Structural Signatures: Using Source-specific Format Structures to Identify the Provenance of Digital Video Files (original) (raw)

2020

Abstract

Presented at JTS2019 by Bertram Lyons at the Netherlands Institute for Sound and Vision, Hilversum (NL) on Saturday, October 5, 2019. Collaborative notes available at: https://doi.org/10.5281/zenodo.3835666 ABSTRACT: Every complex digital file format requires the presence of self-describing and predictable internal binary structures. This internal structure is responsible for framing the stored content within the file so playback software can acquire the correct configuration details to reconstitute this encoded information. This applies to videos (e.g., mp4, mov, avi), audio files (e.g., wav, mp3), still images (e.g., jpg, tif, png), serialized packages (e.g., zip, tar), database files (e.g., sql), and file systems (e.g., FAT32, HFS), among many other content types. Traditional approaches to digital file forensics focus on the content of the file itself. Signal analysis takes the output of the reconstructed payload of the file and processes this output to identify traces that are t...

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