📅 Original date posted:2023-05-11
🗒️ Summary of this message: Gossiping about reputations can lead to unreliable information and attackers can earn positive reputations elsewhere before attacking trusted nodes.
📝 Original message:
Hi all,
> > This gets compounded as soon as we start gossiping about reputations,
> > since now our decisions are no longer based just on information we can
> > witness ourselves, or at least verify its correctness, and as such an
> > attacker can most likely "earn" a positive reputation in some other
> > part of the world, and then turn around and attack the nodes that
> > trusted the reputation shared from those other parts.
> >
>
> Notice that we are not gossiping about our peer's reputation. The only
> thing that a node communicates to its neighbor is whether they see an HTLC
> as endorsed or just neutral, that is, should this HTLC be granted access to
Yeah, this is a good point. If we gossip this information, we may see
different values for the same node, and I'm sure someone will propose a
"proof who is telling the true" for this. I don't want the reputation we
end up with to be gossiped to our peers.
In my last research on this, I noted that some nodes with Tor have a completely
unrealistic vision of the network. They believe that other nodes are
offline, but the problem is actually the overloaded Tor network.
Cheers!
Vincent
Vincenzo Palazzo [ARCHIVE] /
npub1ag…avd3v
2023-06-09 13:13:19
in reply to nevent1q…4knz
Author Public Key
npub1ag2fg2g28hkp9937ptppmdtm38cl37zmr7w7229g7m75wmgyv73s9avd3vPublished at
2023-06-09 13:13:19Event JSON
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"content": "📅 Original date posted:2023-05-11\n🗒️ Summary of this message: Gossiping about reputations can lead to unreliable information and attackers can earn positive reputations elsewhere before attacking trusted nodes.\n📝 Original message:\nHi all,\n\n\u003e \u003e This gets compounded as soon as we start gossiping about reputations,\n\u003e \u003e since now our decisions are no longer based just on information we can\n\u003e \u003e witness ourselves, or at least verify its correctness, and as such an\n\u003e \u003e attacker can most likely \"earn\" a positive reputation in some other\n\u003e \u003e part of the world, and then turn around and attack the nodes that\n\u003e \u003e trusted the reputation shared from those other parts.\n\u003e \u003e\n\u003e\n\u003e Notice that we are not gossiping about our peer's reputation. The only\n\u003e thing that a node communicates to its neighbor is whether they see an HTLC\n\u003e as endorsed or just neutral, that is, should this HTLC be granted access to\n\nYeah, this is a good point. If we gossip this information, we may see \ndifferent values for the same node, and I'm sure someone will propose a \n\"proof who is telling the true\" for this. I don't want the reputation we \nend up with to be gossiped to our peers.\n\nIn my last research on this, I noted that some nodes with Tor have a completely\nunrealistic vision of the network. They believe that other nodes are \noffline, but the problem is actually the overloaded Tor network.\n\nCheers!\n\nVincent",
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