A Generation and Recovery Framework for Silicon PUFs based Cryptographic Key

June 2021
Engineering and Numerical Tools
Communications avec actes dans un congrès international
Auteurs : samir Ouchani (LINEACT)
Conférence : Intelligent and Autonomuous Systems, 16 June 2021

Integrated Circuits (ICs) and electronic devices became the main part of human daily life (mobile, home, car, etc). However, for the safety of the transported information to and from these devices, some speci cs security measures should be taken. In general, ICs are a source of high randomness due to the manufacturing variation process which elects them to be potential physically unclonable functions (PUFs) and known as Silicon PUFs (SPUFs). Many propositions have shown that SPUFs could guarantee the three pillars of security: con dentiality, authenticity, and privacy of the user information by these devices. More importantly, extracting strong cryptographic keys from them, error correction, and hashing code techniques should be considered. Unfortunately concerning Silicon PUFs, generating many time the same response for the same input is not possible due to many factors especially environmental variables such as noise, supply voltage, temperature and aging. To overcome this issue and recover the original response from the noisy one, a secure sketch based approach is recommended. This paper proposes a framework that generates easily the cryptographic keys and e ciently recovers them for a Silicon PUF. The experiments have been validated on an Arbiter PUF under di erent temperatures.