Patent ID: 8181023

Claim:
An information processing device comprising: an IC chip that includes a first storage area and that can read and process data from the first storage area, the IC chip performing non-contact communication with an external device that supplies power to the IC chip; a storage module that includes a second storage area provided externally to the IC chip; and a cellular telephone circuit that includes a third storage area and activates an application for establishing connection between the IC chip and the storage module, the cellular telephone circuit being different from the IC chip, wherein: key data is stored in the first storage area for, at least one of, the purpose of performing two-way authentication between the IC chip and the storage module, and the purpose of encrypting and decrypting data stored in the second storage area, a cache area is allocated to the first storage area to temporarily store data, and the IC chip, in accordance with a request from the external device, after performing the two-way authentication with the storage module based on the first key data, reads specified data, that is used to satisfy the request, from the second storage area into the cache area of the IC chip, and processes one of a part of the data and all of the data read into the cache area.