Howdy, I was wondering if someone would be able to elaborate on this line: https://github.com/chicks/aes/blob/master/lib/aes/aes.rb#L155. I'm wrapping my head around AES and was confused by the modification of the key here. If a key is 256bit, is it necessary to do this?
Howdy, I was wondering if someone would be able to elaborate on this line: https://github.com/chicks/aes/blob/master/lib/aes/aes.rb#L155. I'm wrapping my head around AES and was confused by the modification of the key here. If a key is 256bit, is it necessary to do this?