"non-echoed" characters are still echoed back in a null packet, as well
as pad passwords sent to not give hints to the length otherwise.
Obtained from: OpenBSD
new features description elided in favor of checking out their
website.
Important new FreeBSD-version stuff: PAM support has been worked
in, partially from the "Unix" OpenSSH version, and a lot due to the
work of Eivind Eklend, too.
This requires at least the following in pam.conf:
sshd auth sufficient pam_skey.so
sshd auth required pam_unix.so try_first_pass
sshd session required pam_permit.so
Parts by: Eivind Eklend <eivind@FreeBSD.org>