COMMUNICATION TERMINAL, AUTHENTICATION INFORMATION GENERATION DEVICE, AUTHENTICATION SYSTEM, AUTHENTICATION INFORMATION GENERATION PROGRAM, AUTHENTICATION INFORMATION GENERATION METHOD AND AUTHENTICATION METHOD

摘要

In order to able to access plural servers without complicating a log-in operation of a user to thereby reduce the operational load and operational cost of a system, a communication terminal (1) comprises an authentication request unit (11) for making an authentication request to a predetermined server (3) and an authentication request to a different server (4, 5), and a generation unit (12) for generating authentication information for the different server.  The authentication request unit (11) transmits authentication information for the predetermined server inputted by the user as the authentication request to the predetermined server (3) and transmits the authentication information for the different server generated by the generation unit (12) as the authentication request to the different server (4, 5).  The generation unit (12) generates the authentication information for the different server on the basis of the authentication information for the predetermined server and identification information relating to the different server (3, 4).