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XORpad detection for powersave files.

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No current solution for the easy creation of xorpads; thankfully SciresM
has that covered with another mini-tool!
This commit is contained in:
Kurt 2014-12-29 22:24:16 -08:00
parent 5c345848e1
commit f73b6a668c
1 changed files with 48 additions and 0 deletions
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48
PKX/f1-Main.cs
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@ -556,6 +556,54 @@ namespace PKHeX
}
private void open1MB(byte[] input, string path, string GameType, bool oras)
{
// Detection of stored Decryption XORpads:
if (ModifierKeys != Keys.Control) // Allow bypass via control key.
{
byte[] savID = new byte[0x10]; Array.Copy(input, 0x20, savID, 0, 0x10);
ulong ident = BitConverter.ToUInt64(savID, 0x0);
string exepath = System.Windows.Forms.Application.StartupPath;
string checkpath = exepath.Clone().ToString();
check:
{
string[] XORpads = Directory.GetFiles(checkpath);
for (int i = 0; i < XORpads.Length; i++)
{
FileInfo fi = new FileInfo(XORpads[i]);
if (fi.Extension == ".xorpad" && (fi.Length == 0x65610 || fi.Length == 0x76010))
{
byte[] data = File.ReadAllBytes(XORpads[i]);
if (BitConverter.ToUInt64(data, 0) == ident) // we match our cart ident.
{
// Set up faux Cyber Save
int length = (int)fi.Length - 0x10;
byte[] decryptedPS = new byte[length];
Array.Copy(input, 0x5400, decryptedPS, 0, length);
for (int z = 0; z < length; z++)
decryptedPS[z] ^= data[z + 0x10];
// Weakly check the validity of the decrypted content
if (BitConverter.ToUInt32(decryptedPS, length - 0x1F0) != 0x42454546)
continue; // If the XORpad doesn't decrypt properly, we keep checking.
oras = (length == 0x76000);
GameType = oras ? "ORAS" : "XY";
// Save file is now decrypted!
openMAIN(decryptedPS, path, GameType, oras);
// Abort the opening of a non-cyber file.
return;
}
}
}
// End file check loop, if xorpads folder path exists, check there too.
if (checkpath == exepath && Directory.Exists(Path.Combine(exepath, "xorpads")))
{
checkpath = Path.Combine(exepath, "xorpads");
goto check;
}
}
}
L_Save.Text = "SAV: " + Path.GetFileName(path);
SaveGame = new PKX.Structures.SaveGame(GameType);
savegame_oras = oras;