Communication system and communication method

摘要

The present embodiments relate to a communication system, communication method, information processor, method, device, program, and recording medium which permit plural algorithms to be treated and which can impart expansibility to communications.;A capability list stores a capability list in which capabilities regarding algorithms for encryption and decryption treated by a reader/writer are described. Similarly, a capability list stores a capability list in which capabilities regarding algorithms for encryption and decryption treated by an IC card are described. The reader/writer and the IC card exchange their mutual capability lists, select algorithms capable of securing a security level according to the importance of the data sent and received, and perform communications based on the selected algorithms. The present embodiments can be applied, for example, to a device that performs communications by the NFCIP method.

主权项

1. A first device for performing communication with a second device, the first device comprising:
circuitry configured to: send, to the second device, a capability list indicating capabilities regarding each encryption algorithm which is capable of being used by the first device; receive, from the second device, identification information and a first key, wherein the first key and the identification information are used by the first device to create a session key; and send an encrypted session key created after the reception of the identification information and encrypted by the first key.