ECC608 Support for Sierra Wireless HL78XX modules

[froberto]

Is there any existing examples or support for use of the ECC608 with Sierra Wireless HL78XX modules, specifically the HL7800. There is a built in TLS stack but it requires feeding the private key in plain text and can be read right back and I am looking for alternatives. Any help is appreciated!

[bryan-hunt]

Its been a long time since I've used a Sierra Wireless modem so I have a few questions:

• Are you running software inside the module or are you interfaced to it from another MCU/MPU?
• If you're interfacing with the modem with an external device is your question to whether you can use the modem's TLS stack but use external keys?

If you're running your software outside the modem: a) What kind of interface are you using the module (USB, AT Command, etc)? b) Do you have sockets interface available to your software? b) Can you run mbedtls with the sockets interface?

[froberto]

I am running software on an external MCU. Unfortunately there is no native support for external keys but was unsure if there was any work done with Sierra Wireless to add external key support. A) It is an AT command interface B) Yes C) Yes As a side topic is there an open source generic AT command stack that you could recommend that I could use as a starting point with interfacing with the module?