Storage requirements for visual data have been increasing in recent years, following the emergence of many new highly interactive multimedia services and applications for both personal and corporate use. This has been a key driving factor for the adoption of cloud-based data outsourcing solutions. However, outsourcing data storage to the Cloud also leads to new challenges that must be carefully addressed, especially regarding privacy. In this paper we propose a secure framework for outsourced privacy-preserving storage and retrieval in large image repositories. Our proposal is based on IES-CBIR, a novel Image Encryption Scheme that displays Content-Based Image Retrieval properties. Our solution enables both encrypted storage and searching using CBIR queries while preserving privacy. We have built a prototype of the proposed framework, formally analyzed and proven its security properties, and experimentally evaluated its performance and precision. Our results show that IES-CBIR is provably secure, allows more efficient operations than existing proposals, both in terms of time and space complexity, and enables more reliable practical application scenarios.
Privacy-Preserving Content-Based Image Retrieval in the Cloud
Bernardo Ferreira,João Rodrigues,J. Leitao,H. Domingos
Published 2014 in IEEE International Symposium on Reliable Distributed Systems
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- Publication year
2014
- Venue
IEEE International Symposium on Reliable Distributed Systems
- Publication date
2014-11-18
- Fields of study
Computer Science
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