WSE 3/WseRM

[Micheal]

Hello Folks,

I was looking WSE 3.0/WseRM examples that comes with Microsoft WSE 3.0
Reliable Messaging-labs.
All ASMX / WseRM samples had a following tag in their Config files.

<security>
<!-- Sample uses WSE test certs -->
<x509 allowTestRoot="true" />
</security>

So I'm asking that is certification file a must when using WSE / WseRM?
Or can WseRM work without certifications?

Thanks,

Michael