c# webform md5生成

using System.Web.Security; 

public static string CreatePassword(string StrPassword, CurrentEnum.SecurityPassword PassType)
        {
            string Password = "";
            switch (PassType)
            {
                case CurrentEnum.SecurityPassword.MD5:
                    Password = System.Web.Security.FormsAuthentication.HashPasswordForStoringInConfigFile(StrPassword.Trim(), "MD5");
                    break;
                case CurrentEnum.SecurityPassword.SHA1:
                    Password = System.Web.Security.FormsAuthentication.HashPasswordForStoringInConfigFile(StrPassword.Trim(), "SHA1");
                    break;
                case CurrentEnum.SecurityPassword.ENCR:
                    System.Web.Security.FormsAuthenticationTicket ticket = new System.Web.Security.FormsAuthenticationTicket(StrPassword, true, 2);
                    Password = FormsAuthentication.Encrypt(ticket).ToString();
                    ticket = null;
                    break;
            }
            return Password;
        }

  /// <summary>
        /// 加密方式
        /// </summary>
        public enum SecurityPassword
        {
            MD5 = 0,
            SHA1,
            ENCR
        }