Appendix F: Secure Boot Settings
231
Authorized TimeStamps
Authorized Timestamp Database (DBT) is used to issue and check signed time stamp
certicates. The options are Details, Export, Update, Append, and Delete. Select Details
to display detailed information of Authorized Timestamps. Select Export to save the cur-
rent DBT to a FAT formatted USB ash drive. Select Update to load the factory defaults
or load DBT from a le on the external device. Select Append to add variables to the
existing DBT. Select Delete to clear the current DBT or to delete only one certicate from
the key database. (Refer to page 221 for the Export process. Refer to pages 222,
223, 224, and 225 for the Update process. Refer to pages 226 and 227 for the
Append process. Refer to page 228 for the Delete process.)