APPARATUSES AND METHODS FOR SIGNAL ENCRYPTION IN HIGH BANDWIDTH MEMORY

    公开(公告)号:US20230351063A1

    公开(公告)日:2023-11-02

    申请号:US18333406

    申请日:2023-06-12

    Abstract: Embodiments of the disclosure are drawn to apparatuses, systems, and methods for signal encryption in high bandwidth memory. A high bandwidth memory (HBM) may include a mix of secure circuits and non-secure circuits, which are coupled to secure and non-secure registers respectively. Information may be communicated between the secure and non-secure registers along an interface. The information associated with the secure register may be encrypted. When information is written to the secure register, an encryption circuit in the HBM may first decrypt the information before it is written to the secure register. When information is read from the secure register, it may first be encrypted by the encryption circuit before it is provided along the interface.

    SECURE ELEMENT ENFORCING A SECURITY POLICY FOR DEVICE PERIPHERALS

    公开(公告)号:US20230351028A1

    公开(公告)日:2023-11-02

    申请号:US17733562

    申请日:2022-04-29

    CPC classification number: G06F21/60 G06F21/85 H04L63/20

    Abstract: Techniques for implementing and enforcing a security policy in a secure element are disclosed. The secure element enforces the security policy to grant and/or deny access, such as from an application processor, to configuration of the device peripheral components and access to data of the device peripheral components across one or more bus architectures, such as an I3C bus. Implementing an access control policy in a secure element allows execution of code within the isolated secure element hardware processor, preventing software attacks that may emanate from code running in the application processor. This design also benefits from hardware protections against physical attacks.

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