Chaotikey – An Entropy-based Cryptographic Key Generation Device

ChaotiKey is a project that generates highly secure cryptographic keys by capturing real-world environmental noise using a convolutional neural network on a Raspberry Pi 4 with multiple sensors. It produces truly random keys without relying on traditional entropy sources vulnerable to attacks. Keys are securely transferred over SSH to a cryptowallet application, verified, and used for encryption with strong authentication, while a live dashboard shows real-time updates. Testing showed ChaotiKey’s keys have excellent randomness and outperform standard pseudorandom generators. Compared to solutions like Cloudflare’s lava lamp wall or thermistor-based generators, ChaotiKey is more affordable, energy-efficient, and deployable in embedded or IoT environments. Challenges in sensor selection and communication security were addressed by using SSH to prevent man-in-the-middle attacks. Future improvements include adding more entropy sources and advanced processing to boost randomness. Overall, ChaotiKey demonstrates a practical, lightweight approach to secure, post-quantum cryptography using machine learning.