5 Changes between 0.9.8g and 0.9.9 [xx XXX xxxx]
7 *) Removed effectively defunct crypto/store from the build.
10 *) Revamp of STACK to provide stronger type-checking. Still to come:
11 TXT_DB, bsearch(?), OBJ_bsearch, qsort, CRYPTO_EX_DATA, ASN1_VALUE,
12 ASN1_STRING, CONF_VALUE.
15 *) Add a new SSL_MODE_RELEASE_BUFFERS mode flag to release unused buffer
16 RAM on SSL connections. This option can save about 34k per idle SSL.
19 *) Expand ENGINE to support engine supplied SSL client certificate functions.
22 *) Revamp of LHASH to provide stronger type-checking. Still to come:
23 STACK, TXT_DB, bsearch, qsort.
26 *) Not all of this is true any longer.
27 Will have to be updated to reflect all subsequent changes to cryptlib.c.
31 To support arbitrarily-typed thread IDs, deprecate the existing
32 type-specific APIs for a general purpose CRYPTO_THREADID
33 interface. Applications can choose the thread ID
34 callback type it wishes to register, as before;
36 void CRYPTO_set_id_callback(unsigned long (*func)(void));
37 void CRYPTO_set_idptr_callback(void *(*func)(void));
39 but retrieval, copies, and comparisons of thread IDs are via
40 type-independent interfaces;
42 void CRYPTO_THREADID_set(CRYPTO_THREADID *id);
43 void CRYPTO_THREADID_cmp(const CRYPTO_THREADID *id1,
44 const CRYPTO_THREADID *id2);
45 void CRYPTO_THREADID_cpy(CRYPTO_THREADID *dst,
46 const CRYPTO_THREADID *src);
48 Also, for code that needs a thread ID "value" for use in
49 hash-tables or logging, a "hash" is available by;
51 unsigned long CRYPTO_THREADID_hash(const CRYPTO_THREADID *id);
53 This hash value is likely to be the thread ID anyway, but
54 otherwise it will be unique if possible or as collision-free as
55 possible if uniqueness can't be guaranteed on the target
58 The following functions are deprecated;
59 unsigned long (*CRYPTO_get_id_callback(void))(void);
60 unsigned long CRYPTO_thread_id(void);
62 As a consequence of the above, there are similar deprecations of
63 BN_BLINDING functions in favour of CRYPTO_THREADID-based
66 #ifndef OPENSSL_NO_DEPRECATED
67 unsigned long BN_BLINDING_get_thread_id(const BN_BLINDING *);
68 void BN_BLINDING_set_thread_id(BN_BLINDING *, unsigned long);
70 void BN_BLINDING_set_thread(BN_BLINDING *);
71 int BN_BLINDING_cmp_thread(const BN_BLINDING *, const
74 Also, the ERR_remove_state(int pid) API has been deprecated;
76 #ifndef OPENSSL_NO_DEPRECATED
77 void ERR_remove_state(unsigned long pid)
79 void ERR_remove_thread_state(CRYPTO_THREADID *tid);
83 *) Initial support for Cryptographic Message Syntax (aka CMS) based
84 on RFC3850, RFC3851 and RFC3852. New cms directory and cms utility,
85 support for data, signedData, compressedData, digestedData and
86 encryptedData, envelopedData types included. Scripts to check against
87 RFC4134 examples draft and interop and consistency checks of many
88 content types and variants.
91 *) Add options to enc utility to support use of zlib compression BIO.
94 *) Extend mk1mf to support importing of options and assembly language
95 files from Configure script, currently only included in VC-WIN32.
96 The assembly language rules can now optionally generate the source
97 files from the associated perl scripts.
100 *) Implement remaining functionality needed to support GOST ciphersuites.
101 Interop testing has been performed using CryptoPro implementations.
102 [Victor B. Wagner <vitus@cryptocom.ru>]
104 *) s390x assembler pack.
107 *) ARMv4 assembler pack. ARMv4 refers to v4 and later ISA, not CPU
111 *) Implement Opaque PRF Input TLS extension as specified in
112 draft-rescorla-tls-opaque-prf-input-00.txt. Since this is not an
113 official specification yet and no extension type assignment by
114 IANA exists, this extension (for now) will have to be explicitly
115 enabled when building OpenSSL by providing the extension number
116 to use. For example, specify an option
118 -DTLSEXT_TYPE_opaque_prf_input=0x9527
120 to the "config" or "Configure" script to enable the extension,
121 assuming extension number 0x9527 (which is a completely arbitrary
122 and unofficial assignment based on the MD5 hash of the Internet
123 Draft). Note that by doing so, you potentially lose
124 interoperability with other TLS implementations since these might
125 be using the same extension number for other purposes.
127 SSL_set_tlsext_opaque_prf_input(ssl, src, len) is used to set the
128 opaque PRF input value to use in the handshake. This will create
129 an interal copy of the length-'len' string at 'src', and will
130 return non-zero for success.
132 To get more control and flexibility, provide a callback function
135 SSL_CTX_set_tlsext_opaque_prf_input_callback(ctx, cb)
136 SSL_CTX_set_tlsext_opaque_prf_input_callback_arg(ctx, arg)
140 int (*cb)(SSL *, void *peerinput, size_t len, void *arg);
143 Callback function 'cb' will be called in handshakes, and is
144 expected to use SSL_set_tlsext_opaque_prf_input() as appropriate.
145 Argument 'arg' is for application purposes (the value as given to
146 SSL_CTX_set_tlsext_opaque_prf_input_callback_arg() will directly
147 be provided to the callback function). The callback function
148 has to return non-zero to report success: usually 1 to use opaque
149 PRF input just if possible, or 2 to enforce use of the opaque PRF
150 input. In the latter case, the library will abort the handshake
151 if opaque PRF input is not successfully negotiated.
153 Arguments 'peerinput' and 'len' given to the callback function
154 will always be NULL and 0 in the case of a client. A server will
155 see the client's opaque PRF input through these variables if
156 available (NULL and 0 otherwise). Note that if the server
157 provides an opaque PRF input, the length must be the same as the
158 length of the client's opaque PRF input.
160 Note that the callback function will only be called when creating
161 a new session (session resumption can resume whatever was
162 previously negotiated), and will not be called in SSL 2.0
163 handshakes; thus, SSL_CTX_set_options(ctx, SSL_OP_NO_SSLv2) or
164 SSL_set_options(ssl, SSL_OP_NO_SSLv2) is especially recommended
165 for applications that need to enforce opaque PRF input.
169 *) Update ssl code to support digests other than SHA1+MD5 for handshake
172 [Victor B. Wagner <vitus@cryptocom.ru>]
174 *) Add RFC4507 support to OpenSSL. This includes the corrections in
175 RFC4507bis. The encrypted ticket format is an encrypted encoded
176 SSL_SESSION structure, that way new session features are automatically
179 If a client application caches session in an SSL_SESSION structure
180 support is transparent because tickets are now stored in the encoded
183 The SSL_CTX structure automatically generates keys for ticket
184 protection in servers so again support should be possible
185 with no application modification.
187 If a client or server wishes to disable RFC4507 support then the option
188 SSL_OP_NO_TICKET can be set.
190 Add a TLS extension debugging callback to allow the contents of any client
191 or server extensions to be examined.
193 This work was sponsored by Google.
196 *) Final changes to avoid use of pointer pointer casts in OpenSSL.
197 OpenSSL should now compile cleanly on gcc 4.2
198 [Peter Hartley <pdh@utter.chaos.org.uk>, Steve Henson]
200 *) Update SSL library to use new EVP_PKEY MAC API. Include generic MAC
201 support including streaming MAC support: this is required for GOST
203 [Victor B. Wagner <vitus@cryptocom.ru>, Steve Henson]
205 *) Add option -stream to use PKCS#7 streaming in smime utility. New
206 function i2d_PKCS7_bio_stream() and PEM_write_PKCS7_bio_stream()
207 to output in BER and PEM format.
210 *) Experimental support for use of HMAC via EVP_PKEY interface. This
211 allows HMAC to be handled via the EVP_DigestSign*() interface. The
212 EVP_PKEY "key" in this case is the HMAC key, potentially allowing
213 ENGINE support for HMAC keys which are unextractable. New -mac and
214 -macopt options to dgst utility.
217 *) New option -sigopt to dgst utility. Update dgst to use
218 EVP_Digest{Sign,Verify}*. These two changes make it possible to use
219 alternative signing paramaters such as X9.31 or PSS in the dgst
223 *) Change ssl_cipher_apply_rule(), the internal function that does
224 the work each time a ciphersuite string requests enabling
225 ("foo+bar"), moving ("+foo+bar"), disabling ("-foo+bar", or
226 removing ("!foo+bar") a class of ciphersuites: Now it maintains
227 the order of disabled ciphersuites such that those ciphersuites
228 that most recently went from enabled to disabled not only stay
229 in order with respect to each other, but also have higher priority
230 than other disabled ciphersuites the next time ciphersuites are
233 This means that you can now say, e.g., "PSK:-PSK:HIGH" to enable
234 the same ciphersuites as with "HIGH" alone, but in a specific
235 order where the PSK ciphersuites come first (since they are the
236 most recently disabled ciphersuites when "HIGH" is parsed).
238 Also, change ssl_create_cipher_list() (using this new
239 funcionality) such that between otherwise identical
240 cihpersuites, ephemeral ECDH is preferred over ephemeral DH in
244 *) Change ssl_create_cipher_list() so that it automatically
245 arranges the ciphersuites in reasonable order before starting
246 to process the rule string. Thus, the definition for "DEFAULT"
247 (SSL_DEFAULT_CIPHER_LIST) now is just "ALL:!aNULL:!eNULL", but
248 remains equivalent to "AES:ALL:!aNULL:!eNULL:+aECDH:+kRSA:+RC4:@STRENGTH".
249 This makes it much easier to arrive at a reasonable default order
250 in applications for which anonymous ciphers are OK (meaning
251 that you can't actually use DEFAULT).
252 [Bodo Moeller; suggested by Victor Duchovni]
254 *) Split the SSL/TLS algorithm mask (as used for ciphersuite string
255 processing) into multiple integers instead of setting
256 "SSL_MKEY_MASK" bits, "SSL_AUTH_MASK" bits, "SSL_ENC_MASK",
257 "SSL_MAC_MASK", and "SSL_SSL_MASK" bits all in a single integer.
258 (These masks as well as the individual bit definitions are hidden
259 away into the non-exported interface ssl/ssl_locl.h, so this
260 change to the definition of the SSL_CIPHER structure shouldn't
261 affect applications.) This give us more bits for each of these
262 categories, so there is no longer a need to coagulate AES128 and
263 AES256 into a single algorithm bit, and to coagulate Camellia128
264 and Camellia256 into a single algorithm bit, which has led to all
267 Thus, among other things, the kludge introduced in 0.9.7m and
268 0.9.8e for masking out AES256 independently of AES128 or masking
269 out Camellia256 independently of AES256 is not needed here in 0.9.9.
271 With the change, we also introduce new ciphersuite aliases that
272 so far were missing: "AES128", "AES256", "CAMELLIA128", and
276 *) Add support for dsa-with-SHA224 and dsa-with-SHA256.
277 Use the leftmost N bytes of the signature input if the input is
278 larger than the prime q (with N being the size in bytes of q).
281 *) Very *very* experimental PKCS#7 streaming encoder support. Nothing uses
282 it yet and it is largely untested.
285 *) Add support for the ecdsa-with-SHA224/256/384/512 signature types.
288 *) Initial incomplete changes to avoid need for function casts in OpenSSL
289 some compilers (gcc 4.2 and later) reject their use. Safestack is
290 reimplemented. Update ASN1 to avoid use of legacy functions.
293 *) Win32/64 targets are linked with Winsock2.
296 *) Add an X509_CRL_METHOD structure to allow CRL processing to be redirected
297 to external functions. This can be used to increase CRL handling
298 efficiency especially when CRLs are very large by (for example) storing
299 the CRL revoked certificates in a database.
302 *) Overhaul of by_dir code. Add support for dynamic loading of CRLs so
303 new CRLs added to a directory can be used. New command line option
304 -verify_return_error to s_client and s_server. This causes real errors
305 to be returned by the verify callback instead of carrying on no matter
306 what. This reflects the way a "real world" verify callback would behave.
309 *) GOST engine, supporting several GOST algorithms and public key formats.
310 Kindly donated by Cryptocom.
313 *) Partial support for Issuing Distribution Point CRL extension. CRLs
314 partitioned by DP are handled but no indirect CRL or reason partitioning
315 (yet). Complete overhaul of CRL handling: now the most suitable CRL is
316 selected via a scoring technique which handles IDP and AKID in CRLs.
319 *) New X509_STORE_CTX callbacks lookup_crls() and lookup_certs() which
320 will ultimately be used for all verify operations: this will remove the
321 X509_STORE dependency on certificate verification and allow alternative
322 lookup methods. X509_STORE based implementations of these two callbacks.
325 *) Allow multiple CRLs to exist in an X509_STORE with matching issuer names.
326 Modify get_crl() to find a valid (unexpired) CRL if possible.
329 *) New function X509_CRL_match() to check if two CRLs are identical. Normally
330 this would be called X509_CRL_cmp() but that name is already used by
331 a function that just compares CRL issuer names. Cache several CRL
332 extensions in X509_CRL structure and cache CRLDP in X509.
335 *) Store a "canonical" representation of X509_NAME structure (ASN1 Name)
336 this maps equivalent X509_NAME structures into a consistent structure.
337 Name comparison can then be performed rapidly using memcmp().
340 *) Non-blocking OCSP request processing. Add -timeout option to ocsp
344 *) Allow digests to supply their own micalg string for S/MIME type using
345 the ctrl EVP_MD_CTRL_MICALG.
348 *) During PKCS7 signing pass the PKCS7 SignerInfo structure to the
349 EVP_PKEY_METHOD before and after signing via the EVP_PKEY_CTRL_PKCS7_SIGN
350 ctrl. It can then customise the structure before and/or after signing
354 *) New function OBJ_add_sigid() to allow application defined signature OIDs
355 to be added to OpenSSLs internal tables. New function OBJ_sigid_free()
356 to free up any added signature OIDs.
359 *) New functions EVP_CIPHER_do_all(), EVP_CIPHER_do_all_sorted(),
360 EVP_MD_do_all() and EVP_MD_do_all_sorted() to enumerate internal
361 digest and cipher tables. New options added to openssl utility:
362 list-message-digest-algorithms and list-cipher-algorithms.
365 *) In addition to the numerical (unsigned long) thread ID, provide
366 for a pointer (void *) thread ID. This helps accomodate systems
367 that do not provide an unsigned long thread ID. OpenSSL assumes
368 it is in the same thread iff both the numerical and the pointer
369 thread ID agree; so applications are just required to define one
370 of them appropriately (e.g., by using a pointer to a per-thread
371 memory object malloc()ed by the application for the pointer-type
372 thread ID). Exactly analoguous to the existing functions
374 void CRYPTO_set_id_callback(unsigned long (*func)(void));
375 unsigned long (*CRYPTO_get_id_callback(void))(void);
376 unsigned long CRYPTO_thread_id(void);
378 we now have additional functions
380 void CRYPTO_set_idptr_callback(void *(*func)(void));
381 void *(*CRYPTO_get_idptr_callback(void))(void);
382 void *CRYPTO_thread_idptr(void);
384 also in <openssl/crypto.h>. The default value for
385 CRYPTO_thread_idptr() if the application has not provided its own
389 -- NOTE -- this change has been reverted and replaced with a
390 type-independent wrapper (ie. applications do not have to check
391 two type-specific thread ID representations as implied in this
392 change note). However, the "idptr" callback form described here
393 can still be registered. Please see the more recent CHANGES note
394 regarding CRYPTO_THREADID. [Geoff Thorpe]
397 *) Change the array representation of binary polynomials: the list
398 of degrees of non-zero coefficients is now terminated with -1.
399 Previously it was terminated with 0, which was also part of the
400 value; thus, the array representation was not applicable to
401 polynomials where t^0 has coefficient zero. This change makes
402 the array representation useful in a more general context.
405 *) Various modifications and fixes to SSL/TLS cipher string
406 handling. For ECC, the code now distinguishes between fixed ECDH
407 with RSA certificates on the one hand and with ECDSA certificates
408 on the other hand, since these are separate ciphersuites. The
409 unused code for Fortezza ciphersuites has been removed.
411 For consistency with EDH, ephemeral ECDH is now called "EECDH"
412 (not "ECDHE"). For consistency with the code for DH
413 certificates, use of ECDH certificates is now considered ECDH
414 authentication, not RSA or ECDSA authentication (the latter is
415 merely the CA's signing algorithm and not actively used in the
418 The temporary ciphersuite alias "ECCdraft" is no longer
419 available, and ECC ciphersuites are no longer excluded from "ALL"
420 and "DEFAULT". The following aliases now exist for RFC 4492
421 ciphersuites, most of these by analogy with the DH case:
423 kECDHr - ECDH cert, signed with RSA
424 kECDHe - ECDH cert, signed with ECDSA
425 kECDH - ECDH cert (signed with either RSA or ECDSA)
426 kEECDH - ephemeral ECDH
427 ECDH - ECDH cert or ephemeral ECDH
433 AECDH - anonymous ECDH
434 EECDH - non-anonymous ephemeral ECDH (equivalent to "kEECDH:-AECDH")
438 *) Add additional S/MIME capabilities for AES and GOST ciphers if supported.
439 Use correct micalg parameters depending on digest(s) in signed message.
442 *) Add engine support for EVP_PKEY_ASN1_METHOD. Add functions to process
443 an ENGINE asn1 method. Support ENGINE lookups in the ASN1 code.
446 *) Initial engine support for EVP_PKEY_METHOD. New functions to permit
447 an engine to register a method. Add ENGINE lookups for methods and
448 functional reference processing.
451 *) New functions EVP_Digest{Sign,Verify)*. These are enchance versions of
452 EVP_{Sign,Verify}* which allow an application to customise the signature
456 *) New -resign option to smime utility. This adds one or more signers
457 to an existing PKCS#7 signedData structure. Also -md option to use an
458 alternative message digest algorithm for signing.
461 *) Tidy up PKCS#7 routines and add new functions to make it easier to
462 create PKCS7 structures containing multiple signers. Update smime
463 application to support multiple signers.
466 *) New -macalg option to pkcs12 utility to allow setting of an alternative
470 *) Initial support for PKCS#5 v2.0 PRFs other than default SHA1 HMAC.
471 Reorganize PBE internals to lookup from a static table using NIDs,
472 add support for HMAC PBE OID translation. Add a EVP_CIPHER ctrl:
473 EVP_CTRL_PBE_PRF_NID this allows a cipher to specify an alternative
474 PRF which will be automatically used with PBES2.
477 *) Replace the algorithm specific calls to generate keys in "req" with the
481 *) Update PKCS#7 enveloped data routines to use new API. This is now
482 supported by any public key method supporting the encrypt operation. A
483 ctrl is added to allow the public key algorithm to examine or modify
484 the PKCS#7 RecipientInfo structure if it needs to: for RSA this is
488 *) Add a ctrl to asn1 method to allow a public key algorithm to express
489 a default digest type to use. In most cases this will be SHA1 but some
490 algorithms (such as GOST) need to specify an alternative digest. The
491 return value indicates how strong the prefernce is 1 means optional and
492 2 is mandatory (that is it is the only supported type). Modify
493 ASN1_item_sign() to accept a NULL digest argument to indicate it should
494 use the default md. Update openssl utilities to use the default digest
495 type for signing if it is not explicitly indicated.
498 *) Use OID cross reference table in ASN1_sign() and ASN1_verify(). New
499 EVP_MD flag EVP_MD_FLAG_PKEY_METHOD_SIGNATURE. This uses the relevant
500 signing method from the key type. This effectively removes the link
501 between digests and public key types.
504 *) Add an OID cross reference table and utility functions. Its purpose is to
505 translate between signature OIDs such as SHA1WithrsaEncryption and SHA1,
506 rsaEncryption. This will allow some of the algorithm specific hackery
507 needed to use the correct OID to be removed.
510 *) Remove algorithm specific dependencies when setting PKCS7_SIGNER_INFO
511 structures for PKCS7_sign(). They are now set up by the relevant public
515 *) Add provisional EC pkey method with support for ECDSA and ECDH.
518 *) Add support for key derivation (agreement) in the API, DH method and
522 *) Add DSA pkey method and DH pkey methods, extend DH ASN1 method to support
523 public and private key formats. As a side effect these add additional
524 command line functionality not previously available: DSA signatures can be
525 generated and verified using pkeyutl and DH key support and generation in
530 [Oliver Tappe <zooey@hirschkaefer.de>]
532 *) New make target "install_html_docs" installs HTML renditions of the
534 [Oliver Tappe <zooey@hirschkaefer.de>]
536 *) New utility "genpkey" this is analagous to "genrsa" etc except it can
537 generate keys for any algorithm. Extend and update EVP_PKEY_METHOD to
538 support key and parameter generation and add initial key generation
539 functionality for RSA.
542 *) Add functions for main EVP_PKEY_method operations. The undocumented
543 functions EVP_PKEY_{encrypt,decrypt} have been renamed to
544 EVP_PKEY_{encrypt,decrypt}_old.
547 *) Initial definitions for EVP_PKEY_METHOD. This will be a high level public
548 key API, doesn't do much yet.
551 *) New function EVP_PKEY_asn1_get0_info() to retrieve information about
552 public key algorithms. New option to openssl utility:
553 "list-public-key-algorithms" to print out info.
556 *) Implement the Supported Elliptic Curves Extension for
557 ECC ciphersuites from draft-ietf-tls-ecc-12.txt.
560 *) Don't free up OIDs in OBJ_cleanup() if they are in use by EVP_MD or
561 EVP_CIPHER structures to avoid later problems in EVP_cleanup().
564 *) New utilities pkey and pkeyparam. These are similar to algorithm specific
565 utilities such as rsa, dsa, dsaparam etc except they process any key
569 *) Transfer public key printing routines to EVP_PKEY_ASN1_METHOD. New
570 functions EVP_PKEY_print_public(), EVP_PKEY_print_private(),
571 EVP_PKEY_print_param() to print public key data from an EVP_PKEY
575 *) Initial support for pluggable public key ASN1.
576 De-spaghettify the public key ASN1 handling. Move public and private
577 key ASN1 handling to a new EVP_PKEY_ASN1_METHOD structure. Relocate
578 algorithm specific handling to a single module within the relevant
579 algorithm directory. Add functions to allow (near) opaque processing
580 of public and private key structures.
583 *) Implement the Supported Point Formats Extension for
584 ECC ciphersuites from draft-ietf-tls-ecc-12.txt.
587 *) Add initial support for RFC 4279 PSK TLS ciphersuites. Add members
588 for the psk identity [hint] and the psk callback functions to the
589 SSL_SESSION, SSL and SSL_CTX structure.
592 PSK-RC4-SHA, PSK-3DES-EDE-CBC-SHA, PSK-AES128-CBC-SHA,
596 SSL_CTX_use_psk_identity_hint
597 SSL_get_psk_identity_hint
599 SSL_use_psk_identity_hint
601 [Mika Kousa and Pasi Eronen of Nokia Corporation]
603 *) Add RFC 3161 compliant time stamp request creation, response generation
604 and response verification functionality.
605 [Zoltán Glózik <zglozik@opentsa.org>, The OpenTSA Project]
607 *) Add initial support for TLS extensions, specifically for the server_name
608 extension so far. The SSL_SESSION, SSL_CTX, and SSL data structures now
609 have new members for a host name. The SSL data structure has an
610 additional member SSL_CTX *initial_ctx so that new sessions can be
611 stored in that context to allow for session resumption, even after the
612 SSL has been switched to a new SSL_CTX in reaction to a client's
613 server_name extension.
615 New functions (subject to change):
618 SSL_get_servername_type()
621 New CTRL codes and macros (subject to change):
623 SSL_CTRL_SET_TLSEXT_SERVERNAME_CB
624 - SSL_CTX_set_tlsext_servername_callback()
625 SSL_CTRL_SET_TLSEXT_SERVERNAME_ARG
626 - SSL_CTX_set_tlsext_servername_arg()
627 SSL_CTRL_SET_TLSEXT_HOSTNAME - SSL_set_tlsext_host_name()
629 openssl s_client has a new '-servername ...' option.
631 openssl s_server has new options '-servername_host ...', '-cert2 ...',
632 '-key2 ...', '-servername_fatal' (subject to change). This allows
633 testing the HostName extension for a specific single host name ('-cert'
634 and '-key' remain fallbacks for handshakes without HostName
635 negotiation). If the unrecogninzed_name alert has to be sent, this by
636 default is a warning; it becomes fatal with the '-servername_fatal'
639 [Peter Sylvester, Remy Allais, Christophe Renou]
641 *) Whirlpool hash implementation is added.
644 *) BIGNUM code on 64-bit SPARCv9 targets is switched from bn(64,64) to
645 bn(64,32). Because of instruction set limitations it doesn't have
646 any negative impact on performance. This was done mostly in order
647 to make it possible to share assembler modules, such as bn_mul_mont
648 implementations, between 32- and 64-bit builds without hassle.
651 *) Move code previously exiled into file crypto/ec/ec2_smpt.c
652 to ec2_smpl.c, and no longer require the OPENSSL_EC_BIN_PT_COMP
656 *) New candidate for BIGNUM assembler implementation, bn_mul_mont,
657 dedicated Montgomery multiplication procedure, is introduced.
658 BN_MONT_CTX is modified to allow bn_mul_mont to reach for higher
659 "64-bit" performance on certain 32-bit targets.
662 *) New option SSL_OP_NO_COMP to disable use of compression selectively
663 in SSL structures. New SSL ctrl to set maximum send fragment size.
664 Save memory by seeting the I/O buffer sizes dynamically instead of
665 using the maximum available value.
668 *) New option -V for 'openssl ciphers'. This prints the ciphersuite code
669 in addition to the text details.
672 *) Very, very preliminary EXPERIMENTAL support for printing of general
673 ASN1 structures. This currently produces rather ugly output and doesn't
674 handle several customised structures at all.
677 *) Integrated support for PVK file format and some related formats such
678 as MS PUBLICKEYBLOB and PRIVATEKEYBLOB. Command line switches to support
679 these in the 'rsa' and 'dsa' utilities.
682 *) Support for PKCS#1 RSAPublicKey format on rsa utility command line.
685 *) Remove the ancient ASN1_METHOD code. This was only ever used in one
686 place for the (very old) "NETSCAPE" format certificates which are now
687 handled using new ASN1 code equivalents.
690 *) Let the TLSv1_method() etc. functions return a 'const' SSL_METHOD
691 pointer and make the SSL_METHOD parameter in SSL_CTX_new,
692 SSL_CTX_set_ssl_version and SSL_set_ssl_method 'const'.
695 *) Modify CRL distribution points extension code to print out previously
696 unsupported fields. Enhance extension setting code to allow setting of
700 *) Add print and set support for Issuing Distribution Point CRL extension.
703 *) Change 'Configure' script to enable Camellia by default.
706 Changes between 0.9.8g and 0.9.8h [28 May 2008]
708 *) Fix flaw if 'Server Key exchange message' is omitted from a TLS
709 handshake which could lead to a cilent crash as found using the
710 Codenomicon TLS test suite (CVE-2008-1672)
711 [Steve Henson, Mark Cox]
713 *) Fix double free in TLS server name extensions which could lead to
714 a remote crash found by Codenomicon TLS test suite (CVE-2008-0891)
717 *) Clear error queue in SSL_CTX_use_certificate_chain_file()
719 Clear the error queue to ensure that error entries left from
720 older function calls do not interfere with the correct operation.
721 [Lutz Jaenicke, Erik de Castro Lopo]
723 *) Remove root CA certificates of commercial CAs:
725 The OpenSSL project does not recommend any specific CA and does not
726 have any policy with respect to including or excluding any CA.
727 Therefore it does not make any sense to ship an arbitrary selection
728 of root CA certificates with the OpenSSL software.
731 *) RSA OAEP patches to fix two separate invalid memory reads.
732 The first one involves inputs when 'lzero' is greater than
733 'SHA_DIGEST_LENGTH' (it would read about SHA_DIGEST_LENGTH bytes
734 before the beginning of from). The second one involves inputs where
735 the 'db' section contains nothing but zeroes (there is a one-byte
736 invalid read after the end of 'db').
737 [Ivan Nestlerode <inestlerode@us.ibm.com>]
739 *) Add TLS session ticket callback. This allows an application to set
740 TLS ticket cipher and HMAC keys rather than relying on hardcoded fixed
741 values. This is useful for key rollover for example where several key
742 sets may exist with different names.
745 *) Reverse ENGINE-internal logic for caching default ENGINE handles.
746 This was broken until now in 0.9.8 releases, such that the only way
747 a registered ENGINE could be used (assuming it initialises
748 successfully on the host) was to explicitly set it as the default
749 for the relevant algorithms. This is in contradiction with 0.9.7
750 behaviour and the documentation. With this fix, when an ENGINE is
751 registered into a given algorithm's table of implementations, the
752 'uptodate' flag is reset so that auto-discovery will be used next
753 time a new context for that algorithm attempts to select an
755 [Ian Lister (tweaked by Geoff Thorpe)]
757 *) Update the GMP engine glue to do direct copies between BIGNUM and
758 mpz_t when openssl and GMP use the same limb size. Otherwise the
759 existing "conversion via a text string export" trick is still used.
760 [Paul Sheer <paulsheer@gmail.com>, Geoff Thorpe]
762 *) Zlib compression BIO. This is a filter BIO which compressed and
763 uncompresses any data passed through it.
766 *) Add AES_wrap_key() and AES_unwrap_key() functions to implement
767 RFC3394 compatible AES key wrapping.
770 *) Add utility functions to handle ASN1 structures. ASN1_STRING_set0():
771 sets string data without copying. X509_ALGOR_set0() and
772 X509_ALGOR_get0(): set and retrieve X509_ALGOR (AlgorithmIdentifier)
773 data. Attribute function X509at_get0_data_by_OBJ(): retrieves data
774 from an X509_ATTRIBUTE structure optionally checking it occurs only
775 once. ASN1_TYPE_set1(): set and ASN1_TYPE structure copying supplied
779 *) Fix BN flag handling in RSA_eay_mod_exp() and BN_MONT_CTX_set()
780 to get the expected BN_FLG_CONSTTIME behavior.
781 [Bodo Moeller (Google)]
785 - fixed wrong usage of ioctlsocket() when build for LIBC BSD sockets
786 - fixed do_tests.pl to run the test suite with CLIB builds too (CLIB_OPT)
787 - added some more tests to do_tests.pl
788 - fixed RunningProcess usage so that it works with newer LIBC NDKs too
789 - removed usage of BN_LLONG for CLIB builds to avoid runtime dependency
790 - added new Configure targets netware-clib-bsdsock, netware-clib-gcc,
791 netware-clib-bsdsock-gcc, netware-libc-bsdsock-gcc
792 - various changes to netware.pl to enable gcc-cross builds on Win32
794 - changed crypto/bio/b_sock.c to work with macro functions (CLIB BSD)
795 - various changes to fix missing prototype warnings
796 - fixed x86nasm.pl to create correct asm files for NASM COFF output
797 - added AES, WHIRLPOOL and CPUID assembler code to build files
798 - added missing AES assembler make rules to mk1mf.pl
799 - fixed order of includes in apps/ocsp.c so that e_os.h settings apply
800 [Guenter Knauf <eflash@gmx.net>]
802 *) Implement certificate status request TLS extension defined in RFC3546.
803 A client can set the appropriate parameters and receive the encoded
804 OCSP response via a callback. A server can query the supplied parameters
805 and set the encoded OCSP response in the callback. Add simplified examples
806 to s_client and s_server.
809 Changes between 0.9.8f and 0.9.8g [19 Oct 2007]
812 + Binary incompatibility of ssl_ctx_st structure
813 + DTLS interoperation with non-compliant servers
814 + Don't call get_session_cb() without proposed session
815 + Fix ia64 assembler code
816 [Andy Polyakov, Steve Henson]
818 Changes between 0.9.8e and 0.9.8f [11 Oct 2007]
820 *) DTLS Handshake overhaul. There were longstanding issues with
821 OpenSSL DTLS implementation, which were making it impossible for
822 RFC 4347 compliant client to communicate with OpenSSL server.
823 Unfortunately just fixing these incompatibilities would "cut off"
824 pre-0.9.8f clients. To allow for hassle free upgrade post-0.9.8e
825 server keeps tolerating non RFC compliant syntax. The opposite is
826 not true, 0.9.8f client can not communicate with earlier server.
827 This update even addresses CVE-2007-4995.
830 *) Changes to avoid need for function casts in OpenSSL: some compilers
831 (gcc 4.2 and later) reject their use.
832 [Kurt Roeckx <kurt@roeckx.be>, Peter Hartley <pdh@utter.chaos.org.uk>,
835 *) Add RFC4507 support to OpenSSL. This includes the corrections in
836 RFC4507bis. The encrypted ticket format is an encrypted encoded
837 SSL_SESSION structure, that way new session features are automatically
840 If a client application caches session in an SSL_SESSION structure
841 support is transparent because tickets are now stored in the encoded
844 The SSL_CTX structure automatically generates keys for ticket
845 protection in servers so again support should be possible
846 with no application modification.
848 If a client or server wishes to disable RFC4507 support then the option
849 SSL_OP_NO_TICKET can be set.
851 Add a TLS extension debugging callback to allow the contents of any client
852 or server extensions to be examined.
854 This work was sponsored by Google.
857 *) Add initial support for TLS extensions, specifically for the server_name
858 extension so far. The SSL_SESSION, SSL_CTX, and SSL data structures now
859 have new members for a host name. The SSL data structure has an
860 additional member SSL_CTX *initial_ctx so that new sessions can be
861 stored in that context to allow for session resumption, even after the
862 SSL has been switched to a new SSL_CTX in reaction to a client's
863 server_name extension.
865 New functions (subject to change):
868 SSL_get_servername_type()
871 New CTRL codes and macros (subject to change):
873 SSL_CTRL_SET_TLSEXT_SERVERNAME_CB
874 - SSL_CTX_set_tlsext_servername_callback()
875 SSL_CTRL_SET_TLSEXT_SERVERNAME_ARG
876 - SSL_CTX_set_tlsext_servername_arg()
877 SSL_CTRL_SET_TLSEXT_HOSTNAME - SSL_set_tlsext_host_name()
879 openssl s_client has a new '-servername ...' option.
881 openssl s_server has new options '-servername_host ...', '-cert2 ...',
882 '-key2 ...', '-servername_fatal' (subject to change). This allows
883 testing the HostName extension for a specific single host name ('-cert'
884 and '-key' remain fallbacks for handshakes without HostName
885 negotiation). If the unrecogninzed_name alert has to be sent, this by
886 default is a warning; it becomes fatal with the '-servername_fatal'
889 [Peter Sylvester, Remy Allais, Christophe Renou, Steve Henson]
891 *) Add AES and SSE2 assembly language support to VC++ build.
894 *) Mitigate attack on final subtraction in Montgomery reduction.
897 *) Fix crypto/ec/ec_mult.c to work properly with scalars of value 0
898 (which previously caused an internal error).
901 *) Squeeze another 10% out of IGE mode when in != out.
904 *) AES IGE mode speedup.
905 [Dean Gaudet (Google)]
907 *) Add the Korean symmetric 128-bit cipher SEED (see
908 http://www.kisa.or.kr/kisa/seed/jsp/seed_eng.jsp) and
909 add SEED ciphersuites from RFC 4162:
911 TLS_RSA_WITH_SEED_CBC_SHA = "SEED-SHA"
912 TLS_DHE_DSS_WITH_SEED_CBC_SHA = "DHE-DSS-SEED-SHA"
913 TLS_DHE_RSA_WITH_SEED_CBC_SHA = "DHE-RSA-SEED-SHA"
914 TLS_DH_anon_WITH_SEED_CBC_SHA = "ADH-SEED-SHA"
916 To minimize changes between patchlevels in the OpenSSL 0.9.8
917 series, SEED remains excluded from compilation unless OpenSSL
918 is configured with 'enable-seed'.
921 *) Mitigate branch prediction attacks, which can be practical if a
922 single processor is shared, allowing a spy process to extract
923 information. For detailed background information, see
924 http://eprint.iacr.org/2007/039 (O. Aciicmez, S. Gueron,
925 J.-P. Seifert, "New Branch Prediction Vulnerabilities in OpenSSL
926 and Necessary Software Countermeasures"). The core of the change
927 are new versions BN_div_no_branch() and
928 BN_mod_inverse_no_branch() of BN_div() and BN_mod_inverse(),
929 respectively, which are slower, but avoid the security-relevant
930 conditional branches. These are automatically called by BN_div()
931 and BN_mod_inverse() if the flag BN_FLG_CONSTTIME is set for one
932 of the input BIGNUMs. Also, BN_is_bit_set() has been changed to
933 remove a conditional branch.
935 BN_FLG_CONSTTIME is the new name for the previous
936 BN_FLG_EXP_CONSTTIME flag, since it now affects more than just
937 modular exponentiation. (Since OpenSSL 0.9.7h, setting this flag
938 in the exponent causes BN_mod_exp_mont() to use the alternative
939 implementation in BN_mod_exp_mont_consttime().) The old name
940 remains as a deprecated alias.
942 Similary, RSA_FLAG_NO_EXP_CONSTTIME is replaced by a more general
943 RSA_FLAG_NO_CONSTTIME flag since the RSA implementation now uses
944 constant-time implementations for more than just exponentiation.
945 Here too the old name is kept as a deprecated alias.
947 BN_BLINDING_new() will now use BN_dup() for the modulus so that
948 the BN_BLINDING structure gets an independent copy of the
949 modulus. This means that the previous "BIGNUM *m" argument to
950 BN_BLINDING_new() and to BN_BLINDING_create_param() now
951 essentially becomes "const BIGNUM *m", although we can't actually
952 change this in the header file before 0.9.9. It allows
953 RSA_setup_blinding() to use BN_with_flags() on the modulus to
954 enable BN_FLG_CONSTTIME.
956 [Matthew D Wood (Intel Corp)]
958 *) In the SSL/TLS server implementation, be strict about session ID
959 context matching (which matters if an application uses a single
960 external cache for different purposes). Previously,
961 out-of-context reuse was forbidden only if SSL_VERIFY_PEER was
962 set. This did ensure strict client verification, but meant that,
963 with applications using a single external cache for quite
964 different requirements, clients could circumvent ciphersuite
965 restrictions for a given session ID context by starting a session
966 in a different context.
969 *) Include "!eNULL" in SSL_DEFAULT_CIPHER_LIST to make sure that
970 a ciphersuite string such as "DEFAULT:RSA" cannot enable
971 authentication-only ciphersuites.
974 Changes between 0.9.8d and 0.9.8e [23 Feb 2007]
976 *) Since AES128 and AES256 (and similarly Camellia128 and
977 Camellia256) share a single mask bit in the logic of
978 ssl/ssl_ciph.c, the code for masking out disabled ciphers needs a
979 kludge to work properly if AES128 is available and AES256 isn't
980 (or if Camellia128 is available and Camellia256 isn't).
983 *) Fix the BIT STRING encoding generated by crypto/ec/ec_asn1.c
984 (within i2d_ECPrivateKey, i2d_ECPKParameters, i2d_ECParameters):
985 When a point or a seed is encoded in a BIT STRING, we need to
986 prevent the removal of trailing zero bits to get the proper DER
987 encoding. (By default, crypto/asn1/a_bitstr.c assumes the case
988 of a NamedBitList, for which trailing 0 bits need to be removed.)
991 *) Have SSL/TLS server implementation tolerate "mismatched" record
992 protocol version while receiving ClientHello even if the
993 ClientHello is fragmented. (The server can't insist on the
994 particular protocol version it has chosen before the ServerHello
995 message has informed the client about his choice.)
998 *) Add RFC 3779 support.
999 [Rob Austein for ARIN, Ben Laurie]
1001 *) Load error codes if they are not already present instead of using a
1002 static variable. This allows them to be cleanly unloaded and reloaded.
1003 Improve header file function name parsing.
1006 *) extend SMTP and IMAP protocol emulation in s_client to use EHLO
1007 or CAPABILITY handshake as required by RFCs.
1010 Changes between 0.9.8c and 0.9.8d [28 Sep 2006]
1012 *) Introduce limits to prevent malicious keys being able to
1013 cause a denial of service. (CVE-2006-2940)
1014 [Steve Henson, Bodo Moeller]
1016 *) Fix ASN.1 parsing of certain invalid structures that can result
1017 in a denial of service. (CVE-2006-2937) [Steve Henson]
1019 *) Fix buffer overflow in SSL_get_shared_ciphers() function.
1020 (CVE-2006-3738) [Tavis Ormandy and Will Drewry, Google Security Team]
1022 *) Fix SSL client code which could crash if connecting to a
1023 malicious SSLv2 server. (CVE-2006-4343)
1024 [Tavis Ormandy and Will Drewry, Google Security Team]
1026 *) Since 0.9.8b, ciphersuite strings naming explicit ciphersuites
1027 match only those. Before that, "AES256-SHA" would be interpreted
1028 as a pattern and match "AES128-SHA" too (since AES128-SHA got
1029 the same strength classification in 0.9.7h) as we currently only
1030 have a single AES bit in the ciphersuite description bitmap.
1031 That change, however, also applied to ciphersuite strings such as
1032 "RC4-MD5" that intentionally matched multiple ciphersuites --
1033 namely, SSL 2.0 ciphersuites in addition to the more common ones
1034 from SSL 3.0/TLS 1.0.
1036 So we change the selection algorithm again: Naming an explicit
1037 ciphersuite selects this one ciphersuite, and any other similar
1038 ciphersuite (same bitmap) from *other* protocol versions.
1039 Thus, "RC4-MD5" again will properly select both the SSL 2.0
1040 ciphersuite and the SSL 3.0/TLS 1.0 ciphersuite.
1042 Since SSL 2.0 does not have any ciphersuites for which the
1043 128/256 bit distinction would be relevant, this works for now.
1044 The proper fix will be to use different bits for AES128 and
1045 AES256, which would have avoided the problems from the beginning;
1046 however, bits are scarce, so we can only do this in a new release
1047 (not just a patchlevel) when we can change the SSL_CIPHER
1048 definition to split the single 'unsigned long mask' bitmap into
1049 multiple values to extend the available space.
1053 Changes between 0.9.8b and 0.9.8c [05 Sep 2006]
1055 *) Avoid PKCS #1 v1.5 signature attack discovered by Daniel Bleichenbacher
1056 (CVE-2006-4339) [Ben Laurie and Google Security Team]
1058 *) Add AES IGE and biIGE modes.
1061 *) Change the Unix randomness entropy gathering to use poll() when
1062 possible instead of select(), since the latter has some
1063 undesirable limitations.
1064 [Darryl Miles via Richard Levitte and Bodo Moeller]
1066 *) Disable "ECCdraft" ciphersuites more thoroughly. Now special
1067 treatment in ssl/ssl_ciph.s makes sure that these ciphersuites
1068 cannot be implicitly activated as part of, e.g., the "AES" alias.
1069 However, please upgrade to OpenSSL 0.9.9[-dev] for
1070 non-experimental use of the ECC ciphersuites to get TLS extension
1071 support, which is required for curve and point format negotiation
1072 to avoid potential handshake problems.
1075 *) Disable rogue ciphersuites:
1077 - SSLv2 0x08 0x00 0x80 ("RC4-64-MD5")
1078 - SSLv3/TLSv1 0x00 0x61 ("EXP1024-RC2-CBC-MD5")
1079 - SSLv3/TLSv1 0x00 0x60 ("EXP1024-RC4-MD5")
1081 The latter two were purportedly from
1082 draft-ietf-tls-56-bit-ciphersuites-0[01].txt, but do not really
1085 Also deactivate the remaining ciphersuites from
1086 draft-ietf-tls-56-bit-ciphersuites-01.txt. These are just as
1087 unofficial, and the ID has long expired.
1090 *) Fix RSA blinding Heisenbug (problems sometimes occured on
1091 dual-core machines) and other potential thread-safety issues.
1094 *) Add the symmetric cipher Camellia (128-bit, 192-bit, 256-bit key
1095 versions), which is now available for royalty-free use
1096 (see http://info.isl.ntt.co.jp/crypt/eng/info/chiteki.html).
1097 Also, add Camellia TLS ciphersuites from RFC 4132.
1099 To minimize changes between patchlevels in the OpenSSL 0.9.8
1100 series, Camellia remains excluded from compilation unless OpenSSL
1101 is configured with 'enable-camellia'.
1104 *) Disable the padding bug check when compression is in use. The padding
1105 bug check assumes the first packet is of even length, this is not
1106 necessarily true if compresssion is enabled and can result in false
1107 positives causing handshake failure. The actual bug test is ancient
1108 code so it is hoped that implementations will either have fixed it by
1109 now or any which still have the bug do not support compression.
1112 Changes between 0.9.8a and 0.9.8b [04 May 2006]
1114 *) When applying a cipher rule check to see if string match is an explicit
1115 cipher suite and only match that one cipher suite if it is.
1118 *) Link in manifests for VC++ if needed.
1119 [Austin Ziegler <halostatue@gmail.com>]
1121 *) Update support for ECC-based TLS ciphersuites according to
1122 draft-ietf-tls-ecc-12.txt with proposed changes (but without
1123 TLS extensions, which are supported starting with the 0.9.9
1124 branch, not in the OpenSSL 0.9.8 branch).
1127 *) New functions EVP_CIPHER_CTX_new() and EVP_CIPHER_CTX_free() to support
1128 opaque EVP_CIPHER_CTX handling.
1131 *) Fixes and enhancements to zlib compression code. We now only use
1132 "zlib1.dll" and use the default __cdecl calling convention on Win32
1133 to conform with the standards mentioned here:
1134 http://www.zlib.net/DLL_FAQ.txt
1135 Static zlib linking now works on Windows and the new --with-zlib-include
1136 --with-zlib-lib options to Configure can be used to supply the location
1137 of the headers and library. Gracefully handle case where zlib library
1141 *) Several fixes and enhancements to the OID generation code. The old code
1142 sometimes allowed invalid OIDs (1.X for X >= 40 for example), couldn't
1143 handle numbers larger than ULONG_MAX, truncated printing and had a
1144 non standard OBJ_obj2txt() behaviour.
1147 *) Add support for building of engines under engine/ as shared libraries
1148 under VC++ build system.
1151 *) Corrected the numerous bugs in the Win32 path splitter in DSO.
1152 Hopefully, we will not see any false combination of paths any more.
1155 Changes between 0.9.8 and 0.9.8a [11 Oct 2005]
1157 *) Remove the functionality of SSL_OP_MSIE_SSLV2_RSA_PADDING
1158 (part of SSL_OP_ALL). This option used to disable the
1159 countermeasure against man-in-the-middle protocol-version
1160 rollback in the SSL 2.0 server implementation, which is a bad
1161 idea. (CVE-2005-2969)
1163 [Bodo Moeller; problem pointed out by Yutaka Oiwa (Research Center
1164 for Information Security, National Institute of Advanced Industrial
1165 Science and Technology [AIST], Japan)]
1167 *) Add two function to clear and return the verify parameter flags.
1170 *) Keep cipherlists sorted in the source instead of sorting them at
1171 runtime, thus removing the need for a lock.
1174 *) Avoid some small subgroup attacks in Diffie-Hellman.
1175 [Nick Mathewson and Ben Laurie]
1177 *) Add functions for well-known primes.
1180 *) Extended Windows CE support.
1181 [Satoshi Nakamura and Andy Polyakov]
1183 *) Initialize SSL_METHOD structures at compile time instead of during
1184 runtime, thus removing the need for a lock.
1187 *) Make PKCS7_decrypt() work even if no certificate is supplied by
1188 attempting to decrypt each encrypted key in turn. Add support to
1192 Changes between 0.9.7h and 0.9.8 [05 Jul 2005]
1194 [NB: OpenSSL 0.9.7i and later 0.9.7 patch levels were released after
1197 *) Add libcrypto.pc and libssl.pc for those who feel they need them.
1200 *) Change CA.sh and CA.pl so they don't bundle the CSR and the private
1201 key into the same file any more.
1204 *) Add initial support for Win64, both IA64 and AMD64/x64 flavors.
1207 *) Add -utf8 command line and config file option to 'ca'.
1208 [Stefan <stf@udoma.org]
1210 *) Removed the macro des_crypt(), as it seems to conflict with some
1211 libraries. Use DES_crypt().
1214 *) Correct naming of the 'chil' and '4758cca' ENGINEs. This
1215 involves renaming the source and generated shared-libs for
1216 both. The engines will accept the corrected or legacy ids
1217 ('ncipher' and '4758_cca' respectively) when binding. NB,
1218 this only applies when building 'shared'.
1219 [Corinna Vinschen <vinschen@redhat.com> and Geoff Thorpe]
1221 *) Add attribute functions to EVP_PKEY structure. Modify
1222 PKCS12_create() to recognize a CSP name attribute and
1223 use it. Make -CSP option work again in pkcs12 utility.
1226 *) Add new functionality to the bn blinding code:
1227 - automatic re-creation of the BN_BLINDING parameters after
1228 a fixed number of uses (currently 32)
1229 - add new function for parameter creation
1230 - introduce flags to control the update behaviour of the
1231 BN_BLINDING parameters
1232 - hide BN_BLINDING structure
1233 Add a second BN_BLINDING slot to the RSA structure to improve
1234 performance when a single RSA object is shared among several
1238 *) Add support for DTLS.
1239 [Nagendra Modadugu <nagendra@cs.stanford.edu> and Ben Laurie]
1241 *) Add support for DER encoded private keys (SSL_FILETYPE_ASN1)
1242 to SSL_CTX_use_PrivateKey_file() and SSL_use_PrivateKey_file()
1245 *) Remove buggy and incompletet DH cert support from
1246 ssl/ssl_rsa.c and ssl/s3_both.c
1249 *) Use SHA-1 instead of MD5 as the default digest algorithm for
1250 the apps/openssl applications.
1253 *) Compile clean with "-Wall -Wmissing-prototypes
1254 -Wstrict-prototypes -Wmissing-declarations -Werror". Currently
1255 DEBUG_SAFESTACK must also be set.
1258 *) Change ./Configure so that certain algorithms can be disabled by default.
1259 The new counterpiece to "no-xxx" is "enable-xxx".
1261 The patented RC5 and MDC2 algorithms will now be disabled unless
1262 "enable-rc5" and "enable-mdc2", respectively, are specified.
1264 (IDEA remains enabled despite being patented. This is because IDEA
1265 is frequently required for interoperability, and there is no license
1266 fee for non-commercial use. As before, "no-idea" can be used to
1267 avoid this algorithm.)
1271 *) Add processing of proxy certificates (see RFC 3820). This work was
1272 sponsored by KTH (The Royal Institute of Technology in Stockholm) and
1273 EGEE (Enabling Grids for E-science in Europe).
1276 *) RC4 performance overhaul on modern architectures/implementations, such
1277 as Intel P4, IA-64 and AMD64.
1280 *) New utility extract-section.pl. This can be used specify an alternative
1281 section number in a pod file instead of having to treat each file as
1282 a separate case in Makefile. This can be done by adding two lines to the
1285 =for comment openssl_section:XXX
1287 The blank line is mandatory.
1291 *) New arguments -certform, -keyform and -pass for s_client and s_server
1292 to allow alternative format key and certificate files and passphrase
1296 *) New structure X509_VERIFY_PARAM which combines current verify parameters,
1297 update associated structures and add various utility functions.
1299 Add new policy related verify parameters, include policy checking in
1300 standard verify code. Enhance 'smime' application with extra parameters
1301 to support policy checking and print out.
1304 *) Add a new engine to support VIA PadLock ACE extensions in the VIA C3
1305 Nehemiah processors. These extensions support AES encryption in hardware
1306 as well as RNG (though RNG support is currently disabled).
1307 [Michal Ludvig <michal@logix.cz>, with help from Andy Polyakov]
1309 *) Deprecate BN_[get|set]_params() functions (they were ignored internally).
1312 *) New FIPS 180-2 algorithms, SHA-224/-256/-384/-512 are implemented.
1313 [Andy Polyakov and a number of other people]
1315 *) Improved PowerPC platform support. Most notably BIGNUM assembler
1316 implementation contributed by IBM.
1317 [Suresh Chari, Peter Waltenberg, Andy Polyakov]
1319 *) The new 'RSA_generate_key_ex' function now takes a BIGNUM for the public
1320 exponent rather than 'unsigned long'. There is a corresponding change to
1321 the new 'rsa_keygen' element of the RSA_METHOD structure.
1322 [Jelte Jansen, Geoff Thorpe]
1324 *) Functionality for creating the initial serial number file is now
1325 moved from CA.pl to the 'ca' utility with a new option -create_serial.
1327 (Before OpenSSL 0.9.7e, CA.pl used to initialize the serial
1328 number file to 1, which is bound to cause problems. To avoid
1329 the problems while respecting compatibility between different 0.9.7
1330 patchlevels, 0.9.7e employed 'openssl x509 -next_serial' in
1331 CA.pl for serial number initialization. With the new release 0.9.8,
1332 we can fix the problem directly in the 'ca' utility.)
1335 *) Reduced header interdepencies by declaring more opaque objects in
1336 ossl_typ.h. As a consequence, including some headers (eg. engine.h) will
1337 give fewer recursive includes, which could break lazy source code - so
1338 this change is covered by the OPENSSL_NO_DEPRECATED symbol. As always,
1339 developers should define this symbol when building and using openssl to
1340 ensure they track the recommended behaviour, interfaces, [etc], but
1341 backwards-compatible behaviour prevails when this isn't defined.
1344 *) New function X509_POLICY_NODE_print() which prints out policy nodes.
1347 *) Add new EVP function EVP_CIPHER_CTX_rand_key and associated functionality.
1348 This will generate a random key of the appropriate length based on the
1349 cipher context. The EVP_CIPHER can provide its own random key generation
1350 routine to support keys of a specific form. This is used in the des and
1351 3des routines to generate a key of the correct parity. Update S/MIME
1352 code to use new functions and hence generate correct parity DES keys.
1353 Add EVP_CHECK_DES_KEY #define to return an error if the key is not
1354 valid (weak or incorrect parity).
1357 *) Add a local set of CRLs that can be used by X509_verify_cert() as well
1358 as looking them up. This is useful when the verified structure may contain
1359 CRLs, for example PKCS#7 signedData. Modify PKCS7_verify() to use any CRLs
1360 present unless the new PKCS7_NO_CRL flag is asserted.
1363 *) Extend ASN1 oid configuration module. It now additionally accepts the
1366 shortName = some long name, 1.2.3.4
1369 *) Reimplemented the BN_CTX implementation. There is now no more static
1370 limitation on the number of variables it can handle nor the depth of the
1371 "stack" handling for BN_CTX_start()/BN_CTX_end() pairs. The stack
1372 information can now expand as required, and rather than having a single
1373 static array of bignums, BN_CTX now uses a linked-list of such arrays
1374 allowing it to expand on demand whilst maintaining the usefulness of
1375 BN_CTX's "bundling".
1378 *) Add a missing BN_CTX parameter to the 'rsa_mod_exp' callback in RSA_METHOD
1379 to allow all RSA operations to function using a single BN_CTX.
1382 *) Preliminary support for certificate policy evaluation and checking. This
1383 is initially intended to pass the tests outlined in "Conformance Testing
1384 of Relying Party Client Certificate Path Processing Logic" v1.07.
1387 *) bn_dup_expand() has been deprecated, it was introduced in 0.9.7 and
1388 remained unused and not that useful. A variety of other little bignum
1389 tweaks and fixes have also been made continuing on from the audit (see
1393 *) Constify all or almost all d2i, c2i, s2i and r2i functions, along with
1394 associated ASN1, EVP and SSL functions and old ASN1 macros.
1397 *) BN_zero() only needs to set 'top' and 'neg' to zero for correct results,
1398 and this should never fail. So the return value from the use of
1399 BN_set_word() (which can fail due to needless expansion) is now deprecated;
1400 if OPENSSL_NO_DEPRECATED is defined, BN_zero() is a void macro.
1403 *) BN_CTX_get() should return zero-valued bignums, providing the same
1404 initialised value as BN_new().
1405 [Geoff Thorpe, suggested by Ulf Möller]
1407 *) Support for inhibitAnyPolicy certificate extension.
1410 *) An audit of the BIGNUM code is underway, for which debugging code is
1411 enabled when BN_DEBUG is defined. This makes stricter enforcements on what
1412 is considered valid when processing BIGNUMs, and causes execution to
1413 assert() when a problem is discovered. If BN_DEBUG_RAND is defined,
1414 further steps are taken to deliberately pollute unused data in BIGNUM
1415 structures to try and expose faulty code further on. For now, openssl will
1416 (in its default mode of operation) continue to tolerate the inconsistent
1417 forms that it has tolerated in the past, but authors and packagers should
1418 consider trying openssl and their own applications when compiled with
1419 these debugging symbols defined. It will help highlight potential bugs in
1420 their own code, and will improve the test coverage for OpenSSL itself. At
1421 some point, these tighter rules will become openssl's default to improve
1422 maintainability, though the assert()s and other overheads will remain only
1423 in debugging configurations. See bn.h for more details.
1424 [Geoff Thorpe, Nils Larsch, Ulf Möller]
1426 *) BN_CTX_init() has been deprecated, as BN_CTX is an opaque structure
1427 that can only be obtained through BN_CTX_new() (which implicitly
1428 initialises it). The presence of this function only made it possible
1429 to overwrite an existing structure (and cause memory leaks).
1432 *) Because of the callback-based approach for implementing LHASH as a
1433 template type, lh_insert() adds opaque objects to hash-tables and
1434 lh_doall() or lh_doall_arg() are typically used with a destructor callback
1435 to clean up those corresponding objects before destroying the hash table
1436 (and losing the object pointers). So some over-zealous constifications in
1437 LHASH have been relaxed so that lh_insert() does not take (nor store) the
1438 objects as "const" and the lh_doall[_arg] callback wrappers are not
1439 prototyped to have "const" restrictions on the object pointers they are
1440 given (and so aren't required to cast them away any more).
1443 *) The tmdiff.h API was so ugly and minimal that our own timing utility
1444 (speed) prefers to use its own implementation. The two implementations
1445 haven't been consolidated as yet (volunteers?) but the tmdiff API has had
1446 its object type properly exposed (MS_TM) instead of casting to/from "char
1447 *". This may still change yet if someone realises MS_TM and "ms_time_***"
1448 aren't necessarily the greatest nomenclatures - but this is what was used
1449 internally to the implementation so I've used that for now.
1452 *) Ensure that deprecated functions do not get compiled when
1453 OPENSSL_NO_DEPRECATED is defined. Some "openssl" subcommands and a few of
1454 the self-tests were still using deprecated key-generation functions so
1455 these have been updated also.
1458 *) Reorganise PKCS#7 code to separate the digest location functionality
1459 into PKCS7_find_digest(), digest addtion into PKCS7_bio_add_digest().
1460 New function PKCS7_set_digest() to set the digest type for PKCS#7
1461 digestedData type. Add additional code to correctly generate the
1462 digestedData type and add support for this type in PKCS7 initialization
1466 *) New function PKCS7_set0_type_other() this initializes a PKCS7
1467 structure of type "other".
1470 *) Fix prime generation loop in crypto/bn/bn_prime.pl by making
1471 sure the loop does correctly stop and breaking ("division by zero")
1472 modulus operations are not performed. The (pre-generated) prime
1473 table crypto/bn/bn_prime.h was already correct, but it could not be
1474 re-generated on some platforms because of the "division by zero"
1475 situation in the script.
1476 [Ralf S. Engelschall]
1478 *) Update support for ECC-based TLS ciphersuites according to
1479 draft-ietf-tls-ecc-03.txt: the KDF1 key derivation function with
1480 SHA-1 now is only used for "small" curves (where the
1481 representation of a field element takes up to 24 bytes); for
1482 larger curves, the field element resulting from ECDH is directly
1483 used as premaster secret.
1484 [Douglas Stebila (Sun Microsystems Laboratories)]
1486 *) Add code for kP+lQ timings to crypto/ec/ectest.c, and add SEC2
1487 curve secp160r1 to the tests.
1488 [Douglas Stebila (Sun Microsystems Laboratories)]
1490 *) Add the possibility to load symbols globally with DSO.
1491 [Götz Babin-Ebell <babin-ebell@trustcenter.de> via Richard Levitte]
1493 *) Add the functions ERR_set_mark() and ERR_pop_to_mark() for better
1494 control of the error stack.
1497 *) Add support for STORE in ENGINE.
1500 *) Add the STORE type. The intention is to provide a common interface
1501 to certificate and key stores, be they simple file-based stores, or
1502 HSM-type store, or LDAP stores, or...
1503 NOTE: The code is currently UNTESTED and isn't really used anywhere.
1506 *) Add a generic structure called OPENSSL_ITEM. This can be used to
1507 pass a list of arguments to any function as well as provide a way
1508 for a function to pass data back to the caller.
1511 *) Add the functions BUF_strndup() and BUF_memdup(). BUF_strndup()
1512 works like BUF_strdup() but can be used to duplicate a portion of
1513 a string. The copy gets NUL-terminated. BUF_memdup() duplicates
1517 *) Add the function sk_find_ex() which works like sk_find(), but will
1518 return an index to an element even if an exact match couldn't be
1519 found. The index is guaranteed to point at the element where the
1520 searched-for key would be inserted to preserve sorting order.
1523 *) Add the function OBJ_bsearch_ex() which works like OBJ_bsearch() but
1524 takes an extra flags argument for optional functionality. Currently,
1525 the following flags are defined:
1527 OBJ_BSEARCH_VALUE_ON_NOMATCH
1528 This one gets OBJ_bsearch_ex() to return a pointer to the first
1529 element where the comparing function returns a negative or zero
1532 OBJ_BSEARCH_FIRST_VALUE_ON_MATCH
1533 This one gets OBJ_bsearch_ex() to return a pointer to the first
1534 element where the comparing function returns zero. This is useful
1535 if there are more than one element where the comparing function
1539 *) Make it possible to create self-signed certificates with 'openssl ca'
1540 in such a way that the self-signed certificate becomes part of the
1541 CA database and uses the same mechanisms for serial number generation
1542 as all other certificate signing. The new flag '-selfsign' enables
1543 this functionality. Adapt CA.sh and CA.pl.in.
1546 *) Add functionality to check the public key of a certificate request
1547 against a given private. This is useful to check that a certificate
1548 request can be signed by that key (self-signing).
1551 *) Make it possible to have multiple active certificates with the same
1552 subject in the CA index file. This is done only if the keyword
1553 'unique_subject' is set to 'no' in the main CA section (default
1554 if 'CA_default') of the configuration file. The value is saved
1555 with the database itself in a separate index attribute file,
1556 named like the index file with '.attr' appended to the name.
1559 *) Generate muti valued AVAs using '+' notation in config files for
1563 *) Support for nameConstraints certificate extension.
1566 *) Support for policyConstraints certificate extension.
1569 *) Support for policyMappings certificate extension.
1572 *) Make sure the default DSA_METHOD implementation only uses its
1573 dsa_mod_exp() and/or bn_mod_exp() handlers if they are non-NULL,
1574 and change its own handlers to be NULL so as to remove unnecessary
1575 indirection. This lets alternative implementations fallback to the
1576 default implementation more easily.
1579 *) Support for directoryName in GeneralName related extensions
1583 *) Make it possible to link applications using Makefile.shared.
1584 Make that possible even when linking against static libraries!
1587 *) Support for single pass processing for S/MIME signing. This now
1588 means that S/MIME signing can be done from a pipe, in addition
1589 cleartext signing (multipart/signed type) is effectively streaming
1590 and the signed data does not need to be all held in memory.
1592 This is done with a new flag PKCS7_STREAM. When this flag is set
1593 PKCS7_sign() only initializes the PKCS7 structure and the actual signing
1594 is done after the data is output (and digests calculated) in
1595 SMIME_write_PKCS7().
1598 *) Add full support for -rpath/-R, both in shared libraries and
1599 applications, at least on the platforms where it's known how
1603 *) In crypto/ec/ec_mult.c, implement fast point multiplication with
1604 precomputation, based on wNAF splitting: EC_GROUP_precompute_mult()
1605 will now compute a table of multiples of the generator that
1606 makes subsequent invocations of EC_POINTs_mul() or EC_POINT_mul()
1607 faster (notably in the case of a single point multiplication,
1608 scalar * generator).
1609 [Nils Larsch, Bodo Moeller]
1611 *) IPv6 support for certificate extensions. The various extensions
1612 which use the IP:a.b.c.d can now take IPv6 addresses using the
1613 formats of RFC1884 2.2 . IPv6 addresses are now also displayed
1617 *) Added an ENGINE that implements RSA by performing private key
1618 exponentiations with the GMP library. The conversions to and from
1619 GMP's mpz_t format aren't optimised nor are any montgomery forms
1620 cached, and on x86 it appears OpenSSL's own performance has caught up.
1621 However there are likely to be other architectures where GMP could
1622 provide a boost. This ENGINE is not built in by default, but it can be
1623 specified at Configure time and should be accompanied by the necessary
1624 linker additions, eg;
1625 ./config -DOPENSSL_USE_GMP -lgmp
1628 *) "openssl engine" will not display ENGINE/DSO load failure errors when
1629 testing availability of engines with "-t" - the old behaviour is
1630 produced by increasing the feature's verbosity with "-tt".
1633 *) ECDSA routines: under certain error conditions uninitialized BN objects
1634 could be freed. Solution: make sure initialization is performed early
1635 enough. (Reported and fix supplied by Nils Larsch <nla@trustcenter.de>
1639 *) Key-generation can now be implemented in RSA_METHOD, DSA_METHOD
1640 and DH_METHOD (eg. by ENGINE implementations) to override the normal
1641 software implementations. For DSA and DH, parameter generation can
1642 also be overriden by providing the appropriate method callbacks.
1645 *) Change the "progress" mechanism used in key-generation and
1646 primality testing to functions that take a new BN_GENCB pointer in
1647 place of callback/argument pairs. The new API functions have "_ex"
1648 postfixes and the older functions are reimplemented as wrappers for
1649 the new ones. The OPENSSL_NO_DEPRECATED symbol can be used to hide
1650 declarations of the old functions to help (graceful) attempts to
1651 migrate to the new functions. Also, the new key-generation API
1652 functions operate on a caller-supplied key-structure and return
1653 success/failure rather than returning a key or NULL - this is to
1654 help make "keygen" another member function of RSA_METHOD etc.
1656 Example for using the new callback interface:
1658 int (*my_callback)(int a, int b, BN_GENCB *cb) = ...;
1662 BN_GENCB_set(&my_cb, my_callback, my_arg);
1664 return BN_is_prime_ex(some_bignum, BN_prime_checks, NULL, &cb);
1665 /* For the meaning of a, b in calls to my_callback(), see the
1666 * documentation of the function that calls the callback.
1667 * cb will point to my_cb; my_arg can be retrieved as cb->arg.
1668 * my_callback should return 1 if it wants BN_is_prime_ex()
1669 * to continue, or 0 to stop.
1674 *) Change the ZLIB compression method to be stateful, and make it
1675 available to TLS with the number defined in
1676 draft-ietf-tls-compression-04.txt.
1679 *) Add the ASN.1 structures and functions for CertificatePair, which
1680 is defined as follows (according to X.509_4thEditionDraftV6.pdf):
1682 CertificatePair ::= SEQUENCE {
1683 forward [0] Certificate OPTIONAL,
1684 reverse [1] Certificate OPTIONAL,
1685 -- at least one of the pair shall be present -- }
1687 Also implement the PEM functions to read and write certificate
1688 pairs, and defined the PEM tag as "CERTIFICATE PAIR".
1690 This needed to be defined, mostly for the sake of the LDAP
1691 attribute crossCertificatePair, but may prove useful elsewhere as
1695 *) Make it possible to inhibit symlinking of shared libraries in
1696 Makefile.shared, for Cygwin's sake.
1699 *) Extend the BIGNUM API by creating a function
1700 void BN_set_negative(BIGNUM *a, int neg);
1701 and a macro that behave like
1702 int BN_is_negative(const BIGNUM *a);
1704 to avoid the need to access 'a->neg' directly in applications.
1707 *) Implement fast modular reduction for pseudo-Mersenne primes
1708 used in NIST curves (crypto/bn/bn_nist.c, crypto/ec/ecp_nist.c).
1709 EC_GROUP_new_curve_GFp() will now automatically use this
1711 [Nils Larsch <nla@trustcenter.de>]
1713 *) Add new lock type (CRYPTO_LOCK_BN).
1716 *) Change the ENGINE framework to automatically load engines
1717 dynamically from specific directories unless they could be
1718 found to already be built in or loaded. Move all the
1719 current engines except for the cryptodev one to a new
1721 The engines in engines/ are built as shared libraries if
1722 the "shared" options was given to ./Configure or ./config.
1723 Otherwise, they are inserted in libcrypto.a.
1724 /usr/local/ssl/engines is the default directory for dynamic
1725 engines, but that can be overriden at configure time through
1726 the usual use of --prefix and/or --openssldir, and at run
1727 time with the environment variable OPENSSL_ENGINES.
1728 [Geoff Thorpe and Richard Levitte]
1730 *) Add Makefile.shared, a helper makefile to build shared
1731 libraries. Addapt Makefile.org.
1734 *) Add version info to Win32 DLLs.
1735 [Peter 'Luna' Runestig" <peter@runestig.com>]
1737 *) Add new 'medium level' PKCS#12 API. Certificates and keys
1738 can be added using this API to created arbitrary PKCS#12
1739 files while avoiding the low level API.
1741 New options to PKCS12_create(), key or cert can be NULL and
1742 will then be omitted from the output file. The encryption
1743 algorithm NIDs can be set to -1 for no encryption, the mac
1744 iteration count can be set to 0 to omit the mac.
1746 Enhance pkcs12 utility by making the -nokeys and -nocerts
1747 options work when creating a PKCS#12 file. New option -nomac
1748 to omit the mac, NONE can be set for an encryption algorithm.
1749 New code is modified to use the enhanced PKCS12_create()
1750 instead of the low level API.
1753 *) Extend ASN1 encoder to support indefinite length constructed
1754 encoding. This can output sequences tags and octet strings in
1755 this form. Modify pk7_asn1.c to support indefinite length
1756 encoding. This is experimental and needs additional code to
1757 be useful, such as an ASN1 bio and some enhanced streaming
1760 Extend template encode functionality so that tagging is passed
1761 down to the template encoder.
1764 *) Let 'openssl req' fail if an argument to '-newkey' is not
1765 recognized instead of using RSA as a default.
1768 *) Add support for ECC-based ciphersuites from draft-ietf-tls-ecc-01.txt.
1769 As these are not official, they are not included in "ALL";
1770 the "ECCdraft" ciphersuite group alias can be used to select them.
1771 [Vipul Gupta and Sumit Gupta (Sun Microsystems Laboratories)]
1773 *) Add ECDH engine support.
1774 [Nils Gura and Douglas Stebila (Sun Microsystems Laboratories)]
1776 *) Add ECDH in new directory crypto/ecdh/.
1777 [Douglas Stebila (Sun Microsystems Laboratories)]
1779 *) Let BN_rand_range() abort with an error after 100 iterations
1780 without success (which indicates a broken PRNG).
1783 *) Change BN_mod_sqrt() so that it verifies that the input value
1784 is really the square of the return value. (Previously,
1785 BN_mod_sqrt would show GIGO behaviour.)
1788 *) Add named elliptic curves over binary fields from X9.62, SECG,
1789 and WAP/WTLS; add OIDs that were still missing.
1791 [Sheueling Chang Shantz and Douglas Stebila
1792 (Sun Microsystems Laboratories)]
1794 *) Extend the EC library for elliptic curves over binary fields
1795 (new files ec2_smpl.c, ec2_smpt.c, ec2_mult.c in crypto/ec/).
1798 EC_GF2m_simple_method
1802 EC_GROUP_new_curve_GF2m
1803 EC_GROUP_set_curve_GF2m
1804 EC_GROUP_get_curve_GF2m
1805 EC_POINT_set_affine_coordinates_GF2m
1806 EC_POINT_get_affine_coordinates_GF2m
1807 EC_POINT_set_compressed_coordinates_GF2m
1809 Point compression for binary fields is disabled by default for
1810 patent reasons (compile with OPENSSL_EC_BIN_PT_COMP defined to
1813 As binary polynomials are represented as BIGNUMs, various members
1814 of the EC_GROUP and EC_POINT data structures can be shared
1815 between the implementations for prime fields and binary fields;
1816 the above ..._GF2m functions (except for EX_GROUP_new_curve_GF2m)
1817 are essentially identical to their ..._GFp counterparts.
1818 (For simplicity, the '..._GFp' prefix has been dropped from
1819 various internal method names.)
1821 An internal 'field_div' method (similar to 'field_mul' and
1822 'field_sqr') has been added; this is used only for binary fields.
1824 [Sheueling Chang Shantz and Douglas Stebila
1825 (Sun Microsystems Laboratories)]
1827 *) Optionally dispatch EC_POINT_mul(), EC_POINT_precompute_mult()
1828 through methods ('mul', 'precompute_mult').
1830 The generic implementations (now internally called 'ec_wNAF_mul'
1831 and 'ec_wNAF_precomputed_mult') remain the default if these
1832 methods are undefined.
1834 [Sheueling Chang Shantz and Douglas Stebila
1835 (Sun Microsystems Laboratories)]
1837 *) New function EC_GROUP_get_degree, which is defined through
1838 EC_METHOD. For curves over prime fields, this returns the bit
1839 length of the modulus.
1841 [Sheueling Chang Shantz and Douglas Stebila
1842 (Sun Microsystems Laboratories)]
1844 *) New functions EC_GROUP_dup, EC_POINT_dup.
1845 (These simply call ..._new and ..._copy).
1847 [Sheueling Chang Shantz and Douglas Stebila
1848 (Sun Microsystems Laboratories)]
1850 *) Add binary polynomial arithmetic software in crypto/bn/bn_gf2m.c.
1851 Polynomials are represented as BIGNUMs (where the sign bit is not
1852 used) in the following functions [macros]:
1855 BN_GF2m_sub [= BN_GF2m_add]
1856 BN_GF2m_mod [wrapper for BN_GF2m_mod_arr]
1857 BN_GF2m_mod_mul [wrapper for BN_GF2m_mod_mul_arr]
1858 BN_GF2m_mod_sqr [wrapper for BN_GF2m_mod_sqr_arr]
1860 BN_GF2m_mod_exp [wrapper for BN_GF2m_mod_exp_arr]
1861 BN_GF2m_mod_sqrt [wrapper for BN_GF2m_mod_sqrt_arr]
1862 BN_GF2m_mod_solve_quad [wrapper for BN_GF2m_mod_solve_quad_arr]
1863 BN_GF2m_cmp [= BN_ucmp]
1865 (Note that only the 'mod' functions are actually for fields GF(2^m).
1866 BN_GF2m_add() is misnomer, but this is for the sake of consistency.)
1868 For some functions, an the irreducible polynomial defining a
1869 field can be given as an 'unsigned int[]' with strictly
1870 decreasing elements giving the indices of those bits that are set;
1871 i.e., p[] represents the polynomial
1872 f(t) = t^p[0] + t^p[1] + ... + t^p[k]
1874 p[0] > p[1] > ... > p[k] = 0.
1875 This applies to the following functions:
1880 BN_GF2m_mod_inv_arr [wrapper for BN_GF2m_mod_inv]
1881 BN_GF2m_mod_div_arr [wrapper for BN_GF2m_mod_div]
1883 BN_GF2m_mod_sqrt_arr
1884 BN_GF2m_mod_solve_quad_arr
1888 Conversion can be performed by the following functions:
1893 bntest.c has additional tests for binary polynomial arithmetic.
1895 Two implementations for BN_GF2m_mod_div() are available.
1896 The default algorithm simply uses BN_GF2m_mod_inv() and
1897 BN_GF2m_mod_mul(). The alternative algorithm is compiled in only
1898 if OPENSSL_SUN_GF2M_DIV is defined (patent pending; read the
1899 copyright notice in crypto/bn/bn_gf2m.c before enabling it).
1901 [Sheueling Chang Shantz and Douglas Stebila
1902 (Sun Microsystems Laboratories)]
1904 *) Add new error code 'ERR_R_DISABLED' that can be used when some
1905 functionality is disabled at compile-time.
1906 [Douglas Stebila <douglas.stebila@sun.com>]
1908 *) Change default behaviour of 'openssl asn1parse' so that more
1909 information is visible when viewing, e.g., a certificate:
1911 Modify asn1_parse2 (crypto/asn1/asn1_par.c) so that in non-'dump'
1912 mode the content of non-printable OCTET STRINGs is output in a
1913 style similar to INTEGERs, but with '[HEX DUMP]' prepended to
1914 avoid the appearance of a printable string.
1915 [Nils Larsch <nla@trustcenter.de>]
1917 *) Add 'asn1_flag' and 'asn1_form' member to EC_GROUP with access
1919 EC_GROUP_set_asn1_flag()
1920 EC_GROUP_get_asn1_flag()
1921 EC_GROUP_set_point_conversion_form()
1922 EC_GROUP_get_point_conversion_form()
1923 These control ASN1 encoding details:
1924 - Curves (i.e., groups) are encoded explicitly unless asn1_flag
1925 has been set to OPENSSL_EC_NAMED_CURVE.
1926 - Points are encoded in uncompressed form by default; options for
1927 asn1_for are as for point2oct, namely
1928 POINT_CONVERSION_COMPRESSED
1929 POINT_CONVERSION_UNCOMPRESSED
1930 POINT_CONVERSION_HYBRID
1932 Also add 'seed' and 'seed_len' members to EC_GROUP with access
1935 EC_GROUP_get0_seed()
1936 EC_GROUP_get_seed_len()
1937 This is used only for ASN1 purposes (so far).
1938 [Nils Larsch <nla@trustcenter.de>]
1940 *) Add 'field_type' member to EC_METHOD, which holds the NID
1941 of the appropriate field type OID. The new function
1942 EC_METHOD_get_field_type() returns this value.
1943 [Nils Larsch <nla@trustcenter.de>]
1948 EC_POINT_point2hex()
1949 EC_POINT_hex2point()
1950 providing useful interfaces to EC_POINT_point2oct() and
1951 EC_POINT_oct2point().
1952 [Nils Larsch <nla@trustcenter.de>]
1954 *) Change internals of the EC library so that the functions
1955 EC_GROUP_set_generator()
1956 EC_GROUP_get_generator()
1957 EC_GROUP_get_order()
1958 EC_GROUP_get_cofactor()
1959 are implemented directly in crypto/ec/ec_lib.c and not dispatched
1960 to methods, which would lead to unnecessary code duplication when
1961 adding different types of curves.
1962 [Nils Larsch <nla@trustcenter.de> with input by Bodo Moeller]
1964 *) Implement compute_wNAF (crypto/ec/ec_mult.c) without BIGNUM
1965 arithmetic, and such that modified wNAFs are generated
1966 (which avoid length expansion in many cases).
1969 *) Add a function EC_GROUP_check_discriminant() (defined via
1970 EC_METHOD) that verifies that the curve discriminant is non-zero.
1972 Add a function EC_GROUP_check() that makes some sanity tests
1973 on a EC_GROUP, its generator and order. This includes
1974 EC_GROUP_check_discriminant().
1975 [Nils Larsch <nla@trustcenter.de>]
1977 *) Add ECDSA in new directory crypto/ecdsa/.
1979 Add applications 'openssl ecparam' and 'openssl ecdsa'
1980 (these are based on 'openssl dsaparam' and 'openssl dsa').
1982 ECDSA support is also included in various other files across the
1983 library. Most notably,
1984 - 'openssl req' now has a '-newkey ecdsa:file' option;
1985 - EVP_PKCS82PKEY (crypto/evp/evp_pkey.c) now can handle ECDSA;
1986 - X509_PUBKEY_get (crypto/asn1/x_pubkey.c) and
1987 d2i_PublicKey (crypto/asn1/d2i_pu.c) have been modified to make
1988 them suitable for ECDSA where domain parameters must be
1989 extracted before the specific public key;
1990 - ECDSA engine support has been added.
1991 [Nils Larsch <nla@trustcenter.de>]
1993 *) Include some named elliptic curves, and add OIDs from X9.62,
1994 SECG, and WAP/WTLS. Each curve can be obtained from the new
1996 EC_GROUP_new_by_curve_name(),
1997 and the list of available named curves can be obtained with
1998 EC_get_builtin_curves().
1999 Also add a 'curve_name' member to EC_GROUP objects, which can be
2001 EC_GROUP_set_curve_name()
2002 EC_GROUP_get_curve_name()
2003 [Nils Larsch <larsch@trustcenter.de, Bodo Moeller]
2005 *) Remove a few calls to bn_wexpand() in BN_sqr() (the one in there
2006 was actually never needed) and in BN_mul(). The removal in BN_mul()
2007 required a small change in bn_mul_part_recursive() and the addition
2008 of the functions bn_cmp_part_words(), bn_sub_part_words() and
2009 bn_add_part_words(), which do the same thing as bn_cmp_words(),
2010 bn_sub_words() and bn_add_words() except they take arrays with
2014 Changes between 0.9.7m and 0.9.7n [xx XXX xxxx]
2016 *) In the SSL/TLS server implementation, be strict about session ID
2017 context matching (which matters if an application uses a single
2018 external cache for different purposes). Previously,
2019 out-of-context reuse was forbidden only if SSL_VERIFY_PEER was
2020 set. This did ensure strict client verification, but meant that,
2021 with applications using a single external cache for quite
2022 different requirements, clients could circumvent ciphersuite
2023 restrictions for a given session ID context by starting a session
2024 in a different context.
2027 Changes between 0.9.7l and 0.9.7m [23 Feb 2007]
2029 *) Cleanse PEM buffers before freeing them since they may contain
2031 [Benjamin Bennett <ben@psc.edu>]
2033 *) Include "!eNULL" in SSL_DEFAULT_CIPHER_LIST to make sure that
2034 a ciphersuite string such as "DEFAULT:RSA" cannot enable
2035 authentication-only ciphersuites.
2038 *) Since AES128 and AES256 share a single mask bit in the logic of
2039 ssl/ssl_ciph.c, the code for masking out disabled ciphers needs a
2040 kludge to work properly if AES128 is available and AES256 isn't.
2043 *) Expand security boundary to match 1.1.1 module.
2046 *) Remove redundant features: hash file source, editing of test vectors
2047 modify fipsld to use external fips_premain.c signature.
2050 *) New perl script mkfipsscr.pl to create shell scripts or batch files to
2051 run algorithm test programs.
2054 *) Make algorithm test programs more tolerant of whitespace.
2057 *) Have SSL/TLS server implementation tolerate "mismatched" record
2058 protocol version while receiving ClientHello even if the
2059 ClientHello is fragmented. (The server can't insist on the
2060 particular protocol version it has chosen before the ServerHello
2061 message has informed the client about his choice.)
2064 *) Load error codes if they are not already present instead of using a
2065 static variable. This allows them to be cleanly unloaded and reloaded.
2068 Changes between 0.9.7k and 0.9.7l [28 Sep 2006]
2070 *) Introduce limits to prevent malicious keys being able to
2071 cause a denial of service. (CVE-2006-2940)
2072 [Steve Henson, Bodo Moeller]
2074 *) Fix ASN.1 parsing of certain invalid structures that can result
2075 in a denial of service. (CVE-2006-2937) [Steve Henson]
2077 *) Fix buffer overflow in SSL_get_shared_ciphers() function.
2078 (CVE-2006-3738) [Tavis Ormandy and Will Drewry, Google Security Team]
2080 *) Fix SSL client code which could crash if connecting to a
2081 malicious SSLv2 server. (CVE-2006-4343)
2082 [Tavis Ormandy and Will Drewry, Google Security Team]
2084 *) Change ciphersuite string processing so that an explicit
2085 ciphersuite selects this one ciphersuite (so that "AES256-SHA"
2086 will no longer include "AES128-SHA"), and any other similar
2087 ciphersuite (same bitmap) from *other* protocol versions (so that
2088 "RC4-MD5" will still include both the SSL 2.0 ciphersuite and the
2089 SSL 3.0/TLS 1.0 ciphersuite). This is a backport combining
2090 changes from 0.9.8b and 0.9.8d.
2093 Changes between 0.9.7j and 0.9.7k [05 Sep 2006]
2095 *) Avoid PKCS #1 v1.5 signature attack discovered by Daniel Bleichenbacher
2096 (CVE-2006-4339) [Ben Laurie and Google Security Team]
2098 *) Change the Unix randomness entropy gathering to use poll() when
2099 possible instead of select(), since the latter has some
2100 undesirable limitations.
2101 [Darryl Miles via Richard Levitte and Bodo Moeller]
2103 *) Disable rogue ciphersuites:
2105 - SSLv2 0x08 0x00 0x80 ("RC4-64-MD5")
2106 - SSLv3/TLSv1 0x00 0x61 ("EXP1024-RC2-CBC-MD5")
2107 - SSLv3/TLSv1 0x00 0x60 ("EXP1024-RC4-MD5")
2109 The latter two were purportedly from
2110 draft-ietf-tls-56-bit-ciphersuites-0[01].txt, but do not really
2113 Also deactive the remaining ciphersuites from
2114 draft-ietf-tls-56-bit-ciphersuites-01.txt. These are just as
2115 unofficial, and the ID has long expired.
2118 *) Fix RSA blinding Heisenbug (problems sometimes occured on
2119 dual-core machines) and other potential thread-safety issues.
2122 Changes between 0.9.7i and 0.9.7j [04 May 2006]
2124 *) Adapt fipsld and the build system to link against the validated FIPS
2125 module in FIPS mode.
2128 *) Fixes for VC++ 2005 build under Windows.
2131 *) Add new Windows build target VC-32-GMAKE for VC++. This uses GNU make
2132 from a Windows bash shell such as MSYS. It is autodetected from the
2133 "config" script when run from a VC++ environment. Modify standard VC++
2134 build to use fipscanister.o from the GNU make build.
2137 Changes between 0.9.7h and 0.9.7i [14 Oct 2005]
2139 *) Wrapped the definition of EVP_MAX_MD_SIZE in a #ifdef OPENSSL_FIPS.
2140 The value now differs depending on if you build for FIPS or not.
2141 BEWARE! A program linked with a shared FIPSed libcrypto can't be
2142 safely run with a non-FIPSed libcrypto, as it may crash because of
2143 the difference induced by this change.
2146 Changes between 0.9.7g and 0.9.7h [11 Oct 2005]
2148 *) Remove the functionality of SSL_OP_MSIE_SSLV2_RSA_PADDING
2149 (part of SSL_OP_ALL). This option used to disable the
2150 countermeasure against man-in-the-middle protocol-version
2151 rollback in the SSL 2.0 server implementation, which is a bad
2152 idea. (CVE-2005-2969)
2154 [Bodo Moeller; problem pointed out by Yutaka Oiwa (Research Center
2155 for Information Security, National Institute of Advanced Industrial
2156 Science and Technology [AIST], Japan)]
2158 *) Minimal support for X9.31 signatures and PSS padding modes. This is
2159 mainly for FIPS compliance and not fully integrated at this stage.
2162 *) For DSA signing, unless DSA_FLAG_NO_EXP_CONSTTIME is set, perform
2163 the exponentiation using a fixed-length exponent. (Otherwise,
2164 the information leaked through timing could expose the secret key
2165 after many signatures; cf. Bleichenbacher's attack on DSA with
2169 *) Make a new fixed-window mod_exp implementation the default for
2170 RSA, DSA, and DH private-key operations so that the sequence of
2171 squares and multiplies and the memory access pattern are
2172 independent of the particular secret key. This will mitigate
2173 cache-timing and potential related attacks.
2175 BN_mod_exp_mont_consttime() is the new exponentiation implementation,
2176 and this is automatically used by BN_mod_exp_mont() if the new flag
2177 BN_FLG_EXP_CONSTTIME is set for the exponent. RSA, DSA, and DH
2178 will use this BN flag for private exponents unless the flag
2179 RSA_FLAG_NO_EXP_CONSTTIME, DSA_FLAG_NO_EXP_CONSTTIME, or
2180 DH_FLAG_NO_EXP_CONSTTIME, respectively, is set.
2182 [Matthew D Wood (Intel Corp), with some changes by Bodo Moeller]
2184 *) Change the client implementation for SSLv23_method() and
2185 SSLv23_client_method() so that is uses the SSL 3.0/TLS 1.0
2186 Client Hello message format if the SSL_OP_NO_SSLv2 option is set.
2187 (Previously, the SSL 2.0 backwards compatible Client Hello
2188 message format would be used even with SSL_OP_NO_SSLv2.)
2191 *) Add support for smime-type MIME parameter in S/MIME messages which some
2195 *) New function BN_MONT_CTX_set_locked() to set montgomery parameters in
2196 a threadsafe manner. Modify rsa code to use new function and add calls
2197 to dsa and dh code (which had race conditions before).
2200 *) Include the fixed error library code in the C error file definitions
2201 instead of fixing them up at runtime. This keeps the error code
2202 structures constant.
2205 Changes between 0.9.7f and 0.9.7g [11 Apr 2005]
2207 [NB: OpenSSL 0.9.7h and later 0.9.7 patch levels were released after
2210 *) Fixes for newer kerberos headers. NB: the casts are needed because
2211 the 'length' field is signed on one version and unsigned on another
2212 with no (?) obvious way to tell the difference, without these VC++
2213 complains. Also the "definition" of FAR (blank) is no longer included
2214 nor is the error ENOMEM. KRB5_PRIVATE has to be set to 1 to pick up
2215 some needed definitions.
2218 *) Undo Cygwin change.
2221 *) Added support for proxy certificates according to RFC 3820.
2222 Because they may be a security thread to unaware applications,
2223 they must be explicitely allowed in run-time. See
2224 docs/HOWTO/proxy_certificates.txt for further information.
2227 Changes between 0.9.7e and 0.9.7f [22 Mar 2005]
2229 *) Use (SSL_RANDOM_VALUE - 4) bytes of pseudo random data when generating
2230 server and client random values. Previously
2231 (SSL_RANDOM_VALUE - sizeof(time_t)) would be used which would result in
2232 less random data when sizeof(time_t) > 4 (some 64 bit platforms).
2234 This change has negligible security impact because:
2236 1. Server and client random values still have 24 bytes of pseudo random
2239 2. Server and client random values are sent in the clear in the initial
2242 3. The master secret is derived using the premaster secret (48 bytes in
2243 size for static RSA ciphersuites) as well as client server and random
2246 The OpenSSL team would like to thank the UK NISCC for bringing this issue
2249 [Stephen Henson, reported by UK NISCC]
2251 *) Use Windows randomness collection on Cygwin.
2254 *) Fix hang in EGD/PRNGD query when communication socket is closed
2255 prematurely by EGD/PRNGD.
2256 [Darren Tucker <dtucker@zip.com.au> via Lutz Jänicke, resolves #1014]
2258 *) Prompt for pass phrases when appropriate for PKCS12 input format.
2261 *) Back-port of selected performance improvements from development
2262 branch, as well as improved support for PowerPC platforms.
2265 *) Add lots of checks for memory allocation failure, error codes to indicate
2266 failure and freeing up memory if a failure occurs.
2267 [Nauticus Networks SSL Team <openssl@nauticusnet.com>, Steve Henson]
2269 *) Add new -passin argument to dgst.
2272 *) Perform some character comparisons of different types in X509_NAME_cmp:
2273 this is needed for some certificates that reencode DNs into UTF8Strings
2274 (in violation of RFC3280) and can't or wont issue name rollover
2278 *) Make an explicit check during certificate validation to see that
2279 the CA setting in each certificate on the chain is correct. As a
2280 side effect always do the following basic checks on extensions,
2281 not just when there's an associated purpose to the check:
2283 - if there is an unhandled critical extension (unless the user
2284 has chosen to ignore this fault)
2285 - if the path length has been exceeded (if one is set at all)
2286 - that certain extensions fit the associated purpose (if one has
2290 Changes between 0.9.7d and 0.9.7e [25 Oct 2004]
2292 *) Avoid a race condition when CRLs are checked in a multi threaded
2293 environment. This would happen due to the reordering of the revoked
2294 entries during signature checking and serial number lookup. Now the
2295 encoding is cached and the serial number sort performed under a lock.
2296 Add new STACK function sk_is_sorted().
2299 *) Add Delta CRL to the extension code.
2302 *) Various fixes to s3_pkt.c so alerts are sent properly.
2303 [David Holmes <d.holmes@f5.com>]
2305 *) Reduce the chances of duplicate issuer name and serial numbers (in
2306 violation of RFC3280) using the OpenSSL certificate creation utilities.
2307 This is done by creating a random 64 bit value for the initial serial
2308 number when a serial number file is created or when a self signed
2309 certificate is created using 'openssl req -x509'. The initial serial
2310 number file is created using 'openssl x509 -next_serial' in CA.pl
2311 rather than being initialized to 1.
2314 Changes between 0.9.7c and 0.9.7d [17 Mar 2004]
2316 *) Fix null-pointer assignment in do_change_cipher_spec() revealed
2317 by using the Codenomicon TLS Test Tool (CVE-2004-0079)
2318 [Joe Orton, Steve Henson]
2320 *) Fix flaw in SSL/TLS handshaking when using Kerberos ciphersuites
2322 [Joe Orton, Steve Henson]
2324 *) Make it possible to have multiple active certificates with the same
2325 subject in the CA index file. This is done only if the keyword
2326 'unique_subject' is set to 'no' in the main CA section (default
2327 if 'CA_default') of the configuration file. The value is saved
2328 with the database itself in a separate index attribute file,
2329 named like the index file with '.attr' appended to the name.
2332 *) X509 verify fixes. Disable broken certificate workarounds when
2333 X509_V_FLAGS_X509_STRICT is set. Check CRL issuer has cRLSign set if
2334 keyUsage extension present. Don't accept CRLs with unhandled critical
2335 extensions: since verify currently doesn't process CRL extensions this
2336 rejects a CRL with *any* critical extensions. Add new verify error codes
2340 *) When creating an OCSP nonce use an OCTET STRING inside the extnValue.
2341 A clarification of RFC2560 will require the use of OCTET STRINGs and
2342 some implementations cannot handle the current raw format. Since OpenSSL
2343 copies and compares OCSP nonces as opaque blobs without any attempt at
2344 parsing them this should not create any compatibility issues.
2347 *) New md flag EVP_MD_CTX_FLAG_REUSE this allows md_data to be reused when
2348 calling EVP_MD_CTX_copy_ex() to avoid calling OPENSSL_malloc(). Without
2349 this HMAC (and other) operations are several times slower than OpenSSL
2353 *) Print out GeneralizedTime and UTCTime in ASN1_STRING_print_ex().
2354 [Peter Sylvester <Peter.Sylvester@EdelWeb.fr>]
2356 *) Use the correct content when signing type "other".
2359 Changes between 0.9.7b and 0.9.7c [30 Sep 2003]
2361 *) Fix various bugs revealed by running the NISCC test suite:
2363 Stop out of bounds reads in the ASN1 code when presented with
2364 invalid tags (CVE-2003-0543 and CVE-2003-0544).
2366 Free up ASN1_TYPE correctly if ANY type is invalid (CVE-2003-0545).
2368 If verify callback ignores invalid public key errors don't try to check
2369 certificate signature with the NULL public key.
2373 *) New -ignore_err option in ocsp application to stop the server
2374 exiting on the first error in a request.
2377 *) In ssl3_accept() (ssl/s3_srvr.c) only accept a client certificate
2378 if the server requested one: as stated in TLS 1.0 and SSL 3.0
2382 *) In ssl3_get_client_hello() (ssl/s3_srvr.c), tolerate additional
2383 extra data after the compression methods not only for TLS 1.0
2384 but also for SSL 3.0 (as required by the specification).
2385 [Bodo Moeller; problem pointed out by Matthias Loepfe]
2387 *) Change X509_certificate_type() to mark the key as exported/exportable
2388 when it's 512 *bits* long, not 512 bytes.
2391 *) Change AES_cbc_encrypt() so it outputs exact multiple of
2392 blocks during encryption.
2395 *) Various fixes to base64 BIO and non blocking I/O. On write
2396 flushes were not handled properly if the BIO retried. On read
2397 data was not being buffered properly and had various logic bugs.
2398 This also affects blocking I/O when the data being decoded is a
2402 *) Various S/MIME bugfixes and compatibility changes:
2403 output correct application/pkcs7 MIME type if
2404 PKCS7_NOOLDMIMETYPE is set. Tolerate some broken signatures.
2405 Output CR+LF for EOL if PKCS7_CRLFEOL is set (this makes opening
2406 of files as .eml work). Correctly handle very long lines in MIME
2410 Changes between 0.9.7a and 0.9.7b [10 Apr 2003]
2412 *) Countermeasure against the Klima-Pokorny-Rosa extension of
2413 Bleichbacher's attack on PKCS #1 v1.5 padding: treat
2414 a protocol version number mismatch like a decryption error
2415 in ssl3_get_client_key_exchange (ssl/s3_srvr.c).
2418 *) Turn on RSA blinding by default in the default implementation
2419 to avoid a timing attack. Applications that don't want it can call
2420 RSA_blinding_off() or use the new flag RSA_FLAG_NO_BLINDING.
2421 They would be ill-advised to do so in most cases.
2422 [Ben Laurie, Steve Henson, Geoff Thorpe, Bodo Moeller]
2424 *) Change RSA blinding code so that it works when the PRNG is not
2425 seeded (in this case, the secret RSA exponent is abused as
2426 an unpredictable seed -- if it is not unpredictable, there
2427 is no point in blinding anyway). Make RSA blinding thread-safe
2428 by remembering the creator's thread ID in rsa->blinding and
2429 having all other threads use local one-time blinding factors
2430 (this requires more computation than sharing rsa->blinding, but
2431 avoids excessive locking; and if an RSA object is not shared
2432 between threads, blinding will still be very fast).
2435 *) Fixed a typo bug that would cause ENGINE_set_default() to set an
2436 ENGINE as defaults for all supported algorithms irrespective of
2437 the 'flags' parameter. 'flags' is now honoured, so applications
2438 should make sure they are passing it correctly.
2441 *) Target "mingw" now allows native Windows code to be generated in
2442 the Cygwin environment as well as with the MinGW compiler.
2445 Changes between 0.9.7 and 0.9.7a [19 Feb 2003]
2447 *) In ssl3_get_record (ssl/s3_pkt.c), minimize information leaked
2448 via timing by performing a MAC computation even if incorrrect
2449 block cipher padding has been found. This is a countermeasure
2450 against active attacks where the attacker has to distinguish
2451 between bad padding and a MAC verification error. (CVE-2003-0078)
2453 [Bodo Moeller; problem pointed out by Brice Canvel (EPFL),
2454 Alain Hiltgen (UBS), Serge Vaudenay (EPFL), and
2455 Martin Vuagnoux (EPFL, Ilion)]
2457 *) Make the no-err option work as intended. The intention with no-err
2458 is not to have the whole error stack handling routines removed from
2459 libcrypto, it's only intended to remove all the function name and
2460 reason texts, thereby removing some of the footprint that may not
2461 be interesting if those errors aren't displayed anyway.
2463 NOTE: it's still possible for any application or module to have it's
2464 own set of error texts inserted. The routines are there, just not
2465 used by default when no-err is given.
2468 *) Add support for FreeBSD on IA64.
2469 [dirk.meyer@dinoex.sub.org via Richard Levitte, resolves #454]
2471 *) Adjust DES_cbc_cksum() so it returns the same value as the MIT
2472 Kerberos function mit_des_cbc_cksum(). Before this change,
2473 the value returned by DES_cbc_cksum() was like the one from
2474 mit_des_cbc_cksum(), except the bytes were swapped.
2475 [Kevin Greaney <Kevin.Greaney@hp.com> and Richard Levitte]
2477 *) Allow an application to disable the automatic SSL chain building.
2478 Before this a rather primitive chain build was always performed in
2479 ssl3_output_cert_chain(): an application had no way to send the
2480 correct chain if the automatic operation produced an incorrect result.
2482 Now the chain builder is disabled if either:
2484 1. Extra certificates are added via SSL_CTX_add_extra_chain_cert().
2486 2. The mode flag SSL_MODE_NO_AUTO_CHAIN is set.
2488 The reasoning behind this is that an application would not want the
2489 auto chain building to take place if extra chain certificates are
2490 present and it might also want a means of sending no additional
2491 certificates (for example the chain has two certificates and the
2495 *) Add the possibility to build without the ENGINE framework.
2496 [Steven Reddie <smr@essemer.com.au> via Richard Levitte]
2498 *) Under Win32 gmtime() can return NULL: check return value in
2499 OPENSSL_gmtime(). Add error code for case where gmtime() fails.
2502 *) DSA routines: under certain error conditions uninitialized BN objects
2503 could be freed. Solution: make sure initialization is performed early
2504 enough. (Reported and fix supplied by Ivan D Nestlerode <nestler@MIT.EDU>,
2505 Nils Larsch <nla@trustcenter.de> via PR#459)
2508 *) Another fix for SSLv2 session ID handling: the session ID was incorrectly
2509 checked on reconnect on the client side, therefore session resumption
2510 could still fail with a "ssl session id is different" error. This
2511 behaviour is masked when SSL_OP_ALL is used due to
2512 SSL_OP_MICROSOFT_SESS_ID_BUG being set.
2513 Behaviour observed by Crispin Flowerday <crispin@flowerday.cx> as
2514 followup to PR #377.
2517 *) IA-32 assembler support enhancements: unified ELF targets, support
2518 for SCO/Caldera platforms, fix for Cygwin shared build.
2521 *) Add support for FreeBSD on sparc64. As a consequence, support for
2522 FreeBSD on non-x86 processors is separate from x86 processors on
2523 the config script, much like the NetBSD support.
2524 [Richard Levitte & Kris Kennaway <kris@obsecurity.org>]
2526 Changes between 0.9.6h and 0.9.7 [31 Dec 2002]
2528 [NB: OpenSSL 0.9.6i and later 0.9.6 patch levels were released after
2531 *) Fix session ID handling in SSLv2 client code: the SERVER FINISHED
2532 code (06) was taken as the first octet of the session ID and the last
2533 octet was ignored consequently. As a result SSLv2 client side session
2534 caching could not have worked due to the session ID mismatch between
2536 Behaviour observed by Crispin Flowerday <crispin@flowerday.cx> as
2540 *) Change the declaration of needed Kerberos libraries to use EX_LIBS
2541 instead of the special (and badly supported) LIBKRB5. LIBKRB5 is
2545 *) The hw_ncipher.c engine requires dynamic locks. Unfortunately, it
2546 seems that in spite of existing for more than a year, many application
2547 author have done nothing to provide the necessary callbacks, which
2548 means that this particular engine will not work properly anywhere.
2549 This is a very unfortunate situation which forces us, in the name
2550 of usability, to give the hw_ncipher.c a static lock, which is part
2552 NOTE: This is for the 0.9.7 series ONLY. This hack will never
2553 appear in 0.9.8 or later. We EXPECT application authors to have
2554 dealt properly with this when 0.9.8 is released (unless we actually
2555 make such changes in the libcrypto locking code that changes will
2556 have to be made anyway).
2559 *) In asn1_d2i_read_bio() repeatedly call BIO_read() until all content
2560 octets have been read, EOF or an error occurs. Without this change
2561 some truncated ASN1 structures will not produce an error.
2564 *) Disable Heimdal support, since it hasn't been fully implemented.
2565 Still give the possibility to force the use of Heimdal, but with
2566 warnings and a request that patches get sent to openssl-dev.
2569 *) Add the VC-CE target, introduce the WINCE sysname, and add
2570 INSTALL.WCE and appropriate conditionals to make it build.
2571 [Steven Reddie <smr@essemer.com.au> via Richard Levitte]
2573 *) Change the DLL names for Cygwin to cygcrypto-x.y.z.dll and
2574 cygssl-x.y.z.dll, where x, y and z are the major, minor and
2575 edit numbers of the version.
2576 [Corinna Vinschen <vinschen@redhat.com> and Richard Levitte]
2578 *) Introduce safe string copy and catenation functions
2579 (BUF_strlcpy() and BUF_strlcat()).
2580 [Ben Laurie (CHATS) and Richard Levitte]
2582 *) Avoid using fixed-size buffers for one-line DNs.
2583 [Ben Laurie (CHATS)]
2585 *) Add BUF_MEM_grow_clean() to avoid information leakage when
2586 resizing buffers containing secrets, and use where appropriate.
2587 [Ben Laurie (CHATS)]
2589 *) Avoid using fixed size buffers for configuration file location.
2590 [Ben Laurie (CHATS)]
2592 *) Avoid filename truncation for various CA files.
2593 [Ben Laurie (CHATS)]
2595 *) Use sizeof in preference to magic numbers.
2596 [Ben Laurie (CHATS)]
2598 *) Avoid filename truncation in cert requests.
2599 [Ben Laurie (CHATS)]
2601 *) Add assertions to check for (supposedly impossible) buffer
2603 [Ben Laurie (CHATS)]
2605 *) Don't cache truncated DNS entries in the local cache (this could
2606 potentially lead to a spoofing attack).
2607 [Ben Laurie (CHATS)]
2609 *) Fix various buffers to be large enough for hex/decimal
2610 representations in a platform independent manner.
2611 [Ben Laurie (CHATS)]
2613 *) Add CRYPTO_realloc_clean() to avoid information leakage when
2614 resizing buffers containing secrets, and use where appropriate.
2615 [Ben Laurie (CHATS)]
2617 *) Add BIO_indent() to avoid much slightly worrying code to do
2619 [Ben Laurie (CHATS)]
2621 *) Convert sprintf()/BIO_puts() to BIO_printf().
2622 [Ben Laurie (CHATS)]
2624 *) buffer_gets() could terminate with the buffer only half
2626 [Ben Laurie (CHATS)]
2628 *) Add assertions to prevent user-supplied crypto functions from
2629 overflowing internal buffers by having large block sizes, etc.
2630 [Ben Laurie (CHATS)]
2632 *) New OPENSSL_assert() macro (similar to assert(), but enabled
2634 [Ben Laurie (CHATS)]
2636 *) Eliminate unused copy of key in RC4.
2637 [Ben Laurie (CHATS)]
2639 *) Eliminate unused and incorrectly sized buffers for IV in pem.h.
2640 [Ben Laurie (CHATS)]
2642 *) Fix off-by-one error in EGD path.
2643 [Ben Laurie (CHATS)]
2645 *) If RANDFILE path is too long, ignore instead of truncating.
2646 [Ben Laurie (CHATS)]
2648 *) Eliminate unused and incorrectly sized X.509 structure
2650 [Ben Laurie (CHATS)]
2652 *) Eliminate unused and dangerous function knumber().
2653 [Ben Laurie (CHATS)]
2655 *) Eliminate unused and dangerous structure, KSSL_ERR.
2656 [Ben Laurie (CHATS)]
2658 *) Protect against overlong session ID context length in an encoded
2659 session object. Since these are local, this does not appear to be
2661 [Ben Laurie (CHATS)]
2663 *) Change from security patch (see 0.9.6e below) that did not affect
2664 the 0.9.6 release series:
2666 Remote buffer overflow in SSL3 protocol - an attacker could
2667 supply an oversized master key in Kerberos-enabled versions.
2669 [Ben Laurie (CHATS)]
2671 *) Change the SSL kerb5 codes to match RFC 2712.
2674 *) Make -nameopt work fully for req and add -reqopt switch.
2675 [Michael Bell <michael.bell@rz.hu-berlin.de>, Steve Henson]
2677 *) The "block size" for block ciphers in CFB and OFB mode should be 1.
2678 [Steve Henson, reported by Yngve Nysaeter Pettersen <yngve@opera.com>]
2680 *) Make sure tests can be performed even if the corresponding algorithms
2681 have been removed entirely. This was also the last step to make
2682 OpenSSL compilable with DJGPP under all reasonable conditions.
2683 [Richard Levitte, Doug Kaufman <dkaufman@rahul.net>]
2685 *) Add cipher selection rules COMPLEMENTOFALL and COMPLEMENTOFDEFAULT
2686 to allow version independent disabling of normally unselected ciphers,
2687 which may be activated as a side-effect of selecting a single cipher.
2689 (E.g., cipher list string "RSA" enables ciphersuites that are left
2690 out of "ALL" because they do not provide symmetric encryption.
2691 "RSA:!COMPLEMEMENTOFALL" avoids these unsafe ciphersuites.)
2692 [Lutz Jaenicke, Bodo Moeller]
2694 *) Add appropriate support for separate platform-dependent build
2695 directories. The recommended way to make a platform-dependent
2696 build directory is the following (tested on Linux), maybe with
2699 # Place yourself outside of the OpenSSL source tree. In
2700 # this example, the environment variable OPENSSL_SOURCE
2701 # is assumed to contain the absolute OpenSSL source directory.
2702 mkdir -p objtree/"`uname -s`-`uname -r`-`uname -m`"
2703 cd objtree/"`uname -s`-`uname -r`-`uname -m`"
2704 (cd $OPENSSL_SOURCE; find . -type f) | while read F; do
2705 mkdir -p `dirname $F`
2706 ln -s $OPENSSL_SOURCE/$F $F
2709 To be absolutely sure not to disturb the source tree, a "make clean"
2710 is a good thing. If it isn't successfull, don't worry about it,
2711 it probably means the source directory is very clean.
2714 *) Make sure any ENGINE control commands make local copies of string
2715 pointers passed to them whenever necessary. Otherwise it is possible
2716 the caller may have overwritten (or deallocated) the original string
2717 data when a later ENGINE operation tries to use the stored values.
2718 [Götz Babin-Ebell <babinebell@trustcenter.de>]
2720 *) Improve diagnostics in file reading and command-line digests.
2721 [Ben Laurie aided and abetted by Solar Designer <solar@openwall.com>]
2723 *) Add AES modes CFB and OFB to the object database. Correct an
2724 error in AES-CFB decryption.
2727 *) Remove most calls to EVP_CIPHER_CTX_cleanup() in evp_enc.c, this
2728 allows existing EVP_CIPHER_CTX structures to be reused after
2729 calling EVP_*Final(). This behaviour is used by encryption
2730 BIOs and some applications. This has the side effect that
2731 applications must explicitly clean up cipher contexts with
2732 EVP_CIPHER_CTX_cleanup() or they will leak memory.
2735 *) Check the values of dna and dnb in bn_mul_recursive before calling
2736 bn_mul_comba (a non zero value means the a or b arrays do not contain
2737 n2 elements) and fallback to bn_mul_normal if either is not zero.
2740 *) Fix escaping of non-ASCII characters when using the -subj option
2741 of the "openssl req" command line tool. (Robert Joop <joop@fokus.gmd.de>)
2744 *) Make object definitions compliant to LDAP (RFC2256): SN is the short
2745 form for "surname", serialNumber has no short form.
2746 Use "mail" as the short name for "rfc822Mailbox" according to RFC2798;
2747 therefore remove "mail" short name for "internet 7".
2748 The OID for unique identifiers in X509 certificates is
2749 x500UniqueIdentifier, not uniqueIdentifier.
2750 Some more OID additions. (Michael Bell <michael.bell@rz.hu-berlin.de>)
2753 *) Add an "init" command to the ENGINE config module and auto initialize
2754 ENGINEs. Without any "init" command the ENGINE will be initialized
2755 after all ctrl commands have been executed on it. If init=1 the
2756 ENGINE is initailized at that point (ctrls before that point are run
2757 on the uninitialized ENGINE and after on the initialized one). If
2758 init=0 then the ENGINE will not be iniatialized at all.
2761 *) Fix the 'app_verify_callback' interface so that the user-defined
2762 argument is actually passed to the callback: In the
2763 SSL_CTX_set_cert_verify_callback() prototype, the callback
2764 declaration has been changed from
2767 int (*cb)(X509_STORE_CTX *,void *);
2768 in ssl_verify_cert_chain (ssl/ssl_cert.c), the call
2769 i=s->ctx->app_verify_callback(&ctx)
2770 has been changed into
2771 i=s->ctx->app_verify_callback(&ctx, s->ctx->app_verify_arg).
2773 To update applications using SSL_CTX_set_cert_verify_callback(),
2774 a dummy argument can be added to their callback functions.
2775 [D. K. Smetters <smetters@parc.xerox.com>]
2777 *) Added the '4758cca' ENGINE to support IBM 4758 cards.
2778 [Maurice Gittens <maurice@gittens.nl>, touchups by Geoff Thorpe]
2780 *) Add and OPENSSL_LOAD_CONF define which will cause
2781 OpenSSL_add_all_algorithms() to load the openssl.cnf config file.
2782 This allows older applications to transparently support certain
2783 OpenSSL features: such as crypto acceleration and dynamic ENGINE loading.
2784 Two new functions OPENSSL_add_all_algorithms_noconf() which will never
2785 load the config file and OPENSSL_add_all_algorithms_conf() which will
2786 always load it have also been added.
2789 *) Add the OFB, CFB and CTR (all with 128 bit feedback) to AES.
2790 Adjust NIDs and EVP layer.
2791 [Stephen Sprunk <stephen@sprunk.org> and Richard Levitte]
2793 *) Config modules support in openssl utility.
2795 Most commands now load modules from the config file,
2796 though in a few (such as version) this isn't done
2797 because it couldn't be used for anything.
2799 In the case of ca and req the config file used is
2800 the same as the utility itself: that is the -config
2801 command line option can be used to specify an
2805 *) Move default behaviour from OPENSSL_config(). If appname is NULL
2806 use "openssl_conf" if filename is NULL use default openssl config file.
2809 *) Add an argument to OPENSSL_config() to allow the use of an alternative
2810 config section name. Add a new flag to tolerate a missing config file
2811 and move code to CONF_modules_load_file().
2814 *) Support for crypto accelerator cards from Accelerated Encryption
2815 Processing, www.aep.ie. (Use engine 'aep')
2816 The support was copied from 0.9.6c [engine] and adapted/corrected
2817 to work with the new engine framework.
2818 [AEP Inc. and Richard Levitte]
2820 *) Support for SureWare crypto accelerator cards from Baltimore
2821 Technologies. (Use engine 'sureware')
2822 The support was copied from 0.9.6c [engine] and adapted
2823 to work with the new engine framework.
2826 *) Have the CHIL engine fork-safe (as defined by nCipher) and actually
2827 make the newer ENGINE framework commands for the CHIL engine work.
2828 [Toomas Kiisk <vix@cyber.ee> and Richard Levitte]
2830 *) Make it possible to produce shared libraries on ReliantUNIX.
2831 [Robert Dahlem <Robert.Dahlem@ffm2.siemens.de> via Richard Levitte]
2833 *) Add the configuration target debug-linux-ppro.
2834 Make 'openssl rsa' use the general key loading routines
2835 implemented in apps.c, and make those routines able to
2836 handle the key format FORMAT_NETSCAPE and the variant
2838 [Toomas Kiisk <vix@cyber.ee> via Richard Levitte]
2840 *) Fix a crashbug and a logic bug in hwcrhk_load_pubkey().
2841 [Toomas Kiisk <vix@cyber.ee> via Richard Levitte]
2843 *) Add -keyform to rsautl, and document -engine.
2844 [Richard Levitte, inspired by Toomas Kiisk <vix@cyber.ee>]
2846 *) Change BIO_new_file (crypto/bio/bss_file.c) to use new
2847 BIO_R_NO_SUCH_FILE error code rather than the generic
2848 ERR_R_SYS_LIB error code if fopen() fails with ENOENT.
2851 *) Add new functions
2853 ERR_peek_last_error_line
2854 ERR_peek_last_error_line_data.
2855 These are similar to
2858 ERR_peek_error_line_data,
2859 but report on the latest error recorded rather than the first one
2860 still in the error queue.
2861 [Ben Laurie, Bodo Moeller]
2863 *) default_algorithms option in ENGINE config module. This allows things
2865 default_algorithms = ALL
2866 default_algorithms = RSA, DSA, RAND, CIPHERS, DIGESTS
2869 *) Prelminary ENGINE config module.
2872 *) New experimental application configuration code.
2875 *) Change the AES code to follow the same name structure as all other
2876 symmetric ciphers, and behave the same way. Move everything to
2877 the directory crypto/aes, thereby obsoleting crypto/rijndael.
2878 [Stephen Sprunk <stephen@sprunk.org> and Richard Levitte]
2880 *) SECURITY: remove unsafe setjmp/signal interaction from ui_openssl.c.
2881 [Ben Laurie and Theo de Raadt]
2883 *) Add option to output public keys in req command.
2884 [Massimiliano Pala madwolf@openca.org]
2886 *) Use wNAFs in EC_POINTs_mul() for improved efficiency
2887 (up to about 10% better than before for P-192 and P-224).
2890 *) New functions/macros
2892 SSL_CTX_set_msg_callback(ctx, cb)
2893 SSL_CTX_set_msg_callback_arg(ctx, arg)
2894 SSL_set_msg_callback(ssl, cb)
2895 SSL_set_msg_callback_arg(ssl, arg)
2897 to request calling a callback function
2899 void cb(int write_p, int version, int content_type,
2900 const void *buf, size_t len, SSL *ssl, void *arg)
2902 whenever a protocol message has been completely received
2903 (write_p == 0) or sent (write_p == 1). Here 'version' is the
2904 protocol version according to which the SSL library interprets
2905 the current protocol message (SSL2_VERSION, SSL3_VERSION, or
2906 TLS1_VERSION). 'content_type' is 0 in the case of SSL 2.0, or
2907 the content type as defined in the SSL 3.0/TLS 1.0 protocol
2908 specification (change_cipher_spec(20), alert(21), handshake(22)).
2909 'buf' and 'len' point to the actual message, 'ssl' to the
2910 SSL object, and 'arg' is the application-defined value set by
2911 SSL[_CTX]_set_msg_callback_arg().
2913 'openssl s_client' and 'openssl s_server' have new '-msg' options
2914 to enable a callback that displays all protocol messages.
2917 *) Change the shared library support so shared libraries are built as
2918 soon as the corresponding static library is finished, and thereby get
2919 openssl and the test programs linked against the shared library.
2920 This still only happens when the keyword "shard" has been given to
2921 the configuration scripts.
2923 NOTE: shared library support is still an experimental thing, and
2924 backward binary compatibility is still not guaranteed.
2925 ["Maciej W. Rozycki" <macro@ds2.pg.gda.pl> and Richard Levitte]
2927 *) Add support for Subject Information Access extension.
2928 [Peter Sylvester <Peter.Sylvester@EdelWeb.fr>]
2930 *) Make BUF_MEM_grow() behaviour more consistent: Initialise to zero
2931 additional bytes when new memory had to be allocated, not just
2932 when reusing an existing buffer.
2935 *) New command line and configuration option 'utf8' for the req command.
2936 This allows field values to be specified as UTF8 strings.
2939 *) Add -multi and -mr options to "openssl speed" - giving multiple parallel
2940 runs for the former and machine-readable output for the latter.
2943 *) Add '-noemailDN' option to 'openssl ca'. This prevents inclusion
2944 of the e-mail address in the DN (i.e., it will go into a certificate
2945 extension only). The new configuration file option 'email_in_dn = no'
2946 has the same effect.
2947 [Massimiliano Pala madwolf@openca.org]
2949 *) Change all functions with names starting with des_ to be starting
2950 with DES_ instead. Add wrappers that are compatible with libdes,
2951 but are named _ossl_old_des_*. Finally, add macros that map the
2952 des_* symbols to the corresponding _ossl_old_des_* if libdes
2953 compatibility is desired. If OpenSSL 0.9.6c compatibility is
2954 desired, the des_* symbols will be mapped to DES_*, with one
2957 Since we provide two compatibility mappings, the user needs to
2958 define the macro OPENSSL_DES_LIBDES_COMPATIBILITY if libdes
2959 compatibility is desired. The default (i.e., when that macro
2960 isn't defined) is OpenSSL 0.9.6c compatibility.
2962 There are also macros that enable and disable the support of old
2963 des functions altogether. Those are OPENSSL_ENABLE_OLD_DES_SUPPORT
2964 and OPENSSL_DISABLE_OLD_DES_SUPPORT. If none or both of those
2965 are defined, the default will apply: to support the old des routines.
2967 In either case, one must include openssl/des.h to get the correct
2968 definitions. Do not try to just include openssl/des_old.h, that
2971 NOTE: This is a major break of an old API into a new one. Software
2972 authors are encouraged to switch to the DES_ style functions. Some
2973 time in the future, des_old.h and the libdes compatibility functions
2974 will be disable (i.e. OPENSSL_DISABLE_OLD_DES_SUPPORT will be the
2975 default), and then completely removed.
2978 *) Test for certificates which contain unsupported critical extensions.
2979 If such a certificate is found during a verify operation it is
2980 rejected by default: this behaviour can be overridden by either
2981 handling the new error X509_V_ERR_UNHANDLED_CRITICAL_EXTENSION or
2982 by setting the verify flag X509_V_FLAG_IGNORE_CRITICAL. A new function
2983 X509_supported_extension() has also been added which returns 1 if a
2984 particular extension is supported.
2987 *) Modify the behaviour of EVP cipher functions in similar way to digests
2988 to retain compatibility with existing code.
2991 *) Modify the behaviour of EVP_DigestInit() and EVP_DigestFinal() to retain
2992 compatibility with existing code. In particular the 'ctx' parameter does
2993 not have to be to be initialized before the call to EVP_DigestInit() and
2994 it is tidied up after a call to EVP_DigestFinal(). New function
2995 EVP_DigestFinal_ex() which does not tidy up the ctx. Similarly function
2996 EVP_MD_CTX_copy() changed to not require the destination to be
2997 initialized valid and new function EVP_MD_CTX_copy_ex() added which
2998 requires the destination to be valid.
3000 Modify all the OpenSSL digest calls to use EVP_DigestInit_ex(),
3001 EVP_DigestFinal_ex() and EVP_MD_CTX_copy_ex().
3004 *) Change ssl3_get_message (ssl/s3_both.c) and the functions using it
3005 so that complete 'Handshake' protocol structures are kept in memory
3006 instead of overwriting 'msg_type' and 'length' with 'body' data.
3009 *) Add an implementation of SSL_add_dir_cert_subjects_to_stack for Win32.
3010 [Massimo Santin via Richard Levitte]
3012 *) Major restructuring to the underlying ENGINE code. This includes
3013 reduction of linker bloat, separation of pure "ENGINE" manipulation
3014 (initialisation, etc) from functionality dealing with implementations
3015 of specific crypto iterfaces. This change also introduces integrated
3016 support for symmetric ciphers and digest implementations - so ENGINEs
3017 can now accelerate these by providing EVP_CIPHER and EVP_MD
3018 implementations of their own. This is detailed in crypto/engine/README
3019 as it couldn't be adequately described here. However, there are a few
3020 API changes worth noting - some RSA, DSA, DH, and RAND functions that
3021 were changed in the original introduction of ENGINE code have now
3022 reverted back - the hooking from this code to ENGINE is now a good
3023 deal more passive and at run-time, operations deal directly with
3024 RSA_METHODs, DSA_METHODs (etc) as they did before, rather than
3025 dereferencing through an ENGINE pointer any more. Also, the ENGINE
3026 functions dealing with BN_MOD_EXP[_CRT] handlers have been removed -
3027 they were not being used by the framework as there is no concept of a
3028 BIGNUM_METHOD and they could not be generalised to the new
3029 'ENGINE_TABLE' mechanism that underlies the new code. Similarly,
3030 ENGINE_cpy() has been removed as it cannot be consistently defined in
3034 *) Change ASN1_GENERALIZEDTIME_check() to allow fractional seconds.
3037 *) Change mkdef.pl to sort symbols that get the same entry number,
3038 and make sure the automatically generated functions ERR_load_*
3039 become part of libeay.num as well.
3042 *) New function SSL_renegotiate_pending(). This returns true once
3043 renegotiation has been requested (either SSL_renegotiate() call
3044 or HelloRequest/ClientHello receveived from the peer) and becomes
3045 false once a handshake has been completed.
3046 (For servers, SSL_renegotiate() followed by SSL_do_handshake()
3047 sends a HelloRequest, but does not ensure that a handshake takes
3048 place. SSL_renegotiate_pending() is useful for checking if the
3049 client has followed the request.)
3052 *) New SSL option SSL_OP_NO_SESSION_RESUMPTION_ON_RENEGOTIATION.
3053 By default, clients may request session resumption even during
3054 renegotiation (if session ID contexts permit); with this option,
3055 session resumption is possible only in the first handshake.
3057 SSL_OP_ALL is now 0x00000FFFL instead of 0x000FFFFFL. This makes
3058 more bits available for options that should not be part of
3059 SSL_OP_ALL (such as SSL_OP_NO_SESSION_RESUMPTION_ON_RENEGOTIATION).
3062 *) Add some demos for certificate and certificate request creation.
3065 *) Make maximum certificate chain size accepted from the peer application
3066 settable (SSL*_get/set_max_cert_list()), as proposed by
3067 "Douglas E. Engert" <deengert@anl.gov>.
3070 *) Add support for shared libraries for Unixware-7
3071 (Boyd Lynn Gerber <gerberb@zenez.com>).
3074 *) Add a "destroy" handler to ENGINEs that allows structural cleanup to
3075 be done prior to destruction. Use this to unload error strings from
3076 ENGINEs that load their own error strings. NB: This adds two new API
3077 functions to "get" and "set" this destroy handler in an ENGINE.
3080 *) Alter all existing ENGINE implementations (except "openssl" and
3081 "openbsd") to dynamically instantiate their own error strings. This
3082 makes them more flexible to be built both as statically-linked ENGINEs
3083 and self-contained shared-libraries loadable via the "dynamic" ENGINE.
3084 Also, add stub code to each that makes building them as self-contained
3085 shared-libraries easier (see README.ENGINE).
3088 *) Add a "dynamic" ENGINE that provides a mechanism for binding ENGINE
3089 implementations into applications that are completely implemented in
3090 self-contained shared-libraries. The "dynamic" ENGINE exposes control
3091 commands that can be used to configure what shared-library to load and
3092 to control aspects of the way it is handled. Also, made an update to
3093 the README.ENGINE file that brings its information up-to-date and
3094 provides some information and instructions on the "dynamic" ENGINE
3095 (ie. how to use it, how to build "dynamic"-loadable ENGINEs, etc).
3098 *) Make it possible to unload ranges of ERR strings with a new
3099 "ERR_unload_strings" function.
3102 *) Add a copy() function to EVP_MD.
3105 *) Make EVP_MD routines take a context pointer instead of just the
3106 md_data void pointer.
3109 *) Add flags to EVP_MD and EVP_MD_CTX. EVP_MD_FLAG_ONESHOT indicates
3110 that the digest can only process a single chunk of data
3111 (typically because it is provided by a piece of
3112 hardware). EVP_MD_CTX_FLAG_ONESHOT indicates that the application
3113 is only going to provide a single chunk of data, and hence the
3114 framework needn't accumulate the data for oneshot drivers.
3117 *) As with "ERR", make it possible to replace the underlying "ex_data"
3118 functions. This change also alters the storage and management of global
3119 ex_data state - it's now all inside ex_data.c and all "class" code (eg.
3120 RSA, BIO, SSL_CTX, etc) no longer stores its own STACKS and per-class
3121 index counters. The API functions that use this state have been changed
3122 to take a "class_index" rather than pointers to the class's local STACK
3123 and counter, and there is now an API function to dynamically create new
3124 classes. This centralisation allows us to (a) plug a lot of the
3125 thread-safety problems that existed, and (b) makes it possible to clean
3126 up all allocated state using "CRYPTO_cleanup_all_ex_data()". W.r.t. (b)
3127 such data would previously have always leaked in application code and
3128 workarounds were in place to make the memory debugging turn a blind eye
3129 to it. Application code that doesn't use this new function will still
3130 leak as before, but their memory debugging output will announce it now
3131 rather than letting it slide.
3133 Besides the addition of CRYPTO_cleanup_all_ex_data(), another API change
3134 induced by the "ex_data" overhaul is that X509_STORE_CTX_init() now
3135 has a return value to indicate success or failure.
3138 *) Make it possible to replace the underlying "ERR" functions such that the
3139 global state (2 LHASH tables and 2 locks) is only used by the "default"
3140 implementation. This change also adds two functions to "get" and "set"
3141 the implementation prior to it being automatically set the first time
3142 any other ERR function takes place. Ie. an application can call "get",
3143 pass the return value to a module it has just loaded, and that module
3144 can call its own "set" function using that value. This means the
3145 module's "ERR" operations will use (and modify) the error state in the
3146 application and not in its own statically linked copy of OpenSSL code.
3149 *) Give DH, DSA, and RSA types their own "**_up_ref()" function to increment
3150 reference counts. This performs normal REF_PRINT/REF_CHECK macros on
3151 the operation, and provides a more encapsulated way for external code
3152 (crypto/evp/ and ssl/) to do this. Also changed the evp and ssl code
3153 to use these functions rather than manually incrementing the counts.
3155 Also rename "DSO_up()" function to more descriptive "DSO_up_ref()".
3158 *) Add EVP test program.
3161 *) Add symmetric cipher support to ENGINE. Expect the API to change!
3164 *) New CRL functions: X509_CRL_set_version(), X509_CRL_set_issuer_name()
3165 X509_CRL_set_lastUpdate(), X509_CRL_set_nextUpdate(), X509_CRL_sort(),
3166 X509_REVOKED_set_serialNumber(), and X509_REVOKED_set_revocationDate().
3167 These allow a CRL to be built without having to access X509_CRL fields
3168 directly. Modify 'ca' application to use new functions.
3171 *) Move SSL_OP_TLS_ROLLBACK_BUG out of the SSL_OP_ALL list of recommended
3172 bug workarounds. Rollback attack detection is a security feature.
3173 The problem will only arise on OpenSSL servers when TLSv1 is not
3174 available (sslv3_server_method() or SSL_OP_NO_TLSv1).
3175 Software authors not wanting to support TLSv1 will have special reasons
3176 for their choice and can explicitly enable this option.
3177 [Bodo Moeller, Lutz Jaenicke]
3179 *) Rationalise EVP so it can be extended: don't include a union of
3180 cipher/digest structures, add init/cleanup functions for EVP_MD_CTX
3181 (similar to those existing for EVP_CIPHER_CTX).
3186 EVP_MD_CTX_init(&md); /* new function call */
3187 EVP_DigestInit(&md, EVP_sha1());
3188 EVP_DigestUpdate(&md, in, len);
3189 EVP_DigestFinal(&md, out, NULL);
3190 EVP_MD_CTX_cleanup(&md); /* new function call */
3194 *) Make DES key schedule conform to the usual scheme, as well as
3195 correcting its structure. This means that calls to DES functions
3196 now have to pass a pointer to a des_key_schedule instead of a
3197 plain des_key_schedule (which was actually always a pointer
3200 des_key_schedule ks;
3202 des_set_key_checked(..., &ks);
3203 des_ncbc_encrypt(..., &ks, ...);
3205 (Note that a later change renames 'des_...' into 'DES_...'.)
3208 *) Initial reduction of linker bloat: the use of some functions, such as
3209 PEM causes large amounts of unused functions to be linked in due to
3210 poor organisation. For example pem_all.c contains every PEM function
3211 which has a knock on effect of linking in large amounts of (unused)
3212 ASN1 code. Grouping together similar functions and splitting unrelated
3213 functions prevents this.
3216 *) Cleanup of EVP macros.
3219 *) Change historical references to {NID,SN,LN}_des_ede and ede3 to add the
3220 correct _ecb suffix.
3223 *) Add initial OCSP responder support to ocsp application. The
3224 revocation information is handled using the text based index
3225 use by the ca application. The responder can either handle
3226 requests generated internally, supplied in files (for example
3227 via a CGI script) or using an internal minimal server.
3230 *) Add configuration choices to get zlib compression for TLS.
3233 *) Changes to Kerberos SSL for RFC 2712 compliance:
3234 1. Implemented real KerberosWrapper, instead of just using
3235 KRB5 AP_REQ message. [Thanks to Simon Wilkinson <sxw@sxw.org.uk>]
3236 2. Implemented optional authenticator field of KerberosWrapper.
3238 Added openssl-style ASN.1 macros for Kerberos ticket, ap_req,
3239 and authenticator structs; see crypto/krb5/.
3241 Generalized Kerberos calls to support multiple Kerberos libraries.
3242 [Vern Staats <staatsvr@asc.hpc.mil>,
3243 Jeffrey Altman <jaltman@columbia.edu>
3244 via Richard Levitte]
3246 *) Cause 'openssl speed' to use fully hard-coded DSA keys as it
3247 already does with RSA. testdsa.h now has 'priv_key/pub_key'
3248 values for each of the key sizes rather than having just
3249 parameters (and 'speed' generating keys each time).
3252 *) Speed up EVP routines.
3255 type 8 bytes 64 bytes 256 bytes 1024 bytes 8192 bytes
3256 des-cbc 4408.85k 5560.51k 5778.46k 5862.20k 5825.16k
3257 des-cbc 4389.55k 5571.17k 5792.23k 5846.91k 5832.11k
3258 des-cbc 4394.32k 5575.92k 5807.44k 5848.37k 5841.30k
3260 des-cbc 3482.66k 5069.49k 5496.39k 5614.16k 5639.28k
3261 des-cbc 3480.74k 5068.76k 5510.34k 5609.87k 5635.52k
3262 des-cbc 3483.72k 5067.62k 5504.60k 5708.01k 5724.80k
3265 des-cbc 4660.16k 5650.19k 5807.19k 5827.13k 5783.32k
3267 des-cbc 3624.96k 5258.21k 5530.91k 5624.30k 5628.26k
3270 *) Added the OS2-EMX target.
3271 ["Brian Havard" <brianh@kheldar.apana.org.au> and Richard Levitte]
3273 *) Rewrite apps to use NCONF routines instead of the old CONF. New functions
3274 to support NCONF routines in extension code. New function CONF_set_nconf()
3275 to allow functions which take an NCONF to also handle the old LHASH
3276 structure: this means that the old CONF compatible routines can be
3277 retained (in particular wrt extensions) without having to duplicate the
3278 code. New function X509V3_add_ext_nconf_sk to add extensions to a stack.
3281 *) Enhance the general user interface with mechanisms for inner control
3282 and with possibilities to have yes/no kind of prompts.
3285 *) Change all calls to low level digest routines in the library and
3286 applications to use EVP. Add missing calls to HMAC_cleanup() and
3287 don't assume HMAC_CTX can be copied using memcpy().
3288 [Verdon Walker <VWalker@novell.com>, Steve Henson]
3290 *) Add the possibility to control engines through control names but with
3291 arbitrary arguments instead of just a string.
3292 Change the key loaders to take a UI_METHOD instead of a callback
3293 function pointer. NOTE: this breaks binary compatibility with earlier
3294 versions of OpenSSL [engine].
3295 Adapt the nCipher code for these new conditions and add a card insertion
3299 *) Enhance the general user interface with mechanisms to better support
3300 dialog box interfaces, application-defined prompts, the possibility
3301 to use defaults (for example default passwords from somewhere else)
3302 and interrupts/cancellations.
3305 *) Tidy up PKCS#12 attribute handling. Add support for the CSP name
3306 attribute in PKCS#12 files, add new -CSP option to pkcs12 utility.
3309 *) Fix a memory leak in 'sk_dup()' in the case reallocation fails. (Also
3310 tidy up some unnecessarily weird code in 'sk_new()').
3311 [Geoff, reported by Diego Tartara <dtartara@novamens.com>]
3313 *) Change the key loading routines for ENGINEs to use the same kind
3314 callback (pem_password_cb) as all other routines that need this
3318 *) Increase ENTROPY_NEEDED to 32 bytes, as Rijndael can operate with
3319 256 bit (=32 byte) keys. Of course seeding with more entropy bytes
3320 than this minimum value is recommended.
3323 *) New random seeder for OpenVMS, using the system process statistics
3324 that are easily reachable.
3327 *) Windows apparently can't transparently handle global
3328 variables defined in DLLs. Initialisations such as:
3330 const ASN1_ITEM *it = &ASN1_INTEGER_it;
3332 wont compile. This is used by the any applications that need to
3333 declare their own ASN1 modules. This was fixed by adding the option
3334 EXPORT_VAR_AS_FN to all Win32 platforms, although this isn't strictly
3335 needed for static libraries under Win32.
3338 *) New functions X509_PURPOSE_set() and X509_TRUST_set() to handle
3339 setting of purpose and trust fields. New X509_STORE trust and
3340 purpose functions and tidy up setting in other SSL functions.
3343 *) Add copies of X509_STORE_CTX fields and callbacks to X509_STORE
3344 structure. These are inherited by X509_STORE_CTX when it is
3345 initialised. This allows various defaults to be set in the
3346 X509_STORE structure (such as flags for CRL checking and custom
3347 purpose or trust settings) for functions which only use X509_STORE_CTX
3348 internally such as S/MIME.
3350 Modify X509_STORE_CTX_purpose_inherit() so it only sets purposes and
3351 trust settings if they are not set in X509_STORE. This allows X509_STORE
3352 purposes and trust (in S/MIME for example) to override any set by default.
3354 Add command line options for CRL checking to smime, s_client and s_server
3358 *) Initial CRL based revocation checking. If the CRL checking flag(s)
3359 are set then the CRL is looked up in the X509_STORE structure and
3360 its validity and signature checked, then if the certificate is found
3361 in the CRL the verify fails with a revoked error.
3363 Various new CRL related callbacks added to X509_STORE_CTX structure.
3365 Command line options added to 'verify' application to support this.
3367 This needs some additional work, such as being able to handle multiple
3368 CRLs with different times, extension based lookup (rather than just
3369 by subject name) and ultimately more complete V2 CRL extension
3373 *) Add a general user interface API (crypto/ui/). This is designed
3374 to replace things like des_read_password and friends (backward
3375 compatibility functions using this new API are provided).
3376 The purpose is to remove prompting functions from the DES code
3377 section as well as provide for prompting through dialog boxes in
3378 a window system and the like.
3381 *) Add "ex_data" support to ENGINE so implementations can add state at a
3382 per-structure level rather than having to store it globally.
3385 *) Make it possible for ENGINE structures to be copied when retrieved by
3386 ENGINE_by_id() if the ENGINE specifies a new flag: ENGINE_FLAGS_BY_ID_COPY.
3387 This causes the "original" ENGINE structure to act like a template,
3388 analogous to the RSA vs. RSA_METHOD type of separation. Because of this
3389 operational state can be localised to each ENGINE structure, despite the
3390 fact they all share the same "methods". New ENGINE structures returned in
3391 this case have no functional references and the return value is the single
3392 structural reference. This matches the single structural reference returned
3393 by ENGINE_by_id() normally, when it is incremented on the pre-existing
3397 *) Fix ASN1 decoder when decoding type ANY and V_ASN1_OTHER: since this
3398 needs to match any other type at all we need to manually clear the
3402 *) Changes to the "openssl engine" utility to include;
3403 - verbosity levels ('-v', '-vv', and '-vvv') that provide information
3404 about an ENGINE's available control commands.
3405 - executing control commands from command line arguments using the
3406 '-pre' and '-post' switches. '-post' is only used if '-t' is
3407 specified and the ENGINE is successfully initialised. The syntax for
3408 the individual commands are colon-separated, for example;
3409 openssl engine chil -pre FORK_CHECK:0 -pre SO_PATH:/lib/test.so
3412 *) New dynamic control command support for ENGINEs. ENGINEs can now
3413 declare their own commands (numbers), names (strings), descriptions,
3414 and input types for run-time discovery by calling applications. A
3415 subset of these commands are implicitly classed as "executable"
3416 depending on their input type, and only these can be invoked through
3417 the new string-based API function ENGINE_ctrl_cmd_string(). (Eg. this
3418 can be based on user input, config files, etc). The distinction is
3419 that "executable" commands cannot return anything other than a boolean
3420 result and can only support numeric or string input, whereas some
3421 discoverable commands may only be for direct use through
3422 ENGINE_ctrl(), eg. supporting the exchange of binary data, function
3423 pointers, or other custom uses. The "executable" commands are to
3424 support parameterisations of ENGINE behaviour that can be
3425 unambiguously defined by ENGINEs and used consistently across any
3426 OpenSSL-based application. Commands have been added to all the
3427 existing hardware-supporting ENGINEs, noticeably "SO_PATH" to allow
3428 control over shared-library paths without source code alterations.
3431 *) Changed all ENGINE implementations to dynamically allocate their
3432 ENGINEs rather than declaring them statically. Apart from this being
3433 necessary with the removal of the ENGINE_FLAGS_MALLOCED distinction,
3434 this also allows the implementations to compile without using the
3435 internal engine_int.h header.
3438 *) Minor adjustment to "rand" code. RAND_get_rand_method() now returns a
3439 'const' value. Any code that should be able to modify a RAND_METHOD
3440 should already have non-const pointers to it (ie. they should only
3441 modify their own ones).
3444 *) Made a variety of little tweaks to the ENGINE code.
3445 - "atalla" and "ubsec" string definitions were moved from header files
3446 to C code. "nuron" string definitions were placed in variables
3447 rather than hard-coded - allowing parameterisation of these values
3448 later on via ctrl() commands.
3449 - Removed unused "#if 0"'d code.
3450 - Fixed engine list iteration code so it uses ENGINE_free() to release
3451 structural references.
3452 - Constified the RAND_METHOD element of ENGINE structures.
3453 - Constified various get/set functions as appropriate and added
3454 missing functions (including a catch-all ENGINE_cpy that duplicates
3455 all ENGINE values onto a new ENGINE except reference counts/state).
3456 - Removed NULL parameter checks in get/set functions. Setting a method
3457 or function to NULL is a way of cancelling out a previously set
3458 value. Passing a NULL ENGINE parameter is just plain stupid anyway
3459 and doesn't justify the extra error symbols and code.
3460 - Deprecate the ENGINE_FLAGS_MALLOCED define and move the area for
3461 flags from engine_int.h to engine.h.
3462 - Changed prototypes for ENGINE handler functions (init(), finish(),
3463 ctrl(), key-load functions, etc) to take an (ENGINE*) parameter.
3466 *) Implement binary inversion algorithm for BN_mod_inverse in addition
3467 to the algorithm using long division. The binary algorithm can be
3468 used only if the modulus is odd. On 32-bit systems, it is faster
3469 only for relatively small moduli (roughly 20-30% for 128-bit moduli,
3470 roughly 5-15% for 256-bit moduli), so we use it only for moduli
3471 up to 450 bits. In 64-bit environments, the binary algorithm
3472 appears to be advantageous for much longer moduli; here we use it
3473 for moduli up to 2048 bits.
3476 *) Rewrite CHOICE field setting in ASN1_item_ex_d2i(). The old code
3477 could not support the combine flag in choice fields.
3480 *) Add a 'copy_extensions' option to the 'ca' utility. This copies
3481 extensions from a certificate request to the certificate.
3484 *) Allow multiple 'certopt' and 'nameopt' options to be separated
3485 by commas. Add 'namopt' and 'certopt' options to the 'ca' config
3486 file: this allows the display of the certificate about to be
3487 signed to be customised, to allow certain fields to be included
3488 or excluded and extension details. The old system didn't display
3489 multicharacter strings properly, omitted fields not in the policy
3490 and couldn't display additional details such as extensions.
3493 *) Function EC_POINTs_mul for multiple scalar multiplication
3494 of an arbitrary number of elliptic curve points
3495 \sum scalars[i]*points[i],
3496 optionally including the generator defined for the EC_GROUP:
3497 scalar*generator + \sum scalars[i]*points[i].
3499 EC_POINT_mul is a simple wrapper function for the typical case
3500 that the point list has just one item (besides the optional
3504 *) First EC_METHODs for curves over GF(p):
3506 EC_GFp_simple_method() uses the basic BN_mod_mul and BN_mod_sqr
3507 operations and provides various method functions that can also
3508 operate with faster implementations of modular arithmetic.
3510 EC_GFp_mont_method() reuses most functions that are part of
3511 EC_GFp_simple_method, but uses Montgomery arithmetic.
3513 [Bodo Moeller; point addition and point doubling
3514 implementation directly derived from source code provided by
3515 Lenka Fibikova <fibikova@exp-math.uni-essen.de>]
3517 *) Framework for elliptic curves (crypto/ec/ec.h, crypto/ec/ec_lcl.h,
3518 crypto/ec/ec_lib.c):
3520 Curves are EC_GROUP objects (with an optional group generator)
3521 based on EC_METHODs that are built into the library.
3523 Points are EC_POINT objects based on EC_GROUP objects.
3525 Most of the framework would be able to handle curves over arbitrary
3526 finite fields, but as there are no obvious types for fields other
3527 than GF(p), some functions are limited to that for now.
3530 *) Add the -HTTP option to s_server. It is similar to -WWW, but requires
3531 that the file contains a complete HTTP response.
3534 *) Add the ec directory to mkdef.pl and mkfiles.pl. In mkdef.pl
3535 change the def and num file printf format specifier from "%-40sXXX"
3536 to "%-39s XXX". The latter will always guarantee a space after the
3537 field while the former will cause them to run together if the field
3538 is 40 of more characters long.
3541 *) Constify the cipher and digest 'method' functions and structures
3542 and modify related functions to take constant EVP_MD and EVP_CIPHER
3546 *) Hide BN_CTX structure details in bn_lcl.h instead of publishing them
3547 in <openssl/bn.h>. Also further increase BN_CTX_NUM to 32.
3550 *) Modify EVP_Digest*() routines so they now return values. Although the
3551 internal software routines can never fail additional hardware versions
3555 *) Clean up crypto/err/err.h and change some error codes to avoid conflicts:
3557 Previously ERR_R_FATAL was too small and coincided with ERR_LIB_PKCS7
3558 (= ERR_R_PKCS7_LIB); it is now 64 instead of 32.
3561 ERR_R_NESTED_ASN1_ERROR
3563 ERR_R_MISSING_ASN1_EOS
3564 were 4 .. 9, conflicting with
3565 ERR_LIB_RSA (= ERR_R_RSA_LIB)
3567 ERR_LIB_PEM (= ERR_R_PEM_LIB).
3568 They are now 58 .. 63 (i.e., just below ERR_R_FATAL).
3570 Add new error code 'ERR_R_INTERNAL_ERROR'.
3573 *) Don't overuse locks in crypto/err/err.c: For data retrieval, CRYPTO_r_lock
3577 *) New option '-subj arg' for 'openssl req' and 'openssl ca'. This
3578 sets the subject name for a new request or supersedes the
3579 subject name in a given request. Formats that can be parsed are
3580 'CN=Some Name, OU=myOU, C=IT'
3582 'CN=Some Name/OU=myOU/C=IT'.
3584 Add options '-batch' and '-verbose' to 'openssl req'.
3585 [Massimiliano Pala <madwolf@hackmasters.net>]
3587 *) Introduce the possibility to access global variables through
3588 functions on platform were that's the best way to handle exporting
3589 global variables in shared libraries. To enable this functionality,
3590 one must configure with "EXPORT_VAR_AS_FN" or defined the C macro
3591 "OPENSSL_EXPORT_VAR_AS_FUNCTION" in crypto/opensslconf.h (the latter
3592 is normally done by Configure or something similar).
3594 To implement a global variable, use the macro OPENSSL_IMPLEMENT_GLOBAL
3595 in the source file (foo.c) like this:
3597 OPENSSL_IMPLEMENT_GLOBAL(int,foo)=1;
3598 OPENSSL_IMPLEMENT_GLOBAL(double,bar);
3600 To declare a global variable, use the macros OPENSSL_DECLARE_GLOBAL
3601 and OPENSSL_GLOBAL_REF in the header file (foo.h) like this:
3603 OPENSSL_DECLARE_GLOBAL(int,foo);
3604 #define foo OPENSSL_GLOBAL_REF(foo)
3605 OPENSSL_DECLARE_GLOBAL(double,bar);
3606 #define bar OPENSSL_GLOBAL_REF(bar)
3608 The #defines are very important, and therefore so is including the
3609 header file everywhere where the defined globals are used.
3611 The macro OPENSSL_EXPORT_VAR_AS_FUNCTION also affects the definition
3612 of ASN.1 items, but that structure is a bit different.
3614 The largest change is in util/mkdef.pl which has been enhanced with
3615 better and easier to understand logic to choose which symbols should
3616 go into the Windows .def files as well as a number of fixes and code
3617 cleanup (among others, algorithm keywords are now sorted
3618 lexicographically to avoid constant rewrites).
3621 *) In BN_div() keep a copy of the sign of 'num' before writing the
3622 result to 'rm' because if rm==num the value will be overwritten
3623 and produce the wrong result if 'num' is negative: this caused
3624 problems with BN_mod() and BN_nnmod().
3627 *) Function OCSP_request_verify(). This checks the signature on an
3628 OCSP request and verifies the signer certificate. The signer
3629 certificate is just checked for a generic purpose and OCSP request
3633 *) Add OCSP_check_validity() function to check the validity of OCSP
3634 responses. OCSP responses are prepared in real time and may only
3635 be a few seconds old. Simply checking that the current time lies
3636 between thisUpdate and nextUpdate max reject otherwise valid responses
3637 caused by either OCSP responder or client clock inaccuracy. Instead
3638 we allow thisUpdate and nextUpdate to fall within a certain period of
3639 the current time. The age of the response can also optionally be
3640 checked. Two new options -validity_period and -status_age added to
3644 *) If signature or public key algorithm is unrecognized print out its
3645 OID rather that just UNKNOWN.
3648 *) Change OCSP_cert_to_id() to tolerate a NULL subject certificate and
3649 OCSP_cert_id_new() a NULL serialNumber. This allows a partial certificate
3650 ID to be generated from the issuer certificate alone which can then be
3651 passed to OCSP_id_issuer_cmp().
3654 *) New compilation option ASN1_ITEM_FUNCTIONS. This causes the new
3655 ASN1 modules to export functions returning ASN1_ITEM pointers
3656 instead of the ASN1_ITEM structures themselves. This adds several
3657 new macros which allow the underlying ASN1 function/structure to
3658 be accessed transparently. As a result code should not use ASN1_ITEM
3659 references directly (such as &X509_it) but instead use the relevant
3660 macros (such as ASN1_ITEM_rptr(X509)). This option is to allow
3661 use of the new ASN1 code on platforms where exporting structures
3662 is problematical (for example in shared libraries) but exporting
3663 functions returning pointers to structures is not.
3666 *) Add support for overriding the generation of SSL/TLS session IDs.
3667 These callbacks can be registered either in an SSL_CTX or per SSL.
3668 The purpose of this is to allow applications to control, if they wish,
3669 the arbitrary values chosen for use as session IDs, particularly as it
3670 can be useful for session caching in multiple-server environments. A
3671 command-line switch for testing this (and any client code that wishes
3672 to use such a feature) has been added to "s_server".
3673 [Geoff Thorpe, Lutz Jaenicke]
3675 *) Modify mkdef.pl to recognise and parse preprocessor conditionals
3676 of the form '#if defined(...) || defined(...) || ...' and
3677 '#if !defined(...) && !defined(...) && ...'. This also avoids
3678 the growing number of special cases it was previously handling.
3681 *) Make all configuration macros available for application by making
3682 sure they are available in opensslconf.h, by giving them names starting
3683 with "OPENSSL_" to avoid conflicts with other packages and by making
3684 sure e_os2.h will cover all platform-specific cases together with
3686 Additionally, it is now possible to define configuration/platform-
3687 specific names (called "system identities"). In the C code, these
3688 are prefixed with "OPENSSL_SYSNAME_". e_os2.h will create another
3689 macro with the name beginning with "OPENSSL_SYS_", which is determined
3690 from "OPENSSL_SYSNAME_*" or compiler-specific macros depending on
3694 *) New option -set_serial to 'req' and 'x509' this allows the serial
3695 number to use to be specified on the command line. Previously self
3696 signed certificates were hard coded with serial number 0 and the
3697 CA options of 'x509' had to use a serial number in a file which was
3701 *) New options to 'ca' utility to support V2 CRL entry extensions.
3702 Currently CRL reason, invalidity date and hold instruction are
3703 supported. Add new CRL extensions to V3 code and some new objects.
3706 *) New function EVP_CIPHER_CTX_set_padding() this is used to
3707 disable standard block padding (aka PKCS#5 padding) in the EVP
3708 API, which was previously mandatory. This means that the data is
3709 not padded in any way and so the total length much be a multiple
3710 of the block size, otherwise an error occurs.
3713 *) Initial (incomplete) OCSP SSL support.
3716 *) New function OCSP_parse_url(). This splits up a URL into its host,
3717 port and path components: primarily to parse OCSP URLs. New -url
3718 option to ocsp utility.
3721 *) New nonce behavior. The return value of OCSP_check_nonce() now
3722 reflects the various checks performed. Applications can decide
3723 whether to tolerate certain situations such as an absent nonce
3724 in a response when one was present in a request: the ocsp application
3725 just prints out a warning. New function OCSP_add1_basic_nonce()
3726 this is to allow responders to include a nonce in a response even if
3727 the request is nonce-less.
3730 *) Disable stdin buffering in load_cert (apps/apps.c) so that no certs are
3731 skipped when using openssl x509 multiple times on a single input file,
3732 e.g. "(openssl x509 -out cert1; openssl x509 -out cert2) <certs".
3735 *) Make ASN1_UTCTIME_set_string() and ASN1_GENERALIZEDTIME_set_string()
3736 set string type: to handle setting ASN1_TIME structures. Fix ca
3737 utility to correctly initialize revocation date of CRLs.
3740 *) New option SSL_OP_CIPHER_SERVER_PREFERENCE allows the server to override
3741 the clients preferred ciphersuites and rather use its own preferences.
3742 Should help to work around M$ SGC (Server Gated Cryptography) bug in
3743 Internet Explorer by ensuring unchanged hash method during stepup.
3744 (Also replaces the broken/deactivated SSL_OP_NON_EXPORT_FIRST option.)
3747 *) Make mkdef.pl recognise all DECLARE_ASN1 macros, change rijndael
3748 to aes and add a new 'exist' option to print out symbols that don't
3752 *) Additional options to ocsp utility to allow flags to be set and
3753 additional certificates supplied.
3756 *) Add the option -VAfile to 'openssl ocsp', so the user can give the
3757 OCSP client a number of certificate to only verify the response
3761 *) Update Rijndael code to version 3.0 and change EVP AES ciphers to
3762 handle the new API. Currently only ECB, CBC modes supported. Add new
3765 Add TLS AES ciphersuites as described in RFC3268, "Advanced
3766 Encryption Standard (AES) Ciphersuites for Transport Layer
3767 Security (TLS)". (In beta versions of OpenSSL 0.9.7, these were
3768 not enabled by default and were not part of the "ALL" ciphersuite
3769 alias because they were not yet official; they could be
3770 explicitly requested by specifying the "AESdraft" ciphersuite
3771 group alias. In the final release of OpenSSL 0.9.7, the group
3772 alias is called "AES" and is part of "ALL".)
3773 [Ben Laurie, Steve Henson, Bodo Moeller]
3775 *) New function OCSP_copy_nonce() to copy nonce value (if present) from
3776 request to response.
3779 *) Functions for OCSP responders. OCSP_request_onereq_count(),
3780 OCSP_request_onereq_get0(), OCSP_onereq_get0_id() and OCSP_id_get0_info()
3781 extract information from a certificate request. OCSP_response_create()
3782 creates a response and optionally adds a basic response structure.
3783 OCSP_basic_add1_status() adds a complete single response to a basic
3784 response and returns the OCSP_SINGLERESP structure just added (to allow
3785 extensions to be included for example). OCSP_basic_add1_cert() adds a
3786 certificate to a basic response and OCSP_basic_sign() signs a basic
3787 response with various flags. New helper functions ASN1_TIME_check()
3788 (checks validity of ASN1_TIME structure) and ASN1_TIME_to_generalizedtime()
3789 (converts ASN1_TIME to GeneralizedTime).
3792 *) Various new functions. EVP_Digest() combines EVP_Digest{Init,Update,Final}()
3793 in a single operation. X509_get0_pubkey_bitstr() extracts the public_key
3794 structure from a certificate. X509_pubkey_digest() digests the public_key
3795 contents: this is used in various key identifiers.
3798 *) Make sk_sort() tolerate a NULL argument.
3799 [Steve Henson reported by Massimiliano Pala <madwolf@comune.modena.it>]
3801 *) New OCSP verify flag OCSP_TRUSTOTHER. When set the "other" certificates
3802 passed by the function are trusted implicitly. If any of them signed the
3803 response then it is assumed to be valid and is not verified.
3806 *) In PKCS7_set_type() initialise content_type in PKCS7_ENC_CONTENT
3807 to data. This was previously part of the PKCS7 ASN1 code. This
3808 was causing problems with OpenSSL created PKCS#12 and PKCS#7 structures.
3809 [Steve Henson, reported by Kenneth R. Robinette
3810 <support@securenetterm.com>]
3812 *) Add CRYPTO_push_info() and CRYPTO_pop_info() calls to new ASN1
3813 routines: without these tracing memory leaks is very painful.
3814 Fix leaks in PKCS12 and PKCS7 routines.
3817 *) Make X509_time_adj() cope with the new behaviour of ASN1_TIME_new().
3818 Previously it initialised the 'type' argument to V_ASN1_UTCTIME which
3819 effectively meant GeneralizedTime would never be used. Now it
3820 is initialised to -1 but X509_time_adj() now has to check the value
3821 and use ASN1_TIME_set() if the value is not V_ASN1_UTCTIME or
3822 V_ASN1_GENERALIZEDTIME, without this it always uses GeneralizedTime.
3823 [Steve Henson, reported by Kenneth R. Robinette
3824 <support@securenetterm.com>]
3826 *) Fixes to BN_to_ASN1_INTEGER when bn is zero. This would previously
3827 result in a zero length in the ASN1_INTEGER structure which was
3828 not consistent with the structure when d2i_ASN1_INTEGER() was used
3829 and would cause ASN1_INTEGER_cmp() to fail. Enhance s2i_ASN1_INTEGER()
3830 to cope with hex and negative integers. Fix bug in i2a_ASN1_INTEGER()
3831 where it did not print out a minus for negative ASN1_INTEGER.
3834 *) Add summary printout to ocsp utility. The various functions which
3835 convert status values to strings have been renamed to:
3836 OCSP_response_status_str(), OCSP_cert_status_str() and
3837 OCSP_crl_reason_str() and are no longer static. New options
3838 to verify nonce values and to disable verification. OCSP response
3839 printout format cleaned up.
3842 *) Add additional OCSP certificate checks. These are those specified
3843 in RFC2560. This consists of two separate checks: the CA of the
3844 certificate being checked must either be the OCSP signer certificate
3845 or the issuer of the OCSP signer certificate. In the latter case the
3846 OCSP signer certificate must contain the OCSP signing extended key
3847 usage. This check is performed by attempting to match the OCSP
3848 signer or the OCSP signer CA to the issuerNameHash and issuerKeyHash
3849 in the OCSP_CERTID structures of the response.
3852 *) Initial OCSP certificate verification added to OCSP_basic_verify()
3853 and related routines. This uses the standard OpenSSL certificate
3854 verify routines to perform initial checks (just CA validity) and
3855 to obtain the certificate chain. Then additional checks will be
3856 performed on the chain. Currently the root CA is checked to see
3857 if it is explicitly trusted for OCSP signing. This is used to set
3858 a root CA as a global signing root: that is any certificate that
3859 chains to that CA is an acceptable OCSP signing certificate.
3862 *) New '-extfile ...' option to 'openssl ca' for reading X.509v3
3863 extensions from a separate configuration file.
3864 As when reading extensions from the main configuration file,
3865 the '-extensions ...' option may be used for specifying the
3867 [Massimiliano Pala <madwolf@comune.modena.it>]
3869 *) New OCSP utility. Allows OCSP requests to be generated or
3870 read. The request can be sent to a responder and the output
3871 parsed, outputed or printed in text form. Not complete yet:
3872 still needs to check the OCSP response validity.
3875 *) New subcommands for 'openssl ca':
3876 'openssl ca -status <serial>' prints the status of the cert with
3877 the given serial number (according to the index file).
3878 'openssl ca -updatedb' updates the expiry status of certificates
3880 [Massimiliano Pala <madwolf@comune.modena.it>]
3882 *) New '-newreq-nodes' command option to CA.pl. This is like
3883 '-newreq', but calls 'openssl req' with the '-nodes' option
3884 so that the resulting key is not encrypted.
3885 [Damien Miller <djm@mindrot.org>]
3887 *) New configuration for the GNU Hurd.
3888 [Jonathan Bartlett <johnnyb@wolfram.com> via Richard Levitte]
3890 *) Initial code to implement OCSP basic response verify. This
3891 is currently incomplete. Currently just finds the signer's
3892 certificate and verifies the signature on the response.
3895 *) New SSLeay_version code SSLEAY_DIR to determine the compiled-in
3896 value of OPENSSLDIR. This is available via the new '-d' option
3897 to 'openssl version', and is also included in 'openssl version -a'.
3900 *) Allowing defining memory allocation callbacks that will be given
3901 file name and line number information in additional arguments
3902 (a const char* and an int). The basic functionality remains, as
3903 well as the original possibility to just replace malloc(),
3904 realloc() and free() by functions that do not know about these
3905 additional arguments. To register and find out the current
3906 settings for extended allocation functions, the following
3907 functions are provided:
3909 CRYPTO_set_mem_ex_functions
3910 CRYPTO_set_locked_mem_ex_functions
3911 CRYPTO_get_mem_ex_functions
3912 CRYPTO_get_locked_mem_ex_functions
3914 These work the same way as CRYPTO_set_mem_functions and friends.
3915 CRYPTO_get_[locked_]mem_functions now writes 0 where such an
3916 extended allocation function is enabled.
3917 Similarly, CRYPTO_get_[locked_]mem_ex_functions writes 0 where
3918 a conventional allocation function is enabled.
3919 [Richard Levitte, Bodo Moeller]
3921 *) Finish off removing the remaining LHASH function pointer casts.
3922 There should no longer be any prototype-casting required when using
3923 the LHASH abstraction, and any casts that remain are "bugs". See
3924 the callback types and macros at the head of lhash.h for details
3925 (and "OBJ_cleanup" in crypto/objects/obj_dat.c as an example).
3928 *) Add automatic query of EGD sockets in RAND_poll() for the unix variant.
3929 If /dev/[u]random devices are not available or do not return enough
3930 entropy, EGD style sockets (served by EGD or PRNGD) will automatically
3932 The locations /var/run/egd-pool, /dev/egd-pool, /etc/egd-pool, and
3933 /etc/entropy will be queried once each in this sequence, quering stops
3934 when enough entropy was collected without querying more sockets.
3937 *) Change the Unix RAND_poll() variant to be able to poll several
3938 random devices, as specified by DEVRANDOM, until a sufficient amount
3939 of data has been collected. We spend at most 10 ms on each file
3940 (select timeout) and read in non-blocking mode. DEVRANDOM now
3941 defaults to the list "/dev/urandom", "/dev/random", "/dev/srandom"
3942 (previously it was just the string "/dev/urandom"), so on typical
3943 platforms the 10 ms delay will never occur.
3944 Also separate out the Unix variant to its own file, rand_unix.c.
3945 For VMS, there's a currently-empty rand_vms.c.
3948 *) Move OCSP client related routines to ocsp_cl.c. These
3949 provide utility functions which an application needing
3950 to issue a request to an OCSP responder and analyse the
3951 response will typically need: as opposed to those which an
3952 OCSP responder itself would need which will be added later.
3954 OCSP_request_sign() signs an OCSP request with an API similar
3955 to PKCS7_sign(). OCSP_response_status() returns status of OCSP
3956 response. OCSP_response_get1_basic() extracts basic response
3957 from response. OCSP_resp_find_status(): finds and extracts status
3958 information from an OCSP_CERTID structure (which will be created
3959 when the request structure is built). These are built from lower
3960 level functions which work on OCSP_SINGLERESP structures but
3961 wont normally be used unless the application wishes to examine
3962 extensions in the OCSP response for example.
3964 Replace nonce routines with a pair of functions.
3965 OCSP_request_add1_nonce() adds a nonce value and optionally
3966 generates a random value. OCSP_check_nonce() checks the
3967 validity of the nonce in an OCSP response.
3970 *) Change function OCSP_request_add() to OCSP_request_add0_id().
3971 This doesn't copy the supplied OCSP_CERTID and avoids the
3972 need to free up the newly created id. Change return type
3973 to OCSP_ONEREQ to return the internal OCSP_ONEREQ structure.
3974 This can then be used to add extensions to the request.
3975 Deleted OCSP_request_new(), since most of its functionality
3976 is now in OCSP_REQUEST_new() (and the case insensitive name
3977 clash) apart from the ability to set the request name which
3978 will be added elsewhere.
3981 *) Update OCSP API. Remove obsolete extensions argument from
3982 various functions. Extensions are now handled using the new
3983 OCSP extension code. New simple OCSP HTTP function which
3984 can be used to send requests and parse the response.
3987 *) Fix the PKCS#7 (S/MIME) code to work with new ASN1. Two new
3988 ASN1_ITEM structures help with sign and verify. PKCS7_ATTR_SIGN
3989 uses the special reorder version of SET OF to sort the attributes
3990 and reorder them to match the encoded order. This resolves a long
3991 standing problem: a verify on a PKCS7 structure just after signing
3992 it used to fail because the attribute order did not match the
3993 encoded order. PKCS7_ATTR_VERIFY does not reorder the attributes:
3994 it uses the received order. This is necessary to tolerate some broken
3995 software that does not order SET OF. This is handled by encoding
3996 as a SEQUENCE OF but using implicit tagging (with UNIVERSAL class)
3997 to produce the required SET OF.
4000 *) Have mk1mf.pl generate the macros OPENSSL_BUILD_SHLIBCRYPTO and
4001 OPENSSL_BUILD_SHLIBSSL and use them appropriately in the header
4002 files to get correct declarations of the ASN.1 item variables.
4005 *) Rewrite of PKCS#12 code to use new ASN1 functionality. Replace many
4006 PKCS#12 macros with real functions. Fix two unrelated ASN1 bugs:
4007 asn1_check_tlen() would sometimes attempt to use 'ctx' when it was
4008 NULL and ASN1_TYPE was not dereferenced properly in asn1_ex_c2i().
4009 New ASN1 macro: DECLARE_ASN1_ITEM() which just declares the relevant
4010 ASN1_ITEM and no wrapper functions.
4013 *) New functions or ASN1_item_d2i_fp() and ASN1_item_d2i_bio(). These
4014 replace the old function pointer based I/O routines. Change most of
4015 the *_d2i_bio() and *_d2i_fp() functions to use these.
4018 *) Enhance mkdef.pl to be more accepting about spacing in C preprocessor
4019 lines, recognice more "algorithms" that can be deselected, and make
4020 it complain about algorithm deselection that isn't recognised.
4023 *) New ASN1 functions to handle dup, sign, verify, digest, pack and
4024 unpack operations in terms of ASN1_ITEM. Modify existing wrappers
4025 to use new functions. Add NO_ASN1_OLD which can be set to remove
4026 some old style ASN1 functions: this can be used to determine if old
4027 code will still work when these eventually go away.
4030 *) New extension functions for OCSP structures, these follow the
4031 same conventions as certificates and CRLs.
4034 *) New function X509V3_add1_i2d(). This automatically encodes and
4035 adds an extension. Its behaviour can be customised with various
4036 flags to append, replace or delete. Various wrappers added for
4037 certifcates and CRLs.
4040 *) Fix to avoid calling the underlying ASN1 print routine when
4041 an extension cannot be parsed. Correct a typo in the
4042 OCSP_SERVICELOC extension. Tidy up print OCSP format.
4045 *) Make mkdef.pl parse some of the ASN1 macros and add apropriate
4046 entries for variables.
4049 *) Add functionality to apps/openssl.c for detecting locking
4050 problems: As the program is single-threaded, all we have
4051 to do is register a locking callback using an array for
4052 storing which locks are currently held by the program.
4055 *) Use a lock around the call to CRYPTO_get_ex_new_index() in
4056 SSL_get_ex_data_X509_STORE_idx(), which is used in
4057 ssl_verify_cert_chain() and thus can be called at any time
4058 during TLS/SSL handshakes so that thread-safety is essential.
4059 Unfortunately, the ex_data design is not at all suited
4060 for multi-threaded use, so it probably should be abolished.
4063 *) Added Broadcom "ubsec" ENGINE to OpenSSL.
4064 [Broadcom, tweaked and integrated by Geoff Thorpe]
4066 *) Move common extension printing code to new function
4067 X509V3_print_extensions(). Reorganise OCSP print routines and
4068 implement some needed OCSP ASN1 functions. Add OCSP extensions.
4071 *) New function X509_signature_print() to remove duplication in some
4075 *) Add a special meaning when SET OF and SEQUENCE OF flags are both
4076 set (this was treated exactly the same as SET OF previously). This
4077 is used to reorder the STACK representing the structure to match the
4078 encoding. This will be used to get round a problem where a PKCS7
4079 structure which was signed could not be verified because the STACK
4080 order did not reflect the encoded order.
4083 *) Reimplement the OCSP ASN1 module using the new code.
4086 *) Update the X509V3 code to permit the use of an ASN1_ITEM structure
4087 for its ASN1 operations. The old style function pointers still exist
4088 for now but they will eventually go away.
4091 *) Merge in replacement ASN1 code from the ASN1 branch. This almost
4092 completely replaces the old ASN1 functionality with a table driven
4093 encoder and decoder which interprets an ASN1_ITEM structure describing
4094 the ASN1 module. Compatibility with the existing ASN1 API (i2d,d2i) is
4095 largely maintained. Almost all of the old asn1_mac.h macro based ASN1
4096 has also been converted to the new form.
4099 *) Change BN_mod_exp_recp so that negative moduli are tolerated
4100 (the sign is ignored). Similarly, ignore the sign in BN_MONT_CTX_set
4101 so that BN_mod_exp_mont and BN_mod_exp_mont_word work
4102 for negative moduli.
4105 *) Fix BN_uadd and BN_usub: Always return non-negative results instead
4106 of not touching the result's sign bit.
4109 *) BN_div bugfix: If the result is 0, the sign (res->neg) must not be
4113 *) Changed the LHASH code to use prototypes for callbacks, and created
4114 macros to declare and implement thin (optionally static) functions
4115 that provide type-safety and avoid function pointer casting for the
4116 type-specific callbacks.
4119 *) Added Kerberos Cipher Suites to be used with TLS, as written in
4121 [Veers Staats <staatsvr@asc.hpc.mil>,
4122 Jeffrey Altman <jaltman@columbia.edu>, via Richard Levitte]
4124 *) Reformat the FAQ so the different questions and answers can be divided
4125 in sections depending on the subject.
4128 *) Have the zlib compression code load ZLIB.DLL dynamically under
4132 *) New function BN_mod_sqrt for computing square roots modulo a prime
4133 (using the probabilistic Tonelli-Shanks algorithm unless
4134 p == 3 (mod 4) or p == 5 (mod 8), which are cases that can
4135 be handled deterministically).
4136 [Lenka Fibikova <fibikova@exp-math.uni-essen.de>, Bodo Moeller]
4138 *) Make BN_mod_inverse faster by explicitly handling small quotients
4139 in the Euclid loop. (Speed gain about 20% for small moduli [256 or
4140 512 bits], about 30% for larger ones [1024 or 2048 bits].)
4143 *) New function BN_kronecker.
4146 *) Fix BN_gcd so that it works on negative inputs; the result is
4147 positive unless both parameters are zero.
4148 Previously something reasonably close to an infinite loop was
4149 possible because numbers could be growing instead of shrinking
4150 in the implementation of Euclid's algorithm.
4153 *) Fix BN_is_word() and BN_is_one() macros to take into account the
4154 sign of the number in question.
4156 Fix BN_is_word(a,w) to work correctly for w == 0.
4158 The old BN_is_word(a,w) macro is now called BN_abs_is_word(a,w)
4159 because its test if the absolute value of 'a' equals 'w'.
4160 Note that BN_abs_is_word does *not* handle w == 0 reliably;
4161 it exists mostly for use in the implementations of BN_is_zero(),
4162 BN_is_one(), and BN_is_word().
4165 *) New function BN_swap.
4168 *) Use BN_nnmod instead of BN_mod in crypto/bn/bn_exp.c so that
4169 the exponentiation functions are more likely to produce reasonable
4170 results on negative inputs.
4173 *) Change BN_mod_mul so that the result is always non-negative.
4174 Previously, it could be negative if one of the factors was negative;
4175 I don't think anyone really wanted that behaviour.
4178 *) Move BN_mod_... functions into new file crypto/bn/bn_mod.c
4179 (except for exponentiation, which stays in crypto/bn/bn_exp.c,
4180 and BN_mod_mul_reciprocal, which stays in crypto/bn/bn_recp.c)
4181 and add new functions:
4190 BN_mod_lshift1_quick
4194 These functions always generate non-negative results.
4196 BN_nnmod otherwise is like BN_mod (if BN_mod computes a remainder r
4197 such that |m| < r < 0, BN_nnmod will output rem + |m| instead).
4199 BN_mod_XXX_quick(r, a, [b,] m) generates the same result as
4200 BN_mod_XXX(r, a, [b,] m, ctx), but requires that a [and b]
4201 be reduced modulo m.
4202 [Lenka Fibikova <fibikova@exp-math.uni-essen.de>, Bodo Moeller]
4205 The following entry accidentily appeared in the CHANGES file
4206 distributed with OpenSSL 0.9.7. The modifications described in
4207 it do *not* apply to OpenSSL 0.9.7.
4209 *) Remove a few calls to bn_wexpand() in BN_sqr() (the one in there
4210 was actually never needed) and in BN_mul(). The removal in BN_mul()
4211 required a small change in bn_mul_part_recursive() and the addition
4212 of the functions bn_cmp_part_words(), bn_sub_part_words() and
4213 bn_add_part_words(), which do the same thing as bn_cmp_words(),
4214 bn_sub_words() and bn_add_words() except they take arrays with
4219 *) In 'openssl passwd', verify passwords read from the terminal
4220 unless the '-salt' option is used (which usually means that
4221 verification would just waste user's time since the resulting
4222 hash is going to be compared with some given password hash)
4223 or the new '-noverify' option is used.
4225 This is an incompatible change, but it does not affect
4226 non-interactive use of 'openssl passwd' (passwords on the command
4227 line, '-stdin' option, '-in ...' option) and thus should not
4231 *) Remove all references to RSAref, since there's no more need for it.
4234 *) Make DSO load along a path given through an environment variable
4235 (SHLIB_PATH) with shl_load().
4238 *) Constify the ENGINE code as a result of BIGNUM constification.
4239 Also constify the RSA code and most things related to it. In a
4240 few places, most notable in the depth of the ASN.1 code, ugly
4241 casts back to non-const were required (to be solved at a later
4245 *) Make it so the openssl application has all engines loaded by default.
4248 *) Constify the BIGNUM routines a little more.
4251 *) Add the following functions:
4253 ENGINE_load_cswift()
4255 ENGINE_load_atalla()
4257 ENGINE_load_builtin_engines()
4259 That way, an application can itself choose if external engines that
4260 are built-in in OpenSSL shall ever be used or not. The benefit is
4261 that applications won't have to be linked with libdl or other dso
4262 libraries unless it's really needed.
4264 Changed 'openssl engine' to load all engines on demand.
4265 Changed the engine header files to avoid the duplication of some
4266 declarations (they differed!).
4269 *) 'openssl engine' can now list capabilities.
4272 *) Better error reporting in 'openssl engine'.
4275 *) Never call load_dh_param(NULL) in s_server.
4278 *) Add engine application. It can currently list engines by name and
4279 identity, and test if they are actually available.
4282 *) Improve RPM specification file by forcing symbolic linking and making
4283 sure the installed documentation is also owned by root.root.
4284 [Damien Miller <djm@mindrot.org>]
4286 *) Give the OpenSSL applications more possibilities to make use of
4287 keys (public as well as private) handled by engines.
4290 *) Add OCSP code that comes from CertCo.
4293 *) Add VMS support for the Rijndael code.
4296 *) Added untested support for Nuron crypto accelerator.
4299 *) Add support for external cryptographic devices. This code was
4300 previously distributed separately as the "engine" branch.
4301 [Geoff Thorpe, Richard Levitte]
4303 *) Rework the filename-translation in the DSO code. It is now possible to
4304 have far greater control over how a "name" is turned into a filename
4305 depending on the operating environment and any oddities about the
4306 different shared library filenames on each system.
4309 *) Support threads on FreeBSD-elf in Configure.
4312 *) Fix for SHA1 assembly problem with MASM: it produces
4313 warnings about corrupt line number information when assembling
4314 with debugging information. This is caused by the overlapping
4316 [Bernd Matthes <mainbug@celocom.de>, Steve Henson]
4319 NCONF_get_number() has no error checking at all. As a replacement,
4320 NCONF_get_number_e() is defined (_e for "error checking") and is
4321 promoted strongly. The old NCONF_get_number is kept around for
4322 binary backward compatibility.
4323 Make it possible for methods to load from something other than a BIO,
4324 by providing a function pointer that is given a name instead of a BIO.
4325 For example, this could be used to load configuration data from an
4329 *) Fix for non blocking accept BIOs. Added new I/O special reason
4330 BIO_RR_ACCEPT to cover this case. Previously use of accept BIOs
4331 with non blocking I/O was not possible because no retry code was
4332 implemented. Also added new SSL code SSL_WANT_ACCEPT to cover
4336 *) Added the beginnings of Rijndael support.
4339 *) Fix for bug in DirectoryString mask setting. Add support for
4340 X509_NAME_print_ex() in 'req' and X509_print_ex() function
4341 to allow certificate printing to more controllable, additional
4342 'certopt' option to 'x509' to allow new printing options to be
4346 *) Clean old EAY MD5 hack from e_os.h.
4349 Changes between 0.9.6l and 0.9.6m [17 Mar 2004]
4351 *) Fix null-pointer assignment in do_change_cipher_spec() revealed
4352 by using the Codenomicon TLS Test Tool (CVE-2004-0079)
4353 [Joe Orton, Steve Henson]
4355 Changes between 0.9.6k and 0.9.6l [04 Nov 2003]
4357 *) Fix additional bug revealed by the NISCC test suite:
4359 Stop bug triggering large recursion when presented with
4360 certain ASN.1 tags (CVE-2003-0851)
4363 Changes between 0.9.6j and 0.9.6k [30 Sep 2003]
4365 *) Fix various bugs revealed by running the NISCC test suite:
4367 Stop out of bounds reads in the ASN1 code when presented with
4368 invalid tags (CVE-2003-0543 and CVE-2003-0544).
4370 If verify callback ignores invalid public key errors don't try to check
4371 certificate signature with the NULL public key.
4375 *) In ssl3_accept() (ssl/s3_srvr.c) only accept a client certificate
4376 if the server requested one: as stated in TLS 1.0 and SSL 3.0
4380 *) In ssl3_get_client_hello() (ssl/s3_srvr.c), tolerate additional
4381 extra data after the compression methods not only for TLS 1.0
4382 but also for SSL 3.0 (as required by the specification).
4383 [Bodo Moeller; problem pointed out by Matthias Loepfe]
4385 *) Change X509_certificate_type() to mark the key as exported/exportable
4386 when it's 512 *bits* long, not 512 bytes.
4389 Changes between 0.9.6i and 0.9.6j [10 Apr 2003]
4391 *) Countermeasure against the Klima-Pokorny-Rosa extension of
4392 Bleichbacher's attack on PKCS #1 v1.5 padding: treat
4393 a protocol version number mismatch like a decryption error
4394 in ssl3_get_client_key_exchange (ssl/s3_srvr.c).
4397 *) Turn on RSA blinding by default in the default implementation
4398 to avoid a timing attack. Applications that don't want it can call
4399 RSA_blinding_off() or use the new flag RSA_FLAG_NO_BLINDING.
4400 They would be ill-advised to do so in most cases.
4401 [Ben Laurie, Steve Henson, Geoff Thorpe, Bodo Moeller]
4403 *) Change RSA blinding code so that it works when the PRNG is not
4404 seeded (in this case, the secret RSA exponent is abused as
4405 an unpredictable seed -- if it is not unpredictable, there
4406 is no point in blinding anyway). Make RSA blinding thread-safe
4407 by remembering the creator's thread ID in rsa->blinding and
4408 having all other threads use local one-time blinding factors
4409 (this requires more computation than sharing rsa->blinding, but
4410 avoids excessive locking; and if an RSA object is not shared
4411 between threads, blinding will still be very fast).
4414 Changes between 0.9.6h and 0.9.6i [19 Feb 2003]
4416 *) In ssl3_get_record (ssl/s3_pkt.c), minimize information leaked
4417 via timing by performing a MAC computation even if incorrrect
4418 block cipher padding has been found. This is a countermeasure
4419 against active attacks where the attacker has to distinguish
4420 between bad padding and a MAC verification error. (CVE-2003-0078)
4422 [Bodo Moeller; problem pointed out by Brice Canvel (EPFL),
4423 Alain Hiltgen (UBS), Serge Vaudenay (EPFL), and
4424 Martin Vuagnoux (EPFL, Ilion)]
4426 Changes between 0.9.6g and 0.9.6h [5 Dec 2002]
4428 *) New function OPENSSL_cleanse(), which is used to cleanse a section of
4429 memory from it's contents. This is done with a counter that will
4430 place alternating values in each byte. This can be used to solve
4431 two issues: 1) the removal of calls to memset() by highly optimizing
4432 compilers, and 2) cleansing with other values than 0, since those can
4433 be read through on certain media, for example a swap space on disk.
4436 *) Bugfix: client side session caching did not work with external caching,
4437 because the session->cipher setting was not restored when reloading
4438 from the external cache. This problem was masked, when
4439 SSL_OP_NETSCAPE_REUSE_CIPHER_CHANGE_BUG (part of SSL_OP_ALL) was set.
4440 (Found by Steve Haslam <steve@araqnid.ddts.net>.)
4443 *) Fix client_certificate (ssl/s2_clnt.c): The permissible total
4444 length of the REQUEST-CERTIFICATE message is 18 .. 34, not 17 .. 33.
4445 [Zeev Lieber <zeev-l@yahoo.com>]
4447 *) Undo an undocumented change introduced in 0.9.6e which caused
4448 repeated calls to OpenSSL_add_all_ciphers() and
4449 OpenSSL_add_all_digests() to be ignored, even after calling
4453 *) Change the default configuration reader to deal with last line not
4454 being properly terminated.
4457 *) Change X509_NAME_cmp() so it applies the special rules on handling
4458 DN values that are of type PrintableString, as well as RDNs of type
4459 emailAddress where the value has the type ia5String.
4460 [stefank@valicert.com via Richard Levitte]
4462 *) Add a SSL_SESS_CACHE_NO_INTERNAL_STORE flag to take over half
4463 the job SSL_SESS_CACHE_NO_INTERNAL_LOOKUP was inconsistently
4464 doing, define a new flag (SSL_SESS_CACHE_NO_INTERNAL) to be
4465 the bitwise-OR of the two for use by the majority of applications
4466 wanting this behaviour, and update the docs. The documented
4467 behaviour and actual behaviour were inconsistent and had been
4468 changing anyway, so this is more a bug-fix than a behavioural
4470 [Geoff Thorpe, diagnosed by Nadav Har'El]
4472 *) Don't impose a 16-byte length minimum on session IDs in ssl/s3_clnt.c
4473 (the SSL 3.0 and TLS 1.0 specifications allow any length up to 32 bytes).
4476 *) Fix initialization code race conditions in
4477 SSLv23_method(), SSLv23_client_method(), SSLv23_server_method(),
4478 SSLv2_method(), SSLv2_client_method(), SSLv2_server_method(),
4479 SSLv3_method(), SSLv3_client_method(), SSLv3_server_method(),
4480 TLSv1_method(), TLSv1_client_method(), TLSv1_server_method(),
4481 ssl2_get_cipher_by_char(),
4482 ssl3_get_cipher_by_char().
4483 [Patrick McCormick <patrick@tellme.com>, Bodo Moeller]
4485 *) Reorder cleanup sequence in SSL_CTX_free(): only remove the ex_data after
4486 the cached sessions are flushed, as the remove_cb() might use ex_data
4487 contents. Bug found by Sam Varshavchik <mrsam@courier-mta.com>
4488 (see [openssl.org #212]).
4489 [Geoff Thorpe, Lutz Jaenicke]
4491 *) Fix typo in OBJ_txt2obj which incorrectly passed the content
4492 length, instead of the encoding length to d2i_ASN1_OBJECT.
4495 Changes between 0.9.6f and 0.9.6g [9 Aug 2002]
4497 *) [In 0.9.6g-engine release:]
4498 Fix crypto/engine/vendor_defns/cswift.h for WIN32 (use '_stdcall').
4499 [Lynn Gazis <lgazis@rainbow.com>]
4501 Changes between 0.9.6e and 0.9.6f [8 Aug 2002]
4503 *) Fix ASN1 checks. Check for overflow by comparing with LONG_MAX
4504 and get fix the header length calculation.
4505 [Florian Weimer <Weimer@CERT.Uni-Stuttgart.DE>,
4506 Alon Kantor <alonk@checkpoint.com> (and others),
4509 *) Use proper error handling instead of 'assertions' in buffer
4510 overflow checks added in 0.9.6e. This prevents DoS (the
4511 assertions could call abort()).
4512 [Arne Ansper <arne@ats.cyber.ee>, Bodo Moeller]
4514 Changes between 0.9.6d and 0.9.6e [30 Jul 2002]
4516 *) Add various sanity checks to asn1_get_length() to reject
4517 the ASN1 length bytes if they exceed sizeof(long), will appear
4518 negative or the content length exceeds the length of the
4520 [Steve Henson, Adi Stav <stav@mercury.co.il>, James Yonan <jim@ntlp.com>]
4522 *) Fix cipher selection routines: ciphers without encryption had no flags
4523 for the cipher strength set and where therefore not handled correctly
4524 by the selection routines (PR #130).
4527 *) Fix EVP_dsa_sha macro.
4531 SSL_OP_DONT_INSERT_EMPTY_FRAGMENTS
4532 for disabling the SSL 3.0/TLS 1.0 CBC vulnerability countermeasure
4533 that was added in OpenSSL 0.9.6d.
4535 As the countermeasure turned out to be incompatible with some
4536 broken SSL implementations, the new option is part of SSL_OP_ALL.
4537 SSL_OP_ALL is usually employed when compatibility with weird SSL
4538 implementations is desired (e.g. '-bugs' option to 's_client' and
4539 's_server'), so the new option is automatically set in many
4543 *) Changes in security patch:
4545 Changes marked "(CHATS)" were sponsored by the Defense Advanced
4546 Research Projects Agency (DARPA) and Air Force Research Laboratory,
4547 Air Force Materiel Command, USAF, under agreement number
4550 *) Add various sanity checks to asn1_get_length() to reject
4551 the ASN1 length bytes if they exceed sizeof(long), will appear
4552 negative or the content length exceeds the length of the
4553 supplied buffer. (CVE-2002-0659)
4554 [Steve Henson, Adi Stav <stav@mercury.co.il>, James Yonan <jim@ntlp.com>]
4556 *) Assertions for various potential buffer overflows, not known to
4558 [Ben Laurie (CHATS)]
4560 *) Various temporary buffers to hold ASCII versions of integers were
4561 too small for 64 bit platforms. (CVE-2002-0655)
4562 [Matthew Byng-Maddick <mbm@aldigital.co.uk> and Ben Laurie (CHATS)>
4564 *) Remote buffer overflow in SSL3 protocol - an attacker could
4565 supply an oversized session ID to a client. (CVE-2002-0656)
4566 [Ben Laurie (CHATS)]
4568 *) Remote buffer overflow in SSL2 protocol - an attacker could
4569 supply an oversized client master key. (CVE-2002-0656)
4570 [Ben Laurie (CHATS)]
4572 Changes between 0.9.6c and 0.9.6d [9 May 2002]
4574 *) Fix crypto/asn1/a_sign.c so that 'parameters' is omitted (not
4575 encoded as NULL) with id-dsa-with-sha1.
4576 [Nils Larsch <nla@trustcenter.de>; problem pointed out by Bodo Moeller]
4578 *) Check various X509_...() return values in apps/req.c.
4579 [Nils Larsch <nla@trustcenter.de>]
4581 *) Fix BASE64 decode (EVP_DecodeUpdate) for data with CR/LF ended lines:
4582 an end-of-file condition would erronously be flagged, when the CRLF
4583 was just at the end of a processed block. The bug was discovered when
4584 processing data through a buffering memory BIO handing the data to a
4585 BASE64-decoding BIO. Bug fund and patch submitted by Pavel Tsekov
4586 <ptsekov@syntrex.com> and Nedelcho Stanev.
4589 *) Implement a countermeasure against a vulnerability recently found
4590 in CBC ciphersuites in SSL 3.0/TLS 1.0: Send an empty fragment
4591 before application data chunks to avoid the use of known IVs
4592 with data potentially chosen by the attacker.
4595 *) Fix length checks in ssl3_get_client_hello().
4598 *) TLS/SSL library bugfix: use s->s3->in_read_app_data differently
4599 to prevent ssl3_read_internal() from incorrectly assuming that
4600 ssl3_read_bytes() found application data while handshake
4601 processing was enabled when in fact s->s3->in_read_app_data was
4602 merely automatically cleared during the initial handshake.
4603 [Bodo Moeller; problem pointed out by Arne Ansper <arne@ats.cyber.ee>]
4605 *) Fix object definitions for Private and Enterprise: they were not
4606 recognized in their shortname (=lowercase) representation. Extend
4607 obj_dat.pl to issue an error when using undefined keywords instead
4608 of silently ignoring the problem (Svenning Sorensen
4609 <sss@sss.dnsalias.net>).
4612 *) Fix DH_generate_parameters() so that it works for 'non-standard'
4613 generators, i.e. generators other than 2 and 5. (Previously, the
4614 code did not properly initialise the 'add' and 'rem' values to
4615 BN_generate_prime().)
4617 In the new general case, we do not insist that 'generator' is
4618 actually a primitive root: This requirement is rather pointless;
4619 a generator of the order-q subgroup is just as good, if not
4623 *) Map new X509 verification errors to alerts. Discovered and submitted by
4624 Tom Wu <tom@arcot.com>.
4627 *) Fix ssl3_pending() (ssl/s3_lib.c) to prevent SSL_pending() from
4628 returning non-zero before the data has been completely received
4629 when using non-blocking I/O.
4630 [Bodo Moeller; problem pointed out by John Hughes]
4632 *) Some of the ciphers missed the strength entry (SSL_LOW etc).
4633 [Ben Laurie, Lutz Jaenicke]
4635 *) Fix bug in SSL_clear(): bad sessions were not removed (found by
4636 Yoram Zahavi <YoramZ@gilian.com>).
4639 *) Add information about CygWin 1.3 and on, and preserve proper
4640 configuration for the versions before that.
4641 [Corinna Vinschen <vinschen@redhat.com> and Richard Levitte]
4643 *) Make removal from session cache (SSL_CTX_remove_session()) more robust:
4644 check whether we deal with a copy of a session and do not delete from
4645 the cache in this case. Problem reported by "Izhar Shoshani Levi"
4646 <izhar@checkpoint.com>.
4649 *) Do not store session data into the internal session cache, if it
4650 is never intended to be looked up (SSL_SESS_CACHE_NO_INTERNAL_LOOKUP
4651 flag is set). Proposed by Aslam <aslam@funk.com>.
4654 *) Have ASN1_BIT_STRING_set_bit() really clear a bit when the requested
4658 *) [In 0.9.6d-engine release:]
4659 Fix a crashbug and a logic bug in hwcrhk_load_pubkey().
4660 [Toomas Kiisk <vix@cyber.ee> via Richard Levitte]
4662 *) Add the configuration target linux-s390x.
4663 [Neale Ferguson <Neale.Ferguson@SoftwareAG-USA.com> via Richard Levitte]
4665 *) The earlier bugfix for the SSL3_ST_SW_HELLO_REQ_C case of
4666 ssl3_accept (ssl/s3_srvr.c) incorrectly used a local flag
4667 variable as an indication that a ClientHello message has been
4668 received. As the flag value will be lost between multiple
4669 invocations of ssl3_accept when using non-blocking I/O, the
4670 function may not be aware that a handshake has actually taken
4671 place, thus preventing a new session from being added to the
4674 To avoid this problem, we now set s->new_session to 2 instead of
4675 using a local variable.
4676 [Lutz Jaenicke, Bodo Moeller]
4678 *) Bugfix: Return -1 from ssl3_get_server_done (ssl3/s3_clnt.c)
4679 if the SSL_R_LENGTH_MISMATCH error is detected.
4680 [Geoff Thorpe, Bodo Moeller]
4682 *) New 'shared_ldflag' column in Configure platform table.
4685 *) Fix EVP_CIPHER_mode macro.
4686 ["Dan S. Camper" <dan@bti.net>]
4688 *) Fix ssl3_read_bytes (ssl/s3_pkt.c): To ignore messages of unknown
4689 type, we must throw them away by setting rr->length to 0.
4690 [D P Chang <dpc@qualys.com>]
4692 Changes between 0.9.6b and 0.9.6c [21 dec 2001]
4694 *) Fix BN_rand_range bug pointed out by Dominikus Scherkl
4695 <Dominikus.Scherkl@biodata.com>. (The previous implementation
4696 worked incorrectly for those cases where range = 10..._2 and
4697 3*range is two bits longer than range.)
4700 *) Only add signing time to PKCS7 structures if it is not already
4704 *) Fix crypto/objects/objects.h: "ld-ce" should be "id-ce",
4705 OBJ_ld_ce should be OBJ_id_ce.
4706 Also some ip-pda OIDs in crypto/objects/objects.txt were
4707 incorrect (cf. RFC 3039).
4708 [Matt Cooper, Frederic Giudicelli, Bodo Moeller]
4710 *) Release CRYPTO_LOCK_DYNLOCK when CRYPTO_destroy_dynlockid()
4711 returns early because it has nothing to do.
4712 [Andy Schneider <andy.schneider@bjss.co.uk>]
4714 *) [In 0.9.6c-engine release:]
4715 Fix mutex callback return values in crypto/engine/hw_ncipher.c.
4716 [Andy Schneider <andy.schneider@bjss.co.uk>]
4718 *) [In 0.9.6c-engine release:]
4719 Add support for Cryptographic Appliance's keyserver technology.
4720 (Use engine 'keyclient')
4721 [Cryptographic Appliances and Geoff Thorpe]
4723 *) Add a configuration entry for OS/390 Unix. The C compiler 'c89'
4724 is called via tools/c89.sh because arguments have to be
4725 rearranged (all '-L' options must appear before the first object
4727 [Richard Shapiro <rshapiro@abinitio.com>]
4729 *) [In 0.9.6c-engine release:]
4730 Add support for Broadcom crypto accelerator cards, backported
4732 [Broadcom, Nalin Dahyabhai <nalin@redhat.com>, Mark Cox]
4734 *) [In 0.9.6c-engine release:]
4735 Add support for SureWare crypto accelerator cards from
4736 Baltimore Technologies. (Use engine 'sureware')
4737 [Baltimore Technologies and Mark Cox]
4739 *) [In 0.9.6c-engine release:]
4740 Add support for crypto accelerator cards from Accelerated
4741 Encryption Processing, www.aep.ie. (Use engine 'aep')
4742 [AEP Inc. and Mark Cox]
4744 *) Add a configuration entry for gcc on UnixWare.
4745 [Gary Benson <gbenson@redhat.com>]
4747 *) Change ssl/s2_clnt.c and ssl/s2_srvr.c so that received handshake
4748 messages are stored in a single piece (fixed-length part and
4749 variable-length part combined) and fix various bugs found on the way.
4752 *) Disable caching in BIO_gethostbyname(), directly use gethostbyname()
4753 instead. BIO_gethostbyname() does not know what timeouts are
4754 appropriate, so entries would stay in cache even when they have
4756 [Bodo Moeller; problem pointed out by Rich Salz <rsalz@zolera.com>
4758 *) Change ssl23_get_client_hello (ssl/s23_srvr.c) behaviour when
4759 faced with a pathologically small ClientHello fragment that does
4760 not contain client_version: Instead of aborting with an error,
4761 simply choose the highest available protocol version (i.e.,
4762 TLS 1.0 unless it is disabled). In practice, ClientHello
4763 messages are never sent like this, but this change gives us
4764 strictly correct behaviour at least for TLS.
4767 *) Fix SSL handshake functions and SSL_clear() such that SSL_clear()
4768 never resets s->method to s->ctx->method when called from within
4769 one of the SSL handshake functions.
4770 [Bodo Moeller; problem pointed out by Niko Baric]
4772 *) In ssl3_get_client_hello (ssl/s3_srvr.c), generate a fatal alert
4773 (sent using the client's version number) if client_version is
4774 smaller than the protocol version in use. Also change
4775 ssl23_get_client_hello (ssl/s23_srvr.c) to select TLS 1.0 if
4776 the client demanded SSL 3.0 but only TLS 1.0 is enabled; then
4777 the client will at least see that alert.
4780 *) Fix ssl3_get_message (ssl/s3_both.c) to handle message fragmentation
4784 *) Avoid infinite loop in ssl3_get_message (ssl/s3_both.c) if a
4785 client receives HelloRequest while in a handshake.
4786 [Bodo Moeller; bug noticed by Andy Schneider <andy.schneider@bjss.co.uk>]
4788 *) Bugfix in ssl3_accept (ssl/s3_srvr.c): Case SSL3_ST_SW_HELLO_REQ_C
4789 should end in 'break', not 'goto end' which circuments various
4790 cleanups done in state SSL_ST_OK. But session related stuff
4791 must be disabled for SSL_ST_OK in the case that we just sent a
4794 Also avoid some overhead by not calling ssl_init_wbio_buffer()
4795 before just sending a HelloRequest.
4796 [Bodo Moeller, Eric Rescorla <ekr@rtfm.com>]
4798 *) Fix ssl/s3_enc.c, ssl/t1_enc.c and ssl/s3_pkt.c so that we don't
4799 reveal whether illegal block cipher padding was found or a MAC
4800 verification error occured. (Neither SSLerr() codes nor alerts
4801 are directly visible to potential attackers, but the information
4802 may leak via logfiles.)
4804 Similar changes are not required for the SSL 2.0 implementation
4805 because the number of padding bytes is sent in clear for SSL 2.0,
4806 and the extra bytes are just ignored. However ssl/s2_pkt.c
4807 failed to verify that the purported number of padding bytes is in
4811 *) Add OpenUNIX-8 support including shared libraries
4812 (Boyd Lynn Gerber <gerberb@zenez.com>).
4815 *) Improve RSA_padding_check_PKCS1_OAEP() check again to avoid
4816 'wristwatch attack' using huge encoding parameters (cf.
4817 James H. Manger's CRYPTO 2001 paper). Note that the
4818 RSA_PKCS1_OAEP_PADDING case of RSA_private_decrypt() does not use
4819 encoding parameters and hence was not vulnerable.
4822 *) BN_sqr() bug fix.
4823 [Ulf Möller, reported by Jim Ellis <jim.ellis@cavium.com>]
4825 *) Rabin-Miller test analyses assume uniformly distributed witnesses,
4826 so use BN_pseudo_rand_range() instead of using BN_pseudo_rand()
4827 followed by modular reduction.
4828 [Bodo Moeller; pointed out by Adam Young <AYoung1@NCSUS.JNJ.COM>]
4830 *) Add BN_pseudo_rand_range() with obvious functionality: BN_rand_range()
4831 equivalent based on BN_pseudo_rand() instead of BN_rand().
4834 *) s3_srvr.c: allow sending of large client certificate lists (> 16 kB).
4835 This function was broken, as the check for a new client hello message
4836 to handle SGC did not allow these large messages.
4837 (Tracked down by "Douglas E. Engert" <deengert@anl.gov>.)
4840 *) Add alert descriptions for TLSv1 to SSL_alert_desc_string[_long]().
4843 *) Fix buggy behaviour of BIO_get_num_renegotiates() and BIO_ctrl()
4844 for BIO_C_GET_WRITE_BUF_SIZE ("Stephen Hinton" <shinton@netopia.com>).
4847 *) Rework the configuration and shared library support for Tru64 Unix.
4848 The configuration part makes use of modern compiler features and
4849 still retains old compiler behavior for those that run older versions
4850 of the OS. The shared library support part includes a variant that
4851 uses the RPATH feature, and is available through the special
4852 configuration target "alpha-cc-rpath", which will never be selected
4854 [Tim Mooney <mooney@dogbert.cc.ndsu.NoDak.edu> via Richard Levitte]
4856 *) In ssl3_get_key_exchange (ssl/s3_clnt.c), call ssl3_get_message()
4857 with the same message size as in ssl3_get_certificate_request().
4858 Otherwise, if no ServerKeyExchange message occurs, CertificateRequest
4859 messages might inadvertently be reject as too long.
4860 [Petr Lampa <lampa@fee.vutbr.cz>]
4862 *) Enhanced support for IA-64 Unix platforms (well, Linux and HP-UX).
4865 *) Modified SSL library such that the verify_callback that has been set
4866 specificly for an SSL object with SSL_set_verify() is actually being
4867 used. Before the change, a verify_callback set with this function was
4868 ignored and the verify_callback() set in the SSL_CTX at the time of
4869 the call was used. New function X509_STORE_CTX_set_verify_cb() introduced
4870 to allow the necessary settings.
4873 *) Initialize static variable in crypto/dsa/dsa_lib.c and crypto/dh/dh_lib.c
4874 explicitly to NULL, as at least on Solaris 8 this seems not always to be
4875 done automatically (in contradiction to the requirements of the C
4876 standard). This made problems when used from OpenSSH.
4879 *) In OpenSSL 0.9.6a and 0.9.6b, crypto/dh/dh_key.c ignored
4880 dh->length and always used
4882 BN_rand_range(priv_key, dh->p).
4884 BN_rand_range() is not necessary for Diffie-Hellman, and this
4885 specific range makes Diffie-Hellman unnecessarily inefficient if
4886 dh->length (recommended exponent length) is much smaller than the
4887 length of dh->p. We could use BN_rand_range() if the order of
4888 the subgroup was stored in the DH structure, but we only have
4893 BN_rand(priv_key, l, ...)
4895 where 'l' is dh->length if this is defined, or BN_num_bits(dh->p)-1
4901 RSA_eay_public_encrypt
4902 RSA_eay_private_decrypt
4903 RSA_eay_private_encrypt (signing)
4904 RSA_eay_public_decrypt (signature verification)
4906 (default implementations for RSA_public_encrypt,
4907 RSA_private_decrypt, RSA_private_encrypt, RSA_public_decrypt),
4908 always reject numbers >= n.
4911 *) In crypto/rand/md_rand.c, use a new short-time lock CRYPTO_LOCK_RAND2
4912 to synchronize access to 'locking_thread'. This is necessary on
4913 systems where access to 'locking_thread' (an 'unsigned long'
4914 variable) is not atomic.
4917 *) In crypto/rand/md_rand.c, set 'locking_thread' to current thread's ID
4918 *before* setting the 'crypto_lock_rand' flag. The previous code had
4919 a race condition if 0 is a valid thread ID.
4920 [Travis Vitek <vitek@roguewave.com>]
4922 *) Add support for shared libraries under Irix.
4923 [Albert Chin-A-Young <china@thewrittenword.com>]
4925 *) Add configuration option to build on Linux on both big-endian and
4927 [Ralf Baechle <ralf@uni-koblenz.de>]
4929 *) Add the possibility to create shared libraries on HP-UX.
4932 Changes between 0.9.6a and 0.9.6b [9 Jul 2001]
4934 *) Change ssleay_rand_bytes (crypto/rand/md_rand.c)
4935 to avoid a SSLeay/OpenSSL PRNG weakness pointed out by
4936 Markku-Juhani O. Saarinen <markku-juhani.saarinen@nokia.com>:
4937 PRNG state recovery was possible based on the output of
4938 one PRNG request appropriately sized to gain knowledge on
4939 'md' followed by enough consecutive 1-byte PRNG requests
4940 to traverse all of 'state'.
4942 1. When updating 'md_local' (the current thread's copy of 'md')
4943 during PRNG output generation, hash all of the previous
4944 'md_local' value, not just the half used for PRNG output.
4946 2. Make the number of bytes from 'state' included into the hash
4947 independent from the number of PRNG bytes requested.
4949 The first measure alone would be sufficient to avoid
4950 Markku-Juhani's attack. (Actually it had never occurred
4951 to me that the half of 'md_local' used for chaining was the
4952 half from which PRNG output bytes were taken -- I had always
4953 assumed that the secret half would be used.) The second
4954 measure makes sure that additional data from 'state' is never
4955 mixed into 'md_local' in small portions; this heuristically
4956 further strengthens the PRNG.
4959 *) Fix crypto/bn/asm/mips3.s.
4962 *) When only the key is given to "enc", the IV is undefined. Print out
4963 an error message in this case.
4966 *) Handle special case when X509_NAME is empty in X509 printing routines.
4969 *) In dsa_do_verify (crypto/dsa/dsa_ossl.c), verify that r and s are
4970 positive and less than q.
4973 *) Don't change *pointer in CRYPTO_add_lock() is add_lock_callback is
4974 used: it isn't thread safe and the add_lock_callback should handle
4976 [Paul Rose <Paul.Rose@bridge.com>]
4978 *) Verify that incoming data obeys the block size in
4979 ssl3_enc (ssl/s3_enc.c) and tls1_enc (ssl/t1_enc.c).
4983 [Ulf Möller, Bodo Möller]
4985 *) The countermeasure against Bleichbacher's attack on PKCS #1 v1.5
4986 RSA encryption was accidentally removed in s3_srvr.c in OpenSSL 0.9.5
4987 when fixing the server behaviour for backwards-compatible 'client
4988 hello' messages. (Note that the attack is impractical against
4989 SSL 3.0 and TLS 1.0 anyway because length and version checking
4990 means that the probability of guessing a valid ciphertext is
4991 around 2^-40; see section 5 in Bleichenbacher's CRYPTO '98
4994 Before 0.9.5, the countermeasure (hide the error by generating a
4995 random 'decryption result') did not work properly because
4996 ERR_clear_error() was missing, meaning that SSL_get_error() would
4997 detect the supposedly ignored error.
4999 Both problems are now fixed.
5002 *) In crypto/bio/bf_buff.c, increase DEFAULT_BUFFER_SIZE to 4096
5003 (previously it was 1024).
5006 *) Fix for compatibility mode trust settings: ignore trust settings
5007 unless some valid trust or reject settings are present.
5010 *) Fix for blowfish EVP: its a variable length cipher.
5013 *) Fix various bugs related to DSA S/MIME verification. Handle missing
5014 parameters in DSA public key structures and return an error in the
5015 DSA routines if parameters are absent.
5018 *) In versions up to 0.9.6, RAND_file_name() resorted to file ".rnd"
5019 in the current directory if neither $RANDFILE nor $HOME was set.
5020 RAND_file_name() in 0.9.6a returned NULL in this case. This has
5021 caused some confusion to Windows users who haven't defined $HOME.
5022 Thus RAND_file_name() is changed again: e_os.h can define a
5023 DEFAULT_HOME, which will be used if $HOME is not set.
5024 For Windows, we use "C:"; on other platforms, we still require
5025 environment variables.
5027 *) Move 'if (!initialized) RAND_poll()' into regions protected by
5028 CRYPTO_LOCK_RAND. This is not strictly necessary, but avoids
5029 having multiple threads call RAND_poll() concurrently.
5032 *) In crypto/rand/md_rand.c, replace 'add_do_not_lock' flag by a
5033 combination of a flag and a thread ID variable.
5034 Otherwise while one thread is in ssleay_rand_bytes (which sets the
5035 flag), *other* threads can enter ssleay_add_bytes without obeying
5036 the CRYPTO_LOCK_RAND lock (and may even illegally release the lock
5037 that they do not hold after the first thread unsets add_do_not_lock).
5040 *) Change bctest again: '-x' expressions are not available in all
5044 Changes between 0.9.6 and 0.9.6a [5 Apr 2001]
5046 *) Fix a couple of memory leaks in PKCS7_dataDecode()
5047 [Steve Henson, reported by Heyun Zheng <hzheng@atdsprint.com>]
5049 *) Change Configure and Makefiles to provide EXE_EXT, which will contain
5050 the default extension for executables, if any. Also, make the perl
5051 scripts that use symlink() to test if it really exists and use "cp"
5052 if it doesn't. All this made OpenSSL compilable and installable in
5056 *) Fix for asn1_GetSequence() for indefinite length constructed data.
5057 If SEQUENCE is length is indefinite just set c->slen to the total
5058 amount of data available.
5059 [Steve Henson, reported by shige@FreeBSD.org]
5060 [This change does not apply to 0.9.7.]
5062 *) Change bctest to avoid here-documents inside command substitution
5063 (workaround for FreeBSD /bin/sh bug).
5064 For compatibility with Ultrix, avoid shell functions (introduced
5065 in the bctest version that searches along $PATH).
5068 *) Rename 'des_encrypt' to 'des_encrypt1'. This avoids the clashes
5069 with des_encrypt() defined on some operating systems, like Solaris
5073 *) Check the result of RSA-CRT (see D. Boneh, R. DeMillo, R. Lipton:
5074 On the Importance of Eliminating Errors in Cryptographic
5075 Computations, J. Cryptology 14 (2001) 2, 101-119,
5076 http://theory.stanford.edu/~dabo/papers/faults.ps.gz).
5079 *) MIPS assembler BIGNUM division bug fix.
5082 *) Disabled incorrect Alpha assembler code.
5085 *) Fix PKCS#7 decode routines so they correctly update the length
5086 after reading an EOC for the EXPLICIT tag.
5088 [This change does not apply to 0.9.7.]
5090 *) Fix bug in PKCS#12 key generation routines. This was triggered
5091 if a 3DES key was generated with a 0 initial byte. Include
5092 PKCS12_BROKEN_KEYGEN compilation option to retain the old
5093 (but broken) behaviour.
5096 *) Enhance bctest to search for a working bc along $PATH and print
5098 [Tim Rice <tim@multitalents.net> via Richard Levitte]
5100 *) Fix memory leaks in err.c: free err_data string if necessary;
5101 don't write to the wrong index in ERR_set_error_data.
5104 *) Implement ssl23_peek (analogous to ssl23_read), which previously
5108 *) Replace rdtsc with _emit statements for VC++ version 5.
5109 [Jeremy Cooper <jeremy@baymoo.org>]
5111 *) Make it possible to reuse SSLv2 sessions.
5114 *) In copy_email() check for >= 0 as a return value for
5115 X509_NAME_get_index_by_NID() since 0 is a valid index.
5116 [Steve Henson reported by Massimiliano Pala <madwolf@opensca.org>]
5118 *) Avoid coredump with unsupported or invalid public keys by checking if
5119 X509_get_pubkey() fails in PKCS7_verify(). Fix memory leak when
5120 PKCS7_verify() fails with non detached data.
5123 *) Don't use getenv in library functions when run as setuid/setgid.
5124 New function OPENSSL_issetugid().
5127 *) Avoid false positives in memory leak detection code (crypto/mem_dbg.c)
5128 due to incorrect handling of multi-threading:
5130 1. Fix timing glitch in the MemCheck_off() portion of CRYPTO_mem_ctrl().
5132 2. Fix logical glitch in is_MemCheck_on() aka CRYPTO_is_mem_check_on().
5134 3. Count how many times MemCheck_off() has been called so that
5135 nested use can be treated correctly. This also avoids
5136 inband-signalling in the previous code (which relied on the
5137 assumption that thread ID 0 is impossible).
5140 *) Add "-rand" option also to s_client and s_server.
5143 *) Fix CPU detection on Irix 6.x.
5144 [Kurt Hockenbury <khockenb@stevens-tech.edu> and
5145 "Bruce W. Forsberg" <bruce.forsberg@baesystems.com>]
5147 *) Fix X509_NAME bug which produced incorrect encoding if X509_NAME
5150 [This change does not apply to 0.9.7.]
5152 *) Use the cached encoding of an X509_NAME structure rather than
5153 copying it. This is apparently the reason for the libsafe "errors"
5154 but the code is actually correct.
5157 *) Add new function BN_rand_range(), and fix DSA_sign_setup() to prevent
5158 Bleichenbacher's DSA attack.
5159 Extend BN_[pseudo_]rand: As before, top=1 forces the highest two bits
5160 to be set and top=0 forces the highest bit to be set; top=-1 is new
5161 and leaves the highest bit random.
5162 [Ulf Moeller, Bodo Moeller]
5164 *) In the NCONF_...-based implementations for CONF_... queries
5165 (crypto/conf/conf_lib.c), if the input LHASH is NULL, avoid using
5166 a temporary CONF structure with the data component set to NULL
5167 (which gives segmentation faults in lh_retrieve).
5168 Instead, use NULL for the CONF pointer in CONF_get_string and
5169 CONF_get_number (which may use environment variables) and directly
5170 return NULL from CONF_get_section.
5173 *) Fix potential buffer overrun for EBCDIC.
5176 *) Tolerate nonRepudiation as being valid for S/MIME signing and certSign
5177 keyUsage if basicConstraints absent for a CA.
5180 *) Make SMIME_write_PKCS7() write mail header values with a format that
5181 is more generally accepted (no spaces before the semicolon), since
5182 some programs can't parse those values properly otherwise. Also make
5183 sure BIO's that break lines after each write do not create invalid
5187 *) Make the CRL encoding routines work with empty SEQUENCE OF. The
5188 macros previously used would not encode an empty SEQUENCE OF
5189 and break the signature.
5191 [This change does not apply to 0.9.7.]
5193 *) Zero the premaster secret after deriving the master secret in
5197 *) Add some EVP_add_digest_alias registrations (as found in
5198 OpenSSL_add_all_digests()) to SSL_library_init()
5199 aka OpenSSL_add_ssl_algorithms(). This provides improved
5200 compatibility with peers using X.509 certificates
5201 with unconventional AlgorithmIdentifier OIDs.
5204 *) Fix for Irix with NO_ASM.
5205 ["Bruce W. Forsberg" <bruce.forsberg@baesystems.com>]
5207 *) ./config script fixes.
5208 [Ulf Moeller, Richard Levitte]
5210 *) Fix 'openssl passwd -1'.
5213 *) Change PKCS12_key_gen_asc() so it can cope with non null
5214 terminated strings whose length is passed in the passlen
5215 parameter, for example from PEM callbacks. This was done
5216 by adding an extra length parameter to asc2uni().
5217 [Steve Henson, reported by <oddissey@samsung.co.kr>]
5219 *) Fix C code generated by 'openssl dsaparam -C': If a BN_bin2bn
5220 call failed, free the DSA structure.
5223 *) Fix to uni2asc() to cope with zero length Unicode strings.
5224 These are present in some PKCS#12 files.
5227 *) Increase s2->wbuf allocation by one byte in ssl2_new (ssl/s2_lib.c).
5228 Otherwise do_ssl_write (ssl/s2_pkt.c) will write beyond buffer limits
5229 when writing a 32767 byte record.
5230 [Bodo Moeller; problem reported by Eric Day <eday@concentric.net>]
5232 *) In RSA_eay_public_{en,ed}crypt and RSA_eay_mod_exp (rsa_eay.c),
5233 obtain lock CRYPTO_LOCK_RSA before setting rsa->_method_mod_{n,p,q}.
5235 (RSA objects have a reference count access to which is protected
5236 by CRYPTO_LOCK_RSA [see rsa_lib.c, s3_srvr.c, ssl_cert.c, ssl_rsa.c],
5237 so they are meant to be shared between threads.)
5238 [Bodo Moeller, Geoff Thorpe; original patch submitted by
5239 "Reddie, Steven" <Steven.Reddie@ca.com>]
5241 *) Fix a deadlock in CRYPTO_mem_leaks().
5244 *) Use better test patterns in bntest.
5247 *) rand_win.c fix for Borland C.
5250 *) BN_rshift bugfix for n == 0.
5253 *) Add a 'bctest' script that checks for some known 'bc' bugs
5254 so that 'make test' does not abort just because 'bc' is broken.
5257 *) Store verify_result within SSL_SESSION also for client side to
5258 avoid potential security hole. (Re-used sessions on the client side
5259 always resulted in verify_result==X509_V_OK, not using the original
5260 result of the server certificate verification.)
5263 *) Fix ssl3_pending: If the record in s->s3->rrec is not of type
5264 SSL3_RT_APPLICATION_DATA, return 0.
5265 Similarly, change ssl2_pending to return 0 if SSL_in_init(s) is true.
5269 Both ssl2_peek and ssl3_peek, which were totally broken in earlier
5270 releases, have been re-implemented by renaming the previous
5271 implementations of ssl2_read and ssl3_read to ssl2_read_internal
5272 and ssl3_read_internal, respectively, and adding 'peek' parameters
5273 to them. The new ssl[23]_{read,peek} functions are calls to
5274 ssl[23]_read_internal with the 'peek' flag set appropriately.
5275 A 'peek' parameter has also been added to ssl3_read_bytes, which
5276 does the actual work for ssl3_read_internal.
5279 *) Initialise "ex_data" member of RSA/DSA/DH structures prior to calling
5280 the method-specific "init()" handler. Also clean up ex_data after
5281 calling the method-specific "finish()" handler. Previously, this was
5282 happening the other way round.
5285 *) Increase BN_CTX_NUM (the number of BIGNUMs in a BN_CTX) to 16.
5286 The previous value, 12, was not always sufficient for BN_mod_exp().
5289 *) Make sure that shared libraries get the internal name engine with
5290 the full version number and not just 0. This should mark the
5291 shared libraries as not backward compatible. Of course, this should
5292 be changed again when we can guarantee backward binary compatibility.
5295 *) Fix typo in get_cert_by_subject() in by_dir.c
5296 [Jean-Marc Desperrier <jean-marc.desperrier@certplus.com>]
5298 *) Rework the system to generate shared libraries:
5300 - Make note of the expected extension for the shared libraries and
5301 if there is a need for symbolic links from for example libcrypto.so.0
5302 to libcrypto.so.0.9.7. There is extended info in Configure for
5305 - Make as few rebuilds of the shared libraries as possible.
5307 - Still avoid linking the OpenSSL programs with the shared libraries.
5309 - When installing, install the shared libraries separately from the
5313 *) Fix SSL_CTX_set_read_ahead macro to actually use its argument.
5315 Copy SSL_CTX's read_ahead flag to SSL object directly in SSL_new
5316 and not in SSL_clear because the latter is also used by the
5317 accept/connect functions; previously, the settings made by
5318 SSL_set_read_ahead would be lost during the handshake.
5319 [Bodo Moeller; problems reported by Anders Gertz <gertz@epact.se>]
5321 *) Correct util/mkdef.pl to be selective about disabled algorithms.
5322 Previously, it would create entries for disableed algorithms no
5326 *) Added several new manual pages for SSL_* function.
5329 Changes between 0.9.5a and 0.9.6 [24 Sep 2000]
5331 *) In ssl23_get_client_hello, generate an error message when faced
5332 with an initial SSL 3.0/TLS record that is too small to contain the
5333 first two bytes of the ClientHello message, i.e. client_version.
5334 (Note that this is a pathologic case that probably has never happened
5335 in real life.) The previous approach was to use the version number
5336 from the record header as a substitute; but our protocol choice
5337 should not depend on that one because it is not authenticated
5338 by the Finished messages.
5341 *) More robust randomness gathering functions for Windows.
5342 [Jeffrey Altman <jaltman@columbia.edu>]
5344 *) For compatibility reasons if the flag X509_V_FLAG_ISSUER_CHECK is
5345 not set then we don't setup the error code for issuer check errors
5346 to avoid possibly overwriting other errors which the callback does
5347 handle. If an application does set the flag then we assume it knows
5348 what it is doing and can handle the new informational codes
5352 *) Fix for a nasty bug in ASN1_TYPE handling. ASN1_TYPE is used for
5353 a general "ANY" type, as such it should be able to decode anything
5354 including tagged types. However it didn't check the class so it would
5355 wrongly interpret tagged types in the same way as their universal
5356 counterpart and unknown types were just rejected. Changed so that the
5357 tagged and unknown types are handled in the same way as a SEQUENCE:
5358 that is the encoding is stored intact. There is also a new type
5359 "V_ASN1_OTHER" which is used when the class is not universal, in this
5360 case we have no idea what the actual type is so we just lump them all
5364 *) On VMS, stdout may very well lead to a file that is written to
5365 in a record-oriented fashion. That means that every write() will
5366 write a separate record, which will be read separately by the
5367 programs trying to read from it. This can be very confusing.
5369 The solution is to put a BIO filter in the way that will buffer
5370 text until a linefeed is reached, and then write everything a
5371 line at a time, so every record written will be an actual line,
5372 not chunks of lines and not (usually doesn't happen, but I've
5373 seen it once) several lines in one record. BIO_f_linebuffer() is
5376 Currently, it's a VMS-only method, because that's where it has
5377 been tested well enough.
5380 *) Remove 'optimized' squaring variant in BN_mod_mul_montgomery,
5381 it can return incorrect results.
5382 (Note: The buggy variant was not enabled in OpenSSL 0.9.5a,
5383 but it was in 0.9.6-beta[12].)
5386 *) Disable the check for content being present when verifying detached
5387 signatures in pk7_smime.c. Some versions of Netscape (wrongly)
5388 include zero length content when signing messages.
5391 *) New BIO_shutdown_wr macro, which invokes the BIO_C_SHUTDOWN_WR
5392 BIO_ctrl (for BIO pairs).
5395 *) Add DSO method for VMS.
5398 *) Bug fix: Montgomery multiplication could produce results with the
5402 *) Add RPM specification openssl.spec and modify it to build three
5403 packages. The default package contains applications, application
5404 documentation and run-time libraries. The devel package contains
5405 include files, static libraries and function documentation. The
5406 doc package contains the contents of the doc directory. The original
5407 openssl.spec was provided by Damien Miller <djm@mindrot.org>.
5410 *) Add a large number of documentation files for many SSL routines.
5411 [Lutz Jaenicke <Lutz.Jaenicke@aet.TU-Cottbus.DE>]
5413 *) Add a configuration entry for Sony News 4.
5414 [NAKAJI Hiroyuki <nakaji@tutrp.tut.ac.jp>]
5416 *) Don't set the two most significant bits to one when generating a
5417 random number < q in the DSA library.
5420 *) New SSL API mode 'SSL_MODE_AUTO_RETRY'. This disables the default
5421 behaviour that SSL_read may result in SSL_ERROR_WANT_READ (even if
5422 the underlying transport is blocking) if a handshake took place.
5423 (The default behaviour is needed by applications such as s_client
5424 and s_server that use select() to determine when to use SSL_read;
5425 but for applications that know in advance when to expect data, it
5426 just makes things more complicated.)
5429 *) Add RAND_egd_bytes(), which gives control over the number of bytes read
5433 *) Add a few more EBCDIC conditionals that make `req' and `x509'
5434 work better on such systems.
5435 [Martin Kraemer <Martin.Kraemer@MchP.Siemens.De>]
5437 *) Add two demo programs for PKCS12_parse() and PKCS12_create().
5438 Update PKCS12_parse() so it copies the friendlyName and the
5439 keyid to the certificates aux info.
5442 *) Fix bug in PKCS7_verify() which caused an infinite loop
5443 if there was more than one signature.
5444 [Sven Uszpelkat <su@celocom.de>]
5446 *) Major change in util/mkdef.pl to include extra information
5447 about each symbol, as well as presentig variables as well
5448 as functions. This change means that there's n more need
5449 to rebuild the .num files when some algorithms are excluded.
5452 *) Allow the verify time to be set by an application,
5453 rather than always using the current time.
5456 *) Phase 2 verify code reorganisation. The certificate
5457 verify code now looks up an issuer certificate by a
5458 number of criteria: subject name, authority key id
5459 and key usage. It also verifies self signed certificates
5460 by the same criteria. The main comparison function is
5461 X509_check_issued() which performs these checks.
5463 Lot of changes were necessary in order to support this
5464 without completely rewriting the lookup code.
5466 Authority and subject key identifier are now cached.
5468 The LHASH 'certs' is X509_STORE has now been replaced
5469 by a STACK_OF(X509_OBJECT). This is mainly because an
5470 LHASH can't store or retrieve multiple objects with
5471 the same hash value.
5473 As a result various functions (which were all internal
5474 use only) have changed to handle the new X509_STORE
5475 structure. This will break anything that messed round
5476 with X509_STORE internally.
5478 The functions X509_STORE_add_cert() now checks for an
5479 exact match, rather than just subject name.
5481 The X509_STORE API doesn't directly support the retrieval
5482 of multiple certificates matching a given criteria, however
5483 this can be worked round by performing a lookup first
5484 (which will fill the cache with candidate certificates)
5485 and then examining the cache for matches. This is probably
5486 the best we can do without throwing out X509_LOOKUP
5487 entirely (maybe later...).
5489 The X509_VERIFY_CTX structure has been enhanced considerably.
5491 All certificate lookup operations now go via a get_issuer()
5492 callback. Although this currently uses an X509_STORE it
5493 can be replaced by custom lookups. This is a simple way
5494 to bypass the X509_STORE hackery necessary to make this
5495 work and makes it possible to use more efficient techniques
5496 in future. A very simple version which uses a simple
5497 STACK for its trusted certificate store is also provided
5498 using X509_STORE_CTX_trusted_stack().
5500 The verify_cb() and verify() callbacks now have equivalents
5501 in the X509_STORE_CTX structure.
5503 X509_STORE_CTX also has a 'flags' field which can be used
5504 to customise the verify behaviour.
5507 *) Add new PKCS#7 signing option PKCS7_NOSMIMECAP which
5508 excludes S/MIME capabilities.
5511 *) When a certificate request is read in keep a copy of the
5512 original encoding of the signed data and use it when outputing
5513 again. Signatures then use the original encoding rather than
5514 a decoded, encoded version which may cause problems if the
5515 request is improperly encoded.
5518 *) For consistency with other BIO_puts implementations, call
5519 buffer_write(b, ...) directly in buffer_puts instead of calling
5522 In BIO_puts, increment b->num_write as in BIO_write.
5523 [Peter.Sylvester@EdelWeb.fr]
5525 *) Fix BN_mul_word for the case where the word is 0. (We have to use
5526 BN_zero, we may not return a BIGNUM with an array consisting of
5530 *) Avoid calling abort() from within the library when problems are
5531 detected, except if preprocessor symbols have been defined
5532 (such as REF_CHECK, BN_DEBUG etc.).
5535 *) New openssl application 'rsautl'. This utility can be
5536 used for low level RSA operations. DER public key
5537 BIO/fp routines also added.
5540 *) New Configure entry and patches for compiling on QNX 4.
5541 [Andreas Schneider <andreas@ds3.etech.fh-hamburg.de>]
5543 *) A demo state-machine implementation was sponsored by
5544 Nuron (http://www.nuron.com/) and is now available in
5545 demos/state_machine.
5548 *) New options added to the 'dgst' utility for signature
5549 generation and verification.
5552 *) Unrecognized PKCS#7 content types are now handled via a
5553 catch all ASN1_TYPE structure. This allows unsupported
5554 types to be stored as a "blob" and an application can
5555 encode and decode it manually.
5558 *) Fix various signed/unsigned issues to make a_strex.c
5560 [Oscar Jacobsson <oscar.jacobsson@celocom.com>]
5562 *) ASN1 fixes. i2d_ASN1_OBJECT was not returning the correct
5563 length if passed a buffer. ASN1_INTEGER_to_BN failed
5564 if passed a NULL BN and its argument was negative.
5565 [Steve Henson, pointed out by Sven Heiberg <sven@tartu.cyber.ee>]
5567 *) Modification to PKCS#7 encoding routines to output definite
5568 length encoding. Since currently the whole structures are in
5569 memory there's not real point in using indefinite length
5570 constructed encoding. However if OpenSSL is compiled with
5571 the flag PKCS7_INDEFINITE_ENCODING the old form is used.
5574 *) Added BIO_vprintf() and BIO_vsnprintf().
5577 *) Added more prefixes to parse for in the the strings written
5578 through a logging bio, to cover all the levels that are available
5579 through syslog. The prefixes are now:
5581 PANIC, EMERG, EMR => LOG_EMERG
5582 ALERT, ALR => LOG_ALERT
5583 CRIT, CRI => LOG_CRIT
5584 ERROR, ERR => LOG_ERR
5585 WARNING, WARN, WAR => LOG_WARNING
5586 NOTICE, NOTE, NOT => LOG_NOTICE
5587 INFO, INF => LOG_INFO
5588 DEBUG, DBG => LOG_DEBUG
5590 and as before, if none of those prefixes are present at the
5591 beginning of the string, LOG_ERR is chosen.
5593 On Win32, the LOG_* levels are mapped according to this:
5595 LOG_EMERG, LOG_ALERT, LOG_CRIT, LOG_ERR => EVENTLOG_ERROR_TYPE
5596 LOG_WARNING => EVENTLOG_WARNING_TYPE
5597 LOG_NOTICE, LOG_INFO, LOG_DEBUG => EVENTLOG_INFORMATION_TYPE
5601 *) Made it possible to reconfigure with just the configuration
5602 argument "reconf" or "reconfigure". The command line arguments
5603 are stored in Makefile.ssl in the variable CONFIGURE_ARGS,
5604 and are retrieved from there when reconfiguring.
5608 [Assar Westerlund <assar@sics.se>, Richard Levitte]
5610 *) Add the arguments -CAfile and -CApath to the pkcs12 utility.
5613 *) The obj_dat.pl script was messing up the sorting of object
5614 names. The reason was that it compared the quoted version
5615 of strings as a result "OCSP" > "OCSP Signing" because
5616 " > SPACE. Changed script to store unquoted versions of
5617 names and add quotes on output. It was also omitting some
5618 names from the lookup table if they were given a default
5619 value (that is if SN is missing it is given the same
5620 value as LN and vice versa), these are now added on the
5621 grounds that if an object has a name we should be able to
5622 look it up. Finally added warning output when duplicate
5623 short or long names are found.
5626 *) Changes needed for Tandem NSK.
5627 [Scott Uroff <scott@xypro.com>]
5629 *) Fix SSL 2.0 rollback checking: Due to an off-by-one error in
5630 RSA_padding_check_SSLv23(), special padding was never detected
5631 and thus the SSL 3.0/TLS 1.0 countermeasure against protocol
5632 version rollback attacks was not effective.
5634 In s23_clnt.c, don't use special rollback-attack detection padding
5635 (RSA_SSLV23_PADDING) if SSL 2.0 is the only protocol enabled in the
5636 client; similarly, in s23_srvr.c, don't do the rollback check if
5637 SSL 2.0 is the only protocol enabled in the server.
5640 *) Make it possible to get hexdumps of unprintable data with 'openssl
5641 asn1parse'. By implication, the functions ASN1_parse_dump() and
5642 BIO_dump_indent() are added.
5645 *) New functions ASN1_STRING_print_ex() and X509_NAME_print_ex()
5646 these print out strings and name structures based on various
5647 flags including RFC2253 support and proper handling of
5648 multibyte characters. Added options to the 'x509' utility
5649 to allow the various flags to be set.
5652 *) Various fixes to use ASN1_TIME instead of ASN1_UTCTIME.
5653 Also change the functions X509_cmp_current_time() and
5654 X509_gmtime_adj() work with an ASN1_TIME structure,
5655 this will enable certificates using GeneralizedTime in validity
5656 dates to be checked.
5659 *) Make the NEG_PUBKEY_BUG code (which tolerates invalid
5660 negative public key encodings) on by default,
5661 NO_NEG_PUBKEY_BUG can be set to disable it.
5664 *) New function c2i_ASN1_OBJECT() which acts on ASN1_OBJECT
5665 content octets. An i2c_ASN1_OBJECT is unnecessary because
5666 the encoding can be trivially obtained from the structure.
5669 *) crypto/err.c locking bugfix: Use write locks (CRYPTO_w_[un]lock),
5670 not read locks (CRYPTO_r_[un]lock).
5673 *) A first attempt at creating official support for shared
5674 libraries through configuration. I've kept it so the
5675 default is static libraries only, and the OpenSSL programs
5676 are always statically linked for now, but there are
5677 preparations for dynamic linking in place.
5678 This has been tested on Linux and Tru64.
5681 *) Randomness polling function for Win9x, as described in:
5682 Peter Gutmann, Software Generation of Practically Strong
5686 *) Fix so PRNG is seeded in req if using an already existing
5690 *) New options to smime application. -inform and -outform
5691 allow alternative formats for the S/MIME message including
5692 PEM and DER. The -content option allows the content to be
5693 specified separately. This should allow things like Netscape
5694 form signing output easier to verify.
5697 *) Fix the ASN1 encoding of tags using the 'long form'.
5700 *) New ASN1 functions, i2c_* and c2i_* for INTEGER and BIT
5701 STRING types. These convert content octets to and from the
5702 underlying type. The actual tag and length octets are
5703 already assumed to have been read in and checked. These
5704 are needed because all other string types have virtually
5705 identical handling apart from the tag. By having versions
5706 of the ASN1 functions that just operate on content octets
5707 IMPLICIT tagging can be handled properly. It also allows
5708 the ASN1_ENUMERATED code to be cut down because ASN1_ENUMERATED
5709 and ASN1_INTEGER are identical apart from the tag.
5712 *) Change the handling of OID objects as follows:
5714 - New object identifiers are inserted in objects.txt, following
5715 the syntax given in objects.README.
5716 - objects.pl is used to process obj_mac.num and create a new
5718 - obj_dat.pl is used to create a new obj_dat.h, using the data in
5721 This is currently kind of a hack, and the perl code in objects.pl
5722 isn't very elegant, but it works as I intended. The simplest way
5723 to check that it worked correctly is to look in obj_dat.h and
5724 check the array nid_objs and make sure the objects haven't moved
5725 around (this is important!). Additions are OK, as well as
5726 consistent name changes.
5729 *) Add BSD-style MD5-based passwords to 'openssl passwd' (option '-1').
5732 *) Addition of the command line parameter '-rand file' to 'openssl req'.
5733 The given file adds to whatever has already been seeded into the
5734 random pool through the RANDFILE configuration file option or
5735 environment variable, or the default random state file.
5738 *) mkstack.pl now sorts each macro group into lexical order.
5739 Previously the output order depended on the order the files
5740 appeared in the directory, resulting in needless rewriting
5744 *) Patches to make OpenSSL compile under Win32 again. Mostly
5745 work arounds for the VC++ problem that it treats func() as
5746 func(void). Also stripped out the parts of mkdef.pl that
5747 added extra typesafe functions: these no longer exist.
5750 *) Reorganisation of the stack code. The macros are now all
5751 collected in safestack.h . Each macro is defined in terms of
5752 a "stack macro" of the form SKM_<name>(type, a, b). The
5753 DEBUG_SAFESTACK is now handled in terms of function casts,
5754 this has the advantage of retaining type safety without the
5755 use of additional functions. If DEBUG_SAFESTACK is not defined
5756 then the non typesafe macros are used instead. Also modified the
5757 mkstack.pl script to handle the new form. Needs testing to see
5758 if which (if any) compilers it chokes and maybe make DEBUG_SAFESTACK
5759 the default if no major problems. Similar behaviour for ASN1_SET_OF
5760 and PKCS12_STACK_OF.
5763 *) When some versions of IIS use the 'NET' form of private key the
5764 key derivation algorithm is different. Normally MD5(password) is
5765 used as a 128 bit RC4 key. In the modified case
5766 MD5(MD5(password) + "SGCKEYSALT") is used insted. Added some
5767 new functions i2d_RSA_NET(), d2i_RSA_NET() etc which are the same
5768 as the old Netscape_RSA functions except they have an additional
5769 'sgckey' parameter which uses the modified algorithm. Also added
5770 an -sgckey command line option to the rsa utility. Thanks to
5771 Adrian Peck <bertie@ncipher.com> for posting details of the modified
5772 algorithm to openssl-dev.
5775 *) The evp_local.h macros were using 'c.##kname' which resulted in
5776 invalid expansion on some systems (SCO 5.0.5 for example).
5777 Corrected to 'c.kname'.
5778 [Phillip Porch <root@theporch.com>]
5780 *) New X509_get1_email() and X509_REQ_get1_email() functions that return
5781 a STACK of email addresses from a certificate or request, these look
5782 in the subject name and the subject alternative name extensions and
5783 omit any duplicate addresses.
5786 *) Re-implement BN_mod_exp2_mont using independent (and larger) windows.
5787 This makes DSA verification about 2 % faster.
5790 *) Increase maximum window size in BN_mod_exp_... to 6 bits instead of 5
5791 (meaning that now 2^5 values will be precomputed, which is only 4 KB
5792 plus overhead for 1024 bit moduli).
5793 This makes exponentiations about 0.5 % faster for 1024 bit
5794 exponents (as measured by "openssl speed rsa2048").
5797 *) Rename memory handling macros to avoid conflicts with other
5799 Malloc => OPENSSL_malloc
5800 Malloc_locked => OPENSSL_malloc_locked
5801 Realloc => OPENSSL_realloc
5802 Free => OPENSSL_free
5805 *) New function BN_mod_exp_mont_word for small bases (roughly 15%
5806 faster than BN_mod_exp_mont, i.e. 7% for a full DH exchange).
5809 *) CygWin32 support.
5810 [John Jarvie <jjarvie@newsguy.com>]
5812 *) The type-safe stack code has been rejigged. It is now only compiled
5813 in when OpenSSL is configured with the DEBUG_SAFESTACK option and
5814 by default all type-specific stack functions are "#define"d back to
5815 standard stack functions. This results in more streamlined output
5816 but retains the type-safety checking possibilities of the original
5820 *) The STACK code has been cleaned up, and certain type declarations
5821 that didn't make a lot of sense have been brought in line. This has
5822 also involved a cleanup of sorts in safestack.h to more correctly
5823 map type-safe stack functions onto their plain stack counterparts.
5824 This work has also resulted in a variety of "const"ifications of
5825 lots of the code, especially "_cmp" operations which should normally
5826 be prototyped with "const" parameters anyway.
5829 *) When generating bytes for the first time in md_rand.c, 'stir the pool'
5830 by seeding with STATE_SIZE dummy bytes (with zero entropy count).
5831 (The PRNG state consists of two parts, the large pool 'state' and 'md',
5832 where all of 'md' is used each time the PRNG is used, but 'state'
5833 is used only indexed by a cyclic counter. As entropy may not be
5834 well distributed from the beginning, 'md' is important as a
5835 chaining variable. However, the output function chains only half
5836 of 'md', i.e. 80 bits. ssleay_rand_add, on the other hand, chains
5837 all of 'md', and seeding with STATE_SIZE dummy bytes will result
5838 in all of 'state' being rewritten, with the new values depending
5839 on virtually all of 'md'. This overcomes the 80 bit limitation.)
5842 *) In ssl/s2_clnt.c and ssl/s3_clnt.c, call ERR_clear_error() when
5843 the handshake is continued after ssl_verify_cert_chain();
5844 otherwise, if SSL_VERIFY_NONE is set, remaining error codes
5845 can lead to 'unexplainable' connection aborts later.
5846 [Bodo Moeller; problem tracked down by Lutz Jaenicke]
5848 *) Major EVP API cipher revision.
5849 Add hooks for extra EVP features. This allows various cipher
5850 parameters to be set in the EVP interface. Support added for variable
5851 key length ciphers via the EVP_CIPHER_CTX_set_key_length() function and
5852 setting of RC2 and RC5 parameters.
5854 Modify EVP_OpenInit() and EVP_SealInit() to cope with variable key length
5857 Remove lots of duplicated code from the EVP library. For example *every*
5858 cipher init() function handles the 'iv' in the same way according to the
5859 cipher mode. They also all do nothing if the 'key' parameter is NULL and
5860 for CFB and OFB modes they zero ctx->num.
5862 New functionality allows removal of S/MIME code RC2 hack.
5864 Most of the routines have the same form and so can be declared in terms
5867 By shifting this to the top level EVP_CipherInit() it can be removed from
5868 all individual ciphers. If the cipher wants to handle IVs or keys
5869 differently it can set the EVP_CIPH_CUSTOM_IV or EVP_CIPH_ALWAYS_CALL_INIT
5872 Change lots of functions like EVP_EncryptUpdate() to now return a
5873 value: although software versions of the algorithms cannot fail
5874 any installed hardware versions can.
5877 *) Implement SSL_OP_TLS_ROLLBACK_BUG: In ssl3_get_client_key_exchange, if
5878 this option is set, tolerate broken clients that send the negotiated
5879 protocol version number instead of the requested protocol version
5883 *) Call dh_tmp_cb (set by ..._TMP_DH_CB) with correct 'is_export' flag;
5884 i.e. non-zero for export ciphersuites, zero otherwise.
5885 Previous versions had this flag inverted, inconsistent with
5886 rsa_tmp_cb (..._TMP_RSA_CB).
5887 [Bodo Moeller; problem reported by Amit Chopra]
5889 *) Add missing DSA library text string. Work around for some IIS
5890 key files with invalid SEQUENCE encoding.
5893 *) Add a document (doc/standards.txt) that list all kinds of standards
5894 and so on that are implemented in OpenSSL.
5897 *) Enhance c_rehash script. Old version would mishandle certificates
5898 with the same subject name hash and wouldn't handle CRLs at all.
5899 Added -fingerprint option to crl utility, to support new c_rehash
5903 *) Eliminate non-ANSI declarations in crypto.h and stack.h.
5906 *) Fix for SSL server purpose checking. Server checking was
5907 rejecting certificates which had extended key usage present
5908 but no ssl client purpose.
5909 [Steve Henson, reported by Rene Grosser <grosser@hisolutions.com>]
5911 *) Make PKCS#12 code work with no password. The PKCS#12 spec
5912 is a little unclear about how a blank password is handled.
5913 Since the password in encoded as a BMPString with terminating
5914 double NULL a zero length password would end up as just the
5915 double NULL. However no password at all is different and is
5916 handled differently in the PKCS#12 key generation code. NS
5917 treats a blank password as zero length. MSIE treats it as no
5918 password on export: but it will try both on import. We now do
5919 the same: PKCS12_parse() tries zero length and no password if
5920 the password is set to "" or NULL (NULL is now a valid password:
5921 it wasn't before) as does the pkcs12 application.
5924 *) Bugfixes in apps/x509.c: Avoid a memory leak; and don't use
5925 perror when PEM_read_bio_X509_REQ fails, the error message must
5926 be obtained from the error queue.
5929 *) Avoid 'thread_hash' memory leak in crypto/err/err.c by freeing
5930 it in ERR_remove_state if appropriate, and change ERR_get_state
5931 accordingly to avoid race conditions (this is necessary because
5932 thread_hash is no longer constant once set).
5935 *) Bugfix for linux-elf makefile.one.
5938 *) RSA_get_default_method() will now cause a default
5939 RSA_METHOD to be chosen if one doesn't exist already.
5940 Previously this was only set during a call to RSA_new()
5941 or RSA_new_method(NULL) meaning it was possible for
5942 RSA_get_default_method() to return NULL.
5945 *) Added native name translation to the existing DSO code
5946 that will convert (if the flag to do so is set) filenames
5947 that are sufficiently small and have no path information
5948 into a canonical native form. Eg. "blah" converted to
5949 "libblah.so" or "blah.dll" etc.
5952 *) New function ERR_error_string_n(e, buf, len) which is like
5953 ERR_error_string(e, buf), but writes at most 'len' bytes
5954 including the 0 terminator. For ERR_error_string_n, 'buf'
5956 [Damien Miller <djm@mindrot.org>, Bodo Moeller]
5958 *) CONF library reworked to become more general. A new CONF
5959 configuration file reader "class" is implemented as well as a
5960 new functions (NCONF_*, for "New CONF") to handle it. The now
5961 old CONF_* functions are still there, but are reimplemented to
5962 work in terms of the new functions. Also, a set of functions
5963 to handle the internal storage of the configuration data is
5964 provided to make it easier to write new configuration file
5965 reader "classes" (I can definitely see something reading a
5966 configuration file in XML format, for example), called _CONF_*,
5967 or "the configuration storage API"...
5969 The new configuration file reading functions are:
5971 NCONF_new, NCONF_free, NCONF_load, NCONF_load_fp, NCONF_load_bio,
5972 NCONF_get_section, NCONF_get_string, NCONF_get_numbre
5974 NCONF_default, NCONF_WIN32
5976 NCONF_dump_fp, NCONF_dump_bio
5978 NCONF_default and NCONF_WIN32 are method (or "class") choosers,
5979 NCONF_new creates a new CONF object. This works in the same way
5980 as other interfaces in OpenSSL, like the BIO interface.
5981 NCONF_dump_* dump the internal storage of the configuration file,
5982 which is useful for debugging. All other functions take the same
5983 arguments as the old CONF_* functions wth the exception of the
5984 first that must be a `CONF *' instead of a `LHASH *'.
5986 To make it easer to use the new classes with the old CONF_* functions,
5987 the function CONF_set_default_method is provided.
5990 *) Add '-tls1' option to 'openssl ciphers', which was already
5991 mentioned in the documentation but had not been implemented.
5992 (This option is not yet really useful because even the additional
5993 experimental TLS 1.0 ciphers are currently treated as SSL 3.0 ciphers.)
5996 *) Initial DSO code added into libcrypto for letting OpenSSL (and
5997 OpenSSL-based applications) load shared libraries and bind to
5998 them in a portable way.
5999 [Geoff Thorpe, with contributions from Richard Levitte]
6001 Changes between 0.9.5 and 0.9.5a [1 Apr 2000]
6003 *) Make sure _lrotl and _lrotr are only used with MSVC.
6005 *) Use lock CRYPTO_LOCK_RAND correctly in ssleay_rand_status
6006 (the default implementation of RAND_status).
6008 *) Rename openssl x509 option '-crlext', which was added in 0.9.5,
6009 to '-clrext' (= clear extensions), as intended and documented.
6010 [Bodo Moeller; inconsistency pointed out by Michael Attili
6013 *) Fix for HMAC. It wasn't zeroing the rest of the block if the key length
6014 was larger than the MD block size.
6015 [Steve Henson, pointed out by Yost William <YostW@tce.com>]
6017 *) Modernise PKCS12_parse() so it uses STACK_OF(X509) for its ca argument
6018 fix a leak when the ca argument was passed as NULL. Stop X509_PUBKEY_set()
6019 using the passed key: if the passed key was a private key the result
6020 of X509_print(), for example, would be to print out all the private key
6024 *) des_quad_cksum() byte order bug fix.
6025 [Ulf Möller, using the problem description in krb4-0.9.7, where
6026 the solution is attributed to Derrick J Brashear <shadow@DEMENTIA.ORG>]
6028 *) Fix so V_ASN1_APP_CHOOSE works again: however its use is strongly
6030 [Steve Henson, pointed out by Brian Korver <briank@cs.stanford.edu>]
6032 *) For easily testing in shell scripts whether some command
6033 'openssl XXX' exists, the new pseudo-command 'openssl no-XXX'
6034 returns with exit code 0 iff no command of the given name is available.
6035 'no-XXX' is printed in this case, 'XXX' otherwise. In both cases,
6036 the output goes to stdout and nothing is printed to stderr.
6037 Additional arguments are always ignored.
6039 Since for each cipher there is a command of the same name,
6040 the 'no-cipher' compilation switches can be tested this way.
6042 ('openssl no-XXX' is not able to detect pseudo-commands such
6043 as 'quit', 'list-XXX-commands', or 'no-XXX' itself.)
6046 *) Update test suite so that 'make test' succeeds in 'no-rsa' configuration.
6049 *) For SSL_[CTX_]set_tmp_dh, don't create a DH key if SSL_OP_SINGLE_DH_USE
6050 is set; it will be thrown away anyway because each handshake creates
6052 ssl_cert_dup, which is used by SSL_new, now copies DH keys in addition
6053 to parameters -- in previous versions (since OpenSSL 0.9.3) the
6054 'default key' from SSL_CTX_set_tmp_dh would always be lost, meanining
6055 you effectivly got SSL_OP_SINGLE_DH_USE when using this macro.
6058 *) New s_client option -ign_eof: EOF at stdin is ignored, and
6059 'Q' and 'R' lose their special meanings (quit/renegotiate).
6060 This is part of what -quiet does; unlike -quiet, -ign_eof
6061 does not suppress any output.
6064 *) Add compatibility options to the purpose and trust code. The
6065 purpose X509_PURPOSE_ANY is "any purpose" which automatically
6066 accepts a certificate or CA, this was the previous behaviour,
6067 with all the associated security issues.
6069 X509_TRUST_COMPAT is the old trust behaviour: only and
6070 automatically trust self signed roots in certificate store. A
6071 new trust setting X509_TRUST_DEFAULT is used to specify that
6072 a purpose has no associated trust setting and it should instead
6073 use the value in the default purpose.
6076 *) Fix the PKCS#8 DSA private key code so it decodes keys again
6077 and fix a memory leak.
6080 *) In util/mkerr.pl (which implements 'make errors'), preserve
6081 reason strings from the previous version of the .c file, as
6082 the default to have only downcase letters (and digits) in
6083 automatically generated reasons codes is not always appropriate.
6086 *) In ERR_load_ERR_strings(), build an ERR_LIB_SYS error reason table
6087 using strerror. Previously, ERR_reason_error_string() returned
6088 library names as reason strings for SYSerr; but SYSerr is a special
6089 case where small numbers are errno values, not library numbers.
6092 *) Add '-dsaparam' option to 'openssl dhparam' application. This
6093 converts DSA parameters into DH parameters. (When creating parameters,
6094 DSA_generate_parameters is used.)
6097 *) Include 'length' (recommended exponent length) in C code generated
6098 by 'openssl dhparam -C'.
6101 *) The second argument to set_label in perlasm was already being used
6102 so couldn't be used as a "file scope" flag. Moved to third argument
6106 *) In PEM_ASN1_write_bio and some other functions, use RAND_pseudo_bytes
6107 instead of RAND_bytes for encryption IVs and salts.
6110 *) Include RAND_status() into RAND_METHOD instead of implementing
6111 it only for md_rand.c Otherwise replacing the PRNG by calling
6112 RAND_set_rand_method would be impossible.
6115 *) Don't let DSA_generate_key() enter an infinite loop if the random
6116 number generation fails.
6119 *) New 'rand' application for creating pseudo-random output.
6122 *) Added configuration support for Linux/IA64
6123 [Rolf Haberrecker <rolf@suse.de>]
6125 *) Assembler module support for Mingw32.
6128 *) Shared library support for HPUX (in shlib/).
6129 [Lutz Jaenicke <Lutz.Jaenicke@aet.TU-Cottbus.DE> and Anonymous]
6131 *) Shared library support for Solaris gcc.
6132 [Lutz Behnke <behnke@trustcenter.de>]
6134 Changes between 0.9.4 and 0.9.5 [28 Feb 2000]
6136 *) PKCS7_encrypt() was adding text MIME headers twice because they
6137 were added manually and by SMIME_crlf_copy().
6140 *) In bntest.c don't call BN_rand with zero bits argument.
6141 [Steve Henson, pointed out by Andrew W. Gray <agray@iconsinc.com>]
6143 *) BN_mul bugfix: In bn_mul_part_recursion() only the a>a[n] && b>b[n]
6144 case was implemented. This caused BN_div_recp() to fail occasionally.
6147 *) Add an optional second argument to the set_label() in the perl
6148 assembly language builder. If this argument exists and is set
6149 to 1 it signals that the assembler should use a symbol whose
6150 scope is the entire file, not just the current function. This
6151 is needed with MASM which uses the format label:: for this scope.
6152 [Steve Henson, pointed out by Peter Runestig <peter@runestig.com>]
6154 *) Change the ASN1 types so they are typedefs by default. Before
6155 almost all types were #define'd to ASN1_STRING which was causing
6156 STACK_OF() problems: you couldn't declare STACK_OF(ASN1_UTF8STRING)
6160 *) Change names of new functions to the new get1/get0 naming
6161 convention: After 'get1', the caller owns a reference count
6162 and has to call ..._free; 'get0' returns a pointer to some
6163 data structure without incrementing reference counters.
6164 (Some of the existing 'get' functions increment a reference
6165 counter, some don't.)
6166 Similarly, 'set1' and 'add1' functions increase reference
6167 counters or duplicate objects.
6170 *) Allow for the possibility of temp RSA key generation failure:
6171 the code used to assume it always worked and crashed on failure.
6174 *) Fix potential buffer overrun problem in BIO_printf().
6175 [Ulf Möller, using public domain code by Patrick Powell; problem
6176 pointed out by David Sacerdote <das33@cornell.edu>]
6178 *) Support EGD <http://www.lothar.com/tech/crypto/>. New functions
6179 RAND_egd() and RAND_status(). In the command line application,
6180 the EGD socket can be specified like a seed file using RANDFILE
6184 *) Allow the string CERTIFICATE to be tolerated in PKCS#7 structures.
6185 Some CAs (e.g. Verisign) distribute certificates in this form.
6188 *) Remove the SSL_ALLOW_ADH compile option and set the default cipher
6189 list to exclude them. This means that no special compilation option
6190 is needed to use anonymous DH: it just needs to be included in the
6194 *) Change the EVP_MD_CTX_type macro so its meaning consistent with
6195 EVP_MD_type. The old functionality is available in a new macro called
6196 EVP_MD_md(). Change code that uses it and update docs.
6199 *) ..._ctrl functions now have corresponding ..._callback_ctrl functions
6200 where the 'void *' argument is replaced by a function pointer argument.
6201 Previously 'void *' was abused to point to functions, which works on
6202 many platforms, but is not correct. As these functions are usually
6203 called by macros defined in OpenSSL header files, most source code
6204 should work without changes.
6207 *) <openssl/opensslconf.h> (which is created by Configure) now contains
6208 sections with information on -D... compiler switches used for
6209 compiling the library so that applications can see them. To enable
6210 one of these sections, a pre-processor symbol OPENSSL_..._DEFINES
6211 must be defined. E.g.,
6212 #define OPENSSL_ALGORITHM_DEFINES
6213 #include <openssl/opensslconf.h>
6214 defines all pertinent NO_<algo> symbols, such as NO_IDEA, NO_RSA, etc.
6215 [Richard Levitte, Ulf and Bodo Möller]
6217 *) Bugfix: Tolerate fragmentation and interleaving in the SSL 3/TLS
6221 *) Change the 'other' type in certificate aux info to a STACK_OF
6222 X509_ALGOR. Although not an AlgorithmIdentifier as such it has
6223 the required ASN1 format: arbitrary types determined by an OID.
6226 *) Add some PEM_write_X509_REQ_NEW() functions and a command line
6227 argument to 'req'. This is not because the function is newer or
6228 better than others it just uses the work 'NEW' in the certificate
6229 request header lines. Some software needs this.
6232 *) Reorganise password command line arguments: now passwords can be
6233 obtained from various sources. Delete the PEM_cb function and make
6234 it the default behaviour: i.e. if the callback is NULL and the
6235 usrdata argument is not NULL interpret it as a null terminated pass
6236 phrase. If usrdata and the callback are NULL then the pass phrase
6237 is prompted for as usual.
6240 *) Add support for the Compaq Atalla crypto accelerator. If it is installed,
6241 the support is automatically enabled. The resulting binaries will
6242 autodetect the card and use it if present.
6243 [Ben Laurie and Compaq Inc.]
6245 *) Work around for Netscape hang bug. This sends certificate request
6246 and server done in one record. Since this is perfectly legal in the
6247 SSL/TLS protocol it isn't a "bug" option and is on by default. See
6248 the bugs/SSLv3 entry for more info.
6251 *) HP-UX tune-up: new unified configs, HP C compiler bug workaround.
6254 *) Add -rand argument to smime and pkcs12 applications and read/write
6258 *) New 'passwd' tool for crypt(3) and apr1 password hashes.
6261 *) Add command line password options to the remaining applications.
6264 *) Bug fix for BN_div_recp() for numerators with an even number of
6268 *) More tests in bntest.c, and changed test_bn output.
6271 *) ./config recognizes MacOS X now.
6274 *) Bug fix for BN_div() when the first words of num and divsor are
6275 equal (it gave wrong results if (rem=(n1-q*d0)&BN_MASK2) < d0).
6278 *) Add support for various broken PKCS#8 formats, and command line
6279 options to produce them.
6282 *) New functions BN_CTX_start(), BN_CTX_get() and BT_CTX_end() to
6283 get temporary BIGNUMs from a BN_CTX.
6286 *) Correct return values in BN_mod_exp_mont() and BN_mod_exp2_mont()
6290 *) Change the SSLeay_add_all_*() functions to OpenSSL_add_all_*() and
6291 include a #define from the old name to the new. The original intent
6292 was that statically linked binaries could for example just call
6293 SSLeay_add_all_ciphers() to just add ciphers to the table and not
6294 link with digests. This never worked becayse SSLeay_add_all_digests()
6295 and SSLeay_add_all_ciphers() were in the same source file so calling
6296 one would link with the other. They are now in separate source files.
6299 *) Add a new -notext option to 'ca' and a -pubkey option to 'spkac'.
6302 *) Use a less unusual form of the Miller-Rabin primality test (it used
6303 a binary algorithm for exponentiation integrated into the Miller-Rabin
6304 loop, our standard modexp algorithms are faster).
6307 *) Support for the EBCDIC character set completed.
6308 [Martin Kraemer <Martin.Kraemer@Mch.SNI.De>]
6310 *) Source code cleanups: use const where appropriate, eliminate casts,
6311 use void * instead of char * in lhash.
6314 *) Bugfix: ssl3_send_server_key_exchange was not restartable
6315 (the state was not changed to SSL3_ST_SW_KEY_EXCH_B, and because of
6316 this the server could overwrite ephemeral keys that the client
6320 *) Turn DSA_is_prime into a macro that calls BN_is_prime,
6321 using 50 iterations of the Rabin-Miller test.
6323 DSA_generate_parameters now uses BN_is_prime_fasttest (with 50
6324 iterations of the Rabin-Miller test as required by the appendix
6325 to FIPS PUB 186[-1]) instead of DSA_is_prime.
6326 As BN_is_prime_fasttest includes trial division, DSA parameter
6327 generation becomes much faster.
6329 This implies a change for the callback functions in DSA_is_prime
6330 and DSA_generate_parameters: The callback function is called once
6331 for each positive witness in the Rabin-Miller test, not just
6332 occasionally in the inner loop; and the parameters to the
6333 callback function now provide an iteration count for the outer
6334 loop rather than for the current invocation of the inner loop.
6335 DSA_generate_parameters additionally can call the callback
6336 function with an 'iteration count' of -1, meaning that a
6337 candidate has passed the trial division test (when q is generated
6338 from an application-provided seed, trial division is skipped).
6341 *) New function BN_is_prime_fasttest that optionally does trial
6342 division before starting the Rabin-Miller test and has
6343 an additional BN_CTX * argument (whereas BN_is_prime always
6344 has to allocate at least one BN_CTX).
6345 'callback(1, -1, cb_arg)' is called when a number has passed the
6346 trial division stage.
6349 *) Fix for bug in CRL encoding. The validity dates weren't being handled
6353 *) New -pkcs12 option to CA.pl script to write out a PKCS#12 file.
6356 *) New function BN_pseudo_rand().
6359 *) Clean up BN_mod_mul_montgomery(): replace the broken (and unreadable)
6360 bignum version of BN_from_montgomery() with the working code from
6361 SSLeay 0.9.0 (the word based version is faster anyway), and clean up
6365 *) Avoid a race condition in s2_clnt.c (function get_server_hello) that
6366 made it impossible to use the same SSL_SESSION data structure in
6367 SSL2 clients in multiple threads.
6370 *) The return value of RAND_load_file() no longer counts bytes obtained
6371 by stat(). RAND_load_file(..., -1) is new and uses the complete file
6372 to seed the PRNG (previously an explicit byte count was required).
6373 [Ulf Möller, Bodo Möller]
6375 *) Clean up CRYPTO_EX_DATA functions, some of these didn't have prototypes
6376 used (char *) instead of (void *) and had casts all over the place.
6379 *) Make BN_generate_prime() return NULL on error if ret!=NULL.
6382 *) Retain source code compatibility for BN_prime_checks macro:
6383 BN_is_prime(..., BN_prime_checks, ...) now uses
6384 BN_prime_checks_for_size to determine the appropriate number of
6385 Rabin-Miller iterations.
6388 *) Diffie-Hellman uses "safe" primes: DH_check() return code renamed to
6389 DH_CHECK_P_NOT_SAFE_PRIME.
6390 (Check if this is true? OpenPGP calls them "strong".)
6393 *) Merge the functionality of "dh" and "gendh" programs into a new program
6394 "dhparam". The old programs are retained for now but will handle DH keys
6395 (instead of parameters) in future.
6398 *) Make the ciphers, s_server and s_client programs check the return values
6399 when a new cipher list is set.
6402 *) Enhance the SSL/TLS cipher mechanism to correctly handle the TLS 56bit
6403 ciphers. Before when the 56bit ciphers were enabled the sorting was
6406 The syntax for the cipher sorting has been extended to support sorting by
6407 cipher-strength (using the strength_bits hard coded in the tables).
6408 The new command is "@STRENGTH" (see also doc/apps/ciphers.pod).
6410 Fix a bug in the cipher-command parser: when supplying a cipher command
6411 string with an "undefined" symbol (neither command nor alphanumeric
6412 [A-Za-z0-9], ssl_set_cipher_list used to hang in an endless loop. Now
6413 an error is flagged.
6415 Due to the strength-sorting extension, the code of the
6416 ssl_create_cipher_list() function was completely rearranged. I hope that
6417 the readability was also increased :-)
6418 [Lutz Jaenicke <Lutz.Jaenicke@aet.TU-Cottbus.DE>]
6420 *) Minor change to 'x509' utility. The -CAcreateserial option now uses 1
6421 for the first serial number and places 2 in the serial number file. This
6422 avoids problems when the root CA is created with serial number zero and
6423 the first user certificate has the same issuer name and serial number
6427 *) Fixes to X509_ATTRIBUTE utilities, change the 'req' program so it uses
6428 the new code. Add documentation for this stuff.
6431 *) Changes to X509_ATTRIBUTE utilities. These have been renamed from
6432 X509_*() to X509at_*() on the grounds that they don't handle X509
6433 structures and behave in an analagous way to the X509v3 functions:
6434 they shouldn't be called directly but wrapper functions should be used
6437 So we also now have some wrapper functions that call the X509at functions
6438 when passed certificate requests. (TO DO: similar things can be done with
6439 PKCS#7 signed and unsigned attributes, PKCS#12 attributes and a few other
6440 things. Some of these need some d2i or i2d and print functionality
6441 because they handle more complex structures.)
6444 *) Add missing #ifndefs that caused missing symbols when building libssl
6445 as a shared library without RSA. Use #ifndef NO_SSL2 instead of
6446 NO_RSA in ssl/s2*.c.
6447 [Kris Kennaway <kris@hub.freebsd.org>, modified by Ulf Möller]
6449 *) Precautions against using the PRNG uninitialized: RAND_bytes() now
6450 has a return value which indicates the quality of the random data
6451 (1 = ok, 0 = not seeded). Also an error is recorded on the thread's
6452 error queue. New function RAND_pseudo_bytes() generates output that is
6453 guaranteed to be unique but not unpredictable. RAND_add is like
6454 RAND_seed, but takes an extra argument for an entropy estimate
6455 (RAND_seed always assumes full entropy).
6458 *) Do more iterations of Rabin-Miller probable prime test (specifically,
6459 3 for 1024-bit primes, 6 for 512-bit primes, 12 for 256-bit primes
6460 instead of only 2 for all lengths; see BN_prime_checks_for_size definition
6461 in crypto/bn/bn_prime.c for the complete table). This guarantees a
6462 false-positive rate of at most 2^-80 for random input.
6465 *) Rewrite ssl3_read_n (ssl/s3_pkt.c) avoiding a couple of bugs.
6468 *) New function X509_CTX_rget_chain() (renamed to X509_CTX_get1_chain
6469 in the 0.9.5 release), this returns the chain
6470 from an X509_CTX structure with a dup of the stack and all
6471 the X509 reference counts upped: so the stack will exist
6472 after X509_CTX_cleanup() has been called. Modify pkcs12.c
6475 Also make SSL_SESSION_print() print out the verify return
6479 *) Add manpage for the pkcs12 command. Also change the default
6480 behaviour so MAC iteration counts are used unless the new
6481 -nomaciter option is used. This improves file security and
6482 only older versions of MSIE (4.0 for example) need it.
6485 *) Honor the no-xxx Configure options when creating .DEF files.
6488 *) Add PKCS#10 attributes to field table: challengePassword,
6489 unstructuredName and unstructuredAddress. These are taken from
6490 draft PKCS#9 v2.0 but are compatible with v1.2 provided no
6491 international characters are used.
6493 More changes to X509_ATTRIBUTE code: allow the setting of types
6494 based on strings. Remove the 'loc' parameter when adding
6495 attributes because these will be a SET OF encoding which is sorted
6499 *) Initial changes to the 'req' utility to allow request generation
6500 automation. This will allow an application to just generate a template
6501 file containing all the field values and have req construct the
6504 Initial support for X509_ATTRIBUTE handling. Stacks of these are
6505 used all over the place including certificate requests and PKCS#7
6506 structures. They are currently handled manually where necessary with
6507 some primitive wrappers for PKCS#7. The new functions behave in a
6508 manner analogous to the X509 extension functions: they allow
6509 attributes to be looked up by NID and added.
6511 Later something similar to the X509V3 code would be desirable to
6512 automatically handle the encoding, decoding and printing of the
6513 more complex types. The string types like challengePassword can
6514 be handled by the string table functions.
6516 Also modified the multi byte string table handling. Now there is
6517 a 'global mask' which masks out certain types. The table itself
6518 can use the flag STABLE_NO_MASK to ignore the mask setting: this
6519 is useful when for example there is only one permissible type
6520 (as in countryName) and using the mask might result in no valid
6524 *) Clean up 'Finished' handling, and add functions SSL_get_finished and
6525 SSL_get_peer_finished to allow applications to obtain the latest
6526 Finished messages sent to the peer or expected from the peer,
6527 respectively. (SSL_get_peer_finished is usually the Finished message
6528 actually received from the peer, otherwise the protocol will be aborted.)
6530 As the Finished message are message digests of the complete handshake
6531 (with a total of 192 bits for TLS 1.0 and more for SSL 3.0), they can
6532 be used for external authentication procedures when the authentication
6533 provided by SSL/TLS is not desired or is not enough.
6536 *) Enhanced support for Alpha Linux is added. Now ./config checks if
6537 the host supports BWX extension and if Compaq C is present on the
6538 $PATH. Just exploiting of the BWX extension results in 20-30%
6539 performance kick for some algorithms, e.g. DES and RC4 to mention
6540 a couple. Compaq C in turn generates ~20% faster code for MD5 and
6544 *) Add support for MS "fast SGC". This is arguably a violation of the
6545 SSL3/TLS protocol. Netscape SGC does two handshakes: the first with
6546 weak crypto and after checking the certificate is SGC a second one
6547 with strong crypto. MS SGC stops the first handshake after receiving
6548 the server certificate message and sends a second client hello. Since
6549 a server will typically do all the time consuming operations before
6550 expecting any further messages from the client (server key exchange
6551 is the most expensive) there is little difference between the two.
6553 To get OpenSSL to support MS SGC we have to permit a second client
6554 hello message after we have sent server done. In addition we have to
6555 reset the MAC if we do get this second client hello.
6558 *) Add a function 'd2i_AutoPrivateKey()' this will automatically decide
6559 if a DER encoded private key is RSA or DSA traditional format. Changed
6560 d2i_PrivateKey_bio() to use it. This is only needed for the "traditional"
6561 format DER encoded private key. Newer code should use PKCS#8 format which
6562 has the key type encoded in the ASN1 structure. Added DER private key
6563 support to pkcs8 application.
6566 *) SSL 3/TLS 1 servers now don't request certificates when an anonymous
6567 ciphersuites has been selected (as required by the SSL 3/TLS 1
6568 specifications). Exception: When SSL_VERIFY_FAIL_IF_NO_PEER_CERT
6569 is set, we interpret this as a request to violate the specification
6570 (the worst that can happen is a handshake failure, and 'correct'
6571 behaviour would result in a handshake failure anyway).
6574 *) In SSL_CTX_add_session, take into account that there might be multiple
6575 SSL_SESSION structures with the same session ID (e.g. when two threads
6576 concurrently obtain them from an external cache).
6577 The internal cache can handle only one SSL_SESSION with a given ID,
6578 so if there's a conflict, we now throw out the old one to achieve
6582 *) Add OIDs for idea and blowfish in CBC mode. This will allow both
6583 to be used in PKCS#5 v2.0 and S/MIME. Also add checking to
6584 some routines that use cipher OIDs: some ciphers do not have OIDs
6585 defined and so they cannot be used for S/MIME and PKCS#5 v2.0 for
6589 *) Simplify the trust setting structure and code. Now we just have
6590 two sequences of OIDs for trusted and rejected settings. These will
6591 typically have values the same as the extended key usage extension
6592 and any application specific purposes.
6594 The trust checking code now has a default behaviour: it will just
6595 check for an object with the same NID as the passed id. Functions can
6596 be provided to override either the default behaviour or the behaviour
6597 for a given id. SSL client, server and email already have functions
6598 in place for compatibility: they check the NID and also return "trusted"
6599 if the certificate is self signed.
6602 *) Add d2i,i2d bio/fp functions for PrivateKey: these convert the
6603 traditional format into an EVP_PKEY structure.
6606 *) Add a password callback function PEM_cb() which either prompts for
6607 a password if usr_data is NULL or otherwise assumes it is a null
6608 terminated password. Allow passwords to be passed on command line
6609 environment or config files in a few more utilities.
6612 *) Add a bunch of DER and PEM functions to handle PKCS#8 format private
6613 keys. Add some short names for PKCS#8 PBE algorithms and allow them
6614 to be specified on the command line for the pkcs8 and pkcs12 utilities.
6615 Update documentation.
6618 *) Support for ASN1 "NULL" type. This could be handled before by using
6619 ASN1_TYPE but there wasn't any function that would try to read a NULL
6620 and produce an error if it couldn't. For compatibility we also have
6621 ASN1_NULL_new() and ASN1_NULL_free() functions but these are faked and
6622 don't allocate anything because they don't need to.
6625 *) Initial support for MacOS is now provided. Examine INSTALL.MacOS
6627 [Andy Polyakov, Roy Woods <roy@centicsystems.ca>]
6629 *) Rebuild of the memory allocation routines used by OpenSSL code and
6630 possibly others as well. The purpose is to make an interface that
6631 provide hooks so anyone can build a separate set of allocation and
6632 deallocation routines to be used by OpenSSL, for example memory
6633 pool implementations, or something else, which was previously hard
6634 since Malloc(), Realloc() and Free() were defined as macros having
6635 the values malloc, realloc and free, respectively (except for Win32
6636 compilations). The same is provided for memory debugging code.
6637 OpenSSL already comes with functionality to find memory leaks, but
6638 this gives people a chance to debug other memory problems.
6640 With these changes, a new set of functions and macros have appeared:
6642 CRYPTO_set_mem_debug_functions() [F]
6643 CRYPTO_get_mem_debug_functions() [F]
6644 CRYPTO_dbg_set_options() [F]
6645 CRYPTO_dbg_get_options() [F]
6646 CRYPTO_malloc_debug_init() [M]
6648 The memory debug functions are NULL by default, unless the library
6649 is compiled with CRYPTO_MDEBUG or friends is defined. If someone
6650 wants to debug memory anyway, CRYPTO_malloc_debug_init() (which
6651 gives the standard debugging functions that come with OpenSSL) or
6652 CRYPTO_set_mem_debug_functions() (tells OpenSSL to use functions
6653 provided by the library user) must be used. When the standard
6654 debugging functions are used, CRYPTO_dbg_set_options can be used to
6655 request additional information:
6656 CRYPTO_dbg_set_options(V_CYRPTO_MDEBUG_xxx) corresponds to setting
6657 the CRYPTO_MDEBUG_xxx macro when compiling the library.
6659 Also, things like CRYPTO_set_mem_functions will always give the
6660 expected result (the new set of functions is used for allocation
6661 and deallocation) at all times, regardless of platform and compiler
6664 To finish it up, some functions that were never use in any other
6665 way than through macros have a new API and new semantic:
6668 CRYPTO_dbg_realloc()
6671 All macros of value have retained their old syntax.
6672 [Richard Levitte and Bodo Moeller]
6674 *) Some S/MIME fixes. The OID for SMIMECapabilities was wrong, the
6675 ordering of SMIMECapabilities wasn't in "strength order" and there
6676 was a missing NULL in the AlgorithmIdentifier for the SHA1 signature
6680 *) Some ASN1 types with illegal zero length encoding (INTEGER,
6681 ENUMERATED and OBJECT IDENTIFIER) choked the ASN1 routines.
6682 [Frans Heymans <fheymans@isaserver.be>, modified by Steve Henson]
6684 *) Merge in my S/MIME library for OpenSSL. This provides a simple
6685 S/MIME API on top of the PKCS#7 code, a MIME parser (with enough
6686 functionality to handle multipart/signed properly) and a utility
6687 called 'smime' to call all this stuff. This is based on code I
6688 originally wrote for Celo who have kindly allowed it to be
6689 included in OpenSSL.
6692 *) Add variants des_set_key_checked and des_set_key_unchecked of
6693 des_set_key (aka des_key_sched). Global variable des_check_key
6694 decides which of these is called by des_set_key; this way
6695 des_check_key behaves as it always did, but applications and
6696 the library itself, which was buggy for des_check_key == 1,
6697 have a cleaner way to pick the version they need.
6700 *) New function PKCS12_newpass() which changes the password of a
6704 *) Modify X509_TRUST and X509_PURPOSE so it also uses a static and
6705 dynamic mix. In both cases the ids can be used as an index into the
6706 table. Also modified the X509_TRUST_add() and X509_PURPOSE_add()
6707 functions so they accept a list of the field values and the
6708 application doesn't need to directly manipulate the X509_TRUST
6712 *) Modify the ASN1_STRING_TABLE stuff so it also uses bsearch and doesn't
6716 *) Modify the way the V3 extension code looks up extensions. This now
6717 works in a similar way to the object code: we have some "standard"
6718 extensions in a static table which is searched with OBJ_bsearch()
6719 and the application can add dynamic ones if needed. The file
6720 crypto/x509v3/ext_dat.h now has the info: this file needs to be
6721 updated whenever a new extension is added to the core code and kept
6722 in ext_nid order. There is a simple program 'tabtest.c' which checks
6723 this. New extensions are not added too often so this file can readily
6724 be maintained manually.
6726 There are two big advantages in doing things this way. The extensions
6727 can be looked up immediately and no longer need to be "added" using
6728 X509V3_add_standard_extensions(): this function now does nothing.
6729 [Side note: I get *lots* of email saying the extension code doesn't
6730 work because people forget to call this function]
6731 Also no dynamic allocation is done unless new extensions are added:
6732 so if we don't add custom extensions there is no need to call
6733 X509V3_EXT_cleanup().
6736 *) Modify enc utility's salting as follows: make salting the default. Add a
6737 magic header, so unsalted files fail gracefully instead of just decrypting
6738 to garbage. This is because not salting is a big security hole, so people
6739 should be discouraged from doing it.
6742 *) Fixes and enhancements to the 'x509' utility. It allowed a message
6743 digest to be passed on the command line but it only used this
6744 parameter when signing a certificate. Modified so all relevant
6745 operations are affected by the digest parameter including the
6746 -fingerprint and -x509toreq options. Also -x509toreq choked if a
6747 DSA key was used because it didn't fix the digest.
6750 *) Initial certificate chain verify code. Currently tests the untrusted
6751 certificates for consistency with the verify purpose (which is set
6752 when the X509_STORE_CTX structure is set up) and checks the pathlength.
6754 There is a NO_CHAIN_VERIFY compilation option to keep the old behaviour:
6755 this is because it will reject chains with invalid extensions whereas
6756 every previous version of OpenSSL and SSLeay made no checks at all.
6758 Trust code: checks the root CA for the relevant trust settings. Trust
6759 settings have an initial value consistent with the verify purpose: e.g.
6760 if the verify purpose is for SSL client use it expects the CA to be
6761 trusted for SSL client use. However the default value can be changed to
6762 permit custom trust settings: one example of this would be to only trust
6763 certificates from a specific "secure" set of CAs.
6765 Also added X509_STORE_CTX_new() and X509_STORE_CTX_free() functions
6766 which should be used for version portability: especially since the
6767 verify structure is likely to change more often now.
6769 SSL integration. Add purpose and trust to SSL_CTX and SSL and functions
6770 to set them. If not set then assume SSL clients will verify SSL servers
6773 Two new options to the verify program: -untrusted allows a set of
6774 untrusted certificates to be passed in and -purpose which sets the
6775 intended purpose of the certificate. If a purpose is set then the
6776 new chain verify code is used to check extension consistency.
6779 *) Support for the authority information access extension.
6782 *) Modify RSA and DSA PEM read routines to transparently handle
6783 PKCS#8 format private keys. New *_PUBKEY_* functions that handle
6784 public keys in a format compatible with certificate
6785 SubjectPublicKeyInfo structures. Unfortunately there were already
6786 functions called *_PublicKey_* which used various odd formats so
6787 these are retained for compatibility: however the DSA variants were
6788 never in a public release so they have been deleted. Changed dsa/rsa
6789 utilities to handle the new format: note no releases ever handled public
6790 keys so we should be OK.
6792 The primary motivation for this change is to avoid the same fiasco
6793 that dogs private keys: there are several incompatible private key
6794 formats some of which are standard and some OpenSSL specific and
6795 require various evil hacks to allow partial transparent handling and
6796 even then it doesn't work with DER formats. Given the option anything
6797 other than PKCS#8 should be dumped: but the other formats have to
6798 stay in the name of compatibility.
6800 With public keys and the benefit of hindsight one standard format
6801 is used which works with EVP_PKEY, RSA or DSA structures: though
6802 it clearly returns an error if you try to read the wrong kind of key.
6804 Added a -pubkey option to the 'x509' utility to output the public key.
6805 Also rename the EVP_PKEY_get_*() to EVP_PKEY_rget_*()
6806 (renamed to EVP_PKEY_get1_*() in the OpenSSL 0.9.5 release) and add
6807 EVP_PKEY_rset_*() functions (renamed to EVP_PKEY_set1_*())
6808 that do the same as the EVP_PKEY_assign_*() except they up the
6809 reference count of the added key (they don't "swallow" the
6813 *) Fixes to crypto/x509/by_file.c the code to read in certificates and
6814 CRLs would fail if the file contained no certificates or no CRLs:
6815 added a new function to read in both types and return the number
6816 read: this means that if none are read it will be an error. The
6817 DER versions of the certificate and CRL reader would always fail
6818 because it isn't possible to mix certificates and CRLs in DER format
6819 without choking one or the other routine. Changed this to just read
6820 a certificate: this is the best we can do. Also modified the code
6821 in apps/verify.c to take notice of return codes: it was previously
6822 attempting to read in certificates from NULL pointers and ignoring
6823 any errors: this is one reason why the cert and CRL reader seemed
6824 to work. It doesn't check return codes from the default certificate
6825 routines: these may well fail if the certificates aren't installed.
6828 *) Code to support otherName option in GeneralName.
6831 *) First update to verify code. Change the verify utility
6832 so it warns if it is passed a self signed certificate:
6833 for consistency with the normal behaviour. X509_verify
6834 has been modified to it will now verify a self signed
6835 certificate if *exactly* the same certificate appears
6836 in the store: it was previously impossible to trust a
6837 single self signed certificate. This means that:
6838 openssl verify ss.pem
6839 now gives a warning about a self signed certificate but
6840 openssl verify -CAfile ss.pem ss.pem
6844 *) For servers, store verify_result in SSL_SESSION data structure
6845 (and add it to external session representation).
6846 This is needed when client certificate verifications fails,
6847 but an application-provided verification callback (set by
6848 SSL_CTX_set_cert_verify_callback) allows accepting the session
6849 anyway (i.e. leaves x509_store_ctx->error != X509_V_OK
6850 but returns 1): When the session is reused, we have to set
6851 ssl->verify_result to the appropriate error code to avoid
6853 [Bodo Moeller, problem pointed out by Lutz Jaenicke]
6855 *) Fix a bug in the new PKCS#7 code: it didn't consider the
6856 case in PKCS7_dataInit() where the signed PKCS7 structure
6857 didn't contain any existing data because it was being created.
6858 [Po-Cheng Chen <pocheng@nst.com.tw>, slightly modified by Steve Henson]
6860 *) Add a salt to the key derivation routines in enc.c. This
6861 forms the first 8 bytes of the encrypted file. Also add a
6862 -S option to allow a salt to be input on the command line.
6865 *) New function X509_cmp(). Oddly enough there wasn't a function
6866 to compare two certificates. We do this by working out the SHA1
6867 hash and comparing that. X509_cmp() will be needed by the trust
6871 *) SSL_get1_session() is like SSL_get_session(), but increments
6872 the reference count in the SSL_SESSION returned.
6873 [Geoff Thorpe <geoff@eu.c2.net>]
6875 *) Fix for 'req': it was adding a null to request attributes.
6876 Also change the X509_LOOKUP and X509_INFO code to handle
6877 certificate auxiliary information.
6880 *) Add support for 40 and 64 bit RC2 and RC4 algorithms: document
6884 *) Add the possibility to add extra information to the memory leak
6885 detecting output, to form tracebacks, showing from where each
6886 allocation was originated: CRYPTO_push_info("constant string") adds
6887 the string plus current file name and line number to a per-thread
6888 stack, CRYPTO_pop_info() does the obvious, CRYPTO_remove_all_info()
6889 is like calling CYRPTO_pop_info() until the stack is empty.
6890 Also updated memory leak detection code to be multi-thread-safe.
6893 *) Add options -text and -noout to pkcs7 utility and delete the
6894 encryption options which never did anything. Update docs.
6897 *) Add options to some of the utilities to allow the pass phrase
6898 to be included on either the command line (not recommended on
6899 OSes like Unix) or read from the environment. Update the
6900 manpages and fix a few bugs.
6903 *) Add a few manpages for some of the openssl commands.
6906 *) Fix the -revoke option in ca. It was freeing up memory twice,
6907 leaking and not finding already revoked certificates.
6910 *) Extensive changes to support certificate auxiliary information.
6911 This involves the use of X509_CERT_AUX structure and X509_AUX
6912 functions. An X509_AUX function such as PEM_read_X509_AUX()
6913 can still read in a certificate file in the usual way but it
6914 will also read in any additional "auxiliary information". By
6915 doing things this way a fair degree of compatibility can be
6916 retained: existing certificates can have this information added
6917 using the new 'x509' options.
6919 Current auxiliary information includes an "alias" and some trust
6920 settings. The trust settings will ultimately be used in enhanced
6921 certificate chain verification routines: currently a certificate
6922 can only be trusted if it is self signed and then it is trusted
6926 *) Fix assembler for Alpha (tested only on DEC OSF not Linux or *BSD).
6927 The problem was that one of the replacement routines had not been working
6928 since SSLeay releases. For now the offending routine has been replaced
6929 with non-optimised assembler. Even so, this now gives around 95%
6930 performance improvement for 1024 bit RSA signs.
6933 *) Hack to fix PKCS#7 decryption when used with some unorthodox RC2
6934 handling. Most clients have the effective key size in bits equal to
6935 the key length in bits: so a 40 bit RC2 key uses a 40 bit (5 byte) key.
6936 A few however don't do this and instead use the size of the decrypted key
6937 to determine the RC2 key length and the AlgorithmIdentifier to determine
6938 the effective key length. In this case the effective key length can still
6939 be 40 bits but the key length can be 168 bits for example. This is fixed
6940 by manually forcing an RC2 key into the EVP_PKEY structure because the
6941 EVP code can't currently handle unusual RC2 key sizes: it always assumes
6942 the key length and effective key length are equal.
6945 *) Add a bunch of functions that should simplify the creation of
6946 X509_NAME structures. Now you should be able to do:
6947 X509_NAME_add_entry_by_txt(nm, "CN", MBSTRING_ASC, "Steve", -1, -1, 0);
6948 and have it automatically work out the correct field type and fill in
6949 the structures. The more adventurous can try:
6950 X509_NAME_add_entry_by_txt(nm, field, MBSTRING_UTF8, str, -1, -1, 0);
6951 and it will (hopefully) work out the correct multibyte encoding.
6954 *) Change the 'req' utility to use the new field handling and multibyte
6955 copy routines. Before the DN field creation was handled in an ad hoc
6956 way in req, ca, and x509 which was rather broken and didn't support
6957 BMPStrings or UTF8Strings. Since some software doesn't implement
6958 BMPStrings or UTF8Strings yet, they can be enabled using the config file
6959 using the dirstring_type option. See the new comment in the default
6960 openssl.cnf for more info.
6963 *) Make crypto/rand/md_rand.c more robust:
6964 - Assure unique random numbers after fork().
6965 - Make sure that concurrent threads access the global counter and
6966 md serializably so that we never lose entropy in them
6967 or use exactly the same state in multiple threads.
6968 Access to the large state is not always serializable because
6969 the additional locking could be a performance killer, and
6970 md should be large enough anyway.
6973 *) New file apps/app_rand.c with commonly needed functionality
6974 for handling the random seed file.
6976 Use the random seed file in some applications that previously did not:
6978 dsaparam -genkey (which also ignored its '-rand' option),
6981 x509 (when signing).
6982 Except on systems with /dev/urandom, it is crucial to have a random
6983 seed file at least for key creation, DSA signing, and for DH exchanges;
6984 for RSA signatures we could do without one.
6986 gendh and gendsa (unlike genrsa) used to read only the first byte
6987 of each file listed in the '-rand' option. The function as previously
6988 found in genrsa is now in app_rand.c and is used by all programs
6989 that support '-rand'.
6992 *) In RAND_write_file, use mode 0600 for creating files;
6993 don't just chmod when it may be too late.
6996 *) Report an error from X509_STORE_load_locations
6997 when X509_LOOKUP_load_file or X509_LOOKUP_add_dir failed.
7000 *) New function ASN1_mbstring_copy() this copies a string in either
7001 ASCII, Unicode, Universal (4 bytes per character) or UTF8 format
7002 into an ASN1_STRING type. A mask of permissible types is passed
7003 and it chooses the "minimal" type to use or an error if not type
7007 *) Add function equivalents to the various macros in asn1.h. The old
7008 macros are retained with an M_ prefix. Code inside the library can
7009 use the M_ macros. External code (including the openssl utility)
7010 should *NOT* in order to be "shared library friendly".
7013 *) Add various functions that can check a certificate's extensions
7014 to see if it usable for various purposes such as SSL client,
7015 server or S/MIME and CAs of these types. This is currently
7016 VERY EXPERIMENTAL but will ultimately be used for certificate chain
7017 verification. Also added a -purpose flag to x509 utility to
7018 print out all the purposes.
7021 *) Add a CRYPTO_EX_DATA to X509 certificate structure and associated
7025 *) New X509V3_{X509,CRL,REVOKED}_get_d2i() functions. These will search
7026 for, obtain and decode and extension and obtain its critical flag.
7027 This allows all the necessary extension code to be handled in a
7028 single function call.
7031 *) RC4 tune-up featuring 30-40% performance improvement on most RISC
7032 platforms. See crypto/rc4/rc4_enc.c for further details.
7035 *) New -noout option to asn1parse. This causes no output to be produced
7036 its main use is when combined with -strparse and -out to extract data
7037 from a file (which may not be in ASN.1 format).
7040 *) Fix for pkcs12 program. It was hashing an invalid certificate pointer
7041 when producing the local key id.
7042 [Richard Levitte <levitte@stacken.kth.se>]
7044 *) New option -dhparam in s_server. This allows a DH parameter file to be
7045 stated explicitly. If it is not stated then it tries the first server
7046 certificate file. The previous behaviour hard coded the filename
7050 *) Add -pubin and -pubout options to the rsa and dsa commands. These allow
7051 a public key to be input or output. For example:
7052 openssl rsa -in key.pem -pubout -out pubkey.pem
7053 Also added necessary DSA public key functions to handle this.
7056 *) Fix so PKCS7_dataVerify() doesn't crash if no certificates are contained
7057 in the message. This was handled by allowing
7058 X509_find_by_issuer_and_serial() to tolerate a NULL passed to it.
7059 [Steve Henson, reported by Sampo Kellomaki <sampo@mail.neuronio.pt>]
7061 *) Fix for bug in d2i_ASN1_bytes(): other ASN1 functions add an extra null
7062 to the end of the strings whereas this didn't. This would cause problems
7063 if strings read with d2i_ASN1_bytes() were later modified.
7064 [Steve Henson, reported by Arne Ansper <arne@ats.cyber.ee>]
7066 *) Fix for base64 decode bug. When a base64 bio reads only one line of
7067 data and it contains EOF it will end up returning an error. This is
7068 caused by input 46 bytes long. The cause is due to the way base64
7069 BIOs find the start of base64 encoded data. They do this by trying a
7070 trial decode on each line until they find one that works. When they
7071 do a flag is set and it starts again knowing it can pass all the
7072 data directly through the decoder. Unfortunately it doesn't reset
7073 the context it uses. This means that if EOF is reached an attempt
7074 is made to pass two EOFs through the context and this causes the
7075 resulting error. This can also cause other problems as well. As is
7076 usual with these problems it takes *ages* to find and the fix is
7077 trivial: move one line.
7078 [Steve Henson, reported by ian@uns.ns.ac.yu (Ivan Nejgebauer) ]
7080 *) Ugly workaround to get s_client and s_server working under Windows. The
7081 old code wouldn't work because it needed to select() on sockets and the
7082 tty (for keypresses and to see if data could be written). Win32 only
7083 supports select() on sockets so we select() with a 1s timeout on the
7084 sockets and then see if any characters are waiting to be read, if none
7085 are present then we retry, we also assume we can always write data to
7086 the tty. This isn't nice because the code then blocks until we've
7087 received a complete line of data and it is effectively polling the
7088 keyboard at 1s intervals: however it's quite a bit better than not
7089 working at all :-) A dedicated Windows application might handle this
7090 with an event loop for example.
7093 *) Enhance RSA_METHOD structure. Now there are two extra methods, rsa_sign
7094 and rsa_verify. When the RSA_FLAGS_SIGN_VER option is set these functions
7095 will be called when RSA_sign() and RSA_verify() are used. This is useful
7096 if rsa_pub_dec() and rsa_priv_enc() equivalents are not available.
7097 For this to work properly RSA_public_decrypt() and RSA_private_encrypt()
7098 should *not* be used: RSA_sign() and RSA_verify() must be used instead.
7099 This necessitated the support of an extra signature type NID_md5_sha1
7100 for SSL signatures and modifications to the SSL library to use it instead
7101 of calling RSA_public_decrypt() and RSA_private_encrypt().
7104 *) Add new -verify -CAfile and -CApath options to the crl program, these
7105 will lookup a CRL issuers certificate and verify the signature in a
7106 similar way to the verify program. Tidy up the crl program so it
7107 no longer accesses structures directly. Make the ASN1 CRL parsing a bit
7108 less strict. It will now permit CRL extensions even if it is not
7109 a V2 CRL: this will allow it to tolerate some broken CRLs.
7112 *) Initialize all non-automatic variables each time one of the openssl
7113 sub-programs is started (this is necessary as they may be started
7114 multiple times from the "OpenSSL>" prompt).
7115 [Lennart Bang, Bodo Moeller]
7117 *) Preliminary compilation option RSA_NULL which disables RSA crypto without
7118 removing all other RSA functionality (this is what NO_RSA does). This
7119 is so (for example) those in the US can disable those operations covered
7120 by the RSA patent while allowing storage and parsing of RSA keys and RSA
7124 *) Non-copying interface to BIO pairs.
7125 (still largely untested)
7128 *) New function ANS1_tag2str() to convert an ASN1 tag to a descriptive
7129 ASCII string. This was handled independently in various places before.
7132 *) New functions UTF8_getc() and UTF8_putc() that parse and generate
7133 UTF8 strings a character at a time.
7136 *) Use client_version from client hello to select the protocol
7137 (s23_srvr.c) and for RSA client key exchange verification
7138 (s3_srvr.c), as required by the SSL 3.0/TLS 1.0 specifications.
7141 *) Add various utility functions to handle SPKACs, these were previously
7142 handled by poking round in the structure internals. Added new function
7143 NETSCAPE_SPKI_print() to print out SPKAC and a new utility 'spkac' to
7144 print, verify and generate SPKACs. Based on an original idea from
7145 Massimiliano Pala <madwolf@comune.modena.it> but extensively modified.
7148 *) RIPEMD160 is operational on all platforms and is back in 'make test'.
7151 *) Allow the config file extension section to be overwritten on the
7152 command line. Based on an original idea from Massimiliano Pala
7153 <madwolf@comune.modena.it>. The new option is called -extensions
7154 and can be applied to ca, req and x509. Also -reqexts to override
7155 the request extensions in req and -crlexts to override the crl extensions
7159 *) Add new feature to the SPKAC handling in ca. Now you can include
7160 the same field multiple times by preceding it by "XXXX." for example:
7163 this is the same syntax as used in the req config file.
7166 *) Allow certificate extensions to be added to certificate requests. These
7167 are specified in a 'req_extensions' option of the req section of the
7168 config file. They can be printed out with the -text option to req but
7169 are otherwise ignored at present.
7172 *) Fix a horrible bug in enc_read() in crypto/evp/bio_enc.c: if the first
7173 data read consists of only the final block it would not decrypted because
7174 EVP_CipherUpdate() would correctly report zero bytes had been decrypted.
7175 A misplaced 'break' also meant the decrypted final block might not be
7176 copied until the next read.
7179 *) Initial support for DH_METHOD. Again based on RSA_METHOD. Also added
7180 a few extra parameters to the DH structure: these will be useful if
7181 for example we want the value of 'q' or implement X9.42 DH.
7184 *) Initial support for DSA_METHOD. This is based on the RSA_METHOD and
7185 provides hooks that allow the default DSA functions or functions on a
7186 "per key" basis to be replaced. This allows hardware acceleration and
7187 hardware key storage to be handled without major modification to the
7188 library. Also added low level modexp hooks and CRYPTO_EX structure and
7189 associated functions.
7192 *) Add a new flag to memory BIOs, BIO_FLAG_MEM_RDONLY. This marks the BIO
7193 as "read only": it can't be written to and the buffer it points to will
7194 not be freed. Reading from a read only BIO is much more efficient than
7195 a normal memory BIO. This was added because there are several times when
7196 an area of memory needs to be read from a BIO. The previous method was
7197 to create a memory BIO and write the data to it, this results in two
7198 copies of the data and an O(n^2) reading algorithm. There is a new
7199 function BIO_new_mem_buf() which creates a read only memory BIO from
7200 an area of memory. Also modified the PKCS#7 routines to use read only
7204 *) Bugfix: ssl23_get_client_hello did not work properly when called in
7205 state SSL23_ST_SR_CLNT_HELLO_B, i.e. when the first 7 bytes of
7206 a SSLv2-compatible client hello for SSLv3 or TLSv1 could be read,
7207 but a retry condition occured while trying to read the rest.
7210 *) The PKCS7_ENC_CONTENT_new() function was setting the content type as
7211 NID_pkcs7_encrypted by default: this was wrong since this should almost
7212 always be NID_pkcs7_data. Also modified the PKCS7_set_type() to handle
7213 the encrypted data type: this is a more sensible place to put it and it
7214 allows the PKCS#12 code to be tidied up that duplicated this
7218 *) Changed obj_dat.pl script so it takes its input and output files on
7219 the command line. This should avoid shell escape redirection problems
7223 *) Initial support for certificate extension requests, these are included
7224 in things like Xenroll certificate requests. Included functions to allow
7225 extensions to be obtained and added.
7228 *) -crlf option to s_client and s_server for sending newlines as
7229 CRLF (as required by many protocols).
7232 Changes between 0.9.3a and 0.9.4 [09 Aug 1999]
7234 *) Install libRSAglue.a when OpenSSL is built with RSAref.
7235 [Ralf S. Engelschall]
7237 *) A few more ``#ifndef NO_FP_API / #endif'' pairs for consistency.
7238 [Andrija Antonijevic <TheAntony2@bigfoot.com>]
7240 *) Fix -startdate and -enddate (which was missing) arguments to 'ca'
7244 *) New function DSA_dup_DH, which duplicates DSA parameters/keys as
7245 DH parameters/keys (q is lost during that conversion, but the resulting
7246 DH parameters contain its length).
7248 For 1024-bit p, DSA_generate_parameters followed by DSA_dup_DH is
7249 much faster than DH_generate_parameters (which creates parameters
7250 where p = 2*q + 1), and also the smaller q makes DH computations
7251 much more efficient (160-bit exponentiation instead of 1024-bit
7252 exponentiation); so this provides a convenient way to support DHE
7253 ciphersuites in SSL/TLS servers (see ssl/ssltest.c). It is of
7254 utter importance to use
7255 SSL_CTX_set_options(s_ctx, SSL_OP_SINGLE_DH_USE);
7257 SSL_set_options(s_ctx, SSL_OP_SINGLE_DH_USE);
7258 when such DH parameters are used, because otherwise small subgroup
7259 attacks may become possible!
7262 *) Avoid memory leak in i2d_DHparams.
7265 *) Allow the -k option to be used more than once in the enc program:
7266 this allows the same encrypted message to be read by multiple recipients.
7269 *) New function OBJ_obj2txt(buf, buf_len, a, no_name), this converts
7270 an ASN1_OBJECT to a text string. If the "no_name" parameter is set then
7271 it will always use the numerical form of the OID, even if it has a short
7275 *) Added an extra RSA flag: RSA_FLAG_EXT_PKEY. Previously the rsa_mod_exp
7276 method only got called if p,q,dmp1,dmq1,iqmp components were present,
7277 otherwise bn_mod_exp was called. In the case of hardware keys for example
7278 no private key components need be present and it might store extra data
7279 in the RSA structure, which cannot be accessed from bn_mod_exp.
7280 By setting RSA_FLAG_EXT_PKEY rsa_mod_exp will always be called for
7281 private key operations.
7284 *) Added support for SPARC Linux.
7287 *) pem_password_cb function type incompatibly changed from
7288 typedef int pem_password_cb(char *buf, int size, int rwflag);
7290 ....(char *buf, int size, int rwflag, void *userdata);
7291 so that applications can pass data to their callbacks:
7292 The PEM[_ASN1]_{read,write}... functions and macros now take an
7293 additional void * argument, which is just handed through whenever
7294 the password callback is called.
7295 [Damien Miller <dmiller@ilogic.com.au>; tiny changes by Bodo Moeller]
7297 New function SSL_CTX_set_default_passwd_cb_userdata.
7299 Compatibility note: As many C implementations push function arguments
7300 onto the stack in reverse order, the new library version is likely to
7301 interoperate with programs that have been compiled with the old
7302 pem_password_cb definition (PEM_whatever takes some data that
7303 happens to be on the stack as its last argument, and the callback
7304 just ignores this garbage); but there is no guarantee whatsoever that
7307 *) The -DPLATFORM="\"$(PLATFORM)\"" definition and the similar -DCFLAGS=...
7308 (both in crypto/Makefile.ssl for use by crypto/cversion.c) caused
7309 problems not only on Windows, but also on some Unix platforms.
7310 To avoid problematic command lines, these definitions are now in an
7311 auto-generated file crypto/buildinf.h (created by crypto/Makefile.ssl
7312 for standard "make" builds, by util/mk1mf.pl for "mk1mf" builds).
7315 *) MIPS III/IV assembler module is reimplemented.
7318 *) More DES library cleanups: remove references to srand/rand and
7319 delete an unused file.
7322 *) Add support for the the free Netwide assembler (NASM) under Win32,
7323 since not many people have MASM (ml) and it can be hard to obtain.
7324 This is currently experimental but it seems to work OK and pass all
7325 the tests. Check out INSTALL.W32 for info.
7328 *) Fix memory leaks in s3_clnt.c: All non-anonymous SSL3/TLS1 connections
7329 without temporary keys kept an extra copy of the server key,
7330 and connections with temporary keys did not free everything in case
7334 *) New function RSA_check_key and new openssl rsa option -check
7335 for verifying the consistency of RSA keys.
7336 [Ulf Moeller, Bodo Moeller]
7338 *) Various changes to make Win32 compile work:
7339 1. Casts to avoid "loss of data" warnings in p5_crpt2.c
7340 2. Change unsigned int to int in b_dump.c to avoid "signed/unsigned
7341 comparison" warnings.
7342 3. Add sk_<TYPE>_sort to DEF file generator and do make update.
7345 *) Add a debugging option to PKCS#5 v2 key generation function: when
7346 you #define DEBUG_PKCS5V2 passwords, salts, iteration counts and
7347 derived keys are printed to stderr.
7350 *) Copy the flags in ASN1_STRING_dup().
7351 [Roman E. Pavlov <pre@mo.msk.ru>]
7353 *) The x509 application mishandled signing requests containing DSA
7354 keys when the signing key was also DSA and the parameters didn't match.
7356 It was supposed to omit the parameters when they matched the signing key:
7357 the verifying software was then supposed to automatically use the CA's
7358 parameters if they were absent from the end user certificate.
7360 Omitting parameters is no longer recommended. The test was also
7361 the wrong way round! This was probably due to unusual behaviour in
7362 EVP_cmp_parameters() which returns 1 if the parameters match.
7363 This meant that parameters were omitted when they *didn't* match and
7364 the certificate was useless. Certificates signed with 'ca' didn't have
7366 [Steve Henson, reported by Doug Erickson <Doug.Erickson@Part.NET>]
7368 *) Memory leak checking (-DCRYPTO_MDEBUG) had some problems.
7369 The interface is as follows:
7370 Applications can use
7371 CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_ON) aka MemCheck_start(),
7372 CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_OFF) aka MemCheck_stop();
7373 "off" is now the default.
7374 The library internally uses
7375 CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_DISABLE) aka MemCheck_off(),
7376 CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_ENABLE) aka MemCheck_on()
7377 to disable memory-checking temporarily.
7379 Some inconsistent states that previously were possible (and were
7380 even the default) are now avoided.
7382 -DCRYPTO_MDEBUG_TIME is new and additionally stores the current time
7383 with each memory chunk allocated; this is occasionally more helpful
7384 than just having a counter.
7386 -DCRYPTO_MDEBUG_THREAD is also new and adds the thread ID.
7388 -DCRYPTO_MDEBUG_ALL enables all of the above, plus any future
7392 *) Introduce "mode" for SSL structures (with defaults in SSL_CTX),
7393 which largely parallels "options", but is for changing API behaviour,
7394 whereas "options" are about protocol behaviour.
7395 Initial "mode" flags are:
7397 SSL_MODE_ENABLE_PARTIAL_WRITE Allow SSL_write to report success when
7398 a single record has been written.
7399 SSL_MODE_ACCEPT_MOVING_WRITE_BUFFER Don't insist that SSL_write
7400 retries use the same buffer location.
7401 (But all of the contents must be
7405 *) Bugfix: SSL_set_options ignored its parameter, only SSL_CTX_set_options
7408 *) Fix problems with no-hmac etc.
7409 [Ulf Möller, pointed out by Brian Wellington <bwelling@tislabs.com>]
7411 *) New functions RSA_get_default_method(), RSA_set_method() and
7412 RSA_get_method(). These allows replacement of RSA_METHODs without having
7413 to mess around with the internals of an RSA structure.
7416 *) Fix memory leaks in DSA_do_sign and DSA_is_prime.
7417 Also really enable memory leak checks in openssl.c and in some
7419 [Chad C. Mulligan, Bodo Moeller]
7421 *) Fix a bug in d2i_ASN1_INTEGER() and i2d_ASN1_INTEGER() which can mess
7422 up the length of negative integers. This has now been simplified to just
7423 store the length when it is first determined and use it later, rather
7424 than trying to keep track of where data is copied and updating it to
7426 [Steve Henson, reported by Brien Wheeler
7427 <bwheeler@authentica-security.com>]
7429 *) Add a new function PKCS7_signatureVerify. This allows the verification
7430 of a PKCS#7 signature but with the signing certificate passed to the
7431 function itself. This contrasts with PKCS7_dataVerify which assumes the
7432 certificate is present in the PKCS#7 structure. This isn't always the
7433 case: certificates can be omitted from a PKCS#7 structure and be
7434 distributed by "out of band" means (such as a certificate database).
7437 *) Complete the PEM_* macros with DECLARE_PEM versions to replace the
7438 function prototypes in pem.h, also change util/mkdef.pl to add the
7439 necessary function names.
7442 *) mk1mf.pl (used by Windows builds) did not properly read the
7443 options set by Configure in the top level Makefile, and Configure
7444 was not even able to write more than one option correctly.
7445 Fixed, now "no-idea no-rc5 -DCRYPTO_MDEBUG" etc. works as intended.
7448 *) New functions CONF_load_bio() and CONF_load_fp() to allow a config
7449 file to be loaded from a BIO or FILE pointer. The BIO version will
7450 for example allow memory BIOs to contain config info.
7453 *) New function "CRYPTO_num_locks" that returns CRYPTO_NUM_LOCKS.
7454 Whoever hopes to achieve shared-library compatibility across versions
7455 must use this, not the compile-time macro.
7456 (Exercise 0.9.4: Which is the minimum library version required by
7458 Note: All this applies only to multi-threaded programs, others don't
7462 *) Add missing case to s3_clnt.c state machine -- one of the new SSL tests
7463 through a BIO pair triggered the default case, i.e.
7464 SSLerr(...,SSL_R_UNKNOWN_STATE).
7467 *) New "BIO pair" concept (crypto/bio/bss_bio.c) so that applications
7468 can use the SSL library even if none of the specific BIOs is
7472 *) Fix a bug in i2d_DSAPublicKey() which meant it returned the wrong value
7473 for the encoded length.
7474 [Jeon KyoungHo <khjeon@sds.samsung.co.kr>]
7476 *) Add initial documentation of the X509V3 functions.
7479 *) Add a new pair of functions PEM_write_PKCS8PrivateKey() and
7480 PEM_write_bio_PKCS8PrivateKey() that are equivalent to
7481 PEM_write_PrivateKey() and PEM_write_bio_PrivateKey() but use the more
7482 secure PKCS#8 private key format with a high iteration count.
7485 *) Fix determination of Perl interpreter: A perl or perl5
7486 _directory_ in $PATH was also accepted as the interpreter.
7487 [Ralf S. Engelschall]
7489 *) Fix demos/sign/sign.c: well there wasn't anything strictly speaking
7490 wrong with it but it was very old and did things like calling
7491 PEM_ASN1_read() directly and used MD5 for the hash not to mention some
7495 *) Fix demos/selfsign.c: it used obsolete and deleted functions, changed
7496 to use the new extension code.
7499 *) Implement the PEM_read/PEM_write functions in crypto/pem/pem_all.c
7500 with macros. This should make it easier to change their form, add extra
7501 arguments etc. Fix a few PEM prototypes which didn't have cipher as a
7505 *) Add to configuration table a new entry that can specify an alternative
7506 name for unistd.h (for pre-POSIX systems); we need this for NeXTstep,
7507 according to Mark Crispin <MRC@Panda.COM>.
7511 *) DES CBC did not update the IV. Weird.
7514 des_cbc_encrypt does not update the IV, but des_ncbc_encrypt does.
7515 Changing the behaviour of the former might break existing programs --
7516 where IV updating is needed, des_ncbc_encrypt can be used.
7519 *) When bntest is run from "make test" it drives bc to check its
7520 calculations, as well as internally checking them. If an internal check
7521 fails, it needs to cause bc to give a non-zero result or make test carries
7522 on without noticing the failure. Fixed.
7525 *) DES library cleanups.
7528 *) Add support for PKCS#5 v2.0 PBE algorithms. This will permit PKCS#8 to be
7529 used with any cipher unlike PKCS#5 v1.5 which can at most handle 64 bit
7530 ciphers. NOTE: although the key derivation function has been verified
7531 against some published test vectors it has not been extensively tested
7532 yet. Added a -v2 "cipher" option to pkcs8 application to allow the use
7536 *) Instead of "mkdir -p", which is not fully portable, use new
7537 Perl script "util/mkdir-p.pl".
7540 *) Rewrite the way password based encryption (PBE) is handled. It used to
7541 assume that the ASN1 AlgorithmIdentifier parameter was a PBEParameter
7542 structure. This was true for the PKCS#5 v1.5 and PKCS#12 PBE algorithms
7543 but doesn't apply to PKCS#5 v2.0 where it can be something else. Now
7544 the 'parameter' field of the AlgorithmIdentifier is passed to the
7545 underlying key generation function so it must do its own ASN1 parsing.
7546 This has also changed the EVP_PBE_CipherInit() function which now has a
7547 'parameter' argument instead of literal salt and iteration count values
7548 and the function EVP_PBE_ALGOR_CipherInit() has been deleted.
7551 *) Support for PKCS#5 v1.5 compatible password based encryption algorithms
7552 and PKCS#8 functionality. New 'pkcs8' application linked to openssl.
7553 Needed to change the PEM_STRING_EVP_PKEY value which was just "PRIVATE
7554 KEY" because this clashed with PKCS#8 unencrypted string. Since this
7555 value was just used as a "magic string" and not used directly its
7556 value doesn't matter.
7559 *) Introduce some semblance of const correctness to BN. Shame C doesn't
7563 *) "linux-sparc64" configuration (ultrapenguin).
7564 [Ray Miller <ray.miller@oucs.ox.ac.uk>]
7565 "linux-sparc" configuration.
7566 [Christian Forster <fo@hawo.stw.uni-erlangen.de>]
7568 *) config now generates no-xxx options for missing ciphers.
7571 *) Support the EBCDIC character set (work in progress).
7572 File ebcdic.c not yet included because it has a different license.
7573 [Martin Kraemer <Martin.Kraemer@MchP.Siemens.De>]
7575 *) Support BS2000/OSD-POSIX.
7576 [Martin Kraemer <Martin.Kraemer@MchP.Siemens.De>]
7578 *) Make callbacks for key generation use void * instead of char *.
7581 *) Make S/MIME samples compile (not yet tested).
7584 *) Additional typesafe stacks.
7587 *) New configuration variants "bsdi-elf-gcc" (BSD/OS 4.x).
7591 Changes between 0.9.3 and 0.9.3a [29 May 1999]
7593 *) New configuration variant "sco5-gcc".
7595 *) Updated some demos.
7596 [Sean O Riordain, Wade Scholine]
7598 *) Add missing BIO_free at exit of pkcs12 application.
7601 *) Fix memory leak in conf.c.
7604 *) Updates for Win32 to assembler version of MD5.
7607 *) Set #! path to perl in apps/der_chop to where we found it
7608 instead of using a fixed path.
7611 *) SHA library changes for irix64-mips4-cc.
7614 *) Improvements for VMS support.
7618 Changes between 0.9.2b and 0.9.3 [24 May 1999]
7620 *) Bignum library bug fix. IRIX 6 passes "make test" now!
7621 This also avoids the problems with SC4.2 and unpatched SC5.
7622 [Andy Polyakov <appro@fy.chalmers.se>]
7624 *) New functions sk_num, sk_value and sk_set to replace the previous macros.
7625 These are required because of the typesafe stack would otherwise break
7626 existing code. If old code used a structure member which used to be STACK
7627 and is now STACK_OF (for example cert in a PKCS7_SIGNED structure) with
7628 sk_num or sk_value it would produce an error because the num, data members
7629 are not present in STACK_OF. Now it just produces a warning. sk_set
7630 replaces the old method of assigning a value to sk_value
7631 (e.g. sk_value(x, i) = y) which the library used in a few cases. Any code
7632 that does this will no longer work (and should use sk_set instead) but
7633 this could be regarded as a "questionable" behaviour anyway.
7636 *) Fix most of the other PKCS#7 bugs. The "experimental" code can now
7637 correctly handle encrypted S/MIME data.
7640 *) Change type of various DES function arguments from des_cblock
7641 (which means, in function argument declarations, pointer to char)
7642 to des_cblock * (meaning pointer to array with 8 char elements),
7643 which allows the compiler to do more typechecking; it was like
7644 that back in SSLeay, but with lots of ugly casts.
7646 Introduce new type const_des_cblock.
7649 *) Reorganise the PKCS#7 library and get rid of some of the more obvious
7650 problems: find RecipientInfo structure that matches recipient certificate
7651 and initialise the ASN1 structures properly based on passed cipher.
7654 *) Belatedly make the BN tests actually check the results.
7657 *) Fix the encoding and decoding of negative ASN1 INTEGERS and conversion
7658 to and from BNs: it was completely broken. New compilation option
7659 NEG_PUBKEY_BUG to allow for some broken certificates that encode public
7660 key elements as negative integers.
7663 *) Reorganize and speed up MD5.
7664 [Andy Polyakov <appro@fy.chalmers.se>]
7667 [Richard Levitte <richard@levitte.org>]
7669 *) New option -out to asn1parse to allow the parsed structure to be
7670 output to a file. This is most useful when combined with the -strparse
7671 option to examine the output of things like OCTET STRINGS.
7674 *) Make SSL library a little more fool-proof by not requiring any longer
7675 that SSL_set_{accept,connect}_state be called before
7676 SSL_{accept,connect} may be used (SSL_set_..._state is omitted
7677 in many applications because usually everything *appeared* to work as
7678 intended anyway -- now it really works as intended).
7681 *) Move openssl.cnf out of lib/.
7684 *) Fix various things to let OpenSSL even pass ``egcc -pipe -O2 -Wall
7685 -Wshadow -Wpointer-arith -Wcast-align -Wmissing-prototypes
7686 -Wmissing-declarations -Wnested-externs -Winline'' with EGCS 1.1.2+
7687 [Ralf S. Engelschall]
7689 *) Various fixes to the EVP and PKCS#7 code. It may now be able to
7690 handle PKCS#7 enveloped data properly.
7691 [Sebastian Akerman <sak@parallelconsulting.com>, modified by Steve]
7693 *) Create a duplicate of the SSL_CTX's CERT in SSL_new instead of
7694 copying pointers. The cert_st handling is changed by this in
7695 various ways (and thus what used to be known as ctx->default_cert
7696 is now called ctx->cert, since we don't resort to s->ctx->[default_]cert
7697 any longer when s->cert does not give us what we need).
7698 ssl_cert_instantiate becomes obsolete by this change.
7699 As soon as we've got the new code right (possibly it already is?),
7700 we have solved a couple of bugs of the earlier code where s->cert
7701 was used as if it could not have been shared with other SSL structures.
7703 Note that using the SSL API in certain dirty ways now will result
7704 in different behaviour than observed with earlier library versions:
7705 Changing settings for an SSL_CTX *ctx after having done s = SSL_new(ctx)
7706 does not influence s as it used to.
7708 In order to clean up things more thoroughly, inside SSL_SESSION
7709 we don't use CERT any longer, but a new structure SESS_CERT
7710 that holds per-session data (if available); currently, this is
7711 the peer's certificate chain and, for clients, the server's certificate
7712 and temporary key. CERT holds only those values that can have
7713 meaningful defaults in an SSL_CTX.
7716 *) New function X509V3_EXT_i2d() to create an X509_EXTENSION structure
7717 from the internal representation. Various PKCS#7 fixes: remove some
7718 evil casts and set the enc_dig_alg field properly based on the signing
7722 *) Allow PKCS#12 password to be set from the command line or the
7723 environment. Let 'ca' get its config file name from the environment
7724 variables "OPENSSL_CONF" or "SSLEAY_CONF" (for consistency with 'req'
7728 *) Allow certificate policies extension to use an IA5STRING for the
7729 organization field. This is contrary to the PKIX definition but
7730 VeriSign uses it and IE5 only recognises this form. Document 'x509'
7734 *) Add PEDANTIC compiler flag to allow compilation with gcc -pedantic,
7735 without disallowing inline assembler and the like for non-pedantic builds.
7738 *) Support Borland C++ builder.
7739 [Janez Jere <jj@void.si>, modified by Ulf Möller]
7744 *) SHA-1 cleanups and performance enhancements.
7745 [Andy Polyakov <appro@fy.chalmers.se>]
7747 *) Sparc v8plus assembler for the bignum library.
7748 [Andy Polyakov <appro@fy.chalmers.se>]
7750 *) Accept any -xxx and +xxx compiler options in Configure.
7753 *) Update HPUX configuration.
7756 *) Add missing sk_<type>_unshift() function to safestack.h
7757 [Ralf S. Engelschall]
7759 *) New function SSL_CTX_use_certificate_chain_file that sets the
7760 "extra_cert"s in addition to the certificate. (This makes sense
7761 only for "PEM" format files, as chains as a whole are not
7765 *) Support verify_depth from the SSL API.
7766 x509_vfy.c had what can be considered an off-by-one-error:
7767 Its depth (which was not part of the external interface)
7768 was actually counting the number of certificates in a chain;
7769 now it really counts the depth.
7772 *) Bugfix in crypto/x509/x509_cmp.c: The SSLerr macro was used
7773 instead of X509err, which often resulted in confusing error
7774 messages since the error codes are not globally unique
7775 (e.g. an alleged error in ssl3_accept when a certificate
7776 didn't match the private key).
7778 *) New function SSL_CTX_set_session_id_context that allows to set a default
7779 value (so that you don't need SSL_set_session_id_context for each
7780 connection using the SSL_CTX).
7783 *) OAEP decoding bug fix.
7786 *) Support INSTALL_PREFIX for package builders, as proposed by
7790 *) New Configure options "threads" and "no-threads". For systems
7791 where the proper compiler options are known (currently Solaris
7792 and Linux), "threads" is the default.
7795 *) New script util/mklink.pl as a faster substitute for util/mklink.sh.
7798 *) Install various scripts to $(OPENSSLDIR)/misc, not to
7799 $(INSTALLTOP)/bin -- they shouldn't clutter directories
7800 such as /usr/local/bin.
7803 *) "make linux-shared" to build shared libraries.
7804 [Niels Poppe <niels@netbox.org>]
7806 *) New Configure option no-<cipher> (rsa, idea, rc5, ...).
7809 *) Add the PKCS#12 API documentation to openssl.txt. Preliminary support for
7810 extension adding in x509 utility.
7813 *) Remove NOPROTO sections and error code comments.
7816 *) Partial rewrite of the DEF file generator to now parse the ANSI
7820 *) New Configure options --prefix=DIR and --openssldir=DIR.
7823 *) Complete rewrite of the error code script(s). It is all now handled
7824 by one script at the top level which handles error code gathering,
7825 header rewriting and C source file generation. It should be much better
7826 than the old method: it now uses a modified version of Ulf's parser to
7827 read the ANSI prototypes in all header files (thus the old K&R definitions
7828 aren't needed for error creation any more) and do a better job of
7829 translating function codes into names. The old 'ASN1 error code imbedded
7830 in a comment' is no longer necessary and it doesn't use .err files which
7831 have now been deleted. Also the error code call doesn't have to appear all
7832 on one line (which resulted in some large lines...).
7835 *) Change #include filenames from <foo.h> to <openssl/foo.h>.
7838 *) Change behaviour of ssl2_read when facing length-0 packets: Don't return
7839 0 (which usually indicates a closed connection), but continue reading.
7842 *) Fix some race conditions.
7845 *) Add support for CRL distribution points extension. Add Certificate
7846 Policies and CRL distribution points documentation.
7849 *) Move the autogenerated header file parts to crypto/opensslconf.h.
7852 *) Fix new 56-bit DES export ciphersuites: they were using 7 bytes instead of
7853 8 of keying material. Merlin has also confirmed interop with this fix
7854 between OpenSSL and Baltimore C/SSL 2.0 and J/SSL 2.0.
7855 [Merlin Hughes <merlin@baltimore.ie>]
7857 *) Fix lots of warnings.
7858 [Richard Levitte <levitte@stacken.kth.se>]
7860 *) In add_cert_dir() in crypto/x509/by_dir.c, break out of the loop if
7861 the directory spec didn't end with a LIST_SEPARATOR_CHAR.
7862 [Richard Levitte <levitte@stacken.kth.se>]
7864 *) Fix problems with sizeof(long) == 8.
7865 [Andy Polyakov <appro@fy.chalmers.se>]
7867 *) Change functions to ANSI C.
7870 *) Fix typos in error codes.
7871 [Martin Kraemer <Martin.Kraemer@MchP.Siemens.De>, Ulf Möller]
7873 *) Remove defunct assembler files from Configure.
7876 *) SPARC v8 assembler BIGNUM implementation.
7877 [Andy Polyakov <appro@fy.chalmers.se>]
7879 *) Support for Certificate Policies extension: both print and set.
7880 Various additions to support the r2i method this uses.
7883 *) A lot of constification, and fix a bug in X509_NAME_oneline() that could
7884 return a const string when you are expecting an allocated buffer.
7887 *) Add support for ASN1 types UTF8String and VISIBLESTRING, also the CHOICE
7888 types DirectoryString and DisplayText.
7891 *) Add code to allow r2i extensions to access the configuration database,
7892 add an LHASH database driver and add several ctx helper functions.
7895 *) Fix an evil bug in bn_expand2() which caused various BN functions to
7896 fail when they extended the size of a BIGNUM.
7899 *) Various utility functions to handle SXNet extension. Modify mkdef.pl to
7900 support typesafe stack.
7903 *) Fix typo in SSL_[gs]et_options().
7904 [Nils Frostberg <nils@medcom.se>]
7906 *) Delete various functions and files that belonged to the (now obsolete)
7907 old X509V3 handling code.
7910 *) New Configure option "rsaref".
7913 *) Don't auto-generate pem.h.
7916 *) Introduce type-safe ASN.1 SETs.
7919 *) Convert various additional casted stacks to type-safe STACK_OF() variants.
7920 [Ben Laurie, Ralf S. Engelschall, Steve Henson]
7922 *) Introduce type-safe STACKs. This will almost certainly break lots of code
7923 that links with OpenSSL (well at least cause lots of warnings), but fear
7924 not: the conversion is trivial, and it eliminates loads of evil casts. A
7925 few STACKed things have been converted already. Feel free to convert more.
7926 In the fullness of time, I'll do away with the STACK type altogether.
7929 *) Add `openssl ca -revoke <certfile>' facility which revokes a certificate
7930 specified in <certfile> by updating the entry in the index.txt file.
7931 This way one no longer has to edit the index.txt file manually for
7932 revoking a certificate. The -revoke option does the gory details now.
7933 [Massimiliano Pala <madwolf@openca.org>, Ralf S. Engelschall]
7935 *) Fix `openssl crl -noout -text' combination where `-noout' killed the
7936 `-text' option at all and this way the `-noout -text' combination was
7937 inconsistent in `openssl crl' with the friends in `openssl x509|rsa|dsa'.
7938 [Ralf S. Engelschall]
7940 *) Make sure a corresponding plain text error message exists for the
7941 X509_V_ERR_CERT_REVOKED/23 error number which can occur when a
7942 verify callback function determined that a certificate was revoked.
7943 [Ralf S. Engelschall]
7945 *) Bugfix: In test/testenc, don't test "openssl <cipher>" for
7946 ciphers that were excluded, e.g. by -DNO_IDEA. Also, test
7947 all available cipers including rc5, which was forgotten until now.
7948 In order to let the testing shell script know which algorithms
7949 are available, a new (up to now undocumented) command
7950 "openssl list-cipher-commands" is used.
7953 *) Bugfix: s_client occasionally would sleep in select() when
7954 it should have checked SSL_pending() first.
7957 *) New functions DSA_do_sign and DSA_do_verify to provide access to
7958 the raw DSA values prior to ASN.1 encoding.
7961 *) Tweaks to Configure
7962 [Niels Poppe <niels@netbox.org>]
7964 *) Add support for PKCS#5 v2.0 ASN1 PBES2 structures. No other support,
7968 *) New variables $(RANLIB) and $(PERL) in the Makefiles.
7971 *) New config option to avoid instructions that are illegal on the 80386.
7972 The default code is faster, but requires at least a 486.
7975 *) Got rid of old SSL2_CLIENT_VERSION (inconsistently used) and
7976 SSL2_SERVER_VERSION (not used at all) macros, which are now the
7977 same as SSL2_VERSION anyway.
7980 *) New "-showcerts" option for s_client.
7983 *) Still more PKCS#12 integration. Add pkcs12 application to openssl
7984 application. Various cleanups and fixes.
7987 *) More PKCS#12 integration. Add new pkcs12 directory with Makefile.ssl and
7988 modify error routines to work internally. Add error codes and PBE init
7989 to library startup routines.
7992 *) Further PKCS#12 integration. Added password based encryption, PKCS#8 and
7993 packing functions to asn1 and evp. Changed function names and error
7994 codes along the way.
7997 *) PKCS12 integration: and so it begins... First of several patches to
7998 slowly integrate PKCS#12 functionality into OpenSSL. Add PKCS#12
7999 objects to objects.h
8002 *) Add a new 'indent' option to some X509V3 extension code. Initial ASN1
8003 and display support for Thawte strong extranet extension.
8006 *) Add LinuxPPC support.
8007 [Jeff Dubrule <igor@pobox.org>]
8009 *) Get rid of redundant BN file bn_mulw.c, and rename bn_div64 to
8010 bn_div_words in alpha.s.
8011 [Hannes Reinecke <H.Reinecke@hw.ac.uk> and Ben Laurie]
8013 *) Make sure the RSA OAEP test is skipped under -DRSAref because
8014 OAEP isn't supported when OpenSSL is built with RSAref.
8015 [Ulf Moeller <ulf@fitug.de>]
8017 *) Move definitions of IS_SET/IS_SEQUENCE inside crypto/asn1/asn1.h
8018 so they no longer are missing under -DNOPROTO.
8019 [Soren S. Jorvang <soren@t.dk>]
8022 Changes between 0.9.1c and 0.9.2b [22 Mar 1999]
8024 *) Make SSL_get_peer_cert_chain() work in servers. Unfortunately, it still
8025 doesn't work when the session is reused. Coming soon!
8028 *) Fix a security hole, that allows sessions to be reused in the wrong
8029 context thus bypassing client cert protection! All software that uses
8030 client certs and session caches in multiple contexts NEEDS PATCHING to
8031 allow session reuse! A fuller solution is in the works.
8032 [Ben Laurie, problem pointed out by Holger Reif, Bodo Moeller (and ???)]
8034 *) Some more source tree cleanups (removed obsolete files
8035 crypto/bf/asm/bf586.pl, test/test.txt and crypto/sha/asm/f.s; changed
8036 permission on "config" script to be executable) and a fix for the INSTALL
8038 [Ulf Moeller <ulf@fitug.de>]
8040 *) Remove some legacy and erroneous uses of malloc, free instead of
8042 [Lennart Bang <lob@netstream.se>, with minor changes by Steve]
8044 *) Make rsa_oaep_test return non-zero on error.
8045 [Ulf Moeller <ulf@fitug.de>]
8047 *) Add support for native Solaris shared libraries. Configure
8048 solaris-sparc-sc4-pic, make, then run shlib/solaris-sc4.sh. It'd be nice
8049 if someone would make that last step automatic.
8050 [Matthias Loepfe <Matthias.Loepfe@AdNovum.CH>]
8052 *) ctx_size was not built with the right compiler during "make links". Fixed.
8055 *) Change the meaning of 'ALL' in the cipher list. It now means "everything
8056 except NULL ciphers". This means the default cipher list will no longer
8057 enable NULL ciphers. They need to be specifically enabled e.g. with
8058 the string "DEFAULT:eNULL".
8061 *) Fix to RSA private encryption routines: if p < q then it would
8062 occasionally produce an invalid result. This will only happen with
8063 externally generated keys because OpenSSL (and SSLeay) ensure p > q.
8066 *) Be less restrictive and allow also `perl util/perlpath.pl
8067 /path/to/bin/perl' in addition to `perl util/perlpath.pl /path/to/bin',
8068 because this way one can also use an interpreter named `perl5' (which is
8069 usually the name of Perl 5.xxx on platforms where an Perl 4.x is still
8070 installed as `perl').
8071 [Matthias Loepfe <Matthias.Loepfe@adnovum.ch>]
8073 *) Let util/clean-depend.pl work also with older Perl 5.00x versions.
8074 [Matthias Loepfe <Matthias.Loepfe@adnovum.ch>]
8076 *) Fix Makefile.org so CC,CFLAG etc are passed to 'make links' add
8077 advapi32.lib to Win32 build and change the pem test comparision
8078 to fc.exe (thanks to Ulrich Kroener <kroneru@yahoo.com> for the
8079 suggestion). Fix misplaced ASNI prototypes and declarations in evp.h
8080 and crypto/des/ede_cbcm_enc.c.
8083 *) DES quad checksum was broken on big-endian architectures. Fixed.
8086 *) Comment out two functions in bio.h that aren't implemented. Fix up the
8087 Win32 test batch file so it (might) work again. The Win32 test batch file
8088 is horrible: I feel ill....
8091 *) Move various #ifdefs around so NO_SYSLOG, NO_DIRENT etc are now selected
8092 in e_os.h. Audit of header files to check ANSI and non ANSI
8093 sections: 10 functions were absent from non ANSI section and not exported
8094 from Windows DLLs. Fixed up libeay.num for new functions.
8097 *) Make `openssl version' output lines consistent.
8098 [Ralf S. Engelschall]
8100 *) Fix Win32 symbol export lists for BIO functions: Added
8101 BIO_get_ex_new_index, BIO_get_ex_num, BIO_get_ex_data and BIO_set_ex_data
8102 to ms/libeay{16,32}.def.
8103 [Ralf S. Engelschall]
8105 *) Second round of fixing the OpenSSL perl/ stuff. It now at least compiled
8106 fine under Unix and passes some trivial tests I've now added. But the
8107 whole stuff is horribly incomplete, so a README.1ST with a disclaimer was
8108 added to make sure no one expects that this stuff really works in the
8109 OpenSSL 0.9.2 release. Additionally I've started to clean the XS sources
8110 up and fixed a few little bugs and inconsistencies in OpenSSL.{pm,xs} and
8112 [Ralf S. Engelschall]
8114 *) Fix the generation of two part addresses in perl.
8115 [Kenji Miyake <kenji@miyake.org>, integrated by Ben Laurie]
8117 *) Add config entry for Linux on MIPS.
8118 [John Tobey <jtobey@channel1.com>]
8120 *) Make links whenever Configure is run, unless we are on Windoze.
8123 *) Permit extensions to be added to CRLs using crl_section in openssl.cnf.
8124 Currently only issuerAltName and AuthorityKeyIdentifier make any sense
8128 *) Add a useful kludge to allow package maintainers to specify compiler and
8129 other platforms details on the command line without having to patch the
8130 Configure script everytime: One now can use ``perl Configure
8131 <id>:<details>'', i.e. platform ids are allowed to have details appended
8132 to them (seperated by colons). This is treated as there would be a static
8133 pre-configured entry in Configure's %table under key <id> with value
8134 <details> and ``perl Configure <id>'' is called. So, when you want to
8135 perform a quick test-compile under FreeBSD 3.1 with pgcc and without
8136 assembler stuff you can use ``perl Configure "FreeBSD-elf:pgcc:-O6:::"''
8137 now, which overrides the FreeBSD-elf entry on-the-fly.
8138 [Ralf S. Engelschall]
8140 *) Disable new TLS1 ciphersuites by default: they aren't official yet.
8143 *) Allow DSO flags like -fpic, -fPIC, -KPIC etc. to be specified
8144 on the `perl Configure ...' command line. This way one can compile
8145 OpenSSL libraries with Position Independent Code (PIC) which is needed
8146 for linking it into DSOs.
8147 [Ralf S. Engelschall]
8149 *) Remarkably, export ciphers were totally broken and no-one had noticed!
8153 *) Cleaned up the LICENSE document: The official contact for any license
8154 questions now is the OpenSSL core team under openssl-core@openssl.org.
8155 And add a paragraph about the dual-license situation to make sure people
8156 recognize that _BOTH_ the OpenSSL license _AND_ the SSLeay license apply
8157 to the OpenSSL toolkit.
8158 [Ralf S. Engelschall]
8160 *) General source tree makefile cleanups: Made `making xxx in yyy...'
8161 display consistent in the source tree and replaced `/bin/rm' by `rm'.
8162 Additonally cleaned up the `make links' target: Remove unnecessary
8163 semicolons, subsequent redundant removes, inline point.sh into mklink.sh
8164 to speed processing and no longer clutter the display with confusing
8165 stuff. Instead only the actually done links are displayed.
8166 [Ralf S. Engelschall]
8168 *) Permit null encryption ciphersuites, used for authentication only. It used
8169 to be necessary to set the preprocessor define SSL_ALLOW_ENULL to do this.
8170 It is now necessary to set SSL_FORBID_ENULL to prevent the use of null
8174 *) Add a bunch of fixes to the PKCS#7 stuff. It used to sometimes reorder
8175 signed attributes when verifying signatures (this would break them),
8176 the detached data encoding was wrong and public keys obtained using
8177 X509_get_pubkey() weren't freed.
8180 *) Add text documentation for the BUFFER functions. Also added a work around
8181 to a Win95 console bug. This was triggered by the password read stuff: the
8182 last character typed gets carried over to the next fread(). If you were
8183 generating a new cert request using 'req' for example then the last
8184 character of the passphrase would be CR which would then enter the first
8188 *) Added the new `Includes OpenSSL Cryptography Software' button as
8189 doc/openssl_button.{gif,html} which is similar in style to the old SSLeay
8190 button and can be used by applications based on OpenSSL to show the
8191 relationship to the OpenSSL project.
8192 [Ralf S. Engelschall]
8194 *) Remove confusing variables in function signatures in files
8195 ssl/ssl_lib.c and ssl/ssl.h.
8196 [Lennart Bong <lob@kulthea.stacken.kth.se>]
8198 *) Don't install bss_file.c under PREFIX/include/
8199 [Lennart Bong <lob@kulthea.stacken.kth.se>]
8201 *) Get the Win32 compile working again. Modify mkdef.pl so it can handle
8202 functions that return function pointers and has support for NT specific
8203 stuff. Fix mk1mf.pl and VC-32.pl to support NT differences also. Various
8204 #ifdef WIN32 and WINNTs sprinkled about the place and some changes from
8205 unsigned to signed types: this was killing the Win32 compile.
8208 *) Add new certificate file to stack functions,
8209 SSL_add_dir_cert_subjects_to_stack() and
8210 SSL_add_file_cert_subjects_to_stack(). These largely supplant
8211 SSL_load_client_CA_file(), and can be used to add multiple certs easily
8212 to a stack (usually this is then handed to SSL_CTX_set_client_CA_list()).
8213 This means that Apache-SSL and similar packages don't have to mess around
8214 to add as many CAs as they want to the preferred list.
8217 *) Experiment with doxygen documentation. Currently only partially applied to
8219 See http://www.stack.nl/~dimitri/doxygen/index.html, and run doxygen with
8220 openssl.doxy as the configuration file.
8223 *) Get rid of remaining C++-style comments which strict C compilers hate.
8224 [Ralf S. Engelschall, pointed out by Carlos Amengual]
8226 *) Changed BN_RECURSION in bn_mont.c to BN_RECURSION_MONT so it is not
8227 compiled in by default: it has problems with large keys.
8230 *) Add a bunch of SSL_xxx() functions for configuring the temporary RSA and
8231 DH private keys and/or callback functions which directly correspond to
8232 their SSL_CTX_xxx() counterparts but work on a per-connection basis. This
8233 is needed for applications which have to configure certificates on a
8234 per-connection basis (e.g. Apache+mod_ssl) instead of a per-context basis
8236 For the RSA certificate situation is makes no difference, but
8237 for the DSA certificate situation this fixes the "no shared cipher"
8238 problem where the OpenSSL cipher selection procedure failed because the
8239 temporary keys were not overtaken from the context and the API provided
8240 no way to reconfigure them.
8241 The new functions now let applications reconfigure the stuff and they
8242 are in detail: SSL_need_tmp_RSA, SSL_set_tmp_rsa, SSL_set_tmp_dh,
8243 SSL_set_tmp_rsa_callback and SSL_set_tmp_dh_callback. Additionally a new
8244 non-public-API function ssl_cert_instantiate() is used as a helper
8245 function and also to reduce code redundancy inside ssl_rsa.c.
8246 [Ralf S. Engelschall]
8248 *) Move s_server -dcert and -dkey options out of the undocumented feature
8249 area because they are useful for the DSA situation and should be
8250 recognized by the users.
8251 [Ralf S. Engelschall]
8253 *) Fix the cipher decision scheme for export ciphers: the export bits are
8254 *not* within SSL_MKEY_MASK or SSL_AUTH_MASK, they are within
8255 SSL_EXP_MASK. So, the original variable has to be used instead of the
8256 already masked variable.
8257 [Richard Levitte <levitte@stacken.kth.se>]
8259 *) Fix 'port' variable from `int' to `unsigned int' in crypto/bio/b_sock.c
8260 [Richard Levitte <levitte@stacken.kth.se>]
8262 *) Change type of another md_len variable in pk7_doit.c:PKCS7_dataFinal()
8263 from `int' to `unsigned int' because it's a length and initialized by
8264 EVP_DigestFinal() which expects an `unsigned int *'.
8265 [Richard Levitte <levitte@stacken.kth.se>]
8267 *) Don't hard-code path to Perl interpreter on shebang line of Configure
8268 script. Instead use the usual Shell->Perl transition trick.
8269 [Ralf S. Engelschall]
8271 *) Make `openssl x509 -noout -modulus' functional also for DSA certificates
8272 (in addition to RSA certificates) to match the behaviour of `openssl dsa
8273 -noout -modulus' as it's already the case for `openssl rsa -noout
8274 -modulus'. For RSA the -modulus is the real "modulus" while for DSA
8275 currently the public key is printed (a decision which was already done by
8276 `openssl dsa -modulus' in the past) which serves a similar purpose.
8277 Additionally the NO_RSA no longer completely removes the whole -modulus
8278 option; it now only avoids using the RSA stuff. Same applies to NO_DSA
8280 [Ralf S. Engelschall]
8282 *) Add Arne Ansper's reliable BIO - this is an encrypted, block-digested
8283 BIO. See the source (crypto/evp/bio_ok.c) for more info.
8284 [Arne Ansper <arne@ats.cyber.ee>]
8286 *) Dump the old yucky req code that tried (and failed) to allow raw OIDs
8287 to be added. Now both 'req' and 'ca' can use new objects defined in the
8291 *) Add cool BIO that does syslog (or event log on NT).
8292 [Arne Ansper <arne@ats.cyber.ee>, integrated by Ben Laurie]
8294 *) Add support for new TLS ciphersuites, TLS_RSA_EXPORT56_WITH_RC4_56_MD5,
8295 TLS_RSA_EXPORT56_WITH_RC2_CBC_56_MD5 and
8296 TLS_RSA_EXPORT56_WITH_DES_CBC_SHA, as specified in "56-bit Export Cipher
8297 Suites For TLS", draft-ietf-tls-56-bit-ciphersuites-00.txt.
8300 *) Add preliminary config info for new extension code.
8303 *) Make RSA_NO_PADDING really use no padding.
8304 [Ulf Moeller <ulf@fitug.de>]
8306 *) Generate errors when private/public key check is done.
8309 *) Overhaul for 'crl' utility. New function X509_CRL_print. Partial support
8310 for some CRL extensions and new objects added.
8313 *) Really fix the ASN1 IMPLICIT bug this time... Partial support for private
8314 key usage extension and fuller support for authority key id.
8317 *) Add OAEP encryption for the OpenSSL crypto library. OAEP is the improved
8318 padding method for RSA, which is recommended for new applications in PKCS
8319 #1 v2.0 (RFC 2437, October 1998).
8320 OAEP (Optimal Asymmetric Encryption Padding) has better theoretical
8321 foundations than the ad-hoc padding used in PKCS #1 v1.5. It is secure
8322 against Bleichbacher's attack on RSA.
8323 [Ulf Moeller <ulf@fitug.de>, reformatted, corrected and integrated by
8326 *) Updates to the new SSL compression code
8327 [Eric A. Young, (from changes to C2Net SSLeay, integrated by Mark Cox)]
8329 *) Fix so that the version number in the master secret, when passed
8330 via RSA, checks that if TLS was proposed, but we roll back to SSLv3
8331 (because the server will not accept higher), that the version number
8332 is 0x03,0x01, not 0x03,0x00
8333 [Eric A. Young, (from changes to C2Net SSLeay, integrated by Mark Cox)]
8335 *) Run extensive memory leak checks on SSL apps. Fixed *lots* of memory
8336 leaks in ssl/ relating to new X509_get_pubkey() behaviour. Also fixes
8337 in apps/ and an unrelated leak in crypto/dsa/dsa_vrf.c
8340 *) Support for RAW extensions where an arbitrary extension can be
8341 created by including its DER encoding. See apps/openssl.cnf for
8345 *) Make sure latest Perl versions don't interpret some generated C array
8346 code as Perl array code in the crypto/err/err_genc.pl script.
8347 [Lars Weber <3weber@informatik.uni-hamburg.de>]
8349 *) Modify ms/do_ms.bat to not generate assembly language makefiles since
8350 not many people have the assembler. Various Win32 compilation fixes and
8351 update to the INSTALL.W32 file with (hopefully) more accurate Win32
8355 *) Modify configure script 'Configure' to automatically create crypto/date.h
8356 file under Win32 and also build pem.h from pem.org. New script
8357 util/mkfiles.pl to create the MINFO file on environments that can't do a
8358 'make files': perl util/mkfiles.pl >MINFO should work.
8361 *) Major rework of DES function declarations, in the pursuit of correctness
8362 and purity. As a result, many evil casts evaporated, and some weirdness,
8363 too. You may find this causes warnings in your code. Zapping your evil
8364 casts will probably fix them. Mostly.
8367 *) Fix for a typo in asn1.h. Bug fix to object creation script
8368 obj_dat.pl. It considered a zero in an object definition to mean
8369 "end of object": none of the objects in objects.h have any zeros
8370 so it wasn't spotted.
8371 [Steve Henson, reported by Erwann ABALEA <eabalea@certplus.com>]
8373 *) Add support for Triple DES Cipher Block Chaining with Output Feedback
8374 Masking (CBCM). In the absence of test vectors, the best I have been able
8375 to do is check that the decrypt undoes the encrypt, so far. Send me test
8376 vectors if you have them.
8379 *) Correct calculation of key length for export ciphers (too much space was
8380 allocated for null ciphers). This has not been tested!
8383 *) Modifications to the mkdef.pl for Win32 DEF file creation. The usage
8384 message is now correct (it understands "crypto" and "ssl" on its
8385 command line). There is also now an "update" option. This will update
8386 the util/ssleay.num and util/libeay.num files with any new functions.
8388 perl util/mkdef.pl crypto ssl update
8389 it will update them.
8392 *) Overhauled the Perl interface (perl/*):
8393 - ported BN stuff to OpenSSL's different BN library
8394 - made the perl/ source tree CVS-aware
8395 - renamed the package from SSLeay to OpenSSL (the files still contain
8396 their history because I've copied them in the repository)
8397 - removed obsolete files (the test scripts will be replaced
8398 by better Test::Harness variants in the future)
8399 [Ralf S. Engelschall]
8401 *) First cut for a very conservative source tree cleanup:
8402 1. merge various obsolete readme texts into doc/ssleay.txt
8403 where we collect the old documents and readme texts.
8404 2. remove the first part of files where I'm already sure that we no
8405 longer need them because of three reasons: either they are just temporary
8406 files which were left by Eric or they are preserved original files where
8407 I've verified that the diff is also available in the CVS via "cvs diff
8408 -rSSLeay_0_8_1b" or they were renamed (as it was definitely the case for
8409 the crypto/md/ stuff).
8410 [Ralf S. Engelschall]
8412 *) More extension code. Incomplete support for subject and issuer alt
8413 name, issuer and authority key id. Change the i2v function parameters
8414 and add an extra 'crl' parameter in the X509V3_CTX structure: guess
8415 what that's for :-) Fix to ASN1 macro which messed up
8416 IMPLICIT tag and add f_enum.c which adds a2i, i2a for ENUMERATED.
8419 *) Preliminary support for ENUMERATED type. This is largely copied from the
8423 *) Add new function, EVP_MD_CTX_copy() to replace frequent use of memcpy.
8424 [Eric A. Young, (from changes to C2Net SSLeay, integrated by Mark Cox)]
8426 *) Make sure `make rehash' target really finds the `openssl' program.
8427 [Ralf S. Engelschall, Matthias Loepfe <Matthias.Loepfe@adnovum.ch>]
8429 *) Squeeze another 7% of speed out of MD5 assembler, at least on a P2. I'd
8430 like to hear about it if this slows down other processors.
8433 *) Add CygWin32 platform information to Configure script.
8434 [Alan Batie <batie@aahz.jf.intel.com>]
8436 *) Fixed ms/32all.bat script: `no_asm' -> `no-asm'
8437 [Rainer W. Gerling <gerling@mpg-gv.mpg.de>]
8439 *) New program nseq to manipulate netscape certificate sequences
8442 *) Modify crl2pkcs7 so it supports multiple -certfile arguments. Fix a
8446 *) Fixes to BN code. Previously the default was to define BN_RECURSION
8447 but the BN code had some problems that would cause failures when
8448 doing certificate verification and some other functions.
8449 [Eric A. Young, (from changes to C2Net SSLeay, integrated by Mark Cox)]
8451 *) Add ASN1 and PEM code to support netscape certificate sequences.
8454 *) Add ASN1 and PEM code to support netscape certificate sequences.
8457 *) Add several PKIX and private extended key usage OIDs.
8460 *) Modify the 'ca' program to handle the new extension code. Modify
8461 openssl.cnf for new extension format, add comments.
8464 *) More X509 V3 changes. Fix typo in v3_bitstr.c. Add support to 'req'
8465 and add a sample to openssl.cnf so req -x509 now adds appropriate
8469 *) Continued X509 V3 changes. Add to other makefiles, integrate with the
8470 error code, add initial support to X509_print() and x509 application.
8473 *) Takes a deep breath and start addding X509 V3 extension support code. Add
8474 files in crypto/x509v3. Move original stuff to crypto/x509v3/old. All this
8475 stuff is currently isolated and isn't even compiled yet.
8478 *) Continuing patches for GeneralizedTime. Fix up certificate and CRL
8479 ASN1 to use ASN1_TIME and modify print routines to use ASN1_TIME_print.
8480 Removed the versions check from X509 routines when loading extensions:
8481 this allows certain broken certificates that don't set the version
8482 properly to be processed.
8485 *) Deal with irritating shit to do with dependencies, in YAAHW (Yet Another
8486 Ad Hoc Way) - Makefile.ssls now all contain local dependencies, which
8487 can still be regenerated with "make depend".
8490 *) Spelling mistake in C version of CAST-128.
8491 [Ben Laurie, reported by Jeremy Hylton <jeremy@cnri.reston.va.us>]
8493 *) Changes to the error generation code. The perl script err-code.pl
8494 now reads in the old error codes and retains the old numbers, only
8495 adding new ones if necessary. It also only changes the .err files if new
8496 codes are added. The makefiles have been modified to only insert errors
8497 when needed (to avoid needlessly modifying header files). This is done
8498 by only inserting errors if the .err file is newer than the auto generated
8499 C file. To rebuild all the error codes from scratch (the old behaviour)
8500 either modify crypto/Makefile.ssl to pass the -regen flag to err_code.pl
8501 or delete all the .err files.
8504 *) CAST-128 was incorrectly implemented for short keys. The C version has
8505 been fixed, but is untested. The assembler versions are also fixed, but
8506 new assembler HAS NOT BEEN GENERATED FOR WIN32 - the Makefile needs fixing
8507 to regenerate it if needed.
8508 [Ben Laurie, reported (with fix for C version) by Jun-ichiro itojun
8509 Hagino <itojun@kame.net>]
8511 *) File was opened incorrectly in randfile.c.
8512 [Ulf Möller <ulf@fitug.de>]
8514 *) Beginning of support for GeneralizedTime. d2i, i2d, check and print
8515 functions. Also ASN1_TIME suite which is a CHOICE of UTCTime or
8516 GeneralizedTime. ASN1_TIME is the proper type used in certificates et
8517 al: it's just almost always a UTCTime. Note this patch adds new error
8518 codes so do a "make errors" if there are problems.
8521 *) Correct Linux 1 recognition in config.
8522 [Ulf Möller <ulf@fitug.de>]
8524 *) Remove pointless MD5 hash when using DSA keys in ca.
8525 [Anonymous <nobody@replay.com>]
8527 *) Generate an error if given an empty string as a cert directory. Also
8528 generate an error if handed NULL (previously returned 0 to indicate an
8529 error, but didn't set one).
8530 [Ben Laurie, reported by Anonymous <nobody@replay.com>]
8532 *) Add prototypes to SSL methods. Make SSL_write's buffer const, at last.
8535 *) Fix the dummy function BN_ref_mod_exp() in rsaref.c to have the correct
8536 parameters. This was causing a warning which killed off the Win32 compile.
8539 *) Remove C++ style comments from crypto/bn/bn_local.h.
8540 [Neil Costigan <neil.costigan@celocom.com>]
8542 *) The function OBJ_txt2nid was broken. It was supposed to return a nid
8543 based on a text string, looking up short and long names and finally
8544 "dot" format. The "dot" format stuff didn't work. Added new function
8545 OBJ_txt2obj to do the same but return an ASN1_OBJECT and rewrote
8546 OBJ_txt2nid to use it. OBJ_txt2obj can also return objects even if the
8547 OID is not part of the table.
8550 *) Add prototypes to X509 lookup/verify methods, fixing a bug in
8551 X509_LOOKUP_by_alias().
8554 *) Sort openssl functions by name.
8557 *) Get the gendsa program working (hopefully) and add it to app list. Remove
8558 encryption from sample DSA keys (in case anyone is interested the password
8562 *) Make _all_ *_free functions accept a NULL pointer.
8563 [Frans Heymans <fheymans@isaserver.be>]
8565 *) If a DH key is generated in s3_srvr.c, don't blow it by trying to use
8567 [Anonymous <nobody@replay.com>]
8569 *) s_server should send the CAfile as acceptable CAs, not its own cert.
8570 [Bodo Moeller <3moeller@informatik.uni-hamburg.de>]
8572 *) Don't blow it for numeric -newkey arguments to apps/req.
8573 [Bodo Moeller <3moeller@informatik.uni-hamburg.de>]
8575 *) Temp key "for export" tests were wrong in s3_srvr.c.
8576 [Anonymous <nobody@replay.com>]
8578 *) Add prototype for temp key callback functions
8579 SSL_CTX_set_tmp_{rsa,dh}_callback().
8582 *) Make DH_free() tolerate being passed a NULL pointer (like RSA_free() and
8583 DSA_free()). Make X509_PUBKEY_set() check for errors in d2i_PublicKey().
8586 *) X509_name_add_entry() freed the wrong thing after an error.
8587 [Arne Ansper <arne@ats.cyber.ee>]
8589 *) rsa_eay.c would attempt to free a NULL context.
8590 [Arne Ansper <arne@ats.cyber.ee>]
8592 *) BIO_s_socket() had a broken should_retry() on Windoze.
8593 [Arne Ansper <arne@ats.cyber.ee>]
8595 *) BIO_f_buffer() didn't pass on BIO_CTRL_FLUSH.
8596 [Arne Ansper <arne@ats.cyber.ee>]
8598 *) Make sure the already existing X509_STORE->depth variable is initialized
8599 in X509_STORE_new(), but document the fact that this variable is still
8600 unused in the certificate verification process.
8601 [Ralf S. Engelschall]
8603 *) Fix the various library and apps files to free up pkeys obtained from
8604 X509_PUBKEY_get() et al. Also allow x509.c to handle netscape extensions.
8607 *) Fix reference counting in X509_PUBKEY_get(). This makes
8608 demos/maurice/example2.c work, amongst others, probably.
8609 [Steve Henson and Ben Laurie]
8611 *) First cut of a cleanup for apps/. First the `ssleay' program is now named
8612 `openssl' and second, the shortcut symlinks for the `openssl <command>'
8613 are no longer created. This way we have a single and consistent command
8614 line interface `openssl <command>', similar to `cvs <command>'.
8615 [Ralf S. Engelschall, Paul Sutton and Ben Laurie]
8617 *) ca.c: move test for DSA keys inside #ifndef NO_DSA. Make pubkey
8618 BIT STRING wrapper always have zero unused bits.
8621 *) Add CA.pl, perl version of CA.sh, add extended key usage OID.
8624 *) Make the top-level INSTALL documentation easier to understand.
8627 *) Makefiles updated to exit if an error occurs in a sub-directory
8628 make (including if user presses ^C) [Paul Sutton]
8630 *) Make Montgomery context stuff explicit in RSA data structure.
8633 *) Fix build order of pem and err to allow for generated pem.h.
8636 *) Fix renumbering bug in X509_NAME_delete_entry().
8639 *) Enhanced the err-ins.pl script so it makes the error library number
8640 global and can add a library name. This is needed for external ASN1 and
8641 other error libraries.
8644 *) Fixed sk_insert which never worked properly.
8647 *) Fix ASN1 macros so they can handle indefinite length construted
8648 EXPLICIT tags. Some non standard certificates use these: they can now
8652 *) Merged the various old/obsolete SSLeay documentation files (doc/xxx.doc)
8653 into a single doc/ssleay.txt bundle. This way the information is still
8654 preserved but no longer messes up this directory. Now it's new room for
8655 the new set of documenation files.
8656 [Ralf S. Engelschall]
8658 *) SETs were incorrectly DER encoded. This was a major pain, because they
8659 shared code with SEQUENCEs, which aren't coded the same. This means that
8660 almost everything to do with SETs or SEQUENCEs has either changed name or
8661 number of arguments.
8662 [Ben Laurie, based on a partial fix by GP Jayan <gp@nsj.co.jp>]
8664 *) Fix test data to work with the above.
8667 *) Fix the RSA header declarations that hid a bug I fixed in 0.9.0b but
8668 was already fixed by Eric for 0.9.1 it seems.
8669 [Ben Laurie - pointed out by Ulf Möller <ulf@fitug.de>]
8671 *) Autodetect FreeBSD3.
8674 *) Fix various bugs in Configure. This affects the following platforms:
8678 unixware-2.0-pentium
8682 *) Eliminate generated files from CVS. Reorder tests to regenerate files
8683 before they are needed.
8686 *) Generate Makefile.ssl from Makefile.org (to keep CVS happy).
8690 Changes between 0.9.1b and 0.9.1c [23-Dec-1998]
8692 *) Added OPENSSL_VERSION_NUMBER to crypto/crypto.h and
8693 changed SSLeay to OpenSSL in version strings.
8694 [Ralf S. Engelschall]
8696 *) Some fixups to the top-level documents.
8699 *) Fixed the nasty bug where rsaref.h was not found under compile-time
8700 because the symlink to include/ was missing.
8701 [Ralf S. Engelschall]
8703 *) Incorporated the popular no-RSA/DSA-only patches
8704 which allow to compile a RSA-free SSLeay.
8705 [Andrew Cooke / Interrader Ldt., Ralf S. Engelschall]
8707 *) Fixed nasty rehash problem under `make -f Makefile.ssl links'
8708 when "ssleay" is still not found.
8709 [Ralf S. Engelschall]
8711 *) Added more platforms to Configure: Cray T3E, HPUX 11,
8712 [Ralf S. Engelschall, Beckmann <beckman@acl.lanl.gov>]
8714 *) Updated the README file.
8715 [Ralf S. Engelschall]
8717 *) Added various .cvsignore files in the CVS repository subdirs
8718 to make a "cvs update" really silent.
8719 [Ralf S. Engelschall]
8721 *) Recompiled the error-definition header files and added
8722 missing symbols to the Win32 linker tables.
8723 [Ralf S. Engelschall]
8725 *) Cleaned up the top-level documents;
8726 o new files: CHANGES and LICENSE
8727 o merged VERSION, HISTORY* and README* files a CHANGES.SSLeay
8728 o merged COPYRIGHT into LICENSE
8729 o removed obsolete TODO file
8730 o renamed MICROSOFT to INSTALL.W32
8731 [Ralf S. Engelschall]
8733 *) Removed dummy files from the 0.9.1b source tree:
8734 crypto/asn1/x crypto/bio/cd crypto/bio/fg crypto/bio/grep crypto/bio/vi
8735 crypto/bn/asm/......add.c crypto/bn/asm/a.out crypto/dsa/f crypto/md5/f
8736 crypto/pem/gmon.out crypto/perlasm/f crypto/pkcs7/build crypto/rsa/f
8737 crypto/sha/asm/f crypto/threads/f ms/zzz ssl/f ssl/f.mak test/f
8738 util/f.mak util/pl/f util/pl/f.mak crypto/bf/bf_locl.old apps/f
8739 [Ralf S. Engelschall]
8741 *) Added various platform portability fixes.
8744 *) The Genesis of the OpenSSL rpject:
8745 We start with the latest (unreleased) SSLeay version 0.9.1b which Eric A.
8746 Young and Tim J. Hudson created while they were working for C2Net until
8748 [The OpenSSL Project]
8751 Changes between 0.9.0b and 0.9.1b [not released]
8753 *) Updated a few CA certificates under certs/
8756 *) Changed some BIGNUM api stuff.
8759 *) Various platform ports: OpenBSD, Ultrix, IRIX 64bit, NetBSD,
8760 DGUX x86, Linux Alpha, etc.
8763 *) New COMP library [crypto/comp/] for SSL Record Layer Compression:
8764 RLE (dummy implemented) and ZLIB (really implemented when ZLIB is
8768 *) Add -strparse option to asn1pars program which parses nested
8770 [Dr Stephen Henson <shenson@bigfoot.com>]
8772 *) Added "oid_file" to ssleay.cnf for "ca" and "req" programs.
8775 *) DSA fix for "ca" program.
8778 *) Added "-genkey" option to "dsaparam" program.
8781 *) Added RIPE MD160 (rmd160) message digest.
8784 *) Added -a (all) option to "ssleay version" command.
8787 *) Added PLATFORM define which is the id given to Configure.
8790 *) Added MemCheck_XXXX functions to crypto/mem.c for memory checking.
8793 *) Extended the ASN.1 parser routines.
8796 *) Extended BIO routines to support REUSEADDR, seek, tell, etc.
8799 *) Added a BN_CTX to the BN library.
8802 *) Fixed the weak key values in DES library
8805 *) Changed API in EVP library for cipher aliases.
8808 *) Added support for RC2/64bit cipher.
8811 *) Converted the lhash library to the crypto/mem.c functions.
8814 *) Added more recognized ASN.1 object ids.
8817 *) Added more RSA padding checks for SSL/TLS.
8820 *) Added BIO proxy/filter functionality.
8823 *) Added extra_certs to SSL_CTX which can be used
8824 send extra CA certificates to the client in the CA cert chain sending
8825 process. It can be configured with SSL_CTX_add_extra_chain_cert().
8828 *) Now Fortezza is denied in the authentication phase because
8829 this is key exchange mechanism is not supported by SSLeay at all.
8832 *) Additional PKCS1 checks.
8835 *) Support the string "TLSv1" for all TLS v1 ciphers.
8838 *) Added function SSL_get_ex_data_X509_STORE_CTX_idx() which gives the
8839 ex_data index of the SSL context in the X509_STORE_CTX ex_data.
8842 *) Fixed a few memory leaks.
8845 *) Fixed various code and comment typos.
8848 *) A minor bug in ssl/s3_clnt.c where there would always be 4 0
8849 bytes sent in the client random.
8850 [Edward Bishop <ebishop@spyglass.com>]
projects / openssl.git / blob