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3
ꅭhS                 @   s|   d dl mZmZmZ d dlmZ d dlmZmZm	Z	m
Z
mZ d dlmZ dd Zdd ZG d	d
 d
eZdd Zdd ZdS )    )absolute_importdivisionprint_function)utils)	DERReaderINTEGERSEQUENCE
encode_derencode_der_integer)hashesc          	   C   s>   t | jt&}|jtj }|jtj }||fS Q R X d S )N)r   Zread_single_elementr   Zread_elementr   Z
as_integer)	signatureseqrs r   /usr/lib64/python3.6/utils.pydecode_dss_signature   s    r   c             C   s    t tt tt| t tt|S )N)r	   r   r   r
   )r   r   r   r   r   encode_dss_signature   s    r   c               @   s   e Zd Zdd ZejdZdS )	Prehashedc             C   s&   t |tjstd|| _|j| _d S )Nz#Expected instance of HashAlgorithm.)
isinstancer   ZHashAlgorithm	TypeErrorZ
_algorithmdigest_size_digest_size)self	algorithmr   r   r   __init__"   s    zPrehashed.__init__r   N)__name__
__module____qualname__r   r   Zread_only_propertyr   r   r   r   r   r   !   s   r   c             C   s   t | S )N)r   )r   r   r   r   decode_rfc6979_signature,   s    r   c             C   s
   t | |S )N)r   )r   r   r   r   r   encode_rfc6979_signature0   s    r    N)Z
__future__r   r   r   Zcryptographyr   Zcryptography.hazmat._derr   r   r   r	   r
   Zcryptography.hazmat.primitivesr   r   r   objectr   r   r    r   r   r   r   <module>   s   