diff --git a/libs/crypto_sig.py b/libs/crypto_sig.py
index 509db43..d6b2932 100644
--- a/libs/crypto_sig.py
+++ b/libs/crypto_sig.py
@@ -13,6 +13,7 @@ class Signature:
     key_data  = None
     pub_key   = None
     sig_data  = None
+    hash_data = None
     hh        = None
     self.hh = SHA512.new()
     self.genKeys()  
diff --git a/libs/jpg_picseal.py b/libs/jpg_picseal.py
index 7a1bf38..10fa893 100644
--- a/libs/jpg_picseal.py
+++ b/libs/jpg_picseal.py
@@ -7,7 +7,7 @@
 #
 class JpgPicSeal:
 
-	def __init_(self):
+	def __init_(self, sig):
 		self.sig = None
 		pass