DeforaNetworks/fwknop
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[libfko] minor memset to zero update for SHA3 digest tmp buf

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This commit is contained in:
Michael Rash 2016-05-13 09:40:09 -07:00
parent be3c356661
commit e5cfd5df19
1 changed files with 2 additions and 0 deletions
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2
lib/fko_decode.c
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@ -126,6 +126,7 @@ verify_digest(char *tbuf, int t_size, fko_ctx_t ctx)
/* Could potentially also have been SHA3_256 or SHA3_512 */
if(ctx->digest_type == FKO_DIGEST_SHA256)
{
memset(tbuf, 0, FKO_ENCODE_TMP_BUF_SIZE);
sha3_256_base64(tbuf, (unsigned char*)ctx->encoded_msg, ctx->encoded_msg_len);
if(constant_runtime_cmp(ctx->digest, tbuf, t_size) != 0)
{
@ -140,6 +141,7 @@ verify_digest(char *tbuf, int t_size, fko_ctx_t ctx)
}
else if(ctx->digest_type == FKO_DIGEST_SHA512)
{
memset(tbuf, 0, FKO_ENCODE_TMP_BUF_SIZE);
sha3_512_base64(tbuf, (unsigned char*)ctx->encoded_msg, ctx->encoded_msg_len);
if(constant_runtime_cmp(ctx->digest, tbuf, t_size) != 0)
{