Authors:
Masaki Inamura
1
;
Toshiaki Tanaka
1
;
Toshiyuki Fujisawa
2
;
Kazuto Ogawa
2
and
Takeshi Kimura
2
Affiliations:
1
KDDI R&D Laboratories Inc., Japan
;
2
Science & Technical Research Laboratories, Japan Broadcasting Corporation, Japan
Keyword(s):
Prepaid Ticket, License Transfer, Anonymity, Blind Signature.
Related
Ontology
Subjects/Areas/Topics:
e-Commerce Protocols and Micropayment Schemes
;
Information and Systems Security
;
Mobile System Security
;
Network Security
;
Security in Information Systems
;
Security Information Systems Architecture and Design and Security Patterns
Abstract:
Content delivery is one of the promising services for both digital broadcasting and the Internet. The provision of home gateway for connecting the internet provider or set top box for broadcasting causes a variety of content services and convenient functions. However, if a user wants to enjoy digital content not only in his home but also outside of it, it is difficult to use, because a license for digital content is usually bound to the set top box or home gateway. For the purpose to utilize the digital content in the open space, we propose a new system where a user can purchase a license and securely delegate the license stored in the set top box to the mobile terminal. Therefore he can enjoy content by showing the license stored in the mobile terminal as a prepaid ticket. Moreover, to protect user’s privacy, our proposed mechanism supports anonymity when using the ticket.