writes "Zx-81 a prolific homebrew coder for the
PSP has released a port of Dropbear to the PSP
under the name PSPSSH: SSH2 Client for PSP : " Dropbear is a relatively
small SSH 2 server and client. It runs on a variety of POSIX-based platforms.
Dropbear is open source software, distributed under a MIT-style license. Dropbear
is particularly useful for "embedded"-type Linux (or other Unix) systems,
such as wireless routers. """