A secure Socket Layer (SSL) Certificate is a Digital certificate that can be used for the authentication of a website and it helps to establish an encrypted connection between the user and server. SSL is a secure layer that creates an encrypted link between a web server and a web browser. SSL keeps internet connections secure. When an SSL certificate is installed on the website it becomes HTTP to HTTPS, which is more secure. SSL is also called TLS.
Types of SSL certificates:
There are different types of SSL certificates with different validation levels. The six main types are:
- Domain Validated certificates
- Wildcard SSL certificates
- Multi-Domain SSL certificates
- Organization Validated certificates
- Unified Communications Certificates
- Extended Validation certificates
Uses of SSL:
- Authentication: An SSL certificate will verify that a user is connecting to the correct server.
- Encryption: SSL will ensure that the connection between the user and the server must be encrypted.
- HTTPS: It is a combination of the HTTP with the Secure Socket Layer (SSL)/Transport Layer Security (TLS) protocol.
- TLS: It is an authentication and security protocol widely implemented in browsers and Web servers.
Prerequisite:
Preinstalled Python environment can be downloaded from python.org. To install python on Windows/Mac/Linux refer to:
- Windows
- Mac
- Linux
Installation of Python certifi on Windows:
Step 1: Press the Start button and then Type CMD to Select Command Prompt from the list. When we open the command prompt then a screen like this will appear on the computer.
Step 2: Type the given below command on the command prompt and then press enter button.
python -m pip install certifi
In case the previous command will not work then type the given below command and then press enter button.
pip install certifi
Installation of Python certifi on Linux:
Step 1: Open your terminal.
Step 2: Type the given below command on the terminal and then press enter button.
python -m pip install certifi
Step 3: In case if the previous command will not work then type the given below command and then press enter button.
pip install certifi
or
python -m pip install certifi
Python certifi.where()
The certifi.where() is a function that helps us find the information of the installed certificate authority (CA) in Python.
import certifi print(certifi.where())
Output