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An Interposer-Based Root of Trust: Seize the Opportunity for Secure System-Level Integration of Untrusted Chiplets
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Leveraging 2.5D interposer technology, we advocate the integration of untrusted commodity components/chiplets with physically separate, entrusted logic components. Such organization provides a modern root of trust for secure system-level integration. We showcase our scheme by utilizing industrial ARM components that are interconnected via a security-providing active interposer, and thoroughly evaluate the achievable security via different threat scenarios. Finally, we provide detailed end-to-end physical design results to demonstrate the efficacy of our proposed methodology.
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Cited by 1 Pith paper
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2.5D Root of Trust: Securing the Chiplet Ecosystem
Proposes embedding transaction monitors and coherence checkers in a trusted silicon interposer to secure 2.5D chiplet systems against interconnect, coherence, and side-channel attacks without modifying untrusted chiplets.
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