Scalable and CMOS compatible silicon photonic physical unclonable functions for supply chain assurance
Abstract
We demonstrate the uniqueness, unclonability and secure authentication of N = 56 physical unclonable functions (PUFs) realized from silicon photonic moiré quasicrystal interferometers. Compared to prior photonic-PUF demonstrations typically limited in scale to only a handful of unique devices and on the order of 10 false authentication attempts, this work examines > 103 inter-device comparisons and false authentication attempts. Device fabrication is divided across two separate fabrication facilities, allowing for cross-fab analysis and emulation of a malicious foundry with exact knowledge of the PUF photonic circuit design and process. Our analysis also compares cross-correlation based authentication to the traditional Hamming distance method and experimentally demonstrates an authentication error rate AER = 0%, false authentication rate FAR = 0%, and an estimated probability of cloning below 10−30. This work validates the potential scalability of integrated photonic-PUFs which can attractively leverage mature wafer-scale manufacturing and automated contact-free optical probing. Such structures show promise for authenticating hardware in the untrusted supply chain or augmenting conventional electronic-PUFs to enhance system security.
Document Details
- Document Type
- Pub Defense Publication
- Publication Date
- Sep 19, 2022
- Source ID
- 10.1038/s41598-022-19796-z
Entities
People
- Azadeh Famili
- Farhan Bin Tarik
- Judson D Ryckman
- Yingjie Lao
Organizations
- Air Force Office of Scientific Research
- Clemson University