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학술대회 Privacy-Preserving Cross-User Source-Based Data Deduplication in Cloud Storage
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저자
이승광, 최두호
발행일
201210
출처
International Conference on Information and Communication Technology Convergence (ICTC) 2012, pp.329-330
DOI
https://dx.doi.org/10.1109/ICTC.2012.6386851
협약과제
12PG1300, 부채널 공격 방지 원천 기술 및 안전성 검증 기술개발, 최두호
초록
Cloud storage services possibly store only a single copy of redundant data to save disk space and provide links to that copy rather storing other actual copies of data. This is called deduplication. If deduplication is performed across different accounts at each client side, this is classified into cross-user source-based deduplication. However, cross-user source-based deduplication can server as a side-channel of breaching user's privacy. To protect user's privacy, Harnik et al. proposed a randomized solution for cross-user source-based deduplication, user's privacy is, however, still at risk with a high probability. In this paper, we propose a new cross-user source-based deduplication providing dramatically enhanced security. © 2012 IEEE.