Add opt-out macro NO_DSA_PUBKEY_CHECK to allow skipping the newly added DSA public key check.

Author: kareem-wolfssl

.wolfssl_known_macro_extras

@@ -387,6 +387,7 @@ NO_CURVE448_KEY_EXPORT
 NO_CURVE448_KEY_IMPORT
 NO_CURVE448_SHARED_SECRET
 NO_DEV_URANDOM
+NO_DSA_PUBKEY_CHECK
 NO_ECC384
 NO_ECC521
 NO_ECC_CACHE_CURVE

wolfcrypt/src/dsa.c

@@ -1137,9 +1137,11 @@ int wc_DsaVerify_ex(const byte* digest, word32 digestSz, const byte* sig,
 
     /* Validate domain parameters and public key before doing any
      * signature math. */
+#ifndef NO_DSA_PUBKEY_CHECK
     ret = wc_DsaCheckPubKey(key);
     if (ret != 0)
         return ret;
+#endif
 
     do {
 #ifdef WOLFSSL_SMALL_STACK