Table of Contents
Advertisement
Security Device Support
If this feature and the TPM jumper (JPT1) on the motherboard are both enabled, the onboard
security (TPM) device will be enabled in the BIOS to enhance data integrity and system
security. Please note that the OS will not show the security device. Neither TCG EFI protocol
nor INT1A interaction will be made available for use. If you have made changes on the setting
on this item, be sure to reboot the system for the change to take effect. The options are
Disable and Enable. If this option is set to Enable, the following screen and items will display:
•
Active PCR Banks
•
Available PCR Banks
SHA-1 PCR Bank
Select Enabled to enable SHA-1 PCR Bank support to enhance system security and data
integrity. The options are Enabled and Disabled.
SHA256 PCR Bank
Select Enabled to enable SHA256 PCR Bank support to enhance system security and data
integrity. The options are Enabled and Disabled.
Pending Operation
Use this feature to schedule a TPM-related operation to be performed by a security (TPM)
device at the next system boot to enhance system data integrity. Your system will reboot to
carry out a pending TPM operation. The options are None and TPM Clear.
Note: Your system will reboot to carry out a pending TPM operation.
Platform Hierarchy (for TPM Version 2.0 and above)
Select Enabled for TPM Platform Hierarchy support which will allow the manufacturer to utilize
the cryptographic algorithm to defi ne a constant key or a fi xed set of keys to be used for initial
system boot. These early boot codes are shipped with the platform and are included in the
list of "public keys". During system boot, the platform fi rmware uses the trusted public keys
to verify a digital signature in an attempt to manage and control the security of the platform
fi rmware used in a host system via a TPM device. The options are Enabled and Disabled.
Storage Hierarchy
Select Enabled for TPM Storage Hierarchy support that is intended to be used for non-privacy-
sensitive operations by the platform owner such as an IT professional or the end user. Storage
Hierarchy has an owner policy and an authorization value, both of which can be set and are
held constant (-rarely changed) through reboots. This hierarchy can be cleared or changed
independently of the other hierarchies. The options are Enabled and Disabled.
101
Chapter 4: UEFI BIOS
Advertisement
Table of Contents
