An object of this invention is to protect the right of a content holder without any necessity of a special storage medium incorporating a copyright protecting mechanism when the content holder does not coincide with a content creator. Information for encryption key generation is input. An encryption...http://www.google.fr/patents/US20080031446?utm_source=gb-gplus-shareBrevet US20080031446 - INFORMATION PROCESSING APPARATUS, DATA PROCESSING APPARATUS, AND METHODS THEREOF
INFORMATION PROCESSING APPARATUS, DATA PROCESSING APPARATUS, AND METHODS THEREOF
Numéro de demande: 11/829,299 Numéro de publication: US 2008/0031446 A1 Date de dépôt: 27 juil. 2007 Brevet délivré: US8005213 ( Date de délivrance 23 août 2011)
