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Table 2 TrustCAM PCR usage. Each of the PCRs 1 to 5 only stores the measurement of a single software component. PCR 6 contains the accumulated measurements of the computer vision blocks started by the NodeManager.

From: Securing Embedded Smart Cameras with Trusted Computing

PCR Measurement Measured by
1 X-Loader OMAP ROM code (ideal model only)
2 U-Boot X-Loader
3 Linux Kernel U-Boot
4 Kernel Parameters U-Boot
5 Root Filesystem U-Boot
6 vision processing blocks NodeManager