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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
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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
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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
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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
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r8 c @ sn e Zd Zejdd� �Zejdd� �Zejdd� �Zejdd� �Zejd d
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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
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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
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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
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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
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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
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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
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