Mercurial > dropbear
diff libtommath/bn_mp_mulmod.c @ 1692:1051e4eea25a
Update LibTomMath to 1.2.0 (#84)
* update C files
* update other files
* update headers
* update makefiles
* remove mp_set/get_double()
* use ltm 1.2.0 API
* update ltm_desc
* use bundled tommath if system-tommath is too old
* XMALLOC etc. were changed to MP_MALLOC etc.
author | Steffen Jaeckel <s@jaeckel.eu> |
---|---|
date | Tue, 26 May 2020 17:36:47 +0200 |
parents | f52919ffd3b1 |
children |
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--- a/libtommath/bn_mp_mulmod.c Tue May 26 23:27:26 2020 +0800 +++ b/libtommath/bn_mp_mulmod.c Tue May 26 17:36:47 2020 +0200 @@ -1,37 +1,25 @@ #include "tommath_private.h" #ifdef BN_MP_MULMOD_C -/* LibTomMath, multiple-precision integer library -- Tom St Denis - * - * LibTomMath is a library that provides multiple-precision - * integer arithmetic as well as number theoretic functionality. - * - * The library was designed directly after the MPI library by - * Michael Fromberger but has been written from scratch with - * additional optimizations in place. - * - * SPDX-License-Identifier: Unlicense - */ +/* LibTomMath, multiple-precision integer library -- Tom St Denis */ +/* SPDX-License-Identifier: Unlicense */ /* d = a * b (mod c) */ -int mp_mulmod(const mp_int *a, const mp_int *b, const mp_int *c, mp_int *d) +mp_err mp_mulmod(const mp_int *a, const mp_int *b, const mp_int *c, mp_int *d) { - int res; - mp_int t; + mp_err err; + mp_int t; - if ((res = mp_init_size(&t, c->used)) != MP_OKAY) { - return res; + if ((err = mp_init_size(&t, c->used)) != MP_OKAY) { + return err; } - if ((res = mp_mul(a, b, &t)) != MP_OKAY) { - mp_clear(&t); - return res; + if ((err = mp_mul(a, b, &t)) != MP_OKAY) { + goto LBL_ERR; } - res = mp_mod(&t, c, d); + err = mp_mod(&t, c, d); + +LBL_ERR: mp_clear(&t); - return res; + return err; } #endif - -/* ref: HEAD -> master, tag: v1.1.0 */ -/* git commit: 08549ad6bc8b0cede0b357a9c341c5c6473a9c55 */ -/* commit time: 2019-01-28 20:32:32 +0100 */