The Sword Of Secrets - A Hardware CTF Platform

The author presents "The Sword of Secrets," an open-source hardware CTF (Capture The Flag) platform developed for hackers, tinkerers, and security researchers. This platform consists of a PCB board with NOR flash memory and a USB-to-serial chip, allowing direct communication with the chip via a serial interface to solve puzzles. The brain of this platform is a RISC-V processor, the ch32v003, an economical yet feature-rich microcontroller. The platform also includes a secure bootloader and OTA (Over-The-Air) updates, with plans to regularly publish new challenges.