摘要
公平性是电子商务协议的基本安全要求之一 CEMBS是一种重要的用于构造公平交换协议的密码部件 分析了现有的CEMBS构造方法中存在的问题 ,首次提出了一种基于RSA密码体制的简洁、高效、安全的CEMBS构造方法 在此基础上 。
Fairness is one of the basic requirements of E commerce protocols CEMBS is proved to be an important cryptographic building primitive in constructing fair exchange protocols In this paper flaws of the existing CEMBS implementing methods are analyzed A new CEMBS constructing method based on RSA cryptosystem is proposed, which is proved to be simple, efficient and secure Afterwards, a fair exchange protocol is built using the newly constructed CEMBS And the devised scheme is the first efficient CEMBS based on RSA, which is the most popular public key cryptosystem
出处
《计算机研究与发展》
EI
CSCD
北大核心
2004年第3期420-425,共6页
Journal of Computer Research and Development
基金
国家"九七三"重点基础研究发展规划基金项目 (G19990 3 5 80 2
G19990 3 5 810 )
国家自然科学基金项目 ( 60 0 83 0 0 7)