Identity-based Broadcast Encryption with Shorter Transmissions

作     者：张乐友 胡予濮 牟宁波 

作者机构：Department of Mathematical Science Xidian UniversityXi'an 710071China Key Laboratory of Computer Networks and Information SecurityMinistry of EducationXidian UniversityXi'an 710071China 

出 版 物：《Journal of Shanghai Jiaotong university(Science)》 (上海交通大学学报（英文版）)

年 卷 期：2008年第13卷第6期

页      面：641-645页

核心收录：

学科分类：08[工学] 0839[工学-网络空间安全] 081201[工学-计算机系统结构] 0812[工学-计算机科学与技术（可授工学、理学学位）] 

基　　金：the National Natural Science Foundation of China (Nos. 60673072, 60803149) the National Basic Research Program (973) of China(No. 2007CB311201) 

主　　题：broadcast encryption identity-based encryption short transmissions provable security 

摘      要：This paper describes two identity-based broadcast encryption （IBBE） schemes for mobile ad hoc networks. The first scheme proposed achieves sub-linear size cipertexts and the second scheme achieves O（1）- size ciphertexts. Furthermore, when the public keys are transmitted, the two schemes have short transmissions and achieve O（1） user storage cost, which are important for a mobile ad hoc network. Finally, the proposed schemes are provable security under the decision generalized bilinear Diffi-Hellman （GBDH） assumption in the random oracles model.