TIME BASED SECURE DATA HANDLING IN PUBLIC CLOUD

Data sharing in the cloud faces many challenges on security and privacy. Cloud computing is preferred as it reduces cost for data management and its available resources. To protect data from third party cloud server, it is necessary to have an efficient data access control. There are many studies deals with fine grained data access control, but there is no proposed scheme for both access control and time-sensitive data with learning-based methods. Cipher text-Policy Attribute-based Encryption is used for data security in cloud. A time access control is necessary to handle time-sensitive data in public cloud storage. Apart from access control, it is also necessary to have user revocation for efficient access control. An effective solution is needed to let data owners upload the encrypted data using algorithm with time limit such that the intended users cannot access the data beyond the corresponding time. The data that are collected from the software agents will automatically determine the ideal behavior within the specific context in order to maximize the data owner's performance.