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Questions tagged [lib-nfc]

libnfc is the first libre, platform-independent, low level NFC SDK and Programmers API.

libnfc is the first libre, platform-independent, low level NFC SDK and Programmers API.

Official page: http://nfc-tools.org/index.php?title=Libnfc

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Get keys from a Mifare Mini 0.3K

I am playing around with a Mifare MINI 0.3K tag and a PN532 module connected with an FTDI cable via UART to Ubuntu. I successfully managed to get the PN532 working with libnfc and mfoc/mfcuk. But I am having issues with this Mifare MINI 0.3K…
Aloe Vera
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What is the actual reading speed of a nfc reader (PN532)?

I have spent a lot of time trying to improve reading speed for a Desfire EV1 with a PN532 SPI reader and the times I get are too high compared with a MFRC531. I'm using libnfc for PN532 and I used NXP native commands for MFRC531. Could someone tell…
crossmax
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Which NFC Tag is this? nfc-list Mifare Ultralight/Classic 7Byte UID

Which NFC Tag is this? ATQA 00 44 SAK 00 = Mifare Ultralight 7Byte UID ATQA 00 04 SAK 08 = Mifare Classic 1K 4Byte UID Mine: ATQA 00 44 SAK 08 16 Sectors 64 Blocks $ nfc-list nfc-list uses libnfc libnfc-1.7.1-191-g216145f NFC device: ACS ACR122U /…
user9818781
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Decoding data from RFID tag's memory contents in Android Studio

I am developing an App to read the Barcode of our library books from there respective RFID tags. I am using android.nfc.tech.NfcVand able to read the memory contents of the tag, which seems to be Hexadecimal byte array. how can I decode the BarCode…
Abhinav Rawat
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libnfc emulate tag type4(14443b)

I have 2 questions about emulate and libnfc. I saw on PN53x that i can't emulate iso14443b with pn53x , why is that? how can i emulate it on another way ? when i tried to emulate tag type 4 with the exmample that on site with 2 reader of…
user8684561
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Ubuntu Mate - Pi 3 - NFC 1.7.1

I plug my pn532 NFC V3 in my Pi, I use this Scheme https://i.stack.imgur.com/deOfX.jpg I'm using a Ubuntu Mate 16.04, I follow this steps: Plug the board. Change this file /boot/config.txt dtoverlay=pi3-disable-bt enable_uart=1 Change…
user3276144
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How to decrement value on a MIFARE Classic value block using PN532 reader?

I'm trying to manage value block with a Mifare Classic and PN532 reader. I'm using an open source library named "libnfc" but I do not see anything related to value blocks in this library. Does anyone know how I could make increment, decrement and…
crossmax
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Using libnfc with golang

I successfully compiled libnfc written in C under Windows. After compilation I get 3 files: libnfc.dll, libnfc.dll.a, libnfc.lib. I want to call functions of this library in my Go application. My test program package main /* #cgo CFLAGS: -I . #cgo…
qwelp
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How to handle password storage for my project?

I'm currently planning a project that will unlock a Pi with NFC and then log in to RDP. The users will never need to know the password to login to the VM, since their NFC card will handle the log-in. So how to approach this? I was thinking: A NFC…
iSidle
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How to uniquely identify an NFC Reader from other NFC Readers?

Using NFC Reader ACR122U Installed libnfc from here link1 Running an Attendance Project on Raspberry Pi 2 using python, mysql on github . What do I want to achieve? I WANTED TO MONITOR THE USER when they scan from the NFC Reader Explaining in…
abdulazizalmass
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Using NFC NTAG216 for Access Control

How safe is it to use NXP's NTAG216 with pwd and pack authentification for room access control? On the official nxp site the target application for NTAG216 is not access control. The data on our tags is read and write protected by the pwd. We are…
bluen
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Phone recognize NFC tag wrong after writing with Raspberry

So I have some NTAG216 tag from NXP. They have 888 bytes memory. If they are used just with my Android application the phone recognise them as 888 bytes. But after I write some message to them with my Raspberry Pi using libnfc the phone recognizes…
Sándor Megyeri
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NFC IsoDep - Initial transactions

I have a NFC card that implements Mifare Plus over IsoDep, NFCa, and NDEF. I am communicating with the card via a PC dongle, and libNfc (not android). I have read thru the 7816-4 but am still confused as to what the first steps I should be taking…
Aaron Rosen
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Can PN532 with Raspberry Pi send NDEF message to an Android phone with NFC?

I am currently working on a school project that includes NFC communication to send posters (or URL) from PN532 (connected to a Raspberry Pi) to an Android phone. I have been looking for a library where I can implement SNEP/NPP in order to send an…
K.Y. L
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libfreefare mingw32-make error on windows

I am on windows 8 64 bits. I have installed successfully libnfc, and I am able to use the .exe examples that are in libnfc\utils (like nfc-mfclassic.exe; nfc-list.exe ...) I would like to manipulate Mifare cards and use NDEF Format, so I am trying…
wald
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