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Multibit-Generating Pulsewidth-Based Memristive-PUF Structure and Circuit Implementation
- Title
- Multibit-Generating Pulsewidth-Based Memristive-PUF Structure and Circuit Implementation
- Authors
- Choi, Seoyeon; Kim, Dayoung; Choi, Yunyeong; Sun, Wookyung; Shin, Hyungsoon
- Ewha Authors
- 신형순
- SCOPUS Author ID
- 신형순
- Issue Date
- 2020
- Journal Title
- ELECTRONICS
- ISSN
- 2079-9292
- Citation
- ELECTRONICS vol. 9, no. 9
- Keywords
- hardware security; physical unclonable function (PUF); cross-point array; nanoelectronic; memristor
- Publisher
- MDPI
- Indexed
- SCIE; SCOPUS
- Document Type
- Article
- Abstract
- 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.
- DOI
- 10.3390/electronics9091446
- Appears in Collections:
- 공과대학 > 전자전기공학전공 > Journal papers
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