rickdoesburg

Cloning a 7-byte UID MFC (Mifare Classic) 1k card and more

This is a little blog about my trials of figuring out how to clone a 7-byte 1k MFC card and more I discovered. I'm not an expert, this is just what I found out. I'm writing it down because I couldn't find a single place where this info was grouped together.

A little while ago I bought a Flipper Zero because I was interested in the world of NFC/RFID tags and I wanted to figure out a way to clone my NFC card used to open the underground waste container in my neighbourhood.

Findings

• It turns out most of my NFC cards used for various services are so called MIFARE Classic (MFC) 1K cards. These appear to be the most common card used for semi-secure things. The tag used to enter my office is a MIFARE DESfire card, which as far as I know, isn't clonable unless you have the decryption keys.
  • There is also a MIFARE Classic 4K version which can store more data. I haven't encountered this one yet so nothing I can tell you about it.
• The MFC Classic

sepastian

Purpose

Stream HDMI video from a Nikon D7000, for usage in online meetings, video recording, etc.

Based on this video on Youtube.

Steps

1) Download firmware

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Use this as an example on how to start the virtual console without the need of Java Web Start or accessing it from the web interface.
You can use the user and password that you use for the web interface.

You need an old JRE... I used 1.7.0_80 from the Server JRE package, also I have tested successfully 1.7.0_79 with MacOS.
You don't need to install it, just extract it or copy the files in "jre" folder.

Open the viewer.jnlp file that you get by launching the virtual console from the web interface with a text editor.
Note the urls to the jar files. Download the main jar file avctKVM.jar and the libs for your operating system and architecture.
Extract the dlls (.so Linux, .jnilib MacOS) from the jar libs.