Optical Verification of Physically Unclonable Function Devices Based on Spin‐Orbit Torque Switching
Abstract Physically unclonable functions (PUFs) are used for various applications such as anticounterfeiting, authentication, and secret key generation. They are generally evaluated through electrical measurements, requiring much time and effort due to the many electrical connections required. This...
| Main Authors: | , , , , , , , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
Wiley-VCH
2023-07-01
|
| Series: | Advanced Electronic Materials |
| Subjects: | |
| Online Access: | https://doi.org/10.1002/aelm.202300056 |
| _version_ | 1797672144177463296 |
|---|---|
| author | Jeong Kyu Lee Jiyoung Lee Seok In Yoon Min Hyeok Lee Jin Seo Lee Yunho Jang Dae‐Yun Kim Sug‐Bong Choe Jongsun Park Young Keun Kim |
| author_facet | Jeong Kyu Lee Jiyoung Lee Seok In Yoon Min Hyeok Lee Jin Seo Lee Yunho Jang Dae‐Yun Kim Sug‐Bong Choe Jongsun Park Young Keun Kim |
| author_sort | Jeong Kyu Lee |
| collection | DOAJ |
| description | Abstract Physically unclonable functions (PUFs) are used for various applications such as anticounterfeiting, authentication, and secret key generation. They are generally evaluated through electrical measurements, requiring much time and effort due to the many electrical connections required. This study proposes an optical verification of spin‐orbit torque (SOT) devices for PUF design. SOT devices have gained much attention because they resist degradation and thermal changes and can generate secret keys with high reproducibility. A simple optical method based on the magneto‐optical Kerr effect is introduced to verify the authenticity of the proposed SOT PUF device. Furthermore, this study assesses the feasibility of using a W/CoFeB/MgO/Ta structure as a PUF. The 24‐bit device shows a reliability of 97.8 ± 1.03%, making it a promising candidate for use as a spintronics‐based PUFs. |
| first_indexed | 2024-03-11T21:25:52Z |
| format | Article |
| id | doaj.art-5acadbfba0084f6da5091fe0a1b8ba94 |
| institution | Directory Open Access Journal |
| issn | 2199-160X |
| language | English |
| last_indexed | 2024-03-11T21:25:52Z |
| publishDate | 2023-07-01 |
| publisher | Wiley-VCH |
| record_format | Article |
| series | Advanced Electronic Materials |
| spelling | doaj.art-5acadbfba0084f6da5091fe0a1b8ba942023-09-28T04:42:52ZengWiley-VCHAdvanced Electronic Materials2199-160X2023-07-0197n/an/a10.1002/aelm.202300056Optical Verification of Physically Unclonable Function Devices Based on Spin‐Orbit Torque SwitchingJeong Kyu Lee0Jiyoung Lee1Seok In Yoon2Min Hyeok Lee3Jin Seo Lee4Yunho Jang5Dae‐Yun Kim6Sug‐Bong Choe7Jongsun Park8Young Keun Kim9Department of Materials Science and Engineering Korea University Seoul 02841 Republic of KoreaDepartment of Materials Science and Engineering Korea University Seoul 02841 Republic of KoreaDepartment of Materials Science and Engineering Korea University Seoul 02841 Republic of KoreaDepartment of Materials Science and Engineering Korea University Seoul 02841 Republic of KoreaDepartment of Semiconductor Systems Engineering Korea University Seoul 02841 Republic of KoreaSchool of Electrical Engineering Korea University Seoul 02841 Republic of KoreaSamsung Advanced Institute of Technology Samsung Electronics Suwon Gyeonggi‐do 16678 Republic of KoreaDepartment of Physics and Astronomy Seoul National University Seoul 08826 Republic of KoreaSchool of Electrical Engineering Korea University Seoul 02841 Republic of KoreaDepartment of Materials Science and Engineering Korea University Seoul 02841 Republic of KoreaAbstract Physically unclonable functions (PUFs) are used for various applications such as anticounterfeiting, authentication, and secret key generation. They are generally evaluated through electrical measurements, requiring much time and effort due to the many electrical connections required. This study proposes an optical verification of spin‐orbit torque (SOT) devices for PUF design. SOT devices have gained much attention because they resist degradation and thermal changes and can generate secret keys with high reproducibility. A simple optical method based on the magneto‐optical Kerr effect is introduced to verify the authenticity of the proposed SOT PUF device. Furthermore, this study assesses the feasibility of using a W/CoFeB/MgO/Ta structure as a PUF. The 24‐bit device shows a reliability of 97.8 ± 1.03%, making it a promising candidate for use as a spintronics‐based PUFs.https://doi.org/10.1002/aelm.202300056electronic devicesmagneto‐optical Kerr effectphysically unclonable functionsreliabilitysecret keysspin‐orbit torque |
| spellingShingle | Jeong Kyu Lee Jiyoung Lee Seok In Yoon Min Hyeok Lee Jin Seo Lee Yunho Jang Dae‐Yun Kim Sug‐Bong Choe Jongsun Park Young Keun Kim Optical Verification of Physically Unclonable Function Devices Based on Spin‐Orbit Torque Switching Advanced Electronic Materials electronic devices magneto‐optical Kerr effect physically unclonable functions reliability secret keys spin‐orbit torque |
| title | Optical Verification of Physically Unclonable Function Devices Based on Spin‐Orbit Torque Switching |
| title_full | Optical Verification of Physically Unclonable Function Devices Based on Spin‐Orbit Torque Switching |
| title_fullStr | Optical Verification of Physically Unclonable Function Devices Based on Spin‐Orbit Torque Switching |
| title_full_unstemmed | Optical Verification of Physically Unclonable Function Devices Based on Spin‐Orbit Torque Switching |
| title_short | Optical Verification of Physically Unclonable Function Devices Based on Spin‐Orbit Torque Switching |
| title_sort | optical verification of physically unclonable function devices based on spin orbit torque switching |
| topic | electronic devices magneto‐optical Kerr effect physically unclonable functions reliability secret keys spin‐orbit torque |
| url | https://doi.org/10.1002/aelm.202300056 |
| work_keys_str_mv | AT jeongkyulee opticalverificationofphysicallyunclonablefunctiondevicesbasedonspinorbittorqueswitching AT jiyounglee opticalverificationofphysicallyunclonablefunctiondevicesbasedonspinorbittorqueswitching AT seokinyoon opticalverificationofphysicallyunclonablefunctiondevicesbasedonspinorbittorqueswitching AT minhyeoklee opticalverificationofphysicallyunclonablefunctiondevicesbasedonspinorbittorqueswitching AT jinseolee opticalverificationofphysicallyunclonablefunctiondevicesbasedonspinorbittorqueswitching AT yunhojang opticalverificationofphysicallyunclonablefunctiondevicesbasedonspinorbittorqueswitching AT daeyunkim opticalverificationofphysicallyunclonablefunctiondevicesbasedonspinorbittorqueswitching AT sugbongchoe opticalverificationofphysicallyunclonablefunctiondevicesbasedonspinorbittorqueswitching AT jongsunpark opticalverificationofphysicallyunclonablefunctiondevicesbasedonspinorbittorqueswitching AT youngkeunkim opticalverificationofphysicallyunclonablefunctiondevicesbasedonspinorbittorqueswitching |