- Patent Title: Graphics processing unit accelerated trusted execution environment
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Application No.: US16787610Application Date: 2020-02-11
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Publication No.: US11295008B2Publication Date: 2022-04-05
- Inventor: Chung Hwan Kim , Junghwan Rhee , Kangkook Jee , Zhichun Li , Adil Ahmad , Haifeng Chen
- Applicant: NEC Laboratories America, Inc.
- Applicant Address: US NJ Princeton
- Assignee: NEC Laboratories America, Inc.
- Current Assignee: NEC Laboratories America, Inc.
- Current Assignee Address: US NJ Princeton
- Agent Joseph Kolodka
- Main IPC: G06F21/53
- IPC: G06F21/53 ; G06F21/60 ; G06F21/12 ; G06F9/455 ; G06F21/54 ; G06F21/44

Abstract:
Systems and methods for implementing a system architecture to support a trusted execution environment (TEE) with computational acceleration are provided. The method includes establishing a first trusted channel between a user application stored on an enclave and a graphics processing unit (GPU) driver loaded on a hypervisor. Establishing the first trusted channel includes leveraging page permissions in an extended page table (EPT) to isolate the first trusted channel between the enclave and the GPU driver in a physical memory of an operating system (OS). The method further includes establishing a second trusted channel between the GPU driver and a GPU device. The method also includes launching a unified TEE that includes the enclave and the hypervisor with execution of application code of the user application.
Public/Granted literature
- US20200257794A1 GRAPHICS PROCESSING UNIT ACCELERATED TRUSTED EXECUTION ENVIRONMENT Public/Granted day:2020-08-13
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