near field communication in m-commerce

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NEAR FIELD COMMUNICATIONIN m-COMMERCE

INTRODUCTION

NFC

NFC-ENABLED DECENTRALIZED CHECKOUT SYSTEM

SALES MODEL DESCRIPTION

NFC-ENABLED EAS TAG DESIGN

PAYMENT PROTOCOL DESCRIPTION

CONCLUSION

FUTURE SCOPE OF RESEARCH

OVERVIEW

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INTRODUCTION

Need for upgrades in e-Commerce

M-Commerce -> Next Gen e-Commerce

Applications of m-commerce in day to day needs

Technologies incorporated to enhance it

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What is NFC?

NFC is a short range high frequency wireless communication technology.

A radio communications is established between devices that either touch

or are momentarily held together.

NFC is mainly aimed for mobile phones or handheld devices.

NFC is an extension of Radio Frequency Identification (RFID) technology.

NFC offers safe yet intuitive communication between electronic devices.4

Operation of NFCPassive Communication

modeActive Communication mode

RD/WR

RD/WR

RD/WR TAG

Initiator device provides a carrier field

and the target device answers by

modulating existing field.

Here, the target device may draw its

power from the initiator provided EM

field.

Both initiator and target devices

communicate by alternately

generating their own fields.

Here, both devices typically need

to have a power supply.

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How NFC works?

NFC uses an initiator and a target.

Initiator actively generates an RF field that can power a target.

While active or peer-to-peer tags have their own power source and

respond to the reader using their own electromagnetic fields.

INITIATOR

TARGET 6

APPLICATIONS OF NFC Commerce

Bootstrapping other connections

Social networking

Identity and access tokens

Smartphone automation and NFC tags

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NFC-enabled Decentralized Checkout System

Allows users to purchase products on physical stores in a fully decentralized unassisted fashion

Uses a new type of electronic article surveillance (EAS) tag embedded with near field communication (NFC) capabilities

Goal is to provide a low-cost, alternative sales model

Designed to eliminate any user-terminal interaction

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Decentralized Checkout System

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This section describe our alternative sales model

Enables buyers to perform decentralized purchases by using their own mobile devices

This involves some initial set up steps like

• connecting to Shop’s WiFi network

• Downloading Shop’s purchase application (app)

• Creating a user account and setting up her preferred payment methods 10

SALES MODEL DESCRIPTION It Checkout System includes 4 steps :

I. Connecting Tag to the Smart Phone

II. Acquiring the Product information

III. Payment

IV. Deactivating the Tag11

NFC Enabled Model For Decentralized Purchases

Product

Barcode

Tag

NFC Enabled Device

t id

p id

P id

t idP info

Paymentt key

t key

ack

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tid tkey

ttmr tctr

Logic

Power Supply

tstsEAS Device

DiversityCircuit

Antenna

NFC Device

NFC + EAS TAG


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NFC-ENABLED EAS TAG DESIGN The tag comprises an antenna,which is common both to its NFC and EAS

functions

Diversity circuit enables the tag to work with near field signals , as well as the far field frequency employed by current anti-theft portals

NFC Tag does the energy harvesting using the power supply module.

Logic part comprises a simple state machine implementing a sub-set of the SNEP protocol

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NFC-ENABLED EAS TAG DESIGN SNEP - Simple NDEF Exchange Protocol

Allows two NFC devices to exchange NDEF Messages

NDEF - NFC Data Exchange Format , It consists of NDEF

Messages and NDEF Records

SNEP is a stateless request/response protocol(PUT/GET)

The receiver uses acknowledge to avoid exhaustion of the

limited NFC bandwidth (CONTINUE/REJECT)15


Identical current consumption and processing times

Lockout timer ttmr and a Counter tctr ,which renders malicious successive attempts

tkey is not computable by the client from any available information

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Describes how system is designed to interact with third-party payment service providers(PSP)

The payment protocol includes Client C and Store S, and enabled by an external Payment service provider P

Uses Platform-as-a-Service (PaaS) framework for payment

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Generic PaaS based protocol For Digital Payment

Receipt , t key

Trans_Conf, OK

Trans_Conf

Purch_Req, C ID, S ID

Purch_Req, C ID

Trans_Conf

Trans_Conf, OK

Trans_Success, OK

BUY ITBUY IT

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CLIENT

STORE

PSP

PAYMENT PROTOCOL DESCRIPTIONSteps Involved in Payment

Purch_Req and Cid is retrieved from C

Connection established between S and P to forward info from C along with Sid

P will reply to S with a request Trans_Conf, which will be forwarded to C

C verify its validity and reply with a Trans_Conf,OK authorization19

PAYMENT PROTOCOL DESCRIPTIONSteps Involved in Payment

P will transfer the funds from C’s to S’s account and reply with Trans_Success,OK

S will verify the outcome of the transaction and issue C’s electronic receipt Receipt and tkey

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CONCLUSION Eliminating buyer’s need to enter a line in order to complete their purchase

The vulnerability of the user privacy has been eliminated

Proposed tag’s design reduce both implementation costs and risk of fraud

Relies on already-deployed multiple purpose devices on the client side

Traditional EAS models is compatible with the proposed solution, thus essentially reducing migration costs to software implementation and personal training.

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Future Scope of Research NFC on the smartphone becomes an all in one payment device

NFC chips and tags are so small and lightweight that they could eventually be integrated into posters,notice boards,ads etc

NFC embedded SIM cards to make more compatible

NFC has implications for the healthcare like diagnostic tags,tag embedded into patient’s chart

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REFERENCE NFC-enabled decentralized checkout system,Orlando Volpato Filho,Mobile

Computing Department,SAMSUNG Research Institute Brazil,Campinas/SP, Brazil Fabio Piva,Mobile Computing Department,SAMSUNG Research Institute Brazil,Campinas/SP, Brazil

Simple NDEF Exchange Protocol. NFC Forum, technical specification (aug, 31). 2011

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THANK YOU

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near field communication in m-commerce

Technology