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annotate libtommath/bn_mp_jacobi.c @ 1691:2d3745d58843

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try rearrange travis build matrix
author Matt Johnston <matt@ucc.asn.au>
date Tue, 26 May 2020 23:27:26 +0800
parents f52919ffd3b1
children
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f52919ffd3b1 update ltm to 1.1.0 and enable FIPS 186.4 compliant key-generation (#79)
Steffen Jaeckel <s_jaeckel@gmx.de>
parents: 1470
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1 #include "tommath_private.h"
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2 #ifdef BN_MP_JACOBI_C
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3 /* LibTomMath, multiple-precision integer library -- Tom St Denis
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4 *
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5 * LibTomMath is a library that provides multiple-precision
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6 * integer arithmetic as well as number theoretic functionality.
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7 *
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8 * The library was designed directly after the MPI library by
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9 * Michael Fromberger but has been written from scratch with
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10 * additional optimizations in place.
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11 *
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Steffen Jaeckel <s_jaeckel@gmx.de>
parents: 1470
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12 * SPDX-License-Identifier: Unlicense
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13 */
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14
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15 /* computes the jacobi c = (a | n) (or Legendre if n is prime)
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f52919ffd3b1 update ltm to 1.1.0 and enable FIPS 186.4 compliant key-generation (#79)
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16 * Kept for legacy reasons, please use mp_kronecker() instead
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17 */
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18 int mp_jacobi(const mp_int *a, const mp_int *n, int *c)
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19 {
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20 /* if a < 0 return MP_VAL */
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21 if (mp_isneg(a) == MP_YES) {
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22 return MP_VAL;
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parents: 1470
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23 }
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25 /* if n <= 0 return MP_VAL */
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26 if (mp_cmp_d(n, 0uL) != MP_GT) {
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parents: 1470
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27 return MP_VAL;
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28 }
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30 return mp_kronecker(a, n, c);
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31 }
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32 #endif
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parents: 1470
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34 /* ref: HEAD -> master, tag: v1.1.0 */
f52919ffd3b1 update ltm to 1.1.0 and enable FIPS 186.4 compliant key-generation (#79)
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parents: 1470
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35 /* git commit: 08549ad6bc8b0cede0b357a9c341c5c6473a9c55 */
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parents: 1470
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36 /* commit time: 2019-01-28 20:32:32 +0100 */