Vincenzo Palazzo [ARCHIVE] on Nostr: 📅 Original date posted:2023-05-11 🗒️ Summary of this message: Gossiping about ...
📅 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
🗒️ 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