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Diffstat (limited to 'CHANGES')
| -rw-r--r-- | CHANGES | 3691 |
1 files changed, 0 insertions, 3691 deletions
diff --git a/CHANGES b/CHANGES deleted file mode 100644 index 8e53374d03..0000000000 --- a/CHANGES +++ /dev/null @@ -1,3691 +0,0 @@ - - OpenSSL CHANGES - _______________ - - Changes between 0.9.6 and 0.9.7 [xx XXX 2000] - - *) Make DSO load along a path given through an environment variable - (SHLIB_PATH) with shl_load(). - [Richard Levitte] - - *) Constify the ENGINE code as a result of BIGNUM constification. - Also constify the RSA code and most things related to it. In a - few places, most notable in the depth of the ASN.1 code, ugly - casts back to non-const were required (to be solved at a later - time) - [Richard Levitte] - - *) Make it so the openssl application has all engines loaded by default. - [Richard Levitte] - - *) Constify the BIGNUM routines a little more. - [Richard Levitte] - - *) Make sure that shared libraries get the internal name engine with - the full version number and not just 0. This should mark the - shared libraries as not backward compatible. Of course, this should - be changed again when we can guarantee backward binary compatibility. - [Richard Levitte] - - *) Add the following functions: - - ENGINE_load_cswift() - ENGINE_load_chil() - ENGINE_load_atalla() - ENGINE_load_nuron() - ENGINE_load_builtin_engines() - - That way, an application can itself choose if external engines that - are built-in in OpenSSL shall ever be used or not. The benefit is - that applications won't have to be linked with libdl or other dso - libraries unless it's really needed. - - Changed 'openssl engine' to load all engines on demand. - Changed the engine header files to avoid the duplication of some - declarations (they differed!). - [Richard Levitte] - - *) 'openssl engine' can now list capabilities. - [Richard Levitte] - - *) Better error reporting in 'openssl engine'. - [Richard Levitte] - - *) Never call load_dh_param(NULL) in s_server. - [Bodo Moeller] - - *) Add engine application. It can currently list engines by name and - identity, and test if they are actually available. - [Richard Levitte] - - *) Add support for shared libraries under Irix. - [Albert Chin-A-Young <china@thewrittenword.com>] - - *) Improve RPM specification file by forcing symbolic linking and making - sure the installed documentation is also owned by root.root. - [Damien Miller <djm@mindrot.org>] - - *) Add configuration option to build on Linux on both big-endian and - little-endian MIPS. - [Ralf Baechle <ralf@uni-koblenz.de>] - - *) Give the OpenSSL applications more possibilities to make use of - keys (public as well as private) handled by engines. - [Richard Levitte] - - *) Add OCSP code that comes from CertCo. - [Richard Levitte] - - *) Add VMS support for the Rijndael code. - [Richard Levitte] - - *) Added untested support for Nuron crypto accelerator. - [Ben Laurie] - - *) Add support for external cryptographic devices. This code was - previously distributed separately as the "engine" branch. - [Geoff Thorpe, Richard Levitte] - - *) Rework the filename-translation in the DSO code. It is now possible to - have far greater control over how a "name" is turned into a filename - depending on the operating environment and any oddities about the - different shared library filenames on each system. - [Geoff Thorpe] - - *) Support threads on FreeBSD-elf in Configure. - [Richard Levitte] - - *) Add the possibility to create shared libraries on HP-UX - [Richard Levitte] - - *) Fix for SHA1 assembly problem with MASM: it produces - warnings about corrupt line number information when assembling - with debugging information. This is caused by the overlapping - of two sections. - [Bernd Matthes <mainbug@celocom.de>, Steve Henson] - - *) NCONF changes. - NCONF_get_number() has no error checking at all. As a replacement, - NCONF_get_number_e() is defined (_e for "error checking") and is - promoted strongly. The old NCONF_get_number is kept around for - binary backward compatibility. - Make it possible for methods to load from something other than a BIO, - by providing a function pointer that is given a name instead of a BIO. - For example, this could be used to load configuration data from an - LDAP server. - [Richard Levitte] - - *) Fix typo in get_cert_by_subject() in by_dir.c - [Jean-Marc Desperrier <jean-marc.desperrier@certplus.com>] - - *) Rework the system to generate shared libraries: - - - Make note of the expected extension for the shared libraries and - if there is a need for symbolic links from for example libcrypto.so.0 - to libcrypto.so.0.9.7. There is extended info in Configure for - that. - - - Make as few rebuilds of the shared libraries as possible. - - - Still avoid linking the OpenSSL programs with the shared libraries. - - - When installing, install the shared libraries separately from the - static ones. - [Richard Levitte] - - *) Fix for non blocking accept BIOs. Added new I/O special reason - BIO_RR_ACCEPT to cover this case. Previously use of accept BIOs - with non blocking I/O was not possible because no retry code was - implemented. Also added new SSL code SSL_WANT_ACCEPT to cover - this case. - [Steve Henson] - - *) Added the beginnings of Rijndael support. - [Ben Laurie] - - *) Fix for bug in DirectoryString mask setting. Add support for - X509_NAME_print_ex() in 'req' and X509_print_ex() function - to allow certificate printing to more controllable, additional - 'certopt' option to 'x509' to allow new printing options to be - set. - [Steve Henson] - - *) Clean old EAY MD5 hack from e_os.h. - [Richard Levitte] - - *) Fix SSL_CTX_set_read_ahead macro to actually use its argument. - - Copy SSL_CTX's read_ahead flag to SSL object directly in SSL_new - and not in SSL_clear because the latter is also used by the - accept/connect functions; previously, the settings made by - SSL_set_read_ahead would be lost during the handshake. - [Bodo Moeller; problems reported by Anders Gertz <gertz@epact.se>] - - *) Correct util/mkdef.pl to be selective about disabled algorithms. - Previously, it would create entries for disableed algorithms no - matter what. - [Richard Levitte] - - Changes between 0.9.5a and 0.9.6 [24 Sep 2000] - - *) In ssl23_get_client_hello, generate an error message when faced - with an initial SSL 3.0/TLS record that is too small to contain the - first two bytes of the ClientHello message, i.e. client_version. - (Note that this is a pathologic case that probably has never happened - in real life.) The previous approach was to use the version number - from the record header as a substitute; but our protocol choice - should not depend on that one because it is not authenticated - by the Finished messages. - [Bodo Moeller] - - *) More robust randomness gathering functions for Windows. - [Jeffrey Altman <jaltman@columbia.edu>] - - *) For compatibility reasons if the flag X509_V_FLAG_ISSUER_CHECK is - not set then we don't setup the error code for issuer check errors - to avoid possibly overwriting other errors which the callback does - handle. If an application does set the flag then we assume it knows - what it is doing and can handle the new informational codes - appropriately. - [Steve Henson] - - *) Fix for a nasty bug in ASN1_TYPE handling. ASN1_TYPE is used for - a general "ANY" type, as such it should be able to decode anything - including tagged types. However it didn't check the class so it would - wrongly interpret tagged types in the same way as their universal - counterpart and unknown types were just rejected. Changed so that the - tagged and unknown types are handled in the same way as a SEQUENCE: - that is the encoding is stored intact. There is also a new type - "V_ASN1_OTHER" which is used when the class is not universal, in this - case we have no idea what the actual type is so we just lump them all - together. - [Steve Henson] - - *) On VMS, stdout may very well lead to a file that is written to - in a record-oriented fashion. That means that every write() will - write a separate record, which will be read separately by the - programs trying to read from it. This can be very confusing. - - The solution is to put a BIO filter in the way that will buffer - text until a linefeed is reached, and then write everything a - line at a time, so every record written will be an actual line, - not chunks of lines and not (usually doesn't happen, but I've - seen it once) several lines in one record. BIO_f_linebuffer() is - the answer. - - Currently, it's a VMS-only method, because that's where it has - been tested well enough. - [Richard Levitte] - - *) Remove 'optimized' squaring variant in BN_mod_mul_montgomery, - it can return incorrect results. - (Note: The buggy variant was not enabled in OpenSSL 0.9.5a, - but it was in 0.9.6-beta[12].) - [Bodo Moeller] - - *) Disable the check for content being present when verifying detached - signatures in pk7_smime.c. Some versions of Netscape (wrongly) - include zero length content when signing messages. - [Steve Henson] - - *) New BIO_shutdown_wr macro, which invokes the BIO_C_SHUTDOWN_WR - BIO_ctrl (for BIO pairs). - [Bodo Möller] - - *) Add DSO method for VMS. - [Richard Levitte] - - *) Bug fix: Montgomery multiplication could produce results with the - wrong sign. - [Ulf Möller] - - *) Add RPM specification openssl.spec and modify it to build three - packages. The default package contains applications, application - documentation and run-time libraries. The devel package contains - include files, static libraries and function documentation. The - doc package contains the contents of the doc directory. The original - openssl.spec was provided by Damien Miller <djm@mindrot.org>. - [Richard Levitte] - - *) Add a large number of documentation files for many SSL routines. - [Lutz Jaenicke <Lutz.Jaenicke@aet.TU-Cottbus.DE>] - - *) Add a configuration entry for Sony News 4. - [NAKAJI Hiroyuki <nakaji@tutrp.tut.ac.jp>] - - *) Don't set the two most significant bits to one when generating a - random number < q in the DSA library. - [Ulf Möller] - - *) New SSL API mode 'SSL_MODE_AUTO_RETRY'. This disables the default - behaviour that SSL_read may result in SSL_ERROR_WANT_READ (even if - the underlying transport is blocking) if a handshake took place. - (The default behaviour is needed by applications such as s_client - and s_server that use select() to determine when to use SSL_read; - but for applications that know in advance when to expect data, it - just makes things more complicated.) - [Bodo Moeller] - - *) Add RAND_egd_bytes(), which gives control over the number of bytes read - from EGD. - [Ben Laurie] - - *) Add a few more EBCDIC conditionals that make `req' and `x509' - work better on such systems. - [Martin Kraemer <Martin.Kraemer@MchP.Siemens.De>] - - *) Add two demo programs for PKCS12_parse() and PKCS12_create(). - Update PKCS12_parse() so it copies the friendlyName and the - keyid to the certificates aux info. - [Steve Henson] - - *) Fix bug in PKCS7_verify() which caused an infinite loop - if there was more than one signature. - [Sven Uszpelkat <su@celocom.de>] - - *) Major change in util/mkdef.pl to include extra information - about each symbol, as well as presentig variables as well - as functions. This change means that there's n more need - to rebuild the .num files when some algorithms are excluded. - [Richard Levitte] - - *) Allow the verify time to be set by an application, - rather than always using the current time. - [Steve Henson] - - *) Phase 2 verify code reorganisation. The certificate - verify code now looks up an issuer certificate by a - number of criteria: subject name, authority key id - and key usage. It also verifies self signed certificates - by the same criteria. The main comparison function is - X509_check_issued() which performs these checks. - - Lot of changes were necessary in order to support this - without completely rewriting the lookup code. - - Authority and subject key identifier are now cached. - - The LHASH 'certs' is X509_STORE has now been replaced - by a STACK_OF(X509_OBJECT). This is mainly because an - LHASH can't store or retrieve multiple objects with - the same hash value. - - As a result various functions (which were all internal - use only) have changed to handle the new X509_STORE - structure. This will break anything that messed round - with X509_STORE internally. - - The functions X509_STORE_add_cert() now checks for an - exact match, rather than just subject name. - - The X509_STORE API doesn't directly support the retrieval - of multiple certificates matching a given criteria, however - this can be worked round by performing a lookup first - (which will fill the cache with candidate certificates) - and then examining the cache for matches. This is probably - the best we can do without throwing out X509_LOOKUP - entirely (maybe later...). - - The X509_VERIFY_CTX structure has been enhanced considerably. - - All certificate lookup operations now go via a get_issuer() - callback. Although this currently uses an X509_STORE it - can be replaced by custom lookups. This is a simple way - to bypass the X509_STORE hackery necessary to make this - work and makes it possible to use more efficient techniques - in future. A very simple version which uses a simple - STACK for its trusted certificate store is also provided - using X509_STORE_CTX_trusted_stack(). - - The verify_cb() and verify() callbacks now have equivalents - in the X509_STORE_CTX structure. - - X509_STORE_CTX also has a 'flags' field which can be used - to customise the verify behaviour. - [Steve Henson] - - *) Add new PKCS#7 signing option PKCS7_NOSMIMECAP which - excludes S/MIME capabilities. - [Steve Henson] - - *) When a certificate request is read in keep a copy of the - original encoding of the signed data and use it when outputing - again. Signatures then use the original encoding rather than - a decoded, encoded version which may cause problems if the - request is improperly encoded. - [Steve Henson] - - *) For consistency with other BIO_puts implementations, call - buffer_write(b, ...) directly in buffer_puts instead of calling - BIO_write(b, ...). - - In BIO_puts, increment b->num_write as in BIO_write. - [Peter.Sylvester@EdelWeb.fr] - - *) Fix BN_mul_word for the case where the word is 0. (We have to use - BN_zero, we may not return a BIGNUM with an array consisting of - words set to zero.) - [Bodo Moeller] - - *) Avoid calling abort() from within the library when problems are - detected, except if preprocessor symbols have been defined - (such as REF_CHECK, BN_DEBUG etc.). - [Bodo Moeller] - - *) New openssl application 'rsautl'. This utility can be - used for low level RSA operations. DER public key - BIO/fp routines also added. - [Steve Henson] - - *) New Configure entry and patches for compiling on QNX 4. - [Andreas Schneider <andreas@ds3.etech.fh-hamburg.de>] - - *) A demo state-machine implementation was sponsored by - Nuron (http://www.nuron.com/) and is now available in - demos/state_machine. - [Ben Laurie] - - *) New options added to the 'dgst' utility for signature - generation and verification. - [Steve Henson] - - *) Unrecognized PKCS#7 content types are now handled via a - catch all ASN1_TYPE structure. This allows unsupported - types to be stored as a "blob" and an application can - encode and decode it manually. - [Steve Henson] - - *) Fix various signed/unsigned issues to make a_strex.c - compile under VC++. - [Oscar Jacobsson <oscar.jacobsson@celocom.com>] - - *) ASN1 fixes. i2d_ASN1_OBJECT was not returning the correct - length if passed a buffer. ASN1_INTEGER_to_BN failed - if passed a NULL BN and its argument was negative. - [Steve Henson, pointed out by Sven Heiberg <sven@tartu.cyber.ee>] - - *) Modification to PKCS#7 encoding routines to output definite - length encoding. Since currently the whole structures are in - memory there's not real point in using indefinite length - constructed encoding. However if OpenSSL is compiled with - the flag PKCS7_INDEFINITE_ENCODING the old form is used. - [Steve Henson] - - *) Added BIO_vprintf() and BIO_vsnprintf(). - [Richard Levitte] - - *) Added more prefixes to parse for in the the strings written - through a logging bio, to cover all the levels that are available - through syslog. The prefixes are now: - - PANIC, EMERG, EMR => LOG_EMERG - ALERT, ALR => LOG_ALERT - CRIT, CRI => LOG_CRIT - ERROR, ERR => LOG_ERR - WARNING, WARN, WAR => LOG_WARNING - NOTICE, NOTE, NOT => LOG_NOTICE - INFO, INF => LOG_INFO - DEBUG, DBG => LOG_DEBUG - - and as before, if none of those prefixes are present at the - beginning of the string, LOG_ERR is chosen. - - On Win32, the LOG_* levels are mapped according to this: - - LOG_EMERG, LOG_ALERT, LOG_CRIT, LOG_ERR => EVENTLOG_ERROR_TYPE - LOG_WARNING => EVENTLOG_WARNING_TYPE - LOG_NOTICE, LOG_INFO, LOG_DEBUG => EVENTLOG_INFORMATION_TYPE - - [Richard Levitte] - - *) Made it possible to reconfigure with just the configuration - argument "reconf" or "reconfigure". The command line arguments - are stored in Makefile.ssl in the variable CONFIGURE_ARGS, - and are retrieved from there when reconfiguring. - [Richard Levitte] - - *) MD4 implemented. - [Assar Westerlund <assar@sics.se>, Richard Levitte] - - *) Add the arguments -CAfile and -CApath to the pkcs12 utility. - [Richard Levitte] - - *) The obj_dat.pl script was messing up the sorting of object - names. The reason was that it compared the quoted version - of strings as a result "OCSP" > "OCSP Signing" because - " > SPACE. Changed script to store unquoted versions of - names and add quotes on output. It was also omitting some - names from the lookup table if they were given a default - value (that is if SN is missing it is given the same - value as LN and vice versa), these are now added on the - grounds that if an object has a name we should be able to - look it up. Finally added warning output when duplicate - short or long names are found. - [Steve Henson] - - *) Changes needed for Tandem NSK. - [Scott Uroff <scott@xypro.com>] - - *) Fix SSL 2.0 rollback checking: Due to an off-by-one error in - RSA_padding_check_SSLv23(), special padding was never detected - and thus the SSL 3.0/TLS 1.0 countermeasure against protocol - version rollback attacks was not effective. - - In s23_clnt.c, don't use special rollback-attack detection padding - (RSA_SSLV23_PADDING) if SSL 2.0 is the only protocol enabled in the - client; similarly, in s23_srvr.c, don't do the rollback check if - SSL 2.0 is the only protocol enabled in the server. - [Bodo Moeller] - - *) Make it possible to get hexdumps of unprintable data with 'openssl - asn1parse'. By implication, the functions ASN1_parse_dump() and - BIO_dump_indent() are added. - [Richard Levitte] - - *) New functions ASN1_STRING_print_ex() and X509_NAME_print_ex() - these print out strings and name structures based on various - flags including RFC2253 support and proper handling of - multibyte characters. Added options to the 'x509' utility - to allow the various flags to be set. - [Steve Henson] - - *) Various fixes to use ASN1_TIME instead of ASN1_UTCTIME. - Also change the functions X509_cmp_current_time() and - X509_gmtime_adj() work with an ASN1_TIME structure, - this will enable certificates using GeneralizedTime in validity - dates to be checked. - [Steve Henson] - - *) Make the NEG_PUBKEY_BUG code (which tolerates invalid - negative public key encodings) on by default, - NO_NEG_PUBKEY_BUG can be set to disable it. - [Steve Henson] - - *) New function c2i_ASN1_OBJECT() which acts on ASN1_OBJECT - content octets. An i2c_ASN1_OBJECT is unnecessary because - the encoding can be trivially obtained from the structure. - [Steve Henson] - - *) crypto/err.c locking bugfix: Use write locks (CRYPTO_w_[un]lock), - not read locks (CRYPTO_r_[un]lock). - [Bodo Moeller] - - *) A first attempt at creating official support for shared - libraries through configuration. I've kept it so the - default is static libraries only, and the OpenSSL programs - are always statically linked for now, but there are - preparations for dynamic linking in place. - This has been tested on Linux and True64. - [Richard Levitte] - - *) Randomness polling function for Win9x, as described in: - Peter Gutmann, Software Generation of Practically Strong - Random Numbers. - [Ulf Möller] - - *) Fix so PRNG is seeded in req if using an already existing - DSA key. - [Steve Henson] - - *) New options to smime application. -inform and -outform - allow alternative formats for the S/MIME message including - PEM and DER. The -content option allows the content to be - specified separately. This should allow things like Netscape - form signing output easier to verify. - [Steve Henson] - - *) Fix the ASN1 encoding of tags using the 'long form'. - [Steve Henson] - - *) New ASN1 functions, i2c_* and c2i_* for INTEGER and BIT - STRING types. These convert content octets to and from the - underlying type. The actual tag and length octets are - already assumed to have been read in and checked. These - are needed because all other string types have virtually - identical handling apart from the tag. By having versions - of the ASN1 functions that just operate on content octets - IMPLICIT tagging can be handled properly. It also allows - the ASN1_ENUMERATED code to be cut down because ASN1_ENUMERATED - and ASN1_INTEGER are identical apart from the tag. - [Steve Henson] - - *) Change the handling of OID objects as follows: - - - New object identifiers are inserted in objects.txt, following - the syntax given in objects.README. - - objects.pl is used to process obj_mac.num and create a new - obj_mac.h. - - obj_dat.pl is used to create a new obj_dat.h, using the data in - obj_mac.h. - - This is currently kind of a hack, and the perl code in objects.pl - isn't very elegant, but it works as I intended. The simplest way - to check that it worked correctly is to look in obj_dat.h and - check the array nid_objs and make sure the objects haven't moved - around (this is important!). Additions are OK, as well as - consistent name changes. - [Richard Levitte] - - *) Add BSD-style MD5-based passwords to 'openssl passwd' (option '-1'). - [Bodo Moeller] - - *) Addition of the command line parameter '-rand file' to 'openssl req'. - The given file adds to whatever has already been seeded into the - random pool through the RANDFILE configuration file option or - environment variable, or the default random state file. - [Richard Levitte] - - *) mkstack.pl now sorts each macro group into lexical order. - Previously the output order depended on the order the files - appeared in the directory, resulting in needless rewriting - of safestack.h . - [Steve Henson] - - *) Patches to make OpenSSL compile under Win32 again. Mostly - work arounds for the VC++ problem that it treats func() as - func(void). Also stripped out the parts of mkdef.pl that - added extra typesafe functions: these no longer exist. - [Steve Henson] - - *) 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_<name>(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. Similar behaviour for ASN1_SET_OF - and PKCS12_STACK_OF. - [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 <bertie@ncipher.com> 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 <root@theporch.com>] - - *) 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 <jjarvie@newsguy.com>] - - *) 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 - features. - [Steve Henson] - - *) Eliminate non-ANSI declarations in crypto.h and stack.h. - [Ulf Möller] - - *) Fix for SSL server purpose checking. Server checking was - rejecting certificates which had extended key usage present - but no ssl client purpose. - [Steve Henson, reported by Rene Grosser <grosser@hisolutions.com>] - - *) Make PKCS#12 code work with no password. The PKCS#12 spec - is a little unclear about how a blank password is handled. - Since the password in encoded as a BMPString with terminating - double NULL a zero length password would end up as just the - double NULL. However no password at all is different and is - handled differently in the PKCS#12 key generation code. NS - treats a blank password as zero length. MSIE treats it as no - password on export: but it will try both on import. We now do - the same: PKCS12_parse() tries zero length and no password if - the password is set to "" or NULL (NULL is now a valid password: - it wasn't before) as does the pkcs12 application. - [Steve Henson] - - *) Bugfixes in apps/x509.c: Avoid a memory leak; and don't use - perror when PEM_read_bio_X509_REQ fails, the error message must - be obtained from the error queue. - [Bodo Moeller] - - *) Avoid 'thread_hash' memory leak in crypto/err/err.c by freeing - it in ERR_remove_state if appropriate, and change ERR_get_state - accordingly to avoid race conditions (this is necessary because - thread_hash is no longer constant once set). - [Bodo Moeller] - - *) Bugfix for linux-elf makefile.one. - [Ulf Möller] - - *) RSA_get_default_method() will now cause a default - RSA_METHOD to be chosen if one doesn't exist already. - Previously this was only set during a call to RSA_new() - or RSA_new_method(NULL) meaning it was possible for - RSA_get_default_method() to return NULL. - [Geoff Thorpe] - - *) Added native name translation to the existing DSO code - that will convert (if the flag to do so is set) filenames - that are sufficiently small and have no path information - into a canonical native form. Eg. "blah" converted to - "libblah.so" or "blah.dll" etc. - [Geoff Thorpe] - - *) New function ERR_error_string_n(e, buf, len) which is like - ERR_error_string(e, buf), but writes at most 'len' bytes - including the 0 terminator. For ERR_error_string_n, 'buf' - may not be NULL. - [Damien Miller <djm@mindrot.org>, Bodo Moeller] - - *) CONF library reworked to become more general. A new CONF - configuration file reader "class" is implemented as well as a - new functions (NCONF_*, for "New CONF") to handle it. The now - old CONF_* functions are still there, but are reimplemented to - work in terms of the new functions. Also, a set of functions - to handle the internal storage of the configuration data is - provided to make it easier to write new configuration file - reader "classes" (I can definitely see something reading a - configuration file in XML format, for example), called _CONF_*, - or "the configuration storage API"... - - 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_default, NCONF_WIN32 - - 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 - as other interfaces in OpenSSL, like the BIO interface. - NCONF_dump_* dump the internal storage of the configuration file, - which is useful for debugging. All other functions take the same - arguments as the old CONF_* functions wth the exception of the - first that must be a `CONF *' instead of a `LHASH *'. - - To make it easer to use the new classes with the old CONF_* functions, - the function CONF_set_default_method is provided. - [Richard Levitte] - - *) Add '-tls1' option to 'openssl ciphers', which was already - mentioned in the documentation but had not been implemented. - (This option is not yet really useful because even the additional - experimental TLS 1.0 ciphers are currently treated as SSL 3.0 ciphers.) - [Bodo Moeller] - - *) Initial DSO code added into libcrypto for letting OpenSSL (and - OpenSSL-based applications) load shared libraries and bind to - them in a portable way. - [Geoff Thorpe, with contributions from Richard Levitte] - - Changes between 0.9.5 and 0.9.5a [1 Apr 2000] - - *) Make sure _lrotl and _lrotr are only used with MSVC. - - *) Use lock CRYPTO_LOCK_RAND correctly in ssleay_rand_status - (the default implementation of RAND_status). - - *) Rename openssl x509 option '-crlext', which was added in 0.9.5, - to '-clrext' (= clear extensions), as intended and documented. - [Bodo Moeller; inconsistency pointed out by Michael Attili - <attili@amaxo.com>] - - *) Fix for HMAC. It wasn't zeroing the rest of the block if the key length - was larger than the MD block size. - [Steve Henson, pointed out by Yost William <YostW@tce.com>] - - *) Modernise PKCS12_parse() so it uses STACK_OF(X509) for its ca argument - fix a leak when the ca argument was passed as NULL. Stop X509_PUBKEY_set() - using the passed key: if the passed key was a private key the result - of X509_print(), for example, would be to print out all the private key - components. - [Steve Henson] - - *) des_quad_cksum() byte order bug fix. - [Ulf Möller, using the problem description in krb4-0.9.7, where - the solution is attributed to Derrick J Brashear <shadow@DEMENTIA.ORG>] - - *) Fix so V_ASN1_APP_CHOOSE works again: however its use is strongly - discouraged. - [Steve Henson, pointed out by Brian Korver <briank@cs.stanford.edu>] - - *) For easily testing in shell scripts whether some command - 'openssl XXX' exists, the new pseudo-command 'openssl no-XXX' - returns with exit code 0 iff no command of the given name is available. - 'no-XXX' is printed in this case, 'XXX' otherwise. In both cases, - the output goes to stdout and nothing is printed to stderr. - Additional arguments are always ignored. - - Since for each cipher there is a command of the same name, - the 'no-cipher' compilation switches can be tested this way. - - ('openssl no-XXX' is not able to detect pseudo-commands such - as 'quit', 'list-XXX-commands', or 'no-XXX' itself.) - [Bodo Moeller] - - *) Update test suite so that 'make test' succeeds in 'no-rsa' configuration. - [Bodo Moeller] - - *) For SSL_[CTX_]set_tmp_dh, don't cr |