20 research outputs found
Empowering Communications in Vehicular Networks with an Intelligent Blockchain-Based Solution
No full textBlockchains have emerged over time as a reliable and secure way to record transactions in an immutable manner in a wide range of application domains. However, current related solutions are not yet capable of appropriately checking the authenticity of data when their volumes are huge. They are not also capable of updating Blockchain data blocks and synchronizing them within reasonable timeframes. This is the case within the specific context of Blockchain vehicular networks, where these solutions are commonly cumbersome when attempting to add new vehicles to the network. In order to address these problems, we propose in this paper a new Blockchain-based solution that intelligently implement selective communication and collaborative endorsement approaches to reduce communications between vehicles. Our solution represents the vehicles of the Blockchain as intelligent software agents with a Belief–Desire–Intention (BDI) architecture. Furthermore, we propose an approach based on multi-endorsement levels to exchange data of varying sensitive categories. This approach, which is based on endorsing scores, is also used to shorten the admission of new vehicles into the Blockchain. We run simulations using the Hyperledger Fabric Blockchain tool. Results show the efficiency of our solution in reducing the processing times of transactions within two different scenarios
MBS: Multilevel Blockchain System for IoT
No full textDespite of their increasing popularity, Internet of Things (IoT) platforms are still suffering from major security problems, particularly during communications between the IoT devices. Indeed, these devices are commonly prone to malicious attacks and require prior mutual authentication to guarantee the confidentiality and security of data being shared as well as a proper network operation. In order to deal with this issue, several researchers have proposed the use of the emergent blockchain paradigm, which has emerged as a key technology that will transform the way in which information will be shared. As this paradigm is facing scalability and flexibility problems, the use of multi-agents systems has been adopted in recent works. However, current solutions are using agents for the rudimentary role of data collection only. In this paper, we propose to secure the IoT platform with a multilevel blockchain system (MBS) where the speed and flexibility of blockchain transactions are enforced by mobile agents which are migrating throughout the IoT network. The simulations of our solution through the Hyperledger Fabric are showing relevant results in terms of response time and energy consumption
Secure and Efficient Blockchain Scheme for the Internet of Bikes
No full textBlockchain has recently emerged as an auspicious technology for enabling vulnerable data to be exchanged anonymously and securely within Intelligent Transportation System (ITS). Furthermore, Blockchain can be used as an access control mechanism to present a decentralized solution to the distributed authentication problem in the Internet of Bikes (IoB). Although several Blockchain access control mechanisms have been proposed to address the security concerns in IoB, most of them are still vulnerable to some active attacks, especially the cloning attacks. Therefore, this paper proposes a new Trust-Based Access Control Blockchain System (TBACS) to address the cloning attack based on using a secure Trusted Digital Ticket (DGT). The simulations of our solution through the Hyperledger Fabric are showing relevant results in terms of communication overhead and the detection probability of cloning attacks
ECASS: an encryption compression aggregation security scheme for secure data transmission in ambient assisted living systems
No full textConsiderable efforts are being spent worldwide to ensure comfortable living environments and decent, on-time assistance to elderly and people requiring healthcare services. Recent advances in data acquisition and communication are allowing revolutionary ambient assisted leaving (AAL) systems to be implemented, where healthcare data are collected and reported on-the-fly to dedicated medical servers for further analysis and actions. Due to the increasing rely on distributed, resource constrained sensing devices, AAL systems are being subject to large number of attacks. In addition to usual high energy consumption and communication overhead, current systems are not yet able to fully safeguard the private data of their users. To overcome these shortcomings, we propose in this paper to combine the use of cryptography, compressed sensing, and steganography into a new generic solution called Encryption Compression Aggregation Security Scheme (ECASS). While focusing on the specific case of Medical Healthcare Systems, ECASS aims to secure private data exchanges over wireless networks while achieving lower energy consumption and communication overhead. Our simulations with the NS-2.35 simulator are showing an improvement of 40 and 50% in terms of energy consumption and communication overhead respectively compared to the IBE-Lite security scheme.Mbarek, B (reprint author), German Univ Technol Oman GUtech, Athaibah, Oman.
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SeMLAS: An Efficient Secure Multi-Level Authentication Scheme for IoT-Based Smart Home Systems
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