Cloning RFID Tag

Projects General Guidance
1

So I have this device that I made, it's an RFID lock but sometimes I lose my RFID tag and also I need more to give out to my family. So I began wondering if I could make clones of my tags and give them out to family members and friends so they could pop in if they needed to. I began my hunt and I found this: http://www.ebay.com/itm/Stable-Mifare-RC522-Card-Read-Antenna-RFID-Reader-IC-Card-Proximity-Module-Kit-/281526939785?hash=item418c503089:g:ibUAAMXQzopRzjvk

How would I go about using it? I have seen reviews and such but no in depth guides/tutorials on how to use this. Thanks

3

I wanted to clone because I thought it would be something new instead of just boringly adding the code

5

Basically that reader is a Myfair reader and while the cards can store data the part that holds the ID number is not programmable so you can't clone the card.

6

Thanks for acutally being helpful here, could you just elaborate on why I can't clone it? Can I read the card and then write the hex output to writable tag?

7

Delta_G:
I thought you wanted to be able to have more than one card. Or is the real issue that it's not your lock so you can't add codes to it?

The real issue here is I'm asking for some help and I get people like you accusing me already, I just joined the damn forum!

But your right, it does sound a bit suspicious.

I have been using RFID locks for quite a bit but I wanted to create something new, program something just create a new idea that I can play around with and I discovered RFID tags. So instead of doing it the boring way, which is just to register a tag to the machine, I thought I might just clone the tag. If I wanted to just get more tags I wouldn't be here would I?

8

https://www.google.com/search?q=Mifare+write+id

http://www.proxmark.org/forum/viewtopic.php?id=896

Good luck!

9

Thanks but I have already looked at the proxmark before, that's why I came to the arduino forums, to see if I can create one using an arduino

10

In your original post you indicated you wanted a Mifare card with a writable ID field. I gave you a link to such a thing. The one in the link is sold by a Chinese vendor. They were $24 each in 2011.

11

I was wondering how I would implement the cloning procedure, I've got some tags already that I would like to program. Thanks

12

I've got some tags already

Are they writable? Do you have a writer? if so, then the process is trivial. If not, it's like holding up two compact discs and asking how to make a copy of one on the other using just your CD player.

13

Chinese clones of Mifare MFRC522 cards are resettable - that is you can reset the ID in block 0 of the card (even though it is supposed to be protected). In fact you can wipe the whole card and put anything you want on them.

If you're patient and watch my YouTube video #34, I do mention that the library I use allows the card to be reset and the ID overwritten. Non-chinese clones don't allow this but I guess that's not your concern here. URL to my videos are in the footer of this post.

14

RebornLegacy:
Thanks for acutally being helpful here, could you just elaborate on why I can't clone it? Can I read the card and then write the hex output to writable tag?

What part of

Grumpy_Mike:
the part that holds the ID number is not programmable

Are you having trouble with?

15

I am actually interested in this same subject. I have a large rfid card that I would love to clone into a smaller rfid. I cannot program another reader into the access system because I don't have access to it (I have a work ID card and a separate rfid access key) I would like to clone my access card to a smaller rfid sticker that I can attach to the rear of my ID card.

16

PaulS:
Are they writable? Do you have a writer? if so, then the process is trivial. If not, it's like holding up two compact discs and asking how to make a copy of one on the other using just your CD player.

Hahaha. Could you recommend any good RFID writers?

17

Also is the Mifare Card Reader only for Mifare cards? Or can it read regular FOB's as well? Like one of these: ZZ8950 KEY FOB STYLE RFID TAG SUITS LA5353 - Radio Parts

19

drew91101:
I am actually interested in this same subject. I have a large rfid card that I would love to clone into a smaller rfid. I cannot program another reader into the access system because I don't have access to it (I have a work ID card and a separate rfid access key) I would like to clone my access card to a smaller rfid sticker that I can attach to the rear of my ID card.

Start your own thread do not hijack this one. Find out what sort of RFID card you have because it matters.

20

RebornLegacy:
Or can it read regular FOB's as well? Like one of these: http://www.radioparts.com.au/product/01302542/zz8950?gclid=CjwKEAjwyPW5BRCC3JaM7qfW_FwSJACM3jz9KjSi6qnci3_bwSIjgdWqJqIDnerLecL-R0xbo_5kchoC6Y3w_wcB

That tag is EM-4001 compliant and therefore is not a Mifare card. However you can get Mifare cards in that form factor. Here is one such product.

and here is another:-
Mifare Tag

Also is the Mifare Card Reader only for Mifare cards?

Yes you can only read Mifare type cards with a Mifare reader. There are many different types of tags working in three distinct frequency bands. They are not inter-operable.

You might want to read this:-

21

Delta_G:
Or is the real issue that it's not your lock so you can't add codes to it?

Totally not an accusation even though in my I clearly said it was mine.

23

Delta_G:
Yes but belonging to you doesn't necessarily mean that you understand how it works or have any access to code it. It could be yours in the first sense but not yours in the second.

Even if you aren't acting nefariously, someone who is might view this thread later in order to help themselves break into something they shouldn't.

You said that I might not have access to the code, then you say that I should make a new card that enables a new mode? Anyways it still doesn't make sense. If I can't get an answer to my question here where should I be getting it?