【摘要】 从电子商务的思想出发，基于信息可看成数字化商品的特性，对安全电子交易ＳＥＴ标准进行了改进，提出了一种网络信息交互系统模型，并简述了它的操作过程．该模型立足于小交互额（要求交互费用尽可能低）大交互量的实际情况．并提供交互的保密性，安全性与公平性（即当且仅当支付后才能看到信息）．更多还原

【Abstract】 Upon the idea of electronic commerce, an information transaction model based on SET protocol was presented.The operation process was also described. The highlights of the model include:a very low transaction costs for micropayments; protection of the privacy of the transaction; certified delivery mechanism which delivers information goods if and only if the customer has paid for them; and highly scalability.更多还原