Hi, In Linaro Virtual Connect 20 (LVC20), Shebu and I presented a session "Scalable Security Using Trusted Firmware-M Profiles" (ref[1]). It basically shows an example of using FreeRTOS+TF-M Profile Small on armv8m devices to connect to AWS cloud through a Gateway. The key features demonstrated in the example:

* Symmetric cipher based secure connection - TLS PSK * Usage of (symmetric) attestation * Device-Gateway-Cloud secure channel example A blog (https://www.trustedfirmware.org/blog/amazon-freertos-tfm-blog/) is shared in tf.org if you want to know more details of the design. Thanks.

Ref: [1] Scalable Security Using Trusted Firmware-M Profiles - https://connect.linaro.org/resources/lvc20/lvc20-213/

Regards, David Wang ARM Electronic Technology (Shanghai) Co., Ltd Phone: +86-21-6154 9142 (ext. 59142)