File: //lib/python3/dist-packages/cryptography/hazmat/backends/__pycache__/interfaces.cpython-38.pyc
U
�e�] * � @ s� d dl mZmZmZ d dlZd dlZe�ej�G dd� de��Z e�ej�G dd� de��Z
e�ej�G dd� de��Z e�ej�G d d
� d
e��Z e�ej�G d d � d e��Z
e�ej�G d
d� de��Ze�ej�G dd� de��Ze�ej�G dd� de��Ze�ej�G dd� de��Ze�ej�G dd� de��Ze�ej�G dd� de��Ze�ej�G dd� de��Ze�ej�G dd � d e��ZdS ) � )�absolute_import�division�print_functionNc @ s6 e Zd Zejdd� �Zejdd� �Zejdd� �ZdS )�
CipherBackendc C s dS )zI
Return True if the given cipher and mode are supported.
N� ��selfZcipher�moder r �I/usr/lib/python3/dist-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__�
__module__� __qualname__�abc�abstractmethodr r r
r r r r
r s
r c @ 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_supported2 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_ctx9 s zHMACBackend.create_hmac_ctxN)r r r r r r r r r r r
r 0 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_supportedB s z$CMACBackend.cmac_algorithm_supportedc C s dS r r r r r r
�create_cmac_ctxH s zCMACBackend.create_cmac_ctxN)r r r r r r r r r r r
r @ s
r c @ s( e Zd Zejdd� �Zejdd� �ZdS )�PBKDF2HMACBackendc C s dS )zd
Return True if the hash algorithm is supported for PBKDF2 by this
backend.
Nr r r r r
�pbkdf2_hmac_supportedQ s z'PBKDF2HMACBackend.pbkdf2_hmac_supportedc C s dS )zN
Return length bytes derived from provided PBKDF2 parameters.
Nr )r r �length�saltZ
iterations� key_materialr r r
�derive_pbkdf2_hmacX s z$PBKDF2HMACBackend.derive_pbkdf2_hmacN)r r r r r r! r% r r r r
r O s
r c @ sR e Zd Zejdd� �Zejdd� �Zejdd� �Zejdd� �Zejd d
� �Z d S ) �
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_keyb 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_supportedi 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_supportedo s z,RSABackend.generate_rsa_parameters_supportedc C s dS )z4
Returns an RSAPrivateKey provider.
Nr �r Znumbersr r r
�load_rsa_private_numbersv s z#RSABackend.load_rsa_private_numbersc C s dS )z3
Returns an RSAPublicKey provider.
Nr r, r r r
�load_rsa_public_numbers| s z"RSABackend.load_rsa_public_numbersN)
r r r r r r) r* r+ r- r. r r r r
r& ` s
r& c @ s| e Zd Zejdd� �Zejdd� �Zejdd� �Zejdd� �Zejd d
� �Z ejd d � �Z
ejd
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 Z
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 r0 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 r1 r3 r4 r5 r9 r: r; r< r r r r
r/ � s
r/ c @ sn e Zd Zejdd� �Zejdd� �Zejdd� �Zejdd� �Zejd d
� �Z ejd d � �Z
ejd
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 r r r? rA rB rC rD rE rF r r r r
r= � s
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 �dataZpasswordr 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 rI 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
rG � s
rG 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 rH 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
� �Z ejd d � �Z
ejd
d� �Z ejdd� �Z ejdd� �Z
dS )� X509Backendc C s dS )zB
Load an X.509 certificate from PEM encoded data.
Nr rK r r r
�load_pem_x509_certificate s z%X509Backend.load_pem_x509_certificatec C s dS )zB
Load an X.509 certificate from DER encoded data.
Nr rK r r r
�load_der_x509_certificate s z%X509Backend.load_der_x509_certificatec C s dS )z:
Load an X.509 CSR from DER encoded data.
Nr rK r r r
�load_der_x509_csr! s z X509Backend.load_der_x509_csrc C s dS )z:
Load an X.509 CSR from PEM encoded data.
Nr rK r r r
�load_pem_x509_csr' s z X509Backend.load_pem_x509_csrc C s dS )zI
Create and sign an X.509 CSR from a CSR builder object.
Nr �r �builderZ private_keyr r r r
�create_x509_csr- s zX509Backend.create_x509_csrc C s dS )zX
Create and sign an X.509 certificate from a CertificateBuilder object.
Nr rW r r r
�create_x509_certificate3 s z#X509Backend.create_x509_certificatec C s dS )z|
Create and sign an X.509 CertificateRevocationList from a
CertificateRevocationListBuilder object.
Nr rW r r r
�create_x509_crl9 s zX509Backend.create_x509_crlc C s dS )ze
Create a RevokedCertificate object from a RevokedCertificateBuilder
object.
Nr )r rX r r r
� create_x509_revoked_certificate@ s z+X509Backend.create_x509_revoked_certificatec C s dS )zG
Compute the DER encoded bytes of an X509 Name object.
Nr )r �namer r r
�x509_name_bytesG s zX509Backend.x509_name_bytesN)r r r r r rS rT rU rV rY rZ r[ r\ r^ r r r r
rR s$
rR c @ s~ e Zd Zejdd� �Zejdd� �Zejdd� �Zejdd� �Zejd d
� �Z ejd d � �Z
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_parametersP s z DHBackend.generate_dh_parametersc C s dS )zd
Generate a DHPrivateKey instance with parameters as a DHParameters
object.
Nr r2 r r r
�generate_dh_private_keyW 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 r` 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_numberse s z!DHBackend.load_dh_private_numbersc C s dS )z:
Load a DHPublicKey from DHPublicNumbers.
Nr r, r r r
�load_dh_public_numbersk s z DHBackend.load_dh_public_numbersc C s dS )z<
Load DHParameters from DHParameterNumbers.
Nr r, r r r
�load_dh_parameter_numbersq s z#DHBackend.load_dh_parameter_numbersNc C s dS )zV
Returns whether the backend supports DH with these parameter values.
Nr )r r6 r8 r7 r r r
�dh_parameters_supportedw 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_supported} s z)DHBackend.dh_x942_serialization_supported)N)
r r r r r rb rc rd re rf rg rh ri r r r r
r_ N s
r_ c @ s e Zd Zejdd� �ZdS )�
ScryptBackendc C s dS )zG
Return bytes derived from provided Scrypt parameters.
Nr )r r$ r# r" �n�rr6 r r r
�
derive_scrypt� s zScryptBackend.derive_scryptN)r r r r r rm r r r r
rj � s rj )Z
__future__r r r r ZsixZ
add_metaclass�ABCMeta�objectr r r r r r& r/ r= rG rN rR r_ rj r r r r
�<module> s8
"
3
/
:
6