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comparison libtommath/bn_mp_to_signed_bin.c @ 1655:f52919ffd3b1

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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>
date Mon, 16 Sep 2019 15:50:38 +0200
parents 8bba51a55704
children
comparison
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1654:cc0fc5131c5c 1655:f52919ffd3b1
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 */