In this talk, I will be showing how to develop a fuzzer by writing my own, start with a simple but obviously slow implementation, and start adding techniques to it to make it faster and faster. These techniques require a deep technical understanding of how the Operating System works, but also how the CPU works. I'll be giving detailed explanations about how to use all CPU cores, how to make sure no time is wasted in the kernel, and why is that important, but also write your own fuzzing emulator and how to write faster assembly code that will speed it up. The results in speed will be mind blowing! This will all be put into context at the beginning of the talk, in order for you to understand that speed is, however, just one variable in designing a great fuzzer.

Sikkerhetsfestivalen 2024