# A Quantitative Research about Grin Privacy

**URL:** <https://forum.grin.mw/t/a-quantitative-research-about-grin-privacy/8577>\
**Category:** Development and Technical Discussion\
**Created:** [March 13, 2021, 8:19am UTC](https://forum.grin.mw/t/a-quantitative-research-about-grin-privacy/8577 "2021-03-13T08:19:13Z")\
**Posts on this page:** 1\
**Showing post:** 6

<div class="post-metadata">

**Author:** ![Anynomous](https://yyz2.discourse-cdn.com/flex036/user_avatar/forum.grin.mw/anynomous/32/2928_2.png) [@Anynomous](https://forum.grin.mw/u/Anynomous)\
**Post date:** [March 13, 2021, 4:34pm UTC](https://forum.grin.mw/t/a-quantitative-research-about-grin-privacy/8577/6 "2021-03-13T16:34:58Z")

</div>

> [@Gorfo](#):
>
> is that a common problem between all blockchains? AFAIK mempool is a necessity and all txs will have received time with them. Is it solvable with Dandelion? (and an extra question :D. Is it implemented in Grin?)

Yes, that is a common problem for all blockchains. Only way I can think of to solve that is by using 2nd layer technology such as lightning transactions. Regarding giving the user the power to withdraw when they want, this is already how it works for some mining pols like Grinmint, you request payout whenever you feel like. Dandelion was implemented in Grin AFAIK, but I have no idea how to use, I never tried 🙃

> [@Gorfo](#):
>
> I worry this is not achievable with a low or high tx traffic network (first one leak tx graph automatically and the second one takes away the power of doing on-chain transactions because of high costs for individuals, so I call it a short to mid term solution - Also Grin’s fix fee is a barrier to do it)

Yes, actually I am not perfectly happy with the base fee being so hight, although there are good security reasons why this was chosen. I do not see a solution here on the short term, just have to wait for lightning transactions to come. Also, personally, I find it acceptable that Grin is not 100% perfect in privacy. For me it is about the balance and trade-offs when it comes to minimalism, scalability, privacy…in which case Grin is a real winner since it has a great balance of all three, privacy at minimal costs. Tromp made this nice graph where these traits are compared with other privacy coins, unfortunately I cannot find it right now.

> [@Gorfo](#):
>
> How can this done? with Coin-swap?

Payjoins, this post explains it:

> [@One of the possible Grin paths](https://forum.grin.mw/t/one-of-the-possible-grin-paths/8364):
>
> I wanted to summarize some options I see for the future of Grin and hopefully hear your agreements/disagreements on this. As some of you have already noticed, there has been some new research done around privacy which proposes a way to do Coinswaps on Mimblewimble. We sometimes refer to this research as MWixnet because it is similar to mixnets. In case no critical flaw is found, this may open some interesting options that I’m going to discuss below. Let’s assume that every wallet sends newly r…

Nice benefit is that in addition to obfuscating directionality, the UTX0 set does not increase when the number of inputs and outputs of a transaction are the same, so it helps with scalability.

---

_[View the full topic](https://forum.grin.mw/t/a-quantitative-research-about-grin-privacy/8577)._
