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1. 发明申请

WO2017105768A1 TECHNOLOGIES FOR PROTECTING AUDIO DATA WITH TRUSTED I/O 审中-公开
标题翻译：用可靠的I / O保护音频数据的技术
公开(公告)号：WO2017105768A1
公开(公告)日：2017-06-22
申请号：PCT/US2016/062781
申请日：2016-11-18
申请人： INTEL CORPORATION
发明人： LAL, Reshma , PAPPACHAN, Pradeep M. , WONG, Kar , MCGOWAN, Steven B. , ASLAM, Adeel A , KRISHNAKUMAR, Sudha
IPC分类号： G06F21/60 , G06F21/50
CPC分类号： G06F3/165 , G06F3/162 , G06F15/167 , H04L9/32 , H04L63/126 , H04L65/1069 , H04L65/4069 , H04L65/605
摘要： Technologies for cryptographic protection of I/O audio data include a computing device with a cryptographic engine and an audio controller. A trusted software component may request an untrusted audio driver to establish an audio session with the audio controller that is associated with an audio codec. The trusted software component may verify that a stream identifier associated with the audio session received from the audio driver matches a stream identifier received from the codec. The trusted software may program the cryptographic engine with a DMA channel identifier associated with the codec, and the audio controller may assert the channel identifier in each DMA transaction associated with the audio session. The cryptographic engine cryptographically protects audio data associated with the audio session. The audio controller may lock the controller topology after establishing the audio session, to prevent re-routing of audio during a trusted audio session. Other embodiments are described and claimed.
摘要翻译：用于I / O音频数据的密码保护的技术包括具有密码引擎和音频控制器的计算设备。可信软件组件可以请求不可信音频驱动程序建立与音频编解码器关联的音频控制器的音频会话。可信软件组件可以验证与从音频驱动器接收到的音频会话相关联的流标识符与从编解码器接收到的流标识符相匹配。可信软件可以使用与编解码器相关联的DMA通道标识符对密码引擎进行编程，并且音频控制器可以在与音频会话相关联的每个DMA事务中断言通道标识符。密码引擎以密码方式保护与音频会话相关联的音频数据。音频控制器可以在建立音频会话之后锁定控制器拓扑，以防止在可信音频会话期间重新路由音频。描述并要求保护其他实施例。

2. 发明公开

EP4145267A1 REDUCING LATENCY OF HARDWARE TRUSTED EXECUTION ENVIRONMENTS 审中-实审
公开(公告)号：EP4145267A1
公开(公告)日：2023-03-08
申请号：EP22202941.5
申请日：2021-09-16
申请人： Intel Corporation
发明人： SAHITA, Ravi , MCKEEN, Francis , VIJ, Mona , SCARLATA, Vincent , ZMUDZINSKI, Krystof , ILLIKKAL, Rameshkumar , KRISHNAKUMAR, Sudha , STEINER, Michael , KNAUTH, Thomas , KUVAISKII, Dmitrii , VAHLDIEK-OBERWAGNER, Anjo Lucas
IPC分类号： G06F3/06 , G06F21/53 , H04L9/08 , G06F9/455
摘要： Example methods and systems are directed to reducing latency in providing trusted execution environments (TEEs). Initializing a TEE includes multiple steps before the TEE starts executing. Besides workload-specific initialization, workload-independent initialization is performed, such as adding memory to the TEE. In function-as-a-service (FaaS) environments, a large portion of the TEE is workload-independent, and thus can be performed prior to receiving the workload. Certain steps performed during TEE initialization are identical for certain classes of workloads. Thus, the common parts of the TEE initialization sequence may be performed before the TEE is requested. When a TEE is requested for a workload in the class and the parts to specialize the TEE for its particular purpose are known, the final steps to initialize the TEE are performed.

3. 发明公开

EP4020156A1 REDUCING LATENCY OF HARDWARE TRUSTED EXECUTION ENVIRONMENTS 有权
公开(公告)号：EP4020156A1
公开(公告)日：2022-06-29
申请号：EP21197114.8
申请日：2021-09-16
申请人： INTEL Corporation
发明人： SAHITA, Ravi , MCKEEN, Francis , VIJ, Mona , SCARLATA, Vincent , ZMUDZINSKI, Krystof , ILLIKKAL, Rameshkumar , KRISHNAKUMAR, Sudha , STEINER, Michael , KNAUTH, Thomas , KUVAISKII, Dmitrii , VAHLDIEK-OBERWAGNER, Anjo Lucas
IPC分类号： G06F3/06 , G06F21/53 , H04L9/08 , G06F9/455
摘要： Example methods and systems are directed to reducing latency in providing trusted execution environments (TEEs). Initializing a TEE includes multiple steps before the TEE starts executing. Besides workload-specific initialization, workload-independent initialization is performed, such as adding memory to the TEE. In function-as-a-service (FaaS) environments, a large portion of the TEE is workload-independent, and thus can be performed prior to receiving the workload. Certain steps performed during TEE initialization are identical for certain classes of workloads. Thus, the common parts of the TEE initialization sequence may be performed before the TEE is requested. When a TEE is requested for a workload in the class and the parts to specialize the TEE for its particular purpose are known, the final steps to initialize the TEE are performed.

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