Abstract
Nowadays the data and user information involved in the social network with the nature of high complexity. More and more service providers and users will share the data in the cloud servers. To keep the shared data confidential against untrusted third-party service providers, settle single point failure and solve performance bottlenecks of authorized center as will as secret key abuse of malicious users who disclose their own private key, we propose a multi-authority attribute-based encryption scheme which supports traceability and fine-grained revocation mechanism in social network. The scheme is based on traditional attribute based encryption, which can realize distributed access control and support complete fine-grained revocation mechanism. The security is proved in the standard model, which effectively solves the above problems.
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Acknowledgments
This work is supported by the National Natural Science Fundation of China under Grants No. 61632009 and the Science and Technology Project of Changsha under Grant No. kq1701089, and Fundamental Research Funds of Central South University under Grant No. 2017zzts713.
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Li, Y., Qi, F., Tang, Z. (2017). Traceable and Complete Fine-Grained Revocable Multi-authority Attribute-Based Encryption Scheme in Social Network. In: Wang, G., Atiquzzaman, M., Yan, Z., Choo, KK. (eds) Security, Privacy, and Anonymity in Computation, Communication, and Storage. SpaCCS 2017. Lecture Notes in Computer Science(), vol 10656. Springer, Cham. https://doi.org/10.1007/978-3-319-72389-1_8
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DOI: https://doi.org/10.1007/978-3-319-72389-1_8
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