5 Changes between 0.9.8f and 0.9.9 [xx XXX xxxx]
7 *) ARMv4 assembler pack. ARMv4 refers to v4 and later ISA, not CPU
11 *) Implement certificate status request TLS extension defined in RFC3546.
12 A client can set the appropriate parameters and receive the encoded
13 OCSP response via a callback. A server can query the supplied parameters
14 and set the encoded OCSP response in the callback. Add simplified examples
15 to s_client and s_server.
18 *) Implement Opaque PRF Input TLS extension as specified in
19 draft-rescorla-tls-opaque-prf-input-00.txt. Since this is not an
20 official specification yet and no extension type assignment by
21 IANA exists, this extension (for now) will have to be explicitly
22 enabled when building OpenSSL by providing the extension number
23 to use. For example, specify an option
25 -DTLSEXT_TYPE_opaque_prf_input=0x9527
27 to the "config" or "Configure" script to enable the extension,
28 assuming extension number 0x9527 (which is a completely arbitrary
29 and unofficial assignment based on the MD5 hash of the Internet
30 Draft). Note that by doing so, you potentially lose
31 interoperability with other TLS implementations since these might
32 be using the same extension number for other purposes.
34 SSL_set_tlsext_opaque_prf_input(ssl, src, len) is used to set the
35 opaque PRF input value to use in the handshake. This will create
36 an interal copy of the length-'len' string at 'src', and will
37 return non-zero for success.
39 To get more control and flexibility, provide a callback function
42 SSL_CTX_set_tlsext_opaque_prf_input_callback(ctx, cb)
43 SSL_CTX_set_tlsext_opaque_prf_input_callback_arg(ctx, arg)
47 int (*cb)(SSL *, void *peerinput, size_t len, void *arg);
50 Callback function 'cb' will be called in handshakes, and is
51 expected to use SSL_set_tlsext_opaque_prf_input() as appropriate.
52 Argument 'arg' is for application purposes (the value as given to
53 SSL_CTX_set_tlsext_opaque_prf_input_callback_arg() will directly
54 be provided to the callback function). The callback function
55 has to return non-zero to report success: usually 1 to use opaque
56 PRF input just if possible, or 2 to enforce use of the opaque PRF
57 input. In the latter case, the library will abort the handshake
58 if opaque PRF input is not successfully negotiated.
60 Arguments 'peerinput' and 'len' given to the callback function
61 will always be NULL and 0 in the case of a client. A server will
62 see the client's opaque PRF input through these variables if
63 available (NULL and 0 otherwise). Note that if the server
64 provides an opaque PRF input, the length must be the same as the
65 length of the client's opaque PRF input.
67 Note that the callback function will only be called when creating
68 a new session (session resumption can resume whatever was
69 previously negotiated), and will not be called in SSL 2.0
70 handshakes; thus, SSL_CTX_set_options(ctx, SSL_OP_NO_SSLv2) or
71 SSL_set_options(ssl, SSL_OP_NO_SSLv2) is especially recommended
72 for applications that need to enforce opaque PRF input.
76 *) Update ssl code to support digests other than SHA1+MD5 for handshake
79 [Victor B. Wagner <vitus@cryptocom.ru>]
81 *) Add RFC4507 support to OpenSSL. This includes the corrections in
82 RFC4507bis. The encrypted ticket format is an encrypted encoded
83 SSL_SESSION structure, that way new session features are automatically
86 If a client application caches session in an SSL_SESSION structure
87 support is transparent because tickets are now stored in the encoded
90 The SSL_CTX structure automatically generates keys for ticket
91 protection in servers so again support should be possible
92 with no application modification.
94 If a client or server wishes to disable RFC4507 support then the option
95 SSL_OP_NO_TICKET can be set.
97 Add a TLS extension debugging callback to allow the contents of any client
98 or server extensions to be examined.
100 This work was sponsored by Google.
103 *) Final changes to avoid use of pointer pointer casts in OpenSSL.
104 OpenSSL should now compile cleanly on gcc 4.2
105 [Peter Hartley <pdh@utter.chaos.org.uk>, Steve Henson]
107 *) Update SSL library to use new EVP_PKEY MAC API. Include generic MAC
108 support including streaming MAC support: this is required for GOST
110 [Victor B. Wagner <vitus@cryptocom.ru>, Steve Henson]
112 *) Add option -stream to use PKCS#7 streaming in smime utility. New
113 function i2d_PKCS7_bio_stream() and PEM_write_PKCS7_bio_stream()
114 to output in BER and PEM format.
117 *) Experimental support for use of HMAC via EVP_PKEY interface. This
118 allows HMAC to be handled via the EVP_DigestSign*() interface. The
119 EVP_PKEY "key" in this case is the HMAC key, potentially allowing
120 ENGINE support for HMAC keys which are unextractable. New -mac and
121 -macopt options to dgst utility.
124 *) New option -sigopt to dgst utility. Update dgst to use
125 EVP_Digest{Sign,Verify}*. These two changes make it possible to use
126 alternative signing paramaters such as X9.31 or PSS in the dgst
130 *) Change ssl_cipher_apply_rule(), the internal function that does
131 the work each time a ciphersuite string requests enabling
132 ("foo+bar"), moving ("+foo+bar"), disabling ("-foo+bar", or
133 removing ("!foo+bar") a class of ciphersuites: Now it maintains
134 the order of disabled ciphersuites such that those ciphersuites
135 that most recently went from enabled to disabled not only stay
136 in order with respect to each other, but also have higher priority
137 than other disabled ciphersuites the next time ciphersuites are
140 This means that you can now say, e.g., "PSK:-PSK:HIGH" to enable
141 the same ciphersuites as with "HIGH" alone, but in a specific
142 order where the PSK ciphersuites come first (since they are the
143 most recently disabled ciphersuites when "HIGH" is parsed).
145 Also, change ssl_create_cipher_list() (using this new
146 funcionality) such that between otherwise identical
147 cihpersuites, ephemeral ECDH is preferred over ephemeral DH in
151 *) Change ssl_create_cipher_list() so that it automatically
152 arranges the ciphersuites in reasonable order before starting
153 to process the rule string. Thus, the definition for "DEFAULT"
154 (SSL_DEFAULT_CIPHER_LIST) now is just "ALL:!aNULL:!eNULL", but
155 remains equivalent to "AES:ALL:!aNULL:!eNULL:+aECDH:+kRSA:+RC4:@STRENGTH".
156 This makes it much easier to arrive at a reasonable default order
157 in applications for which anonymous ciphers are OK (meaning
158 that you can't actually use DEFAULT).
159 [Bodo Moeller; suggested by Victor Duchovni]
161 *) Split the SSL/TLS algorithm mask (as used for ciphersuite string
162 processing) into multiple integers instead of setting
163 "SSL_MKEY_MASK" bits, "SSL_AUTH_MASK" bits, "SSL_ENC_MASK",
164 "SSL_MAC_MASK", and "SSL_SSL_MASK" bits all in a single integer.
165 (These masks as well as the individual bit definitions are hidden
166 away into the non-exported interface ssl/ssl_locl.h, so this
167 change to the definition of the SSL_CIPHER structure shouldn't
168 affect applications.) This give us more bits for each of these
169 categories, so there is no longer a need to coagulate AES128 and
170 AES256 into a single algorithm bit, and to coagulate Camellia128
171 and Camellia256 into a single algorithm bit, which has led to all
174 Thus, among other things, the kludge introduced in 0.9.7m and
175 0.9.8e for masking out AES256 independently of AES128 or masking
176 out Camellia256 independently of AES256 is not needed here in 0.9.9.
178 With the change, we also introduce new ciphersuite aliases that
179 so far were missing: "AES128", "AES256", "CAMELLIA128", and
183 *) Add support for dsa-with-SHA224 and dsa-with-SHA256.
184 Use the leftmost N bytes of the signature input if the input is
185 larger than the prime q (with N being the size in bytes of q).
188 *) Very *very* experimental PKCS#7 streaming encoder support. Nothing uses
189 it yet and it is largely untested.
192 *) Add support for the ecdsa-with-SHA224/256/384/512 signature types.
195 *) Initial incomplete changes to avoid need for function casts in OpenSSL
196 some compilers (gcc 4.2 and later) reject their use. Safestack is
197 reimplemented. Update ASN1 to avoid use of legacy functions.
200 *) Win32/64 targets are linked with Winsock2.
203 *) Add an X509_CRL_METHOD structure to allow CRL processing to be redirected
204 to external functions. This can be used to increase CRL handling
205 efficiency especially when CRLs are very large by (for example) storing
206 the CRL revoked certificates in a database.
209 *) Overhaul of by_dir code. Add support for dynamic loading of CRLs so
210 new CRLs added to a directory can be used. New command line option
211 -verify_return_error to s_client and s_server. This causes real errors
212 to be returned by the verify callback instead of carrying on no matter
213 what. This reflects the way a "real world" verify callback would behave.
216 *) GOST engine, supporting several GOST algorithms and public key formats.
217 Kindly donated by Cryptocom.
220 *) Partial support for Issuing Distribution Point CRL extension. CRLs
221 partitioned by DP are handled but no indirect CRL or reason partitioning
222 (yet). Complete overhaul of CRL handling: now the most suitable CRL is
223 selected via a scoring technique which handles IDP and AKID in CRLs.
226 *) New X509_STORE_CTX callbacks lookup_crls() and lookup_certs() which
227 will ultimately be used for all verify operations: this will remove the
228 X509_STORE dependency on certificate verification and allow alternative
229 lookup methods. X509_STORE based implementations of these two callbacks.
232 *) Allow multiple CRLs to exist in an X509_STORE with matching issuer names.
233 Modify get_crl() to find a valid (unexpired) CRL if possible.
236 *) New function X509_CRL_match() to check if two CRLs are identical. Normally
237 this would be called X509_CRL_cmp() but that name is already used by
238 a function that just compares CRL issuer names. Cache several CRL
239 extensions in X509_CRL structure and cache CRLDP in X509.
242 *) Store a "canonical" representation of X509_NAME structure (ASN1 Name)
243 this maps equivalent X509_NAME structures into a consistent structure.
244 Name comparison can then be performed rapidly using memcmp().
247 *) Non-blocking OCSP request processing. Add -timeout option to ocsp
251 *) Allow digests to supply their own micalg string for S/MIME type using
252 the ctrl EVP_MD_CTRL_MICALG.
255 *) During PKCS7 signing pass the PKCS7 SignerInfo structure to the
256 EVP_PKEY_METHOD before and after signing via the EVP_PKEY_CTRL_PKCS7_SIGN
257 ctrl. It can then customise the structure before and/or after signing
261 *) New function OBJ_add_sigid() to allow application defined signature OIDs
262 to be added to OpenSSLs internal tables. New function OBJ_sigid_free()
263 to free up any added signature OIDs.
266 *) New functions EVP_CIPHER_do_all(), EVP_CIPHER_do_all_sorted(),
267 EVP_MD_do_all() and EVP_MD_do_all_sorted() to enumerate internal
268 digest and cipher tables. New options added to openssl utility:
269 list-message-digest-algorithms and list-cipher-algorithms.
272 *) In addition to the numerical (unsigned long) thread ID, provide
273 for a pointer (void *) thread ID. This helps accomodate systems
274 that do not provide an unsigned long thread ID. OpenSSL assumes
275 it is in the same thread iff both the numerical and the pointer
276 thread ID agree; so applications are just required to define one
277 of them appropriately (e.g., by using a pointer to a per-thread
278 memory object malloc()ed by the application for the pointer-type
279 thread ID). Exactly analoguous to the existing functions
281 void CRYPTO_set_id_callback(unsigned long (*func)(void));
282 unsigned long (*CRYPTO_get_id_callback(void))(void);
283 unsigned long CRYPTO_thread_id(void);
285 we now have additional functions
287 void CRYPTO_set_idptr_callback(void *(*func)(void));
288 void *(*CRYPTO_get_idptr_callback(void))(void);
289 void *CRYPTO_thread_idptr(void);
291 also in <openssl/crypto.h>. The default value for
292 CRYPTO_thread_idptr() if the application has not provided its own
296 *) Change the array representation of binary polynomials: the list
297 of degrees of non-zero coefficients is now terminated with -1.
298 Previously it was terminated with 0, which was also part of the
299 value; thus, the array representation was not applicable to
300 polynomials where t^0 has coefficient zero. This change makes
301 the array representation useful in a more general context.
304 *) Various modifications and fixes to SSL/TLS cipher string
305 handling. For ECC, the code now distinguishes between fixed ECDH
306 with RSA certificates on the one hand and with ECDSA certificates
307 on the other hand, since these are separate ciphersuites. The
308 unused code for Fortezza ciphersuites has been removed.
310 For consistency with EDH, ephemeral ECDH is now called "EECDH"
311 (not "ECDHE"). For consistency with the code for DH
312 certificates, use of ECDH certificates is now considered ECDH
313 authentication, not RSA or ECDSA authentication (the latter is
314 merely the CA's signing algorithm and not actively used in the
317 The temporary ciphersuite alias "ECCdraft" is no longer
318 available, and ECC ciphersuites are no longer excluded from "ALL"
319 and "DEFAULT". The following aliases now exist for RFC 4492
320 ciphersuites, most of these by analogy with the DH case:
322 kECDHr - ECDH cert, signed with RSA
323 kECDHe - ECDH cert, signed with ECDSA
324 kECDH - ECDH cert (signed with either RSA or ECDSA)
325 kEECDH - ephemeral ECDH
326 ECDH - ECDH cert or ephemeral ECDH
332 AECDH - anonymous ECDH
333 EECDH - non-anonymous ephemeral ECDH (equivalent to "kEECDH:-AECDH")
337 *) Add additional S/MIME capabilities for AES and GOST ciphers if supported.
338 Use correct micalg parameters depending on digest(s) in signed message.
341 *) Add engine support for EVP_PKEY_ASN1_METHOD. Add functions to process
342 an ENGINE asn1 method. Support ENGINE lookups in the ASN1 code.
345 *) Initial engine support for EVP_PKEY_METHOD. New functions to permit
346 an engine to register a method. Add ENGINE lookups for methods and
347 functional reference processing.
350 *) New functions EVP_Digest{Sign,Verify)*. These are enchance versions of
351 EVP_{Sign,Verify}* which allow an application to customise the signature
355 *) New -resign option to smime utility. This adds one or more signers
356 to an existing PKCS#7 signedData structure. Also -md option to use an
357 alternative message digest algorithm for signing.
360 *) Tidy up PKCS#7 routines and add new functions to make it easier to
361 create PKCS7 structures containing multiple signers. Update smime
362 application to support multiple signers.
365 *) New -macalg option to pkcs12 utility to allow setting of an alternative
369 *) Initial support for PKCS#5 v2.0 PRFs other than default SHA1 HMAC.
370 Reorganize PBE internals to lookup from a static table using NIDs,
371 add support for HMAC PBE OID translation. Add a EVP_CIPHER ctrl:
372 EVP_CTRL_PBE_PRF_NID this allows a cipher to specify an alternative
373 PRF which will be automatically used with PBES2.
376 *) Replace the algorithm specific calls to generate keys in "req" with the
380 *) Update PKCS#7 enveloped data routines to use new API. This is now
381 supported by any public key method supporting the encrypt operation. A
382 ctrl is added to allow the public key algorithm to examine or modify
383 the PKCS#7 RecipientInfo structure if it needs to: for RSA this is
387 *) Add a ctrl to asn1 method to allow a public key algorithm to express
388 a default digest type to use. In most cases this will be SHA1 but some
389 algorithms (such as GOST) need to specify an alternative digest. The
390 return value indicates how strong the prefernce is 1 means optional and
391 2 is mandatory (that is it is the only supported type). Modify
392 ASN1_item_sign() to accept a NULL digest argument to indicate it should
393 use the default md. Update openssl utilities to use the default digest
394 type for signing if it is not explicitly indicated.
397 *) Use OID cross reference table in ASN1_sign() and ASN1_verify(). New
398 EVP_MD flag EVP_MD_FLAG_PKEY_METHOD_SIGNATURE. This uses the relevant
399 signing method from the key type. This effectively removes the link
400 between digests and public key types.
403 *) Add an OID cross reference table and utility functions. Its purpose is to
404 translate between signature OIDs such as SHA1WithrsaEncryption and SHA1,
405 rsaEncryption. This will allow some of the algorithm specific hackery
406 needed to use the correct OID to be removed.
409 *) Remove algorithm specific dependencies when setting PKCS7_SIGNER_INFO
410 structures for PKCS7_sign(). They are now set up by the relevant public
414 *) Add provisional EC pkey method with support for ECDSA and ECDH.
417 *) Add support for key derivation (agreement) in the API, DH method and
421 *) Add DSA pkey method and DH pkey methods, extend DH ASN1 method to support
422 public and private key formats. As a side effect these add additional
423 command line functionality not previously available: DSA signatures can be
424 generated and verified using pkeyutl and DH key support and generation in
429 [Oliver Tappe <zooey@hirschkaefer.de>]
431 *) New make target "install_html_docs" installs HTML renditions of the
433 [Oliver Tappe <zooey@hirschkaefer.de>]
435 *) New utility "genpkey" this is analagous to "genrsa" etc except it can
436 generate keys for any algorithm. Extend and update EVP_PKEY_METHOD to
437 support key and parameter generation and add initial key generation
438 functionality for RSA.
441 *) Add functions for main EVP_PKEY_method operations. The undocumented
442 functions EVP_PKEY_{encrypt,decrypt} have been renamed to
443 EVP_PKEY_{encrypt,decrypt}_old.
446 *) Initial definitions for EVP_PKEY_METHOD. This will be a high level public
447 key API, doesn't do much yet.
450 *) New function EVP_PKEY_asn1_get0_info() to retrieve information about
451 public key algorithms. New option to openssl utility:
452 "list-public-key-algorithms" to print out info.
455 *) Implement the Supported Elliptic Curves Extension for
456 ECC ciphersuites from draft-ietf-tls-ecc-12.txt.
459 *) Don't free up OIDs in OBJ_cleanup() if they are in use by EVP_MD or
460 EVP_CIPHER structures to avoid later problems in EVP_cleanup().
463 *) New utilities pkey and pkeyparam. These are similar to algorithm specific
464 utilities such as rsa, dsa, dsaparam etc except they process any key
468 *) Transfer public key printing routines to EVP_PKEY_ASN1_METHOD. New
469 functions EVP_PKEY_print_public(), EVP_PKEY_print_private(),
470 EVP_PKEY_print_param() to print public key data from an EVP_PKEY
474 *) Initial support for pluggable public key ASN1.
475 De-spaghettify the public key ASN1 handling. Move public and private
476 key ASN1 handling to a new EVP_PKEY_ASN1_METHOD structure. Relocate
477 algorithm specific handling to a single module within the relevant
478 algorithm directory. Add functions to allow (near) opaque processing
479 of public and private key structures.
482 *) Implement the Supported Point Formats Extension for
483 ECC ciphersuites from draft-ietf-tls-ecc-12.txt.
486 *) Add initial support for RFC 4279 PSK TLS ciphersuites. Add members
487 for the psk identity [hint] and the psk callback functions to the
488 SSL_SESSION, SSL and SSL_CTX structure.
491 PSK-RC4-SHA, PSK-3DES-EDE-CBC-SHA, PSK-AES128-CBC-SHA,
495 SSL_CTX_use_psk_identity_hint
496 SSL_get_psk_identity_hint
498 SSL_use_psk_identity_hint
500 [Mika Kousa and Pasi Eronen of Nokia Corporation]
502 *) Add RFC 3161 compliant time stamp request creation, response generation
503 and response verification functionality.
504 [Zoltán Glózik <zglozik@opentsa.org>, The OpenTSA Project]
506 *) Add initial support for TLS extensions, specifically for the server_name
507 extension so far. The SSL_SESSION, SSL_CTX, and SSL data structures now
508 have new members for a host name. The SSL data structure has an
509 additional member SSL_CTX *initial_ctx so that new sessions can be
510 stored in that context to allow for session resumption, even after the
511 SSL has been switched to a new SSL_CTX in reaction to a client's
512 server_name extension.
514 New functions (subject to change):
517 SSL_get_servername_type()
520 New CTRL codes and macros (subject to change):
522 SSL_CTRL_SET_TLSEXT_SERVERNAME_CB
523 - SSL_CTX_set_tlsext_servername_callback()
524 SSL_CTRL_SET_TLSEXT_SERVERNAME_ARG
525 - SSL_CTX_set_tlsext_servername_arg()
526 SSL_CTRL_SET_TLSEXT_HOSTNAME - SSL_set_tlsext_host_name()
528 openssl s_client has a new '-servername ...' option.
530 openssl s_server has new options '-servername_host ...', '-cert2 ...',
531 '-key2 ...', '-servername_fatal' (subject to change). This allows
532 testing the HostName extension for a specific single host name ('-cert'
533 and '-key' remain fallbacks for handshakes without HostName
534 negotiation). If the unrecogninzed_name alert has to be sent, this by
535 default is a warning; it becomes fatal with the '-servername_fatal'
538 [Peter Sylvester, Remy Allais, Christophe Renou]
540 *) Whirlpool hash implementation is added.
543 *) BIGNUM code on 64-bit SPARCv9 targets is switched from bn(64,64) to
544 bn(64,32). Because of instruction set limitations it doesn't have
545 any negative impact on performance. This was done mostly in order
546 to make it possible to share assembler modules, such as bn_mul_mont
547 implementations, between 32- and 64-bit builds without hassle.
550 *) Move code previously exiled into file crypto/ec/ec2_smpt.c
551 to ec2_smpl.c, and no longer require the OPENSSL_EC_BIN_PT_COMP
555 *) New candidate for BIGNUM assembler implementation, bn_mul_mont,
556 dedicated Montgomery multiplication procedure, is introduced.
557 BN_MONT_CTX is modified to allow bn_mul_mont to reach for higher
558 "64-bit" performance on certain 32-bit targets.
561 *) New option SSL_OP_NO_COMP to disable use of compression selectively
562 in SSL structures. New SSL ctrl to set maximum send fragment size.
563 Save memory by seeting the I/O buffer sizes dynamically instead of
564 using the maximum available value.
567 *) New option -V for 'openssl ciphers'. This prints the ciphersuite code
568 in addition to the text details.
571 *) Very, very preliminary EXPERIMENTAL support for printing of general
572 ASN1 structures. This currently produces rather ugly output and doesn't
573 handle several customised structures at all.
576 *) Integrated support for PVK file format and some related formats such
577 as MS PUBLICKEYBLOB and PRIVATEKEYBLOB. Command line switches to support
578 these in the 'rsa' and 'dsa' utilities.
581 *) Support for PKCS#1 RSAPublicKey format on rsa utility command line.
584 *) Remove the ancient ASN1_METHOD code. This was only ever used in one
585 place for the (very old) "NETSCAPE" format certificates which are now
586 handled using new ASN1 code equivalents.
589 *) Let the TLSv1_method() etc. functions return a 'const' SSL_METHOD
590 pointer and make the SSL_METHOD parameter in SSL_CTX_new,
591 SSL_CTX_set_ssl_version and SSL_set_ssl_method 'const'.
594 *) Modify CRL distribution points extension code to print out previously
595 unsupported fields. Enhance extension setting code to allow setting of
599 *) Add print and set support for Issuing Distribution Point CRL extension.
602 *) Change 'Configure' script to enable Camellia by default.
605 Changes between 0.9.8e and 0.9.8f [xx XXX xxxx]
607 *) Mitigate attack on final subtraction in Montgomery reduction.
610 *) Fix crypto/ec/ec_mult.c to work properly with scalars of value 0
611 (which previously caused an internal error).
614 *) Squeeze another 10% out of IGE mode when in != out.
617 *) AES IGE mode speedup.
618 [Dean Gaudet (Google)]
620 *) Add the Korean symmetric 128-bit cipher SEED (see
621 http://www.kisa.or.kr/kisa/seed/jsp/seed_eng.jsp) and
622 add SEED ciphersuites from RFC 4162:
624 TLS_RSA_WITH_SEED_CBC_SHA = "SEED-SHA"
625 TLS_DHE_DSS_WITH_SEED_CBC_SHA = "DHE-DSS-SEED-SHA"
626 TLS_DHE_RSA_WITH_SEED_CBC_SHA = "DHE-RSA-SEED-SHA"
627 TLS_DH_anon_WITH_SEED_CBC_SHA = "ADH-SEED-SHA"
629 To minimize changes between patchlevels in the OpenSSL 0.9.8
630 series, SEED remains excluded from compilation unless OpenSSL
631 is configured with 'enable-seed'.
634 *) Mitigate branch prediction attacks, which can be practical if a
635 single processor is shared, allowing a spy process to extract
636 information. For detailed background information, see
637 http://eprint.iacr.org/2007/039 (O. Aciicmez, S. Gueron,
638 J.-P. Seifert, "New Branch Prediction Vulnerabilities in OpenSSL
639 and Necessary Software Countermeasures"). The core of the change
640 are new versions BN_div_no_branch() and
641 BN_mod_inverse_no_branch() of BN_div() and BN_mod_inverse(),
642 respectively, which are slower, but avoid the security-relevant
643 conditional branches. These are automatically called by BN_div()
644 and BN_mod_inverse() if the flag BN_FLG_CONSTTIME is set for one
645 of the input BIGNUMs. Also, BN_is_bit_set() has been changed to
646 remove a conditional branch.
648 BN_FLG_CONSTTIME is the new name for the previous
649 BN_FLG_EXP_CONSTTIME flag, since it now affects more than just
650 modular exponentiation. (Since OpenSSL 0.9.7h, setting this flag
651 in the exponent causes BN_mod_exp_mont() to use the alternative
652 implementation in BN_mod_exp_mont_consttime().) The old name
653 remains as a deprecated alias.
655 Similary, RSA_FLAG_NO_EXP_CONSTTIME is replaced by a more general
656 RSA_FLAG_NO_CONSTTIME flag since the RSA implementation now uses
657 constant-time implementations for more than just exponentiation.
658 Here too the old name is kept as a deprecated alias.
660 BN_BLINDING_new() will now use BN_dup() for the modulus so that
661 the BN_BLINDING structure gets an independent copy of the
662 modulus. This means that the previous "BIGNUM *m" argument to
663 BN_BLINDING_new() and to BN_BLINDING_create_param() now
664 essentially becomes "const BIGNUM *m", although we can't actually
665 change this in the header file before 0.9.9. It allows
666 RSA_setup_blinding() to use BN_with_flags() on the modulus to
667 enable BN_FLG_CONSTTIME.
669 [Matthew D Wood (Intel Corp)]
671 *) In the SSL/TLS server implementation, be strict about session ID
672 context matching (which matters if an application uses a single
673 external cache for different purposes). Previously,
674 out-of-context reuse was forbidden only if SSL_VERIFY_PEER was
675 set. This did ensure strict client verification, but meant that,
676 with applications using a single external cache for quite
677 different requirements, clients could circumvent ciphersuite
678 restrictions for a given session ID context by starting a session
679 in a different context.
682 *) Include "!eNULL" in SSL_DEFAULT_CIPHER_LIST to make sure that
683 a ciphersuite string such as "DEFAULT:RSA" cannot enable
684 authentication-only ciphersuites.
687 Changes between 0.9.8d and 0.9.8e [23 Feb 2007]
689 *) Since AES128 and AES256 (and similarly Camellia128 and
690 Camellia256) share a single mask bit in the logic of
691 ssl/ssl_ciph.c, the code for masking out disabled ciphers needs a
692 kludge to work properly if AES128 is available and AES256 isn't
693 (or if Camellia128 is available and Camellia256 isn't).
696 *) Fix the BIT STRING encoding generated by crypto/ec/ec_asn1.c
697 (within i2d_ECPrivateKey, i2d_ECPKParameters, i2d_ECParameters):
698 When a point or a seed is encoded in a BIT STRING, we need to
699 prevent the removal of trailing zero bits to get the proper DER
700 encoding. (By default, crypto/asn1/a_bitstr.c assumes the case
701 of a NamedBitList, for which trailing 0 bits need to be removed.)
704 *) Have SSL/TLS server implementation tolerate "mismatched" record
705 protocol version while receiving ClientHello even if the
706 ClientHello is fragmented. (The server can't insist on the
707 particular protocol version it has chosen before the ServerHello
708 message has informed the client about his choice.)
711 *) Add RFC 3779 support.
712 [Rob Austein for ARIN, Ben Laurie]
714 *) Load error codes if they are not already present instead of using a
715 static variable. This allows them to be cleanly unloaded and reloaded.
716 Improve header file function name parsing.
719 *) extend SMTP and IMAP protocol emulation in s_client to use EHLO
720 or CAPABILITY handshake as required by RFCs.
723 Changes between 0.9.8c and 0.9.8d [28 Sep 2006]
725 *) Introduce limits to prevent malicious keys being able to
726 cause a denial of service. (CVE-2006-2940)
727 [Steve Henson, Bodo Moeller]
729 *) Fix ASN.1 parsing of certain invalid structures that can result
730 in a denial of service. (CVE-2006-2937) [Steve Henson]
732 *) Fix buffer overflow in SSL_get_shared_ciphers() function.
733 (CVE-2006-3738) [Tavis Ormandy and Will Drewry, Google Security Team]
735 *) Fix SSL client code which could crash if connecting to a
736 malicious SSLv2 server. (CVE-2006-4343)
737 [Tavis Ormandy and Will Drewry, Google Security Team]
739 *) Since 0.9.8b, ciphersuite strings naming explicit ciphersuites
740 match only those. Before that, "AES256-SHA" would be interpreted
741 as a pattern and match "AES128-SHA" too (since AES128-SHA got
742 the same strength classification in 0.9.7h) as we currently only
743 have a single AES bit in the ciphersuite description bitmap.
744 That change, however, also applied to ciphersuite strings such as
745 "RC4-MD5" that intentionally matched multiple ciphersuites --
746 namely, SSL 2.0 ciphersuites in addition to the more common ones
747 from SSL 3.0/TLS 1.0.
749 So we change the selection algorithm again: Naming an explicit
750 ciphersuite selects this one ciphersuite, and any other similar
751 ciphersuite (same bitmap) from *other* protocol versions.
752 Thus, "RC4-MD5" again will properly select both the SSL 2.0
753 ciphersuite and the SSL 3.0/TLS 1.0 ciphersuite.
755 Since SSL 2.0 does not have any ciphersuites for which the
756 128/256 bit distinction would be relevant, this works for now.
757 The proper fix will be to use different bits for AES128 and
758 AES256, which would have avoided the problems from the beginning;
759 however, bits are scarce, so we can only do this in a new release
760 (not just a patchlevel) when we can change the SSL_CIPHER
761 definition to split the single 'unsigned long mask' bitmap into
762 multiple values to extend the available space.
766 Changes between 0.9.8b and 0.9.8c [05 Sep 2006]
768 *) Avoid PKCS #1 v1.5 signature attack discovered by Daniel Bleichenbacher
769 (CVE-2006-4339) [Ben Laurie and Google Security Team]
771 *) Add AES IGE and biIGE modes.
774 *) Change the Unix randomness entropy gathering to use poll() when
775 possible instead of select(), since the latter has some
776 undesirable limitations.
777 [Darryl Miles via Richard Levitte and Bodo Moeller]
779 *) Disable "ECCdraft" ciphersuites more thoroughly. Now special
780 treatment in ssl/ssl_ciph.s makes sure that these ciphersuites
781 cannot be implicitly activated as part of, e.g., the "AES" alias.
782 However, please upgrade to OpenSSL 0.9.9[-dev] for
783 non-experimental use of the ECC ciphersuites to get TLS extension
784 support, which is required for curve and point format negotiation
785 to avoid potential handshake problems.
788 *) Disable rogue ciphersuites:
790 - SSLv2 0x08 0x00 0x80 ("RC4-64-MD5")
791 - SSLv3/TLSv1 0x00 0x61 ("EXP1024-RC2-CBC-MD5")
792 - SSLv3/TLSv1 0x00 0x60 ("EXP1024-RC4-MD5")
794 The latter two were purportedly from
795 draft-ietf-tls-56-bit-ciphersuites-0[01].txt, but do not really
798 Also deactivate the remaining ciphersuites from
799 draft-ietf-tls-56-bit-ciphersuites-01.txt. These are just as
800 unofficial, and the ID has long expired.
803 *) Fix RSA blinding Heisenbug (problems sometimes occured on
804 dual-core machines) and other potential thread-safety issues.
807 *) Add the symmetric cipher Camellia (128-bit, 192-bit, 256-bit key
808 versions), which is now available for royalty-free use
809 (see http://info.isl.ntt.co.jp/crypt/eng/info/chiteki.html).
810 Also, add Camellia TLS ciphersuites from RFC 4132.
812 To minimize changes between patchlevels in the OpenSSL 0.9.8
813 series, Camellia remains excluded from compilation unless OpenSSL
814 is configured with 'enable-camellia'.
817 *) Disable the padding bug check when compression is in use. The padding
818 bug check assumes the first packet is of even length, this is not
819 necessarily true if compresssion is enabled and can result in false
820 positives causing handshake failure. The actual bug test is ancient
821 code so it is hoped that implementations will either have fixed it by
822 now or any which still have the bug do not support compression.
825 Changes between 0.9.8a and 0.9.8b [04 May 2006]
827 *) When applying a cipher rule check to see if string match is an explicit
828 cipher suite and only match that one cipher suite if it is.
831 *) Link in manifests for VC++ if needed.
832 [Austin Ziegler <halostatue@gmail.com>]
834 *) Update support for ECC-based TLS ciphersuites according to
835 draft-ietf-tls-ecc-12.txt with proposed changes (but without
836 TLS extensions, which are supported starting with the 0.9.9
837 branch, not in the OpenSSL 0.9.8 branch).
840 *) New functions EVP_CIPHER_CTX_new() and EVP_CIPHER_CTX_free() to support
841 opaque EVP_CIPHER_CTX handling.
844 *) Fixes and enhancements to zlib compression code. We now only use
845 "zlib1.dll" and use the default __cdecl calling convention on Win32
846 to conform with the standards mentioned here:
847 http://www.zlib.net/DLL_FAQ.txt
848 Static zlib linking now works on Windows and the new --with-zlib-include
849 --with-zlib-lib options to Configure can be used to supply the location
850 of the headers and library. Gracefully handle case where zlib library
854 *) Several fixes and enhancements to the OID generation code. The old code
855 sometimes allowed invalid OIDs (1.X for X >= 40 for example), couldn't
856 handle numbers larger than ULONG_MAX, truncated printing and had a
857 non standard OBJ_obj2txt() behaviour.
860 *) Add support for building of engines under engine/ as shared libraries
861 under VC++ build system.
864 *) Corrected the numerous bugs in the Win32 path splitter in DSO.
865 Hopefully, we will not see any false combination of paths any more.
868 Changes between 0.9.8 and 0.9.8a [11 Oct 2005]
870 *) Remove the functionality of SSL_OP_MSIE_SSLV2_RSA_PADDING
871 (part of SSL_OP_ALL). This option used to disable the
872 countermeasure against man-in-the-middle protocol-version
873 rollback in the SSL 2.0 server implementation, which is a bad
874 idea. (CVE-2005-2969)
876 [Bodo Moeller; problem pointed out by Yutaka Oiwa (Research Center
877 for Information Security, National Institute of Advanced Industrial
878 Science and Technology [AIST], Japan)]
880 *) Add two function to clear and return the verify parameter flags.
883 *) Keep cipherlists sorted in the source instead of sorting them at
884 runtime, thus removing the need for a lock.
887 *) Avoid some small subgroup attacks in Diffie-Hellman.
888 [Nick Mathewson and Ben Laurie]
890 *) Add functions for well-known primes.
893 *) Extended Windows CE support.
894 [Satoshi Nakamura and Andy Polyakov]
896 *) Initialize SSL_METHOD structures at compile time instead of during
897 runtime, thus removing the need for a lock.
900 *) Make PKCS7_decrypt() work even if no certificate is supplied by
901 attempting to decrypt each encrypted key in turn. Add support to
905 Changes between 0.9.7h and 0.9.8 [05 Jul 2005]
907 [NB: OpenSSL 0.9.7i and later 0.9.7 patch levels were released after
910 *) Add libcrypto.pc and libssl.pc for those who feel they need them.
913 *) Change CA.sh and CA.pl so they don't bundle the CSR and the private
914 key into the same file any more.
917 *) Add initial support for Win64, both IA64 and AMD64/x64 flavors.
920 *) Add -utf8 command line and config file option to 'ca'.
921 [Stefan <stf@udoma.org]
923 *) Removed the macro des_crypt(), as it seems to conflict with some
924 libraries. Use DES_crypt().
927 *) Correct naming of the 'chil' and '4758cca' ENGINEs. This
928 involves renaming the source and generated shared-libs for
929 both. The engines will accept the corrected or legacy ids
930 ('ncipher' and '4758_cca' respectively) when binding. NB,
931 this only applies when building 'shared'.
932 [Corinna Vinschen <vinschen@redhat.com> and Geoff Thorpe]
934 *) Add attribute functions to EVP_PKEY structure. Modify
935 PKCS12_create() to recognize a CSP name attribute and
936 use it. Make -CSP option work again in pkcs12 utility.
939 *) Add new functionality to the bn blinding code:
940 - automatic re-creation of the BN_BLINDING parameters after
941 a fixed number of uses (currently 32)
942 - add new function for parameter creation
943 - introduce flags to control the update behaviour of the
944 BN_BLINDING parameters
945 - hide BN_BLINDING structure
946 Add a second BN_BLINDING slot to the RSA structure to improve
947 performance when a single RSA object is shared among several
951 *) Add support for DTLS.
952 [Nagendra Modadugu <nagendra@cs.stanford.edu> and Ben Laurie]
954 *) Add support for DER encoded private keys (SSL_FILETYPE_ASN1)
955 to SSL_CTX_use_PrivateKey_file() and SSL_use_PrivateKey_file()
958 *) Remove buggy and incompletet DH cert support from
959 ssl/ssl_rsa.c and ssl/s3_both.c
962 *) Use SHA-1 instead of MD5 as the default digest algorithm for
963 the apps/openssl applications.
966 *) Compile clean with "-Wall -Wmissing-prototypes
967 -Wstrict-prototypes -Wmissing-declarations -Werror". Currently
968 DEBUG_SAFESTACK must also be set.
971 *) Change ./Configure so that certain algorithms can be disabled by default.
972 The new counterpiece to "no-xxx" is "enable-xxx".
974 The patented RC5 and MDC2 algorithms will now be disabled unless
975 "enable-rc5" and "enable-mdc2", respectively, are specified.
977 (IDEA remains enabled despite being patented. This is because IDEA
978 is frequently required for interoperability, and there is no license
979 fee for non-commercial use. As before, "no-idea" can be used to
980 avoid this algorithm.)
984 *) Add processing of proxy certificates (see RFC 3820). This work was
985 sponsored by KTH (The Royal Institute of Technology in Stockholm) and
986 EGEE (Enabling Grids for E-science in Europe).
989 *) RC4 performance overhaul on modern architectures/implementations, such
990 as Intel P4, IA-64 and AMD64.
993 *) New utility extract-section.pl. This can be used specify an alternative
994 section number in a pod file instead of having to treat each file as
995 a separate case in Makefile. This can be done by adding two lines to the
998 =for comment openssl_section:XXX
1000 The blank line is mandatory.
1004 *) New arguments -certform, -keyform and -pass for s_client and s_server
1005 to allow alternative format key and certificate files and passphrase
1009 *) New structure X509_VERIFY_PARAM which combines current verify parameters,
1010 update associated structures and add various utility functions.
1012 Add new policy related verify parameters, include policy checking in
1013 standard verify code. Enhance 'smime' application with extra parameters
1014 to support policy checking and print out.
1017 *) Add a new engine to support VIA PadLock ACE extensions in the VIA C3
1018 Nehemiah processors. These extensions support AES encryption in hardware
1019 as well as RNG (though RNG support is currently disabled).
1020 [Michal Ludvig <michal@logix.cz>, with help from Andy Polyakov]
1022 *) Deprecate BN_[get|set]_params() functions (they were ignored internally).
1025 *) New FIPS 180-2 algorithms, SHA-224/-256/-384/-512 are implemented.
1026 [Andy Polyakov and a number of other people]
1028 *) Improved PowerPC platform support. Most notably BIGNUM assembler
1029 implementation contributed by IBM.
1030 [Suresh Chari, Peter Waltenberg, Andy Polyakov]
1032 *) The new 'RSA_generate_key_ex' function now takes a BIGNUM for the public
1033 exponent rather than 'unsigned long'. There is a corresponding change to
1034 the new 'rsa_keygen' element of the RSA_METHOD structure.
1035 [Jelte Jansen, Geoff Thorpe]
1037 *) Functionality for creating the initial serial number file is now
1038 moved from CA.pl to the 'ca' utility with a new option -create_serial.
1040 (Before OpenSSL 0.9.7e, CA.pl used to initialize the serial
1041 number file to 1, which is bound to cause problems. To avoid
1042 the problems while respecting compatibility between different 0.9.7
1043 patchlevels, 0.9.7e employed 'openssl x509 -next_serial' in
1044 CA.pl for serial number initialization. With the new release 0.9.8,
1045 we can fix the problem directly in the 'ca' utility.)
1048 *) Reduced header interdepencies by declaring more opaque objects in
1049 ossl_typ.h. As a consequence, including some headers (eg. engine.h) will
1050 give fewer recursive includes, which could break lazy source code - so
1051 this change is covered by the OPENSSL_NO_DEPRECATED symbol. As always,
1052 developers should define this symbol when building and using openssl to
1053 ensure they track the recommended behaviour, interfaces, [etc], but
1054 backwards-compatible behaviour prevails when this isn't defined.
1057 *) New function X509_POLICY_NODE_print() which prints out policy nodes.
1060 *) Add new EVP function EVP_CIPHER_CTX_rand_key and associated functionality.
1061 This will generate a random key of the appropriate length based on the
1062 cipher context. The EVP_CIPHER can provide its own random key generation
1063 routine to support keys of a specific form. This is used in the des and
1064 3des routines to generate a key of the correct parity. Update S/MIME
1065 code to use new functions and hence generate correct parity DES keys.
1066 Add EVP_CHECK_DES_KEY #define to return an error if the key is not
1067 valid (weak or incorrect parity).
1070 *) Add a local set of CRLs that can be used by X509_verify_cert() as well
1071 as looking them up. This is useful when the verified structure may contain
1072 CRLs, for example PKCS#7 signedData. Modify PKCS7_verify() to use any CRLs
1073 present unless the new PKCS7_NO_CRL flag is asserted.
1076 *) Extend ASN1 oid configuration module. It now additionally accepts the
1079 shortName = some long name, 1.2.3.4
1082 *) Reimplemented the BN_CTX implementation. There is now no more static
1083 limitation on the number of variables it can handle nor the depth of the
1084 "stack" handling for BN_CTX_start()/BN_CTX_end() pairs. The stack
1085 information can now expand as required, and rather than having a single
1086 static array of bignums, BN_CTX now uses a linked-list of such arrays
1087 allowing it to expand on demand whilst maintaining the usefulness of
1088 BN_CTX's "bundling".
1091 *) Add a missing BN_CTX parameter to the 'rsa_mod_exp' callback in RSA_METHOD
1092 to allow all RSA operations to function using a single BN_CTX.
1095 *) Preliminary support for certificate policy evaluation and checking. This
1096 is initially intended to pass the tests outlined in "Conformance Testing
1097 of Relying Party Client Certificate Path Processing Logic" v1.07.
1100 *) bn_dup_expand() has been deprecated, it was introduced in 0.9.7 and
1101 remained unused and not that useful. A variety of other little bignum
1102 tweaks and fixes have also been made continuing on from the audit (see
1106 *) Constify all or almost all d2i, c2i, s2i and r2i functions, along with
1107 associated ASN1, EVP and SSL functions and old ASN1 macros.
1110 *) BN_zero() only needs to set 'top' and 'neg' to zero for correct results,
1111 and this should never fail. So the return value from the use of
1112 BN_set_word() (which can fail due to needless expansion) is now deprecated;
1113 if OPENSSL_NO_DEPRECATED is defined, BN_zero() is a void macro.
1116 *) BN_CTX_get() should return zero-valued bignums, providing the same
1117 initialised value as BN_new().
1118 [Geoff Thorpe, suggested by Ulf Möller]
1120 *) Support for inhibitAnyPolicy certificate extension.
1123 *) An audit of the BIGNUM code is underway, for which debugging code is
1124 enabled when BN_DEBUG is defined. This makes stricter enforcements on what
1125 is considered valid when processing BIGNUMs, and causes execution to
1126 assert() when a problem is discovered. If BN_DEBUG_RAND is defined,
1127 further steps are taken to deliberately pollute unused data in BIGNUM
1128 structures to try and expose faulty code further on. For now, openssl will
1129 (in its default mode of operation) continue to tolerate the inconsistent
1130 forms that it has tolerated in the past, but authors and packagers should
1131 consider trying openssl and their own applications when compiled with
1132 these debugging symbols defined. It will help highlight potential bugs in
1133 their own code, and will improve the test coverage for OpenSSL itself. At
1134 some point, these tighter rules will become openssl's default to improve
1135 maintainability, though the assert()s and other overheads will remain only
1136 in debugging configurations. See bn.h for more details.
1137 [Geoff Thorpe, Nils Larsch, Ulf Möller]
1139 *) BN_CTX_init() has been deprecated, as BN_CTX is an opaque structure
1140 that can only be obtained through BN_CTX_new() (which implicitly
1141 initialises it). The presence of this function only made it possible
1142 to overwrite an existing structure (and cause memory leaks).
1145 *) Because of the callback-based approach for implementing LHASH as a
1146 template type, lh_insert() adds opaque objects to hash-tables and
1147 lh_doall() or lh_doall_arg() are typically used with a destructor callback
1148 to clean up those corresponding objects before destroying the hash table
1149 (and losing the object pointers). So some over-zealous constifications in
1150 LHASH have been relaxed so that lh_insert() does not take (nor store) the
1151 objects as "const" and the lh_doall[_arg] callback wrappers are not
1152 prototyped to have "const" restrictions on the object pointers they are
1153 given (and so aren't required to cast them away any more).
1156 *) The tmdiff.h API was so ugly and minimal that our own timing utility
1157 (speed) prefers to use its own implementation. The two implementations
1158 haven't been consolidated as yet (volunteers?) but the tmdiff API has had
1159 its object type properly exposed (MS_TM) instead of casting to/from "char
1160 *". This may still change yet if someone realises MS_TM and "ms_time_***"
1161 aren't necessarily the greatest nomenclatures - but this is what was used
1162 internally to the implementation so I've used that for now.
1165 *) Ensure that deprecated functions do not get compiled when
1166 OPENSSL_NO_DEPRECATED is defined. Some "openssl" subcommands and a few of
1167 the self-tests were still using deprecated key-generation functions so
1168 these have been updated also.
1171 *) Reorganise PKCS#7 code to separate the digest location functionality
1172 into PKCS7_find_digest(), digest addtion into PKCS7_bio_add_digest().
1173 New function PKCS7_set_digest() to set the digest type for PKCS#7
1174 digestedData type. Add additional code to correctly generate the
1175 digestedData type and add support for this type in PKCS7 initialization
1179 *) New function PKCS7_set0_type_other() this initializes a PKCS7
1180 structure of type "other".
1183 *) Fix prime generation loop in crypto/bn/bn_prime.pl by making
1184 sure the loop does correctly stop and breaking ("division by zero")
1185 modulus operations are not performed. The (pre-generated) prime
1186 table crypto/bn/bn_prime.h was already correct, but it could not be
1187 re-generated on some platforms because of the "division by zero"
1188 situation in the script.
1189 [Ralf S. Engelschall]
1191 *) Update support for ECC-based TLS ciphersuites according to
1192 draft-ietf-tls-ecc-03.txt: the KDF1 key derivation function with
1193 SHA-1 now is only used for "small" curves (where the
1194 representation of a field element takes up to 24 bytes); for
1195 larger curves, the field element resulting from ECDH is directly
1196 used as premaster secret.
1197 [Douglas Stebila (Sun Microsystems Laboratories)]
1199 *) Add code for kP+lQ timings to crypto/ec/ectest.c, and add SEC2
1200 curve secp160r1 to the tests.
1201 [Douglas Stebila (Sun Microsystems Laboratories)]
1203 *) Add the possibility to load symbols globally with DSO.
1204 [Götz Babin-Ebell <babin-ebell@trustcenter.de> via Richard Levitte]
1206 *) Add the functions ERR_set_mark() and ERR_pop_to_mark() for better
1207 control of the error stack.
1210 *) Add support for STORE in ENGINE.
1213 *) Add the STORE type. The intention is to provide a common interface
1214 to certificate and key stores, be they simple file-based stores, or
1215 HSM-type store, or LDAP stores, or...
1216 NOTE: The code is currently UNTESTED and isn't really used anywhere.
1219 *) Add a generic structure called OPENSSL_ITEM. This can be used to
1220 pass a list of arguments to any function as well as provide a way
1221 for a function to pass data back to the caller.
1224 *) Add the functions BUF_strndup() and BUF_memdup(). BUF_strndup()
1225 works like BUF_strdup() but can be used to duplicate a portion of
1226 a string. The copy gets NUL-terminated. BUF_memdup() duplicates
1230 *) Add the function sk_find_ex() which works like sk_find(), but will
1231 return an index to an element even if an exact match couldn't be
1232 found. The index is guaranteed to point at the element where the
1233 searched-for key would be inserted to preserve sorting order.
1236 *) Add the function OBJ_bsearch_ex() which works like OBJ_bsearch() but
1237 takes an extra flags argument for optional functionality. Currently,
1238 the following flags are defined:
1240 OBJ_BSEARCH_VALUE_ON_NOMATCH
1241 This one gets OBJ_bsearch_ex() to return a pointer to the first
1242 element where the comparing function returns a negative or zero
1245 OBJ_BSEARCH_FIRST_VALUE_ON_MATCH
1246 This one gets OBJ_bsearch_ex() to return a pointer to the first
1247 element where the comparing function returns zero. This is useful
1248 if there are more than one element where the comparing function
1252 *) Make it possible to create self-signed certificates with 'openssl ca'
1253 in such a way that the self-signed certificate becomes part of the
1254 CA database and uses the same mechanisms for serial number generation
1255 as all other certificate signing. The new flag '-selfsign' enables
1256 this functionality. Adapt CA.sh and CA.pl.in.
1259 *) Add functionality to check the public key of a certificate request
1260 against a given private. This is useful to check that a certificate
1261 request can be signed by that key (self-signing).
1264 *) Make it possible to have multiple active certificates with the same
1265 subject in the CA index file. This is done only if the keyword
1266 'unique_subject' is set to 'no' in the main CA section (default
1267 if 'CA_default') of the configuration file. The value is saved
1268 with the database itself in a separate index attribute file,
1269 named like the index file with '.attr' appended to the name.
1272 *) Generate muti valued AVAs using '+' notation in config files for
1276 *) Support for nameConstraints certificate extension.
1279 *) Support for policyConstraints certificate extension.
1282 *) Support for policyMappings certificate extension.
1285 *) Make sure the default DSA_METHOD implementation only uses its
1286 dsa_mod_exp() and/or bn_mod_exp() handlers if they are non-NULL,
1287 and change its own handlers to be NULL so as to remove unnecessary
1288 indirection. This lets alternative implementations fallback to the
1289 default implementation more easily.
1292 *) Support for directoryName in GeneralName related extensions
1296 *) Make it possible to link applications using Makefile.shared.
1297 Make that possible even when linking against static libraries!
1300 *) Support for single pass processing for S/MIME signing. This now
1301 means that S/MIME signing can be done from a pipe, in addition
1302 cleartext signing (multipart/signed type) is effectively streaming
1303 and the signed data does not need to be all held in memory.
1305 This is done with a new flag PKCS7_STREAM. When this flag is set
1306 PKCS7_sign() only initializes the PKCS7 structure and the actual signing
1307 is done after the data is output (and digests calculated) in
1308 SMIME_write_PKCS7().
1311 *) Add full support for -rpath/-R, both in shared libraries and
1312 applications, at least on the platforms where it's known how
1316 *) In crypto/ec/ec_mult.c, implement fast point multiplication with
1317 precomputation, based on wNAF splitting: EC_GROUP_precompute_mult()
1318 will now compute a table of multiples of the generator that
1319 makes subsequent invocations of EC_POINTs_mul() or EC_POINT_mul()
1320 faster (notably in the case of a single point multiplication,
1321 scalar * generator).
1322 [Nils Larsch, Bodo Moeller]
1324 *) IPv6 support for certificate extensions. The various extensions
1325 which use the IP:a.b.c.d can now take IPv6 addresses using the
1326 formats of RFC1884 2.2 . IPv6 addresses are now also displayed
1330 *) Added an ENGINE that implements RSA by performing private key
1331 exponentiations with the GMP library. The conversions to and from
1332 GMP's mpz_t format aren't optimised nor are any montgomery forms
1333 cached, and on x86 it appears OpenSSL's own performance has caught up.
1334 However there are likely to be other architectures where GMP could
1335 provide a boost. This ENGINE is not built in by default, but it can be
1336 specified at Configure time and should be accompanied by the necessary
1337 linker additions, eg;
1338 ./config -DOPENSSL_USE_GMP -lgmp
1341 *) "openssl engine" will not display ENGINE/DSO load failure errors when
1342 testing availability of engines with "-t" - the old behaviour is
1343 produced by increasing the feature's verbosity with "-tt".
1346 *) ECDSA routines: under certain error conditions uninitialized BN objects
1347 could be freed. Solution: make sure initialization is performed early
1348 enough. (Reported and fix supplied by Nils Larsch <nla@trustcenter.de>
1352 *) Key-generation can now be implemented in RSA_METHOD, DSA_METHOD
1353 and DH_METHOD (eg. by ENGINE implementations) to override the normal
1354 software implementations. For DSA and DH, parameter generation can
1355 also be overriden by providing the appropriate method callbacks.
1358 *) Change the "progress" mechanism used in key-generation and
1359 primality testing to functions that take a new BN_GENCB pointer in
1360 place of callback/argument pairs. The new API functions have "_ex"
1361 postfixes and the older functions are reimplemented as wrappers for
1362 the new ones. The OPENSSL_NO_DEPRECATED symbol can be used to hide
1363 declarations of the old functions to help (graceful) attempts to
1364 migrate to the new functions. Also, the new key-generation API
1365 functions operate on a caller-supplied key-structure and return
1366 success/failure rather than returning a key or NULL - this is to
1367 help make "keygen" another member function of RSA_METHOD etc.
1369 Example for using the new callback interface:
1371 int (*my_callback)(int a, int b, BN_GENCB *cb) = ...;
1375 BN_GENCB_set(&my_cb, my_callback, my_arg);
1377 return BN_is_prime_ex(some_bignum, BN_prime_checks, NULL, &cb);
1378 /* For the meaning of a, b in calls to my_callback(), see the
1379 * documentation of the function that calls the callback.
1380 * cb will point to my_cb; my_arg can be retrieved as cb->arg.
1381 * my_callback should return 1 if it wants BN_is_prime_ex()
1382 * to continue, or 0 to stop.
1387 *) Change the ZLIB compression method to be stateful, and make it
1388 available to TLS with the number defined in
1389 draft-ietf-tls-compression-04.txt.
1392 *) Add the ASN.1 structures and functions for CertificatePair, which
1393 is defined as follows (according to X.509_4thEditionDraftV6.pdf):
1395 CertificatePair ::= SEQUENCE {
1396 forward [0] Certificate OPTIONAL,
1397 reverse [1] Certificate OPTIONAL,
1398 -- at least one of the pair shall be present -- }
1400 Also implement the PEM functions to read and write certificate
1401 pairs, and defined the PEM tag as "CERTIFICATE PAIR".
1403 This needed to be defined, mostly for the sake of the LDAP
1404 attribute crossCertificatePair, but may prove useful elsewhere as
1408 *) Make it possible to inhibit symlinking of shared libraries in
1409 Makefile.shared, for Cygwin's sake.
1412 *) Extend the BIGNUM API by creating a function
1413 void BN_set_negative(BIGNUM *a, int neg);
1414 and a macro that behave like
1415 int BN_is_negative(const BIGNUM *a);
1417 to avoid the need to access 'a->neg' directly in applications.
1420 *) Implement fast modular reduction for pseudo-Mersenne primes
1421 used in NIST curves (crypto/bn/bn_nist.c, crypto/ec/ecp_nist.c).
1422 EC_GROUP_new_curve_GFp() will now automatically use this
1424 [Nils Larsch <nla@trustcenter.de>]
1426 *) Add new lock type (CRYPTO_LOCK_BN).
1429 *) Change the ENGINE framework to automatically load engines
1430 dynamically from specific directories unless they could be
1431 found to already be built in or loaded. Move all the
1432 current engines except for the cryptodev one to a new
1434 The engines in engines/ are built as shared libraries if
1435 the "shared" options was given to ./Configure or ./config.
1436 Otherwise, they are inserted in libcrypto.a.
1437 /usr/local/ssl/engines is the default directory for dynamic
1438 engines, but that can be overriden at configure time through
1439 the usual use of --prefix and/or --openssldir, and at run
1440 time with the environment variable OPENSSL_ENGINES.
1441 [Geoff Thorpe and Richard Levitte]
1443 *) Add Makefile.shared, a helper makefile to build shared
1444 libraries. Addapt Makefile.org.
1447 *) Add version info to Win32 DLLs.
1448 [Peter 'Luna' Runestig" <peter@runestig.com>]
1450 *) Add new 'medium level' PKCS#12 API. Certificates and keys
1451 can be added using this API to created arbitrary PKCS#12
1452 files while avoiding the low level API.
1454 New options to PKCS12_create(), key or cert can be NULL and
1455 will then be omitted from the output file. The encryption
1456 algorithm NIDs can be set to -1 for no encryption, the mac
1457 iteration count can be set to 0 to omit the mac.
1459 Enhance pkcs12 utility by making the -nokeys and -nocerts
1460 options work when creating a PKCS#12 file. New option -nomac
1461 to omit the mac, NONE can be set for an encryption algorithm.
1462 New code is modified to use the enhanced PKCS12_create()
1463 instead of the low level API.
1466 *) Extend ASN1 encoder to support indefinite length constructed
1467 encoding. This can output sequences tags and octet strings in
1468 this form. Modify pk7_asn1.c to support indefinite length
1469 encoding. This is experimental and needs additional code to
1470 be useful, such as an ASN1 bio and some enhanced streaming
1473 Extend template encode functionality so that tagging is passed
1474 down to the template encoder.
1477 *) Let 'openssl req' fail if an argument to '-newkey' is not
1478 recognized instead of using RSA as a default.
1481 *) Add support for ECC-based ciphersuites from draft-ietf-tls-ecc-01.txt.
1482 As these are not official, they are not included in "ALL";
1483 the "ECCdraft" ciphersuite group alias can be used to select them.
1484 [Vipul Gupta and Sumit Gupta (Sun Microsystems Laboratories)]
1486 *) Add ECDH engine support.
1487 [Nils Gura and Douglas Stebila (Sun Microsystems Laboratories)]
1489 *) Add ECDH in new directory crypto/ecdh/.
1490 [Douglas Stebila (Sun Microsystems Laboratories)]
1492 *) Let BN_rand_range() abort with an error after 100 iterations
1493 without success (which indicates a broken PRNG).
1496 *) Change BN_mod_sqrt() so that it verifies that the input value
1497 is really the square of the return value. (Previously,
1498 BN_mod_sqrt would show GIGO behaviour.)
1501 *) Add named elliptic curves over binary fields from X9.62, SECG,
1502 and WAP/WTLS; add OIDs that were still missing.
1504 [Sheueling Chang Shantz and Douglas Stebila
1505 (Sun Microsystems Laboratories)]
1507 *) Extend the EC library for elliptic curves over binary fields
1508 (new files ec2_smpl.c, ec2_smpt.c, ec2_mult.c in crypto/ec/).
1511 EC_GF2m_simple_method
1515 EC_GROUP_new_curve_GF2m
1516 EC_GROUP_set_curve_GF2m
1517 EC_GROUP_get_curve_GF2m
1518 EC_POINT_set_affine_coordinates_GF2m
1519 EC_POINT_get_affine_coordinates_GF2m
1520 EC_POINT_set_compressed_coordinates_GF2m
1522 Point compression for binary fields is disabled by default for
1523 patent reasons (compile with OPENSSL_EC_BIN_PT_COMP defined to
1526 As binary polynomials are represented as BIGNUMs, various members
1527 of the EC_GROUP and EC_POINT data structures can be shared
1528 between the implementations for prime fields and binary fields;
1529 the above ..._GF2m functions (except for EX_GROUP_new_curve_GF2m)
1530 are essentially identical to their ..._GFp counterparts.
1531 (For simplicity, the '..._GFp' prefix has been dropped from
1532 various internal method names.)
1534 An internal 'field_div' method (similar to 'field_mul' and
1535 'field_sqr') has been added; this is used only for binary fields.
1537 [Sheueling Chang Shantz and Douglas Stebila
1538 (Sun Microsystems Laboratories)]
1540 *) Optionally dispatch EC_POINT_mul(), EC_POINT_precompute_mult()
1541 through methods ('mul', 'precompute_mult').
1543 The generic implementations (now internally called 'ec_wNAF_mul'
1544 and 'ec_wNAF_precomputed_mult') remain the default if these
1545 methods are undefined.
1547 [Sheueling Chang Shantz and Douglas Stebila
1548 (Sun Microsystems Laboratories)]
1550 *) New function EC_GROUP_get_degree, which is defined through
1551 EC_METHOD. For curves over prime fields, this returns the bit
1552 length of the modulus.
1554 [Sheueling Chang Shantz and Douglas Stebila
1555 (Sun Microsystems Laboratories)]
1557 *) New functions EC_GROUP_dup, EC_POINT_dup.
1558 (These simply call ..._new and ..._copy).
1560 [Sheueling Chang Shantz and Douglas Stebila
1561 (Sun Microsystems Laboratories)]
1563 *) Add binary polynomial arithmetic software in crypto/bn/bn_gf2m.c.
1564 Polynomials are represented as BIGNUMs (where the sign bit is not
1565 used) in the following functions [macros]:
1568 BN_GF2m_sub [= BN_GF2m_add]
1569 BN_GF2m_mod [wrapper for BN_GF2m_mod_arr]
1570 BN_GF2m_mod_mul [wrapper for BN_GF2m_mod_mul_arr]
1571 BN_GF2m_mod_sqr [wrapper for BN_GF2m_mod_sqr_arr]
1573 BN_GF2m_mod_exp [wrapper for BN_GF2m_mod_exp_arr]
1574 BN_GF2m_mod_sqrt [wrapper for BN_GF2m_mod_sqrt_arr]
1575 BN_GF2m_mod_solve_quad [wrapper for BN_GF2m_mod_solve_quad_arr]
1576 BN_GF2m_cmp [= BN_ucmp]
1578 (Note that only the 'mod' functions are actually for fields GF(2^m).
1579 BN_GF2m_add() is misnomer, but this is for the sake of consistency.)
1581 For some functions, an the irreducible polynomial defining a
1582 field can be given as an 'unsigned int[]' with strictly
1583 decreasing elements giving the indices of those bits that are set;
1584 i.e., p[] represents the polynomial
1585 f(t) = t^p[0] + t^p[1] + ... + t^p[k]
1587 p[0] > p[1] > ... > p[k] = 0.
1588 This applies to the following functions:
1593 BN_GF2m_mod_inv_arr [wrapper for BN_GF2m_mod_inv]
1594 BN_GF2m_mod_div_arr [wrapper for BN_GF2m_mod_div]
1596 BN_GF2m_mod_sqrt_arr
1597 BN_GF2m_mod_solve_quad_arr
1601 Conversion can be performed by the following functions:
1606 bntest.c has additional tests for binary polynomial arithmetic.
1608 Two implementations for BN_GF2m_mod_div() are available.
1609 The default algorithm simply uses BN_GF2m_mod_inv() and
1610 BN_GF2m_mod_mul(). The alternative algorithm is compiled in only
1611 if OPENSSL_SUN_GF2M_DIV is defined (patent pending; read the
1612 copyright notice in crypto/bn/bn_gf2m.c before enabling it).
1614 [Sheueling Chang Shantz and Douglas Stebila
1615 (Sun Microsystems Laboratories)]
1617 *) Add new error code 'ERR_R_DISABLED' that can be used when some
1618 functionality is disabled at compile-time.
1619 [Douglas Stebila <douglas.stebila@sun.com>]
1621 *) Change default behaviour of 'openssl asn1parse' so that more
1622 information is visible when viewing, e.g., a certificate:
1624 Modify asn1_parse2 (crypto/asn1/asn1_par.c) so that in non-'dump'
1625 mode the content of non-printable OCTET STRINGs is output in a
1626 style similar to INTEGERs, but with '[HEX DUMP]' prepended to
1627 avoid the appearance of a printable string.
1628 [Nils Larsch <nla@trustcenter.de>]
1630 *) Add 'asn1_flag' and 'asn1_form' member to EC_GROUP with access
1632 EC_GROUP_set_asn1_flag()
1633 EC_GROUP_get_asn1_flag()
1634 EC_GROUP_set_point_conversion_form()
1635 EC_GROUP_get_point_conversion_form()
1636 These control ASN1 encoding details:
1637 - Curves (i.e., groups) are encoded explicitly unless asn1_flag
1638 has been set to OPENSSL_EC_NAMED_CURVE.
1639 - Points are encoded in uncompressed form by default; options for
1640 asn1_for are as for point2oct, namely
1641 POINT_CONVERSION_COMPRESSED
1642 POINT_CONVERSION_UNCOMPRESSED
1643 POINT_CONVERSION_HYBRID
1645 Also add 'seed' and 'seed_len' members to EC_GROUP with access
1648 EC_GROUP_get0_seed()
1649 EC_GROUP_get_seed_len()
1650 This is used only for ASN1 purposes (so far).
1651 [Nils Larsch <nla@trustcenter.de>]
1653 *) Add 'field_type' member to EC_METHOD, which holds the NID
1654 of the appropriate field type OID. The new function
1655 EC_METHOD_get_field_type() returns this value.
1656 [Nils Larsch <nla@trustcenter.de>]
1661 EC_POINT_point2hex()
1662 EC_POINT_hex2point()
1663 providing useful interfaces to EC_POINT_point2oct() and
1664 EC_POINT_oct2point().
1665 [Nils Larsch <nla@trustcenter.de>]
1667 *) Change internals of the EC library so that the functions
1668 EC_GROUP_set_generator()
1669 EC_GROUP_get_generator()
1670 EC_GROUP_get_order()
1671 EC_GROUP_get_cofactor()
1672 are implemented directly in crypto/ec/ec_lib.c and not dispatched
1673 to methods, which would lead to unnecessary code duplication when
1674 adding different types of curves.
1675 [Nils Larsch <nla@trustcenter.de> with input by Bodo Moeller]
1677 *) Implement compute_wNAF (crypto/ec/ec_mult.c) without BIGNUM
1678 arithmetic, and such that modified wNAFs are generated
1679 (which avoid length expansion in many cases).
1682 *) Add a function EC_GROUP_check_discriminant() (defined via
1683 EC_METHOD) that verifies that the curve discriminant is non-zero.
1685 Add a function EC_GROUP_check() that makes some sanity tests
1686 on a EC_GROUP, its generator and order. This includes
1687 EC_GROUP_check_discriminant().
1688 [Nils Larsch <nla@trustcenter.de>]
1690 *) Add ECDSA in new directory crypto/ecdsa/.
1692 Add applications 'openssl ecparam' and 'openssl ecdsa'
1693 (these are based on 'openssl dsaparam' and 'openssl dsa').
1695 ECDSA support is also included in various other files across the
1696 library. Most notably,
1697 - 'openssl req' now has a '-newkey ecdsa:file' option;
1698 - EVP_PKCS82PKEY (crypto/evp/evp_pkey.c) now can handle ECDSA;
1699 - X509_PUBKEY_get (crypto/asn1/x_pubkey.c) and
1700 d2i_PublicKey (crypto/asn1/d2i_pu.c) have been modified to make
1701 them suitable for ECDSA where domain parameters must be
1702 extracted before the specific public key;
1703 - ECDSA engine support has been added.
1704 [Nils Larsch <nla@trustcenter.de>]
1706 *) Include some named elliptic curves, and add OIDs from X9.62,
1707 SECG, and WAP/WTLS. Each curve can be obtained from the new
1709 EC_GROUP_new_by_curve_name(),
1710 and the list of available named curves can be obtained with
1711 EC_get_builtin_curves().
1712 Also add a 'curve_name' member to EC_GROUP objects, which can be
1714 EC_GROUP_set_curve_name()
1715 EC_GROUP_get_curve_name()
1716 [Nils Larsch <larsch@trustcenter.de, Bodo Moeller]
1718 *) Remove a few calls to bn_wexpand() in BN_sqr() (the one in there
1719 was actually never needed) and in BN_mul(). The removal in BN_mul()
1720 required a small change in bn_mul_part_recursive() and the addition
1721 of the functions bn_cmp_part_words(), bn_sub_part_words() and
1722 bn_add_part_words(), which do the same thing as bn_cmp_words(),
1723 bn_sub_words() and bn_add_words() except they take arrays with
1727 Changes between 0.9.7m and 0.9.7n [xx XXX xxxx]
1729 *) In the SSL/TLS server implementation, be strict about session ID
1730 context matching (which matters if an application uses a single
1731 external cache for different purposes). Previously,
1732 out-of-context reuse was forbidden only if SSL_VERIFY_PEER was
1733 set. This did ensure strict client verification, but meant that,
1734 with applications using a single external cache for quite
1735 different requirements, clients could circumvent ciphersuite
1736 restrictions for a given session ID context by starting a session
1737 in a different context.
1740 Changes between 0.9.7l and 0.9.7m [23 Feb 2007]
1742 *) Cleanse PEM buffers before freeing them since they may contain
1744 [Benjamin Bennett <ben@psc.edu>]
1746 *) Include "!eNULL" in SSL_DEFAULT_CIPHER_LIST to make sure that
1747 a ciphersuite string such as "DEFAULT:RSA" cannot enable
1748 authentication-only ciphersuites.
1751 *) Since AES128 and AES256 share a single mask bit in the logic of
1752 ssl/ssl_ciph.c, the code for masking out disabled ciphers needs a
1753 kludge to work properly if AES128 is available and AES256 isn't.
1756 *) Expand security boundary to match 1.1.1 module.
1759 *) Remove redundant features: hash file source, editing of test vectors
1760 modify fipsld to use external fips_premain.c signature.
1763 *) New perl script mkfipsscr.pl to create shell scripts or batch files to
1764 run algorithm test programs.
1767 *) Make algorithm test programs more tolerant of whitespace.
1770 *) Have SSL/TLS server implementation tolerate "mismatched" record
1771 protocol version while receiving ClientHello even if the
1772 ClientHello is fragmented. (The server can't insist on the
1773 particular protocol version it has chosen before the ServerHello
1774 message has informed the client about his choice.)
1777 *) Load error codes if they are not already present instead of using a
1778 static variable. This allows them to be cleanly unloaded and reloaded.
1781 Changes between 0.9.7k and 0.9.7l [28 Sep 2006]
1783 *) Introduce limits to prevent malicious keys being able to
1784 cause a denial of service. (CVE-2006-2940)
1785 [Steve Henson, Bodo Moeller]
1787 *) Fix ASN.1 parsing of certain invalid structures that can result
1788 in a denial of service. (CVE-2006-2937) [Steve Henson]
1790 *) Fix buffer overflow in SSL_get_shared_ciphers() function.
1791 (CVE-2006-3738) [Tavis Ormandy and Will Drewry, Google Security Team]
1793 *) Fix SSL client code which could crash if connecting to a
1794 malicious SSLv2 server. (CVE-2006-4343)
1795 [Tavis Ormandy and Will Drewry, Google Security Team]
1797 *) Change ciphersuite string processing so that an explicit
1798 ciphersuite selects this one ciphersuite (so that "AES256-SHA"
1799 will no longer include "AES128-SHA"), and any other similar
1800 ciphersuite (same bitmap) from *other* protocol versions (so that
1801 "RC4-MD5" will still include both the SSL 2.0 ciphersuite and the
1802 SSL 3.0/TLS 1.0 ciphersuite). This is a backport combining
1803 changes from 0.9.8b and 0.9.8d.
1806 Changes between 0.9.7j and 0.9.7k [05 Sep 2006]
1808 *) Avoid PKCS #1 v1.5 signature attack discovered by Daniel Bleichenbacher
1809 (CVE-2006-4339) [Ben Laurie and Google Security Team]
1811 *) Change the Unix randomness entropy gathering to use poll() when
1812 possible instead of select(), since the latter has some
1813 undesirable limitations.
1814 [Darryl Miles via Richard Levitte and Bodo Moeller]
1816 *) Disable rogue ciphersuites:
1818 - SSLv2 0x08 0x00 0x80 ("RC4-64-MD5")
1819 - SSLv3/TLSv1 0x00 0x61 ("EXP1024-RC2-CBC-MD5")
1820 - SSLv3/TLSv1 0x00 0x60 ("EXP1024-RC4-MD5")
1822 The latter two were purportedly from
1823 draft-ietf-tls-56-bit-ciphersuites-0[01].txt, but do not really
1826 Also deactive the remaining ciphersuites from
1827 draft-ietf-tls-56-bit-ciphersuites-01.txt. These are just as
1828 unofficial, and the ID has long expired.
1831 *) Fix RSA blinding Heisenbug (problems sometimes occured on
1832 dual-core machines) and other potential thread-safety issues.
1835 Changes between 0.9.7i and 0.9.7j [04 May 2006]
1837 *) Adapt fipsld and the build system to link against the validated FIPS
1838 module in FIPS mode.
1841 *) Fixes for VC++ 2005 build under Windows.
1844 *) Add new Windows build target VC-32-GMAKE for VC++. This uses GNU make
1845 from a Windows bash shell such as MSYS. It is autodetected from the
1846 "config" script when run from a VC++ environment. Modify standard VC++
1847 build to use fipscanister.o from the GNU make build.
1850 Changes between 0.9.7h and 0.9.7i [14 Oct 2005]
1852 *) Wrapped the definition of EVP_MAX_MD_SIZE in a #ifdef OPENSSL_FIPS.
1853 The value now differs depending on if you build for FIPS or not.
1854 BEWARE! A program linked with a shared FIPSed libcrypto can't be
1855 safely run with a non-FIPSed libcrypto, as it may crash because of
1856 the difference induced by this change.
1859 Changes between 0.9.7g and 0.9.7h [11 Oct 2005]
1861 *) Remove the functionality of SSL_OP_MSIE_SSLV2_RSA_PADDING
1862 (part of SSL_OP_ALL). This option used to disable the
1863 countermeasure against man-in-the-middle protocol-version
1864 rollback in the SSL 2.0 server implementation, which is a bad
1865 idea. (CVE-2005-2969)
1867 [Bodo Moeller; problem pointed out by Yutaka Oiwa (Research Center
1868 for Information Security, National Institute of Advanced Industrial
1869 Science and Technology [AIST], Japan)]
1871 *) Minimal support for X9.31 signatures and PSS padding modes. This is
1872 mainly for FIPS compliance and not fully integrated at this stage.
1875 *) For DSA signing, unless DSA_FLAG_NO_EXP_CONSTTIME is set, perform
1876 the exponentiation using a fixed-length exponent. (Otherwise,
1877 the information leaked through timing could expose the secret key
1878 after many signatures; cf. Bleichenbacher's attack on DSA with
1882 *) Make a new fixed-window mod_exp implementation the default for
1883 RSA, DSA, and DH private-key operations so that the sequence of
1884 squares and multiplies and the memory access pattern are
1885 independent of the particular secret key. This will mitigate
1886 cache-timing and potential related attacks.
1888 BN_mod_exp_mont_consttime() is the new exponentiation implementation,
1889 and this is automatically used by BN_mod_exp_mont() if the new flag
1890 BN_FLG_EXP_CONSTTIME is set for the exponent. RSA, DSA, and DH
1891 will use this BN flag for private exponents unless the flag
1892 RSA_FLAG_NO_EXP_CONSTTIME, DSA_FLAG_NO_EXP_CONSTTIME, or
1893 DH_FLAG_NO_EXP_CONSTTIME, respectively, is set.
1895 [Matthew D Wood (Intel Corp), with some changes by Bodo Moeller]
1897 *) Change the client implementation for SSLv23_method() and
1898 SSLv23_client_method() so that is uses the SSL 3.0/TLS 1.0
1899 Client Hello message format if the SSL_OP_NO_SSLv2 option is set.
1900 (Previously, the SSL 2.0 backwards compatible Client Hello
1901 message format would be used even with SSL_OP_NO_SSLv2.)
1904 *) Add support for smime-type MIME parameter in S/MIME messages which some
1908 *) New function BN_MONT_CTX_set_locked() to set montgomery parameters in
1909 a threadsafe manner. Modify rsa code to use new function and add calls
1910 to dsa and dh code (which had race conditions before).
1913 *) Include the fixed error library code in the C error file definitions
1914 instead of fixing them up at runtime. This keeps the error code
1915 structures constant.
1918 Changes between 0.9.7f and 0.9.7g [11 Apr 2005]
1920 [NB: OpenSSL 0.9.7h and later 0.9.7 patch levels were released after
1923 *) Fixes for newer kerberos headers. NB: the casts are needed because
1924 the 'length' field is signed on one version and unsigned on another
1925 with no (?) obvious way to tell the difference, without these VC++
1926 complains. Also the "definition" of FAR (blank) is no longer included
1927 nor is the error ENOMEM. KRB5_PRIVATE has to be set to 1 to pick up
1928 some needed definitions.
1931 *) Undo Cygwin change.
1934 *) Added support for proxy certificates according to RFC 3820.
1935 Because they may be a security thread to unaware applications,
1936 they must be explicitely allowed in run-time. See
1937 docs/HOWTO/proxy_certificates.txt for further information.
1940 Changes between 0.9.7e and 0.9.7f [22 Mar 2005]
1942 *) Use (SSL_RANDOM_VALUE - 4) bytes of pseudo random data when generating
1943 server and client random values. Previously
1944 (SSL_RANDOM_VALUE - sizeof(time_t)) would be used which would result in
1945 less random data when sizeof(time_t) > 4 (some 64 bit platforms).
1947 This change has negligible security impact because:
1949 1. Server and client random values still have 24 bytes of pseudo random
1952 2. Server and client random values are sent in the clear in the initial
1955 3. The master secret is derived using the premaster secret (48 bytes in
1956 size for static RSA ciphersuites) as well as client server and random
1959 The OpenSSL team would like to thank the UK NISCC for bringing this issue
1962 [Stephen Henson, reported by UK NISCC]
1964 *) Use Windows randomness collection on Cygwin.
1967 *) Fix hang in EGD/PRNGD query when communication socket is closed
1968 prematurely by EGD/PRNGD.
1969 [Darren Tucker <dtucker@zip.com.au> via Lutz Jänicke, resolves #1014]
1971 *) Prompt for pass phrases when appropriate for PKCS12 input format.
1974 *) Back-port of selected performance improvements from development
1975 branch, as well as improved support for PowerPC platforms.
1978 *) Add lots of checks for memory allocation failure, error codes to indicate
1979 failure and freeing up memory if a failure occurs.
1980 [Nauticus Networks SSL Team <openssl@nauticusnet.com>, Steve Henson]
1982 *) Add new -passin argument to dgst.
1985 *) Perform some character comparisons of different types in X509_NAME_cmp:
1986 this is needed for some certificates that reencode DNs into UTF8Strings
1987 (in violation of RFC3280) and can't or wont issue name rollover
1991 *) Make an explicit check during certificate validation to see that
1992 the CA setting in each certificate on the chain is correct. As a
1993 side effect always do the following basic checks on extensions,
1994 not just when there's an associated purpose to the check:
1996 - if there is an unhandled critical extension (unless the user
1997 has chosen to ignore this fault)
1998 - if the path length has been exceeded (if one is set at all)
1999 - that certain extensions fit the associated purpose (if one has
2003 Changes between 0.9.7d and 0.9.7e [25 Oct 2004]
2005 *) Avoid a race condition when CRLs are checked in a multi threaded
2006 environment. This would happen due to the reordering of the revoked
2007 entries during signature checking and serial number lookup. Now the
2008 encoding is cached and the serial number sort performed under a lock.
2009 Add new STACK function sk_is_sorted().
2012 *) Add Delta CRL to the extension code.
2015 *) Various fixes to s3_pkt.c so alerts are sent properly.
2016 [David Holmes <d.holmes@f5.com>]
2018 *) Reduce the chances of duplicate issuer name and serial numbers (in
2019 violation of RFC3280) using the OpenSSL certificate creation utilities.
2020 This is done by creating a random 64 bit value for the initial serial
2021 number when a serial number file is created or when a self signed
2022 certificate is created using 'openssl req -x509'. The initial serial
2023 number file is created using 'openssl x509 -next_serial' in CA.pl
2024 rather than being initialized to 1.
2027 Changes between 0.9.7c and 0.9.7d [17 Mar 2004]
2029 *) Fix null-pointer assignment in do_change_cipher_spec() revealed
2030 by using the Codenomicon TLS Test Tool (CVE-2004-0079)
2031 [Joe Orton, Steve Henson]
2033 *) Fix flaw in SSL/TLS handshaking when using Kerberos ciphersuites
2035 [Joe Orton, Steve Henson]
2037 *) Make it possible to have multiple active certificates with the same
2038 subject in the CA index file. This is done only if the keyword
2039 'unique_subject' is set to 'no' in the main CA section (default
2040 if 'CA_default') of the configuration file. The value is saved
2041 with the database itself in a separate index attribute file,
2042 named like the index file with '.attr' appended to the name.
2045 *) X509 verify fixes. Disable broken certificate workarounds when
2046 X509_V_FLAGS_X509_STRICT is set. Check CRL issuer has cRLSign set if
2047 keyUsage extension present. Don't accept CRLs with unhandled critical
2048 extensions: since verify currently doesn't process CRL extensions this
2049 rejects a CRL with *any* critical extensions. Add new verify error codes
2053 *) When creating an OCSP nonce use an OCTET STRING inside the extnValue.
2054 A clarification of RFC2560 will require the use of OCTET STRINGs and
2055 some implementations cannot handle the current raw format. Since OpenSSL
2056 copies and compares OCSP nonces as opaque blobs without any attempt at
2057 parsing them this should not create any compatibility issues.
2060 *) New md flag EVP_MD_CTX_FLAG_REUSE this allows md_data to be reused when
2061 calling EVP_MD_CTX_copy_ex() to avoid calling OPENSSL_malloc(). Without
2062 this HMAC (and other) operations are several times slower than OpenSSL
2066 *) Print out GeneralizedTime and UTCTime in ASN1_STRING_print_ex().
2067 [Peter Sylvester <Peter.Sylvester@EdelWeb.fr>]
2069 *) Use the correct content when signing type "other".
2072 Changes between 0.9.7b and 0.9.7c [30 Sep 2003]
2074 *) Fix various bugs revealed by running the NISCC test suite:
2076 Stop out of bounds reads in the ASN1 code when presented with
2077 invalid tags (CVE-2003-0543 and CVE-2003-0544).
2079 Free up ASN1_TYPE correctly if ANY type is invalid (CVE-2003-0545).
2081 If verify callback ignores invalid public key errors don't try to check
2082 certificate signature with the NULL public key.
2086 *) New -ignore_err option in ocsp application to stop the server
2087 exiting on the first error in a request.
2090 *) In ssl3_accept() (ssl/s3_srvr.c) only accept a client certificate
2091 if the server requested one: as stated in TLS 1.0 and SSL 3.0
2095 *) In ssl3_get_client_hello() (ssl/s3_srvr.c), tolerate additional
2096 extra data after the compression methods not only for TLS 1.0
2097 but also for SSL 3.0 (as required by the specification).
2098 [Bodo Moeller; problem pointed out by Matthias Loepfe]
2100 *) Change X509_certificate_type() to mark the key as exported/exportable
2101 when it's 512 *bits* long, not 512 bytes.
2104 *) Change AES_cbc_encrypt() so it outputs exact multiple of
2105 blocks during encryption.
2108 *) Various fixes to base64 BIO and non blocking I/O. On write
2109 flushes were not handled properly if the BIO retried. On read
2110 data was not being buffered properly and had various logic bugs.
2111 This also affects blocking I/O when the data being decoded is a
2115 *) Various S/MIME bugfixes and compatibility changes:
2116 output correct application/pkcs7 MIME type if
2117 PKCS7_NOOLDMIMETYPE is set. Tolerate some broken signatures.
2118 Output CR+LF for EOL if PKCS7_CRLFEOL is set (this makes opening
2119 of files as .eml work). Correctly handle very long lines in MIME
2123 Changes between 0.9.7a and 0.9.7b [10 Apr 2003]
2125 *) Countermeasure against the Klima-Pokorny-Rosa extension of
2126 Bleichbacher's attack on PKCS #1 v1.5 padding: treat
2127 a protocol version number mismatch like a decryption error
2128 in ssl3_get_client_key_exchange (ssl/s3_srvr.c).
2131 *) Turn on RSA blinding by default in the default implementation
2132 to avoid a timing attack. Applications that don't want it can call
2133 RSA_blinding_off() or use the new flag RSA_FLAG_NO_BLINDING.
2134 They would be ill-advised to do so in most cases.
2135 [Ben Laurie, Steve Henson, Geoff Thorpe, Bodo Moeller]
2137 *) Change RSA blinding code so that it works when the PRNG is not
2138 seeded (in this case, the secret RSA exponent is abused as
2139 an unpredictable seed -- if it is not unpredictable, there
2140 is no point in blinding anyway). Make RSA blinding thread-safe
2141 by remembering the creator's thread ID in rsa->blinding and
2142 having all other threads use local one-time blinding factors
2143 (this requires more computation than sharing rsa->blinding, but
2144 avoids excessive locking; and if an RSA object is not shared
2145 between threads, blinding will still be very fast).
2148 *) Fixed a typo bug that would cause ENGINE_set_default() to set an
2149 ENGINE as defaults for all supported algorithms irrespective of
2150 the 'flags' parameter. 'flags' is now honoured, so applications
2151 should make sure they are passing it correctly.
2154 *) Target "mingw" now allows native Windows code to be generated in
2155 the Cygwin environment as well as with the MinGW compiler.
2158 Changes between 0.9.7 and 0.9.7a [19 Feb 2003]
2160 *) In ssl3_get_record (ssl/s3_pkt.c), minimize information leaked
2161 via timing by performing a MAC computation even if incorrrect
2162 block cipher padding has been found. This is a countermeasure
2163 against active attacks where the attacker has to distinguish
2164 between bad padding and a MAC verification error. (CVE-2003-0078)
2166 [Bodo Moeller; problem pointed out by Brice Canvel (EPFL),
2167 Alain Hiltgen (UBS), Serge Vaudenay (EPFL), and
2168 Martin Vuagnoux (EPFL, Ilion)]
2170 *) Make the no-err option work as intended. The intention with no-err
2171 is not to have the whole error stack handling routines removed from
2172 libcrypto, it's only intended to remove all the function name and
2173 reason texts, thereby removing some of the footprint that may not
2174 be interesting if those errors aren't displayed anyway.
2176 NOTE: it's still possible for any application or module to have it's
2177 own set of error texts inserted. The routines are there, just not
2178 used by default when no-err is given.
2181 *) Add support for FreeBSD on IA64.
2182 [dirk.meyer@dinoex.sub.org via Richard Levitte, resolves #454]
2184 *) Adjust DES_cbc_cksum() so it returns the same value as the MIT
2185 Kerberos function mit_des_cbc_cksum(). Before this change,
2186 the value returned by DES_cbc_cksum() was like the one from
2187 mit_des_cbc_cksum(), except the bytes were swapped.
2188 [Kevin Greaney <Kevin.Greaney@hp.com> and Richard Levitte]
2190 *) Allow an application to disable the automatic SSL chain building.
2191 Before this a rather primitive chain build was always performed in
2192 ssl3_output_cert_chain(): an application had no way to send the
2193 correct chain if the automatic operation produced an incorrect result.
2195 Now the chain builder is disabled if either:
2197 1. Extra certificates are added via SSL_CTX_add_extra_chain_cert().
2199 2. The mode flag SSL_MODE_NO_AUTO_CHAIN is set.
2201 The reasoning behind this is that an application would not want the
2202 auto chain building to take place if extra chain certificates are
2203 present and it might also want a means of sending no additional
2204 certificates (for example the chain has two certificates and the
2208 *) Add the possibility to build without the ENGINE framework.
2209 [Steven Reddie <smr@essemer.com.au> via Richard Levitte]
2211 *) Under Win32 gmtime() can return NULL: check return value in
2212 OPENSSL_gmtime(). Add error code for case where gmtime() fails.
2215 *) DSA routines: under certain error conditions uninitialized BN objects
2216 could be freed. Solution: make sure initialization is performed early
2217 enough. (Reported and fix supplied by Ivan D Nestlerode <nestler@MIT.EDU>,
2218 Nils Larsch <nla@trustcenter.de> via PR#459)
2221 *) Another fix for SSLv2 session ID handling: the session ID was incorrectly
2222 checked on reconnect on the client side, therefore session resumption
2223 could still fail with a "ssl session id is different" error. This
2224 behaviour is masked when SSL_OP_ALL is used due to
2225 SSL_OP_MICROSOFT_SESS_ID_BUG being set.
2226 Behaviour observed by Crispin Flowerday <crispin@flowerday.cx> as
2227 followup to PR #377.
2230 *) IA-32 assembler support enhancements: unified ELF targets, support
2231 for SCO/Caldera platforms, fix for Cygwin shared build.
2234 *) Add support for FreeBSD on sparc64. As a consequence, support for
2235 FreeBSD on non-x86 processors is separate from x86 processors on
2236 the config script, much like the NetBSD support.
2237 [Richard Levitte & Kris Kennaway <kris@obsecurity.org>]
2239 Changes between 0.9.6h and 0.9.7 [31 Dec 2002]
2241 [NB: OpenSSL 0.9.6i and later 0.9.6 patch levels were released after
2244 *) Fix session ID handling in SSLv2 client code: the SERVER FINISHED
2245 code (06) was taken as the first octet of the session ID and the last
2246 octet was ignored consequently. As a result SSLv2 client side session
2247 caching could not have worked due to the session ID mismatch between
2249 Behaviour observed by Crispin Flowerday <crispin@flowerday.cx> as
2253 *) Change the declaration of needed Kerberos libraries to use EX_LIBS
2254 instead of the special (and badly supported) LIBKRB5. LIBKRB5 is
2258 *) The hw_ncipher.c engine requires dynamic locks. Unfortunately, it
2259 seems that in spite of existing for more than a year, many application
2260 author have done nothing to provide the necessary callbacks, which
2261 means that this particular engine will not work properly anywhere.
2262 This is a very unfortunate situation which forces us, in the name
2263 of usability, to give the hw_ncipher.c a static lock, which is part
2265 NOTE: This is for the 0.9.7 series ONLY. This hack will never
2266 appear in 0.9.8 or later. We EXPECT application authors to have
2267 dealt properly with this when 0.9.8 is released (unless we actually
2268 make such changes in the libcrypto locking code that changes will
2269 have to be made anyway).
2272 *) In asn1_d2i_read_bio() repeatedly call BIO_read() until all content
2273 octets have been read, EOF or an error occurs. Without this change
2274 some truncated ASN1 structures will not produce an error.
2277 *) Disable Heimdal support, since it hasn't been fully implemented.
2278 Still give the possibility to force the use of Heimdal, but with
2279 warnings and a request that patches get sent to openssl-dev.
2282 *) Add the VC-CE target, introduce the WINCE sysname, and add
2283 INSTALL.WCE and appropriate conditionals to make it build.
2284 [Steven Reddie <smr@essemer.com.au> via Richard Levitte]
2286 *) Change the DLL names for Cygwin to cygcrypto-x.y.z.dll and
2287 cygssl-x.y.z.dll, where x, y and z are the major, minor and
2288 edit numbers of the version.
2289 [Corinna Vinschen <vinschen@redhat.com> and Richard Levitte]
2291 *) Introduce safe string copy and catenation functions
2292 (BUF_strlcpy() and BUF_strlcat()).
2293 [Ben Laurie (CHATS) and Richard Levitte]
2295 *) Avoid using fixed-size buffers for one-line DNs.
2296 [Ben Laurie (CHATS)]
2298 *) Add BUF_MEM_grow_clean() to avoid information leakage when
2299 resizing buffers containing secrets, and use where appropriate.
2300 [Ben Laurie (CHATS)]
2302 *) Avoid using fixed size buffers for configuration file location.
2303 [Ben Laurie (CHATS)]
2305 *) Avoid filename truncation for various CA files.
2306 [Ben Laurie (CHATS)]
2308 *) Use sizeof in preference to magic numbers.
2309 [Ben Laurie (CHATS)]
2311 *) Avoid filename truncation in cert requests.
2312 [Ben Laurie (CHATS)]
2314 *) Add assertions to check for (supposedly impossible) buffer
2316 [Ben Laurie (CHATS)]
2318 *) Don't cache truncated DNS entries in the local cache (this could
2319 potentially lead to a spoofing attack).
2320 [Ben Laurie (CHATS)]
2322 *) Fix various buffers to be large enough for hex/decimal
2323 representations in a platform independent manner.
2324 [Ben Laurie (CHATS)]
2326 *) Add CRYPTO_realloc_clean() to avoid information leakage when
2327 resizing buffers containing secrets, and use where appropriate.
2328 [Ben Laurie (CHATS)]
2330 *) Add BIO_indent() to avoid much slightly worrying code to do
2332 [Ben Laurie (CHATS)]
2334 *) Convert sprintf()/BIO_puts() to BIO_printf().
2335 [Ben Laurie (CHATS)]
2337 *) buffer_gets() could terminate with the buffer only half
2339 [Ben Laurie (CHATS)]
2341 *) Add assertions to prevent user-supplied crypto functions from
2342 overflowing internal buffers by having large block sizes, etc.
2343 [Ben Laurie (CHATS)]
2345 *) New OPENSSL_assert() macro (similar to assert(), but enabled
2347 [Ben Laurie (CHATS)]
2349 *) Eliminate unused copy of key in RC4.
2350 [Ben Laurie (CHATS)]
2352 *) Eliminate unused and incorrectly sized buffers for IV in pem.h.
2353 [Ben Laurie (CHATS)]
2355 *) Fix off-by-one error in EGD path.
2356 [Ben Laurie (CHATS)]
2358 *) If RANDFILE path is too long, ignore instead of truncating.
2359 [Ben Laurie (CHATS)]
2361 *) Eliminate unused and incorrectly sized X.509 structure
2363 [Ben Laurie (CHATS)]
2365 *) Eliminate unused and dangerous function knumber().
2366 [Ben Laurie (CHATS)]
2368 *) Eliminate unused and dangerous structure, KSSL_ERR.
2369 [Ben Laurie (CHATS)]
2371 *) Protect against overlong session ID context length in an encoded
2372 session object. Since these are local, this does not appear to be
2374 [Ben Laurie (CHATS)]
2376 *) Change from security patch (see 0.9.6e below) that did not affect
2377 the 0.9.6 release series:
2379 Remote buffer overflow in SSL3 protocol - an attacker could
2380 supply an oversized master key in Kerberos-enabled versions.
2382 [Ben Laurie (CHATS)]
2384 *) Change the SSL kerb5 codes to match RFC 2712.
2387 *) Make -nameopt work fully for req and add -reqopt switch.
2388 [Michael Bell <michael.bell@rz.hu-berlin.de>, Steve Henson]
2390 *) The "block size" for block ciphers in CFB and OFB mode should be 1.
2391 [Steve Henson, reported by Yngve Nysaeter Pettersen <yngve@opera.com>]
2393 *) Make sure tests can be performed even if the corresponding algorithms
2394 have been removed entirely. This was also the last step to make
2395 OpenSSL compilable with DJGPP under all reasonable conditions.
2396 [Richard Levitte, Doug Kaufman <dkaufman@rahul.net>]
2398 *) Add cipher selection rules COMPLEMENTOFALL and COMPLEMENTOFDEFAULT
2399 to allow version independent disabling of normally unselected ciphers,
2400 which may be activated as a side-effect of selecting a single cipher.
2402 (E.g., cipher list string "RSA" enables ciphersuites that are left
2403 out of "ALL" because they do not provide symmetric encryption.
2404 "RSA:!COMPLEMEMENTOFALL" avoids these unsafe ciphersuites.)
2405 [Lutz Jaenicke, Bodo Moeller]
2407 *) Add appropriate support for separate platform-dependent build
2408 directories. The recommended way to make a platform-dependent
2409 build directory is the following (tested on Linux), maybe with
2412 # Place yourself outside of the OpenSSL source tree. In
2413 # this example, the environment variable OPENSSL_SOURCE
2414 # is assumed to contain the absolute OpenSSL source directory.
2415 mkdir -p objtree/"`uname -s`-`uname -r`-`uname -m`"
2416 cd objtree/"`uname -s`-`uname -r`-`uname -m`"
2417 (cd $OPENSSL_SOURCE; find . -type f) | while read F; do
2418 mkdir -p `dirname $F`
2419 ln -s $OPENSSL_SOURCE/$F $F
2422 To be absolutely sure not to disturb the source tree, a "make clean"
2423 is a good thing. If it isn't successfull, don't worry about it,
2424 it probably means the source directory is very clean.
2427 *) Make sure any ENGINE control commands make local copies of string
2428 pointers passed to them whenever necessary. Otherwise it is possible
2429 the caller may have overwritten (or deallocated) the original string
2430 data when a later ENGINE operation tries to use the stored values.
2431 [Götz Babin-Ebell <babinebell@trustcenter.de>]
2433 *) Improve diagnostics in file reading and command-line digests.
2434 [Ben Laurie aided and abetted by Solar Designer <solar@openwall.com>]
2436 *) Add AES modes CFB and OFB to the object database. Correct an
2437 error in AES-CFB decryption.
2440 *) Remove most calls to EVP_CIPHER_CTX_cleanup() in evp_enc.c, this
2441 allows existing EVP_CIPHER_CTX structures to be reused after
2442 calling EVP_*Final(). This behaviour is used by encryption
2443 BIOs and some applications. This has the side effect that
2444 applications must explicitly clean up cipher contexts with
2445 EVP_CIPHER_CTX_cleanup() or they will leak memory.
2448 *) Check the values of dna and dnb in bn_mul_recursive before calling
2449 bn_mul_comba (a non zero value means the a or b arrays do not contain
2450 n2 elements) and fallback to bn_mul_normal if either is not zero.
2453 *) Fix escaping of non-ASCII characters when using the -subj option
2454 of the "openssl req" command line tool. (Robert Joop <joop@fokus.gmd.de>)
2457 *) Make object definitions compliant to LDAP (RFC2256): SN is the short
2458 form for "surname", serialNumber has no short form.
2459 Use "mail" as the short name for "rfc822Mailbox" according to RFC2798;
2460 therefore remove "mail" short name for "internet 7".
2461 The OID for unique identifiers in X509 certificates is
2462 x500UniqueIdentifier, not uniqueIdentifier.
2463 Some more OID additions. (Michael Bell <michael.bell@rz.hu-berlin.de>)
2466 *) Add an "init" command to the ENGINE config module and auto initialize
2467 ENGINEs. Without any "init" command the ENGINE will be initialized
2468 after all ctrl commands have been executed on it. If init=1 the
2469 ENGINE is initailized at that point (ctrls before that point are run
2470 on the uninitialized ENGINE and after on the initialized one). If
2471 init=0 then the ENGINE will not be iniatialized at all.
2474 *) Fix the 'app_verify_callback' interface so that the user-defined
2475 argument is actually passed to the callback: In the
2476 SSL_CTX_set_cert_verify_callback() prototype, the callback
2477 declaration has been changed from
2480 int (*cb)(X509_STORE_CTX *,void *);
2481 in ssl_verify_cert_chain (ssl/ssl_cert.c), the call
2482 i=s->ctx->app_verify_callback(&ctx)
2483 has been changed into
2484 i=s->ctx->app_verify_callback(&ctx, s->ctx->app_verify_arg).
2486 To update applications using SSL_CTX_set_cert_verify_callback(),
2487 a dummy argument can be added to their callback functions.
2488 [D. K. Smetters <smetters@parc.xerox.com>]
2490 *) Added the '4758cca' ENGINE to support IBM 4758 cards.
2491 [Maurice Gittens <maurice@gittens.nl>, touchups by Geoff Thorpe]
2493 *) Add and OPENSSL_LOAD_CONF define which will cause
2494 OpenSSL_add_all_algorithms() to load the openssl.cnf config file.
2495 This allows older applications to transparently support certain
2496 OpenSSL features: such as crypto acceleration and dynamic ENGINE loading.
2497 Two new functions OPENSSL_add_all_algorithms_noconf() which will never
2498 load the config file and OPENSSL_add_all_algorithms_conf() which will
2499 always load it have also been added.
2502 *) Add the OFB, CFB and CTR (all with 128 bit feedback) to AES.
2503 Adjust NIDs and EVP layer.
2504 [Stephen Sprunk <stephen@sprunk.org> and Richard Levitte]
2506 *) Config modules support in openssl utility.
2508 Most commands now load modules from the config file,
2509 though in a few (such as version) this isn't done
2510 because it couldn't be used for anything.
2512 In the case of ca and req the config file used is
2513 the same as the utility itself: that is the -config
2514 command line option can be used to specify an
2518 *) Move default behaviour from OPENSSL_config(). If appname is NULL
2519 use "openssl_conf" if filename is NULL use default openssl config file.
2522 *) Add an argument to OPENSSL_config() to allow the use of an alternative
2523 config section name. Add a new flag to tolerate a missing config file
2524 and move code to CONF_modules_load_file().
2527 *) Support for crypto accelerator cards from Accelerated Encryption
2528 Processing, www.aep.ie. (Use engine 'aep')
2529 The support was copied from 0.9.6c [engine] and adapted/corrected
2530 to work with the new engine framework.
2531 [AEP Inc. and Richard Levitte]
2533 *) Support for SureWare crypto accelerator cards from Baltimore
2534 Technologies. (Use engine 'sureware')
2535 The support was copied from 0.9.6c [engine] and adapted
2536 to work with the new engine framework.
2539 *) Have the CHIL engine fork-safe (as defined by nCipher) and actually
2540 make the newer ENGINE framework commands for the CHIL engine work.
2541 [Toomas Kiisk <vix@cyber.ee> and Richard Levitte]
2543 *) Make it possible to produce shared libraries on ReliantUNIX.
2544 [Robert Dahlem <Robert.Dahlem@ffm2.siemens.de> via Richard Levitte]
2546 *) Add the configuration target debug-linux-ppro.
2547 Make 'openssl rsa' use the general key loading routines
2548 implemented in apps.c, and make those routines able to
2549 handle the key format FORMAT_NETSCAPE and the variant
2551 [Toomas Kiisk <vix@cyber.ee> via Richard Levitte]
2553 *) Fix a crashbug and a logic bug in hwcrhk_load_pubkey().
2554 [Toomas Kiisk <vix@cyber.ee> via Richard Levitte]
2556 *) Add -keyform to rsautl, and document -engine.
2557 [Richard Levitte, inspired by Toomas Kiisk <vix@cyber.ee>]
2559 *) Change BIO_new_file (crypto/bio/bss_file.c) to use new
2560 BIO_R_NO_SUCH_FILE error code rather than the generic
2561 ERR_R_SYS_LIB error code if fopen() fails with ENOENT.
2564 *) Add new functions
2566 ERR_peek_last_error_line
2567 ERR_peek_last_error_line_data.
2568 These are similar to
2571 ERR_peek_error_line_data,
2572 but report on the latest error recorded rather than the first one
2573 still in the error queue.
2574 [Ben Laurie, Bodo Moeller]
2576 *) default_algorithms option in ENGINE config module. This allows things
2578 default_algorithms = ALL
2579 default_algorithms = RSA, DSA, RAND, CIPHERS, DIGESTS
2582 *) Prelminary ENGINE config module.
2585 *) New experimental application configuration code.
2588 *) Change the AES code to follow the same name structure as all other
2589 symmetric ciphers, and behave the same way. Move everything to
2590 the directory crypto/aes, thereby obsoleting crypto/rijndael.
2591 [Stephen Sprunk <stephen@sprunk.org> and Richard Levitte]
2593 *) SECURITY: remove unsafe setjmp/signal interaction from ui_openssl.c.
2594 [Ben Laurie and Theo de Raadt]
2596 *) Add option to output public keys in req command.
2597 [Massimiliano Pala madwolf@openca.org]
2599 *) Use wNAFs in EC_POINTs_mul() for improved efficiency
2600 (up to about 10% better than before for P-192 and P-224).
2603 *) New functions/macros
2605 SSL_CTX_set_msg_callback(ctx, cb)
2606 SSL_CTX_set_msg_callback_arg(ctx, arg)
2607 SSL_set_msg_callback(ssl, cb)
2608 SSL_set_msg_callback_arg(ssl, arg)
2610 to request calling a callback function
2612 void cb(int write_p, int version, int content_type,
2613 const void *buf, size_t len, SSL *ssl, void *arg)
2615 whenever a protocol message has been completely received
2616 (write_p == 0) or sent (write_p == 1). Here 'version' is the
2617 protocol version according to which the SSL library interprets
2618 the current protocol message (SSL2_VERSION, SSL3_VERSION, or
2619 TLS1_VERSION). 'content_type' is 0 in the case of SSL 2.0, or
2620 the content type as defined in the SSL 3.0/TLS 1.0 protocol
2621 specification (change_cipher_spec(20), alert(21), handshake(22)).
2622 'buf' and 'len' point to the actual message, 'ssl' to the
2623 SSL object, and 'arg' is the application-defined value set by
2624 SSL[_CTX]_set_msg_callback_arg().
2626 'openssl s_client' and 'openssl s_server' have new '-msg' options
2627 to enable a callback that displays all protocol messages.
2630 *) Change the shared library support so shared libraries are built as
2631 soon as the corresponding static library is finished, and thereby get
2632 openssl and the test programs linked against the shared library.
2633 This still only happens when the keyword "shard" has been given to
2634 the configuration scripts.
2636 NOTE: shared library support is still an experimental thing, and
2637 backward binary compatibility is still not guaranteed.
2638 ["Maciej W. Rozycki" <macro@ds2.pg.gda.pl> and Richard Levitte]
2640 *) Add support for Subject Information Access extension.
2641 [Peter Sylvester <Peter.Sylvester@EdelWeb.fr>]
2643 *) Make BUF_MEM_grow() behaviour more consistent: Initialise to zero
2644 additional bytes when new memory had to be allocated, not just
2645 when reusing an existing buffer.
2648 *) New command line and configuration option 'utf8' for the req command.
2649 This allows field values to be specified as UTF8 strings.
2652 *) Add -multi and -mr options to "openssl speed" - giving multiple parallel
2653 runs for the former and machine-readable output for the latter.
2656 *) Add '-noemailDN' option to 'openssl ca'. This prevents inclusion
2657 of the e-mail address in the DN (i.e., it will go into a certificate
2658 extension only). The new configuration file option 'email_in_dn = no'
2659 has the same effect.
2660 [Massimiliano Pala madwolf@openca.org]
2662 *) Change all functions with names starting with des_ to be starting
2663 with DES_ instead. Add wrappers that are compatible with libdes,
2664 but are named _ossl_old_des_*. Finally, add macros that map the
2665 des_* symbols to the corresponding _ossl_old_des_* if libdes
2666 compatibility is desired. If OpenSSL 0.9.6c compatibility is
2667 desired, the des_* symbols will be mapped to DES_*, with one
2670 Since we provide two compatibility mappings, the user needs to
2671 define the macro OPENSSL_DES_LIBDES_COMPATIBILITY if libdes
2672 compatibility is desired. The default (i.e., when that macro
2673 isn't defined) is OpenSSL 0.9.6c compatibility.
2675 There are also macros that enable and disable the support of old
2676 des functions altogether. Those are OPENSSL_ENABLE_OLD_DES_SUPPORT
2677 and OPENSSL_DISABLE_OLD_DES_SUPPORT. If none or both of those
2678 are defined, the default will apply: to support the old des routines.
2680 In either case, one must include openssl/des.h to get the correct
2681 definitions. Do not try to just include openssl/des_old.h, that
2684 NOTE: This is a major break of an old API into a new one. Software
2685 authors are encouraged to switch to the DES_ style functions. Some
2686 time in the future, des_old.h and the libdes compatibility functions
2687 will be disable (i.e. OPENSSL_DISABLE_OLD_DES_SUPPORT will be the
2688 default), and then completely removed.
2691 *) Test for certificates which contain unsupported critical extensions.
2692 If such a certificate is found during a verify operation it is
2693 rejected by default: this behaviour can be overridden by either
2694 handling the new error X509_V_ERR_UNHANDLED_CRITICAL_EXTENSION or
2695 by setting the verify flag X509_V_FLAG_IGNORE_CRITICAL. A new function
2696 X509_supported_extension() has also been added which returns 1 if a
2697 particular extension is supported.
2700 *) Modify the behaviour of EVP cipher functions in similar way to digests
2701 to retain compatibility with existing code.
2704 *) Modify the behaviour of EVP_DigestInit() and EVP_DigestFinal() to retain
2705 compatibility with existing code. In particular the 'ctx' parameter does
2706 not have to be to be initialized before the call to EVP_DigestInit() and
2707 it is tidied up after a call to EVP_DigestFinal(). New function
2708 EVP_DigestFinal_ex() which does not tidy up the ctx. Similarly function
2709 EVP_MD_CTX_copy() changed to not require the destination to be
2710 initialized valid and new function EVP_MD_CTX_copy_ex() added which
2711 requires the destination to be valid.
2713 Modify all the OpenSSL digest calls to use EVP_DigestInit_ex(),
2714 EVP_DigestFinal_ex() and EVP_MD_CTX_copy_ex().
2717 *) Change ssl3_get_message (ssl/s3_both.c) and the functions using it
2718 so that complete 'Handshake' protocol structures are kept in memory
2719 instead of overwriting 'msg_type' and 'length' with 'body' data.
2722 *) Add an implementation of SSL_add_dir_cert_subjects_to_stack for Win32.
2723 [Massimo Santin via Richard Levitte]
2725 *) Major restructuring to the underlying ENGINE code. This includes
2726 reduction of linker bloat, separation of pure "ENGINE" manipulation
2727 (initialisation, etc) from functionality dealing with implementations
2728 of specific crypto iterfaces. This change also introduces integrated
2729 support for symmetric ciphers and digest implementations - so ENGINEs
2730 can now accelerate these by providing EVP_CIPHER and EVP_MD
2731 implementations of their own. This is detailed in crypto/engine/README
2732 as it couldn't be adequately described here. However, there are a few
2733 API changes worth noting - some RSA, DSA, DH, and RAND functions that
2734 were changed in the original introduction of ENGINE code have now
2735 reverted back - the hooking from this code to ENGINE is now a good
2736 deal more passive and at run-time, operations deal directly with
2737 RSA_METHODs, DSA_METHODs (etc) as they did before, rather than
2738 dereferencing through an ENGINE pointer any more. Also, the ENGINE
2739 functions dealing with BN_MOD_EXP[_CRT] handlers have been removed -
2740 they were not being used by the framework as there is no concept of a
2741 BIGNUM_METHOD and they could not be generalised to the new
2742 'ENGINE_TABLE' mechanism that underlies the new code. Similarly,
2743 ENGINE_cpy() has been removed as it cannot be consistently defined in
2747 *) Change ASN1_GENERALIZEDTIME_check() to allow fractional seconds.
2750 *) Change mkdef.pl to sort symbols that get the same entry number,
2751 and make sure the automatically generated functions ERR_load_*
2752 become part of libeay.num as well.
2755 *) New function SSL_renegotiate_pending(). This returns true once
2756 renegotiation has been requested (either SSL_renegotiate() call
2757 or HelloRequest/ClientHello receveived from the peer) and becomes
2758 false once a handshake has been completed.
2759 (For servers, SSL_renegotiate() followed by SSL_do_handshake()
2760 sends a HelloRequest, but does not ensure that a handshake takes
2761 place. SSL_renegotiate_pending() is useful for checking if the
2762 client has followed the request.)
2765 *) New SSL option SSL_OP_NO_SESSION_RESUMPTION_ON_RENEGOTIATION.
2766 By default, clients may request session resumption even during
2767 renegotiation (if session ID contexts permit); with this option,
2768 session resumption is possible only in the first handshake.
2770 SSL_OP_ALL is now 0x00000FFFL instead of 0x000FFFFFL. This makes
2771 more bits available for options that should not be part of
2772 SSL_OP_ALL (such as SSL_OP_NO_SESSION_RESUMPTION_ON_RENEGOTIATION).
2775 *) Add some demos for certificate and certificate request creation.
2778 *) Make maximum certificate chain size accepted from the peer application
2779 settable (SSL*_get/set_max_cert_list()), as proposed by
2780 "Douglas E. Engert" <deengert@anl.gov>.
2783 *) Add support for shared libraries for Unixware-7
2784 (Boyd Lynn Gerber <gerberb@zenez.com>).
2787 *) Add a "destroy" handler to ENGINEs that allows structural cleanup to
2788 be done prior to destruction. Use this to unload error strings from
2789 ENGINEs that load their own error strings. NB: This adds two new API
2790 functions to "get" and "set" this destroy handler in an ENGINE.
2793 *) Alter all existing ENGINE implementations (except "openssl" and
2794 "openbsd") to dynamically instantiate their own error strings. This
2795 makes them more flexible to be built both as statically-linked ENGINEs
2796 and self-contained shared-libraries loadable via the "dynamic" ENGINE.
2797 Also, add stub code to each that makes building them as self-contained
2798 shared-libraries easier (see README.ENGINE).
2801 *) Add a "dynamic" ENGINE that provides a mechanism for binding ENGINE
2802 implementations into applications that are completely implemented in
2803 self-contained shared-libraries. The "dynamic" ENGINE exposes control
2804 commands that can be used to configure what shared-library to load and
2805 to control aspects of the way it is handled. Also, made an update to
2806 the README.ENGINE file that brings its information up-to-date and
2807 provides some information and instructions on the "dynamic" ENGINE
2808 (ie. how to use it, how to build "dynamic"-loadable ENGINEs, etc).
2811 *) Make it possible to unload ranges of ERR strings with a new
2812 "ERR_unload_strings" function.
2815 *) Add a copy() function to EVP_MD.
2818 *) Make EVP_MD routines take a context pointer instead of just the
2819 md_data void pointer.
2822 *) Add flags to EVP_MD and EVP_MD_CTX. EVP_MD_FLAG_ONESHOT indicates
2823 that the digest can only process a single chunk of data
2824 (typically because it is provided by a piece of
2825 hardware). EVP_MD_CTX_FLAG_ONESHOT indicates that the application
2826 is only going to provide a single chunk of data, and hence the
2827 framework needn't accumulate the data for oneshot drivers.
2830 *) As with "ERR", make it possible to replace the underlying "ex_data"
2831 functions. This change also alters the storage and management of global
2832 ex_data state - it's now all inside ex_data.c and all "class" code (eg.
2833 RSA, BIO, SSL_CTX, etc) no longer stores its own STACKS and per-class
2834 index counters. The API functions that use this state have been changed
2835 to take a "class_index" rather than pointers to the class's local STACK
2836 and counter, and there is now an API function to dynamically create new
2837 classes. This centralisation allows us to (a) plug a lot of the
2838 thread-safety problems that existed, and (b) makes it possible to clean
2839 up all allocated state using "CRYPTO_cleanup_all_ex_data()". W.r.t. (b)
2840 such data would previously have always leaked in application code and
2841 workarounds were in place to make the memory debugging turn a blind eye
2842 to it. Application code that doesn't use this new function will still
2843 leak as before, but their memory debugging output will announce it now
2844 rather than letting it slide.
2846 Besides the addition of CRYPTO_cleanup_all_ex_data(), another API change
2847 induced by the "ex_data" overhaul is that X509_STORE_CTX_init() now
2848 has a return value to indicate success or failure.
2851 *) Make it possible to replace the underlying "ERR" functions such that the
2852 global state (2 LHASH tables and 2 locks) is only used by the "default"
2853 implementation. This change also adds two functions to "get" and "set"
2854 the implementation prior to it being automatically set the first time
2855 any other ERR function takes place. Ie. an application can call "get",
2856 pass the return value to a module it has just loaded, and that module
2857 can call its own "set" function using that value. This means the
2858 module's "ERR" operations will use (and modify) the error state in the
2859 application and not in its own statically linked copy of OpenSSL code.
2862 *) Give DH, DSA, and RSA types their own "**_up_ref()" function to increment
2863 reference counts. This performs normal REF_PRINT/REF_CHECK macros on
2864 the operation, and provides a more encapsulated way for external code
2865 (crypto/evp/ and ssl/) to do this. Also changed the evp and ssl code
2866 to use these functions rather than manually incrementing the counts.
2868 Also rename "DSO_up()" function to more descriptive "DSO_up_ref()".
2871 *) Add EVP test program.
2874 *) Add symmetric cipher support to ENGINE. Expect the API to change!
2877 *) New CRL functions: X509_CRL_set_version(), X509_CRL_set_issuer_name()
2878 X509_CRL_set_lastUpdate(), X509_CRL_set_nextUpdate(), X509_CRL_sort(),
2879 X509_REVOKED_set_serialNumber(), and X509_REVOKED_set_revocationDate().
2880 These allow a CRL to be built without having to access X509_CRL fields
2881 directly. Modify 'ca' application to use new functions.
2884 *) Move SSL_OP_TLS_ROLLBACK_BUG out of the SSL_OP_ALL list of recommended
2885 bug workarounds. Rollback attack detection is a security feature.
2886 The problem will only arise on OpenSSL servers when TLSv1 is not
2887 available (sslv3_server_method() or SSL_OP_NO_TLSv1).
2888 Software authors not wanting to support TLSv1 will have special reasons
2889 for their choice and can explicitly enable this option.
2890 [Bodo Moeller, Lutz Jaenicke]
2892 *) Rationalise EVP so it can be extended: don't include a union of
2893 cipher/digest structures, add init/cleanup functions for EVP_MD_CTX
2894 (similar to those existing for EVP_CIPHER_CTX).
2899 EVP_MD_CTX_init(&md); /* new function call */
2900 EVP_DigestInit(&md, EVP_sha1());
2901 EVP_DigestUpdate(&md, in, len);
2902 EVP_DigestFinal(&md, out, NULL);
2903 EVP_MD_CTX_cleanup(&md); /* new function call */
2907 *) Make DES key schedule conform to the usual scheme, as well as
2908 correcting its structure. This means that calls to DES functions
2909 now have to pass a pointer to a des_key_schedule instead of a
2910 plain des_key_schedule (which was actually always a pointer
2913 des_key_schedule ks;
2915 des_set_key_checked(..., &ks);
2916 des_ncbc_encrypt(..., &ks, ...);
2918 (Note that a later change renames 'des_...' into 'DES_...'.)
2921 *) Initial reduction of linker bloat: the use of some functions, such as
2922 PEM causes large amounts of unused functions to be linked in due to
2923 poor organisation. For example pem_all.c contains every PEM function
2924 which has a knock on effect of linking in large amounts of (unused)
2925 ASN1 code. Grouping together similar functions and splitting unrelated
2926 functions prevents this.
2929 *) Cleanup of EVP macros.
2932 *) Change historical references to {NID,SN,LN}_des_ede and ede3 to add the
2933 correct _ecb suffix.
2936 *) Add initial OCSP responder support to ocsp application. The
2937 revocation information is handled using the text based index
2938 use by the ca application. The responder can either handle
2939 requests generated internally, supplied in files (for example
2940 via a CGI script) or using an internal minimal server.
2943 *) Add configuration choices to get zlib compression for TLS.
2946 *) Changes to Kerberos SSL for RFC 2712 compliance:
2947 1. Implemented real KerberosWrapper, instead of just using
2948 KRB5 AP_REQ message. [Thanks to Simon Wilkinson <sxw@sxw.org.uk>]
2949 2. Implemented optional authenticator field of KerberosWrapper.
2951 Added openssl-style ASN.1 macros for Kerberos ticket, ap_req,
2952 and authenticator structs; see crypto/krb5/.
2954 Generalized Kerberos calls to support multiple Kerberos libraries.
2955 [Vern Staats <staatsvr@asc.hpc.mil>,
2956 Jeffrey Altman <jaltman@columbia.edu>
2957 via Richard Levitte]
2959 *) Cause 'openssl speed' to use fully hard-coded DSA keys as it
2960 already does with RSA. testdsa.h now has 'priv_key/pub_key'
2961 values for each of the key sizes rather than having just
2962 parameters (and 'speed' generating keys each time).
2965 *) Speed up EVP routines.
2968 type 8 bytes 64 bytes 256 bytes 1024 bytes 8192 bytes
2969 des-cbc 4408.85k 5560.51k 5778.46k 5862.20k 5825.16k
2970 des-cbc 4389.55k 5571.17k 5792.23k 5846.91k 5832.11k
2971 des-cbc 4394.32k 5575.92k 5807.44k 5848.37k 5841.30k
2973 des-cbc 3482.66k 5069.49k 5496.39k 5614.16k 5639.28k
2974 des-cbc 3480.74k 5068.76k 5510.34k 5609.87k 5635.52k
2975 des-cbc 3483.72k 5067.62k 5504.60k 5708.01k 5724.80k
2978 des-cbc 4660.16k 5650.19k 5807.19k 5827.13k 5783.32k
2980 des-cbc 3624.96k 5258.21k 5530.91k 5624.30k 5628.26k
2983 *) Added the OS2-EMX target.
2984 ["Brian Havard" <brianh@kheldar.apana.org.au> and Richard Levitte]
2986 *) Rewrite apps to use NCONF routines instead of the old CONF. New functions
2987 to support NCONF routines in extension code. New function CONF_set_nconf()
2988 to allow functions which take an NCONF to also handle the old LHASH
2989 structure: this means that the old CONF compatible routines can be
2990 retained (in particular wrt extensions) without having to duplicate the
2991 code. New function X509V3_add_ext_nconf_sk to add extensions to a stack.
2994 *) Enhance the general user interface with mechanisms for inner control
2995 and with possibilities to have yes/no kind of prompts.
2998 *) Change all calls to low level digest routines in the library and
2999 applications to use EVP. Add missing calls to HMAC_cleanup() and
3000 don't assume HMAC_CTX can be copied using memcpy().
3001 [Verdon Walker <VWalker@novell.com>, Steve Henson]
3003 *) Add the possibility to control engines through control names but with
3004 arbitrary arguments instead of just a string.
3005 Change the key loaders to take a UI_METHOD instead of a callback
3006 function pointer. NOTE: this breaks binary compatibility with earlier
3007 versions of OpenSSL [engine].
3008 Adapt the nCipher code for these new conditions and add a card insertion
3012 *) Enhance the general user interface with mechanisms to better support
3013 dialog box interfaces, application-defined prompts, the possibility
3014 to use defaults (for example default passwords from somewhere else)
3015 and interrupts/cancellations.
3018 *) Tidy up PKCS#12 attribute handling. Add support for the CSP name
3019 attribute in PKCS#12 files, add new -CSP option to pkcs12 utility.
3022 *) Fix a memory leak in 'sk_dup()' in the case reallocation fails. (Also
3023 tidy up some unnecessarily weird code in 'sk_new()').
3024 [Geoff, reported by Diego Tartara <dtartara@novamens.com>]
3026 *) Change the key loading routines for ENGINEs to use the same kind
3027 callback (pem_password_cb) as all other routines that need this
3031 *) Increase ENTROPY_NEEDED to 32 bytes, as Rijndael can operate with
3032 256 bit (=32 byte) keys. Of course seeding with more entropy bytes
3033 than this minimum value is recommended.
3036 *) New random seeder for OpenVMS, using the system process statistics
3037 that are easily reachable.
3040 *) Windows apparently can't transparently handle global
3041 variables defined in DLLs. Initialisations such as:
3043 const ASN1_ITEM *it = &ASN1_INTEGER_it;
3045 wont compile. This is used by the any applications that need to
3046 declare their own ASN1 modules. This was fixed by adding the option
3047 EXPORT_VAR_AS_FN to all Win32 platforms, although this isn't strictly
3048 needed for static libraries under Win32.
3051 *) New functions X509_PURPOSE_set() and X509_TRUST_set() to handle
3052 setting of purpose and trust fields. New X509_STORE trust and
3053 purpose functions and tidy up setting in other SSL functions.
3056 *) Add copies of X509_STORE_CTX fields and callbacks to X509_STORE
3057 structure. These are inherited by X509_STORE_CTX when it is
3058 initialised. This allows various defaults to be set in the
3059 X509_STORE structure (such as flags for CRL checking and custom
3060 purpose or trust settings) for functions which only use X509_STORE_CTX
3061 internally such as S/MIME.
3063 Modify X509_STORE_CTX_purpose_inherit() so it only sets purposes and
3064 trust settings if they are not set in X509_STORE. This allows X509_STORE
3065 purposes and trust (in S/MIME for example) to override any set by default.
3067 Add command line options for CRL checking to smime, s_client and s_server
3071 *) Initial CRL based revocation checking. If the CRL checking flag(s)
3072 are set then the CRL is looked up in the X509_STORE structure and
3073 its validity and signature checked, then if the certificate is found
3074 in the CRL the verify fails with a revoked error.
3076 Various new CRL related callbacks added to X509_STORE_CTX structure.
3078 Command line options added to 'verify' application to support this.
3080 This needs some additional work, such as being able to handle multiple
3081 CRLs with different times, extension based lookup (rather than just
3082 by subject name) and ultimately more complete V2 CRL extension
3086 *) Add a general user interface API (crypto/ui/). This is designed
3087 to replace things like des_read_password and friends (backward
3088 compatibility functions using this new API are provided).
3089 The purpose is to remove prompting functions from the DES code
3090 section as well as provide for prompting through dialog boxes in
3091 a window system and the like.
3094 *) Add "ex_data" support to ENGINE so implementations can add state at a
3095 per-structure level rather than having to store it globally.
3098 *) Make it possible for ENGINE structures to be copied when retrieved by
3099 ENGINE_by_id() if the ENGINE specifies a new flag: ENGINE_FLAGS_BY_ID_COPY.
3100 This causes the "original" ENGINE structure to act like a template,
3101 analogous to the RSA vs. RSA_METHOD type of separation. Because of this
3102 operational state can be localised to each ENGINE structure, despite the
3103 fact they all share the same "methods". New ENGINE structures returned in
3104 this case have no functional references and the return value is the single
3105 structural reference. This matches the single structural reference returned
3106 by ENGINE_by_id() normally, when it is incremented on the pre-existing
3110 *) Fix ASN1 decoder when decoding type ANY and V_ASN1_OTHER: since this
3111 needs to match any other type at all we need to manually clear the
3115 *) Changes to the "openssl engine" utility to include;
3116 - verbosity levels ('-v', '-vv', and '-vvv') that provide information
3117 about an ENGINE's available control commands.
3118 - executing control commands from command line arguments using the
3119 '-pre' and '-post' switches. '-post' is only used if '-t' is
3120 specified and the ENGINE is successfully initialised. The syntax for
3121 the individual commands are colon-separated, for example;
3122 openssl engine chil -pre FORK_CHECK:0 -pre SO_PATH:/lib/test.so
3125 *) New dynamic control command support for ENGINEs. ENGINEs can now
3126 declare their own commands (numbers), names (strings), descriptions,
3127 and input types for run-time discovery by calling applications. A
3128 subset of these commands are implicitly classed as "executable"
3129 depending on their input type, and only these can be invoked through
3130 the new string-based API function ENGINE_ctrl_cmd_string(). (Eg. this
3131 can be based on user input, config files, etc). The distinction is
3132 that "executable" commands cannot return anything other than a boolean
3133 result and can only support numeric or string input, whereas some
3134 discoverable commands may only be for direct use through
3135 ENGINE_ctrl(), eg. supporting the exchange of binary data, function
3136 pointers, or other custom uses. The "executable" commands are to
3137 support parameterisations of ENGINE behaviour that can be
3138 unambiguously defined by ENGINEs and used consistently across any
3139 OpenSSL-based application. Commands have been added to all the
3140 existing hardware-supporting ENGINEs, noticeably "SO_PATH" to allow
3141 control over shared-library paths without source code alterations.
3144 *) Changed all ENGINE implementations to dynamically allocate their
3145 ENGINEs rather than declaring them statically. Apart from this being
3146 necessary with the removal of the ENGINE_FLAGS_MALLOCED distinction,
3147 this also allows the implementations to compile without using the
3148 internal engine_int.h header.
3151 *) Minor adjustment to "rand" code. RAND_get_rand_method() now returns a
3152 'const' value. Any code that should be able to modify a RAND_METHOD
3153 should already have non-const pointers to it (ie. they should only
3154 modify their own ones).
3157 *) Made a variety of little tweaks to the ENGINE code.
3158 - "atalla" and "ubsec" string definitions were moved from header files
3159 to C code. "nuron" string definitions were placed in variables
3160 rather than hard-coded - allowing parameterisation of these values
3161 later on via ctrl() commands.
3162 - Removed unused "#if 0"'d code.
3163 - Fixed engine list iteration code so it uses ENGINE_free() to release
3164 structural references.
3165 - Constified the RAND_METHOD element of ENGINE structures.
3166 - Constified various get/set functions as appropriate and added
3167 missing functions (including a catch-all ENGINE_cpy that duplicates
3168 all ENGINE values onto a new ENGINE except reference counts/state).
3169 - Removed NULL parameter checks in get/set functions. Setting a method
3170 or function to NULL is a way of cancelling out a previously set
3171 value. Passing a NULL ENGINE parameter is just plain stupid anyway
3172 and doesn't justify the extra error symbols and code.
3173 - Deprecate the ENGINE_FLAGS_MALLOCED define and move the area for
3174 flags from engine_int.h to engine.h.
3175 - Changed prototypes for ENGINE handler functions (init(), finish(),
3176 ctrl(), key-load functions, etc) to take an (ENGINE*) parameter.
3179 *) Implement binary inversion algorithm for BN_mod_inverse in addition
3180 to the algorithm using long division. The binary algorithm can be
3181 used only if the modulus is odd. On 32-bit systems, it is faster
3182 only for relatively small moduli (roughly 20-30% for 128-bit moduli,
3183 roughly 5-15% for 256-bit moduli), so we use it only for moduli
3184 up to 450 bits. In 64-bit environments, the binary algorithm
3185 appears to be advantageous for much longer moduli; here we use it
3186 for moduli up to 2048 bits.
3189 *) Rewrite CHOICE field setting in ASN1_item_ex_d2i(). The old code
3190 could not support the combine flag in choice fields.
3193 *) Add a 'copy_extensions' option to the 'ca' utility. This copies
3194 extensions from a certificate request to the certificate.
3197 *) Allow multiple 'certopt' and 'nameopt' options to be separated
3198 by commas. Add 'namopt' and 'certopt' options to the 'ca' config
3199 file: this allows the display of the certificate about to be
3200 signed to be customised, to allow certain fields to be included
3201 or excluded and extension details. The old system didn't display
3202 multicharacter strings properly, omitted fields not in the policy
3203 and couldn't display additional details such as extensions.
3206 *) Function EC_POINTs_mul for multiple scalar multiplication
3207 of an arbitrary number of elliptic curve points
3208 \sum scalars[i]*points[i],
3209 optionally including the generator defined for the EC_GROUP:
3210 scalar*generator + \sum scalars[i]*points[i].
3212 EC_POINT_mul is a simple wrapper function for the typical case
3213 that the point list has just one item (besides the optional
3217 *) First EC_METHODs for curves over GF(p):
3219 EC_GFp_simple_method() uses the basic BN_mod_mul and BN_mod_sqr
3220 operations and provides various method functions that can also
3221 operate with faster implementations of modular arithmetic.
3223 EC_GFp_mont_method() reuses most functions that are part of
3224 EC_GFp_simple_method, but uses Montgomery arithmetic.
3226 [Bodo Moeller; point addition and point doubling
3227 implementation directly derived from source code provided by
3228 Lenka Fibikova <fibikova@exp-math.uni-essen.de>]
3230 *) Framework for elliptic curves (crypto/ec/ec.h, crypto/ec/ec_lcl.h,
3231 crypto/ec/ec_lib.c):
3233 Curves are EC_GROUP objects (with an optional group generator)
3234 based on EC_METHODs that are built into the library.
3236 Points are EC_POINT objects based on EC_GROUP objects.
3238 Most of the framework would be able to handle curves over arbitrary
3239 finite fields, but as there are no obvious types for fields other
3240 than GF(p), some functions are limited to that for now.
3243 *) Add the -HTTP option to s_server. It is similar to -WWW, but requires
3244 that the file contains a complete HTTP response.
3247 *) Add the ec directory to mkdef.pl and mkfiles.pl. In mkdef.pl
3248 change the def and num file printf format specifier from "%-40sXXX"
3249 to "%-39s XXX". The latter will always guarantee a space after the
3250 field while the former will cause them to run together if the field
3251 is 40 of more characters long.
3254 *) Constify the cipher and digest 'method' functions and structures
3255 and modify related functions to take constant EVP_MD and EVP_CIPHER
3259 *) Hide BN_CTX structure details in bn_lcl.h instead of publishing them
3260 in <openssl/bn.h>. Also further increase BN_CTX_NUM to 32.
3263 *) Modify EVP_Digest*() routines so they now return values. Although the
3264 internal software routines can never fail additional hardware versions
3268 *) Clean up crypto/err/err.h and change some error codes to avoid conflicts:
3270 Previously ERR_R_FATAL was too small and coincided with ERR_LIB_PKCS7
3271 (= ERR_R_PKCS7_LIB); it is now 64 instead of 32.
3274 ERR_R_NESTED_ASN1_ERROR
3276 ERR_R_MISSING_ASN1_EOS
3277 were 4 .. 9, conflicting with
3278 ERR_LIB_RSA (= ERR_R_RSA_LIB)
3280 ERR_LIB_PEM (= ERR_R_PEM_LIB).
3281 They are now 58 .. 63 (i.e., just below ERR_R_FATAL).
3283 Add new error code 'ERR_R_INTERNAL_ERROR'.
3286 *) Don't overuse locks in crypto/err/err.c: For data retrieval, CRYPTO_r_lock
3290 *) New option '-subj arg' for 'openssl req' and 'openssl ca'. This
3291 sets the subject name for a new request or supersedes the
3292 subject name in a given request. Formats that can be parsed are
3293 'CN=Some Name, OU=myOU, C=IT'
3295 'CN=Some Name/OU=myOU/C=IT'.
3297 Add options '-batch' and '-verbose' to 'openssl req'.
3298 [Massimiliano Pala <madwolf@hackmasters.net>]
3300 *) Introduce the possibility to access global variables through
3301 functions on platform were that's the best way to handle exporting
3302 global variables in shared libraries. To enable this functionality,
3303 one must configure with "EXPORT_VAR_AS_FN" or defined the C macro
3304 "OPENSSL_EXPORT_VAR_AS_FUNCTION" in crypto/opensslconf.h (the latter
3305 is normally done by Configure or something similar).
3307 To implement a global variable, use the macro OPENSSL_IMPLEMENT_GLOBAL
3308 in the source file (foo.c) like this:
3310 OPENSSL_IMPLEMENT_GLOBAL(int,foo)=1;
3311 OPENSSL_IMPLEMENT_GLOBAL(double,bar);
3313 To declare a global variable, use the macros OPENSSL_DECLARE_GLOBAL
3314 and OPENSSL_GLOBAL_REF in the header file (foo.h) like this:
3316 OPENSSL_DECLARE_GLOBAL(int,foo);
3317 #define foo OPENSSL_GLOBAL_REF(foo)
3318 OPENSSL_DECLARE_GLOBAL(double,bar);
3319 #define bar OPENSSL_GLOBAL_REF(bar)
3321 The #defines are very important, and therefore so is including the
3322 header file everywhere where the defined globals are used.
3324 The macro OPENSSL_EXPORT_VAR_AS_FUNCTION also affects the definition
3325 of ASN.1 items, but that structure is a bit different.
3327 The largest change is in util/mkdef.pl which has been enhanced with
3328 better and easier to understand logic to choose which symbols should
3329 go into the Windows .def files as well as a number of fixes and code
3330 cleanup (among others, algorithm keywords are now sorted
3331 lexicographically to avoid constant rewrites).
3334 *) In BN_div() keep a copy of the sign of 'num' before writing the
3335 result to 'rm' because if rm==num the value will be overwritten
3336 and produce the wrong result if 'num' is negative: this caused
3337 problems with BN_mod() and BN_nnmod().
3340 *) Function OCSP_request_verify(). This checks the signature on an
3341 OCSP request and verifies the signer certificate. The signer
3342 certificate is just checked for a generic purpose and OCSP request
3346 *) Add OCSP_check_validity() function to check the validity of OCSP
3347 responses. OCSP responses are prepared in real time and may only
3348 be a few seconds old. Simply checking that the current time lies
3349 between thisUpdate and nextUpdate max reject otherwise valid responses
3350 caused by either OCSP responder or client clock inaccuracy. Instead
3351 we allow thisUpdate and nextUpdate to fall within a certain period of
3352 the current time. The age of the response can also optionally be
3353 checked. Two new options -validity_period and -status_age added to
3357 *) If signature or public key algorithm is unrecognized print out its
3358 OID rather that just UNKNOWN.
3361 *) Change OCSP_cert_to_id() to tolerate a NULL subject certificate and
3362 OCSP_cert_id_new() a NULL serialNumber. This allows a partial certificate
3363 ID to be generated from the issuer certificate alone which can then be
3364 passed to OCSP_id_issuer_cmp().
3367 *) New compilation option ASN1_ITEM_FUNCTIONS. This causes the new
3368 ASN1 modules to export functions returning ASN1_ITEM pointers
3369 instead of the ASN1_ITEM structures themselves. This adds several
3370 new macros which allow the underlying ASN1 function/structure to
3371 be accessed transparently. As a result code should not use ASN1_ITEM
3372 references directly (such as &X509_it) but instead use the relevant
3373 macros (such as ASN1_ITEM_rptr(X509)). This option is to allow
3374 use of the new ASN1 code on platforms where exporting structures
3375 is problematical (for example in shared libraries) but exporting
3376 functions returning pointers to structures is not.
3379 *) Add support for overriding the generation of SSL/TLS session IDs.
3380 These callbacks can be registered either in an SSL_CTX or per SSL.
3381 The purpose of this is to allow applications to control, if they wish,
3382 the arbitrary values chosen for use as session IDs, particularly as it
3383 can be useful for session caching in multiple-server environments. A
3384 command-line switch for testing this (and any client code that wishes
3385 to use such a feature) has been added to "s_server".
3386 [Geoff Thorpe, Lutz Jaenicke]
3388 *) Modify mkdef.pl to recognise and parse preprocessor conditionals
3389 of the form '#if defined(...) || defined(...) || ...' and
3390 '#if !defined(...) && !defined(...) && ...'. This also avoids
3391 the growing number of special cases it was previously handling.
3394 *) Make all configuration macros available for application by making
3395 sure they are available in opensslconf.h, by giving them names starting
3396 with "OPENSSL_" to avoid conflicts with other packages and by making
3397 sure e_os2.h will cover all platform-specific cases together with
3399 Additionally, it is now possible to define configuration/platform-
3400 specific names (called "system identities"). In the C code, these
3401 are prefixed with "OPENSSL_SYSNAME_". e_os2.h will create another
3402 macro with the name beginning with "OPENSSL_SYS_", which is determined
3403 from "OPENSSL_SYSNAME_*" or compiler-specific macros depending on
3407 *) New option -set_serial to 'req' and 'x509' this allows the serial
3408 number to use to be specified on the command line. Previously self
3409 signed certificates were hard coded with serial number 0 and the
3410 CA options of 'x509' had to use a serial number in a file which was
3414 *) New options to 'ca' utility to support V2 CRL entry extensions.
3415 Currently CRL reason, invalidity date and hold instruction are
3416 supported. Add new CRL extensions to V3 code and some new objects.
3419 *) New function EVP_CIPHER_CTX_set_padding() this is used to
3420 disable standard block padding (aka PKCS#5 padding) in the EVP
3421 API, which was previously mandatory. This means that the data is
3422 not padded in any way and so the total length much be a multiple
3423 of the block size, otherwise an error occurs.
3426 *) Initial (incomplete) OCSP SSL support.
3429 *) New function OCSP_parse_url(). This splits up a URL into its host,
3430 port and path components: primarily to parse OCSP URLs. New -url
3431 option to ocsp utility.
3434 *) New nonce behavior. The return value of OCSP_check_nonce() now
3435 reflects the various checks performed. Applications can decide
3436 whether to tolerate certain situations such as an absent nonce
3437 in a response when one was present in a request: the ocsp application
3438 just prints out a warning. New function OCSP_add1_basic_nonce()
3439 this is to allow responders to include a nonce in a response even if
3440 the request is nonce-less.
3443 *) Disable stdin buffering in load_cert (apps/apps.c) so that no certs are
3444 skipped when using openssl x509 multiple times on a single input file,
3445 e.g. "(openssl x509 -out cert1; openssl x509 -out cert2) <certs".
3448 *) Make ASN1_UTCTIME_set_string() and ASN1_GENERALIZEDTIME_set_string()
3449 set string type: to handle setting ASN1_TIME structures. Fix ca
3450 utility to correctly initialize revocation date of CRLs.
3453 *) New option SSL_OP_CIPHER_SERVER_PREFERENCE allows the server to override
3454 the clients preferred ciphersuites and rather use its own preferences.
3455 Should help to work around M$ SGC (Server Gated Cryptography) bug in
3456 Internet Explorer by ensuring unchanged hash method during stepup.
3457 (Also replaces the broken/deactivated SSL_OP_NON_EXPORT_FIRST option.)
3460 *) Make mkdef.pl recognise all DECLARE_ASN1 macros, change rijndael
3461 to aes and add a new 'exist' option to print out symbols that don't
3465 *) Additional options to ocsp utility to allow flags to be set and
3466 additional certificates supplied.
3469 *) Add the option -VAfile to 'openssl ocsp', so the user can give the
3470 OCSP client a number of certificate to only verify the response
3474 *) Update Rijndael code to version 3.0 and change EVP AES ciphers to
3475 handle the new API. Currently only ECB, CBC modes supported. Add new
3478 Add TLS AES ciphersuites as described in RFC3268, "Advanced
3479 Encryption Standard (AES) Ciphersuites for Transport Layer
3480 Security (TLS)". (In beta versions of OpenSSL 0.9.7, these were
3481 not enabled by default and were not part of the "ALL" ciphersuite
3482 alias because they were not yet official; they could be
3483 explicitly requested by specifying the "AESdraft" ciphersuite
3484 group alias. In the final release of OpenSSL 0.9.7, the group
3485 alias is called "AES" and is part of "ALL".)
3486 [Ben Laurie, Steve Henson, Bodo Moeller]
3488 *) New function OCSP_copy_nonce() to copy nonce value (if present) from
3489 request to response.
3492 *) Functions for OCSP responders. OCSP_request_onereq_count(),
3493 OCSP_request_onereq_get0(), OCSP_onereq_get0_id() and OCSP_id_get0_info()
3494 extract information from a certificate request. OCSP_response_create()
3495 creates a response and optionally adds a basic response structure.
3496 OCSP_basic_add1_status() adds a complete single response to a basic
3497 response and returns the OCSP_SINGLERESP structure just added (to allow
3498 extensions to be included for example). OCSP_basic_add1_cert() adds a
3499 certificate to a basic response and OCSP_basic_sign() signs a basic
3500 response with various flags. New helper functions ASN1_TIME_check()
3501 (checks validity of ASN1_TIME structure) and ASN1_TIME_to_generalizedtime()
3502 (converts ASN1_TIME to GeneralizedTime).
3505 *) Various new functions. EVP_Digest() combines EVP_Digest{Init,Update,Final}()
3506 in a single operation. X509_get0_pubkey_bitstr() extracts the public_key
3507 structure from a certificate. X509_pubkey_digest() digests the public_key
3508 contents: this is used in various key identifiers.
3511 *) Make sk_sort() tolerate a NULL argument.
3512 [Steve Henson reported by Massimiliano Pala <madwolf@comune.modena.it>]
3514 *) New OCSP verify flag OCSP_TRUSTOTHER. When set the "other" certificates
3515 passed by the function are trusted implicitly. If any of them signed the
3516 response then it is assumed to be valid and is not verified.
3519 *) In PKCS7_set_type() initialise content_type in PKCS7_ENC_CONTENT
3520 to data. This was previously part of the PKCS7 ASN1 code. This
3521 was causing problems with OpenSSL created PKCS#12 and PKCS#7 structures.
3522 [Steve Henson, reported by Kenneth R. Robinette
3523 <support@securenetterm.com>]
3525 *) Add CRYPTO_push_info() and CRYPTO_pop_info() calls to new ASN1
3526 routines: without these tracing memory leaks is very painful.
3527 Fix leaks in PKCS12 and PKCS7 routines.
3530 *) Make X509_time_adj() cope with the new behaviour of ASN1_TIME_new().
3531 Previously it initialised the 'type' argument to V_ASN1_UTCTIME which
3532 effectively meant GeneralizedTime would never be used. Now it
3533 is initialised to -1 but X509_time_adj() now has to check the value
3534 and use ASN1_TIME_set() if the value is not V_ASN1_UTCTIME or
3535 V_ASN1_GENERALIZEDTIME, without this it always uses GeneralizedTime.
3536 [Steve Henson, reported by Kenneth R. Robinette
3537 <support@securenetterm.com>]
3539 *) Fixes to BN_to_ASN1_INTEGER when bn is zero. This would previously
3540 result in a zero length in the ASN1_INTEGER structure which was
3541 not consistent with the structure when d2i_ASN1_INTEGER() was used
3542 and would cause ASN1_INTEGER_cmp() to fail. Enhance s2i_ASN1_INTEGER()
3543 to cope with hex and negative integers. Fix bug in i2a_ASN1_INTEGER()
3544 where it did not print out a minus for negative ASN1_INTEGER.
3547 *) Add summary printout to ocsp utility. The various functions which
3548 convert status values to strings have been renamed to:
3549 OCSP_response_status_str(), OCSP_cert_status_str() and
3550 OCSP_crl_reason_str() and are no longer static. New options
3551 to verify nonce values and to disable verification. OCSP response
3552 printout format cleaned up.
3555 *) Add additional OCSP certificate checks. These are those specified
3556 in RFC2560. This consists of two separate checks: the CA of the
3557 certificate being checked must either be the OCSP signer certificate
3558 or the issuer of the OCSP signer certificate. In the latter case the
3559 OCSP signer certificate must contain the OCSP signing extended key
3560 usage. This check is performed by attempting to match the OCSP
3561 signer or the OCSP signer CA to the issuerNameHash and issuerKeyHash
3562 in the OCSP_CERTID structures of the response.
3565 *) Initial OCSP certificate verification added to OCSP_basic_verify()
3566 and related routines. This uses the standard OpenSSL certificate
3567 verify routines to perform initial checks (just CA validity) and
3568 to obtain the certificate chain. Then additional checks will be
3569 performed on the chain. Currently the root CA is checked to see
3570 if it is explicitly trusted for OCSP signing. This is used to set
3571 a root CA as a global signing root: that is any certificate that
3572 chains to that CA is an acceptable OCSP signing certificate.
3575 *) New '-extfile ...' option to 'openssl ca' for reading X.509v3
3576 extensions from a separate configuration file.
3577 As when reading extensions from the main configuration file,
3578 the '-extensions ...' option may be used for specifying the
3580 [Massimiliano Pala <madwolf@comune.modena.it>]
3582 *) New OCSP utility. Allows OCSP requests to be generated or
3583 read. The request can be sent to a responder and the output
3584 parsed, outputed or printed in text form. Not complete yet:
3585 still needs to check the OCSP response validity.
3588 *) New subcommands for 'openssl ca':
3589 'openssl ca -status <serial>' prints the status of the cert with
3590 the given serial number (according to the index file).
3591 'openssl ca -updatedb' updates the expiry status of certificates
3593 [Massimiliano Pala <madwolf@comune.modena.it>]
3595 *) New '-newreq-nodes' command option to CA.pl. This is like
3596 '-newreq', but calls 'openssl req' with the '-nodes' option
3597 so that the resulting key is not encrypted.
3598 [Damien Miller <djm@mindrot.org>]
3600 *) New configuration for the GNU Hurd.
3601 [Jonathan Bartlett <johnnyb@wolfram.com> via Richard Levitte]
3603 *) Initial code to implement OCSP basic response verify. This
3604 is currently incomplete. Currently just finds the signer's
3605 certificate and verifies the signature on the response.
3608 *) New SSLeay_version code SSLEAY_DIR to determine the compiled-in
3609 value of OPENSSLDIR. This is available via the new '-d' option
3610 to 'openssl version', and is also included in 'openssl version -a'.
3613 *) Allowing defining memory allocation callbacks that will be given
3614 file name and line number information in additional arguments
3615 (a const char* and an int). The basic functionality remains, as
3616 well as the original possibility to just replace malloc(),
3617 realloc() and free() by functions that do not know about these
3618 additional arguments. To register and find out the current
3619 settings for extended allocation functions, the following
3620 functions are provided:
3622 CRYPTO_set_mem_ex_functions
3623 CRYPTO_set_locked_mem_ex_functions
3624 CRYPTO_get_mem_ex_functions
3625 CRYPTO_get_locked_mem_ex_functions
3627 These work the same way as CRYPTO_set_mem_functions and friends.
3628 CRYPTO_get_[locked_]mem_functions now writes 0 where such an
3629 extended allocation function is enabled.
3630 Similarly, CRYPTO_get_[locked_]mem_ex_functions writes 0 where
3631 a conventional allocation function is enabled.
3632 [Richard Levitte, Bodo Moeller]
3634 *) Finish off removing the remaining LHASH function pointer casts.
3635 There should no longer be any prototype-casting required when using
3636 the LHASH abstraction, and any casts that remain are "bugs". See
3637 the callback types and macros at the head of lhash.h for details
3638 (and "OBJ_cleanup" in crypto/objects/obj_dat.c as an example).
3641 *) Add automatic query of EGD sockets in RAND_poll() for the unix variant.
3642 If /dev/[u]random devices are not available or do not return enough
3643 entropy, EGD style sockets (served by EGD or PRNGD) will automatically
3645 The locations /var/run/egd-pool, /dev/egd-pool, /etc/egd-pool, and
3646 /etc/entropy will be queried once each in this sequence, quering stops
3647 when enough entropy was collected without querying more sockets.
3650 *) Change the Unix RAND_poll() variant to be able to poll several
3651 random devices, as specified by DEVRANDOM, until a sufficient amount
3652 of data has been collected. We spend at most 10 ms on each file
3653 (select timeout) and read in non-blocking mode. DEVRANDOM now
3654 defaults to the list "/dev/urandom", "/dev/random", "/dev/srandom"
3655 (previously it was just the string "/dev/urandom"), so on typical
3656 platforms the 10 ms delay will never occur.
3657 Also separate out the Unix variant to its own file, rand_unix.c.
3658 For VMS, there's a currently-empty rand_vms.c.
3661 *) Move OCSP client related routines to ocsp_cl.c. These
3662 provide utility functions which an application needing
3663 to issue a request to an OCSP responder and analyse the
3664 response will typically need: as opposed to those which an
3665 OCSP responder itself would need which will be added later.
3667 OCSP_request_sign() signs an OCSP request with an API similar
3668 to PKCS7_sign(). OCSP_response_status() returns status of OCSP
3669 response. OCSP_response_get1_basic() extracts basic response
3670 from response. OCSP_resp_find_status(): finds and extracts status
3671 information from an OCSP_CERTID structure (which will be created
3672 when the request structure is built). These are built from lower
3673 level functions which work on OCSP_SINGLERESP structures but
3674 wont normally be used unless the application wishes to examine
3675 extensions in the OCSP response for example.
3677 Replace nonce routines with a pair of functions.
3678 OCSP_request_add1_nonce() adds a nonce value and optionally
3679 generates a random value. OCSP_check_nonce() checks the
3680 validity of the nonce in an OCSP response.
3683 *) Change function OCSP_request_add() to OCSP_request_add0_id().
3684 This doesn't copy the supplied OCSP_CERTID and avoids the
3685 need to free up the newly created id. Change return type
3686 to OCSP_ONEREQ to return the internal OCSP_ONEREQ structure.
3687 This can then be used to add extensions to the request.
3688 Deleted OCSP_request_new(), since most of its functionality
3689 is now in OCSP_REQUEST_new() (and the case insensitive name
3690 clash) apart from the ability to set the request name which
3691 will be added elsewhere.
3694 *) Update OCSP API. Remove obsolete extensions argument from
3695 various functions. Extensions are now handled using the new
3696 OCSP extension code. New simple OCSP HTTP function which
3697 can be used to send requests and parse the response.
3700 *) Fix the PKCS#7 (S/MIME) code to work with new ASN1. Two new
3701 ASN1_ITEM structures help with sign and verify. PKCS7_ATTR_SIGN
3702 uses the special reorder version of SET OF to sort the attributes
3703 and reorder them to match the encoded order. This resolves a long
3704 standing problem: a verify on a PKCS7 structure just after signing
3705 it used to fail because the attribute order did not match the
3706 encoded order. PKCS7_ATTR_VERIFY does not reorder the attributes:
3707 it uses the received order. This is necessary to tolerate some broken
3708 software that does not order SET OF. This is handled by encoding
3709 as a SEQUENCE OF but using implicit tagging (with UNIVERSAL class)
3710 to produce the required SET OF.
3713 *) Have mk1mf.pl generate the macros OPENSSL_BUILD_SHLIBCRYPTO and
3714 OPENSSL_BUILD_SHLIBSSL and use them appropriately in the header
3715 files to get correct declarations of the ASN.1 item variables.
3718 *) Rewrite of PKCS#12 code to use new ASN1 functionality. Replace many
3719 PKCS#12 macros with real functions. Fix two unrelated ASN1 bugs:
3720 asn1_check_tlen() would sometimes attempt to use 'ctx' when it was
3721 NULL and ASN1_TYPE was not dereferenced properly in asn1_ex_c2i().
3722 New ASN1 macro: DECLARE_ASN1_ITEM() which just declares the relevant
3723 ASN1_ITEM and no wrapper functions.
3726 *) New functions or ASN1_item_d2i_fp() and ASN1_item_d2i_bio(). These
3727 replace the old function pointer based I/O routines. Change most of
3728 the *_d2i_bio() and *_d2i_fp() functions to use these.
3731 *) Enhance mkdef.pl to be more accepting about spacing in C preprocessor
3732 lines, recognice more "algorithms" that can be deselected, and make
3733 it complain about algorithm deselection that isn't recognised.
3736 *) New ASN1 functions to handle dup, sign, verify, digest, pack and
3737 unpack operations in terms of ASN1_ITEM. Modify existing wrappers
3738 to use new functions. Add NO_ASN1_OLD which can be set to remove
3739 some old style ASN1 functions: this can be used to determine if old
3740 code will still work when these eventually go away.
3743 *) New extension functions for OCSP structures, these follow the
3744 same conventions as certificates and CRLs.
3747 *) New function X509V3_add1_i2d(). This automatically encodes and
3748 adds an extension. Its behaviour can be customised with various
3749 flags to append, replace or delete. Various wrappers added for
3750 certifcates and CRLs.
3753 *) Fix to avoid calling the underlying ASN1 print routine when
3754 an extension cannot be parsed. Correct a typo in the
3755 OCSP_SERVICELOC extension. Tidy up print OCSP format.
3758 *) Make mkdef.pl parse some of the ASN1 macros and add apropriate
3759 entries for variables.
3762 *) Add functionality to apps/openssl.c for detecting locking
3763 problems: As the program is single-threaded, all we have
3764 to do is register a locking callback using an array for
3765 storing which locks are currently held by the program.
3768 *) Use a lock around the call to CRYPTO_get_ex_new_index() in
3769 SSL_get_ex_data_X509_STORE_idx(), which is used in
3770 ssl_verify_cert_chain() and thus can be called at any time
3771 during TLS/SSL handshakes so that thread-safety is essential.
3772 Unfortunately, the ex_data design is not at all suited
3773 for multi-threaded use, so it probably should be abolished.
3776 *) Added Broadcom "ubsec" ENGINE to OpenSSL.
3777 [Broadcom, tweaked and integrated by Geoff Thorpe]
3779 *) Move common extension printing code to new function
3780 X509V3_print_extensions(). Reorganise OCSP print routines and
3781 implement some needed OCSP ASN1 functions. Add OCSP extensions.
3784 *) New function X509_signature_print() to remove duplication in some
3788 *) Add a special meaning when SET OF and SEQUENCE OF flags are both
3789 set (this was treated exactly the same as SET OF previously). This
3790 is used to reorder the STACK representing the structure to match the
3791 encoding. This will be used to get round a problem where a PKCS7
3792 structure which was signed could not be verified because the STACK
3793 order did not reflect the encoded order.
3796 *) Reimplement the OCSP ASN1 module using the new code.
3799 *) Update the X509V3 code to permit the use of an ASN1_ITEM structure
3800 for its ASN1 operations. The old style function pointers still exist
3801 for now but they will eventually go away.
3804 *) Merge in replacement ASN1 code from the ASN1 branch. This almost
3805 completely replaces the old ASN1 functionality with a table driven
3806 encoder and decoder which interprets an ASN1_ITEM structure describing
3807 the ASN1 module. Compatibility with the existing ASN1 API (i2d,d2i) is
3808 largely maintained. Almost all of the old asn1_mac.h macro based ASN1
3809 has also been converted to the new form.
3812 *) Change BN_mod_exp_recp so that negative moduli are tolerated
3813 (the sign is ignored). Similarly, ignore the sign in BN_MONT_CTX_set
3814 so that BN_mod_exp_mont and BN_mod_exp_mont_word work
3815 for negative moduli.
3818 *) Fix BN_uadd and BN_usub: Always return non-negative results instead
3819 of not touching the result's sign bit.
3822 *) BN_div bugfix: If the result is 0, the sign (res->neg) must not be
3826 *) Changed the LHASH code to use prototypes for callbacks, and created
3827 macros to declare and implement thin (optionally static) functions
3828 that provide type-safety and avoid function pointer casting for the
3829 type-specific callbacks.
3832 *) Added Kerberos Cipher Suites to be used with TLS, as written in
3834 [Veers Staats <staatsvr@asc.hpc.mil>,
3835 Jeffrey Altman <jaltman@columbia.edu>, via Richard Levitte]
3837 *) Reformat the FAQ so the different questions and answers can be divided
3838 in sections depending on the subject.
3841 *) Have the zlib compression code load ZLIB.DLL dynamically under
3845 *) New function BN_mod_sqrt for computing square roots modulo a prime
3846 (using the probabilistic Tonelli-Shanks algorithm unless
3847 p == 3 (mod 4) or p == 5 (mod 8), which are cases that can
3848 be handled deterministically).
3849 [Lenka Fibikova <fibikova@exp-math.uni-essen.de>, Bodo Moeller]
3851 *) Make BN_mod_inverse faster by explicitly handling small quotients
3852 in the Euclid loop. (Speed gain about 20% for small moduli [256 or
3853 512 bits], about 30% for larger ones [1024 or 2048 bits].)
3856 *) New function BN_kronecker.
3859 *) Fix BN_gcd so that it works on negative inputs; the result is
3860 positive unless both parameters are zero.
3861 Previously something reasonably close to an infinite loop was
3862 possible because numbers could be growing instead of shrinking
3863 in the implementation of Euclid's algorithm.
3866 *) Fix BN_is_word() and BN_is_one() macros to take into account the
3867 sign of the number in question.
3869 Fix BN_is_word(a,w) to work correctly for w == 0.
3871 The old BN_is_word(a,w) macro is now called BN_abs_is_word(a,w)
3872 because its test if the absolute value of 'a' equals 'w'.
3873 Note that BN_abs_is_word does *not* handle w == 0 reliably;
3874 it exists mostly for use in the implementations of BN_is_zero(),
3875 BN_is_one(), and BN_is_word().
3878 *) New function BN_swap.
3881 *) Use BN_nnmod instead of BN_mod in crypto/bn/bn_exp.c so that
3882 the exponentiation functions are more likely to produce reasonable
3883 results on negative inputs.
3886 *) Change BN_mod_mul so that the result is always non-negative.
3887 Previously, it could be negative if one of the factors was negative;
3888 I don't think anyone really wanted that behaviour.
3891 *) Move BN_mod_... functions into new file crypto/bn/bn_mod.c
3892 (except for exponentiation, which stays in crypto/bn/bn_exp.c,
3893 and BN_mod_mul_reciprocal, which stays in crypto/bn/bn_recp.c)
3894 and add new functions:
3903 BN_mod_lshift1_quick
3907 These functions always generate non-negative results.
3909 BN_nnmod otherwise is like BN_mod (if BN_mod computes a remainder r
3910 such that |m| < r < 0, BN_nnmod will output rem + |m| instead).
3912 BN_mod_XXX_quick(r, a, [b,] m) generates the same result as
3913 BN_mod_XXX(r, a, [b,] m, ctx), but requires that a [and b]
3914 be reduced modulo m.
3915 [Lenka Fibikova <fibikova@exp-math.uni-essen.de>, Bodo Moeller]
3918 The following entry accidentily appeared in the CHANGES file
3919 distributed with OpenSSL 0.9.7. The modifications described in
3920 it do *not* apply to OpenSSL 0.9.7.
3922 *) Remove a few calls to bn_wexpand() in BN_sqr() (the one in there
3923 was actually never needed) and in BN_mul(). The removal in BN_mul()
3924 required a small change in bn_mul_part_recursive() and the addition
3925 of the functions bn_cmp_part_words(), bn_sub_part_words() and
3926 bn_add_part_words(), which do the same thing as bn_cmp_words(),
3927 bn_sub_words() and bn_add_words() except they take arrays with
3932 *) In 'openssl passwd', verify passwords read from the terminal
3933 unless the '-salt' option is used (which usually means that
3934 verification would just waste user's time since the resulting
3935 hash is going to be compared with some given password hash)
3936 or the new '-noverify' option is used.
3938 This is an incompatible change, but it does not affect
3939 non-interactive use of 'openssl passwd' (passwords on the command
3940 line, '-stdin' option, '-in ...' option) and thus should not
3944 *) Remove all references to RSAref, since there's no more need for it.
3947 *) Make DSO load along a path given through an environment variable
3948 (SHLIB_PATH) with shl_load().
3951 *) Constify the ENGINE code as a result of BIGNUM constification.
3952 Also constify the RSA code and most things related to it. In a
3953 few places, most notable in the depth of the ASN.1 code, ugly
3954 casts back to non-const were required (to be solved at a later
3958 *) Make it so the openssl application has all engines loaded by default.
3961 *) Constify the BIGNUM routines a little more.
3964 *) Add the following functions:
3966 ENGINE_load_cswift()
3968 ENGINE_load_atalla()
3970 ENGINE_load_builtin_engines()
3972 That way, an application can itself choose if external engines that
3973 are built-in in OpenSSL shall ever be used or not. The benefit is
3974 that applications won't have to be linked with libdl or other dso
3975 libraries unless it's really needed.
3977 Changed 'openssl engine' to load all engines on demand.
3978 Changed the engine header files to avoid the duplication of some
3979 declarations (they differed!).
3982 *) 'openssl engine' can now list capabilities.
3985 *) Better error reporting in 'openssl engine'.
3988 *) Never call load_dh_param(NULL) in s_server.
3991 *) Add engine application. It can currently list engines by name and
3992 identity, and test if they are actually available.
3995 *) Improve RPM specification file by forcing symbolic linking and making
3996 sure the installed documentation is also owned by root.root.
3997 [Damien Miller <djm@mindrot.org>]
3999 *) Give the OpenSSL applications more possibilities to make use of
4000 keys (public as well as private) handled by engines.
4003 *) Add OCSP code that comes from CertCo.
4006 *) Add VMS support for the Rijndael code.
4009 *) Added untested support for Nuron crypto accelerator.
4012 *) Add support for external cryptographic devices. This code was
4013 previously distributed separately as the "engine" branch.
4014 [Geoff Thorpe, Richard Levitte]
4016 *) Rework the filename-translation in the DSO code. It is now possible to
4017 have far greater control over how a "name" is turned into a filename
4018 depending on the operating environment and any oddities about the
4019 different shared library filenames on each system.
4022 *) Support threads on FreeBSD-elf in Configure.
4025 *) Fix for SHA1 assembly problem with MASM: it produces
4026 warnings about corrupt line number information when assembling
4027 with debugging information. This is caused by the overlapping
4029 [Bernd Matthes <mainbug@celocom.de>, Steve Henson]
4032 NCONF_get_number() has no error checking at all. As a replacement,
4033 NCONF_get_number_e() is defined (_e for "error checking") and is
4034 promoted strongly. The old NCONF_get_number is kept around for
4035 binary backward compatibility.
4036 Make it possible for methods to load from something other than a BIO,
4037 by providing a function pointer that is given a name instead of a BIO.
4038 For example, this could be used to load configuration data from an
4042 *) Fix for non blocking accept BIOs. Added new I/O special reason
4043 BIO_RR_ACCEPT to cover this case. Previously use of accept BIOs
4044 with non blocking I/O was not possible because no retry code was
4045 implemented. Also added new SSL code SSL_WANT_ACCEPT to cover
4049 *) Added the beginnings of Rijndael support.
4052 *) Fix for bug in DirectoryString mask setting. Add support for
4053 X509_NAME_print_ex() in 'req' and X509_print_ex() function
4054 to allow certificate printing to more controllable, additional
4055 'certopt' option to 'x509' to allow new printing options to be
4059 *) Clean old EAY MD5 hack from e_os.h.
4062 Changes between 0.9.6l and 0.9.6m [17 Mar 2004]
4064 *) Fix null-pointer assignment in do_change_cipher_spec() revealed
4065 by using the Codenomicon TLS Test Tool (CVE-2004-0079)
4066 [Joe Orton, Steve Henson]
4068 Changes between 0.9.6k and 0.9.6l [04 Nov 2003]
4070 *) Fix additional bug revealed by the NISCC test suite:
4072 Stop bug triggering large recursion when presented with
4073 certain ASN.1 tags (CVE-2003-0851)
4076 Changes between 0.9.6j and 0.9.6k [30 Sep 2003]
4078 *) Fix various bugs revealed by running the NISCC test suite:
4080 Stop out of bounds reads in the ASN1 code when presented with
4081 invalid tags (CVE-2003-0543 and CVE-2003-0544).
4083 If verify callback ignores invalid public key errors don't try to check
4084 certificate signature with the NULL public key.
4088 *) In ssl3_accept() (ssl/s3_srvr.c) only accept a client certificate
4089 if the server requested one: as stated in TLS 1.0 and SSL 3.0
4093 *) In ssl3_get_client_hello() (ssl/s3_srvr.c), tolerate additional
4094 extra data after the compression methods not only for TLS 1.0
4095 but also for SSL 3.0 (as required by the specification).
4096 [Bodo Moeller; problem pointed out by Matthias Loepfe]
4098 *) Change X509_certificate_type() to mark the key as exported/exportable
4099 when it's 512 *bits* long, not 512 bytes.
4102 Changes between 0.9.6i and 0.9.6j [10 Apr 2003]
4104 *) Countermeasure against the Klima-Pokorny-Rosa extension of
4105 Bleichbacher's attack on PKCS #1 v1.5 padding: treat
4106 a protocol version number mismatch like a decryption error
4107 in ssl3_get_client_key_exchange (ssl/s3_srvr.c).
4110 *) Turn on RSA blinding by default in the default implementation
4111 to avoid a timing attack. Applications that don't want it can call
4112 RSA_blinding_off() or use the new flag RSA_FLAG_NO_BLINDING.
4113 They would be ill-advised to do so in most cases.
4114 [Ben Laurie, Steve Henson, Geoff Thorpe, Bodo Moeller]
4116 *) Change RSA blinding code so that it works when the PRNG is not
4117 seeded (in this case, the secret RSA exponent is abused as
4118 an unpredictable seed -- if it is not unpredictable, there
4119 is no point in blinding anyway). Make RSA blinding thread-safe
4120 by remembering the creator's thread ID in rsa->blinding and
4121 having all other threads use local one-time blinding factors
4122 (this requires more computation than sharing rsa->blinding, but
4123 avoids excessive locking; and if an RSA object is not shared
4124 between threads, blinding will still be very fast).
4127 Changes between 0.9.6h and 0.9.6i [19 Feb 2003]
4129 *) In ssl3_get_record (ssl/s3_pkt.c), minimize information leaked
4130 via timing by performing a MAC computation even if incorrrect
4131 block cipher padding has been found. This is a countermeasure
4132 against active attacks where the attacker has to distinguish
4133 between bad padding and a MAC verification error. (CVE-2003-0078)
4135 [Bodo Moeller; problem pointed out by Brice Canvel (EPFL),
4136 Alain Hiltgen (UBS), Serge Vaudenay (EPFL), and
4137 Martin Vuagnoux (EPFL, Ilion)]
4139 Changes between 0.9.6g and 0.9.6h [5 Dec 2002]
4141 *) New function OPENSSL_cleanse(), which is used to cleanse a section of
4142 memory from it's contents. This is done with a counter that will
4143 place alternating values in each byte. This can be used to solve
4144 two issues: 1) the removal of calls to memset() by highly optimizing
4145 compilers, and 2) cleansing with other values than 0, since those can
4146 be read through on certain media, for example a swap space on disk.
4149 *) Bugfix: client side session caching did not work with external caching,
4150 because the session->cipher setting was not restored when reloading
4151 from the external cache. This problem was masked, when
4152 SSL_OP_NETSCAPE_REUSE_CIPHER_CHANGE_BUG (part of SSL_OP_ALL) was set.
4153 (Found by Steve Haslam <steve@araqnid.ddts.net>.)
4156 *) Fix client_certificate (ssl/s2_clnt.c): The permissible total
4157 length of the REQUEST-CERTIFICATE message is 18 .. 34, not 17 .. 33.
4158 [Zeev Lieber <zeev-l@yahoo.com>]
4160 *) Undo an undocumented change introduced in 0.9.6e which caused
4161 repeated calls to OpenSSL_add_all_ciphers() and
4162 OpenSSL_add_all_digests() to be ignored, even after calling
4166 *) Change the default configuration reader to deal with last line not
4167 being properly terminated.
4170 *) Change X509_NAME_cmp() so it applies the special rules on handling
4171 DN values that are of type PrintableString, as well as RDNs of type
4172 emailAddress where the value has the type ia5String.
4173 [stefank@valicert.com via Richard Levitte]
4175 *) Add a SSL_SESS_CACHE_NO_INTERNAL_STORE flag to take over half
4176 the job SSL_SESS_CACHE_NO_INTERNAL_LOOKUP was inconsistently
4177 doing, define a new flag (SSL_SESS_CACHE_NO_INTERNAL) to be
4178 the bitwise-OR of the two for use by the majority of applications
4179 wanting this behaviour, and update the docs. The documented
4180 behaviour and actual behaviour were inconsistent and had been
4181 changing anyway, so this is more a bug-fix than a behavioural
4183 [Geoff Thorpe, diagnosed by Nadav Har'El]
4185 *) Don't impose a 16-byte length minimum on session IDs in ssl/s3_clnt.c
4186 (the SSL 3.0 and TLS 1.0 specifications allow any length up to 32 bytes).
4189 *) Fix initialization code race conditions in
4190 SSLv23_method(), SSLv23_client_method(), SSLv23_server_method(),
4191 SSLv2_method(), SSLv2_client_method(), SSLv2_server_method(),
4192 SSLv3_method(), SSLv3_client_method(), SSLv3_server_method(),
4193 TLSv1_method(), TLSv1_client_method(), TLSv1_server_method(),
4194 ssl2_get_cipher_by_char(),
4195 ssl3_get_cipher_by_char().
4196 [Patrick McCormick <patrick@tellme.com>, Bodo Moeller]
4198 *) Reorder cleanup sequence in SSL_CTX_free(): only remove the ex_data after
4199 the cached sessions are flushed, as the remove_cb() might use ex_data
4200 contents. Bug found by Sam Varshavchik <mrsam@courier-mta.com>
4201 (see [openssl.org #212]).
4202 [Geoff Thorpe, Lutz Jaenicke]
4204 *) Fix typo in OBJ_txt2obj which incorrectly passed the content
4205 length, instead of the encoding length to d2i_ASN1_OBJECT.
4208 Changes between 0.9.6f and 0.9.6g [9 Aug 2002]
4210 *) [In 0.9.6g-engine release:]
4211 Fix crypto/engine/vendor_defns/cswift.h for WIN32 (use '_stdcall').
4212 [Lynn Gazis <lgazis@rainbow.com>]
4214 Changes between 0.9.6e and 0.9.6f [8 Aug 2002]
4216 *) Fix ASN1 checks. Check for overflow by comparing with LONG_MAX
4217 and get fix the header length calculation.
4218 [Florian Weimer <Weimer@CERT.Uni-Stuttgart.DE>,
4219 Alon Kantor <alonk@checkpoint.com> (and others),
4222 *) Use proper error handling instead of 'assertions' in buffer
4223 overflow checks added in 0.9.6e. This prevents DoS (the
4224 assertions could call abort()).
4225 [Arne Ansper <arne@ats.cyber.ee>, Bodo Moeller]
4227 Changes between 0.9.6d and 0.9.6e [30 Jul 2002]
4229 *) Add various sanity checks to asn1_get_length() to reject
4230 the ASN1 length bytes if they exceed sizeof(long), will appear
4231 negative or the content length exceeds the length of the
4233 [Steve Henson, Adi Stav <stav@mercury.co.il>, James Yonan <jim@ntlp.com>]
4235 *) Fix cipher selection routines: ciphers without encryption had no flags
4236 for the cipher strength set and where therefore not handled correctly
4237 by the selection routines (PR #130).
4240 *) Fix EVP_dsa_sha macro.
4244 SSL_OP_DONT_INSERT_EMPTY_FRAGMENTS
4245 for disabling the SSL 3.0/TLS 1.0 CBC vulnerability countermeasure
4246 that was added in OpenSSL 0.9.6d.
4248 As the countermeasure turned out to be incompatible with some
4249 broken SSL implementations, the new option is part of SSL_OP_ALL.
4250 SSL_OP_ALL is usually employed when compatibility with weird SSL
4251 implementations is desired (e.g. '-bugs' option to 's_client' and
4252 's_server'), so the new option is automatically set in many
4256 *) Changes in security patch:
4258 Changes marked "(CHATS)" were sponsored by the Defense Advanced
4259 Research Projects Agency (DARPA) and Air Force Research Laboratory,
4260 Air Force Materiel Command, USAF, under agreement number
4263 *) Add various sanity checks to asn1_get_length() to reject
4264 the ASN1 length bytes if they exceed sizeof(long), will appear
4265 negative or the content length exceeds the length of the
4266 supplied buffer. (CVE-2002-0659)
4267 [Steve Henson, Adi Stav <stav@mercury.co.il>, James Yonan <jim@ntlp.com>]
4269 *) Assertions for various potential buffer overflows, not known to
4271 [Ben Laurie (CHATS)]
4273 *) Various temporary buffers to hold ASCII versions of integers were
4274 too small for 64 bit platforms. (CVE-2002-0655)
4275 [Matthew Byng-Maddick <mbm@aldigital.co.uk> and Ben Laurie (CHATS)>
4277 *) Remote buffer overflow in SSL3 protocol - an attacker could
4278 supply an oversized session ID to a client. (CVE-2002-0656)
4279 [Ben Laurie (CHATS)]
4281 *) Remote buffer overflow in SSL2 protocol - an attacker could
4282 supply an oversized client master key. (CVE-2002-0656)
4283 [Ben Laurie (CHATS)]
4285 Changes between 0.9.6c and 0.9.6d [9 May 2002]
4287 *) Fix crypto/asn1/a_sign.c so that 'parameters' is omitted (not
4288 encoded as NULL) with id-dsa-with-sha1.
4289 [Nils Larsch <nla@trustcenter.de>; problem pointed out by Bodo Moeller]
4291 *) Check various X509_...() return values in apps/req.c.
4292 [Nils Larsch <nla@trustcenter.de>]
4294 *) Fix BASE64 decode (EVP_DecodeUpdate) for data with CR/LF ended lines:
4295 an end-of-file condition would erronously be flagged, when the CRLF
4296 was just at the end of a processed block. The bug was discovered when
4297 processing data through a buffering memory BIO handing the data to a
4298 BASE64-decoding BIO. Bug fund and patch submitted by Pavel Tsekov
4299 <ptsekov@syntrex.com> and Nedelcho Stanev.
4302 *) Implement a countermeasure against a vulnerability recently found
4303 in CBC ciphersuites in SSL 3.0/TLS 1.0: Send an empty fragment
4304 before application data chunks to avoid the use of known IVs
4305 with data potentially chosen by the attacker.
4308 *) Fix length checks in ssl3_get_client_hello().
4311 *) TLS/SSL library bugfix: use s->s3->in_read_app_data differently
4312 to prevent ssl3_read_internal() from incorrectly assuming that
4313 ssl3_read_bytes() found application data while handshake
4314 processing was enabled when in fact s->s3->in_read_app_data was
4315 merely automatically cleared during the initial handshake.
4316 [Bodo Moeller; problem pointed out by Arne Ansper <arne@ats.cyber.ee>]
4318 *) Fix object definitions for Private and Enterprise: they were not
4319 recognized in their shortname (=lowercase) representation. Extend
4320 obj_dat.pl to issue an error when using undefined keywords instead
4321 of silently ignoring the problem (Svenning Sorensen
4322 <sss@sss.dnsalias.net>).
4325 *) Fix DH_generate_parameters() so that it works for 'non-standard'
4326 generators, i.e. generators other than 2 and 5. (Previously, the
4327 code did not properly initialise the 'add' and 'rem' values to
4328 BN_generate_prime().)
4330 In the new general case, we do not insist that 'generator' is
4331 actually a primitive root: This requirement is rather pointless;
4332 a generator of the order-q subgroup is just as good, if not
4336 *) Map new X509 verification errors to alerts. Discovered and submitted by
4337 Tom Wu <tom@arcot.com>.
4340 *) Fix ssl3_pending() (ssl/s3_lib.c) to prevent SSL_pending() from
4341 returning non-zero before the data has been completely received
4342 when using non-blocking I/O.
4343 [Bodo Moeller; problem pointed out by John Hughes]
4345 *) Some of the ciphers missed the strength entry (SSL_LOW etc).
4346 [Ben Laurie, Lutz Jaenicke]
4348 *) Fix bug in SSL_clear(): bad sessions were not removed (found by
4349 Yoram Zahavi <YoramZ@gilian.com>).
4352 *) Add information about CygWin 1.3 and on, and preserve proper
4353 configuration for the versions before that.
4354 [Corinna Vinschen <vinschen@redhat.com> and Richard Levitte]
4356 *) Make removal from session cache (SSL_CTX_remove_session()) more robust:
4357 check whether we deal with a copy of a session and do not delete from
4358 the cache in this case. Problem reported by "Izhar Shoshani Levi"
4359 <izhar@checkpoint.com>.
4362 *) Do not store session data into the internal session cache, if it
4363 is never intended to be looked up (SSL_SESS_CACHE_NO_INTERNAL_LOOKUP
4364 flag is set). Proposed by Aslam <aslam@funk.com>.
4367 *) Have ASN1_BIT_STRING_set_bit() really clear a bit when the requested
4371 *) [In 0.9.6d-engine release:]
4372 Fix a crashbug and a logic bug in hwcrhk_load_pubkey().
4373 [Toomas Kiisk <vix@cyber.ee> via Richard Levitte]
4375 *) Add the configuration target linux-s390x.
4376 [Neale Ferguson <Neale.Ferguson@SoftwareAG-USA.com> via Richard Levitte]
4378 *) The earlier bugfix for the SSL3_ST_SW_HELLO_REQ_C case of
4379 ssl3_accept (ssl/s3_srvr.c) incorrectly used a local flag
4380 variable as an indication that a ClientHello message has been
4381 received. As the flag value will be lost between multiple
4382 invocations of ssl3_accept when using non-blocking I/O, the
4383 function may not be aware that a handshake has actually taken
4384 place, thus preventing a new session from being added to the
4387 To avoid this problem, we now set s->new_session to 2 instead of
4388 using a local variable.
4389 [Lutz Jaenicke, Bodo Moeller]
4391 *) Bugfix: Return -1 from ssl3_get_server_done (ssl3/s3_clnt.c)
4392 if the SSL_R_LENGTH_MISMATCH error is detected.
4393 [Geoff Thorpe, Bodo Moeller]
4395 *) New 'shared_ldflag' column in Configure platform table.
4398 *) Fix EVP_CIPHER_mode macro.
4399 ["Dan S. Camper" <dan@bti.net>]
4401 *) Fix ssl3_read_bytes (ssl/s3_pkt.c): To ignore messages of unknown
4402 type, we must throw them away by setting rr->length to 0.
4403 [D P Chang <dpc@qualys.com>]
4405 Changes between 0.9.6b and 0.9.6c [21 dec 2001]
4407 *) Fix BN_rand_range bug pointed out by Dominikus Scherkl
4408 <Dominikus.Scherkl@biodata.com>. (The previous implementation
4409 worked incorrectly for those cases where range = 10..._2 and
4410 3*range is two bits longer than range.)
4413 *) Only add signing time to PKCS7 structures if it is not already
4417 *) Fix crypto/objects/objects.h: "ld-ce" should be "id-ce",
4418 OBJ_ld_ce should be OBJ_id_ce.
4419 Also some ip-pda OIDs in crypto/objects/objects.txt were
4420 incorrect (cf. RFC 3039).
4421 [Matt Cooper, Frederic Giudicelli, Bodo Moeller]
4423 *) Release CRYPTO_LOCK_DYNLOCK when CRYPTO_destroy_dynlockid()
4424 returns early because it has nothing to do.
4425 [Andy Schneider <andy.schneider@bjss.co.uk>]
4427 *) [In 0.9.6c-engine release:]
4428 Fix mutex callback return values in crypto/engine/hw_ncipher.c.
4429 [Andy Schneider <andy.schneider@bjss.co.uk>]
4431 *) [In 0.9.6c-engine release:]
4432 Add support for Cryptographic Appliance's keyserver technology.
4433 (Use engine 'keyclient')
4434 [Cryptographic Appliances and Geoff Thorpe]
4436 *) Add a configuration entry for OS/390 Unix. The C compiler 'c89'
4437 is called via tools/c89.sh because arguments have to be
4438 rearranged (all '-L' options must appear before the first object
4440 [Richard Shapiro <rshapiro@abinitio.com>]
4442 *) [In 0.9.6c-engine release:]
4443 Add support for Broadcom crypto accelerator cards, backported
4445 [Broadcom, Nalin Dahyabhai <nalin@redhat.com>, Mark Cox]
4447 *) [In 0.9.6c-engine release:]
4448 Add support for SureWare crypto accelerator cards from
4449 Baltimore Technologies. (Use engine 'sureware')
4450 [Baltimore Technologies and Mark Cox]
4452 *) [In 0.9.6c-engine release:]
4453 Add support for crypto accelerator cards from Accelerated
4454 Encryption Processing, www.aep.ie. (Use engine 'aep')
4455 [AEP Inc. and Mark Cox]
4457 *) Add a configuration entry for gcc on UnixWare.
4458 [Gary Benson <gbenson@redhat.com>]
4460 *) Change ssl/s2_clnt.c and ssl/s2_srvr.c so that received handshake
4461 messages are stored in a single piece (fixed-length part and
4462 variable-length part combined) and fix various bugs found on the way.
4465 *) Disable caching in BIO_gethostbyname(), directly use gethostbyname()
4466 instead. BIO_gethostbyname() does not know what timeouts are
4467 appropriate, so entries would stay in cache even when they have
4469 [Bodo Moeller; problem pointed out by Rich Salz <rsalz@zolera.com>
4471 *) Change ssl23_get_client_hello (ssl/s23_srvr.c) behaviour when
4472 faced with a pathologically small ClientHello fragment that does
4473 not contain client_version: Instead of aborting with an error,
4474 simply choose the highest available protocol version (i.e.,
4475 TLS 1.0 unless it is disabled). In practice, ClientHello
4476 messages are never sent like this, but this change gives us
4477 strictly correct behaviour at least for TLS.
4480 *) Fix SSL handshake functions and SSL_clear() such that SSL_clear()
4481 never resets s->method to s->ctx->method when called from within
4482 one of the SSL handshake functions.
4483 [Bodo Moeller; problem pointed out by Niko Baric]
4485 *) In ssl3_get_client_hello (ssl/s3_srvr.c), generate a fatal alert
4486 (sent using the client's version number) if client_version is
4487 smaller than the protocol version in use. Also change
4488 ssl23_get_client_hello (ssl/s23_srvr.c) to select TLS 1.0 if
4489 the client demanded SSL 3.0 but only TLS 1.0 is enabled; then
4490 the client will at least see that alert.
4493 *) Fix ssl3_get_message (ssl/s3_both.c) to handle message fragmentation
4497 *) Avoid infinite loop in ssl3_get_message (ssl/s3_both.c) if a
4498 client receives HelloRequest while in a handshake.
4499 [Bodo Moeller; bug noticed by Andy Schneider <andy.schneider@bjss.co.uk>]
4501 *) Bugfix in ssl3_accept (ssl/s3_srvr.c): Case SSL3_ST_SW_HELLO_REQ_C
4502 should end in 'break', not 'goto end' which circuments various
4503 cleanups done in state SSL_ST_OK. But session related stuff
4504 must be disabled for SSL_ST_OK in the case that we just sent a
4507 Also avoid some overhead by not calling ssl_init_wbio_buffer()
4508 before just sending a HelloRequest.
4509 [Bodo Moeller, Eric Rescorla <ekr@rtfm.com>]
4511 *) Fix ssl/s3_enc.c, ssl/t1_enc.c and ssl/s3_pkt.c so that we don't
4512 reveal whether illegal block cipher padding was found or a MAC
4513 verification error occured. (Neither SSLerr() codes nor alerts
4514 are directly visible to potential attackers, but the information
4515 may leak via logfiles.)
4517 Similar changes are not required for the SSL 2.0 implementation
4518 because the number of padding bytes is sent in clear for SSL 2.0,
4519 and the extra bytes are just ignored. However ssl/s2_pkt.c
4520 failed to verify that the purported number of padding bytes is in
4524 *) Add OpenUNIX-8 support including shared libraries
4525 (Boyd Lynn Gerber <gerberb@zenez.com>).
4528 *) Improve RSA_padding_check_PKCS1_OAEP() check again to avoid
4529 'wristwatch attack' using huge encoding parameters (cf.
4530 James H. Manger's CRYPTO 2001 paper). Note that the
4531 RSA_PKCS1_OAEP_PADDING case of RSA_private_decrypt() does not use
4532 encoding parameters and hence was not vulnerable.
4535 *) BN_sqr() bug fix.
4536 [Ulf Möller, reported by Jim Ellis <jim.ellis@cavium.com>]
4538 *) Rabin-Miller test analyses assume uniformly distributed witnesses,
4539 so use BN_pseudo_rand_range() instead of using BN_pseudo_rand()
4540 followed by modular reduction.
4541 [Bodo Moeller; pointed out by Adam Young <AYoung1@NCSUS.JNJ.COM>]
4543 *) Add BN_pseudo_rand_range() with obvious functionality: BN_rand_range()
4544 equivalent based on BN_pseudo_rand() instead of BN_rand().
4547 *) s3_srvr.c: allow sending of large client certificate lists (> 16 kB).
4548 This function was broken, as the check for a new client hello message
4549 to handle SGC did not allow these large messages.
4550 (Tracked down by "Douglas E. Engert" <deengert@anl.gov>.)
4553 *) Add alert descriptions for TLSv1 to SSL_alert_desc_string[_long]().
4556 *) Fix buggy behaviour of BIO_get_num_renegotiates() and BIO_ctrl()
4557 for BIO_C_GET_WRITE_BUF_SIZE ("Stephen Hinton" <shinton@netopia.com>).
4560 *) Rework the configuration and shared library support for Tru64 Unix.
4561 The configuration part makes use of modern compiler features and
4562 still retains old compiler behavior for those that run older versions
4563 of the OS. The shared library support part includes a variant that
4564 uses the RPATH feature, and is available through the special
4565 configuration target "alpha-cc-rpath", which will never be selected
4567 [Tim Mooney <mooney@dogbert.cc.ndsu.NoDak.edu> via Richard Levitte]
4569 *) In ssl3_get_key_exchange (ssl/s3_clnt.c), call ssl3_get_message()
4570 with the same message size as in ssl3_get_certificate_request().
4571 Otherwise, if no ServerKeyExchange message occurs, CertificateRequest
4572 messages might inadvertently be reject as too long.
4573 [Petr Lampa <lampa@fee.vutbr.cz>]
4575 *) Enhanced support for IA-64 Unix platforms (well, Linux and HP-UX).
4578 *) Modified SSL library such that the verify_callback that has been set
4579 specificly for an SSL object with SSL_set_verify() is actually being
4580 used. Before the change, a verify_callback set with this function was
4581 ignored and the verify_callback() set in the SSL_CTX at the time of
4582 the call was used. New function X509_STORE_CTX_set_verify_cb() introduced
4583 to allow the necessary settings.
4586 *) Initialize static variable in crypto/dsa/dsa_lib.c and crypto/dh/dh_lib.c
4587 explicitly to NULL, as at least on Solaris 8 this seems not always to be
4588 done automatically (in contradiction to the requirements of the C
4589 standard). This made problems when used from OpenSSH.
4592 *) In OpenSSL 0.9.6a and 0.9.6b, crypto/dh/dh_key.c ignored
4593 dh->length and always used
4595 BN_rand_range(priv_key, dh->p).
4597 BN_rand_range() is not necessary for Diffie-Hellman, and this
4598 specific range makes Diffie-Hellman unnecessarily inefficient if
4599 dh->length (recommended exponent length) is much smaller than the
4600 length of dh->p. We could use BN_rand_range() if the order of
4601 the subgroup was stored in the DH structure, but we only have
4606 BN_rand(priv_key, l, ...)
4608 where 'l' is dh->length if this is defined, or BN_num_bits(dh->p)-1
4614 RSA_eay_public_encrypt
4615 RSA_eay_private_decrypt
4616 RSA_eay_private_encrypt (signing)
4617 RSA_eay_public_decrypt (signature verification)
4619 (default implementations for RSA_public_encrypt,
4620 RSA_private_decrypt, RSA_private_encrypt, RSA_public_decrypt),
4621 always reject numbers >= n.
4624 *) In crypto/rand/md_rand.c, use a new short-time lock CRYPTO_LOCK_RAND2
4625 to synchronize access to 'locking_thread'. This is necessary on
4626 systems where access to 'locking_thread' (an 'unsigned long'
4627 variable) is not atomic.
4630 *) In crypto/rand/md_rand.c, set 'locking_thread' to current thread's ID
4631 *before* setting the 'crypto_lock_rand' flag. The previous code had
4632 a race condition if 0 is a valid thread ID.
4633 [Travis Vitek <vitek@roguewave.com>]
4635 *) Add support for shared libraries under Irix.
4636 [Albert Chin-A-Young <china@thewrittenword.com>]
4638 *) Add configuration option to build on Linux on both big-endian and
4640 [Ralf Baechle <ralf@uni-koblenz.de>]
4642 *) Add the possibility to create shared libraries on HP-UX.
4645 Changes between 0.9.6a and 0.9.6b [9 Jul 2001]
4647 *) Change ssleay_rand_bytes (crypto/rand/md_rand.c)
4648 to avoid a SSLeay/OpenSSL PRNG weakness pointed out by
4649 Markku-Juhani O. Saarinen <markku-juhani.saarinen@nokia.com>:
4650 PRNG state recovery was possible based on the output of
4651 one PRNG request appropriately sized to gain knowledge on
4652 'md' followed by enough consecutive 1-byte PRNG requests
4653 to traverse all of 'state'.
4655 1. When updating 'md_local' (the current thread's copy of 'md')
4656 during PRNG output generation, hash all of the previous
4657 'md_local' value, not just the half used for PRNG output.
4659 2. Make the number of bytes from 'state' included into the hash
4660 independent from the number of PRNG bytes requested.
4662 The first measure alone would be sufficient to avoid
4663 Markku-Juhani's attack. (Actually it had never occurred
4664 to me that the half of 'md_local' used for chaining was the
4665 half from which PRNG output bytes were taken -- I had always
4666 assumed that the secret half would be used.) The second
4667 measure makes sure that additional data from 'state' is never
4668 mixed into 'md_local' in small portions; this heuristically
4669 further strengthens the PRNG.
4672 *) Fix crypto/bn/asm/mips3.s.
4675 *) When only the key is given to "enc", the IV is undefined. Print out
4676 an error message in this case.
4679 *) Handle special case when X509_NAME is empty in X509 printing routines.
4682 *) In dsa_do_verify (crypto/dsa/dsa_ossl.c), verify that r and s are
4683 positive and less than q.
4686 *) Don't change *pointer in CRYPTO_add_lock() is add_lock_callback is
4687 used: it isn't thread safe and the add_lock_callback should handle
4689 [Paul Rose <Paul.Rose@bridge.com>]
4691 *) Verify that incoming data obeys the block size in
4692 ssl3_enc (ssl/s3_enc.c) and tls1_enc (ssl/t1_enc.c).
4696 [Ulf Möller, Bodo Möller]
4698 *) The countermeasure against Bleichbacher's attack on PKCS #1 v1.5
4699 RSA encryption was accidentally removed in s3_srvr.c in OpenSSL 0.9.5
4700 when fixing the server behaviour for backwards-compatible 'client
4701 hello' messages. (Note that the attack is impractical against
4702 SSL 3.0 and TLS 1.0 anyway because length and version checking
4703 means that the probability of guessing a valid ciphertext is
4704 around 2^-40; see section 5 in Bleichenbacher's CRYPTO '98
4707 Before 0.9.5, the countermeasure (hide the error by generating a
4708 random 'decryption result') did not work properly because
4709 ERR_clear_error() was missing, meaning that SSL_get_error() would
4710 detect the supposedly ignored error.
4712 Both problems are now fixed.
4715 *) In crypto/bio/bf_buff.c, increase DEFAULT_BUFFER_SIZE to 4096
4716 (previously it was 1024).
4719 *) Fix for compatibility mode trust settings: ignore trust settings
4720 unless some valid trust or reject settings are present.
4723 *) Fix for blowfish EVP: its a variable length cipher.
4726 *) Fix various bugs related to DSA S/MIME verification. Handle missing
4727 parameters in DSA public key structures and return an error in the
4728 DSA routines if parameters are absent.
4731 *) In versions up to 0.9.6, RAND_file_name() resorted to file ".rnd"
4732 in the current directory if neither $RANDFILE nor $HOME was set.
4733 RAND_file_name() in 0.9.6a returned NULL in this case. This has
4734 caused some confusion to Windows users who haven't defined $HOME.
4735 Thus RAND_file_name() is changed again: e_os.h can define a
4736 DEFAULT_HOME, which will be used if $HOME is not set.
4737 For Windows, we use "C:"; on other platforms, we still require
4738 environment variables.
4740 *) Move 'if (!initialized) RAND_poll()' into regions protected by
4741 CRYPTO_LOCK_RAND. This is not strictly necessary, but avoids
4742 having multiple threads call RAND_poll() concurrently.
4745 *) In crypto/rand/md_rand.c, replace 'add_do_not_lock' flag by a
4746 combination of a flag and a thread ID variable.
4747 Otherwise while one thread is in ssleay_rand_bytes (which sets the
4748 flag), *other* threads can enter ssleay_add_bytes without obeying
4749 the CRYPTO_LOCK_RAND lock (and may even illegally release the lock
4750 that they do not hold after the first thread unsets add_do_not_lock).
4753 *) Change bctest again: '-x' expressions are not available in all
4757 Changes between 0.9.6 and 0.9.6a [5 Apr 2001]
4759 *) Fix a couple of memory leaks in PKCS7_dataDecode()
4760 [Steve Henson, reported by Heyun Zheng <hzheng@atdsprint.com>]
4762 *) Change Configure and Makefiles to provide EXE_EXT, which will contain
4763 the default extension for executables, if any. Also, make the perl
4764 scripts that use symlink() to test if it really exists and use "cp"
4765 if it doesn't. All this made OpenSSL compilable and installable in
4769 *) Fix for asn1_GetSequence() for indefinite length constructed data.
4770 If SEQUENCE is length is indefinite just set c->slen to the total
4771 amount of data available.
4772 [Steve Henson, reported by shige@FreeBSD.org]
4773 [This change does not apply to 0.9.7.]
4775 *) Change bctest to avoid here-documents inside command substitution
4776 (workaround for FreeBSD /bin/sh bug).
4777 For compatibility with Ultrix, avoid shell functions (introduced
4778 in the bctest version that searches along $PATH).
4781 *) Rename 'des_encrypt' to 'des_encrypt1'. This avoids the clashes
4782 with des_encrypt() defined on some operating systems, like Solaris
4786 *) Check the result of RSA-CRT (see D. Boneh, R. DeMillo, R. Lipton:
4787 On the Importance of Eliminating Errors in Cryptographic
4788 Computations, J. Cryptology 14 (2001) 2, 101-119,
4789 http://theory.stanford.edu/~dabo/papers/faults.ps.gz).
4792 *) MIPS assembler BIGNUM division bug fix.
4795 *) Disabled incorrect Alpha assembler code.
4798 *) Fix PKCS#7 decode routines so they correctly update the length
4799 after reading an EOC for the EXPLICIT tag.
4801 [This change does not apply to 0.9.7.]
4803 *) Fix bug in PKCS#12 key generation routines. This was triggered
4804 if a 3DES key was generated with a 0 initial byte. Include
4805 PKCS12_BROKEN_KEYGEN compilation option to retain the old
4806 (but broken) behaviour.
4809 *) Enhance bctest to search for a working bc along $PATH and print
4811 [Tim Rice <tim@multitalents.net> via Richard Levitte]
4813 *) Fix memory leaks in err.c: free err_data string if necessary;
4814 don't write to the wrong index in ERR_set_error_data.
4817 *) Implement ssl23_peek (analogous to ssl23_read), which previously
4821 *) Replace rdtsc with _emit statements for VC++ version 5.
4822 [Jeremy Cooper <jeremy@baymoo.org>]
4824 *) Make it possible to reuse SSLv2 sessions.
4827 *) In copy_email() check for >= 0 as a return value for
4828 X509_NAME_get_index_by_NID() since 0 is a valid index.
4829 [Steve Henson reported by Massimiliano Pala <madwolf@opensca.org>]
4831 *) Avoid coredump with unsupported or invalid public keys by checking if
4832 X509_get_pubkey() fails in PKCS7_verify(). Fix memory leak when
4833 PKCS7_verify() fails with non detached data.
4836 *) Don't use getenv in library functions when run as setuid/setgid.
4837 New function OPENSSL_issetugid().
4840 *) Avoid false positives in memory leak detection code (crypto/mem_dbg.c)
4841 due to incorrect handling of multi-threading:
4843 1. Fix timing glitch in the MemCheck_off() portion of CRYPTO_mem_ctrl().
4845 2. Fix logical glitch in is_MemCheck_on() aka CRYPTO_is_mem_check_on().
4847 3. Count how many times MemCheck_off() has been called so that
4848 nested use can be treated correctly. This also avoids
4849 inband-signalling in the previous code (which relied on the
4850 assumption that thread ID 0 is impossible).
4853 *) Add "-rand" option also to s_client and s_server.
4856 *) Fix CPU detection on Irix 6.x.
4857 [Kurt Hockenbury <khockenb@stevens-tech.edu> and
4858 "Bruce W. Forsberg" <bruce.forsberg@baesystems.com>]
4860 *) Fix X509_NAME bug which produced incorrect encoding if X509_NAME
4863 [This change does not apply to 0.9.7.]
4865 *) Use the cached encoding of an X509_NAME structure rather than
4866 copying it. This is apparently the reason for the libsafe "errors"
4867 but the code is actually correct.
4870 *) Add new function BN_rand_range(), and fix DSA_sign_setup() to prevent
4871 Bleichenbacher's DSA attack.
4872 Extend BN_[pseudo_]rand: As before, top=1 forces the highest two bits
4873 to be set and top=0 forces the highest bit to be set; top=-1 is new
4874 and leaves the highest bit random.
4875 [Ulf Moeller, Bodo Moeller]
4877 *) In the NCONF_...-based implementations for CONF_... queries
4878 (crypto/conf/conf_lib.c), if the input LHASH is NULL, avoid using
4879 a temporary CONF structure with the data component set to NULL
4880 (which gives segmentation faults in lh_retrieve).
4881 Instead, use NULL for the CONF pointer in CONF_get_string and
4882 CONF_get_number (which may use environment variables) and directly
4883 return NULL from CONF_get_section.
4886 *) Fix potential buffer overrun for EBCDIC.
4889 *) Tolerate nonRepudiation as being valid for S/MIME signing and certSign
4890 keyUsage if basicConstraints absent for a CA.
4893 *) Make SMIME_write_PKCS7() write mail header values with a format that
4894 is more generally accepted (no spaces before the semicolon), since
4895 some programs can't parse those values properly otherwise. Also make
4896 sure BIO's that break lines after each write do not create invalid
4900 *) Make the CRL encoding routines work with empty SEQUENCE OF. The
4901 macros previously used would not encode an empty SEQUENCE OF
4902 and break the signature.
4904 [This change does not apply to 0.9.7.]
4906 *) Zero the premaster secret after deriving the master secret in
4910 *) Add some EVP_add_digest_alias registrations (as found in
4911 OpenSSL_add_all_digests()) to SSL_library_init()
4912 aka OpenSSL_add_ssl_algorithms(). This provides improved
4913 compatibility with peers using X.509 certificates
4914 with unconventional AlgorithmIdentifier OIDs.
4917 *) Fix for Irix with NO_ASM.
4918 ["Bruce W. Forsberg" <bruce.forsberg@baesystems.com>]
4920 *) ./config script fixes.
4921 [Ulf Moeller, Richard Levitte]
4923 *) Fix 'openssl passwd -1'.
4926 *) Change PKCS12_key_gen_asc() so it can cope with non null
4927 terminated strings whose length is passed in the passlen
4928 parameter, for example from PEM callbacks. This was done
4929 by adding an extra length parameter to asc2uni().
4930 [Steve Henson, reported by <oddissey@samsung.co.kr>]
4932 *) Fix C code generated by 'openssl dsaparam -C': If a BN_bin2bn
4933 call failed, free the DSA structure.
4936 *) Fix to uni2asc() to cope with zero length Unicode strings.
4937 These are present in some PKCS#12 files.
4940 *) Increase s2->wbuf allocation by one byte in ssl2_new (ssl/s2_lib.c).
4941 Otherwise do_ssl_write (ssl/s2_pkt.c) will write beyond buffer limits
4942 when writing a 32767 byte record.
4943 [Bodo Moeller; problem reported by Eric Day <eday@concentric.net>]
4945 *) In RSA_eay_public_{en,ed}crypt and RSA_eay_mod_exp (rsa_eay.c),
4946 obtain lock CRYPTO_LOCK_RSA before setting rsa->_method_mod_{n,p,q}.
4948 (RSA objects have a reference count access to which is protected
4949 by CRYPTO_LOCK_RSA [see rsa_lib.c, s3_srvr.c, ssl_cert.c, ssl_rsa.c],
4950 so they are meant to be shared between threads.)
4951 [Bodo Moeller, Geoff Thorpe; original patch submitted by
4952 "Reddie, Steven" <Steven.Reddie@ca.com>]
4954 *) Fix a deadlock in CRYPTO_mem_leaks().
4957 *) Use better test patterns in bntest.
4960 *) rand_win.c fix for Borland C.
4963 *) BN_rshift bugfix for n == 0.
4966 *) Add a 'bctest' script that checks for some known 'bc' bugs
4967 so that 'make test' does not abort just because 'bc' is broken.
4970 *) Store verify_result within SSL_SESSION also for client side to
4971 avoid potential security hole. (Re-used sessions on the client side
4972 always resulted in verify_result==X509_V_OK, not using the original
4973 result of the server certificate verification.)
4976 *) Fix ssl3_pending: If the record in s->s3->rrec is not of type
4977 SSL3_RT_APPLICATION_DATA, return 0.
4978 Similarly, change ssl2_pending to return 0 if SSL_in_init(s) is true.
4982 Both ssl2_peek and ssl3_peek, which were totally broken in earlier
4983 releases, have been re-implemented by renaming the previous
4984 implementations of ssl2_read and ssl3_read to ssl2_read_internal
4985 and ssl3_read_internal, respectively, and adding 'peek' parameters
4986 to them. The new ssl[23]_{read,peek} functions are calls to
4987 ssl[23]_read_internal with the 'peek' flag set appropriately.
4988 A 'peek' parameter has also been added to ssl3_read_bytes, which
4989 does the actual work for ssl3_read_internal.
4992 *) Initialise "ex_data" member of RSA/DSA/DH structures prior to calling
4993 the method-specific "init()" handler. Also clean up ex_data after
4994 calling the method-specific "finish()" handler. Previously, this was
4995 happening the other way round.
4998 *) Increase BN_CTX_NUM (the number of BIGNUMs in a BN_CTX) to 16.
4999 The previous value, 12, was not always sufficient for BN_mod_exp().
5002 *) Make sure that shared libraries get the internal name engine with
5003 the full version number and not just 0. This should mark the
5004 shared libraries as not backward compatible. Of course, this should
5005 be changed again when we can guarantee backward binary compatibility.
5008 *) Fix typo in get_cert_by_subject() in by_dir.c
5009 [Jean-Marc Desperrier <jean-marc.desperrier@certplus.com>]
5011 *) Rework the system to generate shared libraries:
5013 - Make note of the expected extension for the shared libraries and
5014 if there is a need for symbolic links from for example libcrypto.so.0
5015 to libcrypto.so.0.9.7. There is extended info in Configure for
5018 - Make as few rebuilds of the shared libraries as possible.
5020 - Still avoid linking the OpenSSL programs with the shared libraries.
5022 - When installing, install the shared libraries separately from the
5026 *) Fix SSL_CTX_set_read_ahead macro to actually use its argument.
5028 Copy SSL_CTX's read_ahead flag to SSL object directly in SSL_new
5029 and not in SSL_clear because the latter is also used by the
5030 accept/connect functions; previously, the settings made by
5031 SSL_set_read_ahead would be lost during the handshake.
5032 [Bodo Moeller; problems reported by Anders Gertz <gertz@epact.se>]
5034 *) Correct util/mkdef.pl to be selective about disabled algorithms.
5035 Previously, it would create entries for disableed algorithms no
5039 *) Added several new manual pages for SSL_* function.
5042 Changes between 0.9.5a and 0.9.6 [24 Sep 2000]
5044 *) In ssl23_get_client_hello, generate an error message when faced
5045 with an initial SSL 3.0/TLS record that is too small to contain the
5046 first two bytes of the ClientHello message, i.e. client_version.
5047 (Note that this is a pathologic case that probably has never happened
5048 in real life.) The previous approach was to use the version number
5049 from the record header as a substitute; but our protocol choice
5050 should not depend on that one because it is not authenticated
5051 by the Finished messages.
5054 *) More robust randomness gathering functions for Windows.
5055 [Jeffrey Altman <jaltman@columbia.edu>]
5057 *) For compatibility reasons if the flag X509_V_FLAG_ISSUER_CHECK is
5058 not set then we don't setup the error code for issuer check errors
5059 to avoid possibly overwriting other errors which the callback does
5060 handle. If an application does set the flag then we assume it knows
5061 what it is doing and can handle the new informational codes
5065 *) Fix for a nasty bug in ASN1_TYPE handling. ASN1_TYPE is used for
5066 a general "ANY" type, as such it should be able to decode anything
5067 including tagged types. However it didn't check the class so it would
5068 wrongly interpret tagged types in the same way as their universal
5069 counterpart and unknown types were just rejected. Changed so that the
5070 tagged and unknown types are handled in the same way as a SEQUENCE:
5071 that is the encoding is stored intact. There is also a new type
5072 "V_ASN1_OTHER" which is used when the class is not universal, in this
5073 case we have no idea what the actual type is so we just lump them all
5077 *) On VMS, stdout may very well lead to a file that is written to
5078 in a record-oriented fashion. That means that every write() will
5079 write a separate record, which will be read separately by the
5080 programs trying to read from it. This can be very confusing.
5082 The solution is to put a BIO filter in the way that will buffer
5083 text until a linefeed is reached, and then write everything a
5084 line at a time, so every record written will be an actual line,
5085 not chunks of lines and not (usually doesn't happen, but I've
5086 seen it once) several lines in one record. BIO_f_linebuffer() is
5089 Currently, it's a VMS-only method, because that's where it has
5090 been tested well enough.
5093 *) Remove 'optimized' squaring variant in BN_mod_mul_montgomery,
5094 it can return incorrect results.
5095 (Note: The buggy variant was not enabled in OpenSSL 0.9.5a,
5096 but it was in 0.9.6-beta[12].)
5099 *) Disable the check for content being present when verifying detached
5100 signatures in pk7_smime.c. Some versions of Netscape (wrongly)
5101 include zero length content when signing messages.
5104 *) New BIO_shutdown_wr macro, which invokes the BIO_C_SHUTDOWN_WR
5105 BIO_ctrl (for BIO pairs).
5108 *) Add DSO method for VMS.
5111 *) Bug fix: Montgomery multiplication could produce results with the
5115 *) Add RPM specification openssl.spec and modify it to build three
5116 packages. The default package contains applications, application
5117 documentation and run-time libraries. The devel package contains
5118 include files, static libraries and function documentation. The
5119 doc package contains the contents of the doc directory. The original
5120 openssl.spec was provided by Damien Miller <djm@mindrot.org>.
5123 *) Add a large number of documentation files for many SSL routines.
5124 [Lutz Jaenicke <Lutz.Jaenicke@aet.TU-Cottbus.DE>]
5126 *) Add a configuration entry for Sony News 4.
5127 [NAKAJI Hiroyuki <nakaji@tutrp.tut.ac.jp>]
5129 *) Don't set the two most significant bits to one when generating a
5130 random number < q in the DSA library.
5133 *) New SSL API mode 'SSL_MODE_AUTO_RETRY'. This disables the default
5134 behaviour that SSL_read may result in SSL_ERROR_WANT_READ (even if
5135 the underlying transport is blocking) if a handshake took place.
5136 (The default behaviour is needed by applications such as s_client
5137 and s_server that use select() to determine when to use SSL_read;
5138 but for applications that know in advance when to expect data, it
5139 just makes things more complicated.)
5142 *) Add RAND_egd_bytes(), which gives control over the number of bytes read
5146 *) Add a few more EBCDIC conditionals that make `req' and `x509'
5147 work better on such systems.
5148 [Martin Kraemer <Martin.Kraemer@MchP.Siemens.De>]
5150 *) Add two demo programs for PKCS12_parse() and PKCS12_create().
5151 Update PKCS12_parse() so it copies the friendlyName and the
5152 keyid to the certificates aux info.
5155 *) Fix bug in PKCS7_verify() which caused an infinite loop
5156 if there was more than one signature.
5157 [Sven Uszpelkat <su@celocom.de>]
5159 *) Major change in util/mkdef.pl to include extra information
5160 about each symbol, as well as presentig variables as well
5161 as functions. This change means that there's n more need
5162 to rebuild the .num files when some algorithms are excluded.
5165 *) Allow the verify time to be set by an application,
5166 rather than always using the current time.
5169 *) Phase 2 verify code reorganisation. The certificate
5170 verify code now looks up an issuer certificate by a
5171 number of criteria: subject name, authority key id
5172 and key usage. It also verifies self signed certificates
5173 by the same criteria. The main comparison function is
5174 X509_check_issued() which performs these checks.
5176 Lot of changes were necessary in order to support this
5177 without completely rewriting the lookup code.
5179 Authority and subject key identifier are now cached.
5181 The LHASH 'certs' is X509_STORE has now been replaced
5182 by a STACK_OF(X509_OBJECT). This is mainly because an
5183 LHASH can't store or retrieve multiple objects with
5184 the same hash value.
5186 As a result various functions (which were all internal
5187 use only) have changed to handle the new X509_STORE
5188 structure. This will break anything that messed round
5189 with X509_STORE internally.
5191 The functions X509_STORE_add_cert() now checks for an
5192 exact match, rather than just subject name.
5194 The X509_STORE API doesn't directly support the retrieval
5195 of multiple certificates matching a given criteria, however
5196 this can be worked round by performing a lookup first
5197 (which will fill the cache with candidate certificates)
5198 and then examining the cache for matches. This is probably
5199 the best we can do without throwing out X509_LOOKUP
5200 entirely (maybe later...).
5202 The X509_VERIFY_CTX structure has been enhanced considerably.
5204 All certificate lookup operations now go via a get_issuer()
5205 callback. Although this currently uses an X509_STORE it
5206 can be replaced by custom lookups. This is a simple way
5207 to bypass the X509_STORE hackery necessary to make this
5208 work and makes it possible to use more efficient techniques
5209 in future. A very simple version which uses a simple
5210 STACK for its trusted certificate store is also provided
5211 using X509_STORE_CTX_trusted_stack().
5213 The verify_cb() and verify() callbacks now have equivalents
5214 in the X509_STORE_CTX structure.
5216 X509_STORE_CTX also has a 'flags' field which can be used
5217 to customise the verify behaviour.
5220 *) Add new PKCS#7 signing option PKCS7_NOSMIMECAP which
5221 excludes S/MIME capabilities.
5224 *) When a certificate request is read in keep a copy of the
5225 original encoding of the signed data and use it when outputing
5226 again. Signatures then use the original encoding rather than
5227 a decoded, encoded version which may cause problems if the
5228 request is improperly encoded.
5231 *) For consistency with other BIO_puts implementations, call
5232 buffer_write(b, ...) directly in buffer_puts instead of calling
5235 In BIO_puts, increment b->num_write as in BIO_write.
5236 [Peter.Sylvester@EdelWeb.fr]
5238 *) Fix BN_mul_word for the case where the word is 0. (We have to use
5239 BN_zero, we may not return a BIGNUM with an array consisting of
5243 *) Avoid calling abort() from within the library when problems are
5244 detected, except if preprocessor symbols have been defined
5245 (such as REF_CHECK, BN_DEBUG etc.).
5248 *) New openssl application 'rsautl'. This utility can be
5249 used for low level RSA operations. DER public key
5250 BIO/fp routines also added.
5253 *) New Configure entry and patches for compiling on QNX 4.
5254 [Andreas Schneider <andreas@ds3.etech.fh-hamburg.de>]
5256 *) A demo state-machine implementation was sponsored by
5257 Nuron (http://www.nuron.com/) and is now available in
5258 demos/state_machine.
5261 *) New options added to the 'dgst' utility for signature
5262 generation and verification.
5265 *) Unrecognized PKCS#7 content types are now handled via a
5266 catch all ASN1_TYPE structure. This allows unsupported
5267 types to be stored as a "blob" and an application can
5268 encode and decode it manually.
5271 *) Fix various signed/unsigned issues to make a_strex.c
5273 [Oscar Jacobsson <oscar.jacobsson@celocom.com>]
5275 *) ASN1 fixes. i2d_ASN1_OBJECT was not returning the correct
5276 length if passed a buffer. ASN1_INTEGER_to_BN failed
5277 if passed a NULL BN and its argument was negative.
5278 [Steve Henson, pointed out by Sven Heiberg <sven@tartu.cyber.ee>]
5280 *) Modification to PKCS#7 encoding routines to output definite
5281 length encoding. Since currently the whole structures are in
5282 memory there's not real point in using indefinite length
5283 constructed encoding. However if OpenSSL is compiled with
5284 the flag PKCS7_INDEFINITE_ENCODING the old form is used.
5287 *) Added BIO_vprintf() and BIO_vsnprintf().
5290 *) Added more prefixes to parse for in the the strings written
5291 through a logging bio, to cover all the levels that are available
5292 through syslog. The prefixes are now:
5294 PANIC, EMERG, EMR => LOG_EMERG
5295 ALERT, ALR => LOG_ALERT
5296 CRIT, CRI => LOG_CRIT
5297 ERROR, ERR => LOG_ERR
5298 WARNING, WARN, WAR => LOG_WARNING
5299 NOTICE, NOTE, NOT => LOG_NOTICE
5300 INFO, INF => LOG_INFO
5301 DEBUG, DBG => LOG_DEBUG
5303 and as before, if none of those prefixes are present at the
5304 beginning of the string, LOG_ERR is chosen.
5306 On Win32, the LOG_* levels are mapped according to this:
5308 LOG_EMERG, LOG_ALERT, LOG_CRIT, LOG_ERR => EVENTLOG_ERROR_TYPE
5309 LOG_WARNING => EVENTLOG_WARNING_TYPE
5310 LOG_NOTICE, LOG_INFO, LOG_DEBUG => EVENTLOG_INFORMATION_TYPE
5314 *) Made it possible to reconfigure with just the configuration
5315 argument "reconf" or "reconfigure". The command line arguments
5316 are stored in Makefile.ssl in the variable CONFIGURE_ARGS,
5317 and are retrieved from there when reconfiguring.
5321 [Assar Westerlund <assar@sics.se>, Richard Levitte]
5323 *) Add the arguments -CAfile and -CApath to the pkcs12 utility.
5326 *) The obj_dat.pl script was messing up the sorting of object
5327 names. The reason was that it compared the quoted version
5328 of strings as a result "OCSP" > "OCSP Signing" because
5329 " > SPACE. Changed script to store unquoted versions of
5330 names and add quotes on output. It was also omitting some
5331 names from the lookup table if they were given a default
5332 value (that is if SN is missing it is given the same
5333 value as LN and vice versa), these are now added on the
5334 grounds that if an object has a name we should be able to
5335 look it up. Finally added warning output when duplicate
5336 short or long names are found.
5339 *) Changes needed for Tandem NSK.
5340 [Scott Uroff <scott@xypro.com>]
5342 *) Fix SSL 2.0 rollback checking: Due to an off-by-one error in
5343 RSA_padding_check_SSLv23(), special padding was never detected
5344 and thus the SSL 3.0/TLS 1.0 countermeasure against protocol
5345 version rollback attacks was not effective.
5347 In s23_clnt.c, don't use special rollback-attack detection padding
5348 (RSA_SSLV23_PADDING) if SSL 2.0 is the only protocol enabled in the
5349 client; similarly, in s23_srvr.c, don't do the rollback check if
5350 SSL 2.0 is the only protocol enabled in the server.
5353 *) Make it possible to get hexdumps of unprintable data with 'openssl
5354 asn1parse'. By implication, the functions ASN1_parse_dump() and
5355 BIO_dump_indent() are added.
5358 *) New functions ASN1_STRING_print_ex() and X509_NAME_print_ex()
5359 these print out strings and name structures based on various
5360 flags including RFC2253 support and proper handling of
5361 multibyte characters. Added options to the 'x509' utility
5362 to allow the various flags to be set.
5365 *) Various fixes to use ASN1_TIME instead of ASN1_UTCTIME.
5366 Also change the functions X509_cmp_current_time() and
5367 X509_gmtime_adj() work with an ASN1_TIME structure,
5368 this will enable certificates using GeneralizedTime in validity
5369 dates to be checked.
5372 *) Make the NEG_PUBKEY_BUG code (which tolerates invalid
5373 negative public key encodings) on by default,
5374 NO_NEG_PUBKEY_BUG can be set to disable it.
5377 *) New function c2i_ASN1_OBJECT() which acts on ASN1_OBJECT
5378 content octets. An i2c_ASN1_OBJECT is unnecessary because
5379 the encoding can be trivially obtained from the structure.
5382 *) crypto/err.c locking bugfix: Use write locks (CRYPTO_w_[un]lock),
5383 not read locks (CRYPTO_r_[un]lock).
5386 *) A first attempt at creating official support for shared
5387 libraries through configuration. I've kept it so the
5388 default is static libraries only, and the OpenSSL programs
5389 are always statically linked for now, but there are
5390 preparations for dynamic linking in place.
5391 This has been tested on Linux and Tru64.
5394 *) Randomness polling function for Win9x, as described in:
5395 Peter Gutmann, Software Generation of Practically Strong
5399 *) Fix so PRNG is seeded in req if using an already existing
5403 *) New options to smime application. -inform and -outform
5404 allow alternative formats for the S/MIME message including
5405 PEM and DER. The -content option allows the content to be
5406 specified separately. This should allow things like Netscape
5407 form signing output easier to verify.
5410 *) Fix the ASN1 encoding of tags using the 'long form'.
5413 *) New ASN1 functions, i2c_* and c2i_* for INTEGER and BIT
5414 STRING types. These convert content octets to and from the
5415 underlying type. The actual tag and length octets are
5416 already assumed to have been read in and checked. These
5417 are needed because all other string types have virtually
5418 identical handling apart from the tag. By having versions
5419 of the ASN1 functions that just operate on content octets
5420 IMPLICIT tagging can be handled properly. It also allows
5421 the ASN1_ENUMERATED code to be cut down because ASN1_ENUMERATED
5422 and ASN1_INTEGER are identical apart from the tag.
5425 *) Change the handling of OID objects as follows:
5427 - New object identifiers are inserted in objects.txt, following
5428 the syntax given in objects.README.
5429 - objects.pl is used to process obj_mac.num and create a new
5431 - obj_dat.pl is used to create a new obj_dat.h, using the data in
5434 This is currently kind of a hack, and the perl code in objects.pl
5435 isn't very elegant, but it works as I intended. The simplest way
5436 to check that it worked correctly is to look in obj_dat.h and
5437 check the array nid_objs and make sure the objects haven't moved
5438 around (this is important!). Additions are OK, as well as
5439 consistent name changes.
5442 *) Add BSD-style MD5-based passwords to 'openssl passwd' (option '-1').
5445 *) Addition of the command line parameter '-rand file' to 'openssl req'.
5446 The given file adds to whatever has already been seeded into the
5447 random pool through the RANDFILE configuration file option or
5448 environment variable, or the default random state file.
5451 *) mkstack.pl now sorts each macro group into lexical order.
5452 Previously the output order depended on the order the files
5453 appeared in the directory, resulting in needless rewriting
5457 *) Patches to make OpenSSL compile under Win32 again. Mostly
5458 work arounds for the VC++ problem that it treats func() as
5459 func(void). Also stripped out the parts of mkdef.pl that
5460 added extra typesafe functions: these no longer exist.
5463 *) Reorganisation of the stack code. The macros are now all
5464 collected in safestack.h . Each macro is defined in terms of
5465 a "stack macro" of the form SKM_<name>(type, a, b). The
5466 DEBUG_SAFESTACK is now handled in terms of function casts,
5467 this has the advantage of retaining type safety without the
5468 use of additional functions. If DEBUG_SAFESTACK is not defined
5469 then the non typesafe macros are used instead. Also modified the
5470 mkstack.pl script to handle the new form. Needs testing to see
5471 if which (if any) compilers it chokes and maybe make DEBUG_SAFESTACK
5472 the default if no major problems. Similar behaviour for ASN1_SET_OF
5473 and PKCS12_STACK_OF.
5476 *) When some versions of IIS use the 'NET' form of private key the
5477 key derivation algorithm is different. Normally MD5(password) is
5478 used as a 128 bit RC4 key. In the modified case
5479 MD5(MD5(password) + "SGCKEYSALT") is used insted. Added some
5480 new functions i2d_RSA_NET(), d2i_RSA_NET() etc which are the same
5481 as the old Netscape_RSA functions except they have an additional
5482 'sgckey' parameter which uses the modified algorithm. Also added
5483 an -sgckey command line option to the rsa utility. Thanks to
5484 Adrian Peck <bertie@ncipher.com> for posting details of the modified
5485 algorithm to openssl-dev.
5488 *) The evp_local.h macros were using 'c.##kname' which resulted in
5489 invalid expansion on some systems (SCO 5.0.5 for example).
5490 Corrected to 'c.kname'.
5491 [Phillip Porch <root@theporch.com>]
5493 *) New X509_get1_email() and X509_REQ_get1_email() functions that return
5494 a STACK of email addresses from a certificate or request, these look
5495 in the subject name and the subject alternative name extensions and
5496 omit any duplicate addresses.
5499 *) Re-implement BN_mod_exp2_mont using independent (and larger) windows.
5500 This makes DSA verification about 2 % faster.
5503 *) Increase maximum window size in BN_mod_exp_... to 6 bits instead of 5
5504 (meaning that now 2^5 values will be precomputed, which is only 4 KB
5505 plus overhead for 1024 bit moduli).
5506 This makes exponentiations about 0.5 % faster for 1024 bit
5507 exponents (as measured by "openssl speed rsa2048").
5510 *) Rename memory handling macros to avoid conflicts with other
5512 Malloc => OPENSSL_malloc
5513 Malloc_locked => OPENSSL_malloc_locked
5514 Realloc => OPENSSL_realloc
5515 Free => OPENSSL_free
5518 *) New function BN_mod_exp_mont_word for small bases (roughly 15%
5519 faster than BN_mod_exp_mont, i.e. 7% for a full DH exchange).
5522 *) CygWin32 support.
5523 [John Jarvie <jjarvie@newsguy.com>]
5525 *) The type-safe stack code has been rejigged. It is now only compiled
5526 in when OpenSSL is configured with the DEBUG_SAFESTACK option and
5527 by default all type-specific stack functions are "#define"d back to
5528 standard stack functions. This results in more streamlined output
5529 but retains the type-safety checking possibilities of the original
5533 *) The STACK code has been cleaned up, and certain type declarations
5534 that didn't make a lot of sense have been brought in line. This has
5535 also involved a cleanup of sorts in safestack.h to more correctly
5536 map type-safe stack functions onto their plain stack counterparts.
5537 This work has also resulted in a variety of "const"ifications of
5538 lots of the code, especially "_cmp" operations which should normally
5539 be prototyped with "const" parameters anyway.
5542 *) When generating bytes for the first time in md_rand.c, 'stir the pool'
5543 by seeding with STATE_SIZE dummy bytes (with zero entropy count).
5544 (The PRNG state consists of two parts, the large pool 'state' and 'md',
5545 where all of 'md' is used each time the PRNG is used, but 'state'
5546 is used only indexed by a cyclic counter. As entropy may not be
5547 well distributed from the beginning, 'md' is important as a
5548 chaining variable. However, the output function chains only half
5549 of 'md', i.e. 80 bits. ssleay_rand_add, on the other hand, chains
5550 all of 'md', and seeding with STATE_SIZE dummy bytes will result
5551 in all of 'state' being rewritten, with the new values depending
5552 on virtually all of 'md'. This overcomes the 80 bit limitation.)
5555 *) In ssl/s2_clnt.c and ssl/s3_clnt.c, call ERR_clear_error() when
5556 the handshake is continued after ssl_verify_cert_chain();
5557 otherwise, if SSL_VERIFY_NONE is set, remaining error codes
5558 can lead to 'unexplainable' connection aborts later.
5559 [Bodo Moeller; problem tracked down by Lutz Jaenicke]
5561 *) Major EVP API cipher revision.
5562 Add hooks for extra EVP features. This allows various cipher
5563 parameters to be set in the EVP interface. Support added for variable
5564 key length ciphers via the EVP_CIPHER_CTX_set_key_length() function and
5565 setting of RC2 and RC5 parameters.
5567 Modify EVP_OpenInit() and EVP_SealInit() to cope with variable key length
5570 Remove lots of duplicated code from the EVP library. For example *every*
5571 cipher init() function handles the 'iv' in the same way according to the
5572 cipher mode. They also all do nothing if the 'key' parameter is NULL and
5573 for CFB and OFB modes they zero ctx->num.
5575 New functionality allows removal of S/MIME code RC2 hack.
5577 Most of the routines have the same form and so can be declared in terms
5580 By shifting this to the top level EVP_CipherInit() it can be removed from
5581 all individual ciphers. If the cipher wants to handle IVs or keys
5582 differently it can set the EVP_CIPH_CUSTOM_IV or EVP_CIPH_ALWAYS_CALL_INIT
5585 Change lots of functions like EVP_EncryptUpdate() to now return a
5586 value: although software versions of the algorithms cannot fail
5587 any installed hardware versions can.
5590 *) Implement SSL_OP_TLS_ROLLBACK_BUG: In ssl3_get_client_key_exchange, if
5591 this option is set, tolerate broken clients that send the negotiated
5592 protocol version number instead of the requested protocol version
5596 *) Call dh_tmp_cb (set by ..._TMP_DH_CB) with correct 'is_export' flag;
5597 i.e. non-zero for export ciphersuites, zero otherwise.
5598 Previous versions had this flag inverted, inconsistent with
5599 rsa_tmp_cb (..._TMP_RSA_CB).
5600 [Bodo Moeller; problem reported by Amit Chopra]
5602 *) Add missing DSA library text string. Work around for some IIS
5603 key files with invalid SEQUENCE encoding.
5606 *) Add a document (doc/standards.txt) that list all kinds of standards
5607 and so on that are implemented in OpenSSL.
5610 *) Enhance c_rehash script. Old version would mishandle certificates
5611 with the same subject name hash and wouldn't handle CRLs at all.
5612 Added -fingerprint option to crl utility, to support new c_rehash
5616 *) Eliminate non-ANSI declarations in crypto.h and stack.h.
5619 *) Fix for SSL server purpose checking. Server checking was
5620 rejecting certificates which had extended key usage present
5621 but no ssl client purpose.
5622 [Steve Henson, reported by Rene Grosser <grosser@hisolutions.com>]
5624 *) Make PKCS#12 code work with no password. The PKCS#12 spec
5625 is a little unclear about how a blank password is handled.
5626 Since the password in encoded as a BMPString with terminating
5627 double NULL a zero length password would end up as just the
5628 double NULL. However no password at all is different and is
5629 handled differently in the PKCS#12 key generation code. NS
5630 treats a blank password as zero length. MSIE treats it as no
5631 password on export: but it will try both on import. We now do
5632 the same: PKCS12_parse() tries zero length and no password if
5633 the password is set to "" or NULL (NULL is now a valid password:
5634 it wasn't before) as does the pkcs12 application.
5637 *) Bugfixes in apps/x509.c: Avoid a memory leak; and don't use
5638 perror when PEM_read_bio_X509_REQ fails, the error message must
5639 be obtained from the error queue.
5642 *) Avoid 'thread_hash' memory leak in crypto/err/err.c by freeing
5643 it in ERR_remove_state if appropriate, and change ERR_get_state
5644 accordingly to avoid race conditions (this is necessary because
5645 thread_hash is no longer constant once set).
5648 *) Bugfix for linux-elf makefile.one.
5651 *) RSA_get_default_method() will now cause a default
5652 RSA_METHOD to be chosen if one doesn't exist already.
5653 Previously this was only set during a call to RSA_new()
5654 or RSA_new_method(NULL) meaning it was possible for
5655 RSA_get_default_method() to return NULL.
5658 *) Added native name translation to the existing DSO code
5659 that will convert (if the flag to do so is set) filenames
5660 that are sufficiently small and have no path information
5661 into a canonical native form. Eg. "blah" converted to
5662 "libblah.so" or "blah.dll" etc.
5665 *) New function ERR_error_string_n(e, buf, len) which is like
5666 ERR_error_string(e, buf), but writes at most 'len' bytes
5667 including the 0 terminator. For ERR_error_string_n, 'buf'
5669 [Damien Miller <djm@mindrot.org>, Bodo Moeller]
5671 *) CONF library reworked to become more general. A new CONF
5672 configuration file reader "class" is implemented as well as a
5673 new functions (NCONF_*, for "New CONF") to handle it. The now
5674 old CONF_* functions are still there, but are reimplemented to
5675 work in terms of the new functions. Also, a set of functions
5676 to handle the internal storage of the configuration data is
5677 provided to make it easier to write new configuration file
5678 reader "classes" (I can definitely see something reading a
5679 configuration file in XML format, for example), called _CONF_*,
5680 or "the configuration storage API"...
5682 The new configuration file reading functions are:
5684 NCONF_new, NCONF_free, NCONF_load, NCONF_load_fp, NCONF_load_bio,
5685 NCONF_get_section, NCONF_get_string, NCONF_get_numbre
5687 NCONF_default, NCONF_WIN32
5689 NCONF_dump_fp, NCONF_dump_bio
5691 NCONF_default and NCONF_WIN32 are method (or "class") choosers,
5692 NCONF_new creates a new CONF object. This works in the same way
5693 as other interfaces in OpenSSL, like the BIO interface.
5694 NCONF_dump_* dump the internal storage of the configuration file,
5695 which is useful for debugging. All other functions take the same
5696 arguments as the old CONF_* functions wth the exception of the
5697 first that must be a `CONF *' instead of a `LHASH *'.
5699 To make it easer to use the new classes with the old CONF_* functions,
5700 the function CONF_set_default_method is provided.
5703 *) Add '-tls1' option to 'openssl ciphers', which was already
5704 mentioned in the documentation but had not been implemented.
5705 (This option is not yet really useful because even the additional
5706 experimental TLS 1.0 ciphers are currently treated as SSL 3.0 ciphers.)
5709 *) Initial DSO code added into libcrypto for letting OpenSSL (and
5710 OpenSSL-based applications) load shared libraries and bind to
5711 them in a portable way.
5712 [Geoff Thorpe, with contributions from Richard Levitte]
5714 Changes between 0.9.5 and 0.9.5a [1 Apr 2000]
5716 *) Make sure _lrotl and _lrotr are only used with MSVC.
5718 *) Use lock CRYPTO_LOCK_RAND correctly in ssleay_rand_status
5719 (the default implementation of RAND_status).
5721 *) Rename openssl x509 option '-crlext', which was added in 0.9.5,
5722 to '-clrext' (= clear extensions), as intended and documented.
5723 [Bodo Moeller; inconsistency pointed out by Michael Attili
5726 *) Fix for HMAC. It wasn't zeroing the rest of the block if the key length
5727 was larger than the MD block size.
5728 [Steve Henson, pointed out by Yost William <YostW@tce.com>]
5730 *) Modernise PKCS12_parse() so it uses STACK_OF(X509) for its ca argument
5731 fix a leak when the ca argument was passed as NULL. Stop X509_PUBKEY_set()
5732 using the passed key: if the passed key was a private key the result
5733 of X509_print(), for example, would be to print out all the private key
5737 *) des_quad_cksum() byte order bug fix.
5738 [Ulf Möller, using the problem description in krb4-0.9.7, where
5739 the solution is attributed to Derrick J Brashear <shadow@DEMENTIA.ORG>]
5741 *) Fix so V_ASN1_APP_CHOOSE works again: however its use is strongly
5743 [Steve Henson, pointed out by Brian Korver <briank@cs.stanford.edu>]
5745 *) For easily testing in shell scripts whether some command
5746 'openssl XXX' exists, the new pseudo-command 'openssl no-XXX'
5747 returns with exit code 0 iff no command of the given name is available.
5748 'no-XXX' is printed in this case, 'XXX' otherwise. In both cases,
5749 the output goes to stdout and nothing is printed to stderr.
5750 Additional arguments are always ignored.
5752 Since for each cipher there is a command of the same name,
5753 the 'no-cipher' compilation switches can be tested this way.
5755 ('openssl no-XXX' is not able to detect pseudo-commands such
5756 as 'quit', 'list-XXX-commands', or 'no-XXX' itself.)
5759 *) Update test suite so that 'make test' succeeds in 'no-rsa' configuration.
5762 *) For SSL_[CTX_]set_tmp_dh, don't create a DH key if SSL_OP_SINGLE_DH_USE
5763 is set; it will be thrown away anyway because each handshake creates
5765 ssl_cert_dup, which is used by SSL_new, now copies DH keys in addition
5766 to parameters -- in previous versions (since OpenSSL 0.9.3) the
5767 'default key' from SSL_CTX_set_tmp_dh would always be lost, meanining
5768 you effectivly got SSL_OP_SINGLE_DH_USE when using this macro.
5771 *) New s_client option -ign_eof: EOF at stdin is ignored, and
5772 'Q' and 'R' lose their special meanings (quit/renegotiate).
5773 This is part of what -quiet does; unlike -quiet, -ign_eof
5774 does not suppress any output.
5777 *) Add compatibility options to the purpose and trust code. The
5778 purpose X509_PURPOSE_ANY is "any purpose" which automatically
5779 accepts a certificate or CA, this was the previous behaviour,
5780 with all the associated security issues.
5782 X509_TRUST_COMPAT is the old trust behaviour: only and
5783 automatically trust self signed roots in certificate store. A
5784 new trust setting X509_TRUST_DEFAULT is used to specify that
5785 a purpose has no associated trust setting and it should instead
5786 use the value in the default purpose.
5789 *) Fix the PKCS#8 DSA private key code so it decodes keys again
5790 and fix a memory leak.
5793 *) In util/mkerr.pl (which implements 'make errors'), preserve
5794 reason strings from the previous version of the .c file, as
5795 the default to have only downcase letters (and digits) in
5796 automatically generated reasons codes is not always appropriate.
5799 *) In ERR_load_ERR_strings(), build an ERR_LIB_SYS error reason table
5800 using strerror. Previously, ERR_reason_error_string() returned
5801 library names as reason strings for SYSerr; but SYSerr is a special
5802 case where small numbers are errno values, not library numbers.
5805 *) Add '-dsaparam' option to 'openssl dhparam' application. This
5806 converts DSA parameters into DH parameters. (When creating parameters,
5807 DSA_generate_parameters is used.)
5810 *) Include 'length' (recommended exponent length) in C code generated
5811 by 'openssl dhparam -C'.
5814 *) The second argument to set_label in perlasm was already being used
5815 so couldn't be used as a "file scope" flag. Moved to third argument
5819 *) In PEM_ASN1_write_bio and some other functions, use RAND_pseudo_bytes
5820 instead of RAND_bytes for encryption IVs and salts.
5823 *) Include RAND_status() into RAND_METHOD instead of implementing
5824 it only for md_rand.c Otherwise replacing the PRNG by calling
5825 RAND_set_rand_method would be impossible.
5828 *) Don't let DSA_generate_key() enter an infinite loop if the random
5829 number generation fails.
5832 *) New 'rand' application for creating pseudo-random output.
5835 *) Added configuration support for Linux/IA64
5836 [Rolf Haberrecker <rolf@suse.de>]
5838 *) Assembler module support for Mingw32.
5841 *) Shared library support for HPUX (in shlib/).
5842 [Lutz Jaenicke <Lutz.Jaenicke@aet.TU-Cottbus.DE> and Anonymous]
5844 *) Shared library support for Solaris gcc.
5845 [Lutz Behnke <behnke@trustcenter.de>]
5847 Changes between 0.9.4 and 0.9.5 [28 Feb 2000]
5849 *) PKCS7_encrypt() was adding text MIME headers twice because they
5850 were added manually and by SMIME_crlf_copy().
5853 *) In bntest.c don't call BN_rand with zero bits argument.
5854 [Steve Henson, pointed out by Andrew W. Gray <agray@iconsinc.com>]
5856 *) BN_mul bugfix: In bn_mul_part_recursion() only the a>a[n] && b>b[n]
5857 case was implemented. This caused BN_div_recp() to fail occasionally.
5860 *) Add an optional second argument to the set_label() in the perl
5861 assembly language builder. If this argument exists and is set
5862 to 1 it signals that the assembler should use a symbol whose
5863 scope is the entire file, not just the current function. This
5864 is needed with MASM which uses the format label:: for this scope.
5865 [Steve Henson, pointed out by Peter Runestig <peter@runestig.com>]
5867 *) Change the ASN1 types so they are typedefs by default. Before
5868 almost all types were #define'd to ASN1_STRING which was causing
5869 STACK_OF() problems: you couldn't declare STACK_OF(ASN1_UTF8STRING)
5873 *) Change names of new functions to the new get1/get0 naming
5874 convention: After 'get1', the caller owns a reference count
5875 and has to call ..._free; 'get0' returns a pointer to some
5876 data structure without incrementing reference counters.
5877 (Some of the existing 'get' functions increment a reference
5878 counter, some don't.)
5879 Similarly, 'set1' and 'add1' functions increase reference
5880 counters or duplicate objects.
5883 *) Allow for the possibility of temp RSA key generation failure:
5884 the code used to assume it always worked and crashed on failure.
5887 *) Fix potential buffer overrun problem in BIO_printf().
5888 [Ulf Möller, using public domain code by Patrick Powell; problem
5889 pointed out by David Sacerdote <das33@cornell.edu>]
5891 *) Support EGD <http://www.lothar.com/tech/crypto/>. New functions
5892 RAND_egd() and RAND_status(). In the command line application,
5893 the EGD socket can be specified like a seed file using RANDFILE
5897 *) Allow the string CERTIFICATE to be tolerated in PKCS#7 structures.
5898 Some CAs (e.g. Verisign) distribute certificates in this form.
5901 *) Remove the SSL_ALLOW_ADH compile option and set the default cipher
5902 list to exclude them. This means that no special compilation option
5903 is needed to use anonymous DH: it just needs to be included in the
5907 *) Change the EVP_MD_CTX_type macro so its meaning consistent with
5908 EVP_MD_type. The old functionality is available in a new macro called
5909 EVP_MD_md(). Change code that uses it and update docs.
5912 *) ..._ctrl functions now have corresponding ..._callback_ctrl functions
5913 where the 'void *' argument is replaced by a function pointer argument.
5914 Previously 'void *' was abused to point to functions, which works on
5915 many platforms, but is not correct. As these functions are usually
5916 called by macros defined in OpenSSL header files, most source code
5917 should work without changes.
5920 *) <openssl/opensslconf.h> (which is created by Configure) now contains
5921 sections with information on -D... compiler switches used for
5922 compiling the library so that applications can see them. To enable
5923 one of these sections, a pre-processor symbol OPENSSL_..._DEFINES
5924 must be defined. E.g.,
5925 #define OPENSSL_ALGORITHM_DEFINES
5926 #include <openssl/opensslconf.h>
5927 defines all pertinent NO_<algo> symbols, such as NO_IDEA, NO_RSA, etc.
5928 [Richard Levitte, Ulf and Bodo Möller]
5930 *) Bugfix: Tolerate fragmentation and interleaving in the SSL 3/TLS
5934 *) Change the 'other' type in certificate aux info to a STACK_OF
5935 X509_ALGOR. Although not an AlgorithmIdentifier as such it has
5936 the required ASN1 format: arbitrary types determined by an OID.
5939 *) Add some PEM_write_X509_REQ_NEW() functions and a command line
5940 argument to 'req'. This is not because the function is newer or
5941 better than others it just uses the work 'NEW' in the certificate
5942 request header lines. Some software needs this.
5945 *) Reorganise password command line arguments: now passwords can be
5946 obtained from various sources. Delete the PEM_cb function and make
5947 it the default behaviour: i.e. if the callback is NULL and the
5948 usrdata argument is not NULL interpret it as a null terminated pass
5949 phrase. If usrdata and the callback are NULL then the pass phrase
5950 is prompted for as usual.
5953 *) Add support for the Compaq Atalla crypto accelerator. If it is installed,
5954 the support is automatically enabled. The resulting binaries will
5955 autodetect the card and use it if present.
5956 [Ben Laurie and Compaq Inc.]
5958 *) Work around for Netscape hang bug. This sends certificate request
5959 and server done in one record. Since this is perfectly legal in the
5960 SSL/TLS protocol it isn't a "bug" option and is on by default. See
5961 the bugs/SSLv3 entry for more info.
5964 *) HP-UX tune-up: new unified configs, HP C compiler bug workaround.
5967 *) Add -rand argument to smime and pkcs12 applications and read/write
5971 *) New 'passwd' tool for crypt(3) and apr1 password hashes.
5974 *) Add command line password options to the remaining applications.
5977 *) Bug fix for BN_div_recp() for numerators with an even number of
5981 *) More tests in bntest.c, and changed test_bn output.
5984 *) ./config recognizes MacOS X now.
5987 *) Bug fix for BN_div() when the first words of num and divsor are
5988 equal (it gave wrong results if (rem=(n1-q*d0)&BN_MASK2) < d0).
5991 *) Add support for various broken PKCS#8 formats, and command line
5992 options to produce them.
5995 *) New functions BN_CTX_start(), BN_CTX_get() and BT_CTX_end() to
5996 get temporary BIGNUMs from a BN_CTX.
5999 *) Correct return values in BN_mod_exp_mont() and BN_mod_exp2_mont()
6003 *) Change the SSLeay_add_all_*() functions to OpenSSL_add_all_*() and
6004 include a #define from the old name to the new. The original intent
6005 was that statically linked binaries could for example just call
6006 SSLeay_add_all_ciphers() to just add ciphers to the table and not
6007 link with digests. This never worked becayse SSLeay_add_all_digests()
6008 and SSLeay_add_all_ciphers() were in the same source file so calling
6009 one would link with the other. They are now in separate source files.
6012 *) Add a new -notext option to 'ca' and a -pubkey option to 'spkac'.
6015 *) Use a less unusual form of the Miller-Rabin primality test (it used
6016 a binary algorithm for exponentiation integrated into the Miller-Rabin
6017 loop, our standard modexp algorithms are faster).
6020 *) Support for the EBCDIC character set completed.
6021 [Martin Kraemer <Martin.Kraemer@Mch.SNI.De>]
6023 *) Source code cleanups: use const where appropriate, eliminate casts,
6024 use void * instead of char * in lhash.
6027 *) Bugfix: ssl3_send_server_key_exchange was not restartable
6028 (the state was not changed to SSL3_ST_SW_KEY_EXCH_B, and because of
6029 this the server could overwrite ephemeral keys that the client
6033 *) Turn DSA_is_prime into a macro that calls BN_is_prime,
6034 using 50 iterations of the Rabin-Miller test.
6036 DSA_generate_parameters now uses BN_is_prime_fasttest (with 50
6037 iterations of the Rabin-Miller test as required by the appendix
6038 to FIPS PUB 186[-1]) instead of DSA_is_prime.
6039 As BN_is_prime_fasttest includes trial division, DSA parameter
6040 generation becomes much faster.
6042 This implies a change for the callback functions in DSA_is_prime
6043 and DSA_generate_parameters: The callback function is called once
6044 for each positive witness in the Rabin-Miller test, not just
6045 occasionally in the inner loop; and the parameters to the
6046 callback function now provide an iteration count for the outer
6047 loop rather than for the current invocation of the inner loop.
6048 DSA_generate_parameters additionally can call the callback
6049 function with an 'iteration count' of -1, meaning that a
6050 candidate has passed the trial division test (when q is generated
6051 from an application-provided seed, trial division is skipped).
6054 *) New function BN_is_prime_fasttest that optionally does trial
6055 division before starting the Rabin-Miller test and has
6056 an additional BN_CTX * argument (whereas BN_is_prime always
6057 has to allocate at least one BN_CTX).
6058 'callback(1, -1, cb_arg)' is called when a number has passed the
6059 trial division stage.
6062 *) Fix for bug in CRL encoding. The validity dates weren't being handled
6066 *) New -pkcs12 option to CA.pl script to write out a PKCS#12 file.
6069 *) New function BN_pseudo_rand().
6072 *) Clean up BN_mod_mul_montgomery(): replace the broken (and unreadable)
6073 bignum version of BN_from_montgomery() with the working code from
6074 SSLeay 0.9.0 (the word based version is faster anyway), and clean up
6078 *) Avoid a race condition in s2_clnt.c (function get_server_hello) that
6079 made it impossible to use the same SSL_SESSION data structure in
6080 SSL2 clients in multiple threads.
6083 *) The return value of RAND_load_file() no longer counts bytes obtained
6084 by stat(). RAND_load_file(..., -1) is new and uses the complete file
6085 to seed the PRNG (previously an explicit byte count was required).
6086 [Ulf Möller, Bodo Möller]
6088 *) Clean up CRYPTO_EX_DATA functions, some of these didn't have prototypes
6089 used (char *) instead of (void *) and had casts all over the place.
6092 *) Make BN_generate_prime() return NULL on error if ret!=NULL.
6095 *) Retain source code compatibility for BN_prime_checks macro:
6096 BN_is_prime(..., BN_prime_checks, ...) now uses
6097 BN_prime_checks_for_size to determine the appropriate number of
6098 Rabin-Miller iterations.
6101 *) Diffie-Hellman uses "safe" primes: DH_check() return code renamed to
6102 DH_CHECK_P_NOT_SAFE_PRIME.
6103 (Check if this is true? OpenPGP calls them "strong".)
6106 *) Merge the functionality of "dh" and "gendh" programs into a new program
6107 "dhparam". The old programs are retained for now but will handle DH keys
6108 (instead of parameters) in future.
6111 *) Make the ciphers, s_server and s_client programs check the return values
6112 when a new cipher list is set.
6115 *) Enhance the SSL/TLS cipher mechanism to correctly handle the TLS 56bit
6116 ciphers. Before when the 56bit ciphers were enabled the sorting was
6119 The syntax for the cipher sorting has been extended to support sorting by
6120 cipher-strength (using the strength_bits hard coded in the tables).
6121 The new command is "@STRENGTH" (see also doc/apps/ciphers.pod).
6123 Fix a bug in the cipher-command parser: when supplying a cipher command
6124 string with an "undefined" symbol (neither command nor alphanumeric
6125 [A-Za-z0-9], ssl_set_cipher_list used to hang in an endless loop. Now
6126 an error is flagged.
6128 Due to the strength-sorting extension, the code of the
6129 ssl_create_cipher_list() function was completely rearranged. I hope that
6130 the readability was also increased :-)
6131 [Lutz Jaenicke <Lutz.Jaenicke@aet.TU-Cottbus.DE>]
6133 *) Minor change to 'x509' utility. The -CAcreateserial option now uses 1
6134 for the first serial number and places 2 in the serial number file. This
6135 avoids problems when the root CA is created with serial number zero and
6136 the first user certificate has the same issuer name and serial number
6140 *) Fixes to X509_ATTRIBUTE utilities, change the 'req' program so it uses
6141 the new code. Add documentation for this stuff.
6144 *) Changes to X509_ATTRIBUTE utilities. These have been renamed from
6145 X509_*() to X509at_*() on the grounds that they don't handle X509
6146 structures and behave in an analagous way to the X509v3 functions:
6147 they shouldn't be called directly but wrapper functions should be used
6150 So we also now have some wrapper functions that call the X509at functions
6151 when passed certificate requests. (TO DO: similar things can be done with
6152 PKCS#7 signed and unsigned attributes, PKCS#12 attributes and a few other
6153 things. Some of these need some d2i or i2d and print functionality
6154 because they handle more complex structures.)
6157 *) Add missing #ifndefs that caused missing symbols when building libssl
6158 as a shared library without RSA. Use #ifndef NO_SSL2 instead of
6159 NO_RSA in ssl/s2*.c.
6160 [Kris Kennaway <kris@hub.freebsd.org>, modified by Ulf Möller]
6162 *) Precautions against using the PRNG uninitialized: RAND_bytes() now
6163 has a return value which indicates the quality of the random data
6164 (1 = ok, 0 = not seeded). Also an error is recorded on the thread's
6165 error queue. New function RAND_pseudo_bytes() generates output that is
6166 guaranteed to be unique but not unpredictable. RAND_add is like
6167 RAND_seed, but takes an extra argument for an entropy estimate
6168 (RAND_seed always assumes full entropy).
6171 *) Do more iterations of Rabin-Miller probable prime test (specifically,
6172 3 for 1024-bit primes, 6 for 512-bit primes, 12 for 256-bit primes
6173 instead of only 2 for all lengths; see BN_prime_checks_for_size definition
6174 in crypto/bn/bn_prime.c for the complete table). This guarantees a
6175 false-positive rate of at most 2^-80 for random input.
6178 *) Rewrite ssl3_read_n (ssl/s3_pkt.c) avoiding a couple of bugs.
6181 *) New function X509_CTX_rget_chain() (renamed to X509_CTX_get1_chain
6182 in the 0.9.5 release), this returns the chain
6183 from an X509_CTX structure with a dup of the stack and all
6184 the X509 reference counts upped: so the stack will exist
6185 after X509_CTX_cleanup() has been called. Modify pkcs12.c
6188 Also make SSL_SESSION_print() print out the verify return
6192 *) Add manpage for the pkcs12 command. Also change the default
6193 behaviour so MAC iteration counts are used unless the new
6194 -nomaciter option is used. This improves file security and
6195 only older versions of MSIE (4.0 for example) need it.
6198 *) Honor the no-xxx Configure options when creating .DEF files.
6201 *) Add PKCS#10 attributes to field table: challengePassword,
6202 unstructuredName and unstructuredAddress. These are taken from
6203 draft PKCS#9 v2.0 but are compatible with v1.2 provided no
6204 international characters are used.
6206 More changes to X509_ATTRIBUTE code: allow the setting of types
6207 based on strings. Remove the 'loc' parameter when adding
6208 attributes because these will be a SET OF encoding which is sorted
6212 *) Initial changes to the 'req' utility to allow request generation
6213 automation. This will allow an application to just generate a template
6214 file containing all the field values and have req construct the
6217 Initial support for X509_ATTRIBUTE handling. Stacks of these are
6218 used all over the place including certificate requests and PKCS#7
6219 structures. They are currently handled manually where necessary with
6220 some primitive wrappers for PKCS#7. The new functions behave in a
6221 manner analogous to the X509 extension functions: they allow
6222 attributes to be looked up by NID and added.
6224 Later something similar to the X509V3 code would be desirable to
6225 automatically handle the encoding, decoding and printing of the
6226 more complex types. The string types like challengePassword can
6227 be handled by the string table functions.
6229 Also modified the multi byte string table handling. Now there is
6230 a 'global mask' which masks out certain types. The table itself
6231 can use the flag STABLE_NO_MASK to ignore the mask setting: this
6232 is useful when for example there is only one permissible type
6233 (as in countryName) and using the mask might result in no valid
6237 *) Clean up 'Finished' handling, and add functions SSL_get_finished and
6238 SSL_get_peer_finished to allow applications to obtain the latest
6239 Finished messages sent to the peer or expected from the peer,
6240 respectively. (SSL_get_peer_finished is usually the Finished message
6241 actually received from the peer, otherwise the protocol will be aborted.)
6243 As the Finished message are message digests of the complete handshake
6244 (with a total of 192 bits for TLS 1.0 and more for SSL 3.0), they can
6245 be used for external authentication procedures when the authentication
6246 provided by SSL/TLS is not desired or is not enough.
6249 *) Enhanced support for Alpha Linux is added. Now ./config checks if
6250 the host supports BWX extension and if Compaq C is present on the
6251 $PATH. Just exploiting of the BWX extension results in 20-30%
6252 performance kick for some algorithms, e.g. DES and RC4 to mention
6253 a couple. Compaq C in turn generates ~20% faster code for MD5 and
6257 *) Add support for MS "fast SGC". This is arguably a violation of the
6258 SSL3/TLS protocol. Netscape SGC does two handshakes: the first with
6259 weak crypto and after checking the certificate is SGC a second one
6260 with strong crypto. MS SGC stops the first handshake after receiving
6261 the server certificate message and sends a second client hello. Since
6262 a server will typically do all the time consuming operations before
6263 expecting any further messages from the client (server key exchange
6264 is the most expensive) there is little difference between the two.
6266 To get OpenSSL to support MS SGC we have to permit a second client
6267 hello message after we have sent server done. In addition we have to
6268 reset the MAC if we do get this second client hello.
6271 *) Add a function 'd2i_AutoPrivateKey()' this will automatically decide
6272 if a DER encoded private key is RSA or DSA traditional format. Changed
6273 d2i_PrivateKey_bio() to use it. This is only needed for the "traditional"
6274 format DER encoded private key. Newer code should use PKCS#8 format which
6275 has the key type encoded in the ASN1 structure. Added DER private key
6276 support to pkcs8 application.
6279 *) SSL 3/TLS 1 servers now don't request certificates when an anonymous
6280 ciphersuites has been selected (as required by the SSL 3/TLS 1
6281 specifications). Exception: When SSL_VERIFY_FAIL_IF_NO_PEER_CERT
6282 is set, we interpret this as a request to violate the specification
6283 (the worst that can happen is a handshake failure, and 'correct'
6284 behaviour would result in a handshake failure anyway).
6287 *) In SSL_CTX_add_session, take into account that there might be multiple
6288 SSL_SESSION structures with the same session ID (e.g. when two threads
6289 concurrently obtain them from an external cache).
6290 The internal cache can handle only one SSL_SESSION with a given ID,
6291 so if there's a conflict, we now throw out the old one to achieve
6295 *) Add OIDs for idea and blowfish in CBC mode. This will allow both
6296 to be used in PKCS#5 v2.0 and S/MIME. Also add checking to
6297 some routines that use cipher OIDs: some ciphers do not have OIDs
6298 defined and so they cannot be used for S/MIME and PKCS#5 v2.0 for
6302 *) Simplify the trust setting structure and code. Now we just have
6303 two sequences of OIDs for trusted and rejected settings. These will
6304 typically have values the same as the extended key usage extension
6305 and any application specific purposes.
6307 The trust checking code now has a default behaviour: it will just
6308 check for an object with the same NID as the passed id. Functions can
6309 be provided to override either the default behaviour or the behaviour
6310 for a given id. SSL client, server and email already have functions
6311 in place for compatibility: they check the NID and also return "trusted"
6312 if the certificate is self signed.
6315 *) Add d2i,i2d bio/fp functions for PrivateKey: these convert the
6316 traditional format into an EVP_PKEY structure.
6319 *) Add a password callback function PEM_cb() which either prompts for
6320 a password if usr_data is NULL or otherwise assumes it is a null
6321 terminated password. Allow passwords to be passed on command line
6322 environment or config files in a few more utilities.
6325 *) Add a bunch of DER and PEM functions to handle PKCS#8 format private
6326 keys. Add some short names for PKCS#8 PBE algorithms and allow them
6327 to be specified on the command line for the pkcs8 and pkcs12 utilities.
6328 Update documentation.
6331 *) Support for ASN1 "NULL" type. This could be handled before by using
6332 ASN1_TYPE but there wasn't any function that would try to read a NULL
6333 and produce an error if it couldn't. For compatibility we also have
6334 ASN1_NULL_new() and ASN1_NULL_free() functions but these are faked and
6335 don't allocate anything because they don't need to.
6338 *) Initial support for MacOS is now provided. Examine INSTALL.MacOS
6340 [Andy Polyakov, Roy Woods <roy@centicsystems.ca>]
6342 *) Rebuild of the memory allocation routines used by OpenSSL code and
6343 possibly others as well. The purpose is to make an interface that
6344 provide hooks so anyone can build a separate set of allocation and
6345 deallocation routines to be used by OpenSSL, for example memory
6346 pool implementations, or something else, which was previously hard
6347 since Malloc(), Realloc() and Free() were defined as macros having
6348 the values malloc, realloc and free, respectively (except for Win32
6349 compilations). The same is provided for memory debugging code.
6350 OpenSSL already comes with functionality to find memory leaks, but
6351 this gives people a chance to debug other memory problems.
6353 With these changes, a new set of functions and macros have appeared:
6355 CRYPTO_set_mem_debug_functions() [F]
6356 CRYPTO_get_mem_debug_functions() [F]
6357 CRYPTO_dbg_set_options() [F]
6358 CRYPTO_dbg_get_options() [F]
6359 CRYPTO_malloc_debug_init() [M]
6361 The memory debug functions are NULL by default, unless the library
6362 is compiled with CRYPTO_MDEBUG or friends is defined. If someone
6363 wants to debug memory anyway, CRYPTO_malloc_debug_init() (which
6364 gives the standard debugging functions that come with OpenSSL) or
6365 CRYPTO_set_mem_debug_functions() (tells OpenSSL to use functions
6366 provided by the library user) must be used. When the standard
6367 debugging functions are used, CRYPTO_dbg_set_options can be used to
6368 request additional information:
6369 CRYPTO_dbg_set_options(V_CYRPTO_MDEBUG_xxx) corresponds to setting
6370 the CRYPTO_MDEBUG_xxx macro when compiling the library.
6372 Also, things like CRYPTO_set_mem_functions will always give the
6373 expected result (the new set of functions is used for allocation
6374 and deallocation) at all times, regardless of platform and compiler
6377 To finish it up, some functions that were never use in any other
6378 way than through macros have a new API and new semantic:
6381 CRYPTO_dbg_realloc()
6384 All macros of value have retained their old syntax.
6385 [Richard Levitte and Bodo Moeller]
6387 *) Some S/MIME fixes. The OID for SMIMECapabilities was wrong, the
6388 ordering of SMIMECapabilities wasn't in "strength order" and there
6389 was a missing NULL in the AlgorithmIdentifier for the SHA1 signature
6393 *) Some ASN1 types with illegal zero length encoding (INTEGER,
6394 ENUMERATED and OBJECT IDENTIFIER) choked the ASN1 routines.
6395 [Frans Heymans <fheymans@isaserver.be>, modified by Steve Henson]
6397 *) Merge in my S/MIME library for OpenSSL. This provides a simple
6398 S/MIME API on top of the PKCS#7 code, a MIME parser (with enough
6399 functionality to handle multipart/signed properly) and a utility
6400 called 'smime' to call all this stuff. This is based on code I
6401 originally wrote for Celo who have kindly allowed it to be
6402 included in OpenSSL.
6405 *) Add variants des_set_key_checked and des_set_key_unchecked of
6406 des_set_key (aka des_key_sched). Global variable des_check_key
6407 decides which of these is called by des_set_key; this way
6408 des_check_key behaves as it always did, but applications and
6409 the library itself, which was buggy for des_check_key == 1,
6410 have a cleaner way to pick the version they need.
6413 *) New function PKCS12_newpass() which changes the password of a
6417 *) Modify X509_TRUST and X509_PURPOSE so it also uses a static and
6418 dynamic mix. In both cases the ids can be used as an index into the
6419 table. Also modified the X509_TRUST_add() and X509_PURPOSE_add()
6420 functions so they accept a list of the field values and the
6421 application doesn't need to directly manipulate the X509_TRUST
6425 *) Modify the ASN1_STRING_TABLE stuff so it also uses bsearch and doesn't
6429 *) Modify the way the V3 extension code looks up extensions. This now
6430 works in a similar way to the object code: we have some "standard"
6431 extensions in a static table which is searched with OBJ_bsearch()
6432 and the application can add dynamic ones if needed. The file
6433 crypto/x509v3/ext_dat.h now has the info: this file needs to be
6434 updated whenever a new extension is added to the core code and kept
6435 in ext_nid order. There is a simple program 'tabtest.c' which checks
6436 this. New extensions are not added too often so this file can readily
6437 be maintained manually.
6439 There are two big advantages in doing things this way. The extensions
6440 can be looked up immediately and no longer need to be "added" using
6441 X509V3_add_standard_extensions(): this function now does nothing.
6442 [Side note: I get *lots* of email saying the extension code doesn't
6443 work because people forget to call this function]
6444 Also no dynamic allocation is done unless new extensions are added:
6445 so if we don't add custom extensions there is no need to call
6446 X509V3_EXT_cleanup().
6449 *) Modify enc utility's salting as follows: make salting the default. Add a
6450 magic header, so unsalted files fail gracefully instead of just decrypting
6451 to garbage. This is because not salting is a big security hole, so people
6452 should be discouraged from doing it.
6455 *) Fixes and enhancements to the 'x509' utility. It allowed a message
6456 digest to be passed on the command line but it only used this
6457 parameter when signing a certificate. Modified so all relevant
6458 operations are affected by the digest parameter including the
6459 -fingerprint and -x509toreq options. Also -x509toreq choked if a
6460 DSA key was used because it didn't fix the digest.
6463 *) Initial certificate chain verify code. Currently tests the untrusted
6464 certificates for consistency with the verify purpose (which is set
6465 when the X509_STORE_CTX structure is set up) and checks the pathlength.
6467 There is a NO_CHAIN_VERIFY compilation option to keep the old behaviour:
6468 this is because it will reject chains with invalid extensions whereas
6469 every previous version of OpenSSL and SSLeay made no checks at all.
6471 Trust code: checks the root CA for the relevant trust settings. Trust
6472 settings have an initial value consistent with the verify purpose: e.g.
6473 if the verify purpose is for SSL client use it expects the CA to be
6474 trusted for SSL client use. However the default value can be changed to
6475 permit custom trust settings: one example of this would be to only trust
6476 certificates from a specific "secure" set of CAs.
6478 Also added X509_STORE_CTX_new() and X509_STORE_CTX_free() functions
6479 which should be used for version portability: especially since the
6480 verify structure is likely to change more often now.
6482 SSL integration. Add purpose and trust to SSL_CTX and SSL and functions
6483 to set them. If not set then assume SSL clients will verify SSL servers
6486 Two new options to the verify program: -untrusted allows a set of
6487 untrusted certificates to be passed in and -purpose which sets the
6488 intended purpose of the certificate. If a purpose is set then the
6489 new chain verify code is used to check extension consistency.
6492 *) Support for the authority information access extension.
6495 *) Modify RSA and DSA PEM read routines to transparently handle
6496 PKCS#8 format private keys. New *_PUBKEY_* functions that handle
6497 public keys in a format compatible with certificate
6498 SubjectPublicKeyInfo structures. Unfortunately there were already
6499 functions called *_PublicKey_* which used various odd formats so
6500 these are retained for compatibility: however the DSA variants were
6501 never in a public release so they have been deleted. Changed dsa/rsa
6502 utilities to handle the new format: note no releases ever handled public
6503 keys so we should be OK.
6505 The primary motivation for this change is to avoid the same fiasco
6506 that dogs private keys: there are several incompatible private key
6507 formats some of which are standard and some OpenSSL specific and
6508 require various evil hacks to allow partial transparent handling and
6509 even then it doesn't work with DER formats. Given the option anything
6510 other than PKCS#8 should be dumped: but the other formats have to
6511 stay in the name of compatibility.
6513 With public keys and the benefit of hindsight one standard format
6514 is used which works with EVP_PKEY, RSA or DSA structures: though
6515 it clearly returns an error if you try to read the wrong kind of key.
6517 Added a -pubkey option to the 'x509' utility to output the public key.
6518 Also rename the EVP_PKEY_get_*() to EVP_PKEY_rget_*()
6519 (renamed to EVP_PKEY_get1_*() in the OpenSSL 0.9.5 release) and add
6520 EVP_PKEY_rset_*() functions (renamed to EVP_PKEY_set1_*())
6521 that do the same as the EVP_PKEY_assign_*() except they up the
6522 reference count of the added key (they don't "swallow" the
6526 *) Fixes to crypto/x509/by_file.c the code to read in certificates and
6527 CRLs would fail if the file contained no certificates or no CRLs:
6528 added a new function to read in both types and return the number
6529 read: this means that if none are read it will be an error. The
6530 DER versions of the certificate and CRL reader would always fail
6531 because it isn't possible to mix certificates and CRLs in DER format
6532 without choking one or the other routine. Changed this to just read
6533 a certificate: this is the best we can do. Also modified the code
6534 in apps/verify.c to take notice of return codes: it was previously
6535 attempting to read in certificates from NULL pointers and ignoring
6536 any errors: this is one reason why the cert and CRL reader seemed
6537 to work. It doesn't check return codes from the default certificate
6538 routines: these may well fail if the certificates aren't installed.
6541 *) Code to support otherName option in GeneralName.
6544 *) First update to verify code. Change the verify utility
6545 so it warns if it is passed a self signed certificate:
6546 for consistency with the normal behaviour. X509_verify
6547 has been modified to it will now verify a self signed
6548 certificate if *exactly* the same certificate appears
6549 in the store: it was previously impossible to trust a
6550 single self signed certificate. This means that:
6551 openssl verify ss.pem
6552 now gives a warning about a self signed certificate but
6553 openssl verify -CAfile ss.pem ss.pem
6557 *) For servers, store verify_result in SSL_SESSION data structure
6558 (and add it to external session representation).
6559 This is needed when client certificate verifications fails,
6560 but an application-provided verification callback (set by
6561 SSL_CTX_set_cert_verify_callback) allows accepting the session
6562 anyway (i.e. leaves x509_store_ctx->error != X509_V_OK
6563 but returns 1): When the session is reused, we have to set
6564 ssl->verify_result to the appropriate error code to avoid
6566 [Bodo Moeller, problem pointed out by Lutz Jaenicke]
6568 *) Fix a bug in the new PKCS#7 code: it didn't consider the
6569 case in PKCS7_dataInit() where the signed PKCS7 structure
6570 didn't contain any existing data because it was being created.
6571 [Po-Cheng Chen <pocheng@nst.com.tw>, slightly modified by Steve Henson]
6573 *) Add a salt to the key derivation routines in enc.c. This
6574 forms the first 8 bytes of the encrypted file. Also add a
6575 -S option to allow a salt to be input on the command line.
6578 *) New function X509_cmp(). Oddly enough there wasn't a function
6579 to compare two certificates. We do this by working out the SHA1
6580 hash and comparing that. X509_cmp() will be needed by the trust
6584 *) SSL_get1_session() is like SSL_get_session(), but increments
6585 the reference count in the SSL_SESSION returned.
6586 [Geoff Thorpe <geoff@eu.c2.net>]
6588 *) Fix for 'req': it was adding a null to request attributes.
6589 Also change the X509_LOOKUP and X509_INFO code to handle
6590 certificate auxiliary information.
6593 *) Add support for 40 and 64 bit RC2 and RC4 algorithms: document
6597 *) Add the possibility to add extra information to the memory leak
6598 detecting output, to form tracebacks, showing from where each
6599 allocation was originated: CRYPTO_push_info("constant string") adds
6600 the string plus current file name and line number to a per-thread
6601 stack, CRYPTO_pop_info() does the obvious, CRYPTO_remove_all_info()
6602 is like calling CYRPTO_pop_info() until the stack is empty.
6603 Also updated memory leak detection code to be multi-thread-safe.
6606 *) Add options -text and -noout to pkcs7 utility and delete the
6607 encryption options which never did anything. Update docs.
6610 *) Add options to some of the utilities to allow the pass phrase
6611 to be included on either the command line (not recommended on
6612 OSes like Unix) or read from the environment. Update the
6613 manpages and fix a few bugs.
6616 *) Add a few manpages for some of the openssl commands.
6619 *) Fix the -revoke option in ca. It was freeing up memory twice,
6620 leaking and not finding already revoked certificates.
6623 *) Extensive changes to support certificate auxiliary information.
6624 This involves the use of X509_CERT_AUX structure and X509_AUX
6625 functions. An X509_AUX function such as PEM_read_X509_AUX()
6626 can still read in a certificate file in the usual way but it
6627 will also read in any additional "auxiliary information". By
6628 doing things this way a fair degree of compatibility can be
6629 retained: existing certificates can have this information added
6630 using the new 'x509' options.
6632 Current auxiliary information includes an "alias" and some trust
6633 settings. The trust settings will ultimately be used in enhanced
6634 certificate chain verification routines: currently a certificate
6635 can only be trusted if it is self signed and then it is trusted
6639 *) Fix assembler for Alpha (tested only on DEC OSF not Linux or *BSD).
6640 The problem was that one of the replacement routines had not been working
6641 since SSLeay releases. For now the offending routine has been replaced
6642 with non-optimised assembler. Even so, this now gives around 95%
6643 performance improvement for 1024 bit RSA signs.
6646 *) Hack to fix PKCS#7 decryption when used with some unorthodox RC2
6647 handling. Most clients have the effective key size in bits equal to
6648 the key length in bits: so a 40 bit RC2 key uses a 40 bit (5 byte) key.
6649 A few however don't do this and instead use the size of the decrypted key
6650 to determine the RC2 key length and the AlgorithmIdentifier to determine
6651 the effective key length. In this case the effective key length can still
6652 be 40 bits but the key length can be 168 bits for example. This is fixed
6653 by manually forcing an RC2 key into the EVP_PKEY structure because the
6654 EVP code can't currently handle unusual RC2 key sizes: it always assumes
6655 the key length and effective key length are equal.
6658 *) Add a bunch of functions that should simplify the creation of
6659 X509_NAME structures. Now you should be able to do:
6660 X509_NAME_add_entry_by_txt(nm, "CN", MBSTRING_ASC, "Steve", -1, -1, 0);
6661 and have it automatically work out the correct field type and fill in
6662 the structures. The more adventurous can try:
6663 X509_NAME_add_entry_by_txt(nm, field, MBSTRING_UTF8, str, -1, -1, 0);
6664 and it will (hopefully) work out the correct multibyte encoding.
6667 *) Change the 'req' utility to use the new field handling and multibyte
6668 copy routines. Before the DN field creation was handled in an ad hoc
6669 way in req, ca, and x509 which was rather broken and didn't support
6670 BMPStrings or UTF8Strings. Since some software doesn't implement
6671 BMPStrings or UTF8Strings yet, they can be enabled using the config file
6672 using the dirstring_type option. See the new comment in the default
6673 openssl.cnf for more info.
6676 *) Make crypto/rand/md_rand.c more robust:
6677 - Assure unique random numbers after fork().
6678 - Make sure that concurrent threads access the global counter and
6679 md serializably so that we never lose entropy in them
6680 or use exactly the same state in multiple threads.
6681 Access to the large state is not always serializable because
6682 the additional locking could be a performance killer, and
6683 md should be large enough anyway.
6686 *) New file apps/app_rand.c with commonly needed functionality
6687 for handling the random seed file.
6689 Use the random seed file in some applications that previously did not:
6691 dsaparam -genkey (which also ignored its '-rand' option),
6694 x509 (when signing).
6695 Except on systems with /dev/urandom, it is crucial to have a random
6696 seed file at least for key creation, DSA signing, and for DH exchanges;
6697 for RSA signatures we could do without one.
6699 gendh and gendsa (unlike genrsa) used to read only the first byte
6700 of each file listed in the '-rand' option. The function as previously
6701 found in genrsa is now in app_rand.c and is used by all programs
6702 that support '-rand'.
6705 *) In RAND_write_file, use mode 0600 for creating files;
6706 don't just chmod when it may be too late.
6709 *) Report an error from X509_STORE_load_locations
6710 when X509_LOOKUP_load_file or X509_LOOKUP_add_dir failed.
6713 *) New function ASN1_mbstring_copy() this copies a string in either
6714 ASCII, Unicode, Universal (4 bytes per character) or UTF8 format
6715 into an ASN1_STRING type. A mask of permissible types is passed
6716 and it chooses the "minimal" type to use or an error if not type
6720 *) Add function equivalents to the various macros in asn1.h. The old
6721 macros are retained with an M_ prefix. Code inside the library can
6722 use the M_ macros. External code (including the openssl utility)
6723 should *NOT* in order to be "shared library friendly".
6726 *) Add various functions that can check a certificate's extensions
6727 to see if it usable for various purposes such as SSL client,
6728 server or S/MIME and CAs of these types. This is currently
6729 VERY EXPERIMENTAL but will ultimately be used for certificate chain
6730 verification. Also added a -purpose flag to x509 utility to
6731 print out all the purposes.
6734 *) Add a CRYPTO_EX_DATA to X509 certificate structure and associated
6738 *) New X509V3_{X509,CRL,REVOKED}_get_d2i() functions. These will search
6739 for, obtain and decode and extension and obtain its critical flag.
6740 This allows all the necessary extension code to be handled in a
6741 single function call.
6744 *) RC4 tune-up featuring 30-40% performance improvement on most RISC
6745 platforms. See crypto/rc4/rc4_enc.c for further details.
6748 *) New -noout option to asn1parse. This causes no output to be produced
6749 its main use is when combined with -strparse and -out to extract data
6750 from a file (which may not be in ASN.1 format).
6753 *) Fix for pkcs12 program. It was hashing an invalid certificate pointer
6754 when producing the local key id.
6755 [Richard Levitte <levitte@stacken.kth.se>]
6757 *) New option -dhparam in s_server. This allows a DH parameter file to be
6758 stated explicitly. If it is not stated then it tries the first server
6759 certificate file. The previous behaviour hard coded the filename
6763 *) Add -pubin and -pubout options to the rsa and dsa commands. These allow
6764 a public key to be input or output. For example:
6765 openssl rsa -in key.pem -pubout -out pubkey.pem
6766 Also added necessary DSA public key functions to handle this.
6769 *) Fix so PKCS7_dataVerify() doesn't crash if no certificates are contained
6770 in the message. This was handled by allowing
6771 X509_find_by_issuer_and_serial() to tolerate a NULL passed to it.
6772 [Steve Henson, reported by Sampo Kellomaki <sampo@mail.neuronio.pt>]
6774 *) Fix for bug in d2i_ASN1_bytes(): other ASN1 functions add an extra null
6775 to the end of the strings whereas this didn't. This would cause problems
6776 if strings read with d2i_ASN1_bytes() were later modified.
6777 [Steve Henson, reported by Arne Ansper <arne@ats.cyber.ee>]
6779 *) Fix for base64 decode bug. When a base64 bio reads only one line of
6780 data and it contains EOF it will end up returning an error. This is
6781 caused by input 46 bytes long. The cause is due to the way base64
6782 BIOs find the start of base64 encoded data. They do this by trying a
6783 trial decode on each line until they find one that works. When they
6784 do a flag is set and it starts again knowing it can pass all the
6785 data directly through the decoder. Unfortunately it doesn't reset
6786 the context it uses. This means that if EOF is reached an attempt
6787 is made to pass two EOFs through the context and this causes the
6788 resulting error. This can also cause other problems as well. As is
6789 usual with these problems it takes *ages* to find and the fix is
6790 trivial: move one line.
6791 [Steve Henson, reported by ian@uns.ns.ac.yu (Ivan Nejgebauer) ]
6793 *) Ugly workaround to get s_client and s_server working under Windows. The
6794 old code wouldn't work because it needed to select() on sockets and the
6795 tty (for keypresses and to see if data could be written). Win32 only
6796 supports select() on sockets so we select() with a 1s timeout on the
6797 sockets and then see if any characters are waiting to be read, if none
6798 are present then we retry, we also assume we can always write data to
6799 the tty. This isn't nice because the code then blocks until we've
6800 received a complete line of data and it is effectively polling the
6801 keyboard at 1s intervals: however it's quite a bit better than not
6802 working at all :-) A dedicated Windows application might handle this
6803 with an event loop for example.
6806 *) Enhance RSA_METHOD structure. Now there are two extra methods, rsa_sign
6807 and rsa_verify. When the RSA_FLAGS_SIGN_VER option is set these functions
6808 will be called when RSA_sign() and RSA_verify() are used. This is useful
6809 if rsa_pub_dec() and rsa_priv_enc() equivalents are not available.
6810 For this to work properly RSA_public_decrypt() and RSA_private_encrypt()
6811 should *not* be used: RSA_sign() and RSA_verify() must be used instead.
6812 This necessitated the support of an extra signature type NID_md5_sha1
6813 for SSL signatures and modifications to the SSL library to use it instead
6814 of calling RSA_public_decrypt() and RSA_private_encrypt().
6817 *) Add new -verify -CAfile and -CApath options to the crl program, these
6818 will lookup a CRL issuers certificate and verify the signature in a
6819 similar way to the verify program. Tidy up the crl program so it
6820 no longer accesses structures directly. Make the ASN1 CRL parsing a bit
6821 less strict. It will now permit CRL extensions even if it is not
6822 a V2 CRL: this will allow it to tolerate some broken CRLs.
6825 *) Initialize all non-automatic variables each time one of the openssl
6826 sub-programs is started (this is necessary as they may be started
6827 multiple times from the "OpenSSL>" prompt).
6828 [Lennart Bang, Bodo Moeller]
6830 *) Preliminary compilation option RSA_NULL which disables RSA crypto without
6831 removing all other RSA functionality (this is what NO_RSA does). This
6832 is so (for example) those in the US can disable those operations covered
6833 by the RSA patent while allowing storage and parsing of RSA keys and RSA
6837 *) Non-copying interface to BIO pairs.
6838 (still largely untested)
6841 *) New function ANS1_tag2str() to convert an ASN1 tag to a descriptive
6842 ASCII string. This was handled independently in various places before.
6845 *) New functions UTF8_getc() and UTF8_putc() that parse and generate
6846 UTF8 strings a character at a time.
6849 *) Use client_version from client hello to select the protocol
6850 (s23_srvr.c) and for RSA client key exchange verification
6851 (s3_srvr.c), as required by the SSL 3.0/TLS 1.0 specifications.
6854 *) Add various utility functions to handle SPKACs, these were previously
6855 handled by poking round in the structure internals. Added new function
6856 NETSCAPE_SPKI_print() to print out SPKAC and a new utility 'spkac' to
6857 print, verify and generate SPKACs. Based on an original idea from
6858 Massimiliano Pala <madwolf@comune.modena.it> but extensively modified.
6861 *) RIPEMD160 is operational on all platforms and is back in 'make test'.
6864 *) Allow the config file extension section to be overwritten on the
6865 command line. Based on an original idea from Massimiliano Pala
6866 <madwolf@comune.modena.it>. The new option is called -extensions
6867 and can be applied to ca, req and x509. Also -reqexts to override
6868 the request extensions in req and -crlexts to override the crl extensions
6872 *) Add new feature to the SPKAC handling in ca. Now you can include
6873 the same field multiple times by preceding it by "XXXX." for example:
6876 this is the same syntax as used in the req config file.
6879 *) Allow certificate extensions to be added to certificate requests. These
6880 are specified in a 'req_extensions' option of the req section of the
6881 config file. They can be printed out with the -text option to req but
6882 are otherwise ignored at present.
6885 *) Fix a horrible bug in enc_read() in crypto/evp/bio_enc.c: if the first
6886 data read consists of only the final block it would not decrypted because
6887 EVP_CipherUpdate() would correctly report zero bytes had been decrypted.
6888 A misplaced 'break' also meant the decrypted final block might not be
6889 copied until the next read.
6892 *) Initial support for DH_METHOD. Again based on RSA_METHOD. Also added
6893 a few extra parameters to the DH structure: these will be useful if
6894 for example we want the value of 'q' or implement X9.42 DH.
6897 *) Initial support for DSA_METHOD. This is based on the RSA_METHOD and
6898 provides hooks that allow the default DSA functions or functions on a
6899 "per key" basis to be replaced. This allows hardware acceleration and
6900 hardware key storage to be handled without major modification to the
6901 library. Also added low level modexp hooks and CRYPTO_EX structure and
6902 associated functions.
6905 *) Add a new flag to memory BIOs, BIO_FLAG_MEM_RDONLY. This marks the BIO
6906 as "read only": it can't be written to and the buffer it points to will
6907 not be freed. Reading from a read only BIO is much more efficient than
6908 a normal memory BIO. This was added because there are several times when
6909 an area of memory needs to be read from a BIO. The previous method was
6910 to create a memory BIO and write the data to it, this results in two
6911 copies of the data and an O(n^2) reading algorithm. There is a new
6912 function BIO_new_mem_buf() which creates a read only memory BIO from
6913 an area of memory. Also modified the PKCS#7 routines to use read only
6917 *) Bugfix: ssl23_get_client_hello did not work properly when called in
6918 state SSL23_ST_SR_CLNT_HELLO_B, i.e. when the first 7 bytes of
6919 a SSLv2-compatible client hello for SSLv3 or TLSv1 could be read,
6920 but a retry condition occured while trying to read the rest.
6923 *) The PKCS7_ENC_CONTENT_new() function was setting the content type as
6924 NID_pkcs7_encrypted by default: this was wrong since this should almost
6925 always be NID_pkcs7_data. Also modified the PKCS7_set_type() to handle
6926 the encrypted data type: this is a more sensible place to put it and it
6927 allows the PKCS#12 code to be tidied up that duplicated this
6931 *) Changed obj_dat.pl script so it takes its input and output files on
6932 the command line. This should avoid shell escape redirection problems
6936 *) Initial support for certificate extension requests, these are included
6937 in things like Xenroll certificate requests. Included functions to allow
6938 extensions to be obtained and added.
6941 *) -crlf option to s_client and s_server for sending newlines as
6942 CRLF (as required by many protocols).
6945 Changes between 0.9.3a and 0.9.4 [09 Aug 1999]
6947 *) Install libRSAglue.a when OpenSSL is built with RSAref.
6948 [Ralf S. Engelschall]
6950 *) A few more ``#ifndef NO_FP_API / #endif'' pairs for consistency.
6951 [Andrija Antonijevic <TheAntony2@bigfoot.com>]
6953 *) Fix -startdate and -enddate (which was missing) arguments to 'ca'
6957 *) New function DSA_dup_DH, which duplicates DSA parameters/keys as
6958 DH parameters/keys (q is lost during that conversion, but the resulting
6959 DH parameters contain its length).
6961 For 1024-bit p, DSA_generate_parameters followed by DSA_dup_DH is
6962 much faster than DH_generate_parameters (which creates parameters
6963 where p = 2*q + 1), and also the smaller q makes DH computations
6964 much more efficient (160-bit exponentiation instead of 1024-bit
6965 exponentiation); so this provides a convenient way to support DHE
6966 ciphersuites in SSL/TLS servers (see ssl/ssltest.c). It is of
6967 utter importance to use
6968 SSL_CTX_set_options(s_ctx, SSL_OP_SINGLE_DH_USE);
6970 SSL_set_options(s_ctx, SSL_OP_SINGLE_DH_USE);
6971 when such DH parameters are used, because otherwise small subgroup
6972 attacks may become possible!
6975 *) Avoid memory leak in i2d_DHparams.
6978 *) Allow the -k option to be used more than once in the enc program:
6979 this allows the same encrypted message to be read by multiple recipients.
6982 *) New function OBJ_obj2txt(buf, buf_len, a, no_name), this converts
6983 an ASN1_OBJECT to a text string. If the "no_name" parameter is set then
6984 it will always use the numerical form of the OID, even if it has a short
6988 *) Added an extra RSA flag: RSA_FLAG_EXT_PKEY. Previously the rsa_mod_exp
6989 method only got called if p,q,dmp1,dmq1,iqmp components were present,
6990 otherwise bn_mod_exp was called. In the case of hardware keys for example
6991 no private key components need be present and it might store extra data
6992 in the RSA structure, which cannot be accessed from bn_mod_exp.
6993 By setting RSA_FLAG_EXT_PKEY rsa_mod_exp will always be called for
6994 private key operations.
6997 *) Added support for SPARC Linux.
7000 *) pem_password_cb function type incompatibly changed from
7001 typedef int pem_password_cb(char *buf, int size, int rwflag);
7003 ....(char *buf, int size, int rwflag, void *userdata);
7004 so that applications can pass data to their callbacks:
7005 The PEM[_ASN1]_{read,write}... functions and macros now take an
7006 additional void * argument, which is just handed through whenever
7007 the password callback is called.
7008 [Damien Miller <dmiller@ilogic.com.au>; tiny changes by Bodo Moeller]
7010 New function SSL_CTX_set_default_passwd_cb_userdata.
7012 Compatibility note: As many C implementations push function arguments
7013 onto the stack in reverse order, the new library version is likely to
7014 interoperate with programs that have been compiled with the old
7015 pem_password_cb definition (PEM_whatever takes some data that
7016 happens to be on the stack as its last argument, and the callback
7017 just ignores this garbage); but there is no guarantee whatsoever that
7020 *) The -DPLATFORM="\"$(PLATFORM)\"" definition and the similar -DCFLAGS=...
7021 (both in crypto/Makefile.ssl for use by crypto/cversion.c) caused
7022 problems not only on Windows, but also on some Unix platforms.
7023 To avoid problematic command lines, these definitions are now in an
7024 auto-generated file crypto/buildinf.h (created by crypto/Makefile.ssl
7025 for standard "make" builds, by util/mk1mf.pl for "mk1mf" builds).
7028 *) MIPS III/IV assembler module is reimplemented.
7031 *) More DES library cleanups: remove references to srand/rand and
7032 delete an unused file.
7035 *) Add support for the the free Netwide assembler (NASM) under Win32,
7036 since not many people have MASM (ml) and it can be hard to obtain.
7037 This is currently experimental but it seems to work OK and pass all
7038 the tests. Check out INSTALL.W32 for info.
7041 *) Fix memory leaks in s3_clnt.c: All non-anonymous SSL3/TLS1 connections
7042 without temporary keys kept an extra copy of the server key,
7043 and connections with temporary keys did not free everything in case
7047 *) New function RSA_check_key and new openssl rsa option -check
7048 for verifying the consistency of RSA keys.
7049 [Ulf Moeller, Bodo Moeller]
7051 *) Various changes to make Win32 compile work:
7052 1. Casts to avoid "loss of data" warnings in p5_crpt2.c
7053 2. Change unsigned int to int in b_dump.c to avoid "signed/unsigned
7054 comparison" warnings.
7055 3. Add sk_<TYPE>_sort to DEF file generator and do make update.
7058 *) Add a debugging option to PKCS#5 v2 key generation function: when
7059 you #define DEBUG_PKCS5V2 passwords, salts, iteration counts and
7060 derived keys are printed to stderr.
7063 *) Copy the flags in ASN1_STRING_dup().
7064 [Roman E. Pavlov <pre@mo.msk.ru>]
7066 *) The x509 application mishandled signing requests containing DSA
7067 keys when the signing key was also DSA and the parameters didn't match.
7069 It was supposed to omit the parameters when they matched the signing key:
7070 the verifying software was then supposed to automatically use the CA's
7071 parameters if they were absent from the end user certificate.
7073 Omitting parameters is no longer recommended. The test was also
7074 the wrong way round! This was probably due to unusual behaviour in
7075 EVP_cmp_parameters() which returns 1 if the parameters match.
7076 This meant that parameters were omitted when they *didn't* match and
7077 the certificate was useless. Certificates signed with 'ca' didn't have
7079 [Steve Henson, reported by Doug Erickson <Doug.Erickson@Part.NET>]
7081 *) Memory leak checking (-DCRYPTO_MDEBUG) had some problems.
7082 The interface is as follows:
7083 Applications can use
7084 CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_ON) aka MemCheck_start(),
7085 CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_OFF) aka MemCheck_stop();
7086 "off" is now the default.
7087 The library internally uses
7088 CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_DISABLE) aka MemCheck_off(),
7089 CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_ENABLE) aka MemCheck_on()
7090 to disable memory-checking temporarily.
7092 Some inconsistent states that previously were possible (and were
7093 even the default) are now avoided.
7095 -DCRYPTO_MDEBUG_TIME is new and additionally stores the current time
7096 with each memory chunk allocated; this is occasionally more helpful
7097 than just having a counter.
7099 -DCRYPTO_MDEBUG_THREAD is also new and adds the thread ID.
7101 -DCRYPTO_MDEBUG_ALL enables all of the above, plus any future
7105 *) Introduce "mode" for SSL structures (with defaults in SSL_CTX),
7106 which largely parallels "options", but is for changing API behaviour,
7107 whereas "options" are about protocol behaviour.
7108 Initial "mode" flags are:
7110 SSL_MODE_ENABLE_PARTIAL_WRITE Allow SSL_write to report success when
7111 a single record has been written.
7112 SSL_MODE_ACCEPT_MOVING_WRITE_BUFFER Don't insist that SSL_write
7113 retries use the same buffer location.
7114 (But all of the contents must be
7118 *) Bugfix: SSL_set_options ignored its parameter, only SSL_CTX_set_options
7121 *) Fix problems with no-hmac etc.
7122 [Ulf Möller, pointed out by Brian Wellington <bwelling@tislabs.com>]
7124 *) New functions RSA_get_default_method(), RSA_set_method() and
7125 RSA_get_method(). These allows replacement of RSA_METHODs without having
7126 to mess around with the internals of an RSA structure.
7129 *) Fix memory leaks in DSA_do_sign and DSA_is_prime.
7130 Also really enable memory leak checks in openssl.c and in some
7132 [Chad C. Mulligan, Bodo Moeller]
7134 *) Fix a bug in d2i_ASN1_INTEGER() and i2d_ASN1_INTEGER() which can mess
7135 up the length of negative integers. This has now been simplified to just
7136 store the length when it is first determined and use it later, rather
7137 than trying to keep track of where data is copied and updating it to
7139 [Steve Henson, reported by Brien Wheeler
7140 <bwheeler@authentica-security.com>]
7142 *) Add a new function PKCS7_signatureVerify. This allows the verification
7143 of a PKCS#7 signature but with the signing certificate passed to the
7144 function itself. This contrasts with PKCS7_dataVerify which assumes the
7145 certificate is present in the PKCS#7 structure. This isn't always the
7146 case: certificates can be omitted from a PKCS#7 structure and be
7147 distributed by "out of band" means (such as a certificate database).
7150 *) Complete the PEM_* macros with DECLARE_PEM versions to replace the
7151 function prototypes in pem.h, also change util/mkdef.pl to add the
7152 necessary function names.
7155 *) mk1mf.pl (used by Windows builds) did not properly read the
7156 options set by Configure in the top level Makefile, and Configure
7157 was not even able to write more than one option correctly.
7158 Fixed, now "no-idea no-rc5 -DCRYPTO_MDEBUG" etc. works as intended.
7161 *) New functions CONF_load_bio() and CONF_load_fp() to allow a config
7162 file to be loaded from a BIO or FILE pointer. The BIO version will
7163 for example allow memory BIOs to contain config info.
7166 *) New function "CRYPTO_num_locks" that returns CRYPTO_NUM_LOCKS.
7167 Whoever hopes to achieve shared-library compatibility across versions
7168 must use this, not the compile-time macro.
7169 (Exercise 0.9.4: Which is the minimum library version required by
7171 Note: All this applies only to multi-threaded programs, others don't
7175 *) Add missing case to s3_clnt.c state machine -- one of the new SSL tests
7176 through a BIO pair triggered the default case, i.e.
7177 SSLerr(...,SSL_R_UNKNOWN_STATE).
7180 *) New "BIO pair" concept (crypto/bio/bss_bio.c) so that applications
7181 can use the SSL library even if none of the specific BIOs is
7185 *) Fix a bug in i2d_DSAPublicKey() which meant it returned the wrong value
7186 for the encoded length.
7187 [Jeon KyoungHo <khjeon@sds.samsung.co.kr>]
7189 *) Add initial documentation of the X509V3 functions.
7192 *) Add a new pair of functions PEM_write_PKCS8PrivateKey() and
7193 PEM_write_bio_PKCS8PrivateKey() that are equivalent to
7194 PEM_write_PrivateKey() and PEM_write_bio_PrivateKey() but use the more
7195 secure PKCS#8 private key format with a high iteration count.
7198 *) Fix determination of Perl interpreter: A perl or perl5
7199 _directory_ in $PATH was also accepted as the interpreter.
7200 [Ralf S. Engelschall]
7202 *) Fix demos/sign/sign.c: well there wasn't anything strictly speaking
7203 wrong with it but it was very old and did things like calling
7204 PEM_ASN1_read() directly and used MD5 for the hash not to mention some
7208 *) Fix demos/selfsign.c: it used obsolete and deleted functions, changed
7209 to use the new extension code.
7212 *) Implement the PEM_read/PEM_write functions in crypto/pem/pem_all.c
7213 with macros. This should make it easier to change their form, add extra
7214 arguments etc. Fix a few PEM prototypes which didn't have cipher as a
7218 *) Add to configuration table a new entry that can specify an alternative
7219 name for unistd.h (for pre-POSIX systems); we need this for NeXTstep,
7220 according to Mark Crispin <MRC@Panda.COM>.
7224 *) DES CBC did not update the IV. Weird.
7227 des_cbc_encrypt does not update the IV, but des_ncbc_encrypt does.
7228 Changing the behaviour of the former might break existing programs --
7229 where IV updating is needed, des_ncbc_encrypt can be used.
7232 *) When bntest is run from "make test" it drives bc to check its
7233 calculations, as well as internally checking them. If an internal check
7234 fails, it needs to cause bc to give a non-zero result or make test carries
7235 on without noticing the failure. Fixed.
7238 *) DES library cleanups.
7241 *) Add support for PKCS#5 v2.0 PBE algorithms. This will permit PKCS#8 to be
7242 used with any cipher unlike PKCS#5 v1.5 which can at most handle 64 bit
7243 ciphers. NOTE: although the key derivation function has been verified
7244 against some published test vectors it has not been extensively tested
7245 yet. Added a -v2 "cipher" option to pkcs8 application to allow the use
7249 *) Instead of "mkdir -p", which is not fully portable, use new
7250 Perl script "util/mkdir-p.pl".
7253 *) Rewrite the way password based encryption (PBE) is handled. It used to
7254 assume that the ASN1 AlgorithmIdentifier parameter was a PBEParameter
7255 structure. This was true for the PKCS#5 v1.5 and PKCS#12 PBE algorithms
7256 but doesn't apply to PKCS#5 v2.0 where it can be something else. Now
7257 the 'parameter' field of the AlgorithmIdentifier is passed to the
7258 underlying key generation function so it must do its own ASN1 parsing.
7259 This has also changed the EVP_PBE_CipherInit() function which now has a
7260 'parameter' argument instead of literal salt and iteration count values
7261 and the function EVP_PBE_ALGOR_CipherInit() has been deleted.
7264 *) Support for PKCS#5 v1.5 compatible password based encryption algorithms
7265 and PKCS#8 functionality. New 'pkcs8' application linked to openssl.
7266 Needed to change the PEM_STRING_EVP_PKEY value which was just "PRIVATE
7267 KEY" because this clashed with PKCS#8 unencrypted string. Since this
7268 value was just used as a "magic string" and not used directly its
7269 value doesn't matter.
7272 *) Introduce some semblance of const correctness to BN. Shame C doesn't
7276 *) "linux-sparc64" configuration (ultrapenguin).
7277 [Ray Miller <ray.miller@oucs.ox.ac.uk>]
7278 "linux-sparc" configuration.
7279 [Christian Forster <fo@hawo.stw.uni-erlangen.de>]
7281 *) config now generates no-xxx options for missing ciphers.
7284 *) Support the EBCDIC character set (work in progress).
7285 File ebcdic.c not yet included because it has a different license.
7286 [Martin Kraemer <Martin.Kraemer@MchP.Siemens.De>]
7288 *) Support BS2000/OSD-POSIX.
7289 [Martin Kraemer <Martin.Kraemer@MchP.Siemens.De>]
7291 *) Make callbacks for key generation use void * instead of char *.
7294 *) Make S/MIME samples compile (not yet tested).
7297 *) Additional typesafe stacks.
7300 *) New configuration variants "bsdi-elf-gcc" (BSD/OS 4.x).
7304 Changes between 0.9.3 and 0.9.3a [29 May 1999]
7306 *) New configuration variant "sco5-gcc".
7308 *) Updated some demos.
7309 [Sean O Riordain, Wade Scholine]
7311 *) Add missing BIO_free at exit of pkcs12 application.
7314 *) Fix memory leak in conf.c.
7317 *) Updates for Win32 to assembler version of MD5.
7320 *) Set #! path to perl in apps/der_chop to where we found it
7321 instead of using a fixed path.
7324 *) SHA library changes for irix64-mips4-cc.
7327 *) Improvements for VMS support.
7331 Changes between 0.9.2b and 0.9.3 [24 May 1999]
7333 *) Bignum library bug fix. IRIX 6 passes "make test" now!
7334 This also avoids the problems with SC4.2 and unpatched SC5.
7335 [Andy Polyakov <appro@fy.chalmers.se>]
7337 *) New functions sk_num, sk_value and sk_set to replace the previous macros.
7338 These are required because of the typesafe stack would otherwise break
7339 existing code. If old code used a structure member which used to be STACK
7340 and is now STACK_OF (for example cert in a PKCS7_SIGNED structure) with
7341 sk_num or sk_value it would produce an error because the num, data members
7342 are not present in STACK_OF. Now it just produces a warning. sk_set
7343 replaces the old method of assigning a value to sk_value
7344 (e.g. sk_value(x, i) = y) which the library used in a few cases. Any code
7345 that does this will no longer work (and should use sk_set instead) but
7346 this could be regarded as a "questionable" behaviour anyway.
7349 *) Fix most of the other PKCS#7 bugs. The "experimental" code can now
7350 correctly handle encrypted S/MIME data.
7353 *) Change type of various DES function arguments from des_cblock
7354 (which means, in function argument declarations, pointer to char)
7355 to des_cblock * (meaning pointer to array with 8 char elements),
7356 which allows the compiler to do more typechecking; it was like
7357 that back in SSLeay, but with lots of ugly casts.
7359 Introduce new type const_des_cblock.
7362 *) Reorganise the PKCS#7 library and get rid of some of the more obvious
7363 problems: find RecipientInfo structure that matches recipient certificate
7364 and initialise the ASN1 structures properly based on passed cipher.
7367 *) Belatedly make the BN tests actually check the results.
7370 *) Fix the encoding and decoding of negative ASN1 INTEGERS and conversion
7371 to and from BNs: it was completely broken. New compilation option
7372 NEG_PUBKEY_BUG to allow for some broken certificates that encode public
7373 key elements as negative integers.
7376 *) Reorganize and speed up MD5.
7377 [Andy Polyakov <appro@fy.chalmers.se>]
7380 [Richard Levitte <richard@levitte.org>]
7382 *) New option -out to asn1parse to allow the parsed structure to be
7383 output to a file. This is most useful when combined with the -strparse
7384 option to examine the output of things like OCTET STRINGS.
7387 *) Make SSL library a little more fool-proof by not requiring any longer
7388 that SSL_set_{accept,connect}_state be called before
7389 SSL_{accept,connect} may be used (SSL_set_..._state is omitted
7390 in many applications because usually everything *appeared* to work as
7391 intended anyway -- now it really works as intended).
7394 *) Move openssl.cnf out of lib/.
7397 *) Fix various things to let OpenSSL even pass ``egcc -pipe -O2 -Wall
7398 -Wshadow -Wpointer-arith -Wcast-align -Wmissing-prototypes
7399 -Wmissing-declarations -Wnested-externs -Winline'' with EGCS 1.1.2+
7400 [Ralf S. Engelschall]
7402 *) Various fixes to the EVP and PKCS#7 code. It may now be able to
7403 handle PKCS#7 enveloped data properly.
7404 [Sebastian Akerman <sak@parallelconsulting.com>, modified by Steve]
7406 *) Create a duplicate of the SSL_CTX's CERT in SSL_new instead of
7407 copying pointers. The cert_st handling is changed by this in
7408 various ways (and thus what used to be known as ctx->default_cert
7409 is now called ctx->cert, since we don't resort to s->ctx->[default_]cert
7410 any longer when s->cert does not give us what we need).
7411 ssl_cert_instantiate becomes obsolete by this change.
7412 As soon as we've got the new code right (possibly it already is?),
7413 we have solved a couple of bugs of the earlier code where s->cert
7414 was used as if it could not have been shared with other SSL structures.
7416 Note that using the SSL API in certain dirty ways now will result
7417 in different behaviour than observed with earlier library versions:
7418 Changing settings for an SSL_CTX *ctx after having done s = SSL_new(ctx)
7419 does not influence s as it used to.
7421 In order to clean up things more thoroughly, inside SSL_SESSION
7422 we don't use CERT any longer, but a new structure SESS_CERT
7423 that holds per-session data (if available); currently, this is
7424 the peer's certificate chain and, for clients, the server's certificate
7425 and temporary key. CERT holds only those values that can have
7426 meaningful defaults in an SSL_CTX.
7429 *) New function X509V3_EXT_i2d() to create an X509_EXTENSION structure
7430 from the internal representation. Various PKCS#7 fixes: remove some
7431 evil casts and set the enc_dig_alg field properly based on the signing
7435 *) Allow PKCS#12 password to be set from the command line or the
7436 environment. Let 'ca' get its config file name from the environment
7437 variables "OPENSSL_CONF" or "SSLEAY_CONF" (for consistency with 'req'
7441 *) Allow certificate policies extension to use an IA5STRING for the
7442 organization field. This is contrary to the PKIX definition but
7443 VeriSign uses it and IE5 only recognises this form. Document 'x509'
7447 *) Add PEDANTIC compiler flag to allow compilation with gcc -pedantic,
7448 without disallowing inline assembler and the like for non-pedantic builds.
7451 *) Support Borland C++ builder.
7452 [Janez Jere <jj@void.si>, modified by Ulf Möller]
7457 *) SHA-1 cleanups and performance enhancements.
7458 [Andy Polyakov <appro@fy.chalmers.se>]
7460 *) Sparc v8plus assembler for the bignum library.
7461 [Andy Polyakov <appro@fy.chalmers.se>]
7463 *) Accept any -xxx and +xxx compiler options in Configure.
7466 *) Update HPUX configuration.
7469 *) Add missing sk_<type>_unshift() function to safestack.h
7470 [Ralf S. Engelschall]
7472 *) New function SSL_CTX_use_certificate_chain_file that sets the
7473 "extra_cert"s in addition to the certificate. (This makes sense
7474 only for "PEM" format files, as chains as a whole are not
7478 *) Support verify_depth from the SSL API.
7479 x509_vfy.c had what can be considered an off-by-one-error:
7480 Its depth (which was not part of the external interface)
7481 was actually counting the number of certificates in a chain;
7482 now it really counts the depth.
7485 *) Bugfix in crypto/x509/x509_cmp.c: The SSLerr macro was used
7486 instead of X509err, which often resulted in confusing error
7487 messages since the error codes are not globally unique
7488 (e.g. an alleged error in ssl3_accept when a certificate
7489 didn't match the private key).
7491 *) New function SSL_CTX_set_session_id_context that allows to set a default
7492 value (so that you don't need SSL_set_session_id_context for each
7493 connection using the SSL_CTX).
7496 *) OAEP decoding bug fix.
7499 *) Support INSTALL_PREFIX for package builders, as proposed by
7503 *) New Configure options "threads" and "no-threads". For systems
7504 where the proper compiler options are known (currently Solaris
7505 and Linux), "threads" is the default.
7508 *) New script util/mklink.pl as a faster substitute for util/mklink.sh.
7511 *) Install various scripts to $(OPENSSLDIR)/misc, not to
7512 $(INSTALLTOP)/bin -- they shouldn't clutter directories
7513 such as /usr/local/bin.
7516 *) "make linux-shared" to build shared libraries.
7517 [Niels Poppe <niels@netbox.org>]
7519 *) New Configure option no-<cipher> (rsa, idea, rc5, ...).
7522 *) Add the PKCS#12 API documentation to openssl.txt. Preliminary support for
7523 extension adding in x509 utility.
7526 *) Remove NOPROTO sections and error code comments.
7529 *) Partial rewrite of the DEF file generator to now parse the ANSI
7533 *) New Configure options --prefix=DIR and --openssldir=DIR.
7536 *) Complete rewrite of the error code script(s). It is all now handled
7537 by one script at the top level which handles error code gathering,
7538 header rewriting and C source file generation. It should be much better
7539 than the old method: it now uses a modified version of Ulf's parser to
7540 read the ANSI prototypes in all header files (thus the old K&R definitions
7541 aren't needed for error creation any more) and do a better job of
7542 translating function codes into names. The old 'ASN1 error code imbedded
7543 in a comment' is no longer necessary and it doesn't use .err files which
7544 have now been deleted. Also the error code call doesn't have to appear all
7545 on one line (which resulted in some large lines...).
7548 *) Change #include filenames from <foo.h> to <openssl/foo.h>.
7551 *) Change behaviour of ssl2_read when facing length-0 packets: Don't return
7552 0 (which usually indicates a closed connection), but continue reading.
7555 *) Fix some race conditions.
7558 *) Add support for CRL distribution points extension. Add Certificate
7559 Policies and CRL distribution points documentation.
7562 *) Move the autogenerated header file parts to crypto/opensslconf.h.
7565 *) Fix new 56-bit DES export ciphersuites: they were using 7 bytes instead of
7566 8 of keying material. Merlin has also confirmed interop with this fix
7567 between OpenSSL and Baltimore C/SSL 2.0 and J/SSL 2.0.
7568 [Merlin Hughes <merlin@baltimore.ie>]
7570 *) Fix lots of warnings.
7571 [Richard Levitte <levitte@stacken.kth.se>]
7573 *) In add_cert_dir() in crypto/x509/by_dir.c, break out of the loop if
7574 the directory spec didn't end with a LIST_SEPARATOR_CHAR.
7575 [Richard Levitte <levitte@stacken.kth.se>]
7577 *) Fix problems with sizeof(long) == 8.
7578 [Andy Polyakov <appro@fy.chalmers.se>]
7580 *) Change functions to ANSI C.
7583 *) Fix typos in error codes.
7584 [Martin Kraemer <Martin.Kraemer@MchP.Siemens.De>, Ulf Möller]
7586 *) Remove defunct assembler files from Configure.
7589 *) SPARC v8 assembler BIGNUM implementation.
7590 [Andy Polyakov <appro@fy.chalmers.se>]
7592 *) Support for Certificate Policies extension: both print and set.
7593 Various additions to support the r2i method this uses.
7596 *) A lot of constification, and fix a bug in X509_NAME_oneline() that could
7597 return a const string when you are expecting an allocated buffer.
7600 *) Add support for ASN1 types UTF8String and VISIBLESTRING, also the CHOICE
7601 types DirectoryString and DisplayText.
7604 *) Add code to allow r2i extensions to access the configuration database,
7605 add an LHASH database driver and add several ctx helper functions.
7608 *) Fix an evil bug in bn_expand2() which caused various BN functions to
7609 fail when they extended the size of a BIGNUM.
7612 *) Various utility functions to handle SXNet extension. Modify mkdef.pl to
7613 support typesafe stack.
7616 *) Fix typo in SSL_[gs]et_options().
7617 [Nils Frostberg <nils@medcom.se>]
7619 *) Delete various functions and files that belonged to the (now obsolete)
7620 old X509V3 handling code.
7623 *) New Configure option "rsaref".
7626 *) Don't auto-generate pem.h.
7629 *) Introduce type-safe ASN.1 SETs.
7632 *) Convert various additional casted stacks to type-safe STACK_OF() variants.
7633 [Ben Laurie, Ralf S. Engelschall, Steve Henson]
7635 *) Introduce type-safe STACKs. This will almost certainly break lots of code
7636 that links with OpenSSL (well at least cause lots of warnings), but fear
7637 not: the conversion is trivial, and it eliminates loads of evil casts. A
7638 few STACKed things have been converted already. Feel free to convert more.
7639 In the fullness of time, I'll do away with the STACK type altogether.
7642 *) Add `openssl ca -revoke <certfile>' facility which revokes a certificate
7643 specified in <certfile> by updating the entry in the index.txt file.
7644 This way one no longer has to edit the index.txt file manually for
7645 revoking a certificate. The -revoke option does the gory details now.
7646 [Massimiliano Pala <madwolf@openca.org>, Ralf S. Engelschall]
7648 *) Fix `openssl crl -noout -text' combination where `-noout' killed the
7649 `-text' option at all and this way the `-noout -text' combination was
7650 inconsistent in `openssl crl' with the friends in `openssl x509|rsa|dsa'.
7651 [Ralf S. Engelschall]
7653 *) Make sure a corresponding plain text error message exists for the
7654 X509_V_ERR_CERT_REVOKED/23 error number which can occur when a
7655 verify callback function determined that a certificate was revoked.
7656 [Ralf S. Engelschall]
7658 *) Bugfix: In test/testenc, don't test "openssl <cipher>" for
7659 ciphers that were excluded, e.g. by -DNO_IDEA. Also, test
7660 all available cipers including rc5, which was forgotten until now.
7661 In order to let the testing shell script know which algorithms
7662 are available, a new (up to now undocumented) command
7663 "openssl list-cipher-commands" is used.
7666 *) Bugfix: s_client occasionally would sleep in select() when
7667 it should have checked SSL_pending() first.
7670 *) New functions DSA_do_sign and DSA_do_verify to provide access to
7671 the raw DSA values prior to ASN.1 encoding.
7674 *) Tweaks to Configure
7675 [Niels Poppe <niels@netbox.org>]
7677 *) Add support for PKCS#5 v2.0 ASN1 PBES2 structures. No other support,
7681 *) New variables $(RANLIB) and $(PERL) in the Makefiles.
7684 *) New config option to avoid instructions that are illegal on the 80386.
7685 The default code is faster, but requires at least a 486.
7688 *) Got rid of old SSL2_CLIENT_VERSION (inconsistently used) and
7689 SSL2_SERVER_VERSION (not used at all) macros, which are now the
7690 same as SSL2_VERSION anyway.
7693 *) New "-showcerts" option for s_client.
7696 *) Still more PKCS#12 integration. Add pkcs12 application to openssl
7697 application. Various cleanups and fixes.
7700 *) More PKCS#12 integration. Add new pkcs12 directory with Makefile.ssl and
7701 modify error routines to work internally. Add error codes and PBE init
7702 to library startup routines.
7705 *) Further PKCS#12 integration. Added password based encryption, PKCS#8 and
7706 packing functions to asn1 and evp. Changed function names and error
7707 codes along the way.
7710 *) PKCS12 integration: and so it begins... First of several patches to
7711 slowly integrate PKCS#12 functionality into OpenSSL. Add PKCS#12
7712 objects to objects.h
7715 *) Add a new 'indent' option to some X509V3 extension code. Initial ASN1
7716 and display support for Thawte strong extranet extension.
7719 *) Add LinuxPPC support.
7720 [Jeff Dubrule <igor@pobox.org>]
7722 *) Get rid of redundant BN file bn_mulw.c, and rename bn_div64 to
7723 bn_div_words in alpha.s.
7724 [Hannes Reinecke <H.Reinecke@hw.ac.uk> and Ben Laurie]
7726 *) Make sure the RSA OAEP test is skipped under -DRSAref because
7727 OAEP isn't supported when OpenSSL is built with RSAref.
7728 [Ulf Moeller <ulf@fitug.de>]
7730 *) Move definitions of IS_SET/IS_SEQUENCE inside crypto/asn1/asn1.h
7731 so they no longer are missing under -DNOPROTO.
7732 [Soren S. Jorvang <soren@t.dk>]
7735 Changes between 0.9.1c and 0.9.2b [22 Mar 1999]
7737 *) Make SSL_get_peer_cert_chain() work in servers. Unfortunately, it still
7738 doesn't work when the session is reused. Coming soon!
7741 *) Fix a security hole, that allows sessions to be reused in the wrong
7742 context thus bypassing client cert protection! All software that uses
7743 client certs and session caches in multiple contexts NEEDS PATCHING to
7744 allow session reuse! A fuller solution is in the works.
7745 [Ben Laurie, problem pointed out by Holger Reif, Bodo Moeller (and ???)]
7747 *) Some more source tree cleanups (removed obsolete files
7748 crypto/bf/asm/bf586.pl, test/test.txt and crypto/sha/asm/f.s; changed
7749 permission on "config" script to be executable) and a fix for the INSTALL
7751 [Ulf Moeller <ulf@fitug.de>]
7753 *) Remove some legacy and erroneous uses of malloc, free instead of
7755 [Lennart Bang <lob@netstream.se>, with minor changes by Steve]
7757 *) Make rsa_oaep_test return non-zero on error.
7758 [Ulf Moeller <ulf@fitug.de>]
7760 *) Add support for native Solaris shared libraries. Configure
7761 solaris-sparc-sc4-pic, make, then run shlib/solaris-sc4.sh. It'd be nice
7762 if someone would make that last step automatic.
7763 [Matthias Loepfe <Matthias.Loepfe@AdNovum.CH>]
7765 *) ctx_size was not built with the right compiler during "make links". Fixed.
7768 *) Change the meaning of 'ALL' in the cipher list. It now means "everything
7769 except NULL ciphers". This means the default cipher list will no longer
7770 enable NULL ciphers. They need to be specifically enabled e.g. with
7771 the string "DEFAULT:eNULL".
7774 *) Fix to RSA private encryption routines: if p < q then it would
7775 occasionally produce an invalid result. This will only happen with
7776 externally generated keys because OpenSSL (and SSLeay) ensure p > q.
7779 *) Be less restrictive and allow also `perl util/perlpath.pl
7780 /path/to/bin/perl' in addition to `perl util/perlpath.pl /path/to/bin',
7781 because this way one can also use an interpreter named `perl5' (which is
7782 usually the name of Perl 5.xxx on platforms where an Perl 4.x is still
7783 installed as `perl').
7784 [Matthias Loepfe <Matthias.Loepfe@adnovum.ch>]
7786 *) Let util/clean-depend.pl work also with older Perl 5.00x versions.
7787 [Matthias Loepfe <Matthias.Loepfe@adnovum.ch>]
7789 *) Fix Makefile.org so CC,CFLAG etc are passed to 'make links' add
7790 advapi32.lib to Win32 build and change the pem test comparision
7791 to fc.exe (thanks to Ulrich Kroener <kroneru@yahoo.com> for the
7792 suggestion). Fix misplaced ASNI prototypes and declarations in evp.h
7793 and crypto/des/ede_cbcm_enc.c.
7796 *) DES quad checksum was broken on big-endian architectures. Fixed.
7799 *) Comment out two functions in bio.h that aren't implemented. Fix up the
7800 Win32 test batch file so it (might) work again. The Win32 test batch file
7801 is horrible: I feel ill....
7804 *) Move various #ifdefs around so NO_SYSLOG, NO_DIRENT etc are now selected
7805 in e_os.h. Audit of header files to check ANSI and non ANSI
7806 sections: 10 functions were absent from non ANSI section and not exported
7807 from Windows DLLs. Fixed up libeay.num for new functions.
7810 *) Make `openssl version' output lines consistent.
7811 [Ralf S. Engelschall]
7813 *) Fix Win32 symbol export lists for BIO functions: Added
7814 BIO_get_ex_new_index, BIO_get_ex_num, BIO_get_ex_data and BIO_set_ex_data
7815 to ms/libeay{16,32}.def.
7816 [Ralf S. Engelschall]
7818 *) Second round of fixing the OpenSSL perl/ stuff. It now at least compiled
7819 fine under Unix and passes some trivial tests I've now added. But the
7820 whole stuff is horribly incomplete, so a README.1ST with a disclaimer was
7821 added to make sure no one expects that this stuff really works in the
7822 OpenSSL 0.9.2 release. Additionally I've started to clean the XS sources
7823 up and fixed a few little bugs and inconsistencies in OpenSSL.{pm,xs} and
7825 [Ralf S. Engelschall]
7827 *) Fix the generation of two part addresses in perl.
7828 [Kenji Miyake <kenji@miyake.org>, integrated by Ben Laurie]
7830 *) Add config entry for Linux on MIPS.
7831 [John Tobey <jtobey@channel1.com>]
7833 *) Make links whenever Configure is run, unless we are on Windoze.
7836 *) Permit extensions to be added to CRLs using crl_section in openssl.cnf.
7837 Currently only issuerAltName and AuthorityKeyIdentifier make any sense
7841 *) Add a useful kludge to allow package maintainers to specify compiler and
7842 other platforms details on the command line without having to patch the
7843 Configure script everytime: One now can use ``perl Configure
7844 <id>:<details>'', i.e. platform ids are allowed to have details appended
7845 to them (seperated by colons). This is treated as there would be a static
7846 pre-configured entry in Configure's %table under key <id> with value
7847 <details> and ``perl Configure <id>'' is called. So, when you want to
7848 perform a quick test-compile under FreeBSD 3.1 with pgcc and without
7849 assembler stuff you can use ``perl Configure "FreeBSD-elf:pgcc:-O6:::"''
7850 now, which overrides the FreeBSD-elf entry on-the-fly.
7851 [Ralf S. Engelschall]
7853 *) Disable new TLS1 ciphersuites by default: they aren't official yet.
7856 *) Allow DSO flags like -fpic, -fPIC, -KPIC etc. to be specified
7857 on the `perl Configure ...' command line. This way one can compile
7858 OpenSSL libraries with Position Independent Code (PIC) which is needed
7859 for linking it into DSOs.
7860 [Ralf S. Engelschall]
7862 *) Remarkably, export ciphers were totally broken and no-one had noticed!
7866 *) Cleaned up the LICENSE document: The official contact for any license
7867 questions now is the OpenSSL core team under openssl-core@openssl.org.
7868 And add a paragraph about the dual-license situation to make sure people
7869 recognize that _BOTH_ the OpenSSL license _AND_ the SSLeay license apply
7870 to the OpenSSL toolkit.
7871 [Ralf S. Engelschall]
7873 *) General source tree makefile cleanups: Made `making xxx in yyy...'
7874 display consistent in the source tree and replaced `/bin/rm' by `rm'.
7875 Additonally cleaned up the `make links' target: Remove unnecessary
7876 semicolons, subsequent redundant removes, inline point.sh into mklink.sh
7877 to speed processing and no longer clutter the display with confusing
7878 stuff. Instead only the actually done links are displayed.
7879 [Ralf S. Engelschall]
7881 *) Permit null encryption ciphersuites, used for authentication only. It used
7882 to be necessary to set the preprocessor define SSL_ALLOW_ENULL to do this.
7883 It is now necessary to set SSL_FORBID_ENULL to prevent the use of null
7887 *) Add a bunch of fixes to the PKCS#7 stuff. It used to sometimes reorder
7888 signed attributes when verifying signatures (this would break them),
7889 the detached data encoding was wrong and public keys obtained using
7890 X509_get_pubkey() weren't freed.
7893 *) Add text documentation for the BUFFER functions. Also added a work around
7894 to a Win95 console bug. This was triggered by the password read stuff: the
7895 last character typed gets carried over to the next fread(). If you were
7896 generating a new cert request using 'req' for example then the last
7897 character of the passphrase would be CR which would then enter the first
7901 *) Added the new `Includes OpenSSL Cryptography Software' button as
7902 doc/openssl_button.{gif,html} which is similar in style to the old SSLeay
7903 button and can be used by applications based on OpenSSL to show the
7904 relationship to the OpenSSL project.
7905 [Ralf S. Engelschall]
7907 *) Remove confusing variables in function signatures in files
7908 ssl/ssl_lib.c and ssl/ssl.h.
7909 [Lennart Bong <lob@kulthea.stacken.kth.se>]
7911 *) Don't install bss_file.c under PREFIX/include/
7912 [Lennart Bong <lob@kulthea.stacken.kth.se>]
7914 *) Get the Win32 compile working again. Modify mkdef.pl so it can handle
7915 functions that return function pointers and has support for NT specific
7916 stuff. Fix mk1mf.pl and VC-32.pl to support NT differences also. Various
7917 #ifdef WIN32 and WINNTs sprinkled about the place and some changes from
7918 unsigned to signed types: this was killing the Win32 compile.
7921 *) Add new certificate file to stack functions,
7922 SSL_add_dir_cert_subjects_to_stack() and
7923 SSL_add_file_cert_subjects_to_stack(). These largely supplant
7924 SSL_load_client_CA_file(), and can be used to add multiple certs easily
7925 to a stack (usually this is then handed to SSL_CTX_set_client_CA_list()).
7926 This means that Apache-SSL and similar packages don't have to mess around
7927 to add as many CAs as they want to the preferred list.
7930 *) Experiment with doxygen documentation. Currently only partially applied to
7932 See http://www.stack.nl/~dimitri/doxygen/index.html, and run doxygen with
7933 openssl.doxy as the configuration file.
7936 *) Get rid of remaining C++-style comments which strict C compilers hate.
7937 [Ralf S. Engelschall, pointed out by Carlos Amengual]
7939 *) Changed BN_RECURSION in bn_mont.c to BN_RECURSION_MONT so it is not
7940 compiled in by default: it has problems with large keys.
7943 *) Add a bunch of SSL_xxx() functions for configuring the temporary RSA and
7944 DH private keys and/or callback functions which directly correspond to
7945 their SSL_CTX_xxx() counterparts but work on a per-connection basis. This
7946 is needed for applications which have to configure certificates on a
7947 per-connection basis (e.g. Apache+mod_ssl) instead of a per-context basis
7949 For the RSA certificate situation is makes no difference, but
7950 for the DSA certificate situation this fixes the "no shared cipher"
7951 problem where the OpenSSL cipher selection procedure failed because the
7952 temporary keys were not overtaken from the context and the API provided
7953 no way to reconfigure them.
7954 The new functions now let applications reconfigure the stuff and they
7955 are in detail: SSL_need_tmp_RSA, SSL_set_tmp_rsa, SSL_set_tmp_dh,
7956 SSL_set_tmp_rsa_callback and SSL_set_tmp_dh_callback. Additionally a new
7957 non-public-API function ssl_cert_instantiate() is used as a helper
7958 function and also to reduce code redundancy inside ssl_rsa.c.
7959 [Ralf S. Engelschall]
7961 *) Move s_server -dcert and -dkey options out of the undocumented feature
7962 area because they are useful for the DSA situation and should be
7963 recognized by the users.
7964 [Ralf S. Engelschall]
7966 *) Fix the cipher decision scheme for export ciphers: the export bits are
7967 *not* within SSL_MKEY_MASK or SSL_AUTH_MASK, they are within
7968 SSL_EXP_MASK. So, the original variable has to be used instead of the
7969 already masked variable.
7970 [Richard Levitte <levitte@stacken.kth.se>]
7972 *) Fix 'port' variable from `int' to `unsigned int' in crypto/bio/b_sock.c
7973 [Richard Levitte <levitte@stacken.kth.se>]
7975 *) Change type of another md_len variable in pk7_doit.c:PKCS7_dataFinal()
7976 from `int' to `unsigned int' because it's a length and initialized by
7977 EVP_DigestFinal() which expects an `unsigned int *'.
7978 [Richard Levitte <levitte@stacken.kth.se>]
7980 *) Don't hard-code path to Perl interpreter on shebang line of Configure
7981 script. Instead use the usual Shell->Perl transition trick.
7982 [Ralf S. Engelschall]
7984 *) Make `openssl x509 -noout -modulus' functional also for DSA certificates
7985 (in addition to RSA certificates) to match the behaviour of `openssl dsa
7986 -noout -modulus' as it's already the case for `openssl rsa -noout
7987 -modulus'. For RSA the -modulus is the real "modulus" while for DSA
7988 currently the public key is printed (a decision which was already done by
7989 `openssl dsa -modulus' in the past) which serves a similar purpose.
7990 Additionally the NO_RSA no longer completely removes the whole -modulus
7991 option; it now only avoids using the RSA stuff. Same applies to NO_DSA
7993 [Ralf S. Engelschall]
7995 *) Add Arne Ansper's reliable BIO - this is an encrypted, block-digested
7996 BIO. See the source (crypto/evp/bio_ok.c) for more info.
7997 [Arne Ansper <arne@ats.cyber.ee>]
7999 *) Dump the old yucky req code that tried (and failed) to allow raw OIDs
8000 to be added. Now both 'req' and 'ca' can use new objects defined in the
8004 *) Add cool BIO that does syslog (or event log on NT).
8005 [Arne Ansper <arne@ats.cyber.ee>, integrated by Ben Laurie]
8007 *) Add support for new TLS ciphersuites, TLS_RSA_EXPORT56_WITH_RC4_56_MD5,
8008 TLS_RSA_EXPORT56_WITH_RC2_CBC_56_MD5 and
8009 TLS_RSA_EXPORT56_WITH_DES_CBC_SHA, as specified in "56-bit Export Cipher
8010 Suites For TLS", draft-ietf-tls-56-bit-ciphersuites-00.txt.
8013 *) Add preliminary config info for new extension code.
8016 *) Make RSA_NO_PADDING really use no padding.
8017 [Ulf Moeller <ulf@fitug.de>]
8019 *) Generate errors when private/public key check is done.
8022 *) Overhaul for 'crl' utility. New function X509_CRL_print. Partial support
8023 for some CRL extensions and new objects added.
8026 *) Really fix the ASN1 IMPLICIT bug this time... Partial support for private
8027 key usage extension and fuller support for authority key id.
8030 *) Add OAEP encryption for the OpenSSL crypto library. OAEP is the improved
8031 padding method for RSA, which is recommended for new applications in PKCS
8032 #1 v2.0 (RFC 2437, October 1998).
8033 OAEP (Optimal Asymmetric Encryption Padding) has better theoretical
8034 foundations than the ad-hoc padding used in PKCS #1 v1.5. It is secure
8035 against Bleichbacher's attack on RSA.
8036 [Ulf Moeller <ulf@fitug.de>, reformatted, corrected and integrated by
8039 *) Updates to the new SSL compression code
8040 [Eric A. Young, (from changes to C2Net SSLeay, integrated by Mark Cox)]
8042 *) Fix so that the version number in the master secret, when passed
8043 via RSA, checks that if TLS was proposed, but we roll back to SSLv3
8044 (because the server will not accept higher), that the version number
8045 is 0x03,0x01, not 0x03,0x00
8046 [Eric A. Young, (from changes to C2Net SSLeay, integrated by Mark Cox)]
8048 *) Run extensive memory leak checks on SSL apps. Fixed *lots* of memory
8049 leaks in ssl/ relating to new X509_get_pubkey() behaviour. Also fixes
8050 in apps/ and an unrelated leak in crypto/dsa/dsa_vrf.c
8053 *) Support for RAW extensions where an arbitrary extension can be
8054 created by including its DER encoding. See apps/openssl.cnf for
8058 *) Make sure latest Perl versions don't interpret some generated C array
8059 code as Perl array code in the crypto/err/err_genc.pl script.
8060 [Lars Weber <3weber@informatik.uni-hamburg.de>]
8062 *) Modify ms/do_ms.bat to not generate assembly language makefiles since
8063 not many people have the assembler. Various Win32 compilation fixes and
8064 update to the INSTALL.W32 file with (hopefully) more accurate Win32
8068 *) Modify configure script 'Configure' to automatically create crypto/date.h
8069 file under Win32 and also build pem.h from pem.org. New script
8070 util/mkfiles.pl to create the MINFO file on environments that can't do a
8071 'make files': perl util/mkfiles.pl >MINFO should work.
8074 *) Major rework of DES function declarations, in the pursuit of correctness
8075 and purity. As a result, many evil casts evaporated, and some weirdness,
8076 too. You may find this causes warnings in your code. Zapping your evil
8077 casts will probably fix them. Mostly.
8080 *) Fix for a typo in asn1.h. Bug fix to object creation script
8081 obj_dat.pl. It considered a zero in an object definition to mean
8082 "end of object": none of the objects in objects.h have any zeros
8083 so it wasn't spotted.
8084 [Steve Henson, reported by Erwann ABALEA <eabalea@certplus.com>]
8086 *) Add support for Triple DES Cipher Block Chaining with Output Feedback
8087 Masking (CBCM). In the absence of test vectors, the best I have been able
8088 to do is check that the decrypt undoes the encrypt, so far. Send me test
8089 vectors if you have them.
8092 *) Correct calculation of key length for export ciphers (too much space was
8093 allocated for null ciphers). This has not been tested!
8096 *) Modifications to the mkdef.pl for Win32 DEF file creation. The usage
8097 message is now correct (it understands "crypto" and "ssl" on its
8098 command line). There is also now an "update" option. This will update
8099 the util/ssleay.num and util/libeay.num files with any new functions.
8101 perl util/mkdef.pl crypto ssl update
8102 it will update them.
8105 *) Overhauled the Perl interface (perl/*):
8106 - ported BN stuff to OpenSSL's different BN library
8107 - made the perl/ source tree CVS-aware
8108 - renamed the package from SSLeay to OpenSSL (the files still contain
8109 their history because I've copied them in the repository)
8110 - removed obsolete files (the test scripts will be replaced
8111 by better Test::Harness variants in the future)
8112 [Ralf S. Engelschall]
8114 *) First cut for a very conservative source tree cleanup:
8115 1. merge various obsolete readme texts into doc/ssleay.txt
8116 where we collect the old documents and readme texts.
8117 2. remove the first part of files where I'm already sure that we no
8118 longer need them because of three reasons: either they are just temporary
8119 files which were left by Eric or they are preserved original files where
8120 I've verified that the diff is also available in the CVS via "cvs diff
8121 -rSSLeay_0_8_1b" or they were renamed (as it was definitely the case for
8122 the crypto/md/ stuff).
8123 [Ralf S. Engelschall]
8125 *) More extension code. Incomplete support for subject and issuer alt
8126 name, issuer and authority key id. Change the i2v function parameters
8127 and add an extra 'crl' parameter in the X509V3_CTX structure: guess
8128 what that's for :-) Fix to ASN1 macro which messed up
8129 IMPLICIT tag and add f_enum.c which adds a2i, i2a for ENUMERATED.
8132 *) Preliminary support for ENUMERATED type. This is largely copied from the
8136 *) Add new function, EVP_MD_CTX_copy() to replace frequent use of memcpy.
8137 [Eric A. Young, (from changes to C2Net SSLeay, integrated by Mark Cox)]
8139 *) Make sure `make rehash' target really finds the `openssl' program.
8140 [Ralf S. Engelschall, Matthias Loepfe <Matthias.Loepfe@adnovum.ch>]
8142 *) Squeeze another 7% of speed out of MD5 assembler, at least on a P2. I'd
8143 like to hear about it if this slows down other processors.
8146 *) Add CygWin32 platform information to Configure script.
8147 [Alan Batie <batie@aahz.jf.intel.com>]
8149 *) Fixed ms/32all.bat script: `no_asm' -> `no-asm'
8150 [Rainer W. Gerling <gerling@mpg-gv.mpg.de>]
8152 *) New program nseq to manipulate netscape certificate sequences
8155 *) Modify crl2pkcs7 so it supports multiple -certfile arguments. Fix a
8159 *) Fixes to BN code. Previously the default was to define BN_RECURSION
8160 but the BN code had some problems that would cause failures when
8161 doing certificate verification and some other functions.
8162 [Eric A. Young, (from changes to C2Net SSLeay, integrated by Mark Cox)]
8164 *) Add ASN1 and PEM code to support netscape certificate sequences.
8167 *) Add ASN1 and PEM code to support netscape certificate sequences.
8170 *) Add several PKIX and private extended key usage OIDs.
8173 *) Modify the 'ca' program to handle the new extension code. Modify
8174 openssl.cnf for new extension format, add comments.
8177 *) More X509 V3 changes. Fix typo in v3_bitstr.c. Add support to 'req'
8178 and add a sample to openssl.cnf so req -x509 now adds appropriate
8182 *) Continued X509 V3 changes. Add to other makefiles, integrate with the
8183 error code, add initial support to X509_print() and x509 application.
8186 *) Takes a deep breath and start addding X509 V3 extension support code. Add
8187 files in crypto/x509v3. Move original stuff to crypto/x509v3/old. All this
8188 stuff is currently isolated and isn't even compiled yet.
8191 *) Continuing patches for GeneralizedTime. Fix up certificate and CRL
8192 ASN1 to use ASN1_TIME and modify print routines to use ASN1_TIME_print.
8193 Removed the versions check from X509 routines when loading extensions:
8194 this allows certain broken certificates that don't set the version
8195 properly to be processed.
8198 *) Deal with irritating shit to do with dependencies, in YAAHW (Yet Another
8199 Ad Hoc Way) - Makefile.ssls now all contain local dependencies, which
8200 can still be regenerated with "make depend".
8203 *) Spelling mistake in C version of CAST-128.
8204 [Ben Laurie, reported by Jeremy Hylton <jeremy@cnri.reston.va.us>]
8206 *) Changes to the error generation code. The perl script err-code.pl
8207 now reads in the old error codes and retains the old numbers, only
8208 adding new ones if necessary. It also only changes the .err files if new
8209 codes are added. The makefiles have been modified to only insert errors
8210 when needed (to avoid needlessly modifying header files). This is done
8211 by only inserting errors if the .err file is newer than the auto generated
8212 C file. To rebuild all the error codes from scratch (the old behaviour)
8213 either modify crypto/Makefile.ssl to pass the -regen flag to err_code.pl
8214 or delete all the .err files.
8217 *) CAST-128 was incorrectly implemented for short keys. The C version has
8218 been fixed, but is untested. The assembler versions are also fixed, but
8219 new assembler HAS NOT BEEN GENERATED FOR WIN32 - the Makefile needs fixing
8220 to regenerate it if needed.
8221 [Ben Laurie, reported (with fix for C version) by Jun-ichiro itojun
8222 Hagino <itojun@kame.net>]
8224 *) File was opened incorrectly in randfile.c.
8225 [Ulf Möller <ulf@fitug.de>]
8227 *) Beginning of support for GeneralizedTime. d2i, i2d, check and print
8228 functions. Also ASN1_TIME suite which is a CHOICE of UTCTime or
8229 GeneralizedTime. ASN1_TIME is the proper type used in certificates et
8230 al: it's just almost always a UTCTime. Note this patch adds new error
8231 codes so do a "make errors" if there are problems.
8234 *) Correct Linux 1 recognition in config.
8235 [Ulf Möller <ulf@fitug.de>]
8237 *) Remove pointless MD5 hash when using DSA keys in ca.
8238 [Anonymous <nobody@replay.com>]
8240 *) Generate an error if given an empty string as a cert directory. Also
8241 generate an error if handed NULL (previously returned 0 to indicate an
8242 error, but didn't set one).
8243 [Ben Laurie, reported by Anonymous <nobody@replay.com>]
8245 *) Add prototypes to SSL methods. Make SSL_write's buffer const, at last.
8248 *) Fix the dummy function BN_ref_mod_exp() in rsaref.c to have the correct
8249 parameters. This was causing a warning which killed off the Win32 compile.
8252 *) Remove C++ style comments from crypto/bn/bn_local.h.
8253 [Neil Costigan <neil.costigan@celocom.com>]
8255 *) The function OBJ_txt2nid was broken. It was supposed to return a nid
8256 based on a text string, looking up short and long names and finally
8257 "dot" format. The "dot" format stuff didn't work. Added new function
8258 OBJ_txt2obj to do the same but return an ASN1_OBJECT and rewrote
8259 OBJ_txt2nid to use it. OBJ_txt2obj can also return objects even if the
8260 OID is not part of the table.
8263 *) Add prototypes to X509 lookup/verify methods, fixing a bug in
8264 X509_LOOKUP_by_alias().
8267 *) Sort openssl functions by name.
8270 *) Get the gendsa program working (hopefully) and add it to app list. Remove
8271 encryption from sample DSA keys (in case anyone is interested the password
8275 *) Make _all_ *_free functions accept a NULL pointer.
8276 [Frans Heymans <fheymans@isaserver.be>]
8278 *) If a DH key is generated in s3_srvr.c, don't blow it by trying to use
8280 [Anonymous <nobody@replay.com>]
8282 *) s_server should send the CAfile as acceptable CAs, not its own cert.
8283 [Bodo Moeller <3moeller@informatik.uni-hamburg.de>]
8285 *) Don't blow it for numeric -newkey arguments to apps/req.
8286 [Bodo Moeller <3moeller@informatik.uni-hamburg.de>]
8288 *) Temp key "for export" tests were wrong in s3_srvr.c.
8289 [Anonymous <nobody@replay.com>]
8291 *) Add prototype for temp key callback functions
8292 SSL_CTX_set_tmp_{rsa,dh}_callback().
8295 *) Make DH_free() tolerate being passed a NULL pointer (like RSA_free() and
8296 DSA_free()). Make X509_PUBKEY_set() check for errors in d2i_PublicKey().
8299 *) X509_name_add_entry() freed the wrong thing after an error.
8300 [Arne Ansper <arne@ats.cyber.ee>]
8302 *) rsa_eay.c would attempt to free a NULL context.
8303 [Arne Ansper <arne@ats.cyber.ee>]
8305 *) BIO_s_socket() had a broken should_retry() on Windoze.
8306 [Arne Ansper <arne@ats.cyber.ee>]
8308 *) BIO_f_buffer() didn't pass on BIO_CTRL_FLUSH.
8309 [Arne Ansper <arne@ats.cyber.ee>]
8311 *) Make sure the already existing X509_STORE->depth variable is initialized
8312 in X509_STORE_new(), but document the fact that this variable is still
8313 unused in the certificate verification process.
8314 [Ralf S. Engelschall]
8316 *) Fix the various library and apps files to free up pkeys obtained from
8317 X509_PUBKEY_get() et al. Also allow x509.c to handle netscape extensions.
8320 *) Fix reference counting in X509_PUBKEY_get(). This makes
8321 demos/maurice/example2.c work, amongst others, probably.
8322 [Steve Henson and Ben Laurie]
8324 *) First cut of a cleanup for apps/. First the `ssleay' program is now named
8325 `openssl' and second, the shortcut symlinks for the `openssl <command>'
8326 are no longer created. This way we have a single and consistent command
8327 line interface `openssl <command>', similar to `cvs <command>'.
8328 [Ralf S. Engelschall, Paul Sutton and Ben Laurie]
8330 *) ca.c: move test for DSA keys inside #ifndef NO_DSA. Make pubkey
8331 BIT STRING wrapper always have zero unused bits.
8334 *) Add CA.pl, perl version of CA.sh, add extended key usage OID.
8337 *) Make the top-level INSTALL documentation easier to understand.
8340 *) Makefiles updated to exit if an error occurs in a sub-directory
8341 make (including if user presses ^C) [Paul Sutton]
8343 *) Make Montgomery context stuff explicit in RSA data structure.
8346 *) Fix build order of pem and err to allow for generated pem.h.
8349 *) Fix renumbering bug in X509_NAME_delete_entry().
8352 *) Enhanced the err-ins.pl script so it makes the error library number
8353 global and can add a library name. This is needed for external ASN1 and
8354 other error libraries.
8357 *) Fixed sk_insert which never worked properly.
8360 *) Fix ASN1 macros so they can handle indefinite length construted
8361 EXPLICIT tags. Some non standard certificates use these: they can now
8365 *) Merged the various old/obsolete SSLeay documentation files (doc/xxx.doc)
8366 into a single doc/ssleay.txt bundle. This way the information is still
8367 preserved but no longer messes up this directory. Now it's new room for
8368 the new set of documenation files.
8369 [Ralf S. Engelschall]
8371 *) SETs were incorrectly DER encoded. This was a major pain, because they
8372 shared code with SEQUENCEs, which aren't coded the same. This means that
8373 almost everything to do with SETs or SEQUENCEs has either changed name or
8374 number of arguments.
8375 [Ben Laurie, based on a partial fix by GP Jayan <gp@nsj.co.jp>]
8377 *) Fix test data to work with the above.
8380 *) Fix the RSA header declarations that hid a bug I fixed in 0.9.0b but
8381 was already fixed by Eric for 0.9.1 it seems.
8382 [Ben Laurie - pointed out by Ulf Möller <ulf@fitug.de>]
8384 *) Autodetect FreeBSD3.
8387 *) Fix various bugs in Configure. This affects the following platforms:
8391 unixware-2.0-pentium
8395 *) Eliminate generated files from CVS. Reorder tests to regenerate files
8396 before they are needed.
8399 *) Generate Makefile.ssl from Makefile.org (to keep CVS happy).
8403 Changes between 0.9.1b and 0.9.1c [23-Dec-1998]
8405 *) Added OPENSSL_VERSION_NUMBER to crypto/crypto.h and
8406 changed SSLeay to OpenSSL in version strings.
8407 [Ralf S. Engelschall]
8409 *) Some fixups to the top-level documents.
8412 *) Fixed the nasty bug where rsaref.h was not found under compile-time
8413 because the symlink to include/ was missing.
8414 [Ralf S. Engelschall]
8416 *) Incorporated the popular no-RSA/DSA-only patches
8417 which allow to compile a RSA-free SSLeay.
8418 [Andrew Cooke / Interrader Ldt., Ralf S. Engelschall]
8420 *) Fixed nasty rehash problem under `make -f Makefile.ssl links'
8421 when "ssleay" is still not found.
8422 [Ralf S. Engelschall]
8424 *) Added more platforms to Configure: Cray T3E, HPUX 11,
8425 [Ralf S. Engelschall, Beckmann <beckman@acl.lanl.gov>]
8427 *) Updated the README file.
8428 [Ralf S. Engelschall]
8430 *) Added various .cvsignore files in the CVS repository subdirs
8431 to make a "cvs update" really silent.
8432 [Ralf S. Engelschall]
8434 *) Recompiled the error-definition header files and added
8435 missing symbols to the Win32 linker tables.
8436 [Ralf S. Engelschall]
8438 *) Cleaned up the top-level documents;
8439 o new files: CHANGES and LICENSE
8440 o merged VERSION, HISTORY* and README* files a CHANGES.SSLeay
8441 o merged COPYRIGHT into LICENSE
8442 o removed obsolete TODO file
8443 o renamed MICROSOFT to INSTALL.W32
8444 [Ralf S. Engelschall]
8446 *) Removed dummy files from the 0.9.1b source tree:
8447 crypto/asn1/x crypto/bio/cd crypto/bio/fg crypto/bio/grep crypto/bio/vi
8448 crypto/bn/asm/......add.c crypto/bn/asm/a.out crypto/dsa/f crypto/md5/f
8449 crypto/pem/gmon.out crypto/perlasm/f crypto/pkcs7/build crypto/rsa/f
8450 crypto/sha/asm/f crypto/threads/f ms/zzz ssl/f ssl/f.mak test/f
8451 util/f.mak util/pl/f util/pl/f.mak crypto/bf/bf_locl.old apps/f
8452 [Ralf S. Engelschall]
8454 *) Added various platform portability fixes.
8457 *) The Genesis of the OpenSSL rpject:
8458 We start with the latest (unreleased) SSLeay version 0.9.1b which Eric A.
8459 Young and Tim J. Hudson created while they were working for C2Net until
8461 [The OpenSSL Project]
8464 Changes between 0.9.0b and 0.9.1b [not released]
8466 *) Updated a few CA certificates under certs/
8469 *) Changed some BIGNUM api stuff.
8472 *) Various platform ports: OpenBSD, Ultrix, IRIX 64bit, NetBSD,
8473 DGUX x86, Linux Alpha, etc.
8476 *) New COMP library [crypto/comp/] for SSL Record Layer Compression:
8477 RLE (dummy implemented) and ZLIB (really implemented when ZLIB is
8481 *) Add -strparse option to asn1pars program which parses nested
8483 [Dr Stephen Henson <shenson@bigfoot.com>]
8485 *) Added "oid_file" to ssleay.cnf for "ca" and "req" programs.
8488 *) DSA fix for "ca" program.
8491 *) Added "-genkey" option to "dsaparam" program.
8494 *) Added RIPE MD160 (rmd160) message digest.
8497 *) Added -a (all) option to "ssleay version" command.
8500 *) Added PLATFORM define which is the id given to Configure.
8503 *) Added MemCheck_XXXX functions to crypto/mem.c for memory checking.
8506 *) Extended the ASN.1 parser routines.
8509 *) Extended BIO routines to support REUSEADDR, seek, tell, etc.
8512 *) Added a BN_CTX to the BN library.
8515 *) Fixed the weak key values in DES library
8518 *) Changed API in EVP library for cipher aliases.
8521 *) Added support for RC2/64bit cipher.
8524 *) Converted the lhash library to the crypto/mem.c functions.
8527 *) Added more recognized ASN.1 object ids.
8530 *) Added more RSA padding checks for SSL/TLS.
8533 *) Added BIO proxy/filter functionality.
8536 *) Added extra_certs to SSL_CTX which can be used
8537 send extra CA certificates to the client in the CA cert chain sending
8538 process. It can be configured with SSL_CTX_add_extra_chain_cert().
8541 *) Now Fortezza is denied in the authentication phase because
8542 this is key exchange mechanism is not supported by SSLeay at all.
8545 *) Additional PKCS1 checks.
8548 *) Support the string "TLSv1" for all TLS v1 ciphers.
8551 *) Added function SSL_get_ex_data_X509_STORE_CTX_idx() which gives the
8552 ex_data index of the SSL context in the X509_STORE_CTX ex_data.
8555 *) Fixed a few memory leaks.
8558 *) Fixed various code and comment typos.
8561 *) A minor bug in ssl/s3_clnt.c where there would always be 4 0
8562 bytes sent in the client random.
8563 [Edward Bishop <ebishop@spyglass.com>]
projects / openssl.git / blob