[Haskell-cafe] Tor project

[Luke Clifton]

> Well, how about something like
>
> inConstantTime :: timeBudget -> (functionToPerform :: CryptoResult) -> IO
> (Maybe CryptoResult)


I'm no expert, but aren't timing attacks also possible with something like
that. If your `functionToPerform' touches the cache in funny ways, the
program after resuming from the timeout might have different timings as
there could be cache misses in one scenario, but not the other.
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