U
    [e                     @   s  d dl Z d dlZd dlmZ d dlmZmZmZ d dlm	Z	 d dl
mZ G dd de jdZG d	d
 d
e jdZG dd de jdZG dd deZG dd deZG dd deZG dd deZG dd deZG dd deZG dd deZG dd deZG dd deZG dd  d eZG d!d" d"eZG d#d$ d$eZG d%d& d&eeZG d'd( d(eeZG d)d* d*eZG d+d, d,eZG d-d. d.eZ dS )/    N)utils)AlreadyFinalizedUnsupportedAlgorithm_Reasons)_get_backend)HashBackendc                   @   sN   e Zd ZejedddZejedddZeje	j
e dddZdS )	HashAlgorithmreturnc                 C   s   dS )zH
        A string naming this algorithm (e.g. "sha256", "md5").
        N selfr   r   g/var/www/html/services/stratfitenv/lib/python3.8/site-packages/cryptography/hazmat/primitives/hashes.pyname   s    zHashAlgorithm.namec                 C   s   dS )z<
        The size of the resulting digest in bytes.
        Nr   r   r   r   r   digest_size   s    zHashAlgorithm.digest_sizec                 C   s   dS )z
        The internal block size of the hash function, or None if the hash
        function does not use blocks internally (e.g. SHA3).
        Nr   r   r   r   r   
block_size   s    zHashAlgorithm.block_sizeN)__name__
__module____qualname__abcabstractpropertystrr   intr   typingOptionalr   r   r   r   r   r      s   r   )	metaclassc                   @   s^   e Zd ZejedddZejeddddZ	ejeddd	Z
ejd dd
dZdS )HashContextr	   c                 C   s   dS )zD
        A HashAlgorithm that will be used by this context.
        Nr   r   r   r   r   	algorithm(   s    zHashContext.algorithmNdatar
   c                 C   s   dS )z@
        Processes the provided bytes through the hash.
        Nr   r   r   r   r   r   update.   s    zHashContext.updatec                 C   s   dS )zR
        Finalizes the hash context and returns the hash digest as bytes.
        Nr   r   r   r   r   finalize4   s    zHashContext.finalizec                 C   s   dS )zM
        Return a HashContext that is a copy of the current context.
        Nr   r   r   r   r   copy:   s    zHashContext.copy)r   r   r   r   r   r   r   abstractmethodbytesr!   r"   r#   r   r   r   r   r   '   s   r   c                   @   s   e Zd ZdZdS )ExtendableOutputFunctionz7
    An interface for extendable output functions.
    N)r   r   r   __doc__r   r   r   r   r&   A   s   r&   c                   @   sR   e Zd ZdedddZedZeddddZ	d d	d
dZ
ed	ddZdS )HashN)r   c                 C   s`   t |}t|tstdtjt|ts0td|| _|| _	|d krV| j	
| j| _n|| _d S )Nz.Backend object does not implement HashBackend.z*Expected instance of hashes.HashAlgorithm.)r   
isinstancer   r   r   ZBACKEND_MISSING_INTERFACEr   	TypeError
_algorithm_backendZcreate_hash_ctxr   _ctx)r   r   backendctxr   r   r   __init__H   s    

zHash.__init__r+   r   c                 C   s.   | j d krtdtd| | j | d S )NContext was already finalized.r   )r-   r   r   Z_check_bytesliker!   r    r   r   r   r!   ]   s    
zHash.updater	   c                 C   s*   | j d krtdt| j| j| j  dS )Nr1   )r.   r/   )r-   r   r(   r   r,   r#   r   r   r   r   r#   c   s    
  z	Hash.copyc                 C   s&   | j d krtd| j  }d | _ |S )Nr1   )r-   r   r"   )r   digestr   r   r   r"   j   s
    

zHash.finalize)NN)r   r   r   r   r0   r   read_only_propertyr   r%   r!   r#   r"   r   r   r   r   r(   G   s
   
r(   c                   @   s   e Zd ZdZdZdZdS )SHA1sha1   @   Nr   r   r   r   r   r   r   r   r   r   r4   r   s   r4   c                   @   s   e Zd ZdZdZdZdS )
SHA512_224z
sha512-224      Nr8   r   r   r   r   r9   x   s   r9   c                   @   s   e Zd ZdZdZdZdS )
SHA512_256z
sha512-256    r;   Nr8   r   r   r   r   r<   ~   s   r<   c                   @   s   e Zd ZdZdZdZdS )SHA224sha224r:   r7   Nr8   r   r   r   r   r>      s   r>   c                   @   s   e Zd ZdZdZdZdS )SHA256sha256r=   r7   Nr8   r   r   r   r   r@      s   r@   c                   @   s   e Zd ZdZdZdZdS )SHA384sha3840   r;   Nr8   r   r   r   r   rB      s   rB   c                   @   s   e Zd ZdZdZdZdS )SHA512sha512r7   r;   Nr8   r   r   r   r   rE      s   rE   c                   @   s   e Zd ZdZdZdZdS )SHA3_224zsha3-224r:   Nr8   r   r   r   r   rG      s   rG   c                   @   s   e Zd ZdZdZdZdS )SHA3_256zsha3-256r=   Nr8   r   r   r   r   rH      s   rH   c                   @   s   e Zd ZdZdZdZdS )SHA3_384zsha3-384rD   Nr8   r   r   r   r   rI      s   rI   c                   @   s   e Zd ZdZdZdZdS )SHA3_512zsha3-512r7   Nr8   r   r   r   r   rJ      s   rJ   c                   @   s,   e Zd ZdZdZedddZedZ	dS )SHAKE128Zshake128Nr   c                 C   s,   t |tstd|dk r"td|| _d S Nzdigest_size must be an integer   z&digest_size must be a positive integerr)   r   r*   
ValueError_digest_sizer   r   r   r   r   r0      s
    
zSHAKE128.__init__rQ   
r   r   r   r   r   r   r0   r   r3   r   r   r   r   r   rK      s   	rK   c                   @   s,   e Zd ZdZdZedddZedZ	dS )SHAKE256Zshake256NrL   c                 C   s,   t |tstd|dk r"td|| _d S rM   rO   rR   r   r   r   r0      s
    
zSHAKE256.__init__rQ   rS   r   r   r   r   rT      s   	rT   c                   @   s   e Zd ZdZdZdZdS )MD5md5   r7   Nr8   r   r   r   r   rU      s   rU   c                   @   s4   e Zd ZdZdZdZdZedddZe	
dZd	S )
BLAKE2bblake2br7   rN   r;   rL   c                 C   s   |dkrt d|| _d S )Nr7   zDigest size must be 64rP   rQ   rR   r   r   r   r0      s    zBLAKE2b.__init__rQ   N)r   r   r   r   _max_digest_size_min_digest_sizer   r   r0   r   r3   r   r   r   r   r   rX      s   rX   c                   @   s4   e Zd ZdZdZdZdZedddZe	
dZd	S )
BLAKE2sblake2sr7   r=   rN   rL   c                 C   s   |dkrt d|| _d S )Nr=   zDigest size must be 32rZ   rR   r   r   r   r0      s    zBLAKE2s.__init__rQ   N)r   r   r   r   r   r[   r\   r   r0   r   r3   r   r   r   r   r   r]      s   r]   )!r   r   Zcryptographyr   Zcryptography.exceptionsr   r   r   Zcryptography.hazmat.backendsr   Z'cryptography.hazmat.backends.interfacesr   ABCMetar   r   r&   r(   r4   r9   r<   r>   r@   rB   rE   rG   rH   rI   rJ   rK   rT   rU   rX   r]   r   r   r   r   <module>   s2   +