METHOD FOR OPERATING AN ELECTRONIC DATA PROCESSING SYSTEM AND ELECTRONIC DATA PROCESSING SYSTEM

The invention is related to a method for operating an electronic data processing system (10) operable under an operating system, the electronic data processing system (10) comprising a boot system (13) for selectively loading an operating system from one of a plurality of storage media (12, 30), said boot system (13) being accessible to an external user on execution of an identification protocol between said boot system (13) and said user, wherein said identification protocol is a challenge-response protocol based on a challenge generated by said boot system (13), more particularly, based on a challenge randomly generated by said boot system (13), and communicated to said user in an outgoing message, and on verification of a response generated by said user on the basis of said challenge and received by said boot system (13) as an incoming message generated by said user. Furthermore, the invention is related to an electronic data processing system (20), and to a weighing scale (1) and an authentication system comprising the electronic data processing system (10). (Fig. 2)