BUG_ON(!sig->data);
+ /* SM2 signatures always use the SM3 hash algorithm */
+ if (!sig->hash_algo || strcmp(sig->hash_algo, "sm3") != 0)
+ return -EINVAL;
+
ret = sm2_compute_z_digest(tfm_pkey, SM2_DEFAULT_USERID,
SM2_DEFAULT_USERID_LEN, dgst);
if (ret)
if (ret)
goto error_free_key;
- if (sig->pkey_algo && strcmp(sig->pkey_algo, "sm2") == 0 &&
- sig->data_size) {
+ if (strcmp(pkey->pkey_algo, "sm2") == 0 && sig->data_size) {
ret = cert_sig_digest_update(sig, tfm);
if (ret)
goto error_free_key;