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Use A YubiKey For PGP Signing, Encryption, And Authentication

As you know, based on a few of the tutorials that I’ve published recently, I have a YubiKey that I’ve been learning how to take full advantage of. In previous tutorials I demonstrated how to implement U2F in your web application, but most YubiKey devices do so much more than just U2F authentication. For example, the YubiKey NEO and YubiKey 5 have support for U2F, FIDO2, OpenPGP, OTP, and a bunch of other crazy technologies.

In this tutorial, we’re going to explore using the YubiKey as a smart card for storing our PGP signing, encryption, and authentication subkeys.

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