With the emergence of the Internet of Things (IoT), many devices organized into network, communicate by themselves on the Internet and send data, or private information on the web. It is essential to secure the transmitted data and the identities that may be disclosed to make these new technologies accepted by the largest number of citizens. However, the security mechanisms widely used on the Internet are too heavy to be integrated on small constrained objects. This paper describes the current protocols and security solutions that can be deployed in constrained resources. It shows the benefits and the limitations of each scheme -the security extension of IEEE 802.15.4e in Time Synchronization Channel Hopping (TSCH) mode , compressed IPsec, DTLS -embedded at different levels of the OSI model into the 6LoWPAN stack. It opens with the challenges one must tackle in the coming years. Several use cases are studied to envisage the security integration in Cyber Physical Systems for host-to-host and host-to-network communications. The privacy issue is also addressed and different ways to hide the device identity are discussed.
International audienceFinding entropy sources is a major issue to design non-deterministic random generators for headless devices. Our goal is to evaluate a collection of sensors (e.g. thermometer, accelerometer, magnetometer) as potential sources of entropy. A challenge in the analysis of these sources is the estimation of min-entropy. We have followed the NIST recommendations to obtain pessimistic estimations from the dataset collected during our campaign of experiments. The most interesting sensors of our study are: the accelerometer, the magnetometer, the vibration sensor and the internal clock. Contrary to previous results, we observe far less entropy than it was expected before. Other sensors which measures phenomena with high inertia such as the temperature or air pressure provide very little entropy
HAL is a multidisciplinary open access archive for the deposit and dissemination of scientific research documents, whether they are published or not. The documents may come from teaching and research institutions in France or abroad, or from public or private research centers. L'archive ouverte pluridisciplinaire HAL, est destinée au dépôt et à la diffusion de documents scientifiques de niveau recherche, publiés ou non, émanant des établissements d'enseignement et de recherche français ou étrangers, des laboratoires publics ou privés.
scite is a Brooklyn-based organization that helps researchers better discover and understand research articles through Smart Citations–citations that display the context of the citation and describe whether the article provides supporting or contrasting evidence. scite is used by students and researchers from around the world and is funded in part by the National Science Foundation and the National Institute on Drug Abuse of the National Institutes of Health.
customersupport@researchsolutions.com
10624 S. Eastern Ave., Ste. A-614
Henderson, NV 89052, USA
Copyright © 2024 scite LLC. All rights reserved.
Made with 💙 for researchers
Part of the Research Solutions Family.