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pam-u2f

With a FIDO2 stick like the Solo V2 it is possible under Linux to log in by just entering a PIN and tapping the FIDO2 stick. This new type of secure and user-friendly login is made possible by the Pluggable Authentication Module (PAM) for the Universal Second Factor (U2F) for short pam-u2f since version 1.1.0.

pam-u2f