!Con 2021 - compilers HATE him: use this ONE WEIRD TRICK to hide a message...! by William Woodruff

Channel:
United States Confreaks
Subscribers:
42,400
Published on ● Video Link: https://www.youtube.com/watch?v=SlFe2C26TkU


Duration: 10:43
33 views
1

compilers HATE him: use this ONE WEIRD TRICK to hide a message in your x86 program!! by William Woodruff

Steganography is the art of hiding (not encrypting!) messages within otherwise inconspicuous data. Typical steganographic techniques involve media formats: images, movies, and audio. But what if we can hide messages within compiled programs themselves?? This talk will go through a whirlwind tour of steganography and the x86 architecture, and then show you ONE WEIRD TRICK in x86’s instruction encoding that allows us to do exactly that!

William Woodruff is a security researcher at Trail of Bits, primarily doing DARPA-funded research into program (LLVM) and binary (x86) analysis. During his free time, he likes to blog, ride bicycles, and do a bit of open source work (most recently in Rust). He’s slowly working on completing the system of German Transcendental Idealism.



Other Videos By Confreaks


2022-10-13!!Con 2021 - How !!Con came to be!
2022-10-13!!Con 2021 - Closing Keynote: The Joy and Excitement of Forbidden Computer by Kate Temkin
2022-10-13!!Con 2021 - making our own napster so we can party like it’s 1999! by Martin Gaston
2022-10-13!!Con 2021 - Ride on Model Railway Signalling using Kubernetes! by Jon Kingsley
2022-10-13!!Con 2021 - How layers upon layers of hacky abstractions turned Doom II into... by Kimberly Wilber
2022-10-13!!Con 2021 - Geometric derivations of RGB colorspace! The strange eyeball science... by Laura Kurup
2022-10-13!!Con 2021 - Making Music! In Emacs?! by Zachary Kanfer
2022-10-13!!Con 2021 - The Brave Little Database! by Alicja Raszkowska
2022-10-13!!Con 2021 - It’s a picture! It’s a program!! It’s Piet!!! by Anjana Vakil
2022-10-13!!Con 2021 - Dithers of the Error-Diffusion Kind! by Daniel Temkin
2022-10-13!Con 2021 - compilers HATE him: use this ONE WEIRD TRICK to hide a message...! by William Woodruff
2022-10-13!!Con 2021 - Option hack that 30 year old oscilloscope! by Tom Verbeure
2022-10-13!!Con 2021 - Enter the Minus World! Nintendo Cartridges Share Secrets! by Paul Pollack
2022-10-13!!Con 2021 - Oh, no! The Lowest-level* Programming Language is Unicode-aware... by JeanHeyd Meneide
2022-10-13!!COn 2021 - tzdata: Back to the Future! by John Feminella
2022-10-13!!Con 2021 - It’s like you’re actually there! Mouse synchronization in an... by Paweł Marczewski
2022-10-13!!Con 2021 - Changing a Single Byte Saves Me Seconds Every Day! by Sven Dahlstrand
2022-10-13!!Con 2021 - Do your eyes hurt? All you need is cardboard and motors!!... by Dasha Llina
2022-10-13!!Con 2021 - The musical password manifesto: you have nothing to lose but your... by Amara Jaeger
2022-10-13!!Con 2021 - It’s my party and I’ll build my own virtual social platform if ... by Sara Farquharson
2022-10-13!!Con 2021 - Nifty Weaving Tools: A Different Kind of Color Picker! by Rebecca Ravenoak


Tags:
!!Con
BangBangCon
TechTalks