CPC H02J 13/00016 (2020.01) [H02J 13/00001 (2020.01); H02J 13/00028 (2020.01); H02J 13/00034 (2020.01); H04L 9/0643 (2013.01); H04L 9/0819 (2013.01); H04L 12/10 (2013.01); H04L 45/745 (2013.01); H04L 63/0428 (2013.01); H04L 63/062 (2013.01)] | 15 Claims |
1. An intelligent electronic device (IED), comprising:
a memory; and
a processor operatively coupled to the memory, wherein the processor is configured to execute instructions stored on the memory to cause operations comprising:
receive from a key server of a communication network, a secure association key (SAK) with a confidentiality offset associated with an application protocol;
generate a frame comprising a port identifier associated with the application protocol of a network stack of the communication network of a power system to allow a receiving device on the communication network to identify the application protocol of the frame using the port identifier;
wherein the frame includes an unencrypted portion and an encrypted portion based on the confidentiality offset; and
sending the frame to the receiving device.
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