Seongho ju - Smart Energy Laboratory, Korea Electric Power Corporation Research Institute Daejeon, Korea
Moonsuk Choi - Smart Energy Laboratory, Korea Electric Power Corporation Research Institute Daejeon, Korea
Chunghyo Kim - Smart Energy Laboratory, Korea Electric Power Corporation Research Institute Daejeon, Korea
Yonghun Lim - Smart Energy Laboratory, Korea Electric Power Corporation Research Institute Daejeon, Korea

Advanced Metering Infrastructure (AMI) becomes one of the most realistic and commercial systems in power grid since smart grid has been introduced, but its security issues are not clearedyet because of both economical and technical problems. However, the infringement of privacy becomes under controversy recently,security cannot be an option in deploying AMI system any more. In this paper, we propose the security architecture for AMIsystem after defining some security requirements, and then the AMI security protocol in more details. The emulation board isimplemented in FPGA type to verify that our research is reasonable and realistic.

Authenticated Encryption, Authentication, Key Establishment, AMI, DLMS/COSEM