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.
Purism is a new player in the security key and multi-factor authentication markets. With the introduction of the Librem Key, Purism joins the ranks of other players—such as Yubico, Google, RSA and so on—in providing hardware tokens for multi-factor authentication.