Consistency and Reliability of Services in Cloud Environment

摘要

Cloud storage is a fastest developing area of study under the veil of cloud computing. When the mounting population using computer techniques for day to day life, facing the galloping economic crisis, cloud storage has a hard treading field among the users where users of cloud longing to obtain reliability and consistency economically. Whenever the users face a serious of disturbances in using data distributed through various servers, they require stability not only in consistency but in reliability of services too. The most pestering problem of using the replication technique in cloud for obtaining reliability and consistency is highly expensive. Hence in this study an attempt is made to focus how to obtain consistency and reliability as a service in providing hefty data cloud between the cloud provider and the users. A two level auditing model has been used to experiment to verify the veracity of the consistency of the data between a data cloud and an audit cloud as promised by the data cloud provider. The Advanced Encryption Standard (AES) algorithm a symmetric key encryption/decryption algorithm is used to receive the secret key.