Design of a Piezoelectric-Based Physically Unclonable Function for IoT Security

Labrado, Carson; Thapliyal, Himanshu

doi:10.1109/jiot.2018.2874626

Cited by 27 publications

(14 citation statements)

References 18 publications

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“…The microcontroller must sample each connected solar cell through its ADC and then generate a response. For the actual comparison algorithm used to generate the response, we used the one described in [17]. Our implementation required accounting for the inherent noise in the ADC.…”

Section: Software Components Of Proposed Pufmentioning

confidence: 99%

Exploration of Solar Cell Materials for Developing Novel PUFs in Cyber-Physical Systems

et al. 2020

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Internet of Things (IoT) devices can be considered a significant component within cyber-physical systems. They can provide network communication in addition to controlling the various sensors and actuators that exist within the larger cyber-physical system. IoT devices tend to be small and contain a limited battery supply. They typically have strict constraints placed on their power consumption and available hardware resources. It is for these reasons that energy-efficiency is a major consideration in the design of these resource-constrained devices. In addition, these devices are often deployed in unsecured locations which raises concerns about the security of the device. However, the limited amount of available resources presents an obstacle towards the implementation of security protocols for these cyber-physical systems. Physically Unclonable Functions (PUFs) show promise as a potential security option. PUFs can help provide protection from issues such as IC piracy, counterfeiting, etc. Furthermore, solar cells have been utilized as a power source in IoT devices. In this paper, we propose a novel solar cellbased PUF that leverages the intrinsic variations present in solar cells. As a proof of concept, we have constructed multiple copies our proposed solar cell-based PUF using amorphous silicon, monocrystalline silicon, and polycrystalline solar cells. The reliability and uniformity of the responses produced by the copies of the PUFs made from the different types of solar cells were evaluated against variations in temperature and light intensity. From our experiments, we found that with respect to temperature the range of average reliability values was 84.41-91.20% and the range of average uniformity values was 49.34-51.26%. With respect to light intensity, the range of average reliability values was 95.45-97.75% and the range of average uniformity values was 48.74-52.81%. In addition, Monte Carlo simulations performed on monocrystalline silicon resulted in a uniqueness value of 49.989%.

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Section: Software Components Of Proposed Pufmentioning

confidence: 99%

Exploration of Solar Cell Materials for Developing Novel PUFs in Cyber-Physical Systems

et al. 2020

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“…However, sensors and similar sorts of measurement devices are especially attractive for designing PUFs since their core functionality of measuring and reporting values can be directly incorporated into a PUF. Sensor PUF designs have been proposed based on a large range of components including microelectromechanical systems (MEMS)-based sensors [27,28,29], device touchscreens [30], photodiodes [31], solar cells [32], and piezoelectric sensors [33]. More information about these designs will be presented in Section V. For further information about other PUF designs, a number of existing comprehensive literature surveys are available.…”

Section: Background and Related Workmentioning

confidence: 99%

“…After this step is completed, an algorithm can be used to process the individual voltage data and construct a 128-bit response. One such example algorithm can be found in [33]. That algorithm generates a response by making a series of comparisons between total output readings for predetermined groups of a given component.…”

Section: Proposed Design Of a Thermistor Temperature Sensor-based Pufmentioning

confidence: 99%

“…This is further exacerbated by the fact that works that have proposed sensor-based designs do not tend to include performance metrics that can be directly compared with our results. Among the existing sensor-based PUF designs, we are only able to make a direct comparison of performance metrics with the piezo sensor-based design [33]. Comparisons to other designs will solely focus on the functional aspects of the PUF designs.…”

Section: Comparison To Existing Designsmentioning

confidence: 99%

“…The devices that we will specifically highlight are microelectromechanical systems (MEMs)-based sensors [27,28,29], device touchscreens [30], photodiodes [31], solar cells [32], and piezo sensors [33]. These designs have certain drawbacks that could hinder their adoption by cyber-physical systems.…”

Section: Comparison To Existing Designsmentioning

confidence: 99%

See 2 more Smart Citations

Use of Thermistor Temperature Sensors for Cyber-Physical System Security

Labrado

Thapliyal

Prowell

et al. 2019

Sensors

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The last few decades have seen a large proliferation in the prevalence of cyber-physical systems. This has been especially highlighted by the explosive growth in the number of Internet of Things (IoT) devices. Unfortunately, the increasing prevalence of these devices has begun to draw the attention of malicious entities which exploit them for their own gain. What makes these devices especially attractive is the various resource constraints present in these devices that make it difficult to add standard security features. Therefore, one intriguing research direction is creating security solutions out of already present components such as sensors. Physically Unclonable Functions (PUFs) are one potential solution that use intrinsic variations of the device manufacturing process for provisioning security. In this work, we propose a novel weak PUF design using thermistor temperature sensors. Our design uses the differences in resistance variation between thermistors in response to temperature change. To generate a PUF that is reliable across a range of temperatures, we use a response-generation algorithm that helps mitigate the effects of temperature variation on the thermistors. We tested the performance of our proposed design across a range of environmental operating conditions. From this we were able to evaluate the reliability of the proposed PUF with respect to variations in temperature and humidity. We also evaluated the PUF’s uniqueness using Monte Carlo simulations.

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Flexible and Biocompatible Physical Unclonable Function Anti‐Counterfeiting Label

Zhang²,

Wang

et al. 2021

Adv Funct Materials

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Optical physical unclonable functions (PUFs) have been proven to be one of the most effective anti‐counterfeiting strategies. However, optical PUFs endowed with flexibility and biocompatibility have not been developed, limiting their application scenarios. Herein, biocompatible and flexible optical PUF labels are developed by randomly embedding microdiamonds in silk fibroin films. The PUF labels can be conformally attached onto the surface of complex shaped objects, providing the desired protection against fake and interior products. In this system, silk fibroin films serve as a flexible and biocompatible substrate, while the Raman signal of the microdiamonds serves as response of the excitation. The extremely high stability and random distribution of the microdiamonds ensure the performance of PUFs, and the maximum encoding capability of 210000 is finally realized. The cytotoxicity analysis results also verify the biosafety of the PUF system. In addition, the as‐prepared PUF labels are attached onto the surface of polyethylene material, and human skin, and even have been implanted under chicken skin tissue, promising their practical applications.

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Design of a Piezoelectric-Based Physically Unclonable Function for IoT Security

Cited by 27 publications

References 18 publications

Exploration of Solar Cell Materials for Developing Novel PUFs in Cyber-Physical Systems

Exploration of Solar Cell Materials for Developing Novel PUFs in Cyber-Physical Systems

Use of Thermistor Temperature Sensors for Cyber-Physical System Security

Flexible and Biocompatible Physical Unclonable Function Anti‐Counterfeiting Label

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