5 Changes between 0.9.8f and 0.9.9 [xx XXX xxxx]
7 *) s390x assembler pack.
10 *) ARMv4 assembler pack. ARMv4 refers to v4 and later ISA, not CPU
14 *) Implement Opaque PRF Input TLS extension as specified in
15 draft-rescorla-tls-opaque-prf-input-00.txt. Since this is not an
16 official specification yet and no extension type assignment by
17 IANA exists, this extension (for now) will have to be explicitly
18 enabled when building OpenSSL by providing the extension number
19 to use. For example, specify an option
21 -DTLSEXT_TYPE_opaque_prf_input=0x9527
23 to the "config" or "Configure" script to enable the extension,
24 assuming extension number 0x9527 (which is a completely arbitrary
25 and unofficial assignment based on the MD5 hash of the Internet
26 Draft). Note that by doing so, you potentially lose
27 interoperability with other TLS implementations since these might
28 be using the same extension number for other purposes.
30 SSL_set_tlsext_opaque_prf_input(ssl, src, len) is used to set the
31 opaque PRF input value to use in the handshake. This will create
32 an interal copy of the length-'len' string at 'src', and will
33 return non-zero for success.
35 To get more control and flexibility, provide a callback function
38 SSL_CTX_set_tlsext_opaque_prf_input_callback(ctx, cb)
39 SSL_CTX_set_tlsext_opaque_prf_input_callback_arg(ctx, arg)
43 int (*cb)(SSL *, void *peerinput, size_t len, void *arg);
46 Callback function 'cb' will be called in handshakes, and is
47 expected to use SSL_set_tlsext_opaque_prf_input() as appropriate.
48 Argument 'arg' is for application purposes (the value as given to
49 SSL_CTX_set_tlsext_opaque_prf_input_callback_arg() will directly
50 be provided to the callback function). The callback function
51 has to return non-zero to report success: usually 1 to use opaque
52 PRF input just if possible, or 2 to enforce use of the opaque PRF
53 input. In the latter case, the library will abort the handshake
54 if opaque PRF input is not successfully negotiated.
56 Arguments 'peerinput' and 'len' given to the callback function
57 will always be NULL and 0 in the case of a client. A server will
58 see the client's opaque PRF input through these variables if
59 available (NULL and 0 otherwise). Note that if the server
60 provides an opaque PRF input, the length must be the same as the
61 length of the client's opaque PRF input.
63 Note that the callback function will only be called when creating
64 a new session (session resumption can resume whatever was
65 previously negotiated), and will not be called in SSL 2.0
66 handshakes; thus, SSL_CTX_set_options(ctx, SSL_OP_NO_SSLv2) or
67 SSL_set_options(ssl, SSL_OP_NO_SSLv2) is especially recommended
68 for applications that need to enforce opaque PRF input.
72 *) Update ssl code to support digests other than SHA1+MD5 for handshake
75 [Victor B. Wagner <vitus@cryptocom.ru>]
77 *) Add RFC4507 support to OpenSSL. This includes the corrections in
78 RFC4507bis. The encrypted ticket format is an encrypted encoded
79 SSL_SESSION structure, that way new session features are automatically
82 If a client application caches session in an SSL_SESSION structure
83 support is transparent because tickets are now stored in the encoded
86 The SSL_CTX structure automatically generates keys for ticket
87 protection in servers so again support should be possible
88 with no application modification.
90 If a client or server wishes to disable RFC4507 support then the option
91 SSL_OP_NO_TICKET can be set.
93 Add a TLS extension debugging callback to allow the contents of any client
94 or server extensions to be examined.
96 This work was sponsored by Google.
99 *) Final changes to avoid use of pointer pointer casts in OpenSSL.
100 OpenSSL should now compile cleanly on gcc 4.2
101 [Peter Hartley <pdh@utter.chaos.org.uk>, Steve Henson]
103 *) Update SSL library to use new EVP_PKEY MAC API. Include generic MAC
104 support including streaming MAC support: this is required for GOST
106 [Victor B. Wagner <vitus@cryptocom.ru>, Steve Henson]
108 *) Add option -stream to use PKCS#7 streaming in smime utility. New
109 function i2d_PKCS7_bio_stream() and PEM_write_PKCS7_bio_stream()
110 to output in BER and PEM format.
113 *) Experimental support for use of HMAC via EVP_PKEY interface. This
114 allows HMAC to be handled via the EVP_DigestSign*() interface. The
115 EVP_PKEY "key" in this case is the HMAC key, potentially allowing
116 ENGINE support for HMAC keys which are unextractable. New -mac and
117 -macopt options to dgst utility.
120 *) New option -sigopt to dgst utility. Update dgst to use
121 EVP_Digest{Sign,Verify}*. These two changes make it possible to use
122 alternative signing paramaters such as X9.31 or PSS in the dgst
126 *) Change ssl_cipher_apply_rule(), the internal function that does
127 the work each time a ciphersuite string requests enabling
128 ("foo+bar"), moving ("+foo+bar"), disabling ("-foo+bar", or
129 removing ("!foo+bar") a class of ciphersuites: Now it maintains
130 the order of disabled ciphersuites such that those ciphersuites
131 that most recently went from enabled to disabled not only stay
132 in order with respect to each other, but also have higher priority
133 than other disabled ciphersuites the next time ciphersuites are
136 This means that you can now say, e.g., "PSK:-PSK:HIGH" to enable
137 the same ciphersuites as with "HIGH" alone, but in a specific
138 order where the PSK ciphersuites come first (since they are the
139 most recently disabled ciphersuites when "HIGH" is parsed).
141 Also, change ssl_create_cipher_list() (using this new
142 funcionality) such that between otherwise identical
143 cihpersuites, ephemeral ECDH is preferred over ephemeral DH in
147 *) Change ssl_create_cipher_list() so that it automatically
148 arranges the ciphersuites in reasonable order before starting
149 to process the rule string. Thus, the definition for "DEFAULT"
150 (SSL_DEFAULT_CIPHER_LIST) now is just "ALL:!aNULL:!eNULL", but
151 remains equivalent to "AES:ALL:!aNULL:!eNULL:+aECDH:+kRSA:+RC4:@STRENGTH".
152 This makes it much easier to arrive at a reasonable default order
153 in applications for which anonymous ciphers are OK (meaning
154 that you can't actually use DEFAULT).
155 [Bodo Moeller; suggested by Victor Duchovni]
157 *) Split the SSL/TLS algorithm mask (as used for ciphersuite string
158 processing) into multiple integers instead of setting
159 "SSL_MKEY_MASK" bits, "SSL_AUTH_MASK" bits, "SSL_ENC_MASK",
160 "SSL_MAC_MASK", and "SSL_SSL_MASK" bits all in a single integer.
161 (These masks as well as the individual bit definitions are hidden
162 away into the non-exported interface ssl/ssl_locl.h, so this
163 change to the definition of the SSL_CIPHER structure shouldn't
164 affect applications.) This give us more bits for each of these
165 categories, so there is no longer a need to coagulate AES128 and
166 AES256 into a single algorithm bit, and to coagulate Camellia128
167 and Camellia256 into a single algorithm bit, which has led to all
170 Thus, among other things, the kludge introduced in 0.9.7m and
171 0.9.8e for masking out AES256 independently of AES128 or masking
172 out Camellia256 independently of AES256 is not needed here in 0.9.9.
174 With the change, we also introduce new ciphersuite aliases that
175 so far were missing: "AES128", "AES256", "CAMELLIA128", and
179 *) Add support for dsa-with-SHA224 and dsa-with-SHA256.
180 Use the leftmost N bytes of the signature input if the input is
181 larger than the prime q (with N being the size in bytes of q).
184 *) Very *very* experimental PKCS#7 streaming encoder support. Nothing uses
185 it yet and it is largely untested.
188 *) Add support for the ecdsa-with-SHA224/256/384/512 signature types.
191 *) Initial incomplete changes to avoid need for function casts in OpenSSL
192 some compilers (gcc 4.2 and later) reject their use. Safestack is
193 reimplemented. Update ASN1 to avoid use of legacy functions.
196 *) Win32/64 targets are linked with Winsock2.
199 *) Add an X509_CRL_METHOD structure to allow CRL processing to be redirected
200 to external functions. This can be used to increase CRL handling
201 efficiency especially when CRLs are very large by (for example) storing
202 the CRL revoked certificates in a database.
205 *) Overhaul of by_dir code. Add support for dynamic loading of CRLs so
206 new CRLs added to a directory can be used. New command line option
207 -verify_return_error to s_client and s_server. This causes real errors
208 to be returned by the verify callback instead of carrying on no matter
209 what. This reflects the way a "real world" verify callback would behave.
212 *) GOST engine, supporting several GOST algorithms and public key formats.
213 Kindly donated by Cryptocom.
216 *) Partial support for Issuing Distribution Point CRL extension. CRLs
217 partitioned by DP are handled but no indirect CRL or reason partitioning
218 (yet). Complete overhaul of CRL handling: now the most suitable CRL is
219 selected via a scoring technique which handles IDP and AKID in CRLs.
222 *) New X509_STORE_CTX callbacks lookup_crls() and lookup_certs() which
223 will ultimately be used for all verify operations: this will remove the
224 X509_STORE dependency on certificate verification and allow alternative
225 lookup methods. X509_STORE based implementations of these two callbacks.
228 *) Allow multiple CRLs to exist in an X509_STORE with matching issuer names.
229 Modify get_crl() to find a valid (unexpired) CRL if possible.
232 *) New function X509_CRL_match() to check if two CRLs are identical. Normally
233 this would be called X509_CRL_cmp() but that name is already used by
234 a function that just compares CRL issuer names. Cache several CRL
235 extensions in X509_CRL structure and cache CRLDP in X509.
238 *) Store a "canonical" representation of X509_NAME structure (ASN1 Name)
239 this maps equivalent X509_NAME structures into a consistent structure.
240 Name comparison can then be performed rapidly using memcmp().
243 *) Non-blocking OCSP request processing. Add -timeout option to ocsp
247 *) Allow digests to supply their own micalg string for S/MIME type using
248 the ctrl EVP_MD_CTRL_MICALG.
251 *) During PKCS7 signing pass the PKCS7 SignerInfo structure to the
252 EVP_PKEY_METHOD before and after signing via the EVP_PKEY_CTRL_PKCS7_SIGN
253 ctrl. It can then customise the structure before and/or after signing
257 *) New function OBJ_add_sigid() to allow application defined signature OIDs
258 to be added to OpenSSLs internal tables. New function OBJ_sigid_free()
259 to free up any added signature OIDs.
262 *) New functions EVP_CIPHER_do_all(), EVP_CIPHER_do_all_sorted(),
263 EVP_MD_do_all() and EVP_MD_do_all_sorted() to enumerate internal
264 digest and cipher tables. New options added to openssl utility:
265 list-message-digest-algorithms and list-cipher-algorithms.
268 *) In addition to the numerical (unsigned long) thread ID, provide
269 for a pointer (void *) thread ID. This helps accomodate systems
270 that do not provide an unsigned long thread ID. OpenSSL assumes
271 it is in the same thread iff both the numerical and the pointer
272 thread ID agree; so applications are just required to define one
273 of them appropriately (e.g., by using a pointer to a per-thread
274 memory object malloc()ed by the application for the pointer-type
275 thread ID). Exactly analoguous to the existing functions
277 void CRYPTO_set_id_callback(unsigned long (*func)(void));
278 unsigned long (*CRYPTO_get_id_callback(void))(void);
279 unsigned long CRYPTO_thread_id(void);
281 we now have additional functions
283 void CRYPTO_set_idptr_callback(void *(*func)(void));
284 void *(*CRYPTO_get_idptr_callback(void))(void);
285 void *CRYPTO_thread_idptr(void);
287 also in <openssl/crypto.h>. The default value for
288 CRYPTO_thread_idptr() if the application has not provided its own
292 *) Change the array representation of binary polynomials: the list
293 of degrees of non-zero coefficients is now terminated with -1.
294 Previously it was terminated with 0, which was also part of the
295 value; thus, the array representation was not applicable to
296 polynomials where t^0 has coefficient zero. This change makes
297 the array representation useful in a more general context.
300 *) Various modifications and fixes to SSL/TLS cipher string
301 handling. For ECC, the code now distinguishes between fixed ECDH
302 with RSA certificates on the one hand and with ECDSA certificates
303 on the other hand, since these are separate ciphersuites. The
304 unused code for Fortezza ciphersuites has been removed.
306 For consistency with EDH, ephemeral ECDH is now called "EECDH"
307 (not "ECDHE"). For consistency with the code for DH
308 certificates, use of ECDH certificates is now considered ECDH
309 authentication, not RSA or ECDSA authentication (the latter is
310 merely the CA's signing algorithm and not actively used in the
313 The temporary ciphersuite alias "ECCdraft" is no longer
314 available, and ECC ciphersuites are no longer excluded from "ALL"
315 and "DEFAULT". The following aliases now exist for RFC 4492
316 ciphersuites, most of these by analogy with the DH case:
318 kECDHr - ECDH cert, signed with RSA
319 kECDHe - ECDH cert, signed with ECDSA
320 kECDH - ECDH cert (signed with either RSA or ECDSA)
321 kEECDH - ephemeral ECDH
322 ECDH - ECDH cert or ephemeral ECDH
328 AECDH - anonymous ECDH
329 EECDH - non-anonymous ephemeral ECDH (equivalent to "kEECDH:-AECDH")
333 *) Add additional S/MIME capabilities for AES and GOST ciphers if supported.
334 Use correct micalg parameters depending on digest(s) in signed message.
337 *) Add engine support for EVP_PKEY_ASN1_METHOD. Add functions to process
338 an ENGINE asn1 method. Support ENGINE lookups in the ASN1 code.
341 *) Initial engine support for EVP_PKEY_METHOD. New functions to permit
342 an engine to register a method. Add ENGINE lookups for methods and
343 functional reference processing.
346 *) New functions EVP_Digest{Sign,Verify)*. These are enchance versions of
347 EVP_{Sign,Verify}* which allow an application to customise the signature
351 *) New -resign option to smime utility. This adds one or more signers
352 to an existing PKCS#7 signedData structure. Also -md option to use an
353 alternative message digest algorithm for signing.
356 *) Tidy up PKCS#7 routines and add new functions to make it easier to
357 create PKCS7 structures containing multiple signers. Update smime
358 application to support multiple signers.
361 *) New -macalg option to pkcs12 utility to allow setting of an alternative
365 *) Initial support for PKCS#5 v2.0 PRFs other than default SHA1 HMAC.
366 Reorganize PBE internals to lookup from a static table using NIDs,
367 add support for HMAC PBE OID translation. Add a EVP_CIPHER ctrl:
368 EVP_CTRL_PBE_PRF_NID this allows a cipher to specify an alternative
369 PRF which will be automatically used with PBES2.
372 *) Replace the algorithm specific calls to generate keys in "req" with the
376 *) Update PKCS#7 enveloped data routines to use new API. This is now
377 supported by any public key method supporting the encrypt operation. A
378 ctrl is added to allow the public key algorithm to examine or modify
379 the PKCS#7 RecipientInfo structure if it needs to: for RSA this is
383 *) Add a ctrl to asn1 method to allow a public key algorithm to express
384 a default digest type to use. In most cases this will be SHA1 but some
385 algorithms (such as GOST) need to specify an alternative digest. The
386 return value indicates how strong the prefernce is 1 means optional and
387 2 is mandatory (that is it is the only supported type). Modify
388 ASN1_item_sign() to accept a NULL digest argument to indicate it should
389 use the default md. Update openssl utilities to use the default digest
390 type for signing if it is not explicitly indicated.
393 *) Use OID cross reference table in ASN1_sign() and ASN1_verify(). New
394 EVP_MD flag EVP_MD_FLAG_PKEY_METHOD_SIGNATURE. This uses the relevant
395 signing method from the key type. This effectively removes the link
396 between digests and public key types.
399 *) Add an OID cross reference table and utility functions. Its purpose is to
400 translate between signature OIDs such as SHA1WithrsaEncryption and SHA1,
401 rsaEncryption. This will allow some of the algorithm specific hackery
402 needed to use the correct OID to be removed.
405 *) Remove algorithm specific dependencies when setting PKCS7_SIGNER_INFO
406 structures for PKCS7_sign(). They are now set up by the relevant public
410 *) Add provisional EC pkey method with support for ECDSA and ECDH.
413 *) Add support for key derivation (agreement) in the API, DH method and
417 *) Add DSA pkey method and DH pkey methods, extend DH ASN1 method to support
418 public and private key formats. As a side effect these add additional
419 command line functionality not previously available: DSA signatures can be
420 generated and verified using pkeyutl and DH key support and generation in
425 [Oliver Tappe <zooey@hirschkaefer.de>]
427 *) New make target "install_html_docs" installs HTML renditions of the
429 [Oliver Tappe <zooey@hirschkaefer.de>]
431 *) New utility "genpkey" this is analagous to "genrsa" etc except it can
432 generate keys for any algorithm. Extend and update EVP_PKEY_METHOD to
433 support key and parameter generation and add initial key generation
434 functionality for RSA.
437 *) Add functions for main EVP_PKEY_method operations. The undocumented
438 functions EVP_PKEY_{encrypt,decrypt} have been renamed to
439 EVP_PKEY_{encrypt,decrypt}_old.
442 *) Initial definitions for EVP_PKEY_METHOD. This will be a high level public
443 key API, doesn't do much yet.
446 *) New function EVP_PKEY_asn1_get0_info() to retrieve information about
447 public key algorithms. New option to openssl utility:
448 "list-public-key-algorithms" to print out info.
451 *) Implement the Supported Elliptic Curves Extension for
452 ECC ciphersuites from draft-ietf-tls-ecc-12.txt.
455 *) Don't free up OIDs in OBJ_cleanup() if they are in use by EVP_MD or
456 EVP_CIPHER structures to avoid later problems in EVP_cleanup().
459 *) New utilities pkey and pkeyparam. These are similar to algorithm specific
460 utilities such as rsa, dsa, dsaparam etc except they process any key
464 *) Transfer public key printing routines to EVP_PKEY_ASN1_METHOD. New
465 functions EVP_PKEY_print_public(), EVP_PKEY_print_private(),
466 EVP_PKEY_print_param() to print public key data from an EVP_PKEY
470 *) Initial support for pluggable public key ASN1.
471 De-spaghettify the public key ASN1 handling. Move public and private
472 key ASN1 handling to a new EVP_PKEY_ASN1_METHOD structure. Relocate
473 algorithm specific handling to a single module within the relevant
474 algorithm directory. Add functions to allow (near) opaque processing
475 of public and private key structures.
478 *) Implement the Supported Point Formats Extension for
479 ECC ciphersuites from draft-ietf-tls-ecc-12.txt.
482 *) Add initial support for RFC 4279 PSK TLS ciphersuites. Add members
483 for the psk identity [hint] and the psk callback functions to the
484 SSL_SESSION, SSL and SSL_CTX structure.
487 PSK-RC4-SHA, PSK-3DES-EDE-CBC-SHA, PSK-AES128-CBC-SHA,
491 SSL_CTX_use_psk_identity_hint
492 SSL_get_psk_identity_hint
494 SSL_use_psk_identity_hint
496 [Mika Kousa and Pasi Eronen of Nokia Corporation]
498 *) Add RFC 3161 compliant time stamp request creation, response generation
499 and response verification functionality.
500 [Zoltán Glózik <zglozik@opentsa.org>, The OpenTSA Project]
502 *) Add initial support for TLS extensions, specifically for the server_name
503 extension so far. The SSL_SESSION, SSL_CTX, and SSL data structures now
504 have new members for a host name. The SSL data structure has an
505 additional member SSL_CTX *initial_ctx so that new sessions can be
506 stored in that context to allow for session resumption, even after the
507 SSL has been switched to a new SSL_CTX in reaction to a client's
508 server_name extension.
510 New functions (subject to change):
513 SSL_get_servername_type()
516 New CTRL codes and macros (subject to change):
518 SSL_CTRL_SET_TLSEXT_SERVERNAME_CB
519 - SSL_CTX_set_tlsext_servername_callback()
520 SSL_CTRL_SET_TLSEXT_SERVERNAME_ARG
521 - SSL_CTX_set_tlsext_servername_arg()
522 SSL_CTRL_SET_TLSEXT_HOSTNAME - SSL_set_tlsext_host_name()
524 openssl s_client has a new '-servername ...' option.
526 openssl s_server has new options '-servername_host ...', '-cert2 ...',
527 '-key2 ...', '-servername_fatal' (subject to change). This allows
528 testing the HostName extension for a specific single host name ('-cert'
529 and '-key' remain fallbacks for handshakes without HostName
530 negotiation). If the unrecogninzed_name alert has to be sent, this by
531 default is a warning; it becomes fatal with the '-servername_fatal'
534 [Peter Sylvester, Remy Allais, Christophe Renou]
536 *) Whirlpool hash implementation is added.
539 *) BIGNUM code on 64-bit SPARCv9 targets is switched from bn(64,64) to
540 bn(64,32). Because of instruction set limitations it doesn't have
541 any negative impact on performance. This was done mostly in order
542 to make it possible to share assembler modules, such as bn_mul_mont
543 implementations, between 32- and 64-bit builds without hassle.
546 *) Move code previously exiled into file crypto/ec/ec2_smpt.c
547 to ec2_smpl.c, and no longer require the OPENSSL_EC_BIN_PT_COMP
551 *) New candidate for BIGNUM assembler implementation, bn_mul_mont,
552 dedicated Montgomery multiplication procedure, is introduced.
553 BN_MONT_CTX is modified to allow bn_mul_mont to reach for higher
554 "64-bit" performance on certain 32-bit targets.
557 *) New option SSL_OP_NO_COMP to disable use of compression selectively
558 in SSL structures. New SSL ctrl to set maximum send fragment size.
559 Save memory by seeting the I/O buffer sizes dynamically instead of
560 using the maximum available value.
563 *) New option -V for 'openssl ciphers'. This prints the ciphersuite code
564 in addition to the text details.
567 *) Very, very preliminary EXPERIMENTAL support for printing of general
568 ASN1 structures. This currently produces rather ugly output and doesn't
569 handle several customised structures at all.
572 *) Integrated support for PVK file format and some related formats such
573 as MS PUBLICKEYBLOB and PRIVATEKEYBLOB. Command line switches to support
574 these in the 'rsa' and 'dsa' utilities.
577 *) Support for PKCS#1 RSAPublicKey format on rsa utility command line.
580 *) Remove the ancient ASN1_METHOD code. This was only ever used in one
581 place for the (very old) "NETSCAPE" format certificates which are now
582 handled using new ASN1 code equivalents.
585 *) Let the TLSv1_method() etc. functions return a 'const' SSL_METHOD
586 pointer and make the SSL_METHOD parameter in SSL_CTX_new,
587 SSL_CTX_set_ssl_version and SSL_set_ssl_method 'const'.
590 *) Modify CRL distribution points extension code to print out previously
591 unsupported fields. Enhance extension setting code to allow setting of
595 *) Add print and set support for Issuing Distribution Point CRL extension.
598 *) Change 'Configure' script to enable Camellia by default.
601 Changes between 0.9.8f and 0.9.8g [xx XXX xxxx]
603 *) Implement certificate status request TLS extension defined in RFC3546.
604 A client can set the appropriate parameters and receive the encoded
605 OCSP response via a callback. A server can query the supplied parameters
606 and set the encoded OCSP response in the callback. Add simplified examples
607 to s_client and s_server.
610 Changes between 0.9.8e and 0.9.8f [11 Oct 2007]
612 *) Mitigate attack on final subtraction in Montgomery reduction.
615 *) Fix crypto/ec/ec_mult.c to work properly with scalars of value 0
616 (which previously caused an internal error).
619 *) Squeeze another 10% out of IGE mode when in != out.
622 *) AES IGE mode speedup.
623 [Dean Gaudet (Google)]
625 *) Add the Korean symmetric 128-bit cipher SEED (see
626 http://www.kisa.or.kr/kisa/seed/jsp/seed_eng.jsp) and
627 add SEED ciphersuites from RFC 4162:
629 TLS_RSA_WITH_SEED_CBC_SHA = "SEED-SHA"
630 TLS_DHE_DSS_WITH_SEED_CBC_SHA = "DHE-DSS-SEED-SHA"
631 TLS_DHE_RSA_WITH_SEED_CBC_SHA = "DHE-RSA-SEED-SHA"
632 TLS_DH_anon_WITH_SEED_CBC_SHA = "ADH-SEED-SHA"
634 To minimize changes between patchlevels in the OpenSSL 0.9.8
635 series, SEED remains excluded from compilation unless OpenSSL
636 is configured with 'enable-seed'.
639 *) Mitigate branch prediction attacks, which can be practical if a
640 single processor is shared, allowing a spy process to extract
641 information. For detailed background information, see
642 http://eprint.iacr.org/2007/039 (O. Aciicmez, S. Gueron,
643 J.-P. Seifert, "New Branch Prediction Vulnerabilities in OpenSSL
644 and Necessary Software Countermeasures"). The core of the change
645 are new versions BN_div_no_branch() and
646 BN_mod_inverse_no_branch() of BN_div() and BN_mod_inverse(),
647 respectively, which are slower, but avoid the security-relevant
648 conditional branches. These are automatically called by BN_div()
649 and BN_mod_inverse() if the flag BN_FLG_CONSTTIME is set for one
650 of the input BIGNUMs. Also, BN_is_bit_set() has been changed to
651 remove a conditional branch.
653 BN_FLG_CONSTTIME is the new name for the previous
654 BN_FLG_EXP_CONSTTIME flag, since it now affects more than just
655 modular exponentiation. (Since OpenSSL 0.9.7h, setting this flag
656 in the exponent causes BN_mod_exp_mont() to use the alternative
657 implementation in BN_mod_exp_mont_consttime().) The old name
658 remains as a deprecated alias.
660 Similary, RSA_FLAG_NO_EXP_CONSTTIME is replaced by a more general
661 RSA_FLAG_NO_CONSTTIME flag since the RSA implementation now uses
662 constant-time implementations for more than just exponentiation.
663 Here too the old name is kept as a deprecated alias.
665 BN_BLINDING_new() will now use BN_dup() for the modulus so that
666 the BN_BLINDING structure gets an independent copy of the
667 modulus. This means that the previous "BIGNUM *m" argument to
668 BN_BLINDING_new() and to BN_BLINDING_create_param() now
669 essentially becomes "const BIGNUM *m", although we can't actually
670 change this in the header file before 0.9.9. It allows
671 RSA_setup_blinding() to use BN_with_flags() on the modulus to
672 enable BN_FLG_CONSTTIME.
674 [Matthew D Wood (Intel Corp)]
676 *) In the SSL/TLS server implementation, be strict about session ID
677 context matching (which matters if an application uses a single
678 external cache for different purposes). Previously,
679 out-of-context reuse was forbidden only if SSL_VERIFY_PEER was
680 set. This did ensure strict client verification, but meant that,
681 with applications using a single external cache for quite
682 different requirements, clients could circumvent ciphersuite
683 restrictions for a given session ID context by starting a session
684 in a different context.
687 *) Include "!eNULL" in SSL_DEFAULT_CIPHER_LIST to make sure that
688 a ciphersuite string such as "DEFAULT:RSA" cannot enable
689 authentication-only ciphersuites.
692 Changes between 0.9.8d and 0.9.8e [23 Feb 2007]
694 *) Since AES128 and AES256 (and similarly Camellia128 and
695 Camellia256) share a single mask bit in the logic of
696 ssl/ssl_ciph.c, the code for masking out disabled ciphers needs a
697 kludge to work properly if AES128 is available and AES256 isn't
698 (or if Camellia128 is available and Camellia256 isn't).
701 *) Fix the BIT STRING encoding generated by crypto/ec/ec_asn1.c
702 (within i2d_ECPrivateKey, i2d_ECPKParameters, i2d_ECParameters):
703 When a point or a seed is encoded in a BIT STRING, we need to
704 prevent the removal of trailing zero bits to get the proper DER
705 encoding. (By default, crypto/asn1/a_bitstr.c assumes the case
706 of a NamedBitList, for which trailing 0 bits need to be removed.)
709 *) Have SSL/TLS server implementation tolerate "mismatched" record
710 protocol version while receiving ClientHello even if the
711 ClientHello is fragmented. (The server can't insist on the
712 particular protocol version it has chosen before the ServerHello
713 message has informed the client about his choice.)
716 *) Add RFC 3779 support.
717 [Rob Austein for ARIN, Ben Laurie]
719 *) Load error codes if they are not already present instead of using a
720 static variable. This allows them to be cleanly unloaded and reloaded.
721 Improve header file function name parsing.
724 *) extend SMTP and IMAP protocol emulation in s_client to use EHLO
725 or CAPABILITY handshake as required by RFCs.
728 Changes between 0.9.8c and 0.9.8d [28 Sep 2006]
730 *) Introduce limits to prevent malicious keys being able to
731 cause a denial of service. (CVE-2006-2940)
732 [Steve Henson, Bodo Moeller]
734 *) Fix ASN.1 parsing of certain invalid structures that can result
735 in a denial of service. (CVE-2006-2937) [Steve Henson]
737 *) Fix buffer overflow in SSL_get_shared_ciphers() function.
738 (CVE-2006-3738) [Tavis Ormandy and Will Drewry, Google Security Team]
740 *) Fix SSL client code which could crash if connecting to a
741 malicious SSLv2 server. (CVE-2006-4343)
742 [Tavis Ormandy and Will Drewry, Google Security Team]
744 *) Since 0.9.8b, ciphersuite strings naming explicit ciphersuites
745 match only those. Before that, "AES256-SHA" would be interpreted
746 as a pattern and match "AES128-SHA" too (since AES128-SHA got
747 the same strength classification in 0.9.7h) as we currently only
748 have a single AES bit in the ciphersuite description bitmap.
749 That change, however, also applied to ciphersuite strings such as
750 "RC4-MD5" that intentionally matched multiple ciphersuites --
751 namely, SSL 2.0 ciphersuites in addition to the more common ones
752 from SSL 3.0/TLS 1.0.
754 So we change the selection algorithm again: Naming an explicit
755 ciphersuite selects this one ciphersuite, and any other similar
756 ciphersuite (same bitmap) from *other* protocol versions.
757 Thus, "RC4-MD5" again will properly select both the SSL 2.0
758 ciphersuite and the SSL 3.0/TLS 1.0 ciphersuite.
760 Since SSL 2.0 does not have any ciphersuites for which the
761 128/256 bit distinction would be relevant, this works for now.
762 The proper fix will be to use different bits for AES128 and
763 AES256, which would have avoided the problems from the beginning;
764 however, bits are scarce, so we can only do this in a new release
765 (not just a patchlevel) when we can change the SSL_CIPHER
766 definition to split the single 'unsigned long mask' bitmap into
767 multiple values to extend the available space.
771 Changes between 0.9.8b and 0.9.8c [05 Sep 2006]
773 *) Avoid PKCS #1 v1.5 signature attack discovered by Daniel Bleichenbacher
774 (CVE-2006-4339) [Ben Laurie and Google Security Team]
776 *) Add AES IGE and biIGE modes.
779 *) Change the Unix randomness entropy gathering to use poll() when
780 possible instead of select(), since the latter has some
781 undesirable limitations.
782 [Darryl Miles via Richard Levitte and Bodo Moeller]
784 *) Disable "ECCdraft" ciphersuites more thoroughly. Now special
785 treatment in ssl/ssl_ciph.s makes sure that these ciphersuites
786 cannot be implicitly activated as part of, e.g., the "AES" alias.
787 However, please upgrade to OpenSSL 0.9.9[-dev] for
788 non-experimental use of the ECC ciphersuites to get TLS extension
789 support, which is required for curve and point format negotiation
790 to avoid potential handshake problems.
793 *) Disable rogue ciphersuites:
795 - SSLv2 0x08 0x00 0x80 ("RC4-64-MD5")
796 - SSLv3/TLSv1 0x00 0x61 ("EXP1024-RC2-CBC-MD5")
797 - SSLv3/TLSv1 0x00 0x60 ("EXP1024-RC4-MD5")
799 The latter two were purportedly from
800 draft-ietf-tls-56-bit-ciphersuites-0[01].txt, but do not really
803 Also deactivate the remaining ciphersuites from
804 draft-ietf-tls-56-bit-ciphersuites-01.txt. These are just as
805 unofficial, and the ID has long expired.
808 *) Fix RSA blinding Heisenbug (problems sometimes occured on
809 dual-core machines) and other potential thread-safety issues.
812 *) Add the symmetric cipher Camellia (128-bit, 192-bit, 256-bit key
813 versions), which is now available for royalty-free use
814 (see http://info.isl.ntt.co.jp/crypt/eng/info/chiteki.html).
815 Also, add Camellia TLS ciphersuites from RFC 4132.
817 To minimize changes between patchlevels in the OpenSSL 0.9.8
818 series, Camellia remains excluded from compilation unless OpenSSL
819 is configured with 'enable-camellia'.
822 *) Disable the padding bug check when compression is in use. The padding
823 bug check assumes the first packet is of even length, this is not
824 necessarily true if compresssion is enabled and can result in false
825 positives causing handshake failure. The actual bug test is ancient
826 code so it is hoped that implementations will either have fixed it by
827 now or any which still have the bug do not support compression.
830 Changes between 0.9.8a and 0.9.8b [04 May 2006]
832 *) When applying a cipher rule check to see if string match is an explicit
833 cipher suite and only match that one cipher suite if it is.
836 *) Link in manifests for VC++ if needed.
837 [Austin Ziegler <halostatue@gmail.com>]
839 *) Update support for ECC-based TLS ciphersuites according to
840 draft-ietf-tls-ecc-12.txt with proposed changes (but without
841 TLS extensions, which are supported starting with the 0.9.9
842 branch, not in the OpenSSL 0.9.8 branch).
845 *) New functions EVP_CIPHER_CTX_new() and EVP_CIPHER_CTX_free() to support
846 opaque EVP_CIPHER_CTX handling.
849 *) Fixes and enhancements to zlib compression code. We now only use
850 "zlib1.dll" and use the default __cdecl calling convention on Win32
851 to conform with the standards mentioned here:
852 http://www.zlib.net/DLL_FAQ.txt
853 Static zlib linking now works on Windows and the new --with-zlib-include
854 --with-zlib-lib options to Configure can be used to supply the location
855 of the headers and library. Gracefully handle case where zlib library
859 *) Several fixes and enhancements to the OID generation code. The old code
860 sometimes allowed invalid OIDs (1.X for X >= 40 for example), couldn't
861 handle numbers larger than ULONG_MAX, truncated printing and had a
862 non standard OBJ_obj2txt() behaviour.
865 *) Add support for building of engines under engine/ as shared libraries
866 under VC++ build system.
869 *) Corrected the numerous bugs in the Win32 path splitter in DSO.
870 Hopefully, we will not see any false combination of paths any more.
873 Changes between 0.9.8 and 0.9.8a [11 Oct 2005]
875 *) Remove the functionality of SSL_OP_MSIE_SSLV2_RSA_PADDING
876 (part of SSL_OP_ALL). This option used to disable the
877 countermeasure against man-in-the-middle protocol-version
878 rollback in the SSL 2.0 server implementation, which is a bad
879 idea. (CVE-2005-2969)
881 [Bodo Moeller; problem pointed out by Yutaka Oiwa (Research Center
882 for Information Security, National Institute of Advanced Industrial
883 Science and Technology [AIST], Japan)]
885 *) Add two function to clear and return the verify parameter flags.
888 *) Keep cipherlists sorted in the source instead of sorting them at
889 runtime, thus removing the need for a lock.
892 *) Avoid some small subgroup attacks in Diffie-Hellman.
893 [Nick Mathewson and Ben Laurie]
895 *) Add functions for well-known primes.
898 *) Extended Windows CE support.
899 [Satoshi Nakamura and Andy Polyakov]
901 *) Initialize SSL_METHOD structures at compile time instead of during
902 runtime, thus removing the need for a lock.
905 *) Make PKCS7_decrypt() work even if no certificate is supplied by
906 attempting to decrypt each encrypted key in turn. Add support to
910 Changes between 0.9.7h and 0.9.8 [05 Jul 2005]
912 [NB: OpenSSL 0.9.7i and later 0.9.7 patch levels were released after
915 *) Add libcrypto.pc and libssl.pc for those who feel they need them.
918 *) Change CA.sh and CA.pl so they don't bundle the CSR and the private
919 key into the same file any more.
922 *) Add initial support for Win64, both IA64 and AMD64/x64 flavors.
925 *) Add -utf8 command line and config file option to 'ca'.
926 [Stefan <stf@udoma.org]
928 *) Removed the macro des_crypt(), as it seems to conflict with some
929 libraries. Use DES_crypt().
932 *) Correct naming of the 'chil' and '4758cca' ENGINEs. This
933 involves renaming the source and generated shared-libs for
934 both. The engines will accept the corrected or legacy ids
935 ('ncipher' and '4758_cca' respectively) when binding. NB,
936 this only applies when building 'shared'.
937 [Corinna Vinschen <vinschen@redhat.com> and Geoff Thorpe]
939 *) Add attribute functions to EVP_PKEY structure. Modify
940 PKCS12_create() to recognize a CSP name attribute and
941 use it. Make -CSP option work again in pkcs12 utility.
944 *) Add new functionality to the bn blinding code:
945 - automatic re-creation of the BN_BLINDING parameters after
946 a fixed number of uses (currently 32)
947 - add new function for parameter creation
948 - introduce flags to control the update behaviour of the
949 BN_BLINDING parameters
950 - hide BN_BLINDING structure
951 Add a second BN_BLINDING slot to the RSA structure to improve
952 performance when a single RSA object is shared among several
956 *) Add support for DTLS.
957 [Nagendra Modadugu <nagendra@cs.stanford.edu> and Ben Laurie]
959 *) Add support for DER encoded private keys (SSL_FILETYPE_ASN1)
960 to SSL_CTX_use_PrivateKey_file() and SSL_use_PrivateKey_file()
963 *) Remove buggy and incompletet DH cert support from
964 ssl/ssl_rsa.c and ssl/s3_both.c
967 *) Use SHA-1 instead of MD5 as the default digest algorithm for
968 the apps/openssl applications.
971 *) Compile clean with "-Wall -Wmissing-prototypes
972 -Wstrict-prototypes -Wmissing-declarations -Werror". Currently
973 DEBUG_SAFESTACK must also be set.
976 *) Change ./Configure so that certain algorithms can be disabled by default.
977 The new counterpiece to "no-xxx" is "enable-xxx".
979 The patented RC5 and MDC2 algorithms will now be disabled unless
980 "enable-rc5" and "enable-mdc2", respectively, are specified.
982 (IDEA remains enabled despite being patented. This is because IDEA
983 is frequently required for interoperability, and there is no license
984 fee for non-commercial use. As before, "no-idea" can be used to
985 avoid this algorithm.)
989 *) Add processing of proxy certificates (see RFC 3820). This work was
990 sponsored by KTH (The Royal Institute of Technology in Stockholm) and
991 EGEE (Enabling Grids for E-science in Europe).
994 *) RC4 performance overhaul on modern architectures/implementations, such
995 as Intel P4, IA-64 and AMD64.
998 *) New utility extract-section.pl. This can be used specify an alternative
999 section number in a pod file instead of having to treat each file as
1000 a separate case in Makefile. This can be done by adding two lines to the
1003 =for comment openssl_section:XXX
1005 The blank line is mandatory.
1009 *) New arguments -certform, -keyform and -pass for s_client and s_server
1010 to allow alternative format key and certificate files and passphrase
1014 *) New structure X509_VERIFY_PARAM which combines current verify parameters,
1015 update associated structures and add various utility functions.
1017 Add new policy related verify parameters, include policy checking in
1018 standard verify code. Enhance 'smime' application with extra parameters
1019 to support policy checking and print out.
1022 *) Add a new engine to support VIA PadLock ACE extensions in the VIA C3
1023 Nehemiah processors. These extensions support AES encryption in hardware
1024 as well as RNG (though RNG support is currently disabled).
1025 [Michal Ludvig <michal@logix.cz>, with help from Andy Polyakov]
1027 *) Deprecate BN_[get|set]_params() functions (they were ignored internally).
1030 *) New FIPS 180-2 algorithms, SHA-224/-256/-384/-512 are implemented.
1031 [Andy Polyakov and a number of other people]
1033 *) Improved PowerPC platform support. Most notably BIGNUM assembler
1034 implementation contributed by IBM.
1035 [Suresh Chari, Peter Waltenberg, Andy Polyakov]
1037 *) The new 'RSA_generate_key_ex' function now takes a BIGNUM for the public
1038 exponent rather than 'unsigned long'. There is a corresponding change to
1039 the new 'rsa_keygen' element of the RSA_METHOD structure.
1040 [Jelte Jansen, Geoff Thorpe]
1042 *) Functionality for creating the initial serial number file is now
1043 moved from CA.pl to the 'ca' utility with a new option -create_serial.
1045 (Before OpenSSL 0.9.7e, CA.pl used to initialize the serial
1046 number file to 1, which is bound to cause problems. To avoid
1047 the problems while respecting compatibility between different 0.9.7
1048 patchlevels, 0.9.7e employed 'openssl x509 -next_serial' in
1049 CA.pl for serial number initialization. With the new release 0.9.8,
1050 we can fix the problem directly in the 'ca' utility.)
1053 *) Reduced header interdepencies by declaring more opaque objects in
1054 ossl_typ.h. As a consequence, including some headers (eg. engine.h) will
1055 give fewer recursive includes, which could break lazy source code - so
1056 this change is covered by the OPENSSL_NO_DEPRECATED symbol. As always,
1057 developers should define this symbol when building and using openssl to
1058 ensure they track the recommended behaviour, interfaces, [etc], but
1059 backwards-compatible behaviour prevails when this isn't defined.
1062 *) New function X509_POLICY_NODE_print() which prints out policy nodes.
1065 *) Add new EVP function EVP_CIPHER_CTX_rand_key and associated functionality.
1066 This will generate a random key of the appropriate length based on the
1067 cipher context. The EVP_CIPHER can provide its own random key generation
1068 routine to support keys of a specific form. This is used in the des and
1069 3des routines to generate a key of the correct parity. Update S/MIME
1070 code to use new functions and hence generate correct parity DES keys.
1071 Add EVP_CHECK_DES_KEY #define to return an error if the key is not
1072 valid (weak or incorrect parity).
1075 *) Add a local set of CRLs that can be used by X509_verify_cert() as well
1076 as looking them up. This is useful when the verified structure may contain
1077 CRLs, for example PKCS#7 signedData. Modify PKCS7_verify() to use any CRLs
1078 present unless the new PKCS7_NO_CRL flag is asserted.
1081 *) Extend ASN1 oid configuration module. It now additionally accepts the
1084 shortName = some long name, 1.2.3.4
1087 *) Reimplemented the BN_CTX implementation. There is now no more static
1088 limitation on the number of variables it can handle nor the depth of the
1089 "stack" handling for BN_CTX_start()/BN_CTX_end() pairs. The stack
1090 information can now expand as required, and rather than having a single
1091 static array of bignums, BN_CTX now uses a linked-list of such arrays
1092 allowing it to expand on demand whilst maintaining the usefulness of
1093 BN_CTX's "bundling".
1096 *) Add a missing BN_CTX parameter to the 'rsa_mod_exp' callback in RSA_METHOD
1097 to allow all RSA operations to function using a single BN_CTX.
1100 *) Preliminary support for certificate policy evaluation and checking. This
1101 is initially intended to pass the tests outlined in "Conformance Testing
1102 of Relying Party Client Certificate Path Processing Logic" v1.07.
1105 *) bn_dup_expand() has been deprecated, it was introduced in 0.9.7 and
1106 remained unused and not that useful. A variety of other little bignum
1107 tweaks and fixes have also been made continuing on from the audit (see
1111 *) Constify all or almost all d2i, c2i, s2i and r2i functions, along with
1112 associated ASN1, EVP and SSL functions and old ASN1 macros.
1115 *) BN_zero() only needs to set 'top' and 'neg' to zero for correct results,
1116 and this should never fail. So the return value from the use of
1117 BN_set_word() (which can fail due to needless expansion) is now deprecated;
1118 if OPENSSL_NO_DEPRECATED is defined, BN_zero() is a void macro.
1121 *) BN_CTX_get() should return zero-valued bignums, providing the same
1122 initialised value as BN_new().
1123 [Geoff Thorpe, suggested by Ulf Möller]
1125 *) Support for inhibitAnyPolicy certificate extension.
1128 *) An audit of the BIGNUM code is underway, for which debugging code is
1129 enabled when BN_DEBUG is defined. This makes stricter enforcements on what
1130 is considered valid when processing BIGNUMs, and causes execution to
1131 assert() when a problem is discovered. If BN_DEBUG_RAND is defined,
1132 further steps are taken to deliberately pollute unused data in BIGNUM
1133 structures to try and expose faulty code further on. For now, openssl will
1134 (in its default mode of operation) continue to tolerate the inconsistent
1135 forms that it has tolerated in the past, but authors and packagers should
1136 consider trying openssl and their own applications when compiled with
1137 these debugging symbols defined. It will help highlight potential bugs in
1138 their own code, and will improve the test coverage for OpenSSL itself. At
1139 some point, these tighter rules will become openssl's default to improve
1140 maintainability, though the assert()s and other overheads will remain only
1141 in debugging configurations. See bn.h for more details.
1142 [Geoff Thorpe, Nils Larsch, Ulf Möller]
1144 *) BN_CTX_init() has been deprecated, as BN_CTX is an opaque structure
1145 that can only be obtained through BN_CTX_new() (which implicitly
1146 initialises it). The presence of this function only made it possible
1147 to overwrite an existing structure (and cause memory leaks).
1150 *) Because of the callback-based approach for implementing LHASH as a
1151 template type, lh_insert() adds opaque objects to hash-tables and
1152 lh_doall() or lh_doall_arg() are typically used with a destructor callback
1153 to clean up those corresponding objects before destroying the hash table
1154 (and losing the object pointers). So some over-zealous constifications in
1155 LHASH have been relaxed so that lh_insert() does not take (nor store) the
1156 objects as "const" and the lh_doall[_arg] callback wrappers are not
1157 prototyped to have "const" restrictions on the object pointers they are
1158 given (and so aren't required to cast them away any more).
1161 *) The tmdiff.h API was so ugly and minimal that our own timing utility
1162 (speed) prefers to use its own implementation. The two implementations
1163 haven't been consolidated as yet (volunteers?) but the tmdiff API has had
1164 its object type properly exposed (MS_TM) instead of casting to/from "char
1165 *". This may still change yet if someone realises MS_TM and "ms_time_***"
1166 aren't necessarily the greatest nomenclatures - but this is what was used
1167 internally to the implementation so I've used that for now.
1170 *) Ensure that deprecated functions do not get compiled when
1171 OPENSSL_NO_DEPRECATED is defined. Some "openssl" subcommands and a few of
1172 the self-tests were still using deprecated key-generation functions so
1173 these have been updated also.
1176 *) Reorganise PKCS#7 code to separate the digest location functionality
1177 into PKCS7_find_digest(), digest addtion into PKCS7_bio_add_digest().
1178 New function PKCS7_set_digest() to set the digest type for PKCS#7
1179 digestedData type. Add additional code to correctly generate the
1180 digestedData type and add support for this type in PKCS7 initialization
1184 *) New function PKCS7_set0_type_other() this initializes a PKCS7
1185 structure of type "other".
1188 *) Fix prime generation loop in crypto/bn/bn_prime.pl by making
1189 sure the loop does correctly stop and breaking ("division by zero")
1190 modulus operations are not performed. The (pre-generated) prime
1191 table crypto/bn/bn_prime.h was already correct, but it could not be
1192 re-generated on some platforms because of the "division by zero"
1193 situation in the script.
1194 [Ralf S. Engelschall]
1196 *) Update support for ECC-based TLS ciphersuites according to
1197 draft-ietf-tls-ecc-03.txt: the KDF1 key derivation function with
1198 SHA-1 now is only used for "small" curves (where the
1199 representation of a field element takes up to 24 bytes); for
1200 larger curves, the field element resulting from ECDH is directly
1201 used as premaster secret.
1202 [Douglas Stebila (Sun Microsystems Laboratories)]
1204 *) Add code for kP+lQ timings to crypto/ec/ectest.c, and add SEC2
1205 curve secp160r1 to the tests.
1206 [Douglas Stebila (Sun Microsystems Laboratories)]
1208 *) Add the possibility to load symbols globally with DSO.
1209 [Götz Babin-Ebell <babin-ebell@trustcenter.de> via Richard Levitte]
1211 *) Add the functions ERR_set_mark() and ERR_pop_to_mark() for better
1212 control of the error stack.
1215 *) Add support for STORE in ENGINE.
1218 *) Add the STORE type. The intention is to provide a common interface
1219 to certificate and key stores, be they simple file-based stores, or
1220 HSM-type store, or LDAP stores, or...
1221 NOTE: The code is currently UNTESTED and isn't really used anywhere.
1224 *) Add a generic structure called OPENSSL_ITEM. This can be used to
1225 pass a list of arguments to any function as well as provide a way
1226 for a function to pass data back to the caller.
1229 *) Add the functions BUF_strndup() and BUF_memdup(). BUF_strndup()
1230 works like BUF_strdup() but can be used to duplicate a portion of
1231 a string. The copy gets NUL-terminated. BUF_memdup() duplicates
1235 *) Add the function sk_find_ex() which works like sk_find(), but will
1236 return an index to an element even if an exact match couldn't be
1237 found. The index is guaranteed to point at the element where the
1238 searched-for key would be inserted to preserve sorting order.
1241 *) Add the function OBJ_bsearch_ex() which works like OBJ_bsearch() but
1242 takes an extra flags argument for optional functionality. Currently,
1243 the following flags are defined:
1245 OBJ_BSEARCH_VALUE_ON_NOMATCH
1246 This one gets OBJ_bsearch_ex() to return a pointer to the first
1247 element where the comparing function returns a negative or zero
1250 OBJ_BSEARCH_FIRST_VALUE_ON_MATCH
1251 This one gets OBJ_bsearch_ex() to return a pointer to the first
1252 element where the comparing function returns zero. This is useful
1253 if there are more than one element where the comparing function
1257 *) Make it possible to create self-signed certificates with 'openssl ca'
1258 in such a way that the self-signed certificate becomes part of the
1259 CA database and uses the same mechanisms for serial number generation
1260 as all other certificate signing. The new flag '-selfsign' enables
1261 this functionality. Adapt CA.sh and CA.pl.in.
1264 *) Add functionality to check the public key of a certificate request
1265 against a given private. This is useful to check that a certificate
1266 request can be signed by that key (self-signing).
1269 *) Make it possible to have multiple active certificates with the same
1270 subject in the CA index file. This is done only if the keyword
1271 'unique_subject' is set to 'no' in the main CA section (default
1272 if 'CA_default') of the configuration file. The value is saved
1273 with the database itself in a separate index attribute file,
1274 named like the index file with '.attr' appended to the name.
1277 *) Generate muti valued AVAs using '+' notation in config files for
1281 *) Support for nameConstraints certificate extension.
1284 *) Support for policyConstraints certificate extension.
1287 *) Support for policyMappings certificate extension.
1290 *) Make sure the default DSA_METHOD implementation only uses its
1291 dsa_mod_exp() and/or bn_mod_exp() handlers if they are non-NULL,
1292 and change its own handlers to be NULL so as to remove unnecessary
1293 indirection. This lets alternative implementations fallback to the
1294 default implementation more easily.
1297 *) Support for directoryName in GeneralName related extensions
1301 *) Make it possible to link applications using Makefile.shared.
1302 Make that possible even when linking against static libraries!
1305 *) Support for single pass processing for S/MIME signing. This now
1306 means that S/MIME signing can be done from a pipe, in addition
1307 cleartext signing (multipart/signed type) is effectively streaming
1308 and the signed data does not need to be all held in memory.
1310 This is done with a new flag PKCS7_STREAM. When this flag is set
1311 PKCS7_sign() only initializes the PKCS7 structure and the actual signing
1312 is done after the data is output (and digests calculated) in
1313 SMIME_write_PKCS7().
1316 *) Add full support for -rpath/-R, both in shared libraries and
1317 applications, at least on the platforms where it's known how
1321 *) In crypto/ec/ec_mult.c, implement fast point multiplication with
1322 precomputation, based on wNAF splitting: EC_GROUP_precompute_mult()
1323 will now compute a table of multiples of the generator that
1324 makes subsequent invocations of EC_POINTs_mul() or EC_POINT_mul()
1325 faster (notably in the case of a single point multiplication,
1326 scalar * generator).
1327 [Nils Larsch, Bodo Moeller]
1329 *) IPv6 support for certificate extensions. The various extensions
1330 which use the IP:a.b.c.d can now take IPv6 addresses using the
1331 formats of RFC1884 2.2 . IPv6 addresses are now also displayed
1335 *) Added an ENGINE that implements RSA by performing private key
1336 exponentiations with the GMP library. The conversions to and from
1337 GMP's mpz_t format aren't optimised nor are any montgomery forms
1338 cached, and on x86 it appears OpenSSL's own performance has caught up.
1339 However there are likely to be other architectures where GMP could
1340 provide a boost. This ENGINE is not built in by default, but it can be
1341 specified at Configure time and should be accompanied by the necessary
1342 linker additions, eg;
1343 ./config -DOPENSSL_USE_GMP -lgmp
1346 *) "openssl engine" will not display ENGINE/DSO load failure errors when
1347 testing availability of engines with "-t" - the old behaviour is
1348 produced by increasing the feature's verbosity with "-tt".
1351 *) ECDSA routines: under certain error conditions uninitialized BN objects
1352 could be freed. Solution: make sure initialization is performed early
1353 enough. (Reported and fix supplied by Nils Larsch <nla@trustcenter.de>
1357 *) Key-generation can now be implemented in RSA_METHOD, DSA_METHOD
1358 and DH_METHOD (eg. by ENGINE implementations) to override the normal
1359 software implementations. For DSA and DH, parameter generation can
1360 also be overriden by providing the appropriate method callbacks.
1363 *) Change the "progress" mechanism used in key-generation and
1364 primality testing to functions that take a new BN_GENCB pointer in
1365 place of callback/argument pairs. The new API functions have "_ex"
1366 postfixes and the older functions are reimplemented as wrappers for
1367 the new ones. The OPENSSL_NO_DEPRECATED symbol can be used to hide
1368 declarations of the old functions to help (graceful) attempts to
1369 migrate to the new functions. Also, the new key-generation API
1370 functions operate on a caller-supplied key-structure and return
1371 success/failure rather than returning a key or NULL - this is to
1372 help make "keygen" another member function of RSA_METHOD etc.
1374 Example for using the new callback interface:
1376 int (*my_callback)(int a, int b, BN_GENCB *cb) = ...;
1380 BN_GENCB_set(&my_cb, my_callback, my_arg);
1382 return BN_is_prime_ex(some_bignum, BN_prime_checks, NULL, &cb);
1383 /* For the meaning of a, b in calls to my_callback(), see the
1384 * documentation of the function that calls the callback.
1385 * cb will point to my_cb; my_arg can be retrieved as cb->arg.
1386 * my_callback should return 1 if it wants BN_is_prime_ex()
1387 * to continue, or 0 to stop.
1392 *) Change the ZLIB compression method to be stateful, and make it
1393 available to TLS with the number defined in
1394 draft-ietf-tls-compression-04.txt.
1397 *) Add the ASN.1 structures and functions for CertificatePair, which
1398 is defined as follows (according to X.509_4thEditionDraftV6.pdf):
1400 CertificatePair ::= SEQUENCE {
1401 forward [0] Certificate OPTIONAL,
1402 reverse [1] Certificate OPTIONAL,
1403 -- at least one of the pair shall be present -- }
1405 Also implement the PEM functions to read and write certificate
1406 pairs, and defined the PEM tag as "CERTIFICATE PAIR".
1408 This needed to be defined, mostly for the sake of the LDAP
1409 attribute crossCertificatePair, but may prove useful elsewhere as
1413 *) Make it possible to inhibit symlinking of shared libraries in
1414 Makefile.shared, for Cygwin's sake.
1417 *) Extend the BIGNUM API by creating a function
1418 void BN_set_negative(BIGNUM *a, int neg);
1419 and a macro that behave like
1420 int BN_is_negative(const BIGNUM *a);
1422 to avoid the need to access 'a->neg' directly in applications.
1425 *) Implement fast modular reduction for pseudo-Mersenne primes
1426 used in NIST curves (crypto/bn/bn_nist.c, crypto/ec/ecp_nist.c).
1427 EC_GROUP_new_curve_GFp() will now automatically use this
1429 [Nils Larsch <nla@trustcenter.de>]
1431 *) Add new lock type (CRYPTO_LOCK_BN).
1434 *) Change the ENGINE framework to automatically load engines
1435 dynamically from specific directories unless they could be
1436 found to already be built in or loaded. Move all the
1437 current engines except for the cryptodev one to a new
1439 The engines in engines/ are built as shared libraries if
1440 the "shared" options was given to ./Configure or ./config.
1441 Otherwise, they are inserted in libcrypto.a.
1442 /usr/local/ssl/engines is the default directory for dynamic
1443 engines, but that can be overriden at configure time through
1444 the usual use of --prefix and/or --openssldir, and at run
1445 time with the environment variable OPENSSL_ENGINES.
1446 [Geoff Thorpe and Richard Levitte]
1448 *) Add Makefile.shared, a helper makefile to build shared
1449 libraries. Addapt Makefile.org.
1452 *) Add version info to Win32 DLLs.
1453 [Peter 'Luna' Runestig" <peter@runestig.com>]
1455 *) Add new 'medium level' PKCS#12 API. Certificates and keys
1456 can be added using this API to created arbitrary PKCS#12
1457 files while avoiding the low level API.
1459 New options to PKCS12_create(), key or cert can be NULL and
1460 will then be omitted from the output file. The encryption
1461 algorithm NIDs can be set to -1 for no encryption, the mac
1462 iteration count can be set to 0 to omit the mac.
1464 Enhance pkcs12 utility by making the -nokeys and -nocerts
1465 options work when creating a PKCS#12 file. New option -nomac
1466 to omit the mac, NONE can be set for an encryption algorithm.
1467 New code is modified to use the enhanced PKCS12_create()
1468 instead of the low level API.
1471 *) Extend ASN1 encoder to support indefinite length constructed
1472 encoding. This can output sequences tags and octet strings in
1473 this form. Modify pk7_asn1.c to support indefinite length
1474 encoding. This is experimental and needs additional code to
1475 be useful, such as an ASN1 bio and some enhanced streaming
1478 Extend template encode functionality so that tagging is passed
1479 down to the template encoder.
1482 *) Let 'openssl req' fail if an argument to '-newkey' is not
1483 recognized instead of using RSA as a default.
1486 *) Add support for ECC-based ciphersuites from draft-ietf-tls-ecc-01.txt.
1487 As these are not official, they are not included in "ALL";
1488 the "ECCdraft" ciphersuite group alias can be used to select them.
1489 [Vipul Gupta and Sumit Gupta (Sun Microsystems Laboratories)]
1491 *) Add ECDH engine support.
1492 [Nils Gura and Douglas Stebila (Sun Microsystems Laboratories)]
1494 *) Add ECDH in new directory crypto/ecdh/.
1495 [Douglas Stebila (Sun Microsystems Laboratories)]
1497 *) Let BN_rand_range() abort with an error after 100 iterations
1498 without success (which indicates a broken PRNG).
1501 *) Change BN_mod_sqrt() so that it verifies that the input value
1502 is really the square of the return value. (Previously,
1503 BN_mod_sqrt would show GIGO behaviour.)
1506 *) Add named elliptic curves over binary fields from X9.62, SECG,
1507 and WAP/WTLS; add OIDs that were still missing.
1509 [Sheueling Chang Shantz and Douglas Stebila
1510 (Sun Microsystems Laboratories)]
1512 *) Extend the EC library for elliptic curves over binary fields
1513 (new files ec2_smpl.c, ec2_smpt.c, ec2_mult.c in crypto/ec/).
1516 EC_GF2m_simple_method
1520 EC_GROUP_new_curve_GF2m
1521 EC_GROUP_set_curve_GF2m
1522 EC_GROUP_get_curve_GF2m
1523 EC_POINT_set_affine_coordinates_GF2m
1524 EC_POINT_get_affine_coordinates_GF2m
1525 EC_POINT_set_compressed_coordinates_GF2m
1527 Point compression for binary fields is disabled by default for
1528 patent reasons (compile with OPENSSL_EC_BIN_PT_COMP defined to
1531 As binary polynomials are represented as BIGNUMs, various members
1532 of the EC_GROUP and EC_POINT data structures can be shared
1533 between the implementations for prime fields and binary fields;
1534 the above ..._GF2m functions (except for EX_GROUP_new_curve_GF2m)
1535 are essentially identical to their ..._GFp counterparts.
1536 (For simplicity, the '..._GFp' prefix has been dropped from
1537 various internal method names.)
1539 An internal 'field_div' method (similar to 'field_mul' and
1540 'field_sqr') has been added; this is used only for binary fields.
1542 [Sheueling Chang Shantz and Douglas Stebila
1543 (Sun Microsystems Laboratories)]
1545 *) Optionally dispatch EC_POINT_mul(), EC_POINT_precompute_mult()
1546 through methods ('mul', 'precompute_mult').
1548 The generic implementations (now internally called 'ec_wNAF_mul'
1549 and 'ec_wNAF_precomputed_mult') remain the default if these
1550 methods are undefined.
1552 [Sheueling Chang Shantz and Douglas Stebila
1553 (Sun Microsystems Laboratories)]
1555 *) New function EC_GROUP_get_degree, which is defined through
1556 EC_METHOD. For curves over prime fields, this returns the bit
1557 length of the modulus.
1559 [Sheueling Chang Shantz and Douglas Stebila
1560 (Sun Microsystems Laboratories)]
1562 *) New functions EC_GROUP_dup, EC_POINT_dup.
1563 (These simply call ..._new and ..._copy).
1565 [Sheueling Chang Shantz and Douglas Stebila
1566 (Sun Microsystems Laboratories)]
1568 *) Add binary polynomial arithmetic software in crypto/bn/bn_gf2m.c.
1569 Polynomials are represented as BIGNUMs (where the sign bit is not
1570 used) in the following functions [macros]:
1573 BN_GF2m_sub [= BN_GF2m_add]
1574 BN_GF2m_mod [wrapper for BN_GF2m_mod_arr]
1575 BN_GF2m_mod_mul [wrapper for BN_GF2m_mod_mul_arr]
1576 BN_GF2m_mod_sqr [wrapper for BN_GF2m_mod_sqr_arr]
1578 BN_GF2m_mod_exp [wrapper for BN_GF2m_mod_exp_arr]
1579 BN_GF2m_mod_sqrt [wrapper for BN_GF2m_mod_sqrt_arr]
1580 BN_GF2m_mod_solve_quad [wrapper for BN_GF2m_mod_solve_quad_arr]
1581 BN_GF2m_cmp [= BN_ucmp]
1583 (Note that only the 'mod' functions are actually for fields GF(2^m).
1584 BN_GF2m_add() is misnomer, but this is for the sake of consistency.)
1586 For some functions, an the irreducible polynomial defining a
1587 field can be given as an 'unsigned int[]' with strictly
1588 decreasing elements giving the indices of those bits that are set;
1589 i.e., p[] represents the polynomial
1590 f(t) = t^p[0] + t^p[1] + ... + t^p[k]
1592 p[0] > p[1] > ... > p[k] = 0.
1593 This applies to the following functions:
1598 BN_GF2m_mod_inv_arr [wrapper for BN_GF2m_mod_inv]
1599 BN_GF2m_mod_div_arr [wrapper for BN_GF2m_mod_div]
1601 BN_GF2m_mod_sqrt_arr
1602 BN_GF2m_mod_solve_quad_arr
1606 Conversion can be performed by the following functions:
1611 bntest.c has additional tests for binary polynomial arithmetic.
1613 Two implementations for BN_GF2m_mod_div() are available.
1614 The default algorithm simply uses BN_GF2m_mod_inv() and
1615 BN_GF2m_mod_mul(). The alternative algorithm is compiled in only
1616 if OPENSSL_SUN_GF2M_DIV is defined (patent pending; read the
1617 copyright notice in crypto/bn/bn_gf2m.c before enabling it).
1619 [Sheueling Chang Shantz and Douglas Stebila
1620 (Sun Microsystems Laboratories)]
1622 *) Add new error code 'ERR_R_DISABLED' that can be used when some
1623 functionality is disabled at compile-time.
1624 [Douglas Stebila <douglas.stebila@sun.com>]
1626 *) Change default behaviour of 'openssl asn1parse' so that more
1627 information is visible when viewing, e.g., a certificate:
1629 Modify asn1_parse2 (crypto/asn1/asn1_par.c) so that in non-'dump'
1630 mode the content of non-printable OCTET STRINGs is output in a
1631 style similar to INTEGERs, but with '[HEX DUMP]' prepended to
1632 avoid the appearance of a printable string.
1633 [Nils Larsch <nla@trustcenter.de>]
1635 *) Add 'asn1_flag' and 'asn1_form' member to EC_GROUP with access
1637 EC_GROUP_set_asn1_flag()
1638 EC_GROUP_get_asn1_flag()
1639 EC_GROUP_set_point_conversion_form()
1640 EC_GROUP_get_point_conversion_form()
1641 These control ASN1 encoding details:
1642 - Curves (i.e., groups) are encoded explicitly unless asn1_flag
1643 has been set to OPENSSL_EC_NAMED_CURVE.
1644 - Points are encoded in uncompressed form by default; options for
1645 asn1_for are as for point2oct, namely
1646 POINT_CONVERSION_COMPRESSED
1647 POINT_CONVERSION_UNCOMPRESSED
1648 POINT_CONVERSION_HYBRID
1650 Also add 'seed' and 'seed_len' members to EC_GROUP with access
1653 EC_GROUP_get0_seed()
1654 EC_GROUP_get_seed_len()
1655 This is used only for ASN1 purposes (so far).
1656 [Nils Larsch <nla@trustcenter.de>]
1658 *) Add 'field_type' member to EC_METHOD, which holds the NID
1659 of the appropriate field type OID. The new function
1660 EC_METHOD_get_field_type() returns this value.
1661 [Nils Larsch <nla@trustcenter.de>]
1666 EC_POINT_point2hex()
1667 EC_POINT_hex2point()
1668 providing useful interfaces to EC_POINT_point2oct() and
1669 EC_POINT_oct2point().
1670 [Nils Larsch <nla@trustcenter.de>]
1672 *) Change internals of the EC library so that the functions
1673 EC_GROUP_set_generator()
1674 EC_GROUP_get_generator()
1675 EC_GROUP_get_order()
1676 EC_GROUP_get_cofactor()
1677 are implemented directly in crypto/ec/ec_lib.c and not dispatched
1678 to methods, which would lead to unnecessary code duplication when
1679 adding different types of curves.
1680 [Nils Larsch <nla@trustcenter.de> with input by Bodo Moeller]
1682 *) Implement compute_wNAF (crypto/ec/ec_mult.c) without BIGNUM
1683 arithmetic, and such that modified wNAFs are generated
1684 (which avoid length expansion in many cases).
1687 *) Add a function EC_GROUP_check_discriminant() (defined via
1688 EC_METHOD) that verifies that the curve discriminant is non-zero.
1690 Add a function EC_GROUP_check() that makes some sanity tests
1691 on a EC_GROUP, its generator and order. This includes
1692 EC_GROUP_check_discriminant().
1693 [Nils Larsch <nla@trustcenter.de>]
1695 *) Add ECDSA in new directory crypto/ecdsa/.
1697 Add applications 'openssl ecparam' and 'openssl ecdsa'
1698 (these are based on 'openssl dsaparam' and 'openssl dsa').
1700 ECDSA support is also included in various other files across the
1701 library. Most notably,
1702 - 'openssl req' now has a '-newkey ecdsa:file' option;
1703 - EVP_PKCS82PKEY (crypto/evp/evp_pkey.c) now can handle ECDSA;
1704 - X509_PUBKEY_get (crypto/asn1/x_pubkey.c) and
1705 d2i_PublicKey (crypto/asn1/d2i_pu.c) have been modified to make
1706 them suitable for ECDSA where domain parameters must be
1707 extracted before the specific public key;
1708 - ECDSA engine support has been added.
1709 [Nils Larsch <nla@trustcenter.de>]
1711 *) Include some named elliptic curves, and add OIDs from X9.62,
1712 SECG, and WAP/WTLS. Each curve can be obtained from the new
1714 EC_GROUP_new_by_curve_name(),
1715 and the list of available named curves can be obtained with
1716 EC_get_builtin_curves().
1717 Also add a 'curve_name' member to EC_GROUP objects, which can be
1719 EC_GROUP_set_curve_name()
1720 EC_GROUP_get_curve_name()
1721 [Nils Larsch <larsch@trustcenter.de, Bodo Moeller]
1723 *) Remove a few calls to bn_wexpand() in BN_sqr() (the one in there
1724 was actually never needed) and in BN_mul(). The removal in BN_mul()
1725 required a small change in bn_mul_part_recursive() and the addition
1726 of the functions bn_cmp_part_words(), bn_sub_part_words() and
1727 bn_add_part_words(), which do the same thing as bn_cmp_words(),
1728 bn_sub_words() and bn_add_words() except they take arrays with
1732 Changes between 0.9.7m and 0.9.7n [xx XXX xxxx]
1734 *) In the SSL/TLS server implementation, be strict about session ID
1735 context matching (which matters if an application uses a single
1736 external cache for different purposes). Previously,
1737 out-of-context reuse was forbidden only if SSL_VERIFY_PEER was
1738 set. This did ensure strict client verification, but meant that,
1739 with applications using a single external cache for quite
1740 different requirements, clients could circumvent ciphersuite
1741 restrictions for a given session ID context by starting a session
1742 in a different context.
1745 Changes between 0.9.7l and 0.9.7m [23 Feb 2007]
1747 *) Cleanse PEM buffers before freeing them since they may contain
1749 [Benjamin Bennett <ben@psc.edu>]
1751 *) Include "!eNULL" in SSL_DEFAULT_CIPHER_LIST to make sure that
1752 a ciphersuite string such as "DEFAULT:RSA" cannot enable
1753 authentication-only ciphersuites.
1756 *) Since AES128 and AES256 share a single mask bit in the logic of
1757 ssl/ssl_ciph.c, the code for masking out disabled ciphers needs a
1758 kludge to work properly if AES128 is available and AES256 isn't.
1761 *) Expand security boundary to match 1.1.1 module.
1764 *) Remove redundant features: hash file source, editing of test vectors
1765 modify fipsld to use external fips_premain.c signature.
1768 *) New perl script mkfipsscr.pl to create shell scripts or batch files to
1769 run algorithm test programs.
1772 *) Make algorithm test programs more tolerant of whitespace.
1775 *) Have SSL/TLS server implementation tolerate "mismatched" record
1776 protocol version while receiving ClientHello even if the
1777 ClientHello is fragmented. (The server can't insist on the
1778 particular protocol version it has chosen before the ServerHello
1779 message has informed the client about his choice.)
1782 *) Load error codes if they are not already present instead of using a
1783 static variable. This allows them to be cleanly unloaded and reloaded.
1786 Changes between 0.9.7k and 0.9.7l [28 Sep 2006]
1788 *) Introduce limits to prevent malicious keys being able to
1789 cause a denial of service. (CVE-2006-2940)
1790 [Steve Henson, Bodo Moeller]
1792 *) Fix ASN.1 parsing of certain invalid structures that can result
1793 in a denial of service. (CVE-2006-2937) [Steve Henson]
1795 *) Fix buffer overflow in SSL_get_shared_ciphers() function.
1796 (CVE-2006-3738) [Tavis Ormandy and Will Drewry, Google Security Team]
1798 *) Fix SSL client code which could crash if connecting to a
1799 malicious SSLv2 server. (CVE-2006-4343)
1800 [Tavis Ormandy and Will Drewry, Google Security Team]
1802 *) Change ciphersuite string processing so that an explicit
1803 ciphersuite selects this one ciphersuite (so that "AES256-SHA"
1804 will no longer include "AES128-SHA"), and any other similar
1805 ciphersuite (same bitmap) from *other* protocol versions (so that
1806 "RC4-MD5" will still include both the SSL 2.0 ciphersuite and the
1807 SSL 3.0/TLS 1.0 ciphersuite). This is a backport combining
1808 changes from 0.9.8b and 0.9.8d.
1811 Changes between 0.9.7j and 0.9.7k [05 Sep 2006]
1813 *) Avoid PKCS #1 v1.5 signature attack discovered by Daniel Bleichenbacher
1814 (CVE-2006-4339) [Ben Laurie and Google Security Team]
1816 *) Change the Unix randomness entropy gathering to use poll() when
1817 possible instead of select(), since the latter has some
1818 undesirable limitations.
1819 [Darryl Miles via Richard Levitte and Bodo Moeller]
1821 *) Disable rogue ciphersuites:
1823 - SSLv2 0x08 0x00 0x80 ("RC4-64-MD5")
1824 - SSLv3/TLSv1 0x00 0x61 ("EXP1024-RC2-CBC-MD5")
1825 - SSLv3/TLSv1 0x00 0x60 ("EXP1024-RC4-MD5")
1827 The latter two were purportedly from
1828 draft-ietf-tls-56-bit-ciphersuites-0[01].txt, but do not really
1831 Also deactive the remaining ciphersuites from
1832 draft-ietf-tls-56-bit-ciphersuites-01.txt. These are just as
1833 unofficial, and the ID has long expired.
1836 *) Fix RSA blinding Heisenbug (problems sometimes occured on
1837 dual-core machines) and other potential thread-safety issues.
1840 Changes between 0.9.7i and 0.9.7j [04 May 2006]
1842 *) Adapt fipsld and the build system to link against the validated FIPS
1843 module in FIPS mode.
1846 *) Fixes for VC++ 2005 build under Windows.
1849 *) Add new Windows build target VC-32-GMAKE for VC++. This uses GNU make
1850 from a Windows bash shell such as MSYS. It is autodetected from the
1851 "config" script when run from a VC++ environment. Modify standard VC++
1852 build to use fipscanister.o from the GNU make build.
1855 Changes between 0.9.7h and 0.9.7i [14 Oct 2005]
1857 *) Wrapped the definition of EVP_MAX_MD_SIZE in a #ifdef OPENSSL_FIPS.
1858 The value now differs depending on if you build for FIPS or not.
1859 BEWARE! A program linked with a shared FIPSed libcrypto can't be
1860 safely run with a non-FIPSed libcrypto, as it may crash because of
1861 the difference induced by this change.
1864 Changes between 0.9.7g and 0.9.7h [11 Oct 2005]
1866 *) Remove the functionality of SSL_OP_MSIE_SSLV2_RSA_PADDING
1867 (part of SSL_OP_ALL). This option used to disable the
1868 countermeasure against man-in-the-middle protocol-version
1869 rollback in the SSL 2.0 server implementation, which is a bad
1870 idea. (CVE-2005-2969)
1872 [Bodo Moeller; problem pointed out by Yutaka Oiwa (Research Center
1873 for Information Security, National Institute of Advanced Industrial
1874 Science and Technology [AIST], Japan)]
1876 *) Minimal support for X9.31 signatures and PSS padding modes. This is
1877 mainly for FIPS compliance and not fully integrated at this stage.
1880 *) For DSA signing, unless DSA_FLAG_NO_EXP_CONSTTIME is set, perform
1881 the exponentiation using a fixed-length exponent. (Otherwise,
1882 the information leaked through timing could expose the secret key
1883 after many signatures; cf. Bleichenbacher's attack on DSA with
1887 *) Make a new fixed-window mod_exp implementation the default for
1888 RSA, DSA, and DH private-key operations so that the sequence of
1889 squares and multiplies and the memory access pattern are
1890 independent of the particular secret key. This will mitigate
1891 cache-timing and potential related attacks.
1893 BN_mod_exp_mont_consttime() is the new exponentiation implementation,
1894 and this is automatically used by BN_mod_exp_mont() if the new flag
1895 BN_FLG_EXP_CONSTTIME is set for the exponent. RSA, DSA, and DH
1896 will use this BN flag for private exponents unless the flag
1897 RSA_FLAG_NO_EXP_CONSTTIME, DSA_FLAG_NO_EXP_CONSTTIME, or
1898 DH_FLAG_NO_EXP_CONSTTIME, respectively, is set.
1900 [Matthew D Wood (Intel Corp), with some changes by Bodo Moeller]
1902 *) Change the client implementation for SSLv23_method() and
1903 SSLv23_client_method() so that is uses the SSL 3.0/TLS 1.0
1904 Client Hello message format if the SSL_OP_NO_SSLv2 option is set.
1905 (Previously, the SSL 2.0 backwards compatible Client Hello
1906 message format would be used even with SSL_OP_NO_SSLv2.)
1909 *) Add support for smime-type MIME parameter in S/MIME messages which some
1913 *) New function BN_MONT_CTX_set_locked() to set montgomery parameters in
1914 a threadsafe manner. Modify rsa code to use new function and add calls
1915 to dsa and dh code (which had race conditions before).
1918 *) Include the fixed error library code in the C error file definitions
1919 instead of fixing them up at runtime. This keeps the error code
1920 structures constant.
1923 Changes between 0.9.7f and 0.9.7g [11 Apr 2005]
1925 [NB: OpenSSL 0.9.7h and later 0.9.7 patch levels were released after
1928 *) Fixes for newer kerberos headers. NB: the casts are needed because
1929 the 'length' field is signed on one version and unsigned on another
1930 with no (?) obvious way to tell the difference, without these VC++
1931 complains. Also the "definition" of FAR (blank) is no longer included
1932 nor is the error ENOMEM. KRB5_PRIVATE has to be set to 1 to pick up
1933 some needed definitions.
1936 *) Undo Cygwin change.
1939 *) Added support for proxy certificates according to RFC 3820.
1940 Because they may be a security thread to unaware applications,
1941 they must be explicitely allowed in run-time. See
1942 docs/HOWTO/proxy_certificates.txt for further information.
1945 Changes between 0.9.7e and 0.9.7f [22 Mar 2005]
1947 *) Use (SSL_RANDOM_VALUE - 4) bytes of pseudo random data when generating
1948 server and client random values. Previously
1949 (SSL_RANDOM_VALUE - sizeof(time_t)) would be used which would result in
1950 less random data when sizeof(time_t) > 4 (some 64 bit platforms).
1952 This change has negligible security impact because:
1954 1. Server and client random values still have 24 bytes of pseudo random
1957 2. Server and client random values are sent in the clear in the initial
1960 3. The master secret is derived using the premaster secret (48 bytes in
1961 size for static RSA ciphersuites) as well as client server and random
1964 The OpenSSL team would like to thank the UK NISCC for bringing this issue
1967 [Stephen Henson, reported by UK NISCC]
1969 *) Use Windows randomness collection on Cygwin.
1972 *) Fix hang in EGD/PRNGD query when communication socket is closed
1973 prematurely by EGD/PRNGD.
1974 [Darren Tucker <dtucker@zip.com.au> via Lutz Jänicke, resolves #1014]
1976 *) Prompt for pass phrases when appropriate for PKCS12 input format.
1979 *) Back-port of selected performance improvements from development
1980 branch, as well as improved support for PowerPC platforms.
1983 *) Add lots of checks for memory allocation failure, error codes to indicate
1984 failure and freeing up memory if a failure occurs.
1985 [Nauticus Networks SSL Team <openssl@nauticusnet.com>, Steve Henson]
1987 *) Add new -passin argument to dgst.
1990 *) Perform some character comparisons of different types in X509_NAME_cmp:
1991 this is needed for some certificates that reencode DNs into UTF8Strings
1992 (in violation of RFC3280) and can't or wont issue name rollover
1996 *) Make an explicit check during certificate validation to see that
1997 the CA setting in each certificate on the chain is correct. As a
1998 side effect always do the following basic checks on extensions,
1999 not just when there's an associated purpose to the check:
2001 - if there is an unhandled critical extension (unless the user
2002 has chosen to ignore this fault)
2003 - if the path length has been exceeded (if one is set at all)
2004 - that certain extensions fit the associated purpose (if one has
2008 Changes between 0.9.7d and 0.9.7e [25 Oct 2004]
2010 *) Avoid a race condition when CRLs are checked in a multi threaded
2011 environment. This would happen due to the reordering of the revoked
2012 entries during signature checking and serial number lookup. Now the
2013 encoding is cached and the serial number sort performed under a lock.
2014 Add new STACK function sk_is_sorted().
2017 *) Add Delta CRL to the extension code.
2020 *) Various fixes to s3_pkt.c so alerts are sent properly.
2021 [David Holmes <d.holmes@f5.com>]
2023 *) Reduce the chances of duplicate issuer name and serial numbers (in
2024 violation of RFC3280) using the OpenSSL certificate creation utilities.
2025 This is done by creating a random 64 bit value for the initial serial
2026 number when a serial number file is created or when a self signed
2027 certificate is created using 'openssl req -x509'. The initial serial
2028 number file is created using 'openssl x509 -next_serial' in CA.pl
2029 rather than being initialized to 1.
2032 Changes between 0.9.7c and 0.9.7d [17 Mar 2004]
2034 *) Fix null-pointer assignment in do_change_cipher_spec() revealed
2035 by using the Codenomicon TLS Test Tool (CVE-2004-0079)
2036 [Joe Orton, Steve Henson]
2038 *) Fix flaw in SSL/TLS handshaking when using Kerberos ciphersuites
2040 [Joe Orton, Steve Henson]
2042 *) Make it possible to have multiple active certificates with the same
2043 subject in the CA index file. This is done only if the keyword
2044 'unique_subject' is set to 'no' in the main CA section (default
2045 if 'CA_default') of the configuration file. The value is saved
2046 with the database itself in a separate index attribute file,
2047 named like the index file with '.attr' appended to the name.
2050 *) X509 verify fixes. Disable broken certificate workarounds when
2051 X509_V_FLAGS_X509_STRICT is set. Check CRL issuer has cRLSign set if
2052 keyUsage extension present. Don't accept CRLs with unhandled critical
2053 extensions: since verify currently doesn't process CRL extensions this
2054 rejects a CRL with *any* critical extensions. Add new verify error codes
2058 *) When creating an OCSP nonce use an OCTET STRING inside the extnValue.
2059 A clarification of RFC2560 will require the use of OCTET STRINGs and
2060 some implementations cannot handle the current raw format. Since OpenSSL
2061 copies and compares OCSP nonces as opaque blobs without any attempt at
2062 parsing them this should not create any compatibility issues.
2065 *) New md flag EVP_MD_CTX_FLAG_REUSE this allows md_data to be reused when
2066 calling EVP_MD_CTX_copy_ex() to avoid calling OPENSSL_malloc(). Without
2067 this HMAC (and other) operations are several times slower than OpenSSL
2071 *) Print out GeneralizedTime and UTCTime in ASN1_STRING_print_ex().
2072 [Peter Sylvester <Peter.Sylvester@EdelWeb.fr>]
2074 *) Use the correct content when signing type "other".
2077 Changes between 0.9.7b and 0.9.7c [30 Sep 2003]
2079 *) Fix various bugs revealed by running the NISCC test suite:
2081 Stop out of bounds reads in the ASN1 code when presented with
2082 invalid tags (CVE-2003-0543 and CVE-2003-0544).
2084 Free up ASN1_TYPE correctly if ANY type is invalid (CVE-2003-0545).
2086 If verify callback ignores invalid public key errors don't try to check
2087 certificate signature with the NULL public key.
2091 *) New -ignore_err option in ocsp application to stop the server
2092 exiting on the first error in a request.
2095 *) In ssl3_accept() (ssl/s3_srvr.c) only accept a client certificate
2096 if the server requested one: as stated in TLS 1.0 and SSL 3.0
2100 *) In ssl3_get_client_hello() (ssl/s3_srvr.c), tolerate additional
2101 extra data after the compression methods not only for TLS 1.0
2102 but also for SSL 3.0 (as required by the specification).
2103 [Bodo Moeller; problem pointed out by Matthias Loepfe]
2105 *) Change X509_certificate_type() to mark the key as exported/exportable
2106 when it's 512 *bits* long, not 512 bytes.
2109 *) Change AES_cbc_encrypt() so it outputs exact multiple of
2110 blocks during encryption.
2113 *) Various fixes to base64 BIO and non blocking I/O. On write
2114 flushes were not handled properly if the BIO retried. On read
2115 data was not being buffered properly and had various logic bugs.
2116 This also affects blocking I/O when the data being decoded is a
2120 *) Various S/MIME bugfixes and compatibility changes:
2121 output correct application/pkcs7 MIME type if
2122 PKCS7_NOOLDMIMETYPE is set. Tolerate some broken signatures.
2123 Output CR+LF for EOL if PKCS7_CRLFEOL is set (this makes opening
2124 of files as .eml work). Correctly handle very long lines in MIME
2128 Changes between 0.9.7a and 0.9.7b [10 Apr 2003]
2130 *) Countermeasure against the Klima-Pokorny-Rosa extension of
2131 Bleichbacher's attack on PKCS #1 v1.5 padding: treat
2132 a protocol version number mismatch like a decryption error
2133 in ssl3_get_client_key_exchange (ssl/s3_srvr.c).
2136 *) Turn on RSA blinding by default in the default implementation
2137 to avoid a timing attack. Applications that don't want it can call
2138 RSA_blinding_off() or use the new flag RSA_FLAG_NO_BLINDING.
2139 They would be ill-advised to do so in most cases.
2140 [Ben Laurie, Steve Henson, Geoff Thorpe, Bodo Moeller]
2142 *) Change RSA blinding code so that it works when the PRNG is not
2143 seeded (in this case, the secret RSA exponent is abused as
2144 an unpredictable seed -- if it is not unpredictable, there
2145 is no point in blinding anyway). Make RSA blinding thread-safe
2146 by remembering the creator's thread ID in rsa->blinding and
2147 having all other threads use local one-time blinding factors
2148 (this requires more computation than sharing rsa->blinding, but
2149 avoids excessive locking; and if an RSA object is not shared
2150 between threads, blinding will still be very fast).
2153 *) Fixed a typo bug that would cause ENGINE_set_default() to set an
2154 ENGINE as defaults for all supported algorithms irrespective of
2155 the 'flags' parameter. 'flags' is now honoured, so applications
2156 should make sure they are passing it correctly.
2159 *) Target "mingw" now allows native Windows code to be generated in
2160 the Cygwin environment as well as with the MinGW compiler.
2163 Changes between 0.9.7 and 0.9.7a [19 Feb 2003]
2165 *) In ssl3_get_record (ssl/s3_pkt.c), minimize information leaked
2166 via timing by performing a MAC computation even if incorrrect
2167 block cipher padding has been found. This is a countermeasure
2168 against active attacks where the attacker has to distinguish
2169 between bad padding and a MAC verification error. (CVE-2003-0078)
2171 [Bodo Moeller; problem pointed out by Brice Canvel (EPFL),
2172 Alain Hiltgen (UBS), Serge Vaudenay (EPFL), and
2173 Martin Vuagnoux (EPFL, Ilion)]
2175 *) Make the no-err option work as intended. The intention with no-err
2176 is not to have the whole error stack handling routines removed from
2177 libcrypto, it's only intended to remove all the function name and
2178 reason texts, thereby removing some of the footprint that may not
2179 be interesting if those errors aren't displayed anyway.
2181 NOTE: it's still possible for any application or module to have it's
2182 own set of error texts inserted. The routines are there, just not
2183 used by default when no-err is given.
2186 *) Add support for FreeBSD on IA64.
2187 [dirk.meyer@dinoex.sub.org via Richard Levitte, resolves #454]
2189 *) Adjust DES_cbc_cksum() so it returns the same value as the MIT
2190 Kerberos function mit_des_cbc_cksum(). Before this change,
2191 the value returned by DES_cbc_cksum() was like the one from
2192 mit_des_cbc_cksum(), except the bytes were swapped.
2193 [Kevin Greaney <Kevin.Greaney@hp.com> and Richard Levitte]
2195 *) Allow an application to disable the automatic SSL chain building.
2196 Before this a rather primitive chain build was always performed in
2197 ssl3_output_cert_chain(): an application had no way to send the
2198 correct chain if the automatic operation produced an incorrect result.
2200 Now the chain builder is disabled if either:
2202 1. Extra certificates are added via SSL_CTX_add_extra_chain_cert().
2204 2. The mode flag SSL_MODE_NO_AUTO_CHAIN is set.
2206 The reasoning behind this is that an application would not want the
2207 auto chain building to take place if extra chain certificates are
2208 present and it might also want a means of sending no additional
2209 certificates (for example the chain has two certificates and the
2213 *) Add the possibility to build without the ENGINE framework.
2214 [Steven Reddie <smr@essemer.com.au> via Richard Levitte]
2216 *) Under Win32 gmtime() can return NULL: check return value in
2217 OPENSSL_gmtime(). Add error code for case where gmtime() fails.
2220 *) DSA routines: under certain error conditions uninitialized BN objects
2221 could be freed. Solution: make sure initialization is performed early
2222 enough. (Reported and fix supplied by Ivan D Nestlerode <nestler@MIT.EDU>,
2223 Nils Larsch <nla@trustcenter.de> via PR#459)
2226 *) Another fix for SSLv2 session ID handling: the session ID was incorrectly
2227 checked on reconnect on the client side, therefore session resumption
2228 could still fail with a "ssl session id is different" error. This
2229 behaviour is masked when SSL_OP_ALL is used due to
2230 SSL_OP_MICROSOFT_SESS_ID_BUG being set.
2231 Behaviour observed by Crispin Flowerday <crispin@flowerday.cx> as
2232 followup to PR #377.
2235 *) IA-32 assembler support enhancements: unified ELF targets, support
2236 for SCO/Caldera platforms, fix for Cygwin shared build.
2239 *) Add support for FreeBSD on sparc64. As a consequence, support for
2240 FreeBSD on non-x86 processors is separate from x86 processors on
2241 the config script, much like the NetBSD support.
2242 [Richard Levitte & Kris Kennaway <kris@obsecurity.org>]
2244 Changes between 0.9.6h and 0.9.7 [31 Dec 2002]
2246 [NB: OpenSSL 0.9.6i and later 0.9.6 patch levels were released after
2249 *) Fix session ID handling in SSLv2 client code: the SERVER FINISHED
2250 code (06) was taken as the first octet of the session ID and the last
2251 octet was ignored consequently. As a result SSLv2 client side session
2252 caching could not have worked due to the session ID mismatch between
2254 Behaviour observed by Crispin Flowerday <crispin@flowerday.cx> as
2258 *) Change the declaration of needed Kerberos libraries to use EX_LIBS
2259 instead of the special (and badly supported) LIBKRB5. LIBKRB5 is
2263 *) The hw_ncipher.c engine requires dynamic locks. Unfortunately, it
2264 seems that in spite of existing for more than a year, many application
2265 author have done nothing to provide the necessary callbacks, which
2266 means that this particular engine will not work properly anywhere.
2267 This is a very unfortunate situation which forces us, in the name
2268 of usability, to give the hw_ncipher.c a static lock, which is part
2270 NOTE: This is for the 0.9.7 series ONLY. This hack will never
2271 appear in 0.9.8 or later. We EXPECT application authors to have
2272 dealt properly with this when 0.9.8 is released (unless we actually
2273 make such changes in the libcrypto locking code that changes will
2274 have to be made anyway).
2277 *) In asn1_d2i_read_bio() repeatedly call BIO_read() until all content
2278 octets have been read, EOF or an error occurs. Without this change
2279 some truncated ASN1 structures will not produce an error.
2282 *) Disable Heimdal support, since it hasn't been fully implemented.
2283 Still give the possibility to force the use of Heimdal, but with
2284 warnings and a request that patches get sent to openssl-dev.
2287 *) Add the VC-CE target, introduce the WINCE sysname, and add
2288 INSTALL.WCE and appropriate conditionals to make it build.
2289 [Steven Reddie <smr@essemer.com.au> via Richard Levitte]
2291 *) Change the DLL names for Cygwin to cygcrypto-x.y.z.dll and
2292 cygssl-x.y.z.dll, where x, y and z are the major, minor and
2293 edit numbers of the version.
2294 [Corinna Vinschen <vinschen@redhat.com> and Richard Levitte]
2296 *) Introduce safe string copy and catenation functions
2297 (BUF_strlcpy() and BUF_strlcat()).
2298 [Ben Laurie (CHATS) and Richard Levitte]
2300 *) Avoid using fixed-size buffers for one-line DNs.
2301 [Ben Laurie (CHATS)]
2303 *) Add BUF_MEM_grow_clean() to avoid information leakage when
2304 resizing buffers containing secrets, and use where appropriate.
2305 [Ben Laurie (CHATS)]
2307 *) Avoid using fixed size buffers for configuration file location.
2308 [Ben Laurie (CHATS)]
2310 *) Avoid filename truncation for various CA files.
2311 [Ben Laurie (CHATS)]
2313 *) Use sizeof in preference to magic numbers.
2314 [Ben Laurie (CHATS)]
2316 *) Avoid filename truncation in cert requests.
2317 [Ben Laurie (CHATS)]
2319 *) Add assertions to check for (supposedly impossible) buffer
2321 [Ben Laurie (CHATS)]
2323 *) Don't cache truncated DNS entries in the local cache (this could
2324 potentially lead to a spoofing attack).
2325 [Ben Laurie (CHATS)]
2327 *) Fix various buffers to be large enough for hex/decimal
2328 representations in a platform independent manner.
2329 [Ben Laurie (CHATS)]
2331 *) Add CRYPTO_realloc_clean() to avoid information leakage when
2332 resizing buffers containing secrets, and use where appropriate.
2333 [Ben Laurie (CHATS)]
2335 *) Add BIO_indent() to avoid much slightly worrying code to do
2337 [Ben Laurie (CHATS)]
2339 *) Convert sprintf()/BIO_puts() to BIO_printf().
2340 [Ben Laurie (CHATS)]
2342 *) buffer_gets() could terminate with the buffer only half
2344 [Ben Laurie (CHATS)]
2346 *) Add assertions to prevent user-supplied crypto functions from
2347 overflowing internal buffers by having large block sizes, etc.
2348 [Ben Laurie (CHATS)]
2350 *) New OPENSSL_assert() macro (similar to assert(), but enabled
2352 [Ben Laurie (CHATS)]
2354 *) Eliminate unused copy of key in RC4.
2355 [Ben Laurie (CHATS)]
2357 *) Eliminate unused and incorrectly sized buffers for IV in pem.h.
2358 [Ben Laurie (CHATS)]
2360 *) Fix off-by-one error in EGD path.
2361 [Ben Laurie (CHATS)]
2363 *) If RANDFILE path is too long, ignore instead of truncating.
2364 [Ben Laurie (CHATS)]
2366 *) Eliminate unused and incorrectly sized X.509 structure
2368 [Ben Laurie (CHATS)]
2370 *) Eliminate unused and dangerous function knumber().
2371 [Ben Laurie (CHATS)]
2373 *) Eliminate unused and dangerous structure, KSSL_ERR.
2374 [Ben Laurie (CHATS)]
2376 *) Protect against overlong session ID context length in an encoded
2377 session object. Since these are local, this does not appear to be
2379 [Ben Laurie (CHATS)]
2381 *) Change from security patch (see 0.9.6e below) that did not affect
2382 the 0.9.6 release series:
2384 Remote buffer overflow in SSL3 protocol - an attacker could
2385 supply an oversized master key in Kerberos-enabled versions.
2387 [Ben Laurie (CHATS)]
2389 *) Change the SSL kerb5 codes to match RFC 2712.
2392 *) Make -nameopt work fully for req and add -reqopt switch.
2393 [Michael Bell <michael.bell@rz.hu-berlin.de>, Steve Henson]
2395 *) The "block size" for block ciphers in CFB and OFB mode should be 1.
2396 [Steve Henson, reported by Yngve Nysaeter Pettersen <yngve@opera.com>]
2398 *) Make sure tests can be performed even if the corresponding algorithms
2399 have been removed entirely. This was also the last step to make
2400 OpenSSL compilable with DJGPP under all reasonable conditions.
2401 [Richard Levitte, Doug Kaufman <dkaufman@rahul.net>]
2403 *) Add cipher selection rules COMPLEMENTOFALL and COMPLEMENTOFDEFAULT
2404 to allow version independent disabling of normally unselected ciphers,
2405 which may be activated as a side-effect of selecting a single cipher.
2407 (E.g., cipher list string "RSA" enables ciphersuites that are left
2408 out of "ALL" because they do not provide symmetric encryption.
2409 "RSA:!COMPLEMEMENTOFALL" avoids these unsafe ciphersuites.)
2410 [Lutz Jaenicke, Bodo Moeller]
2412 *) Add appropriate support for separate platform-dependent build
2413 directories. The recommended way to make a platform-dependent
2414 build directory is the following (tested on Linux), maybe with
2417 # Place yourself outside of the OpenSSL source tree. In
2418 # this example, the environment variable OPENSSL_SOURCE
2419 # is assumed to contain the absolute OpenSSL source directory.
2420 mkdir -p objtree/"`uname -s`-`uname -r`-`uname -m`"
2421 cd objtree/"`uname -s`-`uname -r`-`uname -m`"
2422 (cd $OPENSSL_SOURCE; find . -type f) | while read F; do
2423 mkdir -p `dirname $F`
2424 ln -s $OPENSSL_SOURCE/$F $F
2427 To be absolutely sure not to disturb the source tree, a "make clean"
2428 is a good thing. If it isn't successfull, don't worry about it,
2429 it probably means the source directory is very clean.
2432 *) Make sure any ENGINE control commands make local copies of string
2433 pointers passed to them whenever necessary. Otherwise it is possible
2434 the caller may have overwritten (or deallocated) the original string
2435 data when a later ENGINE operation tries to use the stored values.
2436 [Götz Babin-Ebell <babinebell@trustcenter.de>]
2438 *) Improve diagnostics in file reading and command-line digests.
2439 [Ben Laurie aided and abetted by Solar Designer <solar@openwall.com>]
2441 *) Add AES modes CFB and OFB to the object database. Correct an
2442 error in AES-CFB decryption.
2445 *) Remove most calls to EVP_CIPHER_CTX_cleanup() in evp_enc.c, this
2446 allows existing EVP_CIPHER_CTX structures to be reused after
2447 calling EVP_*Final(). This behaviour is used by encryption
2448 BIOs and some applications. This has the side effect that
2449 applications must explicitly clean up cipher contexts with
2450 EVP_CIPHER_CTX_cleanup() or they will leak memory.
2453 *) Check the values of dna and dnb in bn_mul_recursive before calling
2454 bn_mul_comba (a non zero value means the a or b arrays do not contain
2455 n2 elements) and fallback to bn_mul_normal if either is not zero.
2458 *) Fix escaping of non-ASCII characters when using the -subj option
2459 of the "openssl req" command line tool. (Robert Joop <joop@fokus.gmd.de>)
2462 *) Make object definitions compliant to LDAP (RFC2256): SN is the short
2463 form for "surname", serialNumber has no short form.
2464 Use "mail" as the short name for "rfc822Mailbox" according to RFC2798;
2465 therefore remove "mail" short name for "internet 7".
2466 The OID for unique identifiers in X509 certificates is
2467 x500UniqueIdentifier, not uniqueIdentifier.
2468 Some more OID additions. (Michael Bell <michael.bell@rz.hu-berlin.de>)
2471 *) Add an "init" command to the ENGINE config module and auto initialize
2472 ENGINEs. Without any "init" command the ENGINE will be initialized
2473 after all ctrl commands have been executed on it. If init=1 the
2474 ENGINE is initailized at that point (ctrls before that point are run
2475 on the uninitialized ENGINE and after on the initialized one). If
2476 init=0 then the ENGINE will not be iniatialized at all.
2479 *) Fix the 'app_verify_callback' interface so that the user-defined
2480 argument is actually passed to the callback: In the
2481 SSL_CTX_set_cert_verify_callback() prototype, the callback
2482 declaration has been changed from
2485 int (*cb)(X509_STORE_CTX *,void *);
2486 in ssl_verify_cert_chain (ssl/ssl_cert.c), the call
2487 i=s->ctx->app_verify_callback(&ctx)
2488 has been changed into
2489 i=s->ctx->app_verify_callback(&ctx, s->ctx->app_verify_arg).
2491 To update applications using SSL_CTX_set_cert_verify_callback(),
2492 a dummy argument can be added to their callback functions.
2493 [D. K. Smetters <smetters@parc.xerox.com>]
2495 *) Added the '4758cca' ENGINE to support IBM 4758 cards.
2496 [Maurice Gittens <maurice@gittens.nl>, touchups by Geoff Thorpe]
2498 *) Add and OPENSSL_LOAD_CONF define which will cause
2499 OpenSSL_add_all_algorithms() to load the openssl.cnf config file.
2500 This allows older applications to transparently support certain
2501 OpenSSL features: such as crypto acceleration and dynamic ENGINE loading.
2502 Two new functions OPENSSL_add_all_algorithms_noconf() which will never
2503 load the config file and OPENSSL_add_all_algorithms_conf() which will
2504 always load it have also been added.
2507 *) Add the OFB, CFB and CTR (all with 128 bit feedback) to AES.
2508 Adjust NIDs and EVP layer.
2509 [Stephen Sprunk <stephen@sprunk.org> and Richard Levitte]
2511 *) Config modules support in openssl utility.
2513 Most commands now load modules from the config file,
2514 though in a few (such as version) this isn't done
2515 because it couldn't be used for anything.
2517 In the case of ca and req the config file used is
2518 the same as the utility itself: that is the -config
2519 command line option can be used to specify an
2523 *) Move default behaviour from OPENSSL_config(). If appname is NULL
2524 use "openssl_conf" if filename is NULL use default openssl config file.
2527 *) Add an argument to OPENSSL_config() to allow the use of an alternative
2528 config section name. Add a new flag to tolerate a missing config file
2529 and move code to CONF_modules_load_file().
2532 *) Support for crypto accelerator cards from Accelerated Encryption
2533 Processing, www.aep.ie. (Use engine 'aep')
2534 The support was copied from 0.9.6c [engine] and adapted/corrected
2535 to work with the new engine framework.
2536 [AEP Inc. and Richard Levitte]
2538 *) Support for SureWare crypto accelerator cards from Baltimore
2539 Technologies. (Use engine 'sureware')
2540 The support was copied from 0.9.6c [engine] and adapted
2541 to work with the new engine framework.
2544 *) Have the CHIL engine fork-safe (as defined by nCipher) and actually
2545 make the newer ENGINE framework commands for the CHIL engine work.
2546 [Toomas Kiisk <vix@cyber.ee> and Richard Levitte]
2548 *) Make it possible to produce shared libraries on ReliantUNIX.
2549 [Robert Dahlem <Robert.Dahlem@ffm2.siemens.de> via Richard Levitte]
2551 *) Add the configuration target debug-linux-ppro.
2552 Make 'openssl rsa' use the general key loading routines
2553 implemented in apps.c, and make those routines able to
2554 handle the key format FORMAT_NETSCAPE and the variant
2556 [Toomas Kiisk <vix@cyber.ee> via Richard Levitte]
2558 *) Fix a crashbug and a logic bug in hwcrhk_load_pubkey().
2559 [Toomas Kiisk <vix@cyber.ee> via Richard Levitte]
2561 *) Add -keyform to rsautl, and document -engine.
2562 [Richard Levitte, inspired by Toomas Kiisk <vix@cyber.ee>]
2564 *) Change BIO_new_file (crypto/bio/bss_file.c) to use new
2565 BIO_R_NO_SUCH_FILE error code rather than the generic
2566 ERR_R_SYS_LIB error code if fopen() fails with ENOENT.
2569 *) Add new functions
2571 ERR_peek_last_error_line
2572 ERR_peek_last_error_line_data.
2573 These are similar to
2576 ERR_peek_error_line_data,
2577 but report on the latest error recorded rather than the first one
2578 still in the error queue.
2579 [Ben Laurie, Bodo Moeller]
2581 *) default_algorithms option in ENGINE config module. This allows things
2583 default_algorithms = ALL
2584 default_algorithms = RSA, DSA, RAND, CIPHERS, DIGESTS
2587 *) Prelminary ENGINE config module.
2590 *) New experimental application configuration code.
2593 *) Change the AES code to follow the same name structure as all other
2594 symmetric ciphers, and behave the same way. Move everything to
2595 the directory crypto/aes, thereby obsoleting crypto/rijndael.
2596 [Stephen Sprunk <stephen@sprunk.org> and Richard Levitte]
2598 *) SECURITY: remove unsafe setjmp/signal interaction from ui_openssl.c.
2599 [Ben Laurie and Theo de Raadt]
2601 *) Add option to output public keys in req command.
2602 [Massimiliano Pala madwolf@openca.org]
2604 *) Use wNAFs in EC_POINTs_mul() for improved efficiency
2605 (up to about 10% better than before for P-192 and P-224).
2608 *) New functions/macros
2610 SSL_CTX_set_msg_callback(ctx, cb)
2611 SSL_CTX_set_msg_callback_arg(ctx, arg)
2612 SSL_set_msg_callback(ssl, cb)
2613 SSL_set_msg_callback_arg(ssl, arg)
2615 to request calling a callback function
2617 void cb(int write_p, int version, int content_type,
2618 const void *buf, size_t len, SSL *ssl, void *arg)
2620 whenever a protocol message has been completely received
2621 (write_p == 0) or sent (write_p == 1). Here 'version' is the
2622 protocol version according to which the SSL library interprets
2623 the current protocol message (SSL2_VERSION, SSL3_VERSION, or
2624 TLS1_VERSION). 'content_type' is 0 in the case of SSL 2.0, or
2625 the content type as defined in the SSL 3.0/TLS 1.0 protocol
2626 specification (change_cipher_spec(20), alert(21), handshake(22)).
2627 'buf' and 'len' point to the actual message, 'ssl' to the
2628 SSL object, and 'arg' is the application-defined value set by
2629 SSL[_CTX]_set_msg_callback_arg().
2631 'openssl s_client' and 'openssl s_server' have new '-msg' options
2632 to enable a callback that displays all protocol messages.
2635 *) Change the shared library support so shared libraries are built as
2636 soon as the corresponding static library is finished, and thereby get
2637 openssl and the test programs linked against the shared library.
2638 This still only happens when the keyword "shard" has been given to
2639 the configuration scripts.
2641 NOTE: shared library support is still an experimental thing, and
2642 backward binary compatibility is still not guaranteed.
2643 ["Maciej W. Rozycki" <macro@ds2.pg.gda.pl> and Richard Levitte]
2645 *) Add support for Subject Information Access extension.
2646 [Peter Sylvester <Peter.Sylvester@EdelWeb.fr>]
2648 *) Make BUF_MEM_grow() behaviour more consistent: Initialise to zero
2649 additional bytes when new memory had to be allocated, not just
2650 when reusing an existing buffer.
2653 *) New command line and configuration option 'utf8' for the req command.
2654 This allows field values to be specified as UTF8 strings.
2657 *) Add -multi and -mr options to "openssl speed" - giving multiple parallel
2658 runs for the former and machine-readable output for the latter.
2661 *) Add '-noemailDN' option to 'openssl ca'. This prevents inclusion
2662 of the e-mail address in the DN (i.e., it will go into a certificate
2663 extension only). The new configuration file option 'email_in_dn = no'
2664 has the same effect.
2665 [Massimiliano Pala madwolf@openca.org]
2667 *) Change all functions with names starting with des_ to be starting
2668 with DES_ instead. Add wrappers that are compatible with libdes,
2669 but are named _ossl_old_des_*. Finally, add macros that map the
2670 des_* symbols to the corresponding _ossl_old_des_* if libdes
2671 compatibility is desired. If OpenSSL 0.9.6c compatibility is
2672 desired, the des_* symbols will be mapped to DES_*, with one
2675 Since we provide two compatibility mappings, the user needs to
2676 define the macro OPENSSL_DES_LIBDES_COMPATIBILITY if libdes
2677 compatibility is desired. The default (i.e., when that macro
2678 isn't defined) is OpenSSL 0.9.6c compatibility.
2680 There are also macros that enable and disable the support of old
2681 des functions altogether. Those are OPENSSL_ENABLE_OLD_DES_SUPPORT
2682 and OPENSSL_DISABLE_OLD_DES_SUPPORT. If none or both of those
2683 are defined, the default will apply: to support the old des routines.
2685 In either case, one must include openssl/des.h to get the correct
2686 definitions. Do not try to just include openssl/des_old.h, that
2689 NOTE: This is a major break of an old API into a new one. Software
2690 authors are encouraged to switch to the DES_ style functions. Some
2691 time in the future, des_old.h and the libdes compatibility functions
2692 will be disable (i.e. OPENSSL_DISABLE_OLD_DES_SUPPORT will be the
2693 default), and then completely removed.
2696 *) Test for certificates which contain unsupported critical extensions.
2697 If such a certificate is found during a verify operation it is
2698 rejected by default: this behaviour can be overridden by either
2699 handling the new error X509_V_ERR_UNHANDLED_CRITICAL_EXTENSION or
2700 by setting the verify flag X509_V_FLAG_IGNORE_CRITICAL. A new function
2701 X509_supported_extension() has also been added which returns 1 if a
2702 particular extension is supported.
2705 *) Modify the behaviour of EVP cipher functions in similar way to digests
2706 to retain compatibility with existing code.
2709 *) Modify the behaviour of EVP_DigestInit() and EVP_DigestFinal() to retain
2710 compatibility with existing code. In particular the 'ctx' parameter does
2711 not have to be to be initialized before the call to EVP_DigestInit() and
2712 it is tidied up after a call to EVP_DigestFinal(). New function
2713 EVP_DigestFinal_ex() which does not tidy up the ctx. Similarly function
2714 EVP_MD_CTX_copy() changed to not require the destination to be
2715 initialized valid and new function EVP_MD_CTX_copy_ex() added which
2716 requires the destination to be valid.
2718 Modify all the OpenSSL digest calls to use EVP_DigestInit_ex(),
2719 EVP_DigestFinal_ex() and EVP_MD_CTX_copy_ex().
2722 *) Change ssl3_get_message (ssl/s3_both.c) and the functions using it
2723 so that complete 'Handshake' protocol structures are kept in memory
2724 instead of overwriting 'msg_type' and 'length' with 'body' data.
2727 *) Add an implementation of SSL_add_dir_cert_subjects_to_stack for Win32.
2728 [Massimo Santin via Richard Levitte]
2730 *) Major restructuring to the underlying ENGINE code. This includes
2731 reduction of linker bloat, separation of pure "ENGINE" manipulation
2732 (initialisation, etc) from functionality dealing with implementations
2733 of specific crypto iterfaces. This change also introduces integrated
2734 support for symmetric ciphers and digest implementations - so ENGINEs
2735 can now accelerate these by providing EVP_CIPHER and EVP_MD
2736 implementations of their own. This is detailed in crypto/engine/README
2737 as it couldn't be adequately described here. However, there are a few
2738 API changes worth noting - some RSA, DSA, DH, and RAND functions that
2739 were changed in the original introduction of ENGINE code have now
2740 reverted back - the hooking from this code to ENGINE is now a good
2741 deal more passive and at run-time, operations deal directly with
2742 RSA_METHODs, DSA_METHODs (etc) as they did before, rather than
2743 dereferencing through an ENGINE pointer any more. Also, the ENGINE
2744 functions dealing with BN_MOD_EXP[_CRT] handlers have been removed -
2745 they were not being used by the framework as there is no concept of a
2746 BIGNUM_METHOD and they could not be generalised to the new
2747 'ENGINE_TABLE' mechanism that underlies the new code. Similarly,
2748 ENGINE_cpy() has been removed as it cannot be consistently defined in
2752 *) Change ASN1_GENERALIZEDTIME_check() to allow fractional seconds.
2755 *) Change mkdef.pl to sort symbols that get the same entry number,
2756 and make sure the automatically generated functions ERR_load_*
2757 become part of libeay.num as well.
2760 *) New function SSL_renegotiate_pending(). This returns true once
2761 renegotiation has been requested (either SSL_renegotiate() call
2762 or HelloRequest/ClientHello receveived from the peer) and becomes
2763 false once a handshake has been completed.
2764 (For servers, SSL_renegotiate() followed by SSL_do_handshake()
2765 sends a HelloRequest, but does not ensure that a handshake takes
2766 place. SSL_renegotiate_pending() is useful for checking if the
2767 client has followed the request.)
2770 *) New SSL option SSL_OP_NO_SESSION_RESUMPTION_ON_RENEGOTIATION.
2771 By default, clients may request session resumption even during
2772 renegotiation (if session ID contexts permit); with this option,
2773 session resumption is possible only in the first handshake.
2775 SSL_OP_ALL is now 0x00000FFFL instead of 0x000FFFFFL. This makes
2776 more bits available for options that should not be part of
2777 SSL_OP_ALL (such as SSL_OP_NO_SESSION_RESUMPTION_ON_RENEGOTIATION).
2780 *) Add some demos for certificate and certificate request creation.
2783 *) Make maximum certificate chain size accepted from the peer application
2784 settable (SSL*_get/set_max_cert_list()), as proposed by
2785 "Douglas E. Engert" <deengert@anl.gov>.
2788 *) Add support for shared libraries for Unixware-7
2789 (Boyd Lynn Gerber <gerberb@zenez.com>).
2792 *) Add a "destroy" handler to ENGINEs that allows structural cleanup to
2793 be done prior to destruction. Use this to unload error strings from
2794 ENGINEs that load their own error strings. NB: This adds two new API
2795 functions to "get" and "set" this destroy handler in an ENGINE.
2798 *) Alter all existing ENGINE implementations (except "openssl" and
2799 "openbsd") to dynamically instantiate their own error strings. This
2800 makes them more flexible to be built both as statically-linked ENGINEs
2801 and self-contained shared-libraries loadable via the "dynamic" ENGINE.
2802 Also, add stub code to each that makes building them as self-contained
2803 shared-libraries easier (see README.ENGINE).
2806 *) Add a "dynamic" ENGINE that provides a mechanism for binding ENGINE
2807 implementations into applications that are completely implemented in
2808 self-contained shared-libraries. The "dynamic" ENGINE exposes control
2809 commands that can be used to configure what shared-library to load and
2810 to control aspects of the way it is handled. Also, made an update to
2811 the README.ENGINE file that brings its information up-to-date and
2812 provides some information and instructions on the "dynamic" ENGINE
2813 (ie. how to use it, how to build "dynamic"-loadable ENGINEs, etc).
2816 *) Make it possible to unload ranges of ERR strings with a new
2817 "ERR_unload_strings" function.
2820 *) Add a copy() function to EVP_MD.
2823 *) Make EVP_MD routines take a context pointer instead of just the
2824 md_data void pointer.
2827 *) Add flags to EVP_MD and EVP_MD_CTX. EVP_MD_FLAG_ONESHOT indicates
2828 that the digest can only process a single chunk of data
2829 (typically because it is provided by a piece of
2830 hardware). EVP_MD_CTX_FLAG_ONESHOT indicates that the application
2831 is only going to provide a single chunk of data, and hence the
2832 framework needn't accumulate the data for oneshot drivers.
2835 *) As with "ERR", make it possible to replace the underlying "ex_data"
2836 functions. This change also alters the storage and management of global
2837 ex_data state - it's now all inside ex_data.c and all "class" code (eg.
2838 RSA, BIO, SSL_CTX, etc) no longer stores its own STACKS and per-class
2839 index counters. The API functions that use this state have been changed
2840 to take a "class_index" rather than pointers to the class's local STACK
2841 and counter, and there is now an API function to dynamically create new
2842 classes. This centralisation allows us to (a) plug a lot of the
2843 thread-safety problems that existed, and (b) makes it possible to clean
2844 up all allocated state using "CRYPTO_cleanup_all_ex_data()". W.r.t. (b)
2845 such data would previously have always leaked in application code and
2846 workarounds were in place to make the memory debugging turn a blind eye
2847 to it. Application code that doesn't use this new function will still
2848 leak as before, but their memory debugging output will announce it now
2849 rather than letting it slide.
2851 Besides the addition of CRYPTO_cleanup_all_ex_data(), another API change
2852 induced by the "ex_data" overhaul is that X509_STORE_CTX_init() now
2853 has a return value to indicate success or failure.
2856 *) Make it possible to replace the underlying "ERR" functions such that the
2857 global state (2 LHASH tables and 2 locks) is only used by the "default"
2858 implementation. This change also adds two functions to "get" and "set"
2859 the implementation prior to it being automatically set the first time
2860 any other ERR function takes place. Ie. an application can call "get",
2861 pass the return value to a module it has just loaded, and that module
2862 can call its own "set" function using that value. This means the
2863 module's "ERR" operations will use (and modify) the error state in the
2864 application and not in its own statically linked copy of OpenSSL code.
2867 *) Give DH, DSA, and RSA types their own "**_up_ref()" function to increment
2868 reference counts. This performs normal REF_PRINT/REF_CHECK macros on
2869 the operation, and provides a more encapsulated way for external code
2870 (crypto/evp/ and ssl/) to do this. Also changed the evp and ssl code
2871 to use these functions rather than manually incrementing the counts.
2873 Also rename "DSO_up()" function to more descriptive "DSO_up_ref()".
2876 *) Add EVP test program.
2879 *) Add symmetric cipher support to ENGINE. Expect the API to change!
2882 *) New CRL functions: X509_CRL_set_version(), X509_CRL_set_issuer_name()
2883 X509_CRL_set_lastUpdate(), X509_CRL_set_nextUpdate(), X509_CRL_sort(),
2884 X509_REVOKED_set_serialNumber(), and X509_REVOKED_set_revocationDate().
2885 These allow a CRL to be built without having to access X509_CRL fields
2886 directly. Modify 'ca' application to use new functions.
2889 *) Move SSL_OP_TLS_ROLLBACK_BUG out of the SSL_OP_ALL list of recommended
2890 bug workarounds. Rollback attack detection is a security feature.
2891 The problem will only arise on OpenSSL servers when TLSv1 is not
2892 available (sslv3_server_method() or SSL_OP_NO_TLSv1).
2893 Software authors not wanting to support TLSv1 will have special reasons
2894 for their choice and can explicitly enable this option.
2895 [Bodo Moeller, Lutz Jaenicke]
2897 *) Rationalise EVP so it can be extended: don't include a union of
2898 cipher/digest structures, add init/cleanup functions for EVP_MD_CTX
2899 (similar to those existing for EVP_CIPHER_CTX).
2904 EVP_MD_CTX_init(&md); /* new function call */
2905 EVP_DigestInit(&md, EVP_sha1());
2906 EVP_DigestUpdate(&md, in, len);
2907 EVP_DigestFinal(&md, out, NULL);
2908 EVP_MD_CTX_cleanup(&md); /* new function call */
2912 *) Make DES key schedule conform to the usual scheme, as well as
2913 correcting its structure. This means that calls to DES functions
2914 now have to pass a pointer to a des_key_schedule instead of a
2915 plain des_key_schedule (which was actually always a pointer
2918 des_key_schedule ks;
2920 des_set_key_checked(..., &ks);
2921 des_ncbc_encrypt(..., &ks, ...);
2923 (Note that a later change renames 'des_...' into 'DES_...'.)
2926 *) Initial reduction of linker bloat: the use of some functions, such as
2927 PEM causes large amounts of unused functions to be linked in due to
2928 poor organisation. For example pem_all.c contains every PEM function
2929 which has a knock on effect of linking in large amounts of (unused)
2930 ASN1 code. Grouping together similar functions and splitting unrelated
2931 functions prevents this.
2934 *) Cleanup of EVP macros.
2937 *) Change historical references to {NID,SN,LN}_des_ede and ede3 to add the
2938 correct _ecb suffix.
2941 *) Add initial OCSP responder support to ocsp application. The
2942 revocation information is handled using the text based index
2943 use by the ca application. The responder can either handle
2944 requests generated internally, supplied in files (for example
2945 via a CGI script) or using an internal minimal server.
2948 *) Add configuration choices to get zlib compression for TLS.
2951 *) Changes to Kerberos SSL for RFC 2712 compliance:
2952 1. Implemented real KerberosWrapper, instead of just using
2953 KRB5 AP_REQ message. [Thanks to Simon Wilkinson <sxw@sxw.org.uk>]
2954 2. Implemented optional authenticator field of KerberosWrapper.
2956 Added openssl-style ASN.1 macros for Kerberos ticket, ap_req,
2957 and authenticator structs; see crypto/krb5/.
2959 Generalized Kerberos calls to support multiple Kerberos libraries.
2960 [Vern Staats <staatsvr@asc.hpc.mil>,
2961 Jeffrey Altman <jaltman@columbia.edu>
2962 via Richard Levitte]
2964 *) Cause 'openssl speed' to use fully hard-coded DSA keys as it
2965 already does with RSA. testdsa.h now has 'priv_key/pub_key'
2966 values for each of the key sizes rather than having just
2967 parameters (and 'speed' generating keys each time).
2970 *) Speed up EVP routines.
2973 type 8 bytes 64 bytes 256 bytes 1024 bytes 8192 bytes
2974 des-cbc 4408.85k 5560.51k 5778.46k 5862.20k 5825.16k
2975 des-cbc 4389.55k 5571.17k 5792.23k 5846.91k 5832.11k
2976 des-cbc 4394.32k 5575.92k 5807.44k 5848.37k 5841.30k
2978 des-cbc 3482.66k 5069.49k 5496.39k 5614.16k 5639.28k
2979 des-cbc 3480.74k 5068.76k 5510.34k 5609.87k 5635.52k
2980 des-cbc 3483.72k 5067.62k 5504.60k 5708.01k 5724.80k
2983 des-cbc 4660.16k 5650.19k 5807.19k 5827.13k 5783.32k
2985 des-cbc 3624.96k 5258.21k 5530.91k 5624.30k 5628.26k
2988 *) Added the OS2-EMX target.
2989 ["Brian Havard" <brianh@kheldar.apana.org.au> and Richard Levitte]
2991 *) Rewrite apps to use NCONF routines instead of the old CONF. New functions
2992 to support NCONF routines in extension code. New function CONF_set_nconf()
2993 to allow functions which take an NCONF to also handle the old LHASH
2994 structure: this means that the old CONF compatible routines can be
2995 retained (in particular wrt extensions) without having to duplicate the
2996 code. New function X509V3_add_ext_nconf_sk to add extensions to a stack.
2999 *) Enhance the general user interface with mechanisms for inner control
3000 and with possibilities to have yes/no kind of prompts.
3003 *) Change all calls to low level digest routines in the library and
3004 applications to use EVP. Add missing calls to HMAC_cleanup() and
3005 don't assume HMAC_CTX can be copied using memcpy().
3006 [Verdon Walker <VWalker@novell.com>, Steve Henson]
3008 *) Add the possibility to control engines through control names but with
3009 arbitrary arguments instead of just a string.
3010 Change the key loaders to take a UI_METHOD instead of a callback
3011 function pointer. NOTE: this breaks binary compatibility with earlier
3012 versions of OpenSSL [engine].
3013 Adapt the nCipher code for these new conditions and add a card insertion
3017 *) Enhance the general user interface with mechanisms to better support
3018 dialog box interfaces, application-defined prompts, the possibility
3019 to use defaults (for example default passwords from somewhere else)
3020 and interrupts/cancellations.
3023 *) Tidy up PKCS#12 attribute handling. Add support for the CSP name
3024 attribute in PKCS#12 files, add new -CSP option to pkcs12 utility.
3027 *) Fix a memory leak in 'sk_dup()' in the case reallocation fails. (Also
3028 tidy up some unnecessarily weird code in 'sk_new()').
3029 [Geoff, reported by Diego Tartara <dtartara@novamens.com>]
3031 *) Change the key loading routines for ENGINEs to use the same kind
3032 callback (pem_password_cb) as all other routines that need this
3036 *) Increase ENTROPY_NEEDED to 32 bytes, as Rijndael can operate with
3037 256 bit (=32 byte) keys. Of course seeding with more entropy bytes
3038 than this minimum value is recommended.
3041 *) New random seeder for OpenVMS, using the system process statistics
3042 that are easily reachable.
3045 *) Windows apparently can't transparently handle global
3046 variables defined in DLLs. Initialisations such as:
3048 const ASN1_ITEM *it = &ASN1_INTEGER_it;
3050 wont compile. This is used by the any applications that need to
3051 declare their own ASN1 modules. This was fixed by adding the option
3052 EXPORT_VAR_AS_FN to all Win32 platforms, although this isn't strictly
3053 needed for static libraries under Win32.
3056 *) New functions X509_PURPOSE_set() and X509_TRUST_set() to handle
3057 setting of purpose and trust fields. New X509_STORE trust and
3058 purpose functions and tidy up setting in other SSL functions.
3061 *) Add copies of X509_STORE_CTX fields and callbacks to X509_STORE
3062 structure. These are inherited by X509_STORE_CTX when it is
3063 initialised. This allows various defaults to be set in the
3064 X509_STORE structure (such as flags for CRL checking and custom
3065 purpose or trust settings) for functions which only use X509_STORE_CTX
3066 internally such as S/MIME.
3068 Modify X509_STORE_CTX_purpose_inherit() so it only sets purposes and
3069 trust settings if they are not set in X509_STORE. This allows X509_STORE
3070 purposes and trust (in S/MIME for example) to override any set by default.
3072 Add command line options for CRL checking to smime, s_client and s_server
3076 *) Initial CRL based revocation checking. If the CRL checking flag(s)
3077 are set then the CRL is looked up in the X509_STORE structure and
3078 its validity and signature checked, then if the certificate is found
3079 in the CRL the verify fails with a revoked error.
3081 Various new CRL related callbacks added to X509_STORE_CTX structure.
3083 Command line options added to 'verify' application to support this.
3085 This needs some additional work, such as being able to handle multiple
3086 CRLs with different times, extension based lookup (rather than just
3087 by subject name) and ultimately more complete V2 CRL extension
3091 *) Add a general user interface API (crypto/ui/). This is designed
3092 to replace things like des_read_password and friends (backward
3093 compatibility functions using this new API are provided).
3094 The purpose is to remove prompting functions from the DES code
3095 section as well as provide for prompting through dialog boxes in
3096 a window system and the like.
3099 *) Add "ex_data" support to ENGINE so implementations can add state at a
3100 per-structure level rather than having to store it globally.
3103 *) Make it possible for ENGINE structures to be copied when retrieved by
3104 ENGINE_by_id() if the ENGINE specifies a new flag: ENGINE_FLAGS_BY_ID_COPY.
3105 This causes the "original" ENGINE structure to act like a template,
3106 analogous to the RSA vs. RSA_METHOD type of separation. Because of this
3107 operational state can be localised to each ENGINE structure, despite the
3108 fact they all share the same "methods". New ENGINE structures returned in
3109 this case have no functional references and the return value is the single
3110 structural reference. This matches the single structural reference returned
3111 by ENGINE_by_id() normally, when it is incremented on the pre-existing
3115 *) Fix ASN1 decoder when decoding type ANY and V_ASN1_OTHER: since this
3116 needs to match any other type at all we need to manually clear the
3120 *) Changes to the "openssl engine" utility to include;
3121 - verbosity levels ('-v', '-vv', and '-vvv') that provide information
3122 about an ENGINE's available control commands.
3123 - executing control commands from command line arguments using the
3124 '-pre' and '-post' switches. '-post' is only used if '-t' is
3125 specified and the ENGINE is successfully initialised. The syntax for
3126 the individual commands are colon-separated, for example;
3127 openssl engine chil -pre FORK_CHECK:0 -pre SO_PATH:/lib/test.so
3130 *) New dynamic control command support for ENGINEs. ENGINEs can now
3131 declare their own commands (numbers), names (strings), descriptions,
3132 and input types for run-time discovery by calling applications. A
3133 subset of these commands are implicitly classed as "executable"
3134 depending on their input type, and only these can be invoked through
3135 the new string-based API function ENGINE_ctrl_cmd_string(). (Eg. this
3136 can be based on user input, config files, etc). The distinction is
3137 that "executable" commands cannot return anything other than a boolean
3138 result and can only support numeric or string input, whereas some
3139 discoverable commands may only be for direct use through
3140 ENGINE_ctrl(), eg. supporting the exchange of binary data, function
3141 pointers, or other custom uses. The "executable" commands are to
3142 support parameterisations of ENGINE behaviour that can be
3143 unambiguously defined by ENGINEs and used consistently across any
3144 OpenSSL-based application. Commands have been added to all the
3145 existing hardware-supporting ENGINEs, noticeably "SO_PATH" to allow
3146 control over shared-library paths without source code alterations.
3149 *) Changed all ENGINE implementations to dynamically allocate their
3150 ENGINEs rather than declaring them statically. Apart from this being
3151 necessary with the removal of the ENGINE_FLAGS_MALLOCED distinction,
3152 this also allows the implementations to compile without using the
3153 internal engine_int.h header.
3156 *) Minor adjustment to "rand" code. RAND_get_rand_method() now returns a
3157 'const' value. Any code that should be able to modify a RAND_METHOD
3158 should already have non-const pointers to it (ie. they should only
3159 modify their own ones).
3162 *) Made a variety of little tweaks to the ENGINE code.
3163 - "atalla" and "ubsec" string definitions were moved from header files
3164 to C code. "nuron" string definitions were placed in variables
3165 rather than hard-coded - allowing parameterisation of these values
3166 later on via ctrl() commands.
3167 - Removed unused "#if 0"'d code.
3168 - Fixed engine list iteration code so it uses ENGINE_free() to release
3169 structural references.
3170 - Constified the RAND_METHOD element of ENGINE structures.
3171 - Constified various get/set functions as appropriate and added
3172 missing functions (including a catch-all ENGINE_cpy that duplicates
3173 all ENGINE values onto a new ENGINE except reference counts/state).
3174 - Removed NULL parameter checks in get/set functions. Setting a method
3175 or function to NULL is a way of cancelling out a previously set
3176 value. Passing a NULL ENGINE parameter is just plain stupid anyway
3177 and doesn't justify the extra error symbols and code.
3178 - Deprecate the ENGINE_FLAGS_MALLOCED define and move the area for
3179 flags from engine_int.h to engine.h.
3180 - Changed prototypes for ENGINE handler functions (init(), finish(),
3181 ctrl(), key-load functions, etc) to take an (ENGINE*) parameter.
3184 *) Implement binary inversion algorithm for BN_mod_inverse in addition
3185 to the algorithm using long division. The binary algorithm can be
3186 used only if the modulus is odd. On 32-bit systems, it is faster
3187 only for relatively small moduli (roughly 20-30% for 128-bit moduli,
3188 roughly 5-15% for 256-bit moduli), so we use it only for moduli
3189 up to 450 bits. In 64-bit environments, the binary algorithm
3190 appears to be advantageous for much longer moduli; here we use it
3191 for moduli up to 2048 bits.
3194 *) Rewrite CHOICE field setting in ASN1_item_ex_d2i(). The old code
3195 could not support the combine flag in choice fields.
3198 *) Add a 'copy_extensions' option to the 'ca' utility. This copies
3199 extensions from a certificate request to the certificate.
3202 *) Allow multiple 'certopt' and 'nameopt' options to be separated
3203 by commas. Add 'namopt' and 'certopt' options to the 'ca' config
3204 file: this allows the display of the certificate about to be
3205 signed to be customised, to allow certain fields to be included
3206 or excluded and extension details. The old system didn't display
3207 multicharacter strings properly, omitted fields not in the policy
3208 and couldn't display additional details such as extensions.
3211 *) Function EC_POINTs_mul for multiple scalar multiplication
3212 of an arbitrary number of elliptic curve points
3213 \sum scalars[i]*points[i],
3214 optionally including the generator defined for the EC_GROUP:
3215 scalar*generator + \sum scalars[i]*points[i].
3217 EC_POINT_mul is a simple wrapper function for the typical case
3218 that the point list has just one item (besides the optional
3222 *) First EC_METHODs for curves over GF(p):
3224 EC_GFp_simple_method() uses the basic BN_mod_mul and BN_mod_sqr
3225 operations and provides various method functions that can also
3226 operate with faster implementations of modular arithmetic.
3228 EC_GFp_mont_method() reuses most functions that are part of
3229 EC_GFp_simple_method, but uses Montgomery arithmetic.
3231 [Bodo Moeller; point addition and point doubling
3232 implementation directly derived from source code provided by
3233 Lenka Fibikova <fibikova@exp-math.uni-essen.de>]
3235 *) Framework for elliptic curves (crypto/ec/ec.h, crypto/ec/ec_lcl.h,
3236 crypto/ec/ec_lib.c):
3238 Curves are EC_GROUP objects (with an optional group generator)
3239 based on EC_METHODs that are built into the library.
3241 Points are EC_POINT objects based on EC_GROUP objects.
3243 Most of the framework would be able to handle curves over arbitrary
3244 finite fields, but as there are no obvious types for fields other
3245 than GF(p), some functions are limited to that for now.
3248 *) Add the -HTTP option to s_server. It is similar to -WWW, but requires
3249 that the file contains a complete HTTP response.
3252 *) Add the ec directory to mkdef.pl and mkfiles.pl. In mkdef.pl
3253 change the def and num file printf format specifier from "%-40sXXX"
3254 to "%-39s XXX". The latter will always guarantee a space after the
3255 field while the former will cause them to run together if the field
3256 is 40 of more characters long.
3259 *) Constify the cipher and digest 'method' functions and structures
3260 and modify related functions to take constant EVP_MD and EVP_CIPHER
3264 *) Hide BN_CTX structure details in bn_lcl.h instead of publishing them
3265 in <openssl/bn.h>. Also further increase BN_CTX_NUM to 32.
3268 *) Modify EVP_Digest*() routines so they now return values. Although the
3269 internal software routines can never fail additional hardware versions
3273 *) Clean up crypto/err/err.h and change some error codes to avoid conflicts:
3275 Previously ERR_R_FATAL was too small and coincided with ERR_LIB_PKCS7
3276 (= ERR_R_PKCS7_LIB); it is now 64 instead of 32.
3279 ERR_R_NESTED_ASN1_ERROR
3281 ERR_R_MISSING_ASN1_EOS
3282 were 4 .. 9, conflicting with
3283 ERR_LIB_RSA (= ERR_R_RSA_LIB)
3285 ERR_LIB_PEM (= ERR_R_PEM_LIB).
3286 They are now 58 .. 63 (i.e., just below ERR_R_FATAL).
3288 Add new error code 'ERR_R_INTERNAL_ERROR'.
3291 *) Don't overuse locks in crypto/err/err.c: For data retrieval, CRYPTO_r_lock
3295 *) New option '-subj arg' for 'openssl req' and 'openssl ca'. This
3296 sets the subject name for a new request or supersedes the
3297 subject name in a given request. Formats that can be parsed are
3298 'CN=Some Name, OU=myOU, C=IT'
3300 'CN=Some Name/OU=myOU/C=IT'.
3302 Add options '-batch' and '-verbose' to 'openssl req'.
3303 [Massimiliano Pala <madwolf@hackmasters.net>]
3305 *) Introduce the possibility to access global variables through
3306 functions on platform were that's the best way to handle exporting
3307 global variables in shared libraries. To enable this functionality,
3308 one must configure with "EXPORT_VAR_AS_FN" or defined the C macro
3309 "OPENSSL_EXPORT_VAR_AS_FUNCTION" in crypto/opensslconf.h (the latter
3310 is normally done by Configure or something similar).
3312 To implement a global variable, use the macro OPENSSL_IMPLEMENT_GLOBAL
3313 in the source file (foo.c) like this:
3315 OPENSSL_IMPLEMENT_GLOBAL(int,foo)=1;
3316 OPENSSL_IMPLEMENT_GLOBAL(double,bar);
3318 To declare a global variable, use the macros OPENSSL_DECLARE_GLOBAL
3319 and OPENSSL_GLOBAL_REF in the header file (foo.h) like this:
3321 OPENSSL_DECLARE_GLOBAL(int,foo);
3322 #define foo OPENSSL_GLOBAL_REF(foo)
3323 OPENSSL_DECLARE_GLOBAL(double,bar);
3324 #define bar OPENSSL_GLOBAL_REF(bar)
3326 The #defines are very important, and therefore so is including the
3327 header file everywhere where the defined globals are used.
3329 The macro OPENSSL_EXPORT_VAR_AS_FUNCTION also affects the definition
3330 of ASN.1 items, but that structure is a bit different.
3332 The largest change is in util/mkdef.pl which has been enhanced with
3333 better and easier to understand logic to choose which symbols should
3334 go into the Windows .def files as well as a number of fixes and code
3335 cleanup (among others, algorithm keywords are now sorted
3336 lexicographically to avoid constant rewrites).
3339 *) In BN_div() keep a copy of the sign of 'num' before writing the
3340 result to 'rm' because if rm==num the value will be overwritten
3341 and produce the wrong result if 'num' is negative: this caused
3342 problems with BN_mod() and BN_nnmod().
3345 *) Function OCSP_request_verify(). This checks the signature on an
3346 OCSP request and verifies the signer certificate. The signer
3347 certificate is just checked for a generic purpose and OCSP request
3351 *) Add OCSP_check_validity() function to check the validity of OCSP
3352 responses. OCSP responses are prepared in real time and may only
3353 be a few seconds old. Simply checking that the current time lies
3354 between thisUpdate and nextUpdate max reject otherwise valid responses
3355 caused by either OCSP responder or client clock inaccuracy. Instead
3356 we allow thisUpdate and nextUpdate to fall within a certain period of
3357 the current time. The age of the response can also optionally be
3358 checked. Two new options -validity_period and -status_age added to
3362 *) If signature or public key algorithm is unrecognized print out its
3363 OID rather that just UNKNOWN.
3366 *) Change OCSP_cert_to_id() to tolerate a NULL subject certificate and
3367 OCSP_cert_id_new() a NULL serialNumber. This allows a partial certificate
3368 ID to be generated from the issuer certificate alone which can then be
3369 passed to OCSP_id_issuer_cmp().
3372 *) New compilation option ASN1_ITEM_FUNCTIONS. This causes the new
3373 ASN1 modules to export functions returning ASN1_ITEM pointers
3374 instead of the ASN1_ITEM structures themselves. This adds several
3375 new macros which allow the underlying ASN1 function/structure to
3376 be accessed transparently. As a result code should not use ASN1_ITEM
3377 references directly (such as &X509_it) but instead use the relevant
3378 macros (such as ASN1_ITEM_rptr(X509)). This option is to allow
3379 use of the new ASN1 code on platforms where exporting structures
3380 is problematical (for example in shared libraries) but exporting
3381 functions returning pointers to structures is not.
3384 *) Add support for overriding the generation of SSL/TLS session IDs.
3385 These callbacks can be registered either in an SSL_CTX or per SSL.
3386 The purpose of this is to allow applications to control, if they wish,
3387 the arbitrary values chosen for use as session IDs, particularly as it
3388 can be useful for session caching in multiple-server environments. A
3389 command-line switch for testing this (and any client code that wishes
3390 to use such a feature) has been added to "s_server".
3391 [Geoff Thorpe, Lutz Jaenicke]
3393 *) Modify mkdef.pl to recognise and parse preprocessor conditionals
3394 of the form '#if defined(...) || defined(...) || ...' and
3395 '#if !defined(...) && !defined(...) && ...'. This also avoids
3396 the growing number of special cases it was previously handling.
3399 *) Make all configuration macros available for application by making
3400 sure they are available in opensslconf.h, by giving them names starting
3401 with "OPENSSL_" to avoid conflicts with other packages and by making
3402 sure e_os2.h will cover all platform-specific cases together with
3404 Additionally, it is now possible to define configuration/platform-
3405 specific names (called "system identities"). In the C code, these
3406 are prefixed with "OPENSSL_SYSNAME_". e_os2.h will create another
3407 macro with the name beginning with "OPENSSL_SYS_", which is determined
3408 from "OPENSSL_SYSNAME_*" or compiler-specific macros depending on
3412 *) New option -set_serial to 'req' and 'x509' this allows the serial
3413 number to use to be specified on the command line. Previously self
3414 signed certificates were hard coded with serial number 0 and the
3415 CA options of 'x509' had to use a serial number in a file which was
3419 *) New options to 'ca' utility to support V2 CRL entry extensions.
3420 Currently CRL reason, invalidity date and hold instruction are
3421 supported. Add new CRL extensions to V3 code and some new objects.
3424 *) New function EVP_CIPHER_CTX_set_padding() this is used to
3425 disable standard block padding (aka PKCS#5 padding) in the EVP
3426 API, which was previously mandatory. This means that the data is
3427 not padded in any way and so the total length much be a multiple
3428 of the block size, otherwise an error occurs.
3431 *) Initial (incomplete) OCSP SSL support.
3434 *) New function OCSP_parse_url(). This splits up a URL into its host,
3435 port and path components: primarily to parse OCSP URLs. New -url
3436 option to ocsp utility.
3439 *) New nonce behavior. The return value of OCSP_check_nonce() now
3440 reflects the various checks performed. Applications can decide
3441 whether to tolerate certain situations such as an absent nonce
3442 in a response when one was present in a request: the ocsp application
3443 just prints out a warning. New function OCSP_add1_basic_nonce()
3444 this is to allow responders to include a nonce in a response even if
3445 the request is nonce-less.
3448 *) Disable stdin buffering in load_cert (apps/apps.c) so that no certs are
3449 skipped when using openssl x509 multiple times on a single input file,
3450 e.g. "(openssl x509 -out cert1; openssl x509 -out cert2) <certs".
3453 *) Make ASN1_UTCTIME_set_string() and ASN1_GENERALIZEDTIME_set_string()
3454 set string type: to handle setting ASN1_TIME structures. Fix ca
3455 utility to correctly initialize revocation date of CRLs.
3458 *) New option SSL_OP_CIPHER_SERVER_PREFERENCE allows the server to override
3459 the clients preferred ciphersuites and rather use its own preferences.
3460 Should help to work around M$ SGC (Server Gated Cryptography) bug in
3461 Internet Explorer by ensuring unchanged hash method during stepup.
3462 (Also replaces the broken/deactivated SSL_OP_NON_EXPORT_FIRST option.)
3465 *) Make mkdef.pl recognise all DECLARE_ASN1 macros, change rijndael
3466 to aes and add a new 'exist' option to print out symbols that don't
3470 *) Additional options to ocsp utility to allow flags to be set and
3471 additional certificates supplied.
3474 *) Add the option -VAfile to 'openssl ocsp', so the user can give the
3475 OCSP client a number of certificate to only verify the response
3479 *) Update Rijndael code to version 3.0 and change EVP AES ciphers to
3480 handle the new API. Currently only ECB, CBC modes supported. Add new
3483 Add TLS AES ciphersuites as described in RFC3268, "Advanced
3484 Encryption Standard (AES) Ciphersuites for Transport Layer
3485 Security (TLS)". (In beta versions of OpenSSL 0.9.7, these were
3486 not enabled by default and were not part of the "ALL" ciphersuite
3487 alias because they were not yet official; they could be
3488 explicitly requested by specifying the "AESdraft" ciphersuite
3489 group alias. In the final release of OpenSSL 0.9.7, the group
3490 alias is called "AES" and is part of "ALL".)
3491 [Ben Laurie, Steve Henson, Bodo Moeller]
3493 *) New function OCSP_copy_nonce() to copy nonce value (if present) from
3494 request to response.
3497 *) Functions for OCSP responders. OCSP_request_onereq_count(),
3498 OCSP_request_onereq_get0(), OCSP_onereq_get0_id() and OCSP_id_get0_info()
3499 extract information from a certificate request. OCSP_response_create()
3500 creates a response and optionally adds a basic response structure.
3501 OCSP_basic_add1_status() adds a complete single response to a basic
3502 response and returns the OCSP_SINGLERESP structure just added (to allow
3503 extensions to be included for example). OCSP_basic_add1_cert() adds a
3504 certificate to a basic response and OCSP_basic_sign() signs a basic
3505 response with various flags. New helper functions ASN1_TIME_check()
3506 (checks validity of ASN1_TIME structure) and ASN1_TIME_to_generalizedtime()
3507 (converts ASN1_TIME to GeneralizedTime).
3510 *) Various new functions. EVP_Digest() combines EVP_Digest{Init,Update,Final}()
3511 in a single operation. X509_get0_pubkey_bitstr() extracts the public_key
3512 structure from a certificate. X509_pubkey_digest() digests the public_key
3513 contents: this is used in various key identifiers.
3516 *) Make sk_sort() tolerate a NULL argument.
3517 [Steve Henson reported by Massimiliano Pala <madwolf@comune.modena.it>]
3519 *) New OCSP verify flag OCSP_TRUSTOTHER. When set the "other" certificates
3520 passed by the function are trusted implicitly. If any of them signed the
3521 response then it is assumed to be valid and is not verified.
3524 *) In PKCS7_set_type() initialise content_type in PKCS7_ENC_CONTENT
3525 to data. This was previously part of the PKCS7 ASN1 code. This
3526 was causing problems with OpenSSL created PKCS#12 and PKCS#7 structures.
3527 [Steve Henson, reported by Kenneth R. Robinette
3528 <support@securenetterm.com>]
3530 *) Add CRYPTO_push_info() and CRYPTO_pop_info() calls to new ASN1
3531 routines: without these tracing memory leaks is very painful.
3532 Fix leaks in PKCS12 and PKCS7 routines.
3535 *) Make X509_time_adj() cope with the new behaviour of ASN1_TIME_new().
3536 Previously it initialised the 'type' argument to V_ASN1_UTCTIME which
3537 effectively meant GeneralizedTime would never be used. Now it
3538 is initialised to -1 but X509_time_adj() now has to check the value
3539 and use ASN1_TIME_set() if the value is not V_ASN1_UTCTIME or
3540 V_ASN1_GENERALIZEDTIME, without this it always uses GeneralizedTime.
3541 [Steve Henson, reported by Kenneth R. Robinette
3542 <support@securenetterm.com>]
3544 *) Fixes to BN_to_ASN1_INTEGER when bn is zero. This would previously
3545 result in a zero length in the ASN1_INTEGER structure which was
3546 not consistent with the structure when d2i_ASN1_INTEGER() was used
3547 and would cause ASN1_INTEGER_cmp() to fail. Enhance s2i_ASN1_INTEGER()
3548 to cope with hex and negative integers. Fix bug in i2a_ASN1_INTEGER()
3549 where it did not print out a minus for negative ASN1_INTEGER.
3552 *) Add summary printout to ocsp utility. The various functions which
3553 convert status values to strings have been renamed to:
3554 OCSP_response_status_str(), OCSP_cert_status_str() and
3555 OCSP_crl_reason_str() and are no longer static. New options
3556 to verify nonce values and to disable verification. OCSP response
3557 printout format cleaned up.
3560 *) Add additional OCSP certificate checks. These are those specified
3561 in RFC2560. This consists of two separate checks: the CA of the
3562 certificate being checked must either be the OCSP signer certificate
3563 or the issuer of the OCSP signer certificate. In the latter case the
3564 OCSP signer certificate must contain the OCSP signing extended key
3565 usage. This check is performed by attempting to match the OCSP
3566 signer or the OCSP signer CA to the issuerNameHash and issuerKeyHash
3567 in the OCSP_CERTID structures of the response.
3570 *) Initial OCSP certificate verification added to OCSP_basic_verify()
3571 and related routines. This uses the standard OpenSSL certificate
3572 verify routines to perform initial checks (just CA validity) and
3573 to obtain the certificate chain. Then additional checks will be
3574 performed on the chain. Currently the root CA is checked to see
3575 if it is explicitly trusted for OCSP signing. This is used to set
3576 a root CA as a global signing root: that is any certificate that
3577 chains to that CA is an acceptable OCSP signing certificate.
3580 *) New '-extfile ...' option to 'openssl ca' for reading X.509v3
3581 extensions from a separate configuration file.
3582 As when reading extensions from the main configuration file,
3583 the '-extensions ...' option may be used for specifying the
3585 [Massimiliano Pala <madwolf@comune.modena.it>]
3587 *) New OCSP utility. Allows OCSP requests to be generated or
3588 read. The request can be sent to a responder and the output
3589 parsed, outputed or printed in text form. Not complete yet:
3590 still needs to check the OCSP response validity.
3593 *) New subcommands for 'openssl ca':
3594 'openssl ca -status <serial>' prints the status of the cert with
3595 the given serial number (according to the index file).
3596 'openssl ca -updatedb' updates the expiry status of certificates
3598 [Massimiliano Pala <madwolf@comune.modena.it>]
3600 *) New '-newreq-nodes' command option to CA.pl. This is like
3601 '-newreq', but calls 'openssl req' with the '-nodes' option
3602 so that the resulting key is not encrypted.
3603 [Damien Miller <djm@mindrot.org>]
3605 *) New configuration for the GNU Hurd.
3606 [Jonathan Bartlett <johnnyb@wolfram.com> via Richard Levitte]
3608 *) Initial code to implement OCSP basic response verify. This
3609 is currently incomplete. Currently just finds the signer's
3610 certificate and verifies the signature on the response.
3613 *) New SSLeay_version code SSLEAY_DIR to determine the compiled-in
3614 value of OPENSSLDIR. This is available via the new '-d' option
3615 to 'openssl version', and is also included in 'openssl version -a'.
3618 *) Allowing defining memory allocation callbacks that will be given
3619 file name and line number information in additional arguments
3620 (a const char* and an int). The basic functionality remains, as
3621 well as the original possibility to just replace malloc(),
3622 realloc() and free() by functions that do not know about these
3623 additional arguments. To register and find out the current
3624 settings for extended allocation functions, the following
3625 functions are provided:
3627 CRYPTO_set_mem_ex_functions
3628 CRYPTO_set_locked_mem_ex_functions
3629 CRYPTO_get_mem_ex_functions
3630 CRYPTO_get_locked_mem_ex_functions
3632 These work the same way as CRYPTO_set_mem_functions and friends.
3633 CRYPTO_get_[locked_]mem_functions now writes 0 where such an
3634 extended allocation function is enabled.
3635 Similarly, CRYPTO_get_[locked_]mem_ex_functions writes 0 where
3636 a conventional allocation function is enabled.
3637 [Richard Levitte, Bodo Moeller]
3639 *) Finish off removing the remaining LHASH function pointer casts.
3640 There should no longer be any prototype-casting required when using
3641 the LHASH abstraction, and any casts that remain are "bugs". See
3642 the callback types and macros at the head of lhash.h for details
3643 (and "OBJ_cleanup" in crypto/objects/obj_dat.c as an example).
3646 *) Add automatic query of EGD sockets in RAND_poll() for the unix variant.
3647 If /dev/[u]random devices are not available or do not return enough
3648 entropy, EGD style sockets (served by EGD or PRNGD) will automatically
3650 The locations /var/run/egd-pool, /dev/egd-pool, /etc/egd-pool, and
3651 /etc/entropy will be queried once each in this sequence, quering stops
3652 when enough entropy was collected without querying more sockets.
3655 *) Change the Unix RAND_poll() variant to be able to poll several
3656 random devices, as specified by DEVRANDOM, until a sufficient amount
3657 of data has been collected. We spend at most 10 ms on each file
3658 (select timeout) and read in non-blocking mode. DEVRANDOM now
3659 defaults to the list "/dev/urandom", "/dev/random", "/dev/srandom"
3660 (previously it was just the string "/dev/urandom"), so on typical
3661 platforms the 10 ms delay will never occur.
3662 Also separate out the Unix variant to its own file, rand_unix.c.
3663 For VMS, there's a currently-empty rand_vms.c.
3666 *) Move OCSP client related routines to ocsp_cl.c. These
3667 provide utility functions which an application needing
3668 to issue a request to an OCSP responder and analyse the
3669 response will typically need: as opposed to those which an
3670 OCSP responder itself would need which will be added later.
3672 OCSP_request_sign() signs an OCSP request with an API similar
3673 to PKCS7_sign(). OCSP_response_status() returns status of OCSP
3674 response. OCSP_response_get1_basic() extracts basic response
3675 from response. OCSP_resp_find_status(): finds and extracts status
3676 information from an OCSP_CERTID structure (which will be created
3677 when the request structure is built). These are built from lower
3678 level functions which work on OCSP_SINGLERESP structures but
3679 wont normally be used unless the application wishes to examine
3680 extensions in the OCSP response for example.
3682 Replace nonce routines with a pair of functions.
3683 OCSP_request_add1_nonce() adds a nonce value and optionally
3684 generates a random value. OCSP_check_nonce() checks the
3685 validity of the nonce in an OCSP response.
3688 *) Change function OCSP_request_add() to OCSP_request_add0_id().
3689 This doesn't copy the supplied OCSP_CERTID and avoids the
3690 need to free up the newly created id. Change return type
3691 to OCSP_ONEREQ to return the internal OCSP_ONEREQ structure.
3692 This can then be used to add extensions to the request.
3693 Deleted OCSP_request_new(), since most of its functionality
3694 is now in OCSP_REQUEST_new() (and the case insensitive name
3695 clash) apart from the ability to set the request name which
3696 will be added elsewhere.
3699 *) Update OCSP API. Remove obsolete extensions argument from
3700 various functions. Extensions are now handled using the new
3701 OCSP extension code. New simple OCSP HTTP function which
3702 can be used to send requests and parse the response.
3705 *) Fix the PKCS#7 (S/MIME) code to work with new ASN1. Two new
3706 ASN1_ITEM structures help with sign and verify. PKCS7_ATTR_SIGN
3707 uses the special reorder version of SET OF to sort the attributes
3708 and reorder them to match the encoded order. This resolves a long
3709 standing problem: a verify on a PKCS7 structure just after signing
3710 it used to fail because the attribute order did not match the
3711 encoded order. PKCS7_ATTR_VERIFY does not reorder the attributes:
3712 it uses the received order. This is necessary to tolerate some broken
3713 software that does not order SET OF. This is handled by encoding
3714 as a SEQUENCE OF but using implicit tagging (with UNIVERSAL class)
3715 to produce the required SET OF.
3718 *) Have mk1mf.pl generate the macros OPENSSL_BUILD_SHLIBCRYPTO and
3719 OPENSSL_BUILD_SHLIBSSL and use them appropriately in the header
3720 files to get correct declarations of the ASN.1 item variables.
3723 *) Rewrite of PKCS#12 code to use new ASN1 functionality. Replace many
3724 PKCS#12 macros with real functions. Fix two unrelated ASN1 bugs:
3725 asn1_check_tlen() would sometimes attempt to use 'ctx' when it was
3726 NULL and ASN1_TYPE was not dereferenced properly in asn1_ex_c2i().
3727 New ASN1 macro: DECLARE_ASN1_ITEM() which just declares the relevant
3728 ASN1_ITEM and no wrapper functions.
3731 *) New functions or ASN1_item_d2i_fp() and ASN1_item_d2i_bio(). These
3732 replace the old function pointer based I/O routines. Change most of
3733 the *_d2i_bio() and *_d2i_fp() functions to use these.
3736 *) Enhance mkdef.pl to be more accepting about spacing in C preprocessor
3737 lines, recognice more "algorithms" that can be deselected, and make
3738 it complain about algorithm deselection that isn't recognised.
3741 *) New ASN1 functions to handle dup, sign, verify, digest, pack and
3742 unpack operations in terms of ASN1_ITEM. Modify existing wrappers
3743 to use new functions. Add NO_ASN1_OLD which can be set to remove
3744 some old style ASN1 functions: this can be used to determine if old
3745 code will still work when these eventually go away.
3748 *) New extension functions for OCSP structures, these follow the
3749 same conventions as certificates and CRLs.
3752 *) New function X509V3_add1_i2d(). This automatically encodes and
3753 adds an extension. Its behaviour can be customised with various
3754 flags to append, replace or delete. Various wrappers added for
3755 certifcates and CRLs.
3758 *) Fix to avoid calling the underlying ASN1 print routine when
3759 an extension cannot be parsed. Correct a typo in the
3760 OCSP_SERVICELOC extension. Tidy up print OCSP format.
3763 *) Make mkdef.pl parse some of the ASN1 macros and add apropriate
3764 entries for variables.
3767 *) Add functionality to apps/openssl.c for detecting locking
3768 problems: As the program is single-threaded, all we have
3769 to do is register a locking callback using an array for
3770 storing which locks are currently held by the program.
3773 *) Use a lock around the call to CRYPTO_get_ex_new_index() in
3774 SSL_get_ex_data_X509_STORE_idx(), which is used in
3775 ssl_verify_cert_chain() and thus can be called at any time
3776 during TLS/SSL handshakes so that thread-safety is essential.
3777 Unfortunately, the ex_data design is not at all suited
3778 for multi-threaded use, so it probably should be abolished.
3781 *) Added Broadcom "ubsec" ENGINE to OpenSSL.
3782 [Broadcom, tweaked and integrated by Geoff Thorpe]
3784 *) Move common extension printing code to new function
3785 X509V3_print_extensions(). Reorganise OCSP print routines and
3786 implement some needed OCSP ASN1 functions. Add OCSP extensions.
3789 *) New function X509_signature_print() to remove duplication in some
3793 *) Add a special meaning when SET OF and SEQUENCE OF flags are both
3794 set (this was treated exactly the same as SET OF previously). This
3795 is used to reorder the STACK representing the structure to match the
3796 encoding. This will be used to get round a problem where a PKCS7
3797 structure which was signed could not be verified because the STACK
3798 order did not reflect the encoded order.
3801 *) Reimplement the OCSP ASN1 module using the new code.
3804 *) Update the X509V3 code to permit the use of an ASN1_ITEM structure
3805 for its ASN1 operations. The old style function pointers still exist
3806 for now but they will eventually go away.
3809 *) Merge in replacement ASN1 code from the ASN1 branch. This almost
3810 completely replaces the old ASN1 functionality with a table driven
3811 encoder and decoder which interprets an ASN1_ITEM structure describing
3812 the ASN1 module. Compatibility with the existing ASN1 API (i2d,d2i) is
3813 largely maintained. Almost all of the old asn1_mac.h macro based ASN1
3814 has also been converted to the new form.
3817 *) Change BN_mod_exp_recp so that negative moduli are tolerated
3818 (the sign is ignored). Similarly, ignore the sign in BN_MONT_CTX_set
3819 so that BN_mod_exp_mont and BN_mod_exp_mont_word work
3820 for negative moduli.
3823 *) Fix BN_uadd and BN_usub: Always return non-negative results instead
3824 of not touching the result's sign bit.
3827 *) BN_div bugfix: If the result is 0, the sign (res->neg) must not be
3831 *) Changed the LHASH code to use prototypes for callbacks, and created
3832 macros to declare and implement thin (optionally static) functions
3833 that provide type-safety and avoid function pointer casting for the
3834 type-specific callbacks.
3837 *) Added Kerberos Cipher Suites to be used with TLS, as written in
3839 [Veers Staats <staatsvr@asc.hpc.mil>,
3840 Jeffrey Altman <jaltman@columbia.edu>, via Richard Levitte]
3842 *) Reformat the FAQ so the different questions and answers can be divided
3843 in sections depending on the subject.
3846 *) Have the zlib compression code load ZLIB.DLL dynamically under
3850 *) New function BN_mod_sqrt for computing square roots modulo a prime
3851 (using the probabilistic Tonelli-Shanks algorithm unless
3852 p == 3 (mod 4) or p == 5 (mod 8), which are cases that can
3853 be handled deterministically).
3854 [Lenka Fibikova <fibikova@exp-math.uni-essen.de>, Bodo Moeller]
3856 *) Make BN_mod_inverse faster by explicitly handling small quotients
3857 in the Euclid loop. (Speed gain about 20% for small moduli [256 or
3858 512 bits], about 30% for larger ones [1024 or 2048 bits].)
3861 *) New function BN_kronecker.
3864 *) Fix BN_gcd so that it works on negative inputs; the result is
3865 positive unless both parameters are zero.
3866 Previously something reasonably close to an infinite loop was
3867 possible because numbers could be growing instead of shrinking
3868 in the implementation of Euclid's algorithm.
3871 *) Fix BN_is_word() and BN_is_one() macros to take into account the
3872 sign of the number in question.
3874 Fix BN_is_word(a,w) to work correctly for w == 0.
3876 The old BN_is_word(a,w) macro is now called BN_abs_is_word(a,w)
3877 because its test if the absolute value of 'a' equals 'w'.
3878 Note that BN_abs_is_word does *not* handle w == 0 reliably;
3879 it exists mostly for use in the implementations of BN_is_zero(),
3880 BN_is_one(), and BN_is_word().
3883 *) New function BN_swap.
3886 *) Use BN_nnmod instead of BN_mod in crypto/bn/bn_exp.c so that
3887 the exponentiation functions are more likely to produce reasonable
3888 results on negative inputs.
3891 *) Change BN_mod_mul so that the result is always non-negative.
3892 Previously, it could be negative if one of the factors was negative;
3893 I don't think anyone really wanted that behaviour.
3896 *) Move BN_mod_... functions into new file crypto/bn/bn_mod.c
3897 (except for exponentiation, which stays in crypto/bn/bn_exp.c,
3898 and BN_mod_mul_reciprocal, which stays in crypto/bn/bn_recp.c)
3899 and add new functions:
3908 BN_mod_lshift1_quick
3912 These functions always generate non-negative results.
3914 BN_nnmod otherwise is like BN_mod (if BN_mod computes a remainder r
3915 such that |m| < r < 0, BN_nnmod will output rem + |m| instead).
3917 BN_mod_XXX_quick(r, a, [b,] m) generates the same result as
3918 BN_mod_XXX(r, a, [b,] m, ctx), but requires that a [and b]
3919 be reduced modulo m.
3920 [Lenka Fibikova <fibikova@exp-math.uni-essen.de>, Bodo Moeller]
3923 The following entry accidentily appeared in the CHANGES file
3924 distributed with OpenSSL 0.9.7. The modifications described in
3925 it do *not* apply to OpenSSL 0.9.7.
3927 *) Remove a few calls to bn_wexpand() in BN_sqr() (the one in there
3928 was actually never needed) and in BN_mul(). The removal in BN_mul()
3929 required a small change in bn_mul_part_recursive() and the addition
3930 of the functions bn_cmp_part_words(), bn_sub_part_words() and
3931 bn_add_part_words(), which do the same thing as bn_cmp_words(),
3932 bn_sub_words() and bn_add_words() except they take arrays with
3937 *) In 'openssl passwd', verify passwords read from the terminal
3938 unless the '-salt' option is used (which usually means that
3939 verification would just waste user's time since the resulting
3940 hash is going to be compared with some given password hash)
3941 or the new '-noverify' option is used.
3943 This is an incompatible change, but it does not affect
3944 non-interactive use of 'openssl passwd' (passwords on the command
3945 line, '-stdin' option, '-in ...' option) and thus should not
3949 *) Remove all references to RSAref, since there's no more need for it.
3952 *) Make DSO load along a path given through an environment variable
3953 (SHLIB_PATH) with shl_load().
3956 *) Constify the ENGINE code as a result of BIGNUM constification.
3957 Also constify the RSA code and most things related to it. In a
3958 few places, most notable in the depth of the ASN.1 code, ugly
3959 casts back to non-const were required (to be solved at a later
3963 *) Make it so the openssl application has all engines loaded by default.
3966 *) Constify the BIGNUM routines a little more.
3969 *) Add the following functions:
3971 ENGINE_load_cswift()
3973 ENGINE_load_atalla()
3975 ENGINE_load_builtin_engines()
3977 That way, an application can itself choose if external engines that
3978 are built-in in OpenSSL shall ever be used or not. The benefit is
3979 that applications won't have to be linked with libdl or other dso
3980 libraries unless it's really needed.
3982 Changed 'openssl engine' to load all engines on demand.
3983 Changed the engine header files to avoid the duplication of some
3984 declarations (they differed!).
3987 *) 'openssl engine' can now list capabilities.
3990 *) Better error reporting in 'openssl engine'.
3993 *) Never call load_dh_param(NULL) in s_server.
3996 *) Add engine application. It can currently list engines by name and
3997 identity, and test if they are actually available.
4000 *) Improve RPM specification file by forcing symbolic linking and making
4001 sure the installed documentation is also owned by root.root.
4002 [Damien Miller <djm@mindrot.org>]
4004 *) Give the OpenSSL applications more possibilities to make use of
4005 keys (public as well as private) handled by engines.
4008 *) Add OCSP code that comes from CertCo.
4011 *) Add VMS support for the Rijndael code.
4014 *) Added untested support for Nuron crypto accelerator.
4017 *) Add support for external cryptographic devices. This code was
4018 previously distributed separately as the "engine" branch.
4019 [Geoff Thorpe, Richard Levitte]
4021 *) Rework the filename-translation in the DSO code. It is now possible to
4022 have far greater control over how a "name" is turned into a filename
4023 depending on the operating environment and any oddities about the
4024 different shared library filenames on each system.
4027 *) Support threads on FreeBSD-elf in Configure.
4030 *) Fix for SHA1 assembly problem with MASM: it produces
4031 warnings about corrupt line number information when assembling
4032 with debugging information. This is caused by the overlapping
4034 [Bernd Matthes <mainbug@celocom.de>, Steve Henson]
4037 NCONF_get_number() has no error checking at all. As a replacement,
4038 NCONF_get_number_e() is defined (_e for "error checking") and is
4039 promoted strongly. The old NCONF_get_number is kept around for
4040 binary backward compatibility.
4041 Make it possible for methods to load from something other than a BIO,
4042 by providing a function pointer that is given a name instead of a BIO.
4043 For example, this could be used to load configuration data from an
4047 *) Fix for non blocking accept BIOs. Added new I/O special reason
4048 BIO_RR_ACCEPT to cover this case. Previously use of accept BIOs
4049 with non blocking I/O was not possible because no retry code was
4050 implemented. Also added new SSL code SSL_WANT_ACCEPT to cover
4054 *) Added the beginnings of Rijndael support.
4057 *) Fix for bug in DirectoryString mask setting. Add support for
4058 X509_NAME_print_ex() in 'req' and X509_print_ex() function
4059 to allow certificate printing to more controllable, additional
4060 'certopt' option to 'x509' to allow new printing options to be
4064 *) Clean old EAY MD5 hack from e_os.h.
4067 Changes between 0.9.6l and 0.9.6m [17 Mar 2004]
4069 *) Fix null-pointer assignment in do_change_cipher_spec() revealed
4070 by using the Codenomicon TLS Test Tool (CVE-2004-0079)
4071 [Joe Orton, Steve Henson]
4073 Changes between 0.9.6k and 0.9.6l [04 Nov 2003]
4075 *) Fix additional bug revealed by the NISCC test suite:
4077 Stop bug triggering large recursion when presented with
4078 certain ASN.1 tags (CVE-2003-0851)
4081 Changes between 0.9.6j and 0.9.6k [30 Sep 2003]
4083 *) Fix various bugs revealed by running the NISCC test suite:
4085 Stop out of bounds reads in the ASN1 code when presented with
4086 invalid tags (CVE-2003-0543 and CVE-2003-0544).
4088 If verify callback ignores invalid public key errors don't try to check
4089 certificate signature with the NULL public key.
4093 *) In ssl3_accept() (ssl/s3_srvr.c) only accept a client certificate
4094 if the server requested one: as stated in TLS 1.0 and SSL 3.0
4098 *) In ssl3_get_client_hello() (ssl/s3_srvr.c), tolerate additional
4099 extra data after the compression methods not only for TLS 1.0
4100 but also for SSL 3.0 (as required by the specification).
4101 [Bodo Moeller; problem pointed out by Matthias Loepfe]
4103 *) Change X509_certificate_type() to mark the key as exported/exportable
4104 when it's 512 *bits* long, not 512 bytes.
4107 Changes between 0.9.6i and 0.9.6j [10 Apr 2003]
4109 *) Countermeasure against the Klima-Pokorny-Rosa extension of
4110 Bleichbacher's attack on PKCS #1 v1.5 padding: treat
4111 a protocol version number mismatch like a decryption error
4112 in ssl3_get_client_key_exchange (ssl/s3_srvr.c).
4115 *) Turn on RSA blinding by default in the default implementation
4116 to avoid a timing attack. Applications that don't want it can call
4117 RSA_blinding_off() or use the new flag RSA_FLAG_NO_BLINDING.
4118 They would be ill-advised to do so in most cases.
4119 [Ben Laurie, Steve Henson, Geoff Thorpe, Bodo Moeller]
4121 *) Change RSA blinding code so that it works when the PRNG is not
4122 seeded (in this case, the secret RSA exponent is abused as
4123 an unpredictable seed -- if it is not unpredictable, there
4124 is no point in blinding anyway). Make RSA blinding thread-safe
4125 by remembering the creator's thread ID in rsa->blinding and
4126 having all other threads use local one-time blinding factors
4127 (this requires more computation than sharing rsa->blinding, but
4128 avoids excessive locking; and if an RSA object is not shared
4129 between threads, blinding will still be very fast).
4132 Changes between 0.9.6h and 0.9.6i [19 Feb 2003]
4134 *) In ssl3_get_record (ssl/s3_pkt.c), minimize information leaked
4135 via timing by performing a MAC computation even if incorrrect
4136 block cipher padding has been found. This is a countermeasure
4137 against active attacks where the attacker has to distinguish
4138 between bad padding and a MAC verification error. (CVE-2003-0078)
4140 [Bodo Moeller; problem pointed out by Brice Canvel (EPFL),
4141 Alain Hiltgen (UBS), Serge Vaudenay (EPFL), and
4142 Martin Vuagnoux (EPFL, Ilion)]
4144 Changes between 0.9.6g and 0.9.6h [5 Dec 2002]
4146 *) New function OPENSSL_cleanse(), which is used to cleanse a section of
4147 memory from it's contents. This is done with a counter that will
4148 place alternating values in each byte. This can be used to solve
4149 two issues: 1) the removal of calls to memset() by highly optimizing
4150 compilers, and 2) cleansing with other values than 0, since those can
4151 be read through on certain media, for example a swap space on disk.
4154 *) Bugfix: client side session caching did not work with external caching,
4155 because the session->cipher setting was not restored when reloading
4156 from the external cache. This problem was masked, when
4157 SSL_OP_NETSCAPE_REUSE_CIPHER_CHANGE_BUG (part of SSL_OP_ALL) was set.
4158 (Found by Steve Haslam <steve@araqnid.ddts.net>.)
4161 *) Fix client_certificate (ssl/s2_clnt.c): The permissible total
4162 length of the REQUEST-CERTIFICATE message is 18 .. 34, not 17 .. 33.
4163 [Zeev Lieber <zeev-l@yahoo.com>]
4165 *) Undo an undocumented change introduced in 0.9.6e which caused
4166 repeated calls to OpenSSL_add_all_ciphers() and
4167 OpenSSL_add_all_digests() to be ignored, even after calling
4171 *) Change the default configuration reader to deal with last line not
4172 being properly terminated.
4175 *) Change X509_NAME_cmp() so it applies the special rules on handling
4176 DN values that are of type PrintableString, as well as RDNs of type
4177 emailAddress where the value has the type ia5String.
4178 [stefank@valicert.com via Richard Levitte]
4180 *) Add a SSL_SESS_CACHE_NO_INTERNAL_STORE flag to take over half
4181 the job SSL_SESS_CACHE_NO_INTERNAL_LOOKUP was inconsistently
4182 doing, define a new flag (SSL_SESS_CACHE_NO_INTERNAL) to be
4183 the bitwise-OR of the two for use by the majority of applications
4184 wanting this behaviour, and update the docs. The documented
4185 behaviour and actual behaviour were inconsistent and had been
4186 changing anyway, so this is more a bug-fix than a behavioural
4188 [Geoff Thorpe, diagnosed by Nadav Har'El]
4190 *) Don't impose a 16-byte length minimum on session IDs in ssl/s3_clnt.c
4191 (the SSL 3.0 and TLS 1.0 specifications allow any length up to 32 bytes).
4194 *) Fix initialization code race conditions in
4195 SSLv23_method(), SSLv23_client_method(), SSLv23_server_method(),
4196 SSLv2_method(), SSLv2_client_method(), SSLv2_server_method(),
4197 SSLv3_method(), SSLv3_client_method(), SSLv3_server_method(),
4198 TLSv1_method(), TLSv1_client_method(), TLSv1_server_method(),
4199 ssl2_get_cipher_by_char(),
4200 ssl3_get_cipher_by_char().
4201 [Patrick McCormick <patrick@tellme.com>, Bodo Moeller]
4203 *) Reorder cleanup sequence in SSL_CTX_free(): only remove the ex_data after
4204 the cached sessions are flushed, as the remove_cb() might use ex_data
4205 contents. Bug found by Sam Varshavchik <mrsam@courier-mta.com>
4206 (see [openssl.org #212]).
4207 [Geoff Thorpe, Lutz Jaenicke]
4209 *) Fix typo in OBJ_txt2obj which incorrectly passed the content
4210 length, instead of the encoding length to d2i_ASN1_OBJECT.
4213 Changes between 0.9.6f and 0.9.6g [9 Aug 2002]
4215 *) [In 0.9.6g-engine release:]
4216 Fix crypto/engine/vendor_defns/cswift.h for WIN32 (use '_stdcall').
4217 [Lynn Gazis <lgazis@rainbow.com>]
4219 Changes between 0.9.6e and 0.9.6f [8 Aug 2002]
4221 *) Fix ASN1 checks. Check for overflow by comparing with LONG_MAX
4222 and get fix the header length calculation.
4223 [Florian Weimer <Weimer@CERT.Uni-Stuttgart.DE>,
4224 Alon Kantor <alonk@checkpoint.com> (and others),
4227 *) Use proper error handling instead of 'assertions' in buffer
4228 overflow checks added in 0.9.6e. This prevents DoS (the
4229 assertions could call abort()).
4230 [Arne Ansper <arne@ats.cyber.ee>, Bodo Moeller]
4232 Changes between 0.9.6d and 0.9.6e [30 Jul 2002]
4234 *) Add various sanity checks to asn1_get_length() to reject
4235 the ASN1 length bytes if they exceed sizeof(long), will appear
4236 negative or the content length exceeds the length of the
4238 [Steve Henson, Adi Stav <stav@mercury.co.il>, James Yonan <jim@ntlp.com>]
4240 *) Fix cipher selection routines: ciphers without encryption had no flags
4241 for the cipher strength set and where therefore not handled correctly
4242 by the selection routines (PR #130).
4245 *) Fix EVP_dsa_sha macro.
4249 SSL_OP_DONT_INSERT_EMPTY_FRAGMENTS
4250 for disabling the SSL 3.0/TLS 1.0 CBC vulnerability countermeasure
4251 that was added in OpenSSL 0.9.6d.
4253 As the countermeasure turned out to be incompatible with some
4254 broken SSL implementations, the new option is part of SSL_OP_ALL.
4255 SSL_OP_ALL is usually employed when compatibility with weird SSL
4256 implementations is desired (e.g. '-bugs' option to 's_client' and
4257 's_server'), so the new option is automatically set in many
4261 *) Changes in security patch:
4263 Changes marked "(CHATS)" were sponsored by the Defense Advanced
4264 Research Projects Agency (DARPA) and Air Force Research Laboratory,
4265 Air Force Materiel Command, USAF, under agreement number
4268 *) Add various sanity checks to asn1_get_length() to reject
4269 the ASN1 length bytes if they exceed sizeof(long), will appear
4270 negative or the content length exceeds the length of the
4271 supplied buffer. (CVE-2002-0659)
4272 [Steve Henson, Adi Stav <stav@mercury.co.il>, James Yonan <jim@ntlp.com>]
4274 *) Assertions for various potential buffer overflows, not known to
4276 [Ben Laurie (CHATS)]
4278 *) Various temporary buffers to hold ASCII versions of integers were
4279 too small for 64 bit platforms. (CVE-2002-0655)
4280 [Matthew Byng-Maddick <mbm@aldigital.co.uk> and Ben Laurie (CHATS)>
4282 *) Remote buffer overflow in SSL3 protocol - an attacker could
4283 supply an oversized session ID to a client. (CVE-2002-0656)
4284 [Ben Laurie (CHATS)]
4286 *) Remote buffer overflow in SSL2 protocol - an attacker could
4287 supply an oversized client master key. (CVE-2002-0656)
4288 [Ben Laurie (CHATS)]
4290 Changes between 0.9.6c and 0.9.6d [9 May 2002]
4292 *) Fix crypto/asn1/a_sign.c so that 'parameters' is omitted (not
4293 encoded as NULL) with id-dsa-with-sha1.
4294 [Nils Larsch <nla@trustcenter.de>; problem pointed out by Bodo Moeller]
4296 *) Check various X509_...() return values in apps/req.c.
4297 [Nils Larsch <nla@trustcenter.de>]
4299 *) Fix BASE64 decode (EVP_DecodeUpdate) for data with CR/LF ended lines:
4300 an end-of-file condition would erronously be flagged, when the CRLF
4301 was just at the end of a processed block. The bug was discovered when
4302 processing data through a buffering memory BIO handing the data to a
4303 BASE64-decoding BIO. Bug fund and patch submitted by Pavel Tsekov
4304 <ptsekov@syntrex.com> and Nedelcho Stanev.
4307 *) Implement a countermeasure against a vulnerability recently found
4308 in CBC ciphersuites in SSL 3.0/TLS 1.0: Send an empty fragment
4309 before application data chunks to avoid the use of known IVs
4310 with data potentially chosen by the attacker.
4313 *) Fix length checks in ssl3_get_client_hello().
4316 *) TLS/SSL library bugfix: use s->s3->in_read_app_data differently
4317 to prevent ssl3_read_internal() from incorrectly assuming that
4318 ssl3_read_bytes() found application data while handshake
4319 processing was enabled when in fact s->s3->in_read_app_data was
4320 merely automatically cleared during the initial handshake.
4321 [Bodo Moeller; problem pointed out by Arne Ansper <arne@ats.cyber.ee>]
4323 *) Fix object definitions for Private and Enterprise: they were not
4324 recognized in their shortname (=lowercase) representation. Extend
4325 obj_dat.pl to issue an error when using undefined keywords instead
4326 of silently ignoring the problem (Svenning Sorensen
4327 <sss@sss.dnsalias.net>).
4330 *) Fix DH_generate_parameters() so that it works for 'non-standard'
4331 generators, i.e. generators other than 2 and 5. (Previously, the
4332 code did not properly initialise the 'add' and 'rem' values to
4333 BN_generate_prime().)
4335 In the new general case, we do not insist that 'generator' is
4336 actually a primitive root: This requirement is rather pointless;
4337 a generator of the order-q subgroup is just as good, if not
4341 *) Map new X509 verification errors to alerts. Discovered and submitted by
4342 Tom Wu <tom@arcot.com>.
4345 *) Fix ssl3_pending() (ssl/s3_lib.c) to prevent SSL_pending() from
4346 returning non-zero before the data has been completely received
4347 when using non-blocking I/O.
4348 [Bodo Moeller; problem pointed out by John Hughes]
4350 *) Some of the ciphers missed the strength entry (SSL_LOW etc).
4351 [Ben Laurie, Lutz Jaenicke]
4353 *) Fix bug in SSL_clear(): bad sessions were not removed (found by
4354 Yoram Zahavi <YoramZ@gilian.com>).
4357 *) Add information about CygWin 1.3 and on, and preserve proper
4358 configuration for the versions before that.
4359 [Corinna Vinschen <vinschen@redhat.com> and Richard Levitte]
4361 *) Make removal from session cache (SSL_CTX_remove_session()) more robust:
4362 check whether we deal with a copy of a session and do not delete from
4363 the cache in this case. Problem reported by "Izhar Shoshani Levi"
4364 <izhar@checkpoint.com>.
4367 *) Do not store session data into the internal session cache, if it
4368 is never intended to be looked up (SSL_SESS_CACHE_NO_INTERNAL_LOOKUP
4369 flag is set). Proposed by Aslam <aslam@funk.com>.
4372 *) Have ASN1_BIT_STRING_set_bit() really clear a bit when the requested
4376 *) [In 0.9.6d-engine release:]
4377 Fix a crashbug and a logic bug in hwcrhk_load_pubkey().
4378 [Toomas Kiisk <vix@cyber.ee> via Richard Levitte]
4380 *) Add the configuration target linux-s390x.
4381 [Neale Ferguson <Neale.Ferguson@SoftwareAG-USA.com> via Richard Levitte]
4383 *) The earlier bugfix for the SSL3_ST_SW_HELLO_REQ_C case of
4384 ssl3_accept (ssl/s3_srvr.c) incorrectly used a local flag
4385 variable as an indication that a ClientHello message has been
4386 received. As the flag value will be lost between multiple
4387 invocations of ssl3_accept when using non-blocking I/O, the
4388 function may not be aware that a handshake has actually taken
4389 place, thus preventing a new session from being added to the
4392 To avoid this problem, we now set s->new_session to 2 instead of
4393 using a local variable.
4394 [Lutz Jaenicke, Bodo Moeller]
4396 *) Bugfix: Return -1 from ssl3_get_server_done (ssl3/s3_clnt.c)
4397 if the SSL_R_LENGTH_MISMATCH error is detected.
4398 [Geoff Thorpe, Bodo Moeller]
4400 *) New 'shared_ldflag' column in Configure platform table.
4403 *) Fix EVP_CIPHER_mode macro.
4404 ["Dan S. Camper" <dan@bti.net>]
4406 *) Fix ssl3_read_bytes (ssl/s3_pkt.c): To ignore messages of unknown
4407 type, we must throw them away by setting rr->length to 0.
4408 [D P Chang <dpc@qualys.com>]
4410 Changes between 0.9.6b and 0.9.6c [21 dec 2001]
4412 *) Fix BN_rand_range bug pointed out by Dominikus Scherkl
4413 <Dominikus.Scherkl@biodata.com>. (The previous implementation
4414 worked incorrectly for those cases where range = 10..._2 and
4415 3*range is two bits longer than range.)
4418 *) Only add signing time to PKCS7 structures if it is not already
4422 *) Fix crypto/objects/objects.h: "ld-ce" should be "id-ce",
4423 OBJ_ld_ce should be OBJ_id_ce.
4424 Also some ip-pda OIDs in crypto/objects/objects.txt were
4425 incorrect (cf. RFC 3039).
4426 [Matt Cooper, Frederic Giudicelli, Bodo Moeller]
4428 *) Release CRYPTO_LOCK_DYNLOCK when CRYPTO_destroy_dynlockid()
4429 returns early because it has nothing to do.
4430 [Andy Schneider <andy.schneider@bjss.co.uk>]
4432 *) [In 0.9.6c-engine release:]
4433 Fix mutex callback return values in crypto/engine/hw_ncipher.c.
4434 [Andy Schneider <andy.schneider@bjss.co.uk>]
4436 *) [In 0.9.6c-engine release:]
4437 Add support for Cryptographic Appliance's keyserver technology.
4438 (Use engine 'keyclient')
4439 [Cryptographic Appliances and Geoff Thorpe]
4441 *) Add a configuration entry for OS/390 Unix. The C compiler 'c89'
4442 is called via tools/c89.sh because arguments have to be
4443 rearranged (all '-L' options must appear before the first object
4445 [Richard Shapiro <rshapiro@abinitio.com>]
4447 *) [In 0.9.6c-engine release:]
4448 Add support for Broadcom crypto accelerator cards, backported
4450 [Broadcom, Nalin Dahyabhai <nalin@redhat.com>, Mark Cox]
4452 *) [In 0.9.6c-engine release:]
4453 Add support for SureWare crypto accelerator cards from
4454 Baltimore Technologies. (Use engine 'sureware')
4455 [Baltimore Technologies and Mark Cox]
4457 *) [In 0.9.6c-engine release:]
4458 Add support for crypto accelerator cards from Accelerated
4459 Encryption Processing, www.aep.ie. (Use engine 'aep')
4460 [AEP Inc. and Mark Cox]
4462 *) Add a configuration entry for gcc on UnixWare.
4463 [Gary Benson <gbenson@redhat.com>]
4465 *) Change ssl/s2_clnt.c and ssl/s2_srvr.c so that received handshake
4466 messages are stored in a single piece (fixed-length part and
4467 variable-length part combined) and fix various bugs found on the way.
4470 *) Disable caching in BIO_gethostbyname(), directly use gethostbyname()
4471 instead. BIO_gethostbyname() does not know what timeouts are
4472 appropriate, so entries would stay in cache even when they have
4474 [Bodo Moeller; problem pointed out by Rich Salz <rsalz@zolera.com>
4476 *) Change ssl23_get_client_hello (ssl/s23_srvr.c) behaviour when
4477 faced with a pathologically small ClientHello fragment that does
4478 not contain client_version: Instead of aborting with an error,
4479 simply choose the highest available protocol version (i.e.,
4480 TLS 1.0 unless it is disabled). In practice, ClientHello
4481 messages are never sent like this, but this change gives us
4482 strictly correct behaviour at least for TLS.
4485 *) Fix SSL handshake functions and SSL_clear() such that SSL_clear()
4486 never resets s->method to s->ctx->method when called from within
4487 one of the SSL handshake functions.
4488 [Bodo Moeller; problem pointed out by Niko Baric]
4490 *) In ssl3_get_client_hello (ssl/s3_srvr.c), generate a fatal alert
4491 (sent using the client's version number) if client_version is
4492 smaller than the protocol version in use. Also change
4493 ssl23_get_client_hello (ssl/s23_srvr.c) to select TLS 1.0 if
4494 the client demanded SSL 3.0 but only TLS 1.0 is enabled; then
4495 the client will at least see that alert.
4498 *) Fix ssl3_get_message (ssl/s3_both.c) to handle message fragmentation
4502 *) Avoid infinite loop in ssl3_get_message (ssl/s3_both.c) if a
4503 client receives HelloRequest while in a handshake.
4504 [Bodo Moeller; bug noticed by Andy Schneider <andy.schneider@bjss.co.uk>]
4506 *) Bugfix in ssl3_accept (ssl/s3_srvr.c): Case SSL3_ST_SW_HELLO_REQ_C
4507 should end in 'break', not 'goto end' which circuments various
4508 cleanups done in state SSL_ST_OK. But session related stuff
4509 must be disabled for SSL_ST_OK in the case that we just sent a
4512 Also avoid some overhead by not calling ssl_init_wbio_buffer()
4513 before just sending a HelloRequest.
4514 [Bodo Moeller, Eric Rescorla <ekr@rtfm.com>]
4516 *) Fix ssl/s3_enc.c, ssl/t1_enc.c and ssl/s3_pkt.c so that we don't
4517 reveal whether illegal block cipher padding was found or a MAC
4518 verification error occured. (Neither SSLerr() codes nor alerts
4519 are directly visible to potential attackers, but the information
4520 may leak via logfiles.)
4522 Similar changes are not required for the SSL 2.0 implementation
4523 because the number of padding bytes is sent in clear for SSL 2.0,
4524 and the extra bytes are just ignored. However ssl/s2_pkt.c
4525 failed to verify that the purported number of padding bytes is in
4529 *) Add OpenUNIX-8 support including shared libraries
4530 (Boyd Lynn Gerber <gerberb@zenez.com>).
4533 *) Improve RSA_padding_check_PKCS1_OAEP() check again to avoid
4534 'wristwatch attack' using huge encoding parameters (cf.
4535 James H. Manger's CRYPTO 2001 paper). Note that the
4536 RSA_PKCS1_OAEP_PADDING case of RSA_private_decrypt() does not use
4537 encoding parameters and hence was not vulnerable.
4540 *) BN_sqr() bug fix.
4541 [Ulf Möller, reported by Jim Ellis <jim.ellis@cavium.com>]
4543 *) Rabin-Miller test analyses assume uniformly distributed witnesses,
4544 so use BN_pseudo_rand_range() instead of using BN_pseudo_rand()
4545 followed by modular reduction.
4546 [Bodo Moeller; pointed out by Adam Young <AYoung1@NCSUS.JNJ.COM>]
4548 *) Add BN_pseudo_rand_range() with obvious functionality: BN_rand_range()
4549 equivalent based on BN_pseudo_rand() instead of BN_rand().
4552 *) s3_srvr.c: allow sending of large client certificate lists (> 16 kB).
4553 This function was broken, as the check for a new client hello message
4554 to handle SGC did not allow these large messages.
4555 (Tracked down by "Douglas E. Engert" <deengert@anl.gov>.)
4558 *) Add alert descriptions for TLSv1 to SSL_alert_desc_string[_long]().
4561 *) Fix buggy behaviour of BIO_get_num_renegotiates() and BIO_ctrl()
4562 for BIO_C_GET_WRITE_BUF_SIZE ("Stephen Hinton" <shinton@netopia.com>).
4565 *) Rework the configuration and shared library support for Tru64 Unix.
4566 The configuration part makes use of modern compiler features and
4567 still retains old compiler behavior for those that run older versions
4568 of the OS. The shared library support part includes a variant that
4569 uses the RPATH feature, and is available through the special
4570 configuration target "alpha-cc-rpath", which will never be selected
4572 [Tim Mooney <mooney@dogbert.cc.ndsu.NoDak.edu> via Richard Levitte]
4574 *) In ssl3_get_key_exchange (ssl/s3_clnt.c), call ssl3_get_message()
4575 with the same message size as in ssl3_get_certificate_request().
4576 Otherwise, if no ServerKeyExchange message occurs, CertificateRequest
4577 messages might inadvertently be reject as too long.
4578 [Petr Lampa <lampa@fee.vutbr.cz>]
4580 *) Enhanced support for IA-64 Unix platforms (well, Linux and HP-UX).
4583 *) Modified SSL library such that the verify_callback that has been set
4584 specificly for an SSL object with SSL_set_verify() is actually being
4585 used. Before the change, a verify_callback set with this function was
4586 ignored and the verify_callback() set in the SSL_CTX at the time of
4587 the call was used. New function X509_STORE_CTX_set_verify_cb() introduced
4588 to allow the necessary settings.
4591 *) Initialize static variable in crypto/dsa/dsa_lib.c and crypto/dh/dh_lib.c
4592 explicitly to NULL, as at least on Solaris 8 this seems not always to be
4593 done automatically (in contradiction to the requirements of the C
4594 standard). This made problems when used from OpenSSH.
4597 *) In OpenSSL 0.9.6a and 0.9.6b, crypto/dh/dh_key.c ignored
4598 dh->length and always used
4600 BN_rand_range(priv_key, dh->p).
4602 BN_rand_range() is not necessary for Diffie-Hellman, and this
4603 specific range makes Diffie-Hellman unnecessarily inefficient if
4604 dh->length (recommended exponent length) is much smaller than the
4605 length of dh->p. We could use BN_rand_range() if the order of
4606 the subgroup was stored in the DH structure, but we only have
4611 BN_rand(priv_key, l, ...)
4613 where 'l' is dh->length if this is defined, or BN_num_bits(dh->p)-1
4619 RSA_eay_public_encrypt
4620 RSA_eay_private_decrypt
4621 RSA_eay_private_encrypt (signing)
4622 RSA_eay_public_decrypt (signature verification)
4624 (default implementations for RSA_public_encrypt,
4625 RSA_private_decrypt, RSA_private_encrypt, RSA_public_decrypt),
4626 always reject numbers >= n.
4629 *) In crypto/rand/md_rand.c, use a new short-time lock CRYPTO_LOCK_RAND2
4630 to synchronize access to 'locking_thread'. This is necessary on
4631 systems where access to 'locking_thread' (an 'unsigned long'
4632 variable) is not atomic.
4635 *) In crypto/rand/md_rand.c, set 'locking_thread' to current thread's ID
4636 *before* setting the 'crypto_lock_rand' flag. The previous code had
4637 a race condition if 0 is a valid thread ID.
4638 [Travis Vitek <vitek@roguewave.com>]
4640 *) Add support for shared libraries under Irix.
4641 [Albert Chin-A-Young <china@thewrittenword.com>]
4643 *) Add configuration option to build on Linux on both big-endian and
4645 [Ralf Baechle <ralf@uni-koblenz.de>]
4647 *) Add the possibility to create shared libraries on HP-UX.
4650 Changes between 0.9.6a and 0.9.6b [9 Jul 2001]
4652 *) Change ssleay_rand_bytes (crypto/rand/md_rand.c)
4653 to avoid a SSLeay/OpenSSL PRNG weakness pointed out by
4654 Markku-Juhani O. Saarinen <markku-juhani.saarinen@nokia.com>:
4655 PRNG state recovery was possible based on the output of
4656 one PRNG request appropriately sized to gain knowledge on
4657 'md' followed by enough consecutive 1-byte PRNG requests
4658 to traverse all of 'state'.
4660 1. When updating 'md_local' (the current thread's copy of 'md')
4661 during PRNG output generation, hash all of the previous
4662 'md_local' value, not just the half used for PRNG output.
4664 2. Make the number of bytes from 'state' included into the hash
4665 independent from the number of PRNG bytes requested.
4667 The first measure alone would be sufficient to avoid
4668 Markku-Juhani's attack. (Actually it had never occurred
4669 to me that the half of 'md_local' used for chaining was the
4670 half from which PRNG output bytes were taken -- I had always
4671 assumed that the secret half would be used.) The second
4672 measure makes sure that additional data from 'state' is never
4673 mixed into 'md_local' in small portions; this heuristically
4674 further strengthens the PRNG.
4677 *) Fix crypto/bn/asm/mips3.s.
4680 *) When only the key is given to "enc", the IV is undefined. Print out
4681 an error message in this case.
4684 *) Handle special case when X509_NAME is empty in X509 printing routines.
4687 *) In dsa_do_verify (crypto/dsa/dsa_ossl.c), verify that r and s are
4688 positive and less than q.
4691 *) Don't change *pointer in CRYPTO_add_lock() is add_lock_callback is
4692 used: it isn't thread safe and the add_lock_callback should handle
4694 [Paul Rose <Paul.Rose@bridge.com>]
4696 *) Verify that incoming data obeys the block size in
4697 ssl3_enc (ssl/s3_enc.c) and tls1_enc (ssl/t1_enc.c).
4701 [Ulf Möller, Bodo Möller]
4703 *) The countermeasure against Bleichbacher's attack on PKCS #1 v1.5
4704 RSA encryption was accidentally removed in s3_srvr.c in OpenSSL 0.9.5
4705 when fixing the server behaviour for backwards-compatible 'client
4706 hello' messages. (Note that the attack is impractical against
4707 SSL 3.0 and TLS 1.0 anyway because length and version checking
4708 means that the probability of guessing a valid ciphertext is
4709 around 2^-40; see section 5 in Bleichenbacher's CRYPTO '98
4712 Before 0.9.5, the countermeasure (hide the error by generating a
4713 random 'decryption result') did not work properly because
4714 ERR_clear_error() was missing, meaning that SSL_get_error() would
4715 detect the supposedly ignored error.
4717 Both problems are now fixed.
4720 *) In crypto/bio/bf_buff.c, increase DEFAULT_BUFFER_SIZE to 4096
4721 (previously it was 1024).
4724 *) Fix for compatibility mode trust settings: ignore trust settings
4725 unless some valid trust or reject settings are present.
4728 *) Fix for blowfish EVP: its a variable length cipher.
4731 *) Fix various bugs related to DSA S/MIME verification. Handle missing
4732 parameters in DSA public key structures and return an error in the
4733 DSA routines if parameters are absent.
4736 *) In versions up to 0.9.6, RAND_file_name() resorted to file ".rnd"
4737 in the current directory if neither $RANDFILE nor $HOME was set.
4738 RAND_file_name() in 0.9.6a returned NULL in this case. This has
4739 caused some confusion to Windows users who haven't defined $HOME.
4740 Thus RAND_file_name() is changed again: e_os.h can define a
4741 DEFAULT_HOME, which will be used if $HOME is not set.
4742 For Windows, we use "C:"; on other platforms, we still require
4743 environment variables.
4745 *) Move 'if (!initialized) RAND_poll()' into regions protected by
4746 CRYPTO_LOCK_RAND. This is not strictly necessary, but avoids
4747 having multiple threads call RAND_poll() concurrently.
4750 *) In crypto/rand/md_rand.c, replace 'add_do_not_lock' flag by a
4751 combination of a flag and a thread ID variable.
4752 Otherwise while one thread is in ssleay_rand_bytes (which sets the
4753 flag), *other* threads can enter ssleay_add_bytes without obeying
4754 the CRYPTO_LOCK_RAND lock (and may even illegally release the lock
4755 that they do not hold after the first thread unsets add_do_not_lock).
4758 *) Change bctest again: '-x' expressions are not available in all
4762 Changes between 0.9.6 and 0.9.6a [5 Apr 2001]
4764 *) Fix a couple of memory leaks in PKCS7_dataDecode()
4765 [Steve Henson, reported by Heyun Zheng <hzheng@atdsprint.com>]
4767 *) Change Configure and Makefiles to provide EXE_EXT, which will contain
4768 the default extension for executables, if any. Also, make the perl
4769 scripts that use symlink() to test if it really exists and use "cp"
4770 if it doesn't. All this made OpenSSL compilable and installable in
4774 *) Fix for asn1_GetSequence() for indefinite length constructed data.
4775 If SEQUENCE is length is indefinite just set c->slen to the total
4776 amount of data available.
4777 [Steve Henson, reported by shige@FreeBSD.org]
4778 [This change does not apply to 0.9.7.]
4780 *) Change bctest to avoid here-documents inside command substitution
4781 (workaround for FreeBSD /bin/sh bug).
4782 For compatibility with Ultrix, avoid shell functions (introduced
4783 in the bctest version that searches along $PATH).
4786 *) Rename 'des_encrypt' to 'des_encrypt1'. This avoids the clashes
4787 with des_encrypt() defined on some operating systems, like Solaris
4791 *) Check the result of RSA-CRT (see D. Boneh, R. DeMillo, R. Lipton:
4792 On the Importance of Eliminating Errors in Cryptographic
4793 Computations, J. Cryptology 14 (2001) 2, 101-119,
4794 http://theory.stanford.edu/~dabo/papers/faults.ps.gz).
4797 *) MIPS assembler BIGNUM division bug fix.
4800 *) Disabled incorrect Alpha assembler code.
4803 *) Fix PKCS#7 decode routines so they correctly update the length
4804 after reading an EOC for the EXPLICIT tag.
4806 [This change does not apply to 0.9.7.]
4808 *) Fix bug in PKCS#12 key generation routines. This was triggered
4809 if a 3DES key was generated with a 0 initial byte. Include
4810 PKCS12_BROKEN_KEYGEN compilation option to retain the old
4811 (but broken) behaviour.
4814 *) Enhance bctest to search for a working bc along $PATH and print
4816 [Tim Rice <tim@multitalents.net> via Richard Levitte]
4818 *) Fix memory leaks in err.c: free err_data string if necessary;
4819 don't write to the wrong index in ERR_set_error_data.
4822 *) Implement ssl23_peek (analogous to ssl23_read), which previously
4826 *) Replace rdtsc with _emit statements for VC++ version 5.
4827 [Jeremy Cooper <jeremy@baymoo.org>]
4829 *) Make it possible to reuse SSLv2 sessions.
4832 *) In copy_email() check for >= 0 as a return value for
4833 X509_NAME_get_index_by_NID() since 0 is a valid index.
4834 [Steve Henson reported by Massimiliano Pala <madwolf@opensca.org>]
4836 *) Avoid coredump with unsupported or invalid public keys by checking if
4837 X509_get_pubkey() fails in PKCS7_verify(). Fix memory leak when
4838 PKCS7_verify() fails with non detached data.
4841 *) Don't use getenv in library functions when run as setuid/setgid.
4842 New function OPENSSL_issetugid().
4845 *) Avoid false positives in memory leak detection code (crypto/mem_dbg.c)
4846 due to incorrect handling of multi-threading:
4848 1. Fix timing glitch in the MemCheck_off() portion of CRYPTO_mem_ctrl().
4850 2. Fix logical glitch in is_MemCheck_on() aka CRYPTO_is_mem_check_on().
4852 3. Count how many times MemCheck_off() has been called so that
4853 nested use can be treated correctly. This also avoids
4854 inband-signalling in the previous code (which relied on the
4855 assumption that thread ID 0 is impossible).
4858 *) Add "-rand" option also to s_client and s_server.
4861 *) Fix CPU detection on Irix 6.x.
4862 [Kurt Hockenbury <khockenb@stevens-tech.edu> and
4863 "Bruce W. Forsberg" <bruce.forsberg@baesystems.com>]
4865 *) Fix X509_NAME bug which produced incorrect encoding if X509_NAME
4868 [This change does not apply to 0.9.7.]
4870 *) Use the cached encoding of an X509_NAME structure rather than
4871 copying it. This is apparently the reason for the libsafe "errors"
4872 but the code is actually correct.
4875 *) Add new function BN_rand_range(), and fix DSA_sign_setup() to prevent
4876 Bleichenbacher's DSA attack.
4877 Extend BN_[pseudo_]rand: As before, top=1 forces the highest two bits
4878 to be set and top=0 forces the highest bit to be set; top=-1 is new
4879 and leaves the highest bit random.
4880 [Ulf Moeller, Bodo Moeller]
4882 *) In the NCONF_...-based implementations for CONF_... queries
4883 (crypto/conf/conf_lib.c), if the input LHASH is NULL, avoid using
4884 a temporary CONF structure with the data component set to NULL
4885 (which gives segmentation faults in lh_retrieve).
4886 Instead, use NULL for the CONF pointer in CONF_get_string and
4887 CONF_get_number (which may use environment variables) and directly
4888 return NULL from CONF_get_section.
4891 *) Fix potential buffer overrun for EBCDIC.
4894 *) Tolerate nonRepudiation as being valid for S/MIME signing and certSign
4895 keyUsage if basicConstraints absent for a CA.
4898 *) Make SMIME_write_PKCS7() write mail header values with a format that
4899 is more generally accepted (no spaces before the semicolon), since
4900 some programs can't parse those values properly otherwise. Also make
4901 sure BIO's that break lines after each write do not create invalid
4905 *) Make the CRL encoding routines work with empty SEQUENCE OF. The
4906 macros previously used would not encode an empty SEQUENCE OF
4907 and break the signature.
4909 [This change does not apply to 0.9.7.]
4911 *) Zero the premaster secret after deriving the master secret in
4915 *) Add some EVP_add_digest_alias registrations (as found in
4916 OpenSSL_add_all_digests()) to SSL_library_init()
4917 aka OpenSSL_add_ssl_algorithms(). This provides improved
4918 compatibility with peers using X.509 certificates
4919 with unconventional AlgorithmIdentifier OIDs.
4922 *) Fix for Irix with NO_ASM.
4923 ["Bruce W. Forsberg" <bruce.forsberg@baesystems.com>]
4925 *) ./config script fixes.
4926 [Ulf Moeller, Richard Levitte]
4928 *) Fix 'openssl passwd -1'.
4931 *) Change PKCS12_key_gen_asc() so it can cope with non null
4932 terminated strings whose length is passed in the passlen
4933 parameter, for example from PEM callbacks. This was done
4934 by adding an extra length parameter to asc2uni().
4935 [Steve Henson, reported by <oddissey@samsung.co.kr>]
4937 *) Fix C code generated by 'openssl dsaparam -C': If a BN_bin2bn
4938 call failed, free the DSA structure.
4941 *) Fix to uni2asc() to cope with zero length Unicode strings.
4942 These are present in some PKCS#12 files.
4945 *) Increase s2->wbuf allocation by one byte in ssl2_new (ssl/s2_lib.c).
4946 Otherwise do_ssl_write (ssl/s2_pkt.c) will write beyond buffer limits
4947 when writing a 32767 byte record.
4948 [Bodo Moeller; problem reported by Eric Day <eday@concentric.net>]
4950 *) In RSA_eay_public_{en,ed}crypt and RSA_eay_mod_exp (rsa_eay.c),
4951 obtain lock CRYPTO_LOCK_RSA before setting rsa->_method_mod_{n,p,q}.
4953 (RSA objects have a reference count access to which is protected
4954 by CRYPTO_LOCK_RSA [see rsa_lib.c, s3_srvr.c, ssl_cert.c, ssl_rsa.c],
4955 so they are meant to be shared between threads.)
4956 [Bodo Moeller, Geoff Thorpe; original patch submitted by
4957 "Reddie, Steven" <Steven.Reddie@ca.com>]
4959 *) Fix a deadlock in CRYPTO_mem_leaks().
4962 *) Use better test patterns in bntest.
4965 *) rand_win.c fix for Borland C.
4968 *) BN_rshift bugfix for n == 0.
4971 *) Add a 'bctest' script that checks for some known 'bc' bugs
4972 so that 'make test' does not abort just because 'bc' is broken.
4975 *) Store verify_result within SSL_SESSION also for client side to
4976 avoid potential security hole. (Re-used sessions on the client side
4977 always resulted in verify_result==X509_V_OK, not using the original
4978 result of the server certificate verification.)
4981 *) Fix ssl3_pending: If the record in s->s3->rrec is not of type
4982 SSL3_RT_APPLICATION_DATA, return 0.
4983 Similarly, change ssl2_pending to return 0 if SSL_in_init(s) is true.
4987 Both ssl2_peek and ssl3_peek, which were totally broken in earlier
4988 releases, have been re-implemented by renaming the previous
4989 implementations of ssl2_read and ssl3_read to ssl2_read_internal
4990 and ssl3_read_internal, respectively, and adding 'peek' parameters
4991 to them. The new ssl[23]_{read,peek} functions are calls to
4992 ssl[23]_read_internal with the 'peek' flag set appropriately.
4993 A 'peek' parameter has also been added to ssl3_read_bytes, which
4994 does the actual work for ssl3_read_internal.
4997 *) Initialise "ex_data" member of RSA/DSA/DH structures prior to calling
4998 the method-specific "init()" handler. Also clean up ex_data after
4999 calling the method-specific "finish()" handler. Previously, this was
5000 happening the other way round.
5003 *) Increase BN_CTX_NUM (the number of BIGNUMs in a BN_CTX) to 16.
5004 The previous value, 12, was not always sufficient for BN_mod_exp().
5007 *) Make sure that shared libraries get the internal name engine with
5008 the full version number and not just 0. This should mark the
5009 shared libraries as not backward compatible. Of course, this should
5010 be changed again when we can guarantee backward binary compatibility.
5013 *) Fix typo in get_cert_by_subject() in by_dir.c
5014 [Jean-Marc Desperrier <jean-marc.desperrier@certplus.com>]
5016 *) Rework the system to generate shared libraries:
5018 - Make note of the expected extension for the shared libraries and
5019 if there is a need for symbolic links from for example libcrypto.so.0
5020 to libcrypto.so.0.9.7. There is extended info in Configure for
5023 - Make as few rebuilds of the shared libraries as possible.
5025 - Still avoid linking the OpenSSL programs with the shared libraries.
5027 - When installing, install the shared libraries separately from the
5031 *) Fix SSL_CTX_set_read_ahead macro to actually use its argument.
5033 Copy SSL_CTX's read_ahead flag to SSL object directly in SSL_new
5034 and not in SSL_clear because the latter is also used by the
5035 accept/connect functions; previously, the settings made by
5036 SSL_set_read_ahead would be lost during the handshake.
5037 [Bodo Moeller; problems reported by Anders Gertz <gertz@epact.se>]
5039 *) Correct util/mkdef.pl to be selective about disabled algorithms.
5040 Previously, it would create entries for disableed algorithms no
5044 *) Added several new manual pages for SSL_* function.
5047 Changes between 0.9.5a and 0.9.6 [24 Sep 2000]
5049 *) In ssl23_get_client_hello, generate an error message when faced
5050 with an initial SSL 3.0/TLS record that is too small to contain the
5051 first two bytes of the ClientHello message, i.e. client_version.
5052 (Note that this is a pathologic case that probably has never happened
5053 in real life.) The previous approach was to use the version number
5054 from the record header as a substitute; but our protocol choice
5055 should not depend on that one because it is not authenticated
5056 by the Finished messages.
5059 *) More robust randomness gathering functions for Windows.
5060 [Jeffrey Altman <jaltman@columbia.edu>]
5062 *) For compatibility reasons if the flag X509_V_FLAG_ISSUER_CHECK is
5063 not set then we don't setup the error code for issuer check errors
5064 to avoid possibly overwriting other errors which the callback does
5065 handle. If an application does set the flag then we assume it knows
5066 what it is doing and can handle the new informational codes
5070 *) Fix for a nasty bug in ASN1_TYPE handling. ASN1_TYPE is used for
5071 a general "ANY" type, as such it should be able to decode anything
5072 including tagged types. However it didn't check the class so it would
5073 wrongly interpret tagged types in the same way as their universal
5074 counterpart and unknown types were just rejected. Changed so that the
5075 tagged and unknown types are handled in the same way as a SEQUENCE:
5076 that is the encoding is stored intact. There is also a new type
5077 "V_ASN1_OTHER" which is used when the class is not universal, in this
5078 case we have no idea what the actual type is so we just lump them all
5082 *) On VMS, stdout may very well lead to a file that is written to
5083 in a record-oriented fashion. That means that every write() will
5084 write a separate record, which will be read separately by the
5085 programs trying to read from it. This can be very confusing.
5087 The solution is to put a BIO filter in the way that will buffer
5088 text until a linefeed is reached, and then write everything a
5089 line at a time, so every record written will be an actual line,
5090 not chunks of lines and not (usually doesn't happen, but I've
5091 seen it once) several lines in one record. BIO_f_linebuffer() is
5094 Currently, it's a VMS-only method, because that's where it has
5095 been tested well enough.
5098 *) Remove 'optimized' squaring variant in BN_mod_mul_montgomery,
5099 it can return incorrect results.
5100 (Note: The buggy variant was not enabled in OpenSSL 0.9.5a,
5101 but it was in 0.9.6-beta[12].)
5104 *) Disable the check for content being present when verifying detached
5105 signatures in pk7_smime.c. Some versions of Netscape (wrongly)
5106 include zero length content when signing messages.
5109 *) New BIO_shutdown_wr macro, which invokes the BIO_C_SHUTDOWN_WR
5110 BIO_ctrl (for BIO pairs).
5113 *) Add DSO method for VMS.
5116 *) Bug fix: Montgomery multiplication could produce results with the
5120 *) Add RPM specification openssl.spec and modify it to build three
5121 packages. The default package contains applications, application
5122 documentation and run-time libraries. The devel package contains
5123 include files, static libraries and function documentation. The
5124 doc package contains the contents of the doc directory. The original
5125 openssl.spec was provided by Damien Miller <djm@mindrot.org>.
5128 *) Add a large number of documentation files for many SSL routines.
5129 [Lutz Jaenicke <Lutz.Jaenicke@aet.TU-Cottbus.DE>]
5131 *) Add a configuration entry for Sony News 4.
5132 [NAKAJI Hiroyuki <nakaji@tutrp.tut.ac.jp>]
5134 *) Don't set the two most significant bits to one when generating a
5135 random number < q in the DSA library.
5138 *) New SSL API mode 'SSL_MODE_AUTO_RETRY'. This disables the default
5139 behaviour that SSL_read may result in SSL_ERROR_WANT_READ (even if
5140 the underlying transport is blocking) if a handshake took place.
5141 (The default behaviour is needed by applications such as s_client
5142 and s_server that use select() to determine when to use SSL_read;
5143 but for applications that know in advance when to expect data, it
5144 just makes things more complicated.)
5147 *) Add RAND_egd_bytes(), which gives control over the number of bytes read
5151 *) Add a few more EBCDIC conditionals that make `req' and `x509'
5152 work better on such systems.
5153 [Martin Kraemer <Martin.Kraemer@MchP.Siemens.De>]
5155 *) Add two demo programs for PKCS12_parse() and PKCS12_create().
5156 Update PKCS12_parse() so it copies the friendlyName and the
5157 keyid to the certificates aux info.
5160 *) Fix bug in PKCS7_verify() which caused an infinite loop
5161 if there was more than one signature.
5162 [Sven Uszpelkat <su@celocom.de>]
5164 *) Major change in util/mkdef.pl to include extra information
5165 about each symbol, as well as presentig variables as well
5166 as functions. This change means that there's n more need
5167 to rebuild the .num files when some algorithms are excluded.
5170 *) Allow the verify time to be set by an application,
5171 rather than always using the current time.
5174 *) Phase 2 verify code reorganisation. The certificate
5175 verify code now looks up an issuer certificate by a
5176 number of criteria: subject name, authority key id
5177 and key usage. It also verifies self signed certificates
5178 by the same criteria. The main comparison function is
5179 X509_check_issued() which performs these checks.
5181 Lot of changes were necessary in order to support this
5182 without completely rewriting the lookup code.
5184 Authority and subject key identifier are now cached.
5186 The LHASH 'certs' is X509_STORE has now been replaced
5187 by a STACK_OF(X509_OBJECT). This is mainly because an
5188 LHASH can't store or retrieve multiple objects with
5189 the same hash value.
5191 As a result various functions (which were all internal
5192 use only) have changed to handle the new X509_STORE
5193 structure. This will break anything that messed round
5194 with X509_STORE internally.
5196 The functions X509_STORE_add_cert() now checks for an
5197 exact match, rather than just subject name.
5199 The X509_STORE API doesn't directly support the retrieval
5200 of multiple certificates matching a given criteria, however
5201 this can be worked round by performing a lookup first
5202 (which will fill the cache with candidate certificates)
5203 and then examining the cache for matches. This is probably
5204 the best we can do without throwing out X509_LOOKUP
5205 entirely (maybe later...).
5207 The X509_VERIFY_CTX structure has been enhanced considerably.
5209 All certificate lookup operations now go via a get_issuer()
5210 callback. Although this currently uses an X509_STORE it
5211 can be replaced by custom lookups. This is a simple way
5212 to bypass the X509_STORE hackery necessary to make this
5213 work and makes it possible to use more efficient techniques
5214 in future. A very simple version which uses a simple
5215 STACK for its trusted certificate store is also provided
5216 using X509_STORE_CTX_trusted_stack().
5218 The verify_cb() and verify() callbacks now have equivalents
5219 in the X509_STORE_CTX structure.
5221 X509_STORE_CTX also has a 'flags' field which can be used
5222 to customise the verify behaviour.
5225 *) Add new PKCS#7 signing option PKCS7_NOSMIMECAP which
5226 excludes S/MIME capabilities.
5229 *) When a certificate request is read in keep a copy of the
5230 original encoding of the signed data and use it when outputing
5231 again. Signatures then use the original encoding rather than
5232 a decoded, encoded version which may cause problems if the
5233 request is improperly encoded.
5236 *) For consistency with other BIO_puts implementations, call
5237 buffer_write(b, ...) directly in buffer_puts instead of calling
5240 In BIO_puts, increment b->num_write as in BIO_write.
5241 [Peter.Sylvester@EdelWeb.fr]
5243 *) Fix BN_mul_word for the case where the word is 0. (We have to use
5244 BN_zero, we may not return a BIGNUM with an array consisting of
5248 *) Avoid calling abort() from within the library when problems are
5249 detected, except if preprocessor symbols have been defined
5250 (such as REF_CHECK, BN_DEBUG etc.).
5253 *) New openssl application 'rsautl'. This utility can be
5254 used for low level RSA operations. DER public key
5255 BIO/fp routines also added.
5258 *) New Configure entry and patches for compiling on QNX 4.
5259 [Andreas Schneider <andreas@ds3.etech.fh-hamburg.de>]
5261 *) A demo state-machine implementation was sponsored by
5262 Nuron (http://www.nuron.com/) and is now available in
5263 demos/state_machine.
5266 *) New options added to the 'dgst' utility for signature
5267 generation and verification.
5270 *) Unrecognized PKCS#7 content types are now handled via a
5271 catch all ASN1_TYPE structure. This allows unsupported
5272 types to be stored as a "blob" and an application can
5273 encode and decode it manually.
5276 *) Fix various signed/unsigned issues to make a_strex.c
5278 [Oscar Jacobsson <oscar.jacobsson@celocom.com>]
5280 *) ASN1 fixes. i2d_ASN1_OBJECT was not returning the correct
5281 length if passed a buffer. ASN1_INTEGER_to_BN failed
5282 if passed a NULL BN and its argument was negative.
5283 [Steve Henson, pointed out by Sven Heiberg <sven@tartu.cyber.ee>]
5285 *) Modification to PKCS#7 encoding routines to output definite
5286 length encoding. Since currently the whole structures are in
5287 memory there's not real point in using indefinite length
5288 constructed encoding. However if OpenSSL is compiled with
5289 the flag PKCS7_INDEFINITE_ENCODING the old form is used.
5292 *) Added BIO_vprintf() and BIO_vsnprintf().
5295 *) Added more prefixes to parse for in the the strings written
5296 through a logging bio, to cover all the levels that are available
5297 through syslog. The prefixes are now:
5299 PANIC, EMERG, EMR => LOG_EMERG
5300 ALERT, ALR => LOG_ALERT
5301 CRIT, CRI => LOG_CRIT
5302 ERROR, ERR => LOG_ERR
5303 WARNING, WARN, WAR => LOG_WARNING
5304 NOTICE, NOTE, NOT => LOG_NOTICE
5305 INFO, INF => LOG_INFO
5306 DEBUG, DBG => LOG_DEBUG
5308 and as before, if none of those prefixes are present at the
5309 beginning of the string, LOG_ERR is chosen.
5311 On Win32, the LOG_* levels are mapped according to this:
5313 LOG_EMERG, LOG_ALERT, LOG_CRIT, LOG_ERR => EVENTLOG_ERROR_TYPE
5314 LOG_WARNING => EVENTLOG_WARNING_TYPE
5315 LOG_NOTICE, LOG_INFO, LOG_DEBUG => EVENTLOG_INFORMATION_TYPE
5319 *) Made it possible to reconfigure with just the configuration
5320 argument "reconf" or "reconfigure". The command line arguments
5321 are stored in Makefile.ssl in the variable CONFIGURE_ARGS,
5322 and are retrieved from there when reconfiguring.
5326 [Assar Westerlund <assar@sics.se>, Richard Levitte]
5328 *) Add the arguments -CAfile and -CApath to the pkcs12 utility.
5331 *) The obj_dat.pl script was messing up the sorting of object
5332 names. The reason was that it compared the quoted version
5333 of strings as a result "OCSP" > "OCSP Signing" because
5334 " > SPACE. Changed script to store unquoted versions of
5335 names and add quotes on output. It was also omitting some
5336 names from the lookup table if they were given a default
5337 value (that is if SN is missing it is given the same
5338 value as LN and vice versa), these are now added on the
5339 grounds that if an object has a name we should be able to
5340 look it up. Finally added warning output when duplicate
5341 short or long names are found.
5344 *) Changes needed for Tandem NSK.
5345 [Scott Uroff <scott@xypro.com>]
5347 *) Fix SSL 2.0 rollback checking: Due to an off-by-one error in
5348 RSA_padding_check_SSLv23(), special padding was never detected
5349 and thus the SSL 3.0/TLS 1.0 countermeasure against protocol
5350 version rollback attacks was not effective.
5352 In s23_clnt.c, don't use special rollback-attack detection padding
5353 (RSA_SSLV23_PADDING) if SSL 2.0 is the only protocol enabled in the
5354 client; similarly, in s23_srvr.c, don't do the rollback check if
5355 SSL 2.0 is the only protocol enabled in the server.
5358 *) Make it possible to get hexdumps of unprintable data with 'openssl
5359 asn1parse'. By implication, the functions ASN1_parse_dump() and
5360 BIO_dump_indent() are added.
5363 *) New functions ASN1_STRING_print_ex() and X509_NAME_print_ex()
5364 these print out strings and name structures based on various
5365 flags including RFC2253 support and proper handling of
5366 multibyte characters. Added options to the 'x509' utility
5367 to allow the various flags to be set.
5370 *) Various fixes to use ASN1_TIME instead of ASN1_UTCTIME.
5371 Also change the functions X509_cmp_current_time() and
5372 X509_gmtime_adj() work with an ASN1_TIME structure,
5373 this will enable certificates using GeneralizedTime in validity
5374 dates to be checked.
5377 *) Make the NEG_PUBKEY_BUG code (which tolerates invalid
5378 negative public key encodings) on by default,
5379 NO_NEG_PUBKEY_BUG can be set to disable it.
5382 *) New function c2i_ASN1_OBJECT() which acts on ASN1_OBJECT
5383 content octets. An i2c_ASN1_OBJECT is unnecessary because
5384 the encoding can be trivially obtained from the structure.
5387 *) crypto/err.c locking bugfix: Use write locks (CRYPTO_w_[un]lock),
5388 not read locks (CRYPTO_r_[un]lock).
5391 *) A first attempt at creating official support for shared
5392 libraries through configuration. I've kept it so the
5393 default is static libraries only, and the OpenSSL programs
5394 are always statically linked for now, but there are
5395 preparations for dynamic linking in place.
5396 This has been tested on Linux and Tru64.
5399 *) Randomness polling function for Win9x, as described in:
5400 Peter Gutmann, Software Generation of Practically Strong
5404 *) Fix so PRNG is seeded in req if using an already existing
5408 *) New options to smime application. -inform and -outform
5409 allow alternative formats for the S/MIME message including
5410 PEM and DER. The -content option allows the content to be
5411 specified separately. This should allow things like Netscape
5412 form signing output easier to verify.
5415 *) Fix the ASN1 encoding of tags using the 'long form'.
5418 *) New ASN1 functions, i2c_* and c2i_* for INTEGER and BIT
5419 STRING types. These convert content octets to and from the
5420 underlying type. The actual tag and length octets are
5421 already assumed to have been read in and checked. These
5422 are needed because all other string types have virtually
5423 identical handling apart from the tag. By having versions
5424 of the ASN1 functions that just operate on content octets
5425 IMPLICIT tagging can be handled properly. It also allows
5426 the ASN1_ENUMERATED code to be cut down because ASN1_ENUMERATED
5427 and ASN1_INTEGER are identical apart from the tag.
5430 *) Change the handling of OID objects as follows:
5432 - New object identifiers are inserted in objects.txt, following
5433 the syntax given in objects.README.
5434 - objects.pl is used to process obj_mac.num and create a new
5436 - obj_dat.pl is used to create a new obj_dat.h, using the data in
5439 This is currently kind of a hack, and the perl code in objects.pl
5440 isn't very elegant, but it works as I intended. The simplest way
5441 to check that it worked correctly is to look in obj_dat.h and
5442 check the array nid_objs and make sure the objects haven't moved
5443 around (this is important!). Additions are OK, as well as
5444 consistent name changes.
5447 *) Add BSD-style MD5-based passwords to 'openssl passwd' (option '-1').
5450 *) Addition of the command line parameter '-rand file' to 'openssl req'.
5451 The given file adds to whatever has already been seeded into the
5452 random pool through the RANDFILE configuration file option or
5453 environment variable, or the default random state file.
5456 *) mkstack.pl now sorts each macro group into lexical order.
5457 Previously the output order depended on the order the files
5458 appeared in the directory, resulting in needless rewriting
5462 *) Patches to make OpenSSL compile under Win32 again. Mostly
5463 work arounds for the VC++ problem that it treats func() as
5464 func(void). Also stripped out the parts of mkdef.pl that
5465 added extra typesafe functions: these no longer exist.
5468 *) Reorganisation of the stack code. The macros are now all
5469 collected in safestack.h . Each macro is defined in terms of
5470 a "stack macro" of the form SKM_<name>(type, a, b). The
5471 DEBUG_SAFESTACK is now handled in terms of function casts,
5472 this has the advantage of retaining type safety without the
5473 use of additional functions. If DEBUG_SAFESTACK is not defined
5474 then the non typesafe macros are used instead. Also modified the
5475 mkstack.pl script to handle the new form. Needs testing to see
5476 if which (if any) compilers it chokes and maybe make DEBUG_SAFESTACK
5477 the default if no major problems. Similar behaviour for ASN1_SET_OF
5478 and PKCS12_STACK_OF.
5481 *) When some versions of IIS use the 'NET' form of private key the
5482 key derivation algorithm is different. Normally MD5(password) is
5483 used as a 128 bit RC4 key. In the modified case
5484 MD5(MD5(password) + "SGCKEYSALT") is used insted. Added some
5485 new functions i2d_RSA_NET(), d2i_RSA_NET() etc which are the same
5486 as the old Netscape_RSA functions except they have an additional
5487 'sgckey' parameter which uses the modified algorithm. Also added
5488 an -sgckey command line option to the rsa utility. Thanks to
5489 Adrian Peck <bertie@ncipher.com> for posting details of the modified
5490 algorithm to openssl-dev.
5493 *) The evp_local.h macros were using 'c.##kname' which resulted in
5494 invalid expansion on some systems (SCO 5.0.5 for example).
5495 Corrected to 'c.kname'.
5496 [Phillip Porch <root@theporch.com>]
5498 *) New X509_get1_email() and X509_REQ_get1_email() functions that return
5499 a STACK of email addresses from a certificate or request, these look
5500 in the subject name and the subject alternative name extensions and
5501 omit any duplicate addresses.
5504 *) Re-implement BN_mod_exp2_mont using independent (and larger) windows.
5505 This makes DSA verification about 2 % faster.
5508 *) Increase maximum window size in BN_mod_exp_... to 6 bits instead of 5
5509 (meaning that now 2^5 values will be precomputed, which is only 4 KB
5510 plus overhead for 1024 bit moduli).
5511 This makes exponentiations about 0.5 % faster for 1024 bit
5512 exponents (as measured by "openssl speed rsa2048").
5515 *) Rename memory handling macros to avoid conflicts with other
5517 Malloc => OPENSSL_malloc
5518 Malloc_locked => OPENSSL_malloc_locked
5519 Realloc => OPENSSL_realloc
5520 Free => OPENSSL_free
5523 *) New function BN_mod_exp_mont_word for small bases (roughly 15%
5524 faster than BN_mod_exp_mont, i.e. 7% for a full DH exchange).
5527 *) CygWin32 support.
5528 [John Jarvie <jjarvie@newsguy.com>]
5530 *) The type-safe stack code has been rejigged. It is now only compiled
5531 in when OpenSSL is configured with the DEBUG_SAFESTACK option and
5532 by default all type-specific stack functions are "#define"d back to
5533 standard stack functions. This results in more streamlined output
5534 but retains the type-safety checking possibilities of the original
5538 *) The STACK code has been cleaned up, and certain type declarations
5539 that didn't make a lot of sense have been brought in line. This has
5540 also involved a cleanup of sorts in safestack.h to more correctly
5541 map type-safe stack functions onto their plain stack counterparts.
5542 This work has also resulted in a variety of "const"ifications of
5543 lots of the code, especially "_cmp" operations which should normally
5544 be prototyped with "const" parameters anyway.
5547 *) When generating bytes for the first time in md_rand.c, 'stir the pool'
5548 by seeding with STATE_SIZE dummy bytes (with zero entropy count).
5549 (The PRNG state consists of two parts, the large pool 'state' and 'md',
5550 where all of 'md' is used each time the PRNG is used, but 'state'
5551 is used only indexed by a cyclic counter. As entropy may not be
5552 well distributed from the beginning, 'md' is important as a
5553 chaining variable. However, the output function chains only half
5554 of 'md', i.e. 80 bits. ssleay_rand_add, on the other hand, chains
5555 all of 'md', and seeding with STATE_SIZE dummy bytes will result
5556 in all of 'state' being rewritten, with the new values depending
5557 on virtually all of 'md'. This overcomes the 80 bit limitation.)
5560 *) In ssl/s2_clnt.c and ssl/s3_clnt.c, call ERR_clear_error() when
5561 the handshake is continued after ssl_verify_cert_chain();
5562 otherwise, if SSL_VERIFY_NONE is set, remaining error codes
5563 can lead to 'unexplainable' connection aborts later.
5564 [Bodo Moeller; problem tracked down by Lutz Jaenicke]
5566 *) Major EVP API cipher revision.
5567 Add hooks for extra EVP features. This allows various cipher
5568 parameters to be set in the EVP interface. Support added for variable
5569 key length ciphers via the EVP_CIPHER_CTX_set_key_length() function and
5570 setting of RC2 and RC5 parameters.
5572 Modify EVP_OpenInit() and EVP_SealInit() to cope with variable key length
5575 Remove lots of duplicated code from the EVP library. For example *every*
5576 cipher init() function handles the 'iv' in the same way according to the
5577 cipher mode. They also all do nothing if the 'key' parameter is NULL and
5578 for CFB and OFB modes they zero ctx->num.
5580 New functionality allows removal of S/MIME code RC2 hack.
5582 Most of the routines have the same form and so can be declared in terms
5585 By shifting this to the top level EVP_CipherInit() it can be removed from
5586 all individual ciphers. If the cipher wants to handle IVs or keys
5587 differently it can set the EVP_CIPH_CUSTOM_IV or EVP_CIPH_ALWAYS_CALL_INIT
5590 Change lots of functions like EVP_EncryptUpdate() to now return a
5591 value: although software versions of the algorithms cannot fail
5592 any installed hardware versions can.
5595 *) Implement SSL_OP_TLS_ROLLBACK_BUG: In ssl3_get_client_key_exchange, if
5596 this option is set, tolerate broken clients that send the negotiated
5597 protocol version number instead of the requested protocol version
5601 *) Call dh_tmp_cb (set by ..._TMP_DH_CB) with correct 'is_export' flag;
5602 i.e. non-zero for export ciphersuites, zero otherwise.
5603 Previous versions had this flag inverted, inconsistent with
5604 rsa_tmp_cb (..._TMP_RSA_CB).
5605 [Bodo Moeller; problem reported by Amit Chopra]
5607 *) Add missing DSA library text string. Work around for some IIS
5608 key files with invalid SEQUENCE encoding.
5611 *) Add a document (doc/standards.txt) that list all kinds of standards
5612 and so on that are implemented in OpenSSL.
5615 *) Enhance c_rehash script. Old version would mishandle certificates
5616 with the same subject name hash and wouldn't handle CRLs at all.
5617 Added -fingerprint option to crl utility, to support new c_rehash
5621 *) Eliminate non-ANSI declarations in crypto.h and stack.h.
5624 *) Fix for SSL server purpose checking. Server checking was
5625 rejecting certificates which had extended key usage present
5626 but no ssl client purpose.
5627 [Steve Henson, reported by Rene Grosser <grosser@hisolutions.com>]
5629 *) Make PKCS#12 code work with no password. The PKCS#12 spec
5630 is a little unclear about how a blank password is handled.
5631 Since the password in encoded as a BMPString with terminating
5632 double NULL a zero length password would end up as just the
5633 double NULL. However no password at all is different and is
5634 handled differently in the PKCS#12 key generation code. NS
5635 treats a blank password as zero length. MSIE treats it as no
5636 password on export: but it will try both on import. We now do
5637 the same: PKCS12_parse() tries zero length and no password if
5638 the password is set to "" or NULL (NULL is now a valid password:
5639 it wasn't before) as does the pkcs12 application.
5642 *) Bugfixes in apps/x509.c: Avoid a memory leak; and don't use
5643 perror when PEM_read_bio_X509_REQ fails, the error message must
5644 be obtained from the error queue.
5647 *) Avoid 'thread_hash' memory leak in crypto/err/err.c by freeing
5648 it in ERR_remove_state if appropriate, and change ERR_get_state
5649 accordingly to avoid race conditions (this is necessary because
5650 thread_hash is no longer constant once set).
5653 *) Bugfix for linux-elf makefile.one.
5656 *) RSA_get_default_method() will now cause a default
5657 RSA_METHOD to be chosen if one doesn't exist already.
5658 Previously this was only set during a call to RSA_new()
5659 or RSA_new_method(NULL) meaning it was possible for
5660 RSA_get_default_method() to return NULL.
5663 *) Added native name translation to the existing DSO code
5664 that will convert (if the flag to do so is set) filenames
5665 that are sufficiently small and have no path information
5666 into a canonical native form. Eg. "blah" converted to
5667 "libblah.so" or "blah.dll" etc.
5670 *) New function ERR_error_string_n(e, buf, len) which is like
5671 ERR_error_string(e, buf), but writes at most 'len' bytes
5672 including the 0 terminator. For ERR_error_string_n, 'buf'
5674 [Damien Miller <djm@mindrot.org>, Bodo Moeller]
5676 *) CONF library reworked to become more general. A new CONF
5677 configuration file reader "class" is implemented as well as a
5678 new functions (NCONF_*, for "New CONF") to handle it. The now
5679 old CONF_* functions are still there, but are reimplemented to
5680 work in terms of the new functions. Also, a set of functions
5681 to handle the internal storage of the configuration data is
5682 provided to make it easier to write new configuration file
5683 reader "classes" (I can definitely see something reading a
5684 configuration file in XML format, for example), called _CONF_*,
5685 or "the configuration storage API"...
5687 The new configuration file reading functions are:
5689 NCONF_new, NCONF_free, NCONF_load, NCONF_load_fp, NCONF_load_bio,
5690 NCONF_get_section, NCONF_get_string, NCONF_get_numbre
5692 NCONF_default, NCONF_WIN32
5694 NCONF_dump_fp, NCONF_dump_bio
5696 NCONF_default and NCONF_WIN32 are method (or "class") choosers,
5697 NCONF_new creates a new CONF object. This works in the same way
5698 as other interfaces in OpenSSL, like the BIO interface.
5699 NCONF_dump_* dump the internal storage of the configuration file,
5700 which is useful for debugging. All other functions take the same
5701 arguments as the old CONF_* functions wth the exception of the
5702 first that must be a `CONF *' instead of a `LHASH *'.
5704 To make it easer to use the new classes with the old CONF_* functions,
5705 the function CONF_set_default_method is provided.
5708 *) Add '-tls1' option to 'openssl ciphers', which was already
5709 mentioned in the documentation but had not been implemented.
5710 (This option is not yet really useful because even the additional
5711 experimental TLS 1.0 ciphers are currently treated as SSL 3.0 ciphers.)
5714 *) Initial DSO code added into libcrypto for letting OpenSSL (and
5715 OpenSSL-based applications) load shared libraries and bind to
5716 them in a portable way.
5717 [Geoff Thorpe, with contributions from Richard Levitte]
5719 Changes between 0.9.5 and 0.9.5a [1 Apr 2000]
5721 *) Make sure _lrotl and _lrotr are only used with MSVC.
5723 *) Use lock CRYPTO_LOCK_RAND correctly in ssleay_rand_status
5724 (the default implementation of RAND_status).
5726 *) Rename openssl x509 option '-crlext', which was added in 0.9.5,
5727 to '-clrext' (= clear extensions), as intended and documented.
5728 [Bodo Moeller; inconsistency pointed out by Michael Attili
5731 *) Fix for HMAC. It wasn't zeroing the rest of the block if the key length
5732 was larger than the MD block size.
5733 [Steve Henson, pointed out by Yost William <YostW@tce.com>]
5735 *) Modernise PKCS12_parse() so it uses STACK_OF(X509) for its ca argument
5736 fix a leak when the ca argument was passed as NULL. Stop X509_PUBKEY_set()
5737 using the passed key: if the passed key was a private key the result
5738 of X509_print(), for example, would be to print out all the private key
5742 *) des_quad_cksum() byte order bug fix.
5743 [Ulf Möller, using the problem description in krb4-0.9.7, where
5744 the solution is attributed to Derrick J Brashear <shadow@DEMENTIA.ORG>]
5746 *) Fix so V_ASN1_APP_CHOOSE works again: however its use is strongly
5748 [Steve Henson, pointed out by Brian Korver <briank@cs.stanford.edu>]
5750 *) For easily testing in shell scripts whether some command
5751 'openssl XXX' exists, the new pseudo-command 'openssl no-XXX'
5752 returns with exit code 0 iff no command of the given name is available.
5753 'no-XXX' is printed in this case, 'XXX' otherwise. In both cases,
5754 the output goes to stdout and nothing is printed to stderr.
5755 Additional arguments are always ignored.
5757 Since for each cipher there is a command of the same name,
5758 the 'no-cipher' compilation switches can be tested this way.
5760 ('openssl no-XXX' is not able to detect pseudo-commands such
5761 as 'quit', 'list-XXX-commands', or 'no-XXX' itself.)
5764 *) Update test suite so that 'make test' succeeds in 'no-rsa' configuration.
5767 *) For SSL_[CTX_]set_tmp_dh, don't create a DH key if SSL_OP_SINGLE_DH_USE
5768 is set; it will be thrown away anyway because each handshake creates
5770 ssl_cert_dup, which is used by SSL_new, now copies DH keys in addition
5771 to parameters -- in previous versions (since OpenSSL 0.9.3) the
5772 'default key' from SSL_CTX_set_tmp_dh would always be lost, meanining
5773 you effectivly got SSL_OP_SINGLE_DH_USE when using this macro.
5776 *) New s_client option -ign_eof: EOF at stdin is ignored, and
5777 'Q' and 'R' lose their special meanings (quit/renegotiate).
5778 This is part of what -quiet does; unlike -quiet, -ign_eof
5779 does not suppress any output.
5782 *) Add compatibility options to the purpose and trust code. The
5783 purpose X509_PURPOSE_ANY is "any purpose" which automatically
5784 accepts a certificate or CA, this was the previous behaviour,
5785 with all the associated security issues.
5787 X509_TRUST_COMPAT is the old trust behaviour: only and
5788 automatically trust self signed roots in certificate store. A
5789 new trust setting X509_TRUST_DEFAULT is used to specify that
5790 a purpose has no associated trust setting and it should instead
5791 use the value in the default purpose.
5794 *) Fix the PKCS#8 DSA private key code so it decodes keys again
5795 and fix a memory leak.
5798 *) In util/mkerr.pl (which implements 'make errors'), preserve
5799 reason strings from the previous version of the .c file, as
5800 the default to have only downcase letters (and digits) in
5801 automatically generated reasons codes is not always appropriate.
5804 *) In ERR_load_ERR_strings(), build an ERR_LIB_SYS error reason table
5805 using strerror. Previously, ERR_reason_error_string() returned
5806 library names as reason strings for SYSerr; but SYSerr is a special
5807 case where small numbers are errno values, not library numbers.
5810 *) Add '-dsaparam' option to 'openssl dhparam' application. This
5811 converts DSA parameters into DH parameters. (When creating parameters,
5812 DSA_generate_parameters is used.)
5815 *) Include 'length' (recommended exponent length) in C code generated
5816 by 'openssl dhparam -C'.
5819 *) The second argument to set_label in perlasm was already being used
5820 so couldn't be used as a "file scope" flag. Moved to third argument
5824 *) In PEM_ASN1_write_bio and some other functions, use RAND_pseudo_bytes
5825 instead of RAND_bytes for encryption IVs and salts.
5828 *) Include RAND_status() into RAND_METHOD instead of implementing
5829 it only for md_rand.c Otherwise replacing the PRNG by calling
5830 RAND_set_rand_method would be impossible.
5833 *) Don't let DSA_generate_key() enter an infinite loop if the random
5834 number generation fails.
5837 *) New 'rand' application for creating pseudo-random output.
5840 *) Added configuration support for Linux/IA64
5841 [Rolf Haberrecker <rolf@suse.de>]
5843 *) Assembler module support for Mingw32.
5846 *) Shared library support for HPUX (in shlib/).
5847 [Lutz Jaenicke <Lutz.Jaenicke@aet.TU-Cottbus.DE> and Anonymous]
5849 *) Shared library support for Solaris gcc.
5850 [Lutz Behnke <behnke@trustcenter.de>]
5852 Changes between 0.9.4 and 0.9.5 [28 Feb 2000]
5854 *) PKCS7_encrypt() was adding text MIME headers twice because they
5855 were added manually and by SMIME_crlf_copy().
5858 *) In bntest.c don't call BN_rand with zero bits argument.
5859 [Steve Henson, pointed out by Andrew W. Gray <agray@iconsinc.com>]
5861 *) BN_mul bugfix: In bn_mul_part_recursion() only the a>a[n] && b>b[n]
5862 case was implemented. This caused BN_div_recp() to fail occasionally.
5865 *) Add an optional second argument to the set_label() in the perl
5866 assembly language builder. If this argument exists and is set
5867 to 1 it signals that the assembler should use a symbol whose
5868 scope is the entire file, not just the current function. This
5869 is needed with MASM which uses the format label:: for this scope.
5870 [Steve Henson, pointed out by Peter Runestig <peter@runestig.com>]
5872 *) Change the ASN1 types so they are typedefs by default. Before
5873 almost all types were #define'd to ASN1_STRING which was causing
5874 STACK_OF() problems: you couldn't declare STACK_OF(ASN1_UTF8STRING)
5878 *) Change names of new functions to the new get1/get0 naming
5879 convention: After 'get1', the caller owns a reference count
5880 and has to call ..._free; 'get0' returns a pointer to some
5881 data structure without incrementing reference counters.
5882 (Some of the existing 'get' functions increment a reference
5883 counter, some don't.)
5884 Similarly, 'set1' and 'add1' functions increase reference
5885 counters or duplicate objects.
5888 *) Allow for the possibility of temp RSA key generation failure:
5889 the code used to assume it always worked and crashed on failure.
5892 *) Fix potential buffer overrun problem in BIO_printf().
5893 [Ulf Möller, using public domain code by Patrick Powell; problem
5894 pointed out by David Sacerdote <das33@cornell.edu>]
5896 *) Support EGD <http://www.lothar.com/tech/crypto/>. New functions
5897 RAND_egd() and RAND_status(). In the command line application,
5898 the EGD socket can be specified like a seed file using RANDFILE
5902 *) Allow the string CERTIFICATE to be tolerated in PKCS#7 structures.
5903 Some CAs (e.g. Verisign) distribute certificates in this form.
5906 *) Remove the SSL_ALLOW_ADH compile option and set the default cipher
5907 list to exclude them. This means that no special compilation option
5908 is needed to use anonymous DH: it just needs to be included in the
5912 *) Change the EVP_MD_CTX_type macro so its meaning consistent with
5913 EVP_MD_type. The old functionality is available in a new macro called
5914 EVP_MD_md(). Change code that uses it and update docs.
5917 *) ..._ctrl functions now have corresponding ..._callback_ctrl functions
5918 where the 'void *' argument is replaced by a function pointer argument.
5919 Previously 'void *' was abused to point to functions, which works on
5920 many platforms, but is not correct. As these functions are usually
5921 called by macros defined in OpenSSL header files, most source code
5922 should work without changes.
5925 *) <openssl/opensslconf.h> (which is created by Configure) now contains
5926 sections with information on -D... compiler switches used for
5927 compiling the library so that applications can see them. To enable
5928 one of these sections, a pre-processor symbol OPENSSL_..._DEFINES
5929 must be defined. E.g.,
5930 #define OPENSSL_ALGORITHM_DEFINES
5931 #include <openssl/opensslconf.h>
5932 defines all pertinent NO_<algo> symbols, such as NO_IDEA, NO_RSA, etc.
5933 [Richard Levitte, Ulf and Bodo Möller]
5935 *) Bugfix: Tolerate fragmentation and interleaving in the SSL 3/TLS
5939 *) Change the 'other' type in certificate aux info to a STACK_OF
5940 X509_ALGOR. Although not an AlgorithmIdentifier as such it has
5941 the required ASN1 format: arbitrary types determined by an OID.
5944 *) Add some PEM_write_X509_REQ_NEW() functions and a command line
5945 argument to 'req'. This is not because the function is newer or
5946 better than others it just uses the work 'NEW' in the certificate
5947 request header lines. Some software needs this.
5950 *) Reorganise password command line arguments: now passwords can be
5951 obtained from various sources. Delete the PEM_cb function and make
5952 it the default behaviour: i.e. if the callback is NULL and the
5953 usrdata argument is not NULL interpret it as a null terminated pass
5954 phrase. If usrdata and the callback are NULL then the pass phrase
5955 is prompted for as usual.
5958 *) Add support for the Compaq Atalla crypto accelerator. If it is installed,
5959 the support is automatically enabled. The resulting binaries will
5960 autodetect the card and use it if present.
5961 [Ben Laurie and Compaq Inc.]
5963 *) Work around for Netscape hang bug. This sends certificate request
5964 and server done in one record. Since this is perfectly legal in the
5965 SSL/TLS protocol it isn't a "bug" option and is on by default. See
5966 the bugs/SSLv3 entry for more info.
5969 *) HP-UX tune-up: new unified configs, HP C compiler bug workaround.
5972 *) Add -rand argument to smime and pkcs12 applications and read/write
5976 *) New 'passwd' tool for crypt(3) and apr1 password hashes.
5979 *) Add command line password options to the remaining applications.
5982 *) Bug fix for BN_div_recp() for numerators with an even number of
5986 *) More tests in bntest.c, and changed test_bn output.
5989 *) ./config recognizes MacOS X now.
5992 *) Bug fix for BN_div() when the first words of num and divsor are
5993 equal (it gave wrong results if (rem=(n1-q*d0)&BN_MASK2) < d0).
5996 *) Add support for various broken PKCS#8 formats, and command line
5997 options to produce them.
6000 *) New functions BN_CTX_start(), BN_CTX_get() and BT_CTX_end() to
6001 get temporary BIGNUMs from a BN_CTX.
6004 *) Correct return values in BN_mod_exp_mont() and BN_mod_exp2_mont()
6008 *) Change the SSLeay_add_all_*() functions to OpenSSL_add_all_*() and
6009 include a #define from the old name to the new. The original intent
6010 was that statically linked binaries could for example just call
6011 SSLeay_add_all_ciphers() to just add ciphers to the table and not
6012 link with digests. This never worked becayse SSLeay_add_all_digests()
6013 and SSLeay_add_all_ciphers() were in the same source file so calling
6014 one would link with the other. They are now in separate source files.
6017 *) Add a new -notext option to 'ca' and a -pubkey option to 'spkac'.
6020 *) Use a less unusual form of the Miller-Rabin primality test (it used
6021 a binary algorithm for exponentiation integrated into the Miller-Rabin
6022 loop, our standard modexp algorithms are faster).
6025 *) Support for the EBCDIC character set completed.
6026 [Martin Kraemer <Martin.Kraemer@Mch.SNI.De>]
6028 *) Source code cleanups: use const where appropriate, eliminate casts,
6029 use void * instead of char * in lhash.
6032 *) Bugfix: ssl3_send_server_key_exchange was not restartable
6033 (the state was not changed to SSL3_ST_SW_KEY_EXCH_B, and because of
6034 this the server could overwrite ephemeral keys that the client
6038 *) Turn DSA_is_prime into a macro that calls BN_is_prime,
6039 using 50 iterations of the Rabin-Miller test.
6041 DSA_generate_parameters now uses BN_is_prime_fasttest (with 50
6042 iterations of the Rabin-Miller test as required by the appendix
6043 to FIPS PUB 186[-1]) instead of DSA_is_prime.
6044 As BN_is_prime_fasttest includes trial division, DSA parameter
6045 generation becomes much faster.
6047 This implies a change for the callback functions in DSA_is_prime
6048 and DSA_generate_parameters: The callback function is called once
6049 for each positive witness in the Rabin-Miller test, not just
6050 occasionally in the inner loop; and the parameters to the
6051 callback function now provide an iteration count for the outer
6052 loop rather than for the current invocation of the inner loop.
6053 DSA_generate_parameters additionally can call the callback
6054 function with an 'iteration count' of -1, meaning that a
6055 candidate has passed the trial division test (when q is generated
6056 from an application-provided seed, trial division is skipped).
6059 *) New function BN_is_prime_fasttest that optionally does trial
6060 division before starting the Rabin-Miller test and has
6061 an additional BN_CTX * argument (whereas BN_is_prime always
6062 has to allocate at least one BN_CTX).
6063 'callback(1, -1, cb_arg)' is called when a number has passed the
6064 trial division stage.
6067 *) Fix for bug in CRL encoding. The validity dates weren't being handled
6071 *) New -pkcs12 option to CA.pl script to write out a PKCS#12 file.
6074 *) New function BN_pseudo_rand().
6077 *) Clean up BN_mod_mul_montgomery(): replace the broken (and unreadable)
6078 bignum version of BN_from_montgomery() with the working code from
6079 SSLeay 0.9.0 (the word based version is faster anyway), and clean up
6083 *) Avoid a race condition in s2_clnt.c (function get_server_hello) that
6084 made it impossible to use the same SSL_SESSION data structure in
6085 SSL2 clients in multiple threads.
6088 *) The return value of RAND_load_file() no longer counts bytes obtained
6089 by stat(). RAND_load_file(..., -1) is new and uses the complete file
6090 to seed the PRNG (previously an explicit byte count was required).
6091 [Ulf Möller, Bodo Möller]
6093 *) Clean up CRYPTO_EX_DATA functions, some of these didn't have prototypes
6094 used (char *) instead of (void *) and had casts all over the place.
6097 *) Make BN_generate_prime() return NULL on error if ret!=NULL.
6100 *) Retain source code compatibility for BN_prime_checks macro:
6101 BN_is_prime(..., BN_prime_checks, ...) now uses
6102 BN_prime_checks_for_size to determine the appropriate number of
6103 Rabin-Miller iterations.
6106 *) Diffie-Hellman uses "safe" primes: DH_check() return code renamed to
6107 DH_CHECK_P_NOT_SAFE_PRIME.
6108 (Check if this is true? OpenPGP calls them "strong".)
6111 *) Merge the functionality of "dh" and "gendh" programs into a new program
6112 "dhparam". The old programs are retained for now but will handle DH keys
6113 (instead of parameters) in future.
6116 *) Make the ciphers, s_server and s_client programs check the return values
6117 when a new cipher list is set.
6120 *) Enhance the SSL/TLS cipher mechanism to correctly handle the TLS 56bit
6121 ciphers. Before when the 56bit ciphers were enabled the sorting was
6124 The syntax for the cipher sorting has been extended to support sorting by
6125 cipher-strength (using the strength_bits hard coded in the tables).
6126 The new command is "@STRENGTH" (see also doc/apps/ciphers.pod).
6128 Fix a bug in the cipher-command parser: when supplying a cipher command
6129 string with an "undefined" symbol (neither command nor alphanumeric
6130 [A-Za-z0-9], ssl_set_cipher_list used to hang in an endless loop. Now
6131 an error is flagged.
6133 Due to the strength-sorting extension, the code of the
6134 ssl_create_cipher_list() function was completely rearranged. I hope that
6135 the readability was also increased :-)
6136 [Lutz Jaenicke <Lutz.Jaenicke@aet.TU-Cottbus.DE>]
6138 *) Minor change to 'x509' utility. The -CAcreateserial option now uses 1
6139 for the first serial number and places 2 in the serial number file. This
6140 avoids problems when the root CA is created with serial number zero and
6141 the first user certificate has the same issuer name and serial number
6145 *) Fixes to X509_ATTRIBUTE utilities, change the 'req' program so it uses
6146 the new code. Add documentation for this stuff.
6149 *) Changes to X509_ATTRIBUTE utilities. These have been renamed from
6150 X509_*() to X509at_*() on the grounds that they don't handle X509
6151 structures and behave in an analagous way to the X509v3 functions:
6152 they shouldn't be called directly but wrapper functions should be used
6155 So we also now have some wrapper functions that call the X509at functions
6156 when passed certificate requests. (TO DO: similar things can be done with
6157 PKCS#7 signed and unsigned attributes, PKCS#12 attributes and a few other
6158 things. Some of these need some d2i or i2d and print functionality
6159 because they handle more complex structures.)
6162 *) Add missing #ifndefs that caused missing symbols when building libssl
6163 as a shared library without RSA. Use #ifndef NO_SSL2 instead of
6164 NO_RSA in ssl/s2*.c.
6165 [Kris Kennaway <kris@hub.freebsd.org>, modified by Ulf Möller]
6167 *) Precautions against using the PRNG uninitialized: RAND_bytes() now
6168 has a return value which indicates the quality of the random data
6169 (1 = ok, 0 = not seeded). Also an error is recorded on the thread's
6170 error queue. New function RAND_pseudo_bytes() generates output that is
6171 guaranteed to be unique but not unpredictable. RAND_add is like
6172 RAND_seed, but takes an extra argument for an entropy estimate
6173 (RAND_seed always assumes full entropy).
6176 *) Do more iterations of Rabin-Miller probable prime test (specifically,
6177 3 for 1024-bit primes, 6 for 512-bit primes, 12 for 256-bit primes
6178 instead of only 2 for all lengths; see BN_prime_checks_for_size definition
6179 in crypto/bn/bn_prime.c for the complete table). This guarantees a
6180 false-positive rate of at most 2^-80 for random input.
6183 *) Rewrite ssl3_read_n (ssl/s3_pkt.c) avoiding a couple of bugs.
6186 *) New function X509_CTX_rget_chain() (renamed to X509_CTX_get1_chain
6187 in the 0.9.5 release), this returns the chain
6188 from an X509_CTX structure with a dup of the stack and all
6189 the X509 reference counts upped: so the stack will exist
6190 after X509_CTX_cleanup() has been called. Modify pkcs12.c
6193 Also make SSL_SESSION_print() print out the verify return
6197 *) Add manpage for the pkcs12 command. Also change the default
6198 behaviour so MAC iteration counts are used unless the new
6199 -nomaciter option is used. This improves file security and
6200 only older versions of MSIE (4.0 for example) need it.
6203 *) Honor the no-xxx Configure options when creating .DEF files.
6206 *) Add PKCS#10 attributes to field table: challengePassword,
6207 unstructuredName and unstructuredAddress. These are taken from
6208 draft PKCS#9 v2.0 but are compatible with v1.2 provided no
6209 international characters are used.
6211 More changes to X509_ATTRIBUTE code: allow the setting of types
6212 based on strings. Remove the 'loc' parameter when adding
6213 attributes because these will be a SET OF encoding which is sorted
6217 *) Initial changes to the 'req' utility to allow request generation
6218 automation. This will allow an application to just generate a template
6219 file containing all the field values and have req construct the
6222 Initial support for X509_ATTRIBUTE handling. Stacks of these are
6223 used all over the place including certificate requests and PKCS#7
6224 structures. They are currently handled manually where necessary with
6225 some primitive wrappers for PKCS#7. The new functions behave in a
6226 manner analogous to the X509 extension functions: they allow
6227 attributes to be looked up by NID and added.
6229 Later something similar to the X509V3 code would be desirable to
6230 automatically handle the encoding, decoding and printing of the
6231 more complex types. The string types like challengePassword can
6232 be handled by the string table functions.
6234 Also modified the multi byte string table handling. Now there is
6235 a 'global mask' which masks out certain types. The table itself
6236 can use the flag STABLE_NO_MASK to ignore the mask setting: this
6237 is useful when for example there is only one permissible type
6238 (as in countryName) and using the mask might result in no valid
6242 *) Clean up 'Finished' handling, and add functions SSL_get_finished and
6243 SSL_get_peer_finished to allow applications to obtain the latest
6244 Finished messages sent to the peer or expected from the peer,
6245 respectively. (SSL_get_peer_finished is usually the Finished message
6246 actually received from the peer, otherwise the protocol will be aborted.)
6248 As the Finished message are message digests of the complete handshake
6249 (with a total of 192 bits for TLS 1.0 and more for SSL 3.0), they can
6250 be used for external authentication procedures when the authentication
6251 provided by SSL/TLS is not desired or is not enough.
6254 *) Enhanced support for Alpha Linux is added. Now ./config checks if
6255 the host supports BWX extension and if Compaq C is present on the
6256 $PATH. Just exploiting of the BWX extension results in 20-30%
6257 performance kick for some algorithms, e.g. DES and RC4 to mention
6258 a couple. Compaq C in turn generates ~20% faster code for MD5 and
6262 *) Add support for MS "fast SGC". This is arguably a violation of the
6263 SSL3/TLS protocol. Netscape SGC does two handshakes: the first with
6264 weak crypto and after checking the certificate is SGC a second one
6265 with strong crypto. MS SGC stops the first handshake after receiving
6266 the server certificate message and sends a second client hello. Since
6267 a server will typically do all the time consuming operations before
6268 expecting any further messages from the client (server key exchange
6269 is the most expensive) there is little difference between the two.
6271 To get OpenSSL to support MS SGC we have to permit a second client
6272 hello message after we have sent server done. In addition we have to
6273 reset the MAC if we do get this second client hello.
6276 *) Add a function 'd2i_AutoPrivateKey()' this will automatically decide
6277 if a DER encoded private key is RSA or DSA traditional format. Changed
6278 d2i_PrivateKey_bio() to use it. This is only needed for the "traditional"
6279 format DER encoded private key. Newer code should use PKCS#8 format which
6280 has the key type encoded in the ASN1 structure. Added DER private key
6281 support to pkcs8 application.
6284 *) SSL 3/TLS 1 servers now don't request certificates when an anonymous
6285 ciphersuites has been selected (as required by the SSL 3/TLS 1
6286 specifications). Exception: When SSL_VERIFY_FAIL_IF_NO_PEER_CERT
6287 is set, we interpret this as a request to violate the specification
6288 (the worst that can happen is a handshake failure, and 'correct'
6289 behaviour would result in a handshake failure anyway).
6292 *) In SSL_CTX_add_session, take into account that there might be multiple
6293 SSL_SESSION structures with the same session ID (e.g. when two threads
6294 concurrently obtain them from an external cache).
6295 The internal cache can handle only one SSL_SESSION with a given ID,
6296 so if there's a conflict, we now throw out the old one to achieve
6300 *) Add OIDs for idea and blowfish in CBC mode. This will allow both
6301 to be used in PKCS#5 v2.0 and S/MIME. Also add checking to
6302 some routines that use cipher OIDs: some ciphers do not have OIDs
6303 defined and so they cannot be used for S/MIME and PKCS#5 v2.0 for
6307 *) Simplify the trust setting structure and code. Now we just have
6308 two sequences of OIDs for trusted and rejected settings. These will
6309 typically have values the same as the extended key usage extension
6310 and any application specific purposes.
6312 The trust checking code now has a default behaviour: it will just
6313 check for an object with the same NID as the passed id. Functions can
6314 be provided to override either the default behaviour or the behaviour
6315 for a given id. SSL client, server and email already have functions
6316 in place for compatibility: they check the NID and also return "trusted"
6317 if the certificate is self signed.
6320 *) Add d2i,i2d bio/fp functions for PrivateKey: these convert the
6321 traditional format into an EVP_PKEY structure.
6324 *) Add a password callback function PEM_cb() which either prompts for
6325 a password if usr_data is NULL or otherwise assumes it is a null
6326 terminated password. Allow passwords to be passed on command line
6327 environment or config files in a few more utilities.
6330 *) Add a bunch of DER and PEM functions to handle PKCS#8 format private
6331 keys. Add some short names for PKCS#8 PBE algorithms and allow them
6332 to be specified on the command line for the pkcs8 and pkcs12 utilities.
6333 Update documentation.
6336 *) Support for ASN1 "NULL" type. This could be handled before by using
6337 ASN1_TYPE but there wasn't any function that would try to read a NULL
6338 and produce an error if it couldn't. For compatibility we also have
6339 ASN1_NULL_new() and ASN1_NULL_free() functions but these are faked and
6340 don't allocate anything because they don't need to.
6343 *) Initial support for MacOS is now provided. Examine INSTALL.MacOS
6345 [Andy Polyakov, Roy Woods <roy@centicsystems.ca>]
6347 *) Rebuild of the memory allocation routines used by OpenSSL code and
6348 possibly others as well. The purpose is to make an interface that
6349 provide hooks so anyone can build a separate set of allocation and
6350 deallocation routines to be used by OpenSSL, for example memory
6351 pool implementations, or something else, which was previously hard
6352 since Malloc(), Realloc() and Free() were defined as macros having
6353 the values malloc, realloc and free, respectively (except for Win32
6354 compilations). The same is provided for memory debugging code.
6355 OpenSSL already comes with functionality to find memory leaks, but
6356 this gives people a chance to debug other memory problems.
6358 With these changes, a new set of functions and macros have appeared:
6360 CRYPTO_set_mem_debug_functions() [F]
6361 CRYPTO_get_mem_debug_functions() [F]
6362 CRYPTO_dbg_set_options() [F]
6363 CRYPTO_dbg_get_options() [F]
6364 CRYPTO_malloc_debug_init() [M]
6366 The memory debug functions are NULL by default, unless the library
6367 is compiled with CRYPTO_MDEBUG or friends is defined. If someone
6368 wants to debug memory anyway, CRYPTO_malloc_debug_init() (which
6369 gives the standard debugging functions that come with OpenSSL) or
6370 CRYPTO_set_mem_debug_functions() (tells OpenSSL to use functions
6371 provided by the library user) must be used. When the standard
6372 debugging functions are used, CRYPTO_dbg_set_options can be used to
6373 request additional information:
6374 CRYPTO_dbg_set_options(V_CYRPTO_MDEBUG_xxx) corresponds to setting
6375 the CRYPTO_MDEBUG_xxx macro when compiling the library.
6377 Also, things like CRYPTO_set_mem_functions will always give the
6378 expected result (the new set of functions is used for allocation
6379 and deallocation) at all times, regardless of platform and compiler
6382 To finish it up, some functions that were never use in any other
6383 way than through macros have a new API and new semantic:
6386 CRYPTO_dbg_realloc()
6389 All macros of value have retained their old syntax.
6390 [Richard Levitte and Bodo Moeller]
6392 *) Some S/MIME fixes. The OID for SMIMECapabilities was wrong, the
6393 ordering of SMIMECapabilities wasn't in "strength order" and there
6394 was a missing NULL in the AlgorithmIdentifier for the SHA1 signature
6398 *) Some ASN1 types with illegal zero length encoding (INTEGER,
6399 ENUMERATED and OBJECT IDENTIFIER) choked the ASN1 routines.
6400 [Frans Heymans <fheymans@isaserver.be>, modified by Steve Henson]
6402 *) Merge in my S/MIME library for OpenSSL. This provides a simple
6403 S/MIME API on top of the PKCS#7 code, a MIME parser (with enough
6404 functionality to handle multipart/signed properly) and a utility
6405 called 'smime' to call all this stuff. This is based on code I
6406 originally wrote for Celo who have kindly allowed it to be
6407 included in OpenSSL.
6410 *) Add variants des_set_key_checked and des_set_key_unchecked of
6411 des_set_key (aka des_key_sched). Global variable des_check_key
6412 decides which of these is called by des_set_key; this way
6413 des_check_key behaves as it always did, but applications and
6414 the library itself, which was buggy for des_check_key == 1,
6415 have a cleaner way to pick the version they need.
6418 *) New function PKCS12_newpass() which changes the password of a
6422 *) Modify X509_TRUST and X509_PURPOSE so it also uses a static and
6423 dynamic mix. In both cases the ids can be used as an index into the
6424 table. Also modified the X509_TRUST_add() and X509_PURPOSE_add()
6425 functions so they accept a list of the field values and the
6426 application doesn't need to directly manipulate the X509_TRUST
6430 *) Modify the ASN1_STRING_TABLE stuff so it also uses bsearch and doesn't
6434 *) Modify the way the V3 extension code looks up extensions. This now
6435 works in a similar way to the object code: we have some "standard"
6436 extensions in a static table which is searched with OBJ_bsearch()
6437 and the application can add dynamic ones if needed. The file
6438 crypto/x509v3/ext_dat.h now has the info: this file needs to be
6439 updated whenever a new extension is added to the core code and kept
6440 in ext_nid order. There is a simple program 'tabtest.c' which checks
6441 this. New extensions are not added too often so this file can readily
6442 be maintained manually.
6444 There are two big advantages in doing things this way. The extensions
6445 can be looked up immediately and no longer need to be "added" using
6446 X509V3_add_standard_extensions(): this function now does nothing.
6447 [Side note: I get *lots* of email saying the extension code doesn't
6448 work because people forget to call this function]
6449 Also no dynamic allocation is done unless new extensions are added:
6450 so if we don't add custom extensions there is no need to call
6451 X509V3_EXT_cleanup().
6454 *) Modify enc utility's salting as follows: make salting the default. Add a
6455 magic header, so unsalted files fail gracefully instead of just decrypting
6456 to garbage. This is because not salting is a big security hole, so people
6457 should be discouraged from doing it.
6460 *) Fixes and enhancements to the 'x509' utility. It allowed a message
6461 digest to be passed on the command line but it only used this
6462 parameter when signing a certificate. Modified so all relevant
6463 operations are affected by the digest parameter including the
6464 -fingerprint and -x509toreq options. Also -x509toreq choked if a
6465 DSA key was used because it didn't fix the digest.
6468 *) Initial certificate chain verify code. Currently tests the untrusted
6469 certificates for consistency with the verify purpose (which is set
6470 when the X509_STORE_CTX structure is set up) and checks the pathlength.
6472 There is a NO_CHAIN_VERIFY compilation option to keep the old behaviour:
6473 this is because it will reject chains with invalid extensions whereas
6474 every previous version of OpenSSL and SSLeay made no checks at all.
6476 Trust code: checks the root CA for the relevant trust settings. Trust
6477 settings have an initial value consistent with the verify purpose: e.g.
6478 if the verify purpose is for SSL client use it expects the CA to be
6479 trusted for SSL client use. However the default value can be changed to
6480 permit custom trust settings: one example of this would be to only trust
6481 certificates from a specific "secure" set of CAs.
6483 Also added X509_STORE_CTX_new() and X509_STORE_CTX_free() functions
6484 which should be used for version portability: especially since the
6485 verify structure is likely to change more often now.
6487 SSL integration. Add purpose and trust to SSL_CTX and SSL and functions
6488 to set them. If not set then assume SSL clients will verify SSL servers
6491 Two new options to the verify program: -untrusted allows a set of
6492 untrusted certificates to be passed in and -purpose which sets the
6493 intended purpose of the certificate. If a purpose is set then the
6494 new chain verify code is used to check extension consistency.
6497 *) Support for the authority information access extension.
6500 *) Modify RSA and DSA PEM read routines to transparently handle
6501 PKCS#8 format private keys. New *_PUBKEY_* functions that handle
6502 public keys in a format compatible with certificate
6503 SubjectPublicKeyInfo structures. Unfortunately there were already
6504 functions called *_PublicKey_* which used various odd formats so
6505 these are retained for compatibility: however the DSA variants were
6506 never in a public release so they have been deleted. Changed dsa/rsa
6507 utilities to handle the new format: note no releases ever handled public
6508 keys so we should be OK.
6510 The primary motivation for this change is to avoid the same fiasco
6511 that dogs private keys: there are several incompatible private key
6512 formats some of which are standard and some OpenSSL specific and
6513 require various evil hacks to allow partial transparent handling and
6514 even then it doesn't work with DER formats. Given the option anything
6515 other than PKCS#8 should be dumped: but the other formats have to
6516 stay in the name of compatibility.
6518 With public keys and the benefit of hindsight one standard format
6519 is used which works with EVP_PKEY, RSA or DSA structures: though
6520 it clearly returns an error if you try to read the wrong kind of key.
6522 Added a -pubkey option to the 'x509' utility to output the public key.
6523 Also rename the EVP_PKEY_get_*() to EVP_PKEY_rget_*()
6524 (renamed to EVP_PKEY_get1_*() in the OpenSSL 0.9.5 release) and add
6525 EVP_PKEY_rset_*() functions (renamed to EVP_PKEY_set1_*())
6526 that do the same as the EVP_PKEY_assign_*() except they up the
6527 reference count of the added key (they don't "swallow" the
6531 *) Fixes to crypto/x509/by_file.c the code to read in certificates and
6532 CRLs would fail if the file contained no certificates or no CRLs:
6533 added a new function to read in both types and return the number
6534 read: this means that if none are read it will be an error. The
6535 DER versions of the certificate and CRL reader would always fail
6536 because it isn't possible to mix certificates and CRLs in DER format
6537 without choking one or the other routine. Changed this to just read
6538 a certificate: this is the best we can do. Also modified the code
6539 in apps/verify.c to take notice of return codes: it was previously
6540 attempting to read in certificates from NULL pointers and ignoring
6541 any errors: this is one reason why the cert and CRL reader seemed
6542 to work. It doesn't check return codes from the default certificate
6543 routines: these may well fail if the certificates aren't installed.
6546 *) Code to support otherName option in GeneralName.
6549 *) First update to verify code. Change the verify utility
6550 so it warns if it is passed a self signed certificate:
6551 for consistency with the normal behaviour. X509_verify
6552 has been modified to it will now verify a self signed
6553 certificate if *exactly* the same certificate appears
6554 in the store: it was previously impossible to trust a
6555 single self signed certificate. This means that:
6556 openssl verify ss.pem
6557 now gives a warning about a self signed certificate but
6558 openssl verify -CAfile ss.pem ss.pem
6562 *) For servers, store verify_result in SSL_SESSION data structure
6563 (and add it to external session representation).
6564 This is needed when client certificate verifications fails,
6565 but an application-provided verification callback (set by
6566 SSL_CTX_set_cert_verify_callback) allows accepting the session
6567 anyway (i.e. leaves x509_store_ctx->error != X509_V_OK
6568 but returns 1): When the session is reused, we have to set
6569 ssl->verify_result to the appropriate error code to avoid
6571 [Bodo Moeller, problem pointed out by Lutz Jaenicke]
6573 *) Fix a bug in the new PKCS#7 code: it didn't consider the
6574 case in PKCS7_dataInit() where the signed PKCS7 structure
6575 didn't contain any existing data because it was being created.
6576 [Po-Cheng Chen <pocheng@nst.com.tw>, slightly modified by Steve Henson]
6578 *) Add a salt to the key derivation routines in enc.c. This
6579 forms the first 8 bytes of the encrypted file. Also add a
6580 -S option to allow a salt to be input on the command line.
6583 *) New function X509_cmp(). Oddly enough there wasn't a function
6584 to compare two certificates. We do this by working out the SHA1
6585 hash and comparing that. X509_cmp() will be needed by the trust
6589 *) SSL_get1_session() is like SSL_get_session(), but increments
6590 the reference count in the SSL_SESSION returned.
6591 [Geoff Thorpe <geoff@eu.c2.net>]
6593 *) Fix for 'req': it was adding a null to request attributes.
6594 Also change the X509_LOOKUP and X509_INFO code to handle
6595 certificate auxiliary information.
6598 *) Add support for 40 and 64 bit RC2 and RC4 algorithms: document
6602 *) Add the possibility to add extra information to the memory leak
6603 detecting output, to form tracebacks, showing from where each
6604 allocation was originated: CRYPTO_push_info("constant string") adds
6605 the string plus current file name and line number to a per-thread
6606 stack, CRYPTO_pop_info() does the obvious, CRYPTO_remove_all_info()
6607 is like calling CYRPTO_pop_info() until the stack is empty.
6608 Also updated memory leak detection code to be multi-thread-safe.
6611 *) Add options -text and -noout to pkcs7 utility and delete the
6612 encryption options which never did anything. Update docs.
6615 *) Add options to some of the utilities to allow the pass phrase
6616 to be included on either the command line (not recommended on
6617 OSes like Unix) or read from the environment. Update the
6618 manpages and fix a few bugs.
6621 *) Add a few manpages for some of the openssl commands.
6624 *) Fix the -revoke option in ca. It was freeing up memory twice,
6625 leaking and not finding already revoked certificates.
6628 *) Extensive changes to support certificate auxiliary information.
6629 This involves the use of X509_CERT_AUX structure and X509_AUX
6630 functions. An X509_AUX function such as PEM_read_X509_AUX()
6631 can still read in a certificate file in the usual way but it
6632 will also read in any additional "auxiliary information". By
6633 doing things this way a fair degree of compatibility can be
6634 retained: existing certificates can have this information added
6635 using the new 'x509' options.
6637 Current auxiliary information includes an "alias" and some trust
6638 settings. The trust settings will ultimately be used in enhanced
6639 certificate chain verification routines: currently a certificate
6640 can only be trusted if it is self signed and then it is trusted
6644 *) Fix assembler for Alpha (tested only on DEC OSF not Linux or *BSD).
6645 The problem was that one of the replacement routines had not been working
6646 since SSLeay releases. For now the offending routine has been replaced
6647 with non-optimised assembler. Even so, this now gives around 95%
6648 performance improvement for 1024 bit RSA signs.
6651 *) Hack to fix PKCS#7 decryption when used with some unorthodox RC2
6652 handling. Most clients have the effective key size in bits equal to
6653 the key length in bits: so a 40 bit RC2 key uses a 40 bit (5 byte) key.
6654 A few however don't do this and instead use the size of the decrypted key
6655 to determine the RC2 key length and the AlgorithmIdentifier to determine
6656 the effective key length. In this case the effective key length can still
6657 be 40 bits but the key length can be 168 bits for example. This is fixed
6658 by manually forcing an RC2 key into the EVP_PKEY structure because the
6659 EVP code can't currently handle unusual RC2 key sizes: it always assumes
6660 the key length and effective key length are equal.
6663 *) Add a bunch of functions that should simplify the creation of
6664 X509_NAME structures. Now you should be able to do:
6665 X509_NAME_add_entry_by_txt(nm, "CN", MBSTRING_ASC, "Steve", -1, -1, 0);
6666 and have it automatically work out the correct field type and fill in
6667 the structures. The more adventurous can try:
6668 X509_NAME_add_entry_by_txt(nm, field, MBSTRING_UTF8, str, -1, -1, 0);
6669 and it will (hopefully) work out the correct multibyte encoding.
6672 *) Change the 'req' utility to use the new field handling and multibyte
6673 copy routines. Before the DN field creation was handled in an ad hoc
6674 way in req, ca, and x509 which was rather broken and didn't support
6675 BMPStrings or UTF8Strings. Since some software doesn't implement
6676 BMPStrings or UTF8Strings yet, they can be enabled using the config file
6677 using the dirstring_type option. See the new comment in the default
6678 openssl.cnf for more info.
6681 *) Make crypto/rand/md_rand.c more robust:
6682 - Assure unique random numbers after fork().
6683 - Make sure that concurrent threads access the global counter and
6684 md serializably so that we never lose entropy in them
6685 or use exactly the same state in multiple threads.
6686 Access to the large state is not always serializable because
6687 the additional locking could be a performance killer, and
6688 md should be large enough anyway.
6691 *) New file apps/app_rand.c with commonly needed functionality
6692 for handling the random seed file.
6694 Use the random seed file in some applications that previously did not:
6696 dsaparam -genkey (which also ignored its '-rand' option),
6699 x509 (when signing).
6700 Except on systems with /dev/urandom, it is crucial to have a random
6701 seed file at least for key creation, DSA signing, and for DH exchanges;
6702 for RSA signatures we could do without one.
6704 gendh and gendsa (unlike genrsa) used to read only the first byte
6705 of each file listed in the '-rand' option. The function as previously
6706 found in genrsa is now in app_rand.c and is used by all programs
6707 that support '-rand'.
6710 *) In RAND_write_file, use mode 0600 for creating files;
6711 don't just chmod when it may be too late.
6714 *) Report an error from X509_STORE_load_locations
6715 when X509_LOOKUP_load_file or X509_LOOKUP_add_dir failed.
6718 *) New function ASN1_mbstring_copy() this copies a string in either
6719 ASCII, Unicode, Universal (4 bytes per character) or UTF8 format
6720 into an ASN1_STRING type. A mask of permissible types is passed
6721 and it chooses the "minimal" type to use or an error if not type
6725 *) Add function equivalents to the various macros in asn1.h. The old
6726 macros are retained with an M_ prefix. Code inside the library can
6727 use the M_ macros. External code (including the openssl utility)
6728 should *NOT* in order to be "shared library friendly".
6731 *) Add various functions that can check a certificate's extensions
6732 to see if it usable for various purposes such as SSL client,
6733 server or S/MIME and CAs of these types. This is currently
6734 VERY EXPERIMENTAL but will ultimately be used for certificate chain
6735 verification. Also added a -purpose flag to x509 utility to
6736 print out all the purposes.
6739 *) Add a CRYPTO_EX_DATA to X509 certificate structure and associated
6743 *) New X509V3_{X509,CRL,REVOKED}_get_d2i() functions. These will search
6744 for, obtain and decode and extension and obtain its critical flag.
6745 This allows all the necessary extension code to be handled in a
6746 single function call.
6749 *) RC4 tune-up featuring 30-40% performance improvement on most RISC
6750 platforms. See crypto/rc4/rc4_enc.c for further details.
6753 *) New -noout option to asn1parse. This causes no output to be produced
6754 its main use is when combined with -strparse and -out to extract data
6755 from a file (which may not be in ASN.1 format).
6758 *) Fix for pkcs12 program. It was hashing an invalid certificate pointer
6759 when producing the local key id.
6760 [Richard Levitte <levitte@stacken.kth.se>]
6762 *) New option -dhparam in s_server. This allows a DH parameter file to be
6763 stated explicitly. If it is not stated then it tries the first server
6764 certificate file. The previous behaviour hard coded the filename
6768 *) Add -pubin and -pubout options to the rsa and dsa commands. These allow
6769 a public key to be input or output. For example:
6770 openssl rsa -in key.pem -pubout -out pubkey.pem
6771 Also added necessary DSA public key functions to handle this.
6774 *) Fix so PKCS7_dataVerify() doesn't crash if no certificates are contained
6775 in the message. This was handled by allowing
6776 X509_find_by_issuer_and_serial() to tolerate a NULL passed to it.
6777 [Steve Henson, reported by Sampo Kellomaki <sampo@mail.neuronio.pt>]
6779 *) Fix for bug in d2i_ASN1_bytes(): other ASN1 functions add an extra null
6780 to the end of the strings whereas this didn't. This would cause problems
6781 if strings read with d2i_ASN1_bytes() were later modified.
6782 [Steve Henson, reported by Arne Ansper <arne@ats.cyber.ee>]
6784 *) Fix for base64 decode bug. When a base64 bio reads only one line of
6785 data and it contains EOF it will end up returning an error. This is
6786 caused by input 46 bytes long. The cause is due to the way base64
6787 BIOs find the start of base64 encoded data. They do this by trying a
6788 trial decode on each line until they find one that works. When they
6789 do a flag is set and it starts again knowing it can pass all the
6790 data directly through the decoder. Unfortunately it doesn't reset
6791 the context it uses. This means that if EOF is reached an attempt
6792 is made to pass two EOFs through the context and this causes the
6793 resulting error. This can also cause other problems as well. As is
6794 usual with these problems it takes *ages* to find and the fix is
6795 trivial: move one line.
6796 [Steve Henson, reported by ian@uns.ns.ac.yu (Ivan Nejgebauer) ]
6798 *) Ugly workaround to get s_client and s_server working under Windows. The
6799 old code wouldn't work because it needed to select() on sockets and the
6800 tty (for keypresses and to see if data could be written). Win32 only
6801 supports select() on sockets so we select() with a 1s timeout on the
6802 sockets and then see if any characters are waiting to be read, if none
6803 are present then we retry, we also assume we can always write data to
6804 the tty. This isn't nice because the code then blocks until we've
6805 received a complete line of data and it is effectively polling the
6806 keyboard at 1s intervals: however it's quite a bit better than not
6807 working at all :-) A dedicated Windows application might handle this
6808 with an event loop for example.
6811 *) Enhance RSA_METHOD structure. Now there are two extra methods, rsa_sign
6812 and rsa_verify. When the RSA_FLAGS_SIGN_VER option is set these functions
6813 will be called when RSA_sign() and RSA_verify() are used. This is useful
6814 if rsa_pub_dec() and rsa_priv_enc() equivalents are not available.
6815 For this to work properly RSA_public_decrypt() and RSA_private_encrypt()
6816 should *not* be used: RSA_sign() and RSA_verify() must be used instead.
6817 This necessitated the support of an extra signature type NID_md5_sha1
6818 for SSL signatures and modifications to the SSL library to use it instead
6819 of calling RSA_public_decrypt() and RSA_private_encrypt().
6822 *) Add new -verify -CAfile and -CApath options to the crl program, these
6823 will lookup a CRL issuers certificate and verify the signature in a
6824 similar way to the verify program. Tidy up the crl program so it
6825 no longer accesses structures directly. Make the ASN1 CRL parsing a bit
6826 less strict. It will now permit CRL extensions even if it is not
6827 a V2 CRL: this will allow it to tolerate some broken CRLs.
6830 *) Initialize all non-automatic variables each time one of the openssl
6831 sub-programs is started (this is necessary as they may be started
6832 multiple times from the "OpenSSL>" prompt).
6833 [Lennart Bang, Bodo Moeller]
6835 *) Preliminary compilation option RSA_NULL which disables RSA crypto without
6836 removing all other RSA functionality (this is what NO_RSA does). This
6837 is so (for example) those in the US can disable those operations covered
6838 by the RSA patent while allowing storage and parsing of RSA keys and RSA
6842 *) Non-copying interface to BIO pairs.
6843 (still largely untested)
6846 *) New function ANS1_tag2str() to convert an ASN1 tag to a descriptive
6847 ASCII string. This was handled independently in various places before.
6850 *) New functions UTF8_getc() and UTF8_putc() that parse and generate
6851 UTF8 strings a character at a time.
6854 *) Use client_version from client hello to select the protocol
6855 (s23_srvr.c) and for RSA client key exchange verification
6856 (s3_srvr.c), as required by the SSL 3.0/TLS 1.0 specifications.
6859 *) Add various utility functions to handle SPKACs, these were previously
6860 handled by poking round in the structure internals. Added new function
6861 NETSCAPE_SPKI_print() to print out SPKAC and a new utility 'spkac' to
6862 print, verify and generate SPKACs. Based on an original idea from
6863 Massimiliano Pala <madwolf@comune.modena.it> but extensively modified.
6866 *) RIPEMD160 is operational on all platforms and is back in 'make test'.
6869 *) Allow the config file extension section to be overwritten on the
6870 command line. Based on an original idea from Massimiliano Pala
6871 <madwolf@comune.modena.it>. The new option is called -extensions
6872 and can be applied to ca, req and x509. Also -reqexts to override
6873 the request extensions in req and -crlexts to override the crl extensions
6877 *) Add new feature to the SPKAC handling in ca. Now you can include
6878 the same field multiple times by preceding it by "XXXX." for example:
6881 this is the same syntax as used in the req config file.
6884 *) Allow certificate extensions to be added to certificate requests. These
6885 are specified in a 'req_extensions' option of the req section of the
6886 config file. They can be printed out with the -text option to req but
6887 are otherwise ignored at present.
6890 *) Fix a horrible bug in enc_read() in crypto/evp/bio_enc.c: if the first
6891 data read consists of only the final block it would not decrypted because
6892 EVP_CipherUpdate() would correctly report zero bytes had been decrypted.
6893 A misplaced 'break' also meant the decrypted final block might not be
6894 copied until the next read.
6897 *) Initial support for DH_METHOD. Again based on RSA_METHOD. Also added
6898 a few extra parameters to the DH structure: these will be useful if
6899 for example we want the value of 'q' or implement X9.42 DH.
6902 *) Initial support for DSA_METHOD. This is based on the RSA_METHOD and
6903 provides hooks that allow the default DSA functions or functions on a
6904 "per key" basis to be replaced. This allows hardware acceleration and
6905 hardware key storage to be handled without major modification to the
6906 library. Also added low level modexp hooks and CRYPTO_EX structure and
6907 associated functions.
6910 *) Add a new flag to memory BIOs, BIO_FLAG_MEM_RDONLY. This marks the BIO
6911 as "read only": it can't be written to and the buffer it points to will
6912 not be freed. Reading from a read only BIO is much more efficient than
6913 a normal memory BIO. This was added because there are several times when
6914 an area of memory needs to be read from a BIO. The previous method was
6915 to create a memory BIO and write the data to it, this results in two
6916 copies of the data and an O(n^2) reading algorithm. There is a new
6917 function BIO_new_mem_buf() which creates a read only memory BIO from
6918 an area of memory. Also modified the PKCS#7 routines to use read only
6922 *) Bugfix: ssl23_get_client_hello did not work properly when called in
6923 state SSL23_ST_SR_CLNT_HELLO_B, i.e. when the first 7 bytes of
6924 a SSLv2-compatible client hello for SSLv3 or TLSv1 could be read,
6925 but a retry condition occured while trying to read the rest.
6928 *) The PKCS7_ENC_CONTENT_new() function was setting the content type as
6929 NID_pkcs7_encrypted by default: this was wrong since this should almost
6930 always be NID_pkcs7_data. Also modified the PKCS7_set_type() to handle
6931 the encrypted data type: this is a more sensible place to put it and it
6932 allows the PKCS#12 code to be tidied up that duplicated this
6936 *) Changed obj_dat.pl script so it takes its input and output files on
6937 the command line. This should avoid shell escape redirection problems
6941 *) Initial support for certificate extension requests, these are included
6942 in things like Xenroll certificate requests. Included functions to allow
6943 extensions to be obtained and added.
6946 *) -crlf option to s_client and s_server for sending newlines as
6947 CRLF (as required by many protocols).
6950 Changes between 0.9.3a and 0.9.4 [09 Aug 1999]
6952 *) Install libRSAglue.a when OpenSSL is built with RSAref.
6953 [Ralf S. Engelschall]
6955 *) A few more ``#ifndef NO_FP_API / #endif'' pairs for consistency.
6956 [Andrija Antonijevic <TheAntony2@bigfoot.com>]
6958 *) Fix -startdate and -enddate (which was missing) arguments to 'ca'
6962 *) New function DSA_dup_DH, which duplicates DSA parameters/keys as
6963 DH parameters/keys (q is lost during that conversion, but the resulting
6964 DH parameters contain its length).
6966 For 1024-bit p, DSA_generate_parameters followed by DSA_dup_DH is
6967 much faster than DH_generate_parameters (which creates parameters
6968 where p = 2*q + 1), and also the smaller q makes DH computations
6969 much more efficient (160-bit exponentiation instead of 1024-bit
6970 exponentiation); so this provides a convenient way to support DHE
6971 ciphersuites in SSL/TLS servers (see ssl/ssltest.c). It is of
6972 utter importance to use
6973 SSL_CTX_set_options(s_ctx, SSL_OP_SINGLE_DH_USE);
6975 SSL_set_options(s_ctx, SSL_OP_SINGLE_DH_USE);
6976 when such DH parameters are used, because otherwise small subgroup
6977 attacks may become possible!
6980 *) Avoid memory leak in i2d_DHparams.
6983 *) Allow the -k option to be used more than once in the enc program:
6984 this allows the same encrypted message to be read by multiple recipients.
6987 *) New function OBJ_obj2txt(buf, buf_len, a, no_name), this converts
6988 an ASN1_OBJECT to a text string. If the "no_name" parameter is set then
6989 it will always use the numerical form of the OID, even if it has a short
6993 *) Added an extra RSA flag: RSA_FLAG_EXT_PKEY. Previously the rsa_mod_exp
6994 method only got called if p,q,dmp1,dmq1,iqmp components were present,
6995 otherwise bn_mod_exp was called. In the case of hardware keys for example
6996 no private key components need be present and it might store extra data
6997 in the RSA structure, which cannot be accessed from bn_mod_exp.
6998 By setting RSA_FLAG_EXT_PKEY rsa_mod_exp will always be called for
6999 private key operations.
7002 *) Added support for SPARC Linux.
7005 *) pem_password_cb function type incompatibly changed from
7006 typedef int pem_password_cb(char *buf, int size, int rwflag);
7008 ....(char *buf, int size, int rwflag, void *userdata);
7009 so that applications can pass data to their callbacks:
7010 The PEM[_ASN1]_{read,write}... functions and macros now take an
7011 additional void * argument, which is just handed through whenever
7012 the password callback is called.
7013 [Damien Miller <dmiller@ilogic.com.au>; tiny changes by Bodo Moeller]
7015 New function SSL_CTX_set_default_passwd_cb_userdata.
7017 Compatibility note: As many C implementations push function arguments
7018 onto the stack in reverse order, the new library version is likely to
7019 interoperate with programs that have been compiled with the old
7020 pem_password_cb definition (PEM_whatever takes some data that
7021 happens to be on the stack as its last argument, and the callback
7022 just ignores this garbage); but there is no guarantee whatsoever that
7025 *) The -DPLATFORM="\"$(PLATFORM)\"" definition and the similar -DCFLAGS=...
7026 (both in crypto/Makefile.ssl for use by crypto/cversion.c) caused
7027 problems not only on Windows, but also on some Unix platforms.
7028 To avoid problematic command lines, these definitions are now in an
7029 auto-generated file crypto/buildinf.h (created by crypto/Makefile.ssl
7030 for standard "make" builds, by util/mk1mf.pl for "mk1mf" builds).
7033 *) MIPS III/IV assembler module is reimplemented.
7036 *) More DES library cleanups: remove references to srand/rand and
7037 delete an unused file.
7040 *) Add support for the the free Netwide assembler (NASM) under Win32,
7041 since not many people have MASM (ml) and it can be hard to obtain.
7042 This is currently experimental but it seems to work OK and pass all
7043 the tests. Check out INSTALL.W32 for info.
7046 *) Fix memory leaks in s3_clnt.c: All non-anonymous SSL3/TLS1 connections
7047 without temporary keys kept an extra copy of the server key,
7048 and connections with temporary keys did not free everything in case
7052 *) New function RSA_check_key and new openssl rsa option -check
7053 for verifying the consistency of RSA keys.
7054 [Ulf Moeller, Bodo Moeller]
7056 *) Various changes to make Win32 compile work:
7057 1. Casts to avoid "loss of data" warnings in p5_crpt2.c
7058 2. Change unsigned int to int in b_dump.c to avoid "signed/unsigned
7059 comparison" warnings.
7060 3. Add sk_<TYPE>_sort to DEF file generator and do make update.
7063 *) Add a debugging option to PKCS#5 v2 key generation function: when
7064 you #define DEBUG_PKCS5V2 passwords, salts, iteration counts and
7065 derived keys are printed to stderr.
7068 *) Copy the flags in ASN1_STRING_dup().
7069 [Roman E. Pavlov <pre@mo.msk.ru>]
7071 *) The x509 application mishandled signing requests containing DSA
7072 keys when the signing key was also DSA and the parameters didn't match.
7074 It was supposed to omit the parameters when they matched the signing key:
7075 the verifying software was then supposed to automatically use the CA's
7076 parameters if they were absent from the end user certificate.
7078 Omitting parameters is no longer recommended. The test was also
7079 the wrong way round! This was probably due to unusual behaviour in
7080 EVP_cmp_parameters() which returns 1 if the parameters match.
7081 This meant that parameters were omitted when they *didn't* match and
7082 the certificate was useless. Certificates signed with 'ca' didn't have
7084 [Steve Henson, reported by Doug Erickson <Doug.Erickson@Part.NET>]
7086 *) Memory leak checking (-DCRYPTO_MDEBUG) had some problems.
7087 The interface is as follows:
7088 Applications can use
7089 CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_ON) aka MemCheck_start(),
7090 CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_OFF) aka MemCheck_stop();
7091 "off" is now the default.
7092 The library internally uses
7093 CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_DISABLE) aka MemCheck_off(),
7094 CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_ENABLE) aka MemCheck_on()
7095 to disable memory-checking temporarily.
7097 Some inconsistent states that previously were possible (and were
7098 even the default) are now avoided.
7100 -DCRYPTO_MDEBUG_TIME is new and additionally stores the current time
7101 with each memory chunk allocated; this is occasionally more helpful
7102 than just having a counter.
7104 -DCRYPTO_MDEBUG_THREAD is also new and adds the thread ID.
7106 -DCRYPTO_MDEBUG_ALL enables all of the above, plus any future
7110 *) Introduce "mode" for SSL structures (with defaults in SSL_CTX),
7111 which largely parallels "options", but is for changing API behaviour,
7112 whereas "options" are about protocol behaviour.
7113 Initial "mode" flags are:
7115 SSL_MODE_ENABLE_PARTIAL_WRITE Allow SSL_write to report success when
7116 a single record has been written.
7117 SSL_MODE_ACCEPT_MOVING_WRITE_BUFFER Don't insist that SSL_write
7118 retries use the same buffer location.
7119 (But all of the contents must be
7123 *) Bugfix: SSL_set_options ignored its parameter, only SSL_CTX_set_options
7126 *) Fix problems with no-hmac etc.
7127 [Ulf Möller, pointed out by Brian Wellington <bwelling@tislabs.com>]
7129 *) New functions RSA_get_default_method(), RSA_set_method() and
7130 RSA_get_method(). These allows replacement of RSA_METHODs without having
7131 to mess around with the internals of an RSA structure.
7134 *) Fix memory leaks in DSA_do_sign and DSA_is_prime.
7135 Also really enable memory leak checks in openssl.c and in some
7137 [Chad C. Mulligan, Bodo Moeller]
7139 *) Fix a bug in d2i_ASN1_INTEGER() and i2d_ASN1_INTEGER() which can mess
7140 up the length of negative integers. This has now been simplified to just
7141 store the length when it is first determined and use it later, rather
7142 than trying to keep track of where data is copied and updating it to
7144 [Steve Henson, reported by Brien Wheeler
7145 <bwheeler@authentica-security.com>]
7147 *) Add a new function PKCS7_signatureVerify. This allows the verification
7148 of a PKCS#7 signature but with the signing certificate passed to the
7149 function itself. This contrasts with PKCS7_dataVerify which assumes the
7150 certificate is present in the PKCS#7 structure. This isn't always the
7151 case: certificates can be omitted from a PKCS#7 structure and be
7152 distributed by "out of band" means (such as a certificate database).
7155 *) Complete the PEM_* macros with DECLARE_PEM versions to replace the
7156 function prototypes in pem.h, also change util/mkdef.pl to add the
7157 necessary function names.
7160 *) mk1mf.pl (used by Windows builds) did not properly read the
7161 options set by Configure in the top level Makefile, and Configure
7162 was not even able to write more than one option correctly.
7163 Fixed, now "no-idea no-rc5 -DCRYPTO_MDEBUG" etc. works as intended.
7166 *) New functions CONF_load_bio() and CONF_load_fp() to allow a config
7167 file to be loaded from a BIO or FILE pointer. The BIO version will
7168 for example allow memory BIOs to contain config info.
7171 *) New function "CRYPTO_num_locks" that returns CRYPTO_NUM_LOCKS.
7172 Whoever hopes to achieve shared-library compatibility across versions
7173 must use this, not the compile-time macro.
7174 (Exercise 0.9.4: Which is the minimum library version required by
7176 Note: All this applies only to multi-threaded programs, others don't
7180 *) Add missing case to s3_clnt.c state machine -- one of the new SSL tests
7181 through a BIO pair triggered the default case, i.e.
7182 SSLerr(...,SSL_R_UNKNOWN_STATE).
7185 *) New "BIO pair" concept (crypto/bio/bss_bio.c) so that applications
7186 can use the SSL library even if none of the specific BIOs is
7190 *) Fix a bug in i2d_DSAPublicKey() which meant it returned the wrong value
7191 for the encoded length.
7192 [Jeon KyoungHo <khjeon@sds.samsung.co.kr>]
7194 *) Add initial documentation of the X509V3 functions.
7197 *) Add a new pair of functions PEM_write_PKCS8PrivateKey() and
7198 PEM_write_bio_PKCS8PrivateKey() that are equivalent to
7199 PEM_write_PrivateKey() and PEM_write_bio_PrivateKey() but use the more
7200 secure PKCS#8 private key format with a high iteration count.
7203 *) Fix determination of Perl interpreter: A perl or perl5
7204 _directory_ in $PATH was also accepted as the interpreter.
7205 [Ralf S. Engelschall]
7207 *) Fix demos/sign/sign.c: well there wasn't anything strictly speaking
7208 wrong with it but it was very old and did things like calling
7209 PEM_ASN1_read() directly and used MD5 for the hash not to mention some
7213 *) Fix demos/selfsign.c: it used obsolete and deleted functions, changed
7214 to use the new extension code.
7217 *) Implement the PEM_read/PEM_write functions in crypto/pem/pem_all.c
7218 with macros. This should make it easier to change their form, add extra
7219 arguments etc. Fix a few PEM prototypes which didn't have cipher as a
7223 *) Add to configuration table a new entry that can specify an alternative
7224 name for unistd.h (for pre-POSIX systems); we need this for NeXTstep,
7225 according to Mark Crispin <MRC@Panda.COM>.
7229 *) DES CBC did not update the IV. Weird.
7232 des_cbc_encrypt does not update the IV, but des_ncbc_encrypt does.
7233 Changing the behaviour of the former might break existing programs --
7234 where IV updating is needed, des_ncbc_encrypt can be used.
7237 *) When bntest is run from "make test" it drives bc to check its
7238 calculations, as well as internally checking them. If an internal check
7239 fails, it needs to cause bc to give a non-zero result or make test carries
7240 on without noticing the failure. Fixed.
7243 *) DES library cleanups.
7246 *) Add support for PKCS#5 v2.0 PBE algorithms. This will permit PKCS#8 to be
7247 used with any cipher unlike PKCS#5 v1.5 which can at most handle 64 bit
7248 ciphers. NOTE: although the key derivation function has been verified
7249 against some published test vectors it has not been extensively tested
7250 yet. Added a -v2 "cipher" option to pkcs8 application to allow the use
7254 *) Instead of "mkdir -p", which is not fully portable, use new
7255 Perl script "util/mkdir-p.pl".
7258 *) Rewrite the way password based encryption (PBE) is handled. It used to
7259 assume that the ASN1 AlgorithmIdentifier parameter was a PBEParameter
7260 structure. This was true for the PKCS#5 v1.5 and PKCS#12 PBE algorithms
7261 but doesn't apply to PKCS#5 v2.0 where it can be something else. Now
7262 the 'parameter' field of the AlgorithmIdentifier is passed to the
7263 underlying key generation function so it must do its own ASN1 parsing.
7264 This has also changed the EVP_PBE_CipherInit() function which now has a
7265 'parameter' argument instead of literal salt and iteration count values
7266 and the function EVP_PBE_ALGOR_CipherInit() has been deleted.
7269 *) Support for PKCS#5 v1.5 compatible password based encryption algorithms
7270 and PKCS#8 functionality. New 'pkcs8' application linked to openssl.
7271 Needed to change the PEM_STRING_EVP_PKEY value which was just "PRIVATE
7272 KEY" because this clashed with PKCS#8 unencrypted string. Since this
7273 value was just used as a "magic string" and not used directly its
7274 value doesn't matter.
7277 *) Introduce some semblance of const correctness to BN. Shame C doesn't
7281 *) "linux-sparc64" configuration (ultrapenguin).
7282 [Ray Miller <ray.miller@oucs.ox.ac.uk>]
7283 "linux-sparc" configuration.
7284 [Christian Forster <fo@hawo.stw.uni-erlangen.de>]
7286 *) config now generates no-xxx options for missing ciphers.
7289 *) Support the EBCDIC character set (work in progress).
7290 File ebcdic.c not yet included because it has a different license.
7291 [Martin Kraemer <Martin.Kraemer@MchP.Siemens.De>]
7293 *) Support BS2000/OSD-POSIX.
7294 [Martin Kraemer <Martin.Kraemer@MchP.Siemens.De>]
7296 *) Make callbacks for key generation use void * instead of char *.
7299 *) Make S/MIME samples compile (not yet tested).
7302 *) Additional typesafe stacks.
7305 *) New configuration variants "bsdi-elf-gcc" (BSD/OS 4.x).
7309 Changes between 0.9.3 and 0.9.3a [29 May 1999]
7311 *) New configuration variant "sco5-gcc".
7313 *) Updated some demos.
7314 [Sean O Riordain, Wade Scholine]
7316 *) Add missing BIO_free at exit of pkcs12 application.
7319 *) Fix memory leak in conf.c.
7322 *) Updates for Win32 to assembler version of MD5.
7325 *) Set #! path to perl in apps/der_chop to where we found it
7326 instead of using a fixed path.
7329 *) SHA library changes for irix64-mips4-cc.
7332 *) Improvements for VMS support.
7336 Changes between 0.9.2b and 0.9.3 [24 May 1999]
7338 *) Bignum library bug fix. IRIX 6 passes "make test" now!
7339 This also avoids the problems with SC4.2 and unpatched SC5.
7340 [Andy Polyakov <appro@fy.chalmers.se>]
7342 *) New functions sk_num, sk_value and sk_set to replace the previous macros.
7343 These are required because of the typesafe stack would otherwise break
7344 existing code. If old code used a structure member which used to be STACK
7345 and is now STACK_OF (for example cert in a PKCS7_SIGNED structure) with
7346 sk_num or sk_value it would produce an error because the num, data members
7347 are not present in STACK_OF. Now it just produces a warning. sk_set
7348 replaces the old method of assigning a value to sk_value
7349 (e.g. sk_value(x, i) = y) which the library used in a few cases. Any code
7350 that does this will no longer work (and should use sk_set instead) but
7351 this could be regarded as a "questionable" behaviour anyway.
7354 *) Fix most of the other PKCS#7 bugs. The "experimental" code can now
7355 correctly handle encrypted S/MIME data.
7358 *) Change type of various DES function arguments from des_cblock
7359 (which means, in function argument declarations, pointer to char)
7360 to des_cblock * (meaning pointer to array with 8 char elements),
7361 which allows the compiler to do more typechecking; it was like
7362 that back in SSLeay, but with lots of ugly casts.
7364 Introduce new type const_des_cblock.
7367 *) Reorganise the PKCS#7 library and get rid of some of the more obvious
7368 problems: find RecipientInfo structure that matches recipient certificate
7369 and initialise the ASN1 structures properly based on passed cipher.
7372 *) Belatedly make the BN tests actually check the results.
7375 *) Fix the encoding and decoding of negative ASN1 INTEGERS and conversion
7376 to and from BNs: it was completely broken. New compilation option
7377 NEG_PUBKEY_BUG to allow for some broken certificates that encode public
7378 key elements as negative integers.
7381 *) Reorganize and speed up MD5.
7382 [Andy Polyakov <appro@fy.chalmers.se>]
7385 [Richard Levitte <richard@levitte.org>]
7387 *) New option -out to asn1parse to allow the parsed structure to be
7388 output to a file. This is most useful when combined with the -strparse
7389 option to examine the output of things like OCTET STRINGS.
7392 *) Make SSL library a little more fool-proof by not requiring any longer
7393 that SSL_set_{accept,connect}_state be called before
7394 SSL_{accept,connect} may be used (SSL_set_..._state is omitted
7395 in many applications because usually everything *appeared* to work as
7396 intended anyway -- now it really works as intended).
7399 *) Move openssl.cnf out of lib/.
7402 *) Fix various things to let OpenSSL even pass ``egcc -pipe -O2 -Wall
7403 -Wshadow -Wpointer-arith -Wcast-align -Wmissing-prototypes
7404 -Wmissing-declarations -Wnested-externs -Winline'' with EGCS 1.1.2+
7405 [Ralf S. Engelschall]
7407 *) Various fixes to the EVP and PKCS#7 code. It may now be able to
7408 handle PKCS#7 enveloped data properly.
7409 [Sebastian Akerman <sak@parallelconsulting.com>, modified by Steve]
7411 *) Create a duplicate of the SSL_CTX's CERT in SSL_new instead of
7412 copying pointers. The cert_st handling is changed by this in
7413 various ways (and thus what used to be known as ctx->default_cert
7414 is now called ctx->cert, since we don't resort to s->ctx->[default_]cert
7415 any longer when s->cert does not give us what we need).
7416 ssl_cert_instantiate becomes obsolete by this change.
7417 As soon as we've got the new code right (possibly it already is?),
7418 we have solved a couple of bugs of the earlier code where s->cert
7419 was used as if it could not have been shared with other SSL structures.
7421 Note that using the SSL API in certain dirty ways now will result
7422 in different behaviour than observed with earlier library versions:
7423 Changing settings for an SSL_CTX *ctx after having done s = SSL_new(ctx)
7424 does not influence s as it used to.
7426 In order to clean up things more thoroughly, inside SSL_SESSION
7427 we don't use CERT any longer, but a new structure SESS_CERT
7428 that holds per-session data (if available); currently, this is
7429 the peer's certificate chain and, for clients, the server's certificate
7430 and temporary key. CERT holds only those values that can have
7431 meaningful defaults in an SSL_CTX.
7434 *) New function X509V3_EXT_i2d() to create an X509_EXTENSION structure
7435 from the internal representation. Various PKCS#7 fixes: remove some
7436 evil casts and set the enc_dig_alg field properly based on the signing
7440 *) Allow PKCS#12 password to be set from the command line or the
7441 environment. Let 'ca' get its config file name from the environment
7442 variables "OPENSSL_CONF" or "SSLEAY_CONF" (for consistency with 'req'
7446 *) Allow certificate policies extension to use an IA5STRING for the
7447 organization field. This is contrary to the PKIX definition but
7448 VeriSign uses it and IE5 only recognises this form. Document 'x509'
7452 *) Add PEDANTIC compiler flag to allow compilation with gcc -pedantic,
7453 without disallowing inline assembler and the like for non-pedantic builds.
7456 *) Support Borland C++ builder.
7457 [Janez Jere <jj@void.si>, modified by Ulf Möller]
7462 *) SHA-1 cleanups and performance enhancements.
7463 [Andy Polyakov <appro@fy.chalmers.se>]
7465 *) Sparc v8plus assembler for the bignum library.
7466 [Andy Polyakov <appro@fy.chalmers.se>]
7468 *) Accept any -xxx and +xxx compiler options in Configure.
7471 *) Update HPUX configuration.
7474 *) Add missing sk_<type>_unshift() function to safestack.h
7475 [Ralf S. Engelschall]
7477 *) New function SSL_CTX_use_certificate_chain_file that sets the
7478 "extra_cert"s in addition to the certificate. (This makes sense
7479 only for "PEM" format files, as chains as a whole are not
7483 *) Support verify_depth from the SSL API.
7484 x509_vfy.c had what can be considered an off-by-one-error:
7485 Its depth (which was not part of the external interface)
7486 was actually counting the number of certificates in a chain;
7487 now it really counts the depth.
7490 *) Bugfix in crypto/x509/x509_cmp.c: The SSLerr macro was used
7491 instead of X509err, which often resulted in confusing error
7492 messages since the error codes are not globally unique
7493 (e.g. an alleged error in ssl3_accept when a certificate
7494 didn't match the private key).
7496 *) New function SSL_CTX_set_session_id_context that allows to set a default
7497 value (so that you don't need SSL_set_session_id_context for each
7498 connection using the SSL_CTX).
7501 *) OAEP decoding bug fix.
7504 *) Support INSTALL_PREFIX for package builders, as proposed by
7508 *) New Configure options "threads" and "no-threads". For systems
7509 where the proper compiler options are known (currently Solaris
7510 and Linux), "threads" is the default.
7513 *) New script util/mklink.pl as a faster substitute for util/mklink.sh.
7516 *) Install various scripts to $(OPENSSLDIR)/misc, not to
7517 $(INSTALLTOP)/bin -- they shouldn't clutter directories
7518 such as /usr/local/bin.
7521 *) "make linux-shared" to build shared libraries.
7522 [Niels Poppe <niels@netbox.org>]
7524 *) New Configure option no-<cipher> (rsa, idea, rc5, ...).
7527 *) Add the PKCS#12 API documentation to openssl.txt. Preliminary support for
7528 extension adding in x509 utility.
7531 *) Remove NOPROTO sections and error code comments.
7534 *) Partial rewrite of the DEF file generator to now parse the ANSI
7538 *) New Configure options --prefix=DIR and --openssldir=DIR.
7541 *) Complete rewrite of the error code script(s). It is all now handled
7542 by one script at the top level which handles error code gathering,
7543 header rewriting and C source file generation. It should be much better
7544 than the old method: it now uses a modified version of Ulf's parser to
7545 read the ANSI prototypes in all header files (thus the old K&R definitions
7546 aren't needed for error creation any more) and do a better job of
7547 translating function codes into names. The old 'ASN1 error code imbedded
7548 in a comment' is no longer necessary and it doesn't use .err files which
7549 have now been deleted. Also the error code call doesn't have to appear all
7550 on one line (which resulted in some large lines...).
7553 *) Change #include filenames from <foo.h> to <openssl/foo.h>.
7556 *) Change behaviour of ssl2_read when facing length-0 packets: Don't return
7557 0 (which usually indicates a closed connection), but continue reading.
7560 *) Fix some race conditions.
7563 *) Add support for CRL distribution points extension. Add Certificate
7564 Policies and CRL distribution points documentation.
7567 *) Move the autogenerated header file parts to crypto/opensslconf.h.
7570 *) Fix new 56-bit DES export ciphersuites: they were using 7 bytes instead of
7571 8 of keying material. Merlin has also confirmed interop with this fix
7572 between OpenSSL and Baltimore C/SSL 2.0 and J/SSL 2.0.
7573 [Merlin Hughes <merlin@baltimore.ie>]
7575 *) Fix lots of warnings.
7576 [Richard Levitte <levitte@stacken.kth.se>]
7578 *) In add_cert_dir() in crypto/x509/by_dir.c, break out of the loop if
7579 the directory spec didn't end with a LIST_SEPARATOR_CHAR.
7580 [Richard Levitte <levitte@stacken.kth.se>]
7582 *) Fix problems with sizeof(long) == 8.
7583 [Andy Polyakov <appro@fy.chalmers.se>]
7585 *) Change functions to ANSI C.
7588 *) Fix typos in error codes.
7589 [Martin Kraemer <Martin.Kraemer@MchP.Siemens.De>, Ulf Möller]
7591 *) Remove defunct assembler files from Configure.
7594 *) SPARC v8 assembler BIGNUM implementation.
7595 [Andy Polyakov <appro@fy.chalmers.se>]
7597 *) Support for Certificate Policies extension: both print and set.
7598 Various additions to support the r2i method this uses.
7601 *) A lot of constification, and fix a bug in X509_NAME_oneline() that could
7602 return a const string when you are expecting an allocated buffer.
7605 *) Add support for ASN1 types UTF8String and VISIBLESTRING, also the CHOICE
7606 types DirectoryString and DisplayText.
7609 *) Add code to allow r2i extensions to access the configuration database,
7610 add an LHASH database driver and add several ctx helper functions.
7613 *) Fix an evil bug in bn_expand2() which caused various BN functions to
7614 fail when they extended the size of a BIGNUM.
7617 *) Various utility functions to handle SXNet extension. Modify mkdef.pl to
7618 support typesafe stack.
7621 *) Fix typo in SSL_[gs]et_options().
7622 [Nils Frostberg <nils@medcom.se>]
7624 *) Delete various functions and files that belonged to the (now obsolete)
7625 old X509V3 handling code.
7628 *) New Configure option "rsaref".
7631 *) Don't auto-generate pem.h.
7634 *) Introduce type-safe ASN.1 SETs.
7637 *) Convert various additional casted stacks to type-safe STACK_OF() variants.
7638 [Ben Laurie, Ralf S. Engelschall, Steve Henson]
7640 *) Introduce type-safe STACKs. This will almost certainly break lots of code
7641 that links with OpenSSL (well at least cause lots of warnings), but fear
7642 not: the conversion is trivial, and it eliminates loads of evil casts. A
7643 few STACKed things have been converted already. Feel free to convert more.
7644 In the fullness of time, I'll do away with the STACK type altogether.
7647 *) Add `openssl ca -revoke <certfile>' facility which revokes a certificate
7648 specified in <certfile> by updating the entry in the index.txt file.
7649 This way one no longer has to edit the index.txt file manually for
7650 revoking a certificate. The -revoke option does the gory details now.
7651 [Massimiliano Pala <madwolf@openca.org>, Ralf S. Engelschall]
7653 *) Fix `openssl crl -noout -text' combination where `-noout' killed the
7654 `-text' option at all and this way the `-noout -text' combination was
7655 inconsistent in `openssl crl' with the friends in `openssl x509|rsa|dsa'.
7656 [Ralf S. Engelschall]
7658 *) Make sure a corresponding plain text error message exists for the
7659 X509_V_ERR_CERT_REVOKED/23 error number which can occur when a
7660 verify callback function determined that a certificate was revoked.
7661 [Ralf S. Engelschall]
7663 *) Bugfix: In test/testenc, don't test "openssl <cipher>" for
7664 ciphers that were excluded, e.g. by -DNO_IDEA. Also, test
7665 all available cipers including rc5, which was forgotten until now.
7666 In order to let the testing shell script know which algorithms
7667 are available, a new (up to now undocumented) command
7668 "openssl list-cipher-commands" is used.
7671 *) Bugfix: s_client occasionally would sleep in select() when
7672 it should have checked SSL_pending() first.
7675 *) New functions DSA_do_sign and DSA_do_verify to provide access to
7676 the raw DSA values prior to ASN.1 encoding.
7679 *) Tweaks to Configure
7680 [Niels Poppe <niels@netbox.org>]
7682 *) Add support for PKCS#5 v2.0 ASN1 PBES2 structures. No other support,
7686 *) New variables $(RANLIB) and $(PERL) in the Makefiles.
7689 *) New config option to avoid instructions that are illegal on the 80386.
7690 The default code is faster, but requires at least a 486.
7693 *) Got rid of old SSL2_CLIENT_VERSION (inconsistently used) and
7694 SSL2_SERVER_VERSION (not used at all) macros, which are now the
7695 same as SSL2_VERSION anyway.
7698 *) New "-showcerts" option for s_client.
7701 *) Still more PKCS#12 integration. Add pkcs12 application to openssl
7702 application. Various cleanups and fixes.
7705 *) More PKCS#12 integration. Add new pkcs12 directory with Makefile.ssl and
7706 modify error routines to work internally. Add error codes and PBE init
7707 to library startup routines.
7710 *) Further PKCS#12 integration. Added password based encryption, PKCS#8 and
7711 packing functions to asn1 and evp. Changed function names and error
7712 codes along the way.
7715 *) PKCS12 integration: and so it begins... First of several patches to
7716 slowly integrate PKCS#12 functionality into OpenSSL. Add PKCS#12
7717 objects to objects.h
7720 *) Add a new 'indent' option to some X509V3 extension code. Initial ASN1
7721 and display support for Thawte strong extranet extension.
7724 *) Add LinuxPPC support.
7725 [Jeff Dubrule <igor@pobox.org>]
7727 *) Get rid of redundant BN file bn_mulw.c, and rename bn_div64 to
7728 bn_div_words in alpha.s.
7729 [Hannes Reinecke <H.Reinecke@hw.ac.uk> and Ben Laurie]
7731 *) Make sure the RSA OAEP test is skipped under -DRSAref because
7732 OAEP isn't supported when OpenSSL is built with RSAref.
7733 [Ulf Moeller <ulf@fitug.de>]
7735 *) Move definitions of IS_SET/IS_SEQUENCE inside crypto/asn1/asn1.h
7736 so they no longer are missing under -DNOPROTO.
7737 [Soren S. Jorvang <soren@t.dk>]
7740 Changes between 0.9.1c and 0.9.2b [22 Mar 1999]
7742 *) Make SSL_get_peer_cert_chain() work in servers. Unfortunately, it still
7743 doesn't work when the session is reused. Coming soon!
7746 *) Fix a security hole, that allows sessions to be reused in the wrong
7747 context thus bypassing client cert protection! All software that uses
7748 client certs and session caches in multiple contexts NEEDS PATCHING to
7749 allow session reuse! A fuller solution is in the works.
7750 [Ben Laurie, problem pointed out by Holger Reif, Bodo Moeller (and ???)]
7752 *) Some more source tree cleanups (removed obsolete files
7753 crypto/bf/asm/bf586.pl, test/test.txt and crypto/sha/asm/f.s; changed
7754 permission on "config" script to be executable) and a fix for the INSTALL
7756 [Ulf Moeller <ulf@fitug.de>]
7758 *) Remove some legacy and erroneous uses of malloc, free instead of
7760 [Lennart Bang <lob@netstream.se>, with minor changes by Steve]
7762 *) Make rsa_oaep_test return non-zero on error.
7763 [Ulf Moeller <ulf@fitug.de>]
7765 *) Add support for native Solaris shared libraries. Configure
7766 solaris-sparc-sc4-pic, make, then run shlib/solaris-sc4.sh. It'd be nice
7767 if someone would make that last step automatic.
7768 [Matthias Loepfe <Matthias.Loepfe@AdNovum.CH>]
7770 *) ctx_size was not built with the right compiler during "make links". Fixed.
7773 *) Change the meaning of 'ALL' in the cipher list. It now means "everything
7774 except NULL ciphers". This means the default cipher list will no longer
7775 enable NULL ciphers. They need to be specifically enabled e.g. with
7776 the string "DEFAULT:eNULL".
7779 *) Fix to RSA private encryption routines: if p < q then it would
7780 occasionally produce an invalid result. This will only happen with
7781 externally generated keys because OpenSSL (and SSLeay) ensure p > q.
7784 *) Be less restrictive and allow also `perl util/perlpath.pl
7785 /path/to/bin/perl' in addition to `perl util/perlpath.pl /path/to/bin',
7786 because this way one can also use an interpreter named `perl5' (which is
7787 usually the name of Perl 5.xxx on platforms where an Perl 4.x is still
7788 installed as `perl').
7789 [Matthias Loepfe <Matthias.Loepfe@adnovum.ch>]
7791 *) Let util/clean-depend.pl work also with older Perl 5.00x versions.
7792 [Matthias Loepfe <Matthias.Loepfe@adnovum.ch>]
7794 *) Fix Makefile.org so CC,CFLAG etc are passed to 'make links' add
7795 advapi32.lib to Win32 build and change the pem test comparision
7796 to fc.exe (thanks to Ulrich Kroener <kroneru@yahoo.com> for the
7797 suggestion). Fix misplaced ASNI prototypes and declarations in evp.h
7798 and crypto/des/ede_cbcm_enc.c.
7801 *) DES quad checksum was broken on big-endian architectures. Fixed.
7804 *) Comment out two functions in bio.h that aren't implemented. Fix up the
7805 Win32 test batch file so it (might) work again. The Win32 test batch file
7806 is horrible: I feel ill....
7809 *) Move various #ifdefs around so NO_SYSLOG, NO_DIRENT etc are now selected
7810 in e_os.h. Audit of header files to check ANSI and non ANSI
7811 sections: 10 functions were absent from non ANSI section and not exported
7812 from Windows DLLs. Fixed up libeay.num for new functions.
7815 *) Make `openssl version' output lines consistent.
7816 [Ralf S. Engelschall]
7818 *) Fix Win32 symbol export lists for BIO functions: Added
7819 BIO_get_ex_new_index, BIO_get_ex_num, BIO_get_ex_data and BIO_set_ex_data
7820 to ms/libeay{16,32}.def.
7821 [Ralf S. Engelschall]
7823 *) Second round of fixing the OpenSSL perl/ stuff. It now at least compiled
7824 fine under Unix and passes some trivial tests I've now added. But the
7825 whole stuff is horribly incomplete, so a README.1ST with a disclaimer was
7826 added to make sure no one expects that this stuff really works in the
7827 OpenSSL 0.9.2 release. Additionally I've started to clean the XS sources
7828 up and fixed a few little bugs and inconsistencies in OpenSSL.{pm,xs} and
7830 [Ralf S. Engelschall]
7832 *) Fix the generation of two part addresses in perl.
7833 [Kenji Miyake <kenji@miyake.org>, integrated by Ben Laurie]
7835 *) Add config entry for Linux on MIPS.
7836 [John Tobey <jtobey@channel1.com>]
7838 *) Make links whenever Configure is run, unless we are on Windoze.
7841 *) Permit extensions to be added to CRLs using crl_section in openssl.cnf.
7842 Currently only issuerAltName and AuthorityKeyIdentifier make any sense
7846 *) Add a useful kludge to allow package maintainers to specify compiler and
7847 other platforms details on the command line without having to patch the
7848 Configure script everytime: One now can use ``perl Configure
7849 <id>:<details>'', i.e. platform ids are allowed to have details appended
7850 to them (seperated by colons). This is treated as there would be a static
7851 pre-configured entry in Configure's %table under key <id> with value
7852 <details> and ``perl Configure <id>'' is called. So, when you want to
7853 perform a quick test-compile under FreeBSD 3.1 with pgcc and without
7854 assembler stuff you can use ``perl Configure "FreeBSD-elf:pgcc:-O6:::"''
7855 now, which overrides the FreeBSD-elf entry on-the-fly.
7856 [Ralf S. Engelschall]
7858 *) Disable new TLS1 ciphersuites by default: they aren't official yet.
7861 *) Allow DSO flags like -fpic, -fPIC, -KPIC etc. to be specified
7862 on the `perl Configure ...' command line. This way one can compile
7863 OpenSSL libraries with Position Independent Code (PIC) which is needed
7864 for linking it into DSOs.
7865 [Ralf S. Engelschall]
7867 *) Remarkably, export ciphers were totally broken and no-one had noticed!
7871 *) Cleaned up the LICENSE document: The official contact for any license
7872 questions now is the OpenSSL core team under openssl-core@openssl.org.
7873 And add a paragraph about the dual-license situation to make sure people
7874 recognize that _BOTH_ the OpenSSL license _AND_ the SSLeay license apply
7875 to the OpenSSL toolkit.
7876 [Ralf S. Engelschall]
7878 *) General source tree makefile cleanups: Made `making xxx in yyy...'
7879 display consistent in the source tree and replaced `/bin/rm' by `rm'.
7880 Additonally cleaned up the `make links' target: Remove unnecessary
7881 semicolons, subsequent redundant removes, inline point.sh into mklink.sh
7882 to speed processing and no longer clutter the display with confusing
7883 stuff. Instead only the actually done links are displayed.
7884 [Ralf S. Engelschall]
7886 *) Permit null encryption ciphersuites, used for authentication only. It used
7887 to be necessary to set the preprocessor define SSL_ALLOW_ENULL to do this.
7888 It is now necessary to set SSL_FORBID_ENULL to prevent the use of null
7892 *) Add a bunch of fixes to the PKCS#7 stuff. It used to sometimes reorder
7893 signed attributes when verifying signatures (this would break them),
7894 the detached data encoding was wrong and public keys obtained using
7895 X509_get_pubkey() weren't freed.
7898 *) Add text documentation for the BUFFER functions. Also added a work around
7899 to a Win95 console bug. This was triggered by the password read stuff: the
7900 last character typed gets carried over to the next fread(). If you were
7901 generating a new cert request using 'req' for example then the last
7902 character of the passphrase would be CR which would then enter the first
7906 *) Added the new `Includes OpenSSL Cryptography Software' button as
7907 doc/openssl_button.{gif,html} which is similar in style to the old SSLeay
7908 button and can be used by applications based on OpenSSL to show the
7909 relationship to the OpenSSL project.
7910 [Ralf S. Engelschall]
7912 *) Remove confusing variables in function signatures in files
7913 ssl/ssl_lib.c and ssl/ssl.h.
7914 [Lennart Bong <lob@kulthea.stacken.kth.se>]
7916 *) Don't install bss_file.c under PREFIX/include/
7917 [Lennart Bong <lob@kulthea.stacken.kth.se>]
7919 *) Get the Win32 compile working again. Modify mkdef.pl so it can handle
7920 functions that return function pointers and has support for NT specific
7921 stuff. Fix mk1mf.pl and VC-32.pl to support NT differences also. Various
7922 #ifdef WIN32 and WINNTs sprinkled about the place and some changes from
7923 unsigned to signed types: this was killing the Win32 compile.
7926 *) Add new certificate file to stack functions,
7927 SSL_add_dir_cert_subjects_to_stack() and
7928 SSL_add_file_cert_subjects_to_stack(). These largely supplant
7929 SSL_load_client_CA_file(), and can be used to add multiple certs easily
7930 to a stack (usually this is then handed to SSL_CTX_set_client_CA_list()).
7931 This means that Apache-SSL and similar packages don't have to mess around
7932 to add as many CAs as they want to the preferred list.
7935 *) Experiment with doxygen documentation. Currently only partially applied to
7937 See http://www.stack.nl/~dimitri/doxygen/index.html, and run doxygen with
7938 openssl.doxy as the configuration file.
7941 *) Get rid of remaining C++-style comments which strict C compilers hate.
7942 [Ralf S. Engelschall, pointed out by Carlos Amengual]
7944 *) Changed BN_RECURSION in bn_mont.c to BN_RECURSION_MONT so it is not
7945 compiled in by default: it has problems with large keys.
7948 *) Add a bunch of SSL_xxx() functions for configuring the temporary RSA and
7949 DH private keys and/or callback functions which directly correspond to
7950 their SSL_CTX_xxx() counterparts but work on a per-connection basis. This
7951 is needed for applications which have to configure certificates on a
7952 per-connection basis (e.g. Apache+mod_ssl) instead of a per-context basis
7954 For the RSA certificate situation is makes no difference, but
7955 for the DSA certificate situation this fixes the "no shared cipher"
7956 problem where the OpenSSL cipher selection procedure failed because the
7957 temporary keys were not overtaken from the context and the API provided
7958 no way to reconfigure them.
7959 The new functions now let applications reconfigure the stuff and they
7960 are in detail: SSL_need_tmp_RSA, SSL_set_tmp_rsa, SSL_set_tmp_dh,
7961 SSL_set_tmp_rsa_callback and SSL_set_tmp_dh_callback. Additionally a new
7962 non-public-API function ssl_cert_instantiate() is used as a helper
7963 function and also to reduce code redundancy inside ssl_rsa.c.
7964 [Ralf S. Engelschall]
7966 *) Move s_server -dcert and -dkey options out of the undocumented feature
7967 area because they are useful for the DSA situation and should be
7968 recognized by the users.
7969 [Ralf S. Engelschall]
7971 *) Fix the cipher decision scheme for export ciphers: the export bits are
7972 *not* within SSL_MKEY_MASK or SSL_AUTH_MASK, they are within
7973 SSL_EXP_MASK. So, the original variable has to be used instead of the
7974 already masked variable.
7975 [Richard Levitte <levitte@stacken.kth.se>]
7977 *) Fix 'port' variable from `int' to `unsigned int' in crypto/bio/b_sock.c
7978 [Richard Levitte <levitte@stacken.kth.se>]
7980 *) Change type of another md_len variable in pk7_doit.c:PKCS7_dataFinal()
7981 from `int' to `unsigned int' because it's a length and initialized by
7982 EVP_DigestFinal() which expects an `unsigned int *'.
7983 [Richard Levitte <levitte@stacken.kth.se>]
7985 *) Don't hard-code path to Perl interpreter on shebang line of Configure
7986 script. Instead use the usual Shell->Perl transition trick.
7987 [Ralf S. Engelschall]
7989 *) Make `openssl x509 -noout -modulus' functional also for DSA certificates
7990 (in addition to RSA certificates) to match the behaviour of `openssl dsa
7991 -noout -modulus' as it's already the case for `openssl rsa -noout
7992 -modulus'. For RSA the -modulus is the real "modulus" while for DSA
7993 currently the public key is printed (a decision which was already done by
7994 `openssl dsa -modulus' in the past) which serves a similar purpose.
7995 Additionally the NO_RSA no longer completely removes the whole -modulus
7996 option; it now only avoids using the RSA stuff. Same applies to NO_DSA
7998 [Ralf S. Engelschall]
8000 *) Add Arne Ansper's reliable BIO - this is an encrypted, block-digested
8001 BIO. See the source (crypto/evp/bio_ok.c) for more info.
8002 [Arne Ansper <arne@ats.cyber.ee>]
8004 *) Dump the old yucky req code that tried (and failed) to allow raw OIDs
8005 to be added. Now both 'req' and 'ca' can use new objects defined in the
8009 *) Add cool BIO that does syslog (or event log on NT).
8010 [Arne Ansper <arne@ats.cyber.ee>, integrated by Ben Laurie]
8012 *) Add support for new TLS ciphersuites, TLS_RSA_EXPORT56_WITH_RC4_56_MD5,
8013 TLS_RSA_EXPORT56_WITH_RC2_CBC_56_MD5 and
8014 TLS_RSA_EXPORT56_WITH_DES_CBC_SHA, as specified in "56-bit Export Cipher
8015 Suites For TLS", draft-ietf-tls-56-bit-ciphersuites-00.txt.
8018 *) Add preliminary config info for new extension code.
8021 *) Make RSA_NO_PADDING really use no padding.
8022 [Ulf Moeller <ulf@fitug.de>]
8024 *) Generate errors when private/public key check is done.
8027 *) Overhaul for 'crl' utility. New function X509_CRL_print. Partial support
8028 for some CRL extensions and new objects added.
8031 *) Really fix the ASN1 IMPLICIT bug this time... Partial support for private
8032 key usage extension and fuller support for authority key id.
8035 *) Add OAEP encryption for the OpenSSL crypto library. OAEP is the improved
8036 padding method for RSA, which is recommended for new applications in PKCS
8037 #1 v2.0 (RFC 2437, October 1998).
8038 OAEP (Optimal Asymmetric Encryption Padding) has better theoretical
8039 foundations than the ad-hoc padding used in PKCS #1 v1.5. It is secure
8040 against Bleichbacher's attack on RSA.
8041 [Ulf Moeller <ulf@fitug.de>, reformatted, corrected and integrated by
8044 *) Updates to the new SSL compression code
8045 [Eric A. Young, (from changes to C2Net SSLeay, integrated by Mark Cox)]
8047 *) Fix so that the version number in the master secret, when passed
8048 via RSA, checks that if TLS was proposed, but we roll back to SSLv3
8049 (because the server will not accept higher), that the version number
8050 is 0x03,0x01, not 0x03,0x00
8051 [Eric A. Young, (from changes to C2Net SSLeay, integrated by Mark Cox)]
8053 *) Run extensive memory leak checks on SSL apps. Fixed *lots* of memory
8054 leaks in ssl/ relating to new X509_get_pubkey() behaviour. Also fixes
8055 in apps/ and an unrelated leak in crypto/dsa/dsa_vrf.c
8058 *) Support for RAW extensions where an arbitrary extension can be
8059 created by including its DER encoding. See apps/openssl.cnf for
8063 *) Make sure latest Perl versions don't interpret some generated C array
8064 code as Perl array code in the crypto/err/err_genc.pl script.
8065 [Lars Weber <3weber@informatik.uni-hamburg.de>]
8067 *) Modify ms/do_ms.bat to not generate assembly language makefiles since
8068 not many people have the assembler. Various Win32 compilation fixes and
8069 update to the INSTALL.W32 file with (hopefully) more accurate Win32
8073 *) Modify configure script 'Configure' to automatically create crypto/date.h
8074 file under Win32 and also build pem.h from pem.org. New script
8075 util/mkfiles.pl to create the MINFO file on environments that can't do a
8076 'make files': perl util/mkfiles.pl >MINFO should work.
8079 *) Major rework of DES function declarations, in the pursuit of correctness
8080 and purity. As a result, many evil casts evaporated, and some weirdness,
8081 too. You may find this causes warnings in your code. Zapping your evil
8082 casts will probably fix them. Mostly.
8085 *) Fix for a typo in asn1.h. Bug fix to object creation script
8086 obj_dat.pl. It considered a zero in an object definition to mean
8087 "end of object": none of the objects in objects.h have any zeros
8088 so it wasn't spotted.
8089 [Steve Henson, reported by Erwann ABALEA <eabalea@certplus.com>]
8091 *) Add support for Triple DES Cipher Block Chaining with Output Feedback
8092 Masking (CBCM). In the absence of test vectors, the best I have been able
8093 to do is check that the decrypt undoes the encrypt, so far. Send me test
8094 vectors if you have them.
8097 *) Correct calculation of key length for export ciphers (too much space was
8098 allocated for null ciphers). This has not been tested!
8101 *) Modifications to the mkdef.pl for Win32 DEF file creation. The usage
8102 message is now correct (it understands "crypto" and "ssl" on its
8103 command line). There is also now an "update" option. This will update
8104 the util/ssleay.num and util/libeay.num files with any new functions.
8106 perl util/mkdef.pl crypto ssl update
8107 it will update them.
8110 *) Overhauled the Perl interface (perl/*):
8111 - ported BN stuff to OpenSSL's different BN library
8112 - made the perl/ source tree CVS-aware
8113 - renamed the package from SSLeay to OpenSSL (the files still contain
8114 their history because I've copied them in the repository)
8115 - removed obsolete files (the test scripts will be replaced
8116 by better Test::Harness variants in the future)
8117 [Ralf S. Engelschall]
8119 *) First cut for a very conservative source tree cleanup:
8120 1. merge various obsolete readme texts into doc/ssleay.txt
8121 where we collect the old documents and readme texts.
8122 2. remove the first part of files where I'm already sure that we no
8123 longer need them because of three reasons: either they are just temporary
8124 files which were left by Eric or they are preserved original files where
8125 I've verified that the diff is also available in the CVS via "cvs diff
8126 -rSSLeay_0_8_1b" or they were renamed (as it was definitely the case for
8127 the crypto/md/ stuff).
8128 [Ralf S. Engelschall]
8130 *) More extension code. Incomplete support for subject and issuer alt
8131 name, issuer and authority key id. Change the i2v function parameters
8132 and add an extra 'crl' parameter in the X509V3_CTX structure: guess
8133 what that's for :-) Fix to ASN1 macro which messed up
8134 IMPLICIT tag and add f_enum.c which adds a2i, i2a for ENUMERATED.
8137 *) Preliminary support for ENUMERATED type. This is largely copied from the
8141 *) Add new function, EVP_MD_CTX_copy() to replace frequent use of memcpy.
8142 [Eric A. Young, (from changes to C2Net SSLeay, integrated by Mark Cox)]
8144 *) Make sure `make rehash' target really finds the `openssl' program.
8145 [Ralf S. Engelschall, Matthias Loepfe <Matthias.Loepfe@adnovum.ch>]
8147 *) Squeeze another 7% of speed out of MD5 assembler, at least on a P2. I'd
8148 like to hear about it if this slows down other processors.
8151 *) Add CygWin32 platform information to Configure script.
8152 [Alan Batie <batie@aahz.jf.intel.com>]
8154 *) Fixed ms/32all.bat script: `no_asm' -> `no-asm'
8155 [Rainer W. Gerling <gerling@mpg-gv.mpg.de>]
8157 *) New program nseq to manipulate netscape certificate sequences
8160 *) Modify crl2pkcs7 so it supports multiple -certfile arguments. Fix a
8164 *) Fixes to BN code. Previously the default was to define BN_RECURSION
8165 but the BN code had some problems that would cause failures when
8166 doing certificate verification and some other functions.
8167 [Eric A. Young, (from changes to C2Net SSLeay, integrated by Mark Cox)]
8169 *) Add ASN1 and PEM code to support netscape certificate sequences.
8172 *) Add ASN1 and PEM code to support netscape certificate sequences.
8175 *) Add several PKIX and private extended key usage OIDs.
8178 *) Modify the 'ca' program to handle the new extension code. Modify
8179 openssl.cnf for new extension format, add comments.
8182 *) More X509 V3 changes. Fix typo in v3_bitstr.c. Add support to 'req'
8183 and add a sample to openssl.cnf so req -x509 now adds appropriate
8187 *) Continued X509 V3 changes. Add to other makefiles, integrate with the
8188 error code, add initial support to X509_print() and x509 application.
8191 *) Takes a deep breath and start addding X509 V3 extension support code. Add
8192 files in crypto/x509v3. Move original stuff to crypto/x509v3/old. All this
8193 stuff is currently isolated and isn't even compiled yet.
8196 *) Continuing patches for GeneralizedTime. Fix up certificate and CRL
8197 ASN1 to use ASN1_TIME and modify print routines to use ASN1_TIME_print.
8198 Removed the versions check from X509 routines when loading extensions:
8199 this allows certain broken certificates that don't set the version
8200 properly to be processed.
8203 *) Deal with irritating shit to do with dependencies, in YAAHW (Yet Another
8204 Ad Hoc Way) - Makefile.ssls now all contain local dependencies, which
8205 can still be regenerated with "make depend".
8208 *) Spelling mistake in C version of CAST-128.
8209 [Ben Laurie, reported by Jeremy Hylton <jeremy@cnri.reston.va.us>]
8211 *) Changes to the error generation code. The perl script err-code.pl
8212 now reads in the old error codes and retains the old numbers, only
8213 adding new ones if necessary. It also only changes the .err files if new
8214 codes are added. The makefiles have been modified to only insert errors
8215 when needed (to avoid needlessly modifying header files). This is done
8216 by only inserting errors if the .err file is newer than the auto generated
8217 C file. To rebuild all the error codes from scratch (the old behaviour)
8218 either modify crypto/Makefile.ssl to pass the -regen flag to err_code.pl
8219 or delete all the .err files.
8222 *) CAST-128 was incorrectly implemented for short keys. The C version has
8223 been fixed, but is untested. The assembler versions are also fixed, but
8224 new assembler HAS NOT BEEN GENERATED FOR WIN32 - the Makefile needs fixing
8225 to regenerate it if needed.
8226 [Ben Laurie, reported (with fix for C version) by Jun-ichiro itojun
8227 Hagino <itojun@kame.net>]
8229 *) File was opened incorrectly in randfile.c.
8230 [Ulf Möller <ulf@fitug.de>]
8232 *) Beginning of support for GeneralizedTime. d2i, i2d, check and print
8233 functions. Also ASN1_TIME suite which is a CHOICE of UTCTime or
8234 GeneralizedTime. ASN1_TIME is the proper type used in certificates et
8235 al: it's just almost always a UTCTime. Note this patch adds new error
8236 codes so do a "make errors" if there are problems.
8239 *) Correct Linux 1 recognition in config.
8240 [Ulf Möller <ulf@fitug.de>]
8242 *) Remove pointless MD5 hash when using DSA keys in ca.
8243 [Anonymous <nobody@replay.com>]
8245 *) Generate an error if given an empty string as a cert directory. Also
8246 generate an error if handed NULL (previously returned 0 to indicate an
8247 error, but didn't set one).
8248 [Ben Laurie, reported by Anonymous <nobody@replay.com>]
8250 *) Add prototypes to SSL methods. Make SSL_write's buffer const, at last.
8253 *) Fix the dummy function BN_ref_mod_exp() in rsaref.c to have the correct
8254 parameters. This was causing a warning which killed off the Win32 compile.
8257 *) Remove C++ style comments from crypto/bn/bn_local.h.
8258 [Neil Costigan <neil.costigan@celocom.com>]
8260 *) The function OBJ_txt2nid was broken. It was supposed to return a nid
8261 based on a text string, looking up short and long names and finally
8262 "dot" format. The "dot" format stuff didn't work. Added new function
8263 OBJ_txt2obj to do the same but return an ASN1_OBJECT and rewrote
8264 OBJ_txt2nid to use it. OBJ_txt2obj can also return objects even if the
8265 OID is not part of the table.
8268 *) Add prototypes to X509 lookup/verify methods, fixing a bug in
8269 X509_LOOKUP_by_alias().
8272 *) Sort openssl functions by name.
8275 *) Get the gendsa program working (hopefully) and add it to app list. Remove
8276 encryption from sample DSA keys (in case anyone is interested the password
8280 *) Make _all_ *_free functions accept a NULL pointer.
8281 [Frans Heymans <fheymans@isaserver.be>]
8283 *) If a DH key is generated in s3_srvr.c, don't blow it by trying to use
8285 [Anonymous <nobody@replay.com>]
8287 *) s_server should send the CAfile as acceptable CAs, not its own cert.
8288 [Bodo Moeller <3moeller@informatik.uni-hamburg.de>]
8290 *) Don't blow it for numeric -newkey arguments to apps/req.
8291 [Bodo Moeller <3moeller@informatik.uni-hamburg.de>]
8293 *) Temp key "for export" tests were wrong in s3_srvr.c.
8294 [Anonymous <nobody@replay.com>]
8296 *) Add prototype for temp key callback functions
8297 SSL_CTX_set_tmp_{rsa,dh}_callback().
8300 *) Make DH_free() tolerate being passed a NULL pointer (like RSA_free() and
8301 DSA_free()). Make X509_PUBKEY_set() check for errors in d2i_PublicKey().
8304 *) X509_name_add_entry() freed the wrong thing after an error.
8305 [Arne Ansper <arne@ats.cyber.ee>]
8307 *) rsa_eay.c would attempt to free a NULL context.
8308 [Arne Ansper <arne@ats.cyber.ee>]
8310 *) BIO_s_socket() had a broken should_retry() on Windoze.
8311 [Arne Ansper <arne@ats.cyber.ee>]
8313 *) BIO_f_buffer() didn't pass on BIO_CTRL_FLUSH.
8314 [Arne Ansper <arne@ats.cyber.ee>]
8316 *) Make sure the already existing X509_STORE->depth variable is initialized
8317 in X509_STORE_new(), but document the fact that this variable is still
8318 unused in the certificate verification process.
8319 [Ralf S. Engelschall]
8321 *) Fix the various library and apps files to free up pkeys obtained from
8322 X509_PUBKEY_get() et al. Also allow x509.c to handle netscape extensions.
8325 *) Fix reference counting in X509_PUBKEY_get(). This makes
8326 demos/maurice/example2.c work, amongst others, probably.
8327 [Steve Henson and Ben Laurie]
8329 *) First cut of a cleanup for apps/. First the `ssleay' program is now named
8330 `openssl' and second, the shortcut symlinks for the `openssl <command>'
8331 are no longer created. This way we have a single and consistent command
8332 line interface `openssl <command>', similar to `cvs <command>'.
8333 [Ralf S. Engelschall, Paul Sutton and Ben Laurie]
8335 *) ca.c: move test for DSA keys inside #ifndef NO_DSA. Make pubkey
8336 BIT STRING wrapper always have zero unused bits.
8339 *) Add CA.pl, perl version of CA.sh, add extended key usage OID.
8342 *) Make the top-level INSTALL documentation easier to understand.
8345 *) Makefiles updated to exit if an error occurs in a sub-directory
8346 make (including if user presses ^C) [Paul Sutton]
8348 *) Make Montgomery context stuff explicit in RSA data structure.
8351 *) Fix build order of pem and err to allow for generated pem.h.
8354 *) Fix renumbering bug in X509_NAME_delete_entry().
8357 *) Enhanced the err-ins.pl script so it makes the error library number
8358 global and can add a library name. This is needed for external ASN1 and
8359 other error libraries.
8362 *) Fixed sk_insert which never worked properly.
8365 *) Fix ASN1 macros so they can handle indefinite length construted
8366 EXPLICIT tags. Some non standard certificates use these: they can now
8370 *) Merged the various old/obsolete SSLeay documentation files (doc/xxx.doc)
8371 into a single doc/ssleay.txt bundle. This way the information is still
8372 preserved but no longer messes up this directory. Now it's new room for
8373 the new set of documenation files.
8374 [Ralf S. Engelschall]
8376 *) SETs were incorrectly DER encoded. This was a major pain, because they
8377 shared code with SEQUENCEs, which aren't coded the same. This means that
8378 almost everything to do with SETs or SEQUENCEs has either changed name or
8379 number of arguments.
8380 [Ben Laurie, based on a partial fix by GP Jayan <gp@nsj.co.jp>]
8382 *) Fix test data to work with the above.
8385 *) Fix the RSA header declarations that hid a bug I fixed in 0.9.0b but
8386 was already fixed by Eric for 0.9.1 it seems.
8387 [Ben Laurie - pointed out by Ulf Möller <ulf@fitug.de>]
8389 *) Autodetect FreeBSD3.
8392 *) Fix various bugs in Configure. This affects the following platforms:
8396 unixware-2.0-pentium
8400 *) Eliminate generated files from CVS. Reorder tests to regenerate files
8401 before they are needed.
8404 *) Generate Makefile.ssl from Makefile.org (to keep CVS happy).
8408 Changes between 0.9.1b and 0.9.1c [23-Dec-1998]
8410 *) Added OPENSSL_VERSION_NUMBER to crypto/crypto.h and
8411 changed SSLeay to OpenSSL in version strings.
8412 [Ralf S. Engelschall]
8414 *) Some fixups to the top-level documents.
8417 *) Fixed the nasty bug where rsaref.h was not found under compile-time
8418 because the symlink to include/ was missing.
8419 [Ralf S. Engelschall]
8421 *) Incorporated the popular no-RSA/DSA-only patches
8422 which allow to compile a RSA-free SSLeay.
8423 [Andrew Cooke / Interrader Ldt., Ralf S. Engelschall]
8425 *) Fixed nasty rehash problem under `make -f Makefile.ssl links'
8426 when "ssleay" is still not found.
8427 [Ralf S. Engelschall]
8429 *) Added more platforms to Configure: Cray T3E, HPUX 11,
8430 [Ralf S. Engelschall, Beckmann <beckman@acl.lanl.gov>]
8432 *) Updated the README file.
8433 [Ralf S. Engelschall]
8435 *) Added various .cvsignore files in the CVS repository subdirs
8436 to make a "cvs update" really silent.
8437 [Ralf S. Engelschall]
8439 *) Recompiled the error-definition header files and added
8440 missing symbols to the Win32 linker tables.
8441 [Ralf S. Engelschall]
8443 *) Cleaned up the top-level documents;
8444 o new files: CHANGES and LICENSE
8445 o merged VERSION, HISTORY* and README* files a CHANGES.SSLeay
8446 o merged COPYRIGHT into LICENSE
8447 o removed obsolete TODO file
8448 o renamed MICROSOFT to INSTALL.W32
8449 [Ralf S. Engelschall]
8451 *) Removed dummy files from the 0.9.1b source tree:
8452 crypto/asn1/x crypto/bio/cd crypto/bio/fg crypto/bio/grep crypto/bio/vi
8453 crypto/bn/asm/......add.c crypto/bn/asm/a.out crypto/dsa/f crypto/md5/f
8454 crypto/pem/gmon.out crypto/perlasm/f crypto/pkcs7/build crypto/rsa/f
8455 crypto/sha/asm/f crypto/threads/f ms/zzz ssl/f ssl/f.mak test/f
8456 util/f.mak util/pl/f util/pl/f.mak crypto/bf/bf_locl.old apps/f
8457 [Ralf S. Engelschall]
8459 *) Added various platform portability fixes.
8462 *) The Genesis of the OpenSSL rpject:
8463 We start with the latest (unreleased) SSLeay version 0.9.1b which Eric A.
8464 Young and Tim J. Hudson created while they were working for C2Net until
8466 [The OpenSSL Project]
8469 Changes between 0.9.0b and 0.9.1b [not released]
8471 *) Updated a few CA certificates under certs/
8474 *) Changed some BIGNUM api stuff.
8477 *) Various platform ports: OpenBSD, Ultrix, IRIX 64bit, NetBSD,
8478 DGUX x86, Linux Alpha, etc.
8481 *) New COMP library [crypto/comp/] for SSL Record Layer Compression:
8482 RLE (dummy implemented) and ZLIB (really implemented when ZLIB is
8486 *) Add -strparse option to asn1pars program which parses nested
8488 [Dr Stephen Henson <shenson@bigfoot.com>]
8490 *) Added "oid_file" to ssleay.cnf for "ca" and "req" programs.
8493 *) DSA fix for "ca" program.
8496 *) Added "-genkey" option to "dsaparam" program.
8499 *) Added RIPE MD160 (rmd160) message digest.
8502 *) Added -a (all) option to "ssleay version" command.
8505 *) Added PLATFORM define which is the id given to Configure.
8508 *) Added MemCheck_XXXX functions to crypto/mem.c for memory checking.
8511 *) Extended the ASN.1 parser routines.
8514 *) Extended BIO routines to support REUSEADDR, seek, tell, etc.
8517 *) Added a BN_CTX to the BN library.
8520 *) Fixed the weak key values in DES library
8523 *) Changed API in EVP library for cipher aliases.
8526 *) Added support for RC2/64bit cipher.
8529 *) Converted the lhash library to the crypto/mem.c functions.
8532 *) Added more recognized ASN.1 object ids.
8535 *) Added more RSA padding checks for SSL/TLS.
8538 *) Added BIO proxy/filter functionality.
8541 *) Added extra_certs to SSL_CTX which can be used
8542 send extra CA certificates to the client in the CA cert chain sending
8543 process. It can be configured with SSL_CTX_add_extra_chain_cert().
8546 *) Now Fortezza is denied in the authentication phase because
8547 this is key exchange mechanism is not supported by SSLeay at all.
8550 *) Additional PKCS1 checks.
8553 *) Support the string "TLSv1" for all TLS v1 ciphers.
8556 *) Added function SSL_get_ex_data_X509_STORE_CTX_idx() which gives the
8557 ex_data index of the SSL context in the X509_STORE_CTX ex_data.
8560 *) Fixed a few memory leaks.
8563 *) Fixed various code and comment typos.
8566 *) A minor bug in ssl/s3_clnt.c where there would always be 4 0
8567 bytes sent in the client random.
8568 [Edward Bishop <ebishop@spyglass.com>]
projects / openssl.git / blob