Go Down

Topic: Copying an RFID tag (Read 14 times) previous topic - next topic

fourchette

i believe trying to forge fake rfid tags is a very valid purpose.

if you break your own system, then you know where it is vulnerable. if you don't attack it yourself, some other person will do eventually. you want that person to be you.

easy or hard heavily depends on the tags type (for MIFARE AES, forget it)

however if it's not your own system, then it's not very legitimate indeed. just don't loose your tags is by far the easiest option :)

Grumpy_Mike

Quote
if you break your own system, then you know where it is vulnerable. if you don't attack it yourself, some other person will do eventually. you want that person to be you.

No.

Wrong on both counts, it is not inevitable that someone is going to attack your access control system. How many times has someone tried to open your front door and found it locked, perhaps only you when you forgot your key. If you do break your own system where does it get you? You can break any system if you have enough knowledge. Part of the security is not knowing what the system is in the first place.
However publishing how to break a system over the net is stupid and can only encourage illegal use.

A lock only ever stopes an honest man, but let's not put temptation in the path of the waverers.

Techone

@Grumpy_Mike

I agree with you. To show this knowledge is "not-ethical".  Too bad, =(   The school bus I am driving is equiped with GPS and a lots of RFID tags around and inside the bus. I have my ID card, "my" RFID reader / report sender. When I do "check engine", check-in/out, "pre-trip", "child-check" , the reader read those tags on the bus, and send a report. ( example : 1. scan your ID, select "check in or check out" , scan bus ID tag and send report. )

I was planning ( bad idea anyway ) to copy the engine tag and make a "tag" to represent the engine tag. In that way, it will fool the reader thinking it was an engine ID tag. My raison : learning and --> I don't want to open the hood at -25 C or lower.

Oh well, It was a bad idea...  :smiley-red:


Pezmc

This all sounds of great interest, especially Grumpy_Mike's comment about "Well in fact I can but I would like to here the OP come up with it."

It's probably true that this kind of information doesn't want to be in the public domain RFID is incredibly insecure. Especially if you have a big enough (powerful enough) reader!

Mind you my knowledge of RFID is poor, grumpy seems to know a lot more than me!

Mnbadger18

It's very possible. What you need is something call proxmark3 and a tag capable of communicating as an HID prox. The tags that work at designated T5557, T5567, and T5577. Proxmark is similar to arduino as it has a very large community support forum.

If your just looking for a copy of your key check out www.clonemykey.com

Good luck!

Go Up