摘要
通过运用循环群和置换的性质,进一步探讨了三元素等价现象的特性,提出了消除三元素等价现象的方法,并总结概括各方法的效果;提出了一种改进方案,分析了该方案的计算复杂度、通信开销和安全性;改进方案简单有效地提高了XTR的安全强度。
Based on the property of cyclic group and permutation,the special property of tri-unit-equivalence phenomenon is discussed in more details.Methods eliminating the phenomenon are showed;and the results of the methods are generalized.An improved scheme is proposed.Its security, computational complexity and communications cost are analyzed.It improves the XTR（Efficient and Compact Subgroup Trace Representation） security directly and effectively.
出处
《计算机工程与应用》
CSCD
北大核心
2010年第27期106-108,共3页
Computer Engineering and Applications
关键词
循环群
置换
有效的紧致子群迹的表示(XTR)
计算复杂度
通信开销
安全性
cyclic group
permutation
Efficient and Compact Subgroup Trace Representation（XTR）
computational complexity
communications cost
security
