Feistel Cipher Computerphile

You don't just 'run a cipher' - you need a mode of operation. Dr Mike Pound explains some relative to the The only viable alternative to AES? Dr Mike Pound unravels the clever ChaCha We look at where the ubiquitous AES came from. Dr Mike Pound introduces the Rijndael algorithm. SP Networks: ... Spies used to meet in the park to exchange Substitution-permutation networks are the basis for almost all modern symmetric