METHOD FOR COMPARING EQUALITY RELATIONSHIP OF ENCRYPTION DATA, DEVICE, COMPUTER APPARATUS, AND STORAGE MEDIUM

摘要

A method for comparing an equality relationship of encryption data, a device, a computer apparatus, and a storage medium, pertaining to asymmetric encryption techniques. The method comprises: a first participating party initiating an encryption data comparison request to a second participating party (S1); the second participating party sending, upon receiving the encryption data comparison request, a comparison request parameter to the first participating party (S2), wherein the comparison request parameter is obtained on the basis of first encryption data [a], second encryption data [b], and a randomly generated first secret parameter α; and the first participating party checking, according to the comparison request parameter, whether first original data a is equal to second original data b (S3). The method enables the first participating party to check whether two pieces of original data are equal without knowing original data of the second participating party, thereby satisfying requirements for high performance, low network transmission loss, active security standards, etc.