Is it possible to use FIDO UAF Standard on an Android mobile + NFC to opening doors?

This project is a simple prototype to verify how FIDO could be used in this scenario (see FIDO Security Reference). This card reader uses NFC to communicate with a specific Android Opening Door App, that emulates a NFC card using Android's Host-based Card Emulation functionality.

The card reader and Android Opening Door App depend of a third-party, called FIDO UAF RP Server.

Figure below shows all necessary components and the relation between them

1. FIDO UAF Demo Server

• If you prefer, there is a Docker container ready to use here: https://github.com/emersonmello/docker-fidouafserver

2. Door lock NFC card reader <- You are working on it right now!
3. Dummy FIDO UAF Client
4. Opening Door Android App

• 01 Raspberry PI 2 B or 01 Raspberry PI 3 B
• 01 Adafruit PN532 or 01 Elechouse PN532 NFC RFID module V3
• 01 Breadboard to connect raspberry and PN532
• 01 N channel MOSFET
• 01 Lock-style solenoid
• 02 Resistors - 300 Ohms
• 02 LED (red and green)
• 02 Diode 1N4001

1. To use UART on Adafruit PN532 breakout you must set to OFF the SEL0 and SEL1 jumpers
   1. To use UART on Elechouse PN532 NFC RFID module V3 you must set to OFF the switch 1 and switch 2.
2. Follow instructions (and pictures) below to connect all components

Or, if you have an Elechouse PN532:

• Libcurl
• Libnfc >= 1.7.1
• Json-c >= 0.11-4
• wiringPi library

sudo apt-get install git build-essential autoconf libtool libpcsclite-dev
sudo apt-get install libusb-dev libcurl4-openssl-dev libjson-c-dev

sudo raspi-config

• Select option "Advanced Options"
• Select option "Serial" and select NO
• Finish and reboot: sudo shutdown -r now

• Select option "Interface options"
• Select option "Serial", and select NO
  • Choose YES for Would you like the serial port hardware to be enable?
• Exit and reboot

git clone https://github.com/nfc-tools/libnfc.git
cd libnfc
sudo mkdir -p /etc/nfc/devices.d/

sudo cp contrib/libnfc/pn532_uart_on_rpi.conf.sample /etc/nfc/devices.d/pn532_uart_on_rpi.conf

echo "allow_instrusive_scan = true" | sudo tee -a /etc/nfc/devices.d/pn532_uart_on_rpi.conf

sudo cp contrib/libnfc/pn532_uart_on_rpi_3.conf.sample /etc/nfc/devices.d/pn532_uart_on_rpi_3.conf

autoreconf -vis
./configure --with-drivers=pn532_uart --sysconfdir=/etc --prefix=/usr
sudo make clean && sudo make install all

You can test your setup reading an ISO14443-A card using nfc-poll program that came with libnfc. Place a card on the reader and run the command:

cd ~/libnfc/examples
sudo ./nfc-poll

• Please, follow the instructions provided by official website. Or

• git clone git://git.drogon.net/wiringPi
  cd ~/wiringPi
  sudo ./build
  

1. Get the source code

• cd ~ && git clone https://github.com/emersonmello/doorlock_raspberrypi.git
• cd doorlock_raspberrypi

2. Change HOSTNAME and PORT values on Door lock NFC card reader's rp_settings.h file to the IP Address and PORT where you are running the FIDO UAF Demo Server

• For instance: nano rp_settings.h

3. Compile Door lock NFC card reader project

• make clean && make

4. Run it (sorry, you must be root because it is a requirement of wiringPi lib)
   • For instance: sudo ./dist/Debug/GNU-MacOSX/doorlock_raspberrypi

1. Start FIDO UAF Demo Server

• Follow the instructions provided by:
  • FIDO UAF Demo Server
  • Or, if you prefer, there is a Docker container ready to use here

1. Install Dummy FIDO UAF Client on your Android phone
2. Install Opening Door Android App on your Android phone
3. On Opening Door Android App touch on "Settings" on the main application menu and update "server endpoint" field to the IP Address and PORT where you are running the FIDO UAF Demo Server
4. On Opening Door Android App touch on "Whitelisting facetID" (to follow FIDO UAF specifications ).
   1. Or you can do it: On Opening Door Android App touch on "See app facetID" on the main application menu and insert the showed value in FIDO UAF Demo Server MySQL database. For instance: INSERT INTO facets (fDesc) values ('android:apk-key-hash:Lir5oIjf552K/XN4bTul0VS3GfM')

1. Open Opening Door Android App and touch "Register" button
2. Tap your mobile phone on "NFC reader"
3. Follow the instructions provided by application (i.e. put your finger on the sensor, etc.) and you should see the message "Access Granted"

I'm using supervisord to handle this task because it can also restart a failed process

1. Copy doorlock_raspberrypi binary to /usr/local/bin

• sudo cp ~/doorlock_raspberrypi/dist/Debug/GNU-Linux/doorlock_raspberrypi /usr/local/bin

2. Installing python2.7
   • sudo apt-get install python
3. Installing supervisord
   • sudo easy_install supervisor
   • echo_supervisord_conf | sudo tee /etc/supervisord.conf
4. Adding a program section to supervisord's configuration file
   • Add the follow lines at the end of /etc/supervisord.conf file

[program:doorlock]
command=/usr/local/bin/doorlock_raspberrypi

• For instance:

printf "[program:doorlock]\n command=/usr/local/bin/doorlock_raspberrypi \n" | sudo tee -a  /etc/supervisord.conf

5. Download supervisord.sh file and save it at /etc/init.d

sudo cp ~/doorlock_raspberrypi/supervisord.sh /etc/init.d
sudo chmod 755 /etc/init.d/supervisord.sh
sudo update-rc.d supervisord.sh defaults

• https://learn.adafruit.com/adafruit-nfc-rfid-on-raspberry-pi/
• https://curl.haxx.se/libcurl/c/libcurl-tutorial.html
• https://gist.github.com/leprechau/e6b8fef41a153218e1f4
• https://github.com/nfc-tools/libnfc/tree/master/examples
• https://netbeans.org/kb/docs/cnd/remotedev-tutorial.html
• http://pinout.xyz/