A Hybrid Cloud Approach For Secure Authorized Deduplication

Objective:

To implement a prototype of the proposed authorized duplicate check and evaluate the overhead of the prototype. The overhead is minimal compared to the normal convergent encryption and file upload operations.

Synopsis:

Data deduplication is one of important data compression techniques for eliminating duplicate copies of repeating data, and has been widely used in cloud storage to reduce the amount of storage space and save bandwidth. To protect the confidentiality of sensitive data while supporting deduplication, the convergent encryption technique has been proposed to encrypt the data before outsourcing. To better protect data security, this paper makes the first attempt to formally address the problem of authorized data deduplication. Different from traditional deduplication systems, the differential privileges of users are further considered in duplicate check besides the data itself.

The proposed system present several new deduplication constructions supporting authorized duplicate check in hybrid cloud architecture. Security analysis demonstrates that our scheme is secure in terms of the definitions specified in the proposed security model. As a proof of concept, we implement a prototype of our proposed authorized duplicate check scheme and conduct tested experiments using our prototype. We show that our proposed authorized duplicate check scheme incurs minimal overhead compared to normal operations.

Existing System:

           Data deduplication is one of important data compression techniques for eliminating duplicate copies of repeating data, and has been widely used in cloud storage to reduce the amount of storage space and save bandwidth. To protect the confidentiality of sensitive data while supporting deduplication, Cloud computing provides seemingly unlimited “virtualized” resources to users as services across the whole Internet, while hiding platform and implementation details. Today’s cloud service providers offer both highly available storage and massively parallel computing resources at relatively low costs. As cloud computingbecomes prevalent, an increasing amount of data is being stored in the cloud and shared by users with specified privileges, which define the access rights of the stored data.

Limitation:

• One critical challenge of cloud storage services is the management of the ever-increasing volume of data.

Proposed System:

The convergent encryption technique has been proposed to encrypt the data before outsourcing. To better protect data security, this paper makes the first attempt to formally address the problem of authorized data deduplication. Different from traditional deduplication systems, the differential privileges of users are further considered in duplicate check besides the data itself. We also present several new deduplication constructions supporting authorized duplicate check in hybridcloud architecture.

Security analysis demonstrates that our scheme is secure in terms of the definitions specified in the proposed security model. As a proof of concept, we implement a prototype of our proposed authorized duplicate check scheme and conduct test bed experiments using our prototype. We show that our proposed authorized duplicate check scheme incurs minimal overhead compared to normal operations.

Advantages:

• One critical challenge of cloud storage services is the management of the ever-increasing volume of data.

 System  Architecture:

Hybrid Cloud Approach For Secure Authorized Deduplication

Hardware And Software Specification:

Software Requirement:                     

1. Language –        Java(JDK 1.7)
2. OS –        Windows 7 32bit
3. MySql Server
4. NetBeans IDE 7.1
5. Apache Tomcat 7.0

 Hardware Requirement:        :

1. GB RAM

2.80 GB Hard Disk

3.Above 2GHz Processor

4.Data Card