Asus B85M-G E9884 User Manual download pdf (Page 70)

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Chapter 2: Getting started

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).

Delete the KEK

Allows you to delete the KEK from your system. Conguration options:

[Yes] [No]

Load KEK from File

Allows you to load the downloaded KEK from a USB storage device.

Append KEK from file

Allows you to load the additional KEK from a storage device for an

additional db and dbx loaded management.

The KEK le 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.

Delete the db

Allows you to delete the db le from your system. Conguration options:

[Yes] [No]

Load db from File

Allows you to load the downloaded db from a USB storage device.

Append db from file

Allows you to load the additional db from a storage device so that more

images can be loaded securely.

The DB le must be formatted as a UEFI variable structure with time‑based authenticated

variable.

DBX Management

The dbx (Revoked Signature database) lists the forbidden images of db items that are

no longer trusted and cannot be loaded.

Delete the DBX

Allows you to delete the DBX le from your system. Conguration options:

[Yes] [No]

Load DBX from File

Allows you to load the downloaded DBX from a USB storage device.

Append DBX from file

Allows you to load the additional DBX from a storage device so that more

db’s images cannot be loaded.

The DBX le must be formatted as a UEFI variable structure with time‑based authenticated

variable.

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Asus B85M-G E9884 User Manual Page 70

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