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CC06-A Lightweight Secure Data Sharing Scheme for Mobile Cloud Computing

ABSTRACT:

With the popularity of cloud computing, cell phone devices can store/retrieve personal information from anywhere at any time.Consequently, the information security issue in mobile cloud turns out to be increasingly severe and prevents the improvement of mobile cloud. There are substantial studies that have been directed to enhance the cloud security. Notwithstanding, the greater part of them are not relevant for mobile cloud since cell phones only have limited computing services and power. Arrangements with low computational overhead are in the extraordinary requirement for mobile cloud applications. In this project, we propose a lightweight information sharing schemes (LDSS) for portable distributed computing.

It embraces CP-ABE, an entrance control innovation utilized as a part of the ordinary cloud environment, but changes the structure of the access control tree to make it appropriate for mobile cloud conditions. LDSS moves a large portion of the computational intensive access control tree transformation in CP-ABE from mobile phones to external proxy servers. Furthermore, to diminish the client denial cost, it acquaints characteristic portrayal fields with actualizing sluggish renouncement, which is a prickly issue in program based CP-ABE systems. The test comes about to demonstrate that LDSS can successfully decrease overhead on the cell phone side when clients are sharing information in mobile cloud environment.

PROPOSED SYSTEM:

The main contributions of LDSS are as follows:(1) We outline a calculation called LDSS-CP-ABE in view of Attribute-Based Encryption (ABE) technique to offer efficient get to control over ciphertext. (2) We utilize proxy servers for encryption and decryption activities. In our approach, computationally intensive tasks in ABE are directed on proxy servers, which enormously diminish the computational overhead on customer side cell phones. Then, inLDSS-CP-ABE, with a specific end goal to keep up information protection, revulsion ascribe is likewise added to the entrance structure. The decryption key organization is adjusted with the goal that it can be sent to the security of the intermediary server. (3) We present languid re-encryption and description field of credits to decrease the disavowal overhead when dealing with the client repudiation issue. (4) Finally, we execute an information sharing prototype framework in light of LDSS.

The analyses demonstrate thatLDSS can significantly diminish the overhead on the customer side, which just presents an insignificant extra cost on the server side. Such an approach is useful to actualize realistic information sharing security conspire on mobile devices. The results also demonstrate that LDSS has better performance compared to the existing ABE based access control scheme over ciphertext.

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