How To Install python-cryptography on Ubuntu 20.04
Introduction
In this tutorial we learn how to install python-cryptography on Ubuntu 20.04.
What is python-cryptography
python-cryptography is:
The cryptography library is designed to be a “one-stop-shop” for all your cryptographic needs in Python.
As an alternative to the libraries that came before it, cryptography tries to address some of the issues with those libraries:
- Lack of PyPy and Python 3 support.
- Lack of maintenance.
- Use of poor implementations of algorithms (i.e. ones with known side-channel attacks).
- Lack of high level, “Cryptography for humans”, APIs.
- Absence of algorithms such as AES-GCM.
- Poor introspectability, and thus poor testability.
- Extremely error prone APIs, and bad defaults.
This package contains the Python 2 version of cryptography.
Package: python-cryptography Architecture: amd64 Version: 2.8-3 Priority: optional Section: universe/python Origin: Ubuntu Maintainer: Ubuntu Developers [email protected] Original-Maintainer: Tristan Seligmann [email protected] Bugs: https://bugs.launchpad.net/ubuntu/+filebug Installed-Size: 1741 Depends: python-cffi-backend-api-min (<= 9729), python-cffi-backend-api-max (>= 9729), python-enum34, python-ipaddress, python-six (>= 1.4.1), python2 (« 2.8), python2 (>= 2.7~), python2:any (« 2.8), python2:any (>= 2.7~), libc6 (>= 2.14), libssl1.1 (>= 1.1.1) Suggests: python-cryptography-doc, python-cryptography-vectors Breaks: python-openssl (« 16.0.0) Filename: pool/universe/p/python-cryptography/python-cryptography_2.8-3_amd64.deb Size: 255584 MD5sum: c693f4a4684803decf90ef7793e8ceb6 SHA1: 3aea7f8b13050823c9b572f705f41e8d4e515e2d SHA256: 23e2c74432d306c5cc507eeca8416562f42f130e6973e64608945fd49b940811 Homepage: https://cryptography.io/ Description-en: Python library exposing cryptographic recipes and primitives (Python 2) The cryptography library is designed to be a “one-stop-shop” for all your cryptographic needs in Python.
As an alternative to the libraries that came before it, cryptography tries to address some of the issues with those libraries:
- Lack of PyPy and Python 3 support.
- Lack of maintenance.
- Use of poor implementations of algorithms (i.e. ones with known side-channel attacks).
- Lack of high level, “Cryptography for humans”, APIs.
- Absence of algorithms such as AES-GCM.
- Poor introspectability, and thus poor testability.
- Extremely error prone APIs, and bad defaults.
This package contains the Python 2 version of cryptography.
There are three methods to install python-cryptography on Ubuntu 20.04. We can use apt-get, apt and aptitude. In the following sections we will describe each method. You can choose one of them.
Install python-cryptography Using apt-get
Update apt database with apt-get using the following command.
sudo apt-get update
After updating apt database, We can install python-cryptography using apt-get by running the following command:
sudo apt-get -y install python-cryptography
Install python-cryptography Using apt
Update apt database with apt using the following command.
sudo apt update
After updating apt database, We can install python-cryptography using apt by running the following command:
sudo apt -y install python-cryptography
Install python-cryptography Using aptitude
If you want to follow this method, you might need to install aptitude first since aptitude is usually not installed by default on Ubuntu. Update apt database with aptitude using the following command.
sudo aptitude update
After updating apt database, We can install python-cryptography using aptitude by running the following command:
sudo aptitude -y install python-cryptography
How To Uninstall python-cryptography on Ubuntu 20.04
To uninstall only the python-cryptography package we can use the following command:
sudo apt-get remove python-cryptography
Uninstall python-cryptography And Its Dependencies
To uninstall python-cryptography and its dependencies that are no longer needed by Ubuntu 20.04, we can use the command below:
sudo apt-get -y autoremove python-cryptography
Remove python-cryptography Configurations and Data
To remove python-cryptography configuration and data from Ubuntu 20.04 we can use the following command:
sudo apt-get -y purge python-cryptography
Remove python-cryptography configuration, data, and all of its dependencies
We can use the following command to remove python-cryptography configurations, data and all of its dependencies, we can use the following command:
sudo apt-get -y autoremove --purge python-cryptography
References
Summary
In this tutorial we learn how to install python-cryptography package on Ubuntu 20.04 using different package management tools: apt, apt-get and aptitude.
