基于改进NSSK协议的智能变电站密钥管理方案

发布时间：2018-06-29 14:02

本文选题：智能变电站 + 密钥管理　；参考：《电力系统自动化》2017年05期

【摘要】：密钥管理是智能变电站信息安全防护措施成功实施的关键,密钥管理方案设计的难点在于结合智能变电站通信特点与安全需求,平衡安全性和效率。文中在分析智能变电站通信特点及其报文安全需求、Needham-Schroeder密钥管理方案应用于智能变电站可行性的基础上,提出一种基于改进NSSK协议的智能变电站密钥管理方案,给出该方案中密钥生成、分发、更新、销毁的详细流程及其产生问题的解决办法,分析该方案的密钥安全性、抗伪造攻击性、抗中间人攻击性、抗重放攻击性、前向和后向安全性、运算和传输时间开销,采用BAN逻辑判断该方案的有效性。分析结果表明,所提密钥管理方案对常见的攻击有较好的抵抗性,具有较少的运算和传输时间开销,能满足智能变电站信息安全需求。
[Abstract]:Key management is the key to the successful implementation of information security protection measures in intelligent substation. The difficulty of key management scheme design is to balance security and efficiency in combination with the communication characteristics and security requirements of intelligent substation. On the basis of analyzing the characteristics of intelligent substation communication and its message security requirements, this paper presents a key management scheme for intelligent substation based on the improved NSSK protocol based on the feasibility of applying Needham-Schroeder key management scheme to intelligent substation. The detailed process of key generation, distribution, update and destruction in the scheme and the solutions to the problems are given. The key security, anti-forgery, anti-middleman attack and anti-replay attack of the scheme are analyzed. Forward and backward security, computation and transmission time overhead, and ban logic are used to judge the effectiveness of the scheme. The analysis results show that the proposed key management scheme is more resistant to common attacks and has less computation and transmission time overhead, and can meet the information security requirements of intelligent substations.
【作者单位】：哈尔滨工业大学电气工程及自动化学院;哈尔滨工业大学计算机科学与技术学院;
【基金】：国家自然科学基金资助项目(50907014)~~
【分类号】：TN918.4;TM63;TM76

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