NDLI: Secure Cloud Storage Service with an Efficient DOKS Protocol

Content Provider	IEEE Xplore Digital Library
Author	ZhengTao Jiang Ling Liu
Copyright Year	2013
Description	Author affiliation: Georgia Inst. of Technol., Atlanta, GA, USA (Ling Liu) \|\| Commun. Univ. of China, Beijing, China (ZhengTao Jiang)
Abstract	Storage services based on public clouds provide customers with elastic storage and on-demand accessibility. However, moving data to remote cloud storage also raises privacy concerns. Cryptographic cloud storage and search over encrypted data have attracted attentions from both industry and academics. In this paper, we present a new approach to constructing efficient oblivious keyword search (OKS) protocol, which permits fast search (i.e., sub-linear time) and relatively short ciphertext, while providing provably strong privacy for both users and cloud storage service providers. Previous OKS protocols have ciphertext size linear in the number of keywords, which consume much storage space and relatively long searching time. We formally define a Disjunctively Oblivious Keyword Search (DOKS) protocol realizing oblivious keyword search with the ciphertext size constant in size of keywords, which is significantly less than that of previous OKS protocols. Our approach improves both the privacy and efficiency of existing OKS protocols. With DOKS, adversary cannot distinguish two search keywords submitted by users, and cannot know the relations between ciphertext of documents and search keywords. A search keyword cannot be reused by adversaries. Users can get the matching documents without revealing statistical information on search keywords.
Starting Page	208
Ending Page	215
File Size	209140
Page Count	8
File Format	PDF
e-ISBN	9780769550268
DOI	10.1109/SCC.2013.37
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2013-06-28
Publisher Place	USA
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Protocols Encryption Databases Cloud computing Data privacy DOKS Cloud storage searchable encryption privacy provable security oblivious keyword search
Content Type	Text
Resource Type	Article

Sl.	Authority	Responsibilities	Communication Details
1	Ministry of Education (GoI), Department of Higher Education	Sanctioning Authority	https://www.education.gov.in/ict-initiatives
2	Indian Institute of Technology Kharagpur	Host Institute of the Project: The host institute of the project is responsible for providing infrastructure support and hosting the project	https://www.iitkgp.ac.in
3	National Digital Library of India Office, Indian Institute of Technology Kharagpur	The administrative and infrastructural headquarters of the project	Dr. B. Sutradhar bsutra@ndl.gov.in
4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
5	Website/Portal (Helpdesk)	Queries regarding NDLI and its services	support@ndl.gov.in
6	Contents and Copyright Issues	Queries related to content curation and copyright issues	content@ndl.gov.in
7	National Digital Library of India Club (NDLI Club)	Queries related to NDLI Club formation, support, user awareness program, seminar/symposium, collaboration, social media, promotion, and outreach	clubsupport@ndl.gov.in
8	Digital Preservation Centre (DPC)	Assistance with digitizing and archiving copyright-free printed books	dpc@ndl.gov.in
9	IDR Setup or Support	Queries related to establishment and support of Institutional Digital Repository (IDR) and IDR workshops	idr@ndl.gov.in

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