制作URL以GET方式提交的简单加密程序

首先我们用到的是

DESCryptoServiceProvider 类

对此微软给出的解释是

定义访问数据加密标准 (DES) 算法的加密服务提供程序 (CSP) 版本的包装对象。无法继承此类。

接下来是接受参数页面的方法：

using System;
using System.Collections.Generic;
using System.IO;
using System.Security.Cryptography;
using System.Text;
using System.Web;
using System.Web.UI;
using System.Web.UI.WebControls;
using System.Data;
using System.Data.SqlClient;

namespace Url加密
{
    public partial class Content : System.Web.UI.Page
    {
        protected void Page_Load(object sender, EventArgs e)
        {
            if(!IsPostBack)
            {
                GetDate();
            }
        }

        Byte[] byKey64 = { , , , , , , ,  };
        Byte[] Iv64 = { , , , , , , ,  };

        public string Decrypt(string strText)
        {
            Byte[] inputByteArray = new byte[strText.Length];
            try
            {
                DESCryptoServiceProvider des = new DESCryptoServiceProvider();
                inputByteArray = Convert.FromBase64String(strText);
                MemoryStream ms = new MemoryStream();
                CryptoStream cs = new CryptoStream(ms, des.CreateDecryptor(byKey64, Iv64), CryptoStreamMode.Write);
                cs.Write(inputByteArray, , inputByteArray.Length);
                cs.FlushFinalBlock();
                System.Text.Encoding encoding = System.Text.Encoding.UTF8;
                return encoding.GetString(ms.ToArray());
            }
            catch (Exception ex)
            {
                return ex.Message;
            }
        }

        public string content = string.Empty;

        public void GetDate()
        {
            string sql = "SELECT * FROM [Info] WHERE [Id]=@id";
            string ConStr = "Data Source=.;Initial Catalog=DBTest;User ID=sa;Password=123456";
            SqlParameter para = new SqlParameter("@id", Decrypt(Request.QueryString["id"]));

            using (SqlConnection conn = new SqlConnection(ConStr))
            {
                conn.Open();
                SqlCommand comm = new SqlCommand(sql.ToString(), conn);
                comm.Parameters.Add(para);
                SqlDataReader reader = comm.ExecuteReader();
                while (reader.Read())
                {
                    content = reader["Details"].ToString();
                }
                reader.Close();
            }
        }
    }
}

我用的是repeater的绑定方式

然后是传入ID参数的页面后台代码如下：

using System;
using System.Collections.Generic;
using System.IO;
using System.Security.Cryptography;
using System.Text;
using System.Web;
using System.Web.UI;
using System.Web.UI.WebControls;
using System.Data;
using System.Data.SqlClient;

namespace Url加密
{
    public partial class _Default : System.Web.UI.Page
    {
        protected void Page_Load(object sender, EventArgs e)
        {
            if(!IsPostBack)
            {
                GetDate();
            }
        }

        Byte[] Iv64 = { , , , , , , ,  };
        Byte[] byKey64 = { , , , , , , ,  };
        public string Encrypt(string strText)
        {
            try
            {
                DESCryptoServiceProvider des = new DESCryptoServiceProvider();
                Byte[] inputByteArray = Encoding.UTF8.GetBytes(strText);
                MemoryStream ms = new MemoryStream();
                CryptoStream cs = new CryptoStream(ms, des.CreateEncryptor(byKey64, Iv64), CryptoStreamMode.Write);
                cs.Write(inputByteArray, , inputByteArray.Length);
                cs.FlushFinalBlock();
                return Convert.ToBase64String(ms.ToArray());
            }
            catch (Exception ex)
            {
                return ex.Message;
            }
        }

        public string id = string.Empty;

        public void GetDate()
        {
            string sql = "SELECT * FROM [dbo].[Info]";
            string ConStr="Data Source=.;Initial Catalog=DBTest;User ID=sa;Password=123456";
            using(SqlConnection conn=new SqlConnection(ConStr))
            {
                conn.Open();
                SqlCommand comm=new SqlCommand(sql.ToString(),conn);
                DataSet dt = new DataSet();
                SqlDataAdapter sdt = new SqlDataAdapter(sql.ToString(),conn);
                sdt.Fill(dt);
                this.Repeater1.DataSource = dt.Tables[];
                this.Repeater1.DataBind();
            }
        }
    }
}

他的前台参数绑定：

<asp:Repeater ID="Repeater1" runat="server">
            <ItemTemplate>
                <a href="Content.aspx?id=<%#Encrypt(Eval("Id").ToString())%>"><%#Eval("Title") %></a>
            </ItemTemplate>
        </asp:Repeater>

请注意，对于ID转换成为字符串这一步很重要。以上就是我的个人心得了。希望有大神能够继续指教完善，同时也参考了网上的代码资料。对此表示感谢