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A Trusted Key Management Scheme for Digital Rights Management

A Trusted Key Management Scheme for Digital Rights Management. Yeonjeong Jeong, Kisiong Yoon, and Jaecheol Ryou. ETRI Journal, Volume 27, Number 1,February 2005. Outline. Introduction DRM system Trusted Key Management Scheme Encryption Key Key Distribution Scheme Key Delivery Scheme

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A Trusted Key Management Scheme for Digital Rights Management

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  1. A Trusted Key Management Scheme for Digital Rights Management Yeonjeong Jeong, Kisiong Yoon, and Jaecheol Ryou ETRI Journal, Volume 27, Number 1,February 2005

  2. Outline • Introduction • DRM system • Trusted Key Management Scheme • Encryption Key • Key Distribution Scheme • Key Delivery Scheme • Conclusion

  3. 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.

  4. DRM system

  5. 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.

  6. Key Distribution Scheme

  7. Key Delivery Scheme Key delivery when packaging

  8. Key Delivery Scheme Key delivery when content service is provided

  9. Conclusion • The proposed scheme protects the key from not only the purchaser but also other principals.

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