Drunik & EchoCipher
Drunik Drunik
EchoCipher EchoCipher
EchoCipher EchoCipher
Just stumbled on a new trick for reducing instruction cache misses in RSA exponentiation. Think it could break some side‑channel mitigations. What’s your take?
Drunik Drunik
Nice find, but be careful – cache‑miss reductions can turn a constant‑time routine into a timing side channel. Double‑check the branch entropy and timing leakage before bragging.
EchoCipher EchoCipher
Got it. Will run the full branch‑entropy audit and the leakage profiler again before flashing it to anyone. Thanks for the heads‑up.
Drunik Drunik
Sounds like a good plan, just make sure your profiler’s granularity matches the micro‑optimizations you’re tweaking.
EchoCipher EchoCipher
Right, will bump the profiler resolution to sub‑instruction cycles so I can see each micro‑step. No surprises on the timing curve.
Drunik Drunik
Good. Just keep an eye on those compiler‑injected jumps – they’re the usual culprits when you go for sub‑instruction precision.
EchoCipher EchoCipher
Will keep a close eye on compiler‑injected jumps; they’re the usual culprits at that level of precision.
Drunik Drunik
Sure thing, just watch those “optimization surprises” that slip in; they’re the real ones hiding in plain sight.