Avocent SwitchView(R)SC440 Manual do Utilizador descarregar pdf (Página 12)

5. ARCHITECTURAL INFORMATION

5.1 Logical Scope and Boundary

The TOE logical scope and boundary consists of the security functions/features

provided/controlled by the TOE.

The TOE provides the following security features:

 Data Separation (TSF_DSP)

 Security Management (TSF_MGT)

5.1.1 Data Separation (TSF_DSP)

The TOE implements the Data Separation Security Function Policy (SFP) as outlined in

Section 2 of Peripheral Sharing Switch (PSS) for Human Interface Devices Protection

Profile, Version 1.2, dated August 21, 2008. In operation, the TOE is not concerned with

the user information flowing between the shared peripherals and the switched computers.

It only provides a single logical connection between the shared peripheral group and the

one selected computer (TSF_DSP).

5.1.2 Security Management (TSF_MGT)

The TOE allows for the connected computers to be powered-up all-at-once or one at a

time. The first computer to be powered on will be the default selected computer until the

user selects another. To select or switch computers, the TOE provides port-specific

switches that allow the human user to explicitly determine to which computer the shared

set of peripherals is connected. This connection is visually displayed by a select LED

inside the selected channel button.

5.2 Physical Scope and Boundary

In its evaluated configuration, the TOE is connected to a set of human interface devices

and one or more computers. The human interface devices and computer(s) are not a part

of the TOE. The KVM Switch’s security design also ensures that only human interface

devices (HIDs) such as keyboards, trackballs, and mice will operate. This prevents

unauthorized USB data transfer to or from the connected computers by devices such as

USB flash drives, cameras, hard drives and alike. These devices will not function when

connected to the Rugged KVM Switch.

The Remote Controls under evaluation are: WIRED ASSY, KVM CONTROL PANEL

P/N 7432562 manufactured by Lockheed Martin, REMOTE SWITCH CONTROL P/N

100901 manufactured by Argon Corp., and REMOTE SWITCH CONTROL P/N 100429

manufactured by Argon.

For the TOE to meet an EAL4 assurance level in a Common Criteria evaluated

configuration, the selected remote control indicator light must never be dimmed so that it

is not visible to the user. The following figure depicts the TOE and its environment.

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