Paper 2017/1089

Secure Deduplication of Encrypted Data: Refined Model and New Constructions

Jian Liu, Li Duan, Yong Li, and N. Asokan

Abstract

Cloud providers tend to save storage via cross-user deduplication, while users who care about privacy tend to encrypt their files on client-side. Secure deduplication of encrypted data (SDoE) is an active research topic. In this paper, we propose a formal security model for this problem. We also propose two single-server SDoE protocols and prove their security in our model. We evaluate their deduplication effectiveness via simulations with realistic datasets.

Metadata
Available format(s)
PDF
Category
Cryptographic protocols
Publication info
Preprint. MINOR revision.
Keywords
applications
Contact author(s)
jian liu @ aalto fi
History
2018-02-01: revised
2017-11-10: received
See all versions
Short URL
https://ia.cr/2017/1089
License
Creative Commons Attribution
CC BY

BibTeX

@misc{cryptoeprint:2017/1089,
      author = {Jian Liu and Li Duan and Yong Li and N.  Asokan},
      title = {Secure Deduplication of Encrypted Data: Refined Model and New Constructions},
      howpublished = {Cryptology ePrint Archive, Paper 2017/1089},
      year = {2017},
      note = {\url{https://eprint.iacr.org/2017/1089}},
      url = {https://eprint.iacr.org/2017/1089}
}
Note: In order to protect the privacy of readers, eprint.iacr.org does not use cookies or embedded third party content.