目的研究电子商务中的抗抵赖与防伪问题。方法基于离散对数的难解性,利用加密、数字签名技术设计一个安全、简单、高效的网上订货协议。结果在不增加交互次数的情况下,建立了买卖双方的信任。结论方案能防止买方抵赖和第三方攻击,实现了不可否认性和公平性,并且不需要安全信道传输。
Aim To study non-repudiation problem in the application of electronic commerce. Methods Based on the difficult of discrete logarithm, this paper proposed a protocol of safe, simple and efficient online ordering by encryption and digital signature technology. Results The buyers and sellers establish trust in the case of not to increasing the interactive number of times. Conclusion The scheme of this paper not only withstand the third-party attack and buyer denial, but also do not need secure channel.