The Key Wrap algorithm is the algorithm that is used to encrypt the Session Keys and Challenge Data during a Session Key Change. Devices that use DNP3 Secure Authentication have to support the Advanced Encryption Standard (AES) AES-128 algorithm. AES-128 is the algorithm that ClearSCADA uses during each Session Key Change.
A pre-shared private Update Key is used in the encryption process.
Further Information
Specify the Key Wrap algorithm used by a DNP3 master outstation: see Specify the Algorithms used to Secure Message Content.
Specify the Key Wrap algorithm used by a DNP3 slave outstation: see Specify the Algorithms used to Secure Message Content.