Method of protecting and managing digital contents and system for using thereof
Number of patents in Portfolio can not be more than 2000
United States of America Patent
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N/A
Issued Date -
Dec 19, 2002
app pub date -
Apr 30, 2002
filing date -
Apr 30, 2001
priority date (Note) -
Abandoned
status (Latency Note)
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Abstract
A method and system for protecting copyright of digital contents and contents themselves which are distributed. A user receives the encrypted digital contents and encrypted decryption key capable of decrypting the encrypted digital contents. A key is generated from the system information representing a user personal unique system characteristic and the encrypted contents decryption key is decrypted. Decrypting the encrypted contents decryption key is proceeded only when a key generated by extracting information of a personal system of the contents to be used by a user is identical to a decryption key of the encrypted contents decryption key. When the contents decryption key is decrypted, the encrypted contents are decrypted and generated using the above decrypted contents decryption key. Such method approves only play/use of contents in the corresponding system, thereby preventing contents from being illegally used and distributed.
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