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remoteu2f - Use U2F for PAM remotely

remoteu2f is a project that enables the use of a FIDO U2F security key remotely, through a lightly-trusted proxy.

It is useful mainly to use as a second factor authentication for ssh and sudo-over-ssh. For example:

It is written in Go, with some C for PAM integration.

For how to install and use it, please see the installation instructions.


If you want to report bugs, send patches, or have any questions or comments, just let me know at