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

Claim 17:
18. An apparatus of a power grid system, comprising:
a sensing unit configured to sense changes in power flow of a transmission line of the power grid system;
an impedance injection unit configured to generate and inject impedance into the power line in response to the sensed changes in the power flow of the transmission line;
one or more antennas configured to communicate with components of the power grid system; and
a communication module comprising a processor coupled to the one or more antennas, wherein the processor is configured to:
receive, from a local intelligence center (LINC) of the power grid system, a nonce challenge comprising an absolute slot number (ASN) that indicates a specific time when the nonce is transmitted by the LINC;
determine an elapsed time based on a time when the nonce challenge is received and the ASN;
verify an identity of the LINC;
transmit, in response to a determination that the elapse time is less than a pre-set threshold value and the LINC is verified, a response nonce with an identifier (ID) of the apparatus and a cryptographically generated and encrypted seed-key based authentication value (AV); and
establish with the LINC a secure connection when the encrypted seed-key based AV and the ID of the apparatus are checked and validated by the LINC.