| 摘要 |
PROBLEM TO BE SOLVED: To provide a method for authenticating communication opposite parties by which even information communication devices unable to receive authentication information required to authenticate the communication opposite party can conduct authentication processing. SOLUTION: In the case that an information communication device acting like an authentication side receives its own password and an address and an information communication device acting like a side to be authenticated receives the password and the address of the information communication device acting like the authentication side to conduct the authentication processing, the information communication device acting like the authentication side registers in advance passwords and addresses of information communication devices to be communication opposite parties, and when the information communication device acting like the authentication side becomes an information communication device acting like the side to be authenticated, the information communication device acting like the authentication side becoming the information communication device acting like the side to be authenticated uses the password and the address having been stored in advance of an information communication device acting like the authentication side to conduct the authentication processing. Further, when the own device has no function of receiving a password and an address of an information communication device at the authentication side in spite of it that the own device becomes the side to be authenticated and stores no password nor address, the own device responds it to the information communication device acting like at present the authentication side that the own device changes the roll to act like the authentication side. |
