Raw authentication material, pre-login. Login turns this into a Wisp; transports never do.
Constructors
AnonymousAn unauthenticated transport (e.g. a websocket on a trusted network); login policy decides what becomes of it.
RawKey StringA raw public key, textual form.
Principals [String]A CA certificate's principals, as verified by the transport.
Peer Int Int IntA unix-socket peer, as the kernel reports it: uid, gid, pid.