公开(公告)号：US20240267235A1

公开(公告)日：2024-08-08

申请号：US18483951

申请日：2023-10-10

Applicant: Samsung Electronics Co., Ltd.

Inventor： Sewon KIM ,  Kyung-Woo NOH ,  Yeongae YU

IPC: H04L9/32 ,  H04L9/08

CPC classification number: H04L9/3268 ,  H04L9/0825 ,  H04L9/3236 ,  H04L9/3247

Abstract: A method for verifying firmware includes verifying a firmware certificate of the firmware using a first public key, verifying validity of a second public key included in the firmware certificate in response to successful verification of the firmware certificate, verifying the firmware using the second public key in response to successful verification of validity of the second public key, and in response to successful verification of validity of the firmware, installing the firmware in memory of an electronic device to operate hardware of the electronic device according to the firmware.

公开(公告)号：US20250148093A1

公开(公告)日：2025-05-08

申请号：US18678216

申请日：2024-05-30

Applicant: Samsung Electronics Co., Ltd.

Inventor： Subin SEO ,  Jisoo KIM ,  Kyung-Woo NOH ,  Younsung CHU

IPC: G06F21/60

Abstract: Disclosed is a memory system which includes a non-volatile memory device, and a memory controller configured to control the non-volatile memory device. The memory controller includes a key index table including an extended key index associated with a logical address from a host device and an encryption/decryption key table including a replicated key index associated with the extended key index, and an encryption/decryption key associated with encryption or decryption of target data associated with the logical address. The memory controller is configured to change the replicated key index based on a key change request for the encryption/decryption key. Based on the encryption or the decryption being performed with respect to the target data, the memory controller is configured to compare the extended key index and the replicated key index to detect whether the encryption/decryption key associated with the encryption or the decryption is changed.

公开(公告)号：US20250061202A1

公开(公告)日：2025-02-20

申请号：US18600100

申请日：2024-03-08

Applicant: SAMSUNG ELECTRONICS CO.,LTD.

Inventor： Sewon KIM ,  Kyung-Woo NOH ,  Subin seo

IPC: G06F21/57 ,  H04L9/06 ,  H04L9/08

Abstract: A method for updating firmware of an electronic device includes verifying a first firmware certificate using a first public key, based on at least one of the electronic device being supplied power or the electronic device being reset, verifying a first firmware code included in the first firmware image based on a first hash value included in the first firmware certificate, and operating the electronic device using the first firmware code, based on the verifying of the first firmware certificate and the verifying of the first firmware code being successful. The first firmware certificate being included in a first firmware image stored in a memory of the electronic device.