一种新型的匿名公平电子商务协议  

New anonymous fair-exchange e-commerce protocol

作　　者：罗东俊[1,2] 

机构地区：[1]广东商学院信息学院,广州510320 [2]华南理工大学计算机科学与工程学院,广州510641

出　　处：《计算机应用研究》2010年第10期3872-3875,3879,共5页Application Research of Computers

基　　金：广东省自然科学基金资助项目(06023960)

摘　　要：针对电子商务中客户、商家和第三方的信任问题,在Brands离线电子货币方案基础上,借鉴盲解密思想,设计了一种简单、有效的匿名公平电子商务协议。协议引入了一个离线半可信第三方,以保证交易双方公平交换。但交易过程中,STTP得不到任何对交易双方有价值的信息。该协议通过客户和商家签发CEM证书,将订单、商品和支付证据紧密绑定在一起,使交易双方不可否认。分析和实验表明,该协议满足安全性、客户匿名性、可追究性、公平性和原子性,并具有很高效率,对大数据商品的交易也具有很好的适用性。In allusion to trust problem in electronic commerce among the customer,the merchant and the third party,making use of the ideal of blind decryption,this paper designed a simple and effective anonymous fair-exchange e-commerce protocol based on Brands off-line electronic cash scheme. In the protocol,involved an off-line semi-trusted third party （ STTP for short） to provide a fair commerce environment. However,the STTP wasn’t able to get any valuable information of both the customer and the merchant. The customer and the merchant signed their CEM certificates to tightly bind the order,the commodity and the payment-evidence together. This made them not deny. The analyses and experiment show the protocol satisfies the properties of security,customer-anonymity,accountability,fair-exchange and atomicity,and has fine performance to be suitable for the transaction of large-size items.

关 键 词：电子商务 电子货币 公平交换 匿名 安全 

分 类 号：TP309[自动化与计算机技术—计算机系统结构]