bool xWriteHeader(RSAParams xParams)
{
try
{
DJsIO xio = new DJsIO(true);
xHeaderData.Write(ref xio);
xio.SetLength(0xB000);
xio.Position = 0x340;
xio.Write((uint)0xAD0E);
xio.Position = 0x379;
xio.Write(new byte[] { 0x24, 5, 5, 0x11 });
IO.Position = 0x37D;
xio.Write(IO.ReadBytes(20));
xio.Write((byte)((xIsShifted ? 1 : 0) << 6));
xio.WriteUInt24(xBlockCount);
xio.Write(xDeviation);
xio.Flush();
xio.Position = 0x344;
byte[] xHash = SHA1Quick.ComputeHash(xio.ReadBytes((int)(xio.Length - 0x344)));
xio.Position = 0x32C;
xio.Write(xHash);
xio.Flush();
xio.Position = 0x22C;
xHash = SHA1Quick.ComputeHash(xio.ReadBytes(0x118));
xio.Position = 4;
if (xParams.Type == PackageMagic.CON)
{
xio.Write(xParams.Certificate);
xio.Write(ScrambleMethods.StockScramble(RSAQuick.SignatureGenerate(xParams.RSAKeys, xHash), true));
}
else
{
xio.Write(ScrambleMethods.DevScramble(RSAQuick.SignatureGenerate(xParams.RSAKeys, xHash)));
xio.Write(new byte[0x128]);
}
xio.IsBigEndian = true;
xio.Position = 0;
xio.Write(((uint)xParams.Type));
xio.Flush();
xHeaderData.xMagic = xParams.Type;
IO.Position = 0;
IO.Write(xio.ReadStream());
IO.Flush();
xio.Dispose();
return(true);
}
catch { return(false); }
}
void XLoadCON(DJsIO xKV)
{
int xbase = 0;
if (xKV.Length == 0x4000)
{
xbase = 0x10;
}
else if (xKV.Length != 0x3FF0)
{
throw CryptoExcepts.KVSize;
}
xM = PackageMagic.CON;
xKV.Position = 0x9B8 + xbase;
xC = xKV.ReadBytes(0x1A8);
// D is a constant
xK.D = XPackage.Resources.XK0;
xKV.Position = 0x28C + xbase;
xK.Exponent = xKV.ReadBytes(4);
xKV.Position = 0x298 + xbase;
xK.Modulus = ScrambleMethods.StockScramble(xKV.ReadBytes(0x80), false);
xK.P = ScrambleMethods.StockScramble(xKV.ReadBytes(0x40), false);
xK.Q = ScrambleMethods.StockScramble(xKV.ReadBytes(0x40), false);
xK.DP = ScrambleMethods.StockScramble(xKV.ReadBytes(0x40), false);
xK.DQ = ScrambleMethods.StockScramble(xKV.ReadBytes(0x40), false);
xK.InverseQ = ScrambleMethods.StockScramble(xKV.ReadBytes(0x40), false);
// Checks if the certificate is the same as the imported keys
byte[] xPiece = xC.BytePiece(0x28, 0x80);
if (BitConverter.ToString(ScrambleMethods.StockScramble(xPiece, false)) != BitConverter.ToString(xK.Modulus))
{
throw CryptoExcepts.CertConflict;
}
// Checks if keys work
try
{
RSACryptoServiceProvider x = new RSACryptoServiceProvider();
x.ImportParameters(xK);
}
catch (Exception x) { throw x; }
xV = true;
}
/// <summary>
/// Builds the package
/// </summary>
/// <param name="xParams"></param>
/// <param name="ContentType"></param>
/// <returns></returns>
public bool Create(RSAParams xParams, PackageType ContentType)
{
if (BaseImage == null)
{
throw new Exception("No image");
}
if (!xParams.Valid)
{
throw CryptoExcepts.ParamError;
}
if (ContentType != PackageType.HDDInstalledGame &&
ContentType != PackageType.OriginalXboxGame &&
ContentType != PackageType.GamesOnDemand &&
ContentType != PackageType.SocialTitle)
{
return(false);
}
if (xActive)
{
return(false);
}
xActive = true;
DJsIO x = null;
DJsIO h = null;
try
{
string outlocale = OutLocation.Replace('\\', '/');
if (outlocale[outlocale.Length - 1] == '/')
{
outlocale = outlocale.Substring(0, outlocale.Length - 1);
}
outlocale += '/' + ((uint)ContentType).ToString("X8");
string DataFolder = outlocale + "/" + xHeader.TitleID.ToString("X8") + ".data";
if (!VariousFunctions.xCheckDirectory(OutLocation))
{
throw IOExcepts.CreateError;
}
if (!VariousFunctions.xCheckDirectory(DataFolder))
{
throw IOExcepts.CreateError;
}
uint xBlockCount = 0;
uint xDataFileCount = 0;
long xDataLength = 0;
BaseImage.xIO.Position = BaseImage.baseoffset;
while (BaseImage.xIO.Position < BaseImage.xIO.Length)
{
if ((xBlockCount % Constants.SVODBL[1]) == 0)
{
if (x != null)
{
for (int i = 0; i < 0xCB; i++)
{
x.Position = SVODFuncs.GenerateHashOffset((uint)(i * Constants.SVODBL[0]), 0);
byte[] Data1 = SHA1Quick.ComputeHash(x.ReadBytes(0x1000));
x.Position = SVODFuncs.GenerateHashOffset((uint)(i * Constants.SVODBL[0]), 1);
x.Write(Data1);
}
x.Flush();
xDataLength += x.Length;
x.Close();
}
x = new DJsIO(DataFolder + SVODFuncs.formatstring(xDataFileCount), DJFileMode.Create, true);
xDataFileCount++;
}
x.Position = SVODFuncs.GenerateDataOffset(xBlockCount);
byte[] Data = BaseImage.xIO.ReadBytes(0x1000);
x.Write(Data);
x.Position = SVODFuncs.GenerateHashOffset(xBlockCount, 0);
x.Write(SHA1Quick.ComputeHash(Data));
xBlockCount++;
}
if (xBlockCount == 0)
{
x.Close();
return(xActive = false);
}
x.Flush();
xDataLength += x.Length;
int lvlct = (int)((((xBlockCount % Constants.SVODBL[1]) - 1) / Constants.SVODBL[0]) + 1);
for (int i = 0; i < lvlct; i++)
{
x.Position = SVODFuncs.GenerateHashOffset((uint)(i * Constants.SVODBL[0]), 0);
byte[] Data1 = SHA1Quick.ComputeHash(x.ReadBytes(0x1000));
x.Position = SVODFuncs.GenerateHashOffset((uint)(i * Constants.SVODBL[0]), 1);
x.Write(Data1);
}
x.Flush();
x.Close();
byte[] Hash = null;
for (int i = (int)(xDataFileCount - 1); i >= 0; i--)
{
x = new DJsIO(DataFolder + SVODFuncs.formatstring((uint)i), DJFileMode.Open, true);
if (Hash != null)
{
x.Position = 0xFF0;
x.Write(Hash);
x.Flush();
}
x.Position = 0;
Hash = SHA1Quick.ComputeHash(x.ReadBytes(0x1000));
}
xHeader.DataFileSize = xDataLength;
xHeader.DataFileCount = xDataFileCount;
xHeader.xThisType = ContentType;
h = new DJsIO(outlocale + "/" + xHeader.TitleID.ToString("X8"), DJFileMode.Create, true);
xHeader.Write(ref h);
h.SetLength(0xB000);
h.Position = 0x340;
h.Write((uint)0xAD0E);
h.Position = 0x379;
h.Write(new byte[] { 0x24, 5, 5, 0x11 });
h.Write(Hash);
h.Write((byte)((Deviation == 0) ? 0 : 0x40));
h.WriteUInt24(xBlockCount);
h.Write(Deviation, false);
h.Position = 0x344;
byte[] xHash = SHA1Quick.ComputeHash(h.ReadBytes((int)(h.Length - 0x344)));
h.Position = 0x32C;
h.Write(xHash);
h.Flush();
h.Position = 0x22C;
xHash = SHA1Quick.ComputeHash(h.ReadBytes(0x118));
h.Position = 4;
if (xParams.Type == PackageMagic.CON)
{
h.Write(xParams.Certificate);
h.Write(ScrambleMethods.StockScramble(RSAQuick.SignatureGenerate(xParams.RSAKeys, xHash), true));
}
else
{
h.Write(ScrambleMethods.DevScramble(RSAQuick.SignatureGenerate(xParams.RSAKeys, xHash)));
h.Write(new byte[0x128]);
}
h.IsBigEndian = true;
h.Position = 0;
h.Write(((uint)xParams.Type));
xHeader.xMagic = xParams.Type;
h.Flush();
h.Close();
return(!(xActive = false));
}
catch
{
if (x != null)
{
x.Close();
}
if (h != null)
{
h.Close();
}
return(xActive = false);
}
}
