scholarly journals An improved efficient anonymous authentication with conditional privacy-preserving scheme for VANETs

PLoS ONE ◽  
2021 ◽  
Vol 16 (9) ◽  
pp. e0257044
Author(s):  
Eko Fajar Cahyadi ◽  
Min-Shiang Hwang
Keyword(s):  
Secure Communication ◽  
Vehicular Ad Hoc Networks ◽  
Ad Hoc ◽  
Privacy Preserving ◽  
Security And Privacy ◽  
Secret Key ◽  
Forgery Attack ◽  
Anonymous Authentication ◽  
Computation Efficiency ◽  
Hoc Networks

The study of security and privacy in vehicular ad hoc networks (VANETs) has become a hot topic that is wide open to discussion. As the quintessence of this aspect, authentication schemes deployed in VANETs play a substantial role in providing secure communication among vehicles and the surrounding infrastructures. Many researchers have proposed a variety of schemes related to information verification and computation efficiency in VANETs. In 2018, Kazemi et al. proposed an evaluation and improvement work towards Azees et al.’s efficient anonymous authentication with conditional privacy-preserving (EAAP) scheme for VANETs. They claimed that the EAAP suffered from replaying attacks, impersonation attacks, modification attacks, and cannot provide unlinkability. However, we also found out if Kazemi et al.’s scheme suffered from the unlinkability issue that leads to a forgery attack. An adversary can link two or more messages sent by the same user by applying Euclid’s algorithm and derives the user’s authentication key. To remedy the issue, in this paper, we proposed an improvement by encrypting the message using a shared secret key between sender and receiver and apply a Nonce in the final message to guarantee the unlinkability between disseminated messages.

scholarly journals Internet of Vehicles over Vanets: Smart and Secure Communication using IoT

2020 ◽  
Vol 21 (3) ◽  
pp. 425-440 ◽  
Author(s):  
Sumit Kumar ◽  
Jaspreet Singh
Keyword(s):  
Traffic Congestion ◽  
Secure Communication ◽  
Vehicular Ad Hoc Networks ◽  
Ad Hoc ◽  
Data Communication ◽  
Security And Privacy ◽  
The Internet ◽  
Time Data ◽  
Internet Of Vehicles ◽  
Hoc Networks

The new age of the Internet of Things (IoT) is motivating the advancement of traditional Vehicular Ad-Hoc Networks (VANETs) into the Internet of Vehicles (IoV). This paper is an overview of smart and secure communications to reduce traffic congestion using IoT based VANETs, known as IoV networks. Studies and observations made in this paper suggest that the practice of combining IoT and VANET for a secure combination has rarely practiced. IoV uses real-time data communication between vehicles to everything (V2X) using wireless communication devices based on fog/edge computing; therefore, it has considered as an application of Cyber-physical systems (CPS). Various modes of V2X communication with their connecting technologies also discussed. This paper delivers a detailed introduction to the Internet of Vehicles (IoV) with current applications, discusses the architecture of IoV based on currently existing communication technologies and routing protocols, presenting different issues in detail, provides several open research challenges and the trade-off between security and privacy in the area of IoV has reviewed. From the analysis of previous work in the IoV network, we concluded the utilization of artificial intelligence and machine learning concept is a beneficial step toward the future of IoV model.

scholarly journals Mix-Context-Based Pseudonym Changing Privacy Preserving Authentication in VANETs

2019 ◽  
Vol 2019 ◽  
pp. 1-9 ◽  
Author(s):  
Mengjia Zeng ◽  
Huibin Xu
Keyword(s):  
Secure Communication ◽  
Vehicular Ad Hoc Networks ◽  
Ad Hoc ◽  
Mutual Authentication ◽  
Privacy Preserving ◽  
Computational Costs ◽  
Authentication Mechanism ◽  
Authentication Schemes ◽  
Hoc Networks ◽  
Significant Attention

Vehicular ad hoc networks (VANETs) have attracted significant attention in academia insofar as they can provide reliable and secure communication between vehicles. It is thus essential to ensure security and preserve privacy. In this paper, we propose mix-context-based pseudonym changing privacy-preserving authentication (MPCPA). MPCPA introduces privacy protection through a mutual authentication mechanism to prevent attack-vehicles from sneaking into a VANET system. Moreover, it preserves the integrity of transmitted messages with an anonymous authentication mechanism. In addition, MPCPA adopts a mix-context-based pseudonym changing strategy to prevent vehicle tracking. A performance analysis demonstrates that MPCPA incurs low computational costs and offers a privacy-preserving scheme that is more secure than existing authentication schemes.

scholarly journals SE-CPPA: A Secure and Efficient Conditional Privacy-Preserving Authentication Scheme in Vehicular Ad-Hoc Networks

Sensors ◽  
2021 ◽  
Vol 21 (24) ◽  
pp. 8206
Author(s):  
Mahmood A. Al-Shareeda ◽  
Mohammed Anbar ◽  
Selvakumar Manickam ◽  
Iznan H. Hasbullah
Keyword(s):  
Ad Hoc Networks ◽  
Hash Function ◽  
Vehicular Ad Hoc Networks ◽  
Ad Hoc ◽  
Privacy Preserving ◽  
Security And Privacy ◽  
Group Signature ◽  
Communication Costs ◽  
Short Period ◽  
Hoc Networks

Communications between nodes in Vehicular Ad-Hoc Networks (VANETs) are inherently vulnerable to security attacks, which may mean disruption to the system. Therefore, the security and privacy issues in VANETs are entitled to be the most important. To address these issues, the existing Conditional Privacy-Preserving Authentication (CPPA) schemes based on either public key infrastructure, group signature, or identity have been proposed. However, an attacker could impersonate an authenticated node in these schemes for broadcasting fake messages. Besides, none of these schemes have satisfactorily addressed the performance efficiency related to signing and verifying safety traffic-related messages. For resisting impersonation attacks and achieving better performance efficiency, a Secure and Efficient Conditional Privacy-Preserving Authentication (SE-CPPA) scheme is proposed in this paper. The proposed SE-CPPA scheme is based on the cryptographic hash function and bilinear pair cryptography for the signing and verifying of messages. Through security analysis and comparison, the proposed SE-CPPA scheme can accomplish security goals in terms of formal and informal analysis. More precisely, to resist impersonation attacks, the true identity of the vehicle stored in the tamper-proof device (TPD) is frequently updated, having a short period of validity. Since the MapToPoint hash function and a large number of cryptography operations are not employed, simulation results show that the proposed SE-CPPA scheme outperforms the existing schemes in terms of computation and communication costs. Finally, the proposed SE-CPPA scheme reduces the computation costs of signing the message and verifying the message by 99.95% and 35.93%, respectively. Meanwhile, the proposed SE-CPPA scheme reduces the communication costs of the message size by 27.3%.

scholarly journals A Practical Authentication Framework for VANETs

2019 ◽  
Vol 2019 ◽  
pp. 1-11 ◽  
Author(s):  
Baosheng Wang ◽  
Yi Wang ◽  
Rongmao Chen
Keyword(s):  
Performance Analysis ◽  
Ad Hoc Networks ◽  
Vehicular Ad Hoc Networks ◽  
Ad Hoc ◽  
Privacy Preserving ◽  
Security Requirements ◽  
Security And Privacy ◽  
High Security ◽  
Hoc Networks ◽  
Privacy Issues

In vehicular ad hoc networks (VANETs), conditional privacy preserving authentication (CPPA) scheme is widely deployed to solve security and privacy issues. Existing CPPA schemes usually require ideal tamper-proof devices (TPDs) on vehicles which, however, might be infeasible or do not exist in reality due to high security requirements. To address this problem, we propose a practical framework of CPPA scheme that supports more realistic TPDs which are less secure correspondingly. We demonstrate that this framework also manages to achieve nonframeability in addition to other security objectives including nonrepudiation, conditional privacy preserving, and unlinkability. Moreover, performance analysis shows that our framework has better efficiency in authentication. All these features make our framework practical for VANETs.

scholarly journals Security schemes based on conditional privacy-preserving vehicular ad hoc networks

2021 ◽  
Vol 21 (1) ◽  
pp. 479
Author(s):  
Mahmood A. Al-shareeda ◽  
Mohammed Anbar ◽  
Murtadha A. Alazzawi ◽  
Selvakumar Manickam ◽  
Iznan H. Hasbullah
Keyword(s):  
Ad Hoc Networks ◽  
Vehicular Ad Hoc Networks ◽  
Ad Hoc ◽  
Privacy Preserving ◽  
Security And Privacy ◽  
Performance Parameters ◽  
Related Services ◽  
Privacy Requirements ◽  
Wide Range ◽  
Hoc Networks

Recently, vehicular ad hoc networks (VANETs) have been garnering significant inter-est from the people involved in transportation field. Nowadays automotive manufactur-ers have already supplying vehicles with multitude of road sensors that provides many useful characteristics. VANET communication not only offers the drivers and passen-gers with the various safety related services but also provides a wide range of valuable applications. However, the inherent openness of the wireless communication medium used by VANETs exposes vehicles to various security and privacy issues. Researchers have proposed many security schemes to solve the issues mentioned above for the widespread deployment of VANETs. However, these schemes failed to fulfill all as-pects of security and privacy requirements. Besides, these schemes have not provided the performance parameters such as computation and communication costs. The pri-mary emphasis of this paper is on the taxonomy of security schemes based conditional privacy-preserving with respect to strengths and limitations. Besides, a comparison be-tween these schemes related to the model of security and privacy requirements, attacks, and performance parameters is provided. Finally, this paper critically reviews the re-lated works by taking into consideration the design and development of all VANETs security and privacy schemes, this paper could serve as a guide and reference.

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