04-09-2014, 03:47 PM
A Novel Application for Integrity Verification in
Multi-Cloud Storage by using Provable data
possession
A Novel Application.pdf (Size: 433.93 KB / Downloads: 35)
ABSTRACT
Now a days for every data transfer between any sites we are using cloud data transfer instead of distributed data transfer. so we
must concentrate on security. Provable data possession (PDP) is a technique which used for integrity of data in storage
outsourcing. In this paper,we present a schema for the construction of an efficient PDP scheme for distributed cloud storage to
support the scalability of service and datamigration, in which we consider the existence of multiple cloud service providers to
cooperatively store and maintain the clients’ data. We present a cooperative PDP (CPDP) scheme based on verifiable response
using cryptographic and hash index hierarchy. The security of our scheme based on multi-prover, zero-knowledge proof system,
which can satisfy completeness,knowledge soundness, and zero-knowledge properties. We are using AES method for
cryptographic. Our experiments show that our solution introduces lower computation and communicationoverheads in
comparison with non-cooperative approaches. IndexTerms: Storage Security, Provable Data Possession, Zero-knowledge,
cryptography, Multiple Cloud, CooperativeProvable Data Possession, encryption, AES algorithm.
RELATED WORK
This paper mostly related to Multi Cloud Integrity using Provable data possession. These tools help cloud providers
construct a distributed cloud storage platform (DCSP) for managing clients’ data. However, if such an important platform
is vulnerable to security attacks, it would bring irretrievable losses to the clients. For example, the confidential data in an
enterprise may be illegally accessed through a remote interface provided by a multi-cloud, or relevant data and archives
may be lost or tampered with when they are stored into an uncertain storage pool outside the enterprise. Therefore, it is
indispensable for cloud service providers (CSPs) to provide security techniques for managing their storage services.
Provable data possession (PDP) [2] is such a probabilistic prooftechnique for a storage provider to prove the integrityand
ownership of clients’ data without downloadingdata. The proof-checking without downloading makes it especially
important for large-size files andfolders (typically including many clients’ files) tocheck whether these data have been
tampered withor deleted without downloading the latest version of data. Thus, it is able to replace traditional hash
andsignature functions in storage outsourcing. VariousPDP schemes have been recently proposed, such asScalable PDP
[4] and Dynamic PDP [5]. However,these schemes mainly focus on PDP issues at un-trustedservers in a single cloud
storage provider andare not suitable for a multi-cloud environment
CONCLUSIONS
In this paper, we presented the construction of an efficient PDP scheme for distributed cloud storage Based on verifiable
response and hash index hierarchy, we have proposed a cooperative PDP scheme to support dynamic scalability on
multiple storage servers. We also showed that our schemeprovided all security properties required by zeroknowledge
interactive proof system, so that it canresist various attacks. Our solution can be treated as a new candidate for data
integrity verification inoutsourcing data storage systems.
For security purpose we are using AES algorithm for data transfer.