Agent based framework for providing security to data storage in cloud

Cloud system framework must ensure appropriate security for data storages along with satisfied timing constrain and performance. Usually, data in cloud are very dynamic and different types of data demand different level of security. Hence, if different cloud data storages can be provided with different level of security, managing data will be more flexible and efficient; the performance of system will increase as well. Therefore, in order to ensure adequate security for different data storages in cloud, we have proposed a three tier security framework. We have analyzed the performance with respect to overhead for different security services such as confidentiality, integrity and authenticity and showed that data classification according to different level of security enhances the performance of the system that provides security services to the data in cloud.