private static byte[] getKey(String rifIn, String actIn, String idps)
{
if (rifIn == null || actIn == null)
{
return(null);
}
byte[] result = null;
FileStream rifFile = File.Open(rifIn, FileMode.Open);
byte[] rif0x40 = new byte[0x10];
byte[] rif0x50 = new byte[0x10];
byte[] encrif0x40 = new byte[0x10];
byte[] encrif0x50 = new byte[0x10];
rifFile.Seek(0x40, SeekOrigin.Begin);
rifFile.Read(encrif0x40, 0, encrif0x40.Length);
rifFile.Read(encrif0x50, 0, encrif0x50.Length);
rifFile.Close();
ToolsImpl.aesecbDecrypt(RIFKEY, encrif0x40, 0x00, rif0x40, 0, 0x10); //Decryp firzt 0x10 bytes of RIF
//System.out.println("rif0x40= " + ConversionUtils.getHexString(rif0x40));
long index = ConversionUtils.be32(rif0x40, 0xC); //
if (index < 0x80)
{
byte[] actDat = decryptACTDAT(actIn, idps);
byte[] datKey = new byte[0x10];
result = new byte[0x10];
ConversionUtils.arraycopy(actDat, (int)index * 16, datKey, 0, 0x10);
ToolsImpl.aesecbDecrypt(datKey, encrif0x50, 0, result, 0, 0x10);
}
return(result);
}
private static byte[] decryptACTDAT(String actIn, String IDPSFile)
{
FileStream actFile = File.Open(actIn, FileMode.Open);
byte[] actdat = new byte[0x800];
byte[] result = new byte[actdat.Length];
actFile.Seek(0x10, SeekOrigin.Begin);
actFile.Read(actdat, 0, actdat.Length);
actFile.Close();
byte[] key = getPerConsoleKey(IDPSFile);
ToolsImpl.aesecbDecrypt(key, actdat, 0, result, 0, actdat.Length);
return(result);
}
public byte[] getKey(String rapFile)
{
BinaryReader raf = new BinaryReader(File.OpenRead(rapFile));
byte[] read = raf.ReadBytes(0x10);
// RandomAccessFile raf = new RandomAccessFile(rapFile, "r");
// byte[] read = new byte[0x10];
// raf.readFully(read);
// raf.close();
raf.Close();
byte[] intermediate = new byte[read.Length];
ToolsImpl.aesecbDecrypt(rapKey, read, 0, intermediate, 0, read.Length);
for (int loop = 0; loop < 5; loop++)
{
for (int loop2 = 0; loop2 < 0x10; loop2++)
{
int index = indexTable[loop2];
intermediate[index] = (byte)(intermediate[index] ^ key1[index]);
}
for (int loop2 = 0xF; loop2 > 0; loop2--)
{
int index1 = indexTable[loop2];
int index2 = indexTable[loop2 - 1];
intermediate[index1] = (byte)(intermediate[index1] ^ intermediate[index2]);
}
int acum = 0;
for (int loop2 = 0; loop2 < 0x10; loop2++)
{
int index = indexTable[loop2];
byte current = (byte)(intermediate[index] - acum);
intermediate[index] = current;
if (acum != 1 || current != 0xFF)
{
int aux1 = current & 0xFF;
int aux2 = key2[index] & 0xFF;
acum = (aux1 < aux2) ? 1 : 0;
}
current = (byte)(current - key2[index]);
intermediate[index] = current;
}
}
return(intermediate);
}
