公开(公告)号：US20220019356A1

公开(公告)日：2022-01-20

申请号：US17358367

申请日：2021-06-25

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Hyunsook HONG ,  Jisoo KIM ,  Yongsuk LEE ,  Younsung CHU ,  Hyungsup KIM

IPC: G06F3/06

Abstract: A method of writing data to a protected region in response to a request from a host includes receiving a first write request including a first host message authentication code and a first random number from the host, verifying the first write request based on a write count, the first random number, and the first host message authentication code, updating the write count based on a result of verifying the first write request, generating a first device message authentication code based on the updated write count and the first random number, and providing the host with a first response including the first device message authentication code and a result of the verifying of the first write request.

公开(公告)号：US20200004693A1

公开(公告)日：2020-01-02

申请号：US16567355

申请日：2019-09-11

Applicant: Samsung Electronics Co., Ltd.

Inventor： Jaegyu LEE ,  Jisoo KIM ,  Young-Jin PARK ,  Bo-Ram SHIN

IPC: G06F12/14

Abstract: In one embodiment, the method includes receiving, at a storage device, a request. The request includes a request message authentication code and write protect information. The write protect information includes at least one of start address information and length information. The start address information indicates a logical block address at which a memory area in a non-volatile memory of the storage device starts, and the length information indicates a length of the memory area. The method also includes generating, at the storage device, a message authentication code based on (1) at least one of the start address information and the length information, and (2) a key stored at the storage device; authenticating, at the storage device, the request based on the generated message authentication code and the request message authentication code; and processing, at the storage device, the request based on a result of the authenticating.

公开(公告)号：US20160034683A1

公开(公告)日：2016-02-04

申请号：US14726941

申请日：2015-06-01

Applicant: Samsung Electronics Co., Ltd.

Inventor： Jaegyu LEE ,  Jisoo KIM ,  Bo-Ram SHIN

IPC: G06F21/44 ,  G06F9/44

CPC classification number: G06F9/4406 ,  G06F9/4408 ,  G06F21/34 ,  G06F21/6218

Abstract: A memory card includes a nonvolatile memory and a device controller. The nonvolatile memory stores data. The device controller divides the nonvolatile memory into a plurality of logical units and stores an authentication program at a partial area the plurality of logical units. When connected with a host, the device controller enables the authentication program to be executable on the host.

Abstract translation: 存储卡包括非易失性存储器和设备控制器。 非易失性存储器存储数据。 设备控制器将非易失性存储器划分为多个逻辑单元，并将认证程序存储在多个逻辑单元的部分区域。 当与主机连接时，设备控制器使认证程序能够在主机上执行。