sshkey scans the file system on remote agents for SSH keys, and where
identified returns fingerprints for the keys.
Where private keys and public keys are identified, fingerprints will be
returned for these keys if possible.
The module also identifies authorized_keys files, and returns the
fingerprints of any public keys present in the authorized_keys file,
allowing correlation between identified public/private fingerprints and
the hosts the keys have access to.
Aaron Meihm