View
214
Download
2
Category
Preview:
Citation preview
A Trusted Key Management Scheme for Digital Rights Management
ETRI Journal, Volume 27, Number 1,February 2005
Yeonjeong Jeong, Kisiong Yoon, and Jaecheol Ryou
OutlineIntroductionDRM systemTrusted Key Management Scheme
Encryption Key Key Distribution Scheme Key Delivery Scheme
Conclusion
Introduction Digital rights management adopts a license-based
mechanism which separates the keys from encrypted contents.
Digital rights management do not provide a way to protect a digital content form the license server.
DRM system
Encryption Key
The digital content is encrypted with a symmetric keys.
To protect against the illegal use of symmetric keys, the seeds of symmetric keys are encrypted with a public key.
Key Distribution Scheme
Key Delivery Scheme
Key delivery when packaging
Key Delivery Scheme
Key delivery when content service is provided
Conclusion The proposed scheme protects the key from not only the
purchaser but also other principals.
Recommended