Patent ID: 7603557

Claim:
A master communication device requested for authentication for connection from at least one slave communication device, the master communication device comprising: a receiving section for receiving, from a slave communication device among any one of the at least one slave communication device, an authentication request including device information by which the slave communication device is capable of being determined to be a source, and for monitoring and determining whether or not the authentication request is changed by an unspecified third party while being transmitted; a display section for, when it is determined that the authentication request is not changed, displaying the device information included in the authentication request on a screen thereof; an input section for receiving, from a user, an input of a determination result obtained based on the displayed device information, by allowing the user to determine whether or not to verify the authentication with the slave communication device which is a source of the authentication request determined not to be changed; a transmission section for transmitting an authentication response including information indicative of verification or non-verification of the authentication with the slave communication device in accordance with the determination result input to the input section; and an authentication section for, when the information included in the authentication response is indicative of verification of the authentication, performing key exchange with the slave communication device using the device information included in the authentication request and the information included in the authentication response.