Privacy Preserving Repository for Social Networking Application across Cloud?

Using Cloud Storage, users can remotely store their data and enjoy the on-demand high quality applications and services from a shared pool of configurable computing resources, without the burden of local data storage and maintenance.Cloud computing has been envisioned as the de-facto solution to the rising storage costs of IT Enterprises.With cloud computing, it is necessary for data to be not only stored in the cloud, but also shared across multiple users. For this purpose many different data sharing techniques are developed in cloud environment.Privacy Preserving Repository for Securing Data across the Cloud is one of them. Cloud is offering different services to its users. Data sharing between two organizations is common in many application areas. The primary issue to be dealt with when talking about security in a cloud is protection of the data. The main purpose is to build up a privacy preserving repository where data sharing services can update and control the access and limit the usage of their shared data, instead of submitting data to central authorities, and, hence, the shared-disk database architecture will promote data sharing and privacy of data.