公开(公告)号：US12041188B2

公开(公告)日：2024-07-16

申请号：US17394613

申请日：2021-08-05

Applicant: Samsung Electronics Co., Ltd.

Inventor： Hoyoung Shin ,  Sung Ung Kwak ,  Ji-Sung Kim ,  Shin-Wuk Kang

IPC: H04L29/00 ,  G11C7/06 ,  G11C8/10 ,  H03M1/66 ,  H04L9/08 ,  H04L9/32

CPC classification number: H04L9/3278 ,  G11C7/06 ,  G11C8/10 ,  H03M1/662 ,  H04L9/0866

Abstract: A security device includes a physical unclonable function (PUF) cell array including PUF cells connected with word lines and bit lines; first decoder circuitry connecting a first bit line connected to a target PUF cell with a first data line and a second bit line connected with a reference PUF cell to a second data line; a digital-to-analog converter (DAC) control circuit outputting first and second digital codes; a first DAC between a power supply voltage and the first data line, the first DAC generating a first analog output in response to the first digital code; a second DAC between the power supply voltage and the second data line, the second DAC generating a second analog output in response to the second digital code; and a sense amplifier comparing the first analog output and the second analog output and outputting a comparison result.

公开(公告)号：US11349652B2

公开(公告)日：2022-05-31

申请号：US16819694

申请日：2020-03-16

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Sung Ung Kwak

IPC: H04L9/08

Abstract: A security device includes a physical unclonable function (PUF) cell array including a plurality of PUF cells, and a controller configured to control the PUF cell array to generate a security key. The controller includes a receiver configured to receive raw data from the plurality of PUF cells, a mapping table generator configured to extract stable data from the received raw data by discarding unstable data of the received raw data, and generate a mapping table based on stable PUF cells corresponding to the extracted stable data, among the plurality of PUF cells, a PUF cell controller configured to read sensing data from the stable PUF cells, based on the generated mapping table, and a bit determiner configured to generate the security key, based on the read sensing data.

公开(公告)号：US11849054B2

公开(公告)日：2023-12-19

申请号：US17199944

申请日：2021-03-12

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Sung Ung Kwak

IPC: H04L9/32 ,  G06F21/60 ,  G06F21/72 ,  G06F21/75

CPC classification number: H04L9/3278 ,  G06F21/602 ,  G06F21/72 ,  G06F21/75

Abstract: An integrated circuit for a physically unclonable function (PUF) includes a controller configured to generate a control signal with reference to an address table, the address table representing a first mapping relationship between a first PUF cell group and a second PUF cell group having a first predetermined mismatch distance in relation to a PUF cell characteristic, and representing a second mapping relationship between a third PUF cell group and a fourth PUF cell group having a second predetermined mismatch distance in relation to the PUF cell characteristic; and a PUF block configured to provide PUF cell data groups in accordance with the first and second mapping relationships to the controller, in response to the control signal. The controller may be configured to generate an authentication key by respectively comparing the PUF cell data groups with reference data groups.

公开(公告)号：US11418332B2

公开(公告)日：2022-08-16

申请号：US16813229

申请日：2020-03-09

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Sung Ung Kwak ,  Sungkyoung Kim

IPC: H04L29/06 ,  H04L9/08 ,  H04L9/32

Abstract: An operation method of a security device which includes a plurality of physical unclonable function (PUF) cells includes selecting a target PUF cell of the plurality of PUF cells, selecting at least two reference PUF cells of the plurality of PUF cells based on a sorted list, reading a plurality of sensing data from the target PUF cell and the at least two reference PUF cells, and determining a target bit corresponding to the target PUF cell based on the plurality of sensing data to output the determined target bit.

公开(公告)号：US12045329B2

公开(公告)日：2024-07-23

申请号：US17229256

申请日：2021-04-13

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Gi Jin Kang ,  Sung Ung Kwak ,  Ji-Soo Chang

IPC: G06F21/32 ,  G06F21/60

CPC classification number: G06F21/32 ,  G06F21/602

Abstract: A smart card is provided. The smart card includes a peripheral circuit configured to control a fingerprint sensing array and generate a raw image, an authentication information processing module configured to process the raw image into fingerprint information for verification, a security module configured to determine whether the fingerprint information for verification matches registered fingerprint information to determine usage approval or disapproval for a payment request, and an active shield overlapping the security module. The peripheral circuit, the authentication information processing module, and the security module are integrated into one chip.