ó
    Ö›‘hÜ  ã                   óH   • S r SSKJr  SSKJrJr  \\\S.r S	S jrS rS r	g)
z^
Calculations for HTTP Digest authentication.

@see: U{http://www.faqs.org/rfcs/rfc2617.html}
é    )Úhexlify)Úmd5Úsha1)s   md5ó   md5-sesss   shaNc                 ó\  • U(       a   U(       d  U(       d  U(       a  [        S5      eUc}  [        U    " 5       nUR                  U5        UR                  S5        UR                  U5        UR                  S5        UR                  U5        [        UR	                  5       5      nOUnU S:X  a|  [        U    " 5       nUR                  U5        UR                  S5        UR                  U5        UR                  S5        UR                  U5        [        UR	                  5       5      nU$ )a
  
Compute H(A1) from RFC 2617.

@param pszAlg: The name of the algorithm to use to calculate the digest.
    Currently supported are md5, md5-sess, and sha.
@param pszUserName: The username
@param pszRealm: The realm
@param pszPassword: The password
@param pszNonce: The nonce
@param pszCNonce: The cnonce

@param preHA1: If available this is a str containing a previously
   calculated H(A1) as a hex string.  If this is given then the values for
   pszUserName, pszRealm, and pszPassword must be L{None} and are ignored.
zPpreHA1 is incompatible with the pszUserName, pszRealm, and pszPassword argumentsó   :r   )Ú	TypeErrorÚ
algorithmsÚupdater   Údigest)	ÚpszAlgÚpszUserNameÚpszRealmÚpszPasswordÚpszNonceÚ	pszCNonceÚpreHA1ÚmÚHA1s	            ÚXC:\Users\psant\Downloads\Noiseback\school\venv\Lib\site-packages\twisted/cred/_digest.pyÚcalcHA1r   !   sç   € ö& –;¦(®kÜð2ó
ð 	
ð
 �~ä�vÒÓ ˆØ	�‰�ÔØ	�‰�ŒØ	�‰�ÔØ	�‰�ŒØ	�‰�ÔÜ�a—h‘h“jÓ!‰ð ˆà�ÓÜ�vÒÓ ˆØ	�‰�ŒØ	�‰�ŒØ	�‰�ÔØ	�‰�ŒØ	�‰�ÔÜ�a—h‘h“jÓ!ˆà€Jó    c                 ó  • [         U    " 5       nUR                  U5        UR                  S5        UR                  U5        US:X  a"  UR                  S5        UR                  U5        [        UR                  5       5      $ )aÉ  
Compute H(A2) from RFC 2617.

@param algo: The name of the algorithm to use to calculate the digest.
    Currently supported are md5, md5-sess, and sha.
@param pszMethod: The request method.
@param pszDigestUri: The request URI.
@param pszQop: The Quality-of-Protection value.
@param pszHEntity: The hash of the entity body or L{None} if C{pszQop} is
    not C{'auth-int'}.
@return: The hash of the A2 value for the calculation of the response
    digest.
r   s   auth-int©r
   r   r   r   )ÚalgoÚ	pszMethodÚpszDigestUriÚpszQopÚ
pszHEntityr   s         r   ÚcalcHA2r    S   sd   € ô 	�4ÒÓ€AØ‡H�HˆYÔØ‡H�HˆT„NØ‡H�Hˆ\ÔØ�ÓØ	�‰�ŒØ	�‰�ÔÜ�1—8‘8“:ÓÐr   c                 óæ  • [         U   " 5       nUR                  U 5        UR                  S5        UR                  U5        UR                  S5        U(       am  U(       af  UR                  U5        UR                  S5        UR                  U5        UR                  S5        UR                  U5        UR                  S5        UR                  U5        [        UR                  5       5      nU$ )aa  
Compute the digest for the given parameters.

@param HA1: The H(A1) value, as computed by L{calcHA1}.
@param HA2: The H(A2) value, as computed by L{calcHA2}.
@param pszNonce: The challenge nonce.
@param pszNonceCount: The (client) nonce count value for this response.
@param pszCNonce: The client nonce.
@param pszQop: The Quality-of-Protection value.
r   r   )	r   ÚHA2r   r   ÚpszNonceCountr   r   r   ÚrespHashs	            r   ÚcalcResponser%   k   s¨   € ô 	�4ÒÓ€AØ‡H�HˆS„MØ‡H�HˆT„NØ‡H�HˆXÔØ‡H�HˆT„NÞžØ	�‰�ÔØ	�‰�ŒØ	�‰�ÔØ	�‰�ŒØ	�‰�ÔØ	�‰�ŒØ‡H�HˆS„MÜ�q—x‘x“zÓ"€HØ€Or   )N)
Ú__doc__Úbinasciir   Úhashlibr   r   r
   r   r    r%   © r   r   Ú<module>r*      s=   ðñ
õ ß ð
 ð Øñ€
ð" MQô/òdó0r   