3 uQhÀã@sdZddlZGdd„dƒZdS)z1 This module holds the AESModeCTR wrapper class. éNc@s(eZdZdZdd„Zdd„Zdd„ZdS) Ú AESModeCTRz>Wrapper around pyaes.AESModeOfOperationCTR mode with custom IVcCsJt|tƒst‚tj|ƒ|_t|tƒs(t‚t|ƒdks8t‚t|ƒ|jj_dS)zÊ Initializes the AES CTR mode with the given key/iv pair. :param key: the key to be used as bytes. :param iv: the bytes initialization vector. Must have a length of 16. éN) Ú isinstanceÚbytesÚAssertionErrorÚpyaesZAESModeOfOperationCTRÚ_aesÚlenÚlistÚ_counter)ÚselfÚkeyZiv©rú:/tmp/pip-build-2nz6shyl/telethon/telethon/crypto/aesctr.pyÚ__init__ s  zAESModeCTR.__init__cCs |jj|ƒS)z¢ Encrypts the given plain text through AES CTR. :param data: the plain text to be encrypted. :return: the encrypted cipher text. )rÚencrypt)r ÚdatarrrrszAESModeCTR.encryptcCs |jj|ƒS)z¢ Decrypts the given cipher text through AES CTR :param data: the cipher text to be decrypted. :return: the decrypted plain text. )rÚdecrypt)r rrrrr#szAESModeCTR.decryptN)Ú__name__Ú __module__Ú __qualname__Ú__doc__rrrrrrrrs r)rrrrrrrÚs