Newer
Older
Ralf S. Engelschall
committed
Ralf S. Engelschall
committed
_______________
Changes between 0.9.5a and 0.9.6 [xx XXX 2000]
*) 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).
*) 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.
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.
*) 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.
*) 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]
Loading full blame...