Importance

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Abstract

A secure portable electronic device for providing secure services when used in conjunction with a host computer. The secure portable device includes a read-only memory partition, a read/write memory partition, and a secure memory partition. The secure portable device includes instructions stored in the read-only partition including a host agent containing instructions executable by the host computer. The secure portable device also includes instructions stored in the secure memory partition. These instructions include a card agent containing instructions executable by central processing units secure portable electronic device, and includes a card agent communications module for communicating with the host agent; and a security module for accessing private information stored in the secure memory partition. The host agent includes a host agent communications module for communicating with the card agent and at least one function requiring use of private information stored in the secure memory partition of the portable device and operable to transmit a request to the card agent to perform a corresponding function requiring the use of private information stored on the portable device.

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First Claim