可否认的基于属性的指定证实人签名方案

为了使签名人具有否认无效签名的权利, 首次提出可否认的基于属性的指定证实人签名模型, 构造了一个可否认的基于属性的指定证实人签名方案。在该方案中, 签名者和指定的证实人均可对签名的有效性进行确认, 并且可以否认无效的签名。最后, 对方案的正确性进行了分析, 并在随机预言模型下证明了其安全性。分析表明, 本方案具有不可伪造性, 并能抵抗合谋攻击。...

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Bibliographic Details
Published in计算机应用研究 Vol. 31; no. 1; pp. 213 - 216
Main Author 任燕 唐春明
Format Journal Article
LanguageChinese
Published 运城学院应用数学系,山西运城044000%广州大学数学与信息科学学院,广州,510006 2014
广州大学数学与信息科学学院,广州510006
Subjects
基于属性签名
指定证实人签名
数字签名
designated confirmer signature
digital signature
数字签名
attribute-based signature
基于属性签名
指定证实人签名
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ISSN1001-3695
DOI10.3969/j.issn.1001-3695.2014.01.050

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Summary:为了使签名人具有否认无效签名的权利, 首次提出可否认的基于属性的指定证实人签名模型, 构造了一个可否认的基于属性的指定证实人签名方案。在该方案中, 签名者和指定的证实人均可对签名的有效性进行确认, 并且可以否认无效的签名。最后, 对方案的正确性进行了分析, 并在随机预言模型下证明了其安全性。分析表明, 本方案具有不可伪造性, 并能抵抗合谋攻击。
Bibliography:51-1196/TP
digital signature attribute-based signature designated confirmer signature
REN Yan, TANG Chun-ming（ 1. College of Mathematics ＆ Information Science, Guangzhou University, Guangzhou 510006, China;2. Dept. of Applied Mathematics, Yuncheng University, Yuncheng Shanxi 044000, China）
This paper proposed a new variant of designated confirmer signatures model, called deniable attribute-based designated confirmer signature, in which both the signer and the designated confirmer could run the same protocols to confirm a valid designated confirmer signatures or disavow an invalid signature. And it provided the proof of correctness and security in the random oracle （RO） model . Analysis results show that this scheme obtains the advantages of unforgeability and can resist conspiracy attack.
ISSN:1001-3695
DOI:10.3969/j.issn.1001-3695.2014.01.050