alheyasat21estimation
- Sara Faour
Title of the paper:Estimation during Design Phases of Suitable SRAM Cells for PUF Applications Using Separatrix and Mismatch Metrics
Available at:Estimation during Design Phases of Suitable SRAM Cells for PUF Applications Using Separatrix and Mismatch Metrics
Abstract: Physically unclonable functions (PUFs) are used as low-cost cryptographic primitives in
device authentication and secret key creation. SRAM-PUFs are well-known as entropy sources; nevertheless,
due of non-deterministic noise environment during the power-up process, they are subject
to low challenge-response repeatability. The dependability of SRAM-PUFs is usually accomplished
by combining complex error correcting codes (ECCs) with fuzzy extractor structures resulting in
an increase in power consumption, area, cost, and design complexity. In this study, we established
effective metrics on the basis of the separatrix concept and cell mismatch to estimate the percentage
of cells that, due to the effect of variability, will tend to the same initial state during power-up. The
effects of noise and temperature in cell start-up processes were used to validate the proposed metrics.
The presented metrics may be applied at the SRAM-PUF design phases to investigate the impact of
different design parameters on the percentage of reliable cells for PUF applications.
