Classical Cryptography Methods: Security Improvements by the Hill Cipher
by Rainata Vania Hemawani
Category: STEM
Abstract – The Hill Cipher is a classical cryptography, as there is no present usage of its original method. Nevertheless, it contributed in advancing the mathematics in cryptography at the time it was invented. It was the first method that allowed encryption of more than 2 letters at once, as it utilizes matrix to transform plaintexts into cipher texts. In this paper, the improvements of Hill Cipher will be explored by comparing it with an older method, the Caesar Cipher, looking at how the Hill Cipher managed to reduce the flaws in its method. Furthermore, the advantage of the use of matrices in the cryptosystem of Hill Cipher is going to be explored.