Paper Info
Title
Multi-user keyword search scheme for secure data sharing with fine-grained access control
Abstract
We consider the problem of searchable encryption scheme for the cryptographic cloud storage in such a way that it can be efficiently and privately executed under the multi-user setting. Searchable encryption schemes allow users to perform keyword searches on encrypted files to retrieve their interested data without decryption. All existing such schemes only consider the straightforward search approach where for searching one encrypted keyword, the cloud server must look round all encrypted files on the storage to compare that encrypted keyword to each keyword index. Since the file number can be very huge and the user may be unable to decrypt all files, that approach is not efficient and secure enough. In this paper, we first propose a keyword search scheme for the cryptographic cloud storage based on attribute-based cryptosystems. Our scheme presents a new keyword search notion: fine-grained access control aware keyword search. By narrowing the search scope to the user's decryptable files' group before executing the keyword search, our approach can both decrease information leakage from the query process and be more efficient than other existing schemes.
Year
DOI
Venue
2011
10.1007/978-3-642-31912-9_27
ICISC
Keywords
Field
DocType
fine-grained access control,searchable encryption scheme,multi-user keyword search scheme,keyword search,secure data,encrypted file,search scope,keyword search scheme,aware keyword search,cryptographic cloud storage,encrypted keyword,keyword index,new keyword search notion
Information leakage,Cryptography,Computer science,Data sharing,Cryptosystem,Encryption,Access control,Cloud storage,Database,Cloud computing
Conference
Citations 
PageRank 
References 
17
0.77
11
Authors
3
Name
Order
Citations
PageRank
Fangming Zhao1906.58
Takashi Nishide235727.86
Kouichi Sakurai31514213.71