A digital copyright management method for dealing with illegal copying

Abstract

The invention discloses a digital rights management method for solving the problem of illegal copying, and relates to the technical field of information security. The method includes the steps that 1 original data are encrypted and packaged by a content server as required to form processed protected files which are mounted on the internet to be downloaded by users; 2 the users install client software; 3 the users use the client software at user terminals, and if local verification successes, the users can use the protected files under the circumstance that the user terminals are not connected to the internet; 4 when local verification fails, the users need to conduct networking verification; 5 after the local verification successes or networking verification successes, the original data are used. According to the digital rights management method, hardware information of the user terminals is used for generating encrypted and decrypted symmetric keys to encrypt and decrypt licenses, and therefore local verification is achieved; once authorization is conducted, the users can open the files under the circumstance that the user terminals are not connected to the internet; the users cannot open the files normally under the circumstance that authorization is not conducted again through networking, and therefore illegal copying is effectively solved.

Description

technical field [0001] The invention relates to the technical field of information security, in particular to a digital copyright management method for dealing with illegal copying. Background technique [0002] Digital Rights Management (DRM for short) refers to a comprehensive solution based on information security technology adopted by content publishers in order to control the right to use digital content and protect the copyright of digital files. With the rapid development of the Internet and the improvement of streaming media compression technology, various digital files are distributed widely and freely in the network, which makes the content publishers suffer huge losses. Therefore, it is particularly important to ensure the legal use and dissemination of digital files. [0003] After the digital file is purchased by the user as a commodity, it is difficult for us to control it from being copied and disseminated, because the direct binding of the digital file with ...

AI Technical Summary

Problems solved by technology

The former type of DRM method can realize license management very safely and conveniently, but once the user cannot connect to the Internet, the protected digital file cannot be used, and the burden on the authorization server is also very heavy; the latter type of DRM method allows the user to Using protected digital files offline improves user experience, but license management becomes a new problem. Once licenses are copied and distributed together with digital files, it will make other unauthorized users Digital files are also available

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