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Chapter 6: UEFI BIOS
Authorized TimeStamps
Set New Key
Select Yes to load the DBT from the manufacturer's defaults. Select No to load the DBT
from a file. The options are Yes and No.
Append Key
Select Yes to add the DBT from the manufacturer's defaults list to the existing DBT. Select
No to load the DBT from a file. The options are Yes and No.
OsRecovery Signature
This item uploads and installs an OSRecovery Signature. You may select options for
Update for a factory default key, or select Append to get it from a file. The file formats
accepted are:
1) Public Key Certificate
a. EFI Signature List
b. EFI CERT X509 (DER Encoded)
c. EFI CERT RSA2048 (bin)
d. EFI SERT SHA256 (bin)
2) EFI Time Based Authenticated Variable
When prompted, select "Yes" to load Factory Defaults or "No' to load from a file.
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