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4.1.3 Root of Trust for Detection (RTD) and Chain of Trust for Detection (CTD)

NIST platform security: roots of trust, firmware and secure enclaves SP 800-193
All changes in this version
first version loaded 4 Firmware Security Guidelines for Platform Devices part of 4.1

Title

Root of Trust for Detection (RTD) and Chain of Trust for Detection (CTD)

Control

1) Each platform device which implements a detection capability shall rely on either a Root of Trust for Detection (RTD), or a Chain of Trust for Detection (CTD) which is anchored by an RTD, for its detection. 2) The RTD or CTD shall include or have access to information necessary to detect corruption of firmware code and critical data. 3) Detection mechanisms anchored in the RTD shall provide the detection capabilities specified in Section 4.3 .

Note: This document provides minimum requirements for detection capabilities rooted in low-level hardware and firmware to provide resiliency against destructive attacks. However, nothing in this document should be construed as disallowing other detection capabilities that are outside this trust chain.