In some cases
there will be a natural choice, due to the business constraints of
the service offered by the RP. For example an immigration attorney
may need to rely on tokens issued by government authorities
because they are the only recognized source for the
required information. Issues to consider include the reputation
of the IP, the type of identities they provide, what kind of information
that includes, and how they acquired that information.
Customers may also view the RP in a particular light merely
because of the types of identities they choose to accept.
When selecting an IP that is used to provide information about
an individual, an organization can understand the value a particular
IP brings by asking the questions, ???What does this IP
know???? and ???How do they know that???? Let??™s look at some examples
of real-world IPs:
Payment Cards??”Ready for Prime Time?
Perhaps the most obvious??”and requested??”use of Information Cards is as a secure
method of performing payment transactions on the Internet. Looking at the
situation from a high level, CardSpace clearly brings cryptography into the
hands of users, which could provide banks, credit card companies, and other ?¬?-
nancial institutions the infrastructure to create secure tokens that can only be
viewed by the appropriate recipient.
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