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CipherBackendc C s dS )zI
Return True if the given cipher and mode are supported.
N� ��selfZcipher�moder r �M/usr/lib64/python3.9/site-packages/cryptography/hazmat/backends/interfaces.py�cipher_supported
s z CipherBackend.cipher_supportedc C s dS )zF
Get a CipherContext that can be used for encryption.
Nr r r r r � create_symmetric_encryption_ctx s z-CipherBackend.create_symmetric_encryption_ctxc C s dS )zF
Get a CipherContext that can be used for decryption.
Nr r r r r � create_symmetric_decryption_ctx s z-CipherBackend.create_symmetric_decryption_ctxN)�__name__�
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r )� metaclassc @ s( e Zd Zejdd� �Zejdd� �ZdS )� HashBackendc C s dS )zQ
Return True if the hash algorithm is supported by this backend.
Nr �r � algorithmr r r �hash_supported s zHashBackend.hash_supportedc C s dS )zH
Create a HashContext for calculating a message digest.
Nr r r r r �create_hash_ctx$ s zHashBackend.create_hash_ctxN)r r r
r r r r r r r r r s
r c @ s( e Zd Zejdd� �Zejdd� �ZdS )� HMACBackendc C s dS )zb
Return True if the hash algorithm is supported for HMAC by this
backend.
Nr r r r r �hmac_supported, s zHMACBackend.hmac_supportedc C s dS �zQ
Create a context for calculating a message authentication code.
Nr )r �keyr r r r �create_hmac_ctx3 s zHMACBackend.create_hmac_ctxN)r r r
r r r r r r r r r + s
r c @ s( e Zd Zejdd� �Zejdd� �ZdS )� CMACBackendc C s dS )zX
Returns True if the block cipher is supported for CMAC by this backend
Nr r r r r �cmac_algorithm_supported; s z$CMACBackend.cmac_algorithm_supportedc C s dS r r r r r r �create_cmac_ctxA s zCMACBackend.create_cmac_ctxN)r r r
r r r r r r r r r : s
r c @ s( e Zd Zejdd� �Zejdd� �ZdS )�PBKDF2HMACBackendc C s dS )zd
Return True if the hash algorithm is supported for PBKDF2 by this
backend.
Nr r r r r �pbkdf2_hmac_supportedI s z'PBKDF2HMACBackend.pbkdf2_hmac_supportedc C s dS )zN
Return length bytes derived from provided PBKDF2 parameters.
Nr )r r �length�saltZ
iterations� key_materialr r r �derive_pbkdf2_hmacP s z$PBKDF2HMACBackend.derive_pbkdf2_hmacN)r r r
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r c @ sR e Zd Zejdd� �Zejdd� �Zejdd� �Zejdd� �Zejd d
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RSABackendc C s dS )zq
Generate an RSAPrivateKey instance with public_exponent and a modulus
of key_size bits.
Nr �r Zpublic_exponent�key_sizer r r �generate_rsa_private_keyZ s z#RSABackend.generate_rsa_private_keyc C s dS )zQ
Returns True if the backend supports the given padding options.
Nr )r Zpaddingr r r �rsa_padding_supporteda s z RSABackend.rsa_padding_supportedc C s dS )zg
Returns True if the backend supports the given parameters for key
generation.
Nr r% r r r �!generate_rsa_parameters_supportedg s z,RSABackend.generate_rsa_parameters_supportedc C s dS )z4
Returns an RSAPrivateKey provider.
Nr �r Znumbersr r r �load_rsa_private_numbersn s z#RSABackend.load_rsa_private_numbersc C s dS )z3
Returns an RSAPublicKey provider.
Nr r* r r r �load_rsa_public_numberst s z"RSABackend.load_rsa_public_numbersN)
r r r
r r r' r( r) r+ r, r r r r r$ Y s
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d� �Z ejdd� �Z dS )�
DSABackendc C s dS )zT
Generate a DSAParameters instance with a modulus of key_size bits.
Nr �r r& r r r �generate_dsa_parameters| s z"DSABackend.generate_dsa_parametersc C s dS )zf
Generate a DSAPrivateKey instance with parameters as a DSAParameters
object.
Nr �r �
parametersr r r �generate_dsa_private_key� s z#DSABackend.generate_dsa_private_keyc C s dS )zH
Generate a DSAPrivateKey instance using key size only.
Nr r. r r r �'generate_dsa_private_key_and_parameters� s z2DSABackend.generate_dsa_private_key_and_parametersc C s dS )zX
Return True if the hash algorithm is supported by the backend for DSA.
Nr r r r r �dsa_hash_supported� s z DSABackend.dsa_hash_supportedc C s dS )zU
Return True if the parameters are supported by the backend for DSA.
Nr )r �p�q�gr r r �dsa_parameters_supported� s z#DSABackend.dsa_parameters_supportedc C s dS )z3
Returns a DSAPrivateKey provider.
Nr r* r r r �load_dsa_private_numbers� s z#DSABackend.load_dsa_private_numbersc C s dS )z2
Returns a DSAPublicKey provider.
Nr r* r r r �load_dsa_public_numbers� s z"DSABackend.load_dsa_public_numbersc C s dS )z3
Returns a DSAParameters provider.
Nr r* r r r �load_dsa_parameter_numbers� s z%DSABackend.load_dsa_parameter_numbersN)
r r r
r r r/ r2 r3 r4 r8 r9 r: r; r r r r r- { s
r- c @ sn e Zd Zejdd� �Zejdd� �Zejdd� �Zejdd� �Zejd d
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d� �Z dS )�EllipticCurveBackendc C s dS )z
Returns True if the backend supports the named elliptic curve with the
specified signature algorithm.
Nr )r Zsignature_algorithm�curver r r �,elliptic_curve_signature_algorithm_supported� s zAEllipticCurveBackend.elliptic_curve_signature_algorithm_supportedc C s dS )zP
Returns True if the backend supports the named elliptic curve.
Nr �r r= r r r �elliptic_curve_supported� s z-EllipticCurveBackend.elliptic_curve_supportedc C s dS )zW
Return an object conforming to the EllipticCurvePrivateKey interface.
Nr r? r r r �#generate_elliptic_curve_private_key� s z8EllipticCurveBackend.generate_elliptic_curve_private_keyc C s dS )zT
Return an EllipticCurvePublicKey provider using the given numbers.
Nr r* r r r �"load_elliptic_curve_public_numbers� s z7EllipticCurveBackend.load_elliptic_curve_public_numbersc C s dS )zU
Return an EllipticCurvePrivateKey provider using the given numbers.
Nr r* r r r �#load_elliptic_curve_private_numbers� s z8EllipticCurveBackend.load_elliptic_curve_private_numbersc C s dS )zV
Returns whether the exchange algorithm is supported by this backend.
Nr )r r r= r r r �+elliptic_curve_exchange_algorithm_supported� s z@EllipticCurveBackend.elliptic_curve_exchange_algorithm_supportedc C s dS )zL
Compute the private key given the private value and curve.
Nr )r Z
private_valuer= r r r �!derive_elliptic_curve_private_key� s z6EllipticCurveBackend.derive_elliptic_curve_private_keyN) r r r
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r< c @ s6 e Zd Zejdd� �Zejdd� �Zejdd� �ZdS )�PEMSerializationBackendc C s dS )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� s z,PEMSerializationBackend.load_pem_private_keyc C s dS )z;
Loads a public key from PEM encoded data.
Nr �r rH r r r �load_pem_public_key� s z+PEMSerializationBackend.load_pem_public_keyc C s dS )zC
Load encryption parameters from PEM encoded data.
Nr rK r r r �load_pem_parameters� s z+PEMSerializationBackend.load_pem_parametersN)r r r
r r rJ rL rM r r r r rF � s
rF c @ s6 e Zd Zejdd� �Zejdd� �Zejdd� �ZdS )�DERSerializationBackendc C s dS )zy
Loads a private key from DER encoded data. Uses the provided password
if the data is encrypted.
Nr rG r r r �load_der_private_key� s z,DERSerializationBackend.load_der_private_keyc C s dS )z;
Loads a public key from DER encoded data.
Nr rK r r r �load_der_public_key� s z+DERSerializationBackend.load_der_public_keyc C s dS )zC
Load encryption parameters from DER encoded data.
Nr rK r r r �load_der_parameters s z+DERSerializationBackend.load_der_parametersN)r r r
r r rO rP rQ r r r r rN � s
rN c @ s~ e Zd Zejdd� �Zejdd� �Zejdd� �Zejdd� �Zejd d
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ejddd��Z ejdd� �Z d
S )� DHBackendc C s dS )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_parameters s z DHBackend.generate_dh_parametersc C s dS )zd
Generate a DHPrivateKey instance with parameters as a DHParameters
object.
Nr r0 r r r �generate_dh_private_key s z!DHBackend.generate_dh_private_keyc C s dS )zx
Generate a DHPrivateKey instance using key size only.
Using the given generator. Often 2 or 5.
Nr rS r r r �&generate_dh_private_key_and_parameters s z0DHBackend.generate_dh_private_key_and_parametersc C s dS )z;
Load a DHPrivateKey from DHPrivateNumbers
Nr r* r r r �load_dh_private_numbers s z!DHBackend.load_dh_private_numbersc C s dS )z:
Load a DHPublicKey from DHPublicNumbers.
Nr r* r r r �load_dh_public_numbers# s z DHBackend.load_dh_public_numbersc C s dS )z<
Load DHParameters from DHParameterNumbers.
Nr r* r r r �load_dh_parameter_numbers) s z#DHBackend.load_dh_parameter_numbersNc C s dS )zV
Returns whether the backend supports DH with these parameter values.
Nr )r r5 r7 r6 r r r �dh_parameters_supported/ s z!DHBackend.dh_parameters_supportedc C s dS )zw
Returns True if the backend supports the serialization of DH objects
with subgroup order (q).
Nr �r r r r � dh_x942_serialization_supported5 s z)DHBackend.dh_x942_serialization_supported)N)
r r r
r r rU rV rW rX rY rZ r[ r] r r r r rR s
rR c @ s( e Zd Zejdd� �Zejdd� �ZdS )�
ScryptBackendc C s dS )zG
Return bytes derived from provided Scrypt parameters.
Nr )r r" r! r �n�rr5 r r r �
derive_scrypt> s zScryptBackend.derive_scryptc C s dS )z5
Return True if Scrypt is supported.
Nr r\ r r r �scrypt_supportedD s z ScryptBackend.scrypt_supportedN)r r r
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� �Z ejd d � �Z
d
S )�Backendc C s dS �z4
Returns a list of x509.Certificate
Nr rK r r r �load_pem_pkcs7_certificates\ s z#Backend.load_pem_pkcs7_certificatesc C s dS rd r rK r r r �load_der_pkcs7_certificatesb s z#Backend.load_der_pkcs7_certificatesc C s dS �z
Returns bytes
Nr )r Zbuilder�encoding�optionsr r r �
pkcs7_signh s zBackend.pkcs7_signc C s dS )z9
Returns a tuple of (key, cert, [certs])
Nr rG r r r �%load_key_and_certificates_from_pkcs12n s z-Backend.load_key_and_certificates_from_pkcs12c C s dS )z;
Returns a PKCS12KeyAndCertificates object
Nr rG r r r � load_pkcs12t s zBackend.load_pkcs12c C s dS rg r )r �namer ZcertZcasZencryption_algorithmr r r �(serialize_key_and_certificates_to_pkcs12z s z0Backend.serialize_key_and_certificates_to_pkcs12N) r r r
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