Hello,

I am currently working on a project using STM32CubeIDE, where I am leveraging mbedTLS v2.16.2 to establish a secure MQTT connection with a Mosquitto broker on port 8883.

During my implementation, I encountered a TLS handshake error with the following details:

mbedtls_ssl_handshake failed. -29312 (-0x7280)

I would like to confirm if mbedTLS v2.16.2, as provided in STM32CubeIDE, supports secure TLS connections (e.g., Secure MQTT) and is compatible with Mosquitto broker configurations. Additionally, I would appreciate guidance on resolving this error.

Here are some specific details about my setup:

1. mbedTLS version: 2.16.2 (as integrated into STM32CubeIDE).
2. Broker: Mosquitto, configured for secure MQTT on port 8883.
3. Issue: TLS handshake fails with the error mentioned above.
4. Certificates: [Specify if you are using self-signed certificates, CA certificates, etc.].

Please let me know if additional information or logs would be helpful for diagnosing the issue.

Thank you for your assistance.

 Regards,

Noushad

Embedded systems engineer

Inthings Technologies Private Limited

www.inthings.tech

 Regards,

Noushad

Embedded systems engineer

Inthings Technologies Private Limited

www.inthings.tech