Questions tagged [ringsize]

The ring size is the number of one-time public keys (outputs) in the ring-signature that authorizes the transaction. One of those belongs to the actual sender, while the remaining ones (foreign outputs) are used for obfuscation and any existing output found on the blockchain can be picked. This achieves plausible deniability in that any given input in a transaction could have come from any of the outputs used in the ring signature.

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19
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3answers
276 views

How will the temporal output alignment of ring partners (mixins) be addressed?

The Issue: If you only own outputs in a short span of blocks and you spend them, the mixin partners (the fake outputs / ring partners) will be different for each of the outputs and have a blockchain ...
14
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4answers
2k views

What would be the minimum mixin for full privacy?

How much privacy does the default (I think it's 4) give? If not enough, how high a mixin is enough?
12
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1answer
237 views

If I send two transactions to the same recipient, can they infer the true sender?

I send two transactions to the same recipient. The two sets of mixins used to generate the transactions would each include my public address. Is the recipient then able to reasonably infer that my ...
12
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3answers
11k views

What is a mixin, and how does it work?

What actually is a mixin, and how does it work? Is it similar to mixing services that Bitcoin and DASH provide?
10
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2answers
174 views

What factors are influenced by ring size selection?

What factors are influenced by the ring size (mixin) selection? Does choosing a higher mixin always lead to better privacy? Does choosing a very high mixin contribute to blockchain bloat? How does ...
10
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2answers
321 views

What is the difference between mixin and ringsize?

The community recently changed from using the term mixin for ring signatures to using ringsize. Are these terms used interchangeably, or are there some differences between these two terms?
9
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3answers
629 views

Is there a minimum and maximum mixin size?

Assuming at least some users do not care about privacy, why is there a need for a minimum mixin size? Is there a maximum mixin size? If my goal is to maximize privacy are there any reasons why I ...
9
votes
2answers
269 views

Monero mixin 0 versus Zcash “T” address transaction

How does the privacy of a Zcash "T" address transaction compare with a Monero mixin 0 transaction (back when they were available)? Does 'T" stand for transparent? Would it be technically possible ...
9
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1answer
584 views

Aeon minimum mixin

Aeon does not have a mandatory minimum mixin like Monero does. Despite the feature being relatively easy to add, there is no mention of doing so in the current development roadmap. What advantages ...
8
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2answers
202 views

Usage of a zero mixin (ring size =1)

Zero mixin (ring size=1) transactions are no longer allowed (except for sweeping dust). When they were allowed before the March 2016 hard fork they were quite common. Is there evidence to support ...
8
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1answer
187 views

Mixin 0 (mixin 1) transaction ban

Does the network still accept mixin 0/1 transactions? Did Poloniex update their transactions to use a higher mixin?
8
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1answer
213 views

What is the technical definition of “dust” that is allowed to be sent with a mixin of 0?

What is the technical definition of "dust" that is allowed to be sent with a mixin of 0? Is there any way I can avoid or reduce dust creation?
8
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1answer
57 views

Is there a way to search the blockchain by mixin?

Is there a tool that I can use to search the blockchain for transactions sorted by number of mixins? For example if I wanted to find all transactions with exactly 10 mixins how would I do it?
7
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3answers
773 views

Why are there so many different amounts received when receiving a payment?

Do the amounts received correlate to the mixin level when sent?
7
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2answers
150 views

When will the mandatory minimum mixin be increased?

Currently a minimum mixin of 2 is mandatory. It is my understanding that the mandatory minimum mixin will be increased to 4 at some point. When will that happen?
7
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1answer
447 views

What effect has the increase of minimal ring size from 5 to 7?

How will the scheduled increase of ring size in the current hard fork v7 affect security/privacy, transaction size/fees and verification time? Is there a reason why exactly 7 and not 10 or maybe 20?
7
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1answer
275 views

Should I worry about dust in my wallet?

MRL-0004 talks about how if I get sent a weird amount of XMR like 103.32111111, I'll have a weird output of .00111111 in my wallet, and assuming there will be no other outputs of the same amount in ...
7
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1answer
184 views

How will RingCT dust work?

Right now, if you have a small piece of Monero, you can spend it with mixin 0. That way, you can collect a bunch of them without paying too high of fees. RingCT will hide amounts, meaning it won't be ...
7
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2answers
2k views

How to use the sweep_all command with options like ring_size or priority

could you please tell me how to use this exactly? For example I want to sweep_all a wallet with low <priority> (in the GUI that would be x.25 I guess) to another address with default <...
7
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2answers
442 views

How are the other inputs chosen with MyMonero?

Riccardo Spagni said in an interview somewhere (I will edit this if I find the right one) that MyMonero uses a different input selection algorithm than the official CLI and GUI wallets. How are the ...
7
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1answer
44 views

Are there protocol-level incentives regarding mix-in selection?

If I'm not mistaken, the current wallet randomly selects outputs for mix-in from the TXO set using a certain probability density function. Is this behaviour somehow supported by protocol-level ...
6
votes
3answers
113 views

Why does proposed transaction fee fluctuate heavily sometimes?

I have enabled the always-confirm-transfers feature for my wallet, just to see the proposed transaction fee before I confirm the transaction. I have noticed that it sometimes fluctuates quite heavily ...
6
votes
1answer
749 views

Largest ring size ever used in a Monero transacation

What is the largest ring size ever used in a Monero transaction? What was the size of that transaction in kB? Please share the transaction ID if available
6
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2answers
2k views

What changes are planned for the September 2017 hard fork?

I am having trouble finding information about which of the following will be included in the September 2017 hard fork: Fluffy blocks Minimum / uniform ringsize ZMQ (Zero MQ) ? Is there a reliable ...
6
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2answers
239 views

What is the purpose of enforcing a minimum mixin?

Each person can choose a mixin as high as they like when sending Monero. For those that receive Monero solely from mining (never accepting Monero payments) is there any reason why a minimum mixin ...
6
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1answer
272 views

How do you calculate the size of a Monero transaction before it is sent?

Given the number of inputs, number of outputs, and mixin count, what is the formula to calculate the expected size (in bytes) of the resulting Monero transaction? For comparison's sake, in Bitcoin, ...
6
votes
1answer
243 views

Is there a minimum effective mixin?

I understand that as of the last hard fork, the minimum mixin has been changed from 0 to 2. However, is this an effective baseline? Or is there a higher selection that users can or should choose that ...
6
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1answer
108 views

Is there a tool that tells me if my transfer has been used by others in a ring signature?

Is there a tool that, given a tx hash and/or a specific output, can search through the blockchain to see if it's been used as input in other transfers? This would preferably not be a web service but ...
5
votes
1answer
209 views

Is there anyway to calculate how much privacy is gained by increasing the ring size of a transaction?

The default for wallets right now is 4 but is there a large benefit say using 15 or 20 over 4? Can this be measured? Bigger ring size will help obviously but after a while is it not kind of a waste of ...
5
votes
1answer
167 views

Is mixin still needed with RingCT?

If RingCT hides amounts (so dust would no longer be a problem, as I've heard) and addresses, is there any downside to using a mixin of 0? Edit: I am aware that RingCT won't be available for the ...
4
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1answer
209 views

How are outputs chosen on the blockchain for ring signatures in a transaction?

Is there any criteria which outputs are chosen for a 'mixin' in a transaction?
4
votes
1answer
167 views

Can an output be used as a decoy after it has been spent?

The title of the question is probably specific enough, but I'll give more color anyway. Here's a quick timeline. I received output A a year ago. In the last year, output A has been a decoy in 3 ...
4
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1answer
268 views

In the beta GUI wallet, what levels of mixin are offered by the sliding Privacy bar?

In the GUI wallet, under the "Send" tab, does the sliding bar labelled "Privacy" refer to the level of mixin? If so, what level of mixing is provided by the "Low", Medium" and "High" options?
4
votes
1answer
97 views

How is the number of ring members selected?

How is the number of ring members signing a transaction selected? Is it selected randomly by the sender or is it defined by the Monero wallet?
3
votes
1answer
236 views

With RingCT on, can I lower mixin safely to save on tx fees?

Now that RingCT is on and transactions are many times bigger, would a mixin of 1, for example, be safe enough to keep a good level of privacy? I'm mainly asking because many pool operators have ...
3
votes
1answer
200 views

With a Churn: does it increase privacy more to do 1 TX with RingSize14 or 2 TX with RingSize7 or is it exactly the same?

In terms of increasing the distant to the original output.
3
votes
1answer
95 views

Will it be possible to see the mixin number with ringct on?

I was thinking if it was true you could see mixin number with ringct transaction? thanks everyone
3
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1answer
192 views

What are the pros and cons of changing the term “mixin”?

At one point there was some discussion to change the term "mixin" to something different, such as "ring partner" or "fake out", due to the fact that mixin doesn't do a good job of describing what a ...
3
votes
1answer
132 views

Number of outputs included in a given ring size

Historically the definition of mixin before recent plans to change the name to ring size counted the number of foreign or "fake" outputs in a ring. So for example a mixin of 6 would include a total ...
2
votes
1answer
167 views

What are Ring Members?

So as I understand, ring members are decoy outputs on the XMR Blockchain. Are these outputs originially public addresses (like in the BTC Chain) but have been hidden somehow? How have they been hidden?...
2
votes
1answer
221 views

More than one real input per transaction?

Is it possible to have more than one real input in a monero transaction? If yes, how can you know how many mixins are there and how many real inputs? If no, how do you explain this: https://...
2
votes
1answer
56 views

RingCT: What happens if accidentially decoy “Input + Output” sum up to 0?

In Ring CT the validattors check whether there is one combination of "Output + Input", that sums up to zero. What happens if "Real-Input + Output" does not sum up to zero, but accidentally some other ...
2
votes
1answer
63 views

Are deducible monero transactions blackballed by default (or is there a need or plan to do so)?

Prior to April 2016, zero mixin inputs were allowed to be used. As described by paper (link at bottom), transactions with zero mixins once led to provably deducible transactions. Does the current ...
2
votes
1answer
147 views

5-party Ring Signatures still being implicatory for sender?

Why are 5-party ring signatures enough for privacy? I don't understand how even if I get everything else right privacy-wise, I can still be connected to a transaction and potentially implicated in ...
2
votes
1answer
55 views

Can I chose my own outputs to mix in a transaction?

Will it only be random output to mix in a transaction or can i chose my own?
2
votes
0answers
16 views

What is the reasoning behind 0 mixin for Aeon? [duplicate]

Aeon is a fork of Monero, but it has kept the possibility of zero-mixin transactions which are considered a privacy breach for the CryptoNote protocol generally as they degrade the privacy of the ...
2
votes
0answers
203 views

Small bug with `default-mixin` [closed]

I just noticed that when I type 'set' in monero-wallet-cli [testnet] it prints, among other things default-mixin = 0. From what I understand, the default mixin should be the mixin level of a ...
1
vote
1answer
92 views

Are mixins now officially called decoys (and when did that happen)?

I was reading something written by a community member SamsungGalaxyPlayer, where they mention casually that "decoys" are the new name for "mixins". First time I've heard that. Can someone confirm and ...
1
vote
1answer
124 views

Why are there transactions in the Mempool that are invalid or over 50 hours old?

Checking xmrchain.net I noticed some very old transactions in the mempool. The oldest is over 70 hours old. It has a ringsize of 5 - how is that even possible? Are transactions not validated before ...
1
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1answer
66 views

Why did Monero start with an enforced mxin of 2 then plans to hardfork to enforced mixin of 4 later?

Are there any perks to doing it like this? Why not just start off with enforcing mixin of 4 at the beginning?