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Ralf S. Engelschall
committed
_______________
Changes between 0.9.6 and 0.9.7 [xx XXX 2001]
OpenSSL 0.9.6a/0.9.6b (bugfix releases, 5 Apr 2001 and 9 July 2001)
Change log entries are tagged as follows:
-) applies to 0.9.6a/0.9.6b/0.9.6c only
*) applies to 0.9.6a/0.9.6b/0.9.6c and 0.9.7
+) applies to 0.9.7 only
+) Use wNAFs in EC_POINTs_mul() for improved efficiency (about 10%
better than before for single multiplications over P-192 or P-224).
[Bodo Moeller]
-) [In 0.9.6c-engine release:]
Add support for Broadcom crypto accelerator cards, backported
from 0.9.7.
[Broadcom, Nalin Dahyabhai <nalin@redhat.com>, Mark Cox]
-) [In 0.9.6c-engine release:]
Add support for SureWare crypto accelerator cards from
Baltimore Technologies. (Use engine 'sureware')
[Baltimore Technologies and Mark Cox]
-) [In 0.9.6c-engine release:]
Add support for crypto accelerator cards from Accelerated
Encryption Processing, www.aep.ie. (Use engine 'aep')
[AEP Inc. and Mark Cox]
*) Add a configuration entry for gcc on UnixWare.
[Gary Benson <gbenson@redhat.com>]
+) New functions/macros
SSL_CTX_set_msg_callback(ctx, cb)
SSL_CTX_set_msg_callback_arg(ctx, arg)
SSL_set_msg_callback(ssl, cb)
SSL_set_msg_callback_arg(ssl, arg)
to request calling a callback function
void cb(int write_p, int version, int content_type,
const void *buf, size_t len, SSL *ssl, void *arg)
whenever a protocol message has been completely received
(write_p == 0) or sent (write_p == 1). Here 'version' is the
protocol version according to which the SSL library interprets
the current protocol message (SSL2_VERSION, SSL3_VERSION, or
TLS1_VERSION). 'content_type' is 0 in the case of SSL 2.0, or
the content type as defined in the SSL 3.0/TLS 1.0 protocol
specification (change_cipher_spec(20), alert(21), handshake(22)).
'buf' and 'len' point to the actual message, 'ssl' to the
SSL object, and 'arg' is the application-defined value set by
SSL[_CTX]_set_msg_callback_arg().
'openssl s_client' and 'openssl s_server' have new '-msg' options
to enable a callback that displays all protocol messages.
[Bodo Moeller]
*) Change ssl/s2_clnt.c and ssl/s2_srvr.c so that received handshake
messages are stored in a single piece (fixed-length part and
variable-length part combined) and fix various bugs found on the way.
[Bodo Moeller]
+) Change the shared library support so shared libraries are built as
soon as the corresponding static library is finished, and thereby get
openssl and the test programs linked against the shared library.
This still only happens when the keyword "shard" has been given to
the configuration scripts.
NOTE: shared library support is still an experimental thing, and
backward binary compatibility is still not guaranteed.
["Maciej W. Rozycki" <macro@ds2.pg.gda.pl> and Richard Levitte]
+) Add support for Subject Information Access extension.
[Peter Sylvester <Peter.Sylvester@EdelWeb.fr>]
+) Make BUF_MEM_grow() behaviour more consistent: Initialise to zero
additional bytes when new memory had to be allocated, not just
when reusing an existing buffer.
[Bodo Moeller]
*) Disable caching in BIO_gethostbyname(), directly use gethostbyname()
instead. BIO_gethostbyname() does not know what timeouts are
appropriate, so entries would stay in cache even when they have
become invalid.
[Bodo Moeller; problem pointed out by Rich Salz <rsalz@zolera.com>
+) New command line and configuration option 'utf8' for the req command.
This allows field values to be specified as UTF8 strings.
[Steve Henson]
Ben Laurie
committed
+) Add -multi and -mr options to "openssl speed" - giving multiple parallel
runs for the former and machine-readable output for the latter.
[Ben Laurie]
+) Add '-noemailDN' option to 'openssl ca'. This prevents inclusion
of the e-mail address in the DN (i.e., it will go into a certificate
extension only). The new configuration file option 'email_in_dn = no'
has the same effect.
[Massimiliano Pala madwolf@openca.org]
*) Change ssl23_get_client_hello (ssl/s23_srvr.c) behaviour when
faced with a pathologically small ClientHello fragment that does
not contain client_version: Instead of aborting with an error,
simply choose the highest available protocol version (i.e.,
TLS 1.0 unless it is disabled). In practice, ClientHello
messages are never sent like this, but this change gives us
strictly correct behaviour at least for TLS.
[Bodo Moeller]
+) Change all functions with names starting with des_ to be starting
with DES_ instead. This because there are increasing clashes with
libdes and other des libraries that are currently used by other
projects. The old libdes interface is provided, as well as crypt(),
if openssl/des_old.h is included. Note that crypt() is no longer
declared in openssl/des.h.
NOTE: This is a major break of an old API into a new one. Software
authors are encouraged to switch to the DES_ style functions. Some
time in the future, des_old.h and the libdes compatibility functions
will be completely removed.
[Richard Levitte]
*) Fix SSL handshake functions and SSL_clear() such that SSL_clear()
never resets s->method to s->ctx->method when called from within
one of the SSL handshake functions.
[Bodo Moeller; problem pointed out by Niko Baric]
+) Test for certificates which contain unsupported critical extensions.
If such a certificate is found during a verify operation it is
rejected by default: this behaviour can be overridden by either
handling the new error X509_V_ERR_UNHANDLED_CRITICAL_EXTENSION or
by setting the verify flag X509_V_FLAG_IGNORE_CRITICAL. A new function
X509_supported_extension() has also been added which returns 1 if a
particular extension is supported.
[Steve Henson]
*) In ssl3_get_client_hello (ssl/s3_srvr.c), generate a fatal alert
(sent using the client's version number) if client_version is
smaller than the protocol version in use. Also change
ssl23_get_client_hello (ssl/s23_srvr.c) to select TLS 1.0 if
the client demanded SSL 3.0 but only TLS 1.0 is enabled; then
the client will at least see that alert.
[Bodo Moeller]
+) Modify the behaviour of EVP cipher functions in similar way to digests
to retain compatibility with existing code.
[Steve Henson]
+) Modify the behaviour of EVP_DigestInit() and EVP_DigestFinal() to retain
compatibility with existing code. In particular the 'ctx' parameter does
not have to be to be initialized before the call to EVP_DigestInit() and
it is tidied up after a call to EVP_DigestFinal(). New function
EVP_DigestFinal_ex() which does not tidy up the ctx. Similarly function
EVP_MD_CTX_copy() changed to not require the destination to be
initialized valid and new function EVP_MD_CTX_copy_ex() added which
requires the destination to be valid.
Modify all the OpenSSL digest calls to use EVP_DigestInit_ex(),
EVP_DigestFinal_ex() and EVP_MD_CTX_copy_ex().
+) Change ssl3_get_message (ssl/s3_both.c) and the functions using it
so that complete 'Handshake' protocol structures are kept in memory
instead of overwriting 'msg_type' and 'length' with 'body' data.
[Bodo Moeller]
*) Fix ssl3_get_message (ssl/s3_both.c) to handle message fragmentation
correctly.
[Bodo Moeller]
+) Add an implementation of SSL_add_dir_cert_subjects_to_stack for Win32.
[Massimo Santin via Richard Levitte]
+) Major restructuring to the underlying ENGINE code. This includes
reduction of linker bloat, separation of pure "ENGINE" manipulation
(initialisation, etc) from functionality dealing with implementations
of specific crypto iterfaces. This change also introduces integrated
support for symmetric ciphers and digest implementations - so ENGINEs
can now accelerate these by providing EVP_CIPHER and EVP_MD
implementations of their own. This is detailed in crypto/engine/README
as it couldn't be adequately described here. However, there are a few
API changes worth noting - some RSA, DSA, DH, and RAND functions that
were changed in the original introduction of ENGINE code have now
reverted back - the hooking from this code to ENGINE is now a good
deal more passive and at run-time, operations deal directly with
RSA_METHODs, DSA_METHODs (etc) as they did before, rather than
dereferencing through an ENGINE pointer any more. Also, the ENGINE
functions dealing with BN_MOD_EXP[_CRT] handlers have been removed -
they were not being used by the framework as there is no concept of a
BIGNUM_METHOD and they could not be generalised to the new
'ENGINE_TABLE' mechanism that underlies the new code. Similarly,
ENGINE_cpy() has been removed as it cannot be consistently defined in
the new code.
[Geoff Thorpe]
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