Fingerprint authentication method and system for rejecting spoofing attempts

A method of authenticating a user by means of a fingerprint authentication system, comprising the steps of receiving a touch by a candidate finger probe; acquiring a first candidate fingerprint image of the candidate finger probe; determining a first authentication representation based on the first candidate fingerprint image; retrieving a stored enrollment representation of an enrolled fingerprint of the user; comparing the first authentication representation with the enrolment representation; determining a liveness score for the candidate finger probe; and when the first authentication representation matches with the stored enrolment representation, and the liveness score indicates a likely spoof: providing a signal indicating a failed authentication; determining a first anti-spoofing representation based on the first candidate fingerprint image; and storing the first anti-spoofing representation.