Server : LiteSpeed
System : Linux server51.dnsbootclub.com 4.18.0-553.62.1.lve.el8.x86_64 #1 SMP Mon Jul 21 17:50:35 UTC 2025 x86_64
User : nandedex ( 1060)
PHP Version : 8.1.33
Disable Function : NONE
Directory :  /opt/cppython/lib/python3.8/site-packages/google/auth/crypt/__pycache__/

Upload File :
current_dir [ Writeable ] document_root [ Writeable ]


Current File : //opt/cppython/lib/python3.8/site-packages/google/auth/crypt/__pycache__/es256.cpython-38.pyc
U

O��gk�@s�dZddlmZddlZddlmZddlmZddlmZddl	m
Z
ddl	mZdd	lm
Z
dd
lmZddlZddlmZddlmZd
Ze��Ze��ZGdd�dej�ZGdd�dejej�ZdS)zIECDSA (ES256) verifier and signer that use the ``cryptography`` library.
�)�utilsN)�backends)�hashes)�
serialization)�ec)�padding)�decode_dss_signature)�encode_dss_signature)�_helpers)�bases-----BEGIN CERTIFICATE-----c@s8eZdZdZdd�Ze�ej�dd��Z	e
dd��ZdS)	�
ES256Verifierz�Verifies ECDSA cryptographic signatures using public keys.

    Args:
        public_key (
                cryptography.hazmat.primitives.asymmetric.ec.ECDSAPublicKey):
            The public key used to verify signatures.
    cCs
||_dS�N)�_pubkey)�self�
public_key�r�D/opt/cppython/lib/python3.8/site-packages/google/auth/crypt/es256.py�__init__/szES256Verifier.__init__c	Cs�t�|�}t|�dkrdSt��r8tj|dd�dd�ntj|dd�dd�}t��rltj|dd�dd�ntj|dd�dd�}t||�}t�|�}z |j	�
||t�t
����WdSttjjfk
r�YdSXdS)N�@F� �big��	byteorderT)r
�to_bytes�len�is_python_3�int�
from_bytesrZint_from_bytesr	r�verifyr�ECDSAr�SHA256�
ValueError�cryptography�
exceptionsZInvalidSignature)r�message�	signatureZ	sig_bytes�r�sZasn1_sigrrrr2s$
����

zES256Verifier.verifycCs>t�|�}t|kr*tj�|t�}|��}nt�	|t�}||�S)ayConstruct an Verifier instance from a public key or public
        certificate string.

        Args:
            public_key (Union[str, bytes]): The public key in PEM format or the
                x509 public key certificate.

        Returns:
            Verifier: The constructed verifier.

        Raises:
            ValueError: If the public key can't be parsed.
        )
r
r�_CERTIFICATE_MARKERr"�x509Zload_pem_x509_certificate�_BACKENDrrZload_pem_public_key)�clsrZpublic_key_data�certZpubkeyrrr�from_stringKs
�
zES256Verifier.from_stringN)�__name__�
__module__�__qualname__�__doc__rr
�copy_docstringr�Verifierr�classmethodr-rrrrr&s

rc@sdeZdZdZddd�Zee�ej	�dd���Z
e�ej	�dd��Zedd	d
��Z
dd�Zd
d�ZdS)�ES256Signera�Signs messages with an ECDSA private key.

    Args:
        private_key (
                cryptography.hazmat.primitives.asymmetric.ec.ECDSAPrivateKey):
            The private key to sign with.
        key_id (str): Optional key ID used to identify this private key. This
            can be useful to associate the private key with its associated
            public key or certificate.
    NcCs||_||_dSr
)�_key�_key_id)r�private_key�key_idrrrrtszES256Signer.__init__cCs|jSr
)r7)rrrrr9xszES256Signer.key_idcCsjt�|�}|j�|t�t����}t|�\}}t�	�rR|jddd�|jddd�St
�|d�t
�|d�S)Nrrr)r
rr6�signrrrr rrrZint_to_bytes)rr$Zasn1_signaturer&r'rrrr:}s
��zES256Signer.signcCs&t�|�}tj|dtd�}|||d�S)alConstruct a RSASigner from a private key in PEM format.

        Args:
            key (Union[bytes, str]): Private key in PEM format.
            key_id (str): An optional key id used to identify the private key.

        Returns:
            google.auth.crypt._cryptography_rsa.RSASigner: The
            constructed signer.

        Raises:
            ValueError: If ``key`` is not ``bytes`` or ``str`` (unicode).
            UnicodeDecodeError: If ``key`` is ``bytes`` but cannot be decoded
                into a UTF-8 ``str``.
            ValueError: If ``cryptography`` "Could not deserialize key data."
        N)�password�backend)r9)r
rr�load_pem_private_keyr*)r+�keyr9r8rrrr-�s
�zES256Signer.from_stringcCs0|j��}|jjtjjtjjt�	�d�|d<|S)z1Pickle helper that serializes the _key attribute.)�encoding�formatZencryption_algorithmr6)
�__dict__�copyr6Z
private_bytesrZEncodingZPEMZ
PrivateFormatZPKCS8ZNoEncryption�r�staterrr�__getstate__�s
�
zES256Signer.__getstate__cCs$t�|dd�|d<|j�|�dS)z3Pickle helper that deserializes the _key attribute.r6N)rr=rA�updaterCrrr�__setstate__�szES256Signer.__setstate__)N)N)r.r/r0r1r�propertyr
r2r�Signerr9r:r4r-rErGrrrrr5hs




r5)r1r"rZcryptography.exceptionsZcryptography.hazmatrZcryptography.hazmat.primitivesrrZ)cryptography.hazmat.primitives.asymmetricrrZ/cryptography.hazmat.primitives.asymmetric.utilsrr	Zcryptography.x509Zgoogle.authr
Zgoogle.auth.cryptrr(Zdefault_backendr*ZPKCS1v15Z_PADDINGr3rrIZFromServiceAccountMixinr5rrrr�<module>s"B

F1le Man4ger