An Efficient t-times Proxy Ring Signature Scheme with Revocable Anonymity

摘要：

Proxy signature is an important delegation technique. Since it was introduced in 1996, many variants of proxy signature schemes have been proposed. Among of them, the requirement of proxy signers privacy protection and the revocation of proxy signers anonymous identity are needful in some practical applications. To satisfy special occasion demand, a new signature type: proxy ring signature with revocable anonymity, was proposed by Hu et al |5. It allows that proxy signer anonymously produce a proxy signature. However, until now, all proxy ring signature schemes with revocable anonymity are insecure, they cannot realize anonymity revocation. In some cases, signing time of proxy signer needs to be restricted and the illegal behavior of proxy signer needs to be revoked. To overcome this problem, we propose a t ;times proxy ring signature with revocable anonymity in the paper, it can not only realize anonymity revocation, but also limit signing times of proxy signer. Finally, we show that the proposed scheme is completeness, anonymity, revocation and unforgeability.

关键词： proxy ring signature anonymity unforgeability,revocation proxy signature

作者: Jianhong Zhang Hua Chen

作者单位: College of Sciences North China University of Technology Beijing, China

会议类型: 国际会议

会议名称: 2011 International Conference on Information and Computer Networks(ICICN 2011)(2011年信息与计算机网络国际会议)

会议地点: 贵阳

会议语种:英文

页码: 6-10

在线出版日期: 2011-01-26（万方平台首次上网日期，不代表论文的发表时间）