Integration of Public Key Cryptography in ANSI C12.22 for Advanced Metering Infrastructure
Conference
Shees, A, Taher, MA, Shakib, KH et al. (2026). Integration of Public Key Cryptography in ANSI C12.22 for Advanced Metering Infrastructure
. 506-511. 10.1109/GreenTech68285.2026.11471558
Shees, A, Taher, MA, Shakib, KH et al. (2026). Integration of Public Key Cryptography in ANSI C12.22 for Advanced Metering Infrastructure
. 506-511. 10.1109/GreenTech68285.2026.11471558
Advanced Metering Infrastructure (AMI) requires secure and scalable communication between meters and utility servers. The ANSI C12.22 standard defines an application layer protocol for transporting metering data, but its reliance on pre-shared symmetric keys limits scalability and key management flexibility. This paper presents the integration of Elliptic Curve Diffie-Hellman Ephemeral (ECDHE) based key exchange and Elliptic Curve Digital Signature Algorithm (ECDSA) based authentication with Hash based Message Authentication Code (HMAC) verification into the ANSI C12.22 framework. The enhancement replaces static pre-shared key distribution with a dynamic handshake that generates ephemeral session keys on demand and provides message integrity through HMAC verification. A detailed performance analysis was conducted to compare the ANSI C12.22 standard implementation and the proposed integrated model across latency, throughput, and security metrics. Experimental results show that while the proposed system introduces a one-time security handshake latency of approximately 0.86 s, subsequent data transactions remain efficient with Round-Trip Times (RTT) tightly bounded between 109 ms and 163 ms. The findings show that the proposed approach significantly improves confidentiality, integrity, and authentication in AMI without introducing substantial communication or processing overhead.
