PHP WebShell
Текущая директория: /usr/lib/python3/dist-packages/cryptography/hazmat/primitives/twofactor/__pycache__
Просмотр файла: hotp.cpython-310.pyc
o
�)%a
� @ s� d dl Z d dlZd dlmZmZ d dlmZ d dlmZ d dl m
Z
m Z d dl m
Z
mZmZ d dlmZ d dlmZ eje
eef ZG d d
� d
e�ZdS ) � N)�UnsupportedAlgorithm�_Reasons)� _get_backend)� HMACBackend)�
constant_time�hmac)�SHA1�SHA256�SHA512)� InvalidToken)�
_generate_uric @ s� e Zd Z ddedededefdd�Zd ed
efd d �Zd
ed ed
dfdd�Z d ed
efdd�Z
de d ede j
e d
e fdd�ZdS )�HOTPNT�key�length� algorithm�enforce_key_lengthc C s� t |�}t|t�stdtj��t|�dk r |du r td��t|t�s&t d��|dk s.|dkr2td��t|t
t t f�s>t d ��|| _
|| _|| _|| _d S )
Nz.Backend object does not implement HMACBackend.� Tz'Key length has to be at least 128 bits.z)Length parameter must be an integer type.� � z(Length of HOTP has to be between 6 to 8.z)Algorithm must be SHA1, SHA256 or SHA512.)r �
isinstancer r r �BACKEND_MISSING_INTERFACE�len�
ValueError�int� TypeErrorr r r
�_key�_length�
_algorithm�_backend)�selfr r r �backendr � r! �O/usr/lib/python3/dist-packages/cryptography/hazmat/primitives/twofactor/hotp.py�__init__ s$
�
z
HOTP.__init__�counter�returnc C s* | � |�}|d| j }d�|| j��� S )N�
z{0:0{1}})�_dynamic_truncater �format�encode)r r$ �truncated_value�hotpr! r! r" �generate6 s
z
HOTP.generater+ c C s t �| �|�|�s
td��d S )Nz#Supplied HOTP value does not match.)r �bytes_eqr, r )r r+ r$ r! r! r" �verify; s �z HOTP.verifyc C sf t �| j| j| j�}|�t�d|�� |�� }|t |�d d@ }|||d � }t�
d|�d d@ S )Nz>Q� � � z>Ir i���) r �HMACr r r �update�struct�pack�finalizer �unpack)r r$ �ctx�
hmac_value�offset�pr! r! r" r' ? s zHOTP._dynamic_truncate� account_name�issuerc C s t | d||dt|�fg�S )Nr+ r$ )r r )r r< r$ r= r! r! r" �get_provisioning_uriH s �zHOTP.get_provisioning_uri)NT)�__name__�
__module__� __qualname__�bytesr �_ALLOWED_HASH_TYPES�boolr# r, r. r' �str�typing�Optionalr> r! r! r! r" r
s0 ����
� ����r
)r4 rF �cryptography.exceptionsr r � cryptography.hazmat.backendsr �'cryptography.hazmat.backends.interfacesr � cryptography.hazmat.primitivesr r �%cryptography.hazmat.primitives.hashesr r r
�(cryptography.hazmat.primitives.twofactorr �.cryptography.hazmat.primitives.twofactor.utilsr �UnionrC �objectr
r! r! r! r" �<module> s Выполнить команду
Для локальной разработки. Не используйте в интернете!