Verfahren und Vorrichtung zum Laden von Inputdaten in einen Algorithmus bei der Authentikation

摘要

The problem associated with data security during payment transactions using smart cards lies in the processes involved in loading input data into an algorithm during authentication. According to the invention, the security of the withdrawal and charging data is improved by dividing the data blocks and switching an additional feedback to the downstream counters on and off at pre-selected times (cycles). The invention can be used in all authentication processes involving smart cards.