| 摘要 |
The present invention relates to 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 102 stores a capability list in which capabilities regarding algorithms for encryption and decryption treated by a reader/writer 100 are described. Similarly, a capability list 202 stores a capability list in which capabilities regarding algorithms for encryption and decryption treated by an IC card 200 are described. The reader/writer 100 and the IC card 200 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 invention can be applied, for example, to a device that performs communications by the NFCIP method. |
