form1.cs

利用C#做的AES加密和解密的小程序

using System;
using System.Drawing;
using System.Collections;
using System.ComponentModel;
using System.Windows.Forms;
using System.Data;
using Aes算法;
using System.Text;

namespace AesDemoWinApp
{
	public class Form1 : System.Windows.Forms.Form
	{
    private System.Windows.Forms.TextBox textBox1;
    private System.Windows.Forms.TextBox textBox2;
        private System.Windows.Forms.TextBox textBox3;
    private System.Windows.Forms.Button button1;
    private System.Windows.Forms.Button button2;
    private System.Windows.Forms.Label label1;
    private System.Windows.Forms.Label label2;
    private System.Windows.Forms.Label label3;
		
		private System.ComponentModel.Container components = null;
        private TextBox textBox4;
        private Button button3;
        private Label label5;
        private Label label4;


       private byte[] cipherText = new byte[16];//保存密文信息
       private byte[] passwdText = new byte[64]; //保存密钥信息

  
		public Form1()
		{
			InitializeComponent();
		}

		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()
		{
            this.textBox1 = new System.Windows.Forms.TextBox();
            this.textBox2 = new System.Windows.Forms.TextBox();
            this.textBox3 = new System.Windows.Forms.TextBox();
            this.button1 = new System.Windows.Forms.Button();
            this.button2 = new System.Windows.Forms.Button();
            this.label1 = new System.Windows.Forms.Label();
            this.label2 = new System.Windows.Forms.Label();
            this.label3 = new System.Windows.Forms.Label();
            this.label4 = new System.Windows.Forms.Label();
            this.textBox4 = new System.Windows.Forms.TextBox();
            this.button3 = new System.Windows.Forms.Button();
            this.label5 = new System.Windows.Forms.Label();
            this.SuspendLayout();
            // 
            // textBox1
            // 
            this.textBox1.BorderStyle = System.Windows.Forms.BorderStyle.FixedSingle;
            this.textBox1.Location = new System.Drawing.Point(234, 17);
            this.textBox1.MaxLength = 8;
            this.textBox1.Name = "textBox1";
            this.textBox1.Size = new System.Drawing.Size(134, 21);
            this.textBox1.TabIndex = 0;
            // 
            // textBox2
            // 
            this.textBox2.BorderStyle = System.Windows.Forms.BorderStyle.FixedSingle;
            this.textBox2.Location = new System.Drawing.Point(157, 117);
            this.textBox2.MaxLength = 8;
            this.textBox2.Name = "textBox2";
            this.textBox2.ReadOnly = true;
            this.textBox2.Size = new System.Drawing.Size(299, 21);
            this.textBox2.TabIndex = 1;
            // 
            // textBox3
            // 
            this.textBox3.BorderStyle = System.Windows.Forms.BorderStyle.FixedSingle;
            this.textBox3.Location = new System.Drawing.Point(157, 148);
            this.textBox3.MaxLength = 8;
            this.textBox3.Name = "textBox3";
            this.textBox3.ReadOnly = true;
            this.textBox3.Size = new System.Drawing.Size(299, 21);
            this.textBox3.TabIndex = 2;
            // 
            // button1
            // 
            this.button1.FlatStyle = System.Windows.Forms.FlatStyle.Popup;
            this.button1.Location = new System.Drawing.Point(10, 113);
            this.button1.Name = "button1";
            this.button1.Size = new System.Drawing.Size(90, 25);
            this.button1.TabIndex = 4;
            this.button1.Text = "加密";
            this.button1.Click += new System.EventHandler(this.button1_Click);
            // 
            // button2
            // 
            this.button2.FlatStyle = System.Windows.Forms.FlatStyle.Popup;
            this.button2.Location = new System.Drawing.Point(10, 144);
            this.button2.Name = "button2";
            this.button2.Size = new System.Drawing.Size(90, 25);
            this.button2.TabIndex = 5;
            this.button2.Text = "解密";
            this.button2.Click += new System.EventHandler(this.button2_Click);
            // 
            // label1
            // 
            this.label1.Location = new System.Drawing.Point(8, 20);
            this.label1.Name = "label1";
            this.label1.Size = new System.Drawing.Size(226, 17);
            this.label1.TabIndex = 6;
            this.label1.Text = "请输入明文（8个字符=16个字节明文）：";
            // 
            // label2
            // 
            this.label2.Location = new System.Drawing.Point(104, 119);
            this.label2.Name = "label2";
            this.label2.Size = new System.Drawing.Size(47, 21);
            this.label2.TabIndex = 7;
            this.label2.Text = "密文：";
            // 
            // label3
            // 
            this.label3.Location = new System.Drawing.Point(104, 150);
            this.label3.Name = "label3";
            this.label3.Size = new System.Drawing.Size(48, 21);
            this.label3.TabIndex = 8;
            this.label3.Text = "解密文:";
            // 
            // label4
            // 
            this.label4.AutoSize = true;
            this.label4.Location = new System.Drawing.Point(288, 95);
            this.label4.Name = "label4";
            this.label4.Size = new System.Drawing.Size(0, 12);
            this.label4.TabIndex = 9;
            // 
            // textBox4
            // 
            this.textBox4.BorderStyle = System.Windows.Forms.BorderStyle.FixedSingle;
            this.textBox4.Location = new System.Drawing.Point(96, 56);
            this.textBox4.MaxLength = 16;
            this.textBox4.Name = "textBox4";
            this.textBox4.Size = new System.Drawing.Size(301, 21);
            this.textBox4.TabIndex = 10;
            // 
            // button3
            // 
            this.button3.FlatStyle = System.Windows.Forms.FlatStyle.Popup;
            this.button3.Location = new System.Drawing.Point(413, 20);
            this.button3.Name = "button3";
            this.button3.Size = new System.Drawing.Size(58, 57);
            this.button3.TabIndex = 11;
            this.button3.Text = "清除";
            this.button3.UseVisualStyleBackColor = true;
            this.button3.Click += new System.EventHandler(this.button3_Click);
            // 
            // label5
            // 
            this.label5.AutoSize = true;
            this.label5.Location = new System.Drawing.Point(25, 59);
            this.label5.Name = "label5";
            this.label5.Size = new System.Drawing.Size(65, 12);
            this.label5.TabIndex = 12;
            this.label5.Text = "256位密钥:";
            // 
            // Form1
            // 
            this.AutoScaleBaseSize = new System.Drawing.Size(6, 14);
            this.ClientSize = new System.Drawing.Size(487, 214);
            this.Controls.Add(this.label5);
            this.Controls.Add(this.button3);
            this.Controls.Add(this.textBox4);
            this.Controls.Add(this.label4);
            this.Controls.Add(this.label3);
            this.Controls.Add(this.label2);
            this.Controls.Add(this.label1);
            this.Controls.Add(this.button2);
            this.Controls.Add(this.button1);
            this.Controls.Add(this.textBox3);
            this.Controls.Add(this.textBox2);
            this.Controls.Add(this.textBox1);
            this.FormBorderStyle = System.Windows.Forms.FormBorderStyle.FixedDialog;
            this.MaximizeBox = false;
            this.Name = "Form1";
            this.Text = "AES加密与解密";
            this.ResumeLayout(false);
            this.PerformLayout();

    }
		#endregion

		[STAThread]
		static void Main() 
		{
			Application.Run(new Form1());
		}

    private void button1_Click(object sender, System.EventArgs e)
    {
     
      byte[] plainText = new byte[16];//保存明文信息
      //byte[] cipherText = new byte[16];
      //byte[] passwdText = new byte[64]; 


      
      plainText = Encoding.Unicode.GetBytes(textBox1.Text.PadRight(8,' '));//字符串长度不足为8的在后面补上' '
      passwdText = Encoding.Unicode.GetBytes(textBox4.Text.PadRight(16, ' '));//字符串长度不足为16的在后面补上' '
      Aes算法.Aes a = new Aes(passwdText);
      a.Cipher(plainText, cipherText);

      string ciphrtext = "";
      foreach (byte b in cipherText)
      {
          ciphrtext += b.ToString("X") ;//将密文转变为十六进制的字符串
      }
      
      textBox2.Text = ciphrtext;
    } 

    private void button2_Click(object sender, System.EventArgs e)
    {
    
      //byte[] cipherText = new byte[16];
      byte[] decipheredText = new byte[16];
      //byte[] passwdText = new byte[32];
      


      if (textBox2.Text == "")
      {
          label4.Text = "请先加密";
      }


      else
      {  
          label4.Text = "";
        

          Aes算法.Aes a = new Aes(passwdText);
          a.InvCipher(cipherText, decipheredText);

          
          textBox3.Text = Encoding.Unicode.GetString(decipheredText); ;
           
      }
    }

        private void button3_Click(object sender, EventArgs e)
        {
            textBox1.Text = "";
            textBox2.Text = "";
            textBox3.Text = "";
            textBox4.Text = "";

        }  

	}  
}