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)
中图分类号:
张元玲, 徐中伟, 万勇兵, 夏志翔. 铁路信号安全通信协议中的MAC改进算法[J]. 计算机工程, 2012, 38(3): 246-248.
ZHANG Yuan-Ling, XU Zhong-Wei, MO Yong-Bing, JIA Zhi-Xiang. Improved MAC Algorithm in Railway Signal Safety Communication Protocol[J]. Computer Engineering, 2012, 38(3): 246-248.