How to use TLS - PSK along with MQTT in Java 8

Question

I am looking for sample code to use MQTT along with TLS - PSK without using any certificates. I have a psk identity and a key.

here is the sample i have which is not working..

int qos = 1;
String broker = "tcp://xxx.example.in:5633";
String clientId = "JavaExample";
String user = "my_identity"; (my psk identity)
String pass = "6874e899071b909a2268b020ef9ff046cydfernjn90546n546nklkj565"; (my psk key)
MemoryPersistence persistence = new MemoryPersistence();

    MqttAsyncClient sampleClient = new MqttAsyncClient(broker,clientId,persistence);
    sampleClient.setCallback(new SimpleMqttCallBack());
    MqttConnectOptions connOpts = new MqttConnectOptions(); 
    connOpts.setUserName(user);
    connOpts.setCleanSession(false);
    System.out.println("Connecting to broker: " + broker);


    SSLContext sslContext = SSLContext.getInstance("TLSv1.2");    
    sslContext.init(null,null,null);
    SSLSocketFactory socketFactory = sslContext.getSocketFactory();
    connOpts.setSocketFactory(socketFactory);   
    System.out.println("SSL Added");


    sampleClient.connect(connOpts);
    sampleClient.subscribe("#", qos);

how can i connect my psk identity and key with TLS1.2 and MQTT ?

Try https://github.com/clover/pskfactories – satur9nine Aug 12 '22 at 22:37 — satur9nine, Aug 12 '22 at 22:37

score -1 · Answer 1 · answered Mar 22 '18 at 15:25

-1

Maybe this answer helps: https://stackoverflow.com/a/49431225/8495341

You can pass a custom SSLSocketFactory to the paho MQTT client that does TLS-PSK with bouncy castle.

answered Mar 22 '18 at 15:25

rob retro

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How to use TLS - PSK along with MQTT in Java 8

1 Answers1