| ElGamal签名方案及其变体之间的安全性关系 |
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| 引用本文： | 唐飞,林昌露,郭玲玲,张胜元.ElGamal签名方案及其变体之间的安全性关系[J].福建师范大学学报(自然科学版),2012(2):46-50. |
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| 作者姓名： | 唐飞 林昌露 郭玲玲 张胜元 |
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| 作者单位： | 福建师范大学网络安全与密码技术重点实验室 |
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| 基金项目： | 国家自然科学基金资助项目(11026008);福建省自然科学基金资助项目(2011J05147) |
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| 摘 要： | 主要讨论ElGamal签名方案及其变体方案之间的安全性关系.首先指出已有的文献在证明过程中的一个误用,该误用会对相应签名方案的安全性构成威胁,其次从安全强等价的角度重新给出ElGamal签名方案及其变体方案之间的安全性关系分类.
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| 关 键 词： | 数字签名 消息恢复 强等价 安全强等价 |
Security Relation between ElGamal Signature Scheme and Its Variants |
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| TANG Fei,LIN Chang-lu,GUO Ling-ling,ZHANG Sheng-yuan.Security Relation between ElGamal Signature Scheme and Its Variants[J].Journal of Fujian Teachers University(Natural Science),2012(2):46-50. |
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| Authors: | TANG Fei LIN Chang-lu GUO Ling-ling ZHANG Sheng-yuan |
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| Institution: | (Key Laboratory of Network Security and Cryptography,Fujian Normal University,Fuzhou 350007,China) |
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| Abstract: | It analyze the security between ElGamal signature scheme and its variants.One mistake of proof is pointed out,and this type of mistake threatens the security of signature schemes.Then,it re-classify the ElGamal signature scheme and its variants using the notion of secure strong equivalence. |
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| Keywords: | digital signature message recovery strong equivalence secure strong equivalence |
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