A FPGA-based RO PUF with LUT-Based Self-Compare Structure and Adaptive Counter Time Period Tuning

Gan, Jiayan; Zhou, Jun; Wang, Ning

doi:10.1109/iscas.2018.8351014

Cited by 7 publications

(13 citation statements)

References 9 publications

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“…We have considered both supply voltage and the temperature variation, and even the temperature range is higher by 15 • C compared to the method in [16]. Moreover, our approach provides 100% reliability in the same temperature variation range, as mentioned in [16]. The method in [18] provides reliable responses in the presence of both temperature and supply voltage variation, however, it requires post-processing to achieve that much reliability.…”

Section: Comparisonmentioning

confidence: 91%

“…The approach [16] has the highest reliability, whereas our method occupies the second position among the group. However, this approach [16] doesn't take voltage variations into consideration. We have considered both supply voltage and the temperature variation, and even the temperature range is higher by 15 • C compared to the method in [16].…”

Section: Comparisonmentioning

confidence: 97%

“…The FPGA based ROPUF design has limited access to reduce the effect of environmental noise, therefore some authors proposed LUT level modification to enhanced the RO-PUF performance. The author suggested a LUT based self compare structure, which can generate 256 bit response by tuning the LUT delay lines [16]. The approach provides an improvement in uniqueness, but the fine-tuning of delay line originates unreliable response bits.…”

Section: Related Workmentioning

confidence: 99%

“…The centroid relocation based approach shift the centroid and searches for the frequencies, which increases minimum pairwise frequency difference (χ). pairwise frequency difference (χ) is defined as the minimum frequency difference among ( M 2 ) possible pairs, and it can be evaluated using (16).…”

Section: Phase-2: Ropuf Creationmentioning

confidence: 99%

“…However, this approach [16] doesn't take voltage variations into consideration. We have considered both supply voltage and the temperature variation, and even the temperature range is higher by 15 • C compared to the method in [16]. Moreover, our approach provides 100% reliability in the same temperature variation range, as mentioned in [16].…”

Section: Comparisonmentioning

confidence: 99%

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Novel Randomized Placement for FPGA Based Robust ROPUF with Improved Uniqueness

2019

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The physical unclonable functions (PUF) are used to provide software as well as hardware security for the cyber-physical systems. They have been used for performing significant cryptography tasks such as generating keys, device authentication, securing against IP piracy, and to produce the root of trust as well. However, they lack in reliability metric. We present a novel approach for improving the reliability as well as the uniqueness of the field programmable gated arrays (FPGAs) based ring oscillator PUF and derive a random number, consuming very small area (< 1%) concerning look-up tables (LUTs). We use frequency profiling method for distributing frequency variations in ring oscillators (RO), spatially placed all across the FPGA floor. We are able to spot suitable locations for RO mapping, which leads to enhanced ROPUF reliability. We have evaluated the proposed methodology on Xilinx -7 series FPGAs and tested the robustness against environmental variations, e.g. temperature and supply voltage variations, simultaneously. The proposed approach achieves significant improvement (i) in uniqueness value upto 49.90%, within 0.1% of the theoretical value (ii) in the reliability value upto 99.70%, which signifies that less than 1 bit flipping has been observed on average, and (iii) in randomness, signified by passing NIST test suite. The response generated through the ROPUF passes all the applicable relevant tests of NIST uniformity statistical test suite.

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Section: Comparisonmentioning

confidence: 91%