Patent ID: 7725946
Filing Date: 2010-05-25
Classification: G06F

Abstract:
1. A computer readable recording medium storing an authenticating program controlling a computer to function as: input supervising means that supervises input manipulation of a computer while a user is logged in the computer; input information acquiring means that acquires input information related to an input manipulation detected by the input supervising means, the input information including a manipulation object identifying an object of the input manipulation, a manipulation class identifying a process executed for the manipulation object, and a manipulation characteristic identifying a manner in which the process is executed; characteristic information storing means that stores characteristic information including stored manipulation objects, stored manipulation classes identifying processes executed for the stored manipulation objects, stored manipulation characteristics identifying manners of executing the processes, and characteristic frequencies, each characteristic frequency corresponding to one of the stored manipulation objects, with a corresponding manipulation class, and a corresponding stored manipulation characteristic; frequency acquiring means that sorts the input information into groups of input manipulations having the same manipulation object and the same manipulation class, and acquires a frequency of appearance of a manipulation characteristic in a group based on the sorted input information corresponding to input manipulations of the group; frequency based comparing means that acquires a characteristic frequency corresponding to the same manipulation characteristic as the manipulation characteristic in the group, from the characteristic information, and compares the characteristic frequency with the frequency of appearance; frequency based authenticating means that decides whether the frequency of appearance is larger than the characteristic frequency based on a result of comparing; and frequency based control means that switches the computer in a locked operating state in which the user is prevented from using the computer, if the frequency based authenticating means has decided that the frequency of appearance is larger than the characteristic frequency.