UnifiedSpendingKey.fromSeed constructor

Implementation

factory UnifiedSpendingKey.fromSeed({
  required List<int> seedBytes,
  required ZCashNetwork network,
  required ZCryptoContext context,
  Bip32KeyIndex? accountIndex,
}) {
  final config = ZcashConf().fromNetwork(network);

  List<Bip32KeyIndex> accountIndexes = [];
  if (accountIndex != null) {
    accountIndexes.add(accountIndex);
  } else {
    accountIndexes = Bip32PathParser.parse(config.defPath).elems;
  }
  final zip32Path =
      Bip32Path(
        elems: [
          Bip32KeyIndex.hardenIndex(32),
          Bip32KeyIndex.hardenIndex(config.coinIdx),
          ...accountIndexes,
        ],
      ).toPath();
  final tPath = Bip32Path(
    elems: [
      Bip44Const.purpose,
      Bip32KeyIndex.hardenIndex(config.coinIdx),
      ...accountIndexes,
    ],
  );
  Bip32Slip10Secp256k1 transparent = Bip32Slip10Secp256k1.fromSeed(seedBytes);
  transparent = transparent.derivePath(tPath.toPath());
  Zip32Sapling sapling = Zip32Sapling.fromSeed(
    seedBytes,
  ).derivePath(zip32Path, context);
  Zip32Orchard orchard = Zip32Orchard.fromSeed(
    seedBytes,
  ).derivePath(zip32Path, context);
  return UnifiedSpendingKey._(
    sapling: sapling,
    orchard: orchard,
    transparent: transparent,
    context: context,
    config: config,
  );
}