DETON: DEfeating hardware Trojan horses in microprocessors through software ObfuscatioN

Hardware Trojan Horses (HTHs) represent today a serious issue not only for academy but also industry because of the dramatic complexity and dangerousness attackers can count on. It has been shown that HTHs be inserted in modern complex microprocessors allowing attacker to run malicious software, acquire root privileges steal secret user information. In this paper we propose DETON, an automatic methodology software manipulation aimed at introducing obfuscation programs’ execution protect microprocessor-based systems against information stealing HTHs. The high-level goal DETON is produce obfuscated version program under protection order allow trusted over (possibly) untrusted CPU-based system. will then one actually executed on target hardware platform. fully integrated classical design flow since it takes output compiler, i.e., assembly code protected, produces modified which turn compatible with underlying HW aims (i) reducing amount sensitive exposed by spreading through microprocessor’s registers submerging among garbage information, (ii) time scrambling data registers. We present set guidelines, requirements metrics driving assessing always-on information-stealing framework. assessed Ariane 64 bit RISC-V microprocessor running real-world benchmark programs embedded systems.