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Browsing School of Arts and Sciences by Author "Otrok, Hadi"

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Browsing School of Arts and Sciences by Author "Otrok, Hadi"

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  • An android-based trojan spyware to study the notificationlistener service vulnerability 
    Abualola, Huda; Alhawai, Hessa; Kadadha, Maha; Otrok, Hadi; Mourad, Azzam (2017-03-14)
    Security attacks continue to emerge on daily basis due to the fast growth in the number of smart devices and mobile applications. Attacks take different malware forms such as Spyware and Trojan exploiting different operating ...
  • Attacking ElGamal based cryptographic algorithms using Pollard's rho algorithm 
    El-Kassar, A. N.; Haraty, Ramzi A.; Otrok, Hadi (IEEE, 2017-04-05)
    Summary form only given. In 1985 a powerful and practical public-key scheme was produced by ElGamal; his work was applied using large prime integers. El-Kassar et al. and El-Kassar and Haraty modified the ElGamal public-key ...
  • Botnet detection 
    Al Ebri, Noura; Otrok, Hadi; Mourad, Azzam; Al-Hammadi, Yousof (IEEE, 2017-03-10)
    In this paper, we address the problem of botnet detection by correlating information from trusted hosts and network. Botnets are groups of compromised computers controlled by a botmaster through a command and control (C&C) ...
  • CEAP 
    Abdel Wahab, Omar; Mourad, Azzam; Otrok, Hadi; Bentahar, Jamal (2017-02-06)
    The infrastructureless and decentralized nature of Vehicular Ad Hoc Network (VANET) makes it quite vulnerable to different types of malicious attacks. Detecting such attacks has attracted several contributions in the past ...
  • A cluster-based model for QoS-OLSR protocol 
    Otrok, Hadi; Mourad, Azzam; Robert, Jean-Marc; Moati, Nadia; Sanadiki, Hiba (IEEE, 2017-03-09)
    The QOLSR is a multimedia protocol that was designed on top of the Optimized Link State Routing (OLSR) protocol. It considers the Quality of Service (QoS) of the nodes during the selection of the Multi-Point Relay (MPRs) ...
  • A Comparative Study of Elgamal Based Cryptographic Algorithms 
    Haraty, Ramzi A.; El-Kassar, A. N.; Otrok, Hadi (INSTICC, 2017-06-29)
    In 1985 a powerful and practical public-key scheme was produced by ElGamal; his work was applied using large prime integers. El-Kassar et al. and El-Kassar and Haraty modified the ElGamal public-key encryption scheme from ...
  • A Comparative Study of Elgamal Based Cryptographic Algorithms 
    Haraty, Ramzi A.; El-Kassar, A. N.; Otrok, Hadi (2018-03-22)
  • A Comparative Study of RSA based Cryptographic Algorithms 
    Haraty, Ramzi A.; El-Kassar, A. N.; Otrok, Hadi (ISCA, 2018-01-23)
  • A Comparative Study of RSA-Based Cryptographic Algorithms 
    Haraty, Ramzi A.; El-Kassar, A. N.; Otrok, Hadi (2018-03-22)
  • A cooperative detection model based on artificial neural network for VANET QoS-OLSR protocol 
    El Khatib, Amjad; Mourad, Azzam; Otrok, Hadi; Abdel Wahab, Omar; Bentahar, Jamal (IEEE, 2017-03-09)
    In this paper, we address the problem of detecting misbehaving vehicles in Vehicular Ad-Hoc Network using VANET QoS-OLSR, Quality of Service-Optimized Link State Routing protocol. VANET QoS-OLSR is a clustering protocol ...
  • A cooperative watchdog model based on Dempster–Shafer for detecting misbehaving vehicles 
    Abdel Wahab, Omar; Otrok, Hadi; Mourad, Azzam (2015-11-24)
    In this paper, we address the problem of detecting misbehaving vehicles in Vehicular Ad Hoc Network (VANET) using Quality of Service Optimized Link State Routing (QoS-OLSR) protocol. According to this protocol, vehicles ...
  • A Dempster–Shafer Based Tit-for-Tat Strategy to Regulate the Cooperation in VANET Using QoS-OLSR Protocol 
    Abdel Wahab, Omar; Otrok, Hadi; Mourad, Azzam (2015-11-24)
    In this paper, we address the problem of cooperation among vehicles in VANET using QoS-OLSR protocol in the presence of selfish nodes. QoS-OLSR is a proactive protocol that considers the Quality of Service (QoS) of the ...
  • Detecting attacks in QoS-OLSR protocol 
    Sanadiki, Hiba; Otrok, Hadi; Mourad, Azzam; Robert, Jean-Marc (IEEE, 2017-03-10)
    In this paper, we detect two attacks targeting the QoS-OLSR protocol MANET. The Cluster-based model QoS-OLSR is a multimedia protocol designed on top of Optimized Link State Routing (OLSR) protocol. The quality of service ...
  • Few are as Good as Many: An Ontology-Based Tweet Spam Detection Approach 
    Halawi, Bahia; Mourad, Azzam; Otrok, Hadi; Damiani, Ernesto (2021-04-15)
    Due to the high popularity of Twitter, spammers tend to favor its use in spreading their commercial messages. In the context of detecting twitter spams, different statistical and behavioral analysis approaches were proposed. ...
  • From model-driven specification to design-level set-based analysis of XACML policies 
    Mourad, Azzam; Tout, Hanine; Talhi, Chamseddine; Otrok, Hadi; Yahyaoui, Hamdi (2017-02-06)
    With lot of hype surrounding policy-based computing, XACML (eXtensible Access Control Markup Language) has become the widely used de facto standard for managing access to open and distributed service-based environments ...
  • How to distribute the detection load among virtual machines to maximize the detection of distributed attacks in the cloud? 
    Abdel Wahab, Omar; Bentahar, Jamal; Otrok, Hadi; Mourad, Azzam (IEEE, 2017-03-09)
    Security has been identified to be the principal stumbling-block preventing users and enterprises from moving their businesses to the cloud. The reason is that cloud systems, besides inheriting all the vulnerabilities of ...
  • I know you are watching me 
    Abdel Wahab, Omar; Bentahar, Jamal; Otrok, Hadi; Mourad, Azzam (IEEE Xplore, 2018-08-14)
    Insider attacks in which misbehaving Virtual Machines (VMs) take part of the cloud system and learn about its internal vulnerabilities constitute a major threat against cloud resources and infrastructure. This demands ...
  • Misbehavior detection framework for community-based cloud computing 
    Abdel Wahab, Omar; Bentahar, Jamal; Otrok, Hadi; Mourad, Azzam (IEEE, 2017-03-09)
    The success and continuation of cloud computing depends to a large extent on the quality and performance of the offered services. We propose in this paper a novel architecture for cloud computing called Community-based ...
  • Model-Driven Specification and Design-Level Analysis of XACML Policies 
    Tout, Hanine; Mourad, Azzam; Talhi, Chamseddine; Otrok, Hadi; Yahyaoui, Hamdi (2020-09-08)
    Throughout the recent years, Web services security has been the target of many researchers. Particularly, by integrating policies and rules to govern the Web services behaviors at runtime, researchers have been able to ...
  • New approach for the dynamic enforcement of Web services security 
    Mourad, Azzam; Ayoubi, Sara; Yahyaoui, Hamdi; Otrok, Hadi (IEEE, 2017-03-08)
    We propose in this paper a new approach for the dynamic enforcement of Web services security, which is based on a synergy between Aspect-Oriented Programming (AOP) and composition of Web services. Security policies are ...

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