New answers tagged side-channel-attack
1
For instance, when implemented in C, what are the chances that the compiler deobfuscate this into a branch?
At first glance, it sounds unlikely. For example, if you're worried about the compiler translating this as:
if (b) {
for(i=0;i<32;i++) r->v[i] = x->v[i];
}
well, that would be a valid transformation only if the optimizer could deduce ...
3
Generally speaking, there's not a way to mask the power of a circuit without dual-rail encoding. With dual rail encoding, you pass but $x$ and $\bar{x}$ so that have skew free, self-clocking circuits; however, an separate advantage is that you mask the power. Although this is used in asynchronous systems, it's fine in a synchronous system as well, and ...
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