This module provides access to Transport Layer Security (often known as "Secure Sockets Layer") encryption and peer authentication facilities for network sockets, both client-side and server-side.
ssl.wrap_socket(sock, keyfile=None, certfile=None, server_side=False, cert_reqs=CERT_NONE, ca_certs=None\, timeout=10sec)
Takes an instance
socket.socket, and returns an instance of ssl.SSLSocket, a subtype of
socket.socket, which wraps the underlying socket in an SSL context. Example:
import socket import ssl s = socket.socket() ss = ssl.wrap_socket(s) ss.connect(socket.getaddrinfo('www.google.com', 443)[-1])
Certificates must be used in order to validate the other side of the connection, and also to authenticate ourselves with the other end. Such certificates must be stored as files using the FTP server, and they must be placed in specific paths with specific names.
For instance, to connect to the Blynk servers using certificates, take the file
ca.pem located in the
blynk examples folder and put it in
/flash/cert/. Then do:
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)[-1])
SSL sockets inherit all methods and from the standard sockets, see the
timeout : specify a Timeout in Seconds for the SSL handshake operation between client and server, default is 10 seconds
ssl.CERT_REQUIRED: Supported values in