X-Git-Url: https://git.openssl.org/gitweb/?p=openssl.git;a=blobdiff_plain;f=CHANGES;h=e1c9601c9b5f1f7a6efcb6877118ce684d101163;hp=bb2e353d59cf75f3d0a9ab1b2ba3925f83d3f5db;hb=3f39e5ae6c650ad3f9bac186c5ac16f037c0d1b0;hpb=439df5087f012e65b80c13ade8953778cc0b4704 diff --git a/CHANGES b/CHANGES index bb2e353d59..e1c9601c9b 100644 --- a/CHANGES +++ b/CHANGES @@ -4,6 +4,153 @@ Changes between 0.9.5a and 0.9.6 [xx XXX 2000] + *) Reorganisation of the stack code. The macros are now all + collected in safestack.h . Each macro is defined in terms of + a "stack macro" of the form SKM_(type, a, b). The + DEBUG_SAFESTACK is now handled in terms of function casts, + this has the advantage of retaining type safety without the + use of additional functions. If DEBUG_SAFESTACK is not defined + then the non typesafe macros are used instead. Also modified the + mkstack.pl script to handle the new form. Needs testing to see + if which (if any) compilers it chokes and maybe make DEBUG_SAFESTACK + the default if no major problems. Also need analagous stuff for + ASN1_SET_OF etc. + [Steve Henson] + + *) When some versions of IIS use the 'NET' form of private key the + key derivation algorithm is different. Normally MD5(password) is + used as a 128 bit RC4 key. In the modified case + MD5(MD5(password) + "SGCKEYSALT") is used insted. Added some + new functions i2d_RSA_NET(), d2i_RSA_NET() etc which are the same + as the old Netscape_RSA functions except they have an additional + 'sgckey' parameter which uses the modified algorithm. Also added + an -sgckey command line option to the rsa utility. Thanks to + Adrian Peck for posting details of the modified + algorithm to openssl-dev. + [Steve Henson] + + *) The evp_local.h macros were using 'c.##kname' which resulted in + invalid expansion on some systems (SCO 5.0.5 for example). + Corrected to 'c.kname'. + [Phillip Porch ] + + *) New X509_get1_email() and X509_REQ_get1_email() functions that return + a STACK of email addresses from a certificate or request, these look + in the subject name and the subject alternative name extensions and + omit any duplicate addresses. + [Steve Henson] + + *) Re-implement BN_mod_exp2_mont using independent (and larger) windows. + This makes DSA verification about 2 % faster. + [Bodo Moeller] + + *) Increase maximum window size in BN_mod_exp_... to 6 bits instead of 5 + (meaning that now 2^5 values will be precomputed, which is only 4 KB + plus overhead for 1024 bit moduli). + This makes exponentiations about 0.5 % faster for 1024 bit + exponents (as measured by "openssl speed rsa2048"). + [Bodo Moeller] + + *) Rename memory handling macros to avoid conflicts with other + software: + Malloc => OPENSSL_malloc + Malloc_locked => OPENSSL_malloc_locked + Realloc => OPENSSL_realloc + Free => OPENSSL_free + [Richard Levitte] + + *) New function BN_mod_exp_mont_word for small bases (roughly 15% + faster than BN_mod_exp_mont, i.e. 7% for a full DH exchange). + [Bodo Moeller] + + *) CygWin32 support. + [John Jarvie ] + + *) The type-safe stack code has been rejigged. It is now only compiled + in when OpenSSL is configured with the DEBUG_SAFESTACK option and + by default all type-specific stack functions are "#define"d back to + standard stack functions. This results in more streamlined output + but retains the type-safety checking possibilities of the original + approach. + [Geoff Thorpe] + + *) The STACK code has been cleaned up, and certain type declarations + that didn't make a lot of sense have been brought in line. This has + also involved a cleanup of sorts in safestack.h to more correctly + map type-safe stack functions onto their plain stack counterparts. + This work has also resulted in a variety of "const"ifications of + lots of the code, especially "_cmp" operations which should normally + be prototyped with "const" parameters anyway. + [Geoff Thorpe] + + *) When generating bytes for the first time in md_rand.c, 'stir the pool' + by seeding with STATE_SIZE dummy bytes (with zero entropy count). + (The PRNG state consists of two parts, the large pool 'state' and 'md', + where all of 'md' is used each time the PRNG is used, but 'state' + is used only indexed by a cyclic counter. As entropy may not be + well distributed from the beginning, 'md' is important as a + chaining variable. However, the output function chains only half + of 'md', i.e. 80 bits. ssleay_rand_add, on the other hand, chains + all of 'md', and seeding with STATE_SIZE dummy bytes will result + in all of 'state' being rewritten, with the new values depending + on virtually all of 'md'. This overcomes the 80 bit limitation.) + [Bodo Moeller] + + *) In ssl/s2_clnt.c and ssl/s3_clnt.c, call ERR_clear_error() when + the handshake is continued after ssl_verify_cert_chain(); + otherwise, if SSL_VERIFY_NONE is set, remaining error codes + can lead to 'unexplainable' connection aborts later. + [Bodo Moeller; problem tracked down by Lutz Jaenicke] + + *) Major EVP API cipher revision. + Add hooks for extra EVP features. This allows various cipher + parameters to be set in the EVP interface. Support added for variable + key length ciphers via the EVP_CIPHER_CTX_set_key_length() function and + setting of RC2 and RC5 parameters. + + Modify EVP_OpenInit() and EVP_SealInit() to cope with variable key length + ciphers. + + Remove lots of duplicated code from the EVP library. For example *every* + cipher init() function handles the 'iv' in the same way according to the + cipher mode. They also all do nothing if the 'key' parameter is NULL and + for CFB and OFB modes they zero ctx->num. + + New functionality allows removal of S/MIME code RC2 hack. + + Most of the routines have the same form and so can be declared in terms + of macros. + + By shifting this to the top level EVP_CipherInit() it can be removed from + all individual ciphers. If the cipher wants to handle IVs or keys + differently it can set the EVP_CIPH_CUSTOM_IV or EVP_CIPH_ALWAYS_CALL_INIT + flags. + + Change lots of functions like EVP_EncryptUpdate() to now return a + value: although software versions of the algorithms cannot fail + any installed hardware versions can. + [Steve Henson] + + *) Implement SSL_OP_TLS_ROLLBACK_BUG: In ssl3_get_client_key_exchange, if + this option is set, tolerate broken clients that send the negotiated + protocol version number instead of the requested protocol version + number. + [Bodo Moeller] + + *) Call dh_tmp_cb (set by ..._TMP_DH_CB) with correct 'is_export' flag; + i.e. non-zero for export ciphersuites, zero otherwise. + Previous versions had this flag inverted, inconsistent with + rsa_tmp_cb (..._TMP_RSA_CB). + [Bodo Moeller; problem reported by Amit Chopra] + + *) Add missing DSA library text string. Work around for some IIS + key files with invalid SEQUENCE encoding. + [Steve Henson] + + *) Add a document (doc/standards.txt) that list all kinds of standards + and so on that are implemented in OpenSSL. + [Richard Levitte] + *) Enhance c_rehash script. Old version would mishandle certificates with the same subject name hash and wouldn't handle CRLs at all. Added -fingerprint option to crl utility, to support new c_rehash @@ -11,7 +158,7 @@ [Steve Henson] *) Eliminate non-ANSI declarations in crypto.h and stack.h. - [Ulf Möller] + [Ulf Möller] *) Fix for SSL server purpose checking. Server checking was rejecting certificates which had extended key usage present @@ -78,12 +225,12 @@ The new configuration file reading functions are: - NCONF_new, NCONF_free, NCONF_load, NCONF_load_fp, NCONF_load_bio, - NCONF_get_section, NCONF_get_string, NCONF_get_numbre + NCONF_new, NCONF_free, NCONF_load, NCONF_load_fp, NCONF_load_bio, + NCONF_get_section, NCONF_get_string, NCONF_get_numbre - NCONF_default, NCONF_WIN32 + NCONF_default, NCONF_WIN32 - NCONF_dump_fp, NCONF_dump_bio + NCONF_dump_fp, NCONF_dump_bio NCONF_default and NCONF_WIN32 are method (or "class") choosers, NCONF_new creates a new CONF object. This works in the same way @@ -749,11 +896,11 @@ With these changes, a new set of functions and macros have appeared: - CRYPTO_set_mem_debug_functions() [F] - CRYPTO_get_mem_debug_functions() [F] - CRYPTO_dbg_set_options() [F] - CRYPTO_dbg_get_options() [F] - CRYPTO_malloc_debug_init() [M] + CRYPTO_set_mem_debug_functions() [F] + CRYPTO_get_mem_debug_functions() [F] + CRYPTO_dbg_set_options() [F] + CRYPTO_dbg_get_options() [F] + CRYPTO_malloc_debug_init() [M] The memory debug functions are NULL by default, unless the library is compiled with CRYPTO_MDEBUG or friends is defined. If someone