Solving Session Recap - September 15, 2021

discussion on counting pixels on LP images:
(sorry shaman you weren't here)
there's no harm, and if anybody wants to do it, by all means go ahead - it only helps to have more info
pixel values might be helpful if somebody wants to recreate the original pdf (assuming it was originally a pdf, which aligns with the artifex software and some tiny connections only found when converting pdf to jpeg)
unless there is some serious amount of primes, it's quite easy to discard
questions about pixels are asked more often than you might think, so its helpful to have answers to those

i (puck) want to do a beginner cryptography tutorial:
	basic what is cryptography, what is a cipher, ...
	frequency analysis, various common analyses - show why common ciphers don't work