User authentication system for controlling user access to e.g. electronic access system, has testing device with matching unit to match transmitted biometric characteristics to user and verification unit to verify transmitted test data

摘要

The system has an access control device (20) with a receiving unit (21) e.g. microphone, for receiving biometric characteristics (B) of a user (A). The control device has a generation unit (22) for generating test data (C) as a function of the received characteristics. The control device has a transmission unit (23) for transmitting the received characteristics and the generated test data to a testing device (30). The testing device exhibits a matching unit (31) for matching the transmitted characteristics to the user and a verification unit (32) for verifying the transmitted test data. An independent claim is also included for a method for authenticating a user.