摘要
通过比较TDES算法与AES和SM4算法,分析铁路信号安全通信协议(RSSP-II)中消息验证码(MAC)算法的安全性弱点,提出采用以AES和SM4为核心的MAC改进算法,并对改进的算法进行半实物仿真实验。分析和实验结果证明:改进后的算法具有更高的实时性。
The paper analyzes the security vulnerability of Message Authentication Code（MAC） algorithm in Railway Signal Safety Communication Protocol（RSSP-II） through comparison of Triple DES（TDES） used as core algorithm in MAC algorithm with Advanced Encryption Standard（AES） and SM4 algorithm, and puts forward an improved MAC algorithm based on AES and SM4 with a semi-physical simulation test. The analysis and test results show that the improved MAC algorithm has much more advantages in both security and real-time property.
出处
《铁路通信信号工程技术》
2014年第6期4-7,17,共5页
Railway Signalling & Communication Engineering
基金
铁道部科技项目(2300-K1130001)
