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公开(公告)号：US20150312524A1
公开(公告)日：2015-10-29
申请号：US14494707
申请日：2014-09-24
申请人： Balaji Vembu , Scott Janus , Changliang Wang
发明人： Balaji Vembu , Scott Janus , Changliang Wang
IPC分类号： H04N7/167
CPC分类号： H04N21/2347 , H04N21/4181 , H04N21/4405
摘要： Encryption and encoding of video and/or audio may be implemented on an integrated circuit before being transmitted wirelessly to a remote adapter for display.
摘要翻译： 视频和/或音频的加密和编码可以在被无线地传输到远程适配器进行显示之前在集成电路上实现。
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公开(公告)号：US20090172331A1
公开(公告)日：2009-07-02
申请号：US12006282
申请日：2007-12-31
申请人： Balaji Vembu , Aditya Sreenivas , Wishwesh Gandhi , Sathyamurthi Sadhasivan , Gary Graunke , Scott Janus , Murali Ramadoss
发明人： Balaji Vembu , Aditya Sreenivas , Wishwesh Gandhi , Sathyamurthi Sadhasivan , Gary Graunke , Scott Janus , Murali Ramadoss
IPC分类号： G06F21/00
摘要： A graphics engine may include a decryption device, a renderer, and a sprite or overlay engine, all connected to a display. A memory may have a protected and non-protected portions in one embodiment. An application may store encrypted content on the non-protected portion of said memory. The decryption device may access the encrypted material, decrypt the material, and provide it to the renderer engine of a graphics engine. The graphics engine may then process the decrypted material using the protected portion of the memory. Only graphics devices can access the protected portion of the memory in at least one mode, preventing access by outside sources. In addition, the protected memory may be stolen memory that is not identified to the operating system, making that stolen memory inaccessible to applications running on the operating system.
摘要翻译： 图形引擎可以包括全部连接到显示器的解密设备，渲染器和子画面或覆盖引擎。 在一个实施例中，存储器可以具有受保护和非保护部分。 应用可以将加密的内容存储在所述存储器的非保护部分上。 解密设备可以访问加密的材料，解密材料，并将其提供给图形引擎的渲染器引擎。 然后，图形引擎可以使用存储器的受保护部分来处理解密的材料。 只有图形设备才能以至少一种模式访问存储器的受保护部分，从而防止外部源的访问。 此外，受保护的存储器可能是未被识别到操作系统的被盗存储器，使得被盗的存储器不能在操作系统上运行的应用程序访问。
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公开(公告)号：US20180191494A1
公开(公告)日：2018-07-05
申请号：US15394324
申请日：2016-12-29
摘要： An embodiment of a graphics apparatus may include a graphics processor including a kernel executor, and a security engine communicatively coupled to the graphics processor. The security engine may be configured to create a kernel security key, encrypt an executable kernel for the kernel executor in accordance with the kernel security key, and share the kernel security key with the graphics processor.
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公开(公告)号：US20150086012A1
公开(公告)日：2015-03-26
申请号：US14036263
申请日：2013-09-25
申请人： Siddhartha Chhabra , Uday R. Savagaonkar , Prashant Dewan , David M. Durham , Balaji Vembu , Xiaozhu Kang , Scott Janus , Jason Martin , Vincent R. Scarlata
发明人： Siddhartha Chhabra , Uday R. Savagaonkar , Prashant Dewan , David M. Durham , Balaji Vembu , Xiaozhu Kang , Scott Janus , Jason Martin , Vincent R. Scarlata
IPC分类号： H04N7/167
CPC分类号： G06F21/82 , G06F21/84 , G06F21/85 , H04N21/4122 , H04N21/4143 , H04N21/4367
摘要： Systems and methods for secure delivery of output surface bitmaps to a display engine. An example processing system comprises: an architecturally protected memory; and a processing core communicatively coupled to the architecturally protected memory, the processing core comprising a processing logic configured to implement an architecturally-protected execution environment by performing at least one of: executing instructions residing in the architecturally protected memory and preventing an unauthorized access to the architecturally protected memory; wherein the processing logic is further configured to provide a secure video output path by generating an output surface bitmap encrypted with a first encryption key and storing an encrypted first encryption key in an external memory, wherein the encrypted first encryption key is produced by encrypting the first encryption key with a second encryption key.
摘要翻译： 用于将输出表面位图安全传递到显示引擎的系统和方法。 一个示例处理系统包括：架构受保护的存储器; 以及处理核心，其通信地耦合到所述体系结构保护的存储器，所述处理核心包括处理逻辑，所述处理逻辑被配置为通过执行以下中的至少一个来实现架构保护的执行环境：执行驻留在架构保护的存储器中的指令， 建筑保护记忆; 其中所述处理逻辑还被配置为通过生成用第一加密密钥加密并将加密的第一加密密钥存储在外部存储器中的输出表面位图来提供安全视频输出路径，其中所述加密的第一加密密钥是通过加密所述第一加密密钥 具有第二加密密钥的加密密钥。
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公开(公告)号：US09501668B2
公开(公告)日：2016-11-22
申请号：US14036263
申请日：2013-09-25
申请人： Siddhartha Chhabra , Uday R. Savagaonkar , Prashant Dewan , David M. Durham , Balaji Vembu , Xiaozhu Kang , Scott Janus , Jason Martin , Vincent R. Scarlata
发明人： Siddhartha Chhabra , Uday R. Savagaonkar , Prashant Dewan , David M. Durham , Balaji Vembu , Xiaozhu Kang , Scott Janus , Jason Martin , Vincent R. Scarlata
IPC分类号： H04N7/167 , G06F21/82 , G06F21/84 , G06F21/85 , H04N21/41 , H04N21/4143 , H04N21/4367
CPC分类号： G06F21/82 , G06F21/84 , G06F21/85 , H04N21/4122 , H04N21/4143 , H04N21/4367
摘要： Systems and methods for secure delivery of output surface bitmaps to a display engine. An example processing system comprises: an architecturally protected memory; and a processing core communicatively coupled to the architecturally protected memory, the processing core comprising a processing logic configured to implement an architecturally-protected execution environment by performing at least one of: executing instructions residing in the architecturally protected memory and preventing an unauthorized access to the architecturally protected memory; wherein the processing logic is further configured to provide a secure video output path by generating an output surface bitmap encrypted with a first encryption key and storing an encrypted first encryption key in an external memory, wherein the encrypted first encryption key is produced by encrypting the first encryption key with a second encryption key.
摘要翻译： 用于将输出表面位图安全传递到显示引擎的系统和方法。 一个示例处理系统包括：架构受保护的存储器; 以及处理核心，其通信地耦合到所述体系结构保护的存储器，所述处理核心包括处理逻辑，所述处理逻辑被配置为通过执行以下中的至少一个来实现架构保护的执行环境：执行驻留在所述体系结构保护的存储器中的指令， 建筑保护记忆; 其中所述处理逻辑还被配置为通过生成用第一加密密钥加密并将加密的第一加密密钥存储在外部存储器中的输出表面位图来提供安全视频输出路径，其中所述加密的第一加密密钥是通过加密所述第一加密密钥 具有第二加密密钥的加密密钥。
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公开(公告)号：US09531916B2
公开(公告)日：2016-12-27
申请号：US13996890
申请日：2011-12-30
申请人： Scott Janus , Jason Martin , Uday Savagaonkar
发明人： Scott Janus , Jason Martin , Uday Savagaonkar
CPC分类号： H04L9/0637 , G06F21/6209 , G06T1/20 , H04L2209/08 , H04N1/4486
摘要： In general, in one aspect, noise is injected into a bitmap associated with content to be presented on a display to create a noisy bitmap. The noisy bitmap is encrypted using electronic code book (ECB) encryption. The resulting ciphertext does not include recognizable patterns from the content as is typical with ECB encryption. The injection of noise may include modifying pixel values for at least a subset of pixels in the bitmap. The pixel values may be modified by using a counter, a known modification pattern, or a random number generator. The bitmap may be analyzed to determine how the bitmap can be modified to maximize the randomness of the bitmap while ensuring that the noisy bitmap is visually perceptually similar when presented. The noise may be injected into a block of pixels prior to the block being encrypted.
摘要翻译： 通常，在一个方面，将噪声注入到与将要呈现在显示器上的内容相关联的位图中以产生噪声位图。 噪声位图使用电子代码簿（ECB）加密进行加密。 所得到的密文不包括来自内容的可识别模式，如ECB加密典型。 噪声的注入可以包括修改位图中的至少像素子集的像素值。 可以通过使用计数器，已知修改模式或随机数生成器来修改像素值。 可以分析位图以确定位图如何被修改以使位图的随机性最大化，同时确保在呈现时视觉上感觉上类似的噪声位图。 在块被加密之前，可以将噪声注入到像素块中。
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7.发明授权公开(公告)号：US08994241B2
公开(公告)日：2015-03-31
申请号：US13729652
申请日：2012-12-28
申请人： Scott Janus , David R Sokolowski
发明人： Scott Janus , David R Sokolowski
CPC分类号： H04L9/12 , H04L9/14 , H04L2209/30 , H04L2209/60 , H04N7/167 , H04N21/4126 , H04N21/41407 , H04N21/42623 , H04N21/42653 , H04N21/44004 , H04N21/44012 , H04N21/4408
摘要： In general, in one aspect, a multi-content composition pipeline encrypts protected video streams that may be utilized as part of a composite window using different encryption keys so that each encrypted video stream has a unique security domain. The protected video streams may be received as encrypted and compressed video streams that are decrypted and decoded (decompressed) and then the decompressed video streams may be encrypted. The encryption keys used to encrypt the decompressed video stream may be related to the encryption keys used to decrypt the corresponding encrypted compressed video stream. The encrypted decompressed video streams are stored in memory until they are needed for generating the composite window at which point they are read from memory and decrypted. The composite window is generated from the decrypted uncompressed video streams and possibly other content in real time and thus is not stored in memory prior to transmission to a display.
摘要翻译： 通常，在一个方面，多内容组合流水线加密受保护的视频流，其可以使用不同的加密密钥来使用作为组合窗口的一部分，使得每个加密的视频流具有唯一的安全域。 受保护的视频流可以作为经解密和解码（解压缩）的经加密和压缩的视频流来接收，然后解压缩的视频流可被加密。 用于加密解压缩视频流的加密密钥可以与用于解密对应的加密压缩视频流的加密密钥有关。 加密的解压缩视频流被存储在存储器中，直到它们被需要用于生成复合窗口，此时它们从存储器读取并被解密。 复合窗口从解密的未压缩视频流和可能的其他内容实时生成，因此在传输到显示器之前不存储在存储器中。
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公开(公告)号：US20140013422A1
公开(公告)日：2014-01-09
申请号：US13540869
申请日：2012-07-03
IPC分类号： G06F21/31
CPC分类号： G06F21/31 , G06F21/32 , G06F21/6245 , G06F21/84 , H04L63/0861 , H04L2463/082
摘要： A method and computing device for continuous multi-factor authentication are included in which a plurality of valid authentication credentials may be detected. Also, an authorized user may be detected within a viewing area. Additionally, an unauthorized object may be detected in the viewing area. Furthermore, a display device may be prevented from displaying content.
摘要翻译： 包括用于连续多因素认证的方法和计算装置，其中可以检测多个有效的认证证书。 此外，可以在观看区域内检测到授权用户。 此外，可以在观看区域中检测到未经授权的对象。 此外，可以防止显示装置显示内容。
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公开(公告)号：US08510654B2
公开(公告)日：2013-08-13
申请号：US12626757
申请日：2009-11-27
申请人： Scott Janus
发明人： Scott Janus
CPC分类号： H04N5/913 , G11B27/34 , H04N5/85 , H04N7/17336 , H04N21/4325 , H04N21/458 , H04N2005/91378
摘要： An apparatus, system, method, and article for shuffling video information are described. The apparatus may include a media processing node to receive video information. The media processing node may include a shuffling module to shuffle the video information according to a shuffle order and a trusted entity programmed based on the shuffle order to provide access to the video information. The video information may be provided in an unshuffled manner when accessed through the trusted entity. Other embodiments are described and claimed.
摘要翻译： 描述了用于混洗视频信息的装置，系统，方法和文章。 该装置可以包括用于接收视频信息的媒体处理节点。 媒体处理节点可以包括混洗模块，用于根据洗牌顺序洗牌视频信息和基于洗牌顺序编程的可信实体以提供对视频信息的访问。 当通过可信实体访问时，视频信息可以以未混洗的方式提供。 描述和要求保护其他实施例。
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公开(公告)号：US07353372B2
公开(公告)日：2008-04-01
申请号：US10329026
申请日：2002-12-24
申请人： Scott Janus , Adam H. Wilen , David A. Wyatt
发明人： Scott Janus , Adam H. Wilen , David A. Wyatt
CPC分类号： G06F9/4411
摘要： Embodiments of the present invention provide detection, enumeration, and software configuration of optional choice of add-in cards types through a multiplexed bus interface. The PROM allows identification of the add-in device and software configuration to adapt to support it. In particular, plug and play detection of digital display codec devices and display and integration of software and firmware support for devices inside the add-in card are provided for.
摘要翻译： 本发明的实施例提供了通过多路复用总线接口选择附加卡类型的可选择的检测，枚举和软件配置。 PROM允许识别加载项设备和软件配置以适应支持。 特别是提供了数字显示编解码器设备的即插即用检测，以及对附加卡内的设备的软件和固件支持的显示和集成。
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