%PDF-
%PDF-
Mini Shell
Mini Shell
�
�3Tf� � �n � d dl mZ d dlZd dlmZ d dlmZmZ d dlm Z m
Z
d dl m Z d
d�Z
G d� d e � Zy) � )� annotationsN)�utils)�AlreadyFinalized�
InvalidKey)�
constant_time�hashes)�KeyDerivationFunctionc �( � | j dd�� S )N� �big)�length� byteorder)�to_bytes)�ns �L/usr/lib/python3/dist-packages/cryptography/hazmat/primitives/kdf/x963kdf.py�
_int_to_u32ber s � � �:�:�Q�%�:� 0�0� c �6 � e Zd Z d dd�Zdd�Zdd�Zy) �X963KDFNc � � |j dz }||kD rt d|� d�� �|�t j d|� || _ || _ || _ d| _ y )Nl �� z Cannot derive keys larger than z bits.�
sharedinfoF)� digest_size�
ValueErrorr � _check_bytes�
_algorithm�_length� _sharedinfo�_used)�self� algorithmr
r �backend�max_lens r �__init__zX963KDF.__init__ sd � � �'�'�9�5�� �G� � � >�w�i�v� N�O� O� � !� � � �|�Z� 8�#��� �� �%�����
r c �4 � | j rt �d| _ t j d|� dg}d}d}| j |kD r�t j | j � }|j |� |j t |� � | j �|j | j � |j |j � � |t |d � z
}|dz
}| j |kD r��dj |� d | j S )NT� key_materialr r � ���)r r r �_check_bytesliker r �Hashr �updater r �append�finalize�len�join)r r% �output�outlen�counter�hs r �derivezX963KDF.derive& s� � � �:�:�"� "���
�
� � �~�|�<���������l�l�V�#�� � �D�O�O�,�A�
�H�H�\� "�
�H�H�]�7�+� ,�� � �+�����)�)�*� �M�M�!�*�*�,� '� �c�&��*�o� %�F� �q�L�G� �l�l�V�#� �x�x�� ��$�,�,�/�/r c �Z � t j | j |� |� st �y �N)r �bytes_eqr3 r )r r% � expected_keys r �verifyzX963KDF.verify; s' � � �%�%�d�k�k�,�&?� �N� � � Or r5 )r zhashes.HashAlgorithmr
�intr ztyping.Optional[bytes]r! z
typing.Any)r% �bytes�returnr: )r% r: r7 r: r; �None)�__name__�
__module__� __qualname__r# r3 r8 � r r r r s< � � #� �'�� �� +� �
� �$0�* r r )r r9 r; r: )�
__future__r �typing� cryptographyr �cryptography.exceptionsr r � cryptography.hazmat.primitivesr r �"cryptography.hazmat.primitives.kdfr r r r@ r r �<module>rG s+ ��
#�
� � @� @� D�1�* �#� * r
Zerion Mini Shell 1.0