Research On Information Security Of MES System Based On Web Environment

The thesis combined the development experience of the Tian Gong MES software of Wuhan University of Technology,Mechanical and electronic engineering college,this thesis analyzed the information security risk and probable other external threat of the MES system.It emphasized on preventing the system from invading and intrusion detection.The thesis presented the security operation target of MES system in the web environment,and decomposed the security target into some measureable sub-targets. The security architecture was designed to keep the MES system from secure.It was specially discussed how to encrypt the valuable data and to prevent the intrusion,and taking advantage of access control mechanism,firewall mechanism and invasion detecting mechanism in order to insure the MES system operate safely and efficiently. Thereby it increased security and ability to counter-attack,enhanced the usability and reliability of MES system.The security strategy about operating and maintaining on MES system in the web environment was formulated in accordance with the description of international information security standard and the strategy of information security system.In this thesis the key technology of a secure architecture was also presented, including VPN,Web Service and encryption algorithm for MES software security.The encryption algorithms were evaluated.To make out the feasibility and security of system security architecture,some functions of the architecture were implemented.Examples were given to show the implementation of MES system total security in the web environment,and present achievements of data encryption and decryption algorithm,the implementation of intrusion detection system function and authentication based web service in the MES system.In the end,the work was summarized,and the future direction of research projects was presented.