Both a management server and a validation server are installed. Both a terminal and a terminal register setting information which is usable in an encrypted communication in the management server. When carrying out the encrypted communication, the management server searches the registered setting information...http://www.google.fr/patents/US7443986?utm_source=gb-gplus-shareBrevet US7443986 - Key allocating method and key allocation system for encrypted communication
Key allocating method and key allocation system for encrypted communication
