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0 sats \ 5 replies \ @ZezzebbulTheMysterious 26 Mar \ on: Dust Attack explained bitcoin
I really have my doubts about the value of dusting for tx graph discovery.
An adversary already knows the full tx graph, it’s a transparent ledger!
I don’t think one can learn anything you couldn’t already see onchain. You can see where every sat is locked anyway!
I’ve def had had dust on the old addrs. I always do coin control and leave the old utxos. It might have value to see that an old addr was used in the past — but again, transparent ledger and full tx graph. It’s there for all eternity.
An adversary already knows the full tx graph, it’s a transparent ledger! I don’t think one can learn anything you couldn’t already see onchain. You can see where every sat is locked anyway!
You don’t know the relationship between transactions.
But if I send you a few sats and later you buy something for 1m sats and you include the dust I sent you in the inputs, I can tell that you bought something for 1m sats. If you don’t include my dust, I can’t tell.
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Yes you can tell! You watch the address and see where the funds go. You learn nothing by dusting that you couldn’t already see.
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You don't understand it.
The receiver likely generates a new address each time.
When you ask someone for an address, the person will give you a virgin address.
The attacker wants to know THE OTHER addresses of the victim.
When the victim spends from that wallet the virgin address and the others will become visibly linked so that you know more about the victim's true bitcoin balance
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Yes, which would be visible on the blockchain. The linking occurs from spending, its nothing to do with the dust. Its a marker that doesn't really add much.
You see the source, and the destination of all sats. If you watch an address (the same as dusting), you learn exactly the same thing you would learn without the dusting.
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