Research On Communication Encryption Module Of Power Wireless Private Network

The LTE-G 230 MHz power wireless private network is an important part of the power terminal communication access network,and which mainly completes the collection of power distribution and utilization service,and improves the service quality of the entire power system.With the rapid construction of China's strong smart grid,the types and quantity of power services have increased dramatically,and the distribution of service terminals is uneven.In 2017,the Ministry of Information and Communications pointed out that “increase the promotion of wireless private network construction”,therefore,power wireless private network technology has become more and more important in the process of information collection and transmission.However,compared with the public network,it has different bearer services,and has higher requirements of security and reliability.In addition,services security is of great significance for ensuring the stable operation and social stability of the entire power system,thus ensuring data security has become very important for the construction of wireless private networks.In view of the current problems,firstly,this paper studies the security and reliability requirements of terminal services,and studies the security of LTE-G 230 MHz power wireless private network,the risk level,consequences and hazards of the network point are given.Then it demonstrates the advantages and disadvantages of the current typical wireless communication security protection methods,in order to select the encryption algorithm under limited conditions,according to the algorithm's own attributes,the article uses the AHP to qualitatively and quantitatively evaluate the comprehensive performance of the current main encryption algorithm,and establishes the protection based on SM1,SM2 and other national secret algorithms.Finally,a security protection scheme(referred to as communication encryption module)of LTE-G 230 MHz power wireless private network communication terminal based on national secret algorithm is proposed.The paper combines the characteristics of LTE-G 230 MHz power wireless private network and the power service requirements,and designs the communication encryption module in detail.Firstly,the overall design idea is presented.Then the key negotiation and data encryption and others are designed,and finally the principle test of the program is carried out in the laboratory to verify the feasibility of the scheme.