A GROUP SHARING SCHEME BY EFFICIENT SINGLE KEY MANAGEMENT USING CRYPTOGRAPHIC TECHNIQUE.

Cloud computing is a recent paradigm that is creating high expectations about benefits such as the pay per use model and elasticity of resources. However, with this optimism come also concerns about security. In a public cloud, the user’s data storage and processing is no longer done inside its premises, but in data centers owned and administrated by the cloud provider. The system is proposed as novel secure group sharing framework for public cloud, which can effectively take advantage of the Cloud Servers’ help but have no sensitive data being exposed to attackers and the cloud provider. Extensive security and performance analysis shows that or proposed scheme is highly efficient and satisfies the security requirements for public cloud based secure group sharing.