c#利用Security加密解密口令

先需要using System.Web.Security;

        MD5加密口令#region MD5加密口令
        public static string encrypt(string spass)
        {
            if (spass.Length > 0)
            {
                string encryptpass = FormsAuthentication.HashPasswordForStoringInConfigFile(spass, "MD5");
                return encryptpass;
            }
            else {
                return "96E79218965EB72C92A549DD5A330112";//默认密码设为空
            }
        }
        #endregion
        可选择性加密口令,MD5Hash16,MD5Hash32,Sha1Hash#region 可选择性加密口令,MD5Hash16,MD5Hash32,Sha1Hash
        public static string UserPassFormat(string sPass,string encrypt)
        {
            if (sPass.Length > 0)
            {
                string encryptpass = FormsAuthentication.HashPasswordForStoringInConfigFile(sPass, encrypt);
                return encryptpass;
            }
            else
            {
                return "";//默认密码设为空
            }

        }
        #endregion