<s>
designers	O
it	O
"	O
uses	O
public-key-like	O
operations	O
as	O
confusion	O
and	O
diffusion	O
means.	O
"	O
</s>
<s>
The	O
designers	O
defined	O
four	O
specific	O
variants	O
of	O
xmx	B-Algorithm
:	O
</s>
