26 lines
492 B
C
26 lines
492 B
C
#include "tommath_private.h"
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#ifdef BN_MP_SQRMOD_C
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/* LibTomMath, multiple-precision integer library -- Tom St Denis */
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/* SPDX-License-Identifier: Unlicense */
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/* c = a * a (mod b) */
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mp_err mp_sqrmod(const mp_int *a, const mp_int *b, mp_int *c)
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{
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mp_err err;
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mp_int t;
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if ((err = mp_init(&t)) != MP_OKAY) {
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return err;
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}
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if ((err = mp_sqr(a, &t)) != MP_OKAY) {
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goto LBL_ERR;
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}
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err = mp_mod(&t, b, c);
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LBL_ERR:
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mp_clear(&t);
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return err;
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}
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#endif
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