Patent ID: 11917058
Assignee: SMART WIRES INC.
Field: Digital communication (Electrical engineering)
Classification: CPC H  Y | IPC G  H

Claim 8:
9. A method for secure communication between components at nodes of a power grid system, the method comprising:
sending, by a local intelligence center (LINC) to a flexible alternating current transmission system (FACTS) based device at a node comprising at least an impedance injection module (IIM) of the power grid system, a nonce challenge comprising an absolute slot number (ASN) that indicates a specific time when the nonce is transmitted and an 1D-identifier (ID) of the LINC encrypted based on a seed-key of the IIM;
receiving, by the LINC from the IIM, a response nonce with an ID and a cryptographically generated and encrypted seed-key based authentication value (AV);
verifying, by the LINC, the ID and the encrypted seed-key based AV of the IIM; and
establishing, between the LINC and the IIM, a secure connection.