Spec: Pad the payload with null contributions #1030
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Resolves #352. See also related spec change for the Private Aggregation API: patcg-individual-drafts/private-aggregation-api#98
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Adds null contributions, i.e. contributions with zero value, to report payloads when serializing to ensure that the number of contributions is fixed (according to the calling API's request). This prevents the size of the encrypted payload from leaking any information about the number of contributions. This functionality is guarded behind a disabled-by-default feature and will be enabled in a separate cl. In that cl, we will update the golden report tests. See the corresponding spec changes here: WICG/attribution-reporting-api#1030 and patcg-individual-drafts/private-aggregation-api#98 Bug: 1478353 Change-Id: Ie967bbdbc6c4d9a908774a7c54ae5701c6e3d5bd Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/4887591 Commit-Queue: Alex Turner <[email protected]> Reviewed-by: Nan Lin <[email protected]> Cr-Commit-Position: refs/heads/main@{#1202742}
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Resolves #352.
See also the related spec change for the Private Aggregation API: patcg-individual-drafts/private-aggregation-api#98. See also the corresponding ARA explainer change: #1031.
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