End of the project

crypt_and_decrypt.py

@@ -32,6 +32,7 @@ def chiffrementAffineByte(data: bytes, keya: int, keyb: int) -> bytes:
     y = (keya*x+keyb)%256
     return bytes([alphabet[y]])
 
+
 def inverse(a):
     """ Renvoie l'inverse du module de a et x par 256
     """
@@ -40,6 +41,7 @@ def inverse(a):
             x += 1
     return x
 
+
 def dechiffrementAffineByte(data: bytes, keya: int, keyb: int) -> bytes:
     """ Renvoie le byte data décrypté avec le chiffrement affine
     """

find_key.py

@@ -55,6 +55,7 @@ def findKeywrite(data: bytes, dataout: bytes, filenameOut = 'result'):
                     fdout.write(str(keyb))
                     fdout.write("\n")
 
+
 def findKeyList(data: bytes, dataout: bytes):
     """Renvoie la liste des couples de clé possible pour que data soit égale à dataout.
     """
@@ -68,6 +69,7 @@ def findKeyList(data: bytes, dataout: bytes):
                     L.append(t)
     return L
 
+
 def comparKey(L: list, M: list) -> tuple:
     """Compare les couples de clé valeur et renvoie le couple commun aux 2 listes M et L.
     """
@@ -75,3 +77,4 @@ def comparKey(L: list, M: list) -> tuple:
         for y in range(len(M)):
             if L[i] == M[y]:
                 return L[i]
+                

jeudetest.py

@@ -3,19 +3,21 @@ from find_key import *
 
 
 
-#print(sortbyteFreq(byteFreq("data")))
-#findKeywrite(b'\xaa', b'\x20', "keyoutspace")
-#findKeywrite(b'\x31', b'\x65', "keyoute")
+print(sortbyteFreq(byteFreq("data")))
+findKeywrite(b'\xaa', b'\x20', "keyoutspace")
+findKeywrite(b'\x31', b'\x65', "keyoute")
 #print(findKeyList(b'\xaa', b'\x20'))
-#print(comparKey(findKeyList(b'\xaa', b'\x20'), findKeyList(b'\x31', b'\x65')))
+print(comparKey(findKeyList(b'\xaa', b'\x20'), findKeyList(b'\x31', b'\x65')))
 #cryptByteFile('tescrypt.txt', 1, 3, "resulttest2")
 #cryptByteFile('data', 1, 3, 'resultcryptdata')
 #cryptByteFile('monkey.jpg', 1, 3)
 #decryptByteFile('resulttest2', 1, 3, "decryptresult2")
 #decryptByteFile('resultcryptdata', 1, 3, 'resultdecryptdata')
-decryptByteFile('data', 
-                comparKey(findKeyList(b'\xaa', b'\x20'), findKeyList(b'\x31', b'\x65'))[0],
-                comparKey(findKeyList(b'\xaa', b'\x20'), findKeyList(b'\x31', b'\x65'))[1], 
-                "dataDecrypted")
+#decryptByteFile('data', 
+#                comparKey(findKeyList(b'\xaa', b'\x20'), findKeyList(b'\x31', b'\x65'))[0],
+#                comparKey(findKeyList(b'\xaa', b'\x20'), findKeyList(b'\x31', b'\x65'))[1], 
+#                "dataDecrypted")
 #cryptByteFile('enemy-from-the-series-arcane-league-of-legends.mp3', 45, 76, 'enemyCrypted')
 #decryptByteFile('enemyCrypted', 45, 76, 'enemyDeCyted.mp3')
+cryptByteFile('../enemy-from-the-series-arcane-league-of-legends.mp3', 45, 85, '../enemyCrypted')
+decryptByteFile('../enemyCrypted', 45, 85, '../enemyDeCrypted')

jeudetestdemo.py

@@ -0,0 +1,7 @@
+from crypt_and_decrypt import *
+from find_key import *
+
+cryptByteFile('../demo.mp3', 45, 85, '../demoCrypted.mp3')
+print('Crypted')
+decryptByteFile('../demoCrypted.mp3', 45, 85, '../demoDeCrypted.mp3')
+print('Decrypted')