using System;using System.Collections.Generic;

using System.ComponentModel;

using System.Data;

using System.Drawing;

using System.Linq;

using System.Text;

using System.Windows.Forms;

using System.Security.Cryptography;

using System.Net;





namespace Program_Load

{

    public partial class Form1 : Form

    {

        public Form1()

        {

            InitializeComponent();

        }





        string Unique_Serial, Unique_Serial_Raw, Machine_Name, Unique_ID;

        string Invalid_Serial_Characters = "DKLPQUXY-";

        string Invalid_ID_Character = "ABCDEFGHIJKLMNOPQRSTUVWXYZ-";

        const string User_Entry = "361588899677365933594";  //If you see this, you are looking in the right direction:

        string Compare_User_Entry = "";

        int Max_ID_Length, Max_Serial_Length, Add_Serial_Dash, Max_Dashes, Attempts;

        bool InvalidSerialChar = false;  //The only working serial is this: 134B-94C1-72AE-6781-F413

        bool InvalidIDChar = false;  //The reason, the serial is generated based on my machine's information

        bool Check = false;  //Unless yours is alike, the chances of generating the same serial is 1 in a million.

        MD5CryptoServiceProvider md5 = new MD5CryptoServiceProvider();

        UTF32Encoding utf32 = new UTF32Encoding();

        UTF8Encoding utf8 = new UTF8Encoding();





        private void Form1_Load(object sender, EventArgs e)

        {

            Max_ID_Length = 2;

            Max_Serial_Length = 20;

            Add_Serial_Dash = 0;

            Max_Dashes = 4;

            Machine_Name = System.Environment.MachineName;

            Unique_Serial_Raw = BitConverter.ToString(md5.ComputeHash(utf32.GetBytes(Machine_Name)));

            foreach (char a in Unique_Serial_Raw)

            {

                foreach (char b in Invalid_Serial_Characters)

                {

                    if (Char.ToUpper(a) == b)

                    {

                        InvalidSerialChar = true;

                    }

                }

                foreach (char b in Invalid_ID_Character)

                {

                    if (Char.ToUpper(a) == b)

                    {

                        InvalidIDChar = true;

                    }

                }

                if (InvalidSerialChar == false)

                {

                    if (Max_Serial_Length != 0)

                    {

                        Max_Serial_Length--;

                        Unique_Serial += a;

                    }

                    if (Add_Serial_Dash == 3)

                    {

                        if (Max_Dashes != 0)

                        {

                            Max_Dashes--;

                            Unique_Serial += "-";

                            Add_Serial_Dash = 0;

                        }

                    }

                    else { Add_Serial_Dash++; }

                }

                if (InvalidIDChar == false)

                {

                    if (Max_ID_Length != 0)

                    {

                        Max_ID_Length--;

                        int convert_a = (int)a * 2;

                        Unique_ID += convert_a;

                    }

                }

                InvalidIDChar = false;

                InvalidSerialChar = false;

            }

            Unique_ID_Label.Text += Unique_ID;

            Serial_Box.Text = Unique_Serial;

            Attempts = 3;

        }





        private void Login_Btn_Click(object sender, EventArgs e)

        {

            if (Username_Box.Text.Length != 0 && Password_Box.Text.Length != 0 && Serial_Box.Text.Length != 0)

            {

                Compare_User_Entry = "";

                string Hold_Login_Values = "";

                string Temp_Username = BitConverter.ToString(md5.ComputeHash(utf32.GetBytes(Username_Box.Text)));

                string Temp_Password = BitConverter.ToString(md5.ComputeHash(utf8.GetBytes(Password_Box.Text)));

                foreach (char a in Temp_Username)

                {

                    foreach (char b in Invalid_ID_Character)

                    {

                        if (char.ToUpper(a) == b)

                        {

                            InvalidSerialChar = true;

                        }

                    }

                    if (InvalidSerialChar == false)

                    {

                        Hold_Login_Values += a;

                    }

                    InvalidSerialChar = false;

                }

                foreach (char a in Temp_Password)

                {

                    foreach (char b in Invalid_ID_Character)

                    {

                        if (char.ToUpper(a) == b)

                        {

                            InvalidSerialChar = true;

                        }

                    }

                    if (InvalidSerialChar == false)

                    {

                        Hold_Login_Values += a;

                    }

                    InvalidSerialChar = false;

                }

                int Selection = 4;

                string temp_ = "";

                foreach (char a in Serial_Box.Text)

                {

                    if (Selection != 0)

                    {

                        Selection--;

                        temp_ = BitConverter.ToString(md5.ComputeHash(utf32.GetBytes(a.ToString())));

                    }

                }

                Hold_Login_Values += temp_;

                Hold_Login_Values = BitConverter.ToString(md5.ComputeHash(utf8.GetBytes(Hold_Login_Values)));

                foreach (char a in Hold_Login_Values)

                {

                    foreach (char b in Invalid_ID_Character)

                    {

                        if (char.ToUpper(a) == b)

                        {

                            Check = true;

                        }

                    }

                    if (Check == false)

                    {

                        Compare_User_Entry += a;

                    }

                    Check = false;

                }

                if (User_Entry == Compare_User_Entry)

                {

                    Attempts = 3;

                    MessageBox.Show("Congrats on entry!  \"Codename - Unbreakble\" <--- Please enter this message on my thread along with the Username and Password used!");

                }

                else { if (Attempts != 0) { Attempts--; } MessageBox.Show("Failure!\n" + Attempts + " Attempt(s) Remaining!"); Username_Box.Clear(); Password_Box.Clear(); }

                if (Attempts == 0)

                {

                    System.Diagnostics.Process.Start("https://www.nextgenupdate.com/forums/members/450946-pichu.html");

                    this.Close();

                }

            }

            else { MessageBox.Show("You have either left the Username, Password or Serial field blank.  Please fill it in.", "Error", MessageBoxButtons.OK, MessageBoxIcon.Exclamation ); }

        }





        private void Register_Btn_Click(object sender, EventArgs e)

        {

            MessageBox.Show("What, you actually thought this does shit?  Psh, I beg to differ.", "Think Again", MessageBoxButtons.OK, MessageBoxIcon.Question);

        }

    }

}