Abstract: An information processing apparatus generates a command for a communication terminal apparatus and a retry command and successively outputs the generated command and retry command to an information processing terminal apparatus. The information processing terminal apparatus acquires the command for the communication terminal apparatus and the retry command that have successively been output from the information processing apparatus and outputs the acquired command to the communication terminal apparatus. Further, in a case of performing a retry process due to unavailability of a response to the command, the information processing terminal apparatus outputs the acquired retry command to the communication terminal apparatus. The retry process can be performed without waiting for the information processing terminal apparatus to output a command request to the information processing apparatus and acquire a retry command.

Abstract: An information processing apparatus generates a command for a communication terminal apparatus and a retry command and successively outputs the generated command and retry command to an information processing terminal apparatus. The information processing terminal apparatus acquires the command for the communication terminal apparatus and the retry command that have successively been output from the information processing apparatus and outputs the acquired command to the communication terminal apparatus. Further, in a case of performing a retry process due to unavailability of a response to the command, the information processing terminal apparatus outputs the acquired retry command to the communication terminal apparatus. The retry process can be performed without waiting for the information processing terminal apparatus to output a command request to the information processing apparatus and acquire a retry command.

Abstract: It is desirable to provide a technology that enables authentication even in a terminal not capable of RF communication. Provided is an information processing device including: a code generation unit that generates a code in which part of information necessary for authentication and identification information are embedded; a display control unit that controls display of the code; and an authentication unit that performs a rest of the authentication by using a connection established, after part of the authentication is performed on the basis of the part of the information necessary for the authentication and the connection based on the identification information included in the code is established.

Abstract: There is provided a communication device, an information processing device, and a data processing system that can reduce a maximum value of a processing time of the entire system. A communication unit of a reader-writer transmits a predetermined request to a plurality of servers on a basis of a result obtained by transmitting a command to an IC card, and receives a response to the request from the plurality of servers. A control unit of the reader-writer executes next processing on a basis of the response of one of the plurality of servers, the response having been received earliest among the plurality of servers. The present technology can be applied to a data processing system or the like, for example.

Abstract: To implement a configuration of preventing a fraud regarding a transaction log regarding a transaction between an IC card and a reader/writer. The IC card receives log configuration information necessary for generating a transaction log from the reader/writer, generates the transaction log using the received data, executes signature processing for the generated transaction log to generate a transaction log with card signature, and transmits the generated transaction log with card signature to the reader/writer. Moreover, the IC card generates a transaction log with chain signature obtained by performing a new signature using an IC card-side immediately preceding transaction corresponding card signature and a reader/writer-side immediately preceding transaction corresponding reader/writer signature as signature target data, and transmits the transaction log with chain signature to the management server.