作者投稿和查稿 主编审稿 专家审稿 编委审稿 远程编辑

计算机工程 ›› 2007, Vol. 33 ›› Issue (07): 158-159,. doi: 10.3969/j.issn.1000-3428.2007.07.057

• 安全技术 • 上一篇    下一篇

一种改进的动态门限签名方案

米军利,张建中   

  1. (陕西师范大学数学与信息科学学院,西安 710062)
  • 收稿日期:1900-01-01 修回日期:1900-01-01 出版日期:2007-04-05 发布日期:2007-04-05

Improved Dynamic Threshold Signature Scheme

MI Junli, ZHANG Jianzhong   

  1. (College of Mathematics and Information Science, Shaanxi Normal University, Xi’an 710062 )
  • Received:1900-01-01 Revised:1900-01-01 Online:2007-04-05 Published:2007-04-05

摘要: 针对WLC数字签名方案的不安全性,做了一些必要的改进。改进后的方案:只有指定的合成群秘书参与才能生成签名;而当有新成员加入或剔除违规成员时,系统本身的参数及其它成员的密钥对保持不变;系统的成员也可以用唯一的密钥对为不同群的消息签名。

关键词: 数字签名, 门限签名, 可追踪性, 系统稳定性

Abstract: Contraposed the insecurity of WLC-digital signature scheme, this paper makes some improvement. The main merits are that a valid signature is generated only by the designated clerk participating together: if some new members join the group or some members are deleted left the group, the system parameters and the key pairs of other members remain the same, and that an individual could sign messages for different organizations at the same time with the same secret key pair.

Key words: Digital signature, Threshold signature, Traceability, System stability

中图分类号: