公开(公告)号：US10747687B2

公开(公告)日：2020-08-18

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: G06F12/00 ,  G06F12/14 ,  G06F11/10 ,  G06F11/14 ,  G06F12/02

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：US09678760B2

公开(公告)日：2017-06-13

申请号：US14726941

申请日：2015-06-01

Applicant: Samsung Electronics Co., Ltd.

Inventor： Jaegyu Lee ,  Jisoo Kim ,  Bo-Ram Shin

IPC: H04L29/06 ,  G06F9/44 ,  G06F21/34 ,  G06F21/62

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.