Discussing a latest assault on the Bitcoin community, through which some nodes have been flooding friends with pretend IP addresses.
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Bitcoin was beneath assault! It’s the story the mainstream media gained’t inform you!
Hosts Aaron van Wirdum and Sjors Provoost lastly met in Utrecht once more to document “Bitcoin, Defined.” On this episode, they mentioned a latest assault on the Bitcoin community, the place some nodes have been flooding friends with pretend IP addresses.
“These random folks that have been connecting to them would ship 500 messages, and every of these 500 messages would comprise 10 addresses, that have been purported to characterize different nodes on the community,” Provoost stated. “The messages have been actual, however the content material was nonsense. So, a node would connect with you, and they might ship you a bunch of addresses, but it surely seems these addresses have been only a bunch of random numbers.”
As beforehand mentioned in episode 13, Bitcoin nodes are connect with friends on the community by way of IP addresses, which they study from their current friends. Nodes on the community basically share the IP addresses of different nodes.
Just lately, nevertheless, some Bitcoin nodes shared massive quantities of IP addresses that weren’t related to actual Bitcoin nodes in any respect. Whereas this assault didn’t do very a lot harm, it did waste assets from nodes on the community. On high of that, van Wirdum and Provoost defined, the assault might provide the attacker perception into Bitcoin’s community topology by analyzing how the pretend IP addresses unfold by way of the community.
Lastly, van Wirdum and Provoost mentioned how the assault was solved by fee limiting the quantity of shared IP addresses that any node will permit its friends to obtain. Additional, they thought-about how in free and open-source software program improvement, fixing issues will not be all the time as simple as it could appear.