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algorithms.cpython-310.pyc
o �7�bV � @ s� d dl Z d dlZd dlZddlmZ ddlmZmZmZm Z m Z m Z m Z m Z mZ zZd dlZd dlmZ d dlmZ d dlmZmZ d dlmZmZ d d lmZm Z d d l m Z m Z d d l m!Z!m"Z"m#Z#m$Z$m%Z%m&Z&m'Z'm(Z( d d l)m*Z*m+Z+m,Z,m-Z-m.Z.m/Z/m0Z0 d Z1W n e2y� dZ1Y nw h d�Z3dd� Z4G dd� d�Z5G dd� de5�Z6G dd� de5�Z7e1r�G dd� de5�Z8G dd� de5�Z9G d d � d e8�Z:G d d � d e5�Z;dS dS ) � N� ��InvalidKeyError) �base64url_decode�base64url_encode�der_to_raw_signature� force_bytes�from_base64url_uint� is_pem_format� is_ssh_key�raw_to_der_signature�to_base64url_uint)�InvalidSignature)�hashes)�ec�padding)�EllipticCurvePrivateKey�EllipticCurvePublicKey)�Ed448PrivateKey�Ed448PublicKey)�Ed25519PrivateKey�Ed25519PublicKey)� RSAPrivateKey�RSAPrivateNumbers� RSAPublicKey�RSAPublicNumbers� rsa_crt_dmp1� rsa_crt_dmq1� rsa_crt_iqmp�rsa_recover_prime_factors)�Encoding� NoEncryption� PrivateFormat� PublicFormat�load_pem_private_key�load_pem_public_key�load_ssh_public_keyTF> �ES256�ES384�ES512�ES521�EdDSA�PS256�PS384�PS512�RS256�RS384�RS512�ES256Kc C s� t � ttj�ttj�ttj�d�} trG| �ttj�ttj�ttj�ttj�ttj�ttj�ttj�ttj�t t j�t t j�t t j�t � d� � | S )zE Returns the algorithms that are implemented by the library. )�none�HS256�HS384�HS512) r/ r0 r1 r' r2 r( r* r) r, r- r. r+ ) � NoneAlgorithm� HMACAlgorithm�SHA256�SHA384�SHA512� has_crypto�update� RSAAlgorithm� ECAlgorithm�RSAPSSAlgorithm� OKPAlgorithm)�default_algorithms� rC �0/usr/lib/python3/dist-packages/jwt/algorithms.py�get_default_algorithmsK s0 ����rE c @ s@ e Zd ZdZdd� Zdd� Zdd� Zedd � �Zed d � �Z d S ) � AlgorithmzH The interface for an algorithm used to sign and verify tokens. c C � t �)z� Performs necessary validation and conversions on the key and returns the key value in the proper format for sign() and verify(). ��NotImplementedError��self�keyrC rC rD � prepare_keyr � zAlgorithm.prepare_keyc C rG )zn Returns a digital signature for the specified message using the specified key value. rH �rK �msgrL rC rC rD �signy rN zAlgorithm.signc C rG )zz Verifies that the specified digital signature is valid for the specified message and key values. rH �rK rP rL �sigrC rC rD �verify� rN zAlgorithm.verifyc C rG )z7 Serializes a given RSA key into a JWK rH ��key_objrC rC rD �to_jwk� rN zAlgorithm.to_jwkc C rG )zb Deserializes a given RSA key from JWK back into a PublicKey or PrivateKey object rH )�jwkrC rC rD �from_jwk� rN zAlgorithm.from_jwkN) �__name__� __module__� __qualname__�__doc__rM rQ rT � staticmethodrW rY rC rC rC rD rF m s rF c @ s( e Zd ZdZdd� Zdd� Zdd� ZdS ) r7 zZ Placeholder for use when no signing or verification operations are required. c C s |dkrd }|d urt d��|S )N� z*When alg = "none", key value must be None.r rJ rC rC rD rM � s zNoneAlgorithm.prepare_keyc C � dS )N� rC rO rC rC rD rQ � � zNoneAlgorithm.signc C r` )NFrC rR rC rC rD rT � rb zNoneAlgorithm.verifyN)rZ r[ r\ r] rM rQ rT rC rC rC rD r7 � s r7 c @ sZ e Zd ZdZejZejZej Z dd� Z dd� Z e dd� �Ze dd � �Zd d � Zd d � ZdS )r8 zf Performs signing and verification operations using HMAC and the specified hash function. c C � || _ d S �N��hash_alg�rK rf rC rC rD �__init__� � zHMACAlgorithm.__init__c C s$ t |�}t|�s t|�rtd��|S )NzdThe specified key is an asymmetric key or x509 certificate and should not be used as an HMAC secret.)r r r r rJ rC rC rD rM � s �zHMACAlgorithm.prepare_keyc C s t �tt| ���� dd��S )N�oct)�k�kty)�json�dumpsr r �decoderU rC rC rD rW � s ��zHMACAlgorithm.to_jwkc C sh zt | t�r t�| �}n t | t�r| }nt�W n ty" td��w |�d�dkr.td��t|d �S )N�Key is not valid JSONrl rj zNot an HMAC keyrk ) � isinstance�strrm �loads�dict� ValueErrorr �getr )rX �objrC rC rD rY � s � � zHMACAlgorithm.from_jwkc C s t �||| j��� S rd )�hmac�newrf �digestrO rC rC rD rQ � � zHMACAlgorithm.signc C s t �|| �||��S rd )rx �compare_digestrQ rR rC rC rD rT � r{ zHMACAlgorithm.verifyN)rZ r[ r\ r] �hashlib�sha256r9 �sha384r: �sha512r; rh rM r^ rW rY rQ rT rC rC rC rD r8 � s r8 c @ sZ e Zd ZdZejZejZejZdd� Zdd� Z e dd� �Z e dd � �Z d d � Z d d � ZdS )r> z~ Performs signing and verification operations using RSASSA-PKCS-v1_5 and the specified hash function. c C rc rd re rg rC rC rD rh � ri zRSAAlgorithm.__init__c C sx t |ttf�r |S t |ttf�std��t|�}z|�d�r%t|�}W |S t |d d�}W |S t y; t |�}Y |S w )N� Expecting a PEM-formatted key.s ssh-rsa��password) rq r r �bytesrr � TypeErrorr � startswithr& r$ ru r% rJ rC rC rD rM � s � � �zRSAAlgorithm.prepare_keyc C s� d }t | dd �rE| �� }ddgt|jj��� t|jj��� t|j��� t|j��� t|j ��� t|j ��� t|j ��� t|j ��� d� }n!t | dd �rb| �� }ddgt|j��� t|j��� d�}nt d��t�|�S )N�private_numbers�RSArQ ) rl �key_ops�n�e�d�p�q�dp�dq�qirT )rl r� r� r� �Not a public or private key)�getattrr� r �public_numbersr� ro r� r� r� r� �dmp1�dmq1�iqmpr rm rn )rV rw �numbersrC rC rD rW s. � � zRSAAlgorithm.to_jwkc s� zt | t�r t�| �� n t | t�r| � nt�W n ty" td��w � �d�dkr.td��d� v r�d� v r�d� v r�d� v rBtd ��g d �}� fd d �|D �}t|�}|r]t |�s]td ��t t � d �t � d ��}|r�t t � d �t � d �t � d �t � d �t � d �t � d �|d�}|�� S t � d �}t |j||j�\}}t |||t||�t||�t||�|d�}|�� S d� v r�d� v r�t t � d �t � d ��}|�� S td��)Nrp rl r� zNot an RSA keyr� r� r� �othz5Unsupported RSA private key: > 2 primes not supported)r� r� r� r� r� c s g | ]}|� v �qS rC rC )�.0�prop�rw rC rD � <listcomp>A s z)RSAAlgorithm.from_jwk.<locals>.<listcomp>z@RSA key must include all parameters if any are present besides dr� r� r� r� r� )r� r� r� r� r� r� r� r� )rq rr rm rs rt ru r rv �any�allr r r r r� r� r r r � private_key� public_key) rX � other_props� props_found�any_props_foundr� r� r� r� r� rC r� rD rY * sx � �� � � � � �� �zRSAAlgorithm.from_jwkc C s |� |t�� | �� �S rd )rQ r �PKCS1v15rf rO rC rC rD rQ t s zRSAAlgorithm.signc C s4 z|� ||t�� | �� � W dS ty Y dS w )NTF)rT r r� rf r rR rC rC rD rT w s �zRSAAlgorithm.verifyN)rZ r[ r\ r] r r9 r: r; rh rM r^ rW rY rQ rT rC rC rC rD r> � s # I r> c @ sN e Zd ZdZejZejZejZdd� Zdd� Z dd� Z dd � Z e d d � �Z d S ) r? zr Performs signing and verification operations using ECDSA and the specified hash function c C rc rd re rg rC rC rD rh � ri zECAlgorithm.__init__c C sx t |ttf�r |S t |ttf�std��t|�}z|�d�r%t|�}W |S t |�}W |S t y; t |d d�}Y |S w )Nr� s ecdsa-sha2-r� ) rq r r r� rr r� r r� r& r% ru r$ rJ rC rC rD rM � s � ��zECAlgorithm.prepare_keyc C s" |� |t�| �� ��}t||j�S rd )rQ r �ECDSArf r �curve)rK rP rL �der_sigrC rC rD rQ � s zECAlgorithm.signc C sl zt ||j�}W n ty Y dS w zt|t�r |�� }|�||t�| � � �� W dS t y5 Y dS w )NFT) r r� ru rq r r� rT r r� rf r )rK rP rL rS r� rC rC rD rT � s � �zECAlgorithm.verifyc C s& zt | t�r t�| �}n t | t�r| }nt�W n ty" td��w |�d�dkr.td��d|vs6d|vr:td��t|�d��}t|�d��}|�d�}|dkrmt |�t |� kr_d krin td ��t � � }nktd ��|d kr�t |�t |� krd kr�n td ��t � � }nKtd ��|dkr�t |�t |� kr�dkr�n td��t � � }n+td��|dkr�t |�t |� kr�d kr�n td��t �� }n td��td|� ���t jtj|dd�tj|dd�|d�}d|vr�|�� S t|�d��}t |�t |�k�rtdt |�|��t �tj|dd�|��� S )Nrp rl �ECzNot an Elliptic curve key�x�y�crvzP-256� z)Coords should be 32 bytes for curve P-256zP-384�0 z)Coords should be 48 bytes for curve P-384zP-521�B z)Coords should be 66 bytes for curve P-521� secp256k1z-Coords should be 32 bytes for curve secp256k1�Invalid curve: �big)� byteorder)r� r� r� r� z!D should be {} bytes for curve {})rq rr rm rs rt ru r rv r �lenr � SECP256R1� SECP384R1� SECP521R1� SECP256K1�EllipticCurvePublicNumbers�int� from_bytesr� �EllipticCurvePrivateNumbersr� )rX rw r� r� r� � curve_objr� r� rC rC rD rY � sv � � � � � � �� � ���zECAlgorithm.from_jwkN)rZ r[ r\ r] r r9 r: r; rh rM rQ rT r^ rY rC rC rC rD r? ~ s r? c @ s e Zd ZdZdd� Zdd� ZdS )r@ zA Performs a signature using RSASSA-PSS with MGF1 c C s* |� |tjt�| �� �| jjd�| �� �S )N��mgf� salt_length)rQ r �PSS�MGF1rf � digest_sizerO rC rC rD rQ � s ��zRSAPSSAlgorithm.signc C sH z|� ||tjt�| �� �| jjd�| �� � W dS ty# Y dS w )Nr� TF)rT r r� r� rf r� r rR rC rC rD rT s �� �zRSAPSSAlgorithm.verifyN)rZ r[ r\ r] rQ rT rC rC rC rD r@ � s r@ c @ sH e Zd ZdZdd� Zdd� Zdd� Zdd � Zed d � �Z ed d � �Z dS )rA z� Performs signing and verification operations using EdDSA This class requires ``cryptography>=2.6`` to be installed. c K s d S rd rC )rK �kwargsrC rC rD rh rb zOKPAlgorithm.__init__c C s� t |ttf�r6t |t�r|�d�}|�d�}d|v r t|�}nd|v r*t|d d�}n |dd� dkr6t|�}t |tt t t f�sCt d��|S ) N�utf-8z-----BEGIN PUBLICz-----BEGIN PRIVATEr� r � zssh-zcExpecting a EllipticCurvePrivateKey/EllipticCurvePublicKey. Wrong key provided for EdDSA algorithms) rq r� rr �encodero r% r$ r& r r r r r )rK rL �str_keyrC rC rD rM s$ ��zOKPAlgorithm.prepare_keyc C s$ t |�tur t|d�n|}|�|�S )aR Sign a message ``msg`` using the EdDSA private key ``key`` :param str|bytes msg: Message to sign :param Ed25519PrivateKey}Ed448PrivateKey key: A :class:`.Ed25519PrivateKey` or :class:`.Ed448PrivateKey` iinstance :return bytes signature: The signature, as bytes r� )�typer� rQ rO rC rC rD rQ 6 s zOKPAlgorithm.signc C sv z.t |�tur t|d�n|}t |�turt|d�n|}t|ttf�r&|�� }|�||� W dS tjj y: Y dS w )a� Verify a given ``msg`` against a signature ``sig`` using the EdDSA key ``key`` :param str|bytes sig: EdDSA signature to check ``msg`` against :param str|bytes msg: Message to sign :param Ed25519PrivateKey|Ed25519PublicKey|Ed448PrivateKey|Ed448PublicKey key: A private or public EdDSA key instance :return bool verified: True if signature is valid, False if not. r� TF) r� r� rq r r r� rT � cryptography� exceptionsr rR rC rC rD rT A s �zOKPAlgorithm.verifyc C s� t | ttf�r(| jtjtjd�}t | t�rdnd}t�t t |��� � d|d��S t | t t f�rd| jtjtjt� d�}| �� jtjtjd�}t | t �rLdnd}t�t t |��� � t t |��� � d|d��S td��) N)�encoding�format�Ed25519�Ed448�OKP)r� rl r� )r� r� �encryption_algorithm)r� r� rl r� r� )rq r r � public_bytesr �Rawr# rm rn r r ro r r � private_bytesr" r! r� r )rL r� r� r� rC rC rD rW V s> ������� zOKPAlgorithm.to_jwkc C s zt | t�r t�| �}n t | t�r| }nt�W n ty" td��w |�d�dkr.td��|�d�}|dkrB|dkrBtd|� ���d |vrJtd ��t|�d ��}z+d |vrf|dkr`t � |�W S t � |�W S t|�d ��}|dkrwt � |�W S t� |�W S ty� } ztd �|�d }~ww ) Nrp rl r� zNot an Octet Key Pairr� r� r� r� r� z OKP should have "x" parameterr� zInvalid key parameter)rq rr rm rs rt ru r rv r r �from_public_bytesr r �from_private_bytesr )rX rw r� r� r� �errrC rC rD rY ~ s> � � ��zOKPAlgorithm.from_jwkN) rZ r[ r\ r] rh rM rQ rT r^ rW rY rC rC rC rD rA s 'rA )<r} rx rm r� r �utilsr r r r r r r r r �cryptography.exceptionsr� r � cryptography.hazmat.primitivesr �)cryptography.hazmat.primitives.asymmetricr r �,cryptography.hazmat.primitives.asymmetric.ecr r �/cryptography.hazmat.primitives.asymmetric.ed448r r �1cryptography.hazmat.primitives.asymmetric.ed25519r r �-cryptography.hazmat.primitives.asymmetric.rsar r r r r r r r �,cryptography.hazmat.primitives.serializationr r! r" r# r$ r% r& r< �ModuleNotFoundError�requires_cryptographyrE rF r7 r8 r> r? r@ rA rC rC rC rD �<module> sB , ($ �")9 x � ��