rfid – Page 17 – WindowsTechs.com

CarontePass: Open Access Control For Your Hackerspace

Posted on April 14, 2016 by Jenny List

A problem faced by all collaborative working spaces as they grow is that of access control. How can you give your membership secure access to the space without the cost and inconvenience of having a keyholder on site at all times.

[Torehc] is working on solving this problem with his CarontePass RFID access system, at the Kreitek Makerspace (Spanish, Google Translate link) in Tenerife, Canary Islands.

Each door has a client with RFID readers, either a Raspberry Pi or an ESP8266, which connects via WiFi to a Raspberry Pi 2 server running a Django-based REST API. This server has access …read more

Continue reading CarontePass: Open Access Control For Your Hackerspace→

How Mifare classic nested attack works?

Posted on December 7, 2015 by michnovka

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 f… Continue reading How Mifare classic nested attack works?→

NXP NTAG 21x/Desfire password protection and Original signature, protects against cloning?

Posted on October 6, 2015 by clark

I saw a few threads about NFC NTAG against cloning and NTAG Desfire, I just want to find out if NTAG 21x with their “New” password protection and “Original Signature against cloning” really does provide the security against it(the cloning … Continue reading NXP NTAG 21x/Desfire password protection and Original signature, protects against cloning?→

Approach to hack RFID Cards

Posted on September 21, 2015 by ysj

Recently RFID cards 13.56Mhz band caught my eye. What is the step by step approach to hack RFID Cards? I have a rough idea, but there are still quite a few doubts.

Identify the type of the card. Eg. Mifare Classic

Questions:
How do you… Continue reading Approach to hack RFID Cards→

Code execution through JSP RFI?

Posted on September 18, 2015 by isoman

I’m working on improving my understanding of RFI (Remote File Inclusion), especially in JSP apps.

I’ve created a vulnerable application that imports a JSP page from another server to replicate the behaviour of a real RFI.

T… Continue reading Code execution through JSP RFI?→

Do RFID key cards track the user through entry ways?

Posted on March 20, 2015 by Jim Hardes

At work we use RFID tags to enter the building and each floor. The tags double as photo ID, I always wondered if they are used (or can be used) to keep track of staff movements.

I always assumed that they were tied to a staf… Continue reading Do RFID key cards track the user through entry ways?→

Is it possible to brute force a card reader lock?

Posted on January 15, 2015 by Sam Fisher

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 ca… Continue reading Is it possible to brute force a card reader lock?→

Is it possible to clone an RFID/NFC card using a simple RFID reader, for future reuse and impersonation?

Posted on October 16, 2014 by Sparkler

RFID/NFC technology is used in credit cards and many other personal identification applications.

Is it possible/how easy is it to clone a card using a simple RFID reader?

In other words, can the retrieved information be reused in the fut… Continue reading Is it possible to clone an RFID/NFC card using a simple RFID reader, for future reuse and impersonation?→