A Survey on Integrity Verification in Cloud Computing

Cloud computing has been popular as the IT architectures. Cloud service providers offers many services based on cloud computing. Cloud storage service is one of the cloud services which can provide a huge storage space to solve the bottleneck of the storage space of local end users. Here the Cloud server allows the users to store their data on cloud without worrying about correctness and integrity of data. Cloud data storage has many advantages over local data storage. Users can upload their data on cloud and can access those data anytime anywhere without any additional burden. The Users need not to worry about storage and maintenance of cloud data. However, cloud storage service may have data security because the user’s data is stored at the untrusted servers instead of their own storage. In this paper, we will focus on data integrity which is very important cloud storage service. Public auditability is a model of outsourcing data integrity verification, which can achieve efficiency and security. Therefore, we survey the previous researches of data integrity based on public auditability to analyze security and efficiency. In this paper we propose a new idea for privacy preserving public auditing for data storage security in cloud computing using AES algorithm and Secure Hash Algorithm. It will also support data dynamics where the users can insert, delete and update their data.