FormsAuthentication.HashPasswordForStoringInConfigFile 数据加密

<% ... @ Page Language="C#"  %>
<! DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN"
    "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd" >
< html  xmlns ="http://www.w3.org/1999/xhtml"   >
    < head >
     < title > ASP.NET Example </ title >
< script  runat ="server" > ...
         void Cancel_Click(object sender, EventArgs e)
         ...{
            userName.Text = "";
            password.Text = "";
            repeatPassword.Text = "";
            result.Text = "";
         }

         void HashPassword_Click(object sender, EventArgs e)
         ...{
            if (Page.IsValid)
            ...{
               string hashMethod = "";

               if (md5.Checked)
               ...{
                  hashMethod = "MD5";
               }
               else
               ...{
                  hashMethod = "SHA1";
               }

               string hashedPassword =
                  FormsAuthentication.HashPasswordForStoringInConfigFile(password.Text, hashMethod);

               result.Text = "&lt;credentials passwordFormat="" + hashMethod +""&gt;<br />" +
                  "  &lt;user name="" + Server.HtmlEncode(userName.Text) + "" password="" +
                  hashedPassword + "" /&gt;<br />" + "&lt;/credentials&gt;";
            }
            else
            ...{
               result.Text = "There was an error on the page.";
            }
         }
       </ script >
    </ head >

    < body >
       < form  id ="form1"  runat ="server" >
          < p > This form displays the results of the FormsAuthentication.HashPasswordForStoringInConfigFile
         method. < br  /> The user name and hashed password can be stored in a  &lt; credentials &gt;  node
         in the Web.config file. </ p >
          < table  cellpadding ="2" >
             < tbody >
                < tr >
                   < td > New User Name: </ td >
                   < td >< asp:TextBox  id ="userName"  runat ="server"   /></ td >
                   < td >< asp:RequiredFieldValidator  id ="userNameRequiredValidator"  
                        runat ="server"  ErrorMessage ="User name required"  
                        ControlToValidate ="userName"   /></ td >
                </ tr >
                < tr >
                   < td > Password:  </ td >
                   < td >< asp:TextBox  id ="password"  runat ="server"  TextMode ="Password"   /></ td >
                   < td >< asp:RequiredFieldValidator  id ="passwordRequiredValidator"  
                        runat ="server"  ErrorMessage ="Password required"  
                        ControlToValidate ="password"   /></ td >
                </ tr >
                < tr >
                   < td > Repeat Password:  </ td >
                   < td >< asp:TextBox  id ="repeatPassword"  runat ="server"  TextMode ="Password"   /></ td >
                   < td >< asp:RequiredFieldValidator  id ="repeatPasswordRequiredValidator"  
                        runat ="server"  ErrorMessage ="Password confirmation required"  
                        ControlToValidate ="repeatPassword"   />
                       < asp:CompareValidator  id ="passwordCompareValidator"  runat ="server"  
                        ErrorMessage ="Password does not match"  
                        ControlToValidate ="repeatPassword"  
                        ControlToCompare ="password"   /></ td >
                </ tr >
                < tr >
                   < td > Hash function: </ td >
                   < td  align ="center" >
                      < asp:RadioButton  id ="sha1"  runat ="server"  GroupName ="HashType"  
                                      Text ="SHA1"   />
                      < asp:RadioButton  id ="md5"  runat ="server"  GroupName ="HashType"  
                                      Text ="MD5"   />
                   </ td >
                </ tr >
                < tr >
                   < td  align ="center"  colspan ="2" >
                     < asp:Button  id ="hashPassword"  onclick ="HashPassword_Click"  
                                runat ="server"  Text ="Hash Password"   /> &nbsp;&nbsp;  
                     < asp:Button  id ="cancel"  onclick ="Cancel_Click"  runat ="server"  
                                Text ="Cancel"  CausesValidation ="false"   />
                   </ td >
                </ tr >
             </ tbody >
          </ table >

          < pre >< asp:Label  id ="result"  runat ="server" ></ asp:Label ></ pre >
       </ form >
    </ body >
</ html >