Multibit-Generating Pulsewidth-Based Memristive-PUF Structure and Circuit Implementation
- 주제(키워드) hardware security , physical unclonable function (PUF) , cross-point array , nanoelectronic , memristor
- 주제(기타) Engineering, Electrical & Electronic
- 설명문(일반) [Choi, Seoyeon; Kim, Dayoung; Choi, Yunyeong; Shin, Hyungsoon] Ewha Womans Univ, Dept Elect & Elect Engn, Seoul 03760, South Korea; [Sun, Wookyung] Seoul Natl Univ, Dept Elect & Comp Engn, Seoul 08826, South Korea
- 등재 SCIE, SCOPUS
- OA유형 Green Published, gold
- 발행기관 MDPI
- 발행년도 2020
- 총서유형 Journal
- URI http://www.dcollection.net/handler/ewha/000000174651
- 본문언어 영어
- Published As http://dx.doi.org/10.3390/electronics9091446
초록/요약
As Internet of Things (IoT) devices have evolved, physical unclonable functions (PUFs) have become a popular solution for hardware security. In particular, memristor devices are receiving attention as suitable candidates for reliable PUFs because they can be integrated into nano-cross point array circuits with ultra-high efficiency. However, it has been found that typical 1-bit generating PUFs consume too many challenge-response pairs (CRPs) to generate a single response. This issue has to be overcome to construct a strong and reliable PUF with a large number of valid CRPs. We suggest a bank design and quantizing entropy source method for constructing a multibit-generating PUF. In this paper, we propose a new pulsewidth-based memristive PUF (pm-PUF) architecture that incorporates analog memristor devices and a nano-cross point array. We describe the architecture's circuit implementation and its operating process in detail. We also evaluate the inter and intra performances of the pm-PUF in terms of randomness, diffuseness, uniqueness, and steadiness to show that the proposed pm-PUF will be a promising solution for a high-density hardware security system.
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