Secure Cloud Storage Protocols with Data Dynamics Using Secure Network Coding Techniques
Binanda Sengupta, Akanksha Dixit, Sushmita Ruj

TL;DR
This paper introduces two novel secure cloud storage protocols, DSCS I and DSCS II, leveraging secure network coding techniques to ensure data integrity and security for dynamic and append-only data in cloud environments.
Contribution
It presents the first secure cloud storage protocols for dynamic data based on secure network coding, including a standard model protocol and an append-only data-specific protocol.
Findings
DSCS I is the first secure dynamic data cloud storage protocol using network coding.
DSCS II is optimized for append-only data, overcoming DSCS I limitations.
Prototype implementations demonstrate practical performance of both protocols.
Abstract
In the age of cloud computing, cloud users with limited storage can outsource their data to remote servers. These servers, in lieu of monetary benefits, offer retrievability of their clients' data at any point of time. Secure cloud storage protocols enable a client to check integrity of outsourced data. In this work, we explore the possibility of constructing a secure cloud storage for dynamic data by leveraging the algorithms involved in secure network coding. We show that some of the secure network coding schemes can be used to construct efficient secure cloud storage protocols for dynamic data, and we construct such a protocol (DSCS I) based on a secure network coding protocol. To the best of our knowledge, DSCS I is the first secure cloud storage protocol for dynamic data constructed using secure network coding techniques which is secure in the standard model. Although generic…
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