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29 commits

Author SHA1 Message Date
Andy Polyakov
0a5575f3f6 bn/bn_gf2m.c: make new BN_GF2m_mod_inv work with BN_DEBUG_RAND [from HEAD]. 2012-03-30 17:40:52 +00:00
Ben Laurie
825e1a7c56 Fix warnings. 2011-12-02 14:39:41 +00:00
Andy Polyakov
9f1c5491d2 BN update from HEAD. 2011-11-14 21:05:42 +00:00
Dr. Stephen Henson
dcbe723bc5 PR: 2540 
Submitted by: emmanuel.azencot@bull.net
Reviewed by: steve

Prevent infinite loop in BN_GF2m_mod_inv().
 2011-06-22 15:23:40 +00:00
Dr. Stephen Henson
f610a516a0 Backport from HEAD: 
New option to disable characteristic two fields in EC code.

Make no-ec2m work on Win32 build.
 2011-06-06 11:49:36 +00:00
Bodo Möller
7fe747d1eb Always check bn_wexpend() return values for failure (CVE-2009-3245). 
(The CHANGES entry covers the change from PR #2111 as well, submitted by
Martin Olsson.)

Submitted by: Neel Mehta
 2010-02-23 10:36:30 +00:00
Bodo Möller
8228fd89fc avoid potential infinite loop in final reduction round of BN_GF2m_mod_arr() 
Submitted by: Huang Ying
Reviewed by: Douglas Stebila
 2008-06-23 20:46:24 +00:00
Andy Polyakov
1a4e245f3e Unsigned vs signed comparison warning. 2006-07-04 20:29:14 +00:00
Bodo Möller
c4e7870ac1 Change array representation of binary polynomials to make GF2m part of 
the BN library more generally useful.

Submitted by: Douglas Stebila
 2006-06-18 22:00:57 +00:00
Nils Larsch
8c5a2bd6bb add additional checks + cleanup 
Submitted by: David Hartman <david_hartman@symantec.com>
 2006-01-29 23:12:22 +00:00
Andy Polyakov
4a47f55639 Eliminate warning induced by http://cvs.openssl.org/chngview?cn=14690 and 
keep disclaiming narrower than 32-bit support.
 2005-12-16 10:37:24 +00:00
Bodo Möller
aa4ce7315f Fix various incorrect error function codes. 
("perl util/ck_errf.pl */*.c */*/*.c" still reports many more.)
 2005-04-26 18:53:22 +00:00
Geoff Thorpe
ace3ebd661 Improve error handling if decompression of an ec point fails, and cleanup 
ec_curve.c (unify comments, etc).

Submitted by: Nils Larsch
Reviewed by: Bodo Moeller, Geoff Thorpe
 2004-07-06 15:50:04 +00:00
Geoff Thorpe
b6358c89a1 Convert openssl code not to assume the deprecated form of BN_zero(). 
Remove certain redundant BN_zero() initialisations, because BN_CTX_get(),
BN_init(), [etc] already initialise to zero.

Correct error checking in bn_sqr.c, and be less wishy-wash about how/why
the result's 'top' value is set (note also, 'max' is always > 0 at this
point).
 2004-03-13 23:57:20 +00:00
Andy Polyakov
27b2b78f90 Even though C specification explicitly says that constant type "stretches" 
automatically to accomodate the value, some compilers fail to do so. Most
notably 0x0123456789ABCDEF should come out as long long in 32-bit context,
but HP compiler truncates it to 32-bit value. Which in turn breaks GF(2^m)
arithmetics in hpux-parisc2-cc build. Therefore this fix...
 2004-01-25 10:53:43 +00:00
Geoff Thorpe
e7e5fe4705 Add missing bn_check_top()s to bn_gf2m.c and remove some miscellaneous 
white-space.
 2003-12-01 23:10:21 +00:00
Geoff Thorpe
444c3a8492 Get rid of some signed/unsigned comparison warnings. 2003-11-28 16:39:16 +00:00
Geoff Thorpe
e1064adfd3 Some changes for bn_gf2m.c: better error checking plus some minor 
optimizations.

Submitted by: Nils Larsch
 2003-11-25 03:41:20 +00:00
Geoff Thorpe
d870740cd7 Put the first stage of my bignum debugging adventures into CVS. This code 
is itself experimental, and in addition may cause execution to break on
existing openssl "bugs" that previously were harmless or at least
invisible.
 2003-11-04 22:54:49 +00:00
Richard Levitte
2047bda6fb Unused variable removed. 2002-11-27 13:40:41 +00:00
Richard Levitte
821385ad00 Fix an unsigned/signed mismatch. 2002-11-19 11:28:28 +00:00
Bodo Möller
6c950e0dc9 'covenant HOWTO' (what to do about the Sun covenant if you modify the code) 
Submitted by: Bodo Moeller
 2002-10-29 10:58:07 +00:00
Bodo Möller
c237de058f don't write beyond buffer 
Submitted by: Nils Larsch
 2002-08-27 13:32:35 +00:00
Bodo Möller
7a8645d171 avoid SIGSEGV 
Submitted by: Nils Larsch, Douglas Stebila
 2002-08-07 07:53:47 +00:00
Bodo Möller
d28735a05b oops, undo previous change (was just for testing) 2002-08-03 18:28:34 +00:00
Bodo Möller
183847747a fix bn_expand2 2002-08-03 18:27:47 +00:00
Bodo Möller
bac6012308 use bn_wexpand instead of bn_expand2 (the latter is not needed here, 
and it does not yet work correctly)

Submitted by: Douglas Stebila
 2002-08-03 17:51:29 +00:00
Bodo Möller
909abce800 disable Sun divison algorithm by default 2002-08-02 18:26:02 +00:00
Bodo Möller
1dc920c8de Binary field arithmetic contributed by Sun Microsystems. 
The 'OPENSSL_NO_SUN_DIV' default is still subject to change,
so I didn't bother to finish the CHANGES entry yet.

Submitted by: Douglas Stebila <douglas.stebila@sun.com>, Sheueling Chang <sheueling.chang@sun.com>
(CHANGES entry by Bodo Moeller)
 2002-08-02 13:03:55 +00:00