@inproceedings{b6e784b9c44f47ab948cf835d7da6636,
title = "Secure and efficient deduplication over encrypted data with dynamic updates in cloud storage",
abstract = "Cloud service providers adopt a deduplication technique to minimize resource utility costs. However, it is one of the most challenging issues to manage the outsourced data in a storage-efficient way when users encrypt data for preserving privacy and frequently update it. When the data is updated, file-level deduplication makes entire copy of updated file although there are small modifications. Block-level deduplication solves this problem, but it requires metadata larger than the outsourced blocks. To address this problem, we propose a hybrid deduplication scheme that minimizes storage overhead. Our scheme performs filelevel deduplication along with isolation of only updated blocks with augmented metadata. The analysis results show that our scheme minimizes storage costs while guaranteeing secure update with efficient verification.",
keywords = "Block-level deduplication, Cloud storage, Deduplication over encrypted data, File-level deduplication, Storage overhead",
author = "Dongyoung Koo and Junbeom Hur and Hyunsoo Yoon",
note = "Funding Information: This work was supported by the National Research Foundation of Korea (NRF) grant funded by the Korea government (MEST) (No. 2011-0016584 and No. 2013R1A2A2A01005559). Publisher Copyright: {\textcopyright} Springer Science+Business Media Dordrecht 2014.; 2014 FTRA International Symposium on Frontier and Innovation in Future Computing and Communications, FCC 2014 ; Conference date: 13-01-2014 Through 16-01-2014",
year = "2014",
doi = "10.1007/978-94-017-8798-7_28",
language = "English",
series = "Lecture Notes in Electrical Engineering",
publisher = "Springer Verlag",
pages = "229--235",
editor = "Albert Zomaya and Park, {James J.} and Hwa-Young Jeong and Mohammad Obaidat",
booktitle = "Frontier and Innovation in Future Computing and Communications",
}