| 你的主頁或者你管理的網(wǎng)站有各種密碼需要保護(hù)，把密碼直接放在數(shù)據(jù)庫或者文件中存在不少隱患，所以密碼加密后存儲是最常見的做法。在ASP.NET中實(shí)現(xiàn)加密非常容易。.NET SDK中提供了CookieAuthentication類，其中的HashPasswordForStoringInConfigFile方法可直接使用MD5和SHA1算法。例子如下：<br> file: encrypting.aspx<br> <%@ Page language="c#" Codebehind="encrypting.cs" AutoEventWireup="false" Inherits="encrypting.encrypting" %><br> <html><head><br> <meta name="GENERATOR" Content="Microsoft Visual Studio 7.0"><br> <meta name="CODE_LANGUAGE" Content="C#"></head><br> <body><br> <br> <form method="post" runat="server"><br> <p> </p><br> <p><br> <asp:TextBox id=TextBox1 runat="server"></asp:TextBox><br> <asp:Button id=Button1 runat="server" Text="encrypting"></asp:Button></p><br> <p>Encrypting Password(MD5):<br> <asp:Label id=MD5 runat="server"></asp:Label></p><br> </form><br> <br> </body></html><br> <br> file:encrypting.cs<br> <br> namespace encrypting<br> {<br> using System;<br> using System.Collections;<br> using System.ComponentModel;<br> using System.Data;<br> using System.Drawing;<br> using System.Web;<br> using System.Web.SessionState;<br> using System.Web.UI;<br> using System.Web.UI.WebControls;<br> using System.Web.UI.HtmlControls;<br> using System.Web.Security;<br> /// <summary><br> /// Summary description for encrypting.<br> /// </summary><br> public class encrypting : System.Web.UI.Page<br> {<br> protected System.Web.UI.WebControls.Label MD5;<br> protected System.Web.UI.WebControls.Button Button1;<br> protected System.Web.UI.WebControls.TextBox TextBox1;<br> <br> public encrypting()<br> {<br> Page.Init += new System.EventHandler(Page_Init);<br> }<br> protected void Page_Load(object sender, EventArgs e)<br> {<br> if (!IsPostBack)<br> {<br> //<br> // Evals true first time browser hits the page<br> //<br> }<br> }<br> protected void Page_Init(object sender, EventArgs e)<br> {<br> //<br> // CODEGEN: This call is required by the ASP+ Windows Form Designer.<br> //<br> InitializeComponent();<br> }<br> /// <summary><br> /// Required method for Designer support - do not modify<br> /// the contents of this method with the code editor.<br> /// </summary><br> private void InitializeComponent()<br> {<br> Button1.Click += new System.EventHandler (this.Button1_Click);<br> this.Load += new System.EventHandler (this.Page_Load);<br> }<br> public void Button1_Click (object sender, System.EventArgs e)<br> {<br> MD5.Text = CookieAuthentication.HashPasswordForStoringInConfigFile(TextBox1.Text,"MD5");<br> //SHA1 use CookieAuthentication.HashPasswordForStoringInConfigFile(TextBox1.Text,"SHA1");<br> }<br> }<br> }<br> 注意：類CookieAuthentication的namespace是System.Web.Security。 |
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