Method for access protection

摘要

The use of a terminal of a data processing facility or data processing system or telecommunication switching system is enabled by the user in-putting a key number or a password via the input keyboard, a storage device with an interchangeable small and handy data carrier, connected to the terminal, containing the key number or the password at a particular storage location and the terminal being enabled in the case of a correspondence with the key number or the password input.