<s>
In	O
cryptography	O
,	O
Nimbus	B-Algorithm
is	O
a	O
block	O
cipher	O
invented	O
by	O
Alexis	O
Machado	O
in	O
2000	O
.	O
</s>
<s>
Nimbus	B-Algorithm
was	O
broken	O
by	O
Vladimir	O
Furman	O
;	O
he	O
found	O
a	O
differential	O
attack	O
using	O
only	O
256	O
chosen	O
plaintexts	O
.	O
</s>
