protected override string ExecuteWorkflow(X509Certificate2 candidate)
        {
            var oidValue = OidHelper.GetOidValue(candidate, OidHelper.Personal);

            if (oidValue != null)
            {
                return(oidValue.Substring(8, 11));
            }

            oidValue = OidHelper.GetOidValue(candidate, OidHelper.Company);

            if (oidValue != null)
            {
                return(oidValue.Substring(8, 11));
            }

            return(oidValue);
        }
        protected override DateTime ExecuteWorkflow(X509Certificate2 candidate)
        {
            var dateString = default(string);
            var oidValue   = OidHelper.GetOidValue(candidate, OidHelper.Personal);

            if (oidValue != null)
            {
                dateString = oidValue.Substring(0, 8);
            }

            oidValue = OidHelper.GetOidValue(candidate, OidHelper.Company);

            if (oidValue != null)
            {
                dateString = oidValue.Substring(0, 8);
            }

            dateString = dateString.Insert(2, "/");
            dateString = dateString.Insert(5, "/");
            return(DateTime.ParseExact(dateString, "dd/MM/yyyy", System.Globalization.CultureInfo.CreateSpecificCulture("pt-BR")));
        }