Joel,
I agree that the server MPI approach is a good one.
When you say zero installation I assume that you refer to
components, servers, and certificates because at least there
must be a secure direct (using shared secret) of a
shoppingcart to the server-MPI, and likely also a secure
success return so that the merchant knows that they payment
part etc. is ok and it is just shipping that remains.

Anders

----- Original Message ----- 
From: "Joel Hockey" <[EMAIL PROTECTED]>
To: "internet-payments" <[EMAIL PROTECTED]>; <[EMAIL PROTECTED]>
Sent: Monday, July 08, 2002 09:17
Subject: RE: VBV - 3D Secure hosted service for merchants/acquirers


Hi Amol,

I don't want to use this forum to try and push any commercial products and
talk about pricing etc, but I do think that people would be interested in
understanding the different technologies of vbv and I would be interested in
hearing from group members on this subject.

As you have pointed out and as the Visa functional requirements spec also
mentions
(http://www.international.visa.com/fb/paytech/secure/pdfs/3DS_70003-01_FR_Me
rchant_Server_Plug-in_v1.0.pdf section 2.4) there are multiple
implementation options for an MPI.  It may be a stand-alone software
component that each merchant must install, or it may be a server MPI that
can be run by an acquirer or PSP.

My personal opinion is that the server model provides a lot of benefits to
merchants and acquirers.  A server MPI product can provide
* zero installation requirements
* simpler integration
* no operational concerns
* integrated commerce support
* future proofing for different schemes

Whilst none of these are really 'technical' advantages, they are certainly
important.  A server model can also prevent what I would label a
merchant-in-the-middle attack where a merchant can obtain the cardholder's
password by intercepting all traffic between the cardholder and the ACS.

Does anyone else have an opinion on the merits of either model?

Joel



> -----Original Message-----
> From: Amol Natu [mailto:[EMAIL PROTECTED]]
> Sent: Monday, July 08, 2002 3:56 PM
> To: internet-payments; [EMAIL PROTECTED]
> Cc: Joel Hockey
> Subject: RE: VBV - 3D Secure hosted service for merchants/acquirers
> 
> 
> Joel
> 
> Thanks for the info. What is the kindof charging model does 
> QSI Payments
> have for such a hosted service to merchants/acquirers ? Is 
> this published
> some place ? Are you aware of similar implementations else-where ?
> 
> Yaron,
> Probably 'ibiz-software' only has a product version of the 
> MPI. I could not
> find any information talking of a hosted version.
> 
> Cheers
> Amol
> 
> 
>

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