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

Claim 0:
1. A method for secure communication between components enabling monitoring and control of a power grid system comprising:
receiving, by each flexible alternating current transmission system (FACTS) based component comprising at least an impedance injection modules (IIM) from a local intelligence center (LINC) of the power grid system, an encrypted nonce challenge including an absolute slot number (ASN) that indicates a specific time when the nonce is transmitted by the LINC and an identifier (ID) of the LINC, encrypted based on a seed-key of the IIM;
determining, by the IIM, an elapsed time based on a time when the nonce challenge is received and the ASN;
verifying, by the IIM, an identity of the LINC;
sending, by the IIM in response to determining that the elapse time is less than a pre-set threshold value and the LINC is verified, a response nonce with an ID of the IIM and an encrypted seed-key based authentication value (AV); and
establishing, by the IIM with the LINC, a secure connection when the encrypted seed-key based AV and the ID of the IIM are checked and validated by the LINC.