一个具有隐私保护的数字产品匿名交易方案

An anonymous scheme for privacy protection in the E-commerce of digital goods

密码及其相关技术是在电子商务中保护用户隐私的重要手段之一 .基于数字签名技术 ,加密技术 ,以及匿名电子现金技术 ,提出了一种改进的数字产品网上交易方案 .改进后的方案使用匿名的电子现金确保了用户在交易中的匿名性 ,进一步有效地保护了合法用户的隐私 .此外 ,方案利用数字签名技术 ,以签名作为商家承诺 ,有效地解决了商家在交易中的恶意欺诈 ,如“以次充好 ,偷梁换柱”等问题 .

It is well known that customers privacy in electronic commerce should be well protected. The solutions may come not only from the ethics education and legislation, but also from cryptographic technologies. In this paper, we propose an improved scheme for privacy protection in the E commerce, which takes digital signature and anonymous payment as its technical means to realize privacy protection for online customers and prevent the merchants from cheating efficiently. In addition, it also ensures that customers deal with merchants anonymously.