The Research And Realization Of Electronic Auction Protocol

Content: Electronic commerce protocols are the technical foundation to carry out the electronic commerce . The design and the security of electronic commerce protocols are keys of their theories and techniques. Electronic commerce protocols are orienting application layer and their main functions in unsafe and unavailable network, ensures communication message to be integrity, anonymity, atomicity and non-repudiation. In this thesis, we studied mainly the keys-techniques of the electronic auction protocols of multi- electronic commerce protocols.Electronic auction is one of the most important parts of Electronic commerce , with the development of the Internet ,more and more people begin to use Internet for communication and business. Electronic auction is a mode of spot transactions, realized on the network with important practical significance . Tt has been researched intensively in recent years. The contributions of this thesis are as follows:Firstly .the key-techniques of the electronic auction protocols have been systematically researched based on the study-fruits and applications of the electronic auction.Secondly, a secure, efficicent and secret electronic auction is presented based on secret sharing of Chinese remainder theorem in this thesis. In order to ensure the winner paying money in the end, the electronic auction uses electronic cash as a part of the bid; and comparing with the previous electronic auction based on Shamir secret sharing, its efficiency is distinctly improved in computation and communication.Thirdly, there is a price bottle-neck problem in all the seal-bid at present ,namely two or more bidders choose the highest price in a round at the same time, some schemes only raise the price again , and all the bidders continue action , because of the price bottle-neck , efficiency of the auctions is affected by the price bottle-neck very much. In this thesis, we present a new secure efficient electronic auction using knapsack theory and secret sharing schemeFinally. Online-auction mode has became one of the most important parts of Electronic commerce, because it embody fully the characteristics of alternation, bestraddle-time, bestraddle-zone of the Internet. Online-auction can help the bidders to look for the buyers in larger scope; it can help the buyers to look for the commodity that they want to . In this thesis, we designed and developed a based-WEB online-electronic auction system..