Abstract: On the content delivery side, a user management control unit manages authentication information and the distribution of a delivery list at the time of delivering service, the acceptance of a content select request, and charging and settlement on a user basis. On the other hand, an encrypted content control unit creates a content key and an encrypted content using the content key on the basis of a content key creating condition from a copyright owner or copyright manager. Then, an encrypted content key control unit encrypts the corresponding content key using medium information, or medium information and terminal device unique key information presented at the content request, delivers the key to the requester. Then, a content delivery control unit delivers the corresponding encrypted content to the requester at the content request.
Type:
Grant
Filed:
July 23, 2007
Date of Patent:
October 22, 2013
Assignees:
Kabushiki Kaisha Toshiba, Toshiba Communication Systems Corporation
Abstract: On the content delivery side, a user management control unit manages authentication information and the distribution of a delivery list at the time of delivering service, the acceptance of a content select request, and charging and settlement on a user basis. On the other hand, an encrypted content control unit creates a content key and an encrypted content using the content key on the basis of a content key creating condition from a copyright owner or copyright manager. Then, an encrypted content key control unit encrypts the corresponding content key using medium information, or medium information and terminal device unique key information presented at the content request, delivers the key to the requester. Then, a content delivery control unit delivers the corresponding encrypted content to the requester at the content request.
Type:
Grant
Filed:
July 23, 2007
Date of Patent:
October 6, 2009
Assignees:
Kabushiki Kaisha Toshiba, Toshiba Communication Systems Corporation
Abstract: On the content delivery side, a user management control unit manages authentication information and the distribution of a delivery list at the time of delivering service, the acceptance of a content select request, and charging and settlement on a user basis. On the other hand, an encrypted content control unit creates a content key and an encrypted content using the content key on the basis of a content key creating condition from a copyright owner or copyright manager. Then, an encrypted content key control unit encrypts the corresponding content key using medium information, or medium information and terminal device unique key information presented at the content request, delivers the key to the requester. Then, a content delivery control unit delivers the corresponding encrypted content to the requester at the content request.
Type:
Grant
Filed:
March 24, 2004
Date of Patent:
August 4, 2009
Assignees:
Kabushiki Kaisha Toshiba, Toshiba Communications Systems Corporation