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 = { 10, 20, 30, 40, 50, 60, 70, 80 };
Byte[] Iv64 = { 11, 22, 33, 44, 55, 66, 77, 85 };

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, 0, 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 = { 11, 22, 33, 44, 55, 66, 77, 85 };
Byte[] byKey64 = { 10, 20, 30, 40, 50, 60, 70, 80 };
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, 0, 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[0];
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