Digital right management method and system

Abstract

The invention discloses a digital right management method and system. The digital right management method includes the steps that the digital right management system responds to a content request of a user at a client side under the condition that the response conditions are met, a user secret key at least containing pre-recorded fingerprint feature information of the user is used for carrying out encryption on a content secret key corresponding to the requested content to form an encrypted secret key; the encrypted secret key is returned to the client side, the client side uses the user secret key for decrypting the encrypted secret key to obtain the content secret key, and therefore the client side can use the content secret key to decrypt the requested content. The digital right management system uses the user secret key based on fingerprint features to encrypt the content secret key to form the encrypted secret key, and the content secret key is obtained only by decrypting the encrypted secret key through the user secret key based on the fingerprint features at the client side. Thus, safe transmission of the content secret key is guaranteed, and safety of content protection is further improved.

Description

technical field [0001] The invention relates to a digital copyright protection method and system thereof, in particular to a fingerprint feature-based digital copyright protection method and system thereof. Background technique [0002] With the development of sensor technology and image processing technology, fingerprint sensors and identification devices are widely used in various electronic equipment and security authentication systems. Since the fingerprint characteristics of each person are almost unique, fingerprint recognition technology uses optical, thermal or acoustic sensing technologies to collect fingerprint images of people, and extracts a unique fingerprint corresponding to a person through image processing techniques such as denoising. identification. Once the fingerprint image is collected for the first time, it can be stored in the computer database, and the image collected for the same fingerprint can be matched with the data stored in the database every ...

AI Technical Summary

Problems solved by technology

[0003] At the same time, with the rapid development of the Internet, electronic content in various media formats is becoming more and more abundant, and more and more channels are presented to users, which also brings many challenges to digital content services: On the one hand, Due to the abundance of network content and information, people hope to obtain content quickly and easily; on the other hand, content service providers or providers hope that the content of the service can be effectively protected, so that authorized users can access it reasonably, and not be copied arbitrarily, Modification and Redistribution

In order to protect the copyright of digital content, many organizations have designed many content protection methods and DRM systems, some through software and some through hardware encryption methods, and the focus and degree of content protection are different. However, we must face the contradiction between security and user experience. For example, hardware encryption can improve security, but additional hardware devices (such as encryption cards, ciphers, etc.) inconvenient

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