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Vittorio Bertocci, Garrett Serack, Caleb Baker

"Understanding Windows CardSpace: An Introduction to the Concepts and Challenges of Digital Identities"

The token is then
passed to code to process the token. This code can be written in
Only a simple
tag is
required for a site
to use Information
Cards
A Token Processor
page is needed to
get information
from the token
175
any language, including C#, VB.NET, Java, and PHP. It is up to
the website to decide which libraries best ?¬?t with their deployment.
Is CardSpace Just for Websites?
CardSpace provides a consistent user experience for accessing
digital identities across a range of applications. The ?¬?rst version
of CardSpace supports four main categories of applications.
 Web pages. This is one of the major areas of focus for
CardSpace. Web page developers need to make minimal
changes to their HTML to support CardSpace. This can
be done by using the ???application/xinformationCard??™
tag. There are also a number
of tool kits available to help with deployment.
 Rich applications using web services. Windows
Communication Foundation (WCF) supports CardSpace
and greatly simpli?¬?es writing a web service with a clientside
application that uses CardSpace for authentication.
Often switching from one authentication type (such as
username and password) to Information Cards is as
simple as changing a few lines in the web services con-
?¬?guration ?¬?le.


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