Titlebook: Big Data and Security; Second International Yuan Tian,Tinghuai Ma,Muhammad Khurram Khan Conference proceedings 2021 Springer Nature Singapo

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https://doi.org/10.1007/978-3-031-28659-9 to the authentication center. In view of this situation, block chain technology is introduced and applied to all kinds of power service access application scenarios through research and development. A block-chain-based power universal service access gateway is developed and tested. The test shows t

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V. B. John M.Sc., C. Eng., M.I.M., M.I.M.M.ty of all SQL queries. While the fine-grained access control (FGAC) method in the DBMS shall meet the sanity attribute requirements. It means that the answer to the query obtained by this method under the FGAC shall conform to the answer without the FGAC. In this article, a new query modification al