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1. 发明申请

US20060159264A1 System for denying access to content generated by a compromised off line encryption device and for conveying cryptographic keys from multiple conditional access systems 审中-公开
公开(公告)号：US20060159264A1
公开(公告)日：2006-07-20
申请号：US11295424
申请日：2005-12-06
申请人： Annie Chen , Lawrence Tang , Akkio Wakabayashi
发明人： Annie Chen , Lawrence Tang , Akkio Wakabayashi
IPC分类号： H04N7/167
CPC分类号： H04N21/23473 , H04N7/162 , H04N7/1675 , H04N7/17336 , H04N21/26609 , H04N21/47202
摘要： A method for forwarding messages containing cryptographic keys from a conditional access system that controls a population of set-top boxes to an encryption renewal system. The method includes storing a fictitious address of a virtual set-top box; generating a message based on the fictitious address, the message containing a cryptographic key; and forwarding the message to the fictitious address of the virtual set-top box. The encryption renewal system has information regarding the virtual set-top box, and is the receipient of the message. In addition, the encryption renewal system is for controlling access to pre-encrypted content generated by an encryption device. The system includes software instructions for receiving a request to retrofit an entitlement control message that allows a home device to access pre-encrypted content; and software instructions for retrofitting the entitlement control message only after verifying that the pre-encrypted content was generated prior to or contemporaneous with an authorized timestamp.

2. 发明授权

US06804782B1 Countermeasure to power attack and timing attack on cryptographic operations 有权
标题翻译：电力攻击和加密操作定时攻击的对策
公开(公告)号：US06804782B1
公开(公告)日：2004-10-12
申请号：US09373866
申请日：1999-08-13
申请人： Xin Qiu , Eric J. Sprunk , Daniel Z. Simon , Lawrence Tang , Lawrence R. Cook
发明人： Xin Qiu , Eric J. Sprunk , Daniel Z. Simon , Lawrence Tang , Lawrence R. Cook
IPC分类号： G06F1130
CPC分类号： G06F9/3001 , G06F2207/7219 , H04L9/003 , H04L9/005 , H04L9/3013 , H04L9/302
摘要： A cryptography circuit provides secure processing of data by utilizing countermeasures that combat timing and power attacks. Superfluous operations such as multiplication operations, modular reductions by an integer, storage of data to memory are available for use by a processor to disguise the amount of power usage and the amount of time required to perform a cryptographic operation. A cryptographic key is available for use in order to trigger when these emulated operations occur. The occurrences of the emulated operations is controlled by the user to provide the preferred tradeoff between security and use of resources.
摘要翻译：加密电路通过利用对抗定时和电源攻击的对策来提供对数据的安全处理。多余的操作，例如乘法运算，整数模块化减少，数据存储到存储器可供处理器使用，以掩盖功率使用量和执行加密操作所需的时间。可以使用加密密钥来在这些仿真操作发生时触发。仿真操作的发生由用户控制，以提供资源的安全性和使用之间的首选权衡。

3. 发明申请

US20060069645A1 Method and apparatus for providing secured content distribution 审中-公开
标题翻译：用于提供安全内容分发的方法和装置
公开(公告)号：US20060069645A1
公开(公告)日：2006-03-30
申请号：US11216335
申请日：2005-08-31
申请人： Annie Chen , John Okimoto , Lawrence Tang
发明人： Annie Chen , John Okimoto , Lawrence Tang
IPC分类号： H04L9/00
CPC分类号： H04L9/0833 , H04L63/0464 , H04L2209/60 , H04N7/165 , H04N7/1675 , H04N7/17318 , H04N21/2225 , H04N21/26606 , H04N21/42684 , H04N21/43615 , H04N21/4367 , H04N21/4788 , H04N21/63345
摘要： A method and apparatus for providing secured content distribution using a media hub is disclosed. In one embodiment, conditional access encrypted content is received at the media hub. The conditional access encrypted content is decrypted. The content is re-encrypted in accordance with a unique tier associated with the media hub and one or more devices in response to a request from at least one device associated with the unique tier. The re-encrypted content is provided to the at least one device in response to the request from the at least one device associated with the unique tier. A method and apparatus for providing secured content distribution is disclosed. In one embodiment, unit addresses (UAs) of all components within a home media architecture are obtained. A unique key is generated for the home media architecture using public information from the UA of each component. A message including the unique key is distributed to each component of the home media architecture. A method and apparatus for providing secured content distribution is disclosed. In one embodiment, UAs of all decoders within a home media architecture are obtained. A unique key is generated for the home media architecture using public information from the UA of each decoder. A message including the unique key is distributed to each decoder of the home media architecture.
摘要翻译：公开了一种使用媒体集线器提供安全的内容分发的方法和装置。在一个实施例中，在媒体集线器处接收条件访问加密内容。条件访问加密内容被解密。响应于来自与唯一层相关联的至少一个设备的请求，内容根据与媒体集线器和一个或多个设备相关联的唯一层重新加密。响应于来自与所述唯一层相关联的至少一个设备的请求，将所述重新加密的内容提供给所述至少一个设备。公开了一种提供安全内容分发的方法和装置。在一个实施例中，获得家庭媒体架构内的所有组件的单元地址（UA）。使用来自每个组件的UA的公共信息为家庭媒体架构生成唯一的密钥。包含唯一密钥的消息被分发到家庭媒体架构的每个组件。公开了一种提供安全内容分发的方法和装置。在一个实施例中，获得家庭媒体架构内的所有解码器的UA。使用来自每个解码器的UA的公共信息为家庭媒体架构生成唯一的密钥。包括唯一密钥的消息被分发到家庭媒体架构的每个解码器。

4. 发明申请

US20110321024A1 METHOD AND APPARATUS FOR UPDATING AN EXECUTING APPLICATION 审中-公开
标题翻译：更新执行应用程序的方法和装置
公开(公告)号：US20110321024A1
公开(公告)日：2011-12-29
申请号：US12824950
申请日：2010-06-28
申请人： Dennis Knothe , Lawrence Tang
发明人： Dennis Knothe , Lawrence Tang
IPC分类号： G06F9/44 , G06F3/048 , G06F3/14
CPC分类号： G06F3/0488 , G06F8/656
摘要： An approach is provided for updating an application such as a widget. An update platform receives a request to update an application executing on a device. Execution of the application retrieves all or a portion of stored code associated with the application from a storage memory of the device and places the retrieved stored code as executing code in an execution memory of the device. The update platform determines whether updated code corresponding to the application is available based, at least in part, on the request and determines to retrieve the updated code if available. The update platform then determines to replace all or a portion of the stored code with the updated code without affecting the executing code.
摘要翻译：提供了一种用于更新诸如小部件的应用的方法。更新平台接收更新在设备上执行的应用的请求。应用程序的执行从设备的存储存储器检索与应用程序相关联的所有或一部分存储代码，并将检索到的存储代码作为执行代码放置在设备的执行存储器中。至少部分地基于请求，更新平台确定对应于应用的更新的代码是否可用，并且如果可用，则确定检索更新的代码。更新平台然后确定用所更新的代码替换所有或一部分存储的代码，而不影响执行代码。

5. 发明申请

US20080101614A1 Method and Apparatus for Providing Secured Content Distribution 审中-公开
标题翻译：提供安全内容分发的方法和装置
公开(公告)号：US20080101614A1
公开(公告)日：2008-05-01
申请号：US11955124
申请日：2007-12-12
申请人： Annie Chen , John Okimoto , Lawrence Tang
发明人： Annie Chen , John Okimoto , Lawrence Tang
IPC分类号： H04L9/08
CPC分类号： H04L9/083 , H04L2209/60 , H04N5/913 , H04N7/1675 , H04N21/43615 , H04N21/4405 , H04N21/4408 , H04N21/47202 , H04N21/64 , H04N2005/91364
摘要： A method and apparatus for providing secured content distribution using a media hub is disclosed. In one embodiment, conditional access encrypted content is received at the media hub. The conditional access encrypted content is decrypted. The content is re-encrypted in accordance with a unique tier associated with the media hub and one or more devices in response to a request from at least one device associated with the unique tier. The re-encrypted content is provided to the at least one device in response to the request from the at least one device associated with the unique tier. A method and apparatus for providing secured content distribution is disclosed. In one embodiment, unit addresses (UAs) of all components within a home media architecture are obtained. A unique key is generated for the home media architecture using public information from the UA of each component. A message including the unique key is distributed to each component of the home media architecture. A method and apparatus for providing secured content distribution is disclosed. In one embodiment, UAs of all decoders within a home media architecture are obtained. A unique key is generated for the home media architecture using public information from the UA of each decoder. A message including the unique key is distributed to each decoder of the home media architecture.
摘要翻译：公开了一种使用媒体集线器提供安全的内容分发的方法和装置。在一个实施例中，在媒体集线器处接收条件访问加密内容。条件访问加密内容被解密。响应于来自与唯一层相关联的至少一个设备的请求，内容根据与媒体集线器和一个或多个设备相关联的唯一层重新加密。响应于来自与所述唯一层相关联的至少一个设备的请求，将所述重新加密的内容提供给所述至少一个设备。公开了一种提供安全内容分发的方法和装置。在一个实施例中，获得家庭媒体架构内的所有组件的单元地址（UA）。使用来自每个组件的UA的公共信息为家庭媒体架构生成唯一的密钥。包含唯一密钥的消息被分发到家庭媒体架构的每个组件。公开了一种提供安全内容分发的方法和装置。在一个实施例中，获得家庭媒体架构内的所有解码器的UA。使用来自每个解码器的UA的公共信息为家庭媒体架构生成唯一的密钥。包括唯一密钥的消息被分发到家庭媒体架构的每个解码器。

6. 发明申请

US20070091345A1 Method to leverage a secure device to grant trust and identity to a second device 有权
标题翻译：利用安全设备向第二设备授予信任和身份的方法
公开(公告)号：US20070091345A1
公开(公告)日：2007-04-26
申请号：US11255113
申请日：2005-10-20
申请人： Xin Qiu , Bridget Kimball , Eric Sprunk , Lawrence Tang
发明人： Xin Qiu , Bridget Kimball , Eric Sprunk , Lawrence Tang
IPC分类号： G06K15/00
CPC分类号： H04L9/083 , H04L9/0841 , H04L63/0428 , H04L2463/062
摘要： According to one embodiment of the invention a system is utilized to leverage the security arrangement between a first and second device to establish a secure link between the first device and a third device. One embodiment of the invention is particularly suitable for loading security data on a set top box, such as that utilized in the cable television industry.
摘要翻译：根据本发明的一个实施例，利用系统利用第一和第二设备之间的安全布置来建立第一设备和第三设备之间的安全链路。本发明的一个实施例特别适合于将安全数据加载在诸如有线电视工业中使用的机顶盒上。

7. 发明申请

US20050157877A1 System for denying access to content generated by a compromised off line encryption device and for conveying cryptographic keys from multiple conditional access systems 有权
标题翻译：用于拒绝访问由受损的离线加密设备生成的内容并用于从多个条件访问系统传送加密密钥的系统
公开(公告)号：US20050157877A1
公开(公告)日：2005-07-21
申请号：US11077298
申请日：2005-03-09
申请人： Annie Chen , Lawrence Tang , Akiko Wakabayashi
发明人： Annie Chen , Lawrence Tang , Akiko Wakabayashi
IPC分类号： H04N7/16 , H04N7/167 , H04N7/173
CPC分类号： H04N21/23473 , H04N7/165 , H04N7/1675 , H04N7/17336 , H04N21/2225 , H04N21/23106 , H04N21/2347 , H04N21/2541 , H04N21/2543 , H04N21/26606 , H04N21/26609 , H04N21/4143 , H04N21/4405 , H04N21/44204 , H04N21/4627 , H04N21/47202 , H04N21/47211 , H04N21/63345 , H04N21/63775 , H04N21/6405 , H04N21/6587 , H04N21/8355 , H04N21/8549
摘要： A method for forwarding messages containing cryptographic keys from a conditional access system that controls a population of set-top boxes to an encryption renewal system. The method includes storing a fictitious address of a virtual set-top box; generating a message based on the fictitious address, the message containing a cryptographic key; and forwarding the message to the fictitious address of the virtual set-top box. The encryption renewal system has information regarding the virtual set-top box, and is the receipient of the message. In addition, the encryption renewal system is for controlling access to pre-encrypted content generated by an encryption device. The system includes software instructions for receiving a request to retrofit an entitlement control message that allows a home device to access pre-encrypted content; and software instructions for retrofitting the entitlement control message only after verifying that the pre-encrypted content was generated prior to or contemporaneous with an authorized timestamp.
摘要翻译：一种从条件访问系统转发包含加密密钥的消息的方法，所述条件访问系统将机顶盒的数量控制到加密更新系统。该方法包括存储虚拟机顶盒的虚拟地址; 基于虚构地址生成消息，该消息包含加密密钥; 并将消息转发到虚拟机顶盒的虚拟地址。加密更新系统具有关于虚拟机顶盒的信息，并且是消息的接收者。此外，加密更新系统用于控制对由加密设备生成的预加密内容的访问。该系统包括用于接收改变允许家庭设备访问预加密内容的授权控制消息的请求的软件指令; 以及仅在验证预先加密的内容在授权时间戳之前或同时生成的情况下，才能修改授权控制消息的软件指令。

8. 发明申请

US20130129080A1 SYSTEM AND METHOD FOR AUTHENTICATING DATA WHILE MINIMIZING BANDWIDTH 审中-公开
标题翻译：用于认证带宽最小化数据的系统和方法
公开(公告)号：US20130129080A1
公开(公告)日：2013-05-23
申请号：US13301219
申请日：2011-11-21
申请人： Lawrence Tang , Kenneth P. Miller , Christopher J. Bennett
发明人： Lawrence Tang , Kenneth P. Miller , Christopher J. Bennett
IPC分类号： H04L9/28
摘要： Systems and methods for data authentication can comprise processing a first secret element to generate a first encrypted secret element, processing a second secret element to generate a non-secret element, and processing the first encrypted secret element and the non-secret element to generate an encrypted data block.
摘要翻译：用于数据认证的系统和方法可以包括处理第一秘密元素以生成第一加密秘密元素，处理第二秘密元素以生成非秘密元素，以及处理第一加密秘密元素和非秘密元素以产生加密数据块。

9. 发明申请

US20060150252A1 Method and apparatus for providing a border guard between security domains 有权
标题翻译：用于在安全域之间提供边界防护的方法和装置
公开(公告)号：US20060150252A1
公开(公告)日：2006-07-06
申请号：US11027206
申请日：2004-12-30
申请人： John Okimoto , Bridget Kimball , Annie Chen , Michael Habrat , Douglas Petty , Eric Sprunk , Lawrence Tang
发明人： John Okimoto , Bridget Kimball , Annie Chen , Michael Habrat , Douglas Petty , Eric Sprunk , Lawrence Tang
IPC分类号： H04N7/16
CPC分类号： G06F21/10 , H04N7/1675 , H04N21/4147 , H04N21/4405 , H04N21/4408 , H04N21/8355
摘要： The present invention discloses an apparatus and method for defining and enforcing rules of transition between two security domains, e.g., a transport domain and a persistent security domain. In turn, a border guard, e.g., a security device, is provided between these two domains that enforce rules for transition between the two security domains. This novel approach of defining a transport domain and a persistent security domain simplifies the classification of the digital content and its movement through the system. Namely, the border guard once established between the two systems can enforce DRM rules associated with how contents are moved between the two domains.
摘要翻译：本发明公开了一种用于定义和实施两个安全域（例如传输域和持久安全域）之间的转换规则的装置和方法。反过来，在这两个域之间提供边界警卫，例如安全装置，这两个域执行两个安全域之间的转换规则。这种定义传输域和持久安全域的新颖方法简化了数字内容的分类及其通过系统的移动。也就是说，在两个系统之间建立的边界守卫可以实施与内容在两个域之间移动的相关联的DRM规则。

10. 发明授权

US10797864B2 System and method for authenticating data while minimizing bandwidth 有权
公开(公告)号：US10797864B2
公开(公告)日：2020-10-06
申请号：US13301219
申请日：2011-11-21
申请人： Lawrence Tang , Kenneth P. Miller , Christopher J. Bennett
发明人： Lawrence Tang , Kenneth P. Miller , Christopher J. Bennett
IPC分类号： H04L9/28 , H04L9/08
摘要： Systems and methods for data authentication can comprise processing a first secret element to generate a first encrypted secret element, processing a second secret element to generate a non-secret element, and processing the first encrypted secret element and the non-secret element to generate an encrypted data block.

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