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Merge bitcoin/bitcoin#22558: psbt: Taproot fields for PSBT

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b80de4c505 test: Test signing psbts without explicitly having scripts (Andrew Chow)
a73b56888a wallet: also search taproot pubkeys in FillPSBT (Andrew Chow)
6cff82722f sign: Use sigdata taproot spenddata when signing (Andrew Chow)
5f12fe3f36 psbt: Implement merge for Taproot fields (Andrew Chow)
1ece9a3715 psbt, test: Check for taproot fields in taproot psbt test (Andrew Chow)
496a1bbe5e taproot: Use pre-existing signatures if available (Andrew Chow)
0ad21e7c55 tests: Test taproot fields for PSBT (Andrew Chow)
103c6fd279 psbt: Remove non_witness_utxo for segwit v1+ (Andrew Chow)
7dccdd3157 Implement decodepsbt for Taproot fields (Andrew Chow)
ac7747585f Fill PSBT Taproot output data to/from SignatureData (Andrew Chow)
25b6ae46e7 Assert that TaprootBuilder is Finalized during GetSpendData (Andrew Chow)
3ae5b6af21 Store TaprootBuilder in SigningProviders instead of TaprootSpendData (Andrew Chow)
4d1223e512 Fetch key origins for Taproot keys (Andrew Chow)
52e3f2f88e Fill PSBT Taproot input data to/from SignatureData (Andrew Chow)
05e2cc9a30 Implement de/ser of PSBT's Taproot fields (Andrew Chow)
d557eff2ad Add serialization methods to XOnlyPubKey (Andrew Chow)
d43923c381 Add TaprootBuilder::GetTreeTuples (Andrew Chow)
ce911204e4 Move individual KeyOriginInfo de/ser to separate function (Andrew Chow)

Pull request description:

  Implements the Taproot fields for PSBT described in [BIP 371](https://github.com/bitcoin/bips/blob/master/bip-0371.mediawiki).

ACKs for top commit:
  laanwj:
    Code review ACK b80de4c505

Tree-SHA512: 50b79bb44f353c9ec2ef4c98aac08a81eba560987e5264a5684caa370e9c4e7a8255c06747fc47749511be45b32d01492e015f92b82be8d22bc8bf192073bd26
This commit is contained in:
laanwj
2022-06-28 16:22:23 +02:00
parent 55c9e2d790 b80de4c505
commit 5bf65ec66e
17 changed files with 708 additions and 31 deletions
Download Patch File Download Diff File Expand all files Collapse all files

21
test/functional/data/rpc_psbt.json
View File

@@ -27,7 +27,18 @@
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],
"valid" : [
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@@ -43,7 +54,13 @@
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],
"creator" : [
{

43
test/functional/rpc_psbt.py
View File

@@ -9,7 +9,7 @@ from decimal import Decimal
from itertools import product
from test_framework.descriptors import descsum_create
from test_framework.key import ECKey
from test_framework.key import ECKey, H_POINT
from test_framework.messages import (
ser_compact_size,
WITNESS_SCALE_FACTOR,
@@ -723,5 +723,46 @@ class PSBTTest(BitcoinTestFramework):
)
assert_equal(psbt2["fee"], psbt3["fee"])
self.log.info("Test signing inputs that the wallet has keys for but is not watching the scripts")
self.nodes[1].createwallet(wallet_name="scriptwatchonly", disable_private_keys=True)
watchonly = self.nodes[1].get_wallet_rpc("scriptwatchonly")
eckey = ECKey()
eckey.generate()
privkey = bytes_to_wif(eckey.get_bytes())
desc = descsum_create("wsh(pkh({}))".format(eckey.get_pubkey().get_bytes().hex()))
if self.options.descriptors:
res = watchonly.importdescriptors([{"desc": desc, "timestamp": "now"}])
else:
res = watchonly.importmulti([{"desc": desc, "timestamp": "now"}])
assert res[0]["success"]
addr = self.nodes[0].deriveaddresses(desc)[0]
self.nodes[0].sendtoaddress(addr, 10)
self.generate(self.nodes[0], 1)
self.nodes[0].importprivkey(privkey)
psbt = watchonly.sendall([wallet.getnewaddress()])["psbt"]
psbt = self.nodes[0].walletprocesspsbt(psbt)["psbt"]
self.nodes[0].sendrawtransaction(self.nodes[0].finalizepsbt(psbt)["hex"])
# Same test but for taproot
if self.options.descriptors:
eckey = ECKey()
eckey.generate()
privkey = bytes_to_wif(eckey.get_bytes())
desc = descsum_create("tr({},pk({}))".format(H_POINT, eckey.get_pubkey().get_bytes().hex()))
res = watchonly.importdescriptors([{"desc": desc, "timestamp": "now"}])
assert res[0]["success"]
addr = self.nodes[0].deriveaddresses(desc)[0]
self.nodes[0].sendtoaddress(addr, 10)
self.generate(self.nodes[0], 1)
self.nodes[0].importdescriptors([{"desc": descsum_create("tr({})".format(privkey)), "timestamp":"now"}])
psbt = watchonly.sendall([wallet.getnewaddress()])["psbt"]
psbt = self.nodes[0].walletprocesspsbt(psbt)["psbt"]
self.nodes[0].sendrawtransaction(self.nodes[0].finalizepsbt(psbt)["hex"])
if __name__ == '__main__':
PSBTTest().main()

4
test/functional/test_framework/key.py
View File

@@ -15,6 +15,10 @@ import unittest
from .util import modinv
# Point with no known discrete log.
H_POINT = "50929b74c1a04954b78b4b6035e97a5e078a5a0f28ec96d547bfee9ace803ac0"
def TaggedHash(tag, data):
ss = hashlib.sha256(tag.encode('utf-8')).digest()
ss += ss

25
test/functional/wallet_taproot.py
View File

@@ -8,6 +8,7 @@ import random
from decimal import Decimal
from test_framework.address import output_key_to_p2tr
from test_framework.key import H_POINT
from test_framework.test_framework import BitcoinTestFramework
from test_framework.util import assert_equal
from test_framework.descriptors import descsum_create
@@ -157,9 +158,6 @@ KEYS = [
CHANGE_XPRV = "tprv8ZgxMBicQKsPcyDrWwiecVnTtFmfRwbfFqEfR4ZGWvq5aTTwLBWmAm5zrbMcYtb9gQNFfhRfqhhrBG37U3nhmXxEgeEPBJGHAPrHCrAd1WX"
CHANGE_XPUB = "tpubD6NzVbkrYhZ4WSFeQbPF1uSaTHHbbGnZq8qShabZwCdUQwihxaLMMFhs2kidGF2qrRKiQVqw8VoyuTHj1bZqmMXMeciaU1gBjWA1sim2zUB"
# Point with no known discrete log.
H_POINT = "50929b74c1a04954b78b4b6035e97a5e078a5a0f28ec96d547bfee9ace803ac0"
def key(hex_key):
"""Construct an x-only pubkey from its hex representation."""
@@ -301,9 +299,21 @@ class WalletTaprootTest(BitcoinTestFramework):
test_balance = int(self.psbt_online.getbalance() * 100000000)
ret_amnt = random.randrange(100000, test_balance)
# Increase fee_rate to compensate for the wallet's inability to estimate fees for script path spends.
psbt = self.psbt_online.walletcreatefundedpsbt([], [{self.boring.getnewaddress(): Decimal(ret_amnt) / 100000000}], None, {"subtractFeeFromOutputs":[0], "fee_rate": 200})['psbt']
res = self.psbt_offline.walletprocesspsbt(psbt)
assert(res['complete'])
psbt = self.psbt_online.walletcreatefundedpsbt([], [{self.boring.getnewaddress(): Decimal(ret_amnt) / 100000000}], None, {"subtractFeeFromOutputs":[0], "fee_rate": 200, "change_type": "bech32m"})['psbt']
res = self.psbt_offline.walletprocesspsbt(psbt=psbt, finalize=False)
decoded = self.psbt_offline.decodepsbt(res["psbt"])
if pattern.startswith("tr("):
for psbtin in decoded["inputs"]:
assert "non_witness_utxo" not in psbtin
assert "witness_utxo" in psbtin
assert "taproot_internal_key" in psbtin
assert "taproot_bip32_derivs" in psbtin
assert "taproot_key_path_sig" in psbtin or "taproot_script_path_sigs" in psbtin
if "taproot_script_path_sigs" in psbtin:
assert "taproot_merkle_root" in psbtin
assert "taproot_scripts" in psbtin
rawtx = self.nodes[0].finalizepsbt(res['psbt'])['hex']
txid = self.nodes[0].sendrawtransaction(rawtx)
self.generatetoaddress(self.nodes[0], 1, self.boring.getnewaddress(), sync_fun=self.no_op)
@@ -442,8 +452,7 @@ class WalletTaprootTest(BitcoinTestFramework):
assert(self.rpc_online.gettransaction(txid)["confirmations"] > 0)
psbt = self.psbt_online.sendall(recipients=[self.boring.getnewaddress()], options={"psbt": True})["psbt"]
res = self.psbt_offline.walletprocesspsbt(psbt)
assert(res['complete'])
res = self.psbt_offline.walletprocesspsbt(psbt=psbt, finalize=False)
rawtx = self.nodes[0].finalizepsbt(res['psbt'])['hex']
txid = self.nodes[0].sendrawtransaction(rawtx)
self.generatetoaddress(self.nodes[0], 1, self.boring.getnewaddress(), sync_fun=self.no_op)