An Efficient Searchable Symmetric Encryption Scheme for Smart Grid Data

In recent years, the combination of power systems and IoT (Internet things) has become a new generation smart grid. Cloud computing is used to provide storage services for grid data due its convenience. Generally, searchable encryption technology considered feasible solution guarantee security support search function. Li proposed symmetric scheme based on pseudo-random function in 2019. this paper, we propose more efficient secure data. The improves efficiency by introducing Bloom filter changing structure index. Specifically, first narrow scope then perform second search, which eliminates false positive caused introduction filter. At same time, assign an ID each piece (a row data) tabular dataset, store hash value (adding salt) index, results are returned server contain none information, security. Experiments real show that our 52% than previous scheme.