MD5加密

using System;
using System.Collections.Generic;
using System.Web;

namespace Web.Code
{
    public class MD5Pwd
    {
        #region   加密
        ///   <summary>  
        ///   MD5加密  
        ///   </summary>  
        ///   <param   name="InputString">要加密的字串</param>  
        ///   <returns>密文</returns>  
        public static string Md5hash_String(string InputString)
        {
            InputString = Md5hash_String(InputString, "MD5");
            return InputString;
        }
        ///   <summary>  
        ///   SHA1,MD5加密    
        ///   </summary>  
        ///   <param   name="InputString">要加密的字符串</param>  
        ///   <param   name="format">加密格式   MD5   或   SHA1</param>  
        ///   <returns>返回加密后的字串</returns>  
        public static string Md5hash_String(string InputString, string format)
        {
            if (format == "SHA1")
            {
                InputString = System.Web.Security.FormsAuthentication.HashPasswordForStoringInConfigFile(InputString, "SHA1");
                //InputString=.Security.Authentication
            }
            else if (format == "MD5")
            {
                InputString = System.Web.Security.FormsAuthentication.HashPasswordForStoringInConfigFile(InputString, "MD5");
            }

            return InputString;
        }

        //sql2005的MDT函数
        //select sys.fn_VarBinToHexStr(hashbytes(’MD5′, ‘12345′))
        #endregion
    }
}