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    METHODS AND ARCHITECTURES FOR SECURE RANGING
    1.
    发明申请
    METHODS AND ARCHITECTURES FOR SECURE RANGING 审中-公开

    公开(公告)号：WO2019067056A1

    公开(公告)日：2019-04-04

    申请号：PCT/US2018/040701

    申请日：2018-07-03

    Applicant: APPLE INC.

    Inventor： SIERRA, Yannick ,  CHEN, Zhimin ,  ICART, Thomas

    IPC: H04W12/02 ,  H04W12/04 ,  H04W64/00 ,  H04L9/00 ,  H04L9/08

    Abstract: Embodiments described herein enable the generation of cryptographic material for ranging operations in a manner that reduces and obfuscates potential correlations between leaked and secret information. One embodiment provides for an apparatus including a ranging module having one or more ranging sensors. The ranging module is coupled to a secure processing system through a hardware interface to receive at least one encrypted ranging session key, the ranging module to decrypt the at least one encrypted ranging session key to generate a ranging session key, generate a sparse ranging input, derive a message session key based on the ranging session key, and derive a derived ranging key via a key derivation cascade applied to the message session key and the sparse ranging input, the derived ranging key to encrypt data transmitted during a ranging session.

    SECURE MODE SWITCHING IN NEURAL PROCESSOR CIRCUIT
    2.
    发明申请
    SECURE MODE SWITCHING IN NEURAL PROCESSOR CIRCUIT 审中-公开

    公开(公告)号：WO2021091626A1

    公开(公告)日：2021-05-14

    申请号：PCT/US2020/052054

    申请日：2020-09-22

    Applicant: APPLE INC.

    Inventor： FISHEL, Liran ,  CHEN, Zhimin

    IPC: G06N3/04 ,  G06N3/063 ,  G06N3/08

    Abstract: Embodiments relate to switching a neural processor circuit between non-secure and secure modes. A security controller of the neural processor circuit indicates that a transition from the non-secure mode to the secure mode is to occur. The security controller waits for a neural task manager of the neural processor circuit to clear out any existing non-secure tasks in queues. After the existing non-secure mode tasks are cleared, the security controller switches the neural processor circuit to the secure mode. While in the secure mode, secure tasks are added to one or more queues and executed, and data for processing in the neural processor circuit is received from a secure source. The neural processor circuit may to transition back to the non-secure mode when all secure mode tasks are completed.

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