Cooperative group key generation using IR-UWB multipath channels
| Autor: | Benoit Denis, Iulia Tunaru, Regis Perrier, Bernard Uguen |
|---|---|
| Přispěvatelé: | Institut d'Électronique et des Technologies du numéRique (IETR), Nantes Université (NU)-Université de Rennes 1 (UR1), Université de Rennes (UNIV-RENNES)-Université de Rennes (UNIV-RENNES)-Institut National des Sciences Appliquées - Rennes (INSA Rennes), Institut National des Sciences Appliquées (INSA)-Université de Rennes (UNIV-RENNES)-Institut National des Sciences Appliquées (INSA)-CentraleSupélec-Centre National de la Recherche Scientifique (CNRS), Commissariat à l'énergie atomique et aux énergies alternatives - Laboratoire d'Electronique et de Technologie de l'Information (CEA-LETI), Direction de Recherche Technologique (CEA) (DRT (CEA)), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA), European Project: 609112,EC:FP7:ICT,FP7-SMARTCITIES-2013,SOCIOTAL(2013), Université de Nantes (UN)-Université de Rennes (UR)-Institut National des Sciences Appliquées - Rennes (INSA Rennes), Institut National des Sciences Appliquées (INSA)-Institut National des Sciences Appliquées (INSA)-CentraleSupélec-Centre National de la Recherche Scientifique (CNRS), Université de Nantes (UN)-Université de Rennes 1 (UR1) |
| Jazyk: | angličtina |
| Rok vydání: | 2015 |
| Předmět: |
Key generation
Engineering business.industry Mesh networking Physical layer Ultra-wideband [SPI.TRON]Engineering Sciences [physics]/Electronics [INFO.INFO-NI]Computer Science [cs]/Networking and Internet Architecture [cs.NI] Symmetric-key algorithm Wireless business Computer network Group key Communication channel Computer Science::Information Theory |
| Zdroj: | ICUWB 2015-2015 IEEE International Conference on Ubiquitous Wireless Broadband ICUWB 2015-2015 IEEE International Conference on Ubiquitous Wireless Broadband, Oct 2015, Montreal, Canada. pp.1-5, ⟨10.1109/ICUWB.2015.7324430⟩ ICUWB |
| Popis: | International audience; In wireless decentralized networks, nodes physically close to each other can take advantage of the shared wireless medium to generate common secrets or keys and enhance the security of communications. Previous studies already provided models, algorithms, and proofs of concept to exploit the radio physical layer and generate symmetric keys over single links. Some of these models have been adapted to cooperative scenarios involving several nodes, either to reinforce the generated pairwise keys or to issue a common group key (i.e., shared by more than two nodes). In this study, we focus on key agreement from Impulse Radio - Ultra Wideband (IR-UWB) multipath channels according to the source model. We propose a new method to generate group keys within cooperative scenarios, while exploiting all the available physical links in a full mesh topology and reducing over-the-air traffic. The main idea consists in adjusting the IR-UWB signals usually transmitted for channel probing so that receiving nodes have access to non-observable channels corresponding to their non-adjacent links. We describe an example where the transmitted signal is optimized using a least squares minimization routine with prior information. |
| Databáze: | OpenAIRE |
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