Open Access
ARTICLE
Searchable Encryption with Access Control on Keywords in Multi-User Setting
Lei Li1, Chungen Xu1, *, Xiaoling Yu1, Bennian Dou1, Cong Zuo2
1 School of Science, Nanjing University of Science and Technology, Nanjing, 210094, China.
2 Faculty of Information Technology, Monash University, Clayton, VIC 3800, Australia.
* Corresponding Author: Chungen Xu. Email:
Journal of Cyber Security 2020, 2(1), 9-23. https://doi.org/10.32604/jcs.2020.06313
Abstract
Searchable encryption technology makes it convenient to search encrypted
data with keywords for people. A data owner shared his data with other users on the
cloud server. For security, it is necessary for him to build a fine-grained and flexible
access control mechanism. The main idea of this paper is to let the owner classify his data
and then authorizes others according to categories. The cloud server maintains a
permission matrix, which will be used to verify whether a trapdoor is valid or not. In this
way we can achieve access control and narrow the search range at the same time. We
prove that our scheme can achieve index and trapdoor indistinguishability under chosen
keywords attack security in the random oracles.
Keywords
Cite This Article
L. Li, C. Xu, X. Yu, B. Dou and C. Zuo, "Searchable encryption with access control on keywords in multi-user setting,"
Journal of Cyber Security, vol. 2, no.1, pp. 9–23, 2020.