<s>
Cover-coding	B-General_Concept
is	O
a	O
technique	O
for	O
obscuring	O
the	O
data	O
that	O
is	O
transmitted	O
over	O
an	O
insecure	O
link	O
,	O
to	O
reduce	O
the	O
risks	O
of	O
snooping	O
.	O
</s>
<s>
An	O
example	O
of	O
cover-coding	B-General_Concept
would	O
be	O
for	O
the	O
sender	O
to	O
perform	O
a	O
bitwise	O
XOR	O
(	O
exclusive	O
OR	O
)	O
of	O
the	O
original	O
data	O
with	O
a	O
password	O
or	O
random	O
number	O
which	O
is	O
known	O
to	O
both	O
sender	O
and	O
receiver	O
.	O
</s>
<s>
ISO	O
18000-6C	O
(	O
EPC	O
Class	O
1	O
Generation	O
2	O
)	O
RFID	B-Application
tags	I-Application
protect	O
some	O
operations	O
with	O
a	O
cover	O
code	O
.	O
</s>
