form1.cs

Encrypt and Decrypt with different algorithm. Can enter password for each file you encrypt.

using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Text;
using System.Windows.Forms;

namespace EN11
{
    public partial class StartPage : Form
    {
        public StartPage()
        {
            InitializeComponent();
        }

        private void StartPage_Load(object sender, EventArgs e)
        {

        }

        private void buttEP_Click(object sender, EventArgs e)
        {
            ep_s1 step1 = new ep_s1();
            step1.ShowDialog();
        }

        private void buttdp_Click(object sender, EventArgs e)
        {
            dc_s1 step2 = new dc_s1();
            step2.ShowDialog();
        }

        private void butte_Click(object sender, EventArgs e)
                   {
            System.Diagnostics.Process.Start(Application.StartupPath + "\\EN2006.EXE");
        }

        private void buttd_Click(object sender, EventArgs e)
        {
            System.Diagnostics.Process.Start(Application.StartupPath + "\\DE2006.EXE");
        }

        private void bctt_Click(object sender, EventArgs e)
        {
            MessageBox.Show("Author :- Hashan Madhubhashana Chandrapala \n Tel :- [phone] \n Mobile :- [phone]  \n E-Mail :- [e-mail]", "ENC11");
        }
    }
}