MRAM Devices to Design Ternary Addressable Physically Unclonable Functions
Abstract
We introduce a novel approach to constructing ternary addressable physically unclonable functions (TAPUFs) using magnetoresistive random-access memory (MRAM) devices. TAPUFs use three states (1, 0, and X) to track unstable cells. The proposed TAPUF leverages the resistance properties of MRAM cells to produce unique digital fingerprints that can be effectively utilized in cryptographic protocols. We exploit the cell-to-cell variations in resistance values to generate reliable cryptographic keys and true random numbers, which can add protection against certain attacks. To evaluate the performance of the TAPUF, various tests were conducted, including assessments of inter-cell to intra-cell variation, inter-distance, bit error rate (BER), and temperature variation. These experiments were conducted using a low-power client device to replicate practical scenarios. The obtained results demonstrate that the proposed TAPUF exhibits exceptional scalability, energy efficiency, and reliability.
Document Details
- Document Type
- Pub Defense Publication
- Publication Date
- Aug 02, 2023
- Source ID
- 10.3390/electronics12153308
Entities
People
- Bertrand Cambou
- Mahafujul Alam
- Manuel Aguilar Rios
Organizations
- Northern Arizona University
- United States Army