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Intro/README.md
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@ -99,8 +99,13 @@ A common theme in TPMs is the use of digests, and hash extension digests
in particular, as a stand-in for large entities that cannot exist at
once on the TPM.
We'll discuss at least two such large entities: event logs, and
policies.
TPMs use digests as stand-ins for large entities of various types:
- eventlogs
- policies
- auditing
We'll discuss at least two of those: event logs, and policies.
## Platform Configuration Registers (PCRs)
@ -255,7 +260,8 @@ trees of keys below the primary key:
...
```
Note that every key has a parent or is a primary key.
Note that every key has a parent or is a primary key, and every key can
have zero, one, or more children.
There are three built-in hierarchies: