FINGERPRINT DATA PROTECTION AND AUTHENTICATION METHOD USING 3D FUZZY VAULT SCHEME, FINGERPRINT DATA PROTECTION APPARATUS USING 3D FUZZY VAULT SCHEME, AND FINGERPRINT DATA AUTHENTICATION SYSTEM USING 3D FUZZY VAULT SCHEME

摘要

Disclosed are a fingerprint data protection and authentication method using a 3-dimensional (3D) fuzzy vault, a fingerprint data protection apparatus using the 3D fuzzy vault, and a fingerprint data authentication system using the 3D fuzzy vault. The fingerprint data protection method using a 3-dimensional fuzzy vault scheme according to the present invention includes extracting fingerprint information including positions, angles, and types of minutiae collected from a fingerprint image input through a sensing device; generating a first polynomial with coefficients of the extracted fingerprint information; inserting a plurality of chaff minutiae composed of positions, angles, and types generated at random into the fingerprint information; and storing the fingerprint information with the first polynomial and the chaff minutiae in the form of a database. The fingerprint data protection method of the present invention uses a 3D fuzzy vault scheme in which more chaff minutiae can be added for concealing the fingerprint data and performs authentication process without releasing the concealed fingerprint information using a polynomial reconstruction, thereby improving security while maintaining a high recognition rate.