Ismail Mansour

• University of Clermont Auvergne

Wireless sensor networks are a challenging field of research when it comes to security issues. Using low cost sensor nodes with limited resources makes it difficult for cryptographic algorithms to function without impacting energy consumption and latency. In this paper, we focus on key management issues in multi-hop wireless sensor networks. These...

Designing secure communication protocols is not an easy task. Cryptography is often necessary but does not always guarantee the security of protocols as several famous examples attest in the literature. Moreover, in the context of Wireless Sensor Networks (WSNs) the design is even more difficult due to the limited resources of sensor nodes that add...

Once a secure mechanism for authenticated communication is deployed in a Wireless Sensor Network (WSN), several situations may arise: A node can leave the network, a new node can join the network, an intruder could try to join the network or capture a node. Therefore it is important to revoke and renew certain keys that are learned by a malicious n...

Designing secure authentication mechanisms in wireless sensor networks in order to associate a node to a secure network is not an easy task due to the limitations of this type of networks. In this paper, we propose different multi-hop node authentication protocols for wireless sensor networks. For each protocol, we provide a formal proof to verify...

Designing secure authentication mechanisms in wireless sensor networks in order to associate a node to a secure network is not an easy task due to the limitations of this type of networks. In this paper, we propose different multihop node authentication protocols for wireless sensor networks. For each protocol, we provide a formal proof using Scyth...

Wireless sensor networks (WSNs) have become an attractive topic for both academic research and the activity of R&D services due to their simple deployment and their potential of application in varied fields (military, environmental, industrial). A WSN is composed of a set of nodes that are supposed to operate and to be energetically autonomous for...

Security aspects in wireless sensor networks is getting more and more attention in the recent years. Wireless sensor networks are being considered for critical applications where the security issues are a priority. The limited capacities of wireless sensor nodes and the complex algorithms of the security protocols make the subject challenging. Secu...

Wireless sensor networks are being more and more considered for critical applications where security issues are a priority. Security protocols are based on complicated algorithms that are very time consuming. The limited processing capabilities of sensor nodes make these protocols even more time consuming. Security algorithms based on the theory of...

The security aspect of wireless sensor networks has taken the attention of numerous researchers in the past several years. It has recently been proven that public keys are now feasible in wireless sensor networks but still consume a lot of processing time and memory. In this paper we propose the use of public keys based on ECC to exchange symmetric...