val trustedCert = trustRootIndex.findByIssuerAndSignature(toVerify)
      if (trustedCert != null) {
        if (result.size > 1 || toVerify != trustedCert) {
          result.add(trustedCert)
        }
        if (verifySignature(trustedCert, trustedCert, result.size - 2)) {
          return result // The self-signed cert is a root CA. We're done.
        }
        foundTrustedCertificate = true
        continue
      }

        }

        if ( !verifySignature(buffer, start, len) ) {
            throw new SMBProtocolDecodingException("Signature verification failed for " + getClass().getName());
        }

        setAsyncHandled(false);
        received();
    }


    /**
     * 
     * {@inheritDoc}
     *
     * @see jcifs.util.transport.Response#verifySignature(byte[], int, int)
     */
    @Override

     */
    long getMid ();


    /**
     * 
     * @param buffer
     * @param i
     * @param size
     * @return whether signature verification is successful
     */
    boolean verifySignature ( byte[] buffer, int i, int size );


    /**
     * @return whether signature verification failed
     */
    boolean isVerifyFailed ();


    /**
     *