新的代理签名者身份隐藏的代理签名体制  

A New Proxy Signature Scheme with Proxy Signer Privacy Protection

作　　者：宋夏[1] 戚文峰[1] 

机构地区：[1]信息工程大学信息研究系,河南郑州450002

出　　处：《太原理工大学学报》2007年第3期202-204,208,共4页Journal of Taiyuan University of Technology

基　　金：国家自然科学基金资助项目(60373092)

摘　　要：利用椭圆曲线上的双线性映射设计了一种新的代理签名体制。该体制在验证时只能识别原始签名者的身份,而不能识别代理签名者的身份,从而达到了保护代理签名者利益的目的。但是在出现分歧时,原始签名者可以向验证者提供证据来指出代理签名者的身份,这样也保护了原始签名者的利益。该体制无需可信中心参与,有效地隐藏了代理签名者的身份,同时还具有短签名的优点。In this paper we propose a new proxy signature scheme from bilinear pairing. In our scheme, when the signature has been verified, only the original signer＇s identity can be confirmed, the proxy signer＇s identity could not be known for protecting the benefit of the proxy signer. When the disputation is appeared, the original signer can indicate the identity of the proxy signer to the verifier for protecting his own benefit. In our scheme, a trusted authority need not involved and the proxy signer＇s privacy can he protected efficiently. Moreover, our scheme is designed from bilinear pairing, thus it has the advantages which short signatures have.

关 键 词：代理签名 双线性映射 短签名 身份隐藏 

分 类 号：TP309[自动化与计算机技术—计算机系统结构]