[xw30992]

That's because this article is more of a part 3 of a series of articles.

Part 1: https://eprint.iacr.org/2023/090 How to break ESP32 AES with power analysis

Part 2: https://courk.cc/breaking-flash-encryption-of-espressif-part... How to do it for no more than $100

Part 3: This article Improving the performance