计算机工程 ›› 2008, Vol. 34 ›› Issue (24): 177-179.doi: 10.3969/j.issn.1000-3428.2008.24.062

• 安全技术 • 上一篇    下一篇

基于身份的卡梅隆数字签名方案

陆 怡,唐元生   

  1. (扬州大学数学科学学院,扬州 225002)
  • 收稿日期:1900-01-01 修回日期:1900-01-01 出版日期:2008-12-20 发布日期:2008-12-20

ID-based Chameleon Digital Signature Scheme

LU Yi, TANG Yuan-sheng   

  1. (College of Mathematics Science, Yangzhou University, Yangzhou 225002)
  • Received:1900-01-01 Revised:1900-01-01 Online:2008-12-20 Published:2008-12-20

摘要: 卡梅隆签名是一种非交互式的数字签名,其使用的Hash函数是一种特殊的陷门单向Hash函数——卡梅隆Hash。卡梅隆数字签名具有不可传递性和不可否认性等优点。该文利用基于身份和双线性对的签名方案,结合卡梅隆Hash函数,构造了基于身份的卡梅隆数字签名方案。与传统的卡梅隆方案相比,该方案中公开Hash密钥的所有者无须恢复相应的私钥,且是指定验证者的方案。

关键词: 卡梅隆Hash, 基于身份的卡梅隆数字签名, 双线性对

Abstract: Chameleon signature is a non-interactive signatures, and its building block is Chameleon Hash function, a trapdoor one-way Hash function. The distinguishing characteristic of Chameleon signature is non-transferable and non-repudiation. This paper proposes a ID-based Chameleon digital signature which makes use of ID-based signature scheme from bilinear pairings byte Combining with Chameleon Hash function. Compared with the conventional Chameleon Hash functions, the owner of a public Hash key in the ID-based Chameleon Hash scheme does not necessarily need to retrieve the associated secret key in the scheme and it is an appointed verifier scheme.

Key words: Chameleon Hash, ID-based Chameleon digital signature, bilinear pairing

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