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Digital copyright protecting method and system

A digital copyright protection and copyright technology, applied in digital transmission systems, analog security/charging systems, transmission systems, etc., can solve problems such as increasing user equipment overhead, reduce the risk of media streaming, avoid additional overhead, and improve security. Effect

Active Publication Date: 2006-11-08
HUAWEI TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0017] The purpose of the present invention is to overcome the problem that the decryption process of the existing media flow is completed by the applicati

Method used

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  • Digital copyright protecting method and system

Examples

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Embodiment Construction

[0050] The specific embodiments of the present invention will be further described below in conjunction with the accompanying drawings.

[0051] The invention provides an IPSec-based stream media digital rights management scheme. In this scheme, instead of encrypting the media stream, the logical channel between the stream media server and the user equipment is encrypted. In this solution, what is stored in the RO is not the logical channel key itself, but the authentication information for establishing an IPSec channel between the user equipment and the streaming media server, such as image 3 shown.

[0052] See the specific interaction process Figure 4 .

[0053] Step 41, the user equipment connects to the webpage of the content center CI, finds and requests to download the streaming media of interest;

[0054] Step 42, CI generates Token;

[0055] Step 43, CI sends Token to RI and user equipment;

[0056]Step 44, the streaming media server negotiates with the RI to g...

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PUM

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Abstract

The present invention discloses stream media digit copyright protection method. Said method includes stream media server negotiation with copyright centre to generate copyright object RO, RO carrying copyright service regulations and establishing oryptographic communication channel information; subscriber equipment receiving RO, through RO carried establishing oryptographic communication channel information to establish oryptographic communication channel with stream media server; stream media server through said oryptographic communication channel transmitting media stream to subscriber equipment. The present invention reduces terminal equipment performance requirement through ciphering logical channel rather than media stream itself, raising end to end communication security.

Description

technical field [0001] The invention relates to a digital copyright protection method and device, in particular to a streaming media digital copyright protection method and device. Background technique [0002] In recent years, the application of streaming media technology based on broadband wired network has made great progress, and the technology of streaming media based on mobile communication network is also becoming more and more mature. [0003] Streaming media is a media format transmitted over the network by streaming. Streaming media does not need to download the entire file before playing, but only stores the beginning part of the content in the memory, and caches the data packets in the user terminal so that the media data can be output correctly. In the streaming transmission side, the user does not have to wait until the entire media file is downloaded, but only needs a few seconds or tens of milliseconds of start-up delay to watch, and the rest of the file wil...

Claims

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Application Information

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IPC IPC(8): H04L29/06G06F21/00
CPCG06F21/10G06F2221/2115H04N7/1675H04N7/17318H04N21/23895H04N21/2541H04N21/26613H04N21/64322H04L9/0844H04L9/3213H04L2209/603G06F21/00H04N7/16H04L9/00
Inventor 杨健赵琴
Owner HUAWEI TECH CO LTD