hash-wallet/cw_bitcoin/lib/utils.dart

import 'dart:typed_data';
import 'package:bitcoin_base/bitcoin_base.dart';
import 'package:blockchain_utils/blockchain_utils.dart';

ECPrivate generateECPrivate({
  required Bip32Slip10Secp256k1 hd,
  required BasedUtxoNetwork network,
  required int index,
}) =>
    ECPrivate(hd.childKey(Bip32KeyIndex(index)).privateKey);

String generateP2WPKHAddress({
  required Bip32Slip10Secp256k1 hd,
  required BasedUtxoNetwork network,
  required int index,
}) =>
    ECPublic.fromBip32(hd.childKey(Bip32KeyIndex(index)).publicKey)
        .toP2wpkhAddress()
        .toAddress(network);

String generateP2SHAddress({
  required Bip32Slip10Secp256k1 hd,
  required BasedUtxoNetwork network,
  required int index,
}) =>
    ECPublic.fromBip32(hd.childKey(Bip32KeyIndex(index)).publicKey)
        .toP2wpkhInP2sh()
        .toAddress(network);

String generateP2WSHAddress({
  required Bip32Slip10Secp256k1 hd,
  required BasedUtxoNetwork network,
  required int index,
}) =>
    ECPublic.fromBip32(hd.childKey(Bip32KeyIndex(index)).publicKey)
        .toP2wshAddress()
        .toAddress(network);

String generateP2PKHAddress({
  required Bip32Slip10Secp256k1 hd,
  required BasedUtxoNetwork network,
  required int index,
}) =>
    ECPublic.fromBip32(hd.childKey(Bip32KeyIndex(index)).publicKey)
        .toP2pkhAddress()
        .toAddress(network);

String generateP2TRAddress({
  required Bip32Slip10Secp256k1 hd,
  required BasedUtxoNetwork network,
  required int index,
}) =>
    ECPublic.fromBip32(hd.childKey(Bip32KeyIndex(index)).publicKey)
        .toTaprootAddress()
        .toAddress(network);