| 摘要 |
A method for authenticating a user for use of a server computing device wherein the server computing device is connected by a network to a host device. Generating a key representation image having thereon a plurality of individual key images placed at random positions, each corresponding to a possible character value in an authentication phrase. Accepting a sequence corresponding to locations of mouse clicks representing user selections of character values in an attempted authentication phrase. Verifying that the sequence of location values corresponds to a correct authentication phrase by mapping the locations of the mouse clicks to the locations of the randomly placed key images. Alternatively, accepting a sequence corresponding to a transformation of personal identification number based on a random number and a numerical operation or selection in a matrix. |
