Title
Multi-user searchable encryption with a designated server.
Abstract
Multi-user searchable encryption (MSE) enables authorized users to search over encrypted documents in the cloud. Generally, security problems in existing MSE schemes are solved as follows: (1) transmitting authority values and search tokens through secure channels to resist keyword guessing attack; (2) involving a trusted third party (TTP) to manage users and (3) relying on online users to distribute the decryption keys. However, these methods result in extra overhead and heavily restrict the scalability of the systems. In this paper, we propose a secure channel-free and TTP-free MSE scheme. It is secure against keyword guessing attack by introducing a designated server. And it achieves fine-grained access control to grant and revoke the privileges of users without TTP. More specifically, each document is encrypted with a unique and independent key, where the key distribution is integrated with user authorization and search procedures. We provide a concrete construction of the scheme and give formal proofs of its security in the random oracle model.
Year
DOI
Venue
2017
10.1007/s12243-017-0571-x
Annales des Télécommunications
Keywords
Field
DocType
Searchable encryption, Designated server, Fine-grained access control, Keyword guessing attack
Key distribution,Trusted third party,Computer science,Computer security,Random oracle,Encryption,Access control,Cloud computing,Scalability,Multi-user
Journal
Volume
Issue
ISSN
72
9-10
1958-9395
Citations 
PageRank 
References 
1
0.36
19
Authors
4
Name
Order
Citations
PageRank
Zhen Li139790.65
Minghao Zhao2122.50
Han Jiang31412.05
Qiuliang Xu415742.71