Heterogeneous Data Storage Management with Deduplication in Cloud Computing

Abstract

Abstract-Cloud storage as one of the most important services of cloud computing helps cloud users break the bottleneck of restricted resources and expand their storage without upgrading their devices. In order to guarantee the security and privacy of cloud users, data are always outsourced in an encrypted form. However, encrypted data could incur much waste of cloud storage and complicate data sharing among authorized users. We are still facing challenges on encrypted data storage and management with deduplication. Traditional deduplication schemes always focus on specific application scenarios, in which the deduplication is completely controlled by either data owners or cloud servers. They cannot flexibly satisfy various demands of data owners according to the level of data sensitivity. In this paper, we propose a heterogeneous data storage management scheme, which flexibly offers both deduplication management and access control at the same time across multiple Cloud Service Providers (CSPs). We evaluate its performance with security analysis, comparison and implementation. The results show its security, effectiveness and efficiency towards potential practical usage.

A Cloud Storage Monitoring System using Deduplication and File Access Pattern

“…Suppose if primary system fails, backup system needs to take over. It increases the data availability features for the users [9]. At any point the data can be retrieved from any combination of fragments which can decompose the original structure.…”

Game Theoretical Analysis on Encrypted Cloud Data Deduplication

“…Searchable encryption [6] helps duplication check over encrypted data. Thus far, substantial encrypted cloud-data deduplication schemes were proposed based on convergent encryption [7]- [10], proofs-of-ownership (PoW) [1], [11]- [13], secret sharing [14], [15], password-authenticated key exchange (PAKE) [16], keywords search [10] and data ownership challenge with Proxy Re-Encryption (PRE) [1], [17]. Most explored encrypted data deduplication schemes support duplication check before uploading data, which significantly save network bandwidth.…”

Game Theoretical Study on a Client-Controlled Deduplication Scheme

“…A data user can easily access its data in the cloud at any time and everywhere. Significant efforts have been made to securely and efficiently outsource data to the cloud in recent years, ranging from protecting data security and privacy ( Chu et al, 2014;Wan et al, 2012;Wang et al, 2010a;Wei et al, 2014 ), reducing copyright risks ( Hwang et al, 2009;Hwang and Li, 2010 ), controlling data access ( Ruj et al, 2014;Wang et al, 2010b;Yan et al, 2017a;Yang and Jia, 2014;Zhou et al, 2013 ), to encrypted data deduplication ( Harnik et al, 2010;Li et al, 2014;Liu et al, 2015;Xu et al, 2009;Yan et al, 2016a;2016b;2017b ).…”

“…However, almost all existing deduplication schemes ( Harnik et al, 2010;Li et al, 2014;Liu et al, 2015;Xu et al, 2009;Yan et al, 2016a;2016b;2017b ) are designed and analyzed only from technological perspectives. Few effort s in the literature were made to investigate the acceptability of deduplication schemes by all stakeholders (e.g., data users and CSPs).…”

“…Harnik et al (2010) introduced a simple mechanism that turns off deduplication artificially to ensure privacy preservation. A flexible deduplication scheme, which adaptively selects stakeholders control data deduplication according to the data protection policies of data owners, was introduced in Yan et al (2017b) . However, these methods either change C-DEDU into S-DEDU to avoid the online requirement or are not intelligent.…”