private static final String KEY = [[CENSORED!!!]]
	private static final String KEY_FULL = "x" + KEY + KEY + KEY; // 128 bit
	private static final String IV = "hackyeasterisfun";

	private String calculateShortUrl(String url) {
		try {
			MessageDigest md = MessageDigest.getInstance("SHA-256");
			md.update(url.getBytes("UTF-8"));
			byte[] hash = md.digest();
			byte[] part = new byte[4];
			System.arraycopy(hash, 0, part, 0, 4);
			String b32 = new String(new Base32().encode(part), "UTF-8");
			b32 = b32.replaceAll("=", "");
			return "http://crunch.ly/" + b32;
		} catch (Exception e) {
			e.printStackTrace();
		}
		return null;
	}

	private String cryptTicket(String url, String shortUrl) {
		try {
			Cipher cipher = Cipher.getInstance("AES/CBC/PKCS5Padding");
			SecretKeySpec keySpec = new SecretKeySpec(KEY_FULL.getBytes("UTF-8"), "AES");
			cipher.init(Cipher.ENCRYPT_MODE, keySpec, new IvParameterSpec(IV.getBytes("UTF-8")));
			String plain = new String(Base64.encodeBase64(url.getBytes("UTF-8")), "UTF-8");
			plain += "@" + new String(Base64.encodeBase64(shortUrl.getBytes("UTF-8")), "UTF-8");
			byte[] crypted = cipher.doFinal(plain.getBytes("UTF-8"));
			return Base64.encodeBase64String(crypted);
		} catch (Exception e) {
			e.printStackTrace();
		}
		return null;
	}