The Librem Key is a new hardware token for improving Linux security
by adding a physical authentication factor to booting, login and disk
decryption on supported systems. It also has some features that make it
a good general-purpose OpenPGP smart card.
This article looks at how the Librem Key stacks up against
other multi-factor tokens like the YubiKey 5 and also considers what
makes the Librem Key a unique trusted-computing tool.