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 this technology while researching a GPS tracking project that I was working on and quickly determined that this technology might be a viable alternative to […]
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 interconnects with the internet of things (IoT’s) and to determine just how secure this platform really is. I was already somewhat familiar with home automation […]
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 tracking scanners on Amazon, I quickly discovered that they are not cheap at all. You can spend several hundred dollars on a Trunked Radio tracking scanner; however, we […]
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 antenna will NOT be transmitting outside the legal range for RF emissions. When transmitting any data, be sure you do not accidentally break any laws by illegally […]
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. Infrared is electromagnetic radiation (EMR) with a wavelength just beyond the visible light spectrum. Inasmuch, Infrared can not be seen by the naked eye, Fun fact: Although […]
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 Attack”, I came across a couple of KeyWe RFID tags. Although I was somewhat already familiar with RFID (Radio Frequency ID) technology, I decided this […]
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 attack technique, namely a relay attack. The relay attack is a form of MitM attack, not to be confused with the more well-known replay attack. […]
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 Lock. The F-Secure people found that due to a design flaw, an attacker could intercept and decrypt traffic coming from a legitimate owner of the […]
Ray Felch // Introduction: After completing and documenting my recent research into keystroke injections (Executing Keyboard Injection Attacks), I was very much interested in learning the in-depth technical aspects of the tools and scripts I used (created by various authors and security research professionals). In particular, I was interested in creating my own software/hardware implementation […]
