Railway Key Exchange Scheme for Improving Communication Efficiency of RSSP-II Protocol
Xinhong Hei, Wen Hua Gao, Yichuan Wang, Zhongdi Liang, Wenjiang Ji, Xianzhi Hu · 2019
RSSP-II protocol security function module designs peer-to-peer interaction to establish a secure connection. By analyzing the vulnerability of the original key distribution, for the first time, this paper introduces the idea of key agreement into the field of railway wireless communication, the implementation principle of Diffe-Hellman key agreement algorithm is briefly introduced,and the interactive process of the algorithm is simulated and reproduced. Finally, the algorithm is analyzed in detail from two aspects of time consumption and storage overhead, combining the actual communication scenario of CTCS-3 train control system, the feasibility of transplanting the algorithm to railway communication scenario is proved.