Authentication system, authentication method, and authentication program

The authentication system according to claim, wherein the first mover includes:

• a first lower traveling body that is configured to travel on a traveling surface;
• and
• a first upper slewing body slewably attached to the first lower traveling body, and,
• in the case where the first mover receives no response to the transmitted request information from the second mover, the first mover retransmits the request information to the second mover after the first upper slewing body slews with respect to the first lower traveling body.

An authentication method for a first mover that is configured to travel and a second mover that is configured to travel and independent of the first mover, the authentication method comprising:

• a request information transmission step of making the first mover transmit, to the second mover through wireless communication, request information indicating a request for a signature to be affixed on specific information;
• a signing step of making the second mover affix the signature onto the specific information when the second mover receives the request information from the first mover;
• and
• a response information transmission step of making the second mover transmit a certificate including the specific information affixed with the signature to the first mover through wireless communication.

An authentication program to be executed by a computer for authentication between a first mover that is configured to travel and a second mover that is configured to travel and independent of the first mover, the authentication program comprising:

• causing the computer to execute:
• a request information transmission step of making the first mover transmit, to the second mover through wireless communication, request information indicating a request for a signature to be affixed on specific information;
• a signing step of making the second mover affix the signature onto the specific information when the second mover receives the request information from the first mover;
• and
• a response information transmission step of making the second mover transmit a certificate including the specific information affixed with the signature to the first mover through wireless communication.