Ron,
I would agree with William on not comparing medical 'credentialing' with
some type of trading partner authentication.   Medical credentialing is
a very paper intensive and expensive endeavor.  It is meant to be a big
hurdle to prevent those who might casually think of committing fraud and
endangering public health.  Look at this link for more info:
http://www.managedcaregroup.com/mcrmm08.htm

Regards,

David Frenkel
Business Development
GEFEG USA
Global Leader in Ecommerce Tools
www.gefeg.com
425-260-5030

-----Original Message-----
From: William J. Kammerer [mailto:[EMAIL PROTECTED]] 
Sent: Monday, August 26, 2002 9:49 AM
To: WEDi/SNIP ID & Routing
Subject: Re: The "Mao Zedong" PKI Model

"Credentialing" of medical professionals, institutions and payers is a
different matter than simply having some assurance that the guy at the
other end of the digital dial-tone is who he purports to be.

When CPPs are distributed "out-of-band," as when a payer and a provider
exchange them as part of a manual EDI enrollment process, the CPPs
themselves and any included digital certificates can automatically  be
"trusted" -  the certificates can be self-signed as there's no need for
a certificate authority.  This model works today: after all, people send
EDI data to their partners based on manual setup processes.

When an intermediary like a Clearinghouse or VAN is involved, trust can
be delegated.  If my big respectable clearinghouse says I can reach
payer so-and-so by using a particular payer ID in the ISA, there's no
reason to distrust them - I assume they've done at least as much due
diligence as I would have done.  I can safely send PHI within 837s to
the clearinghouse addressed to the payer with reasonable assurance that
only the payer (and perhaps the CH itself) will be able to see the data.
In this case, it's sufficient when sending over the public internet to
the CH to rely on the CH's digital certificate, which I may obtain
"out-of-band."  Encryption (and digital IDs) aren't even necessary when
using direct dialing or leased lines with the clearinghouse.

Only when we're relying on the Healthcare CPP Registry to obtain
information do we really have to depend on digital certificates for
authentication - otherwise we have no idea whether some scofflaw has
inserted a "counterfeit" CPP in there (which would fool a provider into
sending PHI-laden 837s to what he thought was a real insurance
company).

In short, authentication becomes a critical problem only when using the
Registry.  Merely using the CPP itself, exchanged "out-of-band" between
known trading partners or obtained from a trusted intermediary like a
clearinghouse, does not require the use of CA-signed certificates.

William J. Kammerer
Novannet, LLC.
Columbus, US-OH 43221-3859
+1 (614) 487-0320

----- Original Message -----
From: "Ronald Bowron" <[EMAIL PROTECTED]>
To: <[EMAIL PROTECTED]>; <[EMAIL PROTECTED]>
Sent: Monday, 12 August, 2002 06:22 PM
Subject: Re: The "Mao Zedong" PKI Model


William,

Credentials are to me something that are a must for business to trust
one another, I find it interesting that everyone wants trustworthy
credentials, but know one wants the responsibility.  And while it's not
a specific goal or issue for the routing group to resolve, without
proper digital credentials, we most likely will fail to gain sufficient
momentum from the industry to support our efforts for a CPP model.

So, I'll through my two cents into the discussion.

When we look at the business model for "Credentialing" that has been
sustained for years in the medical industry, I find it difficult to
believe that we must somehow come up with a new entity for digital
credentialing.

I'm not an expert in Provider Credentialing, but other organizations
are, and it is my understanding that all "Medical Providers" must
register with the State and be "Licensed" to provide specific services.
Therefore, it seems to me that the obvious choice for a CA would be the
Licensing authority.  If they can issue a paper license, why can't they
also issue and maintain digital certificates?  I would presume that the
technology and infrastructure to support such efforts would be
contracted out to some other organization (Verisign, Entrust, Digital
Trust, etc.)  but if a Provider chooses to do healthcare business
electronically, why can't the licensing organization provide a digital
certificate?

Same with a Payor organizations, it is my understanding that each payor
must be licensed to provide insurance in a particular state and
therefore should be able to receive both a paper license and digital
certificate.

I know several states are attempting to create services that provide
this type of trusted environment.  I'm specifically aware of the ACES
program sponsored by the GSA at the federal level and "Transact
Washington"  a state based certificate service to conduct electronic
transactions with the State agencies.

Because the healthcare industry provides a social service and in many
cases conduct business with the state, can we suggest that these
certificates be used to conduct private business transactions between
Covered Entities as well as public services transactions with state
agencies?  If so, it's seems it would be possible to include in the CPP
which certificates an organizations has obtained, and allow business
partners the opportunity to validate such certificate to determine the
level of trust they wish to associate with an entity.

Then the question becomes, will businesses accept a Federal certificate
or a State certificate of a certain class of entity (individual,
business representative, etc.) as a means to determine level of trust?

Ronald Bowron


>>> "William J. Kammerer" <[EMAIL PROTECTED]> 08/07/02 08:02AM >>>
Payers are not necessarily the best entities to serve as Certificate
Authorities (CA), for various technical reasons that I can get into
later. But payers identifying providers for the purposes of signing
X.509 certificates is a completely separate issue from payers
"credentialing" participating providers. I can certainly see how
provider malpractice sewage can back up into a payer's basement: after
all, the payer is the one who published the directory of participating
providers passed out to subscribers, and in effect forced patients to go
to one of those providers (because the patient wouldn't have been
compensated as much if he chose a non-participating provider). That's a
completely different matter, I believe, than serving as a CA for
identity purposes in e-commerce.

More likely, a payer would not want to serve as a CA simply because
other payers, trusting the first payer's judgement, would rely on the
certificate without any real benefit accruing to the signing payer.

William J. Kammerer
Novannet, LLC.
Columbus, US-OH 43221-3859
+1 (614) 487-0320



discussions on this listserv therefore represent the views of the
individual
participants, and do not necessarily represent the views of the WEDI
Board of
Directors nor WEDI SNIP.  If you wish to receive an official opinion,
post
your question to the WEDI SNIP Issues Database at
http://snip.wedi.org/tracking/.
Posting of advertisements or other commercial use of this listserv is
specifically prohibited.


discussions on this listserv therefore represent the views of the individual
participants, and do not necessarily represent the views of the WEDI Board of
Directors nor WEDI SNIP.  If you wish to receive an official opinion, post
your question to the WEDI SNIP Issues Database at
http://snip.wedi.org/tracking/.
Posting of advertisements or other commercial use of this listserv is
specifically prohibited.

Reply via email to