All Questions
23 questions
3
votes
3
answers
2k
views
Do NFC tags have unique, read-only IDs?
I am trying to implement an authorization system based on general NFC tags. One of the concerns I want to address is tag cloning. I have read some literature ensuring tag authenticity by using a read-...
- 809
2
votes
0
answers
553
views
How to Write applicaition on Mifare Desfire EV2 NFC badge
I want to write a simple application (open URL in the Browser) on a Mifare Desfire EV2 badge. There is already a non-NDEF proprietary format application on the badge. The badge supplier confirms the ...
- 79
0
votes
1
answer
137
views
Storage System for NFC Cards
At the moment I'm exerpimenting and researching with and about NFC.
I use Mifare 1k Tags and I recorgnized that there are Sime Blocks/Sectors where I'm not allowed to Write on. I've found an ...
- 65
3
votes
1
answer
13k
views
MIFARE Classic standard keys
I have two NFC tags with different keys for their sectors:
Tag 1: This tag contains an NDEF message.
Sector 0 = A0:A1:A2:A3:A4:A5 for key A
Sector 1 to 15 = D3:F7:D3:F7:D3:F7 for key A
Tag 2: No NDEF ...
- 404
1
vote
1
answer
645
views
Can I program an RFID tag to present natively-actionable data to a smartphone (such as a URL), alongside other custom data?
I've learned that the NFC tag spec offers a few standardized formats (plain text, e-mail, Wi-Fi SSID, business card data, URL, etc.) that compatible phones are capable of natively responding to simply ...
- 2,011
1
vote
1
answer
1k
views
.Net Library and RFID Reader could I use to get NDEF message from NXP ICode SLIX?
We would like to read NDEF records as well as Tag ID from our tags coming from production using any suitable .Net library. But as far as I saw this kind of NXP ICode SLIX seems to be poorly supported ...
- 1,824
0
votes
1
answer
2k
views
NFC tag user memory binary [duplicate]
I'm trying to read NDEF records out of some NTAG213 & NTAG216 NFC tags, and I seem to be getting some extra bytes in the user memory i'm not expecting.
Based on the spec, the user memory should ...
- 3
-2
votes
1
answer
1k
views
Read or emulate NFC card with Android 4.2.2
Can I read or emulate with Android 4.2.2 (on a Galaxy S4) ISO/IEC 14443B (NFC) cards like SRI 512?
If yes what can I emulate? All the card data?
4
votes
1
answer
3k
views
Are NFC tags and NFC cards the same thing?
Are NFC tags and NFC cards the same thing? The Android documentation mentions both. "NFC tags" when reading simple tags, but then says "NFC card" in the HCE documentation. Can I assume these are the ...
- 93
-2
votes
1
answer
1k
views
storing image file to MiFare classic 4K
i'm writing NDEF data with a MIME type of text/plain to a MiFare classic 4k NFC tag , i also have to store a jpg (or any other possible format)in the NFC tag,i'm wondering how this could be done.
- 748
2
votes
1
answer
1k
views
Cannot format Type2Tag to NDEF with Python's nfcpy library
I am using the nfcpy library to try writing NDEF records to a Type2Tag. Apparently these tags are not NDEF compatible. nfcpy offers a format() function which is supposed to make the tag NDEF ...
- 3,586
2
votes
2
answers
4k
views
Defining a NDEF Message
I am working on a Python project with my Raspberry Pi and the RFID-RC522 board. As NFC tags I use NXP NTAG213. My plan now is to store links on the tags. I can read/write on them without a problem. ...
- 4,108
0
votes
1
answer
966
views
NFC Update Binary command sequence not clear
I write data to a 14443A Tag with a HTC One SV (PN544, Android 4.1.2), using the "binary update" APDU command, but I see between the message size (byte#5) and the beginning of the NDEF record two ...
- 81
1
vote
1
answer
11k
views
How to NDEF format NFC-Tags?
Good evening,
your page already helped a lot but I discovered problems when trying to format an NFC-tag and I couldn't find a topic related to NDEF-format a tag.
First I have to say that I'm new to ...
- 49
3
votes
2
answers
1k
views
NFC PN544 NDEF read command flow
I'm using an AS3953 to emulate an NFC Tag, and was already able to read out a simple NDEF message using Samsung S4 or Fame with Broadcom chipsets,
now I'm trying to make it work with a HTC One SV ...
- 81