摘要
辫群是可以用有限个生成元表示的有限非交换群,近年来它被认为是公钥加密的一种重要来源.本文基于辫群中的难解问题构造了一个多级代理签名方案.新方案具有不可伪造性,不可抵赖性.
Braid groups are infinte non-commutative groups, and have been used recently as a new soure for public-key cryptography. In this paper, we propose a multiple grade proxy signature scheme based on the conjugacy problem, which is belived to be hard in braid groups. At same time, the new scheme also has the properties of not being faked up and undeniability.
出处
《山西师范大学学报（自然科学版）》
2009年第4期43-45,共3页
Journal of Shanxi Normal University(Natural Science Edition)
基金
山西省重点扶持学科项目资助
关键词
代理签名
多级代理签名
非交换群
辫群
proxy signature
mulitiple grade proxy signature
non-commutative groups
braid group
