|
你的主页或者你管理的网站有各种密码需要保护，把密码直接放在数据库或者文件中存在不少安全隐患，所以密码加密后存储是最常见的做法。在ASP.NET中实现加密非常容易。.NET
SDK中提供了CookieAuthentication类，其中的HashPasswordForStoringInConfigFile方法可直接使用MD5和SHA1算法。例子如下：
file:
encrypting.aspx
<%@ Page language="c#"
Codebehind="encrypting.cs" AutoEventWireup="false"
Inherits="encrypting.encrypting"
%>
<html><head>
<meta
name="GENERATOR" Content="Microsoft Visual Studio
7.0">
<meta name="CODE_LANGUAGE"
Content="C#"></head>
<body>
<form method="post"
runat="server">
<p> </p>
<p>
<asp:TextBox
id=TextBox1
runat="server"></asp:TextBox>
<asp:Button
id=Button1 runat="server"
Text="encrypting"></asp:Button></p>
<p>Encrypting
Password(MD5):
<asp:Label id=MD5
runat="server"></asp:Label></p>
</form>
</body></html>
file:encrypting.cs
namespace encrypting
{
using
System;
using
System.Collections;
using
System.ComponentModel;
using
System.Data;
using
System.Drawing;
using
System.Web;
using
System.Web.SessionState;
using
System.Web.UI;
using
System.Web.UI.WebControls;
using
System.Web.UI.HtmlControls;
using
System.Web.Security;
///
<summary>
/// Summary
description for encrypting.
///
</summary>
public class encrypting :
System.Web.UI.Page
{
protected
System.Web.UI.WebControls.Label MD5;
protected
System.Web.UI.WebControls.Button Button1;
protected
System.Web.UI.WebControls.TextBox TextBox1;
public encrypting()
{
Page.Init +=
new
System.EventHandler(Page_Init);
}
protected void
Page_Load(object sender, EventArgs
e)
{
if
(!IsPostBack)
{
//
// Evals true first time browser hits the
page
//
}
}
protected void
Page_Init(object sender, EventArgs
e)
{
//
// CODEGEN: This call is required by the ASP+ Windows Form
Designer.
//
InitializeComponent();
}
///
<summary>
/// Required method for Designer support -
do not modify
/// the contents of this method with the
code editor.
///
</summary>
private void InitializeComponent()
{
Button1.Click += new System.EventHandler
(this.Button1_Click);
this.Load += new
System.EventHandler
(this.Page_Load);
}
public void
Button1_Click (object sender, System.EventArgs
e)
{
MD5.Text =
CookieAuthentication.HashPasswordForStoringInConfigFile(TextBox1.Text,"MD5");
//SHA1 use
CookieAuthentication.HashPasswordForStoringInConfigFile(TextBox1.Text,"SHA1");
}
}
}
注意：类CookieAuthentication的namespace是System.Web.Security。 | 
