More explicitly label pk parts in verification

This commit is contained in:
Joost Rijneveld 2017-12-06 15:14:50 +01:00
parent 758a6349fc
commit b9c65792e5
No known key found for this signature in database
GPG Key ID: A4FE39CF49CBC553

View File

@ -160,6 +160,7 @@ int xmssmt_core_sign_open(const xmss_params *params,
const unsigned char *sm, unsigned long long smlen, const unsigned char *sm, unsigned long long smlen,
const unsigned char *pk) const unsigned char *pk)
{ {
const unsigned char *pub_root = pk;
const unsigned char *pub_seed = pk + params->n; const unsigned char *pub_seed = pk + params->n;
unsigned char wots_pk[params->wots_sig_bytes]; unsigned char wots_pk[params->wots_sig_bytes];
unsigned char leaf[params->n]; unsigned char leaf[params->n];
@ -221,7 +222,7 @@ int xmssmt_core_sign_open(const xmss_params *params,
} }
/* Check if the root node equals the root node in the public key. */ /* Check if the root node equals the root node in the public key. */
if (memcmp(root, pk, params->n)) { if (memcmp(root, pub_root, params->n)) {
/* If not, zero the message */ /* If not, zero the message */
memset(m, 0, *mlen); memset(m, 0, *mlen);
*mlen = 0; *mlen = 0;