That won't protect against the dopant level attacks, but you could have an automated test run to ascertain dopant levels on chips that you decapped - if you wan

That won't protect against the dopant level attacks, but you could have an automated test run to ascertain dopant levels on chips that you decapped - if you want to take paranoia to the absolute limits. That would take serious time and money to setup computer controlled micropositioners and expensive source measurement units, etc. Iirc, there was a group from the CCC working on using image recognition algorithms to extract netlists from decapped chips. I'll have to look that up...