This isssue has been fixed in the Debian hurd / libc0.3 packages as of 2010-11. Retire this item sometime after 2011.

Privilege seperation does not work with Hurd currently. You need to explicitely set PrivilegeSeparation to no in /etc/ssh/sshd_options, just commenting out the entry will not work as it is on by default. Also make sure you have /dev/random, see below.