An Identity Based Proxy Re-Signature Scheme

摘要：

A proxy re-signature scheme is one which allows a semi-trusted proxy to transform a signer As signature on a message m, into a signature of signer B on the same message. The proxy is however not allowed to sign arbitrary messages on behalf of either signer. Several proxy re-signature schemes have been proposed, including one ID-based scheme, by Hu et al. In this paper, we describe the flaw in this scheme, with respect to the definitions of delegator and delegate security. defined by Ateniese et al. We define a novel and secure ID-Based proxy re-signature scheme, which satisfies these security definitions. In addition, we explore the applications of such a signature in inter-domain security.. A modified version of this signature, which can be used to transform signatures between signers in different IDBased domains, is detailed.

关键词： Proxy re-signature identity based signature interdomain

作者: Tulasi Menon

作者单位: Tata Consultancy Services (TCS) Ltd Chennai, India

会议类型: 国际会议

会议名称: 2011 International Conference on Security Science and Technology(ICSST 2011) (2011年安全科学与技术国际会议)

会议地点: 重庆

会议语种:英文

页码: 127-130

在线出版日期: 2011-01-21（万方平台首次上网日期，不代表论文的发表时间）