client/core: drop support for truncated message sigs

decred · Sep 23, 2022 · 3cd4f10 · 3cd4f10
1 parent 29975ba
commit 3cd4f10
Showing 1 changed file with 1 addition and 4 deletions.
diff --git a/client/core/core.go b/client/core/core.go
@@ -7543,10 +7543,7 @@ func checkSigS256(msg, pkBytes, sigBytes []byte) error {
 	}
 	hash := sha256.Sum256(msg)
 	if !signature.Verify(hash[:], pubKey) {
-		// Might be an older buggy server. (V0PURGE)
-		if !signature.Verify(msg, pubKey) {
-			return fmt.Errorf("secp256k1 signature verification failed")
-		}
+		return fmt.Errorf("secp256k1 signature verification failed")
 	}
 	return nil
 }