Chapter 4: UEFI BIOS
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Key Exchange Keys (KEK)
Select Update to load the KEK from the manufacturer's defaults. Select Append to add
the KEK from the manufacturer's defaults list to the existing KEK. The options are Details,
Export, Update, Append, and Delete.
Authorized Signatures
Authorized Signature Database (DB) contains authorized signing certicates and digital
signatures. Select Update to load the DB from the manufacturer's defaults. Select Append
to add the database from the manufacturer's defaults to the existing DB. The options are
Details, Export, Update, Append, and Delete.
Forbidden Signatures
Forbidden Signature Database (DBX) contains forbidden certicates and digital signa-
tures. Select Update to load the DBX from the manufacturer's defaults. Select Append
to add the DBX from the manufacturer's defaults to the existing DBX. The options are
Details, Export, Update, Append, and Delete.
Authorized TimeStamps
Select Update to load the Authorized Timestamp Database (DBT) from the manufacturer's
defaults. Select Append to add the DBT from the manufacturer's defaults list to the exist-
ing DBT. The options are Details, Export, Update, Append, and Delete.
OsRecovery Signatures
Select Update to load the OsRecovery Signatures Database (DBR) from the manufac-
turer's defaults. Select Append to add the DBR from the manufacturer's defaults list to
the existing DBR. The options are Details, Export, Update, Append, and Delete.
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General
Weight and Dimensions
