public override byte[] ReadBytes(int count)
{
byte[] bytes = base.ReadBytes(count);
if (autoAlignOn)
{
bytesSinceAlignStart += (uint)bytes.Length;
}
if (checksumCalculator?.CalculateForDecryptedData == false)
{
checksumCalculator?.AddBytes(bytes);
}
if (xorKey.HasValue)
{
for (int i = 0; i < count; i++)
{
bytes[i] = (byte)(bytes[i] ^ xorKey.Value);
}
}
if (checksumCalculator?.CalculateForDecryptedData == true)
{
checksumCalculator?.AddBytes(bytes);
}
return(bytes);
}
public override void Write(byte[] buffer)
{
if (buffer == null)
{
return;
}
var data = buffer;
if (checksumCalculator?.CalculateForDecryptedData == true)
{
checksumCalculator?.AddBytes(data);
}
if (xorKey.HasValue)
{
// Avoid changing data in array, so create a copy
data = new byte[buffer.Length];
Array.Copy(buffer, 0, data, 0, buffer.Length);
for (int i = 0; i < data.Length; i++)
{
data[i] = (byte)(data[i] ^ xorKey.Value);
}
}
if (checksumCalculator?.CalculateForDecryptedData == false)
{
checksumCalculator?.AddBytes(data);
}
base.Write(data);
if (autoAlignOn)
{
bytesSinceAlignStart += (uint)data.Length;
}
}