near field communication(nfc)

NEAR FIELD COMMUNICATION

BY-NALINI MEHTAFinal Year I.T.

Life becomes simple with just one phone touch………

• No Bluetooth pairing.• Your credit cards: gone. • Bus pass and train tickets:

vanished. • Those loyalty cards for high

street coffee shops: binned.• A future where the wallet,

purse, paper ticket and pocket have all gone digital and live solely on your phone.

• Near Field Communications (NFC), a contactless, Wi-Fi-lite style tech that could already be in your smartphone, and could soon be a regular feature of your commute.

Introduction

Features of NFC

How NFC works?

Operational modes of NFC

NFC Reader

• NFC tags like stickers or wristbands, contain small microchips with little aerials which can store a small amount of information for transfer to another NFC device.

• These tags can store wide ranges of information, from short lines of text, such as a web address or contact details, to links to apps in the Google Play Store.

• NFC tags are considered passive devices, which means that they operate without a power supply of their own and are reliant on an active device to come into range before they are activated. These devices are simply used to transfer information to an active device, such as a smartphone.

• In order to power these NFC tags, electromagnetic induction is used to create a current in the passive device

NFC Tags

APPLICATIONS ARE ENORMOUS……..

1.) Sharing without pairing

NFC can be used in social networking situations, such as sharing contacts, photos, videos or files by just touching your phone and for entering multiplayer mobile games.

2.) Menu card on phone

By just tapping the phone on the tags you can be provided with a list of menu and you can place the order immediately from the phone itself by filling the information asked.

• NFC devices enables contactless payments and ticketing without changing the existing infrastructure.

• Google Wallet allows consumers to store credit card and store loyalty card information in a virtual wallet and then use an NFC-enabled device at terminals that also accept MasterCard Pay Pass transactions.

3.) Card Emulation

4.) Wireless Chargingo As if being able to charge up your smartphone without plugging

it in is a brilliant idea.o Nokia is taking the experience one step further. Nokia Lumia 920

and Lumia 820 are showing you useful information like the Weather & Calendar feature while it is being wirelessly charged.

• Earlier keys or smart cards were used to open the lock of the doors or of cars.

• Now your phone can be the key to your lock.

• So no need to remember that you have taken your keys or not because now you will never forget it!!!

5.) A future key

Comparison with Bluetooth

NFC sets up faster than standard Bluetooth, but is not much faster than Bluetooth low energy. With NFC, instead of performing manual configurations to identify devices, the connection between two NFC devices is automatically established quickly — in less than a tenth of a second. The maximum data transfer rate of NFC (424 Kbit/s) is slower than that of Bluetooth V2.1 (2.1 Mbit/s).

Other side of the coin………

SECURITY ASPECTS

o Eavesdropping

o Data modification

o Interception Attacks

o Data Corruption and Manipulation

o Lost property

But security is possible…

Future Scope

Even more….