| 基于ID的盲签名方案 |
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| 引用本文： | 王璇,戚文峰.基于ID的盲签名方案[J].信息工程大学学报,2007,8(4):391-395. |
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| 作者姓名： | 王璇 戚文峰 |
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| 作者单位： | 信息工程大学,信息工程学院,河南,郑州,450002 |
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| 基金项目： | 国家自然科学基金;国家高技术研究发展计划(863计划) |
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| 摘 要： | 以双线性映射为工具,基于SDH假设,构造了两种基于ID的盲签名方案。首先设计了一种基于ID的签名方案IBS,然后在此基础上设计了两种基于ID的盲签名方案,称为BIBS1和BIBS2;在随机预言模型中证明了它们的盲性和不可伪造性。基于ROS问题的难解性,BIBS1方案可抵抗generic parallel攻击。与2002年Zhang和Kim的方案相比,签名过程中少计算了一个双线性对,从而提高了效率。不依赖于ROS问题的难解性,BIBS2方案仍可抵抗generic parallel攻击,且与2003年Zhang和Kim的方案计算量相当。此外,这两种基于ID的盲签名方案均利用在适应性选择消息攻击下存在性不可伪造的BB在线/离线签名提取私钥,对于抵抗不固定身份伪造,具有更高的安全性。
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| 关 键 词： | 双线性映射 盲签名 基于ID |
| 文章编号： | 1671-0673(2007)04-0391-05 |
| 修稿时间： | 2007年3月14日 |
Two Kinds of ID-Based Blind Signature Schemes |
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| WANG Xuan,QI Wen feng.Two Kinds of ID-Based Blind Signature Schemes[J].Journal of Information Engineering University,2007,8(4):391-395. |
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| Authors: | WANG Xuan QI Wen feng |
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| Affiliation: | Insititute of Information Engineering,Information Engineering University |
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| Abstract: | In this paper,we propose two ID-based blind signatures based on SDH assumption from bilinear pairings.First we propose an ID-based signature called IBS.Then,based on IBS,we propose two ID-based blind signatures called BIBS1 and BIBS2,respectively,and prove their security from blindness and unforgeability in the random oracle model.Relying on the difficulty of ROS-problem,BIBS1 can resist the generic parallel attack.A paring computation being saved,BIBS1 is more efficient than the scheme proposed by Zhang and Kim in 2002.Being independent of the difficulty of ROS-problem,BIBS2 can resist the parallel attack.Moreover,BIBS2 is as efficient as the scheme proposed by Zhang and Kim in 2003. In addition,Extracting private key by making use of BB on-line/off-line signature which existed unforgeable against adaptively choosing message attack,BIBS1 and BIBS2 are more secure than Zhang and Kim's schemes against non-fixed ID forgery. |
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| Keywords: | bilinear pairings blind signature ID-based |
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