摘要
电子商务中的一些协议大多建立在可信第三方TTP(Trusted Third Party)的基础上,挂号电子邮件协议采用的离线TTP协议在某种程度上解决了TTP的瓶颈问题。但该协议存在某些缺陷,着重分析该缺陷造成的各个参与方的不公平性以及可能存在的攻击方法,并给出对应的解决方法和改进建议。
Most protocols of dectronic commerce are made upon Trusted Third Party (TIP). To use off-llne TiP protocol for the certified E-mall protocol solves the TIP bottleneck problem in some degree. But this protocol has certain limitations. Unfairness to each side caused by these limitations and possible attack means were analyzed in detail. Meanwhile, corresponding solutions and suggestions for improvement were made.
出处
《计算机应用》
CSCD
北大核心
2006年第8期1836-1837,1847,共3页
journal of Computer Applications
关键词
可信第三方
挂号电子邮件协议
公平性
Trusted Third Party(TIP)
certified E-mall protocol
fairness