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Date of Award
Master of Science (MS)
Department of Computer Science
As our day to day interaction with technology continues to grow, so does the amount of data created through this interaction. The science of digital forensics grew out of the need for specialists to recover, analyze, and interpret this data. When events or actions, either by accident or with criminal intent create, delete or manipulate data, it is the role of a digital forensics analyst to acquire this data and draw conclusions about the discovered facts about who or what is responsible for the event. This thesisidentifies a gap in the research between data analysis and interpretation. Current research and tool development has been focusing on data acquisition techniques and file carving. Data acquisition is the process of recovering a forensically sound copy of the evidence, such as a bit-by-bit copy of a hard drive or an image of the contents of a computer system’s RAM. File carving is the process of searching for and extracting files from the acquired data. Few tools provide a means of quick and easy file validation and data extraction once they have been recovered, and the tools that do are either limited in their ability or very complex and require a lot of overhead and a steep learning curve to use effectively. The tool created through this research fills this gap. The tool utilizes a file description language that can textually describe the layout and on-disk format of a file type’s data. This language is very intuitive and easy to read and understand by humans. By using a description as input, the tool builds a syntax tree which can be used to parse and extract various fields of interest from any file matching the provided description. This allows for the quick analysis and interpretation of any file type, even those with uncommon or proprietary formats, as long as a valid description is provided.
Kelley, Benjamin Nathaniel, "Data carving parser generation" (2013). Masters Theses. 248.