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Hardware security key options?
(tsukihi.me)
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Look into SoloKeys and NitroKeys and see if there's products from those vendors that fit your needs.
As to why thisisawayoflife recommends these products (over OP's consideration of Yubico), probably because Solo and Nitro keys are open source hardware and firmware.
Nitro is a German company. Yubico is a Swedish company. I can't find where SoloKeys is located. However, the OS nature of Solo and Nitro should make that a little less important.
In my research, I've found SoloKeys may be a US company. They are headquartered in New Jersey and one Co-founder is in New York City. However, according to their WhoIs data, the domain was registered in Iceland.
From SoloKey's Solo 2A+ NFC Security Key product page "Made and programmed in Europe." https://solokeys.com/products/solo-2a-nfc-security-key?variant=40297992093889
I also recommend Nitrokey. I have a Nitrokey Pro 2 and a Nitrokey 3 NFC and they both work well. Linux support is very good, and they also have good documentation on how to do most stuff you might want to do. +1 for being open-source as well.
Nitrokey isn't fully open source though. The secure element is proprietary. But that's not their fault, OSS secure elements aren't a thing yet unfortunately, but some companies wanna bring a change in that
Well I might be ignorant of first principles, but I couldn't get a nitrokey I got for testing to work with anything.
Not that yubikey is easy.