easy:SetOpt_SSH_Auth_Types(bitmask)
#CURLSSH_AUTH_PUBLICKEY, #CURLSSH_AUTH_PASSWORD, #CURLSSH_AUTH_HOST,
#CURLSSH_AUTH_KEYBOARD and #CURLSSH_AUTH_AGENT.
Set #CURLSSH_AUTH_ANY to let libcurl pick a suitable one. Currently
#CURLSSH_AUTH_HOST has no effect. If #CURLSSH_AUTH_AGENT is used, libcurl
attempts to connect to ssh-agent or pageant and let the agent attempt the
authentication.