Update app.py

app.py

@@ -26,6 +26,32 @@ iface.launch()
 
 
 
+def AES_encrypt(User_message,seed, publicKey,encoding = 1, padding = 30):
+  #number conversion to encrypt non-english content
+  User_message_numbered = (int.from_bytes(bytes(User_message, 'utf-16'), "big"))
+  #padding
+  front_padding = ''.join(random.choices(string.digits, k=padding)) #string.ascii_lowercase +
+  back_padding = ''.join(random.choices(string.digits, k=padding)) #string.ascii_lowercase +
+  msg = front_padding + str(User_message_numbered) + back_padding
+  msg_len =len(msg) #total number of charachters in the msg
+  permutation_list = list(range(0,msg_len))
+  random.seed(seed)
+  random.shuffle(permutation_list)
+  shffled_msg_list = [msg[i] for i in permutation_list]
+  shffled_msg = ''.join(shffled_msg_list)
+  #print(shffled_msg)
+  encMessage = AESCipher(str(publicKey.n)).encrypt(shffled_msg)
+  if encoding == 0:
+    encMessage_int = encMessage
+  elif encoding == 1:
+    encMessage_int = encMessage.decode('utf-16')
+  else:
+    encMessage_int = int.from_bytes(encMessage, "big")
+  return encMessage_int
+
+
+
+
 class AESCipher(object):
     def __init__(self, key):
         self.bs = AES.block_size
@@ -45,3 +71,6 @@ class AESCipher(object):
     @staticmethod
     def _unpad(s):
         return s[:-ord(s[len(s)-1:])]
+
+def invert_perm_list(p):
+    return [p.index(l) for l in range(len(p))]