<%@ Page Language="C#" ContentType="text/html"%>  
<%@ Import Namespace="System"%>  
<script language="C#" runat="server">  
void Page_Load(Object sender,EventArgs e){  
//获取要加密的字段,并转化为Byte[]数组 
}
<script language="C#" runat="server">  
void Page_Load(Object sender,EventArgs e){  
//获取要加密的字段,并转化为Byte[]数组 
byte[] data=System.Text.Encoding.Unicode.GetBytes(source.Text.ToCharArray());  
//建立加密服务 
System.Security.Cryptography.MD5 md5 = new System.Security.Cryptography.MD5CryptoServiceProvider();  
//加密Byte[]数组
byte[] result= md5.ComputeHash(data);  
//将加密后的数组转化为字段 
string sResult=System.Text.Encoding.Unicode.GetString(result);  
//显示出来 
sha1_1.Text="MD5普通加密:"+sResult.ToString()+"<br />";  
//作为密码方式加密 
string EnPswdStr=System.Web.Security.FormsAuthentication.HashPasswordForStoringInConfigFile(source.Text.ToString(),"MD5");  
//显示出来
sha1_2.Text="MD5密码加密:"+EnPswdStr+"<br />";  
} 
</script>