A Novel Approach for Peer to Peer Authentication Protocol for Cloud Storage Security

摘要

Advancement in pervasive computing such as remote computer and remote services lead the development of cloud computing massively. These remote services include remote data storage which allows the client to store data remotely. Remote storage service is an optimal feature provided by the cloud vendors. However the data storage in cloud is separated regionally and stored in different data centers which in turn arises a huge security issue in terms of privacy. The integrity of data stored in multiple data centers is one among privacy issues. To overcome the integrity issues many cloud service providers use Third Party Auditor (TPA) to verify the client data. However most of the trusted TPAs are single verifier and fail to scale the integrity of data in different data center. However, multiple verifiers among TPAs are pruned to Man in the Cloud (MiTC) attacks and not efficient enough to verify and validate the integrity of data in different data centers. To overcome the above stated problem, a novel Peer to Peer (P2P) authentication protocol with Certificate Authority has been proposed. The efficacy of the proposed protocol is incorporating CA along with TPAs. The proposed protocol is experimentally tested in own Cloud, a cloud storage platform and validated using AVISPA tool. From the results it is clearly shown that the proposed protocol is robust enough to ensure the integrity of data stored in multiple data centers.