#!/usr/bin/env python3 # Copyright (c) 2015-2022 The Bitcoin Core developers # Distributed under the MIT software license, see the accompanying # file COPYING or http://www.opensource.org/licenses/mit-license.php. """Test transaction signing using the signrawtransactionwithkey RPC.""" from test_framework.messages import ( COIN, ) from test_framework.address import ( address_to_scriptpubkey, p2a, script_to_p2sh, ) from test_framework.test_framework import BitcoinTestFramework from test_framework.util import ( assert_equal, assert_raises_rpc_error, ) from test_framework.script_util import ( key_to_p2pk_script, key_to_p2pkh_script, script_to_p2sh_p2wsh_script, script_to_p2wsh_script, ) from test_framework.wallet import ( getnewdestination, MiniWallet, ) from test_framework.wallet_util import ( generate_keypair, ) from decimal import ( Decimal, ) INPUTS = [ # Valid pay-to-pubkey scripts {'txid': '9b907ef1e3c26fc71fe4a4b3580bc75264112f95050014157059c736f0202e71', 'vout': 0, 'scriptPubKey': '76a91460baa0f494b38ce3c940dea67f3804dc52d1fb9488ac'}, {'txid': '83a4f6a6b73660e13ee6cb3c6063fa3759c50c9b7521d0536022961898f4fb02', 'vout': 0, 'scriptPubKey': '76a914669b857c03a5ed269d5d85a1ffac9ed5d663072788ac'}, ] OUTPUTS = {'mpLQjfK79b7CCV4VMJWEWAj5Mpx8Up5zxB': 0.1} class SignRawTransactionWithKeyTest(BitcoinTestFramework): def set_test_params(self): self.num_nodes = 1 def send_to_address(self, addr, amount): script_pub_key = address_to_scriptpubkey(addr) tx = self.wallet.send_to(from_node=self.nodes[0], scriptPubKey=script_pub_key, amount=int(amount * COIN)) return tx["txid"], tx["sent_vout"] def assert_signing_completed_successfully(self, signed_tx): assert 'errors' not in signed_tx assert 'complete' in signed_tx assert_equal(signed_tx['complete'], True) def successful_signing_test(self): """Create and sign a valid raw transaction with one input. Expected results: 1) The transaction has a complete set of signatures 2) No script verification error occurred""" self.log.info("Test valid raw transaction with one input") privKeys = ['cUeKHd5orzT3mz8P9pxyREHfsWtVfgsfDjiZZBcjUBAaGk1BTj7N', 'cVKpPfVKSJxKqVpE9awvXNWuLHCa5j5tiE7K6zbUSptFpTEtiFrA'] rawTx = self.nodes[0].createrawtransaction(INPUTS, OUTPUTS) rawTxSigned = self.nodes[0].signrawtransactionwithkey(rawTx, privKeys, INPUTS) self.assert_signing_completed_successfully(rawTxSigned) def witness_script_test(self): self.log.info("Test signing transaction to P2SH-P2WSH addresses without wallet") # Create a new P2SH-P2WSH 1-of-1 multisig address: embedded_privkey, embedded_pubkey = generate_keypair(wif=True) p2sh_p2wsh_address = self.nodes[0].createmultisig(1, [embedded_pubkey.hex()], "p2sh-segwit") # send transaction to P2SH-P2WSH 1-of-1 multisig address self.send_to_address(p2sh_p2wsh_address["address"], 49.999) self.generate(self.nodes[0], 1) # Get the UTXO info from scantxoutset unspent_output = self.nodes[0].scantxoutset('start', [p2sh_p2wsh_address['descriptor']])['unspents'][0] spk = script_to_p2sh_p2wsh_script(p2sh_p2wsh_address['redeemScript']).hex() unspent_output['witnessScript'] = p2sh_p2wsh_address['redeemScript'] unspent_output['redeemScript'] = script_to_p2wsh_script(unspent_output['witnessScript']).hex() assert_equal(spk, unspent_output['scriptPubKey']) # Now create and sign a transaction spending that output on node[0], which doesn't know the scripts or keys spending_tx = self.nodes[0].createrawtransaction([unspent_output], {getnewdestination()[2]: Decimal("49.998")}) spending_tx_signed = self.nodes[0].signrawtransactionwithkey(spending_tx, [embedded_privkey], [unspent_output]) self.assert_signing_completed_successfully(spending_tx_signed) # Now test with P2PKH and P2PK scripts as the witnessScript for tx_type in ['P2PKH', 'P2PK']: # these tests are order-independent self.verify_txn_with_witness_script(tx_type) def keyless_signing_test(self): self.log.info("Test that keyless 'signing' of pay-to-anchor input succeeds") [txid, vout] = self.send_to_address(p2a(), 49.999) spending_tx = self.nodes[0].createrawtransaction( [{"txid": txid, "vout": vout}], [{getnewdestination()[2]: Decimal("49.998")}]) spending_tx_signed = self.nodes[0].signrawtransactionwithkey(spending_tx, [], []) self.assert_signing_completed_successfully(spending_tx_signed) assert self.nodes[0].testmempoolaccept([spending_tx_signed["hex"]])[0]["allowed"] # 'signing' a P2A prevout is a no-op, so signed and unsigned txs shouldn't differ assert_equal(spending_tx, spending_tx_signed["hex"]) def verify_txn_with_witness_script(self, tx_type): self.log.info("Test with a {} script as the witnessScript".format(tx_type)) embedded_privkey, embedded_pubkey = generate_keypair(wif=True) witness_script = { 'P2PKH': key_to_p2pkh_script(embedded_pubkey).hex(), 'P2PK': key_to_p2pk_script(embedded_pubkey).hex() }.get(tx_type, "Invalid tx_type") redeem_script = script_to_p2wsh_script(witness_script).hex() addr = script_to_p2sh(redeem_script) script_pub_key = address_to_scriptpubkey(addr).hex() # Fund that address [txid, vout] = self.send_to_address(addr, 10) # Now create and sign a transaction spending that output on node[0], which doesn't know the scripts or keys spending_tx = self.nodes[0].createrawtransaction([{'txid': txid, 'vout': vout}], {getnewdestination()[2]: Decimal("9.999")}) spending_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}]) self.assert_signing_completed_successfully(spending_tx_signed) self.nodes[0].sendrawtransaction(spending_tx_signed['hex']) def invalid_sighashtype_test(self): self.log.info("Test signing transaction with invalid sighashtype") tx = self.nodes[0].createrawtransaction(INPUTS, OUTPUTS) privkeys = [self.nodes[0].get_deterministic_priv_key().key] assert_raises_rpc_error(-8, "'all' is not a valid sighash parameter.", self.nodes[0].signrawtransactionwithkey, tx, privkeys, sighashtype="all") def invalid_private_key_and_tx(self): self.log.info("Test signing transaction with an invalid private key") tx = self.nodes[0].createrawtransaction(INPUTS, OUTPUTS) privkeys = ["123"] assert_raises_rpc_error(-5, "Invalid private key", self.nodes[0].signrawtransactionwithkey, tx, privkeys) self.log.info("Test signing transaction with an invalid tx hex") privkeys = [self.nodes[0].get_deterministic_priv_key().key] assert_raises_rpc_error(-22, "TX decode failed. Make sure the tx has at least one input.", self.nodes[0].signrawtransactionwithkey, tx + "00", privkeys) def run_test(self): self.wallet = MiniWallet(self.nodes[0]) self.successful_signing_test() self.witness_script_test() self.keyless_signing_test() self.invalid_sighashtype_test() self.invalid_private_key_and_tx() if __name__ == '__main__': SignRawTransactionWithKeyTest(__file__).main()