kc3-lang/libtommath/bn_mp_clear.c
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Hash : 61d9e528
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Date : 2019-05-11T10:22:20
hardening: add MP_ZERO_BUFFER, MP_ZERO_DIGITS * (!) Always zero buffer before freeing if MP_NO_ZERO_ON_FREE is not defined * Add MP_NO_ZERO_ON_FREE to disable hardening * Add MP_ZERO_BUFFER, MP_ZERO_DIGITS, MP_FREE_BUFFFER, MP_FREE_DIGITS * Never use MP_FREE directly, use MP_FREE_DIGITS or MP_FREE_BUFFER * Add MP_USE_MEMSET to use memset instead of loop * Disable astyle backups which are annonying in the times of git
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bn_mp_clear.c
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#include "tommath_private.h" #ifdef BN_MP_CLEAR_C /* LibTomMath, multiple-precision integer library -- Tom St Denis */ /* SPDX-License-Identifier: Unlicense */ /* clear one (frees) */ void mp_clear(mp_int *a) { /* only do anything if a hasn't been freed previously */ if (a->dp != NULL) { /* free ram */ MP_FREE_DIGITS(a->dp, a->alloc); /* reset members to make debugging easier */ a->dp = NULL; a->alloc = a->used = 0; a->sign = MP_ZPOS; } } #endif