Abstract
Physical Unclonable Functions (PUFs) are primarily used for authenticating hardware devices. The objective of this research is to generate a large set of challenge-response pairs to strengthen the PUF. The Pseudo-LFSR PUF design relies on LFSR but does not contain any shift register; instead, it employs combinational circuits like inverters and XOR gates. The PUF's strength is based on the quantity of challenge-response pairs it possesses, with a larger set indicating better security and authentication. The proposed PUF has significant advantages, such as producing a large-bit response, with n bits of response captured from a single n-bit challenge. Moreover, the mapping of challenge and response pairs can be varied without disrupting the hardware structure. Typically, Physical Unclonable Functions are implemented on FPGAs and ASICs. This study discusses the detailed design of a strong LFSR-based PUF and how the modified design increases the challenge-response pairs.
Keywords
Publication details
- DOI
- 10.53540/tjer.vol21iss2pp97-104
- Journal
- The Journal of Engineering Research, 21(2), 97-104
- Publisher
- Sultan Qaboos University
- Open access
- Gold open access
- License
- CC BY-ND 4.0
Cite this article
APA 7
Reddy, J. D., Devarapalli, A., Radha, R. C., & Vittal, K. P. (2025). Design of Pseudo-LFSR Based Physical Unclonable Function. The Journal of Engineering Research, 21(2), 97-104. https://doi.org/10.53540/tjer.vol21iss2pp97-104
MLA 9
Reddy, Jeeru Dinesh, et al. "Design of Pseudo-LFSR Based Physical Unclonable Function." The Journal of Engineering Research, vol. 21, no. 2, 2025, pp. 97-104. https://doi.org/10.53540/tjer.vol21iss2pp97-104.
Chicago (author–date)
Reddy, Jeeru Dinesh, Ajaykumar Devarapalli, R C Radha, and K Panduranga Vittal. 2025. "Design of Pseudo-LFSR Based Physical Unclonable Function." The Journal of Engineering Research 21 (2): 97-104. https://doi.org/10.53540/tjer.vol21iss2pp97-104.
Harvard
Reddy, J. D., Devarapalli, A., Radha, R. C. and Vittal, K. P. (2025) 'Design of Pseudo-LFSR Based Physical Unclonable Function', The Journal of Engineering Research, 21(2), pp. 97-104. doi:10.53540/tjer.vol21iss2pp97-104.
Vancouver
Reddy JD, Devarapalli A, Radha RC, Vittal KP. Design of Pseudo-LFSR Based Physical Unclonable Function. The Journal of Engineering Research. 2025;21(2):97-104. doi:10.53540/tjer.vol21iss2pp97-104
IEEE
J. D. Reddy, A. Devarapalli, R. C. Radha, and K. P. Vittal, "Design of Pseudo-LFSR Based Physical Unclonable Function," The Journal of Engineering Research, vol. 21, no. 2, pp. 97-104, 2025, doi: 10.53540/tjer.vol21iss2pp97-104.