Enforce challenge to be non-zero #2
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Some challenges assume the existence of inverse. Doesn't really matter in practice I think but might as well fix it.
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I guess... it can't hurt. Merging. Thanks! |
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Some challenges assume the existence of inverse. This patch guarantees that any generated transcript challenges are non-zero so they have a field inverse.
Doesn't really matter in practice since the probability of this happening is exceedingly rare but might as well enforce it to prevent any undetermined behaviour.