Current Issue

Sana'a University Journal of Applied Sciences and Technology

Vol. 1 No. 3 (2023)

2023-09-20

7 Articles

The first volume - the third issue in the Sana'a University Journal of Applied Sciences and Technology

Article

7 Articles

Investigation of the Structural and Mechanical Properties of ((82-X) Sn –XCu -18 In) % Alloy with X= 1,2,3,4and 5

Shaima Ali Ahmed Al-Aghbary

2023-09-20

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DOI: 10.59628/jast.v1i3.487

The effective beam width of a partially coherent rectangular mul-ti-Gaussian Schell-model vortex beam propagating in a turbulent plasma

H. O. AL-Nadary, Abdu Ahmed Alkelly, M. A. H. Khaled, Labiba F. Hassan

2023-09-20

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DOI: 10.59628/jast.v1i3.494

Suggestion Cybersecurity Framework (CSF) for Reducing Cyber-Attacks on Information Systems

Abdulkarem Yahya Abohatem , Fadl M.M. Ba-Alwi, Abdualmajed Ahmed Al-Khulaidi

2023-09-20

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DOI: 10.59628/jast.v1i3.248

Localized Plastic Deformation and Microstructure Properties of Al/Si Alloy Improved with Al3Ni Compound

Shakib Alsowidy

2023-09-20

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DOI: 10.59628/jast.v1i3.522

Development Metrics for Intelligent Systems

Motea.M. Aljafare, Mansoor N. Ali Marhoob

2023-09-20

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DOI: 10.59628/jast.v1i3.294

Developing a Model for Offline Signature Verification Using CNN Architectures and Genetic Algorithm

Abdulbaset Mohammed Qaied Musleh, Abdoulwase Mohammed Obaid Al-Azzani

2023-09-20

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DOI: 10.59628/jast.v1i3.314

Hierarchical Blockchain as Line Defense of Attacks to Messages Propagation in VANET

Firdaus AlHrazi, Malek Algabri, Abdualmajed Ahmed Al-Khulaidi

2023-09-20

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DOI: 10.59628/jast.v1i3.370

Abstract

The Vehicle Network (VANET) is a component of the Intelligent Transport System (ITS), for the exchange of messages between vehicles and roadside units (RSU). While due to the increase in the number of vehicles, there have been a lot of privacy, trust, and security challenges related to the Vehicle Network (VANET). The information exchanged between vehicles must be correct to achieve the CIA principle. Trust, privacy, and security solutions don’t apply to centralized networks. Most importantly, the lack of confidentiality, privacy, and availability. In this paper, solutions to solve security problems using hierarchical blockchain technology will be presented. Hierarchical blockchain has the advantages of unanimously emphasizing message credibility, decentralization, and immutable storage. All these advantages will provide solutions to those problems and challenges related to the security of VANETs. This paper seeks two main objectives. The first is to monitor malicious and no malicious vehicles by UAV, to validate the message before sending it via VANET. The second is a set of complex rules and specific calculations to verify the message. Consensus algorithms are also used to agree among vehicles on what is true, and to evaluate performance using the following metrics (Throughput, tolerance, latency).