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

namespace EI_Image_Viewer_Activation
{
    public partial class Main : Form
    {
        public Main()
        {
            InitializeComponent();
        }

        private void btnCopy_Click(object sender, EventArgs e)
        {
            Clipboard.SetText(activeSecreteTbox.Text);

            MessageBox.Show("拷贝成功!");
        }

        private void codeTBox_TextChanged(object sender, EventArgs e)
        {
            this.activeSecreteTbox.Text = Md5($"{this.codeTBox.Text.Trim()}_XINGCANG");
        }

        public static string Md5(string target)
        {
            using (MD5 md5 = MD5.Create())
            { // MD5非线程安全
                byte[] bytes = md5.ComputeHash(Encoding.UTF8.GetBytes(target));
                StringBuilder sb = new StringBuilder(32);
                for (int i = 0; i < bytes.Length; ++i)
                    sb.Append(bytes[i].ToString("x2"));
                return sb.ToString();
            }
        }
    }
}