Hardware-Assisted Program Execution Integrity: HAPEI
Résumé
Even if a software is proven sound and secure, an attacker can still insert vulnerabilities with fault attacks. In this paper, we propose HAPEI, an Instruction Set Randomization scheme to guarantee Program Execution Integrity even in the presence of hardware fault injection. In particular, we propose a new solution to the multi-predecessors problem. This scheme is then implemented as a hardened CHIP-8 virtual machine, able to ensure program execution integrity, to prove the viability and to explore the limits of HAPEI.
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