<s>
PMAC	B-Algorithm
,	O
which	O
stands	O
for	O
parallelizable	B-Algorithm
MAC	I-Algorithm
,	O
is	O
a	O
message	B-Algorithm
authentication	I-Algorithm
code	I-Algorithm
algorithm	O
.	O
</s>
<s>
PMAC	B-Algorithm
is	O
a	O
method	O
of	O
taking	O
a	O
block	O
cipher	O
and	O
creating	O
an	O
efficient	O
message	B-Algorithm
authentication	I-Algorithm
code	I-Algorithm
that	O
is	O
reducible	O
in	O
security	O
to	O
the	O
underlying	O
block	O
cipher	O
.	O
</s>
<s>
PMAC	B-Algorithm
is	O
similar	O
in	O
functionality	O
to	O
the	O
OMAC	B-Algorithm
algorithm	O
.	O
</s>
<s>
PMAC	B-Algorithm
is	O
no	O
longer	O
patented	O
and	O
can	O
be	O
used	O
royalty-free	O
.	O
</s>
