Solar Cell Based Physically Unclonable Function for Cybersecurity in IoT Devices

Kumar, Satyendra; Labrado, Carson; Badhan, Riasad; Thapliyal, Himanshu; Singh, Vijay Pratap

doi:10.1109/isvlsi.2018.00131

Cited by 7 publications

(8 citation statements)

References 13 publications

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“…As such, we consider the proposed method to be effective. In a prior study, 19 the uniformity and reliability of the generated ID were evaluated. Uniformity indicates the ratio of the frequency of occurrence of 0/1 in the ID bit string, and can be evaluated using the Hamming weight of the ID.…”

Section: Experiments Resultsmentioning

confidence: 99%

“…There have been a number of studies on the security of energy harvesters. [15][16][17][18][19] Reference [ 15 ] details a study on available energy consumption for encrypting on energy harvesters. Reference [16] advances studies on hardware-level measures using energy harvesting for enhancing side-channel attack resistance (tamper resistance).…”

Section: Related Studiesmentioning

confidence: 99%

“…There has also been a study in which the variation of the open circuit voltage of a solar cell is used in key generation. 19 In Ref. [19], one PUF is comprised of eight solar cells and a Tiva TM4C123GH6PM microcomputer.…”

Section: Related Studiesmentioning

confidence: 99%

“…19 In Ref. [19], one PUF is comprised of eight solar cells and a Tiva TM4C123GH6PM microcomputer. The open circuit voltage of each solar cell is A/D converted to generate the ID needed for authentication.…”

Section: Related Studiesmentioning

confidence: 99%

“…While the method proposed in Ref. [19] requires eight solar cells to authenticate one device, it utilizes multiple pieces of information and, as such, enhances authentication accuracy.…”

Section: Related Studiesmentioning

confidence: 99%

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Authentication Method using the Variation of Power Generation Time in Energy Harvester and its Evaluation

Nozaki

Yoshikawa

2019

IEEJ Trans.EIS

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Although internet of things technology is widely used in various fields, internet of things has several issues such as energy efficiency and authentication for security. The energy harvesting technology, which harvests various energy (eg, sunlight, vibration, electromagnetic wave, and so on), and converts them to electric power, has attracted attention for the solving method for the first problem. Moreover, the physical unclonable function, which uses variances of semiconductor manufacturing variations for authentication, has attracted attention for the solving method for the other problem. This study proposes a new authentication method for energy harvester. The proposed method utilizes the difference in power generation time due to manufacturing variations for the device authentication. In addition, the proposed method can be realized in very low cost because it does not require a dedicated physical unclonable function circuit. Several experiments using an actual energy harvester verify the validity of the proposed method. K E Y W O R D Sauthentication, energy harvesting, security 30

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Section: Experiments Resultsmentioning

confidence: 99%

Section: Related Studiesmentioning

confidence: 99%

Section: Related Studiesmentioning

confidence: 99%

Section: Related Studiesmentioning

confidence: 99%

“…While the method proposed in Ref. [19] requires eight solar cells to authenticate one device, it utilizes multiple pieces of information and, as such, enhances authentication accuracy.…”

Section: Related Studiesmentioning

confidence: 99%

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Authentication Method using the Variation of Power Generation Time in Energy Harvester and its Evaluation

Nozaki

Yoshikawa

2019

IEEJ Trans.EIS

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Authentication method using the variation of power generation time in energy harvester and its evaluation

Nozaki

Yoshikawa

2020

Elect Comm in Japan

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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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Solar Cell Based Physically Unclonable Function for Cybersecurity in IoT Devices

Cited by 7 publications

References 13 publications

Authentication Method using the Variation of Power Generation Time in Energy Harvester and its Evaluation

Authentication Method using the Variation of Power Generation Time in Energy Harvester and its Evaluation

Authentication method using the variation of power generation time in energy harvester and its evaluation

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

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