公开(公告)号：US11940494B2

公开(公告)日：2024-03-26

申请号：US17859870

申请日：2022-07-07

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Woohyun Son ,  Kiseok Bae

IPC: G06F30/333 ,  G01R31/317 ,  G01R31/3185 ,  G01R31/3193

CPC classification number: G01R31/318597 ,  G01R31/31719 ,  G01R31/31727 ,  G01R31/31935

Abstract: A system on chip includes a one-time programmable (OTP) memory configured to store secure data, an OTP controller including at least one shadow register configured to read the secure data from the OTP memory and to store the secure data, a power management unit configured to receive an operation mode signal from an external device and to output test mode information indicating whether an operation mode is a test mode according to the operation mode signal and a test valid signal corresponding to the secure data, and a test circuit configured to receive the test mode information from the power management unit, to receive test data from the external device, and to output a scan mode signal and a test mode signal according to the test data and a test deactivation signal, wherein the test deactivation signal corresponds to development state data indicating a chip development state in the secure data.

公开(公告)号：US11070380B2

公开(公告)日：2021-07-20

申请号：US15212343

申请日：2016-07-18

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Kitak Kim ,  Ji-Su Kang ,  Kiseok Bae ,  Jonghoon Shin ,  Kyoungmoon Ahn ,  Jinsu Hyun

IPC: H04L29/06 ,  H04L9/32 ,  H04L9/30 ,  H04L9/06 ,  H04L9/14 ,  H04W12/069

Abstract: An authentication apparatus, included in a device supporting a network communication, includes a certificate handler that receives a certificate of an opponent and parses or verifies the certificate of the opponent. Cryptographic primitives receive an authentication request of the opponent, generate a random number in response to the authentication request, generate a challenge corresponding to the random number, and verify a response of the opponent corresponding to the challenge. A shared memory stores the parsed certificate, the random number, the challenge, and the response. An authentication controller controls the certificate handler, the cryptographic primitives, and the shared memory through a register setting, according to an authentication protocol.

公开(公告)号：US11698659B2

公开(公告)日：2023-07-11

申请号：US17559255

申请日：2021-12-22

Applicant: Samsung Electronics Co., Ltd.

Inventor： Jieun Ahn ,  Sungcheol Park ,  Kiseok Bae

IPC: H03K3/00 ,  G06F1/12 ,  H03K3/037 ,  H03K19/20 ,  G06F1/06 ,  H03K5/01 ,  H03K5/00

CPC classification number: G06F1/12 ,  G06F1/06 ,  H03K3/037 ,  H03K5/01 ,  H03K19/20 ,  H03K2005/00013

Abstract: Provided is an integrated circuit. The integrated circuit includes a plurality of clock generators configured to respectively generate a plurality of clock signals, a plurality of logic circuits configured to operate in synchronization with the plurality of clock signals, and controller circuitry configured to identify meta-stability information based on frequencies of the plurality of clock signals, and configured to control at least one clock generator so that at least one of the plurality of clock signals is randomly delayed in response to the meta-stability information.

公开(公告)号：US20220269306A1

公开(公告)日：2022-08-25

申请号：US17559255

申请日：2021-12-22

Applicant: Samsung Electronics Co., Ltd.

Inventor： Jieun Ahn ,  Sungcheol Park ,  Kiseok Bae

IPC: G06F1/12 ,  H03K3/037 ,  H03K5/01 ,  H03K19/20 ,  G06F1/06

Abstract: Provided is an integrated circuit. The integrated circuit includes a plurality of clock generators configured to respectively generate a plurality of clock signals, a plurality of logic circuits configured to operate in synchronization with the plurality of clock signals, and controller circuitry configured to identify meta-stability information based on frequencies of the plurality of clock signals, and configured to control at least one clock generator so that at least one of the plurality of clock signals is randomly delayed in response to the meta-stability information.

公开(公告)号：US11270003B2

公开(公告)日：2022-03-08

申请号：US16858963

申请日：2020-04-27

Applicant: Samsung Electronics Co., Ltd.

Inventor： Kitak Kim ,  Kiseok Bae ,  Jinsu Hyun

IPC: G06F21/57 ,  G06F8/65 ,  G06F9/445 ,  H04L9/08

Abstract: A method for patching a patchable function programmed in a read only memory (ROM) of a semiconductor device by using firmware loaded onto a first memory includes receiving an encrypted and digitally signed firmware image; generating a verification result by verifying the firmware image by using a public key; decrypting the firmware image by using a secret key depending on the verification result; loading firmware decrypted from the firmware image onto the first memory; and running a replacement function corresponding to an identifier of the patchable function included in the firmware, when the patchable function is called.