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21. 发明申请

US20190042296A1 Technologies For Securing Data Structures For Controlling Virtual Machines 审中-公开
公开(公告)号：US20190042296A1
公开(公告)日：2019-02-07
申请号：US16108453
申请日：2018-08-22
申请人： Prashant Dewan , Siddhartha Chhabra , Uttam Sengupta
发明人： Prashant Dewan , Siddhartha Chhabra , Uttam Sengupta
IPC分类号： G06F9/455 , G06F9/46 , G06F9/30 , H04L9/32
摘要： A data processing system with technology to secure a virtual machine control data structure (VMCDS) comprises random access memory (RAM) and a processor in communication with the RAM. The processor comprises virtualization technology that enables the processor to run a virtual machine monitor (VMM) in the data processing system and to run guest software in a virtual machine (VM) that is managed by the VMM. The VM is based at least in part on a VMCDS for the VM. An instruction decoder in the processor recognizes and dispatches a set-mask instruction. The set-mask instruction specifies access restrictions to be imposed on the VMM with respect to the VMCDS of the VM. The processor also comprises a mask enforcer to automatically enforce the access restrictions specified by the set-mask instruction, in response to an attempt by the VMM to access the VMCDS of the VM. Other embodiments are described and claimed.

22. 发明申请

US20190342093A1 CONVERGED CRYPTOGRAPHIC ENGINE 审中-公开
公开(公告)号：US20190342093A1
公开(公告)日：2019-11-07
申请号：US16457909
申请日：2019-06-28
申请人： Siddhartha Chhabra , Prashant Dewan
发明人： Siddhartha Chhabra , Prashant Dewan
IPC分类号： H04L9/08 , G06F21/60
摘要： An apparatus of a computing system, a computer-readable medium, a method and a system. The apparatus comprises one or more processors that are to communicate with a computing engine of the computing system and to: receive an instruction including information on a cryptographic key; determine whether a no-decrypt mode is to be active or inactive with respect to a read request from the computing engine; when receiving the read request to read content from a memory, and in response to a determination that the no-decrypt mode is inactive, decrypt the content using the key to generate a decrypted content and send the decrypted content to the computing engine; and in response to receiving the read request, and in response to a determination that the no-decrypt mode is active, send the content to the computing engine without decrypting the content.

23. 发明申请

US20170176524A1 SECURE REMOTE DEBUGGING OF SoCs 有权
公开(公告)号：US20170176524A1
公开(公告)日：2017-06-22
申请号：US14977998
申请日：2015-12-22
申请人： Prashant Dewan , Siddhartha Chhabra
发明人： Prashant Dewan , Siddhartha Chhabra
IPC分类号： G01R31/3177 , G01R31/317
CPC分类号： G01R31/3177 , G01R31/31705 , G01R31/3172 , G01R31/318544 , G06F11/3656 , G06F11/3664
摘要： Techniques for secure remote debugging of SoCs are described. The SoC includes an intellectual property (IP) block, a microcontroller, and a fabric coupled to the IP block and the microcontroller. The IP block transmits, via the fabric, information regarding events within the IP block to the microcontroller. The microcontroller executes firmware including a network stack and a remote debugger program. Using the firmware, the microcontroller provides the event information to a device external to the SoC.

24. 发明申请

US20190319789A1 Device ID for Memory Protection 审中-公开
公开(公告)号：US20190319789A1
公开(公告)日：2019-10-17
申请号：US16454476
申请日：2019-06-27
申请人： Siddhartha Chhabra , Prashant Dewan
发明人： Siddhartha Chhabra , Prashant Dewan
IPC分类号： H04L9/08 , G06F21/78 , G06F21/85
摘要： There is disclosed in one example a computing system, including: a processor; a memory; and a memory encryption engine (MEE) including circuitry and logic to: allocate a protected isolated memory region (IMR); encrypt the protected IMR; set an access control policy to allow access to the IMR by a device identified by a device identifier; and upon receiving a memory access request directed to the IMR, enforce the access control policy.

25. 发明申请

US20140044258A1 METHODS AND SYSTEMS FOR CRYPTOGRAPHIC ACCESS CONTROL OF VIDEO 有权
标题翻译：视频录像访问控制的方法与系统
公开(公告)号：US20140044258A1
公开(公告)日：2014-02-13
申请号：US13977529
申请日：2012-03-31
申请人： Karanvir S. Grewal , David Durham , Xiaozhu Kang , Men Long , Prashant Dewan
发明人： Karanvir S. Grewal , David Durham , Xiaozhu Kang , Men Long , Prashant Dewan
IPC分类号： H04N21/647
CPC分类号： H04N21/64715 , H04N21/23476 , H04N21/2541 , H04N21/266 , H04N21/4405 , H04N21/4627 , H04N21/8355
摘要： Methods and systems for cryptographic access control of multimedia video, include embedding as metadata access control policy (ACP) information, including authorization rules and cryptographic information tied to an encryption policy, into encrypted video. An authorized receiver device having credentials and/or capabilities matched to the authorization rules is able to extract the ACP information from the encrypted video and use it to decrypt and properly render the video.
摘要翻译：多媒体视频的密码访问控制方法和系统包括嵌入作为元数据访问控制策略（ACP）信息，包括与加密策略相关的授权规则和加密信息，加密视频。具有与授权规则匹配的凭证和/或能力的授权的接收机设备能够从加密的视频中提取ACP信息，并使用它来解密并适当地呈现视频。

26. 发明授权

US09094733B2 Methods and systems for cryptographic access control of video 有权
标题翻译：视频加密访问控制的方法和系统
公开(公告)号：US09094733B2
公开(公告)日：2015-07-28
申请号：US13977529
申请日：2012-03-31
申请人： Karanvir S. Grewal , David Durham , Xiaozhu Kang , Men Long , Prashant Dewan
发明人： Karanvir S. Grewal , David Durham , Xiaozhu Kang , Men Long , Prashant Dewan
IPC分类号： G06F21/62 , H04N21/647 , H04N21/266 , H04N21/4405 , H04N21/4627 , H04N21/8355 , H04L9/18
CPC分类号： H04N21/64715 , H04N21/23476 , H04N21/2541 , H04N21/266 , H04N21/4405 , H04N21/4627 , H04N21/8355
摘要： Cryptographic access control of multimedia video is presented. A method includes generating as metadata an access control policy (ACP) associated with video, the ACP including authorization rules and cryptographic information associated with an encryption policy; encrypting the video according to the encryption policy; and encoding the encrypted video with the authorization rules and the cryptographic information, which may be used to decrypt and render the encoded video. As an example, an authorized receiver device having credentials and/or capabilities matched to the authorization rules may extract the ACP information from the encrypted video and use it to decrypt and properly render the video. The method may further include visually encoding the encrypted video with at least portions of the authorization rules and the cryptographic information, such that the visually encoded video is renderable as the video by an authorized device, but is renderable as visually unintelligible video by an unauthorized device.
摘要翻译：介绍了多媒体视频的密码访问控制。一种方法包括：生成与视频相关联的访问控制策略（ACP）作为元数据，所述ACP包括与加密策略相关联的授权规则和加密信息; 根据加密策略加密视频; 并使用可用于解密和呈现编码视频的授权规则和密码信息对加密的视频进行编码。作为示例，具有与授权规则匹配的凭证和/或能力的授权接收机设备可以从加密的视频中提取ACP信息，并使用它来解密并适当地呈现视频。该方法还可以包括使用授权规则和密码信息的至少一部分来视觉地编码加密的视频，使得视觉编码的视频可以由授权设备呈现为视频，但是可被未经授权的设备呈现为视觉上难以理解的视频。

27. 发明申请

US20140095870A1 DEVICE, METHOD, AND SYSTEM FOR CONTROLLING ACCESS TO WEB OBJECTS OF A WEBPAGE OR WEB-BROWSER APPLICATION 审中-公开
标题翻译：用于控制访问网页或网络浏览器应用程序的WEB对象的设备，方法和系统
公开(公告)号：US20140095870A1
公开(公告)日：2014-04-03
申请号：US13631419
申请日：2012-09-28
申请人： Prashant Dewan , David M. Durham
发明人： Prashant Dewan , David M. Durham
IPC分类号： G06F21/00 , H04L9/32
CPC分类号： H04L9/3231 , G06F21/32 , H04L9/0866 , H04L63/0428 , H04L63/0861 , H04L67/02 , H04L67/42
摘要： A method and device for securely displaying web content with secure web objects across untrusted channels includes downloading web content from a web server. The web content includes tags that a web browser uses to authenticate the current user and identify encrypted web objects packaged in the web content. The computing device authenticates the current user using a biometric recognition procedure. If the current user is authenticated and determined to be authorized to view the decrypted web object, the encrypted web object is decrypted and displayed to the user. If the user is unauthenticated, the encrypted web object is displayed in place of the encrypted web object such that the decrypted web object is displayed for only authorized persons physically present at the computing device. The biometric recognition procedure and web object decryption processes are protected through secure media path circuitry and secure memory.
摘要翻译：用于在不受信任的频道上安全地显示具有安全web对象的web内容的方法和装置包括从Web服务器下载web内容。网页内容包括网页浏览器用来验证当前用户并识别打包在网页内容中的加密网页对象的标签。计算设备使用生物识别程序认证当前用户。如果当前用户被认证并被确定为被授权以查看解密的web对象，则加密的web对象被解密并显示给用户。如果用户未经身份验证，则加密的web对象被显示代替加密的web对象，使得被解密的web对象被显示给仅在物理存在于计算设备处的授权人员。生物识别程序和web对象解密过程通过安全媒体路径电路和安全存储器进行保护。

28. 发明授权

US08479295B2 Method and apparatus for transparently instrumenting an application program 有权
标题翻译：用于透明地调试应用程序的方法和装置
公开(公告)号：US08479295B2
公开(公告)日：2013-07-02
申请号：US13076378
申请日：2011-03-30
申请人： Ravi L. Sahita , David M. Durham , Prashant Dewan , Manohar R. Castelino
发明人： Ravi L. Sahita , David M. Durham , Prashant Dewan , Manohar R. Castelino
IPC分类号： G06F12/14 , G06F9/44
CPC分类号： G06F21/54 , G06F11/3644 , G06F21/566
摘要： Generally, this disclosure describes systems and methods for transparently instrumenting a computer process. The systems and methods are configured to allow instrumenting executable code while permitting legacy memory scanning tools to monitor corresponding uninstrumented executable code stored in memory.
摘要翻译：通常，本公开描述了用于透明地测试计算机进程的系统和方法。这些系统和方法被配置为允许检测可执行代码，同时允许旧的存储器扫描工具来监视存储在存储器中的相应的未被记录的可执行代码。

29. 发明申请

US20140041033A1 HARDWARE ENFORCED MEMORY ACCESS PERMISSIONS 有权
标题翻译：硬件执行存储器访问许可
公开(公告)号：US20140041033A1
公开(公告)日：2014-02-06
申请号：US13995360
申请日：2011-12-30
申请人： David M. Durham , Ravi L. Sahita , Prashant Dewan
发明人： David M. Durham , Ravi L. Sahita , Prashant Dewan
IPC分类号： G06F12/14
CPC分类号： G06F12/1458 , G06F21/121 , G06F21/50 , G06F21/79
摘要： Embodiments of apparatuses and methods for hardware enforced memory access permissions are disclosed. In one embodiment, a processor includes address translation hardware and memory access hardware. The address translation hardware is to support translation of a first address, used by software to access a memory, to a second address, used by the processor to access the memory. The memory access hardware is to detect an access permission violation.
摘要翻译：公开了用于硬件强制存储器访问许可的装置和方法的实施例。在一个实施例中，处理器包括地址转换硬件和存储器访问硬件。地址转换硬件是支持由软件使用的访问存储器的第一地址到由处理器使用以访问存储器的第二地址的翻译。内存访问硬件是检测访问权限冲突。

30. 发明申请

US20120255015A1 METHOD AND APPARATUS FOR TRANSPARENTLY INSTRUMENTING AN APPLICATION PROGRAM 有权
标题翻译：透明度测量应用程序的方法和设备
公开(公告)号：US20120255015A1
公开(公告)日：2012-10-04
申请号：US13076378
申请日：2011-03-30
申请人： Ravi L. Sahita , David M. Durham , Prashant Dewan , Manohar R. Castelino
发明人： Ravi L. Sahita , David M. Durham , Prashant Dewan , Manohar R. Castelino
IPC分类号： G06F11/00 , G06F9/44
CPC分类号： G06F21/54 , G06F11/3644 , G06F21/566
摘要： Generally, this disclosure describes systems and methods for transparently instrumenting a computer process. The systems and methods are configured to allow instrumenting executable code while permitting legacy memory scanning tools to monitor corresponding uninstrumented executable code stored in memory.
摘要翻译：通常，本公开描述了用于透明地测试计算机进程的系统和方法。这些系统和方法被配置为允许检测可执行代码，同时允许旧的存储器扫描工具来监视存储在存储器中的相应的未被记录的可执行代码。

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