Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
Results
Showing 1 to 20 of 52 for “"Denial of Service (DoS)"”.
-
Secured information dissemination and misbehavior detection in VANETs
… network can disrupt the decision-making process of surrounding vehicles or any traffic-monitoring system. Since in VANETs the size of the distributed network constituting the vehicles can be small, it is not difficult for an attacker to propagate an attack across multiple vehicles within the …
-
Modeling Insecurity: Enabling Recovery -Oriented Security With Dynamic Policies
To showcase the expressive power of our framework, I apply it to study network Denial of Service (DoS) attacks, and model resilience to such attacks as a survivability property. I show how we can systematically analyze the relative impact of different anti-DoS strategies by changing policies and …
-
Applying mobile agents technology to intrusion detection and response
As the capabilities of intrusion detection systems (IDSs) advance, attackers may disable organizationsa?? IDSs before attempting to penetrate more valuable targets. To counter this threat, we present an IDS architecture that is resistant to flooding denial of service (DoS) attacks. The architecture …
-
Denial of Service Attacks in MANETs
Denial of service (DoS) attacks are one problem threatening the networks in the Internet of Battle Things (IoBT) world. Since devices move often in this world, the type of network most commonly used in the IoBT world is the Mobile Ad hoc Network (MANET), which dynamically re-configures itself to …
-
Reducing Latency and Increasing Resilience to Cyberattacks on Networks
… constant need for Internet access, the multitude of requests from various user devices for content from multiple sources causes routers to suffer high latency if data transmissions are mismanaged. Furthermore, if an attack, such as Denial of Service (DoS) or Distributed Denial of Service (DDoS), …
-
Defense against network attacks using game theory
… attacks have been used to achieve a wide gamut of objectives ranging from overloading a website to accessing classified data. Effective defense against such attacks is a critical research area. In this thesis, we demonstrate how game theory can be used to devise effective defense systems. We …
-
Examining key mobility resources through denial of service attacks on proposed global name resolution services
… architecture design that may open it up to denial of service (DoS) attacks and to expose the tradeoffs in mitigating those DoS opportunities. We take as our candidate network architecture design the Future Internet Architecture project MobilityFirst. MobilityFirst's overarching goal, driven …
-
Understanding and Hardening Blockchain Network Security Against Denial of Service Attacks
<p>This thesis aims to examine the security of a blockchain's communication network. A blockchain relies on a communication network to deliver transactions. Understanding and hardening the security of the communication network against Denial-of-Service (DoS) attacks are thus critical to the …
-
Detecting exploit patterns from network packet streams
… try to detect malicious network activity such as Denial of Service (DoS) attacks and port scans by monitoring network traffic. Research from network traffic measurement has identified various patterns that exploits on today's Internet typically exhibit. However, there has not been any significant …
-
Applying Machine Learning to Advance Cyber Security: Network Based Intrusion Detection Systems
… are susceptible to attacks. Two important types of attacks are the use of malware and exploiting Internet protocol vulnerabilities in devices and network systems. These attacks form a threat on many levels and therefore any approach to dealing with these nefarious attacks will take several …
-
Security threats to the MAC-layer in wireless networks
… important in wireless networks due to the lack of physical access control that normally exists in wired networks in the form of connecting a cable. Most efforts in standards organizations and academic research focus on the requirements of confidentiality and authentication. These approaches to …
-
Data-driven Estimation of Low-Power Long-Range Signal Parameters by an Unauthenticated Agent using Software Radio
… communicate intermittently with each other, often with limited power and over unlicensed spectrum bands that are susceptible to interference, eavesdropping, and Denial-of-Service (DoS) attacks. In this work, we consider a popular low-power, long-range communication protocol known as LoRa. …
-
Privacy and Security in IPv6 Addressing
… from the Media Access Control (MAC) address of a network interface as host portion, or interface identifier (IID). The Dynamic Host Configuration Protocol version 6 (DHCPv6) uses a client-server model to manage network addresses, providing stateful address configuration. While DHCPv6 can be …
-
Denial-of-Service Attacks on Battery-Powered Mobile Computers
A Denial of Service (DoS) attack is an incident in which the user is deprived of the services of a resource he is expected to have. With the increasing reliance on mobile devices like laptops and palmtops, a new type of DoS attack is possible that attacks the batteries of these devices, called …
-
Providing availability in the lower layers of a wireless network: philosophies and case studies
… and integrity, form the basic concepts of information security. Indeed, a device, protocol, or network can enjoy the highest level of confidentiality and integrity, but still be of very little value to its clients if it is not available. In this dissertation, I consider the availability …
-
A comparative analysis of denial of service vulnerabilities in network protocols
… reliance on the Internet continues to grow, Denial of Service [DoS] attacks pose an ever greater threat to society. In recent years the proliferation of poorly secured "Internet of Things" [IoT] devices has enabled attackers to build massive botnets which have delivered on this threat with …
-
Improving the resilience of cyber-physical systems under strategic adversaries
… by substituting the stability and predictability of fossil fuel based generation with the unreliability and uncertainty of wind and solar power. Rising demand for green energy drives grid operators to integrate sensors, smart meters, and distributed control to compensate for this uncertainty and …
-
Efficient large flow detection over arbitrary windows: an exact algorithm outside an ambiguity region
… in many current and future applications like Denial- of-Service (DoS) flow detection, bandwidth guarantee, etc. However, to the best of our knowledge, there is no existing work that can achieve exact large flow detection without per-flow status. Maintaining per-flow status requires a large …
-
Detecting network attacks using high-resolution time series
Research in the detection of cyber-attacks has sky-rocketed in the recent past. However, there remains a striking gap between usage of the proposed algorithms in academic research versus industrial applications. Leading researchers have argued that efforts toward the understanding of proposed …
-
Redistributing the Costs of Volumetric Denial-of-Service Mitigation
Volumetric Denial-of-Service (DoS) attacks pose a severe and exponentially increasing threat to the Internet. Existing mitigations provide valuable stop-gaps but fail to address the root cause, and the overhead they incur is poorly understood. To combat these attacks we present a protocol-agnostic …
Page 1 of 3