Abstract
Physically unclonable functions (PUFs) represent an important hardware security primitive. SRAM-based PUFs are the most popular studied version of PUFs. Although several studies have been conducted on SRAM-based PUFs, none of these have investigated the bias patterns in SRAM-PUFs. This article, for the first time, analyzes those patterns and their relationships to PUF characteristics, such as reliability, entropy, robustness, etc.