computeChecksum static method

List<int> computeChecksum(String hrp, List<int> data, [ Bech32Encodings encoding = Bech32Encodings.bech32 ])

Compute the checksum from the specified HRP and data.

Implementation

static List<int> computeChecksum(
  String hrp,
  List<int> data, [
  Bech32Encodings encoding = Bech32Encodings.bech32,
]) {
  final values = [...hrpExpand(hrp), ...data];
  final polymod =
      (polyMod([...values, 0, 0, 0, 0, 0, 0]) ^
          Bech32Const.encodingChecksumConst[encoding]!);

  return [
    for (var i = 0; i < Bech32Const.checksumStrLen; i++)
      (polymod >> (5 * (5 - i))) & 0x1f,
  ];
}