A receiving device (110) for securely storing a content item (102) on a storage medium (111). The content item (102) is stored in a secure format, and has an associated license file. The license file (141) is encrypted using public key associated with a group of playback devices (120, 121), so that each...http://www.google.fr/patents/US20020174354?utm_source=gb-gplus-shareBrevet US20020174354 - Receiving device for securely storing a content item, and playback device
Receiving device for securely storing a content item, and playback device
Numéro de demande: 10/094,067 Numéro de publication: US 2002/0174354 A1 Date de dépôt: 8 mars 2002 Brevet délivré: US7124304 ( Date de délivrance 17 oct. 2006)
