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author | Steffen Jaeckel <s_jaeckel@gmx.de> | 2019-09-16 15:50:38 +0200 |
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committer | Steffen Jaeckel <s_jaeckel@gmx.de> | 2019-09-16 15:50:38 +0200 |
commit | 577b7c01fef2c4dd6ec499398e64aa2adeda7e8f (patch) | |
tree | 8d6f745fddd3a9c170f7c98603518f77b515da4f /libtommath/bn_mp_reduce_2k_l.c | |
parent | 663fc015dbb5b39ac6be6630a003f0530af734fb (diff) | |
download | dropbear-577b7c01fef2c4dd6ec499398e64aa2adeda7e8f.tar.gz |
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
Diffstat (limited to 'libtommath/bn_mp_reduce_2k_l.c')
-rw-r--r-- | libtommath/bn_mp_reduce_2k_l.c | 25 |
1 files changed, 11 insertions, 14 deletions
diff --git a/libtommath/bn_mp_reduce_2k_l.c b/libtommath/bn_mp_reduce_2k_l.c index 8e6eeb0..d8c6e1c 100644 --- a/libtommath/bn_mp_reduce_2k_l.c +++ b/libtommath/bn_mp_reduce_2k_l.c @@ -1,4 +1,4 @@ -#include <tommath_private.h> +#include "tommath_private.h" #ifdef BN_MP_REDUCE_2K_L_C /* LibTomMath, multiple-precision integer library -- Tom St Denis * @@ -9,17 +9,14 @@ * Michael Fromberger but has been written from scratch with * additional optimizations in place. * - * The library is free for all purposes without any express - * guarantee it works. - * - * Tom St Denis, tstdenis82@gmail.com, http://libtom.org + * SPDX-License-Identifier: Unlicense */ /* reduces a modulo n where n is of the form 2**p - d This differs from reduce_2k since "d" can be larger than a single digit. */ -int mp_reduce_2k_l(mp_int *a, mp_int *n, mp_int *d) +int mp_reduce_2k_l(mp_int *a, const mp_int *n, const mp_int *d) { mp_int q; int p, res; @@ -32,33 +29,33 @@ int mp_reduce_2k_l(mp_int *a, mp_int *n, mp_int *d) top: /* q = a/2**p, a = a mod 2**p */ if ((res = mp_div_2d(a, p, &q, a)) != MP_OKAY) { - goto ERR; + goto LBL_ERR; } /* q = q * d */ if ((res = mp_mul(&q, d, &q)) != MP_OKAY) { - goto ERR; + goto LBL_ERR; } /* a = a + q */ if ((res = s_mp_add(a, &q, a)) != MP_OKAY) { - goto ERR; + goto LBL_ERR; } if (mp_cmp_mag(a, n) != MP_LT) { if ((res = s_mp_sub(a, n, a)) != MP_OKAY) { - goto ERR; + goto LBL_ERR; } goto top; } -ERR: +LBL_ERR: mp_clear(&q); return res; } #endif -/* ref: $Format:%D$ */ -/* git commit: $Format:%H$ */ -/* commit time: $Format:%ai$ */ +/* ref: HEAD -> master, tag: v1.1.0 */ +/* git commit: 08549ad6bc8b0cede0b357a9c341c5c6473a9c55 */ +/* commit time: 2019-01-28 20:32:32 +0100 */ |