Key exchange system, information processing device, and method

Abstract

To provide a technology capable of acquiring an ID of a communication partner in performing key exchange with ID base authentication.SOLUTION: According to one aspect of the present disclosure, a key exchange system includes a plurality of communication terminals and a server. Each communication terminal included in the plurality of communication terminals includes a first transmission part configured so as to transmit address information of another communication terminal to be a communication partner to the server, and a key exchange part configured so as to perform mutual authentication and key exchange with the another communication terminal by key exchange with ID base authentication by using an ID transmitted from the server and an own ID. The server has a second transmission part configured so as to transmit an ID corresponding to the address information to the communication terminal in receiving the address information.SELECTED DRAWING: Figure 7

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