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Two-stage index-based central keyword-ranked searches over encrypted cloud data

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Acknowledgements

This work was supported by National Natural Science Foundation of China (Grant Nos. 61572001, 61872001, 61702005).

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Correspondence to Jie Cui.

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Zhong, H., Li, Z., Xu, Y. et al. Two-stage index-based central keyword-ranked searches over encrypted cloud data. Sci. China Inf. Sci. 63, 139105 (2020). https://doi.org/10.1007/s11432-018-9525-y

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