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Code Editor : algorithms.cpython-310.pyc
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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 � ��
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