公开(公告)号：US20250147879A1

公开(公告)日：2025-05-08

申请号：US18910571

申请日：2024-10-09

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Myeongjong JU ,  Kyungwoo NOH ,  Jisoo KIM ,  Younsung CHU

IPC: G06F12/02

Abstract: A storage device includes a memory and a memory controller configured to control the memory. The memory controller includes a one-time programmable (OTP) module, the OTP module including a hardware area and being configured to store, in the hardware area, a logic bit indicating an initial operation restriction state of an instruction code. The memory controller is configured to output an operation restriction state of a vendor unique command (VUC) based on a state table corresponding to the instruction code.

公开(公告)号：US20230195333A1

公开(公告)日：2023-06-22

申请号：US17946650

申请日：2022-09-16

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Younghyun JI ,  Jisoo KIM ,  Kyungwoo NOH ,  Kyungjin LEE

IPC: G06F3/06

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

Abstract: A storage device includes a memory device including user memory blocks providing a user data region; and a controller configured to: map logical addresses used in a host to a portion of the user data region, and use a remaining portion of the user data region as an over-provisioning region, wherein the controller is further configured to control the memory device to: erase the user memory blocks based on a sanitize command from the host, provide, to the host, block address information of the user memory blocks based on a block address request from the host, access the user memory blocks based on block state check requests from the host, and provide, to the host, state information indicating whether the user memory blocks are erased according to access results.

公开(公告)号：US20250028834A1

公开(公告)日：2025-01-23

申请号：US18632803

申请日：2024-04-11

Applicant: Samsung Electronics Co., Ltd.

Inventor： Yongjae LEE ,  Kyungwoo NOH

IPC: G06F21/57 ,  H04L9/08 ,  H04L9/30 ,  H04L9/32

Abstract: A storage device includes: a non-volatile memory for storing a firmware set including a firmware image encrypted using a symmetric key and an encrypted symmetric key generated by encrypting the symmetric key using a public key; and a storage controller for controlling the non-volatile memory, wherein the storage controller includes: a physically unclonable function (PUF) chip having a unique security key; and a one-time programmable (OTP) memory for storing an encrypted secret key generated by encrypting a secret key paired with the public key using the PUF chip, wherein a firmware image is obtained by loading the firmware set, providing the encrypted secret key to the PUF chip, receiving the secret key from the PUF chip, generating the symmetric key by decrypting the encrypted symmetric key using the secret key, and decrypting the encrypted firmware image using the symmetric key.