ODHD: On-Demand Helper Data generation for reliable NVM-free key derivation from SRAM PUF

This academic paper presents ODHD, a method for generating helper data that enables reliable key derivation from SRAM PUF (static random-access memory physical unclonable function, a hardware feature that extracts unique cryptographic keys from the inherent variations in memory chips) without needing non-volatile memory (permanent storage like flash drives). The approach addresses the challenge of creating stable, reproducible keys from noisy hardware sources for secure cryptographic applications in resource-constrained devices.