mosquitto-users team mailing list archive

[Remi SALEMBIER <remi.salembier@xxxxxxx>]

Hi Roger,

You mean that if TLS-PSK is required, there is no other library than OpenSSL that match the needs ?

Thanks.
Remi

De : Mosquitto-users [mailto:mosquitto-users-bounces+remi.salembier=niji.fr@xxxxxxxxxxxxxxxxxxx] De la part de Roger Light
Envoyé : lundi 3 mars 2014 21:43
À : david.reid@xxxxxxxxxxxxxxxxxx
Cc : mosquitto-users@xxxxxxxxxxxxxxxxxxx
Objet : Re: [Mosquitto-users] Mosquitto SSL options for embedded targets

Hi David,
You're not wrong, it only uses openssl at the moment. In theory if you compile without TLS-PSK support it should be quite straightforward to use another SSL library that has an openssl compatibility layer. It's not doing anything particularly unusual. I haven't tried to do it though, so can't promise anything.

Best of luck getting it working!

Cheers,

Roger

On Fri, Feb 28, 2014 at 5:49 PM, David Reid <david.reid@xxxxxxxxxxxxxxxxxx<mailto:david.reid@xxxxxxxxxxxxxxxxxx>> wrote:
All,

Using Mosquitto v1.2.3 along with lwIP v1.4.1 and FreeRTOS v8.0.0 on an ARM Cortex M3.  I am trying to add SSL to the mix, and it would seem that Mosquitto is designed for OpenSSL interface only.  Am I wrong?

Just wondering if any other users have successfully gotten SSL working with Mosquitto using something else besides OpenSSL?  Or if they have OpenSSL with Mosquitto working on a platform similar to mine, what is the resulting compiled output size and the amount of work?

I am using an IAR compiler and my license will let me create up to 256K, but I am seeing reports via Google searches of 1MB output when compiling OpenSSL, which might work on a PC, but definitely not on my target.  Should be able to prune that hopefully, have not tried yet.  I do not mind switching to a commercial product/license for another SSL library if necessary, provided it will work nicely with Mosquitto.

I am trying to judge the amount of effort and if it is even possible to get SSL on Mosquitto in my M3 project.  Anybody else out there done this on a M3?  If so, do you mind sharing how, library used,  and any other details that you could?

Thanks.

Regards,
Dave


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