Digital content protection method ciphered by biological characteristic

A technology of digital content and biometrics, applied in the direction of program/content distribution protection, digital data authentication, electronic digital data processing, etc., can solve problems such as poor consumer experience, and achieve the effect of not being easily forgotten or lost

Inactive Publication Date: 2009-03-11
BEIJING UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

But this method can't meet the demand of a legitimate user playing this multimedia document in multiple systems (such as on a notebook and a desktop), causing bad consumption experience to the user

Method used

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  • Digital content protection method ciphered by biological characteristic
  • Digital content protection method ciphered by biological characteristic
  • Digital content protection method ciphered by biological characteristic

Examples

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Embodiment Construction

[0022] Attached below figure 1 Specifically introduce the steps of the implementation method of the present invention:

[0023] See attached figure 1, the present invention is a protection scheme for encrypting digital multimedia content using biometric features of users. The scheme includes two communication entities, that is, a multimedia content server S and a user U, and U wants to receive and play the multimedia file V stored in S. In the process of file transfer, in order to prevent the file from being illegally shared, a scheme combining symmetric and asymmetric key encryption is adopted. In order to prevent illegal sharing of decryption keys, the user's biometric features are used. It is also stipulated that: before the communication starts, the two parties have agreed on the symmetric and asymmetric encryption systems used in the following process, and the Hash function H() used. Devices on the client side such as biometric sensors, matchers, decryption modules, m...

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Abstract

The invention relates to an encrypted digital content guard method adopting biological characteristic, which belongs to the technical field of information security. The invention adopts the guard proposal that biometrics characteristics of a user is used to encrypt digital multimedia content, the guard proposal is based on the biometrics data of the user and one layered encryption and decryption plan, uses the combination of a symmetric key system and an asymmetric system, and prevents the illegal sharing of the keys through using the biometrics data as the keys. The proposal includes two communication bodies, i.e. a multimedia server S and a user U, the U receives and broadcasts a multimedia file V stored in the S. When the communication starts, the user sends the self biometrics characteristics to the server, the server uses the biometrics characteristics to encrypt the multimedia content which is then sent to the user, when the biometrics characteristics of the user matches with encrypted keys, the multimedia content can be watched, thereby the guard of the multimedia content is realized.

Description

Technical field: [0001] The present invention relates to information security technology and biometrics application, to be precise, relates to a kind of multimedia content protection method based on bio-encryption technology, which is different from the previous method of embedding watermark and protecting content by key, this method utilizes The user's biometric feature encrypts the digital multimedia content to implement copyright protection of the multimedia content. Background technique: [0002] The application of digital technology in the generation, editing and distribution of multimedia data provides many opportunities for pirate users, such as high-fidelity copies. In addition, the widespread use of the Internet is providing pirates with an additional channel to easily distribute copyrighted digital content without fear of being tracked. For this reason, the protection of intellectual property rights of multimedia content (images, video, audio, etc.) is receiving c...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L9/08H04L9/30G06F21/00G06F21/10G06F21/32
Inventor 杨震范科峰王明彦张素兵雷建军王坚赖英旭段立娟
Owner BEIJING UNIV OF TECH
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