public async Task WriteChecksAndEmbeddedDataAsync()
{
OutData.Position = 0;
await OutData.WriteAsync(BitConverter.GetBytes(MagicNumber), 0, 4);
await OutData.WriteAsync(BitConverter.GetBytes(DataVersionNumber), 0, 2);
await OutData.WriteAsync(BitConverter.GetBytes(MinCompatibleDataVersionNumber), 0, 2);
await OutData.WriteAsync(IV, 0, 16);
await OutData.WriteAsync(Salt, 0, 32);
var kcv = KeyCheckValueValidator.GenerateKeyCheckValue(Key);
OutData.Write(kcv, 0, 19);
long currentPosition = OutData.Position;
var mac = MessageAuthenticationCodeValidator.CalculateMessageAuthenticationCode(Key, OutData, HeaderSize);
Debug.Assert(currentPosition == OutData.Position, "Stream position is changed after generating MAC");
await OutData.WriteAsync(mac, 0, 48);
OutData.Position = 0;
}
public void WriteEmptyHeaderData()
{
byte[] data = new byte[HeaderSize];
OutData.Write(data, 0, data.Length);
}