公开(公告)号：US20180323968A1

公开(公告)日：2018-11-08

申请号：US16023626

申请日：2018-06-29

Applicant: Samsung Electronics Co., Ltd.

Inventor： Yong Ki Lee ,  Yongsoo Kim ,  Bohdan Karpinskyy ,  Yunhyeok Choi

IPC: H04L9/08

CPC classification number: H04L9/088 ,  H04L9/0866 ,  H04L2209/046 ,  H04L2209/34

Abstract: A key enrollment method of a physically unclonable function (PUF) circuit including a plurality of PUF cells includes receiving a first level key from PUF cells, performing bit encoding on the first level key using a bit coding table based on Hamming weights of a plurality of bits in the first level key to generate a second level key, storing first helper data associated with the second level key in a non-volatile memory, performing block encoding on the second level key using an error correction code to generate a third level key, and storing second helper data associated with the third level key in the non-volatile memory.

公开(公告)号：US10101968B2

公开(公告)日：2018-10-16

申请号：US15634276

申请日：2017-06-27

Applicant: Samsung Electronics Co., Ltd.

Inventor： Sang-Wook Park ,  Bohdan Karpinskyy ,  Yong Ki Lee ,  Yunhyeok Choi ,  Mijung Noh

IPC: G06F7/58

Abstract: A random number generator may include a first meta-stable inverter having an input terminal and an output terminal connected to each other and configured to generate a meta-stable voltage, an amplifier configured to amplify the meta-stable voltage, control circuitry configured to adjust a threshold voltage of the meta-stable voltage, and a sampler configured to generate a random number based on sampling the meta-stable voltage. The random number generator may be configured to be operated according to different modes of operation of a plurality of modes of operation. The amplifier may be a second meta-stable inverter configured to amplify the meta-stable voltage or include an input terminal and an output terminal that are connected to each other based on the random number generator being operated according to a first mode of operation or a second mode of operation, respectively, of the plurality of modes of operation.

公开(公告)号：US10027480B2

公开(公告)日：2018-07-17

申请号：US14940749

申请日：2015-11-13

Applicant: Samsung Electronics Co., Ltd.

Inventor： Yong Ki Lee ,  Yongsoo Kim ,  Bohdan Karpinskyy ,  Yunhyeok Choi

IPC: H04L9/00 ,  H04L9/08 ,  H04L17/02

Abstract: A key enrollment method of a physically unclonable function (PUF) circuit including a plurality of PUF cells includes receiving a first level key from PUF cells, performing bit encoding on the first level key using a bit coding table based on Hamming weights of a plurality of bits in the first level key to generate a second level key, storing first helper data associated with the second level key in a non-volatile memory, performing block encoding on the second level key using an error correction code to generate a third level key, and storing second helper data associated with the third level key in the non-volatile memory.