Chapter 6: BIOS
81
Forbidden Signatures
Set New
Select Yes to load the DBX from the manufacturer's defaults. Select No to load the DBX
Append
Select Yes to add the DBX from the manufacturer's defaults to the existing DBX. Select
Authorized TimeStamps
Set New
Select Yes to load the DBT from the manufacturer's defaults. Select No to load the DBT
Append
Select Yes to add the DBT from the manufacturer's defaults list to the existing DBT. Select
OsRecovery Signature
This item uploads and installs an OSRecovery Signature. You may insert a factory default
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