Internet of Things equipment safety auxiliary method and device, equipment and storage medium

The invention discloses an Internet of Things equipment safety auxiliary method, device and equipment and a storage medium, and relates to the technical field of computers, and the method comprises the steps: obtaining an original matrix in original privacy data collected by Internet of Things equipment; performing matrix blinding processing on the original matrix by using a random key matrix obtained after initialization processing to obtain a blinded matrix; distributing the blind matrix to a plurality of edge servers based on a preset classification rule, and obtaining a matrix decomposition result of the blind matrix returned by the edge servers; matrix conversion operation is sequentially carried out based on the matrix decomposition result to construct a to-be-verified initial singular value decomposition result, then matrix verification is carried out, and after verification is passed, matrix recovery operation is carried out by using the initial singular value decomposition result to obtain a target s