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论文作者:www.51lunwen.org论文属性:作业 Assignment登出时间:2017-06-21编辑:cinq点击率:1308

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Abstract 摘要 — Cloud computing is an information technology where user can remotely store their outsourced data so as enjoy on demand high quality application and services from configurable resources. Using information data exchange, users can be worried from the load of local data storage and protection. Thus, allowing freely available auditability for cloud data storage is more importance so that user gives change to check data integrity through external audit party. In the direction of securely establish efficient third party auditor (TPA), which has next two primary requirements to be met: 1) TPA should able to audit outsourced data without demanding local copy of user outsourced data ; 2) TPA process should not bring in new threats towards user data privacy. To achieve these goals this system will provide a solution that uses Kerberos as a Third Party Auditor/ Authenticator, RSA algorithm for secure communication, MD5 algorithm is used to verify data integrity, Data centers is used for storing of data on cloud in effective manner with secured environment and provides Multilevel Security to Database .

Keywords 关键词 — Public Auditing, Cloud Computing, Third Party Auditor

I. Introduction 简介
CLOUD computing is self-service demanding, ever-present network access, and location independent resource brings together, rapid resource flexibility. As cloud computing makes more attractive yet, it creates new and challenging security threats just before user outsourced data [1].

Consider a cloud data storage service having three different entities, as shown in Fig.1: cloud user, in which huge data files to be saved in the cloud; third-party auditor, which has information and facility that cloud users do not have and which have faith to access the cloud storage service consistency on behalf of the user request ; cloud server, which is handled by the cloud service provider and provide data storage service, large amount of storage space and computation resources [1],[4].

To completely guarantee on the data integrity and save the cloud user’s working out resources as well as online load, it is more significant to allow public auditing service for cloud data storage, As a result users may have option to an independent third-party auditor (TPA) who is expertise and having the capabilities that user do not, which periodically check the integrity of all data stored in cloud on behalf of user’s and which ensure their storage correctness in cloud [1], [3].

The rest of paper is organised as follows: section 2 introduce literature review in which it provide different technique to solve problem related cloud storage security but they have some drawback which can overcame by proposed system which is explain in section 3 that means it provide efficient solution against problem definition and literature review through various cryptography algorithms and third party auditor. Finally section 4 gives the concluding remark of whole paper and on the literature review.

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