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Area of Science:

  • Computer Science
  • Digital Forensics
  • Data Archiving

Background:

  • Many specialized or obsolete computer storage systems are inaccessible to modern general-purpose computers.
  • This inaccessibility hinders the preservation and study of potentially significant cultural, historical, or technical artifacts.
  • Developing compatible interfaces for these legacy systems can be resource-prohibitive.

Purpose of the Study:

  • To develop a method for navigating arbitrary storage systems with a minimum POSIX file system feature set.
  • To enable access to data residing on non-navigable or legacy storage media.
  • To facilitate the preservation and analysis of digital artifacts from obsolete systems.

Main Methods:

  • Developed the DFXML File System (DFXMLFS) to provide a contemporary file system interface.
  • Implemented a two-step workflow: 1. Parsing storage file system structures. 2. Navigating the storage as a read-only file system.
  • Extracted essential file system metadata and serialized it into Digital Forensics XML (DFXML).

Main Results:

  • DFXMLFS enables navigation of diverse storage systems meeting basic POSIX standards.
  • The two-step process effectively separates metadata extraction from file system interaction.
  • Serialized DFXML metadata allows for read-only access and analysis of legacy storage contents.

Conclusions:

  • DFXMLFS offers a practical solution for accessing and preserving data from inaccessible computer storage.
  • The approach facilitates the recovery of valuable digital artifacts from obsolete or specialized systems.
  • This method supports digital forensics and archival efforts by enabling broader data accessibility.