📅 Original date posted:2015-12-26
📝 Original message:Another option for how to deal with block withholding attacks: Give the miner who finds the block a bonus. This could even be part of the coinbase transaction.
Block withholding is effective because it costs the attacker 0% and costs the pool 100%. If the pool's coinbase tx was 95% to the pool, 5% (1.25 BTC) to the miner, that would make block withholding attacks much more expensive to the attacker without making a huge impact on reward variance for small miners. If your pool gets attacked by a block withholding attack, then you can respond by jacking up the bonus ratio. At some point, block withholding attacks become unfeasibly expensive to perform. This can work because the pool sacrifices a small amount of variance for its customers by increasing the bonus, but the block attacker sacrifices revenue. This should make the attacker give up before the pool does.
This system already exists in p2pool, although there the reward bonus for the block's finder is only 0.5%.
This must have been proposed before, right? Anyone know of a good analysis of the game theory math?
-------------- next part --------------
A non-text attachment was scrubbed...
Name: signature.asc
Type: application/pgp-signature
Size: 496 bytes
Desc: Message signed with OpenPGP using GPGMail
URL: <http://lists.linuxfoundation.org/pipermail/bitcoin-dev/attachments/20151226/ff9f8ec9/attachment.sig>;
Jonathan Toomim [ARCHIVE] /
npub1pl…yj0hj
2023-06-07 19:47:10
in reply to nevent1q…c5rq
Author Public Key
npub1pl6kcz00s7wgn6syh73dta0qm9sqpmtw4adv8rnm2w9fmynkw45sayj0hjPublished at
2023-06-07 19:47:10Event JSON
{
"id": "9474610766812fcc1717ae8d21f8aabf6bb6614d81b8c798d04c6802406c44d3",
"pubkey": "0ff56c09ef879c89ea04bfa2d5f5e0d96000ed6eaf5ac38e7b538a9d92767569",
"created_at": 1686160030,
"kind": 1,
"tags": [
[
"e",
"29b7621364af8f1f611558ed33ab90fd2b7daff5f620fc02b9ca3019fe1123e5",
"",
"root"
],
[
"e",
"bd25aa63c557e9826990699e8c184803ac9543a0b761f2dd0960f2acfc343d1b",
"",
"reply"
],
[
"p",
"498a711971f8a0194289aee037a4c481a99e731b5151724064973cc0e0b27c84"
]
],
"content": "📅 Original date posted:2015-12-26\n📝 Original message:Another option for how to deal with block withholding attacks: Give the miner who finds the block a bonus. This could even be part of the coinbase transaction.\n\nBlock withholding is effective because it costs the attacker 0% and costs the pool 100%. If the pool's coinbase tx was 95% to the pool, 5% (1.25 BTC) to the miner, that would make block withholding attacks much more expensive to the attacker without making a huge impact on reward variance for small miners. If your pool gets attacked by a block withholding attack, then you can respond by jacking up the bonus ratio. At some point, block withholding attacks become unfeasibly expensive to perform. This can work because the pool sacrifices a small amount of variance for its customers by increasing the bonus, but the block attacker sacrifices revenue. This should make the attacker give up before the pool does.\n\nThis system already exists in p2pool, although there the reward bonus for the block's finder is only 0.5%.\n\nThis must have been proposed before, right? Anyone know of a good analysis of the game theory math?\n-------------- next part --------------\nA non-text attachment was scrubbed...\nName: signature.asc\nType: application/pgp-signature\nSize: 496 bytes\nDesc: Message signed with OpenPGP using GPGMail\nURL: \u003chttp://lists.linuxfoundation.org/pipermail/bitcoin-dev/attachments/20151226/ff9f8ec9/attachment.sig\u003e",
"sig": "d41074c3ef22afc7f1edaf1d5b941e74836b62aa81e5cd63a7406e65e736c4978e05881be406d647230013f3e4cbc78ad48bf517e9440eeec1143bf003f042bf"
}