Flying Ad Hoc Networks (FANETs) composed of highly mobile Unmanned Aerial Vehicles (UAVs) are increasingly employed in mission-critical applications. However, the open wireless medium, high mobility, and resource constraints of UAVs expose FANETs to severe security and privacy threats, particularly at the Medium Access Control (MAC) layer. Existing authentication and key agreement schemes often suffer from high computational overhead and insufficient protection against advanced attacks. To address these challenges, this paper proposes a Lightweight Key Agreement Scheme (LWKAS) based on signcryption using Hyper Elliptic Curve Cryptography (HECC) and one-way cryptographic hash functions. The proposed scheme integrates MAC-layer security while simultaneously ensuring secure authentication, confidentiality, and location privacy through the Chinese Remainder Theorem (CRT). The security analysis demonstrates that LWKAS resists multiple attacks, including Man-In-The-Middle (MITM), replay, impersonation, Ephemeral Secret Leakage (ESL), cloning, desynchronization, and DoS attacks. The proposed scheme is implemented in NS-3 and evaluated against existing state-of-the-art methods in terms of authentication delay, communication overhead, and computational cost. The results demonstrate that LWKAS achieves significantly lower computational complexity and communication overhead while providing stronger security guarantees suitable for resource-constrained FANET environments.
Sufian Al Majmaie, G. Ghajari, A. Aldujaili et al.· Applied System Innovation· 0 citations
This paper investigates the impact of internal factors, such as information technology readiness and owner/manager commitment, and external factors, such as regulatory support and competitive pressure, on the use of accounting information systems (AIS) levels among Iraqi small and medium-sized enterprises (SMEs). A quantitative approach via self-administered questionnaires; 190 self-administered questionnaires were distributed to the managers and owners of SMEs in Basra using a purposive sampling technique and analyzed using the partial least squares structural equation modeling (PLS-SEM) approach. The findings of this study demonstrated that internal factors, including information technology readiness and owner/manager commitment, and external factors, including regulatory support and competitive pressure, significantly and positively influenced SMEs’ AIS usage levels. The study provides meaningful contributions by expanding understanding of the use of AIS in controlling processes, operational efficiency, planning processes, and financial reporting, which assist SME managers and owners in sound decision-making and in creating short- and long-term strategies to survive in a competitive market, with a focus on both internal and external factors. The study recommended that the managers and owners could focus on multiple levels of AIS use when developing system processes.
H. Kareem, Mohammed Dauwed, A. Aldujaili· Humanities and Social Scienc...· 0 citations
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