Dell PowerEdge T430 Dell PowerEdge T430 Owners Manual - Page 42

Secure Boot Custom Policy Settings screen

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Menu Item Intel TXT Power Button NMI Button AC Power Recovery AC Power Recovery Delay User Defined Delay (60s to 240s) UEFI Variable Access Secure Boot Secure Boot Policy Secure Boot Policy Summary Description Enables or disables the Intel Trusted Execution Technology (TXT). To enable Intel TXT, Virtualization Technology must be enabled and TPM Security must be Enabled with Pre-boot measurements. By default, the Intel TXT option is set to Off Enables or disables the power button on the front of the system. By default, the Power Button option is set to Enabled. Enables or disables the NMI button on the front of the system. By default, the NMI Button option is set to Disabled. Sets how the system reacts after AC power is restored to the system. By default, the AC Power Recovery option is set to Last. Sets how the system supports staggering of power up after AC power is restored to the system. By default, the AC Power Recovery Delay option is set to Immediate. Sets the User Defined Delay when the User Defined option for AC Power Recovery Delay is selected. Provides varying degrees of securing UEFI variables. When set to Standard (the default) UEFI variables are accessible in the Operating System per the UEFI specification. When set to Controlled, selected UEFI variables are protected in the environment and new UEFI boot entries are forced to be at the end of the current boot order. Enables Secure Boot, where the BIOS authenticates each pre-boot image using the certificates in the Secure Boot Policy. Secure Boot is disabled by default. When Secure Boot policy is Standard, the BIOS uses the system manufacturer's key and certificates to authenticate pre-boot images. When Secure Boot policy is Custom, the BIOS uses the user-defined key and certificates. Secure Boot policy is Standard by default. Displays the list of certificates and hashes that secure boot uses to authenticate images. Secure Boot Custom Policy Settings screen Secure Boot Custom Policy Settings is displayed only when Secure Boot Policy is set to Custom. In the System Setup Main Menu, click System BIOS → System Security → Secure Boot Custom Policy Settings. Menu Item Description Platform Key Imports, exports, deletes, or restores the platform key (PK). Key Exchange Key Database Allows you to import, export, delete, or restore entries in the Key Exchange Key (KEK) Database. Authorized Signature Database Imports, exports, deletes, or restores entries in the Authorized Signature Database (db). Forbidden Signature Database Imports, exports, deletes, or restores entries in the Forbidden Signature Database (dbx). 42

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Menu Item
Description
Intel TXT
Enables or disables the Intel Trusted Execution Technology (TXT). To
enable
Intel TXT
, Virtualization Technology must be enabled and TPM
Security must be
Enabled
with Pre-boot measurements. By default, the
Intel TXT
option is set to
Off
Power Button
Enables or disables the power button on the front of the system. By
default, the
Power Button
option is set to
Enabled
.
NMI Button
Enables or disables the NMI button on the front of the system. By default,
the
NMI Button
option is set to
Disabled
.
AC Power Recovery
Sets how the system reacts after AC power is restored to the system. By
default, the
AC Power Recovery
option is set to
Last
.
AC Power Recovery Delay
Sets how the system supports staggering of power up after AC power is
restored to the system. By default, the
AC Power Recovery Delay
option
is set to
Immediate
.
User Defined Delay (60s to
240s)
Sets the
User Defined Delay
when the
User Defined
option for
AC Power
Recovery Delay
is selected.
UEFI Variable Access
Provides varying degrees of securing UEFI variables. When set to
Standard
(the default) UEFI variables are accessible in the Operating
System per the UEFI specification. When set to
Controlled
, selected UEFI
variables are protected in the environment and new UEFI boot entries are
forced to be at the end of the current boot order.
Secure Boot
Enables Secure Boot, where the BIOS authenticates each pre-boot image
using the certificates in the Secure Boot Policy. Secure Boot is disabled
by default.
Secure Boot Policy
When Secure Boot policy is
Standard
, the BIOS uses the system
manufacturer’s key and certificates to authenticate pre-boot images.
When Secure Boot policy is
Custom
, the BIOS uses the user-defined key
and certificates. Secure Boot policy is
Standard
by default.
Secure Boot Policy
Summary
Displays the list of certificates and hashes that secure boot uses to
authenticate images.
Secure Boot Custom Policy Settings screen
Secure Boot Custom Policy Settings is displayed only when
Secure Boot Policy
is set to
Custom
.
In the
System Setup Main Menu
, click
System BIOS
→
System Security
→
Secure Boot Custom Policy
Settings
.
Menu Item
Description
Platform Key
Imports, exports, deletes, or restores the platform
key (PK).
Key Exchange Key Database
Allows you to import, export, delete, or restore
entries in the Key Exchange Key (KEK) Database.
Authorized Signature Database
Imports, exports, deletes, or restores entries in the
Authorized Signature Database (db).
Forbidden Signature Database
Imports, exports, deletes, or restores entries in the
Forbidden Signature Database (dbx).
42