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8 result(s) for Nonce

• OPC-10000-2 – OPC Unified Architecture - Part 2: Security Model
  3.1.33 Nonce
  Nonce random number that is used once typically by algorithms that generate security keys
• OPC-10000-2 – OPC Unified Architecture - Part 2: Security Model
  5.2.3 User Authentication
  then this token is validated with a challenge-response process. The Server provides a Nonce and signing algorithm as the challenge in its CreateSession response. The Client responds ... challenge by signing the Server 's Nonce and providing it as an argument in its subsequent ActivateSession call. For session-less services User Authentication can be accomplished using an AccessToken
• OPC-10000-4 – OPC Unified Architecture - Part 4: Services
  5.7.2.2 Parameters
  shall prove possession by using the private key to create a Signature using the Nonce provided by the Server in the response. If the SecurityMode is not None, the Server ... Server . A Server shall prove possession by using the private key to sign the Nonce provided by the Client in the request. For SecureChannels that use the ApplicationInstanceCertificate the Client
• OPC-10000-4 – OPC Unified Architecture - Part 4: Services
  7.40.2.2 Legacy Encrypted Token Secret Format
  encryption is applied, the structure is not used and only the secret without any Nonce is passed to the Server . Table 182 describes how to serialize UserIdentityTokens before applying encryption
• OPC-10000-4 – OPC Unified Architecture - Part 4: Services
  7.40.2.3 EncryptedSecret Format
  common header; Update the KeyDataLength with the length of the encrypted KeyData; Append the Nonce and the Secret to the encrypted KeyData; Calculate padding required on the payload and append ... SecurityPolicyUri . Each EncryptedSecret DataType describes how the key data is structured for different SecurityPolicies . Nonce ByteString This is the last serverNonce returned in the CreateSession or ActivateSession Response when
• OPC-10000-4 – OPC Unified Architecture - Part 4: Services
  7.40.2.4 RsaEncryptedSecret DataType
  used to encrypt payload. InitializationVector ByteString The initialization vector used with the EncryptingKey . Nonce ByteString A Nonce . This is the last ServerNonce returned in the CreateSession or ActivateSession Response when ... proving a UserIdentityToken passed in the ActivateSession Request . In other contexts, this is a Nonce created by the sender with a length between 32 and 128 bytes inclusive
• OPC-10000-4 – OPC Unified Architecture - Part 4: Services
  7.40.2.5 EccEncryptedSecret DataType
  sender. ReceiverPublicKey ByteString The Public Key for the EphemeralKey created by the receiver. Nonce ByteString A Nonce . This is the last ServerNonce returned in the CreateSession or ActivateSession Response when ... proving a UserIdentityToken passed in the ActivateSession Request . In other contexts, this is a Nonce created by the sender with a length between 32 and 128 bytes inclusive
• OPC-10000-14 – OPC Unified Architecture - Part 14: PubSub
  7.2.4.4.3.2 AES-CTR
  data returned from GetSecurityKeys . MessageNonce Byte [8] The first 8 bytes of the Nonce in the SecurityHeader of the NetworkMessage . For AES-CTR mode the length of the SecurityHeader Nonce