ASUS H81M-CT
2-25
The following item appears when Secure Boot is set to [Enabled].
Secure Boot Mode [Standard]
This is the Secure Boot mode selector. Setting this item to [Custom] allows for more exibility
in changing the Image Execution Policy and Secure Boot Key management. Conguration
options: [Enabled] [Disabled]
The following item appears when Secure Boot Mode is set to [Custom].
Key Management
This item appears only when you set OS Type to [Windows UEFI Mode]. It allows you
to manage the Secure Boot keys.
Install Default Secure Boot keys
Allows you to immediately load the default Security Boot keys, Platform key
(PK), Key‑exchange Key (KEK), Signature database (db), and Revoked
Signatures (dbx). When the default Secure boot keys are loaded, the PK
state will change from Unloaded mode to loaded mode.
Clear Secure Boot keys
This item appears only when you load the default Secure Boot keys. This
item allows you to clear all default Secure Boot keys.
Save Secure Boot Keys
Allows you to save the PK (Platform Keys) to a USB storage device.
PK Management
The Platform Key (PK) locks and secures the rmware from any non‑permissible
changes. The system veries the PK before your system enters the OS.
Delete PK
Allows you to delete the PK from your system. Once the PK is deleted, all
the system’s Secure Boot keys will not be active. Conguration options:
[Yes] [No]
Load PK from File
Allows you to load the downloaded PK from a USB storage device.
The PK le must be formatted as a UEFI variable structure with time‑based authenticated
variable.
KEK Management
The KEK (Key‑exchange Key or Key Enrollment Key) manages the Signature database
(db) and Revoked Signature database (dbx).
Key‑exchange Key (KEK) refers to Microsoft
®
Secure Boot Key‑Enrollment Key (KEK).
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