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Design of Resistor-Capacitor Physically Unclonable Function for Resource-Constrained IoT Devices.
Sangjae Lee1, Mi-Kyung Oh1, Yousung Kang1
1Electronics and Telecommunications Research Institute, Daejeon 34129, Korea.
Sensors (Basel, Switzerland)
|January 16, 2020
Summary
Securing Internet of Things (IoT) devices is crucial. This research explores using resistor-capacitor (RC)-based physically unclonable functions (PUFs) as a cost-effective solution for enhanced IoT device security.
Area of Science:
- Cybersecurity
- Hardware Security
- Internet of Things (IoT)
Background:
- Securing Internet of Things (IoT) devices presents significant challenges.
- Physically Unclonable Functions (PUFs) offer a promising solution by leveraging hardware uncertainties for unique device identification and cryptographic key generation.
- Existing PUF implementations often involve active components, posing cost and design flexibility issues for resource-constrained IoT devices.
Purpose of the Study:
- To investigate the feasibility of employing low-cost, passive resistor-capacitor (RC) based PUFs for securing IoT devices.
- To extend previous research on RC-based PUFs and demonstrate their potential in enhancing IoT security.
Main Methods:
- Utilizing the inherent variations in charging and discharging characteristics of RC circuits to generate unique device responses.
- Implementing and evaluating RC-based PUF designs for their suitability in IoT applications.
Main Results:
- RC-based PUFs demonstrate the potential for generating device-specific, hard-to-clone cryptographic information.
- The use of passive RC components offers a cost-effective and flexible approach to PUF implementation in IoT.
Conclusions:
- RC-based PUFs present a viable and economical solution for securing low-cost and resource-constrained IoT devices.
- This approach can significantly improve the security posture of the rapidly growing IoT ecosystem.
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