Safety video monitoring system based on homomorphic encryption

The invention aims to provide a security video monitoring system based on homomorphic encryption, and relates to the technical field of data security, the system comprises a video segmentation part, an encryption storage part, an analysis retrieval part, a verification sharing part and a user side; the video segmentation part is used for carrying out frame segmentation on video data and segmenting the video data into a plurality of frames to obtain video frame data; the encryption storage part is used for storing the encrypted video frame data in a database; the analysis and retrieval part is used for screening out encrypted video frame data meeting an analysis and retrieval instruction when the analysis and retrieval instruction is received; the verification and sharing part is used for sharing the corresponding encrypted video frame data to an authorized user; and the user side is used for reconstructing to obtain corresponding video data. According to the method, the data privacy protection level is remark