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Fix-up security assertion (b42b4bb for #453)

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Lonami Exo 2017-11-24 19:05:18 +01:00
parent b42b4bb326
commit 74ec6391d9
1 changed files with 4 additions and 2 deletions
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6
telethon/network/authenticator.py
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@ -113,8 +113,10 @@ def _do_authentication(connection):
key, iv = utils.generate_key_data_from_nonce( key, iv = utils.generate_key_data_from_nonce(
res_pq.server_nonce, new_nonce res_pq.server_nonce, new_nonce
) )
if server_dh_params.encrypted_answer % 16 != 0: if len(server_dh_params.encrypted_answer) % 16 != 0:
raise SecurityError('AES block size missmatch') # See PR#453
raise SecurityError('AES block size mismatch')
plain_text_answer = AES.decrypt_ige( plain_text_answer = AES.decrypt_ige(
server_dh_params.encrypted_answer, key, iv server_dh_params.encrypted_answer, key, iv
) )