update method

@override SerializableHash<HashState> update(List<int> data, { int? length, })

Updates the hash computation with the given data.

Parameters:

• data: Containing the data to be hashed.

Implementation

@override
SerializableHash update(List<int> data, {int? length}) {
  if (_finished) {
    throw CryptoException.failed(
      "SHA512.update",
      reason: "State was finished.",
    );
  }
  int dataPos = 0;
  int dataLength = length ?? data.length;
  _bytesHashed += dataLength;

  if (_bufferLength > 0) {
    while (_bufferLength < getBlockSize && dataLength > 0) {
      _buffer[_bufferLength++] = data[dataPos++] & BinaryOps.mask8;
      dataLength--;
    }

    if (_bufferLength == getBlockSize) {
      _hashBlocks(
        _tempHi,
        _tempLo,
        _stateHi,
        _stateLo,
        _buffer,
        0,
        getBlockSize,
      );
      _bufferLength = 0;
    }
  }

  if (dataLength >= getBlockSize) {
    dataPos = _hashBlocks(
      _tempHi,
      _tempLo,
      _stateHi,
      _stateLo,
      data,
      dataPos,
      dataLength,
    );
    dataLength %= getBlockSize;
  }

  while (dataLength > 0) {
    _buffer[_bufferLength++] = data[dataPos++] & BinaryOps.mask8;
    dataLength--;
  }

  return this;
}