Electronic Device, Home Network System and Method for Protecting Unauthorized Distribution of Digital Contents
First Claim
1. An electronic device for protecting unauthorized distribution of digital contents, comprising:
- an encryption key generator generating an encryption key;
a contents player playing first digital contents;
a contents regenerator generating second digital contents by converting the first digital contents played by the contents player into a predetermined data format; and
a controller controlling the contents regenerator to encrypt the second digital contents by the use of the encryption key generated by the encryption key generator at the time when the contents regenerator generates the second digital contents.
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Abstract
The present invention relates to an electronic device, a home network system and a method for protecting unauthorized distribution of digital contents. The electronic device for protecting the unauthorized distribution of the digital contents includes an encryption key generator generating an encryption key; a contents player playing first digital contents; a contents regenerator generating second digital contents by converting the first digital contents played by the contents player into a predetermined data format; and a controller controlling the contents regenerator to encrypt the second digital contents by the use of the encryption key generated by the encryption key generator at the time when the contents regenerator generates the second digital contents.
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Citations
19 Claims
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1. An electronic device for protecting unauthorized distribution of digital contents, comprising:
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an encryption key generator generating an encryption key; a contents player playing first digital contents; a contents regenerator generating second digital contents by converting the first digital contents played by the contents player into a predetermined data format; and a controller controlling the contents regenerator to encrypt the second digital contents by the use of the encryption key generated by the encryption key generator at the time when the contents regenerator generates the second digital contents. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. A home network system for protecting unauthorized distribution of digital contents, comprising:
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a first electronic device having a first encryption key; a second electronic device having a second encryption key; and a home network server in which the first encryption key and the second encryption key are registered, wherein the first electronic device plays first digital contents, generates second digital contents by converting the first digital contents into a predetermined data format and generates the second digital contents encrypted by the use of the first encryption key, wherein the second electronic device transmits information about the second digital contents and the second encryption key to the home network server at the time of playing the second digital contents, wherein the home network server performs the authentication of the second electronic device by the use of the second encryption key transmitted from the second electronic device and transmits the first encryption key to the second electronic device on the basis of the information about the second digital contents transmitted from the second electronic device, and wherein the second electronic device plays the second digital contents encrypted by the use of the first encryption key transmitted from the home network server. - View Dependent Claims (10, 11, 12, 13, 17, 18, 19)
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14. A method for protecting unauthorized distribution of digital contents, comprising:
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generating a first encryption key; playing first digital contents; and generating second digital contents by converting the played first digital contents into a predetermined data format, the second digital contents being encrypted by the use of the first encryption key. - View Dependent Claims (15, 16)
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Specification