智能电表系统中的双向物理层辅助认证技术  

Bi-Directional Physical Layer-Assist Authentication in Smart-Meter System

作　　者：马婷[1] 任梦吟[1] 文红[1] 李腾飞[1] 

机构地区：[1]电子科技大学通信抗干扰技术国家级重点实验室,四川成都611731

出　　处：《信息安全与通信保密》2014年第11期85-87,共3页Information Security and Communications Privacy

基　　金：自然科学基金项目(批准号:61032003;61271172);高等学校博士学科点专项科研基金(编号:20120185110030;20130185130002);四川省国际合作研究项目(编号:2013HH0005)联合资助

摘　　要：智能电表之间通常需要进行连续双向身份认证,而现有的基于加密的上层身份认证技术不适用于资源受限的智能电表系统。已有的物理层辅助身份认证机制仅能实现接收端到源的单向认证,不能满足智能电表之间双向通信的认证需求。文中提出一种适用于智能电表系统中的双向物理层辅助认证方案,该方案在完成基于PKI的初始消息认证后,在后续认证中使用物理层认证而无须依赖上层认证。基于IEEE802.11.4g标准的仿真结果表明,该方案能够实现快速双向身份认证,更适用于智能电表系统。Continuous bi-directional authentication is usually required between the smart meters, and however the existing upper- layer authentication technology based on encryption is not applicable to the resource-limited smart meters. Furthermore, the current physical layer assist authentication schemes could merely realize the one-way authentication from receiving terminal to source and not satisfy the authentication of bi-directional communication. This paper proposes a bi-directional physical layer-assist authentication scheme between smart meters. After initial message authentication based on PKI, physical-layer authentication is adopted in the follow -up authentication instead of relying on upper-layer authentication. Simulation results under IEEE 802.15.4g standard illustrate that this proposed scheme can achieve fast bi-directional authentication and is more applicable for smart meter system.

关 键 词：智能电表 物理层 双向认证 

分 类 号：TM933.4[电气工程—电力电子与电力传动]