Journal of Applied Sciences ›› 2017, Vol. 35 ›› Issue (5): 626-633.doi: 10.3969/j.issn.0255-8297.2017.05.008

• Selected Papers Presented at 2016 Congress of Computer Applications, China • Previous Articles     Next Articles

Low Overhead Broadcast Encryption with Personalized Message Based on Multilinear Maps

LÜ Li-qun, YANG Xiao-yuan, WANG Jing-jing, CHENG Lu   

  1. Department of Electronic Technology, Engineering College of CAPF, Xi'an 710086, China
  • Received:2016-10-02 Revised:2016-12-05 Online:2017-09-30 Published:2017-09-30

Abstract:

Current schemes of broadcast encryption with personalized message (BEPM) require exceedingly large parameters. To deal with the problem, a low-overhead BEPM scheme is constructed by comprehensively using broadcast encryption, key encapsulation, and characteristics of multilinear maps. The ciphertext and private key size of each user are constant, and the public key size is only in the order of O(lb N). The proposed scheme is also fully collusion resistant and can achieve chosen plaintext completely in the standard model. The scheme is safe and effective, and widely applicable in many felds such as pay TV.

Key words: broadcast encryption, multilinear map, low-overhead

CLC Number: