This post is being continuously updated with a collection of good learning resources.

Last updated on 11th Nov 2022.

Legendre’s Symbol

A good video by Michael Penn showing proof of the Legendre’s Symbol: https://www.youtube.com/watch?v=eKjjAr4EvmU (and good backflip) that kept me interested throughout the entire video.

A challenge on CryptoHack uses Legendre’s Symbol and more to find the quadratic residue and calculate the square root.

TCP Transmission

Video explaining TCP handshake and transmission step-by-step: https://youtu.be/v3m9F9nEpCA?t=862 by kanak (Connor Nelson) from pwn.college (ASU CSE 365).