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In large-scale networks, communication links between nodes are easily injected with false data by adversaries. This paper proposes a novel security defense strategy from the perspective of attack detection scheduling to ensure the security…

Systems and Control · Electrical Eng. & Systems 2023-12-19 Yuhan Suo , Senchun Chai , Runqi Chai , Zhong-Hua Pang , Yuanqing Xia , Guo-Ping Liu

Distributed Denial of Service (DDoS) is a common type of Cybercrime. It can strongly damage a company reputation and increase its costs. Attackers improve continuously their strategies. They doubled the amount of unleashed communication…

Networking and Internet Architecture · Computer Science 2017-05-25 Michele Nogueira , Augusto Almeida Santos , José M. F. Moura

The concept of Software Defined Networking (SDN) represents a modern approach to networking that separates the control plane from the data plane through network abstraction, resulting in a flexible, programmable and dynamic architecture…

Machine Learning · Computer Science 2023-03-14 Ahmad Hamarshe , Huthaifa I. Ashqar , Mohammad Hamarsheh

The Tor network enhances clients' privacy by routing traffic through an overlay network of volunteered intermediate relays. Tor employs a distributed protocol among nine hard-coded Directory Authority (DA) servers to securely disseminate…

Cryptography and Security · Computer Science 2025-03-25 Zhongtang Luo , Adithya Bhat , Kartik Nayak , Aniket Kate

Stream-based communication dominates today's Internet, posing unique challenges for anonymous communication networks (ACNs). Traditionally designed for independent messages, ACNs struggle to account for the inherent vulnerabilities of…

Cryptography and Security · Computer Science 2025-04-22 Christoph Döpmann , Maximilian Weisenseel , Florian Tschorsch

In this paper, we analyze existing feature selection methods to identify the key elements of network traffic data that allow intrusion detection. In addition, we propose a new feature selection method that addresses the challenge of…

Cryptography and Security · Computer Science 2021-06-30 Firuz Kamalov , Sherif Moussa , Rita Zgheib , Omar Mashaal

Data poisoning is one of the most relevant security threats against machine learning and data-driven technologies. Since many applications rely on untrusted training data, an attacker can easily craft malicious samples and inject them into…

Cryptography and Security · Computer Science 2021-12-01 Nicolas M. Müller , Simon Roschmann , Konstantin Böttinger

Proof-of-Stake (PoS) consensus protocols often face a trade-off between performance and security. Protocols that pre-elect leaders for subsequent rounds are vulnerable to Denial-of-Service (DoS) attacks, which can disrupt the network and…

Cryptography and Security · Computer Science 2025-10-07 Ivan Homoliak , Martin Perešíni , Marek Tamaškovič , Timotej Ponek , Lukáš Hellebrandt , Kamil Malinka

This paper details data science research in the area of Cyber Threat Intelligence applied to a specific type of Distributed Denial of Service (DDoS) attack. We study a DDoS technique prevalent in the Domain Name System (DNS) for which…

Cryptography and Security · Computer Science 2019-07-23 Renée Burton

Distributed Denial of Service (DDoS) attacks pose an increasingly substantial cybersecurity threat to organizations across the globe. In this paper, we introduce a new deep learning-based technique for detecting DDoS attacks, a paramount…

Cryptography and Security · Computer Science 2024-09-16 Fernando Martinez , Mariyam Mapkar , Ali Alfatemi , Mohamed Rahouti , Yufeng Xin , Kaiqi Xiong , Nasir Ghani

Several hundred Tor exit relays together push more than 1 GiB/s of network traffic. However, it is easy for exit relays to snoop and tamper with anonymised network traffic and as all relays are run by independent volunteers, not all of them…

Cryptography and Security · Computer Science 2014-01-21 Philipp Winter , Stefan Lindskog

Computer network is unpredictable due to information warfare and is prone to various attacks. Such attacks on network compromise the most important attribute, the privacy. Most of such attacks are devised using special communication channel…

Cryptography and Security · Computer Science 2011-01-04 Anjan K , Jibi Abraham , Mamatha Jadhav

A distributed denial-of-service (DDoS) attack can flood a victim site with malicious traffic, causing service disruption or even complete failure. Public-access sites like amazon or ebay are particularly vulnerable to such attacks, because…

Networking and Internet Architecture · Computer Science 2012-10-26 Katerina J. Argyraki , David R. Cheriton

Anonymity systems like Tor are vulnerable to Website Fingerprinting (WF) attacks, where a local passive eavesdropper infers the victim's activity. Current WF attacks based on deep learning classifiers have successfully overcome numerous…

Cryptography and Security · Computer Science 2021-02-09 Shawn Shan , Arjun Nitin Bhagoji , Haitao Zheng , Ben Y. Zhao

We introduce and investigate *targeting adversaries* who selectively attack users of Tor or other secure-communication networks. We argue that attacks by such adversaries are more realistic and more significant threats to those most relying…

Cryptography and Security · Computer Science 2017-07-03 Aaron D. Jaggard , Paul Syverson

DDoS attacks, also known as distributed denial of service (DDoS) attacks, have emerged as one of the most serious and fastest-growing threats on the Internet. Denial-of-service (DDoS) attacks are an example of cyber attacks that target a…

Cryptography and Security · Computer Science 2022-04-28 Anupama Mishra

This paper addresses a resilient exponential distributed convex optimization problem for a heterogeneous linear multi-agent system under Denial-of-Service (DoS) attacks over random digraphs. The random digraphs are caused by unreliable…

Optimization and Control · Mathematics 2021-05-07 Zhi Feng , Guoqiang Hu

We define stealth Man-in-the-Middle adversaries, and analyse their ability to launch denial and degradation of service (DoS) attacks on secure channels. We show realistic attacks, disrupting TCP communication over secure VPNs using IPsec.…

Cryptography and Security · Computer Science 2015-03-13 Amir Herzberg , Haya Shulman

There are not many known ways to break Tor anonymity, and they require an enormous amount of computational power. Controlling both entrance and exit nodes allows an attacker to compromise client IP with enough pattern analysis. If an .onion…

Cryptography and Security · Computer Science 2017-12-13 Stephanie Abraham , Tyler Silva , Robert Decourcy , Jim Cardon

Website fingerprinting attacks, which use statistical analysis on network traffic to compromise user privacy, have been shown to be effective even if the traffic is sent over anonymity-preserving networks such as Tor. The classical attack…

Cryptography and Security · Computer Science 2019-02-22 Anatoly Shusterman , Lachlan Kang , Yarden Haskal , Yosef Meltser , Prateek Mittal , Yossi Oren , Yuval Yarom