| With the continuous development of information technology in enterprises,the data interaction between enterprise terminals and enterprise information network system is becoming more and more frequent.How to achieve the access service of highly concurrent terminals and intelligent management of access terminals safely and efficiently has become the problem that must be solved in the process of enterprise informatization construction.The security access management of terminals needs to be considered from three aspects: the security of the communication channel,the processing capability of the security access system and the efficient management of terminals.The security of the communication channel can ensure the confidentiality and integrity of the data during transmission.The security access system with highly concurrent processing capability can guarantee the fast response to the terminal service request.The efficient management system of terminal access can ensure the full use of the network resource and the intelligent management level of the terminal access system.On the basis of studying the access status and security risk of two typical access business in electric power industry--distribution automation and power supply voltage acquisition,this paper combined with the existing network high concurrent design solution,on two aspects,namely network information and communication security,studies and solves the problems of high concurrent and information security in the terminal security access process,and complete the design of terminal security access management system based on libevent framework.The system utilizes the libevent+ thread pool technology to process the terminal service request in time and effectively.The main module,consult module,ciphertext communication module and management system interface module are realized to ensure the safety of communication channel between terminals and access system,also the intractability and integrity of the data in the transmission process.Finally,the experiment shows that the system has the characteristics of high concurrency and low delay.The research and implementation of this system has the great practical significance for the security access construction of the enterprise. |