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3 ��d� � @ s� d Z ddlZddlmZ ddlZddlZddl Z e dd� ed�D ��Ze dd� ed�D ��Z dZG dd � d �Zd d� ZG dd � d e j�Zej� r�eZddd�ZdS )zxHMAC (Keyed-Hashing for Message Authentication) Python module. Implements the HMAC algorithm as described by RFC 2104. � N)�_compare_digestc c s | ]}|d A V qdS )�\ N� )�.0�xr r �/usr/lib64/python3.6/hmac.py� <genexpr> s r � c c s | ]}|d A V qdS )�6 Nr )r r r r r r s c @ sR e Zd ZdZdZddd�Zedd� �Zdd � Zd d� Z dd � Z dd� Zdd� ZdS )�HMACz~RFC 2104 HMAC class. Also complies with RFC 4231. This supports the API for Cryptographic Hash Functions (PEP 247). �@ Nc sf t j� rtd��t|ttf�s0tdt|�j ��� dkrLt j dtd� tj � t� �r\� | _n,t� t�rxd� fdd � | _nd� fd d � | _| j� | _| j� | _| jj| _t| jd�r�| jj}|dk r�t j d || jf td� | j}nt j d| j td� | j}|| _t|�|k�r| j|�j� }|j|d�}| jj|jt�� | jj|jt�� |dk �rb| j|� dS )a1 Create a new HMAC object. key: key for the keyed hash object. msg: Initial input for the hash, if provided. digestmod: A module supporting PEP 247. *OR* A hashlib constructor returning a new hash object. *OR* A hash name suitable for hashlib.new(). Defaults to hashlib.md5. Implicit default to hashlib.md5 is deprecated and will be removed in Python 3.6. Note: key and msg must be a bytes or bytearray objects. z*This class is not available in FIPS mode. zUse hmac.new().z,key: expected bytes or bytearray, but got %rNz<HMAC() without an explicit digestmod argument is deprecated.� � c s t j� | �S )N)�_hashlib�new)�d)� digestmodr r �<lambda>; s zHMAC.__init__.<locals>.<lambda>c s � j | �S )N)r )r )r r r r = s � block_size� z:block_size of %d seems too small; using our default of %d.z<No block_size attribute on given digest object; Assuming %d.� z9This class is not available in FIPS mode. Use hmac.new().)r )r )�_hashlibopenssl� get_fips_mode� ValueError� isinstance�bytes� bytearray� TypeError�type�__name__� _warnings�warn�PendingDeprecationWarningr Zmd5�callable�digest_cons�str�outer�inner�digest_size�hasattrr � blocksize�RuntimeWarning�len�digest�ljust�update� translate�trans_5C�trans_36)�self�key�msgr r* r )r r �__init__ sJ z HMAC.__init__c C s d| j j S )Nzhmac-)r'