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Diffstat (limited to '')
| -rw-r--r-- | test/test_aes.py | 152 |
1 files changed, 152 insertions, 0 deletions
diff --git a/test/test_aes.py b/test/test_aes.py new file mode 100644 index 0000000..a26abfd --- /dev/null +++ b/test/test_aes.py @@ -0,0 +1,152 @@ +#!/usr/bin/env python3 + +# Allow direct execution +import os +import sys +import unittest + +sys.path.insert(0, os.path.dirname(os.path.dirname(os.path.abspath(__file__)))) + + +import base64 + +from yt_dlp.aes import ( + aes_cbc_decrypt, + aes_cbc_decrypt_bytes, + aes_cbc_encrypt, + aes_ctr_decrypt, + aes_ctr_encrypt, + aes_decrypt, + aes_decrypt_text, + aes_ecb_decrypt, + aes_ecb_encrypt, + aes_encrypt, + aes_gcm_decrypt_and_verify, + aes_gcm_decrypt_and_verify_bytes, + key_expansion, + pad_block, +) +from yt_dlp.dependencies import Cryptodome +from yt_dlp.utils import bytes_to_intlist, intlist_to_bytes + +# 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 = b'\x97\x92+\xe5\x0b\xc3\x18\x91ky9m&\xb3\xb5@\xe6\x27\xc2\x96.\xc8u\x88\xab9-[\x9e|\xf1\xcd' + decrypted = intlist_to_bytes(aes_cbc_decrypt(bytes_to_intlist(data), self.key, self.iv)) + self.assertEqual(decrypted.rstrip(b'\x08'), self.secret_msg) + if Cryptodome.AES: + decrypted = aes_cbc_decrypt_bytes(data, intlist_to_bytes(self.key), intlist_to_bytes(self.iv)) + self.assertEqual(decrypted.rstrip(b'\x08'), self.secret_msg) + + def test_cbc_encrypt(self): + data = bytes_to_intlist(self.secret_msg) + encrypted = intlist_to_bytes(aes_cbc_encrypt(data, self.key, self.iv)) + self.assertEqual( + encrypted, + b'\x97\x92+\xe5\x0b\xc3\x18\x91ky9m&\xb3\xb5@\xe6\'\xc2\x96.\xc8u\x88\xab9-[\x9e|\xf1\xcd') + + def test_ctr_decrypt(self): + data = bytes_to_intlist(b'\x03\xc7\xdd\xd4\x8e\xb3\xbc\x1a*O\xdc1\x12+8Aio\xd1z\xb5#\xaf\x08') + decrypted = intlist_to_bytes(aes_ctr_decrypt(data, self.key, self.iv)) + self.assertEqual(decrypted.rstrip(b'\x08'), self.secret_msg) + + def test_ctr_encrypt(self): + data = bytes_to_intlist(self.secret_msg) + encrypted = intlist_to_bytes(aes_ctr_encrypt(data, self.key, self.iv)) + self.assertEqual( + encrypted, + b'\x03\xc7\xdd\xd4\x8e\xb3\xbc\x1a*O\xdc1\x12+8Aio\xd1z\xb5#\xaf\x08') + + def test_gcm_decrypt(self): + data = b'\x159Y\xcf5eud\x90\x9c\x85&]\x14\x1d\x0f.\x08\xb4T\xe4/\x17\xbd' + authentication_tag = b'\xe8&I\x80rI\x07\x9d}YWuU@:e' + + decrypted = intlist_to_bytes(aes_gcm_decrypt_and_verify( + bytes_to_intlist(data), self.key, bytes_to_intlist(authentication_tag), self.iv[:12])) + self.assertEqual(decrypted.rstrip(b'\x08'), self.secret_msg) + if Cryptodome.AES: + decrypted = aes_gcm_decrypt_and_verify_bytes( + data, intlist_to_bytes(self.key), authentication_tag, intlist_to_bytes(self.iv[:12])) + self.assertEqual(decrypted.rstrip(b'\x08'), self.secret_msg) + + def test_decrypt_text(self): + password = intlist_to_bytes(self.key).decode() + 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' + ).decode() + decrypted = (aes_decrypt_text(encrypted, password, 16)) + self.assertEqual(decrypted, self.secret_msg) + + password = intlist_to_bytes(self.key).decode() + encrypted = base64.b64encode( + intlist_to_bytes(self.iv[:8]) + + b'\x0b\xe6\xa4\xd9z\x0e\xb8\xb9\xd0\xd4i_\x85\x1d\x99\x98_\xe5\x80\xe7.\xbf\xa5\x83' + ).decode() + decrypted = (aes_decrypt_text(encrypted, password, 32)) + self.assertEqual(decrypted, self.secret_msg) + + def test_ecb_encrypt(self): + data = bytes_to_intlist(self.secret_msg) + encrypted = intlist_to_bytes(aes_ecb_encrypt(data, self.key)) + self.assertEqual( + encrypted, + b'\xaa\x86]\x81\x97>\x02\x92\x9d\x1bR[[L/u\xd3&\xd1(h\xde{\x81\x94\xba\x02\xae\xbd\xa6\xd0:') + + def test_ecb_decrypt(self): + data = bytes_to_intlist(b'\xaa\x86]\x81\x97>\x02\x92\x9d\x1bR[[L/u\xd3&\xd1(h\xde{\x81\x94\xba\x02\xae\xbd\xa6\xd0:') + decrypted = intlist_to_bytes(aes_ecb_decrypt(data, self.key, self.iv)) + self.assertEqual(decrypted.rstrip(b'\x08'), self.secret_msg) + + def test_key_expansion(self): + key = '4f6bdaa39e2f8cb07f5e722d9edef314' + + self.assertEqual(key_expansion(bytes_to_intlist(bytearray.fromhex(key))), [ + 0x4F, 0x6B, 0xDA, 0xA3, 0x9E, 0x2F, 0x8C, 0xB0, 0x7F, 0x5E, 0x72, 0x2D, 0x9E, 0xDE, 0xF3, 0x14, + 0x53, 0x66, 0x20, 0xA8, 0xCD, 0x49, 0xAC, 0x18, 0xB2, 0x17, 0xDE, 0x35, 0x2C, 0xC9, 0x2D, 0x21, + 0x8C, 0xBE, 0xDD, 0xD9, 0x41, 0xF7, 0x71, 0xC1, 0xF3, 0xE0, 0xAF, 0xF4, 0xDF, 0x29, 0x82, 0xD5, + 0x2D, 0xAD, 0xDE, 0x47, 0x6C, 0x5A, 0xAF, 0x86, 0x9F, 0xBA, 0x00, 0x72, 0x40, 0x93, 0x82, 0xA7, + 0xF9, 0xBE, 0x82, 0x4E, 0x95, 0xE4, 0x2D, 0xC8, 0x0A, 0x5E, 0x2D, 0xBA, 0x4A, 0xCD, 0xAF, 0x1D, + 0x54, 0xC7, 0x26, 0x98, 0xC1, 0x23, 0x0B, 0x50, 0xCB, 0x7D, 0x26, 0xEA, 0x81, 0xB0, 0x89, 0xF7, + 0x93, 0x60, 0x4E, 0x94, 0x52, 0x43, 0x45, 0xC4, 0x99, 0x3E, 0x63, 0x2E, 0x18, 0x8E, 0xEA, 0xD9, + 0xCA, 0xE7, 0x7B, 0x39, 0x98, 0xA4, 0x3E, 0xFD, 0x01, 0x9A, 0x5D, 0xD3, 0x19, 0x14, 0xB7, 0x0A, + 0xB0, 0x4E, 0x1C, 0xED, 0x28, 0xEA, 0x22, 0x10, 0x29, 0x70, 0x7F, 0xC3, 0x30, 0x64, 0xC8, 0xC9, + 0xE8, 0xA6, 0xC1, 0xE9, 0xC0, 0x4C, 0xE3, 0xF9, 0xE9, 0x3C, 0x9C, 0x3A, 0xD9, 0x58, 0x54, 0xF3, + 0xB4, 0x86, 0xCC, 0xDC, 0x74, 0xCA, 0x2F, 0x25, 0x9D, 0xF6, 0xB3, 0x1F, 0x44, 0xAE, 0xE7, 0xEC]) + + def test_pad_block(self): + block = [0x21, 0xA0, 0x43, 0xFF] + + self.assertEqual(pad_block(block, 'pkcs7'), + block + [0x0C, 0x0C, 0x0C, 0x0C, 0x0C, 0x0C, 0x0C, 0x0C, 0x0C, 0x0C, 0x0C, 0x0C]) + + self.assertEqual(pad_block(block, 'iso7816'), + block + [0x80, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00]) + + self.assertEqual(pad_block(block, 'whitespace'), + block + [0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20]) + + self.assertEqual(pad_block(block, 'zero'), + block + [0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00]) + + block = list(range(16)) + for mode in ('pkcs7', 'iso7816', 'whitespace', 'zero'): + self.assertEqual(pad_block(block, mode), block, mode) + + +if __name__ == '__main__': + unittest.main() |