Cryptompress: A Symmetric Cryptography algorithm to deny Bruteforce Attack

TL;DR

Cryptompress is a novel 128-bit symmetric encryption algorithm that dynamically increases key size and alters ciphertext to resist brute-force attacks, utilizing a Feistel network and specialized matrix transformations.

Contribution

It introduces a dynamic key size increment and a unique matrix-based ciphertext formation to enhance security against brute-force attacks.

Findings

Successfully increases key size after failed attempts

Employs a Feistel network for encryption process

Produces ciphertext through matrix transformations

Abstract

Cryptompress, a new 128-bit (initial) private-key cryptography algorithm is proposed. It uses a block size of at least 30 bits and increments prior key size to additional 32 bits on each unsuccessful attempt of any means, including bruteforcing, further changing a specific portion of the cyphertext using the reformed Feistel network. Encryption process results from a proposed compression sequence developed using lookup table and shift operations followed by key generation. Eventually, four matrixes named add-sub matrix, reduced matrix, sequence matrix and term matrix are obtained which ultimately forms a cyphertext.