public byte[] encrypt(char[] password, byte[] salt) {
		final PBEKeySpec pbeKeySpec = new PBEKeySpec(password, salt, iterationCount, keyLength);
		final SecretKey secretKey = KeyUtil.generateKey(algorithm, pbeKeySpec);
		return secretKey.getEncoded();
	}
@Test
	public void encryptTest(){
		final String s = SecureUtil.pbkdf2("123456".toCharArray(), RandomUtil.randomBytes(16));
		assertEquals(128, s.length());
	}