The merchant??™s acceptance of
the card is subject to the validation of the issuer. In the
event the merchant suspects tampering, or the card is
from an unrecognized issuer, the merchant will likely
reject the transaction. With Information Cards, this
process is enhanced by the use of Secure Sockets Layer
(SSL) certi?¬?cates to ensure the RP that the card issuer is
Governments provide
identity cards
that have veri?¬?ed
claims
311
who he claims to be and that the data is presented in an
unaltered state.
Credit cards. Cards that permit the manipulation of an
account on behalf of the user. Credit cards are presented
to merchants as a method of communicating account
information, where once the merchant has it, they communicate
with the card issuer and perform limited transactions
with the account (charges or refunds). The
merchant doesn??™t receive unrestricted access to the account
??”they can??™t detail all the transactions that have
occurred, and they can??™t query the credit balance or
perform other such transactions on behalf of the user.
Although the infrastructure for these types of transactions
with Information Cards isn??™t in place, it would be possible
to issue cards that provide access to account data
via an authenticated connection.
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