ben Laurie, Bodo Moeller]
2865 *) default_algorithms option in ENGINE config module. This allows things
2867 default_algorithms = ALL
2868 default_algorithms = RSA, DSA, RAND, CIPHERS, DIGESTS
2871 *) Prelminary ENGINE config module.
2874 *) New experimental application configuration code.
2877 *) Change the AES code to follow the same name structure as all other
2878 symmetric ciphers, and behave the same way. Move everything to
2879 the directory crypto/aes, thereby obsoleting crypto/rijndael.
2880 [Stephen Sprunk <stephen@sprunk.org> and Richard Levitte]
2882 *) SECURITY: remove unsafe setjmp/signal interaction from ui_openssl.c.
2883 [Ben Laurie and Theo de Raadt]
2885 *) Add option to output public keys in req command.
2886 [Massimiliano Pala madwolf@openca.org]
2888 *) Use wNAFs in EC_POINTs_mul() for improved efficiency
2889 (up to about 10% better than before for P-192 and P-224).
2892 *) New functions/macros
2894 SSL_CTX_set_msg_callback(ctx, cb)
2895 SSL_CTX_set_msg_callback_arg(ctx, arg)
2896 SSL_set_msg_callback(ssl, cb)
2897 SSL_set_msg_callback_arg(ssl, arg)
2899 to request calling a callback function
2901 void cb(int write_p, int version, int content_type,
2902 const void *buf, size_t len, SSL *ssl, void *arg)
2904 whenever a protocol message has been completely received
2905 (write_p == 0) or sent (write_p == 1). Here 'version' is the
2906 protocol version according to which the SSL library interprets
2907 the current protocol message (SSL2_VERSION, SSL3_VERSION, or
2908 TLS1_VERSION). 'content_type' is 0 in the case of SSL 2.0, or
2909 the content type as defined in the SSL 3.0/TLS 1.0 protocol
2910 specification (change_cipher_spec(20), alert(21), handshake(22)).
2911 'buf' and 'len' point to the actual message, 'ssl' to the
2912 SSL object, and 'arg' is the application-defined value set by
2913 SSL[_CTX]_set_msg_callback_arg().
2915 'openssl s_client' and 'openssl s_server' have new '-msg' options
2916 to enable a callback that displays all protocol messages.
2919 *) Change the shared library support so shared libraries are built as
2920 soon as the corresponding static library is finished, and thereby get
2921 openssl and the test programs linked against the shared library.
2922 This still only happens when the keyword "shard" has been given to
2923 the configuration scripts.
2925 NOTE: shared library support is still an experimental thing, and
2926 backward binary compatibility is still not guaranteed.
2927 ["Maciej W. Rozycki" <macro@ds2.pg.gda.pl> and Richard Levitte]
2929 *) Add support for Subject Information Access extension.
2930 [Peter Sylvester <Peter.Sylvester@EdelWeb.fr>]
2932 *) Make BUF_MEM_grow() behaviour more consistent: Initialise to zero
2933 additional bytes when new memory had to be allocated, not just
2934 when reusing an existing buffer.
2937 *) New command line and configuration option 'utf8' for the req command.
2938 This allows field values to be specified as UTF8 strings.
2941 *) Add -multi and -mr options to "openssl speed" - giving multiple parallel
2942 runs for the former and machine-readable output for the latter.
2945 *) Add '-noemailDN' option to 'openssl ca'. This prevents inclusion
2946 of the e-mail address in the DN (i.e., it will go into a certificate
2947 extension only). The new configuration file option 'email_in_dn = no'
2948 has the same effect.
2949 [Massimiliano Pala madwolf@openca.org]
2951 *) Change all functions with names starting with des_ to be starting
2952 with DES_ instead. Add wrappers that are compatible with libdes,
2953 but are named _ossl_old_des_*. Finally, add macros that map the
2954 des_* symbols to the corresponding _ossl_old_des_* if libdes
2955 compatibility is desired. If OpenSSL 0.9.6c compatibility is
2956 desired, the des_* symbols will be mapped to DES_*, with one
2959 Since we provide two compatibility mappings, the user needs to
2960 define the macro OPENSSL_DES_LIBDES_COMPATIBILITY if libdes
2961 compatibility is desired. The default (i.e., when that macro
2962 isn't defined) is OpenSSL 0.9.6c compatibility.
2964 There are also macros that enable and disable the support of old
2965 des functions altogether. Those are OPENSSL_ENABLE_OLD_DES_SUPPORT
2966 and OPENSSL_DISABLE_OLD_DES_SUPPORT. If none or both of those
2967 are defined, the default will apply: to support the old des routines.
2969 In either case, one must include openssl/des.h to get the correct
2970 definitions. Do not try to just include openssl/des_old.h, that
2973 NOTE: This is a major break of an old API into a new one. Software
2974 authors are encouraged to switch to the DES_ style functions. Some
2975 time in the future, des_old.h and the libdes compatibility functions
2976 will be disable (i.e. OPENSSL_DISABLE_OLD_DES_SUPPORT will be the
2977 default), and then completely removed.
2980 *) Test for certificates which contain unsupported critical extensions.
2981 If such a certificate is found during a verify operation it is
2982 rejected by default: this behaviour can be overridden by either
2983 handling the new error X509_V_ERR_UNHANDLED_CRITICAL_EXTENSION or
2984 by setting the verify flag X509_V_FLAG_IGNORE_CRITICAL. A new function
2985 X509_supported_extension() has also been added which returns 1 if a
2986 particular extension is supported.
2989 *) Modify the behaviour of EVP cipher functions in similar way to digests
2990 to retain compatibility with existing code.
2993 *) Modify the behaviour of EVP_DigestInit() and EVP_DigestFinal() to retain
2994 compatibility with existing code. In particular the 'ctx' parameter does
2995 not have to be to be initialized before the call to EVP_DigestInit() and
2996 it is tidied up after a call to EVP_DigestFinal(). New function
2997 EVP_DigestFinal_ex() which does not tidy up the ctx. Similarly function
2998 EVP_MD_CTX_copy() changed to not require the destination to be
2999 initialized valid and new function EVP_MD_CTX_copy_ex() added which
3000 requires the destination to be valid.
3002 Modify all the OpenSSL digest calls to use EVP_DigestInit_ex(),
3003 EVP_DigestFinal_ex() and EVP_MD_CTX_copy_ex().
3006 *) Change ssl3_get_message (ssl/s3_both.c) and the functions using it
3007 so that complete 'Handshake' protocol structures are kept in memory
3008 instead of overwriting 'msg_type' and 'length' with 'body' data.
3011 *) Add an implementation of SSL_add_dir_cert_subjects_to_stack for Win32.
3012 [Massimo Santin via Richard Levitte]
3014 *) Major restructuring to the underlying ENGINE code. This includes
3015 reduction of linker bloat, separation of pure "ENGINE" manipulation
3016 (initialisation, etc) from functionality dealing with implementations
3017 of specific crypto iterfaces. This change also introduces integrated
3018 support for symmetric ciphers and digest implementations - so ENGINEs
3019 can now accelerate these by providing EVP_CIPHER and EVP_MD
3020 implementations of their own. This is detailed in crypto/engine/README
3021 as it couldn't be adequately described here. However, there are a few
3022 API changes worth noting - some RSA, DSA, DH, and RAND functions that
3023 were changed in the original introduction of ENGINE code have now
3024 reverted back - the hooking from this code to ENGINE is now a good
3025 deal more passive and at run-time, operations deal directly with
3026 RSA_METHODs, DSA_METHODs (etc) as they did before, rather than
3027 dereferencing through an ENGINE pointer any more. Also, the ENGINE
3028 functions dealing with BN_MOD_EXP[_CRT] handlers have been removed -
3029 they were not being used by the framework as there is no concept of a
3030 BIGNUM_METHOD and they could not be generalised to the new
3031 'ENGINE_TABLE' mechanism that underlies the new code. Similarly,
3032 ENGINE_cpy() has been removed as it cannot be consistently defined in
3036 *) Change ASN1_GENERALIZEDTIME_check() to allow fractional seconds.
3039 *) Change mkdef.pl to sort symbols that get the same entry number,
3040 and make sure the automatically generated functions ERR_load_*
3041 become part of libeay.num as well.
3044 *) New function SSL_renegotiate_pending(). This returns true once
3045 renegotiation has been requested (either SSL_renegotiate() call
3046 or HelloRequest/ClientHello receveived from the peer) and becomes
3047 false once a handshake has been completed.
3048 (For servers, SSL_renegotiate() followed by SSL_do_handshake()
3049 sends a HelloRequest, but does not ensure that a handshake takes
3050 place. SSL_renegotiate_pending() is useful for checking if the
3051 client has followed the request.)
3054 *) New SSL option SSL_OP_NO_SESSION_RESUMPTION_ON_RENEGOTIATION.
3055 By default, clients may request session resumption even during
3056 renegotiation (if session ID contexts permit); with this option,
3057 session resumption is possible only in the first handshake.
3059 SSL_OP_ALL is now 0x00000FFFL instead of 0x000FFFFFL. This makes
3060 more bits available for options that should not be part of
3061 SSL_OP_ALL (such as SSL_OP_NO_SESSION_RESUMPTION_ON_RENEGOTIATION).
3064 *) Add some demos for certificate and certificate request creation.
3067 *) Make maximum certificate chain size accepted from the peer application
3068 settable (SSL*_get/set_max_cert_list()), as proposed by
3069 "Douglas E. Engert" <deengert@anl.gov>.
3072 *) Add support for shared libraries for Unixware-7
3073 (Boyd Lynn Gerber <gerberb@zenez.com>).
3076 *) Add a "destroy" handler to ENGINEs that allows structural cleanup to
3077 be done prior to destruction. Use this to unload error strings from
3078 ENGINEs that load their own error strings. NB: This adds two new API
3079 functions to "get" and "set" this destroy handler in an ENGINE.
3082 *) Alter all existing ENGINE implementations (except "openssl" and
3083 "openbsd") to dynamically instantiate their own error strings. This
3084 makes them more flexible to be built both as statically-linked ENGINEs
3085 and self-contained shared-libraries loadable via the "dynamic" ENGINE.
3086 Also, add stub code to each that makes building them as self-contained
3087 shared-libraries easier (see README.ENGINE).
3090 *) Add a "dynamic" ENGINE that provides a mechanism for binding ENGINE
3091 implementations into applications that are completely implemented in
3092 self-contained shared-libraries. The "dynamic" ENGINE exposes control
3093 commands that can be used to configure what shared-library to load and
3094 to control aspects of the way it is handled. Also, made an update to
3095 the README.ENGINE file that brings its information up-to-date and
3096 provides some information and instructions on the "dynamic" ENGINE
3097 (ie. how to use it, how to build "dynamic"-loadable ENGINEs, etc).
3100 *) Make it possible to unload ranges of ERR strings with a new
3101 "ERR_unload_strings" function.
3104 *) Add a copy() function to EVP_MD.
3107 *) Make EVP_MD routines take a context pointer instead of just the
3108 md_data void pointer.
3111 *) Add flags to EVP_MD and EVP_MD_CTX. EVP_MD_FLAG_ONESHOT indicates
3112 that the digest can only process a single chunk of data
3113 (typically because it is provided by a piece of
3114 hardware). EVP_MD_CTX_FLAG_ONESHOT indicates that the application
3115 is only going to provide a single chunk of data, and hence the
3116 framework needn't accumulate the data for oneshot drivers.
3119 *) As with "ERR", make it possible to replace the underlying "ex_data"
3120 functions. This change also alters the storage and management of global
3121 ex_data state - it's now all inside ex_data.c and all "class" code (eg.
3122 RSA, BIO, SSL_CTX, etc) no longer stores its own STACKS and per-class
3123 index counters. The API functions that use this state have been changed
3124 to take a "class_index" rather than pointers to the class's local STACK
3125 and counter, and there is now an API function to dynamically create new
3126 classes. This centralisation allows us to (a) plug a lot of the
3127 thread-safety problems that existed, and (b) makes it possible to clean
3128 up all allocated state using "CRYPTO_cleanup_all_ex_data()". W.r.t. (b)
3129 such data would previously have always leaked in application code and
3130 workarounds were in place to make the memory debugging turn a blind eye
3131 to it. Application code that doesn't use this new function will still
3132 leak as before, but their memory debugging output will announce it now
3133 rather than letting it slide.
3135 Besides the addition of CRYPTO_cleanup_all_ex_data(), another API change
3136 induced by the "ex_data" overhaul is that X509_STORE_CTX_init() now
3137 has a return value to indicate success or failure.
3140 *) Make it possible to replace the underlying "ERR" functions such that the
3141 global state (2 LHASH tables and 2 locks) is only used by the "default"
3142 implementation. This change also adds two functions to "get" and "set"
3143 the implementation prior to it being automatically set the first time
3144 any other ERR function takes place. Ie. an application can call "get",
3145 pass the return value to a module it has just loaded, and that module
3146 can call its own "set" function using that value. This means the
3147 module's "ERR" operations will use (and modify) the error state in the
3148 application and not in its own statically linked copy of OpenSSL code.
3151 *) Give DH, DSA, and RSA types their own "**_up_ref()" function to increment
3152 reference counts. This performs normal REF_PRINT/REF_CHECK macros on
3153 the operation, and provides a more encapsulated way for external code
3154 (crypto/evp/ and ssl/) to do this. Also changed the evp and ssl code
3155 to use these functions rather than manually incrementing the counts.
3157 Also rename "DSO_up()" function to more descriptive "DSO_up_ref()".
3160 *) Add EVP test program.
3163 *) Add symmetric cipher support to ENGINE. Expect the API to change!
3166 *) New CRL functions: X509_CRL_set_version(), X509_CRL_set_issuer_name()
3167 X509_CRL_set_lastUpdate(), X509_CRL_set_nextUpdate(), X509_CRL_sort(),
3168 X509_REVOKED_set_serialNumber(), and X509_REVOKED_set_revocationDate().
3169 These allow a CRL to be built without having to access X509_CRL fields
3170 directly. Modify 'ca' application to use new functions.
3173 *) Move SSL_OP_TLS_ROLLBACK_BUG out of the SSL_OP_ALL list of recommended
3174 bug workarounds. Rollback attack detection is a security feature.
3175 The problem will only arise on OpenSSL servers when TLSv1 is not
3176 available (sslv3_server_method() or SSL_OP_NO_TLSv1).
3177 Software authors not wanting to support TLSv1 will have special reasons
3178 for their choice and can explicitly enable this option.
3179 [Bodo Moeller, Lutz Jaenicke]
3181 *) Rationalise EVP so it can be extended: don't include a union of
3182 cipher/digest structures, add init/cleanup functions for EVP_MD_CTX
3183 (similar to those existing for EVP_CIPHER_CTX).
3188 EVP_MD_CTX_init(&md); /* new function call */
3189 EVP_DigestInit(&md, EVP_sha1());
3190 EVP_DigestUpdate(&md, in, len);
3191 EVP_DigestFinal(&md, out, NULL);
3192 EVP_MD_CTX_cleanup(&md); /* new function call */
3196 *) Make DES key schedule conform to the usual scheme, as well as
3197 correcting its structure. This means that calls to DES functions
3198 now have to pass a pointer to a des_key_schedule instead of a
3199 plain des_key_schedule (which was actually always a pointer
3202 des_key_schedule ks;
3204 des_set_key_checked(..., &ks);
3205 des_ncbc_encrypt(..., &ks, ...);
3207 (Note that a later change renames 'des_...' into 'DES_...'.)
3210 *) Initial reduction of linker bloat: the use of some functions, such as
3211 PEM causes large amounts of unused functions to be linked in due to
3212 poor organisation. For example pem_all.c contains every PEM function
3213 which has a knock on effect of linking in large amounts of (unused)
3214 ASN1 code. Grouping together similar functions and splitting unrelated
3215 functions prevents this.
3218 *) Cleanup of EVP macros.
3221 *) Change historical references to {NID,SN,LN}_des_ede and ede3 to add the
3222 correct _ecb suffix.
3225 *) Add initial OCSP responder support to ocsp application. The
3226 revocation information is handled using the text based index
3227 use by the ca application. The responder can either handle
3228 requests generated internally, supplied in files (for example
3229 via a CGI script) or using an internal minimal server.
3232 *) Add configuration choices to get zlib compression for TLS.
3235 *) Changes to Kerberos SSL for RFC 2712 compliance:
3236 1. Implemented real KerberosWrapper, instead of just using
3237 KRB5 AP_REQ message. [Thanks to Simon Wilkinson <sxw@sxw.org.uk>]
3238 2. Implemented optional authenticator field of KerberosWrapper.
3240 Added openssl-style ASN.1 macros for Kerberos ticket, ap_req,
3241 and authenticator structs; see crypto/krb5/.
3243 Generalized Kerberos calls to support multiple Kerberos libraries.
3244 [Vern Staats <staatsvr@asc.hpc.mil>,
3245 Jeffrey Altman <jaltman@columbia.edu>
3246 via Richard Levitte]
3248 *) Cause 'openssl speed' to use fully hard-coded DSA keys as it
3249 already does with RSA. testdsa.h now has 'priv_key/pub_key'
3250 values for each of the key sizes rather than having just
3251 parameters (and 'speed' generating keys each time).
3254 *) Speed up EVP routines.
3257 type 8 bytes 64 bytes 256 bytes 1024 bytes 8192 bytes
3258 des-cbc 4408.85k 5560.51k 5778.46k 5862.20k 5825.16k
3259 des-cbc 4389.55k 5571.17k 5792.23k 5846.91k 5832.11k
3260 des-cbc 4394.32k 5575.92k 5807.44k 5848.37k 5841.30k
3262 des-cbc 3482.66k 5069.49k 5496.39k 5614.16k 5639.28k
3263 des-cbc 3480.74k 5068.76k 5510.34k 5609.87k 5635.52k
3264 des-cbc 3483.72k 5067.62k 5504.60k 5708.01k 5724.80k
3267 des-cbc 4660.16k 5650.19k 5807.19k 5827.13k 5783.32k
3269 des-cbc 3624.96k 5258.21k 5530.91k 5624.30k 5628.26k
3272 *) Added the OS2-EMX target.
3273 ["Brian Havard" <brianh@kheldar.apana.org.au> and Richard Levitte]
3275 *) Rewrite apps to use NCONF routines instead of the old CONF. New functions
3276 to support NCONF routines in extension code. New function CONF_set_nconf()
3277 to allow functions which take an NCONF to also handle the old LHASH
3278 structure: this means that the old CONF compatible routines can be
3279 retained (in particular wrt extensions) without having to duplicate the
3280 code. New function X509V3_add_ext_nconf_sk to add extensions to a stack.
3283 *) Enhance the general user interface with mechanisms for inner control
3284 and with possibilities to have yes/no kind of prompts.
3287 *) Change all calls to low level digest routines in the library and
3288 applications to use EVP. Add missing calls to HMAC_cleanup() and
3289 don't assume HMAC_CTX can be copied using memcpy().
3290 [Verdon Walker <VWalker@novell.com>, Steve Henson]
3292 *) Add the possibility to control engines through control names but with
3293 arbitrary arguments instead of just a string.
3294 Change the key loaders to take a UI_METHOD instead of a callback
3295 function pointer. NOTE: this breaks binary compatibility with earlier
3296 versions of OpenSSL [engine].
3297 Adapt the nCipher code for these new conditions and add a card insertion
3301 *) Enhance the general user interface with mechanisms to better support
3302 dialog box interfaces, application-defined prompts, the possibility
3303 to use defaults (for example default passwords from somewhere else)
3304 and interrupts/cancellations.
3307 *) Tidy up PKCS#12 attribute handling. Add support for the CSP name
3308 attribute in PKCS#12 files, add new -CSP option to pkcs12 utility.
3311 *) Fix a memory leak in 'sk_dup()' in the case reallocation fails. (Also
3312 tidy up some unnecessarily weird code in 'sk_new()').
3313 [Geoff, reported by Diego Tartara <dtartara@novamens.com>]
3315 *) Change the key loading routines for ENGINEs to use the same kind
3316 callback (pem_password_cb) as all other routines that need this
3320 *) Increase ENTROPY_NEEDED to 32 bytes, as Rijndael can operate with
3321 256 bit (=32 byte) keys. Of course seeding with more entropy bytes
3322 than this minimum value is recommended.
3325 *) New random seeder for OpenVMS, using the system process statistics
3326 that are easily reachable.
3329 *) Windows apparently can't transparently handle global
3330 variables defined in DLLs. Initialisations such as:
3332 const ASN1_ITEM *it = &ASN1_INTEGER_it;
3334 wont compile. This is used by the any applications that need to
3335 declare their own ASN1 modules. This was fixed by adding the option
3336 EXPORT_VAR_AS_FN to all Win32 platforms, although this isn't strictly
3337 needed for static libraries under Win32.
3340 *) New functions X509_PURPOSE_set() and X509_TRUST_set() to handle
3341 setting of purpose and trust fields. New X509_STORE trust and
3342 purpose functions and tidy up setting in other SSL functions.
3345 *) Add copies of X509_STORE_CTX fields and callbacks to X509_STORE
3346 structure. These are inherited by X509_STORE_CTX when it is
3347 initialised. This allows various defaults to be set in the
3348 X509_STORE structure (such as flags for CRL checking and custom
3349 purpose or trust settings) for functions which only use X509_STORE_CTX
3350 internally such as S/MIME.
3352 Modify X509_STORE_CTX_purpose_inherit() so it only sets purposes and
3353 trust settings if they are not set in X509_STORE. This allows X509_STORE
3354 purposes and trust (in S/MIME for example) to override any set by default.
3356 Add command line options for CRL checking to smime, s_client and s_server
3360 *) Initial CRL based revocation checking. If the CRL checking flag(s)
3361 are set then the CRL is looked up in the X509_STORE structure and
3362 its validity and signature checked, then if the certificate is found
3363 in the CRL the verify fails with a revoked error.
3365 Various new CRL related callbacks added to X509_STORE_CTX structure.
3367 Command line options added to 'verify' application to support this.
3369 This needs some additional work, such as being able to handle multiple
3370 CRLs with different times, extension based lookup (rather than just
3371 by subject name) and ultimately more complete V2 CRL extension
3375 *) Add a general user interface API (crypto/ui/). This is designed
3376 to replace things like des_read_password and friends (backward
3377 compatibility functions using this new API are provided).
3378 The purpose is to remove prompting functions from the DES code
3379 section as well as provide for prompting through dialog boxes in
3380 a window system and the like.
3383 *) Add "ex_data" support to ENGINE so implementations can add state at a
3384 per-structure level rather than having to store it globally.
3387 *) Make it possible for ENGINE structures to be copied when retrieved by
3388 ENGINE_by_id() if the ENGINE specifies a new flag: ENGINE_FLAGS_BY_ID_COPY.
3389 This causes the "original" ENGINE structure to act like a template,
3390 analogous to the RSA vs. RSA_METHOD type of separation. Because of this
3391 operational state can be localised to each ENGINE structure, despite the
3392 fact they all share the same "methods". New ENGINE structures returned in
3393 this case have no functional references and the return value is the single
3394 structural reference. This matches the single structural reference returned
3395 by ENGINE_by_id() normally, when it is incremented on the pre-existing
3399 *) Fix ASN1 decoder when decoding type ANY and V_ASN1_OTHER: since this
3400 needs to match any other type at all we need to manually clear the
3404 *) Changes to the "openssl engine" utility to include;
3405 - verbosity levels ('-v', '-vv', and '-vvv') that provide information
3406 about an ENGINE's available control commands.
3407 - executing control commands from command line arguments using the
3408 '-pre' and '-post' switches. '-post' is only used if '-t' is
3409 specified and the ENGINE is successfully initialised. The syntax for
3410 the individual commands are colon-separated, for example;
3411 openssl engine chil -pre FORK_CHECK:0 -pre SO_PATH:/lib/test.so
3414 *) New dynamic control command support for ENGINEs. ENGINEs can now
3415 declare their own commands (numbers), names (strings), descriptions,
3416 and input types for run-time discovery by calling applications. A
3417 subset of these commands are implicitly classed as "executable"
3418 depending on their input type, and only these can be invoked through
3419 the new string-based API function ENGINE_ctrl_cmd_string(). (Eg. this
3420 can be based on user input, config files, etc). The distinction is
3421 that "executable" commands cannot return anything other than a boolean
3422 result and can only support numeric or string input, whereas some
3423 discoverable commands may only be for direct use through
3424 ENGINE_ctrl(), eg. supporting the exchange of binary data, function
3425 pointers, or other custom uses. The "executable" commands are to
3426 support parameterisations of ENGINE behaviour that can be
3427 unambiguously defined by ENGINEs and used consistently across any
3428 OpenSSL-based application. Commands have been added to all the
3429 existing hardware-supporting ENGINEs, noticeably "SO_PATH" to allow
3430 control over shared-library paths without source code alterations.
3433 *) Changed all ENGINE implementations to dynamically allocate their
3434 ENGINEs rather than declaring them statically. Apart from this being
3435 necessary with the removal of the ENGINE_FLAGS_MALLOCED distinction,
3436 this also allows the implementations to compile without using the
3437 internal engine_int.h header.
3440 *) Minor adjustment to "rand" code. RAND_get_rand_method() now returns a
3441 'const' value. Any code that should be able to modify a RAND_METHOD
3442 should already have non-const pointers to it (ie. they should only
3443 modify their own ones).
3446 *) Made a variety of little tweaks to the ENGINE code.
3447 - "atalla" and "ubsec" string definitions were moved from header files
3448 to C code. "nuron" string definitions were placed in variables
3449 rather than hard-coded - allowing parameterisation of these values
3450 later on via ctrl() commands.
3451 - Removed unused "#if 0"'d code.
3452 - Fixed engine list iteration code so it uses ENGINE_free() to release
3453 structural references.
3454 - Constified the RAND_METHOD element of ENGINE structures.
3455 - Constified various get/set functions as appropriate and added
3456 missing functions (including a catch-all ENGINE_cpy that duplicates
3457 all ENGINE values onto a new ENGINE except reference counts/state).
3458 - Removed NULL parameter checks in get/set functions. Setting a method
3459 or function to NULL is a way of cancelling out a previously set
3460 value. Passing a NULL ENGINE parameter is just plain stupid anyway
3461 and doesn't justify the extra error symbols and code.
3462 - Deprecate the ENGINE_FLAGS_MALLOCED define and move the area for
3463 flags from engine_int.h to engine.h.
3464 - Changed prototypes for ENGINE handler functions (init(), finish(),
3465 ctrl(), key-load functions, etc) to take an (ENGINE*) parameter.
3468 *) Implement binary inversion algorithm for BN_mod_inverse in addition
3469 to the algorithm using long division. The binary algorithm can be
3470 used only if the modulus is odd. On 32-bit systems, it is faster
3471 only for relatively small moduli (roughly 20-30% for 128-bit moduli,
3472 roughly 5-15% for 256-bit moduli), so we use it only for moduli
3473 up to 450 bits. In 64-bit environments, the binary algorithm
3474 appears to be advantageous for much longer moduli; here we use it
3475 for moduli up to 2048 bits.
3478 *) Rewrite CHOICE field setting in ASN1_item_ex_d2i(). The old code
3479 could not support the combine flag in choice fields.
3482 *) Add a 'copy_extensions' option to the 'ca' utility. This copies
3483 extensions from a certificate request to the certificate.
3486 *) Allow multiple 'certopt' and 'nameopt' options to be separated
3487 by commas. Add 'namopt' and 'certopt' options to the 'ca' config
3488 file: this allows the display of the certificate about to be
3489 signed to be customised, to allow certain fields to be included
3490 or excluded and extension details. The old system didn't display
3491 multicharacter strings properly, omitted fields not in the policy
3492 and couldn't display additional details such as extensions.
3495 *) Function EC_POINTs_mul for multiple scalar multiplication
3496 of an arbitrary number of elliptic curve points
3497 \sum scalars[i]*points[i],
3498 optionally including the generator defined for the EC_GROUP:
3499 scalar*generator + \sum scalars[i]*points[i].
3501 EC_POINT_mul is a simple wrapper function for the typical case
3502 that the point list has just one item (besides the optional
3506 *) First EC_METHODs for curves over GF(p):
3508 EC_GFp_simple_method() uses the basic BN_mod_mul and BN_mod_sqr
3509 operations and provides various method functions that can also
3510 operate with faster implementations of modular arithmetic.
3512 EC_GFp_mont_method() reuses most functions that are part of
3513 EC_GFp_simple_method, but uses Montgomery arithmetic.
3515 [Bodo Moeller; point addition and point doubling
3516 implementation directly derived from source code provided by
3517 Lenka Fibikova <fibikova@exp-math.uni-essen.de>]
3519 *) Framework for elliptic curves (crypto/ec/ec.h, crypto/ec/ec_lcl.h,
3520 crypto/ec/ec_lib.c):
3522 Curves are EC_GROUP objects (with an optional group generator)
3523 based on EC_METHODs that are built into the library.
3525 Points are EC_POINT objects based on EC_GROUP objects.
3527 Most of the framework would be able to handle curves over arbitrary
3528 finite fields, but as there are no obvious types for fields other
3529 than GF(p), some functions are limited to that for now.
3532 *) Add the -HTTP option to s_server. It is similar to -WWW, but requires
3533 that the file contains a complete HTTP response.
3536 *) Add the ec directory to mkdef.pl and mkfiles.pl. In mkdef.pl
3537 change the def and num file printf format specifier from "%-40sXXX"
3538 to "%-39s XXX". The latter will always guarantee a space after the
3539 field while the former will cause them to run together if the field
3540 is 40 of more characters long.
3543 *) Constify the cipher and digest 'method' functions and structures
3544 and modify related functions to take constant EVP_MD and EVP_CIPHER
3548 *) Hide BN_CTX structure details in bn_lcl.h instead of publishing them
3549 in <openssl/bn.h>. Also further increase BN_CTX_NUM to 32.
3552 *) Modify EVP_Digest*() routines so they now return values. Although the
3553 internal software routines can never fail additional hardware versions
3557 *) Clean up crypto/err/err.h and change some error codes to avoid conflicts:
3559 Previously ERR_R_FATAL was too small and coincided with ERR_LIB_PKCS7
3560 (= ERR_R_PKCS7_LIB); it is now 64 instead of 32.
3563 ERR_R_NESTED_ASN1_ERROR
3565 ERR_R_MISSING_ASN1_EOS
3566 were 4 .. 9, conflicting with
3567 ERR_LIB_RSA (= ERR_R_RSA_LIB)
3569 ERR_LIB_PEM (= ERR_R_PEM_LIB).
3570 They are now 58 .. 63 (i.e., just below ERR_R_FATAL).
3572 Add new error code 'ERR_R_INTERNAL_ERROR'.
3575 *) Don't overuse locks in crypto/err/err.c: For data retrieval, CRYPTO_r_lock
3579 *) New option '-subj arg' for 'openssl req' and 'openssl ca'. This
3580 sets the subject name for a new request or supersedes the
3581 subject name in a given request. Formats that can be parsed are
3582 'CN=Some Name, OU=myOU, C=IT'
3584 'CN=Some Name/OU=myOU/C=IT'.
3586 Add options '-batch' and '-verbose' to 'openssl req'.
3587 [Massimiliano Pala <madwolf@hackmasters.net>]
3589 *) Introduce the possibility to access global variables through
3590 functions on platform were that's the best way to handle exporting
3591 global variables in shared libraries. To enable this functionality,
3592 one must configure with "EXPORT_VAR_AS_FN" or defined the C macro
3593 "OPENSSL_EXPORT_VAR_AS_FUNCTION" in crypto/opensslconf.h (the latter
3594 is normally done by Configure or something similar).
3596 To implement a global variable, use the macro OPENSSL_IMPLEMENT_GLOBAL
3597 in the source file (foo.c) like this:
3599 OPENSSL_IMPLEMENT_GLOBAL(int,foo)=1;
3600 OPENSSL_IMPLEMENT_GLOBAL(double,bar);
3602 To declare a global variable, use the macros OPENSSL_DECLARE_GLOBAL
3603 and OPENSSL_GLOBAL_REF in the header file (foo.h) like this:
3605 OPENSSL_DECLARE_GLOBAL(int,foo);
3606 #define foo OPENSSL_GLOBAL_REF(foo)
3607 OPENSSL_DECLARE_GLOBAL(double,bar);
3608 #define bar OPENSSL_GLOBAL_REF(bar)
3610 The #defines are very important, and therefore so is including the
3611 header file everywhere where the defined globals are used.
3613 The macro OPENSSL_EXPORT_VAR_AS_FUNCTION also affects the definition
3614 of ASN.1 items, but that structure is a bit different.
3616 The largest change is in util/mkdef.pl which has been enhanced with
3617 better and easier to understand logic to choose which symbols should
3618 go into the Windows .def files as well as a number of fixes and code
3619 cleanup (among others, algorithm keywords are now sorted
3620 lexicographically to avoid constant rewrites).
3623 *) In BN_div() keep a copy of the sign of 'num' before writing the
3624 result to 'rm' because if rm==num the value will be overwritten
3625 and produce the wrong result if 'num' is negative: this caused
3626 problems with BN_mod() and BN_nnmod().
3629 *) Function OCSP_request_verify(). This checks the signature on an
3630 OCSP request and verifies the signer certificate. The signer
3631 certificate is just checked for a generic purpose and OCSP request
3635 *) Add OCSP_check_validity() function to check the validity of OCSP
3636 responses. OCSP responses are prepared in real time and may only
3637 be a few seconds old. Simply checking that the current time lies
3638 between thisUpdate and nextUpdate max reject otherwise valid responses
3639 caused by either OCSP responder or client clock inaccuracy. Instead
3640 we allow thisUpdate and nextUpdate to fall within a certain period of
3641 the current time. The age of the response can also optionally be
3642 checked. Two new options -validity_period and -status_age added to
3646 *) If signature or public key algorithm is unrecognized print out its
3647 OID rather that just UNKNOWN.
3650 *) Change OCSP_cert_to_id() to tolerate a NULL subject certificate and
3651 OCSP_cert_id_new() a NULL serialNumber. This allows a partial certificate
3652 ID to be generated from the issuer certificate alone which can then be
3653 passed to OCSP_id_issuer_cmp().
3656 *) New compilation option ASN1_ITEM_FUNCTIONS. This causes the new
3657 ASN1 modules to export functions returning ASN1_ITEM pointers
3658 instead of the ASN1_ITEM structures themselves. This adds several
3659 new macros which allow the underlying ASN1 function/structure to
3660 be accessed transparently. As a result code should not use ASN1_ITEM
3661 references directly (such as &X509_it) but instead use the relevant
3662 macros (such as ASN1_ITEM_rptr(X509)). This option is to allow
3663 use of the new ASN1 code on platforms where exporting structures
3664 is problematical (for example in shared libraries) but exporting
3665 functions returning pointers to structures is not.
3668 *) Add support for overriding the generation of SSL/TLS session IDs.
3669 These callbacks can be registered either in an SSL_CTX or per SSL.
3670 The purpose of this is to allow applications to control, if they wish,
3671 the arbitrary values chosen for use as session IDs, particularly as it
3672 can be useful for session caching in multiple-server environments. A
3673 command-line switch for testing this (and any client code that wishes
3674 to use such a feature) has been added to "s_server".
3675 [Geoff Thorpe, Lutz Jaenicke]
3677 *) Modify mkdef.pl to recognise and parse preprocessor conditionals
3678 of the form '#if defined(...) || defined(...) || ...' and
3679 '#if !defined(...) && !defined(...) && ...'. This also avoids
3680 the growing number of special cases it was previously handling.
3683 *) Make all configuration macros available for application by making
3684 sure they are available in opensslconf.h, by giving them names starting
3685 with "OPENSSL_" to avoid conflicts with other packages and by making
3686 sure e_os2.h will cover all platform-specific cases together with
3688 Additionally, it is now possible to define configuration/platform-
3689 specific names (called "system identities"). In the C code, these
3690 are prefixed with "OPENSSL_SYSNAME_". e_os2.h will create another
3691 macro with the name beginning with "OPENSSL_SYS_", which is determined
3692 from "OPENSSL_SYSNAME_*" or compiler-specific macros depending on
3696 *) New option -set_serial to 'req' and 'x509' this allows the serial
3697 number to use to be specified on the command line. Previously self
3698 signed certificates were hard coded with serial number 0 and the
3699 CA options of 'x509' had to use a serial number in a file which was
3703 *) New options to 'ca' utility to support V2 CRL entry extensions.
3704 Currently CRL reason, invalidity date and hold instruction are
3705 supported. Add new CRL extensions to V3 code and some new objects.
3708 *) New function EVP_CIPHER_CTX_set_padding() this is used to
3709 disable standard block padding (aka PKCS#5 padding) in the EVP
3710 API, which was previously mandatory. This means that the data is
3711 not padded in any way and so the total length much be a multiple
3712 of the block size, otherwise an error occurs.
3715 *) Initial (incomplete) OCSP SSL support.
3718 *) New function OCSP_parse_url(). This splits up a URL into its host,
3719 port and path components: primarily to parse OCSP URLs. New -url
3720 option to ocsp utility.
3723 *) New nonce behavior. The return value of OCSP_check_nonce() now
3724 reflects the various checks performed. Applications can decide
3725 whether to tolerate certain situations such as an absent nonce
3726 in a response when one was present in a request: the ocsp application
3727 just prints out a warning. New function OCSP_add1_basic_nonce()
3728 this is to allow responders to include a nonce in a response even if
3729 the request is nonce-less.
3732 *) Disable stdin buffering in load_cert (apps/apps.c) so that no certs are
3733 skipped when using openssl x509 multiple times on a single input file,
3734 e.g. "(openssl x509 -out cert1; openssl x509 -out cert2) <certs".
3737 *) Make ASN1_UTCTIME_set_string() and ASN1_GENERALIZEDTIME_set_string()
3738 set string type: to handle setting ASN1_TIME structures. Fix ca
3739 utility to correctly initialize revocation date of CRLs.
3742 *) New option SSL_OP_CIPHER_SERVER_PREFERENCE allows the server to override
3743 the clients preferred ciphersuites and rather use its own preferences.
3744 Should help to work around M$ SGC (Server Gated Cryptography) bug in
3745 Internet Explorer by ensuring unchanged hash method during stepup.
3746 (Also replaces the broken/deactivated SSL_OP_NON_EXPORT_FIRST option.)
3749 *) Make mkdef.pl recognise all DECLARE_ASN1 macros, change rijndael
3750 to aes and add a new 'exist' option to print out symbols that don't
3754 *) Additional options to ocsp utility to allow flags to be set and
3755 additional certificates supplied.
3758 *) Add the option -VAfile to 'openssl ocsp', so the user can give the
3759 OCSP client a number of certificate to only verify the response
3763 *) Update Rijndael code to version 3.0 and change EVP AES ciphers to
3764 handle the new API. Currently only ECB, CBC modes supported. Add new
3767 Add TLS AES ciphersuites as described in RFC3268, "Advanced
3768 Encryption Standard (AES) Ciphersuites for Transport Layer
3769 Security (TLS)". (In beta versions of OpenSSL 0.9.7, these were
3770 not enabled by default and were not part of the "ALL" ciphersuite
3771 alias because they were not yet official; they could be
3772 explicitly requested by specifying the "AESdraft" ciphersuite
3773 group alias. In the final release of OpenSSL 0.9.7, the group
3774 alias is called "AES" and is part of "ALL".)
3775 [Ben Laurie, Steve Henson, Bodo Moeller]
3777 *) New function OCSP_copy_nonce() to copy nonce value (if present) from
3778 request to response.
3781 *) Functions for OCSP responders. OCSP_request_onereq_count(),
3782 OCSP_request_onereq_get0(), OCSP_onereq_get0_id() and OCSP_id_get0_info()
3783 extract information from a certificate request. OCSP_response_create()
3784 creates a response and optionally adds a basic response structure.
3785 OCSP_basic_add1_status() adds a complete single response to a basic
3786 response and returns the OCSP_SINGLERESP structure just added (to allow
3787 extensions to be included for example). OCSP_basic_add1_cert() adds a
3788 certificate to a basic response and OCSP_basic_sign() signs a basic
3789 response with various flags. New helper functions ASN1_TIME_check()
3790 (checks validity of ASN1_TIME structure) and ASN1_TIME_to_generalizedtime()
3791 (converts ASN1_TIME to GeneralizedTime).
3794 *) Various new functions. EVP_Digest() combines EVP_Digest{Init,Update,Final}()
3795 in a single operation. X509_get0_pubkey_bitstr() extracts the public_key
3796 structure from a certificate. X509_pubkey_digest() digests the public_key
3797 contents: this is used in various key identifiers.
3800 *) Make sk_sort() tolerate a NULL argument.
3801 [Steve Henson reported by Massimiliano Pala <madwolf@comune.modena.it>]
3803 *) New OCSP verify flag OCSP_TRUSTOTHER. When set the "other" certificates
3804 passed by the function are trusted implicitly. If any of them signed the
3805 response then it is assumed to be valid and is not verified.
3808 *) In PKCS7_set_type() initialise content_type in PKCS7_ENC_CONTENT
3809 to data. This was previously part of the PKCS7 ASN1 code. This
3810 was causing problems with OpenSSL created PKCS#12 and PKCS#7 structures.
3811 [Steve Henson, reported by Kenneth R. Robinette
3812 <support@securenetterm.com>]
3814 *) Add CRYPTO_push_info() and CRYPTO_pop_info() calls to new ASN1
3815 routines: without these tracing memory leaks is very painful.
3816 Fix leaks in PKCS12 and PKCS7 routines.
3819 *) Make X509_time_adj() cope with the new behaviour of ASN1_TIME_new().
3820 Previously it initialised the 'type' argument to V_ASN1_UTCTIME which
3821 effectively meant GeneralizedTime would never be used. Now it
3822 is initialised to -1 but X509_time_adj() now has to check the value
3823 and use ASN1_TIME_set() if the value is not V_ASN1_UTCTIME or
3824 V_ASN1_GENERALIZEDTIME, without this it always uses GeneralizedTime.
3825 [Steve Henson, reported by Kenneth R. Robinette
3826 <support@securenetterm.com>]
3828 *) Fixes to BN_to_ASN1_INTEGER when bn is zero. This would previously
3829 result in a zero length in the ASN1_INTEGER structure which was
3830 not consistent with the structure when d2i_ASN1_INTEGER() was used
3831 and would cause ASN1_INTEGER_cmp() to fail. Enhance s2i_ASN1_INTEGER()
3832 to cope with hex and negative integers. Fix bug in i2a_ASN1_INTEGER()
3833 where it did not print out a minus for negative ASN1_INTEGER.
3836 *) Add summary printout to ocsp utility. The various functions which
3837 convert status values to strings have been renamed to:
3838 OCSP_response_status_str(), OCSP_cert_status_str() and
3839 OCSP_crl_reason_str() and are no longer static. New options
3840 to verify nonce values and to disable verification. OCSP response
3841 printout format cleaned up.
3844 *) Add additional OCSP certificate checks. These are those specified
3845 in RFC2560. This consists of two separate checks: the CA of the
3846 certificate being checked must either be the OCSP signer certificate
3847 or the issuer of the OCSP signer certificate. In the latter case the
3848 OCSP signer certificate must contain the OCSP signing extended key
3849 usage. This check is performed by attempting to match the OCSP
3850 signer or the OCSP signer CA to the issuerNameHash and issuerKeyHash
3851 in the OCSP_CERTID structures of the response.
3854 *) Initial OCSP certificate verification added to OCSP_basic_verify()
3855 and related routines. This uses the standard OpenSSL certificate
3856 verify routines to perform initial checks (just CA validity) and
3857 to obtain the certificate chain. Then additional checks will be
3858 performed on the chain. Currently the root CA is checked to see
3859 if it is explicitly trusted for OCSP signing. This is used to set
3860 a root CA as a global signing root: that is any certificate that
3861 chains to that CA is an acceptable OCSP signing certificate.
3864 *) New '-extfile ...' option to 'openssl ca' for reading X.509v3
3865 extensions from a separate configuration file.
3866 As when reading extensions from the main configuration file,
3867 the '-extensions ...' option may be used for specifying the
3869 [Massimiliano Pala <madwolf@comune.modena.it>]
3871 *) New OCSP utility. Allows OCSP requests to be generated or
3872 read. The request can be sent to a responder and the output
3873 parsed, outputed or printed in text form. Not complete yet:
3874 still needs to check the OCSP response validity.
3877 *) New subcommands for 'openssl ca':
3878 'openssl ca -status <serial>' prints the status of the cert with
3879 the given serial number (according to the index file).
3880 'openssl ca -updatedb' updates the expiry status of certificates
3882 [Massimiliano Pala <madwolf@comune.modena.it>]
3884 *) New '-newreq-nodes' command option to CA.pl. This is like
3885 '-newreq', but calls 'openssl req' with the '-nodes' option
3886 so that the resulting key is not encrypted.
3887 [Damien Miller <djm@mindrot.org>]
3889 *) New configuration for the GNU Hurd.
3890 [Jonathan Bartlett <johnnyb@wolfram.com> via Richard Levitte]
3892 *) Initial code to implement OCSP basic response verify. This
3893 is currently incomplete. Currently just finds the signer's
3894 certificate and verifies the signature on the response.
3897 *) New SSLeay_version code SSLEAY_DIR to determine the compiled-in
3898 value of OPENSSLDIR. This is available via the new '-d' option
3899 to 'openssl version', and is also included in 'openssl version -a'.
3902 *) Allowing defining memory allocation callbacks that will be given
3903 file name and line number information in additional arguments
3904 (a const char* and an int). The basic functionality remains, as
3905 well as the original possibility to just replace malloc(),
3906 realloc() and free() by functions that do not know about these
3907 additional arguments. To register and find out the current
3908 settings for extended allocation functions, the following
3909 functions are provided:
3911 CRYPTO_set_mem_ex_functions
3912 CRYPTO_set_locked_mem_ex_functions
3913 CRYPTO_get_mem_ex_functions
3914 CRYPTO_get_locked_mem_ex_functions
3916 These work the same way as CRYPTO_set_mem_functions and friends.
3917 CRYPTO_get_[locked_]mem_functions now writes 0 where such an
3918 extended allocation function is enabled.
3919 Similarly, CRYPTO_get_[locked_]mem_ex_functions writes 0 where
3920 a conventional allocation function is enabled.
3921 [Richard Levitte, Bodo Moeller]
3923 *) Finish off removing the remaining LHASH function pointer casts.
3924 There should no longer be any prototype-casting required when using
3925 the LHASH abstraction, and any casts that remain are "bugs". See
3926 the callback types and macros at the head of lhash.h for details
3927 (and "OBJ_cleanup" in crypto/objects/obj_dat.c as an example).
3930 *) Add automatic query of EGD sockets in RAND_poll() for the unix variant.
3931 If /dev/[u]random devices are not available or do not return enough
3932 entropy, EGD style sockets (served by EGD or PRNGD) will automatically
3934 The locations /var/run/egd-pool, /dev/egd-pool, /etc/egd-pool, and
3935 /etc/entropy will be queried once each in this sequence, quering stops
3936 when enough entropy was collected without querying more sockets.
3939 *) Change the Unix RAND_poll() variant to be able to poll several
3940 random devices, as specified by DEVRANDOM, until a sufficient amount
3941 of data has been collected. We spend at most 10 ms on each file
3942 (select timeout) and read in non-blocking mode. DEVRANDOM now
3943 defaults to the list "/dev/urandom", "/dev/random", "/dev/srandom"
3944 (previously it was just the string "/dev/urandom"), so on typical
3945 platforms the 10 ms delay will never occur.
3946 Also separate out the Unix variant to its own file, rand_unix.c.
3947 For VMS, there's a currently-empty rand_vms.c.
3950 *) Move OCSP client related routines to ocsp_cl.c. These
3951 provide utility functions which an application needing
3952 to issue a request to an OCSP responder and analyse the
3953 response will typically need: as opposed to those which an
3954 OCSP responder itself would need which will be added later.
3956 OCSP_request_sign() signs an OCSP request with an API similar
3957 to PKCS7_sign(). OCSP_response_status() returns status of OCSP
3958 response. OCSP_response_get1_basic() extracts basic response
3959 from response. OCSP_resp_find_status(): finds and extracts status
3960 information from an OCSP_CERTID structure (which will be created
3961 when the request structure is built). These are built from lower
3962 level functions which work on OCSP_SINGLERESP structures but
3963 wont normally be used unless the application wishes to examine
3964 extensions in the OCSP response for example.
3966 Replace nonce routines with a pair of functions.
3967 OCSP_request_add1_nonce() adds a nonce value and optionally
3968 generates a random value. OCSP_check_nonce() checks the
3969 validity of the nonce in an OCSP response.
3972 *) Change function OCSP_request_add() to OCSP_request_add0_id().
3973 This doesn't copy the supplied OCSP_CERTID and avoids the
3974 need to free up the newly created id. Change return type
3975 to OCSP_ONEREQ to return the internal OCSP_ONEREQ structure.
3976 This can then be used to add extensions to the request.
3977 Deleted OCSP_request_new(), since most of its functionality
3978 is now in OCSP_REQUEST_new() (and the case insensitive name
3979 clash) apart from the ability to set the request name which
3980 will be added elsewhere.
3983 *) Update OCSP API. Remove obsolete extensions argument from
3984 various functions. Extensions are now handled using the new
3985 OCSP extension code. New simple OCSP HTTP function which
3986 can be used to send requests and parse the response.
3989 *) Fix the PKCS#7 (S/MIME) code to work with new ASN1. Two new
3990 ASN1_ITEM structures help with sign and verify. PKCS7_ATTR_SIGN
3991 uses the special reorder version of SET OF to sort the attributes
3992 and reorder them to match the encoded order. This resolves a long
3993 standing problem: a verify on a PKCS7 structure just after signing
3994 it used to fail because the attribute order did not match the
3995 encoded order. PKCS7_ATTR_VERIFY does not reorder the attributes:
3996 it uses the received order. This is necessary to tolerate some broken
3997 software that does not order SET OF. This is handled by encoding
3998 as a SEQUENCE OF but using implicit tagging (with UNIVERSAL class)
3999 to produce the required SET OF.
4002 *) Have mk1mf.pl generate the macros OPENSSL_BUILD_SHLIBCRYPTO and
4003 OPENSSL_BUILD_SHLIBSSL and use them appropriately in the header
4004 files to get correct declarations of the ASN.1 item variables.
4007 *) Rewrite of PKCS#12 code to use new ASN1 functionality. Replace many
4008 PKCS#12 macros with real functions. Fix two unrelated ASN1 bugs:
4009 asn1_check_tlen() would sometimes attempt to use 'ctx' when it was
4010 NULL and ASN1_TYPE was not dereferenced properly in asn1_ex_c2i().
4011 New ASN1 macro: DECLARE_ASN1_ITEM() which just declares the relevant
4012 ASN1_ITEM and no wrapper functions.
4015 *) New functions or ASN1_item_d2i_fp() and ASN1_item_d2i_bio(). These
4016 replace the old function pointer based I/O routines. Change most of
4017 the *_d2i_bio() and *_d2i_fp() functions to use these.
4020 *) Enhance mkdef.pl to be more accepting about spacing in C preprocessor
4021 lines, recognice more "algorithms" that can be deselected, and make
4022 it complain about algorithm deselection that isn't recognised.
4025 *) New ASN1 functions to handle dup, sign, verify, digest, pack and
4026 unpack operations in terms of ASN1_ITEM. Modify existing wrappers
4027 to use new functions. Add NO_ASN1_OLD which can be set to remove
4028 some old style ASN1 functions: this can be used to determine if old
4029 code will still work when these eventually go away.
4032 *) New extension functions for OCSP structures, these follow the
4033 same conventions as certificates and CRLs.
4036 *) New function X509V3_add1_i2d(). This automatically encodes and
4037 adds an extension. Its behaviour can be customised with various
4038 flags to append, replace or delete. Various wrappers added for
4039 certifcates and CRLs.
4042 *) Fix to avoid calling the underlying ASN1 print routine when
4043 an extension cannot be parsed. Correct a typo in the
4044 OCSP_SERVICELOC extension. Tidy up print OCSP format.
4047 *) Make mkdef.pl parse some of the ASN1 macros and add apropriate
4048 entries for variables.
4051 *) Add functionality to apps/openssl.c for detecting locking
4052 problems: As the program is single-threaded, all we have
4053 to do is register a locking callback using an array for
4054 storing which locks are currently held by the program.
4057 *) Use a lock around the call to CRYPTO_get_ex_new_index() in
4058 SSL_get_ex_data_X509_STORE_idx(), which is used in
4059 ssl_verify_cert_chain() and thus can be called at any time
4060 during TLS/SSL handshakes so that thread-safety is essential.
4061 Unfortunately, the ex_data design is not at all suited
4062 for multi-threaded use, so it probably should be abolished.
4065 *) Added Broadcom "ubsec" ENGINE to OpenSSL.
4066 [Broadcom, tweaked and integrated by Geoff Thorpe]
4068 *) Move common extension printing code to new function
4069 X509V3_print_extensions(). Reorganise OCSP print routines and
4070 implement some needed OCSP ASN1 functions. Add OCSP extensions.
4073 *) New function X509_signature_print() to remove duplication in some
4077 *) Add a special meaning when SET OF and SEQUENCE OF flags are both
4078 set (this was treated exactly the same as SET OF previously). This
4079 is used to reorder the STACK representing the structure to match the
4080 encoding. This will be used to get round a problem where a PKCS7
4081 structure which was signed could not be verified because the STACK
4082 order did not reflect the encoded order.
4085 *) Reimplement the OCSP ASN1 module using the new code.
4088 *) Update the X509V3 code to permit the use of an ASN1_ITEM structure
4089 for its ASN1 operations. The old style function pointers still exist
4090 for now but they will eventually go away.
4093 *) Merge in replacement ASN1 code from the ASN1 branch. This almost
4094 completely replaces the old ASN1 functionality with a table driven
4095 encoder and decoder which interprets an ASN1_ITEM structure describing
4096 the ASN1 module. Compatibility with the existing ASN1 API (i2d,d2i) is
4097 largely maintained. Almost all of the old asn1_mac.h macro based ASN1
4098 has also been converted to the new form.
4101 *) Change BN_mod_exp_recp so that negative moduli are tolerated
4102 (the sign is ignored). Similarly, ignore the sign in BN_MONT_CTX_set
4103 so that BN_mod_exp_mont and BN_mod_exp_mont_word work
4104 for negative moduli.
4107 *) Fix BN_uadd and BN_usub: Always return non-negative results instead
4108 of not touching the result's sign bit.
4111 *) BN_div bugfix: If the result is 0, the sign (res->neg) must not be
4115 *) Changed the LHASH code to use prototypes for callbacks, and created
4116 macros to declare and implement thin (optionally static) functions
4117 that provide type-safety and avoid function pointer casting for the
4118 type-specific callbacks.
4121 *) Added Kerberos Cipher Suites to be used with TLS, as written in
4123 [Veers Staats <staatsvr@asc.hpc.mil>,
4124 Jeffrey Altman <jaltman@columbia.edu>, via Richard Levitte]
4126 *) Reformat the FAQ so the different questions and answers can be divided
4127 in sections depending on the subject.
4130 *) Have the zlib compression code load ZLIB.DLL dynamically under
4134 *) New function BN_mod_sqrt for computing square roots modulo a prime
4135 (using the probabilistic Tonelli-Shanks algorithm unless
4136 p == 3 (mod 4) or p == 5 (mod 8), which are cases that can
4137 be handled deterministically).
4138 [Lenka Fibikova <fibikova@exp-math.uni-essen.de>, Bodo Moeller]
4140 *) Make BN_mod_inverse faster by explicitly handling small quotients
4141 in the Euclid loop. (Speed gain about 20% for small moduli [256 or
4142 512 bits], about 30% for larger ones [1024 or 2048 bits].)
4145 *) New function BN_kronecker.
4148 *) Fix BN_gcd so that it works on negative inputs; the result is
4149 positive unless both parameters are zero.
4150 Previously something reasonably close to an infinite loop was
4151 possible because numbers could be growing instead of shrinking
4152 in the implementation of Euclid's algorithm.
4155 *) Fix BN_is_word() and BN_is_one() macros to take into account the
4156 sign of the number in question.
4158 Fix BN_is_word(a,w) to work correctly for w == 0.
4160 The old BN_is_word(a,w) macro is now called BN_abs_is_word(a,w)
4161 because its test if the absolute value of 'a' equals 'w'.
4162 Note that BN_abs_is_word does *not* handle w == 0 reliably;
4163 it exists mostly for use in the implementations of BN_is_zero(),
4164 BN_is_one(), and BN_is_word().
4167 *) New function BN_swap.
4170 *) Use BN_nnmod instead of BN_mod in crypto/bn/bn_exp.c so that
4171 the exponentiation functions are more likely to produce reasonable
4172 results on negative inputs.
4175 *) Change BN_mod_mul so that the result is always non-negative.
4176 Previously, it could be negative if one of the factors was negative;
4177 I don't think anyone really wanted that behaviour.
4180 *) Move BN_mod_... functions into new file crypto/bn/bn_mod.c
4181 (except for exponentiation, which stays in crypto/bn/bn_exp.c,
4182 and BN_mod_mul_reciprocal, which stays in crypto/bn/bn_recp.c)
4183 and add new functions:
4192 BN_mod_lshift1_quick
4196 These functions always generate non-negative results.
4198 BN_nnmod otherwise is like BN_mod (if BN_mod computes a remainder r
4199 such that |m| < r < 0, BN_nnmod will output rem + |m| instead).
4201 BN_mod_XXX_quick(r, a, [b,] m) generates the same result as
4202 BN_mod_XXX(r, a, [b,] m, ctx), but requires that a [and b]
4203 be reduced modulo m.
4204 [Lenka Fibikova <fibikova@exp-math.uni-essen.de>, Bodo Moeller]
4207 The following entry accidentily appeared in the CHANGES file
4208 distributed with OpenSSL 0.9.7. The modifications described in
4209 it do *not* apply to OpenSSL 0.9.7.
4211 *) Remove a few calls to bn_wexpand() in BN_sqr() (the one in there
4212 was actually never needed) and in BN_mul(). The removal in BN_mul()
4213 required a small change in bn_mul_part_recursive() and the addition
4214 of the functions bn_cmp_part_words(), bn_sub_part_words() and
4215 bn_add_part_words(), which do the same thing as bn_cmp_words(),
4216 bn_sub_words() and bn_add_words() except they take arrays with
4221 *) In 'openssl passwd', verify passwords read from the terminal
4222 unless the '-salt' option is used (which usually means that
4223 verification would just waste user's time since the resulting
4224 hash is going to be compared with some given password hash)
4225 or the new '-noverify' option is used.
4227 This is an incompatible change, but it does not affect
4228 non-interactive use of 'openssl passwd' (passwords on the command
4229 line, '-stdin' option, '-in ...' option) and thus should not
4233 *) Remove all references to RSAref, since there's no more need for it.
4236 *) Make DSO load along a path given through an environment variable
4237 (SHLIB_PATH) with shl_load().
4240 *) Constify the ENGINE code as a result of BIGNUM constification.
4241 Also constify the RSA code and most things related to it. In a
4242 few places, most notable in the depth of the ASN.1 code, ugly
4243 casts back to non-const were required (to be solved at a later
4247 *) Make it so the openssl application has all engines loaded by default.
4250 *) Constify the BIGNUM routines a little more.
4253 *) Add the following functions:
4255 ENGINE_load_cswift()
4257 ENGINE_load_atalla()
4259 ENGINE_load_builtin_engines()
4261 That way, an application can itself choose if external engines that
4262 are built-in in OpenSSL shall ever be used or not. The benefit is
4263 that applications won't have to be linked with libdl or other dso
4264 libraries unless it's really needed.
4266 Changed 'openssl engine' to load all engines on demand.
4267 Changed the engine header files to avoid the duplication of some
4268 declarations (they differed!).
4271 *) 'openssl engine' can now list capabilities.
4274 *) Better error reporting in 'openssl engine'.
4277 *) Never call load_dh_param(NULL) in s_server.
4280 *) Add engine application. It can currently list engines by name and
4281 identity, and test if they are actually available.
4284 *) Improve RPM specification file by forcing symbolic linking and making
4285 sure the installed documentation is also owned by root.root.
4286 [Damien Miller <djm@mindrot.org>]
4288 *) Give the OpenSSL applications more possibilities to make use of
4289 keys (public as well as private) handled by engines.
4292 *) Add OCSP code that comes from CertCo.
4295 *) Add VMS support for the Rijndael code.
4298 *) Added untested support for Nuron crypto accelerator.
4301 *) Add support for external cryptographic devices. This code was
4302 previously distributed separately as the "engine" branch.
4303 [Geoff Thorpe, Richard Levitte]
4305 *) Rework the filename-translation in the DSO code. It is now possible to
4306 have far greater control over how a "name" is turned into a filename
4307 depending on the operating environment and any oddities about the
4308 different shared library filenames on each system.
4311 *) Support threads on FreeBSD-elf in Configure.
4314 *) Fix for SHA1 assembly problem with MASM: it produces
4315 warnings about corrupt line number information when assembling
4316 with debugging information. This is caused by the overlapping
4318 [Bernd Matthes <mainbug@celocom.de>, Steve Henson]
4321 NCONF_get_number() has no error checking at all. As a replacement,
4322 NCONF_get_number_e() is defined (_e for "error checking") and is
4323 promoted strongly. The old NCONF_get_number is kept around for
4324 binary backward compatibility.
4325 Make it possible for methods to load from something other than a BIO,
4326 by providing a function pointer that is given a name instead of a BIO.
4327 For example, this could be used to load configuration data from an
4331 *) Fix for non blocking accept BIOs. Added new I/O special reason
4332 BIO_RR_ACCEPT to cover this case. Previously use of accept BIOs
4333 with non blocking I/O was not possible because no retry code was
4334 implemented. Also added new SSL code SSL_WANT_ACCEPT to cover
4338 *) Added the beginnings of Rijndael support.
4341 *) Fix for bug in DirectoryString mask setting. Add support for
4342 X509_NAME_print_ex() in 'req' and X509_print_ex() function
4343 to allow certificate printing to more controllable, additional
4344 'certopt' option to 'x509' to allow new printing options to be
4348 *) Clean old EAY MD5 hack from e_os.h.
4351 Changes between 0.9.6l and 0.9.6m [17 Mar 2004]
4353 *) Fix null-pointer assignment in do_change_cipher_spec() revealed
4354 by using the Codenomicon TLS Test Tool (CVE-2004-0079)
4355 [Joe Orton, Steve Henson]
4357 Changes between 0.9.6k and 0.9.6l [04 Nov 2003]
4359 *) Fix additional bug revealed by the NISCC test suite:
4361 Stop bug triggering large recursion when presented with
4362 certain ASN.1 tags (CVE-2003-0851)
4365 Changes between 0.9.6j and 0.9.6k [30 Sep 2003]
4367 *) Fix various bugs revealed by running the NISCC test suite:
4369 Stop out of bounds reads in the ASN1 code when presented with
4370 invalid tags (CVE-2003-0543 and CVE-2003-0544).
4372 If verify callback ignores invalid public key errors don't try to check
4373 certificate signature with the NULL public key.
4377 *) In ssl3_accept() (ssl/s3_srvr.c) only accept a client certificate
4378 if the server requested one: as stated in TLS 1.0 and SSL 3.0
4382 *) In ssl3_get_client_hello() (ssl/s3_srvr.c), tolerate additional
4383 extra data after the compression methods not only for TLS 1.0
4384 but also for SSL 3.0 (as required by the specification).
4385 [Bodo Moeller; problem pointed out by Matthias Loepfe]
4387 *) Change X509_certificate_type() to mark the key as exported/exportable
4388 when it's 512 *bits* long, not 512 bytes.
4391 Changes between 0.9.6i and 0.9.6j [10 Apr 2003]
4393 *) Countermeasure against the Klima-Pokorny-Rosa extension of
4394 Bleichbacher's attack on PKCS #1 v1.5 padding: treat
4395 a protocol version number mismatch like a decryption error
4396 in ssl3_get_client_key_exchange (ssl/s3_srvr.c).
4399 *) Turn on RSA blinding by default in the default implementation
4400 to avoid a timing attack. Applications that don't want it can call
4401 RSA_blinding_off() or use the new flag RSA_FLAG_NO_BLINDING.
4402 They would be ill-advised to do so in most cases.
4403 [Ben Laurie, Steve Henson, Geoff Thorpe, Bodo Moeller]
4405 *) Change RSA blinding code so that it works when the PRNG is not
4406 seeded (in this case, the secret RSA exponent is abused as
4407 an unpredictable seed -- if it is not unpredictable, there
4408 is no point in blinding anyway). Make RSA blinding thread-safe
4409 by remembering the creator's thread ID in rsa->blinding and
4410 having all other threads use local one-time blinding factors
4411 (this requires more computation than sharing rsa->blinding, but
4412 avoids excessive locking; and if an RSA object is not shared
4413 between threads, blinding will still be very fast).
4416 Changes between 0.9.6h and 0.9.6i [19 Feb 2003]
4418 *) In ssl3_get_record (ssl/s3_pkt.c), minimize information leaked
4419 via timing by performing a MAC computation even if incorrrect
4420 block cipher padding has been found. This is a countermeasure
4421 against active attacks where the attacker has to distinguish
4422 between bad padding and a MAC verification error. (CVE-2003-0078)
4424 [Bodo Moeller; problem pointed out by Brice Canvel (EPFL),
4425 Alain Hiltgen (UBS), Serge Vaudenay (EPFL), and
4426 Martin Vuagnoux (EPFL, Ilion)]
4428 Changes between 0.9.6g and 0.9.6h [5 Dec 2002]
4430 *) New function OPENSSL_cleanse(), which is used to cleanse a section of
4431 memory from it's contents. This is done with a counter that will
4432 place alternating values in each byte. This can be used to solve
4433 two issues: 1) the removal of calls to memset() by highly optimizing
4434 compilers, and 2) cleansing with other values than 0, since those can
4435 be read through on certain media, for example a swap space on disk.
4438 *) Bugfix: client side session caching did not work with external caching,
4439 because the session->cipher setting was not restored when reloading
4440 from the external cache. This problem was masked, when
4441 SSL_OP_NETSCAPE_REUSE_CIPHER_CHANGE_BUG (part of SSL_OP_ALL) was set.
4442 (Found by Steve Haslam <steve@araqnid.ddts.net>.)
4445 *) Fix client_certificate (ssl/s2_clnt.c): The permissible total
4446 length of the REQUEST-CERTIFICATE message is 18 .. 34, not 17 .. 33.
4447 [Zeev Lieber <zeev-l@yahoo.com>]
4449 *) Undo an undocumented change introduced in 0.9.6e which caused
4450 repeated calls to OpenSSL_add_all_ciphers() and
4451 OpenSSL_add_all_digests() to be ignored, even after calling
4455 *) Change the default configuration reader to deal with last line not
4456 being properly terminated.
4459 *) Change X509_NAME_cmp() so it applies the special rules on handling
4460 DN values that are of type PrintableString, as well as RDNs of type
4461 emailAddress where the value has the type ia5String.
4462 [stefank@valicert.com via Richard Levitte]
4464 *) Add a SSL_SESS_CACHE_NO_INTERNAL_STORE flag to take over half
4465 the job SSL_SESS_CACHE_NO_INTERNAL_LOOKUP was inconsistently
4466 doing, define a new flag (SSL_SESS_CACHE_NO_INTERNAL) to be
4467 the bitwise-OR of the two for use by the majority of applications
4468 wanting this behaviour, and update the docs. The documented
4469 behaviour and actual behaviour were inconsistent and had been
4470 changing anyway, so this is more a bug-fix than a behavioural
4472 [Geoff Thorpe, diagnosed by Nadav Har'El]
4474 *) Don't impose a 16-byte length minimum on session IDs in ssl/s3_clnt.c
4475 (the SSL 3.0 and TLS 1.0 specifications allow any length up to 32 bytes).
4478 *) Fix initialization code race conditions in
4479 SSLv23_method(), SSLv23_client_method(), SSLv23_server_method(),
4480 SSLv2_method(), SSLv2_client_method(), SSLv2_server_method(),
4481 SSLv3_method(), SSLv3_client_method(), SSLv3_server_method(),
4482 TLSv1_method(), TLSv1_client_method(), TLSv1_server_method(),
4483 ssl2_get_cipher_by_char(),
4484 ssl3_get_cipher_by_char().
4485 [Patrick McCormick <patrick@tellme.com>, Bodo Moeller]
4487 *) Reorder cleanup sequence in SSL_CTX_free(): only remove the ex_data after
4488 the cached sessions are flushed, as the remove_cb() might use ex_data
4489 contents. Bug found by Sam Varshavchik <mrsam@courier-mta.com>
4490 (see [openssl.org #212]).
4491 [Geoff Thorpe, Lutz Jaenicke]
4493 *) Fix typo in OBJ_txt2obj which incorrectly passed the content
4494 length, instead of the encoding length to d2i_ASN1_OBJECT.
4497 Changes between 0.9.6f and 0.9.6g [9 Aug 2002]
4499 *) [In 0.9.6g-engine release:]
4500 Fix crypto/engine/vendor_defns/cswift.h for WIN32 (use '_stdcall').
4501 [Lynn Gazis <lgazis@rainbow.com>]
4503 Changes between 0.9.6e and 0.9.6f [8 Aug 2002]
4505 *) Fix ASN1 checks. Check for overflow by comparing with LONG_MAX
4506 and get fix the header length calculation.
4507 [Florian Weimer <Weimer@CERT.Uni-Stuttgart.DE>,
4508 Alon Kantor <alonk@checkpoint.com> (and others),
4511 *) Use proper error handling instead of 'assertions' in buffer
4512 overflow checks added in 0.9.6e. This prevents DoS (the
4513 assertions could call abort()).
4514 [Arne Ansper <arne@ats.cyber.ee>, Bodo Moeller]
4516 Changes between 0.9.6d and 0.9.6e [30 Jul 2002]
4518 *) Add various sanity checks to asn1_get_length() to reject
4519 the ASN1 length bytes if they exceed sizeof(long), will appear
4520 negative or the content length exceeds the length of the
4522 [Steve Henson, Adi Stav <stav@mercury.co.il>, James Yonan <jim@ntlp.com>]
4524 *) Fix cipher selection routines: ciphers without encryption had no flags
4525 for the cipher strength set and where therefore not handled correctly
4526 by the selection routines (PR #130).
4529 *) Fix EVP_dsa_sha macro.
4533 SSL_OP_DONT_INSERT_EMPTY_FRAGMENTS
4534 for disabling the SSL 3.0/TLS 1.0 CBC vulnerability countermeasure
4535 that was added in OpenSSL 0.9.6d.
4537 As the countermeasure turned out to be incompatible with some
4538 broken SSL implementations, the new option is part of SSL_OP_ALL.
4539 SSL_OP_ALL is usually employed when compatibility with weird SSL
4540 implementations is desired (e.g. '-bugs' option to 's_client' and
4541 's_server'), so the new option is automatically set in many
4545 *) Changes in security patch:
4547 Changes marked "(CHATS)" were sponsored by the Defense Advanced
4548 Research Projects Agency (DARPA) and Air Force Research Laboratory,
4549 Air Force Materiel Command, USAF, under agreement number
4552 *) Add various sanity checks to asn1_get_length() to reject
4553 the ASN1 length bytes if they exceed sizeof(long), will appear
4554 negative or the content length exceeds the length of the
4555 supplied buffer. (CVE-2002-0659)
4556 [Steve Henson, Adi Stav <stav@mercury.co.il>, James Yonan <jim@ntlp.com>]
4558 *) Assertions for various potential buffer overflows, not known to
4560 [Ben Laurie (CHATS)]
4562 *) Various temporary buffers to hold ASCII versions of integers were
4563 too small for 64 bit platforms. (CVE-2002-0655)
4564 [Matthew Byng-Maddick <mbm@aldigital.co.uk> and Ben Laurie (CHATS)>
4566 *) Remote buffer overflow in SSL3 protocol - an attacker could
4567 supply an oversized session ID to a client. (CVE-2002-0656)
4568 [Ben Laurie (CHATS)]
4570 *) Remote buffer overflow in SSL2 protocol - an attacker could
4571 supply an oversized client master key. (CVE-2002-0656)
4572 [Ben Laurie (CHATS)]
4574 Changes between 0.9.6c and 0.9.6d [9 May 2002]
4576 *) Fix crypto/asn1/a_sign.c so that 'parameters' is omitted (not
4577 encoded as NULL) with id-dsa-with-sha1.
4578 [Nils Larsch <nla@trustcenter.de>; problem pointed out by Bodo Moeller]
4580 *) Check various X509_...() return values in apps/req.c.
4581 [Nils Larsch <nla@trustcenter.de>]
4583 *) Fix BASE64 decode (EVP_DecodeUpdate) for data with CR/LF ended lines:
4584 an end-of-file condition would erronously be flagged, when the CRLF
4585 was just at the end of a processed block. The bug was discovered when
4586 processing data through a buffering memory BIO handing the data to a
4587 BASE64-decoding BIO. Bug fund and patch submitted by Pavel Tsekov
4588 <ptsekov@syntrex.com> and Nedelcho Stanev.
4591 *) Implement a countermeasure against a vulnerability recently found
4592 in CBC ciphersuites in SSL 3.0/TLS 1.0: Send an empty fragment
4593 before application data chunks to avoid the use of known IVs
4594 with data potentially chosen by the attacker.
4597 *) Fix length checks in ssl3_get_client_hello().
4600 *) TLS/SSL library bugfix: use s->s3->in_read_app_data differently
4601 to prevent ssl3_read_internal() from incorrectly assuming that
4602 ssl3_read_bytes() found application data while handshake
4603 processing was enabled when in fact s->s3->in_read_app_data was
4604 merely automatically cleared during the initial handshake.
4605 [Bodo Moeller; problem pointed out by Arne Ansper <arne@ats.cyber.ee>]
4607 *) Fix object definitions for Private and Enterprise: they were not
4608 recognized in their shortname (=lowercase) representation. Extend
4609 obj_dat.pl to issue an error when using undefined keywords instead
4610 of silently ignoring the problem (Svenning Sorensen
4611 <sss@sss.dnsalias.net>).
4614 *) Fix DH_generate_parameters() so that it works for 'non-standard'
4615 generators, i.e. generators other than 2 and 5. (Previously, the
4616 code did not properly initialise the 'add' and 'rem' values to
4617 BN_generate_prime().)
4619 In the new general case, we do not insist that 'generator' is
4620 actually a primitive root: This requirement is rather pointless;
4621 a generator of the order-q subgroup is just as good, if not
4625 *) Map new X509 verification errors to alerts. Discovered and submitted by
4626 Tom Wu <tom@arcot.com>.
4629 *) Fix ssl3_pending() (ssl/s3_lib.c) to prevent SSL_pending() from
4630 returning non-zero before the data has been completely received
4631 when using non-blocking I/O.
4632 [Bodo Moeller; problem pointed out by John Hughes]
4634 *) Some of the ciphers missed the strength entry (SSL_LOW etc).
4635 [Ben Laurie, Lutz Jaenicke]
4637 *) Fix bug in SSL_clear(): bad sessions were not removed (found by
4638 Yoram Zahavi <YoramZ@gilian.com>).
4641 *) Add information about CygWin 1.3 and on, and preserve proper
4642 configuration for the versions before that.
4643 [Corinna Vinschen <vinschen@redhat.com> and Richard Levitte]
4645 *) Make removal from session cache (SSL_CTX_remove_session()) more robust:
4646 check whether we deal with a copy of a session and do not delete from
4647 the cache in this case. Problem reported by "Izhar Shoshani Levi"
4648 <izhar@checkpoint.com>.
4651 *) Do not store session data into the internal session cache, if it
4652 is never intended to be looked up (SSL_SESS_CACHE_NO_INTERNAL_LOOKUP
4653 flag is set). Proposed by Aslam <aslam@funk.com>.
4656 *) Have ASN1_BIT_STRING_set_bit() really clear a bit when the requested
4660 *) [In 0.9.6d-engine release:]
4661 Fix a crashbug and a logic bug in hwcrhk_load_pubkey().
4662 [Toomas Kiisk <vix@cyber.ee> via Richard Levitte]
4664 *) Add the configuration target linux-s390x.
4665 [Neale Ferguson <Neale.Ferguson@SoftwareAG-USA.com> via Richard Levitte]
4667 *) The earlier bugfix for the SSL3_ST_SW_HELLO_REQ_C case of
4668 ssl3_accept (ssl/s3_srvr.c) incorrectly used a local flag
4669 variable as an indication that a ClientHello message has been
4670 received. As the flag value will be lost between multiple
4671 invocations of ssl3_accept when using non-blocking I/O, the
4672 function may not be aware that a handshake has actually taken
4673 place, thus preventing a new session from being added to the
4676 To avoid this problem, we now set s->new_session to 2 instead of
4677 using a local variable.
4678 [Lutz Jaenicke, Bodo Moeller]
4680 *) Bugfix: Return -1 from ssl3_get_server_done (ssl3/s3_clnt.c)
4681 if the SSL_R_LENGTH_MISMATCH error is detected.
4682 [Geoff Thorpe, Bodo Moeller]
4684 *) New 'shared_ldflag' column in Configure platform table.
4687 *) Fix EVP_CIPHER_mode macro.
4688 ["Dan S. Camper" <dan@bti.net>]
4690 *) Fix ssl3_read_bytes (ssl/s3_pkt.c): To ignore messages of unknown
4691 type, we must throw them away by setting rr->length to 0.
4692 [D P Chang <dpc@qualys.com>]
4694 Changes between 0.9.6b and 0.9.6c [21 dec 2001]
4696 *) Fix BN_rand_range bug pointed out by Dominikus Scherkl
4697 <Dominikus.Scherkl@biodata.com>. (The previous implementation
4698 worked incorrectly for those cases where range = 10..._2 and
4699 3*range is two bits longer than range.)
4702 *) Only add signing time to PKCS7 structures if it is not already
4706 *) Fix crypto/objects/objects.h: "ld-ce" should be "id-ce",
4707 OBJ_ld_ce should be OBJ_id_ce.
4708 Also some ip-pda OIDs in crypto/objects/objects.txt were
4709 incorrect (cf. RFC 3039).
4710 [Matt Cooper, Frederic Giudicelli, Bodo Moeller]
4712 *) Release CRYPTO_LOCK_DYNLOCK when CRYPTO_destroy_dynlockid()
4713 returns early because it has nothing to do.
4714 [Andy Schneider <andy.schneider@bjss.co.uk>]
4716 *) [In 0.9.6c-engine release:]
4717 Fix mutex callback return values in crypto/engine/hw_ncipher.c.
4718 [Andy Schneider <andy.schneider@bjss.co.uk>]
4720 *) [In 0.9.6c-engine release:]
4721 Add support for Cryptographic Appliance's keyserver technology.
4722 (Use engine 'keyclient')
4723 [Cryptographic Appliances and Geoff Thorpe]
4725 *) Add a configuration entry for OS/390 Unix. The C compiler 'c89'
4726 is called via tools/c89.sh because arguments have to be
4727 rearranged (all '-L' options must appear before the first object
4729 [Richard Shapiro <rshapiro@abinitio.com>]
4731 *) [In 0.9.6c-engine release:]
4732 Add support for Broadcom crypto accelerator cards, backported
4734 [Broadcom, Nalin Dahyabhai <nalin@redhat.com>, Mark Cox]
4736 *) [In 0.9.6c-engine release:]
4737 Add support for SureWare crypto accelerator cards from
4738 Baltimore Technologies. (Use engine 'sureware')
4739 [Baltimore Technologies and Mark Cox]
4741 *) [In 0.9.6c-engine release:]
4742 Add support for crypto accelerator cards from Accelerated
4743 Encryption Processing, www.aep.ie. (Use engine 'aep')
4744 [AEP Inc. and Mark Cox]
4746 *) Add a configuration entry for gcc on UnixWare.
4747 [Gary Benson <gbenson@redhat.com>]
4749 *) Change ssl/s2_clnt.c and ssl/s2_srvr.c so that received handshake
4750 messages are stored in a single piece (fixed-length part and
4751 variable-length part combined) and fix various bugs found on the way.
4754 *) Disable caching in BIO_gethostbyname(), directly use gethostbyname()
4755 instead. BIO_gethostbyname() does not know what timeouts are
4756 appropriate, so entries would stay in cache even when they have
4758 [Bodo Moeller; problem pointed out by Rich Salz <rsalz@zolera.com>
4760 *) Change ssl23_get_client_hello (ssl/s23_srvr.c) behaviour when
4761 faced with a pathologically small ClientHello fragment that does
4762 not contain client_version: Instead of aborting with an error,
4763 simply choose the highest available protocol version (i.e.,
4764 TLS 1.0 unless it is disabled). In practice, ClientHello
4765 messages are never sent like this, but this change gives us
4766 strictly correct behaviour at least for TLS.
4769 *) Fix SSL handshake functions and SSL_clear() such that SSL_clear()
4770 never resets s->method to s->ctx->method when called from within
4771 one of the SSL handshake functions.
4772 [Bodo Moeller; problem pointed out by Niko Baric]
4774 *) In ssl3_get_client_hello (ssl/s3_srvr.c), generate a fatal alert
4775 (sent using the client's version number) if client_version is
4776 smaller than the protocol version in use. Also change
4777 ssl23_get_client_hello (ssl/s23_srvr.c) to select TLS 1.0 if
4778 the client demanded SSL 3.0 but only TLS 1.0 is enabled; then
4779 the client will at least see that alert.
4782 *) Fix ssl3_get_message (ssl/s3_both.c) to handle message fragmentation
4786 *) Avoid infinite loop in ssl3_get_message (ssl/s3_both.c) if a
4787 client receives HelloRequest while in a handshake.
4788 [Bodo Moeller; bug noticed by Andy Schneider <andy.schneider@bjss.co.uk>]
4790 *) Bugfix in ssl3_accept (ssl/s3_srvr.c): Case SSL3_ST_SW_HELLO_REQ_C
4791 should end in 'break', not 'goto end' which circuments various
4792 cleanups done in state SSL_ST_OK. But session related stuff
4793 must be disabled for SSL_ST_OK in the case that we just sent a
4796 Also avoid some overhead by not calling ssl_init_wbio_buffer()
4797 before just sending a HelloRequest.
4798 [Bodo Moeller, Eric Rescorla <ekr@rtfm.com>]
4800 *) Fix ssl/s3_enc.c, ssl/t1_enc.c and ssl/s3_pkt.c so that we don't
4801 reveal whether illegal block cipher padding was found or a MAC
4802 verification error occured. (Neither SSLerr() codes nor alerts
4803 are directly visible to potential attackers, but the information
4804 may leak via logfiles.)
4806 Similar changes are not required for the SSL 2.0 implementation
4807 because the number of padding bytes is sent in clear for SSL 2.0,
4808 and the extra bytes are just ignored. However ssl/s2_pkt.c
4809 failed to verify that the purported number of padding bytes is in
4813 *) Add OpenUNIX-8 support including shared libraries
4814 (Boyd Lynn Gerber <gerberb@zenez.com>).
4817 *) Improve RSA_padding_check_PKCS1_OAEP() check again to avoid
4818 'wristwatch attack' using huge encoding parameters (cf.
4819 James H. Manger's CRYPTO 2001 paper). Note that the
4820 RSA_PKCS1_OAEP_PADDING case of RSA_private_decrypt() does not use
4821 encoding parameters and hence was not vulnerable.
4824 *) BN_sqr() bug fix.
4825 [Ulf Möller, reported by Jim Ellis <jim.ellis@cavium.com>]
4827 *) Rabin-Miller test analyses assume uniformly distributed witnesses,
4828 so use BN_pseudo_rand_range() instead of using BN_pseudo_rand()
4829 followed by modular reduction.
4830 [Bodo Moeller; pointed out by Adam Young <AYoung1@NCSUS.JNJ.COM>]
4832 *) Add BN_pseudo_rand_range() with obvious functionality: BN_rand_range()
4833 equivalent based on BN_pseudo_rand() instead of BN_rand().
4836 *) s3_srvr.c: allow sending of large client certificate lists (> 16 kB).
4837 This function was broken, as the check for a new client hello message
4838 to handle SGC did not allow these large messages.
4839 (Tracked down by "Douglas E. Engert" <deengert@anl.gov>.)
4842 *) Add alert descriptions for TLSv1 to SSL_alert_desc_string[_long]().
4845 *) Fix buggy behaviour of BIO_get_num_renegotiates() and BIO_ctrl()
4846 for BIO_C_GET_WRITE_BUF_SIZE ("Stephen Hinton" <shinton@netopia.com>).
4849 *) Rework the configuration and shared library support for Tru64 Unix.
4850 The configuration part makes use of modern compiler features and
4851 still retains old compiler behavior for those that run older versions
4852 of the OS. The shared library support part includes a variant that
4853 uses the RPATH feature, and is available through the special
4854 configuration target "alpha-cc-rpath", which will never be selected
4856 [Tim Mooney <mooney@dogbert.cc.ndsu.NoDak.edu> via Richard Levitte]
4858 *) In ssl3_get_key_exchange (ssl/s3_clnt.c), call ssl3_get_message()
4859 with the same message size as in ssl3_get_certificate_request().
4860 Otherwise, if no ServerKeyExchange message occurs, CertificateRequest
4861 messages might inadvertently be reject as too long.
4862 [Petr Lampa <lampa@fee.vutbr.cz>]
4864 *) Enhanced support for IA-64 Unix platforms (well, Linux and HP-UX).
4867 *) Modified SSL library such that the verify_callback that has been set
4868 specificly for an SSL object with SSL_set_verify() is actually being
4869 used. Before the change, a verify_callback set with this function was
4870 ignored and the verify_callback() set in the SSL_CTX at the time of
4871 the call was used. New function X509_STORE_CTX_set_verify_cb() introduced
4872 to allow the necessary settings.
4875 *) Initialize static variable in crypto/dsa/dsa_lib.c and crypto/dh/dh_lib.c
4876 explicitly to NULL, as at least on Solaris 8 this seems not always to be
4877 done automatically (in contradiction to the requirements of the C
4878 standard). This made problems when used from OpenSSH.
4881 *) In OpenSSL 0.9.6a and 0.9.6b, crypto/dh/dh_key.c ignored
4882 dh->length and always used
4884 BN_rand_range(priv_key, dh->p).
4886 BN_rand_range() is not necessary for Diffie-Hellman, and this
4887 specific range makes Diffie-Hellman unnecessarily inefficient if
4888 dh->length (recommended exponent length) is much smaller than the
4889 length of dh->p. We could use BN_rand_range() if the order of
4890 the subgroup was stored in the DH structure, but we only have
4895 BN_rand(priv_key, l, ...)
4897 where 'l' is dh->length if this is defined, or BN_num_bits(dh->p)-1
4903 RSA_eay_public_encrypt
4904 RSA_eay_private_decrypt
4905 RSA_eay_private_encrypt (signing)
4906 RSA_eay_public_decrypt (signature verification)
4908 (default implementations for RSA_public_encrypt,
4909 RSA_private_decrypt, RSA_private_encrypt, RSA_public_decrypt),
4910 always reject numbers >= n.
4913 *) In crypto/rand/md_rand.c, use a new short-time lock CRYPTO_LOCK_RAND2
4914 to synchronize access to 'locking_thread'. This is necessary on
4915 systems where access to 'locking_thread' (an 'unsigned long'
4916 variable) is not atomic.
4919 *) In crypto/rand/md_rand.c, set 'locking_thread' to current thread's ID
4920 *before* setting the 'crypto_lock_rand' flag. The previous code had
4921 a race condition if 0 is a valid thread ID.
4922 [Travis Vitek <vitek@roguewave.com>]
4924 *) Add support for shared libraries under Irix.
4925 [Albert Chin-A-Young <china@thewrittenword.com>]
4927 *) Add configuration option to build on Linux on both big-endian and
4929 [Ralf Baechle <ralf@uni-koblenz.de>]
4931 *) Add the possibility to create shared libraries on HP-UX.
4934 Changes between 0.9.6a and 0.9.6b [9 Jul 2001]
4936 *) Change ssleay_rand_bytes (crypto/rand/md_rand.c)
4937 to avoid a SSLeay/OpenSSL PRNG weakness pointed out by
4938 Markku-Juhani O. Saarinen <markku-juhani.saarinen@nokia.com>:
4939 PRNG state recovery was possible based on the output of
4940 one PRNG request appropriately sized to gain knowledge on
4941 'md' followed by enough consecutive 1-byte PRNG requests
4942 to traverse all of 'state'.
4944 1. When updating 'md_local' (the current thread's copy of 'md')
4945 during PRNG output generation, hash all of the previous
4946 'md_local' value, not just the half used for PRNG output.
4948 2. Make the number of bytes from 'state' included into the hash
4949 independent from the number of PRNG bytes requested.
4951 The first measure alone would be sufficient to avoid
4952 Markku-Juhani's attack. (Actually it had never occurred
4953 to me that the half of 'md_local' used for chaining was the
4954 half from which PRNG output bytes were taken -- I had always
4955 assumed that the secret half would be used.) The second
4956 measure makes sure that additional data from 'state' is never
4957 mixed into 'md_local' in small portions; this heuristically
4958 further strengthens the PRNG.
4961 *) Fix crypto/bn/asm/mips3.s.
4964 *) When only the key is given to "enc", the IV is undefined. Print out
4965 an error message in this case.
4968 *) Handle special case when X509_NAME is empty in X509 printing routines.
4971 *) In dsa_do_verify (crypto/dsa/dsa_ossl.c), verify that r and s are
4972 positive and less than q.
4975 *) Don't change *pointer in CRYPTO_add_lock() is add_lock_callback is
4976 used: it isn't thread safe and the add_lock_callback should handle
4978 [Paul Rose <Paul.Rose@bridge.com>]
4980 *) Verify that incoming data obeys the block size in
4981 ssl3_enc (ssl/s3_enc.c) and tls1_enc (ssl/t1_enc.c).
4985 [Ulf Möller, Bodo Möller]
4987 *) The countermeasure against Bleichbacher's attack on PKCS #1 v1.5
4988 RSA encryption was accidentally removed in s3_srvr.c in OpenSSL 0.9.5
4989 when fixing the server behaviour for backwards-compatible 'client
4990 hello' messages. (Note that the attack is impractical against
4991 SSL 3.0 and TLS 1.0 anyway because length and version checking
4992 means that the probability of guessing a valid ciphertext is
4993 around 2^-40; see section 5 in Bleichenbacher's CRYPTO '98
4996 Before 0.9.5, the countermeasure (hide the error by generating a
4997 random 'decryption result') did not work properly because
4998 ERR_clear_error() was missing, meaning that SSL_get_error() would
4999 detect the supposedly ignored error.
5001 Both problems are now fixed.
5004 *) In crypto/bio/bf_buff.c, increase DEFAULT_BUFFER_SIZE to 4096
5005 (previously it was 1024).
5008 *) Fix for compatibility mode trust settings: ignore trust settings
5009 unless some valid trust or reject settings are present.
5012 *) Fix for blowfish EVP: its a variable length cipher.
5015 *) Fix various bugs related to DSA S/MIME verification. Handle missing
5016 parameters in DSA public key structures and return an error in the
5017 DSA routines if parameters are absent.
5020 *) In versions up to 0.9.6, RAND_file_name() resorted to file ".rnd"
5021 in the current directory if neither $RANDFILE nor $HOME was set.
5022 RAND_file_name() in 0.9.6a returned NULL in this case. This has
5023 caused some confusion to Windows users who haven't defined $HOME.
5024 Thus RAND_file_name() is changed again: e_os.h can define a
5025 DEFAULT_HOME, which will be used if $HOME is not set.
5026 For Windows, we use "C:"; on other platforms, we still require
5027 environment variables.
5029 *) Move 'if (!initialized) RAND_poll()' into regions protected by
5030 CRYPTO_LOCK_RAND. This is not strictly necessary, but avoids
5031 having multiple threads call RAND_poll() concurrently.
5034 *) In crypto/rand/md_rand.c, replace 'add_do_not_lock' flag by a
5035 combination of a flag and a thread ID variable.
5036 Otherwise while one thread is in ssleay_rand_bytes (which sets the
5037 flag), *other* threads can enter ssleay_add_bytes without obeying
5038 the CRYPTO_LOCK_RAND lock (and may even illegally release the lock
5039 that they do not hold after the first thread unsets add_do_not_lock).
5042 *) Change bctest again: '-x' expressions are not available in all
5046 Changes between 0.9.6 and 0.9.6a [5 Apr 2001]
5048 *) Fix a couple of memory leaks in PKCS7_dataDecode()
5049 [Steve Henson, reported by Heyun Zheng <hzheng@atdsprint.com>]
5051 *) Change Configure and Makefiles to provide EXE_EXT, which will contain
5052 the default extension for executables, if any. Also, make the perl
5053 scripts that use symlink() to test if it really exists and use "cp"
5054 if it doesn't. All this made OpenSSL compilable and installable in
5058 *) Fix for asn1_GetSequence() for indefinite length constructed data.
5059 If SEQUENCE is length is indefinite just set c->slen to the total
5060 amount of data available.
5061 [Steve Henson, reported by shige@FreeBSD.org]
5062 [This change does not apply to 0.9.7.]
5064 *) Change bctest to avoid here-documents inside command substitution
5065 (workaround for FreeBSD /bin/sh bug).
5066 For compatibility with Ultrix, avoid shell functions (introduced
5067 in the bctest version that searches along $PATH).
5070 *) Rename 'des_encrypt' to 'des_encrypt1'. This avoids the clashes
5071 with des_encrypt() defined on some operating systems, like Solaris
5075 *) Check the result of RSA-CRT (see D. Boneh, R. DeMillo, R. Lipton:
5076 On the Importance of Eliminating Errors in Cryptographic
5077 Computations, J. Cryptology 14 (2001) 2, 101-119,
5078 http://theory.stanford.edu/~dabo/papers/faults.ps.gz).
5081 *) MIPS assembler BIGNUM division bug fix.
5084 *) Disabled incorrect Alpha assembler code.
5087 *) Fix PKCS#7 decode routines so they correctly update the length
5088 after reading an EOC for the EXPLICIT tag.
5090 [This change does not apply to 0.9.7.]
5092 *) Fix bug in PKCS#12 key generation routines. This was triggered
5093 if a 3DES key was generated with a 0 initial byte. Include
5094 PKCS12_BROKEN_KEYGEN compilation option to retain the old
5095 (but broken) behaviour.
5098 *) Enhance bctest to search for a working bc along $PATH and print
5100 [Tim Rice <tim@multitalents.net> via Richard Levitte]
5102 *) Fix memory leaks in err.c: free err_data string if necessary;
5103 don't write to the wrong index in ERR_set_error_data.
5106 *) Implement ssl23_peek (analogous to ssl23_read), which previously
5110 *) Replace rdtsc with _emit statements for VC++ version 5.
5111 [Jeremy Cooper <jeremy@baymoo.org>]
5113 *) Make it possible to reuse SSLv2 sessions.
5116 *) In copy_email() check for >= 0 as a return value for
5117 X509_NAME_get_index_by_NID() since 0 is a valid index.
5118 [Steve Henson reported by Massimiliano Pala <madwolf@opensca.org>]
5120 *) Avoid coredump with unsupported or invalid public keys by checking if
5121 X509_get_pubkey() fails in PKCS7_verify(). Fix memory leak when
5122 PKCS7_verify() fails with non detached data.
5125 *) Don't use getenv in library functions when run as setuid/setgid.
5126 New function OPENSSL_issetugid().
5129 *) Avoid false positives in memory leak detection code (crypto/mem_dbg.c)
5130 due to incorrect handling of multi-threading:
5132 1. Fix timing glitch in the MemCheck_off() portion of CRYPTO_mem_ctrl().
5134 2. Fix logical glitch in is_MemCheck_on() aka CRYPTO_is_mem_check_on().
5136 3. Count how many times MemCheck_off() has been called so that
5137 nested use can be treated correctly. This also avoids
5138 inband-signalling in the previous code (which relied on the
5139 assumption that thread ID 0 is impossible).
5142 *) Add "-rand" option also to s_client and s_server.
5145 *) Fix CPU detection on Irix 6.x.
5146 [Kurt Hockenbury <khockenb@stevens-tech.edu> and
5147 "Bruce W. Forsberg" <bruce.forsberg@baesystems.com>]
5149 *) Fix X509_NAME bug which produced incorrect encoding if X509_NAME
5152 [This change does not apply to 0.9.7.]
5154 *) Use the cached encoding of an X509_NAME structure rather than
5155 copying it. This is apparently the reason for the libsafe "errors"
5156 but the code is actually correct.
5159 *) Add new function BN_rand_range(), and fix DSA_sign_setup() to prevent
5160 Bleichenbacher's DSA attack.
5161 Extend BN_[pseudo_]rand: As before, top=1 forces the highest two bits
5162 to be set and top=0 forces the highest bit to be set; top=-1 is new
5163 and leaves the highest bit random.
5164 [Ulf Moeller, Bodo Moeller]
5166 *) In the NCONF_...-based implementations for CONF_... queries
5167 (crypto/conf/conf_lib.c), if the input LHASH is NULL, avoid using
5168 a temporary CONF structure with the data component set to NULL
5169 (which gives segmentation faults in lh_retrieve).
5170 Instead, use NULL for the CONF pointer in CONF_get_string and
5171 CONF_get_number (which may use environment variables) and directly
5172 return NULL from CONF_get_section.
5175 *) Fix potential buffer overrun for EBCDIC.
5178 *) Tolerate nonRepudiation as being valid for S/MIME signing and certSign
5179 keyUsage if basicConstraints absent for a CA.
5182 *) Make SMIME_write_PKCS7() write mail header values with a format that
5183 is more generally accepted (no spaces before the semicolon), since
5184 some programs can't parse those values properly otherwise. Also make
5185 sure BIO's that break lines after each write do not create invalid
5189 *) Make the CRL encoding routines work with empty SEQUENCE OF. The
5190 macros previously used would not encode an empty SEQUENCE OF
5191 and break the signature.
5193 [This change does not apply to 0.9.7.]
5195 *) Zero the premaster secret after deriving the master secret in
5199 *) Add some EVP_add_digest_alias registrations (as found in
5200 OpenSSL_add_all_digests()) to SSL_library_init()
5201 aka OpenSSL_add_ssl_algorithms(). This provides improved
5202 compatibility with peers using X.509 certificates
5203 with unconventional AlgorithmIdentifier OIDs.
5206 *) Fix for Irix with NO_ASM.
5207 ["Bruce W. Forsberg" <bruce.forsberg@baesystems.com>]
5209 *) ./config script fixes.
5210 [Ulf Moeller, Richard Levitte]
5212 *) Fix 'openssl passwd -1'.
5215 *) Change PKCS12_key_gen_asc() so it can cope with non null
5216 terminated strings whose length is passed in the passlen
5217 parameter, for example from PEM callbacks. This was done
5218 by adding an extra length parameter to asc2uni().
5219 [Steve Henson, reported by <oddissey@samsung.co.kr>]
5221 *) Fix C code generated by 'openssl dsaparam -C': If a BN_bin2bn
5222 call failed, free the DSA structure.
5225 *) Fix to uni2asc() to cope with zero length Unicode strings.
5226 These are present in some PKCS#12 files.
5229 *) Increase s2->wbuf allocation by one byte in ssl2_new (ssl/s2_lib.c).
5230 Otherwise do_ssl_write (ssl/s2_pkt.c) will write beyond buffer limits
5231 when writing a 32767 byte record.
5232 [Bodo Moeller; problem reported by Eric Day <eday@concentric.net>]
5234 *) In RSA_eay_public_{en,ed}crypt and RSA_eay_mod_exp (rsa_eay.c),
5235 obtain lock CRYPTO_LOCK_RSA before setting rsa->_method_mod_{n,p,q}.
5237 (RSA objects have a reference count access to which is protected
5238 by CRYPTO_LOCK_RSA [see rsa_lib.c, s3_srvr.c, ssl_cert.c, ssl_rsa.c],
5239 so they are meant to be shared between threads.)
5240 [Bodo Moeller, Geoff Thorpe; original patch submitted by
5241 "Reddie, Steven" <Steven.Reddie@ca.com>]
5243 *) Fix a deadlock in CRYPTO_mem_leaks().
5246 *) Use better test patterns in bntest.
5249 *) rand_win.c fix for Borland C.
5252 *) BN_rshift bugfix for n == 0.
5255 *) Add a 'bctest' script that checks for some known 'bc' bugs
5256 so that 'make test' does not abort just because 'bc' is broken.
5259 *) Store verify_result within SSL_SESSION also for client side to
5260 avoid potential security hole. (Re-used sessions on the client side
5261 always resulted in verify_result==X509_V_OK, not using the original
5262 result of the server certificate verification.)
5265 *) Fix ssl3_pending: If the record in s->s3->rrec is not of type
5266 SSL3_RT_APPLICATION_DATA, return 0.
5267 Similarly, change ssl2_pending to return 0 if SSL_in_init(s) is true.
5271 Both ssl2_peek and ssl3_peek, which were totally broken in earlier
5272 releases, have been re-implemented by renaming the previous
5273 implementations of ssl2_read and ssl3_read to ssl2_read_internal
5274 and ssl3_read_internal, respectively, and adding 'peek' parameters
5275 to them. The new ssl[23]_{read,peek} functions are calls to
5276 ssl[23]_read_internal with the 'peek' flag set appropriately.
5277 A 'peek' parameter has also been added to ssl3_read_bytes, which
5278 does the actual work for ssl3_read_internal.
5281 *) Initialise "ex_data" member of RSA/DSA/DH structures prior to calling
5282 the method-specific "init()" handler. Also clean up ex_data after
5283 calling the method-specific "finish()" handler. Previously, this was
5284 happening the other way round.
5287 *) Increase BN_CTX_NUM (the number of BIGNUMs in a BN_CTX) to 16.
5288 The previous value, 12, was not always sufficient for BN_mod_exp().
5291 *) Make sure that shared libraries get the internal name engine with
5292 the full version number and not just 0. This should mark the
5293 shared libraries as not backward compatible. Of course, this should
5294 be changed again when we can guarantee backward binary compatibility.
5297 *) Fix typo in get_cert_by_subject() in by_dir.c
5298 [Jean-Marc Desperrier <jean-marc.desperrier@certplus.com>]
5300 *) Rework the system to generate shared libraries:
5302 - Make note of the expected extension for the shared libraries and
5303 if there is a need for symbolic links from for example libcrypto.so.0
5304 to libcrypto.so.0.9.7. There is extended info in Configure for
5307 - Make as few rebuilds of the shared libraries as possible.
5309 - Still avoid linking the OpenSSL programs with the shared libraries.
5311 - When installing, install the shared libraries separately from the
5315 *) Fix SSL_CTX_set_read_ahead macro to actually use its argument.
5317 Copy SSL_CTX's read_ahead flag to SSL object directly in SSL_new
5318 and not in SSL_clear because the latter is also used by the
5319 accept/connect functions; previously, the settings made by
5320 SSL_set_read_ahead would be lost during the handshake.
5321 [Bodo Moeller; problems reported by Anders Gertz <gertz@epact.se>]
5323 *) Correct util/mkdef.pl to be selective about disabled algorithms.
5324 Previously, it would create entries for disableed algorithms no
5328 *) Added several new manual pages for SSL_* function.
5331 Changes between 0.9.5a and 0.9.6 [24 Sep 2000]
5333 *) In ssl23_get_client_hello, generate an error message when faced
5334 with an initial SSL 3.0/TLS record that is too small to contain the
5335 first two bytes of the ClientHello message, i.e. client_version.
5336 (Note that this is a pathologic case that probably has never happened
5337 in real life.) The previous approach was to use the version number
5338 from the record header as a substitute; but our protocol choice
5339 should not depend on that one because it is not authenticated
5340 by the Finished messages.
5343 *) More robust randomness gathering functions for Windows.
5344 [Jeffrey Altman <jaltman@columbia.edu>]
5346 *) For compatibility reasons if the flag X509_V_FLAG_ISSUER_CHECK is
5347 not set then we don't setup the error code for issuer check errors
5348 to avoid possibly overwriting other errors which the callback does
5349 handle. If an application does set the flag then we assume it knows
5350 what it is doing and can handle the new informational codes
5354 *) Fix for a nasty bug in ASN1_TYPE handling. ASN1_TYPE is used for
5355 a general "ANY" type, as such it should be able to decode anything
5356 including tagged types. However it didn't check the class so it would
5357 wrongly interpret tagged types in the same way as their universal
5358 counterpart and unknown types were just rejected. Changed so that the
5359 tagged and unknown types are handled in the same way as a SEQUENCE:
5360 that is the encoding is stored intact. There is also a new type
5361 "V_ASN1_OTHER" which is used when the class is not universal, in this
5362 case we have no idea what the actual type is so we just lump them all
5366 *) On VMS, stdout may very well lead to a file that is written to
5367 in a record-oriented fashion. That means that every write() will
5368 write a separate record, which will be read separately by the
5369 programs trying to read from it. This can be very confusing.
5371 The solution is to put a BIO filter in the way that will buffer
5372 text until a linefeed is reached, and then write everything a
5373 line at a time, so every record written will be an actual line,
5374 not chunks of lines and not (usually doesn't happen, but I've
5375 seen it once) several lines in one record. BIO_f_linebuffer() is
5378 Currently, it's a VMS-only method, because that's where it has
5379 been tested well enough.
5382 *) Remove 'optimized' squaring variant in BN_mod_mul_montgomery,
5383 it can return incorrect results.
5384 (Note: The buggy variant was not enabled in OpenSSL 0.9.5a,
5385 but it was in 0.9.6-beta[12].)
5388 *) Disable the check for content being present when verifying detached
5389 signatures in pk7_smime.c. Some versions of Netscape (wrongly)
5390 include zero length content when signing messages.
5393 *) New BIO_shutdown_wr macro, which invokes the BIO_C_SHUTDOWN_WR
5394 BIO_ctrl (for BIO pairs).
5397 *) Add DSO method for VMS.
5400 *) Bug fix: Montgomery multiplication could produce results with the
5404 *) Add RPM specification openssl.spec and modify it to build three
5405 packages. The default package contains applications, application
5406 documentation and run-time libraries. The devel package contains
5407 include files, static libraries and function documentation. The
5408 doc package contains the contents of the doc directory. The original
5409 openssl.spec was provided by Damien Miller <djm@mindrot.org>.
5412 *) Add a large number of documentation files for many SSL routines.
5413 [Lutz Jaenicke <Lutz.Jaenicke@aet.TU-Cottbus.DE>]
5415 *) Add a configuration entry for Sony News 4.
5416 [NAKAJI Hiroyuki <nakaji@tutrp.tut.ac.jp>]
5418 *) Don't set the two most significant bits to one when generating a
5419 random number < q in the DSA library.
5422 *) New SSL API mode 'SSL_MODE_AUTO_RETRY'. This disables the default
5423 behaviour that SSL_read may result in SSL_ERROR_WANT_READ (even if
5424 the underlying transport is blocking) if a handshake took place.
5425 (The default behaviour is needed by applications such as s_client
5426 and s_server that use select() to determine when to use SSL_read;
5427 but for applications that know in advance when to expect data, it
5428 just makes things more complicated.)
5431 *) Add RAND_egd_bytes(), which gives control over the number of bytes read
5435 *) Add a few more EBCDIC conditionals that make `req' and `x509'
5436 work better on such systems.
5437 [Martin Kraemer <Martin.Kraemer@MchP.Siemens.De>]
5439 *) Add two demo programs for PKCS12_parse() and PKCS12_create().
5440 Update PKCS12_parse() so it copies the friendlyName and the
5441 keyid to the certificates aux info.
5444 *) Fix bug in PKCS7_verify() which caused an infinite loop
5445 if there was more than one signature.
5446 [Sven Uszpelkat <su@celocom.de>]
5448 *) Major change in util/mkdef.pl to include extra information
5449 about each symbol, as well as presentig variables as well
5450 as functions. This change means that there's n more need
5451 to rebuild the .num files when some algorithms are excluded.
5454 *) Allow the verify time to be set by an application,
5455 rather than always using the current time.
5458 *) Phase 2 verify code reorganisation. The certificate
5459 verify code now looks up an issuer certificate by a
5460 number of criteria: subject name, authority key id
5461 and key usage. It also verifies self signed certificates
5462 by the same criteria. The main comparison function is
5463 X509_check_issued() which performs these checks.
5465 Lot of changes were necessary in order to support this
5466 without completely rewriting the lookup code.
5468 Authority and subject key identifier are now cached.
5470 The LHASH 'certs' is X509_STORE has now been replaced
5471 by a STACK_OF(X509_OBJECT). This is mainly because an
5472 LHASH can't store or retrieve multiple objects with
5473 the same hash value.
5475 As a result various functions (which were all internal
5476 use only) have changed to handle the new X509_STORE
5477 structure. This will break anything that messed round
5478 with X509_STORE internally.
5480 The functions X509_STORE_add_cert() now checks for an
5481 exact match, rather than just subject name.
5483 The X509_STORE API doesn't directly support the retrieval
5484 of multiple certificates matching a given criteria, however
5485 this can be worked round by performing a lookup first
5486 (which will fill the cache with candidate certificates)
5487 and then examining the cache for matches. This is probably
5488 the best we can do without throwing out X509_LOOKUP
5489 entirely (maybe later...).
5491 The X509_VERIFY_CTX structure has been enhanced considerably.
5493 All certificate lookup operations now go via a get_issuer()
5494 callback. Although this currently uses an X509_STORE it
5495 can be replaced by custom lookups. This is a simple way
5496 to bypass the X509_STORE hackery necessary to make this
5497 work and makes it possible to use more efficient techniques
5498 in future. A very simple version which uses a simple
5499 STACK for its trusted certificate store is also provided
5500 using X509_STORE_CTX_trusted_stack().
5502 The verify_cb() and verify() callbacks now have equivalents
5503 in the X509_STORE_CTX structure.
5505 X509_STORE_CTX also has a 'flags' field which can be used
5506 to customise the verify behaviour.
5509 *) Add new PKCS#7 signing option PKCS7_NOSMIMECAP which
5510 excludes S/MIME capabilities.
5513 *) When a certificate request is read in keep a copy of the
5514 original encoding of the signed data and use it when outputing
5515 again. Signatures then use the original encoding rather than
5516 a decoded, encoded version which may cause problems if the
5517 request is improperly encoded.
5520 *) For consistency with other BIO_puts implementations, call
5521 buffer_write(b, ...) directly in buffer_puts instead of calling
5524 In BIO_puts, increment b->num_write as in BIO_write.
5525 [Peter.Sylvester@EdelWeb.fr]
5527 *) Fix BN_mul_word for the case where the word is 0. (We have to use
5528 BN_zero, we may not return a BIGNUM with an array consisting of
5532 *) Avoid calling abort() from within the library when problems are
5533 detected, except if preprocessor symbols have been defined
5534 (such as REF_CHECK, BN_DEBUG etc.).
5537 *) New openssl application 'rsautl'. This utility can be
5538 used for low level RSA operations. DER public key
5539 BIO/fp routines also added.
5542 *) New Configure entry and patches for compiling on QNX 4.
5543 [Andreas Schneider <andreas@ds3.etech.fh-hamburg.de>]
5545 *) A demo state-machine implementation was sponsored by
5546 Nuron (http://www.nuron.com/) and is now available in
5547 demos/state_machine.
5550 *) New options added to the 'dgst' utility for signature
5551 generation and verification.
5554 *) Unrecognized PKCS#7 content types are now handled via a
5555 catch all ASN1_TYPE structure. This allows unsupported
5556 types to be stored as a "blob" and an application can
5557 encode and decode it manually.
5560 *) Fix various signed/unsigned issues to make a_strex.c
5562 [Oscar Jacobsson <oscar.jacobsson@celocom.com>]
5564 *) ASN1 fixes. i2d_ASN1_OBJECT was not returning the correct
5565 length if passed a buffer. ASN1_INTEGER_to_BN failed
5566 if passed a NULL BN and its argument was negative.
5567 [Steve Henson, pointed out by Sven Heiberg <sven@tartu.cyber.ee>]
5569 *) Modification to PKCS#7 encoding routines to output definite
5570 length encoding. Since currently the whole structures are in
5571 memory there's not real point in using indefinite length
5572 constructed encoding. However if OpenSSL is compiled with
5573 the flag PKCS7_INDEFINITE_ENCODING the old form is used.
5576 *) Added BIO_vprintf() and BIO_vsnprintf().
5579 *) Added more prefixes to parse for in the the strings written
5580 through a logging bio, to cover all the levels that are available
5581 through syslog. The prefixes are now:
5583 PANIC, EMERG, EMR => LOG_EMERG
5584 ALERT, ALR => LOG_ALERT
5585 CRIT, CRI => LOG_CRIT
5586 ERROR, ERR => LOG_ERR
5587 WARNING, WARN, WAR => LOG_WARNING
5588 NOTICE, NOTE, NOT => LOG_NOTICE
5589 INFO, INF => LOG_INFO
5590 DEBUG, DBG => LOG_DEBUG
5592 and as before, if none of those prefixes are present at the
5593 beginning of the string, LOG_ERR is chosen.
5595 On Win32, the LOG_* levels are mapped according to this:
5597 LOG_EMERG, LOG_ALERT, LOG_CRIT, LOG_ERR => EVENTLOG_ERROR_TYPE
5598 LOG_WARNING => EVENTLOG_WARNING_TYPE
5599 LOG_NOTICE, LOG_INFO, LOG_DEBUG => EVENTLOG_INFORMATION_TYPE
5603 *) Made it possible to reconfigure with just the configuration
5604 argument "reconf" or "reconfigure". The command line arguments
5605 are stored in Makefile.ssl in the variable CONFIGURE_ARGS,
5606 and are retrieved from there when reconfiguring.
5610 [Assar Westerlund <assar@sics.se>, Richard Levitte]
5612 *) Add the arguments -CAfile and -CApath to the pkcs12 utility.
5615 *) The obj_dat.pl script was messing up the sorting of object
5616 names. The reason was that it compared the quoted version
5617 of strings as a result "OCSP" > "OCSP Signing" because
5618 " > SPACE. Changed script to store unquoted versions of
5619 names and add quotes on output. It was also omitting some
5620 names from the lookup table if they were given a default
5621 value (that is if SN is missing it is given the same
5622 value as LN and vice versa), these are now added on the
5623 grounds that if an object has a name we should be able to
5624 look it up. Finally added warning output when duplicate
5625 short or long names are found.
5628 *) Changes needed for Tandem NSK.
5629 [Scott Uroff <scott@xypro.com>]
5631 *) Fix SSL 2.0 rollback checking: Due to an off-by-one error in
5632 RSA_padding_check_SSLv23(), special padding was never detected
5633 and thus the SSL 3.0/TLS 1.0 countermeasure against protocol
5634 version rollback attacks was not effective.
5636 In s23_clnt.c, don't use special rollback-attack detection padding
5637 (RSA_SSLV23_PADDING) if SSL 2.0 is the only protocol enabled in the
5638 client; similarly, in s23_srvr.c, don't do the rollback check if
5639 SSL 2.0 is the only protocol enabled in the server.
5642 *) Make it possible to get hexdumps of unprintable data with 'openssl
5643 asn1parse'. By implication, the functions ASN1_parse_dump() and
5644 BIO_dump_indent() are added.
5647 *) New functions ASN1_STRING_print_ex() and X509_NAME_print_ex()
5648 these print out strings and name structures based on various
5649 flags including RFC2253 support and proper handling of
5650 multibyte characters. Added options to the 'x509' utility
5651 to allow the various flags to be set.
5654 *) Various fixes to use ASN1_TIME instead of ASN1_UTCTIME.
5655 Also change the functions X509_cmp_current_time() and
5656 X509_gmtime_adj() work with an ASN1_TIME structure,
5657 this will enable certificates using GeneralizedTime in validity
5658 dates to be checked.
5661 *) Make the NEG_PUBKEY_BUG code (which tolerates invalid
5662 negative public key encodings) on by default,
5663 NO_NEG_PUBKEY_BUG can be set to disable it.
5666 *) New function c2i_ASN1_OBJECT() which acts on ASN1_OBJECT
5667 content octets. An i2c_ASN1_OBJECT is unnecessary because
5668 the encoding can be trivially obtained from the structure.
5671 *) crypto/err.c locking bugfix: Use write locks (CRYPTO_w_[un]lock),
5672 not read locks (CRYPTO_r_[un]lock).
5675 *) A first attempt at creating official support for shared
5676 libraries through configuration. I've kept it so the
5677 default is static libraries only, and the OpenSSL programs
5678 are always statically linked for now, but there are
5679 preparations for dynamic linking in place.
5680 This has been tested on Linux and Tru64.
5683 *) Randomness polling function for Win9x, as described in:
5684 Peter Gutmann, Software Generation of Practically Strong
5688 *) Fix so PRNG is seeded in req if using an already existing
5692 *) New options to smime application. -inform and -outform
5693 allow alternative formats for the S/MIME message including
5694 PEM and DER. The -content option allows the content to be
5695 specified separately. This should allow things like Netscape
5696 form signing output easier to verify.
5699 *) Fix the ASN1 encoding of tags using the 'long form'.
5702 *) New ASN1 functions, i2c_* and c2i_* for INTEGER and BIT
5703 STRING types. These convert content octets to and from the
5704 underlying type. The actual tag and length octets are
5705 already assumed to have been read in and checked. These
5706 are needed because all other string types have virtually
5707 identical handling apart from the tag. By having versions
5708 of the ASN1 functions that just operate on content octets
5709 IMPLICIT tagging can be handled properly. It also allows
5710 the ASN1_ENUMERATED code to be cut down because ASN1_ENUMERATED
5711 and ASN1_INTEGER are identical apart from the tag.
5714 *) Change the handling of OID objects as follows:
5716 - New object identifiers are inserted in objects.txt, following
5717 the syntax given in objects.README.
5718 - objects.pl is used to process obj_mac.num and create a new
5720 - obj_dat.pl is used to create a new obj_dat.h, using the data in
5723 This is currently kind of a hack, and the perl code in objects.pl
5724 isn't very elegant, but it works as I intended. The simplest way
5725 to check that it worked correctly is to look in obj_dat.h and
5726 check the array nid_objs and make sure the objects haven't moved
5727 around (this is important!). Additions are OK, as well as
5728 consistent name changes.
5731 *) Add BSD-style MD5-based passwords to 'openssl passwd' (option '-1').
5734 *) Addition of the command line parameter '-rand file' to 'openssl req'.
5735 The given file adds to whatever has already been seeded into the
5736 random pool through the RANDFILE configuration file option or
5737 environment variable, or the default random state file.
5740 *) mkstack.pl now sorts each macro group into lexical order.
5741 Previously the output order depended on the order the files
5742 appeared in the directory, resulting in needless rewriting
5746 *) Patches to make OpenSSL compile under Win32 again. Mostly
5747 work arounds for the VC++ problem that it treats func() as
5748 func(void). Also stripped out the parts of mkdef.pl that
5749 added extra typesafe functions: these no longer exist.
5752 *) Reorganisation of the stack code. The macros are now all
5753 collected in safestack.h . Each macro is defined in terms of
5754 a "stack macro" of the form SKM_<name>(type, a, b). The
5755 DEBUG_SAFESTACK is now handled in terms of function casts,
5756 this has the advantage of retaining type safety without the
5757 use of additional functions. If DEBUG_SAFESTACK is not defined
5758 then the non typesafe macros are used instead. Also modified the
5759 mkstack.pl script to handle the new form. Needs testing to see
5760 if which (if any) compilers it chokes and maybe make DEBUG_SAFESTACK
5761 the default if no major problems. Similar behaviour for ASN1_SET_OF
5762 and PKCS12_STACK_OF.
5765 *) When some versions of IIS use the 'NET' form of private key the
5766 key derivation algorithm is different. Normally MD5(password) is
5767 used as a 128 bit RC4 key. In the modified case
5768 MD5(MD5(password) + "SGCKEYSALT") is used insted. Added some
5769 new functions i2d_RSA_NET(), d2i_RSA_NET() etc which are the same
5770 as the old Netscape_RSA functions except they have an additional
5771 'sgckey' parameter which uses the modified algorithm. Also added
5772 an -sgckey command line option to the rsa utility. Thanks to
5773 Adrian Peck <bertie@ncipher.com> for posting details of the modified
5774 algorithm to openssl-dev.
5777 *) The evp_local.h macros were using 'c.##kname' which resulted in
5778 invalid expansion on some systems (SCO 5.0.5 for example).
5779 Corrected to 'c.kname'.
5780 [Phillip Porch <root@theporch.com>]
5782 *) New X509_get1_email() and X509_REQ_get1_email() functions that return
5783 a STACK of email addresses from a certificate or request, these look
5784 in the subject name and the subject alternative name extensions and
5785 omit any duplicate addresses.
5788 *) Re-implement BN_mod_exp2_mont using independent (and larger) windows.
5789 This makes DSA verification about 2 % faster.
5792 *) Increase maximum window size in BN_mod_exp_... to 6 bits instead of 5
5793 (meaning that now 2^5 values will be precomputed, which is only 4 KB
5794 plus overhead for 1024 bit moduli).
5795 This makes exponentiations about 0.5 % faster for 1024 bit
5796 exponents (as measured by "openssl speed rsa2048").
5799 *) Rename memory handling macros to avoid conflicts with other
5801 Malloc => OPENSSL_malloc
5802 Malloc_locked => OPENSSL_malloc_locked
5803 Realloc => OPENSSL_realloc
5804 Free => OPENSSL_free
5807 *) New function BN_mod_exp_mont_word for small bases (roughly 15%
5808 faster than BN_mod_exp_mont, i.e. 7% for a full DH exchange).
5811 *) CygWin32 support.
5812 [John Jarvie <jjarvie@newsguy.com>]
5814 *) The type-safe stack code has been rejigged. It is now only compiled
5815 in when OpenSSL is configured with the DEBUG_SAFESTACK option and
5816 by default all type-specific stack functions are "#define"d back to
5817 standard stack functions. This results in more streamlined output
5818 but retains the type-safety checking possibilities of the original
5822 *) The STACK code has been cleaned up, and certain type declarations
5823 that didn't make a lot of sense have been brought in line. This has
5824 also involved a cleanup of sorts in safestack.h to more correctly
5825 map type-safe stack functions onto their plain stack counterparts.
5826 This work has also resulted in a variety of "const"ifications of
5827 lots of the code, especially "_cmp" operations which should normally
5828 be prototyped with "const" parameters anyway.
5831 *) When generating bytes for the first time in md_rand.c, 'stir the pool'
5832 by seeding with STATE_SIZE dummy bytes (with zero entropy count).
5833 (The PRNG state consists of two parts, the large pool 'state' and 'md',
5834 where all of 'md' is used each time the PRNG is used, but 'state'
5835 is used only indexed by a cyclic counter. As entropy may not be
5836 well distributed from the beginning, 'md' is important as a
5837 chaining variable. However, the output function chains only half
5838 of 'md', i.e. 80 bits. ssleay_rand_add, on the other hand, chains
5839 all of 'md', and seeding with STATE_SIZE dummy bytes will result
5840 in all of 'state' being rewritten, with the new values depending
5841 on virtually all of 'md'. This overcomes the 80 bit limitation.)
5844 *) In ssl/s2_clnt.c and ssl/s3_clnt.c, call ERR_clear_error() when
5845 the handshake is continued after ssl_verify_cert_chain();
5846 otherwise, if SSL_VERIFY_NONE is set, remaining error codes
5847 can lead to 'unexplainable' connection aborts later.
5848 [Bodo Moeller; problem tracked down by Lutz Jaenicke]
5850 *) Major EVP API cipher revision.
5851 Add hooks for extra EVP features. This allows various cipher
5852 parameters to be set in the EVP interface. Support added for variable
5853 key length ciphers via the EVP_CIPHER_CTX_set_key_length() function and
5854 setting of RC2 and RC5 parameters.
5856 Modify EVP_OpenInit() and EVP_SealInit() to cope with variable key length
5859 Remove lots of duplicated code from the EVP library. For example *every*
5860 cipher init() function handles the 'iv' in the same way according to the
5861 cipher mode. They also all do nothing if the 'key' parameter is NULL and
5862 for CFB and OFB modes they zero ctx->num.
5864 New functionality allows removal of S/MIME code RC2 hack.
5866 Most of the routines have the same form and so can be declared in terms
5869 By shifting this to the top level EVP_CipherInit() it can be removed from
5870 all individual ciphers. If the cipher wants to handle IVs or keys
5871 differently it can set the EVP_CIPH_CUSTOM_IV or EVP_CIPH_ALWAYS_CALL_INIT
5874 Change lots of functions like EVP_EncryptUpdate() to now return a
5875 value: although software versions of the algorithms cannot fail
5876 any installed hardware versions can.
5879 *) Implement SSL_OP_TLS_ROLLBACK_BUG: In ssl3_get_client_key_exchange, if
5880 this option is set, tolerate broken clients that send the negotiated
5881 protocol version number instead of the requested protocol version
5885 *) Call dh_tmp_cb (set by ..._TMP_DH_CB) with correct 'is_export' flag;
5886 i.e. non-zero for export ciphersuites, zero otherwise.
5887 Previous versions had this flag inverted, inconsistent with
5888 rsa_tmp_cb (..._TMP_RSA_CB).
5889 [Bodo Moeller; problem reported by Amit Chopra]
5891 *) Add missing DSA library text string. Work around for some IIS
5892 key files with invalid SEQUENCE encoding.
5895 *) Add a document (doc/standards.txt) that list all kinds of standards
5896 and so on that are implemented in OpenSSL.
5899 *) Enhance c_rehash script. Old version would mishandle certificates
5900 with the same subject name hash and wouldn't handle CRLs at all.
5901 Added -fingerprint option to crl utility, to support new c_rehash
5905 *) Eliminate non-ANSI declarations in crypto.h and stack.h.
5908 *) Fix for SSL server purpose checking. Server checking was
5909 rejecting certificates which had extended key usage present
5910 but no ssl client purpose.
5911 [Steve Henson, reported by Rene Grosser <grosser@hisolutions.com>]
5913 *) Make PKCS#12 code work with no password. The PKCS#12 spec
5914 is a little unclear about how a blank password is handled.
5915 Since the password in encoded as a BMPString with terminating
5916 double NULL a zero length password would end up as just the
5917 double NULL. However no password at all is different and is
5918 handled differently in the PKCS#12 key generation code. NS
5919 treats a blank password as zero length. MSIE treats it as no
5920 password on export: but it will try both on import. We now do
5921 the same: PKCS12_parse() tries zero length and no password if
5922 the password is set to "" or NULL (NULL is now a valid password:
5923 it wasn't before) as does the pkcs12 application.
5926 *) Bugfixes in apps/x509.c: Avoid a memory leak; and don't use
5927 perror when PEM_read_bio_X509_REQ fails, the error message must
5928 be obtained from the error queue.
5931 *) Avoid 'thread_hash' memory leak in crypto/err/err.c by freeing
5932 it in ERR_remove_state if appropriate, and change ERR_get_state
5933 accordingly to avoid race conditions (this is necessary because
5934 thread_hash is no longer constant once set).
5937 *) Bugfix for linux-elf makefile.one.
5940 *) RSA_get_default_method() will now cause a default
5941 RSA_METHOD to be chosen if one doesn't exist already.
5942 Previously this was only set during a call to RSA_new()
5943 or RSA_new_method(NULL) meaning it was possible for
5944 RSA_get_default_method() to return NULL.
5947 *) Added native name translation to the existing DSO code
5948 that will convert (if the flag to do so is set) filenames
5949 that are sufficiently small and have no path information
5950 into a canonical native form. Eg. "blah" converted to
5951 "libblah.so" or "blah.dll" etc.
5954 *) New function ERR_error_string_n(e, buf, len) which is like
5955 ERR_error_string(e, buf), but writes at most 'len' bytes
5956 including the 0 terminator. For ERR_error_string_n, 'buf'
5958 [Damien Miller <djm@mindrot.org>, Bodo Moeller]
5960 *) CONF library reworked to become more general. A new CONF
5961 configuration file reader "class" is implemented as well as a
5962 new functions (NCONF_*, for "New CONF") to handle it. The now
5963 old CONF_* functions are still there, but are reimplemented to
5964 work in terms of the new functions. Also, a set of functions
5965 to handle the internal storage of the configuration data is
5966 provided to make it easier to write new configuration file
5967 reader "classes" (I can definitely see something reading a
5968 configuration file in XML format, for example), called _CONF_*,
5969 or "the configuration storage API"...
5971 The new configuration file reading functions are:
5973 NCONF_new, NCONF_free, NCONF_load, NCONF_load_fp, NCONF_load_bio,
5974 NCONF_get_section, NCONF_get_string, NCONF_get_numbre
5976 NCONF_default, NCONF_WIN32
5978 NCONF_dump_fp, NCONF_dump_bio
5980 NCONF_default and NCONF_WIN32 are method (or "class") choosers,
5981 NCONF_new creates a new CONF object. This works in the same way
5982 as other interfaces in OpenSSL, like the BIO interface.
5983 NCONF_dump_* dump the internal storage of the configuration file,
5984 which is useful for debugging. All other functions take the same
5985 arguments as the old CONF_* functions wth the exception of the
5986 first that must be a `CONF *' instead of a `LHASH *'.
5988 To make it easer to use the new classes with the old CONF_* functions,
5989 the function CONF_set_default_method is provided.
5992 *) Add '-tls1' option to 'openssl ciphers', which was already
5993 mentioned in the documentation but had not been implemented.
5994 (This option is not yet really useful because even the additional
5995 experimental TLS 1.0 ciphers are currently treated as SSL 3.0 ciphers.)
5998 *) Initial DSO code added into libcrypto for letting OpenSSL (and
5999 OpenSSL-based applications) load shared libraries and bind to
6000 them in a portable way.
6001 [Geoff Thorpe, with contributions from Richard Levitte]
6003 Changes between 0.9.5 and 0.9.5a [1 Apr 2000]
6005 *) Make sure _lrotl and _lrotr are only used with MSVC.
6007 *) Use lock CRYPTO_LOCK_RAND correctly in ssleay_rand_status
6008 (the default implementation of RAND_status).
6010 *) Rename openssl x509 option '-crlext', which was added in 0.9.5,
6011 to '-clrext' (= clear extensions), as intended and documented.
6012 [Bodo Moeller; inconsistency pointed out by Michael Attili
6015 *) Fix for HMAC. It wasn't zeroing the rest of the block if the key length
6016 was larger than the MD block size.
6017 [Steve Henson, pointed out by Yost William <YostW@tce.com>]
6019 *) Modernise PKCS12_parse() so it uses STACK_OF(X509) for its ca argument
6020 fix a leak when the ca argument was passed as NULL. Stop X509_PUBKEY_set()
6021 using the passed key: if the passed key was a private key the result
6022 of X509_print(), for example, would be to print out all the private key
6026 *) des_quad_cksum() byte order bug fix.
6027 [Ulf Möller, using the problem description in krb4-0.9.7, where
6028 the solution is attributed to Derrick J Brashear <shadow@DEMENTIA.ORG>]
6030 *) Fix so V_ASN1_APP_CHOOSE works again: however its use is strongly
6032 [Steve Henson, pointed out by Brian Korver <briank@cs.stanford.edu>]
6034 *) For easily testing in shell scripts whether some command
6035 'openssl XXX' exists, the new pseudo-command 'openssl no-XXX'
6036 returns with exit code 0 iff no command of the given name is available.
6037 'no-XXX' is printed in this case, 'XXX' otherwise. In both cases,
6038 the output goes to stdout and nothing is printed to stderr.
6039 Additional arguments are always ignored.
6041 Since for each cipher there is a command of the same name,
6042 the 'no-cipher' compilation switches can be tested this way.
6044 ('openssl no-XXX' is not able to detect pseudo-commands such
6045 as 'quit', 'list-XXX-commands', or 'no-XXX' itself.)
6048 *) Update test suite so that 'make test' succeeds in 'no-rsa' configuration.
6051 *) For SSL_[CTX_]set_tmp_dh, don't create a DH key if SSL_OP_SINGLE_DH_USE
6052 is set; it will be thrown away anyway because each handshake creates
6054 ssl_cert_dup, which is used by SSL_new, now copies DH keys in addition
6055 to parameters -- in previous versions (since OpenSSL 0.9.3) the
6056 'default key' from SSL_CTX_set_tmp_dh would always be lost, meanining
6057 you effectivly got SSL_OP_SINGLE_DH_USE when using this macro.
6060 *) New s_client option -ign_eof: EOF at stdin is ignored, and
6061 'Q' and 'R' lose their special meanings (quit/renegotiate).
6062 This is part of what -quiet does; unlike -quiet, -ign_eof
6063 does not suppress any output.
6066 *) Add compatibility options to the purpose and trust code. The
6067 purpose X509_PURPOSE_ANY is "any purpose" which automatically
6068 accepts a certificate or CA, this was the previous behaviour,
6069 with all the associated security issues.
6071 X509_TRUST_COMPAT is the old trust behaviour: only and
6072 automatically trust self signed roots in certificate store. A
6073 new trust setting X509_TRUST_DEFAULT is used to specify that
6074 a purpose has no associated trust setting and it should instead
6075 use the value in the default purpose.
6078 *) Fix the PKCS#8 DSA private key code so it decodes keys again
6079 and fix a memory leak.
6082 *) In util/mkerr.pl (which implements 'make errors'), preserve
6083 reason strings from the previous version of the .c file, as
6084 the default to have only downcase letters (and digits) in
6085 automatically generated reasons codes is not always appropriate.
6088 *) In ERR_load_ERR_strings(), build an ERR_LIB_SYS error reason table
6089 using strerror. Previously, ERR_reason_error_string() returned
6090 library names as reason strings for SYSerr; but SYSerr is a special
6091 case where small numbers are errno values, not library numbers.
6094 *) Add '-dsaparam' option to 'openssl dhparam' application. This
6095 converts DSA parameters into DH parameters. (When creating parameters,
6096 DSA_generate_parameters is used.)
6099 *) Include 'length' (recommended exponent length) in C code generated
6100 by 'openssl dhparam -C'.
6103 *) The second argument to set_label in perlasm was already being used
6104 so couldn't be used as a "file scope" flag. Moved to third argument
6108 *) In PEM_ASN1_write_bio and some other functions, use RAND_pseudo_bytes
6109 instead of RAND_bytes for encryption IVs and salts.
6112 *) Include RAND_status() into RAND_METHOD instead of implementing
6113 it only for md_rand.c Otherwise replacing the PRNG by calling
6114 RAND_set_rand_method would be impossible.
6117 *) Don't let DSA_generate_key() enter an infinite loop if the random
6118 number generation fails.
6121 *) New 'rand' application for creating pseudo-random output.
6124 *) Added configuration support for Linux/IA64
6125 [Rolf Haberrecker <rolf@suse.de>]
6127 *) Assembler module support for Mingw32.
6130 *) Shared library support for HPUX (in shlib/).
6131 [Lutz Jaenicke <Lutz.Jaenicke@aet.TU-Cottbus.DE> and Anonymous]
6133 *) Shared library support for Solaris gcc.
6134 [Lutz Behnke <behnke@trustcenter.de>]
6136 Changes between 0.9.4 and 0.9.5 [28 Feb 2000]
6138 *) PKCS7_encrypt() was adding text MIME headers twice because they
6139 were added manually and by SMIME_crlf_copy().
6142 *) In bntest.c don't call BN_rand with zero bits argument.
6143 [Steve Henson, pointed out by Andrew W. Gray <agray@iconsinc.com>]
6145 *) BN_mul bugfix: In bn_mul_part_recursion() only the a>a[n] && b>b[n]
6146 case was implemented. This caused BN_div_recp() to fail occasionally.
6149 *) Add an optional second argument to the set_label() in the perl
6150 assembly language builder. If this argument exists and is set
6151 to 1 it signals that the assembler should use a symbol whose
6152 scope is the entire file, not just the current function. This
6153 is needed with MASM which uses the format label:: for this scope.
6154 [Steve Henson, pointed out by Peter Runestig <peter@runestig.com>]
6156 *) Change the ASN1 types so they are typedefs by default. Before
6157 almost all types were #define'd to ASN1_STRING which was causing
6158 STACK_OF() problems: you couldn't declare STACK_OF(ASN1_UTF8STRING)
6162 *) Change names of new functions to the new get1/get0 naming
6163 convention: After 'get1', the caller owns a reference count
6164 and has to call ..._free; 'get0' returns a pointer to some
6165 data structure without incrementing reference counters.
6166 (Some of the existing 'get' functions increment a reference
6167 counter, some don't.)
6168 Similarly, 'set1' and 'add1' functions increase reference
6169 counters or duplicate objects.
6172 *) Allow for the possibility of temp RSA key generation failure:
6173 the code used to assume it always worked and crashed on failure.
6176 *) Fix potential buffer overrun problem in BIO_printf().
6177 [Ulf Möller, using public domain code by Patrick Powell; problem
6178 pointed out by David Sacerdote <das33@cornell.edu>]
6180 *) Support EGD <http://www.lothar.com/tech/crypto/>. New functions
6181 RAND_egd() and RAND_status(). In the command line application,
6182 the EGD socket can be specified like a seed file using RANDFILE
6186 *) Allow the string CERTIFICATE to be tolerated in PKCS#7 structures.
6187 Some CAs (e.g. Verisign) distribute certificates in this form.
6190 *) Remove the SSL_ALLOW_ADH compile option and set the default cipher
6191 list to exclude them. This means that no special compilation option
6192 is needed to use anonymous DH: it just needs to be included in the
6196 *) Change the EVP_MD_CTX_type macro so its meaning consistent with
6197 EVP_MD_type. The old functionality is available in a new macro called
6198 EVP_MD_md(). Change code that uses it and update docs.
6201 *) ..._ctrl functions now have corresponding ..._callback_ctrl functions
6202 where the 'void *' argument is replaced by a function pointer argument.
6203 Previously 'void *' was abused to point to functions, which works on
6204 many platforms, but is not correct. As these functions are usually
6205 called by macros defined in OpenSSL header files, most source code
6206 should work without changes.
6209 *) <openssl/opensslconf.h> (which is created by Configure) now contains
6210 sections with information on -D... compiler switches used for
6211 compiling the library so that applications can see them. To enable
6212 one of these sections, a pre-processor symbol OPENSSL_..._DEFINES
6213 must be defined. E.g.,
6214 #define OPENSSL_ALGORITHM_DEFINES
6215 #include <openssl/opensslconf.h>
6216 defines all pertinent NO_<algo> symbols, such as NO_IDEA, NO_RSA, etc.
6217 [Richard Levitte, Ulf and Bodo Möller]
6219 *) Bugfix: Tolerate fragmentation and interleaving in the SSL 3/TLS
6223 *) Change the 'other' type in certificate aux info to a STACK_OF
6224 X509_ALGOR. Although not an AlgorithmIdentifier as such it has
6225 the required ASN1 format: arbitrary types determined by an OID.
6228 *) Add some PEM_write_X509_REQ_NEW() functions and a command line
6229 argument to 'req'. This is not because the function is newer or
6230 better than others it just uses the work 'NEW' in the certificate
6231 request header lines. Some software needs this.
6234 *) Reorganise password command line arguments: now passwords can be
6235 obtained from various sources. Delete the PEM_cb function and make
6236 it the default behaviour: i.e. if the callback is NULL and the
6237 usrdata argument is not NULL interpret it as a null terminated pass
6238 phrase. If usrdata and the callback are NULL then the pass phrase
6239 is prompted for as usual.
6242 *) Add support for the Compaq Atalla crypto accelerator. If it is installed,
6243 the support is automatically enabled. The resulting binaries will
6244 autodetect the card and use it if present.
6245 [Ben Laurie and Compaq Inc.]
6247 *) Work around for Netscape hang bug. This sends certificate request
6248 and server done in one record. Since this is perfectly legal in the
6249 SSL/TLS protocol it isn't a "bug" option and is on by default. See
6250 the bugs/SSLv3 entry for more info.
6253 *) HP-UX tune-up: new unified configs, HP C compiler bug workaround.
6256 *) Add -rand argument to smime and pkcs12 applications and read/write
6260 *) New 'passwd' tool for crypt(3) and apr1 password hashes.
6263 *) Add command line password options to the remaining applications.
6266 *) Bug fix for BN_div_recp() for numerators with an even number of
6270 *) More tests in bntest.c, and changed test_bn output.
6273 *) ./config recognizes MacOS X now.
6276 *) Bug fix for BN_div() when the first words of num and divsor are
6277 equal (it gave wrong results if (rem=(n1-q*d0)&BN_MASK2) < d0).
6280 *) Add support for various broken PKCS#8 formats, and command line
6281 options to produce them.
6284 *) New functions BN_CTX_start(), BN_CTX_get() and BT_CTX_end() to
6285 get temporary BIGNUMs from a BN_CTX.
6288 *) Correct return values in BN_mod_exp_mont() and BN_mod_exp2_mont()
6292 *) Change the SSLeay_add_all_*() functions to OpenSSL_add_all_*() and
6293 include a #define from the old name to the new. The original intent
6294 was that statically linked binaries could for example just call
6295 SSLeay_add_all_ciphers() to just add ciphers to the table and not
6296 link with digests. This never worked becayse SSLeay_add_all_digests()
6297 and SSLeay_add_all_ciphers() were in the same source file so calling
6298 one would link with the other. They are now in separate source files.
6301 *) Add a new -notext option to 'ca' and a -pubkey option to 'spkac'.
6304 *) Use a less unusual form of the Miller-Rabin primality test (it used
6305 a binary algorithm for exponentiation integrated into the Miller-Rabin
6306 loop, our standard modexp algorithms are faster).
6309 *) Support for the EBCDIC character set completed.
6310 [Martin Kraemer <Martin.Kraemer@Mch.SNI.De>]
6312 *) Source code cleanups: use const where appropriate, eliminate casts,
6313 use void * instead of char * in lhash.
6316 *) Bugfix: ssl3_send_server_key_exchange was not restartable
6317 (the state was not changed to SSL3_ST_SW_KEY_EXCH_B, and because of
6318 this the server could overwrite ephemeral keys that the client
6322 *) Turn DSA_is_prime into a macro that calls BN_is_prime,
6323 using 50 iterations of the Rabin-Miller test.
6325 DSA_generate_parameters now uses BN_is_prime_fasttest (with 50
6326 iterations of the Rabin-Miller test as required by the appendix
6327 to FIPS PUB 186[-1]) instead of DSA_is_prime.
6328 As BN_is_prime_fasttest includes trial division, DSA parameter
6329 generation becomes much faster.
6331 This implies a change for the callback functions in DSA_is_prime
6332 and DSA_generate_parameters: The callback function is called once
6333 for each positive witness in the Rabin-Miller test, not just
6334 occasionally in the inner loop; and the parameters to the
6335 callback function now provide an iteration count for the outer
6336 loop rather than for the current invocation of the inner loop.
6337 DSA_generate_parameters additionally can call the callback
6338 function with an 'iteration count' of -1, meaning that a
6339 candidate has passed the trial division test (when q is generated
6340 from an application-provided seed, trial division is skipped).
6343 *) New function BN_is_prime_fasttest that optionally does trial
6344 division before starting the Rabin-Miller test and has
6345 an additional BN_CTX * argument (whereas BN_is_prime always
6346 has to allocate at least one BN_CTX).
6347 'callback(1, -1, cb_arg)' is called when a number has passed the
6348 trial division stage.
6351 *) Fix for bug in CRL encoding. The validity dates weren't being handled
6355 *) New -pkcs12 option to CA.pl script to write out a PKCS#12 file.
6358 *) New function BN_pseudo_rand().
6361 *) Clean up BN_mod_mul_montgomery(): replace the broken (and unreadable)
6362 bignum version of BN_from_montgomery() with the working code from
6363 SSLeay 0.9.0 (the word based version is faster anyway), and clean up
6367 *) Avoid a race condition in s2_clnt.c (function get_server_hello) that
6368 made it impossible to use the same SSL_SESSION data structure in
6369 SSL2 clients in multiple threads.
6372 *) The return value of RAND_load_file() no longer counts bytes obtained
6373 by stat(). RAND_load_file(..., -1) is new and uses the complete file
6374 to seed the PRNG (previously an explicit byte count was required).
6375 [Ulf Möller, Bodo Möller]
6377 *) Clean up CRYPTO_EX_DATA functions, some of these didn't have prototypes
6378 used (char *) instead of (void *) and had casts all over the place.
6381 *) Make BN_generate_prime() return NULL on error if ret!=NULL.
6384 *) Retain source code compatibility for BN_prime_checks macro:
6385 BN_is_prime(..., BN_prime_checks, ...) now uses
6386 BN_prime_checks_for_size to determine the appropriate number of
6387 Rabin-Miller iterations.
6390 *) Diffie-Hellman uses "safe" primes: DH_check() return code renamed to
6391 DH_CHECK_P_NOT_SAFE_PRIME.
6392 (Check if this is true? OpenPGP calls them "strong".)
6395 *) Merge the functionality of "dh" and "gendh" programs into a new program
6396 "dhparam". The old programs are retained for now but will handle DH keys
6397 (instead of parameters) in future.
6400 *) Make the ciphers, s_server and s_client programs check the return values
6401 when a new cipher list is set.
6404 *) Enhance the SSL/TLS cipher mechanism to correctly handle the TLS 56bit
6405 ciphers. Before when the 56bit ciphers were enabled the sorting was
6408 The syntax for the cipher sorting has been extended to support sorting by
6409 cipher-strength (using the strength_bits hard coded in the tables).
6410 The new command is "@STRENGTH" (see also doc/apps/ciphers.pod).
6412 Fix a bug in the cipher-command parser: when supplying a cipher command
6413 string with an "undefined" symbol (neither command nor alphanumeric
6414 [A-Za-z0-9], ssl_set_cipher_list used to hang in an endless loop. Now
6415 an error is flagged.
6417 Due to the strength-sorting extension, the code of the
6418 ssl_create_cipher_list() function was completely rearranged. I hope that
6419 the readability was also increased :-)
6420 [Lutz Jaenicke <Lutz.Jaenicke@aet.TU-Cottbus.DE>]
6422 *) Minor change to 'x509' utility. The -CAcreateserial option now uses 1
6423 for the first serial number and places 2 in the serial number file. This
6424 avoids problems when the root CA is created with serial number zero and
6425 the first user certificate has the same issuer name and serial number
6429 *) Fixes to X509_ATTRIBUTE utilities, change the 'req' program so it uses
6430 the new code. Add documentation for this stuff.
6433 *) Changes to X509_ATTRIBUTE utilities. These have been renamed from
6434 X509_*() to X509at_*() on the grounds that they don't handle X509
6435 structures and behave in an analagous way to the X509v3 functions:
6436 they shouldn't be called directly but wrapper functions should be used
6439 So we also now have some wrapper functions that call the X509at functions
6440 when passed certificate requests. (TO DO: similar things can be done with
6441 PKCS#7 signed and unsigned attributes, PKCS#12 attributes and a few other
6442 things. Some of these need some d2i or i2d and print functionality
6443 because they handle more complex structures.)
6446 *) Add missing #ifndefs that caused missing symbols when building libssl
6447 as a shared library without RSA. Use #ifndef NO_SSL2 instead of
6448 NO_RSA in ssl/s2*.c.
6449 [Kris Kennaway <kris@hub.freebsd.org>, modified by Ulf Möller]
6451 *) Precautions against using the PRNG uninitialized: RAND_bytes() now
6452 has a return value which indicates the quality of the random data
6453 (1 = ok, 0 = not seeded). Also an error is recorded on the thread's
6454 error queue. New function RAND_pseudo_bytes() generates output that is
6455 guaranteed to be unique but not unpredictable. RAND_add is like
6456 RAND_seed, but takes an extra argument for an entropy estimate
6457 (RAND_seed always assumes full entropy).
6460 *) Do more iterations of Rabin-Miller probable prime test (specifically,
6461 3 for 1024-bit primes, 6 for 512-bit primes, 12 for 256-bit primes
6462 instead of only 2 for all lengths; see BN_prime_checks_for_size definition
6463 in crypto/bn/bn_prime.c for the complete table). This guarantees a
6464 false-positive rate of at most 2^-80 for random input.
6467 *) Rewrite ssl3_read_n (ssl/s3_pkt.c) avoiding a couple of bugs.
6470 *) New function X509_CTX_rget_chain() (renamed to X509_CTX_get1_chain
6471 in the 0.9.5 release), this returns the chain
6472 from an X509_CTX structure with a dup of the stack and all
6473 the X509 reference counts upped: so the stack will exist
6474 after X509_CTX_cleanup() has been called. Modify pkcs12.c
6477 Also make SSL_SESSION_print() print out the verify return
6481 *) Add manpage for the pkcs12 command. Also change the default
6482 behaviour so MAC iteration counts are used unless the new
6483 -nomaciter option is used. This improves file security and
6484 only older versions of MSIE (4.0 for example) need it.
6487 *) Honor the no-xxx Configure options when creating .DEF files.
6490 *) Add PKCS#10 attributes to field table: challengePassword,
6491 unstructuredName and unstructuredAddress. These are taken from
6492 draft PKCS#9 v2.0 but are compatible with v1.2 provided no
6493 international characters are used.
6495 More changes to X509_ATTRIBUTE code: allow the setting of types
6496 based on strings. Remove the 'loc' parameter when adding
6497 attributes because these will be a SET OF encoding which is sorted
6501 *) Initial changes to the 'req' utility to allow request generation
6502 automation. This will allow an application to just generate a template
6503 file containing all the field values and have req construct the
6506 Initial support for X509_ATTRIBUTE handling. Stacks of these are
6507 used all over the place including certificate requests and PKCS#7
6508 structures. They are currently handled manually where necessary with
6509 some primitive wrappers for PKCS#7. The new functions behave in a
6510 manner analogous to the X509 extension functions: they allow
6511 attributes to be looked up by NID and added.
6513 Later something similar to the X509V3 code would be desirable to
6514 automatically handle the encoding, decoding and printing of the
6515 more complex types. The string types like challengePassword can
6516 be handled by the string table functions.
6518 Also modified the multi byte string table handling. Now there is
6519 a 'global mask' which masks out certain types. The table itself
6520 can use the flag STABLE_NO_MASK to ignore the mask setting: this
6521 is useful when for example there is only one permissible type
6522 (as in countryName) and using the mask might result in no valid
6526 *) Clean up 'Finished' handling, and add functions SSL_get_finished and
6527 SSL_get_peer_finished to allow applications to obtain the latest
6528 Finished messages sent to the peer or expected from the peer,
6529 respectively. (SSL_get_peer_finished is usually the Finished message
6530 actually received from the peer, otherwise the protocol will be aborted.)
6532 As the Finished message are message digests of the complete handshake
6533 (with a total of 192 bits for TLS 1.0 and more for SSL 3.0), they can
6534 be used for external authentication procedures when the authentication
6535 provided by SSL/TLS is not desired or is not enough.
6538 *) Enhanced support for Alpha Linux is added. Now ./config checks if
6539 the host supports BWX extension and if Compaq C is present on the
6540 $PATH. Just exploiting of the BWX extension results in 20-30%
6541 performance kick for some algorithms, e.g. DES and RC4 to mention
6542 a couple. Compaq C in turn generates ~20% faster code for MD5 and
6546 *) Add support for MS "fast SGC". This is arguably a violation of the
6547 SSL3/TLS protocol. Netscape SGC does two handshakes: the first with
6548 weak crypto and after checking the certificate is SGC a second one
6549 with strong crypto. MS SGC stops the first handshake after receiving
6550 the server certificate message and sends a second client hello. Since
6551 a server will typically do all the time consuming operations before
6552 expecting any further messages from the client (server key exchange
6553 is the most expensive) there is little difference between the two.
6555 To get OpenSSL to support MS SGC we have to permit a second client
6556 hello message after we have sent server done. In addition we have to
6557 reset the MAC if we do get this second client hello.
6560 *) Add a function 'd2i_AutoPrivateKey()' this will automatically decide
6561 if a DER encoded private key is RSA or DSA traditional format. Changed
6562 d2i_PrivateKey_bio() to use it. This is only needed for the "traditional"
6563 format DER encoded private key. Newer code should use PKCS#8 format which
6564 has the key type encoded in the ASN1 structure. Added DER private key
6565 support to pkcs8 application.
6568 *) SSL 3/TLS 1 servers now don't request certificates when an anonymous
6569 ciphersuites has been selected (as required by the SSL 3/TLS 1
6570 specifications). Exception: When SSL_VERIFY_FAIL_IF_NO_PEER_CERT
6571 is set, we interpret this as a request to violate the specification
6572 (the worst that can happen is a handshake failure, and 'correct'
6573 behaviour would result in a handshake failure anyway).
6576 *) In SSL_CTX_add_session, take into account that there might be multiple
6577 SSL_SESSION structures with the same session ID (e.g. when two threads
6578 concurrently obtain them from an external cache).
6579 The internal cache can handle only one SSL_SESSION with a given ID,
6580 so if there's a conflict, we now throw out the old one to achieve
6584 *) Add OIDs for idea and blowfish in CBC mode. This will allow both
6585 to be used in PKCS#5 v2.0 and S/MIME. Also add checking to
6586 some routines that use cipher OIDs: some ciphers do not have OIDs
6587 defined and so they cannot be used for S/MIME and PKCS#5 v2.0 for
6591 *) Simplify the trust setting structure and code. Now we just have
6592 two sequences of OIDs for trusted and rejected settings. These will
6593 typically have values the same as the extended key usage extension
6594 and any application specific purposes.
6596 The trust checking code now has a default behaviour: it will just
6597 check for an object with the same NID as the passed id. Functions can
6598 be provided to override either the default behaviour or the behaviour
6599 for a given id. SSL client, server and email already have functions
6600 in place for compatibility: they check the NID and also return "trusted"
6601 if the certificate is self signed.
6604 *) Add d2i,i2d bio/fp functions for PrivateKey: these convert the
6605 traditional format into an EVP_PKEY structure.
6608 *) Add a password callback function PEM_cb() which either prompts for
6609 a password if usr_data is NULL or otherwise assumes it is a null
6610 terminated password. Allow passwords to be passed on command line
6611 environment or config files in a few more utilities.
6614 *) Add a bunch of DER and PEM functions to handle PKCS#8 format private
6615 keys. Add some short names for PKCS#8 PBE algorithms and allow them
6616 to be specified on the command line for the pkcs8 and pkcs12 utilities.
6617 Update documentation.
6620 *) Support for ASN1 "NULL" type. This could be handled before by using
6621 ASN1_TYPE but there wasn't any function that would try to read a NULL
6622 and produce an error if it couldn't. For compatibility we also have
6623 ASN1_NULL_new() and ASN1_NULL_free() functions but these are faked and
6624 don't allocate anything because they don't need to.
6627 *) Initial support for MacOS is now provided. Examine INSTALL.MacOS
6629 [Andy Polyakov, Roy Woods <roy@centicsystems.ca>]
6631 *) Rebuild of the memory allocation routines used by OpenSSL code and
6632 possibly others as well. The purpose is to make an interface that
6633 provide hooks so anyone can build a separate set of allocation and
6634 deallocation routines to be used by OpenSSL, for example memory
6635 pool implementations, or something else, which was previously hard
6636 since Malloc(), Realloc() and Free() were defined as macros having
6637 the values malloc, realloc and free, respectively (except for Win32
6638 compilations). The same is provided for memory debugging code.
6639 OpenSSL already comes with functionality to find memory leaks, but
6640 this gives people a chance to debug other memory problems.
6642 With these changes, a new set of functions and macros have appeared:
6644 CRYPTO_set_mem_debug_functions() [F]
6645 CRYPTO_get_mem_debug_functions() [F]
6646 CRYPTO_dbg_set_options() [F]
6647 CRYPTO_dbg_get_options() [F]
6648 CRYPTO_malloc_debug_init() [M]
6650 The memory debug functions are NULL by default, unless the library
6651 is compiled with CRYPTO_MDEBUG or friends is defined. If someone
6652 wants to debug memory anyway, CRYPTO_malloc_debug_init() (which
6653 gives the standard debugging functions that come with OpenSSL) or
6654 CRYPTO_set_mem_debug_functions() (tells OpenSSL to use functions
6655 provided by the library user) must be used. When the standard
6656 debugging functions are used, CRYPTO_dbg_set_options can be used to
6657 request additional information:
6658 CRYPTO_dbg_set_options(V_CYRPTO_MDEBUG_xxx) corresponds to setting
6659 the CRYPTO_MDEBUG_xxx macro when compiling the library.
6661 Also, things like CRYPTO_set_mem_functions will always give the
6662 expected result (the new set of functions is used for allocation
6663 and deallocation) at all times, regardless of platform and compiler
6666 To finish it up, some functions that were never use in any other
6667 way than through macros have a new API and new semantic:
6670 CRYPTO_dbg_realloc()
6673 All macros of value have retained their old syntax.
6674 [Richard Levitte and Bodo Moeller]
6676 *) Some S/MIME fixes. The OID for SMIMECapabilities was wrong, the
6677 ordering of SMIMECapabilities wasn't in "strength order" and there
6678 was a missing NULL in the AlgorithmIdentifier for the SHA1 signature
6682 *) Some ASN1 types with illegal zero length encoding (INTEGER,
6683 ENUMERATED and OBJECT IDENTIFIER) choked the ASN1 routines.
6684 [Frans Heymans <fheymans@isaserver.be>, modified by Steve Henson]
6686 *) Merge in my S/MIME library for OpenSSL. This provides a simple
6687 S/MIME API on top of the PKCS#7 code, a MIME parser (with enough
6688 functionality to handle multipart/signed properly) and a utility
6689 called 'smime' to call all this stuff. This is based on code I
6690 originally wrote for Celo who have kindly allowed it to be
6691 included in OpenSSL.
6694 *) Add variants des_set_key_checked and des_set_key_unchecked of
6695 des_set_key (aka des_key_sched). Global variable des_check_key
6696 decides which of these is called by des_set_key; this way
6697 des_check_key behaves as it always did, but applications and
6698 the library itself, which was buggy for des_check_key == 1,
6699 have a cleaner way to pick the version they need.
6702 *) New function PKCS12_newpass() which changes the password of a
6706 *) Modify X509_TRUST and X509_PURPOSE so it also uses a static and
6707 dynamic mix. In both cases the ids can be used as an index into the
6708 table. Also modified the X509_TRUST_add() and X509_PURPOSE_add()
6709 functions so they accept a list of the field values and the
6710 application doesn't need to directly manipulate the X509_TRUST
6714 *) Modify the ASN1_STRING_TABLE stuff so it also uses bsearch and doesn't
6718 *) Modify the way the V3 extension code looks up extensions. This now
6719 works in a similar way to the object code: we have some "standard"
6720 extensions in a static table which is searched with OBJ_bsearch()
6721 and the application can add dynamic ones if needed. The file
6722 crypto/x509v3/ext_dat.h now has the info: this file needs to be
6723 updated whenever a new extension is added to the core code and kept
6724 in ext_nid order. There is a simple program 'tabtest.c' which checks
6725 this. New extensions are not added too often so this file can readily
6726 be maintained manually.
6728 There are two big advantages in doing things this way. The extensions
6729 can be looked up immediately and no longer need to be "added" using
6730 X509V3_add_standard_extensions(): this function now does nothing.
6731 [Side note: I get *lots* of email saying the extension code doesn't
6732 work because people forget to call this function]
6733 Also no dynamic allocation is done unless new extensions are added:
6734 so if we don't add custom extensions there is no need to call
6735 X509V3_EXT_cleanup().
6738 *) Modify enc utility's salting as follows: make salting the default. Add a
6739 magic header, so unsalted files fail gracefully instead of just decrypting
6740 to garbage. This is because not salting is a big security hole, so people
6741 should be discouraged from doing it.
6744 *) Fixes and enhancements to the 'x509' utility. It allowed a message
6745 digest to be passed on the command line but it only used this
6746 parameter when signing a certificate. Modified so all relevant
6747 operations are affected by the digest parameter including the
6748 -fingerprint and -x509toreq options. Also -x509toreq choked if a
6749 DSA key was used because it didn't fix the digest.
6752 *) Initial certificate chain verify code. Currently tests the untrusted
6753 certificates for consistency with the verify purpose (which is set
6754 when the X509_STORE_CTX structure is set up) and checks the pathlength.
6756 There is a NO_CHAIN_VERIFY compilation option to keep the old behaviour:
6757 this is because it will reject chains with invalid extensions whereas
6758 every previous version of OpenSSL and SSLeay made no checks at all.
6760 Trust code: checks the root CA for the relevant trust settings. Trust
6761 settings have an initial value consistent with the verify purpose: e.g.
6762 if the verify purpose is for SSL client use it expects the CA to be
6763 trusted for SSL client use. However the default value can be changed to
6764 permit custom trust settings: one example of this would be to only trust
6765 certificates from a specific "secure" set of CAs.
6767 Also added X509_STORE_CTX_new() and X509_STORE_CTX_free() functions
6768 which should be used for version portability: especially since the
6769 verify structure is likely to change more often now.
6771 SSL integration. Add purpose and trust to SSL_CTX and SSL and functions
6772 to set them. If not set then assume SSL clients will verify SSL servers
6775 Two new options to the verify program: -untrusted allows a set of
6776 untrusted certificates to be passed in and -purpose which sets the
6777 intended purpose of the certificate. If a purpose is set then the
6778 new chain verify code is used to check extension consistency.
6781 *) Support for the authority information access extension.
6784 *) Modify RSA and DSA PEM read routines to transparently handle
6785 PKCS#8 format private keys. New *_PUBKEY_* functions that handle
6786 public keys in a format compatible with certificate
6787 SubjectPublicKeyInfo structures. Unfortunately there were already
6788 functions called *_PublicKey_* which used various odd formats so
6789 these are retained for compatibility: however the DSA variants were
6790 never in a public release so they have been deleted. Changed dsa/rsa
6791 utilities to handle the new format: note no releases ever handled public
6792 keys so we should be OK.
6794 The primary motivation for this change is to avoid the same fiasco
6795 that dogs private keys: there are several incompatible private key
6796 formats some of which are standard and some OpenSSL specific and
6797 require various evil hacks to allow partial transparent handling and
6798 even then it doesn't work with DER formats. Given the option anything
6799 other than PKCS#8 should be dumped: but the other formats have to
6800 stay in the name of compatibility.
6802 With public keys and the benefit of hindsight one standard format
6803 is used which works with EVP_PKEY, RSA or DSA structures: though
6804 it clearly returns an error if you try to read the wrong kind of key.
6806 Added a -pubkey option to the 'x509' utility to output the public key.
6807 Also rename the EVP_PKEY_get_*() to EVP_PKEY_rget_*()
6808 (renamed to EVP_PKEY_get1_*() in the OpenSSL 0.9.5 release) and add
6809 EVP_PKEY_rset_*() functions (renamed to EVP_PKEY_set1_*())
6810 that do the same as the EVP_PKEY_assign_*() except they up the
6811 reference count of the added key (they don't "swallow" the
6815 *) Fixes to crypto/x509/by_file.c the code to read in certificates and
6816 CRLs would fail if the file contained no certificates or no CRLs:
6817 added a new function to read in both types and return the number
6818 read: this means that if none are read it will be an error. The
6819 DER versions of the certificate and CRL reader would always fail
6820 because it isn't possible to mix certificates and CRLs in DER format
6821 without choking one or the other routine. Changed this to just read
6822 a certificate: this is the best we can do. Also modified the code
6823 in apps/verify.c to take notice of return codes: it was previously
6824 attempting to read in certificates from NULL pointers and ignoring
6825 any errors: this is one reason why the cert and CRL reader seemed
6826 to work. It doesn't check return codes from the default certificate
6827 routines: these may well fail if the certificates aren't installed.
6830 *) Code to support otherName option in GeneralName.
6833 *) First update to verify code. Change the verify utility
6834 so it warns if it is passed a self signed certificate:
6835 for consistency with the normal behaviour. X509_verify
6836 has been modified to it will now verify a self signed
6837 certificate if *exactly* the same certificate appears
6838 in the store: it was previously impossible to trust a
6839 single self signed certificate. This means that:
6840 openssl verify ss.pem
6841 now gives a warning about a self signed certificate but
6842 openssl verify -CAfile ss.pem ss.pem
6846 *) For servers, store verify_result in SSL_SESSION data structure
6847 (and add it to external session representation).
6848 This is needed when client certificate verifications fails,
6849 but an application-provided verification callback (set by
6850 SSL_CTX_set_cert_verify_callback) allows accepting the session
6851 anyway (i.e. leaves x509_store_ctx->error != X509_V_OK
6852 but returns 1): When the session is reused, we have to set
6853 ssl->verify_result to the appropriate error code to avoid
6855 [Bodo Moeller, problem pointed out by Lutz Jaenicke]
6857 *) Fix a bug in the new PKCS#7 code: it didn't consider the
6858 case in PKCS7_dataInit() where the signed PKCS7 structure
6859 didn't contain any existing data because it was being created.
6860 [Po-Cheng Chen <pocheng@nst.com.tw>, slightly modified by Steve Henson]
6862 *) Add a salt to the key derivation routines in enc.c. This
6863 forms the first 8 bytes of the encrypted file. Also add a
6864 -S option to allow a salt to be input on the command line.
6867 *) New function X509_cmp(). Oddly enough there wasn't a function
6868 to compare two certificates. We do this by working out the SHA1
6869 hash and comparing that. X509_cmp() will be needed by the trust
6873 *) SSL_get1_session() is like SSL_get_session(), but increments
6874 the reference count in the SSL_SESSION returned.
6875 [Geoff Thorpe <geoff@eu.c2.net>]
6877 *) Fix for 'req': it was adding a null to request attributes.
6878 Also change the X509_LOOKUP and X509_INFO code to handle
6879 certificate auxiliary information.
6882 *) Add support for 40 and 64 bit RC2 and RC4 algorithms: document
6886 *) Add the possibility to add extra information to the memory leak
6887 detecting output, to form tracebacks, showing from where each
6888 allocation was originated: CRYPTO_push_info("constant string") adds
6889 the string plus current file name and line number to a per-thread
6890 stack, CRYPTO_pop_info() does the obvious, CRYPTO_remove_all_info()
6891 is like calling CYRPTO_pop_info() until the stack is empty.
6892 Also updated memory leak detection code to be multi-thread-safe.
6895 *) Add options -text and -noout to pkcs7 utility and delete the
6896 encryption options which never did anything. Update docs.
6899 *) Add options to some of the utilities to allow the pass phrase
6900 to be included on either the command line (not recommended on
6901 OSes like Unix) or read from the environment. Update the
6902 manpages and fix a few bugs.
6905 *) Add a few manpages for some of the openssl commands.
6908 *) Fix the -revoke option in ca. It was freeing up memory twice,
6909 leaking and not finding already revoked certificates.
6912 *) Extensive changes to support certificate auxiliary information.
6913 This involves the use of X509_CERT_AUX structure and X509_AUX
6914 functions. An X509_AUX function such as PEM_read_X509_AUX()
6915 can still read in a certificate file in the usual way but it
6916 will also read in any additional "auxiliary information". By
6917 doing things this way a fair degree of compatibility can be
6918 retained: existing certificates can have this information added
6919 using the new 'x509' options.
6921 Current auxiliary information includes an "alias" and some trust
6922 settings. The trust settings will ultimately be used in enhanced
6923 certificate chain verification routines: currently a certificate
6924 can only be trusted if it is self signed and then it is trusted
6928 *) Fix assembler for Alpha (tested only on DEC OSF not Linux or *BSD).
6929 The problem was that one of the replacement routines had not been working
6930 since SSLeay releases. For now the offending routine has been replaced
6931 with non-optimised assembler. Even so, this now gives around 95%
6932 performance improvement for 1024 bit RSA signs.
6935 *) Hack to fix PKCS#7 decryption when used with some unorthodox RC2
6936 handling. Most clients have the effective key size in bits equal to
6937 the key length in bits: so a 40 bit RC2 key uses a 40 bit (5 byte) key.
6938 A few however don't do this and instead use the size of the decrypted key
6939 to determine the RC2 key length and the AlgorithmIdentifier to determine
6940 the effective key length. In this case the effective key length can still
6941 be 40 bits but the key length can be 168 bits for example. This is fixed
6942 by manually forcing an RC2 key into the EVP_PKEY structure because the
6943 EVP code can't currently handle unusual RC2 key sizes: it always assumes
6944 the key length and effective key length are equal.
6947 *) Add a bunch of functions that should simplify the creation of
6948 X509_NAME structures. Now you should be able to do:
6949 X509_NAME_add_entry_by_txt(nm, "CN", MBSTRING_ASC, "Steve", -1, -1, 0);
6950 and have it automatically work out the correct field type and fill in
6951 the structures. The more adventurous can try:
6952 X509_NAME_add_entry_by_txt(nm, field, MBSTRING_UTF8, str, -1, -1, 0);
6953 and it will (hopefully) work out the correct multibyte encoding.
6956 *) Change the 'req' utility to use the new field handling and multibyte
6957 copy routines. Before the DN field creation was handled in an ad hoc
6958 way in req, ca, and x509 which was rather broken and didn't support
6959 BMPStrings or UTF8Strings. Since some software doesn't implement
6960 BMPStrings or UTF8Strings yet, they can be enabled using the config file
6961 using the dirstring_type option. See the new comment in the default
6962 openssl.cnf for more info.
6965 *) Make crypto/rand/md_rand.c more robust:
6966 - Assure unique random numbers after fork().
6967 - Make sure that concurrent threads access the global counter and
6968 md serializably so that we never lose entropy in them
6969 or use exactly the same state in multiple threads.
6970 Access to the large state is not always serializable because
6971 the additional locking could be a performance killer, and
6972 md should be large enough anyway.
6975 *) New file apps/app_rand.c with commonly needed functionality
6976 for handling the random seed file.
6978 Use the random seed file in some applications that previously did not:
6980 dsaparam -genkey (which also ignored its '-rand' option),
6983 x509 (when signing).
6984 Except on systems with /dev/urandom, it is crucial to have a random
6985 seed file at least for key creation, DSA signing, and for DH exchanges;
6986 for RSA signatures we could do without one.
6988 gendh and gendsa (unlike genrsa) used to read only the first byte
6989 of each file listed in the '-rand' option. The function as previously
6990 found in genrsa is now in app_rand.c and is used by all programs
6991 that support '-rand'.
6994 *) In RAND_write_file, use mode 0600 for creating files;
6995 don't just chmod when it may be too late.
6998 *) Report an error from X509_STORE_load_locations
6999 when X509_LOOKUP_load_file or X509_LOOKUP_add_dir failed.
7002 *) New function ASN1_mbstring_copy() this copies a string in either
7003 ASCII, Unicode, Universal (4 bytes per character) or UTF8 format
7004 into an ASN1_STRING type. A mask of permissible types is passed
7005 and it chooses the "minimal" type to use or an error if not type
7009 *) Add function equivalents to the various macros in asn1.h. The old
7010 macros are retained with an M_ prefix. Code inside the library can
7011 use the M_ macros. External code (including the openssl utility)
7012 should *NOT* in order to be "shared library friendly".
7015 *) Add various functions that can check a certificate's extensions
7016 to see if it usable for various purposes such as SSL client,
7017 server or S/MIME and CAs of these types. This is currently
7018 VERY EXPERIMENTAL but will ultimately be used for certificate chain
7019 verification. Also added a -purpose flag to x509 utility to
7020 print out all the purposes.
7023 *) Add a CRYPTO_EX_DATA to X509 certificate structure and associated
7027 *) New X509V3_{X509,CRL,REVOKED}_get_d2i() functions. These will search
7028 for, obtain and decode and extension and obtain its critical flag.
7029 This allows all the necessary extension code to be handled in a
7030 single function call.
7033 *) RC4 tune-up featuring 30-40% performance improvement on most RISC
7034 platforms. See crypto/rc4/rc4_enc.c for further details.
7037 *) New -noout option to asn1parse. This causes no output to be produced
7038 its main use is when combined with -strparse and -out to extract data
7039 from a file (which may not be in ASN.1 format).
7042 *) Fix for pkcs12 program. It was hashing an invalid certificate pointer
7043 when producing the local key id.
7044 [Richard Levitte <levitte@stacken.kth.se>]
7046 *) New option -dhparam in s_server. This allows a DH parameter file to be
7047 stated explicitly. If it is not stated then it tries the first server
7048 certificate file. The previous behaviour hard coded the filename
7052 *) Add -pubin and -pubout options to the rsa and dsa commands. These allow
7053 a public key to be input or output. For example:
7054 openssl rsa -in key.pem -pubout -out pubkey.pem
7055 Also added necessary DSA public key functions to handle this.
7058 *) Fix so PKCS7_dataVerify() doesn't crash if no certificates are contained
7059 in the message. This was handled by allowing
7060 X509_find_by_issuer_and_serial() to tolerate a NULL passed to it.
7061 [Steve Henson, reported by Sampo Kellomaki <sampo@mail.neuronio.pt>]
7063 *) Fix for bug in d2i_ASN1_bytes(): other ASN1 functions add an extra null
7064 to the end of the strings whereas this didn't. This would cause problems
7065 if strings read with d2i_ASN1_bytes() were later modified.
7066 [Steve Henson, reported by Arne Ansper <arne@ats.cyber.ee>]
7068 *) Fix for base64 decode bug. When a base64 bio reads only one line of
7069 data and it contains EOF it will end up returning an error. This is
7070 caused by input 46 bytes long. The cause is due to the way base64
7071 BIOs find the start of base64 encoded data. They do this by trying a
7072 trial decode on each line until they find one that works. When they
7073 do a flag is set and it starts again knowing it can pass all the
7074 data directly through the decoder. Unfortunately it doesn't reset
7075 the context it uses. This means that if EOF is reached an attempt
7076 is made to pass two EOFs through the context and this causes the
7077 resulting error. This can also cause other problems as well. As is
7078 usual with these problems it takes *ages* to find and the fix is
7079 trivial: move one line.
7080 [Steve Henson, reported by ian@uns.ns.ac.yu (Ivan Nejgebauer) ]
7082 *) Ugly workaround to get s_client and s_server working under Windows. The
7083 old code wouldn't work because it needed to select() on sockets and the
7084 tty (for keypresses and to see if data could be written). Win32 only
7085 supports select() on sockets so we select() with a 1s timeout on the
7086 sockets and then see if any characters are waiting to be read, if none
7087 are present then we retry, we also assume we can always write data to
7088 the tty. This isn't nice because the code then blocks until we've
7089 received a complete line of data and it is effectively polling the
7090 keyboard at 1s intervals: however it's quite a bit better than not
7091 working at all :-) A dedicated Windows application might handle this
7092 with an event loop for example.
7095 *) Enhance RSA_METHOD structure. Now there are two extra methods, rsa_sign
7096 and rsa_verify. When the RSA_FLAGS_SIGN_VER option is set these functions
7097 will be called when RSA_sign() and RSA_verify() are used. This is useful
7098 if rsa_pub_dec() and rsa_priv_enc() equivalents are not available.
7099 For this to work properly RSA_public_decrypt() and RSA_private_encrypt()
7100 should *not* be used: RSA_sign() and RSA_verify() must be used instead.
7101 This necessitated the support of an extra signature type NID_md5_sha1
7102 for SSL signatures and modifications to the SSL library to use it instead
7103 of calling RSA_public_decrypt() and RSA_private_encrypt().
7106 *) Add new -verify -CAfile and -CApath options to the crl program, these
7107 will lookup a CRL issuers certificate and verify the signature in a
7108 similar way to the verify program. Tidy up the crl program so it
7109 no longer accesses structures directly. Make the ASN1 CRL parsing a bit
7110 less strict. It will now permit CRL extensions even if it is not
7111 a V2 CRL: this will allow it to tolerate some broken CRLs.
7114 *) Initialize all non-automatic variables each time one of the openssl
7115 sub-programs is started (this is necessary as they may be started
7116 multiple times from the "OpenSSL>" prompt).
7117 [Lennart Bang, Bodo Moeller]
7119 *) Preliminary compilation option RSA_NULL which disables RSA crypto without
7120 removing all other RSA functionality (this is what NO_RSA does). This
7121 is so (for example) those in the US can disable those operations covered
7122 by the RSA patent while allowing storage and parsing of RSA keys and RSA
7126 *) Non-copying interface to BIO pairs.
7127 (still largely untested)
7130 *) New function ANS1_tag2str() to convert an ASN1 tag to a descriptive
7131 ASCII string. This was handled independently in various places before.
7134 *) New functions UTF8_getc() and UTF8_putc() that parse and generate
7135 UTF8 strings a character at a time.
7138 *) Use client_version from client hello to select the protocol
7139 (s23_srvr.c) and for RSA client key exchange verification
7140 (s3_srvr.c), as required by the SSL 3.0/TLS 1.0 specifications.
7143 *) Add various utility functions to handle SPKACs, these were previously
7144 handled by poking round in the structure internals. Added new function
7145 NETSCAPE_SPKI_print() to print out SPKAC and a new utility 'spkac' to
7146 print, verify and generate SPKACs. Based on an original idea from
7147 Massimiliano Pala <madwolf@comune.modena.it> but extensively modified.
7150 *) RIPEMD160 is operational on all platforms and is back in 'make test'.
7153 *) Allow the config file extension section to be overwritten on the
7154 command line. Based on an original idea from Massimiliano Pala
7155 <madwolf@comune.modena.it>. The new option is called -extensions
7156 and can be applied to ca, req and x509. Also -reqexts to override
7157 the request extensions in req and -crlexts to override the crl extensions
7161 *) Add new feature to the SPKAC handling in ca. Now you can include
7162 the same field multiple times by preceding it by "XXXX." for example:
7165 this is the same syntax as used in the req config file.
7168 *) Allow certificate extensions to be added to certificate requests. These
7169 are specified in a 'req_extensions' option of the req section of the
7170 config file. They can be printed out with the -text option to req but
7171 are otherwise ignored at present.
7174 *) Fix a horrible bug in enc_read() in crypto/evp/bio_enc.c: if the first
7175 data read consists of only the final block it would not decrypted because
7176 EVP_CipherUpdate() would correctly report zero bytes had been decrypted.
7177 A misplaced 'break' also meant the decrypted final block might not be
7178 copied until the next read.
7181 *) Initial support for DH_METHOD. Again based on RSA_METHOD. Also added
7182 a few extra parameters to the DH structure: these will be useful if
7183 for example we want the value of 'q' or implement X9.42 DH.
7186 *) Initial support for DSA_METHOD. This is based on the RSA_METHOD and
7187 provides hooks that allow the default DSA functions or functions on a
7188 "per key" basis to be replaced. This allows hardware acceleration and
7189 hardware key storage to be handled without major modification to the
7190 library. Also added low level modexp hooks and CRYPTO_EX structure and
7191 associated functions.
7194 *) Add a new flag to memory BIOs, BIO_FLAG_MEM_RDONLY. This marks the BIO
7195 as "read only": it can't be written to and the buffer it points to will
7196 not be freed. Reading from a read only BIO is much more efficient than
7197 a normal memory BIO. This was added because there are several times when
7198 an area of memory needs to be read from a BIO. The previous method was
7199 to create a memory BIO and write the data to it, this results in two
7200 copies of the data and an O(n^2) reading algorithm. There is a new
7201 function BIO_new_mem_buf() which creates a read only memory BIO from
7202 an area of memory. Also modified the PKCS#7 routines to use read only
7206 *) Bugfix: ssl23_get_client_hello did not work properly when called in
7207 state SSL23_ST_SR_CLNT_HELLO_B, i.e. when the first 7 bytes of
7208 a SSLv2-compatible client hello for SSLv3 or TLSv1 could be read,
7209 but a retry condition occured while trying to read the rest.
7212 *) The PKCS7_ENC_CONTENT_new() function was setting the content type as
7213 NID_pkcs7_encrypted by default: this was wrong since this should almost
7214 always be NID_pkcs7_data. Also modified the PKCS7_set_type() to handle
7215 the encrypted data type: this is a more sensible place to put it and it
7216 allows the PKCS#12 code to be tidied up that duplicated this
7220 *) Changed obj_dat.pl script so it takes its input and output files on
7221 the command line. This should avoid shell escape redirection problems
7225 *) Initial support for certificate extension requests, these are included
7226 in things like Xenroll certificate requests. Included functions to allow
7227 extensions to be obtained and added.
7230 *) -crlf option to s_client and s_server for sending newlines as
7231 CRLF (as required by many protocols).
7234 Changes between 0.9.3a and 0.9.4 [09 Aug 1999]
7236 *) Install libRSAglue.a when OpenSSL is built with RSAref.
7237 [Ralf S. Engelschall]
7239 *) A few more ``#ifndef NO_FP_API / #endif'' pairs for consistency.
7240 [Andrija Antonijevic <TheAntony2@bigfoot.com>]
7242 *) Fix -startdate and -enddate (which was missing) arguments to 'ca'
7246 *) New function DSA_dup_DH, which duplicates DSA parameters/keys as
7247 DH parameters/keys (q is lost during that conversion, but the resulting
7248 DH parameters contain its length).
7250 For 1024-bit p, DSA_generate_parameters followed by DSA_dup_DH is
7251 much faster than DH_generate_parameters (which creates parameters
7252 where p = 2*q + 1), and also the smaller q makes DH computations
7253 much more efficient (160-bit exponentiation instead of 1024-bit
7254 exponentiation); so this provides a convenient way to support DHE
7255 ciphersuites in SSL/TLS servers (see ssl/ssltest.c). It is of
7256 utter importance to use
7257 SSL_CTX_set_options(s_ctx, SSL_OP_SINGLE_DH_USE);
7259 SSL_set_options(s_ctx, SSL_OP_SINGLE_DH_USE);
7260 when such DH parameters are used, because otherwise small subgroup
7261 attacks may become possible!
7264 *) Avoid memory leak in i2d_DHparams.
7267 *) Allow the -k option to be used more than once in the enc program:
7268 this allows the same encrypted message to be read by multiple recipients.
7271 *) New function OBJ_obj2txt(buf, buf_len, a, no_name), this converts
7272 an ASN1_OBJECT to a text string. If the "no_name" parameter is set then
7273 it will always use the numerical form of the OID, even if it has a short
7277 *) Added an extra RSA flag: RSA_FLAG_EXT_PKEY. Previously the rsa_mod_exp
7278 method only got called if p,q,dmp1,dmq1,iqmp components were present,
7279 otherwise bn_mod_exp was called. In the case of hardware keys for example
7280 no private key components need be present and it might store extra data
7281 in the RSA structure, which cannot be accessed from bn_mod_exp.
7282 By setting RSA_FLAG_EXT_PKEY rsa_mod_exp will always be called for
7283 private key operations.
7286 *) Added support for SPARC Linux.
7289 *) pem_password_cb function type incompatibly changed from
7290 typedef int pem_password_cb(char *buf, int size, int rwflag);
7292 ....(char *buf, int size, int rwflag, void *userdata);
7293 so that applications can pass data to their callbacks:
7294 The PEM[_ASN1]_{read,write}... functions and macros now take an
7295 additional void * argument, which is just handed through whenever
7296 the password callback is called.
7297 [Damien Miller <dmiller@ilogic.com.au>; tiny changes by Bodo Moeller]
7299 New function SSL_CTX_set_default_passwd_cb_userdata.
7301 Compatibility note: As many C implementations push function arguments
7302 onto the stack in reverse order, the new library version is likely to
7303 interoperate with programs that have been compiled with the old
7304 pem_password_cb definition (PEM_whatever takes some data that
7305 happens to be on the stack as its last argument, and the callback
7306 just ignores this garbage); but there is no guarantee whatsoever that
7309 *) The -DPLATFORM="\"$(PLATFORM)\"" definition and the similar -DCFLAGS=...
7310 (both in crypto/Makefile.ssl for use by crypto/cversion.c) caused
7311 problems not only on Windows, but also on some Unix platforms.
7312 To avoid problematic command lines, these definitions are now in an
7313 auto-generated file crypto/buildinf.h (created by crypto/Makefile.ssl
7314 for standard "make" builds, by util/mk1mf.pl for "mk1mf" builds).
7317 *) MIPS III/IV assembler module is reimplemented.
7320 *) More DES library cleanups: remove references to srand/rand and
7321 delete an unused file.
7324 *) Add support for the the free Netwide assembler (NASM) under Win32,
7325 since not many people have MASM (ml) and it can be hard to obtain.
7326 This is currently experimental but it seems to work OK and pass all
7327 the tests. Check out INSTALL.W32 for info.
7330 *) Fix memory leaks in s3_clnt.c: All non-anonymous SSL3/TLS1 connections
7331 without temporary keys kept an extra copy of the server key,
7332 and connections with temporary keys did not free everything in case
7336 *) New function RSA_check_key and new openssl rsa option -check
7337 for verifying the consistency of RSA keys.
7338 [Ulf Moeller, Bodo Moeller]
7340 *) Various changes to make Win32 compile work:
7341 1. Casts to avoid "loss of data" warnings in p5_crpt2.c
7342 2. Change unsigned int to int in b_dump.c to avoid "signed/unsigned
7343 comparison" warnings.
7344 3. Add sk_<TYPE>_sort to DEF file generator and do make update.
7347 *) Add a debugging option to PKCS#5 v2 key generation function: when
7348 you #define DEBUG_PKCS5V2 passwords, salts, iteration counts and
7349 derived keys are printed to stderr.
7352 *) Copy the flags in ASN1_STRING_dup().
7353 [Roman E. Pavlov <pre@mo.msk.ru>]
7355 *) The x509 application mishandled signing requests containing DSA
7356 keys when the signing key was also DSA and the parameters didn't match.
7358 It was supposed to omit the parameters when they matched the signing key:
7359 the verifying software was then supposed to automatically use the CA's
7360 parameters if they were absent from the end user certificate.
7362 Omitting parameters is no longer recommended. The test was also
7363 the wrong way round! This was probably due to unusual behaviour in
7364 EVP_cmp_parameters() which returns 1 if the parameters match.
7365 This meant that parameters were omitted when they *didn't* match and
7366 the certificate was useless. Certificates signed with 'ca' didn't have
7368 [Steve Henson, reported by Doug Erickson <Doug.Erickson@Part.NET>]
7370 *) Memory leak checking (-DCRYPTO_MDEBUG) had some problems.
7371 The interface is as follows:
7372 Applications can use
7373 CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_ON) aka MemCheck_start(),
7374 CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_OFF) aka MemCheck_stop();
7375 "off" is now the default.
7376 The library internally uses
7377 CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_DISABLE) aka MemCheck_off(),
7378 CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_ENABLE) aka MemCheck_on()
7379 to disable memory-checking temporarily.
7381 Some inconsistent states that previously were possible (and were
7382 even the default) are now avoided.
7384 -DCRYPTO_MDEBUG_TIME is new and additionally stores the current time
7385 with each memory chunk allocated; this is occasionally more helpful
7386 than just having a counter.
7388 -DCRYPTO_MDEBUG_THREAD is also new and adds the thread ID.
7390 -DCRYPTO_MDEBUG_ALL enables all of the above, plus any future
7394 *) Introduce "mode" for SSL structures (with defaults in SSL_CTX),
7395 which largely parallels "options", but is for changing API behaviour,
7396 whereas "options" are about protocol behaviour.
7397 Initial "mode" flags are:
7399 SSL_MODE_ENABLE_PARTIAL_WRITE Allow SSL_write to report success when
7400 a single record has been written.
7401 SSL_MODE_ACCEPT_MOVING_WRITE_BUFFER Don't insist that SSL_write
7402 retries use the same buffer location.
7403 (But all of the contents must be
7407 *) Bugfix: SSL_set_options ignored its parameter, only SSL_CTX_set_options
7410 *) Fix problems with no-hmac etc.
7411 [Ulf Möller, pointed out by Brian Wellington <bwelling@tislabs.com>]
7413 *) New functions RSA_get_default_method(), RSA_set_method() and
7414 RSA_get_method(). These allows replacement of RSA_METHODs without having
7415 to mess around with the internals of an RSA structure.
7418 *) Fix memory leaks in DSA_do_sign and DSA_is_prime.
7419 Also really enable memory leak checks in openssl.c and in some
7421 [Chad C. Mulligan, Bodo Moeller]
7423 *) Fix a bug in d2i_ASN1_INTEGER() and i2d_ASN1_INTEGER() which can mess
7424 up the length of negative integers. This has now been simplified to just
7425 store the length when it is first determined and use it later, rather
7426 than trying to keep track of where data is copied and updating it to
7428 [Steve Henson, reported by Brien Wheeler
7429 <bwheeler@authentica-security.com>]
7431 *) Add a new function PKCS7_signatureVerify. This allows the verification
7432 of a PKCS#7 signature but with the signing certificate passed to the
7433 function itself. This contrasts with PKCS7_dataVerify which assumes the
7434 certificate is present in the PKCS#7 structure. This isn't always the
7435 case: certificates can be omitted from a PKCS#7 structure and be
7436 distributed by "out of band" means (such as a certificate database).
7439 *) Complete the PEM_* macros with DECLARE_PEM versions to replace the
7440 function prototypes in pem.h, also change util/mkdef.pl to add the
7441 necessary function names.
7444 *) mk1mf.pl (used by Windows builds) did not properly read the
7445 options set by Configure in the top level Makefile, and Configure
7446 was not even able to write more than one option correctly.
7447 Fixed, now "no-idea no-rc5 -DCRYPTO_MDEBUG" etc. works as intended.
7450 *) New functions CONF_load_bio() and CONF_load_fp() to allow a config
7451 file to be loaded from a BIO or FILE pointer. The BIO version will
7452 for example allow memory BIOs to contain config info.
7455 *) New function "CRYPTO_num_locks" that returns CRYPTO_NUM_LOCKS.
7456 Whoever hopes to achieve shared-library compatibility across versions
7457 must use this, not the compile-time macro.
7458 (Exercise 0.9.4: Which is the minimum library version required by
7460 Note: All this applies only to multi-threaded programs, others don't
7464 *) Add missing case to s3_clnt.c state machine -- one of the new SSL tests
7465 through a BIO pair triggered the default case, i.e.
7466 SSLerr(...,SSL_R_UNKNOWN_STATE).
7469 *) New "BIO pair" concept (crypto/bio/bss_bio.c) so that applications
7470 can use the SSL library even if none of the specific BIOs is
7474 *) Fix a bug in i2d_DSAPublicKey() which meant it returned the wrong value
7475 for the encoded length.
7476 [Jeon KyoungHo <khjeon@sds.samsung.co.kr>]
7478 *) Add initial documentation of the X509V3 functions.
7481 *) Add a new pair of functions PEM_write_PKCS8PrivateKey() and
7482 PEM_write_bio_PKCS8PrivateKey() that are equivalent to
7483 PEM_write_PrivateKey() and PEM_write_bio_PrivateKey() but use the more
7484 secure PKCS#8 private key format with a high iteration count.
7487 *) Fix determination of Perl interpreter: A perl or perl5
7488 _directory_ in $PATH was also accepted as the interpreter.
7489 [Ralf S. Engelschall]
7491 *) Fix demos/sign/sign.c: well there wasn't anything strictly speaking
7492 wrong with it but it was very old and did things like calling
7493 PEM_ASN1_read() directly and used MD5 for the hash not to mention some
7497 *) Fix demos/selfsign.c: it used obsolete and deleted functions, changed
7498 to use the new extension code.
7501 *) Implement the PEM_read/PEM_write functions in crypto/pem/pem_all.c
7502 with macros. This should make it easier to change their form, add extra
7503 arguments etc. Fix a few PEM prototypes which didn't have cipher as a
7507 *) Add to configuration table a new entry that can specify an alternative
7508 name for unistd.h (for pre-POSIX systems); we need this for NeXTstep,
7509 according to Mark Crispin <MRC@Panda.COM>.
7513 *) DES CBC did not update the IV. Weird.
7516 des_cbc_encrypt does not update the IV, but des_ncbc_encrypt does.
7517 Changing the behaviour of the former might break existing programs --
7518 where IV updating is needed, des_ncbc_encrypt can be used.
7521 *) When bntest is run from "make test" it drives bc to check its
7522 calculations, as well as internally checking them. If an internal check
7523 fails, it needs to cause bc to give a non-zero result or make test carries
7524 on without noticing the failure. Fixed.
7527 *) DES library cleanups.
7530 *) Add support for PKCS#5 v2.0 PBE algorithms. This will permit PKCS#8 to be
7531 used with any cipher unlike PKCS#5 v1.5 which can at most handle 64 bit
7532 ciphers. NOTE: although the key derivation function has been verified
7533 against some published test vectors it has not been extensively tested
7534 yet. Added a -v2 "cipher" option to pkcs8 application to allow the use
7538 *) Instead of "mkdir -p", which is not fully portable, use new
7539 Perl script "util/mkdir-p.pl".
7542 *) Rewrite the way password based encryption (PBE) is handled. It used to
7543 assume that the ASN1 AlgorithmIdentifier parameter was a PBEParameter
7544 structure. This was true for the PKCS#5 v1.5 and PKCS#12 PBE algorithms
7545 but doesn't apply to PKCS#5 v2.0 where it can be something else. Now
7546 the 'parameter' field of the AlgorithmIdentifier is passed to the
7547 underlying key generation function so it must do its own ASN1 parsing.
7548 This has also changed the EVP_PBE_CipherInit() function which now has a
7549 'parameter' argument instead of literal salt and iteration count values
7550 and the function EVP_PBE_ALGOR_CipherInit() has been deleted.
7553 *) Support for PKCS#5 v1.5 compatible password based encryption algorithms
7554 and PKCS#8 functionality. New 'pkcs8' application linked to openssl.
7555 Needed to change the PEM_STRING_EVP_PKEY value which was just "PRIVATE
7556 KEY" because this clashed with PKCS#8 unencrypted string. Since this
7557 value was just used as a "magic string" and not used directly its
7558 value doesn't matter.
7561 *) Introduce some semblance of const correctness to BN. Shame C doesn't
7565 *) "linux-sparc64" configuration (ultrapenguin).
7566 [Ray Miller <ray.miller@oucs.ox.ac.uk>]
7567 "linux-sparc" configuration.
7568 [Christian Forster <fo@hawo.stw.uni-erlangen.de>]
7570 *) config now generates no-xxx options for missing ciphers.
7573 *) Support the EBCDIC character set (work in progress).
7574 File ebcdic.c not yet included because it has a different license.
7575 [Martin Kraemer <Martin.Kraemer@MchP.Siemens.De>]
7577 *) Support BS2000/OSD-POSIX.
7578 [Martin Kraemer <Martin.Kraemer@MchP.Siemens.De>]
7580 *) Make callbacks for key generation use void * instead of char *.
7583 *) Make S/MIME samples compile (not yet tested).
7586 *) Additional typesafe stacks.
7589 *) New configuration variants "bsdi-elf-gcc" (BSD/OS 4.x).
7593 Changes between 0.9.3 and 0.9.3a [29 May 1999]
7595 *) New configuration variant "sco5-gcc".
7597 *) Updated some demos.
7598 [Sean O Riordain, Wade Scholine]
7600 *) Add missing BIO_free at exit of pkcs12 application.
7603 *) Fix memory leak in conf.c.
7606 *) Updates for Win32 to assembler version of MD5.
7609 *) Set #! path to perl in apps/der_chop to where we found it
7610 instead of using a fixed path.
7613 *) SHA library changes for irix64-mips4-cc.
7616 *) Improvements for VMS support.
7620 Changes between 0.9.2b and 0.9.3 [24 May 1999]
7622 *) Bignum library bug fix. IRIX 6 passes "make test" now!
7623 This also avoids the problems with SC4.2 and unpatched SC5.
7624 [Andy Polyakov <appro@fy.chalmers.se>]
7626 *) New functions sk_num, sk_value and sk_set to replace the previous macros.
7627 These are required because of the typesafe stack would otherwise break
7628 existing code. If old code used a structure member which used to be STACK
7629 and is now STACK_OF (for example cert in a PKCS7_SIGNED structure) with
7630 sk_num or sk_value it would produce an error because the num, data members
7631 are not present in STACK_OF. Now it just produces a warning. sk_set
7632 replaces the old method of assigning a value to sk_value
7633 (e.g. sk_value(x, i) = y) which the library used in a few cases. Any code
7634 that does this will no longer work (and should use sk_set instead) but
7635 this could be regarded as a "questionable" behaviour anyway.
7638 *) Fix most of the other PKCS#7 bugs. The "experimental" code can now
7639 correctly handle encrypted S/MIME data.
7642 *) Change type of various DES function arguments from des_cblock
7643 (which means, in function argument declarations, pointer to char)
7644 to des_cblock * (meaning pointer to array with 8 char elements),
7645 which allows the compiler to do more typechecking; it was like
7646 that back in SSLeay, but with lots of ugly casts.
7648 Introduce new type const_des_cblock.
7651 *) Reorganise the PKCS#7 library and get rid of some of the more obvious
7652 problems: find RecipientInfo structure that matches recipient certificate
7653 and initialise the ASN1 structures properly based on passed cipher.
7656 *) Belatedly make the BN tests actually check the results.
7659 *) Fix the encoding and decoding of negative ASN1 INTEGERS and conversion
7660 to and from BNs: it was completely broken. New compilation option
7661 NEG_PUBKEY_BUG to allow for some broken certificates that encode public
7662 key elements as negative integers.
7665 *) Reorganize and speed up MD5.
7666 [Andy Polyakov <appro@fy.chalmers.se>]
7669 [Richard Levitte <richard@levitte.org>]
7671 *) New option -out to asn1parse to allow the parsed structure to be
7672 output to a file. This is most useful when combined with the -strparse
7673 option to examine the output of things like OCTET STRINGS.
7676 *) Make SSL library a little more fool-proof by not requiring any longer
7677 that SSL_set_{accept,connect}_state be called before
7678 SSL_{accept,connect} may be used (SSL_set_..._state is omitted
7679 in many applications because usually everything *appeared* to work as
7680 intended anyway -- now it really works as intended).
7683 *) Move openssl.cnf out of lib/.
7686 *) Fix various things to let OpenSSL even pass ``egcc -pipe -O2 -Wall
7687 -Wshadow -Wpointer-arith -Wcast-align -Wmissing-prototypes
7688 -Wmissing-declarations -Wnested-externs -Winline'' with EGCS 1.1.2+
7689 [Ralf S. Engelschall]
7691 *) Various fixes to the EVP and PKCS#7 code. It may now be able to
7692 handle PKCS#7 enveloped data properly.
7693 [Sebastian Akerman <sak@parallelconsulting.com>, modified by Steve]
7695 *) Create a duplicate of the SSL_CTX's CERT in SSL_new instead of
7696 copying pointers. The cert_st handling is changed by this in
7697 various ways (and thus what used to be known as ctx->default_cert
7698 is now called ctx->cert, since we don't resort to s->ctx->[default_]cert
7699 any longer when s->cert does not give us what we need).
7700 ssl_cert_instantiate becomes obsolete by this change.
7701 As soon as we've got the new code right (possibly it already is?),
7702 we have solved a couple of bugs of the earlier code where s->cert
7703 was used as if it could not have been shared with other SSL structures.
7705 Note that using the SSL API in certain dirty ways now will result
7706 in different behaviour than observed with earlier library versions:
7707 Changing settings for an SSL_CTX *ctx after having done s = SSL_new(ctx)
7708 does not influence s as it used to.
7710 In order to clean up things more thoroughly, inside SSL_SESSION
7711 we don't use CERT any longer, but a new structure SESS_CERT
7712 that holds per-session data (if available); currently, this is
7713 the peer's certificate chain and, for clients, the server's certificate
7714 and temporary key. CERT holds only those values that can have
7715 meaningful defaults in an SSL_CTX.
7718 *) New function X509V3_EXT_i2d() to create an X509_EXTENSION structure
7719 from the internal representation. Various PKCS#7 fixes: remove some
7720 evil casts and set the enc_dig_alg field properly based on the signing
7724 *) Allow PKCS#12 password to be set from the command line or the
7725 environment. Let 'ca' get its config file name from the environment
7726 variables "OPENSSL_CONF" or "SSLEAY_CONF" (for consistency with 'req'
7730 *) Allow certificate policies extension to use an IA5STRING for the
7731 organization field. This is contrary to the PKIX definition but
7732 VeriSign uses it and IE5 only recognises this form. Document 'x509'
7736 *) Add PEDANTIC compiler flag to allow compilation with gcc -pedantic,
7737 without disallowing inline assembler and the like for non-pedantic builds.
7740 *) Support Borland C++ builder.
7741 [Janez Jere <jj@void.si>, modified by Ulf Möller]
7746 *) SHA-1 cleanups and performance enhancements.
7747 [Andy Polyakov <appro@fy.chalmers.se>]
7749 *) Sparc v8plus assembler for the bignum library.
7750 [Andy Polyakov <appro@fy.chalmers.se>]
7752 *) Accept any -xxx and +xxx compiler options in Configure.
7755 *) Update HPUX configuration.
7758 *) Add missing sk_<type>_unshift() function to safestack.h
7759 [Ralf S. Engelschall]
7761 *) New function SSL_CTX_use_certificate_chain_file that sets the
7762 "extra_cert"s in addition to the certificate. (This makes sense
7763 only for "PEM" format files, as chains as a whole are not
7767 *) Support verify_depth from the SSL API.
7768 x509_vfy.c had what can be considered an off-by-one-error:
7769 Its depth (which was not part of the external interface)
7770 was actually counting the number of certificates in a chain;
7771 now it really counts the depth.
7774 *) Bugfix in crypto/x509/x509_cmp.c: The SSLerr macro was used
7775 instead of X509err, which often resulted in confusing error
7776 messages since the error codes are not globally unique
7777 (e.g. an alleged error in ssl3_accept when a certificate
7778 didn't match the private key).
7780 *) New function SSL_CTX_set_session_id_context that allows to set a default
7781 value (so that you don't need SSL_set_session_id_context for each
7782 connection using the SSL_CTX).
7785 *) OAEP decoding bug fix.
7788 *) Support INSTALL_PREFIX for package builders, as proposed by
7792 *) New Configure options "threads" and "no-threads". For systems
7793 where the proper compiler options are known (currently Solaris
7794 and Linux), "threads" is the default.
7797 *) New script util/mklink.pl as a faster substitute for util/mklink.sh.
7800 *) Install various scripts to $(OPENSSLDIR)/misc, not to
7801 $(INSTALLTOP)/bin -- they shouldn't clutter directories
7802 such as /usr/local/bin.
7805 *) "make linux-shared" to build shared libraries.
7806 [Niels Poppe <niels@netbox.org>]
7808 *) New Configure option no-<cipher> (rsa, idea, rc5, ...).
7811 *) Add the PKCS#12 API documentation to openssl.txt. Preliminary support for
7812 extension adding in x509 utility.
7815 *) Remove NOPROTO sections and error code comments.
7818 *) Partial rewrite of the DEF file generator to now parse the ANSI
7822 *) New Configure options --prefix=DIR and --openssldir=DIR.
7825 *) Complete rewrite of the error code script(s). It is all now handled
7826 by one script at the top level which handles error code gathering,
7827 header rewriting and C source file generation. It should be much better
7828 than the old method: it now uses a modified version of Ulf's parser to
7829 read the ANSI prototypes in all header files (thus the old K&R definitions
7830 aren't needed for error creation any more) and do a better job of
7831 translating function codes into names. The old 'ASN1 error code imbedded
7832 in a comment' is no longer necessary and it doesn't use .err files which
7833 have now been deleted. Also the error code call doesn't have to appear all
7834 on one line (which resulted in some large lines...).
7837 *) Change #include filenames from <foo.h> to <openssl/foo.h>.
7840 *) Change behaviour of ssl2_read when facing length-0 packets: Don't return
7841 0 (which usually indicates a closed connection), but continue reading.
7844 *) Fix some race conditions.
7847 *) Add support for CRL distribution points extension. Add Certificate
7848 Policies and CRL distribution points documentation.
7851 *) Move the autogenerated header file parts to crypto/opensslconf.h.
7854 *) Fix new 56-bit DES export ciphersuites: they were using 7 bytes instead of
7855 8 of keying material. Merlin has also confirmed interop with this fix
7856 between OpenSSL and Baltimore C/SSL 2.0 and J/SSL 2.0.
7857 [Merlin Hughes <merlin@baltimore.ie>]
7859 *) Fix lots of warnings.
7860 [Richard Levitte <levitte@stacken.kth.se>]
7862 *) In add_cert_dir() in crypto/x509/by_dir.c, break out of the loop if
7863 the directory spec didn't end with a LIST_SEPARATOR_CHAR.
7864 [Richard Levitte <levitte@stacken.kth.se>]
7866 *) Fix problems with sizeof(long) == 8.
7867 [Andy Polyakov <appro@fy.chalmers.se>]
7869 *) Change functions to ANSI C.
7872 *) Fix typos in error codes.
7873 [Martin Kraemer <Martin.Kraemer@MchP.Siemens.De>, Ulf Möller]
7875 *) Remove defunct assembler files from Configure.
7878 *) SPARC v8 assembler BIGNUM implementation.
7879 [Andy Polyakov <appro@fy.chalmers.se>]
7881 *) Support for Certificate Policies extension: both print and set.
7882 Various additions to support the r2i method this uses.
7885 *) A lot of constification, and fix a bug in X509_NAME_oneline() that could
7886 return a const string when you are expecting an allocated buffer.
7889 *) Add support for ASN1 types UTF8String and VISIBLESTRING, also the CHOICE
7890 types DirectoryString and DisplayText.
7893 *) Add code to allow r2i extensions to access the configuration database,
7894 add an LHASH database driver and add several ctx helper functions.
7897 *) Fix an evil bug in bn_expand2() which caused various BN functions to
7898 fail when they extended the size of a BIGNUM.
7901 *) Various utility functions to handle SXNet extension. Modify mkdef.pl to
7902 support typesafe stack.
7905 *) Fix typo in SSL_[gs]et_options().
7906 [Nils Frostberg <nils@medcom.se>]
7908 *) Delete various functions and files that belonged to the (now obsolete)
7909 old X509V3 handling code.
7912 *) New Configure option "rsaref".
7915 *) Don't auto-generate pem.h.
7918 *) Introduce type-safe ASN.1 SETs.
7921 *) Convert various additional casted stacks to type-safe STACK_OF() variants.
7922 [Ben Laurie, Ralf S. Engelschall, Steve Henson]
7924 *) Introduce type-safe STACKs. This will almost certainly break lots of code
7925 that links with OpenSSL (well at least cause lots of warnings), but fear
7926 not: the conversion is trivial, and it eliminates loads of evil casts. A
7927 few STACKed things have been converted already. Feel free to convert more.
7928 In the fullness of time, I'll do away with the STACK type altogether.
7931 *) Add `openssl ca -revoke <certfile>' facility which revokes a certificate
7932 specified in <certfile> by updating the entry in the index.txt file.
7933 This way one no longer has to edit the index.txt file manually for
7934 revoking a certificate. The -revoke option does the gory details now.
7935 [Massimiliano Pala <madwolf@openca.org>, Ralf S. Engelschall]
7937 *) Fix `openssl crl -noout -text' combination where `-noout' killed the
7938 `-text' option at all and this way the `-noout -text' combination was
7939 inconsistent in `openssl crl' with the friends in `openssl x509|rsa|dsa'.
7940 [Ralf S. Engelschall]
7942 *) Make sure a corresponding plain text error message exists for the
7943 X509_V_ERR_CERT_REVOKED/23 error number which can occur when a
7944 verify callback function determined that a certificate was revoked.
7945 [Ralf S. Engelschall]
7947 *) Bugfix: In test/testenc, don't test "openssl <cipher>" for
7948 ciphers that were excluded, e.g. by -DNO_IDEA. Also, test
7949 all available cipers including rc5, which was forgotten until now.
7950 In order to let the testing shell script know which algorithms
7951 are available, a new (up to now undocumented) command
7952 "openssl list-cipher-commands" is used.
7955 *) Bugfix: s_client occasionally would sleep in select() when
7956 it should have checked SSL_pending() first.
7959 *) New functions DSA_do_sign and DSA_do_verify to provide access to
7960 the raw DSA values prior to ASN.1 encoding.
7963 *) Tweaks to Configure
7964 [Niels Poppe <niels@netbox.org>]
7966 *) Add support for PKCS#5 v2.0 ASN1 PBES2 structures. No other support,
7970 *) New variables $(RANLIB) and $(PERL) in the Makefiles.
7973 *) New config option to avoid instructions that are illegal on the 80386.
7974 The default code is faster, but requires at least a 486.
7977 *) Got rid of old SSL2_CLIENT_VERSION (inconsistently used) and
7978 SSL2_SERVER_VERSION (not used at all) macros, which are now the
7979 same as SSL2_VERSION anyway.
7982 *) New "-showcerts" option for s_client.
7985 *) Still more PKCS#12 integration. Add pkcs12 application to openssl
7986 application. Various cleanups and fixes.
7989 *) More PKCS#12 integration. Add new pkcs12 directory with Makefile.ssl and
7990 modify error routines to work internally. Add error codes and PBE init
7991 to library startup routines.
7994 *) Further PKCS#12 integration. Added password based encryption, PKCS#8 and
7995 packing functions to asn1 and evp. Changed function names and error
7996 codes along the way.
7999 *) PKCS12 integration: and so it begins... First of several patches to
8000 slowly integrate PKCS#12 functionality into OpenSSL. Add PKCS#12
8001 objects to objects.h
8004 *) Add a new 'indent' option to some X509V3 extension code. Initial ASN1
8005 and display support for Thawte strong extranet extension.
8008 *) Add LinuxPPC support.
8009 [Jeff Dubrule <igor@pobox.org>]
8011 *) Get rid of redundant BN file bn_mulw.c, and rename bn_div64 to
8012 bn_div_words in alpha.s.
8013 [Hannes Reinecke <H.Reinecke@hw.ac.uk> and Ben Laurie]
8015 *) Make sure the RSA OAEP test is skipped under -DRSAref because
8016 OAEP isn't supported when OpenSSL is built with RSAref.
8017 [Ulf Moeller <ulf@fitug.de>]
8019 *) Move definitions of IS_SET/IS_SEQUENCE inside crypto/asn1/asn1.h
8020 so they no longer are missing under -DNOPROTO.
8021 [Soren S. Jorvang <soren@t.dk>]
8024 Changes between 0.9.1c and 0.9.2b [22 Mar 1999]
8026 *) Make SSL_get_peer_cert_chain() work in servers. Unfortunately, it still
8027 doesn't work when the session is reused. Coming soon!
8030 *) Fix a security hole, that allows sessions to be reused in the wrong
8031 context thus bypassing client cert protection! All software that uses
8032 client certs and session caches in multiple contexts NEEDS PATCHING to
8033 allow session reuse! A fuller solution is in the works.
8034 [Ben Laurie, problem pointed out by Holger Reif, Bodo Moeller (and ???)]
8036 *) Some more source tree cleanups (removed obsolete files
8037 crypto/bf/asm/bf586.pl, test/test.txt and crypto/sha/asm/f.s; changed
8038 permission on "config" script to be executable) and a fix for the INSTALL
8040 [Ulf Moeller <ulf@fitug.de>]
8042 *) Remove some legacy and erroneous uses of malloc, free instead of
8044 [Lennart Bang <lob@netstream.se>, with minor changes by Steve]
8046 *) Make rsa_oaep_test return non-zero on error.
8047 [Ulf Moeller <ulf@fitug.de>]
8049 *) Add support for native Solaris shared libraries. Configure
8050 solaris-sparc-sc4-pic, make, then run shlib/solaris-sc4.sh. It'd be nice
8051 if someone would make that last step automatic.
8052 [Matthias Loepfe <Matthias.Loepfe@AdNovum.CH>]
8054 *) ctx_size was not built with the right compiler during "make links". Fixed.
8057 *) Change the meaning of 'ALL' in the cipher list. It now means "everything
8058 except NULL ciphers". This means the default cipher list will no longer
8059 enable NULL ciphers. They need to be specifically enabled e.g. with
8060 the string "DEFAULT:eNULL".
8063 *) Fix to RSA private encryption routines: if p < q then it would
8064 occasionally produce an invalid result. This will only happen with
8065 externally generated keys because OpenSSL (and SSLeay) ensure p > q.
8068 *) Be less restrictive and allow also `perl util/perlpath.pl
8069 /path/to/bin/perl' in addition to `perl util/perlpath.pl /path/to/bin',
8070 because this way one can also use an interpreter named `perl5' (which is
8071 usually the name of Perl 5.xxx on platforms where an Perl 4.x is still
8072 installed as `perl').
8073 [Matthias Loepfe <Matthias.Loepfe@adnovum.ch>]
8075 *) Let util/clean-depend.pl work also with older Perl 5.00x versions.
8076 [Matthias Loepfe <Matthias.Loepfe@adnovum.ch>]
8078 *) Fix Makefile.org so CC,CFLAG etc are passed to 'make links' add
8079 advapi32.lib to Win32 build and change the pem test comparision
8080 to fc.exe (thanks to Ulrich Kroener <kroneru@yahoo.com> for the
8081 suggestion). Fix misplaced ASNI prototypes and declarations in evp.h
8082 and crypto/des/ede_cbcm_enc.c.
8085 *) DES quad checksum was broken on big-endian architectures. Fixed.
8088 *) Comment out two functions in bio.h that aren't implemented. Fix up the
8089 Win32 test batch file so it (might) work again. The Win32 test batch file
8090 is horrible: I feel ill....
8093 *) Move various #ifdefs around so NO_SYSLOG, NO_DIRENT etc are now selected
8094 in e_os.h. Audit of header files to check ANSI and non ANSI
8095 sections: 10 functions were absent from non ANSI section and not exported
8096 from Windows DLLs. Fixed up libeay.num for new functions.
8099 *) Make `openssl version' output lines consistent.
8100 [Ralf S. Engelschall]
8102 *) Fix Win32 symbol export lists for BIO functions: Added
8103 BIO_get_ex_new_index, BIO_get_ex_num, BIO_get_ex_data and BIO_set_ex_data
8104 to ms/libeay{16,32}.def.
8105 [Ralf S. Engelschall]
8107 *) Second round of fixing the OpenSSL perl/ stuff. It now at least compiled
8108 fine under Unix and passes some trivial tests I've now added. But the
8109 whole stuff is horribly incomplete, so a README.1ST with a disclaimer was
8110 added to make sure no one expects that this stuff really works in the
8111 OpenSSL 0.9.2 release. Additionally I've started to clean the XS sources
8112 up and fixed a few little bugs and inconsistencies in OpenSSL.{pm,xs} and
8114 [Ralf S. Engelschall]
8116 *) Fix the generation of two part addresses in perl.
8117 [Kenji Miyake <kenji@miyake.org>, integrated by Ben Laurie]
8119 *) Add config entry for Linux on MIPS.
8120 [John Tobey <jtobey@channel1.com>]
8122 *) Make links whenever Configure is run, unless we are on Windoze.
8125 *) Permit extensions to be added to CRLs using crl_section in openssl.cnf.
8126 Currently only issuerAltName and AuthorityKeyIdentifier make any sense
8130 *) Add a useful kludge to allow package maintainers to specify compiler and
8131 other platforms details on the command line without having to patch the
8132 Configure script everytime: One now can use ``perl Configure
8133 <id>:<details>'', i.e. platform ids are allowed to have details appended
8134 to them (seperated by colons). This is treated as there would be a static
8135 pre-configured entry in Configure's %table under key <id> with value
8136 <details> and ``perl Configure <id>'' is called. So, when you want to
8137 perform a quick test-compile under FreeBSD 3.1 with pgcc and without
8138 assembler stuff you can use ``perl Configure "FreeBSD-elf:pgcc:-O6:::"''
8139 now, which overrides the FreeBSD-elf entry on-the-fly.
8140 [Ralf S. Engelschall]
8142 *) Disable new TLS1 ciphersuites by default: they aren't official yet.
8145 *) Allow DSO flags like -fpic, -fPIC, -KPIC etc. to be specified
8146 on the `perl Configure ...' command line. This way one can compile
8147 OpenSSL libraries with Position Independent Code (PIC) which is needed
8148 for linking it into DSOs.
8149 [Ralf S. Engelschall]
8151 *) Remarkably, export ciphers were totally broken and no-one had noticed!
8155 *) Cleaned up the LICENSE document: The official contact for any license
8156 questions now is the OpenSSL core team under openssl-core@openssl.org.
8157 And add a paragraph about the dual-license situation to make sure people
8158 recognize that _BOTH_ the OpenSSL license _AND_ the SSLeay license apply
8159 to the OpenSSL toolkit.
8160 [Ralf S. Engelschall]
8162 *) General source tree makefile cleanups: Made `making xxx in yyy...'
8163 display consistent in the source tree and replaced `/bin/rm' by `rm'.
8164 Additonally cleaned up the `make links' target: Remove unnecessary
8165 semicolons, subsequent redundant removes, inline point.sh into mklink.sh
8166 to speed processing and no longer clutter the display with confusing
8167 stuff. Instead only the actually done links are displayed.
8168 [Ralf S. Engelschall]
8170 *) Permit null encryption ciphersuites, used for authentication only. It used
8171 to be necessary to set the preprocessor define SSL_ALLOW_ENULL to do this.
8172 It is now necessary to set SSL_FORBID_ENULL to prevent the use of null
8176 *) Add a bunch of fixes to the PKCS#7 stuff. It used to sometimes reorder
8177 signed attributes when verifying signatures (this would break them),
8178 the detached data encoding was wrong and public keys obtained using
8179 X509_get_pubkey() weren't freed.
8182 *) Add text documentation for the BUFFER functions. Also added a work around
8183 to a Win95 console bug. This was triggered by the password read stuff: the
8184 last character typed gets carried over to the next fread(). If you were
8185 generating a new cert request using 'req' for example then the last
8186 character of the passphrase would be CR which would then enter the first
8190 *) Added the new `Includes OpenSSL Cryptography Software' button as
8191 doc/openssl_button.{gif,html} which is similar in style to the old SSLeay
8192 button and can be used by applications based on OpenSSL to show the
8193 relationship to the OpenSSL project.
8194 [Ralf S. Engelschall]
8196 *) Remove confusing variables in function signatures in files
8197 ssl/ssl_lib.c and ssl/ssl.h.
8198 [Lennart Bong <lob@kulthea.stacken.kth.se>]
8200 *) Don't install bss_file.c under PREFIX/include/
8201 [Lennart Bong <lob@kulthea.stacken.kth.se>]
8203 *) Get the Win32 compile working again. Modify mkdef.pl so it can handle
8204 functions that return function pointers and has support for NT specific
8205 stuff. Fix mk1mf.pl and VC-32.pl to support NT differences also. Various
8206 #ifdef WIN32 and WINNTs sprinkled about the place and some changes from
8207 unsigned to signed types: this was killing the Win32 compile.
8210 *) Add new certificate file to stack functions,
8211 SSL_add_dir_cert_subjects_to_stack() and
8212 SSL_add_file_cert_subjects_to_stack(). These largely supplant
8213 SSL_load_client_CA_file(), and can be used to add multiple certs easily
8214 to a stack (usually this is then handed to SSL_CTX_set_client_CA_list()).
8215 This means that Apache-SSL and similar packages don't have to mess around
8216 to add as many CAs as they want to the preferred list.
8219 *) Experiment with doxygen documentation. Currently only partially applied to
8221 See http://www.stack.nl/~dimitri/doxygen/index.html, and run doxygen with
8222 openssl.doxy as the configuration file.
8225 *) Get rid of remaining C++-style comments which strict C compilers hate.
8226 [Ralf S. Engelschall, pointed out by Carlos Amengual]
8228 *) Changed BN_RECURSION in bn_mont.c to BN_RECURSION_MONT so it is not
8229 compiled in by default: it has problems with large keys.
8232 *) Add a bunch of SSL_xxx() functions for configuring the temporary RSA and
8233 DH private keys and/or callback functions which directly correspond to
8234 their SSL_CTX_xxx() counterparts but work on a per-connection basis. This
8235 is needed for applications which have to configure certificates on a
8236 per-connection basis (e.g. Apache+mod_ssl) instead of a per-context basis
8238 For the RSA certificate situation is makes no difference, but
8239 for the DSA certificate situation this fixes the "no shared cipher"
8240 problem where the OpenSSL cipher selection procedure failed because the
8241 temporary keys were not overtaken from the context and the API provided
8242 no way to reconfigure them.
8243 The new functions now let applications reconfigure the stuff and they
8244 are in detail: SSL_need_tmp_RSA, SSL_set_tmp_rsa, SSL_set_tmp_dh,
8245 SSL_set_tmp_rsa_callback and SSL_set_tmp_dh_callback. Additionally a new
8246 non-public-API function ssl_cert_instantiate() is used as a helper
8247 function and also to reduce code redundancy inside ssl_rsa.c.
8248 [Ralf S. Engelschall]
8250 *) Move s_server -dcert and -dkey options out of the undocumented feature
8251 area because they are useful for the DSA situation and should be
8252 recognized by the users.
8253 [Ralf S. Engelschall]
8255 *) Fix the cipher decision scheme for export ciphers: the export bits are
8256 *not* within SSL_MKEY_MASK or SSL_AUTH_MASK, they are within
8257 SSL_EXP_MASK. So, the original variable has to be used instead of the
8258 already masked variable.
8259 [Richard Levitte <levitte@stacken.kth.se>]
8261 *) Fix 'port' variable from `int' to `unsigned int' in crypto/bio/b_sock.c
8262 [Richard Levitte <levitte@stacken.kth.se>]
8264 *) Change type of another md_len variable in pk7_doit.c:PKCS7_dataFinal()
8265 from `int' to `unsigned int' because it's a length and initialized by
8266 EVP_DigestFinal() which expects an `unsigned int *'.
8267 [Richard Levitte <levitte@stacken.kth.se>]
8269 *) Don't hard-code path to Perl interpreter on shebang line of Configure
8270 script. Instead use the usual Shell->Perl transition trick.
8271 [Ralf S. Engelschall]
8273 *) Make `openssl x509 -noout -modulus' functional also for DSA certificates
8274 (in addition to RSA certificates) to match the behaviour of `openssl dsa
8275 -noout -modulus' as it's already the case for `openssl rsa -noout
8276 -modulus'. For RSA the -modulus is the real "modulus" while for DSA
8277 currently the public key is printed (a decision which was already done by
8278 `openssl dsa -modulus' in the past) which serves a similar purpose.
8279 Additionally the NO_RSA no longer completely removes the whole -modulus
8280 option; it now only avoids using the RSA stuff. Same applies to NO_DSA
8282 [Ralf S. Engelschall]
8284 *) Add Arne Ansper's reliable BIO - this is an encrypted, block-digested
8285 BIO. See the source (crypto/evp/bio_ok.c) for more info.
8286 [Arne Ansper <arne@ats.cyber.ee>]
8288 *) Dump the old yucky req code that tried (and failed) to allow raw OIDs
8289 to be added. Now both 'req' and 'ca' can use new objects defined in the
8293 *) Add cool BIO that does syslog (or event log on NT).
8294 [Arne Ansper <arne@ats.cyber.ee>, integrated by Ben Laurie]
8296 *) Add support for new TLS ciphersuites, TLS_RSA_EXPORT56_WITH_RC4_56_MD5,
8297 TLS_RSA_EXPORT56_WITH_RC2_CBC_56_MD5 and
8298 TLS_RSA_EXPORT56_WITH_DES_CBC_SHA, as specified in "56-bit Export Cipher
8299 Suites For TLS", draft-ietf-tls-56-bit-ciphersuites-00.txt.
8302 *) Add preliminary config info for new extension code.
8305 *) Make RSA_NO_PADDING really use no padding.
8306 [Ulf Moeller <ulf@fitug.de>]
8308 *) Generate errors when private/public key check is done.
8311 *) Overhaul for 'crl' utility. New function X509_CRL_print. Partial support
8312 for some CRL extensions and new objects added.
8315 *) Really fix the ASN1 IMPLICIT bug this time... Partial support for private
8316 key usage extension and fuller support for authority key id.
8319 *) Add OAEP encryption for the OpenSSL crypto library. OAEP is the improved
8320 padding method for RSA, which is recommended for new applications in PKCS
8321 #1 v2.0 (RFC 2437, October 1998).
8322 OAEP (Optimal Asymmetric Encryption Padding) has better theoretical
8323 foundations than the ad-hoc padding used in PKCS #1 v1.5. It is secure
8324 against Bleichbacher's attack on RSA.
8325 [Ulf Moeller <ulf@fitug.de>, reformatted, corrected and integrated by
8328 *) Updates to the new SSL compression code
8329 [Eric A. Young, (from changes to C2Net SSLeay, integrated by Mark Cox)]
8331 *) Fix so that the version number in the master secret, when passed
8332 via RSA, checks that if TLS was proposed, but we roll back to SSLv3
8333 (because the server will not accept higher), that the version number
8334 is 0x03,0x01, not 0x03,0x00
8335 [Eric A. Young, (from changes to C2Net SSLeay, integrated by Mark Cox)]
8337 *) Run extensive memory leak checks on SSL apps. Fixed *lots* of memory
8338 leaks in ssl/ relating to new X509_get_pubkey() behaviour. Also fixes
8339 in apps/ and an unrelated leak in crypto/dsa/dsa_vrf.c
8342 *) Support for RAW extensions where an arbitrary extension can be
8343 created by including its DER encoding. See apps/openssl.cnf for
8347 *) Make sure latest Perl versions don't interpret some generated C array
8348 code as Perl array code in the crypto/err/err_genc.pl script.
8349 [Lars Weber <3weber@informatik.uni-hamburg.de>]
8351 *) Modify ms/do_ms.bat to not generate assembly language makefiles since
8352 not many people have the assembler. Various Win32 compilation fixes and
8353 update to the INSTALL.W32 file with (hopefully) more accurate Win32
8357 *) Modify configure script 'Configure' to automatically create crypto/date.h
8358 file under Win32 and also build pem.h from pem.org. New script
8359 util/mkfiles.pl to create the MINFO file on environments that can't do a
8360 'make files': perl util/mkfiles.pl >MINFO should work.
8363 *) Major rework of DES function declarations, in the pursuit of correctness
8364 and purity. As a result, many evil casts evaporated, and some weirdness,
8365 too. You may find this causes warnings in your code. Zapping your evil
8366 casts will probably fix them. Mostly.
8369 *) Fix for a typo in asn1.h. Bug fix to object creation script
8370 obj_dat.pl. It considered a zero in an object definition to mean
8371 "end of object": none of the objects in objects.h have any zeros
8372 so it wasn't spotted.
8373 [Steve Henson, reported by Erwann ABALEA <eabalea@certplus.com>]
8375 *) Add support for Triple DES Cipher Block Chaining with Output Feedback
8376 Masking (CBCM). In the absence of test vectors, the best I have been able
8377 to do is check that the decrypt undoes the encrypt, so far. Send me test
8378 vectors if you have them.
8381 *) Correct calculation of key length for export ciphers (too much space was
8382 allocated for null ciphers). This has not been tested!
8385 *) Modifications to the mkdef.pl for Win32 DEF file creation. The usage
8386 message is now correct (it understands "crypto" and "ssl" on its
8387 command line). There is also now an "update" option. This will update
8388 the util/ssleay.num and util/libeay.num files with any new functions.
8390 perl util/mkdef.pl crypto ssl update
8391 it will update them.
8394 *) Overhauled the Perl interface (perl/*):
8395 - ported BN stuff to OpenSSL's different BN library
8396 - made the perl/ source tree CVS-aware
8397 - renamed the package from SSLeay to OpenSSL (the files still contain
8398 their history because I've copied them in the repository)
8399 - removed obsolete files (the test scripts will be replaced
8400 by better Test::Harness variants in the future)
8401 [Ralf S. Engelschall]
8403 *) First cut for a very conservative source tree cleanup:
8404 1. merge various obsolete readme texts into doc/ssleay.txt
8405 where we collect the old documents and readme texts.
8406 2. remove the first part of files where I'm already sure that we no
8407 longer need them because of three reasons: either they are just temporary
8408 files which were left by Eric or they are preserved original files where
8409 I've verified that the diff is also available in the CVS via "cvs diff
8410 -rSSLeay_0_8_1b" or they were renamed (as it was definitely the case for
8411 the crypto/md/ stuff).
8412 [Ralf S. Engelschall]
8414 *) More extension code. Incomplete support for subject and issuer alt
8415 name, issuer and authority key id. Change the i2v function parameters
8416 and add an extra 'crl' parameter in the X509V3_CTX structure: guess
8417 what that's for :-) Fix to ASN1 macro which messed up
8418 IMPLICIT tag and add f_enum.c which adds a2i, i2a for ENUMERATED.
8421 *) Preliminary support for ENUMERATED type. This is largely copied from the
8425 *) Add new function, EVP_MD_CTX_copy() to replace frequent use of memcpy.
8426 [Eric A. Young, (from changes to C2Net SSLeay, integrated by Mark Cox)]
8428 *) Make sure `make rehash' target really finds the `openssl' program.
8429 [Ralf S. Engelschall, Matthias Loepfe <Matthias.Loepfe@adnovum.ch>]
8431 *) Squeeze another 7% of speed out of MD5 assembler, at least on a P2. I'd
8432 like to hear about it if this slows down other processors.
8435 *) Add CygWin32 platform information to Configure script.
8436 [Alan Batie <batie@aahz.jf.intel.com>]
8438 *) Fixed ms/32all.bat script: `no_asm' -> `no-asm'
8439 [Rainer W. Gerling <gerling@mpg-gv.mpg.de>]
8441 *) New program nseq to manipulate netscape certificate sequences
8444 *) Modify crl2pkcs7 so it supports multiple -certfile arguments. Fix a
8448 *) Fixes to BN code. Previously the default was to define BN_RECURSION
8449 but the BN code had some problems that would cause failures when
8450 doing certificate verification and some other functions.
8451 [Eric A. Young, (from changes to C2Net SSLeay, integrated by Mark Cox)]
8453 *) Add ASN1 and PEM code to support netscape certificate sequences.
8456 *) Add ASN1 and PEM code to support netscape certificate sequences.
8459 *) Add several PKIX and private extended key usage OIDs.
8462 *) Modify the 'ca' program to handle the new extension code. Modify
8463 openssl.cnf for new extension format, add comments.
8466 *) More X509 V3 changes. Fix typo in v3_bitstr.c. Add support to 'req'
8467 and add a sample to openssl.cnf so req -x509 now adds appropriate
8471 *) Continued X509 V3 changes. Add to other makefiles, integrate with the
8472 error code, add initial support to X509_print() and x509 application.
8475 *) Takes a deep breath and start addding X509 V3 extension support code. Add
8476 files in crypto/x509v3. Move original stuff to crypto/x509v3/old. All this
8477 stuff is currently isolated and isn't even compiled yet.
8480 *) Continuing patches for GeneralizedTime. Fix up certificate and CRL
8481 ASN1 to use ASN1_TIME and modify print routines to use ASN1_TIME_print.
8482 Removed the versions check from X509 routines when loading extensions:
8483 this allows certain broken certificates that don't set the version
8484 properly to be processed.
8487 *) Deal with irritating shit to do with dependencies, in YAAHW (Yet Another
8488 Ad Hoc Way) - Makefile.ssls now all contain local dependencies, which
8489 can still be regenerated with "make depend".
8492 *) Spelling mistake in C version of CAST-128.
8493 [Ben Laurie, reported by Jeremy Hylton <jeremy@cnri.reston.va.us>]
8495 *) Changes to the error generation code. The perl script err-code.pl
8496 now reads in the old error codes and retains the old numbers, only
8497 adding new ones if necessary. It also only changes the .err files if new
8498 codes are added. The makefiles have been modified to only insert errors
8499 when needed (to avoid needlessly modifying header files). This is done
8500 by only inserting errors if the .err file is newer than the auto generated
8501 C file. To rebuild all the error codes from scratch (the old behaviour)
8502 either modify crypto/Makefile.ssl to pass the -regen flag to err_code.pl
8503 or delete all the .err files.
8506 *) CAST-128 was incorrectly implemented for short keys. The C version has
8507 been fixed, but is untested. The assembler versions are also fixed, but
8508 new assembler HAS NOT BEEN GENERATED FOR WIN32 - the Makefile needs fixing
8509 to regenerate it if needed.
8510 [Ben Laurie, reported (with fix for C version) by Jun-ichiro itojun
8511 Hagino <itojun@kame.net>]
8513 *) File was opened incorrectly in randfile.c.
8514 [Ulf Möller <ulf@fitug.de>]
8516 *) Beginning of support for GeneralizedTime. d2i, i2d, check and print
8517 functions. Also ASN1_TIME suite which is a CHOICE of UTCTime or
8518 GeneralizedTime. ASN1_TIME is the proper type used in certificates et
8519 al: it's just almost always a UTCTime. Note this patch adds new error
8520 codes so do a "make errors" if there are problems.
8523 *) Correct Linux 1 recognition in config.
8524 [Ulf Möller <ulf@fitug.de>]
8526 *) Remove pointless MD5 hash when using DSA keys in ca.
8527 [Anonymous <nobody@replay.com>]
8529 *) Generate an error if given an empty string as a cert directory. Also
8530 generate an error if handed NULL (previously returned 0 to indicate an
8531 error, but didn't set one).
8532 [Ben Laurie, reported by Anonymous <nobody@replay.com>]
8534 *) Add prototypes to SSL methods. Make SSL_write's buffer const, at last.
8537 *) Fix the dummy function BN_ref_mod_exp() in rsaref.c to have the correct
8538 parameters. This was causing a warning which killed off the Win32 compile.
8541 *) Remove C++ style comments from crypto/bn/bn_local.h.
8542 [Neil Costigan <neil.costigan@celocom.com>]
8544 *) The function OBJ_txt2nid was broken. It was supposed to return a nid
8545 based on a text string, looking up short and long names and finally
8546 "dot" format. The "dot" format stuff didn't work. Added new function
8547 OBJ_txt2obj to do the same but return an ASN1_OBJECT and rewrote
8548 OBJ_txt2nid to use it. OBJ_txt2obj can also return objects even if the
8549 OID is not part of the table.
8552 *) Add prototypes to X509 lookup/verify methods, fixing a bug in
8553 X509_LOOKUP_by_alias().
8556 *) Sort openssl functions by name.
8559 *) Get the gendsa program working (hopefully) and add it to app list. Remove
8560 encryption from sample DSA keys (in case anyone is interested the password
8564 *) Make _all_ *_free functions accept a NULL pointer.
8565 [Frans Heymans <fheymans@isaserver.be>]
8567 *) If a DH key is generated in s3_srvr.c, don't blow it by trying to use
8569 [Anonymous <nobody@replay.com>]
8571 *) s_server should send the CAfile as acceptable CAs, not its own cert.
8572 [Bodo Moeller <3moeller@informatik.uni-hamburg.de>]
8574 *) Don't blow it for numeric -newkey arguments to apps/req.
8575 [Bodo Moeller <3moeller@informatik.uni-hamburg.de>]
8577 *) Temp key "for export" tests were wrong in s3_srvr.c.
8578 [Anonymous <nobody@replay.com>]
8580 *) Add prototype for temp key callback functions
8581 SSL_CTX_set_tmp_{rsa,dh}_callback().
8584 *) Make DH_free() tolerate being passed a NULL pointer (like RSA_free() and
8585 DSA_free()). Make X509_PUBKEY_set() check for errors in d2i_PublicKey().
8588 *) X509_name_add_entry() freed the wrong thing after an error.
8589 [Arne Ansper <arne@ats.cyber.ee>]
8591 *) rsa_eay.c would attempt to free a NULL context.
8592 [Arne Ansper <arne@ats.cyber.ee>]
8594 *) BIO_s_socket() had a broken should_retry() on Windoze.
8595 [Arne Ansper <arne@ats.cyber.ee>]
8597 *) BIO_f_buffer() didn't pass on BIO_CTRL_FLUSH.
8598 [Arne Ansper <arne@ats.cyber.ee>]
8600 *) Make sure the already existing X509_STORE->depth variable is initialized
8601 in X509_STORE_new(), but document the fact that this variable is still
8602 unused in the certificate verification process.
8603 [Ralf S. Engelschall]
8605 *) Fix the various library and apps files to free up pkeys obtained from
8606 X509_PUBKEY_get() et al. Also allow x509.c to handle netscape extensions.
8609 *) Fix reference counting in X509_PUBKEY_get(). This makes
8610 demos/maurice/example2.c work, amongst others, probably.
8611 [Steve Henson and Ben Laurie]
8613 *) First cut of a cleanup for apps/. First the `ssleay' program is now named
8614 `openssl' and second, the shortcut symlinks for the `openssl <command>'
8615 are no longer created. This way we have a single and consistent command
8616 line interface `openssl <command>', similar to `cvs <command>'.
8617 [Ralf S. Engelschall, Paul Sutton and Ben Laurie]
8619 *) ca.c: move test for DSA keys inside #ifndef NO_DSA. Make pubkey
8620 BIT STRING wrapper always have zero unused bits.
8623 *) Add CA.pl, perl version of CA.sh, add extended key usage OID.
8626 *) Make the top-level INSTALL documentation easier to understand.
8629 *) Makefiles updated to exit if an error occurs in a sub-directory
8630 make (including if user presses ^C) [Paul Sutton]
8632 *) Make Montgomery context stuff explicit in RSA data structure.
8635 *) Fix build order of pem and err to allow for generated pem.h.
8638 *) Fix renumbering bug in X509_NAME_delete_entry().
8641 *) Enhanced the err-ins.pl script so it makes the error library number
8642 global and can add a library name. This is needed for external ASN1 and
8643 other error libraries.
8646 *) Fixed sk_insert which never worked properly.
8649 *) Fix ASN1 macros so they can handle indefinite length construted
8650 EXPLICIT tags. Some non standard certificates use these: they can now
8654 *) Merged the various old/obsolete SSLeay documentation files (doc/xxx.doc)
8655 into a single doc/ssleay.txt bundle. This way the information is still
8656 preserved but no longer messes up this directory. Now it's new room for
8657 the new set of documenation files.
8658 [Ralf S. Engelschall]
8660 *) SETs were incorrectly DER encoded. This was a major pain, because they
8661 shared code with SEQUENCEs, which aren't coded the same. This means that
8662 almost everything to do with SETs or SEQUENCEs has either changed name or
8663 number of arguments.
8664 [Ben Laurie, based on a partial fix by GP Jayan <gp@nsj.co.jp>]
8666 *) Fix test data to work with the above.
8669 *) Fix the RSA header declarations that hid a bug I fixed in 0.9.0b but
8670 was already fixed by Eric for 0.9.1 it seems.
8671 [Ben Laurie - pointed out by Ulf Möller <ulf@fitug.de>]
8673 *) Autodetect FreeBSD3.
8676 *) Fix various bugs in Configure. This affects the following platforms:
8680 unixware-2.0-pentium
8684 *) Eliminate generated files from CVS. Reorder tests to regenerate files
8685 before they are needed.
8688 *) Generate Makefile.ssl from Makefile.org (to keep CVS happy).
8692 Changes between 0.9.1b and 0.9.1c [23-Dec-1998]
8694 *) Added OPENSSL_VERSION_NUMBER to crypto/crypto.h and
8695 changed SSLeay to OpenSSL in version strings.
8696 [Ralf S. Engelschall]
8698 *) Some fixups to the top-level documents.
8701 *) Fixed the nasty bug where rsaref.h was not found under compile-time
8702 because the symlink to include/ was missing.
8703 [Ralf S. Engelschall]
8705 *) Incorporated the popular no-RSA/DSA-only patches
8706 which allow to compile a RSA-free SSLeay.
8707 [Andrew Cooke / Interrader Ldt., Ralf S. Engelschall]
8709 *) Fixed nasty rehash problem under `make -f Makefile.ssl links'
8710 when "ssleay" is still not found.
8711 [Ralf S. Engelschall]
8713 *) Added more platforms to Configure: Cray T3E, HPUX 11,
8714 [Ralf S. Engelschall, Beckmann <beckman@acl.lanl.gov>]
8716 *) Updated the README file.
8717 [Ralf S. Engelschall]
8719 *) Added various .cvsignore files in the CVS repository subdirs
8720 to make a "cvs update" really silent.
8721 [Ralf S. Engelschall]
8723 *) Recompiled the error-definition header files and added
8724 missing symbols to the Win32 linker tables.
8725 [Ralf S. Engelschall]
8727 *) Cleaned up the top-level documents;
8728 o new files: CHANGES and LICENSE
8729 o merged VERSION, HISTORY* and README* files a CHANGES.SSLeay
8730 o merged COPYRIGHT into LICENSE
8731 o removed obsolete TODO file
8732 o renamed MICROSOFT to INSTALL.W32
8733 [Ralf S. Engelschall]
8735 *) Removed dummy files from the 0.9.1b source tree:
8736 crypto/asn1/x crypto/bio/cd crypto/bio/fg crypto/bio/grep crypto/bio/vi
8737 crypto/bn/asm/......add.c crypto/bn/asm/a.out crypto/dsa/f crypto/md5/f
8738 crypto/pem/gmon.out crypto/perlasm/f crypto/pkcs7/build crypto/rsa/f
8739 crypto/sha/asm/f crypto/threads/f ms/zzz ssl/f ssl/f.mak test/f
8740 util/f.mak util/pl/f util/pl/f.mak crypto/bf/bf_locl.old apps/f
8741 [Ralf S. Engelschall]
8743 *) Added various platform portability fixes.
8746 *) The Genesis of the OpenSSL rpject:
8747 We start with the latest (unreleased) SSLeay version 0.9.1b which Eric A.
8748 Young and Tim J. Hudson created while they were working for C2Net until
8750 [The OpenSSL Project]
8753 Changes between 0.9.0b and 0.9.1b [not released]
8755 *) Updated a few CA certificates under certs/
8758 *) Changed some BIGNUM api stuff.
8761 *) Various platform ports: OpenBSD, Ultrix, IRIX 64bit, NetBSD,
8762 DGUX x86, Linux Alpha, etc.
8765 *) New COMP library [crypto/comp/] for SSL Record Layer Compression:
8766 RLE (dummy implemented) and ZLIB (really implemented when ZLIB is
8770 *) Add -strparse option to asn1pars program which parses nested
8772 [Dr Stephen Henson <shenson@bigfoot.com>]
8774 *) Added "oid_file" to ssleay.cnf for "ca" and "req" programs.
8777 *) DSA fix for "ca" program.
8780 *) Added "-genkey" option to "dsaparam" program.
8783 *) Added RIPE MD160 (rmd160) message digest.
8786 *) Added -a (all) option to "ssleay version" command.
8789 *) Added PLATFORM define which is the id given to Configure.
8792 *) Added MemCheck_XXXX functions to crypto/mem.c for memory checking.
8795 *) Extended the ASN.1 parser routines.
8798 *) Extended BIO routines to support REUSEADDR, seek, tell, etc.
8801 *) Added a BN_CTX to the BN library.
8804 *) Fixed the weak key values in DES library
8807 *) Changed API in EVP library for cipher aliases.
8810 *) Added support for RC2/64bit cipher.
8813 *) Converted the lhash library to the crypto/mem.c functions.
8816 *) Added more recognized ASN.1 object ids.
8819 *) Added more RSA padding checks for SSL/TLS.
8822 *) Added BIO proxy/filter functionality.
8825 *) Added extra_certs to SSL_CTX which can be used
8826 send extra CA certificates to the client in the CA cert chain sending
8827 process. It can be configured with SSL_CTX_add_extra_chain_cert().
8830 *) Now Fortezza is denied in the authentication phase because
8831 this is key exchange mechanism is not supported by SSLeay at all.
8834 *) Additional PKCS1 checks.
8837 *) Support the string "TLSv1" for all TLS v1 ciphers.
8840 *) Added function SSL_get_ex_data_X509_STORE_CTX_idx() which gives the
8841 ex_data index of the SSL context in the X509_STORE_CTX ex_data.
8844 *) Fixed a few memory leaks.
8847 *) Fixed various code and comment typos.
8850 *) A minor bug in ssl/s3_clnt.c where there would always be 4 0
8851 bytes sent in the client random.
8852 [Edward Bishop <ebishop@spyglass.com>]