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fix out-of-bound

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iceman1001 2020-05-27 22:36:14 +02:00
parent 4073b88ed7
commit 9d355a9b4e
1 changed files with 2 additions and 3 deletions
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5
client/src/cmdhf15.c
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@ -263,7 +263,6 @@ static int nxp_15693_print_signature(uint8_t *uid, uint8_t *signature) {
*/ */
uint8_t i; uint8_t i;
int res;
bool is_valid = false; bool is_valid = false;
for (i = 0; i < ARRAYLEN(nxp_15693_public_keys); i++) { for (i = 0; i < ARRAYLEN(nxp_15693_public_keys); i++) {
@ -271,14 +270,14 @@ static int nxp_15693_print_signature(uint8_t *uid, uint8_t *signature) {
uint8_t key[PUBLIC_ECDA_KEYLEN]; uint8_t key[PUBLIC_ECDA_KEYLEN];
param_gethex_to_eol(nxp_15693_public_keys[i].value, 0, key, PUBLIC_ECDA_KEYLEN, &dl); param_gethex_to_eol(nxp_15693_public_keys[i].value, 0, key, PUBLIC_ECDA_KEYLEN, &dl);
res = ecdsa_signature_r_s_verify(MBEDTLS_ECP_DP_SECP128R1, key, uid, 8, signature, 32, false); int res = ecdsa_signature_r_s_verify(MBEDTLS_ECP_DP_SECP128R1, key, uid, 8, signature, 32, false);
is_valid = (res == 0); is_valid = (res == 0);
if (is_valid) if (is_valid)
break; break;
} }
PrintAndLogEx(NORMAL, ""); PrintAndLogEx(NORMAL, "");
if (is_valid == false) { if (is_valid == false || i == ARRAYLEN(nxp_15693_public_keys)) {
PrintAndLogEx(SUCCESS, "Signature verification " _RED_("failed")); PrintAndLogEx(SUCCESS, "Signature verification " _RED_("failed"));
return PM3_ESOFT; return PM3_ESOFT;
} }