proxmark3 VS libnfc

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

old guide proxmark3/proxmark3 is depreciated. current guides can be found at https://github.com/rfidresearchgroup/proxmark3

you could use linux (ubuntu) https://github.com/RfidResearchGroup/proxmark3/blob/master/doc/md/Installation_Instructions/Linux-Installation-Instructions.md

Iceman github

And for the magic commands that i send : https://github.com/RfidResearchGroup/proxmark3/blob/master/doc/magic_cards_notes.md

I got the Proxmark3 easy from Dangerous Things that comes with the Iceman firmware pre-installed. I'm reading through the documentation on the GitHub repo but I'm confused about which release I need to install. It sounds like I need to use one of the releases for generic (non-RDV4) devices, but the documentation isn't very clear. Is that the case? Also do I need to flash the bootrom and full image since the pm3 easy already has the firmware installed or do I just run the client?

https://github.com/rfidresearchgroup/proxmark3/ [ Proxmark3 RFID instrument ] [ CLIENT ] client: RRG/Iceman/master/187f4b3 2021-04-11 16:02:29 compiled with Clang/LLVM Apple LLVM 12.0.0 (clang-1200.0.32.29) OS:OSX ARCH:x86_64 [ PROXMARK3 ] device.................... RDV4 firmware.................. RDV4 external flash............ present smartcard reader.......... present FPC USART for BT add-on... absent [ ARM ] bootrom: RRG/Iceman/master/187f4b3 2021-04-11 16:03:06 os: RRG/Iceman/master/187f4b3 2021-04-11 16:03:27 compiled with GCC 10.2.1 20201103 (release)

Have you gotten libnfc(https://github.com/nfc-tools/libnfc) installed? it has nfc-emulate-forum-tag2 and nfc-emulate-forum-tag4