Method for providing contents between user terminals supporting differment DRM methods each other in DRM gateway and DRM gateway of enabling the method

Abstract

A method of operating a Digital Rights Management (DRM) gateway for providing a user terminal with predetermined contents to which a DRM method is applied, the method including: receiving, from a first user terminal, DRM method information which a second user terminal supports and a contents transmission request encrypted according to the DRM method; requesting, according to the contents transmission request, encrypted contents corresponding to the DRM method from a contents providing server connected via a communication network; and receiving the encrypted contents from the contents providing server, and transmitting the encrypted contents to the second user terminal.

Description

technical field [0001] The invention discloses an operation method of a digital rights management (DRM) gateway for performing DRM conversion between terminals supporting different DRM (Digital Rights Management) methods and a DRM gateway using the method. More specifically, the present invention discloses a method for receiving an encrypted content transmission request from a first user terminal according to a DRM method supported by a second user terminal and transmitting the encrypted content to a second user terminal according to the above-mentioned DRM method. 2. The DRM operation method of the user terminal and the DRM gateway. Background technique [0002] Due to the rapid development of today's technology, multimedia content providing services for providing multimedia content to user terminals have become more and more common. Therefore, it is substantially required to apply digital rights management (DRM) to multimedia content for protecting the copyright of conten...

AI Technical Summary

Problems solved by technology

[0010] Similar to the above, since the content providing server of the related art can only provide the content encrypted according to a predetermined DRM method, there is a defect that the content encrypted with a different DRM method cannot be provided

[0011] In particular, in figure 1 In this case, when the user wants to use the second user terminal 103 to play the same content after using the first user terminal 101 to play and output the content, although the user can transfer the content from the first user terminal 101 is transmitted to the second user terminal 103, but when the DRM methods supported by the first user terminal 101 and the second user terminal 103 are different, there will be a defect, that is, from the first user terminal The content transmitted from machine 101 to the second user terminal machine 103 cannot be played

[0012] And, since the content providing server according to the prior art protects the content simply by using one DRM method, there is a defect that the content encrypted using a different DRM method cannot be provided

[0013] After the user utilizes the first user terminal 101 to download the content provided by the first content providing server 102, when the user wants to download the same or different content to another terminal of the user, there is a defect, namely The content downloaded from the first content providing server 102 cannot be played when the DRM method supported by the second user terminal 103 is different from the method provided by the first content providing server 102

[0014] Therefore, according to the prior art, there is a limitation that since the method of receiving and transmitting multimedia content is generally used in a user terminal, but switching between a plurality of DRMs is not provided, the user cannot protect the content. Freedom to exploit its content while copyright

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