Key-insulated aggregate signature  

作　　者：Huiyan ZHAO Jia YU Shaoxia DUAN Xiangguo CHENG Rong HAO 

机构地区：[1]College of Information Engineering, Qingdao University, Qingdao 266071, China [2]Shandong Provincial Key Laboratory of Computer Network, Jinan 250014, China [3]State Key Laboratory of Information Security, Institute of Information Engineering, Chinese Academy of Sciences, Beijing 100093, China

出　　处：《Frontiers of Computer Science》2014年第5期837-846,共10页中国计算机科学前沿（英文版）

基　　金：This research was supported by the National Natural Science Foundation of China （Grant Nos. 61272425, 61170021, 61202475）, Qingdao Science and Technology Development Project （12-1-4-2-（16）-jch, 13-1-4-151-jch）, Huawei Technology Fund （YB2013120027）, the Founda- tion of China Scholarship Council, Shandong Provincial Key Laboratory of Computer Network （SDKLCN-2013-03）, the Open Research Fund from the State Key Laboratory of Information Security, the Open Project Foun- dation of Shandong Provincial Key Laboratory of Software Engineering （2013SE01）, and China Postdoctoral Science Foundation （2014M551870）.

摘　　要：In order to minimize the damage caused by key exposure in aggregate signatures, a key-insulated aggregate signature scheme is proposed in this paper. We give the def- inition and the security model of the key-insulated aggregate signature. We also construct a concrete key-insulated aggre- gate signature scheme that meets our definition. Our scheme has the properties of efficient verification and short signature length. We prove the security of our scheme in the random oracle model under the computation Diffie-Hellman assump- tion.In order to minimize the damage caused by key exposure in aggregate signatures, a key-insulated aggregate signature scheme is proposed in this paper. We give the def- inition and the security model of the key-insulated aggregate signature. We also construct a concrete key-insulated aggre- gate signature scheme that meets our definition. Our scheme has the properties of efficient verification and short signature length. We prove the security of our scheme in the random oracle model under the computation Diffie-Hellman assump- tion.

关 键 词：aggregate signature key-insulated aggregatesignature provable security bilinear pairings 

分 类 号：TP393.08[自动化与计算机技术—计算机应用技术] TP309[自动化与计算机技术—计算机科学与技术]