Hello
In our application we're using the download client. Here are the cipher suites the modem supports in hardware: https://www.nordicsemi.com/Products/Low-power-cellular-IoT/nRF9160/Download#infotabs
Unfortunately at least the non PSK cipher suites are considered weak. We're looking for a way to add stronger cipher suites.
I am not absolutely sure about the glue layer. Can it be used to add cipher suites using software implementations, e.g. mbedtls? I tried some configuration options, but the device still offers the cipher suites mentioned above.
My question: Is it possible to use the download client with other cipher suites? Since the download client uses the sockets, it seems hard to bind it to an external crypto library like a mbedtls. But maybe there's a zephyr configuration, that uses mbedtls/oberon/arm cryptocell interally and extends the cipher suite list.
SDK version: 1.5.0
King regards
Samuel
