On Friday, @HansWinderix @DistriNet will present our work on "Compiler-Assisted Hardening of Embedded Software Against Interrupt Latency Side-Channel Attacks" at @IEEEEUROSP. Key insight: To protect code on embedded TEEs against side-channel leakage, balancing secret- /1
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dependent branches can yield more efficient code than following the constant-time paradigm. We have implemented and evaluated this with an automated hardening pass in the #LLVM backend for #Sancus. The technique should also be applicable for, e.g., light-weight #ARM TEEs. /2

8:49 AM · Sep 7, 2021

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