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Secure Deduplication of Encrypted Data: Refined Model and New Constructions

  • Jian LiuEmail author
  • Li Duan
  • Yong Li
  • N. Asokan
Conference paper
First Online:
Part of the Lecture Notes in Computer Science book series (LNCS, volume 10808)

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) which aims to reconcile this apparent contradiction is an active research topic. In this paper, we propose a formal security model for SDoE. 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.

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Notes

Acknowledgments

This work was supported in part by TEKES - the Finnish Funding Agency for Innovation (CloSer project, 3881/31/2016) and by Intel (Intel Collaborative Research Institute for Secure Computing, ICRI-SC).

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Copyright information

© Springer International Publishing AG, part of Springer Nature 2018

Authors and Affiliations

  1. 1.Aalto UniversityEspooFinland
  2. 2.Paderborn UniversityPaderbornGermany
  3. 3.Ruhr-University BochumBochumGermany

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