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    Storage devices, methods of operating storage devices, and methods of operating host devices
    1.
    发明授权
    Storage devices, methods of operating storage devices, and methods of operating host devices 有权

    公开(公告)号：US12014059B2

    公开(公告)日：2024-06-18

    申请号：US17815245

    申请日：2022-07-27

    Applicant: Samsung Electronics Co., Ltd.

    Inventor： Kyung-Jin Lee ,  Ji Soo Kim ,  Kyung-Woo Noh ,  Young Hyun Ji

    IPC: G06F3/06

    CPC classification number: G06F3/0623 ,  G06F3/0652 ,  G06F3/0679

    Abstract: A storage device, a method of operating the storage device, and a method of operating a host device are provided. The storage device includes a nonvolatile memory (NVM) and a storage controller controlling the nonvolatile memory. The storage controller is configured to receive a command from a host device giving instructions to sanitize data with the use of a cryptographic erase. The storage controller is also configured to, in response to a request from the host device, transmit to the host device a first verification value indicative of whether a first media encryption key (MEK) stored in the NVM has been deleted and a second verification value indicative of whether a second MEK, which is different from the first MEK, has been generated and stored in the NVM.

    STORAGE DEVICES, METHODS OF OPERATING STORAGE DEVICES, AND METHODS OF OPERATING HOST DEVICES
    2.
    发明公开
    STORAGE DEVICES, METHODS OF OPERATING STORAGE DEVICES, AND METHODS OF OPERATING HOST DEVICES 审中-公开

    公开(公告)号：US20230195332A1

    公开(公告)日：2023-06-22

    申请号：US17815245

    申请日：2022-07-27

    Applicant: Samsung Electronics Co., Ltd.

    Inventor： Kyung-Jin Lee ,  Ji Soo Kim ,  Kyung-Woo Noh ,  Young Hyun Ji

    IPC: G06F3/06

    CPC classification number: G06F3/0623 ,  G06F3/0652 ,  G06F3/0679

    Abstract: A storage device, a method of operating the storage device, and a method of operating a host device are provided. The storage device includes a nonvolatile memory (NVM) and a storage controller controlling the nonvolatile memory. The storage controller is configured to receive a command from a host device giving instructions to sanitize data with the use of a cryptographic erase. The storage controller is also configured to, in response to a request from the host device, transmit to the host device a first verification value indicative of whether a first media encryption key (MEK) stored in the NVM has been deleted and a second verification value indicative of whether a second MEK, which is different from the first MEK, has been generated and stored in the NVM.

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