SSH-SK-HELPER(1M) Maintenance Commands SSH-SK-HELPER(1M)

OpenSSH helper for FIDO authenticator support

ssh-sk-helper [-v]

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

ssh-sk-helper is not intended to be invoked by the user, but from ssh-agent(1).

A single option is supported:

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-agent(1) will automatically pass the -v flag to ssh-sk-helper when it has itself been placed in debug mode.

ssh(1), ssh-add(1), ssh-agent(1)

ssh-sk-helper first appeared in OpenBSD 6.7.

Damien Miller <>
December 21, 2019 OmniOS