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计算机工程 ›› 2012, Vol. 38 ›› Issue (3): 246-248.doi: 10.3969/j.issn.1000-3428.2012.03.081

• 工程应用技术与实现 • 上一篇    下一篇

铁路信号安全通信协议中的MAC改进算法

张元玲，徐中伟，万勇兵，夏志翔   

  1. (同济大学电子与信息工程学院，上海 201804)
  • 收稿日期:2011-08-08 出版日期:2012-02-05 发布日期:2012-02-05
  • 作者简介:张元玲(1987－)，女，硕士研究生，主研方向：软件形式化建模与仿真；徐中伟，教授、博士生导师；万勇兵，博士研究生；夏志翔，硕士研究生

Improved MAC Algorithm in Railway Signal Safety Communication Protocol

ZHANG Yuan-ling, XU Zhong-wei, WAN Yong-bing, XIA Zhi-xiang   

  1. (School of Electronics and Information Engineering, Tongji University, Shanghai 201804, China)
  • Received:2011-08-08 Online:2012-02-05 Published:2012-02-05

PDF

905

被引次数

4

摘要： 改进铁路信号安全通信协议II(RSSP-II)中的ER层消息验证码(MAC)算法，将高级加密标准作为MAC的核心算法，使用密文分组链接方式对报文加解密，并将其运用到CTCS-3列控系统临时限速服务器测试平台的RSSP-II仿真测试中。结果表明，改进算法能够克服原算法存在的弱密钥、半弱密钥等安全隐患，具有更强的安全性与实时性。

关键词: 铁路信号安全通信协议II, 数据加密标准, 高级加密标准, 密文分组链接, 消息验证码

Abstract: To improve Message Authentication Code(MAC) algorithm of ER in Railway Signal Safety Communication Protocol II(RSSP-II), an improved MAC algorithm using Advanced Encryption Standard(AES) as core algorithm and Cipher Block Chaining(CBC) as encryption and decryption method is put forward. The proposed method will be applied to RSSP-II simulation test in TSRS test platform of CTCS-3, whose results show that the improved algorithm conquers such safety problems as weak key and semi weak key, thus having more advantage in safety and real-time compared.

Key words: Railway Signal Safety Communication Protocol II(RSSP-II), Data Encryption Standard(DES), Advanced Encryption Standard(AES), Cipher Block Chaining(CBC), Message Authentication Code(MAC)

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