A New Arbiter PUF for Enhancing Unpredictability on FPGA

Machida, Takanori; Yamamoto, Daisuke; Iwamoto, Mitsugu; Sakiyama, Kazuo

doi:10.1155/2015/864812

Cited by 65 publications

(45 citation statements)

References 25 publications

(48 reference statements)

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“…For strong PUFs, increasing the size of the PUF circuit leads to an exponential growth in the number of CRPs. For weak PUFs, it will increase linearly [12,13].…”

Section: Puf Initial Definitionsmentioning

confidence: 99%

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Physical Unclonable Functions in the Internet of Things: State of the Art and Open Challenges

Babaei

Schiele

2019

Sensors

119

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Attacks on Internet of Things (IoT) devices are on the rise. Physical Unclonable Functions (PUFs) are proposed as a robust and lightweight solution to secure IoT devices. The main advantage of a PUF compared to the current classical cryptographic solutions is its compatibility with IoT devices with limited computational resources. In this paper, we investigate the maturity of this technology and the challenges toward PUF utilization in IoT that still need to be addressed.

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“…For strong PUFs, increasing the size of the PUF circuit leads to an exponential growth in the number of CRPs. For weak PUFs, it will increase linearly [12,13].…”

Section: Puf Initial Definitionsmentioning

confidence: 99%

“…Alternatively, we can choose a (strong) PUF design with an amount of CRPs that is large enough to never reuse one. The classic tactic to have a larger number of CRPs is to occupy more computational resources on the chip [12,19]. Since computational resources are scarce in IoT devices, this approach may not fit properly.…”

Section: Defense Strategymentioning

confidence: 99%

Physical Unclonable Functions in the Internet of Things: State of the Art and Open Challenges

Babaei

Schiele

2019

Sensors

119

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“…Few papers have clear descriptions on how the RO PUF is implemented on FPGAs [10,15,16]. Incorrect HDL coding can lead to logic unit rebuilding during synthesis, which results in functionality failure.…”

Section: Ro Puf Implementation On An Fpgamentioning

confidence: 99%

Phase Calibrated Ring Oscillator PUF Design and Application

Yan

Chandy

2018

Computers

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A Ring Oscillator Physical Unclonable Function (RO PUF) is an application-constrained hardware security primitive that can be used for authentication and key generation. PUFs depend on variability during the fabrication process to produce random outputs that are nevertheless stable across multiple measurements. Though industry has a growing need for PUF implementations on Field Programmable Gate Arrays (FPGA) and Application-Specific Integrated Circuits (ASIC), the bit errors in PUF responses become a bottleneck and limit the usage. In this work, we comprehensively evaluate the RO PUF’s stability on FPGAs, and we propose a phase calibration process to improve the stability of RO PUFs. We also make full use of the instability of PUFs to provide a novel solution for authentication. The results show that the bit errors in our PUFs are reduced to less than 1%.

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“…DA-PUF can have more arbiters compared to n-XOR APUF, meanwhile the hardware cost of n-1 DAPUF is almost the same as that of n-XOR APUF. It should be noted that DA-PUF has more unreliable responses than APUF [15]. The unreliability of DAPUF could be a significant problem for the conventional authentication system.…”

Section: Double Arbiter Pufmentioning

confidence: 99%

<i>Q</i>-Class Authentication System for Double Arbiter PUF

Yashiro

Sugawara

Iwamoto

et al. 2018

IEICE Trans. Fundamentals

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Physically Unclonable Function (PUF) is a cryptographic primitive that is based on physical property of each entity or Integrated Circuit (IC) chip. It is expected that PUF be used in security applications such as ID generation and authentication. Some responses from PUF are unreliable, and they are usually discarded. In this paper, we propose a new PUF-based authentication system that exploits information of unreliable responses. In the proposed method, each response is categorized into multiple classes by its unreliability evaluated by feeding the same challenges several times. This authentication system is named Q-class authentication, where Q is the number of classes. We perform experiments assuming a challenge-response authentication system with a certain threshold of errors. Considering 4-class separation for 4-1 Double Arbiter PUF, it is figured out that the advantage of a legitimate prover against a clone is improved form 24% to 36% in terms of success rate. In other words, it is possible to improve the tolerance of machine-learning attack by using unreliable information that was previously regarded disadvantageous to authentication systems.

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A New Arbiter PUF for Enhancing Unpredictability on FPGA

Cited by 65 publications

References 25 publications

Physical Unclonable Functions in the Internet of Things: State of the Art and Open Challenges

Physical Unclonable Functions in the Internet of Things: State of the Art and Open Challenges

Phase Calibrated Ring Oscillator PUF Design and Application

<i>Q</i>-Class Authentication System for Double Arbiter PUF

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