JTAG (Joint Test Action Group) pins are essential for debugging and programming microcontrollers, especially in IoT devices. Identifying these pins can be crucial for security researchers, penetration testers, and hardware enthusiasts. In this article, we’ll explore JTAGenum, a powerful tool that helps us discover JTAG pins in unknown chips using an Arduino. Why Choose JTAGenum?...
SWD stands as one of the lesser-noticed vulnerabilities of hardware security. Used for debugging and programming embedded systems, SWD allows developers to communicate directly with microcontrollers located on hardware devices – offering convenience during development but providing an attack surface that malicious actors could exploit. We will delve into its depths here in this article...
JTAG headers play an essential role in embedded systems development, allowing developers and engineers to access low-level parts of devices for debugging and testing purposes. Understanding what a JTAG header is and its functions is essential for anyone involved with hardware development. In this article, we’ll dive deeper into its details, exploring its importance while...
With this comprehensive guide, we aim to demonstrate how the Joint Test Action Group (JTAG) interface can provide hardware security. Created during the 1980s by the Joint Test Access Group, JTAG revolutionized PCB testing and debugging processes; using our multi-part series, you’ll learn to harness its power for security research, firmware extraction, and memory manipulation....
