基于智能电网的安全密钥共享算法  

Secure key-sharing algorithm based on smart grid

作　　者：顾伟[1] 沈剑 任勇军[1] GU Wei;SHEN Jian;REN Yongjun(School of Computer and Software,Nanjing University of Information Science and Technology,Nanjing 210044,China;Graduate School,Nanjing University of Information Science and Technology,Nanjing 210044,China)

机构地区：[1]南京信息工程大学计算机与软件学院,江苏南京210044 [2]南京信息工程大学研究生院,江苏南京210044

出　　处：《网络与信息安全学报》2021年第4期141-146,共6页Chinese Journal of Network and Information Security

基　　金：国家自然科学基金优秀青年基金(61922045);国家自然科学基金(62072249)。

摘　　要：针对多数密钥建立协议存在中间参数泄露和私钥泄露问题,提出新的公钥共享的对称加密(PKS-SE)算法,进而维护智能电表与服务商间通信的安全。PKS-SE算法以双线性映射、超奇异曲线为基础,构建智能电表与服务商通信的通信密钥,避免密钥托管问题。同时,PKS-SE算法减少了认证过程中交互的消息数,进而控制了PKS-SE算法的通信成本和运算成本。仿真结果表明,所提PKS-SE算法有效地实现了公钥共享。Most of establishment-key protocols suffer from both session-specific temporary information attack and private key leakage issue.Therefore,a novel public key sharing-based symmetric encryption algorithm(PKS-SE)was proposed,in order to maintain the security of communication between smart meter and service providers.Based on bilinear mapping and super-singular curve,PKS-SE algorithm constructed the communication key between intelligent electricity meter and service provider,in order to avoid the key escrow problem.At the same time,PKS-SE algorithm reduced the number of required messages during the mutual authentication to only two messages,thus controlling the communication cost and operation cost of PKS-SE algorithm.Simulation results show that the proposed PKS-SE algorithm can effectively realize public key-sharing.

关 键 词：智能电网安全 密钥建立 密钥托管 通信成本 运算成本 

分 类 号：TP183[自动化与计算机技术—控制理论与控制工程]