So while I knew hill ciphers were a form of block cipher (I'm assuming all the ones I have solved to date were ECB or something similar), so that got me thinking. Is it possible to use hill ciphers in other modes (ctr, ecb, cbc etc) on a binary alphabet?
A) Could you provide formula/examples of how it would work?
B) How would one launch a plain text attack against these?
C) How would I protect against this attack?
CTR. Assuming d is even (for the nonce and counter), and the nonce and counter are d/2
Any other relevant block cipher it could function as