scholarly journals Modeling Elliptical Curve Cryptography Keys using Back Propagation Algorithm

2019 ◽  
Vol 8 (9S3) ◽  
pp. 1525-1529
Keyword(s):  
Ad Hoc Networks ◽  
Secure Communication ◽  
Vehicular Ad Hoc Networks ◽  
Ad Hoc ◽  
Back Propagation ◽  
Back Propagation Algorithm ◽  
Public And Private ◽  
Moving Vehicles ◽  
Identity Based ◽  
Hoc Networks

Vehicular Ad Hoc Networks (VANETs) are the newest for of Ad Hoc Networks in which moving vehicles act as routers and nodes to form a network. VANETs use many cryptographic approaches like symmetric key approaches, public key approaches, certificate revocation, pseudonym based approaches, identity-based cryptography, identity-based signature, Elliptical Curve Cryptography (ECC) etc. for secure communication. These techniques use public and private keys for enhancing the security of messages and all these keys are stored on hardware devices like TPDs (Temper Proof Devices) in VANETs. TPDs are protected by the cryptographic algorithms. In this present era of technology these algorithms and their online simulators are freely available on internet and can be easily intruded. There is a potential need to enhance the security of these keys. In this paper we worked on enhancing the security of ECC keys stored in TPDs of VANETs using a specific network of Artificial Neural Networks.

An Illustrative Study of Vehicle Ad-Hoc Network Security using Advanced Encryption Standard Algorithm

2021 ◽  
Vol 7 (2) ◽  
Author(s):  
Akshay Kumar MV ◽  
Amogh C ◽  
Bhuvan S Kashyap ◽  
Drupad N Maharaj ◽  
Shazia Sultana
Keyword(s):  
Ad Hoc Networks ◽  
Secure Communication ◽  
Vehicular Ad Hoc Networks ◽  
Ad Hoc ◽  
Transport Systems ◽  
Advanced Encryption Standard ◽  
Intelligent Transport System ◽  
Road Accidents ◽  
Intelligent Transport ◽  
Hoc Networks

India accounts for the highest road accidents and traffic congestion globally. The necessity for a canny vehicle framework is of great importance. VANET, abbreviated as Vehicular ad hoc networks is a network created in an ad hoc manner where different vehicles can exchange useful information among each other with dedicated servers ensuring safe travel. Security in VANET has always been a challenge in implementing a real time intelligent transport system. VANET is a type of mobile ad-hoc, to give correspondences among close by vehicles and among vehicles and close by fixed hardware. Vehicular ad hoc networks are highly dynamic in nature and suffer from frequent path breakage due to the high velocity of the moving vehicle. Hence, there are many security challenges and different types of attacks that makes VANETs less secure. Therefore, providing secure dedicated short-range communication (DSRC) easefully with any loss of data or malicious nodes has been a major research area. The major concern being addressed in the paper is to provide secure communication and save lives in road accidents. The role of security is high and messages in DSRC send warning messages to other vehicles. If attackers change these messages, then accidents become a part of the network and users’ lives can be at risk. Different classes of attacks include monitoring attack, social attack, timing attack, application attack and network attack to name a few. Advanced encryption standard is a symmetric block encryption algorithm. There is no evidence to crack this algorithm till date. This paper will provide a detailed overview of VANET architecture, types of attacks on VANET, AES algorithm and its salient features and how this algorithm could be utilized to make intelligent transport systems secure.

Toward a Security Scheme for an Intelligent Transport System

2019 ◽  
pp. 221-236
Author(s):  
Amira Kchaou ◽  
Ryma Abassi ◽  
Sihem Guemara El Fatmi
Keyword(s):  
Ad Hoc Networks ◽  
Transport System ◽  
Secure Communication ◽  
Trust Management ◽  
Vehicular Ad Hoc Networks ◽  
Ad Hoc ◽  
Intelligent Transport System ◽  
Intelligent Transport ◽  
Security Scheme ◽  
Hoc Networks

Vehicular ad-hoc networks (VANETs) allow communication among vehicles using some fixed equipment on roads called roads side units. Vehicular communications are used for sharing different kinds of information between vehicles and RSUs in order to improve road safety and provide travelers comfort using exchanged messages. However, falsified or modified messages can be transmitted that affect the performance of the whole network and cause bad situations in roads. To mitigate this problem, trust management can be used in VANET and can be distributive for ensuring safe and secure communication between vehicles. Trust is a security concept that has attracted the interest of many researchers and used to build confident relations among vehicles. Hence, the authors propose a secured clustering mechanism for messages exchange in VANET in order to organize vehicles into clusters based on vehicles velocity, then CH computes the credibility of message using the reputation of vehicles and the miner controls the vehicle's behavior for verifying the correctness of the message.

scholarly journals Security-aware dual-hop communication for amplify-and-forward relay networks

2019 ◽  
Vol 15 (9) ◽  
pp. 155014771987807
Author(s):  
Fei Ding ◽  
Xiaojun Sun ◽  
Xiaojin Ding ◽  
Ruoyu Su ◽  
Dengyin Zhang ◽  
...  
Keyword(s):  
Ad Hoc Networks ◽  
Secure Communication ◽  
Vehicular Ad Hoc Networks ◽  
Ad Hoc ◽  
Average Power ◽  
Base Station ◽  
Power Scaling ◽  
Message Delivery ◽  
Amplify And Forward ◽  
Hoc Networks

The authentication scheme for vehicular ad hoc networks aims to improve the security and integrity of message delivery. The base station manages a large number of vehicular nodes, so the security communications are non-trivial. In this article, we propose an amplify-and-forward strategy for a dual-hop cooperative network in order to improve secure communications for vehicular ad hoc networks. We assume that each vehicular node equipped with a single antenna and derive closed-form expressions for the secure communication rate calculation. Moreover, we propose a cooperative strategy by jointly considering average power scaling and instantaneous power scaling, which are proved to be able to achieve information security. The simulation result shows that the proposed scheme can achieve better performance in scenarios with different signal-to-noise ratio.

scholarly journals Efficient identity-based authenticated key agreement protocol with provable security for vehicular ad hoc networks

2018 ◽  
Vol 14 (4) ◽  
pp. 155014771877254 ◽  
Author(s):  
Lanjun Dang ◽  
Jie Xu ◽  
Xuefei Cao ◽  
Hui Li ◽  
Jie Chen ◽  
...  
Keyword(s):  
Ad Hoc Networks ◽  
Key Agreement ◽  
Provable Security ◽  
Vehicular Ad Hoc Networks ◽  
Ad Hoc ◽  
Authenticated Key Agreement ◽  
Key Agreement Protocol ◽  
Identity Based ◽  
Hoc Networks ◽  
Agreement Protocols

In vehicular ad hoc networks, establishing a secure channel between any two vehicles is fundamental. Authenticated key agreement is a useful mechanism, which can be used to negotiate a shared key for secure data transmission between authentic vehicles in vehicular ad hoc networks. Among the existing identity-based two-party authenticated key agreement protocols without pairings, there are only a few protocols that provide provable security in strong security models such as the extended Canetti–Krawczyk model. This article presents an efficient pairing-free identity-based one-round two-party authenticated key agreement protocol with provable security, which is more suitable for real-time application environments with highly dynamic topology such as vehicular ad hoc networks than the existing identity-based two-party authenticated key agreement protocols. The proposed protocol is proven secure under the passive and active adversaries in the extended Canetti–Krawczyk model based on the Gap Diffie–Hellman assumption. The proposed protocol can capture all essential security attributes including known-session key security, perfect forward secrecy, basic impersonation resistance, key compromise impersonation resistance, unknown key share resistance, no key control, and ephemeral secrets reveal resistance. Compared with the existing identity-based two-party authenticated key agreement protocols, the proposed protocol is superior in terms of computational cost and running time while providing higher security.

An Efficient Routing Protocol for Vehicular Ad-Hoc Networks

2020 ◽  
Vol 10 ◽  
Author(s):  
Anant Ram
Keyword(s):  
Ad Hoc Networks ◽  
Routing Protocol ◽  
Vehicular Ad Hoc Networks ◽  
Ad Hoc ◽  
High Mobility ◽  
Greedy Forwarding ◽  
Routing Strategy ◽  
Moving Vehicles ◽  
Hoc Networks ◽  
Selection Of

Background: VANETs (Vehicular Ad-Hoc Networks) are the subclass of MANETs, which has recently emerged. Due to its swift changing topology and high mobility nature, it is challenging to design an efficient routing protocol for routing data amongst both moving vehicles and stationary units in VANETs. In addition, the performance of existing routing protocols is not effective due to high mobility characteristics of VANETs. Methods: In this paper, we proposed link reliable routing strategy that makes use of restricted greedy forwarding by considering neighborhood vehicles density and the least, average velocity with its own neighboring vehicles for the selection of next forwarder. Result: The proposed approach take the assumption that at every junction the police patrolling car (i.e. PCR junction node), which forwards the packet to vehicle onto correct road segment only. The link reliability is ensured by the mechanism for the selection of the next forwarder. Conclusion: The objective of this paper is to increase route reliability to provide increase throughput without greatly affecting end-to-end delay. The simulation results reveal that the proposed approach Reliable GPSR(R-GPSR) outperforms existing GPSR and E-GyTAR approach.

Securing Mobile Ad Hoc Networks

2016 ◽  
Vol 7 (1) ◽  
pp. 26-76 ◽  
Author(s):  
Sunil Kumar ◽  
Kamlesh Dutta
Keyword(s):  
Ad Hoc Networks ◽  
Mobile Ad Hoc Networks ◽  
Secure Communication ◽  
Ad Hoc ◽  
Security Threats ◽  
Moving Vehicles ◽  
Proactive Security ◽  
Mobile Ad Hoc ◽  
Hoc Networks ◽  
Future Direction

The flexibility and openness of mobile ad hoc networks (MANETs) make them attractive for various types of applications such as military communication, emergency search and rescue operations, disaster recovery, battlefields, communication between moving vehicles (VANET etc. However, MANETs are highly susceptible to various security threats due to their inherent characteristics that can adversely affect their performance. In order to provide secure communication in mobile ad hoc networks, it is required to understand various possible attacks at different layers of the communication protocol stack. The intent of this paper is to provide structured and comprehensive study of prominent security attacks reported in the literature for mobile ad hoc networks. In addition, we also discuss various well-known reactive and proactive security solutions proposed in literature to prevent those attacks in MANETs. Finally, the paper is concluded with a brief discussion on future direction of research in MANETs.

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