Mercurial > dropbear
comparison libtommath/bn_mp_to_signed_bin.c @ 1655:f52919ffd3b1
update ltm to 1.1.0 and enable FIPS 186.4 compliant key-generation (#79)
* make key-generation compliant to FIPS 186.4
* fix includes in tommath_class.h
* update fuzzcorpus instead of error-out
* fixup fuzzing make-targets
* update Makefile.in
* apply necessary patches to ltm sources
* clean-up not required ltm files
* update to vanilla ltm 1.1.0
this already only contains the required files
* remove set/get double
author | Steffen Jaeckel <s_jaeckel@gmx.de> |
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date | Mon, 16 Sep 2019 15:50:38 +0200 |
parents | 8bba51a55704 |
children |
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1654:cc0fc5131c5c | 1655:f52919ffd3b1 |
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1 #include <tommath_private.h> | 1 #include "tommath_private.h" |
2 #ifdef BN_MP_TO_SIGNED_BIN_C | 2 #ifdef BN_MP_TO_SIGNED_BIN_C |
3 /* LibTomMath, multiple-precision integer library -- Tom St Denis | 3 /* LibTomMath, multiple-precision integer library -- Tom St Denis |
4 * | 4 * |
5 * LibTomMath is a library that provides multiple-precision | 5 * LibTomMath is a library that provides multiple-precision |
6 * integer arithmetic as well as number theoretic functionality. | 6 * integer arithmetic as well as number theoretic functionality. |
7 * | 7 * |
8 * The library was designed directly after the MPI library by | 8 * The library was designed directly after the MPI library by |
9 * Michael Fromberger but has been written from scratch with | 9 * Michael Fromberger but has been written from scratch with |
10 * additional optimizations in place. | 10 * additional optimizations in place. |
11 * | 11 * |
12 * The library is free for all purposes without any express | 12 * SPDX-License-Identifier: Unlicense |
13 * guarantee it works. | |
14 * | |
15 * Tom St Denis, [email protected], http://libtom.org | |
16 */ | 13 */ |
17 | 14 |
18 /* store in signed [big endian] format */ | 15 /* store in signed [big endian] format */ |
19 int mp_to_signed_bin (mp_int * a, unsigned char *b) | 16 int mp_to_signed_bin(const mp_int *a, unsigned char *b) |
20 { | 17 { |
21 int res; | 18 int res; |
22 | 19 |
23 if ((res = mp_to_unsigned_bin (a, b + 1)) != MP_OKAY) { | 20 if ((res = mp_to_unsigned_bin(a, b + 1)) != MP_OKAY) { |
24 return res; | 21 return res; |
25 } | 22 } |
26 b[0] = (a->sign == MP_ZPOS) ? (unsigned char)0 : (unsigned char)1; | 23 b[0] = (a->sign == MP_ZPOS) ? (unsigned char)0 : (unsigned char)1; |
27 return MP_OKAY; | 24 return MP_OKAY; |
28 } | 25 } |
29 #endif | 26 #endif |
30 | 27 |
31 /* ref: $Format:%D$ */ | 28 /* ref: HEAD -> master, tag: v1.1.0 */ |
32 /* git commit: $Format:%H$ */ | 29 /* git commit: 08549ad6bc8b0cede0b357a9c341c5c6473a9c55 */ |
33 /* commit time: $Format:%ai$ */ | 30 /* commit time: 2019-01-28 20:32:32 +0100 */ |