37 lines
966 B
C
37 lines
966 B
C
#include "tommath_private.h"
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#ifdef BN_MP_JACOBI_C
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/* LibTomMath, multiple-precision integer library -- Tom St Denis
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*
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* LibTomMath is a library that provides multiple-precision
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* integer arithmetic as well as number theoretic functionality.
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*
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* The library was designed directly after the MPI library by
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* Michael Fromberger but has been written from scratch with
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* additional optimizations in place.
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*
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* SPDX-License-Identifier: Unlicense
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*/
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/* computes the jacobi c = (a | n) (or Legendre if n is prime)
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* Kept for legacy reasons, please use mp_kronecker() instead
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*/
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int mp_jacobi(const mp_int *a, const mp_int *n, int *c)
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{
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/* if a < 0 return MP_VAL */
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if (mp_isneg(a) == MP_YES) {
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return MP_VAL;
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}
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/* if n <= 0 return MP_VAL */
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if (mp_cmp_d(n, 0uL) != MP_GT) {
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return MP_VAL;
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}
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return mp_kronecker(a, n, c);
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}
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#endif
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/* ref: $Format:%D$ */
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/* git commit: $Format:%H$ */
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/* commit time: $Format:%ai$ */
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