038 - My Favorite Random Number is 5
Colin O'Flynn, founder of NewAE Technology, explains how differential power analysis (DPA) and fault injection allow attackers to recover cryptographic keys from embedded devices by measuring minute power variations or disrupting clock/voltage signals. He details the mechanics of side-channel attacks, the importance of random number generation, and the limitations of 'military grade' encryption claims. O'Flynn also discusses his open-source tool ChipWhisperer, electromagnetic fault injection hardware like BADFET, and the broader industry challenges in securing IoT devices against such physical attacks.