Maintenance
As mentioned previously, the maintenance process is similar to the TCPA_MS_MIGRATE method of the migration process. Differences arise because maintenance is dedicated to the transfer of the SRK between platforms, with the cooperation of a platform manufacturer. Remember that maintenance mechanisms are optional in a TPM implementation.
The first difference is that the maintenance process can be disabled by the TPM owner for the entire period of ownership by that owner by executing the TPM_KillMaintenance capability. A TPM owner may want to use the kill maintenance capability to ensure that non-migratable TPM key objects are never available to any platform's TPM other than the one on which they were created. KillMaintenance permanently ...
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