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Device-based digital copyright re-trade method

A technology of digital copyright and re-trading, applied in digital transmission systems, electronic digital data processing, data processing applications, etc., can solve the problems of key theft and unfavorable digital copyright protection, reduce the use cost, facilitate re-trading, avoid The effect of explicit communication

Inactive Publication Date: 2016-05-18
BEIJING ZHONGTIAN ANTAI TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] However, the above process involves the explicit transmission of the key (spread on the network), which is easy to cause the key to be stolen, which is not conducive to the protection of digital copyright

Method used

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  • Device-based digital copyright re-trade method

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Embodiment Construction

[0023] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.

[0024] Network Environment and Digital Copyright Management System

[0025] According to an embodiment of the present invention, a digital rights management system is provided, such as figure 1 shown, including:

[0026] Server 11 (also referred to as a digital rights management server, a digital rights server), is used to conduct digital rights transactions with the user's electronic device and / or maintain digital rights; and

[0027] A terminal computing device connected to the server 11 through a network, including:

[0028] smartphone12,

[0029] desktop computer 13 and

[0030] Tablet 14;

[0031] A c...

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PUM

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Abstract

The invention provides a digital right management method based on equipment. The method includes the steps that a user of a computing device registers on a digital right server through a digital right client so that the computing device can be a registered device, and the digital right client sends device information of the registered device to the digital right server; after the user purchases an electronic file through the registered device, the digital right server encrypts the electronic file through all or partial stored device information of the registered device and then sends the electronic file to the digital right client; after the digital right client receives the electronic file, the electronic file is decrypted through decryption secret keys which are all or partial device information identical with that of the digital right server. According to the digital right management method, local hardware information serves as bases of encryption and decryption, dominant spreading of the secret keys is avoided.

Description

technical field [0001] The invention relates to the field of digital rights, in particular to a device-based digital rights management method and re-trading method. Background technique [0002] In the prior art, digital rights management (DRM, Digital Rights Management) is widely used to prevent illegal duplication of digital media. [0003] Digital rights management first establishes a digital program authorization center. The coded and compressed digital program content can be encrypted and protected with a key, and the encrypted digital program header stores the KeyID and the URL of the program authorization center. When the user orders, according to the KeyID and URL information at the head of the program, the digital program authorization center can send the relevant key for decryption after verification and authorization by the digital program authorization center, so that the program can be played. There are generally two keys, a public key and a private key. The ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06F21/10H04L9/00
CPCG06F21/10G06F2221/2107G06Q30/0601
Inventor 汪家祥
Owner BEIJING ZHONGTIAN ANTAI TECH CO LTD
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