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1. 发明申请

WO2021051002A1 DYNAMIC BROADCAST CONTENT ACCESS MANAGEMENT SYSTEMS AND METHODS 审中-公开
公开(公告)号：WO2021051002A1
公开(公告)日：2021-03-18
申请号：PCT/US2020/050564
申请日：2020-09-11
申请人： INTERTRUST TECHNOLOGIES CORPORATION
发明人： CUGI, Guido , RUBINO, Vincenzo , CHAVANNE, Pierre , MÉNAND, Jean-René
IPC分类号： H04N21/4405 , H04N21/4623
摘要： This disclosure relates to, among other things, systems and methods for the secure management and distribution of electronic content over broadcast communication channels. Certain embodiments disclosed herein may allow for implementation of a multi-tenant conditional access system whereby a client device may configure itself between multiple broadcast service operators. Robust key generation and management techniques are also described that may use a derived key structure to protect control words used to descramble broadcast content, providing additional measures of security and implementation redundancy.

2. 发明申请

WO2015116855A1 SECURE APPLICATION PROCESSING SYSTEMS AND METHODS 审中-公开
标题翻译：安全应用处理系统和方法
公开(公告)号：WO2015116855A1
公开(公告)日：2015-08-06
申请号：PCT/US2015/013595
申请日：2015-01-29
申请人： INTERTRUST TECHNOLOGIES CORPORATION
发明人： ELLISON, Gary , BOCCON-GIBOD, Gilles , CHAVANNE, Pierre
IPC分类号： G06F21/10 , H04L9/14
CPC分类号： H04L63/0428 , G06F21/10 , G06F21/72 , H04L2463/061 , H04L2463/101
摘要： Systems and methods are described for securely and efficiently processing electronic content. In one embodiment, a first application running on a first computing system establishes a secure channel with a second computing system, the secure channel being secured by one or more cryptographic session keys. The first application obtains a license from the second computing system via the secure channel, the license being encrypted using at least one of the one or more cryptographic session keys, the license comprising a content decryption key, the content decryption key being further encrypted using at least one of the one or more cryptographic session keys or one or more keys derived therefrom. The first application invokes a second application to decrypt the license using at least one of the one or more cryptographic session keys, and further invokes the second application to decrypt the content decryption key using at least one of the one or more cryptographic session keys or one or more keys derived therefrom, and to decrypt a piece of content using the content decryption key. The first application then provides access to the decrypted piece of content in accordance with the license.
摘要翻译：描述了安全有效地处理电子内容的系统和方法。在一个实施例中，在第一计算系统上运行的第一应用与第二计算系统建立安全通道，所述安全通道由一个或多个加密会话密钥保护。所述第一应用程序经由所述安全通道从所述第二计算系统获得许可证，所述许可证使用所述一个或多个加密会话密钥中的至少一个加密，所述许可证包括内容解密密钥，所述内容解密密钥使用一个或多个加密会话密钥中的至少一个或从其导出的一个或多个密钥。第一应用程序使用至少一个或多个加密会话密钥来调用第二应用来解密许可证，并且还使用所述一个或多个加密会话密钥或一个或多个加密会话密钥中的至少一个来调用所述第二应用来解密所述内容解密密钥或更多的密钥，并且使用内容解密密钥对一条内容进行解密。然后，第一应用程序根据许可证提供对解密的内容片段的访问。

3. 发明申请

WO2018175623A1 MANAGED CONTENT DISTRIBUTION SYSTEMS AND METHODS 审中-公开
公开(公告)号：WO2018175623A1
公开(公告)日：2018-09-27
申请号：PCT/US2018/023615
申请日：2018-03-21
申请人： INTERTRUST TECHNOLOGIES CORPORATION , CUGI, Guido , LACY, Jack , NAGAO, Yutaka , CHAVANNE, Pierre
发明人： CUGI, Guido , LACY, Jack , NAGAO, Yutaka , CHAVANNE, Pierre
IPC分类号： H04N21/4627 , H04N21/4405 , H04N21/266 , H04N21/6334 , H04N21/4623
摘要： This disclosure relates to, among other things, systems and methods for managing the secure management and distribution of electronic content over broadcast and/or broadband communication channels. Certain embodiments disclosed herein may allow for implementation of a digital rights management service in connection with bidirectional communication channels and/or unidirectional communication channels, such as a broadcast signal. Various embodiments may allow for the generation and/or transmission of a digital rights management license in a field included in a broadcast signal. The license may be used by a client device to securely manage a received broadcast signal in accordance with associated rules and/or rights.

4. 发明申请

WO2014165284A1 SECURE TRANSACTION SYSTEMS AND METHODS 审中-公开
标题翻译：安全交易系统和方法
公开(公告)号：WO2014165284A1
公开(公告)日：2014-10-09
申请号：PCT/US2014/025085
申请日：2014-03-12
申请人： INTERTRUST TECHNOLOGIES CORPORATION
发明人： MAHER, David P. , CHAVANNE, Pierre , NAGAO, Yutaka , MANENTE, Michael
IPC分类号： G06Q20/40
CPC分类号： H04L63/08 , H04L9/3271 , H04L63/0492 , H04L2209/466
摘要： Systems and methods are described that use tag authentication and presence verification techniques in connection with a variety of transactions. In certain embodiments, an authentication device may verify the authenticity of a secure tag by determining whether the secure tag stores secret information provisioned by a trusted authority. In some embodiments, such an authentication process may be performed without exposing the secret information to the authentication device, thereby maintaining integrity of the secure tag. In other embodiments, insecure tags and/or tags that do not include secret information are used.
摘要翻译：描述了使用与各种事务有关的标签认证和存在验证技术的系统和方法。在某些实施例中，认证设备可以通过确定安全标签是否存储由可信管理机构提供的秘密信息来验证安全标签的真实性。在一些实施例中，可以执行这种认证处理，而不将秘密信息暴露给认证设备，从而保持安全标签的完整性。在其他实施例中，使用不包括秘密信息的不安全标签和/或标签。

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