Collaborate Disseminate
In a way, an e-paper display makes an excellent foundation for a reprogrammable RFID card. The display only needs power during a refresh, and 125 kHz RFID tags are passive …read more Continue reading RFID Emulator + E-paper Badge Can be Programmed With Sound
I am trying to write a small explanation for a customer, who wants to understand why his Mifare Desfire transponders are safe from being cloned.
I was trying to search for an easy scheme or text that explains how the authetication process … Continue reading Mifare Desfire authentication process / cloning protection
Anyone with more than one cat can tell you that the joy mischief they bring into your life is much more than twice that of a single cat. And if …read more Continue reading Cat Feeder Depends on RFID to Keep the Peace at Dinnertime
RFID tags wirelessly provide a wealth of information on products or other items, but they can only be read by dedicated portable devices. That may soon change, however, as a tag-integrated chip and a software update could allow everyday smartphones to … Continue reading Software update and tiny chip could turn phones into full-on RFID readers
I bought some mifare desfire ev2 cards because i needed a card that can be recognizable to everyone but that can’t be cloned. So my idea was to store a private key into the card in a secure way and a public one that everyone can see. my ca… Continue reading Mifare Desfire EV2 data signing
From what I know, Mifare Classic cards are easy to copy/clone using a device such as a flipperzero, and it has to do with authentication using the CSN (card serial number)
However, let’s say that a system has 2 kinds of readers, a reader t… Continue reading Is using the CSN of a mifare desfire EV2 safe?
My building gave me a single fob. I made 3 copies of it for my family and they all opened the building entrance but not my actual apartment door, until one day the building told me they had noticed I had made copies of the fobs which was n… Continue reading Can a security system detect there are multiple copies of a single-issued fob?
Digital music has made keeping all your tunes with you a lot more convenient, but have we lost something with dematerialization? [Jordi Parra] felt that there was something lacking with …read more Continue reading Spotify Player Brings Back Physical Media
Consumer electronics aimed at young children tend to be quite janky and cheap-looking, and they often have to be to survive the extreme stress-testing normal use in this situation. You …read more Continue reading Kids’ Jukebox Based on Arduino with RFID
What’s a Scramblepad? It’s a type of number pad in which the numbers aren’t in fixed locations, and can only be seen from a narrow viewing angle. Every time the …read more Continue reading Scramblepad Teardown Reveals Complicated, Expensive Innards