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o �)%a�( � @ s d dl Z G dd� de jd�ZG dd� de jd�ZG dd� de jd�ZG d d � d e jd�ZG d d � d e jd�ZG d d� de jd�ZG dd� de jd�ZG dd� de jd�Z G dd� de jd�Z G dd� de jd�Z G dd� de jd�Z G dd� de jd�Z G dd � d e jd�ZdS ) � Nc @ �6 e Zd Zejdd� �Zejdd� �Zejdd� �ZdS )� CipherBackendc C � dS )zI Return True if the given cipher and mode are supported. N� ��self�cipher�moder r �I/usr/lib/python3/dist-packages/cryptography/hazmat/backends/interfaces.py�cipher_supported � z CipherBackend.cipher_supportedc C r )zF Get a CipherContext that can be used for encryption. Nr r r r r � create_symmetric_encryption_ctx r z-CipherBackend.create_symmetric_encryption_ctxc C r )zF Get a CipherContext that can be used for decryption. Nr r r r r � create_symmetric_decryption_ctx r z-CipherBackend.create_symmetric_decryption_ctxN)�__name__� __module__� __qualname__�abc�abstractmethodr r r r r r r r s r )� metaclassc @ �( e Zd Zejdd� �Zejdd� �ZdS )� HashBackendc C r )zQ Return True if the hash algorithm is supported by this backend. Nr �r � algorithmr r r �hash_supported r zHashBackend.hash_supportedc C r )zH Create a HashContext for calculating a message digest. Nr r r r r �create_hash_ctx$ r zHashBackend.create_hash_ctxN)r r r r r r r r r r r r � r c @ r )� HMACBackendc C r )zb Return True if the hash algorithm is supported for HMAC by this backend. Nr r r r r �hmac_supported, r zHMACBackend.hmac_supportedc C r �zQ Create a context for calculating a message authentication code. Nr )r �keyr r r r �create_hmac_ctx3 r zHMACBackend.create_hmac_ctxN)r r r r r r r r r r r r + � r c @ r )� CMACBackendc C r )zX Returns True if the block cipher is supported for CMAC by this backend Nr r r r r �cmac_algorithm_supported; r z$CMACBackend.cmac_algorithm_supportedc C r r r r r r r �create_cmac_ctxA r zCMACBackend.create_cmac_ctxN)r r r r r r# r$ r r r r r" : r r" c @ r )�PBKDF2HMACBackendc C r )zd Return True if the hash algorithm is supported for PBKDF2 by this backend. Nr r r r r �pbkdf2_hmac_supportedI r z'PBKDF2HMACBackend.pbkdf2_hmac_supportedc C r )zN Return length bytes derived from provided PBKDF2 parameters. Nr )r r �length�salt� iterations� key_materialr r r �derive_pbkdf2_hmacP r z$PBKDF2HMACBackend.derive_pbkdf2_hmacN)r r r r r r& r+ r r r r r% H r! r% c @ sR e Zd Zejdd� �Zejdd� �Zejdd� �Zejdd� �Zejd d � �Z d S ) � RSABackendc C r )zq Generate an RSAPrivateKey instance with public_exponent and a modulus of key_size bits. Nr �r �public_exponent�key_sizer r r �generate_rsa_private_keyZ r z#RSABackend.generate_rsa_private_keyc C r )zQ Returns True if the backend supports the given padding options. Nr )r �paddingr r r �rsa_padding_supporteda r z RSABackend.rsa_padding_supportedc C r )zg Returns True if the backend supports the given parameters for key generation. Nr r- r r r �!generate_rsa_parameters_supportedg r z,RSABackend.generate_rsa_parameters_supportedc C r )z4 Returns an RSAPrivateKey provider. Nr �r �numbersr r r �load_rsa_private_numbersn r z#RSABackend.load_rsa_private_numbersc C r )z3 Returns an RSAPublicKey provider. Nr r4 r r r �load_rsa_public_numberst r z"RSABackend.load_rsa_public_numbersN) r r r r r r0 r2 r3 r6 r7 r r r r r, Y s r, c @ s| e Zd Zejdd� �Zejdd� �Zejdd� �Zejdd� �Zejd d � �Z ejd d � �Z ejd d� �Z ejdd� �Z dS )� DSABackendc C r )zT Generate a DSAParameters instance with a modulus of key_size bits. Nr �r r/ r r r �generate_dsa_parameters| r z"DSABackend.generate_dsa_parametersc C r )zf Generate a DSAPrivateKey instance with parameters as a DSAParameters object. Nr �r � parametersr r r �generate_dsa_private_key� r z#DSABackend.generate_dsa_private_keyc C r )zH Generate a DSAPrivateKey instance using key size only. Nr r9 r r r �'generate_dsa_private_key_and_parameters� r z2DSABackend.generate_dsa_private_key_and_parametersc C r )zX Return True if the hash algorithm is supported by the backend for DSA. Nr r r r r �dsa_hash_supported� r z DSABackend.dsa_hash_supportedc C r )zU Return True if the parameters are supported by the backend for DSA. Nr )r �p�q�gr r r �dsa_parameters_supported� r z#DSABackend.dsa_parameters_supportedc C r )z3 Returns a DSAPrivateKey provider. Nr r4 r r r �load_dsa_private_numbers� r z#DSABackend.load_dsa_private_numbersc C r )z2 Returns a DSAPublicKey provider. Nr r4 r r r �load_dsa_public_numbers� r z"DSABackend.load_dsa_public_numbersc C r )z3 Returns a DSAParameters provider. Nr r4 r r r �load_dsa_parameter_numbers� r z%DSABackend.load_dsa_parameter_numbersN) r r r r r r: r= r> r? rC rD rE rF r r r r r8 { s" r8 c @ sn e Zd Zejdd� �Zejdd� �Zejdd� �Zejdd� �Zejd d � �Z ejd d � �Z ejd d� �Z dS )�EllipticCurveBackendc C r )z Returns True if the backend supports the named elliptic curve with the specified signature algorithm. Nr )r �signature_algorithm�curver r r �,elliptic_curve_signature_algorithm_supported� r zAEllipticCurveBackend.elliptic_curve_signature_algorithm_supportedc C r )zP Returns True if the backend supports the named elliptic curve. Nr �r rI r r r �elliptic_curve_supported� r z-EllipticCurveBackend.elliptic_curve_supportedc C r )zW Return an object conforming to the EllipticCurvePrivateKey interface. Nr rK r r r �#generate_elliptic_curve_private_key� r z8EllipticCurveBackend.generate_elliptic_curve_private_keyc C r )zT Return an EllipticCurvePublicKey provider using the given numbers. Nr r4 r r r �"load_elliptic_curve_public_numbers� r z7EllipticCurveBackend.load_elliptic_curve_public_numbersc C r )zU Return an EllipticCurvePrivateKey provider using the given numbers. Nr r4 r r r �#load_elliptic_curve_private_numbers� r z8EllipticCurveBackend.load_elliptic_curve_private_numbersc C r )zV Returns whether the exchange algorithm is supported by this backend. Nr )r r rI r r r �+elliptic_curve_exchange_algorithm_supported� r z@EllipticCurveBackend.elliptic_curve_exchange_algorithm_supportedc C r )zL Compute the private key given the private value and curve. Nr )r � private_valuerI r r r �!derive_elliptic_curve_private_key� r z6EllipticCurveBackend.derive_elliptic_curve_private_keyN) r r r r r rJ rL rM rN rO rP rR r r r r rG � s rG c @ r )�PEMSerializationBackendc C r )zz Loads a private key from PEM encoded data, using the provided password if the data is encrypted. Nr �r �data�passwordr r r �load_pem_private_key� r z,PEMSerializationBackend.load_pem_private_keyc C r )z; Loads a public key from PEM encoded data. Nr �r rU r r r �load_pem_public_key� r z+PEMSerializationBackend.load_pem_public_keyc C r )zC Load encryption parameters from PEM encoded data. Nr rX r r r �load_pem_parameters� r z+PEMSerializationBackend.load_pem_parametersN)r r r r r rW rY rZ r r r r rS � � rS c @ r )�DERSerializationBackendc C r )zy Loads a private key from DER encoded data. Uses the provided password if the data is encrypted. Nr rT r r r �load_der_private_key� r z,DERSerializationBackend.load_der_private_keyc C r )z; Loads a public key from DER encoded data. Nr rX r r r �load_der_public_key� r z+DERSerializationBackend.load_der_public_keyc C r )zC Load encryption parameters from DER encoded data. Nr rX r r r �load_der_parameters r z+DERSerializationBackend.load_der_parametersN)r r r r r r] r^ r_ r r r r r\ � r[ r\ c @ s� e Zd Zejdd� �Zejdd� �Zejdd� �Zejdd� �Zejd d � �Z ejd d � �Z ejd d� �Z ejdd� �Z ejdd� �Z dS )� X509Backendc C r )zB Load an X.509 certificate from PEM encoded data. Nr rX r r r �load_pem_x509_certificate r z%X509Backend.load_pem_x509_certificatec C r )zB Load an X.509 certificate from DER encoded data. Nr rX r r r �load_der_x509_certificate r z%X509Backend.load_der_x509_certificatec C r )z: Load an X.509 CSR from DER encoded data. Nr rX r r r �load_der_x509_csr r z X509Backend.load_der_x509_csrc C r )z: Load an X.509 CSR from PEM encoded data. Nr rX r r r �load_pem_x509_csr r z X509Backend.load_pem_x509_csrc C r )zI Create and sign an X.509 CSR from a CSR builder object. Nr �r �builder� private_keyr r r r �create_x509_csr r zX509Backend.create_x509_csrc C r )zX Create and sign an X.509 certificate from a CertificateBuilder object. Nr re r r r �create_x509_certificate& r z#X509Backend.create_x509_certificatec C r )z| Create and sign an X.509 CertificateRevocationList from a CertificateRevocationListBuilder object. Nr re r r r �create_x509_crl, r zX509Backend.create_x509_crlc C r )ze Create a RevokedCertificate object from a RevokedCertificateBuilder object. Nr )r rf r r r � create_x509_revoked_certificate3 r z+X509Backend.create_x509_revoked_certificatec C r )zG Compute the DER encoded bytes of an X509 Name object. Nr )r �namer r r �x509_name_bytes: r zX509Backend.x509_name_bytesN)r r r r r ra rb rc rd rh ri rj rk rm r r r r r` s& r` c @ s~ e Zd Zejdd� �Zejdd� �Zejdd� �Zejdd� �Zejd d � �Z ejd d � �Z ejddd��Z ejdd� �Z d S )� DHBackendc C r )z� Generate a DHParameters instance with a modulus of key_size bits. Using the given generator. Often 2 or 5. Nr �r � generatorr/ r r r �generate_dh_parametersB r z DHBackend.generate_dh_parametersc C r )zd Generate a DHPrivateKey instance with parameters as a DHParameters object. Nr r; r r r �generate_dh_private_keyI r z!DHBackend.generate_dh_private_keyc C r )zx Generate a DHPrivateKey instance using key size only. Using the given generator. Often 2 or 5. Nr ro r r r �&generate_dh_private_key_and_parametersP r z0DHBackend.generate_dh_private_key_and_parametersc C r )z; Load a DHPrivateKey from DHPrivateNumbers Nr r4 r r r �load_dh_private_numbersW r z!DHBackend.load_dh_private_numbersc C r )z: Load a DHPublicKey from DHPublicNumbers. Nr r4 r r r �load_dh_public_numbers] r z DHBackend.load_dh_public_numbersc C r )z< Load DHParameters from DHParameterNumbers. Nr r4 r r r �load_dh_parameter_numbersc r z#DHBackend.load_dh_parameter_numbersNc C r )zV Returns whether the backend supports DH with these parameter values. Nr )r r@ rB rA r r r �dh_parameters_supportedi r z!DHBackend.dh_parameters_supportedc C r )zw Returns True if the backend supports the serialization of DH objects with subgroup order (q). Nr )r r r r � dh_x942_serialization_supportedo r z)DHBackend.dh_x942_serialization_supported)N) r r r r r rq rr rs rt ru rv rw rx r r r r rn A s" rn c @ s e Zd Zejdd� �ZdS )� ScryptBackendc C r )zG Return bytes derived from provided Scrypt parameters. Nr )r r* r( r' �n�rr@ r r r � derive_scryptx r zScryptBackend.derive_scryptN)r r r r r r| r r r r ry w s ry )r �ABCMetar r r r" r% r, r8 rG rS r\ r` rn ry r r r r �<module> s "3/:6
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