Reverse Engineering of the Android File System (YAFFS2)

Please always quote using this URN: urn:nbn:de:bvb:29-opus-28330
  • YAFFS2 is a file system which is used in many modern smartphones. Allthough YAFFS2 is an open standard and there exists an open source implementation, the behavior of YAFFS2 is not very well understood. Additionally, several aspects like wear-leveling and garbage-collection are not well-specified in the standard so that their actual behavior has to be reverse engineered from the implementation. Here, we give an introduction to and describe the basic functionality of YAFFS2. We place a particular focus on the detailed analysis of both wear-leveling and garbage-collection mechanisms, since these are important within a forensic analysis of the file system.

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Metadaten
Author:Michael Spreitzenbarth, Sven Schmitt, Christian Zimmermann
Persistent identifiers - URN:urn:nbn:de:bvb:29-opus-28330
Series (Volume number):Technical reports / Department Informatik (CS-2011-06)
Document Type:Report
Language:German
Year of publication:2011
Publishing Institution:Friedrich-Alexander-Universität Erlangen-Nürnberg (FAU)
Release Date:2011/09/06
Tag:YAFFS2
SWD-Keyword:Dateisystem; Android <Systemplattform>
Institutes:Technische Fakultät / Technische Fakultät -ohne weitere Spezifikation-
Dewey Decimal Classification:0 Informatik, Informationswissenschaft, allgemeine Werke / 00 Informatik, Wissen, Systeme / 004 Datenverarbeitung; Informatik
open_access (DINI-Set):open_access
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