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base repository: google/differential-privacy
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  • 1 commit
  • 6 files changed
  • 1 contributor

Commits on Jul 27, 2021

  1. Fix a rare privacy bug in DistinctPerKey in Privacy on Beam. (#84) 

    The bug occurred when there are outlier users in the input that
contribute to many partitions and/or to many values AND the
values contributed are the same as values from other users (the second
part is critical, if the contributed values only come from a single user
then the bug does not occur). Then, the output might not have be DP due
to incorrect contribution bounding. See the comments in the newly added
tests for concrete examples of when/how the bug used to occur.

This is cherry-picked from the main branch commit
e149618.

This commit includes a minor change compared to the one on the main
branch: It removes the error output for kv.Codec.Encode/Decode
functions used in aggregations.go since the error output for these
functions weren't implemented in v1.0.0.
    @miracvbasaran
    miracvbasaran authored Jul 27, 2021
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    4d91d7c View commit details
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