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Differential Privacy Cleanups #2122

Merged
merged 2 commits into from
Oct 13, 2023
Merged

Differential Privacy Cleanups #2122

merged 2 commits into from
Oct 13, 2023

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divergentdave
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This cleans up a couple items as a follow-up to #1892. First, we close #1658 by removing the 64-bit variant of Prio3FixedPointBoundedL2VecSum. Due to length constraints, this could only be used on vectors with maximum dimension of three. Lower-precision variants will be more practically useful. Second, I removed the DP strategy generic type parameter from compute_aggregate_share(), and relaxed the bound on the VDAF type parameter from AggregatorWithNoise to Aggregator. This simplifies callsites and gets rid of some extra monomorphizations.

@divergentdave divergentdave requested a review from a team as a code owner October 13, 2023 16:16
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LGTM, provided losing the 64bit variant doesn't break @ooovi and @MxmUrw

@MxmUrw
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MxmUrw commented Oct 13, 2023

LGTM, provided losing the 64bit variant doesn't break @ooovi and @MxmUrw

Yes, 64bit isn't needed for realistic use cases. Fine with us.

@divergentdave divergentdave merged commit fc48112 into main Oct 13, 2023
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@divergentdave divergentdave deleted the david/dp-cleanups branch October 13, 2023 19:34
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Remove Prio3FixedPoint64BitBoundedL2VecSum
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