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학술지 Design of Resistor-Capacitor Physically Unclonable Function for Resource-Constrained IoT Devices
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저자
이상재, 오미경, 강유성, 최두호
발행일
202001
출처
Sensors, v.20 no.2, pp.1-16
ISSN
1424-8220
출판사
MDPI
DOI
https://dx.doi.org/10.3390/s20020404
협약과제
20HR1700, (총괄+1세부) IoT 디바이스 자율 신뢰보장 기술 및 글로벌 표준기반 IoT 통합보안 오픈 플랫폼 기술개발, 강유성
초록
Keeping IoT devices secure has been a major challenge recently. One of the possible solutions to secure IoT devices is to use a physically unclonable function (PUF). A PUF is a security primitive that can generate device-specific cryptographic information by extracting the features of hardware uncertainty. Because PUF instances are very difficult to replicate even by the manufacturer, the generated bit sequence can be used as cryptographic keys or as a unique identifier for the device. Regarding the implementation of PUF, the majority of PUFs introduced over the past decade are in the form of active components and have been implemented as separate chips or embedded as a part of a chip, making it difficult to use them in low-cost IoT devices due to cost and design flexibility. One approach to easily adopt PUFs in resource-constrained IoT devices is to use passive components such as resistors and capacitors (RC) that can be configured at low cost. The main feature of this RC-based PUF is that it extracts the small difference caused by charging and discharging of RC circuits and uses it as a response. In this paper, we extend the previous research and show the possibility to secure IoT devices by using the RC-based PUF.
키워드
Hardware security, IoT, Passive component, Physically unclonable function, Resistor-capacitor
KSP 제안 키워드
Active components, Design flexibility, Hardware Security, IoT Devices, Low-cost IoT, Passive components, RC circuit, Resource-constrained, Secure IoT, Unique identifier, charging and discharging
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