B

Bd\R$�@s�dZd
Z
dddgZddlTddlmZ
yddlZejZWn$e	k
r\


dd	l
mZ
eZYnXGd
d�de�Zddd�
Z
ejZejZdS)
a�
SHA-256 cryptographic hash algorithm.

SHA-256 belongs to the SHA-2_ family of cryptographic hashes.
It produces the 256 bit digest of a message.

    >>> from Crypto.Hash import SHA256
    >>>
    >>> h = SHA256.new()
    >>> h.update(b'Hello')
    >>> print h.hexdigest()

*SHA* stands for Secure Hash Algorithm.

.. _SHA-2: http://csrc.nist.gov/publications/fips/fips180-2/fips180-2.pdf
z$Id$�new�digest_size�
SHA256Hash�)
�
*)
�HashAlgoN)
�_SHA256c@s4eZ
dZd
Zed�
ZdZdZd
dd�
Zddd	�
Z	dS)rzLClass that implements a SHA-256 hash
    
    :undocumented: block_size
    u	`†H
e
� �@NcCst�
|t|
�
dS)
N)r�__init__�hashFactory)�self�data�r�E/opt/alt/python37/lib64/python3.7/site-packages/Crypto/Hash/SHA256.pyr
Gs
zSHA256Hash.__init__cCst|
�
S)
N)
r)rr
rrrr
Js
zSHA256Hash.new)
N)
N)
�__name__�
__module__�__qualname__�__doc__�
bZoidr�
block_sizer
r
rrrrr4s


c

Cst��
|�
S)
a
Return a fresh instance of the hash object.

    :Parameters:
       data : byte string
        The very first chunk of the message to hash.
        It is equivalent to an early call to `SHA256Hash.update()`.
        Optional.

    :Return: A `SHA256Hash` object
    )rr
)
r
rrrr
Ms)
N)rZ_revision__�__all__ZCrypto.Util.py3compatZCrypto.Hash.hashalgorZhashlibZsha256r�ImportErrorZCrypto.Hashrrr
rrrrrr�<module>#s