TPM Limitations Does not protect against dynamic attacks –Can't ensure software running unmodified Relies on chain of trust –Virtual machine verified by virtualization layer Implications –Can't know if control processes started correctly and haven't been modified –Can't know if data plane acting as instructed with QoS (SW - Data plane is in virtualization layer) (HW – Configuration goes through virtualization layer) –Confidentiality of data not addressed 14
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