diff --git a/libs/crypto_pub.py b/libs/crypto_sig.py
similarity index 97%
rename from libs/crypto_pub.py
rename to libs/crypto_sig.py
index 3430b8e..509db43 100644
--- a/libs/crypto_pub.py
+++ b/libs/crypto_sig.py
@@ -1,5 +1,5 @@
 #
-#
+# This Class Provides Crypto Functions
 #
 import logging
 from Crypto.Signature import PKCS1_v1_5
@@ -7,7 +7,6 @@ from Crypto.PublicKey import RSA
 from Crypto.Hash import SHA512
 
 class Signature:
-  
 
   #
   def __init__(self):
diff --git a/libs/jpg_bin.py b/libs/jpg_bin.py
index 3c65454..a6fbd23 100644
--- a/libs/jpg_bin.py
+++ b/libs/jpg_bin.py
@@ -27,10 +27,6 @@ class JpgBin:
 
   BUF_CHUNK_SIZE = 2048
 
-  markers  = {
-    'SOS': 0xffd9
-  }
-
   def __init__(self):
     self.data_buf = None
     self.data_idx = 0
diff --git a/libs/jpg_bin_w.py b/libs/jpg_bin_w.py
index 10731f9..13830f6 100644
--- a/libs/jpg_bin_w.py
+++ b/libs/jpg_bin_w.py
@@ -3,7 +3,8 @@
 #
 class JpgBinWrite:
 
-  soi = 0xffd8
+  soi_marker     = 0xffd8
+  picseal_marker = 0xffe0
 
 	def __init__(self):
 		pass