✅Lattice-based Cryptography (Lattice)

This is the best resource I found so far:

https://eprint.iacr.org/2023/032.pdf

Just read it.

You probably need a bit linear algebra background though, do the 3blue1brown course:

https://www.youtube.com/playlist?list=PLZHQObOWTQDPD3MizzM2xVFitgF8hE_ab

I will showcase a few ctf challs at ctfwriteup.com to demonstrate how to use lattice in ctf.