An Efficient Prozy Signature Scheme without Random Oracle Model

摘要：

Proxy signature is an important delegation technology, it allows an original signer to delegate her signing capability to a proxy signer and the proxy signer can produce a signature on behalf of the original signer. In this paper, we proposed an efficient proxy signature scheme without random oracle model based on Zhang et. als signature scheme. Then the scheme is proven secure in the standard model and the security of the scheme is related to the k+1-Square Roots Assumption. Compared with Huang et. al scheme, our scheme has several advantages over Huang et.als scheme in terms of the size of public key and computational costs of generation and verification of proxy signature.

关键词： Prozy signature The k+1-square roots problem Security proof Standard model

作者: Jianhong Zhang Jane Mao Yixian Yang

作者单位: College of sciences, North China University of Technology, Beijing 100144, P.R.China School of infor College of sciences,N orth China University of Technology, Beijing 100144, P.R.China School of information engineering, Beijing University of posts and telecommunications, Beijing 10087

会议类型: 国际会议

会议名称: Fourth International Conference，Inscrypt 2008(第四届中国密码学与信息安全国际会议)

会议地点: 北京

会议语种:英文

页码: 23-36

在线出版日期: 2008-12-01（万方平台首次上网日期，不代表论文的发表时间）