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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.

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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? ...
nMQz4QF4MVoTsIkkO5vH's user avatar
3 votes
0 answers
79 views

How does a game like Satoshi Dice avoid de-anonymizing users?

When considering games like satoshi dice or many other more typical online casino games, how do they handle awarding prizes? It seems like they pay back to the original input that sourced capital to ...
Sidharth Ghoshal's user avatar
3 votes
0 answers
64 views

What does the Payment Hub learn about its users in TumbleBit?

When a user participates in transactions on a TumbleBit payment hub, what does the payment hub learn about the user's transactions?
Murch's user avatar
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3 votes
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174 views

What additional actions should an ethical Bitcoin-related business take with each transaction?

I'm considering starting an ethical business for users that accepts Bitcoin as a payment. My intent is to abide by all laws and interpret them in an appropriate manner. My intent is to abide by ...
makerofthings7's user avatar
2 votes
0 answers
55 views

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 ...
bl0ck3d's user avatar
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2 votes
0 answers
452 views

zk-SNARKs vs. Zk-STARKs vs. BulletProofs? (Updated)

zk-SNARKs, Zk-STARKs and BulletProofs are three major zero knowledge proofs to provide privacy for the blockchain technology. If we can compare them, (1) Bulletproofs and Zk-STARKs require no ...
Questioner's user avatar
  • 1,126
2 votes
0 answers
62 views

What impact on privacy does it have when a service like Coinbase starts using batching?

In the recent discussion of Coinbase's sending outage, the question was brought up how the privacy of Coinbase's customers would be affected if Coinbase started to use payment batching instead of ...
Murch's user avatar
  • 76k
2 votes
0 answers
161 views

Method to measure "distance" between 2 transaction id's

Is there a blockchain tool/code that takes two BTC transaction ID's and determines a distance between them. It's 2017 and Bitcoin Privacy (aka trying to walk around in the public without a sign over ...
Jan Kopacz's user avatar
2 votes
0 answers
123 views

Proper use of mixing service

Everybody knows that bitcoin blenders anonymize your coins but shouldn't you follow some precautions for your mixing to be effective? I suppose that mixer is fair (it won't steal your money and does ...
Val's user avatar
  • 235
2 votes
0 answers
965 views

Anonymous (no ID, no verification) Payments to PayPal?

Not looking for a discussion on how Bitcoin payments can be traced and it's not truly anonymous. I'm not looking for total anonymity, I just don't want the merchant or payment processor to identify me....
Glitch Desire's user avatar
2 votes
0 answers
216 views

How do I implement a blind multisig protocol?

I'd like to implement a 2-of-3 multisig protocol such that: Three parties generate private keys The private keys are never physically combined on one system - each private key never leaves its system ...
ripper234's user avatar
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2 votes
1 answer
65 views

Is it cryptographically possible to have aggregate signature schemes that can improve privacy in UTXO consolidation?

My understanding of Schnorr signatures, Taproot and Graftroot and how they improve privacy in smart contracts / multi-sig is by allowing users to aggregate signatures so the individual signatures and ...
crypt_chameleon's user avatar
1 vote
1 answer
549 views

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 ...
Frungi's user avatar
  • 11
1 vote
1 answer
104 views

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 ...
eloyesp's user avatar
  • 202
1 vote
0 answers
474 views

What settings required to privately run bitcoin core on tails?

I am running bitcoin-core on TailsOS which seems to work out of the box. I think TailsOS blocks all unsafe requests but I would like to know what settings I should enable to run it really privately. ...
degenprivacy's user avatar
1 vote
0 answers
207 views

Dandelion++ for Bitcoin

Dandelion BIP: https://github.com/bitcoin/bips/blob/master/bip-0156.mediawiki The article that I read about Dandelion++: https://www.monerooutreach.org/stories/dandelion.html It mentioned that ...
user avatar
1 vote
1 answer
236 views

Can multiple different addresses in a wallet be linked easily?

Is it easy to link multiple transactions each with a different receive address to the same wallet? What if after going to this wallet the Bitcoin was converted to Monero?
Number9's user avatar
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1 vote
0 answers
310 views

Why does my public IP show a Bitcoin Node is running when it is set up over Tor?

I've set up my node to run exclusively over TOR. But when I check https://bitnodes.earn.com/ and a few other sites with my public IP to check if a bitcoin node is accepting incoming connections, it ...
KiSBitcoin's user avatar
1 vote
0 answers
45 views

State of privacy-preserving light clients

Currently, it is trivial to operate a SPV wallet in Bitcoin at the cost of a lot of privacy due to the necessity to connect to full nodes that offer SPV services. Neutrino, currently being worked on ...
rny's user avatar
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1 vote
0 answers
82 views

Zerocash: how to verify that a mint transaction is correct

I'm reading the whitepaper of zerocash and I don't understand how a mint transaction works. Here are my following questions: How do you prove that you have enough bitcoins to form a certain amount of ...
x4rkz's user avatar
  • 111
1 vote
0 answers
112 views

Why do most alt coin developers choose to remain anonymous?

Is having a known public identity not helpful in building reputation for a project? Are the privacy and security concessions associated with revealing your identity not worth the perceived benefit?
tryinghard's user avatar
1 vote
0 answers
992 views

bitmixer.io usage

I am somewhat confused by the bitmixer.io site. I can enter the Adress, where I want to send bitcoins to, but I have no idea how to go from there. How can I send bitcoins into the service? Can anyone ...
user21133's user avatar
0 votes
0 answers
14 views

Can a Seed be Linked Across Two Multisig Wallets?

Consider two multisig wallets, Wallet A and Wallet B, both with a 2-of-3 signing scheme: Wallet A consists of seeds A, B, and C. Wallet B consists of seeds B, C, and D. Now, let's create two ...
Bertram Lund's user avatar
0 votes
1 answer
95 views

How can I send bitcoin to an address without a third party app?

Let's say I've generated a pub-priv key pair using ssh-keygen and loaded cash into it using an ATM. I've avoided using third parties thus far, so how can I continue this with sending bitcoin to a ...
user144264's user avatar
0 votes
0 answers
204 views

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 ...
user avatar
0 votes
0 answers
137 views

What is it that frees Bisq from all these KYC/AML laws and regulations?

I feel as if I should probably not ask about this, and instead just quietly go on using it in my little corner, not bringing any attention to its existence, but I still must ask: What is it that ...
J Patane's user avatar
0 votes
0 answers
67 views

Can you think of a safe way to safely keep my "spendable" Bitcoin in my situation?

I have my "cold stash" wallet.dat on multiple fully offline, encrypted hard disks/sticks inside a fireproof safe. I never seriously considered printing them onto paper because that would be ...
D. Retelle's user avatar
0 votes
0 answers
45 views

How blockchain privacy works

I have just read this which talks about creating private blockchains and using a unique public/private key per transaction so you can't be traced. There are also "Zero-knowledge proofs" which I'm not ...
Lance's user avatar
  • 221
0 votes
0 answers
321 views

Can I anonymously self-publish books on Amazon and get paid in Bitcoin?

I want to publish the book under a pseudonym, or better yet, anonymously! I had been looking into Amazon Kindle Direct Publishing. I’d also like to use an anonymous e-mail address. Would it be ...
VIPaul's user avatar
  • 141
-1 votes
2 answers
801 views

If the public key characterize the wallet, is it possible to track all transactions of that wallet?

To explain better my question, consider this example: Individual A is an investigator Individual B is been investigated Faking to be interested B's service, individual A gets B's public key to pay ...
user68280's user avatar