Physical Unclonable Function (PUF) is a promising lightweight hardware security primitive that can extract device fingerprints for encryption or authentication. However, extracting fingerprints from either the chip or the board individually has security flaws and cannot provide hardware system-level security. This paper proposes a new Chip-PCB hybrid PUF(CPR PUF) in which Weak PUF on PCB is combined with Strong PUF inside the chip to generate massive responses under the control of challenges of on-chip Strong PUF. This structure tightly couples the chip and PCB into an inseparable and unclonable unit thus can verify the authenticity of chip as well as the board. To improve the uniformity and reliability of Chip-PCB hybrid PUF, we propose a lightweight key generator based on a reliability self-test and debiasing algorithm to extract massive stable and secure keys from unreliable and biased PUF responses, which eliminates expensive error correction processes. The FPGA-based test results show that the PUF responses after robust extraction and debiasing achieve high uniqueness, reliability, uniformity and anti-counterfeiting features. Moreover, the key generator greatly reduces the execution cost and the bit error rate of the keys is less than 10-9, the overall security of the key is also improved by eliminating the entropy leakage of helper data.
Yuanzhong XU
Hubei Key Laboratory of Solar Energy Efficient Utilization and Energy Storage Operation Control
Tao KE
Hubei Key Laboratory of Solar Energy Efficient Utilization and Energy Storage Operation Control
Wenjun CAO
Hubei Key Laboratory of Solar Energy Efficient Utilization and Energy Storage Operation Control
Yao FU
Hubei Key Laboratory of Solar Energy Efficient Utilization and Energy Storage Operation Control
Zhangqing HE
Hubei Key Laboratory of Solar Energy Efficient Utilization and Energy Storage Operation Control
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Yuanzhong XU, Tao KE, Wenjun CAO, Yao FU, Zhangqing HE, "Reliable and Efficient Chip-PCB Hybrid PUF and Lightweight Key Generator" in IEICE TRANSACTIONS on Electronics,
vol. E106-C, no. 8, pp. 432-441, August 2023, doi: 10.1587/transele.2022ECP5050.
Abstract: Physical Unclonable Function (PUF) is a promising lightweight hardware security primitive that can extract device fingerprints for encryption or authentication. However, extracting fingerprints from either the chip or the board individually has security flaws and cannot provide hardware system-level security. This paper proposes a new Chip-PCB hybrid PUF(CPR PUF) in which Weak PUF on PCB is combined with Strong PUF inside the chip to generate massive responses under the control of challenges of on-chip Strong PUF. This structure tightly couples the chip and PCB into an inseparable and unclonable unit thus can verify the authenticity of chip as well as the board. To improve the uniformity and reliability of Chip-PCB hybrid PUF, we propose a lightweight key generator based on a reliability self-test and debiasing algorithm to extract massive stable and secure keys from unreliable and biased PUF responses, which eliminates expensive error correction processes. The FPGA-based test results show that the PUF responses after robust extraction and debiasing achieve high uniqueness, reliability, uniformity and anti-counterfeiting features. Moreover, the key generator greatly reduces the execution cost and the bit error rate of the keys is less than 10-9, the overall security of the key is also improved by eliminating the entropy leakage of helper data.
URL: https://global.ieice.org/en_transactions/electronics/10.1587/transele.2022ECP5050/_p
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@ARTICLE{e106-c_8_432,
author={Yuanzhong XU, Tao KE, Wenjun CAO, Yao FU, Zhangqing HE, },
journal={IEICE TRANSACTIONS on Electronics},
title={Reliable and Efficient Chip-PCB Hybrid PUF and Lightweight Key Generator},
year={2023},
volume={E106-C},
number={8},
pages={432-441},
abstract={Physical Unclonable Function (PUF) is a promising lightweight hardware security primitive that can extract device fingerprints for encryption or authentication. However, extracting fingerprints from either the chip or the board individually has security flaws and cannot provide hardware system-level security. This paper proposes a new Chip-PCB hybrid PUF(CPR PUF) in which Weak PUF on PCB is combined with Strong PUF inside the chip to generate massive responses under the control of challenges of on-chip Strong PUF. This structure tightly couples the chip and PCB into an inseparable and unclonable unit thus can verify the authenticity of chip as well as the board. To improve the uniformity and reliability of Chip-PCB hybrid PUF, we propose a lightweight key generator based on a reliability self-test and debiasing algorithm to extract massive stable and secure keys from unreliable and biased PUF responses, which eliminates expensive error correction processes. The FPGA-based test results show that the PUF responses after robust extraction and debiasing achieve high uniqueness, reliability, uniformity and anti-counterfeiting features. Moreover, the key generator greatly reduces the execution cost and the bit error rate of the keys is less than 10-9, the overall security of the key is also improved by eliminating the entropy leakage of helper data.},
keywords={},
doi={10.1587/transele.2022ECP5050},
ISSN={1745-1353},
month={August},}
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TY - JOUR
TI - Reliable and Efficient Chip-PCB Hybrid PUF and Lightweight Key Generator
T2 - IEICE TRANSACTIONS on Electronics
SP - 432
EP - 441
AU - Yuanzhong XU
AU - Tao KE
AU - Wenjun CAO
AU - Yao FU
AU - Zhangqing HE
PY - 2023
DO - 10.1587/transele.2022ECP5050
JO - IEICE TRANSACTIONS on Electronics
SN - 1745-1353
VL - E106-C
IS - 8
JA - IEICE TRANSACTIONS on Electronics
Y1 - August 2023
AB - Physical Unclonable Function (PUF) is a promising lightweight hardware security primitive that can extract device fingerprints for encryption or authentication. However, extracting fingerprints from either the chip or the board individually has security flaws and cannot provide hardware system-level security. This paper proposes a new Chip-PCB hybrid PUF(CPR PUF) in which Weak PUF on PCB is combined with Strong PUF inside the chip to generate massive responses under the control of challenges of on-chip Strong PUF. This structure tightly couples the chip and PCB into an inseparable and unclonable unit thus can verify the authenticity of chip as well as the board. To improve the uniformity and reliability of Chip-PCB hybrid PUF, we propose a lightweight key generator based on a reliability self-test and debiasing algorithm to extract massive stable and secure keys from unreliable and biased PUF responses, which eliminates expensive error correction processes. The FPGA-based test results show that the PUF responses after robust extraction and debiasing achieve high uniqueness, reliability, uniformity and anti-counterfeiting features. Moreover, the key generator greatly reduces the execution cost and the bit error rate of the keys is less than 10-9, the overall security of the key is also improved by eliminating the entropy leakage of helper data.
ER -