Physical unclonable functions for device authentication and secret key generation
Proceedings of the 44th annual Design Automation Conference
FPGA Intrinsic PUFs and Their Use for IP Protection
CHES '07 Proceedings of the 9th international workshop on Cryptographic Hardware and Embedded Systems
Extended abstract: The butterfly PUF protecting IP on every FPGA
HST '08 Proceedings of the 2008 IEEE International Workshop on Hardware-Oriented Security and Trust
Secure and Robust Error Correction for Physical Unclonable Functions
IEEE Design & Test
Improving the quality of ring oscillator PUFs on FPGAs
WESS '10 Proceedings of the 5th Workshop on Embedded Systems Security
A PUF design for secure FPGA-based embedded systems
Proceedings of the 2010 Asia and South Pacific Design Automation Conference
Extracting secret keys from integrated circuits
IEEE Transactions on Very Large Scale Integration (VLSI) Systems
The equivalence of rank permutation codes to a new class of binary codes (Corresp.)
IEEE Transactions on Information Theory
Improving PUF security with regression-based distiller
Proceedings of the 50th Annual Design Automation Conference
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The silicon physical unclonable functions (PUF) utilize the uncontrollable variations during integrated circuit (IC) fabrication process to facilitate security related applications such as IC authentication. In this paper, we describe a new framework to generate secure PUF secret from ring oscillator (RO) PUF with improved hardware efficiency. Our work is based on the recently proposed group-based RO PUF with the following novel concepts: an entropy distiller to filter the systematic variation; a simplified grouping algorithm to partition the ROs into groups; a new syndrome coding scheme to facilitate error correction; and an entropy packing method to enhance coding efficiency and security. Using RO PUF dataset available in the public domain, we demonstrate these concepts can create PUF secret that can pass the NIST randomness and stability tests. Compared to other state-of-the-art RO PUF design, our approach can generate an average of 72% more PUF secret with the same amount of hardware.