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Author SHA1 Message Date
Richard Levitte
6ab285bf4c I think I got it now. Apparently, the case of having to shift down 
the divisor was a bit more complex than I first saw.  The lost bit
can't just be discarded, as there are cases where it is important.
For example, look at dividing 320000 with 80000 vs. 80001 (all
decimals), the difference is crucial.  The trick here is to check if
that lost bit was 1, and in that case, do the following:

1. subtract the quotient from the remainder
2. as long as the remainder is negative, add the divisor (the whole
   divisor, not the shofted down copy) to it, and decrease the
   quotient by one.

There's probably a nice mathematical proof for this already, but I
won't bother with that, unless someone requests it from me.
 2002-12-02 21:31:45 +00:00
Richard Levitte
1d3159bcca Make some names consistent. 2002-12-02 02:40:27 +00:00
Richard Levitte
f60ceb54eb Through some experimentation and thinking, I think I finally got the 
proper implementation of bn_div_words() for VAX.

If the tests go through well, the next step will be to test on Alpha.
 2002-12-02 02:28:27 +00:00
Richard Levitte
0f995b2f40 Small bugfix: even when r == d, we need to adjust r and q. 
PR: 366
 2002-12-01 02:17:23 +00:00
Richard Levitte
a678430602 Redo the VAX assembler version of bn_div_words(). 
PR: 366
 2002-12-01 00:49:36 +00:00
Richard Levitte
43d601641f A few more memset()s converted to OPENSSL_cleanse(). 
I *think* I got them all covered by now, bu please, if you find any more,
tell me and I'll correct it.
PR: 343
 2002-11-29 11:30:45 +00:00
Richard Levitte
55f78baf32 Have all tests use EXIT() to exit rather than exit(), since the latter doesn't 
always give the expected result on some platforms.
 2002-11-28 18:54:30 +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
Richard Levitte
8d6e60486f Fix to build better with DJGPP. 
PR: 338

Here's the description, submitted by Gisle Vanem <giva@bgnett.no>:

1. sock_init() renamed to ssl_sock_init() in ./apps/s_socket.c due
   to name-clash with Watt-32.

2. rand() renamed to Rand() in ./crypto/bn/divtest.c due to name-clash
   with <stdlib.h>

3. Added calls to dbug_init()/sock_init() in some demo programs.

4. Changed cflags/lflags in configure. Watt-32 install root now taken
   from $WATT_ROOT.
 2002-11-14 11:22:01 +00:00
Bodo Möller
b53e44e572 implement and use new macros BN_get_sign(), BN_set_sign() 
Submitted by: Nils Larsch
 2002-11-04 13:17:22 +00:00
Richard Levitte
b5148cf1f7 synchronise util/libeay.num with the 0.9.7-stable variant (guys, this 
is something we really need to keep track of!).
make update
 2002-10-29 14:48:57 +00:00
Bodo Möller
90a617e050 avoid warnings ('index' shadows global declaration) 
Submitted by: Nils Larsch
 2002-10-29 11:50:20 +00:00
Bodo Möller
259cdf2af9 Sun has agreed to removing the covenant language from most files. 
Submitted by: Sheueling Chang <Sheueling.Chang@Sun.COM>
 2002-10-29 10:59:32 +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
19b8d06a79 clean up new code for NIST primes 
create new lock CRYPTO_LOCK_BN to avoid race condition
 2002-10-28 14:02:19 +00:00
Bodo Möller
5c6bf03117 fast reduction for NIST curves 
Submitted by: Nils Larsch
 2002-10-28 13:23:24 +00:00
Richard Levitte
e15ea3d9e1 When BN_add_word() reaches top, it shouldn't try to add the the corresponding 
word, since that word may not be zero.
 2002-10-14 11:33:32 +00:00
Richard Levitte
001ab3abad Use double dashes so makedepend doesn't misunderstand the flags we 
give it.
For 0.9.7 and up, that means util/domd needs to remove those double
dashes from the argument list when gcc is used to find the
dependencies.
 2002-10-09 13:25:12 +00:00
Bodo Möller
c237de058f don't write beyond buffer 
Submitted by: Nils Larsch
 2002-08-27 13:32:35 +00:00
Richard Levitte
f13ddd5d0a Do not use the word 'modulus', which is a class template name in VC++ 6.0/SP5. 
PR: 216, point 3
 2002-08-12 21:20:25 +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
33d4e690cc fix bn_expand2 2002-08-02 18:23:55 +00:00
Bodo Möller
d3bcbba45c remove obsolete part of comment 2002-08-02 15:13:10 +00:00
Bodo Möller
0903e56196 remove obsoleted disabled code 2002-08-02 15:07:08 +00:00
Bodo Möller
95ecacf8a2 Let BN_rand_range() abort with an error after 100 iterations 
without success.
 2002-08-02 15:02:03 +00:00
Bodo Möller
6fb60a84dd Change BN_mod_sqrt() so that it verifies that the input value is 
really the square of the return value.
 2002-08-02 14:57:53 +00:00
Bodo Möller
5af7d1a3b8 move GF2m tests to the end 2002-08-02 14:49:59 +00:00
Bodo Möller
35b73a1f20 Rename implementations of method functions so that they match 
the new method names where _GF... suffixes have been removed.

Revert changes to ..._{get/set}_Jprojective_coordinates_...:
The current implementation for ECC over binary fields does not use
projective coordinates, and if it did, it would not use Jacobian
projective coordinates; so it's OK to use the ..._GFp prefix for all
this.

Add author attributions to some files so that it doesn't look
as if Sun wrote all of this :-)
 2002-08-02 14:28:37 +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
Bodo Möller
12593e6f45 Move zeroing from bn_expand_internal() to bn_expand2() so that it 
happens reliably, even if the BIGNUM is already sufficiently large.

[Note that the bn_expand()/bn_wexpand() macros call bn_expand2() only
if the BIGNUM actually has to grow, so this change does not add any
new overhead as currently bn_expand2() is never called directly.]
 2002-07-25 12:12:39 +00:00
Bodo Möller
5c9396e37c remove obsolete comment 2002-07-10 08:39:05 +00:00
Richard Levitte
17085b022c Pass CFLAG to dependency makers, so non-standard system include paths are 
handled properly.
Part of PR 75
 2002-06-27 16:39:25 +00:00
Richard Levitte
451dc18f10 Add support for DJGPP. 
PR: 75
 2002-06-13 20:42:35 +00:00
Richard Levitte
9cdf87f194 Check the return values where memory allocation failures may happen. 
PR: 49
 2002-05-30 16:47:45 +00:00
Dr. Stephen Henson
dc014d43af Fallback to normal multiply if n2 == 8 and dna or dnb is not zero 
in bn_mul_recursive.

This is (hopefully) what was triggering bignum errors on 64 bit
platforms and causing the BN_mod_mul test to fail.
 2002-05-10 22:18:13 +00:00
Dr. Stephen Henson
2f9cf160e4 Avoid gcc warning: BN_DEC_CONV when SIXTY_FOUR_BIT is defined is unsigned. 2002-05-10 22:07:37 +00:00
Bodo Möller
d5c21afd4b add missing declaration 
Submitted by: Nils Larsch
 2002-03-25 23:15:21 +00:00
Bodo Möller
4d7072f4b5 remove redundant ERR_load_... declarations 2001-12-17 19:22:23 +00:00
Bodo Möller
66df02fd98 fix BN_rand_range 2001-12-14 10:09:29 +00:00
Richard Levitte
b476df64a1 make update 
perl util/mkerr.pl -recurse -write -rebuild
 2001-11-15 12:25:14 +00:00
Bodo Möller
c5d4ab7e35 adjust to OpenSSL_0_9_6-stable version 2001-11-09 13:09:11 +00:00
Ulf Möller
5dd955dcd2 openbsd-x86 macros 
Submitted by: Toomas Kiisk <vix@cyber.ee>
 2001-10-14 00:57:30 +00:00
Richard Levitte
f8000b9345 'make update' 2001-10-04 07:49:09 +00:00
Geoff Thorpe
534aaf3731 "make update". 2001-09-25 20:39:59 +00:00
Ulf Möller
d98a4b7366 bug fix: bn_sqr_recursive output is twice its input size. 2001-09-05 04:43:43 +00:00