Abstract
Nowadays more and more people or enterprises prefer to outsource their data to the remote cloud servers. However how to efficiently and flexibly share the outsourced data storage secure is a very challenge problem, the cryptographic primitive of functional encryption is such a technique to solve this problem. In this paper, we show several new functional encryption schemes, which are more efficient than the original schemes, by using a novel technique. This technique maybe also has potential applications in other related schemes. Finally we conclude our paper with many interesting open problems.
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Acknowledgements
The first author and the fourth author are the corresponding authors. This work is supported by National Cryptography Development Fund of China Under Grants No. MMJJ20170112, National Natural Science Foundation of China (Grant Nos. 61772550, 61572521, U1636114, 61402531), National Key Research and Development Program of China Under Grants No. 2017YFB0802000, Natural Science Basic Research Plan in Shaanxi Province of china (Grant Nos. 2018JM6028, 2016JQ6037) and Guangxi Key Laboratory of Cryptography and Information Security (No. GCIS201610), Public Welfare Technology Application Projects of Zhejiang Province under Grant (2016C31072), Research Project of Educational Reform in Zhejiang (jg20160053).
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Wang, X.A., Zhang, J., Wu, G., Yu, C. (2019). Improved Functional Encryption Schemes by Using Novel Techniques. In: Xhafa, F., Barolli, L., Greguš, M. (eds) Advances in Intelligent Networking and Collaborative Systems. INCoS 2018. Lecture Notes on Data Engineering and Communications Technologies, vol 23. Springer, Cham. https://doi.org/10.1007/978-3-319-98557-2_39
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DOI: https://doi.org/10.1007/978-3-319-98557-2_39
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