Drm method and drm system using trusted platform module
AssigneeElectronics and Telecommunications Research Institute
InventorsYungjoon JUNG, Donghyouk Lim, Youngbin Seo, Yonggwan Lim, Jaemyoung Kim, Seungmin Park
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Abstract
The present invention relates to a terminal apparatus including a trusted platform module (TPM) and a DRM method using the same. The terminal apparatus receives information on a validity period from a server, uses the TPM generates a public key including the information on the validity period, transmits the public key to the server, receives encoded digital contents from the server, and uses the TPM to decode the received digital contents.
Claims12
A DRM (digital right management) method using a terminal apparatus including a TPM (trusted platform module), the method comprising:
- receiving information on a validity period from a server;
- using the TPM to generate a public key including the information on the validity period;
- transmitting the generated public key to the server;
- receiving an encoded digital content from the server;
- and
- using the TPM to decode the received digital content.
A DRM terminal apparatus comprising:
- a DRM download unit that downloads a digital content from a server;
- and
- a TPM (trusted platform module) that generates a public key, and encodes or decodes the digital content,
- wherein the DRM download unit downloads the encoded digital content from the server, and
- the TPM decodes the downloaded digital content.
A DRM system comprising:
- a DRM server;
- and
- a DRM terminal apparatus,
- wherein the DRM server transmits information on a validity period to the DRM terminal apparatus, and also transmits an encoded digital content to the DRM terminal apparatus using a public key received from the DRM terminal apparatus, and
- the DRM terminal apparatus includes a TPM, uses the TPM to generate a public key including the received information on the validity period, transmits the public key to the DRM server, and uses the TPM to decode the encoded digital content received from the DRM server.
Dependencies are inferred from the claim text.