An algorithm for generating cryptographic keys for small IoT devices

This paper proposes a lightweight random key generation algorithm for resource-constrained IoT devices. The algorithm uses random collection and multi-source preprocessing to increase randomness and extend keys to desired lengths with minimal computation. Evaluation using statistical tests such as NIST and DIEHARD confirms its cryptographic robustness and secure operation. This approach serves to strike a balance between security and efficiency, making it suitable for IoT applications that require reliable, low-resource encryption