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Editing: Padding.cpython-311.pyc
� 8�tc� � �& � d dgZ ddlT dd�Zdd�ZdS ) �pad�unpad� )�*�pkcs7c �6 � |t | � � |z z }|dk rt |� � |z }ng|dk r&t d� � |dz z t |� � z }n;|dk r&t d� � t d� � |dz z z }nt d� � �| |z S )a� Apply standard padding. Args: data_to_pad (byte string): The data that needs to be padded. block_size (integer): The block boundary to use for padding. The output length is guaranteed to be a multiple of :data:`block_size`. style (string): Padding algorithm. It can be *'pkcs7'* (default), *'iso7816'* or *'x923'*. Return: byte string : the original data with the appropriate padding added at the end. r �x923r � �iso7816� �Unknown padding style)�len�bchr� ValueError)� data_to_pad� block_size�style� padding_len�paddings �9/usr/lib/python3/dist-packages/Cryptodome/Util/Padding.pyr r ' s� � � �S�� -� -�j� 8�8�K� �����{�#�#�K�/��� �&� � ��q�'�'�;�q�=�)�D��,=�,=�=��� �)� � ��s�)�)�d�1�g�g�{�1�}� 5�5����0�1�1�1� �� � � c � � t | � � }|dk rt d� � �||z rt d� � �|dv r�t | d � � }|dk s|t ||� � k rt d� � �|dk r/| | d � t |� � |z k rt d � � �n�| | d� t d� � |dz z k rt d � � �n�|d k r�|| � t d � � � � z }|dk s|t ||� � k rt d� � �|dk r3| d|z d � t d� � |dz z k rt d� � �nt d� � �| d | � S )a� Remove standard padding. Args: padded_data (byte string): A piece of data with padding that needs to be stripped. block_size (integer): The block boundary to use for padding. The input length must be a multiple of :data:`block_size`. style (string): Padding algorithm. It can be *'pkcs7'* (default), *'iso7816'* or *'x923'*. Return: byte string : data without padding. Raises: ValueError: if the padding is incorrect. r z$Zero-length input cannot be unpaddedzInput data is not padded)r r ���r zPadding is incorrect.r Nz PKCS#7 padding is incorrect.z ANSI X.923 padding is incorrect.r r z ISO 7816-4 padding is incorrect.r )r r �bord�minr �rfind)� padded_datar r � pdata_lenr s r r r C s� � �" �K� � �I��A�~�~��?�@�@�@��:� � 5��3�4�4�4� �!�!�!��;�r�?�+�+� � �q�=�=�K��J� �(B�(B� B� B� � 4�5�5� 5� �G� � ��K�<�=�=�)�4� �+<�+<�[�+H�H�H� �!?�@�@�@� I� �K�<��?�+�T�!�W�W�k�!�m�-D�D�D� �!C�D�D�D� E� �)� � � �+�"3�"3�D��I�I�">�">�>� � �q�=�=�K��J� �(B�(B� B� B� � 4�5�5� 5� �q�=�=�[��;� � � � 8�$�q�'�'�;�q�=�:Q� Q� Q� � ?�@�@� @���0�1�1�1� �}�� �}� %�%r N)r )�__all__�Cryptodome.Util.py3compatr r � r r �<module>r! sP ��D �7� �� '� '� '� '�!� !� !� !�8(&� (&� (&� (&� (&� (&r
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