A looong time ago, I presented an idea of making it relatively straightforward to detect when the electronics of an Anelok device have been tampered with.
http://lists.en.qi-hardware.com/pipermail/discussion/2014-May/010600.html Back then, I thought of some resin or silicone, into which strings of paint are mixed. That ought to work but would require the development of a new production process. Today, I found this: https://security.stackexchange.com/questions/88947/prevention-measures-against-laptop-seizure-at-us-borders#comment148715_88960 and then this https://motherboard.vice.com/en_us/article/itll-take-more-than-glitter-nail-polish-to-stop-snooping Glitter nail polish is readily available, not too expensive, and ought to do the trick just as well. It may be less friendly for (legitimate) rework/repair than, say, silicone, but that could probably be fixed by using a suitable substrate (polyurethane or such). Also simply not caring too much about the repairability of "sealed" boards (and making the sealing optional) may be an option. I found these pictures of such polish with good contrast and high variability: http://followtheyellowpolishroad.blogspot.com.ar/2012/07/kleancolor-shooting-star.html?spref=pi Quick research on the local eBay equivalent showed that also just the ingredients of glitter nail polish are available, so one could fine-tune colors and particle density. The particles probably contain metals, so they're probably conductive. Thus, a first protective coating would be needed. - Werner _______________________________________________ Qi Hardware Discussion List Mail to list (members only): [email protected] Subscribe or Unsubscribe: http://lists.en.qi-hardware.com/mailman/listinfo/discussion
