Database information leakage detection system based on fuzzy entropy algorithm

The invention relates to the technical field of data processing, and further relates to a database information leakage detection system based on a fuzzy entropy algorithm. The system comprises a log data acquisition part, a fuzzy entropy calculation part and a leakage detection part, the log data acquisition part is used for acquiring database logs, defining a time window and extracting a log feature data set of the database logs in the time window; the fuzzy entropy calculation part is used for calculating the fuzzy membership degree of each feature subset in the log feature data set; the leakage detection part is used for comparing the difference degree with a preset first threshold value, and if the difference degree exceeds the preset threshold value, it is judged that information leakage occurs. The method has remarkable beneficial effects in the aspects of improving detection precision, enhancing real-time performance and response capability, improving adaptivity and flexibility, protecting data and pri