| 对一种新型代理签名方案分析与改进之评论 |
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| 引用本文： | 王伟杰,刘政连,林昌露,余淑娥.对一种新型代理签名方案分析与改进之评论[J].福建师大福清分校学报,2012(2):25-30,65. |
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| 作者姓名： | 王伟杰 刘政连 林昌露 余淑娥 |
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| 作者单位： | 1. 福建师范大学福清分校数学与计算机科学系,福建福清,350300
2. 福建师范大学数学与计算机科学学院,福建福州,350007 |
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| 基金项目： | 国家自然科学基金资助项目，福建师大福清分校大学生创新项目 |
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| 摘 要： | 2006年鲁荣波在其博士论文＂代理数字签名和群数字签名的分析与设计＂中对一种新型代理签名方案进行了分析与改进,该方案改进自谷利泽等人于2005年所提出的代理签名方案,鲁氏强化了谷氏在不可伪造性上的弱点,并且回避了孤悬因子所产生的弱点安全问题。然而鲁氏在改进的方案中,误用参数及给了错误的计算方法,因此在推导的过程也就得到错误的结果。本论文指出错误之处,并给出正确算法,使其理论完善。
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| 关 键 词： | 代理签名 匿名性 群签名 孤悬因子 |
Comment on the Cryptanalysis and Improvement of a New Proxy signature Scheme |
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| WANG Weijie,LIU Chenglian,LIN Changlu,YU Shue.Comment on the Cryptanalysis and Improvement of a New Proxy signature Scheme[J].Journal of Fuqing Branch of Fujian Normal University,2012(2):25-30,65. |
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| Authors: | WANG Weijie LIU Chenglian LIN Changlu YU Shue |
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| Institution: | 1(1.Fuqing Branch of Fujian Normal University,Fuqing,Fujian,350300;2.school of Mathematics and Computer Science,Fujian Normal University,Fuzhou,350007) |
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| Abstract: | In 2006,Lu proposed an analysis and design of proxy signature with group signature in his dissertation based on the cryptanalysis and improvement of a new proxy signature scheme.This scheme improved from Gu et al.’s method who proposed a new proxy signature scheme in 2005.He strongly revised the denial of vulnerability problem based on Gu et al.’s,and also solved the suspending factor issues.However he misused parameters and calculated the wrong result.He therefore obtained a incorrect solution.In this paper,we modified this situation and algorithm where it would be correct and perfect. |
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| Keywords: | proxy signature anonymous group signature suspending factor |
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