| 指定验证者签名方案的安全性分析 |
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| 引用本文： | 杜红珍,温巧燕.指定验证者签名方案的安全性分析[J].计算机工程,2010,36(12):144-145. |
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| 作者姓名： | 杜红珍 温巧燕 |
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| 作者单位： | 1. 宝鸡文理学院数学系,宝鸡,721007
2. 北京邮电大学网络与交换技术国家重点实验室,北京,100876 |
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| 基金项目： | 陕西省自然科学基础研究计划项目(2010JM2016)；宝鸡文理学院基金资助项目(ZK0952) |
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| 摘 要： | 对Kang等人和张学军提出的2个基于身份的指定验证者签名方案(Kang方案和Zhang方案)进行安全性分析，指出在Kang方案中，非指定验证者也可以验证签名的有效性，不能抵抗伪造攻击和授权攻击，Zhang方案也不满足不可伪造性、强壮性和不可授权性。
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| 关 键 词： | 指定验证者签名 不可伪造性 不可授权性 |
Cryptanalysis of Designated Verifier Signature Schemes |
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| DU Hong-zhen,WEN Qiao-yan.Cryptanalysis of Designated Verifier Signature Schemes[J].Computer Engineering,2010,36(12):144-145. |
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| Authors: | DU Hong-zhen WEN Qiao-yan |
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| Affiliation: | (1. Department of Mathematics, Baoji University of Arts and Sciences, Baoji 721007;2. State Key Laboratory of Networking and Switching Technology, Beijing University of Posts and Telecommunications, Beijing 100876) |
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| Abstract: | This paper cryptanalyzes an ID-based designated verifier signature schemes proposed by Kang, et al, and Zhang Xuejun(Zhang scheme and Kang scheme), and shows that the scheme does not satisfy the security property that only the designated verifier can check the validity of signatures. It points out the scheme is insecure against forgeability attack and delegatability attack. It finds out the scheme does not satisfy the securities of unforgeability, strongness and non-delegatability. |
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| Keywords: | designated verifier signature unforgeability non-delegatability |
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