International journal of advanced smart convergence

The Institute of Internet, Broadcasting and Communication (한국인터넷방송통신학회)
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An Extension of Firmware-based LFSR One-Time Password Generators

  • HoonJae Lee (Dept. Information Security, Dongseo University) ;
  • ByungGook Lee (Dept. Computer Engineering, Dongseo University)
  • Received : 2024.04.10
  • Accepted : 2024.04.21
  • Published : 2024.06.30
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Abstract

In this paper, we propose two 127-bit LFSR (Linear Feedback Shift Register)-based OTP (One-Time Password) generators. One is a 9-digit decimal OTP generator with thirty taps, while the other is a 12-digit OTP generator with forty taps. The 9-digit OTP generator includes only the positions of Fibonacci numbers to enhance randomness, whereas the 12-digit OTP generator includes the positions of prime numbers and odd numbers. Both proposed OTP generators are implemented on an Arduino module, and randomness evaluations indicate that the generators perform well across six criteria and are straightforward to implement with Arduino.

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Acknowledgement

This work was supported by Dongseo University, "Dongseo Cluster Project" Research Fund of 2023 (DSU-20230004).

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