Method, system and device for digital content authentication

Abstract

The invention discloses a method for authorizing digital content, a system and a device thereof, which is used for improving the authorizing efficiency of the digital content. The method for authorizing the digital content comprises the following steps: a server acquires the same part and different parts of a plurality of client identifications by analyzing on a plurality of client identifications; the server generates an encryption key by the same part, and encrypts a protective key for decrypting the digital content by the encryption key; moreover, the server generates an authorized client range of the digital content by the different parts; the server generates a certificate of authorization to the client by the protective key encrypted by the encryption key and the certificate of authorization generated by the authorized client range according to the request of the client to the digital content. The invention also provides a method for acquiring the digital content and a device thereof. The invention can be used for uniformly awarding the right that a plurality of clients can access the same digital content, thereby improving the authorizing efficiency of the digital content.

Description

technical field [0001] The invention relates to the technical field of digital copyright protection, in particular to a digital content authorization method, system and device. Background technique [0002] With the development and popularization of network technology, the number of digital content such as audio, video, pictures, and documents is increasing, and the use is becoming more and more extensive. The dissemination and sharing of digital content has become more convenient and faster. However, due to the characteristics of easy copying and dissemination of digital content, it leads to illegal circulation of digital content, which makes digital content produced with a lot of cost and manpower easy to be illegally copied and disseminated without permission, thus damaging digital content. The interests of right holders affect the enthusiasm of digital content creators, thereby hindering the development of the digital content industry. [0003] A technology that appears...

AI Technical Summary

Problems solved by technology

However, this binding process has certain limitations in practical applications

For example, in practical applications, it is usually necessary to grant the same permission to a certain batch of clients, that is, the batch of clients can download and use the same digital content, and the characteristic information of the batch of clients is related, for example, the A continuous range of digital symbols. However, according to the existing technology, this batch of clients needs to be authorized one by one, and the authorization certificate generated for each client cannot be applied to other clients in this batch of clients, that is, not universal

[0005] To sum up, the existing technology needs to authorize digital content for each client separately, and the authorization certificate of the same digital content cannot be used among multiple clients, thus resulting in low efficiency of digital content authorization

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