3 ms·
> The NSA recommended an S-Box change Which is true and commendable; however, in the exact same system they proposed weakening the key from 64bits to 48bits.
by akira2501 8y ago
> The NSA recommended an S-Box change
Which is true and commendable; however, in the exact same system they proposed weakening the key from 64bits to 48bits. IBM split the difference and we got 56bit DES.
- NickNameNick 8y agoThe shorter key length better reflects the actual security of the cipher - the longer key lengths were misleading. Or at least, that was the later justification.