Secure IoT Connex /w NodeMCU ESP8266, ATECC508A Crypto, Mongoose OS, and AWS IoT

A lot of buzzwords for one title!

The upshot seems to be that when running the Mongoose operating system ( https://github.com/cesanta/mongoose-os ) on an ESP8266 WiFi device, you can use a Microchip crypto accelerator ( http://www.microchip.com/wwwproducts/en/ATECC508A ) to do something with TLS.

Mention is made of hardware-secure credentials but not actually explained (is this TLS client certificates?)