At bsides this year they showed exactly that. It does not appear he's uploaded slides yet but here is link to session: https://bsidessf2020.sched.com/event/Ybg

At bsides this year they showed exactly that. It does not appear he's uploaded slides yet but here is link to session: https://bsidessf2020.sched.com/event/Ybgu/break-crypto-like-a-pro https://bsidessf2020.sched.com/event/Ybgu/break-crypto-like-... He said he was going to check in his code to GitHub so may be able to find same with some detective work. Essentially you could xor two encrypted images with the same OTP and see them sort of superimposed on one another.