Test and refactor EvenY (renamed from PositiveY) #94
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Additional details and impacted files@@ Coverage Diff @@
## main #94 +/- ##
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Coverage 84.73% 84.73%
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Files 12 12
Lines 760 760
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Hits 644 644
Misses 116 116 |
change reexposed FROST functions to already ensure even Y keys
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Closes #74
While documenting and adding tests I realized that we can make it easier for the callers by making keys with even Y coordinates inside the wrapper FROST functions, so that users don't need to call
into_positive_y()manually. I left the trait pub in case they want to use frost-core directly for some reason and thus would need to convert manually.This required implementing EvenY for SecretShare, and since for it it's expensive to check if Y is even (it doesn't have the group public key, and needs to convert to KeyPackage), I added a
has_even_y()method to the trait and added a parameter tointo_even_y()to pass a previously computed evenness boolean.