Raphaël G. Git Repositories - youtubedl/blob - test/test_aes.py

   1 #!/usr/bin/env python
   2
   3 from __future__ import unicode_literals
   4
   5 # Allow direct execution
   6 import os
   7 import sys
   8 import unittest
   9 sys.path.insert(0, os.path.dirname(os.path.dirname(os.path.abspath(__file__))))
  10
  11 from youtube_dl.aes import aes_decrypt, aes_encrypt, aes_cbc_decrypt, aes_cbc_encrypt, aes_decrypt_text
  12 from youtube_dl.utils import bytes_to_intlist, intlist_to_bytes
  13 import base64
  14
  15 # the encrypted data can be generate with 'devscripts/generate_aes_testdata.py'
  16
  17
  18 class TestAES(unittest.TestCase):
  19     def setUp(self):
  20         self.key = self.iv = [0x20, 0x15] + 14 * [0]
  21         self.secret_msg = b'Secret message goes here'
  22
  23     def test_encrypt(self):
  24         msg = b'message'
  25         key = list(range(16))
  26         encrypted = aes_encrypt(bytes_to_intlist(msg), key)
  27         decrypted = intlist_to_bytes(aes_decrypt(encrypted, key))
  28         self.assertEqual(decrypted, msg)
  29
  30     def test_cbc_decrypt(self):
  31         data = bytes_to_intlist(
  32             b"\x97\x92+\xe5\x0b\xc3\x18\x91ky9m&\xb3\xb5@\xe6'\xc2\x96.\xc8u\x88\xab9-[\x9e|\xf1\xcd"
  33         )
  34         decrypted = intlist_to_bytes(aes_cbc_decrypt(data, self.key, self.iv))
  35         self.assertEqual(decrypted.rstrip(b'\x08'), self.secret_msg)
  36
  37     def test_cbc_encrypt(self):
  38         data = bytes_to_intlist(self.secret_msg)
  39         encrypted = intlist_to_bytes(aes_cbc_encrypt(data, self.key, self.iv))
  40         self.assertEqual(
  41             encrypted,
  42             b"\x97\x92+\xe5\x0b\xc3\x18\x91ky9m&\xb3\xb5@\xe6'\xc2\x96.\xc8u\x88\xab9-[\x9e|\xf1\xcd")
  43
  44     def test_decrypt_text(self):
  45         password = intlist_to_bytes(self.key).decode('utf-8')
  46         encrypted = base64.b64encode(
  47             intlist_to_bytes(self.iv[:8])
  48             + b'\x17\x15\x93\xab\x8d\x80V\xcdV\xe0\t\xcdo\xc2\xa5\xd8ksM\r\xe27N\xae'
  49         ).decode('utf-8')
  50         decrypted = (aes_decrypt_text(encrypted, password, 16))
  51         self.assertEqual(decrypted, self.secret_msg)
  52
  53         password = intlist_to_bytes(self.key).decode('utf-8')
  54         encrypted = base64.b64encode(
  55             intlist_to_bytes(self.iv[:8])
  56             + b'\x0b\xe6\xa4\xd9z\x0e\xb8\xb9\xd0\xd4i_\x85\x1d\x99\x98_\xe5\x80\xe7.\xbf\xa5\x83'
  57         ).decode('utf-8')
  58         decrypted = (aes_decrypt_text(encrypted, password, 32))
  59         self.assertEqual(decrypted, self.secret_msg)
  60
  61
  62 if __name__ == '__main__':
  63     unittest.main()