DIFFERENTIAL PRIVACY METHOD USING SECRET SHARING SCHEME

摘要

The present invention relates to a differential privacy method using a secret sharing technique. According to an embodiment of the present invention, the differential privacy method using the secret sharing technique comprises: (a) step of sharing a plurality of pieces of secret information to each of analyzer terminals; (b) step of receiving an inquiry for an information request; (c) step of evaluating a privacy impact degree for the inquiry; (d) step of requesting and receiving data corresponding to the inquiry; (e) step of adding noise to the received data; (f) step of encoding the data with the added noise; (g) step of transmitting the encoded data to an analyzer terminal which requests the inquiry; (h) step of receiving the secret information from the analyzer terminal which requests the inquiry, and the remaining analyzer terminals; (i) step of decoding the encoded data; and (j) step of transmitting the decoded data to the analyzer terminal which requests the inquiry. The present invention prevents leakage of personal information.