OpenSSL CHANGES
_______________
- Changes between 0.9.5a and 0.9.6 [xx XXX 2000]
+ Changes between 0.9.6 and 0.9.7 [xx XXX 2000]
+
+ *) 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
[Richard Levitte]
*) MD4 implemented.
- [Assar Westerlund <assar@assaris.sics.se>, Richard Levitte]
+ [Assar Westerlund <assar@sics.se>, Richard Levitte]
*) Add the arguments -CAfile and -CApath to the pkcs12 utility.
[Richard Levitte]
[Steve Henson]
*) Changes needed for Tandem NSK.
- [Scott Uroff scott@xypro.com]
+ [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
projects / openssl.git / blobdiff