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ide / circuitpython-https-server

An example HTTPS server written in CircuitPython for Raspberry Pi Pico W
MIT License
6 stars 1 forks source link

throwing additional minimal hardware at the https-slow-on-picow problem #1

Open ams1 opened 11 months ago

ams1 commented 11 months ago

Hi @ide ,

GREAT initiative, GREAT write-up - I adhere 100%. THANK YOU for pushing this!

Have you considered adding a cryptographic coprocessor to the pico W to offload these TLS operations?

I'm NOT sure if/how this would work, but I'm currently looking into this, and found something maybe similar. https://github.com/espressif/esp-idf/issues/8286

I would love to do fast HTTPS on the PICO W without buying/soldering additional things, but yeah... it doesn't seem to work.

Also I'm open to other directions to solve this problem with the pico-W.

ide commented 11 months ago

I haven't pursued this HTTPS server other than opening https://github.com/adafruit/circuitpython/issues/7657 on the CircuitPython repo. Using a regular Pi running Linux is a more practical way to run an HTTPS server for my use case (personal project, no size constraints, plugged into a wall socket) and I've shared this repo with others who might be more motivated to get HTTPS working on the Pico.

Using hardware-based encryption could be fast enough. This link benchmarked ciphers like various AES modes in software and hardware on a different Cortex-M0+ processor and found a 10-20x speed-up.

ams1 commented 11 months ago

IMO you've done a TON - I really appreciate it!

True, for us techies, a regular Pi is almost ubiquitous, but when "deploying" a web-app at non-techie locations... it helps having a ~$10 option :smile:.

I'll let you know if I make progress on this - or you can of course close this issue.