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COOPERATIVE PROVABLE DATA POSSESSION FOR INTEGRITY VERIFICATION IN MULTI-CLOUD STORAGE

Platform : java

IEEE Projects Years : 2012 - 13

COOPERATIVE PROVABLE DATA POSSESSION FOR INTEGRITY VERIFICATION IN MULTI-CLOUD STORAGE

ABSTRACT:

Provable data possession (PDP) is a technique for ensuring the integrity of data in storage outsourcing. In this paper, we address the construction of an efficient PDP scheme for distributed cloud storage to support the scalability of service and data migration, 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 homomorphic verifiable response and hash index hierarchy. We prove the security of our scheme based on multi-prover zero-knowledge proof system, which can satisfy completeness, knowledge soundness, and zero-knowledge properties. In addition, we articulate performance optimization mechanisms for our scheme, and in particular present an efficient method for selecting optimal parameter values to minimize the computation costs of clients and storage service providers. Our experiments show that our solution introduces lower computation and communication overheads in comparison with non-cooperative approaches.

EXISTING SYSTEM:

There exist various tools and technologies for multi cloud, such as Platform VM Orchestrator, VMwarevSphere, and Ovirt. These tools help cloud providers construct a distributed cloud storage platform 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       to provide security techniques for managing their storage services.       

 

 

 

 

 

PROPOSED SYSTEM:

To check the availability and integrity of outsourced data in cloud storages, researchers have proposed two basic approaches called Provable Data Possession and Proofs of Retrievability .Ateniese et al. first proposed the PDP model for ensuring possession of files on untrusted storages and provided an RSA-based scheme for a static case that achieves the communication cost. They also proposed a publicly verifiable version, which allows anyone, not just the owner, to challenge the server for data possession..They proposed a lightweight PDP scheme based on cryptographic hash function and symmetric key encryption, but the servers can deceive the owners by using previous metadata or responses due to the lack of randomness in the challenges. The numbers of updates and challenges are limited and fixed in advance and users cannot perform block insertions anywhere.

SYSTEM CONFIGURATION:-

H/W SYSTEM CONFIGURATION:-

Processor                                 -    Pentium IV

Speed                                      -    1.1 GHz

RAM                                       -    256 MB (min)

Hard Disk                               -   20 GB

Key Board                              -    Standard Windows Keyboard

Mouse                                     -    Two or Three Button Mouse

Monitor                                   -    SVGA

 S/W SYSTEM CONFIGURATION:-

Operating System                   :           Windows95/98/2000/XP

Application Server                  :           Tomcat5.0/6.X                                               

Front End                                :           HTML, Java, Jsp

 Scripts                                    :           JavaScript.

Server side Script                    :   Java Server Pages.

Database                                             :   Mysql

Database Connectivity            :   JDBC.


MODULE DESCRIPTION:

MULTI CLOUD STORAGE:

Distributed computing is used to refer to any large collaboration in which many individual personal computer owners allow some of their computer's processing time to be put at the service of a large problem. In our system the each cloud admin consist of data blocks. The cloud user uploads the data into multi cloud. cloud computing environment is constructed based on open architectures and interfaces, it has the capability to incorporate multiple internal and/or external cloud services together to provide high interoperability. We call such a distributed cloud environment as a multi-Cloud .A multi-cloud allows clients to easily access his/her resources remotely through interfaces.

COOPERATIVE PDP:

Cooperative PDP (CPDP) schemes adopting zero-knowledge property and     three-layered index hierarchy, respectively. In particular efficient method for selecting the optimal number of sectors in each block to minimize the computation costs of clients and storage service providers. Cooperative PDP (CPDP) scheme without compromising data privacy based on modern cryptographic techniques

DATA INTEGRITY:

Data Integrity is very important in database operations in particular and Data warehousing and Business intelligence in general. Because Data Integrity ensured that data is of high quality, correct, consistent and accessible.

THIRD PARTY AUDITOR:

Trusted Third Party (TTP) whois trusted to store verification parameters and offerpublic query services for these parameters. In our system the Trusted Third Party, view the user data blocks and uploaded to the distributed cloud. In distributed cloud environment each cloud has user data blocks. If any odification tried by cloud owner a alert is send to the Trused Third Party.

 

 

 

 

CLOUD USER:

The Cloud User who has a large amount of data to be stored in multiple clouds and have the permissions to access and manipulate stored data. The User’s Data is converted into data blocks. The data blocks are uploaded to the cloud. The TPA views the data blocks and Uploaded in multi cloud. The user can update the uploaded data. If the user wants to download their files, the data’s in multi cloud is integrated and downloaded.



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