opcua.crypto.security_policies.SecurityPolicyBasic256 Class Reference

List of all members.

Public Member Functions
def	__init__
def	make_symmetric_key
Static Public Member Functions
def	encrypt_asymmetric
Public Attributes
	asymmetric_cryptography
	client_certificate
	Mode
	server_certificate
	symmetric_cryptography
Static Public Attributes
string	AsymmetricEncryptionURI = "http://www.w3.org/2001/04/xmlenc#rsa-oaep"
int	signature_key_size = 24
int	symmetric_key_size = 32
string	URI = "http://opcfoundation.org/UA/SecurityPolicy#Basic256"

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Detailed Description

Security Basic 256
A suite of algorithms that are for 256-Bit (32 bytes) encryption,
algorithms include:
- SymmetricSignatureAlgorithm - HmacSha1
  (http://www.w3.org/2000/09/xmldsig#hmac-sha1)
- SymmetricEncryptionAlgorithm - Aes256
  (http://www.w3.org/2001/04/xmlenc#aes256-cbc)
- AsymmetricSignatureAlgorithm - RsaSha1
  (http://www.w3.org/2000/09/xmldsig#rsa-sha1)
- AsymmetricKeyWrapAlgorithm - KwRsaOaep
  (http://www.w3.org/2001/04/xmlenc#rsa-oaep-mgf1p)
- AsymmetricEncryptionAlgorithm - RsaOaep
  (http://www.w3.org/2001/04/xmlenc#rsa-oaep)
- KeyDerivationAlgorithm - PSha1
  (http://docs.oasis-open.org/ws-sx/ws-secureconversation/200512/dk/p_sha1)
- DerivedSignatureKeyLength - 192 (24 bytes)
- MinAsymmetricKeyLength - 1024 (128 bytes)
- MaxAsymmetricKeyLength - 2048 (256 bytes)
- CertificateSignatureAlgorithm - Sha1

If a certificate or any certificate in the chain is not signed with
a hash that is Sha1 or stronger then the certificate shall be rejected.

Definition at line 377 of file security_policies.py.

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Constructor & Destructor Documentation

def opcua.crypto.security_policies.SecurityPolicyBasic256.__init__	(		self,
			server_cert,
			client_cert,
			client_pk,
			mode
	)

Definition at line 412 of file security_policies.py.

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Member Function Documentation

def opcua.crypto.security_policies.SecurityPolicyBasic256.encrypt_asymmetric	(		pubkey,
			data
	)		[static]

Definition at line 409 of file security_policies.py.

def opcua.crypto.security_policies.SecurityPolicyBasic256.make_symmetric_key	(		self,
			nonce1,
			nonce2
	)

Definition at line 431 of file security_policies.py.

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Member Data Documentation

opcua::crypto::security_policies.SecurityPolicyBasic256::asymmetric_cryptography

Definition at line 412 of file security_policies.py.

string opcua::crypto::security_policies.SecurityPolicyBasic256::AsymmetricEncryptionURI = "http://www.w3.org/2001/04/xmlenc#rsa-oaep" [static]

Definition at line 406 of file security_policies.py.

opcua::crypto::security_policies.SecurityPolicyBasic256::client_certificate

Definition at line 412 of file security_policies.py.

opcua::crypto::security_policies.SecurityPolicyBasic256::Mode

Definition at line 412 of file security_policies.py.

opcua::crypto::security_policies.SecurityPolicyBasic256::server_certificate

Definition at line 412 of file security_policies.py.

int opcua::crypto::security_policies.SecurityPolicyBasic256::signature_key_size = 24 [static]

Definition at line 404 of file security_policies.py.

opcua::crypto::security_policies.SecurityPolicyBasic256::symmetric_cryptography

Definition at line 412 of file security_policies.py.

int opcua::crypto::security_policies.SecurityPolicyBasic256::symmetric_key_size = 32 [static]

Definition at line 405 of file security_policies.py.

string opcua::crypto::security_policies.SecurityPolicyBasic256::URI = "http://opcfoundation.org/UA/SecurityPolicy#Basic256" [static]

Definition at line 403 of file security_policies.py.

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The documentation for this class was generated from the following file:

• security_policies.py