Cryptanalysis of a Classical chaos-based cryptosystem with some quantum cryptography features

TL;DR

This paper critically analyzes a chaos-based cryptosystem with quantum cryptography features, revealing significant security flaws and limitations in implementation, thereby questioning its practical viability.

Contribution

It provides a detailed cryptanalysis of a recent chaos-based cryptosystem, highlighting its security weaknesses and implementation issues.

Findings

The cryptosystem has a reduced key space.

Implementation of chaos-based systems faces significant limitations.

Serious security vulnerabilities are identified.

Abstract

The application of synchronization theory to build up new cryptosystems has been a hot topic during the last two decades. In this paper we analyze a recent proposal in this field. We pinpoint the main limitations of the software implementation of chaos-based systems designed on the grounds of synchronization theory. In addition, we show that the cryptosystem under evaluation possesses serious security problems that imply a clear reduction of the key space.