| 具有前向安全性质的指定验证人代理签名方案 |
| |
| 引用本文： | 左为平,王彩芬.具有前向安全性质的指定验证人代理签名方案[J].计算机应用,2007,27(8):1898-1900. |
| |
| 作者姓名： | 左为平 王彩芬 |
| |
| 作者单位： | [1]西北师范大学,数学与信息科学学院,兰州730070 [2]天水师范学院,数学与信息科学学院,甘肃天水741000 |
| |
| 基金项目： | 甘肃省自然科学基金
,
甘肃省科技攻关项目 |
| |
| 摘 要： | 由于已有的指定验证人代理签名方案都不具有前向安全的性质，基于有限域上离散对数难解问题和强RSA假设，应用前向安全理论和指定验证人代理签名方案思想，提出了一种具有前向安全特性的指定验证人代理签名方案。在该方案中，代理签名具有前向安全性，即使代理签名人当前时间段的代理签名密钥被泄漏，敌手也不能伪造此时段之前的签名，以前所产生的代理签名依然有效。
|
| 关 键 词： | 前向安全 离散对数 强RSA假设 代理签名 |
| 文章编号： | 1001-9081（2007）08-1898-03 |
| 收稿时间： | 2007-02-05 |
| 修稿时间： | 2007-02-05 |
Forward secure designated-verifier proxy signature scheme |
| |
| ZUO Wei-ping,WANG Cai-fen.Forward secure designated-verifier proxy signature scheme[J].journal of Computer Applications,2007,27(8):1898-1900. |
| |
| Authors: | ZUO Wei-ping WANG Cai-fen |
| |
| Affiliation: | 1. College of Mathematics and Information Science, Northwest Normal University, Lanzhou Gansu 730070, China; 2. College of Mathematics and Information Science, Tianshui Normal College, Tianshui Gansu 741000, China |
| |
| Abstract: | As the existing designated-verifier proxy signature can not provide forward-security, so a forward secure designated-verifier proxy signature scheme was proposed by applying the concept of forward security to the designated verifier proxy signature, based on the difficulty of solving discrete logarithm problems and the strong RSA assumption. In the scheme, proxy signature is forward secure, even if an adversary has gotten the current proxy signers' key, it could not forge proxy signature pertaining to the past, that is, previous generated proxy signature still remains valid. |
| |
| Keywords: | forward secure discrete logarithm strong-RSA assumption proxy signature |
| 本文献已被 维普 万方数据 等数据库收录！ |
| 点击此处可从《计算机应用》浏览原始摘要信息 |
|
点击此处可从《计算机应用》下载全文 |
|
