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This module has no docstring.
cipher_supported(self, cipher, mode)
Return True if the given cipher and mode are supported.
cmac_algorithm_supported(self, algorithm)
Returns True if the block cipher is supported for CMAC by this backend
create_cmac_ctx(self, algorithm)
Create a context for calculating a message authentication code.
create_hash_ctx(self, algorithm)
Create a HashContext for calculating a message digest.
create_hmac_ctx(self, key, algorithm)
Create a context for calculating a message authentication code.
create_symmetric_decryption_ctx(self, cipher, mode)
Get a CipherContext that can be used for decryption.
create_symmetric_encryption_ctx(self, cipher, mode)
Get a CipherContext that can be used for encryption.
derive_elliptic_curve_private_key(self, private_value, curve)
Compute the private key given the private value and curve.
derive_pbkdf2_hmac(self, algorithm, length, salt, iterations, key_material)
Return length bytes derived from provided PBKDF2 parameters.
derive_scrypt(self, key_material, salt, length, n, r, p)
Return bytes derived from provided Scrypt parameters.
dh_parameters_supported(self, p, g, q=None)
Returns whether the backend supports DH with these parameter values.
dh_x942_serialization_supported(self)
Returns True if the backend supports the serialization of DH objects
with subgroup order (q).
dsa_hash_supported(self, algorithm)
Return True if the hash algorithm is supported by the backend for DSA.
dsa_parameters_supported(self, p, q, g)
Return True if the parameters are supported by the backend for DSA.
elliptic_curve_exchange_algorithm_supported(self, algorithm, curve)
Returns whether the exchange algorithm is supported by this backend.
elliptic_curve_signature_algorithm_supported(self, signature_algorithm, curve)
Returns True if the backend supports the named elliptic curve with the
specified signature algorithm.
elliptic_curve_supported(self, curve)
Returns True if the backend supports the named elliptic curve.
generate_dh_parameters(self, generator, key_size)
Generate a DHParameters instance with a modulus of key_size bits.
Using the given generator. Often 2 or 5.
generate_dh_private_key(self, parameters)
Generate a DHPrivateKey instance with parameters as a DHParameters
object.
generate_dh_private_key_and_parameters(self, generator, key_size)
Generate a DHPrivateKey instance using key size only.
Using the given generator. Often 2 or 5.
generate_dsa_parameters(self, key_size)
Generate a DSAParameters instance with a modulus of key_size bits.
generate_dsa_private_key(self, parameters)
Generate a DSAPrivateKey instance with parameters as a DSAParameters
object.
generate_dsa_private_key_and_parameters(self, key_size)
Generate a DSAPrivateKey instance using key size only.
generate_elliptic_curve_private_key(self, curve)
Return an object conforming to the EllipticCurvePrivateKey interface.
generate_rsa_parameters_supported(self, public_exponent, key_size)
Returns True if the backend supports the given parameters for key
generation.
generate_rsa_private_key(self, public_exponent, key_size)
Generate an RSAPrivateKey instance with public_exponent and a modulus
of key_size bits.
hash_supported(self, algorithm)
Return True if the hash algorithm is supported by this backend.
hmac_supported(self, algorithm)
Return True if the hash algorithm is supported for HMAC by this
backend.
load_der_parameters(self, data)
Load encryption parameters from DER encoded data.
load_der_pkcs7_certificates(self, data)
Returns a list of x509.Certificate
load_der_private_key(self, data, password)
Loads a private key from DER encoded data. Uses the provided password
if the data is encrypted.
load_der_public_key(self, data)
Loads a public key from DER encoded data.
load_dh_parameter_numbers(self, numbers)
Load DHParameters from DHParameterNumbers.
load_dh_private_numbers(self, numbers)
Load a DHPrivateKey from DHPrivateNumbers
load_dh_public_numbers(self, numbers)
Load a DHPublicKey from DHPublicNumbers.
load_dsa_parameter_numbers(self, numbers)
Returns a DSAParameters provider.
load_dsa_private_numbers(self, numbers)
Returns a DSAPrivateKey provider.
load_dsa_public_numbers(self, numbers)
Returns a DSAPublicKey provider.
load_elliptic_curve_private_numbers(self, numbers)
Return an EllipticCurvePrivateKey provider using the given numbers.
load_elliptic_curve_public_numbers(self, numbers)
Return an EllipticCurvePublicKey provider using the given numbers.
load_key_and_certificates_from_pkcs12(self, data, password)
Returns a tuple of (key, cert, [certs])
load_pem_parameters(self, data)
Load encryption parameters from PEM encoded data.
load_pem_pkcs7_certificates(self, data)
Returns a list of x509.Certificate
load_pem_private_key(self, data, password)
Loads a private key from PEM encoded data, using the provided password
if the data is encrypted.
load_pem_public_key(self, data)
Loads a public key from PEM encoded data.
load_pkcs12(self, data, password)
Returns a PKCS12KeyAndCertificates object
load_rsa_private_numbers(self, numbers)
Returns an RSAPrivateKey provider.
load_rsa_public_numbers(self, numbers)
Returns an RSAPublicKey provider.
pbkdf2_hmac_supported(self, algorithm)
Return True if the hash algorithm is supported for PBKDF2 by this
backend.
pkcs7_sign(self, builder, encoding, options)
Returns bytes
rsa_padding_supported(self, padding)
Returns True if the backend supports the given padding options.
scrypt_supported(self)
Return True if Scrypt is supported.
serialize_key_and_certificates_to_pkcs12(self, name, key, cert, cas, encryption_algorithm)
Returns bytes
cmac_algorithm_supported(self, algorithm)
Returns True if the block cipher is supported for CMAC by this backend
create_cmac_ctx(self, algorithm)
Create a context for calculating a message authentication code.
cipher_supported(self, cipher, mode)
Return True if the given cipher and mode are supported.
create_symmetric_decryption_ctx(self, cipher, mode)
Get a CipherContext that can be used for decryption.
create_symmetric_encryption_ctx(self, cipher, mode)
Get a CipherContext that can be used for encryption.
load_der_parameters(self, data)
Load encryption parameters from DER encoded data.
load_der_private_key(self, data, password)
Loads a private key from DER encoded data. Uses the provided password
if the data is encrypted.
load_der_public_key(self, data)
Loads a public key from DER encoded data.
dh_parameters_supported(self, p, g, q=None)
Returns whether the backend supports DH with these parameter values.
dh_x942_serialization_supported(self)
Returns True if the backend supports the serialization of DH objects
with subgroup order (q).
generate_dh_parameters(self, generator, key_size)
Generate a DHParameters instance with a modulus of key_size bits.
Using the given generator. Often 2 or 5.
generate_dh_private_key(self, parameters)
Generate a DHPrivateKey instance with parameters as a DHParameters
object.
generate_dh_private_key_and_parameters(self, generator, key_size)
Generate a DHPrivateKey instance using key size only.
Using the given generator. Often 2 or 5.
load_dh_parameter_numbers(self, numbers)
Load DHParameters from DHParameterNumbers.
load_dh_private_numbers(self, numbers)
Load a DHPrivateKey from DHPrivateNumbers
load_dh_public_numbers(self, numbers)
Load a DHPublicKey from DHPublicNumbers.
dsa_hash_supported(self, algorithm)
Return True if the hash algorithm is supported by the backend for DSA.
dsa_parameters_supported(self, p, q, g)
Return True if the parameters are supported by the backend for DSA.
generate_dsa_parameters(self, key_size)
Generate a DSAParameters instance with a modulus of key_size bits.
generate_dsa_private_key(self, parameters)
Generate a DSAPrivateKey instance with parameters as a DSAParameters
object.
generate_dsa_private_key_and_parameters(self, key_size)
Generate a DSAPrivateKey instance using key size only.
load_dsa_parameter_numbers(self, numbers)
Returns a DSAParameters provider.
load_dsa_private_numbers(self, numbers)
Returns a DSAPrivateKey provider.
load_dsa_public_numbers(self, numbers)
Returns a DSAPublicKey provider.
derive_elliptic_curve_private_key(self, private_value, curve)
Compute the private key given the private value and curve.
elliptic_curve_exchange_algorithm_supported(self, algorithm, curve)
Returns whether the exchange algorithm is supported by this backend.
elliptic_curve_signature_algorithm_supported(self, signature_algorithm, curve)
Returns True if the backend supports the named elliptic curve with the
specified signature algorithm.
elliptic_curve_supported(self, curve)
Returns True if the backend supports the named elliptic curve.
generate_elliptic_curve_private_key(self, curve)
Return an object conforming to the EllipticCurvePrivateKey interface.
load_elliptic_curve_private_numbers(self, numbers)
Return an EllipticCurvePrivateKey provider using the given numbers.
load_elliptic_curve_public_numbers(self, numbers)
Return an EllipticCurvePublicKey provider using the given numbers.
create_hmac_ctx(self, key, algorithm)
Create a context for calculating a message authentication code.
hmac_supported(self, algorithm)
Return True if the hash algorithm is supported for HMAC by this
backend.
create_hash_ctx(self, algorithm)
Create a HashContext for calculating a message digest.
hash_supported(self, algorithm)
Return True if the hash algorithm is supported by this backend.
derive_pbkdf2_hmac(self, algorithm, length, salt, iterations, key_material)
Return length bytes derived from provided PBKDF2 parameters.
pbkdf2_hmac_supported(self, algorithm)
Return True if the hash algorithm is supported for PBKDF2 by this
backend.
load_pem_parameters(self, data)
Load encryption parameters from PEM encoded data.
load_pem_private_key(self, data, password)
Loads a private key from PEM encoded data, using the provided password
if the data is encrypted.
load_pem_public_key(self, data)
Loads a public key from PEM encoded data.
generate_rsa_parameters_supported(self, public_exponent, key_size)
Returns True if the backend supports the given parameters for key
generation.
generate_rsa_private_key(self, public_exponent, key_size)
Generate an RSAPrivateKey instance with public_exponent and a modulus
of key_size bits.
load_rsa_private_numbers(self, numbers)
Returns an RSAPrivateKey provider.
load_rsa_public_numbers(self, numbers)
Returns an RSAPublicKey provider.
rsa_padding_supported(self, padding)
Returns True if the backend supports the given padding options.
derive_scrypt(self, key_material, salt, length, n, r, p)
Return bytes derived from provided Scrypt parameters.
scrypt_supported(self)
Return True if Scrypt is supported.