sgwireless.com
Networks Protocols
HTTPS

HTTPS

Using HTTPS adds Transport Layer Security (TLS) to your network traffic. The advantage is an encrypted connection between your device and the server.

Basic example

from network import WLAN #note that you can also use LTE
import socket
import ssl
import time

wlan = WLAN()
wlan.init(mode=WLAN.STA, ssid='your ssid', auth=(WLAN.WPA2, 'your password'))
print("connecting", end='')
while not wlan.isconnected():
    time.sleep(0.25)
    print(".", end='')

print("connected")
print(wlan.ifconfig())
s = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
ss = ssl.wrap_socket(s) #adds TLS
ss.connect(socket.getaddrinfo(host, 443)[0][-1])
httpreq = 'GET / HTTP/1.1 \r\nHOST: '+ host + '\r\nConnection: close \r\n\r\n'
ss.send(httpreq)
time.sleep(1)
rec = ss.recv(10000)
print(rec)

Basic connection using ssl.wrap_socket().

import socket
import ssl

s = socket.socket()
ss = ssl.wrap_socket(s)
ss.connect(socket.getaddrinfo('www.google.com', 443)[0][-1])
ss.se

Below is an example using certificates with the blynk cloud.

Certificate was downloaded from the blynk examples folder and placed in /flash/cert/ on the device.

import socket
import ssl

s = socket.socket()
ss = ssl.wrap_socket(s, cert_reqs=ssl.CERT_REQUIRED, ca_certs='/flash/cert/ca.pem')
ss.connect(socket.getaddrinfo('cloud.blynk.cc', 8441)[0][-1])

For more info, check the ssl module in the API reference.