Breaking copy protection in MCUs: then and now
When you decide to copy protect the firmware on your MCU, how effective are efforts such as setting a lock bit or enabling chip erase modes?
Sergei P. Skorobogatov’s article provides an overview of the methods he’s tried against MCUs from various manufacturers. He outlines both invasive and non-invasive techniques such as chip depackaging, microprobing and fault generation.
This document is somewhat historical in nature, covering techniques developed between 1996-2000. Nevertheless it is regarded as one of the foundational works on this aspect of hardware hacking.
Sergei has updated this information with his PhD thesis from 2004.This entry was posted in Chips, encryption, how-to, security and tagged copy protection, MCU.