| 标准模型下身份匿名签名方案分析与设计 |
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| 引用本文： | 张明武,杨波,姚金涛,张文政. 标准模型下身份匿名签名方案分析与设计[J]. 通信学报, 2011, 32(5): 40-46 |
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| 作者姓名： | 张明武 杨波 姚金涛 张文政 |
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| 作者单位： | 1. 华南农业大学信息学院,广东,广州,510642
2. 现代通信国家重点实验室,四川,成都,610041 |
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| 基金项目： | 国家自然科学基金资助项目(60773175,60973134); 现代通信国家重点实验室基金资助项目(9140C1108020906); 广东省自然科学基金资助项目(10151064201000028,10351806001000000); 广东高校优秀青年创新人才培育项目(wym09066)~~ |
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| 摘 要： | 对ZLW(2008)和LHMM(2009)2个匿名签名方案的分析,指出前者不具有对签名消息的可认证性,后者不能抵抗已知签名存在伪造性攻击。在分析2个方案弱点的基础上,提出一种新的匿名签名方案,该方案达到了更强的Model3安全性且计算量较小,签名过程只需要2个群G中的乘法运算,验证过程需要n+1个双线性对运算,与其他同类方案比较,提出的方案具有更优的签名计算量和更高的签名安全性。
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| 关 键 词： | 匿名签名 标准模型 匿名性 不可伪造性 |
Cryptanalysis and design of signature schemes with identity ambiguity in the standard model |
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| ZHANG Ming-wu,YANG Bo,YAO Jin-tao,ZHANG Wen-zheng. Cryptanalysis and design of signature schemes with identity ambiguity in the standard model[J]. Journal on Communications, 2011, 32(5): 40-46 |
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| Authors: | ZHANG Ming-wu YANG Bo YAO Jin-tao ZHANG Wen-zheng |
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| Affiliation: | ZHANG Ming-wu1,YANG Bo1,YAO Jin-tao1,ZHANG Wen-zheng2(1.College of Informatics,South China Agricultural University,Guangzhou 510642,China,2.National Laboratory for Modern Communications,Chengdu 610041,China) |
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| Abstract: | The security and flaw of the two anonymous signature schemes called ZLW(2008) and LHMM(2009) were analyzed,where the ZLW scheme couldn't provide signed message verifiability and the LHMM scheme couldn't resist on the multiple-known-signature existential forgery.A novel anonymous signature scheme was proposed that enforced the security level to Model3 security and reduced the computational cost,which only needed two multiple calculations in G in signing phase and n+1 bilinear pairing operators in verifying a... |
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| Keywords: | ring signature standard model anonymity unforgeability |
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