| 摘要 |
<p>An authentication device (10), upon receiving a short message (SMS) indicating an access request to an internal corporate system (40) through a mobile communications network (50) from a mobile phone (20), determines whether or not the phone number used as a source address of the short message is recorded in an authentication DB. If the phone number is recorded in the authentication DB, the authentication device (10) issues a one-time password, and stores the one-time password in the authentication DB in addition to transmitting thereof to the terminal (mobile phone (20) or PC (30)) performing the access request. Then, the authentication device (10), according to the access request from the terminal (mobile phone (20) or PC (30)), performs authentication using the one-time password and allows the authorized terminal to access the internal corporate system (40).</p> |
