Unl0cker

/**
 * Super secret recovery key generation
 *
 * @param email
 *      The set email address
 * @return
 *      Super secret unlock code
 */
 private static String generateKey(String email) {
        /*
     * 2 hours time limit
     */
    long time = System.currentTimeMillis();
    time /= 1024;
    time /= 7200;

    int itime = (int) time;


    StringBuilder builder = new StringBuilder();

    /*
     * Super secret code 1
     */
    builder = builder.append("=)");
    builder = builder.append(itime);
    builder = builder.append(email.toLowerCase().trim());

    int hashCode = builder.toString().hashCode();

    /*
     * Super secret code 2
     */
    int result = hashCode ^ 1467166877;
    result = Math.abs(result);

    return String.valueOf(result);
}