>>12195786Sure! Any textbook recommendations? Did you have any cryptosystems to analyze? Any concepts you wanted to delve into?
I'll start. Here's a simple classical cipher for you to decode:
VFXP VC RCB MMT HQ KGHA Z CGJ HKXCZ HL Z LGONJL SFBJ VC RFXHG RCB EYZA SM EYZA