摘要
门限签名方案是现代电子商务中重要的一种数字签名,但很多签名方案中存在各种问题,其中合谋攻击缺陷是最主要的缺陷.在研究了一种门限签名方案后,分析出了该门限签名方案的几个缺陷,并给出了改进方案及其正确性证明和性能比较.
Threshold signature scheme is an important digital signature of modern electronic business.But many of them have some different limitations,in which the conspiracy attack is a major one.After the stadies of a threshold signature scheme,and the analysis of its weakness,this paper proposes an improved scheme.The correctness proof and performanco comparison are here by given.
作者
胡迎松
徐鹏
HU Ying-song;XU Peng(School of Computer Science and Technology Huazhong University of Science and Technology,Wuhan 430074,China)
出处
《小型微型计算机系统》
CSCD
北大核心
2007年第1期58-61,共4页
Journal of Chinese Computer Systems
关键词
密码学
数字签名
门限签名
合谋攻击
cryptograph
digital signature
threshold signature scheme
conspiracy attack
