[C#] Crypto HWID

[sakiir]

Bonjour ,
J'ai fais un petit code sale qui me permet de recuperer un identifiant machine "unique" .
c'est plustot simple je prend le nom de la machine, j'exerce une petite fonction crypto dessus, ensuite je fais pareil avec le nom d'utilisateur , je concataine les deux chaines puis je renvoi le MD5 de cette chaine .

Voici le code pour les interessé :

Class SaCrypt :

Code :

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using System.Security.Cryptography;

namespace HWIDGeneratorV2
{
    class SaCrypt
    {
        public string HWID(string bBase, string bBase2)
        {
            string finale = "";
            int i;
            uint tmp = 0;
            int tmp2 = 0;
            string part1 = "";
            string part2 = "";

            for (i = 0; i != bBase.Length; i++)
            {
                tmp = bBase[i] % 0xDEADBEEF * 0x99;
            }

            for (i = 0; i != bBase.Length; i++)
            {
                tmp2 = bBase[i] ^ 0x3;
            }
            part1 = tmp.ToString() + "-" + tmp2.ToString();


            tmp = 0;
            tmp2 = 0;

            for (i = 0; i != bBase.Length; i++)
            {
                tmp = bBase[i] % 0xDEADBEEF * 0x99;
            }
            for (i = 0; i != bBase.Length; i++)
            {
                tmp2 = bBase[i] ^ 0x3;
            }
            part2 = tmp.ToString() + "-" + tmp2.ToString();
            finale = MD5string(part1 + "|" + part2);
            return (finale);
        }

        private string MD5string(string input)
        {
            MD5 md5 = System.Security.Cryptography.MD5.Create();
            byte[] inputBytes = System.Text.Encoding.ASCII.GetBytes(input);
            byte[] hash = md5.ComputeHash(inputBytes);
            StringBuilder sb = new StringBuilder();
            for (int i = 0; i < hash.Length; i++)
            {
                sb.Append(hash[i].ToString("X2"));
            }
            return sb.ToString();
        }
    }
}

Form1 :

Code :

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;


namespace HWIDGeneratorV2
{
    public partial class Form1 : Form
    {
        public Form1()
        {
            InitializeComponent();
        }

        private void button1_Click(object sender, EventArgs e)
        {
            SaCrypt s = new SaCrypt();
            textBox1.Text = s.HWID(Environment.MachineName.ToString(), Environment.UserName.ToString());
        }

        private void tetbox1_Keydown(object sender, KeyEventArgs e)
        {
            if (e.KeyCode == Keys.Enter)
            {
                SaCrypt s = new SaCrypt();
                textBox1.Text = s.HWID(Environment.MachineName.ToString(), Environment.UserName.ToString());
            }

            if (e.KeyCode == Keys.Back)
            {
                textBox1.Text = "";
            }
        }

        private void button2_Click(object sender, EventArgs e)
        {
            textBox1.Text = "";
        }



    }
}

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Au Passage j'ai pas encore trouver comment proteger son code comme on pourrait le faire dans d'autre langage autre que les langage Windows ..