if ( ncr == null ) {
                continue;
            }
            else if ( !foundEnc && ncr.getContextType() == EncryptionNegotiateContext.NEGO_CTX_ENC_TYPE ) {
                foundEnc = true;
                EncryptionNegotiateContext enc = (EncryptionNegotiateContext) ncr;
                if ( !checkEncryptionContext(req, enc) ) {
                    return false;
                }