发明名称 DIGITAL RIGHTS MANAGEMENT AND METHOD FOR PARTIAL ENCRYPTION OF CONTENT
摘要 A digital rights management system for selective partial encryption of contents and a method thereof are provided to shorten encryption time by making a digital rights management content format by partial encryption information. A digital rights management packager(100) processes contents into a partial encryption, and generates a digital rights management content format by adding partial encryption information to a header of the digital rights management content format. If an encrypted digital rights management content format is received by the digital rights management packager, wireless and wired terminals open the header of the digital rights management content format, and analyze the partial encryption information. The wireless and wired terminals decode the digital rights management content format, and perform a file.
申请公布号 KR20090016282(A) 申请公布日期 2009.02.13
申请号 KR20070080809 申请日期 2007.08.10
申请人 SK TELECOM CO., LTD. 发明人 JUNG, EUN SU;PARK, DUK HYUN;KIM, HOO JONG
分类号 H04L9/32 主分类号 H04L9/32
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