c# project md5 sha512

Cipher.cs

using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using System.Windows.Forms;
using System.Security.Cryptography;

namespace WindowsFormsApp1
{
    public partial class Form1 : Form
    {
        public Form1()
        {
            InitializeComponent();
        }

        private void textBox1_TextChanged(object sender, EventArgs e)
        {
            void shaM()
            {
                byte[] data = new byte[512];
                byte[] result;

                SHA512 sHA = new SHA512Managed();
                result = sHA.ComputeHash(data);
                textBox2.Text = BitConverter.ToString(result);
            }
            //shaM
            void Md5()
            {
                byte[] data1 = new byte[512];
                MD5 a = MD5.Create();
                byte[] hash = a.ComputeHash(data1);
                string hexString = BitConverter.ToString(hash).Replace("-", string.Empty).ToLower();
                textBox2.Text = hexString;
            }
            //Md5();
            //от Дани
        }
    }
}