Abstract:Abstract-Cloud provides a flexible and convenient way for data sharing, and brings various benefits for both the individual and Organization. A user can directly outsource the shared data to the cloud server, since the data is not highly secured. Here we need to place some crypto graphical enhanced to access the shared data. we are using crypto graphical method called identity based encryption system for sharing the data but it is not static .That is when the user's authorization is expired there should be a m… Show more
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