A 100% Stable Sense-Amplifier-Based Physically Unclonable Function With Individually Embedded Non-Volatile Memory

In this paper is presented a sense-amplifier-based physically unclonable function (PUF) with individually embedded non-volatile memory (eNVM) that offers 100% stable random bits. The proposed eNVM, which stores the initially generated random key, biases the sense-amplifier to reproduce always the sa...

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Bibliographic Details
Published in:IEEE access 2020, Vol.8, p.21857-21865
Main Authors: Choi, Kang-Un, Baek, Seungbum, Heo, Jino, Hong, Jong-Phil
Format: Article
Language:English
Subjects:
CMOS
CMOS process
Computer architecture
High-voltage techniques
information security
IoT device
Logic gates
non-volatile memory
Nonvolatile memory
Physical unclonable function
physically unclonable function
Sense amplifiers
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Summary:In this paper is presented a sense-amplifier-based physically unclonable function (PUF) with individually embedded non-volatile memory (eNVM) that offers 100% stable random bits. The proposed eNVM, which stores the initially generated random key, biases the sense-amplifier to reproduce always the same key as the initial value through a feedback path. In order to verify the performance of the proposed architecture, a 256-bit PUF with a core area of 0.160 mm 2 was implemented in a 180 nm standard CMOS process. The measurement results of the implemented PUF show an intra-chip Hamming Distance (HD) of 0 (100% stability) and inter-chip HD of 0.5047.
ISSN:2169-3536
2169-3536
DOI:10.1109/ACCESS.2019.2961967