%0 Journal Article
%T Identity-based Broadcast Encryption Based on Ad hoc Networks<br>基于Ad hoc网的身份型广播加密方案
%A SUN Jin
%A HU Yu-pu
%A ZHANG Le-you
%A <br>孙瑾
%A 胡予濮
%A 张乐友
%J 计算机科学
%D 2011
%I 
%X To give concurrent consideration in the security and efficiency, a novel identity-based broadcast encryption was developed for ad hoc networks. Through security analysis, the correctness and effectiveness of the above methods were verified. Based on the standard model, the bilinear maps were introduced to achieve the collusion-secure for arbitrarily large of users during the broadcast communication. In the process of extract, new users could join dynamically without modification of user decryption keys nor ciphertext size by using ID,and its size not much than O(1). Simultancously, all efficiency measures were completed in O(r) time but not depended on the number of user m, thus the efficiency of transmission and storage was improved. Proof of security shows that the proposed scheme is IN-IN-CPA secure against static adversaries in the standard model under the (t,n)-GDDHE intractability assumption.
%K Mobile Ad hoc networks
%K Provably secure
%K Standard model
%K Fu11 collusion-secure<br>动态Ad
%K hoc网，可证明安全，标准模型，完全抗串谋攻击
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=5B3AB970F71A803DEACDC0559115BFCF0A068CD97DD29835&cid=8240383F08CE46C8B05036380D75B607&jid=64A12D73428C8B8DBFB978D04DFEB3C1&aid=C00B4D08BF7F2764C62DFFA0C8301007&yid=9377ED8094509821&vid=16D8618C6164A3ED&iid=0B39A22176CE99FB&sid=D997634CFE9B6321&eid=2A3781E88AB1776F&journal_id=1002-137X&journal_name=计算机科学&referenced_num=0&reference_num=13