摘要
通过运用循环群和对换的性质讨论和证实了三元素等价现象,分析了该现象对XTR公钥体制的安全性影响,提出了一种新的改进方案,分析了新算法的计算复杂度与通信开销。与其他同类方法相比较,新方案更有效地提高了XTR的安全规模强度。
Tri-unit-equivalence phenomenon was discussed and proved by the property of cyclic group and transposition. The effect of the phenomenon on XTR security was analyzed. A new improved scheme was proposed, and its security, computational complexity and communications cost were analyzed. The improved scheme is more effective than the others tO improve the scale of XTR security.
出处
《计算机应用》
CSCD
北大核心
2008年第12期3211-3213,3230,共4页
journal of Computer Applications
关键词
循环群
对换
有效的紧致子群迹表示
公钥体制
计算复杂度
通信开销
cyclic group
transpostion
Efficient and Compact Subgroup Trace Representation （XTR）
public key cryptosystem
computational complexity
communications cost
