[EDIT] FILE: hmac.cpython-36.pyc
3 ꅭh1 � @ s� d dl mZmZmZ d dlmZ d dlmZmZm Z d dl m Z d dl m Z d dlmZmZ ejej�ejej�G dd� de���Zd S ) � )�absolute_import�division�print_function)�utils)�AlreadyFinalized�UnsupportedAlgorithm�_Reasons)� _get_backend)� HMACBackend)�hashes�macc @ s@ e Zd Zd dd�Zejd�Zdd� Zdd� Zd d � Z d d � Z dS )�HMACNc C sj t |�}t|t�s tdtj��t|tj�s2td��|| _ || _ || _ |d kr`| j j || j �| _n|| _d S )Nz.Backend object does not implement HMACBackend.z*Expected instance of hashes.HashAlgorithm.)r � isinstancer r r ZBACKEND_MISSING_INTERFACEr Z HashAlgorithm� TypeError� _algorithm�_backend�_keyZcreate_hmac_ctx� algorithm�_ctx)�self�keyr �backend�ctx� r � /usr/lib64/python3.6/hmac.py�__init__ s z HMAC.__init__r c C s. | j d krtd��tjd|� | j j|� d S )Nz Context was already finalized.�data)r r r Z_check_byteslike�update)r r r r r r * s z HMAC.updatec C s. | j d krtd��t| j| j| j| j j� d�S )Nz Context was already finalized.)r r )r r r r r r �copy)r r r r r 0 s z HMAC.copyc C s& | j d krtd��| j j� }d | _ |S )Nz Context was already finalized.)r r �finalize)r Zdigestr r r r : s z HMAC.finalizec C s: t jd|� | jd kr td��| jd }| _|j|� d S )N� signaturez Context was already finalized.)r � _check_bytesr r �verify)r r r r r r r" A s z HMAC.verify)NN) �__name__� __module__� __qualname__r r Zread_only_propertyr r r r r" r r r r r s r N)Z __future__r r r Z cryptographyr Zcryptography.exceptionsr r r Z cryptography.hazmat.backendsr Z'cryptography.hazmat.backends.interfacesr Z cryptography.hazmat.primitivesr r Zregister_interfaceZ MACContextZ HashContext�objectr r r r r �<module> s
SAVE
CANCEL