A Lightweight Secure Data Sharing Scheme for Mobile Cloud Computing

In mobile cloud computing the data security problem are becomes more grievous and intercept in the development of mobile clouds. In the mobile clouds there many research are done to improve the mobile cloud security. But many clouds are not supporting to the mobile services since mobile devices has limited power and computing resources. To find the solutions to mobile cloud applications with low computational overhead is important task. In this research paper, we proposed technique to solve this issues for mobile cloud computing. The normal cloud environment has an access control technology, but the proposed system changes the access control tree to use easily cloud environment with mobiles cloud. We discuss the proposed technique for mobile cloud computing. Attribute-based encryption (ABE) system is used for cloud storage security when multiple users are read the same file which is stored on the mobile cloud. For the personal storage system, we developed the modified cipher text-policy attribute based encryption system using flexible and expressive access policy in public domains. Our scheme supports multi-authority scenario, in which the authorities work independently without an authentication center. To decrease the user revocation cost, it also introduce the attribute description fields for implementing the efficient lazy revocation, it is an important issue in program based CP-ABE system. We try improving performance of system with respect to time.