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 17 of 17 for “"Hashes"”.
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Optimizing live virtual machine migrations using content-based page hashes
… is transparent to the virtual machine. The page hashes that are collected in this process can be further utilized. This thesis demonstrates how these page hashes can be used to reduce the time required to migrate running virtual machines from one physical machine to another. Normally, this is …
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Some applications of noncommutative groups and semigroups to information security
… that even without optimization, these hashes have comparable performance to hashes in the SHA family.</p>
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Transmissions of Hashed Personally Identifiable Information to Third Parties Across Websites
… this to be false by successfully re-identifying hashes of common personally identifiable information (PII). Despite this, websites continue to share hashed PII while making claims that understate the privacy risks for users. To investigate the prevalence of this practice, we present Hem and Haw, …
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ACeD: scalable data availability oracle
… in blockchains by relying on committing only hashes of off-chain data into the blockchain. This mechanism is acknowledged to be vulnerable to a stalling attack: the blocks corresponding to the committed hashes may be unavailable at any honest node. The straightforward solution of broadcasting …
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Enhancing CryptoGuard's Deployability for Continuous Software Security Scanning
… misuses such as hard-coded keys, weak program hashes, and using insecure protocols. In my Master thesis work, I made several important contributions to improving the deployability, accessibility, and usability of CryptoGuard. I extended CryptoGuard to scan source and compiled code, created live …
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Runtime execution tracing and alignment with PANDA
… reconvergences can be detected. Comparing these hashes across executions allows the engineer to narrow down branches of interest and request more detailed information from the plugin on a second pass, during which the precise context of nested functions and control flow within functions is …
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Millimeter wave communications : from point-to-point links to agile network connections
… the space. Instead of scanning, Agile-link hashes the beam directions using a few carefully chosen hash functions. It then identifies the correct alignment by tracking how the energy changes across different hash functions. Two major limitations are addressed in this research. First is the …
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A Heuristic Featured Based Quantification Framework for Efficient Malware Detection. Measuring the Malicious intent of a file using anomaly probabilistic scoring and evidence combinational theory with fuzzy hashing for malware detection in Portable Executable files
… score while the second approach uses fuzzy hashes and evidence combination theory for more efficient malware detection. The approaches’ resultant quantifiable scores measure the malicious intent of the file. The designed schemes were validated using a dataset of “clean” and “malicious” …
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Discovering Novel Microarchitectural Security Vulnerabilities in Modern Processors
… integrity through the use of cryptographic hashes. I will introduce the PACMAN attack, a novel attack methodology that defeats Pointer Authentication by leveraging the behavior of the CPU’s microarchitecture. I will present multiple proof-of-concept attacks showing PACMAN defeating Pointer …
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Algorithms for verifying the integrity of untrusted storage
… developed by Clarke et al. in [6], multiset hashes are used to verify a sequence of load and store operations. The overhead of this scheme is very low if checks are infrequent, but can be quite high if checks are performed frequently. The hybrid scheme combines the advantages of the two …
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Deception and defense from machine learning to supply chains
… metadata into compiled binaries. Specifically, hashes of each source code file consumed by a compiler are embedded into its emitted binary, and these hashes are included recursively into all downstream dependencies. They are stored in a highly space and time efficient probabilistic data …
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Content-Moderation for End-to-End-Encrypted Platforms
… data that matched against a blocklist of hashes curated by Apple. However, the proposal faced widespread criticism as it completely trusted Apple to create the blocklist without any oversight. Furthermore, due to technical reasons, a third-party could not verify that the blocklist was …
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Asset Tokenization and Authentication in the Industrial Metaverse
… with to manipulate, for example, cryptographic hashes that link the file to the token, perceptual hashes can compute a perceived or functional similarity of two objects instead of the plain file integrity. Without the possibility of verifying and protecting intellectual property, mass adoption …
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Hacking Antarctica
… the sublime through the polar-site produced by hashes of proxies and the diffraction produced when superposing modes of knowing. The interruption of the spectacle to respond to Antarctica is the result.
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Information retrieval and mining in high dimensional databases
… based on the geometric hashing technique, which hashes node-triplets of the graphs into a 3D table and compresses the label-triplets in the table. To demonstrate the utility of our algorithms, we discuss two applications of them in scientific data mining. First, we apply the method to locating …
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Distributed AI-defense for Cyber Threats on Edge Computing Systems
… state-of-the-art cyber security models. Mutating hashes, complex obfuscation mechanisms, self-propagating malware, and intelligent malware components can easily overwhelm current signature-based and behavioral-based cyber security approaches. Moreover, as novel computational, storage, and energy …
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Audio computing in the wild: frameworks for big data and small computers
… spotting tasks. From the fact that some landmark hashes (e.g. local maxima from non-maximum suppression on the magnitudes of a mel-scaled spectrogram) can also robustly represent the time-frequency domain signal efficiently, a matrix decomposition algorithm is also proposed to take those irregular …