%0 Journal Article
%T An ID-based Proxy Signcryption Scheme with Fast Revocation<br>基于身份的可快速撤销代理权的代理签密方案
%A Yu Yong
%A Yang Bo
%A Li Fa-gen
%A Sun Ying
%A <br>禹勇
%A 杨波
%A 李发根
%A 孙颖
%J 电子与信息学报
%D 2008
%I 
%X Proxy signcryption schemes allow an original signcrypter to delegate his signcryption rights to a proxy signcrypter. However, the existing proxy signcryption schemes have the defect that can not solve the proxy revocation problem, that is, how to revoke the delegated signcryption rights of a proxy signcrypter. Based on the bilinear pairings, a new identity-based proxy signcryption scheme is proposed in this paper. A SEcurity Mediator (SEM) is introduced in the scheme to help a proxy signcrypter to generate valid proxy signcryptions, to examine whether a proxy signcrypter signcrypts messages according to the warrant, and to check the revocation of a proxy signcrypter. It is shown that the proposed scheme satisfies all the security requirements of a secure proxy signcryption scheme. Moreover, a proxy signcrypter must cooperate with the SEM to generate a valid proxy signcryption, which makes the new scheme has an effective and fast proxy revocation.
%K Digital signature
%K Proxy signcryption
%K Identity based<br>数字签名
%K 代理签密
%K 基于身份
%K 基于身份
%K 快速
%K 代理权
%K 签密方案
%K Fast
%K Scheme
%K 功能
%K 合作
%K 安全要求
%K 检查
%K 签名
%K 授权证书
%K 监督
%K 作用
%K 安全中介
%K 双线性对
%K 权利
%K 问题
%K 代表
%K 代理签密
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=5B3AB970F71A803DEACDC0559115BFCF0A068CD97DD29835&cid=1319827C0C74AAE8D654BEA21B7F54D3&jid=EFC0377B03BD8D0EF4BBB548AC5F739A&aid=F3A2EC3513C0BD0CDAB0DF890D56290A&yid=67289AFF6305E306&vid=340AC2BF8E7AB4FD&iid=38B194292C032A66&sid=B7DE0F3CA34DA149&eid=DEE640F0CDC9D495&journal_id=1009-5896&journal_name=电子与信息学报&referenced_num=0&reference_num=12