Chaotic iterations versus Spread-spectrum: chaos and stego security

TL;DR

This paper explores the relationship between chaos-security and stego-security in information hiding, introducing a new scheme that enhances security measures and improves comparison capabilities over existing spread-spectrum techniques.

Contribution

It presents a novel data hiding scheme that is both stego and chaos-secure, demonstrating improved security scores and clarifying the usability of chaos-security.

Findings

The new scheme is twice secure in both stego and chaos aspects.

It outperforms spread-spectrum in qualitative and quantitative chaos-security evaluations.

The framework enhances the comparison of data hiding schemes.

Abstract

A new framework for information hiding security, called chaos-security, has been proposed in a previous study. It is based on the evaluation of unpredictability of the scheme, whereas existing notions of security, as stego-security, are more linked to information leaks. It has been proven that spread-spectrum techniques, a well-known stego-secure scheme, are chaos-secure too. In this paper, the links between the two notions of security is deepened and the usability of chaos-security is clarified, by presenting a novel data hiding scheme that is twice stego and chaos-secure. This last scheme has better scores than spread-spectrum when evaluating qualitative and quantitative chaos-security properties. Incidentally, this result shows that the new framework for security tends to improve the ability to compare data hiding scheme.