Résumé:
With the rapid rise of Internet of Things (IoT) devices, new opportunities are emerging, but this
also brings significant data security and privacy challenges. Securing data from these devices has
become a priority, requiring innovative and robust solutions. To guarantee the protection and
confidentiality of the information exchanged, one approach proposes the use of Blockchain
technology and smart contracts to set up a secure communication system in the IoT.
The purpose of this study is the establish a secure communication system for IoT environments
using Blockchain technology and smart contracts. The main objective is to ensure the
confidentiality, integrity, and authenticity of data exchanged between IoT devices while respecting
the limited resource constraints of these devices. To do this, several smart contracts have been
developed to manage data access, storage, and verification. Experimental results demonstrate that
the use of Blockchain and smart contracts significantly improves data security by providing trust
and transparency mechanisms, thereby overcoming current security challenges in IoT
environments.
