test/test_aes.py

   1 #!/usr/bin/env python3
   2 from __future__ import unicode_literals
   3
   4 # Allow direct execution
   5 import os
   6 import sys
   7 import unittest
   8 sys.path.insert(0, os.path.dirname(os.path.dirname(os.path.abspath(__file__))))
   9
  10 from yt_dlp.aes import aes_decrypt, aes_encrypt, aes_cbc_decrypt, aes_cbc_encrypt, aes_decrypt_text
  11 from yt_dlp.utils import bytes_to_intlist, intlist_to_bytes
  12 import base64
  13
  14 # the encrypted data can be generate with 'devscripts/generate_aes_testdata.py'
  15
  16
  17 class TestAES(unittest.TestCase):
  18     def setUp(self):
  19         self.key = self.iv = [0x20, 0x15] + 14 * [0]
  20         self.secret_msg = b'Secret message goes here'
  21
  22     def test_encrypt(self):
  23         msg = b'message'
  24         key = list(range(16))
  25         encrypted = aes_encrypt(bytes_to_intlist(msg), key)
  26         decrypted = intlist_to_bytes(aes_decrypt(encrypted, key))
  27         self.assertEqual(decrypted, msg)
  28
  29     def test_cbc_decrypt(self):
  30         data = bytes_to_intlist(
  31             b"\x97\x92+\xe5\x0b\xc3\x18\x91ky9m&\xb3\xb5@\xe6'\xc2\x96.\xc8u\x88\xab9-[\x9e|\xf1\xcd"
  32         )
  33         decrypted = intlist_to_bytes(aes_cbc_decrypt(data, self.key, self.iv))
  34         self.assertEqual(decrypted.rstrip(b'\x08'), self.secret_msg)
  35
  36     def test_cbc_encrypt(self):
  37         data = bytes_to_intlist(self.secret_msg)
  38         encrypted = intlist_to_bytes(aes_cbc_encrypt(data, self.key, self.iv))
  39         self.assertEqual(
  40             encrypted,
  41             b"\x97\x92+\xe5\x0b\xc3\x18\x91ky9m&\xb3\xb5@\xe6'\xc2\x96.\xc8u\x88\xab9-[\x9e|\xf1\xcd")
  42
  43     def test_decrypt_text(self):
  44         password = intlist_to_bytes(self.key).decode('utf-8')
  45         encrypted = base64.b64encode(
  46             intlist_to_bytes(self.iv[:8])
  47             + b'\x17\x15\x93\xab\x8d\x80V\xcdV\xe0\t\xcdo\xc2\xa5\xd8ksM\r\xe27N\xae'
  48         ).decode('utf-8')
  49         decrypted = (aes_decrypt_text(encrypted, password, 16))
  50         self.assertEqual(decrypted, self.secret_msg)
  51
  52         password = intlist_to_bytes(self.key).decode('utf-8')
  53         encrypted = base64.b64encode(
  54             intlist_to_bytes(self.iv[:8])
  55             + b'\x0b\xe6\xa4\xd9z\x0e\xb8\xb9\xd0\xd4i_\x85\x1d\x99\x98_\xe5\x80\xe7.\xbf\xa5\x83'
  56         ).decode('utf-8')
  57         decrypted = (aes_decrypt_text(encrypted, password, 32))
  58         self.assertEqual(decrypted, self.secret_msg)
  59
  60
  61 if __name__ == '__main__':
  62     unittest.main()