Selected Bit-Line Current PUF: Implementation of Hardware Security Primitive Based on a Memristor Crossbar Array
- 주제(키워드) Physical unclonable function (PUF) , hardware security , memristor , crossbar array
- 주제(기타) Computer Science, Information Systems; Engineering, Electrical & Electronic; Telecommunications
- 설명문(일반) [Kim, Dayoung; Choi, Yunyeong; Shin, Hyungsoon] Ewha Womans Univ, Dept Elect & Elect Engn, Seoul 03760, South Korea; [Kim, Dayoung; Shin, Hyungsoon] Ewha Womans Univ, Grad Program Smart Factory, Seoul 03760, South Korea; [Kim, Tae-Hyeon; Lee, Jungwon; Sun, Wookyung; Park, Byung-Gook] Seoul Natl Univ, Dept Elect & Comp Engn, Seoul 08826, South Korea; [Lee, Geun Ho; Kim, Hyungjin] Inha Univ, Dept Elect Engn, Incheon 22212, South Korea
- 등재 SCIE, SCOPUS
- 발행기관 IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
- 발행년도 2021
- 총서유형 Journal
- URI http://www.dcollection.net/handler/ewha/000000183525
- 본문언어 영어
- Published As http://dx.doi.org/10.1109/ACCESS.2021.3108534
초록/요약
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.
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