News for hackers. Stuff that matters.

A comment on A Pure HTTP/3 Alternative to MQTT-over-QUIC in Resource-Constrained IoT. Parent comment

Re:A Pure HTTP/3 Alternative to MQTT-over-QUIC in Resource-C... by kelnos on Sunday June 27, 2021 @03:52PM (#27654693)
You're not going to be running openssl or stunnel on an 8-bit microcontroller, though.

mbedtls/polarssl is usually the library of choice for microcontrollers (or, really, things that are not POSIX), but not sure even that will run on an 8-bit micro.

[ Parent | on HN ]
Re:A Pure HTTP/3 Alternative to MQTT-over-QUIC in Resource-C... by ori_b on Sunday June 27, 2021 @07:20PM (#27656402)
> You're not going to be running openssl or stunnel on an 8-bit microcontroller, though.

True, you may need BearSSL, as with this port: https://github.com/OPEnSLab-OSU/SSLClient

It's a bit fat for many 8 bit microcontrollers -- needs 110kB flash and 7kB RAM -- but you can get low end cortex cores that it'll work just fine with.

[ Parent | on HN ]