Abstract
State of the art authentication systems depend on physical unclonable functions (PUF), physical keys that are assumed unclonable due to technological constraints. Scattering media are considered as ideal optical PUFs, because when shined by coherent illumination a unique random interference pattern is formulated.
This response is called speckle pattern and is depended on the illumination conditions and the scattering medium itself. The assumption of unclonability relies on the notion that a speckle pattern is extremely sensitive to the exact location and shape of the scatterers. We attempt to falsify this assumption by investigating if direct laser writing (DLW) technique has the potential to reproduce a scattering medium.
This response is called speckle pattern and is depended on the illumination conditions and the scattering medium itself. The assumption of unclonability relies on the notion that a speckle pattern is extremely sensitive to the exact location and shape of the scatterers. We attempt to falsify this assumption by investigating if direct laser writing (DLW) technique has the potential to reproduce a scattering medium.
| Original language | English |
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| Publication status | Published - 11 Nov 2016 |
| Event | 40th Annual Meeting NNV AMO Lunteren 2016 - Lunteren, Netherlands Duration: 11 Oct 2016 → 12 Oct 2016 Conference number: 40 |
Conference
| Conference | 40th Annual Meeting NNV AMO Lunteren 2016 |
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| Country/Territory | Netherlands |
| City | Lunteren |
| Period | 11/10/16 → 12/10/16 |