Subj : Huang: IRIS (Infra-Red, in situ) Project Updates
To   : All
From : LWN.net
Date : Sun Mar 10 2024 10:30:05

Huang: IRIS (Infra-Red, in situ) Project Updates

Date:
Sun, 10 Mar 2024 10:24:53 +0000

Description:
Andrew 'bunnie' Huang provides an update on
his IRIS infrared chip-scanning project as the starting point for a
detailed summary on how chip customers can detect forgeries and
modifications in general. The technique works because although silicon looks 
opaque at
	visible light, it is transparent starting at near-infrared
	wavelengths (roughly 1000 nm and longer). Today's commodity optics
	and CMOS cameras are actually capable of working with lights at
	this wavelength; thus, IRIS is a low-cost and effective technique
	for confirming the construction of chips down to block level. For
	example, IRIS can readily help determine if a chip has the correct
	amount of RAM, number of CPU cores, peripherals, bond pads,
	etc. This level of verification would be sufficient to deter most
	counterfeits or substitutions.

======================================================================
Link to news story:
https://lwn.net/Articles/964956/


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