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.
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Showing 1 to 20 of 162 for “"Denial of service"”.
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Distributed Denial of Service Attack Detection
<p>Distributed Denial of Service (DDoS) attacks on web applications has been a persistent threat. Successful attacks can lead to inaccessible service to legitimate users in time and loss of business reputation. Most research effort on DDoS focused on network layer attacks. Existing approaches on …
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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 …
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Centralized prevention of denial of service attacks
… e-commerce, and many other essential services. As such, the Internet has become an integral part of the workings of society at large. This has lead to an increased vulnerability to remotely controlled disruption of vital commercial and government operations---with obvious implications. …
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On mitigating distributed denial of service attacks
Denial of service (DoS) attacks and distributed denial of service (DDoS) attacks are probably the most ferocious threats in the Internet, resulting in tremendous economic and social implications/impacts on our daily lives that are increasingly depending on the wellbeing of the Internet. How to …
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Hop integrity: a defense against denial-of-service attacks
… following three conditions hold for every pair of adjacent routers p and q in the network. First, p does not forward any message to q if q has not been up and reachable. Second, when q receives a message m supposedly from p, then q can check that m was not modified after it was sent. Third, when …
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Statistical anomaly denial of service and reconnaissance intrusion detection
… presents the architecture, methods and results of the Hierarchical Intrusion Detection Engine (HIDE) and the Reconnaissance Intrusion Detection System (RIDS); the former is denial-of-service (DoS) attack detector while the latter is a scan and probe (P&S) reconnaissance detector; both are …
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PACKET FILTER APPROACH TO DETECT DENIAL OF SERVICE ATTACKS
<p>Denial of service attacks (DoS) are a common threat to many online services. These attacks aim to overcome the availability of an online service with massive traffic from multiple sources. By spoofing legitimate users, an attacker floods a target system with a high quantity of packets or …
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Distributing network identity to mitigate denial-of-service attacks
The CONTRA. Camouflage of Network Traffic to Resist Attacks, project was carried out by Draper Laboratory to provide a defense mechanism against distributed denial of service (DDoS) attacks to both prevent DDoS attacks and mitigate their effects. This Masters project looks at the CONTRA system and …
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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 …
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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 …
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Theory and Patterns for Avoiding Regex Denial of Service
… vulnerability called ReDoS(Regular Expression Denial of Service), caused by a super-linear worst-case execution time during regex matching. ReDoS has a serious and wide impact: since applications written in most programming languages can be vulnerable to it, ReDoS has caused outages at …
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Effects of denial of service attack in WIFI-broadband networks.
This Dissertation investigates the effect of Denial-of-Service (DoS) attacks in Broadband- Wi-Fi networks involving public sector networks. Over the recent past, Wireless communications have become increasingly popular in our everyday life and the world has become increasingly mobile. Traditional …
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Effects of denial of service attack in WIFI-broadband networks.
This Dissertation investigates the effect of Denial-of-Service (DoS) attacks in Broadband- Wi-Fi networks involving public sector networks. Over the recent past, Wireless communications have become increasingly popular in our everyday life and the world has become increasingly mobile. Traditional …
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Mitigating Network-Based Denial-of-Service Attacks with Client Puzzles
Over the past few years, denial-of-service (DoS) and distributed denial-of-service (DDoS) attacks have become more of a threat than ever. These attacks are aimed at denying or degrading service for a legitimate user by any means necessary. The need to propose and research novel methods to mitigate …
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Using network management systems to detect Distributed Denial of Service Attacks
Distributed Denial of Service (DDoS) Attacks have been increasingly found to be affecting the normal functioning of organizations causing billions of dollars of losses. Organizations are trying their best to minimize their losses from these systems. However, most of the organizations widely use the …
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Denial-of-service attack modelling and detection for HTTP/2 services
… have been heavily dependent on Internet-based services, albeit with experiences of constant and annoying disruptions caused by the adversary class. A malicious attack that can prevent establishment of Internet connections to web servers, initiated from legitimate client machines, is termed as a …
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Detection of denial-of-service attacks based on computer vision techniques
A Denial-of-Service (DoS) attack is an intrusive attempt, which aims to force a designated resource (e.g., network bandwidth, processor time or memory) to be unavailable to its intended users. This attack is launched either by deliberately exploiting system vulnerabilities of a victim (e.g., a …
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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 …
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