| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To surely register a client device in a server device with high secrecy regardless of the number of operation keys or arithmetic capability of the client device, and to improve safety while securing the convenience of a user after registration. <P>SOLUTION: In an authentication system 100, a server device 110 makes a voice output part 210 output voice information to promote a predetermined operation to a user, and receives operation information based on a user operation to be executed in response to the voice information from a client device 140, and determines whether or not an operation shown by the received operation information and a predetermined operation shown by the voice information are correctly associated with each other, and when determining that the operation shown by the operation information and the predetermined operation shown by the voice information are correctly associated with each other, the client device 140 is registered. <P>COPYRIGHT: (C)2011,JPO&INPIT</p> |
