Ring oscillator physically unclonable function using sequential ring oscillator pairs for more challenge-response-pairs

Julius Han Loong Teo, Noor Alia Nor Hashim, Azrul Ghazali, Fazrena Azlee Hamid

Research output: Contribution to journalArticle

2 Citations (Scopus)


The ring oscillator physically unclonable function (ROPUF) is one of the several types of PUF that has great potential to be used for security purposes. An alternative ROPUF design is proposed with two major differences. Firstly, the memristor is included in the ring oscillators as it is claimed to produce a more random oscillation frequency. Other reasons are its memory-like properties and variable memristance, relative compatibility with CMOS, and small size. Secondly, a different method of generating the response is implemented whereby a sequence of selection of ring oscillator pairs are used to generate a multiple bit response, rather than using only one ring oscillator pair to generate a single bit response. This method significantly expands the set of challenge-response pairs. The proposed memristor-based ROPUF shows 48.57%, 51.43%, and 51.43% for uniqueness, uniformity, and bit-aliasing, respectively. Also, modelling by support vector machine (SVM) on the proposed memristor-based ROPUF only shows 61.95% accuracy, thereby indicating strong resistance against SVM.

Original languageEnglish
Pages (from-to)892-901
Number of pages10
JournalIndonesian Journal of Electrical Engineering and Computer Science
Issue number3
Publication statusPublished - Mar 2019

All Science Journal Classification (ASJC) codes

  • Signal Processing
  • Information Systems
  • Hardware and Architecture
  • Computer Networks and Communications
  • Control and Optimization
  • Electrical and Electronic Engineering

Fingerprint Dive into the research topics of 'Ring oscillator physically unclonable function using sequential ring oscillator pairs for more challenge-response-pairs'. Together they form a unique fingerprint.

  • Cite this