SEQUENZNUMMERIERUNGSMECHANISMUS ZUR SICHERUNG DER AUSFÜHRUNGSORDNUNGS-INTEGRIETÄT VON UNTEREINANDER ABHÄNGIGEN SMART-CARD ANWENDUNGEN

摘要

Software code of a software program is executed in a multi-processor computer environment. The software code includes a first portion and a second portion. The first portion is executed in a computer. The second portion is executed in one or more tamper-resistant external devices which are in communication with the computer. The second portion includes a plurality of different blocks of code. At least some of the blocks have sequence data associated therewith. If sequence data exists in the current block of code to be executed in the one or more external devices, then the sequence data is used to determine if execution of the block of code is permissible or should be inhibited. The sequence data includes predecessor data and successor data.