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9 result(s) for EphemeralKey

• OPC-10000-4 – OPC Unified Architecture - Part 4: Services
  3.1.5 EphemeralKey
  EphemeralKey public-private key pair generated for each execution of a key establishment process. Note 1 to entry: EphemeralKeys are necessary when using ECC based SecurityPolicies
• OPC-10000-2 – OPC Unified Architecture - Part 2: Security Model
  4.7 Security Profiles
  They include: Asymmetric Encryption algorithm Asymmetric Signature algorithm Certificate Key algorithm Certificate Signature algorithm Ephemeral Key algorithm Key Derivation algorithm Symmetric Encryption algorithm Symmetric Signature algorithm Not all are required
• OPC-10000-4 – OPC Unified Architecture - Part 4: Services
  7.15 EphemeralKeyType
  EphemeralKeyType The EphemeralKeyType parameter is used to return an ECC EphemeralKey needed to provide encrypted data back to the owner of the key. This Structure is used in the additionalHeader ... 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
• OPC-10000-4 – OPC Unified Architecture - Part 4: Services
  7.40.2.5 EccEncryptedSecret DataType
  encryption. KeyData The KeyData is not encrypted. SenderPublicKey ByteString The Public Key for the EphemeralKey created by the sender. ReceiverPublicKey ByteString The Public Key for the EphemeralKey created
• OPC-10000-6 – OPC Unified Architecture - Part 6: Mappings
  6.1 Security Handshake and Security Policies
  used with Certificates . EphemeralKeyAlgorithm The algorithm used to create asymmetric key pairs used for EphemeralKey s. SecureChannelNonceLength The length, in bytes, of the Nonces used when opening a SecureChannel . InitializationVectorLength
• OPC-10000-6 – OPC Unified Architecture - Part 6: Mappings
  6.8.1 Secure Channel Handshake
  Certificate . This list always includes the named curve used for the EphemeralKey , however, it may allow other named curves. OPC UA applications that support ECC SecurityPolicies shall support multiple Certificates ... using an ECC SecurityPolicy the ClientNonce is the Public Key for the Client's EphemeralKey encoded using the Public Key encoding for the curve. Similarly, the ServerNonce is the Public
• OPC-10000-6 – OPC Unified Architecture - Part 6: Mappings
  6.8.2 UserIdentityToken Encryption
  plans to use for the UserIdentityToken in the RequestHeader . The Server returns an EphemeralKey in the ResponseHeader that can be used for the ECDHPolicyUri specified by the Client ... valid the Server returns Bad_SecurityPolicyRejected in the ResponseHeader instead of an EphemeralKey. When the Client calls ActivateSession it creates an EccEncryptedSecret (see OPC 10000-4 ) using the most recent
• OPC-10000-6 – OPC Unified Architecture - Part 6: Mappings
  6.8.3 ECC and RSA-DH Encrypted Secret
  encryption. Clause 6.8.1 defines a mechanism that allows the sender to acquire the receiver EphemeralKey when using a Session . Using the EccEncryptedSecret in other contexts requires a different mechanism. Once ... sender has the receiver EphemeralKey, it creates its own EphemeralKey . For ECC algorithms, The ECC curve and key length for the EphemeralKey s are specified by the SecurityPolicy
• OPC-10000-12 – OPC Unified Architecture - Part 12: Discovery and Global Services
  9.6.6 StartRequestToken
  UserName or IssuedToken SecurityPolicy: ECC or RSA_DH. Not Used An EphemeralKey used to build the EccEncryptedSecret defined in OPC 10000-4 . Certificate A cryptographically random value generated