ADDER ADDERView Secure Manual

ADDERView Secure
USB, dual link DVI-I and audio KVM switch for environments
where security must be guaranteed
PRODUCT IN BRIEF
The AdderView Secure enables a
keyboard, monitor and mouse to be
shared between high and low security
systems, sometimes known as red and
black networks, and is designed care-
fully to prevent information flowing
between computers or to the outside
world via emissions snooping. The Ad-
derView Secure design prevents sensi-
tive data from leaking between ports,
sensitive data leaking to the outside
world and sensitive data from being
stored in the device. Furthermore,
the switch actively combat a range of
potential leakage "threats".
FEATURES
Uni-directional data paths for keyboard
and mouse
One-way data paths ensure that data
isolation does not rely on trusting
microprocessor software, but is instead
assured by hardware and prevents a
hidden software weaknesses that could
potentially cause data leakage. A uni-
directional structure also protects against
timing analysis or forced malfunction
attacks and prevents computers
influencing the operation of any common
circuitry.
Minimal emissions profile
The AdderView Secure is heavily shielded
with double shielding in critical areas
to minimise the risk of eavesdropping
equipment being able to pick up signals
from the equipment.
No shared RAM between ports
The keyboard and mouse processor
is powered down and reset at each
switchover to thwart shared RAM
leakages. Separate memories hold the
num, caps and scroll states and are only
accessible when the relevant channel
is selected. All data buffers are actively
cleared once they have been used.
One time programmable microprocessors
Microprocessors are one time
programmable and don't contain
reprogrammable flash memory. This
protects against sensitive data being
stored within the device and protects the
software against being corrupted.
Ultra secure KVM
High density, small form factor
ultra secure KVM
60dB crosstalk isolation
High crosstalk isolation ensures that
less than 1/1000th of any signal from
one computer is presented to the input
of another computer due to electrical
crosstalk.
Restricted USB function
The USB ports will only support
keyboards and mice and other devices,
such as USB storage drives, are actively
prohibited.
No microphone connections
To prevent small levels of crosstalk noise
from being "recorded", microphone
connections are banned from the design.
Independent power supplies block power
line signalling
The circuitry for each port is
independently powered from the USB
lead. Power line signaling is therefore
blocked because different port circuits
don't share the same power feed.
AdderView Secure checks its own
operation
The hardware and software must agree
before data flow is enabled. The switch
constantly checks its own operation and
will stop operating and flash its error light
if an unanticipated event occurs.
Maximum compatibility
For maximum compatibility and security
USB keyboard/mouse and dual link DVI-I
monitor interfaces are used and this...
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