So You Want to Build a Conference Hardware Badge!
Ray Felch // Recently, it was suggested that it would be cool to create a hardware badge for one of the upcoming InfoSec conferences. Admittedly, I have a pretty solid […]
Ray Felch
Introducing LoRa (Long Range) Wireless Technology – Part 1
Ray Felch // This write-up is the first of a multi-part series, providing an introduction to LoRa wireless technology and the LoRaWAN, low-power wide-area network (LPWAN). Interestingly, I came across […]
Understanding Zigbee and Wireless Mesh Networking
Ray Felch // Preface: Recently, I acquired a few home automation devices, so that I might research Zigbee and get a better understanding of how this very popular wireless technology […]
Using SDR to Build a Trunk Tracker – Police, Fire, and EMS Scanner
Ray Felch // Introduction Recently, I came across an interesting article on using software-defined radio (SDR) to create a Police, Fire, EMS, and Public Safety systems scanner. Viewing a few of these Trunk […]
Information From Thin Air: Using SDR to Extract DTMF from Radio Waves
Ray Felch // Disclaimer When using an FM transmitter, do not modify the intended operation of the module by amplifying the transmitted signal. Also, be sure that attaching an FM high gain […]
Using Infrared for Hardware Control
Ray Felch // Overview Infrared technology has been around for a very long time and is a wireless technology used in devices that convey data by way of Infrared radiation. […]
RFID Proximity Cloning Attacks
Ray Felch // Introduction While packing up my KeyWe Smart Lock accessories, and after wrapping up my research and two previous blogs “Reverse Engineering a Smart Lock” and “Machine-in-the-Middle BLE […]
Machine-in-the-Middle (MitM) BLE Attack
Ray Felch // Introduction Continuing with my ongoing Smart Lock attack research (see blog Reverse Engineering a Smart Lock), I decided to move my focus to a different type of […]
Reverse Engineering a Smart Lock
Ray Felch // INTRODUCTION Recently I was afforded the opportunity to research the findings of a well-known security firm (F-Secure), who had discovered a vulnerability in the Guardtec KeyWe Smart […]
1 2