Secure deduplication and integrity audit system based on convergent encryption for cloud storage |
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Authors: | Xiao-yong GUO An-min FU Bo-yu KUANG Wei-jia DING |
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Affiliation: | 1. School of Computer Science and Engineering,Nanjing University of Science and Technology,Nanjing 210094,China;2. Guizhou Provincial Key Laboratory of Public Big Data,GuiZhou University,Guiyang 550025,China |
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Abstract: | Cloud storage applications quickly become the best choice of the personal user and enterprise storage with its convenience,scalability and other advantages,secure deduplication and integrity auditing are key issues for cloud storage.At first,convergent key encapsulation/decoupling algorithm based on blind signature was set up,which could securely store key and enable it to deduplicate.Besides,a BLS signature algorithm based on convergence key was provided and use TTP to store public key and proxy audit which enables signature and pubic key deduplication and reduces client storage and computing overhead.Finally,cloud-based secure deduplicaion and integrity audit system was designed and implemented.It offered user with data privacy protection,deduplication authentication,audit authentication services and lowered client and cloud computation overhead. |
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Keywords: | deduplication convergent key key management proxy audit |
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