On Analysis Of The Security Of Electronic Commerce

Accompanying with the rapid development of Internet, more and more network applications have come to our everyday life. Electronic Commerce, with its advantages of high efficiency and low cost, is receiving more and more recognitions and confidences from the society. While the security during the transmission of the information stream, financing stream and material stream is being the focus of attention and research. The information stream can be protected by the traditional cryptogram science and general network security technology. But how to transport the financing stream, composing by credit card number and password is a vital problem. Achieving secure electronic payment is the key of electronic commerce development.By concluding threaten of the electronic commerce faced with and the secure requirement, this subject discussed the two payment mode, compared with each other, and analyzed the cryptogram theories and security technology they based on. The advantages and disadvantages of the two modes were pointed out. How they have been applied in our country was also been studied. Based on the utility of SET payment center, a new electronic paying system is designed. The new system substitutes the encrypt algorithm to a more safe one, and changes the data structure so as to support the debit card. Thus the paying process is rebuilt. The paper completes the construct of the new system, and every part of involved the process was designed. Then we analyze the security and practicability of the new system. Besides, an added function of payment center was developed, which could maintain all the stores' reputation. A reputation model based on the users' satisfactory is put forward. Then we emulate the model by Mat lab and discuss its rationality and deficiency.