Research On Security Based On E-commerece Platform And The Design Of Firewall System

Electronic commerce is a famous application on the network today. It becomes more and more important in the international trading. Security is the key problem in the electronic commerce.hi this paper, we firstly analyze some security problems and the security methods in electronic commerce, and then we present a secure data model in electronic commerce. In this model we made the security measure combined organically. Consequently the whole security in electronic commerce system can be improved.The firewall technology is a key technology to solve the security problems in electronic commerce. In this paper, we give a deeply study in the firewall technology and present a reference model of firewall technology based on witch; we develop a firewall prototype system. The system makes a network security access mechanism suitable for user's security policy, including three parts: package filtering router: offering security access control in network layer; proxy server: used for security access on application layer; authentication server: used for authentication of user's identity. In this system the packet filtering rules are controlled intelligently by combining the intelligent mechanism with the package filtering mechanism; to the proxy server, we develop a FTP proxy server decrypting witch with petri net model; lastly, OTP authentication are applied in authentication server.