Unlock instant, AI-driven research and patent intelligence for your innovation.

DRM file integrity protection method and device

An integrity and file technology, applied in the field of communication, can solve the problem of lack of DRM file integrity protection scheme, etc., to achieve the effect of strengthening terminal security, occupying less terminal resources and fast time

Active Publication Date: 2010-06-16
ZTE CORP
View PDF0 Cites 9 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In summary, it can be seen that there has been a problem of lack of an effective DRM file integrity protection scheme in the prior art for a long time, so it is necessary to propose improved technical means to solve this problem

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • DRM file integrity protection method and device
  • DRM file integrity protection method and device
  • DRM file integrity protection method and device

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0019] The purpose of the present invention is to provide a technical solution for protecting the integrity of DRM file content adapting to terminal performance. The DRM agent (DRM agent) only needs to analyze the description information of the DRM file header, find the corresponding copyright (RO), and choose to calculate the hash value of the meta information of the DRM file or the hash value of the media content according to the integrity check level of the copyright. Corresponding verification is performed with the meta information hash value item or the media content hash value in the copyright file. Since the meta information is the description information of the DRM file header, the amount of data is extremely small, and the calculation of the hash value takes up less terminal resources and takes less time, and will not affect user experience.

[0020] In order to make the purpose, technical solution and advantages of the present invention clearer, the present invention...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention discloses DRM file integrity protection method and device, wherein the method comprises the steps of: analyzing a DRM file and obtaining the file head description information of the DRM file; searching a matched copyright file in a copyright database according o the file head description information of the DRM file, and determining the integrity grade of the DRM file according to the copyright file; verifying the DRM file according to the integrity grade of the DRM file and determining whether the DRM file is allowed to be used or not according to the verification result. By theinvention, the requirement on the information integrity protection of DRM contents can be met simply and efficiently.

Description

technical field [0001] The present invention relates to the communication field, in particular to a DRM (Digital rights management, digital rights management protection technology) file integrity protection method and device. Background technique [0002] With the establishment of 3G network, the large capacity of information storage, the rapid development of highly integrated technology, and the substantial improvement of network speed, the application of mobile terminals is not limited to simple communication. The downloading of multimedia data and large-capacity media files on mobile terminals has become a common business. Due to the sharp increase in the downloading of multimedia services by terminals, how to increase the protection of the rights and interests of content copyright owners has become the focus of major operators. DRM is the key technology to improve and implement the operator's copyright policy. DRM is to technically prevent the illegal copying of digital...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Applications(China)
IPC IPC(8): G06F21/00H04L29/06G06F21/10G06F21/64
CPCG06F21/10G06F21/64
Inventor 陈细双
Owner ZTE CORP