Implement HTTPS

[mc-hamster]

Implement an HTTPS service.

[mc-hamster]

I did a POC today and will utilize the esp32_https_server as it supports both HTTP and HTTPS in parallel.

https://github.com/fhessel/esp32_https_server

I'm out this weekend but will be able to migrate Meshtastic over to this over the course of next week.

[slavino]

So the concept here is to have HTTPS (SSL) protected REST API on each Meshtastic device capable of WiFi/wired network connection?

[mc-hamster]

You got it!

[mc-hamster]

Benchmark results. Saving it here incase we can tune this later.

HTTP

Server Software:
Server Hostname: 10.10.30.198
Server Port: 80

Document Path: /asdf
Document Length: 169 bytes

Server Software:
Server Hostname: 10.10.30.198
Server Port: 80

Document Path: /
Document Length: 164 bytes

Concurrency Level: 1
Time taken for tests: 1.238 seconds
Complete requests: 10
Failed requests: 0
Total transferred: 2080 bytes
HTML transferred: 1640 bytes
Requests per second: 8.08 [#/sec] (mean)
Time per request: 123.786 [ms] (mean)
Time per request: 123.786 [ms] (mean, across all concurrent requests)
Transfer rate: 1.64 [Kbytes/sec] received

Connection Times (ms)
min mean[+/-sd] median max
Connect: 6 18 34.6 7 116
Processing: 27 106 29.3 118 119
Waiting: 22 74 20.9 84 86
Total: 95 124 11.5 125 143

Percentage of the requests served within a certain time (ms)
50% 125
66% 125
75% 125
80% 125
90% 143
95% 143
98% 143
99% 143
100% 143 (longest request)

HTTPS

Server Software:
Server Hostname: 10.10.30.198
Server Port: 443
SSL/TLS Protocol: TLSv1.2,ECDHE-RSA-AES256-GCM-SHA384,2048,256
Server Temp Key: ECDH P-384 384 bits

Document Path: /
Document Length: 164 bytes

Concurrency Level: 1
Time taken for tests: 19.772 seconds
Complete requests: 10
Failed requests: 0
Total transferred: 2080 bytes
HTML transferred: 1640 bytes
Requests per second: 0.51 [#/sec] (mean)
Time per request: 1977.229 [ms] (mean)
Time per request: 1977.229 [ms] (mean, across all concurrent requests)
Transfer rate: 0.10 [Kbytes/sec] received

Connection Times (ms)
min mean[+/-sd] median max
Connect: 1879 1939 77.5 1915 2152
Processing: 32 38 4.6 40 43
Waiting: 14 15 1.2 16 17
Total: 1921 1977 78.8 1953 2195

Percentage of the requests served within a certain time (ms)
50% 1953
66% 1968
75% 1974
80% 1985
90% 2195
95% 2195
98% 2195
99% 2195
100% 2195 (longest request)

[mc-hamster]

This is done.