# Daily Aggregator (Partial Transactions)

**URL:** <https://forum.grin.mw/t/daily-aggregator-partial-transactions/8260>\
**Category:** Research\
**Created:** [January 17, 2021, 11:25am UTC](https://forum.grin.mw/t/daily-aggregator-partial-transactions/8260 "2021-01-17T11:25:03Z")\
**Posts on this page:** 2\
**Page:** 2

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**Author:** ![vegycslol](https://yyz2.discourse-cdn.com/flex036/user_avatar/forum.grin.mw/vegycslol/32/3340_2.png) [@vegycslol](https://forum.grin.mw/u/vegycslol)\
**Post date:** [January 28, 2021, 9:24am UTC](https://forum.grin.mw/t/daily-aggregator-partial-transactions/8260/21 "2021-01-28T09:24:54Z")

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> [@oryhp](#):
>
> This could partly be battled by having Si (including Sn) not broadcast the correct excess if the anonymity set is too small

Si wouldn’t know the real anonymity set since Sn is the one verifying the inputs and dropping spam

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<div class="post-metadata">

**Author:** ![oryhp](https://yyz2.discourse-cdn.com/flex036/user_avatar/forum.grin.mw/oryhp/32/2923_2.png) [@oryhp](https://forum.grin.mw/u/oryhp)\
**Post date:** [January 28, 2021, 9:28am UTC](https://forum.grin.mw/t/daily-aggregator-partial-transactions/8260/22 "2021-01-28T09:28:25Z")

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Check the “b)” section in Tromp’s post. They can see the size of the subset. Though, s1 and sn can still be malicious and cooperate.

Perhaps it might be worth thinking in the direction of having anyone receive a pack of coinswap data (encryptions included) so that we randomize who gets the real output and input and form a circle S1 → S2 … Sn → S1 where they make two linear passes across the circle to collect all the valid coinswaps. But I have not thought about this yet

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