摘要 |
A method and an apparatus provide dedicated group key distribution in systems employing generic object oriented substation events (GOOSE). The method includes defining a group configuration for the GOOSE system via a plurality of field devices, verifying possession by each field device in the group of an asymmetric key pair, distributing a group key individually to each field group member device by a substation controller via a secure interaction between the substation controller and the group member device, and updating the group key after the group configuration has changed.
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