%0 Journal Article
%T Efficient identity-based threshold ring signcryption scheme<br>一种有效基于身份的门限环签密方案
%A SUN Hu
%A GUO Lei
%A ZHENG Xue-feng
%A WANG Ai-min
%A <br>孙　华
%A 郭　磊
%A 郑雪峰
%A 王爱民
%J 计算机应用研究
%D 2012
%I 
%X In order to design an identity-based threshold ring signcryption, this paper presented an efficient identity-based threshold ring signcryption scheme without random oracles by means of secret sharing and bilinear pairing technique, and analyzed the security of the scheme. Finally, It proved this scheme satisfied indistinguishability against adaptive chosen ciphertext attacks and existential unforgeability against adaptive chosen message and identity attacks in terms of the hardness of DBDH problem and CDH problem.
%K threshold ring signcryption
%K bilinear pairing
%K computational Diffie-Hellman problem
%K decisional bilinear Diffie-Hellman problem
%K identity based cryptography<br>门限环签密
%K 双线性对
%K CDH问题
%K DBDH问题
%K 基于身份的密码学
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=5B3AB970F71A803DEACDC0559115BFCF0A068CD97DD29835&cid=8240383F08CE46C8B05036380D75B607&jid=A9D9BE08CDC44144BE8B5685705D3AED&aid=3178011684088478B998471C836E07CE&yid=99E9153A83D4CB11&vid=771469D9D58C34FF&iid=DF92D298D3FF1E6E&sid=DD82672401351C7D&eid=8ACDF1140B67B9CB&journal_id=1001-3695&journal_name=计算机应用研究&referenced_num=0&reference_num=18