File manager - Edit - /usr/lib/python3/dist-packages/cryptography/hazmat/primitives/twofactor/__pycache__/hotp.cpython-310.pyc
Back
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
| ver. 1.4 |
Github
|
.
| PHP 8.2.28 | Generation time: 0.02 |
proxy
|
phpinfo
|
Settings