def bob_swap_tx(txid_to_spend, utxo_index, amount_to_send, hash_of_secret): txout_script = coinExchangeScript(bob_public_key_BCY, alice_public_key_BCY, hash_of_secret) txout = create_txout(amount_to_send, txout_script) txin_scriptPubKey = P2PKH_scriptPubKey(bob_address_BCY) txin = create_txin(txid_to_spend, utxo_index) txin_scriptSig = P2PKH_scriptSig(txin, txout, txin_scriptPubKey, bob_secret_key_BCY, bob_public_key_BCY) tx = create_signed_transaction(txin, txout, txin_scriptPubKey, txin_scriptSig) print('Bob swap tx (BCY) created successfully!') return tx, txout_script
def redeem_swap(amount_to_send, alice_swap_tx, txin_scriptPubKey, alice_secret_x): txout_script = P2PKH_scriptPubKey(bob_address_BTC) txout = create_txout(amount_to_send, txout_script) txin = create_txin(b2x(alice_swap_tx.GetTxid()), 0) tx = CMutableTransaction([txin], [txout]) bob_signature_BTC = sign_BTC(tx, txin_scriptPubKey) txin_scriptSig = coinExchangeScriptSig1(bob_signature_BTC, alice_secret_x) txin.scriptSig = CScript(txin_scriptSig) VerifyScript(txin.scriptSig, CScript(txin_scriptPubKey), tx, 0, (SCRIPT_VERIFY_P2SH, )) print('Bob redeem from swap tx (BTC) created successfully!') return tx
def return_coins_tx(amount_to_send, last_tx, lock_time): txin = create_txin(b2x(last_tx.GetTxid()), 0) txout = create_txout(amount_to_send, P2PKH_scriptPubKey(bob_address_BCY)) tx = CMutableTransaction([txin], [txout], nLockTime=lock_time) return tx