Computer-readable medium, information processing device, information processing method and information processing system

An information processing device, comprising:

• a restriction unit for restricting use of functions of the information processing device;
• a handwritten input receiving unit;
• a signature input request unit for requesting an input of a handwritten signature;
• an input result sending unit for sending, to a server, a result of a handwritten input which has been input in response to the request from the signature input request unit and received by the handwritten input receiving unit;
• an authorization information input receiving unit for receiving an input of authorization information which has been issued by the server that has received the result of the handwritten input and which shows that the use of the functions of the information processing device is authorized;
• and
• a restriction cancellation unit for cancelling the restriction by the restriction unit,
• wherein the restriction cancellation unit cancels the restriction by the restriction unit when the input of the authorization information is received.

An information processing method in which a computer of an information processing device having a restriction unit for restricting use of functions of the information processing device and a handwritten input receiving unit operates:

• a signature input request unit for requesting an input of a handwritten signature;
• an input result sending unit for sending, to a server, a result of a handwritten input which has been input in response to the request from the signature input request unit and received by the handwritten input receiving unit;
• an authorization information input receiving unit for receiving an input of authorization information issued by the server that has received the result of the handwritten input and which shows that the use of the functions of the information processing device is authorized;
• and
• a restriction cancellation unit for cancelling the restriction by the restriction unit,
• wherein the restriction cancellation unit cancels the restriction by the restriction unit when the input of the authorization information is received.

An information processing system including an information processing device, and a server which is communicably connected to the information processing device,

• wherein the information processing device comprises:
• a restriction unit for restricting use of functions of the information processing device;
• a handwritten input receiving unit;
• a signature input request unit for requesting an input of a handwritten signature;
• an input result sending unit for sending, to a server, a result of a handwritten input which has been input in response to the request from the signature input request unit and received by the handwritten input receiving unit;
• an authorization information input receiving unit for receiving an input of authorization information which has been issued by the server that has received the result of the handwritten input and which shows that the use of the functions of the information processing device is authorized;
• and
• a restriction cancellation unit for cancelling the restriction by the restriction unit,
• wherein the server comprises:
• a unit for issuing the authorization information upon receiving the handwritten input result sent by the input result sending unit, and
• wherein the restriction cancellation unit cancels the restriction by the restriction unit when the input of the authorization information is received.