Belkin®
Secure
DVI
KVM
Switch,
Secure
KM
Switch
and
Secure
Windowing
KVM
EAL
4
augmented
ALC_FLR.3
Security
Target
Rev.
1.01
Page
|
35
O.SWITCH
All
DEVICES
in
a
SHARED
PERIPHERAL
GROUP
shall
be
CONNECTED
to
at
most
one
SWITCHED
COMPUTER
at
a
time.
embedded
microprocessors
or
microcontrollers,
significant
amounts
of
information
may
be
transferred
from
one
COMPUTER
system
to
another,
resulting
in
compromise
of
sensitive
information.
An
example
of
this
is
transfer
via
the
buffering
mechanism
in
many
KEYBOARDS.
Further,
the
purpose
of
the
TOE
is
to
share
a
set
of
PERIPHERALS
among
multiple
COMPUTERS.
Information
transferred
to/from
one
SWITCHED
COMPUTER
is
not
to
be
shared
with
any
other
COMPUTER
O.SWITCH
The
purpose
of
the
TOE
is
to
share
a
set
of
PERIPHERALS
among
multiple
COMPUTERS.
It
makes
no
sense
to
have,
for
example,
video
CONNECTED
to
one
COMPUTER
while
a
POINTING
DEVICE
is
CONNECTED
to
another
COMPUTER.
Still
TOE
may
enable
User
Authentication
Device
switched
to
another
COMPUTER
to
maintain
user
authentication
session.
O.UNIDIR
This
objective
mitigates
the
threat
of
unauthorized
information
transfer
by
providing
assurance
through
hardware
design
that
data
may
only
flow
from
a
PERPHERAL
DEVICE
to
a
COMPUTER
preventing
the
possibility
that
the
TOE
will
loop
data
from
one
COMPUTER
to
another
even
if
the
microcontroller
in
the
TOE
has
