private String decrypt(String encrypted) throws TikaConfigException {
        if (aes == null || encrypted == null) {
            return encrypted;
        }
        return aes.decrypt(encrypted);
    }
only basic and ntlm are supported

@param authScheme
tika-pipes/tika-httpclient-commons/src/main/java/org/apache/tika/client/HttpClientFactory.java