
    nh0                     t    d dl Z d dlZd dlZd dlmZ d dlmZ d dlmZ d dl	m
Z
mZmZmZ d Z G d de      Zy)	    N)Key)
ALGORITHMS)JWKError)base64url_decodebase64url_encodeis_pem_format
is_ssh_keyc                 >    t        t        j                  |             S N)bytesosurandom)	num_bytess    f/var/www/pru.catia.catastroantioquia-mas.com/tasa/lib/python3.12/site-packages/jose/backends/native.pyget_random_bytesr      s    I&''    c                       e Zd ZdZej
                  ej                  ej                  ej                  ej                  ej                  iZd Zd Zd Zd Zd Zy)HMACKeyzf
    Performs signing and verification operations using HMAC
    and the specified hash function.
    c                    |t         j                  vrt        d|z        || _        | j                  j                  |      | _        t        |t              r| j                  |      | _
        y t        |t              st        |t              st        d      t        |t              r|j                  d      }t        |      st        |      rt        d      || _
        y )Nz*hash_alg: %s is not a valid hash algorithmz+Expecting a string- or bytes-formatted key.utf-8zdThe specified key is an asymmetric key or x509 certificate and should not be used as an HMAC secret.)r   HMACr   
_algorithmHASHESget	_hash_alg
isinstancedict_process_jwkprepared_keystrr   encoder   r	   )selfkey	algorithms      r   __init__zHMACKey.__init__   s    JOO+G)STT#3c4  $ 1 1# 6D#s#JsE,BHIIc3**W%CC9 
  r   c                     |j                  d      dk(  st        d|j                  d      z        |j                  d      }|j                  d      }t        |      }t	        |      }|S )Nktyoctz1Incorrect key type. Expected: 'oct', Received: %skr   )r   r   r!   r   r   )r"   jwk_dictr)   s      r   r   zHMACKey._process_jwk/   se    ||E"e+NQYQ]Q]^cQddeeLLHHW!HQr   c                 t    t        j                  | j                  || j                        j	                         S r   )hmacnewr   r   digest)r"   msgs     r   signzHMACKey.sign:   s(    xx))3?FFHHr   c                 L    t        j                  || j                  |            S r   )r,   compare_digestr0   )r"   r/   sigs      r   verifyzHMACKey.verify=   s    ""3		#77r   c                 f    | j                   dt        | j                        j                  d      dS )Nr(   ASCII)algr'   r)   )r   r   r   decode)r"   s    r   to_dictzHMACKey.to_dict@   s/    ??!$"3"34;;GD
 	
r   N)__name__
__module____qualname____doc__r   HS256hashlibsha256HS384sha384HS512sha512r   r%   r   r0   r4   r9    r   r   r   r      sW    
 
0@0@'..R\RbRbdkdrdrsF 0	I8
r   r   )r?   r,   r   jose.backends.baser   jose.constantsr   jose.exceptionsr   
jose.utilsr   r   r   r	   r   r   rE   r   r   <module>rJ      s.      	 " % $ T T(6
c 6
r   