NFC - quick primer


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NFC - quick primer

  1. 1. Amrit SanjeevBangalore Android User Group
  2. 2.  Short range wireless connectivity standard designed for communication between electronic devices . Based on inductive coupling in which loosely coupled inductive circuits share power and data over a distance of few centimeters. Operates at 13.56 MHz with data transfer rates from 106kbps to 424kbps
  3. 3.  PROS  Automatic establishment for connection . No manual intervention required  Very fast  Low energy consumption  Compatible with existing RFID infrastructures  Enables consumers to use one device over different systems. Cons  Does not ensure secure communication  No protection against man-in-the-middle attack or eavesdropping
  4. 4. Reduced cost of electronic issuance Consumer Increased revenuepreference for from interactiveNFC-enabled services services NFC enabled devices drive consumption of rich media content
  5. 5. Usage model Description ExampleTouch and go The user brings the device You see a poster of a event you storing the access code close to would like to attend. Bring your the reader for applications such device close to the poster to as ticketing, access control or download event information data capture from a smart chip in the posterTouch and connect Transactions like mobile Event tickets can be purchased payment where the user is from and electronic ticket box an required to put in a password to stored in your device authorize the interactionTouch and confirm Two NFC devices can be linked to Share pictures taken on the enable p2p data transfer device with other NFC enabled deviceTouch and explore NFC enable device might offer a Use of NFC to identify and range of possible features configure a high speed wireless including other high speed connection connectivity option. The simple NFC connection will allow user to explore a device’s capability and access other available services or functionality
  6. 6.  Passive communication mode  The initiator device provides a carrier field and the target device answers by modulating the existing field.  Target device may draw its operating power from the initiator provided electromagnetic field Active communication mode  Both initiator and target device communicate by alternately generating their own fields .  Device deactivates its RF field while its waiting for data.
  7. 7. 1. Fully integrated to handset  NFC controller and the secure element are both integrated to the handset.2. On the SIM Card  SIM card identifies a mobile subscriber on an operator’s cellular network.3. On the microSD Card  Integrated into the microSD card.  VISA Case for Iphone.
  8. 8.  Card Emulation mode  Function as credit cards, debit cards, badges, tickets etc  More for mobile wallet Reader mode  Reading tags just like barcode reading .  Access to additional information. P2P mode  Exchange information between devices
  9. 9.  Reader/writer mode  Active ~ Passive  Read a smart poster or tag Card/Tag Emulation  Passive ~ Active  Use the locality card at the next terminal Data exchange  Active ~ Active  Exchange of information
  10. 10.  Mobile payments  Credit/debit card at POS Mobile tickets  Boarding pass on public transport Smart posters, cards, stickers.  Tap a movie poster and see a trailer Substitute for keys  Unlock rental car door Access to network  Log on to WIFI network by tapping a tag
  11. 11.  Supported only on Android 2.3 (API level 9) 2.3 has only read functionality. 2.3.3 added  Reader/Writer API  Advanced Intent dispatching  Limited support for p2p connection (BT & DLNA) Not all devices have NFC hardware .  <uses-feature> and android:required have to be used in order to apply filters in android market place.
  12. 12.  NfcManager  High level manager, used to obtain the device’s NfcAdapter  Acquire an instance using getSystemService() NfcAdapter  End point for performing NFC operations.  Acquire an instance with getDefaultManager() NdefMessage  Represents an NDEF data message  Standard format in which records carrying data transmitted between devices and tags NdefRecord  Represents a record  Describes the type of data being shared and carries the data itself.
  13. 13. Class name SpecificationIsoDep ISO 14443-4MifareClassic –properties Classic MifareMifare Ultralight Mifare Ultralight propertiesNdef NDEF contentNdefFormatable NDEF format operationsNfcA ISO 14443-3ANfcB ISO 1443-3BNfcF JIS 6319-4NfcV ISO 15693
  14. 14.  Apple and Nokia are developing NFC enabled handsets AT&T, Verizon Wireless and T-mobile formed ISIS – a joint mobile commerce network based on NFC. Encourage retailers to support NFC in their businesses 39 apps are published in market place tagged NFC.
  15. 15. “Ultimately the retailer support is the key to NFC’ssuccess. No matter how many devices offer NFC supportfor business and how cool the technology is in theory, itstores don’t have the sensors to enable mobile payments, it just wont do much good in real world”
  16. 16. THANK YOUFor more information please feel free to contact