5 Changes between 0.9.8i and 0.9.9 [xx XXX xxxx]
7 *) Delta CRL support. New use deltas option which will attempt to locate
8 and search any appropriate delta CRLs available.
10 This work was sponsored by Google.
13 *) Support for CRLs partitioned by reason code. Reorganise CRL processing
14 code and add additional score elements. Validate alternate CRL paths
15 as part of the CRL checking and indicate a new error "CRL path validation
16 error" in this case. Applications wanting additional details can use
17 the verify callback and check the new "parent" field. If this is not
18 NULL CRL path validation is taking place. Existing applications wont
19 see this because it requires extended CRL support which is off by
22 This work was sponsored by Google.
25 *) Support for freshest CRL extension.
27 This work was sponsored by Google.
30 *) Initial indirect CRL support. Currently only supported in the CRLs
31 passed directly and not via lookup. Process certificate issuer
32 CRL entry extension and lookup CRL entries by bother issuer name
33 and serial number. Check and process CRL issuer entry in IDP extension.
35 This work was sponsored by Google.
38 *) Add support for distinct certificate and CRL paths. The CRL issuer
39 certificate is validated separately in this case. Only enabled if
40 an extended CRL support flag is set: this flag will enable additional
41 CRL functionality in future.
43 This work was sponsored by Google.
46 *) Add support for policy mappings extension.
48 This work was sponsored by Google.
51 *) Fixes to pathlength constraint, self issued certificate handling,
52 policy processing to align with RFC3280 and PKITS tests.
54 This work was sponsored by Google.
57 *) Support for name constraints certificate extension. DN, email, DNS
58 and URI types are currently supported.
60 This work was sponsored by Google.
63 *) To cater for systems that provide a pointer-based thread ID rather
64 than numeric, deprecate the current numeric thread ID mechanism and
65 replace it with a structure and associated callback type. This
66 mechanism allows a numeric "hash" to be extracted from a thread ID in
67 either case, and on platforms where pointers are larger than 'long',
68 mixing is done to help ensure the numeric 'hash' is usable even if it
69 can't be guaranteed unique. The default mechanism is to use "&errno"
70 as a pointer-based thread ID to distinguish between threads.
72 Applications that want to provide their own thread IDs should now use
73 CRYPTO_THREADID_set_callback() to register a callback that will call
74 either CRYPTO_THREADID_set_numeric() or CRYPTO_THREADID_set_pointer().
76 Note that ERR_remove_state() is now deprecated, because it is tied
77 to the assumption that thread IDs are numeric. ERR_remove_state(0)
78 to free the current thread's error state should be replaced by
79 ERR_remove_thread_state(NULL).
81 (This new approach replaces the functions CRYPTO_set_idptr_callback(),
82 CRYPTO_get_idptr_callback(), and CRYPTO_thread_idptr() that existed in
83 OpenSSL 0.9.9-dev between June 2006 and August 2008. Also, if an
84 application was previously providing a numeric thread callback that
85 was inappropriate for distinguishing threads, then uniqueness might
86 have been obtained with &errno that happened immediately in the
87 intermediate development versions of OpenSSL; this is no longer the
88 case, the numeric thread callback will now override the automatic use
90 [Geoff Thorpe, with help from Bodo Moeller]
92 *) Initial support for different CRL issuing certificates. This covers a
93 simple case where the self issued certificates in the chain exist and
94 the real CRL issuer is higher in the existing chain.
96 This work was sponsored by Google.
99 *) Removed effectively defunct crypto/store from the build.
102 *) Revamp of STACK to provide stronger type-checking. Still to come:
103 TXT_DB, bsearch(?), OBJ_bsearch, qsort, CRYPTO_EX_DATA, ASN1_VALUE,
104 ASN1_STRING, CONF_VALUE.
107 *) Add a new SSL_MODE_RELEASE_BUFFERS mode flag to release unused buffer
108 RAM on SSL connections. This option can save about 34k per idle SSL.
111 *) Revamp of LHASH to provide stronger type-checking. Still to come:
112 STACK, TXT_DB, bsearch, qsort.
115 *) Initial support for Cryptographic Message Syntax (aka CMS) based
116 on RFC3850, RFC3851 and RFC3852. New cms directory and cms utility,
117 support for data, signedData, compressedData, digestedData and
118 encryptedData, envelopedData types included. Scripts to check against
119 RFC4134 examples draft and interop and consistency checks of many
120 content types and variants.
123 *) Add options to enc utility to support use of zlib compression BIO.
126 *) Extend mk1mf to support importing of options and assembly language
127 files from Configure script, currently only included in VC-WIN32.
128 The assembly language rules can now optionally generate the source
129 files from the associated perl scripts.
132 *) Implement remaining functionality needed to support GOST ciphersuites.
133 Interop testing has been performed using CryptoPro implementations.
134 [Victor B. Wagner <vitus@cryptocom.ru>]
136 *) s390x assembler pack.
139 *) ARMv4 assembler pack. ARMv4 refers to v4 and later ISA, not CPU
143 *) Implement Opaque PRF Input TLS extension as specified in
144 draft-rescorla-tls-opaque-prf-input-00.txt. Since this is not an
145 official specification yet and no extension type assignment by
146 IANA exists, this extension (for now) will have to be explicitly
147 enabled when building OpenSSL by providing the extension number
148 to use. For example, specify an option
150 -DTLSEXT_TYPE_opaque_prf_input=0x9527
152 to the "config" or "Configure" script to enable the extension,
153 assuming extension number 0x9527 (which is a completely arbitrary
154 and unofficial assignment based on the MD5 hash of the Internet
155 Draft). Note that by doing so, you potentially lose
156 interoperability with other TLS implementations since these might
157 be using the same extension number for other purposes.
159 SSL_set_tlsext_opaque_prf_input(ssl, src, len) is used to set the
160 opaque PRF input value to use in the handshake. This will create
161 an interal copy of the length-'len' string at 'src', and will
162 return non-zero for success.
164 To get more control and flexibility, provide a callback function
167 SSL_CTX_set_tlsext_opaque_prf_input_callback(ctx, cb)
168 SSL_CTX_set_tlsext_opaque_prf_input_callback_arg(ctx, arg)
172 int (*cb)(SSL *, void *peerinput, size_t len, void *arg);
175 Callback function 'cb' will be called in handshakes, and is
176 expected to use SSL_set_tlsext_opaque_prf_input() as appropriate.
177 Argument 'arg' is for application purposes (the value as given to
178 SSL_CTX_set_tlsext_opaque_prf_input_callback_arg() will directly
179 be provided to the callback function). The callback function
180 has to return non-zero to report success: usually 1 to use opaque
181 PRF input just if possible, or 2 to enforce use of the opaque PRF
182 input. In the latter case, the library will abort the handshake
183 if opaque PRF input is not successfully negotiated.
185 Arguments 'peerinput' and 'len' given to the callback function
186 will always be NULL and 0 in the case of a client. A server will
187 see the client's opaque PRF input through these variables if
188 available (NULL and 0 otherwise). Note that if the server
189 provides an opaque PRF input, the length must be the same as the
190 length of the client's opaque PRF input.
192 Note that the callback function will only be called when creating
193 a new session (session resumption can resume whatever was
194 previously negotiated), and will not be called in SSL 2.0
195 handshakes; thus, SSL_CTX_set_options(ctx, SSL_OP_NO_SSLv2) or
196 SSL_set_options(ssl, SSL_OP_NO_SSLv2) is especially recommended
197 for applications that need to enforce opaque PRF input.
201 *) Update ssl code to support digests other than SHA1+MD5 for handshake
204 [Victor B. Wagner <vitus@cryptocom.ru>]
206 *) Add RFC4507 support to OpenSSL. This includes the corrections in
207 RFC4507bis. The encrypted ticket format is an encrypted encoded
208 SSL_SESSION structure, that way new session features are automatically
211 If a client application caches session in an SSL_SESSION structure
212 support is transparent because tickets are now stored in the encoded
215 The SSL_CTX structure automatically generates keys for ticket
216 protection in servers so again support should be possible
217 with no application modification.
219 If a client or server wishes to disable RFC4507 support then the option
220 SSL_OP_NO_TICKET can be set.
222 Add a TLS extension debugging callback to allow the contents of any client
223 or server extensions to be examined.
225 This work was sponsored by Google.
228 *) Final changes to avoid use of pointer pointer casts in OpenSSL.
229 OpenSSL should now compile cleanly on gcc 4.2
230 [Peter Hartley <pdh@utter.chaos.org.uk>, Steve Henson]
232 *) Update SSL library to use new EVP_PKEY MAC API. Include generic MAC
233 support including streaming MAC support: this is required for GOST
235 [Victor B. Wagner <vitus@cryptocom.ru>, Steve Henson]
237 *) Add option -stream to use PKCS#7 streaming in smime utility. New
238 function i2d_PKCS7_bio_stream() and PEM_write_PKCS7_bio_stream()
239 to output in BER and PEM format.
242 *) Experimental support for use of HMAC via EVP_PKEY interface. This
243 allows HMAC to be handled via the EVP_DigestSign*() interface. The
244 EVP_PKEY "key" in this case is the HMAC key, potentially allowing
245 ENGINE support for HMAC keys which are unextractable. New -mac and
246 -macopt options to dgst utility.
249 *) New option -sigopt to dgst utility. Update dgst to use
250 EVP_Digest{Sign,Verify}*. These two changes make it possible to use
251 alternative signing paramaters such as X9.31 or PSS in the dgst
255 *) Change ssl_cipher_apply_rule(), the internal function that does
256 the work each time a ciphersuite string requests enabling
257 ("foo+bar"), moving ("+foo+bar"), disabling ("-foo+bar", or
258 removing ("!foo+bar") a class of ciphersuites: Now it maintains
259 the order of disabled ciphersuites such that those ciphersuites
260 that most recently went from enabled to disabled not only stay
261 in order with respect to each other, but also have higher priority
262 than other disabled ciphersuites the next time ciphersuites are
265 This means that you can now say, e.g., "PSK:-PSK:HIGH" to enable
266 the same ciphersuites as with "HIGH" alone, but in a specific
267 order where the PSK ciphersuites come first (since they are the
268 most recently disabled ciphersuites when "HIGH" is parsed).
270 Also, change ssl_create_cipher_list() (using this new
271 funcionality) such that between otherwise identical
272 cihpersuites, ephemeral ECDH is preferred over ephemeral DH in
276 *) Change ssl_create_cipher_list() so that it automatically
277 arranges the ciphersuites in reasonable order before starting
278 to process the rule string. Thus, the definition for "DEFAULT"
279 (SSL_DEFAULT_CIPHER_LIST) now is just "ALL:!aNULL:!eNULL", but
280 remains equivalent to "AES:ALL:!aNULL:!eNULL:+aECDH:+kRSA:+RC4:@STRENGTH".
281 This makes it much easier to arrive at a reasonable default order
282 in applications for which anonymous ciphers are OK (meaning
283 that you can't actually use DEFAULT).
284 [Bodo Moeller; suggested by Victor Duchovni]
286 *) Split the SSL/TLS algorithm mask (as used for ciphersuite string
287 processing) into multiple integers instead of setting
288 "SSL_MKEY_MASK" bits, "SSL_AUTH_MASK" bits, "SSL_ENC_MASK",
289 "SSL_MAC_MASK", and "SSL_SSL_MASK" bits all in a single integer.
290 (These masks as well as the individual bit definitions are hidden
291 away into the non-exported interface ssl/ssl_locl.h, so this
292 change to the definition of the SSL_CIPHER structure shouldn't
293 affect applications.) This give us more bits for each of these
294 categories, so there is no longer a need to coagulate AES128 and
295 AES256 into a single algorithm bit, and to coagulate Camellia128
296 and Camellia256 into a single algorithm bit, which has led to all
299 Thus, among other things, the kludge introduced in 0.9.7m and
300 0.9.8e for masking out AES256 independently of AES128 or masking
301 out Camellia256 independently of AES256 is not needed here in 0.9.9.
303 With the change, we also introduce new ciphersuite aliases that
304 so far were missing: "AES128", "AES256", "CAMELLIA128", and
308 *) Add support for dsa-with-SHA224 and dsa-with-SHA256.
309 Use the leftmost N bytes of the signature input if the input is
310 larger than the prime q (with N being the size in bytes of q).
313 *) Very *very* experimental PKCS#7 streaming encoder support. Nothing uses
314 it yet and it is largely untested.
317 *) Add support for the ecdsa-with-SHA224/256/384/512 signature types.
320 *) Initial incomplete changes to avoid need for function casts in OpenSSL
321 some compilers (gcc 4.2 and later) reject their use. Safestack is
322 reimplemented. Update ASN1 to avoid use of legacy functions.
325 *) Win32/64 targets are linked with Winsock2.
328 *) Add an X509_CRL_METHOD structure to allow CRL processing to be redirected
329 to external functions. This can be used to increase CRL handling
330 efficiency especially when CRLs are very large by (for example) storing
331 the CRL revoked certificates in a database.
334 *) Overhaul of by_dir code. Add support for dynamic loading of CRLs so
335 new CRLs added to a directory can be used. New command line option
336 -verify_return_error to s_client and s_server. This causes real errors
337 to be returned by the verify callback instead of carrying on no matter
338 what. This reflects the way a "real world" verify callback would behave.
341 *) GOST engine, supporting several GOST algorithms and public key formats.
342 Kindly donated by Cryptocom.
345 *) Partial support for Issuing Distribution Point CRL extension. CRLs
346 partitioned by DP are handled but no indirect CRL or reason partitioning
347 (yet). Complete overhaul of CRL handling: now the most suitable CRL is
348 selected via a scoring technique which handles IDP and AKID in CRLs.
351 *) New X509_STORE_CTX callbacks lookup_crls() and lookup_certs() which
352 will ultimately be used for all verify operations: this will remove the
353 X509_STORE dependency on certificate verification and allow alternative
354 lookup methods. X509_STORE based implementations of these two callbacks.
357 *) Allow multiple CRLs to exist in an X509_STORE with matching issuer names.
358 Modify get_crl() to find a valid (unexpired) CRL if possible.
361 *) New function X509_CRL_match() to check if two CRLs are identical. Normally
362 this would be called X509_CRL_cmp() but that name is already used by
363 a function that just compares CRL issuer names. Cache several CRL
364 extensions in X509_CRL structure and cache CRLDP in X509.
367 *) Store a "canonical" representation of X509_NAME structure (ASN1 Name)
368 this maps equivalent X509_NAME structures into a consistent structure.
369 Name comparison can then be performed rapidly using memcmp().
372 *) Non-blocking OCSP request processing. Add -timeout option to ocsp
376 *) Allow digests to supply their own micalg string for S/MIME type using
377 the ctrl EVP_MD_CTRL_MICALG.
380 *) During PKCS7 signing pass the PKCS7 SignerInfo structure to the
381 EVP_PKEY_METHOD before and after signing via the EVP_PKEY_CTRL_PKCS7_SIGN
382 ctrl. It can then customise the structure before and/or after signing
386 *) New function OBJ_add_sigid() to allow application defined signature OIDs
387 to be added to OpenSSLs internal tables. New function OBJ_sigid_free()
388 to free up any added signature OIDs.
391 *) New functions EVP_CIPHER_do_all(), EVP_CIPHER_do_all_sorted(),
392 EVP_MD_do_all() and EVP_MD_do_all_sorted() to enumerate internal
393 digest and cipher tables. New options added to openssl utility:
394 list-message-digest-algorithms and list-cipher-algorithms.
397 *) Change the array representation of binary polynomials: the list
398 of degrees of non-zero coefficients is now terminated with -1.
399 Previously it was terminated with 0, which was also part of the
400 value; thus, the array representation was not applicable to
401 polynomials where t^0 has coefficient zero. This change makes
402 the array representation useful in a more general context.
405 *) Various modifications and fixes to SSL/TLS cipher string
406 handling. For ECC, the code now distinguishes between fixed ECDH
407 with RSA certificates on the one hand and with ECDSA certificates
408 on the other hand, since these are separate ciphersuites. The
409 unused code for Fortezza ciphersuites has been removed.
411 For consistency with EDH, ephemeral ECDH is now called "EECDH"
412 (not "ECDHE"). For consistency with the code for DH
413 certificates, use of ECDH certificates is now considered ECDH
414 authentication, not RSA or ECDSA authentication (the latter is
415 merely the CA's signing algorithm and not actively used in the
418 The temporary ciphersuite alias "ECCdraft" is no longer
419 available, and ECC ciphersuites are no longer excluded from "ALL"
420 and "DEFAULT". The following aliases now exist for RFC 4492
421 ciphersuites, most of these by analogy with the DH case:
423 kECDHr - ECDH cert, signed with RSA
424 kECDHe - ECDH cert, signed with ECDSA
425 kECDH - ECDH cert (signed with either RSA or ECDSA)
426 kEECDH - ephemeral ECDH
427 ECDH - ECDH cert or ephemeral ECDH
433 AECDH - anonymous ECDH
434 EECDH - non-anonymous ephemeral ECDH (equivalent to "kEECDH:-AECDH")
438 *) Add additional S/MIME capabilities for AES and GOST ciphers if supported.
439 Use correct micalg parameters depending on digest(s) in signed message.
442 *) Add engine support for EVP_PKEY_ASN1_METHOD. Add functions to process
443 an ENGINE asn1 method. Support ENGINE lookups in the ASN1 code.
446 *) Initial engine support for EVP_PKEY_METHOD. New functions to permit
447 an engine to register a method. Add ENGINE lookups for methods and
448 functional reference processing.
451 *) New functions EVP_Digest{Sign,Verify)*. These are enchance versions of
452 EVP_{Sign,Verify}* which allow an application to customise the signature
456 *) New -resign option to smime utility. This adds one or more signers
457 to an existing PKCS#7 signedData structure. Also -md option to use an
458 alternative message digest algorithm for signing.
461 *) Tidy up PKCS#7 routines and add new functions to make it easier to
462 create PKCS7 structures containing multiple signers. Update smime
463 application to support multiple signers.
466 *) New -macalg option to pkcs12 utility to allow setting of an alternative
470 *) Initial support for PKCS#5 v2.0 PRFs other than default SHA1 HMAC.
471 Reorganize PBE internals to lookup from a static table using NIDs,
472 add support for HMAC PBE OID translation. Add a EVP_CIPHER ctrl:
473 EVP_CTRL_PBE_PRF_NID this allows a cipher to specify an alternative
474 PRF which will be automatically used with PBES2.
477 *) Replace the algorithm specific calls to generate keys in "req" with the
481 *) Update PKCS#7 enveloped data routines to use new API. This is now
482 supported by any public key method supporting the encrypt operation. A
483 ctrl is added to allow the public key algorithm to examine or modify
484 the PKCS#7 RecipientInfo structure if it needs to: for RSA this is
488 *) Add a ctrl to asn1 method to allow a public key algorithm to express
489 a default digest type to use. In most cases this will be SHA1 but some
490 algorithms (such as GOST) need to specify an alternative digest. The
491 return value indicates how strong the prefernce is 1 means optional and
492 2 is mandatory (that is it is the only supported type). Modify
493 ASN1_item_sign() to accept a NULL digest argument to indicate it should
494 use the default md. Update openssl utilities to use the default digest
495 type for signing if it is not explicitly indicated.
498 *) Use OID cross reference table in ASN1_sign() and ASN1_verify(). New
499 EVP_MD flag EVP_MD_FLAG_PKEY_METHOD_SIGNATURE. This uses the relevant
500 signing method from the key type. This effectively removes the link
501 between digests and public key types.
504 *) Add an OID cross reference table and utility functions. Its purpose is to
505 translate between signature OIDs such as SHA1WithrsaEncryption and SHA1,
506 rsaEncryption. This will allow some of the algorithm specific hackery
507 needed to use the correct OID to be removed.
510 *) Remove algorithm specific dependencies when setting PKCS7_SIGNER_INFO
511 structures for PKCS7_sign(). They are now set up by the relevant public
515 *) Add provisional EC pkey method with support for ECDSA and ECDH.
518 *) Add support for key derivation (agreement) in the API, DH method and
522 *) Add DSA pkey method and DH pkey methods, extend DH ASN1 method to support
523 public and private key formats. As a side effect these add additional
524 command line functionality not previously available: DSA signatures can be
525 generated and verified using pkeyutl and DH key support and generation in
530 [Oliver Tappe <zooey@hirschkaefer.de>]
532 *) New make target "install_html_docs" installs HTML renditions of the
534 [Oliver Tappe <zooey@hirschkaefer.de>]
536 *) New utility "genpkey" this is analagous to "genrsa" etc except it can
537 generate keys for any algorithm. Extend and update EVP_PKEY_METHOD to
538 support key and parameter generation and add initial key generation
539 functionality for RSA.
542 *) Add functions for main EVP_PKEY_method operations. The undocumented
543 functions EVP_PKEY_{encrypt,decrypt} have been renamed to
544 EVP_PKEY_{encrypt,decrypt}_old.
547 *) Initial definitions for EVP_PKEY_METHOD. This will be a high level public
548 key API, doesn't do much yet.
551 *) New function EVP_PKEY_asn1_get0_info() to retrieve information about
552 public key algorithms. New option to openssl utility:
553 "list-public-key-algorithms" to print out info.
556 *) Implement the Supported Elliptic Curves Extension for
557 ECC ciphersuites from draft-ietf-tls-ecc-12.txt.
560 *) Don't free up OIDs in OBJ_cleanup() if they are in use by EVP_MD or
561 EVP_CIPHER structures to avoid later problems in EVP_cleanup().
564 *) New utilities pkey and pkeyparam. These are similar to algorithm specific
565 utilities such as rsa, dsa, dsaparam etc except they process any key
569 *) Transfer public key printing routines to EVP_PKEY_ASN1_METHOD. New
570 functions EVP_PKEY_print_public(), EVP_PKEY_print_private(),
571 EVP_PKEY_print_param() to print public key data from an EVP_PKEY
575 *) Initial support for pluggable public key ASN1.
576 De-spaghettify the public key ASN1 handling. Move public and private
577 key ASN1 handling to a new EVP_PKEY_ASN1_METHOD structure. Relocate
578 algorithm specific handling to a single module within the relevant
579 algorithm directory. Add functions to allow (near) opaque processing
580 of public and private key structures.
583 *) Implement the Supported Point Formats Extension for
584 ECC ciphersuites from draft-ietf-tls-ecc-12.txt.
587 *) Add initial support for RFC 4279 PSK TLS ciphersuites. Add members
588 for the psk identity [hint] and the psk callback functions to the
589 SSL_SESSION, SSL and SSL_CTX structure.
592 PSK-RC4-SHA, PSK-3DES-EDE-CBC-SHA, PSK-AES128-CBC-SHA,
596 SSL_CTX_use_psk_identity_hint
597 SSL_get_psk_identity_hint
599 SSL_use_psk_identity_hint
601 [Mika Kousa and Pasi Eronen of Nokia Corporation]
603 *) Add RFC 3161 compliant time stamp request creation, response generation
604 and response verification functionality.
605 [Zoltán Glózik <zglozik@opentsa.org>, The OpenTSA Project]
607 *) Add initial support for TLS extensions, specifically for the server_name
608 extension so far. The SSL_SESSION, SSL_CTX, and SSL data structures now
609 have new members for a host name. The SSL data structure has an
610 additional member SSL_CTX *initial_ctx so that new sessions can be
611 stored in that context to allow for session resumption, even after the
612 SSL has been switched to a new SSL_CTX in reaction to a client's
613 server_name extension.
615 New functions (subject to change):
618 SSL_get_servername_type()
621 New CTRL codes and macros (subject to change):
623 SSL_CTRL_SET_TLSEXT_SERVERNAME_CB
624 - SSL_CTX_set_tlsext_servername_callback()
625 SSL_CTRL_SET_TLSEXT_SERVERNAME_ARG
626 - SSL_CTX_set_tlsext_servername_arg()
627 SSL_CTRL_SET_TLSEXT_HOSTNAME - SSL_set_tlsext_host_name()
629 openssl s_client has a new '-servername ...' option.
631 openssl s_server has new options '-servername_host ...', '-cert2 ...',
632 '-key2 ...', '-servername_fatal' (subject to change). This allows
633 testing the HostName extension for a specific single host name ('-cert'
634 and '-key' remain fallbacks for handshakes without HostName
635 negotiation). If the unrecogninzed_name alert has to be sent, this by
636 default is a warning; it becomes fatal with the '-servername_fatal'
639 [Peter Sylvester, Remy Allais, Christophe Renou]
641 *) Whirlpool hash implementation is added.
644 *) BIGNUM code on 64-bit SPARCv9 targets is switched from bn(64,64) to
645 bn(64,32). Because of instruction set limitations it doesn't have
646 any negative impact on performance. This was done mostly in order
647 to make it possible to share assembler modules, such as bn_mul_mont
648 implementations, between 32- and 64-bit builds without hassle.
651 *) Move code previously exiled into file crypto/ec/ec2_smpt.c
652 to ec2_smpl.c, and no longer require the OPENSSL_EC_BIN_PT_COMP
656 *) New candidate for BIGNUM assembler implementation, bn_mul_mont,
657 dedicated Montgomery multiplication procedure, is introduced.
658 BN_MONT_CTX is modified to allow bn_mul_mont to reach for higher
659 "64-bit" performance on certain 32-bit targets.
662 *) New option SSL_OP_NO_COMP to disable use of compression selectively
663 in SSL structures. New SSL ctrl to set maximum send fragment size.
664 Save memory by seeting the I/O buffer sizes dynamically instead of
665 using the maximum available value.
668 *) New option -V for 'openssl ciphers'. This prints the ciphersuite code
669 in addition to the text details.
672 *) Very, very preliminary EXPERIMENTAL support for printing of general
673 ASN1 structures. This currently produces rather ugly output and doesn't
674 handle several customised structures at all.
677 *) Integrated support for PVK file format and some related formats such
678 as MS PUBLICKEYBLOB and PRIVATEKEYBLOB. Command line switches to support
679 these in the 'rsa' and 'dsa' utilities.
682 *) Support for PKCS#1 RSAPublicKey format on rsa utility command line.
685 *) Remove the ancient ASN1_METHOD code. This was only ever used in one
686 place for the (very old) "NETSCAPE" format certificates which are now
687 handled using new ASN1 code equivalents.
690 *) Let the TLSv1_method() etc. functions return a 'const' SSL_METHOD
691 pointer and make the SSL_METHOD parameter in SSL_CTX_new,
692 SSL_CTX_set_ssl_version and SSL_set_ssl_method 'const'.
695 *) Modify CRL distribution points extension code to print out previously
696 unsupported fields. Enhance extension setting code to allow setting of
700 *) Add print and set support for Issuing Distribution Point CRL extension.
703 *) Change 'Configure' script to enable Camellia by default.
706 Changes between 0.9.8h and 0.9.8i [xx XXX xxxx]
708 *) Add support for Local Machine Keyset attribute in PKCS#12 files.
711 *) Fix BN_GF2m_mod_arr() top-bit cleanup code.
714 *) Expand ENGINE to support engine supplied SSL client certificate functions.
716 This work was sponsored by Logica.
719 *) Add CryptoAPI ENGINE to support use of RSA and DSA keys held in Windows
720 keystores. Support for SSL/TLS client authentication too.
721 Not compiled unless enable-capieng specified to Configure.
723 This work was sponsored by Logica.
726 Changes between 0.9.8g and 0.9.8h [28 May 2008]
728 *) Fix flaw if 'Server Key exchange message' is omitted from a TLS
729 handshake which could lead to a cilent crash as found using the
730 Codenomicon TLS test suite (CVE-2008-1672)
731 [Steve Henson, Mark Cox]
733 *) Fix double free in TLS server name extensions which could lead to
734 a remote crash found by Codenomicon TLS test suite (CVE-2008-0891)
737 *) Clear error queue in SSL_CTX_use_certificate_chain_file()
739 Clear the error queue to ensure that error entries left from
740 older function calls do not interfere with the correct operation.
741 [Lutz Jaenicke, Erik de Castro Lopo]
743 *) Remove root CA certificates of commercial CAs:
745 The OpenSSL project does not recommend any specific CA and does not
746 have any policy with respect to including or excluding any CA.
747 Therefore it does not make any sense to ship an arbitrary selection
748 of root CA certificates with the OpenSSL software.
751 *) RSA OAEP patches to fix two separate invalid memory reads.
752 The first one involves inputs when 'lzero' is greater than
753 'SHA_DIGEST_LENGTH' (it would read about SHA_DIGEST_LENGTH bytes
754 before the beginning of from). The second one involves inputs where
755 the 'db' section contains nothing but zeroes (there is a one-byte
756 invalid read after the end of 'db').
757 [Ivan Nestlerode <inestlerode@us.ibm.com>]
759 *) Add TLS session ticket callback. This allows an application to set
760 TLS ticket cipher and HMAC keys rather than relying on hardcoded fixed
761 values. This is useful for key rollover for example where several key
762 sets may exist with different names.
765 *) Reverse ENGINE-internal logic for caching default ENGINE handles.
766 This was broken until now in 0.9.8 releases, such that the only way
767 a registered ENGINE could be used (assuming it initialises
768 successfully on the host) was to explicitly set it as the default
769 for the relevant algorithms. This is in contradiction with 0.9.7
770 behaviour and the documentation. With this fix, when an ENGINE is
771 registered into a given algorithm's table of implementations, the
772 'uptodate' flag is reset so that auto-discovery will be used next
773 time a new context for that algorithm attempts to select an
775 [Ian Lister (tweaked by Geoff Thorpe)]
777 *) Update the GMP engine glue to do direct copies between BIGNUM and
778 mpz_t when openssl and GMP use the same limb size. Otherwise the
779 existing "conversion via a text string export" trick is still used.
780 [Paul Sheer <paulsheer@gmail.com>, Geoff Thorpe]
782 *) Zlib compression BIO. This is a filter BIO which compressed and
783 uncompresses any data passed through it.
786 *) Add AES_wrap_key() and AES_unwrap_key() functions to implement
787 RFC3394 compatible AES key wrapping.
790 *) Add utility functions to handle ASN1 structures. ASN1_STRING_set0():
791 sets string data without copying. X509_ALGOR_set0() and
792 X509_ALGOR_get0(): set and retrieve X509_ALGOR (AlgorithmIdentifier)
793 data. Attribute function X509at_get0_data_by_OBJ(): retrieves data
794 from an X509_ATTRIBUTE structure optionally checking it occurs only
795 once. ASN1_TYPE_set1(): set and ASN1_TYPE structure copying supplied
799 *) Fix BN flag handling in RSA_eay_mod_exp() and BN_MONT_CTX_set()
800 to get the expected BN_FLG_CONSTTIME behavior.
801 [Bodo Moeller (Google)]
805 - fixed wrong usage of ioctlsocket() when build for LIBC BSD sockets
806 - fixed do_tests.pl to run the test suite with CLIB builds too (CLIB_OPT)
807 - added some more tests to do_tests.pl
808 - fixed RunningProcess usage so that it works with newer LIBC NDKs too
809 - removed usage of BN_LLONG for CLIB builds to avoid runtime dependency
810 - added new Configure targets netware-clib-bsdsock, netware-clib-gcc,
811 netware-clib-bsdsock-gcc, netware-libc-bsdsock-gcc
812 - various changes to netware.pl to enable gcc-cross builds on Win32
814 - changed crypto/bio/b_sock.c to work with macro functions (CLIB BSD)
815 - various changes to fix missing prototype warnings
816 - fixed x86nasm.pl to create correct asm files for NASM COFF output
817 - added AES, WHIRLPOOL and CPUID assembler code to build files
818 - added missing AES assembler make rules to mk1mf.pl
819 - fixed order of includes in apps/ocsp.c so that e_os.h settings apply
820 [Guenter Knauf <eflash@gmx.net>]
822 *) Implement certificate status request TLS extension defined in RFC3546.
823 A client can set the appropriate parameters and receive the encoded
824 OCSP response via a callback. A server can query the supplied parameters
825 and set the encoded OCSP response in the callback. Add simplified examples
826 to s_client and s_server.
829 Changes between 0.9.8f and 0.9.8g [19 Oct 2007]
832 + Binary incompatibility of ssl_ctx_st structure
833 + DTLS interoperation with non-compliant servers
834 + Don't call get_session_cb() without proposed session
835 + Fix ia64 assembler code
836 [Andy Polyakov, Steve Henson]
838 Changes between 0.9.8e and 0.9.8f [11 Oct 2007]
840 *) DTLS Handshake overhaul. There were longstanding issues with
841 OpenSSL DTLS implementation, which were making it impossible for
842 RFC 4347 compliant client to communicate with OpenSSL server.
843 Unfortunately just fixing these incompatibilities would "cut off"
844 pre-0.9.8f clients. To allow for hassle free upgrade post-0.9.8e
845 server keeps tolerating non RFC compliant syntax. The opposite is
846 not true, 0.9.8f client can not communicate with earlier server.
847 This update even addresses CVE-2007-4995.
850 *) Changes to avoid need for function casts in OpenSSL: some compilers
851 (gcc 4.2 and later) reject their use.
852 [Kurt Roeckx <kurt@roeckx.be>, Peter Hartley <pdh@utter.chaos.org.uk>,
855 *) Add RFC4507 support to OpenSSL. This includes the corrections in
856 RFC4507bis. The encrypted ticket format is an encrypted encoded
857 SSL_SESSION structure, that way new session features are automatically
860 If a client application caches session in an SSL_SESSION structure
861 support is transparent because tickets are now stored in the encoded
864 The SSL_CTX structure automatically generates keys for ticket
865 protection in servers so again support should be possible
866 with no application modification.
868 If a client or server wishes to disable RFC4507 support then the option
869 SSL_OP_NO_TICKET can be set.
871 Add a TLS extension debugging callback to allow the contents of any client
872 or server extensions to be examined.
874 This work was sponsored by Google.
877 *) Add initial support for TLS extensions, specifically for the server_name
878 extension so far. The SSL_SESSION, SSL_CTX, and SSL data structures now
879 have new members for a host name. The SSL data structure has an
880 additional member SSL_CTX *initial_ctx so that new sessions can be
881 stored in that context to allow for session resumption, even after the
882 SSL has been switched to a new SSL_CTX in reaction to a client's
883 server_name extension.
885 New functions (subject to change):
888 SSL_get_servername_type()
891 New CTRL codes and macros (subject to change):
893 SSL_CTRL_SET_TLSEXT_SERVERNAME_CB
894 - SSL_CTX_set_tlsext_servername_callback()
895 SSL_CTRL_SET_TLSEXT_SERVERNAME_ARG
896 - SSL_CTX_set_tlsext_servername_arg()
897 SSL_CTRL_SET_TLSEXT_HOSTNAME - SSL_set_tlsext_host_name()
899 openssl s_client has a new '-servername ...' option.
901 openssl s_server has new options '-servername_host ...', '-cert2 ...',
902 '-key2 ...', '-servername_fatal' (subject to change). This allows
903 testing the HostName extension for a specific single host name ('-cert'
904 and '-key' remain fallbacks for handshakes without HostName
905 negotiation). If the unrecogninzed_name alert has to be sent, this by
906 default is a warning; it becomes fatal with the '-servername_fatal'
909 [Peter Sylvester, Remy Allais, Christophe Renou, Steve Henson]
911 *) Add AES and SSE2 assembly language support to VC++ build.
914 *) Mitigate attack on final subtraction in Montgomery reduction.
917 *) Fix crypto/ec/ec_mult.c to work properly with scalars of value 0
918 (which previously caused an internal error).
921 *) Squeeze another 10% out of IGE mode when in != out.
924 *) AES IGE mode speedup.
925 [Dean Gaudet (Google)]
927 *) Add the Korean symmetric 128-bit cipher SEED (see
928 http://www.kisa.or.kr/kisa/seed/jsp/seed_eng.jsp) and
929 add SEED ciphersuites from RFC 4162:
931 TLS_RSA_WITH_SEED_CBC_SHA = "SEED-SHA"
932 TLS_DHE_DSS_WITH_SEED_CBC_SHA = "DHE-DSS-SEED-SHA"
933 TLS_DHE_RSA_WITH_SEED_CBC_SHA = "DHE-RSA-SEED-SHA"
934 TLS_DH_anon_WITH_SEED_CBC_SHA = "ADH-SEED-SHA"
936 To minimize changes between patchlevels in the OpenSSL 0.9.8
937 series, SEED remains excluded from compilation unless OpenSSL
938 is configured with 'enable-seed'.
941 *) Mitigate branch prediction attacks, which can be practical if a
942 single processor is shared, allowing a spy process to extract
943 information. For detailed background information, see
944 http://eprint.iacr.org/2007/039 (O. Aciicmez, S. Gueron,
945 J.-P. Seifert, "New Branch Prediction Vulnerabilities in OpenSSL
946 and Necessary Software Countermeasures"). The core of the change
947 are new versions BN_div_no_branch() and
948 BN_mod_inverse_no_branch() of BN_div() and BN_mod_inverse(),
949 respectively, which are slower, but avoid the security-relevant
950 conditional branches. These are automatically called by BN_div()
951 and BN_mod_inverse() if the flag BN_FLG_CONSTTIME is set for one
952 of the input BIGNUMs. Also, BN_is_bit_set() has been changed to
953 remove a conditional branch.
955 BN_FLG_CONSTTIME is the new name for the previous
956 BN_FLG_EXP_CONSTTIME flag, since it now affects more than just
957 modular exponentiation. (Since OpenSSL 0.9.7h, setting this flag
958 in the exponent causes BN_mod_exp_mont() to use the alternative
959 implementation in BN_mod_exp_mont_consttime().) The old name
960 remains as a deprecated alias.
962 Similary, RSA_FLAG_NO_EXP_CONSTTIME is replaced by a more general
963 RSA_FLAG_NO_CONSTTIME flag since the RSA implementation now uses
964 constant-time implementations for more than just exponentiation.
965 Here too the old name is kept as a deprecated alias.
967 BN_BLINDING_new() will now use BN_dup() for the modulus so that
968 the BN_BLINDING structure gets an independent copy of the
969 modulus. This means that the previous "BIGNUM *m" argument to
970 BN_BLINDING_new() and to BN_BLINDING_create_param() now
971 essentially becomes "const BIGNUM *m", although we can't actually
972 change this in the header file before 0.9.9. It allows
973 RSA_setup_blinding() to use BN_with_flags() on the modulus to
974 enable BN_FLG_CONSTTIME.
976 [Matthew D Wood (Intel Corp)]
978 *) In the SSL/TLS server implementation, be strict about session ID
979 context matching (which matters if an application uses a single
980 external cache for different purposes). Previously,
981 out-of-context reuse was forbidden only if SSL_VERIFY_PEER was
982 set. This did ensure strict client verification, but meant that,
983 with applications using a single external cache for quite
984 different requirements, clients could circumvent ciphersuite
985 restrictions for a given session ID context by starting a session
986 in a different context.
989 *) Include "!eNULL" in SSL_DEFAULT_CIPHER_LIST to make sure that
990 a ciphersuite string such as "DEFAULT:RSA" cannot enable
991 authentication-only ciphersuites.
994 Changes between 0.9.8d and 0.9.8e [23 Feb 2007]
996 *) Since AES128 and AES256 (and similarly Camellia128 and
997 Camellia256) share a single mask bit in the logic of
998 ssl/ssl_ciph.c, the code for masking out disabled ciphers needs a
999 kludge to work properly if AES128 is available and AES256 isn't
1000 (or if Camellia128 is available and Camellia256 isn't).
1003 *) Fix the BIT STRING encoding generated by crypto/ec/ec_asn1.c
1004 (within i2d_ECPrivateKey, i2d_ECPKParameters, i2d_ECParameters):
1005 When a point or a seed is encoded in a BIT STRING, we need to
1006 prevent the removal of trailing zero bits to get the proper DER
1007 encoding. (By default, crypto/asn1/a_bitstr.c assumes the case
1008 of a NamedBitList, for which trailing 0 bits need to be removed.)
1011 *) Have SSL/TLS server implementation tolerate "mismatched" record
1012 protocol version while receiving ClientHello even if the
1013 ClientHello is fragmented. (The server can't insist on the
1014 particular protocol version it has chosen before the ServerHello
1015 message has informed the client about his choice.)
1018 *) Add RFC 3779 support.
1019 [Rob Austein for ARIN, Ben Laurie]
1021 *) Load error codes if they are not already present instead of using a
1022 static variable. This allows them to be cleanly unloaded and reloaded.
1023 Improve header file function name parsing.
1026 *) extend SMTP and IMAP protocol emulation in s_client to use EHLO
1027 or CAPABILITY handshake as required by RFCs.
1030 Changes between 0.9.8c and 0.9.8d [28 Sep 2006]
1032 *) Introduce limits to prevent malicious keys being able to
1033 cause a denial of service. (CVE-2006-2940)
1034 [Steve Henson, Bodo Moeller]
1036 *) Fix ASN.1 parsing of certain invalid structures that can result
1037 in a denial of service. (CVE-2006-2937) [Steve Henson]
1039 *) Fix buffer overflow in SSL_get_shared_ciphers() function.
1040 (CVE-2006-3738) [Tavis Ormandy and Will Drewry, Google Security Team]
1042 *) Fix SSL client code which could crash if connecting to a
1043 malicious SSLv2 server. (CVE-2006-4343)
1044 [Tavis Ormandy and Will Drewry, Google Security Team]
1046 *) Since 0.9.8b, ciphersuite strings naming explicit ciphersuites
1047 match only those. Before that, "AES256-SHA" would be interpreted
1048 as a pattern and match "AES128-SHA" too (since AES128-SHA got
1049 the same strength classification in 0.9.7h) as we currently only
1050 have a single AES bit in the ciphersuite description bitmap.
1051 That change, however, also applied to ciphersuite strings such as
1052 "RC4-MD5" that intentionally matched multiple ciphersuites --
1053 namely, SSL 2.0 ciphersuites in addition to the more common ones
1054 from SSL 3.0/TLS 1.0.
1056 So we change the selection algorithm again: Naming an explicit
1057 ciphersuite selects this one ciphersuite, and any other similar
1058 ciphersuite (same bitmap) from *other* protocol versions.
1059 Thus, "RC4-MD5" again will properly select both the SSL 2.0
1060 ciphersuite and the SSL 3.0/TLS 1.0 ciphersuite.
1062 Since SSL 2.0 does not have any ciphersuites for which the
1063 128/256 bit distinction would be relevant, this works for now.
1064 The proper fix will be to use different bits for AES128 and
1065 AES256, which would have avoided the problems from the beginning;
1066 however, bits are scarce, so we can only do this in a new release
1067 (not just a patchlevel) when we can change the SSL_CIPHER
1068 definition to split the single 'unsigned long mask' bitmap into
1069 multiple values to extend the available space.
1073 Changes between 0.9.8b and 0.9.8c [05 Sep 2006]
1075 *) Avoid PKCS #1 v1.5 signature attack discovered by Daniel Bleichenbacher
1076 (CVE-2006-4339) [Ben Laurie and Google Security Team]
1078 *) Add AES IGE and biIGE modes.
1081 *) Change the Unix randomness entropy gathering to use poll() when
1082 possible instead of select(), since the latter has some
1083 undesirable limitations.
1084 [Darryl Miles via Richard Levitte and Bodo Moeller]
1086 *) Disable "ECCdraft" ciphersuites more thoroughly. Now special
1087 treatment in ssl/ssl_ciph.s makes sure that these ciphersuites
1088 cannot be implicitly activated as part of, e.g., the "AES" alias.
1089 However, please upgrade to OpenSSL 0.9.9[-dev] for
1090 non-experimental use of the ECC ciphersuites to get TLS extension
1091 support, which is required for curve and point format negotiation
1092 to avoid potential handshake problems.
1095 *) Disable rogue ciphersuites:
1097 - SSLv2 0x08 0x00 0x80 ("RC4-64-MD5")
1098 - SSLv3/TLSv1 0x00 0x61 ("EXP1024-RC2-CBC-MD5")
1099 - SSLv3/TLSv1 0x00 0x60 ("EXP1024-RC4-MD5")
1101 The latter two were purportedly from
1102 draft-ietf-tls-56-bit-ciphersuites-0[01].txt, but do not really
1105 Also deactivate the remaining ciphersuites from
1106 draft-ietf-tls-56-bit-ciphersuites-01.txt. These are just as
1107 unofficial, and the ID has long expired.
1110 *) Fix RSA blinding Heisenbug (problems sometimes occured on
1111 dual-core machines) and other potential thread-safety issues.
1114 *) Add the symmetric cipher Camellia (128-bit, 192-bit, 256-bit key
1115 versions), which is now available for royalty-free use
1116 (see http://info.isl.ntt.co.jp/crypt/eng/info/chiteki.html).
1117 Also, add Camellia TLS ciphersuites from RFC 4132.
1119 To minimize changes between patchlevels in the OpenSSL 0.9.8
1120 series, Camellia remains excluded from compilation unless OpenSSL
1121 is configured with 'enable-camellia'.
1124 *) Disable the padding bug check when compression is in use. The padding
1125 bug check assumes the first packet is of even length, this is not
1126 necessarily true if compresssion is enabled and can result in false
1127 positives causing handshake failure. The actual bug test is ancient
1128 code so it is hoped that implementations will either have fixed it by
1129 now or any which still have the bug do not support compression.
1132 Changes between 0.9.8a and 0.9.8b [04 May 2006]
1134 *) When applying a cipher rule check to see if string match is an explicit
1135 cipher suite and only match that one cipher suite if it is.
1138 *) Link in manifests for VC++ if needed.
1139 [Austin Ziegler <halostatue@gmail.com>]
1141 *) Update support for ECC-based TLS ciphersuites according to
1142 draft-ietf-tls-ecc-12.txt with proposed changes (but without
1143 TLS extensions, which are supported starting with the 0.9.9
1144 branch, not in the OpenSSL 0.9.8 branch).
1147 *) New functions EVP_CIPHER_CTX_new() and EVP_CIPHER_CTX_free() to support
1148 opaque EVP_CIPHER_CTX handling.
1151 *) Fixes and enhancements to zlib compression code. We now only use
1152 "zlib1.dll" and use the default __cdecl calling convention on Win32
1153 to conform with the standards mentioned here:
1154 http://www.zlib.net/DLL_FAQ.txt
1155 Static zlib linking now works on Windows and the new --with-zlib-include
1156 --with-zlib-lib options to Configure can be used to supply the location
1157 of the headers and library. Gracefully handle case where zlib library
1161 *) Several fixes and enhancements to the OID generation code. The old code
1162 sometimes allowed invalid OIDs (1.X for X >= 40 for example), couldn't
1163 handle numbers larger than ULONG_MAX, truncated printing and had a
1164 non standard OBJ_obj2txt() behaviour.
1167 *) Add support for building of engines under engine/ as shared libraries
1168 under VC++ build system.
1171 *) Corrected the numerous bugs in the Win32 path splitter in DSO.
1172 Hopefully, we will not see any false combination of paths any more.
1175 Changes between 0.9.8 and 0.9.8a [11 Oct 2005]
1177 *) Remove the functionality of SSL_OP_MSIE_SSLV2_RSA_PADDING
1178 (part of SSL_OP_ALL). This option used to disable the
1179 countermeasure against man-in-the-middle protocol-version
1180 rollback in the SSL 2.0 server implementation, which is a bad
1181 idea. (CVE-2005-2969)
1183 [Bodo Moeller; problem pointed out by Yutaka Oiwa (Research Center
1184 for Information Security, National Institute of Advanced Industrial
1185 Science and Technology [AIST], Japan)]
1187 *) Add two function to clear and return the verify parameter flags.
1190 *) Keep cipherlists sorted in the source instead of sorting them at
1191 runtime, thus removing the need for a lock.
1194 *) Avoid some small subgroup attacks in Diffie-Hellman.
1195 [Nick Mathewson and Ben Laurie]
1197 *) Add functions for well-known primes.
1200 *) Extended Windows CE support.
1201 [Satoshi Nakamura and Andy Polyakov]
1203 *) Initialize SSL_METHOD structures at compile time instead of during
1204 runtime, thus removing the need for a lock.
1207 *) Make PKCS7_decrypt() work even if no certificate is supplied by
1208 attempting to decrypt each encrypted key in turn. Add support to
1212 Changes between 0.9.7h and 0.9.8 [05 Jul 2005]
1214 [NB: OpenSSL 0.9.7i and later 0.9.7 patch levels were released after
1217 *) Add libcrypto.pc and libssl.pc for those who feel they need them.
1220 *) Change CA.sh and CA.pl so they don't bundle the CSR and the private
1221 key into the same file any more.
1224 *) Add initial support for Win64, both IA64 and AMD64/x64 flavors.
1227 *) Add -utf8 command line and config file option to 'ca'.
1228 [Stefan <stf@udoma.org]
1230 *) Removed the macro des_crypt(), as it seems to conflict with some
1231 libraries. Use DES_crypt().
1234 *) Correct naming of the 'chil' and '4758cca' ENGINEs. This
1235 involves renaming the source and generated shared-libs for
1236 both. The engines will accept the corrected or legacy ids
1237 ('ncipher' and '4758_cca' respectively) when binding. NB,
1238 this only applies when building 'shared'.
1239 [Corinna Vinschen <vinschen@redhat.com> and Geoff Thorpe]
1241 *) Add attribute functions to EVP_PKEY structure. Modify
1242 PKCS12_create() to recognize a CSP name attribute and
1243 use it. Make -CSP option work again in pkcs12 utility.
1246 *) Add new functionality to the bn blinding code:
1247 - automatic re-creation of the BN_BLINDING parameters after
1248 a fixed number of uses (currently 32)
1249 - add new function for parameter creation
1250 - introduce flags to control the update behaviour of the
1251 BN_BLINDING parameters
1252 - hide BN_BLINDING structure
1253 Add a second BN_BLINDING slot to the RSA structure to improve
1254 performance when a single RSA object is shared among several
1258 *) Add support for DTLS.
1259 [Nagendra Modadugu <nagendra@cs.stanford.edu> and Ben Laurie]
1261 *) Add support for DER encoded private keys (SSL_FILETYPE_ASN1)
1262 to SSL_CTX_use_PrivateKey_file() and SSL_use_PrivateKey_file()
1265 *) Remove buggy and incompletet DH cert support from
1266 ssl/ssl_rsa.c and ssl/s3_both.c
1269 *) Use SHA-1 instead of MD5 as the default digest algorithm for
1270 the apps/openssl applications.
1273 *) Compile clean with "-Wall -Wmissing-prototypes
1274 -Wstrict-prototypes -Wmissing-declarations -Werror". Currently
1275 DEBUG_SAFESTACK must also be set.
1278 *) Change ./Configure so that certain algorithms can be disabled by default.
1279 The new counterpiece to "no-xxx" is "enable-xxx".
1281 The patented RC5 and MDC2 algorithms will now be disabled unless
1282 "enable-rc5" and "enable-mdc2", respectively, are specified.
1284 (IDEA remains enabled despite being patented. This is because IDEA
1285 is frequently required for interoperability, and there is no license
1286 fee for non-commercial use. As before, "no-idea" can be used to
1287 avoid this algorithm.)
1291 *) Add processing of proxy certificates (see RFC 3820). This work was
1292 sponsored by KTH (The Royal Institute of Technology in Stockholm) and
1293 EGEE (Enabling Grids for E-science in Europe).
1296 *) RC4 performance overhaul on modern architectures/implementations, such
1297 as Intel P4, IA-64 and AMD64.
1300 *) New utility extract-section.pl. This can be used specify an alternative
1301 section number in a pod file instead of having to treat each file as
1302 a separate case in Makefile. This can be done by adding two lines to the
1305 =for comment openssl_section:XXX
1307 The blank line is mandatory.
1311 *) New arguments -certform, -keyform and -pass for s_client and s_server
1312 to allow alternative format key and certificate files and passphrase
1316 *) New structure X509_VERIFY_PARAM which combines current verify parameters,
1317 update associated structures and add various utility functions.
1319 Add new policy related verify parameters, include policy checking in
1320 standard verify code. Enhance 'smime' application with extra parameters
1321 to support policy checking and print out.
1324 *) Add a new engine to support VIA PadLock ACE extensions in the VIA C3
1325 Nehemiah processors. These extensions support AES encryption in hardware
1326 as well as RNG (though RNG support is currently disabled).
1327 [Michal Ludvig <michal@logix.cz>, with help from Andy Polyakov]
1329 *) Deprecate BN_[get|set]_params() functions (they were ignored internally).
1332 *) New FIPS 180-2 algorithms, SHA-224/-256/-384/-512 are implemented.
1333 [Andy Polyakov and a number of other people]
1335 *) Improved PowerPC platform support. Most notably BIGNUM assembler
1336 implementation contributed by IBM.
1337 [Suresh Chari, Peter Waltenberg, Andy Polyakov]
1339 *) The new 'RSA_generate_key_ex' function now takes a BIGNUM for the public
1340 exponent rather than 'unsigned long'. There is a corresponding change to
1341 the new 'rsa_keygen' element of the RSA_METHOD structure.
1342 [Jelte Jansen, Geoff Thorpe]
1344 *) Functionality for creating the initial serial number file is now
1345 moved from CA.pl to the 'ca' utility with a new option -create_serial.
1347 (Before OpenSSL 0.9.7e, CA.pl used to initialize the serial
1348 number file to 1, which is bound to cause problems. To avoid
1349 the problems while respecting compatibility between different 0.9.7
1350 patchlevels, 0.9.7e employed 'openssl x509 -next_serial' in
1351 CA.pl for serial number initialization. With the new release 0.9.8,
1352 we can fix the problem directly in the 'ca' utility.)
1355 *) Reduced header interdepencies by declaring more opaque objects in
1356 ossl_typ.h. As a consequence, including some headers (eg. engine.h) will
1357 give fewer recursive includes, which could break lazy source code - so
1358 this change is covered by the OPENSSL_NO_DEPRECATED symbol. As always,
1359 developers should define this symbol when building and using openssl to
1360 ensure they track the recommended behaviour, interfaces, [etc], but
1361 backwards-compatible behaviour prevails when this isn't defined.
1364 *) New function X509_POLICY_NODE_print() which prints out policy nodes.
1367 *) Add new EVP function EVP_CIPHER_CTX_rand_key and associated functionality.
1368 This will generate a random key of the appropriate length based on the
1369 cipher context. The EVP_CIPHER can provide its own random key generation
1370 routine to support keys of a specific form. This is used in the des and
1371 3des routines to generate a key of the correct parity. Update S/MIME
1372 code to use new functions and hence generate correct parity DES keys.
1373 Add EVP_CHECK_DES_KEY #define to return an error if the key is not
1374 valid (weak or incorrect parity).
1377 *) Add a local set of CRLs that can be used by X509_verify_cert() as well
1378 as looking them up. This is useful when the verified structure may contain
1379 CRLs, for example PKCS#7 signedData. Modify PKCS7_verify() to use any CRLs
1380 present unless the new PKCS7_NO_CRL flag is asserted.
1383 *) Extend ASN1 oid configuration module. It now additionally accepts the
1386 shortName = some long name, 1.2.3.4
1389 *) Reimplemented the BN_CTX implementation. There is now no more static
1390 limitation on the number of variables it can handle nor the depth of the
1391 "stack" handling for BN_CTX_start()/BN_CTX_end() pairs. The stack
1392 information can now expand as required, and rather than having a single
1393 static array of bignums, BN_CTX now uses a linked-list of such arrays
1394 allowing it to expand on demand whilst maintaining the usefulness of
1395 BN_CTX's "bundling".
1398 *) Add a missing BN_CTX parameter to the 'rsa_mod_exp' callback in RSA_METHOD
1399 to allow all RSA operations to function using a single BN_CTX.
1402 *) Preliminary support for certificate policy evaluation and checking. This
1403 is initially intended to pass the tests outlined in "Conformance Testing
1404 of Relying Party Client Certificate Path Processing Logic" v1.07.
1407 *) bn_dup_expand() has been deprecated, it was introduced in 0.9.7 and
1408 remained unused and not that useful. A variety of other little bignum
1409 tweaks and fixes have also been made continuing on from the audit (see
1413 *) Constify all or almost all d2i, c2i, s2i and r2i functions, along with
1414 associated ASN1, EVP and SSL functions and old ASN1 macros.
1417 *) BN_zero() only needs to set 'top' and 'neg' to zero for correct results,
1418 and this should never fail. So the return value from the use of
1419 BN_set_word() (which can fail due to needless expansion) is now deprecated;
1420 if OPENSSL_NO_DEPRECATED is defined, BN_zero() is a void macro.
1423 *) BN_CTX_get() should return zero-valued bignums, providing the same
1424 initialised value as BN_new().
1425 [Geoff Thorpe, suggested by Ulf Möller]
1427 *) Support for inhibitAnyPolicy certificate extension.
1430 *) An audit of the BIGNUM code is underway, for which debugging code is
1431 enabled when BN_DEBUG is defined. This makes stricter enforcements on what
1432 is considered valid when processing BIGNUMs, and causes execution to
1433 assert() when a problem is discovered. If BN_DEBUG_RAND is defined,
1434 further steps are taken to deliberately pollute unused data in BIGNUM
1435 structures to try and expose faulty code further on. For now, openssl will
1436 (in its default mode of operation) continue to tolerate the inconsistent
1437 forms that it has tolerated in the past, but authors and packagers should
1438 consider trying openssl and their own applications when compiled with
1439 these debugging symbols defined. It will help highlight potential bugs in
1440 their own code, and will improve the test coverage for OpenSSL itself. At
1441 some point, these tighter rules will become openssl's default to improve
1442 maintainability, though the assert()s and other overheads will remain only
1443 in debugging configurations. See bn.h for more details.
1444 [Geoff Thorpe, Nils Larsch, Ulf Möller]
1446 *) BN_CTX_init() has been deprecated, as BN_CTX is an opaque structure
1447 that can only be obtained through BN_CTX_new() (which implicitly
1448 initialises it). The presence of this function only made it possible
1449 to overwrite an existing structure (and cause memory leaks).
1452 *) Because of the callback-based approach for implementing LHASH as a
1453 template type, lh_insert() adds opaque objects to hash-tables and
1454 lh_doall() or lh_doall_arg() are typically used with a destructor callback
1455 to clean up those corresponding objects before destroying the hash table
1456 (and losing the object pointers). So some over-zealous constifications in
1457 LHASH have been relaxed so that lh_insert() does not take (nor store) the
1458 objects as "const" and the lh_doall[_arg] callback wrappers are not
1459 prototyped to have "const" restrictions on the object pointers they are
1460 given (and so aren't required to cast them away any more).
1463 *) The tmdiff.h API was so ugly and minimal that our own timing utility
1464 (speed) prefers to use its own implementation. The two implementations
1465 haven't been consolidated as yet (volunteers?) but the tmdiff API has had
1466 its object type properly exposed (MS_TM) instead of casting to/from "char
1467 *". This may still change yet if someone realises MS_TM and "ms_time_***"
1468 aren't necessarily the greatest nomenclatures - but this is what was used
1469 internally to the implementation so I've used that for now.
1472 *) Ensure that deprecated functions do not get compiled when
1473 OPENSSL_NO_DEPRECATED is defined. Some "openssl" subcommands and a few of
1474 the self-tests were still using deprecated key-generation functions so
1475 these have been updated also.
1478 *) Reorganise PKCS#7 code to separate the digest location functionality
1479 into PKCS7_find_digest(), digest addtion into PKCS7_bio_add_digest().
1480 New function PKCS7_set_digest() to set the digest type for PKCS#7
1481 digestedData type. Add additional code to correctly generate the
1482 digestedData type and add support for this type in PKCS7 initialization
1486 *) New function PKCS7_set0_type_other() this initializes a PKCS7
1487 structure of type "other".
1490 *) Fix prime generation loop in crypto/bn/bn_prime.pl by making
1491 sure the loop does correctly stop and breaking ("division by zero")
1492 modulus operations are not performed. The (pre-generated) prime
1493 table crypto/bn/bn_prime.h was already correct, but it could not be
1494 re-generated on some platforms because of the "division by zero"
1495 situation in the script.
1496 [Ralf S. Engelschall]
1498 *) Update support for ECC-based TLS ciphersuites according to
1499 draft-ietf-tls-ecc-03.txt: the KDF1 key derivation function with
1500 SHA-1 now is only used for "small" curves (where the
1501 representation of a field element takes up to 24 bytes); for
1502 larger curves, the field element resulting from ECDH is directly
1503 used as premaster secret.
1504 [Douglas Stebila (Sun Microsystems Laboratories)]
1506 *) Add code for kP+lQ timings to crypto/ec/ectest.c, and add SEC2
1507 curve secp160r1 to the tests.
1508 [Douglas Stebila (Sun Microsystems Laboratories)]
1510 *) Add the possibility to load symbols globally with DSO.
1511 [Götz Babin-Ebell <babin-ebell@trustcenter.de> via Richard Levitte]
1513 *) Add the functions ERR_set_mark() and ERR_pop_to_mark() for better
1514 control of the error stack.
1517 *) Add support for STORE in ENGINE.
1520 *) Add the STORE type. The intention is to provide a common interface
1521 to certificate and key stores, be they simple file-based stores, or
1522 HSM-type store, or LDAP stores, or...
1523 NOTE: The code is currently UNTESTED and isn't really used anywhere.
1526 *) Add a generic structure called OPENSSL_ITEM. This can be used to
1527 pass a list of arguments to any function as well as provide a way
1528 for a function to pass data back to the caller.
1531 *) Add the functions BUF_strndup() and BUF_memdup(). BUF_strndup()
1532 works like BUF_strdup() but can be used to duplicate a portion of
1533 a string. The copy gets NUL-terminated. BUF_memdup() duplicates
1537 *) Add the function sk_find_ex() which works like sk_find(), but will
1538 return an index to an element even if an exact match couldn't be
1539 found. The index is guaranteed to point at the element where the
1540 searched-for key would be inserted to preserve sorting order.
1543 *) Add the function OBJ_bsearch_ex() which works like OBJ_bsearch() but
1544 takes an extra flags argument for optional functionality. Currently,
1545 the following flags are defined:
1547 OBJ_BSEARCH_VALUE_ON_NOMATCH
1548 This one gets OBJ_bsearch_ex() to return a pointer to the first
1549 element where the comparing function returns a negative or zero
1552 OBJ_BSEARCH_FIRST_VALUE_ON_MATCH
1553 This one gets OBJ_bsearch_ex() to return a pointer to the first
1554 element where the comparing function returns zero. This is useful
1555 if there are more than one element where the comparing function
1559 *) Make it possible to create self-signed certificates with 'openssl ca'
1560 in such a way that the self-signed certificate becomes part of the
1561 CA database and uses the same mechanisms for serial number generation
1562 as all other certificate signing. The new flag '-selfsign' enables
1563 this functionality. Adapt CA.sh and CA.pl.in.
1566 *) Add functionality to check the public key of a certificate request
1567 against a given private. This is useful to check that a certificate
1568 request can be signed by that key (self-signing).
1571 *) Make it possible to have multiple active certificates with the same
1572 subject in the CA index file. This is done only if the keyword
1573 'unique_subject' is set to 'no' in the main CA section (default
1574 if 'CA_default') of the configuration file. The value is saved
1575 with the database itself in a separate index attribute file,
1576 named like the index file with '.attr' appended to the name.
1579 *) Generate muti valued AVAs using '+' notation in config files for
1583 *) Support for nameConstraints certificate extension.
1586 *) Support for policyConstraints certificate extension.
1589 *) Support for policyMappings certificate extension.
1592 *) Make sure the default DSA_METHOD implementation only uses its
1593 dsa_mod_exp() and/or bn_mod_exp() handlers if they are non-NULL,
1594 and change its own handlers to be NULL so as to remove unnecessary
1595 indirection. This lets alternative implementations fallback to the
1596 default implementation more easily.
1599 *) Support for directoryName in GeneralName related extensions
1603 *) Make it possible to link applications using Makefile.shared.
1604 Make that possible even when linking against static libraries!
1607 *) Support for single pass processing for S/MIME signing. This now
1608 means that S/MIME signing can be done from a pipe, in addition
1609 cleartext signing (multipart/signed type) is effectively streaming
1610 and the signed data does not need to be all held in memory.
1612 This is done with a new flag PKCS7_STREAM. When this flag is set
1613 PKCS7_sign() only initializes the PKCS7 structure and the actual signing
1614 is done after the data is output (and digests calculated) in
1615 SMIME_write_PKCS7().
1618 *) Add full support for -rpath/-R, both in shared libraries and
1619 applications, at least on the platforms where it's known how
1623 *) In crypto/ec/ec_mult.c, implement fast point multiplication with
1624 precomputation, based on wNAF splitting: EC_GROUP_precompute_mult()
1625 will now compute a table of multiples of the generator that
1626 makes subsequent invocations of EC_POINTs_mul() or EC_POINT_mul()
1627 faster (notably in the case of a single point multiplication,
1628 scalar * generator).
1629 [Nils Larsch, Bodo Moeller]
1631 *) IPv6 support for certificate extensions. The various extensions
1632 which use the IP:a.b.c.d can now take IPv6 addresses using the
1633 formats of RFC1884 2.2 . IPv6 addresses are now also displayed
1637 *) Added an ENGINE that implements RSA by performing private key
1638 exponentiations with the GMP library. The conversions to and from
1639 GMP's mpz_t format aren't optimised nor are any montgomery forms
1640 cached, and on x86 it appears OpenSSL's own performance has caught up.
1641 However there are likely to be other architectures where GMP could
1642 provide a boost. This ENGINE is not built in by default, but it can be
1643 specified at Configure time and should be accompanied by the necessary
1644 linker additions, eg;
1645 ./config -DOPENSSL_USE_GMP -lgmp
1648 *) "openssl engine" will not display ENGINE/DSO load failure errors when
1649 testing availability of engines with "-t" - the old behaviour is
1650 produced by increasing the feature's verbosity with "-tt".
1653 *) ECDSA routines: under certain error conditions uninitialized BN objects
1654 could be freed. Solution: make sure initialization is performed early
1655 enough. (Reported and fix supplied by Nils Larsch <nla@trustcenter.de>
1659 *) Key-generation can now be implemented in RSA_METHOD, DSA_METHOD
1660 and DH_METHOD (eg. by ENGINE implementations) to override the normal
1661 software implementations. For DSA and DH, parameter generation can
1662 also be overriden by providing the appropriate method callbacks.
1665 *) Change the "progress" mechanism used in key-generation and
1666 primality testing to functions that take a new BN_GENCB pointer in
1667 place of callback/argument pairs. The new API functions have "_ex"
1668 postfixes and the older functions are reimplemented as wrappers for
1669 the new ones. The OPENSSL_NO_DEPRECATED symbol can be used to hide
1670 declarations of the old functions to help (graceful) attempts to
1671 migrate to the new functions. Also, the new key-generation API
1672 functions operate on a caller-supplied key-structure and return
1673 success/failure rather than returning a key or NULL - this is to
1674 help make "keygen" another member function of RSA_METHOD etc.
1676 Example for using the new callback interface:
1678 int (*my_callback)(int a, int b, BN_GENCB *cb) = ...;
1682 BN_GENCB_set(&my_cb, my_callback, my_arg);
1684 return BN_is_prime_ex(some_bignum, BN_prime_checks, NULL, &cb);
1685 /* For the meaning of a, b in calls to my_callback(), see the
1686 * documentation of the function that calls the callback.
1687 * cb will point to my_cb; my_arg can be retrieved as cb->arg.
1688 * my_callback should return 1 if it wants BN_is_prime_ex()
1689 * to continue, or 0 to stop.
1694 *) Change the ZLIB compression method to be stateful, and make it
1695 available to TLS with the number defined in
1696 draft-ietf-tls-compression-04.txt.
1699 *) Add the ASN.1 structures and functions for CertificatePair, which
1700 is defined as follows (according to X.509_4thEditionDraftV6.pdf):
1702 CertificatePair ::= SEQUENCE {
1703 forward [0] Certificate OPTIONAL,
1704 reverse [1] Certificate OPTIONAL,
1705 -- at least one of the pair shall be present -- }
1707 Also implement the PEM functions to read and write certificate
1708 pairs, and defined the PEM tag as "CERTIFICATE PAIR".
1710 This needed to be defined, mostly for the sake of the LDAP
1711 attribute crossCertificatePair, but may prove useful elsewhere as
1715 *) Make it possible to inhibit symlinking of shared libraries in
1716 Makefile.shared, for Cygwin's sake.
1719 *) Extend the BIGNUM API by creating a function
1720 void BN_set_negative(BIGNUM *a, int neg);
1721 and a macro that behave like
1722 int BN_is_negative(const BIGNUM *a);
1724 to avoid the need to access 'a->neg' directly in applications.
1727 *) Implement fast modular reduction for pseudo-Mersenne primes
1728 used in NIST curves (crypto/bn/bn_nist.c, crypto/ec/ecp_nist.c).
1729 EC_GROUP_new_curve_GFp() will now automatically use this
1731 [Nils Larsch <nla@trustcenter.de>]
1733 *) Add new lock type (CRYPTO_LOCK_BN).
1736 *) Change the ENGINE framework to automatically load engines
1737 dynamically from specific directories unless they could be
1738 found to already be built in or loaded. Move all the
1739 current engines except for the cryptodev one to a new
1741 The engines in engines/ are built as shared libraries if
1742 the "shared" options was given to ./Configure or ./config.
1743 Otherwise, they are inserted in libcrypto.a.
1744 /usr/local/ssl/engines is the default directory for dynamic
1745 engines, but that can be overriden at configure time through
1746 the usual use of --prefix and/or --openssldir, and at run
1747 time with the environment variable OPENSSL_ENGINES.
1748 [Geoff Thorpe and Richard Levitte]
1750 *) Add Makefile.shared, a helper makefile to build shared
1751 libraries. Addapt Makefile.org.
1754 *) Add version info to Win32 DLLs.
1755 [Peter 'Luna' Runestig" <peter@runestig.com>]
1757 *) Add new 'medium level' PKCS#12 API. Certificates and keys
1758 can be added using this API to created arbitrary PKCS#12
1759 files while avoiding the low level API.
1761 New options to PKCS12_create(), key or cert can be NULL and
1762 will then be omitted from the output file. The encryption
1763 algorithm NIDs can be set to -1 for no encryption, the mac
1764 iteration count can be set to 0 to omit the mac.
1766 Enhance pkcs12 utility by making the -nokeys and -nocerts
1767 options work when creating a PKCS#12 file. New option -nomac
1768 to omit the mac, NONE can be set for an encryption algorithm.
1769 New code is modified to use the enhanced PKCS12_create()
1770 instead of the low level API.
1773 *) Extend ASN1 encoder to support indefinite length constructed
1774 encoding. This can output sequences tags and octet strings in
1775 this form. Modify pk7_asn1.c to support indefinite length
1776 encoding. This is experimental and needs additional code to
1777 be useful, such as an ASN1 bio and some enhanced streaming
1780 Extend template encode functionality so that tagging is passed
1781 down to the template encoder.
1784 *) Let 'openssl req' fail if an argument to '-newkey' is not
1785 recognized instead of using RSA as a default.
1788 *) Add support for ECC-based ciphersuites from draft-ietf-tls-ecc-01.txt.
1789 As these are not official, they are not included in "ALL";
1790 the "ECCdraft" ciphersuite group alias can be used to select them.
1791 [Vipul Gupta and Sumit Gupta (Sun Microsystems Laboratories)]
1793 *) Add ECDH engine support.
1794 [Nils Gura and Douglas Stebila (Sun Microsystems Laboratories)]
1796 *) Add ECDH in new directory crypto/ecdh/.
1797 [Douglas Stebila (Sun Microsystems Laboratories)]
1799 *) Let BN_rand_range() abort with an error after 100 iterations
1800 without success (which indicates a broken PRNG).
1803 *) Change BN_mod_sqrt() so that it verifies that the input value
1804 is really the square of the return value. (Previously,
1805 BN_mod_sqrt would show GIGO behaviour.)
1808 *) Add named elliptic curves over binary fields from X9.62, SECG,
1809 and WAP/WTLS; add OIDs that were still missing.
1811 [Sheueling Chang Shantz and Douglas Stebila
1812 (Sun Microsystems Laboratories)]
1814 *) Extend the EC library for elliptic curves over binary fields
1815 (new files ec2_smpl.c, ec2_smpt.c, ec2_mult.c in crypto/ec/).
1818 EC_GF2m_simple_method
1822 EC_GROUP_new_curve_GF2m
1823 EC_GROUP_set_curve_GF2m
1824 EC_GROUP_get_curve_GF2m
1825 EC_POINT_set_affine_coordinates_GF2m
1826 EC_POINT_get_affine_coordinates_GF2m
1827 EC_POINT_set_compressed_coordinates_GF2m
1829 Point compression for binary fields is disabled by default for
1830 patent reasons (compile with OPENSSL_EC_BIN_PT_COMP defined to
1833 As binary polynomials are represented as BIGNUMs, various members
1834 of the EC_GROUP and EC_POINT data structures can be shared
1835 between the implementations for prime fields and binary fields;
1836 the above ..._GF2m functions (except for EX_GROUP_new_curve_GF2m)
1837 are essentially identical to their ..._GFp counterparts.
1838 (For simplicity, the '..._GFp' prefix has been dropped from
1839 various internal method names.)
1841 An internal 'field_div' method (similar to 'field_mul' and
1842 'field_sqr') has been added; this is used only for binary fields.
1844 [Sheueling Chang Shantz and Douglas Stebila
1845 (Sun Microsystems Laboratories)]
1847 *) Optionally dispatch EC_POINT_mul(), EC_POINT_precompute_mult()
1848 through methods ('mul', 'precompute_mult').
1850 The generic implementations (now internally called 'ec_wNAF_mul'
1851 and 'ec_wNAF_precomputed_mult') remain the default if these
1852 methods are undefined.
1854 [Sheueling Chang Shantz and Douglas Stebila
1855 (Sun Microsystems Laboratories)]
1857 *) New function EC_GROUP_get_degree, which is defined through
1858 EC_METHOD. For curves over prime fields, this returns the bit
1859 length of the modulus.
1861 [Sheueling Chang Shantz and Douglas Stebila
1862 (Sun Microsystems Laboratories)]
1864 *) New functions EC_GROUP_dup, EC_POINT_dup.
1865 (These simply call ..._new and ..._copy).
1867 [Sheueling Chang Shantz and Douglas Stebila
1868 (Sun Microsystems Laboratories)]
1870 *) Add binary polynomial arithmetic software in crypto/bn/bn_gf2m.c.
1871 Polynomials are represented as BIGNUMs (where the sign bit is not
1872 used) in the following functions [macros]:
1875 BN_GF2m_sub [= BN_GF2m_add]
1876 BN_GF2m_mod [wrapper for BN_GF2m_mod_arr]
1877 BN_GF2m_mod_mul [wrapper for BN_GF2m_mod_mul_arr]
1878 BN_GF2m_mod_sqr [wrapper for BN_GF2m_mod_sqr_arr]
1880 BN_GF2m_mod_exp [wrapper for BN_GF2m_mod_exp_arr]
1881 BN_GF2m_mod_sqrt [wrapper for BN_GF2m_mod_sqrt_arr]
1882 BN_GF2m_mod_solve_quad [wrapper for BN_GF2m_mod_solve_quad_arr]
1883 BN_GF2m_cmp [= BN_ucmp]
1885 (Note that only the 'mod' functions are actually for fields GF(2^m).
1886 BN_GF2m_add() is misnomer, but this is for the sake of consistency.)
1888 For some functions, an the irreducible polynomial defining a
1889 field can be given as an 'unsigned int[]' with strictly
1890 decreasing elements giving the indices of those bits that are set;
1891 i.e., p[] represents the polynomial
1892 f(t) = t^p[0] + t^p[1] + ... + t^p[k]
1894 p[0] > p[1] > ... > p[k] = 0.
1895 This applies to the following functions:
1900 BN_GF2m_mod_inv_arr [wrapper for BN_GF2m_mod_inv]
1901 BN_GF2m_mod_div_arr [wrapper for BN_GF2m_mod_div]
1903 BN_GF2m_mod_sqrt_arr
1904 BN_GF2m_mod_solve_quad_arr
1908 Conversion can be performed by the following functions:
1913 bntest.c has additional tests for binary polynomial arithmetic.
1915 Two implementations for BN_GF2m_mod_div() are available.
1916 The default algorithm simply uses BN_GF2m_mod_inv() and
1917 BN_GF2m_mod_mul(). The alternative algorithm is compiled in only
1918 if OPENSSL_SUN_GF2M_DIV is defined (patent pending; read the
1919 copyright notice in crypto/bn/bn_gf2m.c before enabling it).
1921 [Sheueling Chang Shantz and Douglas Stebila
1922 (Sun Microsystems Laboratories)]
1924 *) Add new error code 'ERR_R_DISABLED' that can be used when some
1925 functionality is disabled at compile-time.
1926 [Douglas Stebila <douglas.stebila@sun.com>]
1928 *) Change default behaviour of 'openssl asn1parse' so that more
1929 information is visible when viewing, e.g., a certificate:
1931 Modify asn1_parse2 (crypto/asn1/asn1_par.c) so that in non-'dump'
1932 mode the content of non-printable OCTET STRINGs is output in a
1933 style similar to INTEGERs, but with '[HEX DUMP]' prepended to
1934 avoid the appearance of a printable string.
1935 [Nils Larsch <nla@trustcenter.de>]
1937 *) Add 'asn1_flag' and 'asn1_form' member to EC_GROUP with access
1939 EC_GROUP_set_asn1_flag()
1940 EC_GROUP_get_asn1_flag()
1941 EC_GROUP_set_point_conversion_form()
1942 EC_GROUP_get_point_conversion_form()
1943 These control ASN1 encoding details:
1944 - Curves (i.e., groups) are encoded explicitly unless asn1_flag
1945 has been set to OPENSSL_EC_NAMED_CURVE.
1946 - Points are encoded in uncompressed form by default; options for
1947 asn1_for are as for point2oct, namely
1948 POINT_CONVERSION_COMPRESSED
1949 POINT_CONVERSION_UNCOMPRESSED
1950 POINT_CONVERSION_HYBRID
1952 Also add 'seed' and 'seed_len' members to EC_GROUP with access
1955 EC_GROUP_get0_seed()
1956 EC_GROUP_get_seed_len()
1957 This is used only for ASN1 purposes (so far).
1958 [Nils Larsch <nla@trustcenter.de>]
1960 *) Add 'field_type' member to EC_METHOD, which holds the NID
1961 of the appropriate field type OID. The new function
1962 EC_METHOD_get_field_type() returns this value.
1963 [Nils Larsch <nla@trustcenter.de>]
1968 EC_POINT_point2hex()
1969 EC_POINT_hex2point()
1970 providing useful interfaces to EC_POINT_point2oct() and
1971 EC_POINT_oct2point().
1972 [Nils Larsch <nla@trustcenter.de>]
1974 *) Change internals of the EC library so that the functions
1975 EC_GROUP_set_generator()
1976 EC_GROUP_get_generator()
1977 EC_GROUP_get_order()
1978 EC_GROUP_get_cofactor()
1979 are implemented directly in crypto/ec/ec_lib.c and not dispatched
1980 to methods, which would lead to unnecessary code duplication when
1981 adding different types of curves.
1982 [Nils Larsch <nla@trustcenter.de> with input by Bodo Moeller]
1984 *) Implement compute_wNAF (crypto/ec/ec_mult.c) without BIGNUM
1985 arithmetic, and such that modified wNAFs are generated
1986 (which avoid length expansion in many cases).
1989 *) Add a function EC_GROUP_check_discriminant() (defined via
1990 EC_METHOD) that verifies that the curve discriminant is non-zero.
1992 Add a function EC_GROUP_check() that makes some sanity tests
1993 on a EC_GROUP, its generator and order. This includes
1994 EC_GROUP_check_discriminant().
1995 [Nils Larsch <nla@trustcenter.de>]
1997 *) Add ECDSA in new directory crypto/ecdsa/.
1999 Add applications 'openssl ecparam' and 'openssl ecdsa'
2000 (these are based on 'openssl dsaparam' and 'openssl dsa').
2002 ECDSA support is also included in various other files across the
2003 library. Most notably,
2004 - 'openssl req' now has a '-newkey ecdsa:file' option;
2005 - EVP_PKCS82PKEY (crypto/evp/evp_pkey.c) now can handle ECDSA;
2006 - X509_PUBKEY_get (crypto/asn1/x_pubkey.c) and
2007 d2i_PublicKey (crypto/asn1/d2i_pu.c) have been modified to make
2008 them suitable for ECDSA where domain parameters must be
2009 extracted before the specific public key;
2010 - ECDSA engine support has been added.
2011 [Nils Larsch <nla@trustcenter.de>]
2013 *) Include some named elliptic curves, and add OIDs from X9.62,
2014 SECG, and WAP/WTLS. Each curve can be obtained from the new
2016 EC_GROUP_new_by_curve_name(),
2017 and the list of available named curves can be obtained with
2018 EC_get_builtin_curves().
2019 Also add a 'curve_name' member to EC_GROUP objects, which can be
2021 EC_GROUP_set_curve_name()
2022 EC_GROUP_get_curve_name()
2023 [Nils Larsch <larsch@trustcenter.de, Bodo Moeller]
2025 *) Remove a few calls to bn_wexpand() in BN_sqr() (the one in there
2026 was actually never needed) and in BN_mul(). The removal in BN_mul()
2027 required a small change in bn_mul_part_recursive() and the addition
2028 of the functions bn_cmp_part_words(), bn_sub_part_words() and
2029 bn_add_part_words(), which do the same thing as bn_cmp_words(),
2030 bn_sub_words() and bn_add_words() except they take arrays with
2034 Changes between 0.9.7m and 0.9.7n [xx XXX xxxx]
2036 *) In the SSL/TLS server implementation, be strict about session ID
2037 context matching (which matters if an application uses a single
2038 external cache for different purposes). Previously,
2039 out-of-context reuse was forbidden only if SSL_VERIFY_PEER was
2040 set. This did ensure strict client verification, but meant that,
2041 with applications using a single external cache for quite
2042 different requirements, clients could circumvent ciphersuite
2043 restrictions for a given session ID context by starting a session
2044 in a different context.
2047 Changes between 0.9.7l and 0.9.7m [23 Feb 2007]
2049 *) Cleanse PEM buffers before freeing them since they may contain
2051 [Benjamin Bennett <ben@psc.edu>]
2053 *) Include "!eNULL" in SSL_DEFAULT_CIPHER_LIST to make sure that
2054 a ciphersuite string such as "DEFAULT:RSA" cannot enable
2055 authentication-only ciphersuites.
2058 *) Since AES128 and AES256 share a single mask bit in the logic of
2059 ssl/ssl_ciph.c, the code for masking out disabled ciphers needs a
2060 kludge to work properly if AES128 is available and AES256 isn't.
2063 *) Expand security boundary to match 1.1.1 module.
2066 *) Remove redundant features: hash file source, editing of test vectors
2067 modify fipsld to use external fips_premain.c signature.
2070 *) New perl script mkfipsscr.pl to create shell scripts or batch files to
2071 run algorithm test programs.
2074 *) Make algorithm test programs more tolerant of whitespace.
2077 *) Have SSL/TLS server implementation tolerate "mismatched" record
2078 protocol version while receiving ClientHello even if the
2079 ClientHello is fragmented. (The server can't insist on the
2080 particular protocol version it has chosen before the ServerHello
2081 message has informed the client about his choice.)
2084 *) Load error codes if they are not already present instead of using a
2085 static variable. This allows them to be cleanly unloaded and reloaded.
2088 Changes between 0.9.7k and 0.9.7l [28 Sep 2006]
2090 *) Introduce limits to prevent malicious keys being able to
2091 cause a denial of service. (CVE-2006-2940)
2092 [Steve Henson, Bodo Moeller]
2094 *) Fix ASN.1 parsing of certain invalid structures that can result
2095 in a denial of service. (CVE-2006-2937) [Steve Henson]
2097 *) Fix buffer overflow in SSL_get_shared_ciphers() function.
2098 (CVE-2006-3738) [Tavis Ormandy and Will Drewry, Google Security Team]
2100 *) Fix SSL client code which could crash if connecting to a
2101 malicious SSLv2 server. (CVE-2006-4343)
2102 [Tavis Ormandy and Will Drewry, Google Security Team]
2104 *) Change ciphersuite string processing so that an explicit
2105 ciphersuite selects this one ciphersuite (so that "AES256-SHA"
2106 will no longer include "AES128-SHA"), and any other similar
2107 ciphersuite (same bitmap) from *other* protocol versions (so that
2108 "RC4-MD5" will still include both the SSL 2.0 ciphersuite and the
2109 SSL 3.0/TLS 1.0 ciphersuite). This is a backport combining
2110 changes from 0.9.8b and 0.9.8d.
2113 Changes between 0.9.7j and 0.9.7k [05 Sep 2006]
2115 *) Avoid PKCS #1 v1.5 signature attack discovered by Daniel Bleichenbacher
2116 (CVE-2006-4339) [Ben Laurie and Google Security Team]
2118 *) Change the Unix randomness entropy gathering to use poll() when
2119 possible instead of select(), since the latter has some
2120 undesirable limitations.
2121 [Darryl Miles via Richard Levitte and Bodo Moeller]
2123 *) Disable rogue ciphersuites:
2125 - SSLv2 0x08 0x00 0x80 ("RC4-64-MD5")
2126 - SSLv3/TLSv1 0x00 0x61 ("EXP1024-RC2-CBC-MD5")
2127 - SSLv3/TLSv1 0x00 0x60 ("EXP1024-RC4-MD5")
2129 The latter two were purportedly from
2130 draft-ietf-tls-56-bit-ciphersuites-0[01].txt, but do not really
2133 Also deactive the remaining ciphersuites from
2134 draft-ietf-tls-56-bit-ciphersuites-01.txt. These are just as
2135 unofficial, and the ID has long expired.
2138 *) Fix RSA blinding Heisenbug (problems sometimes occured on
2139 dual-core machines) and other potential thread-safety issues.
2142 Changes between 0.9.7i and 0.9.7j [04 May 2006]
2144 *) Adapt fipsld and the build system to link against the validated FIPS
2145 module in FIPS mode.
2148 *) Fixes for VC++ 2005 build under Windows.
2151 *) Add new Windows build target VC-32-GMAKE for VC++. This uses GNU make
2152 from a Windows bash shell such as MSYS. It is autodetected from the
2153 "config" script when run from a VC++ environment. Modify standard VC++
2154 build to use fipscanister.o from the GNU make build.
2157 Changes between 0.9.7h and 0.9.7i [14 Oct 2005]
2159 *) Wrapped the definition of EVP_MAX_MD_SIZE in a #ifdef OPENSSL_FIPS.
2160 The value now differs depending on if you build for FIPS or not.
2161 BEWARE! A program linked with a shared FIPSed libcrypto can't be
2162 safely run with a non-FIPSed libcrypto, as it may crash because of
2163 the difference induced by this change.
2166 Changes between 0.9.7g and 0.9.7h [11 Oct 2005]
2168 *) Remove the functionality of SSL_OP_MSIE_SSLV2_RSA_PADDING
2169 (part of SSL_OP_ALL). This option used to disable the
2170 countermeasure against man-in-the-middle protocol-version
2171 rollback in the SSL 2.0 server implementation, which is a bad
2172 idea. (CVE-2005-2969)
2174 [Bodo Moeller; problem pointed out by Yutaka Oiwa (Research Center
2175 for Information Security, National Institute of Advanced Industrial
2176 Science and Technology [AIST], Japan)]
2178 *) Minimal support for X9.31 signatures and PSS padding modes. This is
2179 mainly for FIPS compliance and not fully integrated at this stage.
2182 *) For DSA signing, unless DSA_FLAG_NO_EXP_CONSTTIME is set, perform
2183 the exponentiation using a fixed-length exponent. (Otherwise,
2184 the information leaked through timing could expose the secret key
2185 after many signatures; cf. Bleichenbacher's attack on DSA with
2189 *) Make a new fixed-window mod_exp implementation the default for
2190 RSA, DSA, and DH private-key operations so that the sequence of
2191 squares and multiplies and the memory access pattern are
2192 independent of the particular secret key. This will mitigate
2193 cache-timing and potential related attacks.
2195 BN_mod_exp_mont_consttime() is the new exponentiation implementation,
2196 and this is automatically used by BN_mod_exp_mont() if the new flag
2197 BN_FLG_EXP_CONSTTIME is set for the exponent. RSA, DSA, and DH
2198 will use this BN flag for private exponents unless the flag
2199 RSA_FLAG_NO_EXP_CONSTTIME, DSA_FLAG_NO_EXP_CONSTTIME, or
2200 DH_FLAG_NO_EXP_CONSTTIME, respectively, is set.
2202 [Matthew D Wood (Intel Corp), with some changes by Bodo Moeller]
2204 *) Change the client implementation for SSLv23_method() and
2205 SSLv23_client_method() so that is uses the SSL 3.0/TLS 1.0
2206 Client Hello message format if the SSL_OP_NO_SSLv2 option is set.
2207 (Previously, the SSL 2.0 backwards compatible Client Hello
2208 message format would be used even with SSL_OP_NO_SSLv2.)
2211 *) Add support for smime-type MIME parameter in S/MIME messages which some
2215 *) New function BN_MONT_CTX_set_locked() to set montgomery parameters in
2216 a threadsafe manner. Modify rsa code to use new function and add calls
2217 to dsa and dh code (which had race conditions before).
2220 *) Include the fixed error library code in the C error file definitions
2221 instead of fixing them up at runtime. This keeps the error code
2222 structures constant.
2225 Changes between 0.9.7f and 0.9.7g [11 Apr 2005]
2227 [NB: OpenSSL 0.9.7h and later 0.9.7 patch levels were released after
2230 *) Fixes for newer kerberos headers. NB: the casts are needed because
2231 the 'length' field is signed on one version and unsigned on another
2232 with no (?) obvious way to tell the difference, without these VC++
2233 complains. Also the "definition" of FAR (blank) is no longer included
2234 nor is the error ENOMEM. KRB5_PRIVATE has to be set to 1 to pick up
2235 some needed definitions.
2238 *) Undo Cygwin change.
2241 *) Added support for proxy certificates according to RFC 3820.
2242 Because they may be a security thread to unaware applications,
2243 they must be explicitely allowed in run-time. See
2244 docs/HOWTO/proxy_certificates.txt for further information.
2247 Changes between 0.9.7e and 0.9.7f [22 Mar 2005]
2249 *) Use (SSL_RANDOM_VALUE - 4) bytes of pseudo random data when generating
2250 server and client random values. Previously
2251 (SSL_RANDOM_VALUE - sizeof(time_t)) would be used which would result in
2252 less random data when sizeof(time_t) > 4 (some 64 bit platforms).
2254 This change has negligible security impact because:
2256 1. Server and client random values still have 24 bytes of pseudo random
2259 2. Server and client random values are sent in the clear in the initial
2262 3. The master secret is derived using the premaster secret (48 bytes in
2263 size for static RSA ciphersuites) as well as client server and random
2266 The OpenSSL team would like to thank the UK NISCC for bringing this issue
2269 [Stephen Henson, reported by UK NISCC]
2271 *) Use Windows randomness collection on Cygwin.
2274 *) Fix hang in EGD/PRNGD query when communication socket is closed
2275 prematurely by EGD/PRNGD.
2276 [Darren Tucker <dtucker@zip.com.au> via Lutz Jänicke, resolves #1014]
2278 *) Prompt for pass phrases when appropriate for PKCS12 input format.
2281 *) Back-port of selected performance improvements from development
2282 branch, as well as improved support for PowerPC platforms.
2285 *) Add lots of checks for memory allocation failure, error codes to indicate
2286 failure and freeing up memory if a failure occurs.
2287 [Nauticus Networks SSL Team <openssl@nauticusnet.com>, Steve Henson]
2289 *) Add new -passin argument to dgst.
2292 *) Perform some character comparisons of different types in X509_NAME_cmp:
2293 this is needed for some certificates that reencode DNs into UTF8Strings
2294 (in violation of RFC3280) and can't or wont issue name rollover
2298 *) Make an explicit check during certificate validation to see that
2299 the CA setting in each certificate on the chain is correct. As a
2300 side effect always do the following basic checks on extensions,
2301 not just when there's an associated purpose to the check:
2303 - if there is an unhandled critical extension (unless the user
2304 has chosen to ignore this fault)
2305 - if the path length has been exceeded (if one is set at all)
2306 - that certain extensions fit the associated purpose (if one has
2310 Changes between 0.9.7d and 0.9.7e [25 Oct 2004]
2312 *) Avoid a race condition when CRLs are checked in a multi threaded
2313 environment. This would happen due to the reordering of the revoked
2314 entries during signature checking and serial number lookup. Now the
2315 encoding is cached and the serial number sort performed under a lock.
2316 Add new STACK function sk_is_sorted().
2319 *) Add Delta CRL to the extension code.
2322 *) Various fixes to s3_pkt.c so alerts are sent properly.
2323 [David Holmes <d.holmes@f5.com>]
2325 *) Reduce the chances of duplicate issuer name and serial numbers (in
2326 violation of RFC3280) using the OpenSSL certificate creation utilities.
2327 This is done by creating a random 64 bit value for the initial serial
2328 number when a serial number file is created or when a self signed
2329 certificate is created using 'openssl req -x509'. The initial serial
2330 number file is created using 'openssl x509 -next_serial' in CA.pl
2331 rather than being initialized to 1.
2334 Changes between 0.9.7c and 0.9.7d [17 Mar 2004]
2336 *) Fix null-pointer assignment in do_change_cipher_spec() revealed
2337 by using the Codenomicon TLS Test Tool (CVE-2004-0079)
2338 [Joe Orton, Steve Henson]
2340 *) Fix flaw in SSL/TLS handshaking when using Kerberos ciphersuites
2342 [Joe Orton, Steve Henson]
2344 *) Make it possible to have multiple active certificates with the same
2345 subject in the CA index file. This is done only if the keyword
2346 'unique_subject' is set to 'no' in the main CA section (default
2347 if 'CA_default') of the configuration file. The value is saved
2348 with the database itself in a separate index attribute file,
2349 named like the index file with '.attr' appended to the name.
2352 *) X509 verify fixes. Disable broken certificate workarounds when
2353 X509_V_FLAGS_X509_STRICT is set. Check CRL issuer has cRLSign set if
2354 keyUsage extension present. Don't accept CRLs with unhandled critical
2355 extensions: since verify currently doesn't process CRL extensions this
2356 rejects a CRL with *any* critical extensions. Add new verify error codes
2360 *) When creating an OCSP nonce use an OCTET STRING inside the extnValue.
2361 A clarification of RFC2560 will require the use of OCTET STRINGs and
2362 some implementations cannot handle the current raw format. Since OpenSSL
2363 copies and compares OCSP nonces as opaque blobs without any attempt at
2364 parsing them this should not create any compatibility issues.
2367 *) New md flag EVP_MD_CTX_FLAG_REUSE this allows md_data to be reused when
2368 calling EVP_MD_CTX_copy_ex() to avoid calling OPENSSL_malloc(). Without
2369 this HMAC (and other) operations are several times slower than OpenSSL
2373 *) Print out GeneralizedTime and UTCTime in ASN1_STRING_print_ex().
2374 [Peter Sylvester <Peter.Sylvester@EdelWeb.fr>]
2376 *) Use the correct content when signing type "other".
2379 Changes between 0.9.7b and 0.9.7c [30 Sep 2003]
2381 *) Fix various bugs revealed by running the NISCC test suite:
2383 Stop out of bounds reads in the ASN1 code when presented with
2384 invalid tags (CVE-2003-0543 and CVE-2003-0544).
2386 Free up ASN1_TYPE correctly if ANY type is invalid (CVE-2003-0545).
2388 If verify callback ignores invalid public key errors don't try to check
2389 certificate signature with the NULL public key.
2393 *) New -ignore_err option in ocsp application to stop the server
2394 exiting on the first error in a request.
2397 *) In ssl3_accept() (ssl/s3_srvr.c) only accept a client certificate
2398 if the server requested one: as stated in TLS 1.0 and SSL 3.0
2402 *) In ssl3_get_client_hello() (ssl/s3_srvr.c), tolerate additional
2403 extra data after the compression methods not only for TLS 1.0
2404 but also for SSL 3.0 (as required by the specification).
2405 [Bodo Moeller; problem pointed out by Matthias Loepfe]
2407 *) Change X509_certificate_type() to mark the key as exported/exportable
2408 when it's 512 *bits* long, not 512 bytes.
2411 *) Change AES_cbc_encrypt() so it outputs exact multiple of
2412 blocks during encryption.
2415 *) Various fixes to base64 BIO and non blocking I/O. On write
2416 flushes were not handled properly if the BIO retried. On read
2417 data was not being buffered properly and had various logic bugs.
2418 This also affects blocking I/O when the data being decoded is a
2422 *) Various S/MIME bugfixes and compatibility changes:
2423 output correct application/pkcs7 MIME type if
2424 PKCS7_NOOLDMIMETYPE is set. Tolerate some broken signatures.
2425 Output CR+LF for EOL if PKCS7_CRLFEOL is set (this makes opening
2426 of files as .eml work). Correctly handle very long lines in MIME
2430 Changes between 0.9.7a and 0.9.7b [10 Apr 2003]
2432 *) Countermeasure against the Klima-Pokorny-Rosa extension of
2433 Bleichbacher's attack on PKCS #1 v1.5 padding: treat
2434 a protocol version number mismatch like a decryption error
2435 in ssl3_get_client_key_exchange (ssl/s3_srvr.c).
2438 *) Turn on RSA blinding by default in the default implementation
2439 to avoid a timing attack. Applications that don't want it can call
2440 RSA_blinding_off() or use the new flag RSA_FLAG_NO_BLINDING.
2441 They would be ill-advised to do so in most cases.
2442 [Ben Laurie, Steve Henson, Geoff Thorpe, Bodo Moeller]
2444 *) Change RSA blinding code so that it works when the PRNG is not
2445 seeded (in this case, the secret RSA exponent is abused as
2446 an unpredictable seed -- if it is not unpredictable, there
2447 is no point in blinding anyway). Make RSA blinding thread-safe
2448 by remembering the creator's thread ID in rsa->blinding and
2449 having all other threads use local one-time blinding factors
2450 (this requires more computation than sharing rsa->blinding, but
2451 avoids excessive locking; and if an RSA object is not shared
2452 between threads, blinding will still be very fast).
2455 *) Fixed a typo bug that would cause ENGINE_set_default() to set an
2456 ENGINE as defaults for all supported algorithms irrespective of
2457 the 'flags' parameter. 'flags' is now honoured, so applications
2458 should make sure they are passing it correctly.
2461 *) Target "mingw" now allows native Windows code to be generated in
2462 the Cygwin environment as well as with the MinGW compiler.
2465 Changes between 0.9.7 and 0.9.7a [19 Feb 2003]
2467 *) In ssl3_get_record (ssl/s3_pkt.c), minimize information leaked
2468 via timing by performing a MAC computation even if incorrrect
2469 block cipher padding has been found. This is a countermeasure
2470 against active attacks where the attacker has to distinguish
2471 between bad padding and a MAC verification error. (CVE-2003-0078)
2473 [Bodo Moeller; problem pointed out by Brice Canvel (EPFL),
2474 Alain Hiltgen (UBS), Serge Vaudenay (EPFL), and
2475 Martin Vuagnoux (EPFL, Ilion)]
2477 *) Make the no-err option work as intended. The intention with no-err
2478 is not to have the whole error stack handling routines removed from
2479 libcrypto, it's only intended to remove all the function name and
2480 reason texts, thereby removing some of the footprint that may not
2481 be interesting if those errors aren't displayed anyway.
2483 NOTE: it's still possible for any application or module to have it's
2484 own set of error texts inserted. The routines are there, just not
2485 used by default when no-err is given.
2488 *) Add support for FreeBSD on IA64.
2489 [dirk.meyer@dinoex.sub.org via Richard Levitte, resolves #454]
2491 *) Adjust DES_cbc_cksum() so it returns the same value as the MIT
2492 Kerberos function mit_des_cbc_cksum(). Before this change,
2493 the value returned by DES_cbc_cksum() was like the one from
2494 mit_des_cbc_cksum(), except the bytes were swapped.
2495 [Kevin Greaney <Kevin.Greaney@hp.com> and Richard Levitte]
2497 *) Allow an application to disable the automatic SSL chain building.
2498 Before this a rather primitive chain build was always performed in
2499 ssl3_output_cert_chain(): an application had no way to send the
2500 correct chain if the automatic operation produced an incorrect result.
2502 Now the chain builder is disabled if either:
2504 1. Extra certificates are added via SSL_CTX_add_extra_chain_cert().
2506 2. The mode flag SSL_MODE_NO_AUTO_CHAIN is set.
2508 The reasoning behind this is that an application would not want the
2509 auto chain building to take place if extra chain certificates are
2510 present and it might also want a means of sending no additional
2511 certificates (for example the chain has two certificates and the
2515 *) Add the possibility to build without the ENGINE framework.
2516 [Steven Reddie <smr@essemer.com.au> via Richard Levitte]
2518 *) Under Win32 gmtime() can return NULL: check return value in
2519 OPENSSL_gmtime(). Add error code for case where gmtime() fails.
2522 *) DSA routines: under certain error conditions uninitialized BN objects
2523 could be freed. Solution: make sure initialization is performed early
2524 enough. (Reported and fix supplied by Ivan D Nestlerode <nestler@MIT.EDU>,
2525 Nils Larsch <nla@trustcenter.de> via PR#459)
2528 *) Another fix for SSLv2 session ID handling: the session ID was incorrectly
2529 checked on reconnect on the client side, therefore session resumption
2530 could still fail with a "ssl session id is different" error. This
2531 behaviour is masked when SSL_OP_ALL is used due to
2532 SSL_OP_MICROSOFT_SESS_ID_BUG being set.
2533 Behaviour observed by Crispin Flowerday <crispin@flowerday.cx> as
2534 followup to PR #377.
2537 *) IA-32 assembler support enhancements: unified ELF targets, support
2538 for SCO/Caldera platforms, fix for Cygwin shared build.
2541 *) Add support for FreeBSD on sparc64. As a consequence, support for
2542 FreeBSD on non-x86 processors is separate from x86 processors on
2543 the config script, much like the NetBSD support.
2544 [Richard Levitte & Kris Kennaway <kris@obsecurity.org>]
2546 Changes between 0.9.6h and 0.9.7 [31 Dec 2002]
2548 [NB: OpenSSL 0.9.6i and later 0.9.6 patch levels were released after
2551 *) Fix session ID handling in SSLv2 client code: the SERVER FINISHED
2552 code (06) was taken as the first octet of the session ID and the last
2553 octet was ignored consequently. As a result SSLv2 client side session
2554 caching could not have worked due to the session ID mismatch between
2556 Behaviour observed by Crispin Flowerday <crispin@flowerday.cx> as
2560 *) Change the declaration of needed Kerberos libraries to use EX_LIBS
2561 instead of the special (and badly supported) LIBKRB5. LIBKRB5 is
2565 *) The hw_ncipher.c engine requires dynamic locks. Unfortunately, it
2566 seems that in spite of existing for more than a year, many application
2567 author have done nothing to provide the necessary callbacks, which
2568 means that this particular engine will not work properly anywhere.
2569 This is a very unfortunate situation which forces us, in the name
2570 of usability, to give the hw_ncipher.c a static lock, which is part
2572 NOTE: This is for the 0.9.7 series ONLY. This hack will never
2573 appear in 0.9.8 or later. We EXPECT application authors to have
2574 dealt properly with this when 0.9.8 is released (unless we actually
2575 make such changes in the libcrypto locking code that changes will
2576 have to be made anyway).
2579 *) In asn1_d2i_read_bio() repeatedly call BIO_read() until all content
2580 octets have been read, EOF or an error occurs. Without this change
2581 some truncated ASN1 structures will not produce an error.
2584 *) Disable Heimdal support, since it hasn't been fully implemented.
2585 Still give the possibility to force the use of Heimdal, but with
2586 warnings and a request that patches get sent to openssl-dev.
2589 *) Add the VC-CE target, introduce the WINCE sysname, and add
2590 INSTALL.WCE and appropriate conditionals to make it build.
2591 [Steven Reddie <smr@essemer.com.au> via Richard Levitte]
2593 *) Change the DLL names for Cygwin to cygcrypto-x.y.z.dll and
2594 cygssl-x.y.z.dll, where x, y and z are the major, minor and
2595 edit numbers of the version.
2596 [Corinna Vinschen <vinschen@redhat.com> and Richard Levitte]
2598 *) Introduce safe string copy and catenation functions
2599 (BUF_strlcpy() and BUF_strlcat()).
2600 [Ben Laurie (CHATS) and Richard Levitte]
2602 *) Avoid using fixed-size buffers for one-line DNs.
2603 [Ben Laurie (CHATS)]
2605 *) Add BUF_MEM_grow_clean() to avoid information leakage when
2606 resizing buffers containing secrets, and use where appropriate.
2607 [Ben Laurie (CHATS)]
2609 *) Avoid using fixed size buffers for configuration file location.
2610 [Ben Laurie (CHATS)]
2612 *) Avoid filename truncation for various CA files.
2613 [Ben Laurie (CHATS)]
2615 *) Use sizeof in preference to magic numbers.
2616 [Ben Laurie (CHATS)]
2618 *) Avoid filename truncation in cert requests.
2619 [Ben Laurie (CHATS)]
2621 *) Add assertions to check for (supposedly impossible) buffer
2623 [Ben Laurie (CHATS)]
2625 *) Don't cache truncated DNS entries in the local cache (this could
2626 potentially lead to a spoofing attack).
2627 [Ben Laurie (CHATS)]
2629 *) Fix various buffers to be large enough for hex/decimal
2630 representations in a platform independent manner.
2631 [Ben Laurie (CHATS)]
2633 *) Add CRYPTO_realloc_clean() to avoid information leakage when
2634 resizing buffers containing secrets, and use where appropriate.
2635 [Ben Laurie (CHATS)]
2637 *) Add BIO_indent() to avoid much slightly worrying code to do
2639 [Ben Laurie (CHATS)]
2641 *) Convert sprintf()/BIO_puts() to BIO_printf().
2642 [Ben Laurie (CHATS)]
2644 *) buffer_gets() could terminate with the buffer only half
2646 [Ben Laurie (CHATS)]
2648 *) Add assertions to prevent user-supplied crypto functions from
2649 overflowing internal buffers by having large block sizes, etc.
2650 [Ben Laurie (CHATS)]
2652 *) New OPENSSL_assert() macro (similar to assert(), but enabled
2654 [Ben Laurie (CHATS)]
2656 *) Eliminate unused copy of key in RC4.
2657 [Ben Laurie (CHATS)]
2659 *) Eliminate unused and incorrectly sized buffers for IV in pem.h.
2660 [Ben Laurie (CHATS)]
2662 *) Fix off-by-one error in EGD path.
2663 [Ben Laurie (CHATS)]
2665 *) If RANDFILE path is too long, ignore instead of truncating.
2666 [Ben Laurie (CHATS)]
2668 *) Eliminate unused and incorrectly sized X.509 structure
2670 [Ben Laurie (CHATS)]
2672 *) Eliminate unused and dangerous function knumber().
2673 [Ben Laurie (CHATS)]
2675 *) Eliminate unused and dangerous structure, KSSL_ERR.
2676 [Ben Laurie (CHATS)]
2678 *) Protect against overlong session ID context length in an encoded
2679 session object. Since these are local, this does not appear to be
2681 [Ben Laurie (CHATS)]
2683 *) Change from security patch (see 0.9.6e below) that did not affect
2684 the 0.9.6 release series:
2686 Remote buffer overflow in SSL3 protocol - an attacker could
2687 supply an oversized master key in Kerberos-enabled versions.
2689 [Ben Laurie (CHATS)]
2691 *) Change the SSL kerb5 codes to match RFC 2712.
2694 *) Make -nameopt work fully for req and add -reqopt switch.
2695 [Michael Bell <michael.bell@rz.hu-berlin.de>, Steve Henson]
2697 *) The "block size" for block ciphers in CFB and OFB mode should be 1.
2698 [Steve Henson, reported by Yngve Nysaeter Pettersen <yngve@opera.com>]
2700 *) Make sure tests can be performed even if the corresponding algorithms
2701 have been removed entirely. This was also the last step to make
2702 OpenSSL compilable with DJGPP under all reasonable conditions.
2703 [Richard Levitte, Doug Kaufman <dkaufman@rahul.net>]
2705 *) Add cipher selection rules COMPLEMENTOFALL and COMPLEMENTOFDEFAULT
2706 to allow version independent disabling of normally unselected ciphers,
2707 which may be activated as a side-effect of selecting a single cipher.
2709 (E.g., cipher list string "RSA" enables ciphersuites that are left
2710 out of "ALL" because they do not provide symmetric encryption.
2711 "RSA:!COMPLEMEMENTOFALL" avoids these unsafe ciphersuites.)
2712 [Lutz Jaenicke, Bodo Moeller]
2714 *) Add appropriate support for separate platform-dependent build
2715 directories. The recommended way to make a platform-dependent
2716 build directory is the following (tested on Linux), maybe with
2719 # Place yourself outside of the OpenSSL source tree. In
2720 # this example, the environment variable OPENSSL_SOURCE
2721 # is assumed to contain the absolute OpenSSL source directory.
2722 mkdir -p objtree/"`uname -s`-`uname -r`-`uname -m`"
2723 cd objtree/"`uname -s`-`uname -r`-`uname -m`"
2724 (cd $OPENSSL_SOURCE; find . -type f) | while read F; do
2725 mkdir -p `dirname $F`
2726 ln -s $OPENSSL_SOURCE/$F $F
2729 To be absolutely sure not to disturb the source tree, a "make clean"
2730 is a good thing. If it isn't successfull, don't worry about it,
2731 it probably means the source directory is very clean.
2734 *) Make sure any ENGINE control commands make local copies of string
2735 pointers passed to them whenever necessary. Otherwise it is possible
2736 the caller may have overwritten (or deallocated) the original string
2737 data when a later ENGINE operation tries to use the stored values.
2738 [Götz Babin-Ebell <babinebell@trustcenter.de>]
2740 *) Improve diagnostics in file reading and command-line digests.
2741 [Ben Laurie aided and abetted by Solar Designer <solar@openwall.com>]
2743 *) Add AES modes CFB and OFB to the object database. Correct an
2744 error in AES-CFB decryption.
2747 *) Remove most calls to EVP_CIPHER_CTX_cleanup() in evp_enc.c, this
2748 allows existing EVP_CIPHER_CTX structures to be reused after
2749 calling EVP_*Final(). This behaviour is used by encryption
2750 BIOs and some applications. This has the side effect that
2751 applications must explicitly clean up cipher contexts with
2752 EVP_CIPHER_CTX_cleanup() or they will leak memory.
2755 *) Check the values of dna and dnb in bn_mul_recursive before calling
2756 bn_mul_comba (a non zero value means the a or b arrays do not contain
2757 n2 elements) and fallback to bn_mul_normal if either is not zero.
2760 *) Fix escaping of non-ASCII characters when using the -subj option
2761 of the "openssl req" command line tool. (Robert Joop <joop@fokus.gmd.de>)
2764 *) Make object definitions compliant to LDAP (RFC2256): SN is the short
2765 form for "surname", serialNumber has no short form.
2766 Use "mail" as the short name for "rfc822Mailbox" according to RFC2798;
2767 therefore remove "mail" short name for "internet 7".
2768 The OID for unique identifiers in X509 certificates is
2769 x500UniqueIdentifier, not uniqueIdentifier.
2770 Some more OID additions. (Michael Bell <michael.bell@rz.hu-berlin.de>)
2773 *) Add an "init" command to the ENGINE config module and auto initialize
2774 ENGINEs. Without any "init" command the ENGINE will be initialized
2775 after all ctrl commands have been executed on it. If init=1 the
2776 ENGINE is initailized at that point (ctrls before that point are run
2777 on the uninitialized ENGINE and after on the initialized one). If
2778 init=0 then the ENGINE will not be iniatialized at all.
2781 *) Fix the 'app_verify_callback' interface so that the user-defined
2782 argument is actually passed to the callback: In the
2783 SSL_CTX_set_cert_verify_callback() prototype, the callback
2784 declaration has been changed from
2787 int (*cb)(X509_STORE_CTX *,void *);
2788 in ssl_verify_cert_chain (ssl/ssl_cert.c), the call
2789 i=s->ctx->app_verify_callback(&ctx)
2790 has been changed into
2791 i=s->ctx->app_verify_callback(&ctx, s->ctx->app_verify_arg).
2793 To update applications using SSL_CTX_set_cert_verify_callback(),
2794 a dummy argument can be added to their callback functions.
2795 [D. K. Smetters <smetters@parc.xerox.com>]
2797 *) Added the '4758cca' ENGINE to support IBM 4758 cards.
2798 [Maurice Gittens <maurice@gittens.nl>, touchups by Geoff Thorpe]
2800 *) Add and OPENSSL_LOAD_CONF define which will cause
2801 OpenSSL_add_all_algorithms() to load the openssl.cnf config file.
2802 This allows older applications to transparently support certain
2803 OpenSSL features: such as crypto acceleration and dynamic ENGINE loading.
2804 Two new functions OPENSSL_add_all_algorithms_noconf() which will never
2805 load the config file and OPENSSL_add_all_algorithms_conf() which will
2806 always load it have also been added.
2809 *) Add the OFB, CFB and CTR (all with 128 bit feedback) to AES.
2810 Adjust NIDs and EVP layer.
2811 [Stephen Sprunk <stephen@sprunk.org> and Richard Levitte]
2813 *) Config modules support in openssl utility.
2815 Most commands now load modules from the config file,
2816 though in a few (such as version) this isn't done
2817 because it couldn't be used for anything.
2819 In the case of ca and req the config file used is
2820 the same as the utility itself: that is the -config
2821 command line option can be used to specify an
2825 *) Move default behaviour from OPENSSL_config(). If appname is NULL
2826 use "openssl_conf" if filename is NULL use default openssl config file.
2829 *) Add an argument to OPENSSL_config() to allow the use of an alternative
2830 config section name. Add a new flag to tolerate a missing config file
2831 and move code to CONF_modules_load_file().
2834 *) Support for crypto accelerator cards from Accelerated Encryption
2835 Processing, www.aep.ie. (Use engine 'aep')
2836 The support was copied from 0.9.6c [engine] and adapted/corrected
2837 to work with the new engine framework.
2838 [AEP Inc. and Richard Levitte]
2840 *) Support for SureWare crypto accelerator cards from Baltimore
2841 Technologies. (Use engine 'sureware')
2842 The support was copied from 0.9.6c [engine] and adapted
2843 to work with the new engine framework.
2846 *) Have the CHIL engine fork-safe (as defined by nCipher) and actually
2847 make the newer ENGINE framework commands for the CHIL engine work.
2848 [Toomas Kiisk <vix@cyber.ee> and Richard Levitte]
2850 *) Make it possible to produce shared libraries on ReliantUNIX.
2851 [Robert Dahlem <Robert.Dahlem@ffm2.siemens.de> via Richard Levitte]
2853 *) Add the configuration target debug-linux-ppro.
2854 Make 'openssl rsa' use the general key loading routines
2855 implemented in apps.c, and make those routines able to
2856 handle the key format FORMAT_NETSCAPE and the variant
2858 [Toomas Kiisk <vix@cyber.ee> via Richard Levitte]
2860 *) Fix a crashbug and a logic bug in hwcrhk_load_pubkey().
2861 [Toomas Kiisk <vix@cyber.ee> via Richard Levitte]
2863 *) Add -keyform to rsautl, and document -engine.
2864 [Richard Levitte, inspired by Toomas Kiisk <vix@cyber.ee>]
2866 *) Change BIO_new_file (crypto/bio/bss_file.c) to use new
2867 BIO_R_NO_SUCH_FILE error code rather than the generic
2868 ERR_R_SYS_LIB error code if fopen() fails with ENOENT.
2871 *) Add new functions
2873 ERR_peek_last_error_line
2874 ERR_peek_last_error_line_data.
2875 These are similar to
2878 ERR_peek_error_line_data,
2879 but report on the latest error recorded rather than the first one
2880 still in the error queue.
2881 [Ben Laurie, Bodo Moeller]
2883 *) default_algorithms option in ENGINE config module. This allows things
2885 default_algorithms = ALL
2886 default_algorithms = RSA, DSA, RAND, CIPHERS, DIGESTS
2889 *) Prelminary ENGINE config module.
2892 *) New experimental application configuration code.
2895 *) Change the AES code to follow the same name structure as all other
2896 symmetric ciphers, and behave the same way. Move everything to
2897 the directory crypto/aes, thereby obsoleting crypto/rijndael.
2898 [Stephen Sprunk <stephen@sprunk.org> and Richard Levitte]
2900 *) SECURITY: remove unsafe setjmp/signal interaction from ui_openssl.c.
2901 [Ben Laurie and Theo de Raadt]
2903 *) Add option to output public keys in req command.
2904 [Massimiliano Pala madwolf@openca.org]
2906 *) Use wNAFs in EC_POINTs_mul() for improved efficiency
2907 (up to about 10% better than before for P-192 and P-224).
2910 *) New functions/macros
2912 SSL_CTX_set_msg_callback(ctx, cb)
2913 SSL_CTX_set_msg_callback_arg(ctx, arg)
2914 SSL_set_msg_callback(ssl, cb)
2915 SSL_set_msg_callback_arg(ssl, arg)
2917 to request calling a callback function
2919 void cb(int write_p, int version, int content_type,
2920 const void *buf, size_t len, SSL *ssl, void *arg)
2922 whenever a protocol message has been completely received
2923 (write_p == 0) or sent (write_p == 1). Here 'version' is the
2924 protocol version according to which the SSL library interprets
2925 the current protocol message (SSL2_VERSION, SSL3_VERSION, or
2926 TLS1_VERSION). 'content_type' is 0 in the case of SSL 2.0, or
2927 the content type as defined in the SSL 3.0/TLS 1.0 protocol
2928 specification (change_cipher_spec(20), alert(21), handshake(22)).
2929 'buf' and 'len' point to the actual message, 'ssl' to the
2930 SSL object, and 'arg' is the application-defined value set by
2931 SSL[_CTX]_set_msg_callback_arg().
2933 'openssl s_client' and 'openssl s_server' have new '-msg' options
2934 to enable a callback that displays all protocol messages.
2937 *) Change the shared library support so shared libraries are built as
2938 soon as the corresponding static library is finished, and thereby get
2939 openssl and the test programs linked against the shared library.
2940 This still only happens when the keyword "shard" has been given to
2941 the configuration scripts.
2943 NOTE: shared library support is still an experimental thing, and
2944 backward binary compatibility is still not guaranteed.
2945 ["Maciej W. Rozycki" <macro@ds2.pg.gda.pl> and Richard Levitte]
2947 *) Add support for Subject Information Access extension.
2948 [Peter Sylvester <Peter.Sylvester@EdelWeb.fr>]
2950 *) Make BUF_MEM_grow() behaviour more consistent: Initialise to zero
2951 additional bytes when new memory had to be allocated, not just
2952 when reusing an existing buffer.
2955 *) New command line and configuration option 'utf8' for the req command.
2956 This allows field values to be specified as UTF8 strings.
2959 *) Add -multi and -mr options to "openssl speed" - giving multiple parallel
2960 runs for the former and machine-readable output for the latter.
2963 *) Add '-noemailDN' option to 'openssl ca'. This prevents inclusion
2964 of the e-mail address in the DN (i.e., it will go into a certificate
2965 extension only). The new configuration file option 'email_in_dn = no'
2966 has the same effect.
2967 [Massimiliano Pala madwolf@openca.org]
2969 *) Change all functions with names starting with des_ to be starting
2970 with DES_ instead. Add wrappers that are compatible with libdes,
2971 but are named _ossl_old_des_*. Finally, add macros that map the
2972 des_* symbols to the corresponding _ossl_old_des_* if libdes
2973 compatibility is desired. If OpenSSL 0.9.6c compatibility is
2974 desired, the des_* symbols will be mapped to DES_*, with one
2977 Since we provide two compatibility mappings, the user needs to
2978 define the macro OPENSSL_DES_LIBDES_COMPATIBILITY if libdes
2979 compatibility is desired. The default (i.e., when that macro
2980 isn't defined) is OpenSSL 0.9.6c compatibility.
2982 There are also macros that enable and disable the support of old
2983 des functions altogether. Those are OPENSSL_ENABLE_OLD_DES_SUPPORT
2984 and OPENSSL_DISABLE_OLD_DES_SUPPORT. If none or both of those
2985 are defined, the default will apply: to support the old des routines.
2987 In either case, one must include openssl/des.h to get the correct
2988 definitions. Do not try to just include openssl/des_old.h, that
2991 NOTE: This is a major break of an old API into a new one. Software
2992 authors are encouraged to switch to the DES_ style functions. Some
2993 time in the future, des_old.h and the libdes compatibility functions
2994 will be disable (i.e. OPENSSL_DISABLE_OLD_DES_SUPPORT will be the
2995 default), and then completely removed.
2998 *) Test for certificates which contain unsupported critical extensions.
2999 If such a certificate is found during a verify operation it is
3000 rejected by default: this behaviour can be overridden by either
3001 handling the new error X509_V_ERR_UNHANDLED_CRITICAL_EXTENSION or
3002 by setting the verify flag X509_V_FLAG_IGNORE_CRITICAL. A new function
3003 X509_supported_extension() has also been added which returns 1 if a
3004 particular extension is supported.
3007 *) Modify the behaviour of EVP cipher functions in similar way to digests
3008 to retain compatibility with existing code.
3011 *) Modify the behaviour of EVP_DigestInit() and EVP_DigestFinal() to retain
3012 compatibility with existing code. In particular the 'ctx' parameter does
3013 not have to be to be initialized before the call to EVP_DigestInit() and
3014 it is tidied up after a call to EVP_DigestFinal(). New function
3015 EVP_DigestFinal_ex() which does not tidy up the ctx. Similarly function
3016 EVP_MD_CTX_copy() changed to not require the destination to be
3017 initialized valid and new function EVP_MD_CTX_copy_ex() added which
3018 requires the destination to be valid.
3020 Modify all the OpenSSL digest calls to use EVP_DigestInit_ex(),
3021 EVP_DigestFinal_ex() and EVP_MD_CTX_copy_ex().
3024 *) Change ssl3_get_message (ssl/s3_both.c) and the functions using it
3025 so that complete 'Handshake' protocol structures are kept in memory
3026 instead of overwriting 'msg_type' and 'length' with 'body' data.
3029 *) Add an implementation of SSL_add_dir_cert_subjects_to_stack for Win32.
3030 [Massimo Santin via Richard Levitte]
3032 *) Major restructuring to the underlying ENGINE code. This includes
3033 reduction of linker bloat, separation of pure "ENGINE" manipulation
3034 (initialisation, etc) from functionality dealing with implementations
3035 of specific crypto iterfaces. This change also introduces integrated
3036 support for symmetric ciphers and digest implementations - so ENGINEs
3037 can now accelerate these by providing EVP_CIPHER and EVP_MD
3038 implementations of their own. This is detailed in crypto/engine/README
3039 as it couldn't be adequately described here. However, there are a few
3040 API changes worth noting - some RSA, DSA, DH, and RAND functions that
3041 were changed in the original introduction of ENGINE code have now
3042 reverted back - the hooking from this code to ENGINE is now a good
3043 deal more passive and at run-time, operations deal directly with
3044 RSA_METHODs, DSA_METHODs (etc) as they did before, rather than
3045 dereferencing through an ENGINE pointer any more. Also, the ENGINE
3046 functions dealing with BN_MOD_EXP[_CRT] handlers have been removed -
3047 they were not being used by the framework as there is no concept of a
3048 BIGNUM_METHOD and they could not be generalised to the new
3049 'ENGINE_TABLE' mechanism that underlies the new code. Similarly,
3050 ENGINE_cpy() has been removed as it cannot be consistently defined in
3054 *) Change ASN1_GENERALIZEDTIME_check() to allow fractional seconds.
3057 *) Change mkdef.pl to sort symbols that get the same entry number,
3058 and make sure the automatically generated functions ERR_load_*
3059 become part of libeay.num as well.
3062 *) New function SSL_renegotiate_pending(). This returns true once
3063 renegotiation has been requested (either SSL_renegotiate() call
3064 or HelloRequest/ClientHello receveived from the peer) and becomes
3065 false once a handshake has been completed.
3066 (For servers, SSL_renegotiate() followed by SSL_do_handshake()
3067 sends a HelloRequest, but does not ensure that a handshake takes
3068 place. SSL_renegotiate_pending() is useful for checking if the
3069 client has followed the request.)
3072 *) New SSL option SSL_OP_NO_SESSION_RESUMPTION_ON_RENEGOTIATION.
3073 By default, clients may request session resumption even during
3074 renegotiation (if session ID contexts permit); with this option,
3075 session resumption is possible only in the first handshake.
3077 SSL_OP_ALL is now 0x00000FFFL instead of 0x000FFFFFL. This makes
3078 more bits available for options that should not be part of
3079 SSL_OP_ALL (such as SSL_OP_NO_SESSION_RESUMPTION_ON_RENEGOTIATION).
3082 *) Add some demos for certificate and certificate request creation.
3085 *) Make maximum certificate chain size accepted from the peer application
3086 settable (SSL*_get/set_max_cert_list()), as proposed by
3087 "Douglas E. Engert" <deengert@anl.gov>.
3090 *) Add support for shared libraries for Unixware-7
3091 (Boyd Lynn Gerber <gerberb@zenez.com>).
3094 *) Add a "destroy" handler to ENGINEs that allows structural cleanup to
3095 be done prior to destruction. Use this to unload error strings from
3096 ENGINEs that load their own error strings. NB: This adds two new API
3097 functions to "get" and "set" this destroy handler in an ENGINE.
3100 *) Alter all existing ENGINE implementations (except "openssl" and
3101 "openbsd") to dynamically instantiate their own error strings. This
3102 makes them more flexible to be built both as statically-linked ENGINEs
3103 and self-contained shared-libraries loadable via the "dynamic" ENGINE.
3104 Also, add stub code to each that makes building them as self-contained
3105 shared-libraries easier (see README.ENGINE).
3108 *) Add a "dynamic" ENGINE that provides a mechanism for binding ENGINE
3109 implementations into applications that are completely implemented in
3110 self-contained shared-libraries. The "dynamic" ENGINE exposes control
3111 commands that can be used to configure what shared-library to load and
3112 to control aspects of the way it is handled. Also, made an update to
3113 the README.ENGINE file that brings its information up-to-date and
3114 provides some information and instructions on the "dynamic" ENGINE
3115 (ie. how to use it, how to build "dynamic"-loadable ENGINEs, etc).
3118 *) Make it possible to unload ranges of ERR strings with a new
3119 "ERR_unload_strings" function.
3122 *) Add a copy() function to EVP_MD.
3125 *) Make EVP_MD routines take a context pointer instead of just the
3126 md_data void pointer.
3129 *) Add flags to EVP_MD and EVP_MD_CTX. EVP_MD_FLAG_ONESHOT indicates
3130 that the digest can only process a single chunk of data
3131 (typically because it is provided by a piece of
3132 hardware). EVP_MD_CTX_FLAG_ONESHOT indicates that the application
3133 is only going to provide a single chunk of data, and hence the
3134 framework needn't accumulate the data for oneshot drivers.
3137 *) As with "ERR", make it possible to replace the underlying "ex_data"
3138 functions. This change also alters the storage and management of global
3139 ex_data state - it's now all inside ex_data.c and all "class" code (eg.
3140 RSA, BIO, SSL_CTX, etc) no longer stores its own STACKS and per-class
3141 index counters. The API functions that use this state have been changed
3142 to take a "class_index" rather than pointers to the class's local STACK
3143 and counter, and there is now an API function to dynamically create new
3144 classes. This centralisation allows us to (a) plug a lot of the
3145 thread-safety problems that existed, and (b) makes it possible to clean
3146 up all allocated state using "CRYPTO_cleanup_all_ex_data()". W.r.t. (b)
3147 such data would previously have always leaked in application code and
3148 workarounds were in place to make the memory debugging turn a blind eye
3149 to it. Application code that doesn't use this new function will still
3150 leak as before, but their memory debugging output will announce it now
3151 rather than letting it slide.
3153 Besides the addition of CRYPTO_cleanup_all_ex_data(), another API change
3154 induced by the "ex_data" overhaul is that X509_STORE_CTX_init() now
3155 has a return value to indicate success or failure.
3158 *) Make it possible to replace the underlying "ERR" functions such that the
3159 global state (2 LHASH tables and 2 locks) is only used by the "default"
3160 implementation. This change also adds two functions to "get" and "set"
3161 the implementation prior to it being automatically set the first time
3162 any other ERR function takes place. Ie. an application can call "get",
3163 pass the return value to a module it has just loaded, and that module
3164 can call its own "set" function using that value. This means the
3165 module's "ERR" operations will use (and modify) the error state in the
3166 application and not in its own statically linked copy of OpenSSL code.
3169 *) Give DH, DSA, and RSA types their own "**_up_ref()" function to increment
3170 reference counts. This performs normal REF_PRINT/REF_CHECK macros on
3171 the operation, and provides a more encapsulated way for external code
3172 (crypto/evp/ and ssl/) to do this. Also changed the evp and ssl code
3173 to use these functions rather than manually incrementing the counts.
3175 Also rename "DSO_up()" function to more descriptive "DSO_up_ref()".
3178 *) Add EVP test program.
3181 *) Add symmetric cipher support to ENGINE. Expect the API to change!
3184 *) New CRL functions: X509_CRL_set_version(), X509_CRL_set_issuer_name()
3185 X509_CRL_set_lastUpdate(), X509_CRL_set_nextUpdate(), X509_CRL_sort(),
3186 X509_REVOKED_set_serialNumber(), and X509_REVOKED_set_revocationDate().
3187 These allow a CRL to be built without having to access X509_CRL fields
3188 directly. Modify 'ca' application to use new functions.
3191 *) Move SSL_OP_TLS_ROLLBACK_BUG out of the SSL_OP_ALL list of recommended
3192 bug workarounds. Rollback attack detection is a security feature.
3193 The problem will only arise on OpenSSL servers when TLSv1 is not
3194 available (sslv3_server_method() or SSL_OP_NO_TLSv1).
3195 Software authors not wanting to support TLSv1 will have special reasons
3196 for their choice and can explicitly enable this option.
3197 [Bodo Moeller, Lutz Jaenicke]
3199 *) Rationalise EVP so it can be extended: don't include a union of
3200 cipher/digest structures, add init/cleanup functions for EVP_MD_CTX
3201 (similar to those existing for EVP_CIPHER_CTX).
3206 EVP_MD_CTX_init(&md); /* new function call */
3207 EVP_DigestInit(&md, EVP_sha1());
3208 EVP_DigestUpdate(&md, in, len);
3209 EVP_DigestFinal(&md, out, NULL);
3210 EVP_MD_CTX_cleanup(&md); /* new function call */
3214 *) Make DES key schedule conform to the usual scheme, as well as
3215 correcting its structure. This means that calls to DES functions
3216 now have to pass a pointer to a des_key_schedule instead of a
3217 plain des_key_schedule (which was actually always a pointer
3220 des_key_schedule ks;
3222 des_set_key_checked(..., &ks);
3223 des_ncbc_encrypt(..., &ks, ...);
3225 (Note that a later change renames 'des_...' into 'DES_...'.)
3228 *) Initial reduction of linker bloat: the use of some functions, such as
3229 PEM causes large amounts of unused functions to be linked in due to
3230 poor organisation. For example pem_all.c contains every PEM function
3231 which has a knock on effect of linking in large amounts of (unused)
3232 ASN1 code. Grouping together similar functions and splitting unrelated
3233 functions prevents this.
3236 *) Cleanup of EVP macros.
3239 *) Change historical references to {NID,SN,LN}_des_ede and ede3 to add the
3240 correct _ecb suffix.
3243 *) Add initial OCSP responder support to ocsp application. The
3244 revocation information is handled using the text based index
3245 use by the ca application. The responder can either handle
3246 requests generated internally, supplied in files (for example
3247 via a CGI script) or using an internal minimal server.
3250 *) Add configuration choices to get zlib compression for TLS.
3253 *) Changes to Kerberos SSL for RFC 2712 compliance:
3254 1. Implemented real KerberosWrapper, instead of just using
3255 KRB5 AP_REQ message. [Thanks to Simon Wilkinson <sxw@sxw.org.uk>]
3256 2. Implemented optional authenticator field of KerberosWrapper.
3258 Added openssl-style ASN.1 macros for Kerberos ticket, ap_req,
3259 and authenticator structs; see crypto/krb5/.
3261 Generalized Kerberos calls to support multiple Kerberos libraries.
3262 [Vern Staats <staatsvr@asc.hpc.mil>,
3263 Jeffrey Altman <jaltman@columbia.edu>
3264 via Richard Levitte]
3266 *) Cause 'openssl speed' to use fully hard-coded DSA keys as it
3267 already does with RSA. testdsa.h now has 'priv_key/pub_key'
3268 values for each of the key sizes rather than having just
3269 parameters (and 'speed' generating keys each time).
3272 *) Speed up EVP routines.
3275 type 8 bytes 64 bytes 256 bytes 1024 bytes 8192 bytes
3276 des-cbc 4408.85k 5560.51k 5778.46k 5862.20k 5825.16k
3277 des-cbc 4389.55k 5571.17k 5792.23k 5846.91k 5832.11k
3278 des-cbc 4394.32k 5575.92k 5807.44k 5848.37k 5841.30k
3280 des-cbc 3482.66k 5069.49k 5496.39k 5614.16k 5639.28k
3281 des-cbc 3480.74k 5068.76k 5510.34k 5609.87k 5635.52k
3282 des-cbc 3483.72k 5067.62k 5504.60k 5708.01k 5724.80k
3285 des-cbc 4660.16k 5650.19k 5807.19k 5827.13k 5783.32k
3287 des-cbc 3624.96k 5258.21k 5530.91k 5624.30k 5628.26k
3290 *) Added the OS2-EMX target.
3291 ["Brian Havard" <brianh@kheldar.apana.org.au> and Richard Levitte]
3293 *) Rewrite apps to use NCONF routines instead of the old CONF. New functions
3294 to support NCONF routines in extension code. New function CONF_set_nconf()
3295 to allow functions which take an NCONF to also handle the old LHASH
3296 structure: this means that the old CONF compatible routines can be
3297 retained (in particular wrt extensions) without having to duplicate the
3298 code. New function X509V3_add_ext_nconf_sk to add extensions to a stack.
3301 *) Enhance the general user interface with mechanisms for inner control
3302 and with possibilities to have yes/no kind of prompts.
3305 *) Change all calls to low level digest routines in the library and
3306 applications to use EVP. Add missing calls to HMAC_cleanup() and
3307 don't assume HMAC_CTX can be copied using memcpy().
3308 [Verdon Walker <VWalker@novell.com>, Steve Henson]
3310 *) Add the possibility to control engines through control names but with
3311 arbitrary arguments instead of just a string.
3312 Change the key loaders to take a UI_METHOD instead of a callback
3313 function pointer. NOTE: this breaks binary compatibility with earlier
3314 versions of OpenSSL [engine].
3315 Adapt the nCipher code for these new conditions and add a card insertion
3319 *) Enhance the general user interface with mechanisms to better support
3320 dialog box interfaces, application-defined prompts, the possibility
3321 to use defaults (for example default passwords from somewhere else)
3322 and interrupts/cancellations.
3325 *) Tidy up PKCS#12 attribute handling. Add support for the CSP name
3326 attribute in PKCS#12 files, add new -CSP option to pkcs12 utility.
3329 *) Fix a memory leak in 'sk_dup()' in the case reallocation fails. (Also
3330 tidy up some unnecessarily weird code in 'sk_new()').
3331 [Geoff, reported by Diego Tartara <dtartara@novamens.com>]
3333 *) Change the key loading routines for ENGINEs to use the same kind
3334 callback (pem_password_cb) as all other routines that need this
3338 *) Increase ENTROPY_NEEDED to 32 bytes, as Rijndael can operate with
3339 256 bit (=32 byte) keys. Of course seeding with more entropy bytes
3340 than this minimum value is recommended.
3343 *) New random seeder for OpenVMS, using the system process statistics
3344 that are easily reachable.
3347 *) Windows apparently can't transparently handle global
3348 variables defined in DLLs. Initialisations such as:
3350 const ASN1_ITEM *it = &ASN1_INTEGER_it;
3352 wont compile. This is used by the any applications that need to
3353 declare their own ASN1 modules. This was fixed by adding the option
3354 EXPORT_VAR_AS_FN to all Win32 platforms, although this isn't strictly
3355 needed for static libraries under Win32.
3358 *) New functions X509_PURPOSE_set() and X509_TRUST_set() to handle
3359 setting of purpose and trust fields. New X509_STORE trust and
3360 purpose functions and tidy up setting in other SSL functions.
3363 *) Add copies of X509_STORE_CTX fields and callbacks to X509_STORE
3364 structure. These are inherited by X509_STORE_CTX when it is
3365 initialised. This allows various defaults to be set in the
3366 X509_STORE structure (such as flags for CRL checking and custom
3367 purpose or trust settings) for functions which only use X509_STORE_CTX
3368 internally such as S/MIME.
3370 Modify X509_STORE_CTX_purpose_inherit() so it only sets purposes and
3371 trust settings if they are not set in X509_STORE. This allows X509_STORE
3372 purposes and trust (in S/MIME for example) to override any set by default.
3374 Add command line options for CRL checking to smime, s_client and s_server
3378 *) Initial CRL based revocation checking. If the CRL checking flag(s)
3379 are set then the CRL is looked up in the X509_STORE structure and
3380 its validity and signature checked, then if the certificate is found
3381 in the CRL the verify fails with a revoked error.
3383 Various new CRL related callbacks added to X509_STORE_CTX structure.
3385 Command line options added to 'verify' application to support this.
3387 This needs some additional work, such as being able to handle multiple
3388 CRLs with different times, extension based lookup (rather than just
3389 by subject name) and ultimately more complete V2 CRL extension
3393 *) Add a general user interface API (crypto/ui/). This is designed
3394 to replace things like des_read_password and friends (backward
3395 compatibility functions using this new API are provided).
3396 The purpose is to remove prompting functions from the DES code
3397 section as well as provide for prompting through dialog boxes in
3398 a window system and the like.
3401 *) Add "ex_data" support to ENGINE so implementations can add state at a
3402 per-structure level rather than having to store it globally.
3405 *) Make it possible for ENGINE structures to be copied when retrieved by
3406 ENGINE_by_id() if the ENGINE specifies a new flag: ENGINE_FLAGS_BY_ID_COPY.
3407 This causes the "original" ENGINE structure to act like a template,
3408 analogous to the RSA vs. RSA_METHOD type of separation. Because of this
3409 operational state can be localised to each ENGINE structure, despite the
3410 fact they all share the same "methods". New ENGINE structures returned in
3411 this case have no functional references and the return value is the single
3412 structural reference. This matches the single structural reference returned
3413 by ENGINE_by_id() normally, when it is incremented on the pre-existing
3417 *) Fix ASN1 decoder when decoding type ANY and V_ASN1_OTHER: since this
3418 needs to match any other type at all we need to manually clear the
3422 *) Changes to the "openssl engine" utility to include;
3423 - verbosity levels ('-v', '-vv', and '-vvv') that provide information
3424 about an ENGINE's available control commands.
3425 - executing control commands from command line arguments using the
3426 '-pre' and '-post' switches. '-post' is only used if '-t' is
3427 specified and the ENGINE is successfully initialised. The syntax for
3428 the individual commands are colon-separated, for example;
3429 openssl engine chil -pre FORK_CHECK:0 -pre SO_PATH:/lib/test.so
3432 *) New dynamic control command support for ENGINEs. ENGINEs can now
3433 declare their own commands (numbers), names (strings), descriptions,
3434 and input types for run-time discovery by calling applications. A
3435 subset of these commands are implicitly classed as "executable"
3436 depending on their input type, and only these can be invoked through
3437 the new string-based API function ENGINE_ctrl_cmd_string(). (Eg. this
3438 can be based on user input, config files, etc). The distinction is
3439 that "executable" commands cannot return anything other than a boolean
3440 result and can only support numeric or string input, whereas some
3441 discoverable commands may only be for direct use through
3442 ENGINE_ctrl(), eg. supporting the exchange of binary data, function
3443 pointers, or other custom uses. The "executable" commands are to
3444 support parameterisations of ENGINE behaviour that can be
3445 unambiguously defined by ENGINEs and used consistently across any
3446 OpenSSL-based application. Commands have been added to all the
3447 existing hardware-supporting ENGINEs, noticeably "SO_PATH" to allow
3448 control over shared-library paths without source code alterations.
3451 *) Changed all ENGINE implementations to dynamically allocate their
3452 ENGINEs rather than declaring them statically. Apart from this being
3453 necessary with the removal of the ENGINE_FLAGS_MALLOCED distinction,
3454 this also allows the implementations to compile without using the
3455 internal engine_int.h header.
3458 *) Minor adjustment to "rand" code. RAND_get_rand_method() now returns a
3459 'const' value. Any code that should be able to modify a RAND_METHOD
3460 should already have non-const pointers to it (ie. they should only
3461 modify their own ones).
3464 *) Made a variety of little tweaks to the ENGINE code.
3465 - "atalla" and "ubsec" string definitions were moved from header files
3466 to C code. "nuron" string definitions were placed in variables
3467 rather than hard-coded - allowing parameterisation of these values
3468 later on via ctrl() commands.
3469 - Removed unused "#if 0"'d code.
3470 - Fixed engine list iteration code so it uses ENGINE_free() to release
3471 structural references.
3472 - Constified the RAND_METHOD element of ENGINE structures.
3473 - Constified various get/set functions as appropriate and added
3474 missing functions (including a catch-all ENGINE_cpy that duplicates
3475 all ENGINE values onto a new ENGINE except reference counts/state).
3476 - Removed NULL parameter checks in get/set functions. Setting a method
3477 or function to NULL is a way of cancelling out a previously set
3478 value. Passing a NULL ENGINE parameter is just plain stupid anyway
3479 and doesn't justify the extra error symbols and code.
3480 - Deprecate the ENGINE_FLAGS_MALLOCED define and move the area for
3481 flags from engine_int.h to engine.h.
3482 - Changed prototypes for ENGINE handler functions (init(), finish(),
3483 ctrl(), key-load functions, etc) to take an (ENGINE*) parameter.
3486 *) Implement binary inversion algorithm for BN_mod_inverse in addition
3487 to the algorithm using long division. The binary algorithm can be
3488 used only if the modulus is odd. On 32-bit systems, it is faster
3489 only for relatively small moduli (roughly 20-30% for 128-bit moduli,
3490 roughly 5-15% for 256-bit moduli), so we use it only for moduli
3491 up to 450 bits. In 64-bit environments, the binary algorithm
3492 appears to be advantageous for much longer moduli; here we use it
3493 for moduli up to 2048 bits.
3496 *) Rewrite CHOICE field setting in ASN1_item_ex_d2i(). The old code
3497 could not support the combine flag in choice fields.
3500 *) Add a 'copy_extensions' option to the 'ca' utility. This copies
3501 extensions from a certificate request to the certificate.
3504 *) Allow multiple 'certopt' and 'nameopt' options to be separated
3505 by commas. Add 'namopt' and 'certopt' options to the 'ca' config
3506 file: this allows the display of the certificate about to be
3507 signed to be customised, to allow certain fields to be included
3508 or excluded and extension details. The old system didn't display
3509 multicharacter strings properly, omitted fields not in the policy
3510 and couldn't display additional details such as extensions.
3513 *) Function EC_POINTs_mul for multiple scalar multiplication
3514 of an arbitrary number of elliptic curve points
3515 \sum scalars[i]*points[i],
3516 optionally including the generator defined for the EC_GROUP:
3517 scalar*generator + \sum scalars[i]*points[i].
3519 EC_POINT_mul is a simple wrapper function for the typical case
3520 that the point list has just one item (besides the optional
3524 *) First EC_METHODs for curves over GF(p):
3526 EC_GFp_simple_method() uses the basic BN_mod_mul and BN_mod_sqr
3527 operations and provides various method functions that can also
3528 operate with faster implementations of modular arithmetic.
3530 EC_GFp_mont_method() reuses most functions that are part of
3531 EC_GFp_simple_method, but uses Montgomery arithmetic.
3533 [Bodo Moeller; point addition and point doubling
3534 implementation directly derived from source code provided by
3535 Lenka Fibikova <fibikova@exp-math.uni-essen.de>]
3537 *) Framework for elliptic curves (crypto/ec/ec.h, crypto/ec/ec_lcl.h,
3538 crypto/ec/ec_lib.c):
3540 Curves are EC_GROUP objects (with an optional group generator)
3541 based on EC_METHODs that are built into the library.
3543 Points are EC_POINT objects based on EC_GROUP objects.
3545 Most of the framework would be able to handle curves over arbitrary
3546 finite fields, but as there are no obvious types for fields other
3547 than GF(p), some functions are limited to that for now.
3550 *) Add the -HTTP option to s_server. It is similar to -WWW, but requires
3551 that the file contains a complete HTTP response.
3554 *) Add the ec directory to mkdef.pl and mkfiles.pl. In mkdef.pl
3555 change the def and num file printf format specifier from "%-40sXXX"
3556 to "%-39s XXX". The latter will always guarantee a space after the
3557 field while the former will cause them to run together if the field
3558 is 40 of more characters long.
3561 *) Constify the cipher and digest 'method' functions and structures
3562 and modify related functions to take constant EVP_MD and EVP_CIPHER
3566 *) Hide BN_CTX structure details in bn_lcl.h instead of publishing them
3567 in <openssl/bn.h>. Also further increase BN_CTX_NUM to 32.
3570 *) Modify EVP_Digest*() routines so they now return values. Although the
3571 internal software routines can never fail additional hardware versions
3575 *) Clean up crypto/err/err.h and change some error codes to avoid conflicts:
3577 Previously ERR_R_FATAL was too small and coincided with ERR_LIB_PKCS7
3578 (= ERR_R_PKCS7_LIB); it is now 64 instead of 32.
3581 ERR_R_NESTED_ASN1_ERROR
3583 ERR_R_MISSING_ASN1_EOS
3584 were 4 .. 9, conflicting with
3585 ERR_LIB_RSA (= ERR_R_RSA_LIB)
3587 ERR_LIB_PEM (= ERR_R_PEM_LIB).
3588 They are now 58 .. 63 (i.e., just below ERR_R_FATAL).
3590 Add new error code 'ERR_R_INTERNAL_ERROR'.
3593 *) Don't overuse locks in crypto/err/err.c: For data retrieval, CRYPTO_r_lock
3597 *) New option '-subj arg' for 'openssl req' and 'openssl ca'. This
3598 sets the subject name for a new request or supersedes the
3599 subject name in a given request. Formats that can be parsed are
3600 'CN=Some Name, OU=myOU, C=IT'
3602 'CN=Some Name/OU=myOU/C=IT'.
3604 Add options '-batch' and '-verbose' to 'openssl req'.
3605 [Massimiliano Pala <madwolf@hackmasters.net>]
3607 *) Introduce the possibility to access global variables through
3608 functions on platform were that's the best way to handle exporting
3609 global variables in shared libraries. To enable this functionality,
3610 one must configure with "EXPORT_VAR_AS_FN" or defined the C macro
3611 "OPENSSL_EXPORT_VAR_AS_FUNCTION" in crypto/opensslconf.h (the latter
3612 is normally done by Configure or something similar).
3614 To implement a global variable, use the macro OPENSSL_IMPLEMENT_GLOBAL
3615 in the source file (foo.c) like this:
3617 OPENSSL_IMPLEMENT_GLOBAL(int,foo)=1;
3618 OPENSSL_IMPLEMENT_GLOBAL(double,bar);
3620 To declare a global variable, use the macros OPENSSL_DECLARE_GLOBAL
3621 and OPENSSL_GLOBAL_REF in the header file (foo.h) like this:
3623 OPENSSL_DECLARE_GLOBAL(int,foo);
3624 #define foo OPENSSL_GLOBAL_REF(foo)
3625 OPENSSL_DECLARE_GLOBAL(double,bar);
3626 #define bar OPENSSL_GLOBAL_REF(bar)
3628 The #defines are very important, and therefore so is including the
3629 header file everywhere where the defined globals are used.
3631 The macro OPENSSL_EXPORT_VAR_AS_FUNCTION also affects the definition
3632 of ASN.1 items, but that structure is a bit different.
3634 The largest change is in util/mkdef.pl which has been enhanced with
3635 better and easier to understand logic to choose which symbols should
3636 go into the Windows .def files as well as a number of fixes and code
3637 cleanup (among others, algorithm keywords are now sorted
3638 lexicographically to avoid constant rewrites).
3641 *) In BN_div() keep a copy of the sign of 'num' before writing the
3642 result to 'rm' because if rm==num the value will be overwritten
3643 and produce the wrong result if 'num' is negative: this caused
3644 problems with BN_mod() and BN_nnmod().
3647 *) Function OCSP_request_verify(). This checks the signature on an
3648 OCSP request and verifies the signer certificate. The signer
3649 certificate is just checked for a generic purpose and OCSP request
3653 *) Add OCSP_check_validity() function to check the validity of OCSP
3654 responses. OCSP responses are prepared in real time and may only
3655 be a few seconds old. Simply checking that the current time lies
3656 between thisUpdate and nextUpdate max reject otherwise valid responses
3657 caused by either OCSP responder or client clock inaccuracy. Instead
3658 we allow thisUpdate and nextUpdate to fall within a certain period of
3659 the current time. The age of the response can also optionally be
3660 checked. Two new options -validity_period and -status_age added to
3664 *) If signature or public key algorithm is unrecognized print out its
3665 OID rather that just UNKNOWN.
3668 *) Change OCSP_cert_to_id() to tolerate a NULL subject certificate and
3669 OCSP_cert_id_new() a NULL serialNumber. This allows a partial certificate
3670 ID to be generated from the issuer certificate alone which can then be
3671 passed to OCSP_id_issuer_cmp().
3674 *) New compilation option ASN1_ITEM_FUNCTIONS. This causes the new
3675 ASN1 modules to export functions returning ASN1_ITEM pointers
3676 instead of the ASN1_ITEM structures themselves. This adds several
3677 new macros which allow the underlying ASN1 function/structure to
3678 be accessed transparently. As a result code should not use ASN1_ITEM
3679 references directly (such as &X509_it) but instead use the relevant
3680 macros (such as ASN1_ITEM_rptr(X509)). This option is to allow
3681 use of the new ASN1 code on platforms where exporting structures
3682 is problematical (for example in shared libraries) but exporting
3683 functions returning pointers to structures is not.
3686 *) Add support for overriding the generation of SSL/TLS session IDs.
3687 These callbacks can be registered either in an SSL_CTX or per SSL.
3688 The purpose of this is to allow applications to control, if they wish,
3689 the arbitrary values chosen for use as session IDs, particularly as it
3690 can be useful for session caching in multiple-server environments. A
3691 command-line switch for testing this (and any client code that wishes
3692 to use such a feature) has been added to "s_server".
3693 [Geoff Thorpe, Lutz Jaenicke]
3695 *) Modify mkdef.pl to recognise and parse preprocessor conditionals
3696 of the form '#if defined(...) || defined(...) || ...' and
3697 '#if !defined(...) && !defined(...) && ...'. This also avoids
3698 the growing number of special cases it was previously handling.
3701 *) Make all configuration macros available for application by making
3702 sure they are available in opensslconf.h, by giving them names starting
3703 with "OPENSSL_" to avoid conflicts with other packages and by making
3704 sure e_os2.h will cover all platform-specific cases together with
3706 Additionally, it is now possible to define configuration/platform-
3707 specific names (called "system identities"). In the C code, these
3708 are prefixed with "OPENSSL_SYSNAME_". e_os2.h will create another
3709 macro with the name beginning with "OPENSSL_SYS_", which is determined
3710 from "OPENSSL_SYSNAME_*" or compiler-specific macros depending on
3714 *) New option -set_serial to 'req' and 'x509' this allows the serial
3715 number to use to be specified on the command line. Previously self
3716 signed certificates were hard coded with serial number 0 and the
3717 CA options of 'x509' had to use a serial number in a file which was
3721 *) New options to 'ca' utility to support V2 CRL entry extensions.
3722 Currently CRL reason, invalidity date and hold instruction are
3723 supported. Add new CRL extensions to V3 code and some new objects.
3726 *) New function EVP_CIPHER_CTX_set_padding() this is used to
3727 disable standard block padding (aka PKCS#5 padding) in the EVP
3728 API, which was previously mandatory. This means that the data is
3729 not padded in any way and so the total length much be a multiple
3730 of the block size, otherwise an error occurs.
3733 *) Initial (incomplete) OCSP SSL support.
3736 *) New function OCSP_parse_url(). This splits up a URL into its host,
3737 port and path components: primarily to parse OCSP URLs. New -url
3738 option to ocsp utility.
3741 *) New nonce behavior. The return value of OCSP_check_nonce() now
3742 reflects the various checks performed. Applications can decide
3743 whether to tolerate certain situations such as an absent nonce
3744 in a response when one was present in a request: the ocsp application
3745 just prints out a warning. New function OCSP_add1_basic_nonce()
3746 this is to allow responders to include a nonce in a response even if
3747 the request is nonce-less.
3750 *) Disable stdin buffering in load_cert (apps/apps.c) so that no certs are
3751 skipped when using openssl x509 multiple times on a single input file,
3752 e.g. "(openssl x509 -out cert1; openssl x509 -out cert2) <certs".
3755 *) Make ASN1_UTCTIME_set_string() and ASN1_GENERALIZEDTIME_set_string()
3756 set string type: to handle setting ASN1_TIME structures. Fix ca
3757 utility to correctly initialize revocation date of CRLs.
3760 *) New option SSL_OP_CIPHER_SERVER_PREFERENCE allows the server to override
3761 the clients preferred ciphersuites and rather use its own preferences.
3762 Should help to work around M$ SGC (Server Gated Cryptography) bug in
3763 Internet Explorer by ensuring unchanged hash method during stepup.
3764 (Also replaces the broken/deactivated SSL_OP_NON_EXPORT_FIRST option.)
3767 *) Make mkdef.pl recognise all DECLARE_ASN1 macros, change rijndael
3768 to aes and add a new 'exist' option to print out symbols that don't
3772 *) Additional options to ocsp utility to allow flags to be set and
3773 additional certificates supplied.
3776 *) Add the option -VAfile to 'openssl ocsp', so the user can give the
3777 OCSP client a number of certificate to only verify the response
3781 *) Update Rijndael code to version 3.0 and change EVP AES ciphers to
3782 handle the new API. Currently only ECB, CBC modes supported. Add new
3785 Add TLS AES ciphersuites as described in RFC3268, "Advanced
3786 Encryption Standard (AES) Ciphersuites for Transport Layer
3787 Security (TLS)". (In beta versions of OpenSSL 0.9.7, these were
3788 not enabled by default and were not part of the "ALL" ciphersuite
3789 alias because they were not yet official; they could be
3790 explicitly requested by specifying the "AESdraft" ciphersuite
3791 group alias. In the final release of OpenSSL 0.9.7, the group
3792 alias is called "AES" and is part of "ALL".)
3793 [Ben Laurie, Steve Henson, Bodo Moeller]
3795 *) New function OCSP_copy_nonce() to copy nonce value (if present) from
3796 request to response.
3799 *) Functions for OCSP responders. OCSP_request_onereq_count(),
3800 OCSP_request_onereq_get0(), OCSP_onereq_get0_id() and OCSP_id_get0_info()
3801 extract information from a certificate request. OCSP_response_create()
3802 creates a response and optionally adds a basic response structure.
3803 OCSP_basic_add1_status() adds a complete single response to a basic
3804 response and returns the OCSP_SINGLERESP structure just added (to allow
3805 extensions to be included for example). OCSP_basic_add1_cert() adds a
3806 certificate to a basic response and OCSP_basic_sign() signs a basic
3807 response with various flags. New helper functions ASN1_TIME_check()
3808 (checks validity of ASN1_TIME structure) and ASN1_TIME_to_generalizedtime()
3809 (converts ASN1_TIME to GeneralizedTime).
3812 *) Various new functions. EVP_Digest() combines EVP_Digest{Init,Update,Final}()
3813 in a single operation. X509_get0_pubkey_bitstr() extracts the public_key
3814 structure from a certificate. X509_pubkey_digest() digests the public_key
3815 contents: this is used in various key identifiers.
3818 *) Make sk_sort() tolerate a NULL argument.
3819 [Steve Henson reported by Massimiliano Pala <madwolf@comune.modena.it>]
3821 *) New OCSP verify flag OCSP_TRUSTOTHER. When set the "other" certificates
3822 passed by the function are trusted implicitly. If any of them signed the
3823 response then it is assumed to be valid and is not verified.
3826 *) In PKCS7_set_type() initialise content_type in PKCS7_ENC_CONTENT
3827 to data. This was previously part of the PKCS7 ASN1 code. This
3828 was causing problems with OpenSSL created PKCS#12 and PKCS#7 structures.
3829 [Steve Henson, reported by Kenneth R. Robinette
3830 <support@securenetterm.com>]
3832 *) Add CRYPTO_push_info() and CRYPTO_pop_info() calls to new ASN1
3833 routines: without these tracing memory leaks is very painful.
3834 Fix leaks in PKCS12 and PKCS7 routines.
3837 *) Make X509_time_adj() cope with the new behaviour of ASN1_TIME_new().
3838 Previously it initialised the 'type' argument to V_ASN1_UTCTIME which
3839 effectively meant GeneralizedTime would never be used. Now it
3840 is initialised to -1 but X509_time_adj() now has to check the value
3841 and use ASN1_TIME_set() if the value is not V_ASN1_UTCTIME or
3842 V_ASN1_GENERALIZEDTIME, without this it always uses GeneralizedTime.
3843 [Steve Henson, reported by Kenneth R. Robinette
3844 <support@securenetterm.com>]
3846 *) Fixes to BN_to_ASN1_INTEGER when bn is zero. This would previously
3847 result in a zero length in the ASN1_INTEGER structure which was
3848 not consistent with the structure when d2i_ASN1_INTEGER() was used
3849 and would cause ASN1_INTEGER_cmp() to fail. Enhance s2i_ASN1_INTEGER()
3850 to cope with hex and negative integers. Fix bug in i2a_ASN1_INTEGER()
3851 where it did not print out a minus for negative ASN1_INTEGER.
3854 *) Add summary printout to ocsp utility. The various functions which
3855 convert status values to strings have been renamed to:
3856 OCSP_response_status_str(), OCSP_cert_status_str() and
3857 OCSP_crl_reason_str() and are no longer static. New options
3858 to verify nonce values and to disable verification. OCSP response
3859 printout format cleaned up.
3862 *) Add additional OCSP certificate checks. These are those specified
3863 in RFC2560. This consists of two separate checks: the CA of the
3864 certificate being checked must either be the OCSP signer certificate
3865 or the issuer of the OCSP signer certificate. In the latter case the
3866 OCSP signer certificate must contain the OCSP signing extended key
3867 usage. This check is performed by attempting to match the OCSP
3868 signer or the OCSP signer CA to the issuerNameHash and issuerKeyHash
3869 in the OCSP_CERTID structures of the response.
3872 *) Initial OCSP certificate verification added to OCSP_basic_verify()
3873 and related routines. This uses the standard OpenSSL certificate
3874 verify routines to perform initial checks (just CA validity) and
3875 to obtain the certificate chain. Then additional checks will be
3876 performed on the chain. Currently the root CA is checked to see
3877 if it is explicitly trusted for OCSP signing. This is used to set
3878 a root CA as a global signing root: that is any certificate that
3879 chains to that CA is an acceptable OCSP signing certificate.
3882 *) New '-extfile ...' option to 'openssl ca' for reading X.509v3
3883 extensions from a separate configuration file.
3884 As when reading extensions from the main configuration file,
3885 the '-extensions ...' option may be used for specifying the
3887 [Massimiliano Pala <madwolf@comune.modena.it>]
3889 *) New OCSP utility. Allows OCSP requests to be generated or
3890 read. The request can be sent to a responder and the output
3891 parsed, outputed or printed in text form. Not complete yet:
3892 still needs to check the OCSP response validity.
3895 *) New subcommands for 'openssl ca':
3896 'openssl ca -status <serial>' prints the status of the cert with
3897 the given serial number (according to the index file).
3898 'openssl ca -updatedb' updates the expiry status of certificates
3900 [Massimiliano Pala <madwolf@comune.modena.it>]
3902 *) New '-newreq-nodes' command option to CA.pl. This is like
3903 '-newreq', but calls 'openssl req' with the '-nodes' option
3904 so that the resulting key is not encrypted.
3905 [Damien Miller <djm@mindrot.org>]
3907 *) New configuration for the GNU Hurd.
3908 [Jonathan Bartlett <johnnyb@wolfram.com> via Richard Levitte]
3910 *) Initial code to implement OCSP basic response verify. This
3911 is currently incomplete. Currently just finds the signer's
3912 certificate and verifies the signature on the response.
3915 *) New SSLeay_version code SSLEAY_DIR to determine the compiled-in
3916 value of OPENSSLDIR. This is available via the new '-d' option
3917 to 'openssl version', and is also included in 'openssl version -a'.
3920 *) Allowing defining memory allocation callbacks that will be given
3921 file name and line number information in additional arguments
3922 (a const char* and an int). The basic functionality remains, as
3923 well as the original possibility to just replace malloc(),
3924 realloc() and free() by functions that do not know about these
3925 additional arguments. To register and find out the current
3926 settings for extended allocation functions, the following
3927 functions are provided:
3929 CRYPTO_set_mem_ex_functions
3930 CRYPTO_set_locked_mem_ex_functions
3931 CRYPTO_get_mem_ex_functions
3932 CRYPTO_get_locked_mem_ex_functions
3934 These work the same way as CRYPTO_set_mem_functions and friends.
3935 CRYPTO_get_[locked_]mem_functions now writes 0 where such an
3936 extended allocation function is enabled.
3937 Similarly, CRYPTO_get_[locked_]mem_ex_functions writes 0 where
3938 a conventional allocation function is enabled.
3939 [Richard Levitte, Bodo Moeller]
3941 *) Finish off removing the remaining LHASH function pointer casts.
3942 There should no longer be any prototype-casting required when using
3943 the LHASH abstraction, and any casts that remain are "bugs". See
3944 the callback types and macros at the head of lhash.h for details
3945 (and "OBJ_cleanup" in crypto/objects/obj_dat.c as an example).
3948 *) Add automatic query of EGD sockets in RAND_poll() for the unix variant.
3949 If /dev/[u]random devices are not available or do not return enough
3950 entropy, EGD style sockets (served by EGD or PRNGD) will automatically
3952 The locations /var/run/egd-pool, /dev/egd-pool, /etc/egd-pool, and
3953 /etc/entropy will be queried once each in this sequence, quering stops
3954 when enough entropy was collected without querying more sockets.
3957 *) Change the Unix RAND_poll() variant to be able to poll several
3958 random devices, as specified by DEVRANDOM, until a sufficient amount
3959 of data has been collected. We spend at most 10 ms on each file
3960 (select timeout) and read in non-blocking mode. DEVRANDOM now
3961 defaults to the list "/dev/urandom", "/dev/random", "/dev/srandom"
3962 (previously it was just the string "/dev/urandom"), so on typical
3963 platforms the 10 ms delay will never occur.
3964 Also separate out the Unix variant to its own file, rand_unix.c.
3965 For VMS, there's a currently-empty rand_vms.c.
3968 *) Move OCSP client related routines to ocsp_cl.c. These
3969 provide utility functions which an application needing
3970 to issue a request to an OCSP responder and analyse the
3971 response will typically need: as opposed to those which an
3972 OCSP responder itself would need which will be added later.
3974 OCSP_request_sign() signs an OCSP request with an API similar
3975 to PKCS7_sign(). OCSP_response_status() returns status of OCSP
3976 response. OCSP_response_get1_basic() extracts basic response
3977 from response. OCSP_resp_find_status(): finds and extracts status
3978 information from an OCSP_CERTID structure (which will be created
3979 when the request structure is built). These are built from lower
3980 level functions which work on OCSP_SINGLERESP structures but
3981 wont normally be used unless the application wishes to examine
3982 extensions in the OCSP response for example.
3984 Replace nonce routines with a pair of functions.
3985 OCSP_request_add1_nonce() adds a nonce value and optionally
3986 generates a random value. OCSP_check_nonce() checks the
3987 validity of the nonce in an OCSP response.
3990 *) Change function OCSP_request_add() to OCSP_request_add0_id().
3991 This doesn't copy the supplied OCSP_CERTID and avoids the
3992 need to free up the newly created id. Change return type
3993 to OCSP_ONEREQ to return the internal OCSP_ONEREQ structure.
3994 This can then be used to add extensions to the request.
3995 Deleted OCSP_request_new(), since most of its functionality
3996 is now in OCSP_REQUEST_new() (and the case insensitive name
3997 clash) apart from the ability to set the request name which
3998 will be added elsewhere.
4001 *) Update OCSP API. Remove obsolete extensions argument from
4002 various functions. Extensions are now handled using the new
4003 OCSP extension code. New simple OCSP HTTP function which
4004 can be used to send requests and parse the response.
4007 *) Fix the PKCS#7 (S/MIME) code to work with new ASN1. Two new
4008 ASN1_ITEM structures help with sign and verify. PKCS7_ATTR_SIGN
4009 uses the special reorder version of SET OF to sort the attributes
4010 and reorder them to match the encoded order. This resolves a long
4011 standing problem: a verify on a PKCS7 structure just after signing
4012 it used to fail because the attribute order did not match the
4013 encoded order. PKCS7_ATTR_VERIFY does not reorder the attributes:
4014 it uses the received order. This is necessary to tolerate some broken
4015 software that does not order SET OF. This is handled by encoding
4016 as a SEQUENCE OF but using implicit tagging (with UNIVERSAL class)
4017 to produce the required SET OF.
4020 *) Have mk1mf.pl generate the macros OPENSSL_BUILD_SHLIBCRYPTO and
4021 OPENSSL_BUILD_SHLIBSSL and use them appropriately in the header
4022 files to get correct declarations of the ASN.1 item variables.
4025 *) Rewrite of PKCS#12 code to use new ASN1 functionality. Replace many
4026 PKCS#12 macros with real functions. Fix two unrelated ASN1 bugs:
4027 asn1_check_tlen() would sometimes attempt to use 'ctx' when it was
4028 NULL and ASN1_TYPE was not dereferenced properly in asn1_ex_c2i().
4029 New ASN1 macro: DECLARE_ASN1_ITEM() which just declares the relevant
4030 ASN1_ITEM and no wrapper functions.
4033 *) New functions or ASN1_item_d2i_fp() and ASN1_item_d2i_bio(). These
4034 replace the old function pointer based I/O routines. Change most of
4035 the *_d2i_bio() and *_d2i_fp() functions to use these.
4038 *) Enhance mkdef.pl to be more accepting about spacing in C preprocessor
4039 lines, recognice more "algorithms" that can be deselected, and make
4040 it complain about algorithm deselection that isn't recognised.
4043 *) New ASN1 functions to handle dup, sign, verify, digest, pack and
4044 unpack operations in terms of ASN1_ITEM. Modify existing wrappers
4045 to use new functions. Add NO_ASN1_OLD which can be set to remove
4046 some old style ASN1 functions: this can be used to determine if old
4047 code will still work when these eventually go away.
4050 *) New extension functions for OCSP structures, these follow the
4051 same conventions as certificates and CRLs.
4054 *) New function X509V3_add1_i2d(). This automatically encodes and
4055 adds an extension. Its behaviour can be customised with various
4056 flags to append, replace or delete. Various wrappers added for
4057 certifcates and CRLs.
4060 *) Fix to avoid calling the underlying ASN1 print routine when
4061 an extension cannot be parsed. Correct a typo in the
4062 OCSP_SERVICELOC extension. Tidy up print OCSP format.
4065 *) Make mkdef.pl parse some of the ASN1 macros and add apropriate
4066 entries for variables.
4069 *) Add functionality to apps/openssl.c for detecting locking
4070 problems: As the program is single-threaded, all we have
4071 to do is register a locking callback using an array for
4072 storing which locks are currently held by the program.
4075 *) Use a lock around the call to CRYPTO_get_ex_new_index() in
4076 SSL_get_ex_data_X509_STORE_idx(), which is used in
4077 ssl_verify_cert_chain() and thus can be called at any time
4078 during TLS/SSL handshakes so that thread-safety is essential.
4079 Unfortunately, the ex_data design is not at all suited
4080 for multi-threaded use, so it probably should be abolished.
4083 *) Added Broadcom "ubsec" ENGINE to OpenSSL.
4084 [Broadcom, tweaked and integrated by Geoff Thorpe]
4086 *) Move common extension printing code to new function
4087 X509V3_print_extensions(). Reorganise OCSP print routines and
4088 implement some needed OCSP ASN1 functions. Add OCSP extensions.
4091 *) New function X509_signature_print() to remove duplication in some
4095 *) Add a special meaning when SET OF and SEQUENCE OF flags are both
4096 set (this was treated exactly the same as SET OF previously). This
4097 is used to reorder the STACK representing the structure to match the
4098 encoding. This will be used to get round a problem where a PKCS7
4099 structure which was signed could not be verified because the STACK
4100 order did not reflect the encoded order.
4103 *) Reimplement the OCSP ASN1 module using the new code.
4106 *) Update the X509V3 code to permit the use of an ASN1_ITEM structure
4107 for its ASN1 operations. The old style function pointers still exist
4108 for now but they will eventually go away.
4111 *) Merge in replacement ASN1 code from the ASN1 branch. This almost
4112 completely replaces the old ASN1 functionality with a table driven
4113 encoder and decoder which interprets an ASN1_ITEM structure describing
4114 the ASN1 module. Compatibility with the existing ASN1 API (i2d,d2i) is
4115 largely maintained. Almost all of the old asn1_mac.h macro based ASN1
4116 has also been converted to the new form.
4119 *) Change BN_mod_exp_recp so that negative moduli are tolerated
4120 (the sign is ignored). Similarly, ignore the sign in BN_MONT_CTX_set
4121 so that BN_mod_exp_mont and BN_mod_exp_mont_word work
4122 for negative moduli.
4125 *) Fix BN_uadd and BN_usub: Always return non-negative results instead
4126 of not touching the result's sign bit.
4129 *) BN_div bugfix: If the result is 0, the sign (res->neg) must not be
4133 *) Changed the LHASH code to use prototypes for callbacks, and created
4134 macros to declare and implement thin (optionally static) functions
4135 that provide type-safety and avoid function pointer casting for the
4136 type-specific callbacks.
4139 *) Added Kerberos Cipher Suites to be used with TLS, as written in
4141 [Veers Staats <staatsvr@asc.hpc.mil>,
4142 Jeffrey Altman <jaltman@columbia.edu>, via Richard Levitte]
4144 *) Reformat the FAQ so the different questions and answers can be divided
4145 in sections depending on the subject.
4148 *) Have the zlib compression code load ZLIB.DLL dynamically under
4152 *) New function BN_mod_sqrt for computing square roots modulo a prime
4153 (using the probabilistic Tonelli-Shanks algorithm unless
4154 p == 3 (mod 4) or p == 5 (mod 8), which are cases that can
4155 be handled deterministically).
4156 [Lenka Fibikova <fibikova@exp-math.uni-essen.de>, Bodo Moeller]
4158 *) Make BN_mod_inverse faster by explicitly handling small quotients
4159 in the Euclid loop. (Speed gain about 20% for small moduli [256 or
4160 512 bits], about 30% for larger ones [1024 or 2048 bits].)
4163 *) New function BN_kronecker.
4166 *) Fix BN_gcd so that it works on negative inputs; the result is
4167 positive unless both parameters are zero.
4168 Previously something reasonably close to an infinite loop was
4169 possible because numbers could be growing instead of shrinking
4170 in the implementation of Euclid's algorithm.
4173 *) Fix BN_is_word() and BN_is_one() macros to take into account the
4174 sign of the number in question.
4176 Fix BN_is_word(a,w) to work correctly for w == 0.
4178 The old BN_is_word(a,w) macro is now called BN_abs_is_word(a,w)
4179 because its test if the absolute value of 'a' equals 'w'.
4180 Note that BN_abs_is_word does *not* handle w == 0 reliably;
4181 it exists mostly for use in the implementations of BN_is_zero(),
4182 BN_is_one(), and BN_is_word().
4185 *) New function BN_swap.
4188 *) Use BN_nnmod instead of BN_mod in crypto/bn/bn_exp.c so that
4189 the exponentiation functions are more likely to produce reasonable
4190 results on negative inputs.
4193 *) Change BN_mod_mul so that the result is always non-negative.
4194 Previously, it could be negative if one of the factors was negative;
4195 I don't think anyone really wanted that behaviour.
4198 *) Move BN_mod_... functions into new file crypto/bn/bn_mod.c
4199 (except for exponentiation, which stays in crypto/bn/bn_exp.c,
4200 and BN_mod_mul_reciprocal, which stays in crypto/bn/bn_recp.c)
4201 and add new functions:
4210 BN_mod_lshift1_quick
4214 These functions always generate non-negative results.
4216 BN_nnmod otherwise is like BN_mod (if BN_mod computes a remainder r
4217 such that |m| < r < 0, BN_nnmod will output rem + |m| instead).
4219 BN_mod_XXX_quick(r, a, [b,] m) generates the same result as
4220 BN_mod_XXX(r, a, [b,] m, ctx), but requires that a [and b]
4221 be reduced modulo m.
4222 [Lenka Fibikova <fibikova@exp-math.uni-essen.de>, Bodo Moeller]
4225 The following entry accidentily appeared in the CHANGES file
4226 distributed with OpenSSL 0.9.7. The modifications described in
4227 it do *not* apply to OpenSSL 0.9.7.
4229 *) Remove a few calls to bn_wexpand() in BN_sqr() (the one in there
4230 was actually never needed) and in BN_mul(). The removal in BN_mul()
4231 required a small change in bn_mul_part_recursive() and the addition
4232 of the functions bn_cmp_part_words(), bn_sub_part_words() and
4233 bn_add_part_words(), which do the same thing as bn_cmp_words(),
4234 bn_sub_words() and bn_add_words() except they take arrays with
4239 *) In 'openssl passwd', verify passwords read from the terminal
4240 unless the '-salt' option is used (which usually means that
4241 verification would just waste user's time since the resulting
4242 hash is going to be compared with some given password hash)
4243 or the new '-noverify' option is used.
4245 This is an incompatible change, but it does not affect
4246 non-interactive use of 'openssl passwd' (passwords on the command
4247 line, '-stdin' option, '-in ...' option) and thus should not
4251 *) Remove all references to RSAref, since there's no more need for it.
4254 *) Make DSO load along a path given through an environment variable
4255 (SHLIB_PATH) with shl_load().
4258 *) Constify the ENGINE code as a result of BIGNUM constification.
4259 Also constify the RSA code and most things related to it. In a
4260 few places, most notable in the depth of the ASN.1 code, ugly
4261 casts back to non-const were required (to be solved at a later
4265 *) Make it so the openssl application has all engines loaded by default.
4268 *) Constify the BIGNUM routines a little more.
4271 *) Add the following functions:
4273 ENGINE_load_cswift()
4275 ENGINE_load_atalla()
4277 ENGINE_load_builtin_engines()
4279 That way, an application can itself choose if external engines that
4280 are built-in in OpenSSL shall ever be used or not. The benefit is
4281 that applications won't have to be linked with libdl or other dso
4282 libraries unless it's really needed.
4284 Changed 'openssl engine' to load all engines on demand.
4285 Changed the engine header files to avoid the duplication of some
4286 declarations (they differed!).
4289 *) 'openssl engine' can now list capabilities.
4292 *) Better error reporting in 'openssl engine'.
4295 *) Never call load_dh_param(NULL) in s_server.
4298 *) Add engine application. It can currently list engines by name and
4299 identity, and test if they are actually available.
4302 *) Improve RPM specification file by forcing symbolic linking and making
4303 sure the installed documentation is also owned by root.root.
4304 [Damien Miller <djm@mindrot.org>]
4306 *) Give the OpenSSL applications more possibilities to make use of
4307 keys (public as well as private) handled by engines.
4310 *) Add OCSP code that comes from CertCo.
4313 *) Add VMS support for the Rijndael code.
4316 *) Added untested support for Nuron crypto accelerator.
4319 *) Add support for external cryptographic devices. This code was
4320 previously distributed separately as the "engine" branch.
4321 [Geoff Thorpe, Richard Levitte]
4323 *) Rework the filename-translation in the DSO code. It is now possible to
4324 have far greater control over how a "name" is turned into a filename
4325 depending on the operating environment and any oddities about the
4326 different shared library filenames on each system.
4329 *) Support threads on FreeBSD-elf in Configure.
4332 *) Fix for SHA1 assembly problem with MASM: it produces
4333 warnings about corrupt line number information when assembling
4334 with debugging information. This is caused by the overlapping
4336 [Bernd Matthes <mainbug@celocom.de>, Steve Henson]
4339 NCONF_get_number() has no error checking at all. As a replacement,
4340 NCONF_get_number_e() is defined (_e for "error checking") and is
4341 promoted strongly. The old NCONF_get_number is kept around for
4342 binary backward compatibility.
4343 Make it possible for methods to load from something other than a BIO,
4344 by providing a function pointer that is given a name instead of a BIO.
4345 For example, this could be used to load configuration data from an
4349 *) Fix for non blocking accept BIOs. Added new I/O special reason
4350 BIO_RR_ACCEPT to cover this case. Previously use of accept BIOs
4351 with non blocking I/O was not possible because no retry code was
4352 implemented. Also added new SSL code SSL_WANT_ACCEPT to cover
4356 *) Added the beginnings of Rijndael support.
4359 *) Fix for bug in DirectoryString mask setting. Add support for
4360 X509_NAME_print_ex() in 'req' and X509_print_ex() function
4361 to allow certificate printing to more controllable, additional
4362 'certopt' option to 'x509' to allow new printing options to be
4366 *) Clean old EAY MD5 hack from e_os.h.
4369 Changes between 0.9.6l and 0.9.6m [17 Mar 2004]
4371 *) Fix null-pointer assignment in do_change_cipher_spec() revealed
4372 by using the Codenomicon TLS Test Tool (CVE-2004-0079)
4373 [Joe Orton, Steve Henson]
4375 Changes between 0.9.6k and 0.9.6l [04 Nov 2003]
4377 *) Fix additional bug revealed by the NISCC test suite:
4379 Stop bug triggering large recursion when presented with
4380 certain ASN.1 tags (CVE-2003-0851)
4383 Changes between 0.9.6j and 0.9.6k [30 Sep 2003]
4385 *) Fix various bugs revealed by running the NISCC test suite:
4387 Stop out of bounds reads in the ASN1 code when presented with
4388 invalid tags (CVE-2003-0543 and CVE-2003-0544).
4390 If verify callback ignores invalid public key errors don't try to check
4391 certificate signature with the NULL public key.
4395 *) In ssl3_accept() (ssl/s3_srvr.c) only accept a client certificate
4396 if the server requested one: as stated in TLS 1.0 and SSL 3.0
4400 *) In ssl3_get_client_hello() (ssl/s3_srvr.c), tolerate additional
4401 extra data after the compression methods not only for TLS 1.0
4402 but also for SSL 3.0 (as required by the specification).
4403 [Bodo Moeller; problem pointed out by Matthias Loepfe]
4405 *) Change X509_certificate_type() to mark the key as exported/exportable
4406 when it's 512 *bits* long, not 512 bytes.
4409 Changes between 0.9.6i and 0.9.6j [10 Apr 2003]
4411 *) Countermeasure against the Klima-Pokorny-Rosa extension of
4412 Bleichbacher's attack on PKCS #1 v1.5 padding: treat
4413 a protocol version number mismatch like a decryption error
4414 in ssl3_get_client_key_exchange (ssl/s3_srvr.c).
4417 *) Turn on RSA blinding by default in the default implementation
4418 to avoid a timing attack. Applications that don't want it can call
4419 RSA_blinding_off() or use the new flag RSA_FLAG_NO_BLINDING.
4420 They would be ill-advised to do so in most cases.
4421 [Ben Laurie, Steve Henson, Geoff Thorpe, Bodo Moeller]
4423 *) Change RSA blinding code so that it works when the PRNG is not
4424 seeded (in this case, the secret RSA exponent is abused as
4425 an unpredictable seed -- if it is not unpredictable, there
4426 is no point in blinding anyway). Make RSA blinding thread-safe
4427 by remembering the creator's thread ID in rsa->blinding and
4428 having all other threads use local one-time blinding factors
4429 (this requires more computation than sharing rsa->blinding, but
4430 avoids excessive locking; and if an RSA object is not shared
4431 between threads, blinding will still be very fast).
4434 Changes between 0.9.6h and 0.9.6i [19 Feb 2003]
4436 *) In ssl3_get_record (ssl/s3_pkt.c), minimize information leaked
4437 via timing by performing a MAC computation even if incorrrect
4438 block cipher padding has been found. This is a countermeasure
4439 against active attacks where the attacker has to distinguish
4440 between bad padding and a MAC verification error. (CVE-2003-0078)
4442 [Bodo Moeller; problem pointed out by Brice Canvel (EPFL),
4443 Alain Hiltgen (UBS), Serge Vaudenay (EPFL), and
4444 Martin Vuagnoux (EPFL, Ilion)]
4446 Changes between 0.9.6g and 0.9.6h [5 Dec 2002]
4448 *) New function OPENSSL_cleanse(), which is used to cleanse a section of
4449 memory from it's contents. This is done with a counter that will
4450 place alternating values in each byte. This can be used to solve
4451 two issues: 1) the removal of calls to memset() by highly optimizing
4452 compilers, and 2) cleansing with other values than 0, since those can
4453 be read through on certain media, for example a swap space on disk.
4456 *) Bugfix: client side session caching did not work with external caching,
4457 because the session->cipher setting was not restored when reloading
4458 from the external cache. This problem was masked, when
4459 SSL_OP_NETSCAPE_REUSE_CIPHER_CHANGE_BUG (part of SSL_OP_ALL) was set.
4460 (Found by Steve Haslam <steve@araqnid.ddts.net>.)
4463 *) Fix client_certificate (ssl/s2_clnt.c): The permissible total
4464 length of the REQUEST-CERTIFICATE message is 18 .. 34, not 17 .. 33.
4465 [Zeev Lieber <zeev-l@yahoo.com>]
4467 *) Undo an undocumented change introduced in 0.9.6e which caused
4468 repeated calls to OpenSSL_add_all_ciphers() and
4469 OpenSSL_add_all_digests() to be ignored, even after calling
4473 *) Change the default configuration reader to deal with last line not
4474 being properly terminated.
4477 *) Change X509_NAME_cmp() so it applies the special rules on handling
4478 DN values that are of type PrintableString, as well as RDNs of type
4479 emailAddress where the value has the type ia5String.
4480 [stefank@valicert.com via Richard Levitte]
4482 *) Add a SSL_SESS_CACHE_NO_INTERNAL_STORE flag to take over half
4483 the job SSL_SESS_CACHE_NO_INTERNAL_LOOKUP was inconsistently
4484 doing, define a new flag (SSL_SESS_CACHE_NO_INTERNAL) to be
4485 the bitwise-OR of the two for use by the majority of applications
4486 wanting this behaviour, and update the docs. The documented
4487 behaviour and actual behaviour were inconsistent and had been
4488 changing anyway, so this is more a bug-fix than a behavioural
4490 [Geoff Thorpe, diagnosed by Nadav Har'El]
4492 *) Don't impose a 16-byte length minimum on session IDs in ssl/s3_clnt.c
4493 (the SSL 3.0 and TLS 1.0 specifications allow any length up to 32 bytes).
4496 *) Fix initialization code race conditions in
4497 SSLv23_method(), SSLv23_client_method(), SSLv23_server_method(),
4498 SSLv2_method(), SSLv2_client_method(), SSLv2_server_method(),
4499 SSLv3_method(), SSLv3_client_method(), SSLv3_server_method(),
4500 TLSv1_method(), TLSv1_client_method(), TLSv1_server_method(),
4501 ssl2_get_cipher_by_char(),
4502 ssl3_get_cipher_by_char().
4503 [Patrick McCormick <patrick@tellme.com>, Bodo Moeller]
4505 *) Reorder cleanup sequence in SSL_CTX_free(): only remove the ex_data after
4506 the cached sessions are flushed, as the remove_cb() might use ex_data
4507 contents. Bug found by Sam Varshavchik <mrsam@courier-mta.com>
4508 (see [openssl.org #212]).
4509 [Geoff Thorpe, Lutz Jaenicke]
4511 *) Fix typo in OBJ_txt2obj which incorrectly passed the content
4512 length, instead of the encoding length to d2i_ASN1_OBJECT.
4515 Changes between 0.9.6f and 0.9.6g [9 Aug 2002]
4517 *) [In 0.9.6g-engine release:]
4518 Fix crypto/engine/vendor_defns/cswift.h for WIN32 (use '_stdcall').
4519 [Lynn Gazis <lgazis@rainbow.com>]
4521 Changes between 0.9.6e and 0.9.6f [8 Aug 2002]
4523 *) Fix ASN1 checks. Check for overflow by comparing with LONG_MAX
4524 and get fix the header length calculation.
4525 [Florian Weimer <Weimer@CERT.Uni-Stuttgart.DE>,
4526 Alon Kantor <alonk@checkpoint.com> (and others),
4529 *) Use proper error handling instead of 'assertions' in buffer
4530 overflow checks added in 0.9.6e. This prevents DoS (the
4531 assertions could call abort()).
4532 [Arne Ansper <arne@ats.cyber.ee>, Bodo Moeller]
4534 Changes between 0.9.6d and 0.9.6e [30 Jul 2002]
4536 *) Add various sanity checks to asn1_get_length() to reject
4537 the ASN1 length bytes if they exceed sizeof(long), will appear
4538 negative or the content length exceeds the length of the
4540 [Steve Henson, Adi Stav <stav@mercury.co.il>, James Yonan <jim@ntlp.com>]
4542 *) Fix cipher selection routines: ciphers without encryption had no flags
4543 for the cipher strength set and where therefore not handled correctly
4544 by the selection routines (PR #130).
4547 *) Fix EVP_dsa_sha macro.
4551 SSL_OP_DONT_INSERT_EMPTY_FRAGMENTS
4552 for disabling the SSL 3.0/TLS 1.0 CBC vulnerability countermeasure
4553 that was added in OpenSSL 0.9.6d.
4555 As the countermeasure turned out to be incompatible with some
4556 broken SSL implementations, the new option is part of SSL_OP_ALL.
4557 SSL_OP_ALL is usually employed when compatibility with weird SSL
4558 implementations is desired (e.g. '-bugs' option to 's_client' and
4559 's_server'), so the new option is automatically set in many
4563 *) Changes in security patch:
4565 Changes marked "(CHATS)" were sponsored by the Defense Advanced
4566 Research Projects Agency (DARPA) and Air Force Research Laboratory,
4567 Air Force Materiel Command, USAF, under agreement number
4570 *) Add various sanity checks to asn1_get_length() to reject
4571 the ASN1 length bytes if they exceed sizeof(long), will appear
4572 negative or the content length exceeds the length of the
4573 supplied buffer. (CVE-2002-0659)
4574 [Steve Henson, Adi Stav <stav@mercury.co.il>, James Yonan <jim@ntlp.com>]
4576 *) Assertions for various potential buffer overflows, not known to
4578 [Ben Laurie (CHATS)]
4580 *) Various temporary buffers to hold ASCII versions of integers were
4581 too small for 64 bit platforms. (CVE-2002-0655)
4582 [Matthew Byng-Maddick <mbm@aldigital.co.uk> and Ben Laurie (CHATS)>
4584 *) Remote buffer overflow in SSL3 protocol - an attacker could
4585 supply an oversized session ID to a client. (CVE-2002-0656)
4586 [Ben Laurie (CHATS)]
4588 *) Remote buffer overflow in SSL2 protocol - an attacker could
4589 supply an oversized client master key. (CVE-2002-0656)
4590 [Ben Laurie (CHATS)]
4592 Changes between 0.9.6c and 0.9.6d [9 May 2002]
4594 *) Fix crypto/asn1/a_sign.c so that 'parameters' is omitted (not
4595 encoded as NULL) with id-dsa-with-sha1.
4596 [Nils Larsch <nla@trustcenter.de>; problem pointed out by Bodo Moeller]
4598 *) Check various X509_...() return values in apps/req.c.
4599 [Nils Larsch <nla@trustcenter.de>]
4601 *) Fix BASE64 decode (EVP_DecodeUpdate) for data with CR/LF ended lines:
4602 an end-of-file condition would erronously be flagged, when the CRLF
4603 was just at the end of a processed block. The bug was discovered when
4604 processing data through a buffering memory BIO handing the data to a
4605 BASE64-decoding BIO. Bug fund and patch submitted by Pavel Tsekov
4606 <ptsekov@syntrex.com> and Nedelcho Stanev.
4609 *) Implement a countermeasure against a vulnerability recently found
4610 in CBC ciphersuites in SSL 3.0/TLS 1.0: Send an empty fragment
4611 before application data chunks to avoid the use of known IVs
4612 with data potentially chosen by the attacker.
4615 *) Fix length checks in ssl3_get_client_hello().
4618 *) TLS/SSL library bugfix: use s->s3->in_read_app_data differently
4619 to prevent ssl3_read_internal() from incorrectly assuming that
4620 ssl3_read_bytes() found application data while handshake
4621 processing was enabled when in fact s->s3->in_read_app_data was
4622 merely automatically cleared during the initial handshake.
4623 [Bodo Moeller; problem pointed out by Arne Ansper <arne@ats.cyber.ee>]
4625 *) Fix object definitions for Private and Enterprise: they were not
4626 recognized in their shortname (=lowercase) representation. Extend
4627 obj_dat.pl to issue an error when using undefined keywords instead
4628 of silently ignoring the problem (Svenning Sorensen
4629 <sss@sss.dnsalias.net>).
4632 *) Fix DH_generate_parameters() so that it works for 'non-standard'
4633 generators, i.e. generators other than 2 and 5. (Previously, the
4634 code did not properly initialise the 'add' and 'rem' values to
4635 BN_generate_prime().)
4637 In the new general case, we do not insist that 'generator' is
4638 actually a primitive root: This requirement is rather pointless;
4639 a generator of the order-q subgroup is just as good, if not
4643 *) Map new X509 verification errors to alerts. Discovered and submitted by
4644 Tom Wu <tom@arcot.com>.
4647 *) Fix ssl3_pending() (ssl/s3_lib.c) to prevent SSL_pending() from
4648 returning non-zero before the data has been completely received
4649 when using non-blocking I/O.
4650 [Bodo Moeller; problem pointed out by John Hughes]
4652 *) Some of the ciphers missed the strength entry (SSL_LOW etc).
4653 [Ben Laurie, Lutz Jaenicke]
4655 *) Fix bug in SSL_clear(): bad sessions were not removed (found by
4656 Yoram Zahavi <YoramZ@gilian.com>).
4659 *) Add information about CygWin 1.3 and on, and preserve proper
4660 configuration for the versions before that.
4661 [Corinna Vinschen <vinschen@redhat.com> and Richard Levitte]
4663 *) Make removal from session cache (SSL_CTX_remove_session()) more robust:
4664 check whether we deal with a copy of a session and do not delete from
4665 the cache in this case. Problem reported by "Izhar Shoshani Levi"
4666 <izhar@checkpoint.com>.
4669 *) Do not store session data into the internal session cache, if it
4670 is never intended to be looked up (SSL_SESS_CACHE_NO_INTERNAL_LOOKUP
4671 flag is set). Proposed by Aslam <aslam@funk.com>.
4674 *) Have ASN1_BIT_STRING_set_bit() really clear a bit when the requested
4678 *) [In 0.9.6d-engine release:]
4679 Fix a crashbug and a logic bug in hwcrhk_load_pubkey().
4680 [Toomas Kiisk <vix@cyber.ee> via Richard Levitte]
4682 *) Add the configuration target linux-s390x.
4683 [Neale Ferguson <Neale.Ferguson@SoftwareAG-USA.com> via Richard Levitte]
4685 *) The earlier bugfix for the SSL3_ST_SW_HELLO_REQ_C case of
4686 ssl3_accept (ssl/s3_srvr.c) incorrectly used a local flag
4687 variable as an indication that a ClientHello message has been
4688 received. As the flag value will be lost between multiple
4689 invocations of ssl3_accept when using non-blocking I/O, the
4690 function may not be aware that a handshake has actually taken
4691 place, thus preventing a new session from being added to the
4694 To avoid this problem, we now set s->new_session to 2 instead of
4695 using a local variable.
4696 [Lutz Jaenicke, Bodo Moeller]
4698 *) Bugfix: Return -1 from ssl3_get_server_done (ssl3/s3_clnt.c)
4699 if the SSL_R_LENGTH_MISMATCH error is detected.
4700 [Geoff Thorpe, Bodo Moeller]
4702 *) New 'shared_ldflag' column in Configure platform table.
4705 *) Fix EVP_CIPHER_mode macro.
4706 ["Dan S. Camper" <dan@bti.net>]
4708 *) Fix ssl3_read_bytes (ssl/s3_pkt.c): To ignore messages of unknown
4709 type, we must throw them away by setting rr->length to 0.
4710 [D P Chang <dpc@qualys.com>]
4712 Changes between 0.9.6b and 0.9.6c [21 dec 2001]
4714 *) Fix BN_rand_range bug pointed out by Dominikus Scherkl
4715 <Dominikus.Scherkl@biodata.com>. (The previous implementation
4716 worked incorrectly for those cases where range = 10..._2 and
4717 3*range is two bits longer than range.)
4720 *) Only add signing time to PKCS7 structures if it is not already
4724 *) Fix crypto/objects/objects.h: "ld-ce" should be "id-ce",
4725 OBJ_ld_ce should be OBJ_id_ce.
4726 Also some ip-pda OIDs in crypto/objects/objects.txt were
4727 incorrect (cf. RFC 3039).
4728 [Matt Cooper, Frederic Giudicelli, Bodo Moeller]
4730 *) Release CRYPTO_LOCK_DYNLOCK when CRYPTO_destroy_dynlockid()
4731 returns early because it has nothing to do.
4732 [Andy Schneider <andy.schneider@bjss.co.uk>]
4734 *) [In 0.9.6c-engine release:]
4735 Fix mutex callback return values in crypto/engine/hw_ncipher.c.
4736 [Andy Schneider <andy.schneider@bjss.co.uk>]
4738 *) [In 0.9.6c-engine release:]
4739 Add support for Cryptographic Appliance's keyserver technology.
4740 (Use engine 'keyclient')
4741 [Cryptographic Appliances and Geoff Thorpe]
4743 *) Add a configuration entry for OS/390 Unix. The C compiler 'c89'
4744 is called via tools/c89.sh because arguments have to be
4745 rearranged (all '-L' options must appear before the first object
4747 [Richard Shapiro <rshapiro@abinitio.com>]
4749 *) [In 0.9.6c-engine release:]
4750 Add support for Broadcom crypto accelerator cards, backported
4752 [Broadcom, Nalin Dahyabhai <nalin@redhat.com>, Mark Cox]
4754 *) [In 0.9.6c-engine release:]
4755 Add support for SureWare crypto accelerator cards from
4756 Baltimore Technologies. (Use engine 'sureware')
4757 [Baltimore Technologies and Mark Cox]
4759 *) [In 0.9.6c-engine release:]
4760 Add support for crypto accelerator cards from Accelerated
4761 Encryption Processing, www.aep.ie. (Use engine 'aep')
4762 [AEP Inc. and Mark Cox]
4764 *) Add a configuration entry for gcc on UnixWare.
4765 [Gary Benson <gbenson@redhat.com>]
4767 *) Change ssl/s2_clnt.c and ssl/s2_srvr.c so that received handshake
4768 messages are stored in a single piece (fixed-length part and
4769 variable-length part combined) and fix various bugs found on the way.
4772 *) Disable caching in BIO_gethostbyname(), directly use gethostbyname()
4773 instead. BIO_gethostbyname() does not know what timeouts are
4774 appropriate, so entries would stay in cache even when they have
4776 [Bodo Moeller; problem pointed out by Rich Salz <rsalz@zolera.com>
4778 *) Change ssl23_get_client_hello (ssl/s23_srvr.c) behaviour when
4779 faced with a pathologically small ClientHello fragment that does
4780 not contain client_version: Instead of aborting with an error,
4781 simply choose the highest available protocol version (i.e.,
4782 TLS 1.0 unless it is disabled). In practice, ClientHello
4783 messages are never sent like this, but this change gives us
4784 strictly correct behaviour at least for TLS.
4787 *) Fix SSL handshake functions and SSL_clear() such that SSL_clear()
4788 never resets s->method to s->ctx->method when called from within
4789 one of the SSL handshake functions.
4790 [Bodo Moeller; problem pointed out by Niko Baric]
4792 *) In ssl3_get_client_hello (ssl/s3_srvr.c), generate a fatal alert
4793 (sent using the client's version number) if client_version is
4794 smaller than the protocol version in use. Also change
4795 ssl23_get_client_hello (ssl/s23_srvr.c) to select TLS 1.0 if
4796 the client demanded SSL 3.0 but only TLS 1.0 is enabled; then
4797 the client will at least see that alert.
4800 *) Fix ssl3_get_message (ssl/s3_both.c) to handle message fragmentation
4804 *) Avoid infinite loop in ssl3_get_message (ssl/s3_both.c) if a
4805 client receives HelloRequest while in a handshake.
4806 [Bodo Moeller; bug noticed by Andy Schneider <andy.schneider@bjss.co.uk>]
4808 *) Bugfix in ssl3_accept (ssl/s3_srvr.c): Case SSL3_ST_SW_HELLO_REQ_C
4809 should end in 'break', not 'goto end' which circuments various
4810 cleanups done in state SSL_ST_OK. But session related stuff
4811 must be disabled for SSL_ST_OK in the case that we just sent a
4814 Also avoid some overhead by not calling ssl_init_wbio_buffer()
4815 before just sending a HelloRequest.
4816 [Bodo Moeller, Eric Rescorla <ekr@rtfm.com>]
4818 *) Fix ssl/s3_enc.c, ssl/t1_enc.c and ssl/s3_pkt.c so that we don't
4819 reveal whether illegal block cipher padding was found or a MAC
4820 verification error occured. (Neither SSLerr() codes nor alerts
4821 are directly visible to potential attackers, but the information
4822 may leak via logfiles.)
4824 Similar changes are not required for the SSL 2.0 implementation
4825 because the number of padding bytes is sent in clear for SSL 2.0,
4826 and the extra bytes are just ignored. However ssl/s2_pkt.c
4827 failed to verify that the purported number of padding bytes is in
4831 *) Add OpenUNIX-8 support including shared libraries
4832 (Boyd Lynn Gerber <gerberb@zenez.com>).
4835 *) Improve RSA_padding_check_PKCS1_OAEP() check again to avoid
4836 'wristwatch attack' using huge encoding parameters (cf.
4837 James H. Manger's CRYPTO 2001 paper). Note that the
4838 RSA_PKCS1_OAEP_PADDING case of RSA_private_decrypt() does not use
4839 encoding parameters and hence was not vulnerable.
4842 *) BN_sqr() bug fix.
4843 [Ulf Möller, reported by Jim Ellis <jim.ellis@cavium.com>]
4845 *) Rabin-Miller test analyses assume uniformly distributed witnesses,
4846 so use BN_pseudo_rand_range() instead of using BN_pseudo_rand()
4847 followed by modular reduction.
4848 [Bodo Moeller; pointed out by Adam Young <AYoung1@NCSUS.JNJ.COM>]
4850 *) Add BN_pseudo_rand_range() with obvious functionality: BN_rand_range()
4851 equivalent based on BN_pseudo_rand() instead of BN_rand().
4854 *) s3_srvr.c: allow sending of large client certificate lists (> 16 kB).
4855 This function was broken, as the check for a new client hello message
4856 to handle SGC did not allow these large messages.
4857 (Tracked down by "Douglas E. Engert" <deengert@anl.gov>.)
4860 *) Add alert descriptions for TLSv1 to SSL_alert_desc_string[_long]().
4863 *) Fix buggy behaviour of BIO_get_num_renegotiates() and BIO_ctrl()
4864 for BIO_C_GET_WRITE_BUF_SIZE ("Stephen Hinton" <shinton@netopia.com>).
4867 *) Rework the configuration and shared library support for Tru64 Unix.
4868 The configuration part makes use of modern compiler features and
4869 still retains old compiler behavior for those that run older versions
4870 of the OS. The shared library support part includes a variant that
4871 uses the RPATH feature, and is available through the special
4872 configuration target "alpha-cc-rpath", which will never be selected
4874 [Tim Mooney <mooney@dogbert.cc.ndsu.NoDak.edu> via Richard Levitte]
4876 *) In ssl3_get_key_exchange (ssl/s3_clnt.c), call ssl3_get_message()
4877 with the same message size as in ssl3_get_certificate_request().
4878 Otherwise, if no ServerKeyExchange message occurs, CertificateRequest
4879 messages might inadvertently be reject as too long.
4880 [Petr Lampa <lampa@fee.vutbr.cz>]
4882 *) Enhanced support for IA-64 Unix platforms (well, Linux and HP-UX).
4885 *) Modified SSL library such that the verify_callback that has been set
4886 specificly for an SSL object with SSL_set_verify() is actually being
4887 used. Before the change, a verify_callback set with this function was
4888 ignored and the verify_callback() set in the SSL_CTX at the time of
4889 the call was used. New function X509_STORE_CTX_set_verify_cb() introduced
4890 to allow the necessary settings.
4893 *) Initialize static variable in crypto/dsa/dsa_lib.c and crypto/dh/dh_lib.c
4894 explicitly to NULL, as at least on Solaris 8 this seems not always to be
4895 done automatically (in contradiction to the requirements of the C
4896 standard). This made problems when used from OpenSSH.
4899 *) In OpenSSL 0.9.6a and 0.9.6b, crypto/dh/dh_key.c ignored
4900 dh->length and always used
4902 BN_rand_range(priv_key, dh->p).
4904 BN_rand_range() is not necessary for Diffie-Hellman, and this
4905 specific range makes Diffie-Hellman unnecessarily inefficient if
4906 dh->length (recommended exponent length) is much smaller than the
4907 length of dh->p. We could use BN_rand_range() if the order of
4908 the subgroup was stored in the DH structure, but we only have
4913 BN_rand(priv_key, l, ...)
4915 where 'l' is dh->length if this is defined, or BN_num_bits(dh->p)-1
4921 RSA_eay_public_encrypt
4922 RSA_eay_private_decrypt
4923 RSA_eay_private_encrypt (signing)
4924 RSA_eay_public_decrypt (signature verification)
4926 (default implementations for RSA_public_encrypt,
4927 RSA_private_decrypt, RSA_private_encrypt, RSA_public_decrypt),
4928 always reject numbers >= n.
4931 *) In crypto/rand/md_rand.c, use a new short-time lock CRYPTO_LOCK_RAND2
4932 to synchronize access to 'locking_thread'. This is necessary on
4933 systems where access to 'locking_thread' (an 'unsigned long'
4934 variable) is not atomic.
4937 *) In crypto/rand/md_rand.c, set 'locking_thread' to current thread's ID
4938 *before* setting the 'crypto_lock_rand' flag. The previous code had
4939 a race condition if 0 is a valid thread ID.
4940 [Travis Vitek <vitek@roguewave.com>]
4942 *) Add support for shared libraries under Irix.
4943 [Albert Chin-A-Young <china@thewrittenword.com>]
4945 *) Add configuration option to build on Linux on both big-endian and
4947 [Ralf Baechle <ralf@uni-koblenz.de>]
4949 *) Add the possibility to create shared libraries on HP-UX.
4952 Changes between 0.9.6a and 0.9.6b [9 Jul 2001]
4954 *) Change ssleay_rand_bytes (crypto/rand/md_rand.c)
4955 to avoid a SSLeay/OpenSSL PRNG weakness pointed out by
4956 Markku-Juhani O. Saarinen <markku-juhani.saarinen@nokia.com>:
4957 PRNG state recovery was possible based on the output of
4958 one PRNG request appropriately sized to gain knowledge on
4959 'md' followed by enough consecutive 1-byte PRNG requests
4960 to traverse all of 'state'.
4962 1. When updating 'md_local' (the current thread's copy of 'md')
4963 during PRNG output generation, hash all of the previous
4964 'md_local' value, not just the half used for PRNG output.
4966 2. Make the number of bytes from 'state' included into the hash
4967 independent from the number of PRNG bytes requested.
4969 The first measure alone would be sufficient to avoid
4970 Markku-Juhani's attack. (Actually it had never occurred
4971 to me that the half of 'md_local' used for chaining was the
4972 half from which PRNG output bytes were taken -- I had always
4973 assumed that the secret half would be used.) The second
4974 measure makes sure that additional data from 'state' is never
4975 mixed into 'md_local' in small portions; this heuristically
4976 further strengthens the PRNG.
4979 *) Fix crypto/bn/asm/mips3.s.
4982 *) When only the key is given to "enc", the IV is undefined. Print out
4983 an error message in this case.
4986 *) Handle special case when X509_NAME is empty in X509 printing routines.
4989 *) In dsa_do_verify (crypto/dsa/dsa_ossl.c), verify that r and s are
4990 positive and less than q.
4993 *) Don't change *pointer in CRYPTO_add_lock() is add_lock_callback is
4994 used: it isn't thread safe and the add_lock_callback should handle
4996 [Paul Rose <Paul.Rose@bridge.com>]
4998 *) Verify that incoming data obeys the block size in
4999 ssl3_enc (ssl/s3_enc.c) and tls1_enc (ssl/t1_enc.c).
5003 [Ulf Möller, Bodo Möller]
5005 *) The countermeasure against Bleichbacher's attack on PKCS #1 v1.5
5006 RSA encryption was accidentally removed in s3_srvr.c in OpenSSL 0.9.5
5007 when fixing the server behaviour for backwards-compatible 'client
5008 hello' messages. (Note that the attack is impractical against
5009 SSL 3.0 and TLS 1.0 anyway because length and version checking
5010 means that the probability of guessing a valid ciphertext is
5011 around 2^-40; see section 5 in Bleichenbacher's CRYPTO '98
5014 Before 0.9.5, the countermeasure (hide the error by generating a
5015 random 'decryption result') did not work properly because
5016 ERR_clear_error() was missing, meaning that SSL_get_error() would
5017 detect the supposedly ignored error.
5019 Both problems are now fixed.
5022 *) In crypto/bio/bf_buff.c, increase DEFAULT_BUFFER_SIZE to 4096
5023 (previously it was 1024).
5026 *) Fix for compatibility mode trust settings: ignore trust settings
5027 unless some valid trust or reject settings are present.
5030 *) Fix for blowfish EVP: its a variable length cipher.
5033 *) Fix various bugs related to DSA S/MIME verification. Handle missing
5034 parameters in DSA public key structures and return an error in the
5035 DSA routines if parameters are absent.
5038 *) In versions up to 0.9.6, RAND_file_name() resorted to file ".rnd"
5039 in the current directory if neither $RANDFILE nor $HOME was set.
5040 RAND_file_name() in 0.9.6a returned NULL in this case. This has
5041 caused some confusion to Windows users who haven't defined $HOME.
5042 Thus RAND_file_name() is changed again: e_os.h can define a
5043 DEFAULT_HOME, which will be used if $HOME is not set.
5044 For Windows, we use "C:"; on other platforms, we still require
5045 environment variables.
5047 *) Move 'if (!initialized) RAND_poll()' into regions protected by
5048 CRYPTO_LOCK_RAND. This is not strictly necessary, but avoids
5049 having multiple threads call RAND_poll() concurrently.
5052 *) In crypto/rand/md_rand.c, replace 'add_do_not_lock' flag by a
5053 combination of a flag and a thread ID variable.
5054 Otherwise while one thread is in ssleay_rand_bytes (which sets the
5055 flag), *other* threads can enter ssleay_add_bytes without obeying
5056 the CRYPTO_LOCK_RAND lock (and may even illegally release the lock
5057 that they do not hold after the first thread unsets add_do_not_lock).
5060 *) Change bctest again: '-x' expressions are not available in all
5064 Changes between 0.9.6 and 0.9.6a [5 Apr 2001]
5066 *) Fix a couple of memory leaks in PKCS7_dataDecode()
5067 [Steve Henson, reported by Heyun Zheng <hzheng@atdsprint.com>]
5069 *) Change Configure and Makefiles to provide EXE_EXT, which will contain
5070 the default extension for executables, if any. Also, make the perl
5071 scripts that use symlink() to test if it really exists and use "cp"
5072 if it doesn't. All this made OpenSSL compilable and installable in
5076 *) Fix for asn1_GetSequence() for indefinite length constructed data.
5077 If SEQUENCE is length is indefinite just set c->slen to the total
5078 amount of data available.
5079 [Steve Henson, reported by shige@FreeBSD.org]
5080 [This change does not apply to 0.9.7.]
5082 *) Change bctest to avoid here-documents inside command substitution
5083 (workaround for FreeBSD /bin/sh bug).
5084 For compatibility with Ultrix, avoid shell functions (introduced
5085 in the bctest version that searches along $PATH).
5088 *) Rename 'des_encrypt' to 'des_encrypt1'. This avoids the clashes
5089 with des_encrypt() defined on some operating systems, like Solaris
5093 *) Check the result of RSA-CRT (see D. Boneh, R. DeMillo, R. Lipton:
5094 On the Importance of Eliminating Errors in Cryptographic
5095 Computations, J. Cryptology 14 (2001) 2, 101-119,
5096 http://theory.stanford.edu/~dabo/papers/faults.ps.gz).
5099 *) MIPS assembler BIGNUM division bug fix.
5102 *) Disabled incorrect Alpha assembler code.
5105 *) Fix PKCS#7 decode routines so they correctly update the length
5106 after reading an EOC for the EXPLICIT tag.
5108 [This change does not apply to 0.9.7.]
5110 *) Fix bug in PKCS#12 key generation routines. This was triggered
5111 if a 3DES key was generated with a 0 initial byte. Include
5112 PKCS12_BROKEN_KEYGEN compilation option to retain the old
5113 (but broken) behaviour.
5116 *) Enhance bctest to search for a working bc along $PATH and print
5118 [Tim Rice <tim@multitalents.net> via Richard Levitte]
5120 *) Fix memory leaks in err.c: free err_data string if necessary;
5121 don't write to the wrong index in ERR_set_error_data.
5124 *) Implement ssl23_peek (analogous to ssl23_read), which previously
5128 *) Replace rdtsc with _emit statements for VC++ version 5.
5129 [Jeremy Cooper <jeremy@baymoo.org>]
5131 *) Make it possible to reuse SSLv2 sessions.
5134 *) In copy_email() check for >= 0 as a return value for
5135 X509_NAME_get_index_by_NID() since 0 is a valid index.
5136 [Steve Henson reported by Massimiliano Pala <madwolf@opensca.org>]
5138 *) Avoid coredump with unsupported or invalid public keys by checking if
5139 X509_get_pubkey() fails in PKCS7_verify(). Fix memory leak when
5140 PKCS7_verify() fails with non detached data.
5143 *) Don't use getenv in library functions when run as setuid/setgid.
5144 New function OPENSSL_issetugid().
5147 *) Avoid false positives in memory leak detection code (crypto/mem_dbg.c)
5148 due to incorrect handling of multi-threading:
5150 1. Fix timing glitch in the MemCheck_off() portion of CRYPTO_mem_ctrl().
5152 2. Fix logical glitch in is_MemCheck_on() aka CRYPTO_is_mem_check_on().
5154 3. Count how many times MemCheck_off() has been called so that
5155 nested use can be treated correctly. This also avoids
5156 inband-signalling in the previous code (which relied on the
5157 assumption that thread ID 0 is impossible).
5160 *) Add "-rand" option also to s_client and s_server.
5163 *) Fix CPU detection on Irix 6.x.
5164 [Kurt Hockenbury <khockenb@stevens-tech.edu> and
5165 "Bruce W. Forsberg" <bruce.forsberg@baesystems.com>]
5167 *) Fix X509_NAME bug which produced incorrect encoding if X509_NAME
5170 [This change does not apply to 0.9.7.]
5172 *) Use the cached encoding of an X509_NAME structure rather than
5173 copying it. This is apparently the reason for the libsafe "errors"
5174 but the code is actually correct.
5177 *) Add new function BN_rand_range(), and fix DSA_sign_setup() to prevent
5178 Bleichenbacher's DSA attack.
5179 Extend BN_[pseudo_]rand: As before, top=1 forces the highest two bits
5180 to be set and top=0 forces the highest bit to be set; top=-1 is new
5181 and leaves the highest bit random.
5182 [Ulf Moeller, Bodo Moeller]
5184 *) In the NCONF_...-based implementations for CONF_... queries
5185 (crypto/conf/conf_lib.c), if the input LHASH is NULL, avoid using
5186 a temporary CONF structure with the data component set to NULL
5187 (which gives segmentation faults in lh_retrieve).
5188 Instead, use NULL for the CONF pointer in CONF_get_string and
5189 CONF_get_number (which may use environment variables) and directly
5190 return NULL from CONF_get_section.
5193 *) Fix potential buffer overrun for EBCDIC.
5196 *) Tolerate nonRepudiation as being valid for S/MIME signing and certSign
5197 keyUsage if basicConstraints absent for a CA.
5200 *) Make SMIME_write_PKCS7() write mail header values with a format that
5201 is more generally accepted (no spaces before the semicolon), since
5202 some programs can't parse those values properly otherwise. Also make
5203 sure BIO's that break lines after each write do not create invalid
5207 *) Make the CRL encoding routines work with empty SEQUENCE OF. The
5208 macros previously used would not encode an empty SEQUENCE OF
5209 and break the signature.
5211 [This change does not apply to 0.9.7.]
5213 *) Zero the premaster secret after deriving the master secret in
5217 *) Add some EVP_add_digest_alias registrations (as found in
5218 OpenSSL_add_all_digests()) to SSL_library_init()
5219 aka OpenSSL_add_ssl_algorithms(). This provides improved
5220 compatibility with peers using X.509 certificates
5221 with unconventional AlgorithmIdentifier OIDs.
5224 *) Fix for Irix with NO_ASM.
5225 ["Bruce W. Forsberg" <bruce.forsberg@baesystems.com>]
5227 *) ./config script fixes.
5228 [Ulf Moeller, Richard Levitte]
5230 *) Fix 'openssl passwd -1'.
5233 *) Change PKCS12_key_gen_asc() so it can cope with non null
5234 terminated strings whose length is passed in the passlen
5235 parameter, for example from PEM callbacks. This was done
5236 by adding an extra length parameter to asc2uni().
5237 [Steve Henson, reported by <oddissey@samsung.co.kr>]
5239 *) Fix C code generated by 'openssl dsaparam -C': If a BN_bin2bn
5240 call failed, free the DSA structure.
5243 *) Fix to uni2asc() to cope with zero length Unicode strings.
5244 These are present in some PKCS#12 files.
5247 *) Increase s2->wbuf allocation by one byte in ssl2_new (ssl/s2_lib.c).
5248 Otherwise do_ssl_write (ssl/s2_pkt.c) will write beyond buffer limits
5249 when writing a 32767 byte record.
5250 [Bodo Moeller; problem reported by Eric Day <eday@concentric.net>]
5252 *) In RSA_eay_public_{en,ed}crypt and RSA_eay_mod_exp (rsa_eay.c),
5253 obtain lock CRYPTO_LOCK_RSA before setting rsa->_method_mod_{n,p,q}.
5255 (RSA objects have a reference count access to which is protected
5256 by CRYPTO_LOCK_RSA [see rsa_lib.c, s3_srvr.c, ssl_cert.c, ssl_rsa.c],
5257 so they are meant to be shared between threads.)
5258 [Bodo Moeller, Geoff Thorpe; original patch submitted by
5259 "Reddie, Steven" <Steven.Reddie@ca.com>]
5261 *) Fix a deadlock in CRYPTO_mem_leaks().
5264 *) Use better test patterns in bntest.
5267 *) rand_win.c fix for Borland C.
5270 *) BN_rshift bugfix for n == 0.
5273 *) Add a 'bctest' script that checks for some known 'bc' bugs
5274 so that 'make test' does not abort just because 'bc' is broken.
5277 *) Store verify_result within SSL_SESSION also for client side to
5278 avoid potential security hole. (Re-used sessions on the client side
5279 always resulted in verify_result==X509_V_OK, not using the original
5280 result of the server certificate verification.)
5283 *) Fix ssl3_pending: If the record in s->s3->rrec is not of type
5284 SSL3_RT_APPLICATION_DATA, return 0.
5285 Similarly, change ssl2_pending to return 0 if SSL_in_init(s) is true.
5289 Both ssl2_peek and ssl3_peek, which were totally broken in earlier
5290 releases, have been re-implemented by renaming the previous
5291 implementations of ssl2_read and ssl3_read to ssl2_read_internal
5292 and ssl3_read_internal, respectively, and adding 'peek' parameters
5293 to them. The new ssl[23]_{read,peek} functions are calls to
5294 ssl[23]_read_internal with the 'peek' flag set appropriately.
5295 A 'peek' parameter has also been added to ssl3_read_bytes, which
5296 does the actual work for ssl3_read_internal.
5299 *) Initialise "ex_data" member of RSA/DSA/DH structures prior to calling
5300 the method-specific "init()" handler. Also clean up ex_data after
5301 calling the method-specific "finish()" handler. Previously, this was
5302 happening the other way round.
5305 *) Increase BN_CTX_NUM (the number of BIGNUMs in a BN_CTX) to 16.
5306 The previous value, 12, was not always sufficient for BN_mod_exp().
5309 *) Make sure that shared libraries get the internal name engine with
5310 the full version number and not just 0. This should mark the
5311 shared libraries as not backward compatible. Of course, this should
5312 be changed again when we can guarantee backward binary compatibility.
5315 *) Fix typo in get_cert_by_subject() in by_dir.c
5316 [Jean-Marc Desperrier <jean-marc.desperrier@certplus.com>]
5318 *) Rework the system to generate shared libraries:
5320 - Make note of the expected extension for the shared libraries and
5321 if there is a need for symbolic links from for example libcrypto.so.0
5322 to libcrypto.so.0.9.7. There is extended info in Configure for
5325 - Make as few rebuilds of the shared libraries as possible.
5327 - Still avoid linking the OpenSSL programs with the shared libraries.
5329 - When installing, install the shared libraries separately from the
5333 *) Fix SSL_CTX_set_read_ahead macro to actually use its argument.
5335 Copy SSL_CTX's read_ahead flag to SSL object directly in SSL_new
5336 and not in SSL_clear because the latter is also used by the
5337 accept/connect functions; previously, the settings made by
5338 SSL_set_read_ahead would be lost during the handshake.
5339 [Bodo Moeller; problems reported by Anders Gertz <gertz@epact.se>]
5341 *) Correct util/mkdef.pl to be selective about disabled algorithms.
5342 Previously, it would create entries for disableed algorithms no
5346 *) Added several new manual pages for SSL_* function.
5349 Changes between 0.9.5a and 0.9.6 [24 Sep 2000]
5351 *) In ssl23_get_client_hello, generate an error message when faced
5352 with an initial SSL 3.0/TLS record that is too small to contain the
5353 first two bytes of the ClientHello message, i.e. client_version.
5354 (Note that this is a pathologic case that probably has never happened
5355 in real life.) The previous approach was to use the version number
5356 from the record header as a substitute; but our protocol choice
5357 should not depend on that one because it is not authenticated
5358 by the Finished messages.
5361 *) More robust randomness gathering functions for Windows.
5362 [Jeffrey Altman <jaltman@columbia.edu>]
5364 *) For compatibility reasons if the flag X509_V_FLAG_ISSUER_CHECK is
5365 not set then we don't setup the error code for issuer check errors
5366 to avoid possibly overwriting other errors which the callback does
5367 handle. If an application does set the flag then we assume it knows
5368 what it is doing and can handle the new informational codes
5372 *) Fix for a nasty bug in ASN1_TYPE handling. ASN1_TYPE is used for
5373 a general "ANY" type, as such it should be able to decode anything
5374 including tagged types. However it didn't check the class so it would
5375 wrongly interpret tagged types in the same way as their universal
5376 counterpart and unknown types were just rejected. Changed so that the
5377 tagged and unknown types are handled in the same way as a SEQUENCE:
5378 that is the encoding is stored intact. There is also a new type
5379 "V_ASN1_OTHER" which is used when the class is not universal, in this
5380 case we have no idea what the actual type is so we just lump them all
5384 *) On VMS, stdout may very well lead to a file that is written to
5385 in a record-oriented fashion. That means that every write() will
5386 write a separate record, which will be read separately by the
5387 programs trying to read from it. This can be very confusing.
5389 The solution is to put a BIO filter in the way that will buffer
5390 text until a linefeed is reached, and then write everything a
5391 line at a time, so every record written will be an actual line,
5392 not chunks of lines and not (usually doesn't happen, but I've
5393 seen it once) several lines in one record. BIO_f_linebuffer() is
5396 Currently, it's a VMS-only method, because that's where it has
5397 been tested well enough.
5400 *) Remove 'optimized' squaring variant in BN_mod_mul_montgomery,
5401 it can return incorrect results.
5402 (Note: The buggy variant was not enabled in OpenSSL 0.9.5a,
5403 but it was in 0.9.6-beta[12].)
5406 *) Disable the check for content being present when verifying detached
5407 signatures in pk7_smime.c. Some versions of Netscape (wrongly)
5408 include zero length content when signing messages.
5411 *) New BIO_shutdown_wr macro, which invokes the BIO_C_SHUTDOWN_WR
5412 BIO_ctrl (for BIO pairs).
5415 *) Add DSO method for VMS.
5418 *) Bug fix: Montgomery multiplication could produce results with the
5422 *) Add RPM specification openssl.spec and modify it to build three
5423 packages. The default package contains applications, application
5424 documentation and run-time libraries. The devel package contains
5425 include files, static libraries and function documentation. The
5426 doc package contains the contents of the doc directory. The original
5427 openssl.spec was provided by Damien Miller <djm@mindrot.org>.
5430 *) Add a large number of documentation files for many SSL routines.
5431 [Lutz Jaenicke <Lutz.Jaenicke@aet.TU-Cottbus.DE>]
5433 *) Add a configuration entry for Sony News 4.
5434 [NAKAJI Hiroyuki <nakaji@tutrp.tut.ac.jp>]
5436 *) Don't set the two most significant bits to one when generating a
5437 random number < q in the DSA library.
5440 *) New SSL API mode 'SSL_MODE_AUTO_RETRY'. This disables the default
5441 behaviour that SSL_read may result in SSL_ERROR_WANT_READ (even if
5442 the underlying transport is blocking) if a handshake took place.
5443 (The default behaviour is needed by applications such as s_client
5444 and s_server that use select() to determine when to use SSL_read;
5445 but for applications that know in advance when to expect data, it
5446 just makes things more complicated.)
5449 *) Add RAND_egd_bytes(), which gives control over the number of bytes read
5453 *) Add a few more EBCDIC conditionals that make `req' and `x509'
5454 work better on such systems.
5455 [Martin Kraemer <Martin.Kraemer@MchP.Siemens.De>]
5457 *) Add two demo programs for PKCS12_parse() and PKCS12_create().
5458 Update PKCS12_parse() so it copies the friendlyName and the
5459 keyid to the certificates aux info.
5462 *) Fix bug in PKCS7_verify() which caused an infinite loop
5463 if there was more than one signature.
5464 [Sven Uszpelkat <su@celocom.de>]
5466 *) Major change in util/mkdef.pl to include extra information
5467 about each symbol, as well as presentig variables as well
5468 as functions. This change means that there's n more need
5469 to rebuild the .num files when some algorithms are excluded.
5472 *) Allow the verify time to be set by an application,
5473 rather than always using the current time.
5476 *) Phase 2 verify code reorganisation. The certificate
5477 verify code now looks up an issuer certificate by a
5478 number of criteria: subject name, authority key id
5479 and key usage. It also verifies self signed certificates
5480 by the same criteria. The main comparison function is
5481 X509_check_issued() which performs these checks.
5483 Lot of changes were necessary in order to support this
5484 without completely rewriting the lookup code.
5486 Authority and subject key identifier are now cached.
5488 The LHASH 'certs' is X509_STORE has now been replaced
5489 by a STACK_OF(X509_OBJECT). This is mainly because an
5490 LHASH can't store or retrieve multiple objects with
5491 the same hash value.
5493 As a result various functions (which were all internal
5494 use only) have changed to handle the new X509_STORE
5495 structure. This will break anything that messed round
5496 with X509_STORE internally.
5498 The functions X509_STORE_add_cert() now checks for an
5499 exact match, rather than just subject name.
5501 The X509_STORE API doesn't directly support the retrieval
5502 of multiple certificates matching a given criteria, however
5503 this can be worked round by performing a lookup first
5504 (which will fill the cache with candidate certificates)
5505 and then examining the cache for matches. This is probably
5506 the best we can do without throwing out X509_LOOKUP
5507 entirely (maybe later...).
5509 The X509_VERIFY_CTX structure has been enhanced considerably.
5511 All certificate lookup operations now go via a get_issuer()
5512 callback. Although this currently uses an X509_STORE it
5513 can be replaced by custom lookups. This is a simple way
5514 to bypass the X509_STORE hackery necessary to make this
5515 work and makes it possible to use more efficient techniques
5516 in future. A very simple version which uses a simple
5517 STACK for its trusted certificate store is also provided
5518 using X509_STORE_CTX_trusted_stack().
5520 The verify_cb() and verify() callbacks now have equivalents
5521 in the X509_STORE_CTX structure.
5523 X509_STORE_CTX also has a 'flags' field which can be used
5524 to customise the verify behaviour.
5527 *) Add new PKCS#7 signing option PKCS7_NOSMIMECAP which
5528 excludes S/MIME capabilities.
5531 *) When a certificate request is read in keep a copy of the
5532 original encoding of the signed data and use it when outputing
5533 again. Signatures then use the original encoding rather than
5534 a decoded, encoded version which may cause problems if the
5535 request is improperly encoded.
5538 *) For consistency with other BIO_puts implementations, call
5539 buffer_write(b, ...) directly in buffer_puts instead of calling
5542 In BIO_puts, increment b->num_write as in BIO_write.
5543 [Peter.Sylvester@EdelWeb.fr]
5545 *) Fix BN_mul_word for the case where the word is 0. (We have to use
5546 BN_zero, we may not return a BIGNUM with an array consisting of
5550 *) Avoid calling abort() from within the library when problems are
5551 detected, except if preprocessor symbols have been defined
5552 (such as REF_CHECK, BN_DEBUG etc.).
5555 *) New openssl application 'rsautl'. This utility can be
5556 used for low level RSA operations. DER public key
5557 BIO/fp routines also added.
5560 *) New Configure entry and patches for compiling on QNX 4.
5561 [Andreas Schneider <andreas@ds3.etech.fh-hamburg.de>]
5563 *) A demo state-machine implementation was sponsored by
5564 Nuron (http://www.nuron.com/) and is now available in
5565 demos/state_machine.
5568 *) New options added to the 'dgst' utility for signature
5569 generation and verification.
5572 *) Unrecognized PKCS#7 content types are now handled via a
5573 catch all ASN1_TYPE structure. This allows unsupported
5574 types to be stored as a "blob" and an application can
5575 encode and decode it manually.
5578 *) Fix various signed/unsigned issues to make a_strex.c
5580 [Oscar Jacobsson <oscar.jacobsson@celocom.com>]
5582 *) ASN1 fixes. i2d_ASN1_OBJECT was not returning the correct
5583 length if passed a buffer. ASN1_INTEGER_to_BN failed
5584 if passed a NULL BN and its argument was negative.
5585 [Steve Henson, pointed out by Sven Heiberg <sven@tartu.cyber.ee>]
5587 *) Modification to PKCS#7 encoding routines to output definite
5588 length encoding. Since currently the whole structures are in
5589 memory there's not real point in using indefinite length
5590 constructed encoding. However if OpenSSL is compiled with
5591 the flag PKCS7_INDEFINITE_ENCODING the old form is used.
5594 *) Added BIO_vprintf() and BIO_vsnprintf().
5597 *) Added more prefixes to parse for in the the strings written
5598 through a logging bio, to cover all the levels that are available
5599 through syslog. The prefixes are now:
5601 PANIC, EMERG, EMR => LOG_EMERG
5602 ALERT, ALR => LOG_ALERT
5603 CRIT, CRI => LOG_CRIT
5604 ERROR, ERR => LOG_ERR
5605 WARNING, WARN, WAR => LOG_WARNING
5606 NOTICE, NOTE, NOT => LOG_NOTICE
5607 INFO, INF => LOG_INFO
5608 DEBUG, DBG => LOG_DEBUG
5610 and as before, if none of those prefixes are present at the
5611 beginning of the string, LOG_ERR is chosen.
5613 On Win32, the LOG_* levels are mapped according to this:
5615 LOG_EMERG, LOG_ALERT, LOG_CRIT, LOG_ERR => EVENTLOG_ERROR_TYPE
5616 LOG_WARNING => EVENTLOG_WARNING_TYPE
5617 LOG_NOTICE, LOG_INFO, LOG_DEBUG => EVENTLOG_INFORMATION_TYPE
5621 *) Made it possible to reconfigure with just the configuration
5622 argument "reconf" or "reconfigure". The command line arguments
5623 are stored in Makefile.ssl in the variable CONFIGURE_ARGS,
5624 and are retrieved from there when reconfiguring.
5628 [Assar Westerlund <assar@sics.se>, Richard Levitte]
5630 *) Add the arguments -CAfile and -CApath to the pkcs12 utility.
5633 *) The obj_dat.pl script was messing up the sorting of object
5634 names. The reason was that it compared the quoted version
5635 of strings as a result "OCSP" > "OCSP Signing" because
5636 " > SPACE. Changed script to store unquoted versions of
5637 names and add quotes on output. It was also omitting some
5638 names from the lookup table if they were given a default
5639 value (that is if SN is missing it is given the same
5640 value as LN and vice versa), these are now added on the
5641 grounds that if an object has a name we should be able to
5642 look it up. Finally added warning output when duplicate
5643 short or long names are found.
5646 *) Changes needed for Tandem NSK.
5647 [Scott Uroff <scott@xypro.com>]
5649 *) Fix SSL 2.0 rollback checking: Due to an off-by-one error in
5650 RSA_padding_check_SSLv23(), special padding was never detected
5651 and thus the SSL 3.0/TLS 1.0 countermeasure against protocol
5652 version rollback attacks was not effective.
5654 In s23_clnt.c, don't use special rollback-attack detection padding
5655 (RSA_SSLV23_PADDING) if SSL 2.0 is the only protocol enabled in the
5656 client; similarly, in s23_srvr.c, don't do the rollback check if
5657 SSL 2.0 is the only protocol enabled in the server.
5660 *) Make it possible to get hexdumps of unprintable data with 'openssl
5661 asn1parse'. By implication, the functions ASN1_parse_dump() and
5662 BIO_dump_indent() are added.
5665 *) New functions ASN1_STRING_print_ex() and X509_NAME_print_ex()
5666 these print out strings and name structures based on various
5667 flags including RFC2253 support and proper handling of
5668 multibyte characters. Added options to the 'x509' utility
5669 to allow the various flags to be set.
5672 *) Various fixes to use ASN1_TIME instead of ASN1_UTCTIME.
5673 Also change the functions X509_cmp_current_time() and
5674 X509_gmtime_adj() work with an ASN1_TIME structure,
5675 this will enable certificates using GeneralizedTime in validity
5676 dates to be checked.
5679 *) Make the NEG_PUBKEY_BUG code (which tolerates invalid
5680 negative public key encodings) on by default,
5681 NO_NEG_PUBKEY_BUG can be set to disable it.
5684 *) New function c2i_ASN1_OBJECT() which acts on ASN1_OBJECT
5685 content octets. An i2c_ASN1_OBJECT is unnecessary because
5686 the encoding can be trivially obtained from the structure.
5689 *) crypto/err.c locking bugfix: Use write locks (CRYPTO_w_[un]lock),
5690 not read locks (CRYPTO_r_[un]lock).
5693 *) A first attempt at creating official support for shared
5694 libraries through configuration. I've kept it so the
5695 default is static libraries only, and the OpenSSL programs
5696 are always statically linked for now, but there are
5697 preparations for dynamic linking in place.
5698 This has been tested on Linux and Tru64.
5701 *) Randomness polling function for Win9x, as described in:
5702 Peter Gutmann, Software Generation of Practically Strong
5706 *) Fix so PRNG is seeded in req if using an already existing
5710 *) New options to smime application. -inform and -outform
5711 allow alternative formats for the S/MIME message including
5712 PEM and DER. The -content option allows the content to be
5713 specified separately. This should allow things like Netscape
5714 form signing output easier to verify.
5717 *) Fix the ASN1 encoding of tags using the 'long form'.
5720 *) New ASN1 functions, i2c_* and c2i_* for INTEGER and BIT
5721 STRING types. These convert content octets to and from the
5722 underlying type. The actual tag and length octets are
5723 already assumed to have been read in and checked. These
5724 are needed because all other string types have virtually
5725 identical handling apart from the tag. By having versions
5726 of the ASN1 functions that just operate on content octets
5727 IMPLICIT tagging can be handled properly. It also allows
5728 the ASN1_ENUMERATED code to be cut down because ASN1_ENUMERATED
5729 and ASN1_INTEGER are identical apart from the tag.
5732 *) Change the handling of OID objects as follows:
5734 - New object identifiers are inserted in objects.txt, following
5735 the syntax given in objects.README.
5736 - objects.pl is used to process obj_mac.num and create a new
5738 - obj_dat.pl is used to create a new obj_dat.h, using the data in
5741 This is currently kind of a hack, and the perl code in objects.pl
5742 isn't very elegant, but it works as I intended. The simplest way
5743 to check that it worked correctly is to look in obj_dat.h and
5744 check the array nid_objs and make sure the objects haven't moved
5745 around (this is important!). Additions are OK, as well as
5746 consistent name changes.
5749 *) Add BSD-style MD5-based passwords to 'openssl passwd' (option '-1').
5752 *) Addition of the command line parameter '-rand file' to 'openssl req'.
5753 The given file adds to whatever has already been seeded into the
5754 random pool through the RANDFILE configuration file option or
5755 environment variable, or the default random state file.
5758 *) mkstack.pl now sorts each macro group into lexical order.
5759 Previously the output order depended on the order the files
5760 appeared in the directory, resulting in needless rewriting
5764 *) Patches to make OpenSSL compile under Win32 again. Mostly
5765 work arounds for the VC++ problem that it treats func() as
5766 func(void). Also stripped out the parts of mkdef.pl that
5767 added extra typesafe functions: these no longer exist.
5770 *) Reorganisation of the stack code. The macros are now all
5771 collected in safestack.h . Each macro is defined in terms of
5772 a "stack macro" of the form SKM_<name>(type, a, b). The
5773 DEBUG_SAFESTACK is now handled in terms of function casts,
5774 this has the advantage of retaining type safety without the
5775 use of additional functions. If DEBUG_SAFESTACK is not defined
5776 then the non typesafe macros are used instead. Also modified the
5777 mkstack.pl script to handle the new form. Needs testing to see
5778 if which (if any) compilers it chokes and maybe make DEBUG_SAFESTACK
5779 the default if no major problems. Similar behaviour for ASN1_SET_OF
5780 and PKCS12_STACK_OF.
5783 *) When some versions of IIS use the 'NET' form of private key the
5784 key derivation algorithm is different. Normally MD5(password) is
5785 used as a 128 bit RC4 key. In the modified case
5786 MD5(MD5(password) + "SGCKEYSALT") is used insted. Added some
5787 new functions i2d_RSA_NET(), d2i_RSA_NET() etc which are the same
5788 as the old Netscape_RSA functions except they have an additional
5789 'sgckey' parameter which uses the modified algorithm. Also added
5790 an -sgckey command line option to the rsa utility. Thanks to
5791 Adrian Peck <bertie@ncipher.com> for posting details of the modified
5792 algorithm to openssl-dev.
5795 *) The evp_local.h macros were using 'c.##kname' which resulted in
5796 invalid expansion on some systems (SCO 5.0.5 for example).
5797 Corrected to 'c.kname'.
5798 [Phillip Porch <root@theporch.com>]
5800 *) New X509_get1_email() and X509_REQ_get1_email() functions that return
5801 a STACK of email addresses from a certificate or request, these look
5802 in the subject name and the subject alternative name extensions and
5803 omit any duplicate addresses.
5806 *) Re-implement BN_mod_exp2_mont using independent (and larger) windows.
5807 This makes DSA verification about 2 % faster.
5810 *) Increase maximum window size in BN_mod_exp_... to 6 bits instead of 5
5811 (meaning that now 2^5 values will be precomputed, which is only 4 KB
5812 plus overhead for 1024 bit moduli).
5813 This makes exponentiations about 0.5 % faster for 1024 bit
5814 exponents (as measured by "openssl speed rsa2048").
5817 *) Rename memory handling macros to avoid conflicts with other
5819 Malloc => OPENSSL_malloc
5820 Malloc_locked => OPENSSL_malloc_locked
5821 Realloc => OPENSSL_realloc
5822 Free => OPENSSL_free
5825 *) New function BN_mod_exp_mont_word for small bases (roughly 15%
5826 faster than BN_mod_exp_mont, i.e. 7% for a full DH exchange).
5829 *) CygWin32 support.
5830 [John Jarvie <jjarvie@newsguy.com>]
5832 *) The type-safe stack code has been rejigged. It is now only compiled
5833 in when OpenSSL is configured with the DEBUG_SAFESTACK option and
5834 by default all type-specific stack functions are "#define"d back to
5835 standard stack functions. This results in more streamlined output
5836 but retains the type-safety checking possibilities of the original
5840 *) The STACK code has been cleaned up, and certain type declarations
5841 that didn't make a lot of sense have been brought in line. This has
5842 also involved a cleanup of sorts in safestack.h to more correctly
5843 map type-safe stack functions onto their plain stack counterparts.
5844 This work has also resulted in a variety of "const"ifications of
5845 lots of the code, especially "_cmp" operations which should normally
5846 be prototyped with "const" parameters anyway.
5849 *) When generating bytes for the first time in md_rand.c, 'stir the pool'
5850 by seeding with STATE_SIZE dummy bytes (with zero entropy count).
5851 (The PRNG state consists of two parts, the large pool 'state' and 'md',
5852 where all of 'md' is used each time the PRNG is used, but 'state'
5853 is used only indexed by a cyclic counter. As entropy may not be
5854 well distributed from the beginning, 'md' is important as a
5855 chaining variable. However, the output function chains only half
5856 of 'md', i.e. 80 bits. ssleay_rand_add, on the other hand, chains
5857 all of 'md', and seeding with STATE_SIZE dummy bytes will result
5858 in all of 'state' being rewritten, with the new values depending
5859 on virtually all of 'md'. This overcomes the 80 bit limitation.)
5862 *) In ssl/s2_clnt.c and ssl/s3_clnt.c, call ERR_clear_error() when
5863 the handshake is continued after ssl_verify_cert_chain();
5864 otherwise, if SSL_VERIFY_NONE is set, remaining error codes
5865 can lead to 'unexplainable' connection aborts later.
5866 [Bodo Moeller; problem tracked down by Lutz Jaenicke]
5868 *) Major EVP API cipher revision.
5869 Add hooks for extra EVP features. This allows various cipher
5870 parameters to be set in the EVP interface. Support added for variable
5871 key length ciphers via the EVP_CIPHER_CTX_set_key_length() function and
5872 setting of RC2 and RC5 parameters.
5874 Modify EVP_OpenInit() and EVP_SealInit() to cope with variable key length
5877 Remove lots of duplicated code from the EVP library. For example *every*
5878 cipher init() function handles the 'iv' in the same way according to the
5879 cipher mode. They also all do nothing if the 'key' parameter is NULL and
5880 for CFB and OFB modes they zero ctx->num.
5882 New functionality allows removal of S/MIME code RC2 hack.
5884 Most of the routines have the same form and so can be declared in terms
5887 By shifting this to the top level EVP_CipherInit() it can be removed from
5888 all individual ciphers. If the cipher wants to handle IVs or keys
5889 differently it can set the EVP_CIPH_CUSTOM_IV or EVP_CIPH_ALWAYS_CALL_INIT
5892 Change lots of functions like EVP_EncryptUpdate() to now return a
5893 value: although software versions of the algorithms cannot fail
5894 any installed hardware versions can.
5897 *) Implement SSL_OP_TLS_ROLLBACK_BUG: In ssl3_get_client_key_exchange, if
5898 this option is set, tolerate broken clients that send the negotiated
5899 protocol version number instead of the requested protocol version
5903 *) Call dh_tmp_cb (set by ..._TMP_DH_CB) with correct 'is_export' flag;
5904 i.e. non-zero for export ciphersuites, zero otherwise.
5905 Previous versions had this flag inverted, inconsistent with
5906 rsa_tmp_cb (..._TMP_RSA_CB).
5907 [Bodo Moeller; problem reported by Amit Chopra]
5909 *) Add missing DSA library text string. Work around for some IIS
5910 key files with invalid SEQUENCE encoding.
5913 *) Add a document (doc/standards.txt) that list all kinds of standards
5914 and so on that are implemented in OpenSSL.
5917 *) Enhance c_rehash script. Old version would mishandle certificates
5918 with the same subject name hash and wouldn't handle CRLs at all.
5919 Added -fingerprint option to crl utility, to support new c_rehash
5923 *) Eliminate non-ANSI declarations in crypto.h and stack.h.
5926 *) Fix for SSL server purpose checking. Server checking was
5927 rejecting certificates which had extended key usage present
5928 but no ssl client purpose.
5929 [Steve Henson, reported by Rene Grosser <grosser@hisolutions.com>]
5931 *) Make PKCS#12 code work with no password. The PKCS#12 spec
5932 is a little unclear about how a blank password is handled.
5933 Since the password in encoded as a BMPString with terminating
5934 double NULL a zero length password would end up as just the
5935 double NULL. However no password at all is different and is
5936 handled differently in the PKCS#12 key generation code. NS
5937 treats a blank password as zero length. MSIE treats it as no
5938 password on export: but it will try both on import. We now do
5939 the same: PKCS12_parse() tries zero length and no password if
5940 the password is set to "" or NULL (NULL is now a valid password:
5941 it wasn't before) as does the pkcs12 application.
5944 *) Bugfixes in apps/x509.c: Avoid a memory leak; and don't use
5945 perror when PEM_read_bio_X509_REQ fails, the error message must
5946 be obtained from the error queue.
5949 *) Avoid 'thread_hash' memory leak in crypto/err/err.c by freeing
5950 it in ERR_remove_state if appropriate, and change ERR_get_state
5951 accordingly to avoid race conditions (this is necessary because
5952 thread_hash is no longer constant once set).
5955 *) Bugfix for linux-elf makefile.one.
5958 *) RSA_get_default_method() will now cause a default
5959 RSA_METHOD to be chosen if one doesn't exist already.
5960 Previously this was only set during a call to RSA_new()
5961 or RSA_new_method(NULL) meaning it was possible for
5962 RSA_get_default_method() to return NULL.
5965 *) Added native name translation to the existing DSO code
5966 that will convert (if the flag to do so is set) filenames
5967 that are sufficiently small and have no path information
5968 into a canonical native form. Eg. "blah" converted to
5969 "libblah.so" or "blah.dll" etc.
5972 *) New function ERR_error_string_n(e, buf, len) which is like
5973 ERR_error_string(e, buf), but writes at most 'len' bytes
5974 including the 0 terminator. For ERR_error_string_n, 'buf'
5976 [Damien Miller <djm@mindrot.org>, Bodo Moeller]
5978 *) CONF library reworked to become more general. A new CONF
5979 configuration file reader "class" is implemented as well as a
5980 new functions (NCONF_*, for "New CONF") to handle it. The now
5981 old CONF_* functions are still there, but are reimplemented to
5982 work in terms of the new functions. Also, a set of functions
5983 to handle the internal storage of the configuration data is
5984 provided to make it easier to write new configuration file
5985 reader "classes" (I can definitely see something reading a
5986 configuration file in XML format, for example), called _CONF_*,
5987 or "the configuration storage API"...
5989 The new configuration file reading functions are:
5991 NCONF_new, NCONF_free, NCONF_load, NCONF_load_fp, NCONF_load_bio,
5992 NCONF_get_section, NCONF_get_string, NCONF_get_numbre
5994 NCONF_default, NCONF_WIN32
5996 NCONF_dump_fp, NCONF_dump_bio
5998 NCONF_default and NCONF_WIN32 are method (or "class") choosers,
5999 NCONF_new creates a new CONF object. This works in the same way
6000 as other interfaces in OpenSSL, like the BIO interface.
6001 NCONF_dump_* dump the internal storage of the configuration file,
6002 which is useful for debugging. All other functions take the same
6003 arguments as the old CONF_* functions wth the exception of the
6004 first that must be a `CONF *' instead of a `LHASH *'.
6006 To make it easer to use the new classes with the old CONF_* functions,
6007 the function CONF_set_default_method is provided.
6010 *) Add '-tls1' option to 'openssl ciphers', which was already
6011 mentioned in the documentation but had not been implemented.
6012 (This option is not yet really useful because even the additional
6013 experimental TLS 1.0 ciphers are currently treated as SSL 3.0 ciphers.)
6016 *) Initial DSO code added into libcrypto for letting OpenSSL (and
6017 OpenSSL-based applications) load shared libraries and bind to
6018 them in a portable way.
6019 [Geoff Thorpe, with contributions from Richard Levitte]
6021 Changes between 0.9.5 and 0.9.5a [1 Apr 2000]
6023 *) Make sure _lrotl and _lrotr are only used with MSVC.
6025 *) Use lock CRYPTO_LOCK_RAND correctly in ssleay_rand_status
6026 (the default implementation of RAND_status).
6028 *) Rename openssl x509 option '-crlext', which was added in 0.9.5,
6029 to '-clrext' (= clear extensions), as intended and documented.
6030 [Bodo Moeller; inconsistency pointed out by Michael Attili
6033 *) Fix for HMAC. It wasn't zeroing the rest of the block if the key length
6034 was larger than the MD block size.
6035 [Steve Henson, pointed out by Yost William <YostW@tce.com>]
6037 *) Modernise PKCS12_parse() so it uses STACK_OF(X509) for its ca argument
6038 fix a leak when the ca argument was passed as NULL. Stop X509_PUBKEY_set()
6039 using the passed key: if the passed key was a private key the result
6040 of X509_print(), for example, would be to print out all the private key
6044 *) des_quad_cksum() byte order bug fix.
6045 [Ulf Möller, using the problem description in krb4-0.9.7, where
6046 the solution is attributed to Derrick J Brashear <shadow@DEMENTIA.ORG>]
6048 *) Fix so V_ASN1_APP_CHOOSE works again: however its use is strongly
6050 [Steve Henson, pointed out by Brian Korver <briank@cs.stanford.edu>]
6052 *) For easily testing in shell scripts whether some command
6053 'openssl XXX' exists, the new pseudo-command 'openssl no-XXX'
6054 returns with exit code 0 iff no command of the given name is available.
6055 'no-XXX' is printed in this case, 'XXX' otherwise. In both cases,
6056 the output goes to stdout and nothing is printed to stderr.
6057 Additional arguments are always ignored.
6059 Since for each cipher there is a command of the same name,
6060 the 'no-cipher' compilation switches can be tested this way.
6062 ('openssl no-XXX' is not able to detect pseudo-commands such
6063 as 'quit', 'list-XXX-commands', or 'no-XXX' itself.)
6066 *) Update test suite so that 'make test' succeeds in 'no-rsa' configuration.
6069 *) For SSL_[CTX_]set_tmp_dh, don't create a DH key if SSL_OP_SINGLE_DH_USE
6070 is set; it will be thrown away anyway because each handshake creates
6072 ssl_cert_dup, which is used by SSL_new, now copies DH keys in addition
6073 to parameters -- in previous versions (since OpenSSL 0.9.3) the
6074 'default key' from SSL_CTX_set_tmp_dh would always be lost, meanining
6075 you effectivly got SSL_OP_SINGLE_DH_USE when using this macro.
6078 *) New s_client option -ign_eof: EOF at stdin is ignored, and
6079 'Q' and 'R' lose their special meanings (quit/renegotiate).
6080 This is part of what -quiet does; unlike -quiet, -ign_eof
6081 does not suppress any output.
6084 *) Add compatibility options to the purpose and trust code. The
6085 purpose X509_PURPOSE_ANY is "any purpose" which automatically
6086 accepts a certificate or CA, this was the previous behaviour,
6087 with all the associated security issues.
6089 X509_TRUST_COMPAT is the old trust behaviour: only and
6090 automatically trust self signed roots in certificate store. A
6091 new trust setting X509_TRUST_DEFAULT is used to specify that
6092 a purpose has no associated trust setting and it should instead
6093 use the value in the default purpose.
6096 *) Fix the PKCS#8 DSA private key code so it decodes keys again
6097 and fix a memory leak.
6100 *) In util/mkerr.pl (which implements 'make errors'), preserve
6101 reason strings from the previous version of the .c file, as
6102 the default to have only downcase letters (and digits) in
6103 automatically generated reasons codes is not always appropriate.
6106 *) In ERR_load_ERR_strings(), build an ERR_LIB_SYS error reason table
6107 using strerror. Previously, ERR_reason_error_string() returned
6108 library names as reason strings for SYSerr; but SYSerr is a special
6109 case where small numbers are errno values, not library numbers.
6112 *) Add '-dsaparam' option to 'openssl dhparam' application. This
6113 converts DSA parameters into DH parameters. (When creating parameters,
6114 DSA_generate_parameters is used.)
6117 *) Include 'length' (recommended exponent length) in C code generated
6118 by 'openssl dhparam -C'.
6121 *) The second argument to set_label in perlasm was already being used
6122 so couldn't be used as a "file scope" flag. Moved to third argument
6126 *) In PEM_ASN1_write_bio and some other functions, use RAND_pseudo_bytes
6127 instead of RAND_bytes for encryption IVs and salts.
6130 *) Include RAND_status() into RAND_METHOD instead of implementing
6131 it only for md_rand.c Otherwise replacing the PRNG by calling
6132 RAND_set_rand_method would be impossible.
6135 *) Don't let DSA_generate_key() enter an infinite loop if the random
6136 number generation fails.
6139 *) New 'rand' application for creating pseudo-random output.
6142 *) Added configuration support for Linux/IA64
6143 [Rolf Haberrecker <rolf@suse.de>]
6145 *) Assembler module support for Mingw32.
6148 *) Shared library support for HPUX (in shlib/).
6149 [Lutz Jaenicke <Lutz.Jaenicke@aet.TU-Cottbus.DE> and Anonymous]
6151 *) Shared library support for Solaris gcc.
6152 [Lutz Behnke <behnke@trustcenter.de>]
6154 Changes between 0.9.4 and 0.9.5 [28 Feb 2000]
6156 *) PKCS7_encrypt() was adding text MIME headers twice because they
6157 were added manually and by SMIME_crlf_copy().
6160 *) In bntest.c don't call BN_rand with zero bits argument.
6161 [Steve Henson, pointed out by Andrew W. Gray <agray@iconsinc.com>]
6163 *) BN_mul bugfix: In bn_mul_part_recursion() only the a>a[n] && b>b[n]
6164 case was implemented. This caused BN_div_recp() to fail occasionally.
6167 *) Add an optional second argument to the set_label() in the perl
6168 assembly language builder. If this argument exists and is set
6169 to 1 it signals that the assembler should use a symbol whose
6170 scope is the entire file, not just the current function. This
6171 is needed with MASM which uses the format label:: for this scope.
6172 [Steve Henson, pointed out by Peter Runestig <peter@runestig.com>]
6174 *) Change the ASN1 types so they are typedefs by default. Before
6175 almost all types were #define'd to ASN1_STRING which was causing
6176 STACK_OF() problems: you couldn't declare STACK_OF(ASN1_UTF8STRING)
6180 *) Change names of new functions to the new get1/get0 naming
6181 convention: After 'get1', the caller owns a reference count
6182 and has to call ..._free; 'get0' returns a pointer to some
6183 data structure without incrementing reference counters.
6184 (Some of the existing 'get' functions increment a reference
6185 counter, some don't.)
6186 Similarly, 'set1' and 'add1' functions increase reference
6187 counters or duplicate objects.
6190 *) Allow for the possibility of temp RSA key generation failure:
6191 the code used to assume it always worked and crashed on failure.
6194 *) Fix potential buffer overrun problem in BIO_printf().
6195 [Ulf Möller, using public domain code by Patrick Powell; problem
6196 pointed out by David Sacerdote <das33@cornell.edu>]
6198 *) Support EGD <http://www.lothar.com/tech/crypto/>. New functions
6199 RAND_egd() and RAND_status(). In the command line application,
6200 the EGD socket can be specified like a seed file using RANDFILE
6204 *) Allow the string CERTIFICATE to be tolerated in PKCS#7 structures.
6205 Some CAs (e.g. Verisign) distribute certificates in this form.
6208 *) Remove the SSL_ALLOW_ADH compile option and set the default cipher
6209 list to exclude them. This means that no special compilation option
6210 is needed to use anonymous DH: it just needs to be included in the
6214 *) Change the EVP_MD_CTX_type macro so its meaning consistent with
6215 EVP_MD_type. The old functionality is available in a new macro called
6216 EVP_MD_md(). Change code that uses it and update docs.
6219 *) ..._ctrl functions now have corresponding ..._callback_ctrl functions
6220 where the 'void *' argument is replaced by a function pointer argument.
6221 Previously 'void *' was abused to point to functions, which works on
6222 many platforms, but is not correct. As these functions are usually
6223 called by macros defined in OpenSSL header files, most source code
6224 should work without changes.
6227 *) <openssl/opensslconf.h> (which is created by Configure) now contains
6228 sections with information on -D... compiler switches used for
6229 compiling the library so that applications can see them. To enable
6230 one of these sections, a pre-processor symbol OPENSSL_..._DEFINES
6231 must be defined. E.g.,
6232 #define OPENSSL_ALGORITHM_DEFINES
6233 #include <openssl/opensslconf.h>
6234 defines all pertinent NO_<algo> symbols, such as NO_IDEA, NO_RSA, etc.
6235 [Richard Levitte, Ulf and Bodo Möller]
6237 *) Bugfix: Tolerate fragmentation and interleaving in the SSL 3/TLS
6241 *) Change the 'other' type in certificate aux info to a STACK_OF
6242 X509_ALGOR. Although not an AlgorithmIdentifier as such it has
6243 the required ASN1 format: arbitrary types determined by an OID.
6246 *) Add some PEM_write_X509_REQ_NEW() functions and a command line
6247 argument to 'req'. This is not because the function is newer or
6248 better than others it just uses the work 'NEW' in the certificate
6249 request header lines. Some software needs this.
6252 *) Reorganise password command line arguments: now passwords can be
6253 obtained from various sources. Delete the PEM_cb function and make
6254 it the default behaviour: i.e. if the callback is NULL and the
6255 usrdata argument is not NULL interpret it as a null terminated pass
6256 phrase. If usrdata and the callback are NULL then the pass phrase
6257 is prompted for as usual.
6260 *) Add support for the Compaq Atalla crypto accelerator. If it is installed,
6261 the support is automatically enabled. The resulting binaries will
6262 autodetect the card and use it if present.
6263 [Ben Laurie and Compaq Inc.]
6265 *) Work around for Netscape hang bug. This sends certificate request
6266 and server done in one record. Since this is perfectly legal in the
6267 SSL/TLS protocol it isn't a "bug" option and is on by default. See
6268 the bugs/SSLv3 entry for more info.
6271 *) HP-UX tune-up: new unified configs, HP C compiler bug workaround.
6274 *) Add -rand argument to smime and pkcs12 applications and read/write
6278 *) New 'passwd' tool for crypt(3) and apr1 password hashes.
6281 *) Add command line password options to the remaining applications.
6284 *) Bug fix for BN_div_recp() for numerators with an even number of
6288 *) More tests in bntest.c, and changed test_bn output.
6291 *) ./config recognizes MacOS X now.
6294 *) Bug fix for BN_div() when the first words of num and divsor are
6295 equal (it gave wrong results if (rem=(n1-q*d0)&BN_MASK2) < d0).
6298 *) Add support for various broken PKCS#8 formats, and command line
6299 options to produce them.
6302 *) New functions BN_CTX_start(), BN_CTX_get() and BT_CTX_end() to
6303 get temporary BIGNUMs from a BN_CTX.
6306 *) Correct return values in BN_mod_exp_mont() and BN_mod_exp2_mont()
6310 *) Change the SSLeay_add_all_*() functions to OpenSSL_add_all_*() and
6311 include a #define from the old name to the new. The original intent
6312 was that statically linked binaries could for example just call
6313 SSLeay_add_all_ciphers() to just add ciphers to the table and not
6314 link with digests. This never worked becayse SSLeay_add_all_digests()
6315 and SSLeay_add_all_ciphers() were in the same source file so calling
6316 one would link with the other. They are now in separate source files.
6319 *) Add a new -notext option to 'ca' and a -pubkey option to 'spkac'.
6322 *) Use a less unusual form of the Miller-Rabin primality test (it used
6323 a binary algorithm for exponentiation integrated into the Miller-Rabin
6324 loop, our standard modexp algorithms are faster).
6327 *) Support for the EBCDIC character set completed.
6328 [Martin Kraemer <Martin.Kraemer@Mch.SNI.De>]
6330 *) Source code cleanups: use const where appropriate, eliminate casts,
6331 use void * instead of char * in lhash.
6334 *) Bugfix: ssl3_send_server_key_exchange was not restartable
6335 (the state was not changed to SSL3_ST_SW_KEY_EXCH_B, and because of
6336 this the server could overwrite ephemeral keys that the client
6340 *) Turn DSA_is_prime into a macro that calls BN_is_prime,
6341 using 50 iterations of the Rabin-Miller test.
6343 DSA_generate_parameters now uses BN_is_prime_fasttest (with 50
6344 iterations of the Rabin-Miller test as required by the appendix
6345 to FIPS PUB 186[-1]) instead of DSA_is_prime.
6346 As BN_is_prime_fasttest includes trial division, DSA parameter
6347 generation becomes much faster.
6349 This implies a change for the callback functions in DSA_is_prime
6350 and DSA_generate_parameters: The callback function is called once
6351 for each positive witness in the Rabin-Miller test, not just
6352 occasionally in the inner loop; and the parameters to the
6353 callback function now provide an iteration count for the outer
6354 loop rather than for the current invocation of the inner loop.
6355 DSA_generate_parameters additionally can call the callback
6356 function with an 'iteration count' of -1, meaning that a
6357 candidate has passed the trial division test (when q is generated
6358 from an application-provided seed, trial division is skipped).
6361 *) New function BN_is_prime_fasttest that optionally does trial
6362 division before starting the Rabin-Miller test and has
6363 an additional BN_CTX * argument (whereas BN_is_prime always
6364 has to allocate at least one BN_CTX).
6365 'callback(1, -1, cb_arg)' is called when a number has passed the
6366 trial division stage.
6369 *) Fix for bug in CRL encoding. The validity dates weren't being handled
6373 *) New -pkcs12 option to CA.pl script to write out a PKCS#12 file.
6376 *) New function BN_pseudo_rand().
6379 *) Clean up BN_mod_mul_montgomery(): replace the broken (and unreadable)
6380 bignum version of BN_from_montgomery() with the working code from
6381 SSLeay 0.9.0 (the word based version is faster anyway), and clean up
6385 *) Avoid a race condition in s2_clnt.c (function get_server_hello) that
6386 made it impossible to use the same SSL_SESSION data structure in
6387 SSL2 clients in multiple threads.
6390 *) The return value of RAND_load_file() no longer counts bytes obtained
6391 by stat(). RAND_load_file(..., -1) is new and uses the complete file
6392 to seed the PRNG (previously an explicit byte count was required).
6393 [Ulf Möller, Bodo Möller]
6395 *) Clean up CRYPTO_EX_DATA functions, some of these didn't have prototypes
6396 used (char *) instead of (void *) and had casts all over the place.
6399 *) Make BN_generate_prime() return NULL on error if ret!=NULL.
6402 *) Retain source code compatibility for BN_prime_checks macro:
6403 BN_is_prime(..., BN_prime_checks, ...) now uses
6404 BN_prime_checks_for_size to determine the appropriate number of
6405 Rabin-Miller iterations.
6408 *) Diffie-Hellman uses "safe" primes: DH_check() return code renamed to
6409 DH_CHECK_P_NOT_SAFE_PRIME.
6410 (Check if this is true? OpenPGP calls them "strong".)
6413 *) Merge the functionality of "dh" and "gendh" programs into a new program
6414 "dhparam". The old programs are retained for now but will handle DH keys
6415 (instead of parameters) in future.
6418 *) Make the ciphers, s_server and s_client programs check the return values
6419 when a new cipher list is set.
6422 *) Enhance the SSL/TLS cipher mechanism to correctly handle the TLS 56bit
6423 ciphers. Before when the 56bit ciphers were enabled the sorting was
6426 The syntax for the cipher sorting has been extended to support sorting by
6427 cipher-strength (using the strength_bits hard coded in the tables).
6428 The new command is "@STRENGTH" (see also doc/apps/ciphers.pod).
6430 Fix a bug in the cipher-command parser: when supplying a cipher command
6431 string with an "undefined" symbol (neither command nor alphanumeric
6432 [A-Za-z0-9], ssl_set_cipher_list used to hang in an endless loop. Now
6433 an error is flagged.
6435 Due to the strength-sorting extension, the code of the
6436 ssl_create_cipher_list() function was completely rearranged. I hope that
6437 the readability was also increased :-)
6438 [Lutz Jaenicke <Lutz.Jaenicke@aet.TU-Cottbus.DE>]
6440 *) Minor change to 'x509' utility. The -CAcreateserial option now uses 1
6441 for the first serial number and places 2 in the serial number file. This
6442 avoids problems when the root CA is created with serial number zero and
6443 the first user certificate has the same issuer name and serial number
6447 *) Fixes to X509_ATTRIBUTE utilities, change the 'req' program so it uses
6448 the new code. Add documentation for this stuff.
6451 *) Changes to X509_ATTRIBUTE utilities. These have been renamed from
6452 X509_*() to X509at_*() on the grounds that they don't handle X509
6453 structures and behave in an analagous way to the X509v3 functions:
6454 they shouldn't be called directly but wrapper functions should be used
6457 So we also now have some wrapper functions that call the X509at functions
6458 when passed certificate requests. (TO DO: similar things can be done with
6459 PKCS#7 signed and unsigned attributes, PKCS#12 attributes and a few other
6460 things. Some of these need some d2i or i2d and print functionality
6461 because they handle more complex structures.)
6464 *) Add missing #ifndefs that caused missing symbols when building libssl
6465 as a shared library without RSA. Use #ifndef NO_SSL2 instead of
6466 NO_RSA in ssl/s2*.c.
6467 [Kris Kennaway <kris@hub.freebsd.org>, modified by Ulf Möller]
6469 *) Precautions against using the PRNG uninitialized: RAND_bytes() now
6470 has a return value which indicates the quality of the random data
6471 (1 = ok, 0 = not seeded). Also an error is recorded on the thread's
6472 error queue. New function RAND_pseudo_bytes() generates output that is
6473 guaranteed to be unique but not unpredictable. RAND_add is like
6474 RAND_seed, but takes an extra argument for an entropy estimate
6475 (RAND_seed always assumes full entropy).
6478 *) Do more iterations of Rabin-Miller probable prime test (specifically,
6479 3 for 1024-bit primes, 6 for 512-bit primes, 12 for 256-bit primes
6480 instead of only 2 for all lengths; see BN_prime_checks_for_size definition
6481 in crypto/bn/bn_prime.c for the complete table). This guarantees a
6482 false-positive rate of at most 2^-80 for random input.
6485 *) Rewrite ssl3_read_n (ssl/s3_pkt.c) avoiding a couple of bugs.
6488 *) New function X509_CTX_rget_chain() (renamed to X509_CTX_get1_chain
6489 in the 0.9.5 release), this returns the chain
6490 from an X509_CTX structure with a dup of the stack and all
6491 the X509 reference counts upped: so the stack will exist
6492 after X509_CTX_cleanup() has been called. Modify pkcs12.c
6495 Also make SSL_SESSION_print() print out the verify return
6499 *) Add manpage for the pkcs12 command. Also change the default
6500 behaviour so MAC iteration counts are used unless the new
6501 -nomaciter option is used. This improves file security and
6502 only older versions of MSIE (4.0 for example) need it.
6505 *) Honor the no-xxx Configure options when creating .DEF files.
6508 *) Add PKCS#10 attributes to field table: challengePassword,
6509 unstructuredName and unstructuredAddress. These are taken from
6510 draft PKCS#9 v2.0 but are compatible with v1.2 provided no
6511 international characters are used.
6513 More changes to X509_ATTRIBUTE code: allow the setting of types
6514 based on strings. Remove the 'loc' parameter when adding
6515 attributes because these will be a SET OF encoding which is sorted
6519 *) Initial changes to the 'req' utility to allow request generation
6520 automation. This will allow an application to just generate a template
6521 file containing all the field values and have req construct the
6524 Initial support for X509_ATTRIBUTE handling. Stacks of these are
6525 used all over the place including certificate requests and PKCS#7
6526 structures. They are currently handled manually where necessary with
6527 some primitive wrappers for PKCS#7. The new functions behave in a
6528 manner analogous to the X509 extension functions: they allow
6529 attributes to be looked up by NID and added.
6531 Later something similar to the X509V3 code would be desirable to
6532 automatically handle the encoding, decoding and printing of the
6533 more complex types. The string types like challengePassword can
6534 be handled by the string table functions.
6536 Also modified the multi byte string table handling. Now there is
6537 a 'global mask' which masks out certain types. The table itself
6538 can use the flag STABLE_NO_MASK to ignore the mask setting: this
6539 is useful when for example there is only one permissible type
6540 (as in countryName) and using the mask might result in no valid
6544 *) Clean up 'Finished' handling, and add functions SSL_get_finished and
6545 SSL_get_peer_finished to allow applications to obtain the latest
6546 Finished messages sent to the peer or expected from the peer,
6547 respectively. (SSL_get_peer_finished is usually the Finished message
6548 actually received from the peer, otherwise the protocol will be aborted.)
6550 As the Finished message are message digests of the complete handshake
6551 (with a total of 192 bits for TLS 1.0 and more for SSL 3.0), they can
6552 be used for external authentication procedures when the authentication
6553 provided by SSL/TLS is not desired or is not enough.
6556 *) Enhanced support for Alpha Linux is added. Now ./config checks if
6557 the host supports BWX extension and if Compaq C is present on the
6558 $PATH. Just exploiting of the BWX extension results in 20-30%
6559 performance kick for some algorithms, e.g. DES and RC4 to mention
6560 a couple. Compaq C in turn generates ~20% faster code for MD5 and
6564 *) Add support for MS "fast SGC". This is arguably a violation of the
6565 SSL3/TLS protocol. Netscape SGC does two handshakes: the first with
6566 weak crypto and after checking the certificate is SGC a second one
6567 with strong crypto. MS SGC stops the first handshake after receiving
6568 the server certificate message and sends a second client hello. Since
6569 a server will typically do all the time consuming operations before
6570 expecting any further messages from the client (server key exchange
6571 is the most expensive) there is little difference between the two.
6573 To get OpenSSL to support MS SGC we have to permit a second client
6574 hello message after we have sent server done. In addition we have to
6575 reset the MAC if we do get this second client hello.
6578 *) Add a function 'd2i_AutoPrivateKey()' this will automatically decide
6579 if a DER encoded private key is RSA or DSA traditional format. Changed
6580 d2i_PrivateKey_bio() to use it. This is only needed for the "traditional"
6581 format DER encoded private key. Newer code should use PKCS#8 format which
6582 has the key type encoded in the ASN1 structure. Added DER private key
6583 support to pkcs8 application.
6586 *) SSL 3/TLS 1 servers now don't request certificates when an anonymous
6587 ciphersuites has been selected (as required by the SSL 3/TLS 1
6588 specifications). Exception: When SSL_VERIFY_FAIL_IF_NO_PEER_CERT
6589 is set, we interpret this as a request to violate the specification
6590 (the worst that can happen is a handshake failure, and 'correct'
6591 behaviour would result in a handshake failure anyway).
6594 *) In SSL_CTX_add_session, take into account that there might be multiple
6595 SSL_SESSION structures with the same session ID (e.g. when two threads
6596 concurrently obtain them from an external cache).
6597 The internal cache can handle only one SSL_SESSION with a given ID,
6598 so if there's a conflict, we now throw out the old one to achieve
6602 *) Add OIDs for idea and blowfish in CBC mode. This will allow both
6603 to be used in PKCS#5 v2.0 and S/MIME. Also add checking to
6604 some routines that use cipher OIDs: some ciphers do not have OIDs
6605 defined and so they cannot be used for S/MIME and PKCS#5 v2.0 for
6609 *) Simplify the trust setting structure and code. Now we just have
6610 two sequences of OIDs for trusted and rejected settings. These will
6611 typically have values the same as the extended key usage extension
6612 and any application specific purposes.
6614 The trust checking code now has a default behaviour: it will just
6615 check for an object with the same NID as the passed id. Functions can
6616 be provided to override either the default behaviour or the behaviour
6617 for a given id. SSL client, server and email already have functions
6618 in place for compatibility: they check the NID and also return "trusted"
6619 if the certificate is self signed.
6622 *) Add d2i,i2d bio/fp functions for PrivateKey: these convert the
6623 traditional format into an EVP_PKEY structure.
6626 *) Add a password callback function PEM_cb() which either prompts for
6627 a password if usr_data is NULL or otherwise assumes it is a null
6628 terminated password. Allow passwords to be passed on command line
6629 environment or config files in a few more utilities.
6632 *) Add a bunch of DER and PEM functions to handle PKCS#8 format private
6633 keys. Add some short names for PKCS#8 PBE algorithms and allow them
6634 to be specified on the command line for the pkcs8 and pkcs12 utilities.
6635 Update documentation.
6638 *) Support for ASN1 "NULL" type. This could be handled before by using
6639 ASN1_TYPE but there wasn't any function that would try to read a NULL
6640 and produce an error if it couldn't. For compatibility we also have
6641 ASN1_NULL_new() and ASN1_NULL_free() functions but these are faked and
6642 don't allocate anything because they don't need to.
6645 *) Initial support for MacOS is now provided. Examine INSTALL.MacOS
6647 [Andy Polyakov, Roy Woods <roy@centicsystems.ca>]
6649 *) Rebuild of the memory allocation routines used by OpenSSL code and
6650 possibly others as well. The purpose is to make an interface that
6651 provide hooks so anyone can build a separate set of allocation and
6652 deallocation routines to be used by OpenSSL, for example memory
6653 pool implementations, or something else, which was previously hard
6654 since Malloc(), Realloc() and Free() were defined as macros having
6655 the values malloc, realloc and free, respectively (except for Win32
6656 compilations). The same is provided for memory debugging code.
6657 OpenSSL already comes with functionality to find memory leaks, but
6658 this gives people a chance to debug other memory problems.
6660 With these changes, a new set of functions and macros have appeared:
6662 CRYPTO_set_mem_debug_functions() [F]
6663 CRYPTO_get_mem_debug_functions() [F]
6664 CRYPTO_dbg_set_options() [F]
6665 CRYPTO_dbg_get_options() [F]
6666 CRYPTO_malloc_debug_init() [M]
6668 The memory debug functions are NULL by default, unless the library
6669 is compiled with CRYPTO_MDEBUG or friends is defined. If someone
6670 wants to debug memory anyway, CRYPTO_malloc_debug_init() (which
6671 gives the standard debugging functions that come with OpenSSL) or
6672 CRYPTO_set_mem_debug_functions() (tells OpenSSL to use functions
6673 provided by the library user) must be used. When the standard
6674 debugging functions are used, CRYPTO_dbg_set_options can be used to
6675 request additional information:
6676 CRYPTO_dbg_set_options(V_CYRPTO_MDEBUG_xxx) corresponds to setting
6677 the CRYPTO_MDEBUG_xxx macro when compiling the library.
6679 Also, things like CRYPTO_set_mem_functions will always give the
6680 expected result (the new set of functions is used for allocation
6681 and deallocation) at all times, regardless of platform and compiler
6684 To finish it up, some functions that were never use in any other
6685 way than through macros have a new API and new semantic:
6688 CRYPTO_dbg_realloc()
6691 All macros of value have retained their old syntax.
6692 [Richard Levitte and Bodo Moeller]
6694 *) Some S/MIME fixes. The OID for SMIMECapabilities was wrong, the
6695 ordering of SMIMECapabilities wasn't in "strength order" and there
6696 was a missing NULL in the AlgorithmIdentifier for the SHA1 signature
6700 *) Some ASN1 types with illegal zero length encoding (INTEGER,
6701 ENUMERATED and OBJECT IDENTIFIER) choked the ASN1 routines.
6702 [Frans Heymans <fheymans@isaserver.be>, modified by Steve Henson]
6704 *) Merge in my S/MIME library for OpenSSL. This provides a simple
6705 S/MIME API on top of the PKCS#7 code, a MIME parser (with enough
6706 functionality to handle multipart/signed properly) and a utility
6707 called 'smime' to call all this stuff. This is based on code I
6708 originally wrote for Celo who have kindly allowed it to be
6709 included in OpenSSL.
6712 *) Add variants des_set_key_checked and des_set_key_unchecked of
6713 des_set_key (aka des_key_sched). Global variable des_check_key
6714 decides which of these is called by des_set_key; this way
6715 des_check_key behaves as it always did, but applications and
6716 the library itself, which was buggy for des_check_key == 1,
6717 have a cleaner way to pick the version they need.
6720 *) New function PKCS12_newpass() which changes the password of a
6724 *) Modify X509_TRUST and X509_PURPOSE so it also uses a static and
6725 dynamic mix. In both cases the ids can be used as an index into the
6726 table. Also modified the X509_TRUST_add() and X509_PURPOSE_add()
6727 functions so they accept a list of the field values and the
6728 application doesn't need to directly manipulate the X509_TRUST
6732 *) Modify the ASN1_STRING_TABLE stuff so it also uses bsearch and doesn't
6736 *) Modify the way the V3 extension code looks up extensions. This now
6737 works in a similar way to the object code: we have some "standard"
6738 extensions in a static table which is searched with OBJ_bsearch()
6739 and the application can add dynamic ones if needed. The file
6740 crypto/x509v3/ext_dat.h now has the info: this file needs to be
6741 updated whenever a new extension is added to the core code and kept
6742 in ext_nid order. There is a simple program 'tabtest.c' which checks
6743 this. New extensions are not added too often so this file can readily
6744 be maintained manually.
6746 There are two big advantages in doing things this way. The extensions
6747 can be looked up immediately and no longer need to be "added" using
6748 X509V3_add_standard_extensions(): this function now does nothing.
6749 [Side note: I get *lots* of email saying the extension code doesn't
6750 work because people forget to call this function]
6751 Also no dynamic allocation is done unless new extensions are added:
6752 so if we don't add custom extensions there is no need to call
6753 X509V3_EXT_cleanup().
6756 *) Modify enc utility's salting as follows: make salting the default. Add a
6757 magic header, so unsalted files fail gracefully instead of just decrypting
6758 to garbage. This is because not salting is a big security hole, so people
6759 should be discouraged from doing it.
6762 *) Fixes and enhancements to the 'x509' utility. It allowed a message
6763 digest to be passed on the command line but it only used this
6764 parameter when signing a certificate. Modified so all relevant
6765 operations are affected by the digest parameter including the
6766 -fingerprint and -x509toreq options. Also -x509toreq choked if a
6767 DSA key was used because it didn't fix the digest.
6770 *) Initial certificate chain verify code. Currently tests the untrusted
6771 certificates for consistency with the verify purpose (which is set
6772 when the X509_STORE_CTX structure is set up) and checks the pathlength.
6774 There is a NO_CHAIN_VERIFY compilation option to keep the old behaviour:
6775 this is because it will reject chains with invalid extensions whereas
6776 every previous version of OpenSSL and SSLeay made no checks at all.
6778 Trust code: checks the root CA for the relevant trust settings. Trust
6779 settings have an initial value consistent with the verify purpose: e.g.
6780 if the verify purpose is for SSL client use it expects the CA to be
6781 trusted for SSL client use. However the default value can be changed to
6782 permit custom trust settings: one example of this would be to only trust
6783 certificates from a specific "secure" set of CAs.
6785 Also added X509_STORE_CTX_new() and X509_STORE_CTX_free() functions
6786 which should be used for version portability: especially since the
6787 verify structure is likely to change more often now.
6789 SSL integration. Add purpose and trust to SSL_CTX and SSL and functions
6790 to set them. If not set then assume SSL clients will verify SSL servers
6793 Two new options to the verify program: -untrusted allows a set of
6794 untrusted certificates to be passed in and -purpose which sets the
6795 intended purpose of the certificate. If a purpose is set then the
6796 new chain verify code is used to check extension consistency.
6799 *) Support for the authority information access extension.
6802 *) Modify RSA and DSA PEM read routines to transparently handle
6803 PKCS#8 format private keys. New *_PUBKEY_* functions that handle
6804 public keys in a format compatible with certificate
6805 SubjectPublicKeyInfo structures. Unfortunately there were already
6806 functions called *_PublicKey_* which used various odd formats so
6807 these are retained for compatibility: however the DSA variants were
6808 never in a public release so they have been deleted. Changed dsa/rsa
6809 utilities to handle the new format: note no releases ever handled public
6810 keys so we should be OK.
6812 The primary motivation for this change is to avoid the same fiasco
6813 that dogs private keys: there are several incompatible private key
6814 formats some of which are standard and some OpenSSL specific and
6815 require various evil hacks to allow partial transparent handling and
6816 even then it doesn't work with DER formats. Given the option anything
6817 other than PKCS#8 should be dumped: but the other formats have to
6818 stay in the name of compatibility.
6820 With public keys and the benefit of hindsight one standard format
6821 is used which works with EVP_PKEY, RSA or DSA structures: though
6822 it clearly returns an error if you try to read the wrong kind of key.
6824 Added a -pubkey option to the 'x509' utility to output the public key.
6825 Also rename the EVP_PKEY_get_*() to EVP_PKEY_rget_*()
6826 (renamed to EVP_PKEY_get1_*() in the OpenSSL 0.9.5 release) and add
6827 EVP_PKEY_rset_*() functions (renamed to EVP_PKEY_set1_*())
6828 that do the same as the EVP_PKEY_assign_*() except they up the
6829 reference count of the added key (they don't "swallow" the
6833 *) Fixes to crypto/x509/by_file.c the code to read in certificates and
6834 CRLs would fail if the file contained no certificates or no CRLs:
6835 added a new function to read in both types and return the number
6836 read: this means that if none are read it will be an error. The
6837 DER versions of the certificate and CRL reader would always fail
6838 because it isn't possible to mix certificates and CRLs in DER format
6839 without choking one or the other routine. Changed this to just read
6840 a certificate: this is the best we can do. Also modified the code
6841 in apps/verify.c to take notice of return codes: it was previously
6842 attempting to read in certificates from NULL pointers and ignoring
6843 any errors: this is one reason why the cert and CRL reader seemed
6844 to work. It doesn't check return codes from the default certificate
6845 routines: these may well fail if the certificates aren't installed.
6848 *) Code to support otherName option in GeneralName.
6851 *) First update to verify code. Change the verify utility
6852 so it warns if it is passed a self signed certificate:
6853 for consistency with the normal behaviour. X509_verify
6854 has been modified to it will now verify a self signed
6855 certificate if *exactly* the same certificate appears
6856 in the store: it was previously impossible to trust a
6857 single self signed certificate. This means that:
6858 openssl verify ss.pem
6859 now gives a warning about a self signed certificate but
6860 openssl verify -CAfile ss.pem ss.pem
6864 *) For servers, store verify_result in SSL_SESSION data structure
6865 (and add it to external session representation).
6866 This is needed when client certificate verifications fails,
6867 but an application-provided verification callback (set by
6868 SSL_CTX_set_cert_verify_callback) allows accepting the session
6869 anyway (i.e. leaves x509_store_ctx->error != X509_V_OK
6870 but returns 1): When the session is reused, we have to set
6871 ssl->verify_result to the appropriate error code to avoid
6873 [Bodo Moeller, problem pointed out by Lutz Jaenicke]
6875 *) Fix a bug in the new PKCS#7 code: it didn't consider the
6876 case in PKCS7_dataInit() where the signed PKCS7 structure
6877 didn't contain any existing data because it was being created.
6878 [Po-Cheng Chen <pocheng@nst.com.tw>, slightly modified by Steve Henson]
6880 *) Add a salt to the key derivation routines in enc.c. This
6881 forms the first 8 bytes of the encrypted file. Also add a
6882 -S option to allow a salt to be input on the command line.
6885 *) New function X509_cmp(). Oddly enough there wasn't a function
6886 to compare two certificates. We do this by working out the SHA1
6887 hash and comparing that. X509_cmp() will be needed by the trust
6891 *) SSL_get1_session() is like SSL_get_session(), but increments
6892 the reference count in the SSL_SESSION returned.
6893 [Geoff Thorpe <geoff@eu.c2.net>]
6895 *) Fix for 'req': it was adding a null to request attributes.
6896 Also change the X509_LOOKUP and X509_INFO code to handle
6897 certificate auxiliary information.
6900 *) Add support for 40 and 64 bit RC2 and RC4 algorithms: document
6904 *) Add the possibility to add extra information to the memory leak
6905 detecting output, to form tracebacks, showing from where each
6906 allocation was originated: CRYPTO_push_info("constant string") adds
6907 the string plus current file name and line number to a per-thread
6908 stack, CRYPTO_pop_info() does the obvious, CRYPTO_remove_all_info()
6909 is like calling CYRPTO_pop_info() until the stack is empty.
6910 Also updated memory leak detection code to be multi-thread-safe.
6913 *) Add options -text and -noout to pkcs7 utility and delete the
6914 encryption options which never did anything. Update docs.
6917 *) Add options to some of the utilities to allow the pass phrase
6918 to be included on either the command line (not recommended on
6919 OSes like Unix) or read from the environment. Update the
6920 manpages and fix a few bugs.
6923 *) Add a few manpages for some of the openssl commands.
6926 *) Fix the -revoke option in ca. It was freeing up memory twice,
6927 leaking and not finding already revoked certificates.
6930 *) Extensive changes to support certificate auxiliary information.
6931 This involves the use of X509_CERT_AUX structure and X509_AUX
6932 functions. An X509_AUX function such as PEM_read_X509_AUX()
6933 can still read in a certificate file in the usual way but it
6934 will also read in any additional "auxiliary information". By
6935 doing things this way a fair degree of compatibility can be
6936 retained: existing certificates can have this information added
6937 using the new 'x509' options.
6939 Current auxiliary information includes an "alias" and some trust
6940 settings. The trust settings will ultimately be used in enhanced
6941 certificate chain verification routines: currently a certificate
6942 can only be trusted if it is self signed and then it is trusted
6946 *) Fix assembler for Alpha (tested only on DEC OSF not Linux or *BSD).
6947 The problem was that one of the replacement routines had not been working
6948 since SSLeay releases. For now the offending routine has been replaced
6949 with non-optimised assembler. Even so, this now gives around 95%
6950 performance improvement for 1024 bit RSA signs.
6953 *) Hack to fix PKCS#7 decryption when used with some unorthodox RC2
6954 handling. Most clients have the effective key size in bits equal to
6955 the key length in bits: so a 40 bit RC2 key uses a 40 bit (5 byte) key.
6956 A few however don't do this and instead use the size of the decrypted key
6957 to determine the RC2 key length and the AlgorithmIdentifier to determine
6958 the effective key length. In this case the effective key length can still
6959 be 40 bits but the key length can be 168 bits for example. This is fixed
6960 by manually forcing an RC2 key into the EVP_PKEY structure because the
6961 EVP code can't currently handle unusual RC2 key sizes: it always assumes
6962 the key length and effective key length are equal.
6965 *) Add a bunch of functions that should simplify the creation of
6966 X509_NAME structures. Now you should be able to do:
6967 X509_NAME_add_entry_by_txt(nm, "CN", MBSTRING_ASC, "Steve", -1, -1, 0);
6968 and have it automatically work out the correct field type and fill in
6969 the structures. The more adventurous can try:
6970 X509_NAME_add_entry_by_txt(nm, field, MBSTRING_UTF8, str, -1, -1, 0);
6971 and it will (hopefully) work out the correct multibyte encoding.
6974 *) Change the 'req' utility to use the new field handling and multibyte
6975 copy routines. Before the DN field creation was handled in an ad hoc
6976 way in req, ca, and x509 which was rather broken and didn't support
6977 BMPStrings or UTF8Strings. Since some software doesn't implement
6978 BMPStrings or UTF8Strings yet, they can be enabled using the config file
6979 using the dirstring_type option. See the new comment in the default
6980 openssl.cnf for more info.
6983 *) Make crypto/rand/md_rand.c more robust:
6984 - Assure unique random numbers after fork().
6985 - Make sure that concurrent threads access the global counter and
6986 md serializably so that we never lose entropy in them
6987 or use exactly the same state in multiple threads.
6988 Access to the large state is not always serializable because
6989 the additional locking could be a performance killer, and
6990 md should be large enough anyway.
6993 *) New file apps/app_rand.c with commonly needed functionality
6994 for handling the random seed file.
6996 Use the random seed file in some applications that previously did not:
6998 dsaparam -genkey (which also ignored its '-rand' option),
7001 x509 (when signing).
7002 Except on systems with /dev/urandom, it is crucial to have a random
7003 seed file at least for key creation, DSA signing, and for DH exchanges;
7004 for RSA signatures we could do without one.
7006 gendh and gendsa (unlike genrsa) used to read only the first byte
7007 of each file listed in the '-rand' option. The function as previously
7008 found in genrsa is now in app_rand.c and is used by all programs
7009 that support '-rand'.
7012 *) In RAND_write_file, use mode 0600 for creating files;
7013 don't just chmod when it may be too late.
7016 *) Report an error from X509_STORE_load_locations
7017 when X509_LOOKUP_load_file or X509_LOOKUP_add_dir failed.
7020 *) New function ASN1_mbstring_copy() this copies a string in either
7021 ASCII, Unicode, Universal (4 bytes per character) or UTF8 format
7022 into an ASN1_STRING type. A mask of permissible types is passed
7023 and it chooses the "minimal" type to use or an error if not type
7027 *) Add function equivalents to the various macros in asn1.h. The old
7028 macros are retained with an M_ prefix. Code inside the library can
7029 use the M_ macros. External code (including the openssl utility)
7030 should *NOT* in order to be "shared library friendly".
7033 *) Add various functions that can check a certificate's extensions
7034 to see if it usable for various purposes such as SSL client,
7035 server or S/MIME and CAs of these types. This is currently
7036 VERY EXPERIMENTAL but will ultimately be used for certificate chain
7037 verification. Also added a -purpose flag to x509 utility to
7038 print out all the purposes.
7041 *) Add a CRYPTO_EX_DATA to X509 certificate structure and associated
7045 *) New X509V3_{X509,CRL,REVOKED}_get_d2i() functions. These will search
7046 for, obtain and decode and extension and obtain its critical flag.
7047 This allows all the necessary extension code to be handled in a
7048 single function call.
7051 *) RC4 tune-up featuring 30-40% performance improvement on most RISC
7052 platforms. See crypto/rc4/rc4_enc.c for further details.
7055 *) New -noout option to asn1parse. This causes no output to be produced
7056 its main use is when combined with -strparse and -out to extract data
7057 from a file (which may not be in ASN.1 format).
7060 *) Fix for pkcs12 program. It was hashing an invalid certificate pointer
7061 when producing the local key id.
7062 [Richard Levitte <levitte@stacken.kth.se>]
7064 *) New option -dhparam in s_server. This allows a DH parameter file to be
7065 stated explicitly. If it is not stated then it tries the first server
7066 certificate file. The previous behaviour hard coded the filename
7070 *) Add -pubin and -pubout options to the rsa and dsa commands. These allow
7071 a public key to be input or output. For example:
7072 openssl rsa -in key.pem -pubout -out pubkey.pem
7073 Also added necessary DSA public key functions to handle this.
7076 *) Fix so PKCS7_dataVerify() doesn't crash if no certificates are contained
7077 in the message. This was handled by allowing
7078 X509_find_by_issuer_and_serial() to tolerate a NULL passed to it.
7079 [Steve Henson, reported by Sampo Kellomaki <sampo@mail.neuronio.pt>]
7081 *) Fix for bug in d2i_ASN1_bytes(): other ASN1 functions add an extra null
7082 to the end of the strings whereas this didn't. This would cause problems
7083 if strings read with d2i_ASN1_bytes() were later modified.
7084 [Steve Henson, reported by Arne Ansper <arne@ats.cyber.ee>]
7086 *) Fix for base64 decode bug. When a base64 bio reads only one line of
7087 data and it contains EOF it will end up returning an error. This is
7088 caused by input 46 bytes long. The cause is due to the way base64
7089 BIOs find the start of base64 encoded data. They do this by trying a
7090 trial decode on each line until they find one that works. When they
7091 do a flag is set and it starts again knowing it can pass all the
7092 data directly through the decoder. Unfortunately it doesn't reset
7093 the context it uses. This means that if EOF is reached an attempt
7094 is made to pass two EOFs through the context and this causes the
7095 resulting error. This can also cause other problems as well. As is
7096 usual with these problems it takes *ages* to find and the fix is
7097 trivial: move one line.
7098 [Steve Henson, reported by ian@uns.ns.ac.yu (Ivan Nejgebauer) ]
7100 *) Ugly workaround to get s_client and s_server working under Windows. The
7101 old code wouldn't work because it needed to select() on sockets and the
7102 tty (for keypresses and to see if data could be written). Win32 only
7103 supports select() on sockets so we select() with a 1s timeout on the
7104 sockets and then see if any characters are waiting to be read, if none
7105 are present then we retry, we also assume we can always write data to
7106 the tty. This isn't nice because the code then blocks until we've
7107 received a complete line of data and it is effectively polling the
7108 keyboard at 1s intervals: however it's quite a bit better than not
7109 working at all :-) A dedicated Windows application might handle this
7110 with an event loop for example.
7113 *) Enhance RSA_METHOD structure. Now there are two extra methods, rsa_sign
7114 and rsa_verify. When the RSA_FLAGS_SIGN_VER option is set these functions
7115 will be called when RSA_sign() and RSA_verify() are used. This is useful
7116 if rsa_pub_dec() and rsa_priv_enc() equivalents are not available.
7117 For this to work properly RSA_public_decrypt() and RSA_private_encrypt()
7118 should *not* be used: RSA_sign() and RSA_verify() must be used instead.
7119 This necessitated the support of an extra signature type NID_md5_sha1
7120 for SSL signatures and modifications to the SSL library to use it instead
7121 of calling RSA_public_decrypt() and RSA_private_encrypt().
7124 *) Add new -verify -CAfile and -CApath options to the crl program, these
7125 will lookup a CRL issuers certificate and verify the signature in a
7126 similar way to the verify program. Tidy up the crl program so it
7127 no longer accesses structures directly. Make the ASN1 CRL parsing a bit
7128 less strict. It will now permit CRL extensions even if it is not
7129 a V2 CRL: this will allow it to tolerate some broken CRLs.
7132 *) Initialize all non-automatic variables each time one of the openssl
7133 sub-programs is started (this is necessary as they may be started
7134 multiple times from the "OpenSSL>" prompt).
7135 [Lennart Bang, Bodo Moeller]
7137 *) Preliminary compilation option RSA_NULL which disables RSA crypto without
7138 removing all other RSA functionality (this is what NO_RSA does). This
7139 is so (for example) those in the US can disable those operations covered
7140 by the RSA patent while allowing storage and parsing of RSA keys and RSA
7144 *) Non-copying interface to BIO pairs.
7145 (still largely untested)
7148 *) New function ANS1_tag2str() to convert an ASN1 tag to a descriptive
7149 ASCII string. This was handled independently in various places before.
7152 *) New functions UTF8_getc() and UTF8_putc() that parse and generate
7153 UTF8 strings a character at a time.
7156 *) Use client_version from client hello to select the protocol
7157 (s23_srvr.c) and for RSA client key exchange verification
7158 (s3_srvr.c), as required by the SSL 3.0/TLS 1.0 specifications.
7161 *) Add various utility functions to handle SPKACs, these were previously
7162 handled by poking round in the structure internals. Added new function
7163 NETSCAPE_SPKI_print() to print out SPKAC and a new utility 'spkac' to
7164 print, verify and generate SPKACs. Based on an original idea from
7165 Massimiliano Pala <madwolf@comune.modena.it> but extensively modified.
7168 *) RIPEMD160 is operational on all platforms and is back in 'make test'.
7171 *) Allow the config file extension section to be overwritten on the
7172 command line. Based on an original idea from Massimiliano Pala
7173 <madwolf@comune.modena.it>. The new option is called -extensions
7174 and can be applied to ca, req and x509. Also -reqexts to override
7175 the request extensions in req and -crlexts to override the crl extensions
7179 *) Add new feature to the SPKAC handling in ca. Now you can include
7180 the same field multiple times by preceding it by "XXXX." for example:
7183 this is the same syntax as used in the req config file.
7186 *) Allow certificate extensions to be added to certificate requests. These
7187 are specified in a 'req_extensions' option of the req section of the
7188 config file. They can be printed out with the -text option to req but
7189 are otherwise ignored at present.
7192 *) Fix a horrible bug in enc_read() in crypto/evp/bio_enc.c: if the first
7193 data read consists of only the final block it would not decrypted because
7194 EVP_CipherUpdate() would correctly report zero bytes had been decrypted.
7195 A misplaced 'break' also meant the decrypted final block might not be
7196 copied until the next read.
7199 *) Initial support for DH_METHOD. Again based on RSA_METHOD. Also added
7200 a few extra parameters to the DH structure: these will be useful if
7201 for example we want the value of 'q' or implement X9.42 DH.
7204 *) Initial support for DSA_METHOD. This is based on the RSA_METHOD and
7205 provides hooks that allow the default DSA functions or functions on a
7206 "per key" basis to be replaced. This allows hardware acceleration and
7207 hardware key storage to be handled without major modification to the
7208 library. Also added low level modexp hooks and CRYPTO_EX structure and
7209 associated functions.
7212 *) Add a new flag to memory BIOs, BIO_FLAG_MEM_RDONLY. This marks the BIO
7213 as "read only": it can't be written to and the buffer it points to will
7214 not be freed. Reading from a read only BIO is much more efficient than
7215 a normal memory BIO. This was added because there are several times when
7216 an area of memory needs to be read from a BIO. The previous method was
7217 to create a memory BIO and write the data to it, this results in two
7218 copies of the data and an O(n^2) reading algorithm. There is a new
7219 function BIO_new_mem_buf() which creates a read only memory BIO from
7220 an area of memory. Also modified the PKCS#7 routines to use read only
7224 *) Bugfix: ssl23_get_client_hello did not work properly when called in
7225 state SSL23_ST_SR_CLNT_HELLO_B, i.e. when the first 7 bytes of
7226 a SSLv2-compatible client hello for SSLv3 or TLSv1 could be read,
7227 but a retry condition occured while trying to read the rest.
7230 *) The PKCS7_ENC_CONTENT_new() function was setting the content type as
7231 NID_pkcs7_encrypted by default: this was wrong since this should almost
7232 always be NID_pkcs7_data. Also modified the PKCS7_set_type() to handle
7233 the encrypted data type: this is a more sensible place to put it and it
7234 allows the PKCS#12 code to be tidied up that duplicated this
7238 *) Changed obj_dat.pl script so it takes its input and output files on
7239 the command line. This should avoid shell escape redirection problems
7243 *) Initial support for certificate extension requests, these are included
7244 in things like Xenroll certificate requests. Included functions to allow
7245 extensions to be obtained and added.
7248 *) -crlf option to s_client and s_server for sending newlines as
7249 CRLF (as required by many protocols).
7252 Changes between 0.9.3a and 0.9.4 [09 Aug 1999]
7254 *) Install libRSAglue.a when OpenSSL is built with RSAref.
7255 [Ralf S. Engelschall]
7257 *) A few more ``#ifndef NO_FP_API / #endif'' pairs for consistency.
7258 [Andrija Antonijevic <TheAntony2@bigfoot.com>]
7260 *) Fix -startdate and -enddate (which was missing) arguments to 'ca'
7264 *) New function DSA_dup_DH, which duplicates DSA parameters/keys as
7265 DH parameters/keys (q is lost during that conversion, but the resulting
7266 DH parameters contain its length).
7268 For 1024-bit p, DSA_generate_parameters followed by DSA_dup_DH is
7269 much faster than DH_generate_parameters (which creates parameters
7270 where p = 2*q + 1), and also the smaller q makes DH computations
7271 much more efficient (160-bit exponentiation instead of 1024-bit
7272 exponentiation); so this provides a convenient way to support DHE
7273 ciphersuites in SSL/TLS servers (see ssl/ssltest.c). It is of
7274 utter importance to use
7275 SSL_CTX_set_options(s_ctx, SSL_OP_SINGLE_DH_USE);
7277 SSL_set_options(s_ctx, SSL_OP_SINGLE_DH_USE);
7278 when such DH parameters are used, because otherwise small subgroup
7279 attacks may become possible!
7282 *) Avoid memory leak in i2d_DHparams.
7285 *) Allow the -k option to be used more than once in the enc program:
7286 this allows the same encrypted message to be read by multiple recipients.
7289 *) New function OBJ_obj2txt(buf, buf_len, a, no_name), this converts
7290 an ASN1_OBJECT to a text string. If the "no_name" parameter is set then
7291 it will always use the numerical form of the OID, even if it has a short
7295 *) Added an extra RSA flag: RSA_FLAG_EXT_PKEY. Previously the rsa_mod_exp
7296 method only got called if p,q,dmp1,dmq1,iqmp components were present,
7297 otherwise bn_mod_exp was called. In the case of hardware keys for example
7298 no private key components need be present and it might store extra data
7299 in the RSA structure, which cannot be accessed from bn_mod_exp.
7300 By setting RSA_FLAG_EXT_PKEY rsa_mod_exp will always be called for
7301 private key operations.
7304 *) Added support for SPARC Linux.
7307 *) pem_password_cb function type incompatibly changed from
7308 typedef int pem_password_cb(char *buf, int size, int rwflag);
7310 ....(char *buf, int size, int rwflag, void *userdata);
7311 so that applications can pass data to their callbacks:
7312 The PEM[_ASN1]_{read,write}... functions and macros now take an
7313 additional void * argument, which is just handed through whenever
7314 the password callback is called.
7315 [Damien Miller <dmiller@ilogic.com.au>; tiny changes by Bodo Moeller]
7317 New function SSL_CTX_set_default_passwd_cb_userdata.
7319 Compatibility note: As many C implementations push function arguments
7320 onto the stack in reverse order, the new library version is likely to
7321 interoperate with programs that have been compiled with the old
7322 pem_password_cb definition (PEM_whatever takes some data that
7323 happens to be on the stack as its last argument, and the callback
7324 just ignores this garbage); but there is no guarantee whatsoever that
7327 *) The -DPLATFORM="\"$(PLATFORM)\"" definition and the similar -DCFLAGS=...
7328 (both in crypto/Makefile.ssl for use by crypto/cversion.c) caused
7329 problems not only on Windows, but also on some Unix platforms.
7330 To avoid problematic command lines, these definitions are now in an
7331 auto-generated file crypto/buildinf.h (created by crypto/Makefile.ssl
7332 for standard "make" builds, by util/mk1mf.pl for "mk1mf" builds).
7335 *) MIPS III/IV assembler module is reimplemented.
7338 *) More DES library cleanups: remove references to srand/rand and
7339 delete an unused file.
7342 *) Add support for the the free Netwide assembler (NASM) under Win32,
7343 since not many people have MASM (ml) and it can be hard to obtain.
7344 This is currently experimental but it seems to work OK and pass all
7345 the tests. Check out INSTALL.W32 for info.
7348 *) Fix memory leaks in s3_clnt.c: All non-anonymous SSL3/TLS1 connections
7349 without temporary keys kept an extra copy of the server key,
7350 and connections with temporary keys did not free everything in case
7354 *) New function RSA_check_key and new openssl rsa option -check
7355 for verifying the consistency of RSA keys.
7356 [Ulf Moeller, Bodo Moeller]
7358 *) Various changes to make Win32 compile work:
7359 1. Casts to avoid "loss of data" warnings in p5_crpt2.c
7360 2. Change unsigned int to int in b_dump.c to avoid "signed/unsigned
7361 comparison" warnings.
7362 3. Add sk_<TYPE>_sort to DEF file generator and do make update.
7365 *) Add a debugging option to PKCS#5 v2 key generation function: when
7366 you #define DEBUG_PKCS5V2 passwords, salts, iteration counts and
7367 derived keys are printed to stderr.
7370 *) Copy the flags in ASN1_STRING_dup().
7371 [Roman E. Pavlov <pre@mo.msk.ru>]
7373 *) The x509 application mishandled signing requests containing DSA
7374 keys when the signing key was also DSA and the parameters didn't match.
7376 It was supposed to omit the parameters when they matched the signing key:
7377 the verifying software was then supposed to automatically use the CA's
7378 parameters if they were absent from the end user certificate.
7380 Omitting parameters is no longer recommended. The test was also
7381 the wrong way round! This was probably due to unusual behaviour in
7382 EVP_cmp_parameters() which returns 1 if the parameters match.
7383 This meant that parameters were omitted when they *didn't* match and
7384 the certificate was useless. Certificates signed with 'ca' didn't have
7386 [Steve Henson, reported by Doug Erickson <Doug.Erickson@Part.NET>]
7388 *) Memory leak checking (-DCRYPTO_MDEBUG) had some problems.
7389 The interface is as follows:
7390 Applications can use
7391 CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_ON) aka MemCheck_start(),
7392 CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_OFF) aka MemCheck_stop();
7393 "off" is now the default.
7394 The library internally uses
7395 CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_DISABLE) aka MemCheck_off(),
7396 CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_ENABLE) aka MemCheck_on()
7397 to disable memory-checking temporarily.
7399 Some inconsistent states that previously were possible (and were
7400 even the default) are now avoided.
7402 -DCRYPTO_MDEBUG_TIME is new and additionally stores the current time
7403 with each memory chunk allocated; this is occasionally more helpful
7404 than just having a counter.
7406 -DCRYPTO_MDEBUG_THREAD is also new and adds the thread ID.
7408 -DCRYPTO_MDEBUG_ALL enables all of the above, plus any future
7412 *) Introduce "mode" for SSL structures (with defaults in SSL_CTX),
7413 which largely parallels "options", but is for changing API behaviour,
7414 whereas "options" are about protocol behaviour.
7415 Initial "mode" flags are:
7417 SSL_MODE_ENABLE_PARTIAL_WRITE Allow SSL_write to report success when
7418 a single record has been written.
7419 SSL_MODE_ACCEPT_MOVING_WRITE_BUFFER Don't insist that SSL_write
7420 retries use the same buffer location.
7421 (But all of the contents must be
7425 *) Bugfix: SSL_set_options ignored its parameter, only SSL_CTX_set_options
7428 *) Fix problems with no-hmac etc.
7429 [Ulf Möller, pointed out by Brian Wellington <bwelling@tislabs.com>]
7431 *) New functions RSA_get_default_method(), RSA_set_method() and
7432 RSA_get_method(). These allows replacement of RSA_METHODs without having
7433 to mess around with the internals of an RSA structure.
7436 *) Fix memory leaks in DSA_do_sign and DSA_is_prime.
7437 Also really enable memory leak checks in openssl.c and in some
7439 [Chad C. Mulligan, Bodo Moeller]
7441 *) Fix a bug in d2i_ASN1_INTEGER() and i2d_ASN1_INTEGER() which can mess
7442 up the length of negative integers. This has now been simplified to just
7443 store the length when it is first determined and use it later, rather
7444 than trying to keep track of where data is copied and updating it to
7446 [Steve Henson, reported by Brien Wheeler
7447 <bwheeler@authentica-security.com>]
7449 *) Add a new function PKCS7_signatureVerify. This allows the verification
7450 of a PKCS#7 signature but with the signing certificate passed to the
7451 function itself. This contrasts with PKCS7_dataVerify which assumes the
7452 certificate is present in the PKCS#7 structure. This isn't always the
7453 case: certificates can be omitted from a PKCS#7 structure and be
7454 distributed by "out of band" means (such as a certificate database).
7457 *) Complete the PEM_* macros with DECLARE_PEM versions to replace the
7458 function prototypes in pem.h, also change util/mkdef.pl to add the
7459 necessary function names.
7462 *) mk1mf.pl (used by Windows builds) did not properly read the
7463 options set by Configure in the top level Makefile, and Configure
7464 was not even able to write more than one option correctly.
7465 Fixed, now "no-idea no-rc5 -DCRYPTO_MDEBUG" etc. works as intended.
7468 *) New functions CONF_load_bio() and CONF_load_fp() to allow a config
7469 file to be loaded from a BIO or FILE pointer. The BIO version will
7470 for example allow memory BIOs to contain config info.
7473 *) New function "CRYPTO_num_locks" that returns CRYPTO_NUM_LOCKS.
7474 Whoever hopes to achieve shared-library compatibility across versions
7475 must use this, not the compile-time macro.
7476 (Exercise 0.9.4: Which is the minimum library version required by
7478 Note: All this applies only to multi-threaded programs, others don't
7482 *) Add missing case to s3_clnt.c state machine -- one of the new SSL tests
7483 through a BIO pair triggered the default case, i.e.
7484 SSLerr(...,SSL_R_UNKNOWN_STATE).
7487 *) New "BIO pair" concept (crypto/bio/bss_bio.c) so that applications
7488 can use the SSL library even if none of the specific BIOs is
7492 *) Fix a bug in i2d_DSAPublicKey() which meant it returned the wrong value
7493 for the encoded length.
7494 [Jeon KyoungHo <khjeon@sds.samsung.co.kr>]
7496 *) Add initial documentation of the X509V3 functions.
7499 *) Add a new pair of functions PEM_write_PKCS8PrivateKey() and
7500 PEM_write_bio_PKCS8PrivateKey() that are equivalent to
7501 PEM_write_PrivateKey() and PEM_write_bio_PrivateKey() but use the more
7502 secure PKCS#8 private key format with a high iteration count.
7505 *) Fix determination of Perl interpreter: A perl or perl5
7506 _directory_ in $PATH was also accepted as the interpreter.
7507 [Ralf S. Engelschall]
7509 *) Fix demos/sign/sign.c: well there wasn't anything strictly speaking
7510 wrong with it but it was very old and did things like calling
7511 PEM_ASN1_read() directly and used MD5 for the hash not to mention some
7515 *) Fix demos/selfsign.c: it used obsolete and deleted functions, changed
7516 to use the new extension code.
7519 *) Implement the PEM_read/PEM_write functions in crypto/pem/pem_all.c
7520 with macros. This should make it easier to change their form, add extra
7521 arguments etc. Fix a few PEM prototypes which didn't have cipher as a
7525 *) Add to configuration table a new entry that can specify an alternative
7526 name for unistd.h (for pre-POSIX systems); we need this for NeXTstep,
7527 according to Mark Crispin <MRC@Panda.COM>.
7531 *) DES CBC did not update the IV. Weird.
7534 des_cbc_encrypt does not update the IV, but des_ncbc_encrypt does.
7535 Changing the behaviour of the former might break existing programs --
7536 where IV updating is needed, des_ncbc_encrypt can be used.
7539 *) When bntest is run from "make test" it drives bc to check its
7540 calculations, as well as internally checking them. If an internal check
7541 fails, it needs to cause bc to give a non-zero result or make test carries
7542 on without noticing the failure. Fixed.
7545 *) DES library cleanups.
7548 *) Add support for PKCS#5 v2.0 PBE algorithms. This will permit PKCS#8 to be
7549 used with any cipher unlike PKCS#5 v1.5 which can at most handle 64 bit
7550 ciphers. NOTE: although the key derivation function has been verified
7551 against some published test vectors it has not been extensively tested
7552 yet. Added a -v2 "cipher" option to pkcs8 application to allow the use
7556 *) Instead of "mkdir -p", which is not fully portable, use new
7557 Perl script "util/mkdir-p.pl".
7560 *) Rewrite the way password based encryption (PBE) is handled. It used to
7561 assume that the ASN1 AlgorithmIdentifier parameter was a PBEParameter
7562 structure. This was true for the PKCS#5 v1.5 and PKCS#12 PBE algorithms
7563 but doesn't apply to PKCS#5 v2.0 where it can be something else. Now
7564 the 'parameter' field of the AlgorithmIdentifier is passed to the
7565 underlying key generation function so it must do its own ASN1 parsing.
7566 This has also changed the EVP_PBE_CipherInit() function which now has a
7567 'parameter' argument instead of literal salt and iteration count values
7568 and the function EVP_PBE_ALGOR_CipherInit() has been deleted.
7571 *) Support for PKCS#5 v1.5 compatible password based encryption algorithms
7572 and PKCS#8 functionality. New 'pkcs8' application linked to openssl.
7573 Needed to change the PEM_STRING_EVP_PKEY value which was just "PRIVATE
7574 KEY" because this clashed with PKCS#8 unencrypted string. Since this
7575 value was just used as a "magic string" and not used directly its
7576 value doesn't matter.
7579 *) Introduce some semblance of const correctness to BN. Shame C doesn't
7583 *) "linux-sparc64" configuration (ultrapenguin).
7584 [Ray Miller <ray.miller@oucs.ox.ac.uk>]
7585 "linux-sparc" configuration.
7586 [Christian Forster <fo@hawo.stw.uni-erlangen.de>]
7588 *) config now generates no-xxx options for missing ciphers.
7591 *) Support the EBCDIC character set (work in progress).
7592 File ebcdic.c not yet included because it has a different license.
7593 [Martin Kraemer <Martin.Kraemer@MchP.Siemens.De>]
7595 *) Support BS2000/OSD-POSIX.
7596 [Martin Kraemer <Martin.Kraemer@MchP.Siemens.De>]
7598 *) Make callbacks for key generation use void * instead of char *.
7601 *) Make S/MIME samples compile (not yet tested).
7604 *) Additional typesafe stacks.
7607 *) New configuration variants "bsdi-elf-gcc" (BSD/OS 4.x).
7611 Changes between 0.9.3 and 0.9.3a [29 May 1999]
7613 *) New configuration variant "sco5-gcc".
7615 *) Updated some demos.
7616 [Sean O Riordain, Wade Scholine]
7618 *) Add missing BIO_free at exit of pkcs12 application.
7621 *) Fix memory leak in conf.c.
7624 *) Updates for Win32 to assembler version of MD5.
7627 *) Set #! path to perl in apps/der_chop to where we found it
7628 instead of using a fixed path.
7631 *) SHA library changes for irix64-mips4-cc.
7634 *) Improvements for VMS support.
7638 Changes between 0.9.2b and 0.9.3 [24 May 1999]
7640 *) Bignum library bug fix. IRIX 6 passes "make test" now!
7641 This also avoids the problems with SC4.2 and unpatched SC5.
7642 [Andy Polyakov <appro@fy.chalmers.se>]
7644 *) New functions sk_num, sk_value and sk_set to replace the previous macros.
7645 These are required because of the typesafe stack would otherwise break
7646 existing code. If old code used a structure member which used to be STACK
7647 and is now STACK_OF (for example cert in a PKCS7_SIGNED structure) with
7648 sk_num or sk_value it would produce an error because the num, data members
7649 are not present in STACK_OF. Now it just produces a warning. sk_set
7650 replaces the old method of assigning a value to sk_value
7651 (e.g. sk_value(x, i) = y) which the library used in a few cases. Any code
7652 that does this will no longer work (and should use sk_set instead) but
7653 this could be regarded as a "questionable" behaviour anyway.
7656 *) Fix most of the other PKCS#7 bugs. The "experimental" code can now
7657 correctly handle encrypted S/MIME data.
7660 *) Change type of various DES function arguments from des_cblock
7661 (which means, in function argument declarations, pointer to char)
7662 to des_cblock * (meaning pointer to array with 8 char elements),
7663 which allows the compiler to do more typechecking; it was like
7664 that back in SSLeay, but with lots of ugly casts.
7666 Introduce new type const_des_cblock.
7669 *) Reorganise the PKCS#7 library and get rid of some of the more obvious
7670 problems: find RecipientInfo structure that matches recipient certificate
7671 and initialise the ASN1 structures properly based on passed cipher.
7674 *) Belatedly make the BN tests actually check the results.
7677 *) Fix the encoding and decoding of negative ASN1 INTEGERS and conversion
7678 to and from BNs: it was completely broken. New compilation option
7679 NEG_PUBKEY_BUG to allow for some broken certificates that encode public
7680 key elements as negative integers.
7683 *) Reorganize and speed up MD5.
7684 [Andy Polyakov <appro@fy.chalmers.se>]
7687 [Richard Levitte <richard@levitte.org>]
7689 *) New option -out to asn1parse to allow the parsed structure to be
7690 output to a file. This is most useful when combined with the -strparse
7691 option to examine the output of things like OCTET STRINGS.
7694 *) Make SSL library a little more fool-proof by not requiring any longer
7695 that SSL_set_{accept,connect}_state be called before
7696 SSL_{accept,connect} may be used (SSL_set_..._state is omitted
7697 in many applications because usually everything *appeared* to work as
7698 intended anyway -- now it really works as intended).
7701 *) Move openssl.cnf out of lib/.
7704 *) Fix various things to let OpenSSL even pass ``egcc -pipe -O2 -Wall
7705 -Wshadow -Wpointer-arith -Wcast-align -Wmissing-prototypes
7706 -Wmissing-declarations -Wnested-externs -Winline'' with EGCS 1.1.2+
7707 [Ralf S. Engelschall]
7709 *) Various fixes to the EVP and PKCS#7 code. It may now be able to
7710 handle PKCS#7 enveloped data properly.
7711 [Sebastian Akerman <sak@parallelconsulting.com>, modified by Steve]
7713 *) Create a duplicate of the SSL_CTX's CERT in SSL_new instead of
7714 copying pointers. The cert_st handling is changed by this in
7715 various ways (and thus what used to be known as ctx->default_cert
7716 is now called ctx->cert, since we don't resort to s->ctx->[default_]cert
7717 any longer when s->cert does not give us what we need).
7718 ssl_cert_instantiate becomes obsolete by this change.
7719 As soon as we've got the new code right (possibly it already is?),
7720 we have solved a couple of bugs of the earlier code where s->cert
7721 was used as if it could not have been shared with other SSL structures.
7723 Note that using the SSL API in certain dirty ways now will result
7724 in different behaviour than observed with earlier library versions:
7725 Changing settings for an SSL_CTX *ctx after having done s = SSL_new(ctx)
7726 does not influence s as it used to.
7728 In order to clean up things more thoroughly, inside SSL_SESSION
7729 we don't use CERT any longer, but a new structure SESS_CERT
7730 that holds per-session data (if available); currently, this is
7731 the peer's certificate chain and, for clients, the server's certificate
7732 and temporary key. CERT holds only those values that can have
7733 meaningful defaults in an SSL_CTX.
7736 *) New function X509V3_EXT_i2d() to create an X509_EXTENSION structure
7737 from the internal representation. Various PKCS#7 fixes: remove some
7738 evil casts and set the enc_dig_alg field properly based on the signing
7742 *) Allow PKCS#12 password to be set from the command line or the
7743 environment. Let 'ca' get its config file name from the environment
7744 variables "OPENSSL_CONF" or "SSLEAY_CONF" (for consistency with 'req'
7748 *) Allow certificate policies extension to use an IA5STRING for the
7749 organization field. This is contrary to the PKIX definition but
7750 VeriSign uses it and IE5 only recognises this form. Document 'x509'
7754 *) Add PEDANTIC compiler flag to allow compilation with gcc -pedantic,
7755 without disallowing inline assembler and the like for non-pedantic builds.
7758 *) Support Borland C++ builder.
7759 [Janez Jere <jj@void.si>, modified by Ulf Möller]
7764 *) SHA-1 cleanups and performance enhancements.
7765 [Andy Polyakov <appro@fy.chalmers.se>]
7767 *) Sparc v8plus assembler for the bignum library.
7768 [Andy Polyakov <appro@fy.chalmers.se>]
7770 *) Accept any -xxx and +xxx compiler options in Configure.
7773 *) Update HPUX configuration.
7776 *) Add missing sk_<type>_unshift() function to safestack.h
7777 [Ralf S. Engelschall]
7779 *) New function SSL_CTX_use_certificate_chain_file that sets the
7780 "extra_cert"s in addition to the certificate. (This makes sense
7781 only for "PEM" format files, as chains as a whole are not
7785 *) Support verify_depth from the SSL API.
7786 x509_vfy.c had what can be considered an off-by-one-error:
7787 Its depth (which was not part of the external interface)
7788 was actually counting the number of certificates in a chain;
7789 now it really counts the depth.
7792 *) Bugfix in crypto/x509/x509_cmp.c: The SSLerr macro was used
7793 instead of X509err, which often resulted in confusing error
7794 messages since the error codes are not globally unique
7795 (e.g. an alleged error in ssl3_accept when a certificate
7796 didn't match the private key).
7798 *) New function SSL_CTX_set_session_id_context that allows to set a default
7799 value (so that you don't need SSL_set_session_id_context for each
7800 connection using the SSL_CTX).
7803 *) OAEP decoding bug fix.
7806 *) Support INSTALL_PREFIX for package builders, as proposed by
7810 *) New Configure options "threads" and "no-threads". For systems
7811 where the proper compiler options are known (currently Solaris
7812 and Linux), "threads" is the default.
7815 *) New script util/mklink.pl as a faster substitute for util/mklink.sh.
7818 *) Install various scripts to $(OPENSSLDIR)/misc, not to
7819 $(INSTALLTOP)/bin -- they shouldn't clutter directories
7820 such as /usr/local/bin.
7823 *) "make linux-shared" to build shared libraries.
7824 [Niels Poppe <niels@netbox.org>]
7826 *) New Configure option no-<cipher> (rsa, idea, rc5, ...).
7829 *) Add the PKCS#12 API documentation to openssl.txt. Preliminary support for
7830 extension adding in x509 utility.
7833 *) Remove NOPROTO sections and error code comments.
7836 *) Partial rewrite of the DEF file generator to now parse the ANSI
7840 *) New Configure options --prefix=DIR and --openssldir=DIR.
7843 *) Complete rewrite of the error code script(s). It is all now handled
7844 by one script at the top level which handles error code gathering,
7845 header rewriting and C source file generation. It should be much better
7846 than the old method: it now uses a modified version of Ulf's parser to
7847 read the ANSI prototypes in all header files (thus the old K&R definitions
7848 aren't needed for error creation any more) and do a better job of
7849 translating function codes into names. The old 'ASN1 error code imbedded
7850 in a comment' is no longer necessary and it doesn't use .err files which
7851 have now been deleted. Also the error code call doesn't have to appear all
7852 on one line (which resulted in some large lines...).
7855 *) Change #include filenames from <foo.h> to <openssl/foo.h>.
7858 *) Change behaviour of ssl2_read when facing length-0 packets: Don't return
7859 0 (which usually indicates a closed connection), but continue reading.
7862 *) Fix some race conditions.
7865 *) Add support for CRL distribution points extension. Add Certificate
7866 Policies and CRL distribution points documentation.
7869 *) Move the autogenerated header file parts to crypto/opensslconf.h.
7872 *) Fix new 56-bit DES export ciphersuites: they were using 7 bytes instead of
7873 8 of keying material. Merlin has also confirmed interop with this fix
7874 between OpenSSL and Baltimore C/SSL 2.0 and J/SSL 2.0.
7875 [Merlin Hughes <merlin@baltimore.ie>]
7877 *) Fix lots of warnings.
7878 [Richard Levitte <levitte@stacken.kth.se>]
7880 *) In add_cert_dir() in crypto/x509/by_dir.c, break out of the loop if
7881 the directory spec didn't end with a LIST_SEPARATOR_CHAR.
7882 [Richard Levitte <levitte@stacken.kth.se>]
7884 *) Fix problems with sizeof(long) == 8.
7885 [Andy Polyakov <appro@fy.chalmers.se>]
7887 *) Change functions to ANSI C.
7890 *) Fix typos in error codes.
7891 [Martin Kraemer <Martin.Kraemer@MchP.Siemens.De>, Ulf Möller]
7893 *) Remove defunct assembler files from Configure.
7896 *) SPARC v8 assembler BIGNUM implementation.
7897 [Andy Polyakov <appro@fy.chalmers.se>]
7899 *) Support for Certificate Policies extension: both print and set.
7900 Various additions to support the r2i method this uses.
7903 *) A lot of constification, and fix a bug in X509_NAME_oneline() that could
7904 return a const string when you are expecting an allocated buffer.
7907 *) Add support for ASN1 types UTF8String and VISIBLESTRING, also the CHOICE
7908 types DirectoryString and DisplayText.
7911 *) Add code to allow r2i extensions to access the configuration database,
7912 add an LHASH database driver and add several ctx helper functions.
7915 *) Fix an evil bug in bn_expand2() which caused various BN functions to
7916 fail when they extended the size of a BIGNUM.
7919 *) Various utility functions to handle SXNet extension. Modify mkdef.pl to
7920 support typesafe stack.
7923 *) Fix typo in SSL_[gs]et_options().
7924 [Nils Frostberg <nils@medcom.se>]
7926 *) Delete various functions and files that belonged to the (now obsolete)
7927 old X509V3 handling code.
7930 *) New Configure option "rsaref".
7933 *) Don't auto-generate pem.h.
7936 *) Introduce type-safe ASN.1 SETs.
7939 *) Convert various additional casted stacks to type-safe STACK_OF() variants.
7940 [Ben Laurie, Ralf S. Engelschall, Steve Henson]
7942 *) Introduce type-safe STACKs. This will almost certainly break lots of code
7943 that links with OpenSSL (well at least cause lots of warnings), but fear
7944 not: the conversion is trivial, and it eliminates loads of evil casts. A
7945 few STACKed things have been converted already. Feel free to convert more.
7946 In the fullness of time, I'll do away with the STACK type altogether.
7949 *) Add `openssl ca -revoke <certfile>' facility which revokes a certificate
7950 specified in <certfile> by updating the entry in the index.txt file.
7951 This way one no longer has to edit the index.txt file manually for
7952 revoking a certificate. The -revoke option does the gory details now.
7953 [Massimiliano Pala <madwolf@openca.org>, Ralf S. Engelschall]
7955 *) Fix `openssl crl -noout -text' combination where `-noout' killed the
7956 `-text' option at all and this way the `-noout -text' combination was
7957 inconsistent in `openssl crl' with the friends in `openssl x509|rsa|dsa'.
7958 [Ralf S. Engelschall]
7960 *) Make sure a corresponding plain text error message exists for the
7961 X509_V_ERR_CERT_REVOKED/23 error number which can occur when a
7962 verify callback function determined that a certificate was revoked.
7963 [Ralf S. Engelschall]
7965 *) Bugfix: In test/testenc, don't test "openssl <cipher>" for
7966 ciphers that were excluded, e.g. by -DNO_IDEA. Also, test
7967 all available cipers including rc5, which was forgotten until now.
7968 In order to let the testing shell script know which algorithms
7969 are available, a new (up to now undocumented) command
7970 "openssl list-cipher-commands" is used.
7973 *) Bugfix: s_client occasionally would sleep in select() when
7974 it should have checked SSL_pending() first.
7977 *) New functions DSA_do_sign and DSA_do_verify to provide access to
7978 the raw DSA values prior to ASN.1 encoding.
7981 *) Tweaks to Configure
7982 [Niels Poppe <niels@netbox.org>]
7984 *) Add support for PKCS#5 v2.0 ASN1 PBES2 structures. No other support,
7988 *) New variables $(RANLIB) and $(PERL) in the Makefiles.
7991 *) New config option to avoid instructions that are illegal on the 80386.
7992 The default code is faster, but requires at least a 486.
7995 *) Got rid of old SSL2_CLIENT_VERSION (inconsistently used) and
7996 SSL2_SERVER_VERSION (not used at all) macros, which are now the
7997 same as SSL2_VERSION anyway.
8000 *) New "-showcerts" option for s_client.
8003 *) Still more PKCS#12 integration. Add pkcs12 application to openssl
8004 application. Various cleanups and fixes.
8007 *) More PKCS#12 integration. Add new pkcs12 directory with Makefile.ssl and
8008 modify error routines to work internally. Add error codes and PBE init
8009 to library startup routines.
8012 *) Further PKCS#12 integration. Added password based encryption, PKCS#8 and
8013 packing functions to asn1 and evp. Changed function names and error
8014 codes along the way.
8017 *) PKCS12 integration: and so it begins... First of several patches to
8018 slowly integrate PKCS#12 functionality into OpenSSL. Add PKCS#12
8019 objects to objects.h
8022 *) Add a new 'indent' option to some X509V3 extension code. Initial ASN1
8023 and display support for Thawte strong extranet extension.
8026 *) Add LinuxPPC support.
8027 [Jeff Dubrule <igor@pobox.org>]
8029 *) Get rid of redundant BN file bn_mulw.c, and rename bn_div64 to
8030 bn_div_words in alpha.s.
8031 [Hannes Reinecke <H.Reinecke@hw.ac.uk> and Ben Laurie]
8033 *) Make sure the RSA OAEP test is skipped under -DRSAref because
8034 OAEP isn't supported when OpenSSL is built with RSAref.
8035 [Ulf Moeller <ulf@fitug.de>]
8037 *) Move definitions of IS_SET/IS_SEQUENCE inside crypto/asn1/asn1.h
8038 so they no longer are missing under -DNOPROTO.
8039 [Soren S. Jorvang <soren@t.dk>]
8042 Changes between 0.9.1c and 0.9.2b [22 Mar 1999]
8044 *) Make SSL_get_peer_cert_chain() work in servers. Unfortunately, it still
8045 doesn't work when the session is reused. Coming soon!
8048 *) Fix a security hole, that allows sessions to be reused in the wrong
8049 context thus bypassing client cert protection! All software that uses
8050 client certs and session caches in multiple contexts NEEDS PATCHING to
8051 allow session reuse! A fuller solution is in the works.
8052 [Ben Laurie, problem pointed out by Holger Reif, Bodo Moeller (and ???)]
8054 *) Some more source tree cleanups (removed obsolete files
8055 crypto/bf/asm/bf586.pl, test/test.txt and crypto/sha/asm/f.s; changed
8056 permission on "config" script to be executable) and a fix for the INSTALL
8058 [Ulf Moeller <ulf@fitug.de>]
8060 *) Remove some legacy and erroneous uses of malloc, free instead of
8062 [Lennart Bang <lob@netstream.se>, with minor changes by Steve]
8064 *) Make rsa_oaep_test return non-zero on error.
8065 [Ulf Moeller <ulf@fitug.de>]
8067 *) Add support for native Solaris shared libraries. Configure
8068 solaris-sparc-sc4-pic, make, then run shlib/solaris-sc4.sh. It'd be nice
8069 if someone would make that last step automatic.
8070 [Matthias Loepfe <Matthias.Loepfe@AdNovum.CH>]
8072 *) ctx_size was not built with the right compiler during "make links". Fixed.
8075 *) Change the meaning of 'ALL' in the cipher list. It now means "everything
8076 except NULL ciphers". This means the default cipher list will no longer
8077 enable NULL ciphers. They need to be specifically enabled e.g. with
8078 the string "DEFAULT:eNULL".
8081 *) Fix to RSA private encryption routines: if p < q then it would
8082 occasionally produce an invalid result. This will only happen with
8083 externally generated keys because OpenSSL (and SSLeay) ensure p > q.
8086 *) Be less restrictive and allow also `perl util/perlpath.pl
8087 /path/to/bin/perl' in addition to `perl util/perlpath.pl /path/to/bin',
8088 because this way one can also use an interpreter named `perl5' (which is
8089 usually the name of Perl 5.xxx on platforms where an Perl 4.x is still
8090 installed as `perl').
8091 [Matthias Loepfe <Matthias.Loepfe@adnovum.ch>]
8093 *) Let util/clean-depend.pl work also with older Perl 5.00x versions.
8094 [Matthias Loepfe <Matthias.Loepfe@adnovum.ch>]
8096 *) Fix Makefile.org so CC,CFLAG etc are passed to 'make links' add
8097 advapi32.lib to Win32 build and change the pem test comparision
8098 to fc.exe (thanks to Ulrich Kroener <kroneru@yahoo.com> for the
8099 suggestion). Fix misplaced ASNI prototypes and declarations in evp.h
8100 and crypto/des/ede_cbcm_enc.c.
8103 *) DES quad checksum was broken on big-endian architectures. Fixed.
8106 *) Comment out two functions in bio.h that aren't implemented. Fix up the
8107 Win32 test batch file so it (might) work again. The Win32 test batch file
8108 is horrible: I feel ill....
8111 *) Move various #ifdefs around so NO_SYSLOG, NO_DIRENT etc are now selected
8112 in e_os.h. Audit of header files to check ANSI and non ANSI
8113 sections: 10 functions were absent from non ANSI section and not exported
8114 from Windows DLLs. Fixed up libeay.num for new functions.
8117 *) Make `openssl version' output lines consistent.
8118 [Ralf S. Engelschall]
8120 *) Fix Win32 symbol export lists for BIO functions: Added
8121 BIO_get_ex_new_index, BIO_get_ex_num, BIO_get_ex_data and BIO_set_ex_data
8122 to ms/libeay{16,32}.def.
8123 [Ralf S. Engelschall]
8125 *) Second round of fixing the OpenSSL perl/ stuff. It now at least compiled
8126 fine under Unix and passes some trivial tests I've now added. But the
8127 whole stuff is horribly incomplete, so a README.1ST with a disclaimer was
8128 added to make sure no one expects that this stuff really works in the
8129 OpenSSL 0.9.2 release. Additionally I've started to clean the XS sources
8130 up and fixed a few little bugs and inconsistencies in OpenSSL.{pm,xs} and
8132 [Ralf S. Engelschall]
8134 *) Fix the generation of two part addresses in perl.
8135 [Kenji Miyake <kenji@miyake.org>, integrated by Ben Laurie]
8137 *) Add config entry for Linux on MIPS.
8138 [John Tobey <jtobey@channel1.com>]
8140 *) Make links whenever Configure is run, unless we are on Windoze.
8143 *) Permit extensions to be added to CRLs using crl_section in openssl.cnf.
8144 Currently only issuerAltName and AuthorityKeyIdentifier make any sense
8148 *) Add a useful kludge to allow package maintainers to specify compiler and
8149 other platforms details on the command line without having to patch the
8150 Configure script everytime: One now can use ``perl Configure
8151 <id>:<details>'', i.e. platform ids are allowed to have details appended
8152 to them (seperated by colons). This is treated as there would be a static
8153 pre-configured entry in Configure's %table under key <id> with value
8154 <details> and ``perl Configure <id>'' is called. So, when you want to
8155 perform a quick test-compile under FreeBSD 3.1 with pgcc and without
8156 assembler stuff you can use ``perl Configure "FreeBSD-elf:pgcc:-O6:::"''
8157 now, which overrides the FreeBSD-elf entry on-the-fly.
8158 [Ralf S. Engelschall]
8160 *) Disable new TLS1 ciphersuites by default: they aren't official yet.
8163 *) Allow DSO flags like -fpic, -fPIC, -KPIC etc. to be specified
8164 on the `perl Configure ...' command line. This way one can compile
8165 OpenSSL libraries with Position Independent Code (PIC) which is needed
8166 for linking it into DSOs.
8167 [Ralf S. Engelschall]
8169 *) Remarkably, export ciphers were totally broken and no-one had noticed!
8173 *) Cleaned up the LICENSE document: The official contact for any license
8174 questions now is the OpenSSL core team under openssl-core@openssl.org.
8175 And add a paragraph about the dual-license situation to make sure people
8176 recognize that _BOTH_ the OpenSSL license _AND_ the SSLeay license apply
8177 to the OpenSSL toolkit.
8178 [Ralf S. Engelschall]
8180 *) General source tree makefile cleanups: Made `making xxx in yyy...'
8181 display consistent in the source tree and replaced `/bin/rm' by `rm'.
8182 Additonally cleaned up the `make links' target: Remove unnecessary
8183 semicolons, subsequent redundant removes, inline point.sh into mklink.sh
8184 to speed processing and no longer clutter the display with confusing
8185 stuff. Instead only the actually done links are displayed.
8186 [Ralf S. Engelschall]
8188 *) Permit null encryption ciphersuites, used for authentication only. It used
8189 to be necessary to set the preprocessor define SSL_ALLOW_ENULL to do this.
8190 It is now necessary to set SSL_FORBID_ENULL to prevent the use of null
8194 *) Add a bunch of fixes to the PKCS#7 stuff. It used to sometimes reorder
8195 signed attributes when verifying signatures (this would break them),
8196 the detached data encoding was wrong and public keys obtained using
8197 X509_get_pubkey() weren't freed.
8200 *) Add text documentation for the BUFFER functions. Also added a work around
8201 to a Win95 console bug. This was triggered by the password read stuff: the
8202 last character typed gets carried over to the next fread(). If you were
8203 generating a new cert request using 'req' for example then the last
8204 character of the passphrase would be CR which would then enter the first
8208 *) Added the new `Includes OpenSSL Cryptography Software' button as
8209 doc/openssl_button.{gif,html} which is similar in style to the old SSLeay
8210 button and can be used by applications based on OpenSSL to show the
8211 relationship to the OpenSSL project.
8212 [Ralf S. Engelschall]
8214 *) Remove confusing variables in function signatures in files
8215 ssl/ssl_lib.c and ssl/ssl.h.
8216 [Lennart Bong <lob@kulthea.stacken.kth.se>]
8218 *) Don't install bss_file.c under PREFIX/include/
8219 [Lennart Bong <lob@kulthea.stacken.kth.se>]
8221 *) Get the Win32 compile working again. Modify mkdef.pl so it can handle
8222 functions that return function pointers and has support for NT specific
8223 stuff. Fix mk1mf.pl and VC-32.pl to support NT differences also. Various
8224 #ifdef WIN32 and WINNTs sprinkled about the place and some changes from
8225 unsigned to signed types: this was killing the Win32 compile.
8228 *) Add new certificate file to stack functions,
8229 SSL_add_dir_cert_subjects_to_stack() and
8230 SSL_add_file_cert_subjects_to_stack(). These largely supplant
8231 SSL_load_client_CA_file(), and can be used to add multiple certs easily
8232 to a stack (usually this is then handed to SSL_CTX_set_client_CA_list()).
8233 This means that Apache-SSL and similar packages don't have to mess around
8234 to add as many CAs as they want to the preferred list.
8237 *) Experiment with doxygen documentation. Currently only partially applied to
8239 See http://www.stack.nl/~dimitri/doxygen/index.html, and run doxygen with
8240 openssl.doxy as the configuration file.
8243 *) Get rid of remaining C++-style comments which strict C compilers hate.
8244 [Ralf S. Engelschall, pointed out by Carlos Amengual]
8246 *) Changed BN_RECURSION in bn_mont.c to BN_RECURSION_MONT so it is not
8247 compiled in by default: it has problems with large keys.
8250 *) Add a bunch of SSL_xxx() functions for configuring the temporary RSA and
8251 DH private keys and/or callback functions which directly correspond to
8252 their SSL_CTX_xxx() counterparts but work on a per-connection basis. This
8253 is needed for applications which have to configure certificates on a
8254 per-connection basis (e.g. Apache+mod_ssl) instead of a per-context basis
8256 For the RSA certificate situation is makes no difference, but
8257 for the DSA certificate situation this fixes the "no shared cipher"
8258 problem where the OpenSSL cipher selection procedure failed because the
8259 temporary keys were not overtaken from the context and the API provided
8260 no way to reconfigure them.
8261 The new functions now let applications reconfigure the stuff and they
8262 are in detail: SSL_need_tmp_RSA, SSL_set_tmp_rsa, SSL_set_tmp_dh,
8263 SSL_set_tmp_rsa_callback and SSL_set_tmp_dh_callback. Additionally a new
8264 non-public-API function ssl_cert_instantiate() is used as a helper
8265 function and also to reduce code redundancy inside ssl_rsa.c.
8266 [Ralf S. Engelschall]
8268 *) Move s_server -dcert and -dkey options out of the undocumented feature
8269 area because they are useful for the DSA situation and should be
8270 recognized by the users.
8271 [Ralf S. Engelschall]
8273 *) Fix the cipher decision scheme for export ciphers: the export bits are
8274 *not* within SSL_MKEY_MASK or SSL_AUTH_MASK, they are within
8275 SSL_EXP_MASK. So, the original variable has to be used instead of the
8276 already masked variable.
8277 [Richard Levitte <levitte@stacken.kth.se>]
8279 *) Fix 'port' variable from `int' to `unsigned int' in crypto/bio/b_sock.c
8280 [Richard Levitte <levitte@stacken.kth.se>]
8282 *) Change type of another md_len variable in pk7_doit.c:PKCS7_dataFinal()
8283 from `int' to `unsigned int' because it's a length and initialized by
8284 EVP_DigestFinal() which expects an `unsigned int *'.
8285 [Richard Levitte <levitte@stacken.kth.se>]
8287 *) Don't hard-code path to Perl interpreter on shebang line of Configure
8288 script. Instead use the usual Shell->Perl transition trick.
8289 [Ralf S. Engelschall]
8291 *) Make `openssl x509 -noout -modulus' functional also for DSA certificates
8292 (in addition to RSA certificates) to match the behaviour of `openssl dsa
8293 -noout -modulus' as it's already the case for `openssl rsa -noout
8294 -modulus'. For RSA the -modulus is the real "modulus" while for DSA
8295 currently the public key is printed (a decision which was already done by
8296 `openssl dsa -modulus' in the past) which serves a similar purpose.
8297 Additionally the NO_RSA no longer completely removes the whole -modulus
8298 option; it now only avoids using the RSA stuff. Same applies to NO_DSA
8300 [Ralf S. Engelschall]
8302 *) Add Arne Ansper's reliable BIO - this is an encrypted, block-digested
8303 BIO. See the source (crypto/evp/bio_ok.c) for more info.
8304 [Arne Ansper <arne@ats.cyber.ee>]
8306 *) Dump the old yucky req code that tried (and failed) to allow raw OIDs
8307 to be added. Now both 'req' and 'ca' can use new objects defined in the
8311 *) Add cool BIO that does syslog (or event log on NT).
8312 [Arne Ansper <arne@ats.cyber.ee>, integrated by Ben Laurie]
8314 *) Add support for new TLS ciphersuites, TLS_RSA_EXPORT56_WITH_RC4_56_MD5,
8315 TLS_RSA_EXPORT56_WITH_RC2_CBC_56_MD5 and
8316 TLS_RSA_EXPORT56_WITH_DES_CBC_SHA, as specified in "56-bit Export Cipher
8317 Suites For TLS", draft-ietf-tls-56-bit-ciphersuites-00.txt.
8320 *) Add preliminary config info for new extension code.
8323 *) Make RSA_NO_PADDING really use no padding.
8324 [Ulf Moeller <ulf@fitug.de>]
8326 *) Generate errors when private/public key check is done.
8329 *) Overhaul for 'crl' utility. New function X509_CRL_print. Partial support
8330 for some CRL extensions and new objects added.
8333 *) Really fix the ASN1 IMPLICIT bug this time... Partial support for private
8334 key usage extension and fuller support for authority key id.
8337 *) Add OAEP encryption for the OpenSSL crypto library. OAEP is the improved
8338 padding method for RSA, which is recommended for new applications in PKCS
8339 #1 v2.0 (RFC 2437, October 1998).
8340 OAEP (Optimal Asymmetric Encryption Padding) has better theoretical
8341 foundations than the ad-hoc padding used in PKCS #1 v1.5. It is secure
8342 against Bleichbacher's attack on RSA.
8343 [Ulf Moeller <ulf@fitug.de>, reformatted, corrected and integrated by
8346 *) Updates to the new SSL compression code
8347 [Eric A. Young, (from changes to C2Net SSLeay, integrated by Mark Cox)]
8349 *) Fix so that the version number in the master secret, when passed
8350 via RSA, checks that if TLS was proposed, but we roll back to SSLv3
8351 (because the server will not accept higher), that the version number
8352 is 0x03,0x01, not 0x03,0x00
8353 [Eric A. Young, (from changes to C2Net SSLeay, integrated by Mark Cox)]
8355 *) Run extensive memory leak checks on SSL apps. Fixed *lots* of memory
8356 leaks in ssl/ relating to new X509_get_pubkey() behaviour. Also fixes
8357 in apps/ and an unrelated leak in crypto/dsa/dsa_vrf.c
8360 *) Support for RAW extensions where an arbitrary extension can be
8361 created by including its DER encoding. See apps/openssl.cnf for
8365 *) Make sure latest Perl versions don't interpret some generated C array
8366 code as Perl array code in the crypto/err/err_genc.pl script.
8367 [Lars Weber <3weber@informatik.uni-hamburg.de>]
8369 *) Modify ms/do_ms.bat to not generate assembly language makefiles since
8370 not many people have the assembler. Various Win32 compilation fixes and
8371 update to the INSTALL.W32 file with (hopefully) more accurate Win32
8375 *) Modify configure script 'Configure' to automatically create crypto/date.h
8376 file under Win32 and also build pem.h from pem.org. New script
8377 util/mkfiles.pl to create the MINFO file on environments that can't do a
8378 'make files': perl util/mkfiles.pl >MINFO should work.
8381 *) Major rework of DES function declarations, in the pursuit of correctness
8382 and purity. As a result, many evil casts evaporated, and some weirdness,
8383 too. You may find this causes warnings in your code. Zapping your evil
8384 casts will probably fix them. Mostly.
8387 *) Fix for a typo in asn1.h. Bug fix to object creation script
8388 obj_dat.pl. It considered a zero in an object definition to mean
8389 "end of object": none of the objects in objects.h have any zeros
8390 so it wasn't spotted.
8391 [Steve Henson, reported by Erwann ABALEA <eabalea@certplus.com>]
8393 *) Add support for Triple DES Cipher Block Chaining with Output Feedback
8394 Masking (CBCM). In the absence of test vectors, the best I have been able
8395 to do is check that the decrypt undoes the encrypt, so far. Send me test
8396 vectors if you have them.
8399 *) Correct calculation of key length for export ciphers (too much space was
8400 allocated for null ciphers). This has not been tested!
8403 *) Modifications to the mkdef.pl for Win32 DEF file creation. The usage
8404 message is now correct (it understands "crypto" and "ssl" on its
8405 command line). There is also now an "update" option. This will update
8406 the util/ssleay.num and util/libeay.num files with any new functions.
8408 perl util/mkdef.pl crypto ssl update
8409 it will update them.
8412 *) Overhauled the Perl interface (perl/*):
8413 - ported BN stuff to OpenSSL's different BN library
8414 - made the perl/ source tree CVS-aware
8415 - renamed the package from SSLeay to OpenSSL (the files still contain
8416 their history because I've copied them in the repository)
8417 - removed obsolete files (the test scripts will be replaced
8418 by better Test::Harness variants in the future)
8419 [Ralf S. Engelschall]
8421 *) First cut for a very conservative source tree cleanup:
8422 1. merge various obsolete readme texts into doc/ssleay.txt
8423 where we collect the old documents and readme texts.
8424 2. remove the first part of files where I'm already sure that we no
8425 longer need them because of three reasons: either they are just temporary
8426 files which were left by Eric or they are preserved original files where
8427 I've verified that the diff is also available in the CVS via "cvs diff
8428 -rSSLeay_0_8_1b" or they were renamed (as it was definitely the case for
8429 the crypto/md/ stuff).
8430 [Ralf S. Engelschall]
8432 *) More extension code. Incomplete support for subject and issuer alt
8433 name, issuer and authority key id. Change the i2v function parameters
8434 and add an extra 'crl' parameter in the X509V3_CTX structure: guess
8435 what that's for :-) Fix to ASN1 macro which messed up
8436 IMPLICIT tag and add f_enum.c which adds a2i, i2a for ENUMERATED.
8439 *) Preliminary support for ENUMERATED type. This is largely copied from the
8443 *) Add new function, EVP_MD_CTX_copy() to replace frequent use of memcpy.
8444 [Eric A. Young, (from changes to C2Net SSLeay, integrated by Mark Cox)]
8446 *) Make sure `make rehash' target really finds the `openssl' program.
8447 [Ralf S. Engelschall, Matthias Loepfe <Matthias.Loepfe@adnovum.ch>]
8449 *) Squeeze another 7% of speed out of MD5 assembler, at least on a P2. I'd
8450 like to hear about it if this slows down other processors.
8453 *) Add CygWin32 platform information to Configure script.
8454 [Alan Batie <batie@aahz.jf.intel.com>]
8456 *) Fixed ms/32all.bat script: `no_asm' -> `no-asm'
8457 [Rainer W. Gerling <gerling@mpg-gv.mpg.de>]
8459 *) New program nseq to manipulate netscape certificate sequences
8462 *) Modify crl2pkcs7 so it supports multiple -certfile arguments. Fix a
8466 *) Fixes to BN code. Previously the default was to define BN_RECURSION
8467 but the BN code had some problems that would cause failures when
8468 doing certificate verification and some other functions.
8469 [Eric A. Young, (from changes to C2Net SSLeay, integrated by Mark Cox)]
8471 *) Add ASN1 and PEM code to support netscape certificate sequences.
8474 *) Add ASN1 and PEM code to support netscape certificate sequences.
8477 *) Add several PKIX and private extended key usage OIDs.
8480 *) Modify the 'ca' program to handle the new extension code. Modify
8481 openssl.cnf for new extension format, add comments.
8484 *) More X509 V3 changes. Fix typo in v3_bitstr.c. Add support to 'req'
8485 and add a sample to openssl.cnf so req -x509 now adds appropriate
8489 *) Continued X509 V3 changes. Add to other makefiles, integrate with the
8490 error code, add initial support to X509_print() and x509 application.
8493 *) Takes a deep breath and start addding X509 V3 extension support code. Add
8494 files in crypto/x509v3. Move original stuff to crypto/x509v3/old. All this
8495 stuff is currently isolated and isn't even compiled yet.
8498 *) Continuing patches for GeneralizedTime. Fix up certificate and CRL
8499 ASN1 to use ASN1_TIME and modify print routines to use ASN1_TIME_print.
8500 Removed the versions check from X509 routines when loading extensions:
8501 this allows certain broken certificates that don't set the version
8502 properly to be processed.
8505 *) Deal with irritating shit to do with dependencies, in YAAHW (Yet Another
8506 Ad Hoc Way) - Makefile.ssls now all contain local dependencies, which
8507 can still be regenerated with "make depend".
8510 *) Spelling mistake in C version of CAST-128.
8511 [Ben Laurie, reported by Jeremy Hylton <jeremy@cnri.reston.va.us>]
8513 *) Changes to the error generation code. The perl script err-code.pl
8514 now reads in the old error codes and retains the old numbers, only
8515 adding new ones if necessary. It also only changes the .err files if new
8516 codes are added. The makefiles have been modified to only insert errors
8517 when needed (to avoid needlessly modifying header files). This is done
8518 by only inserting errors if the .err file is newer than the auto generated
8519 C file. To rebuild all the error codes from scratch (the old behaviour)
8520 either modify crypto/Makefile.ssl to pass the -regen flag to err_code.pl
8521 or delete all the .err files.
8524 *) CAST-128 was incorrectly implemented for short keys. The C version has
8525 been fixed, but is untested. The assembler versions are also fixed, but
8526 new assembler HAS NOT BEEN GENERATED FOR WIN32 - the Makefile needs fixing
8527 to regenerate it if needed.
8528 [Ben Laurie, reported (with fix for C version) by Jun-ichiro itojun
8529 Hagino <itojun@kame.net>]
8531 *) File was opened incorrectly in randfile.c.
8532 [Ulf Möller <ulf@fitug.de>]
8534 *) Beginning of support for GeneralizedTime. d2i, i2d, check and print
8535 functions. Also ASN1_TIME suite which is a CHOICE of UTCTime or
8536 GeneralizedTime. ASN1_TIME is the proper type used in certificates et
8537 al: it's just almost always a UTCTime. Note this patch adds new error
8538 codes so do a "make errors" if there are problems.
8541 *) Correct Linux 1 recognition in config.
8542 [Ulf Möller <ulf@fitug.de>]
8544 *) Remove pointless MD5 hash when using DSA keys in ca.
8545 [Anonymous <nobody@replay.com>]
8547 *) Generate an error if given an empty string as a cert directory. Also
8548 generate an error if handed NULL (previously returned 0 to indicate an
8549 error, but didn't set one).
8550 [Ben Laurie, reported by Anonymous <nobody@replay.com>]
8552 *) Add prototypes to SSL methods. Make SSL_write's buffer const, at last.
8555 *) Fix the dummy function BN_ref_mod_exp() in rsaref.c to have the correct
8556 parameters. This was causing a warning which killed off the Win32 compile.
8559 *) Remove C++ style comments from crypto/bn/bn_local.h.
8560 [Neil Costigan <neil.costigan@celocom.com>]
8562 *) The function OBJ_txt2nid was broken. It was supposed to return a nid
8563 based on a text string, looking up short and long names and finally
8564 "dot" format. The "dot" format stuff didn't work. Added new function
8565 OBJ_txt2obj to do the same but return an ASN1_OBJECT and rewrote
8566 OBJ_txt2nid to use it. OBJ_txt2obj can also return objects even if the
8567 OID is not part of the table.
8570 *) Add prototypes to X509 lookup/verify methods, fixing a bug in
8571 X509_LOOKUP_by_alias().
8574 *) Sort openssl functions by name.
8577 *) Get the gendsa program working (hopefully) and add it to app list. Remove
8578 encryption from sample DSA keys (in case anyone is interested the password
8582 *) Make _all_ *_free functions accept a NULL pointer.
8583 [Frans Heymans <fheymans@isaserver.be>]
8585 *) If a DH key is generated in s3_srvr.c, don't blow it by trying to use
8587 [Anonymous <nobody@replay.com>]
8589 *) s_server should send the CAfile as acceptable CAs, not its own cert.
8590 [Bodo Moeller <3moeller@informatik.uni-hamburg.de>]
8592 *) Don't blow it for numeric -newkey arguments to apps/req.
8593 [Bodo Moeller <3moeller@informatik.uni-hamburg.de>]
8595 *) Temp key "for export" tests were wrong in s3_srvr.c.
8596 [Anonymous <nobody@replay.com>]
8598 *) Add prototype for temp key callback functions
8599 SSL_CTX_set_tmp_{rsa,dh}_callback().
8602 *) Make DH_free() tolerate being passed a NULL pointer (like RSA_free() and
8603 DSA_free()). Make X509_PUBKEY_set() check for errors in d2i_PublicKey().
8606 *) X509_name_add_entry() freed the wrong thing after an error.
8607 [Arne Ansper <arne@ats.cyber.ee>]
8609 *) rsa_eay.c would attempt to free a NULL context.
8610 [Arne Ansper <arne@ats.cyber.ee>]
8612 *) BIO_s_socket() had a broken should_retry() on Windoze.
8613 [Arne Ansper <arne@ats.cyber.ee>]
8615 *) BIO_f_buffer() didn't pass on BIO_CTRL_FLUSH.
8616 [Arne Ansper <arne@ats.cyber.ee>]
8618 *) Make sure the already existing X509_STORE->depth variable is initialized
8619 in X509_STORE_new(), but document the fact that this variable is still
8620 unused in the certificate verification process.
8621 [Ralf S. Engelschall]
8623 *) Fix the various library and apps files to free up pkeys obtained from
8624 X509_PUBKEY_get() et al. Also allow x509.c to handle netscape extensions.
8627 *) Fix reference counting in X509_PUBKEY_get(). This makes
8628 demos/maurice/example2.c work, amongst others, probably.
8629 [Steve Henson and Ben Laurie]
8631 *) First cut of a cleanup for apps/. First the `ssleay' program is now named
8632 `openssl' and second, the shortcut symlinks for the `openssl <command>'
8633 are no longer created. This way we have a single and consistent command
8634 line interface `openssl <command>', similar to `cvs <command>'.
8635 [Ralf S. Engelschall, Paul Sutton and Ben Laurie]
8637 *) ca.c: move test for DSA keys inside #ifndef NO_DSA. Make pubkey
8638 BIT STRING wrapper always have zero unused bits.
8641 *) Add CA.pl, perl version of CA.sh, add extended key usage OID.
8644 *) Make the top-level INSTALL documentation easier to understand.
8647 *) Makefiles updated to exit if an error occurs in a sub-directory
8648 make (including if user presses ^C) [Paul Sutton]
8650 *) Make Montgomery context stuff explicit in RSA data structure.
8653 *) Fix build order of pem and err to allow for generated pem.h.
8656 *) Fix renumbering bug in X509_NAME_delete_entry().
8659 *) Enhanced the err-ins.pl script so it makes the error library number
8660 global and can add a library name. This is needed for external ASN1 and
8661 other error libraries.
8664 *) Fixed sk_insert which never worked properly.
8667 *) Fix ASN1 macros so they can handle indefinite length construted
8668 EXPLICIT tags. Some non standard certificates use these: they can now
8672 *) Merged the various old/obsolete SSLeay documentation files (doc/xxx.doc)
8673 into a single doc/ssleay.txt bundle. This way the information is still
8674 preserved but no longer messes up this directory. Now it's new room for
8675 the new set of documenation files.
8676 [Ralf S. Engelschall]
8678 *) SETs were incorrectly DER encoded. This was a major pain, because they
8679 shared code with SEQUENCEs, which aren't coded the same. This means that
8680 almost everything to do with SETs or SEQUENCEs has either changed name or
8681 number of arguments.
8682 [Ben Laurie, based on a partial fix by GP Jayan <gp@nsj.co.jp>]
8684 *) Fix test data to work with the above.
8687 *) Fix the RSA header declarations that hid a bug I fixed in 0.9.0b but
8688 was already fixed by Eric for 0.9.1 it seems.
8689 [Ben Laurie - pointed out by Ulf Möller <ulf@fitug.de>]
8691 *) Autodetect FreeBSD3.
8694 *) Fix various bugs in Configure. This affects the following platforms:
8698 unixware-2.0-pentium
8702 *) Eliminate generated files from CVS. Reorder tests to regenerate files
8703 before they are needed.
8706 *) Generate Makefile.ssl from Makefile.org (to keep CVS happy).
8710 Changes between 0.9.1b and 0.9.1c [23-Dec-1998]
8712 *) Added OPENSSL_VERSION_NUMBER to crypto/crypto.h and
8713 changed SSLeay to OpenSSL in version strings.
8714 [Ralf S. Engelschall]
8716 *) Some fixups to the top-level documents.
8719 *) Fixed the nasty bug where rsaref.h was not found under compile-time
8720 because the symlink to include/ was missing.
8721 [Ralf S. Engelschall]
8723 *) Incorporated the popular no-RSA/DSA-only patches
8724 which allow to compile a RSA-free SSLeay.
8725 [Andrew Cooke / Interrader Ldt., Ralf S. Engelschall]
8727 *) Fixed nasty rehash problem under `make -f Makefile.ssl links'
8728 when "ssleay" is still not found.
8729 [Ralf S. Engelschall]
8731 *) Added more platforms to Configure: Cray T3E, HPUX 11,
8732 [Ralf S. Engelschall, Beckmann <beckman@acl.lanl.gov>]
8734 *) Updated the README file.
8735 [Ralf S. Engelschall]
8737 *) Added various .cvsignore files in the CVS repository subdirs
8738 to make a "cvs update" really silent.
8739 [Ralf S. Engelschall]
8741 *) Recompiled the error-definition header files and added
8742 missing symbols to the Win32 linker tables.
8743 [Ralf S. Engelschall]
8745 *) Cleaned up the top-level documents;
8746 o new files: CHANGES and LICENSE
8747 o merged VERSION, HISTORY* and README* files a CHANGES.SSLeay
8748 o merged COPYRIGHT into LICENSE
8749 o removed obsolete TODO file
8750 o renamed MICROSOFT to INSTALL.W32
8751 [Ralf S. Engelschall]
8753 *) Removed dummy files from the 0.9.1b source tree:
8754 crypto/asn1/x crypto/bio/cd crypto/bio/fg crypto/bio/grep crypto/bio/vi
8755 crypto/bn/asm/......add.c crypto/bn/asm/a.out crypto/dsa/f crypto/md5/f
8756 crypto/pem/gmon.out crypto/perlasm/f crypto/pkcs7/build crypto/rsa/f
8757 crypto/sha/asm/f crypto/threads/f ms/zzz ssl/f ssl/f.mak test/f
8758 util/f.mak util/pl/f util/pl/f.mak crypto/bf/bf_locl.old apps/f
8759 [Ralf S. Engelschall]
8761 *) Added various platform portability fixes.
8764 *) The Genesis of the OpenSSL rpject:
8765 We start with the latest (unreleased) SSLeay version 0.9.1b which Eric A.
8766 Young and Tim J. Hudson created while they were working for C2Net until
8768 [The OpenSSL Project]
8771 Changes between 0.9.0b and 0.9.1b [not released]
8773 *) Updated a few CA certificates under certs/
8776 *) Changed some BIGNUM api stuff.
8779 *) Various platform ports: OpenBSD, Ultrix, IRIX 64bit, NetBSD,
8780 DGUX x86, Linux Alpha, etc.
8783 *) New COMP library [crypto/comp/] for SSL Record Layer Compression:
8784 RLE (dummy implemented) and ZLIB (really implemented when ZLIB is
8788 *) Add -strparse option to asn1pars program which parses nested
8790 [Dr Stephen Henson <shenson@bigfoot.com>]
8792 *) Added "oid_file" to ssleay.cnf for "ca" and "req" programs.
8795 *) DSA fix for "ca" program.
8798 *) Added "-genkey" option to "dsaparam" program.
8801 *) Added RIPE MD160 (rmd160) message digest.
8804 *) Added -a (all) option to "ssleay version" command.
8807 *) Added PLATFORM define which is the id given to Configure.
8810 *) Added MemCheck_XXXX functions to crypto/mem.c for memory checking.
8813 *) Extended the ASN.1 parser routines.
8816 *) Extended BIO routines to support REUSEADDR, seek, tell, etc.
8819 *) Added a BN_CTX to the BN library.
8822 *) Fixed the weak key values in DES library
8825 *) Changed API in EVP library for cipher aliases.
8828 *) Added support for RC2/64bit cipher.
8831 *) Converted the lhash library to the crypto/mem.c functions.
8834 *) Added more recognized ASN.1 object ids.
8837 *) Added more RSA padding checks for SSL/TLS.
8840 *) Added BIO proxy/filter functionality.
8843 *) Added extra_certs to SSL_CTX which can be used
8844 send extra CA certificates to the client in the CA cert chain sending
8845 process. It can be configured with SSL_CTX_add_extra_chain_cert().
8848 *) Now Fortezza is denied in the authentication phase because
8849 this is key exchange mechanism is not supported by SSLeay at all.
8852 *) Additional PKCS1 checks.
8855 *) Support the string "TLSv1" for all TLS v1 ciphers.
8858 *) Added function SSL_get_ex_data_X509_STORE_CTX_idx() which gives the
8859 ex_data index of the SSL context in the X509_STORE_CTX ex_data.
8862 *) Fixed a few memory leaks.
8865 *) Fixed various code and comment typos.
8868 *) A minor bug in ssl/s3_clnt.c where there would always be 4 0
8869 bytes sent in the client random.
8870 [Edward Bishop <ebishop@spyglass.com>]
projects / openssl.git / blob