secure login without digital pathways box

[forsyth@plan9.cs.york.ac.uk forsyth@plan9.cs.york.ac.uk]

>>plaintext-password authentication option for
>>those who does not have SecureNet keys or use
>>reasonable firewalls.

if, like us, you are unwilling to reduce the level of
security the system offers -- we've got lots of potential ethernet snoopers --
an alternative is to provide a version of `netkey' on your unix systems,
with which to calculate the response to a plan 9 challenge.

this is a little trickier with this release since the
source for crypt has not been included for the usual
batty munitions act reasons.  i used one i prepared earlier,
but has anyone got a good plug compatible replacement that
can be placed somewhere outside the USA?  it might be
a nice touch to put it on whatever is kremvax these days.