A hint for 10A
The Empty Vault › Forums › Bureau of Security and Signals Intelligence Forum › The official Challenge 10 tips and hints thread › A hint for 10A
16th December 2022 at 9:00 am
#87572
Harry
Keymaster
A hint for 10A
This is a Hill cipher, though a not particularly complicated one. They are usually set up using matrices and modular arithmetic, but in fact this one can be solved without any of that.