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6559e4d27a
The signing test for the large miniscript can sometimes take longer than the 30 second timeout, depending on the load on my system. Increasing it to 90 seconds seems to be good enough.
404 lines
18 KiB
Python
Executable file
404 lines
18 KiB
Python
Executable file
#!/usr/bin/env python3
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# Copyright (c) 2022 The Bitcoin Core developers
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# Distributed under the MIT software license, see the accompanying
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# file COPYING or http://www.opensource.org/licenses/mit-license.php.
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"""Test Miniscript descriptors integration in the wallet."""
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from test_framework.descriptors import descsum_create
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from test_framework.psbt import PSBT, PSBT_IN_SHA256
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from test_framework.test_framework import BitcoinTestFramework
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from test_framework.util import assert_equal
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TPRVS = [
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"tprv8ZgxMBicQKsPerQj6m35no46amfKQdjY7AhLnmatHYXs8S4MTgeZYkWAn4edSGwwL3vkSiiGqSZQrmy5D3P5gBoqgvYP2fCUpBwbKTMTAkL",
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"tprv8ZgxMBicQKsPd3cbrKjE5GKKJLDEidhtzSSmPVtSPyoHQGL2LZw49yt9foZsN9BeiC5VqRaESUSDV2PS9w7zAVBSK6EQH3CZW9sMKxSKDwD",
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"tprv8iF7W37EHnVEtDr9EFeyFjQJFL6SfGby2AnZ2vQARxTQHQXy9tdzZvBBVp8a19e5vXhskczLkJ1AZjqgScqWL4FpmXVp8LLjiorcrFK63Sr",
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]
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TPUBS = [
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"tpubD6NzVbkrYhZ4YPAbyf6urxqqnmJF79PzQtyERAmvkSVS9fweCTjxjDh22Z5St9fGb1a5DUCv8G27nYupKP1Ctr1pkamJossoetzws1moNRn",
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"tpubD6NzVbkrYhZ4YMQC15JS7QcrsAyfGrGiykweqMmPxTkEVScu7vCZLNpPXW1XphHwzsgmqdHWDQAfucbM72EEB1ZEyfgZxYvkZjYVXx1xS9p",
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"tpubD6NzVbkrYhZ4YU9vM1s53UhD75UyJatx8EMzMZ3VUjR2FciNfLLkAw6a4pWACChzobTseNqdWk4G7ZdBqRDLtLSACKykTScmqibb1ZrCvJu",
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"tpubD6NzVbkrYhZ4XRMcMFMMFvzVt6jaDAtjZhD7JLwdPdMm9xa76DnxYYP7w9TZGJDVFkek3ArwVsuacheqqPog8TH5iBCX1wuig8PLXim4n9a",
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"tpubD6NzVbkrYhZ4WsqRzDmkL82SWcu42JzUvKWzrJHQ8EC2vEHRHkXj1De93sD3biLrKd8XGnamXURGjMbYavbszVDXpjXV2cGUERucLJkE6cy",
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"tpubDEFLeBkKTm8aiYkySz8hXAXPVnPSfxMi7Fxhg9sejUrkwJuRWvPdLEiXjTDbhGbjLKCZUDUUibLxTnK5UP1q7qYrSnPqnNe7M8mvAW1STcc",
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"tpubD6NzVbkrYhZ4WR99ygpiJvPMAJiwahjLgGywc5vJx2gUfKUfEPCrbKmQczDPJZmLcyZzRb5Ti6rfUb89S2WFyPH7FDtD6RFDA1hdgTEgEUL",
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]
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PUBKEYS = [
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"02aebf2d10b040eb936a6f02f44ee82f8b34f5c1ccb20ff3949c2b28206b7c1068",
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"030f64b922aee2fd597f104bc6cb3b670f1ca2c6c49b1071a1a6c010575d94fe5a",
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"02abe475b199ec3d62fa576faee16a334fdb86ffb26dce75becebaaedf328ac3fe",
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"0314f3dc33595b0d016bb522f6fe3a67680723d842c1b9b8ae6b59fdd8ab5cccb4",
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"025eba3305bd3c829e4e1551aac7358e4178832c739e4fc4729effe428de0398ab",
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"029ffbe722b147f3035c87cb1c60b9a5947dd49c774cc31e94773478711a929ac0",
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"0211c7b2e18b6fd330f322de087da62da92ae2ae3d0b7cec7e616479cce175f183",
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]
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P2WSH_MINISCRIPTS = [
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# One of two keys
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f"or_b(pk({TPUBS[0]}/*),s:pk({TPUBS[1]}/*))",
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# A script similar (same spending policy) to BOLT3's offered HTLC (with anchor outputs)
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f"or_d(pk({TPUBS[0]}/*),and_v(and_v(v:pk({TPUBS[1]}/*),or_c(pk({TPUBS[2]}/*),v:hash160(7f999c905d5e35cefd0a37673f746eb13fba3640))),older(1)))",
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# A Revault Unvault policy with the older() replaced by an after()
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f"andor(multi(2,{TPUBS[0]}/*,{TPUBS[1]}/*),and_v(v:multi(4,{PUBKEYS[0]},{PUBKEYS[1]},{PUBKEYS[2]},{PUBKEYS[3]}),after(424242)),thresh(4,pkh({TPUBS[2]}/*),a:pkh({TPUBS[3]}/*),a:pkh({TPUBS[4]}/*),a:pkh({TPUBS[5]}/*)))",
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# Liquid-like federated pegin with emergency recovery keys
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f"or_i(and_b(pk({PUBKEYS[0]}),a:and_b(pk({PUBKEYS[1]}),a:and_b(pk({PUBKEYS[2]}),a:and_b(pk({PUBKEYS[3]}),s:pk({PUBKEYS[4]}))))),and_v(v:thresh(2,pkh({TPUBS[0]}/*),a:pkh({PUBKEYS[5]}),a:pkh({PUBKEYS[6]})),older(4209713)))",
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]
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DESCS = [
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*[f"wsh({ms})" for ms in P2WSH_MINISCRIPTS],
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# A Taproot with one of the above scripts as the single script path.
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f"tr(4d54bb9928a0683b7e383de72943b214b0716f58aa54c7ba6bcea2328bc9c768,{P2WSH_MINISCRIPTS[0]})",
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# A Taproot with two script paths among the above scripts.
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f"tr(4d54bb9928a0683b7e383de72943b214b0716f58aa54c7ba6bcea2328bc9c768,{{{P2WSH_MINISCRIPTS[0]},{P2WSH_MINISCRIPTS[1]}}})",
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# A Taproot with three script paths among the above scripts.
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f"tr(4d54bb9928a0683b7e383de72943b214b0716f58aa54c7ba6bcea2328bc9c768,{{{{{P2WSH_MINISCRIPTS[0]},{P2WSH_MINISCRIPTS[1]}}},{P2WSH_MINISCRIPTS[2].replace('multi', 'multi_a')}}})",
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# A Taproot with all above scripts in its tree.
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f"tr(4d54bb9928a0683b7e383de72943b214b0716f58aa54c7ba6bcea2328bc9c768,{{{{{P2WSH_MINISCRIPTS[0]},{P2WSH_MINISCRIPTS[1]}}},{{{P2WSH_MINISCRIPTS[2].replace('multi', 'multi_a')},{P2WSH_MINISCRIPTS[3]}}}}})",
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]
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DESCS_PRIV = [
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# One of two keys, of which one private key is known
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{
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"desc": f"wsh(or_i(pk({TPRVS[0]}/*),pk({TPUBS[0]}/*)))",
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"sequence": None,
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"locktime": None,
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"sigs_count": 1,
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"stack_size": 3,
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},
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# A more complex policy, that can't be satisfied through the first branch (need for a preimage)
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{
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"desc": f"wsh(andor(ndv:older(2),and_v(v:pk({TPRVS[0]}),sha256(2a8ce30189b2ec3200b47aeb4feaac8fcad7c0ba170389729f4898b0b7933bcb)),and_v(v:pkh({TPRVS[1]}),pk({TPRVS[2]}/*))))",
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"sequence": 2,
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"locktime": None,
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"sigs_count": 3,
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"stack_size": 5,
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},
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# The same policy but we provide the preimage. This path will be chosen as it's a smaller witness.
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{
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"desc": f"wsh(andor(ndv:older(2),and_v(v:pk({TPRVS[0]}),sha256(61e33e9dbfefc45f6a194187684d278f789fd4d5e207a357e79971b6519a8b12)),and_v(v:pkh({TPRVS[1]}),pk({TPRVS[2]}/*))))",
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"sequence": 2,
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"locktime": None,
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"sigs_count": 3,
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"stack_size": 4,
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"sha256_preimages": {
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"61e33e9dbfefc45f6a194187684d278f789fd4d5e207a357e79971b6519a8b12": "e8774f330f5f330c23e8bbefc5595cb87009ddb7ac3b8deaaa8e9e41702d919c"
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},
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},
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# Signature with a relative timelock
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{
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"desc": f"wsh(and_v(v:older(2),pk({TPRVS[0]}/*)))",
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"sequence": 2,
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"locktime": None,
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"sigs_count": 1,
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"stack_size": 2,
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},
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# Signature with an absolute timelock
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{
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"desc": f"wsh(and_v(v:after(20),pk({TPRVS[0]}/*)))",
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"sequence": None,
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"locktime": 20,
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"sigs_count": 1,
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"stack_size": 2,
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},
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# Signature with both
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{
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"desc": f"wsh(and_v(v:older(4),and_v(v:after(30),pk({TPRVS[0]}/*))))",
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"sequence": 4,
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"locktime": 30,
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"sigs_count": 1,
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"stack_size": 2,
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},
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# We have one key on each branch; Core signs both (can't finalize)
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{
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"desc": f"wsh(c:andor(pk({TPRVS[0]}/*),pk_k({TPUBS[0]}),and_v(v:pk({TPRVS[1]}),pk_k({TPUBS[1]}))))",
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"sequence": None,
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"locktime": None,
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"sigs_count": 2,
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"stack_size": None,
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},
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# We have all the keys, wallet selects the timeout path to sign since it's smaller and sequence is set
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{
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"desc": f"wsh(andor(pk({TPRVS[0]}/*),pk({TPRVS[2]}),and_v(v:pk({TPRVS[1]}),older(10))))",
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"sequence": 10,
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"locktime": None,
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"sigs_count": 3,
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"stack_size": 3,
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},
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# We have all the keys, wallet selects the primary path to sign unconditionally since nsequence wasn't set to be valid for timeout path
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{
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"desc": f"wsh(andor(pk({TPRVS[0]}/*),pk({TPRVS[2]}),and_v(v:pkh({TPRVS[1]}),older(10))))",
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"sequence": None,
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"locktime": None,
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"sigs_count": 3,
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"stack_size": 3,
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},
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# Finalizes to the smallest valid witness, regardless of sequence
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{
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"desc": f"wsh(or_d(pk({TPRVS[0]}/*),and_v(v:pk({TPRVS[1]}),and_v(v:pk({TPRVS[2]}),older(10)))))",
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"sequence": 12,
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"locktime": None,
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"sigs_count": 3,
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"stack_size": 2,
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},
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# Liquid-like federated pegin with emergency recovery privkeys
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{
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"desc": f"wsh(or_i(and_b(pk({TPUBS[0]}/*),a:and_b(pk({TPUBS[1]}),a:and_b(pk({TPUBS[2]}),a:and_b(pk({TPUBS[3]}),s:pk({PUBKEYS[0]}))))),and_v(v:thresh(2,pkh({TPRVS[0]}),a:pkh({TPRVS[1]}),a:pkh({TPUBS[4]})),older(42))))",
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"sequence": 42,
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"locktime": None,
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"sigs_count": 2,
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"stack_size": 8,
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},
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# Each leaf needs two sigs. We've got one key on each. Will sign both but can't finalize.
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{
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"desc": f"tr({TPUBS[0]}/*,{{and_v(v:pk({TPRVS[0]}/*),pk({TPUBS[1]})),and_v(v:pk({TPRVS[1]}/*),pk({TPUBS[2]}))}})",
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"sequence": None,
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"locktime": None,
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"sigs_count": 2,
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"stack_size": None,
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},
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# The same but now the two leaves are identical. Will add a single sig that is valid for both. Can't finalize.
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{
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"desc": f"tr({TPUBS[0]}/*,{{and_v(v:pk({TPRVS[0]}/*),pk({TPUBS[1]})),and_v(v:pk({TPRVS[0]}/*),pk({TPUBS[1]}))}})",
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"sequence": None,
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"locktime": None,
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"sigs_count": 1,
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"stack_size": None,
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},
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# The same but we have the two necessary privkeys on one of the leaves. Also it uses a pubkey hash.
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{
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"desc": f"tr({TPUBS[0]}/*,{{and_v(v:pk({TPRVS[0]}/*),pk({TPUBS[1]})),and_v(v:pkh({TPRVS[1]}/*),pk({TPRVS[2]}))}})",
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"sequence": None,
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"locktime": None,
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"sigs_count": 3,
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"stack_size": 5,
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},
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# A key immediately or one of two keys after a timelock. If both paths are available it'll use the
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# non-timelocked path because it's a smaller witness.
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{
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"desc": f"tr({TPUBS[0]}/*,{{pk({TPRVS[0]}/*),and_v(v:older(42),multi_a(1,{TPRVS[1]},{TPRVS[2]}))}})",
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"sequence": 42,
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"locktime": None,
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"sigs_count": 3,
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"stack_size": 3,
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},
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# A key immediately or one of two keys after a timelock. If the "primary" key isn't available though it'll
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# use the timelocked path. Same remark for multi_a.
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{
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"desc": f"tr({TPUBS[0]}/*,{{pk({TPUBS[1]}/*),and_v(v:older(42),multi_a(1,{TPRVS[0]},{TPRVS[1]}))}})",
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"sequence": 42,
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"locktime": None,
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"sigs_count": 2,
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"stack_size": 4,
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},
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# Liquid-like federated pegin with emergency recovery privkeys, but in a Taproot.
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{
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"desc": f"tr({TPUBS[1]}/*,{{and_b(pk({TPUBS[2]}/*),a:and_b(pk({TPUBS[3]}),a:and_b(pk({TPUBS[4]}),a:and_b(pk({TPUBS[5]}),s:pk({PUBKEYS[0]}))))),and_v(v:thresh(2,pkh({TPRVS[0]}),a:pkh({TPRVS[1]}),a:pkh({TPUBS[6]})),older(42))}})",
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"sequence": 42,
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"locktime": None,
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"sigs_count": 2,
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"stack_size": 8,
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},
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]
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class WalletMiniscriptTest(BitcoinTestFramework):
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def add_options(self, parser):
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self.add_wallet_options(parser, legacy=False)
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def set_test_params(self):
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self.num_nodes = 1
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self.rpc_timeout = 180
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def skip_test_if_missing_module(self):
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self.skip_if_no_wallet()
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self.skip_if_no_sqlite()
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def watchonly_test(self, desc):
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self.log.info(f"Importing descriptor '{desc}'")
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desc = descsum_create(f"{desc}")
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assert self.ms_wo_wallet.importdescriptors(
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[
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{
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"desc": desc,
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"active": True,
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"range": 2,
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"next_index": 0,
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"timestamp": "now",
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}
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]
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)[0]["success"]
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self.log.info("Testing we derive new addresses for it")
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addr_type = "bech32m" if desc.startswith("tr(") else "bech32"
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assert_equal(
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self.ms_wo_wallet.getnewaddress(address_type=addr_type),
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self.funder.deriveaddresses(desc, 0)[0],
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)
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assert_equal(
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self.ms_wo_wallet.getnewaddress(address_type=addr_type),
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self.funder.deriveaddresses(desc, 1)[1],
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)
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self.log.info("Testing we detect funds sent to one of them")
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addr = self.ms_wo_wallet.getnewaddress()
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txid = self.funder.sendtoaddress(addr, 0.01)
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self.wait_until(
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lambda: len(self.ms_wo_wallet.listunspent(minconf=0, addresses=[addr])) == 1
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)
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utxo = self.ms_wo_wallet.listunspent(minconf=0, addresses=[addr])[0]
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assert utxo["txid"] == txid and utxo["solvable"]
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def signing_test(
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self, desc, sequence, locktime, sigs_count, stack_size, sha256_preimages
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):
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self.log.info(f"Importing private Miniscript descriptor '{desc}'")
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is_taproot = desc.startswith("tr(")
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desc = descsum_create(desc)
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res = self.ms_sig_wallet.importdescriptors(
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[
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{
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"desc": desc,
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"active": True,
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"range": 0,
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"next_index": 0,
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"timestamp": "now",
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}
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]
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)
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assert res[0]["success"], res
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self.log.info("Generating an address for it and testing it detects funds")
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addr_type = "bech32m" if is_taproot else "bech32"
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addr = self.ms_sig_wallet.getnewaddress(address_type=addr_type)
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txid = self.funder.sendtoaddress(addr, 0.01)
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self.wait_until(lambda: txid in self.funder.getrawmempool())
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self.funder.generatetoaddress(1, self.funder.getnewaddress())
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utxo = self.ms_sig_wallet.listunspent(addresses=[addr])[0]
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assert txid == utxo["txid"] and utxo["solvable"]
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self.log.info("Creating a transaction spending these funds")
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dest_addr = self.funder.getnewaddress()
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seq = sequence if sequence is not None else 0xFFFFFFFF - 2
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lt = locktime if locktime is not None else 0
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psbt = self.ms_sig_wallet.createpsbt(
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[
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{
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"txid": txid,
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"vout": utxo["vout"],
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"sequence": seq,
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}
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],
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[{dest_addr: 0.009}],
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lt,
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)
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self.log.info("Signing it and checking the satisfaction.")
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if sha256_preimages is not None:
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psbt = PSBT.from_base64(psbt)
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for (h, preimage) in sha256_preimages.items():
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k = PSBT_IN_SHA256.to_bytes(1, "big") + bytes.fromhex(h)
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psbt.i[0].map[k] = bytes.fromhex(preimage)
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psbt = psbt.to_base64()
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res = self.ms_sig_wallet.walletprocesspsbt(psbt=psbt, finalize=False)
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psbtin = self.nodes[0].rpc.decodepsbt(res["psbt"])["inputs"][0]
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sigs_field_name = "taproot_script_path_sigs" if is_taproot else "partial_signatures"
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assert len(psbtin[sigs_field_name]) == sigs_count
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res = self.ms_sig_wallet.finalizepsbt(res["psbt"])
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assert res["complete"] == (stack_size is not None)
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if stack_size is not None:
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txin = self.nodes[0].rpc.decoderawtransaction(res["hex"])["vin"][0]
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assert len(txin["txinwitness"]) == stack_size, txin["txinwitness"]
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self.log.info("Broadcasting the transaction.")
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# If necessary, satisfy a relative timelock
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if sequence is not None:
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self.funder.generatetoaddress(sequence, self.funder.getnewaddress())
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# If necessary, satisfy an absolute timelock
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height = self.funder.getblockcount()
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if locktime is not None and height < locktime:
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self.funder.generatetoaddress(
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locktime - height, self.funder.getnewaddress()
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)
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self.ms_sig_wallet.sendrawtransaction(res["hex"])
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def run_test(self):
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|
self.log.info("Making a descriptor wallet")
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|
self.funder = self.nodes[0].get_wallet_rpc(self.default_wallet_name)
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|
self.nodes[0].createwallet(
|
|
wallet_name="ms_wo", descriptors=True, disable_private_keys=True
|
|
)
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|
self.ms_wo_wallet = self.nodes[0].get_wallet_rpc("ms_wo")
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|
self.nodes[0].createwallet(wallet_name="ms_sig", descriptors=True)
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|
self.ms_sig_wallet = self.nodes[0].get_wallet_rpc("ms_sig")
|
|
|
|
# Sanity check we wouldn't let an insane Miniscript descriptor in
|
|
res = self.ms_wo_wallet.importdescriptors(
|
|
[
|
|
{
|
|
"desc": descsum_create(
|
|
"wsh(and_b(ripemd160(1fd9b55a054a2b3f658d97e6b84cf3ee00be429a),a:1))"
|
|
),
|
|
"active": False,
|
|
"timestamp": "now",
|
|
}
|
|
]
|
|
)[0]
|
|
assert not res["success"]
|
|
assert "is not sane: witnesses without signature exist" in res["error"]["message"]
|
|
|
|
# Sanity check we wouldn't let an unspendable Miniscript descriptor in
|
|
res = self.ms_wo_wallet.importdescriptors(
|
|
[
|
|
{
|
|
"desc": descsum_create("wsh(0)"),
|
|
"active": False,
|
|
"timestamp": "now",
|
|
}
|
|
]
|
|
)[0]
|
|
assert not res["success"] and "is not satisfiable" in res["error"]["message"]
|
|
|
|
# Test we can track any type of Miniscript
|
|
for desc in DESCS:
|
|
self.watchonly_test(desc)
|
|
|
|
# Test we can sign for any Miniscript.
|
|
for desc in DESCS_PRIV:
|
|
self.signing_test(
|
|
desc["desc"],
|
|
desc["sequence"],
|
|
desc["locktime"],
|
|
desc["sigs_count"],
|
|
desc["stack_size"],
|
|
desc.get("sha256_preimages"),
|
|
)
|
|
|
|
# Test we can sign for a max-size TapMiniscript. Recompute the maximum accepted size
|
|
# for a TapMiniscript (see cpp file for details). Then pad a simple pubkey check up
|
|
# to the maximum size. Make sure we can import and spend this script.
|
|
leeway_weight = (4 + 4 + 1 + 36 + 4 + 1 + 1 + 8 + 1 + 1 + 33) * 4 + 2
|
|
max_tapmini_size = 400_000 - 3 - (1 + 65) * 1_000 - 3 - (33 + 32 * 128) - leeway_weight - 5
|
|
padding = max_tapmini_size - 33 - 1
|
|
ms = f"pk({TPRVS[0]}/*)"
|
|
ms = "n" * padding + ":" + ms
|
|
desc = f"tr({PUBKEYS[0]},{ms})"
|
|
self.signing_test(desc, None, None, 1, 3, None)
|
|
# This was really the maximum size, one more byte and we can't import it.
|
|
ms = "n" + ms
|
|
desc = f"tr({PUBKEYS[0]},{ms})"
|
|
res = self.ms_wo_wallet.importdescriptors(
|
|
[
|
|
{
|
|
"desc": descsum_create(desc),
|
|
"active": False,
|
|
"timestamp": "now",
|
|
}
|
|
]
|
|
)[0]
|
|
assert not res["success"]
|
|
assert "is not a valid descriptor function" in res["error"]["message"]
|
|
|
|
|
|
if __name__ == "__main__":
|
|
WalletMiniscriptTest().main()
|