Hardening Registration Protection Schemes

This paper proposes a new technique for hardening registration number protections by using multithreaded Petri nets. Using this technique one is able to prevent reverse code engineering attacks, which consist of protection scheme analysis and reengineering. We come to the conclusion that using such a technique leads at minimum to an enormous reverse code engineering and analysis process for the attacker and that the proposed technique is therefore an amelioration in registration number protection.