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1. 发明授权

US09489498B2 Digital rights management using trusted processing techniques 有权
标题翻译：使用可信处理技术进行数字版权管理
公开(公告)号：US09489498B2
公开(公告)日：2016-11-08
申请号：US14319659
申请日：2014-06-30
申请人： InterDigital Technology Corporation
发明人： Inhyok Cha , Yogendra C. Shah , Amit Singhal
IPC分类号： G06F21/10 , G06F21/57 , H04L29/06 , H04L9/32
CPC分类号： G06F21/10 , G06F21/57 , H04L9/3247 , H04L63/12 , H04L63/20
摘要： The present invention discloses several methods to strengthen the integrity of entities, messages, and processing related to content distribution as defined by the Open Mobile Alliance (OMA) Digital Rights Management (DRM). The methods use techniques related to the Trusted Computing Group (TCG) specifications. A first embodiment uses TCG techniques to verify platform and DRM software integrity or trustworthiness, both with and without modifications to the DRM rights object acquisition protocol (ROAP) and DRM content format specifications. A second embodiment uses TCG techniques to strengthen the integrity of ROAP messages, constituent information, and processing without changing the existing ROAP protocol. A third embodiment uses TCG techniques to strengthen the integrity of the ROAP messages, information, and processing with some changes to the existing ROAP protocol.
摘要翻译：本发明公开了加强与由开放移动联盟（OMA）数字版权管理（DRM）定义的内容分发有关的实体，消息和处理的完整性的几种方法。该方法使用与可信计算组（TCG）规范相关的技术。第一实施例使用TCG技术来验证平台和DRM软件完整性或可信赖性，无论是否修改DRM权限对象获取协议（ROAP）和DRM内容格式规范。第二实施例使用TCG技术来加强ROAP消息，组成信息和处理的完整性，而不改变现有的ROAP协议。第三个实施例使用TCG技术来加强ROAP消息，信息和处理的完整性，并对现有的ROAP协议进行一些改变。

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