Patent ID: 7283820

Claim:
An information processing system including a mobile phone, an information processing device, a relay server which relays access from the information processing device to a communication network, and a registration server which registers a user who uses the relay server, according to an instruction from the mobile phone, the mobile phone comprising: a first communication unit which accesses the registration server through a first communication link which is a secured communication link and obtains from the registration server a setting program which performs authentication with a communication destination on a potentially unsecured communication link and makes security settings for ensuring security of communication; and a short-range communication transmitting unit which sends the setting program to the information processing device by short-range communication; the information processing device comprising: a short-range communication receiving unit which obtains the setting program from the mobile phone; a security setting unit which executes the setting program to perform authentication with the relay server through a second communication link which is a potentially unsecured communication link and to make the security settings; and a second communication unit which communicates with the relay server through the second communication link to connect to the communication network if the security settings are made; the registration server comprising: a user registering unit which registers, on the basis of access from the mobile phone, an authorized user authorized to be relayed by the relay server; and a setting program transmitting unit which sends to the mobile phone the setting program for the authorized user to make the security settings on the information processing device; and the relay server comprising: a connection request processing unit which makes the security settings, provided that a connection request from the information processing device is received through the second communication link and that the user of the information processing device is authenticated as the authorized user; and an access relaying unit which relays access from the information processing device to the communication network if the security settings are made.