From a7d9ded45dac709fbb9140ab3525a10a2a6d3c85 Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?Jaime=20Marqui=CC=81nez=20Ferra=CC=81ndiz?= Date: Sat, 21 Mar 2015 12:07:23 +0100 Subject: [PATCH] [test] Add tests for aes --- devscripts/generate_aes_testdata.py | 36 ++++++++++++++++++++++ test/test_aes.py | 47 +++++++++++++++++++++++++++++ 2 files changed, 83 insertions(+) create mode 100644 devscripts/generate_aes_testdata.py create mode 100644 test/test_aes.py diff --git a/devscripts/generate_aes_testdata.py b/devscripts/generate_aes_testdata.py new file mode 100644 index 000000000..ff66449eb --- /dev/null +++ b/devscripts/generate_aes_testdata.py @@ -0,0 +1,36 @@ +from __future__ import unicode_literals + +import codecs +import subprocess + +import os +import sys +sys.path.insert(0, os.path.dirname(os.path.dirname(os.path.abspath(__file__)))) + +from youtube_dl.utils import intlist_to_bytes +from youtube_dl.aes import aes_encrypt, key_expansion + +secret_msg = b'Secret message goes here' + + +def hex_str(int_list): + return codecs.encode(intlist_to_bytes(int_list), 'hex') + + +def openssl_encode(algo, key, iv): + cmd = ['openssl', 'enc', '-e', '-' + algo, '-K', hex_str(key), '-iv', hex_str(iv)] + prog = subprocess.Popen(cmd, stdin=subprocess.PIPE, stdout=subprocess.PIPE) + out, _ = prog.communicate(secret_msg) + return out + +iv = key = [0x20, 0x15] + 14 * [0] + +r = openssl_encode('aes-128-cbc', key, iv) +print('aes_cbc_decrypt') +print(repr(r)) + +password = key +new_key = aes_encrypt(password, key_expansion(password)) +r = openssl_encode('aes-128-ctr', new_key, iv) +print('aes_decrypt_text') +print(repr(r)) diff --git a/test/test_aes.py b/test/test_aes.py new file mode 100644 index 000000000..111b902e1 --- /dev/null +++ b/test/test_aes.py @@ -0,0 +1,47 @@ +#!/usr/bin/env python + +from __future__ import unicode_literals + +# Allow direct execution +import os +import sys +import unittest +sys.path.insert(0, os.path.dirname(os.path.dirname(os.path.abspath(__file__)))) + +from youtube_dl.aes import aes_decrypt, aes_encrypt, aes_cbc_decrypt, aes_decrypt_text +from youtube_dl.utils import bytes_to_intlist, intlist_to_bytes +import base64 + +# the encrypted data can be generate with 'devscripts/generate_aes_testdata.py' + + +class TestAES(unittest.TestCase): + def setUp(self): + self.key = self.iv = [0x20, 0x15] + 14 * [0] + self.secret_msg = b'Secret message goes here' + + def test_encrypt(self): + msg = b'message' + key = list(range(16)) + encrypted = aes_encrypt(bytes_to_intlist(msg), key) + decrypted = intlist_to_bytes(aes_decrypt(encrypted, key)) + self.assertEqual(decrypted, msg) + + def test_cbc_decrypt(self): + data = bytes_to_intlist( + b"\x97\x92+\xe5\x0b\xc3\x18\x91ky9m&\xb3\xb5@\xe6'\xc2\x96.\xc8u\x88\xab9-[\x9e|\xf1\xcd" + ) + decrypted = intlist_to_bytes(aes_cbc_decrypt(data, self.key, self.iv)) + self.assertEqual(decrypted.rstrip(b'\x08'), self.secret_msg) + + def test_decrypt_text(self): + password = intlist_to_bytes(self.key).decode('utf-8') + encrypted = base64.b64encode( + intlist_to_bytes(self.iv[:8]) + + b'\x17\x15\x93\xab\x8d\x80V\xcdV\xe0\t\xcdo\xc2\xa5\xd8ksM\r\xe27N\xae' + ) + decrypted = (aes_decrypt_text(encrypted, password, 16)) + self.assertEqual(decrypted, self.secret_msg) + +if __name__ == '__main__': + unittest.main()