Low-Overhead Implementation of a Soft Decision Helper Data Algorithm for SRAM PUFs

The theoretical study of a cryptographic scheme aims to provide a well defined and quantitative understanding of its security. However, when the scheme enters the practical domain, more parameters join in the game. Using a Physically Unclonable Function (PUF) to extract a secret key from the unique submicron structure of a device, instead of storing it in non-volatile memory, provides interesting advantages like physical unclonability and tamper evidence. However, an additional Helper Data Algorithm (HDA) is required to deal with the fuzziness of the PUF's responses.

Provided by: International Association for Cryptologic Research Topic: Security Date Added: Jun 2009 Format: PDF

Find By Topic