<s>
In	O
cryptography	O
,	O
the	O
IDEA	B-Algorithm
NXT	I-Algorithm
algorithm	O
(	O
previously	O
known	O
as	O
FOX	O
)	O
is	O
a	O
block	O
cipher	O
designed	O
by	O
Pascal	O
Junod	O
and	O
Serge	O
Vaudenay	O
of	O
EPFL	O
(	O
Lausanne	O
,	O
Switzerland	B-Protocol
)	O
.	O
</s>
<s>
In	O
May	O
2005	O
,	O
it	O
was	O
announced	O
by	O
MediaCrypt	O
under	O
the	O
name	O
IDEA	B-Algorithm
NXT	I-Algorithm
.	O
</s>
<s>
IDEA	B-Algorithm
NXT	I-Algorithm
is	O
the	O
successor	O
to	O
the	O
International	B-Algorithm
Data	I-Algorithm
Encryption	I-Algorithm
Algorithm	I-Algorithm
(	O
IDEA	B-Algorithm
)	O
and	O
also	O
uses	O
the	O
Lai	B-Algorithm
–	I-Algorithm
Massey	I-Algorithm
scheme	I-Algorithm
.	O
</s>
<s>
MediaCrypt	O
AG	O
holds	O
patents	O
on	O
elements	O
of	O
IDEA	B-Algorithm
and	O
IDEA	B-Algorithm
NXT	I-Algorithm
.	O
</s>
