PBKDF2加密_pbkdf在线

用PBKDF加密密码

public class EncrptyUtil
{
    public static String encrptyPB2(String password)
    {
        try
        {
            int iterationCount = 1000;
 
            int  keyLength = 64*8;
            
            char[] charPwd = password.toCharArray();
 
            byte[] salt = getSalt().getBytes();
            for (byte b : salt)
            {
                System.out.print(b);
            }
            System.out.println();
            System.out.println("------------------------");
            
            PBEKeySpec keySpec = new PBEKeySpec(charPwd, salt, iterationCount, keyLength);
 
            SecretKeyFactory keyFactory = SecretKeyFactory.getInstance("PBKDF2WithHmacSHA1");
            byte[] pbePwd = keyFactory.generateSecret(keySpec).getEncoded();
            
            for (byte b : pbePwd)
            {
                System.out.print(b);
            }
            System.out.println();
            System.out.println("------------------------");
            System.out.println(salt.toString()+pbePwd.toString());
 
            return salt.toString()+pbePwd.toString();
        }
        catch (Exception e)
        {
            e.printStackTrace();
        }
        return null;
    }
 
    private static String getSalt()
    {
        try
        {
            byte[] bytes = new byte[16];
            SecureRandom random = SecureRandom.getInstance("SHA1PRNG");
            random.nextBytes(bytes);
            System.out.println(random.toString());
            return random.toString();
        }
        catch (NoSuchAlgorithmException e)
        {
            e.printStackTrace();
        }
        return null;
    }
 
    @Test
    public void testPB2()
    {
        String password="ghrte";
        EncrptyUtil.encrptyPB2(password);
    }
}