Page 106 - slides.dvi

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⇒
•
•
•
•
•
•
•
•
But,
User
or
so
Operating
but
Partial
local
must
make
Anyway,
always
talking
today
carry
Systems
wants
use
talking
still
to
do
—
login
to
a
workstation
wiretapping
solution
to
PCs
your
hardware
the
software
is
in
have
/
can
the
Protection
Authentication
avoid
own
used
may
old
the
easy
of
encryption
wrong
terminal
character
as
often
right
of
copy
have
days
firmware
see
of
same
in
for
problem
all
some
been
as
the
of
attention
terminals
computer
System
computer,
public
⇒
kind,
to
directly
packets
but
before
comms
changed
terminal
terminal
and
on
not
wired
User
machine
trying
lines:
trust
the
may
program
network
attention,
login
login
or
terminals:
have
encryption
been
program
device
:-)
(e.g.
modified
a
smart
card)
102