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1#!/usr/bin/env python32# Copyright (c) 2015-present The Bitcoin Core developers3# Distributed under the MIT software license, see the accompanying4# file COPYING or http://www.opensource.org/licenses/mit-license.php.5"""Test transaction signing using the signrawtransactionwithkey RPC."""7from test_framework.messages import (8COIN,9)10from test_framework.address import (11address_to_scriptpubkey,12p2a,13script_to_p2sh,14)15from test_framework.test_framework import BitcoinTestFramework16from test_framework.util import (17assert_equal,18assert_raises_rpc_error,19)20from test_framework.script_util import (21key_to_p2pk_script,22key_to_p2pkh_script,23script_to_p2sh_p2wsh_script,24script_to_p2wsh_script,25)26from test_framework.wallet import (27getnewdestination,28MiniWallet,29)30from test_framework.wallet_util import (31generate_keypair,32)34from decimal import (35Decimal,36)38INPUTS = [39# Valid pay-to-pubkey scripts40{'txid': '9b907ef1e3c26fc71fe4a4b3580bc75264112f95050014157059c736f0202e71', 'vout': 0,41'scriptPubKey': '76a91460baa0f494b38ce3c940dea67f3804dc52d1fb9488ac'},42{'txid': '83a4f6a6b73660e13ee6cb3c6063fa3759c50c9b7521d0536022961898f4fb02', 'vout': 0,43'scriptPubKey': '76a914669b857c03a5ed269d5d85a1ffac9ed5d663072788ac'},44]45OUTPUTS = {'mpLQjfK79b7CCV4VMJWEWAj5Mpx8Up5zxB': 0.1}47class SignRawTransactionWithKeyTest(BitcoinTestFramework):48def set_test_params(self):49self.num_nodes = 151def send_to_address(self, addr, amount):52script_pub_key = address_to_scriptpubkey(addr)53tx = self.wallet.send_to(from_node=self.nodes[0], scriptPubKey=script_pub_key, amount=int(amount * COIN))54return tx["txid"], tx["sent_vout"]56def assert_signing_completed_successfully(self, signed_tx):57assert 'errors' not in signed_tx58assert 'complete' in signed_tx59assert_equal(signed_tx['complete'], True)61def successful_signing_test(self):62"""Create and sign a valid raw transaction with one input.64Expected results:661) The transaction has a complete set of signatures672) No script verification error occurred"""68self.log.info("Test valid raw transaction with one input")69privKeys = ['cUeKHd5orzT3mz8P9pxyREHfsWtVfgsfDjiZZBcjUBAaGk1BTj7N', 'cVKpPfVKSJxKqVpE9awvXNWuLHCa5j5tiE7K6zbUSptFpTEtiFrA']70rawTx = self.nodes[0].createrawtransaction(INPUTS, OUTPUTS)71rawTxSigned = self.nodes[0].signrawtransactionwithkey(rawTx, privKeys, INPUTS)73self.assert_signing_completed_successfully(rawTxSigned)75def witness_script_test(self):76self.log.info("Test signing transaction to P2SH-P2WSH addresses without wallet")77# Create a new P2SH-P2WSH 1-of-1 multisig address:78embedded_privkey, embedded_pubkey = generate_keypair(wif=True)79p2sh_p2wsh_address = self.nodes[0].createmultisig(1, [embedded_pubkey.hex()], "p2sh-segwit")80# send transaction to P2SH-P2WSH 1-of-1 multisig address81self.send_to_address(p2sh_p2wsh_address["address"], 49.999)82self.generate(self.nodes[0], 1)83# Get the UTXO info from scantxoutset84unspent_output = self.nodes[0].scantxoutset('start', [p2sh_p2wsh_address['descriptor']])['unspents'][0]85spk = script_to_p2sh_p2wsh_script(p2sh_p2wsh_address['redeemScript']).hex()86unspent_output['witnessScript'] = p2sh_p2wsh_address['redeemScript']87unspent_output['redeemScript'] = script_to_p2wsh_script(unspent_output['witnessScript']).hex()88assert_equal(spk, unspent_output['scriptPubKey'])89# Now create and sign a transaction spending that output on node[0], which doesn't know the scripts or keys90spending_tx = self.nodes[0].createrawtransaction([unspent_output], {getnewdestination()[2]: Decimal("49.998")})91spending_tx_signed = self.nodes[0].signrawtransactionwithkey(spending_tx, [embedded_privkey], [unspent_output])92self.assert_signing_completed_successfully(spending_tx_signed)94# Now test with P2PKH and P2PK scripts as the witnessScript95for tx_type in ['P2PKH', 'P2PK']: # these tests are order-independent96self.verify_txn_with_witness_script(tx_type)98def keyless_signing_test(self):99self.log.info("Test that keyless 'signing' of pay-to-anchor input succeeds")100[txid, vout] = self.send_to_address(p2a(), 49.999)101spending_tx = self.nodes[0].createrawtransaction(102[{"txid": txid, "vout": vout}],103[{getnewdestination()[2]: Decimal("49.998")}])104spending_tx_signed = self.nodes[0].signrawtransactionwithkey(spending_tx, [], [])105self.assert_signing_completed_successfully(spending_tx_signed)106assert self.nodes[0].testmempoolaccept([spending_tx_signed["hex"]])[0]["allowed"]107# 'signing' a P2A prevout is a no-op, so signed and unsigned txs shouldn't differ108assert_equal(spending_tx, spending_tx_signed["hex"])110def verify_txn_with_witness_script(self, tx_type):111self.log.info("Test with a {} script as the witnessScript".format(tx_type))112embedded_privkey, embedded_pubkey = generate_keypair(wif=True)113witness_script = {114'P2PKH': key_to_p2pkh_script(embedded_pubkey).hex(),115'P2PK': key_to_p2pk_script(embedded_pubkey).hex()116}.get(tx_type, "Invalid tx_type")117redeem_script = script_to_p2wsh_script(witness_script).hex()118addr = script_to_p2sh(redeem_script)119script_pub_key = address_to_scriptpubkey(addr).hex()120# Fund that address121[txid, vout] = self.send_to_address(addr, 10)122# Now create and sign a transaction spending that output on node[0], which doesn't know the scripts or keys123spending_tx = self.nodes[0].createrawtransaction([{'txid': txid, 'vout': vout}], {getnewdestination()[2]: Decimal("9.999")})124spending_tx_signed = self.nodes[0].signrawtransactionwithkey(spending_tx, [embedded_privkey], [{'txid': txid, 'vout': vout, 'scriptPubKey': script_pub_key, 'redeemScript': redeem_script, 'witnessScript': witness_script, 'amount': 10}])125self.assert_signing_completed_successfully(spending_tx_signed)126self.nodes[0].sendrawtransaction(spending_tx_signed['hex'])128def invalid_sighashtype_test(self):129self.log.info("Test signing transaction with invalid sighashtype")130tx = self.nodes[0].createrawtransaction(INPUTS, OUTPUTS)131privkeys = [self.nodes[0].get_deterministic_priv_key().key]132assert_raises_rpc_error(-8, "'all' is not a valid sighash parameter.", self.nodes[0].signrawtransactionwithkey, tx, privkeys, sighashtype="all")134def invalid_private_key_and_tx(self):135self.log.info("Test signing transaction with an invalid private key")136tx = self.nodes[0].createrawtransaction(INPUTS, OUTPUTS)137privkeys = ["123"]138assert_raises_rpc_error(-5, "Invalid private key", self.nodes[0].signrawtransactionwithkey, tx, privkeys)139self.log.info("Test signing transaction with an invalid tx hex")140privkeys = [self.nodes[0].get_deterministic_priv_key().key]141assert_raises_rpc_error(-22, "TX decode failed. Make sure the tx has at least one input.", self.nodes[0].signrawtransactionwithkey, tx + "00", privkeys)143def run_test(self):144self.wallet = MiniWallet(self.nodes[0])145self.successful_signing_test()146self.witness_script_test()147self.keyless_signing_test()148self.invalid_sighashtype_test()149self.invalid_private_key_and_tx()152if __name__ == '__main__':153SignRawTransactionWithKeyTest(__file__).main()
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