Touch ID in iphone 5

Prepared by: Virendra Singh

Thakur (131060753022)

Outlines

• Introduction• History• Hardware• Security and privacy

Introduction

• Touch ID is a fingerprint recognition feature, designed and released by Apple Inc., and currently only available on the seventh generation of iPhone, the iPhone 5S.

• Apple says Touch ID is heavily integrated into iOS 7 on supported devices, allowing users to unlock their phone, as well as make purchases in the various Apple digital media stores (iTunes Store, the App Store, or iBookstore.

History

• Only a few other smartphone makers have built fingerprint scanning into their phones, as with the Motorola Mobility  Atrix 4G in 2011,  although none of them were implemented into the operating system like Touch ID.

• The iPhone 5S is the first phone on a major US carrier since then to feature the technology.

History (Contd..)

• In 2012 Apple acquired AuthenTec, a company focused on fingerprint reading and identification management software, for $356 million.  Since then, people have expected a fingerprint reading feature.

Hardware

• Touch ID is built into the home button, which is now built of laser-cut sapphire crystal so as not to scratch (which would prevent Touch ID from working).It features a stainless steel detection ring to detect the user's finger without pressing it.

Hardware (Contd..)

• The sensor will use capacitive touch to detect the user's fingerprint.  The sensor has a thickness of 170 µm, with 500 pixels per inch resolution. The user's finger can be oriented in any direction and it will still be read.

Hardware Design

Security and privacy

• Fingerprint data is stored on the secure enclave of the Apple A7 processor that is inside the device itself, and is not stored on Apple servers, nor on iCloud,  and will not be available to third parties.

• If the user's phone has been rebooted, or has not been unlocked for 48 hours, only the user's passcode, not a fingerprint, can be used to unlock the phone.

Using Touch ID instead of your passcode

• You can use Touch ID to unlock your phone without having to enter your passcode every time. There are two ways you can unlock with Touch ID:

• Press the Home button once to wake iPhone 5s and keep your finger lightly on the Home button.

• Press the Sleep/Wake button once to wake iPhone 5s, and then touch your finger lightly on the Home button.

Using Touch ID instead of your passcode

• If Touch ID doesn't recognize your finger, you'll be asked to try again. After three attempts, you'll be given the option of entering your passcode. After two more tries, you will need to enter your passcode.

References:

• Geltz, B.R. ; Berlier, J.A. ; McCollum, J.M. 

• IEEE SoutheastCon 2010 (SoutheastCon), Proceedings of the 

• Digital Object Identifier: 10.1109/SECON.2010.5453933 

• Publication Year: 2010 

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