form1.cs

This is program that i just have downloaded from internet and i want everybody enjoy!

using System;
using System.Drawing;
using System.Collections;
using System.ComponentModel;
using System.Windows.Forms;
using System.Data;
using System.Web.Security;
using System.Data.SqlClient;

namespace Encryption
{
	/// <summary>
	/// Summary description for Form1.
	/// </summary>
	public class Form1 : System.Windows.Forms.Form
	{
		internal System.Windows.Forms.TextBox txtEncryptedPassword;
		internal System.Windows.Forms.Label Label2;
		internal System.Windows.Forms.Label Label1;
		internal System.Windows.Forms.TextBox txtPassword;
		internal System.Windows.Forms.Button btnEncrypt;
		internal System.Windows.Forms.Label label3;
		internal System.Windows.Forms.Label label4;
		/// <summary>
		/// Required designer variable.
		/// </summary>
		private System.ComponentModel.Container components = null;

		public Form1()
		{
			//
			// Required for Windows Form Designer support
			//
			InitializeComponent();

			//
			// TODO: Add any constructor code after InitializeComponent call
			//
		}

		/// <summary>
		/// Clean up any resources being used.
		/// </summary>
		protected override void Dispose( bool disposing )
		{
			if( disposing )
			{
				if (components != null) 
				{
					components.Dispose();
				}
			}
			base.Dispose( disposing );
		}

		#region Windows Form Designer generated code
		/// <summary>
		/// Required method for Designer support - do not modify
		/// the contents of this method with the code editor.
		/// </summary>
		private void InitializeComponent()
		{
			System.Resources.ResourceManager resources = new System.Resources.ResourceManager(typeof(Form1));
			this.txtEncryptedPassword = new System.Windows.Forms.TextBox();
			this.Label2 = new System.Windows.Forms.Label();
			this.Label1 = new System.Windows.Forms.Label();
			this.txtPassword = new System.Windows.Forms.TextBox();
			this.btnEncrypt = new System.Windows.Forms.Button();
			this.label3 = new System.Windows.Forms.Label();
			this.label4 = new System.Windows.Forms.Label();
			this.SuspendLayout();
			// 
			// txtEncryptedPassword
			// 
			this.txtEncryptedPassword.BorderStyle = System.Windows.Forms.BorderStyle.FixedSingle;
			this.txtEncryptedPassword.Location = new System.Drawing.Point(232, 64);
			this.txtEncryptedPassword.Name = "txtEncryptedPassword";
			this.txtEncryptedPassword.Size = new System.Drawing.Size(472, 20);
			this.txtEncryptedPassword.TabIndex = 27;
			this.txtEncryptedPassword.Text = "";
			// 
			// Label2
			// 
			this.Label2.Font = new System.Drawing.Font("Tahoma", 9F, System.Drawing.FontStyle.Regular, System.Drawing.GraphicsUnit.Point, ((System.Byte)(0)));
			this.Label2.Location = new System.Drawing.Point(-108, 175);
			this.Label2.Name = "Label2";
			this.Label2.Size = new System.Drawing.Size(128, 23);
			this.Label2.TabIndex = 26;
			this.Label2.Text = "Encrypted Password";
			// 
			// Label1
			// 
			this.Label1.Font = new System.Drawing.Font("Tahoma", 9F, System.Drawing.FontStyle.Regular, System.Drawing.GraphicsUnit.Point, ((System.Byte)(0)));
			this.Label1.Location = new System.Drawing.Point(-100, 135);
			this.Label1.Name = "Label1";
			this.Label1.Size = new System.Drawing.Size(112, 23);
			this.Label1.TabIndex = 25;
			this.Label1.Text = "Clear Password:";
			// 
			// txtPassword
			// 
			this.txtPassword.BorderStyle = System.Windows.Forms.BorderStyle.FixedSingle;
			this.txtPassword.Location = new System.Drawing.Point(232, 32);
			this.txtPassword.Name = "txtPassword";
			this.txtPassword.Size = new System.Drawing.Size(184, 20);
			this.txtPassword.TabIndex = 24;
			this.txtPassword.Text = "";
			// 
			// btnEncrypt
			// 
			this.btnEncrypt.FlatStyle = System.Windows.Forms.FlatStyle.Flat;
			this.btnEncrypt.Image = ((System.Drawing.Image)(resources.GetObject("btnEncrypt.Image")));
			this.btnEncrypt.ImageAlign = System.Drawing.ContentAlignment.MiddleLeft;
			this.btnEncrypt.Location = new System.Drawing.Point(336, 104);
			this.btnEncrypt.Name = "btnEncrypt";
			this.btnEncrypt.TabIndex = 23;
			this.btnEncrypt.Text = "Encrypt";
			this.btnEncrypt.TextAlign = System.Drawing.ContentAlignment.MiddleRight;
			this.btnEncrypt.Click += new System.EventHandler(this.btnEncrypt_Click);
			// 
			// label3
			// 
			this.label3.Font = new System.Drawing.Font("Tahoma", 9F, System.Drawing.FontStyle.Regular, System.Drawing.GraphicsUnit.Point, ((System.Byte)(0)));
			this.label3.Location = new System.Drawing.Point(32, 72);
			this.label3.Name = "label3";
			this.label3.Size = new System.Drawing.Size(184, 23);
			this.label3.TabIndex = 29;
			this.label3.Text = "Encrypted Password with MD5:";
			// 
			// label4
			// 
			this.label4.Font = new System.Drawing.Font("Tahoma", 9F, System.Drawing.FontStyle.Regular, System.Drawing.GraphicsUnit.Point, ((System.Byte)(0)));
			this.label4.Location = new System.Drawing.Point(104, 40);
			this.label4.Name = "label4";
			this.label4.Size = new System.Drawing.Size(104, 23);
			this.label4.TabIndex = 28;
			this.label4.Text = "Clear Password:";
			// 
			// Form1
			// 
			this.AutoScaleBaseSize = new System.Drawing.Size(5, 13);
			this.ClientSize = new System.Drawing.Size(728, 141);
			this.Controls.Add(this.label3);
			this.Controls.Add(this.label4);
			this.Controls.Add(this.txtEncryptedPassword);
			this.Controls.Add(this.Label2);
			this.Controls.Add(this.Label1);
			this.Controls.Add(this.txtPassword);
			this.Controls.Add(this.btnEncrypt);
			this.Name = "Form1";
			this.Text = "Encryption";
			this.ResumeLayout(false);

		}
		#endregion

		/// <summary>
		/// The main entry point for the application.
		/// </summary>
		[STAThread]
		static void Main() 
		{
			Application.Run(new Form1());
		}

		private void btnEncrypt_Click(object sender, System.EventArgs e)
		{
			 //Encrypting password. Applying SHA1 Encryption Algo 
			this.txtEncryptedPassword.Text = EncryptingPassword();
			updatePasswordInDB("Server=Fahad; database=TestDB; uid=sa; pwd=sqladmin");
		
		}
		public  string EncryptingPassword() 
		{
			//Return Encrypted Password
			return FormsAuthentication.HashPasswordForStoringInConfigFile(this.txtPassword.Text.Trim(), "MD5");
		}
		public void updatePasswordInDB(string connectionString)
		{
			SqlConnection objConn= new SqlConnection(connectionString);
			objConn.Open();
			SqlCommand objcmd  = new SqlCommand("update TestEncryption set password = '" + this.txtEncryptedPassword.Text.Trim() + "' where name = 'Qamar'", objConn);
			objcmd.ExecuteNonQuery();

			}

	}
}