Identity authentication method for providing access to e.g. computers, uses central computer to compare ID code sent to device via mobile terminal with code received from this device

摘要

An ID-code is sent from a central computer (1) to a mobile terminal (3) via a radio link and then sent by the terminal to the device (2, 11) via a short-range radio link (5, 13). The device or a transmitter unit in the latter sends the ID-code to the central computer, which compares the received code with that sent to the mobile terminal. The mobile terminal is a mobile phone. The short-range radio link is an RFID or Bluetooth link.