Performance Evaluation of DTLS Implementations on RIOT OS for Internet of Things Applications.

The popularity, variety, and number of Internet of Things (IoT) devices and solutions have been increasing significantly with each passing year. This diversity of devices, and limited computational, memory, and battery resources make it difficult to apply effective security solutions. That is why dedicated mechanisms for the protection of IoT-based transmissions are developed. One of the most popular solutions is Datagram Transport Layer Security (DTLS), which allows securing datagram-based applications. In this paper, we investigate how efficient the three currently available DTLS implementations provided by the RIOT Operating System are. Based on the results obtained, interested parties can choose the DTLS module that has the best performance for the chosen IoT application.