File manager - Edit - /usr/local/CyberCP/lib/python3.10/site-packages/cryptography/hazmat/primitives/ciphers/__pycache__/modes.cpython-310.pyc
Back
o �h � @ sf d dl mZ d dlZd dlmZ d dlmZmZ d dlm Z m Z d dl m Z G dd� dej d �ZG d d � d eej d �ZG d d � d eej d �ZG dd� deej d �ZG dd� deej d �Zd4dd�Zd5dd�Zd6d d!�Zd7d"d#�ZG d$d%� d%e�ZG d&d'� d'e�ZG d(d)� d)e�ZG d*d+� d+e�ZG d,d-� d-e�ZG d.d/� d/e�Z G d0d1� d1e�Z G d2d3� d3ee�Z dS )8� )� annotationsN)�utils)�UnsupportedAlgorithm�_Reasons)�BlockCipherAlgorithm�CipherAlgorithm)� algorithmsc @ s0 e Zd Zeejd dd���Zejd dd ��Zd S ) �Mode�return�strc C � dS )z@ A string naming this mode (e.g. "ECB", "CBC"). N� ��selfr r �_/usr/local/CyberCP/lib/python3.10/site-packages/cryptography/hazmat/primitives/ciphers/modes.py�name � z Mode.name� algorithmr �Nonec C r )zq Checks that all the necessary invariants of this (mode, algorithm) combination are met. Nr �r r r r r �validate_for_algorithm r zMode.validate_for_algorithmN)r r �r r r r )�__name__� __module__� __qualname__�property�abc�abstractmethodr r r r r r r s r )� metaclassc @ � e Zd Zeejddd���ZdS )� ModeWithInitializationVectorr �bytesc C r )zP The value of the initialization vector for this mode as bytes. Nr r r r r �initialization_vector# r z2ModeWithInitializationVector.initialization_vectorN�r r! )r r r r r r r" r r r r r " � r c @ r )� ModeWithTweakr r! c C r )z@ The value of the tweak for this mode as bytes. Nr r r r r �tweak, r zModeWithTweak.tweakNr# )r r r r r r r& r r r r r% + r$ r% c @ r )� ModeWithNoncer r! c C r )z@ The value of the nonce for this mode as bytes. Nr r r r r �nonce5 r zModeWithNonce.nonceNr# )r r r r r r r( r r r r r' 4 r$ r' c @ r )�ModeWithAuthenticationTagr � bytes | Nonec C r )zP The value of the tag supplied to the constructor of this mode. Nr r r r r �tag> r z ModeWithAuthenticationTag.tagN�r r* )r r r r r r r+ r r r r r) = r$ r) r r r r r c C s$ |j dkr|jdkrtd��d S d S )N� �AESz=Only 128, 192, and 256 bit keys are allowed for this AES mode)�key_sizer � ValueErrorr r r r �_check_aes_key_lengthF s ��r1 r c C s4 t | j�}|d |jkrtd|� d| j� d���d S )N� zInvalid IV size (�) for �.)�lenr" � block_sizer0 r )r r �iv_lenr r r �_check_iv_lengthM s �r8 r( r! r r c C sL t |t�st|� d�tj��t| �d |jkr$tdt| �� d|� d���d S )N�" requires a block cipher algorithmr2 zInvalid nonce size (r3 r4 )� isinstancer r r �UNSUPPORTED_CIPHERr5 r6 r0 )r( r r r r r �_check_nonce_lengthU s ��r< c C s4 t |t�st| � d�tj��t| |� t| |� d S )Nr9 )r: r r r r; r1 r8 r r r r �_check_iv_and_key_lengtha s � r= c @ �, e Zd Zd Zd dd�Zed dd��ZeZdS ) �CBCr" r! c C � t �d|� || _d S �Nr" �r �_check_byteslike�_initialization_vector�r r" r r r �__init__p � z CBC.__init__r c C � | j S �N�rD r r r r r" t � zCBC.initialization_vectorN�r" r! r# � r r r r rF r r" r= r r r r r r? m � r? c @ �2 e Zd Zd Zddd�Zeddd��Zdd d �Zd S )�XTSr& r! c C s* t �d|� t|�dkrtd��|| _d S )Nr& � z!tweak must be 128-bits (16 bytes))r rC r5 r0 �_tweak)r r& r r r rF ~ s z XTS.__init__r c C rH rI )rR r r r r r& � rK z XTS.tweakr r r c C s0 t |tjtjf�r td��|jdvrtd��d S )Nz\The AES128 and AES256 classes do not support XTS, please use the standard AES class instead.)r- i z\The XTS specification requires a 256-bit key for AES-128-XTS and 512-bit key for AES-256-XTS)r: r �AES128�AES256� TypeErrorr/ r0 r r r r r � s � ��zXTS.validate_for_algorithmN)r& r! r# r )r r r r rF r r& r r r r r rP { s rP c @ s e Zd Zd ZeZdS )�ECBN)r r r r r1 r r r r r rV � s rV c @ r> ) �OFBr" r! c C r@ rA rB rE r r r rF � rG z OFB.__init__r c C rH rI rJ r r r r r" � rK zOFB.initialization_vectorNrL r# rM r r r r rW � rN rW c @ r> ) �CFBr" r! c C r@ rA rB rE r r r rF � rG z CFB.__init__r c C rH rI rJ r r r r r" � rK zCFB.initialization_vectorNrL r# rM r r r r rX � rN rX c @ r> ) �CFB8r" r! c C r@ rA rB rE r r r rF � rG z CFB8.__init__r c C rH rI rJ r r r r r" � rK zCFB8.initialization_vectorNrL r# rM r r r r rY � rN rY c @ rO )�CTRr( r! c C r@ )Nr( )r rC �_nonce)r r( r r r rF � rG z CTR.__init__r c C rH rI )r[ r r r r r( � rK z CTR.noncer r r c C s t | |� t| j| j|� d S rI )r1 r< r( r r r r r r � s zCTR.validate_for_algorithmN)r( r! r# r )r r r r rF r r( r r r r r rZ � s rZ c @ sN e Zd Zd ZdZdZ ddd d �Zeddd��Zeddd��Z ddd�Z dS ) �GCMl ��? l NrQ r" r! r+ r* �min_tag_length�intc C s� t �d|� t|�dk st|�dkrtd��|| _|d ur9t �d|� |dk r+td��t|�|k r9td|� d ���|| _|| _d S ) Nr" r2 � zIinitialization_vector must be between 8 and 128 bytes (64 and 1024 bits).r+ � zmin_tag_length must be >= 4zAuthentication tag must be z bytes or longer.)r rC r5 r0 rD � _check_bytes�_tag�_min_tag_length)r r" r+ r] r r r rF � s � � z GCM.__init__r c C rH rI )rb r r r r r+ � rK zGCM.tagc C rH rI rJ r r r r r" � rK zGCM.initialization_vectorr r r c C sZ t | |� t|t�stdtj��|jd }| jd ur)t| j�|kr+t d|� d���d S d S )Nz%GCM requires a block cipher algorithmr2 z'Authentication tag cannot be more than z bytes.) r1 r: r r r r; r6 rb r5 r0 )r r �block_size_bytesr r r r s � ��zGCM.validate_for_algorithm)NrQ )r" r! r+ r* r] r^ r, r# r ) r r r r �_MAX_ENCRYPTED_BYTES�_MAX_AAD_BYTESrF r r+ r" r r r r r r\ � s � r\ )r r r r r r )r r r r r r )r( r! r r r r r r )r r r r r r ) � __future__r r � cryptographyr �cryptography.exceptionsr r �/cryptography.hazmat.primitives._cipheralgorithmr r �&cryptography.hazmat.primitives.ciphersr �ABCMetar r r% r' r) r1 r8 r< r= r? rP rV rW rX rY rZ r\ r r r r �<module> s.
| ver. 1.4 |
Github
|
.
| PHP 8.2.28 | Generation time: 0.03 |
proxy
|
phpinfo
|
Settings