Mike Hearn [ARCHIVE] on Nostr: 📅 Original date posted:2013-04-18 📝 Original message:> ...and actually, that's ...
📅 Original date posted:2013-04-18
📝 Original message:> ...and actually, that's not a problem if the defender is online, because
> they can just broadcast the highest sequence numbered tx, which blocks
> further broadcasts by the attacker.
Good point - transactions can be ordered by highest version seen before
they're signature checked. Even without that improvement it's still rather
tricky to win the race though.
I'm intending on making a prototype for myself at some point soon, probably
in bitcoinj. I've been making notes and writing some initial code - I did
successfully replace a transation on my own little testnet, then I figured
I'd submit the patch so it's easier for others to play with it. But I
haven't got the whole thing working end to end yet.
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Published at
2023-06-07 11:47:28Event JSON
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"content": "📅 Original date posted:2013-04-18\n📝 Original message:\u003e ...and actually, that's not a problem if the defender is online, because\n\u003e they can just broadcast the highest sequence numbered tx, which blocks\n\u003e further broadcasts by the attacker.\n\n\nGood point - transactions can be ordered by highest version seen before\nthey're signature checked. Even without that improvement it's still rather\ntricky to win the race though.\n\nI'm intending on making a prototype for myself at some point soon, probably\nin bitcoinj. I've been making notes and writing some initial code - I did\nsuccessfully replace a transation on my own little testnet, then I figured\nI'd submit the patch so it's easier for others to play with it. But I\nhaven't got the whole thing working end to end yet.\n-------------- next part --------------\nAn HTML attachment was scrubbed...\nURL: \u003chttp://lists.linuxfoundation.org/pipermail/bitcoin-dev/attachments/20130418/5296432d/attachment.html\u003e",
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