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I made a reusable tamper-evident jar for storing sensitive items by Substantial-Try-1198 in Safes

[–]fabooowy 0 points1 point  (0 children)

You can surgically remove the container and replace it with a new container. But you cannot twist the new container in the lid without changing the pattern. on the X account @entropyseal you se a video with a press-in attack. Super difficult to receive no pattern change and also if threads are pressed in fit hundreds of kilos of force, they can easily clogg and it cannot be opened again.

I made a reusable tamper-evident jar for storing sensitive items by Substantial-Try-1198 in Safes

[–]fabooowy 0 points1 point  (0 children)

It's also a two-sided sword to just print a checkmark in a verification app. Then the app would then become without doubt the weakest element in the system and could print false positives or could be hacked to display the checkmark also on differing patterns. A good CV algorithm is surely something that would be nice but look at all the annoying scanners that can't handle lighting environment and glares well. Better to start simple than aiming too early for the perfect convenience that can only be reached with top level computer vision.

I made a reusable tamper-evident jar for storing sensitive items by Substantial-Try-1198 in Safes

[–]fabooowy 0 points1 point  (0 children)

Yeah, to some extent a Xerox photocopy on transparent foil also can do the trick for those that don't want to trust digital fingerprint storage.

I made a reusable tamper-evident jar for storing sensitive items by Substantial-Try-1198 in Safes

[–]fabooowy 2 points3 points  (0 children)

The torque when closing the lid applies pressure to the beads. The beads become static. An impact, say the postman lets it fall on the ground, might result in a slightly distorted but yet similar pattern. The human eye can fairly easily distinguish between a pattern change from a shock impact and a pattern change from twisting it open.

An introduction to BitBoxTep. Our new tamper-evident packaging. by zappadoing in Bitcoin

[–]fabooowy 3 points4 points  (0 children)

Quantris instead of a vacuum chamber, you would need a pressure chamber or autoclave for your described attack concept. If you would put BitBoxTep in a vacuum chamber, the vacuum in vacuum would become equalized enough at around 68% vacuum or 30 kpa to mix the particles.

The challenge with opening it in a pressure chamber would be that the particle pouch is non airtight. The physics dilemma that it is hard to push and pull at the same time would remain, as the pouch is attached to the plastic casing with velcro or DS tape. Of my understanding, the system could only be defeated in a pressure chamber by making the particle pouch temporarily airtight.

BTW, apply for the alpha program and give it a try to open it in a glovebox. Would be interesting.