[Cryptography] Anyone interested in a cheap security module for Raspberry Pi?

[Peter Gutmann]

Dirk-Willem van Gulik <dirkx at webweaving.org> writes:

>You may want to have a quick look at `nuclear safeguard’ techniques for
>managing enclosures (Tamper detection for safeguards’, ’treaty monitoring'.

+1.  There's been a huge amount of work done in that area, and much of it is
public, it's just quite hard to find because it's typically published as
research reports or at little-known symposia.  Here's a good starting point:

https://www.iaea.org/newscenter/multimedia/photoessays/equipment-used-safeguards

While some of the techniques are pretty labour-intensive, ultrasonic imaging
of welds, others are simple and automated.  The Cobra Seals are particularly
elegant, a mixture of relatively simple tech, fibre-optic bundles embedded in
a metallic-flake clear epoxy block, verified using the camera on a smart
phone.  Photos of them in action:

https://www.flickr.com/photos/iaea_imagebank/8367352552
https://www.flickr.com/photos/iaea_imagebank/8366286089

Peter.