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基于身份部分盲签名方案的分析与改进
引用本文:何俊杰,孙芳,祁传达.基于身份部分盲签名方案的分析与改进[J].计算机应用,2013,33(3):762-765.
作者姓名:何俊杰  孙芳  祁传达
作者单位:1.信阳师范学院 数学与信息科学学院, 河南 信阳 464000; 2.信阳师范学院 计算机与信息技术学院, 河南 信阳 464000
基金项目:国家自然科学基金资助项目(61272465); 河南省自然科学基金资助项目(102102210242, 122400450189); 河南省教育厅科学技术研究重点项目(12A520034)。
摘    要:对李明祥等(李明祥,赵秀明,王洪涛. 对一种部分盲签名方案的安全性分析与改进. 计算机应用, 2010, 30(10): 2687-2690)提出的一种基于身份的部分盲签名方案进行了安全性分析,指出方案中签名请求者可以非法修改协商信息。为了有效抵抗篡改协商信息攻击,提出一种改进的部分盲签名方案。在随机预言机模型下证明了新方案对自适应选择消息和身份攻击是存在性不可伪造的。与基于身份部分盲签名方案的性能比较显示,新方案具有较高的运算效率。

关 键 词:盲签名    部分盲签名    双线性对    基于身份    随机预言机模型
收稿时间:2012-09-25
修稿时间:2012-11-07

Cryptanalysis and improvement of ID-based partially blind signature scheme
HE Junjie SUN Fang QI Chuanda.Cryptanalysis and improvement of ID-based partially blind signature scheme[J].journal of Computer Applications,2013,33(3):762-765.
Authors:HE Junjie SUN Fang QI Chuanda
Affiliation:1.College of Mathematics and Information Science, Xinyang Normal University, Xinyang Henan 464000, China;
2.College of Computer and Information Technology, Xinyang Normal University, Xinyang Henan 464000, China
Abstract:The cryptanalysis of the ID-based partially blind signature scheme proposed by Li et al. (LI M X, ZHAO X M, WANG H T. Security analysis and improvement of a partially blind signature scheme. Journal of Computer Applications, 2010, 30(10): 2687-2690) showed that the signature requester could change the negotiated information illegally. Therefore, an improved partially blind scheme was purposed to resist the tampering negotiated information attacks. The new scheme was proved to be existentially unforgeable against adaptive chosen message and identity attacks in random oracle model. Compared with other ID-based partially blind signature schemes, the new scheme has higher computational efficiency.
Keywords:blind signature                                                                                                                        partially blind signature                                                                                                                        bilinear pairing                                                                                                                        ID-based                                                                                                                        random oracle model
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