公开(公告)号：EP2567378A4

公开(公告)日：2017-05-17

申请号：EP11777785

申请日：2011-04-08

Applicant: INTEL CORP

Inventor： NEMIROFF DANIEL ,  VEMBU BALAJI ,  GUTIERREZ RAUL ,  KAREENAHALLI SURYAPRASAD

IPC: G11B20/12 ,  G11B27/28

CPC classification number: G11B27/3027 ,  G11B27/28

公开(公告)号：EP2661716A4

公开(公告)日：2016-05-11

申请号：EP11855191

申请日：2011-12-28

Applicant: INTEL CORP

Inventor： PENDAKUR RAMESH ,  GINTZ WALTER C ,  NEMIROFF DANIEL ,  HAZRA MOUSUMI M

IPC: G06F21/12 ,  H04L9/32 ,  H04N21/418 ,  H04N21/4363 ,  H04N21/4367 ,  H04N21/4408 ,  H04N21/6334

CPC classification number: H04N21/4367 ,  G06F21/123 ,  G06F21/72 ,  H04L9/3234 ,  H04N21/4181 ,  H04N21/43635 ,  H04N21/4408 ,  H04N21/63345

Abstract: A system architecture provides a hardware-based root of trust solution for supporting distribution and playback of premium digital content. In an embodiment, hardware root of trust for digital content and services is a solution where the basis of trust for security purposes is rooted in hardware and firmware mechanisms in a client computing system, rather than in software. From this root of trust, the client computing system constructs an entire media processing pipeline that is protected for content authorization and playback. In embodiments of the present invention, the security of the client computing system for content processing is not dependent on the operating system (OS), basic input/output system (BIOS), media player application, or other host software.

公开(公告)号：EP2580704A4

公开(公告)日：2013-11-27

申请号：EP11792835

申请日：2011-05-05

Applicant: INTEL CORP

Inventor： VEMBU BALAJI ,  KAREENAHALLI SURYAPRASAD ,  NEMIROFF DANIEL ,  BOGIN ZOHAR ,  GUTIERREZ RAUL

IPC: H04N7/167 ,  G06F21/70 ,  H04N21/426 ,  H04N21/4405 ,  H04N21/4408

CPC classification number: H04N21/4405 ,  G06F21/10 ,  H04N21/4181 ,  H04N21/42623 ,  H04N21/4408

Abstract: An apparatus for secured playback is presented. In one embodiment, the apparatus includes a controller that includes a key derivation module to manage authentication and key derivation. In one embodiment, the apparatus provides a video decryption key to a graphics engine if video data portions in a data stream are retrievable without having to decrypt the data stream. In one embodiment, the apparatus also includes a decryption module to decrypt a part of data in conjunction with an encryption key to generate video information and video data. The controller then writes an encrypted version of the video data to a video buffer of a graphics engine.

Abstract translation: 提出了一种用于安全播放的设备。 在一个实施例中，该装置包括控制器，其包括用于管理认证和密钥推导的密钥导出模块。 在一个实施例中，如果可以检索数据流中的视频数据部分而不必对数据流进行解密，则该装置向图形引擎提供视频解密密钥。 在一个实施例中，该装置还包括解密模块，用于结合加密密钥对数据的一部分进行解密以生成视频信息和视频数据。 然后，控制器将视频数据的加密版本写入图形引擎的视频缓冲器。