ECB vs CBC Encryption
pthree.org
pthree.org
block cipher _mode_
Because I chose AES in 256-bit mode
with 256-bit _key_
AES is operating on 256-bit blocks at a time
It operates on 128-bit blocks.
etc, etc.
Wikipedia page on modes of operation is a better and more correct introduction: https://en.wikipedia.org/wiki/Block_cipher_modes_of_operatio...