Optimized Chaotic DNA Encryption Model with Quantum Key Generation

Rapidly growing speed of quantum computing introduces unprecedented danger to modern cryptographic solutions, so security beyond typical encryption is imperative. Here, we present a hybrid cryptosystem consisting of chaotic map-based keystream generation, DNA-inspired quaternary encoding, and quantum-enhanced key generation. This architecture is constructed to address post-quantum security needs, while preserving computational efficiency for encryption of high-value information. Experimentation results confirm that hybrid key generation has a near-maximum entropy of 7.97 bits per byte, and passes benchmarks that are applied in the modern dataset. Multilayer encryption cascade, with deterministic chaos and DNA encoding, achieves a 96.8% avalanche effect, which means it possesses strong diffusion characteristics. Comparing AES-256-GCM and ChaCha20-Poly1305, we see competitive security–throughput trade-offs. Moreover, the machine learning–based analytics layer on encrypted metadata shows 93.8% accuracy on CICIDS2017 dataset, without impacting the core cryptographic security, maintaining formal security integrity and reproducibility.