FIELD: information processing and control systems, in particular, for real time transactions of confidential information. SUBSTANCE: device has two separate authentication units: terminal unit and central unit, which are located at remote terminals and computer respectively. Terminal unit has central processing unit, key storage unit, sampling unit and comparator. Central unit central processing unit, decoder, key storage unit, comparator and unit for issuing central authentication code. EFFECT: decreased duration of communication channel usage for mutual authentication. 2 dwg
Authors
Dates
1999-02-10—Published
1998-03-05—Filed