Subnostr

> Does it know that you only have private channels and you don’t route?

Suppose it only knows about private channels and cannot see any public channels belonging to you. How does that change anything? It still doesn't know if you're just another routing node: you can route through private channels, especially if you have a different node that *does* have public channels, and *that* node has a private channel with *this* node (i.e. with the only one the LSP knows about)

> Is the LSP calculating the route for you?

Suppose it is. How does that change anything? He doesn't know if you're the first hop (you might be a routing node) and he doesn't know if your recipient is the last hop (HE might be a routing node too)

Is the receiver also connected to the LSP?

Suppose he is. How does that change anything? The LSP still doesn't know if the recipient listed in the invoice is the *real* recipient or a routing node.

Juraj 9mo ago

Phoenix for example does not route, there's not even code to route. It just gives the invoice to pay to the server that creates the route.

Yes, you could have magically switched it without changing the keys for a routing node, after you created a channel with the LSP using their API, but I guess the probability that it did not happen is 100% and Phoenix server can be pretty sure it's talking to either Phoenix wallet or phoenixd and thus see all the invoices and infer who is both the sender and the receipient.

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Discussion

Super Testnet 9mo ago

nostr:nevent1qqs9mrffm7rgkz3e2c0y8plca7slftsdv7yr9qk2q0q74jus8fk4v6gpz3mhxue69uhhyetvv9ujuerpd46hxtnfduqs7amnwvaz7tmwdaehgu3wd4hk6q3qyxp7j36cfqws7yj0hkfu2mx25308u4zua6ud22zglxp98ayhh96s9vkn56

Juraj 9mo ago

Sure, build it.

Problem is there are thousands of channels open by Phoenix, which can't route, they will probably not live swap their non routing wallet to your blinder and the assumption would still hold for 99.999% of payments. More than 30% is already bad privacy.

Super Testnet 8mo ago

> Problem is there are thousands of channels open by Phoenix, which can't route

They can

> they will probably not live swap their non routing wallet to your blinder

There's no way to tell if they do or don't. The fact that it's possible for them to route undetectably means any of them might be doing it. Acinq has no way to know.

Juraj 8mo ago

The assumption they can't is correct in 99.99% cases. More than 30% is already a privacy problem.

It's called heuristics.