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You're reading from iOS Forensics Cookbook

Product typeBook

Published inJan 2016

Publisher

ISBN-139781783988464

Edition1st Edition

Tools

iOS

Concepts

Forensics

Authors (2):

Bhanu Birani

Mayank Birani

View More author details

Extracting and reading data

It is very important to understand the basics of the file system before you learn about the ways of extracting and reading data from the iOS device disk. All Apple operating systems use the same file system, hierarchical file system (HFS).

This file system works with the 512 byte-formatted block scheme. To categorize it further, these blocks are divided into two parts: allocation blocks and logical blocks. Logical blocks are available on the volume numbered from the first to the last block. These blocks remain static on the disk. Allocated blocks work with a different strategy; they can be grouped together to utilize the HFS more efficiently. The file structure includes the Allocation and Attributes Files, along with the Volume Header and Catalog Files, and so on.

Getting ready

To understand the extraction well, we will study a little about some of the headers of the HFS file system in detail.

The HFS+ Volume Header

For the HFS format disk, the boot blocks are sectors...

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iOS Forensics Cookbook

Published in: Jan 2016Publisher: ISBN-13: 9781783988464

Authors (2)

Bhanu Birani

Bhanu Birani has more than 7 years of experience in the software industry. He is passionate about architecting, designing, and developing complicated applications. He specializes in creating web, backend as a service, and mobile products suitable for B2B and B2C context. He has expertise in end to end development to create innovative and engaging applications for mobile devices. After years of programming experience in different programming languages, he started developing applications for iOS devices. He started software development around the same time as his graduation and was really interested in learning about the new technologies emerging in the market. He then joined a game development company. After contributing to the gaming domain, he started working on content-based applications and radio applications. He also contributed to hyperlocal geo-targeting using BLE (iBeacons). Over the years, he has gained experience in all phases of software development as requirement gathering, feasibility analysis, architecture design, coding and debugging, quality improvement, deployment, and maintenance.
Read more about Bhanu Birani

Mayank Birani

Mayank Birani has more than 4 years of experience in the software industry. He was a star from the beginning of his career, and he worked with many start-ups. Soon after graduation, he started working on iOS/Mac technologies and is an R&D engineer for Apple Inc. India. He has an inherent passion for coding and developing applications to make the world a better place. He has contributed actively to many start-ups with revolutionary ideas. In the early stages of his career, he was the sole author of Learning iOS 8 for Enterprise by Packt Publishing.
Read more about Mayank Birani

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