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172 results on '"Mashatan, Atefeh"'

1. Adversarial Explainability: Utilizing Explainable Machine Learning in Bypassing IoT Botnet Detection Systems

Author

Alani, Mohammed M., Mashatan, Atefeh, and Miri, Ali

Subjects
Computer Science - Cryptography and Security
Abstract

Botnet detection based on machine learning have witnessed significant leaps in recent years, with the availability of large and reliable datasets that are extracted from real-life scenarios. Consequently, adversarial attacks on machine learning-based cybersecurity systems are posing a significant threat to the practicality of these solutions. In this paper, we introduce a novel attack that utilizes machine learning model's explainability in evading detection by botnet detection systems. The proposed attack utilizes information obtained from model's explainability to build adversarial samples that can evade detection in a blackbox setting. The proposed attack was tested on a trained IoT botnet detection systems and was capable of bypassing the botnet detection with 0% detection by altering one feature only to generate the adversarial samples.

Published
2023

2. Controlled Quantum Teleportation in the Presence of an Adversary

Author

Gangopadhyay, Sayan, Wang, Tiejun, Mashatan, Atefeh, and Ghose, Shohini

Subjects
Quantum Physics
Abstract

We present a device independent analysis of controlled quantum teleportation where the receiver is not trusted. We show that the notion of genuine tripartite nonlocality allows us to certify control power in such a scenario. By considering a specific adversarial attack strategy on a device characterized by depolarizing noise, we find that control power is a monotonically increasing function of genuine tripartite nonlocality. These results are relevant for building practical quantum communication networks and also shed light on the role of nonlocality in multipartite quantum information processing.

Published
2022
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3. Forensic Identification of Android Trojans Using Stacked Ensemble of Deep Neural Networks

Author

Alani, Mohammed M., Mashatan, Atefeh, Miri, Ali, Goos, Gerhard, Founding Editor, Hartmanis, Juris, Founding Editor, Bertino, Elisa, Editorial Board Member, Gao, Wen, Editorial Board Member, Steffen, Bernhard, Editorial Board Member, Yung, Moti, Editorial Board Member, Zhou, Jianying, editor, Batina, Lejla, editor, Li, Zengpeng, editor, Lin, Jingqiang, editor, Losiouk, Eleonora, editor, Majumdar, Suryadipta, editor, Mashima, Daisuke, editor, Meng, Weizhi, editor, Picek, Stjepan, editor, Rahman, Mohammad Ashiqur, editor, Shao, Jun, editor, Shimaoka, Masaki, editor, Soremekun, Ezekiel, editor, Su, Chunhua, editor, Teh, Je Sen, editor, Udovenko, Aleksei, editor, Wang, Cong, editor, Zhang, Leo, editor, and Zhauniarovich, Yury, editor

Published
2023
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7. Secure multiparty quantum key agreement against collusive attacks

Author

Abulkasim, Hussein, Mashatan, Atefeh, and Ghose, Shohini

Subjects
Quantum Physics, Computer Science - Cryptography and Security
Abstract

Quantum key agreement enables remote participants to fairly establish a secure shared key based on their private inputs. In the circular-type multiparty quantum key agreement mode, two or more malicious participants can collude together to steal private inputs of honest participants or to generate the final key alone. In this work, we focus on a powerful collusive attack strategy in which two or more malicious participants in particular positions, can learn sensitive information or generate the final key alone without revealing their malicious behaviour. Many of the current circular-type multiparty quantum key agreement protocols are not secure against this collusive attack strategy. As an example, we analyze the security of a recently proposed multiparty key agreement protocol to show the vulnerability of existing circular-type multiparty quantum key agreement protocols against this collusive attack. Moreover, we design a general secure multiparty key agreement model that would remove this vulnerability from such circular-type key agreement protocols and describe the necessary steps to implement this model. The proposed model is general and does not depend on the specific physical implementation of the quantum key agreement., Comment: The paper contains 8 pages and one figure

Published
2020
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8. On Broadcasting Time in the Model of Travelling Agents

Author

Huq, Reaz, Kaminski, Bogumil, Mashatan, Atefeh, Pralat, Pawel, and Szufel, Przemyslaw

Subjects
Computer Science - Social and Information Networks, Mathematics - Combinatorics, Mathematics - Probability
Abstract

Consider the following broadcasting process run on a connected graph $G=(V,E)$. Suppose that $k \ge 2$ agents start on vertices selected from $V$ uniformly and independently at random. One of the agents has a message that she wants to communicate to the other agents. All agents perform independent random walks on $G$, with the message being passed when an agent that knows the message meets an agent that does not know the message. The broadcasting time $\xi(G,k)$ is the time it takes to spread the message to all agents. Our ultimate goal is to gain a better understanding of the broadcasting process run on real-world networks of roads of large cities that might shed some light on the behaviour of future autonomous and connected vehicles. Due to the complexity of road networks, such phenomena have to be studied using simulation in practical applications. In this paper, we study the process on the simplest scenario, i.e., the family of complete graphs, as in this case the problem is analytically tractable. We provide tight bounds for $\xi(K_n,k)$ that hold asymptotically almost surely for the whole range of the parameter $k$. These theoretical results reveal interesting relationships and, at the same time, are also helpful to understand and explain the behaviour we observe in more realistic networks.

Published
2020

9. A Review of Quantum and Hybrid Quantum / Classical Blockchain Protocols

Author

Edwards, Marcus, Mashatan, Atefeh, and Ghose, Shohini

Subjects
Computer Science - Cryptography and Security, Quantum Physics
Abstract

Blockchain technology is facing critical issues of scalability, efficiency and sustainability. These problems are necessary to solve if blockchain is to become a technology that can be used responsibly. Useful quantum computers could potentially be developed by the time that blockchain will be widely implemented for mission-critical work at financial and other institutions. Quantum computing will not only cause challenges for blockchain, but can also be harnessed to better implement parts of blockchain technologies including cryptocurrencies. We review the work that has been done in the area of quantum blockchain and hybrid quantum-classical blockchain technology and discuss open questions that remain., Comment: 27 pages, 1 figure

Published
2019
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16. Balancing Security: A Moving Target

Author

Voskobojnikov, Artemij, Skwarek, Volker, Mashatan, Atefeh, Matsuo, Shin’Ichiro, Rowell, Chris, Weingärtner, Tim, Lemieux, Victoria L., editor, and Feng, Chen, editor

Published
2021
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30. What is driving consumer resistance to crypto‐payment? A multianalytical investigation.

Author

Sangari, Mohamad Sadegh and Mashatan, Atefeh

Subjects
CONSUMER behavior, CRYPTOCURRENCIES, PAYMENT, RESISTANCE (Philosophy), NOVELTY (Perception), JUDGMENT (Psychology)
Abstract

Despite the extensive interest in cryptocurrencies over the past years, their application as a means of payment in e‐commerce and retail purchases continues to be much slower than anticipated. This paper investigates the underlying mechanisms and elements that drive consumer resistance in this space. Drawing upon the stimulus‐organism‐response paradigm and the innovation resistance theory, the paper explores how the characteristics of the current cryptocurrency landscape contribute to different factors associated with crypto‐payment rejection. Our findings from empirical and experimental studies reveal how ecosystem volatility and the lack of structural assurances for cryptocurrencies foster negative consumer perceptions, leading to resistance against crypto‐payment use. The paper develops new insights into the main predictors of consumer resistance to crypto‐payment, which is a precursor to the mainstream use of cryptocurrencies. Moreover, it sheds light on the interactions among context‐specific, psychological, and functional determinants of behavioral consumer response. [ABSTRACT FROM AUTHOR]

Published
2024
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34. From Zero to 100: Demystifying zero trust and its implications on enterprise people, process, and technology.

Author

BUSH, MATTHEW and MASHATAN, ATEFEH

Subjects
*INTERNET security, *COMPUTER security, *COMPUTER network security, *INFORMATION technology security, *FIREWALLS (Computer security)
Abstract

The article focuses on the history and development of the strategic approach to cybersecurity known as "zero trust." The authors discuss the use of firewalls and how they are no longer sufficient, examine data breaches at credit reporting company Equifax and financial company Capital One, and explore how zero trust can impact people, process, and technology (PPT).

Published
2023
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35. The Arrival of Zero Trust: What Does It Mean?

Author

Loftus, Michael, Vezina, Andrew, Doten, Rick, and Mashatan, Atefeh

Subjects
INTERNET security, COMPUTER network security, INFORMATION technology security, INFORMATION technology management
Abstract

A conversation about the strategic approach to cybersecurity known as "zero trust" is presented between Michael Loftus, an information technology (IT) consultant, Rick Doten, the vice president (VP) of information security at Centene Corporation and chief internet security officer (CISO) of Carolina Complete Health, Atefeh Mashatan, founder and director of the Cybersecurity Research Lab at Toronto Metropolitan University (TMU), and Andrew Vezina, the CISO at Equitable (EQ) Bank.

Published
2023
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36. Introducing technological disruption: how breaking media attention on corporate events impacts online sentiment

Author

Vanderkooi, Dane, Mashatan, Atefeh, and Turetken, Ozgur

Abstract

ABSTRACTOne modern strategy to anticipate consumer reaction to new products and services involves looking towards social media sites to explore consumer opinions. A rich body of literature on social media marketing suggests that an effective way to leverage social media platforms is the empirical analysis of electronic word-of-mouth (eWOM), particularly through sentiment analysis (SA). We propose a novel method for innovators to leverage social media by exploring how breaking media attention on notable corporate events impacts the general public sentiment surrounding a pre-introduced, potentially disruptive innovation(PPDI). Twitter conversations surrounding Facebook’s pre-introducedpayment system called Libra, a permissioned blockchain-based cryptocurrency, were analysed as a case study. The analysis suggests that breaking media attention leads to a significant change in sentiment polarity. An event with a preannouncement leads to an emotional momentum effect whereby sentiment polarity accumulates across an anticipation period. Implications for how managers may leverage these insights are discussed.

Published
2024
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40. The Complex Path to Quantum Resistance: Is your organization prepared?

Author

MASHATAN, ATEFEH and HEINTZMAN, DOUGLAS

Subjects
*QUANTUM computing, *INFORMATION technology security, *PRIVACY, *COMPUTER science, *ALGORITHMS
Abstract

THERE IS A new technology on the horizon that will forever change the information security and privacy industry landscape. Quantum computing, together with quantum communication, will have many beneficial applications but will also be capable of breaking many of today's most popular cryptographic techniques that help ensure data protection--in particular, confidentiality and integrity of sensitive information. These techniques are ubiquitously embedded in today's digital fabric and implemented by many industries such as finance, health care, utilities, and the broader information communication technology (ICT) community. It is therefore imperative for ICT executives to prepare for the transition from quantum-vulnerable to quantum-resistant technologies. [ABSTRACT FROM AUTHOR]

Published
2021
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41. Quantum-Safe Trust for Vehicles: The Race Is Already On.

Author

Gardiner, Michael, Truskovsky, Alexander, Neville-Neil, George, and Mashatan, Atefeh

Subjects
QUANTUM computing, AUTOMOBILE industry, AUTOMATIC systems in automobiles, ARTIFICIAL intelligence, INTERNET security
Abstract

THE THEORY OF quantum computing has been with us for nearly three decades, courtesy of a quantum mechanical model of the Turing machine proposed by physicist Paul Benioff in the early 1980s. For most of that time, the notion has seemed more a far-off vision than an impending reality. That changed abruptly with a 2019 claim by Google AI, in conjunction with NASA, that it had managed to perform a quantum computation infeasible on a conventional computer. [ABSTRACT FROM AUTHOR]

Published
2021
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42. Multiagent Routing Simulation with Partial Smart Vehicles Penetration

Author

Kaminski, Bogumil, Krainski, Lukasz, Mashatan, Atefeh, Pralat, Pawel, and Szufel, Przemyslaw

Subjects
Market trend/market analysis, Social networks -- Forecasts and trends, Local transit -- Forecasts and trends
Abstract

The invention and implementation of smart connected cars will change the way how the transportation networks in cities around the world operate. This technological shift will not happen instantaneously--for many years, both human-driven and smart connected vehicles will coexist. In this paper, using a multiagent simulation framework, we model a complex urban transportation system that involves heterogeneous participants. Vehicles are assigned into two groups: the first one consists of smart cars and the second one involves regular ones. Vehicles in the former group are capable of rerouting in response to changes in the observed traffic while regular ones rely on historical information only. The goal of the paper is to analyze the effect of changing smart cars penetration on system characteristics, in particular, the total travelling time. The smart car routing algorithm proposed in this paper reduced travelling time up to 30%. Analysis has shown that the behaviour of the system and optimal configuration of underlying algorithms change dynamically with smart vehicles penetration level., 1. Introduction Due to an increasing number of traffic participants, especially in urban areas, the current transportation infrastructure becomes insufficient. Big cities suffer great economic losses and resident dissatisfaction from [...]

Published
2020
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44. Resistance against Adaptive Plaintext-Ciphertext Iterated Distinguishers

Author

Bay, Aslı, Mashatan, Atefeh, Vaudenay, Serge, Hutchison, David, editor, Kanade, Takeo, editor, Kittler, Josef, editor, Kleinberg, Jon M., editor, Mattern, Friedemann, editor, Mitchell, John C., editor, Naor, Moni, editor, Nierstrasz, Oscar, editor, Pandu Rangan, C., editor, Steffen, Bernhard, editor, Sudan, Madhu, editor, Terzopoulos, Demetri, editor, Tygar, Doug, editor, Vardi, Moshe Y., editor, Weikum, Gerhard, editor, Galbraith, Steven, editor, and Nandi, Mridul, editor

Published
2012
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45. Resistance against Iterated Attacks by Decorrelation Revisited

Author

Bay, Aslı, Mashatan, Atefeh, Vaudenay, Serge, Hutchison, David, Series editor, Kanade, Takeo, Series editor, Kittler, Josef, Series editor, Kleinberg, Jon M., Series editor, Mattern, Friedemann, Series editor, Mitchell, John C., Series editor, Naor, Moni, Series editor, Nierstrasz, Oscar, Series editor, Pandu Rangan, C., Series editor, Steffen, Bernhard, Series editor, Sudan, Madhu, Series editor, Terzopoulos, Demetri, Series editor, Tygar, Doug, Series editor, Vardi, Moshe Y., Series editor, Weikum, Gerhard, Series editor, Safavi-Naini, Reihaneh, editor, and Canetti, Ran, editor

Published
2012
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46. Efficient Fail-Stop Signatures from the Factoring Assumption

Author

Mashatan, Atefeh, Ouafi, Khaled, Hutchison, David, Series editor, Kanade, Takeo, Series editor, Kittler, Josef, Series editor, Kleinberg, Jon M., Series editor, Mattern, Friedemann, Series editor, Mitchell, John C., Series editor, Naor, Moni, Series editor, Nierstrasz, Oscar, Series editor, Pandu Rangan, C., Series editor, Steffen, Bernhard, Series editor, Sudan, Madhu, Series editor, Terzopoulos, Demetri, Series editor, Tygar, Doug, Series editor, Vardi, Moshe Y., Series editor, Weikum, Gerhard, Series editor, Lai, Xuejia, editor, Zhou, Jianying, editor, and Li, Hui, editor

Published
2011
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48. A Message Recognition Protocol Based on Standard Assumptions

Author

Mashatan, Atefeh, Vaudenay, Serge, Hutchison, David, editor, Kanade, Takeo, editor, Kittler, Josef, editor, Kleinberg, Jon M., editor, Mattern, Friedemann, editor, Mitchell, John C., editor, Naor, Moni, editor, Nierstrasz, Oscar, editor, Pandu Rangan, C., editor, Steffen, Bernhard, editor, Sudan, Madhu, editor, Terzopoulos, Demetri, editor, Tygar, Doug, editor, Vardi, Moshe Y., editor, Weikum, Gerhard, editor, Zhou, Jianying, editor, and Yung, Moti, editor

Published
2010
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49. A New Message Recognition Protocol with Self-recoverability for Ad Hoc Pervasive Networks

Author

Goldberg, Ian, Mashatan, Atefeh, Stinson, Douglas R., Hutchison, David, Series editor, Kanade, Takeo, Series editor, Kittler, Josef, Series editor, Kleinberg, Jon M., Series editor, Mattern, Friedemann, Series editor, Mitchell, John C., Series editor, Naor, Moni, Series editor, Nierstrasz, Oscar, Series editor, Pandu Rangan, C., Series editor, Steffen, Bernhard, Series editor, Sudan, Madhu, Series editor, Terzopoulos, Demetri, Series editor, Tygar, Doug, Series editor, Vardi, Moshe Y., Series editor, Weikum, Gerhard, Series editor, Abdalla, Michel, editor, Pointcheval, David, editor, Fouque, Pierre-Alain, editor, and Vergnaud, Damien, editor

Published
2009
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50. A New Message Recognition Protocol for Ad Hoc Pervasive Networks

Author

Mashatan, Atefeh, Stinson, Douglas R., Hutchison, David, Series editor, Kanade, Takeo, Series editor, Kittler, Josef, Series editor, Kleinberg, Jon M., Series editor, Mattern, Friedemann, Series editor, Mitchell, John C., Series editor, Naor, Moni, Series editor, Nierstrasz, Oscar, Series editor, Pandu Rangan, C., Series editor, Steffen, Bernhard, Series editor, Sudan, Madhu, Series editor, Terzopoulos, Demetri, Series editor, Tygar, Doug, Series editor, Vardi, Moshe Y., Series editor, Weikum, Gerhard, Series editor, Franklin, Matthew K., editor, Hui, Lucas Chi Kwong, editor, and Wong, Duncan S., editor

Published
2008
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