keypairgeneratorform.cs

RSA Demo,it tells you how to use RSA in .net

using System;
using System.Drawing;
using System.Collections;
using System.ComponentModel;
using System.Windows.Forms;

namespace RSACryptoPad
{
	public class KeyPairGeneratorForm: System.Windows.Forms.Form
	{
		private System.Windows.Forms.Button generateKeysButton;
		private System.Windows.Forms.NumericUpDown numericUpDown;
		private System.Windows.Forms.PictureBox keyPictureBox;
		private System.ComponentModel.Container components = null;

		public KeyPairGeneratorForm()
		{ InitializeComponent(); }
		
		protected override void Dispose( bool disposing )
		{
			if( disposing )
			{ 
				if( components != null )
				{ components.Dispose(); }
			}
			base.Dispose( disposing );
		}
		
		private void InitializeComponent()
		{
			System.ComponentModel.ComponentResourceManager resources = new System.ComponentModel.ComponentResourceManager( typeof( KeyPairGeneratorForm ) );
			this.generateKeysButton = new System.Windows.Forms.Button();
			this.keyPictureBox = new System.Windows.Forms.PictureBox();
			this.numericUpDown = new System.Windows.Forms.NumericUpDown();
			( ( System.ComponentModel.ISupportInitialize )( this.keyPictureBox ) ).BeginInit();
			( ( System.ComponentModel.ISupportInitialize )( this.numericUpDown ) ).BeginInit();
			this.SuspendLayout();
			this.generateKeysButton.BackColor = System.Drawing.SystemColors.Control;
			this.generateKeysButton.Font = new System.Drawing.Font( "Georgia", 8.25F, System.Drawing.FontStyle.Regular, System.Drawing.GraphicsUnit.Point, ( ( byte )( 0 ) ) );
			this.generateKeysButton.ForeColor = System.Drawing.SystemColors.ControlText;
			this.generateKeysButton.Location = new System.Drawing.Point( 84, 44 );
			this.generateKeysButton.Name = "generateKeysButton";
			this.generateKeysButton.Size = new System.Drawing.Size( 68, 43 );
			this.generateKeysButton.TabIndex = 0;
			this.generateKeysButton.Text = "Generate Keys";
			this.generateKeysButton.UseVisualStyleBackColor = false;
			this.generateKeysButton.Click += new System.EventHandler( this.generateKeysButton_Click );
			this.keyPictureBox.BackColor = System.Drawing.Color.Black;
			this.keyPictureBox.BorderStyle = System.Windows.Forms.BorderStyle.Fixed3D;
			this.keyPictureBox.Image = ( ( System.Drawing.Image )( resources.GetObject( "keyPictureBox.Image" ) ) );
			this.keyPictureBox.Location = new System.Drawing.Point( 12, 12 );
			this.keyPictureBox.Name = "keyPictureBox";
			this.keyPictureBox.Size = new System.Drawing.Size( 66, 75 );
			this.keyPictureBox.SizeMode = System.Windows.Forms.PictureBoxSizeMode.AutoSize;
			this.keyPictureBox.TabIndex = 1;
			this.keyPictureBox.TabStop = false;
			this.numericUpDown.BackColor = System.Drawing.SystemColors.WindowFrame;
			this.numericUpDown.ForeColor = System.Drawing.Color.Lime;
			this.numericUpDown.Increment = new decimal( new int[] { 8, 0, 0, 0} );
			this.numericUpDown.Location = new System.Drawing.Point( 84, 12 );
			this.numericUpDown.Maximum = new decimal( new int[] { 16384, 0, 0, 0} );
			this.numericUpDown.Minimum = new decimal( new int[] { 384, 0, 0, 0} );
			this.numericUpDown.Name = "numericUpDown";
			this.numericUpDown.ReadOnly = true;
			this.numericUpDown.Size = new System.Drawing.Size( 68, 26 );
			this.numericUpDown.TabIndex = 0;
			this.numericUpDown.ThousandsSeparator = true;
			this.numericUpDown.UpDownAlign = System.Windows.Forms.LeftRightAlignment.Left;
			this.numericUpDown.Value = new decimal( new int[] { 1024, 0, 0, 0} );
			this.AutoScaleBaseSize = new System.Drawing.Size( 8, 19 );
			this.BackColor = System.Drawing.Color.Black;
			this.ClientSize = new System.Drawing.Size( 162, 103 );
			this.Controls.Add( this.numericUpDown );
			this.Controls.Add( this.keyPictureBox );
			this.Controls.Add( this.generateKeysButton );
			this.Font = new System.Drawing.Font( "Georgia", 12F, System.Drawing.FontStyle.Regular, System.Drawing.GraphicsUnit.Point, ( ( byte )( 0 ) ) );
			this.ForeColor = System.Drawing.Color.LightGreen;
			this.FormBorderStyle = System.Windows.Forms.FormBorderStyle.Fixed3D;
			this.Icon = ( ( System.Drawing.Icon )( resources.GetObject( "$this.Icon" ) ) );
			this.MaximizeBox = false;
			this.MinimizeBox = false;
			this.Name = "KeyPairGeneratorForm";
			this.ShowInTaskbar = false;
			this.SizeGripStyle = System.Windows.Forms.SizeGripStyle.Hide;
			this.StartPosition = System.Windows.Forms.FormStartPosition.CenterParent;
			this.Text = "Generate Keys";
			this.Load += new System.EventHandler( this.KeyPairGeneratorForm_Load );
			( ( System.ComponentModel.ISupportInitialize )( this.keyPictureBox ) ).EndInit();
			( ( System.ComponentModel.ISupportInitialize )( this.numericUpDown ) ).EndInit();
			this.ResumeLayout( false );
			this.PerformLayout();
		}

		private void generateKeysButton_Click( object sender, System.EventArgs e )
		{
			RSACryptoPad.MainForm.SetBitStrength( Convert.ToInt32( numericUpDown.Value ) );
			this.DialogResult = DialogResult.OK;
			this.Dispose( true );
		}

		private void KeyPairGeneratorForm_Load( object sender, EventArgs e )
		{ RSACryptoPad.MainForm.SetBitStrength( 1024 ); }		
	}
}