Asus PRIME Z270M-PLUS PRIME Z270M-PLUS Users manual ENGLISH - Page 70

Set New Key, Delete Key, Append Key, PK Management

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PK Management The Platform Key (PK) locks and secures the firmware from any non-permissible changes. The system verifies the PK before your system enters the OS. Set New Key This item allows you to load the downloaded PK from a USB storage device. The PK file must be formatted as a UEFI variable structure with time-based authenticated variable. Delete Key This item 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. Configuration options: [Yes] [No] 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). Set New Key Allows you to load the downloaded KEK from a USB storage device. Append Key Allows you to load the additional KEK from a storage device for an additional db and dbx loaded management. Delete Key Allows you to delete the KEK from your system. Configuration options: [Yes] [No] The KEK file must be formatted as a UEFI variable structure with time-based authenticated variable. DB Management The db (Authorized Signature database) lists the signers or images of UEFI applications, operating system loaders, and UEFI drivers that you can load on the single computer. Set New Key Allows you to load the downloaded db from a USB storage device. Append Key Allows you to load the additional db from a storage device so that more images can be loaded securely. Delete Key Allows you to delete the db file from your system. Configuration options: [Yes] [No] • The DB file must be formatted as a UEFI variable structure with time-based authenticated variable. • UEFI executable files include UEFI boot devices, drivers and applications. 2-46 Chapter 2: BIOS Information

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PK Management
The Platform Key (PK) locks and secures the firmware from any non‑permissible
changes. The system verifies the PK before your system enters the OS.
Set New Key
This item allows you to load the downloaded PK from a USB storage device.
The PK file must be formatted as a UEFI variable structure with time‑based authenticated
variable.
Delete Key
This item 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.
Configuration options: [Yes] [No]
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).
Set New Key
Allows you to load the downloaded KEK from a USB storage device.
Append Key
Allows you to load the additional KEK from a storage device for an additional db and
dbx loaded management.
Delete Key
Allows you to delete the KEK from your system. Configuration options: [Yes] [No]
The KEK file must be formatted as a UEFI variable structure with time‑based authenticated
variable.
DB Management
The db (Authorized Signature database) lists the signers or images of UEFI
applications, operating system loaders, and UEFI drivers that you can load on the
single computer.
Set New Key
Allows you to load the downloaded db from a USB storage device.
Append Key
Allows you to load the additional db from a storage device so that more images can
be loaded securely.
Delete Key
Allows you to delete the db file from your system.
Configuration options: [Yes] [No]
•
The DB file must be formatted as a UEFI variable structure with time‑based
authenticated variable.
•
UEFI executable files include UEFI boot devices, drivers and applications.
2‑46
Chapter 2: BIOS Information