A system for controlling unauthorized access to information distributed to users and, more particularly, for controlling unauthorized access to software distributed to users is provided. One method utilizing the system of the present invention enables the software to be encrypted using a single encryption...http://www.google.fr/patents/US5586186?utm_source=gb-gplus-shareBrevet US5586186 - Method and system for controlling unauthorized access to information distributed to users
Method and system for controlling unauthorized access to information ...
