The Research Of Data Reliability And Security Based On SecCSIE And AONT-RS Scheme In Cloud Storage

With the development of cloud storage, more and more users submitdata to the cloud, in order to reduce their storage and maintenance costs.However, data transferred from the client to the self-government server incloud storage is facing the problem of data reliability and security.Therefore, to construct a highly efficient data solution to enhance thereliability and security of user data in the cloud storage is urgent. Themain work of this paper is as follows:First, an intensive study of the existing data reliability and securitysolutions is conducted. On the basis of intensive study on thecharacteristics of cloud storage system, current data reliability andsecurity solutions are classified and compared, and then their advantagesand disadvantages are illustrated.Second, the client lost the control of data security and reliability aftertransferred the data to the cloud. To solve this problem, a solution whichbased on SecCSIE architecture is proposed in this paper. The solution adds a proxy server between the client and the cloud. The proxy server allowsuser to process data to enhance the control of data security and reliabilitybefore transferring the data to the cloud. In addition, in order to reduce theadverse effects of cloud storage speed brought by the proxy server, amethod is proposed to classify data according to the level of data securityand the state of the proxy server, and only process the necessary data.Third, by using AONT-RS scheme in SecCSIE architecture, the datacan be processed by AONT-RS scheme to achieve high reliability andsecurity before transferred from the client to the cloud. AONT-RS schemecombine AONT conversion and Reed-Solomon coding algorithm.AONT-RS scheme first use a random key to encrypt data, and then thehash value of the ciphertext and the key are calculated by XOR, and thecombination of XOR value and the ciphertext will be decentralized tostore on the self-government server in cloud storage. AONT conversionuses a random key, so it can void additional key management.Reed-Solomon coding achieve the reliability of the data in a fasterencoding speed. AONT-RS scheme can get a good balance between coding performance and security. The implementation of AONT-RS scheme isproposed in this paper. A solution based on SecCSIE architecture andAONT-RS scheme to enhance data security and reliability is proposed too.Theoretical analysis and simulation experiments verified, the solution witha small amount of coding overhead, can eliminate the cost of keymanagement, and achieve highly data reliability and security.