Method of verification of codes for a microcircuit with limited resources, uses secret key encryption to generate an authentication code from byte code stored in the smart card

摘要

The code verification loads Java intermediate code instructions into a read/write memory on a smart card. A secret key cipher is applied to the information to be verified, to generate (20) an authentication code. Part at least of the code to be verified together with the authentication code are sent to and stored in (22) an external computer.