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System for preventing illegal copy digital content

A digital content and content technology, applied in digital transmission systems, preventing unauthorized use of memory, transmission systems, etc., can solve the problems of easy copying and illegal transmission of digital data

Inactive Publication Date: 2005-06-08
SAMSUNG ELECTRONICS CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0009] However, as described above, it is a disadvantage that the digital data downloaded to the first and second content output units and the content storage unit are easily copied and illegally distributed.

Method used

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  • System for preventing illegal copy digital content
  • System for preventing illegal copy digital content
  • System for preventing illegal copy digital content

Examples

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Embodiment Construction

[0021] Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings.

[0022] figure 1 A system for preventing illegal copying of digital content according to an embodiment of the present invention is schematically shown, and its structure is as follows:

[0023] The authority identification unit 10 generates a manufacturer key and manufacturer key data according to the first registration request signal 22 input from the recording / reproducing device supply unit 20 described later, and outputs the manufacturer key and manufacturer key data to the recording / reproducing device supply unit 20. key data12. Then, authority identifying unit 10 utilizes manufacturer's key and manufacturer's key data 12 to generate first and second lists, and according to the second registration request signal 31 input from content supply unit 20, produces the first authentication qualification key and the second list. An authenti...

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Abstract

In order to prevent illegal copying of encoded digital content downloaded by a user for reproduction, the digital content supply unit accepts authorization to legally provide digital content from the right identification unit. The digital content supply unit and the authenticated first content output unit form a shared channel key to form a secret channel between the two, and then authenticate the connected second content output unit through them. The channel key is used to form a secret channel between the first and second content output units, and digital content is downloaded or uploaded to each other according to their respective control state data. Therefore, it is possible to prevent illegal copying of digital content transferred among the three.

Description

technical field [0001] The present invention relates to a system for preventing illegal copying of digital content, and more particularly to a system for preventing illegal copying of digital content in which a secure channel is formed between all systems connected to users, and through the formed secure Channels exchange content to prevent illegal copying of digital content. Background technique [0002] In recent years, with the rapid development of the communication industry, a large amount of data has become available through the Internet, and data can be easily downloaded from the Internet through Internet service providers and the like using multiple terminals. [0003] Therefore, in such a communication environment, people can obtain various data. That is, individuals can own Internet devices having communication functions, and can download various data from the Internet using these Internet devices. [0004] Here, the aforementioned Internet devices refer to PC pho...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G09C1/00G06F12/14G06F21/00G06F21/24G11B20/10H04L9/32H04L29/06
CPCG06F21/10H04L63/0428H04L63/08
Inventor 李彰熙郑镐硕姜恩成
Owner SAMSUNG ELECTRONICS CO LTD