Study Of Security Problems And Countermeasures In Electronic Commerce

The high-speed development of Internet not only offers convenience to communication, but also changes classic business and economic paradigms. Electronic Commerce based on . Internet has become a new mode for people to pursue commerce. The prospect of Electronic Commerce is becoming more and more attracting. But at the same time, the security problem is the main cause that restricts its development. The Electronic Commerce security is the most important problems for an Electronic Commerce system to function successfully. How to establish a secure and convenient application environment of Electronic Commerce has become a current topic. In the secure application environment electronic transaction should have the same security and reliability as the conventional transaction.Firstly, this paper analyzes objectively the problem and the task we are facing with to develop E—C, discusses the Electronic Commerce security systematically. After that, risks of system security are analyzed; Aiming at the security Problem, the paper made some simply introduction of security technologies in Electronic Commerce, including Encryption theory(Private key Public key) Hash function digital signature, etc. We can never get the security of the information unless combine the human and technology together. After deeply analyzing and probing the One-Time Password authentication technology, aiming for the deficiency of the extant systems of One-Time Password authentication, this thesis proposes an Improved One-Time Password authentication mechanism, which can efficiently resist the small-number attack and replay attack. What's more, during implementation the improved authentication mechanism does not require the user in the client end to install any software or to modify any configuration; This thesis applies respectively the improved one-Time Password authentication mechanism and the status authentication mechanism based on the discrete logarithm problem in the points on elliptic curves over finite fields to B2C and B2B...