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Selected Bit-Line Current PUF: Implementation of Hardware Security Primitive Based on a Memristor Crossbar Array
- Title
- Selected Bit-Line Current PUF: Implementation of Hardware Security Primitive Based on a Memristor Crossbar Array
- Authors
- Kim, Dayoung; Kim, Tae-Hyeon; Choi, Yunyeong; Lee, Geun Ho; Lee, Jungwon; Sun, Wookyung; Park, Byung-Gook; Kim, Hyungjin; Shin, Hyungsoon
- Ewha Authors
- 신형순
- SCOPUS Author ID
- 신형순
- Issue Date
- 2021
- Journal Title
- IEEE ACCESS
- ISSN
- 2169-3536
- Citation
- IEEE ACCESS vol. 9, pp. 120901 - 120910
- Keywords
- Physical unclonable function (PUF); hardware security; memristor; crossbar array
- Publisher
- IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
- Indexed
- SCIE; SCOPUS
- Document Type
- Article
- Abstract
- In this paper, a physical unclonable function (PUF), a type of hardware security device, is proposed to overcome the limitations of existing security schemes. A 32 x 32 crossbar array using TiOx/Al2O3- based memristors was fabricated, and electrical characteristics including its set voltage distribution were analyzed. The memristor switching characteristics model is described in a simplified space-charge-limited current (SCLC) regime. Based on this I-V model, selected bit-line current PUFs (SBC-PUFs) were designed with 32 x 32, 64 x 64, and 128 x 128 crossbar arrays. The entropy source of these PUFs is the set voltage deviation in the fabricated memristors. Due to these characteristics, the SBC-PUF can exploit the broad resistance distribution near the switching region, including the internal resistance distributions of the high resistance state (HRS) and low resistance state (LRS). The SBC-PUF performance was evaluated for randomness/uniformity, correctness/reliability, and uniqueness by calculating the Hamming weight and intra/inter Hamming distance of challenge-response pairs (CRPs). The designed structure demonstrates high-security performance due to the high value of these indicators and the large number of CRPs. Furthermore, the devised PUF has a higher prediction error rate than arbiter PUF in machine learning attacks. This study verified that the SBC-PUF using the memristor of the crossbar array structure is safe enough to be used for hardware security.
- DOI
- 10.1109/ACCESS.2021.3108534
- Appears in Collections:
- 공과대학 > 전자전기공학전공 > Journal papers
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