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add a few ForceZeros to ecc fp

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toddouska
2015-03-23 11:44:33 -07:00
parent b841bc66c3
commit 66a65f84bd
1 changed files with 4 additions and 4 deletions
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8
wolfcrypt/src/ecc.c
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@@ -3565,7 +3565,7 @@ static int accel_fp_mul(int idx, mp_int* k, ecc_point *R, mp_int* modulus,
if (err == MP_OKAY) { if (err == MP_OKAY) {
z = 0; z = 0;
XMEMSET(kb, 0, KB_SIZE); ForceZero(kb, KB_SIZE);
/* map R back from projective space */ /* map R back from projective space */
if (map) { if (map) {
err = ecc_map(R, modulus, mp); err = ecc_map(R, modulus, mp);
@@ -3810,8 +3810,8 @@ static int accel_fp_mul2add(int idx1, int idx2,
} }
} }
XMEMSET(kb[0], 0, KB_SIZE); ForceZero(kb[0], KB_SIZE);
XMEMSET(kb[1], 0, KB_SIZE); ForceZero(kb[1], KB_SIZE);
#ifdef WOLFSSL_SMALL_STACK #ifdef WOLFSSL_SMALL_STACK
XFREE(kb[0], NULL, DYNAMIC_TYPE_TMP_BUFFER); XFREE(kb[0], NULL, DYNAMIC_TYPE_TMP_BUFFER);
@@ -4276,7 +4276,7 @@ ecEncCtx* wc_ecc_ctx_new(int flags, RNG* rng)
void wc_ecc_ctx_free(ecEncCtx* ctx) void wc_ecc_ctx_free(ecEncCtx* ctx)
{ {
if (ctx) { if (ctx) {
XMEMSET(ctx, 0, sizeof(ecEncCtx)); ForceZero(ctx, sizeof(ecEncCtx));
XFREE(ctx, 0, DYNAMIC_TYPE_ECC); XFREE(ctx, 0, DYNAMIC_TYPE_ECC);
} }
} }