Index Catalog // ScholarsArchive@OSU

On a Topological Criterion for the Construction of Higher Arity Metrics

Creator:: Barkan, Willow
Abstract:: Metric spaces (X, d) are ubiquitous objects in mathematics and computer science that are able to capture pairwise distance relationships d(x, y) between points x, y ∈ X. Because of this, it is natural to ask what useful generalizations there are of metric spaces for capturing “k-wise distance relationships” d(x1,...
Resource Type:: Masters Thesis

Awgsome Fault Injection: In-Depth Analysis of Waveform Generation for Voltage Glitches

Creator:: Lyakhov, Stanislav
Abstract:: Voltage fault injection is a technique to disrupt power supply, such that the data or instruction flow in a microcontroller can be modified. Recently, a new class of voltage glitches was introduced termed arbitrary wave voltage glitches. Despite its demonstrated success in practical studies it comes with additional challenges, such...
Resource Type:: Masters Thesis

Empowering End Users to Mitigate Privacy and Security Risks in Smart-Home Trigger-Action Apps

Creator:: Saeidi, Mahsa
Abstract:: Many home users nowadays use various smart devices to improve the efficiency and convenience of their home environments. Trigger-action platforms such as “If-This-Then-That” (IFTTT) enable end users to connect different smart devices and services using simple apps to control these devices and automate the tasks (e.g., if the camera detects...
Resource Type:: Dissertation

On Avoiding Power-Seeking by Artificial Intelligence

Creator:: Turner, Alexander M.
Abstract:: We do not know how to align a very intelligent AI agent's behavior with human interests. I investigate whether—absent a full solution to this AI alignment problem—we can build smart {\ai} agents which have limited impact on the world, and which do not autonomously seek power. In this thesis, I...
Resource Type:: Dissertation

Exploitation and Mitigation of CPU Vulnerabilities

Creator:: Mestas, Phillip O., III
Abstract:: AMD SEV allows for the creation of fully encrypted virtual machines. This allows cloud computing tenants’ data to be secret to the cloud computing provider. However, it has been shown that the encryption scheme used by AMD can easily be broken. The attacker can create a copy of the virtual...
Resource Type:: Masters Thesis

Ideal Thumbnail-Preserving Encryption for Balancing Image Privacy and Usability

Creator:: Tajik, Kimia
Abstract:: In this dissertation, we propose Ideal Thumbnail-Preserving Encryption (Ideal TPE), as a special case of format-preserving encryption, to balance image privacy and usability concerns in a cloud environment. We first introduce a concrete construction for Ideal TPE, that provably leaks nothing about the plaintext (unencrypted) image beyond its thumbnail. We...
Resource Type:: Dissertation

Two Sides of a Coin: Adversarial-Based Image Privacy and Defending Against Adversarial Perturbations for Robust CNNs

Creator:: Rajabi, Arezoo
Abstract:: Emergence of highly accurate Convolutional Neural Networks (CNNs) with the capability to process large datasets, has led to their popularity in many applications, including safety/security-sensitive (e.g. disease recognition, self-driving cars). Despite the high accuracy of convolutional neural networks, they have been found to be susceptible to adversarial noise added to...
Resource Type:: Dissertation

Fourier Analysis of Temporal Logic

Creator:: Basnet, Niraj
Abstract:: Signal Temporal logic(STL) provides a convenient framework to describe various system properties over time. While there has been extensive research on verification and control synthesis from STL requirements, a lot of them revolve around the time-domain analysis. So, there are still some questions properly unaddressed like what is the frequency...
Resource Type:: Masters Thesis

Anomaly Detection and Probabilistic Diagnosis for Automated Data Quality Control

Creator:: Zemicheal, Tadesse H.
Abstract:: Advances in sensor technology are greatly expanding the range of quantities that can be measured while simultaneously reducing the cost. However, deployed sensors drift out of calibration and fail, so every sensor network requires quality control procedures to promptly detect these failures. To address these problems, we propose a two-level...
Resource Type:: Dissertation

Approximation Schemes in Planar Graphs

Creator:: Zheng, Baigong
Abstract:: There are growing interests in designing polynomial-time approximation schemes (PTAS) for optimization problems in planar graphs. Many NP-hard problems are shown to admit PTAS in planar graphs in the last decade, including Steiner tree, Steiner forest, two- edge-connected subgraphs and so on. We follow this research line and study several...
Resource Type:: Dissertation

Structural Results and Approximation Algorithms in Minor-free Graphs

Creator:: Le, Hung V.
Abstract:: Planarity has been successfully exploited to design faster and more accurate approximation algorithms for many graph optimization problems. The celebrated theorem of Kuratowski completely characterizes planar graphs as those excluding K_5 and K_{3,3} as minors. Kuratowski's theorem allows one to generalize planar graphs to H-minor-free graphs: those that exclude a...
Resource Type:: Dissertation

A Decade of Linux Kernel Vulnerabilities, their Mitigation and Open Problems

Creator:: Raj, Abhilash
Abstract:: The aim of this thesis is to study past 10 years of security vulnerabilities reported against Linux Kernel and all existing mitigation techniques that prevent the exploitation of those vulnerabilities. To systematically study the security vulnerabilities, they were categorized into classes and sub-classes based on their type. This thesis first...
Resource Type:: Masters Thesis

A Deep Action Segmentation and Its Explanation with a Dictionary of Meaningful Attention Maps

Creator:: Trigkakis, Dimitrios
Abstract:: This thesis addresses the problem of temporal action segmentation in videos, where the goal is to label every video frame with the appropriate action class present. We focus on the domain of NFL football videos, where action classes represent common football play types. For action segmentation, we use a temporal...
Resource Type:: Masters Thesis

3D Voronoi Subdivision for Simulating Destructible and Granular Materials

Creator:: Clothier, Matthew M.
Abstract:: In many traditional computer graphics applications, rendered scenes typically utilize 3D meshes to represent objects within an environment. As the demand to further improve the realism of graphics applications increases, such as for movies and games, it is becoming more important to represent the inner volumes of object meshes. In...
Resource Type:: Dissertation

Relational Networks for Visual Relationship Detection in Images

Creator:: Nguyen, Khoi
Abstract:: This thesis is about visual relationship detection. This is an important task in computer vision. The goal is to detect all visual relationships in a given image between objects. This thesis presents a new approach to this problem. Our approach does not use an object detector as a common pre-processing...
Resource Type:: Masters Thesis

User perceptions on security and usability of mobile “tap-and-pay”

Creator:: Rayala, Swathi Sri Vishnu Priya
Abstract:: Apple launched their ﬁrst “tap-and-pay” mobile payment solution called “ApplePay” in October 2014 in the United States. Quickly catching up with the popularity of Apple Pay, Google launched their own mobile “tap-and-pay” paymentsolution called “Android Pay”. Both the companies claim that their tap-and-paysolutions are more convenient and more secure than...
Resource Type:: Masters Thesis

Image Based Crypto

Creator:: Basa, Gungor
Abstract:: The ability to create reproducible cryptographically secure keys from temporal environments (e.g., images) has the potential to be a contributor to effective cryptographic mechanisms. Due to the noisy nature of these environments, achieving this goal in a user friendly fashion is a very challenging task, especially since there exists a...
Resource Type:: Masters Thesis

Efficient Oblivious Access to Trees

Creator:: Hackebeil, Gabriel A.
Abstract:: The outsourcing of data storage and related infrastructure to third-party services in the cloud is a trend that has gained considerable momentum in the last decade due to the savings it affords companies in both capital and operational costs. Although encryption can alleviate some of the privacy concerns associated with...
Resource Type:: Masters Thesis

Efficient, secure and covert channel capacity bounded protocols for multilevel security cross-domain environments - an experimental system

Creator:: Nandakumar Thampi, Archana
Abstract:: The communication in MLS cross-domain environments faces many challenges. The three most important challenges are efficient key management, privacy preserving and covert channel. We propose an Efficient, Secure and Covert Channel Capacity Bounded Protocol which has three algorithms that addresses these challenges: The Efficient Attribute-based Fine-Grained Authentication (EAFA) algorithm, Anonymous...
Resource Type:: Masters Thesis

ScholarsArchive@OSU

On a Topological Criterion for the Construction of Higher Arity Metrics

Awgsome Fault Injection: In-Depth Analysis of Waveform Generation for Voltage Glitches

Empowering End Users to Mitigate Privacy and Security Risks in Smart-Home Trigger-Action Apps

On Avoiding Power-Seeking by Artificial Intelligence

Exploitation and Mitigation of CPU Vulnerabilities

Ideal Thumbnail-Preserving Encryption for Balancing Image Privacy and Usability

Two Sides of a Coin: Adversarial-Based Image Privacy and Defending Against Adversarial Perturbations for Robust CNNs

Fourier Analysis of Temporal Logic

Anomaly Detection and Probabilistic Diagnosis for Automated Data Quality Control

Approximation Schemes in Planar Graphs

Structural Results and Approximation Algorithms in Minor-free Graphs

A Decade of Linux Kernel Vulnerabilities, their Mitigation and Open Problems

A Deep Action Segmentation and Its Explanation with a Dictionary of Meaningful Attention Maps

3D Voronoi Subdivision for Simulating Destructible and Granular Materials

Relational Networks for Visual Relationship Detection in Images

User perceptions on security and usability of mobile “tap-and-pay”

Image Based Crypto

Efficient Oblivious Access to Trees

Efficient, secure and covert channel capacity bounded protocols for multilevel security cross-domain environments - an experimental system

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