<s>
In	O
cryptography	O
,	O
truncated	B-General_Concept
differential	I-General_Concept
cryptanalysis	I-General_Concept
is	O
a	O
generalization	O
of	O
differential	O
cryptanalysis	O
,	O
an	O
attack	O
against	O
block	O
ciphers	O
.	O
</s>
<s>
This	O
technique	O
has	O
been	O
applied	O
to	O
SAFER	B-Algorithm
,	O
IDEA	B-Algorithm
,	O
Skipjack	B-Algorithm
,	O
E2	B-Algorithm
,	O
Twofish	B-Algorithm
,	O
Camellia	B-Algorithm
,	O
CRYPTON	B-Algorithm
,	O
and	O
even	O
the	O
stream	B-Algorithm
cipher	I-Algorithm
Salsa20	B-Algorithm
.	O
</s>
