Latest update.

crypto/sm2/sm2_pmeth.c

@@ -232,6 +232,10 @@ static int pkey_sm2_ctrl(EVP_PKEY_CTX *ctx, int type, int p1, void *p2)
 static int pkey_sm2_ctrl_str(EVP_PKEY_CTX *ctx,
                              const char *type, const char *value)
 {
+    uint8_t *hex_id;
+    long hex_len = 0;
+    int ret = 0;
+
     if (strcmp(type, "ec_paramgen_curve") == 0) {
         int nid = NID_undef;
 
@@ -255,6 +259,21 @@ static int pkey_sm2_ctrl_str(EVP_PKEY_CTX *ctx,
     } else if (strcmp(type, "sm2_id") == 0) {
         return pkey_sm2_ctrl(ctx, EVP_PKEY_CTRL_SET1_ID,
                              (int)strlen(value), (void *)value);
+    } else if (strcmp(type, "sm2_hex_id") == 0) {
+        /*
+         * TODO(3.0): reconsider the name "sm2_hex_id", OR change
+         * OSSL_PARAM_construct_from_text() / OSSL_PARAM_allocate_from_text()
+         * to handle infix "_hex_"
+         */
+        hex_id = OPENSSL_hexstr2buf((const char *)value, &hex_len);
+        if (hex_id == NULL) {
+            SM2err(SM2_F_PKEY_SM2_CTRL_STR, ERR_R_PASSED_INVALID_ARGUMENT);
+            return 0;
+        }
+        ret = pkey_sm2_ctrl(ctx, EVP_PKEY_CTRL_SET1_ID, (int)hex_len,
+                            (void *)hex_id);
+        OPENSSL_free(hex_id);
+        return ret;
     }
 
     return -2;