An Efficient Broadcast Encryption Supporting Designation and Revocation Mechanisms

作     者：ZHU Yan YU Ruyun CHEN E HUANG Dijiang ZHU Yan;YU Ruyun;CHEN E;HUANG Dijiang

作者机构：School of Computer and Communication Engineering University of Science and Technology Beijing School of Computing Informatics and Decision System Engineering Arizona State University 

出 版 物：《Chinese Journal of Electronics》 (电子学报(英文))

年 卷 期：2019年第28卷第3期

页      面：445-456页

核心收录：

学科分类：0808[工学-电气工程] 0809[工学-电子科学与技术（可授工学、理学学位）] 08[工学] 0839[工学-网络空间安全] 0701[理学-数学] 

基　　金：supported by the National Natural Science Foundation of China(No.61472032) NSFC-Genertec Joint Fund for Basic Research(No.U1636104) NSFC-Joint Research Fund for Overseas Chinese Scholars and Scholars in Hong Kong and Macao(No.61628201) 

主　　题：Cryptography Broadcast encryption Provable security Revocation Designation Dual modes 

摘      要：In this paper our objective is to explore approaches of secure group-oriented communication with designation and revocation mechanisms simultaneously.We present a new scheme of Revocation-based broadcast encryption(RBBE) which is designed on Dan Boneh et al.’s scheme with the designation mechanism proposed in 2005. We combine two above-mentioned schemes into a new cryptosystem, called Dual-mode broadcast encryption(DMBE). Based on these work, we reach the following conclusions. We use the DMBE scheme as an example to show that it is feasible to construct a broadcast encryption scheme that supports designation and revocation mechanisms simultaneously. The cryptosystem with dual modes is more efficient than that with single mode over computational costs, and the performance is improved to at most O(「N/2」), where N is the total number of users in the system. We prove completely that both the RBBE scheme and the DMBE scheme are semantically secure against chosen plaintext attack with full collusion under the decisional bilinear Diffie-Hellman exponent assumption.