/// <summary>
        /// The partitioned CRL to check for revocation is retrieved using LDAP.
        /// </summary>
        public bool IsRevoked(IOcesCertificate certificate)
        {
            string          ldapPath    = certificate.PartitionedCrlDistributionPoint;
            OcesEnvironment environment = RootCertificates.GetEnvironment(certificate.IssuingCa);

            Crl crl = _crlDownloader.Download(environment, ldapPath);

            if (!crl.IsPartial())
            {
                throw new InvalidCrlException("Crl was downloaded successfully, but is not a partial CRL:" + ldapPath);
            }
            if (!crl.IsCorrectPartialCrl(ldapPath))
            {
                throw new InvalidCrlException("Crl was downloaded successfully, but is not the correct partitioned crl:" + ldapPath);
            }


            return(crl.IsRevoked(certificate) || IsRevoked(certificate.IssuingCa));
        }
        public bool IsRevoked(IOcesCertificate certificate)
        {
            Crl crl = DownloadCrl(certificate);

            return(crl.IsRevoked(certificate) || IsRevoked(certificate.IssuingCa));
        }