A novel integrity scheme for secure cloud storage

Cloud computing is a promising technology designed to provide computing services over the internet. It is a model which enables the user to access the computing resources with minimal management effort and no service provider interaction. Cloud computing provides rapid provisioning of resources to the user by pooling the resources together and the user can access the resources on demand. The main threat to cloud computing is data security and integrity since the public cloud is connected to internet and many users can access the resources at the same time. This paper aims at providing various security issues in cloud computing. It also aims at developing a data integrity proof for the data stored in the cloud server. Cloud storage move the user´s data to big data centers, which are remotely located, on which user does not have any control. It may not be fully trustworthy because client doesn´t have copy of all stored data. However, this unique feature of the cloud poses many new security challenges which need to be clearly understood and resolved.