File manager - Edit - /usr/local/CyberPanel/lib/python3.10/site-packages/cryptography/hazmat/primitives/kdf/__pycache__/kbkdf.cpython-310.pyc
Back
o �h�# � @ s� d dl mZ d dlZd dlmZ d dlmZmZmZm Z d dl m Z m Z m Z mZmZ d dlmZ G dd� dej�ZG d d � d ej�ZG d d � d �ZG d d� de�ZG dd� de�ZdS )� )� annotationsN)�utils)�AlreadyFinalized� InvalidKey�UnsupportedAlgorithm�_Reasons)�ciphers�cmac� constant_time�hashes�hmac)�KeyDerivationFunctionc @ s e Zd ZdZdS )�Mode�ctrN)�__name__� __module__� __qualname__� CounterMode� r r �^/usr/local/CyberPanel/lib/python3.10/site-packages/cryptography/hazmat/primitives/kdf/kbkdf.pyr s r c @ s e Zd ZdZdZdZdS )�CounterLocation� before_fixed� after_fixed� middle_fixedN)r r r � BeforeFixed� AfterFixed� MiddleFixedr r r r r s r c @ s8 e Zd Zd dd�Zed!dd��Zd"dd �Zd#d d �Zd S )$� _KBKDFDeriver�prf�typing.Callable�moder �length�int�rlen�llen� int | None�locationr �break_location�label� bytes | None�context�fixedc C s| t |�sJ �t|t�std��t|t�std��|d u r%|tju r%td��|d ur2|tjkr2td��|d ur?t|t�s?td��|d urK|dk rKtd��|sO| rU| rUtd��|d u s^| �|�sbtd ��|d u rn| d u rntd ��|d ur{t|t�s{td ��|dkr�td ��|d u r�d }| d u r�d } t � d|� t � d| � || _ || _ || _ || _|| _|| _|| _|| _| | _d| _| | _d S )Nzmode must be of type Modez(location must be of type CounterLocationz Please specify a break_locationzJbreak_location is ignored when location is not CounterLocation.MiddleFixedz!break_location must be an integerr z)break_location must be a positive integerz9When supplying fixed data, label and context are ignored.z rlen must be between 1 and 4zPlease specify an llenzllen must be an integerzllen must be non-zero� r( r* F)�callable� isinstancer � TypeErrorr r � ValueErrorr" �_valid_byte_lengthr � _check_bytes�_prf�_mode�_length�_rlen�_llen� _location�_break_location�_label�_context�_used� _fixed_data) �selfr r r! r# r$ r& r' r( r* r+ r r r �__init__% sZ � � z_KBKDFDeriver.__init__�value�return�boolc C sB t | t�s td��t�d| �}dt|� kr dks dS dS dS )Nzvalue must be of type int� � FT)r. r" r/ r � int_to_bytes�len)r@ � value_binr r r r1 q s �z _KBKDFDeriver._valid_byte_length� key_material�bytes�prf_output_sizec C s6 | j rt�t�d|� d| _ | j | }dg}t�d| j�}|tdt|�d �d kr0t d��| � � }| j t j kr?d}|}n*| j t jkrJ|}d}n t| jt�r[| jt|�kr[t d��|d | j� }|| jd � }td|d �D ] } | �|�} t�| | j�} || | } | �| � |�| �� � qpd�|�d | j� S ) NrH Tr, rC � � z There are too many iterations.z"break_location offset > len(fixed))r< r r �_check_bytesliker5 rE r6 �powrF r0 �_generate_fixed_inputr8 r r r r. r9 r" �ranger3 �update�append�finalize�join) r> rH rJ �rounds�output�r_binr+ �data_before_ctr�data_after_ctr�i�h�counter� input_datar r r �derive{ s< � z_KBKDFDeriver.derivec C sB | j r t| j t�r | j S t�| jd | j�}d�| jd| j |g�S )NrL r, � ) r= r. rI r rE r5 r7 rT r: r; )r> �l_valr r r rO � s z#_KBKDFDeriver._generate_fixed_inputN)r r r r r! r" r# r" r$ r% r& r r' r% r( r) r* r) r+ r) )r@ r" rA rB )rH rI rJ r" rA rI )rA rI )r r r r? � staticmethodr1 r^ rO r r r r r $ s L 0r c @ s> e Zd Z d#dd�d$dd�Zd%dd �Zd&d d �Zd'd!d"�ZdS )(� KBKDFHMACN�r' � algorithm�hashes.HashAlgorithmr r r! r" r# r$ r% r& r r( r) r* r+ �backend� typing.Anyr' c C sb t |tj�s tdtj��ddlm} | �|�s tdtj��|| _ t | j |||||| ||| � | _ d S )Nz5Algorithm supplied is not a supported hash algorithm.r �rf z5Algorithm supplied is not a supported hmac algorithm.) r. r � HashAlgorithmr r �UNSUPPORTED_HASH�,cryptography.hazmat.backends.openssl.backendrf �hmac_supported� _algorithmr r3 �_deriver) r> rd r r! r# r$ r& r( r* r+ rf r' �osslr r r r? � s0 � � �zKBKDFHMAC.__init__rH rI rA � hmac.HMACc C s t �|| j�S �N)r �HMACrm �r> rH r r r r3 � s zKBKDFHMAC._prfc C s | j �|| jj�S rq )rn r^ rm � digest_sizers r r r r^ � s zKBKDFHMAC.derive� expected_key�Nonec C � t �| �|�|�s t�d S rq �r �bytes_eqr^ r �r> rH ru r r r �verify� � �zKBKDFHMAC.verifyrq )rd re r r r! r" r# r" r$ r% r& r r( r) r* r) r+ r) rf rg r' r% )rH rI rA rp �rH rI rA rI �rH rI ru rI rA rv �r r r r? r3 r^ r{ r r r r rb � s � � . rb c @ s> e Zd Z d"dd�d#dd�Zd$dd�Zd%d d �Zd&d d!�ZdS )'� KBKDFCMACNrc r r r! r" r# r$ r% r& r r( r) r* r+ rf rg r' c C sR t |tj�r t |tj�stdtj��|| _d | _t | j |||||| ||| � | _ d S )N�7Algorithm supplied is not a supported cipher algorithm.) � issubclassr �BlockCipherAlgorithm�CipherAlgorithmr r �UNSUPPORTED_CIPHERrm �_cipherr r3 rn ) r> rd r r! r# r$ r& r( r* r+ rf r' r r r r? � s. � �� �zKBKDFCMAC.__init__�_rI rA � cmac.CMACc C s | j d usJ �t�| j �S rq )r� r �CMAC)r> r� r r r r3 s zKBKDFCMAC._prfrH c C sT | � |�| _| jd us J �ddlm} |�| j�s tdtj��| j� || jj d �S )Nr rh r� rL ) rm r� rk rf �cmac_algorithm_supportedr r r� rn r^ � block_size)r> rH ro r r r r^ s �zKBKDFCMAC.deriveru rv c C rw rq rx rz r r r r{ , r| zKBKDFCMAC.verifyrq )r r r! r" r# r" r$ r% r& r r( r) r* r) r+ r) rf rg r' r% )r� rI rA r� r} r~ r r r r r r� � s � � ' r� )� __future__r �typing� cryptographyr �cryptography.exceptionsr r r r � cryptography.hazmat.primitivesr r r r r �"cryptography.hazmat.primitives.kdfr �Enumr r r rb r� r r r r �<module> s :
| ver. 1.4 |
Github
|
.
| PHP 8.2.28 | Generation time: 0.02 |
proxy
|
phpinfo
|
Settings