Edit File: DES3.cpython-311.pyc
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It will absorb named parameters in the process.�keyzMissing 'key' parameterz,Error %X while instantiating the TDES cipher)�pop�KeyError� TypeErrorr$ r � _raw_des3_lib�DES3_start_operation�DES3_stop_operationr r r � address_ofr r �get)�dict_parametersr" r& �start_operation�stop_operation�cipher�results r �_create_base_cipherr4 Z s� � �3� �$�$�U�+�+���� � 3� 3� 3��1�2�2�2�3���� �D��L�L� )� )�C�#�8�O�"�6�N� �]�]�F� �_�S� %�c�#�h�h� /� /� #� .� .� 0� 0�2� 2�F� � #��G�!�"� #� #� #� �� � � � �n� 5� 5�5s � �2c �P � t t j t | |g|�R i |��S )a Create a new Triple DES cipher. :param key: The secret key to use in the symmetric cipher. It must be 16 or 24 byte long. The parity bits will be ignored. :type key: bytes/bytearray/memoryview :param mode: The chaining mode to use for encryption or decryption. :type mode: One of the supported ``MODE_*`` constants :Keyword Arguments: * **iv** (*bytes*, *bytearray*, *memoryview*) -- (Only applicable for ``MODE_CBC``, ``MODE_CFB``, ``MODE_OFB``, and ``MODE_OPENPGP`` modes). The initialization vector to use for encryption or decryption. For ``MODE_CBC``, ``MODE_CFB``, and ``MODE_OFB`` it must be 8 bytes long. For ``MODE_OPENPGP`` mode only, it must be 8 bytes long for encryption and 10 bytes for decryption (in the latter case, it is actually the *encrypted* IV which was prefixed to the ciphertext). If not provided, a random byte string is generated (you must then read its value with the :attr:`iv` attribute). * **nonce** (*bytes*, *bytearray*, *memoryview*) -- (Only applicable for ``MODE_EAX`` and ``MODE_CTR``). A value that must never be reused for any other encryption done with this key. For ``MODE_EAX`` there are no restrictions on its length (recommended: **16** bytes). For ``MODE_CTR``, its length must be in the range **[0..7]**. If not provided for ``MODE_EAX``, a random byte string is generated (you can read it back via the ``nonce`` attribute). * **segment_size** (*integer*) -- (Only ``MODE_CFB``).The number of **bits** the plaintext and ciphertext are segmented in. It must be a multiple of 8. If not specified, it will be assumed to be 8. * **mac_len** : (*integer*) -- (Only ``MODE_EAX``) Length of the authentication tag, in bytes. It must be no longer than 8 (default). * **initial_value** : (*integer*) -- (Only ``MODE_CTR``). The initial value for the counter within the counter block. By default it is **0**. :Return: a Triple DES object, of the applicable mode. )r �sys�modules�__name__)r& �mode�args�kwargss r �newr< r s. � �x �#�+�h�/��d� L�T� L� L� L�V� L� L�Lr r � � � � � � r )r � )�__doc__r6 � Crypto.Cipherr �Crypto.Util.py3compatr r r r �Crypto.Util._raw_apir r r r r* r$ r4 r< �MODE_ECB�MODE_CBC�MODE_CFB�MODE_OFB�MODE_CTR� MODE_OPENPGP�MODE_EAX� block_sizer r r r �<module>rP s ��, � � � � � � (� (� (� (� (� (� ?� ?� ?� ?� ?� ?� ?� ?� ?� ?� ?� ?�,� ,� ,� ,� ,� ,� ,� ,� ,� ,� ,� ,� *�)�-� �� � �$� � �<6� 6� 6�0<M� <M� <M�| �� �� �� �� ��� � �� � � ���r