A digital rights management system for digital broadcasting based on home servers

This paper presents a digital rights management (DRM) system for digital broadcasting based on home servers (DBHS) using receivers with large-capacity storage devices. DBHS will enable viewers to enjoy 'television anytime/anywhere' by utilizing these storage functions. Our proposed DRM sys...

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Bibliographic Details
Published in:IEEE transactions on broadcasting 2006-06, Vol.52 (2), p.167-172
Main Authors: Nishimoto, Y., Baba, A., Kurioka, T., Namba, S.
Format: Article
Language:English
Subjects:
Access control
Access methods and protocols, osi model
Applied sciences
Broadcasting
Broadcasting. Videocommunications. Audiovisual
conditional access
Copyright
Cryptography
Devices
Digital
Digital audio broadcasting
Digital broadcasting
Digital recording
Digital rights management
Digital video broadcasting
Disk drives
Exact sciences and technology
Hard disks
home servers
Microcomputers
Nonlinearity
Playbacks
Protection
Prototypes
rights management and protection
Servers
Smart cards
Sound broadcasting
Systems, networks and services of telecommunications
Telecommunications
Telecommunications and information theory
Teleprocessing networks. Isdn
Television
Transmission and modulation (techniques and equipments)
Web server
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Summary:This paper presents a digital rights management (DRM) system for digital broadcasting based on home servers (DBHS) using receivers with large-capacity storage devices. DBHS will enable viewers to enjoy 'television anytime/anywhere' by utilizing these storage functions. Our proposed DRM system is suitable for broadcasting, and allows both rights protection and advanced access to content held on home storage devices (in terms of validity, usage and charge conditions, and so on). We developed a prototype DRM system using a Pentium3 personal computer (1 GHz) in order to evaluate the nonlinear playback and 'trick-play' modes of encrypted content on the hard disk drive (HDD). Using this prototype, we confirmed that the nonlinear playback of content encrypted using the proposed DRM system could be processed in real time. The functionality in terms of trick-play modes was equal to that of commercially available hard disk recorders. In addition, we developed a security module for the DRM system in the form of a smart card with a built-in processor. We confirmed that the proposed DRM system utilizing the new smart card could be applied to DBHS.
ISSN:0018-9316
1557-9611
DOI:10.1109/TBC.2006.875650