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Practical Mobile Forensics

You're reading from  Practical Mobile Forensics

Product type Book
Published in Jul 2014
Publisher
ISBN-13 9781783288311
Pages 328 pages
Edition 1st Edition
Languages
Concepts

Table of Contents (20) Chapters

Practical Mobile Forensics
Credits
About the Authors
About the Reviewers
www.PacktPub.com
Preface
1. Introduction to Mobile Forensics 2. Understanding the Internals of iOS Devices 3. Data Acquisition from iOS Devices 4. Data Acquisition from iOS Backups 5. iOS Data Analysis and Recovery 6. iOS Forensic Tools 7. Understanding Android 8. Android Forensic Setup and Pre Data Extraction Techniques 9. Android Data Extraction Techniques 10. Android Data Recovery Techniques 11. Android App Analysis and Overview of Forensic Tools 12. Windows Phone Forensics 13. BlackBerry Forensics Index

The HFS Plus file system


In 1996, Apple developed a new file system, Hierarchical File System (HFS), to accommodate the storage of large datasets. In an HFS file system the storage medium is represented as volumes. HFS volumes are divided into logical blocks of 512 bytes. The logical blocks are numbered from first to last on a given volume and will remain static with the same size as physical blocks, that is, 512 bytes. These logical blocks are grouped together into allocation blocks, which are used by the HFS file system to track data in a more efficient way. HFS uses a 16-bit value to address allocation blocks, which limits the number of allocation blocks to 65,535. To overcome the inefficient allocations of disk space and some of the limitations of HFS, Apple introduced the HFS Plus file system (http://dubeiko.com/development/FileSystems/HFSPLUS/tn1150.html).

The HFS Plus file system was designed to support larger file sizes. HFS volumes are divided into sectors that are usually 512 bytes...

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