System for secure authentication of information transmitted across a data network, comprising microcomputer and authentication terminal connected via a switch with a controller to a modem and the network

摘要

System for secure authentication of information transmitted across a data network, whereby the system comprises a microcomputer (3) connected to a network (1) via a modem (4). Also connected to the modem is an authentication terminal (5). Between terminal and microcomputer and the modem is a switch (7) with a controller (8). The controller commands the switch such that only the microcomputer or the authentication terminal are connected at any one time.