Reader device, data processing apparatus mounted with the same and genuine/counterfeit judgment method

摘要

A reader device performs control to cause rates of transmission at the time of transmitting an authentication command to an IC chip included in a passport to be different from each other. Then, when the rates of transmission are caused to be different from each other, each of required times T1 and T2 required after transmitting the authentication command to the IC chip until receiving a response to the authentication command from the IC chip is measured. An operation time Tc required for execution of the authentication command in the IC chip is calculated on the basis of the required times T1 and T2 measured as described above, and, further, genuine/counterfeit judgment of the IC chip (genuine/counterfeit judgment of the passport is performed on the basis of the calculated operation time Tc.

主权项

1. A reader device reading information from an information storage medium, wherein
the information storage medium includes an IC chip executing a command transmitted from the reader device; and the reader device comprises:
a command communicator transmitting a plurality of commands to the information storage medium and receiving a plurality of response signals from the information storage medium obtained as a result thereof; a storage storing feature points of the IC chip; a genuine/counterfeit judger extracting the feature points from at least one of the response signals from the information storage medium and judging whether the IC chip is a genuine or counterfeit one on the basis of the extracted feature points; and a communication controller causing the command communicator to transmit a first command and, after receiving a first response signal from the information storage medium obtained as a result thereof, causing the command communicator to successively transmit a second command that is the same as the first command and that has a different communication specification.