TAG DATA GENERATION METHOD, TAG, AND NFC TAG-BASED DATA PROCESSING

摘要

The present invention relates to a tag data generation method, a tag, and an NFC tag-based data processing method and system. The tag data generation method comprises: a counting step for counting the number of interactions of a tag and generating a count value; a random key generation step for generating a first random key; an encryption step for performing an encryption operation on the count value and the first random key using a first encryption algorithm to generate encrypted data; and a pre-processing step for fusing the count value, the encrypted data, and a tag ID, wherein the tag ID is an identifier of a tag. The present invention can effectively ensure the security of tag data, thereby improving the security of a transaction.