Michée Lengronne

Expertise in Platform, Big Data, DevOps, IT security (DevSecOps) and Opensource

The one-time pad

This encryption is theoretically impossible to break. However, it is essentially theoretical because it remains very complex to implement.

The Vigenère cipher

The Vigenère cipher is an evolution of the Caesar cipher that introduces the concept of a key.

The Caesar cipher

One of the oldest encryptions in history. It is incorrectly attributed to Caesar and remains very poor.