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Proceedings Paper

Enabling search over encrypted multimedia databases
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Paper Abstract

Performing information retrieval tasks while preserving data confidentiality is a desirable capability when a database is stored on a server maintained by a third-party service provider. This paper addresses the problem of enabling content-based retrieval over encrypted multimedia databases. Search indexes, along with multimedia documents, are first encrypted by the content owner and then stored onto the server. Through jointly applying cryptographic techniques, such as order preserving encryption and randomized hash functions, with image processing and information retrieval techniques, secure indexing schemes are designed to provide both privacy protection and rank-ordered search capability. Retrieval results on an encrypted color image database and security analysis of the secure indexing schemes under different attack models show that data confidentiality can be preserved while retaining very good retrieval performance. This work has promising applications in secure multimedia management.

Paper Details

Date Published: 4 February 2009
PDF: 11 pages
Proc. SPIE 7254, Media Forensics and Security, 725418 (4 February 2009); doi: 10.1117/12.806980
Show Author Affiliations
Wenjun Lu, Univ. of Maryland, College Park (United States)
Ashwin Swaminathan, Univ. of Maryland, College Park (United States)
Avinash L. Varna, Univ. of Maryland, College Park (United States)
Min Wu, Univ. of Maryland, College Park (United States)

Published in SPIE Proceedings Vol. 7254:
Media Forensics and Security
Edward J. Delp III; Jana Dittmann; Nasir D. Memon; Ping Wah Wong, Editor(s)

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