Digital media management system and management method based on digital certificate

Abstract

The invention relates to a digital media management system and a management method based on a digital certificate. An authentication server issues certificates and corresponding certificate private keys for each user end and a media supply server; the user end can access different media supply servers according to the certificate issued by the authentication server without logging in when accessing a new media supply server each time; in addition, after the authentication server validates the identities of the user end and the media supply server, the medial supply server distributes a main private key to the user end, obtains a service private key of the communication of the medial supply server and the user end through derivation, establishes a safe channel for the transmission of digital media data and realizes the encrypted transmission of the digital medial data in the safe channel through the service private key. In the scheme of the invention, communication among the user end, the media supply server and the authentication server in the process of accessing and authentication is not needed to pass through an additional safe channel, thereby the invention improves and breaks through the management and the operation mode.

Description

technical field [0001] The invention relates to the technical field of digital information network, to digital media management technology, in particular to a digital certificate-based digital media management system and management method. Background technique [0002] With the rapid development of network information technology, the application of digital media technology has emerged. Because digital media technology has the advantages of high transmission quality, wide range, and fast transmission speed, and can be transmitted on the Internet, cable TV network, wireless network, etc., it has been loved by many users. It is foreseeable that digital media will be more and more popular. Into the daily life of the public, has a very broad market prospects. [0003] In the application of digital media, out of consideration for the interests of the digital media service provider, only legal users, such as those authorized by the digital media service provider, can obtain and re...

AI Technical Summary

Problems solved by technology

[0003] In the application of digital media, out of consideration for the interests of digital media service providers, there should only be legal users, such as users approved by digital media service providers , to obtain and receive the digital media content provided by the digital media service provider. In the prior art, the digital media content is provided to certain designated users by adopting the method of "account + password". However, due to the openness of the network Illegal users may intercept digital media data transmitted in the network, infringing on the interests of the digital media service provider and legal users. In addition, illegal intruders may pass forged digital media data in wired networks such as the Internet and wireless networks. Media servers, inserting and distributing illegal digital media to infringe the interests of legitimate users, but users cannot know the legitimacy of digital media servers that provide digital media resource services to them, and may even affect users' trust in obtaining digital media resources from the Internet degree, affecting the long-term development of the field of digital media technology

In addition, the current digital media application has not yet been scaled up. Although this digital media management method in the prior art can solve the management of digital media resources in the distribution and transmission to a certain extent, it does not have the ability to handle large-scale digital media. Network management capabilities. In a large-scale digital media network, there will be different digital media servers established by different digital media service providers. In terms of long-term development trends, the increase in digital media provider servers is bound to increase Increase the difficulty of supervision by regulatory agencies. Therefore, it has become a development trend to establish a unified management agency to conduct unified certification and management of various digital media service providers and users. There is not yet a unified digital media management system in the prior art. Management method Unified management of each digital media service provider and each user

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