3. Reasons for Caching

There are four reasons for deploying authentication caching:

  1. It adds convenience, especially when the Smart Card is used by multiple applications.

  2. It inhibits the transmission of PINs accross the network during remote system access. See Component Design section (Section 4.3, “Component Design”) for details.

  3. It reduces risk of PIN exposure to onlookers by decreasing the number of times card holder authentication is performed.

  4. It allows implementation of centralised Smart Card related policies that are enforced for all applications. Caching in itself is just an aspect of such a policy.

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