nRF9160 DTLS Extended Master Secret

Hi,

it seams, that MBED DTLS implementation in nRF9160 firmware v1.3.1 is not compiled with Extended Master Secret Extension https://datatracker.ietf.org/doc/html/rfc7627

While testing with https://github.com/pion/dtls/

we are getting net.Error: handshake error: dtls fatal: server requires the Extended Master Secret extension, but the client does not support it  

Is it possible tu support Extended Master Secret Extension (enable MBEDTLS_SSL_EXTENDED_MASTER_SECRET) in modem firmware please ?

Thank you.

  • Hi Michal,

    Our R&D team confirms that nRF9160 MFW does not support extended master secret. I have reported your request to the PM and will give you feedback if there is any update.

    Please be aware that the extended master secret will not be available in a short time. If you need it urgently please think about other solutions.

    Best regards,

    Charlie

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