public void generateActivationKey() {
try {
SecureRandom random = SecureRandom.getInstance("SHA1PRNG");
byte data[] = new byte[8];
random.nextBytes(data);
activationKey = Util.hex(data);
} catch (NoSuchAlgorithmException ex) {
LOG.error("Error generating activation key", ex);
throw new RuntimeException(ex.getMessage());
}
}
