o
    ™¨ÊhÕ  ã                   @   sÖ   d dl mZmZmZ 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 e ej¡G dd„ deƒƒZe e¡G dd	„ d	eƒƒZe e¡G d
d„ deƒƒZe e¡G dd„ deƒƒZG dd„ deƒZdd„ ZdS )é    )Úabsolute_importÚdivisionÚprint_functionN)Úutils)Úhashes)Úrsac                   @   s   e Zd Zejdd„ ƒZdS )ÚAsymmetricPaddingc                 C   s   dS )zE
        A string naming this padding (e.g. "PSS", "PKCS1").
        N© )Úselfr	   r	   úc/var/www/html/env/lib/python3.10/site-packages/cryptography/hazmat/primitives/asymmetric/padding.pyÚname   s    zAsymmetricPadding.nameN)Ú__name__Ú
__module__Ú__qualname__ÚabcÚabstractpropertyr   r	   r	   r	   r   r      s    r   c                   @   s   e Zd ZdZdS )ÚPKCS1v15zEMSA-PKCS1-v1_5N)r   r   r   r   r	   r	   r	   r   r      s    r   c                   @   s   e Zd Zeƒ ZdZdd„ ZdS )ÚPSSzEMSA-PSSc                 C   sH   || _ t|tjƒs|| jurtdƒ‚|| jur|dk rtdƒ‚|| _d S )Nzsalt_length must be an integer.r   z$salt_length must be zero or greater.)Ú_mgfÚ
isinstanceÚsixÚinteger_typesÚ
MAX_LENGTHÚ	TypeErrorÚ
ValueErrorÚ_salt_length)r
   ÚmgfÚsalt_lengthr	   r	   r   Ú__init__$   s   

zPSS.__init__N)r   r   r   Úobjectr   r   r   r	   r	   r	   r   r      s    r   c                   @   s   e Zd ZdZdd„ ZdS )ÚOAEPzEME-OAEPc                 C   s*   t |tjƒs
tdƒ‚|| _|| _|| _d S ©Nz*Expected instance of hashes.HashAlgorithm.)r   r   ÚHashAlgorithmr   r   Ú
_algorithmÚ_label)r
   r   Ú	algorithmÚlabelr	   r	   r   r   5   s
   
zOAEP.__init__N)r   r   r   r   r   r	   r	   r	   r   r    1   s    r    c                   @   s   e Zd Zeƒ Zdd„ ZdS )ÚMGF1c                 C   s   t |tjƒs
tdƒ‚|| _d S r!   )r   r   r"   r   r#   )r
   r%   r	   r	   r   r   A   s   
zMGF1.__init__N)r   r   r   r   r   r   r	   r	   r	   r   r'   >   s    r'   c                 C   sP   t | tjtjfƒstdƒ‚tt | jd d ¡ƒ}||j	 d }|dks&J ‚|S )Nz(key must be an RSA public or private keyé   g       @é   r   )
r   r   ÚRSAPrivateKeyÚRSAPublicKeyr   ÚintÚmathÚceilÚkey_sizeÚdigest_size)ÚkeyÚhash_algorithmÚemlenr   r	   r	   r   Úcalculate_max_pss_salt_lengthH   s   r4   )Ú
__future__r   r   r   r   r-   r   Úcryptographyr   Úcryptography.hazmat.primitivesr   Ú)cryptography.hazmat.primitives.asymmetricr   Úadd_metaclassÚABCMetar   r   Úregister_interfacer   r   r    r'   r4   r	   r	   r	   r   Ú<module>   s"   

