o
    h&                     @   s$  d dl Z d dlZd dlmZ d dlmZ d dlmZmZ d dl	m
Z
mZ d dlmZ d dlmZ G dd	 d	eZG d
d de
ZG dd deZG dd deZG dd deZG dd deZG dd deZG dd deZG dd deZG dd deZG dd deZG dd deZdS )     N)default_backend)hashes)paddingrsa)CryptographyPrivateKeyCryptographyPublicKey)	Algorithm)DNSKEYc                   @   sj   e Zd ZU ejed< ejZeed< ej	ed< de
de
ddfdd	Zde
fd
dZededd fddZdS )	PublicRSAkey	algorithmchosen_hash	signaturedatareturnNc                 C   s   | j ||t | j d S )N)r   verifyr   PKCS1v15r   )selfr   r    r   E/var/www/html/venv/lib/python3.10/site-packages/dns/dnssecalgs/rsa.pyr      s   zPublicRSA.verifyc                 C   s   | j  }tt|jd }tj|j|dd}|dkr&dt	d| }nt	d|}|j
 dk s:|j
 d	kr>td
|| |j
|j
 d d d S )z,Encode a public key per RFC 3110, section 2.   big)length	byteorder       !H!Bi   i   zunsupported RSA key length   )r   Zpublic_numbersmathceilint
bit_lengtheto_bytesstructpackn
ValueError)r   ZpnZ_exp_lenexpZ
exp_headerr   r   r   encode_key_bytes   s   
$zPublicRSA.encode_key_bytesc                 C   s   |  | |j}td|dd \}|dd  }|dkr.td|dd \}|dd  }|d| }||d  }| tt|dt|dt	 dS )Nr   r      r      r   r   )
Z!_ensure_algorithm_key_combinationr   r%   unpackr   ZRSAPublicNumbersr!   
from_bytes
public_keyr   )clsr   Zkeyptrbytes_Zrsa_eZrsa_nr   r   r   from_dnskey#   s   
zPublicRSA.from_dnskey)__name__
__module____qualname__r   ZRSAPublicKey__annotations__key_clsr   r   ZHashAlgorithmbytesr   r*   classmethodr	   r3   r   r   r   r   r
      s   
 

r
   c                	   @   s\   e Zd ZU ejed< ejZeZdZ			dde
dedede
fd	d
Zededd fddZdS )
PrivateRSAr   i  FTr   r   deterministicr   c                 C   s0   | j |t | jj}|r|  || |S )z1Sign using a private key per RFC 3110, section 3.)r   signr   r   
public_clsr   r0   r   )r   r   r   r<   r   r   r   r   r=   ;   s   zPrivateRSA.signkey_sizec                 C   s   | t j| j|t ddS )N)Zpublic_exponentr?   backendr-   )r   Zgenerate_private_keydefault_public_exponentr   )r1   r?   r   r   r   generateG   s   zPrivateRSA.generateN)FT)r4   r5   r6   r   ZRSAPrivateKeyr7   r8   r
   r>   rA   r9   boolr=   r:   r!   rB   r   r   r   r   r;   5   s$   
 

r;   c                   @      e Zd ZejZe ZdS )PublicRSAMD5N)	r4   r5   r6   r   ZRSAMD5r   r   MD5r   r   r   r   r   rE   R       rE   c                   @      e Zd ZeZdS )PrivateRSAMD5N)r4   r5   r6   rE   r>   r   r   r   r   rI   W       rI   c                   @   rD   )PublicRSASHA1N)	r4   r5   r6   r   ZRSASHA1r   r   SHA1r   r   r   r   r   rK   [   rG   rK   c                   @   rH   )PrivateRSASHA1N)r4   r5   r6   rK   r>   r   r   r   r   rM   `   rJ   rM   c                   @   rD   )PublicRSASHA1NSEC3SHA1N)	r4   r5   r6   r   ZRSASHA1NSEC3SHA1r   r   rL   r   r   r   r   r   rN   d   rG   rN   c                   @   rH   )PrivateRSASHA1NSEC3SHA1N)r4   r5   r6   rN   r>   r   r   r   r   rO   i   rJ   rO   c                   @   rD   )PublicRSASHA256N)	r4   r5   r6   r   Z	RSASHA256r   r   SHA256r   r   r   r   r   rP   m   rG   rP   c                   @   rH   )PrivateRSASHA256N)r4   r5   r6   rP   r>   r   r   r   r   rR   r   rJ   rR   c                   @   rD   )PublicRSASHA512N)	r4   r5   r6   r   Z	RSASHA512r   r   SHA512r   r   r   r   r   rS   v   rG   rS   c                   @   rH   )PrivateRSASHA512N)r4   r5   r6   rS   r>   r   r   r   r   rU   {   rJ   rU   )r   r%   Zcryptography.hazmat.backendsr   Zcryptography.hazmat.primitivesr   Z)cryptography.hazmat.primitives.asymmetricr   r   Zdns.dnssecalgs.cryptographyr   r   Zdns.dnssectypesr   Zdns.rdtypes.ANY.DNSKEYr	   r
   r;   rE   rI   rK   rM   rN   rO   rP   rR   rS   rU   r   r   r   r   <module>   s(    (