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1.发明授权Rebinding of content title keys in clusters of devices with distinct security levels 有权在具有不同安全级别的设备群集中重新绑定内容标题密钥公开(公告)号：US08391481B2
公开(公告)日：2013-03-05
申请号：US12651382
申请日：2009-12-31
IPC分类号： H04L29/06
CPC分类号： H04L9/0836 , H04L9/0891 , H04L2209/601
摘要： According to one embodiment of the present invention, a system, method, and computer program product is provided for rebinding title keys in clusters of devices with distinct security levels in broadcast encryption systems. The method includes receiving a new management key and unbinding an encrypted title key with a previously used management key, the title key having a security class and residing in a title key block for a device having a security class, the device being in a cluster of devices including devices having a plurality of security classes. If the device security class is lower that the title key security class, the unbound title key is partially rebound with the new management key. the partially rebound title key is then saved in the title key block for the device.
摘要翻译： 根据本发明的一个实施例，提供了一种系统，方法和计算机程序产品，用于在广播加密系统中具有不同安全级别的设备群中重新标识标题密钥。 所述方法包括：接收新的管理密钥，并将加密的标题密钥与先前使用的管理密钥解除绑定，所述标题密钥具有安全级别，并且驻留在具有安全等级的设备的标题密钥块中，所述设备处于 设备包括具有多个安全等级的设备。 如果设备安全级别低于标题密钥安全级别，则使用新的管理密钥部分地弹出未绑定的标题密钥。 然后将部分反弹的标题密钥保存在设备的标题密钥块中。
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2.发明申请REBINDING OF CONTENT TITLE KEYS IN CLUSTERS OF DEVICES WITH DISTINCT SECURITY LEVELS 有权在具有不同安全级别的设备集群中重新配置内容标签公开(公告)号：US20110158404A1
公开(公告)日：2011-06-30
申请号：US12651382
申请日：2009-12-31
IPC分类号： H04L9/00
CPC分类号： H04L9/0836 , H04L9/0891 , H04L2209/601
摘要： According to one embodiment of the present invention, a system, method, and computer program product is provided for rebinding title keys in clusters of devices with distinct security levels in broadcast encryption systems. The method includes receiving a new management key and unbinding an encrypted title key with a previously used management key, the title key having a security class and residing in a title key block for a device having a security class, the device being in a cluster of devices including devices having a plurality of security classes. If the device security class is lower that the title key security class, the unbound title key is partially rebound with the new management key. the partially rebound title key is then saved in the title key block for the device.
摘要翻译： 根据本发明的一个实施例，提供了一种系统，方法和计算机程序产品，用于在广播加密系统中具有不同安全级别的设备群中重新标识标题密钥。 所述方法包括：接收新的管理密钥，并将加密的标题密钥与先前使用的管理密钥解除绑定，所述标题密钥具有安全级别，并且驻留在具有安全等级的设备的标题密钥块中，所述设备处于 设备包括具有多个安全等级的设备。 如果设备安全级别低于标题密钥安全级别，则使用新的管理密钥部分地弹出未绑定的标题密钥。 然后将部分反弹的标题密钥保存在设备的标题密钥块中。
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公开(公告)号：US08571209B2
公开(公告)日：2013-10-29
申请号：US12356067
申请日：2009-01-19
申请人： Thomas Alexander Bellwood , Robert Glenn Deen , Hongxia Jin , Jeffrey Bruce Lotspiech , Sigfredo Ismael Nin , Matthew Francis Rutkowski
发明人： Thomas Alexander Bellwood , Robert Glenn Deen , Hongxia Jin , Jeffrey Bruce Lotspiech , Sigfredo Ismael Nin , Matthew Francis Rutkowski
IPC分类号： H04L9/06
CPC分类号： H04L9/0822 , H04L9/16 , H04L63/06 , H04L2209/60 , H04L2209/606 , H04L2463/062 , H04N7/1675 , H04N21/2541 , H04N21/4334 , H04N21/4408 , H04N21/4627 , H04N21/63345
摘要： Embodiments of the invention relate to obtaining forensic information for an anonymous attack of digital content without variations in a broadcast encryption system. In one embodiment a media device, being configured to record digital content on recordable media, receives digital content, a unified media key block, and a recording key table. The device calculates a set of recording keys from the recording key table using a media key variant from the unified media key block. The device then generates a title key and encrypts by the digital content in the generated title key. The device then encrypts the generated title key in each one of the calculated recording keys, adds a header including the encrypted titles keys to the encrypted digital content, and stores the encrypted digital content with the header on recordable media.
摘要翻译： 本发明的实施例涉及获得无广播加密系统中的变化的数字内容的匿名攻击的取证信息。 在一个实施例中，被配置为在可记录介质上记录数字内容的媒体设备接收数字内容，统一媒体密钥块和记录密钥表。 该设备使用来自统一媒体密钥块的媒体密钥变体从记录密钥表计算一组记录密钥。 然后，该设备生成标题密钥，并通过生成的标题密钥中的数字内容进行加密。 然后，该设备对所计算的记录密钥中的每一个加密生成的标题密钥，将包括加密的标题密钥的标题添加到加密的数字内容，并将具有标题的加密的数字内容存储在可记录介质上。
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公开(公告)号：US09520993B2
公开(公告)日：2016-12-13
申请号：US11230022
申请日：2005-09-19
CPC分类号： H04L9/3268 , H04L9/083 , H04L9/0891 , H04L9/3247 , H04L63/061 , H04L2209/601 , H04L2209/606
摘要： The present invention provides a method performed on a computer of preventing re-use of compromised keys in a broadcast encryption system. In an exemplary embodiment, the method includes (1) incorporating a particular set of Sequence Keys assigned by a license agency into individual receivers, (2) assigning a Sequence Key Block (SKB) by the license agency to at least one distributed protected file, (3) performing incremental cryptographic testing by the individual receivers to determine if a selected Sequence Key from the set of Sequence Keys is compromised, (4) if the selected Sequence Key is not compromised, decrypting the file, and (5) if the selected Sequence Key is compromised and if a subsequent Sequence Key from the set of Sequence Keys is available, selecting the subsequent Sequence Key.
摘要翻译： 本发明提供一种在计算机上执行的防止在广播加密系统中重复使用受损密钥的方法。 在一个示例性实施例中，该方法包括（1）将由许可证代理机构分配的特定的一组序列密钥合并到单独的接收机中，（2）将许可代理机构的序列密钥块（SKB）分配给至少一个分布式受保护文件， （3）执行各个接收机的增量密码测试，以确定序列密钥集合中所选择的序列密钥是否受到损害，（4）如果所选择的序列密钥不受影响，解密该文件，以及（5）如果选定的 序列密钥被破坏，并且如果序列密钥集合中的后续序列密钥可用，则选择随后的序列密钥。
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公开(公告)号：US20100183148A1
公开(公告)日：2010-07-22
申请号：US12356067
申请日：2009-01-19
申请人： Thomas Alexander Bellwood , Robert Glen Deen , Hongxia Jin , Jeffrey Bruce Lotspiech , Sigfredo Ismael Nin , Matthew Francis Rutkowski
发明人： Thomas Alexander Bellwood , Robert Glen Deen , Hongxia Jin , Jeffrey Bruce Lotspiech , Sigfredo Ismael Nin , Matthew Francis Rutkowski
IPC分类号： H04L9/06
CPC分类号： H04L9/0822 , H04L9/16 , H04L63/06 , H04L2209/60 , H04L2209/606 , H04L2463/062 , H04N7/1675 , H04N21/2541 , H04N21/4334 , H04N21/4408 , H04N21/4627 , H04N21/63345
摘要： According to one embodiment of the present invention, a method for protecting content in a broadcast-encryption-based system, where the devices in the system receive a recording key table. Each device generates a set of recording keys from the recording key table using a media key variant calculated from the broadcast encryption system's media key block. The digital content is encrypted in a title key picked by the recorder. The selected title key is also encrypted in each one of the recorder's generated recording keys. To play back the content, a player uses one of its generated recording keys to decrypt the title key and the decrypt the content. The recording key table is designed so that any two devices are guaranteed to have at least one key in common during normal operation, although during a forensic situation, this rule can be abandoned.
摘要翻译： 根据本发明的一个实施例，一种用于保护基于广播加密的系统中的内容的方法，其中系统中的设备接收记录密钥表。 每个设备使用从广播加密系统的媒体密钥块计算的媒体密钥变体从记录密钥表生成一组记录密钥。 数字内容以记录器拾取的标题密钥加密。 所选择的标题密钥也在记录器生成的记录密钥中的每一个中被加密。 要播放内容，播放器使用其生成的记录密钥之一来解密标题密钥并对内容进行解密。 记录键表被设计成使得任何两个装置在正常操作期间被保证具有至少一个共同的钥匙，尽管在取证情况下，该规则可以被放弃。
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6.发明授权公开(公告)号：US08682903B2
公开(公告)日：2014-03-25
申请号：US12631826
申请日：2009-12-05
申请人： Robert Glenn Deen , Hongxia Jin
发明人： Robert Glenn Deen , Hongxia Jin
IPC分类号： G06F7/00
CPC分类号： G06F17/3002 , G06F17/30053 , G06F17/30097 , G06F17/30174
摘要： According to embodiments of the invention, a system, method and computer program product for a computer program product for synchronizing content directories on cluster devices are provided. Embodiments generate a binary tree for each device in a cluster of devices, the binary tree representing the locations of all copies of content residing in the device. The binary tree for a plurality of other devices in the cluster may be stored in each device the binary tree. The binary trees for the plurality of other devices may be used to determine availability of content and the available content may be displayed to a user.
摘要翻译： 根据本发明的实施例，提供了一种用于在群集设备上同步内容目录的用于计算机程序产品的系统，方法和计算机程序产品。 实施例为设备集群中的每个设备生成二叉树，二进制树表示驻留在设备中的所有内容副本的位置。 群集中多个其他设备的二叉树可以在二进制树中存储在每个设备中。 用于多个其他设备的二进制树可以用于确定内容的可用性，并且可以向用户显示可用内容。
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7.发明申请公开(公告)号：US20110137916A1
公开(公告)日：2011-06-09
申请号：US12631826
申请日：2009-12-05
申请人： Robert Glenn Deen , Hongxia Jin
发明人： Robert Glenn Deen , Hongxia Jin
IPC分类号： G06F7/00
CPC分类号： G06F17/3002 , G06F17/30053 , G06F17/30097 , G06F17/30174
摘要： According to embodiments of the invention, a system, method and computer program product for a computer program product for synchronizing content directories on cluster devices are provided. Embodiments generate a binary tree for each device in a cluster of devices, the binary tree representing the locations of all copies of content residing in the device. The binary tree for a plurality of other devices in the cluster may be stored in each device the binary tree. The binary trees for the plurality of other devices may be used to determine availability of content and the available content may be displayed to a user.
摘要翻译： 根据本发明的实施例，提供了一种用于在群集设备上同步内容目录的用于计算机程序产品的系统，方法和计算机程序产品。 实施例为设备集群中的每个设备生成二叉树，二进制树表示驻留在设备中的所有内容副本的位置。 群集中多个其他设备的二叉树可以在二进制树中存储在每个设备中。 用于多个其他设备的二进制树可以用于确定内容的可用性，并且可以向用户显示可用内容。
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公开(公告)号：US08713022B2
公开(公告)日：2014-04-29
申请号：US13597315
申请日：2012-08-29
申请人： Hongxia Jin , Yan Liu , Wenjun Zhou
发明人： Hongxia Jin , Yan Liu , Wenjun Zhou
CPC分类号： G06Q50/01
摘要： Embodiments of the invention relate to modeling communities associated with groups of data items. Tools are provided to iteratively assign data items to communities and to update topic and participant distribution in the assigned communities. As the distributions are updated, the characteristics of the communities are updated. Each activity area is defined from the perspective of a single user. Participants in a community are connected to a user, but not necessarily to each other. The combination of formations of communities and the statistical aspect of evaluating characteristics of the communities provides a multi-facetted organization of connections between data items and associated participants.
摘要翻译： 本发明的实施例涉及对与数据项组相关联的社区的建模。 提供工具以迭代地向社区分配数据项，并更新所分配社区中的主题和参与者分布。 随着发行版本的更新，社区的特征将被更新。 从单个用户的角度定义每个活动区域。 社区中的参与者连接到用户，但不一定相互联系。 社区组合和评估社区特征的统计方面的组合提供了数据项目和相关参与者之间的多方面的连接组织。
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公开(公告)号：US20140025368A1
公开(公告)日：2014-01-23
申请号：US13551808
申请日：2012-07-18
申请人： Hongxia Jin , Qihua Wang
发明人： Hongxia Jin , Qihua Wang
IPC分类号： G06F17/27
CPC分类号： G06F17/26 , G06F17/2755
摘要： Embodiments of the invention relate to a method, system, and computer program product to identify broken tag words of a data item and to replace the broken tag words with a compound word. Data items that have at least two tag words are examined to determine if the tag words are broken elements of a compound word. A computational assessment is conducted to determine a relationship between a set of compound words and an examined data item. Based upon the computational assessment a set of broken tag words may be replaced with a related compound word.
摘要翻译： 本发明的实施例涉及一种用于识别数据项的破坏的标签词并用复合词替换破坏的标签词的方法，系统和计算机程序产品。 检查具有至少两个标签词的数据项以确定标签词是否是复合词的元素。 进行计算评估以确定一组复合词与被检查数据项之间的关系。 基于计算评估，可以用相关的复合词替换一组破碎的标签词。
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公开(公告)号：US20130325861A1
公开(公告)日：2013-12-05
申请号：US13485062
申请日：2012-05-31
申请人： Hongxia Jin
发明人： Hongxia Jin
IPC分类号： G06F17/30
摘要： Embodiments of the invention relate to a modeling activity area associated with groups of data items. Tools are provided to profile activity area involvement, both from the data item and from associated participants. The data items are placed into clusters and one or more activity areas are derived from the formed clusters. Each activity area is defined from the perspective of a single user. Participants in an activity area are connected to a user, but not necessarily to each other. The combination of formations of clusters and activity areas provides a multi-facetted organization of connections between data items and associated participants.
摘要翻译： 本发明的实施例涉及与数据项组相关联的建模活动区域。 提供工具来描述活动区域的参与，无论是从数据项还是从相关的参与者。 数据项被放置成簇，并且从形成的簇导出一个或多个活动区域。 从单个用户的角度定义每个活动区域。 活动区域中的参与者连接到用户，但不一定彼此相关。 集群和活动区域的组合的组合提供了数据项和相关参与者之间的多方面的连接组织。
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