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5 result(s) for EphemeralKeys
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OPC-10000-4 – OPC Unified Architecture - Part 4: Services7.15 EphemeralKeyTypeAdditionalParametersType defined in 7.1 . See OPC 10000-6 for a discussion of ECC EphemeralKeys . The EphemeralKey is created based on an ECC named curve specified by a SecurityPolicy . The SecurityPolicy
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OPC-10000-4 – OPC Unified Architecture - Part 4: Services7.40.2.5 EccEncryptedSecret DataTypeEccEncryptedSecret uses ECC or RSA Diffie-Hellman (RSA-DH) Finite Field Group EphemeralKeys to create the symmetric key used to encrypt the Secret. The handshake required to create ... EphemeralKeys is described in OPC 10000-6 . Table 186 - EccEncryptedSecret Layout Name Type Description TypeId NodeId The NodeId of the EccEncryptedSecret DataType Node . EncodingMask Byte See Table 183 Length UInt32
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OPC-10000-6 – OPC Unified Architecture - Part 6: Mappings6.8.1 Secure Channel Handshakepairs are used each time a SecureChannel is negotiated and they are called EphemeralKeys . ECC public-private key pairs are always based on a specific elliptic curve function which ... specifies exactly one named curve which is used for the EphemeralKeys . Each ECC Certificate is also based on a named curve. Each SecurityPolicy specifies a list of named curves which
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OPC-10000-6 – OPC Unified Architecture - Part 6: Mappingscurrent Endpoint . With ECC, encryption requires that the Client and Server exchange EphemeralKeys and there is no mechanism in the current CreateSession / ActivateSession handshake to do this. For that reason ... EphemeralKeys are returned in the AdditionalHeader field of the ResponseHeader of the CreateSession and ActivateSession responses. An overview of the handshake is shown in Figure 16 . Figure 16 - ECC CreateSession/ActivateSession
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OPC-10000-6 – OPC Unified Architecture - Part 6: MappingsSecurityPolicies . Applying security with ECC or RSA-DH requires two EphemeralKeys generated by the sender and the receiver which are used to create the symmetric keys for encryption. Clause