/** Creates a new instance of War3Decode */
public War3Decode(String cdkey) {
byte[] table = new byte[W3_BUFLEN];
int[] values = new int[4];
tableLookup(cdkey.toUpperCase(), table);
for (int i = W3_BUFLEN; i > 0; i--) Mult(4, 5, values, values, table[i - 1]);
// -------------
decodeKeyTablePass1(values);
decodeKeyTablePass2(values);
product = values[0] >> 0x0a;
// val1 = ((values[0] & 0x03FF) << 0x10) | (values[1] >> 0x10);
// val1 = IntFromByteArray.LITTLEENDIAN.getInteger(values, 0);
val1 = ((values[0] & 0x03FF) << 0x10) | (values[1] >>> 0x10);
val2 = new byte[10];
val2[0] = (byte) ((values[1] & 0x00FF) >> 0);
val2[1] = (byte) ((values[1] & 0xFF00) >> 8);
IntFromByteArray.LITTLEENDIAN.insertInteger(val2, 2, values[2]);
IntFromByteArray.LITTLEENDIAN.insertInteger(val2, 6, values[3]);
}
public int[] getKeyHash(int clientToken, int serverToken) {
try {
MessageDigest digest = MessageDigest.getInstance("SHA-1");
byte[] warBuf = new byte[26];
IntFromByteArray.LITTLEENDIAN.insertInteger(warBuf, 0, clientToken);
IntFromByteArray.LITTLEENDIAN.insertInteger(warBuf, 4, serverToken);
IntFromByteArray.LITTLEENDIAN.insertInteger(warBuf, 8, getProduct());
IntFromByteArray.LITTLEENDIAN.insertInteger(warBuf, 12, getVal1());
for (int i = 16; i < 26; i++) warBuf[i] = getWar3Val2()[i - 16];
digest.update(warBuf);
return IntFromByteArray.LITTLEENDIAN.getIntArray(digest.digest());
} catch (java.security.NoSuchAlgorithmException e) {
System.out.println("Could not find SHA1 library " + e);
System.exit(1);
return new int[1];
}
}
void decodeKeyTablePass2(int[] keyTable) {
int eax, edx, ecx, edi, esi, ebp;
byte[] Copy = ByteFromIntArray.LITTLEENDIAN.getByteArray(keyTable);
esi = 0;
for (edi = 0; edi < 120; edi++) {
eax = edi & 0x1F;
ecx = esi & 0x1F;
edx = 3 - (edi >>> 5);
// ebp = *(DWORD *)((BYTE *)(Copy+3) - ((esi >> 5) << 2)); <-- original c++ code
// could you convert that line to java?
int location = 12 - ((esi >>> 5) << 2);
ebp = IntFromByteArray.LITTLEENDIAN.getInteger(Copy, location);
// System.out.print(PadString.padHex(ebp, 8) + " ");
ebp = (ebp & (1 << ecx)) >>> ecx;
keyTable[edx] = ((ebp & 1) << eax) | (~(1 << eax) & keyTable[edx]);
esi += 0x0B;
if (esi >= 120) esi -= 120;
}
}