private bool checkNPDHash1(String filename, byte[] npd)
{
byte[] fileBytes = ConversionUtils.charsToByte(filename.ToCharArray());
byte[] data1 = new byte[0x30 + fileBytes.Length];
ConversionUtils.arraycopy(npd, 0x10, data1, 0, 0x30);
ConversionUtils.arraycopy(fileBytes, 0x00, data1, 0x30, fileBytes.Length);
byte[] hash1 = ToolsImpl.CMAC128(EDATKeys.npdrm_omac_key3, data1, 0, data1.Length);
bool result1 = compareBytes(hash1, 0, npd, 0x50, 0x10);
if (result1)
{
Console.WriteLine("NPD hash 1 is valid (" + ConversionUtils.getHexString(hash1) + ")");
}
return(result1);
}
private byte[] createNPDHash1(String filename, byte[] npd)
{
byte[] fileBytes = ConversionUtils.charsToByte(filename.ToCharArray());
byte[] data1 = new byte[0x30 + fileBytes.Length];
ConversionUtils.arraycopy(npd, 0x10, data1, 0, 0x30);
ConversionUtils.arraycopy(fileBytes, 0x00, data1, 0x30, fileBytes.Length);
byte[] hash1 = ToolsImpl.CMAC128(EDATKeys.npdrm_omac_key3, data1, 0, data1.Length);
ConversionUtils.arraycopy(hash1, 0, npd, 0x50, 0x10);
bool result1 = compareBytes(hash1, 0, npd, 0x50, 0x10);
if (result1)
{
return(hash1);
}
return(null);
}
private byte[] writeValidNPD(String filename, byte[] devKLic, NPD[] npdPtr, FileStream fin, byte[] contentID, byte[] flags, byte[] version, byte[] type)
{
byte[] npd = new byte[0x80];
//NPD Magic
//ConversionUtils.arraycopy(npd, 0, result.magic, 0, 4);
npd[0] = 0x4E;
npd[1] = 0x50;
npd[2] = 0x44;
npd[3] = 0x00;
//Version 3
//result.version = ConversionUtils.be32(npd, 4);
npd[4] = 0x00;
npd[5] = 0x00;
npd[6] = 0x00;
npd[7] = version[0];
//License 2 ref 3 klic /* 1 network, 2 local, 3 free */
//result.license = ConversionUtils.be32(npd, 8);
npd[8] = 0x00;
npd[9] = 0x00;
npd[10] = 0x00;
npd[11] = 0x03;
//Type /* 1 exec, 21 update */
//result.type = ConversionUtils.be32(npd, 0xC);
npd[12] = 0x00;
npd[13] = 0x00;
npd[14] = 0x00;
npd[15] = type[0];
//No Idea where I get the content_id
//ConversionUtils.arraycopy(npd, 0x10, result.content_id, 0, 0x30
for (int i = 0; i < 0x30; i++)
{
npd[0x10 + i] = contentID[i];
}
//Used to create IV
//ConversionUtils.arraycopy(npd, 0x40, result.digest, 0, 0x10);
byte[] iv = ConversionUtils.charsToByte(("FixedLicenseEDAT").ToCharArray());
ConversionUtils.arraycopy(iv, 0, npd, 0x40, 0x10);
//I guess it's a full file hash
//ConversionUtils.arraycopy(npd, 0x50, result.titleHash, 0, 0x10);
byte[] hash = createNPDHash1(filename, npd);
ConversionUtils.arraycopy(hash, 0x00, npd, 0x50, 0x10);
//Used to create Blockkey
//ConversionUtils.arraycopy(npd, 0x60, result.devHash, 0, 0x10);
byte[] devHash = createNPDHash2(devKLic, npd);
ConversionUtils.arraycopy(devHash, 0, npd, 0x60, 0x10);
//NPD EOF?!?!?!
//result.unknown3 = ConversionUtils.be64(npd, 0x70);
//result.unknown4 = ConversionUtils.be64(npd, 0x78);
for (int i = 0; i < 16; i++)
{
npd[0x70 + i] = 0x00;
}
npdPtr[0] = NPD.createNPD(npd);
return(npd);
}