Multi-user keyword search scheme for secure data sharing with fine-grained access control

Fangming Zhao, Takashi Nishide, Kouichi Sakurai

研究成果: Chapter in Book/Report/Conference proceedingConference contribution

50 被引用数 (Scopus)

抄録

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.

本文言語英語
ホスト出版物のタイトルInformation Security and Cryptology, ICISC 2011 - 14th International Conference, Revised Selected Papers
ページ406-418
ページ数13
DOI
出版ステータス出版済み - 8 13 2012
イベント14th International Conference on Information Security and Cryptology, ICISC 2011 - Seoul, 大韓民国
継続期間: 11 30 201112 2 2011

出版物シリーズ

名前Lecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics)
7259 LNCS
ISSN(印刷版)0302-9743
ISSN(電子版)1611-3349

その他

その他14th International Conference on Information Security and Cryptology, ICISC 2011
国/地域大韓民国
CitySeoul
Period11/30/1112/2/11

All Science Journal Classification (ASJC) codes

  • 理論的コンピュータサイエンス
  • コンピュータ サイエンス(全般)

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