| 改进的随机化部分盲签名方案 |
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| 引用本文： | 何俊杰,王娟,祁传达.改进的随机化部分盲签名方案[J].郑州大学学报(自然科学版),2013(3):41-44. |
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| 作者姓名： | 何俊杰 王娟 祁传达 |
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| 作者单位： | 信阳师范学院数学与信息科学学院,河南信阳464000 |
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| 基金项目： | 国家自然科学基金资助项目,编号61272465; 河南省自然科学基金资助项目,编号102102210242,122400450189; 河南省教育厅科学技术研究重点项目,编号12A520034 |
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| 摘 要： | 对张建中等提出的基于双线性对的随机化部分盲签名方案进行了安全性分析,发现方案不能抵抗篡改公共信息攻击.为此,提出了一个改进方案.分析结果表明,改进方案在满足不可伪造性、不可追踪性的同时,能够有效防止恶意的签名请求者非法修改事先协商的公共信息,保护签名者的合法权益.
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| 关 键 词： | 盲签名 部分盲签名 公共信息 双线性对 |
Improved Randomized Partially Blind Signature Scheme |
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| HE Jun-jie,WANG Juan,QI Chuan-da.Improved Randomized Partially Blind Signature Scheme[J].Journal of Zhengzhou University (Natural Science),2013(3):41-44. |
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| Authors: | HE Jun-jie WANG Juan QI Chuan-da |
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| Institution: | ( College of Mathematics and Information Science, Xinyang Normal University, Xinyang 464000, China) |
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| Abstract: | The security of the randomized partially blind signature scheme based on bilinear pairing pro- posed by Zhang et al. was analyzed. And the result showed that the scheme couldn＇ t resist the tampering common information attack. An improved scheme was proposed to overcome the attack. Security analysis results showed that the improved scheme not only satisfied unforgeability and unlinkability, but also could prevent the malicious signature requesters from tampering the common information which the signer and the user had agreed on, and protect the legal rights and interests of the signers effectively. |
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| Keywords: | blind signature partially blind signature common information bilinear pairing |
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