A digital rights management system and method against proliferation

Abstract

The present invention discloses an anti-spreading digital copyright management system and method. The system comprises: a content server, a DRAM management platform, a license server, a CA center, and a user terminal. According to the present invention, a user can still use the digital product without connecting to the Internet (non initial use). Before copying a certificate file, a protected file and a client to another computer, a non-licensed user needs to re-access the Internet to acquire license. In this way, it is ensured that the non-licensed user fails to directly copy and use the protected file. The same licensed user can use the protected file in a plurality of hardware environments according to the purchased licensing times, and the user can also cancel the usage permission of the purchased protected file in a specific environment via a deactivation operation.

Description

technical field [0001] The invention belongs to the technical field of information security, and in particular relates to a non-proliferation digital copyright management system and method. Background technique [0002] Digital rights management is an urgent problem in the legal and IT circles in recent years. The first generation of digital rights management technology is mainly dedicated to the development of digital content security and encryption technology. While providing digital and networked information services, Effectively prevent the illegal use and spread of these information, in order to achieve the purpose of protecting digital intellectual property rights. With the development and widespread use of digital publishing, traditional encryption technology can no longer meet the needs of digital rights management. In order to better protect the copyright of digital content, digital rights management technology has been proposed to ensure the safe use and dissemina...

AI Technical Summary

Problems solved by technology

This method allows the purchaser to use the digital product offline, but if the local certificate is copied to other computers, other unauthorized users will also be authorized

[0005] There are also some methods that directly bind the hardware information with the user, and each verification will check the local hardware information. However, for a purchasing user, the purchased digital content product cannot be used on other computers or devices, which also limits users' rights, which requires a new approach to improve the security and flexibility of digital rights management

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