<s>
Delegated	B-Protocol
Path	I-Protocol
Validation	I-Protocol
(	O
DPV	O
)	O
is	O
a	O
method	O
for	O
offloading	O
to	O
a	O
trusted	O
server	B-Application
the	O
work	O
involved	O
in	O
validating	O
a	O
public	O
key	O
certificate	O
.	O
</s>
<s>
Combining	O
certificate	O
information	O
supplied	O
by	O
the	O
DPV	O
client	B-Protocol
with	O
certificate	O
path	O
and	O
revocation	O
status	O
information	O
obtained	O
by	O
itself	O
,	O
a	O
DPV	O
server	B-Application
is	O
able	O
to	O
apply	O
complex	O
validation	O
policies	O
that	O
are	O
prohibitive	O
for	O
each	O
client	B-Protocol
to	O
perform	O
.	O
</s>
