# Flipfrid Basic EM4100 and HIDProx Fuzzer. ## Why Flipfrid is a simple Rfid fuzzer using EM4100 protocol (125khz). Objective is to provide a simple to use fuzzer to test readers by emulating various cards. - EM4100 cards use a 1 byte customer id and 4 bytes card id. - HIDProx cards use a 2 byte customer id and 3 byte card id. ## How 1) Select the Protocol with the left and right arrows 2) Select the Mode with the up and down arrows ### Info There are 2 Protocols: - EM4100 - HIDProx There are 4 modes: - Default Values: Try factory/default keys and emulate one after the other. - BF customer id: An iteration from 0X00 to 0XFF on the first byte. - Load Dump file: Load an existing dump (.rfid) generated by Flipperzero, select an index and bruteforce from 0X00 to 0XFF; - Uids list: Iterate over an input text file (one uid per line) and emulate one after the other. TODO : - blank screen on back press - Add second byte test to `BF customer id`