Security Target
Version 1.1
2022-03-08
29
5.2.5.7
TSF Testing (FPT_TST_EXT.1)
FPT_TST_EXT.1.1
The TSF
shall respond to a self‐test failure by providing users with a [
visual
]
indication of failure and by shutdown of normal TSF functions.
5.2.6
TOE Access (FTA)
5.2.6.1
Continuous Indications (FTA_CIN_EXT.1)
FTA_CIN_EXT.1.1
The TSF shall display a visible indication of the selected computers at all times
when the TOE is powered.
FTA_CIN_EXT.1.2
2
The TSF shall implement the visible indication using the following mechanism:
easily visible graphical and/or textual markings of each source video on the
display, [
a button,
a panel with lights
].
Application Note:
The refined text
: “
easily visible graphical and/or textual markings of each
source video on the display”,
is added per the Video/Display Devices Module.
Application Note:
The selected computer is indicated with a panel with lights that corresponds to
the computer selection buttons. The CAC function of each port can be enabled or
disabled for a particular computer. The CAC LED lights bright green to indicate
that the CAC function is enabled for that corresponding port. Each port has its
own Port LED and CAC LED.
FTA_CIN_EXT.1.3
The TSF shall ensure that while the TOE is powered the current switching status
is reflected by [
multiple indicators which never display conflicting information
].
Application Note:
As indicated in FTA_CIN_EXT.1.2, the TOE has a light panel that shows the selected
computer and whether the CAC port for the computer is enabled. There is no
situation in which the selected computer will be indicated with the light panel and
a different computer will be indicated with the selection button.
5.3
TOE Security Functional Requirements (DP Models)
The following table identifies the [MOD_VI_V1.0] SFRs that are satisfied by DP Models, which include
the following:
•
CS1182DP4C,
•
CS1184DP4C,
•
CS1188DP4C,
•
CS1142DP4C,
2
TD0539 clarifies that the mandatory selection (refined by the VI-Module) applies if the TOE fits the
Combiner Use Case selecting “multiple connected displays” in FDP_CDS_EXT.1.1.
The TOE does not fit
the Combiner User Case but rather selects
“multiple connected displays”
because some models support
dual-displays from a single source video feed. Therefore, the selection does not apply.
