@Article{jcs.2020.06313,
AUTHOR = {Lei Li, Chungen Xu, Xiaoling Yu, Bennian Dou, Cong Zuo},
TITLE = {Searchable Encryption with Access Control on Keywords in  Multi-User Setting},
JOURNAL = {Journal of Cyber Security},
VOLUME = {2},
YEAR = {2020},
NUMBER = {1},
PAGES = {9--23},
URL = {http://www.techscience.com/JCS/v2n1/39369},
ISSN = {2579-0064},
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.},
DOI = {10.32604/jcs.2020.06313}
}