Developing NFC Apps

125 March 2014
NFC Forum, Developers Showcase
March 21st, 2014
DEVELOPING NFC APPS
for BLACKBERRY
Larry McDonough, Principal Evangelist
@LMCDUNNA

225 March 2014
CONTENTS
• Development on BlackBerry
• BlackBerry NFC Support
• 5 most common use cases
• NFC Demos
• Q & A

325 March 2014
First, Some Stats…
• A mobile device management leader with global
enterprise customer base exceeding 80,000
• 30,000+ BES 10 commercial & test servers installed
• 250,000+ BBM Channels globally since launch
• 40+ Million newly registered Android/iOS BBM users
in first 60 days
• 665+ carriers and distribution partners offering
BlackBerry products and services in more than 175
countries around the world

425 March 2014
High Level Architecture
BlackBerry Platform & Services
(BlackBerry Enterprise Service 10, Push, Payments, BBM,
Invocation Framework, Share Framework, Maps, …)
Native C++ &
Cascades UI
BlackBerry 10 OS
HTML5 &
WebWorks
Android
Runtime
Support for NFC in the Android Runtime is coming in 10.3

525 March 2014
Strong & Growing Ecosystem
C/C++
Native SDK
Wide choice of
programming
languages
Java Android
Runtime
C++/Qt
Cascades
Broad
range of
app dev
libraries
and personal appsManaging corporate...
HTML5
BlackBerry
WebWorks™

725 March 2014
BlackBerry World
• In over 170 Markets
• Free to register
• Free to submit upgrade
• 70/30 revenue share
• Credit card, PayPal, Carrier Billing
• 5+ Billion apps downloaded

825 March 2014
http://developer.blackberry.com
• Tools, samples, documentation, Forums…
• HTML5 / WebWorks
• C, C++, Native SDK
• Cascades UI Framework
• Android
• Frameworks Partners:
• Appcelerator, Cordova, dojo, jQuery
Mobile, Marmalade, Qt, Sencha
Touch, Unity

925 March 2014
BlackBerry
NFC Support

1025 March 2014
CONTENTS
• What is NFC? (skipped for this audience!)
• NFC Tags
• Peer to Peer
• Card Emulation
• Virtual Target (Host Card) Emulation
• Reading Contactless Cards
• APIs & Built-in Apps Support

1125 March 2014
About NFC Tags
Memory Cards that
store data
Have a contactless
interface
Read by a device
termed “the Reader”
App takes action in
response to the message

1225 March 2014
About NFC Tags
4 standard NFC Forum
tag types
Message format is
standard (NDEF)
Standard message
types include Smart
Poster, Text, URI
Custom types
(“external”) allowed
Various tag capacities

1325 March 2014
About Tag Circuitry

1425 March 2014
Field Detection and Power

1525 March 2014
Demo 1 – NFC Business Card
• No coding or client app necessary
• Uses standard URL message format
• Leverages browser to take user to my
eBusiness Card site
• Backend server code helps me track
who I met, who downloaded my vcard,
etc.
Front Back
w/QR Code
For iOS users
w/NFC Tag
For real smartphone users

1625 March 2014
After scanning tag, developers can:
• Add my vcard to their address book which
includes usual stuff plus:
• LinkedIn URL,
• Twitter handle,
• Slide Share link,
• BlackBerry Dev Blog link,
• My Blogger link, etc.
• Request a device, Register as a vendor,
and visit BlackBerry dev site
Demo 1 – NFC Business Card

1725 March 2014
Demo 2 – NFC Fun Run
Have a nice cup of tea
Stop timer
Run!
Start timer

1825 March 2014
Register with Invocation Framework
<invoke-target id="com.example.NfcRaceTime">
<type>APPLICATION</type>
<filter>
<action>bb.action.OPEN</action>
<mime-type>application/vnd.rim.nfc.ndef</mime-type>
<property var=“uris”
value=“ndef://4/my.rim.com/myrecordtype”/>
</filter>
</invoke-target>

1925 March 2014
Client action C++ and Qt
bb::system::InvokeManager* _invokeManager =
new bb::system::InvokeManager();
void App::receivedInvokeRequest(
const bb::system::InvokeRequest& request) {
QByteArray data = request.data();
QtMobilitySubset::QNdefMessage ndefMessage =
QtMobilitySubset::QNdefMessage::fromByteArray(data);
handleNdefRequest(ndefMessage);
}

2025 March 2014
CONTENTS
• NFC Tags
• Peer to Peer
• Card Emulation

2125 March 2014
Transfer data from one device to another
• Share information just by touching
Any kind of data
• Photos, music files, address book contacts are typical examples
For larger items let NFC negotiate a Bluetooth connection
• No need for the usual BT pairing process
• Simple!
What is Peer to Peer NFC?

2225 March 2014
What is Peer to Peer NFC?
Bask in the admiration!
NFC ( and maybe
Bluetooth) Magic
Touch devices!
Select object to share

2325 March 2014
Share from QML
InvokeActionItem {
id: sharedNdefData
query {
mimeType: "application/vnd.rim.nfc.ndef"
invokeActionId: "bb.action.SHARE"
}
}
onShowing: {
// make NDEF message as byte array in C++
sharedNdefData.data =
_ndefFactory.getNdefVcardMessage(sendVcard.ndefFirstName,
sendVcard.ndefLastName, sendVcard.ndefAddress,
sendVcard.ndefEmail, sendVcard.ndefMobile);
}

2425 March 2014
Share from C++
NfcShareManager *_nfcShareManager = new NfcShareManager();
...
void NfcSharing::fileShareContentChanged(QString paths) {
NfcShareFilesContent request;
QList<QUrl> urls;
...
// Construct a list of local file URLs from file paths
...
request.setFileUrls(urls);
// share mode File means Bluetooth connection handover
_nfcShareManager->setShareMode(bb::system::NfcShareMode::File);
NfcShareSetContentError::Type rc =
_nfcShareManager->setShareContent(request);
}

2525 March 2014
CONTENTS
• NFC Tags
• Peer to Peer
• Card Emulation

2625 March 2014
What are we Emulating?
Almaden Valley
Health Club
Larry McDonough
Member Since: 2/11/2005
Membership &
Loyalty Cards
Credit Cards ID Cards
We are emulating Smart Cards

2725 March 2014
What are Smart cards?
A small
computer
Processor, OS,
file system
Can run special
apps called
‘applets’
Secure
Embedded in a
plastic card
Contacts and/or
contactless
interface
Almaden Valley
Health Club
Larry McDonough

2825 March 2014
Smart Cards & Readers
Almaden Valley
Health Club
Larry McDonough
Power
Communications
Smart Card Reader
With contact-based slot and
contactless interface (NFC)

2925 March 2014
General Architecture

3025 March 2014
BlackBerry Architecture

3125 March 2014
Card Emulation In Use
Admire your purchase
Optionally be notified of
transaction
Reader communicates
directly with SE
Touch handset to a
reader

3225 March 2014
Interact with Secure Element
...
rc = nfc_se_session_open_logical_channel(hSESession,
the_aid, sizeof(the_aid),
fcpResponseType, &seChannel, &openResponseLen);
...
rc = nfc_se_channel_transmit_apdu( seChannel,
the_apdu, apdu_size,
&exchangeResponseLen );
...
rc = nfc_se_channel_get_transmit_data(seChannel,
result,
&nReceiveAPDUBufferSize));
...

3325 March 2014
Transaction Notification
...
<invoke-target id="com.example.NfcTool.tl">
<entry-point>1</entry-point>
<type>APPLICATION</type>
<filter>
<action>bb.action.NOTIFY</action>
<mime-type>application/vnd.bb.nfc_transaction</mime-type>
<property var="uris“
value="aid://SIM/6e.66.63.74.65.73.74.30.31/"/>
</filter>
</invoke-target>
...

3425 March 2014
MNOs
Financial
Institutions
Retail
Transport
Secure
Provisioning
(e.g. TSM)
Secure
Transactions
(e.g. EMV)
Secure
Payments
(NFC)
NFC Payments EcoSystem

3525 March 2014
CONTENTS
• NFC Tags
• Peer to Peer
• Card Emulation

3625 March 2014
What is Virtual Target Emulation?
Smile at new allocation
of loyalty points!
Application completes
transaction
Reader communicates
with BlackBerry 10 App
Touch handset to a
reader

3725 March 2014
Fool that Reader!
• Virtual target emulation makes
your smartphone seem just like
an NFC tag or card
• The reader cannot tell them
apart
• Of course you cannot set the
UID of the emulated target –
that is not under your control

3825 March 2014
Emulating an NDEF Tag
...
nfc_ndef_record_t *ndefRecord =
makeCustomRecord(QString("my.rim.com"),
QString("myrecordtype"), tagData);
rc = nfc_create_ndef_message(&_emulateNdefMessage);
rc = nfc_add_ndef_record(_emulateNdefMessage, ndefRecord);
rc = nfc_start_ndef_tag_emulation(_emulateNdefMessage);
...

3925 March 2014
CONTENTS
• NFC Tags
• Peer to Peer
• Card Emulation

4025 March 2014
What is it?
Read data from physical (plastic) contactless cards
• Right into your application
Reduce manual data entry
• e.g., credit card number
Make card usage tracking more convenient
• e.g., view card use history or balance on BlackBerry 10 smart
phone

4125 March 2014
What can you do with it?
1. Card details
required
2. User presents
contactless card
3. App reads details
from card and completes
form

4225 March 2014
How do you do this?
Exactly *how* depends on the card type
• A credit card is not the same as an ID card
• Transit cards are not all the same
Exchange APDUs with the card
• Response APDUs will contain the data you want
• You have to send the right command APDUs though
Touch card to BlackBerry to fill in form
• Details for credit cards are defined in the EMV specifications

4325 March 2014
How do you do this?
User delighted with result
of your thoughtful
feature
APDU ‘conversation’ with
card yields data
BlackBerry 10 App acts as
reader
Touch handset to a card

4425 March 2014
Code Example
...
rc = nfc_register_tag_readerwriter(TAG_TYPE_ISO_14443_4);
...
nfc_tag_transceive(target,
TAG_TYPE_ISO_14443_4,
the_apdu,
apdu_size,
response,
MAX_RESPONSE_SIZE,
&rlength);
...

4525 March 2014
Amsterdam Travel Pass
Review your last two
transactions
APDU ‘conversation’
with Transit Card
BlackBerry 10 App acts
as reader
Touch handset to Transit
Card

4625 March 2014
NFC APIs APIs
R/W API
NDEF Write/Read (Invocation Framework)
ISO14-4
ISO14-3
ISO14-3 Raw
ISO15-3
P2P API
NDEF send/receive (Invocation Framework)
ISO18
VCE API
ISO14-4
UICC CE API
SIM Access
Transaction NTF

4725 March 2014
NFC Apps Support (Built in)
SmartTags
Contacts
Browser
Gallery (Pictures, Video, Music Player)
DocToGo
File Manager
Calendar
Adobe Reader
Email
BBM
AppWorld
Call
Apps supporting NFC (implicit, explicit) out-of-the-box:

4825 March 2014
CONTENTS
• NFC Tags
• Peer to Peer
• Card Emulation

4925 March 2014
NFC Developer Resources
• http://tinyurl.com/cqfzf7yArticles
• https://github.com/blackberry/Cascades-Community-SamplesCode
• Martin Woolley @mdwrim
• John Murray @jcmrim
• Rob P Williams @robbieDubya
Contacts

5025 March 2014
Questions & Answers
• http://tinyurl.com/cqfzf7yArticles
• https://github.com/blackberry/Cascades-Community-SamplesCode
• Martin Woolley @mdwrim
• John Murray @jcmrim
• Rob P Williams @robbieDubya
Contacts
Larry McDonough @lmcdunna

5225 March 2014
Native C/C++/Qt
Application Developers
High Level Architecture
Web Application
Developers
Community and
Content Developers
UI Framework
Platform, device and
cloud APIs
BlackBerry 10 OS
Memory
Mgmt
Security Graphics
BlackBerry
Cascades
HTML5, CSS,
JavaScript
Sensors ….
Gaming Platforms
Android Runtime
Web Frameworks
Multi-
threading

Developing NFC Apps

More Related Content

Similar to Developing NFC Apps (20)

More from Larry McDonough (11)

Recently uploaded (20)

Developing NFC Apps