IT Security Stack Exchange
IT Security Stack Exchange

Questions tagged [rfid]

Radio Frequency identification

95 questions
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Privacy and security risks of Green Card scanning with or without offical RFID protection envelope

The presentation slides by Bishop Fox at RFID Hacking - Live Free or RFID Hard - 01 Aug 2013 – Black Hat USA 2013 – Las Vegas, NV briefly describes a number of RFID hacking approaches, and ends with a picture and statement about the sleeves that are…
nealmcb
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How Mifare classic nested attack works?

I familiarised myself with all available docs on mifare nested attack available, yet I fail to see how predicting tag nonce can help cracking keys. When tag sends nonce (N_t), key stream ks1 is created using secret key, UID and N_t. Any further…
michnovka
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Is it possible to brute force a card reader lock?

Recently they've added a new lock to my building which looks like this: Now we were given the code to access the building, but not the cards/tags. I swiped my tag used for a different lock and it does beep, so I know it can read one. My question is…
Predrag Beocanin
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Securing RFID membership cards

Let's say I issue RFID-enabled membership cards for events. People can have their credit cards, personal ID, etc tied to this membership card. When they come to my events, they can use this card to pay for things, verify age, etc. From what I…
ieatpizza
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How secure is the "read-only" feature of a passive NFC tags?

I want to write some data in a NFC tag (probably mifare) then put a permanent lock to it, so it can be read-only. How secure is that ? As in, how am I certain that nobody every will be able to re-write it after ? Thanks !
Taiko
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How does duplicated RFID work?

I was surprised to find out today that condominium, garage etc. access cards can be duplicated and used without being registered with the reader system. Are these RFID cards? Does it mean that store-value cards for transportation can also be…
Jake
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How are RFID access systems compromised?

http://www.incontrol.co.nz/82/Cards-and-Tags Say, for example, a group of people were given the card tag, "Proximity Blue Key Tag", in the link above. This card tag gave access to buildings 'A' and 'B' to those with the cards (card AB). Another…
user55046
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RFID lock security

first of all, i really apologize for asking this kind of generic question, but since i am a complete newbie in this area, i hope you wont mind. I found a nice and cheap RFID powered locking system…
Joskosa
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1 answer

Using metal business card holders as RFID wallets

I have been reading about RFID technology and products. Are metal business and/or credit card holders viable substitutes for RFID wallets? Are all metal wallets Faraday cages?
Vic
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RFID – based identification card

I have the question below, I did question 1 and 2. I am failing to understand question 3. You have been asked to participate in developing the requirements for RFID-based identification card for students, faculty and affiliates at a…
Siduduzo Godfrey Manqele
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RFID safety defense

RFID credit cards are designed for short-range operation (1 centimeter), and radio fields drop off with the square of the distance. Even as close as 1 meter you're talking about a field 10.000 times weaker. That also means a reader can protect the…
JDouce
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Satellite dish giving off RF signal with no reciever

I have a pretty decent and new satellite dish on my roof (Direct TV) but have no receiver in use. It was still technically connected to my cable lines and I found RF signals all over that section of the house. There was no receiver connected…
curious
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Pseudo-Unique PICC Identifier in Passports/ID Cards

I'm currently researching fingerprint abilities of german ID cards. These cards are compliant to ISO 14443 (the same standard as for passports). I found a part that caught my attention and I have a question concerning this, as I have no chance to…
paraa
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What are the different types of RFID shields for cards? (Some seem to block 1 side only, some affects all nearby cards regardless of side, etc.)

I'm new to RFID blocking and find it interesting. I came across this video to learn more and just have 2 questions https://www.youtube.com/watch?v=NKwJwOm3bfI Why would Vaultcard (4:42-5:30) protect both sides while Antetoko (8:47-9:20) protects one…
kennlj
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RFID protected wallet

Is there something I can put behind my bus pass in my rfid protected wallet so that it will scan on the busses. At the moment I have to take it out to use it.
David Rutter
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