Building the Infrastructure for Cloud Security: A Solutions View

CHAPTER 4

Attestation: Proving Trustability

In the last few chapters we have looked at the first stages in a process toward establishing trust between systems. First, the establishment of roots of trust and the measured boot components; and second, the collection of evidence throughout the measurement process. We reviewed the different roots of trust in a compute platform—namely, the RTM, RTS, and RTR—and how the measured boot process (S-RTM and D-RTM) uses the RTM to measure and store the evidence in the RTS. The next stage in this process is the presentation of this evidence through attestation protocols and appraisal of the evidence that asserts ...