ssh-sk-helper(8) — Linux manual page


SSH-SK-HELPER(8)         System Manager's Manual        SSH-SK-HELPER(8)

NAME         top

       ssh-sk-helper — OpenSSH helper for FIDO authenticator support

SYNOPSIS         top

       ssh-sk-helper [-v]

DESCRIPTION         top

       ssh-sk-helper is used by ssh(1), ssh-agent(1), and ssh-keygen(1)
       to access keys provided by a FIDO authenticator.

       ssh-sk-helper is not intended to be invoked directly by the user.

       A single option is supported:

       -v      Verbose mode.  Causes ssh-sk-helper to print debugging
               messages about its progress.  This is helpful in
               debugging problems.  Multiple -v options increase the
               verbosity.  The maximum is 3.

               Note that ssh(1), ssh-agent(1), and ssh-keygen(1) will
               automatically pass the -v flag to ssh-sk-helper when they
               have themselves been placed in debug mode.

SEE ALSO         top

       ssh(1), ssh-agent(1), ssh-keygen(1)

HISTORY         top

       ssh-sk-helper first appeared in OpenBSD 6.7.

AUTHORS         top

       Damien Miller <>

COLOPHON         top

       This page is part of the openssh (Portable OpenSSH) project.
       Information about the project can be found at  If you have a bug report
       for this manual page, see ⟨⟩.
       This page was obtained from the tarball openssh-9.7p1.tar.gz
       fetched from
       ⟨⟩ on
       2024-06-14.  If you discover any rendering problems in this HTML
       version of the page, or you believe there is a better or more up-
       to-date source for the page, or you have corrections or
       improvements to the information in this COLOPHON (which is not
       part of the original manual page), send a mail to

GNU                          April 29, 2022             SSH-SK-HELPER(8)