🔖 Title: Unenforceable fee obligations in multiparty protocols with Taproot inputs
🏷️ Categories: bitcoin-dev
👥 Authors:
• Michael Folkson ( Michael Folkson [ARCHIVE] (npub103y…kpam) )
• Antoine Riard ( Antoine Riard [ARCHIVE] (npub1vjz…x8dd) )
• Anthony Towns ( Anthony Towns [ARCHIVE] (npub17rl…9l2h) )
• Yuval Kogman ( Yuval Kogman [ARCHIVE] (npub1hkf…8g7t) )
• Lloyd Fournier ( Lloyd Fournier [ARCHIVE] (npub1khl…05yp) )
• Peter Todd ( Peter Todd [ARCHIVE] (npub1m23…2np2) )
• Nadav Ivgi ( Nadav Ivgi [ARCHIVE] (npub1f2w…dpll) )
• Andrew Poelstra ( Andrew Poelstra [ARCHIVE] (npub1ae2…5t04) )
• Russell O'Connor ( Russell O'Connor [ARCHIVE] (npub1dw8…plrw) )
🗒️ Conversation Summary: A bug in Taproot allows the same Tapleaf to be repeated multiple times, incurring different Tapfee rates. Mitigations include knowing the entire Taptree, implementing RBF, and signing the entire tapbranch instead of the tapleaf. Miniscript can help prevent an attack in multiparty transactions, and uncompressed keys are banned.
📅 Messages Date Range: 2023-02-07 to 2023-02-15
✉️ Message Count: 18
📚 Total Characters in Messages: 59089
Bitcoin Mailing List
npub15g…x08lk
2023-06-07 23:19:24
Author Public Key
npub15g7m7mrveqlpfnpa7njke3ccghmpryyqsn87vg8g8eqvqmxd60gqmx08lkPublished at
2023-06-07 23:19:24Event JSON
{
"id": "1cb271826c48de88a6304ac8ffedd6340167a6ad4b82c11ba779c915dfc4192e",
"pubkey": "a23dbf6c6cc83e14cc3df4e56cc71845f611908084cfe620e83e40c06ccdd3d0",
"created_at": 1686179964,
"kind": 1,
"tags": [
[
"p",
"7c4981f0d3c5eec97631de273b25b6435f0f33e0fa6cce270ddd3f3b8797d26a"
],
[
"p",
"6485bc56963b51c9043d0855cca9f78fcbd0ce135a195c3f969e18ca54a0d551"
],
[
"p",
"f0feda6ad58ea9f486e469f87b3b9996494363a26982b864667c5d8acb0542ab"
],
[
"p",
"bd93d4f0280eb5fc59e028b3cddc81715c02f65db04534e98da4b77de31a6cf8"
],
[
"p",
"b5ff7c704f90e4eebfa414c0a017a84544c32586a1bd2fc86c74c2914d03c25e"
],
[
"p",
"daa2fc676a25e3b5b45644540bcbd1e1168b111427cd0e3cf19c56194fb231aa"
],
[
"p",
"4a9c50edfac56c5e90e382fdea7977edd0a5a46b6be7aad0461ae0075d9d2407"
],
[
"p",
"ee55eb03423bd4db01d5c92ad434d52c602d9da1de37ed37cc5bf7d2a13a4cab"
],
[
"p",
"6b8e77368804013d7126ba4b77c7963bcfeff909135791531097d7a0f03ca85d"
]
],
"content": "🔖 Title: Unenforceable fee obligations in multiparty protocols with Taproot inputs\n🏷️ Categories: bitcoin-dev\n👥 Authors: \n• Michael Folkson ( nostr:npub103ycruxnchhvja33mcnnkfdkgd0s7vlqlfkvufcdm5lnhpuh6f4q82kpam )\n• Antoine Riard ( nostr:npub1vjzmc45k8dgujppapp2ue20h3l9apnsntgv4c0ukncvv549q64gsz4x8dd )\n• Anthony Towns ( nostr:npub17rld56k4365lfphyd8u8kwuejey5xcazdxptserx03wc4jc9g24stx9l2h )\n• Yuval Kogman ( nostr:npub1hkfafupgp66lck0q9zeumhypw9wq9ajakpznf6vd5jmhmcc6dnuqcu8g7t )\n• Lloyd Fournier ( nostr:npub1khlhcuz0jrjwa0ayznq2q9agg4zvxfvx5x7jljrvwnpfzngrcf0q7y05yp )\n• Peter Todd ( nostr:npub1m230cem2yh3mtdzkg32qhj73uytgkyg5ylxsu083n3tpjnajxx4qqa2np2 )\n• Nadav Ivgi ( nostr:npub1f2w9pm06c4k9ay8rst7757thahg2tfrtd0n645zxrtsqwhvaysrswydpll )\n• Andrew Poelstra ( nostr:npub1ae27kq6z802dkqw4ey4dgdx493szm8dpmcm76d7vt0ma9gf6fj4svz5t04 )\n• Russell O'Connor ( nostr:npub1dw88wd5gqsqn6ufxhf9h03uk8087l7gfzdtez5csjlt6pupu4pwsj8plrw )\n🗒️ Conversation Summary: A bug in Taproot allows the same Tapleaf to be repeated multiple times, incurring different Tapfee rates. Mitigations include knowing the entire Taptree, implementing RBF, and signing the entire tapbranch instead of the tapleaf. Miniscript can help prevent an attack in multiparty transactions, and uncompressed keys are banned.\n📅 Messages Date Range: 2023-02-07 to 2023-02-15\n✉️ Message Count: 18\n📚 Total Characters in Messages: 59089\n",
"sig": "149cb4c624e35e8f471cb0d6a5b5ee643b856d01fd70b7ac0bb3b5e515e60921ef4a3653ce446cf5ff6b33c581aa7c7971c0c7baa235234ec31bd7872538f06d"
}