Contents rights protecting method

Abstract

A method for protecting a rights object for a content, wherein when a discard of a rights object with respect to a certain content is requested due to a missing of a terminal which stores the rights object with respect to the content, a rights issuer (Rl) receives a confirmation request for whether a certificate has been discarded from the terminal, confirms the certificate discard through an Online Certificate Status Protocol (OCSP) responder, and then notifies the terminal of the certificate discard, and accordingly the terminal confirms the discard of the certificate of the terminal and removes the rights object with respect thereto. In addition, a user who has removed the rights object with respect to the content can continuously use the corresponding content by entirely or partially re-obtaining the rights object with respect to the content from which the rights object has been discarded.

Description

technical field

[0001] The present invention relates to digital rights management (DRM), to a method for protecting rights objects related to content stored in a mobile communication terminal. Background technique

[0002] Recently, wired / wireless Internet and network technologies have been continuously developed, so companies providing digital content are also rapidly increasing, so that content in ordinary business affairs that was produced, stored and managed in analog format in the past has been digitized, and thus can be provided Various digital content. Compared with existing analog content, digital content has great advantages in production, processing and distribution. However, these advantages may lead to a violation of copyright and rights of the original author with respect to the content. In other words, the pirated version is the same as the genuine one. Therefore, consumers do not have a strong desire to purchase genuine content. Moreover, the content can e...

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