Unveiling Samsung Quantum Galaxy: Securing Smartphones With Quantum and Post-Quantum Cryptography

Quantum technologies have emerged as vital tools for enhancing mobile communication security. The Samsung Galaxy series now features a quantum random number generator (QRNG) that offers true randomness, strengthening cryptographic protection. Despite its potential, QRNG integration remains largely unexplored in practical applications. This paper investigates the QRNG chip’s integration and functionality in the Samsung Quantum Galaxy smartphone through digital forensics and reverse engineering. We identified a lack of effective QRNG utilization in existing applications and addressed this gap by developing a secure instant messaging and VoIP application that combines QRNG with post-quantum cryptography (PQC). Our solution demonstrates that leveraging QRNG-generated randomness alongside PQC significantly improves security against emerging quantum threats, establishing a foundation for enhanced mobile data protection.