accounts/keystore: handle error for invalid key in DecryptKey (#27432)

Co-authored-by: KAI <kaili@coinsummer.io>
Co-authored-by: Felix Lange <fjl@twurst.com>

accounts/keystore/passphrase.go

@@ -225,10 +225,13 @@ func DecryptKey(keyjson []byte, auth string) (*Key, error) {
 	if err != nil {
 		return nil, err
 	}
-	key := crypto.ToECDSAUnsafe(keyBytes)
+	key, err := crypto.ToECDSA(keyBytes)
+	if err != nil {
+		return nil, fmt.Errorf("invalid key: %w", err)
+	}
 	id, err := uuid.FromBytes(keyId)
 	if err != nil {
-		return nil, err
+		return nil, fmt.Errorf("invalid UUID: %w", err)
 	}
 	return &Key{
 		Id:         id,