Patent ID: 9135423
Filing Date: 2015-09-15
Classification: G06F,G06Q

Abstract:
1. An information processing system comprising: a portable terminal, an IC card, and an information processor structured to communicate with the IC card, the portable terminal comprising: a first authentication processor that performs authentication processing with the IC card for confirming that the portable terminal is communicating with a correct counterpart; a first secure communicator that performs encrypted communication between the IC card and the portable terminal; and an inputter for inputting information, the IC card comprising: a second authentication processor that performs the authentication processing with the portable terminal; a second secure communicator that performs the encrypted communication, the information processor comprising a card processor that performs information processing function of the IC card, wherein the first authentication processor of the portable terminal performs authentication processing with the second authentication processor of the IC card through the card processor on the information processor, information input from the inputter of the portable terminal is transmitted on a communication channel from the first secure communicator of the portable terminal to the second secure communicator of the IC card that is a correct counterpart as confirmed by the authentication processing through the card processor of the information processor structured to communicate with the IC card that is the correct counterpart, and the communication channel that is encrypted based on confidential information shared between the portable terminal and the IC card, wherein the IC card further comprises; a collation processor that performs collation using information input from the inputter of the portable terminal; and a read/write permitter that permits reading from/writing to the IC card when the collation is successful by the collation processor, and wherein information input from the inputter of the portable terminal is input from the second secure communicator of the IC card that is the correct counterpart as confirmed by the authentication processor to the collation processor of the IC card.