Three Layer Encryption Protocol: an Approach of Super Encryption Algorithm

Abstract

Data security is one of the critical things that must be considered along with the ease of the data distribution process in Era Society 5.0. Maintaining data security is not an easy thing to do. One way that can be used to secure data is through cryptographic techniques. In cryptography, two basic techniques are often used, namely substitution techniques and transposition techniques. The problem in this study is related to the weakness of the level of data security in the classical cryptography algorithm, substitution, and transposition techniques. This study aims to develop a cryptographic approach to super encryption by doing a hybrid or a combination of three cryptographic algorithms. The approach proposed in this study is also known as the three-layer encryption protocol. The algorithms that focus on this research are Autokey Cipher, Columnar Transposition, and Hill Cipher. Evaluation of the results of the application of the proposed three-layer protocol approach using the Avalanche Effect approach. As a result, the proposed three-layer protocol technique can produce a better level of security than single-layer encryption.