Interchip variation (Pinter) is a statistical metric used to quantify the uniqueness of a PUF design. Statistically, it can be defined as the probability that two randomly chosen PUFs generate different responses for the same challenge. If P(R=1) is the probability of the response being 1, ...
According to this security metric, a substantial change in the encrypted image should result when a small change is introduced in either the plaintext image or the key. The mathematical expression for MSE is as follows: $$\begin{aligned} \mathrm {MSE}=\frac{1}{W \times H} \sum _{i=...
The quality of PUFs is based on certain metrics, such as inter-chip distance (uniqueness), BER (reliability), and entropy (randomness): The inter-chip Hamming Distance (𝐻𝐷𝑖𝑛𝑡𝑒𝑟HDinter) is a metric used to measure the uniqueness of PUFs.𝐻𝐷𝑖𝑛𝑡𝑒𝑟HDinteris...