Micro-Architecture Support for Integrity Measurement on Dynamic Instruction Trace

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Provided by: University of Idaho
Topic: Security
Format: PDF
Trusted computing allows attesting remote system's trustworthiness based on the software stack whose integrity has been measured. However, attacker can corrupt system as well as measurement operation. As a result, nearly all integrity measurement mechanism suffers from the fact that what is measured may not be same as what is executed. To solve this problem, a novel integrity measurement called Dynamic instruction Trace measurement (DiT) is proposed. For DiT, processor's instruction cache is modified to stores back instructions to memory. Consequently, it is designed as a assistance to existing integrity measurement by including dynamic instructions trace.
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