Реалізація шифру Гілла засобами Python із використанням операцій над матрицями

Abstract

The purpose of this article is to study the principles of symmetric encryption based on linear algebra, as well as the practical implementation of a classical cryptographic algorithm — the Gill cipher — in the Python programming language. In the course of the work, it was necessary to implement mechanisms for encrypting and decrypting text, ensure correct work with the Ukrainian alphabet, and check the reversibility of the key matrix.