Re: [paho-dev] How to use Android Paho java client to create SSL/TLS con

[Roger Light <roger@xxxxxxxxxx>]

Hi Romu,

I can't help with the Java side of things, but could I suggest that
you try connecting to test.mosquitto.org:8883 as well? The
corresponding CA certificate is linked to on http://test.mosquitto.org

This is known to be working, so would help you eliminate any problems
with your server setup, as opposed to the client side.

Cheers,

Roger



On Mon, Sep 29, 2014 at 11:22 AM, Romu Hu <huruomu@xxxxxxxxx> wrote:
> Hi,
>
> I have been using
> org.eclipse.paho.android.service/org.eclipse.paho.android.service.sample/src/org/eclipse/paho/android/service/sample/ClientConnections.java
> to test SSL/TLS connection to mosquitto.  The connection always fail, the
> log on the mosquitto broker side is:
>
> 1411985829: New connection from xx.xx.xx.xx on port 8883.
> 1411985829: OpenSSL Error: error:1408A10B:SSL
> routines:SSL3_GET_CLIENT_HELLO:wrong version number
>
> But I could use the following mosquitto_sub command line to successfully
> connect to the mosquitto broker (8883):
>
> # mosquitto_sub -c -d -h xxx.xxx.xxx.xxx -p 8883 --cafile ca.crt -i
> myclientid -q 1 -t mytopic -v
>
> Below is the listener config of my mosquitto broker:
>
> # Default listener
> bind_address xxx.xxx.xxx.xxx
> port 8883
> max_connections -1
> cafile /etc/mosquitto/ca.crt
> certfile /etc/mosquitto/server.crt
> keyfile /etc/mosquitto/server.key
> tls_version tlsv1.2
>
> Below is my modification to ClientConnections.java:
>
> diff --git
> a/org.eclipse.paho.android.service/org.eclipse.paho.android.service.sample/src/org/eclipse/paho/android/service/sample/ClientConnections.java
> b/org.eclipse.paho.android.service/org.eclipse.paho.android.service.sample/src/org/eclipse/paho/android/service/sample/ClientConnections.java
> index c3133c5..a6af9a6 100644
> ---
> a/org.eclipse.paho.android.service/org.eclipse.paho.android.service.sample/src/org/eclipse/paho/android/service/sample/ClientConnections.java
> +++
> b/org.eclipse.paho.android.service/org.eclipse.paho.android.service.sample/src/org/eclipse/paho/android/service/sample/ClientConnections.java
> @@ -238,6 +238,20 @@ public class ClientConnections extends ListActivity {
>        Log.e("SSLConnection", "Doing an SSL Connect");
>        uri = "ssl://";
>
> +      try {
> +        SSLContext context;
> +        KeyStore ts = KeyStore.getInstance("bks");
> +        ts.load(getResources().openRawResource(R.raw.ca),
> "123456".toCharArray());
> +        TrustManagerFactory tmf = TrustManagerFactory.getInstance("X509");
> +        tmf.init(ts);
> +        TrustManager[] tm = tmf.getTrustManagers();
> +        context = SSLContext.getInstance("TLSv1.2");
> +        context.init(null, tm, null);
> +        SocketFactory factory = context.getSocketFactory();
> +        conOpt.setSocketFactory(factory);
> +      } catch (Exception e) {
> +        // TODO: handle exception
> +      }
>      }
>      else {
>        uri = "tcp://";
>
> I used the following command to convert ca.crt (generated by openssl) to
> ca.bks:
>
> keytool -importcert -keystore C:\Users\shengli\Desktop\ca.bks -file
> C:\Users\shengli\Desktop\ca.crt -storetype BKS -provider
> org.bouncycastle.jce.provider.BouncyCastleProvider
>
> Passphrase of the bks is set to 123456.
>
> Any idea?
>
> Thanks
> Romu
>
>
> On 2014/9/25 17:41, Romu Hu wrote:
>>
>> Hi,
>>
>> I've been trying to use Android Paho java client to create SSL/TLS
>> connection to mosquitto.  My mosquitto broker has two TLS listeners, one
>> requires client certificate, the other one does not.
>>
>> How to connect to the listener that requires client certificate? How to
>> connect to the one that does not?  The ca certificate, client certificate
>> and client key are stored in the Android device.  Any third-party java
>> libraries needed?  Any code examples?
>>
>> Thanks
>> Romu
>
>
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