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7 result(s) for KeyLifetime

• OPC-10000-14 – OPC Unified Architecture - Part 14: PubSub
  6.2.12.2 SecurityGroupDataType
  PubSub configuration of an OPC UA Application . If the SecurityPolicyUri or the KeyLifetime of an existing SecurityGroup are modified, all existing keys of the SecurityGroup are invalidated. The behaviour ... grouping is needed the parameter is a null or empty String array. KeyLifetime Duration The lifetime of a key in milliseconds. If the last available key expires and the Publisher
• OPC-10000-14 – OPC Unified Architecture - Part 14: PubSub
  8.3.2 GetSecurityKeys Method
  shall call the Method at a period of half the KeyLifetime . They can still request more than one key to bridge longer unavailability time of the SKS. Subscribers should ... String SecurityPolicyUri, [out] IntegerId FirstTokenId, [out] ByteString[] Keys, [out] Duration TimeToNextKey, [out] Duration KeyLifetime ); Argument Description SecurityGroupId The identifier for the SecurityGroup . It shall be unique within the Security
• OPC-10000-14 – OPC Unified Architecture - Part 14: PubSub
  8.4.3 ForceKeyRotation Method
  ForceKeyRotation Method This Method forces a key update prior to expiration of KeyLifetime , i.e. it initiates an unplanned key rotation . The future keys of this SecurityGroup remain valid. InvalidateKeys makes
• OPC-10000-14 – OPC Unified Architecture - Part 14: PubSub
  8.5.2 AddSecurityGroup Method
  when invoking this Method on the Server . Signature AddSecurityGroup ( [in] String SecurityGroupName, [in] Duration KeyLifetime, [in] String SecurityPolicyUri, [in] UInt32 MaxFutureKeyCount, [in] UInt32 MaxPastKeyCount, [out] String SecurityGroupId, [out] NodeId SecurityGroupNodeId ... Argument Description SecurityGroupName Name of the SecurityGroup to add. KeyLifetime The lifetime of a key in milliseconds. If 0 is passed in, the SKS sets the default KeyLifetime
• OPC-10000-14 – OPC Unified Architecture - Part 14: PubSub
  8.6.2 Behaviour
  sequence for push is described in 5.4.5.3 . In a period of half the KeyLifetime of a SecurityGroup , the SKS shall open a secure communication to each related PubSubKeyPushTargets and shall ... security keys are pushed, but at a minimum it shall be at the half KeyLifetime of the current key when only one future key is remaining. Since
• OPC-10000-14 – OPC Unified Architecture - Part 14: PubSub
  9.1.3.3 SetSecurityKeys
  IntegerId CurrentTokenId, [in] ByteString CurrentKey, [in] ByteString[] FutureKeys, [in] Duration TimeToNextKey, [in] Duration KeyLifetime ); Argument Description SecurityGroupId The identifier for the SecurityGroup . SecurityPolicyUri The URI for the set of algorithms ... CurrentKey . It starts at 1 and is incremented by 1 each time the KeyLifetime elapses even if no keys are requested. If the CurrentTokenId increments past the maximum value
• OPC-10000-81 – OPC Unified Architecture - Part 81: UAFX Connecting Devices and Information Model
  E.5 Interaction with an SKS
  target accepts SetSecurityKeys , the SKS will repeat pushing keys at a period of half KeyLifetime (see OPC 10000-14 ). For a push model configuration, it is recommended that the ConnectionManager