This blog demonstrates how to create an application to generate random number encrypted passwords. We will create one Windows Form application in C# which generates a unique encrypted password.

So, let's open Visual Studio and follow these steps.

Step 1

Open Visual Studio.

Step 2

Go to File >> New >> Project.

Windows.Forms

Step 3

Now, choose Visual C# and select Windows. Then, select Windows Forms Application. Now, you can give your application name and click on OK button.

Windows.Forms

Step 4

Design the form like this.

Windows.Forms

Step 5

Create one static method with the name "Shuffle" in code-behind.

This Shuffle method returns a string parameter with the position changed for all the characters.

  1. static string Shuffle(string input) {
  2. var q = from c in input.ToCharArray()
  3. orderby Guid.NewGuid()
  4. select c;
  5. string s = string.Empty;
  6. foreach(var r in q)
  7. s += r;
  8. return s;
  9. }

Step 6

Now, write the following code in ValueChanged event of Tickbar control.

  1. private void trckbar_length_ValueChanged(object sender, EventArgs e) {
  2. passLength = trckbar_length.Value + 1; //trackbar value starts from 0, so I add +1 to make it understandable;
  3. lbl_passlength.Text = passLength.ToString();
  4. }

Step 7

After this, write the following code in click event of the "Generate password" button.

  1. private void btn_generatepass_Click(object sender, EventArgs e)
  2. {
  3. txb_password.Text = "";
  4. string text = "aAbBcCdDeEfFgGhHiIjJhHkKlLmMnNoOpPqQrRsStTuUvVwWxXyYzZ01234567890123456789,;:!*$@-_=,;:!*$@-_=";
  5. text = Shuffle(text); //shuffle the above symbols using shuffle() method.
  6. text = text.Remove(passLength); //cut the string size according to the chosen trackbar value.
  7. txb_password.Text = text;
  8. }

Now, let's write full C# code, so you can understand it very well.

C# Code

  1. using System;
  2. using System.Collections.Generic;
  3. using System.ComponentModel;
  4. using System.Data;
  5. using System.Drawing;
  6. using System.Linq;
  7. using System.Text;
  8. using System.Threading.Tasks;
  9. using System.Windows.Forms;
  10. namespace iPass {
  11. public partial class MainForm: Form {
  12. int passLength = 0;
  13. public MainForm() {
  14. InitializeComponent();
  15. }
  16. //Shuffle method that returns a string parameter with all the characters' position changed.
  17. static string Shuffle(string input) {
  18. var q = from c in input.ToCharArray()
  19. orderby Guid.NewGuid()
  20. select c;
  21. string s = string.Empty;
  22. foreach(var r in q)
  23. s += r;
  24. return s;
  25. }
  26. private void btn_generatepass_Click(object sender, EventArgs e) {
  27. txb_password.Text = "";
  28. string text = "aAbBcCdDeEfFgGhHiIjJhHkKlLmMnNoOpPqQrRsStTuUvVwWxXyYzZ01234567890123456789,;:!*$@-_=,;:!*$@-_=";
  29. text = Shuffle(text); //shuffle the above symbols using shuffle() method.
  30. text = text.Remove(passLength); //cut the string size according to the chosen trackbar value.
  31. txb_password.Text = text;
  32. }
  33. private void trckbar_length_ValueChanged(object sender, EventArgs e) {
  34. passLength = trckbar_length.Value + 1; //trackbar value starts from 0, so I add +1 to make it understandable;
  35. lbl_passlength.Text = passLength.ToString();
  36. }
  37. }
  38. }

Step 8

Run this project.

Windows.Forms

Summary

This Password Generator will generate a unique random password using characters, letters, numbers, and special characters so it can't be decrypted easily.