Secure access method for removable cards for computers.

摘要

The card includes a descriptor designed to contain card recognition and configuration data which permits the computer to use the card for the application for which it is designed. The system includes a card personalisation phase, during which descriptor data is determined by means of an encryption key code f and a password attributable to one or several authorised users. At the time of computer use, the user presents his password, and the operating system of the computer actuates reading of the descriptor and the execution of a function (f-1) for decoding of the data read into the descriptor from the password entered by the user to determine the coded data. The descriptor includes general data fields about the card and configuration data fields. <IMAGE>