Framework to Improve Data Integrity in Multi Cloud Environment
Anandita SinghThakur, P. K. Gupta · International Journal of Computer Applications · 2014
Cloud computing is a network based environment where resources, information and software's are shared and provided to the users according to their demands.Though cloud computing is being widely used in various fields, it has certain drawbacks.Security issue is a concern in cloud computing.The confidentiality and data integrity should be guaranteed to the user who is putting their data over the cloud.This paper proposes a framework that would provide integrity of data of multiple users through Third Party Auditor (TPA) and proposes various algorithms to implement this framework.In the proposed framework concept of multi cloud has been used to provide best cost optimization for various requirements of user.The framework is also divided into three platforms namely: platinum for sensitive data storage, gold for less level of security and silver for least level of security on the data.Finally we have implemented different algorithms for the various platforms in the proposed framework.In the obtained results, we can find that the proposed framework is easy to implement and provides better performance by using the traditional algorithms of network security over the various issues of cloud computing. General Terms• CDIBA -Cloud data integrity backup agent defines set of rules for backup of cloud data in "cloud zone" using logical grouping of cloud components.• CSPA -Cloud service provider agent provides security service tasks according to Service Level Agreements.• CSP -Cloud service provider are the ones who have the resources and are expert in building and managing the distributed servers.• CS -Cloud servers are managed by the cloud service providers.• DSA -Digital signature algorithm.The authenticity of a digital message or document is checked using DSA.• i.e. -in other words • I/O -input and output • MAS -Multi agent system.It is a technique where several agents communicate with each other.• PDP -Prove able data possession.It checks that a file which consists of a collection of n blocks is retained by the outsourced storage site.• POR -Proof of retrieve ability.It detects data corruption and achieves guarantee of file retrieve ability.• QOS -Quality of service.It defines the degree to which a provided activity promotes customer satisfaction.• RSA -Rivest, Shamir and Adleman.The most commonly used algorithm for encryption and authentication is RSA algorithm which is included as part of the Web browsers.• TPA -Third party auditor.It verifies over the cloud server.