public static byte[] XTS(byte[] Key1, byte[] Key2, int SectorSize, byte[] Data, ulong Sector, bool Encrypt)
{
byte[] TransformedBytes, BlockData;
Xts XTS128 = XtsAes128.Create(Key1, Key2);
int Blocks;
var MemStrm = new MemoryStream();
var Writer = new BinaryWriter(MemStrm);
XtsCryptoTransform CryptoTransform;
if (Encrypt)
{
CryptoTransform = XTS128.CreateEncryptor();
}
else
{
CryptoTransform = XTS128.CreateDecryptor();
}
BlockData = new byte[SectorSize];
Blocks = Data.Length / SectorSize;
for (int i = 0; i < Blocks; i++)
{
CryptoTransform.TransformBlock(Data, i * SectorSize, SectorSize, BlockData, 0, Sector++);
Writer.Write(BlockData);
}
TransformedBytes = MemStrm.ToArray();
return(TransformedBytes);
}
public XtsStream(Stream baseStream, Xts xts, int sectorSize, long offset)
: base(new XtsSectorStream(baseStream, xts, sectorSize, offset), true)
{
}
public XtsStream(Stream baseStream, Xts xts, int sectorSize)
: base(new XtsSectorStream(baseStream, xts, sectorSize), true)
{
}
public XtsStream(Stream baseStream, Xts xts)
: this(baseStream, xts, XtsSectorStream.DEFAULT_SECTOR_SIZE)
{
}
public XtsSectorStream(Stream baseStream, Xts xts, int sectorSize, long offset)
: base(baseStream, sectorSize, offset)
{
_xts = xts;
_tempBuffer = new byte[sectorSize];
}
public XtsSectorStream(Stream baseStream, Xts xts, int sectorSize)
: this(baseStream, xts, sectorSize, 0)
{
}