摘要
门限密码学提供了建立入侵容忍应用的新方法。文中在介绍并分析了基于ECC的ElGamal数字签名方案和t out of n秘密共享方案的基础上,提出了一个基于ECC的零知识证明方法和一个基于ECC的门限数字签名方案;研究了该方法和方案在建立入侵容忍CA中的应用。最后,对比ITTC项目中关于入侵容忍CA设计的方案,分析显示该方案在安全性、效率和可用性方面具有良好的性能。
The threshold cryptography provides a new approach to building intrusion tolerance applications. This paper introduces and analyzes ECC based ElGamal threshold digital signature and t-out-of-n secret sharing scheme. Based on those, an ECC-based zero-knowledge test approach and an ECC based threshold digital signature scheme are presented. Then the application of these techniques in intrusion tolerant CA is studied. By comparing with the CA scheme of ITTC project, performance analysis shows that this scheme is characterized by better security as well as higher efficiency.
出处
《计算机应用》
CSCD
北大核心
2004年第2期5-8,共4页
journal of Computer Applications
基金
国家 86 3计划资助项目 (2 0 0 2AA1 42 0 40 )
