pam-u2f ☆
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Description:
Provides an easy way to use U2F-compliant authenticators with PAM
Type: Formula  |  Tracked Since: Dec 28, 2025
Links: Homepage  |  formulae.brew.sh
Category: Security
Tags: pam u2f fido2 2fa security authentication
Install: brew install pam-u2f
About:
pam-u2f is a PAM module that enables two-factor authentication using U2F and FIDO2 hardware security keys. It allows users to log in to Linux or Unix systems by verifying their presence via a physical token, adding a strong layer of security beyond passwords. The module is designed to be simple to configure and integrates seamlessly with existing PAM setups.
Key Features:
  • Supports U2F and FIDO2 standards
  • Simple PAM integration
  • Challenge-response authentication
  • Configurable fallback to password-only login
Use Cases:
  • Securing SSH login with hardware tokens
  • Protecting console/sudo access on servers
  • Enforcing two-factor authentication for desktop Linux
Alternatives:
  • pam-u2f – This is the primary package; alternatives like Google Authenticator (TOTP) use a different method (time-based codes vs hardware tokens).
Version History
Detected Version Rev Change Commit
Jan 16, 2025 8:05pm 0 VERSION_BUMP 0a6bf66f
Aug 2, 2024 5:42pm 1 VERSION_BUMP 2364c49e
Mar 15, 2023 2:40am 0 VERSION_BUMP 1245bcef
Mar 15, 2023 2:40am 0 VERSION_BUMP 2a1c8d9b
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