Research and Improvement on Security of GSM-R System

Due to the restrain of network structure and mobility of user terminal, there are some potential threats in GSM-R system.The purpose of this paper is to improve schemes for the existing security leaks in GSM-R system.Considering the application of GSM-R system in railway and secure demands on it,security technologies adopted by GSM-R system and security leaks are briefly depicted.Bi-directional authentication and end-end encryption,which are the improved schemes of uni-directional authentication and restrict of information encryption respectively,are described in detail in this paper.