> My low-cost voltage gliching is an homemade HW electronic system, dedicated to perform fault injections in a suitable manner. The total cost of this electroni

> My low-cost voltage gliching is an homemade HW electronic system, dedicated to perform fault injections in a suitable manner. The total cost of this electronic board is less than 5$, which proves fault injection is a very low cost technique and can be achieved by limited hackers. Has he released the schematic for this? I'm thinking it's just a small npn pulling the power pin to ground, and controlled by a microcontroller. Edit: He talks about his glitcher here: https://limitedresults.com/2019/05/pwn-mbedtls-on-esp32-dfa-warm-up/ https://limitedresults.com/2019/05/pwn-mbedtls-on-esp32-dfa-...