The Concepts of Migration and Maintenance
This section compares migration with maintenance mechanisms. Note that neither maintenance nor migration mechanisms require PCR values to be checked before performing maintenance or migration operations of sealed TPM protected objects.
Migration Mechanisms
Migration mechanisms are for backup or cloning of migratable TPM protected key objects. The TCPA-defined migration mechanisms construct additional data objects that enable just the private keys in a TPM protected key object to be attached to other Protected Storage trees. TCPA does not specify migration operations on the corresponding public keys because they are not security sensitive. Thus, the final TCPA_KEY structures must be prepared by migration ...
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