DEFCON 34 Badge Firmware Analysis

Reverse engineering and static analysis of the DEFCON 34 hardware badge bootloader and firmware.

Key Security Findings

• Identified unauthenticated diagnostic UART header exposed on the PCB silkscreen.
• Disassembled boot1 stage loader in Ghidra and located memory check bypass logic.
• Documented extracted cryptographic keys and challenge-response routines.

Raw analysis notes available: 2026-08-13-defcon-badge-research.md