Patent ID: 7392393
Filing Date: 2008-06-24
Classification: G06F,H04L,H04N

Abstract:
1. A content distribution system comprising: a first information processing apparatus configured to issue a content-download request in which a download destination that is different from the first information processing apparatus itself is specified; a second information processing apparatus that is specified as a download destination of content; and a content distribution server configured to receive the content-download request from the first information processing apparatus and send the content to the second information processing apparatus, wherein the first information processing apparatus sends a ticket carrying a digital signature of the second information processing apparatus to the content distribution server to authenticate that the second information processing apparatus is authorized to receive the content from the content distribution server, and the content distribution server verifies the digital signature on the ticket, and on condition that the verification has succeeded, the content distribution server determines that the second information processing apparatus is a content-download destination authorized by the first information processing apparatus, and sends the content to the second information processing apparatus.