esp_wifi_repeater VS proxmark3

esp32s and esp8266s are my favorite pieces of hardware... for $2 you can setup a wifi access point

https://github.com/martin-ger/esp_wifi_repeater

Have a look at one of the available WiFi repeaters (actually a WiFi NAT Router)

I'm trying to set up a wifi repeater using the binaries from https://github.com/martin-ger/esp_wifi_repeater. Flashing the software goes fine. Connects to internet fine. I set up the AP with a new name and password. Connecting to it seems fine but then it shows as connected, no internet. Any ideas?

Would something like this work? Connect to an ESP32 repeating the signal https://github.com/martin-ger/esp_wifi_repeater

I've never done an outdoor project but you'll need some waterproof strips and a sealed container for the mcu. You can buy waterproof strips in different led densities and styles from btf lighting in amazon and aliexpress, they are completely enclosed in a flexible plastic pipe (or hose?). Be careful with your maximum brightness since the leds can't dissipate as much heat. If they stay on during daylight you might lose many pixels. For the mcu I would use a small food container to which you can add extra waterproofing. If you need extra wifi range you can use an esp 8266 with this code on it https://github.com/martin-ger/esp_wifi_repeater

My mum has a portable WiFi device which is most time in her room, so the WiFi doesn't get to the living room and that's a problem but I love to solve problems so i did some googling and I found a GitHub repository for an ESP8266 repeater by martin-ger,the repo had a binary file for the repeater so I just flashed it into my esp8266 using esptool and it worked like magic. Click here to access the repository; however, there were some problems I had with this repeater(extender):

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

🔗 https://github.com/RfidResearchGroup/proxmark3/releases/tag/v4.17140

After pulling and compiling a newer proxmark3 generic firmware from the RfidResearchGroup repo I got farther but now have a new message I've not found much about with static nonces. 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

You will have to do the leg word, but this is a starting point: https://github.com/RfidResearchGroup/proxmark3/blob/master/client/luascripts/hf_mf_sim_hid.lua

Grab yourself a Proxmark3, read the instructions here, and you can extract your iClass elite key in a few seconds. You can pick up a PM3 easy for a few bucks.

I cloned whatever the latest commit was at https://github.com/RfidResearchGroup/proxmark3, which is what the guide on dangerous things suggests (where I bought my PM).