Disclosed is an information processing device suited to enhancing a
usability by simplifying the inputting, etc., of user authentication
information while assuring data confidentiality. A retaining means 301
retains information showing whether or not there has already been
performed an initial authentication, executed upon accessing for the
first time a function providing party for providing a cabinet function
with authentication. An acquiring means 303, if such initial
authentication has been done judging from the information within the
retaining means 303, acquires authentication information when making the
initial authentication. A setting means 305, if the initial
authentication has been done, sets the authentication information
acquired by the acquiring means 303 as authentication information for
using the cabinet function this time.