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Dissertations / Theses on the topic 'Reputational attack'

Author: Grafiati

Published: 28 May 2022

Last updated: 31 July 2025

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1

Кролевецький, П. А. "Інформаційне та програмне забезпечення системи виявлення репутаційних атак в соціальних мережах". Master's thesis, Сумський державний університет, 2018. http://essuir.sumdu.edu.ua/handle/123456789/72320.

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2

Jackson, David. "Exploiting Rogue Signals to Attack Trust-based Cooperative Spectrum Sensing in Cognitive Radio Networks." VCU Scholars Compass, 2013. http://scholarscompass.vcu.edu/etd/3072.

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Cognitive radios are currently presented as the solution to the ever-increasing spectrum shortage problem. However, their increased capabilities over traditional radios introduce a new dimension of security threats. Cooperative Spectrum Sensing (CSS) has been proposed as a means to protect cognitive radio networks from the well known security threats: Primary User Emulation (PUE) and Spectrum Sensing Data Falsification (SSDF). I demonstrate a new threat to trust-based CSS protocols, called the Rogue Signal Framing (RSF) intrusion. Rogue signals can be exploited to create the illusion of malic

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3

Kačic, Matej. "Analýza útoků na bezdrátové sítě." Doctoral thesis, Vysoké učení technické v Brně. Fakulta informačních technologií, 2018. http://www.nusl.cz/ntk/nusl-412597.

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This work describes security mechanisms of wireless network based on 802.11 standard and security enhancement 802.11i of these networks known as WPA2, where the analysis of vulnerabilities and attacks on these networks were performed. The work discusses two major security issues. The first is unsecure management frames responsible for vulnerability with direct impact on availability and the other is the vulnerability that allows executing the impersonalize type of attacks. The system for generation attacks was designed to realize any attack very fast and efficient. The core of the thesis is th

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4

Bartoš, Václav. "Reputace zdrojů škodlivého provozu." Doctoral thesis, Vysoké učení technické v Brně. Fakulta informačních technologií, 2019. http://www.nusl.cz/ntk/nusl-412603.

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An important part of maintaining network security is collecting and processing information about cyber threats, both from network operator's own detection tools and from third parties. A commonly used type of such information are lists of network entities (IP addresses, domains, URLs, etc.) which were identified as malicious. However, in many cases, the simple binary distinction between malicious and non-malicious entities is not sufficient. It is beneficial to keep other supplementary information for each entity, which describes its malicious activities, and also a summarizing score, which ev

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5

Alzaid, Hani Mohammed. "Secure data aggregation in wireless sensor networks." Thesis, Queensland University of Technology, 2011. https://eprints.qut.edu.au/41843/1/Hani_Alzaid_Thesis.pdf.

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A Wireless Sensor Network (WSN) is a set of sensors that are integrated with a physical environment. These sensors are small in size, and capable of sensing physical phenomena and processing them. They communicate in a multihop manner, due to a short radio range, to form an Ad Hoc network capable of reporting network activities to a data collection sink. Recent advances in WSNs have led to several new promising applications, including habitat monitoring, military target tracking, natural disaster relief, and health monitoring. The current version of sensor node, such as MICA2, uses a 16 bit, 8

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6

Shaikh, Sajid S. "COMPUTATION IN SOCIAL NETWORKS." Kent State University / OhioLINK, 2007. http://rave.ohiolink.edu/etdc/view?acc_num=kent1185560088.

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7

Zhao, Yuchen. "Recommending privacy preferences in location-sharing services." Thesis, University of St Andrews, 2017. http://hdl.handle.net/10023/11055.

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Location-sharing services have become increasingly popular with the proliferation of smartphones and online social networks. People share their locations with each other to record their daily lives or satisfy their social needs. At the same time, inappropriate disclosure of location information poses threats to people's privacy. One of the reasons why people fail to protect their location privacy is the difficulty of using the current mechanisms to manually configure location-privacy settings. Since people's location-privacy preferences are context-aware, manual configuration is cumbersome. Pe

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8

Amari, Houda. "Smart models for security enhancement in the internet of vehicles." Electronic Thesis or Diss., Normandie, 2023. http://www.theses.fr/2023NORMC248.

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Avec les progrès réalisés au cours de la dernière décennie dans les Systèmes de Transport Intelligents (STI), les progrès technologiques dans le domaine véhciculaire à connu une évolution qui a donné naissance au paradigme prometteur de l'Internet des véhicules (IoV), attirant l'attention de nombreux chercheurs et inudstriels. Il est à noter que l'Internet des véhicules (IoV) vise à améliorer l'efficacité des transports, la sécurité et le confort des passagers en échangeant des informations sur la circulation et l'infodivertissement avec des véhicules connectés. La multitude de technologies d'

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9

Tan, Heng Chuan. "Vers des communications de confiance et sécurisées dans un environnement véhiculaire." Thesis, Paris, ENST, 2017. http://www.theses.fr/2017ENST0063/document.

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Le routage et la gestion des clés sont les plus grands défis dans les réseaux de véhicules. Un comportement de routage inapproprié peut affecter l’efficacité des communications et affecter la livraison des applications liées à la sécurité. D’autre part, la gestion des clés, en particulier en raison de l’utilisation de la gestion des certificats PKI, peut entraîner une latence élevée, ce qui peut ne pas convenir à de nombreuses applications critiques. Pour cette raison, nous proposons deux modèles de confiance pour aider le protocole de routage à sélectionner un chemin de bout en bout sécurisé

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10

Tan, Heng Chuan. "Vers des communications de confiance et sécurisées dans un environnement véhiculaire." Electronic Thesis or Diss., Paris, ENST, 2017. http://www.theses.fr/2017ENST0063.

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Le routage et la gestion des clés sont les plus grands défis dans les réseaux de véhicules. Un comportement de routage inapproprié peut affecter l’efficacité des communications et affecter la livraison des applications liées à la sécurité. D’autre part, la gestion des clés, en particulier en raison de l’utilisation de la gestion des certificats PKI, peut entraîner une latence élevée, ce qui peut ne pas convenir à de nombreuses applications critiques. Pour cette raison, nous proposons deux modèles de confiance pour aider le protocole de routage à sélectionner un chemin de bout en bout sécurisé

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11

Qureshi, Basit I., Geyong Min, and Demetres D. Kouvatsos. "Countering the collusion attack with a multidimensional decentralized trust and reputation model in disconnected MANETs." 2013. http://hdl.handle.net/10454/9718.

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No<br>The FIRE trust and reputation model is a de-centralized trust model that can be applied for trust management in unstructured Peer-to-Peer (P2P) overlays. The FIRE model does not, however, consider malicious activity and possible collusive behavior in nodes of network and it is therefore susceptible to collusion attacks. This investigation reveals that FIRE is vulnerable to lying and cheating attacks and presents a trust management approach to detect collusion in direct and witness interactions among nodes based on colluding node's history of interactions. A witness ratings based graph bu

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12

Galeazzi, Alessandro, and 葛艾德. "Reputation and Spectrum Sensing Data Fusion Mechanism for Mitigating a Falsification Attack in Cognitive Radio Network." Thesis, 2018. http://ndltd.ncl.edu.tw/handle/g5f3zy.

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碩士<br>國立臺灣大學<br>電信工程學研究所<br>106<br>Cognitive Radio Network appears to be one of the suitable technologies to realize shared accesses of licensed spectrum by secondary users for increasing spectrum efficiency. One main advantage of Cognitive Radio Network is the possibility to implement a distributed cooperative spectrum sensing mechanism. Although it has been proven that the distributed sensing paradigm has many advantages respect to a centralized approach, it leaves rooms for new security threats such as Spectrum Sensing Data Falsification attack, where malicious users inject fake spectrum in

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13

Padhan, Sanjeeb Kumar, and Soumya Ranjan Mund. "A power efficient method against misbehaving node in reputation system to prevent sybil attack in mobile ad-hoc network." Thesis, 2012. http://ethesis.nitrkl.ac.in/3827/1/Final_Year_Project(Sanjeeb_and_Soumya).pdf.

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Mobile ad-hoc network has become a very important field of study for students and researchers owing to its wide application. In mobile ad-hoc network all nodes are responsible for routing and forwarding of packets, hence all nodes are required to act selflessly for proper functioning of mobile ad-hoc network. The presence of selfish behavior in a node can degrade the performance of the mobile ad hoc network to a large extent. Several works have been done for identification and punishment of the misbehaving nodes in mobile ad hoc network. We propose here a method where some selected neighbors a

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14

Joosub, Tasneem Suliman. "Risk management strategies to maintain corporate reputation." Diss., 2006. http://hdl.handle.net/10500/2433.

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All companies, are vulnerable to events that could impact their reputation. These events can arise from various factors, such as a company's employment practices, economics, natural disasters, pollution, poor governance or poor management. Effective risk managers identify the different circumstances and factors that may impact on the reputation of a company, prior to the incident occurring. In order to assist risk managers, this dissertation proposes a structured approach to the management of reputational risks, which would ensure that the impact on the reputation of the company is minimised.

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15

許鈺祥. "Exploring the Crisis Response Strategy and Reputation of R.O.C Military from the Cognitive Gap Perspective – A Case Study of the Fast Attack Craft Guided Missile." Thesis, 2018. http://ndltd.ncl.edu.tw/handle/grhe38.

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碩士<br>國防大學政治作戰學院<br>新聞碩士班<br>106<br>The R.O.C military must deal with "crisis" very carefully, to protect its image and reputation from the citizens. The very first principle of resolving the crisis is to carry out "crisis communication." The focus is on reducing the harm of the crisis to the organization so that the target audience can accept the organization's response to crisis events. On the night of March 18, 2017, the Navy's Fast Attack Craft Guided missile collided with an entertainment fishing boat. Although the Navy had explained to the public that weather factors caused the incident,

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16

Mahmoud, Mohamed Mohamed Elsalih Abdelsalam. "Efficient Packet-Drop Thwarting and User-Privacy Preserving Protocols for Multi-hop Wireless Networks." Thesis, 2011. http://hdl.handle.net/10012/5905.

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In multi-hop wireless network (MWN), the mobile nodes relay others’ packets for enabling new applications and enhancing the network deployment and performance. However, the selfish nodes drop the packets because packet relay consumes their resources without benefits, and the malicious nodes drop the packets to launch Denial-of-Service attacks. Packet drop attacks adversely degrade the network fairness and performance in terms of throughput, delay, and packet delivery ratio. Moreover, due to the nature of wireless transmission and multi-hop packet relay, the attackers can analyze the network tr

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