Security Analysis of A Chaos-based Image Encryption Algorithm

TL;DR

This paper evaluates the security of a chaos-based image encryption algorithm against various attacks and proposes methods to enhance its robustness by analyzing its chaotic components and diffusion functions.

Contribution

It provides a detailed security analysis of the Fridrich image encryption algorithm and suggests improvements to strengthen its cryptographic resilience.

Findings

Identified vulnerabilities against brute-force, statistical, known-plaintext, and select-plaintext attacks.

Proposed methods to improve the encryption algorithm's security.

Enhanced understanding of chaotic maps and diffusion functions in cryptography.

Abstract

The security of Fridrich Image Encryption Algorithm against brute-force attack, statistical attack, known-plaintext attack and select-plaintext attack is analyzed by investigating the properties of the involved chaotic maps and diffusion functions. Based on the given analyses, some means are proposed to strengthen the overall performance of the focused cryptosystem.