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YubiKeys are vulnerable to cloning attacks thanks to newly discovered side channel
(arstechnica.com)
this post was submitted on 04 Sep 2024
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Technology
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For the price they charge, they should be made so that opening the case will destroy the contents. They could have at least potted them.
Potted?
Encasing the circuit board in epoxy. It makes it very difficult to access components without destroying it. It's also great for water proofing and increasing the mechanical robustness.
No negatives listed on the Wiki page. Are there any? Does potting increase the likely hood of overheating?
There is potting compound with high thermal conductivity for things that produce a lot of heat. A YubiKey hardly uses any power, so heat should not be an issue.
The main downsides of potting are that it makes repair practically impossible and it can add a lot of weight if there is a large volume to be filled.
that makes sense. Thank you.