Questions tagged [privacy]
Questions regarding the information that is leaked through cryptocurrency transactions or related processes, when subject to analysis and attempts of identification of sources and other properties.
405
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I've combined dust with other, valuable UTXO's. Can I de-link them?
Long ago, when Bitcoin was only a geeky novelty with very little fiat value, I mined some BTC in a mining pool. There were several transactions resulting in (fractions of) newly generated coins sent ...
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Listening only for local inbound connections over "clearnet", and using Tor for external connections
I want to connect some wallets to my node in my LAN, over regular connection (not Tor), but I don't want my node to use this "clearnet" connection for anything else (for example to connect ...
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Bitcoind is able to listen both to clearnet and Tor networks but broadcast transaction only over Tor?
I know bitcoin core node can listen to both Tor and clearnet connections, but in this situation is it possible to broadcast transaction only over the Tor network and not clearnet? I'm asking it for ...
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Which are considered not-for-public fields of the ones returned by getaddressinfo?
Create a new address in a descriptor wallet, then getaddressinfo - a result like the following is output:
{
"result": {
"address": "bc1qf...",
"...
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Does it affect bitcoin's privacy if I create an explorer that works differently?
Does it affect bitcoin's privacy when I create an explorer that works differently and tracks inputs based on LIFO (Last In First Out)? Does it affect bitcoin protocol's fungibility?
Context: FIFO is ...
user133407
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Why would I prefer a full client over a light client that depends on a centralized server?
There are Bitcoin wallets like "Sparrow" which use a central service for maintaining the Blockchain, so I don't have to download 400GB to start using Bitcoin.
Now, why should I use Bitcoin ...
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2
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What is the standard or best practice for bitcoin wallet address labeling, if any?
Transferring wallet address labels from different wallets is non-trivial today, as there is no standard for this metadata it seems.
Could address labelling be included in wallet config files at ...
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Mobile wallet with unnecesary input heuristic
The iOS wallet I use leaks privacy by not implementing an option to use the unnecesary input heuristic.
I would prefer a wallet that defaults to the unnecesary input heuristic, or at least allows an ...
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Why criminals still use bitcoin mixers when there is other blockchains?
I came across the following article
Allen Goldmann, A person is trying to hide $5 million in stolen Bitcoins from a Darknet marketplace, Forbes, November 28, 2022
where some criminal tried to ...
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Can I create an entirely new m-of-n multi-sig wallet with the same seed phrases as an existing one by increasing n and discarding the new seed phrase?
If I were to create a 2-of-4 multi-sig wallet using the 3 seed phrases of an existing 2-of-3 wallet, plus a new seed phrase that I instantly destroy, would I then effectively have a new completely ...
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What are the privacy implications of sharing or publishing the .onion address of a bitcoin node?
Some tutorials redact the .onion address of their nodes for privacy reasons: https://coldcard.com/docs/img/econoalch/Sparrow47.png
What are the attack vectors that they are defending themselves from? ...
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Descriptors of potentially fraudulent bitcoin transactions
I'm looking into suspicious bitcoin transactional patterns and I was wondering whether there is someone with experience in that area.
If we consider transactions as iid data, then what descriptors (...
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What is the risk involved in fedimint?
I want to know the risks involved in fedimint? Fedimint is something that was shared as improving privacy for bitcoiners.
user133407
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What actually did Alexander Vinnik / BTC-e do?
As far as I undesrstood, Vinnki / BTC-e just allowed anonymous operations, nothing more. They didn't steal money, Vinnik didn't launder it himself. Other criminals just used BTC-e for their activities,...
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Is it possible to determine what node a transaction originated from?
Let's say node-A is propagating a transaction to it's peers on the network: node-B, node-C, etc. Is there any way for the other nodes to know that node-A is the originator of that transaction, as ...
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Is it possible to identify UTXOs signed by HD wallets?
I was wondering if the fact that a transaction was created by an HD wallet can be somehow read off from the UTXO, or any other data available in the blockchain.
Theoretically, it is not required in ...
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Determining change address
hoping to gain a bit more clarity on how change addresses work here.
In the attached example, can the change address be identified with 100% certainty? Is there a potential scenerio where it could be ...
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Encryption for Mempool Privacy
Ferveo: Threshold Decryption for Mempool Privacy in BFT networks - https://eprint.iacr.org/2022/898
This paper describes some methods to encrypt transactions when in mempool and decrypt on inclusion ...
user133407
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Using online exchange like ChangeNOW or FixedFloat to create anonymity?
Online exchanges like ChangeNOW, SimpleSwap and FixedFloat, unless they keep records for a long period, which theoretically might be later accessed by authorities, might offer considerable privacy. I ...
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Why anonymity is important in blockchain, what are the core reasons?
I have searched a lot about this topic, but couldn't get a perfect answer. Why is anonymity is important in blockchain if the transactions are legit, What are the core reasons for importance of ...
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Broadcasting fake Lightning channels
As I understand it, right now every public Lightning Network channel must be tied to a UTXO. This is required in order to prevent nodes from spamming the gossip network with nonexistent channels, but ...
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Is there any privacy issue in doing this hard-to-summarize thing with Bitcoin Core?
I have a "hot" wallet.dat with no password, with a small amount of satoshis.
Recently, I transferred them all over to my Bisq wallet temporarily to make trades. So the hot wallet.dat has 0 ...
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What's the difference between anonymous and pseudonymous electronic money?
You often hear people say that Bitcoin is a pseudonymous system, and that it's not anonymous. What is the actual difference in the context of electronic money?
Pseudonymity means that you can see the ...
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Is it safer to send bitcoin to multiple addresses when moving to another wallet?
If I decide to move all of my bitcoins from one wallet to another, are there any theoretical benefits to generate multiple addresses in a new wallet and split the bitcoins between them?
It will still ...
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In what ways does BGP hijacking affect Bitcoin?
Based on this answer from 2014, bitcoin nodes are vulnerable to BGP hijacking although I am looking for more details about how BGP hijacking attack could affect Bitcoin p2p network.
What could be ...
user133407
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What are the advantages/disadvantages to using the same Wallet Address?
I'm very curious about the reasons people keep their wallet addresses private. I don't understand, some people just post them publicly and nothing bad ever seems to happen.
I am involved with a ...
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Does coinjoin provide better privacy than coinswap?
In July 2020 one Twitter user shared a zcash transaction id which had shielded addresses however another user was able to get the transparent address from it. This was possible because t-z conversion ...
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What are the best practices for managing empty, unwanted wallets?
If I have a deterministic wallet which previously held bitcoin but is now empty and is no longer needed, what information should I keep? I think there are three options:
keep nothing
keep the master ...
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With MuSig2 can we now avoid any privacy leak of a Lightning channel's onchain UTXO?
Now we have access to Schnorr and MuSig(2) onchain can we avoid any privacy leak of a Lightning channel's associated onchain UTXO?
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What are the privacy implications of using Electrum public nodes?
My (perhaps naive) understanding is that Electrum sends first n addresses to a single randomly-chosen public server to check balances.
If all addresses have balances, Electrum then sends next n ...
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Does pruning reveal anything private such as one’s UTXOs?
I am writing a hardened Bitcoin node guide and I don’t fully understand the implications of pruning.
My understanding is that when one has a full copy of the blockchain, the node itself doesn’t reveal ...
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What knows a LN intermediate node about a transaction?
Following with How much privacy does Lightning actually have? there is some extra questions I would like to ask.
Suppose that Alice send a LN payment to Bob and the transaction founds a route with ...
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Is it safe to use the same BTC address for an ongoing exchange DCA?
I'd like to ask a question about re-using an address for a DCA. I've searched the forum and found some similar answers but nothing exactly which describes my situation.
I have an auto DCA set up from ...
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do Bitcoin full node onions also relay non-bitcoin traffic?
During the past week or so I am setting up a Bitcoin core full node on Raspberry Pi and making it as secure as possible. In the public mind, the onion sites and Darknet are associated with many things ...
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If you wanted to privately receive bitcoin from someone, how would you do that?
I do not like to be tracked when receiving or sending bitcoins.
How do you make a secure wallet?
If you wanted to privately get bitcoin from someone, how do you get it?
How do you get the address to ...
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How to do experiments on bitcoin blockchain?
I come up with a protocol that can enhance the privacy of bitcoin. I want to do some simple experiments on the bitcoin blockchain. However, doing experiments on the real bitcoin blockchain seems ...
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What do people mean when they say that Bitcoin are "unconfiscateable"? [duplicate]
So all my Bitcoin are on an encrypted wallet.dat inside a VeraCrypted USB memstick inside a fireproof safe.
While this might stop random a burglar, how does it stop the government from confiscating ...
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How to edit bitcoin.conf for bitcoin.cli scripting
I want to install Kristaps Kaupe’s scripts on my bitcoin.conf but I am afraid I don't have the technical expertise necessary to make it run.
I am simply cutting and pasting it on my bitcoin.conf file, ...
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Are transactions from two separate bitcoin accounts on Ledger Nano S independent of each other?
John Doe creates two separate bitcoin accounts on a ledger nano s and funds the accounts from two separate sources. The first funding source is a known terrorist organization and the second funding ...
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Can everyone see "message signatures" I create & verify?
I need to sign and verify messages on a couple of addresses, and I need to write my full name and address as message. Is there any concern that anyone can read the message(name and address) other than ...
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How do people know who sent them bitcoin, ex. in case of a ransomware targetting multiple locations?
I have a rough understanding about how bitcoin works and have read about how anonymous it is, or rather how not anonymous it can be in certain situations. But I still do not get how is it possible to ...
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How will censorship affect the lightning network?
If the Bitcoin lightning network were to become widely used, what will prevent regulators from cutting people off?
The lightning network provides participants with the topography for the purpose of ...
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How about force the use of unbalanced Merkle tree in Taproot?
I noticed this sentence in Taproot about the MAST build.
The remaining scripts should be organized into the leaves of a binary tree. This can be a balanced tree if each of the conditions these ...
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Why don't add salt to the tapscript in Taproot?
The corresponding Merkle proof needs to be given when unlocking UTXO using MAST, where the hash of an unused script will be included. For the observation, it seems possible to guess the unused script ...
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How to accept donation correctly?
Imagine a web page that wants to accept Bitcoin donations. A naive approach is to provide a single address on the page and that's it. The problem here is that the address is known to everyone and if ...
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Where does a single script go in the Taproot tree of a script path spend?
If I only have a single script for the script path does the hash of the script get placed at the top of the Merkle tree (instead of the effective Merkle root) or does it get placed in level 1 of the ...
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What exactly is "privatekeys.pw"?
Today, I stumbled upon this bizarre website: https://privatekeys.pw/
Bitcoin Private Keys Directory
The FAQ makes no sense at all and doesn't explain what it is about whatsoever.
What could they be ...
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Does the future SIGHASH_ANYPREVOUT capability hurt the privacy of Taproot lightning channels?
One of the advantages I've heard about Taproot is that all transactions will appear identical to a blockchain observer. This would of course also be true for lightning channel open/close transactions ...
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When you make a Bitcoin transaction, can the receiving person (and the world?) really see how much coins you have in the entire wallet?
I really hope that I've got this horribly wrong, but I have to ask...
I have this idea, which I base on comments and explanations I've heard over the years, that when you make a Bitcoin transaction, ...
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Can someone recognize any two addresses (generated by hardware wallet) come from the same hardware wallet/mnemonic seed?
Can someone recognize any two addresses (generated by hardware wallet) come from the same hardware wallet/mnemonic seed?If I generate multiple cryptocurrency accounts/addresses in ledger live,is it ...
user117743