Top 5 Contactless Open-Source Projects

proxmark3

60 3,465 9.9 C

Iceman Fork - Proxmark3

Project mention: Flipper Zero: Multi-Tool Device for Geeks | news.ycombinator.com | 2024-01-21

I would check out the Proxmark3 Github repo [0]. They have a cheatsheet [1] with the basics on how to get started. I also did a talk about RFID security last year about the basics [2]
To get started, the basics are: low freq (LF) is usually around 125khz and is rarely encrypted (HID Prox is the most common in the US). The data is often encoded in Wiegand format for access control systems (something to keep in mind when reading the raw data).
High freq (HF) (aka NFC) is ~13Mhz and is readable by most Android phones with NFC. Not all tag data can be read however. HF cards support a lot of different options including data storage (normally in a block layout with permissions to read and write depending on keys) and encryption (iCLASS and SEOS being the HID offerings and very common). Some can be cloned (like hotel cards) while others (like SEOS) require a downgrade attack to work correctly (SEOS -> normal SEOS reader -> Weigand data -> older style card like HID Prox).
[0] https://github.com/RfidResearchGroup/proxmark3
[1] https://github.com/RfidResearchGroup/proxmark3/blob/master/d...
[2] https://www.youtube.com/watch?v=zKOAywZqisc

ChameleonMini

3 1,679 5.0 C

The ChameleonMini is a versatile contactless smartcard emulator compliant to NFC. The ChameleonMini was developed by https://kasper-oswald.de. The device is available at https://shop.kasper.it. For further information see the Getting Started Page https://rawgit.com/emsec/ChameleonMini/master/Doc/Doxygen/html/_page__getting_started.html or the Wiki tab above.
InfluxDB

www.influxdata.com sponsored

Power Real-Time Data Analytics at Scale. Get real-time insights from all types of time series data with InfluxDB. Ingest, query, and analyze billions of data points in real-time with unbounded cardinality.
RPi-Jukebox-RFID

26 1,267 8.4 PHP

A Raspberry Pi jukebox, playing local music, podcasts, web radio and streams triggered by RFID cards, web app or home automation. All plug and play via USB. GPIO scripts available.
ChameleonMini-rebooted

1 376 0.0 C

Chameleon Mini revE rebooted - Iceman Fork, the ChameleonMini is a versatile contactless smartcard emulator (NFC/RFID)
ChameleonMini-rebootedGUI

1 280 0.0 C#

Windows based GUI for Chameleon Mini, the contactless smartcard emulator (NFC/RFID)
WorkOS

workos.com sponsored

The modern identity platform for B2B SaaS. The APIs are flexible and easy-to-use, supporting authentication, user identity, and complex enterprise features like SSO and SCIM provisioning.

NOTE: The open source projects on this list are ordered by number of github stars. The number of mentions indicates repo mentiontions in the last 12 Months or since we started tracking (Dec 2020).