JA7Xe4RE

1 private String createPuzzle() throws Exception {
2        //Generate the required Byte arrays
3        byte[] prefix = get16ZeroBytes();
4        byte[] puzzleNumber = getPuzzleNumber();
5        byte[] bytekey = getRandom8Bytes();
6        byte[] desKey = getDESByteArray();
7
8        //Write all arrays to a ByteArrayOutputStream so they can be appended.
9        ByteArrayOutputStream oStream = new ByteArrayOutputStream();
10        oStream.write(prefix);
11        oStream.write(puzzleNumber);
12        oStream.write(bytekey);
13
14        //Create the puzzle byte array via the ByteArrayOutputStream
15        byte[] puzzle = oStream.toByteArray();
16
17//      Check the size is correct
18//      System.out.println("");
19//      System.out.println("Length is " + String.valueOf(puzzle.length) + " bytes.");
20
21//        Debug Info
22//        printByteArray(prefix);
23//        printByteArray(puzzleNumber);
24//        printByteArray(bytekey);
25//        printByteArray(getDESByteArray());
26
27
28        //Change byte arrays to strings so that we can encrypt.
29        StringBuilder stringBuilder = new StringBuilder();
30        String prefixString = Base64.getEncoder().encodeToString(prefix);
31        String puzzleNumberString = Base64.getEncoder().encodeToString(puzzleNumber);
32        String byteKeyString = Base64.getEncoder().encodeToString(bytekey);
33        stringBuilder.append(prefixString);
34        stringBuilder.append(puzzleNumberString);
35        stringBuilder.append(byteKeyString);
36
37        //Define plaintext and Key
38        String plaintext = stringBuilder.toString();
39        SecretKey DES_KEY = CryptoLib.createKey(desKey);
40
41        //Encrypt plaintext with key
42        DES desEncryptor = new DES();
43        String encryptedPuzzle = desEncryptor.encrypt(plaintext, DES_KEY);
44
45//        System.out.println("ENCRYPTED PUZZLE: " + encryptedPuzzle);
46
47        return encryptedPuzzle;
48    }
49
50
51public static void main(String[] args) throws Exception {
52
53        PuzzleMaker pm = new PuzzleMaker();
54
55        ArrayList<String> puzzleArrayList = new ArrayList<>();
56        for(int i = 0; i < 4096; i++){
57            String newPuzzle = pm.createPuzzle();
58            puzzleArrayList.add(newPuzzle);
59            System.out.println(String.valueOf(i) + ":" + newPuzzle);
60        }
61
62
63
64    }