To provide a management server, information processor, management method, and information processing method for protecting copyright of a content.
A management server 20 is provided with: a group management part 232 for registering one or more information processor 30 owned by an identical user in one group and distributing a user key granted uniquely to the group-registered information processor for each user; a licence issuing part 238 for issuing a license obtained by encrypting a use condition of the content and a content key for decoding an encrypted content with the user key in response to a request from the information processors; and a right information issuing part 260 for issuing right information to permit use of the content based on the license in a specific use form to an information processor whose use in the specific use form is permitted among group-registered information processors.
COPYRIGHT: (C)2008,JPO&INPIT
| JP2005129063 | APPLICATION ID FOR SOFTWARE PRODUCTS |
| WO/2000/020948 | COPY PROTECTION SYSTEM AND METHOD |
| WO/2018/047053 | STANDARD AND NON-STANDARD DISPERSED STORAGE NETWORK DATA ACCESS |
NAKAMURA ATSUSHI
KAWAMOTO HIROSHI
FUTAGAMI KISEI
ADACHI SEIICHI
Tetsuo Kanamoto
Koji Hagiwara
Next Patent: VOLTAGE GENERATION CIRCUIT AND ELECTRIC APPLIANCE PROVIDED WITH THE SAME