Proxmark3 community

havry

Contributor

Registered: 2019-05-05

Posts: 2

Real time ISO14443A sniffing app

Hi all,

as part of my final thesis I developed a simple Android application for real time ISO14443A sniffing. A short demo of the app in action can be seen here: https://youtu.be/HmmO1glpU6s

I added a real time LogTrace function to the PM3 firmware that writes data directly to the USB serial which is then received by the app and shown in a list. The app uses Android's USB API so that root is not needed. Sources for both the modified firmware and the app are linked below.

I tested the app on Nexus 5, Nexus 5X and Motorola E4 Plus. Known issues are that with less powerful phones, such as the Nexus 5, the Proxmark's internal DMA buffer sometimes overflows if there is a large amount of data sniffed in a short amount of time and also the timestamps of individual eavesdropped frames are not accurate. The app does not utilize them at the moment.

In case you just want to experiment with the real time sniffing without installing the Android app, you can use the following Python script: https://github.com/h4vry/rtclient-python

Modified PM3 firmware: https://github.com/h4vry/proxmark3
Android client app: https://github.com/h4vry/rtclient-android

iceman

Administrator

Registered: 2013-04-25

Posts: 9,538

Website

Re: Real time ISO14443A sniffing app

I think this function is cool.