The total cost to the industry of adopting AES was enormous
Part of that was the cost of getting rid of years of cruft, though. Dropping in a new block cipher which operates on 128-bit blocks using 128-, 192-, and 256-bit keys would probably be much cheaper.
Part of that was the cost of getting rid of years of cruft, though. Dropping in a new block cipher which operates on 128-bit blocks using 128-, 192-, and 256-bit keys would probably be much cheaper.