docs: public Packer useAESwithRandomIntIV(final String passphrase) throws NoSuchAlgorithmException,
  			NoSuchPaddingException {
  		initCipher();
  		integerIV = (rnd.nextInt() & 0x7FFFFFFF);
  		initCipherIV(generateMdfromInteger(this.integerIV, aesCipherLen), AESTYPEIV.RANDOM_INT_IV);
  		initCipherKey(passphrase);
  		return this;
  	}