| 可证安全的常数长度无证书聚合签名方案 |
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| 引用本文： | 陆海军,于秀源,谢琪.可证安全的常数长度无证书聚合签名方案[J].上海交通大学学报,2012,46(2):259-263. |
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| 作者姓名： | 陆海军 于秀源 谢琪 |
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| 作者单位： | (杭州师范大学 信息科学与工程学院；密码及应用研究所, 杭州 310036) |
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| 基金项目： | 国家自然科学基金资助项目(61070153) |
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| 摘 要： | 针对无证书密码体制可以解决基于身份的公钥密码体制的密钥托管问题和基于证书的公钥密码体制的公钥认证问题，构造了无证书聚合签名的可证明安全模型，并提出了一个具体的签名长度与人数无关的聚合签名方案.基于计算性Diffie Hellman难题，在随机预言模型下，证明了提出的方案可以抵抗适应性选择消息和身份的存在性伪造攻击.
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| 关 键 词： | 无证书签名 聚合签名 随机预言模型 |
| 收稿时间： | 2011-04-25 |
Provably Secure Certificateless Aggregate Signature with Constant Length |
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| LU Hai-jun,YU Xiu-yuan,XIE Qi.Provably Secure Certificateless Aggregate Signature with Constant Length[J].Journal of Shanghai Jiaotong University,2012,46(2):259-263. |
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| Authors: | LU Hai-jun YU Xiu-yuan XIE Qi |
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| Institution: | (School of Information Science and Engineering; Institute of Cryptology and Its Applications,Hangzhou Normal University, Hangzhou 310036, China) |
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| Abstract: | Certificateless cryptosystem can solve the key escrow of ID-based cryptosystem and the public key authentication of certification-based cryptosystem.A formal model of certificateless aggregate signature was proposed.It also proposed a concrete certificateless aggregate signature scheme,in which the length of the signature is independent of the signers.Based on the hardness of computational Diffie-Hellman problem,the proposed scheme is secure against existential forgery under adaptive chosen messages and identities in random oracle mode. |
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| Keywords: | certificateless signature aggregate signature random oracle model |
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