Random Sources

How many parties in a private protocol must be able to toss coins at all, as a resource separate from how many coins are tossed.

Status Problem Tags
– Sources vs Randomness Blowup
Conjecture 13 of the source. Its companion question – how many parties must be able to toss coins – is settled exactly by the same paper: \(t\) sources for deterministic functionalities, \(t+1\) for randomized ones, even though the adversary may corrupt all of them. What the count costs is not settled. Both halves of the \(\Theta\) are open. 5 open
Random SourcesRandomness Complexitytight-bound
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