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1.
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.
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2.
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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