| Hsu-Wu-Wu门限代理方案的改进 |
| |
| 引用本文： | 袁玉敏.Hsu-Wu-Wu门限代理方案的改进[J].厦门理工学院学报,2004,12(4):73-78. |
| |
| 作者姓名： | 袁玉敏 |
| |
| 作者单位： | 厦门理工学院管理科学系,福建,厦门,361005 |
| |
| 摘 要： | 对Hsu,Wu和Wu提出的门限代理签名方案的安全性进行了分析,表明该方案易受内部攻击,即原始签名人及代理签名人都可通过改变公钥,成功地伪造有效的代理签名.基于Hsu等人的方案,提出了一个改进方案,新方案消除了Hsu等人方案的某些安全缺陷.
|
| 关 键 词： | 数字签名 代理签名 门限代理签名 拉格朗日插值公式 |
| 文章编号： | 1008-3804(2004)04-0073-06 |
| 修稿时间： | 2004年5月9日 |
Improvement of Hsu-Wu-Wu's Threshold Proxy Signature Scheme |
| |
| YUAN Yu-min.Improvement of Hsu-Wu-Wu''''s Threshold Proxy Signature Scheme[J].Journal of Xiamen University of Technology,2004,12(4):73-78. |
| |
| Authors: | YUAN Yu-min |
| |
| Abstract: | This paper presents a cryptanalysis of Hsu, Wu and Wu 's threshold proxy signature scheme by showing its vulnerability to an insider attack, potential for the possibility that any original signer or proxy signer can forge a valid proxy signature by changing her/his public key. An improved alternative based on the Hsu scheme is then proposed that eliminates the security flaws of the original. |
| |
| Keywords: | digital signature proxy signature threshold proxy signature Lagrange Interpolating Formula |
| 本文献已被 CNKI 万方数据 等数据库收录！ |
|
