How to programmatically get the encryption used on the page?

Question

Information Security

This is a screenshot from Firefox.

How to get the selected line programmatically in Java or Python?

Answer 1

You could try this:
Lib/ssl.py
SSLSocket.cipher()
Returns a three-value tuple containing the name of the cipher being used, the version of the SSL protocol that defines its use, and the number of secret bits being used. If no connection has been established, returns None.