保护隐私的数字产品网上交易方案  

A New Scheme for Privacy Protection in the E-Commerce of Digital Goods

作　　者：毛剑[1] 杨波[2] 王育民[1] 

机构地区：[1]西安电子科技大学ISN实验室,陕西西安710071 [2]北京交通大学计算机与信息技术学院,北京100044

出　　处：《电子学报》2005年第6期1053-1055,共3页Acta Electronica Sinica

基　　金：国家自然科学基金(No.60073052)

摘　　要：电子商务中需要尽可能地保护用户隐私,而密码技术则是这一需求的重要保障.在安全的1/2不经意传输存在这一假设下,本文提出了一个安全且具隐私保护的数字产品网上交易方案.方案很好的考虑了实际交易中可能出现的情况,并针对可能出现的种种欺诈行为(如:商家以次充好,买家一次消费多次交易等问题)给予了有效的解决.同时结合匿名支付和匿名通信技术保证了用户交易的匿名性.It is well known that customers' privacy in electronic commerce should be well p rotected. The solutions may come not only from the ethics education and legislation,but a l so from cryptographic technology.A scheme for privacy protection in the E-comme rce is proposed which is based on the existence of secure 1/2 oblivious transfer .It takes oblivious polynomial evaluation as its technical means to realize priv acy protection for online customers and prevent the merchant from cheating effic iently; In addition,the scheme also ensure customers dealing with merchants ano nymously.

关 键 词：不经意传输 不经意多项式估值 数字签名 匿名支付 

分 类 号：TN918.1[电子电信—通信与信息系统]