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hashlib.cpython-37.pyc
B �/��o,� @ sh d Z dZee�Zee�Zed Zi Zdd� Zdd� Zddd �Z dd d �Z y d d l Z e Z eZ e�e j�ZW n ek r� e Z eZ Y nX yd dl mZ W nJ ek r� edd� ed�D ��Zedd� ed�D ��Zddd�ZY nX yd dl mZ W n ek �r Y nX xLeD ]DZye e�e� e< W n* ek �rP d d lZe�de� Y nX �qW [[[ [ [ [d S )a3 hashlib module - A common interface to many hash functions. new(name, data=b'', **kwargs) - returns a new hash object implementing the given hash function; initializing the hash using the given binary data. Named constructor functions are also available, these are faster than using new(name): md5(), sha1(), sha224(), sha256(), sha384(), sha512(), blake2b(), blake2s(), sha3_224, sha3_256, sha3_384, sha3_512, shake_128, and shake_256. More algorithms may be available on your platform but the above are guaranteed to exist. See the algorithms_guaranteed and algorithms_available attributes to find out what algorithm names can be passed to new(). NOTE: If you want the adler32 or crc32 hash functions they are available in the zlib module. Choose your hash function wisely. Some have known collision weaknesses. sha384 and sha512 will be slow on 32 bit platforms. Hash objects have these methods: - update(data): Update the hash object with the bytes in data. Repeated calls are equivalent to a single call with the concatenation of all the arguments. - digest(): Return the digest of the bytes passed to the update() method so far as a bytes object. - hexdigest(): Like digest() except the digest is returned as a string of double length, containing only hexadecimal digits. - copy(): Return a copy (clone) of the hash object. This can be used to efficiently compute the digests of datas that share a common initial substring. For example, to obtain the digest of the byte string 'Nobody inspects the spammish repetition': >>> import hashlib >>> m = hashlib.md5() >>> m.update(b"Nobody inspects") >>> m.update(b" the spammish repetition") >>> m.digest() b'\xbbd\x9c\x83\xdd\x1e\xa5\xc9\xd9\xde\xc9\xa1\x8d\xf0\xff\xe9' More condensed: >>> hashlib.sha224(b"Nobody inspects the spammish repetition").hexdigest() 'a4337bc45a8fc544c03f52dc550cd6e1e87021bc896588bd79e901e2' )�md5�sha1�sha224�sha256�sha384�sha512�blake2b�blake2s�sha3_224�sha3_256�sha3_384�sha3_512� shake_128� shake_256)�new�algorithms_guaranteed�algorithms_available� pbkdf2_hmacc C s� t }|�| �}|d k r|S �y.| dkrDdd l}|j |d< |d< �n| dkrhdd l}|j |d< |d< n�| dkr�dd l}|j |d < |d < |j |d < |d < n�| d kr�dd l }|j |d< |d< |j |d< |d< nt| dkr�dd l }|j |d< |j|d< nN| dk�rHdd l}|j|d< |j|d< |j|d< |j|d< |j|d< |j|d< W n tk �r` Y nX |�| �}|d k �rz|S td | ��d S ) N)�SHA1r � r r )�MD5r r r )�SHA256r �SHA224r r r r r )�SHA512r �SHA384r r r r r )r r r r > r r r r r r r r r r r r zunsupported hash type )�__builtin_constructor_cache�get�_sha1r �_md5r �_sha256r r �_sha512r r �_blake2r r �_sha3r r r r r r � ImportError� ValueError) �name�cache� constructorr r r r r r! � r' �,/opt/alt/python37/lib64/python3.7/hashlib.py�__get_builtin_constructorI sJ r) c C sJ | dkrt | �S yttd| �}|� |S ttfk rD t | �S X d S )N> r r Zopenssl_)r) �getattr�_hashlib�AttributeErrorr# )r$ �fr' r' r( �__get_openssl_constructort s r. � c K s t | �|f|�S )z�new(name, data=b'', **kwargs) - Return a new hashing object using the named algorithm; optionally initialized with data (which must be a bytes-like object). )r) )r$ �data�kwargsr' r' r( �__py_new� s r2 c K sF | dkrt | �|f|�S y t�| |�S tk r@ t | �|�S X dS )z�new(name, data=b'') - Return a new hashing object using the named algorithm; optionally initialized with data (which must be a bytes-like object). > r r N)r) r+ r r# )r$ r0 r1 r' r' r( � __hash_new� s r3 r N)r c c s | ]}|d A V qdS )�\ Nr' )�.0�xr' r' r( � <genexpr>� s r7 � c c s | ]}|d A V qdS )�6 Nr' )r5 r6 r' r' r( r7 � s c C s� t | t�st| ��t |ttf�s,tt|��}t |ttf�sFtt|��}t| �}t| �}t|dd�}t|�|kr|t| |�� � }|d|t|� }|� |� t �� |� |� t �� ||fdd�}|dk r�t|��|dkr�|j}|dk r�t|��d} d} tj} xzt| �|k �rt||| �d d � �} t�| d �} x,t|d �D ] }|| �} | | | d �N } �q8W | d7 } | | �|jd �7 } q�W | d|� S ) z�Password based key derivation function 2 (PKCS #5 v2.0) This Python implementations based on the hmac module about as fast as OpenSSL's PKCS5_PBKDF2_HMAC for short passwords and much faster for long passwords. Z block_size�@ � c S s0 |� � }|� � }|�| � |�|�� � |�� S )N)�copy�update�digest)�msg�inner�outerZicpyZocpyr' r' r( �prf� s zpbkdf2_hmac.<locals>.prf� Nr/ � Zbig)� isinstance�str� TypeError�bytes� bytearray� memoryviewr r* �lenr> r= � translate� _trans_36� _trans_5Cr# Z digest_size�int� from_bytes�to_bytes�range)Z hash_nameZpasswordZsaltZ iterationsZdklenr@ rA Z blocksizerB ZdkeyZlooprP �prevZrkey�ir' r' r( r � sB r )�scryptz code for hash %s was not found.)r/ )r/ )N) �__doc__Z__always_supported�setr r �__all__r r) r. r2 r3 r+ r Z __get_hash�unionZopenssl_md_meth_namesr" r rH rR rN rM rU Z __func_name�globalsr# ZloggingZ exceptionr' r' r' r( �<module>6 sH + 9
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