公开(公告)号：US20210250189A1

公开(公告)日：2021-08-12

申请号：US17014418

申请日：2020-09-08

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： KYOUNGMOON AHN ,  YONGSOO KIM ,  YONGKI LEE ,  YUNHYEOK CHOI ,  BOHDAN KARPINSKYY

IPC: H04L9/32 ,  G06F21/64 ,  H04L9/08

Abstract: A security device generates a key based on a physically unclonable function (PUF). The security device includes a physically unclonable function (PUF) block, an integrity detector, and a post processor. The PUF block outputs a plurality of first random signals and a plurality of corresponding first inverted random signals each having a logic level opposite to that of each of the plurality of corresponding first random signals. The integrity detector determines data integrity of the plurality of first random signals by using the plurality of first random signals and the plurality of corresponding first inverted random signals. The post processor generates a first row key that includes validity signals satisfying the data integrity.

公开(公告)号：US20210234709A1

公开(公告)日：2021-07-29

申请号：US17015554

申请日：2020-09-09

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： YONGSOO KIM ,  Juyeon Lee ,  Mijung Noh ,  Yongki Lee ,  Yunhyeok Choi

IPC: H04L9/32 ,  H04L9/08 ,  G06F21/73 ,  G06F21/44

Abstract: The present disclosure relates to an integrated circuit and a method of using the integrated circuit used to perform authentication using a challenge-response method. The challenge-response method includes an internal challenge generator, a physically unclonable function (PUF) block, and a response generator. The internal challenge generator is configured to receive a challenge, generate a plurality of internal challenges corresponding to the challenge, and generate at least one valid internal challenge among the plurality of internal challenges using screen information. The physically unclonable function (PUF) block is configured to generate a plurality of valid internal responses respectively changing according to the plurality of valid internal challenges. The response generator is configured to output a response generated using the plurality of valid internal responses.

公开(公告)号：US20190116052A1

公开(公告)日：2019-04-18

申请号：US16140019

申请日：2018-09-24

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： YONGSOO KIM ,  MIJUNG NOH ,  BOHDAN KARPINSKYY ,  KYOUNGMOON AHN ,  YONG KI LEE ,  YUNHYEOK CHOI

IPC: H04L9/32 ,  H04L9/08 ,  H04L9/30 ,  G06F7/58

Abstract: A semiconductor device includes a physical unclonable function (PUF) cell array that includes PUF cells outputting first bits; a non-volatile memory that stores marking bits indicating whether the first bits are valid, first mask bits generated by masking second bits depending on parity of the second bits, and second mask bits generated by masking helper bits of the second bits, the second bits are valid bits from the first bits; an extracting unit that extracts the second bits from the first bits using the marking bits; an unmasking unit that unmasks the second bits using the first mask bits while receiving the second bits to provide the third bits; a bit decoding unit that compresses the third bits to fourth bits while receiving the third bits; and a block decoding unit that generates a security key by decoding the fourth bits and the second mask bits.

公开(公告)号：US20230052055A1

公开(公告)日：2023-02-16

申请号：US17973252

申请日：2022-10-25

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： KYOUNGMOON AHN ,  YONGSOO KIM ,  YONGKI LEE ,  YUNHYEOK CHOI ,  BOHDAN KARPINSKYY

IPC: H04L9/32 ,  H04L9/08 ,  G06F21/64

Abstract: A security device generates a key based on a physically unclonable function (PUF). The security device includes a physically unclonable function (PUF) block, an integrity detector, and a post processor. The PUF block outputs a plurality of first random signals and a plurality of corresponding first inverted random signals each having a logic level opposite to that of each of the plurality of corresponding first random signals. The integrity detector determines data integrity of the plurality of first random signals by using the plurality of first random signals and the plurality of corresponding first inverted random signals. The post processor generates a first row key that includes validity signals satisfying the data integrity.